From 76d08bb3f09054edc45326ce5c698a3f6c45f5d0 Mon Sep 17 00:00:00 2001 From: Tony Luck Date: Mon, 5 Jun 2006 13:54:14 -0700 Subject: [IA64] Add "model name" to /proc/cpuinfo Linux ia64 port tried to decode the processor family number to something human-readable, but Intel brandnames don't change synchronously with updates to the family number. Adopt a more i386-like approach and just print the family number in decimal. Add a new field "model name" that uses PAL_BRAND_INFO to find the official name for the cpu, or on older systems, falls back to using the well-known codenames (Merced, McKinley, Madison). Signed-off-by: Tony Luck --- include/asm-ia64/pal.h | 10 ++++++++++ include/asm-ia64/processor.h | 1 + 2 files changed, 11 insertions(+) (limited to 'include') diff --git a/include/asm-ia64/pal.h b/include/asm-ia64/pal.h index 37e52a2836b0..312109d7be97 100644 --- a/include/asm-ia64/pal.h +++ b/include/asm-ia64/pal.h @@ -78,6 +78,7 @@ #define PAL_VM_TR_READ 261 /* read contents of translation register */ #define PAL_GET_PSTATE 262 /* get the current P-state */ #define PAL_SET_PSTATE 263 /* set the P-state */ +#define PAL_BRAND_INFO 274 /* Processor branding information */ #ifndef __ASSEMBLY__ @@ -1133,6 +1134,15 @@ ia64_pal_set_pstate (u64 pstate_index) return iprv.status; } +/* Processor branding information*/ +static inline s64 +ia64_pal_get_brand_info (char *brand_info) +{ + struct ia64_pal_retval iprv; + PAL_CALL_STK(iprv, PAL_BRAND_INFO, 0, (u64)brand_info, 0); + return iprv.status; +} + /* Cause the processor to enter LIGHT HALT state, where prefetching and execution are * suspended, but cache and TLB coherency is maintained. */ diff --git a/include/asm-ia64/processor.h b/include/asm-ia64/processor.h index b3bd58e80690..03100c4272c6 100644 --- a/include/asm-ia64/processor.h +++ b/include/asm-ia64/processor.h @@ -164,6 +164,7 @@ struct cpuinfo_ia64 { __u8 family; __u8 archrev; char vendor[16]; + char *model_name; #ifdef CONFIG_NUMA struct ia64_node_data *node_data; -- cgit v1.2.3 From 2ab561a116e16cdee3ae0e13d51910634c15aee9 Mon Sep 17 00:00:00 2001 From: David Mosberger-Tang Date: Wed, 21 Jun 2006 11:19:22 -0700 Subject: [IA64] esi-support Add support for making ESI calls [1]. ESI stands for "Extensible SAL specification" and is basically a way for invoking firmware subroutines which are identified by a GUID. I don't know whether ESI is used by vendors other than HP (if you do, please let me know) but as firmware "backdoors" go, this seems one of the cleaner methods, so it seems reasonable to support it, even though I'm not aware of any publicly documented ESI calls. I'd have liked to make the ESI module completely stand-alone, but unfortunately that is not easily (or not at all) possible because in order to make ESI calls in physical mode, a small stub similar to the EFI stub is needed in the kernel proper. I did try to create a stub that would work in user-level, but it quickly got ugly beyond recognition (e.g., the stub had to make assumptions about how the module-loader generated call-stubs work) and I didn't even get it to work (that's probably fixable, but I didn't bother because I concluded it was too ugly anyhow). While it's not terribly elegant to have kernel code which isn't actively used in the kernel proper, I think it might be worth making an exception here for two reasons: the code is trivially small (all that's really needed is esi_stub.S) and by including it in the normal kernel distro, it might encourage other OEMs to also use ESI, which I think would be far better than each inventing their own firmware "backdoor". The code was originally written by Alex. I just massaged and packaged it a bit (and perhaps messed up some things along the way...). Changes since first version of patch that was posted to mailing list: * Export ia64_esi_call and ia64_esi_call_phys() as GPL symbols. * Disallow building esi.c as a module for now. Building as a module would currently lead to an unresolved reference to "sal_lock" on SMP kernels because that symbol doesn't get exported. * Export esi_call_phys() only if ESI is enabled. * Remove internal stuff from esi.h and add a "proc_type" argument to ia64_esi_call() such that serialization-requirements can be expressed (ESI follows SAL here, where procedure calls may have to be serialized, are MP-safe, or MP-safe andr reentrant). [1] h21007.www2.hp.com/dspp/tech/tech_TechDocumentDetailPage_IDX/1,1701,919,00.html Signed-off-by: David Mosberger Signed-off-by: Alex Williamson Signed-off-by: Tony Luck --- arch/ia64/Kconfig | 8 ++ arch/ia64/kernel/Makefile | 5 ++ arch/ia64/kernel/esi.c | 205 ++++++++++++++++++++++++++++++++++++++++++ arch/ia64/kernel/esi_stub.S | 96 ++++++++++++++++++++ arch/ia64/kernel/ia64_ksyms.c | 4 + include/asm-ia64/esi.h | 30 +++++++ 6 files changed, 348 insertions(+) create mode 100644 arch/ia64/kernel/esi.c create mode 100644 arch/ia64/kernel/esi_stub.S create mode 100644 include/asm-ia64/esi.h (limited to 'include') diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig index 0f3076a820c3..bc106519482c 100644 --- a/arch/ia64/Kconfig +++ b/arch/ia64/Kconfig @@ -413,6 +413,14 @@ config IA64_PALINFO config SGI_SN def_bool y if (IA64_SGI_SN2 || IA64_GENERIC) +config IA64_ESI + bool "ESI (Extensible SAL Interface) support" + help + If you say Y here, support is built into the kernel to + make ESI calls. ESI calls are used to support vendor-specific + firmware extensions, such as the ability to inject memory-errors + for test-purposes. If you're unsure, say N. + source "drivers/sn/Kconfig" source "drivers/firmware/Kconfig" diff --git a/arch/ia64/kernel/Makefile b/arch/ia64/kernel/Makefile index 09a0dbc17fb6..66ac8e3dca9c 100644 --- a/arch/ia64/kernel/Makefile +++ b/arch/ia64/kernel/Makefile @@ -31,6 +31,11 @@ obj-$(CONFIG_KPROBES) += kprobes.o jprobes.o obj-$(CONFIG_IA64_UNCACHED_ALLOCATOR) += uncached.o mca_recovery-y += mca_drv.o mca_drv_asm.o +obj-$(CONFIG_IA64_ESI) += esi.o +ifneq ($(CONFIG_IA64_ESI),) +obj-y += esi_stub.o # must be in kernel proper +endif + # The gate DSO image is built using a special linker script. targets += gate.so gate-syms.o diff --git a/arch/ia64/kernel/esi.c b/arch/ia64/kernel/esi.c new file mode 100644 index 000000000000..ebf4e988e78c --- /dev/null +++ b/arch/ia64/kernel/esi.c @@ -0,0 +1,205 @@ +/* + * Extensible SAL Interface (ESI) support routines. + * + * Copyright (C) 2006 Hewlett-Packard Co + * Alex Williamson + */ +#include +#include +#include +#include + +#include +#include + +MODULE_AUTHOR("Alex Williamson "); +MODULE_DESCRIPTION("Extensible SAL Interface (ESI) support"); +MODULE_LICENSE("GPL"); + +#define MODULE_NAME "esi" + +#define ESI_TABLE_GUID \ + EFI_GUID(0x43EA58DC, 0xCF28, 0x4b06, 0xB3, \ + 0x91, 0xB7, 0x50, 0x59, 0x34, 0x2B, 0xD4) + +enum esi_systab_entry_type { + ESI_DESC_ENTRY_POINT = 0 +}; + +/* + * Entry type: Size: + * 0 48 + */ +#define ESI_DESC_SIZE(type) "\060"[(unsigned) (type)] + +typedef struct ia64_esi_desc_entry_point { + u8 type; + u8 reserved1[15]; + u64 esi_proc; + u64 gp; + efi_guid_t guid; +} ia64_esi_desc_entry_point_t; + +struct pdesc { + void *addr; + void *gp; +}; + +static struct ia64_sal_systab *esi_systab; + +static int __init esi_init (void) +{ + efi_config_table_t *config_tables; + struct ia64_sal_systab *systab; + unsigned long esi = 0; + char *p; + int i; + + config_tables = __va(efi.systab->tables); + + for (i = 0; i < (int) efi.systab->nr_tables; ++i) { + if (efi_guidcmp(config_tables[i].guid, ESI_TABLE_GUID) == 0) { + esi = config_tables[i].table; + break; + } + } + + if (!esi) + return -ENODEV;; + + systab = __va(esi); + + if (strncmp(systab->signature, "ESIT", 4) != 0) { + printk(KERN_ERR "bad signature in ESI system table!"); + return -ENODEV; + } + + p = (char *) (systab + 1); + for (i = 0; i < systab->entry_count; i++) { + /* + * The first byte of each entry type contains the type + * descriptor. + */ + switch (*p) { + case ESI_DESC_ENTRY_POINT: + break; + default: + printk(KERN_WARNING "Unkown table type %d found in " + "ESI table, ignoring rest of table\n", *p); + return -ENODEV; + } + + p += ESI_DESC_SIZE(*p); + } + + esi_systab = systab; + return 0; +} + + +int ia64_esi_call (efi_guid_t guid, struct ia64_sal_retval *isrvp, + enum esi_proc_type proc_type, u64 func, + u64 arg1, u64 arg2, u64 arg3, u64 arg4, u64 arg5, u64 arg6, + u64 arg7) +{ + struct ia64_fpreg fr[6]; + unsigned long flags = 0; + int i; + char *p; + + if (!esi_systab) + return -1; + + p = (char *) (esi_systab + 1); + for (i = 0; i < esi_systab->entry_count; i++) { + if (*p == ESI_DESC_ENTRY_POINT) { + ia64_esi_desc_entry_point_t *esi = (void *)p; + if (!efi_guidcmp(guid, esi->guid)) { + ia64_sal_handler esi_proc; + struct pdesc pdesc; + + pdesc.addr = __va(esi->esi_proc); + pdesc.gp = __va(esi->gp); + + esi_proc = (ia64_sal_handler) &pdesc; + + ia64_save_scratch_fpregs(fr); + if (proc_type == ESI_PROC_SERIALIZED) + spin_lock_irqsave(&sal_lock, flags); + else if (proc_type == ESI_PROC_MP_SAFE) + local_irq_save(flags); + else + preempt_disable(); + *isrvp = (*esi_proc)(func, arg1, arg2, arg3, + arg4, arg5, arg6, arg7); + if (proc_type == ESI_PROC_SERIALIZED) + spin_unlock_irqrestore(&sal_lock, + flags); + else if (proc_type == ESI_PROC_MP_SAFE) + local_irq_restore(flags); + else + preempt_enable(); + ia64_load_scratch_fpregs(fr); + return 0; + } + } + p += ESI_DESC_SIZE(*p); + } + return -1; +} +EXPORT_SYMBOL_GPL(ia64_esi_call); + +int ia64_esi_call_phys (efi_guid_t guid, struct ia64_sal_retval *isrvp, + u64 func, u64 arg1, u64 arg2, u64 arg3, u64 arg4, + u64 arg5, u64 arg6, u64 arg7) +{ + struct ia64_fpreg fr[6]; + unsigned long flags; + u64 esi_params[8]; + char *p; + int i; + + if (!esi_systab) + return -1; + + p = (char *) (esi_systab + 1); + for (i = 0; i < esi_systab->entry_count; i++) { + if (*p == ESI_DESC_ENTRY_POINT) { + ia64_esi_desc_entry_point_t *esi = (void *)p; + if (!efi_guidcmp(guid, esi->guid)) { + ia64_sal_handler esi_proc; + struct pdesc pdesc; + + pdesc.addr = (void *)esi->esi_proc; + pdesc.gp = (void *)esi->gp; + + esi_proc = (ia64_sal_handler) &pdesc; + + esi_params[0] = func; + esi_params[1] = arg1; + esi_params[2] = arg2; + esi_params[3] = arg3; + esi_params[4] = arg4; + esi_params[5] = arg5; + esi_params[6] = arg6; + esi_params[7] = arg7; + ia64_save_scratch_fpregs(fr); + spin_lock_irqsave(&sal_lock, flags); + *isrvp = esi_call_phys(esi_proc, esi_params); + spin_unlock_irqrestore(&sal_lock, flags); + ia64_load_scratch_fpregs(fr); + return 0; + } + } + p += ESI_DESC_SIZE(*p); + } + return -1; +} +EXPORT_SYMBOL_GPL(ia64_esi_call_phys); + +static void __exit esi_exit (void) +{ +} + +module_init(esi_init); +module_exit(esi_exit); /* makes module removable... */ diff --git a/arch/ia64/kernel/esi_stub.S b/arch/ia64/kernel/esi_stub.S new file mode 100644 index 000000000000..6b3d6c1f99b6 --- /dev/null +++ b/arch/ia64/kernel/esi_stub.S @@ -0,0 +1,96 @@ +/* + * ESI call stub. + * + * Copyright (C) 2005 Hewlett-Packard Co + * Alex Williamson + * + * Based on EFI call stub by David Mosberger. The stub is virtually + * identical to the one for EFI phys-mode calls, except that ESI + * calls may have up to 8 arguments, so they get passed to this routine + * through memory. + * + * This stub allows us to make ESI calls in physical mode with interrupts + * turned off. ESI calls may not support calling from virtual mode. + * + * Google for "Extensible SAL specification" for a document describing the + * ESI standard. + */ + +/* + * PSR settings as per SAL spec (Chapter 8 in the "IA-64 System + * Abstraction Layer Specification", revision 2.6e). Note that + * psr.dfl and psr.dfh MUST be cleared, despite what this manual says. + * Otherwise, SAL dies whenever it's trying to do an IA-32 BIOS call + * (the br.ia instruction fails unless psr.dfl and psr.dfh are + * cleared). Fortunately, SAL promises not to touch the floating + * point regs, so at least we don't have to save f2-f127. + */ +#define PSR_BITS_TO_CLEAR \ + (IA64_PSR_I | IA64_PSR_IT | IA64_PSR_DT | IA64_PSR_RT | \ + IA64_PSR_DD | IA64_PSR_SS | IA64_PSR_RI | IA64_PSR_ED | \ + IA64_PSR_DFL | IA64_PSR_DFH) + +#define PSR_BITS_TO_SET \ + (IA64_PSR_BN) + +#include +#include + +/* + * Inputs: + * in0 = address of function descriptor of ESI routine to call + * in1 = address of array of ESI parameters + * + * Outputs: + * r8 = result returned by called function + */ +GLOBAL_ENTRY(esi_call_phys) + .prologue ASM_UNW_PRLG_RP|ASM_UNW_PRLG_PFS, ASM_UNW_PRLG_GRSAVE(2) + alloc loc1=ar.pfs,2,7,8,0 + ld8 r2=[in0],8 // load ESI function's entry point + mov loc0=rp + .body + ;; + ld8 out0=[in1],8 // ESI params loaded from array + ;; // passing all as inputs doesn't work + ld8 out1=[in1],8 + ;; + ld8 out2=[in1],8 + ;; + ld8 out3=[in1],8 + ;; + ld8 out4=[in1],8 + ;; + ld8 out5=[in1],8 + ;; + ld8 out6=[in1],8 + ;; + ld8 out7=[in1] + mov loc2=gp // save global pointer + mov loc4=ar.rsc // save RSE configuration + mov ar.rsc=0 // put RSE in enforced lazy, LE mode + ;; + ld8 gp=[in0] // load ESI function's global pointer + movl r16=PSR_BITS_TO_CLEAR + mov loc3=psr // save processor status word + movl r17=PSR_BITS_TO_SET + ;; + or loc3=loc3,r17 + mov b6=r2 + ;; + andcm r16=loc3,r16 // get psr with IT, DT, and RT bits cleared + br.call.sptk.many rp=ia64_switch_mode_phys +.ret0: mov loc5=r19 // old ar.bsp + mov loc6=r20 // old sp + br.call.sptk.many rp=b6 // call the ESI function +.ret1: mov ar.rsc=0 // put RSE in enforced lazy, LE mode + mov r16=loc3 // save virtual mode psr + mov r19=loc5 // save virtual mode bspstore + mov r20=loc6 // save virtual mode sp + br.call.sptk.many rp=ia64_switch_mode_virt // return to virtual mode +.ret2: mov ar.rsc=loc4 // restore RSE configuration + mov ar.pfs=loc1 + mov rp=loc0 + mov gp=loc2 + br.ret.sptk.many rp +END(esi_call_phys) diff --git a/arch/ia64/kernel/ia64_ksyms.c b/arch/ia64/kernel/ia64_ksyms.c index bbcfd08378a6..9583f310d486 100644 --- a/arch/ia64/kernel/ia64_ksyms.c +++ b/arch/ia64/kernel/ia64_ksyms.c @@ -106,5 +106,9 @@ EXPORT_SYMBOL(ia64_spinlock_contention); # endif #endif +#if defined(CONFIG_IA64_ESI) || defined(CONFIG_IA64_ESI_MODULE) +extern void esi_call_phys (void); +EXPORT_SYMBOL_GPL(esi_call_phys); +#endif extern char ia64_ivt[]; EXPORT_SYMBOL(ia64_ivt); diff --git a/include/asm-ia64/esi.h b/include/asm-ia64/esi.h new file mode 100644 index 000000000000..84aac0e0b583 --- /dev/null +++ b/include/asm-ia64/esi.h @@ -0,0 +1,30 @@ +/* + * ESI service calls. + * + * Copyright (c) Copyright 2005-2006 Hewlett-Packard Development Company, L.P. + * Alex Williamson + */ +#ifndef esi_h +#define esi_h + +#include + +#define ESI_QUERY 0x00000001 +#define ESI_OPEN_HANDLE 0x02000000 +#define ESI_CLOSE_HANDLE 0x02000001 + +enum esi_proc_type { + ESI_PROC_SERIALIZED, /* calls need to be serialized */ + ESI_PROC_MP_SAFE, /* MP-safe, but not reentrant */ + ESI_PROC_REENTRANT /* MP-safe and reentrant */ +}; + +extern int ia64_esi_init (void); +extern struct ia64_sal_retval esi_call_phys (void *, u64 *); +extern int ia64_esi_call(efi_guid_t, struct ia64_sal_retval *, + enum esi_proc_type, + u64, u64, u64, u64, u64, u64, u64, u64); +extern int ia64_esi_call_phys(efi_guid_t, struct ia64_sal_retval *, u64, u64, + u64, u64, u64, u64, u64, u64); + +#endif /* esi_h */ -- cgit v1.2.3 From ddd5d35a8f7c1924049e8b6877b3177c1787e6a3 Mon Sep 17 00:00:00 2001 From: Dmitry Torokhov Date: Thu, 10 Aug 2006 01:18:18 -0400 Subject: class_device_create(): make fmt argument 'const char *' Signed-off-by: Dmitry Torokhov Signed-off-by: Greg Kroah-Hartman --- drivers/base/class.c | 3 ++- include/linux/device.h | 2 +- 2 files changed, 3 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/drivers/base/class.c b/drivers/base/class.c index 46336f1b93b6..75057aaab809 100644 --- a/drivers/base/class.c +++ b/drivers/base/class.c @@ -679,7 +679,8 @@ int class_device_register(struct class_device *class_dev) struct class_device *class_device_create(struct class *cls, struct class_device *parent, dev_t devt, - struct device *device, char *fmt, ...) + struct device *device, + const char *fmt, ...) { va_list args; struct class_device *class_dev = NULL; diff --git a/include/linux/device.h b/include/linux/device.h index 1e5f30da98bc..1fec28546525 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -277,7 +277,7 @@ extern struct class_device *class_device_create(struct class *cls, struct class_device *parent, dev_t devt, struct device *device, - char *fmt, ...) + const char *fmt, ...) __attribute__((format(printf,5,6))); extern void class_device_destroy(struct class *cls, dev_t devt); -- cgit v1.2.3 From 5cbe5f8a5897470698222ac9924429056e57d84c Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Thu, 10 Aug 2006 01:19:19 -0400 Subject: device_create(): make fmt argument 'const char *' Signed-off-by: Greg Kroah-Hartman --- drivers/base/core.c | 2 +- include/linux/device.h | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/drivers/base/core.c b/drivers/base/core.c index 04d089fd4f76..5d4b7e04471e 100644 --- a/drivers/base/core.c +++ b/drivers/base/core.c @@ -583,7 +583,7 @@ static void device_create_release(struct device *dev) * been created with a call to class_create(). */ struct device *device_create(struct class *class, struct device *parent, - dev_t devt, char *fmt, ...) + dev_t devt, const char *fmt, ...) { va_list args; struct device *dev = NULL; diff --git a/include/linux/device.h b/include/linux/device.h index 1fec28546525..8d92013f9ce1 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -384,7 +384,7 @@ extern void device_reprobe(struct device *dev); * Easy functions for dynamically creating devices on the fly */ extern struct device *device_create(struct class *cls, struct device *parent, - dev_t devt, char *fmt, ...) + dev_t devt, const char *fmt, ...) __attribute__((format(printf,4,5))); extern void device_destroy(struct class *cls, dev_t devt); -- cgit v1.2.3 From ab7d7371acc68fa9130b079a9ba879191202035f Mon Sep 17 00:00:00 2001 From: Miguel Ojeda Sandonis Date: Wed, 13 Sep 2006 15:34:05 +0200 Subject: Driver core: add const to class_create Adds const to class_create second parameter, because: struct class { const char * name; /*...*/ } Signed-off-by: Miguel Ojeda Sandonis Signed-off-by: Greg Kroah-Hartman --- drivers/base/class.c | 2 +- include/linux/device.h | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/drivers/base/class.c b/drivers/base/class.c index 75057aaab809..e078bc21d52e 100644 --- a/drivers/base/class.c +++ b/drivers/base/class.c @@ -197,7 +197,7 @@ static int class_device_create_uevent(struct class_device *class_dev, * 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, char *name) +struct class *class_create(struct module *owner, const char *name) { struct class *cls; int retval; diff --git a/include/linux/device.h b/include/linux/device.h index 8d92013f9ce1..8a648cd94fa9 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -271,7 +271,7 @@ struct class_interface { extern int class_interface_register(struct class_interface *); extern void class_interface_unregister(struct class_interface *); -extern struct class *class_create(struct module *owner, char *name); +extern struct class *class_create(struct module *owner, const char *name); extern void class_destroy(struct class *cls); extern struct class_device *class_device_create(struct class *cls, struct class_device *parent, -- cgit v1.2.3 From 7c8265f51073bc8632a99de78d5fd19117ed78b7 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 24 Jun 2006 14:50:29 -0700 Subject: Suspend infrastructure cleanup and extension Allow devices to participate in the suspend process more intimately, in particular, allow the final phase (with interrupts disabled) to also be open to normal devices, not just system devices. Also, allow classes to participate in device suspend. Signed-off-by: Linus Torvalds Signed-off-by: Greg Kroah-Hartman --- drivers/base/power/resume.c | 28 ++++++++-- drivers/base/power/suspend.c | 122 ++++++++++++++++++++++++++++++++----------- include/linux/device.h | 11 +++- include/linux/pm.h | 1 + kernel/power/main.c | 4 ++ 5 files changed, 130 insertions(+), 36 deletions(-) (limited to 'include') diff --git a/drivers/base/power/resume.c b/drivers/base/power/resume.c index 826093ef4c7e..48e3d49d7b65 100644 --- a/drivers/base/power/resume.c +++ b/drivers/base/power/resume.c @@ -38,13 +38,35 @@ int resume_device(struct device * dev) dev_dbg(dev,"resuming\n"); error = dev->bus->resume(dev); } + if (dev->class && dev->class->resume) { + dev_dbg(dev,"class resume\n"); + error = dev->class->resume(dev); + } up(&dev->sem); TRACE_RESUME(error); return error; } +static int resume_device_early(struct device * dev) +{ + int error = 0; + TRACE_DEVICE(dev); + TRACE_RESUME(0); + if (dev->bus && dev->bus->resume_early) { + dev_dbg(dev,"EARLY resume\n"); + error = dev->bus->resume_early(dev); + } + TRACE_RESUME(error); + return error; +} + +/* + * Resume the devices that have either not gone through + * the late suspend, or that did go through it but also + * went through the early resume + */ void dpm_resume(void) { down(&dpm_list_sem); @@ -99,10 +121,8 @@ void dpm_power_up(void) struct list_head * entry = dpm_off_irq.next; struct device * dev = to_device(entry); - get_device(dev); - list_move_tail(entry, &dpm_active); - resume_device(dev); - put_device(dev); + list_move_tail(entry, &dpm_off); + resume_device_early(dev); } } diff --git a/drivers/base/power/suspend.c b/drivers/base/power/suspend.c index 69509e02f703..10e8032aee1a 100644 --- a/drivers/base/power/suspend.c +++ b/drivers/base/power/suspend.c @@ -65,7 +65,19 @@ int suspend_device(struct device * dev, pm_message_t state) dev->power.prev_state = dev->power.power_state; - if (dev->bus && dev->bus->suspend && !dev->power.power_state.event) { + if (dev->class && dev->class->suspend && !dev->power.power_state.event) { + dev_dbg(dev, "class %s%s\n", + suspend_verb(state.event), + ((state.event == PM_EVENT_SUSPEND) + && device_may_wakeup(dev)) + ? ", may wakeup" + : "" + ); + error = dev->class->suspend(dev, state); + suspend_report_result(dev->class->suspend, error); + } + + if (!error && dev->bus && dev->bus->suspend && !dev->power.power_state.event) { dev_dbg(dev, "%s%s\n", suspend_verb(state.event), ((state.event == PM_EVENT_SUSPEND) @@ -81,15 +93,74 @@ int suspend_device(struct device * dev, pm_message_t state) } +/* + * This is called with interrupts off, only a single CPU + * running. We can't do down() on a semaphore (and we don't + * need the protection) + */ +static int suspend_device_late(struct device *dev, pm_message_t state) +{ + int error = 0; + + if (dev->power.power_state.event) { + dev_dbg(dev, "PM: suspend_late %d-->%d\n", + dev->power.power_state.event, state.event); + } + + if (dev->bus && dev->bus->suspend_late && !dev->power.power_state.event) { + dev_dbg(dev, "LATE %s%s\n", + suspend_verb(state.event), + ((state.event == PM_EVENT_SUSPEND) + && device_may_wakeup(dev)) + ? ", may wakeup" + : "" + ); + error = dev->bus->suspend_late(dev, state); + suspend_report_result(dev->bus->suspend_late, error); + } + return error; +} + +/** + * device_prepare_suspend - save state and prepare to suspend + * + * NOTE! Devices cannot detach at this point - not only do we + * hold the device list semaphores over the whole prepare, but + * the whole point is to do non-invasive preparatory work, not + * the actual suspend. + */ +int device_prepare_suspend(pm_message_t state) +{ + int error = 0; + struct device * dev; + + down(&dpm_sem); + down(&dpm_list_sem); + list_for_each_entry_reverse(dev, &dpm_active, power.entry) { + if (!dev->bus || !dev->bus->suspend_prepare) + continue; + error = dev->bus->suspend_prepare(dev, state); + if (error) + break; + } + up(&dpm_list_sem); + up(&dpm_sem); + return error; +} + /** * device_suspend - Save state and stop all devices in system. * @state: Power state to put each device in. * * Walk the dpm_active list, call ->suspend() for each device, and move - * it to dpm_off. - * Check the return value for each. If it returns 0, then we move the - * the device to the dpm_off list. If it returns -EAGAIN, we move it to - * the dpm_off_irq list. If we get a different error, try and back out. + * it to the dpm_off list. + * + * (For historical reasons, if it returns -EAGAIN, that used to mean + * that the device would be called again with interrupts disabled. + * These days, we use the "suspend_late()" callback for that, so we + * print a warning and consider it an error). + * + * If we get a different error, try and back out. * * If we hit a failure with any of the devices, call device_resume() * above to bring the suspended devices back to life. @@ -115,39 +186,27 @@ int device_suspend(pm_message_t state) /* Check if the device got removed */ if (!list_empty(&dev->power.entry)) { - /* Move it to the dpm_off or dpm_off_irq list */ + /* Move it to the dpm_off list */ if (!error) list_move(&dev->power.entry, &dpm_off); - else if (error == -EAGAIN) { - list_move(&dev->power.entry, &dpm_off_irq); - error = 0; - } } if (error) printk(KERN_ERR "Could not suspend device %s: " - "error %d\n", kobject_name(&dev->kobj), error); + "error %d%s\n", + kobject_name(&dev->kobj), error, + error == -EAGAIN ? " (please convert to suspend_late)" : ""); put_device(dev); } up(&dpm_list_sem); - if (error) { - /* we failed... before resuming, bring back devices from - * dpm_off_irq list back to main dpm_off list, we do want - * to call resume() on them, in case they partially suspended - * despite returning -EAGAIN - */ - while (!list_empty(&dpm_off_irq)) { - struct list_head * entry = dpm_off_irq.next; - list_move(entry, &dpm_off); - } + if (error) dpm_resume(); - } + up(&dpm_sem); return error; } EXPORT_SYMBOL_GPL(device_suspend); - /** * device_power_down - Shut down special devices. * @state: Power state to enter. @@ -162,14 +221,17 @@ int device_power_down(pm_message_t state) int error = 0; struct device * dev; - list_for_each_entry_reverse(dev, &dpm_off_irq, power.entry) { - if ((error = suspend_device(dev, state))) - break; + while (!list_empty(&dpm_off)) { + struct list_head * entry = dpm_off.prev; + + dev = to_device(entry); + error = suspend_device_late(dev, state); + if (error) + goto Error; + list_move(&dev->power.entry, &dpm_off_irq); } - if (error) - goto Error; - if ((error = sysdev_suspend(state))) - goto Error; + + error = sysdev_suspend(state); Done: return error; Error: diff --git a/include/linux/device.h b/include/linux/device.h index 8a648cd94fa9..b40be6fca6fa 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -51,8 +51,12 @@ struct bus_type { int (*probe)(struct device * dev); int (*remove)(struct device * dev); void (*shutdown)(struct device * dev); - int (*suspend)(struct device * dev, pm_message_t state); - int (*resume)(struct device * dev); + + int (*suspend_prepare)(struct device * dev, pm_message_t state); + int (*suspend)(struct device * dev, pm_message_t state); + int (*suspend_late)(struct device * dev, pm_message_t state); + int (*resume_early)(struct device * dev); + int (*resume)(struct device * dev); }; extern int bus_register(struct bus_type * bus); @@ -154,6 +158,9 @@ struct class { void (*release)(struct class_device *dev); void (*class_release)(struct class *class); + + int (*suspend)(struct device *, pm_message_t state); + int (*resume)(struct device *); }; extern int class_register(struct class *); diff --git a/include/linux/pm.h b/include/linux/pm.h index 658c1b93d5bb..096fb6f754cf 100644 --- a/include/linux/pm.h +++ b/include/linux/pm.h @@ -190,6 +190,7 @@ extern void device_resume(void); extern suspend_disk_method_t pm_disk_mode; extern int device_suspend(pm_message_t state); +extern int device_prepare_suspend(pm_message_t state); #define device_set_wakeup_enable(dev,val) \ ((dev)->power.should_wakeup = !!(val)) diff --git a/kernel/power/main.c b/kernel/power/main.c index 6d295c776794..0c3ed6ac938e 100644 --- a/kernel/power/main.c +++ b/kernel/power/main.c @@ -57,6 +57,10 @@ static int suspend_prepare(suspend_state_t state) if (!pm_ops || !pm_ops->enter) return -EPERM; + error = device_prepare_suspend(PMSG_SUSPEND); + if (error) + return error; + pm_prepare_console(); disable_nonboot_cpus(); -- cgit v1.2.3 From cbd69dbbf1adfce6e048f15afc8629901ca9dae5 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 24 Jun 2006 14:50:29 -0700 Subject: Suspend changes for PCI core Changes the PCI core to use the new suspend infrastructure changes. Signed-off-by: Linus Torvalds Signed-off-by: Greg Kroah-Hartman --- drivers/pci/pci-driver.c | 41 ++++++++++++++++++++++++++++++++++++++++- include/linux/pci.h | 3 +++ 2 files changed, 43 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c index 474e9cd0e9e4..9e7d6ceb3805 100644 --- a/drivers/pci/pci-driver.c +++ b/drivers/pci/pci-driver.c @@ -264,6 +264,19 @@ static int pci_device_remove(struct device * dev) return 0; } +static int pci_device_suspend_prepare(struct device * dev, pm_message_t state) +{ + struct pci_dev * pci_dev = to_pci_dev(dev); + struct pci_driver * drv = pci_dev->driver; + int i = 0; + + if (drv && drv->suspend_prepare) { + i = drv->suspend_prepare(pci_dev, state); + suspend_report_result(drv->suspend_prepare, i); + } + return i; +} + static int pci_device_suspend(struct device * dev, pm_message_t state) { struct pci_dev * pci_dev = to_pci_dev(dev); @@ -279,6 +292,18 @@ static int pci_device_suspend(struct device * dev, pm_message_t state) return i; } +static int pci_device_suspend_late(struct device * dev, pm_message_t state) +{ + struct pci_dev * pci_dev = to_pci_dev(dev); + struct pci_driver * drv = pci_dev->driver; + int i = 0; + + if (drv && drv->suspend_late) { + i = drv->suspend_late(pci_dev, state); + suspend_report_result(drv->suspend_late, i); + } + return i; +} /* * Default resume method for devices that have no driver provided resume, @@ -313,6 +338,17 @@ static int pci_device_resume(struct device * dev) return error; } +static int pci_device_resume_early(struct device * dev) +{ + int error = 0; + struct pci_dev * pci_dev = to_pci_dev(dev); + struct pci_driver * drv = pci_dev->driver; + + if (drv && drv->resume_early) + error = drv->resume_early(pci_dev); + return error; +} + static void pci_device_shutdown(struct device *dev) { struct pci_dev *pci_dev = to_pci_dev(dev); @@ -508,9 +544,12 @@ struct bus_type pci_bus_type = { .uevent = pci_uevent, .probe = pci_device_probe, .remove = pci_device_remove, + .suspend_prepare= pci_device_suspend_prepare, .suspend = pci_device_suspend, - .shutdown = pci_device_shutdown, + .suspend_late = pci_device_suspend_late, + .resume_early = pci_device_resume_early, .resume = pci_device_resume, + .shutdown = pci_device_shutdown, .dev_attrs = pci_dev_attrs, }; diff --git a/include/linux/pci.h b/include/linux/pci.h index 8565b81d7fbc..4b2e629467c7 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -345,7 +345,10 @@ struct pci_driver { const struct pci_device_id *id_table; /* must be non-NULL for probe to be called */ int (*probe) (struct pci_dev *dev, const struct pci_device_id *id); /* New device inserted */ void (*remove) (struct pci_dev *dev); /* Device removed (NULL if not a hot-plug capable driver) */ + int (*suspend_prepare) (struct pci_dev *dev, pm_message_t state); int (*suspend) (struct pci_dev *dev, pm_message_t state); /* Device suspended */ + int (*suspend_late) (struct pci_dev *dev, pm_message_t state); + int (*resume_early) (struct pci_dev *dev); int (*resume) (struct pci_dev *dev); /* Device woken up */ int (*enable_wake) (struct pci_dev *dev, pci_power_t state, int enable); /* Enable wake event */ void (*shutdown) (struct pci_dev *dev); -- cgit v1.2.3 From 82bb67f2c1f9ef438c56ac24e7dca027fe7289b5 Mon Sep 17 00:00:00 2001 From: David Brownell Date: Mon, 14 Aug 2006 23:11:04 -0700 Subject: PM: define PM_EVENT_PRETHAW This adds a new pm_message_t event type to use when preparing to restore a swsusp snapshot. Devices that have been initialized by Linux after resume (rather than left in power-up-reset state) may need to be reset; this new event type give drivers the chance to do that. The drivers that will care about this are those which understand more hardware states than just "on" and "reset", relying on hardware state during resume() methods to be either the state left by the preceding suspend(), or a power-lost reset. The best current example of this class of drivers are USB host controller drivers, which currently do not work through swsusp when they're statically linked. When the swsusp freeze/thaw mechanism kicks in, a troublesome third state could exist: one state set up by a different kernel instance, before a snapshot image is resumed. This mechanism lets drivers prevent that state. Signed-off-by: David Brownell Cc: "Rafael J. Wysocki" Cc: Pavel Machek Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- include/linux/pm.h | 62 +++++++++++++++++++++++++++++++++++++++++------------- 1 file changed, 47 insertions(+), 15 deletions(-) (limited to 'include') diff --git a/include/linux/pm.h b/include/linux/pm.h index 096fb6f754cf..6b27e07aef19 100644 --- a/include/linux/pm.h +++ b/include/linux/pm.h @@ -142,29 +142,61 @@ typedef struct pm_message { } pm_message_t; /* - * There are 4 important states driver can be in: - * ON -- driver is working - * FREEZE -- stop operations and apply whatever policy is applicable to a - * suspended driver of that class, freeze queues for block like IDE - * does, drop packets for ethernet, etc... stop DMA engine too etc... - * so a consistent image can be saved; but do not power any hardware - * down. - * SUSPEND - like FREEZE, but hardware is doing as much powersaving as - * possible. Roughly pci D3. + * Several driver power state transitions are externally visible, affecting + * the state of pending I/O queues and (for drivers that touch hardware) + * interrupts, wakeups, DMA, and other hardware state. There may also be + * internal transitions to various low power modes, which are transparent + * to the rest of the driver stack (such as a driver that's ON gating off + * clocks which are not in active use). * - * Unfortunately, current drivers only recognize numeric values 0 (ON) and 3 - * (SUSPEND). We'll need to fix the drivers. So yes, putting 3 to all different - * defines is intentional, and will go away as soon as drivers are fixed. Also - * note that typedef is neccessary, we'll probably want to switch to - * typedef struct pm_message_t { int event; int flags; } pm_message_t - * or something similar soon. + * One transition is triggered by resume(), after a suspend() call; the + * message is implicit: + * + * ON Driver starts working again, responding to hardware events + * and software requests. The hardware may have gone through + * a power-off reset, or it may have maintained state from the + * previous suspend() which the driver will rely on while + * resuming. On most platforms, there are no restrictions on + * availability of resources like clocks during resume(). + * + * Other transitions are triggered by messages sent using suspend(). All + * these transitions quiesce the driver, so that I/O queues are inactive. + * That commonly entails turning off IRQs and DMA; there may be rules + * about how to quiesce that are specific to the bus or the device's type. + * (For example, network drivers mark the link state.) Other details may + * differ according to the message: + * + * SUSPEND Quiesce, enter a low power device state appropriate for + * the upcoming system state (such as PCI_D3hot), and enable + * wakeup events as appropriate. + * + * FREEZE Quiesce operations so that a consistent image can be saved; + * but do NOT otherwise enter a low power device state, and do + * NOT emit system wakeup events. + * + * PRETHAW Quiesce as if for FREEZE; additionally, prepare for restoring + * the system from a snapshot taken after an earlier FREEZE. + * Some drivers will need to reset their hardware state instead + * of preserving it, to ensure that it's never mistaken for the + * state which that earlier snapshot had set up. + * + * A minimally power-aware driver treats all messages as SUSPEND, fully + * reinitializes its device during resume() -- whether or not it was reset + * during the suspend/resume cycle -- and can't issue wakeup events. + * + * More power-aware drivers may also use low power states at runtime as + * well as during system sleep states like PM_SUSPEND_STANDBY. They may + * be able to use wakeup events to exit from runtime low-power states, + * or from system low-power states such as standby or suspend-to-RAM. */ #define PM_EVENT_ON 0 #define PM_EVENT_FREEZE 1 #define PM_EVENT_SUSPEND 2 +#define PM_EVENT_PRETHAW 3 #define PMSG_FREEZE ((struct pm_message){ .event = PM_EVENT_FREEZE, }) +#define PMSG_PRETHAW ((struct pm_message){ .event = PM_EVENT_PRETHAW, }) #define PMSG_SUSPEND ((struct pm_message){ .event = PM_EVENT_SUSPEND, }) #define PMSG_ON ((struct pm_message){ .event = PM_EVENT_ON, }) -- cgit v1.2.3 From 1d3a82af45428c5e8deaa119cdeb79611ae46371 Mon Sep 17 00:00:00 2001 From: David Brownell Date: Wed, 30 Aug 2006 14:09:47 -0700 Subject: PM: no suspend_prepare() phase Remove the new suspend_prepare() phase. It doesn't seem very usable, has never been tested, doesn't address fault cleanup, and would need a sibling resume_complete(); plus there are no real use cases. It could be restored later if those issues get resolved. Signed-off-by: David Brownell Cc: Linus Torvalds Signed-off-by: Greg Kroah-Hartman --- drivers/base/power/suspend.c | 27 --------------------------- drivers/pci/pci-driver.c | 14 -------------- include/linux/device.h | 1 - include/linux/pci.h | 1 - kernel/power/main.c | 4 ---- 5 files changed, 47 deletions(-) (limited to 'include') diff --git a/drivers/base/power/suspend.c b/drivers/base/power/suspend.c index e86db83746ac..6453c25103d2 100644 --- a/drivers/base/power/suspend.c +++ b/drivers/base/power/suspend.c @@ -117,33 +117,6 @@ static int suspend_device_late(struct device *dev, pm_message_t state) return error; } -/** - * device_prepare_suspend - save state and prepare to suspend - * - * NOTE! Devices cannot detach at this point - not only do we - * hold the device list semaphores over the whole prepare, but - * the whole point is to do non-invasive preparatory work, not - * the actual suspend. - */ -int device_prepare_suspend(pm_message_t state) -{ - int error = 0; - struct device * dev; - - down(&dpm_sem); - down(&dpm_list_sem); - list_for_each_entry_reverse(dev, &dpm_active, power.entry) { - if (!dev->bus || !dev->bus->suspend_prepare) - continue; - error = dev->bus->suspend_prepare(dev, state); - if (error) - break; - } - up(&dpm_list_sem); - up(&dpm_sem); - return error; -} - /** * device_suspend - Save state and stop all devices in system. * @state: Power state to put each device in. diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c index 9e7d6ceb3805..8948ac9ab681 100644 --- a/drivers/pci/pci-driver.c +++ b/drivers/pci/pci-driver.c @@ -264,19 +264,6 @@ static int pci_device_remove(struct device * dev) return 0; } -static int pci_device_suspend_prepare(struct device * dev, pm_message_t state) -{ - struct pci_dev * pci_dev = to_pci_dev(dev); - struct pci_driver * drv = pci_dev->driver; - int i = 0; - - if (drv && drv->suspend_prepare) { - i = drv->suspend_prepare(pci_dev, state); - suspend_report_result(drv->suspend_prepare, i); - } - return i; -} - static int pci_device_suspend(struct device * dev, pm_message_t state) { struct pci_dev * pci_dev = to_pci_dev(dev); @@ -544,7 +531,6 @@ struct bus_type pci_bus_type = { .uevent = pci_uevent, .probe = pci_device_probe, .remove = pci_device_remove, - .suspend_prepare= pci_device_suspend_prepare, .suspend = pci_device_suspend, .suspend_late = pci_device_suspend_late, .resume_early = pci_device_resume_early, diff --git a/include/linux/device.h b/include/linux/device.h index b40be6fca6fa..b3646462d6dc 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -52,7 +52,6 @@ struct bus_type { int (*remove)(struct device * dev); void (*shutdown)(struct device * dev); - int (*suspend_prepare)(struct device * dev, pm_message_t state); int (*suspend)(struct device * dev, pm_message_t state); int (*suspend_late)(struct device * dev, pm_message_t state); int (*resume_early)(struct device * dev); diff --git a/include/linux/pci.h b/include/linux/pci.h index 4b2e629467c7..9514bbfe96e2 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -345,7 +345,6 @@ struct pci_driver { const struct pci_device_id *id_table; /* must be non-NULL for probe to be called */ int (*probe) (struct pci_dev *dev, const struct pci_device_id *id); /* New device inserted */ void (*remove) (struct pci_dev *dev); /* Device removed (NULL if not a hot-plug capable driver) */ - int (*suspend_prepare) (struct pci_dev *dev, pm_message_t state); int (*suspend) (struct pci_dev *dev, pm_message_t state); /* Device suspended */ int (*suspend_late) (struct pci_dev *dev, pm_message_t state); int (*resume_early) (struct pci_dev *dev); diff --git a/kernel/power/main.c b/kernel/power/main.c index 0c3ed6ac938e..6d295c776794 100644 --- a/kernel/power/main.c +++ b/kernel/power/main.c @@ -57,10 +57,6 @@ static int suspend_prepare(suspend_state_t state) if (!pm_ops || !pm_ops->enter) return -EPERM; - error = device_prepare_suspend(PMSG_SUSPEND); - if (error) - return error; - pm_prepare_console(); disable_nonboot_cpus(); -- cgit v1.2.3 From 386415d88b1ae50304f9c61aa3e0db082fa90428 Mon Sep 17 00:00:00 2001 From: David Brownell Date: Sun, 3 Sep 2006 13:16:45 -0700 Subject: PM: platform_bus and late_suspend/early_resume Teach platform_bus about the new suspend_late/resume_early PM calls, issued with IRQs off. Do we really need sysdev and friends any more, or can janitors start switching its users over to platform_device so we can do a minor code-ectomy? Signed-off-by: David Brownell Signed-off-by: Greg Kroah-Hartman --- drivers/base/platform.c | 30 ++++++++++++++++++++++++++++-- include/linux/platform_device.h | 2 ++ 2 files changed, 30 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/drivers/base/platform.c b/drivers/base/platform.c index 2b8755db76c6..940ce41f1887 100644 --- a/drivers/base/platform.c +++ b/drivers/base/platform.c @@ -505,12 +505,36 @@ static int platform_match(struct device * dev, struct device_driver * drv) return (strncmp(pdev->name, drv->name, BUS_ID_SIZE) == 0); } -static int platform_suspend(struct device * dev, pm_message_t state) +static int platform_suspend(struct device *dev, pm_message_t mesg) { int ret = 0; if (dev->driver && dev->driver->suspend) - ret = dev->driver->suspend(dev, state); + ret = dev->driver->suspend(dev, mesg); + + return ret; +} + +static int platform_suspend_late(struct device *dev, pm_message_t mesg) +{ + struct platform_driver *drv = to_platform_driver(dev->driver); + struct platform_device *pdev = container_of(dev, struct platform_device, dev); + int ret = 0; + + if (dev->driver && drv->suspend_late) + ret = drv->suspend_late(pdev, mesg); + + return ret; +} + +static int platform_resume_early(struct device *dev) +{ + struct platform_driver *drv = to_platform_driver(dev->driver); + struct platform_device *pdev = container_of(dev, struct platform_device, dev); + int ret = 0; + + if (dev->driver && drv->resume_early) + ret = drv->resume_early(pdev); return ret; } @@ -531,6 +555,8 @@ struct bus_type platform_bus_type = { .match = platform_match, .uevent = platform_uevent, .suspend = platform_suspend, + .suspend_late = platform_suspend_late, + .resume_early = platform_resume_early, .resume = platform_resume, }; EXPORT_SYMBOL_GPL(platform_bus_type); diff --git a/include/linux/platform_device.h b/include/linux/platform_device.h index 782090c68932..29cd6dee13db 100644 --- a/include/linux/platform_device.h +++ b/include/linux/platform_device.h @@ -49,6 +49,8 @@ struct platform_driver { int (*remove)(struct platform_device *); void (*shutdown)(struct platform_device *); int (*suspend)(struct platform_device *, pm_message_t state); + int (*suspend_late)(struct platform_device *, pm_message_t state); + int (*resume_early)(struct platform_device *); int (*resume)(struct platform_device *); struct device_driver driver; }; -- cgit v1.2.3 From de0ff00d723fd821d372496e2c084805644aa5e1 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Tue, 27 Jun 2006 00:06:09 -0700 Subject: Driver core: add groups support to struct device This is needed for the network class devices in order to be able to convert over to use struct device. Signed-off-by: Greg Kroah-Hartman --- drivers/base/core.c | 34 ++++++++++++++++++++++++++++++++++ include/linux/device.h | 1 + 2 files changed, 35 insertions(+) (limited to 'include') diff --git a/drivers/base/core.c b/drivers/base/core.c index 5d4b7e04471e..641c0c42bb48 100644 --- a/drivers/base/core.c +++ b/drivers/base/core.c @@ -197,6 +197,35 @@ static ssize_t store_uevent(struct device *dev, struct device_attribute *attr, return count; } +static int device_add_groups(struct device *dev) +{ + int i; + int error = 0; + + if (dev->groups) { + for (i = 0; dev->groups[i]; i++) { + error = sysfs_create_group(&dev->kobj, dev->groups[i]); + if (error) { + while (--i >= 0) + sysfs_remove_group(&dev->kobj, dev->groups[i]); + goto out; + } + } + } +out: + return error; +} + +static void device_remove_groups(struct device *dev) +{ + int i; + if (dev->groups) { + for (i = 0; dev->groups[i]; i++) { + sysfs_remove_group(&dev->kobj, dev->groups[i]); + } + } +} + static ssize_t show_dev(struct device *dev, struct device_attribute *attr, char *buf) { @@ -350,6 +379,8 @@ int device_add(struct device *dev) sysfs_create_link(&dev->parent->kobj, &dev->kobj, class_name); } + if ((error = device_add_groups(dev))) + goto GroupError; if ((error = device_pm_add(dev))) goto PMError; if ((error = bus_add_device(dev))) @@ -376,6 +407,8 @@ int device_add(struct device *dev) BusError: device_pm_remove(dev); PMError: + device_remove_groups(dev); + GroupError: if (dev->devt_attr) { device_remove_file(dev, dev->devt_attr); kfree(dev->devt_attr); @@ -470,6 +503,7 @@ void device_del(struct device * dev) up(&dev->class->sem); } device_remove_file(dev, &dev->uevent_attr); + device_remove_groups(dev); /* Notify the platform of the removal, in case they * need to do anything... diff --git a/include/linux/device.h b/include/linux/device.h index b3646462d6dc..994d3ebd53f4 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -344,6 +344,7 @@ struct device { struct list_head node; struct class *class; /* optional*/ dev_t devt; /* dev_t, creates the sysfs "dev" */ + struct attribute_group **groups; /* optional groups */ void (*release)(struct device * dev); }; -- cgit v1.2.3 From 2620efef7029bb040430f50f0fc148f2d5e002ad Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Wed, 28 Jun 2006 16:19:58 -0700 Subject: Driver core: add ability for classes to handle devices properly This adds two new callbacks to the class structure: int (*dev_uevent)(struct device *dev, char **envp, int num_envp, char *buffer, int buffer_size); void (*dev_release)(struct device *dev); And one pointer: struct device_attribute * dev_attrs; which all corrispond with the same thing as the "normal" class devices do, yet this is for when a struct device is bound to a class. Someday soon, struct class_device will go away, and then the other fields in this structure can be removed too. But this is necessary in order to get the transition to work properly. Tested out on a network core patch that converted it to use struct device instead of struct class_device. Signed-off-by: Greg Kroah-Hartman --- drivers/base/core.c | 53 ++++++++++++++++++++++++++++++++++++++++++++++++++ include/linux/device.h | 4 ++++ 2 files changed, 57 insertions(+) (limited to 'include') diff --git a/drivers/base/core.c b/drivers/base/core.c index 5c91d0d81e78..f1228f25efe0 100644 --- a/drivers/base/core.c +++ b/drivers/base/core.c @@ -94,6 +94,8 @@ static void device_release(struct kobject * kobj) if (dev->release) dev->release(dev); + else if (dev->class && dev->class->dev_release) + dev->class->dev_release(dev); else { printk(KERN_ERR "Device '%s' does not have a release() function, " "it is broken and must be fixed.\n", @@ -183,6 +185,15 @@ static int dev_uevent(struct kset *kset, struct kobject *kobj, char **envp, } } + if (dev->class && dev->class->dev_uevent) { + /* have the class specific function add its stuff */ + retval = dev->class->dev_uevent(dev, envp, num_envp, buffer, buffer_size); + if (retval) { + pr_debug("%s - dev_uevent() returned %d\n", + __FUNCTION__, retval); + } + } + return retval; } @@ -228,6 +239,43 @@ static void device_remove_groups(struct device *dev) } } +static int device_add_attrs(struct device *dev) +{ + struct class *class = dev->class; + int error = 0; + int i; + + if (!class) + return 0; + + if (class->dev_attrs) { + for (i = 0; attr_name(class->dev_attrs[i]); i++) { + error = device_create_file(dev, &class->dev_attrs[i]); + if (error) + break; + } + } + if (error) + while (--i >= 0) + device_remove_file(dev, &class->dev_attrs[i]); + return error; +} + +static void device_remove_attrs(struct device *dev) +{ + struct class *class = dev->class; + int i; + + if (!class) + return; + + if (class->dev_attrs) { + for (i = 0; attr_name(class->dev_attrs[i]); i++) + device_remove_file(dev, &class->dev_attrs[i]); + } +} + + static ssize_t show_dev(struct device *dev, struct device_attribute *attr, char *buf) { @@ -382,6 +430,8 @@ int device_add(struct device *dev) } } + if ((error = device_add_attrs(dev))) + goto AttrsError; if ((error = device_add_groups(dev))) goto GroupError; if ((error = device_pm_add(dev))) @@ -412,6 +462,8 @@ int device_add(struct device *dev) PMError: device_remove_groups(dev); GroupError: + device_remove_attrs(dev); + AttrsError: if (dev->devt_attr) { device_remove_file(dev, dev->devt_attr); kfree(dev->devt_attr); @@ -509,6 +561,7 @@ void device_del(struct device * dev) } device_remove_file(dev, &dev->uevent_attr); device_remove_groups(dev); + device_remove_attrs(dev); /* Notify the platform of the removal, in case they * need to do anything... diff --git a/include/linux/device.h b/include/linux/device.h index 994d3ebd53f4..3122bd25ce42 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -151,12 +151,16 @@ struct class { struct class_attribute * class_attrs; struct class_device_attribute * class_dev_attrs; + struct device_attribute * dev_attrs; int (*uevent)(struct class_device *dev, char **envp, int num_envp, char *buffer, int buffer_size); + int (*dev_uevent)(struct device *dev, char **envp, int num_envp, + char *buffer, int buffer_size); void (*release)(struct class_device *dev); void (*class_release)(struct class *class); + void (*dev_release)(struct device *dev); int (*suspend)(struct device *, pm_message_t state); int (*resume)(struct device *); -- cgit v1.2.3 From a2de48cace5d0993da6cfa28b276ae724dc3569b Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Mon, 3 Jul 2006 14:31:12 -0700 Subject: Driver core: add device_rename function The network layer needs this to convert to using struct device instead of a struct class_device. Signed-off-by: Greg Kroah-Hartman --- drivers/base/core.c | 55 ++++++++++++++++++++++++++++++++++++++++++++++++++ include/linux/device.h | 1 + 2 files changed, 56 insertions(+) (limited to 'include') diff --git a/drivers/base/core.c b/drivers/base/core.c index f1228f25efe0..0db47561331e 100644 --- a/drivers/base/core.c +++ b/drivers/base/core.c @@ -736,3 +736,58 @@ void device_destroy(struct class *class, dev_t devt) device_unregister(dev); } EXPORT_SYMBOL_GPL(device_destroy); + +/** + * device_rename - renames a device + * @dev: the pointer to the struct device to be renamed + * @new_name: the new name of the device + */ +int device_rename(struct device *dev, char *new_name) +{ + char *old_class_name = NULL; + char *new_class_name = NULL; + char *old_symlink_name = NULL; + int error; + + dev = get_device(dev); + if (!dev) + return -EINVAL; + + pr_debug("DEVICE: renaming '%s' to '%s'\n", dev->bus_id, new_name); + + if ((dev->class) && (dev->parent)) + old_class_name = make_class_name(dev->class->name, &dev->kobj); + + if (dev->class) { + old_symlink_name = kmalloc(BUS_ID_SIZE, GFP_KERNEL); + if (!old_symlink_name) + return -ENOMEM; + strlcpy(old_symlink_name, dev->bus_id, BUS_ID_SIZE); + } + + strlcpy(dev->bus_id, new_name, BUS_ID_SIZE); + + error = kobject_rename(&dev->kobj, new_name); + + if (old_class_name) { + new_class_name = make_class_name(dev->class->name, &dev->kobj); + if (new_class_name) { + sysfs_create_link(&dev->parent->kobj, &dev->kobj, + new_class_name); + sysfs_remove_link(&dev->parent->kobj, old_class_name); + } + } + if (dev->class) { + sysfs_remove_link(&dev->class->subsys.kset.kobj, + old_symlink_name); + sysfs_create_link(&dev->class->subsys.kset.kobj, &dev->kobj, + dev->bus_id); + } + put_device(dev); + + kfree(old_class_name); + kfree(new_class_name); + kfree(old_symlink_name); + + return error; +} diff --git a/include/linux/device.h b/include/linux/device.h index 3122bd25ce42..3400e09bf458 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -380,6 +380,7 @@ extern int device_add(struct device * dev); extern void device_del(struct device * dev); extern int device_for_each_child(struct device *, void *, int (*fn)(struct device *, void *)); +extern int device_rename(struct device *dev, char *new_name); /* * Manual binding of a device to driver. See drivers/base/bus.c -- cgit v1.2.3 From c205ef4880273d2de4ee5388d4e52227ff688cc4 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Mon, 7 Aug 2006 22:19:37 -0700 Subject: Driver core: create devices/virtual/ tree This change creates a devices/virtual/CLASS_NAME tree for struct devices that belong to a class, yet do not have a "real" struct device for a parent. It automatically creates the directories on the fly as needed. Cc: Kay Sievers Signed-off-by: Greg Kroah-Hartman --- drivers/base/class.c | 17 +++++++++++++++++ drivers/base/core.c | 7 +++++++ include/linux/device.h | 5 ++++- 3 files changed, 28 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/drivers/base/class.c b/drivers/base/class.c index e078bc21d52e..cbdf47c0c60d 100644 --- a/drivers/base/class.c +++ b/drivers/base/class.c @@ -19,6 +19,8 @@ #include #include "base.h" +extern struct subsystem devices_subsys; + #define to_class_attr(_attr) container_of(_attr, struct class_attribute, attr) #define to_class(obj) container_of(obj, struct class, subsys.kset.kobj) @@ -878,7 +880,22 @@ void class_interface_unregister(struct class_interface *class_intf) class_put(parent); } +int virtual_device_parent(struct device *dev) +{ + if (!dev->class) + return -ENODEV; + + if (!dev->class->virtual_dir) { + static struct kobject *virtual_dir = NULL; + if (!virtual_dir) + virtual_dir = kobject_add_dir(&devices_subsys.kset.kobj, "virtual"); + dev->class->virtual_dir = kobject_add_dir(virtual_dir, dev->class->name); + } + + dev->kobj.parent = dev->class->virtual_dir; + return 0; +} int __init classes_init(void) { diff --git a/drivers/base/core.c b/drivers/base/core.c index 0db47561331e..e21a65fc043e 100644 --- a/drivers/base/core.c +++ b/drivers/base/core.c @@ -378,6 +378,13 @@ int device_add(struct device *dev) if (!dev || !strlen(dev->bus_id)) goto Error; + /* if this is a class device, and has no parent, create one */ + if ((dev->class) && (dev->parent == NULL)) { + error = virtual_device_parent(dev); + if (error) + goto Error; + } + parent = get_device(dev->parent); pr_debug("DEV: registering device: ID = '%s'\n", dev->bus_id); diff --git a/include/linux/device.h b/include/linux/device.h index 3400e09bf458..bbb0d6b5d232 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -149,6 +149,8 @@ struct class { struct list_head interfaces; struct semaphore sem; /* locks both the children and interfaces lists */ + struct kobject *virtual_dir; + struct class_attribute * class_attrs; struct class_device_attribute * class_dev_attrs; struct device_attribute * dev_attrs; @@ -291,7 +293,6 @@ extern struct class_device *class_device_create(struct class *cls, __attribute__((format(printf,5,6))); extern void class_device_destroy(struct class *cls, dev_t devt); - /* interface for exporting device attributes */ struct device_attribute { struct attribute attr; @@ -400,6 +401,8 @@ extern struct device *device_create(struct class *cls, struct device *parent, __attribute__((format(printf,4,5))); extern void device_destroy(struct class *cls, dev_t devt); +extern int virtual_device_parent(struct device *dev); + /* * Platform "fixup" functions - allow the platform to have their say * about devices and actions that the general device layer doesn't -- cgit v1.2.3 From c47ed219ba81632595e9f02e27318151fec16c9e Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Wed, 13 Sep 2006 15:34:05 +0200 Subject: Class: add support for class interfaces for devices When moving class_device usage over to device, we need to handle class_interfaces properly with devices. This patch adds that support. Signed-off-by: Greg Kroah-Hartman --- drivers/base/class.c | 10 ++++++++++ drivers/base/core.c | 14 +++++++++++++- include/linux/device.h | 2 ++ 3 files changed, 25 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/drivers/base/class.c b/drivers/base/class.c index cbdf47c0c60d..b06b0e2b9c62 100644 --- a/drivers/base/class.c +++ b/drivers/base/class.c @@ -842,6 +842,7 @@ int class_interface_register(struct class_interface *class_intf) { struct class *parent; struct class_device *class_dev; + struct device *dev; if (!class_intf || !class_intf->class) return -ENODEV; @@ -856,6 +857,10 @@ int class_interface_register(struct class_interface *class_intf) list_for_each_entry(class_dev, &parent->children, node) class_intf->add(class_dev, class_intf); } + if (class_intf->add_dev) { + list_for_each_entry(dev, &parent->devices, node) + class_intf->add_dev(dev, class_intf); + } up(&parent->sem); return 0; @@ -865,6 +870,7 @@ void class_interface_unregister(struct class_interface *class_intf) { struct class * parent = class_intf->class; struct class_device *class_dev; + struct device *dev; if (!parent) return; @@ -875,6 +881,10 @@ void class_interface_unregister(struct class_interface *class_intf) list_for_each_entry(class_dev, &parent->children, node) class_intf->remove(class_dev, class_intf); } + if (class_intf->remove_dev) { + list_for_each_entry(dev, &parent->devices, node) + class_intf->remove_dev(dev, class_intf); + } up(&parent->sem); class_put(parent); diff --git a/drivers/base/core.c b/drivers/base/core.c index e21a65fc043e..1d3d3582fcca 100644 --- a/drivers/base/core.c +++ b/drivers/base/core.c @@ -372,6 +372,7 @@ int device_add(struct device *dev) { struct device *parent = NULL; char *class_name = NULL; + struct class_interface *class_intf; int error = -EINVAL; dev = get_device(dev); @@ -451,9 +452,14 @@ int device_add(struct device *dev) klist_add_tail(&dev->knode_parent, &parent->klist_children); if (dev->class) { - /* tie the class to the device */ down(&dev->class->sem); + /* tie the class to the device */ list_add_tail(&dev->node, &dev->class->devices); + + /* notify any interfaces that the device is here */ + list_for_each_entry(class_intf, &dev->class->interfaces, node) + if (class_intf->add_dev) + class_intf->add_dev(dev, class_intf); up(&dev->class->sem); } @@ -548,6 +554,7 @@ void device_del(struct device * dev) { struct device * parent = dev->parent; char *class_name = NULL; + struct class_interface *class_intf; if (parent) klist_del(&dev->knode_parent); @@ -563,6 +570,11 @@ void device_del(struct device * dev) } kfree(class_name); down(&dev->class->sem); + /* notify any interfaces that the device is now gone */ + list_for_each_entry(class_intf, &dev->class->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); } diff --git a/include/linux/device.h b/include/linux/device.h index bbb0d6b5d232..e0fae0e76fa9 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -278,6 +278,8 @@ struct class_interface { int (*add) (struct class_device *, struct class_interface *); void (*remove) (struct class_device *, struct class_interface *); + int (*add_dev) (struct device *, struct class_interface *); + void (*remove_dev) (struct device *, struct class_interface *); }; extern int class_interface_register(struct class_interface *); -- cgit v1.2.3 From 2589f1887b0bf9f08ec3d7f3c5705ccb7c628076 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Tue, 19 Sep 2006 09:39:19 -0700 Subject: Driver core: add ability for devices to create and remove bin files Makes it easier for devices to create and remove binary attribute files so they don't have to call directly into sysfs. This is needed to help with the conversion from struct class_device to struct device. Signed-off-by: Greg Kroah-Hartman --- drivers/base/core.c | 26 ++++++++++++++++++++++++++ include/linux/device.h | 4 ++++ 2 files changed, 30 insertions(+) (limited to 'include') diff --git a/drivers/base/core.c b/drivers/base/core.c index 1d3d3582fcca..bc9f35c81691 100644 --- a/drivers/base/core.c +++ b/drivers/base/core.c @@ -319,6 +319,32 @@ void device_remove_file(struct device * dev, struct device_attribute * attr) } } +/** + * device_create_bin_file - create sysfs binary attribute file for device. + * @dev: device. + * @attr: device binary attribute descriptor. + */ +int device_create_bin_file(struct device *dev, struct bin_attribute *attr) +{ + int error = -EINVAL; + if (dev) + error = sysfs_create_bin_file(&dev->kobj, attr); + return error; +} +EXPORT_SYMBOL_GPL(device_create_bin_file); + +/** + * device_remove_bin_file - remove sysfs binary attribute file + * @dev: device. + * @attr: device binary attribute descriptor. + */ +void device_remove_bin_file(struct device *dev, struct bin_attribute *attr) +{ + if (dev) + sysfs_remove_bin_file(&dev->kobj, attr); +} +EXPORT_SYMBOL_GPL(device_remove_bin_file); + static void klist_children_get(struct klist_node *n) { struct device *dev = container_of(n, struct device, knode_parent); diff --git a/include/linux/device.h b/include/linux/device.h index e0fae0e76fa9..7d447d7271c5 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -309,6 +309,10 @@ struct device_attribute dev_attr_##_name = __ATTR(_name,_mode,_show,_store) extern int device_create_file(struct device *device, struct device_attribute * entry); extern void device_remove_file(struct device * dev, struct device_attribute * attr); +extern int __must_check device_create_bin_file(struct device *dev, + struct bin_attribute *attr); +extern void device_remove_bin_file(struct device *dev, + struct bin_attribute *attr); struct device { struct klist klist_children; struct klist_node knode_parent; /* node in sibling list */ -- cgit v1.2.3 From 995982ca79d9262869513948ec7c540f32035491 Mon Sep 17 00:00:00 2001 From: "Randy.Dunlap" Date: Mon, 10 Jul 2006 23:05:25 -0700 Subject: sysfs_remove_bin_file: no return value, dump_stack on error Make sysfs_remove_bin_file() void. If it detects an error, printk the file name and call dump_stack(). sysfs_hash_and_remove() now returns an error code indicating its success or failure so that sysfs_remove_bin_file() can know success/failure. Convert the only driver that checked the return value of sysfs_remove_bin_file(). Signed-off-by: Randy Dunlap Signed-off-by: Greg Kroah-Hartman --- drivers/pci/hotplug/acpiphp_ibm.c | 4 +--- fs/sysfs/bin.c | 13 ++++++++----- fs/sysfs/inode.c | 11 ++++++++--- fs/sysfs/sysfs.h | 2 +- include/linux/sysfs.h | 2 +- 5 files changed, 19 insertions(+), 13 deletions(-) (limited to 'include') diff --git a/drivers/pci/hotplug/acpiphp_ibm.c b/drivers/pci/hotplug/acpiphp_ibm.c index 317457dd4014..d0a07d9ab30c 100644 --- a/drivers/pci/hotplug/acpiphp_ibm.c +++ b/drivers/pci/hotplug/acpiphp_ibm.c @@ -487,9 +487,7 @@ static void __exit ibm_acpiphp_exit(void) if (ACPI_FAILURE(status)) err("%s: Notification handler removal failed\n", __FUNCTION__); /* remove the /sys entries */ - if (sysfs_remove_bin_file(sysdir, &ibm_apci_table_attr)) - err("%s: removal of sysfs file apci_table failed\n", - __FUNCTION__); + sysfs_remove_bin_file(sysdir, &ibm_apci_table_attr); } module_init(ibm_acpiphp_init); diff --git a/fs/sysfs/bin.c b/fs/sysfs/bin.c index c16a93c353c0..98022e41cda1 100644 --- a/fs/sysfs/bin.c +++ b/fs/sysfs/bin.c @@ -10,6 +10,7 @@ #include #include +#include #include #include #include @@ -176,7 +177,6 @@ const struct file_operations bin_fops = { * sysfs_create_bin_file - create binary file for object. * @kobj: object. * @attr: attribute descriptor. - * */ int sysfs_create_bin_file(struct kobject * kobj, struct bin_attribute * attr) @@ -191,13 +191,16 @@ int sysfs_create_bin_file(struct kobject * kobj, struct bin_attribute * attr) * sysfs_remove_bin_file - remove binary file for object. * @kobj: object. * @attr: attribute descriptor. - * */ -int sysfs_remove_bin_file(struct kobject * kobj, struct bin_attribute * attr) +void sysfs_remove_bin_file(struct kobject * kobj, struct bin_attribute * attr) { - sysfs_hash_and_remove(kobj->dentry,attr->attr.name); - return 0; + if (sysfs_hash_and_remove(kobj->dentry, attr->attr.name) < 0) { + printk(KERN_ERR "%s: " + "bad dentry or inode or no such file: \"%s\"\n", + __FUNCTION__, attr->attr.name); + dump_stack(); + } } EXPORT_SYMBOL_GPL(sysfs_create_bin_file); diff --git a/fs/sysfs/inode.c b/fs/sysfs/inode.c index 9889e54e1f13..fd7cd5f843d2 100644 --- a/fs/sysfs/inode.c +++ b/fs/sysfs/inode.c @@ -12,6 +12,7 @@ #include #include #include +#include #include "sysfs.h" extern struct super_block * sysfs_sb; @@ -234,17 +235,18 @@ void sysfs_drop_dentry(struct sysfs_dirent * sd, struct dentry * parent) } } -void sysfs_hash_and_remove(struct dentry * dir, const char * name) +int sysfs_hash_and_remove(struct dentry * dir, const char * name) { struct sysfs_dirent * sd; struct sysfs_dirent * parent_sd; + int found = 0; if (!dir) - return; + return -ENOENT; if (dir->d_inode == NULL) /* no inode means this hasn't been made visible yet */ - return; + return -ENOENT; parent_sd = dir->d_fsdata; mutex_lock(&dir->d_inode->i_mutex); @@ -255,8 +257,11 @@ void sysfs_hash_and_remove(struct dentry * dir, const char * name) list_del_init(&sd->s_sibling); sysfs_drop_dentry(sd, dir); sysfs_put(sd); + found = 1; break; } } mutex_unlock(&dir->d_inode->i_mutex); + + return found ? 0 : -ENOENT; } diff --git a/fs/sysfs/sysfs.h b/fs/sysfs/sysfs.h index 3651ffb5ec09..6f3d6bd52887 100644 --- a/fs/sysfs/sysfs.h +++ b/fs/sysfs/sysfs.h @@ -10,7 +10,7 @@ extern int sysfs_make_dirent(struct sysfs_dirent *, struct dentry *, void *, umode_t, int); extern int sysfs_add_file(struct dentry *, const struct attribute *, int); -extern void sysfs_hash_and_remove(struct dentry * dir, const char * name); +extern int sysfs_hash_and_remove(struct dentry * dir, const char * name); extern struct sysfs_dirent *sysfs_find(struct sysfs_dirent *dir, const char * name); extern int sysfs_create_subdir(struct kobject *, const char *, struct dentry **); diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h index 1ea5d3cda6ae..95f6db54d8d2 100644 --- a/include/linux/sysfs.h +++ b/include/linux/sysfs.h @@ -114,7 +114,7 @@ extern void sysfs_remove_link(struct kobject *, const char * name); int sysfs_create_bin_file(struct kobject * kobj, struct bin_attribute * attr); -int sysfs_remove_bin_file(struct kobject * kobj, struct bin_attribute * attr); +void sysfs_remove_bin_file(struct kobject *kobj, struct bin_attribute *attr); int sysfs_create_group(struct kobject *, const struct attribute_group *); void sysfs_remove_group(struct kobject *, const struct attribute_group *); -- cgit v1.2.3 From 4a7fb6363f2d1a6c09a10253937f672f3c7929e1 Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Mon, 14 Aug 2006 22:43:17 -0700 Subject: add __must_check to device management code We're getting a lot of crashes in the sysfs/kobject/device/bus/class code and they're very hard to diagnose. I'm suspecting that in some cases this is because drivers aren't checking return values and aren't handling errors correctly. So the code blithely blunders on and crashes later in very obscure ways. There's just no reason to ignore errors which can and do occur. So the patch sprinkles __must_check all over these APIs. Causes 1,513 new warnings. Heh. Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- include/linux/device.h | 52 ++++++++++++++++++++++++++----------------------- include/linux/kobject.h | 16 ++++++++------- include/linux/pci.h | 34 +++++++++++++++++--------------- include/linux/sysfs.h | 19 ++++++++++-------- 4 files changed, 66 insertions(+), 55 deletions(-) (limited to 'include') diff --git a/include/linux/device.h b/include/linux/device.h index 7d447d7271c5..ad4db72f5733 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -15,6 +15,7 @@ #include #include #include +#include #include #include #include @@ -58,7 +59,7 @@ struct bus_type { int (*resume)(struct device * dev); }; -extern int bus_register(struct bus_type * bus); +extern int __must_check bus_register(struct bus_type * bus); extern void bus_unregister(struct bus_type * bus); extern void bus_rescan_devices(struct bus_type * bus); @@ -70,9 +71,9 @@ int bus_for_each_dev(struct bus_type * bus, struct device * start, void * data, struct device * bus_find_device(struct bus_type *bus, struct device *start, void *data, int (*match)(struct device *, void *)); -int bus_for_each_drv(struct bus_type * bus, struct device_driver * start, - void * data, int (*fn)(struct device_driver *, void *)); - +int __must_check bus_for_each_drv(struct bus_type *bus, + struct device_driver *start, void *data, + int (*fn)(struct device_driver *, void *)); /* driverfs interface for exporting bus attributes */ @@ -85,7 +86,8 @@ struct bus_attribute { #define BUS_ATTR(_name,_mode,_show,_store) \ struct bus_attribute bus_attr_##_name = __ATTR(_name,_mode,_show,_store) -extern int bus_create_file(struct bus_type *, struct bus_attribute *); +extern int __must_check bus_create_file(struct bus_type *, + struct bus_attribute *); extern void bus_remove_file(struct bus_type *, struct bus_attribute *); struct device_driver { @@ -107,14 +109,13 @@ struct device_driver { }; -extern int driver_register(struct device_driver * drv); +extern int __must_check driver_register(struct device_driver * drv); extern void driver_unregister(struct device_driver * drv); extern struct device_driver * get_driver(struct device_driver * drv); extern void put_driver(struct device_driver * drv); extern struct device_driver *driver_find(const char *name, struct bus_type *bus); - /* driverfs interface for exporting driver attributes */ struct driver_attribute { @@ -126,16 +127,17 @@ struct driver_attribute { #define DRIVER_ATTR(_name,_mode,_show,_store) \ struct driver_attribute driver_attr_##_name = __ATTR(_name,_mode,_show,_store) -extern int driver_create_file(struct device_driver *, struct driver_attribute *); +extern int __must_check driver_create_file(struct device_driver *, + struct driver_attribute *); extern void driver_remove_file(struct device_driver *, struct driver_attribute *); -extern int driver_for_each_device(struct device_driver * drv, struct device * start, - void * data, int (*fn)(struct device *, void *)); +extern int __must_check driver_for_each_device(struct device_driver * drv, + struct device *start, void *data, + int (*fn)(struct device *, void *)); struct device * driver_find_device(struct device_driver *drv, struct device *start, void *data, int (*match)(struct device *, void *)); - /* * device classes */ @@ -168,7 +170,7 @@ struct class { int (*resume)(struct device *); }; -extern int class_register(struct class *); +extern int __must_check class_register(struct class *); extern void class_unregister(struct class *); @@ -181,7 +183,8 @@ struct class_attribute { #define CLASS_ATTR(_name,_mode,_show,_store) \ struct class_attribute class_attr_##_name = __ATTR(_name,_mode,_show,_store) -extern int class_create_file(struct class *, const struct class_attribute *); +extern int __must_check class_create_file(struct class *, + const struct class_attribute *); extern void class_remove_file(struct class *, const struct class_attribute *); struct class_device_attribute { @@ -194,7 +197,7 @@ struct class_device_attribute { struct class_device_attribute class_device_attr_##_name = \ __ATTR(_name,_mode,_show,_store) -extern int class_device_create_file(struct class_device *, +extern int __must_check class_device_create_file(struct class_device *, const struct class_device_attribute *); /** @@ -254,10 +257,10 @@ class_set_devdata (struct class_device *dev, void *data) } -extern int class_device_register(struct class_device *); +extern int __must_check class_device_register(struct class_device *); extern void class_device_unregister(struct class_device *); extern void class_device_initialize(struct class_device *); -extern int class_device_add(struct class_device *); +extern int __must_check class_device_add(struct class_device *); extern void class_device_del(struct class_device *); extern int class_device_rename(struct class_device *, char *); @@ -267,7 +270,7 @@ extern void class_device_put(struct class_device *); extern void class_device_remove_file(struct class_device *, const struct class_device_attribute *); -extern int class_device_create_bin_file(struct class_device *, +extern int __must_check class_device_create_bin_file(struct class_device *, struct bin_attribute *); extern void class_device_remove_bin_file(struct class_device *, struct bin_attribute *); @@ -282,7 +285,7 @@ struct class_interface { void (*remove_dev) (struct device *, struct class_interface *); }; -extern int class_interface_register(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); @@ -307,7 +310,8 @@ struct device_attribute { #define DEVICE_ATTR(_name,_mode,_show,_store) \ struct device_attribute dev_attr_##_name = __ATTR(_name,_mode,_show,_store) -extern int device_create_file(struct device *device, struct device_attribute * entry); +extern int __must_check device_create_file(struct device *device, + struct device_attribute * entry); extern void device_remove_file(struct device * dev, struct device_attribute * attr); extern int __must_check device_create_bin_file(struct device *dev, struct bin_attribute *attr); @@ -380,12 +384,12 @@ static inline int device_is_registered(struct device *dev) /* * High level routines for use by the bus drivers */ -extern int device_register(struct device * dev); +extern int __must_check device_register(struct device * dev); extern void device_unregister(struct device * dev); extern void device_initialize(struct device * dev); -extern int device_add(struct device * dev); +extern int __must_check device_add(struct device * dev); extern void device_del(struct device * dev); -extern int device_for_each_child(struct device *, void *, +extern int __must_check device_for_each_child(struct device *, void *, int (*fn)(struct device *, void *)); extern int device_rename(struct device *dev, char *new_name); @@ -395,7 +399,7 @@ extern int device_rename(struct device *dev, char *new_name); */ extern void device_bind_driver(struct device * dev); extern void device_release_driver(struct device * dev); -extern int device_attach(struct device * dev); +extern int __must_check device_attach(struct device * dev); extern void driver_attach(struct device_driver * drv); extern void device_reprobe(struct device *dev); @@ -433,7 +437,7 @@ extern void device_shutdown(void); /* drivers/base/firmware.c */ -extern int firmware_register(struct subsystem *); +extern int __must_check firmware_register(struct subsystem *); extern void firmware_unregister(struct subsystem *); /* debugging and troubleshooting/diagnostic helpers. */ diff --git a/include/linux/kobject.h b/include/linux/kobject.h index 2d229327959e..bcd9cd173c2c 100644 --- a/include/linux/kobject.h +++ b/include/linux/kobject.h @@ -20,6 +20,7 @@ #include #include #include +#include #include #include #include @@ -71,12 +72,12 @@ static inline const char * kobject_name(const struct kobject * kobj) extern void kobject_init(struct kobject *); extern void kobject_cleanup(struct kobject *); -extern int kobject_add(struct kobject *); +extern int __must_check kobject_add(struct kobject *); extern void kobject_del(struct kobject *); -extern int kobject_rename(struct kobject *, const char *new_name); +extern int __must_check kobject_rename(struct kobject *, const char *new_name); -extern int kobject_register(struct kobject *); +extern int __must_check kobject_register(struct kobject *); extern void kobject_unregister(struct kobject *); extern struct kobject * kobject_get(struct kobject *); @@ -128,8 +129,8 @@ struct kset { extern void kset_init(struct kset * k); -extern int kset_add(struct kset * k); -extern int kset_register(struct kset * k); +extern int __must_check kset_add(struct kset * k); +extern int __must_check kset_register(struct kset * k); extern void kset_unregister(struct kset * k); static inline struct kset * to_kset(struct kobject * kobj) @@ -239,7 +240,7 @@ extern struct subsystem hypervisor_subsys; (obj)->subsys.kset.kobj.kset = &(_subsys).kset extern void subsystem_init(struct subsystem *); -extern int subsystem_register(struct subsystem *); +extern int __must_check subsystem_register(struct subsystem *); extern void subsystem_unregister(struct subsystem *); static inline struct subsystem * subsys_get(struct subsystem * s) @@ -258,7 +259,8 @@ struct subsys_attribute { ssize_t (*store)(struct subsystem *, const char *, size_t); }; -extern int subsys_create_file(struct subsystem * , struct subsys_attribute *); +extern int __must_check subsys_create_file(struct subsystem * , + struct subsys_attribute *); #if defined(CONFIG_HOTPLUG) void kobject_uevent(struct kobject *kobj, enum kobject_action action); diff --git a/include/linux/pci.h b/include/linux/pci.h index 9514bbfe96e2..3ec72551ac31 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -49,6 +49,7 @@ #include #include #include +#include #include #include @@ -403,7 +404,7 @@ extern struct list_head pci_root_buses; /* list of all known PCI buses */ extern struct list_head pci_devices; /* list of all devices */ void pcibios_fixup_bus(struct pci_bus *); -int pcibios_enable_device(struct pci_dev *, int mask); +int __must_check pcibios_enable_device(struct pci_dev *, int mask); char *pcibios_setup (char *str); /* Used only when drivers/pci/setup.c is used */ @@ -490,19 +491,19 @@ static inline int pci_write_config_dword(struct pci_dev *dev, int where, u32 val return pci_bus_write_config_dword (dev->bus, dev->devfn, where, val); } -int pci_enable_device(struct pci_dev *dev); -int pci_enable_device_bars(struct pci_dev *dev, int mask); +int __must_check pci_enable_device(struct pci_dev *dev); +int __must_check pci_enable_device_bars(struct pci_dev *dev, int mask); void pci_disable_device(struct pci_dev *dev); void pci_set_master(struct pci_dev *dev); #define HAVE_PCI_SET_MWI -int pci_set_mwi(struct pci_dev *dev); +int __must_check pci_set_mwi(struct pci_dev *dev); void pci_clear_mwi(struct pci_dev *dev); void pci_intx(struct pci_dev *dev, int enable); int pci_set_dma_mask(struct pci_dev *dev, u64 mask); int pci_set_consistent_dma_mask(struct pci_dev *dev, u64 mask); void pci_update_resource(struct pci_dev *dev, struct resource *res, int resno); -int pci_assign_resource(struct pci_dev *dev, int i); -int pci_assign_resource_fixed(struct pci_dev *dev, int i); +int __must_check pci_assign_resource(struct pci_dev *dev, int i); +int __must_check pci_assign_resource_fixed(struct pci_dev *dev, int i); void pci_restore_bars(struct pci_dev *dev); /* ROM control related routines */ @@ -528,23 +529,24 @@ void pdev_sort_resources(struct pci_dev *, struct resource_list *); void pci_fixup_irqs(u8 (*)(struct pci_dev *, u8 *), int (*)(struct pci_dev *, u8, u8)); #define HAVE_PCI_REQ_REGIONS 2 -int pci_request_regions(struct pci_dev *, const char *); +int __must_check pci_request_regions(struct pci_dev *, const char *); void pci_release_regions(struct pci_dev *); -int pci_request_region(struct pci_dev *, int, const char *); +int __must_check pci_request_region(struct pci_dev *, int, const char *); void pci_release_region(struct pci_dev *, int); /* drivers/pci/bus.c */ -int pci_bus_alloc_resource(struct pci_bus *bus, struct resource *res, - resource_size_t size, resource_size_t align, - resource_size_t min, unsigned int type_mask, - void (*alignf)(void *, struct resource *, - resource_size_t, resource_size_t), - void *alignf_data); +int __must_check pci_bus_alloc_resource(struct pci_bus *bus, + struct resource *res, resource_size_t size, + resource_size_t align, resource_size_t min, + unsigned int type_mask, + void (*alignf)(void *, struct resource *, + resource_size_t, resource_size_t), + void *alignf_data); void pci_enable_bridges(struct pci_bus *bus); /* Proper probing supporting hot-pluggable devices */ -int __pci_register_driver(struct pci_driver *, struct module *); -static inline int pci_register_driver(struct pci_driver *driver) +int __must_check __pci_register_driver(struct pci_driver *, struct module *); +static inline int __must_check pci_register_driver(struct pci_driver *driver) { return __pci_register_driver(driver, THIS_MODULE); } diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h index 95f6db54d8d2..02ad790921fd 100644 --- a/include/linux/sysfs.h +++ b/include/linux/sysfs.h @@ -10,6 +10,7 @@ #ifndef _SYSFS_H_ #define _SYSFS_H_ +#include #include struct kobject; @@ -86,37 +87,39 @@ struct sysfs_dirent { #ifdef CONFIG_SYSFS -extern int +extern int __must_check sysfs_create_dir(struct kobject *); extern void sysfs_remove_dir(struct kobject *); -extern int +extern int __must_check sysfs_rename_dir(struct kobject *, const char *new_name); -extern int +extern int __must_check sysfs_create_file(struct kobject *, const struct attribute *); -extern int +extern int __must_check sysfs_update_file(struct kobject *, const struct attribute *); -extern int +extern int __must_check sysfs_chmod_file(struct kobject *kobj, struct attribute *attr, mode_t mode); extern void sysfs_remove_file(struct kobject *, const struct attribute *); -extern int +extern int __must_check sysfs_create_link(struct kobject * kobj, struct kobject * target, const char * name); extern void sysfs_remove_link(struct kobject *, const char * name); -int sysfs_create_bin_file(struct kobject * kobj, struct bin_attribute * attr); +int __must_check sysfs_create_bin_file(struct kobject *kobj, + struct bin_attribute *attr); void sysfs_remove_bin_file(struct kobject *kobj, struct bin_attribute *attr); -int sysfs_create_group(struct kobject *, const struct attribute_group *); +int __must_check sysfs_create_group(struct kobject *, + const struct attribute_group *); void sysfs_remove_group(struct kobject *, const struct attribute_group *); void sysfs_notify(struct kobject * k, char *dir, char *attr); -- cgit v1.2.3 From cebc04ba9aeb3a646cc746300421fc0e5aa4f253 Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Mon, 14 Aug 2006 22:43:18 -0700 Subject: add CONFIG_ENABLE_MUST_CHECK Those 1500 warnings can be a bit of a pain. Add a config option to shut them up. Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- include/linux/compiler.h | 5 +++++ lib/Kconfig.debug | 7 +++++++ 2 files changed, 12 insertions(+) (limited to 'include') diff --git a/include/linux/compiler.h b/include/linux/compiler.h index 9b4f11094937..060b96112ec6 100644 --- a/include/linux/compiler.h +++ b/include/linux/compiler.h @@ -99,6 +99,11 @@ extern void __chk_io_ptr(void __iomem *); #define __must_check #endif +#ifndef CONFIG_ENABLE_MUST_CHECK +#undef __must_check +#define __must_check +#endif + /* * Allow us to avoid 'defined but not used' warnings on functions and data, * as well as force them to be emitted to the assembly file. diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 554ee688a9f8..5c114c3f03c5 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -8,6 +8,13 @@ config PRINTK_TIME operations. This is useful for identifying long delays in kernel startup. +config ENABLE_MUST_CHECK + bool "Enable __must_check logic" + default y + help + Enable the __must_check logic in the kernel build. Disable this to + suppress the "warning: ignoring return value of 'foo', declared with + attribute warn_unused_result" messages. config MAGIC_SYSRQ bool "Magic SysRq key" -- cgit v1.2.3 From 8a6914ab7c95d471c23b42268aa8e1f55b3d2fdb Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Mon, 14 Aug 2006 22:43:19 -0700 Subject: v4l-dev2: handle __must_check We get hundreds of these: include/media/v4l2-dev.h:348: warning: ignoring return value of 'class_device_create_file', declared with attribute warn_unused_result Handle it, and propagate the __must_check back a level. Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- include/media/v4l2-dev.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/media/v4l2-dev.h b/include/media/v4l2-dev.h index 810462f8a374..bb495b7f4680 100644 --- a/include/media/v4l2-dev.h +++ b/include/media/v4l2-dev.h @@ -341,7 +341,7 @@ extern int video_usercopy(struct inode *inode, struct file *file, extern struct video_device* video_devdata(struct file*); #define to_video_device(cd) container_of(cd, struct video_device, class_dev) -static inline int +static inline int __must_check video_device_create_file(struct video_device *vfd, struct class_device_attribute *attr) { -- cgit v1.2.3 From f86db396ff455ed586751d21816a1ebd431264e5 Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Mon, 14 Aug 2006 22:43:20 -0700 Subject: drivers/base: check errors Add lots of return-value checking. : fix bus_rescan_devices()] Cc: "Randy.Dunlap" Signed-off-by: Cornelia Huck Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- drivers/base/base.h | 2 +- drivers/base/bus.c | 107 +++++++++++++++++++++++++++++++++---------------- drivers/base/dd.c | 37 ++++++++++++----- include/linux/device.h | 8 ++-- 4 files changed, 104 insertions(+), 50 deletions(-) (limited to 'include') diff --git a/drivers/base/base.h b/drivers/base/base.h index c3b8dc98b8a7..d26644a59537 100644 --- a/drivers/base/base.h +++ b/drivers/base/base.h @@ -16,7 +16,7 @@ extern int cpu_dev_init(void); extern int attribute_container_init(void); extern int bus_add_device(struct device * dev); -extern void bus_attach_device(struct device * dev); +extern int bus_attach_device(struct device * dev); extern void bus_remove_device(struct device * dev); extern struct bus_type *get_bus(struct bus_type * bus); extern void put_bus(struct bus_type * bus); diff --git a/drivers/base/bus.c b/drivers/base/bus.c index 4d22a1d10a1c..aa685a20b649 100644 --- a/drivers/base/bus.c +++ b/drivers/base/bus.c @@ -371,12 +371,20 @@ int bus_add_device(struct device * dev) if (bus) { pr_debug("bus %s: add device %s\n", bus->name, dev->bus_id); error = device_add_attrs(bus, dev); - if (!error) { - sysfs_create_link(&bus->devices.kobj, &dev->kobj, dev->bus_id); - sysfs_create_link(&dev->kobj, &dev->bus->subsys.kset.kobj, "subsystem"); - sysfs_create_link(&dev->kobj, &dev->bus->subsys.kset.kobj, "bus"); - } + if (error) + goto out; + error = sysfs_create_link(&bus->devices.kobj, + &dev->kobj, dev->bus_id); + if (error) + goto out; + error = sysfs_create_link(&dev->kobj, + &dev->bus->subsys.kset.kobj, "subsystem"); + if (error) + goto out; + error = sysfs_create_link(&dev->kobj, + &dev->bus->subsys.kset.kobj, "bus"); } +out: return error; } @@ -386,14 +394,19 @@ int bus_add_device(struct device * dev) * * - Try to attach to driver. */ -void bus_attach_device(struct device * dev) +int bus_attach_device(struct device * dev) { - struct bus_type * bus = dev->bus; + struct bus_type *bus = dev->bus; + int ret = 0; if (bus) { - device_attach(dev); - klist_add_tail(&dev->knode_bus, &bus->klist_devices); + ret = device_attach(dev); + if (ret >= 0) { + klist_add_tail(&dev->knode_bus, &bus->klist_devices); + ret = 0; + } } + return ret; } /** @@ -455,10 +468,17 @@ static void driver_remove_attrs(struct bus_type * bus, struct device_driver * dr * Thanks to drivers making their tables __devinit, we can't allow manual * bind and unbind from userspace unless CONFIG_HOTPLUG is enabled. */ -static void add_bind_files(struct device_driver *drv) +static int __must_check add_bind_files(struct device_driver *drv) { - driver_create_file(drv, &driver_attr_unbind); - driver_create_file(drv, &driver_attr_bind); + int ret; + + ret = driver_create_file(drv, &driver_attr_unbind); + if (ret == 0) { + ret = driver_create_file(drv, &driver_attr_bind); + if (ret) + driver_remove_file(drv, &driver_attr_unbind); + } + return ret; } static void remove_bind_files(struct device_driver *drv) @@ -476,7 +496,7 @@ static inline void remove_bind_files(struct device_driver *drv) {} * @drv: driver. * */ -int bus_add_driver(struct device_driver * drv) +int bus_add_driver(struct device_driver *drv) { struct bus_type * bus = get_bus(drv->bus); int error = 0; @@ -484,27 +504,39 @@ int bus_add_driver(struct device_driver * drv) if (bus) { pr_debug("bus %s: add driver %s\n", bus->name, drv->name); error = kobject_set_name(&drv->kobj, "%s", drv->name); - if (error) { - put_bus(bus); - return error; - } + if (error) + goto out_put_bus; drv->kobj.kset = &bus->drivers; - if ((error = kobject_register(&drv->kobj))) { - put_bus(bus); - return error; - } + if ((error = kobject_register(&drv->kobj))) + goto out_put_bus; - driver_attach(drv); + error = driver_attach(drv); + if (error) + goto out_unregister; klist_add_tail(&drv->knode_bus, &bus->klist_drivers); module_add_driver(drv->owner, drv); - driver_add_attrs(bus, drv); - add_bind_files(drv); + error = driver_add_attrs(bus, drv); + if (error) { + /* How the hell do we get out of this pickle? Give up */ + printk(KERN_ERR "%s: driver_add_attrs(%s) failed\n", + __FUNCTION__, drv->name); + } + error = add_bind_files(drv); + if (error) { + /* Ditto */ + printk(KERN_ERR "%s: add_bind_files(%s) failed\n", + __FUNCTION__, drv->name); + } } return error; +out_unregister: + kobject_unregister(&drv->kobj); +out_put_bus: + put_bus(bus); + return error; } - /** * bus_remove_driver - delete driver from bus's knowledge. * @drv: driver. @@ -530,16 +562,21 @@ void bus_remove_driver(struct device_driver * drv) /* Helper for bus_rescan_devices's iter */ -static int bus_rescan_devices_helper(struct device *dev, void *data) +static int __must_check bus_rescan_devices_helper(struct device *dev, + void *data) { + int ret = 0; + if (!dev->driver) { if (dev->parent) /* Needed for USB */ down(&dev->parent->sem); - device_attach(dev); + ret = device_attach(dev); if (dev->parent) up(&dev->parent->sem); + if (ret > 0) + ret = 0; } - return 0; + return ret < 0 ? ret : 0; } /** @@ -550,9 +587,9 @@ static int bus_rescan_devices_helper(struct device *dev, void *data) * attached and rescan it against existing drivers to see if it matches * any by calling device_attach() for the unbound devices. */ -void bus_rescan_devices(struct bus_type * bus) +int bus_rescan_devices(struct bus_type * bus) { - bus_for_each_dev(bus, NULL, NULL, bus_rescan_devices_helper); + return bus_for_each_dev(bus, NULL, NULL, bus_rescan_devices_helper); } /** @@ -564,7 +601,7 @@ void bus_rescan_devices(struct bus_type * bus) * to use if probing criteria changed during a devices lifetime and * driver attachment should change accordingly. */ -void device_reprobe(struct device *dev) +int device_reprobe(struct device *dev) { if (dev->driver) { if (dev->parent) /* Needed for USB */ @@ -573,14 +610,14 @@ void device_reprobe(struct device *dev) if (dev->parent) up(&dev->parent->sem); } - - bus_rescan_devices_helper(dev, NULL); + return bus_rescan_devices_helper(dev, NULL); } EXPORT_SYMBOL_GPL(device_reprobe); -struct bus_type * get_bus(struct bus_type * bus) +struct bus_type *get_bus(struct bus_type *bus) { - return bus ? container_of(subsys_get(&bus->subsys), struct bus_type, subsys) : NULL; + return bus ? container_of(subsys_get(&bus->subsys), + struct bus_type, subsys) : NULL; } void put_bus(struct bus_type * bus) diff --git a/drivers/base/dd.c b/drivers/base/dd.c index 889c71111239..9f6f11ca0ab6 100644 --- a/drivers/base/dd.c +++ b/drivers/base/dd.c @@ -38,17 +38,29 @@ * * This function must be called with @dev->sem held. */ -void device_bind_driver(struct device * dev) +int device_bind_driver(struct device *dev) { - if (klist_node_attached(&dev->knode_driver)) - return; + int ret; + + if (klist_node_attached(&dev->knode_driver)) { + printk(KERN_WARNING "%s: device %s already bound\n", + __FUNCTION__, kobject_name(&dev->kobj)); + return 0; + } pr_debug("bound device '%s' to driver '%s'\n", dev->bus_id, dev->driver->name); klist_add_tail(&dev->knode_driver, &dev->driver->klist_devices); - sysfs_create_link(&dev->driver->kobj, &dev->kobj, + ret = sysfs_create_link(&dev->driver->kobj, &dev->kobj, kobject_name(&dev->kobj)); - sysfs_create_link(&dev->kobj, &dev->driver->kobj, "driver"); + if (ret == 0) { + ret = sysfs_create_link(&dev->kobj, &dev->driver->kobj, + "driver"); + if (ret) + sysfs_remove_link(&dev->driver->kobj, + kobject_name(&dev->kobj)); + } + return ret; } /** @@ -91,7 +103,11 @@ int driver_probe_device(struct device_driver * drv, struct device * dev) goto ProbeFailed; } } - device_bind_driver(dev); + if (device_bind_driver(dev)) { + printk(KERN_ERR "%s: device_bind_driver(%s) failed\n", + __FUNCTION__, dev->bus_id); + /* How does undo a ->probe? We're screwed. */ + } ret = 1; pr_debug("%s: Bound Device %s to Driver %s\n", drv->bus->name, dev->bus_id, drv->name); @@ -139,8 +155,9 @@ int device_attach(struct device * dev) down(&dev->sem); if (dev->driver) { - device_bind_driver(dev); - ret = 1; + ret = device_bind_driver(dev); + if (ret == 0) + ret = 1; } else ret = bus_for_each_drv(dev->bus, NULL, dev, __device_attach); up(&dev->sem); @@ -182,9 +199,9 @@ static int __driver_attach(struct device * dev, void * data) * returns 0 and the @dev->driver is set, we've found a * compatible pair. */ -void driver_attach(struct device_driver * drv) +int driver_attach(struct device_driver * drv) { - bus_for_each_dev(drv->bus, NULL, drv, __driver_attach); + return bus_for_each_dev(drv->bus, NULL, drv, __driver_attach); } /** diff --git a/include/linux/device.h b/include/linux/device.h index ad4db72f5733..b3da9a870cfc 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -62,7 +62,7 @@ struct bus_type { extern int __must_check bus_register(struct bus_type * bus); extern void bus_unregister(struct bus_type * bus); -extern void bus_rescan_devices(struct bus_type * bus); +extern int __must_check bus_rescan_devices(struct bus_type * bus); /* iterator helpers for buses */ @@ -397,11 +397,11 @@ extern int device_rename(struct device *dev, char *new_name); * Manual binding of a device to driver. See drivers/base/bus.c * for information on use. */ -extern void device_bind_driver(struct device * dev); +extern int __must_check device_bind_driver(struct device *dev); extern void device_release_driver(struct device * dev); extern int __must_check device_attach(struct device * dev); -extern void driver_attach(struct device_driver * drv); -extern void device_reprobe(struct device *dev); +extern int __must_check driver_attach(struct device_driver *drv); +extern int __must_check device_reprobe(struct device *dev); /* * Easy functions for dynamically creating devices on the fly -- cgit v1.2.3 From f20a9ead0d005fbeeae3fc21a96f9bf197ac1c1c Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Mon, 14 Aug 2006 22:43:23 -0700 Subject: sysfs: add proper sysfs_init() prototype Don't be crufty. Mark it __must_check too. Cc: "Randy.Dunlap" Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- fs/namespace.c | 10 +--------- include/linux/sysfs.h | 7 +++++++ 2 files changed, 8 insertions(+), 9 deletions(-) (limited to 'include') diff --git a/fs/namespace.c b/fs/namespace.c index fa7ed6a9fc2d..36d180858136 100644 --- a/fs/namespace.c +++ b/fs/namespace.c @@ -17,6 +17,7 @@ #include #include #include +#include #include #include #include @@ -28,15 +29,6 @@ extern int __init init_rootfs(void); -#ifdef CONFIG_SYSFS -extern int __init sysfs_init(void); -#else -static inline int sysfs_init(void) -{ - return 0; -} -#endif - /* spinlock for vfsmount related operations, inplace of dcache_lock */ __cacheline_aligned_in_smp DEFINE_SPINLOCK(vfsmount_lock); diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h index 02ad790921fd..6d5c43d31dec 100644 --- a/include/linux/sysfs.h +++ b/include/linux/sysfs.h @@ -123,6 +123,8 @@ int __must_check sysfs_create_group(struct kobject *, void sysfs_remove_group(struct kobject *, const struct attribute_group *); void sysfs_notify(struct kobject * k, char *dir, char *attr); +extern int __must_check sysfs_init(void); + #else /* CONFIG_SYSFS */ static inline int sysfs_create_dir(struct kobject * k) @@ -194,6 +196,11 @@ static inline void sysfs_notify(struct kobject * k, char *dir, char *attr) { } +static inline int __must_check sysfs_init(void) +{ + return 0; +} + #endif /* CONFIG_SYSFS */ #endif /* _SYSFS_H_ */ -- cgit v1.2.3 From d779249ed4cb3b50690de6de8448829d65a1cd08 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Tue, 18 Jul 2006 10:59:59 -0700 Subject: Driver Core: add ability for drivers to do a threaded probe This adds the infrastructure for drivers to do a threaded probe, and waits at init time for all currently outstanding probes to complete. A new kernel thread will be created when the probe() function for the driver is called, if the multithread_probe bit is set in the driver saying it can support this kind of operation. I have tested this with USB and PCI, and it works, and shaves off a lot of time in the boot process, but there are issues with finding root boot disks, and some USB drivers assume that this can never happen, so it is currently not enabled for any bus type. Individual drivers can enable this right now if they wish, and bus authors can selectivly turn it on as well, once they determine that their subsystem will work properly with it. Signed-off-by: Greg Kroah-Hartman --- drivers/base/dd.c | 108 ++++++++++++++++++++++++++++++++++++------------- include/linux/device.h | 3 ++ init/do_mounts.c | 5 +++ 3 files changed, 89 insertions(+), 27 deletions(-) (limited to 'include') diff --git a/drivers/base/dd.c b/drivers/base/dd.c index 9f6f11ca0ab6..319a73be4180 100644 --- a/drivers/base/dd.c +++ b/drivers/base/dd.c @@ -17,6 +17,7 @@ #include #include +#include #include "base.h" #include "power/power.h" @@ -63,44 +64,35 @@ int device_bind_driver(struct device *dev) return ret; } -/** - * driver_probe_device - attempt to bind device & driver. - * @drv: driver. - * @dev: device. - * - * First, we call the bus's match function, if one present, which - * should compare the device IDs the driver supports with the - * device IDs of the device. Note we don't do this ourselves - * because we don't know the format of the ID structures, nor what - * is to be considered a match and what is not. - * - * This function returns 1 if a match is found, an error if one - * occurs (that is not -ENODEV or -ENXIO), and 0 otherwise. - * - * This function must be called with @dev->sem held. When called - * for a USB interface, @dev->parent->sem must be held as well. - */ -int driver_probe_device(struct device_driver * drv, struct device * dev) +struct stupid_thread_structure { + struct device_driver *drv; + struct device *dev; +}; + +static atomic_t probe_count = ATOMIC_INIT(0); +static int really_probe(void *void_data) { + struct stupid_thread_structure *data = void_data; + struct device_driver *drv = data->drv; + struct device *dev = data->dev; int ret = 0; - if (drv->bus->match && !drv->bus->match(dev, drv)) - goto Done; + atomic_inc(&probe_count); + pr_debug("%s: Probing driver %s with device %s\n", + drv->bus->name, drv->name, dev->bus_id); - pr_debug("%s: Matched Device %s with Driver %s\n", - drv->bus->name, dev->bus_id, drv->name); dev->driver = drv; if (dev->bus->probe) { ret = dev->bus->probe(dev); if (ret) { dev->driver = NULL; - goto ProbeFailed; + goto probe_failed; } } else if (drv->probe) { ret = drv->probe(dev); if (ret) { dev->driver = NULL; - goto ProbeFailed; + goto probe_failed; } } if (device_bind_driver(dev)) { @@ -111,9 +103,9 @@ int driver_probe_device(struct device_driver * drv, struct device * dev) ret = 1; pr_debug("%s: Bound Device %s to Driver %s\n", drv->bus->name, dev->bus_id, drv->name); - goto Done; + goto done; - ProbeFailed: +probe_failed: if (ret == -ENODEV || ret == -ENXIO) { /* Driver matched, but didn't support device * or device not found. @@ -126,7 +118,69 @@ int driver_probe_device(struct device_driver * drv, struct device * dev) "%s: probe of %s failed with error %d\n", drv->name, dev->bus_id, ret); } - Done: +done: + kfree(data); + atomic_dec(&probe_count); + return ret; +} + +/** + * driver_probe_done + * Determine if the probe sequence is finished or not. + * + * Should somehow figure out how to use a semaphore, not an atomic variable... + */ +int driver_probe_done(void) +{ + pr_debug("%s: probe_count = %d\n", __FUNCTION__, + atomic_read(&probe_count)); + if (atomic_read(&probe_count)) + return -EBUSY; + return 0; +} + +/** + * driver_probe_device - attempt to bind device & driver together + * @drv: driver to bind a device to + * @dev: device to try to bind to the driver + * + * First, we call the bus's match function, if one present, which should + * compare the device IDs the driver supports with the device IDs of the + * device. Note we don't do this ourselves because we don't know the + * format of the ID structures, nor what is to be considered a match and + * what is not. + * + * This function returns 1 if a match is found, an error if one occurs + * (that is not -ENODEV or -ENXIO), and 0 otherwise. + * + * This function must be called with @dev->sem held. When called for a + * USB interface, @dev->parent->sem must be held as well. + */ +int driver_probe_device(struct device_driver * drv, struct device * dev) +{ + struct stupid_thread_structure *data; + struct task_struct *probe_task; + int ret = 0; + + if (drv->bus->match && !drv->bus->match(dev, drv)) + goto done; + + pr_debug("%s: Matched Device %s with Driver %s\n", + drv->bus->name, dev->bus_id, drv->name); + + data = kmalloc(sizeof(*data), GFP_KERNEL); + data->drv = drv; + data->dev = dev; + + if (drv->multithread_probe) { + probe_task = kthread_run(really_probe, data, + "probe-%s", dev->bus_id); + if (IS_ERR(probe_task)) + ret = PTR_ERR(probe_task); + } else + ret = really_probe(data); + +done: return ret; } diff --git a/include/linux/device.h b/include/linux/device.h index b3da9a870cfc..74246efba931 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -106,6 +106,8 @@ struct device_driver { void (*shutdown) (struct device * dev); int (*suspend) (struct device * dev, pm_message_t state); int (*resume) (struct device * dev); + + unsigned int multithread_probe:1; }; @@ -115,6 +117,7 @@ extern void driver_unregister(struct device_driver * drv); extern struct device_driver * get_driver(struct device_driver * drv); extern void put_driver(struct device_driver * drv); extern struct device_driver *driver_find(const char *name, struct bus_type *bus); +extern int driver_probe_done(void); /* driverfs interface for exporting driver attributes */ diff --git a/init/do_mounts.c b/init/do_mounts.c index 94aeec7aa917..b290aadb1d3f 100644 --- a/init/do_mounts.c +++ b/init/do_mounts.c @@ -8,6 +8,7 @@ #include #include #include +#include #include #include @@ -403,6 +404,10 @@ void __init prepare_namespace(void) ssleep(root_delay); } + /* wait for the known devices to complete their probing */ + while (driver_probe_done() != 0) + msleep(100); + md_run_setup(); if (saved_root_name[0]) { -- cgit v1.2.3 From f2eaae197f4590c4d96f31b09b0ee9067421a95c Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Mon, 18 Sep 2006 16:22:34 -0400 Subject: Driver core: Fix potential deadlock in driver core There is a potential deadlock in the driver core. It boils down to the fact that bus_remove_device() calls klist_remove() instead of klist_del(), thereby waiting until the reference count of the klist_node in the bus's klist of devices drops to 0. The refcount can't reach 0 so long as a modprobe process is trying to bind a new driver to the device being removed, by calling __driver_attach(). The problem is that __driver_attach() tries to acquire the device's parent's semaphore, but the caller of bus_remove_device() is quite likely to own that semaphore already. It isn't sufficient just to replace klist_remove() with klist_del(). Doing so runs the risk that the device would remain on the bus's klist of devices for some time, and so could be bound to another driver even after it was unregistered. What's needed is a new way to distinguish whether or not a device is registered, based on a criterion other than whether its klist_node is linked into the bus's klist of devices. That way driver binding can fail when the device is unregistered, even if it is still linked into the klist. This patch (as782) implements the solution, by adding a new bitflag to indiate when a struct device is registered, by testing the flag before allowing a driver to bind a device, and by changing the definition of the device_is_registered() inline. Signed-off-by: Alan Stern Signed-off-by: Greg Kroah-Hartman --- drivers/base/bus.c | 8 ++++++-- drivers/base/dd.c | 2 ++ include/linux/device.h | 3 ++- 3 files changed, 10 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/drivers/base/bus.c b/drivers/base/bus.c index aa685a20b649..636af538a2b5 100644 --- a/drivers/base/bus.c +++ b/drivers/base/bus.c @@ -392,6 +392,7 @@ out: * bus_attach_device - add device to bus * @dev: device tried to attach to a driver * + * - Add device to bus's list of devices. * - Try to attach to driver. */ int bus_attach_device(struct device * dev) @@ -400,11 +401,13 @@ int bus_attach_device(struct device * dev) int ret = 0; if (bus) { + dev->is_registered = 1; ret = device_attach(dev); if (ret >= 0) { klist_add_tail(&dev->knode_bus, &bus->klist_devices); ret = 0; - } + } else + dev->is_registered = 0; } return ret; } @@ -425,7 +428,8 @@ void bus_remove_device(struct device * dev) sysfs_remove_link(&dev->kobj, "bus"); sysfs_remove_link(&dev->bus->devices.kobj, dev->bus_id); device_remove_attrs(dev->bus, dev); - klist_remove(&dev->knode_bus); + dev->is_registered = 0; + klist_del(&dev->knode_bus); pr_debug("bus %s: remove device %s\n", dev->bus->name, dev->bus_id); device_release_driver(dev); put_bus(dev->bus); diff --git a/drivers/base/dd.c b/drivers/base/dd.c index 319a73be4180..b5f43c3e44fa 100644 --- a/drivers/base/dd.c +++ b/drivers/base/dd.c @@ -162,6 +162,8 @@ int driver_probe_device(struct device_driver * drv, struct device * dev) struct task_struct *probe_task; int ret = 0; + if (!device_is_registered(dev)) + return -ENODEV; if (drv->bus->match && !drv->bus->match(dev, drv)) goto done; diff --git a/include/linux/device.h b/include/linux/device.h index 74246efba931..662e6a10144e 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -329,6 +329,7 @@ struct device { struct kobject kobj; char bus_id[BUS_ID_SIZE]; /* position on parent bus */ + unsigned is_registered:1; struct device_attribute uevent_attr; struct device_attribute *devt_attr; @@ -381,7 +382,7 @@ dev_set_drvdata (struct device *dev, void *data) static inline int device_is_registered(struct device *dev) { - return klist_node_attached(&dev->knode_bus); + return dev->is_registered; } /* -- cgit v1.2.3 From 874c4fe389d1358f82c96dc9b5092fc5c7690604 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Tue, 26 Sep 2006 10:52:26 +0200 Subject: [PATCH] i386: Allow to use GENERICARCH for UP kernels There are some machines around (large xSeries or Unisys ES7000) that need physical IO-APIC destination mode to access all of their IO devices. This currently doesn't work in UP kernels as used in distribution installers. This patch allows to compile even UP kernels as GENERICARCH which allows to use physical or clustered APIC mode. Signed-off-by: Andi Kleen --- arch/i386/Kconfig | 7 ++-- arch/i386/kernel/io_apic.c | 1 + arch/i386/kernel/mpparse.c | 1 + arch/i386/mach-generic/bigsmp.c | 1 + arch/i386/mach-generic/es7000.c | 1 + arch/i386/mach-generic/probe.c | 2 + arch/i386/mach-generic/summit.c | 1 + include/asm-i386/genapic.h | 69 +++++++++++++++++++------------- include/asm-i386/mach-es7000/mach_apic.h | 4 ++ include/asm-i386/mach-summit/mach_apic.h | 11 ++++- include/asm-i386/smp.h | 19 +++++---- 11 files changed, 76 insertions(+), 41 deletions(-) (limited to 'include') diff --git a/arch/i386/Kconfig b/arch/i386/Kconfig index b2751eadbc56..c134a545b37e 100644 --- a/arch/i386/Kconfig +++ b/arch/i386/Kconfig @@ -166,7 +166,6 @@ config X86_VISWS config X86_GENERICARCH bool "Generic architecture (Summit, bigsmp, ES7000, default)" - depends on SMP help This option compiles in the Summit, bigsmp, ES7000, default subarchitectures. It is intended for a generic binary kernel. @@ -263,7 +262,7 @@ source "kernel/Kconfig.preempt" config X86_UP_APIC bool "Local APIC support on uniprocessors" - depends on !SMP && !(X86_VISWS || X86_VOYAGER) + depends on !SMP && !(X86_VISWS || X86_VOYAGER || X86_GENERICARCH) help A local APIC (Advanced Programmable Interrupt Controller) is an integrated interrupt controller in the CPU. If you have a single-CPU @@ -288,12 +287,12 @@ config X86_UP_IOAPIC config X86_LOCAL_APIC bool - depends on X86_UP_APIC || ((X86_VISWS || SMP) && !X86_VOYAGER) + depends on X86_UP_APIC || ((X86_VISWS || SMP) && !X86_VOYAGER) || X86_GENERICARCH default y config X86_IO_APIC bool - depends on X86_UP_IOAPIC || (SMP && !(X86_VISWS || X86_VOYAGER)) + depends on X86_UP_IOAPIC || (SMP && !(X86_VISWS || X86_VOYAGER)) || X86_GENERICARCH default y config X86_VISWS_APIC diff --git a/arch/i386/kernel/io_apic.c b/arch/i386/kernel/io_apic.c index 4fb32c551fe0..4eacd52eeb74 100644 --- a/arch/i386/kernel/io_apic.c +++ b/arch/i386/kernel/io_apic.c @@ -40,6 +40,7 @@ #include #include +#include #include "io_ports.h" diff --git a/arch/i386/kernel/mpparse.c b/arch/i386/kernel/mpparse.c index a70b5fa0ef06..827569688562 100644 --- a/arch/i386/kernel/mpparse.c +++ b/arch/i386/kernel/mpparse.c @@ -30,6 +30,7 @@ #include #include +#include #include #include diff --git a/arch/i386/mach-generic/bigsmp.c b/arch/i386/mach-generic/bigsmp.c index ef7a6e6fcb9f..33d9f93557ba 100644 --- a/arch/i386/mach-generic/bigsmp.c +++ b/arch/i386/mach-generic/bigsmp.c @@ -5,6 +5,7 @@ #define APIC_DEFINITION 1 #include #include +#include #include #include #include diff --git a/arch/i386/mach-generic/es7000.c b/arch/i386/mach-generic/es7000.c index 845cdd0b3593..aa144d82334d 100644 --- a/arch/i386/mach-generic/es7000.c +++ b/arch/i386/mach-generic/es7000.c @@ -4,6 +4,7 @@ #define APIC_DEFINITION 1 #include #include +#include #include #include #include diff --git a/arch/i386/mach-generic/probe.c b/arch/i386/mach-generic/probe.c index bcd1bcfaa723..793d1b473251 100644 --- a/arch/i386/mach-generic/probe.c +++ b/arch/i386/mach-generic/probe.c @@ -119,7 +119,9 @@ int __init acpi_madt_oem_check(char *oem_id, char *oem_table_id) return 0; } +#ifdef CONFIG_SMP int hard_smp_processor_id(void) { return genapic->get_apic_id(*(unsigned long *)(APIC_BASE+APIC_ID)); } +#endif diff --git a/arch/i386/mach-generic/summit.c b/arch/i386/mach-generic/summit.c index b73501ddd653..f7e5d66648dc 100644 --- a/arch/i386/mach-generic/summit.c +++ b/arch/i386/mach-generic/summit.c @@ -4,6 +4,7 @@ #define APIC_DEFINITION 1 #include #include +#include #include #include #include diff --git a/include/asm-i386/genapic.h b/include/asm-i386/genapic.h index b3783a32abee..8ffbb0f07457 100644 --- a/include/asm-i386/genapic.h +++ b/include/asm-i386/genapic.h @@ -1,6 +1,8 @@ #ifndef _ASM_GENAPIC_H #define _ASM_GENAPIC_H 1 +#include + /* * Generic APIC driver interface. * @@ -63,14 +65,25 @@ struct genapic { unsigned (*get_apic_id)(unsigned long x); unsigned long apic_id_mask; unsigned int (*cpu_mask_to_apicid)(cpumask_t cpumask); - + +#ifdef CONFIG_SMP /* ipi */ void (*send_IPI_mask)(cpumask_t mask, int vector); void (*send_IPI_allbutself)(int vector); void (*send_IPI_all)(int vector); +#endif }; -#define APICFUNC(x) .x = x +#define APICFUNC(x) .x = x, + +/* More functions could be probably marked IPIFUNC and save some space + in UP GENERICARCH kernels, but I don't have the nerve right now + to untangle this mess. -AK */ +#ifdef CONFIG_SMP +#define IPIFUNC(x) APICFUNC(x) +#else +#define IPIFUNC(x) +#endif #define APIC_INIT(aname, aprobe) { \ .name = aname, \ @@ -80,33 +93,33 @@ struct genapic { .no_balance_irq = NO_BALANCE_IRQ, \ .ESR_DISABLE = esr_disable, \ .apic_destination_logical = APIC_DEST_LOGICAL, \ - APICFUNC(apic_id_registered), \ - APICFUNC(target_cpus), \ - APICFUNC(check_apicid_used), \ - APICFUNC(check_apicid_present), \ - APICFUNC(init_apic_ldr), \ - APICFUNC(ioapic_phys_id_map), \ - APICFUNC(clustered_apic_check), \ - APICFUNC(multi_timer_check), \ - APICFUNC(apicid_to_node), \ - APICFUNC(cpu_to_logical_apicid), \ - APICFUNC(cpu_present_to_apicid), \ - APICFUNC(apicid_to_cpu_present), \ - APICFUNC(mpc_apic_id), \ - APICFUNC(setup_portio_remap), \ - APICFUNC(check_phys_apicid_present), \ - APICFUNC(mpc_oem_bus_info), \ - APICFUNC(mpc_oem_pci_bus), \ - APICFUNC(mps_oem_check), \ - APICFUNC(get_apic_id), \ + APICFUNC(apic_id_registered) \ + APICFUNC(target_cpus) \ + APICFUNC(check_apicid_used) \ + APICFUNC(check_apicid_present) \ + APICFUNC(init_apic_ldr) \ + APICFUNC(ioapic_phys_id_map) \ + APICFUNC(clustered_apic_check) \ + APICFUNC(multi_timer_check) \ + APICFUNC(apicid_to_node) \ + APICFUNC(cpu_to_logical_apicid) \ + APICFUNC(cpu_present_to_apicid) \ + APICFUNC(apicid_to_cpu_present) \ + APICFUNC(mpc_apic_id) \ + APICFUNC(setup_portio_remap) \ + APICFUNC(check_phys_apicid_present) \ + APICFUNC(mpc_oem_bus_info) \ + APICFUNC(mpc_oem_pci_bus) \ + APICFUNC(mps_oem_check) \ + APICFUNC(get_apic_id) \ .apic_id_mask = APIC_ID_MASK, \ - APICFUNC(cpu_mask_to_apicid), \ - APICFUNC(acpi_madt_oem_check), \ - APICFUNC(send_IPI_mask), \ - APICFUNC(send_IPI_allbutself), \ - APICFUNC(send_IPI_all), \ - APICFUNC(enable_apic_mode), \ - APICFUNC(phys_pkg_id), \ + APICFUNC(cpu_mask_to_apicid) \ + APICFUNC(acpi_madt_oem_check) \ + IPIFUNC(send_IPI_mask) \ + IPIFUNC(send_IPI_allbutself) \ + IPIFUNC(send_IPI_all) \ + APICFUNC(enable_apic_mode) \ + APICFUNC(phys_pkg_id) \ } extern struct genapic *genapic; diff --git a/include/asm-i386/mach-es7000/mach_apic.h b/include/asm-i386/mach-es7000/mach_apic.h index b5f3f0d0b2bc..26333685a7fb 100644 --- a/include/asm-i386/mach-es7000/mach_apic.h +++ b/include/asm-i386/mach-es7000/mach_apic.h @@ -123,9 +123,13 @@ extern u8 cpu_2_logical_apicid[]; /* Mapping from cpu number to logical apicid */ static inline int cpu_to_logical_apicid(int cpu) { +#ifdef CONFIG_SMP if (cpu >= NR_CPUS) return BAD_APICID; return (int)cpu_2_logical_apicid[cpu]; +#else + return logical_smp_processor_id(); +#endif } static inline int mpc_apic_id(struct mpc_config_processor *m, struct mpc_config_translation *unused) diff --git a/include/asm-i386/mach-summit/mach_apic.h b/include/asm-i386/mach-summit/mach_apic.h index 9fd073286289..a81b05961595 100644 --- a/include/asm-i386/mach-summit/mach_apic.h +++ b/include/asm-i386/mach-summit/mach_apic.h @@ -46,10 +46,12 @@ extern u8 cpu_2_logical_apicid[]; static inline void init_apic_ldr(void) { unsigned long val, id; - int i, count; - u8 lid; + int count = 0; u8 my_id = (u8)hard_smp_processor_id(); u8 my_cluster = (u8)apicid_cluster(my_id); +#ifdef CONFIG_SMP + u8 lid; + int i; /* Create logical APIC IDs by counting CPUs already in cluster. */ for (count = 0, i = NR_CPUS; --i >= 0; ) { @@ -57,6 +59,7 @@ static inline void init_apic_ldr(void) if (lid != BAD_APICID && apicid_cluster(lid) == my_cluster) ++count; } +#endif /* We only have a 4 wide bitmap in cluster mode. If a deranged * BIOS puts 5 CPUs in one APIC cluster, we're hosed. */ BUG_ON(count >= XAPIC_DEST_CPUS_SHIFT); @@ -91,9 +94,13 @@ static inline int apicid_to_node(int logical_apicid) /* Mapping from cpu number to logical apicid */ static inline int cpu_to_logical_apicid(int cpu) { +#ifdef CONFIG_SMP if (cpu >= NR_CPUS) return BAD_APICID; return (int)cpu_2_logical_apicid[cpu]; +#else + return logical_smp_processor_id(); +#endif } static inline int cpu_present_to_apicid(int mps_cpu) diff --git a/include/asm-i386/smp.h b/include/asm-i386/smp.h index 142d10e34ade..f87826039a51 100644 --- a/include/asm-i386/smp.h +++ b/include/asm-i386/smp.h @@ -80,17 +80,11 @@ static inline int hard_smp_processor_id(void) return GET_APIC_ID(*(unsigned long *)(APIC_BASE+APIC_ID)); } #endif - -static __inline int logical_smp_processor_id(void) -{ - /* we don't want to mark this access volatile - bad code generation */ - return GET_APIC_LOGICAL_ID(*(unsigned long *)(APIC_BASE+APIC_LDR)); -} - #endif extern int __cpu_disable(void); extern void __cpu_die(unsigned int cpu); + #endif /* !__ASSEMBLY__ */ #else /* CONFIG_SMP */ @@ -100,4 +94,15 @@ extern void __cpu_die(unsigned int cpu); #define NO_PROC_ID 0xFF /* No processor magic marker */ #endif + +#ifndef __ASSEMBLY__ +#ifdef CONFIG_X86_LOCAL_APIC +static __inline int logical_smp_processor_id(void) +{ + /* we don't want to mark this access volatile - bad code generation */ + return GET_APIC_LOGICAL_ID(*(unsigned long *)(APIC_BASE+APIC_LDR)); +} +#endif +#endif + #endif -- cgit v1.2.3 From b07f8915cda3fcd73b8b68075ba1e6cd0673365d Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Tue, 26 Sep 2006 10:52:26 +0200 Subject: [PATCH] x86: Temporarily revert parts of the Core 2 nmi nmi watchdog support This makes merging easier. They are readded a few patches later. Signed-off-by: Andi Kleen --- arch/i386/kernel/nmi.c | 65 +------------------------- arch/x86_64/kernel/nmi.c | 81 ++------------------------------- include/asm-i386/intel_arch_perfmon.h | 19 -------- include/asm-x86_64/intel_arch_perfmon.h | 19 -------- 4 files changed, 6 insertions(+), 178 deletions(-) delete mode 100644 include/asm-i386/intel_arch_perfmon.h delete mode 100644 include/asm-x86_64/intel_arch_perfmon.h (limited to 'include') diff --git a/arch/i386/kernel/nmi.c b/arch/i386/kernel/nmi.c index acb351478e42..1282d70ff971 100644 --- a/arch/i386/kernel/nmi.c +++ b/arch/i386/kernel/nmi.c @@ -24,7 +24,6 @@ #include #include -#include #include "mach_traps.h" @@ -96,9 +95,6 @@ int nmi_active; (P4_CCCR_OVF_PMI0|P4_CCCR_THRESHOLD(15)|P4_CCCR_COMPLEMENT| \ P4_CCCR_COMPARE|P4_CCCR_REQUIRED|P4_CCCR_ESCR_SELECT(4)|P4_CCCR_ENABLE) -#define ARCH_PERFMON_NMI_EVENT_SEL ARCH_PERFMON_UNHALTED_CORE_CYCLES_SEL -#define ARCH_PERFMON_NMI_EVENT_UMASK ARCH_PERFMON_UNHALTED_CORE_CYCLES_UMASK - #ifdef CONFIG_SMP /* The performance counters used by NMI_LOCAL_APIC don't trigger when * the CPU is idle. To make sure the NMI watchdog really ticks on all @@ -211,8 +207,6 @@ static int __init setup_nmi_watchdog(char *str) __setup("nmi_watchdog=", setup_nmi_watchdog); -static void disable_intel_arch_watchdog(void); - static void disable_lapic_nmi_watchdog(void) { if (nmi_active <= 0) @@ -222,10 +216,6 @@ static void disable_lapic_nmi_watchdog(void) wrmsr(MSR_K7_EVNTSEL0, 0, 0); break; case X86_VENDOR_INTEL: - if (cpu_has(&boot_cpu_data, X86_FEATURE_ARCH_PERFMON)) { - disable_intel_arch_watchdog(); - break; - } switch (boot_cpu_data.x86) { case 6: if (boot_cpu_data.x86_model > 0xd) @@ -454,53 +444,6 @@ static int setup_p4_watchdog(void) return 1; } -static void disable_intel_arch_watchdog(void) -{ - unsigned ebx; - - /* - * Check whether the Architectural PerfMon supports - * Unhalted Core Cycles Event or not. - * NOTE: Corresponding bit = 0 in ebp indicates event present. - */ - ebx = cpuid_ebx(10); - if (!(ebx & ARCH_PERFMON_UNHALTED_CORE_CYCLES_PRESENT)) - wrmsr(MSR_ARCH_PERFMON_EVENTSEL0, 0, 0); -} - -static int setup_intel_arch_watchdog(void) -{ - unsigned int evntsel; - unsigned ebx; - - /* - * Check whether the Architectural PerfMon supports - * Unhalted Core Cycles Event or not. - * NOTE: Corresponding bit = 0 in ebp indicates event present. - */ - ebx = cpuid_ebx(10); - if ((ebx & ARCH_PERFMON_UNHALTED_CORE_CYCLES_PRESENT)) - return 0; - - nmi_perfctr_msr = MSR_ARCH_PERFMON_PERFCTR0; - - clear_msr_range(MSR_ARCH_PERFMON_EVENTSEL0, 2); - clear_msr_range(MSR_ARCH_PERFMON_PERFCTR0, 2); - - evntsel = ARCH_PERFMON_EVENTSEL_INT - | ARCH_PERFMON_EVENTSEL_OS - | ARCH_PERFMON_EVENTSEL_USR - | ARCH_PERFMON_NMI_EVENT_SEL - | ARCH_PERFMON_NMI_EVENT_UMASK; - - wrmsr(MSR_ARCH_PERFMON_EVENTSEL0, evntsel, 0); - write_watchdog_counter("INTEL_ARCH_PERFCTR0"); - apic_write(APIC_LVTPC, APIC_DM_NMI); - evntsel |= ARCH_PERFMON_EVENTSEL0_ENABLE; - wrmsr(MSR_ARCH_PERFMON_EVENTSEL0, evntsel, 0); - return 1; -} - void setup_apic_nmi_watchdog (void) { switch (boot_cpu_data.x86_vendor) { @@ -510,11 +453,6 @@ void setup_apic_nmi_watchdog (void) setup_k7_watchdog(); break; case X86_VENDOR_INTEL: - if (cpu_has(&boot_cpu_data, X86_FEATURE_ARCH_PERFMON)) { - if (!setup_intel_arch_watchdog()) - return; - break; - } switch (boot_cpu_data.x86) { case 6: if (boot_cpu_data.x86_model > 0xd) @@ -619,8 +557,7 @@ void nmi_watchdog_tick (struct pt_regs * regs) wrmsr(MSR_P4_IQ_CCCR0, nmi_p4_cccr_val, 0); apic_write(APIC_LVTPC, APIC_DM_NMI); } - else if (nmi_perfctr_msr == MSR_P6_PERFCTR0 || - nmi_perfctr_msr == MSR_ARCH_PERFMON_PERFCTR0) { + else if (nmi_perfctr_msr == MSR_P6_PERFCTR0) { /* Only P6 based Pentium M need to re-unmask * the apic vector but it doesn't hurt * other P6 variant */ diff --git a/arch/x86_64/kernel/nmi.c b/arch/x86_64/kernel/nmi.c index 5baa0c726e97..42c05d6907b9 100644 --- a/arch/x86_64/kernel/nmi.c +++ b/arch/x86_64/kernel/nmi.c @@ -26,7 +26,6 @@ #include #include #include -#include /* * lapic_nmi_owner tracks the ownership of the lapic NMI hardware: @@ -66,9 +65,6 @@ static unsigned int nmi_p4_cccr_val; #define K7_EVENT_CYCLES_PROCESSOR_IS_RUNNING 0x76 #define K7_NMI_EVENT K7_EVENT_CYCLES_PROCESSOR_IS_RUNNING -#define ARCH_PERFMON_NMI_EVENT_SEL ARCH_PERFMON_UNHALTED_CORE_CYCLES_SEL -#define ARCH_PERFMON_NMI_EVENT_UMASK ARCH_PERFMON_UNHALTED_CORE_CYCLES_UMASK - #define MSR_P4_MISC_ENABLE 0x1A0 #define MSR_P4_MISC_ENABLE_PERF_AVAIL (1<<7) #define MSR_P4_MISC_ENABLE_PEBS_UNAVAIL (1<<12) @@ -100,10 +96,7 @@ static __cpuinit inline int nmi_known_cpu(void) case X86_VENDOR_AMD: return boot_cpu_data.x86 == 15; case X86_VENDOR_INTEL: - if (cpu_has(&boot_cpu_data, X86_FEATURE_ARCH_PERFMON)) - return 1; - else - return (boot_cpu_data.x86 == 15); + return boot_cpu_data.x86 == 15; } return 0; } @@ -209,8 +202,6 @@ int __init setup_nmi_watchdog(char *str) __setup("nmi_watchdog=", setup_nmi_watchdog); -static void disable_intel_arch_watchdog(void); - static void disable_lapic_nmi_watchdog(void) { if (nmi_active <= 0) @@ -223,8 +214,6 @@ static void disable_lapic_nmi_watchdog(void) if (boot_cpu_data.x86 == 15) { wrmsr(MSR_P4_IQ_CCCR0, 0, 0); wrmsr(MSR_P4_CRU_ESCR0, 0, 0); - } else if (cpu_has(&boot_cpu_data, X86_FEATURE_ARCH_PERFMON)) { - disable_intel_arch_watchdog(); } break; } @@ -377,53 +366,6 @@ static void setup_k7_watchdog(void) wrmsr(MSR_K7_EVNTSEL0, evntsel, 0); } -static void disable_intel_arch_watchdog(void) -{ - unsigned ebx; - - /* - * Check whether the Architectural PerfMon supports - * Unhalted Core Cycles Event or not. - * NOTE: Corresponding bit = 0 in ebp indicates event present. - */ - ebx = cpuid_ebx(10); - if (!(ebx & ARCH_PERFMON_UNHALTED_CORE_CYCLES_PRESENT)) - wrmsr(MSR_ARCH_PERFMON_EVENTSEL0, 0, 0); -} - -static int setup_intel_arch_watchdog(void) -{ - unsigned int evntsel; - unsigned ebx; - - /* - * Check whether the Architectural PerfMon supports - * Unhalted Core Cycles Event or not. - * NOTE: Corresponding bit = 0 in ebp indicates event present. - */ - ebx = cpuid_ebx(10); - if ((ebx & ARCH_PERFMON_UNHALTED_CORE_CYCLES_PRESENT)) - return 0; - - nmi_perfctr_msr = MSR_ARCH_PERFMON_PERFCTR0; - - clear_msr_range(MSR_ARCH_PERFMON_EVENTSEL0, 2); - clear_msr_range(MSR_ARCH_PERFMON_PERFCTR0, 2); - - evntsel = ARCH_PERFMON_EVENTSEL_INT - | ARCH_PERFMON_EVENTSEL_OS - | ARCH_PERFMON_EVENTSEL_USR - | ARCH_PERFMON_NMI_EVENT_SEL - | ARCH_PERFMON_NMI_EVENT_UMASK; - - wrmsr(MSR_ARCH_PERFMON_EVENTSEL0, evntsel, 0); - wrmsrl(MSR_ARCH_PERFMON_PERFCTR0, -((u64)cpu_khz * 1000 / nmi_hz)); - apic_write(APIC_LVTPC, APIC_DM_NMI); - evntsel |= ARCH_PERFMON_EVENTSEL0_ENABLE; - wrmsr(MSR_ARCH_PERFMON_EVENTSEL0, evntsel, 0); - return 1; -} - static int setup_p4_watchdog(void) { @@ -477,16 +419,10 @@ void setup_apic_nmi_watchdog(void) setup_k7_watchdog(); break; case X86_VENDOR_INTEL: - if (cpu_has(&boot_cpu_data, X86_FEATURE_ARCH_PERFMON)) { - if (!setup_intel_arch_watchdog()) - return; - } else if (boot_cpu_data.x86 == 15) { - if (!setup_p4_watchdog()) - return; - } else { + if (boot_cpu_data.x86 != 15) + return; + if (!setup_p4_watchdog()) return; - } - break; default: @@ -571,14 +507,7 @@ void __kprobes nmi_watchdog_tick(struct pt_regs * regs, unsigned reason) */ wrmsr(MSR_P4_IQ_CCCR0, nmi_p4_cccr_val, 0); apic_write(APIC_LVTPC, APIC_DM_NMI); - } else if (nmi_perfctr_msr == MSR_ARCH_PERFMON_PERFCTR0) { - /* - * For Intel based architectural perfmon - * - LVTPC is masked on interrupt and must be - * unmasked by the LVTPC handler. - */ - apic_write(APIC_LVTPC, APIC_DM_NMI); - } + } wrmsrl(nmi_perfctr_msr, -((u64)cpu_khz * 1000 / nmi_hz)); } } diff --git a/include/asm-i386/intel_arch_perfmon.h b/include/asm-i386/intel_arch_perfmon.h deleted file mode 100644 index 134ea9cc5283..000000000000 --- a/include/asm-i386/intel_arch_perfmon.h +++ /dev/null @@ -1,19 +0,0 @@ -#ifndef X86_INTEL_ARCH_PERFMON_H -#define X86_INTEL_ARCH_PERFMON_H 1 - -#define MSR_ARCH_PERFMON_PERFCTR0 0xc1 -#define MSR_ARCH_PERFMON_PERFCTR1 0xc2 - -#define MSR_ARCH_PERFMON_EVENTSEL0 0x186 -#define MSR_ARCH_PERFMON_EVENTSEL1 0x187 - -#define ARCH_PERFMON_EVENTSEL0_ENABLE (1 << 22) -#define ARCH_PERFMON_EVENTSEL_INT (1 << 20) -#define ARCH_PERFMON_EVENTSEL_OS (1 << 17) -#define ARCH_PERFMON_EVENTSEL_USR (1 << 16) - -#define ARCH_PERFMON_UNHALTED_CORE_CYCLES_SEL (0x3c) -#define ARCH_PERFMON_UNHALTED_CORE_CYCLES_UMASK (0x00 << 8) -#define ARCH_PERFMON_UNHALTED_CORE_CYCLES_PRESENT (1 << 0) - -#endif /* X86_INTEL_ARCH_PERFMON_H */ diff --git a/include/asm-x86_64/intel_arch_perfmon.h b/include/asm-x86_64/intel_arch_perfmon.h deleted file mode 100644 index 59c396431569..000000000000 --- a/include/asm-x86_64/intel_arch_perfmon.h +++ /dev/null @@ -1,19 +0,0 @@ -#ifndef X86_64_INTEL_ARCH_PERFMON_H -#define X86_64_INTEL_ARCH_PERFMON_H 1 - -#define MSR_ARCH_PERFMON_PERFCTR0 0xc1 -#define MSR_ARCH_PERFMON_PERFCTR1 0xc2 - -#define MSR_ARCH_PERFMON_EVENTSEL0 0x186 -#define MSR_ARCH_PERFMON_EVENTSEL1 0x187 - -#define ARCH_PERFMON_EVENTSEL0_ENABLE (1 << 22) -#define ARCH_PERFMON_EVENTSEL_INT (1 << 20) -#define ARCH_PERFMON_EVENTSEL_OS (1 << 17) -#define ARCH_PERFMON_EVENTSEL_USR (1 << 16) - -#define ARCH_PERFMON_UNHALTED_CORE_CYCLES_SEL (0x3c) -#define ARCH_PERFMON_UNHALTED_CORE_CYCLES_UMASK (0x00 << 8) -#define ARCH_PERFMON_UNHALTED_CORE_CYCLES_PRESENT (1 << 0) - -#endif /* X86_64_INTEL_ARCH_PERFMON_H */ -- cgit v1.2.3 From 828f0afda123a96ff4e8078f057a302f4b4232ae Mon Sep 17 00:00:00 2001 From: Don Zickus Date: Tue, 26 Sep 2006 10:52:26 +0200 Subject: [PATCH] x86: Add performance counter reservation framework for UP kernels Adds basic infrastructure to allow subsystems to reserve performance counters on the x86 chips. Only UP kernels are supported in this patch to make reviewing easier. The SMP portion makes a lot more changes. Think of this as a locking mechanism where each bit represents a different counter. In addition, each subsystem should also reserve an appropriate event selection register that will correspond to the performance counter it will be using (this is mainly neccessary for the Pentium 4 chips as they break the 1:1 relationship to performance counters). This will help prevent subsystems like oprofile from interfering with the nmi watchdog. Signed-off-by: Don Zickus Signed-off-by: Andi Kleen --- arch/i386/kernel/nmi.c | 188 +++++++++++++++++++++++++++++++++++++++-------- arch/x86_64/kernel/nmi.c | 178 ++++++++++++++++++++++++++++++++++---------- include/asm-i386/nmi.h | 7 ++ include/asm-x86_64/nmi.h | 8 +- 4 files changed, 308 insertions(+), 73 deletions(-) (limited to 'include') diff --git a/arch/i386/kernel/nmi.c b/arch/i386/kernel/nmi.c index 1282d70ff971..5d58dfeacd59 100644 --- a/arch/i386/kernel/nmi.c +++ b/arch/i386/kernel/nmi.c @@ -34,6 +34,20 @@ static unsigned int nmi_perfctr_msr; /* the MSR to reset in NMI handler */ static unsigned int nmi_p4_cccr_val; extern void show_registers(struct pt_regs *regs); +/* perfctr_nmi_owner tracks the ownership of the perfctr registers: + * evtsel_nmi_owner tracks the ownership of the event selection + * - different performance counters/ event selection may be reserved for + * different subsystems this reservation system just tries to coordinate + * things a little + */ +static DEFINE_PER_CPU(unsigned long, perfctr_nmi_owner); +static DEFINE_PER_CPU(unsigned long, evntsel_nmi_owner[3]); + +/* this number is calculated from Intel's MSR_P4_CRU_ESCR5 register and it's + * offset from MSR_P4_BSU_ESCR0. It will be the max for all platforms (for now) + */ +#define NMI_MAX_COUNTER_BITS 66 + /* * lapic_nmi_owner tracks the ownership of the lapic NMI hardware: * - it may be reserved by some other driver, or not @@ -95,6 +109,105 @@ int nmi_active; (P4_CCCR_OVF_PMI0|P4_CCCR_THRESHOLD(15)|P4_CCCR_COMPLEMENT| \ P4_CCCR_COMPARE|P4_CCCR_REQUIRED|P4_CCCR_ESCR_SELECT(4)|P4_CCCR_ENABLE) +/* converts an msr to an appropriate reservation bit */ +static inline unsigned int nmi_perfctr_msr_to_bit(unsigned int msr) +{ + /* returns the bit offset of the performance counter register */ + switch (boot_cpu_data.x86_vendor) { + case X86_VENDOR_AMD: + return (msr - MSR_K7_PERFCTR0); + case X86_VENDOR_INTEL: + switch (boot_cpu_data.x86) { + case 6: + return (msr - MSR_P6_PERFCTR0); + case 15: + return (msr - MSR_P4_BPU_PERFCTR0); + } + } + return 0; +} + +/* converts an msr to an appropriate reservation bit */ +static inline unsigned int nmi_evntsel_msr_to_bit(unsigned int msr) +{ + /* returns the bit offset of the event selection register */ + switch (boot_cpu_data.x86_vendor) { + case X86_VENDOR_AMD: + return (msr - MSR_K7_EVNTSEL0); + case X86_VENDOR_INTEL: + switch (boot_cpu_data.x86) { + case 6: + return (msr - MSR_P6_EVNTSEL0); + case 15: + return (msr - MSR_P4_BSU_ESCR0); + } + } + return 0; +} + +/* checks for a bit availability (hack for oprofile) */ +int avail_to_resrv_perfctr_nmi_bit(unsigned int counter) +{ + BUG_ON(counter > NMI_MAX_COUNTER_BITS); + + return (!test_bit(counter, &__get_cpu_var(perfctr_nmi_owner))); +} + +/* checks the an msr for availability */ +int avail_to_resrv_perfctr_nmi(unsigned int msr) +{ + unsigned int counter; + + counter = nmi_perfctr_msr_to_bit(msr); + BUG_ON(counter > NMI_MAX_COUNTER_BITS); + + return (!test_bit(counter, &__get_cpu_var(perfctr_nmi_owner))); +} + +int reserve_perfctr_nmi(unsigned int msr) +{ + unsigned int counter; + + counter = nmi_perfctr_msr_to_bit(msr); + BUG_ON(counter > NMI_MAX_COUNTER_BITS); + + if (!test_and_set_bit(counter, &__get_cpu_var(perfctr_nmi_owner))) + return 1; + return 0; +} + +void release_perfctr_nmi(unsigned int msr) +{ + unsigned int counter; + + counter = nmi_perfctr_msr_to_bit(msr); + BUG_ON(counter > NMI_MAX_COUNTER_BITS); + + clear_bit(counter, &__get_cpu_var(perfctr_nmi_owner)); +} + +int reserve_evntsel_nmi(unsigned int msr) +{ + unsigned int counter; + + counter = nmi_evntsel_msr_to_bit(msr); + BUG_ON(counter > NMI_MAX_COUNTER_BITS); + + if (!test_and_set_bit(counter, &__get_cpu_var(evntsel_nmi_owner)[0])) + return 1; + return 0; +} + +void release_evntsel_nmi(unsigned int msr) +{ + unsigned int counter; + + counter = nmi_evntsel_msr_to_bit(msr); + BUG_ON(counter > NMI_MAX_COUNTER_BITS); + + clear_bit(counter, &__get_cpu_var(evntsel_nmi_owner)[0]); +} + #ifdef CONFIG_SMP /* The performance counters used by NMI_LOCAL_APIC don't trigger when * the CPU is idle. To make sure the NMI watchdog really ticks on all @@ -344,14 +457,6 @@ late_initcall(init_lapic_nmi_sysfs); * Original code written by Keith Owens. */ -static void clear_msr_range(unsigned int base, unsigned int n) -{ - unsigned int i; - - for(i = 0; i < n; ++i) - wrmsr(base+i, 0, 0); -} - static void write_watchdog_counter(const char *descr) { u64 count = (u64)cpu_khz * 1000; @@ -362,14 +467,19 @@ static void write_watchdog_counter(const char *descr) wrmsrl(nmi_perfctr_msr, 0 - count); } -static void setup_k7_watchdog(void) +static int setup_k7_watchdog(void) { unsigned int evntsel; nmi_perfctr_msr = MSR_K7_PERFCTR0; - clear_msr_range(MSR_K7_EVNTSEL0, 4); - clear_msr_range(MSR_K7_PERFCTR0, 4); + if (!reserve_perfctr_nmi(nmi_perfctr_msr)) + goto fail; + + if (!reserve_evntsel_nmi(MSR_K7_EVNTSEL0)) + goto fail1; + + wrmsrl(MSR_K7_PERFCTR0, 0UL); evntsel = K7_EVNTSEL_INT | K7_EVNTSEL_OS @@ -381,16 +491,24 @@ static void setup_k7_watchdog(void) apic_write(APIC_LVTPC, APIC_DM_NMI); evntsel |= K7_EVNTSEL_ENABLE; wrmsr(MSR_K7_EVNTSEL0, evntsel, 0); + return 1; +fail1: + release_perfctr_nmi(nmi_perfctr_msr); +fail: + return 0; } -static void setup_p6_watchdog(void) +static int setup_p6_watchdog(void) { unsigned int evntsel; nmi_perfctr_msr = MSR_P6_PERFCTR0; - clear_msr_range(MSR_P6_EVNTSEL0, 2); - clear_msr_range(MSR_P6_PERFCTR0, 2); + if (!reserve_perfctr_nmi(nmi_perfctr_msr)) + goto fail; + + if (!reserve_evntsel_nmi(MSR_P6_EVNTSEL0)) + goto fail1; evntsel = P6_EVNTSEL_INT | P6_EVNTSEL_OS @@ -402,6 +520,11 @@ static void setup_p6_watchdog(void) apic_write(APIC_LVTPC, APIC_DM_NMI); evntsel |= P6_EVNTSEL0_ENABLE; wrmsr(MSR_P6_EVNTSEL0, evntsel, 0); + return 1; +fail1: + release_perfctr_nmi(nmi_perfctr_msr); +fail: + return 0; } static int setup_p4_watchdog(void) @@ -419,22 +542,11 @@ static int setup_p4_watchdog(void) nmi_p4_cccr_val |= P4_CCCR_OVF_PMI1; #endif - if (!(misc_enable & MSR_P4_MISC_ENABLE_PEBS_UNAVAIL)) - clear_msr_range(0x3F1, 2); - /* MSR 0x3F0 seems to have a default value of 0xFC00, but current - docs doesn't fully define it, so leave it alone for now. */ - if (boot_cpu_data.x86_model >= 0x3) { - /* MSR_P4_IQ_ESCR0/1 (0x3ba/0x3bb) removed */ - clear_msr_range(0x3A0, 26); - clear_msr_range(0x3BC, 3); - } else { - clear_msr_range(0x3A0, 31); - } - clear_msr_range(0x3C0, 6); - clear_msr_range(0x3C8, 6); - clear_msr_range(0x3E0, 2); - clear_msr_range(MSR_P4_CCCR0, 18); - clear_msr_range(MSR_P4_PERFCTR0, 18); + if (!reserve_perfctr_nmi(nmi_perfctr_msr)) + goto fail; + + if (!reserve_evntsel_nmi(MSR_P4_CRU_ESCR0)) + goto fail1; wrmsr(MSR_P4_CRU_ESCR0, P4_NMI_CRU_ESCR0, 0); wrmsr(MSR_P4_IQ_CCCR0, P4_NMI_IQ_CCCR0 & ~P4_CCCR_ENABLE, 0); @@ -442,6 +554,10 @@ static int setup_p4_watchdog(void) apic_write(APIC_LVTPC, APIC_DM_NMI); wrmsr(MSR_P4_IQ_CCCR0, nmi_p4_cccr_val, 0); return 1; +fail1: + release_perfctr_nmi(nmi_perfctr_msr); +fail: + return 0; } void setup_apic_nmi_watchdog (void) @@ -450,7 +566,8 @@ void setup_apic_nmi_watchdog (void) case X86_VENDOR_AMD: if (boot_cpu_data.x86 != 6 && boot_cpu_data.x86 != 15) return; - setup_k7_watchdog(); + if (!setup_k7_watchdog()) + return; break; case X86_VENDOR_INTEL: switch (boot_cpu_data.x86) { @@ -458,7 +575,8 @@ void setup_apic_nmi_watchdog (void) if (boot_cpu_data.x86_model > 0xd) return; - setup_p6_watchdog(); + if(!setup_p6_watchdog()) + return; break; case 15: if (boot_cpu_data.x86_model > 0x4) @@ -612,6 +730,12 @@ int proc_unknown_nmi_panic(ctl_table *table, int write, struct file *file, EXPORT_SYMBOL(nmi_active); EXPORT_SYMBOL(nmi_watchdog); +EXPORT_SYMBOL(avail_to_resrv_perfctr_nmi); +EXPORT_SYMBOL(avail_to_resrv_perfctr_nmi_bit); +EXPORT_SYMBOL(reserve_perfctr_nmi); +EXPORT_SYMBOL(release_perfctr_nmi); +EXPORT_SYMBOL(reserve_evntsel_nmi); +EXPORT_SYMBOL(release_evntsel_nmi); EXPORT_SYMBOL(reserve_lapic_nmi); EXPORT_SYMBOL(release_lapic_nmi); EXPORT_SYMBOL(disable_timer_nmi_watchdog); diff --git a/arch/x86_64/kernel/nmi.c b/arch/x86_64/kernel/nmi.c index 42c05d6907b9..b7a7c9973849 100644 --- a/arch/x86_64/kernel/nmi.c +++ b/arch/x86_64/kernel/nmi.c @@ -27,6 +27,20 @@ #include #include +/* perfctr_nmi_owner tracks the ownership of the perfctr registers: + * evtsel_nmi_owner tracks the ownership of the event selection + * - different performance counters/ event selection may be reserved for + * different subsystems this reservation system just tries to coordinate + * things a little + */ +static DEFINE_PER_CPU(unsigned, perfctr_nmi_owner); +static DEFINE_PER_CPU(unsigned, evntsel_nmi_owner[2]); + +/* this number is calculated from Intel's MSR_P4_CRU_ESCR5 register and it's + * offset from MSR_P4_BSU_ESCR0. It will be the max for all platforms (for now) + */ +#define NMI_MAX_COUNTER_BITS 66 + /* * lapic_nmi_owner tracks the ownership of the lapic NMI hardware: * - it may be reserved by some other driver, or not @@ -90,6 +104,95 @@ static unsigned int nmi_p4_cccr_val; (P4_CCCR_OVF_PMI0|P4_CCCR_THRESHOLD(15)|P4_CCCR_COMPLEMENT| \ P4_CCCR_COMPARE|P4_CCCR_REQUIRED|P4_CCCR_ESCR_SELECT(4)|P4_CCCR_ENABLE) +/* converts an msr to an appropriate reservation bit */ +static inline unsigned int nmi_perfctr_msr_to_bit(unsigned int msr) +{ + /* returns the bit offset of the performance counter register */ + switch (boot_cpu_data.x86_vendor) { + case X86_VENDOR_AMD: + return (msr - MSR_K7_PERFCTR0); + case X86_VENDOR_INTEL: + return (msr - MSR_P4_BPU_PERFCTR0); + } + return 0; +} + +/* converts an msr to an appropriate reservation bit */ +static inline unsigned int nmi_evntsel_msr_to_bit(unsigned int msr) +{ + /* returns the bit offset of the event selection register */ + switch (boot_cpu_data.x86_vendor) { + case X86_VENDOR_AMD: + return (msr - MSR_K7_EVNTSEL0); + case X86_VENDOR_INTEL: + return (msr - MSR_P4_BSU_ESCR0); + } + return 0; +} + +/* checks for a bit availability (hack for oprofile) */ +int avail_to_resrv_perfctr_nmi_bit(unsigned int counter) +{ + BUG_ON(counter > NMI_MAX_COUNTER_BITS); + + return (!test_bit(counter, &__get_cpu_var(perfctr_nmi_owner))); +} + +/* checks the an msr for availability */ +int avail_to_resrv_perfctr_nmi(unsigned int msr) +{ + unsigned int counter; + + counter = nmi_perfctr_msr_to_bit(msr); + BUG_ON(counter > NMI_MAX_COUNTER_BITS); + + return (!test_bit(counter, &__get_cpu_var(perfctr_nmi_owner))); +} + +int reserve_perfctr_nmi(unsigned int msr) +{ + unsigned int counter; + + counter = nmi_perfctr_msr_to_bit(msr); + BUG_ON(counter > NMI_MAX_COUNTER_BITS); + + if (!test_and_set_bit(counter, &__get_cpu_var(perfctr_nmi_owner))) + return 1; + return 0; +} + +void release_perfctr_nmi(unsigned int msr) +{ + unsigned int counter; + + counter = nmi_perfctr_msr_to_bit(msr); + BUG_ON(counter > NMI_MAX_COUNTER_BITS); + + clear_bit(counter, &__get_cpu_var(perfctr_nmi_owner)); +} + +int reserve_evntsel_nmi(unsigned int msr) +{ + unsigned int counter; + + counter = nmi_evntsel_msr_to_bit(msr); + BUG_ON(counter > NMI_MAX_COUNTER_BITS); + + if (!test_and_set_bit(counter, &__get_cpu_var(evntsel_nmi_owner))) + return 1; + return 0; +} + +void release_evntsel_nmi(unsigned int msr) +{ + unsigned int counter; + + counter = nmi_evntsel_msr_to_bit(msr); + BUG_ON(counter > NMI_MAX_COUNTER_BITS); + + clear_bit(counter, &__get_cpu_var(evntsel_nmi_owner)); +} + static __cpuinit inline int nmi_known_cpu(void) { switch (boot_cpu_data.x86_vendor) { @@ -325,34 +428,22 @@ late_initcall(init_lapic_nmi_sysfs); #endif /* CONFIG_PM */ -/* - * Activate the NMI watchdog via the local APIC. - * Original code written by Keith Owens. - */ - -static void clear_msr_range(unsigned int base, unsigned int n) +static int setup_k7_watchdog(void) { - unsigned int i; - - for(i = 0; i < n; ++i) - wrmsr(base+i, 0, 0); -} - -static void setup_k7_watchdog(void) -{ - int i; unsigned int evntsel; nmi_perfctr_msr = MSR_K7_PERFCTR0; - for(i = 0; i < 4; ++i) { - /* Simulator may not support it */ - if (checking_wrmsrl(MSR_K7_EVNTSEL0+i, 0UL)) { - nmi_perfctr_msr = 0; - return; - } - wrmsrl(MSR_K7_PERFCTR0+i, 0UL); - } + if (!reserve_perfctr_nmi(nmi_perfctr_msr)) + goto fail; + + if (!reserve_evntsel_nmi(MSR_K7_EVNTSEL0)) + goto fail1; + + /* Simulator may not support it */ + if (checking_wrmsrl(MSR_K7_EVNTSEL0, 0UL)) + goto fail2; + wrmsrl(MSR_K7_PERFCTR0, 0UL); evntsel = K7_EVNTSEL_INT | K7_EVNTSEL_OS @@ -364,6 +455,13 @@ static void setup_k7_watchdog(void) apic_write(APIC_LVTPC, APIC_DM_NMI); evntsel |= K7_EVNTSEL_ENABLE; wrmsr(MSR_K7_EVNTSEL0, evntsel, 0); + return 1; +fail2: + release_evntsel_nmi(MSR_K7_EVNTSEL0); +fail1: + release_perfctr_nmi(nmi_perfctr_msr); +fail: + return 0; } @@ -382,22 +480,11 @@ static int setup_p4_watchdog(void) nmi_p4_cccr_val |= P4_CCCR_OVF_PMI1; #endif - if (!(misc_enable & MSR_P4_MISC_ENABLE_PEBS_UNAVAIL)) - clear_msr_range(0x3F1, 2); - /* MSR 0x3F0 seems to have a default value of 0xFC00, but current - docs doesn't fully define it, so leave it alone for now. */ - if (boot_cpu_data.x86_model >= 0x3) { - /* MSR_P4_IQ_ESCR0/1 (0x3ba/0x3bb) removed */ - clear_msr_range(0x3A0, 26); - clear_msr_range(0x3BC, 3); - } else { - clear_msr_range(0x3A0, 31); - } - clear_msr_range(0x3C0, 6); - clear_msr_range(0x3C8, 6); - clear_msr_range(0x3E0, 2); - clear_msr_range(MSR_P4_CCCR0, 18); - clear_msr_range(MSR_P4_PERFCTR0, 18); + if (!reserve_perfctr_nmi(nmi_perfctr_msr)) + goto fail; + + if (!reserve_evntsel_nmi(MSR_P4_CRU_ESCR0)) + goto fail1; wrmsr(MSR_P4_CRU_ESCR0, P4_NMI_CRU_ESCR0, 0); wrmsr(MSR_P4_IQ_CCCR0, P4_NMI_IQ_CCCR0 & ~P4_CCCR_ENABLE, 0); @@ -406,6 +493,10 @@ static int setup_p4_watchdog(void) apic_write(APIC_LVTPC, APIC_DM_NMI); wrmsr(MSR_P4_IQ_CCCR0, nmi_p4_cccr_val, 0); return 1; +fail1: + release_perfctr_nmi(nmi_perfctr_msr); +fail: + return 0; } void setup_apic_nmi_watchdog(void) @@ -416,7 +507,8 @@ void setup_apic_nmi_watchdog(void) return; if (strstr(boot_cpu_data.x86_model_id, "Screwdriver")) return; - setup_k7_watchdog(); + if (!setup_k7_watchdog()) + return; break; case X86_VENDOR_INTEL: if (boot_cpu_data.x86 != 15) @@ -588,6 +680,12 @@ int proc_unknown_nmi_panic(struct ctl_table *table, int write, struct file *file EXPORT_SYMBOL(nmi_active); EXPORT_SYMBOL(nmi_watchdog); +EXPORT_SYMBOL(avail_to_resrv_perfctr_nmi); +EXPORT_SYMBOL(avail_to_resrv_perfctr_nmi_bit); +EXPORT_SYMBOL(reserve_perfctr_nmi); +EXPORT_SYMBOL(release_perfctr_nmi); +EXPORT_SYMBOL(reserve_evntsel_nmi); +EXPORT_SYMBOL(release_evntsel_nmi); EXPORT_SYMBOL(reserve_lapic_nmi); EXPORT_SYMBOL(release_lapic_nmi); EXPORT_SYMBOL(disable_timer_nmi_watchdog); diff --git a/include/asm-i386/nmi.h b/include/asm-i386/nmi.h index 67d994799999..27fc9e6f630e 100644 --- a/include/asm-i386/nmi.h +++ b/include/asm-i386/nmi.h @@ -25,6 +25,13 @@ void set_nmi_callback(nmi_callback_t callback); */ void unset_nmi_callback(void); +extern int avail_to_resrv_perfctr_nmi_bit(unsigned int); +extern int avail_to_resrv_perfctr_nmi(unsigned int); +extern int reserve_perfctr_nmi(unsigned int); +extern void release_perfctr_nmi(unsigned int); +extern int reserve_evntsel_nmi(unsigned int); +extern void release_evntsel_nmi(unsigned int); + extern void setup_apic_nmi_watchdog (void); extern int reserve_lapic_nmi(void); extern void release_lapic_nmi(void); diff --git a/include/asm-x86_64/nmi.h b/include/asm-x86_64/nmi.h index efb45c894d76..62a784cb8f0c 100644 --- a/include/asm-x86_64/nmi.h +++ b/include/asm-x86_64/nmi.h @@ -56,7 +56,13 @@ extern int panic_on_timeout; extern int unknown_nmi_panic; extern int check_nmi_watchdog(void); - +extern int avail_to_resrv_perfctr_nmi_bit(unsigned int); +extern int avail_to_resrv_perfctr_nmi(unsigned int); +extern int reserve_perfctr_nmi(unsigned int); +extern void release_perfctr_nmi(unsigned int); +extern int reserve_evntsel_nmi(unsigned int); +extern void release_evntsel_nmi(unsigned int); + extern void setup_apic_nmi_watchdog (void); extern int reserve_lapic_nmi(void); extern void release_lapic_nmi(void); -- cgit v1.2.3 From f2802e7f571c05f9a901b1f5bd144aa730ccc88e Mon Sep 17 00:00:00 2001 From: Don Zickus Date: Tue, 26 Sep 2006 10:52:26 +0200 Subject: [PATCH] Add SMP support on x86_64 to reservation framework This patch includes the changes to make the nmi watchdog on x86_64 SMP aware. A bunch of code was moved around to make it simpler to read. In addition, it is now possible to determine if a particular NMI was the result of the watchdog or not. This feature allows the kernel to filter out unknown NMIs easier. Signed-off-by: Don Zickus Signed-off-by: Andi Kleen --- arch/x86_64/kernel/apic.c | 3 +- arch/x86_64/kernel/nmi.c | 426 +++++++++++++++++++++++++++++++--------------- include/asm-x86_64/nmi.h | 3 +- 3 files changed, 290 insertions(+), 142 deletions(-) (limited to 'include') diff --git a/arch/x86_64/kernel/apic.c b/arch/x86_64/kernel/apic.c index 2b8cef037a65..692e9b579743 100644 --- a/arch/x86_64/kernel/apic.c +++ b/arch/x86_64/kernel/apic.c @@ -479,8 +479,7 @@ void __cpuinit setup_local_APIC (void) } nmi_watchdog_default(); - if (nmi_watchdog == NMI_LOCAL_APIC) - setup_apic_nmi_watchdog(); + setup_apic_nmi_watchdog(NULL); apic_pm_activate(); } diff --git a/arch/x86_64/kernel/nmi.c b/arch/x86_64/kernel/nmi.c index b7a7c9973849..d42374a952d7 100644 --- a/arch/x86_64/kernel/nmi.c +++ b/arch/x86_64/kernel/nmi.c @@ -56,53 +56,29 @@ static unsigned int lapic_nmi_owner; #define LAPIC_NMI_RESERVED (1<<1) /* nmi_active: - * +1: the lapic NMI watchdog is active, but can be disabled - * 0: the lapic NMI watchdog has not been set up, and cannot + * >0: the lapic NMI watchdog is active, but can be disabled + * <0: the lapic NMI watchdog has not been set up, and cannot * be enabled - * -1: the lapic NMI watchdog is disabled, but can be enabled + * 0: the lapic NMI watchdog is disabled, but can be enabled */ -int nmi_active; /* oprofile uses this */ +atomic_t nmi_active = ATOMIC_INIT(0); /* oprofile uses this */ int panic_on_timeout; unsigned int nmi_watchdog = NMI_DEFAULT; static unsigned int nmi_hz = HZ; -static unsigned int nmi_perfctr_msr; /* the MSR to reset in NMI handler */ -static unsigned int nmi_p4_cccr_val; -/* Note that these events don't tick when the CPU idles. This means - the frequency varies with CPU load. */ - -#define K7_EVNTSEL_ENABLE (1 << 22) -#define K7_EVNTSEL_INT (1 << 20) -#define K7_EVNTSEL_OS (1 << 17) -#define K7_EVNTSEL_USR (1 << 16) -#define K7_EVENT_CYCLES_PROCESSOR_IS_RUNNING 0x76 -#define K7_NMI_EVENT K7_EVENT_CYCLES_PROCESSOR_IS_RUNNING +struct nmi_watchdog_ctlblk { + int enabled; + u64 check_bit; + unsigned int cccr_msr; + unsigned int perfctr_msr; /* the MSR to reset in NMI handler */ + unsigned int evntsel_msr; /* the MSR to select the events to handle */ +}; +static DEFINE_PER_CPU(struct nmi_watchdog_ctlblk, nmi_watchdog_ctlblk); -#define MSR_P4_MISC_ENABLE 0x1A0 -#define MSR_P4_MISC_ENABLE_PERF_AVAIL (1<<7) -#define MSR_P4_MISC_ENABLE_PEBS_UNAVAIL (1<<12) -#define MSR_P4_PERFCTR0 0x300 -#define MSR_P4_CCCR0 0x360 -#define P4_ESCR_EVENT_SELECT(N) ((N)<<25) -#define P4_ESCR_OS (1<<3) -#define P4_ESCR_USR (1<<2) -#define P4_CCCR_OVF_PMI0 (1<<26) -#define P4_CCCR_OVF_PMI1 (1<<27) -#define P4_CCCR_THRESHOLD(N) ((N)<<20) -#define P4_CCCR_COMPLEMENT (1<<19) -#define P4_CCCR_COMPARE (1<<18) -#define P4_CCCR_REQUIRED (3<<16) -#define P4_CCCR_ESCR_SELECT(N) ((N)<<13) -#define P4_CCCR_ENABLE (1<<12) -/* Set up IQ_COUNTER0 to behave like a clock, by having IQ_CCCR0 filter - CRU_ESCR0 (with any non-null event selector) through a complemented - max threshold. [IA32-Vol3, Section 14.9.9] */ -#define MSR_P4_IQ_COUNTER0 0x30C -#define P4_NMI_CRU_ESCR0 (P4_ESCR_EVENT_SELECT(0x3F)|P4_ESCR_OS|P4_ESCR_USR) -#define P4_NMI_IQ_CCCR0 \ - (P4_CCCR_OVF_PMI0|P4_CCCR_THRESHOLD(15)|P4_CCCR_COMPLEMENT| \ - P4_CCCR_COMPARE|P4_CCCR_REQUIRED|P4_CCCR_ESCR_SELECT(4)|P4_CCCR_ENABLE) +/* local prototypes */ +static void stop_apic_nmi_watchdog(void *unused); +static int unknown_nmi_panic_callback(struct pt_regs *regs, int cpu); /* converts an msr to an appropriate reservation bit */ static inline unsigned int nmi_perfctr_msr_to_bit(unsigned int msr) @@ -241,6 +217,12 @@ int __init check_nmi_watchdog (void) int *counts; int cpu; + if ((nmi_watchdog == NMI_NONE) || (nmi_watchdog == NMI_DEFAULT)) + return 0; + + if (!atomic_read(&nmi_active)) + return 0; + counts = kmalloc(NR_CPUS * sizeof(int), GFP_KERNEL); if (!counts) return -1; @@ -258,19 +240,22 @@ int __init check_nmi_watchdog (void) mdelay((10*1000)/nmi_hz); // wait 10 ticks for_each_online_cpu(cpu) { + if (!per_cpu(nmi_watchdog_ctlblk, cpu).enabled) + continue; if (cpu_pda(cpu)->__nmi_count - counts[cpu] <= 5) { - endflag = 1; printk("CPU#%d: NMI appears to be stuck (%d->%d)!\n", cpu, counts[cpu], cpu_pda(cpu)->__nmi_count); - nmi_active = 0; - lapic_nmi_owner &= ~LAPIC_NMI_WATCHDOG; - nmi_perfctr_msr = 0; - kfree(counts); - return -1; + per_cpu(nmi_watchdog_ctlblk, cpu).enabled = 0; + atomic_dec(&nmi_active); } } + if (!atomic_read(&nmi_active)) { + kfree(counts); + atomic_set(&nmi_active, -1); + return -1; + } endflag = 1; printk("OK.\n"); @@ -297,8 +282,11 @@ int __init setup_nmi_watchdog(char *str) get_option(&str, &nmi); - if (nmi >= NMI_INVALID) + if ((nmi >= NMI_INVALID) || (nmi < NMI_NONE)) return 0; + + if ((nmi == NMI_LOCAL_APIC) && (nmi_known_cpu() == 0)) + return 0; /* no lapic support */ nmi_watchdog = nmi; return 1; } @@ -307,31 +295,30 @@ __setup("nmi_watchdog=", setup_nmi_watchdog); static void disable_lapic_nmi_watchdog(void) { - if (nmi_active <= 0) + BUG_ON(nmi_watchdog != NMI_LOCAL_APIC); + + if (atomic_read(&nmi_active) <= 0) return; - switch (boot_cpu_data.x86_vendor) { - case X86_VENDOR_AMD: - wrmsr(MSR_K7_EVNTSEL0, 0, 0); - break; - case X86_VENDOR_INTEL: - if (boot_cpu_data.x86 == 15) { - wrmsr(MSR_P4_IQ_CCCR0, 0, 0); - wrmsr(MSR_P4_CRU_ESCR0, 0, 0); - } - break; - } - nmi_active = -1; - /* tell do_nmi() and others that we're not active any more */ - nmi_watchdog = 0; + + on_each_cpu(stop_apic_nmi_watchdog, NULL, 0, 1); + + BUG_ON(atomic_read(&nmi_active) != 0); } static void enable_lapic_nmi_watchdog(void) { - if (nmi_active < 0) { - nmi_watchdog = NMI_LOCAL_APIC; - touch_nmi_watchdog(); - setup_apic_nmi_watchdog(); - } + BUG_ON(nmi_watchdog != NMI_LOCAL_APIC); + + /* are we already enabled */ + if (atomic_read(&nmi_active) != 0) + return; + + /* are we lapic aware */ + if (nmi_known_cpu() <= 0) + return; + + on_each_cpu(setup_apic_nmi_watchdog, NULL, 0, 1); + touch_nmi_watchdog(); } int reserve_lapic_nmi(void) @@ -363,21 +350,24 @@ void release_lapic_nmi(void) void disable_timer_nmi_watchdog(void) { - if ((nmi_watchdog != NMI_IO_APIC) || (nmi_active <= 0)) + BUG_ON(nmi_watchdog != NMI_IO_APIC); + + if (atomic_read(&nmi_active) <= 0) return; disable_irq(0); - unset_nmi_callback(); - nmi_active = -1; - nmi_watchdog = NMI_NONE; + on_each_cpu(stop_apic_nmi_watchdog, NULL, 0, 1); + + BUG_ON(atomic_read(&nmi_active) != 0); } void enable_timer_nmi_watchdog(void) { - if (nmi_active < 0) { - nmi_watchdog = NMI_IO_APIC; + BUG_ON(nmi_watchdog != NMI_IO_APIC); + + if (atomic_read(&nmi_active) == 0) { touch_nmi_watchdog(); - nmi_active = 1; + on_each_cpu(setup_apic_nmi_watchdog, NULL, 0, 1); enable_irq(0); } } @@ -388,7 +378,7 @@ static int nmi_pm_active; /* nmi_active before suspend */ static int lapic_nmi_suspend(struct sys_device *dev, pm_message_t state) { - nmi_pm_active = nmi_active; + nmi_pm_active = atomic_read(&nmi_active); disable_lapic_nmi_watchdog(); return 0; } @@ -396,7 +386,7 @@ static int lapic_nmi_suspend(struct sys_device *dev, pm_message_t state) static int lapic_nmi_resume(struct sys_device *dev) { if (nmi_pm_active > 0) - enable_lapic_nmi_watchdog(); + enable_lapic_nmi_watchdog(); return 0; } @@ -415,7 +405,13 @@ static int __init init_lapic_nmi_sysfs(void) { int error; - if (nmi_active == 0 || nmi_watchdog != NMI_LOCAL_APIC) + /* should really be a BUG_ON but b/c this is an + * init call, it just doesn't work. -dcz + */ + if (nmi_watchdog != NMI_LOCAL_APIC) + return 0; + + if ( atomic_read(&nmi_active) < 0 ) return 0; error = sysdev_class_register(&nmi_sysclass); @@ -428,100 +424,232 @@ late_initcall(init_lapic_nmi_sysfs); #endif /* CONFIG_PM */ +/* + * Activate the NMI watchdog via the local APIC. + * Original code written by Keith Owens. + */ + +/* Note that these events don't tick when the CPU idles. This means + the frequency varies with CPU load. */ + +#define K7_EVNTSEL_ENABLE (1 << 22) +#define K7_EVNTSEL_INT (1 << 20) +#define K7_EVNTSEL_OS (1 << 17) +#define K7_EVNTSEL_USR (1 << 16) +#define K7_EVENT_CYCLES_PROCESSOR_IS_RUNNING 0x76 +#define K7_NMI_EVENT K7_EVENT_CYCLES_PROCESSOR_IS_RUNNING + static int setup_k7_watchdog(void) { + unsigned int perfctr_msr, evntsel_msr; unsigned int evntsel; + struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); - nmi_perfctr_msr = MSR_K7_PERFCTR0; - - if (!reserve_perfctr_nmi(nmi_perfctr_msr)) + perfctr_msr = MSR_K7_PERFCTR0; + evntsel_msr = MSR_K7_EVNTSEL0; + if (!reserve_perfctr_nmi(perfctr_msr)) goto fail; - if (!reserve_evntsel_nmi(MSR_K7_EVNTSEL0)) + if (!reserve_evntsel_nmi(evntsel_msr)) goto fail1; /* Simulator may not support it */ - if (checking_wrmsrl(MSR_K7_EVNTSEL0, 0UL)) + if (checking_wrmsrl(evntsel_msr, 0UL)) goto fail2; - wrmsrl(MSR_K7_PERFCTR0, 0UL); + wrmsrl(perfctr_msr, 0UL); evntsel = K7_EVNTSEL_INT | K7_EVNTSEL_OS | K7_EVNTSEL_USR | K7_NMI_EVENT; - wrmsr(MSR_K7_EVNTSEL0, evntsel, 0); - wrmsrl(MSR_K7_PERFCTR0, -((u64)cpu_khz * 1000 / nmi_hz)); + /* setup the timer */ + wrmsr(evntsel_msr, evntsel, 0); + wrmsrl(perfctr_msr, -((u64)cpu_khz * 1000 / nmi_hz)); apic_write(APIC_LVTPC, APIC_DM_NMI); evntsel |= K7_EVNTSEL_ENABLE; - wrmsr(MSR_K7_EVNTSEL0, evntsel, 0); + wrmsr(evntsel_msr, evntsel, 0); + + wd->perfctr_msr = perfctr_msr; + wd->evntsel_msr = evntsel_msr; + wd->cccr_msr = 0; //unused + wd->check_bit = 1ULL<<63; return 1; fail2: - release_evntsel_nmi(MSR_K7_EVNTSEL0); + release_evntsel_nmi(evntsel_msr); fail1: - release_perfctr_nmi(nmi_perfctr_msr); + release_perfctr_nmi(perfctr_msr); fail: return 0; } +static void stop_k7_watchdog(void) +{ + struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); + + wrmsr(wd->evntsel_msr, 0, 0); + + release_evntsel_nmi(wd->evntsel_msr); + release_perfctr_nmi(wd->perfctr_msr); +} + +/* Note that these events don't tick when the CPU idles. This means + the frequency varies with CPU load. */ + +#define MSR_P4_MISC_ENABLE_PERF_AVAIL (1<<7) +#define P4_ESCR_EVENT_SELECT(N) ((N)<<25) +#define P4_ESCR_OS (1<<3) +#define P4_ESCR_USR (1<<2) +#define P4_CCCR_OVF_PMI0 (1<<26) +#define P4_CCCR_OVF_PMI1 (1<<27) +#define P4_CCCR_THRESHOLD(N) ((N)<<20) +#define P4_CCCR_COMPLEMENT (1<<19) +#define P4_CCCR_COMPARE (1<<18) +#define P4_CCCR_REQUIRED (3<<16) +#define P4_CCCR_ESCR_SELECT(N) ((N)<<13) +#define P4_CCCR_ENABLE (1<<12) +#define P4_CCCR_OVF (1<<31) +/* Set up IQ_COUNTER0 to behave like a clock, by having IQ_CCCR0 filter + CRU_ESCR0 (with any non-null event selector) through a complemented + max threshold. [IA32-Vol3, Section 14.9.9] */ static int setup_p4_watchdog(void) { + unsigned int perfctr_msr, evntsel_msr, cccr_msr; + unsigned int evntsel, cccr_val; unsigned int misc_enable, dummy; + unsigned int ht_num; + struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); - rdmsr(MSR_P4_MISC_ENABLE, misc_enable, dummy); + rdmsr(MSR_IA32_MISC_ENABLE, misc_enable, dummy); if (!(misc_enable & MSR_P4_MISC_ENABLE_PERF_AVAIL)) return 0; - nmi_perfctr_msr = MSR_P4_IQ_COUNTER0; - nmi_p4_cccr_val = P4_NMI_IQ_CCCR0; #ifdef CONFIG_SMP - if (smp_num_siblings == 2) - nmi_p4_cccr_val |= P4_CCCR_OVF_PMI1; + /* detect which hyperthread we are on */ + if (smp_num_siblings == 2) { + unsigned int ebx, apicid; + + ebx = cpuid_ebx(1); + apicid = (ebx >> 24) & 0xff; + ht_num = apicid & 1; + } else #endif + ht_num = 0; + + /* performance counters are shared resources + * assign each hyperthread its own set + * (re-use the ESCR0 register, seems safe + * and keeps the cccr_val the same) + */ + if (!ht_num) { + /* logical cpu 0 */ + perfctr_msr = MSR_P4_IQ_PERFCTR0; + evntsel_msr = MSR_P4_CRU_ESCR0; + cccr_msr = MSR_P4_IQ_CCCR0; + cccr_val = P4_CCCR_OVF_PMI0 | P4_CCCR_ESCR_SELECT(4); + } else { + /* logical cpu 1 */ + perfctr_msr = MSR_P4_IQ_PERFCTR1; + evntsel_msr = MSR_P4_CRU_ESCR0; + cccr_msr = MSR_P4_IQ_CCCR1; + cccr_val = P4_CCCR_OVF_PMI1 | P4_CCCR_ESCR_SELECT(4); + } - if (!reserve_perfctr_nmi(nmi_perfctr_msr)) + if (!reserve_perfctr_nmi(perfctr_msr)) goto fail; - if (!reserve_evntsel_nmi(MSR_P4_CRU_ESCR0)) + if (!reserve_evntsel_nmi(evntsel_msr)) goto fail1; - wrmsr(MSR_P4_CRU_ESCR0, P4_NMI_CRU_ESCR0, 0); - wrmsr(MSR_P4_IQ_CCCR0, P4_NMI_IQ_CCCR0 & ~P4_CCCR_ENABLE, 0); - Dprintk("setting P4_IQ_COUNTER0 to 0x%08lx\n", -(cpu_khz * 1000UL / nmi_hz)); - wrmsrl(MSR_P4_IQ_COUNTER0, -((u64)cpu_khz * 1000 / nmi_hz)); + evntsel = P4_ESCR_EVENT_SELECT(0x3F) + | P4_ESCR_OS + | P4_ESCR_USR; + + cccr_val |= P4_CCCR_THRESHOLD(15) + | P4_CCCR_COMPLEMENT + | P4_CCCR_COMPARE + | P4_CCCR_REQUIRED; + + wrmsr(evntsel_msr, evntsel, 0); + wrmsr(cccr_msr, cccr_val, 0); + wrmsrl(perfctr_msr, -((u64)cpu_khz * 1000 / nmi_hz)); apic_write(APIC_LVTPC, APIC_DM_NMI); - wrmsr(MSR_P4_IQ_CCCR0, nmi_p4_cccr_val, 0); + cccr_val |= P4_CCCR_ENABLE; + wrmsr(cccr_msr, cccr_val, 0); + + wd->perfctr_msr = perfctr_msr; + wd->evntsel_msr = evntsel_msr; + wd->cccr_msr = cccr_msr; + wd->check_bit = 1ULL<<39; return 1; fail1: - release_perfctr_nmi(nmi_perfctr_msr); + release_perfctr_nmi(perfctr_msr); fail: return 0; } -void setup_apic_nmi_watchdog(void) +static void stop_p4_watchdog(void) { - switch (boot_cpu_data.x86_vendor) { - case X86_VENDOR_AMD: - if (boot_cpu_data.x86 != 15) - return; - if (strstr(boot_cpu_data.x86_model_id, "Screwdriver")) - return; - if (!setup_k7_watchdog()) - return; - break; - case X86_VENDOR_INTEL: - if (boot_cpu_data.x86 != 15) - return; - if (!setup_p4_watchdog()) + struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); + + wrmsr(wd->cccr_msr, 0, 0); + wrmsr(wd->evntsel_msr, 0, 0); + + release_evntsel_nmi(wd->evntsel_msr); + release_perfctr_nmi(wd->perfctr_msr); +} + +void setup_apic_nmi_watchdog(void *unused) +{ + /* only support LOCAL and IO APICs for now */ + if ((nmi_watchdog != NMI_LOCAL_APIC) && + (nmi_watchdog != NMI_IO_APIC)) + return; + + if (nmi_watchdog == NMI_LOCAL_APIC) { + switch (boot_cpu_data.x86_vendor) { + case X86_VENDOR_AMD: + if (strstr(boot_cpu_data.x86_model_id, "Screwdriver")) + return; + if (!setup_k7_watchdog()) + return; + break; + case X86_VENDOR_INTEL: + if (!setup_p4_watchdog()) + return; + break; + default: return; - break; + } + } + __get_cpu_var(nmi_watchdog_ctlblk.enabled) = 1; + atomic_inc(&nmi_active); +} - default: - return; +static void stop_apic_nmi_watchdog(void *unused) +{ + /* only support LOCAL and IO APICs for now */ + if ((nmi_watchdog != NMI_LOCAL_APIC) && + (nmi_watchdog != NMI_IO_APIC)) + return; + + if (nmi_watchdog == NMI_LOCAL_APIC) { + switch (boot_cpu_data.x86_vendor) { + case X86_VENDOR_AMD: + if (strstr(boot_cpu_data.x86_model_id, "Screwdriver")) + return; + stop_k7_watchdog(); + break; + case X86_VENDOR_INTEL: + stop_p4_watchdog(); + break; + default: + return; + } } - lapic_nmi_owner = LAPIC_NMI_WATCHDOG; - nmi_active = 1; + __get_cpu_var(nmi_watchdog_ctlblk.enabled) = 0; + atomic_dec(&nmi_active); } /* @@ -558,50 +686,70 @@ void __kprobes nmi_watchdog_tick(struct pt_regs * regs, unsigned reason) { int sum; int touched = 0; + struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); + u64 dummy; + + /* check for other users first */ + if (notify_die(DIE_NMI, "nmi", regs, reason, 2, SIGINT) + == NOTIFY_STOP) { + touched = 1; + } sum = read_pda(apic_timer_irqs); if (__get_cpu_var(nmi_touch)) { __get_cpu_var(nmi_touch) = 0; touched = 1; } + #ifdef CONFIG_X86_MCE /* Could check oops_in_progress here too, but it's safer not too */ if (atomic_read(&mce_entry) > 0) touched = 1; #endif + /* if the apic timer isn't firing, this cpu isn't doing much */ if (!touched && __get_cpu_var(last_irq_sum) == sum) { /* * Ayiee, looks like this CPU is stuck ... * wait a few IRQs (5 seconds) before doing the oops ... */ local_inc(&__get_cpu_var(alert_counter)); - if (local_read(&__get_cpu_var(alert_counter)) == 5*nmi_hz) { - if (notify_die(DIE_NMI, "nmi", regs, reason, 2, SIGINT) - == NOTIFY_STOP) { - local_set(&__get_cpu_var(alert_counter), 0); - return; - } + if (local_read(&__get_cpu_var(alert_counter)) == 5*nmi_hz) die_nmi("NMI Watchdog detected LOCKUP on CPU %d\n", regs); - } } else { __get_cpu_var(last_irq_sum) = sum; local_set(&__get_cpu_var(alert_counter), 0); } - if (nmi_perfctr_msr) { - if (nmi_perfctr_msr == MSR_P4_IQ_COUNTER0) { - /* - * P4 quirks: - * - An overflown perfctr will assert its interrupt - * until the OVF flag in its CCCR is cleared. - * - LVTPC is masked on interrupt and must be - * unmasked by the LVTPC handler. - */ - wrmsr(MSR_P4_IQ_CCCR0, nmi_p4_cccr_val, 0); - apic_write(APIC_LVTPC, APIC_DM_NMI); - } - wrmsrl(nmi_perfctr_msr, -((u64)cpu_khz * 1000 / nmi_hz)); + + /* see if the nmi watchdog went off */ + if (wd->enabled) { + if (nmi_watchdog == NMI_LOCAL_APIC) { + rdmsrl(wd->perfctr_msr, dummy); + if (dummy & wd->check_bit){ + /* this wasn't a watchdog timer interrupt */ + goto done; + } + + /* only Intel uses the cccr msr */ + if (wd->cccr_msr != 0) { + /* + * P4 quirks: + * - An overflown perfctr will assert its interrupt + * until the OVF flag in its CCCR is cleared. + * - LVTPC is masked on interrupt and must be + * unmasked by the LVTPC handler. + */ + rdmsrl(wd->cccr_msr, dummy); + dummy &= ~P4_CCCR_OVF; + wrmsrl(wd->cccr_msr, dummy); + apic_write(APIC_LVTPC, APIC_DM_NMI); + } + /* start the cycle over again */ + wrmsrl(wd->perfctr_msr, -((u64)cpu_khz * 1000 / nmi_hz)); + } } +done: + return; } static __kprobes int dummy_nmi_callback(struct pt_regs * regs, int cpu) diff --git a/include/asm-x86_64/nmi.h b/include/asm-x86_64/nmi.h index 62a784cb8f0c..5918136fd853 100644 --- a/include/asm-x86_64/nmi.h +++ b/include/asm-x86_64/nmi.h @@ -63,7 +63,7 @@ extern void release_perfctr_nmi(unsigned int); extern int reserve_evntsel_nmi(unsigned int); extern void release_evntsel_nmi(unsigned int); -extern void setup_apic_nmi_watchdog (void); +extern void setup_apic_nmi_watchdog (void *); extern int reserve_lapic_nmi(void); extern void release_lapic_nmi(void); extern void disable_timer_nmi_watchdog(void); @@ -73,6 +73,7 @@ extern void nmi_watchdog_tick (struct pt_regs * regs, unsigned reason); extern void nmi_watchdog_default(void); extern int setup_nmi_watchdog(char *); +extern atomic_t nmi_active; extern unsigned int nmi_watchdog; #define NMI_DEFAULT -1 #define NMI_NONE 0 -- cgit v1.2.3 From b7471c6da94d30d3deadc55986cc38d1ff57f9ca Mon Sep 17 00:00:00 2001 From: Don Zickus Date: Tue, 26 Sep 2006 10:52:26 +0200 Subject: [PATCH] i386: Add SMP support on i386 to reservation framework This patch includes the changes to make the nmi watchdog on i386 SMP aware. A bunch of code was moved around to make it simpler to read. In addition, it is now possible to determine if a particular NMI was the result of the watchdog or not. This feature allows the kernel to filter out unknown NMIs easier. Signed-off-by: Don Zickus Signed-off-by: Andi Kleen --- arch/i386/kernel/apic.c | 3 +- arch/i386/kernel/nmi.c | 537 ++++++++++++++++++++++++------------- arch/i386/kernel/traps.c | 2 +- arch/i386/oprofile/nmi_timer_int.c | 4 +- include/asm-i386/nmi.h | 5 +- 5 files changed, 360 insertions(+), 191 deletions(-) (limited to 'include') diff --git a/arch/i386/kernel/apic.c b/arch/i386/kernel/apic.c index 8c844d07862f..1a34fc57800b 100644 --- a/arch/i386/kernel/apic.c +++ b/arch/i386/kernel/apic.c @@ -586,8 +586,7 @@ void __devinit setup_local_APIC(void) printk("No ESR for 82489DX.\n"); } - if (nmi_watchdog == NMI_LOCAL_APIC) - setup_apic_nmi_watchdog(); + setup_apic_nmi_watchdog(NULL); apic_pm_activate(); } diff --git a/arch/i386/kernel/nmi.c b/arch/i386/kernel/nmi.c index 5d58dfeacd59..d88004343034 100644 --- a/arch/i386/kernel/nmi.c +++ b/arch/i386/kernel/nmi.c @@ -24,16 +24,10 @@ #include #include +#include #include "mach_traps.h" -unsigned int nmi_watchdog = NMI_NONE; -extern int unknown_nmi_panic; -static unsigned int nmi_hz = HZ; -static unsigned int nmi_perfctr_msr; /* the MSR to reset in NMI handler */ -static unsigned int nmi_p4_cccr_val; -extern void show_registers(struct pt_regs *regs); - /* perfctr_nmi_owner tracks the ownership of the perfctr registers: * evtsel_nmi_owner tracks the ownership of the event selection * - different performance counters/ event selection may be reserved for @@ -63,51 +57,31 @@ static unsigned int lapic_nmi_owner; #define LAPIC_NMI_RESERVED (1<<1) /* nmi_active: - * +1: the lapic NMI watchdog is active, but can be disabled - * 0: the lapic NMI watchdog has not been set up, and cannot + * >0: the lapic NMI watchdog is active, but can be disabled + * <0: the lapic NMI watchdog has not been set up, and cannot * be enabled - * -1: the lapic NMI watchdog is disabled, but can be enabled + * 0: the lapic NMI watchdog is disabled, but can be enabled */ -int nmi_active; +atomic_t nmi_active = ATOMIC_INIT(0); /* oprofile uses this */ -#define K7_EVNTSEL_ENABLE (1 << 22) -#define K7_EVNTSEL_INT (1 << 20) -#define K7_EVNTSEL_OS (1 << 17) -#define K7_EVNTSEL_USR (1 << 16) -#define K7_EVENT_CYCLES_PROCESSOR_IS_RUNNING 0x76 -#define K7_NMI_EVENT K7_EVENT_CYCLES_PROCESSOR_IS_RUNNING +unsigned int nmi_watchdog = NMI_DEFAULT; +static unsigned int nmi_hz = HZ; -#define P6_EVNTSEL0_ENABLE (1 << 22) -#define P6_EVNTSEL_INT (1 << 20) -#define P6_EVNTSEL_OS (1 << 17) -#define P6_EVNTSEL_USR (1 << 16) -#define P6_EVENT_CPU_CLOCKS_NOT_HALTED 0x79 -#define P6_NMI_EVENT P6_EVENT_CPU_CLOCKS_NOT_HALTED +struct nmi_watchdog_ctlblk { + int enabled; + u64 check_bit; + unsigned int cccr_msr; + unsigned int perfctr_msr; /* the MSR to reset in NMI handler */ + unsigned int evntsel_msr; /* the MSR to select the events to handle */ +}; +static DEFINE_PER_CPU(struct nmi_watchdog_ctlblk, nmi_watchdog_ctlblk); -#define MSR_P4_MISC_ENABLE 0x1A0 -#define MSR_P4_MISC_ENABLE_PERF_AVAIL (1<<7) -#define MSR_P4_MISC_ENABLE_PEBS_UNAVAIL (1<<12) -#define MSR_P4_PERFCTR0 0x300 -#define MSR_P4_CCCR0 0x360 -#define P4_ESCR_EVENT_SELECT(N) ((N)<<25) -#define P4_ESCR_OS (1<<3) -#define P4_ESCR_USR (1<<2) -#define P4_CCCR_OVF_PMI0 (1<<26) -#define P4_CCCR_OVF_PMI1 (1<<27) -#define P4_CCCR_THRESHOLD(N) ((N)<<20) -#define P4_CCCR_COMPLEMENT (1<<19) -#define P4_CCCR_COMPARE (1<<18) -#define P4_CCCR_REQUIRED (3<<16) -#define P4_CCCR_ESCR_SELECT(N) ((N)<<13) -#define P4_CCCR_ENABLE (1<<12) -/* Set up IQ_COUNTER0 to behave like a clock, by having IQ_CCCR0 filter - CRU_ESCR0 (with any non-null event selector) through a complemented - max threshold. [IA32-Vol3, Section 14.9.9] */ -#define MSR_P4_IQ_COUNTER0 0x30C -#define P4_NMI_CRU_ESCR0 (P4_ESCR_EVENT_SELECT(0x3F)|P4_ESCR_OS|P4_ESCR_USR) -#define P4_NMI_IQ_CCCR0 \ - (P4_CCCR_OVF_PMI0|P4_CCCR_THRESHOLD(15)|P4_CCCR_COMPLEMENT| \ - P4_CCCR_COMPARE|P4_CCCR_REQUIRED|P4_CCCR_ESCR_SELECT(4)|P4_CCCR_ENABLE) +/* local prototypes */ +static void stop_apic_nmi_watchdog(void *unused); +static int unknown_nmi_panic_callback(struct pt_regs *regs, int cpu); + +extern void show_registers(struct pt_regs *regs); +extern int unknown_nmi_panic; /* converts an msr to an appropriate reservation bit */ static inline unsigned int nmi_perfctr_msr_to_bit(unsigned int msr) @@ -208,6 +182,17 @@ void release_evntsel_nmi(unsigned int msr) clear_bit(counter, &__get_cpu_var(evntsel_nmi_owner)[0]); } +static __cpuinit inline int nmi_known_cpu(void) +{ + switch (boot_cpu_data.x86_vendor) { + case X86_VENDOR_AMD: + return ((boot_cpu_data.x86 == 15) || (boot_cpu_data.x86 == 6)); + case X86_VENDOR_INTEL: + return ((boot_cpu_data.x86 == 15) || (boot_cpu_data.x86 == 6)); + } + return 0; +} + #ifdef CONFIG_SMP /* The performance counters used by NMI_LOCAL_APIC don't trigger when * the CPU is idle. To make sure the NMI watchdog really ticks on all @@ -234,7 +219,10 @@ static int __init check_nmi_watchdog(void) unsigned int *prev_nmi_count; int cpu; - if (nmi_watchdog == NMI_NONE) + if ((nmi_watchdog == NMI_NONE) || (nmi_watchdog == NMI_DEFAULT)) + return 0; + + if (!atomic_read(&nmi_active)) return 0; prev_nmi_count = kmalloc(NR_CPUS * sizeof(int), GFP_KERNEL); @@ -258,18 +246,22 @@ static int __init check_nmi_watchdog(void) if (!cpu_isset(cpu, cpu_callin_map)) continue; #endif + if (!per_cpu(nmi_watchdog_ctlblk, cpu).enabled) + continue; if (nmi_count(cpu) - prev_nmi_count[cpu] <= 5) { - endflag = 1; printk("CPU#%d: NMI appears to be stuck (%d->%d)!\n", cpu, prev_nmi_count[cpu], nmi_count(cpu)); - nmi_active = 0; - lapic_nmi_owner &= ~LAPIC_NMI_WATCHDOG; - kfree(prev_nmi_count); - return -1; + per_cpu(nmi_watchdog_ctlblk, cpu).enabled = 0; + atomic_dec(&nmi_active); } } + if (!atomic_read(&nmi_active)) { + kfree(prev_nmi_count); + atomic_set(&nmi_active, -1); + return -1; + } endflag = 1; printk("OK.\n"); @@ -290,31 +282,16 @@ static int __init setup_nmi_watchdog(char *str) get_option(&str, &nmi); - if (nmi >= NMI_INVALID) + if ((nmi >= NMI_INVALID) || (nmi < NMI_NONE)) return 0; - if (nmi == NMI_NONE) - nmi_watchdog = nmi; /* * If any other x86 CPU has a local APIC, then * please test the NMI stuff there and send me the * missing bits. Right now Intel P6/P4 and AMD K7 only. */ - if ((nmi == NMI_LOCAL_APIC) && - (boot_cpu_data.x86_vendor == X86_VENDOR_INTEL) && - (boot_cpu_data.x86 == 6 || boot_cpu_data.x86 == 15)) - nmi_watchdog = nmi; - if ((nmi == NMI_LOCAL_APIC) && - (boot_cpu_data.x86_vendor == X86_VENDOR_AMD) && - (boot_cpu_data.x86 == 6 || boot_cpu_data.x86 == 15)) - nmi_watchdog = nmi; - /* - * We can enable the IO-APIC watchdog - * unconditionally. - */ - if (nmi == NMI_IO_APIC) { - nmi_active = 1; - nmi_watchdog = nmi; - } + if ((nmi == NMI_LOCAL_APIC) && (nmi_known_cpu() == 0)) + return 0; /* no lapic support */ + nmi_watchdog = nmi; return 1; } @@ -322,41 +299,30 @@ __setup("nmi_watchdog=", setup_nmi_watchdog); static void disable_lapic_nmi_watchdog(void) { - if (nmi_active <= 0) + BUG_ON(nmi_watchdog != NMI_LOCAL_APIC); + + if (atomic_read(&nmi_active) <= 0) return; - switch (boot_cpu_data.x86_vendor) { - case X86_VENDOR_AMD: - wrmsr(MSR_K7_EVNTSEL0, 0, 0); - break; - case X86_VENDOR_INTEL: - switch (boot_cpu_data.x86) { - case 6: - if (boot_cpu_data.x86_model > 0xd) - break; - wrmsr(MSR_P6_EVNTSEL0, 0, 0); - break; - case 15: - if (boot_cpu_data.x86_model > 0x4) - break; + on_each_cpu(stop_apic_nmi_watchdog, NULL, 0, 1); - wrmsr(MSR_P4_IQ_CCCR0, 0, 0); - wrmsr(MSR_P4_CRU_ESCR0, 0, 0); - break; - } - break; - } - nmi_active = -1; - /* tell do_nmi() and others that we're not active any more */ - nmi_watchdog = 0; + BUG_ON(atomic_read(&nmi_active) != 0); } static void enable_lapic_nmi_watchdog(void) { - if (nmi_active < 0) { - nmi_watchdog = NMI_LOCAL_APIC; - setup_apic_nmi_watchdog(); - } + BUG_ON(nmi_watchdog != NMI_LOCAL_APIC); + + /* are we already enabled */ + if (atomic_read(&nmi_active) != 0) + return; + + /* are we lapic aware */ + if (nmi_known_cpu() <= 0) + return; + + on_each_cpu(setup_apic_nmi_watchdog, NULL, 0, 1); + touch_nmi_watchdog(); } int reserve_lapic_nmi(void) @@ -388,20 +354,25 @@ void release_lapic_nmi(void) void disable_timer_nmi_watchdog(void) { - if ((nmi_watchdog != NMI_IO_APIC) || (nmi_active <= 0)) + BUG_ON(nmi_watchdog != NMI_IO_APIC); + + if (atomic_read(&nmi_active) <= 0) return; - unset_nmi_callback(); - nmi_active = -1; - nmi_watchdog = NMI_NONE; + disable_irq(0); + on_each_cpu(stop_apic_nmi_watchdog, NULL, 0, 1); + + BUG_ON(atomic_read(&nmi_active) != 0); } void enable_timer_nmi_watchdog(void) { - if (nmi_active < 0) { - nmi_watchdog = NMI_IO_APIC; + BUG_ON(nmi_watchdog != NMI_IO_APIC); + + if (atomic_read(&nmi_active) == 0) { touch_nmi_watchdog(); - nmi_active = 1; + on_each_cpu(setup_apic_nmi_watchdog, NULL, 0, 1); + enable_irq(0); } } @@ -411,7 +382,7 @@ static int nmi_pm_active; /* nmi_active before suspend */ static int lapic_nmi_suspend(struct sys_device *dev, pm_message_t state) { - nmi_pm_active = nmi_active; + nmi_pm_active = atomic_read(&nmi_active); disable_lapic_nmi_watchdog(); return 0; } @@ -439,7 +410,13 @@ static int __init init_lapic_nmi_sysfs(void) { int error; - if (nmi_active == 0 || nmi_watchdog != NMI_LOCAL_APIC) + /* should really be a BUG_ON but b/c this is an + * init call, it just doesn't work. -dcz + */ + if (nmi_watchdog != NMI_LOCAL_APIC) + return 0; + + if ( atomic_read(&nmi_active) < 0 ) return 0; error = sysdev_class_register(&nmi_sysclass); @@ -457,143 +434,312 @@ late_initcall(init_lapic_nmi_sysfs); * Original code written by Keith Owens. */ -static void write_watchdog_counter(const char *descr) +static void write_watchdog_counter(unsigned int perfctr_msr, const char *descr) { u64 count = (u64)cpu_khz * 1000; do_div(count, nmi_hz); if(descr) Dprintk("setting %s to -0x%08Lx\n", descr, count); - wrmsrl(nmi_perfctr_msr, 0 - count); + wrmsrl(perfctr_msr, 0 - count); } +/* Note that these events don't tick when the CPU idles. This means + the frequency varies with CPU load. */ + +#define K7_EVNTSEL_ENABLE (1 << 22) +#define K7_EVNTSEL_INT (1 << 20) +#define K7_EVNTSEL_OS (1 << 17) +#define K7_EVNTSEL_USR (1 << 16) +#define K7_EVENT_CYCLES_PROCESSOR_IS_RUNNING 0x76 +#define K7_NMI_EVENT K7_EVENT_CYCLES_PROCESSOR_IS_RUNNING + static int setup_k7_watchdog(void) { + unsigned int perfctr_msr, evntsel_msr; unsigned int evntsel; + struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); - nmi_perfctr_msr = MSR_K7_PERFCTR0; - - if (!reserve_perfctr_nmi(nmi_perfctr_msr)) + perfctr_msr = MSR_K7_PERFCTR0; + evntsel_msr = MSR_K7_EVNTSEL0; + if (!reserve_perfctr_nmi(perfctr_msr)) goto fail; - if (!reserve_evntsel_nmi(MSR_K7_EVNTSEL0)) + if (!reserve_evntsel_nmi(evntsel_msr)) goto fail1; - wrmsrl(MSR_K7_PERFCTR0, 0UL); + wrmsrl(perfctr_msr, 0UL); evntsel = K7_EVNTSEL_INT | K7_EVNTSEL_OS | K7_EVNTSEL_USR | K7_NMI_EVENT; - wrmsr(MSR_K7_EVNTSEL0, evntsel, 0); - write_watchdog_counter("K7_PERFCTR0"); + /* setup the timer */ + wrmsr(evntsel_msr, evntsel, 0); + write_watchdog_counter(perfctr_msr, "K7_PERFCTR0"); apic_write(APIC_LVTPC, APIC_DM_NMI); evntsel |= K7_EVNTSEL_ENABLE; - wrmsr(MSR_K7_EVNTSEL0, evntsel, 0); + wrmsr(evntsel_msr, evntsel, 0); + + wd->perfctr_msr = perfctr_msr; + wd->evntsel_msr = evntsel_msr; + wd->cccr_msr = 0; //unused + wd->check_bit = 1ULL<<63; return 1; fail1: - release_perfctr_nmi(nmi_perfctr_msr); + release_perfctr_nmi(perfctr_msr); fail: return 0; } +static void stop_k7_watchdog(void) +{ + struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); + + wrmsr(wd->evntsel_msr, 0, 0); + + release_evntsel_nmi(wd->evntsel_msr); + release_perfctr_nmi(wd->perfctr_msr); +} + +#define P6_EVNTSEL0_ENABLE (1 << 22) +#define P6_EVNTSEL_INT (1 << 20) +#define P6_EVNTSEL_OS (1 << 17) +#define P6_EVNTSEL_USR (1 << 16) +#define P6_EVENT_CPU_CLOCKS_NOT_HALTED 0x79 +#define P6_NMI_EVENT P6_EVENT_CPU_CLOCKS_NOT_HALTED + static int setup_p6_watchdog(void) { + unsigned int perfctr_msr, evntsel_msr; unsigned int evntsel; + struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); - nmi_perfctr_msr = MSR_P6_PERFCTR0; - - if (!reserve_perfctr_nmi(nmi_perfctr_msr)) + perfctr_msr = MSR_P6_PERFCTR0; + evntsel_msr = MSR_P6_EVNTSEL0; + if (!reserve_perfctr_nmi(perfctr_msr)) goto fail; - if (!reserve_evntsel_nmi(MSR_P6_EVNTSEL0)) + if (!reserve_evntsel_nmi(evntsel_msr)) goto fail1; + wrmsrl(perfctr_msr, 0UL); + evntsel = P6_EVNTSEL_INT | P6_EVNTSEL_OS | P6_EVNTSEL_USR | P6_NMI_EVENT; - wrmsr(MSR_P6_EVNTSEL0, evntsel, 0); - write_watchdog_counter("P6_PERFCTR0"); + /* setup the timer */ + wrmsr(evntsel_msr, evntsel, 0); + write_watchdog_counter(perfctr_msr, "P6_PERFCTR0"); apic_write(APIC_LVTPC, APIC_DM_NMI); evntsel |= P6_EVNTSEL0_ENABLE; - wrmsr(MSR_P6_EVNTSEL0, evntsel, 0); + wrmsr(evntsel_msr, evntsel, 0); + + wd->perfctr_msr = perfctr_msr; + wd->evntsel_msr = evntsel_msr; + wd->cccr_msr = 0; //unused + wd->check_bit = 1ULL<<39; return 1; fail1: - release_perfctr_nmi(nmi_perfctr_msr); + release_perfctr_nmi(perfctr_msr); fail: return 0; } +static void stop_p6_watchdog(void) +{ + struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); + + wrmsr(wd->evntsel_msr, 0, 0); + + release_evntsel_nmi(wd->evntsel_msr); + release_perfctr_nmi(wd->perfctr_msr); +} + +/* Note that these events don't tick when the CPU idles. This means + the frequency varies with CPU load. */ + +#define MSR_P4_MISC_ENABLE_PERF_AVAIL (1<<7) +#define P4_ESCR_EVENT_SELECT(N) ((N)<<25) +#define P4_ESCR_OS (1<<3) +#define P4_ESCR_USR (1<<2) +#define P4_CCCR_OVF_PMI0 (1<<26) +#define P4_CCCR_OVF_PMI1 (1<<27) +#define P4_CCCR_THRESHOLD(N) ((N)<<20) +#define P4_CCCR_COMPLEMENT (1<<19) +#define P4_CCCR_COMPARE (1<<18) +#define P4_CCCR_REQUIRED (3<<16) +#define P4_CCCR_ESCR_SELECT(N) ((N)<<13) +#define P4_CCCR_ENABLE (1<<12) +#define P4_CCCR_OVF (1<<31) +/* Set up IQ_COUNTER0 to behave like a clock, by having IQ_CCCR0 filter + CRU_ESCR0 (with any non-null event selector) through a complemented + max threshold. [IA32-Vol3, Section 14.9.9] */ + static int setup_p4_watchdog(void) { + unsigned int perfctr_msr, evntsel_msr, cccr_msr; + unsigned int evntsel, cccr_val; unsigned int misc_enable, dummy; + unsigned int ht_num; + struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); - rdmsr(MSR_P4_MISC_ENABLE, misc_enable, dummy); + rdmsr(MSR_IA32_MISC_ENABLE, misc_enable, dummy); if (!(misc_enable & MSR_P4_MISC_ENABLE_PERF_AVAIL)) return 0; - nmi_perfctr_msr = MSR_P4_IQ_COUNTER0; - nmi_p4_cccr_val = P4_NMI_IQ_CCCR0; #ifdef CONFIG_SMP - if (smp_num_siblings == 2) - nmi_p4_cccr_val |= P4_CCCR_OVF_PMI1; + /* detect which hyperthread we are on */ + if (smp_num_siblings == 2) { + unsigned int ebx, apicid; + + ebx = cpuid_ebx(1); + apicid = (ebx >> 24) & 0xff; + ht_num = apicid & 1; + } else #endif + ht_num = 0; + + /* performance counters are shared resources + * assign each hyperthread its own set + * (re-use the ESCR0 register, seems safe + * and keeps the cccr_val the same) + */ + if (!ht_num) { + /* logical cpu 0 */ + perfctr_msr = MSR_P4_IQ_PERFCTR0; + evntsel_msr = MSR_P4_CRU_ESCR0; + cccr_msr = MSR_P4_IQ_CCCR0; + cccr_val = P4_CCCR_OVF_PMI0 | P4_CCCR_ESCR_SELECT(4); + } else { + /* logical cpu 1 */ + perfctr_msr = MSR_P4_IQ_PERFCTR1; + evntsel_msr = MSR_P4_CRU_ESCR0; + cccr_msr = MSR_P4_IQ_CCCR1; + cccr_val = P4_CCCR_OVF_PMI1 | P4_CCCR_ESCR_SELECT(4); + } - if (!reserve_perfctr_nmi(nmi_perfctr_msr)) + if (!reserve_perfctr_nmi(perfctr_msr)) goto fail; - if (!reserve_evntsel_nmi(MSR_P4_CRU_ESCR0)) + if (!reserve_evntsel_nmi(evntsel_msr)) goto fail1; - wrmsr(MSR_P4_CRU_ESCR0, P4_NMI_CRU_ESCR0, 0); - wrmsr(MSR_P4_IQ_CCCR0, P4_NMI_IQ_CCCR0 & ~P4_CCCR_ENABLE, 0); - write_watchdog_counter("P4_IQ_COUNTER0"); + evntsel = P4_ESCR_EVENT_SELECT(0x3F) + | P4_ESCR_OS + | P4_ESCR_USR; + + cccr_val |= P4_CCCR_THRESHOLD(15) + | P4_CCCR_COMPLEMENT + | P4_CCCR_COMPARE + | P4_CCCR_REQUIRED; + + wrmsr(evntsel_msr, evntsel, 0); + wrmsr(cccr_msr, cccr_val, 0); + write_watchdog_counter(perfctr_msr, "P4_IQ_COUNTER0"); apic_write(APIC_LVTPC, APIC_DM_NMI); - wrmsr(MSR_P4_IQ_CCCR0, nmi_p4_cccr_val, 0); + cccr_val |= P4_CCCR_ENABLE; + wrmsr(cccr_msr, cccr_val, 0); + wd->perfctr_msr = perfctr_msr; + wd->evntsel_msr = evntsel_msr; + wd->cccr_msr = cccr_msr; + wd->check_bit = 1ULL<<39; return 1; fail1: - release_perfctr_nmi(nmi_perfctr_msr); + release_perfctr_nmi(perfctr_msr); fail: return 0; } -void setup_apic_nmi_watchdog (void) +static void stop_p4_watchdog(void) { - switch (boot_cpu_data.x86_vendor) { - case X86_VENDOR_AMD: - if (boot_cpu_data.x86 != 6 && boot_cpu_data.x86 != 15) - return; - if (!setup_k7_watchdog()) - return; - break; - case X86_VENDOR_INTEL: - switch (boot_cpu_data.x86) { - case 6: - if (boot_cpu_data.x86_model > 0xd) - return; + struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); + + wrmsr(wd->cccr_msr, 0, 0); + wrmsr(wd->evntsel_msr, 0, 0); - if(!setup_p6_watchdog()) + release_evntsel_nmi(wd->evntsel_msr); + release_perfctr_nmi(wd->perfctr_msr); +} + +void setup_apic_nmi_watchdog (void *unused) +{ + /* only support LOCAL and IO APICs for now */ + if ((nmi_watchdog != NMI_LOCAL_APIC) && + (nmi_watchdog != NMI_IO_APIC)) + return; + + if (nmi_watchdog == NMI_LOCAL_APIC) { + switch (boot_cpu_data.x86_vendor) { + case X86_VENDOR_AMD: + if (boot_cpu_data.x86 != 6 && boot_cpu_data.x86 != 15) return; - break; - case 15: - if (boot_cpu_data.x86_model > 0x4) + if (!setup_k7_watchdog()) return; + break; + case X86_VENDOR_INTEL: + switch (boot_cpu_data.x86) { + case 6: + if (boot_cpu_data.x86_model > 0xd) + return; + + if (!setup_p6_watchdog()) + return; + break; + case 15: + if (boot_cpu_data.x86_model > 0x4) + return; - if (!setup_p4_watchdog()) + if (!setup_p4_watchdog()) + return; + break; + default: return; + } + break; + default: + return; + } + } + __get_cpu_var(nmi_watchdog_ctlblk.enabled) = 1; + atomic_inc(&nmi_active); +} + +static void stop_apic_nmi_watchdog(void *unused) +{ + /* only support LOCAL and IO APICs for now */ + if ((nmi_watchdog != NMI_LOCAL_APIC) && + (nmi_watchdog != NMI_IO_APIC)) + return; + + if (nmi_watchdog == NMI_LOCAL_APIC) { + switch (boot_cpu_data.x86_vendor) { + case X86_VENDOR_AMD: + stop_k7_watchdog(); + break; + case X86_VENDOR_INTEL: + switch (boot_cpu_data.x86) { + case 6: + if (boot_cpu_data.x86_model > 0xd) + break; + stop_p6_watchdog(); + break; + case 15: + if (boot_cpu_data.x86_model > 0x4) + break; + stop_p4_watchdog(); + break; + } break; default: return; } - break; - default: - return; } - lapic_nmi_owner = LAPIC_NMI_WATCHDOG; - nmi_active = 1; + __get_cpu_var(nmi_watchdog_ctlblk.enabled) = 0; + atomic_dec(&nmi_active); } /* @@ -635,7 +781,7 @@ EXPORT_SYMBOL(touch_nmi_watchdog); extern void die_nmi(struct pt_regs *, const char *msg); -void nmi_watchdog_tick (struct pt_regs * regs) +void nmi_watchdog_tick (struct pt_regs * regs, unsigned reason) { /* @@ -644,11 +790,21 @@ void nmi_watchdog_tick (struct pt_regs * regs) * smp_processor_id(). */ unsigned int sum; + int touched = 0; int cpu = smp_processor_id(); + struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); + u64 dummy; + + /* check for other users first */ + if (notify_die(DIE_NMI, "nmi", regs, reason, 2, SIGINT) + == NOTIFY_STOP) { + touched = 1; + } sum = per_cpu(irq_stat, cpu).apic_timer_irqs; - if (last_irq_sums[cpu] == sum) { + /* if the apic timer isn't firing, this cpu isn't doing much */ + if (!touched && last_irq_sums[cpu] == sum) { /* * Ayiee, looks like this CPU is stuck ... * wait a few IRQs (5 seconds) before doing the oops ... @@ -663,26 +819,41 @@ void nmi_watchdog_tick (struct pt_regs * regs) last_irq_sums[cpu] = sum; alert_counter[cpu] = 0; } - if (nmi_perfctr_msr) { - if (nmi_perfctr_msr == MSR_P4_IQ_COUNTER0) { - /* - * P4 quirks: - * - An overflown perfctr will assert its interrupt - * until the OVF flag in its CCCR is cleared. - * - LVTPC is masked on interrupt and must be - * unmasked by the LVTPC handler. - */ - wrmsr(MSR_P4_IQ_CCCR0, nmi_p4_cccr_val, 0); - apic_write(APIC_LVTPC, APIC_DM_NMI); - } - else if (nmi_perfctr_msr == MSR_P6_PERFCTR0) { - /* Only P6 based Pentium M need to re-unmask - * the apic vector but it doesn't hurt - * other P6 variant */ - apic_write(APIC_LVTPC, APIC_DM_NMI); + /* see if the nmi watchdog went off */ + if (wd->enabled) { + if (nmi_watchdog == NMI_LOCAL_APIC) { + rdmsrl(wd->perfctr_msr, dummy); + if (dummy & wd->check_bit){ + /* this wasn't a watchdog timer interrupt */ + goto done; + } + + /* only Intel P4 uses the cccr msr */ + if (wd->cccr_msr != 0) { + /* + * P4 quirks: + * - An overflown perfctr will assert its interrupt + * until the OVF flag in its CCCR is cleared. + * - LVTPC is masked on interrupt and must be + * unmasked by the LVTPC handler. + */ + rdmsrl(wd->cccr_msr, dummy); + dummy &= ~P4_CCCR_OVF; + wrmsrl(wd->cccr_msr, dummy); + apic_write(APIC_LVTPC, APIC_DM_NMI); + } + else if (wd->perfctr_msr == MSR_P6_PERFCTR0) { + /* Only P6 based Pentium M need to re-unmask + * the apic vector but it doesn't hurt + * other P6 variant */ + apic_write(APIC_LVTPC, APIC_DM_NMI); + } + /* start the cycle over again */ + write_watchdog_counter(wd->perfctr_msr, NULL); } - write_watchdog_counter(NULL); } +done: + return; } #ifdef CONFIG_SYSCTL diff --git a/arch/i386/kernel/traps.c b/arch/i386/kernel/traps.c index 7e9edafffd8a..3a07b2677e2a 100644 --- a/arch/i386/kernel/traps.c +++ b/arch/i386/kernel/traps.c @@ -724,7 +724,7 @@ static void default_do_nmi(struct pt_regs * regs) * so it must be the NMI watchdog. */ if (nmi_watchdog) { - nmi_watchdog_tick(regs); + nmi_watchdog_tick(regs, reason); return; } #endif diff --git a/arch/i386/oprofile/nmi_timer_int.c b/arch/i386/oprofile/nmi_timer_int.c index 930a1127bb30..a33a73bb502d 100644 --- a/arch/i386/oprofile/nmi_timer_int.c +++ b/arch/i386/oprofile/nmi_timer_int.c @@ -42,9 +42,7 @@ static void timer_stop(void) int __init op_nmi_timer_init(struct oprofile_operations * ops) { - extern int nmi_active; - - if (nmi_active <= 0) + if (atomic_read(&nmi_active) <= 0) return -ENODEV; ops->start = timer_start; diff --git a/include/asm-i386/nmi.h b/include/asm-i386/nmi.h index 27fc9e6f630e..4cda6801ecb8 100644 --- a/include/asm-i386/nmi.h +++ b/include/asm-i386/nmi.h @@ -32,13 +32,14 @@ extern void release_perfctr_nmi(unsigned int); extern int reserve_evntsel_nmi(unsigned int); extern void release_evntsel_nmi(unsigned int); -extern void setup_apic_nmi_watchdog (void); +extern void setup_apic_nmi_watchdog (void *); extern int reserve_lapic_nmi(void); extern void release_lapic_nmi(void); extern void disable_timer_nmi_watchdog(void); extern void enable_timer_nmi_watchdog(void); -extern void nmi_watchdog_tick (struct pt_regs * regs); +extern void nmi_watchdog_tick (struct pt_regs * regs, unsigned reason); +extern atomic_t nmi_active; extern unsigned int nmi_watchdog; #define NMI_DEFAULT -1 #define NMI_NONE 0 -- cgit v1.2.3 From 3adbbcce9a49b900d4cc118cdccfdefa78bf1afb Mon Sep 17 00:00:00 2001 From: Don Zickus Date: Tue, 26 Sep 2006 10:52:26 +0200 Subject: [PATCH] x86: Cleanup NMI interrupt path This patch cleans up the NMI interrupt path. Instead of being gated by if the 'nmi callback' is set, the interrupt handler now calls everyone who is registered on the die_chain and additionally checks the nmi watchdog, reseting it if enabled. This allows more subsystems to hook into the NMI if they need to (without being block by set_nmi_callback). Signed-off-by: Don Zickus Signed-off-by: Andi Kleen --- arch/i386/kernel/nmi.c | 16 +++++++++++++--- arch/i386/kernel/traps.c | 24 +++++++++++------------- arch/x86_64/kernel/nmi.c | 26 +++++++++++++++++++------- arch/x86_64/kernel/traps.c | 8 ++++---- include/asm-i386/nmi.h | 2 +- include/asm-x86_64/nmi.h | 10 +++++++++- 6 files changed, 57 insertions(+), 29 deletions(-) (limited to 'include') diff --git a/arch/i386/kernel/nmi.c b/arch/i386/kernel/nmi.c index d88004343034..bd96ea4f2942 100644 --- a/arch/i386/kernel/nmi.c +++ b/arch/i386/kernel/nmi.c @@ -781,7 +781,7 @@ EXPORT_SYMBOL(touch_nmi_watchdog); extern void die_nmi(struct pt_regs *, const char *msg); -void nmi_watchdog_tick (struct pt_regs * regs, unsigned reason) +int nmi_watchdog_tick (struct pt_regs * regs, unsigned reason) { /* @@ -794,10 +794,12 @@ void nmi_watchdog_tick (struct pt_regs * regs, unsigned reason) int cpu = smp_processor_id(); struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); u64 dummy; + int rc=0; /* check for other users first */ if (notify_die(DIE_NMI, "nmi", regs, reason, 2, SIGINT) == NOTIFY_STOP) { + rc = 1; touched = 1; } @@ -850,10 +852,18 @@ void nmi_watchdog_tick (struct pt_regs * regs, unsigned reason) } /* start the cycle over again */ write_watchdog_counter(wd->perfctr_msr, NULL); - } + rc = 1; + } else if (nmi_watchdog == NMI_IO_APIC) { + /* don't know how to accurately check for this. + * just assume it was a watchdog timer interrupt + * This matches the old behaviour. + */ + rc = 1; + } else + printk(KERN_WARNING "Unknown enabled NMI hardware?!\n"); } done: - return; + return rc; } #ifdef CONFIG_SYSCTL diff --git a/arch/i386/kernel/traps.c b/arch/i386/kernel/traps.c index 3a07b2677e2a..282f0bd40dfd 100644 --- a/arch/i386/kernel/traps.c +++ b/arch/i386/kernel/traps.c @@ -706,6 +706,13 @@ void die_nmi (struct pt_regs *regs, const char *msg) do_exit(SIGSEGV); } +static int dummy_nmi_callback(struct pt_regs * regs, int cpu) +{ + return 0; +} + +static nmi_callback_t nmi_callback = dummy_nmi_callback; + static void default_do_nmi(struct pt_regs * regs) { unsigned char reason = 0; @@ -723,12 +730,11 @@ static void default_do_nmi(struct pt_regs * regs) * Ok, so this is none of the documented NMI sources, * so it must be the NMI watchdog. */ - if (nmi_watchdog) { - nmi_watchdog_tick(regs, reason); + if (nmi_watchdog_tick(regs, reason)) return; - } #endif - unknown_nmi_error(reason, regs); + if (!rcu_dereference(nmi_callback)(regs, smp_processor_id())) + unknown_nmi_error(reason, regs); return; } if (notify_die(DIE_NMI, "nmi", regs, reason, 2, SIGINT) == NOTIFY_STOP) @@ -744,13 +750,6 @@ static void default_do_nmi(struct pt_regs * regs) reassert_nmi(); } -static int dummy_nmi_callback(struct pt_regs * regs, int cpu) -{ - return 0; -} - -static nmi_callback_t nmi_callback = dummy_nmi_callback; - fastcall void do_nmi(struct pt_regs * regs, long error_code) { int cpu; @@ -761,8 +760,7 @@ fastcall void do_nmi(struct pt_regs * regs, long error_code) ++nmi_count(cpu); - if (!rcu_dereference(nmi_callback)(regs, cpu)) - default_do_nmi(regs); + default_do_nmi(regs); nmi_exit(); } diff --git a/arch/x86_64/kernel/nmi.c b/arch/x86_64/kernel/nmi.c index d42374a952d7..f6b881b23a70 100644 --- a/arch/x86_64/kernel/nmi.c +++ b/arch/x86_64/kernel/nmi.c @@ -682,16 +682,18 @@ void touch_nmi_watchdog (void) touch_softlockup_watchdog(); } -void __kprobes nmi_watchdog_tick(struct pt_regs * regs, unsigned reason) +int __kprobes nmi_watchdog_tick(struct pt_regs * regs, unsigned reason) { int sum; int touched = 0; struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); u64 dummy; + int rc=0; /* check for other users first */ if (notify_die(DIE_NMI, "nmi", regs, reason, 2, SIGINT) == NOTIFY_STOP) { + rc = 1; touched = 1; } @@ -746,10 +748,18 @@ void __kprobes nmi_watchdog_tick(struct pt_regs * regs, unsigned reason) } /* start the cycle over again */ wrmsrl(wd->perfctr_msr, -((u64)cpu_khz * 1000 / nmi_hz)); - } + rc = 1; + } else if (nmi_watchdog == NMI_IO_APIC) { + /* don't know how to accurately check for this. + * just assume it was a watchdog timer interrupt + * This matches the old behaviour. + */ + rc = 1; + } else + printk(KERN_WARNING "Unknown enabled NMI hardware?!\n"); } done: - return; + return rc; } static __kprobes int dummy_nmi_callback(struct pt_regs * regs, int cpu) @@ -761,15 +771,17 @@ static nmi_callback_t nmi_callback = dummy_nmi_callback; asmlinkage __kprobes void do_nmi(struct pt_regs * regs, long error_code) { - int cpu = safe_smp_processor_id(); - nmi_enter(); add_pda(__nmi_count,1); - if (!rcu_dereference(nmi_callback)(regs, cpu)) - default_do_nmi(regs); + default_do_nmi(regs); nmi_exit(); } +int do_nmi_callback(struct pt_regs * regs, int cpu) +{ + return rcu_dereference(nmi_callback)(regs, cpu); +} + void set_nmi_callback(nmi_callback_t callback) { vmalloc_sync_all(); diff --git a/arch/x86_64/kernel/traps.c b/arch/x86_64/kernel/traps.c index b1249774d1e8..42bc070fdf11 100644 --- a/arch/x86_64/kernel/traps.c +++ b/arch/x86_64/kernel/traps.c @@ -781,12 +781,12 @@ asmlinkage __kprobes void default_do_nmi(struct pt_regs *regs) * Ok, so this is none of the documented NMI sources, * so it must be the NMI watchdog. */ - if (nmi_watchdog > 0) { - nmi_watchdog_tick(regs,reason); + if (nmi_watchdog_tick(regs,reason)) return; - } + if (!do_nmi_callback(regs,cpu)) #endif - unknown_nmi_error(reason, regs); + unknown_nmi_error(reason, regs); + return; } if (notify_die(DIE_NMI, "nmi", regs, reason, 2, SIGINT) == NOTIFY_STOP) diff --git a/include/asm-i386/nmi.h b/include/asm-i386/nmi.h index 4cda6801ecb8..da0e0b4e9139 100644 --- a/include/asm-i386/nmi.h +++ b/include/asm-i386/nmi.h @@ -37,7 +37,7 @@ extern int reserve_lapic_nmi(void); extern void release_lapic_nmi(void); extern void disable_timer_nmi_watchdog(void); extern void enable_timer_nmi_watchdog(void); -extern void nmi_watchdog_tick (struct pt_regs * regs, unsigned reason); +extern int nmi_watchdog_tick (struct pt_regs * regs, unsigned reason); extern atomic_t nmi_active; extern unsigned int nmi_watchdog; diff --git a/include/asm-x86_64/nmi.h b/include/asm-x86_64/nmi.h index 5918136fd853..8f02a2a416e6 100644 --- a/include/asm-x86_64/nmi.h +++ b/include/asm-x86_64/nmi.h @@ -26,6 +26,14 @@ void set_nmi_callback(nmi_callback_t callback); */ void unset_nmi_callback(void); +/** + * do_nmi_callback + * + * Check to see if a callback exists and execute it. Return 1 + * if the handler exists and was handled successfully. + */ +int do_nmi_callback(struct pt_regs *regs, int cpu); + #ifdef CONFIG_PM /** Replace the PM callback routine for NMI. */ @@ -68,7 +76,7 @@ extern int reserve_lapic_nmi(void); extern void release_lapic_nmi(void); extern void disable_timer_nmi_watchdog(void); extern void enable_timer_nmi_watchdog(void); -extern void nmi_watchdog_tick (struct pt_regs * regs, unsigned reason); +extern int nmi_watchdog_tick (struct pt_regs * regs, unsigned reason); extern void nmi_watchdog_default(void); extern int setup_nmi_watchdog(char *); -- cgit v1.2.3 From 1d001df19d5323e642ba8ac821c713675ebccd82 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Tue, 26 Sep 2006 10:52:26 +0200 Subject: [PATCH] Add TIF_RESTORE_SIGMASK We need TIF_RESTORE_SIGMASK in order to support ppoll() and pselect() system calls. This patch originally came from Andi, and was based heavily on David Howells' implementation of same on i386. I fixed a typo which was causing do_signal() to use the wrong signal mask. Signed-off-by: David Woodhouse Signed-off-by: Andi Kleen --- arch/x86_64/ia32/ia32_signal.c | 28 ++++++-------- arch/x86_64/kernel/signal.c | 82 +++++++++++++++++----------------------- include/asm-x86_64/signal.h | 4 -- include/asm-x86_64/thread_info.h | 2 + include/asm-x86_64/unistd.h | 1 + 5 files changed, 49 insertions(+), 68 deletions(-) (limited to 'include') diff --git a/arch/x86_64/ia32/ia32_signal.c b/arch/x86_64/ia32/ia32_signal.c index 25e5ca22204c..549de439fb2d 100644 --- a/arch/x86_64/ia32/ia32_signal.c +++ b/arch/x86_64/ia32/ia32_signal.c @@ -113,25 +113,19 @@ int copy_siginfo_from_user32(siginfo_t *to, compat_siginfo_t __user *from) } asmlinkage long -sys32_sigsuspend(int history0, int history1, old_sigset_t mask, - struct pt_regs *regs) +sys32_sigsuspend(int history0, int history1, old_sigset_t mask) { - sigset_t saveset; - mask &= _BLOCKABLE; spin_lock_irq(¤t->sighand->siglock); - saveset = current->blocked; + current->saved_sigmask = current->blocked; siginitset(¤t->blocked, mask); recalc_sigpending(); spin_unlock_irq(¤t->sighand->siglock); - regs->rax = -EINTR; - while (1) { - current->state = TASK_INTERRUPTIBLE; - schedule(); - if (do_signal(regs, &saveset)) - return -EINTR; - } + current->state = TASK_INTERRUPTIBLE; + schedule(); + set_thread_flag(TIF_RESTORE_SIGMASK); + return -ERESTARTNOHAND; } asmlinkage long @@ -508,11 +502,11 @@ int ia32_setup_frame(int sig, struct k_sigaction *ka, current->comm, current->pid, frame, regs->rip, frame->pretcode); #endif - return 1; + return 0; give_sigsegv: force_sigsegv(sig, current); - return 0; + return -EFAULT; } int ia32_setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info, @@ -595,7 +589,7 @@ int ia32_setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info, regs->ss = __USER32_DS; set_fs(USER_DS); - regs->eflags &= ~TF_MASK; + regs->eflags &= ~TF_MASK; if (test_thread_flag(TIF_SINGLESTEP)) ptrace_notify(SIGTRAP); @@ -604,9 +598,9 @@ int ia32_setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info, current->comm, current->pid, frame, regs->rip, frame->pretcode); #endif - return 1; + return 0; give_sigsegv: force_sigsegv(sig, current); - return 0; + return -EFAULT; } diff --git a/arch/x86_64/kernel/signal.c b/arch/x86_64/kernel/signal.c index 28161170fb0a..7f58bc9a056d 100644 --- a/arch/x86_64/kernel/signal.c +++ b/arch/x86_64/kernel/signal.c @@ -37,37 +37,6 @@ int ia32_setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info, int ia32_setup_frame(int sig, struct k_sigaction *ka, sigset_t *set, struct pt_regs * regs); -asmlinkage long -sys_rt_sigsuspend(sigset_t __user *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); -#ifdef DEBUG_SIG - printk("rt_sigsuspend savset(%lx) newset(%lx) regs(%p) rip(%lx)\n", - saveset, newset, regs, regs->rip); -#endif - regs->rax = -EINTR; - while (1) { - current->state = TASK_INTERRUPTIBLE; - schedule(); - if (do_signal(regs, &saveset)) - return -EINTR; - } -} - asmlinkage long sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss, struct pt_regs *regs) @@ -341,11 +310,11 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info, current->comm, current->pid, frame, regs->rip, frame->pretcode); #endif - return 1; + return 0; give_sigsegv: force_sigsegv(sig, current); - return 0; + return -EFAULT; } /* @@ -408,7 +377,7 @@ handle_signal(unsigned long sig, siginfo_t *info, struct k_sigaction *ka, #endif ret = setup_rt_frame(sig, ka, info, oldset, regs); - if (ret) { + if (ret == 0) { spin_lock_irq(¤t->sighand->siglock); sigorsets(¤t->blocked,¤t->blocked,&ka->sa.sa_mask); if (!(ka->sa.sa_flags & SA_NODEFER)) @@ -425,11 +394,12 @@ handle_signal(unsigned long sig, siginfo_t *info, struct k_sigaction *ka, * want to handle. Thus you cannot kill init even with a SIGKILL even by * mistake. */ -int do_signal(struct pt_regs *regs, sigset_t *oldset) +static void do_signal(struct pt_regs *regs) { struct k_sigaction ka; siginfo_t info; int signr; + sigset_t *oldset; /* * We want the common case to go fast, which @@ -438,9 +408,11 @@ int do_signal(struct pt_regs *regs, sigset_t *oldset) * if so. */ if (!user_mode(regs)) - return 1; + return; - if (!oldset) + if (test_thread_flag(TIF_RESTORE_SIGMASK)) + oldset = ¤t->saved_sigmask; + else oldset = ¤t->blocked; signr = get_signal_to_deliver(&info, &ka, regs, NULL); @@ -454,30 +426,46 @@ int do_signal(struct pt_regs *regs, sigset_t *oldset) set_debugreg(current->thread.debugreg7, 7); /* Whee! Actually deliver the signal. */ - return handle_signal(signr, &info, &ka, oldset, regs); + if (handle_signal(signr, &info, &ka, oldset, regs) == 0) { + /* a signal was successfully delivered; the saved + * sigmask will have been stored in the signal frame, + * and will be restored by sigreturn, so we can simply + * clear the TIF_RESTORE_SIGMASK flag */ + clear_thread_flag(TIF_RESTORE_SIGMASK); + } + return; } /* Did we come from a system call? */ if ((long)regs->orig_rax >= 0) { /* Restart the system call - no handlers present */ long res = regs->rax; - if (res == -ERESTARTNOHAND || - res == -ERESTARTSYS || - res == -ERESTARTNOINTR) { + switch (res) { + case -ERESTARTNOHAND: + case -ERESTARTSYS: + case -ERESTARTNOINTR: regs->rax = regs->orig_rax; regs->rip -= 2; - } - if (regs->rax == (unsigned long)-ERESTART_RESTARTBLOCK) { + break; + case -ERESTART_RESTARTBLOCK: regs->rax = test_thread_flag(TIF_IA32) ? __NR_ia32_restart_syscall : __NR_restart_syscall; regs->rip -= 2; + break; } } - return 0; + + /* if there's no signal to deliver, we just put the saved sigmask + back. */ + if (test_thread_flag(TIF_RESTORE_SIGMASK)) { + clear_thread_flag(TIF_RESTORE_SIGMASK); + sigprocmask(SIG_SETMASK, ¤t->saved_sigmask, NULL); + } } -void do_notify_resume(struct pt_regs *regs, sigset_t *oldset, __u32 thread_info_flags) +void +do_notify_resume(struct pt_regs *regs, void *unused, __u32 thread_info_flags) { #ifdef DEBUG_SIG printk("do_notify_resume flags:%x rip:%lx rsp:%lx caller:%lx pending:%lx\n", @@ -491,8 +479,8 @@ void do_notify_resume(struct pt_regs *regs, sigset_t *oldset, __u32 thread_info_ } /* deal with pending signal delivery */ - if (thread_info_flags & _TIF_SIGPENDING) - do_signal(regs,oldset); + if (thread_info_flags & (_TIF_SIGPENDING|_TIF_RESTORE_SIGMASK)) + do_signal(regs); } void signal_fault(struct pt_regs *regs, void __user *frame, char *where) diff --git a/include/asm-x86_64/signal.h b/include/asm-x86_64/signal.h index 3ede2a61973a..4581f978b299 100644 --- a/include/asm-x86_64/signal.h +++ b/include/asm-x86_64/signal.h @@ -24,10 +24,6 @@ typedef struct { } sigset_t; -struct pt_regs; -asmlinkage int do_signal(struct pt_regs *regs, sigset_t *oldset); - - #else /* Here we must cater to libcs that poke about in kernel headers. */ diff --git a/include/asm-x86_64/thread_info.h b/include/asm-x86_64/thread_info.h index 2029b00351f3..790c512a4369 100644 --- a/include/asm-x86_64/thread_info.h +++ b/include/asm-x86_64/thread_info.h @@ -114,6 +114,7 @@ static inline struct thread_info *stack_thread_info(void) #define TIF_IRET 5 /* force IRET */ #define TIF_SYSCALL_AUDIT 7 /* syscall auditing active */ #define TIF_SECCOMP 8 /* secure computing */ +#define TIF_RESTORE_SIGMASK 9 /* restore signal mask in do_signal */ /* 16 free */ #define TIF_IA32 17 /* 32bit process */ #define TIF_FORK 18 /* ret_from_fork */ @@ -128,6 +129,7 @@ static inline struct thread_info *stack_thread_info(void) #define _TIF_IRET (1< Date: Tue, 26 Sep 2006 10:52:27 +0200 Subject: [PATCH] Add ppoll/pselect syscalls Needed TIF_RESTORE_SIGMASK first Signed-off-by: Andi Kleen --- arch/x86_64/ia32/ia32entry.S | 4 ++-- include/asm-x86_64/unistd.h | 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-) (limited to 'include') diff --git a/arch/x86_64/ia32/ia32entry.S b/arch/x86_64/ia32/ia32entry.S index 5d4a7d125ed0..30ed0f6f4a2b 100644 --- a/arch/x86_64/ia32/ia32entry.S +++ b/arch/x86_64/ia32/ia32entry.S @@ -703,8 +703,8 @@ ia32_sys_call_table: .quad sys_readlinkat /* 305 */ .quad sys_fchmodat .quad sys_faccessat - .quad quiet_ni_syscall /* pselect6 for now */ - .quad quiet_ni_syscall /* ppoll for now */ + .quad compat_sys_pselect6 + .quad compat_sys_ppoll .quad sys_unshare /* 310 */ .quad compat_sys_set_robust_list .quad compat_sys_get_robust_list diff --git a/include/asm-x86_64/unistd.h b/include/asm-x86_64/unistd.h index f266de294003..eeb98c168e98 100644 --- a/include/asm-x86_64/unistd.h +++ b/include/asm-x86_64/unistd.h @@ -600,9 +600,9 @@ __SYSCALL(__NR_fchmodat, sys_fchmodat) #define __NR_faccessat 269 __SYSCALL(__NR_faccessat, sys_faccessat) #define __NR_pselect6 270 -__SYSCALL(__NR_pselect6, sys_ni_syscall) /* for now */ +__SYSCALL(__NR_pselect6, sys_pselect6) #define __NR_ppoll 271 -__SYSCALL(__NR_ppoll, sys_ni_syscall) /* for now */ +__SYSCALL(__NR_ppoll, sys_ppoll) #define __NR_unshare 272 __SYSCALL(__NR_unshare, sys_unshare) #define __NR_set_robust_list 273 -- cgit v1.2.3 From 2fbe7b25c8edaf2d10e6c1a4cc9f8afe714c4764 Mon Sep 17 00:00:00 2001 From: Don Zickus Date: Tue, 26 Sep 2006 10:52:27 +0200 Subject: [PATCH] i386/x86-64: Remove un/set_nmi_callback and reserve/release_lapic_nmi functions Removes the un/set_nmi_callback and reserve/release_lapic_nmi functions as they are no longer needed. The various subsystems are modified to register with the die_notifier instead. Also includes compile fixes by Andrew Morton. Signed-off-by: Don Zickus Signed-off-by: Andi Kleen --- arch/i386/kernel/crash.c | 20 +++++++- arch/i386/kernel/nmi.c | 85 ++++--------------------------- arch/i386/kernel/traps.c | 23 +-------- arch/i386/oprofile/nmi_int.c | 47 ++++++++++------- arch/i386/oprofile/nmi_timer_int.c | 33 +++++++++--- arch/x86_64/kernel/crash.c | 20 +++++++- arch/x86_64/kernel/nmi.c | 102 +++---------------------------------- include/asm-i386/nmi.h | 21 ++------ include/asm-x86_64/nmi.h | 21 -------- kernel/sysctl.c | 4 +- 10 files changed, 116 insertions(+), 260 deletions(-) (limited to 'include') diff --git a/arch/i386/kernel/crash.c b/arch/i386/kernel/crash.c index 5b96f038367f..736c76d6b31d 100644 --- a/arch/i386/kernel/crash.c +++ b/arch/i386/kernel/crash.c @@ -22,6 +22,8 @@ #include #include #include +#include + #include @@ -93,9 +95,18 @@ static void crash_save_self(struct pt_regs *regs) #if defined(CONFIG_SMP) && defined(CONFIG_X86_LOCAL_APIC) static atomic_t waiting_for_crash_ipi; -static int crash_nmi_callback(struct pt_regs *regs, int cpu) +static int crash_nmi_callback(struct notifier_block *self, + unsigned long val, void *data) { + struct pt_regs *regs; struct pt_regs fixed_regs; + int cpu; + + if (val != DIE_NMI) + return NOTIFY_OK; + + regs = ((struct die_args *)data)->regs; + cpu = raw_smp_processor_id(); /* Don't do anything if this handler is invoked on crashing cpu. * Otherwise, system will completely hang. Crashing cpu can get @@ -125,13 +136,18 @@ static void smp_send_nmi_allbutself(void) send_IPI_allbutself(NMI_VECTOR); } +static struct notifier_block crash_nmi_nb = { + .notifier_call = crash_nmi_callback, +}; + static void nmi_shootdown_cpus(void) { unsigned long msecs; atomic_set(&waiting_for_crash_ipi, num_online_cpus() - 1); /* Would it be better to replace the trap vector here? */ - set_nmi_callback(crash_nmi_callback); + if (register_die_notifier(&crash_nmi_nb)) + return; /* return what? */ /* Ensure the new callback function is set before sending * out the NMI */ diff --git a/arch/i386/kernel/nmi.c b/arch/i386/kernel/nmi.c index bd96ea4f2942..acd3fdea2a21 100644 --- a/arch/i386/kernel/nmi.c +++ b/arch/i386/kernel/nmi.c @@ -42,20 +42,6 @@ static DEFINE_PER_CPU(unsigned long, evntsel_nmi_owner[3]); */ #define NMI_MAX_COUNTER_BITS 66 -/* - * lapic_nmi_owner tracks the ownership of the lapic NMI hardware: - * - it may be reserved by some other driver, or not - * - when not reserved by some other driver, it may be used for - * the NMI watchdog, or not - * - * This is maintained separately from nmi_active because the NMI - * watchdog may also be driven from the I/O APIC timer. - */ -static DEFINE_SPINLOCK(lapic_nmi_owner_lock); -static unsigned int lapic_nmi_owner; -#define LAPIC_NMI_WATCHDOG (1<<0) -#define LAPIC_NMI_RESERVED (1<<1) - /* nmi_active: * >0: the lapic NMI watchdog is active, but can be disabled * <0: the lapic NMI watchdog has not been set up, and cannot @@ -325,33 +311,6 @@ static void enable_lapic_nmi_watchdog(void) touch_nmi_watchdog(); } -int reserve_lapic_nmi(void) -{ - unsigned int old_owner; - - spin_lock(&lapic_nmi_owner_lock); - old_owner = lapic_nmi_owner; - lapic_nmi_owner |= LAPIC_NMI_RESERVED; - spin_unlock(&lapic_nmi_owner_lock); - if (old_owner & LAPIC_NMI_RESERVED) - return -EBUSY; - if (old_owner & LAPIC_NMI_WATCHDOG) - disable_lapic_nmi_watchdog(); - return 0; -} - -void release_lapic_nmi(void) -{ - unsigned int new_owner; - - spin_lock(&lapic_nmi_owner_lock); - new_owner = lapic_nmi_owner & ~LAPIC_NMI_RESERVED; - lapic_nmi_owner = new_owner; - spin_unlock(&lapic_nmi_owner_lock); - if (new_owner & LAPIC_NMI_WATCHDOG) - enable_lapic_nmi_watchdog(); -} - void disable_timer_nmi_watchdog(void) { BUG_ON(nmi_watchdog != NMI_IO_APIC); @@ -866,6 +825,15 @@ done: return rc; } +int do_nmi_callback(struct pt_regs * regs, int cpu) +{ +#ifdef CONFIG_SYSCTL + if (unknown_nmi_panic) + return unknown_nmi_panic_callback(regs, cpu); +#endif + return 0; +} + #ifdef CONFIG_SYSCTL static int unknown_nmi_panic_callback(struct pt_regs *regs, int cpu) @@ -873,37 +841,8 @@ static int unknown_nmi_panic_callback(struct pt_regs *regs, int cpu) unsigned char reason = get_nmi_reason(); char buf[64]; - if (!(reason & 0xc0)) { - sprintf(buf, "NMI received for unknown reason %02x\n", reason); - die_nmi(regs, buf); - } - return 0; -} - -/* - * proc handler for /proc/sys/kernel/unknown_nmi_panic - */ -int proc_unknown_nmi_panic(ctl_table *table, int write, struct file *file, - void __user *buffer, size_t *length, loff_t *ppos) -{ - int old_state; - - old_state = unknown_nmi_panic; - proc_dointvec(table, write, file, buffer, length, ppos); - if (!!old_state == !!unknown_nmi_panic) - return 0; - - if (unknown_nmi_panic) { - if (reserve_lapic_nmi() < 0) { - unknown_nmi_panic = 0; - return -EBUSY; - } else { - set_nmi_callback(unknown_nmi_panic_callback); - } - } else { - release_lapic_nmi(); - unset_nmi_callback(); - } + sprintf(buf, "NMI received for unknown reason %02x\n", reason); + die_nmi(regs, buf); return 0; } @@ -917,7 +856,5 @@ EXPORT_SYMBOL(reserve_perfctr_nmi); EXPORT_SYMBOL(release_perfctr_nmi); EXPORT_SYMBOL(reserve_evntsel_nmi); EXPORT_SYMBOL(release_evntsel_nmi); -EXPORT_SYMBOL(reserve_lapic_nmi); -EXPORT_SYMBOL(release_lapic_nmi); EXPORT_SYMBOL(disable_timer_nmi_watchdog); EXPORT_SYMBOL(enable_timer_nmi_watchdog); diff --git a/arch/i386/kernel/traps.c b/arch/i386/kernel/traps.c index 282f0bd40dfd..7db664d0b25c 100644 --- a/arch/i386/kernel/traps.c +++ b/arch/i386/kernel/traps.c @@ -706,13 +706,6 @@ void die_nmi (struct pt_regs *regs, const char *msg) do_exit(SIGSEGV); } -static int dummy_nmi_callback(struct pt_regs * regs, int cpu) -{ - return 0; -} - -static nmi_callback_t nmi_callback = dummy_nmi_callback; - static void default_do_nmi(struct pt_regs * regs) { unsigned char reason = 0; @@ -732,9 +725,10 @@ static void default_do_nmi(struct pt_regs * regs) */ if (nmi_watchdog_tick(regs, reason)) return; + if (!do_nmi_callback(regs, smp_processor_id())) #endif - if (!rcu_dereference(nmi_callback)(regs, smp_processor_id())) unknown_nmi_error(reason, regs); + return; } if (notify_die(DIE_NMI, "nmi", regs, reason, 2, SIGINT) == NOTIFY_STOP) @@ -765,19 +759,6 @@ fastcall void do_nmi(struct pt_regs * regs, long error_code) nmi_exit(); } -void set_nmi_callback(nmi_callback_t callback) -{ - vmalloc_sync_all(); - rcu_assign_pointer(nmi_callback, callback); -} -EXPORT_SYMBOL_GPL(set_nmi_callback); - -void unset_nmi_callback(void) -{ - nmi_callback = dummy_nmi_callback; -} -EXPORT_SYMBOL_GPL(unset_nmi_callback); - #ifdef CONFIG_KPROBES fastcall void __kprobes do_int3(struct pt_regs *regs, long error_code) { diff --git a/arch/i386/oprofile/nmi_int.c b/arch/i386/oprofile/nmi_int.c index 8710ca081b1e..b3610188bcf0 100644 --- a/arch/i386/oprofile/nmi_int.c +++ b/arch/i386/oprofile/nmi_int.c @@ -17,14 +17,15 @@ #include #include #include +#include #include "op_counter.h" #include "op_x86_model.h" - + static struct op_x86_model_spec const * model; static struct op_msrs cpu_msrs[NR_CPUS]; static unsigned long saved_lvtpc[NR_CPUS]; - + static int nmi_start(void); static void nmi_stop(void); @@ -82,13 +83,24 @@ static void exit_driverfs(void) #define exit_driverfs() do { } while (0) #endif /* CONFIG_PM */ - -static int nmi_callback(struct pt_regs * regs, int cpu) +int profile_exceptions_notify(struct notifier_block *self, + unsigned long val, void *data) { - return model->check_ctrs(regs, &cpu_msrs[cpu]); + struct die_args *args = (struct die_args *)data; + int ret = NOTIFY_DONE; + int cpu = smp_processor_id(); + + switch(val) { + case DIE_NMI: + if (model->check_ctrs(args->regs, &cpu_msrs[cpu])) + ret = NOTIFY_STOP; + break; + default: + break; + } + return ret; } - - + static void nmi_cpu_save_registers(struct op_msrs * msrs) { unsigned int const nr_ctrs = model->num_counters; @@ -174,27 +186,29 @@ static void nmi_cpu_setup(void * dummy) apic_write(APIC_LVTPC, APIC_DM_NMI); } +static struct notifier_block profile_exceptions_nb = { + .notifier_call = profile_exceptions_notify, + .next = NULL, + .priority = 0 +}; static int nmi_setup(void) { + int err=0; + if (!allocate_msrs()) return -ENOMEM; - /* We walk a thin line between law and rape here. - * We need to be careful to install our NMI handler - * without actually triggering any NMIs as this will - * break the core code horrifically. - */ - if (reserve_lapic_nmi() < 0) { + if ((err = register_die_notifier(&profile_exceptions_nb))){ free_msrs(); - return -EBUSY; + return err; } + /* We need to serialize save and setup for HT because the subset * of msrs are distinct for save and setup operations */ on_each_cpu(nmi_save_registers, NULL, 0, 1); on_each_cpu(nmi_cpu_setup, NULL, 0, 1); - set_nmi_callback(nmi_callback); nmi_enabled = 1; return 0; } @@ -250,8 +264,7 @@ static void nmi_shutdown(void) { nmi_enabled = 0; on_each_cpu(nmi_cpu_shutdown, NULL, 0, 1); - unset_nmi_callback(); - release_lapic_nmi(); + unregister_die_notifier(&profile_exceptions_nb); free_msrs(); } diff --git a/arch/i386/oprofile/nmi_timer_int.c b/arch/i386/oprofile/nmi_timer_int.c index a33a73bb502d..93ca48f804ac 100644 --- a/arch/i386/oprofile/nmi_timer_int.c +++ b/arch/i386/oprofile/nmi_timer_int.c @@ -17,32 +17,49 @@ #include #include #include +#include -static int nmi_timer_callback(struct pt_regs * regs, int cpu) +int profile_timer_exceptions_notify(struct notifier_block *self, + unsigned long val, void *data) { - oprofile_add_sample(regs, 0); - return 1; + struct die_args *args = (struct die_args *)data; + int ret = NOTIFY_DONE; + + switch(val) { + case DIE_NMI: + oprofile_add_sample(args->regs, 0); + ret = NOTIFY_STOP; + break; + default: + break; + } + return ret; } +static struct notifier_block profile_timer_exceptions_nb = { + .notifier_call = profile_timer_exceptions_notify, + .next = NULL, + .priority = 0 +}; + static int timer_start(void) { - disable_timer_nmi_watchdog(); - set_nmi_callback(nmi_timer_callback); + if (register_die_notifier(&profile_timer_exceptions_nb)) + return 1; return 0; } static void timer_stop(void) { - enable_timer_nmi_watchdog(); - unset_nmi_callback(); + unregister_die_notifier(&profile_timer_exceptions_nb); synchronize_sched(); /* Allow already-started NMIs to complete. */ } int __init op_nmi_timer_init(struct oprofile_operations * ops) { - if (atomic_read(&nmi_active) <= 0) + if ((nmi_watchdog != NMI_IO_APIC) || (atomic_read(&nmi_active) <= 0)) return -ENODEV; ops->start = timer_start; diff --git a/arch/x86_64/kernel/crash.c b/arch/x86_64/kernel/crash.c index d8d5750d6106..44c8af65325e 100644 --- a/arch/x86_64/kernel/crash.c +++ b/arch/x86_64/kernel/crash.c @@ -23,6 +23,7 @@ #include #include #include +#include /* This keeps a track of which one is crashing cpu. */ static int crashing_cpu; @@ -95,8 +96,18 @@ static void crash_save_self(struct pt_regs *regs) #ifdef CONFIG_SMP static atomic_t waiting_for_crash_ipi; -static int crash_nmi_callback(struct pt_regs *regs, int cpu) +static int crash_nmi_callback(struct notifier_block *self, + unsigned long val, void *data) { + struct pt_regs *regs; + int cpu; + + if (val != DIE_NMI) + return NOTIFY_OK; + + regs = ((struct die_args *)data)->regs; + cpu = raw_smp_processor_id(); + /* * Don't do anything if this handler is invoked on crashing cpu. * Otherwise, system will completely hang. Crashing cpu can get @@ -127,12 +138,17 @@ static void smp_send_nmi_allbutself(void) * cpu hotplug shouldn't matter. */ +static struct notifier_block crash_nmi_nb = { + .notifier_call = crash_nmi_callback, +}; + static void nmi_shootdown_cpus(void) { unsigned long msecs; atomic_set(&waiting_for_crash_ipi, num_online_cpus() - 1); - set_nmi_callback(crash_nmi_callback); + if (register_die_notifier(&crash_nmi_nb)) + return; /* return what? */ /* * Ensure the new callback function is set before sending diff --git a/arch/x86_64/kernel/nmi.c b/arch/x86_64/kernel/nmi.c index f6b881b23a70..9d175dcf3a2d 100644 --- a/arch/x86_64/kernel/nmi.c +++ b/arch/x86_64/kernel/nmi.c @@ -41,20 +41,6 @@ static DEFINE_PER_CPU(unsigned, evntsel_nmi_owner[2]); */ #define NMI_MAX_COUNTER_BITS 66 -/* - * lapic_nmi_owner tracks the ownership of the lapic NMI hardware: - * - it may be reserved by some other driver, or not - * - when not reserved by some other driver, it may be used for - * the NMI watchdog, or not - * - * This is maintained separately from nmi_active because the NMI - * watchdog may also be driven from the I/O APIC timer. - */ -static DEFINE_SPINLOCK(lapic_nmi_owner_lock); -static unsigned int lapic_nmi_owner; -#define LAPIC_NMI_WATCHDOG (1<<0) -#define LAPIC_NMI_RESERVED (1<<1) - /* nmi_active: * >0: the lapic NMI watchdog is active, but can be disabled * <0: the lapic NMI watchdog has not been set up, and cannot @@ -321,33 +307,6 @@ static void enable_lapic_nmi_watchdog(void) touch_nmi_watchdog(); } -int reserve_lapic_nmi(void) -{ - unsigned int old_owner; - - spin_lock(&lapic_nmi_owner_lock); - old_owner = lapic_nmi_owner; - lapic_nmi_owner |= LAPIC_NMI_RESERVED; - spin_unlock(&lapic_nmi_owner_lock); - if (old_owner & LAPIC_NMI_RESERVED) - return -EBUSY; - if (old_owner & LAPIC_NMI_WATCHDOG) - disable_lapic_nmi_watchdog(); - return 0; -} - -void release_lapic_nmi(void) -{ - unsigned int new_owner; - - spin_lock(&lapic_nmi_owner_lock); - new_owner = lapic_nmi_owner & ~LAPIC_NMI_RESERVED; - lapic_nmi_owner = new_owner; - spin_unlock(&lapic_nmi_owner_lock); - if (new_owner & LAPIC_NMI_WATCHDOG) - enable_lapic_nmi_watchdog(); -} - void disable_timer_nmi_watchdog(void) { BUG_ON(nmi_watchdog != NMI_IO_APIC); @@ -762,13 +721,6 @@ done: return rc; } -static __kprobes int dummy_nmi_callback(struct pt_regs * regs, int cpu) -{ - return 0; -} - -static nmi_callback_t nmi_callback = dummy_nmi_callback; - asmlinkage __kprobes void do_nmi(struct pt_regs * regs, long error_code) { nmi_enter(); @@ -779,21 +731,12 @@ asmlinkage __kprobes void do_nmi(struct pt_regs * regs, long error_code) int do_nmi_callback(struct pt_regs * regs, int cpu) { - return rcu_dereference(nmi_callback)(regs, cpu); -} - -void set_nmi_callback(nmi_callback_t callback) -{ - vmalloc_sync_all(); - rcu_assign_pointer(nmi_callback, callback); -} -EXPORT_SYMBOL_GPL(set_nmi_callback); - -void unset_nmi_callback(void) -{ - nmi_callback = dummy_nmi_callback; +#ifdef CONFIG_SYSCTL + if (unknown_nmi_panic) + return unknown_nmi_panic_callback(regs, cpu); +#endif + return 0; } -EXPORT_SYMBOL_GPL(unset_nmi_callback); #ifdef CONFIG_SYSCTL @@ -802,37 +745,8 @@ static int unknown_nmi_panic_callback(struct pt_regs *regs, int cpu) unsigned char reason = get_nmi_reason(); char buf[64]; - if (!(reason & 0xc0)) { - sprintf(buf, "NMI received for unknown reason %02x\n", reason); - die_nmi(buf,regs); - } - return 0; -} - -/* - * proc handler for /proc/sys/kernel/unknown_nmi_panic - */ -int proc_unknown_nmi_panic(struct ctl_table *table, int write, struct file *file, - void __user *buffer, size_t *length, loff_t *ppos) -{ - int old_state; - - old_state = unknown_nmi_panic; - proc_dointvec(table, write, file, buffer, length, ppos); - if (!!old_state == !!unknown_nmi_panic) - return 0; - - if (unknown_nmi_panic) { - if (reserve_lapic_nmi() < 0) { - unknown_nmi_panic = 0; - return -EBUSY; - } else { - set_nmi_callback(unknown_nmi_panic_callback); - } - } else { - release_lapic_nmi(); - unset_nmi_callback(); - } + sprintf(buf, "NMI received for unknown reason %02x\n", reason); + die_nmi(buf,regs); return 0; } @@ -846,8 +760,6 @@ EXPORT_SYMBOL(reserve_perfctr_nmi); EXPORT_SYMBOL(release_perfctr_nmi); EXPORT_SYMBOL(reserve_evntsel_nmi); EXPORT_SYMBOL(release_evntsel_nmi); -EXPORT_SYMBOL(reserve_lapic_nmi); -EXPORT_SYMBOL(release_lapic_nmi); EXPORT_SYMBOL(disable_timer_nmi_watchdog); EXPORT_SYMBOL(enable_timer_nmi_watchdog); EXPORT_SYMBOL(touch_nmi_watchdog); diff --git a/include/asm-i386/nmi.h b/include/asm-i386/nmi.h index da0e0b4e9139..34d6bf063b6e 100644 --- a/include/asm-i386/nmi.h +++ b/include/asm-i386/nmi.h @@ -6,24 +6,13 @@ #include -struct pt_regs; - -typedef int (*nmi_callback_t)(struct pt_regs * regs, int cpu); - -/** - * set_nmi_callback - * - * Set a handler for an NMI. Only one handler may be - * set. Return 1 if the NMI was handled. - */ -void set_nmi_callback(nmi_callback_t callback); - /** - * unset_nmi_callback + * do_nmi_callback * - * Remove the handler previously set. + * Check to see if a callback exists and execute it. Return 1 + * if the handler exists and was handled successfully. */ -void unset_nmi_callback(void); +int do_nmi_callback(struct pt_regs *regs, int cpu); extern int avail_to_resrv_perfctr_nmi_bit(unsigned int); extern int avail_to_resrv_perfctr_nmi(unsigned int); @@ -33,8 +22,6 @@ extern int reserve_evntsel_nmi(unsigned int); extern void release_evntsel_nmi(unsigned int); extern void setup_apic_nmi_watchdog (void *); -extern int reserve_lapic_nmi(void); -extern void release_lapic_nmi(void); extern void disable_timer_nmi_watchdog(void); extern void enable_timer_nmi_watchdog(void); extern int nmi_watchdog_tick (struct pt_regs * regs, unsigned reason); diff --git a/include/asm-x86_64/nmi.h b/include/asm-x86_64/nmi.h index 8f02a2a416e6..8818c39d34e0 100644 --- a/include/asm-x86_64/nmi.h +++ b/include/asm-x86_64/nmi.h @@ -7,25 +7,6 @@ #include #include -struct pt_regs; - -typedef int (*nmi_callback_t)(struct pt_regs * regs, int cpu); - -/** - * set_nmi_callback - * - * Set a handler for an NMI. Only one handler may be - * set. Return 1 if the NMI was handled. - */ -void set_nmi_callback(nmi_callback_t callback); - -/** - * unset_nmi_callback - * - * Remove the handler previously set. - */ -void unset_nmi_callback(void); - /** * do_nmi_callback * @@ -72,8 +53,6 @@ extern int reserve_evntsel_nmi(unsigned int); extern void release_evntsel_nmi(unsigned int); extern void setup_apic_nmi_watchdog (void *); -extern int reserve_lapic_nmi(void); -extern void release_lapic_nmi(void); extern void disable_timer_nmi_watchdog(void); extern void enable_timer_nmi_watchdog(void); extern int nmi_watchdog_tick (struct pt_regs * regs, unsigned reason); diff --git a/kernel/sysctl.c b/kernel/sysctl.c index 362a0cc37138..83f168361624 100644 --- a/kernel/sysctl.c +++ b/kernel/sysctl.c @@ -76,8 +76,6 @@ extern int compat_log; #if defined(CONFIG_X86_LOCAL_APIC) && defined(CONFIG_X86) int unknown_nmi_panic; -extern int proc_unknown_nmi_panic(ctl_table *, int, struct file *, - void __user *, size_t *, loff_t *); #endif /* this is needed for the proc_dointvec_minmax for [fs_]overflow UID and GID */ @@ -628,7 +626,7 @@ static ctl_table kern_table[] = { .data = &unknown_nmi_panic, .maxlen = sizeof (int), .mode = 0644, - .proc_handler = &proc_unknown_nmi_panic, + .proc_handler = &proc_dointvec, }, #endif #if defined(CONFIG_X86) -- cgit v1.2.3 From 407984f1af259b31957c7c05075a454a751bb801 Mon Sep 17 00:00:00 2001 From: Don Zickus Date: Tue, 26 Sep 2006 10:52:27 +0200 Subject: [PATCH] x86: Add abilty to enable/disable nmi watchdog with sysctl Adds a new /proc/sys/kernel/nmi call that will enable/disable the nmi watchdog. Signed-off-by: Don Zickus Signed-off-by: Andi Kleen --- arch/i386/kernel/nmi.c | 52 ++++++++++++++++++++++++++++++++++++++++++++++++ arch/x86_64/kernel/nmi.c | 48 ++++++++++++++++++++++++++++++++++++++++++++ include/asm-i386/nmi.h | 1 + include/asm-x86_64/nmi.h | 1 + include/linux/sysctl.h | 1 + kernel/sysctl.c | 11 ++++++++++ 6 files changed, 114 insertions(+) (limited to 'include') diff --git a/arch/i386/kernel/nmi.c b/arch/i386/kernel/nmi.c index acd3fdea2a21..28065d0b71a9 100644 --- a/arch/i386/kernel/nmi.c +++ b/arch/i386/kernel/nmi.c @@ -846,6 +846,58 @@ static int unknown_nmi_panic_callback(struct pt_regs *regs, int cpu) return 0; } +/* + * proc handler for /proc/sys/kernel/nmi_watchdog + */ +int proc_nmi_enabled(struct ctl_table *table, int write, struct file *file, + void __user *buffer, size_t *length, loff_t *ppos) +{ + int old_state; + + nmi_watchdog_enabled = (atomic_read(&nmi_active) > 0) ? 1 : 0; + old_state = nmi_watchdog_enabled; + proc_dointvec(table, write, file, buffer, length, ppos); + if (!!old_state == !!nmi_watchdog_enabled) + return 0; + + if (atomic_read(&nmi_active) < 0) { + printk(KERN_WARNING "NMI watchdog is permanently disabled\n"); + return -EINVAL; + } + + if (nmi_watchdog == NMI_DEFAULT) { + if (nmi_known_cpu() > 0) + nmi_watchdog = NMI_LOCAL_APIC; + else + nmi_watchdog = NMI_IO_APIC; + } + + if (nmi_watchdog == NMI_LOCAL_APIC) + { + if (nmi_watchdog_enabled) + enable_lapic_nmi_watchdog(); + else + disable_lapic_nmi_watchdog(); + } else if (nmi_watchdog == NMI_IO_APIC) { + /* FIXME + * for some reason these functions don't work + */ + printk("Can not enable/disable NMI on IO APIC\n"); + return -EINVAL; +#if 0 + if (nmi_watchdog_enabled) + enable_timer_nmi_watchdog(); + else + disable_timer_nmi_watchdog(); +#endif + } else { + printk( KERN_WARNING + "NMI watchdog doesn't know what hardware to touch\n"); + return -EIO; + } + return 0; +} + #endif EXPORT_SYMBOL(nmi_active); diff --git a/arch/x86_64/kernel/nmi.c b/arch/x86_64/kernel/nmi.c index 9d175dcf3a2d..3a17411a9a19 100644 --- a/arch/x86_64/kernel/nmi.c +++ b/arch/x86_64/kernel/nmi.c @@ -750,6 +750,54 @@ static int unknown_nmi_panic_callback(struct pt_regs *regs, int cpu) return 0; } +/* + * proc handler for /proc/sys/kernel/nmi + */ +int proc_nmi_enabled(struct ctl_table *table, int write, struct file *file, + void __user *buffer, size_t *length, loff_t *ppos) +{ + int old_state; + + nmi_watchdog_enabled = (atomic_read(&nmi_active) > 0) ? 1 : 0; + old_state = nmi_watchdog_enabled; + proc_dointvec(table, write, file, buffer, length, ppos); + if (!!old_state == !!nmi_watchdog_enabled) + return 0; + + if (atomic_read(&nmi_active) < 0) { + printk( KERN_WARNING "NMI watchdog is permanently disabled\n"); + return -EINVAL; + } + + /* if nmi_watchdog is not set yet, then set it */ + nmi_watchdog_default(); + + if (nmi_watchdog == NMI_LOCAL_APIC) + { + if (nmi_watchdog_enabled) + enable_lapic_nmi_watchdog(); + else + disable_lapic_nmi_watchdog(); + } else if (nmi_watchdog == NMI_IO_APIC) { + /* FIXME + * for some reason these functions don't work + */ + printk("Can not enable/disable NMI on IO APIC\n"); + return -EIO; +#if 0 + if (nmi_watchdog_enabled) + enable_timer_nmi_watchdog(); + else + disable_timer_nmi_watchdog(); +#endif + } else { + printk(KERN_WARNING + "NMI watchdog doesn't know what hardware to touch\n"); + return -EIO; + } + return 0; +} + #endif EXPORT_SYMBOL(nmi_active); diff --git a/include/asm-i386/nmi.h b/include/asm-i386/nmi.h index 34d6bf063b6e..13b5d8311bf7 100644 --- a/include/asm-i386/nmi.h +++ b/include/asm-i386/nmi.h @@ -14,6 +14,7 @@ */ int do_nmi_callback(struct pt_regs *regs, int cpu); +extern int nmi_watchdog_enabled; extern int avail_to_resrv_perfctr_nmi_bit(unsigned int); extern int avail_to_resrv_perfctr_nmi(unsigned int); extern int reserve_perfctr_nmi(unsigned int); diff --git a/include/asm-x86_64/nmi.h b/include/asm-x86_64/nmi.h index 8818c39d34e0..2c23b0df87d2 100644 --- a/include/asm-x86_64/nmi.h +++ b/include/asm-x86_64/nmi.h @@ -43,6 +43,7 @@ extern void die_nmi(char *str, struct pt_regs *regs); extern int panic_on_timeout; extern int unknown_nmi_panic; +extern int nmi_watchdog_enabled; extern int check_nmi_watchdog(void); extern int avail_to_resrv_perfctr_nmi_bit(unsigned int); diff --git a/include/linux/sysctl.h b/include/linux/sysctl.h index 736ed917a4f8..ecb79ba52ae1 100644 --- a/include/linux/sysctl.h +++ b/include/linux/sysctl.h @@ -150,6 +150,7 @@ enum KERN_IA64_UNALIGNED=72, /* int: ia64 unaligned userland trap enable */ KERN_COMPAT_LOG=73, /* int: print compat layer messages */ KERN_MAX_LOCK_DEPTH=74, + KERN_NMI_WATCHDOG=75, /* int: enable/disable nmi watchdog */ }; diff --git a/kernel/sysctl.c b/kernel/sysctl.c index 83f168361624..040de6bd74dd 100644 --- a/kernel/sysctl.c +++ b/kernel/sysctl.c @@ -76,6 +76,9 @@ extern int compat_log; #if defined(CONFIG_X86_LOCAL_APIC) && defined(CONFIG_X86) int unknown_nmi_panic; +int nmi_watchdog_enabled; +extern int proc_nmi_enabled(struct ctl_table *, int , struct file *, + void __user *, size_t *, loff_t *); #endif /* this is needed for the proc_dointvec_minmax for [fs_]overflow UID and GID */ @@ -628,6 +631,14 @@ static ctl_table kern_table[] = { .mode = 0644, .proc_handler = &proc_dointvec, }, + { + .ctl_name = KERN_NMI_WATCHDOG, + .procname = "nmi_watchdog", + .data = &nmi_watchdog_enabled, + .maxlen = sizeof (int), + .mode = 0644, + .proc_handler = &proc_nmi_enabled, + }, #endif #if defined(CONFIG_X86) { -- cgit v1.2.3 From 8da5adda91df3d2fcc5300e68da491694c9af019 Mon Sep 17 00:00:00 2001 From: Don Zickus Date: Tue, 26 Sep 2006 10:52:27 +0200 Subject: [PATCH] x86: Allow users to force a panic on NMI To quote Alan Cox: The default Linux behaviour on an NMI of either memory or unknown is to continue operation. For many environments such as scientific computing it is preferable that the box is taken out and the error dealt with than an uncorrected parity/ECC error get propogated. A small number of systems do generate NMI's for bizarre random reasons such as power management so the default is unchanged. In other respects the new proc/sys entry works like the existing panic controls already in that directory. This is separate to the edac support - EDAC allows supported chipsets to handle ECC errors well, this change allows unsupported cases to at least panic rather than cause problems further down the line. Signed-off-by: Don Zickus Signed-off-by: Andi Kleen --- arch/i386/kernel/traps.c | 6 ++++++ arch/x86_64/kernel/traps.c | 6 ++++++ include/linux/kernel.h | 1 + include/linux/sysctl.h | 1 + kernel/panic.c | 1 + kernel/sysctl.c | 8 ++++++++ 6 files changed, 23 insertions(+) (limited to 'include') diff --git a/arch/i386/kernel/traps.c b/arch/i386/kernel/traps.c index 7db664d0b25c..2f6cb8276480 100644 --- a/arch/i386/kernel/traps.c +++ b/arch/i386/kernel/traps.c @@ -635,6 +635,8 @@ static void mem_parity_error(unsigned char reason, struct pt_regs * regs) "to continue\n"); printk(KERN_EMERG "You probably have a hardware problem with your RAM " "chips\n"); + if (panic_on_unrecovered_nmi) + panic("NMI: Not continuing"); /* Clear and disable the memory parity error line. */ clear_mem_error(reason); @@ -670,6 +672,10 @@ static void unknown_nmi_error(unsigned char reason, struct pt_regs * regs) reason, smp_processor_id()); printk("Dazed and confused, but trying to continue\n"); printk("Do you have a strange power saving mode enabled?\n"); + + if (panic_on_unrecovered_nmi) + panic("NMI: Not continuing"); + } static DEFINE_SPINLOCK(nmi_print_lock); diff --git a/arch/x86_64/kernel/traps.c b/arch/x86_64/kernel/traps.c index 42bc070fdf11..b18829db2a6a 100644 --- a/arch/x86_64/kernel/traps.c +++ b/arch/x86_64/kernel/traps.c @@ -732,6 +732,8 @@ mem_parity_error(unsigned char reason, struct pt_regs * regs) { printk("Uhhuh. NMI received. Dazed and confused, but trying to continue\n"); printk("You probably have a hardware problem with your RAM chips\n"); + if (panic_on_unrecovered_nmi) + panic("NMI: Not continuing"); /* Clear and disable the memory parity error line. */ reason = (reason & 0xf) | 4; @@ -757,6 +759,10 @@ unknown_nmi_error(unsigned char reason, struct pt_regs * regs) { printk("Uhhuh. NMI received for unknown reason %02x.\n", reason); printk("Dazed and confused, but trying to continue\n"); printk("Do you have a strange power saving mode enabled?\n"); + + if (panic_on_unrecovered_nmi) + panic("NMI: Not continuing"); + } /* Runs on IST stack. This code must keep interrupts off all the time. diff --git a/include/linux/kernel.h b/include/linux/kernel.h index 2b2ae4fdce8b..1ff9609300b4 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h @@ -186,6 +186,7 @@ extern void bust_spinlocks(int yes); extern int oops_in_progress; /* If set, an oops, panic(), BUG() or die() is in progress */ extern int panic_timeout; extern int panic_on_oops; +extern int panic_on_unrecovered_nmi; extern int tainted; extern const char *print_tainted(void); extern void add_taint(unsigned); diff --git a/include/linux/sysctl.h b/include/linux/sysctl.h index ecb79ba52ae1..432778446ad2 100644 --- a/include/linux/sysctl.h +++ b/include/linux/sysctl.h @@ -151,6 +151,7 @@ enum KERN_COMPAT_LOG=73, /* int: print compat layer messages */ KERN_MAX_LOCK_DEPTH=74, KERN_NMI_WATCHDOG=75, /* int: enable/disable nmi watchdog */ + KERN_PANIC_ON_NMI=76, /* int: whether we will panic on an unrecovered */ }; diff --git a/kernel/panic.c b/kernel/panic.c index 8010b9b17aca..d2db3e2209e0 100644 --- a/kernel/panic.c +++ b/kernel/panic.c @@ -21,6 +21,7 @@ #include int panic_on_oops; +int panic_on_unrecovered_nmi; int tainted; static int pause_on_oops; static int pause_on_oops_flag; diff --git a/kernel/sysctl.c b/kernel/sysctl.c index 040de6bd74dd..220e20564124 100644 --- a/kernel/sysctl.c +++ b/kernel/sysctl.c @@ -641,6 +641,14 @@ static ctl_table kern_table[] = { }, #endif #if defined(CONFIG_X86) + { + .ctl_name = KERN_PANIC_ON_NMI, + .procname = "panic_on_unrecovered_nmi", + .data = &panic_on_unrecovered_nmi, + .maxlen = sizeof(int), + .mode = 0644, + .proc_handler = &proc_dointvec, + }, { .ctl_name = KERN_BOOTLOADER_TYPE, .procname = "bootloader_type", -- cgit v1.2.3 From 4038f901cf102a40715b900984ed7540a9fa637f Mon Sep 17 00:00:00 2001 From: Shaohua Li Date: Tue, 26 Sep 2006 10:52:27 +0200 Subject: [PATCH] i386/x86-64: Fix NMI watchdog suspend/resume Making NMI suspend/resume work with SMP. We use CPU hotplug to offline APs in SMP suspend/resume. Only BSP executes sysdev's .suspend/.resume method. APs should follow CPU hotplug code path. And: +From: Don Zickus Makes the start/stop paths of nmi watchdog more robust to handle the suspend/resume cases more gracefully. AK: I merged the two patches together Signed-off-by: Shaohua Li Signed-off-by: Andi Kleen Cc: Don Zickus Cc: Andi Kleen Signed-off-by: Andrew Morton --- arch/i386/kernel/nmi.c | 33 ++++++++++++++++++++++++++------- arch/i386/kernel/smpboot.c | 3 ++- arch/x86_64/kernel/nmi.c | 33 ++++++++++++++++++++++++++------- arch/x86_64/kernel/smpboot.c | 2 ++ include/asm-i386/nmi.h | 1 + include/asm-x86_64/nmi.h | 1 + 6 files changed, 58 insertions(+), 15 deletions(-) (limited to 'include') diff --git a/arch/i386/kernel/nmi.c b/arch/i386/kernel/nmi.c index 6241e4448cab..8e4ed930ce6b 100644 --- a/arch/i386/kernel/nmi.c +++ b/arch/i386/kernel/nmi.c @@ -63,7 +63,6 @@ struct nmi_watchdog_ctlblk { static DEFINE_PER_CPU(struct nmi_watchdog_ctlblk, nmi_watchdog_ctlblk); /* local prototypes */ -static void stop_apic_nmi_watchdog(void *unused); static int unknown_nmi_panic_callback(struct pt_regs *regs, int cpu); extern void show_registers(struct pt_regs *regs); @@ -341,15 +340,20 @@ static int nmi_pm_active; /* nmi_active before suspend */ static int lapic_nmi_suspend(struct sys_device *dev, pm_message_t state) { + /* only CPU0 goes here, other CPUs should be offline */ nmi_pm_active = atomic_read(&nmi_active); - disable_lapic_nmi_watchdog(); + stop_apic_nmi_watchdog(NULL); + BUG_ON(atomic_read(&nmi_active) != 0); return 0; } static int lapic_nmi_resume(struct sys_device *dev) { - if (nmi_pm_active > 0) - enable_lapic_nmi_watchdog(); + /* only CPU0 goes here, other CPUs should be offline */ + if (nmi_pm_active > 0) { + setup_apic_nmi_watchdog(NULL); + touch_nmi_watchdog(); + } return 0; } @@ -626,11 +630,21 @@ static void stop_p4_watchdog(void) void setup_apic_nmi_watchdog (void *unused) { + struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); + /* only support LOCAL and IO APICs for now */ if ((nmi_watchdog != NMI_LOCAL_APIC) && (nmi_watchdog != NMI_IO_APIC)) return; + if (wd->enabled == 1) + return; + + /* cheap hack to support suspend/resume */ + /* if cpu0 is not active neither should the other cpus */ + if ((smp_processor_id() != 0) && (atomic_read(&nmi_active) <= 0)) + return; + if (nmi_watchdog == NMI_LOCAL_APIC) { switch (boot_cpu_data.x86_vendor) { case X86_VENDOR_AMD: @@ -663,17 +677,22 @@ void setup_apic_nmi_watchdog (void *unused) return; } } - __get_cpu_var(nmi_watchdog_ctlblk.enabled) = 1; + wd->enabled = 1; atomic_inc(&nmi_active); } -static void stop_apic_nmi_watchdog(void *unused) +void stop_apic_nmi_watchdog(void *unused) { + struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); + /* only support LOCAL and IO APICs for now */ if ((nmi_watchdog != NMI_LOCAL_APIC) && (nmi_watchdog != NMI_IO_APIC)) return; + if (wd->enabled == 0) + return; + if (nmi_watchdog == NMI_LOCAL_APIC) { switch (boot_cpu_data.x86_vendor) { case X86_VENDOR_AMD: @@ -697,7 +716,7 @@ static void stop_apic_nmi_watchdog(void *unused) return; } } - __get_cpu_var(nmi_watchdog_ctlblk.enabled) = 0; + wd->enabled = 0; atomic_dec(&nmi_active); } diff --git a/arch/i386/kernel/smpboot.c b/arch/i386/kernel/smpboot.c index efe07990e7fc..9367af76ce37 100644 --- a/arch/i386/kernel/smpboot.c +++ b/arch/i386/kernel/smpboot.c @@ -1376,7 +1376,8 @@ int __cpu_disable(void) */ if (cpu == 0) return -EBUSY; - + if (nmi_watchdog == NMI_LOCAL_APIC) + stop_apic_nmi_watchdog(NULL); clear_local_APIC(); /* Allow any queued timer interrupts to get serviced */ local_irq_enable(); diff --git a/arch/x86_64/kernel/nmi.c b/arch/x86_64/kernel/nmi.c index dd57410dad51..5a35975e5763 100644 --- a/arch/x86_64/kernel/nmi.c +++ b/arch/x86_64/kernel/nmi.c @@ -63,7 +63,6 @@ struct nmi_watchdog_ctlblk { static DEFINE_PER_CPU(struct nmi_watchdog_ctlblk, nmi_watchdog_ctlblk); /* local prototypes */ -static void stop_apic_nmi_watchdog(void *unused); static int unknown_nmi_panic_callback(struct pt_regs *regs, int cpu); /* converts an msr to an appropriate reservation bit */ @@ -337,15 +336,20 @@ static int nmi_pm_active; /* nmi_active before suspend */ static int lapic_nmi_suspend(struct sys_device *dev, pm_message_t state) { + /* only CPU0 goes here, other CPUs should be offline */ nmi_pm_active = atomic_read(&nmi_active); - disable_lapic_nmi_watchdog(); + stop_apic_nmi_watchdog(NULL); + BUG_ON(atomic_read(&nmi_active) != 0); return 0; } static int lapic_nmi_resume(struct sys_device *dev) { - if (nmi_pm_active > 0) - enable_lapic_nmi_watchdog(); + /* only CPU0 goes here, other CPUs should be offline */ + if (nmi_pm_active > 0) { + setup_apic_nmi_watchdog(NULL); + touch_nmi_watchdog(); + } return 0; } @@ -561,11 +565,21 @@ static void stop_p4_watchdog(void) void setup_apic_nmi_watchdog(void *unused) { + struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); + /* only support LOCAL and IO APICs for now */ if ((nmi_watchdog != NMI_LOCAL_APIC) && (nmi_watchdog != NMI_IO_APIC)) return; + if (wd->enabled == 1) + return; + + /* cheap hack to support suspend/resume */ + /* if cpu0 is not active neither should the other cpus */ + if ((smp_processor_id() != 0) && (atomic_read(&nmi_active) <= 0)) + return; + if (nmi_watchdog == NMI_LOCAL_APIC) { switch (boot_cpu_data.x86_vendor) { case X86_VENDOR_AMD: @@ -582,17 +596,22 @@ void setup_apic_nmi_watchdog(void *unused) return; } } - __get_cpu_var(nmi_watchdog_ctlblk.enabled) = 1; + wd->enabled = 1; atomic_inc(&nmi_active); } -static void stop_apic_nmi_watchdog(void *unused) +void stop_apic_nmi_watchdog(void *unused) { + struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); + /* only support LOCAL and IO APICs for now */ if ((nmi_watchdog != NMI_LOCAL_APIC) && (nmi_watchdog != NMI_IO_APIC)) return; + if (wd->enabled == 0) + return; + if (nmi_watchdog == NMI_LOCAL_APIC) { switch (boot_cpu_data.x86_vendor) { case X86_VENDOR_AMD: @@ -607,7 +626,7 @@ static void stop_apic_nmi_watchdog(void *unused) return; } } - __get_cpu_var(nmi_watchdog_ctlblk.enabled) = 0; + wd->enabled = 0; atomic_dec(&nmi_active); } diff --git a/arch/x86_64/kernel/smpboot.c b/arch/x86_64/kernel/smpboot.c index 975380207b46..15555879ce95 100644 --- a/arch/x86_64/kernel/smpboot.c +++ b/arch/x86_64/kernel/smpboot.c @@ -1233,6 +1233,8 @@ int __cpu_disable(void) if (cpu == 0) return -EBUSY; + if (nmi_watchdog == NMI_LOCAL_APIC) + stop_apic_nmi_watchdog(NULL); clear_local_APIC(); /* diff --git a/include/asm-i386/nmi.h b/include/asm-i386/nmi.h index 13b5d8311bf7..303bcd4592bb 100644 --- a/include/asm-i386/nmi.h +++ b/include/asm-i386/nmi.h @@ -23,6 +23,7 @@ extern int reserve_evntsel_nmi(unsigned int); extern void release_evntsel_nmi(unsigned int); extern void setup_apic_nmi_watchdog (void *); +extern void stop_apic_nmi_watchdog (void *); extern void disable_timer_nmi_watchdog(void); extern void enable_timer_nmi_watchdog(void); extern int nmi_watchdog_tick (struct pt_regs * regs, unsigned reason); diff --git a/include/asm-x86_64/nmi.h b/include/asm-x86_64/nmi.h index 2c23b0df87d2..578596494275 100644 --- a/include/asm-x86_64/nmi.h +++ b/include/asm-x86_64/nmi.h @@ -54,6 +54,7 @@ extern int reserve_evntsel_nmi(unsigned int); extern void release_evntsel_nmi(unsigned int); extern void setup_apic_nmi_watchdog (void *); +extern void stop_apic_nmi_watchdog (void *); extern void disable_timer_nmi_watchdog(void); extern void enable_timer_nmi_watchdog(void); extern int nmi_watchdog_tick (struct pt_regs * regs, unsigned reason); -- cgit v1.2.3 From fac58550e80c307bf17cfa0dd544fca4eff120a5 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Tue, 26 Sep 2006 10:52:27 +0200 Subject: [PATCH] Fix up panic messages for different NMI panics When a unknown NMI happened the panic would claim a NMI watchdog timeout. Also it would check the variable set by nmi_watchdog=panic and panic then. Fix up the panic message to be generic Unconditionally panic on unknown NMI when panic on unknown nmi is enabled. Noticed by Jan Beulich Cc: jbeulich@novell.com Signed-off-by: Andi Kleen --- arch/x86_64/kernel/nmi.c | 5 +++-- arch/x86_64/kernel/traps.c | 7 +++---- include/asm-x86_64/nmi.h | 2 +- 3 files changed, 7 insertions(+), 7 deletions(-) (limited to 'include') diff --git a/arch/x86_64/kernel/nmi.c b/arch/x86_64/kernel/nmi.c index 5a35975e5763..1b76d1574529 100644 --- a/arch/x86_64/kernel/nmi.c +++ b/arch/x86_64/kernel/nmi.c @@ -695,7 +695,8 @@ int __kprobes nmi_watchdog_tick(struct pt_regs * regs, unsigned reason) */ local_inc(&__get_cpu_var(alert_counter)); if (local_read(&__get_cpu_var(alert_counter)) == 5*nmi_hz) - die_nmi("NMI Watchdog detected LOCKUP on CPU %d\n", regs); + die_nmi("NMI Watchdog detected LOCKUP on CPU %d\n", regs, + panic_on_timeout); } else { __get_cpu_var(last_irq_sum) = sum; local_set(&__get_cpu_var(alert_counter), 0); @@ -765,7 +766,7 @@ static int unknown_nmi_panic_callback(struct pt_regs *regs, int cpu) char buf[64]; sprintf(buf, "NMI received for unknown reason %02x\n", reason); - die_nmi(buf,regs); + die_nmi(buf, regs, 1); /* Always panic here */ return 0; } diff --git a/arch/x86_64/kernel/traps.c b/arch/x86_64/kernel/traps.c index dae10df60926..96f62a033242 100644 --- a/arch/x86_64/kernel/traps.c +++ b/arch/x86_64/kernel/traps.c @@ -570,7 +570,7 @@ void die(const char * str, struct pt_regs * regs, long err) do_exit(SIGSEGV); } -void __kprobes die_nmi(char *str, struct pt_regs *regs) +void __kprobes die_nmi(char *str, struct pt_regs *regs, int do_panic) { unsigned long flags = oops_begin(); @@ -582,9 +582,8 @@ void __kprobes die_nmi(char *str, struct pt_regs *regs) show_registers(regs); if (kexec_should_crash(current)) crash_kexec(regs); - if (panic_on_timeout || panic_on_oops) - panic("nmi watchdog"); - printk("console shuts up ...\n"); + if (do_panic || panic_on_oops) + panic("Non maskable interrupt"); oops_end(flags); nmi_exit(); local_irq_enable(); diff --git a/include/asm-x86_64/nmi.h b/include/asm-x86_64/nmi.h index 578596494275..cbf2669bca71 100644 --- a/include/asm-x86_64/nmi.h +++ b/include/asm-x86_64/nmi.h @@ -37,7 +37,7 @@ static inline void unset_nmi_pm_callback(struct pm_dev * dev) #endif /* CONFIG_PM */ extern void default_do_nmi(struct pt_regs *); -extern void die_nmi(char *str, struct pt_regs *regs); +extern void die_nmi(char *str, struct pt_regs *regs, int do_panic); #define get_nmi_reason() inb(0x61) -- cgit v1.2.3 From 248dcb2ffffe8f3e4a369556a68988788c208111 Mon Sep 17 00:00:00 2001 From: Venkatesh Pallipadi Date: Tue, 26 Sep 2006 10:52:27 +0200 Subject: [PATCH] x86: i386/x86-64 Add nmi watchdog support for new Intel CPUs AK: This redoes the changes I temporarily reverted. Intel now has support for Architectural Performance Monitoring Counters ( Refer to IA-32 Intel Architecture Software Developer's Manual http://www.intel.com/design/pentium4/manuals/253669.htm ). This feature is present starting from Intel Core Duo and Intel Core Solo processors. What this means is, the performance monitoring counters and some performance monitoring events are now defined in an architectural way (using cpuid). And there will be no need to check for family/model etc for these architectural events. Below is the patch to use this performance counters in nmi watchdog driver. Patch handles both i386 and x86-64 kernels. Signed-off-by: Venkatesh Pallipadi Signed-off-by: Andi Kleen --- arch/i386/kernel/nmi.c | 126 +++++++++++++++++++++++++++++-- arch/x86_64/kernel/nmi.c | 130 ++++++++++++++++++++++++++++++-- include/asm-i386/intel_arch_perfmon.h | 31 ++++++++ include/asm-x86_64/intel_arch_perfmon.h | 31 ++++++++ 4 files changed, 308 insertions(+), 10 deletions(-) create mode 100644 include/asm-i386/intel_arch_perfmon.h create mode 100644 include/asm-x86_64/intel_arch_perfmon.h (limited to 'include') diff --git a/arch/i386/kernel/nmi.c b/arch/i386/kernel/nmi.c index 6e5085d5d2f6..7b9a053effa3 100644 --- a/arch/i386/kernel/nmi.c +++ b/arch/i386/kernel/nmi.c @@ -26,6 +26,7 @@ #include #include #include +#include #include "mach_traps.h" @@ -77,6 +78,9 @@ static inline unsigned int nmi_perfctr_msr_to_bit(unsigned int msr) case X86_VENDOR_AMD: return (msr - MSR_K7_PERFCTR0); case X86_VENDOR_INTEL: + if (cpu_has(&boot_cpu_data, X86_FEATURE_ARCH_PERFMON)) + return (msr - MSR_ARCH_PERFMON_PERFCTR0); + switch (boot_cpu_data.x86) { case 6: return (msr - MSR_P6_PERFCTR0); @@ -95,6 +99,9 @@ static inline unsigned int nmi_evntsel_msr_to_bit(unsigned int msr) case X86_VENDOR_AMD: return (msr - MSR_K7_EVNTSEL0); case X86_VENDOR_INTEL: + if (cpu_has(&boot_cpu_data, X86_FEATURE_ARCH_PERFMON)) + return (msr - MSR_ARCH_PERFMON_EVENTSEL0); + switch (boot_cpu_data.x86) { case 6: return (msr - MSR_P6_EVNTSEL0); @@ -174,7 +181,10 @@ static __cpuinit inline int nmi_known_cpu(void) case X86_VENDOR_AMD: return ((boot_cpu_data.x86 == 15) || (boot_cpu_data.x86 == 6)); case X86_VENDOR_INTEL: - return ((boot_cpu_data.x86 == 15) || (boot_cpu_data.x86 == 6)); + if (cpu_has(&boot_cpu_data, X86_FEATURE_ARCH_PERFMON)) + return 1; + else + return ((boot_cpu_data.x86 == 15) || (boot_cpu_data.x86 == 6)); } return 0; } @@ -261,8 +271,24 @@ static int __init check_nmi_watchdog(void) /* now that we know it works we can reduce NMI frequency to something more reasonable; makes a difference in some configs */ - if (nmi_watchdog == NMI_LOCAL_APIC) + if (nmi_watchdog == NMI_LOCAL_APIC) { + struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); + nmi_hz = 1; + /* + * On Intel CPUs with ARCH_PERFMON only 32 bits in the counter + * are writable, with higher bits sign extending from bit 31. + * So, we can only program the counter with 31 bit values and + * 32nd bit should be 1, for 33.. to be 1. + * Find the appropriate nmi_hz + */ + if (wd->perfctr_msr == MSR_ARCH_PERFMON_PERFCTR0 && + ((u64)cpu_khz * 1000) > 0x7fffffffULL) { + u64 count = (u64)cpu_khz * 1000; + do_div(count, 0x7fffffffUL); + nmi_hz = count + 1; + } + } kfree(prev_nmi_count); return 0; @@ -637,6 +663,85 @@ static void stop_p4_watchdog(void) release_perfctr_nmi(wd->perfctr_msr); } +#define ARCH_PERFMON_NMI_EVENT_SEL ARCH_PERFMON_UNHALTED_CORE_CYCLES_SEL +#define ARCH_PERFMON_NMI_EVENT_UMASK ARCH_PERFMON_UNHALTED_CORE_CYCLES_UMASK + +static int setup_intel_arch_watchdog(void) +{ + unsigned int ebx; + union cpuid10_eax eax; + unsigned int unused; + unsigned int perfctr_msr, evntsel_msr; + unsigned int evntsel; + struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); + + /* + * Check whether the Architectural PerfMon supports + * Unhalted Core Cycles Event or not. + * NOTE: Corresponding bit = 0 in ebx indicates event present. + */ + cpuid(10, &(eax.full), &ebx, &unused, &unused); + if ((eax.split.mask_length < (ARCH_PERFMON_UNHALTED_CORE_CYCLES_INDEX+1)) || + (ebx & ARCH_PERFMON_UNHALTED_CORE_CYCLES_PRESENT)) + goto fail; + + perfctr_msr = MSR_ARCH_PERFMON_PERFCTR0; + evntsel_msr = MSR_ARCH_PERFMON_EVENTSEL0; + + if (!reserve_perfctr_nmi(perfctr_msr)) + goto fail; + + if (!reserve_evntsel_nmi(evntsel_msr)) + goto fail1; + + wrmsrl(perfctr_msr, 0UL); + + evntsel = ARCH_PERFMON_EVENTSEL_INT + | ARCH_PERFMON_EVENTSEL_OS + | ARCH_PERFMON_EVENTSEL_USR + | ARCH_PERFMON_NMI_EVENT_SEL + | ARCH_PERFMON_NMI_EVENT_UMASK; + + /* setup the timer */ + wrmsr(evntsel_msr, evntsel, 0); + write_watchdog_counter(perfctr_msr, "INTEL_ARCH_PERFCTR0"); + apic_write(APIC_LVTPC, APIC_DM_NMI); + evntsel |= ARCH_PERFMON_EVENTSEL0_ENABLE; + wrmsr(evntsel_msr, evntsel, 0); + + wd->perfctr_msr = perfctr_msr; + wd->evntsel_msr = evntsel_msr; + wd->cccr_msr = 0; //unused + wd->check_bit = 1ULL << (eax.split.bit_width - 1); + return 1; +fail1: + release_perfctr_nmi(perfctr_msr); +fail: + return 0; +} + +static void stop_intel_arch_watchdog(void) +{ + unsigned int ebx; + union cpuid10_eax eax; + unsigned int unused; + struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); + + /* + * Check whether the Architectural PerfMon supports + * Unhalted Core Cycles Event or not. + * NOTE: Corresponding bit = 0 in ebx indicates event present. + */ + cpuid(10, &(eax.full), &ebx, &unused, &unused); + if ((eax.split.mask_length < (ARCH_PERFMON_UNHALTED_CORE_CYCLES_INDEX+1)) || + (ebx & ARCH_PERFMON_UNHALTED_CORE_CYCLES_PRESENT)) + return; + + wrmsr(wd->evntsel_msr, 0, 0); + release_evntsel_nmi(wd->evntsel_msr); + release_perfctr_nmi(wd->perfctr_msr); +} + void setup_apic_nmi_watchdog (void *unused) { struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); @@ -663,6 +768,11 @@ void setup_apic_nmi_watchdog (void *unused) return; break; case X86_VENDOR_INTEL: + if (cpu_has(&boot_cpu_data, X86_FEATURE_ARCH_PERFMON)) { + if (!setup_intel_arch_watchdog()) + return; + break; + } switch (boot_cpu_data.x86) { case 6: if (boot_cpu_data.x86_model > 0xd) @@ -708,6 +818,10 @@ void stop_apic_nmi_watchdog(void *unused) stop_k7_watchdog(); break; case X86_VENDOR_INTEL: + if (cpu_has(&boot_cpu_data, X86_FEATURE_ARCH_PERFMON)) { + stop_intel_arch_watchdog(); + break; + } switch (boot_cpu_data.x86) { case 6: if (boot_cpu_data.x86_model > 0xd) @@ -831,10 +945,12 @@ int nmi_watchdog_tick (struct pt_regs * regs, unsigned reason) wrmsrl(wd->cccr_msr, dummy); apic_write(APIC_LVTPC, APIC_DM_NMI); } - else if (wd->perfctr_msr == MSR_P6_PERFCTR0) { - /* Only P6 based Pentium M need to re-unmask + else if (wd->perfctr_msr == MSR_P6_PERFCTR0 || + wd->perfctr_msr == MSR_ARCH_PERFMON_PERFCTR0) { + /* P6 based Pentium M need to re-unmask * the apic vector but it doesn't hurt - * other P6 variant */ + * other P6 variant. + * ArchPerfom/Core Duo also needs this */ apic_write(APIC_LVTPC, APIC_DM_NMI); } /* start the cycle over again */ diff --git a/arch/x86_64/kernel/nmi.c b/arch/x86_64/kernel/nmi.c index 1b76d1574529..4d6fb047952e 100644 --- a/arch/x86_64/kernel/nmi.c +++ b/arch/x86_64/kernel/nmi.c @@ -26,6 +26,7 @@ #include #include #include +#include /* perfctr_nmi_owner tracks the ownership of the perfctr registers: * evtsel_nmi_owner tracks the ownership of the event selection @@ -73,7 +74,10 @@ static inline unsigned int nmi_perfctr_msr_to_bit(unsigned int msr) case X86_VENDOR_AMD: return (msr - MSR_K7_PERFCTR0); case X86_VENDOR_INTEL: - return (msr - MSR_P4_BPU_PERFCTR0); + if (cpu_has(&boot_cpu_data, X86_FEATURE_ARCH_PERFMON)) + return (msr - MSR_ARCH_PERFMON_PERFCTR0); + else + return (msr - MSR_P4_BPU_PERFCTR0); } return 0; } @@ -86,7 +90,10 @@ static inline unsigned int nmi_evntsel_msr_to_bit(unsigned int msr) case X86_VENDOR_AMD: return (msr - MSR_K7_EVNTSEL0); case X86_VENDOR_INTEL: - return (msr - MSR_P4_BSU_ESCR0); + if (cpu_has(&boot_cpu_data, X86_FEATURE_ARCH_PERFMON)) + return (msr - MSR_ARCH_PERFMON_EVENTSEL0); + else + return (msr - MSR_P4_BSU_ESCR0); } return 0; } @@ -160,7 +167,10 @@ static __cpuinit inline int nmi_known_cpu(void) case X86_VENDOR_AMD: return boot_cpu_data.x86 == 15; case X86_VENDOR_INTEL: - return boot_cpu_data.x86 == 15; + if (cpu_has(&boot_cpu_data, X86_FEATURE_ARCH_PERFMON)) + return 1; + else + return (boot_cpu_data.x86 == 15); } return 0; } @@ -246,8 +256,22 @@ int __init check_nmi_watchdog (void) /* now that we know it works we can reduce NMI frequency to something more reasonable; makes a difference in some configs */ - if (nmi_watchdog == NMI_LOCAL_APIC) + if (nmi_watchdog == NMI_LOCAL_APIC) { + struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); + nmi_hz = 1; + /* + * On Intel CPUs with ARCH_PERFMON only 32 bits in the counter + * are writable, with higher bits sign extending from bit 31. + * So, we can only program the counter with 31 bit values and + * 32nd bit should be 1, for 33.. to be 1. + * Find the appropriate nmi_hz + */ + if (wd->perfctr_msr == MSR_ARCH_PERFMON_PERFCTR0 && + ((u64)cpu_khz * 1000) > 0x7fffffffULL) { + nmi_hz = ((u64)cpu_khz * 1000) / 0x7fffffffUL + 1; + } + } kfree(counts); return 0; @@ -563,6 +587,87 @@ static void stop_p4_watchdog(void) release_perfctr_nmi(wd->perfctr_msr); } +#define ARCH_PERFMON_NMI_EVENT_SEL ARCH_PERFMON_UNHALTED_CORE_CYCLES_SEL +#define ARCH_PERFMON_NMI_EVENT_UMASK ARCH_PERFMON_UNHALTED_CORE_CYCLES_UMASK + +static int setup_intel_arch_watchdog(void) +{ + unsigned int ebx; + union cpuid10_eax eax; + unsigned int unused; + unsigned int perfctr_msr, evntsel_msr; + unsigned int evntsel; + struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); + + /* + * Check whether the Architectural PerfMon supports + * Unhalted Core Cycles Event or not. + * NOTE: Corresponding bit = 0 in ebx indicates event present. + */ + cpuid(10, &(eax.full), &ebx, &unused, &unused); + if ((eax.split.mask_length < (ARCH_PERFMON_UNHALTED_CORE_CYCLES_INDEX+1)) || + (ebx & ARCH_PERFMON_UNHALTED_CORE_CYCLES_PRESENT)) + goto fail; + + perfctr_msr = MSR_ARCH_PERFMON_PERFCTR0; + evntsel_msr = MSR_ARCH_PERFMON_EVENTSEL0; + + if (!reserve_perfctr_nmi(perfctr_msr)) + goto fail; + + if (!reserve_evntsel_nmi(evntsel_msr)) + goto fail1; + + wrmsrl(perfctr_msr, 0UL); + + evntsel = ARCH_PERFMON_EVENTSEL_INT + | ARCH_PERFMON_EVENTSEL_OS + | ARCH_PERFMON_EVENTSEL_USR + | ARCH_PERFMON_NMI_EVENT_SEL + | ARCH_PERFMON_NMI_EVENT_UMASK; + + /* setup the timer */ + wrmsr(evntsel_msr, evntsel, 0); + wrmsrl(perfctr_msr, -((u64)cpu_khz * 1000 / nmi_hz)); + + apic_write(APIC_LVTPC, APIC_DM_NMI); + evntsel |= ARCH_PERFMON_EVENTSEL0_ENABLE; + wrmsr(evntsel_msr, evntsel, 0); + + wd->perfctr_msr = perfctr_msr; + wd->evntsel_msr = evntsel_msr; + wd->cccr_msr = 0; //unused + wd->check_bit = 1ULL << (eax.split.bit_width - 1); + return 1; +fail1: + release_perfctr_nmi(perfctr_msr); +fail: + return 0; +} + +static void stop_intel_arch_watchdog(void) +{ + unsigned int ebx; + union cpuid10_eax eax; + unsigned int unused; + struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); + + /* + * Check whether the Architectural PerfMon supports + * Unhalted Core Cycles Event or not. + * NOTE: Corresponding bit = 0 in ebx indicates event present. + */ + cpuid(10, &(eax.full), &ebx, &unused, &unused); + if ((eax.split.mask_length < (ARCH_PERFMON_UNHALTED_CORE_CYCLES_INDEX+1)) || + (ebx & ARCH_PERFMON_UNHALTED_CORE_CYCLES_PRESENT)) + return; + + wrmsr(wd->evntsel_msr, 0, 0); + + release_evntsel_nmi(wd->evntsel_msr); + release_perfctr_nmi(wd->perfctr_msr); +} + void setup_apic_nmi_watchdog(void *unused) { struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); @@ -589,6 +694,11 @@ void setup_apic_nmi_watchdog(void *unused) return; break; case X86_VENDOR_INTEL: + if (cpu_has(&boot_cpu_data, X86_FEATURE_ARCH_PERFMON)) { + if (!setup_intel_arch_watchdog()) + return; + break; + } if (!setup_p4_watchdog()) return; break; @@ -620,6 +730,10 @@ void stop_apic_nmi_watchdog(void *unused) stop_k7_watchdog(); break; case X86_VENDOR_INTEL: + if (cpu_has(&boot_cpu_data, X86_FEATURE_ARCH_PERFMON)) { + stop_intel_arch_watchdog(); + break; + } stop_p4_watchdog(); break; default: @@ -724,7 +838,13 @@ int __kprobes nmi_watchdog_tick(struct pt_regs * regs, unsigned reason) dummy &= ~P4_CCCR_OVF; wrmsrl(wd->cccr_msr, dummy); apic_write(APIC_LVTPC, APIC_DM_NMI); - } + } else if (wd->perfctr_msr == MSR_ARCH_PERFMON_PERFCTR0) { + /* + * ArchPerfom/Core Duo needs to re-unmask + * the apic vector + */ + apic_write(APIC_LVTPC, APIC_DM_NMI); + } /* start the cycle over again */ wrmsrl(wd->perfctr_msr, -((u64)cpu_khz * 1000 / nmi_hz)); rc = 1; diff --git a/include/asm-i386/intel_arch_perfmon.h b/include/asm-i386/intel_arch_perfmon.h new file mode 100644 index 000000000000..b52cd60a075b --- /dev/null +++ b/include/asm-i386/intel_arch_perfmon.h @@ -0,0 +1,31 @@ +#ifndef X86_INTEL_ARCH_PERFMON_H +#define X86_INTEL_ARCH_PERFMON_H 1 + +#define MSR_ARCH_PERFMON_PERFCTR0 0xc1 +#define MSR_ARCH_PERFMON_PERFCTR1 0xc2 + +#define MSR_ARCH_PERFMON_EVENTSEL0 0x186 +#define MSR_ARCH_PERFMON_EVENTSEL1 0x187 + +#define ARCH_PERFMON_EVENTSEL0_ENABLE (1 << 22) +#define ARCH_PERFMON_EVENTSEL_INT (1 << 20) +#define ARCH_PERFMON_EVENTSEL_OS (1 << 17) +#define ARCH_PERFMON_EVENTSEL_USR (1 << 16) + +#define ARCH_PERFMON_UNHALTED_CORE_CYCLES_SEL (0x3c) +#define ARCH_PERFMON_UNHALTED_CORE_CYCLES_UMASK (0x00 << 8) +#define ARCH_PERFMON_UNHALTED_CORE_CYCLES_INDEX (0) +#define ARCH_PERFMON_UNHALTED_CORE_CYCLES_PRESENT \ + (1 << (ARCH_PERFMON_UNHALTED_CORE_CYCLES_INDEX)) + +union cpuid10_eax { + struct { + unsigned int version_id:8; + unsigned int num_counters:8; + unsigned int bit_width:8; + unsigned int mask_length:8; + } split; + unsigned int full; +}; + +#endif /* X86_INTEL_ARCH_PERFMON_H */ diff --git a/include/asm-x86_64/intel_arch_perfmon.h b/include/asm-x86_64/intel_arch_perfmon.h new file mode 100644 index 000000000000..8633331420ec --- /dev/null +++ b/include/asm-x86_64/intel_arch_perfmon.h @@ -0,0 +1,31 @@ +#ifndef X86_64_INTEL_ARCH_PERFMON_H +#define X86_64_INTEL_ARCH_PERFMON_H 1 + +#define MSR_ARCH_PERFMON_PERFCTR0 0xc1 +#define MSR_ARCH_PERFMON_PERFCTR1 0xc2 + +#define MSR_ARCH_PERFMON_EVENTSEL0 0x186 +#define MSR_ARCH_PERFMON_EVENTSEL1 0x187 + +#define ARCH_PERFMON_EVENTSEL0_ENABLE (1 << 22) +#define ARCH_PERFMON_EVENTSEL_INT (1 << 20) +#define ARCH_PERFMON_EVENTSEL_OS (1 << 17) +#define ARCH_PERFMON_EVENTSEL_USR (1 << 16) + +#define ARCH_PERFMON_UNHALTED_CORE_CYCLES_SEL (0x3c) +#define ARCH_PERFMON_UNHALTED_CORE_CYCLES_UMASK (0x00 << 8) +#define ARCH_PERFMON_UNHALTED_CORE_CYCLES_INDEX (0) +#define ARCH_PERFMON_UNHALTED_CORE_CYCLES_PRESENT \ + (1 << (ARCH_PERFMON_UNHALTED_CORE_CYCLES_INDEX)) + +union cpuid10_eax { + struct { + unsigned int version_id:8; + unsigned int num_counters:8; + unsigned int bit_width:8; + unsigned int mask_length:8; + } split; + unsigned int full; +}; + +#endif /* X86_64_INTEL_ARCH_PERFMON_H */ -- cgit v1.2.3 From 81af4449af9c9b686a4eeeb00112614621655704 Mon Sep 17 00:00:00 2001 From: Vojtech Pavlik Date: Tue, 26 Sep 2006 10:52:28 +0200 Subject: [PATCH] Add macros for rdtscp This patch adds macros for reading tsc via the RDTSCP instruction, as well as writing the auxilliary MSR read by RDTSCP to msr.h [AK: changed rdtscp definition for old binutils] Signed-off-by: Vojtech Pavlik Signed-off-by: Andi Kleen --- include/asm-x86_64/msr.h | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'include') diff --git a/include/asm-x86_64/msr.h b/include/asm-x86_64/msr.h index 10f8b51cec8b..37e194169fac 100644 --- a/include/asm-x86_64/msr.h +++ b/include/asm-x86_64/msr.h @@ -66,14 +66,25 @@ #define rdtscl(low) \ __asm__ __volatile__ ("rdtsc" : "=a" (low) : : "edx") +#define rdtscp(low,high,aux) \ + asm volatile (".byte 0x0f,0x01,0xf9" : "=a" (low), "=d" (high), "=c" (aux)) + #define rdtscll(val) do { \ unsigned int __a,__d; \ asm volatile("rdtsc" : "=a" (__a), "=d" (__d)); \ (val) = ((unsigned long)__a) | (((unsigned long)__d)<<32); \ } while(0) +#define rdtscpll(val, aux) do { \ + unsigned long __a, __d; \ + asm volatile (".byte 0x0f,0x01,0xf9" : "=a" (__a), "=d" (__d), "=c" (aux)); \ + (val) = (__d << 32) | __a; \ +} while (0) + #define write_tsc(val1,val2) wrmsr(0x10, val1, val2) +#define write_rdtscp_aux(val) wrmsr(0xc0000103, val, 0) + #define rdpmc(counter,low,high) \ __asm__ __volatile__("rdpmc" \ : "=a" (low), "=d" (high) \ -- cgit v1.2.3 From a670fad0adb1cc6202a607d250f10bd380593905 Mon Sep 17 00:00:00 2001 From: Vojtech Pavlik Date: Tue, 26 Sep 2006 10:52:28 +0200 Subject: [PATCH] Add initalization of the RDTSCP auxilliary values This patch adds initalization of the RDTSCP auxilliary values to CPU numbers to time.c. If RDTSCP is available, the MSRs are written with the respective values. It can be later used to initalize per-cpu timekeeping variables. AK: Some cleanups. Move externs into headers and fix CPU hotplug. Signed-off-by: Vojtech Pavlik Signed-off-by: Andi Kleen --- arch/x86_64/kernel/smpboot.c | 2 ++ arch/x86_64/kernel/time.c | 47 +++++++++++++++++++++++++++++++++----------- include/asm-x86_64/proto.h | 1 + 3 files changed, 38 insertions(+), 12 deletions(-) (limited to 'include') diff --git a/arch/x86_64/kernel/smpboot.c b/arch/x86_64/kernel/smpboot.c index 15555879ce95..582896f7d420 100644 --- a/arch/x86_64/kernel/smpboot.c +++ b/arch/x86_64/kernel/smpboot.c @@ -1181,6 +1181,8 @@ void __init smp_cpus_done(unsigned int max_cpus) #endif check_nmi_watchdog(); + + time_init_gtod(); } #ifdef CONFIG_HOTPLUG_CPU diff --git a/arch/x86_64/kernel/time.c b/arch/x86_64/kernel/time.c index 7a9b18224182..97b9e46d1992 100644 --- a/arch/x86_64/kernel/time.c +++ b/arch/x86_64/kernel/time.c @@ -24,6 +24,8 @@ #include #include #include +#include +#include #include #include #ifdef CONFIG_ACPI @@ -49,7 +51,7 @@ static void cpufreq_delayed_get(void); extern void i8254_timer_resume(void); extern int using_apic_timer; -static char *time_init_gtod(void); +static char *timename = NULL; DEFINE_SPINLOCK(rtc_lock); EXPORT_SYMBOL(rtc_lock); @@ -893,11 +895,21 @@ static struct irqaction irq0 = { timer_interrupt, IRQF_DISABLED, CPU_MASK_NONE, "timer", NULL, NULL }; -void __init time_init(void) +static int __cpuinit +time_cpu_notifier(struct notifier_block *nb, unsigned long action, void *hcpu) { - char *timename; - char *gtod; + unsigned cpu = (unsigned long) hcpu; + if (action == CPU_ONLINE && + cpu_has(&cpu_data[cpu], X86_FEATURE_RDTSCP)) { + unsigned p; + p = smp_processor_id() | (cpu_to_node(smp_processor_id())<<12); + write_rdtscp_aux(p); + } + return NOTIFY_DONE; +} +void __init time_init(void) +{ if (nohpet) vxtime.hpet_address = 0; @@ -931,18 +943,19 @@ void __init time_init(void) } vxtime.mode = VXTIME_TSC; - gtod = time_init_gtod(); - - printk(KERN_INFO "time.c: Using %ld.%06ld MHz WALL %s GTOD %s timer.\n", - vxtime_hz / 1000000, vxtime_hz % 1000000, timename, gtod); - printk(KERN_INFO "time.c: Detected %d.%03d MHz processor.\n", - cpu_khz / 1000, cpu_khz % 1000); vxtime.quot = (USEC_PER_SEC << US_SCALE) / vxtime_hz; vxtime.tsc_quot = (USEC_PER_MSEC << US_SCALE) / cpu_khz; vxtime.last_tsc = get_cycles_sync(); setup_irq(0, &irq0); set_cyc2ns_scale(cpu_khz); + + hotcpu_notifier(time_cpu_notifier, 0); + time_cpu_notifier(NULL, CPU_ONLINE, (void *)(long)smp_processor_id()); + +#ifndef CONFIG_SMP + time_init_gtod(); +#endif } /* @@ -973,12 +986,13 @@ __cpuinit int unsynchronized_tsc(void) /* * Decide what mode gettimeofday should use. */ -__init static char *time_init_gtod(void) +void time_init_gtod(void) { char *timetype; if (unsynchronized_tsc()) notsc = 1; + if (vxtime.hpet_address && notsc) { timetype = hpet_use_timer ? "HPET" : "PIT/HPET"; if (hpet_use_timer) @@ -1001,7 +1015,16 @@ __init static char *time_init_gtod(void) timetype = hpet_use_timer ? "HPET/TSC" : "PIT/TSC"; vxtime.mode = VXTIME_TSC; } - return timetype; + + printk(KERN_INFO "time.c: Using %ld.%06ld MHz WALL %s GTOD %s timer.\n", + vxtime_hz / 1000000, vxtime_hz % 1000000, timename, timetype); + printk(KERN_INFO "time.c: Detected %d.%03d MHz processor.\n", + cpu_khz / 1000, cpu_khz % 1000); + vxtime.quot = (USEC_PER_SEC << US_SCALE) / vxtime_hz; + vxtime.tsc_quot = (USEC_PER_MSEC << US_SCALE) / cpu_khz; + vxtime.last_tsc = get_cycles_sync(); + + set_cyc2ns_scale(cpu_khz); } __setup("report_lost_ticks", time_setup); diff --git a/include/asm-x86_64/proto.h b/include/asm-x86_64/proto.h index 038fe1f47e6f..3b1c60247902 100644 --- a/include/asm-x86_64/proto.h +++ b/include/asm-x86_64/proto.h @@ -51,6 +51,7 @@ extern unsigned long long monotonic_base; extern int sysctl_vsyscall; extern int nohpet; extern unsigned long vxtime_hz; +extern void time_init_gtod(void); extern int numa_setup(char *opt); -- cgit v1.2.3 From c08c820508233b424deab3302bc404bbecc6493a Mon Sep 17 00:00:00 2001 From: Vojtech Pavlik Date: Tue, 26 Sep 2006 10:52:28 +0200 Subject: [PATCH] Add the vgetcpu vsyscall This patch adds a vgetcpu vsyscall, which depending on the CPU RDTSCP capability uses either the RDTSCP or CPUID to obtain a CPU and node numbers and pass them to the program. AK: Lots of changes over Vojtech's original code: Better prototype for vgetcpu() It's better to pass the cpu / node numbers as separate arguments to avoid mistakes when going from SMP to NUMA. Also add a fast time stamp based cache using a user supplied argument to speed things more up. Use fast method from Chuck Ebbert to retrieve node/cpu from GDT limit instead of CPUID Made sure RDTSCP init is always executed after node is known. Drop printk Signed-off-by: Vojtech Pavlik Signed-off-by: Andi Kleen --- arch/x86_64/kernel/head.S | 2 +- arch/x86_64/kernel/time.c | 13 ++++--- arch/x86_64/kernel/vmlinux.lds.S | 3 ++ arch/x86_64/kernel/vsyscall.c | 84 +++++++++++++++++++++++++++++++++++++++- include/asm-x86_64/segment.h | 5 ++- include/asm-x86_64/smp.h | 12 ++++-- include/asm-x86_64/vsyscall.h | 9 +++++ include/linux/getcpu.h | 16 ++++++++ 8 files changed, 130 insertions(+), 14 deletions(-) create mode 100644 include/linux/getcpu.h (limited to 'include') diff --git a/arch/x86_64/kernel/head.S b/arch/x86_64/kernel/head.S index c9739ca81d06..505ec4a57506 100644 --- a/arch/x86_64/kernel/head.S +++ b/arch/x86_64/kernel/head.S @@ -371,7 +371,7 @@ ENTRY(cpu_gdt_table) .quad 0,0 /* TSS */ .quad 0,0 /* LDT */ .quad 0,0,0 /* three TLS descriptors */ - .quad 0 /* unused */ + .quad 0x0000f40000000000 /* node/CPU stored in limit */ gdt_end: /* asm/segment.h:GDT_ENTRIES must match this */ /* This should be a multiple of the cache line size */ diff --git a/arch/x86_64/kernel/time.c b/arch/x86_64/kernel/time.c index 97b9e46d1992..560ed944dc0e 100644 --- a/arch/x86_64/kernel/time.c +++ b/arch/x86_64/kernel/time.c @@ -899,12 +899,8 @@ static int __cpuinit time_cpu_notifier(struct notifier_block *nb, unsigned long action, void *hcpu) { unsigned cpu = (unsigned long) hcpu; - if (action == CPU_ONLINE && - cpu_has(&cpu_data[cpu], X86_FEATURE_RDTSCP)) { - unsigned p; - p = smp_processor_id() | (cpu_to_node(smp_processor_id())<<12); - write_rdtscp_aux(p); - } + if (action == CPU_ONLINE) + vsyscall_set_cpu(cpu); return NOTIFY_DONE; } @@ -993,6 +989,11 @@ void time_init_gtod(void) if (unsynchronized_tsc()) notsc = 1; + if (cpu_has(&boot_cpu_data, X86_FEATURE_RDTSCP)) + vgetcpu_mode = VGETCPU_RDTSCP; + else + vgetcpu_mode = VGETCPU_LSL; + if (vxtime.hpet_address && notsc) { timetype = hpet_use_timer ? "HPET" : "PIT/HPET"; if (hpet_use_timer) diff --git a/arch/x86_64/kernel/vmlinux.lds.S b/arch/x86_64/kernel/vmlinux.lds.S index 7c4de31471d4..8d5a5149bb3a 100644 --- a/arch/x86_64/kernel/vmlinux.lds.S +++ b/arch/x86_64/kernel/vmlinux.lds.S @@ -99,6 +99,9 @@ SECTIONS .vxtime : AT(VLOAD(.vxtime)) { *(.vxtime) } vxtime = VVIRT(.vxtime); + .vgetcpu_mode : AT(VLOAD(.vgetcpu_mode)) { *(.vgetcpu_mode) } + vgetcpu_mode = VVIRT(.vgetcpu_mode); + .wall_jiffies : AT(VLOAD(.wall_jiffies)) { *(.wall_jiffies) } wall_jiffies = VVIRT(.wall_jiffies); diff --git a/arch/x86_64/kernel/vsyscall.c b/arch/x86_64/kernel/vsyscall.c index f603037df162..902783bc4d53 100644 --- a/arch/x86_64/kernel/vsyscall.c +++ b/arch/x86_64/kernel/vsyscall.c @@ -26,6 +26,7 @@ #include #include #include +#include #include #include @@ -33,11 +34,15 @@ #include #include #include +#include +#include +#include #define __vsyscall(nr) __attribute__ ((unused,__section__(".vsyscall_" #nr))) int __sysctl_vsyscall __section_sysctl_vsyscall = 1; seqlock_t __xtime_lock __section_xtime_lock = SEQLOCK_UNLOCKED; +int __vgetcpu_mode __section_vgetcpu_mode; #include @@ -127,9 +132,46 @@ time_t __vsyscall(1) vtime(time_t *t) return __xtime.tv_sec; } -long __vsyscall(2) venosys_0(void) +/* Fast way to get current CPU and node. + This helps to do per node and per CPU caches in user space. + The result is not guaranteed without CPU affinity, but usually + works out because the scheduler tries to keep a thread on the same + CPU. + + tcache must point to a two element sized long array. + All arguments can be NULL. */ +long __vsyscall(2) +vgetcpu(unsigned *cpu, unsigned *node, struct getcpu_cache *tcache) { - return -ENOSYS; + unsigned int dummy, p; + unsigned long j = 0; + + /* Fast cache - only recompute value once per jiffies and avoid + relatively costly rdtscp/cpuid otherwise. + This works because the scheduler usually keeps the process + on the same CPU and this syscall doesn't guarantee its + results anyways. + We do this here because otherwise user space would do it on + its own in a likely inferior way (no access to jiffies). + If you don't like it pass NULL. */ + if (tcache && tcache->t0 == (j = __jiffies)) { + p = tcache->t1; + } else if (__vgetcpu_mode == VGETCPU_RDTSCP) { + /* Load per CPU data from RDTSCP */ + rdtscp(dummy, dummy, p); + } else { + /* Load per CPU data from GDT */ + asm("lsl %1,%0" : "=r" (p) : "r" (__PER_CPU_SEG)); + } + if (tcache) { + tcache->t0 = j; + tcache->t1 = p; + } + if (cpu) + *cpu = p & 0xfff; + if (node) + *node = p >> 12; + return 0; } long __vsyscall(3) venosys_1(void) @@ -200,6 +242,43 @@ static ctl_table kernel_root_table2[] = { #endif +static void __cpuinit write_rdtscp_cb(void *info) +{ + write_rdtscp_aux((unsigned long)info); +} + +void __cpuinit vsyscall_set_cpu(int cpu) +{ + unsigned long *d; + unsigned long node = 0; +#ifdef CONFIG_NUMA + node = cpu_to_node[cpu]; +#endif + if (cpu_has(&cpu_data[cpu], X86_FEATURE_RDTSCP)) { + void *info = (void *)((node << 12) | cpu); + /* Can happen on preemptive kernel */ + if (get_cpu() == cpu) + write_rdtscp_cb(info); +#ifdef CONFIG_SMP + else { + /* the notifier is unfortunately not executed on the + target CPU */ + smp_call_function_single(cpu,write_rdtscp_cb,info,0,1); + } +#endif + put_cpu(); + } + + /* Store cpu number in limit so that it can be loaded quickly + in user space in vgetcpu. + 12 bits for the CPU and 8 bits for the node. */ + d = (unsigned long *)(cpu_gdt(cpu) + GDT_ENTRY_PER_CPU); + *d = 0x0f40000000000ULL; + *d |= cpu; + *d |= (node & 0xf) << 12; + *d |= (node >> 4) << 48; +} + static void __init map_vsyscall(void) { extern char __vsyscall_0; @@ -214,6 +293,7 @@ static int __init vsyscall_init(void) VSYSCALL_ADDR(__NR_vgettimeofday))); BUG_ON((unsigned long) &vtime != VSYSCALL_ADDR(__NR_vtime)); BUG_ON((VSYSCALL_ADDR(0) != __fix_to_virt(VSYSCALL_FIRST_PAGE))); + BUG_ON((unsigned long) &vgetcpu != VSYSCALL_ADDR(__NR_vgetcpu)); map_vsyscall(); #ifdef CONFIG_SYSCTL register_sysctl_table(kernel_root_table2, 0); diff --git a/include/asm-x86_64/segment.h b/include/asm-x86_64/segment.h index d4bed33fb32c..334ddcdd8f92 100644 --- a/include/asm-x86_64/segment.h +++ b/include/asm-x86_64/segment.h @@ -20,15 +20,16 @@ #define __USER_CS 0x33 /* 6*8+3 */ #define __USER32_DS __USER_DS -#define GDT_ENTRY_TLS 1 #define GDT_ENTRY_TSS 8 /* needs two entries */ #define GDT_ENTRY_LDT 10 /* needs two entries */ #define GDT_ENTRY_TLS_MIN 12 #define GDT_ENTRY_TLS_MAX 14 -/* 15 free */ #define GDT_ENTRY_TLS_ENTRIES 3 +#define GDT_ENTRY_PER_CPU 15 /* Abused to load per CPU data from limit */ +#define __PER_CPU_SEG (GDT_ENTRY_PER_CPU * 8 + 3) + /* TLS indexes for 64bit - hardcoded in arch_prctl */ #define FS_TLS 0 #define GS_TLS 1 diff --git a/include/asm-x86_64/smp.h b/include/asm-x86_64/smp.h index 6805e1feb300..d61547fd833b 100644 --- a/include/asm-x86_64/smp.h +++ b/include/asm-x86_64/smp.h @@ -133,13 +133,19 @@ static __inline int logical_smp_processor_id(void) /* we don't want to mark this access volatile - bad code generation */ return GET_APIC_LOGICAL_ID(*(unsigned long *)(APIC_BASE+APIC_LDR)); } -#endif #ifdef CONFIG_SMP #define cpu_physical_id(cpu) x86_cpu_to_apicid[cpu] #else #define cpu_physical_id(cpu) boot_cpu_id -#endif - +static inline int smp_call_function_single(int cpuid, void (*func) (void *info), + void *info, int retry, int wait) +{ + /* Disable interrupts here? */ + func(info); + return 0; +} +#endif /* !CONFIG_SMP */ +#endif /* !__ASSEMBLY */ #endif diff --git a/include/asm-x86_64/vsyscall.h b/include/asm-x86_64/vsyscall.h index 146b24402a5f..2281e9399b96 100644 --- a/include/asm-x86_64/vsyscall.h +++ b/include/asm-x86_64/vsyscall.h @@ -4,6 +4,7 @@ enum vsyscall_num { __NR_vgettimeofday, __NR_vtime, + __NR_vgetcpu, }; #define VSYSCALL_START (-10UL << 20) @@ -15,6 +16,7 @@ enum vsyscall_num { #include #define __section_vxtime __attribute__ ((unused, __section__ (".vxtime"), aligned(16))) +#define __section_vgetcpu_mode __attribute__ ((unused, __section__ (".vgetcpu_mode"), aligned(16))) #define __section_wall_jiffies __attribute__ ((unused, __section__ (".wall_jiffies"), aligned(16))) #define __section_jiffies __attribute__ ((unused, __section__ (".jiffies"), aligned(16))) #define __section_sys_tz __attribute__ ((unused, __section__ (".sys_tz"), aligned(16))) @@ -26,6 +28,9 @@ enum vsyscall_num { #define VXTIME_HPET 2 #define VXTIME_PMTMR 3 +#define VGETCPU_RDTSCP 1 +#define VGETCPU_LSL 2 + struct vxtime_data { long hpet_address; /* HPET base address */ int last; @@ -40,6 +45,7 @@ struct vxtime_data { /* vsyscall space (readonly) */ extern struct vxtime_data __vxtime; +extern int __vgetcpu_mode; extern struct timespec __xtime; extern volatile unsigned long __jiffies; extern unsigned long __wall_jiffies; @@ -48,6 +54,7 @@ extern seqlock_t __xtime_lock; /* kernel space (writeable) */ extern struct vxtime_data vxtime; +extern int vgetcpu_mode; extern unsigned long wall_jiffies; extern struct timezone sys_tz; extern int sysctl_vsyscall; @@ -55,6 +62,8 @@ extern seqlock_t xtime_lock; extern int sysctl_vsyscall; +extern void vsyscall_set_cpu(int cpu); + #define ARCH_HAVE_XTIME_LOCK 1 #endif /* __KERNEL__ */ diff --git a/include/linux/getcpu.h b/include/linux/getcpu.h new file mode 100644 index 000000000000..031ed3780e45 --- /dev/null +++ b/include/linux/getcpu.h @@ -0,0 +1,16 @@ +#ifndef _LINUX_GETCPU_H +#define _LINUX_GETCPU_H 1 + +/* Cache for getcpu() to speed it up. Results might be upto a jiffie + out of date, but will be faster. + User programs should not refer to the contents of this structure. + It is only a cache for vgetcpu(). It might change in future kernels. + The user program must store this information per thread (__thread) + If you want 100% accurate information pass NULL instead. */ +struct getcpu_cache { + unsigned long t0; + unsigned long t1; + unsigned long res[4]; +}; + +#endif -- cgit v1.2.3 From 3cfc348bf90ffaa777c188652aa297f04eb94de8 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Tue, 26 Sep 2006 10:52:28 +0200 Subject: [PATCH] x86: Add portable getcpu call For NUMA optimization and some other algorithms it is useful to have a fast to get the current CPU and node numbers in user space. x86-64 added a fast way to do this in a vsyscall. This adds a generic syscall for other architectures to make it a generic portable facility. I expect some of them will also implement it as a faster vsyscall. The cache is an optimization for the x86-64 vsyscall optimization. Since what the syscall returns is an approximation anyways and user space often wants very fast results it can be cached for some time. The norma methods to get this information in user space are relatively slow The vsyscall is in a better position to manage the cache because it has direct access to a fast time stamp (jiffies). For the generic syscall optimization it doesn't help much, but enforce a valid argument to keep programs portable I only added an i386 syscall entry for now. Other architectures can follow as needed. AK: Also added some cleanups from Andrew Morton Signed-off-by: Andi Kleen --- arch/i386/kernel/syscall_table.S | 1 + arch/x86_64/ia32/ia32entry.S | 1 + include/asm-i386/unistd.h | 3 ++- include/linux/syscalls.h | 2 ++ kernel/sys.c | 31 +++++++++++++++++++++++++++++++ 5 files changed, 37 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/arch/i386/kernel/syscall_table.S b/arch/i386/kernel/syscall_table.S index dd63d4775398..7e639f78b0b9 100644 --- a/arch/i386/kernel/syscall_table.S +++ b/arch/i386/kernel/syscall_table.S @@ -317,3 +317,4 @@ ENTRY(sys_call_table) .long sys_tee /* 315 */ .long sys_vmsplice .long sys_move_pages + .long sys_getcpu diff --git a/arch/x86_64/ia32/ia32entry.S b/arch/x86_64/ia32/ia32entry.S index 30ed0f6f4a2b..32fd32bea07c 100644 --- a/arch/x86_64/ia32/ia32entry.S +++ b/arch/x86_64/ia32/ia32entry.S @@ -713,4 +713,5 @@ ia32_sys_call_table: .quad sys_tee .quad compat_sys_vmsplice .quad compat_sys_move_pages + .quad sys_getcpu ia32_syscall_end: diff --git a/include/asm-i386/unistd.h b/include/asm-i386/unistd.h index fc1c8ddae149..565d0897b205 100644 --- a/include/asm-i386/unistd.h +++ b/include/asm-i386/unistd.h @@ -323,10 +323,11 @@ #define __NR_tee 315 #define __NR_vmsplice 316 #define __NR_move_pages 317 +#define __NR_getcpu 318 #ifdef __KERNEL__ -#define NR_syscalls 318 +#define NR_syscalls 319 /* * user-visible error numbers are in the range -1 - -128: see diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h index 008f04c56737..3f0f716225ec 100644 --- a/include/linux/syscalls.h +++ b/include/linux/syscalls.h @@ -53,6 +53,7 @@ struct mq_attr; struct compat_stat; struct compat_timeval; struct robust_list_head; +struct getcpu_cache; #include #include @@ -596,5 +597,6 @@ asmlinkage long sys_get_robust_list(int pid, size_t __user *len_ptr); asmlinkage long sys_set_robust_list(struct robust_list_head __user *head, size_t len); +asmlinkage long sys_getcpu(unsigned *cpu, unsigned *node, struct getcpu_cache *cache); #endif diff --git a/kernel/sys.c b/kernel/sys.c index e236f98f7ec5..3f894775488d 100644 --- a/kernel/sys.c +++ b/kernel/sys.c @@ -28,6 +28,7 @@ #include #include #include +#include #include #include @@ -2062,3 +2063,33 @@ asmlinkage long sys_prctl(int option, unsigned long arg2, unsigned long arg3, } return error; } + +asmlinkage long sys_getcpu(unsigned __user *cpup, unsigned __user *nodep, + struct getcpu_cache __user *cache) +{ + int err = 0; + int cpu = raw_smp_processor_id(); + if (cpup) + err |= put_user(cpu, cpup); + if (nodep) + err |= put_user(cpu_to_node(cpu), nodep); + if (cache) { + /* + * The cache is not needed for this implementation, + * but make sure user programs pass something + * valid. vsyscall implementations can instead make + * good use of the cache. Only use t0 and t1 because + * these are available in both 32bit and 64bit ABI (no + * need for a compat_getcpu). 32bit has enough + * padding + */ + unsigned long t0, t1; + get_user(t0, &cache->t0); + get_user(t1, &cache->t1); + t0++; + t1++; + put_user(t0, &cache->t0); + put_user(t1, &cache->t1); + } + return err ? -EFAULT : 0; +} -- cgit v1.2.3 From 2f766d16062d0147edff91be15de4a950667ca42 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Tue, 26 Sep 2006 10:52:28 +0200 Subject: [PATCH] Clean up asm/smp.h includes No need to include it from entry.S Drop all the #ifdef __ASSEMBLY__ Signed-off-by: Andi Kleen --- arch/x86_64/kernel/entry.S | 2 -- include/asm-x86_64/smp.h | 12 ------------ 2 files changed, 14 deletions(-) (limited to 'include') diff --git a/arch/x86_64/kernel/entry.S b/arch/x86_64/kernel/entry.S index aa8d8939abc1..7eb1678e098d 100644 --- a/arch/x86_64/kernel/entry.S +++ b/arch/x86_64/kernel/entry.S @@ -27,10 +27,8 @@ * - schedule it carefully for the final hardware. */ -#define ASSEMBLY 1 #include #include -#include #include #include #include diff --git a/include/asm-x86_64/smp.h b/include/asm-x86_64/smp.h index d61547fd833b..612d208961a2 100644 --- a/include/asm-x86_64/smp.h +++ b/include/asm-x86_64/smp.h @@ -4,15 +4,12 @@ /* * We need the APIC definitions automatically as part of 'smp.h' */ -#ifndef __ASSEMBLY__ #include #include #include extern int disable_apic; -#endif #ifdef CONFIG_X86_LOCAL_APIC -#ifndef __ASSEMBLY__ #include #include #ifdef CONFIG_X86_IO_APIC @@ -21,10 +18,8 @@ extern int disable_apic; #include #include #endif -#endif #ifdef CONFIG_SMP -#ifndef ASSEMBLY #include @@ -83,13 +78,10 @@ extern void prefill_possible_map(void); extern unsigned num_processors; extern unsigned disabled_cpus; -#endif /* !ASSEMBLY */ - #define NO_PROC_ID 0xFF /* No processor magic marker */ #endif -#ifndef ASSEMBLY /* * Some lowlevel functions might want to know about * the real APIC ID <-> CPU # mapping. @@ -111,8 +103,6 @@ static inline int cpu_present_to_apicid(int mps_cpu) return BAD_APICID; } -#endif /* !ASSEMBLY */ - #ifndef CONFIG_SMP #define stack_smp_processor_id() 0 #define safe_smp_processor_id() 0 @@ -127,7 +117,6 @@ static inline int cpu_present_to_apicid(int mps_cpu) }) #endif -#ifndef __ASSEMBLY__ static __inline int logical_smp_processor_id(void) { /* we don't want to mark this access volatile - bad code generation */ @@ -146,6 +135,5 @@ static inline int smp_call_function_single(int cpuid, void (*func) (void *info), return 0; } #endif /* !CONFIG_SMP */ -#endif /* !__ASSEMBLY */ #endif -- cgit v1.2.3 From d3a4f48d4866b8623ca9adde8ce4e5fde979c132 Mon Sep 17 00:00:00 2001 From: Stephane Eranian Date: Tue, 26 Sep 2006 10:52:28 +0200 Subject: [PATCH] x86-64 TIF flags for debug regs and io bitmap in ctxsw Hello, Following my discussion with Andi. Here is a patch that introduces two new TIF flags to simplify the context switch code in __switch_to(). The idea is to minimize the number of cache lines accessed in the common case, i.e., when neither the debug registers nor the I/O bitmap are used. This patch covers the x86-64 modifications. A patch for i386 follows. Changelog: - add TIF_DEBUG to track when debug registers are active - add TIF_IO_BITMAP to track when I/O bitmap is used - modify __switch_to() to use the new TIF flags : eranian@hpl.hp.com Signed-off-by: Andi Kleen --- arch/x86_64/ia32/ptrace32.c | 4 +++ arch/x86_64/kernel/ioport.c | 1 + arch/x86_64/kernel/process.c | 73 +++++++++++++++++++++++----------------- arch/x86_64/kernel/ptrace.c | 8 +++-- include/asm-x86_64/thread_info.h | 7 ++++ 5 files changed, 60 insertions(+), 33 deletions(-) (limited to 'include') diff --git a/arch/x86_64/ia32/ptrace32.c b/arch/x86_64/ia32/ptrace32.c index 659c0722f6b8..72bf92a9d375 100644 --- a/arch/x86_64/ia32/ptrace32.c +++ b/arch/x86_64/ia32/ptrace32.c @@ -117,6 +117,10 @@ static int putreg32(struct task_struct *child, unsigned regno, u32 val) if ((0x5454 >> ((val >> (16 + 4*i)) & 0xf)) & 1) return -EIO; child->thread.debugreg7 = val; + if (val) + set_tsk_thread_flag(child, TIF_DEBUG); + else + clear_tsk_thread_flag(child, TIF_DEBUG); break; default: diff --git a/arch/x86_64/kernel/ioport.c b/arch/x86_64/kernel/ioport.c index b81614970ecc..fe063d3cfe42 100644 --- a/arch/x86_64/kernel/ioport.c +++ b/arch/x86_64/kernel/ioport.c @@ -56,6 +56,7 @@ asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int turn_on) memset(bitmap, 0xff, IO_BITMAP_BYTES); t->io_bitmap_ptr = bitmap; + set_thread_flag(TIF_IO_BITMAP); } /* diff --git a/arch/x86_64/kernel/process.c b/arch/x86_64/kernel/process.c index bb6745d13b8f..6e0527635b4c 100644 --- a/arch/x86_64/kernel/process.c +++ b/arch/x86_64/kernel/process.c @@ -350,6 +350,7 @@ void exit_thread(void) kfree(t->io_bitmap_ptr); t->io_bitmap_ptr = NULL; + clear_thread_flag(TIF_IO_BITMAP); /* * Careful, clear this in the TSS too: */ @@ -369,6 +370,7 @@ void flush_thread(void) if (t->flags & _TIF_IA32) current_thread_info()->status |= TS_COMPAT; } + t->flags &= ~_TIF_DEBUG; tsk->thread.debugreg0 = 0; tsk->thread.debugreg1 = 0; @@ -461,7 +463,7 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long rsp, asm("mov %%es,%0" : "=m" (p->thread.es)); asm("mov %%ds,%0" : "=m" (p->thread.ds)); - if (unlikely(me->thread.io_bitmap_ptr != NULL)) { + if (unlikely(test_tsk_thread_flag(me, TIF_IO_BITMAP))) { p->thread.io_bitmap_ptr = kmalloc(IO_BITMAP_BYTES, GFP_KERNEL); if (!p->thread.io_bitmap_ptr) { p->thread.io_bitmap_max = 0; @@ -469,6 +471,7 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long rsp, } memcpy(p->thread.io_bitmap_ptr, me->thread.io_bitmap_ptr, IO_BITMAP_BYTES); + set_tsk_thread_flag(p, TIF_IO_BITMAP); } /* @@ -498,6 +501,40 @@ out: */ #define loaddebug(thread,r) set_debugreg(thread->debugreg ## r, r) +static inline void __switch_to_xtra(struct task_struct *prev_p, + struct task_struct *next_p, + struct tss_struct *tss) +{ + struct thread_struct *prev, *next; + + prev = &prev_p->thread, + next = &next_p->thread; + + if (test_tsk_thread_flag(next_p, TIF_DEBUG)) { + loaddebug(next, 0); + loaddebug(next, 1); + loaddebug(next, 2); + loaddebug(next, 3); + /* no 4 and 5 */ + loaddebug(next, 6); + loaddebug(next, 7); + } + + if (test_tsk_thread_flag(next_p, TIF_IO_BITMAP)) { + /* + * Copy the relevant range of the IO bitmap. + * Normally this is 128 bytes or less: + */ + memcpy(tss->io_bitmap, next->io_bitmap_ptr, + max(prev->io_bitmap_max, next->io_bitmap_max)); + } else if (test_tsk_thread_flag(prev_p, TIF_IO_BITMAP)) { + /* + * Clear any possible leftover bits: + */ + memset(tss->io_bitmap, 0xff, prev->io_bitmap_max); + } +} + /* * switch_to(x,y) should switch tasks from x to y. * @@ -586,37 +623,11 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p) task_stack_page(next_p) + THREAD_SIZE - PDA_STACKOFFSET); /* - * Now maybe reload the debug registers + * Now maybe reload the debug registers and handle I/O bitmaps */ - if (unlikely(next->debugreg7)) { - loaddebug(next, 0); - loaddebug(next, 1); - loaddebug(next, 2); - loaddebug(next, 3); - /* no 4 and 5 */ - loaddebug(next, 6); - loaddebug(next, 7); - } - - - /* - * Handle the IO bitmap - */ - if (unlikely(prev->io_bitmap_ptr || next->io_bitmap_ptr)) { - if (next->io_bitmap_ptr) - /* - * Copy the relevant range of the IO bitmap. - * Normally this is 128 bytes or less: - */ - memcpy(tss->io_bitmap, next->io_bitmap_ptr, - max(prev->io_bitmap_max, next->io_bitmap_max)); - else { - /* - * Clear any possible leftover bits: - */ - memset(tss->io_bitmap, 0xff, prev->io_bitmap_max); - } - } + if (unlikely((task_thread_info(next_p)->flags & _TIF_WORK_CTXSW)) + || test_tsk_thread_flag(prev_p, TIF_IO_BITMAP)) + __switch_to_xtra(prev_p, next_p, tss); return prev_p; } diff --git a/arch/x86_64/kernel/ptrace.c b/arch/x86_64/kernel/ptrace.c index 2d50024c9f30..d35ec1bc696a 100644 --- a/arch/x86_64/kernel/ptrace.c +++ b/arch/x86_64/kernel/ptrace.c @@ -420,9 +420,13 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) if ((0x5554 >> ((data >> (16 + 4*i)) & 0xf)) & 1) break; if (i == 4) { - child->thread.debugreg7 = data; + child->thread.debugreg7 = data; + if (data) + set_tsk_thread_flag(child, TIF_DEBUG); + else + clear_tsk_thread_flag(child, TIF_DEBUG); ret = 0; - } + } break; } break; diff --git a/include/asm-x86_64/thread_info.h b/include/asm-x86_64/thread_info.h index 790c512a4369..787a08114b48 100644 --- a/include/asm-x86_64/thread_info.h +++ b/include/asm-x86_64/thread_info.h @@ -120,6 +120,8 @@ static inline struct thread_info *stack_thread_info(void) #define TIF_FORK 18 /* ret_from_fork */ #define TIF_ABI_PENDING 19 #define TIF_MEMDIE 20 +#define TIF_DEBUG 21 /* uses debug registers */ +#define TIF_IO_BITMAP 22 /* uses I/O bitmap */ #define _TIF_SYSCALL_TRACE (1< Date: Tue, 26 Sep 2006 10:52:28 +0200 Subject: [PATCH] i386: Account spinlocks to the caller during profiling for !FP kernels This ports the algorithm from x86-64 (with improvements) to i386. Previously this only worked for frame pointer enabled kernels. But spinlocks have a very simple stack frame that can be manually analyzed. Do this. Signed-off-by: Andi Kleen --- arch/i386/kernel/time.c | 23 +++++++++++++++++++---- include/asm-i386/ptrace.h | 4 ---- kernel/spinlock.c | 5 +++++ 3 files changed, 24 insertions(+), 8 deletions(-) (limited to 'include') diff --git a/arch/i386/kernel/time.c b/arch/i386/kernel/time.c index edd00f6cee37..5af802ef00b2 100644 --- a/arch/i386/kernel/time.c +++ b/arch/i386/kernel/time.c @@ -130,18 +130,33 @@ static int set_rtc_mmss(unsigned long nowtime) int timer_ack; -#if defined(CONFIG_SMP) && defined(CONFIG_FRAME_POINTER) unsigned long profile_pc(struct pt_regs *regs) { unsigned long pc = instruction_pointer(regs); - if (!user_mode_vm(regs) && in_lock_functions(pc)) +#ifdef CONFIG_SMP + if (!user_mode_vm(regs) && in_lock_functions(pc)) { +#ifdef CONFIG_FRAME_POINTER return *(unsigned long *)(regs->ebp + 4); - +#else + unsigned long *sp; + if ((regs->xcs & 3) == 0) + sp = (unsigned long *)®s->esp; + else + sp = (unsigned long *)regs->esp; + /* Return address is either directly at stack pointer + or above a saved eflags. Eflags has bits 22-31 zero, + kernel addresses don't. */ + if (sp[0] >> 22) + return sp[0]; + if (sp[1] >> 22) + return sp[1]; +#endif + } +#endif return pc; } EXPORT_SYMBOL(profile_pc); -#endif /* * This is the same as the above, except we _also_ save the current diff --git a/include/asm-i386/ptrace.h b/include/asm-i386/ptrace.h index f324c53b6f9a..30a442ec2059 100644 --- a/include/asm-i386/ptrace.h +++ b/include/asm-i386/ptrace.h @@ -80,11 +80,7 @@ static inline int user_mode_vm(struct pt_regs *regs) return ((regs->xcs & 3) | (regs->eflags & VM_MASK)) != 0; } #define instruction_pointer(regs) ((regs)->eip) -#if defined(CONFIG_SMP) && defined(CONFIG_FRAME_POINTER) extern unsigned long profile_pc(struct pt_regs *regs); -#else -#define profile_pc(regs) instruction_pointer(regs) -#endif #endif /* __KERNEL__ */ #endif diff --git a/kernel/spinlock.c b/kernel/spinlock.c index fb524b009eef..9644a41e0bef 100644 --- a/kernel/spinlock.c +++ b/kernel/spinlock.c @@ -7,6 +7,11 @@ * * This file contains the spinlock/rwlock implementations for the * SMP and the DEBUG_SPINLOCK cases. (UP-nondebug inlines them) + * + * Note that some architectures have special knowledge about the + * stack frames of these functions in their profile_pc. If you + * change anything significant here that could change the stack + * frame contact the architecture maintainers. */ #include -- cgit v1.2.3 From b4062b16094038334d9bbadac0397a3fc9e981b0 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Tue, 26 Sep 2006 10:52:28 +0200 Subject: [PATCH] Support patchable lock prefix for pure assembly files Signed-off-by: Andi Kleen --- include/asm-x86_64/alternative-asm.i | 14 ++++++++++++++ 1 file changed, 14 insertions(+) create mode 100644 include/asm-x86_64/alternative-asm.i (limited to 'include') diff --git a/include/asm-x86_64/alternative-asm.i b/include/asm-x86_64/alternative-asm.i new file mode 100644 index 000000000000..e4041f4fa4dc --- /dev/null +++ b/include/asm-x86_64/alternative-asm.i @@ -0,0 +1,14 @@ +#include + +#ifdef CONFIG_SMP + .macro LOCK_PREFIX +1: lock + .section .smp_locks,"a" + .align 8 + .quad 1b + .previous + .endm +#else + .macro LOCK_PREFIX + .endm +#endif -- cgit v1.2.3 From 9a0b26e6bc4ae1979d9bcc6194e57a71b2b5cac6 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Tue, 26 Sep 2006 10:52:28 +0200 Subject: [PATCH] Clean up read write lock assembly - Move the slow path fallbacks to their own assembly files This makes them much easier to read and is needed for the next change. - Add CFI annotations for unwinding (XXX need review) - Remove constant case which can never happen with out of line spinlocks - Use patchable LOCK prefixes - Don't use lock sections anymore for inline code because they can't be expressed by the unwinder (this adds one taken jump to the lock fast path) Cc: jbeulich@novell.com Signed-off-by: Andi Kleen --- arch/x86_64/lib/Makefile | 2 +- arch/x86_64/lib/rwlock.S | 38 ++++++++++++++++++++++++ arch/x86_64/lib/thunk.S | 30 ------------------- include/asm-x86_64/rwlock.h | 68 +++++++------------------------------------ include/asm-x86_64/spinlock.h | 11 ++----- 5 files changed, 51 insertions(+), 98 deletions(-) create mode 100644 arch/x86_64/lib/rwlock.S (limited to 'include') diff --git a/arch/x86_64/lib/Makefile b/arch/x86_64/lib/Makefile index ccef6ae747a3..b78d4170fce2 100644 --- a/arch/x86_64/lib/Makefile +++ b/arch/x86_64/lib/Makefile @@ -9,4 +9,4 @@ obj-y := io.o iomap_copy.o lib-y := csum-partial.o csum-copy.o csum-wrappers.o delay.o \ usercopy.o getuser.o putuser.o \ thunk.o clear_page.o copy_page.o bitstr.o bitops.o -lib-y += memcpy.o memmove.o memset.o copy_user.o +lib-y += memcpy.o memmove.o memset.o copy_user.o rwlock.o diff --git a/arch/x86_64/lib/rwlock.S b/arch/x86_64/lib/rwlock.S new file mode 100644 index 000000000000..0cde1f807314 --- /dev/null +++ b/arch/x86_64/lib/rwlock.S @@ -0,0 +1,38 @@ +/* Slow paths of read/write spinlocks. */ + +#include +#include +#include +#include + +/* rdi: pointer to rwlock_t */ +ENTRY(__write_lock_failed) + CFI_STARTPROC + LOCK_PREFIX + addl $RW_LOCK_BIAS,(%rdi) +1: rep + nop + cmpl $RW_LOCK_BIAS,(%rdi) + jne 1b + LOCK_PREFIX + subl $RW_LOCK_BIAS,(%rdi) + jnz __write_lock_failed + ret + CFI_ENDPROC +END(__write_lock_failed) + +/* rdi: pointer to rwlock_t */ +ENTRY(__read_lock_failed) + CFI_STARTPROC + LOCK_PREFIX + incl (%rdi) +1: rep + nop + cmpl $1,(%rdi) + js 1b + LOCK_PREFIX + decl (%rdi) + js __read_lock_failed + ret + CFI_ENDPROC +END(__read_lock_failed) diff --git a/arch/x86_64/lib/thunk.S b/arch/x86_64/lib/thunk.S index 332ea5dff916..6cff27c775ae 100644 --- a/arch/x86_64/lib/thunk.S +++ b/arch/x86_64/lib/thunk.S @@ -67,33 +67,3 @@ restore_norax: RESTORE_ARGS 1 ret CFI_ENDPROC - -#ifdef CONFIG_SMP -/* Support for read/write spinlocks. */ - .text -/* rax: pointer to rwlock_t */ -ENTRY(__write_lock_failed) - lock - addl $RW_LOCK_BIAS,(%rax) -1: rep - nop - cmpl $RW_LOCK_BIAS,(%rax) - jne 1b - lock - subl $RW_LOCK_BIAS,(%rax) - jnz __write_lock_failed - ret - -/* rax: pointer to rwlock_t */ -ENTRY(__read_lock_failed) - lock - incl (%rax) -1: rep - nop - cmpl $1,(%rax) - js 1b - lock - decl (%rax) - js __read_lock_failed - ret -#endif diff --git a/include/asm-x86_64/rwlock.h b/include/asm-x86_64/rwlock.h index dea0e9459264..28a080d23119 100644 --- a/include/asm-x86_64/rwlock.h +++ b/include/asm-x86_64/rwlock.h @@ -18,69 +18,21 @@ #ifndef _ASM_X86_64_RWLOCK_H #define _ASM_X86_64_RWLOCK_H -#include - #define RW_LOCK_BIAS 0x01000000 -#define RW_LOCK_BIAS_STR "0x01000000" +#define RW_LOCK_BIAS_STR "0x01000000" -#define __build_read_lock_ptr(rw, helper) \ +#define __build_read_lock(rw) \ asm volatile(LOCK_PREFIX "subl $1,(%0)\n\t" \ - "js 2f\n" \ - "1:\n" \ - LOCK_SECTION_START("") \ - "2:\tcall " helper "\n\t" \ - "jmp 1b\n" \ - LOCK_SECTION_END \ - ::"a" (rw) : "memory") - -#define __build_read_lock_const(rw, helper) \ - asm volatile(LOCK_PREFIX "subl $1,%0\n\t" \ - "js 2f\n" \ + "jns 1f\n" \ + "call __read_lock_failed\n" \ "1:\n" \ - LOCK_SECTION_START("") \ - "2:\tpushq %%rax\n\t" \ - "leaq %0,%%rax\n\t" \ - "call " helper "\n\t" \ - "popq %%rax\n\t" \ - "jmp 1b\n" \ - LOCK_SECTION_END \ - :"=m" (*((volatile int *)rw))::"memory") - -#define __build_read_lock(rw, helper) do { \ - if (__builtin_constant_p(rw)) \ - __build_read_lock_const(rw, helper); \ - else \ - __build_read_lock_ptr(rw, helper); \ - } while (0) + ::"D" (rw), "i" (RW_LOCK_BIAS) : "memory") -#define __build_write_lock_ptr(rw, helper) \ - asm volatile(LOCK_PREFIX "subl $" RW_LOCK_BIAS_STR ",(%0)\n\t" \ - "jnz 2f\n" \ +#define __build_write_lock(rw) \ + asm volatile(LOCK_PREFIX "subl %1,(%0)\n\t" \ + "jz 1f\n" \ + "\tcall __write_lock_failed\n\t" \ "1:\n" \ - LOCK_SECTION_START("") \ - "2:\tcall " helper "\n\t" \ - "jmp 1b\n" \ - LOCK_SECTION_END \ - ::"a" (rw) : "memory") - -#define __build_write_lock_const(rw, helper) \ - asm volatile(LOCK_PREFIX "subl $" RW_LOCK_BIAS_STR ",%0\n\t" \ - "jnz 2f\n" \ - "1:\n" \ - LOCK_SECTION_START("") \ - "2:\tpushq %%rax\n\t" \ - "leaq %0,%%rax\n\t" \ - "call " helper "\n\t" \ - "popq %%rax\n\t" \ - "jmp 1b\n" \ - LOCK_SECTION_END \ - :"=m" (*((volatile long *)rw))::"memory") - -#define __build_write_lock(rw, helper) do { \ - if (__builtin_constant_p(rw)) \ - __build_write_lock_const(rw, helper); \ - else \ - __build_write_lock_ptr(rw, helper); \ - } while (0) + ::"D" (rw), "i" (RW_LOCK_BIAS) : "memory") #endif diff --git a/include/asm-x86_64/spinlock.h b/include/asm-x86_64/spinlock.h index 248a79f0eaff..a8e3d89f591f 100644 --- a/include/asm-x86_64/spinlock.h +++ b/include/asm-x86_64/spinlock.h @@ -79,13 +79,6 @@ static inline void __raw_spin_unlock(raw_spinlock_t *lock) * * On x86, we implement read-write locks as a 32-bit counter * with the high bit (sign) being the "contended" bit. - * - * The inline assembly is non-obvious. Think about it. - * - * Changed to use the same technique as rw semaphores. See - * semaphore.h for details. -ben - * - * the helpers are in arch/i386/kernel/semaphore.c */ #define __raw_read_can_lock(x) ((int)(x)->lock > 0) @@ -93,12 +86,12 @@ static inline void __raw_spin_unlock(raw_spinlock_t *lock) static inline void __raw_read_lock(raw_rwlock_t *rw) { - __build_read_lock(rw, "__read_lock_failed"); + __build_read_lock(rw); } static inline void __raw_write_lock(raw_rwlock_t *rw) { - __build_write_lock(rw, "__write_lock_failed"); + __build_write_lock(rw); } static inline int __raw_read_trylock(raw_rwlock_t *lock) -- cgit v1.2.3 From 1a015b5644ec6df0a2c4cbeff1f8a3d24ba0478e Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Tue, 26 Sep 2006 10:52:29 +0200 Subject: [PATCH] i386: Remove const case for rwlocks rwlocks are now out of line, so it near never triggers. Also it was incompatible with the new dwarf2 unwinder because it had unannotiatable push/pops. Signed-off-by: Andi Kleen --- include/asm-i386/rwlock.h | 38 ++------------------------------------ 1 file changed, 2 insertions(+), 36 deletions(-) (limited to 'include') diff --git a/include/asm-i386/rwlock.h b/include/asm-i386/rwlock.h index 87c069ccba08..f40ccbd8cb7f 100644 --- a/include/asm-i386/rwlock.h +++ b/include/asm-i386/rwlock.h @@ -20,52 +20,18 @@ #define RW_LOCK_BIAS 0x01000000 #define RW_LOCK_BIAS_STR "0x01000000" -#define __build_read_lock_ptr(rw, helper) \ +#define __build_read_lock(rw, helper) \ asm volatile(LOCK_PREFIX " subl $1,(%0)\n\t" \ "jns 1f\n" \ "call " helper "\n\t" \ "1:\n" \ ::"a" (rw) : "memory") -#define __build_read_lock_const(rw, helper) \ - asm volatile(LOCK_PREFIX " subl $1,%0\n\t" \ - "jns 1f\n" \ - "pushl %%eax\n\t" \ - "leal %0,%%eax\n\t" \ - "call " helper "\n\t" \ - "popl %%eax\n\t" \ - "1:\n" \ - :"+m" (*(volatile int *)rw) : : "memory") - -#define __build_read_lock(rw, helper) do { \ - if (__builtin_constant_p(rw)) \ - __build_read_lock_const(rw, helper); \ - else \ - __build_read_lock_ptr(rw, helper); \ - } while (0) - -#define __build_write_lock_ptr(rw, helper) \ +#define __build_write_lock(rw, helper) \ asm volatile(LOCK_PREFIX " subl $" RW_LOCK_BIAS_STR ",(%0)\n\t" \ "jz 1f\n" \ "call " helper "\n\t" \ "1:\n" \ ::"a" (rw) : "memory") -#define __build_write_lock_const(rw, helper) \ - asm volatile(LOCK_PREFIX " subl $" RW_LOCK_BIAS_STR ",%0\n\t" \ - "jz 1f\n" \ - "pushl %%eax\n\t" \ - "leal %0,%%eax\n\t" \ - "call " helper "\n\t" \ - "popl %%eax\n\t" \ - "1:\n" \ - :"+m" (*(volatile int *)rw) : : "memory") - -#define __build_write_lock(rw, helper) do { \ - if (__builtin_constant_p(rw)) \ - __build_write_lock_const(rw, helper); \ - else \ - __build_write_lock_ptr(rw, helper); \ - } while (0) - #endif -- cgit v1.2.3 From b06babac45e1546dfb504f1f25eb0495632bfc41 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Tue, 26 Sep 2006 10:52:29 +0200 Subject: [PATCH] Add proper alignment to ENTRY Previously it didn't align. Use the same one as the C compiler in blended mode, which is good for K8 and Core2 and doesn't hurt on P4. Signed-off-by: Andi Kleen --- arch/x86_64/kernel/entry.S | 3 +-- include/asm-x86_64/linkage.h | 2 +- 2 files changed, 2 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/arch/x86_64/kernel/entry.S b/arch/x86_64/kernel/entry.S index 7eb1678e098d..2dc5c01f754d 100644 --- a/arch/x86_64/kernel/entry.S +++ b/arch/x86_64/kernel/entry.S @@ -617,8 +617,7 @@ retint_signal: #ifdef CONFIG_PREEMPT /* Returning to kernel space. Check if we need preemption */ /* rcx: threadinfo. interrupts off. */ - .p2align -retint_kernel: +ENTRY(retint_kernel) cmpl $0,threadinfo_preempt_count(%rcx) jnz retint_restore_args bt $TIF_NEED_RESCHED,threadinfo_flags(%rcx) diff --git a/include/asm-x86_64/linkage.h b/include/asm-x86_64/linkage.h index 291c2d01c44f..b5f39d0189ce 100644 --- a/include/asm-x86_64/linkage.h +++ b/include/asm-x86_64/linkage.h @@ -1,6 +1,6 @@ #ifndef __ASM_LINKAGE_H #define __ASM_LINKAGE_H -/* Nothing to see here... */ +#define __ALIGN .p2align 4,,15 #endif -- cgit v1.2.3 From 07c9819b31eda7954feddc83f2fae035f31c11e1 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Tue, 26 Sep 2006 10:52:29 +0200 Subject: [PATCH] i386: add alternative-asm.h to allow LOCK_PREFIX replacement in .S files LOCK_PREFIX is replaced by nops on UP systems, so it has to be a special macro. Previously this was only possible from C. Allow it for pure assembly files too. Similar to earlier x86-64 patch. Signed-off-by: Andi Kleen --- include/asm-i386/alternative-asm.i | 14 ++++++++++++++ 1 file changed, 14 insertions(+) create mode 100644 include/asm-i386/alternative-asm.i (limited to 'include') diff --git a/include/asm-i386/alternative-asm.i b/include/asm-i386/alternative-asm.i new file mode 100644 index 000000000000..6c47e3b9484b --- /dev/null +++ b/include/asm-i386/alternative-asm.i @@ -0,0 +1,14 @@ +#include + +#ifdef CONFIG_SMP + .macro LOCK_PREFIX +1: lock + .section .smp_locks,"a" + .align 4 + .long 1b + .previous + .endm +#else + .macro LOCK_PREFIX + .endm +#endif -- cgit v1.2.3 From ecaf45ee5ce60afe7cc46e91d82c1b0cbda09387 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Tue, 26 Sep 2006 10:52:29 +0200 Subject: [PATCH] i386: Redo semaphore and rwlock assembly helpers - Move them to a pure assembly file. Previously they were in a C file that only consisted of inline assembly. Doing it in pure assembler is much nicer. - Add a frame.i include with FRAME/ENDFRAME macros to easily add frame pointers to assembly functions - Add dwarf2 annotation to them so that the new dwarf2 unwinder doesn't get stuck on them - Random cleanups Includes feedback from Jan Beulich and a UML build fix from Andrew Morton. Cc: jbeulich@novell.com Cc: jdike@addtoit.com Signed-off-by: Andi Kleen --- arch/i386/kernel/Makefile | 2 +- arch/i386/kernel/semaphore.c | 134 ---------------------------------- arch/i386/lib/Makefile | 2 +- arch/i386/lib/semaphore.S | 154 +++++++++++++++++++++++++++++++++++++++ arch/um/sys-i386/Makefile | 2 +- include/asm-i386/frame.i | 24 ++++++ include/asm-um/alternative-asm.i | 6 ++ include/asm-um/frame.i | 6 ++ 8 files changed, 193 insertions(+), 137 deletions(-) delete mode 100644 arch/i386/kernel/semaphore.c create mode 100644 arch/i386/lib/semaphore.S create mode 100644 include/asm-i386/frame.i create mode 100644 include/asm-um/alternative-asm.i create mode 100644 include/asm-um/frame.i (limited to 'include') diff --git a/arch/i386/kernel/Makefile b/arch/i386/kernel/Makefile index 5427a842e841..dab497472deb 100644 --- a/arch/i386/kernel/Makefile +++ b/arch/i386/kernel/Makefile @@ -4,7 +4,7 @@ extra-y := head.o init_task.o vmlinux.lds -obj-y := process.o semaphore.o signal.o entry.o traps.o irq.o \ +obj-y := process.o signal.o entry.o traps.o irq.o \ ptrace.o time.o ioport.o ldt.o setup.o i8259.o sys_i386.o \ pci-dma.o i386_ksyms.o i387.o bootflag.o \ quirks.o i8237.o topology.o alternative.o i8253.o tsc.o diff --git a/arch/i386/kernel/semaphore.c b/arch/i386/kernel/semaphore.c deleted file mode 100644 index 98352c374c76..000000000000 --- a/arch/i386/kernel/semaphore.c +++ /dev/null @@ -1,134 +0,0 @@ -/* - * i386 semaphore implementation. - * - * (C) Copyright 1999 Linus Torvalds - * - * Portions Copyright 1999 Red Hat, Inc. - * - * 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. - * - * rw semaphores implemented November 1999 by Benjamin LaHaise - */ -#include - -/* - * The semaphore operations have a special calling sequence that - * allow us to do a simpler in-line version of them. These routines - * need to convert that sequence back into the C sequence when - * there is contention on the semaphore. - * - * %eax contains the semaphore pointer on entry. Save the C-clobbered - * registers (%eax, %edx and %ecx) except %eax whish is either a return - * value or just clobbered.. - */ -asm( -".section .sched.text\n" -".align 4\n" -".globl __down_failed\n" -"__down_failed:\n\t" -#if defined(CONFIG_FRAME_POINTER) - "pushl %ebp\n\t" - "movl %esp,%ebp\n\t" -#endif - "pushl %edx\n\t" - "pushl %ecx\n\t" - "call __down\n\t" - "popl %ecx\n\t" - "popl %edx\n\t" -#if defined(CONFIG_FRAME_POINTER) - "movl %ebp,%esp\n\t" - "popl %ebp\n\t" -#endif - "ret" -); - -asm( -".section .sched.text\n" -".align 4\n" -".globl __down_failed_interruptible\n" -"__down_failed_interruptible:\n\t" -#if defined(CONFIG_FRAME_POINTER) - "pushl %ebp\n\t" - "movl %esp,%ebp\n\t" -#endif - "pushl %edx\n\t" - "pushl %ecx\n\t" - "call __down_interruptible\n\t" - "popl %ecx\n\t" - "popl %edx\n\t" -#if defined(CONFIG_FRAME_POINTER) - "movl %ebp,%esp\n\t" - "popl %ebp\n\t" -#endif - "ret" -); - -asm( -".section .sched.text\n" -".align 4\n" -".globl __down_failed_trylock\n" -"__down_failed_trylock:\n\t" -#if defined(CONFIG_FRAME_POINTER) - "pushl %ebp\n\t" - "movl %esp,%ebp\n\t" -#endif - "pushl %edx\n\t" - "pushl %ecx\n\t" - "call __down_trylock\n\t" - "popl %ecx\n\t" - "popl %edx\n\t" -#if defined(CONFIG_FRAME_POINTER) - "movl %ebp,%esp\n\t" - "popl %ebp\n\t" -#endif - "ret" -); - -asm( -".section .sched.text\n" -".align 4\n" -".globl __up_wakeup\n" -"__up_wakeup:\n\t" - "pushl %edx\n\t" - "pushl %ecx\n\t" - "call __up\n\t" - "popl %ecx\n\t" - "popl %edx\n\t" - "ret" -); - -/* - * rw spinlock fallbacks - */ -#if defined(CONFIG_SMP) -asm( -".section .sched.text\n" -".align 4\n" -".globl __write_lock_failed\n" -"__write_lock_failed:\n\t" - LOCK_PREFIX "addl $" RW_LOCK_BIAS_STR ",(%eax)\n" -"1: rep; nop\n\t" - "cmpl $" RW_LOCK_BIAS_STR ",(%eax)\n\t" - "jne 1b\n\t" - LOCK_PREFIX "subl $" RW_LOCK_BIAS_STR ",(%eax)\n\t" - "jnz __write_lock_failed\n\t" - "ret" -); - -asm( -".section .sched.text\n" -".align 4\n" -".globl __read_lock_failed\n" -"__read_lock_failed:\n\t" - LOCK_PREFIX "incl (%eax)\n" -"1: rep; nop\n\t" - "cmpl $1,(%eax)\n\t" - "js 1b\n\t" - LOCK_PREFIX "decl (%eax)\n\t" - "js __read_lock_failed\n\t" - "ret" -); -#endif diff --git a/arch/i386/lib/Makefile b/arch/i386/lib/Makefile index 914933e9ec3d..d86a548b8d54 100644 --- a/arch/i386/lib/Makefile +++ b/arch/i386/lib/Makefile @@ -4,6 +4,6 @@ lib-y = checksum.o delay.o usercopy.o getuser.o putuser.o memcpy.o strstr.o \ - bitops.o + bitops.o semaphore.o lib-$(CONFIG_X86_USE_3DNOW) += mmx.o diff --git a/arch/i386/lib/semaphore.S b/arch/i386/lib/semaphore.S new file mode 100644 index 000000000000..e16ff1696390 --- /dev/null +++ b/arch/i386/lib/semaphore.S @@ -0,0 +1,154 @@ +/* + * i386 semaphore implementation. + * + * (C) Copyright 1999 Linus Torvalds + * + * Portions Copyright 1999 Red Hat, Inc. + * + * 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. + * + * rw semaphores implemented November 1999 by Benjamin LaHaise + */ + +#include +#include +#include +#include +#include +#include + +/* + * The semaphore operations have a special calling sequence that + * allow us to do a simpler in-line version of them. These routines + * need to convert that sequence back into the C sequence when + * there is contention on the semaphore. + * + * %eax contains the semaphore pointer on entry. Save the C-clobbered + * registers (%eax, %edx and %ecx) except %eax whish is either a return + * value or just clobbered.. + */ + .section .sched.text +ENTRY(__down_failed) + CFI_STARTPROC + FRAME + pushl %edx + CFI_ADJUST_CFA_OFFSET 4 + CFI_REL_OFFSET edx,0 + pushl %ecx + CFI_ADJUST_CFA_OFFSET 4 + CFI_REL_OFFSET ecx,0 + call __down + popl %ecx + CFI_ADJUST_CFA_OFFSET -4 + CFI_RESTORE ecx + popl %edx + CFI_ADJUST_CFA_OFFSET -4 + CFI_RESTORE edx + ENDFRAME + ret + CFI_ENDPROC + END(__down_failed) + +ENTRY(__down_failed_interruptible) + CFI_STARTPROC + FRAME + pushl %edx + CFI_ADJUST_CFA_OFFSET 4 + CFI_REL_OFFSET edx,0 + pushl %ecx + CFI_ADJUST_CFA_OFFSET 4 + CFI_REL_OFFSET ecx,0 + call __down_interruptible + popl %ecx + CFI_ADJUST_CFA_OFFSET -4 + CFI_RESTORE ecx + popl %edx + CFI_ADJUST_CFA_OFFSET -4 + CFI_RESTORE edx + ENDFRAME + ret + CFI_ENDPROC + END(__down_failed_interruptible) + +ENTRY(__down_failed_trylock) + CFI_STARTPROC + FRAME + pushl %edx + CFI_ADJUST_CFA_OFFSET 4 + CFI_REL_OFFSET edx,0 + pushl %ecx + CFI_ADJUST_CFA_OFFSET 4 + CFI_REL_OFFSET ecx,0 + call __down_trylock + popl %ecx + CFI_ADJUST_CFA_OFFSET -4 + CFI_RESTORE ecx + popl %edx + CFI_ADJUST_CFA_OFFSET -4 + CFI_RESTORE edx + ENDFRAME + ret + CFI_ENDPROC + END(__down_failed_trylock) + +ENTRY(__up_wakeup) + CFI_STARTPROC + FRAME + pushl %edx + CFI_ADJUST_CFA_OFFSET 4 + CFI_REL_OFFSET edx,0 + pushl %ecx + CFI_ADJUST_CFA_OFFSET 4 + CFI_REL_OFFSET ecx,0 + call __up + popl %ecx + CFI_ADJUST_CFA_OFFSET -4 + CFI_RESTORE ecx + popl %edx + CFI_ADJUST_CFA_OFFSET -4 + CFI_RESTORE edx + ENDFRAME + ret + CFI_ENDPROC + END(__up_wakeup) + +/* + * rw spinlock fallbacks + */ +#ifdef CONFIG_SMP +ENTRY(__write_lock_failed) + CFI_STARTPROC simple + FRAME +2: LOCK_PREFIX + addl $ RW_LOCK_BIAS,(%eax) +1: rep; nop + cmpl $ RW_LOCK_BIAS,(%eax) + jne 1b + LOCK_PREFIX + subl $ RW_LOCK_BIAS,(%eax) + jnz 2b + ENDFRAME + ret + CFI_ENDPROC + END(__write_lock_failed) + +ENTRY(__read_lock_failed) + CFI_STARTPROC + FRAME +2: LOCK_PREFIX + incl (%eax) +1: rep; nop + cmpl $1,(%eax) + js 1b + LOCK_PREFIX + decl (%eax) + js 2b + ENDFRAME + ret + CFI_ENDPROC + END(__read_lock_failed) + +#endif diff --git a/arch/um/sys-i386/Makefile b/arch/um/sys-i386/Makefile index 374d61a19439..6289779ca67c 100644 --- a/arch/um/sys-i386/Makefile +++ b/arch/um/sys-i386/Makefile @@ -4,7 +4,7 @@ obj-y = bugs.o checksum.o delay.o fault.o ksyms.o ldt.o ptrace.o \ obj-$(CONFIG_MODE_SKAS) += stub.o stub_segv.o -subarch-obj-y = lib/bitops.o kernel/semaphore.o +subarch-obj-y = lib/bitops.o lib/semaphore.o subarch-obj-$(CONFIG_HIGHMEM) += mm/highmem.o subarch-obj-$(CONFIG_MODULES) += kernel/module.o diff --git a/include/asm-i386/frame.i b/include/asm-i386/frame.i new file mode 100644 index 000000000000..4d68ddce18b6 --- /dev/null +++ b/include/asm-i386/frame.i @@ -0,0 +1,24 @@ +#include +#include + +/* The annotation hides the frame from the unwinder and makes it look + like a ordinary ebp save/restore. This avoids some special cases for + frame pointer later */ +#ifdef CONFIG_FRAME_POINTER + .macro FRAME + pushl %ebp + CFI_ADJUST_CFA_OFFSET 4 + CFI_REL_OFFSET ebp,0 + movl %esp,%ebp + .endm + .macro ENDFRAME + popl %ebp + CFI_ADJUST_CFA_OFFSET -4 + CFI_RESTORE ebp + .endm +#else + .macro FRAME + .endm + .macro ENDFRAME + .endm +#endif diff --git a/include/asm-um/alternative-asm.i b/include/asm-um/alternative-asm.i new file mode 100644 index 000000000000..cae9faca132f --- /dev/null +++ b/include/asm-um/alternative-asm.i @@ -0,0 +1,6 @@ +#ifndef __UM_ALTERNATIVE_ASM_I +#define __UM_ALTERNATIVE_ASM_I + +#include "asm/arch/alternative-asm.i" + +#endif diff --git a/include/asm-um/frame.i b/include/asm-um/frame.i new file mode 100644 index 000000000000..09d5dca5d928 --- /dev/null +++ b/include/asm-um/frame.i @@ -0,0 +1,6 @@ +#ifndef __UM_FRAME_I +#define __UM_FRAME_I + +#include "asm/arch/frame.i" + +#endif -- cgit v1.2.3 From 7f11d8a5efd625ffa41cde1d8472f85e885478ec Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Tue, 26 Sep 2006 10:52:29 +0200 Subject: [PATCH] Remove all ifdefs for local/io apic IO-APIC or local APIC can only be disabled at runtime anyways and Kconfig has forced these options on for a long time now. The Kconfigs are kept only now for the benefit of the shared acpi boot.c code. Signed-off-by: Andi Kleen --- arch/x86_64/kernel/Makefile | 4 ++-- arch/x86_64/kernel/apic.c | 6 +----- arch/x86_64/kernel/crash.c | 2 -- arch/x86_64/kernel/entry.S | 2 -- arch/x86_64/kernel/head64.c | 2 -- arch/x86_64/kernel/i8259.c | 9 --------- arch/x86_64/kernel/irq.c | 6 ------ arch/x86_64/kernel/mpparse.c | 9 --------- arch/x86_64/kernel/setup.c | 6 ------ arch/x86_64/kernel/smpboot.c | 5 ----- arch/x86_64/kernel/time.c | 8 -------- arch/x86_64/kernel/traps.c | 2 -- include/asm-x86_64/apic.h | 4 ---- include/asm-x86_64/fixmap.h | 4 ---- include/asm-x86_64/io_apic.h | 6 ------ include/asm-x86_64/irq.h | 2 -- include/asm-x86_64/mpspec.h | 2 -- include/asm-x86_64/smp.h | 4 ---- 18 files changed, 3 insertions(+), 80 deletions(-) (limited to 'include') diff --git a/arch/x86_64/kernel/Makefile b/arch/x86_64/kernel/Makefile index b5aaeafc1cd3..0ef39553c0f6 100644 --- a/arch/x86_64/kernel/Makefile +++ b/arch/x86_64/kernel/Makefile @@ -20,8 +20,8 @@ obj-$(CONFIG_X86_MSR) += msr.o obj-$(CONFIG_MICROCODE) += microcode.o obj-$(CONFIG_X86_CPUID) += cpuid.o obj-$(CONFIG_SMP) += smp.o smpboot.o trampoline.o -obj-$(CONFIG_X86_LOCAL_APIC) += apic.o nmi.o -obj-$(CONFIG_X86_IO_APIC) += io_apic.o mpparse.o \ +obj-y += apic.o nmi.o +obj-y += io_apic.o mpparse.o \ genapic.o genapic_cluster.o genapic_flat.o obj-$(CONFIG_KEXEC) += machine_kexec.o relocate_kernel.o crash.o obj-$(CONFIG_CRASH_DUMP) += crash_dump.o diff --git a/arch/x86_64/kernel/apic.c b/arch/x86_64/kernel/apic.c index 63d9b037afc6..c6ca100a7dea 100644 --- a/arch/x86_64/kernel/apic.c +++ b/arch/x86_64/kernel/apic.c @@ -661,7 +661,6 @@ void __init init_apic_mappings(void) */ boot_cpu_id = GET_APIC_ID(apic_read(APIC_ID)); -#ifdef CONFIG_X86_IO_APIC { unsigned long ioapic_phys, idx = FIX_IO_APIC_BASE_0; int i; @@ -679,7 +678,6 @@ void __init init_apic_mappings(void) idx++; } } -#endif } /* @@ -1129,12 +1127,10 @@ int __init APIC_init_uniprocessor (void) setup_local_APIC(); -#ifdef CONFIG_X86_IO_APIC if (smp_found_config && !skip_ioapic_setup && nr_ioapics) - setup_IO_APIC(); + setup_IO_APIC(); else nr_ioapics = 0; -#endif setup_boot_APIC_clock(); check_nmi_watchdog(); return 0; diff --git a/arch/x86_64/kernel/crash.c b/arch/x86_64/kernel/crash.c index 7d7a9e75f70c..3525f884af82 100644 --- a/arch/x86_64/kernel/crash.c +++ b/arch/x86_64/kernel/crash.c @@ -194,9 +194,7 @@ void machine_crash_shutdown(struct pt_regs *regs) if(cpu_has_apic) disable_local_APIC(); -#if defined(CONFIG_X86_IO_APIC) disable_IO_APIC(); -#endif crash_save_self(regs); } diff --git a/arch/x86_64/kernel/entry.S b/arch/x86_64/kernel/entry.S index 2dc5c01f754d..a0cf36ba7c56 100644 --- a/arch/x86_64/kernel/entry.S +++ b/arch/x86_64/kernel/entry.S @@ -676,7 +676,6 @@ ENTRY(call_function_interrupt) END(call_function_interrupt) #endif -#ifdef CONFIG_X86_LOCAL_APIC ENTRY(apic_timer_interrupt) apicinterrupt LOCAL_TIMER_VECTOR,smp_apic_timer_interrupt END(apic_timer_interrupt) @@ -688,7 +687,6 @@ END(error_interrupt) ENTRY(spurious_interrupt) apicinterrupt SPURIOUS_APIC_VECTOR,smp_spurious_interrupt END(spurious_interrupt) -#endif /* * Exception entry points. diff --git a/arch/x86_64/kernel/head64.c b/arch/x86_64/kernel/head64.c index 36647ce6aecb..bacbd75c63ad 100644 --- a/arch/x86_64/kernel/head64.c +++ b/arch/x86_64/kernel/head64.c @@ -111,10 +111,8 @@ void __init x86_64_start_kernel(char * real_mode_data) if (s != NULL) numa_setup(s+5); #endif -#ifdef CONFIG_X86_IO_APIC if (strstr(saved_command_line, "disableapic")) disable_apic = 1; -#endif /* You need early console to see that */ if (__pa_symbol(&_end) >= KERNEL_TEXT_SIZE) panic("Kernel too big for kernel mapping\n"); diff --git a/arch/x86_64/kernel/i8259.c b/arch/x86_64/kernel/i8259.c index 0434b1f8e3dd..d2f5acde5749 100644 --- a/arch/x86_64/kernel/i8259.c +++ b/arch/x86_64/kernel/i8259.c @@ -55,7 +55,6 @@ */ BUILD_16_IRQS(0x0) -#ifdef CONFIG_X86_LOCAL_APIC /* * The IO-APIC gives us many more interrupt sources. Most of these * are unused but an SMP system is supposed to have enough memory ... @@ -75,8 +74,6 @@ BUILD_16_IRQS(0xc) BUILD_16_IRQS(0xd) BUILD_15_IRQS(0xe) #endif -#endif - #undef BUILD_16_IRQS #undef BUILD_15_IRQS #undef BI @@ -100,7 +97,6 @@ BUILD_16_IRQS(0xc) BUILD_16_IRQS(0xd) void (*interrupt[NR_IRQS])(void) = { IRQLIST_16(0x0), -#ifdef CONFIG_X86_IO_APIC IRQLIST_16(0x1), IRQLIST_16(0x2), IRQLIST_16(0x3), IRQLIST_16(0x4), IRQLIST_16(0x5), IRQLIST_16(0x6), IRQLIST_16(0x7), IRQLIST_16(0x8), IRQLIST_16(0x9), IRQLIST_16(0xa), IRQLIST_16(0xb), @@ -110,7 +106,6 @@ void (*interrupt[NR_IRQS])(void) = { , IRQLIST_15(0xe) #endif -#endif }; #undef IRQ @@ -453,9 +448,7 @@ void __init init_ISA_irqs (void) { int i; -#ifdef CONFIG_X86_LOCAL_APIC init_bsp_APIC(); -#endif init_8259A(0); for (i = 0; i < NR_IRQS; i++) { @@ -581,14 +574,12 @@ void __init init_IRQ(void) set_intr_gate(THERMAL_APIC_VECTOR, thermal_interrupt); set_intr_gate(THRESHOLD_APIC_VECTOR, threshold_interrupt); -#ifdef CONFIG_X86_LOCAL_APIC /* self generated IPI for local APIC timer */ set_intr_gate(LOCAL_TIMER_VECTOR, apic_timer_interrupt); /* IPI vectors for APIC spurious and error interrupts */ set_intr_gate(SPURIOUS_APIC_VECTOR, spurious_interrupt); set_intr_gate(ERROR_APIC_VECTOR, error_interrupt); -#endif /* * Set the clock to HZ Hz, we already have a valid diff --git a/arch/x86_64/kernel/irq.c b/arch/x86_64/kernel/irq.c index 5221a53e90c1..bfbcf92cfa4a 100644 --- a/arch/x86_64/kernel/irq.c +++ b/arch/x86_64/kernel/irq.c @@ -20,11 +20,9 @@ #include atomic_t irq_err_count; -#ifdef CONFIG_X86_IO_APIC #ifdef APIC_MISMATCH_DEBUG atomic_t irq_mis_count; #endif -#endif #ifdef CONFIG_DEBUG_STACKOVERFLOW /* @@ -92,17 +90,13 @@ skip: for_each_online_cpu(j) seq_printf(p, "%10u ", cpu_pda(j)->__nmi_count); seq_putc(p, '\n'); -#ifdef CONFIG_X86_LOCAL_APIC seq_printf(p, "LOC: "); for_each_online_cpu(j) seq_printf(p, "%10u ", cpu_pda(j)->apic_timer_irqs); seq_putc(p, '\n'); -#endif seq_printf(p, "ERR: %10u\n", atomic_read(&irq_err_count)); -#ifdef CONFIG_X86_IO_APIC #ifdef APIC_MISMATCH_DEBUG seq_printf(p, "MIS: %10u\n", atomic_read(&irq_mis_count)); -#endif #endif } return 0; diff --git a/arch/x86_64/kernel/mpparse.c b/arch/x86_64/kernel/mpparse.c index a1ab4197f8a1..c73dd1f41e65 100644 --- a/arch/x86_64/kernel/mpparse.c +++ b/arch/x86_64/kernel/mpparse.c @@ -74,14 +74,10 @@ physid_mask_t phys_cpu_present_map = PHYSID_MASK_NONE; /* ACPI MADT entry parsing functions */ #ifdef CONFIG_ACPI extern struct acpi_boot_flags acpi_boot; -#ifdef CONFIG_X86_LOCAL_APIC extern int acpi_parse_lapic (acpi_table_entry_header *header); extern int acpi_parse_lapic_addr_ovr (acpi_table_entry_header *header); extern int acpi_parse_lapic_nmi (acpi_table_entry_header *header); -#endif /*CONFIG_X86_LOCAL_APIC*/ -#ifdef CONFIG_X86_IO_APIC extern int acpi_parse_ioapic (acpi_table_entry_header *header); -#endif /*CONFIG_X86_IO_APIC*/ #endif /*CONFIG_ACPI*/ u8 bios_cpu_apicid[NR_CPUS] = { [0 ... NR_CPUS-1] = BAD_APICID }; @@ -661,9 +657,7 @@ void __init find_intel_smp (void) */ void __init find_smp_config (void) { -#ifdef CONFIG_X86_LOCAL_APIC find_intel_smp(); -#endif } @@ -717,8 +711,6 @@ void __cpuinit mp_register_lapic ( MP_processor_info(&processor); } -#ifdef CONFIG_X86_IO_APIC - #define MP_ISA_BUS 0 #define MP_MAX_IOAPIC_PIN 127 @@ -997,5 +989,4 @@ int mp_register_gsi(u32 gsi, int triggering, int polarity) return gsi; } -#endif /*CONFIG_X86_IO_APIC*/ #endif /*CONFIG_ACPI*/ diff --git a/arch/x86_64/kernel/setup.c b/arch/x86_64/kernel/setup.c index 34afad704824..fbe9f7faa2db 100644 --- a/arch/x86_64/kernel/setup.c +++ b/arch/x86_64/kernel/setup.c @@ -340,10 +340,8 @@ static __init void parse_cmdline_early (char ** cmdline_p) else if (fullarg(from, "acpi=strict")) { acpi_strict = 1; } -#ifdef CONFIG_X86_IO_APIC else if (fullarg(from, "acpi_skip_timer_override")) acpi_skip_timer_override = 1; -#endif #endif if (fullarg(from, "disable_timer_pin_1")) @@ -625,12 +623,10 @@ void __init setup_arch(char **cmdline_p) */ acpi_reserve_bootmem(); #endif -#ifdef CONFIG_X86_LOCAL_APIC /* * Find and reserve possible boot-time SMP configuration: */ find_smp_config(); -#endif #ifdef CONFIG_BLK_DEV_INITRD if (LOADER_TYPE && INITRD_START) { if (INITRD_START + INITRD_SIZE <= (end_pfn << PAGE_SHIFT)) { @@ -674,14 +670,12 @@ void __init setup_arch(char **cmdline_p) init_cpu_to_node(); -#ifdef CONFIG_X86_LOCAL_APIC /* * get boot-time SMP configuration: */ if (smp_found_config) get_smp_config(); init_apic_mappings(); -#endif /* * Request address space for all standard RAM and ROM resources diff --git a/arch/x86_64/kernel/smpboot.c b/arch/x86_64/kernel/smpboot.c index 582896f7d420..d29571e24953 100644 --- a/arch/x86_64/kernel/smpboot.c +++ b/arch/x86_64/kernel/smpboot.c @@ -1175,13 +1175,8 @@ int __cpuinit __cpu_up(unsigned int cpu) void __init smp_cpus_done(unsigned int max_cpus) { smp_cleanup_boot(); - -#ifdef CONFIG_X86_IO_APIC setup_ioapic_dest(); -#endif - check_nmi_watchdog(); - time_init_gtod(); } diff --git a/arch/x86_64/kernel/time.c b/arch/x86_64/kernel/time.c index ea00915d393a..d66c7f750e75 100644 --- a/arch/x86_64/kernel/time.c +++ b/arch/x86_64/kernel/time.c @@ -41,9 +41,7 @@ #include #include #include -#ifdef CONFIG_X86_LOCAL_APIC #include -#endif #ifdef CONFIG_CPU_FREQ static void cpufreq_delayed_get(void); @@ -438,12 +436,8 @@ void main_timer_handler(struct pt_regs *regs) * have to call the local interrupt handler. */ -#ifndef CONFIG_X86_LOCAL_APIC - profile_tick(CPU_PROFILING, regs); -#else if (!using_apic_timer) smp_local_timer_interrupt(regs); -#endif /* * If we have an externally synchronized Linux clock, then update CMOS clock @@ -467,10 +461,8 @@ static irqreturn_t timer_interrupt(int irq, void *dev_id, struct pt_regs *regs) if (apic_runs_main_timer > 1) return IRQ_HANDLED; main_timer_handler(regs); -#ifdef CONFIG_X86_LOCAL_APIC if (using_apic_timer) smp_send_timer_broadcast_ipi(); -#endif return IRQ_HANDLED; } diff --git a/arch/x86_64/kernel/traps.c b/arch/x86_64/kernel/traps.c index 96f62a033242..56d7ff0c894c 100644 --- a/arch/x86_64/kernel/traps.c +++ b/arch/x86_64/kernel/traps.c @@ -788,7 +788,6 @@ asmlinkage __kprobes void default_do_nmi(struct pt_regs *regs) if (notify_die(DIE_NMI_IPI, "nmi_ipi", regs, reason, 2, SIGINT) == NOTIFY_STOP) return; -#ifdef CONFIG_X86_LOCAL_APIC /* * Ok, so this is none of the documented NMI sources, * so it must be the NMI watchdog. @@ -796,7 +795,6 @@ asmlinkage __kprobes void default_do_nmi(struct pt_regs *regs) if (nmi_watchdog_tick(regs,reason)) return; if (!do_nmi_callback(regs,cpu)) -#endif unknown_nmi_error(reason, regs); return; diff --git a/include/asm-x86_64/apic.h b/include/asm-x86_64/apic.h index 9c96a0a8d1bd..8ed0f4d67b8d 100644 --- a/include/asm-x86_64/apic.h +++ b/include/asm-x86_64/apic.h @@ -29,8 +29,6 @@ extern int apic_runs_main_timer; printk(s, ##a); \ } while (0) -#ifdef CONFIG_X86_LOCAL_APIC - struct pt_regs; /* @@ -104,8 +102,6 @@ void switch_ipi_to_APIC_timer(void *cpumask); #define ARCH_APICTIMER_STOPS_ON_C3 1 -#endif /* CONFIG_X86_LOCAL_APIC */ - extern unsigned boot_cpu_id; #endif /* __ASM_APIC_H */ diff --git a/include/asm-x86_64/fixmap.h b/include/asm-x86_64/fixmap.h index 0b4ffbd1a125..1b620db5b9e3 100644 --- a/include/asm-x86_64/fixmap.h +++ b/include/asm-x86_64/fixmap.h @@ -37,13 +37,9 @@ enum fixed_addresses { VSYSCALL_FIRST_PAGE = VSYSCALL_LAST_PAGE + ((VSYSCALL_END-VSYSCALL_START) >> PAGE_SHIFT) - 1, VSYSCALL_HPET, FIX_HPET_BASE, -#ifdef CONFIG_X86_LOCAL_APIC FIX_APIC_BASE, /* local (CPU) APIC) -- required for SMP or not */ -#endif -#ifdef CONFIG_X86_IO_APIC FIX_IO_APIC_BASE_0, FIX_IO_APIC_BASE_END = FIX_IO_APIC_BASE_0 + MAX_IO_APICS-1, -#endif __end_of_fixed_addresses }; diff --git a/include/asm-x86_64/io_apic.h b/include/asm-x86_64/io_apic.h index fb7a0909a174..5d1b5c68e36e 100644 --- a/include/asm-x86_64/io_apic.h +++ b/include/asm-x86_64/io_apic.h @@ -10,8 +10,6 @@ * Copyright (C) 1997, 1998, 1999, 2000 Ingo Molnar */ -#ifdef CONFIG_X86_IO_APIC - #ifdef CONFIG_PCI_MSI static inline int use_pci_vector(void) {return 1;} static inline void disable_edge_ioapic_vector(unsigned int vector) { } @@ -209,10 +207,6 @@ extern int timer_uses_ioapic_pin_0; extern int sis_apic_bug; /* dummy */ -#else /* !CONFIG_X86_IO_APIC */ -#define io_apic_assign_pci_irqs 0 -#endif - extern int assign_irq_vector(int irq); void enable_NMI_through_LVT0 (void * dummy); diff --git a/include/asm-x86_64/irq.h b/include/asm-x86_64/irq.h index 9db5a1b4f7b1..43469d8ab71a 100644 --- a/include/asm-x86_64/irq.h +++ b/include/asm-x86_64/irq.h @@ -44,9 +44,7 @@ static __inline__ int irq_canonicalize(int irq) return ((irq == 2) ? 9 : irq); } -#ifdef CONFIG_X86_LOCAL_APIC #define ARCH_HAS_NMI_WATCHDOG /* See include/linux/nmi.h */ -#endif #ifdef CONFIG_HOTPLUG_CPU #include diff --git a/include/asm-x86_64/mpspec.h b/include/asm-x86_64/mpspec.h index 14fc3ddd9031..3c7aae9fd157 100644 --- a/include/asm-x86_64/mpspec.h +++ b/include/asm-x86_64/mpspec.h @@ -184,12 +184,10 @@ extern int pic_mode; extern void mp_register_lapic (u8 id, u8 enabled); extern void mp_register_lapic_address (u64 address); -#ifdef CONFIG_X86_IO_APIC extern void mp_register_ioapic (u8 id, u32 address, u32 gsi_base); extern void mp_override_legacy_irq (u8 bus_irq, u8 polarity, u8 trigger, u32 gsi); extern void mp_config_acpi_legacy_irqs (void); extern int mp_register_gsi (u32 gsi, int triggering, int polarity); -#endif /*CONFIG_X86_IO_APIC*/ #endif extern int using_apic_timer; diff --git a/include/asm-x86_64/smp.h b/include/asm-x86_64/smp.h index 612d208961a2..6353fa41bebe 100644 --- a/include/asm-x86_64/smp.h +++ b/include/asm-x86_64/smp.h @@ -9,15 +9,11 @@ #include extern int disable_apic; -#ifdef CONFIG_X86_LOCAL_APIC #include #include -#ifdef CONFIG_X86_IO_APIC #include -#endif #include #include -#endif #ifdef CONFIG_SMP -- cgit v1.2.3 From b1c78c0fcc29097567e1afc39701012e6d89adb7 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Tue, 26 Sep 2006 10:52:29 +0200 Subject: [PATCH] Clean up and minor fixes to TLB flush - Convert CR* accesses to dedicated inline functions and rewrite the rest as C inlines - Don't do a double flush for global flushes (pointed out by Zach Amsden) This was a bug workaround for old CPUs that don't do 64bit and is obsolete. - Add a proper memory clobber to invlpg - Remove an unused extern Signed-off-by: Andi Kleen --- include/asm-x86_64/pgtable.h | 2 -- include/asm-x86_64/tlbflush.h | 70 +++++++++++++++++++++---------------------- 2 files changed, 35 insertions(+), 37 deletions(-) (limited to 'include') diff --git a/include/asm-x86_64/pgtable.h b/include/asm-x86_64/pgtable.h index a31ab4e68a9b..0c1e2422400a 100644 --- a/include/asm-x86_64/pgtable.h +++ b/include/asm-x86_64/pgtable.h @@ -25,8 +25,6 @@ extern int nonx_setup(char *str); extern void paging_init(void); extern void clear_kernel_mapping(unsigned long addr, unsigned long size); -extern unsigned long pgkern_mask; - /* * ZERO_PAGE is a global shared page that is always zero: used * for zero-mapped memory areas etc.. diff --git a/include/asm-x86_64/tlbflush.h b/include/asm-x86_64/tlbflush.h index d16d5b60f419..983bd296c81a 100644 --- a/include/asm-x86_64/tlbflush.h +++ b/include/asm-x86_64/tlbflush.h @@ -4,44 +4,44 @@ #include #include -#define __flush_tlb() \ - do { \ - unsigned long tmpreg; \ - \ - __asm__ __volatile__( \ - "movq %%cr3, %0; # flush TLB \n" \ - "movq %0, %%cr3; \n" \ - : "=r" (tmpreg) \ - :: "memory"); \ - } while (0) +static inline unsigned long get_cr3(void) +{ + unsigned long cr3; + asm volatile("mov %%cr3,%0" : "=r" (cr3)); + return cr3; +} -/* - * Global pages have to be flushed a bit differently. Not a real - * performance problem because this does not happen often. - */ -#define __flush_tlb_global() \ - do { \ - unsigned long tmpreg, cr4, cr4_orig; \ - \ - __asm__ __volatile__( \ - "movq %%cr4, %2; # turn off PGE \n" \ - "movq %2, %1; \n" \ - "andq %3, %1; \n" \ - "movq %1, %%cr4; \n" \ - "movq %%cr3, %0; # flush TLB \n" \ - "movq %0, %%cr3; \n" \ - "movq %2, %%cr4; # turn PGE back on \n" \ - : "=&r" (tmpreg), "=&r" (cr4), "=&r" (cr4_orig) \ - : "i" (~X86_CR4_PGE) \ - : "memory"); \ - } while (0) - -extern unsigned long pgkern_mask; - -#define __flush_tlb_all() __flush_tlb_global() +static inline void set_cr3(unsigned long cr3) +{ + asm volatile("mov %0,%%cr3" :: "r" (cr3) : "memory"); +} + +static inline void __flush_tlb(void) +{ + set_cr3(get_cr3()); +} + +static inline unsigned long get_cr4(void) +{ + unsigned long cr4; + asm volatile("mov %%cr4,%0" : "=r" (cr4)); + return cr4; +} + +static inline void set_cr4(unsigned long cr4) +{ + asm volatile("mov %0,%%cr4" :: "r" (cr4) : "memory"); +} + +static inline void __flush_tlb_all(void) +{ + unsigned long cr4 = get_cr4(); + set_cr4(cr4 & ~X86_CR4_PGE); /* clear PGE */ + set_cr4(cr4); /* write old PGE again and flush TLBs */ +} #define __flush_tlb_one(addr) \ - __asm__ __volatile__("invlpg %0": :"m" (*(char *) addr)) + __asm__ __volatile__("invlpg (%0)" :: "r" (addr) : "memory") /* -- cgit v1.2.3 From 107878bb14b1fb6bddc646f4d5e72e8beaa2f6a2 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Tue, 26 Sep 2006 10:52:29 +0200 Subject: [PATCH] i386: Minor fixes & cleanup to tlb flush (based on x86-64 changes) - Add a proper memory clobber to invlpg - Remove an unused extern Signed-off-by: Andi Kleen --- include/asm-i386/tlbflush.h | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) (limited to 'include') diff --git a/include/asm-i386/tlbflush.h b/include/asm-i386/tlbflush.h index d57ca5c540b6..360648b0f2b3 100644 --- a/include/asm-i386/tlbflush.h +++ b/include/asm-i386/tlbflush.h @@ -36,8 +36,6 @@ : "memory"); \ } while (0) -extern unsigned long pgkern_mask; - # define __flush_tlb_all() \ do { \ if (cpu_has_pge) \ @@ -49,7 +47,7 @@ extern unsigned long pgkern_mask; #define cpu_has_invlpg (boot_cpu_data.x86 > 3) #define __flush_tlb_single(addr) \ - __asm__ __volatile__("invlpg %0": :"m" (*(char *) addr)) + __asm__ __volatile__("invlpg (%0)" ::"r" (addr) : "memory") #ifdef CONFIG_X86_INVLPG # define __flush_tlb_one(addr) __flush_tlb_single(addr) -- cgit v1.2.3 From a8fcf1a24a16e1c735c795d99773b5dcefb71518 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Tue, 26 Sep 2006 10:52:30 +0200 Subject: [PATCH] Remove obsolete PIC mode PIC mode is an outdated way to drive the APICs that was used on some early MP boards. It is not supported in the ACPI model. It is unlikely to be ever configured by any x86-64 system Remove it thus. Signed-off-by: Andi Kleen --- arch/x86_64/kernel/apic.c | 92 ++++++++++++++------------------------------ arch/x86_64/kernel/mpparse.c | 8 ---- arch/x86_64/kernel/smpboot.c | 1 - include/asm-x86_64/mpspec.h | 1 - include/asm-x86_64/smp.h | 1 - 5 files changed, 29 insertions(+), 74 deletions(-) (limited to 'include') diff --git a/arch/x86_64/kernel/apic.c b/arch/x86_64/kernel/apic.c index 78c43b1a3064..20a76f209629 100644 --- a/arch/x86_64/kernel/apic.c +++ b/arch/x86_64/kernel/apic.c @@ -136,72 +136,40 @@ void clear_local_APIC(void) apic_read(APIC_ESR); } -void __init connect_bsp_APIC(void) -{ - if (pic_mode) { - /* - * Do not trust the local APIC being empty at bootup. - */ - clear_local_APIC(); - /* - * PIC mode, enable APIC mode in the IMCR, i.e. - * connect BSP's local APIC to INT and NMI lines. - */ - apic_printk(APIC_VERBOSE, "leaving PIC mode, enabling APIC mode.\n"); - outb(0x70, 0x22); - outb(0x01, 0x23); - } -} - void disconnect_bsp_APIC(int virt_wire_setup) { - if (pic_mode) { - /* - * Put the board back into PIC mode (has an effect - * only on certain older boards). Note that APIC - * interrupts, including IPIs, won't work beyond - * this point! The only exception are INIT IPIs. - */ - apic_printk(APIC_QUIET, "disabling APIC mode, entering PIC mode.\n"); - outb(0x70, 0x22); - outb(0x00, 0x23); - } - else { - /* Go back to Virtual Wire compatibility mode */ - unsigned long value; - - /* For the spurious interrupt use vector F, and enable it */ - value = apic_read(APIC_SPIV); - value &= ~APIC_VECTOR_MASK; - value |= APIC_SPIV_APIC_ENABLED; - value |= 0xf; - apic_write(APIC_SPIV, value); - - if (!virt_wire_setup) { - /* For LVT0 make it edge triggered, active high, external and enabled */ - value = apic_read(APIC_LVT0); - value &= ~(APIC_MODE_MASK | APIC_SEND_PENDING | - APIC_INPUT_POLARITY | APIC_LVT_REMOTE_IRR | - 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(APIC_LVT0, value); - } - else { - /* Disable LVT0 */ - apic_write(APIC_LVT0, APIC_LVT_MASKED); - } + /* Go back to Virtual Wire compatibility mode */ + unsigned long value; - /* For LVT1 make it edge triggered, active high, nmi and enabled */ - value = apic_read(APIC_LVT1); - value &= ~( - APIC_MODE_MASK | APIC_SEND_PENDING | + /* For the spurious interrupt use vector F, and enable it */ + value = apic_read(APIC_SPIV); + value &= ~APIC_VECTOR_MASK; + value |= APIC_SPIV_APIC_ENABLED; + value |= 0xf; + apic_write(APIC_SPIV, value); + + if (!virt_wire_setup) { + /* For LVT0 make it edge triggered, active high, external and enabled */ + value = apic_read(APIC_LVT0); + value &= ~(APIC_MODE_MASK | APIC_SEND_PENDING | APIC_INPUT_POLARITY | APIC_LVT_REMOTE_IRR | - APIC_LVT_LEVEL_TRIGGER | APIC_LVT_MASKED); + 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(APIC_LVT1, value); + value = SET_APIC_DELIVERY_MODE(value, APIC_MODE_EXTINT); + apic_write(APIC_LVT0, value); + } else { + /* Disable LVT0 */ + apic_write(APIC_LVT0, APIC_LVT_MASKED); } + + /* For LVT1 make it edge triggered, active high, nmi and enabled */ + value = apic_read(APIC_LVT1); + value &= ~(APIC_MODE_MASK | APIC_SEND_PENDING | + APIC_INPUT_POLARITY | APIC_LVT_REMOTE_IRR | + 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(APIC_LVT1, value); } void disable_local_APIC(void) @@ -418,7 +386,7 @@ void __cpuinit setup_local_APIC (void) * TODO: set up through-local-APIC from through-I/O-APIC? --macro */ value = apic_read(APIC_LVT0) & APIC_LVT_MASKED; - if (!smp_processor_id() && (pic_mode || !value)) { + if (!smp_processor_id() && !value) { value = APIC_DM_EXTINT; apic_printk(APIC_VERBOSE, "enabled ExtINT on CPU#%d\n", smp_processor_id()); } else { @@ -1096,8 +1064,6 @@ int __init APIC_init_uniprocessor (void) verify_local_APIC(); - connect_bsp_APIC(); - phys_cpu_present_map = physid_mask_of_physid(boot_cpu_id); apic_write(APIC_ID, SET_APIC_ID(boot_cpu_id)); diff --git a/arch/x86_64/kernel/mpparse.c b/arch/x86_64/kernel/mpparse.c index 90e99cf27aa5..022624503552 100644 --- a/arch/x86_64/kernel/mpparse.c +++ b/arch/x86_64/kernel/mpparse.c @@ -56,7 +56,6 @@ struct mpc_config_intsrc mp_irqs[MAX_IRQ_SOURCES]; int mp_irq_entries; int nr_ioapics; -int pic_mode; unsigned long mp_lapic_addr = 0; @@ -514,13 +513,6 @@ void __init get_smp_config (void) printk(KERN_INFO "Using ACPI for processor (LAPIC) configuration information\n"); printk("Intel MultiProcessor Specification v1.%d\n", mpf->mpf_specification); - if (mpf->mpf_feature2 & (1<<7)) { - printk(KERN_INFO " IMCR and PIC compatibility mode.\n"); - pic_mode = 1; - } else { - printk(KERN_INFO " Virtual Wire compatibility mode.\n"); - pic_mode = 0; - } /* * Now see if we need to read further. diff --git a/arch/x86_64/kernel/smpboot.c b/arch/x86_64/kernel/smpboot.c index d29571e24953..ae7d6d84e352 100644 --- a/arch/x86_64/kernel/smpboot.c +++ b/arch/x86_64/kernel/smpboot.c @@ -1090,7 +1090,6 @@ void __init smp_prepare_cpus(unsigned int max_cpus) /* * Switch from PIC to APIC mode. */ - connect_bsp_APIC(); setup_local_APIC(); if (GET_APIC_ID(apic_read(APIC_ID)) != boot_cpu_id) { diff --git a/include/asm-x86_64/mpspec.h b/include/asm-x86_64/mpspec.h index 3c7aae9fd157..1dc83436cc91 100644 --- a/include/asm-x86_64/mpspec.h +++ b/include/asm-x86_64/mpspec.h @@ -178,7 +178,6 @@ extern int mp_irq_entries; extern struct mpc_config_intsrc mp_irqs [MAX_IRQ_SOURCES]; extern int mpc_default_type; extern unsigned long mp_lapic_addr; -extern int pic_mode; #ifdef CONFIG_ACPI extern void mp_register_lapic (u8 id, u8 enabled); diff --git a/include/asm-x86_64/smp.h b/include/asm-x86_64/smp.h index 6353fa41bebe..498fbc1fc179 100644 --- a/include/asm-x86_64/smp.h +++ b/include/asm-x86_64/smp.h @@ -33,7 +33,6 @@ extern cpumask_t cpu_initialized; extern void smp_alloc_memory(void); extern volatile unsigned long smp_invalidate_needed; -extern int pic_mode; extern void lock_ipi_call_lock(void); extern void unlock_ipi_call_lock(void); extern int smp_num_siblings; -- cgit v1.2.3 From dfa4698c50bf85b7927214b0e4a3dc4bc3b3c4a9 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Tue, 26 Sep 2006 10:52:30 +0200 Subject: [PATCH] Move early chipset quirks out to new file They did not really belong into io_apic.c. Move them into a new file and clean it up a bit. Also remove outdated ATI quirk that was obsolete, Signed-off-by: Andi Kleen --- arch/x86_64/kernel/Makefile | 2 +- arch/x86_64/kernel/early-quirks.c | 118 ++++++++++++++++++++++++++++++++++++++ arch/x86_64/kernel/io_apic.c | 101 -------------------------------- arch/x86_64/kernel/setup.c | 2 +- include/asm-x86_64/proto.h | 2 +- 5 files changed, 121 insertions(+), 104 deletions(-) create mode 100644 arch/x86_64/kernel/early-quirks.c (limited to 'include') diff --git a/arch/x86_64/kernel/Makefile b/arch/x86_64/kernel/Makefile index 0ef39553c0f6..000e67e8f028 100644 --- a/arch/x86_64/kernel/Makefile +++ b/arch/x86_64/kernel/Makefile @@ -8,7 +8,7 @@ obj-y := process.o signal.o entry.o traps.o irq.o \ ptrace.o time.o ioport.o ldt.o setup.o i8259.o sys_x86_64.o \ x8664_ksyms.o i387.o syscall.o vsyscall.o \ setup64.o bootflag.o e820.o reboot.o quirks.o i8237.o \ - pci-dma.o pci-nommu.o alternative.o + pci-dma.o pci-nommu.o alternative.o early-quirks.o obj-$(CONFIG_STACKTRACE) += stacktrace.o obj-$(CONFIG_X86_MCE) += mce.o diff --git a/arch/x86_64/kernel/early-quirks.c b/arch/x86_64/kernel/early-quirks.c new file mode 100644 index 000000000000..d637cff1c4b1 --- /dev/null +++ b/arch/x86_64/kernel/early-quirks.c @@ -0,0 +1,118 @@ +/* Various workarounds for chipset bugs. + This code runs very early and can't use the regular PCI subsystem + The entries are keyed to PCI bridges which usually identify chipsets + uniquely. + This is only for whole classes of chipsets with specific problems which + need early invasive action (e.g. before the timers are initialized). + Most PCI device specific workarounds can be done later and should be + in standard PCI quirks + Mainboard specific bugs should be handled by DMI entries. + CPU specific bugs in setup.c */ + +#include +#include +#include +#include +#include +#include + +static void via_bugs(void) +{ +#ifdef CONFIG_IOMMU + if ((end_pfn > MAX_DMA32_PFN || force_iommu) && + !iommu_aperture_allowed) { + printk(KERN_INFO + "Looks like a VIA chipset. Disabling IOMMU. Override with iommu=allowed\n"); + iommu_aperture_disabled = 1; + } +#endif +} + +#ifdef CONFIG_ACPI + +static int nvidia_hpet_detected __initdata; + +static int __init nvidia_hpet_check(unsigned long phys, unsigned long size) +{ + nvidia_hpet_detected = 1; + return 0; +} +#endif + +static void nvidia_bugs(void) +{ +#ifdef CONFIG_ACPI + /* + * All timer overrides on Nvidia are + * wrong unless HPET is enabled. + */ + nvidia_hpet_detected = 0; + acpi_table_parse(ACPI_HPET, nvidia_hpet_check); + if (nvidia_hpet_detected == 0) { + acpi_skip_timer_override = 1; + printk(KERN_INFO "Nvidia board " + "detected. Ignoring ACPI " + "timer override.\n"); + } +#endif + /* RED-PEN skip them on mptables too? */ + +} + +static void ati_bugs(void) +{ +#if 1 /* for testing */ + printk("ATI board detected\n"); +#endif + /* No bugs right now */ +} + +struct chipset { + u16 vendor; + void (*f)(void); +}; + +static struct chipset early_qrk[] = { + { PCI_VENDOR_ID_NVIDIA, nvidia_bugs }, + { PCI_VENDOR_ID_VIA, via_bugs }, + { PCI_VENDOR_ID_ATI, ati_bugs }, + {} +}; + +void __init early_quirks(void) +{ + int num, slot, func; + /* Poor man's PCI discovery */ + for (num = 0; num < 32; num++) { + for (slot = 0; slot < 32; slot++) { + for (func = 0; func < 8; func++) { + u32 class; + u32 vendor; + u8 type; + int i; + class = read_pci_config(num,slot,func, + PCI_CLASS_REVISION); + if (class == 0xffffffff) + break; + + if ((class >> 16) != PCI_CLASS_BRIDGE_PCI) + continue; + + vendor = read_pci_config(num, slot, func, + PCI_VENDOR_ID); + vendor &= 0xffff; + + for (i = 0; early_qrk[i].f; i++) + if (early_qrk[i].vendor == vendor) { + early_qrk[i].f(); + return; + } + + type = read_pci_config_byte(num, slot, func, + PCI_HEADER_TYPE); + if (!(type & 0x80)) + break; + } + } + } +} diff --git a/arch/x86_64/kernel/io_apic.c b/arch/x86_64/kernel/io_apic.c index a02ed17d05dc..8bbff64c20d7 100644 --- a/arch/x86_64/kernel/io_apic.c +++ b/arch/x86_64/kernel/io_apic.c @@ -280,107 +280,6 @@ static int __init setup_enable_8254_timer(char *s) __setup("disable_8254_timer", setup_disable_8254_timer); __setup("enable_8254_timer", setup_enable_8254_timer); -#include -#include -#include - - -#ifdef CONFIG_ACPI - -static int nvidia_hpet_detected __initdata; - -static int __init nvidia_hpet_check(unsigned long phys, unsigned long size) -{ - nvidia_hpet_detected = 1; - return 0; -} -#endif - -/* Temporary Hack. Nvidia and VIA boards currently only work with IO-APIC - off. Check for an Nvidia or VIA PCI bridge and turn it off. - Use pci direct infrastructure because this runs before the PCI subsystem. - - Can be overwritten with "apic" - - And another hack to disable the IOMMU on VIA chipsets. - - ... and others. Really should move this somewhere else. - - Kludge-O-Rama. */ -void __init check_ioapic(void) -{ - int num,slot,func; - /* Poor man's PCI discovery */ - for (num = 0; num < 32; num++) { - for (slot = 0; slot < 32; slot++) { - for (func = 0; func < 8; func++) { - u32 class; - u32 vendor; - u8 type; - class = read_pci_config(num,slot,func, - PCI_CLASS_REVISION); - if (class == 0xffffffff) - break; - - if ((class >> 16) != PCI_CLASS_BRIDGE_PCI) - continue; - - vendor = read_pci_config(num, slot, func, - PCI_VENDOR_ID); - vendor &= 0xffff; - switch (vendor) { - case PCI_VENDOR_ID_VIA: -#ifdef CONFIG_IOMMU - if ((end_pfn > MAX_DMA32_PFN || - force_iommu) && - !iommu_aperture_allowed) { - printk(KERN_INFO - "Looks like a VIA chipset. Disabling IOMMU. Override with \"iommu=allowed\"\n"); - iommu_aperture_disabled = 1; - } -#endif - return; - case PCI_VENDOR_ID_NVIDIA: -#ifdef CONFIG_ACPI - /* - * All timer overrides on Nvidia are - * wrong unless HPET is enabled. - */ - nvidia_hpet_detected = 0; - acpi_table_parse(ACPI_HPET, - nvidia_hpet_check); - if (nvidia_hpet_detected == 0) { - acpi_skip_timer_override = 1; - printk(KERN_INFO "Nvidia board " - "detected. Ignoring ACPI " - "timer override.\n"); - } -#endif - /* RED-PEN skip them on mptables too? */ - return; - - /* This should be actually default, but - for 2.6.16 let's do it for ATI only where - it's really needed. */ - case PCI_VENDOR_ID_ATI: - if (timer_over_8254 == 1) { - timer_over_8254 = 0; - printk(KERN_INFO - "ATI board detected. Disabling timer routing over 8254.\n"); - } - return; - } - - - /* No multi-function device? */ - type = read_pci_config_byte(num,slot,func, - PCI_HEADER_TYPE); - if (!(type & 0x80)) - break; - } - } - } -} /* * Find the IRQ entry number of a certain pin. diff --git a/arch/x86_64/kernel/setup.c b/arch/x86_64/kernel/setup.c index fbe9f7faa2db..aab4bd66aa0d 100644 --- a/arch/x86_64/kernel/setup.c +++ b/arch/x86_64/kernel/setup.c @@ -653,7 +653,7 @@ void __init setup_arch(char **cmdline_p) paging_init(); - check_ioapic(); + early_quirks(); /* * set this early, so we dont allocate cpu0 diff --git a/include/asm-x86_64/proto.h b/include/asm-x86_64/proto.h index 3b1c60247902..58fec91318e4 100644 --- a/include/asm-x86_64/proto.h +++ b/include/asm-x86_64/proto.h @@ -92,7 +92,7 @@ extern void syscall32_cpu_init(void); extern void setup_node_bootmem(int nodeid, unsigned long start, unsigned long end); -extern void check_ioapic(void); +extern void early_quirks(void); extern void check_efer(void); extern int unhandled_signal(struct task_struct *tsk, int sig); -- cgit v1.2.3 From 55f05ffaa788e039df2f1ebe0d7bfbcb6f39d0b4 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Tue, 26 Sep 2006 10:52:30 +0200 Subject: [PATCH] Replace mp bus array with bitmap for bus not pci Since we only support PCI and ISA legacy busses now there is no need to have an full array with checking. Signed-off-by: Andi Kleen --- arch/x86_64/kernel/io_apic.c | 92 +++++++++++--------------------------------- arch/x86_64/kernel/mpparse.c | 9 ++--- include/asm-x86_64/mpspec.h | 8 +--- 3 files changed, 27 insertions(+), 82 deletions(-) (limited to 'include') diff --git a/arch/x86_64/kernel/io_apic.c b/arch/x86_64/kernel/io_apic.c index 8bbff64c20d7..a1412042b918 100644 --- a/arch/x86_64/kernel/io_apic.c +++ b/arch/x86_64/kernel/io_apic.c @@ -308,7 +308,7 @@ static int __init find_isa_irq_pin(int irq, int type) for (i = 0; i < mp_irq_entries; i++) { int lbus = mp_irqs[i].mpc_srcbus; - if (mp_bus_id_to_type[lbus] == MP_BUS_ISA && + if (test_bit(lbus, mp_bus_not_pci) && (mp_irqs[i].mpc_irqtype == type) && (mp_irqs[i].mpc_srcbusirq == irq)) @@ -324,7 +324,7 @@ static int __init find_isa_irq_apic(int irq, int type) for (i = 0; i < mp_irq_entries; i++) { int lbus = mp_irqs[i].mpc_srcbus; - if ((mp_bus_id_to_type[lbus] == MP_BUS_ISA) && + if (test_bit(lbus, mp_bus_not_pci) && (mp_irqs[i].mpc_irqtype == type) && (mp_irqs[i].mpc_srcbusirq == irq)) break; @@ -364,7 +364,7 @@ int IO_APIC_get_PCI_irq_vector(int bus, int slot, int pin) mp_irqs[i].mpc_dstapic == MP_APIC_ALL) break; - if ((mp_bus_id_to_type[lbus] == MP_BUS_PCI) && + if (!test_bit(lbus, mp_bus_not_pci) && !mp_irqs[i].mpc_irqtype && (bus == lbus) && (slot == ((mp_irqs[i].mpc_srcbusirq >> 2) & 0x1f))) { @@ -410,28 +410,11 @@ static int __init MPBIOS_polarity(int idx) switch (mp_irqs[idx].mpc_irqflag & 3) { case 0: /* conforms, ie. bus-type dependent polarity */ - { - switch (mp_bus_id_to_type[bus]) - { - case MP_BUS_ISA: /* ISA pin */ - { - polarity = default_ISA_polarity(idx); - break; - } - case MP_BUS_PCI: /* PCI pin */ - { - polarity = default_PCI_polarity(idx); - break; - } - default: - { - printk(KERN_WARNING "broken BIOS!!\n"); - polarity = 1; - break; - } - } + if (test_bit(bus, mp_bus_not_pci)) + polarity = default_ISA_polarity(idx); + else + polarity = default_PCI_polarity(idx); break; - } case 1: /* high active */ { polarity = 0; @@ -469,28 +452,11 @@ static int MPBIOS_trigger(int idx) switch ((mp_irqs[idx].mpc_irqflag>>2) & 3) { case 0: /* conforms, ie. bus-type dependent */ - { - switch (mp_bus_id_to_type[bus]) - { - case MP_BUS_ISA: /* ISA pin */ - { - trigger = default_ISA_trigger(idx); - break; - } - case MP_BUS_PCI: /* PCI pin */ - { - trigger = default_PCI_trigger(idx); - break; - } - default: - { - printk(KERN_WARNING "broken BIOS!!\n"); - trigger = 1; - break; - } - } + if (test_bit(bus, mp_bus_not_pci)) + trigger = default_ISA_trigger(idx); + else + trigger = default_PCI_trigger(idx); break; - } case 1: /* edge */ { trigger = 0; @@ -596,31 +562,17 @@ static int pin_2_irq(int idx, int apic, int pin) if (mp_irqs[idx].mpc_dstirq != pin) printk(KERN_ERR "broken BIOS or MPTABLE parser, ayiee!!\n"); - switch (mp_bus_id_to_type[bus]) - { - case MP_BUS_ISA: /* ISA pin */ - { - irq = mp_irqs[idx].mpc_srcbusirq; - break; - } - case MP_BUS_PCI: /* PCI pin */ - { - /* - * PCI IRQs are mapped in order - */ - i = irq = 0; - while (i < apic) - irq += nr_ioapic_registers[i++]; - irq += pin; - irq = gsi_irq_sharing(irq); - break; - } - default: - { - printk(KERN_ERR "unknown bus type %d.\n",bus); - irq = 0; - break; - } + if (test_bit(bus, mp_bus_not_pci)) { + irq = mp_irqs[idx].mpc_srcbusirq; + } else { + /* + * PCI IRQs are mapped in order + */ + i = irq = 0; + while (i < apic) + irq += nr_ioapic_registers[i++]; + irq += pin; + irq = gsi_irq_sharing(irq); } BUG_ON(irq >= NR_IRQS); return irq; diff --git a/arch/x86_64/kernel/mpparse.c b/arch/x86_64/kernel/mpparse.c index c12acc3b5552..a8d38c0bb449 100644 --- a/arch/x86_64/kernel/mpparse.c +++ b/arch/x86_64/kernel/mpparse.c @@ -42,7 +42,7 @@ int acpi_found_madt; * MP-table. */ unsigned char apic_version [MAX_APICS]; -unsigned char mp_bus_id_to_type [MAX_MP_BUSSES] = { [0 ... MAX_MP_BUSSES-1] = -1 }; +DECLARE_BITMAP(mp_bus_not_pci, MAX_MP_BUSSES); int mp_bus_id_to_pci_bus [MAX_MP_BUSSES] = { [0 ... MAX_MP_BUSSES-1] = -1 }; static int mp_current_pci_id = 0; @@ -173,9 +173,9 @@ static void __init MP_bus_info (struct mpc_config_bus *m) Dprintk("Bus #%d is %s\n", m->mpc_busid, str); if (strncmp(str, "ISA", 3) == 0) { - mp_bus_id_to_type[m->mpc_busid] = MP_BUS_ISA; + set_bit(m->mpc_busid, mp_bus_not_pci); } else if (strncmp(str, "PCI", 3) == 0) { - mp_bus_id_to_type[m->mpc_busid] = MP_BUS_PCI; + clear_bit(m->mpc_busid, mp_bus_not_pci); mp_bus_id_to_pci_bus[m->mpc_busid] = mp_current_pci_id; mp_current_pci_id++; } else { @@ -808,8 +808,7 @@ void __init mp_config_acpi_legacy_irqs (void) /* * Fabricate the legacy ISA bus (bus #31). */ - mp_bus_id_to_type[MP_ISA_BUS] = MP_BUS_ISA; - Dprintk("Bus #%d is ISA\n", MP_ISA_BUS); + set_bit(MP_ISA_BUS, mp_bus_not_pci); /* * Locate the IOAPIC that manages the ISA IRQs (0-15). diff --git a/include/asm-x86_64/mpspec.h b/include/asm-x86_64/mpspec.h index 1dc83436cc91..017fddb61dc5 100644 --- a/include/asm-x86_64/mpspec.h +++ b/include/asm-x86_64/mpspec.h @@ -159,13 +159,7 @@ struct mpc_config_lintsrc #define MAX_MP_BUSSES 256 /* Each PCI slot may be a combo card with its own bus. 4 IRQ pins per slot. */ #define MAX_IRQ_SOURCES (MAX_MP_BUSSES * 4) -enum mp_bustype { - MP_BUS_ISA = 1, - MP_BUS_EISA, - MP_BUS_PCI, - MP_BUS_MCA -}; -extern unsigned char mp_bus_id_to_type [MAX_MP_BUSSES]; +extern DECLARE_BITMAP(mp_bus_not_pci, MAX_MP_BUSSES); extern int mp_bus_id_to_pci_bus [MAX_MP_BUSSES]; extern unsigned int boot_cpu_physical_apicid; -- cgit v1.2.3 From e2414910f212c52d9d7c64c99a22863488ac5b48 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Tue, 26 Sep 2006 10:52:30 +0200 Subject: [PATCH] x86: Detect CFI support in the assembler at runtime ... instead of using a CONFIG option. The config option still controls if the resulting executable actually has unwind information. This is useful to prevent compilation errors when users select CONFIG_STACK_UNWIND on old binutils and also allows to use CFI in the future for non kernel debugging applications. Cc: jbeulich@novell.com Cc: sam@ravnborg.org Signed-off-by: Andi Kleen --- Documentation/kbuild/makefiles.txt | 5 +++++ arch/i386/Makefile | 4 ++++ arch/x86_64/Makefile | 3 +++ include/asm-x86_64/dwarf2.h | 2 +- scripts/Kbuild.include | 7 +++++++ 5 files changed, 20 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/Documentation/kbuild/makefiles.txt b/Documentation/kbuild/makefiles.txt index b7d6abb501a6..e2cbd59cf2d0 100644 --- a/Documentation/kbuild/makefiles.txt +++ b/Documentation/kbuild/makefiles.txt @@ -421,6 +421,11 @@ more details, with real examples. The second argument is optional, and if supplied will be used if first argument is not supported. + as-instr + as-instr checks if the assembler reports a specific instruction + and then outputs either option1 or option2 + C escapes are supported in the test instruction + cc-option cc-option is used to check if $(CC) supports a given option, and not supported to use an optional second option. diff --git a/arch/i386/Makefile b/arch/i386/Makefile index 3e4adb1e2244..508cdbeb3a09 100644 --- a/arch/i386/Makefile +++ b/arch/i386/Makefile @@ -46,6 +46,10 @@ cflags-y += -ffreestanding # a lot more stack due to the lack of sharing of stacklots: CFLAGS += $(shell if [ $(call cc-version) -lt 0400 ] ; then echo $(call cc-option,-fno-unit-at-a-time); fi ;) +# do binutils support CFI? +cflags-y += $(call as-instr,.cfi_startproc\n.cfi_endproc,-DCONFIG_AS_CFI=1,) +AFLAGS += $(call as-instr,.cfi_startproc\n.cfi_endproc,-DCONFIG_AS_CFI=1,) + CFLAGS += $(cflags-y) # Default subarch .c files diff --git a/arch/x86_64/Makefile b/arch/x86_64/Makefile index 431bb4bc36cd..d6472ddf5f6e 100644 --- a/arch/x86_64/Makefile +++ b/arch/x86_64/Makefile @@ -54,6 +54,9 @@ endif cflags-y += $(call cc-option,-funit-at-a-time) # prevent gcc from generating any FP code by mistake cflags-y += $(call cc-option,-mno-sse -mno-mmx -mno-sse2 -mno-3dnow,) +# do binutils support CFI? +cflags-y += $(call as-instr,.cfi_startproc\n.cfi_endproc,-DCONFIG_AS_CFI=1,) +AFLAGS += $(call as-instr,.cfi_startproc\n.cfi_endproc,-DCONFIG_AS_CFI=1,) CFLAGS += $(cflags-y) CFLAGS_KERNEL += $(cflags-kernel-y) diff --git a/include/asm-x86_64/dwarf2.h b/include/asm-x86_64/dwarf2.h index 0744db777676..2b9368365fad 100644 --- a/include/asm-x86_64/dwarf2.h +++ b/include/asm-x86_64/dwarf2.h @@ -13,7 +13,7 @@ away for older version. */ -#ifdef CONFIG_UNWIND_INFO +#ifdef CONFIG_AS_CFI #define CFI_STARTPROC .cfi_startproc #define CFI_ENDPROC .cfi_endproc diff --git a/scripts/Kbuild.include b/scripts/Kbuild.include index 3d523899fdc0..7adef12a0c26 100644 --- a/scripts/Kbuild.include +++ b/scripts/Kbuild.include @@ -63,6 +63,13 @@ as-option = $(shell if $(CC) $(CFLAGS) $(1) -Wa,-Z -c -o /dev/null \ -xassembler /dev/null > /dev/null 2>&1; then echo "$(1)"; \ else echo "$(2)"; fi ;) +# as-instr +# Usage: cflags-y += $(call as-instr, instr, option1, option2) + +as-instr = $(shell if echo -e "$(1)" | $(AS) -Z -o astest$$$$.out \ + 2>&1 >/dev/null ; then echo "$(2)"; else echo "$(3)"; fi; \ + rm -f astest$$$$.out) + # cc-option # Usage: cflags-y += $(call cc-option, -march=winchip-c6, -march=i586) -- cgit v1.2.3 From 3b94355c47e2b025a7ececa0a14180e8fce6b0f1 Mon Sep 17 00:00:00 2001 From: Jan Beulich Date: Tue, 26 Sep 2006 10:52:31 +0200 Subject: [PATCH] remove int_delivery_dest The genapic field and the accessor macro weren't used anywhere. Signed-off-by: Jan Beulich Signed-off-by: Andi Kleen --- arch/x86_64/kernel/genapic_cluster.c | 1 - arch/x86_64/kernel/genapic_flat.c | 2 -- include/asm-x86_64/genapic.h | 1 - include/asm-x86_64/mach_apic.h | 1 - 4 files changed, 5 deletions(-) (limited to 'include') diff --git a/arch/x86_64/kernel/genapic_cluster.c b/arch/x86_64/kernel/genapic_cluster.c index 3020917546de..cdb90e671b88 100644 --- a/arch/x86_64/kernel/genapic_cluster.c +++ b/arch/x86_64/kernel/genapic_cluster.c @@ -118,7 +118,6 @@ struct genapic apic_cluster = { .name = "clustered", .int_delivery_mode = dest_Fixed, .int_dest_mode = (APIC_DEST_PHYSICAL != 0), - .int_delivery_dest = APIC_DEST_PHYSICAL | APIC_DM_FIXED, .target_cpus = cluster_target_cpus, .apic_id_registered = cluster_apic_id_registered, .init_apic_ldr = cluster_init_apic_ldr, diff --git a/arch/x86_64/kernel/genapic_flat.c b/arch/x86_64/kernel/genapic_flat.c index eb86d374813a..2ceb8b872b57 100644 --- a/arch/x86_64/kernel/genapic_flat.c +++ b/arch/x86_64/kernel/genapic_flat.c @@ -121,7 +121,6 @@ struct genapic apic_flat = { .name = "flat", .int_delivery_mode = dest_LowestPrio, .int_dest_mode = (APIC_DEST_LOGICAL != 0), - .int_delivery_dest = APIC_DEST_LOGICAL | APIC_DM_LOWEST, .target_cpus = flat_target_cpus, .apic_id_registered = flat_apic_id_registered, .init_apic_ldr = flat_init_apic_ldr, @@ -180,7 +179,6 @@ struct genapic apic_physflat = { .name = "physical flat", .int_delivery_mode = dest_Fixed, .int_dest_mode = (APIC_DEST_PHYSICAL != 0), - .int_delivery_dest = APIC_DEST_PHYSICAL | APIC_DM_FIXED, .target_cpus = physflat_target_cpus, .apic_id_registered = flat_apic_id_registered, .init_apic_ldr = flat_init_apic_ldr,/*not needed, but shouldn't hurt*/ diff --git a/include/asm-x86_64/genapic.h b/include/asm-x86_64/genapic.h index 50b38e7c58e4..81e714665344 100644 --- a/include/asm-x86_64/genapic.h +++ b/include/asm-x86_64/genapic.h @@ -16,7 +16,6 @@ struct genapic { char *name; u32 int_delivery_mode; u32 int_dest_mode; - u32 int_delivery_dest; /* for quick IPIs */ int (*apic_id_registered)(void); cpumask_t (*target_cpus)(void); void (*init_apic_ldr)(void); diff --git a/include/asm-x86_64/mach_apic.h b/include/asm-x86_64/mach_apic.h index 0acea44c9377..d33422450c00 100644 --- a/include/asm-x86_64/mach_apic.h +++ b/include/asm-x86_64/mach_apic.h @@ -16,7 +16,6 @@ #define INT_DELIVERY_MODE (genapic->int_delivery_mode) #define INT_DEST_MODE (genapic->int_dest_mode) -#define INT_DELIVERY_DEST (genapic->int_delivery_dest) #define TARGET_CPUS (genapic->target_cpus()) #define apic_id_registered (genapic->apic_id_registered) #define init_apic_ldr (genapic->init_apic_ldr) -- cgit v1.2.3 From 5f4a7a93886ce1a4327f6028cc05d423f39eebf0 Mon Sep 17 00:00:00 2001 From: Muli Ben-Yehuda Date: Tue, 26 Sep 2006 10:52:31 +0200 Subject: [PATCH] Calgary IOMMU: rearrange 'struct iommu_table' members Rearrange struct members loosely based on size for improved alignment and to save a few bytes. Signed-off-by: Muli Ben-Yehuda Signed-off-by: Jon Mason Signed-off-by: Andi Kleen --- include/asm-x86_64/calgary.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/include/asm-x86_64/calgary.h b/include/asm-x86_64/calgary.h index 4e3919524240..0a03bda94d03 100644 --- a/include/asm-x86_64/calgary.h +++ b/include/asm-x86_64/calgary.h @@ -34,12 +34,12 @@ struct iommu_table { unsigned long it_base; /* mapped address of tce table */ unsigned long it_hint; /* Hint for next alloc */ unsigned long *it_map; /* A simple allocation bitmap for now */ + void __iomem *bbar; /* Bridge BAR */ + u64 tar_val; /* Table Address Register */ + struct timer_list watchdog_timer; spinlock_t it_lock; /* Protects it_map */ unsigned int it_size; /* Size of iommu table in entries */ unsigned char it_busno; /* Bus number this table belongs to */ - void __iomem *bbar; - u64 tar_val; - struct timer_list watchdog_timer; }; #define TCE_TABLE_SIZE_UNSPECIFIED ~0 -- cgit v1.2.3 From f38db651d5da5e10235fd7dd31095969fb7ef6fb Mon Sep 17 00:00:00 2001 From: Muli Ben-Yehuda Date: Tue, 26 Sep 2006 10:52:31 +0200 Subject: [PATCH] Calgary IOMMU: consolidate per bus data structures Move the tce_table_kva array, disabled bitmap and bus_to_phb array into a new per bus 'struct calgary_bus_info'. Also slightly reorganize build_tce_table and tce_table_setparms to avoid exporting bus_info to tce.c. Signed-off-by: Muli Ben-Yehuda Signed-off-by: Jon Mason Signed-off-by: Andi Kleen --- arch/x86_64/kernel/pci-calgary.c | 53 +++++++++++++++++++++------------------- arch/x86_64/kernel/tce.c | 10 -------- include/asm-x86_64/tce.h | 1 - 3 files changed, 28 insertions(+), 36 deletions(-) (limited to 'include') diff --git a/arch/x86_64/kernel/pci-calgary.c b/arch/x86_64/kernel/pci-calgary.c index 146924ba5df5..96f6a866afad 100644 --- a/arch/x86_64/kernel/pci-calgary.c +++ b/arch/x86_64/kernel/pci-calgary.c @@ -111,17 +111,17 @@ static const unsigned long phb_offsets[] = { 0xB000 /* PHB3 */ }; -static char bus_to_phb[MAX_PHB_BUS_NUM]; -void* tce_table_kva[MAX_PHB_BUS_NUM]; unsigned int specified_table_size = TCE_TABLE_SIZE_UNSPECIFIED; static int translate_empty_slots __read_mostly = 0; static int calgary_detected __read_mostly = 0; -/* - * the bitmap of PHBs the user requested that we disable - * translation on. - */ -static DECLARE_BITMAP(translation_disabled, MAX_PHB_BUS_NUM); +struct calgary_bus_info { + void *tce_space; + int translation_disabled; + signed char phbid; +}; + +static struct calgary_bus_info bus_info[MAX_PHB_BUS_NUM] = { { NULL, 0, 0 }, }; static void tce_cache_blast(struct iommu_table *tbl); @@ -149,7 +149,7 @@ static inline unsigned int num_dma_pages(unsigned long dma, unsigned int dmalen) static inline int translate_phb(struct pci_dev* dev) { - int disabled = test_bit(dev->bus->number, translation_disabled); + int disabled = bus_info[dev->bus->number].translation_disabled; return !disabled; } @@ -454,7 +454,7 @@ static struct dma_mapping_ops calgary_dma_ops = { static inline int busno_to_phbid(unsigned char num) { - return bus_to_phb[num]; + return bus_info[num].phbid; } static inline unsigned long split_queue_offset(unsigned char num) @@ -631,6 +631,10 @@ static int __init calgary_setup_tar(struct pci_dev *dev, void __iomem *bbar) if (ret) return ret; + tbl = dev->sysdata; + tbl->it_base = (unsigned long)bus_info[dev->bus->number].tce_space; + tce_free(tbl, 0, tbl->it_size); + calgary_reserve_regions(dev); /* set TARs for each PHB */ @@ -824,7 +828,7 @@ static int __init calgary_init(void) calgary_init_one_nontraslated(dev); continue; } - if (!tce_table_kva[dev->bus->number] && !translate_empty_slots) { + if (!bus_info[dev->bus->number].tce_space && !translate_empty_slots) { pci_dev_put(dev); continue; } @@ -844,7 +848,7 @@ error: pci_dev_put(dev); continue; } - if (!tce_table_kva[dev->bus->number] && !translate_empty_slots) + if (!bus_info[dev->bus->number].tce_space && !translate_empty_slots) continue; calgary_disable_translation(dev); calgary_free_tar(dev); @@ -894,9 +898,8 @@ void __init detect_calgary(void) for (bus = 0; bus < MAX_PHB_BUS_NUM; bus++) { int dev; - - tce_table_kva[bus] = NULL; - bus_to_phb[bus] = -1; + struct calgary_bus_info *info = &bus_info[bus]; + info->phbid = -1; if (read_pci_config(bus, 0, 0, 0) != PCI_VENDOR_DEVICE_ID_CALGARY) continue; @@ -907,12 +910,9 @@ void __init detect_calgary(void) */ phb = (phb + 1) % PHBS_PER_CALGARY; - if (test_bit(bus, translation_disabled)) { - printk(KERN_INFO "Calgary: translation is disabled for " - "PHB 0x%x\n", bus); - /* skip this phb, don't allocate a tbl for it */ + if (info->translation_disabled) continue; - } + /* * Scan the slots of the PCI bus to see if there is a device present. * The parent bus will be the zero-ith device, so start at 1. @@ -923,8 +923,8 @@ void __init detect_calgary(void) tbl = alloc_tce_table(); if (!tbl) goto cleanup; - tce_table_kva[bus] = tbl; - bus_to_phb[bus] = phb; + info->tce_space = tbl; + info->phbid = phb; calgary_found = 1; break; } @@ -940,9 +940,12 @@ void __init detect_calgary(void) return; cleanup: - for (--bus; bus >= 0; --bus) - if (tce_table_kva[bus]) - free_tce_table(tce_table_kva[bus]); + for (--bus; bus >= 0; --bus) { + struct calgary_bus_info *info = &bus_info[bus]; + + if (info->tce_space) + free_tce_table(info->tce_space); + } } int __init calgary_iommu_init(void) @@ -1016,7 +1019,7 @@ static int __init calgary_parse_options(char *p) if (bridge < MAX_PHB_BUS_NUM) { printk(KERN_INFO "Calgary: disabling " "translation for PHB 0x%x\n", bridge); - set_bit(bridge, translation_disabled); + bus_info[bridge].translation_disabled = 1; } } diff --git a/arch/x86_64/kernel/tce.c b/arch/x86_64/kernel/tce.c index 0905ce6b9b32..cbabfdf78e06 100644 --- a/arch/x86_64/kernel/tce.c +++ b/arch/x86_64/kernel/tce.c @@ -106,14 +106,6 @@ static int tce_table_setparms(struct pci_dev *dev, struct iommu_table *tbl) /* set the tce table size - measured in entries */ tbl->it_size = table_size_to_number_of_entries(specified_table_size); - tbl->it_base = (unsigned long)tce_table_kva[dev->bus->number]; - if (!tbl->it_base) { - printk(KERN_ERR "Calgary: iommu_table_setparms: " - "no table allocated?!\n"); - ret = -ENOMEM; - goto done; - } - /* * number of bytes needed for the bitmap size in number of * entries; we need one bit per entry @@ -162,8 +154,6 @@ int build_tce_table(struct pci_dev *dev, void __iomem *bbar) if (ret) goto free_tbl; - tce_free(tbl, 0, tbl->it_size); - tbl->bbar = bbar; /* diff --git a/include/asm-x86_64/tce.h b/include/asm-x86_64/tce.h index 53e9a68b3336..dbb047febc5e 100644 --- a/include/asm-x86_64/tce.h +++ b/include/asm-x86_64/tce.h @@ -24,7 +24,6 @@ #ifndef _ASM_X86_64_TCE_H #define _ASM_X86_64_TCE_H -extern void* tce_table_kva[]; extern unsigned int specified_table_size; struct iommu_table; -- cgit v1.2.3 From 01215ad8d83e18321d99e9b5750a6f21cac243a2 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Tue, 26 Sep 2006 10:52:31 +0200 Subject: [PATCH] i386: Remove lock section support in mutex.h Lock sections don't work the new dwarf2 unwinder This generates slightly smaller code. It adds one more taken jump to the fast path. Cc: jbeulich@novell.com Signed-off-by: Andi Kleen --- include/asm-i386/mutex.h | 16 ++++------------ 1 file changed, 4 insertions(+), 12 deletions(-) (limited to 'include') diff --git a/include/asm-i386/mutex.h b/include/asm-i386/mutex.h index 05a538531229..7a17d9e58ad6 100644 --- a/include/asm-i386/mutex.h +++ b/include/asm-i386/mutex.h @@ -30,14 +30,10 @@ do { \ \ __asm__ __volatile__( \ LOCK_PREFIX " decl (%%eax) \n" \ - " js 2f \n" \ + " jns 1f \n" \ + " call "#fail_fn" \n" \ "1: \n" \ \ - LOCK_SECTION_START("") \ - "2: call "#fail_fn" \n" \ - " jmp 1b \n" \ - LOCK_SECTION_END \ - \ :"=a" (dummy) \ : "a" (count) \ : "memory", "ecx", "edx"); \ @@ -86,14 +82,10 @@ do { \ \ __asm__ __volatile__( \ LOCK_PREFIX " incl (%%eax) \n" \ - " jle 2f \n" \ + " jg 1f \n" \ + " call "#fail_fn" \n" \ "1: \n" \ \ - LOCK_SECTION_START("") \ - "2: call "#fail_fn" \n" \ - " jmp 1b \n" \ - LOCK_SECTION_END \ - \ :"=a" (dummy) \ : "a" (count) \ : "memory", "ecx", "edx"); \ -- cgit v1.2.3 From add659bf8aa92f8b3f01a8c0220557c959507fb1 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Tue, 26 Sep 2006 10:52:31 +0200 Subject: [PATCH] i386: Remove lock section support in rwsem.h Lock sections don't work the new dwarf2 unwinder This generates slightly smaller code. It adds one more taken jump to the fast path. Also move the trampolines into semaphore.S and add proper CFI annotations. Cc: jbeulich@novell.com Signed-off-by: Andi Kleen --- arch/i386/lib/semaphore.S | 63 +++++++++++++++++++++++++++++++++++++++++++++++ include/asm-i386/rwsem.h | 62 +++++++++------------------------------------- 2 files changed, 75 insertions(+), 50 deletions(-) (limited to 'include') diff --git a/arch/i386/lib/semaphore.S b/arch/i386/lib/semaphore.S index e16ff1696390..01f80b5c45d2 100644 --- a/arch/i386/lib/semaphore.S +++ b/arch/i386/lib/semaphore.S @@ -152,3 +152,66 @@ ENTRY(__read_lock_failed) END(__read_lock_failed) #endif + +/* Fix up special calling conventions */ +ENTRY(call_rwsem_down_read_failed) + CFI_STARTPROC + push %ecx + CFI_ADJUST_CFA_OFFSET 4 + CFI_REL_OFFSET ecx,0 + push %edx + CFI_ADJUST_CFA_OFFSET 4 + CFI_REL_OFFSET edx,0 + call rwsem_down_read_failed + pop %edx + CFI_ADJUST_CFA_OFFSET -4 + pop %ecx + CFI_ADJUST_CFA_OFFSET -4 + ret + CFI_ENDPROC + END(call_rwsem_down_read_failed) + +ENTRY(call_rwsem_down_write_failed) + CFI_STARTPROC + push %ecx + CFI_ADJUST_CFA_OFFSET 4 + CFI_REL_OFFSET ecx,0 + calll rwsem_down_write_failed + pop %ecx + CFI_ADJUST_CFA_OFFSET -4 + ret + CFI_ENDPROC + END(call_rwsem_down_write_failed) + +ENTRY(call_rwsem_wake) + CFI_STARTPROC + decw %dx /* do nothing if still outstanding active readers */ + jnz 1f + push %ecx + CFI_ADJUST_CFA_OFFSET 4 + CFI_REL_OFFSET ecx,0 + call rwsem_wake + pop %ecx + CFI_ADJUST_CFA_OFFSET -4 +1: ret + CFI_ENDPROC + END(call_rwsem_wake) + +/* Fix up special calling conventions */ +ENTRY(call_rwsem_downgrade_wake) + CFI_STARTPROC + push %ecx + CFI_ADJUST_CFA_OFFSET 4 + CFI_REL_OFFSET ecx,0 + push %edx + CFI_ADJUST_CFA_OFFSET 4 + CFI_REL_OFFSET edx,0 + call rwsem_downgrade_wake + pop %edx + CFI_ADJUST_CFA_OFFSET -4 + pop %ecx + CFI_ADJUST_CFA_OFFSET -4 + ret + CFI_ENDPROC + END(call_rwsem_downgrade_wake) + diff --git a/include/asm-i386/rwsem.h b/include/asm-i386/rwsem.h index 43113f5608eb..bc598d6388e3 100644 --- a/include/asm-i386/rwsem.h +++ b/include/asm-i386/rwsem.h @@ -99,17 +99,9 @@ static inline void __down_read(struct rw_semaphore *sem) __asm__ __volatile__( "# beginning down_read\n\t" LOCK_PREFIX " incl (%%eax)\n\t" /* adds 0x00000001, returns the old value */ - " js 2f\n\t" /* jump if we weren't granted the lock */ + " jns 1f\n" + " call call_rwsem_down_read_failed\n" "1:\n\t" - LOCK_SECTION_START("") - "2:\n\t" - " pushl %%ecx\n\t" - " pushl %%edx\n\t" - " call rwsem_down_read_failed\n\t" - " popl %%edx\n\t" - " popl %%ecx\n\t" - " jmp 1b\n" - LOCK_SECTION_END "# ending down_read\n\t" : "+m" (sem->count) : "a" (sem) @@ -151,15 +143,9 @@ static inline void __down_write_nested(struct rw_semaphore *sem, int subclass) "# beginning down_write\n\t" LOCK_PREFIX " xadd %%edx,(%%eax)\n\t" /* subtract 0x0000ffff, returns the old value */ " testl %%edx,%%edx\n\t" /* was the count 0 before? */ - " jnz 2f\n\t" /* jump if we weren't granted the lock */ - "1:\n\t" - LOCK_SECTION_START("") - "2:\n\t" - " pushl %%ecx\n\t" - " call rwsem_down_write_failed\n\t" - " popl %%ecx\n\t" - " jmp 1b\n" - LOCK_SECTION_END + " jz 1f\n" + " call call_rwsem_down_write_failed\n" + "1:\n" "# ending down_write" : "+m" (sem->count), "=d" (tmp) : "a" (sem), "1" (tmp) @@ -193,17 +179,9 @@ static inline void __up_read(struct rw_semaphore *sem) __asm__ __volatile__( "# beginning __up_read\n\t" LOCK_PREFIX " xadd %%edx,(%%eax)\n\t" /* subtracts 1, returns the old value */ - " js 2f\n\t" /* jump if the lock is being waited upon */ - "1:\n\t" - LOCK_SECTION_START("") - "2:\n\t" - " decw %%dx\n\t" /* do nothing if still outstanding active readers */ - " jnz 1b\n\t" - " pushl %%ecx\n\t" - " call rwsem_wake\n\t" - " popl %%ecx\n\t" - " jmp 1b\n" - LOCK_SECTION_END + " jns 1f\n\t" + " call call_rwsem_wake\n" + "1:\n" "# ending __up_read\n" : "+m" (sem->count), "=d" (tmp) : "a" (sem), "1" (tmp) @@ -219,17 +197,9 @@ static inline void __up_write(struct rw_semaphore *sem) "# beginning __up_write\n\t" " movl %2,%%edx\n\t" LOCK_PREFIX " xaddl %%edx,(%%eax)\n\t" /* tries to transition 0xffff0001 -> 0x00000000 */ - " jnz 2f\n\t" /* jump if the lock is being waited upon */ + " jz 1f\n" + " call call_rwsem_wake\n" "1:\n\t" - LOCK_SECTION_START("") - "2:\n\t" - " decw %%dx\n\t" /* did the active count reduce to 0? */ - " jnz 1b\n\t" /* jump back if not */ - " pushl %%ecx\n\t" - " call rwsem_wake\n\t" - " popl %%ecx\n\t" - " jmp 1b\n" - LOCK_SECTION_END "# ending __up_write\n" : "+m" (sem->count) : "a" (sem), "i" (-RWSEM_ACTIVE_WRITE_BIAS) @@ -244,17 +214,9 @@ static inline void __downgrade_write(struct rw_semaphore *sem) __asm__ __volatile__( "# beginning __downgrade_write\n\t" LOCK_PREFIX " addl %2,(%%eax)\n\t" /* transitions 0xZZZZ0001 -> 0xYYYY0001 */ - " js 2f\n\t" /* jump if the lock is being waited upon */ + " jns 1f\n\t" + " call call_rwsem_downgrade_wake\n" "1:\n\t" - LOCK_SECTION_START("") - "2:\n\t" - " pushl %%ecx\n\t" - " pushl %%edx\n\t" - " call rwsem_downgrade_wake\n\t" - " popl %%edx\n\t" - " popl %%ecx\n\t" - " jmp 1b\n" - LOCK_SECTION_END "# ending __downgrade_write\n" : "+m" (sem->count) : "a" (sem), "i" (-RWSEM_WAITING_BIAS) -- cgit v1.2.3 From 7ca2b49b06a6d26e89e3535653889f1d7892b085 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Tue, 26 Sep 2006 10:52:32 +0200 Subject: [PATCH] i386: Remove lock section support in semaphore.h Lock sections don't work the new dwarf2 unwinder This generates slightly smaller code. It adds one more taken jump to the fast path. Cc: jbeulich@novell.com Signed-off-by: Andi Kleen --- include/asm-i386/semaphore.h | 49 +++++++++++++++----------------------------- 1 file changed, 17 insertions(+), 32 deletions(-) (limited to 'include') diff --git a/include/asm-i386/semaphore.h b/include/asm-i386/semaphore.h index d51e800acf29..e63b6a68f04c 100644 --- a/include/asm-i386/semaphore.h +++ b/include/asm-i386/semaphore.h @@ -100,13 +100,10 @@ static inline void down(struct semaphore * sem) __asm__ __volatile__( "# atomic down operation\n\t" LOCK_PREFIX "decl %0\n\t" /* --sem->count */ - "js 2f\n" - "1:\n" - LOCK_SECTION_START("") - "2:\tlea %0,%%eax\n\t" - "call __down_failed\n\t" - "jmp 1b\n" - LOCK_SECTION_END + "jns 2f\n" + "\tlea %0,%%eax\n\t" + "call __down_failed\n" + "2:" :"+m" (sem->count) : :"memory","ax"); @@ -123,15 +120,12 @@ static inline int down_interruptible(struct semaphore * sem) might_sleep(); __asm__ __volatile__( "# atomic interruptible down operation\n\t" + "xorl %0,%0\n\t" LOCK_PREFIX "decl %1\n\t" /* --sem->count */ - "js 2f\n\t" - "xorl %0,%0\n" - "1:\n" - LOCK_SECTION_START("") - "2:\tlea %1,%%eax\n\t" - "call __down_failed_interruptible\n\t" - "jmp 1b\n" - LOCK_SECTION_END + "jns 2f\n\t" + "lea %1,%%eax\n\t" + "call __down_failed_interruptible\n" + "2:" :"=a" (result), "+m" (sem->count) : :"memory"); @@ -148,15 +142,12 @@ static inline int down_trylock(struct semaphore * sem) __asm__ __volatile__( "# atomic interruptible down operation\n\t" + "xorl %0,%0\n\t" LOCK_PREFIX "decl %1\n\t" /* --sem->count */ - "js 2f\n\t" - "xorl %0,%0\n" - "1:\n" - LOCK_SECTION_START("") - "2:\tlea %1,%%eax\n\t" + "jns 2f\n\t" + "lea %1,%%eax\n\t" "call __down_failed_trylock\n\t" - "jmp 1b\n" - LOCK_SECTION_END + "2:\n" :"=a" (result), "+m" (sem->count) : :"memory"); @@ -166,22 +157,16 @@ static inline int down_trylock(struct semaphore * sem) /* * Note! This is subtle. We jump to wake people up only if * the semaphore was negative (== somebody was waiting on it). - * The default case (no contention) will result in NO - * jumps for both down() and up(). */ static inline void up(struct semaphore * sem) { __asm__ __volatile__( "# atomic up operation\n\t" LOCK_PREFIX "incl %0\n\t" /* ++sem->count */ - "jle 2f\n" - "1:\n" - LOCK_SECTION_START("") - "2:\tlea %0,%%eax\n\t" - "call __up_wakeup\n\t" - "jmp 1b\n" - LOCK_SECTION_END - ".subsection 0\n" + "jg 1f\n\t" + "lea %0,%%eax\n\t" + "call __up_wakeup\n" + "1:" :"+m" (sem->count) : :"memory","ax"); -- cgit v1.2.3 From 8578bdf835d6d6ece6718858d351456367b8a5cf Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Tue, 26 Sep 2006 10:52:32 +0200 Subject: [PATCH] Don't use lock section for mutexes and semaphores Lock sections cannot be handled by the dwarf2 unwinder. Disadvantage is a taken branch in the hot path. Signed-off-by: Andi Kleen --- include/asm-x86_64/mutex.h | 20 ++++++-------------- include/asm-x86_64/semaphore.h | 40 ++++++++++++++-------------------------- include/asm-x86_64/spinlock.h | 9 ++++----- 3 files changed, 24 insertions(+), 45 deletions(-) (limited to 'include') diff --git a/include/asm-x86_64/mutex.h b/include/asm-x86_64/mutex.h index 06fab6de2a88..16396b1de3e4 100644 --- a/include/asm-x86_64/mutex.h +++ b/include/asm-x86_64/mutex.h @@ -25,13 +25,9 @@ do { \ \ __asm__ __volatile__( \ LOCK_PREFIX " decl (%%rdi) \n" \ - " js 2f \n" \ - "1: \n" \ - \ - LOCK_SECTION_START("") \ - "2: call "#fail_fn" \n" \ - " jmp 1b \n" \ - LOCK_SECTION_END \ + " jns 1f \n" \ + " call "#fail_fn" \n" \ + "1:" \ \ :"=D" (dummy) \ : "D" (v) \ @@ -75,13 +71,9 @@ do { \ \ __asm__ __volatile__( \ LOCK_PREFIX " incl (%%rdi) \n" \ - " jle 2f \n" \ - "1: \n" \ - \ - LOCK_SECTION_START("") \ - "2: call "#fail_fn" \n" \ - " jmp 1b \n" \ - LOCK_SECTION_END \ + " jg 1f \n" \ + " call "#fail_fn" \n" \ + "1: " \ \ :"=D" (dummy) \ : "D" (v) \ diff --git a/include/asm-x86_64/semaphore.h b/include/asm-x86_64/semaphore.h index 064df08b9a0f..107bd90429e8 100644 --- a/include/asm-x86_64/semaphore.h +++ b/include/asm-x86_64/semaphore.h @@ -107,12 +107,9 @@ static inline void down(struct semaphore * sem) __asm__ __volatile__( "# atomic down operation\n\t" LOCK_PREFIX "decl %0\n\t" /* --sem->count */ - "js 2f\n" - "1:\n" - LOCK_SECTION_START("") - "2:\tcall __down_failed\n\t" - "jmp 1b\n" - LOCK_SECTION_END + "jns 1f\n\t" + "call __down_failed\n" + "1:" :"=m" (sem->count) :"D" (sem) :"memory"); @@ -130,14 +127,11 @@ static inline int down_interruptible(struct semaphore * sem) __asm__ __volatile__( "# atomic interruptible down operation\n\t" + "xorl %0,%0\n\t" LOCK_PREFIX "decl %1\n\t" /* --sem->count */ - "js 2f\n\t" - "xorl %0,%0\n" - "1:\n" - LOCK_SECTION_START("") - "2:\tcall __down_failed_interruptible\n\t" - "jmp 1b\n" - LOCK_SECTION_END + "jns 2f\n\t" + "call __down_failed_interruptible\n" + "2:\n" :"=a" (result), "=m" (sem->count) :"D" (sem) :"memory"); @@ -154,14 +148,11 @@ static inline int down_trylock(struct semaphore * sem) __asm__ __volatile__( "# atomic interruptible down operation\n\t" + "xorl %0,%0\n\t" LOCK_PREFIX "decl %1\n\t" /* --sem->count */ - "js 2f\n\t" - "xorl %0,%0\n" - "1:\n" - LOCK_SECTION_START("") - "2:\tcall __down_failed_trylock\n\t" - "jmp 1b\n" - LOCK_SECTION_END + "jns 2f\n\t" + "call __down_failed_trylock\n\t" + "2:\n" :"=a" (result), "=m" (sem->count) :"D" (sem) :"memory","cc"); @@ -179,12 +170,9 @@ static inline void up(struct semaphore * sem) __asm__ __volatile__( "# atomic up operation\n\t" LOCK_PREFIX "incl %0\n\t" /* ++sem->count */ - "jle 2f\n" - "1:\n" - LOCK_SECTION_START("") - "2:\tcall __up_wakeup\n\t" - "jmp 1b\n" - LOCK_SECTION_END + "jg 1f\n\t" + "call __up_wakeup\n" + "1:" :"=m" (sem->count) :"D" (sem) :"memory"); diff --git a/include/asm-x86_64/spinlock.h b/include/asm-x86_64/spinlock.h index a8e3d89f591f..1d0733b38a4b 100644 --- a/include/asm-x86_64/spinlock.h +++ b/include/asm-x86_64/spinlock.h @@ -22,14 +22,13 @@ #define __raw_spin_lock_string \ "\n1:\t" \ LOCK_PREFIX " ; decl %0\n\t" \ - "js 2f\n" \ - LOCK_SECTION_START("") \ - "2:\t" \ + "jns 2f\n" \ + "3:\n" \ "rep;nop\n\t" \ "cmpl $0,%0\n\t" \ - "jle 2b\n\t" \ + "jle 3b\n\t" \ "jmp 1b\n" \ - LOCK_SECTION_END + "2:\t" \ #define __raw_spin_lock_string_up \ "\n\tdecl %0" -- cgit v1.2.3 From 8b059d2373c16b6d32787a49daf8ccf72dc61b71 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Tue, 26 Sep 2006 10:52:32 +0200 Subject: [PATCH] Clean up spin/rwlocks - Inline spinlock strings into their inline functions - Convert macros to typesafe inlines - Replace some leftover __asm__ __volatile__s with asm volatile Signed-off-by: Andi Kleen --- include/asm-x86_64/rwlock.h | 14 +-------- include/asm-x86_64/spinlock.h | 71 ++++++++++++++++++++++++------------------- 2 files changed, 41 insertions(+), 44 deletions(-) (limited to 'include') diff --git a/include/asm-x86_64/rwlock.h b/include/asm-x86_64/rwlock.h index 28a080d23119..72aeebed920b 100644 --- a/include/asm-x86_64/rwlock.h +++ b/include/asm-x86_64/rwlock.h @@ -21,18 +21,6 @@ #define RW_LOCK_BIAS 0x01000000 #define RW_LOCK_BIAS_STR "0x01000000" -#define __build_read_lock(rw) \ - asm volatile(LOCK_PREFIX "subl $1,(%0)\n\t" \ - "jns 1f\n" \ - "call __read_lock_failed\n" \ - "1:\n" \ - ::"D" (rw), "i" (RW_LOCK_BIAS) : "memory") - -#define __build_write_lock(rw) \ - asm volatile(LOCK_PREFIX "subl %1,(%0)\n\t" \ - "jz 1f\n" \ - "\tcall __write_lock_failed\n\t" \ - "1:\n" \ - ::"D" (rw), "i" (RW_LOCK_BIAS) : "memory") +/* Actual code is in asm/spinlock.h or in arch/x86_64/lib/rwlock.S */ #endif diff --git a/include/asm-x86_64/spinlock.h b/include/asm-x86_64/spinlock.h index 1d0733b38a4b..be7a9e629fb2 100644 --- a/include/asm-x86_64/spinlock.h +++ b/include/asm-x86_64/spinlock.h @@ -16,30 +16,23 @@ * (the type definitions are in asm/spinlock_types.h) */ -#define __raw_spin_is_locked(x) \ - (*(volatile signed int *)(&(x)->slock) <= 0) - -#define __raw_spin_lock_string \ - "\n1:\t" \ - LOCK_PREFIX " ; decl %0\n\t" \ - "jns 2f\n" \ - "3:\n" \ - "rep;nop\n\t" \ - "cmpl $0,%0\n\t" \ - "jle 3b\n\t" \ - "jmp 1b\n" \ - "2:\t" \ - -#define __raw_spin_lock_string_up \ - "\n\tdecl %0" - -#define __raw_spin_unlock_string \ - "movl $1,%0" \ - :"=m" (lock->slock) : : "memory" +static inline int __raw_spin_is_locked(raw_spinlock_t *lock) +{ + return *(volatile signed int *)(&(lock)->slock) <= 0; +} static inline void __raw_spin_lock(raw_spinlock_t *lock) { - asm volatile(__raw_spin_lock_string : "=m" (lock->slock) : : "memory"); + asm volatile( + "\n1:\t" + LOCK_PREFIX " ; decl %0\n\t" + "jns 2f\n" + "3:\n" + "rep;nop\n\t" + "cmpl $0,%0\n\t" + "jle 3b\n\t" + "jmp 1b\n" + "2:\t" : "=m" (lock->slock) : : "memory"); } #define __raw_spin_lock_flags(lock, flags) __raw_spin_lock(lock) @@ -48,7 +41,7 @@ static inline int __raw_spin_trylock(raw_spinlock_t *lock) { int oldval; - __asm__ __volatile__( + asm volatile( "xchgl %0,%1" :"=q" (oldval), "=m" (lock->slock) :"0" (0) : "memory"); @@ -58,13 +51,14 @@ static inline int __raw_spin_trylock(raw_spinlock_t *lock) static inline void __raw_spin_unlock(raw_spinlock_t *lock) { - __asm__ __volatile__( - __raw_spin_unlock_string - ); + asm volatile("movl $1,%0" :"=m" (lock->slock) :: "memory"); } -#define __raw_spin_unlock_wait(lock) \ - do { while (__raw_spin_is_locked(lock)) cpu_relax(); } while (0) +static inline void __raw_spin_unlock_wait(raw_spinlock_t *lock) +{ + while (__raw_spin_is_locked(lock)) + cpu_relax(); +} /* * Read-write spinlocks, allowing multiple readers @@ -80,17 +74,32 @@ static inline void __raw_spin_unlock(raw_spinlock_t *lock) * with the high bit (sign) being the "contended" bit. */ -#define __raw_read_can_lock(x) ((int)(x)->lock > 0) -#define __raw_write_can_lock(x) ((x)->lock == RW_LOCK_BIAS) +static inline int __raw_read_can_lock(raw_rwlock_t *lock) +{ + return (int)(lock)->lock > 0; +} + +static inline int __raw_write_can_lock(raw_rwlock_t *lock) +{ + return (lock)->lock == RW_LOCK_BIAS; +} static inline void __raw_read_lock(raw_rwlock_t *rw) { - __build_read_lock(rw); + asm volatile(LOCK_PREFIX "subl $1,(%0)\n\t" + "jns 1f\n" + "call __read_lock_failed\n" + "1:\n" + ::"D" (rw), "i" (RW_LOCK_BIAS) : "memory"); } static inline void __raw_write_lock(raw_rwlock_t *rw) { - __build_write_lock(rw); + asm volatile(LOCK_PREFIX "subl %1,(%0)\n\t" + "jz 1f\n" + "\tcall __write_lock_failed\n\t" + "1:\n" + ::"D" (rw), "i" (RW_LOCK_BIAS) : "memory"); } static inline int __raw_read_trylock(raw_rwlock_t *lock) -- cgit v1.2.3 From fb2e28485679418e459583605f9b19807a72ceca Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Tue, 26 Sep 2006 10:52:32 +0200 Subject: [PATCH] i386: Clean up spin/rwlocks - Inline spinlock strings into their inline functions - Convert macros to typesafe inlines - Replace some leftover __asm__ __volatile__s with asm volatile Signed-off-by: Andi Kleen --- include/asm-i386/rwlock.h | 14 +---- include/asm-i386/spinlock.h | 131 ++++++++++++++++++++++---------------------- 2 files changed, 68 insertions(+), 77 deletions(-) (limited to 'include') diff --git a/include/asm-i386/rwlock.h b/include/asm-i386/rwlock.h index f40ccbd8cb7f..c3e5db32fa48 100644 --- a/include/asm-i386/rwlock.h +++ b/include/asm-i386/rwlock.h @@ -20,18 +20,6 @@ #define RW_LOCK_BIAS 0x01000000 #define RW_LOCK_BIAS_STR "0x01000000" -#define __build_read_lock(rw, helper) \ - asm volatile(LOCK_PREFIX " subl $1,(%0)\n\t" \ - "jns 1f\n" \ - "call " helper "\n\t" \ - "1:\n" \ - ::"a" (rw) : "memory") - -#define __build_write_lock(rw, helper) \ - asm volatile(LOCK_PREFIX " subl $" RW_LOCK_BIAS_STR ",(%0)\n\t" \ - "jz 1f\n" \ - "call " helper "\n\t" \ - "1:\n" \ - ::"a" (rw) : "memory") +/* Code is in asm-i386/spinlock.h */ #endif diff --git a/include/asm-i386/spinlock.h b/include/asm-i386/spinlock.h index d1020363c41a..324329313af8 100644 --- a/include/asm-i386/spinlock.h +++ b/include/asm-i386/spinlock.h @@ -4,6 +4,7 @@ #include #include #include +#include #include /* @@ -17,67 +18,64 @@ * (the type definitions are in asm/spinlock_types.h) */ -#define __raw_spin_is_locked(x) \ - (*(volatile signed char *)(&(x)->slock) <= 0) - -#define __raw_spin_lock_string \ - "\n1:\t" \ - LOCK_PREFIX " ; decb %0\n\t" \ - "jns 3f\n" \ - "2:\t" \ - "rep;nop\n\t" \ - "cmpb $0,%0\n\t" \ - "jle 2b\n\t" \ - "jmp 1b\n" \ - "3:\n\t" - -/* - * NOTE: there's an irqs-on section here, which normally would have to be - * irq-traced, but on CONFIG_TRACE_IRQFLAGS we never use - * __raw_spin_lock_string_flags(). - */ -#define __raw_spin_lock_string_flags \ - "\n1:\t" \ - LOCK_PREFIX " ; decb %0\n\t" \ - "jns 5f\n" \ - "2:\t" \ - "testl $0x200, %1\n\t" \ - "jz 4f\n\t" \ - "sti\n" \ - "3:\t" \ - "rep;nop\n\t" \ - "cmpb $0, %0\n\t" \ - "jle 3b\n\t" \ - "cli\n\t" \ - "jmp 1b\n" \ - "4:\t" \ - "rep;nop\n\t" \ - "cmpb $0, %0\n\t" \ - "jg 1b\n\t" \ - "jmp 4b\n" \ - "5:\n\t" +static inline int __raw_spin_is_locked(raw_spinlock_t *x) +{ + return *(volatile signed char *)(&(x)->slock) <= 0; +} static inline void __raw_spin_lock(raw_spinlock_t *lock) { - asm(__raw_spin_lock_string : "+m" (lock->slock) : : "memory"); + asm volatile("\n1:\t" + LOCK_PREFIX " ; decb %0\n\t" + "jns 3f\n" + "2:\t" + "rep;nop\n\t" + "cmpb $0,%0\n\t" + "jle 2b\n\t" + "jmp 1b\n" + "3:\n\t" + : "+m" (lock->slock) : : "memory"); } /* * It is easier for the lock validator if interrupts are not re-enabled * in the middle of a lock-acquire. This is a performance feature anyway * so we turn it off: + * + * NOTE: there's an irqs-on section here, which normally would have to be + * irq-traced, but on CONFIG_TRACE_IRQFLAGS we never use this variant. */ #ifndef CONFIG_PROVE_LOCKING static inline void __raw_spin_lock_flags(raw_spinlock_t *lock, unsigned long flags) { - asm(__raw_spin_lock_string_flags : "+m" (lock->slock) : "r" (flags) : "memory"); + asm volatile( + "\n1:\t" + LOCK_PREFIX " ; decb %0\n\t" + "jns 5f\n" + "2:\t" + "testl $0x200, %1\n\t" + "jz 4f\n\t" + "sti\n" + "3:\t" + "rep;nop\n\t" + "cmpb $0, %0\n\t" + "jle 3b\n\t" + "cli\n\t" + "jmp 1b\n" + "4:\t" + "rep;nop\n\t" + "cmpb $0, %0\n\t" + "jg 1b\n\t" + "jmp 4b\n" + "5:\n\t" + : "+m" (lock->slock) : "r" (flags) : "memory"); } #endif static inline int __raw_spin_trylock(raw_spinlock_t *lock) { char oldval; - __asm__ __volatile__( + asm volatile( "xchgb %b0,%1" :"=q" (oldval), "+m" (lock->slock) :"0" (0) : "memory"); @@ -93,38 +91,29 @@ static inline int __raw_spin_trylock(raw_spinlock_t *lock) #if !defined(CONFIG_X86_OOSTORE) && !defined(CONFIG_X86_PPRO_FENCE) -#define __raw_spin_unlock_string \ - "movb $1,%0" \ - :"+m" (lock->slock) : : "memory" - - static inline void __raw_spin_unlock(raw_spinlock_t *lock) { - __asm__ __volatile__( - __raw_spin_unlock_string - ); + asm volatile("movb $1,%0" : "+m" (lock->slock) :: "memory"); } #else -#define __raw_spin_unlock_string \ - "xchgb %b0, %1" \ - :"=q" (oldval), "+m" (lock->slock) \ - :"0" (oldval) : "memory" - static inline void __raw_spin_unlock(raw_spinlock_t *lock) { char oldval = 1; - __asm__ __volatile__( - __raw_spin_unlock_string - ); + asm volatile("xchgb %b0, %1" + : "=q" (oldval), "+m" (lock->slock) + : "0" (oldval) : "memory"); } #endif -#define __raw_spin_unlock_wait(lock) \ - do { while (__raw_spin_is_locked(lock)) cpu_relax(); } while (0) +static inline void __raw_spin_unlock_wait(raw_spinlock_t *lock) +{ + while (__raw_spin_is_locked(lock)) + cpu_relax(); +} /* * Read-write spinlocks, allowing multiple readers @@ -151,22 +140,36 @@ static inline void __raw_spin_unlock(raw_spinlock_t *lock) * read_can_lock - would read_trylock() succeed? * @lock: the rwlock in question. */ -#define __raw_read_can_lock(x) ((int)(x)->lock > 0) +static inline int __raw_read_can_lock(raw_rwlock_t *x) +{ + return (int)(x)->lock > 0; +} /** * write_can_lock - would write_trylock() succeed? * @lock: the rwlock in question. */ -#define __raw_write_can_lock(x) ((x)->lock == RW_LOCK_BIAS) +static inline int __raw_write_can_lock(raw_rwlock_t *x) +{ + return (x)->lock == RW_LOCK_BIAS; +} static inline void __raw_read_lock(raw_rwlock_t *rw) { - __build_read_lock(rw, "__read_lock_failed"); + asm volatile(LOCK_PREFIX " subl $1,(%0)\n\t" + "jns 1f\n" + "call __read_lock_failed\n\t" + "1:\n" + ::"a" (rw) : "memory"); } static inline void __raw_write_lock(raw_rwlock_t *rw) { - __build_write_lock(rw, "__write_lock_failed"); + asm volatile(LOCK_PREFIX " subl $" RW_LOCK_BIAS_STR ",(%0)\n\t" + "jz 1f\n" + "call __write_lock_failed\n\t" + "1:\n" + ::"a" (rw) : "memory"); } static inline int __raw_read_trylock(raw_rwlock_t *lock) -- cgit v1.2.3 From 1a3f239ddf9208f2e52d36fef1c1c4518cbbbabe Mon Sep 17 00:00:00 2001 From: Rusty Russell Date: Tue, 26 Sep 2006 10:52:32 +0200 Subject: [PATCH] i386: Replace i386 open-coded cmdline parsing with This patch replaces the open-coded early commandline parsing throughout the i386 boot code with the generic mechanism (already used by ppc, powerpc, ia64 and s390). The code was inconsistent with whether it deletes the option from the cmdline or not, meaning some of these will get passed through the environment into init. This transformation is mainly mechanical, but there are some notable parts: 1) Grammar: s/linux never set's it up/linux never sets it up/ 2) Remove hacked-in earlyprintk= option scanning. When someone actually implements CONFIG_EARLY_PRINTK, then they can use early_param(). [AK: actually it is implemented, but I'm adding the early_param it in the next x86-64 patch] 3) Move declaration of generic_apic_probe() from setup.c into asm/apic.h 4) Various parameters now moved into their appropriate files (thanks Andi). 5) All parse functions which examine arg need to check for NULL, except one where it has subtle humor value. AK: readded acpi_sci handling which was completely dropped AK: moved some more variables into acpi/boot.c Cc: len.brown@intel.com Signed-off-by: Rusty Russell Signed-off-by: Andi Kleen --- arch/i386/kernel/acpi/boot.c | 76 ++++++++- arch/i386/kernel/apic.c | 15 ++ arch/i386/kernel/io_apic.c | 24 ++- arch/i386/kernel/machine_kexec.c | 23 +++ arch/i386/kernel/setup.c | 350 +++++++++++++-------------------------- arch/i386/kernel/smpboot.c | 13 ++ arch/i386/mach-generic/probe.c | 58 ++++--- arch/i386/mm/init.c | 18 +- include/asm-i386/acpi.h | 14 -- include/asm-i386/apic.h | 4 +- include/asm-i386/io_apic.h | 11 ++ include/asm-i386/pgtable.h | 2 - 12 files changed, 319 insertions(+), 289 deletions(-) (limited to 'include') diff --git a/arch/i386/kernel/acpi/boot.c b/arch/i386/kernel/acpi/boot.c index ee003bc0e8b1..87e2ab50b694 100644 --- a/arch/i386/kernel/acpi/boot.c +++ b/arch/i386/kernel/acpi/boot.c @@ -36,6 +36,8 @@ #include #include +int __initdata acpi_force = 0; + #ifdef CONFIG_X86_64 extern void __init clustered_apic_check(void); @@ -860,8 +862,6 @@ static void __init acpi_process_madt(void) return; } -extern int acpi_force; - #ifdef __i386__ static int __init disable_acpi_irq(struct dmi_system_id *d) @@ -1163,3 +1163,75 @@ int __init acpi_boot_init(void) return 0; } + +static int __init parse_acpi(char *arg) +{ + if (!arg) + return -EINVAL; + + /* "acpi=off" disables both ACPI table parsing and interpreter */ + if (strcmp(arg, "off") == 0) { + disable_acpi(); + } + /* acpi=force to over-ride black-list */ + else if (strcmp(arg, "force") == 0) { + acpi_force = 1; + acpi_ht = 1; + acpi_disabled = 0; + } + /* acpi=strict disables out-of-spec workarounds */ + else if (strcmp(arg, "strict") == 0) { + acpi_strict = 1; + } + /* Limit ACPI just to boot-time to enable HT */ + else if (strcmp(arg, "ht") == 0) { + if (!acpi_force) + disable_acpi(); + acpi_ht = 1; + } + /* "acpi=noirq" disables ACPI interrupt routing */ + else if (strcmp(arg, "noirq") == 0) { + acpi_noirq_set(); + } else { + /* Core will printk when we return error. */ + return -EINVAL; + } + return 0; +} +early_param("acpi", parse_acpi); + +/* FIXME: Using pci= for an ACPI parameter is a travesty. */ +static int __init parse_pci(char *arg) +{ + if (arg && strcmp(arg, "noacpi") == 0) + acpi_disable_pci(); + return 0; +} +early_param("pci", parse_pci); + +#ifdef CONFIG_X86_IO_APIC +static int __init parse_acpi_skip_timer_override(char *arg) +{ + acpi_skip_timer_override = 1; + return 0; +} +early_param("acpi_skip_timer_override", parse_acpi_skip_timer_override); +#endif /* CONFIG_X86_IO_APIC */ + +static int __init setup_acpi_sci(char *s) +{ + if (!s) + return -EINVAL; + if (!strcmp(s, "edge")) + acpi_sci_flags.trigger = 1; + else if (!strcmp(s, "level")) + acpi_sci_flags.trigger = 3; + else if (!strcmp(s, "high")) + acpi_sci_flags.polarity = 1; + else if (!strcmp(s, "low")) + acpi_sci_flags.polarity = 3; + else + return -EINVAL; + return 0; +} +early_param("acpi_sci", setup_acpi_sci); diff --git a/arch/i386/kernel/apic.c b/arch/i386/kernel/apic.c index 1a34fc57800b..ce75e71b694f 100644 --- a/arch/i386/kernel/apic.c +++ b/arch/i386/kernel/apic.c @@ -1372,3 +1372,18 @@ int __init APIC_init_uniprocessor (void) return 0; } + +static int __init parse_lapic(char *arg) +{ + lapic_enable(); + return 0; +} +early_param("lapic", parse_lapic); + +static int __init parse_nolapic(char *arg) +{ + lapic_disable(); + return 0; +} +early_param("nolapic", parse_nolapic); + diff --git a/arch/i386/kernel/io_apic.c b/arch/i386/kernel/io_apic.c index b713f27d7e86..fd0df75cfbda 100644 --- a/arch/i386/kernel/io_apic.c +++ b/arch/i386/kernel/io_apic.c @@ -66,7 +66,7 @@ int sis_apic_bug = -1; */ int nr_ioapic_registers[MAX_IO_APICS]; -int disable_timer_pin_1 __initdata; +static int disable_timer_pin_1 __initdata; /* * Rough estimation of how many shared IRQs there are, can @@ -2691,3 +2691,25 @@ int io_apic_set_pci_routing (int ioapic, int pin, int irq, int edge_level, int a } #endif /* CONFIG_ACPI */ + +static int __init parse_disable_timer_pin_1(char *arg) +{ + disable_timer_pin_1 = 1; + return 0; +} +early_param("disable_timer_pin_1", parse_disable_timer_pin_1); + +static int __init parse_enable_timer_pin_1(char *arg) +{ + disable_timer_pin_1 = -1; + return 0; +} +early_param("enable_timer_pin_1", parse_enable_timer_pin_1); + +static int __init parse_noapic(char *arg) +{ + /* disable IO-APIC */ + disable_ioapic_setup(); + return 0; +} +early_param("noapic", parse_noapic); diff --git a/arch/i386/kernel/machine_kexec.c b/arch/i386/kernel/machine_kexec.c index 6b1ae6ba76f0..66c3dc99a655 100644 --- a/arch/i386/kernel/machine_kexec.c +++ b/arch/i386/kernel/machine_kexec.c @@ -9,6 +9,7 @@ #include #include #include +#include #include #include #include @@ -209,3 +210,25 @@ NORET_TYPE void machine_kexec(struct kimage *image) rnk = (relocate_new_kernel_t) reboot_code_buffer; (*rnk)(page_list, reboot_code_buffer, image->start, cpu_has_pae); } + +/* crashkernel=size@addr specifies the location to reserve for + * a crash kernel. By reserving this memory we guarantee + * that linux never sets it up as a DMA target. + * Useful for holding code to do something appropriate + * after a kernel panic. + */ +static int __init parse_crashkernel(char *arg) +{ + unsigned long size, base; + size = memparse(arg, &arg); + if (*arg == '@') { + base = memparse(arg+1, &arg); + /* FIXME: Do I want a sanity check + * to validate the memory range? + */ + crashk_res.start = base; + crashk_res.end = base + size - 1; + } + return 0; +} +early_param("crashkernel", parse_crashkernel); diff --git a/arch/i386/kernel/setup.c b/arch/i386/kernel/setup.c index 71a540362b78..c6e31ed386f5 100644 --- a/arch/i386/kernel/setup.c +++ b/arch/i386/kernel/setup.c @@ -96,11 +96,6 @@ unsigned long mmu_cr4_features; #endif EXPORT_SYMBOL(acpi_disabled); -#ifdef CONFIG_ACPI -int __initdata acpi_force = 0; -extern acpi_interrupt_flags acpi_sci_flags; -#endif - /* for MCA, but anyone else can use it if they want */ unsigned int machine_id; #ifdef CONFIG_MCA @@ -148,7 +143,6 @@ EXPORT_SYMBOL(ist_info); struct e820map e820; extern void early_cpu_init(void); -extern void generic_apic_probe(char *); extern int root_mountflags; unsigned long saved_videomode; @@ -700,238 +694,132 @@ static inline void copy_edd(void) } #endif -static void __init parse_cmdline_early (char ** cmdline_p) -{ - char c = ' ', *to = command_line, *from = saved_command_line; - int len = 0; - int userdef = 0; +static int __initdata user_defined_memmap = 0; - /* Save unparsed command line copy for /proc/cmdline */ - saved_command_line[COMMAND_LINE_SIZE-1] = '\0'; +/* + * "mem=nopentium" disables the 4MB page tables. + * "mem=XXX[kKmM]" defines a memory region from HIGH_MEM + * to , overriding the bios size. + * "memmap=XXX[KkmM]@XXX[KkmM]" defines a memory region from + * to +, overriding the bios size. + * + * HPA tells me bootloaders need to parse mem=, so no new + * option should be mem= [also see Documentation/i386/boot.txt] + */ +static int __init parse_mem(char *arg) +{ + if (!arg) + return -EINVAL; - for (;;) { - if (c != ' ') - goto next_char; - /* - * "mem=nopentium" disables the 4MB page tables. - * "mem=XXX[kKmM]" defines a memory region from HIGH_MEM - * to , overriding the bios size. - * "memmap=XXX[KkmM]@XXX[KkmM]" defines a memory region from - * to +, overriding the bios size. - * - * HPA tells me bootloaders need to parse mem=, so no new - * option should be mem= [also see Documentation/i386/boot.txt] + if (strcmp(arg, "nopentium") == 0) { + clear_bit(X86_FEATURE_PSE, boot_cpu_data.x86_capability); + disable_pse = 1; + } else { + /* If the user specifies memory size, we + * limit the BIOS-provided memory map to + * that size. exactmap can be used to specify + * the exact map. mem=number can be used to + * trim the existing memory map. */ - if (!memcmp(from, "mem=", 4)) { - if (to != command_line) - to--; - if (!memcmp(from+4, "nopentium", 9)) { - from += 9+4; - clear_bit(X86_FEATURE_PSE, boot_cpu_data.x86_capability); - disable_pse = 1; - } else { - /* If the user specifies memory size, we - * limit the BIOS-provided memory map to - * that size. exactmap can be used to specify - * the exact map. mem=number can be used to - * trim the existing memory map. - */ - unsigned long long mem_size; + unsigned long long mem_size; - mem_size = memparse(from+4, &from); - limit_regions(mem_size); - userdef=1; - } - } - - else if (!memcmp(from, "memmap=", 7)) { - if (to != command_line) - to--; - if (!memcmp(from+7, "exactmap", 8)) { -#ifdef CONFIG_CRASH_DUMP - /* If we are doing a crash dump, we - * still need to know the real mem - * size before original memory map is - * reset. - */ - find_max_pfn(); - saved_max_pfn = max_pfn; -#endif - from += 8+7; - e820.nr_map = 0; - userdef = 1; - } else { - /* If the user specifies memory size, we - * limit the BIOS-provided memory map to - * that size. exactmap can be used to specify - * the exact map. mem=number can be used to - * trim the existing memory map. - */ - unsigned long long start_at, mem_size; - - mem_size = memparse(from+7, &from); - if (*from == '@') { - start_at = memparse(from+1, &from); - add_memory_region(start_at, mem_size, E820_RAM); - } else if (*from == '#') { - start_at = memparse(from+1, &from); - add_memory_region(start_at, mem_size, E820_ACPI); - } else if (*from == '$') { - start_at = memparse(from+1, &from); - add_memory_region(start_at, mem_size, E820_RESERVED); - } else { - limit_regions(mem_size); - userdef=1; - } - } - } - - else if (!memcmp(from, "noexec=", 7)) - noexec_setup(from + 7); + mem_size = memparse(arg, &arg); + limit_regions(mem_size); + user_defined_memmap = 1; + } + return 0; +} +early_param("mem", parse_mem); +static int __init parse_memmap(char *arg) +{ + if (!arg) + return -EINVAL; -#ifdef CONFIG_X86_SMP - /* - * If the BIOS enumerates physical processors before logical, - * maxcpus=N at enumeration-time can be used to disable HT. + if (strcmp(arg, "exactmap") == 0) { +#ifdef CONFIG_CRASH_DUMP + /* If we are doing a crash dump, we + * still need to know the real mem + * size before original memory map is + * reset. */ - else if (!memcmp(from, "maxcpus=", 8)) { - extern unsigned int maxcpus; - - maxcpus = simple_strtoul(from + 8, NULL, 0); - } + find_max_pfn(); + saved_max_pfn = max_pfn; #endif - -#ifdef CONFIG_ACPI - /* "acpi=off" disables both ACPI table parsing and interpreter */ - else if (!memcmp(from, "acpi=off", 8)) { - disable_acpi(); - } - - /* acpi=force to over-ride black-list */ - else if (!memcmp(from, "acpi=force", 10)) { - acpi_force = 1; - acpi_ht = 1; - acpi_disabled = 0; - } - - /* acpi=strict disables out-of-spec workarounds */ - else if (!memcmp(from, "acpi=strict", 11)) { - acpi_strict = 1; - } - - /* Limit ACPI just to boot-time to enable HT */ - else if (!memcmp(from, "acpi=ht", 7)) { - if (!acpi_force) - disable_acpi(); - acpi_ht = 1; - } - - /* "pci=noacpi" disable ACPI IRQ routing and PCI scan */ - else if (!memcmp(from, "pci=noacpi", 10)) { - acpi_disable_pci(); - } - /* "acpi=noirq" disables ACPI interrupt routing */ - else if (!memcmp(from, "acpi=noirq", 10)) { - acpi_noirq_set(); + e820.nr_map = 0; + user_defined_memmap = 1; + } else { + /* If the user specifies memory size, we + * limit the BIOS-provided memory map to + * that size. exactmap can be used to specify + * the exact map. mem=number can be used to + * trim the existing memory map. + */ + unsigned long long start_at, mem_size; + + mem_size = memparse(arg, &arg); + if (*arg == '@') { + start_at = memparse(arg+1, &arg); + add_memory_region(start_at, mem_size, E820_RAM); + } else if (*arg == '#') { + start_at = memparse(arg+1, &arg); + add_memory_region(start_at, mem_size, E820_ACPI); + } else if (*arg == '$') { + start_at = memparse(arg+1, &arg); + add_memory_region(start_at, mem_size, E820_RESERVED); + } else { + limit_regions(mem_size); + user_defined_memmap = 1; } + } + return 0; +} +early_param("memmap", parse_memmap); - else if (!memcmp(from, "acpi_sci=edge", 13)) - acpi_sci_flags.trigger = 1; - - else if (!memcmp(from, "acpi_sci=level", 14)) - acpi_sci_flags.trigger = 3; - - else if (!memcmp(from, "acpi_sci=high", 13)) - acpi_sci_flags.polarity = 1; - - else if (!memcmp(from, "acpi_sci=low", 12)) - acpi_sci_flags.polarity = 3; - -#ifdef CONFIG_X86_IO_APIC - else if (!memcmp(from, "acpi_skip_timer_override", 24)) - acpi_skip_timer_override = 1; - - if (!memcmp(from, "disable_timer_pin_1", 19)) - disable_timer_pin_1 = 1; - if (!memcmp(from, "enable_timer_pin_1", 18)) - disable_timer_pin_1 = -1; +#ifdef CONFIG_PROC_VMCORE +/* elfcorehdr= specifies the location of elf core header + * stored by the crashed kernel. + */ +static int __init parse_elfcorehdr(char *arg) +{ + if (!arg) + return -EINVAL; - /* disable IO-APIC */ - else if (!memcmp(from, "noapic", 6)) - disable_ioapic_setup(); -#endif /* CONFIG_X86_IO_APIC */ -#endif /* CONFIG_ACPI */ + elfcorehdr_addr = memparse(arg, &arg); + return 0; +} +early_param("elfcorehdr", parse_elfcorehdr); +#endif /* CONFIG_PROC_VMCORE */ -#ifdef CONFIG_X86_LOCAL_APIC - /* enable local APIC */ - else if (!memcmp(from, "lapic", 5)) - lapic_enable(); +/* + * highmem=size forces highmem to be exactly 'size' bytes. + * This works even on boxes that have no highmem otherwise. + * This also works to reduce highmem size on bigger boxes. + */ +static int __init parse_highmem(char *arg) +{ + if (!arg) + return -EINVAL; - /* disable local APIC */ - else if (!memcmp(from, "nolapic", 6)) - lapic_disable(); -#endif /* CONFIG_X86_LOCAL_APIC */ + highmem_pages = memparse(arg, &arg) >> PAGE_SHIFT; + return 0; +} +early_param("highmem", parse_highmem); -#ifdef CONFIG_KEXEC - /* crashkernel=size@addr specifies the location to reserve for - * a crash kernel. By reserving this memory we guarantee - * that linux never set's it up as a DMA target. - * Useful for holding code to do something appropriate - * after a kernel panic. - */ - else if (!memcmp(from, "crashkernel=", 12)) { - unsigned long size, base; - size = memparse(from+12, &from); - if (*from == '@') { - base = memparse(from+1, &from); - /* FIXME: Do I want a sanity check - * to validate the memory range? - */ - crashk_res.start = base; - crashk_res.end = base + size - 1; - } - } -#endif -#ifdef CONFIG_PROC_VMCORE - /* elfcorehdr= specifies the location of elf core header - * stored by the crashed kernel. - */ - else if (!memcmp(from, "elfcorehdr=", 11)) - elfcorehdr_addr = memparse(from+11, &from); -#endif +/* + * vmalloc=size forces the vmalloc area to be exactly 'size' + * bytes. This can be used to increase (or decrease) the + * vmalloc area - the default is 128m. + */ +static int __init parse_vmalloc(char *arg) +{ + if (!arg) + return -EINVAL; - /* - * highmem=size forces highmem to be exactly 'size' bytes. - * This works even on boxes that have no highmem otherwise. - * This also works to reduce highmem size on bigger boxes. - */ - else if (!memcmp(from, "highmem=", 8)) - highmem_pages = memparse(from+8, &from) >> PAGE_SHIFT; - - /* - * vmalloc=size forces the vmalloc area to be exactly 'size' - * bytes. This can be used to increase (or decrease) the - * vmalloc area - the default is 128m. - */ - else if (!memcmp(from, "vmalloc=", 8)) - __VMALLOC_RESERVE = memparse(from+8, &from); - - next_char: - c = *(from++); - if (!c) - break; - if (COMMAND_LINE_SIZE <= ++len) - break; - *(to++) = c; - } - *to = '\0'; - *cmdline_p = command_line; - if (userdef) { - printk(KERN_INFO "user-defined physical RAM map:\n"); - print_memory_map("user"); - } + __VMALLOC_RESERVE = memparse(arg, &arg); + return 0; } +early_param("vmalloc", parse_vmalloc); /* * Callback for efi_memory_walk. @@ -1507,17 +1395,15 @@ void __init setup_arch(char **cmdline_p) data_resource.start = virt_to_phys(_etext); data_resource.end = virt_to_phys(_edata)-1; - parse_cmdline_early(cmdline_p); + parse_early_param(); -#ifdef CONFIG_EARLY_PRINTK - { - char *s = strstr(*cmdline_p, "earlyprintk="); - if (s) { - setup_early_printk(strchr(s, '=') + 1); - printk("early console enabled\n"); - } + if (user_defined_memmap) { + printk(KERN_INFO "user-defined physical RAM map:\n"); + print_memory_map("user"); } -#endif + + strlcpy(command_line, saved_command_line, COMMAND_LINE_SIZE); + *cmdline_p = command_line; max_low_pfn = setup_memory(); @@ -1546,7 +1432,7 @@ void __init setup_arch(char **cmdline_p) dmi_scan_machine(); #ifdef CONFIG_X86_GENERICARCH - generic_apic_probe(*cmdline_p); + generic_apic_probe(); #endif if (efi_enabled) efi_map_memmap(); diff --git a/arch/i386/kernel/smpboot.c b/arch/i386/kernel/smpboot.c index 9367af76ce37..517eb3874550 100644 --- a/arch/i386/kernel/smpboot.c +++ b/arch/i386/kernel/smpboot.c @@ -1491,3 +1491,16 @@ void __init smp_intr_init(void) /* IPI for generic function call */ set_intr_gate(CALL_FUNCTION_VECTOR, call_function_interrupt); } + +/* + * If the BIOS enumerates physical processors before logical, + * maxcpus=N at enumeration-time can be used to disable HT. + */ +static int __init parse_maxcpus(char *arg) +{ + extern unsigned int maxcpus; + + maxcpus = simple_strtoul(arg, NULL, 0); + return 0; +} +early_param("maxcpus", parse_maxcpus); diff --git a/arch/i386/mach-generic/probe.c b/arch/i386/mach-generic/probe.c index 793d1b473251..94b1fd9cbe3c 100644 --- a/arch/i386/mach-generic/probe.c +++ b/arch/i386/mach-generic/probe.c @@ -9,6 +9,7 @@ #include #include #include +#include #include #include #include @@ -29,7 +30,24 @@ struct genapic *apic_probe[] __initdata = { NULL, }; -static int cmdline_apic; +static int cmdline_apic __initdata; +static int __init parse_apic(char *arg) +{ + int i; + + if (!arg) + return -EINVAL; + + for (i = 0; apic_probe[i]; i++) { + if (!strcmp(apic_probe[i]->name, arg)) { + genapic = apic_probe[i]; + cmdline_apic = 1; + return 0; + } + } + return -ENOENT; +} +early_param("apic", parse_apic); void __init generic_bigsmp_probe(void) { @@ -48,40 +66,20 @@ void __init generic_bigsmp_probe(void) } } -void __init generic_apic_probe(char *command_line) +void __init generic_apic_probe(void) { - char *s; - int i; - int changed = 0; - - s = strstr(command_line, "apic="); - if (s && (s == command_line || isspace(s[-1]))) { - char *p = strchr(s, ' '), old; - if (!p) - p = strchr(s, '\0'); - old = *p; - *p = 0; - for (i = 0; !changed && apic_probe[i]; i++) { - if (!strcmp(apic_probe[i]->name, s+5)) { - changed = 1; + if (!cmdline_apic) { + int i; + for (i = 0; apic_probe[i]; i++) { + if (apic_probe[i]->probe()) { genapic = apic_probe[i]; + break; } } - if (!changed) - printk(KERN_ERR "Unknown genapic `%s' specified.\n", s); - *p = old; - cmdline_apic = changed; - } - for (i = 0; !changed && apic_probe[i]; i++) { - if (apic_probe[i]->probe()) { - changed = 1; - genapic = apic_probe[i]; - } + /* Not visible without early console */ + if (!apic_probe[i]) + panic("Didn't find an APIC driver"); } - /* Not visible without early console */ - if (!changed) - panic("Didn't find an APIC driver"); - printk(KERN_INFO "Using APIC driver %s\n", genapic->name); } diff --git a/arch/i386/mm/init.c b/arch/i386/mm/init.c index d0c2fdf6a4d7..951386606d09 100644 --- a/arch/i386/mm/init.c +++ b/arch/i386/mm/init.c @@ -435,16 +435,22 @@ u64 __supported_pte_mask __read_mostly = ~_PAGE_NX; * on Enable * off Disable */ -void __init noexec_setup(const char *str) +static int __init noexec_setup(char *str) { - if (!strncmp(str, "on",2) && cpu_has_nx) { - __supported_pte_mask |= _PAGE_NX; - disable_nx = 0; - } else if (!strncmp(str,"off",3)) { + if (!str || !strcmp(str, "on")) { + if (cpu_has_nx) { + __supported_pte_mask |= _PAGE_NX; + disable_nx = 0; + } + } else if (!strcmp(str,"off")) { disable_nx = 1; __supported_pte_mask &= ~_PAGE_NX; - } + } else + return -EINVAL; + + return 0; } +early_param("noexec", noexec_setup); int nx_enabled = 0; #ifdef CONFIG_X86_PAE diff --git a/include/asm-i386/acpi.h b/include/asm-i386/acpi.h index 20f523954218..6016632d032f 100644 --- a/include/asm-i386/acpi.h +++ b/include/asm-i386/acpi.h @@ -131,21 +131,7 @@ static inline void disable_acpi(void) extern int acpi_gsi_to_irq(u32 gsi, unsigned int *irq); #ifdef CONFIG_X86_IO_APIC -extern int skip_ioapic_setup; extern int acpi_skip_timer_override; - -static inline void disable_ioapic_setup(void) -{ - skip_ioapic_setup = 1; -} - -static inline int ioapic_setup_disabled(void) -{ - return skip_ioapic_setup; -} - -#else -static inline void disable_ioapic_setup(void) { } #endif static inline void acpi_noirq_set(void) { acpi_noirq = 1; } diff --git a/include/asm-i386/apic.h b/include/asm-i386/apic.h index 2c1e371cebb6..8c5331ceca7b 100644 --- a/include/asm-i386/apic.h +++ b/include/asm-i386/apic.h @@ -42,6 +42,8 @@ static inline void lapic_enable(void) } while (0) +extern void generic_apic_probe(void); + #ifdef CONFIG_X86_LOCAL_APIC /* @@ -117,8 +119,6 @@ extern void enable_APIC_timer(void); extern void enable_NMI_through_LVT0 (void * dummy); -extern int disable_timer_pin_1; - void smp_send_timer_broadcast_ipi(struct pt_regs *regs); void switch_APIC_timer_to_ipi(void *cpumask); void switch_ipi_to_APIC_timer(void *cpumask); diff --git a/include/asm-i386/io_apic.h b/include/asm-i386/io_apic.h index 5092e819b8a2..5d309275a1dc 100644 --- a/include/asm-i386/io_apic.h +++ b/include/asm-i386/io_apic.h @@ -188,6 +188,16 @@ static inline void io_apic_modify(unsigned int apic, unsigned int reg, unsigned /* 1 if "noapic" boot option passed */ extern int skip_ioapic_setup; +static inline void disable_ioapic_setup(void) +{ + skip_ioapic_setup = 1; +} + +static inline int ioapic_setup_disabled(void) +{ + return skip_ioapic_setup; +} + /* * If we use the IO-APIC for IRQ routing, disable automatic * assignment of PCI IRQ's. @@ -206,6 +216,7 @@ extern int (*ioapic_renumber_irq)(int ioapic, int irq); #else /* !CONFIG_X86_IO_APIC */ #define io_apic_assign_pci_irqs 0 +static inline void disable_ioapic_setup(void) { } #endif extern int assign_irq_vector(int irq); diff --git a/include/asm-i386/pgtable.h b/include/asm-i386/pgtable.h index 09697fec3d2b..64140f2f1b95 100644 --- a/include/asm-i386/pgtable.h +++ b/include/asm-i386/pgtable.h @@ -391,8 +391,6 @@ extern pte_t *lookup_address(unsigned long address); static inline int set_kernel_exec(unsigned long vaddr, int enable) { return 0;} #endif -extern void noexec_setup(const char *str); - #if defined(CONFIG_HIGHPTE) #define pte_offset_map(dir, address) \ ((pte_t *)kmap_atomic(pmd_page(*(dir)),KM_PTE0) + pte_index(address)) -- cgit v1.2.3 From 2c8c0e6b8d7700a990da8d24eff767f9ca223b96 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Tue, 26 Sep 2006 10:52:32 +0200 Subject: [PATCH] Convert x86-64 to early param Instead of hackish manual parsing Requires earlier i386 patchkit, but also fixes i386 early_printk again. I removed some obsolete really early parameters which didn't do anything useful. Also made a few parameters that needed it early (mostly oops printing setup) Also removed one panic check that wasn't visible without early console anyways (the early console is now initialized after that panic) This cleans up a lot of code. Signed-off-by: Andi Kleen --- arch/x86_64/kernel/apic.c | 34 ++++--- arch/x86_64/kernel/e820.c | 53 ++++++++-- arch/x86_64/kernel/early_printk.c | 20 ++-- arch/x86_64/kernel/head64.c | 15 --- arch/x86_64/kernel/io_apic.c | 15 ++- arch/x86_64/kernel/machine_kexec.c | 28 ++++++ arch/x86_64/kernel/pci-dma.c | 7 +- arch/x86_64/kernel/setup.c | 197 ++++--------------------------------- arch/x86_64/kernel/setup64.c | 8 +- arch/x86_64/kernel/smpboot.c | 6 +- arch/x86_64/kernel/traps.c | 24 +++-- arch/x86_64/mm/numa.c | 9 +- include/asm-x86_64/apic.h | 4 +- include/asm-x86_64/e820.h | 3 +- include/asm-x86_64/pgtable.h | 1 - include/asm-x86_64/proto.h | 10 -- 16 files changed, 159 insertions(+), 275 deletions(-) (limited to 'include') diff --git a/arch/x86_64/kernel/apic.c b/arch/x86_64/kernel/apic.c index 496cd1bd2ae5..660602c51f51 100644 --- a/arch/x86_64/kernel/apic.c +++ b/arch/x86_64/kernel/apic.c @@ -36,6 +36,7 @@ #include #include #include +#include int apic_verbosity; int apic_runs_main_timer; @@ -546,18 +547,24 @@ static void apic_pm_activate(void) { } static int __init apic_set_verbosity(char *str) { + if (str == NULL) { + skip_ioapic_setup = 0; + ioapic_force = 1; + return 0; + } if (strcmp("debug", str) == 0) apic_verbosity = APIC_DEBUG; else if (strcmp("verbose", str) == 0) apic_verbosity = APIC_VERBOSE; - else + else { printk(KERN_WARNING "APIC Verbosity level %s not recognised" - " use apic=verbose or apic=debug", str); + " use apic=verbose or apic=debug\n", str); + return -EINVAL; + } - return 1; + return 0; } - -__setup("apic=", apic_set_verbosity); +early_param("apic", apic_set_verbosity); /* * Detect and enable local APICs on non-SMP boards. @@ -1078,14 +1085,17 @@ int __init APIC_init_uniprocessor (void) static __init int setup_disableapic(char *str) { disable_apic = 1; - return 1; -} + clear_bit(X86_FEATURE_APIC, boot_cpu_data.x86_capability); + return 0; +} +early_param("disableapic", setup_disableapic); +/* same as disableapic, for compatibility */ static __init int setup_nolapic(char *str) { - disable_apic = 1; - return 1; + return setup_disableapic(str); } +early_param("nolapic", setup_nolapic); static __init int setup_noapictimer(char *str) { @@ -1118,11 +1128,5 @@ static __init int setup_apicpmtimer(char *s) } __setup("apicpmtimer", setup_apicpmtimer); -/* dummy parsing: see setup.c */ - -__setup("disableapic", setup_disableapic); -__setup("nolapic", setup_nolapic); /* same as disableapic, for compatibility */ - __setup("noapictimer", setup_noapictimer); -/* no "lapic" flag - we only use the lapic when the BIOS tells us so. */ diff --git a/arch/x86_64/kernel/e820.c b/arch/x86_64/kernel/e820.c index 1362aad4f3aa..a4739dc82937 100644 --- a/arch/x86_64/kernel/e820.c +++ b/arch/x86_64/kernel/e820.c @@ -596,31 +596,64 @@ void __init setup_memory_region(void) e820_print_map(who); } -void __init parse_memopt(char *p, char **from) -{ - end_user_pfn = memparse(p, from); +static int __init parse_memopt(char *p) +{ + if (!p) + return -EINVAL; + end_user_pfn = memparse(p, &p); end_user_pfn >>= PAGE_SHIFT; + return 0; } +early_param("mem", parse_memopt); + +static int userdef __initdata; -void __init parse_memmapopt(char *p, char **from) +static int __init parse_memmap_opt(char *p) { + char *oldp; unsigned long long start_at, mem_size; - mem_size = memparse(p, from); - p = *from; + if (!strcmp(p, "exactmap")) { +#ifdef CONFIG_CRASH_DUMP + /* If we are doing a crash dump, we + * still need to know the real mem + * size before original memory map is + * reset. + */ + saved_max_pfn = e820_end_of_ram(); +#endif + end_pfn_map = 0; + e820.nr_map = 0; + userdef = 1; + return 0; + } + + oldp = p; + mem_size = memparse(p, &p); + if (p == oldp) + return -EINVAL; if (*p == '@') { - start_at = memparse(p+1, from); + start_at = memparse(p+1, &p); add_memory_region(start_at, mem_size, E820_RAM); } else if (*p == '#') { - start_at = memparse(p+1, from); + start_at = memparse(p+1, &p); add_memory_region(start_at, mem_size, E820_ACPI); } else if (*p == '$') { - start_at = memparse(p+1, from); + start_at = memparse(p+1, &p); add_memory_region(start_at, mem_size, E820_RESERVED); } else { end_user_pfn = (mem_size >> PAGE_SHIFT); } - p = *from; + return *p == '\0' ? 0 : -EINVAL; +} +early_param("memmap", parse_memmap_opt); + +void finish_e820_parsing(void) +{ + if (userdef) { + printk(KERN_INFO "user-defined physical RAM map:\n"); + e820_print_map("user"); + } } unsigned long pci_mem_start = 0xaeedbabe; diff --git a/arch/x86_64/kernel/early_printk.c b/arch/x86_64/kernel/early_printk.c index 140051e07fa6..e22ecd54870d 100644 --- a/arch/x86_64/kernel/early_printk.c +++ b/arch/x86_64/kernel/early_printk.c @@ -215,20 +215,16 @@ void early_printk(const char *fmt, ...) static int __initdata keep_early; -int __init setup_early_printk(char *opt) +static int __init setup_early_printk(char *buf) { - char *space; - char buf[256]; + if (!buf) + return 0; if (early_console_initialized) - return 1; - - strlcpy(buf,opt,sizeof(buf)); - space = strchr(buf, ' '); - if (space) - *space = 0; + return 0; + early_console_initialized = 1; - if (strstr(buf,"keep")) + if (!strcmp(buf,"keep")) keep_early = 1; if (!strncmp(buf, "serial", 6)) { @@ -248,11 +244,12 @@ int __init setup_early_printk(char *opt) early_console = &simnow_console; keep_early = 1; } - early_console_initialized = 1; register_console(early_console); return 0; } +early_param("earlyprintk", setup_early_printk); + void __init disable_early_printk(void) { if (!early_console_initialized || !early_console) @@ -266,4 +263,3 @@ void __init disable_early_printk(void) } } -__setup("earlyprintk=", setup_early_printk); diff --git a/arch/x86_64/kernel/head64.c b/arch/x86_64/kernel/head64.c index f2461fde9f8f..6716cbfc34ac 100644 --- a/arch/x86_64/kernel/head64.c +++ b/arch/x86_64/kernel/head64.c @@ -58,7 +58,6 @@ static void __init copy_bootdata(char *real_mode_data) void __init x86_64_start_kernel(char * real_mode_data) { - char *s; int i; for (i = 0; i < 256; i++) @@ -85,19 +84,5 @@ void __init x86_64_start_kernel(char * real_mode_data) #ifdef CONFIG_SMP cpu_set(0, cpu_online_map); #endif - s = strstr(saved_command_line, "earlyprintk="); - if (s != NULL) - setup_early_printk(strchr(s, '=') + 1); -#ifdef CONFIG_NUMA - s = strstr(saved_command_line, "numa="); - if (s != NULL) - numa_setup(s+5); -#endif - if (strstr(saved_command_line, "disableapic")) - disable_apic = 1; - /* You need early console to see that */ - if (__pa_symbol(&_end) >= KERNEL_TEXT_SIZE) - panic("Kernel too big for kernel mapping\n"); - start_kernel(); } diff --git a/arch/x86_64/kernel/io_apic.c b/arch/x86_64/kernel/io_apic.c index a1412042b918..afac3dbb3729 100644 --- a/arch/x86_64/kernel/io_apic.c +++ b/arch/x86_64/kernel/io_apic.c @@ -48,7 +48,7 @@ int sis_apic_bug; /* not actually supported, dummy for compile */ static int no_timer_check; -int disable_timer_pin_1 __initdata; +static int disable_timer_pin_1 __initdata; int timer_over_8254 __initdata = 0; @@ -253,18 +253,17 @@ int ioapic_force; static int __init disable_ioapic_setup(char *str) { skip_ioapic_setup = 1; - return 1; + return 0; } +early_param("noapic", disable_ioapic_setup); -static int __init enable_ioapic_setup(char *str) +/* Actually the next is obsolete, but keep it for paranoid reasons -AK */ +static int __init disable_timer_pin_setup(char *arg) { - ioapic_force = 1; - skip_ioapic_setup = 0; + disable_timer_pin_1 = 1; return 1; } - -__setup("noapic", disable_ioapic_setup); -__setup("apic", enable_ioapic_setup); +__setup("disable_timer_pin_1", disable_timer_pin_setup); static int __init setup_disable_8254_timer(char *s) { diff --git a/arch/x86_64/kernel/machine_kexec.c b/arch/x86_64/kernel/machine_kexec.c index 106076b370fc..2e94c072d84a 100644 --- a/arch/x86_64/kernel/machine_kexec.c +++ b/arch/x86_64/kernel/machine_kexec.c @@ -226,3 +226,31 @@ NORET_TYPE void machine_kexec(struct kimage *image) rnk = (relocate_new_kernel_t) control_code_buffer; (*rnk)(page_list, control_code_buffer, image->start, start_pgtable); } + +/* crashkernel=size@addr specifies the location to reserve for + * a crash kernel. By reserving this memory we guarantee + * that linux never set's it up as a DMA target. + * Useful for holding code to do something appropriate + * after a kernel panic. + */ +static int __init setup_crashkernel(char *arg) +{ + unsigned long size, base; + char *p; + if (!arg) + return -EINVAL; + size = memparse(arg, &p); + if (arg == p) + return -EINVAL; + if (*p == '@') { + base = memparse(p+1, &p); + /* FIXME: Do I want a sanity check to validate the + * memory range? Yes you do, but it's too early for + * e820 -AK */ + crashk_res.start = base; + crashk_res.end = base + size - 1; + } + return 0; +} +early_param("crashkernel", setup_crashkernel); + diff --git a/arch/x86_64/kernel/pci-dma.c b/arch/x86_64/kernel/pci-dma.c index 9c44f4f2433d..4dcb671bd19f 100644 --- a/arch/x86_64/kernel/pci-dma.c +++ b/arch/x86_64/kernel/pci-dma.c @@ -236,6 +236,9 @@ __init int iommu_setup(char *p) { iommu_merge = 1; + if (!p) + return -EINVAL; + while (*p) { if (!strncmp(p,"off",3)) no_iommu = 1; @@ -278,9 +281,9 @@ __init int iommu_setup(char *p) if (*p == ',') ++p; } - return 1; + return 0; } -__setup("iommu=", iommu_setup); +early_param("iommu", iommu_setup); void __init pci_iommu_alloc(void) { diff --git a/arch/x86_64/kernel/setup.c b/arch/x86_64/kernel/setup.c index 73f1cdd140fe..f55540a6084e 100644 --- a/arch/x86_64/kernel/setup.c +++ b/arch/x86_64/kernel/setup.c @@ -76,11 +76,6 @@ unsigned long mmu_cr4_features; int acpi_disabled; EXPORT_SYMBOL(acpi_disabled); -#ifdef CONFIG_ACPI -extern int __initdata acpi_ht; -extern acpi_interrupt_flags acpi_sci_flags; -int __initdata acpi_force = 0; -#endif int acpi_numa __initdata; @@ -276,183 +271,22 @@ static void __init probe_roms(void) } } -/* Check for full argument with no trailing characters */ -static int fullarg(char *p, char *arg) +#ifdef CONFIG_PROC_VMCORE +/* elfcorehdr= specifies the location of elf core header + * stored by the crashed kernel. This option will be passed + * by kexec loader to the capture kernel. + */ +static int __init setup_elfcorehdr(char *arg) { - int l = strlen(arg); - return !memcmp(p, arg, l) && (p[l] == 0 || isspace(p[l])); + char *end; + if (!arg) + return -EINVAL; + elfcorehdr_addr = memparse(arg, &end); + return end > arg ? 0 : -EINVAL; } - -static __init void parse_cmdline_early (char ** cmdline_p) -{ - char c = ' ', *to = command_line, *from = COMMAND_LINE; - int len = 0; - int userdef = 0; - - for (;;) { - if (c != ' ') - goto next_char; - -#ifdef CONFIG_SMP - /* - * If the BIOS enumerates physical processors before logical, - * maxcpus=N at enumeration-time can be used to disable HT. - */ - else if (!memcmp(from, "maxcpus=", 8)) { - extern unsigned int maxcpus; - - maxcpus = simple_strtoul(from + 8, NULL, 0); - } -#endif -#ifdef CONFIG_ACPI - /* "acpi=off" disables both ACPI table parsing and interpreter init */ - if (fullarg(from,"acpi=off")) - disable_acpi(); - - if (fullarg(from, "acpi=force")) { - /* add later when we do DMI horrors: */ - acpi_force = 1; - acpi_disabled = 0; - } - - /* acpi=ht just means: do ACPI MADT parsing - at bootup, but don't enable the full ACPI interpreter */ - if (fullarg(from, "acpi=ht")) { - if (!acpi_force) - disable_acpi(); - acpi_ht = 1; - } - else if (fullarg(from, "pci=noacpi")) - acpi_disable_pci(); - else if (fullarg(from, "acpi=noirq")) - acpi_noirq_set(); - - else if (fullarg(from, "acpi_sci=edge")) - acpi_sci_flags.trigger = 1; - else if (fullarg(from, "acpi_sci=level")) - acpi_sci_flags.trigger = 3; - else if (fullarg(from, "acpi_sci=high")) - acpi_sci_flags.polarity = 1; - else if (fullarg(from, "acpi_sci=low")) - acpi_sci_flags.polarity = 3; - - /* acpi=strict disables out-of-spec workarounds */ - else if (fullarg(from, "acpi=strict")) { - acpi_strict = 1; - } - else if (fullarg(from, "acpi_skip_timer_override")) - acpi_skip_timer_override = 1; +early_param("elfcorehdr", setup_elfcorehdr); #endif - if (fullarg(from, "disable_timer_pin_1")) - disable_timer_pin_1 = 1; - if (fullarg(from, "enable_timer_pin_1")) - disable_timer_pin_1 = -1; - - if (fullarg(from, "nolapic") || fullarg(from, "disableapic")) { - clear_bit(X86_FEATURE_APIC, boot_cpu_data.x86_capability); - disable_apic = 1; - } - - if (fullarg(from, "noapic")) - skip_ioapic_setup = 1; - - if (fullarg(from,"apic")) { - skip_ioapic_setup = 0; - ioapic_force = 1; - } - - if (!memcmp(from, "mem=", 4)) - parse_memopt(from+4, &from); - - if (!memcmp(from, "memmap=", 7)) { - /* exactmap option is for used defined memory */ - if (!memcmp(from+7, "exactmap", 8)) { -#ifdef CONFIG_CRASH_DUMP - /* If we are doing a crash dump, we - * still need to know the real mem - * size before original memory map is - * reset. - */ - saved_max_pfn = e820_end_of_ram(); -#endif - from += 8+7; - end_pfn_map = 0; - e820.nr_map = 0; - userdef = 1; - } - else { - parse_memmapopt(from+7, &from); - userdef = 1; - } - } - -#ifdef CONFIG_NUMA - if (!memcmp(from, "numa=", 5)) - numa_setup(from+5); -#endif - - if (!memcmp(from,"iommu=",6)) { - iommu_setup(from+6); - } - - if (fullarg(from,"oops=panic")) - panic_on_oops = 1; - - if (!memcmp(from, "noexec=", 7)) - nonx_setup(from + 7); - -#ifdef CONFIG_KEXEC - /* crashkernel=size@addr specifies the location to reserve for - * a crash kernel. By reserving this memory we guarantee - * that linux never set's it up as a DMA target. - * Useful for holding code to do something appropriate - * after a kernel panic. - */ - else if (!memcmp(from, "crashkernel=", 12)) { - unsigned long size, base; - size = memparse(from+12, &from); - if (*from == '@') { - base = memparse(from+1, &from); - /* FIXME: Do I want a sanity check - * to validate the memory range? - */ - crashk_res.start = base; - crashk_res.end = base + size - 1; - } - } -#endif - -#ifdef CONFIG_PROC_VMCORE - /* elfcorehdr= specifies the location of elf core header - * stored by the crashed kernel. This option will be passed - * by kexec loader to the capture kernel. - */ - else if(!memcmp(from, "elfcorehdr=", 11)) - elfcorehdr_addr = memparse(from+11, &from); -#endif - -#ifdef CONFIG_HOTPLUG_CPU - else if (!memcmp(from, "additional_cpus=", 16)) - setup_additional_cpus(from+16); -#endif - - next_char: - c = *(from++); - if (!c) - break; - if (COMMAND_LINE_SIZE <= ++len) - break; - *(to++) = c; - } - if (userdef) { - printk(KERN_INFO "user-defined physical RAM map:\n"); - e820_print_map("user"); - } - *to = '\0'; - *cmdline_p = command_line; -} - #ifndef CONFIG_NUMA static void __init contig_initmem_init(unsigned long start_pfn, unsigned long end_pfn) @@ -547,7 +381,12 @@ void __init setup_arch(char **cmdline_p) early_identify_cpu(&boot_cpu_data); - parse_cmdline_early(cmdline_p); + strlcpy(command_line, saved_command_line, COMMAND_LINE_SIZE); + *cmdline_p = command_line; + + parse_early_param(); + + finish_e820_parsing(); /* * partially used pages are not usable - thus diff --git a/arch/x86_64/kernel/setup64.c b/arch/x86_64/kernel/setup64.c index 417de564456e..646caa0a20bb 100644 --- a/arch/x86_64/kernel/setup64.c +++ b/arch/x86_64/kernel/setup64.c @@ -46,8 +46,10 @@ Control non executable mappings for 64bit processes. on Enable(default) off Disable */ -int __init nonx_setup(char *str) +static int __init nonx_setup(char *str) { + if (!str) + return -EINVAL; if (!strncmp(str, "on", 2)) { __supported_pte_mask |= _PAGE_NX; do_not_nx = 0; @@ -55,9 +57,9 @@ int __init nonx_setup(char *str) do_not_nx = 1; __supported_pte_mask &= ~_PAGE_NX; } - return 1; + return 0; } -__setup("noexec=", nonx_setup); /* parsed early actually */ +early_param("noexec", nonx_setup); int force_personality32 = 0; diff --git a/arch/x86_64/kernel/smpboot.c b/arch/x86_64/kernel/smpboot.c index ae7d6d84e352..0b9f28b05e7d 100644 --- a/arch/x86_64/kernel/smpboot.c +++ b/arch/x86_64/kernel/smpboot.c @@ -1270,11 +1270,11 @@ void __cpu_die(unsigned int cpu) printk(KERN_ERR "CPU %u didn't die...\n", cpu); } -__init int setup_additional_cpus(char *s) +static __init int setup_additional_cpus(char *s) { - return get_option(&s, &additional_cpus); + return s && get_option(&s, &additional_cpus) ? 0 : -EINVAL; } -__setup("additional_cpus=", setup_additional_cpus); +early_param("additional_cpus", setup_additional_cpus); #else /* ... !CONFIG_HOTPLUG_CPU */ diff --git a/arch/x86_64/kernel/traps.c b/arch/x86_64/kernel/traps.c index 56d7ff0c894c..9ec2b1d5893d 100644 --- a/arch/x86_64/kernel/traps.c +++ b/arch/x86_64/kernel/traps.c @@ -1119,24 +1119,30 @@ void __init trap_init(void) } -/* Actual parsing is done early in setup.c. */ -static int __init oops_dummy(char *s) +static int __init oops_setup(char *s) { - panic_on_oops = 1; - return 1; + if (!s) + return -EINVAL; + if (!strcmp(s, "panic")) + panic_on_oops = 1; + return 0; } -__setup("oops=", oops_dummy); +early_param("oops", oops_setup); static int __init kstack_setup(char *s) { + if (!s) + return -EINVAL; kstack_depth_to_print = simple_strtoul(s,NULL,0); - return 1; + return 0; } -__setup("kstack=", kstack_setup); +early_param("kstack", kstack_setup); #ifdef CONFIG_STACK_UNWIND static int __init call_trace_setup(char *s) { + if (!s) + return -EINVAL; if (strcmp(s, "old") == 0) call_trace = -1; else if (strcmp(s, "both") == 0) @@ -1145,7 +1151,7 @@ static int __init call_trace_setup(char *s) call_trace = 1; else if (strcmp(s, "new") == 0) call_trace = 2; - return 1; + return 0; } -__setup("call_trace=", call_trace_setup); +early_param("call_trace", call_trace_setup); #endif diff --git a/arch/x86_64/mm/numa.c b/arch/x86_64/mm/numa.c index b2fac14baac0..d64d6d93d04b 100644 --- a/arch/x86_64/mm/numa.c +++ b/arch/x86_64/mm/numa.c @@ -348,9 +348,10 @@ void __init paging_init(void) } } -/* [numa=off] */ -__init int numa_setup(char *opt) +static __init int numa_setup(char *opt) { + if (!opt) + return -EINVAL; if (!strncmp(opt,"off",3)) numa_off = 1; #ifdef CONFIG_NUMA_EMU @@ -366,9 +367,11 @@ __init int numa_setup(char *opt) if (!strncmp(opt,"hotadd=", 7)) hotadd_percent = simple_strtoul(opt+7, NULL, 10); #endif - return 1; + return 0; } +early_param("numa", numa_setup); + /* * Setup early cpu_to_node. * diff --git a/include/asm-x86_64/apic.h b/include/asm-x86_64/apic.h index 8ed0f4d67b8d..29ee735278f2 100644 --- a/include/asm-x86_64/apic.h +++ b/include/asm-x86_64/apic.h @@ -17,6 +17,7 @@ extern int apic_verbosity; extern int apic_runs_main_timer; +extern int ioapic_force; /* * Define the default level of output to be very little @@ -93,9 +94,6 @@ extern void setup_APIC_extened_lvt(unsigned char lvt_off, unsigned char vector, #define K8_APIC_EXT_INT_MSG_EXT 0x7 #define K8_APIC_EXT_LVT_ENTRY_THRESHOLD 0 -extern int disable_timer_pin_1; - - void smp_send_timer_broadcast_ipi(void); void switch_APIC_timer_to_ipi(void *cpumask); void switch_ipi_to_APIC_timer(void *cpumask); diff --git a/include/asm-x86_64/e820.h b/include/asm-x86_64/e820.h index 670a3388e70a..dba012151856 100644 --- a/include/asm-x86_64/e820.h +++ b/include/asm-x86_64/e820.h @@ -55,8 +55,7 @@ extern void e820_setup_gap(void); extern unsigned long e820_hole_size(unsigned long start_pfn, unsigned long end_pfn); -extern void __init parse_memopt(char *p, char **end); -extern void __init parse_memmapopt(char *p, char **end); +extern void finish_e820_parsing(void); extern struct e820map e820; diff --git a/include/asm-x86_64/pgtable.h b/include/asm-x86_64/pgtable.h index 0c1e2422400a..d79e7441b513 100644 --- a/include/asm-x86_64/pgtable.h +++ b/include/asm-x86_64/pgtable.h @@ -21,7 +21,6 @@ extern unsigned long __supported_pte_mask; #define swapper_pg_dir init_level4_pgt -extern int nonx_setup(char *str); extern void paging_init(void); extern void clear_kernel_mapping(unsigned long addr, unsigned long size); diff --git a/include/asm-x86_64/proto.h b/include/asm-x86_64/proto.h index 58fec91318e4..151826f8ce69 100644 --- a/include/asm-x86_64/proto.h +++ b/include/asm-x86_64/proto.h @@ -53,9 +53,6 @@ extern int nohpet; extern unsigned long vxtime_hz; extern void time_init_gtod(void); -extern int numa_setup(char *opt); - -extern int setup_early_printk(char *); extern void early_printk(const char *fmt, ...) __attribute__((format(printf,1,2))); extern void early_identify_cpu(struct cpuinfo_x86 *c); @@ -104,13 +101,7 @@ extern void select_idle_routine(const struct cpuinfo_x86 *c); extern unsigned long table_start, table_end; extern int exception_trace; -extern int using_apic_timer; -extern int disable_apic; extern unsigned cpu_khz; -extern int ioapic_force; -extern int skip_ioapic_setup; -extern int acpi_ht; -extern int acpi_disabled; extern void no_iommu_init(void); extern int force_iommu, no_iommu; @@ -132,7 +123,6 @@ extern int fix_aperture; extern int reboot_force; extern int notsc_setup(char *); -extern int setup_additional_cpus(char *); extern void smp_local_timer_interrupt(struct pt_regs * regs); -- cgit v1.2.3 From 91cd444e56ebe0c2acd9576a045d77490b26f607 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Tue, 26 Sep 2006 10:52:33 +0200 Subject: [PATCH] x86: Remove unneeded externs in acpi/boot.c And move one into proto.h Cc: len.brown@intel.com Signed-off-by: Andi Kleen --- arch/i386/kernel/acpi/boot.c | 3 --- include/asm-x86_64/proto.h | 2 ++ 2 files changed, 2 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/arch/i386/kernel/acpi/boot.c b/arch/i386/kernel/acpi/boot.c index f3761b98c8dd..c809a3f4c0bf 100644 --- a/arch/i386/kernel/acpi/boot.c +++ b/arch/i386/kernel/acpi/boot.c @@ -47,9 +47,6 @@ EXPORT_SYMBOL(acpi_disabled); #ifdef CONFIG_X86_64 -extern void __init clustered_apic_check(void); - -extern int gsi_irq_sharing(int gsi); #include static inline int acpi_madt_oem_check(char *oem_id, char *oem_table_id) { return 0; } diff --git a/include/asm-x86_64/proto.h b/include/asm-x86_64/proto.h index 151826f8ce69..b73d0c76613c 100644 --- a/include/asm-x86_64/proto.h +++ b/include/asm-x86_64/proto.h @@ -124,6 +124,8 @@ extern int fix_aperture; extern int reboot_force; extern int notsc_setup(char *); +extern int gsi_irq_sharing(int gsi); + extern void smp_local_timer_interrupt(struct pt_regs * regs); long do_arch_prctl(struct task_struct *task, int code, unsigned long addr); -- cgit v1.2.3 From 5a1b3999d6cb7ab87f1f3b1700bc91839fd6fa29 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Tue, 26 Sep 2006 10:52:34 +0200 Subject: [PATCH] x86: Some preparationary cleanup for stack trace - Remove unused all_contexts parameter No caller used it - Move skip argument into the structure (needed for followon patches) Cc: mingo@elte.hu Signed-off-by: Andi Kleen --- arch/i386/kernel/stacktrace.c | 11 +++-------- arch/s390/kernel/stacktrace.c | 17 ++++++++--------- arch/x86_64/kernel/stacktrace.c | 14 +++++--------- include/linux/stacktrace.h | 7 ++++--- kernel/lockdep.c | 5 ++++- 5 files changed, 24 insertions(+), 30 deletions(-) (limited to 'include') diff --git a/arch/i386/kernel/stacktrace.c b/arch/i386/kernel/stacktrace.c index e62a037ab399..ae3c32a87add 100644 --- a/arch/i386/kernel/stacktrace.c +++ b/arch/i386/kernel/stacktrace.c @@ -61,12 +61,8 @@ save_context_stack(struct stack_trace *trace, unsigned int skip, /* * Save stack-backtrace addresses into a stack_trace buffer. - * If all_contexts is set, all contexts (hardirq, softirq and process) - * are saved. If not set then only the current context is saved. */ -void save_stack_trace(struct stack_trace *trace, - struct task_struct *task, int all_contexts, - unsigned int skip) +void save_stack_trace(struct stack_trace *trace, struct task_struct *task) { unsigned long ebp; unsigned long *stack = &ebp; @@ -85,10 +81,9 @@ void save_stack_trace(struct stack_trace *trace, struct thread_info *context = (struct thread_info *) ((unsigned long)stack & (~(THREAD_SIZE - 1))); - ebp = save_context_stack(trace, skip, context, stack, ebp); + ebp = save_context_stack(trace, trace->skip, context, stack, ebp); stack = (unsigned long *)context->previous_esp; - if (!all_contexts || !stack || - trace->nr_entries >= trace->max_entries) + if (!stack || trace->nr_entries >= trace->max_entries) break; trace->entries[trace->nr_entries++] = ULONG_MAX; if (trace->nr_entries >= trace->max_entries) diff --git a/arch/s390/kernel/stacktrace.c b/arch/s390/kernel/stacktrace.c index de83f38288d0..d9428a0fc8fb 100644 --- a/arch/s390/kernel/stacktrace.c +++ b/arch/s390/kernel/stacktrace.c @@ -59,9 +59,7 @@ static inline unsigned long save_context_stack(struct stack_trace *trace, } } -void save_stack_trace(struct stack_trace *trace, - struct task_struct *task, int all_contexts, - unsigned int skip) +void save_stack_trace(struct stack_trace *trace, struct task_struct *task) { register unsigned long sp asm ("15"); unsigned long orig_sp; @@ -69,22 +67,23 @@ void save_stack_trace(struct stack_trace *trace, sp &= PSW_ADDR_INSN; orig_sp = sp; - sp = save_context_stack(trace, &skip, sp, + sp = save_context_stack(trace, &trace->skip, sp, S390_lowcore.panic_stack - PAGE_SIZE, S390_lowcore.panic_stack); - if ((sp != orig_sp) && !all_contexts) + if ((sp != orig_sp) && !trace->all_contexts) return; - sp = save_context_stack(trace, &skip, sp, + sp = save_context_stack(trace, &trace->skip, sp, S390_lowcore.async_stack - ASYNC_SIZE, S390_lowcore.async_stack); - if ((sp != orig_sp) && !all_contexts) + if ((sp != orig_sp) && !trace->all_contexts) return; if (task) - save_context_stack(trace, &skip, sp, + save_context_stack(trace, &trace->skip, sp, (unsigned long) task_stack_page(task), (unsigned long) task_stack_page(task) + THREAD_SIZE); else - save_context_stack(trace, &skip, sp, S390_lowcore.thread_info, + save_context_stack(trace, &trace->skip, sp, + S390_lowcore.thread_info, S390_lowcore.thread_info + THREAD_SIZE); return; } diff --git a/arch/x86_64/kernel/stacktrace.c b/arch/x86_64/kernel/stacktrace.c index 32cf55eb9af8..1c022af8fe1e 100644 --- a/arch/x86_64/kernel/stacktrace.c +++ b/arch/x86_64/kernel/stacktrace.c @@ -109,9 +109,10 @@ out_restore: * Save stack-backtrace addresses into a stack_trace buffer: */ static inline unsigned long -save_context_stack(struct stack_trace *trace, unsigned int skip, +save_context_stack(struct stack_trace *trace, unsigned long stack, unsigned long stack_end) { + int skip = trace->skip; unsigned long addr; #ifdef CONFIG_FRAME_POINTER @@ -159,12 +160,8 @@ save_context_stack(struct stack_trace *trace, unsigned int skip, /* * Save stack-backtrace addresses into a stack_trace buffer. - * If all_contexts is set, all contexts (hardirq, softirq and process) - * are saved. If not set then only the current context is saved. */ -void save_stack_trace(struct stack_trace *trace, - struct task_struct *task, int all_contexts, - unsigned int skip) +void save_stack_trace(struct stack_trace *trace, struct task_struct *task) { unsigned long stack = (unsigned long)&stack; int i, nr_stacks = 0, stacks_done[MAX_STACKS]; @@ -207,9 +204,8 @@ void save_stack_trace(struct stack_trace *trace, return; stacks_done[nr_stacks] = stack_end; - stack = save_context_stack(trace, skip, stack, stack_end); - if (!all_contexts || !stack || - trace->nr_entries >= trace->max_entries) + stack = save_context_stack(trace, stack, stack_end); + if (!stack || trace->nr_entries >= trace->max_entries) return; trace->entries[trace->nr_entries++] = ULONG_MAX; if (trace->nr_entries >= trace->max_entries) diff --git a/include/linux/stacktrace.h b/include/linux/stacktrace.h index 9cc81e572224..50e2b01e517c 100644 --- a/include/linux/stacktrace.h +++ b/include/linux/stacktrace.h @@ -5,15 +5,16 @@ struct stack_trace { unsigned int nr_entries, max_entries; unsigned long *entries; + int skip; /* input argument: How many entries to skip */ + int all_contexts; /* input argument: if true do than one stack */ }; extern void save_stack_trace(struct stack_trace *trace, - struct task_struct *task, int all_contexts, - unsigned int skip); + struct task_struct *task); extern void print_stack_trace(struct stack_trace *trace, int spaces); #else -# define save_stack_trace(trace, task, all, skip) do { } while (0) +# define save_stack_trace(trace, task) do { } while (0) # define print_stack_trace(trace) do { } while (0) #endif diff --git a/kernel/lockdep.c b/kernel/lockdep.c index 9bad17884513..900b4cb1a024 100644 --- a/kernel/lockdep.c +++ b/kernel/lockdep.c @@ -224,7 +224,10 @@ static int save_trace(struct stack_trace *trace) trace->max_entries = MAX_STACK_TRACE_ENTRIES - nr_stack_trace_entries; trace->entries = stack_trace + nr_stack_trace_entries; - save_stack_trace(trace, NULL, 0, 3); + trace->skip = 3; + trace->all_contexts = 0; + + save_stack_trace(trace, NULL); trace->max_entries = trace->nr_entries; -- cgit v1.2.3 From b7f5e3c7742d5332b78b831131f43fc3630e6322 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Tue, 26 Sep 2006 10:52:34 +0200 Subject: [PATCH] Don't access the APIC in safe_smp_processor_id when it is not mapped yet Lockdep can call the dwarf2 unwinder early, and the dwarf2 code uses safe_smp_processor_id which tries to access the local APIC page. But that doesn't work before the APIC code has set up its fixmap. Check for this case and always return boot cpu then. Cc: jbeulich@novell.com Cc: mingo@elte.hu Signed-off-by: Andi Kleen --- arch/x86_64/kernel/apic.c | 2 ++ arch/x86_64/kernel/smp.c | 2 +- include/asm-x86_64/apic.h | 1 + 3 files changed, 4 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/arch/x86_64/kernel/apic.c b/arch/x86_64/kernel/apic.c index b95d1e378b96..6472e321cad7 100644 --- a/arch/x86_64/kernel/apic.c +++ b/arch/x86_64/kernel/apic.c @@ -38,6 +38,7 @@ #include #include +int apic_mapped; int apic_verbosity; int apic_runs_main_timer; int apic_calibrate_pmtmr __initdata; @@ -600,6 +601,7 @@ void __init init_apic_mappings(void) apic_phys = mp_lapic_addr; set_fixmap_nocache(FIX_APIC_BASE, apic_phys); + apic_mapped = 1; apic_printk(APIC_VERBOSE,"mapped APIC to %16lx (%16lx)\n", APIC_BASE, apic_phys); /* diff --git a/arch/x86_64/kernel/smp.c b/arch/x86_64/kernel/smp.c index 06af6ca60129..2df988bbf312 100644 --- a/arch/x86_64/kernel/smp.c +++ b/arch/x86_64/kernel/smp.c @@ -526,7 +526,7 @@ int safe_smp_processor_id(void) { unsigned apicid, i; - if (disable_apic) + if (disable_apic || !apic_mapped) return 0; apicid = hard_smp_processor_id(); diff --git a/include/asm-x86_64/apic.h b/include/asm-x86_64/apic.h index 29ee735278f2..9e66d32330c9 100644 --- a/include/asm-x86_64/apic.h +++ b/include/asm-x86_64/apic.h @@ -18,6 +18,7 @@ extern int apic_verbosity; extern int apic_runs_main_timer; extern int ioapic_force; +extern int apic_mapped; /* * Define the default level of output to be very little -- cgit v1.2.3 From c0b766f13d8e1189ce4d00e54700c9d96b543b9a Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Tue, 26 Sep 2006 10:52:34 +0200 Subject: [PATCH] Merge stacktrace and show_trace This unifies the standard backtracer and the new stacktrace in memory backtracer. The standard one is converted to use callbacks and then reimplement stacktrace using new callbacks. The main advantage is that stacktrace can now use the new dwarf2 unwinder and avoid false positives in many cases. I kept it simple to make sure the standard backtracer stays reliable. Cc: mingo@elte.hu Signed-off-by: Andi Kleen --- arch/x86_64/kernel/stacktrace.c | 214 +++++----------------------------------- arch/x86_64/kernel/traps.c | 99 ++++++++++++++----- include/asm-x86_64/stacktrace.h | 18 ++++ 3 files changed, 120 insertions(+), 211 deletions(-) create mode 100644 include/asm-x86_64/stacktrace.h (limited to 'include') diff --git a/arch/x86_64/kernel/stacktrace.c b/arch/x86_64/kernel/stacktrace.c index 1c022af8fe1e..6026b31d037e 100644 --- a/arch/x86_64/kernel/stacktrace.c +++ b/arch/x86_64/kernel/stacktrace.c @@ -7,211 +7,49 @@ */ #include #include +#include +#include -#include - -static inline int -in_range(unsigned long start, unsigned long addr, unsigned long end) +static void save_stack_warning(void *data, char *msg) { - return addr >= start && addr <= end; } -static unsigned long -get_stack_end(struct task_struct *task, unsigned long stack) +static void +save_stack_warning_symbol(void *data, char *msg, unsigned long symbol) { - unsigned long stack_start, stack_end, flags; - int i, cpu; - - /* - * The most common case is that we are in the task stack: - */ - stack_start = (unsigned long)task->thread_info; - stack_end = stack_start + THREAD_SIZE; - - if (in_range(stack_start, stack, stack_end)) - return stack_end; - - /* - * We are in an interrupt if irqstackptr is set: - */ - raw_local_irq_save(flags); - cpu = safe_smp_processor_id(); - stack_end = (unsigned long)cpu_pda(cpu)->irqstackptr; - - if (stack_end) { - stack_start = stack_end & ~(IRQSTACKSIZE-1); - if (in_range(stack_start, stack, stack_end)) - goto out_restore; - /* - * We get here if we are in an IRQ context but we - * are also in an exception stack. - */ - } - - /* - * Iterate over all exception stacks, and figure out whether - * 'stack' is in one of them: - */ - for (i = 0; i < N_EXCEPTION_STACKS; i++) { - /* - * set 'end' to the end of the exception stack. - */ - stack_end = per_cpu(init_tss, cpu).ist[i]; - stack_start = stack_end - EXCEPTION_STKSZ; - - /* - * Is 'stack' above this exception frame's end? - * If yes then skip to the next frame. - */ - if (stack >= stack_end) - continue; - /* - * Is 'stack' above this exception frame's start address? - * If yes then we found the right frame. - */ - if (stack >= stack_start) - goto out_restore; - - /* - * If this is a debug stack, and if it has a larger size than - * the usual exception stacks, then 'stack' might still - * be within the lower portion of the debug stack: - */ -#if DEBUG_STKSZ > EXCEPTION_STKSZ - if (i == DEBUG_STACK - 1 && stack >= stack_end - DEBUG_STKSZ) { - /* - * Black magic. A large debug stack is composed of - * multiple exception stack entries, which we - * iterate through now. Dont look: - */ - do { - stack_end -= EXCEPTION_STKSZ; - stack_start -= EXCEPTION_STKSZ; - } while (stack < stack_start); - - goto out_restore; - } -#endif - } - /* - * Ok, 'stack' is not pointing to any of the system stacks. - */ - stack_end = 0; - -out_restore: - raw_local_irq_restore(flags); - - return stack_end; } - -/* - * Save stack-backtrace addresses into a stack_trace buffer: - */ -static inline unsigned long -save_context_stack(struct stack_trace *trace, - unsigned long stack, unsigned long stack_end) +static int save_stack_stack(void *data, char *name) { - int skip = trace->skip; - unsigned long addr; - -#ifdef CONFIG_FRAME_POINTER - unsigned long prev_stack = 0; + struct stack_trace *trace = (struct stack_trace *)data; + return trace->all_contexts ? 0 : -1; +} - while (in_range(prev_stack, stack, stack_end)) { - pr_debug("stack: %p\n", (void *)stack); - addr = (unsigned long)(((unsigned long *)stack)[1]); - pr_debug("addr: %p\n", (void *)addr); - if (!skip) - trace->entries[trace->nr_entries++] = addr-1; - else - skip--; - if (trace->nr_entries >= trace->max_entries) - break; - if (!addr) - return 0; - /* - * Stack frames must go forwards (otherwise a loop could - * happen if the stackframe is corrupted), so we move - * prev_stack forwards: - */ - prev_stack = stack; - stack = (unsigned long)(((unsigned long *)stack)[0]); - } - pr_debug("invalid: %p\n", (void *)stack); -#else - while (stack < stack_end) { - addr = ((unsigned long *)stack)[0]; - stack += sizeof(long); - if (__kernel_text_address(addr)) { - if (!skip) - trace->entries[trace->nr_entries++] = addr-1; - else - skip--; - if (trace->nr_entries >= trace->max_entries) - break; - } +static void save_stack_address(void *data, unsigned long addr) +{ + struct stack_trace *trace = (struct stack_trace *)data; + if (trace->skip > 0) { + trace->skip--; + return; } -#endif - return stack; + if (trace->nr_entries < trace->max_entries - 1) + trace->entries[trace->nr_entries++] = addr; } -#define MAX_STACKS 10 +static struct stacktrace_ops save_stack_ops = { + .warning = save_stack_warning, + .warning_symbol = save_stack_warning_symbol, + .stack = save_stack_stack, + .address = save_stack_address, +}; /* * Save stack-backtrace addresses into a stack_trace buffer. */ void save_stack_trace(struct stack_trace *trace, struct task_struct *task) { - unsigned long stack = (unsigned long)&stack; - int i, nr_stacks = 0, stacks_done[MAX_STACKS]; - - WARN_ON(trace->nr_entries || !trace->max_entries); - - if (!task) - task = current; - - pr_debug("task: %p, ti: %p\n", task, task->thread_info); - - if (!task || task == current) { - /* Grab rbp right from our regs: */ - asm ("mov %%rbp, %0" : "=r" (stack)); - pr_debug("rbp: %p\n", (void *)stack); - } else { - /* rbp is the last reg pushed by switch_to(): */ - stack = task->thread.rsp; - pr_debug("other task rsp: %p\n", (void *)stack); - stack = (unsigned long)(((unsigned long *)stack)[0]); - pr_debug("other task rbp: %p\n", (void *)stack); - } - - while (1) { - unsigned long stack_end = get_stack_end(task, stack); - - pr_debug("stack: %p\n", (void *)stack); - pr_debug("stack end: %p\n", (void *)stack_end); - - /* - * Invalid stack addres? - */ - if (!stack_end) - return; - /* - * Were we in this stack already? (recursion) - */ - for (i = 0; i < nr_stacks; i++) - if (stacks_done[i] == stack_end) - return; - stacks_done[nr_stacks] = stack_end; - - stack = save_context_stack(trace, stack, stack_end); - if (!stack || trace->nr_entries >= trace->max_entries) - return; - trace->entries[trace->nr_entries++] = ULONG_MAX; - if (trace->nr_entries >= trace->max_entries) - return; - if (++nr_stacks >= MAX_STACKS) - return; - } + dump_trace(task, NULL, NULL, &save_stack_ops, trace); + trace->entries[trace->nr_entries++] = ULONG_MAX; } +EXPORT_SYMBOL(save_stack_trace); diff --git a/arch/x86_64/kernel/traps.c b/arch/x86_64/kernel/traps.c index 9ec2b1d5893d..4ac18b02eada 100644 --- a/arch/x86_64/kernel/traps.c +++ b/arch/x86_64/kernel/traps.c @@ -45,6 +45,7 @@ #include #include #include +#include asmlinkage void divide_error(void); asmlinkage void debug(void); @@ -142,7 +143,7 @@ void printk_address(unsigned long address) #endif static unsigned long *in_exception_stack(unsigned cpu, unsigned long stack, - unsigned *usedp, const char **idp) + unsigned *usedp, char **idp) { static char ids[][8] = { [DEBUG_STACK - 1] = "#DB", @@ -234,13 +235,19 @@ static unsigned long *in_exception_stack(unsigned cpu, unsigned long stack, return NULL; } -static int show_trace_unwind(struct unwind_frame_info *info, void *context) +struct ops_and_data { + struct stacktrace_ops *ops; + void *data; +}; + +static int dump_trace_unwind(struct unwind_frame_info *info, void *context) { + struct ops_and_data *oad = (struct ops_and_data *)context; int n = 0; while (unwind(info) == 0 && UNW_PC(info)) { n++; - printk_address(UNW_PC(info)); + oad->ops->address(oad->data, UNW_PC(info)); if (arch_unw_user_mode(info)) break; } @@ -254,45 +261,51 @@ static int show_trace_unwind(struct unwind_frame_info *info, void *context) * severe exception (double fault, nmi, stack fault, debug, mce) hardware stack */ -void show_trace(struct task_struct *tsk, struct pt_regs *regs, unsigned long * stack) +void dump_trace(struct task_struct *tsk, struct pt_regs *regs, unsigned long * stack, + struct stacktrace_ops *ops, void *data) { const unsigned cpu = safe_smp_processor_id(); unsigned long *irqstack_end = (unsigned long *)cpu_pda(cpu)->irqstackptr; unsigned used = 0; - printk("\nCall Trace:\n"); - if (!tsk) tsk = current; if (call_trace >= 0) { int unw_ret = 0; struct unwind_frame_info info; + struct ops_and_data oad = { .ops = ops, .data = data }; if (regs) { if (unwind_init_frame_info(&info, tsk, regs) == 0) - unw_ret = show_trace_unwind(&info, NULL); + unw_ret = dump_trace_unwind(&info, &oad); } else if (tsk == current) - unw_ret = unwind_init_running(&info, show_trace_unwind, NULL); + unw_ret = unwind_init_running(&info, dump_trace_unwind, &oad); else { if (unwind_init_blocked(&info, tsk) == 0) - unw_ret = show_trace_unwind(&info, NULL); + unw_ret = dump_trace_unwind(&info, &oad); } if (unw_ret > 0) { if (call_trace == 1 && !arch_unw_user_mode(&info)) { - print_symbol("DWARF2 unwinder stuck at %s\n", + ops->warning_symbol(data, "DWARF2 unwinder stuck at %s\n", UNW_PC(&info)); if ((long)UNW_SP(&info) < 0) { - printk("Leftover inexact backtrace:\n"); + ops->warning(data, "Leftover inexact backtrace:\n"); stack = (unsigned long *)UNW_SP(&info); } else - printk("Full inexact backtrace again:\n"); + ops->warning(data, "Full inexact backtrace again:\n"); } else if (call_trace >= 1) return; else - printk("Full inexact backtrace again:\n"); + ops->warning(data, "Full inexact backtrace again:\n"); } else - printk("Inexact backtrace:\n"); + ops->warning(data, "Inexact backtrace:\n"); + } + if (!stack) { + unsigned long dummy; + stack = &dummy; + if (tsk && tsk != current) + stack = (unsigned long *)tsk->thread.rsp; } /* @@ -312,7 +325,7 @@ void show_trace(struct task_struct *tsk, struct pt_regs *regs, unsigned long * s * down the cause of the crash will be able to figure \ * out the call path that was taken. \ */ \ - printk_address(addr); \ + ops->address(data, addr); \ } \ } while (0) @@ -321,16 +334,17 @@ void show_trace(struct task_struct *tsk, struct pt_regs *regs, unsigned long * s * current stack address. If the stacks consist of nested * exceptions */ - for ( ; ; ) { - const char *id; + for (;;) { + char *id; unsigned long *estack_end; estack_end = in_exception_stack(cpu, (unsigned long)stack, &used, &id); if (estack_end) { - printk(" <%s>", id); + if (ops->stack(data, id) < 0) + break; HANDLE_STACK (stack < estack_end); - printk(" "); + ops->stack(data, ""); /* * We link to the next stack via the * second-to-last pointer (index -2 to end) in the @@ -345,7 +359,8 @@ void show_trace(struct task_struct *tsk, struct pt_regs *regs, unsigned long * s (IRQSTACKSIZE - 64) / sizeof(*irqstack); if (stack >= irqstack && stack < irqstack_end) { - printk(" "); + if (ops->stack(data, "IRQ") < 0) + break; HANDLE_STACK (stack < irqstack_end); /* * We link to the next stack (which would be @@ -354,7 +369,7 @@ void show_trace(struct task_struct *tsk, struct pt_regs *regs, unsigned long * s */ stack = (unsigned long *) (irqstack_end[-1]); irqstack_end = NULL; - printk(" "); + ops->stack(data, "EOI"); continue; } } @@ -362,15 +377,53 @@ void show_trace(struct task_struct *tsk, struct pt_regs *regs, unsigned long * s } /* - * This prints the process stack: + * This handles the process stack: */ HANDLE_STACK (((long) stack & (THREAD_SIZE-1)) != 0); #undef HANDLE_STACK +} +EXPORT_SYMBOL(dump_trace); +static void +print_trace_warning_symbol(void *data, char *msg, unsigned long symbol) +{ + print_symbol(msg, symbol); + printk("\n"); +} + +static void print_trace_warning(void *data, char *msg) +{ + printk("%s\n", msg); +} + +static int print_trace_stack(void *data, char *name) +{ + printk(" <%s> ", name); + return 0; +} + +static void print_trace_address(void *data, unsigned long addr) +{ + printk_address(addr); +} + +static struct stacktrace_ops print_trace_ops = { + .warning = print_trace_warning, + .warning_symbol = print_trace_warning_symbol, + .stack = print_trace_stack, + .address = print_trace_address, +}; + +void +show_trace(struct task_struct *tsk, struct pt_regs *regs, unsigned long *stack) +{ + printk("\nCall Trace:\n"); + dump_trace(tsk, regs, stack, &print_trace_ops, NULL); printk("\n"); } -static void _show_stack(struct task_struct *tsk, struct pt_regs *regs, unsigned long * rsp) +static void +_show_stack(struct task_struct *tsk, struct pt_regs *regs, unsigned long *rsp) { unsigned long *stack; int i; diff --git a/include/asm-x86_64/stacktrace.h b/include/asm-x86_64/stacktrace.h new file mode 100644 index 000000000000..5eb9799bef76 --- /dev/null +++ b/include/asm-x86_64/stacktrace.h @@ -0,0 +1,18 @@ +#ifndef _ASM_STACKTRACE_H +#define _ASM_STACKTRACE_H 1 + +/* Generic stack tracer with callbacks */ + +struct stacktrace_ops { + void (*warning)(void *data, char *msg); + /* msg must contain %s for the symbol */ + void (*warning_symbol)(void *data, char *msg, unsigned long symbol); + void (*address)(void *data, unsigned long address); + /* On negative return stop dumping */ + int (*stack)(void *data, char *name); +}; + +void dump_trace(struct task_struct *tsk, struct pt_regs *regs, unsigned long *stack, + struct stacktrace_ops *ops, void *data); + +#endif -- cgit v1.2.3 From 2b14a78cd07a52001b8c3865ed615d8b9b905b78 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Tue, 26 Sep 2006 10:52:34 +0200 Subject: [PATCH] i386: Do stacktracer conversion too Following x86-64 patches. Reuses code from them in fact. Convert the standard backtracer to do all output using callbacks. Use the x86-64 stack tracer implementation that uses these callbacks to implement the stacktrace interface. This allows to use the new dwarf2 unwinder for stacktrace and get better backtraces. Cc: mingo@elte.hu Signed-off-by: Andi Kleen --- arch/i386/kernel/Makefile | 1 + arch/i386/kernel/stacktrace.c | 93 ------------------------------------ arch/i386/kernel/traps.c | 108 +++++++++++++++++++++++++++++++----------- include/asm-i386/stacktrace.h | 1 + 4 files changed, 82 insertions(+), 121 deletions(-) delete mode 100644 arch/i386/kernel/stacktrace.c create mode 100644 include/asm-i386/stacktrace.h (limited to 'include') diff --git a/arch/i386/kernel/Makefile b/arch/i386/kernel/Makefile index dab497472deb..1a884b6e6e5c 100644 --- a/arch/i386/kernel/Makefile +++ b/arch/i386/kernel/Makefile @@ -81,4 +81,5 @@ $(obj)/vsyscall-syms.o: $(src)/vsyscall.lds \ $(call if_changed,syscall) k8-y += ../../x86_64/kernel/k8.o +stacktrace-y += ../../x86_64/kernel/stacktrace.o diff --git a/arch/i386/kernel/stacktrace.c b/arch/i386/kernel/stacktrace.c deleted file mode 100644 index ae3c32a87add..000000000000 --- a/arch/i386/kernel/stacktrace.c +++ /dev/null @@ -1,93 +0,0 @@ -/* - * arch/i386/kernel/stacktrace.c - * - * Stack trace management functions - * - * Copyright (C) 2006 Red Hat, Inc., Ingo Molnar - */ -#include -#include - -static inline int valid_stack_ptr(struct thread_info *tinfo, void *p) -{ - return p > (void *)tinfo && - p < (void *)tinfo + THREAD_SIZE - 3; -} - -/* - * Save stack-backtrace addresses into a stack_trace buffer: - */ -static inline unsigned long -save_context_stack(struct stack_trace *trace, unsigned int skip, - struct thread_info *tinfo, unsigned long *stack, - unsigned long ebp) -{ - unsigned long addr; - -#ifdef CONFIG_FRAME_POINTER - while (valid_stack_ptr(tinfo, (void *)ebp)) { - addr = *(unsigned long *)(ebp + 4); - if (!skip) - trace->entries[trace->nr_entries++] = addr; - else - skip--; - if (trace->nr_entries >= trace->max_entries) - break; - /* - * break out of recursive entries (such as - * end_of_stack_stop_unwind_function): - */ - if (ebp == *(unsigned long *)ebp) - break; - - ebp = *(unsigned long *)ebp; - } -#else - while (valid_stack_ptr(tinfo, stack)) { - addr = *stack++; - if (__kernel_text_address(addr)) { - if (!skip) - trace->entries[trace->nr_entries++] = addr; - else - skip--; - if (trace->nr_entries >= trace->max_entries) - break; - } - } -#endif - - return ebp; -} - -/* - * Save stack-backtrace addresses into a stack_trace buffer. - */ -void save_stack_trace(struct stack_trace *trace, struct task_struct *task) -{ - unsigned long ebp; - unsigned long *stack = &ebp; - - WARN_ON(trace->nr_entries || !trace->max_entries); - - if (!task || task == current) { - /* Grab ebp right from our regs: */ - asm ("movl %%ebp, %0" : "=r" (ebp)); - } else { - /* ebp is the last reg pushed by switch_to(): */ - ebp = *(unsigned long *) task->thread.esp; - } - - while (1) { - struct thread_info *context = (struct thread_info *) - ((unsigned long)stack & (~(THREAD_SIZE - 1))); - - ebp = save_context_stack(trace, trace->skip, context, stack, ebp); - stack = (unsigned long *)context->previous_esp; - if (!stack || trace->nr_entries >= trace->max_entries) - break; - trace->entries[trace->nr_entries++] = ULONG_MAX; - if (trace->nr_entries >= trace->max_entries) - break; - } -} - diff --git a/arch/i386/kernel/traps.c b/arch/i386/kernel/traps.c index 3c85c89f68d8..4ced4285163b 100644 --- a/arch/i386/kernel/traps.c +++ b/arch/i386/kernel/traps.c @@ -51,6 +51,7 @@ #include #include #include +#include #include @@ -118,26 +119,16 @@ static inline int valid_stack_ptr(struct thread_info *tinfo, void *p) p < (void *)tinfo + THREAD_SIZE - 3; } -/* - * Print one address/symbol entries per line. - */ -static inline void print_addr_and_symbol(unsigned long addr, char *log_lvl) -{ - printk(" [<%08lx>] ", addr); - - print_symbol("%s\n", addr); -} - static inline unsigned long print_context_stack(struct thread_info *tinfo, unsigned long *stack, unsigned long ebp, - char *log_lvl) + struct stacktrace_ops *ops, void *data) { unsigned long addr; #ifdef CONFIG_FRAME_POINTER while (valid_stack_ptr(tinfo, (void *)ebp)) { addr = *(unsigned long *)(ebp + 4); - print_addr_and_symbol(addr, log_lvl); + ops->address(data, addr); /* * break out of recursive entries (such as * end_of_stack_stop_unwind_function): @@ -150,28 +141,35 @@ static inline unsigned long print_context_stack(struct thread_info *tinfo, while (valid_stack_ptr(tinfo, stack)) { addr = *stack++; if (__kernel_text_address(addr)) - print_addr_and_symbol(addr, log_lvl); + ops->address(data, addr); } #endif return ebp; } +struct ops_and_data { + struct stacktrace_ops *ops; + void *data; +}; + static asmlinkage int -show_trace_unwind(struct unwind_frame_info *info, void *log_lvl) +dump_trace_unwind(struct unwind_frame_info *info, void *data) { + struct ops_and_data *oad = (struct ops_and_data *)data; int n = 0; while (unwind(info) == 0 && UNW_PC(info)) { n++; - print_addr_and_symbol(UNW_PC(info), log_lvl); + oad->ops->address(oad->data, UNW_PC(info)); if (arch_unw_user_mode(info)) break; } return n; } -static void show_trace_log_lvl(struct task_struct *task, struct pt_regs *regs, - unsigned long *stack, char *log_lvl) +void dump_trace(struct task_struct *task, struct pt_regs *regs, + unsigned long *stack, + struct stacktrace_ops *ops, void *data) { unsigned long ebp; @@ -181,31 +179,37 @@ static void show_trace_log_lvl(struct task_struct *task, struct pt_regs *regs, if (call_trace >= 0) { int unw_ret = 0; struct unwind_frame_info info; + struct ops_and_data oad = { .ops = ops, .data = data }; if (regs) { if (unwind_init_frame_info(&info, task, regs) == 0) - unw_ret = show_trace_unwind(&info, log_lvl); + unw_ret = dump_trace_unwind(&info, &oad); } else if (task == current) - unw_ret = unwind_init_running(&info, show_trace_unwind, log_lvl); + unw_ret = unwind_init_running(&info, dump_trace_unwind, &oad); else { if (unwind_init_blocked(&info, task) == 0) - unw_ret = show_trace_unwind(&info, log_lvl); + unw_ret = dump_trace_unwind(&info, &oad); } if (unw_ret > 0) { if (call_trace == 1 && !arch_unw_user_mode(&info)) { - print_symbol("DWARF2 unwinder stuck at %s\n", + ops->warning_symbol(data, "DWARF2 unwinder stuck at %s\n", UNW_PC(&info)); if (UNW_SP(&info) >= PAGE_OFFSET) { - printk("Leftover inexact backtrace:\n"); + ops->warning(data, "Leftover inexact backtrace:\n"); stack = (void *)UNW_SP(&info); } else - printk("Full inexact backtrace again:\n"); + ops->warning(data, "Full inexact backtrace again:\n"); } else if (call_trace >= 1) return; else - printk("Full inexact backtrace again:\n"); + ops->warning(data, "Full inexact backtrace again:\n"); } else - printk("Inexact backtrace:\n"); + ops->warning(data, "Inexact backtrace:\n"); + } else if (!stack) { + unsigned long dummy; + stack = &dummy; + if (task && task != current) + stack = (unsigned long *)task->thread.esp; } if (task == current) { @@ -220,15 +224,63 @@ static void show_trace_log_lvl(struct task_struct *task, struct pt_regs *regs, struct thread_info *context; context = (struct thread_info *) ((unsigned long)stack & (~(THREAD_SIZE - 1))); - ebp = print_context_stack(context, stack, ebp, log_lvl); + ebp = print_context_stack(context, stack, ebp, ops, data); + /* Should be after the line below, but somewhere + in early boot context comes out corrupted and we + can't reference it -AK */ + if (ops->stack(data, "IRQ") < 0) + break; stack = (unsigned long*)context->previous_esp; if (!stack) break; - printk("%s =======================\n", log_lvl); } } +EXPORT_SYMBOL(dump_trace); + +static void +print_trace_warning_symbol(void *data, char *msg, unsigned long symbol) +{ + printk(data); + print_symbol(msg, symbol); + printk("\n"); +} + +static void print_trace_warning(void *data, char *msg) +{ + printk("%s%s\n", (char *)data, msg); +} + +static int print_trace_stack(void *data, char *name) +{ + return 0; +} + +/* + * Print one address/symbol entries per line. + */ +static void print_trace_address(void *data, unsigned long addr) +{ + printk("%s [<%08lx>] ", (char *)data, addr); + print_symbol("%s\n", addr); +} + +static struct stacktrace_ops print_trace_ops = { + .warning = print_trace_warning, + .warning_symbol = print_trace_warning_symbol, + .stack = print_trace_stack, + .address = print_trace_address, +}; + +static void +show_trace_log_lvl(struct task_struct *task, struct pt_regs *regs, + unsigned long * stack, char *log_lvl) +{ + dump_trace(task, regs, stack, &print_trace_ops, log_lvl); + printk("%s =======================\n", log_lvl); +} -void show_trace(struct task_struct *task, struct pt_regs *regs, unsigned long * stack) +void show_trace(struct task_struct *task, struct pt_regs *regs, + unsigned long * stack) { show_trace_log_lvl(task, regs, stack, ""); } diff --git a/include/asm-i386/stacktrace.h b/include/asm-i386/stacktrace.h new file mode 100644 index 000000000000..7d1f6a5cbfca --- /dev/null +++ b/include/asm-i386/stacktrace.h @@ -0,0 +1 @@ +#include -- cgit v1.2.3 From a32cf3975bed3b84491f8ffeb24abe8c45d86ab0 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Tue, 26 Sep 2006 10:52:34 +0200 Subject: [PATCH] i386: Get ebp from unwinder state when continuing fallback backtrace Cc: jbeulich@novell.com Signed-off-by: Andi Kleen --- arch/i386/kernel/traps.c | 22 ++++++++++++++-------- include/asm-i386/unwind.h | 3 +++ 2 files changed, 17 insertions(+), 8 deletions(-) (limited to 'include') diff --git a/arch/i386/kernel/traps.c b/arch/i386/kernel/traps.c index 86fa7e47f301..bdf949c30c7c 100644 --- a/arch/i386/kernel/traps.c +++ b/arch/i386/kernel/traps.c @@ -171,7 +171,7 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs, unsigned long *stack, struct stacktrace_ops *ops, void *data) { - unsigned long ebp; + unsigned long ebp = 0; if (!task) task = current; @@ -199,6 +199,7 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs, stack = (void *)UNW_SP(&info); if (!stack) return; + ebp = UNW_FP(&info); } else ops->warning(data, "Full inexact backtrace again:\n"); } else if (call_trace >= 1) @@ -207,20 +208,25 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs, ops->warning(data, "Full inexact backtrace again:\n"); } else ops->warning(data, "Inexact backtrace:\n"); - } else if (!stack) { + } + if (!stack) { unsigned long dummy; stack = &dummy; if (task && task != current) stack = (unsigned long *)task->thread.esp; } - if (task == current) { - /* Grab ebp right from our regs */ - asm ("movl %%ebp, %0" : "=r" (ebp) : ); - } else { - /* ebp is the last reg pushed by switch_to */ - ebp = *(unsigned long *) task->thread.esp; +#ifdef CONFIG_FRAME_POINTER + if (!ebp) { + if (task == current) { + /* Grab ebp right from our regs */ + asm ("movl %%ebp, %0" : "=r" (ebp) : ); + } else { + /* ebp is the last reg pushed by switch_to */ + ebp = *(unsigned long *) task->thread.esp; + } } +#endif while (1) { struct thread_info *context; diff --git a/include/asm-i386/unwind.h b/include/asm-i386/unwind.h index 4c1a0b968569..f0ac399bae3c 100644 --- a/include/asm-i386/unwind.h +++ b/include/asm-i386/unwind.h @@ -28,6 +28,8 @@ struct unwind_frame_info #define FRAME_LINK_OFFSET 0 #define STACK_BOTTOM(tsk) STACK_LIMIT((tsk)->thread.esp0) #define STACK_TOP(tsk) ((tsk)->thread.esp0) +#else +#define UNW_FP(frame) ((void)(frame), 0) #endif #define STACK_LIMIT(ptr) (((ptr) - 1) & ~(THREAD_SIZE - 1)) @@ -88,6 +90,7 @@ static inline int arch_unw_user_mode(const struct unwind_frame_info *info) #define UNW_PC(frame) ((void)(frame), 0) #define UNW_SP(frame) ((void)(frame), 0) +#define UNW_FP(frame) ((void)(frame), 0) static inline int arch_unw_user_mode(const void *info) { -- cgit v1.2.3 From d28c4393a7bf558538e9def269c1caeab6ec056f Mon Sep 17 00:00:00 2001 From: "Prasanna S.P" Date: Tue, 26 Sep 2006 10:52:34 +0200 Subject: [PATCH] x86: error_code is not safe for kprobes This patch moves the entry.S:error_entry to .kprobes.text section, since code marked unsafe for kprobes jumps directly to entry.S::error_entry, that must be marked unsafe as well. This patch also moves all the ".previous.text" asm directives to ".previous" for kprobes section. AK: Following a similar i386 patch from Chuck Ebbert AK: Also merged Jeremy's fix in. +From: Jeremy Fitzhardinge KPROBE_ENTRY does a .section .kprobes.text, and expects its users to do a .previous at the end of the function. Unfortunately, if any code within the function switches sections, for example .fixup, then the .previous ends up putting all subsequent code into .fixup. Worse, any subsequent .fixup code gets intermingled with the code its supposed to be fixing (which is also in .fixup). It's surprising this didn't cause more havok. The fix is to use .pushsection/.popsection, so this stuff nests properly. A further cleanup would be to get rid of all .section/.previous pairs, since they're inherently fragile. +From: Chuck Ebbert <76306.1226@compuserve.com> Because code marked unsafe for kprobes jumps directly to entry.S::error_code, that must be marked unsafe as well. The easiest way to do that is to move the page fault entry point to just before error_code and let it inherit the same section. Also moved all the ".previous" asm directives for kprobes sections to column 1 and removed ".text" from them. Signed-off-by: Chuck Ebbert <76306.1226@compuserve.com> Signed-off-by: Andi Kleen --- arch/i386/kernel/entry.S | 25 +++++++++++++------------ arch/x86_64/kernel/entry.S | 19 +++++++------------ include/linux/linkage.h | 6 +++++- 3 files changed, 25 insertions(+), 25 deletions(-) (limited to 'include') diff --git a/arch/i386/kernel/entry.S b/arch/i386/kernel/entry.S index 87f9f60b803b..ba22ec8fab54 100644 --- a/arch/i386/kernel/entry.S +++ b/arch/i386/kernel/entry.S @@ -591,11 +591,9 @@ ENTRY(name) \ /* The include is where all of the SMP etc. interrupts come from */ #include "entry_arch.h" -ENTRY(divide_error) - RING0_INT_FRAME - pushl $0 # no error code - CFI_ADJUST_CFA_OFFSET 4 - pushl $do_divide_error +KPROBE_ENTRY(page_fault) + RING0_EC_FRAME + pushl $do_page_fault CFI_ADJUST_CFA_OFFSET 4 ALIGN error_code: @@ -645,6 +643,7 @@ error_code: call *%edi jmp ret_from_exception CFI_ENDPROC +KPROBE_END(page_fault) ENTRY(coprocessor_error) RING0_INT_FRAME @@ -720,7 +719,8 @@ debug_stack_correct: call do_debug jmp ret_from_exception CFI_ENDPROC - .previous .text +KPROBE_END(debug) + /* * NMI is doubly nasty. It can happen _while_ we're handling * a debug fault, and the debug fault hasn't yet been able to @@ -816,7 +816,7 @@ KPROBE_ENTRY(int3) call do_int3 jmp ret_from_exception CFI_ENDPROC - .previous .text +KPROBE_END(int3) ENTRY(overflow) RING0_INT_FRAME @@ -881,7 +881,7 @@ KPROBE_ENTRY(general_protection) CFI_ADJUST_CFA_OFFSET 4 jmp error_code CFI_ENDPROC - .previous .text +KPROBE_END(general_protection) ENTRY(alignment_check) RING0_EC_FRAME @@ -890,13 +890,14 @@ ENTRY(alignment_check) jmp error_code CFI_ENDPROC -KPROBE_ENTRY(page_fault) - RING0_EC_FRAME - pushl $do_page_fault +ENTRY(divide_error) + RING0_INT_FRAME + pushl $0 # no error code + CFI_ADJUST_CFA_OFFSET 4 + pushl $do_divide_error CFI_ADJUST_CFA_OFFSET 4 jmp error_code CFI_ENDPROC - .previous .text #ifdef CONFIG_X86_MCE ENTRY(machine_check) diff --git a/arch/x86_64/kernel/entry.S b/arch/x86_64/kernel/entry.S index 2092f565aa87..780f9b26169f 100644 --- a/arch/x86_64/kernel/entry.S +++ b/arch/x86_64/kernel/entry.S @@ -819,7 +819,7 @@ paranoid_schedule\trace: * Exception entry point. This expects an error code/orig_rax on the stack * and the exception handler in %rax. */ -ENTRY(error_entry) +KPROBE_ENTRY(error_entry) _frame RDI /* rdi slot contains rax, oldrax contains error code */ cld @@ -903,7 +903,7 @@ error_kernelspace: cmpq $gs_change,RIP(%rsp) je error_swapgs jmp error_sti -END(error_entry) +KPROBE_END(error_entry) /* Reload gs selector with exception handling */ /* edi: new selector */ @@ -1025,8 +1025,7 @@ ENDPROC(execve) KPROBE_ENTRY(page_fault) errorentry do_page_fault -END(page_fault) - .previous .text +KPROBE_END(page_fault) ENTRY(coprocessor_error) zeroentry do_coprocessor_error @@ -1047,8 +1046,7 @@ KPROBE_ENTRY(debug) CFI_ADJUST_CFA_OFFSET 8 paranoidentry do_debug, DEBUG_STACK paranoidexit -END(debug) - .previous .text +KPROBE_END(debug) /* runs on exception stack */ KPROBE_ENTRY(nmi) @@ -1062,8 +1060,7 @@ KPROBE_ENTRY(nmi) jmp paranoid_exit1 CFI_ENDPROC #endif -END(nmi) - .previous .text +KPROBE_END(nmi) KPROBE_ENTRY(int3) INTR_FRAME @@ -1072,8 +1069,7 @@ KPROBE_ENTRY(int3) paranoidentry do_int3, DEBUG_STACK jmp paranoid_exit1 CFI_ENDPROC -END(int3) - .previous .text +KPROBE_END(int3) ENTRY(overflow) zeroentry do_overflow @@ -1121,8 +1117,7 @@ END(stack_segment) KPROBE_ENTRY(general_protection) errorentry do_general_protection -END(general_protection) - .previous .text +KPROBE_END(general_protection) ENTRY(alignment_check) errorentry do_alignment_check diff --git a/include/linux/linkage.h b/include/linux/linkage.h index 932021f872d5..6c9873f88287 100644 --- a/include/linux/linkage.h +++ b/include/linux/linkage.h @@ -35,9 +35,13 @@ #endif #define KPROBE_ENTRY(name) \ - .section .kprobes.text, "ax"; \ + .pushsection .kprobes.text, "ax"; \ ENTRY(name) +#define KPROBE_END(name) \ + END(name); \ + .popsection + #ifndef END #define END(name) \ .size name, .-name -- cgit v1.2.3 From 3d08a256da8aed5300bd0752200ece426f49b050 Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Tue, 26 Sep 2006 10:52:35 +0200 Subject: [PATCH] i386: Make enable_local_apic static enable_local_apic can now become static. Cc: len.brown@intel.com Signed-off-by: Adrian Bunk Signed-off-by: Andi Kleen --- arch/i386/kernel/apic.c | 13 ++++++++++++- include/asm-i386/apic.h | 12 ------------ 2 files changed, 12 insertions(+), 13 deletions(-) (limited to 'include') diff --git a/arch/i386/kernel/apic.c b/arch/i386/kernel/apic.c index ce75e71b694f..90faae5c5d30 100644 --- a/arch/i386/kernel/apic.c +++ b/arch/i386/kernel/apic.c @@ -52,7 +52,18 @@ static cpumask_t timer_bcast_ipi; /* * Knob to control our willingness to enable the local APIC. */ -int enable_local_apic __initdata = 0; /* -1=force-disable, +1=force-enable */ +static int enable_local_apic __initdata = 0; /* -1=force-disable, +1=force-enable */ + +static inline void lapic_disable(void) +{ + enable_local_apic = -1; + clear_bit(X86_FEATURE_APIC, boot_cpu_data.x86_capability); +} + +static inline void lapic_enable(void) +{ + enable_local_apic = 1; +} /* * Debug level diff --git a/include/asm-i386/apic.h b/include/asm-i386/apic.h index 8c5331ceca7b..3a42b7d6fc92 100644 --- a/include/asm-i386/apic.h +++ b/include/asm-i386/apic.h @@ -16,20 +16,8 @@ #define APIC_VERBOSE 1 #define APIC_DEBUG 2 -extern int enable_local_apic; extern int apic_verbosity; -static inline void lapic_disable(void) -{ - enable_local_apic = -1; - clear_bit(X86_FEATURE_APIC, boot_cpu_data.x86_capability); -} - -static inline void lapic_enable(void) -{ - enable_local_apic = 1; -} - /* * Define the default level of output to be very little * This can be turned up by using apic=verbose for more -- cgit v1.2.3 From 522e93e3fcdbf00ba85c72fde6df28cfc0486a65 Mon Sep 17 00:00:00 2001 From: Rusty Russell Date: Tue, 26 Sep 2006 10:52:35 +0200 Subject: [PATCH] i386: Descriptor and trap table cleanups. The implementation comes from Zach's [RFC, PATCH 10/24] i386 Vmi descriptor changes: Descriptor and trap table cleanups. Add cleanly written accessors for IDT and GDT gates so the subarch may override them. Note that this allows the hypervisor to transparently tweak the DPL of the descriptors as well as the RPL of segments in those descriptors, with no unnecessary kernel code modification. It also allows the hypervisor implementation of the VMI to tweak the gates, allowing for custom exception frames or extra layers of indirection above the guest fault / IRQ handlers. Signed-off-by: Zachary Amsden Signed-off-by: Rusty Russell Signed-off-by: Andi Kleen --- arch/i386/kernel/traps.c | 24 ++-------- include/asm-i386/desc.h | 121 +++++++++++++++++++++++++++++------------------ 2 files changed, 81 insertions(+), 64 deletions(-) (limited to 'include') diff --git a/arch/i386/kernel/traps.c b/arch/i386/kernel/traps.c index bdf949c30c7c..00d643f3de41 100644 --- a/arch/i386/kernel/traps.c +++ b/arch/i386/kernel/traps.c @@ -1165,20 +1165,6 @@ void __init trap_init_f00f_bug(void) } #endif -#define _set_gate(gate_addr,type,dpl,addr,seg) \ -do { \ - int __d0, __d1; \ - __asm__ __volatile__ ("movw %%dx,%%ax\n\t" \ - "movw %4,%%dx\n\t" \ - "movl %%eax,%0\n\t" \ - "movl %%edx,%1" \ - :"=m" (*((long *) (gate_addr))), \ - "=m" (*(1+(long *) (gate_addr))), "=&a" (__d0), "=&d" (__d1) \ - :"i" ((short) (0x8000+(dpl<<13)+(type<<8))), \ - "3" ((char *) (addr)),"2" ((seg) << 16)); \ -} while (0) - - /* * This needs to use 'idt_table' rather than 'idt', and * thus use the _nonmapped_ version of the IDT, as the @@ -1187,7 +1173,7 @@ do { \ */ void set_intr_gate(unsigned int n, void *addr) { - _set_gate(idt_table+n,14,0,addr,__KERNEL_CS); + _set_gate(n, DESCTYPE_INT, addr, __KERNEL_CS); } /* @@ -1195,22 +1181,22 @@ void set_intr_gate(unsigned int n, void *addr) */ static inline void set_system_intr_gate(unsigned int n, void *addr) { - _set_gate(idt_table+n, 14, 3, addr, __KERNEL_CS); + _set_gate(n, DESCTYPE_INT | DESCTYPE_DPL3, addr, __KERNEL_CS); } static void __init set_trap_gate(unsigned int n, void *addr) { - _set_gate(idt_table+n,15,0,addr,__KERNEL_CS); + _set_gate(n, DESCTYPE_TRAP, addr, __KERNEL_CS); } static void __init set_system_gate(unsigned int n, void *addr) { - _set_gate(idt_table+n,15,3,addr,__KERNEL_CS); + _set_gate(n, DESCTYPE_TRAP | DESCTYPE_DPL3, addr, __KERNEL_CS); } static void __init set_task_gate(unsigned int n, unsigned int gdt_entry) { - _set_gate(idt_table+n,5,0,0,(gdt_entry<<3)); + _set_gate(n, DESCTYPE_TASK, (void *)0, (gdt_entry<<3)); } diff --git a/include/asm-i386/desc.h b/include/asm-i386/desc.h index 89b8b82c82b3..5db9e96e8dc1 100644 --- a/include/asm-i386/desc.h +++ b/include/asm-i386/desc.h @@ -33,50 +33,99 @@ static inline struct desc_struct *get_cpu_gdt_table(unsigned int cpu) return (struct desc_struct *)per_cpu(cpu_gdt_descr, cpu).address; } +/* + * This is the ldt that every process will get unless we need + * something other than this. + */ +extern struct desc_struct default_ldt[]; +extern struct desc_struct idt_table[]; +extern void set_intr_gate(unsigned int irq, void * addr); + +static inline void pack_descriptor(__u32 *a, __u32 *b, + unsigned long base, unsigned long limit, unsigned char type, unsigned char flags) +{ + *a = ((base & 0xffff) << 16) | (limit & 0xffff); + *b = (base & 0xff000000) | ((base & 0xff0000) >> 16) | + ((type & 0xff) << 8) | ((flags & 0xf) << 12); +} + +static inline void pack_gate(__u32 *a, __u32 *b, + unsigned long base, unsigned short seg, unsigned char type, unsigned char flags) +{ + *a = (seg << 16) | (base & 0xffff); + *b = (base & 0xffff0000) | ((type & 0xff) << 8) | (flags & 0xff); +} + +#define DESCTYPE_LDT 0x82 /* present, system, DPL-0, LDT */ +#define DESCTYPE_TSS 0x89 /* present, system, DPL-0, 32-bit TSS */ +#define DESCTYPE_TASK 0x85 /* present, system, DPL-0, task gate */ +#define DESCTYPE_INT 0x8e /* present, system, DPL-0, interrupt gate */ +#define DESCTYPE_TRAP 0x8f /* present, system, DPL-0, trap gate */ +#define DESCTYPE_DPL3 0x60 /* DPL-3 */ +#define DESCTYPE_S 0x10 /* !system */ + #define load_TR_desc() __asm__ __volatile__("ltr %w0"::"q" (GDT_ENTRY_TSS*8)) #define load_LDT_desc() __asm__ __volatile__("lldt %w0"::"q" (GDT_ENTRY_LDT*8)) #define load_gdt(dtr) __asm__ __volatile("lgdt %0"::"m" (*dtr)) #define load_idt(dtr) __asm__ __volatile("lidt %0"::"m" (*dtr)) -#define load_tr(tr) __asm__ __volatile("ltr %0"::"mr" (tr)) -#define load_ldt(ldt) __asm__ __volatile("lldt %0"::"mr" (ldt)) +#define load_tr(tr) __asm__ __volatile("ltr %0"::"m" (tr)) +#define load_ldt(ldt) __asm__ __volatile("lldt %0"::"m" (ldt)) #define store_gdt(dtr) __asm__ ("sgdt %0":"=m" (*dtr)) #define store_idt(dtr) __asm__ ("sidt %0":"=m" (*dtr)) -#define store_tr(tr) __asm__ ("str %0":"=mr" (tr)) -#define store_ldt(ldt) __asm__ ("sldt %0":"=mr" (ldt)) +#define store_tr(tr) __asm__ ("str %0":"=m" (tr)) +#define store_ldt(ldt) __asm__ ("sldt %0":"=m" (ldt)) -/* - * This is the ldt that every process will get unless we need - * something other than this. - */ -extern struct desc_struct default_ldt[]; -extern void set_intr_gate(unsigned int irq, void * addr); +#if TLS_SIZE != 24 +# error update this code. +#endif -#define _set_tssldt_desc(n,addr,limit,type) \ -__asm__ __volatile__ ("movw %w3,0(%2)\n\t" \ - "movw %w1,2(%2)\n\t" \ - "rorl $16,%1\n\t" \ - "movb %b1,4(%2)\n\t" \ - "movb %4,5(%2)\n\t" \ - "movb $0,6(%2)\n\t" \ - "movb %h1,7(%2)\n\t" \ - "rorl $16,%1" \ - : "=m"(*(n)) : "q" (addr), "r"(n), "ir"(limit), "i"(type)) - -static inline void __set_tss_desc(unsigned int cpu, unsigned int entry, void *addr) +static inline void load_TLS(struct thread_struct *t, unsigned int cpu) { - _set_tssldt_desc(&get_cpu_gdt_table(cpu)[entry], (int)addr, - offsetof(struct tss_struct, __cacheline_filler) - 1, 0x89); +#define C(i) get_cpu_gdt_table(cpu)[GDT_ENTRY_TLS_MIN + i] = t->tls_array[i] + C(0); C(1); C(2); +#undef C } -#define set_tss_desc(cpu,addr) __set_tss_desc(cpu, GDT_ENTRY_TSS, addr) +static inline void write_dt_entry(void *dt, int entry, __u32 entry_a, __u32 entry_b) +{ + __u32 *lp = (__u32 *)((char *)dt + entry*8); + *lp = entry_a; + *(lp+1) = entry_b; +} + +#define write_ldt_entry(dt, entry, a, b) write_dt_entry(dt, entry, a, b) +#define write_gdt_entry(dt, entry, a, b) write_dt_entry(dt, entry, a, b) +#define write_idt_entry(dt, entry, a, b) write_dt_entry(dt, entry, a, b) + +static inline void _set_gate(int gate, unsigned int type, void *addr, unsigned short seg) +{ + __u32 a, b; + pack_gate(&a, &b, (unsigned long)addr, seg, type, 0); + write_idt_entry(idt_table, gate, a, b); +} -static inline void set_ldt_desc(unsigned int cpu, void *addr, unsigned int size) +static inline void __set_tss_desc(unsigned int cpu, unsigned int entry, const void *addr) { - _set_tssldt_desc(&get_cpu_gdt_table(cpu)[GDT_ENTRY_LDT], (int)addr, ((size << 3)-1), 0x82); + __u32 a, b; + pack_descriptor(&a, &b, (unsigned long)addr, + offsetof(struct tss_struct, __cacheline_filler) - 1, + DESCTYPE_TSS, 0); + write_gdt_entry(get_cpu_gdt_table(cpu), entry, a, b); } +static inline void set_ldt_desc(unsigned int cpu, void *addr, unsigned int entries) +{ + __u32 a, b; + pack_descriptor(&a, &b, (unsigned long)addr, + entries * sizeof(struct desc_struct) - 1, + DESCTYPE_LDT, 0); + write_gdt_entry(get_cpu_gdt_table(cpu), GDT_ENTRY_LDT, a, b); +} + +#define set_tss_desc(cpu,addr) __set_tss_desc(cpu, GDT_ENTRY_TSS, addr) + #define LDT_entry_a(info) \ ((((info)->base_addr & 0x0000ffff) << 16) | ((info)->limit & 0x0ffff)) @@ -102,24 +151,6 @@ static inline void set_ldt_desc(unsigned int cpu, void *addr, unsigned int size) (info)->seg_not_present == 1 && \ (info)->useable == 0 ) -static inline void write_ldt_entry(void *ldt, int entry, __u32 entry_a, __u32 entry_b) -{ - __u32 *lp = (__u32 *)((char *)ldt + entry*8); - *lp = entry_a; - *(lp+1) = entry_b; -} - -#if TLS_SIZE != 24 -# error update this code. -#endif - -static inline void load_TLS(struct thread_struct *t, unsigned int cpu) -{ -#define C(i) get_cpu_gdt_table(cpu)[GDT_ENTRY_TLS_MIN + i] = t->tls_array[i] - C(0); C(1); C(2); -#undef C -} - static inline void clear_LDT(void) { int cpu = get_cpu(); -- cgit v1.2.3 From ba4d40bb5c465f0a4dcc30d02dab80c2cb7e1ff3 Mon Sep 17 00:00:00 2001 From: "Eric W. Biederman" Date: Tue, 26 Sep 2006 10:52:35 +0200 Subject: [PATCH] Auto size the per cpu area. Now for a completely different but trivial approach. I just boot tested it with 255 CPUS and everything worked. Currently everything (except module data) we place in the per cpu area we know about at compile time. So instead of allocating a fixed size for the per_cpu area allocate the number of bytes we need plus a fixed constant for to be used for modules. It isn't perfect but it is much less of a pain to work with than what we are doing now. AK: fixed warning Signed-off-by: Eric W. Biederman Signed-off-by: Andi Kleen --- arch/x86_64/kernel/setup64.c | 7 ++----- include/asm-x86_64/percpu.h | 10 ++++++++++ 2 files changed, 12 insertions(+), 5 deletions(-) (limited to 'include') diff --git a/arch/x86_64/kernel/setup64.c b/arch/x86_64/kernel/setup64.c index b09e60fa96b4..e85cfbb49b63 100644 --- a/arch/x86_64/kernel/setup64.c +++ b/arch/x86_64/kernel/setup64.c @@ -95,12 +95,9 @@ void __init setup_per_cpu_areas(void) #endif /* Copy section for each CPU (we discard the original) */ - size = ALIGN(__per_cpu_end - __per_cpu_start, SMP_CACHE_BYTES); -#ifdef CONFIG_MODULES - if (size < PERCPU_ENOUGH_ROOM) - size = PERCPU_ENOUGH_ROOM; -#endif + size = PERCPU_ENOUGH_ROOM; + printk(KERN_INFO "PERCPU: Allocating %lu bytes of per cpu data\n", size); for_each_cpu_mask (i, cpu_possible_map) { char *ptr; diff --git a/include/asm-x86_64/percpu.h b/include/asm-x86_64/percpu.h index 08dd9f9dda81..39d2bab9b520 100644 --- a/include/asm-x86_64/percpu.h +++ b/include/asm-x86_64/percpu.h @@ -11,6 +11,16 @@ #include +#ifdef CONFIG_MODULES +# define PERCPU_MODULE_RESERVE 8192 +#else +# define PERCPU_MODULE_RESERVE 0 +#endif + +#define PERCPU_ENOUGH_ROOM \ + (ALIGN(__per_cpu_end - __per_cpu_start, SMP_CACHE_BYTES) + \ + PERCPU_MODULE_RESERVE) + #define __per_cpu_offset(cpu) (cpu_pda(cpu)->data_offset) #define __my_cpu_offset() read_pda(data_offset) -- cgit v1.2.3 From 73fea175303926055440c06bc8894f0c5c58afc8 Mon Sep 17 00:00:00 2001 From: Ashok Raj Date: Tue, 26 Sep 2006 10:52:35 +0200 Subject: [PATCH] i386: Support physical cpu hotplug for x86_64 This patch enables ACPI based physical CPU hotplug support for x86_64. Implements acpi_map_lsapic() and acpi_unmap_lsapic() to support physical cpu hotplug. Signed-off-by: Ashok Raj Signed-off-by: Andi Kleen Cc: Andi Kleen Cc: "Brown, Len" Signed-off-by: Andrew Morton --- arch/i386/kernel/acpi/boot.c | 69 +++++++++++++++++++++++++++++++++++++++++--- arch/i386/kernel/mpparse.c | 2 +- include/asm-i386/smp.h | 1 + 3 files changed, 67 insertions(+), 5 deletions(-) (limited to 'include') diff --git a/arch/i386/kernel/acpi/boot.c b/arch/i386/kernel/acpi/boot.c index 0fba420d668a..8a6c5b412348 100644 --- a/arch/i386/kernel/acpi/boot.c +++ b/arch/i386/kernel/acpi/boot.c @@ -26,6 +26,7 @@ #include #include #include +#include #include #include #include @@ -512,16 +513,76 @@ EXPORT_SYMBOL(acpi_register_gsi); #ifdef CONFIG_ACPI_HOTPLUG_CPU int acpi_map_lsapic(acpi_handle handle, int *pcpu) { - /* TBD */ - return -EINVAL; + struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; + union acpi_object *obj; + struct acpi_table_lapic *lapic; + cpumask_t tmp_map, new_map; + u8 physid; + int cpu; + + if (ACPI_FAILURE(acpi_evaluate_object(handle, "_MAT", NULL, &buffer))) + return -EINVAL; + + if (!buffer.length || !buffer.pointer) + return -EINVAL; + + obj = buffer.pointer; + if (obj->type != ACPI_TYPE_BUFFER || + obj->buffer.length < sizeof(*lapic)) { + kfree(buffer.pointer); + return -EINVAL; + } + + lapic = (struct acpi_table_lapic *)obj->buffer.pointer; + + if ((lapic->header.type != ACPI_MADT_LAPIC) || + (!lapic->flags.enabled)) { + kfree(buffer.pointer); + return -EINVAL; + } + + physid = lapic->id; + + kfree(buffer.pointer); + buffer.length = ACPI_ALLOCATE_BUFFER; + buffer.pointer = NULL; + + tmp_map = cpu_present_map; + mp_register_lapic(physid, lapic->flags.enabled); + + /* + * If mp_register_lapic successfully generates a new logical cpu + * number, then the following will get us exactly what was mapped + */ + cpus_andnot(new_map, cpu_present_map, tmp_map); + if (cpus_empty(new_map)) { + printk ("Unable to map lapic to logical cpu number\n"); + return -EINVAL; + } + + cpu = first_cpu(new_map); + + *pcpu = cpu; + return 0; } EXPORT_SYMBOL(acpi_map_lsapic); int acpi_unmap_lsapic(int cpu) { - /* TBD */ - return -EINVAL; + int i; + + for_each_possible_cpu(i) { + if (x86_acpiid_to_apicid[i] == x86_cpu_to_apicid[cpu]) { + x86_acpiid_to_apicid[i] = -1; + break; + } + } + x86_cpu_to_apicid[cpu] = -1; + cpu_clear(cpu, cpu_present_map); + num_processors--; + + return (0); } EXPORT_SYMBOL(acpi_unmap_lsapic); diff --git a/arch/i386/kernel/mpparse.c b/arch/i386/kernel/mpparse.c index 772a4233bfe6..442aaf8c77eb 100644 --- a/arch/i386/kernel/mpparse.c +++ b/arch/i386/kernel/mpparse.c @@ -69,7 +69,7 @@ unsigned int def_to_bigsmp = 0; /* Processor that is doing the boot up */ unsigned int boot_cpu_physical_apicid = -1U; /* Internal processor count */ -static unsigned int __devinitdata num_processors; +unsigned int __cpuinitdata num_processors; /* Bitmask of physically existing CPUs */ physid_mask_t phys_cpu_present_map; diff --git a/include/asm-i386/smp.h b/include/asm-i386/smp.h index f87826039a51..32ac8c91d5c5 100644 --- a/include/asm-i386/smp.h +++ b/include/asm-i386/smp.h @@ -84,6 +84,7 @@ static inline int hard_smp_processor_id(void) extern int __cpu_disable(void); extern void __cpu_die(unsigned int cpu); +extern unsigned int num_processors; #endif /* !__ASSEMBLY__ */ -- cgit v1.2.3 From e07e23e1fd3000289fc7ccc6c71879070d3b19e0 Mon Sep 17 00:00:00 2001 From: Arjan van de Ven Date: Tue, 26 Sep 2006 10:52:36 +0200 Subject: [PATCH] non lazy "sleazy" fpu implementation Right now the kernel on x86-64 has a 100% lazy fpu behavior: after *every* context switch a trap is taken for the first FPU use to restore the FPU context lazily. This is of course great for applications that have very sporadic or no FPU use (since then you avoid doing the expensive save/restore all the time). However for very frequent FPU users... you take an extra trap every context switch. The patch below adds a simple heuristic to this code: After 5 consecutive context switches of FPU use, the lazy behavior is disabled and the context gets restored every context switch. If the app indeed uses the FPU, the trap is avoided. (the chance of the 6th time slice using FPU after the previous 5 having done so are quite high obviously). After 256 switches, this is reset and lazy behavior is returned (until there are 5 consecutive ones again). The reason for this is to give apps that do longer bursts of FPU use still the lazy behavior back after some time. [akpm@osdl.org: place new task_struct field next to jit_keyring to save space] Signed-off-by: Arjan van de Ven Signed-off-by: Andi Kleen Cc: Andi Kleen Signed-off-by: Andrew Morton --- arch/x86_64/kernel/process.c | 10 ++++++++++ arch/x86_64/kernel/traps.c | 1 + include/asm-x86_64/i387.h | 5 ++++- include/linux/sched.h | 9 +++++++++ 4 files changed, 24 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/arch/x86_64/kernel/process.c b/arch/x86_64/kernel/process.c index 6fbd19564e4e..9e9a70e50c72 100644 --- a/arch/x86_64/kernel/process.c +++ b/arch/x86_64/kernel/process.c @@ -552,6 +552,10 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p) int cpu = smp_processor_id(); struct tss_struct *tss = &per_cpu(init_tss, cpu); + /* we're going to use this soon, after a few expensive things */ + if (next_p->fpu_counter>5) + prefetch(&next->i387.fxsave); + /* * Reload esp0, LDT and the page table pointer: */ @@ -629,6 +633,12 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p) || test_tsk_thread_flag(prev_p, TIF_IO_BITMAP)) __switch_to_xtra(prev_p, next_p, tss); + /* If the task has used fpu the last 5 timeslices, just do a full + * restore of the math state immediately to avoid the trap; the + * chances of needing FPU soon are obviously high now + */ + if (next_p->fpu_counter>5) + math_state_restore(); return prev_p; } diff --git a/arch/x86_64/kernel/traps.c b/arch/x86_64/kernel/traps.c index 28e53342f294..ffc40cff1e07 100644 --- a/arch/x86_64/kernel/traps.c +++ b/arch/x86_64/kernel/traps.c @@ -1136,6 +1136,7 @@ asmlinkage void math_state_restore(void) init_fpu(me); restore_fpu_checking(&me->thread.i387.fxsave); task_thread_info(me)->status |= TS_USEDFPU; + me->fpu_counter++; } void __init trap_init(void) diff --git a/include/asm-x86_64/i387.h b/include/asm-x86_64/i387.h index cba8a3b0cded..60c0f4853fdb 100644 --- a/include/asm-x86_64/i387.h +++ b/include/asm-x86_64/i387.h @@ -24,6 +24,7 @@ extern unsigned int mxcsr_feature_mask; extern void mxcsr_feature_mask_init(void); extern void init_fpu(struct task_struct *child); extern int save_i387(struct _fpstate __user *buf); +extern asmlinkage void math_state_restore(void); /* * FPU lazy state save handling... @@ -31,7 +32,9 @@ extern int save_i387(struct _fpstate __user *buf); #define unlazy_fpu(tsk) do { \ if (task_thread_info(tsk)->status & TS_USEDFPU) \ - save_init_fpu(tsk); \ + save_init_fpu(tsk); \ + else \ + tsk->fpu_counter = 0; \ } while (0) /* Ignore delayed exceptions from user space */ diff --git a/include/linux/sched.h b/include/linux/sched.h index 34ed0d99b1bd..807556c5bcd2 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -865,6 +865,15 @@ struct task_struct { struct key *thread_keyring; /* keyring private to this thread */ unsigned char jit_keyring; /* default keyring to attach requested keys to */ #endif + /* + * fpu_counter contains the number of consecutive context switches + * that the FPU is used. If this is over a threshold, the lazy fpu + * saving becomes unlazy to save the trap. This is an unsigned char + * so that after 256 times the counter wraps and the behavior turns + * lazy again; this to deal with bursty apps that only use FPU for + * a short time + */ + unsigned char fpu_counter; int oomkilladj; /* OOM kill score adjustment (bit shift). */ char comm[TASK_COMM_LEN]; /* executable name excluding path - access with [gs]et_task_comm (which lock -- cgit v1.2.3 From f704cb935006580db0495e54d3c82631f6e2a984 Mon Sep 17 00:00:00 2001 From: Dave Jones Date: Tue, 26 Sep 2006 10:52:36 +0200 Subject: [PATCH] x86: remove config.h includes from asm-i386 & asm-x86_64 This is now automatically included by kbuild. Signed-off-by: Dave Jones Signed-off-by: Andi Kleen --- include/asm-i386/dwarf2.h | 2 -- include/asm-i386/tsc.h | 1 - include/asm-x86_64/calgary.h | 1 - 3 files changed, 4 deletions(-) (limited to 'include') diff --git a/include/asm-i386/dwarf2.h b/include/asm-i386/dwarf2.h index 2280f6272f80..fe2392f361ee 100644 --- a/include/asm-i386/dwarf2.h +++ b/include/asm-i386/dwarf2.h @@ -1,8 +1,6 @@ #ifndef _DWARF2_H #define _DWARF2_H -#include - #ifndef __ASSEMBLY__ #warning "asm/dwarf2.h should be only included in pure assembly files" #endif diff --git a/include/asm-i386/tsc.h b/include/asm-i386/tsc.h index 97b828ce31e0..c13933185c1c 100644 --- a/include/asm-i386/tsc.h +++ b/include/asm-i386/tsc.h @@ -6,7 +6,6 @@ #ifndef _ASM_i386_TSC_H #define _ASM_i386_TSC_H -#include #include /* diff --git a/include/asm-x86_64/calgary.h b/include/asm-x86_64/calgary.h index 0a03bda94d03..6b93f5a3a5c8 100644 --- a/include/asm-x86_64/calgary.h +++ b/include/asm-x86_64/calgary.h @@ -24,7 +24,6 @@ #ifndef _ASM_X86_64_CALGARY_H #define _ASM_X86_64_CALGARY_H -#include #include #include #include -- cgit v1.2.3 From 1bb4996bcebca1cde49d964b4e012699ce180e61 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Tue, 26 Sep 2006 10:52:37 +0200 Subject: [PATCH] Move compiler check for modules to ia64 only Apparently IA64 needs it, but i386/x86-64 don't anymore since gcc 2.95 support was dropped. Nobody else on linux-arch requested keeping it generically Cc: tony.luck@intel.com Cc: kaos@sgi.com Signed-off-by: Andi Kleen --- include/asm-ia64/module.h | 3 ++- include/linux/vermagic.h | 4 ++-- 2 files changed, 4 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/include/asm-ia64/module.h b/include/asm-ia64/module.h index 85c82bd819f2..d2da61e4c49b 100644 --- a/include/asm-ia64/module.h +++ b/include/asm-ia64/module.h @@ -28,7 +28,8 @@ struct mod_arch_specific { #define Elf_Ehdr Elf64_Ehdr #define MODULE_PROC_FAMILY "ia64" -#define MODULE_ARCH_VERMAGIC MODULE_PROC_FAMILY +#define MODULE_ARCH_VERMAGIC MODULE_PROC_FAMILY \ + "gcc-" __stringify(__GNUC__) "." __stringify(__GNUC_MINOR__) #define ARCH_SHF_SMALL SHF_IA_64_SHORT diff --git a/include/linux/vermagic.h b/include/linux/vermagic.h index 46919f9f5eb3..4d0909e53595 100644 --- a/include/linux/vermagic.h +++ b/include/linux/vermagic.h @@ -24,5 +24,5 @@ #define VERMAGIC_STRING \ UTS_RELEASE " " \ MODULE_VERMAGIC_SMP MODULE_VERMAGIC_PREEMPT \ - MODULE_VERMAGIC_MODULE_UNLOAD MODULE_ARCH_VERMAGIC \ - "gcc-" __stringify(__GNUC__) "." __stringify(__GNUC_MINOR__) + MODULE_VERMAGIC_MODULE_UNLOAD MODULE_ARCH_VERMAGIC + -- cgit v1.2.3 From a549b86dd0f3cbffcd5f9343f4ae7fcd59f7e756 Mon Sep 17 00:00:00 2001 From: Chuck Ebbert <76306.1226@compuserve.com> Date: Tue, 26 Sep 2006 10:52:37 +0200 Subject: [PATCH] i386: annotate FIX_STACK() and the rest of nmi() In i386's entry.S, FIX_STACK() needs annotation because it replaces the stack pointer. And the rest of nmi() needs annotation in order to compile with these new annotations. Signed-off-by: Chuck Ebbert <76306.1226@compuserve.com> Signed-off-by: Andi Kleen --- arch/i386/kernel/entry.S | 18 +++++++++++++++--- include/asm-i386/dwarf2.h | 2 ++ 2 files changed, 17 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/arch/i386/kernel/entry.S b/arch/i386/kernel/entry.S index 0928f70639aa..4b0845249222 100644 --- a/arch/i386/kernel/entry.S +++ b/arch/i386/kernel/entry.S @@ -701,9 +701,15 @@ device_not_available_emulate: jne ok; \ label: \ movl TSS_sysenter_esp0+offset(%esp),%esp; \ + CFI_DEF_CFA esp, 0; \ + CFI_UNDEFINED eip; \ pushfl; \ + CFI_ADJUST_CFA_OFFSET 4; \ pushl $__KERNEL_CS; \ - pushl $sysenter_past_esp + CFI_ADJUST_CFA_OFFSET 4; \ + pushl $sysenter_past_esp; \ + CFI_ADJUST_CFA_OFFSET 4; \ + CFI_REL_OFFSET eip, 0 KPROBE_ENTRY(debug) RING0_INT_FRAME @@ -754,6 +760,7 @@ KPROBE_ENTRY(nmi) cmpl $sysenter_entry,12(%esp) je nmi_debug_stack_check nmi_stack_correct: + /* We have a RING0_INT_FRAME here */ pushl %eax CFI_ADJUST_CFA_OFFSET 4 SAVE_ALL @@ -764,9 +771,12 @@ nmi_stack_correct: CFI_ENDPROC nmi_stack_fixup: + RING0_INT_FRAME FIX_STACK(12,nmi_stack_correct, 1) jmp nmi_stack_correct + nmi_debug_stack_check: + /* We have a RING0_INT_FRAME here */ cmpw $__KERNEL_CS,16(%esp) jne nmi_stack_correct cmpl $debug,(%esp) @@ -777,8 +787,10 @@ nmi_debug_stack_check: jmp nmi_stack_correct nmi_16bit_stack: - RING0_INT_FRAME - /* create the pointer to lss back */ + /* We have a RING0_INT_FRAME here. + * + * create the pointer to lss back + */ pushl %ss CFI_ADJUST_CFA_OFFSET 4 pushl %esp diff --git a/include/asm-i386/dwarf2.h b/include/asm-i386/dwarf2.h index fe2392f361ee..5d1a8db5a9b0 100644 --- a/include/asm-i386/dwarf2.h +++ b/include/asm-i386/dwarf2.h @@ -26,6 +26,7 @@ #define CFI_RESTORE .cfi_restore #define CFI_REMEMBER_STATE .cfi_remember_state #define CFI_RESTORE_STATE .cfi_restore_state +#define CFI_UNDEFINED .cfi_undefined #else @@ -46,6 +47,7 @@ #define CFI_RESTORE ignore #define CFI_REMEMBER_STATE ignore #define CFI_RESTORE_STATE ignore +#define CFI_UNDEFINED ignore #endif -- cgit v1.2.3 From 151f8cc1169f9052095b2be36183ab132d75c6c2 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Tue, 26 Sep 2006 10:52:37 +0200 Subject: [PATCH] Remove safe_smp_processor_id() And replace all users with ordinary smp_processor_id. The function was originally added to get some basic oops information out even if the GS register was corrupted. However that didn't work for some anymore because printk is needed to print the oops and it uses smp_processor_id() already. Also GS register corruptions are not particularly common anymore. This also helps the Xen port which would otherwise need to do this in a special way because it can't access the local APIC. Cc: Chris Wright Signed-off-by: Andi Kleen --- arch/x86_64/kernel/mce.c | 2 +- arch/x86_64/kernel/smp.c | 23 ----------------------- arch/x86_64/kernel/traps.c | 10 +++++----- include/asm-x86_64/smp.h | 2 -- 4 files changed, 6 insertions(+), 31 deletions(-) (limited to 'include') diff --git a/arch/x86_64/kernel/mce.c b/arch/x86_64/kernel/mce.c index 4e017fb30fb3..1a93c3738404 100644 --- a/arch/x86_64/kernel/mce.c +++ b/arch/x86_64/kernel/mce.c @@ -182,7 +182,7 @@ void do_machine_check(struct pt_regs * regs, long error_code) goto out2; memset(&m, 0, sizeof(struct mce)); - m.cpu = safe_smp_processor_id(); + m.cpu = smp_processor_id(); rdmsrl(MSR_IA32_MCG_STATUS, m.mcgstatus); if (!(m.mcgstatus & MCG_STATUS_RIPV)) kill_it = 1; diff --git a/arch/x86_64/kernel/smp.c b/arch/x86_64/kernel/smp.c index 2df988bbf312..4f67697f5036 100644 --- a/arch/x86_64/kernel/smp.c +++ b/arch/x86_64/kernel/smp.c @@ -522,26 +522,3 @@ asmlinkage void smp_call_function_interrupt(void) } } -int safe_smp_processor_id(void) -{ - unsigned apicid, i; - - if (disable_apic || !apic_mapped) - return 0; - - apicid = hard_smp_processor_id(); - if (apicid < NR_CPUS && x86_cpu_to_apicid[apicid] == apicid) - return apicid; - - for (i = 0; i < NR_CPUS; ++i) { - if (x86_cpu_to_apicid[i] == apicid) - return i; - } - - /* No entries in x86_cpu_to_apicid? Either no MPS|ACPI, - * or called too early. Either way, we must be CPU 0. */ - if (x86_cpu_to_apicid[0] == BAD_APICID) - return 0; - - return 0; /* Should not happen */ -} diff --git a/arch/x86_64/kernel/traps.c b/arch/x86_64/kernel/traps.c index 34660b1e2720..38bc821e457b 100644 --- a/arch/x86_64/kernel/traps.c +++ b/arch/x86_64/kernel/traps.c @@ -264,7 +264,7 @@ static int dump_trace_unwind(struct unwind_frame_info *info, void *context) void dump_trace(struct task_struct *tsk, struct pt_regs *regs, unsigned long * stack, struct stacktrace_ops *ops, void *data) { - const unsigned cpu = safe_smp_processor_id(); + const unsigned cpu = smp_processor_id(); unsigned long *irqstack_end = (unsigned long *)cpu_pda(cpu)->irqstackptr; unsigned used = 0; @@ -429,7 +429,7 @@ _show_stack(struct task_struct *tsk, struct pt_regs *regs, unsigned long *rsp) { unsigned long *stack; int i; - const int cpu = safe_smp_processor_id(); + const int cpu = smp_processor_id(); unsigned long *irqstack_end = (unsigned long *) (cpu_pda(cpu)->irqstackptr); unsigned long *irqstack = (unsigned long *) (cpu_pda(cpu)->irqstackptr - IRQSTACKSIZE); @@ -483,7 +483,7 @@ void show_registers(struct pt_regs *regs) int i; int in_kernel = !user_mode(regs); unsigned long rsp; - const int cpu = safe_smp_processor_id(); + const int cpu = smp_processor_id(); struct task_struct *cur = cpu_pda(cpu)->pcurrent; rsp = regs->rsp; @@ -558,7 +558,7 @@ static unsigned int die_nest_count; unsigned __kprobes long oops_begin(void) { - int cpu = safe_smp_processor_id(); + int cpu = smp_processor_id(); unsigned long flags; oops_enter(); @@ -636,7 +636,7 @@ void __kprobes die_nmi(char *str, struct pt_regs *regs, int do_panic) * We are in trouble anyway, lets at least try * to get a message out. */ - printk(str, safe_smp_processor_id()); + printk(str, smp_processor_id()); show_registers(regs); if (kexec_should_crash(current)) crash_kexec(regs); diff --git a/include/asm-x86_64/smp.h b/include/asm-x86_64/smp.h index 498fbc1fc179..58b5d6149a42 100644 --- a/include/asm-x86_64/smp.h +++ b/include/asm-x86_64/smp.h @@ -66,7 +66,6 @@ static inline int hard_smp_processor_id(void) return GET_APIC_ID(*(unsigned int *)(APIC_BASE+APIC_ID)); } -extern int safe_smp_processor_id(void); extern int __cpu_disable(void); extern void __cpu_die(unsigned int cpu); extern void prefill_possible_map(void); @@ -100,7 +99,6 @@ static inline int cpu_present_to_apicid(int mps_cpu) #ifndef CONFIG_SMP #define stack_smp_processor_id() 0 -#define safe_smp_processor_id() 0 #define cpu_logical_map(x) (x) #else #include -- cgit v1.2.3 From df992848f5aa803fcacd2c5e7d67034bb89e3fa3 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Tue, 26 Sep 2006 10:52:37 +0200 Subject: [PATCH] Fix pte_exec/mkexec and use it in change_page_attr() Fix the pte_exec/mkexec page table accessor functions to really use the NX bit. Previously they only checked the USER bit, but weren't actually used for anything. Then use them in change_page_attr() to manipulate the NX bit properly. Signed-off-by: Andi Kleen --- arch/x86_64/mm/pageattr.c | 8 +++++--- include/asm-x86_64/pgtable.h | 4 ++-- 2 files changed, 7 insertions(+), 5 deletions(-) (limited to 'include') diff --git a/arch/x86_64/mm/pageattr.c b/arch/x86_64/mm/pageattr.c index 2685b1f3671c..01591b649f4e 100644 --- a/arch/x86_64/mm/pageattr.c +++ b/arch/x86_64/mm/pageattr.c @@ -190,10 +190,12 @@ int change_page_attr_addr(unsigned long address, int numpages, pgprot_t prot) * lowmem */ if (__pa(address) < KERNEL_TEXT_SIZE) { unsigned long addr2; - pgprot_t prot2 = prot; + pgprot_t prot2; addr2 = __START_KERNEL_map + __pa(address); - pgprot_val(prot2) &= ~_PAGE_NX; - err = __change_page_attr(addr2, pfn, prot2, PAGE_KERNEL_EXEC); + /* Make sure the kernel mappings stay executable */ + prot2 = pte_pgprot(pte_mkexec(pfn_pte(0, prot))); + err = __change_page_attr(addr2, pfn, prot2, + PAGE_KERNEL_EXEC); } } up_write(&init_mm.mmap_sem); diff --git a/include/asm-x86_64/pgtable.h b/include/asm-x86_64/pgtable.h index d79e7441b513..f7614670c655 100644 --- a/include/asm-x86_64/pgtable.h +++ b/include/asm-x86_64/pgtable.h @@ -265,7 +265,7 @@ static inline pte_t pfn_pte(unsigned long page_nr, pgprot_t pgprot) #define __LARGE_PTE (_PAGE_PSE|_PAGE_PRESENT) static inline int pte_user(pte_t pte) { return pte_val(pte) & _PAGE_USER; } static inline int pte_read(pte_t pte) { return pte_val(pte) & _PAGE_USER; } -static inline int pte_exec(pte_t pte) { return pte_val(pte) & _PAGE_USER; } +static inline int pte_exec(pte_t pte) { return !(pte_val(pte) & _PAGE_NX); } static inline int pte_dirty(pte_t pte) { return pte_val(pte) & _PAGE_DIRTY; } static inline int pte_young(pte_t pte) { return pte_val(pte) & _PAGE_ACCESSED; } static inline int pte_write(pte_t pte) { return pte_val(pte) & _PAGE_RW; } @@ -278,7 +278,7 @@ static inline pte_t pte_mkclean(pte_t pte) { set_pte(&pte, __pte(pte_val(pte) & static inline pte_t pte_mkold(pte_t pte) { set_pte(&pte, __pte(pte_val(pte) & ~_PAGE_ACCESSED)); return pte; } static inline pte_t pte_wrprotect(pte_t pte) { set_pte(&pte, __pte(pte_val(pte) & ~_PAGE_RW)); return pte; } static inline pte_t pte_mkread(pte_t pte) { set_pte(&pte, __pte(pte_val(pte) | _PAGE_USER)); return pte; } -static inline pte_t pte_mkexec(pte_t pte) { set_pte(&pte, __pte(pte_val(pte) | _PAGE_USER)); return pte; } +static inline pte_t pte_mkexec(pte_t pte) { set_pte(&pte, __pte(pte_val(pte) & ~_PAGE_NX)); return pte; } static inline pte_t pte_mkdirty(pte_t pte) { set_pte(&pte, __pte(pte_val(pte) | _PAGE_DIRTY)); return pte; } static inline pte_t pte_mkyoung(pte_t pte) { set_pte(&pte, __pte(pte_val(pte) | _PAGE_ACCESSED)); return pte; } static inline pte_t pte_mkwrite(pte_t pte) { set_pte(&pte, __pte(pte_val(pte) | _PAGE_RW)); return pte; } -- cgit v1.2.3 From 5e6b0bfe5b452957b7be4b6ef181cd41880f8359 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Tue, 26 Sep 2006 10:52:37 +0200 Subject: [PATCH] Use proper accessors to change PSE bits in change_page_attr() Use normal pte accessors in change_page_attr() to access the PSE bits. Signed-off-by: Andi Kleen --- arch/x86_64/mm/pageattr.c | 16 ++++++---------- include/asm-x86_64/pgtable.h | 1 + 2 files changed, 7 insertions(+), 10 deletions(-) (limited to 'include') diff --git a/arch/x86_64/mm/pageattr.c b/arch/x86_64/mm/pageattr.c index 01591b649f4e..3e231d762aaa 100644 --- a/arch/x86_64/mm/pageattr.c +++ b/arch/x86_64/mm/pageattr.c @@ -108,8 +108,8 @@ static void revert_page(unsigned long address, pgprot_t ref_prot) BUG_ON(pud_none(*pud)); pmd = pmd_offset(pud, address); BUG_ON(pmd_val(*pmd) & _PAGE_PSE); - pgprot_val(ref_prot) |= _PAGE_PSE; large_pte = mk_pte_phys(__pa(address) & LARGE_PAGE_MASK, ref_prot); + large_pte = pte_mkhuge(large_pte); set_pte((pte_t *)pmd, large_pte); } @@ -119,32 +119,28 @@ __change_page_attr(unsigned long address, unsigned long pfn, pgprot_t prot, { pte_t *kpte; struct page *kpte_page; - unsigned kpte_flags; pgprot_t ref_prot2; kpte = lookup_address(address); if (!kpte) return 0; kpte_page = virt_to_page(((unsigned long)kpte) & PAGE_MASK); - kpte_flags = pte_val(*kpte); if (pgprot_val(prot) != pgprot_val(ref_prot)) { - if ((kpte_flags & _PAGE_PSE) == 0) { + if (!pte_huge(*kpte)) { set_pte(kpte, pfn_pte(pfn, prot)); } else { /* * split_large_page will take the reference for this * change_page_attr on the split page. */ - struct page *split; - ref_prot2 = __pgprot(pgprot_val(pte_pgprot(*lookup_address(address))) & ~(1<<_PAGE_BIT_PSE)); - + ref_prot2 = pte_pgprot(pte_clrhuge(*kpte)); split = split_large_page(address, prot, ref_prot2); if (!split) return -ENOMEM; - set_pte(kpte,mk_pte(split, ref_prot2)); + set_pte(kpte, mk_pte(split, ref_prot2)); kpte_page = split; - } + } page_private(kpte_page)++; - } else if ((kpte_flags & _PAGE_PSE) == 0) { + } else if (!pte_huge(*kpte)) { set_pte(kpte, pfn_pte(pfn, ref_prot)); BUG_ON(page_private(kpte_page) == 0); page_private(kpte_page)--; diff --git a/include/asm-x86_64/pgtable.h b/include/asm-x86_64/pgtable.h index f7614670c655..b34f43acdef1 100644 --- a/include/asm-x86_64/pgtable.h +++ b/include/asm-x86_64/pgtable.h @@ -283,6 +283,7 @@ static inline pte_t pte_mkdirty(pte_t pte) { set_pte(&pte, __pte(pte_val(pte) | static inline pte_t pte_mkyoung(pte_t pte) { set_pte(&pte, __pte(pte_val(pte) | _PAGE_ACCESSED)); return pte; } static inline pte_t pte_mkwrite(pte_t pte) { set_pte(&pte, __pte(pte_val(pte) | _PAGE_RW)); return pte; } static inline pte_t pte_mkhuge(pte_t pte) { set_pte(&pte, __pte(pte_val(pte) | _PAGE_PSE)); return pte; } +static inline pte_t pte_clrhuge(pte_t pte) { set_pte(&pte, __pte(pte_val(pte) & ~_PAGE_PSE)); return pte; } struct vm_area_struct; -- cgit v1.2.3 From e4251e130deef9de5226cc36faa70a1c6671d3c5 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Tue, 26 Sep 2006 10:52:37 +0200 Subject: [PATCH] Remove some cruft in apic id checking during processor setup - Remove a define that was used only once - Remove the too large APIC ID check because we always support the full 8bit range of APICs. - Restructure code a bit to be simpler. Cc: len.brown@intel.com Signed-off-by: Andi Kleen --- arch/x86_64/kernel/mpparse.c | 18 +----------------- include/asm-x86_64/acpi.h | 2 -- 2 files changed, 1 insertion(+), 19 deletions(-) (limited to 'include') diff --git a/arch/x86_64/kernel/mpparse.c b/arch/x86_64/kernel/mpparse.c index 32b6977f80c0..02eef8f6415f 100644 --- a/arch/x86_64/kernel/mpparse.c +++ b/arch/x86_64/kernel/mpparse.c @@ -100,7 +100,6 @@ static void __cpuinit MP_processor_info (struct mpc_config_processor *m) disabled_cpus++; return; } - if (m->mpc_cpuflag & CPU_BOOTPROCESSOR) { bootup_cpu = " (Bootup-CPU)"; boot_cpu_id = m->mpc_apicid; @@ -118,13 +117,6 @@ static void __cpuinit MP_processor_info (struct mpc_config_processor *m) cpus_complement(tmp_map, cpu_present_map); cpu = first_cpu(tmp_map); -#if MAX_APICS < 255 - if ((int)m->mpc_apicid > MAX_APICS) { - printk(KERN_ERR "Processor #%d INVALID. (Max ID: %d).\n", - m->mpc_apicid, MAX_APICS); - return; - } -#endif physid_set(m->mpc_apicid, phys_cpu_present_map); if (m->mpc_cpuflag & CPU_BOOTPROCESSOR) { /* @@ -603,8 +595,6 @@ void __init mp_register_lapic_address(u64 address) set_fixmap_nocache(FIX_APIC_BASE, mp_lapic_addr); if (boot_cpu_id == -1U) boot_cpu_id = GET_APIC_ID(apic_read(APIC_ID)); - - Dprintk("Boot CPU = %d\n", boot_cpu_physical_apicid); } void __cpuinit mp_register_lapic (u8 id, u8 enabled) @@ -612,13 +602,7 @@ void __cpuinit mp_register_lapic (u8 id, u8 enabled) struct mpc_config_processor processor; int boot_cpu = 0; - if (id >= MAX_APICS) { - printk(KERN_WARNING "Processor #%d invalid (max %d)\n", - id, MAX_APICS); - return; - } - - if (id == boot_cpu_physical_apicid) + if (id == boot_cpu_id) boot_cpu = 1; processor.mpc_type = MP_PROCESSOR; diff --git a/include/asm-x86_64/acpi.h b/include/asm-x86_64/acpi.h index 2c95a319c056..ed59aa4c6ff9 100644 --- a/include/asm-x86_64/acpi.h +++ b/include/asm-x86_64/acpi.h @@ -155,8 +155,6 @@ extern void acpi_reserve_bootmem(void); #endif /*CONFIG_ACPI_SLEEP*/ -#define boot_cpu_physical_apicid boot_cpu_id - extern int acpi_disabled; extern int acpi_pci_disabled; -- cgit v1.2.3 From 8380aabb99719af583447133f19a4d8074b5c337 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Tue, 26 Sep 2006 10:52:37 +0200 Subject: [PATCH] Remove non e820 fallbacks in high level code Drop support for non e820 BIOS calls to get the memory map. The boot assembler code still has some support, but not the C code now. Signed-off-by: Andi Kleen --- arch/x86_64/kernel/e820.c | 28 +++++++++------------------- include/asm-x86_64/e820.h | 4 ---- 2 files changed, 9 insertions(+), 23 deletions(-) (limited to 'include') diff --git a/arch/x86_64/kernel/e820.c b/arch/x86_64/kernel/e820.c index e06c2714ecf3..5d1275a93658 100644 --- a/arch/x86_64/kernel/e820.c +++ b/arch/x86_64/kernel/e820.c @@ -536,10 +536,14 @@ static int __init copy_e820_map(struct e820entry * biosmap, int nr_map) return 0; } -void __init setup_memory_region(void) +void early_panic(char *msg) { - char *who = "BIOS-e820"; + early_printk(msg); + panic(msg); +} +void __init setup_memory_region(void) +{ /* * Try to copy the BIOS-supplied E820-map. * @@ -547,24 +551,10 @@ void __init setup_memory_region(void) * the next section from 1mb->appropriate_mem_k */ sanitize_e820_map(E820_MAP, &E820_MAP_NR); - if (copy_e820_map(E820_MAP, E820_MAP_NR) < 0) { - unsigned long mem_size; - - /* compare results from other methods and take the greater */ - if (ALT_MEM_K < EXT_MEM_K) { - mem_size = EXT_MEM_K; - who = "BIOS-88"; - } else { - mem_size = ALT_MEM_K; - who = "BIOS-e801"; - } - - e820.nr_map = 0; - add_memory_region(0, LOWMEMSIZE(), E820_RAM); - add_memory_region(HIGH_MEMORY, mem_size << 10, E820_RAM); - } + if (copy_e820_map(E820_MAP, E820_MAP_NR) < 0) + early_panic("Cannot find a valid memory map"); printk(KERN_INFO "BIOS-provided physical RAM map:\n"); - e820_print_map(who); + e820_print_map("BIOS-e820"); } static int __init parse_memopt(char *p) diff --git a/include/asm-x86_64/e820.h b/include/asm-x86_64/e820.h index dba012151856..8dac397bf85e 100644 --- a/include/asm-x86_64/e820.h +++ b/include/asm-x86_64/e820.h @@ -22,10 +22,6 @@ #define E820_ACPI 3 /* usable as RAM once ACPI tables have been read */ #define E820_NVS 4 -#define HIGH_MEMORY (1024*1024) - -#define LOWMEMSIZE() (0x9f000) - #ifndef __ASSEMBLY__ struct e820entry { u64 addr; /* start of memory segment */ -- cgit v1.2.3 From 0136611c62e8650e354b95c76dff6d2ce6030eff Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Tue, 26 Sep 2006 10:52:38 +0200 Subject: [PATCH] optimize hweight64 for x86_64 Based on patch from David Rientjes , but changed by AK. Optimizes the 64-bit hamming weight for x86_64 processors assuming they have fast multiplication. Uses five fewer bitops than the generic hweight64. Benchmark on one EMT64 showed ~25% speedup with 2^24 consecutive calls. Define a new ARCH_HAS_FAST_MULTIPLIER that can be set by other architectures that can also multiply fast. Signed-off-by: Andi Kleen --- include/asm-x86_64/bitops.h | 2 ++ lib/hweight.c | 10 ++++++++-- 2 files changed, 10 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/asm-x86_64/bitops.h b/include/asm-x86_64/bitops.h index f7ba57b1cc08..5b535eaf5309 100644 --- a/include/asm-x86_64/bitops.h +++ b/include/asm-x86_64/bitops.h @@ -399,6 +399,8 @@ static __inline__ int fls(int x) return r+1; } +#define ARCH_HAS_FAST_MULTIPLIER 1 + #include #endif /* __KERNEL__ */ diff --git a/lib/hweight.c b/lib/hweight.c index 438257671708..360556a7803d 100644 --- a/lib/hweight.c +++ b/lib/hweight.c @@ -1,5 +1,6 @@ #include #include +#include /** * hweightN - returns the hamming weight of a N-bit word @@ -40,14 +41,19 @@ unsigned long hweight64(__u64 w) #if BITS_PER_LONG == 32 return hweight32((unsigned int)(w >> 32)) + hweight32((unsigned int)w); #elif BITS_PER_LONG == 64 +#ifdef ARCH_HAS_FAST_MULTIPLIER + w -= (w >> 1) & 0x5555555555555555ul; + w = (w & 0x3333333333333333ul) + ((w >> 2) & 0x3333333333333333ul); + w = (w + (w >> 4)) & 0x0f0f0f0f0f0f0f0ful; + return (w * 0x0101010101010101ul) >> 56; +#else __u64 res = w - ((w >> 1) & 0x5555555555555555ul); res = (res & 0x3333333333333333ul) + ((res >> 2) & 0x3333333333333333ul); res = (res + (res >> 4)) & 0x0F0F0F0F0F0F0F0Ful; res = res + (res >> 8); res = res + (res >> 16); return (res + (res >> 32)) & 0x00000000000000FFul; -#else -#error BITS_PER_LONG not defined +#endif #endif } EXPORT_SYMBOL(hweight64); -- cgit v1.2.3 From 80d2679cbc8e170011c9649fb8fb684ffd7e5c8f Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Tue, 26 Sep 2006 10:52:38 +0200 Subject: [PATCH] x86: Remove incorrect comment about ACPI e820 entries They cannot be actually freed because the FACS table has a shared-with-the-BIOS lock. Signed-off-by: Andi Kleen --- include/asm-i386/e820.h | 2 +- include/asm-x86_64/e820.h | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/asm-i386/e820.h b/include/asm-i386/e820.h index ca82acb8cb1f..f7514fb6e8e4 100644 --- a/include/asm-i386/e820.h +++ b/include/asm-i386/e820.h @@ -18,7 +18,7 @@ #define E820_RAM 1 #define E820_RESERVED 2 -#define E820_ACPI 3 /* usable as RAM once ACPI tables have been read */ +#define E820_ACPI 3 #define E820_NVS 4 #define HIGH_MEMORY (1024*1024) diff --git a/include/asm-x86_64/e820.h b/include/asm-x86_64/e820.h index 8dac397bf85e..fd4198b49637 100644 --- a/include/asm-x86_64/e820.h +++ b/include/asm-x86_64/e820.h @@ -19,7 +19,7 @@ #define E820_RAM 1 #define E820_RESERVED 2 -#define E820_ACPI 3 /* usable as RAM once ACPI tables have been read */ +#define E820_ACPI 3 #define E820_NVS 4 #ifndef __ASSEMBLY__ -- cgit v1.2.3 From 53ee11ae0d73f28029a5f0d991bc4dcd7c817e7a Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Tue, 26 Sep 2006 10:52:38 +0200 Subject: [PATCH] Optimize PDA accesses slightly Based on a idea by Jeremy Fitzhardinge: Replace the volatiles and memory clobbers in the PDA access with telling gcc about access to a proxy PDA structure that doesn't actually exist. But the dummy accesses give a defined ordering for read/write accesses. Also add some memory barriers to the early GS initialization to make sure no PDA access is moved before it. Advantage is some .text savings (probably most from better code for accessing "current"): text data bss dec hex filename 4845647 1223688 615864 6685199 66020f vmlinux 4837780 1223688 615864 6677332 65e354 vmlinux-pda 1.2% smaller code Cc: Jeremy Fitzhardinge Signed-off-by: Andi Kleen --- arch/x86_64/kernel/setup64.c | 3 +++ include/asm-x86_64/pda.h | 41 ++++++++++++++++++++++------------------- 2 files changed, 25 insertions(+), 19 deletions(-) (limited to 'include') diff --git a/arch/x86_64/kernel/setup64.c b/arch/x86_64/kernel/setup64.c index e85cfbb49b63..491361752c70 100644 --- a/arch/x86_64/kernel/setup64.c +++ b/arch/x86_64/kernel/setup64.c @@ -121,7 +121,10 @@ void pda_init(int cpu) /* Setup up data that may be needed in __get_free_pages early */ asm volatile("movl %0,%%fs ; movl %0,%%gs" :: "r" (0)); + /* Memory clobbers used to order PDA accessed */ + mb(); wrmsrl(MSR_GS_BASE, pda); + mb(); pda->cpunumber = cpu; pda->irqcount = -1; diff --git a/include/asm-x86_64/pda.h b/include/asm-x86_64/pda.h index b47c3df9ed1d..55e21da96e7a 100644 --- a/include/asm-x86_64/pda.h +++ b/include/asm-x86_64/pda.h @@ -36,40 +36,43 @@ extern struct x8664_pda boot_cpu_pda[]; * There is no fast way to get the base address of the PDA, all the accesses * have to mention %fs/%gs. So it needs to be done this Torvaldian way. */ -#define sizeof_field(type,field) (sizeof(((type *)0)->field)) -#define typeof_field(type,field) typeof(((type *)0)->field) - extern void __bad_pda_field(void); +/* proxy_pda doesn't actually exist, but tell gcc it is accessed + for all PDA accesses so it gets read/write dependencies right. */ +extern struct x8664_pda _proxy_pda; + #define pda_offset(field) offsetof(struct x8664_pda, field) #define pda_to_op(op,field,val) do { \ - typedef typeof_field(struct x8664_pda, field) T__; \ - switch (sizeof_field(struct x8664_pda, field)) { \ + typedef typeof(_proxy_pda.field) T__; \ + switch (sizeof(_proxy_pda.field)) { \ case 2: \ -asm volatile(op "w %0,%%gs:%P1"::"ri" ((T__)val),"i"(pda_offset(field)):"memory"); break; \ +asm(op "w %1,%%gs:%P2" : "+m" (_proxy_pda.field) : \ + "ri" ((T__)val),"i"(pda_offset(field))); break; \ case 4: \ -asm volatile(op "l %0,%%gs:%P1"::"ri" ((T__)val),"i"(pda_offset(field)):"memory"); break; \ +asm(op "l %1,%%gs:%P2" : "+m" (_proxy_pda.field) : \ + "ri" ((T__)val),"i"(pda_offset(field))); break; \ case 8: \ -asm volatile(op "q %0,%%gs:%P1"::"ri" ((T__)val),"i"(pda_offset(field)):"memory"); break; \ - default: __bad_pda_field(); \ +asm(op "q %1,%%gs:%P2": "+m" (_proxy_pda.field) : \ + "ri" ((T__)val),"i"(pda_offset(field))); break; \ +default: __bad_pda_field(); \ } \ } while (0) -/* - * AK: PDA read accesses should be neither volatile nor have an memory clobber. - * Unfortunately removing them causes all hell to break lose currently. - */ #define pda_from_op(op,field) ({ \ - typeof_field(struct x8664_pda, field) ret__; \ - switch (sizeof_field(struct x8664_pda, field)) { \ + typeof(_proxy_pda.field) ret__; \ + switch (sizeof(_proxy_pda.field)) { \ case 2: \ -asm volatile(op "w %%gs:%P1,%0":"=r" (ret__):"i"(pda_offset(field)):"memory"); break;\ +asm(op "w %%gs:%P1,%0":"=r" (ret__):\ + "i" (pda_offset(field)), "m" (_proxy_pda.field)); break;\ case 4: \ -asm volatile(op "l %%gs:%P1,%0":"=r" (ret__):"i"(pda_offset(field)):"memory"); break;\ +asm(op "l %%gs:%P1,%0":"=r" (ret__):\ + "i" (pda_offset(field)), "m" (_proxy_pda.field)); break;\ case 8: \ -asm volatile(op "q %%gs:%P1,%0":"=r" (ret__):"i"(pda_offset(field)):"memory"); break;\ - default: __bad_pda_field(); \ +asm(op "q %%gs:%P1,%0":"=r" (ret__):\ + "i" (pda_offset(field)), "m" (_proxy_pda.field)); break;\ +default: __bad_pda_field(); \ } \ ret__; }) -- cgit v1.2.3 From 575400d1b483fbe9e03c68758059bfaf4e4768d1 Mon Sep 17 00:00:00 2001 From: "H. Peter Anvin" Date: Tue, 26 Sep 2006 10:52:38 +0200 Subject: [PATCH] i386: Fix the EDD code misparsing the command line The EDD code would scan the command line as a fixed array, without taking account of either whitespace, null-termination, the old command-line protocol, late overrides early, or the fact that the command line may not be reachable from INITSEG. This should fix those problems, and enable us to use a longer command line. Signed-off-by: H. Peter Anvin Signed-off-by: Andi Kleen --- arch/i386/boot/edd.S | 97 ++++++++++++++++++++++++++++++++++++++++------------ include/linux/edd.h | 1 + 2 files changed, 76 insertions(+), 22 deletions(-) (limited to 'include') diff --git a/arch/i386/boot/edd.S b/arch/i386/boot/edd.S index 4b84ea216f2b..34321368011a 100644 --- a/arch/i386/boot/edd.S +++ b/arch/i386/boot/edd.S @@ -15,42 +15,95 @@ #include #if defined(CONFIG_EDD) || defined(CONFIG_EDD_MODULE) + +# It is assumed that %ds == INITSEG here + movb $0, (EDD_MBR_SIG_NR_BUF) movb $0, (EDDNR) -# Check the command line for two options: +# Check the command line for options: # edd=of disables EDD completely (edd=off) # edd=sk skips the MBR test (edd=skipmbr) +# edd=on re-enables EDD (edd=on) + pushl %esi - cmpl $0, %cs:cmd_line_ptr - jz done_cl + movw $edd_mbr_sig_start, %di # Default to edd=on + movl %cs:(cmd_line_ptr), %esi -# ds:esi has the pointer to the command line now - movl $(COMMAND_LINE_SIZE-7), %ecx -# loop through kernel command line one byte at a time -cl_loop: - cmpl $EDD_CL_EQUALS, (%si) + andl %esi, %esi + jz old_cl # Old boot protocol? + +# Convert to a real-mode pointer in fs:si + movl %esi, %eax + shrl $4, %eax + movw %ax, %fs + andw $0xf, %si + jmp have_cl_pointer + +# Old-style boot protocol? +old_cl: + push %ds # aka INITSEG + pop %fs + + cmpw $0xa33f, (0x20) + jne done_cl # No command line at all? + movw (0x22), %si # Pointer relative to INITSEG + +# fs:si has the pointer to the command line now +have_cl_pointer: + +# Loop through kernel command line one byte at a time. Just in +# case the loader is buggy and failed to null-terminate the command line +# terminate if we get close enough to the end of the segment that we +# cannot fit "edd=XX"... +cl_atspace: + cmpw $-5, %si # Watch for segment wraparound + jae done_cl + movl %fs:(%si), %eax + andb %al, %al # End of line? + jz done_cl + cmpl $EDD_CL_EQUALS, %eax jz found_edd_equals - incl %esi - loop cl_loop - jmp done_cl + cmpb $0x20, %al # <= space consider whitespace + ja cl_skipword + incw %si + jmp cl_atspace + +cl_skipword: + cmpw $-5, %si # Watch for segment wraparound + jae done_cl + movb %fs:(%si), %al # End of string? + andb %al, %al + jz done_cl + cmpb $0x20, %al + jbe cl_atspace + incw %si + jmp cl_skipword + found_edd_equals: # only looking at first two characters after equals - addl $4, %esi - cmpw $EDD_CL_OFF, (%si) # edd=of - jz do_edd_off - cmpw $EDD_CL_SKIP, (%si) # edd=sk - jz do_edd_skipmbr - jmp done_cl +# late overrides early on the command line, so keep going after finding something + movw %fs:4(%si), %ax + cmpw $EDD_CL_OFF, %ax # edd=of + je do_edd_off + cmpw $EDD_CL_SKIP, %ax # edd=sk + je do_edd_skipmbr + cmpw $EDD_CL_ON, %ax # edd=on + je do_edd_on + jmp cl_skipword do_edd_skipmbr: - popl %esi - jmp edd_start + movw $edd_start, %di + jmp cl_skipword do_edd_off: - popl %esi - jmp edd_done + movw $edd_done, %di + jmp cl_skipword +do_edd_on: + movw $edd_mbr_sig_start, %di + jmp cl_skipword + done_cl: popl %esi - + jmpw *%di # Read the first sector of each BIOS disk device and store the 4-byte signature edd_mbr_sig_start: diff --git a/include/linux/edd.h b/include/linux/edd.h index 162512b886f7..b2b3e68aa512 100644 --- a/include/linux/edd.h +++ b/include/linux/edd.h @@ -52,6 +52,7 @@ #define EDD_CL_EQUALS 0x3d646465 /* "edd=" */ #define EDD_CL_OFF 0x666f /* "of" for off */ #define EDD_CL_SKIP 0x6b73 /* "sk" for skipmbr */ +#define EDD_CL_ON 0x6e6f /* "on" for on */ #ifndef __ASSEMBLY__ -- cgit v1.2.3 From f574164491d00d28b727d713685fb5edc9138200 Mon Sep 17 00:00:00 2001 From: Keith Owens Date: Tue, 26 Sep 2006 10:52:38 +0200 Subject: [PATCH] Remove most of the special cases for the debug IST stack Remove most of the special cases for the debug IST stack. This is a follow on clean up patch, it requires the bug fix patch that adds orig_ist. Signed-off-by: Keith Owens Signed-off-by: Andi Kleen --- arch/x86_64/kernel/setup64.c | 21 +++++---------------- arch/x86_64/kernel/traps.c | 21 +-------------------- include/asm-x86_64/pda.h | 3 --- 3 files changed, 6 insertions(+), 39 deletions(-) (limited to 'include') diff --git a/arch/x86_64/kernel/setup64.c b/arch/x86_64/kernel/setup64.c index 491361752c70..9332d2361e08 100644 --- a/arch/x86_64/kernel/setup64.c +++ b/arch/x86_64/kernel/setup64.c @@ -237,28 +237,17 @@ void __cpuinit cpu_init (void) * set up and load the per-CPU TSS */ for (v = 0; v < N_EXCEPTION_STACKS; v++) { + static const unsigned int order[N_EXCEPTION_STACKS] = { + [0 ... N_EXCEPTION_STACKS - 1] = EXCEPTION_STACK_ORDER, + [DEBUG_STACK - 1] = DEBUG_STACK_ORDER + }; if (cpu) { - static const unsigned int order[N_EXCEPTION_STACKS] = { - [0 ... N_EXCEPTION_STACKS - 1] = EXCEPTION_STACK_ORDER, - [DEBUG_STACK - 1] = DEBUG_STACK_ORDER - }; - estacks = (char *)__get_free_pages(GFP_ATOMIC, order[v]); if (!estacks) panic("Cannot allocate exception stack %ld %d\n", v, cpu); } - switch (v + 1) { -#if DEBUG_STKSZ > EXCEPTION_STKSZ - case DEBUG_STACK: - cpu_pda(cpu)->debugstack = (unsigned long)estacks; - estacks += DEBUG_STKSZ; - break; -#endif - default: - estacks += EXCEPTION_STKSZ; - break; - } + estacks += PAGE_SIZE << order[v]; orig_ist->ist[v] = t->ist[v] = (unsigned long)estacks; } diff --git a/arch/x86_64/kernel/traps.c b/arch/x86_64/kernel/traps.c index 38bc821e457b..fb8486eca1b6 100644 --- a/arch/x86_64/kernel/traps.c +++ b/arch/x86_64/kernel/traps.c @@ -162,26 +162,7 @@ static unsigned long *in_exception_stack(unsigned cpu, unsigned long stack, * 'stack' is in one of them: */ for (k = 0; k < N_EXCEPTION_STACKS; k++) { - unsigned long end; - - /* - * set 'end' to the end of the exception stack. - */ - switch (k + 1) { - /* - * TODO: this block is not needed i think, because - * setup64.c:cpu_init() sets up t->ist[DEBUG_STACK] - * properly too. - */ -#if DEBUG_STKSZ > EXCEPTION_STKSZ - case DEBUG_STACK: - end = cpu_pda(cpu)->debugstack + DEBUG_STKSZ; - break; -#endif - default: - end = per_cpu(orig_ist, cpu).ist[k]; - break; - } + unsigned long end = per_cpu(orig_ist, cpu).ist[k]; /* * Is 'stack' above this exception frame's end? * If yes then skip to the next frame. diff --git a/include/asm-x86_64/pda.h b/include/asm-x86_64/pda.h index 55e21da96e7a..e2b23e337b94 100644 --- a/include/asm-x86_64/pda.h +++ b/include/asm-x86_64/pda.h @@ -13,9 +13,6 @@ struct x8664_pda { unsigned long data_offset; /* Per cpu data offset from linker address */ unsigned long kernelstack; /* top of kernel stack for current */ unsigned long oldrsp; /* user rsp for system call */ -#if DEBUG_STKSZ > EXCEPTION_STKSZ - unsigned long debugstack; /* #DB/#BP stack. */ -#endif int irqcount; /* Irq nesting counter. Starts with -1 */ int cpunumber; /* Logical CPU number */ char *irqstackptr; /* top of irqstack */ -- cgit v1.2.3 From 4bfaaef01a1badb9e8ffb0c0a37cd2379008d21f Mon Sep 17 00:00:00 2001 From: Magnus Damm Date: Tue, 26 Sep 2006 10:52:38 +0200 Subject: [PATCH] Avoid overwriting the current pgd (V4, x86_64) kexec: Avoid overwriting the current pgd (V4, x86_64) This patch upgrades the x86_64-specific kexec code to avoid overwriting the current pgd. Overwriting the current pgd is bad when CONFIG_CRASH_DUMP is used to start a secondary kernel that dumps the memory of the previous kernel. The code introduces a new set of page tables. These tables are used to provide an executable identity mapping without overwriting the current pgd. Signed-off-by: Magnus Damm Signed-off-by: Andi Kleen --- arch/x86_64/kernel/machine_kexec.c | 71 ++++++++------- arch/x86_64/kernel/relocate_kernel.S | 171 +++++++++++++++++++++++++++++++---- include/asm-x86_64/kexec.h | 29 ++++++ 3 files changed, 218 insertions(+), 53 deletions(-) (limited to 'include') diff --git a/arch/x86_64/kernel/machine_kexec.c b/arch/x86_64/kernel/machine_kexec.c index 2e94c072d84a..0497e3bd5bff 100644 --- a/arch/x86_64/kernel/machine_kexec.c +++ b/arch/x86_64/kernel/machine_kexec.c @@ -15,6 +15,15 @@ #include #include +#define PAGE_ALIGNED __attribute__ ((__aligned__(PAGE_SIZE))) +static u64 kexec_pgd[512] PAGE_ALIGNED; +static u64 kexec_pud0[512] PAGE_ALIGNED; +static u64 kexec_pmd0[512] PAGE_ALIGNED; +static u64 kexec_pte0[512] PAGE_ALIGNED; +static u64 kexec_pud1[512] PAGE_ALIGNED; +static u64 kexec_pmd1[512] PAGE_ALIGNED; +static u64 kexec_pte1[512] PAGE_ALIGNED; + static void init_level2_page(pmd_t *level2p, unsigned long addr) { unsigned long end_addr; @@ -144,32 +153,19 @@ static void load_segments(void) ); } -typedef NORET_TYPE void (*relocate_new_kernel_t)(unsigned long indirection_page, - unsigned long control_code_buffer, - unsigned long start_address, - unsigned long pgtable) ATTRIB_NORET; - -extern const unsigned char relocate_new_kernel[]; -extern const unsigned long relocate_new_kernel_size; - int machine_kexec_prepare(struct kimage *image) { - unsigned long start_pgtable, control_code_buffer; + unsigned long start_pgtable; int result; /* Calculate the offsets */ start_pgtable = page_to_pfn(image->control_code_page) << PAGE_SHIFT; - control_code_buffer = start_pgtable + PAGE_SIZE; /* Setup the identity mapped 64bit page table */ result = init_pgtable(image, start_pgtable); if (result) return result; - /* Place the code in the reboot code buffer */ - memcpy(__va(control_code_buffer), relocate_new_kernel, - relocate_new_kernel_size); - return 0; } @@ -184,28 +180,34 @@ void machine_kexec_cleanup(struct kimage *image) */ NORET_TYPE void machine_kexec(struct kimage *image) { - unsigned long page_list; - unsigned long control_code_buffer; - unsigned long start_pgtable; - relocate_new_kernel_t rnk; + unsigned long page_list[PAGES_NR]; + void *control_page; /* Interrupts aren't acceptable while we reboot */ local_irq_disable(); - /* Calculate the offsets */ - page_list = image->head; - start_pgtable = page_to_pfn(image->control_code_page) << PAGE_SHIFT; - control_code_buffer = start_pgtable + PAGE_SIZE; - - /* Set the low half of the page table to my identity mapped - * page table for kexec. Leave the high half pointing at the - * kernel pages. Don't bother to flush the global pages - * as that will happen when I fully switch to my identity mapped - * page table anyway. - */ - memcpy(__va(read_cr3()), __va(start_pgtable), PAGE_SIZE/2); - __flush_tlb(); - + control_page = page_address(image->control_code_page) + PAGE_SIZE; + memcpy(control_page, relocate_kernel, PAGE_SIZE); + + page_list[PA_CONTROL_PAGE] = __pa(control_page); + page_list[VA_CONTROL_PAGE] = (unsigned long)relocate_kernel; + page_list[PA_PGD] = __pa(kexec_pgd); + page_list[VA_PGD] = (unsigned long)kexec_pgd; + page_list[PA_PUD_0] = __pa(kexec_pud0); + page_list[VA_PUD_0] = (unsigned long)kexec_pud0; + page_list[PA_PMD_0] = __pa(kexec_pmd0); + page_list[VA_PMD_0] = (unsigned long)kexec_pmd0; + page_list[PA_PTE_0] = __pa(kexec_pte0); + page_list[VA_PTE_0] = (unsigned long)kexec_pte0; + page_list[PA_PUD_1] = __pa(kexec_pud1); + page_list[VA_PUD_1] = (unsigned long)kexec_pud1; + page_list[PA_PMD_1] = __pa(kexec_pmd1); + page_list[VA_PMD_1] = (unsigned long)kexec_pmd1; + page_list[PA_PTE_1] = __pa(kexec_pte1); + page_list[VA_PTE_1] = (unsigned long)kexec_pte1; + + page_list[PA_TABLE_PAGE] = + (unsigned long)__pa(page_address(image->control_code_page)); /* The segment registers are funny things, they have both a * visible and an invisible part. Whenever the visible part is @@ -222,9 +224,10 @@ NORET_TYPE void machine_kexec(struct kimage *image) */ set_gdt(phys_to_virt(0),0); set_idt(phys_to_virt(0),0); + /* now call it */ - rnk = (relocate_new_kernel_t) control_code_buffer; - (*rnk)(page_list, control_code_buffer, image->start, start_pgtable); + relocate_kernel((unsigned long)image->head, (unsigned long)page_list, + image->start); } /* crashkernel=size@addr specifies the location to reserve for diff --git a/arch/x86_64/kernel/relocate_kernel.S b/arch/x86_64/kernel/relocate_kernel.S index d24fa9b72a2b..14e95872c6a3 100644 --- a/arch/x86_64/kernel/relocate_kernel.S +++ b/arch/x86_64/kernel/relocate_kernel.S @@ -7,31 +7,169 @@ */ #include +#include +#include - /* - * Must be relocatable PIC code callable as a C function, that once - * it starts can not use the previous processes stack. - */ - .globl relocate_new_kernel +/* + * Must be relocatable PIC code callable as a C function + */ + +#define PTR(x) (x << 3) +#define PAGE_ALIGNED (1 << PAGE_SHIFT) +#define PAGE_ATTR 0x63 /* _PAGE_PRESENT|_PAGE_RW|_PAGE_ACCESSED|_PAGE_DIRTY */ + + .text + .align PAGE_ALIGNED .code64 + .globl relocate_kernel +relocate_kernel: + /* %rdi indirection_page + * %rsi page_list + * %rdx start address + */ + + /* map the control page at its virtual address */ + + movq $0x0000ff8000000000, %r10 /* mask */ + mov $(39 - 3), %cl /* bits to shift */ + movq PTR(VA_CONTROL_PAGE)(%rsi), %r11 /* address to map */ + + movq %r11, %r9 + andq %r10, %r9 + shrq %cl, %r9 + + movq PTR(VA_PGD)(%rsi), %r8 + addq %r8, %r9 + movq PTR(PA_PUD_0)(%rsi), %r8 + orq $PAGE_ATTR, %r8 + movq %r8, (%r9) + + shrq $9, %r10 + sub $9, %cl + + movq %r11, %r9 + andq %r10, %r9 + shrq %cl, %r9 + + movq PTR(VA_PUD_0)(%rsi), %r8 + addq %r8, %r9 + movq PTR(PA_PMD_0)(%rsi), %r8 + orq $PAGE_ATTR, %r8 + movq %r8, (%r9) + + shrq $9, %r10 + sub $9, %cl + + movq %r11, %r9 + andq %r10, %r9 + shrq %cl, %r9 + + movq PTR(VA_PMD_0)(%rsi), %r8 + addq %r8, %r9 + movq PTR(PA_PTE_0)(%rsi), %r8 + orq $PAGE_ATTR, %r8 + movq %r8, (%r9) + + shrq $9, %r10 + sub $9, %cl + + movq %r11, %r9 + andq %r10, %r9 + shrq %cl, %r9 + + movq PTR(VA_PTE_0)(%rsi), %r8 + addq %r8, %r9 + movq PTR(PA_CONTROL_PAGE)(%rsi), %r8 + orq $PAGE_ATTR, %r8 + movq %r8, (%r9) + + /* identity map the control page at its physical address */ + + movq $0x0000ff8000000000, %r10 /* mask */ + mov $(39 - 3), %cl /* bits to shift */ + movq PTR(PA_CONTROL_PAGE)(%rsi), %r11 /* address to map */ + + movq %r11, %r9 + andq %r10, %r9 + shrq %cl, %r9 + + movq PTR(VA_PGD)(%rsi), %r8 + addq %r8, %r9 + movq PTR(PA_PUD_1)(%rsi), %r8 + orq $PAGE_ATTR, %r8 + movq %r8, (%r9) + + shrq $9, %r10 + sub $9, %cl + + movq %r11, %r9 + andq %r10, %r9 + shrq %cl, %r9 + + movq PTR(VA_PUD_1)(%rsi), %r8 + addq %r8, %r9 + movq PTR(PA_PMD_1)(%rsi), %r8 + orq $PAGE_ATTR, %r8 + movq %r8, (%r9) + + shrq $9, %r10 + sub $9, %cl + + movq %r11, %r9 + andq %r10, %r9 + shrq %cl, %r9 + + movq PTR(VA_PMD_1)(%rsi), %r8 + addq %r8, %r9 + movq PTR(PA_PTE_1)(%rsi), %r8 + orq $PAGE_ATTR, %r8 + movq %r8, (%r9) + + shrq $9, %r10 + sub $9, %cl + + movq %r11, %r9 + andq %r10, %r9 + shrq %cl, %r9 + + movq PTR(VA_PTE_1)(%rsi), %r8 + addq %r8, %r9 + movq PTR(PA_CONTROL_PAGE)(%rsi), %r8 + orq $PAGE_ATTR, %r8 + movq %r8, (%r9) + relocate_new_kernel: - /* %rdi page_list - * %rsi reboot_code_buffer + /* %rdi indirection_page + * %rsi page_list * %rdx start address - * %rcx page_table - * %r8 arg5 - * %r9 arg6 */ /* zero out flags, and disable interrupts */ pushq $0 popfq - /* set a new stack at the bottom of our page... */ - lea 4096(%rsi), %rsp + /* get physical address of control page now */ + /* this is impossible after page table switch */ + movq PTR(PA_CONTROL_PAGE)(%rsi), %r8 + + /* get physical address of page table now too */ + movq PTR(PA_TABLE_PAGE)(%rsi), %rcx - /* store the parameters back on the stack */ - pushq %rdx /* store the start address */ + /* switch to new set of page tables */ + movq PTR(PA_PGD)(%rsi), %r9 + movq %r9, %cr3 + + /* setup a new stack at the end of the physical control page */ + lea 4096(%r8), %rsp + + /* jump to identity mapped page */ + addq $(identity_mapped - relocate_kernel), %r8 + pushq %r8 + ret + +identity_mapped: + /* store the start address on the stack */ + pushq %rdx /* Set cr0 to a known state: * 31 1 == Paging enabled @@ -136,8 +274,3 @@ relocate_new_kernel: xorq %r15, %r15 ret -relocate_new_kernel_end: - - .globl relocate_new_kernel_size -relocate_new_kernel_size: - .quad relocate_new_kernel_end - relocate_new_kernel diff --git a/include/asm-x86_64/kexec.h b/include/asm-x86_64/kexec.h index c564bae03433..5fab957e1091 100644 --- a/include/asm-x86_64/kexec.h +++ b/include/asm-x86_64/kexec.h @@ -1,6 +1,27 @@ #ifndef _X86_64_KEXEC_H #define _X86_64_KEXEC_H +#define PA_CONTROL_PAGE 0 +#define VA_CONTROL_PAGE 1 +#define PA_PGD 2 +#define VA_PGD 3 +#define PA_PUD_0 4 +#define VA_PUD_0 5 +#define PA_PMD_0 6 +#define VA_PMD_0 7 +#define PA_PTE_0 8 +#define VA_PTE_0 9 +#define PA_PUD_1 10 +#define VA_PUD_1 11 +#define PA_PMD_1 12 +#define VA_PMD_1 13 +#define PA_PTE_1 14 +#define VA_PTE_1 15 +#define PA_TABLE_PAGE 16 +#define PAGES_NR 17 + +#ifndef __ASSEMBLY__ + #include #include @@ -64,4 +85,12 @@ static inline void crash_setup_regs(struct pt_regs *newregs, newregs->rip = (unsigned long)current_text_addr(); } } + +NORET_TYPE void +relocate_kernel(unsigned long indirection_page, + unsigned long page_list, + unsigned long start_address) ATTRIB_NORET; + +#endif /* __ASSEMBLY__ */ + #endif /* _X86_64_KEXEC_H */ -- cgit v1.2.3 From 3566561bfadffcb5dbc85d576be80c0dbf2cccc9 Mon Sep 17 00:00:00 2001 From: Magnus Damm Date: Tue, 26 Sep 2006 10:52:38 +0200 Subject: [PATCH] i386: Avoid overwriting the current pgd (V4, i386) kexec: Avoid overwriting the current pgd (V4, i386) This patch upgrades the i386-specific kexec code to avoid overwriting the current pgd. Overwriting the current pgd is bad when CONFIG_CRASH_DUMP is used to start a secondary kernel that dumps the memory of the previous kernel. The code introduces a new set of page tables. These tables are used to provide an executable identity mapping without overwriting the current pgd. Signed-off-by: Magnus Damm Signed-off-by: Andi Kleen --- arch/i386/kernel/machine_kexec.c | 117 +++++++-------------------- arch/i386/kernel/relocate_kernel.S | 162 +++++++++++++++++++++++++++++++++---- include/asm-i386/kexec.h | 27 +++++++ 3 files changed, 201 insertions(+), 105 deletions(-) (limited to 'include') diff --git a/arch/i386/kernel/machine_kexec.c b/arch/i386/kernel/machine_kexec.c index 66c3dc99a655..91966bafb3dc 100644 --- a/arch/i386/kernel/machine_kexec.c +++ b/arch/i386/kernel/machine_kexec.c @@ -21,70 +21,13 @@ #include #define PAGE_ALIGNED __attribute__ ((__aligned__(PAGE_SIZE))) - -#define L0_ATTR (_PAGE_PRESENT | _PAGE_RW | _PAGE_ACCESSED | _PAGE_DIRTY) -#define L1_ATTR (_PAGE_PRESENT | _PAGE_RW | _PAGE_ACCESSED | _PAGE_DIRTY) -#define L2_ATTR (_PAGE_PRESENT) - -#define LEVEL0_SIZE (1UL << 12UL) - -#ifndef CONFIG_X86_PAE -#define LEVEL1_SIZE (1UL << 22UL) -static u32 pgtable_level1[1024] PAGE_ALIGNED; - -static void identity_map_page(unsigned long address) -{ - unsigned long level1_index, level2_index; - u32 *pgtable_level2; - - /* Find the current page table */ - pgtable_level2 = __va(read_cr3()); - - /* Find the indexes of the physical address to identity map */ - level1_index = (address % LEVEL1_SIZE)/LEVEL0_SIZE; - level2_index = address / LEVEL1_SIZE; - - /* Identity map the page table entry */ - pgtable_level1[level1_index] = address | L0_ATTR; - pgtable_level2[level2_index] = __pa(pgtable_level1) | L1_ATTR; - - /* Flush the tlb so the new mapping takes effect. - * Global tlb entries are not flushed but that is not an issue. - */ - load_cr3(pgtable_level2); -} - -#else -#define LEVEL1_SIZE (1UL << 21UL) -#define LEVEL2_SIZE (1UL << 30UL) -static u64 pgtable_level1[512] PAGE_ALIGNED; -static u64 pgtable_level2[512] PAGE_ALIGNED; - -static void identity_map_page(unsigned long address) -{ - unsigned long level1_index, level2_index, level3_index; - u64 *pgtable_level3; - - /* Find the current page table */ - pgtable_level3 = __va(read_cr3()); - - /* Find the indexes of the physical address to identity map */ - level1_index = (address % LEVEL1_SIZE)/LEVEL0_SIZE; - level2_index = (address % LEVEL2_SIZE)/LEVEL1_SIZE; - level3_index = address / LEVEL2_SIZE; - - /* Identity map the page table entry */ - pgtable_level1[level1_index] = address | L0_ATTR; - pgtable_level2[level2_index] = __pa(pgtable_level1) | L1_ATTR; - set_64bit(&pgtable_level3[level3_index], - __pa(pgtable_level2) | L2_ATTR); - - /* Flush the tlb so the new mapping takes effect. - * Global tlb entries are not flushed but that is not an issue. - */ - load_cr3(pgtable_level3); -} +static u32 kexec_pgd[1024] PAGE_ALIGNED; +#ifdef CONFIG_X86_PAE +static u32 kexec_pmd0[1024] PAGE_ALIGNED; +static u32 kexec_pmd1[1024] PAGE_ALIGNED; #endif +static u32 kexec_pte0[1024] PAGE_ALIGNED; +static u32 kexec_pte1[1024] PAGE_ALIGNED; static void set_idt(void *newidt, __u16 limit) { @@ -128,16 +71,6 @@ static void load_segments(void) #undef __STR } -typedef asmlinkage NORET_TYPE void (*relocate_new_kernel_t)( - unsigned long indirection_page, - unsigned long reboot_code_buffer, - unsigned long start_address, - unsigned int has_pae) ATTRIB_NORET; - -extern const unsigned char relocate_new_kernel[]; -extern void relocate_new_kernel_end(void); -extern const unsigned int relocate_new_kernel_size; - /* * A architecture hook called to validate the * proposed image and prepare the control pages @@ -170,25 +103,29 @@ void machine_kexec_cleanup(struct kimage *image) */ NORET_TYPE void machine_kexec(struct kimage *image) { - unsigned long page_list; - unsigned long reboot_code_buffer; - - relocate_new_kernel_t rnk; + unsigned long page_list[PAGES_NR]; + void *control_page; /* Interrupts aren't acceptable while we reboot */ local_irq_disable(); - /* Compute some offsets */ - reboot_code_buffer = page_to_pfn(image->control_code_page) - << PAGE_SHIFT; - page_list = image->head; - - /* Set up an identity mapping for the reboot_code_buffer */ - identity_map_page(reboot_code_buffer); - - /* copy it out */ - memcpy((void *)reboot_code_buffer, relocate_new_kernel, - relocate_new_kernel_size); + control_page = page_address(image->control_code_page); + memcpy(control_page, relocate_kernel, PAGE_SIZE); + + page_list[PA_CONTROL_PAGE] = __pa(control_page); + page_list[VA_CONTROL_PAGE] = (unsigned long)relocate_kernel; + page_list[PA_PGD] = __pa(kexec_pgd); + page_list[VA_PGD] = (unsigned long)kexec_pgd; +#ifdef CONFIG_X86_PAE + page_list[PA_PMD_0] = __pa(kexec_pmd0); + page_list[VA_PMD_0] = (unsigned long)kexec_pmd0; + page_list[PA_PMD_1] = __pa(kexec_pmd1); + page_list[VA_PMD_1] = (unsigned long)kexec_pmd1; +#endif + page_list[PA_PTE_0] = __pa(kexec_pte0); + page_list[VA_PTE_0] = (unsigned long)kexec_pte0; + page_list[PA_PTE_1] = __pa(kexec_pte1); + page_list[VA_PTE_1] = (unsigned long)kexec_pte1; /* The segment registers are funny things, they have both a * visible and an invisible part. Whenever the visible part is @@ -207,8 +144,8 @@ NORET_TYPE void machine_kexec(struct kimage *image) set_idt(phys_to_virt(0),0); /* now call it */ - rnk = (relocate_new_kernel_t) reboot_code_buffer; - (*rnk)(page_list, reboot_code_buffer, image->start, cpu_has_pae); + relocate_kernel((unsigned long)image->head, (unsigned long)page_list, + image->start, cpu_has_pae); } /* crashkernel=size@addr specifies the location to reserve for diff --git a/arch/i386/kernel/relocate_kernel.S b/arch/i386/kernel/relocate_kernel.S index d312616effa1..f151d6fae462 100644 --- a/arch/i386/kernel/relocate_kernel.S +++ b/arch/i386/kernel/relocate_kernel.S @@ -7,16 +7,138 @@ */ #include +#include +#include + +/* + * Must be relocatable PIC code callable as a C function + */ + +#define PTR(x) (x << 2) +#define PAGE_ALIGNED (1 << PAGE_SHIFT) +#define PAGE_ATTR 0x63 /* _PAGE_PRESENT|_PAGE_RW|_PAGE_ACCESSED|_PAGE_DIRTY */ +#define PAE_PGD_ATTR 0x01 /* _PAGE_PRESENT */ + + .text + .align PAGE_ALIGNED + .globl relocate_kernel +relocate_kernel: + movl 8(%esp), %ebp /* list of pages */ + +#ifdef CONFIG_X86_PAE + /* map the control page at its virtual address */ + + movl PTR(VA_PGD)(%ebp), %edi + movl PTR(VA_CONTROL_PAGE)(%ebp), %eax + andl $0xc0000000, %eax + shrl $27, %eax + addl %edi, %eax + + movl PTR(PA_PMD_0)(%ebp), %edx + orl $PAE_PGD_ATTR, %edx + movl %edx, (%eax) + + movl PTR(VA_PMD_0)(%ebp), %edi + movl PTR(VA_CONTROL_PAGE)(%ebp), %eax + andl $0x3fe00000, %eax + shrl $18, %eax + addl %edi, %eax + + movl PTR(PA_PTE_0)(%ebp), %edx + orl $PAGE_ATTR, %edx + movl %edx, (%eax) + + movl PTR(VA_PTE_0)(%ebp), %edi + movl PTR(VA_CONTROL_PAGE)(%ebp), %eax + andl $0x001ff000, %eax + shrl $9, %eax + addl %edi, %eax + + movl PTR(PA_CONTROL_PAGE)(%ebp), %edx + orl $PAGE_ATTR, %edx + movl %edx, (%eax) + + /* identity map the control page at its physical address */ + + movl PTR(VA_PGD)(%ebp), %edi + movl PTR(PA_CONTROL_PAGE)(%ebp), %eax + andl $0xc0000000, %eax + shrl $27, %eax + addl %edi, %eax + + movl PTR(PA_PMD_1)(%ebp), %edx + orl $PAE_PGD_ATTR, %edx + movl %edx, (%eax) + + movl PTR(VA_PMD_1)(%ebp), %edi + movl PTR(PA_CONTROL_PAGE)(%ebp), %eax + andl $0x3fe00000, %eax + shrl $18, %eax + addl %edi, %eax + + movl PTR(PA_PTE_1)(%ebp), %edx + orl $PAGE_ATTR, %edx + movl %edx, (%eax) + + movl PTR(VA_PTE_1)(%ebp), %edi + movl PTR(PA_CONTROL_PAGE)(%ebp), %eax + andl $0x001ff000, %eax + shrl $9, %eax + addl %edi, %eax + + movl PTR(PA_CONTROL_PAGE)(%ebp), %edx + orl $PAGE_ATTR, %edx + movl %edx, (%eax) +#else + /* map the control page at its virtual address */ + + movl PTR(VA_PGD)(%ebp), %edi + movl PTR(VA_CONTROL_PAGE)(%ebp), %eax + andl $0xffc00000, %eax + shrl $20, %eax + addl %edi, %eax + + movl PTR(PA_PTE_0)(%ebp), %edx + orl $PAGE_ATTR, %edx + movl %edx, (%eax) + + movl PTR(VA_PTE_0)(%ebp), %edi + movl PTR(VA_CONTROL_PAGE)(%ebp), %eax + andl $0x003ff000, %eax + shrl $10, %eax + addl %edi, %eax + + movl PTR(PA_CONTROL_PAGE)(%ebp), %edx + orl $PAGE_ATTR, %edx + movl %edx, (%eax) + + /* identity map the control page at its physical address */ + + movl PTR(VA_PGD)(%ebp), %edi + movl PTR(PA_CONTROL_PAGE)(%ebp), %eax + andl $0xffc00000, %eax + shrl $20, %eax + addl %edi, %eax + + movl PTR(PA_PTE_1)(%ebp), %edx + orl $PAGE_ATTR, %edx + movl %edx, (%eax) + + movl PTR(VA_PTE_1)(%ebp), %edi + movl PTR(PA_CONTROL_PAGE)(%ebp), %eax + andl $0x003ff000, %eax + shrl $10, %eax + addl %edi, %eax + + movl PTR(PA_CONTROL_PAGE)(%ebp), %edx + orl $PAGE_ATTR, %edx + movl %edx, (%eax) +#endif - /* - * Must be relocatable PIC code callable as a C function, that once - * it starts can not use the previous processes stack. - */ - .globl relocate_new_kernel relocate_new_kernel: /* read the arguments and say goodbye to the stack */ movl 4(%esp), %ebx /* page_list */ - movl 8(%esp), %ebp /* reboot_code_buffer */ + movl 8(%esp), %ebp /* list of pages */ movl 12(%esp), %edx /* start address */ movl 16(%esp), %ecx /* cpu_has_pae */ @@ -24,11 +146,26 @@ relocate_new_kernel: pushl $0 popfl - /* set a new stack at the bottom of our page... */ - lea 4096(%ebp), %esp + /* get physical address of control page now */ + /* this is impossible after page table switch */ + movl PTR(PA_CONTROL_PAGE)(%ebp), %edi - /* store the parameters back on the stack */ - pushl %edx /* store the start address */ + /* switch to new set of page tables */ + movl PTR(PA_PGD)(%ebp), %eax + movl %eax, %cr3 + + /* setup a new stack at the end of the physical control page */ + lea 4096(%edi), %esp + + /* jump to identity mapped page */ + movl %edi, %eax + addl $(identity_mapped - relocate_kernel), %eax + pushl %eax + ret + +identity_mapped: + /* store the start address on the stack */ + pushl %edx /* Set cr0 to a known state: * 31 0 == Paging disabled @@ -113,8 +250,3 @@ relocate_new_kernel: xorl %edi, %edi xorl %ebp, %ebp ret -relocate_new_kernel_end: - - .globl relocate_new_kernel_size -relocate_new_kernel_size: - .long relocate_new_kernel_end - relocate_new_kernel diff --git a/include/asm-i386/kexec.h b/include/asm-i386/kexec.h index 53f0e06672dc..4dfc9f5ed031 100644 --- a/include/asm-i386/kexec.h +++ b/include/asm-i386/kexec.h @@ -1,6 +1,26 @@ #ifndef _I386_KEXEC_H #define _I386_KEXEC_H +#define PA_CONTROL_PAGE 0 +#define VA_CONTROL_PAGE 1 +#define PA_PGD 2 +#define VA_PGD 3 +#define PA_PTE_0 4 +#define VA_PTE_0 5 +#define PA_PTE_1 6 +#define VA_PTE_1 7 +#ifdef CONFIG_X86_PAE +#define PA_PMD_0 8 +#define VA_PMD_0 9 +#define PA_PMD_1 10 +#define VA_PMD_1 11 +#define PAGES_NR 12 +#else +#define PAGES_NR 8 +#endif + +#ifndef __ASSEMBLY__ + #include #include #include @@ -72,5 +92,12 @@ static inline void crash_setup_regs(struct pt_regs *newregs, newregs->eip = (unsigned long)current_text_addr(); } } +asmlinkage NORET_TYPE void +relocate_kernel(unsigned long indirection_page, + unsigned long control_page, + unsigned long start_address, + unsigned int has_pae) ATTRIB_NORET; + +#endif /* __ASSEMBLY__ */ #endif /* _I386_KEXEC_H */ -- cgit v1.2.3 From 29a9af60e2120f874d0c600bf9e27617254a0488 Mon Sep 17 00:00:00 2001 From: Arjan van de Ven Date: Tue, 26 Sep 2006 10:52:38 +0200 Subject: [PATCH] Add comments to the PDA structure to annotate offsets Change the comments in the pda structure to make the first fields to have their offset documented and to have the comments aligned. The stack protector series needs a field at offset 40 (gcc ABI); annotate upto 40 for that reason. Signed-off-by: Arjan van de Ven Signed-off-by: Ingo Molnar Signed-off-by: Andi Kleen CC: Andi Kleen --- include/asm-x86_64/pda.h | 15 ++++++++------- 1 file changed, 8 insertions(+), 7 deletions(-) (limited to 'include') diff --git a/include/asm-x86_64/pda.h b/include/asm-x86_64/pda.h index e2b23e337b94..6794ffaae433 100644 --- a/include/asm-x86_64/pda.h +++ b/include/asm-x86_64/pda.h @@ -9,13 +9,14 @@ /* Per processor datastructure. %gs points to it while the kernel runs */ struct x8664_pda { - struct task_struct *pcurrent; /* Current process */ - unsigned long data_offset; /* Per cpu data offset from linker address */ - unsigned long kernelstack; /* top of kernel stack for current */ - unsigned long oldrsp; /* user rsp for system call */ - int irqcount; /* Irq nesting counter. Starts with -1 */ - int cpunumber; /* Logical CPU number */ - char *irqstackptr; /* top of irqstack */ + struct task_struct *pcurrent; /* 0 Current process */ + unsigned long data_offset; /* 8 Per cpu data offset from linker + address */ + unsigned long kernelstack; /* 16 top of kernel stack for current */ + unsigned long oldrsp; /* 24 user rsp for system call */ + int irqcount; /* 32 Irq nesting counter. Starts with -1 */ + int cpunumber; /* 36 Logical CPU number */ + char *irqstackptr; /* 40 top of irqstack */ int nodenumber; /* number of current node */ unsigned int __softirq_pending; unsigned int __nmi_count; /* number of NMI on this CPUs */ -- cgit v1.2.3 From 0a4254058037eb172758961d0a5b94f4320a1425 Mon Sep 17 00:00:00 2001 From: Arjan van de Ven Date: Tue, 26 Sep 2006 10:52:38 +0200 Subject: [PATCH] Add the canary field to the PDA area and the task struct This patch adds the per thread cookie field to the task struct and the PDA. Also it makes sure that the PDA value gets the new cookie value at context switch, and that a new task gets a new cookie at task creation time. Signed-off-by: Arjan van Ven Signed-off-by: Ingo Molnar Signed-off-by: Andi Kleen CC: Andi Kleen --- arch/x86_64/kernel/process.c | 8 ++++++++ include/asm-x86_64/pda.h | 7 ++++++- include/linux/sched.h | 5 +++++ kernel/fork.c | 5 +++++ 4 files changed, 24 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/arch/x86_64/kernel/process.c b/arch/x86_64/kernel/process.c index 9e9a70e50c72..fba8dfeda67c 100644 --- a/arch/x86_64/kernel/process.c +++ b/arch/x86_64/kernel/process.c @@ -625,6 +625,14 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p) unlazy_fpu(prev_p); write_pda(kernelstack, task_stack_page(next_p) + THREAD_SIZE - PDA_STACKOFFSET); +#ifdef CONFIG_CC_STACKPROTECTOR + write_pda(stack_canary, next_p->stack_canary); + /* + * Build time only check to make sure the stack_canary is at + * offset 40 in the pda; this is a gcc ABI requirement + */ + BUILD_BUG_ON(offsetof(struct x8664_pda, stack_canary) != 40); +#endif /* * Now maybe reload the debug registers and handle I/O bitmaps diff --git a/include/asm-x86_64/pda.h b/include/asm-x86_64/pda.h index 6794ffaae433..e7773e0af865 100644 --- a/include/asm-x86_64/pda.h +++ b/include/asm-x86_64/pda.h @@ -16,7 +16,12 @@ struct x8664_pda { unsigned long oldrsp; /* 24 user rsp for system call */ int irqcount; /* 32 Irq nesting counter. Starts with -1 */ int cpunumber; /* 36 Logical CPU number */ - char *irqstackptr; /* 40 top of irqstack */ +#ifdef CONFIG_CC_STACKPROTECTOR + unsigned long stack_canary; /* 40 stack canary value */ + /* gcc-ABI: this canary MUST be at + offset 40!!! */ +#endif + char *irqstackptr; int nodenumber; /* number of current node */ unsigned int __softirq_pending; unsigned int __nmi_count; /* number of NMI on this CPUs */ diff --git a/include/linux/sched.h b/include/linux/sched.h index 807556c5bcd2..9d4aa7f95bc8 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -819,6 +819,11 @@ struct task_struct { unsigned did_exec:1; pid_t pid; pid_t tgid; + +#ifdef CONFIG_CC_STACKPROTECTOR + /* Canary value for the -fstack-protector gcc feature */ + unsigned long stack_canary; +#endif /* * pointers to (original) parent process, youngest child, younger sibling, * older sibling, respectively. (p->father can be replaced with diff --git a/kernel/fork.c b/kernel/fork.c index f9b014e3e700..a0dad84567c9 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -45,6 +45,7 @@ #include #include #include +#include #include #include @@ -175,6 +176,10 @@ static struct task_struct *dup_task_struct(struct task_struct *orig) tsk->thread_info = ti; setup_thread_stack(tsk, orig); +#ifdef CONFIG_CC_STACKPROTECTOR + tsk->stack_canary = get_random_int(); +#endif + /* One for us, one for whoever does the "release_task()" (usually parent) */ atomic_set(&tsk->usage,2); atomic_set(&tsk->fs_excl, 0); -- cgit v1.2.3 From baf5695dd1a49bb48a3daf08726d7f243f42e97e Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Tue, 26 Sep 2006 10:52:39 +0200 Subject: [PATCH] Use %c instead of %P modifier in pda access Apparently that is the more official way to get numbers without $ in inline assembly Signed-off-by: Andi Kleen --- include/asm-x86_64/pda.h | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) (limited to 'include') diff --git a/include/asm-x86_64/pda.h b/include/asm-x86_64/pda.h index e7773e0af865..c2aac96ac323 100644 --- a/include/asm-x86_64/pda.h +++ b/include/asm-x86_64/pda.h @@ -51,13 +51,13 @@ extern struct x8664_pda _proxy_pda; typedef typeof(_proxy_pda.field) T__; \ switch (sizeof(_proxy_pda.field)) { \ case 2: \ -asm(op "w %1,%%gs:%P2" : "+m" (_proxy_pda.field) : \ +asm(op "w %1,%%gs:%c2" : "+m" (_proxy_pda.field) : \ "ri" ((T__)val),"i"(pda_offset(field))); break; \ case 4: \ -asm(op "l %1,%%gs:%P2" : "+m" (_proxy_pda.field) : \ +asm(op "l %1,%%gs:%c2" : "+m" (_proxy_pda.field) : \ "ri" ((T__)val),"i"(pda_offset(field))); break; \ case 8: \ -asm(op "q %1,%%gs:%P2": "+m" (_proxy_pda.field) : \ +asm(op "q %1,%%gs:%c2": "+m" (_proxy_pda.field) : \ "ri" ((T__)val),"i"(pda_offset(field))); break; \ default: __bad_pda_field(); \ } \ @@ -67,13 +67,13 @@ default: __bad_pda_field(); \ typeof(_proxy_pda.field) ret__; \ switch (sizeof(_proxy_pda.field)) { \ case 2: \ -asm(op "w %%gs:%P1,%0":"=r" (ret__):\ +asm(op "w %%gs:%c1,%0":"=r" (ret__):\ "i" (pda_offset(field)), "m" (_proxy_pda.field)); break;\ case 4: \ -asm(op "l %%gs:%P1,%0":"=r" (ret__):\ +asm(op "l %%gs:%c1,%0":"=r" (ret__):\ "i" (pda_offset(field)), "m" (_proxy_pda.field)); break;\ case 8: \ -asm(op "q %%gs:%P1,%0":"=r" (ret__):\ +asm(op "q %%gs:%c1,%0":"=r" (ret__):\ "i" (pda_offset(field)), "m" (_proxy_pda.field)); break;\ default: __bad_pda_field(); \ } \ -- cgit v1.2.3 From 85691f135db78f3548107a0abe383dfab3bc38fa Mon Sep 17 00:00:00 2001 From: Jeremy Fitzhardinge Date: Tue, 26 Sep 2006 10:52:39 +0200 Subject: [PATCH] Type checking for write_pda() I just added type checking for assignments the PDA in the i386 PDA code. Here's the x86-64 equivalent. (Obviously this doesn't contain the latest x86-64 PDA change.) Signed-off-by: Jeremy Fitzhardinge Signed-off-by: Andi Kleen --- include/asm-x86_64/pda.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/asm-x86_64/pda.h b/include/asm-x86_64/pda.h index c2aac96ac323..5dadb201f769 100644 --- a/include/asm-x86_64/pda.h +++ b/include/asm-x86_64/pda.h @@ -49,7 +49,8 @@ extern struct x8664_pda _proxy_pda; #define pda_to_op(op,field,val) do { \ typedef typeof(_proxy_pda.field) T__; \ - switch (sizeof(_proxy_pda.field)) { \ + if (0) { T__ tmp__; tmp__ = (val); } \ + switch (sizeof(_proxy_pda.field)) { \ case 2: \ asm(op "w %1,%%gs:%c2" : "+m" (_proxy_pda.field) : \ "ri" ((T__)val),"i"(pda_offset(field))); break; \ -- cgit v1.2.3 From 0da5db313317e3195482d3e660a1074857374a89 Mon Sep 17 00:00:00 2001 From: Rusty Russell Date: Tue, 26 Sep 2006 10:52:39 +0200 Subject: [PATCH] i386: Abstract sensitive instructions Abstract sensitive instructions in assembler code, replacing them with macros (which currently are #defined to the native versions). We use long names: assembler is case-insensitive, so if something goes wrong and macros do not expand, it would assemble anyway. Resulting object files are exactly the same as before. Signed-off-by: Rusty Russell Signed-off-by: Jeremy Fitzhardinge Signed-off-by: Andrew Morton Signed-off-by: Andi Kleen --- arch/i386/kernel/entry.S | 38 ++++++++++++++++++++++---------------- include/asm-i386/spinlock.h | 7 +++++-- 2 files changed, 27 insertions(+), 18 deletions(-) (limited to 'include') diff --git a/arch/i386/kernel/entry.S b/arch/i386/kernel/entry.S index 4b0845249222..3872fca5c74a 100644 --- a/arch/i386/kernel/entry.S +++ b/arch/i386/kernel/entry.S @@ -76,8 +76,15 @@ DF_MASK = 0x00000400 NT_MASK = 0x00004000 VM_MASK = 0x00020000 +/* These are replaces for paravirtualization */ +#define DISABLE_INTERRUPTS cli +#define ENABLE_INTERRUPTS sti +#define ENABLE_INTERRUPTS_SYSEXIT sti; sysexit +#define INTERRUPT_RETURN iret +#define GET_CR0_INTO_EAX movl %cr0, %eax + #ifdef CONFIG_PREEMPT -#define preempt_stop cli; TRACE_IRQS_OFF +#define preempt_stop DISABLE_INTERRUPTS; TRACE_IRQS_OFF #else #define preempt_stop #define resume_kernel restore_nocheck @@ -236,7 +243,7 @@ check_userspace: testl $(VM_MASK | 3), %eax jz resume_kernel ENTRY(resume_userspace) - cli # make sure we don't miss an interrupt + DISABLE_INTERRUPTS # make sure we don't miss an interrupt # setting need_resched or sigpending # between sampling and the iret movl TI_flags(%ebp), %ecx @@ -247,7 +254,7 @@ ENTRY(resume_userspace) #ifdef CONFIG_PREEMPT ENTRY(resume_kernel) - cli + DISABLE_INTERRUPTS cmpl $0,TI_preempt_count(%ebp) # non-zero preempt_count ? jnz restore_nocheck need_resched: @@ -275,7 +282,7 @@ sysenter_past_esp: * No need to follow this irqs on/off section: the syscall * disabled irqs and here we enable it straight after entry: */ - sti + ENABLE_INTERRUPTS pushl $(__USER_DS) CFI_ADJUST_CFA_OFFSET 4 /*CFI_REL_OFFSET ss, 0*/ @@ -320,7 +327,7 @@ sysenter_past_esp: jae syscall_badsys call *sys_call_table(,%eax,4) movl %eax,EAX(%esp) - cli + DISABLE_INTERRUPTS TRACE_IRQS_OFF movl TI_flags(%ebp), %ecx testw $_TIF_ALLWORK_MASK, %cx @@ -330,8 +337,7 @@ sysenter_past_esp: movl OLDESP(%esp), %ecx xorl %ebp,%ebp TRACE_IRQS_ON - sti - sysexit + ENABLE_INTERRUPTS_SYSEXIT CFI_ENDPROC @@ -356,7 +362,7 @@ syscall_call: call *sys_call_table(,%eax,4) movl %eax,EAX(%esp) # store the return value syscall_exit: - cli # make sure we don't miss an interrupt + DISABLE_INTERRUPTS # make sure we don't miss an interrupt # setting need_resched or sigpending # between sampling and the iret TRACE_IRQS_OFF @@ -381,11 +387,11 @@ restore_nocheck_notrace: RESTORE_REGS addl $4, %esp CFI_ADJUST_CFA_OFFSET -4 -1: iret +1: INTERRUPT_RETURN .section .fixup,"ax" iret_exc: TRACE_IRQS_ON - sti + ENABLE_INTERRUPTS pushl $0 # no error code pushl $do_iret_error jmp error_code @@ -409,7 +415,7 @@ ldt_ss: * dosemu and wine happy. */ subl $8, %esp # reserve space for switch16 pointer CFI_ADJUST_CFA_OFFSET 8 - cli + DISABLE_INTERRUPTS TRACE_IRQS_OFF movl %esp, %eax /* Set up the 16bit stack frame with switch32 pointer on top, @@ -419,7 +425,7 @@ ldt_ss: TRACE_IRQS_IRET RESTORE_REGS lss 20+4(%esp), %esp # switch to 16bit stack -1: iret +1: INTERRUPT_RETURN .section __ex_table,"a" .align 4 .long 1b,iret_exc @@ -434,7 +440,7 @@ work_pending: jz work_notifysig work_resched: call schedule - cli # make sure we don't miss an interrupt + DISABLE_INTERRUPTS # make sure we don't miss an interrupt # setting need_resched or sigpending # between sampling and the iret TRACE_IRQS_OFF @@ -490,7 +496,7 @@ syscall_exit_work: testb $(_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT|_TIF_SINGLESTEP), %cl jz work_pending TRACE_IRQS_ON - sti # could let do_syscall_trace() call + ENABLE_INTERRUPTS # could let do_syscall_trace() call # schedule() instead movl %esp, %eax movl $1, %edx @@ -668,7 +674,7 @@ ENTRY(device_not_available) pushl $-1 # mark this as an int CFI_ADJUST_CFA_OFFSET 4 SAVE_ALL - movl %cr0, %eax + GET_CR0_INTO_EAX testl $0x4, %eax # EM (math emulation bit) jne device_not_available_emulate preempt_stop @@ -811,7 +817,7 @@ nmi_16bit_stack: call do_nmi RESTORE_REGS lss 12+4(%esp), %esp # back to 16bit stack -1: iret +1: INTERRUPT_RETURN CFI_ENDPROC .section __ex_table,"a" .align 4 diff --git a/include/asm-i386/spinlock.h b/include/asm-i386/spinlock.h index 324329313af8..b0b3043f05e1 100644 --- a/include/asm-i386/spinlock.h +++ b/include/asm-i386/spinlock.h @@ -7,6 +7,9 @@ #include #include +#define CLI_STRING "cli" +#define STI_STRING "sti" + /* * Your basic SMP spinlocks, allowing only a single CPU anywhere * @@ -55,12 +58,12 @@ static inline void __raw_spin_lock_flags(raw_spinlock_t *lock, unsigned long fla "2:\t" "testl $0x200, %1\n\t" "jz 4f\n\t" - "sti\n" + STI_STRING "\n" "3:\t" "rep;nop\n\t" "cmpb $0, %0\n\t" "jle 3b\n\t" - "cli\n\t" + CLI_STRING "\n\t" "jmp 1b\n" "4:\t" "rep;nop\n\t" -- cgit v1.2.3 From 78be3706b21a232310590fe00258b224177ac05f Mon Sep 17 00:00:00 2001 From: Rusty Russell Date: Tue, 26 Sep 2006 10:52:39 +0200 Subject: [PATCH] i386: Allow a kernel not to be in ring 0 We allow for the fact that the guest kernel may not run in ring 0. This requires some abstraction in a few places when setting %cs or checking privilege level (user vs kernel). This is Chris' [RFC PATCH 15/33] move segment checks to subarch, except rather than using #define USER_MODE_MASK which depends on a config option, we use Zach's more flexible approach of assuming ring 3 == userspace. I also used "get_kernel_rpl()" over "get_kernel_cs()" because I think it reads better in the code... 1) Remove the hardcoded 3 and introduce #define SEGMENT_RPL_MASK 3 2) Add a get_kernel_rpl() macro, and don't assume it's zero. And: Clean up of patch for letting kernel run other than ring 0: a. Add some comments about the SEGMENT_IS_*_CODE() macros. b. Add a USER_RPL macro. (Code was comparing a value to a mask in some places and to the magic number 3 in other places.) c. Add macros for table indicator field and use them. d. Change the entry.S tests for LDT stack segment to use the macros Signed-off-by: Rusty Russell Signed-off-by: Zachary Amsden Signed-off-by: Jeremy Fitzhardinge Signed-off-by: Andrew Morton Signed-off-by: Andi Kleen --- arch/i386/kernel/entry.S | 9 +++++---- arch/i386/kernel/process.c | 2 +- arch/i386/mm/extable.c | 2 +- arch/i386/mm/fault.c | 11 ++++------- include/asm-i386/ptrace.h | 5 +++-- include/asm-i386/segment.h | 17 +++++++++++++++++ 6 files changed, 31 insertions(+), 15 deletions(-) (limited to 'include') diff --git a/arch/i386/kernel/entry.S b/arch/i386/kernel/entry.S index 3872fca5c74a..284f2e908ad0 100644 --- a/arch/i386/kernel/entry.S +++ b/arch/i386/kernel/entry.S @@ -240,8 +240,9 @@ ret_from_intr: check_userspace: movl EFLAGS(%esp), %eax # mix EFLAGS and CS movb CS(%esp), %al - testl $(VM_MASK | 3), %eax - jz resume_kernel + andl $(VM_MASK | SEGMENT_RPL_MASK), %eax + cmpl $USER_RPL, %eax + jb resume_kernel # not returning to v8086 or userspace ENTRY(resume_userspace) DISABLE_INTERRUPTS # make sure we don't miss an interrupt # setting need_resched or sigpending @@ -377,8 +378,8 @@ restore_all: # See comments in process.c:copy_thread() for details. movb OLDSS(%esp), %ah movb CS(%esp), %al - andl $(VM_MASK | (4 << 8) | 3), %eax - cmpl $((4 << 8) | 3), %eax + andl $(VM_MASK | (SEGMENT_TI_MASK << 8) | SEGMENT_RPL_MASK), %eax + cmpl $((SEGMENT_LDT << 8) | USER_RPL), %eax CFI_REMEMBER_STATE je ldt_ss # returning to user-space with LDT SS restore_nocheck: diff --git a/arch/i386/kernel/process.c b/arch/i386/kernel/process.c index 220aeca59c3a..8c190ca7ae44 100644 --- a/arch/i386/kernel/process.c +++ b/arch/i386/kernel/process.c @@ -338,7 +338,7 @@ int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags) regs.xes = __USER_DS; regs.orig_eax = -1; regs.eip = (unsigned long) kernel_thread_helper; - regs.xcs = __KERNEL_CS; + regs.xcs = __KERNEL_CS | get_kernel_rpl(); regs.eflags = X86_EFLAGS_IF | X86_EFLAGS_SF | X86_EFLAGS_PF | 0x2; /* Ok, create the new process.. */ diff --git a/arch/i386/mm/extable.c b/arch/i386/mm/extable.c index de03c5430abc..0ce4f22a2635 100644 --- a/arch/i386/mm/extable.c +++ b/arch/i386/mm/extable.c @@ -11,7 +11,7 @@ int fixup_exception(struct pt_regs *regs) const struct exception_table_entry *fixup; #ifdef CONFIG_PNPBIOS - if (unlikely((regs->xcs & ~15) == (GDT_ENTRY_PNPBIOS_BASE << 3))) + if (unlikely(SEGMENT_IS_PNP_CODE(regs->xcs))) { extern u32 pnp_bios_fault_eip, pnp_bios_fault_esp; extern u32 pnp_bios_is_utter_crap; diff --git a/arch/i386/mm/fault.c b/arch/i386/mm/fault.c index 0ce86168a0b1..5e17a3f43b41 100644 --- a/arch/i386/mm/fault.c +++ b/arch/i386/mm/fault.c @@ -27,6 +27,7 @@ #include #include #include +#include extern void die(const char *,struct pt_regs *,long); @@ -113,10 +114,10 @@ static inline unsigned long get_segment_eip(struct pt_regs *regs, } /* The standard kernel/user address space limit. */ - *eip_limit = (seg & 3) ? USER_DS.seg : KERNEL_DS.seg; + *eip_limit = user_mode(regs) ? USER_DS.seg : KERNEL_DS.seg; /* By far the most common cases. */ - if (likely(seg == __USER_CS || seg == __KERNEL_CS)) + if (likely(SEGMENT_IS_FLAT_CODE(seg))) return eip; /* Check the segment exists, is within the current LDT/GDT size, @@ -430,11 +431,7 @@ good_area: write = 0; switch (error_code & 3) { default: /* 3: write, present */ -#ifdef TEST_VERIFY_AREA - if (regs->cs == KERNEL_CS) - printk("WP fault at %08lx\n", regs->eip); -#endif - /* fall through */ + /* fall through */ case 2: /* write, not present */ if (!(vma->vm_flags & VM_WRITE)) goto bad_area; diff --git a/include/asm-i386/ptrace.h b/include/asm-i386/ptrace.h index 30a442ec2059..21bb91679c82 100644 --- a/include/asm-i386/ptrace.h +++ b/include/asm-i386/ptrace.h @@ -60,6 +60,7 @@ struct pt_regs { #ifdef __KERNEL__ #include +#include struct task_struct; extern void send_sigtrap(struct task_struct *tsk, struct pt_regs *regs, int error_code); @@ -73,11 +74,11 @@ extern void send_sigtrap(struct task_struct *tsk, struct pt_regs *regs, int erro */ static inline int user_mode(struct pt_regs *regs) { - return (regs->xcs & 3) != 0; + return (regs->xcs & SEGMENT_RPL_MASK) == USER_RPL; } static inline int user_mode_vm(struct pt_regs *regs) { - return ((regs->xcs & 3) | (regs->eflags & VM_MASK)) != 0; + return ((regs->xcs & SEGMENT_RPL_MASK) | (regs->eflags & VM_MASK)) >= USER_RPL; } #define instruction_pointer(regs) ((regs)->eip) extern unsigned long profile_pc(struct pt_regs *regs); diff --git a/include/asm-i386/segment.h b/include/asm-i386/segment.h index faf995307b9e..b7ab59685ba7 100644 --- a/include/asm-i386/segment.h +++ b/include/asm-i386/segment.h @@ -83,6 +83,11 @@ #define GDT_SIZE (GDT_ENTRIES * 8) +/* Matches __KERNEL_CS and __USER_CS (they must be 2 entries apart) */ +#define SEGMENT_IS_FLAT_CODE(x) (((x) & 0xec) == GDT_ENTRY_KERNEL_CS * 8) +/* Matches PNP_CS32 and PNP_CS16 (they must be consecutive) */ +#define SEGMENT_IS_PNP_CODE(x) (((x) & 0xf4) == GDT_ENTRY_PNPBIOS_BASE * 8) + /* Simple and small GDT entries for booting only */ #define GDT_ENTRY_BOOT_CS 2 @@ -112,4 +117,16 @@ */ #define IDT_ENTRIES 256 +/* Bottom two bits of selector give the ring privilege level */ +#define SEGMENT_RPL_MASK 0x3 +/* Bit 2 is table indicator (LDT/GDT) */ +#define SEGMENT_TI_MASK 0x4 + +/* User mode is privilege level 3 */ +#define USER_RPL 0x3 +/* LDT segment has TI set, GDT has it cleared */ +#define SEGMENT_LDT 0x4 +#define SEGMENT_GDT 0x0 + +#define get_kernel_rpl() 0 #endif -- cgit v1.2.3 From 3022d734a54cbd2b65eea9a024564821101b4a9a Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Tue, 26 Sep 2006 10:52:39 +0200 Subject: [PATCH] Fix zeroing on exception in copy_*_user - Don't zero for __copy_from_user_inatomic following i386. This will prevent spurious zeros for parallel file system writers when one does a exception - The string instruction version didn't zero the output on exception. Oops. Also I cleaned up the code a bit while I was at it and added a minor optimization to the string instruction path. Signed-off-by: Andi Kleen --- arch/x86_64/kernel/x8664_ksyms.c | 1 + arch/x86_64/lib/copy_user.S | 124 +++++++++++++++++++++++++-------------- include/asm-x86_64/uaccess.h | 6 +- 3 files changed, 83 insertions(+), 48 deletions(-) (limited to 'include') diff --git a/arch/x86_64/kernel/x8664_ksyms.c b/arch/x86_64/kernel/x8664_ksyms.c index 370952c4ff22..c3454af5e3a2 100644 --- a/arch/x86_64/kernel/x8664_ksyms.c +++ b/arch/x86_64/kernel/x8664_ksyms.c @@ -29,6 +29,7 @@ EXPORT_SYMBOL(__put_user_8); EXPORT_SYMBOL(copy_user_generic); EXPORT_SYMBOL(copy_from_user); EXPORT_SYMBOL(copy_to_user); +EXPORT_SYMBOL(__copy_from_user_inatomic); EXPORT_SYMBOL(copy_page); EXPORT_SYMBOL(clear_page); diff --git a/arch/x86_64/lib/copy_user.S b/arch/x86_64/lib/copy_user.S index 962f3a693c5e..70bebd310408 100644 --- a/arch/x86_64/lib/copy_user.S +++ b/arch/x86_64/lib/copy_user.S @@ -9,10 +9,29 @@ #define FIX_ALIGNMENT 1 - #include - #include - #include - #include +#include +#include +#include +#include + + .macro ALTERNATIVE_JUMP feature,orig,alt +0: + .byte 0xe9 /* 32bit jump */ + .long \orig-1f /* by default jump to orig */ +1: + .section .altinstr_replacement,"ax" +2: .byte 0xe9 /* near jump with 32bit immediate */ + .long \alt-1b /* offset */ /* or alternatively to alt */ + .previous + .section .altinstructions,"a" + .align 8 + .quad 0b + .quad 2b + .byte \feature /* when feature is set */ + .byte 5 + .byte 5 + .previous + .endm /* Standard copy_to_user with segment limit checking */ ENTRY(copy_to_user) @@ -23,25 +42,21 @@ ENTRY(copy_to_user) jc bad_to_user cmpq threadinfo_addr_limit(%rax),%rcx jae bad_to_user -2: - .byte 0xe9 /* 32bit jump */ - .long .Lcug-1f -1: + xorl %eax,%eax /* clear zero flag */ + ALTERNATIVE_JUMP X86_FEATURE_REP_GOOD,copy_user_generic_unrolled,copy_user_generic_string CFI_ENDPROC -ENDPROC(copy_to_user) - .section .altinstr_replacement,"ax" -3: .byte 0xe9 /* replacement jmp with 32 bit immediate */ - .long copy_user_generic_c-1b /* offset */ - .previous - .section .altinstructions,"a" - .align 8 - .quad 2b - .quad 3b - .byte X86_FEATURE_REP_GOOD - .byte 5 - .byte 5 - .previous +ENTRY(copy_user_generic) + CFI_STARTPROC + movl $1,%ecx /* set zero flag */ + ALTERNATIVE_JUMP X86_FEATURE_REP_GOOD,copy_user_generic_unrolled,copy_user_generic_string + CFI_ENDPROC + +ENTRY(__copy_from_user_inatomic) + CFI_STARTPROC + xorl %ecx,%ecx /* clear zero flag */ + ALTERNATIVE_JUMP X86_FEATURE_REP_GOOD,copy_user_generic_unrolled,copy_user_generic_string + CFI_ENDPROC /* Standard copy_from_user with segment limit checking */ ENTRY(copy_from_user) @@ -52,7 +67,8 @@ ENTRY(copy_from_user) jc bad_from_user cmpq threadinfo_addr_limit(%rax),%rcx jae bad_from_user - /* FALL THROUGH to copy_user_generic */ + movl $1,%ecx /* set zero flag */ + ALTERNATIVE_JUMP X86_FEATURE_REP_GOOD,copy_user_generic_unrolled,copy_user_generic_string CFI_ENDPROC ENDPROC(copy_from_user) @@ -73,37 +89,26 @@ END(bad_from_user) /* - * copy_user_generic - memory copy with exception handling. + * copy_user_generic_unrolled - memory copy with exception handling. + * This version is for CPUs like P4 that don't have efficient micro code for rep movsq * * Input: * rdi destination * rsi source * rdx count + * ecx zero flag -- if true zero destination on error * * Output: * eax uncopied bytes or 0 if successful. */ -ENTRY(copy_user_generic) +ENTRY(copy_user_generic_unrolled) CFI_STARTPROC - .byte 0x66,0x66,0x90 /* 5 byte nop for replacement jump */ - .byte 0x66,0x90 -1: - .section .altinstr_replacement,"ax" -2: .byte 0xe9 /* near jump with 32bit immediate */ - .long copy_user_generic_c-1b /* offset */ - .previous - .section .altinstructions,"a" - .align 8 - .quad copy_user_generic - .quad 2b - .byte X86_FEATURE_REP_GOOD - .byte 5 - .byte 5 - .previous -.Lcug: pushq %rbx CFI_ADJUST_CFA_OFFSET 8 CFI_REL_OFFSET rbx, 0 + pushq %rcx + CFI_ADJUST_CFA_OFFSET 8 + CFI_REL_OFFSET rcx, 0 xorl %eax,%eax /*zero for the exception handler */ #ifdef FIX_ALIGNMENT @@ -179,6 +184,9 @@ ENTRY(copy_user_generic) CFI_REMEMBER_STATE .Lende: + popq %rcx + CFI_ADJUST_CFA_OFFSET -8 + CFI_RESTORE rcx popq %rbx CFI_ADJUST_CFA_OFFSET -8 CFI_RESTORE rbx @@ -265,6 +273,8 @@ ENTRY(copy_user_generic) addl %ecx,%edx /* edx: bytes to zero, rdi: dest, eax:zero */ .Lzero_rest: + cmpl $0,(%rsp) + jz .Le_zero movq %rdx,%rcx .Le_byte: xorl %eax,%eax @@ -286,6 +296,7 @@ ENDPROC(copy_user_generic) /* rdi destination * rsi source * rdx count + * ecx zero flag * * Output: * eax uncopied bytes or 0 if successfull. @@ -296,25 +307,48 @@ ENDPROC(copy_user_generic) * And more would be dangerous because both Intel and AMD have * errata with rep movsq > 4GB. If someone feels the need to fix * this please consider this. - */ -copy_user_generic_c: + */ +ENTRY(copy_user_generic_string) CFI_STARTPROC + movl %ecx,%r8d /* save zero flag */ movl %edx,%ecx shrl $3,%ecx andl $7,%edx + jz 10f 1: rep movsq movl %edx,%ecx 2: rep movsb -4: movl %ecx,%eax +9: movl %ecx,%eax ret -3: lea (%rdx,%rcx,8),%rax + + /* multiple of 8 byte */ +10: rep + movsq + xor %eax,%eax ret + + /* exception handling */ +3: lea (%rdx,%rcx,8),%rax /* exception on quad loop */ + jmp 6f +5: movl %ecx,%eax /* exception on byte loop */ + /* eax: left over bytes */ +6: testl %r8d,%r8d /* zero flag set? */ + jz 7f + movl %eax,%ecx /* initialize x86 loop counter */ + push %rax + xorl %eax,%eax +8: rep + stosb /* zero the rest */ +11: pop %rax +7: ret CFI_ENDPROC END(copy_user_generic_c) .section __ex_table,"a" .quad 1b,3b - .quad 2b,4b + .quad 2b,5b + .quad 8b,11b + .quad 10b,3b .previous diff --git a/include/asm-x86_64/uaccess.h b/include/asm-x86_64/uaccess.h index 1e1fa003daa3..bc6812009bd7 100644 --- a/include/asm-x86_64/uaccess.h +++ b/include/asm-x86_64/uaccess.h @@ -238,6 +238,7 @@ do { \ /* Handles exceptions in both to and from, but doesn't do access_ok */ extern unsigned long copy_user_generic(void *to, const void *from, unsigned len); +extern unsigned long copy_user_generic_dontzero(void *to, const void *from, unsigned len); extern unsigned long copy_to_user(void __user *to, const void *from, unsigned len); extern unsigned long copy_from_user(void *to, const void __user *from, unsigned len); @@ -303,7 +304,6 @@ static __always_inline int __copy_to_user(void __user *dst, const void *src, uns } } - static __always_inline int __copy_in_user(void __user *dst, const void __user *src, unsigned size) { int ret = 0; @@ -352,7 +352,7 @@ long strlen_user(const char __user *str); unsigned long clear_user(void __user *mem, unsigned long len); unsigned long __clear_user(void __user *mem, unsigned long len); -#define __copy_to_user_inatomic __copy_to_user -#define __copy_from_user_inatomic __copy_from_user +extern long __copy_from_user_inatomic(void *dst, const void __user *src, unsigned size); +#define __copy_to_user_inatomic copy_user_generic #endif /* __X86_64_UACCESS_H */ -- cgit v1.2.3 From 95912008ba1fb9d0677c1ce5930aeb0e85ba5710 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Tue, 26 Sep 2006 10:52:39 +0200 Subject: [PATCH] Add __must_check to copy_*_user Following i386. And also fix the two occurrences that caused warnings in arch/x86_64/* Signed-off-by: Andi Kleen --- arch/x86_64/ia32/ptrace32.c | 6 ++++-- include/asm-x86_64/i387.h | 4 ++-- include/asm-x86_64/uaccess.h | 46 ++++++++++++++++++++++++++------------------ 3 files changed, 33 insertions(+), 23 deletions(-) (limited to 'include') diff --git a/arch/x86_64/ia32/ptrace32.c b/arch/x86_64/ia32/ptrace32.c index 72bf92a9d375..d18198ed636b 100644 --- a/arch/x86_64/ia32/ptrace32.c +++ b/arch/x86_64/ia32/ptrace32.c @@ -375,8 +375,10 @@ asmlinkage long sys32_ptrace(long request, u32 pid, u32 addr, u32 data) ret = -EIO; if (!access_ok(VERIFY_READ, u, sizeof(*u))) break; - /* no checking to be bug-to-bug compatible with i386 */ - __copy_from_user(&child->thread.i387.fxsave, u, sizeof(*u)); + /* no checking to be bug-to-bug compatible with i386. */ + /* but silence warning */ + if (__copy_from_user(&child->thread.i387.fxsave, u, sizeof(*u))) + ; set_stopped_child_used_math(child); child->thread.i387.fxsave.mxcsr &= mxcsr_feature_mask; ret = 0; diff --git a/include/asm-x86_64/i387.h b/include/asm-x86_64/i387.h index 60c0f4853fdb..0217b74cc9fc 100644 --- a/include/asm-x86_64/i387.h +++ b/include/asm-x86_64/i387.h @@ -137,8 +137,8 @@ static inline int save_i387_checking(struct i387_fxsave_struct __user *fx) #else : [fx] "cdaSDb" (fx), "0" (0)); #endif - if (unlikely(err)) - __clear_user(fx, sizeof(struct i387_fxsave_struct)); + if (unlikely(err) && __clear_user(fx, sizeof(struct i387_fxsave_struct))) + err = -EFAULT; /* No need to clear here because the caller clears USED_MATH */ return err; } diff --git a/include/asm-x86_64/uaccess.h b/include/asm-x86_64/uaccess.h index bc6812009bd7..802a4a068ef6 100644 --- a/include/asm-x86_64/uaccess.h +++ b/include/asm-x86_64/uaccess.h @@ -237,14 +237,18 @@ do { \ */ /* Handles exceptions in both to and from, but doesn't do access_ok */ -extern unsigned long copy_user_generic(void *to, const void *from, unsigned len); -extern unsigned long copy_user_generic_dontzero(void *to, const void *from, unsigned len); - -extern unsigned long copy_to_user(void __user *to, const void *from, unsigned len); -extern unsigned long copy_from_user(void *to, const void __user *from, unsigned len); -extern unsigned long copy_in_user(void __user *to, const void __user *from, unsigned len); - -static __always_inline int __copy_from_user(void *dst, const void __user *src, unsigned size) +__must_check unsigned long +copy_user_generic(void *to, const void *from, unsigned len); + +__must_check unsigned long +copy_to_user(void __user *to, const void *from, unsigned len); +__must_check unsigned long +copy_from_user(void *to, const void __user *from, unsigned len); +__must_check unsigned long +copy_in_user(void __user *to, const void __user *from, unsigned len); + +static __always_inline __must_check +int __copy_from_user(void *dst, const void __user *src, unsigned size) { int ret = 0; if (!__builtin_constant_p(size)) @@ -273,7 +277,8 @@ static __always_inline int __copy_from_user(void *dst, const void __user *src, u } } -static __always_inline int __copy_to_user(void __user *dst, const void *src, unsigned size) +static __always_inline __must_check +int __copy_to_user(void __user *dst, const void *src, unsigned size) { int ret = 0; if (!__builtin_constant_p(size)) @@ -304,7 +309,8 @@ static __always_inline int __copy_to_user(void __user *dst, const void *src, uns } } -static __always_inline int __copy_in_user(void __user *dst, const void __user *src, unsigned size) +static __always_inline __must_check +int __copy_in_user(void __user *dst, const void __user *src, unsigned size) { int ret = 0; if (!__builtin_constant_p(size)) @@ -344,15 +350,17 @@ static __always_inline int __copy_in_user(void __user *dst, const void __user *s } } -long strncpy_from_user(char *dst, const char __user *src, long count); -long __strncpy_from_user(char *dst, const char __user *src, long count); -long strnlen_user(const char __user *str, long n); -long __strnlen_user(const char __user *str, long n); -long strlen_user(const char __user *str); -unsigned long clear_user(void __user *mem, unsigned long len); -unsigned long __clear_user(void __user *mem, unsigned long len); - -extern long __copy_from_user_inatomic(void *dst, const void __user *src, unsigned size); +__must_check long +strncpy_from_user(char *dst, const char __user *src, long count); +__must_check long +__strncpy_from_user(char *dst, const char __user *src, long count); +__must_check long strnlen_user(const char __user *str, long n); +__must_check long __strnlen_user(const char __user *str, long n); +__must_check long strlen_user(const char __user *str); +__must_check unsigned long clear_user(void __user *mem, unsigned long len); +__must_check unsigned long __clear_user(void __user *mem, unsigned long len); + +__must_check long __copy_from_user_inatomic(void *dst, const void __user *src, unsigned size); #define __copy_to_user_inatomic copy_user_generic #endif /* __X86_64_UACCESS_H */ -- cgit v1.2.3 From 383d079bfdfcfccd6a720405a510fe325b3e6576 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Tue, 26 Sep 2006 10:52:40 +0200 Subject: [PATCH] Fix some stylistic issues in uaccess.h - Replace some broken white space. - Replace __ keywords with standard names No functional changes. Signed-off-by: Andi Kleen --- include/asm-x86_64/uaccess.h | 20 ++++++++++---------- 1 file changed, 10 insertions(+), 10 deletions(-) (limited to 'include') diff --git a/include/asm-x86_64/uaccess.h b/include/asm-x86_64/uaccess.h index 802a4a068ef6..e856570c0689 100644 --- a/include/asm-x86_64/uaccess.h +++ b/include/asm-x86_64/uaccess.h @@ -84,7 +84,7 @@ struct exception_table_entry */ #define __get_user_x(size,ret,x,ptr) \ - __asm__ __volatile__("call __get_user_" #size \ + asm volatile("call __get_user_" #size \ :"=a" (ret),"=d" (x) \ :"c" (ptr) \ :"r8") @@ -101,7 +101,7 @@ struct exception_table_entry case 8: __get_user_x(8,__ret_gu,__val_gu,ptr); break; \ default: __get_user_bad(); break; \ } \ - (x) = (__typeof__(*(ptr)))__val_gu; \ + (x) = (typeof(*(ptr)))__val_gu; \ __ret_gu; \ }) @@ -112,7 +112,7 @@ extern void __put_user_8(void); extern void __put_user_bad(void); #define __put_user_x(size,ret,x,ptr) \ - __asm__ __volatile__("call __put_user_" #size \ + asm volatile("call __put_user_" #size \ :"=a" (ret) \ :"c" (ptr),"d" (x) \ :"r8") @@ -139,7 +139,7 @@ extern void __put_user_bad(void); #define __put_user_check(x,ptr,size) \ ({ \ int __pu_err; \ - __typeof__(*(ptr)) __user *__pu_addr = (ptr); \ + typeof(*(ptr)) __user *__pu_addr = (ptr); \ switch (size) { \ case 1: __put_user_x(1,__pu_err,x,__pu_addr); break; \ case 2: __put_user_x(2,__pu_err,x,__pu_addr); break; \ @@ -173,7 +173,7 @@ struct __large_struct { unsigned long buf[100]; }; * aliasing issues. */ #define __put_user_asm(x, addr, err, itype, rtype, ltype, errno) \ - __asm__ __volatile__( \ + asm volatile( \ "1: mov"itype" %"rtype"1,%2\n" \ "2:\n" \ ".section .fixup,\"ax\"\n" \ @@ -193,7 +193,7 @@ struct __large_struct { unsigned long buf[100]; }; int __gu_err; \ unsigned long __gu_val; \ __get_user_size(__gu_val,(ptr),(size),__gu_err); \ - (x) = (__typeof__(*(ptr)))__gu_val; \ + (x) = (typeof(*(ptr)))__gu_val; \ __gu_err; \ }) @@ -217,7 +217,7 @@ do { \ } while (0) #define __get_user_asm(x, addr, err, itype, rtype, ltype, errno) \ - __asm__ __volatile__( \ + asm volatile( \ "1: mov"itype" %2,%"rtype"1\n" \ "2:\n" \ ".section .fixup,\"ax\"\n" \ @@ -250,7 +250,7 @@ copy_in_user(void __user *to, const void __user *from, unsigned len); static __always_inline __must_check int __copy_from_user(void *dst, const void __user *src, unsigned size) { - int ret = 0; + int ret = 0; if (!__builtin_constant_p(size)) return copy_user_generic(dst,(__force void *)src,size); switch (size) { @@ -280,7 +280,7 @@ int __copy_from_user(void *dst, const void __user *src, unsigned size) static __always_inline __must_check int __copy_to_user(void __user *dst, const void *src, unsigned size) { - int ret = 0; + int ret = 0; if (!__builtin_constant_p(size)) return copy_user_generic((__force void *)dst,src,size); switch (size) { @@ -312,7 +312,7 @@ int __copy_to_user(void __user *dst, const void *src, unsigned size) static __always_inline __must_check int __copy_in_user(void __user *dst, const void __user *src, unsigned size) { - int ret = 0; + int ret = 0; if (!__builtin_constant_p(size)) return copy_user_generic((__force void *)dst,(__force void *)src,size); switch (size) { -- cgit v1.2.3 From c1a9d41f4f103bfef2ed0bea1e95b3190e39e448 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Tue, 26 Sep 2006 10:52:40 +0200 Subject: [PATCH] Reindent macros in pda.h Reindent the macros in x86-64 pda.h, making them much more readable. Follows Jeremy's i386 version of this. No functional changes Signed-off-by: Andi Kleen --- include/asm-x86_64/pda.h | 85 ++++++++++++++++++++++++++++++------------------ 1 file changed, 53 insertions(+), 32 deletions(-) (limited to 'include') diff --git a/include/asm-x86_64/pda.h b/include/asm-x86_64/pda.h index 5dadb201f769..9e3aaf74475d 100644 --- a/include/asm-x86_64/pda.h +++ b/include/asm-x86_64/pda.h @@ -41,46 +41,67 @@ extern struct x8664_pda boot_cpu_pda[]; */ extern void __bad_pda_field(void); -/* proxy_pda doesn't actually exist, but tell gcc it is accessed - for all PDA accesses so it gets read/write dependencies right. */ +/* + * proxy_pda doesn't actually exist, but tell gcc it is accessed for + * all PDA accesses so it gets read/write dependencies right. + */ extern struct x8664_pda _proxy_pda; #define pda_offset(field) offsetof(struct x8664_pda, field) -#define pda_to_op(op,field,val) do { \ - typedef typeof(_proxy_pda.field) T__; \ - if (0) { T__ tmp__; tmp__ = (val); } \ - switch (sizeof(_proxy_pda.field)) { \ -case 2: \ -asm(op "w %1,%%gs:%c2" : "+m" (_proxy_pda.field) : \ - "ri" ((T__)val),"i"(pda_offset(field))); break; \ -case 4: \ -asm(op "l %1,%%gs:%c2" : "+m" (_proxy_pda.field) : \ - "ri" ((T__)val),"i"(pda_offset(field))); break; \ -case 8: \ -asm(op "q %1,%%gs:%c2": "+m" (_proxy_pda.field) : \ - "ri" ((T__)val),"i"(pda_offset(field))); break; \ -default: __bad_pda_field(); \ - } \ +#define pda_to_op(op,field,val) do { \ + typedef typeof(_proxy_pda.field) T__; \ + if (0) { T__ tmp__; tmp__ = (val); } /* type checking */ \ + switch (sizeof(_proxy_pda.field)) { \ + case 2: \ + asm(op "w %1,%%gs:%c2" : \ + "+m" (_proxy_pda.field) : \ + "ri" ((T__)val), \ + "i"(pda_offset(field))); \ + break; \ + case 4: \ + asm(op "l %1,%%gs:%c2" : \ + "+m" (_proxy_pda.field) : \ + "ri" ((T__)val), \ + "i" (pda_offset(field))); \ + break; \ + case 8: \ + asm(op "q %1,%%gs:%c2": \ + "+m" (_proxy_pda.field) : \ + "ri" ((T__)val), \ + "i"(pda_offset(field))); \ + break; \ + default: \ + __bad_pda_field(); \ + } \ } while (0) -#define pda_from_op(op,field) ({ \ - typeof(_proxy_pda.field) ret__; \ - switch (sizeof(_proxy_pda.field)) { \ -case 2: \ -asm(op "w %%gs:%c1,%0":"=r" (ret__):\ - "i" (pda_offset(field)), "m" (_proxy_pda.field)); break;\ -case 4: \ -asm(op "l %%gs:%c1,%0":"=r" (ret__):\ - "i" (pda_offset(field)), "m" (_proxy_pda.field)); break;\ -case 8: \ -asm(op "q %%gs:%c1,%0":"=r" (ret__):\ - "i" (pda_offset(field)), "m" (_proxy_pda.field)); break;\ -default: __bad_pda_field(); \ - } \ +#define pda_from_op(op,field) ({ \ + typeof(_proxy_pda.field) ret__; \ + switch (sizeof(_proxy_pda.field)) { \ + case 2: \ + asm(op "w %%gs:%c1,%0" : \ + "=r" (ret__) : \ + "i" (pda_offset(field)), \ + "m" (_proxy_pda.field)); \ + break; \ + case 4: \ + asm(op "l %%gs:%c1,%0": \ + "=r" (ret__): \ + "i" (pda_offset(field)), \ + "m" (_proxy_pda.field)); \ + break; \ + case 8: \ + asm(op "q %%gs:%c1,%0": \ + "=r" (ret__) : \ + "i" (pda_offset(field)), \ + "m" (_proxy_pda.field)); \ + break; \ + default: \ + __bad_pda_field(); \ + } \ ret__; }) - #define read_pda(field) pda_from_op("mov",field) #define write_pda(field,val) pda_to_op("mov",field,val) #define add_pda(field,val) pda_to_op("add",field,val) -- cgit v1.2.3 From fd167e42b237e0688005b3dec380eb5a6e5f3585 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Tue, 26 Sep 2006 10:52:40 +0200 Subject: [PATCH] Define __bad_pda_field as noreturn This quietens so warnings about uninitialized use of the return value of the pda read operations. Signed-off-by: Andi Kleen --- include/asm-x86_64/pda.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/asm-x86_64/pda.h b/include/asm-x86_64/pda.h index 9e3aaf74475d..531f48a6c3af 100644 --- a/include/asm-x86_64/pda.h +++ b/include/asm-x86_64/pda.h @@ -39,7 +39,7 @@ extern struct x8664_pda boot_cpu_pda[]; * There is no fast way to get the base address of the PDA, all the accesses * have to mention %fs/%gs. So it needs to be done this Torvaldian way. */ -extern void __bad_pda_field(void); +extern void __bad_pda_field(void) __attribute__((noreturn)); /* * proxy_pda doesn't actually exist, but tell gcc it is accessed for -- cgit v1.2.3 From 73bb5117a448bdf0b56232ca28451fe4c534cb3a Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Tue, 26 Sep 2006 10:52:40 +0200 Subject: [PATCH] Remove unused asm-x86_64/mmx.h Signed-off-by: Andi Kleen --- include/asm-x86_64/mmx.h | 14 -------------- 1 file changed, 14 deletions(-) delete mode 100644 include/asm-x86_64/mmx.h (limited to 'include') diff --git a/include/asm-x86_64/mmx.h b/include/asm-x86_64/mmx.h deleted file mode 100644 index 46b71da99869..000000000000 --- a/include/asm-x86_64/mmx.h +++ /dev/null @@ -1,14 +0,0 @@ -#ifndef _ASM_MMX_H -#define _ASM_MMX_H - -/* - * MMX 3Dnow! helper operations - */ - -#include - -extern void *_mmx_memcpy(void *to, const void *from, size_t size); -extern void mmx_clear_page(void *page); -extern void mmx_copy_page(void *to, void *from); - -#endif -- cgit v1.2.3 From a15da49debaf7f09460a886b0ecd08588410715e Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Tue, 26 Sep 2006 10:52:40 +0200 Subject: [PATCH] Fix idle notifiers Previously exit_idle would be called more often than enter_idle Now instead of using complicated tests just keep track of it using the per CPU variable as a flip flop. I moved the idle state into the PDA to make the access more efficient. Original bug report and an initial patch from Stephane Eranian, but redone by AK. Cc: Stephane Eranian Signed-off-by: Andi Kleen --- arch/x86_64/kernel/process.c | 15 +++++++++------ include/asm-x86_64/pda.h | 3 ++- 2 files changed, 11 insertions(+), 7 deletions(-) (limited to 'include') diff --git a/arch/x86_64/kernel/process.c b/arch/x86_64/kernel/process.c index 885c318f76ab..458006ae19f3 100644 --- a/arch/x86_64/kernel/process.c +++ b/arch/x86_64/kernel/process.c @@ -80,25 +80,25 @@ void idle_notifier_unregister(struct notifier_block *n) } EXPORT_SYMBOL(idle_notifier_unregister); -enum idle_state { CPU_IDLE, CPU_NOT_IDLE }; -static DEFINE_PER_CPU(enum idle_state, idle_state) = CPU_NOT_IDLE; - void enter_idle(void) { - __get_cpu_var(idle_state) = CPU_IDLE; + write_pda(isidle, 1); atomic_notifier_call_chain(&idle_notifier, IDLE_START, NULL); } static void __exit_idle(void) { - __get_cpu_var(idle_state) = CPU_NOT_IDLE; + if (read_pda(isidle) == 0) + return; + write_pda(isidle, 0); atomic_notifier_call_chain(&idle_notifier, IDLE_END, NULL); } /* Called from interrupts to signify idle end */ void exit_idle(void) { - if (current->pid | read_pda(irqcount)) + /* idle loop has pid 0 */ + if (current->pid) return; __exit_idle(); } @@ -220,6 +220,9 @@ void cpu_idle (void) play_dead(); enter_idle(); idle(); + /* In many cases the interrupt that ended idle + has already called exit_idle. But some idle + loops can be woken up without interrupt. */ __exit_idle(); } diff --git a/include/asm-x86_64/pda.h b/include/asm-x86_64/pda.h index 531f48a6c3af..14996d962bac 100644 --- a/include/asm-x86_64/pda.h +++ b/include/asm-x86_64/pda.h @@ -25,7 +25,8 @@ struct x8664_pda { int nodenumber; /* number of current node */ unsigned int __softirq_pending; unsigned int __nmi_count; /* number of NMI on this CPUs */ - int mmu_state; + short mmu_state; + short isidle; struct mm_struct *active_mm; unsigned apic_timer_irqs; } ____cacheline_aligned_in_smp; -- cgit v1.2.3 From 2817716ace8c397685bd702223cc5a8a42c7e997 Mon Sep 17 00:00:00 2001 From: Jeremy Fitzhardinge Date: Tue, 26 Sep 2006 10:52:40 +0200 Subject: [PATCH] i386: Fix pack_descriptor() Fix pack_descriptor: 1. flags are bits 20-23 in the high word 2. limit's 4 msb are bits 16-19 in the high word These haven't mattered so far, because all users have had small limits and a flags setting of 0. Signed-off-by: Jeremy Fitzhardinge Signed-off-by: Andi Kleen =================================================================== --- include/asm-i386/desc.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/asm-i386/desc.h b/include/asm-i386/desc.h index 5db9e96e8dc1..5874ef119ffd 100644 --- a/include/asm-i386/desc.h +++ b/include/asm-i386/desc.h @@ -46,7 +46,7 @@ static inline void pack_descriptor(__u32 *a, __u32 *b, { *a = ((base & 0xffff) << 16) | (limit & 0xffff); *b = (base & 0xff000000) | ((base & 0xff0000) >> 16) | - ((type & 0xff) << 8) | ((flags & 0xf) << 12); + (limit & 0x000f0000) | ((type & 0xff) << 8) | ((flags & 0xf) << 20); } static inline void pack_gate(__u32 *a, __u32 *b, -- cgit v1.2.3 From adf1423698f00d00b267f7dca8231340ce7d65ef Mon Sep 17 00:00:00 2001 From: Jan Beulich Date: Tue, 26 Sep 2006 10:52:41 +0200 Subject: [PATCH] i386/x86-64: Work around gcc bug with noreturn functions in unwinder Current gcc generates calls not jumps to noreturn functions. When that happens the return address can point to the next function, which confuses the unwinder. This patch works around it by marking asynchronous exception frames in contrast normal call frames in the unwind information. Then teach the unwinder to decode this. For normal call frames the unwinder now subtracts one from the address which avoids this problem. The standard libgcc unwinder uses the same trick. It doesn't include adjustment of the printed address (i.e. for the original example, it'd still be kernel_math_error+0 that gets displayed, but the unwinder wouldn't get confused anymore. This only works with binutils 2.6.17+ and some versions of H.J.Lu's 2.6.16 unfortunately because earlier binutils don't support .cfi_signal_frame [AK: added automatic detection of the new binutils and wrote description] Signed-off-by: Jan Beulich Signed-off-by: Andi Kleen --- arch/i386/Makefile | 4 ++++ arch/i386/kernel/entry.S | 4 ++++ arch/x86_64/Makefile | 4 ++++ arch/x86_64/ia32/ia32entry.S | 4 ++++ arch/x86_64/kernel/entry.S | 4 ++++ include/asm-i386/dwarf2.h | 7 +++++++ include/asm-i386/unwind.h | 5 +++++ include/asm-x86_64/dwarf2.h | 6 ++++++ include/asm-x86_64/unwind.h | 5 +++++ kernel/unwind.c | 35 ++++++++++++++++++++++++++++------- scripts/Kbuild.include | 4 ++-- 11 files changed, 73 insertions(+), 9 deletions(-) (limited to 'include') diff --git a/arch/i386/Makefile b/arch/i386/Makefile index 508cdbeb3a09..7cc0b189b82b 100644 --- a/arch/i386/Makefile +++ b/arch/i386/Makefile @@ -50,6 +50,10 @@ CFLAGS += $(shell if [ $(call cc-version) -lt 0400 ] ; then echo $(call cc-op cflags-y += $(call as-instr,.cfi_startproc\n.cfi_endproc,-DCONFIG_AS_CFI=1,) AFLAGS += $(call as-instr,.cfi_startproc\n.cfi_endproc,-DCONFIG_AS_CFI=1,) +# is .cfi_signal_frame supported too? +cflags-y += $(call as-instr,.cfi_startproc\n.cfi_endproc,-DCONFIG_AS_CFI=1,) +AFLAGS += $(call as-instr,.cfi_startproc\n.cfi_endproc,-DCONFIG_AS_CFI=1,) + CFLAGS += $(cflags-y) # Default subarch .c files diff --git a/arch/i386/kernel/entry.S b/arch/i386/kernel/entry.S index 284f2e908ad0..5a63d6fdb70e 100644 --- a/arch/i386/kernel/entry.S +++ b/arch/i386/kernel/entry.S @@ -183,18 +183,21 @@ VM_MASK = 0x00020000 #define RING0_INT_FRAME \ CFI_STARTPROC simple;\ + CFI_SIGNAL_FRAME;\ CFI_DEF_CFA esp, 3*4;\ /*CFI_OFFSET cs, -2*4;*/\ CFI_OFFSET eip, -3*4 #define RING0_EC_FRAME \ CFI_STARTPROC simple;\ + CFI_SIGNAL_FRAME;\ CFI_DEF_CFA esp, 4*4;\ /*CFI_OFFSET cs, -2*4;*/\ CFI_OFFSET eip, -3*4 #define RING0_PTREGS_FRAME \ CFI_STARTPROC simple;\ + CFI_SIGNAL_FRAME;\ CFI_DEF_CFA esp, OLDESP-EBX;\ /*CFI_OFFSET cs, CS-OLDESP;*/\ CFI_OFFSET eip, EIP-OLDESP;\ @@ -275,6 +278,7 @@ need_resched: # sysenter call handler stub ENTRY(sysenter_entry) CFI_STARTPROC simple + CFI_SIGNAL_FRAME CFI_DEF_CFA esp, 0 CFI_REGISTER esp, ebp movl TSS_sysenter_esp0(%esp),%esp diff --git a/arch/x86_64/Makefile b/arch/x86_64/Makefile index 2b8d07c70106..1c0f18d4f887 100644 --- a/arch/x86_64/Makefile +++ b/arch/x86_64/Makefile @@ -58,6 +58,10 @@ cflags-y += $(call cc-option,-mno-sse -mno-mmx -mno-sse2 -mno-3dnow,) cflags-y += $(call as-instr,.cfi_startproc\n.cfi_endproc,-DCONFIG_AS_CFI=1,) AFLAGS += $(call as-instr,.cfi_startproc\n.cfi_endproc,-DCONFIG_AS_CFI=1,) +# is .cfi_signal_frame supported too? +cflags-y += $(call as-instr,.cfi_startproc\n.cfi_signal_frame\n.cfi_endproc,-DCONFIG_AS_CFI_SIGNAL_FRAME=1,) +AFLAGS += $(call as-instr,.cfi_startproc\n.cfi_signal_frame\n.cfi_endproc,-DCONFIG_AS_CFI_SIGNAL_FRAME=1,) + cflags-$(CONFIG_CC_STACKPROTECTOR) += $(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-x86_64-has-stack-protector.sh $(CC) -fstack-protector ) cflags-$(CONFIG_CC_STACKPROTECTOR_ALL) += $(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-x86_64-has-stack-protector.sh $(CC) -fstack-protector-all ) diff --git a/arch/x86_64/ia32/ia32entry.S b/arch/x86_64/ia32/ia32entry.S index 32fd32bea07c..b4aa875e175b 100644 --- a/arch/x86_64/ia32/ia32entry.S +++ b/arch/x86_64/ia32/ia32entry.S @@ -71,6 +71,7 @@ */ ENTRY(ia32_sysenter_target) CFI_STARTPROC32 simple + CFI_SIGNAL_FRAME CFI_DEF_CFA rsp,0 CFI_REGISTER rsp,rbp swapgs @@ -186,6 +187,7 @@ ENDPROC(ia32_sysenter_target) */ ENTRY(ia32_cstar_target) CFI_STARTPROC32 simple + CFI_SIGNAL_FRAME CFI_DEF_CFA rsp,PDA_STACKOFFSET CFI_REGISTER rip,rcx /*CFI_REGISTER rflags,r11*/ @@ -293,6 +295,7 @@ ia32_badarg: ENTRY(ia32_syscall) CFI_STARTPROC simple + CFI_SIGNAL_FRAME CFI_DEF_CFA rsp,SS+8-RIP /*CFI_REL_OFFSET ss,SS-RIP*/ CFI_REL_OFFSET rsp,RSP-RIP @@ -370,6 +373,7 @@ ENTRY(ia32_ptregs_common) popq %r11 CFI_ENDPROC CFI_STARTPROC32 simple + CFI_SIGNAL_FRAME CFI_DEF_CFA rsp,SS+8-ARGOFFSET CFI_REL_OFFSET rax,RAX-ARGOFFSET CFI_REL_OFFSET rcx,RCX-ARGOFFSET diff --git a/arch/x86_64/kernel/entry.S b/arch/x86_64/kernel/entry.S index ea32688386fd..4cbc65290ae7 100644 --- a/arch/x86_64/kernel/entry.S +++ b/arch/x86_64/kernel/entry.S @@ -123,6 +123,7 @@ .macro CFI_DEFAULT_STACK start=1 .if \start CFI_STARTPROC simple + CFI_SIGNAL_FRAME CFI_DEF_CFA rsp,SS+8 .else CFI_DEF_CFA_OFFSET SS+8 @@ -207,6 +208,7 @@ END(ret_from_fork) ENTRY(system_call) CFI_STARTPROC simple + CFI_SIGNAL_FRAME CFI_DEF_CFA rsp,PDA_STACKOFFSET CFI_REGISTER rip,rcx /*CFI_REGISTER rflags,r11*/ @@ -324,6 +326,7 @@ END(system_call) */ ENTRY(int_ret_from_sys_call) CFI_STARTPROC simple + CFI_SIGNAL_FRAME CFI_DEF_CFA rsp,SS+8-ARGOFFSET /*CFI_REL_OFFSET ss,SS-ARGOFFSET*/ CFI_REL_OFFSET rsp,RSP-ARGOFFSET @@ -484,6 +487,7 @@ END(stub_rt_sigreturn) */ .macro _frame ref CFI_STARTPROC simple + CFI_SIGNAL_FRAME CFI_DEF_CFA rsp,SS+8-\ref /*CFI_REL_OFFSET ss,SS-\ref*/ CFI_REL_OFFSET rsp,RSP-\ref diff --git a/include/asm-i386/dwarf2.h b/include/asm-i386/dwarf2.h index 5d1a8db5a9b0..6d66398a307d 100644 --- a/include/asm-i386/dwarf2.h +++ b/include/asm-i386/dwarf2.h @@ -28,6 +28,12 @@ #define CFI_RESTORE_STATE .cfi_restore_state #define CFI_UNDEFINED .cfi_undefined +#ifdef CONFIG_AS_CFI_SIGNAL_FRAME +#define CFI_SIGNAL_FRAME .cfi_signal_frame +#else +#define CFI_SIGNAL_FRAME +#endif + #else /* Due to the structure of pre-exisiting code, don't use assembler line @@ -48,6 +54,7 @@ #define CFI_REMEMBER_STATE ignore #define CFI_RESTORE_STATE ignore #define CFI_UNDEFINED ignore +#define CFI_SIGNAL_FRAME ignore #endif diff --git a/include/asm-i386/unwind.h b/include/asm-i386/unwind.h index f0ac399bae3c..5031d693b89d 100644 --- a/include/asm-i386/unwind.h +++ b/include/asm-i386/unwind.h @@ -18,6 +18,7 @@ struct unwind_frame_info { struct pt_regs regs; struct task_struct *task; + unsigned call_frame:1; }; #define UNW_PC(frame) (frame)->regs.eip @@ -44,6 +45,10 @@ struct unwind_frame_info PTREGS_INFO(edi), \ PTREGS_INFO(eip) +#define UNW_DEFAULT_RA(raItem, dataAlign) \ + ((raItem).where == Memory && \ + !((raItem).value * (dataAlign) + 4)) + static inline void arch_unw_init_frame_info(struct unwind_frame_info *info, /*const*/ struct pt_regs *regs) { diff --git a/include/asm-x86_64/dwarf2.h b/include/asm-x86_64/dwarf2.h index 2b9368365fad..eedc08526b0b 100644 --- a/include/asm-x86_64/dwarf2.h +++ b/include/asm-x86_64/dwarf2.h @@ -28,6 +28,11 @@ #define CFI_REMEMBER_STATE .cfi_remember_state #define CFI_RESTORE_STATE .cfi_restore_state #define CFI_UNDEFINED .cfi_undefined +#ifdef CONFIG_AS_CFI_SIGNAL_FRAME +#define CFI_SIGNAL_FRAME .cfi_signal_frame +#else +#define CFI_SIGNAL_FRAME +#endif #else @@ -45,6 +50,7 @@ #define CFI_REMEMBER_STATE # #define CFI_RESTORE_STATE # #define CFI_UNDEFINED # +#define CFI_SIGNAL_FRAME # #endif diff --git a/include/asm-x86_64/unwind.h b/include/asm-x86_64/unwind.h index 1f6e9bfb569e..b8fa5cb7ff88 100644 --- a/include/asm-x86_64/unwind.h +++ b/include/asm-x86_64/unwind.h @@ -18,6 +18,7 @@ struct unwind_frame_info { struct pt_regs regs; struct task_struct *task; + unsigned call_frame:1; }; #define UNW_PC(frame) (frame)->regs.rip @@ -57,6 +58,10 @@ struct unwind_frame_info PTREGS_INFO(r15), \ PTREGS_INFO(rip) +#define UNW_DEFAULT_RA(raItem, dataAlign) \ + ((raItem).where == Memory && \ + !((raItem).value * (dataAlign) + 8)) + static inline void arch_unw_init_frame_info(struct unwind_frame_info *info, /*const*/ struct pt_regs *regs) { diff --git a/kernel/unwind.c b/kernel/unwind.c index f69c804c8e62..3430475fcd88 100644 --- a/kernel/unwind.c +++ b/kernel/unwind.c @@ -603,6 +603,7 @@ int unwind(struct unwind_frame_info *frame) #define FRAME_REG(r, t) (((t *)frame)[reg_info[r].offs]) const u32 *fde = NULL, *cie = NULL; const u8 *ptr = NULL, *end = NULL; + unsigned long pc = UNW_PC(frame) - frame->call_frame; unsigned long startLoc = 0, endLoc = 0, cfa; unsigned i; signed ptrType = -1; @@ -612,7 +613,7 @@ int unwind(struct unwind_frame_info *frame) if (UNW_PC(frame) == 0) return -EINVAL; - if ((table = find_table(UNW_PC(frame))) != NULL + if ((table = find_table(pc)) != NULL && !(table->size & (sizeof(*fde) - 1))) { unsigned long tableSize = table->size; @@ -647,7 +648,7 @@ int unwind(struct unwind_frame_info *frame) ptrType & DW_EH_PE_indirect ? ptrType : ptrType & (DW_EH_PE_FORM|DW_EH_PE_signed)); - if (UNW_PC(frame) >= startLoc && UNW_PC(frame) < endLoc) + if (pc >= startLoc && pc < endLoc) break; cie = NULL; } @@ -657,16 +658,28 @@ int unwind(struct unwind_frame_info *frame) state.cieEnd = ptr; /* keep here temporarily */ ptr = (const u8 *)(cie + 2); end = (const u8 *)(cie + 1) + *cie; + frame->call_frame = 1; if ((state.version = *ptr) != 1) cie = NULL; /* unsupported version */ else if (*++ptr) { /* check if augmentation size is first (and thus present) */ if (*ptr == 'z') { - /* check for ignorable (or already handled) - * nul-terminated augmentation string */ - while (++ptr < end && *ptr) - if (strchr("LPR", *ptr) == NULL) + while (++ptr < end && *ptr) { + switch(*ptr) { + /* check for ignorable (or already handled) + * nul-terminated augmentation string */ + case 'L': + case 'P': + case 'R': + continue; + case 'S': + frame->call_frame = 0; + continue; + default: break; + } + break; + } } if (ptr >= end || *ptr) cie = NULL; @@ -755,7 +768,7 @@ int unwind(struct unwind_frame_info *frame) state.org = startLoc; memcpy(&state.cfa, &badCFA, sizeof(state.cfa)); /* process instructions */ - if (!processCFI(ptr, end, UNW_PC(frame), ptrType, &state) + if (!processCFI(ptr, end, pc, ptrType, &state) || state.loc > endLoc || state.regs[retAddrReg].where == Nowhere || state.cfa.reg >= ARRAY_SIZE(reg_info) @@ -763,6 +776,11 @@ int unwind(struct unwind_frame_info *frame) || state.cfa.offs % sizeof(unsigned long)) return -EIO; /* update frame */ +#ifndef CONFIG_AS_CFI_SIGNAL_FRAME + if(frame->call_frame + && !UNW_DEFAULT_RA(state.regs[retAddrReg], state.dataAlign)) + frame->call_frame = 0; +#endif cfa = FRAME_REG(state.cfa.reg, unsigned long) + state.cfa.offs; startLoc = min((unsigned long)UNW_SP(frame), cfa); endLoc = max((unsigned long)UNW_SP(frame), cfa); @@ -866,6 +884,7 @@ int unwind_init_frame_info(struct unwind_frame_info *info, /*const*/ struct pt_regs *regs) { info->task = tsk; + info->call_frame = 0; arch_unw_init_frame_info(info, regs); return 0; @@ -879,6 +898,7 @@ int unwind_init_blocked(struct unwind_frame_info *info, struct task_struct *tsk) { info->task = tsk; + info->call_frame = 0; arch_unw_init_blocked(info); return 0; @@ -894,6 +914,7 @@ int unwind_init_running(struct unwind_frame_info *info, void *arg) { info->task = current; + info->call_frame = 0; return arch_unwind_init_running(info, callback, arg); } diff --git a/scripts/Kbuild.include b/scripts/Kbuild.include index 7adef12a0c26..4f5ff19b992b 100644 --- a/scripts/Kbuild.include +++ b/scripts/Kbuild.include @@ -66,8 +66,8 @@ as-option = $(shell if $(CC) $(CFLAGS) $(1) -Wa,-Z -c -o /dev/null \ # as-instr # Usage: cflags-y += $(call as-instr, instr, option1, option2) -as-instr = $(shell if echo -e "$(1)" | $(AS) -Z -o astest$$$$.out \ - 2>&1 >/dev/null ; then echo "$(2)"; else echo "$(3)"; fi; \ +as-instr = $(shell if echo -e "$(1)" | $(AS) >/dev/null 2>&1 -W -Z -o astest$$$$.out ; \ + then echo "$(2)"; else echo "$(3)"; fi; \ rm -f astest$$$$.out) # cc-option -- cgit v1.2.3 From 658fdbef66e5e9be79b457edc2cbbb3add840aa9 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Tue, 26 Sep 2006 10:52:41 +0200 Subject: [PATCH] Don't leak NT bit into next task SYSENTER can cause a NT to be set which might cause crashes on the IRET in the next task. Following similar i386 patch from Linus. Signed-off-by: Andi Kleen --- arch/x86_64/kernel/entry.S | 4 ++++ arch/x86_64/kernel/setup64.c | 4 ++++ include/asm-x86_64/system.h | 5 +++-- 3 files changed, 11 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/arch/x86_64/kernel/entry.S b/arch/x86_64/kernel/entry.S index 4cbc65290ae7..2802524104f3 100644 --- a/arch/x86_64/kernel/entry.S +++ b/arch/x86_64/kernel/entry.S @@ -155,6 +155,10 @@ /* rdi: prev */ ENTRY(ret_from_fork) CFI_DEFAULT_STACK + push kernel_eflags(%rip) + CFI_ADJUST_CFA_OFFSET 4 + popf # reset kernel eflags + CFI_ADJUST_CFA_OFFSET -4 call schedule_tail GET_THREAD_INFO(%rcx) testl $(_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT),threadinfo_flags(%rcx) diff --git a/arch/x86_64/kernel/setup64.c b/arch/x86_64/kernel/setup64.c index 9332d2361e08..8c4b80fe71a1 100644 --- a/arch/x86_64/kernel/setup64.c +++ b/arch/x86_64/kernel/setup64.c @@ -180,6 +180,8 @@ void __cpuinit check_efer(void) } } +unsigned long kernel_eflags; + /* * cpu_init() initializes state that is per-CPU. Some data is already * initialized (naturally) in the bootstrap process, such as the GDT @@ -281,4 +283,6 @@ void __cpuinit cpu_init (void) set_debugreg(0UL, 7); fpu_init(); + + raw_local_save_flags(kernel_eflags); } diff --git a/include/asm-x86_64/system.h b/include/asm-x86_64/system.h index 6bf170bceae1..bd376bc8c4ab 100644 --- a/include/asm-x86_64/system.h +++ b/include/asm-x86_64/system.h @@ -14,12 +14,13 @@ #define __RESTORE(reg,offset) "movq (14-" #offset ")*8(%%rsp),%%" #reg "\n\t" /* frame pointer must be last for get_wchan */ -#define SAVE_CONTEXT "pushq %%rbp ; movq %%rsi,%%rbp\n\t" -#define RESTORE_CONTEXT "movq %%rbp,%%rsi ; popq %%rbp\n\t" +#define SAVE_CONTEXT "pushf ; pushq %%rbp ; movq %%rsi,%%rbp\n\t" +#define RESTORE_CONTEXT "movq %%rbp,%%rsi ; popq %%rbp ; popf\t" #define __EXTRA_CLOBBER \ ,"rcx","rbx","rdx","r8","r9","r10","r11","r12","r13","r14","r15" +/* Save restore flags to clear handle leaking NT */ #define switch_to(prev,next,last) \ asm volatile(SAVE_CONTEXT \ "movq %%rsp,%P[threadrsp](%[prev])\n\t" /* save RSP */ \ -- cgit v1.2.3 From 8f60774a116ced9b73ae3913d511687889efe725 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Tue, 26 Sep 2006 10:52:41 +0200 Subject: [PATCH] x86: Move direct PCI scanning functions out of line Saves about 200 bytes of code space. Signed-off-by: Andi Kleen --- arch/i386/pci/Makefile | 2 +- arch/i386/pci/early.c | 44 +++++++++++++++++++++++++++++++++++++++++ arch/x86_64/pci/Makefile | 3 ++- include/asm-x86_64/pci-direct.h | 42 ++++----------------------------------- 4 files changed, 51 insertions(+), 40 deletions(-) create mode 100644 arch/i386/pci/early.c (limited to 'include') diff --git a/arch/i386/pci/Makefile b/arch/i386/pci/Makefile index 62ad75c57e6a..1594d2f55c8f 100644 --- a/arch/i386/pci/Makefile +++ b/arch/i386/pci/Makefile @@ -11,4 +11,4 @@ pci-y += legacy.o irq.o pci-$(CONFIG_X86_VISWS) := visws.o fixup.o pci-$(CONFIG_X86_NUMAQ) := numa.o irq.o -obj-y += $(pci-y) common.o +obj-y += $(pci-y) common.o early.o diff --git a/arch/i386/pci/early.c b/arch/i386/pci/early.c new file mode 100644 index 000000000000..b1f7f40d809b --- /dev/null +++ b/arch/i386/pci/early.c @@ -0,0 +1,44 @@ +#include +#include +#include + +/* 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); + return v; +} + +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); + return v; +} + +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); + 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); + outl(0x80000000 | (bus<<16) | (slot<<11) | (func<<8) | offset, 0xcf8); + outl(val, 0xcfc); +} diff --git a/arch/x86_64/pci/Makefile b/arch/x86_64/pci/Makefile index a3f6ad570179..1eb18f421edf 100644 --- a/arch/x86_64/pci/Makefile +++ b/arch/x86_64/pci/Makefile @@ -9,7 +9,7 @@ obj-y := i386.o obj-$(CONFIG_PCI_DIRECT)+= direct.o obj-y += fixup.o init.o obj-$(CONFIG_ACPI) += acpi.o -obj-y += legacy.o irq.o common.o +obj-y += legacy.o irq.o common.o early.o # mmconfig has a 64bit special obj-$(CONFIG_PCI_MMCONFIG) += mmconfig.o direct.o @@ -23,3 +23,4 @@ common-y += ../../i386/pci/common.o fixup-y += ../../i386/pci/fixup.o i386-y += ../../i386/pci/i386.o init-y += ../../i386/pci/init.o +early-y += ../../i386/pci/early.o diff --git a/include/asm-x86_64/pci-direct.h b/include/asm-x86_64/pci-direct.h index 036b6ca5b53b..9d916cdaa18e 100644 --- a/include/asm-x86_64/pci-direct.h +++ b/include/asm-x86_64/pci-direct.h @@ -2,47 +2,13 @@ #define ASM_PCI_DIRECT_H 1 #include -#include /* Direct PCI access. This is used for PCI accesses in early boot before the PCI subsystem works. */ -#define PDprintk(x...) - -static inline 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); - return v; -} - -static inline 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); - return v; -} - -static inline 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); - return v; -} - -static inline void write_pci_config(u8 bus, u8 slot, u8 func, u8 offset, - u32 val) -{ - PDprintk("%x writing to %x: %x\n", slot, offset, val); - outl(0x80000000 | (bus<<16) | (slot<<11) | (func<<8) | offset, 0xcf8); - outl(val, 0xcfc); -} +extern u32 read_pci_config(u8 bus, u8 slot, u8 func, u8 offset); +extern u8 read_pci_config_byte(u8 bus, u8 slot, u8 func, u8 offset); +extern u16 read_pci_config_16(u8 bus, u8 slot, u8 func, u8 offset); +extern void write_pci_config(u8 bus, u8 slot, u8 func, u8 offset, u32 val); #endif -- cgit v1.2.3 From 0637a70a5db98182d9ad3d6ae1ee30acf20afde9 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Tue, 26 Sep 2006 10:52:41 +0200 Subject: [PATCH] x86: Allow disabling early pci scans with pci=noearly or disallowing conf1 Some buggy systems can machine check when config space accesses happen for some non existent devices. i386/x86-64 do some early device scans that might trigger this. Allow pci=noearly to disable this. Also when type 1 is disabling also don't do any early accesses which are always type1. This moves the pci= configuration parsing to be a early parameter. I don't think this can break anything because it only changes a single global that is only used by PCI. Cc: gregkh@suse.de Cc: Trammell Hudson Signed-off-by: Andi Kleen --- Documentation/kernel-parameters.txt | 6 +++++- arch/i386/kernel/acpi/earlyquirk.c | 6 +++++- arch/i386/pci/common.c | 4 ++++ arch/i386/pci/early.c | 8 ++++++++ arch/i386/pci/pci.h | 1 + arch/x86_64/kernel/aperture.c | 2 +- arch/x86_64/kernel/early-quirks.c | 4 ++++ arch/x86_64/kernel/pci-calgary.c | 3 +++ arch/x86_64/kernel/vsmp.c | 3 +++ arch/x86_64/mm/k8topology.c | 3 +++ drivers/pci/pci.c | 5 ++--- include/asm-x86_64/pci-direct.h | 2 ++ 12 files changed, 41 insertions(+), 6 deletions(-) (limited to 'include') diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 71d05f481727..4ae99f6e9938 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -1240,7 +1240,11 @@ running once the system is up. bootloader. This is currently used on IXP2000 systems where the bus has to be configured a certain way for adjunct CPUs. - + noearly [X86] Don't do any early type 1 scanning. + This might help on some broken boards which + machine check when some devices' config space + is read. But various workarounds are disabled + and some IOMMU drivers will not work. pcmv= [HW,PCMCIA] BadgePAD 4 pd. [PARIDE] diff --git a/arch/i386/kernel/acpi/earlyquirk.c b/arch/i386/kernel/acpi/earlyquirk.c index 1649a175a206..fe799b11ac0a 100644 --- a/arch/i386/kernel/acpi/earlyquirk.c +++ b/arch/i386/kernel/acpi/earlyquirk.c @@ -48,7 +48,11 @@ void __init check_acpi_pci(void) int num, slot, func; /* Assume the machine supports type 1. If not it will - always read ffffffff and should not have any side effect. */ + always read ffffffff and should not have any side effect. + Actually a few buggy systems can machine check. Allow the user + to disable it by command line option at least -AK */ + if (!early_pci_allowed()) + return; /* Poor man's PCI discovery */ for (num = 0; num < 32; num++) { diff --git a/arch/i386/pci/common.c b/arch/i386/pci/common.c index 0a362e3aeac5..68bce194e688 100644 --- a/arch/i386/pci/common.c +++ b/arch/i386/pci/common.c @@ -242,6 +242,10 @@ char * __devinit pcibios_setup(char *str) acpi_noirq_set(); return NULL; } + else if (!strcmp(str, "noearly")) { + pci_probe |= PCI_PROBE_NOEARLY; + return NULL; + } #ifndef CONFIG_X86_VISWS else if (!strcmp(str, "usepirqmask")) { pci_probe |= PCI_USE_PIRQ_MASK; diff --git a/arch/i386/pci/early.c b/arch/i386/pci/early.c index b1f7f40d809b..713d6c866cae 100644 --- a/arch/i386/pci/early.c +++ b/arch/i386/pci/early.c @@ -1,6 +1,8 @@ #include +#include #include #include +#include "pci.h" /* Direct PCI access. This is used for PCI accesses in early boot before the PCI subsystem works. */ @@ -42,3 +44,9 @@ void write_pci_config(u8 bus, u8 slot, u8 func, u8 offset, outl(0x80000000 | (bus<<16) | (slot<<11) | (func<<8) | offset, 0xcf8); outl(val, 0xcfc); } + +int early_pci_allowed(void) +{ + return (pci_probe & (PCI_PROBE_CONF1|PCI_PROBE_NOEARLY)) == + PCI_PROBE_CONF1; +} diff --git a/arch/i386/pci/pci.h b/arch/i386/pci/pci.h index 8a7cf1f23684..1814f74569c6 100644 --- a/arch/i386/pci/pci.h +++ b/arch/i386/pci/pci.h @@ -17,6 +17,7 @@ #define PCI_PROBE_CONF2 0x0004 #define PCI_PROBE_MMCONF 0x0008 #define PCI_PROBE_MASK 0x000f +#define PCI_PROBE_NOEARLY 0x0010 #define PCI_NO_SORT 0x0100 #define PCI_BIOS_SORT 0x0200 diff --git a/arch/x86_64/kernel/aperture.c b/arch/x86_64/kernel/aperture.c index f851e1f9c82a..b487396c4c5b 100644 --- a/arch/x86_64/kernel/aperture.c +++ b/arch/x86_64/kernel/aperture.c @@ -212,7 +212,7 @@ void __init iommu_hole_init(void) u64 aper_base, last_aper_base = 0; int valid_agp = 0; - if (iommu_aperture_disabled || !fix_aperture) + if (iommu_aperture_disabled || !fix_aperture || !early_pci_allowed()) return; printk("Checking aperture...\n"); diff --git a/arch/x86_64/kernel/early-quirks.c b/arch/x86_64/kernel/early-quirks.c index d637cff1c4b1..208e38a372c1 100644 --- a/arch/x86_64/kernel/early-quirks.c +++ b/arch/x86_64/kernel/early-quirks.c @@ -82,6 +82,10 @@ static struct chipset early_qrk[] = { void __init early_quirks(void) { int num, slot, func; + + if (!early_pci_allowed()) + return; + /* Poor man's PCI discovery */ for (num = 0; num < 32; num++) { for (slot = 0; slot < 32; slot++) { diff --git a/arch/x86_64/kernel/pci-calgary.c b/arch/x86_64/kernel/pci-calgary.c index 466588f95601..cfb09b07ae99 100644 --- a/arch/x86_64/kernel/pci-calgary.c +++ b/arch/x86_64/kernel/pci-calgary.c @@ -924,6 +924,9 @@ void __init detect_calgary(void) if (swiotlb || no_iommu || iommu_detected) return; + if (!early_pci_allowed()) + return; + specified_table_size = determine_tce_table_size(end_pfn * PAGE_SIZE); for (bus = 0; bus < MAX_PHB_BUS_NUM; bus++) { diff --git a/arch/x86_64/kernel/vsmp.c b/arch/x86_64/kernel/vsmp.c index 92f70c74965f..044e852bd25e 100644 --- a/arch/x86_64/kernel/vsmp.c +++ b/arch/x86_64/kernel/vsmp.c @@ -20,6 +20,9 @@ static int __init vsmp_init(void) void *address; unsigned int cap, ctl; + if (!early_pci_allowed()) + return 0; + /* Check if we are running on a ScaleMP vSMP box */ if ((read_pci_config_16(0, 0x1f, 0, PCI_VENDOR_ID) != PCI_VENDOR_ID_SCALEMP) || (read_pci_config_16(0, 0x1f, 0, PCI_DEVICE_ID) != PCI_DEVICE_ID_SCALEMP_VSMP_CTL)) diff --git a/arch/x86_64/mm/k8topology.c b/arch/x86_64/mm/k8topology.c index 7c45c2d2b8b2..5cf594f9230d 100644 --- a/arch/x86_64/mm/k8topology.c +++ b/arch/x86_64/mm/k8topology.c @@ -54,6 +54,9 @@ int __init k8_scan_nodes(unsigned long start, unsigned long end) nodes_clear(nodes_parsed); + if (!early_pci_allowed()) + return -1; + nb = find_northbridge(); if (nb < 0) return nb; diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 9f79dd6d51ab..684deb6b03aa 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -953,13 +953,12 @@ static int __devinit pci_setup(char *str) } str = k; } - return 1; + return 0; } +early_param("pci", pci_setup); device_initcall(pci_init); -__setup("pci=", pci_setup); - #if defined(CONFIG_ISA) || defined(CONFIG_EISA) /* FIXME: Some boxes have multiple ISA bridges! */ struct pci_dev *isa_bridge; diff --git a/include/asm-x86_64/pci-direct.h b/include/asm-x86_64/pci-direct.h index 9d916cdaa18e..eba9cb471df3 100644 --- a/include/asm-x86_64/pci-direct.h +++ b/include/asm-x86_64/pci-direct.h @@ -11,4 +11,6 @@ extern u8 read_pci_config_byte(u8 bus, u8 slot, u8 func, u8 offset); extern u16 read_pci_config_16(u8 bus, u8 slot, u8 func, u8 offset); extern void write_pci_config(u8 bus, u8 slot, u8 func, u8 offset, u32 val); +extern int early_pci_allowed(void); + #endif -- cgit v1.2.3 From b89ebd0b0a65d5371aa9ad98e873c4616056ca68 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Tue, 26 Sep 2006 10:52:42 +0200 Subject: [PATCH] Fix unwinder warning in traps.c Fix linux/arch/x86_64/kernel/traps.c: In function 'dump_trace': linux/arch/x86_64/kernel/traps.c:275: warning: cast to pointer from integer of different size with allnoconfig Cc: jbeulich@novell.com Signed-off-by: Andi Kleen --- include/asm-x86_64/unwind.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/asm-x86_64/unwind.h b/include/asm-x86_64/unwind.h index b8fa5cb7ff88..2e7ff10fd775 100644 --- a/include/asm-x86_64/unwind.h +++ b/include/asm-x86_64/unwind.h @@ -99,8 +99,8 @@ static inline int arch_unw_user_mode(const struct unwind_frame_info *info) #else -#define UNW_PC(frame) ((void)(frame), 0) -#define UNW_SP(frame) ((void)(frame), 0) +#define UNW_PC(frame) ((void)(frame), 0UL) +#define UNW_SP(frame) ((void)(frame), 0UL) static inline int arch_unw_user_mode(const void *info) { -- cgit v1.2.3 From 3b171672831b9633c2ed8fa94805255cd4d5af19 Mon Sep 17 00:00:00 2001 From: Dmitriy Zavin Date: Tue, 26 Sep 2006 10:52:42 +0200 Subject: [PATCH] Add 64bit jiffies compares (for use with get_jiffies_64) The current time_before/time_after macros will fail typechecks when passed u64 values (as returned by get_jiffies_64()). On 64bit systems, this will just result in a warning about mismatching types without explicit casts, but since unsigned long and u64 (unsigned long long) are of same size, it will still work. On 32bit systems, a long is 32bits, so the value from get_jiffies_64() will be truncated by the cast and thus lose all the precision gained by 64bit jiffies. Signed-off-by: Dmitriy Zavin Signed-off-by: Andi Kleen --- include/linux/jiffies.h | 15 +++++++++++++++ 1 file changed, 15 insertions(+) (limited to 'include') diff --git a/include/linux/jiffies.h b/include/linux/jiffies.h index 329ebcffa106..c8d5f207c3d4 100644 --- a/include/linux/jiffies.h +++ b/include/linux/jiffies.h @@ -115,6 +115,21 @@ static inline u64 get_jiffies_64(void) ((long)(a) - (long)(b) >= 0)) #define time_before_eq(a,b) time_after_eq(b,a) +/* Same as above, but does so with platform independent 64bit types. + * These must be used when utilizing jiffies_64 (i.e. return value of + * get_jiffies_64() */ +#define time_after64(a,b) \ + (typecheck(__u64, a) && \ + typecheck(__u64, b) && \ + ((__s64)(b) - (__s64)(a) < 0)) +#define time_before64(a,b) time_after64(b,a) + +#define time_after_eq64(a,b) \ + (typecheck(__u64, a) && \ + typecheck(__u64, b) && \ + ((__s64)(a) - (__s64)(b) >= 0)) +#define time_before_eq64(a,b) time_after_eq64(b,a) + /* * Have the 32 bit jiffies value wrap 5 minutes after boot * so jiffies wrap bugs show up earlier. -- cgit v1.2.3 From 15d5f8398311f565682959daaca30e3ca7aea600 Mon Sep 17 00:00:00 2001 From: Dmitriy Zavin Date: Tue, 26 Sep 2006 10:52:42 +0200 Subject: [PATCH] x86: Refactor thermal throttle processing Refactor the event processing (syslog messaging and rate limiting) into separate file therm_throt.c. This allows consistent reporting of CPU thermal throttle events. After ACK'ing the interrupt, if the event is current, the user (p4.c/mce_intel.c) calls therm_throt_process to log (and rate limit) the event. If that function returns 1, the user has the option to log things further (such as to mce_log in x86_64). AK: minor cleanup Signed-off-by: Dmitriy Zavin Signed-off-by: Andi Kleen --- arch/i386/kernel/cpu/mcheck/Makefile | 2 +- arch/i386/kernel/cpu/mcheck/p4.c | 23 ++++-------- arch/i386/kernel/cpu/mcheck/therm_throt.c | 58 +++++++++++++++++++++++++++++++ arch/x86_64/kernel/Makefile | 4 +-- arch/x86_64/kernel/mce.c | 27 ++++++++++++++ arch/x86_64/kernel/mce_intel.c | 27 ++++---------- include/asm-i386/therm_throt.h | 6 ++++ include/asm-x86_64/mce.h | 2 ++ include/asm-x86_64/therm_throt.h | 1 + 9 files changed, 109 insertions(+), 41 deletions(-) create mode 100644 arch/i386/kernel/cpu/mcheck/therm_throt.c create mode 100644 include/asm-i386/therm_throt.h create mode 100644 include/asm-x86_64/therm_throt.h (limited to 'include') diff --git a/arch/i386/kernel/cpu/mcheck/Makefile b/arch/i386/kernel/cpu/mcheck/Makefile index 30808f3d6715..f1ebe1c1c17a 100644 --- a/arch/i386/kernel/cpu/mcheck/Makefile +++ b/arch/i386/kernel/cpu/mcheck/Makefile @@ -1,2 +1,2 @@ -obj-y = mce.o k7.o p4.o p5.o p6.o winchip.o +obj-y = mce.o k7.o p4.o p5.o p6.o winchip.o therm_throt.o obj-$(CONFIG_X86_MCE_NONFATAL) += non-fatal.o diff --git a/arch/i386/kernel/cpu/mcheck/p4.c b/arch/i386/kernel/cpu/mcheck/p4.c index b95f1b3d53aa..d83a669d376f 100644 --- a/arch/i386/kernel/cpu/mcheck/p4.c +++ b/arch/i386/kernel/cpu/mcheck/p4.c @@ -13,6 +13,8 @@ #include #include +#include + #include "mce.h" /* as supported by the P4/Xeon family */ @@ -44,25 +46,12 @@ static void unexpected_thermal_interrupt(struct pt_regs *regs) /* P4/Xeon Thermal transition interrupt handler */ static void intel_thermal_interrupt(struct pt_regs *regs) { - u32 l, h; - unsigned int cpu = smp_processor_id(); - static unsigned long next[NR_CPUS]; + __u64 msr_val; ack_APIC_irq(); - if (time_after(next[cpu], jiffies)) - return; - - next[cpu] = jiffies + HZ*5; - rdmsr(MSR_IA32_THERM_STATUS, l, h); - if (l & 0x1) { - printk(KERN_EMERG "CPU%d: Temperature above threshold\n", cpu); - printk(KERN_EMERG "CPU%d: Running in modulated clock mode\n", - cpu); - add_taint(TAINT_MACHINE_CHECK); - } else { - printk(KERN_INFO "CPU%d: Temperature/speed normal\n", cpu); - } + rdmsrl(MSR_IA32_THERM_STATUS, msr_val); + therm_throt_process(msr_val & 0x1); } /* Thermal interrupt handler for this CPU setup */ @@ -122,7 +111,7 @@ static void intel_init_thermal(struct cpuinfo_x86 *c) rdmsr (MSR_IA32_MISC_ENABLE, l, h); wrmsr (MSR_IA32_MISC_ENABLE, l | (1<<3), h); - + l = apic_read (APIC_LVTTHMR); apic_write_around (APIC_LVTTHMR, l & ~APIC_LVT_MASKED); printk (KERN_INFO "CPU%d: Thermal monitoring enabled\n", cpu); diff --git a/arch/i386/kernel/cpu/mcheck/therm_throt.c b/arch/i386/kernel/cpu/mcheck/therm_throt.c new file mode 100644 index 000000000000..85eba00d680e --- /dev/null +++ b/arch/i386/kernel/cpu/mcheck/therm_throt.c @@ -0,0 +1,58 @@ +/* + * linux/arch/i386/kerne/cpu/mcheck/therm_throt.c + * + * Thermal throttle event support code. + * + * Author: Dmitriy Zavin (dmitriyz@google.com) + * + * Credits: Adapted from Zwane Mwaikambo's original code in mce_intel.c. + * + */ + +#include +#include +#include +#include +#include + +/* How long to wait between reporting thermal events */ +#define CHECK_INTERVAL (300 * HZ) + +static DEFINE_PER_CPU(unsigned long, next_check); + +/*** + * therm_throt_process - Process thermal throttling event + * @curr: Whether the condition is current or not (boolean), since the + * thermal interrupt normally gets called both when the thermal + * event begins and once the event has ended. + * + * This function is normally called by the thermal interrupt after the + * IRQ has been acknowledged. + * + * It will take care of rate limiting and printing messages to the syslog. + * + * Returns: 0 : Event should NOT be further logged, i.e. still in + * "timeout" from previous log message. + * 1 : Event should be logged further, and a message has been + * printed to the syslog. + */ +int therm_throt_process(int curr) +{ + unsigned int cpu = smp_processor_id(); + + if (time_before(jiffies, __get_cpu_var(next_check))) + return 0; + + __get_cpu_var(next_check) = jiffies + CHECK_INTERVAL; + + /* if we just entered the thermal event */ + if (curr) { + printk(KERN_CRIT "CPU%d: Temperature above threshold, " + "cpu clock throttled\n", cpu); + add_taint(TAINT_MACHINE_CHECK); + } else { + printk(KERN_CRIT "CPU%d: Temperature/speed normal\n", cpu); + } + + return 1; +} diff --git a/arch/x86_64/kernel/Makefile b/arch/x86_64/kernel/Makefile index 2466fbd035ee..3c7cbff04d3d 100644 --- a/arch/x86_64/kernel/Makefile +++ b/arch/x86_64/kernel/Makefile @@ -11,7 +11,7 @@ obj-y := process.o signal.o entry.o traps.o irq.o \ pci-dma.o pci-nommu.o alternative.o obj-$(CONFIG_STACKTRACE) += stacktrace.o -obj-$(CONFIG_X86_MCE) += mce.o +obj-$(CONFIG_X86_MCE) += mce.o therm_throt.o obj-$(CONFIG_X86_MCE_INTEL) += mce_intel.o obj-$(CONFIG_X86_MCE_AMD) += mce_amd.o obj-$(CONFIG_MTRR) += ../../i386/kernel/cpu/mtrr/ @@ -46,6 +46,7 @@ obj-y += intel_cacheinfo.o CFLAGS_vsyscall.o := $(PROFILING) -g0 +therm_throt-y += ../../i386/kernel/cpu/mcheck/therm_throt.o bootflag-y += ../../i386/kernel/bootflag.o cpuid-$(subst m,y,$(CONFIG_X86_CPUID)) += ../../i386/kernel/cpuid.o topology-y += ../../i386/kernel/topology.o @@ -55,4 +56,3 @@ quirks-y += ../../i386/kernel/quirks.o i8237-y += ../../i386/kernel/i8237.o msr-$(subst m,y,$(CONFIG_X86_MSR)) += ../../i386/kernel/msr.o alternative-y += ../../i386/kernel/alternative.o - diff --git a/arch/x86_64/kernel/mce.c b/arch/x86_64/kernel/mce.c index 1a93c3738404..bbea88801d88 100644 --- a/arch/x86_64/kernel/mce.c +++ b/arch/x86_64/kernel/mce.c @@ -274,6 +274,33 @@ void do_machine_check(struct pt_regs * regs, long error_code) atomic_dec(&mce_entry); } +#ifdef CONFIG_X86_MCE_INTEL +/*** + * mce_log_therm_throt_event - Logs the thermal throttling event to mcelog + * @cpu: The CPU on which the event occured. + * @status: Event status information + * + * This function should be called by the thermal interrupt after the + * event has been processed and the decision was made to log the event + * further. + * + * The status parameter will be saved to the 'status' field of 'struct mce' + * and historically has been the register value of the + * MSR_IA32_THERMAL_STATUS (Intel) msr. + */ +void mce_log_therm_throt_event(unsigned int cpu, __u64 status) +{ + struct mce m; + + memset(&m, 0, sizeof(m)); + m.cpu = cpu; + m.bank = MCE_THERMAL_BANK; + m.status = status; + rdtscll(m.tsc); + mce_log(&m); +} +#endif /* CONFIG_X86_MCE_INTEL */ + /* * Periodic polling timer for "silent" machine check errors. */ diff --git a/arch/x86_64/kernel/mce_intel.c b/arch/x86_64/kernel/mce_intel.c index 8f533d2c40cb..dec11219e278 100644 --- a/arch/x86_64/kernel/mce_intel.c +++ b/arch/x86_64/kernel/mce_intel.c @@ -11,36 +11,21 @@ #include #include #include - -static DEFINE_PER_CPU(unsigned long, next_check); +#include asmlinkage void smp_thermal_interrupt(void) { - struct mce m; + __u64 msr_val; ack_APIC_irq(); exit_idle(); irq_enter(); - if (time_before(jiffies, __get_cpu_var(next_check))) - goto done; - - __get_cpu_var(next_check) = jiffies + HZ*300; - memset(&m, 0, sizeof(m)); - m.cpu = smp_processor_id(); - m.bank = MCE_THERMAL_BANK; - rdtscll(m.tsc); - rdmsrl(MSR_IA32_THERM_STATUS, m.status); - if (m.status & 0x1) { - printk(KERN_EMERG - "CPU%d: Temperature above threshold, cpu clock throttled\n", m.cpu); - add_taint(TAINT_MACHINE_CHECK); - } else { - printk(KERN_EMERG "CPU%d: Temperature/speed normal\n", m.cpu); - } - mce_log(&m); -done: + rdmsrl(MSR_IA32_THERM_STATUS, msr_val); + if (therm_throt_process(msr_val & 1)) + mce_log_therm_throt_event(smp_processor_id(), msr_val); + irq_exit(); } diff --git a/include/asm-i386/therm_throt.h b/include/asm-i386/therm_throt.h new file mode 100644 index 000000000000..3c9c22cc10c9 --- /dev/null +++ b/include/asm-i386/therm_throt.h @@ -0,0 +1,6 @@ +#ifndef __ASM_I386_THERM_THROT_H__ +#define __ASM_I386_THERM_THROT_H__ 1 + +int therm_throt_process(int curr); + +#endif /* __ASM_I386_THERM_THROT_H__ */ diff --git a/include/asm-x86_64/mce.h b/include/asm-x86_64/mce.h index d13687dfd691..5a11146d6d9c 100644 --- a/include/asm-x86_64/mce.h +++ b/include/asm-x86_64/mce.h @@ -99,6 +99,8 @@ static inline void mce_amd_feature_init(struct cpuinfo_x86 *c) } #endif +void mce_log_therm_throt_event(unsigned int cpu, __u64 status); + extern atomic_t mce_entry; #endif diff --git a/include/asm-x86_64/therm_throt.h b/include/asm-x86_64/therm_throt.h new file mode 100644 index 000000000000..5aac059007ba --- /dev/null +++ b/include/asm-x86_64/therm_throt.h @@ -0,0 +1 @@ +#include -- cgit v1.2.3 From 3222b36f46c22f46697a0a53fa8804153a32669f Mon Sep 17 00:00:00 2001 From: Dmitriy Zavin Date: Tue, 26 Sep 2006 10:52:42 +0200 Subject: [PATCH] x86: Add a cumulative thermal throttle event counter. The counter is exported to /sys that keeps track of the number of thermal events, such that the user knows how bad the thermal problem might be (since the logging to syslog and mcelog is rate limited). AK: Fixed cpu hotplug locking Signed-off-by: Dmitriy Zavin Signed-off-by: Andi Kleen --- arch/i386/kernel/cpu/mcheck/p4.c | 3 + arch/i386/kernel/cpu/mcheck/therm_throt.c | 133 ++++++++++++++++++++++++++++-- arch/x86_64/kernel/mce_intel.c | 3 + include/asm-i386/therm_throt.h | 3 + 4 files changed, 136 insertions(+), 6 deletions(-) (limited to 'include') diff --git a/arch/i386/kernel/cpu/mcheck/p4.c b/arch/i386/kernel/cpu/mcheck/p4.c index d83a669d376f..504434a46011 100644 --- a/arch/i386/kernel/cpu/mcheck/p4.c +++ b/arch/i386/kernel/cpu/mcheck/p4.c @@ -115,6 +115,9 @@ static void intel_init_thermal(struct cpuinfo_x86 *c) l = apic_read (APIC_LVTTHMR); apic_write_around (APIC_LVTTHMR, l & ~APIC_LVT_MASKED); printk (KERN_INFO "CPU%d: Thermal monitoring enabled\n", cpu); + + /* enable thermal throttle processing */ + atomic_set(&therm_throt_en, 1); return; } #endif /* CONFIG_X86_MCE_P4THERMAL */ diff --git a/arch/i386/kernel/cpu/mcheck/therm_throt.c b/arch/i386/kernel/cpu/mcheck/therm_throt.c index 101f7ace00ce..4f43047de406 100644 --- a/arch/i386/kernel/cpu/mcheck/therm_throt.c +++ b/arch/i386/kernel/cpu/mcheck/therm_throt.c @@ -1,15 +1,22 @@ /* * linux/arch/i386/kerne/cpu/mcheck/therm_throt.c * - * Thermal throttle event support code. + * Thermal throttle event support code (such as syslog messaging and rate + * limiting) that was factored out from x86_64 (mce_intel.c) and i386 (p4.c). + * This allows consistent reporting of CPU thermal throttle events. + * + * Maintains a counter in /sys that keeps track of the number of thermal + * events, such that the user knows how bad the thermal problem might be + * (since the logging to syslog and mcelog is rate limited). * * Author: Dmitriy Zavin (dmitriyz@google.com) * * Credits: Adapted from Zwane Mwaikambo's original code in mce_intel.c. - * + * Inspired by Ross Biro's and Al Borchers' counter code. */ #include +#include #include #include #include @@ -18,15 +25,53 @@ /* How long to wait between reporting thermal events */ #define CHECK_INTERVAL (300 * HZ) -static DEFINE_PER_CPU(__u64, next_check); +static DEFINE_PER_CPU(__u64, next_check) = INITIAL_JIFFIES; +static DEFINE_PER_CPU(unsigned long, thermal_throttle_count); +atomic_t therm_throt_en = ATOMIC_INIT(0); + +#ifdef CONFIG_SYSFS +#define define_therm_throt_sysdev_one_ro(_name) \ + static SYSDEV_ATTR(_name, 0444, therm_throt_sysdev_show_##_name, NULL) + +#define define_therm_throt_sysdev_show_func(name) \ +static ssize_t therm_throt_sysdev_show_##name(struct sys_device *dev, \ + char *buf) \ +{ \ + unsigned int cpu = dev->id; \ + ssize_t ret; \ + \ + preempt_disable(); /* CPU hotplug */ \ + if (cpu_online(cpu)) \ + ret = sprintf(buf, "%lu\n", \ + per_cpu(thermal_throttle_##name, cpu)); \ + else \ + ret = 0; \ + preempt_enable(); \ + \ + return ret; \ +} + +define_therm_throt_sysdev_show_func(count); +define_therm_throt_sysdev_one_ro(count); + +static struct attribute *thermal_throttle_attrs[] = { + &attr_count.attr, + NULL +}; + +static struct attribute_group thermal_throttle_attr_group = { + .attrs = thermal_throttle_attrs, + .name = "thermal_throttle" +}; +#endif /* CONFIG_SYSFS */ /*** - * therm_throt_process - Process thermal throttling event + * therm_throt_process - Process thermal throttling event from interrupt * @curr: Whether the condition is current or not (boolean), since the * thermal interrupt normally gets called both when the thermal * event begins and once the event has ended. * - * This function is normally called by the thermal interrupt after the + * This function is called by the thermal interrupt after the * IRQ has been acknowledged. * * It will take care of rate limiting and printing messages to the syslog. @@ -41,6 +86,9 @@ int therm_throt_process(int curr) unsigned int cpu = smp_processor_id(); __u64 tmp_jiffs = get_jiffies_64(); + if (curr) + __get_cpu_var(thermal_throttle_count)++; + if (time_before64(tmp_jiffs, __get_cpu_var(next_check))) return 0; @@ -49,7 +97,9 @@ int therm_throt_process(int curr) /* if we just entered the thermal event */ if (curr) { printk(KERN_CRIT "CPU%d: Temperature above threshold, " - "cpu clock throttled\n", cpu); + "cpu clock throttled (total events = %lu)\n", cpu, + __get_cpu_var(thermal_throttle_count)); + add_taint(TAINT_MACHINE_CHECK); } else { printk(KERN_CRIT "CPU%d: Temperature/speed normal\n", cpu); @@ -57,3 +107,74 @@ int therm_throt_process(int curr) return 1; } + +#ifdef CONFIG_SYSFS +/* Add/Remove thermal_throttle interface for CPU device */ +static __cpuinit int thermal_throttle_add_dev(struct sys_device * sys_dev) +{ + sysfs_create_group(&sys_dev->kobj, &thermal_throttle_attr_group); + return 0; +} + +#ifdef CONFIG_HOTPLUG_CPU +static __cpuinit int thermal_throttle_remove_dev(struct sys_device * sys_dev) +{ + sysfs_remove_group(&sys_dev->kobj, &thermal_throttle_attr_group); + return 0; +} + +/* Mutex protecting device creation against CPU hotplug */ +static DEFINE_MUTEX(therm_cpu_lock); + +/* Get notified when a cpu comes on/off. Be hotplug friendly. */ +static __cpuinit int thermal_throttle_cpu_callback(struct notifier_block *nfb, + unsigned long action, + void *hcpu) +{ + unsigned int cpu = (unsigned long)hcpu; + struct sys_device *sys_dev; + + sys_dev = get_cpu_sysdev(cpu); + mutex_lock(&therm_cpu_lock); + switch (action) { + case CPU_ONLINE: + thermal_throttle_add_dev(sys_dev); + break; + case CPU_DEAD: + thermal_throttle_remove_dev(sys_dev); + break; + } + mutex_unlock(&therm_cpu_lock); + return NOTIFY_OK; +} + +static struct notifier_block thermal_throttle_cpu_notifier = +{ + .notifier_call = thermal_throttle_cpu_callback, +}; +#endif /* CONFIG_HOTPLUG_CPU */ + +static __init int thermal_throttle_init_device(void) +{ + unsigned int cpu = 0; + + if (!atomic_read(&therm_throt_en)) + return 0; + + register_hotcpu_notifier(&thermal_throttle_cpu_notifier); + +#ifdef CONFIG_HOTPLUG_CPU + mutex_lock(&therm_cpu_lock); +#endif + /* connect live CPUs to sysfs */ + for_each_online_cpu(cpu) + thermal_throttle_add_dev(get_cpu_sysdev(cpu)); +#ifdef CONFIG_HOTPLUG_CPU + mutex_unlock(&therm_cpu_lock); +#endif + + return 0; +} + +device_initcall(thermal_throttle_init_device); +#endif /* CONFIG_SYSFS */ diff --git a/arch/x86_64/kernel/mce_intel.c b/arch/x86_64/kernel/mce_intel.c index dec11219e278..6551505d8a2c 100644 --- a/arch/x86_64/kernel/mce_intel.c +++ b/arch/x86_64/kernel/mce_intel.c @@ -77,6 +77,9 @@ static void __cpuinit intel_init_thermal(struct cpuinfo_x86 *c) apic_write(APIC_LVTTHMR, l & ~APIC_LVT_MASKED); printk(KERN_INFO "CPU%d: Thermal monitoring enabled (%s)\n", cpu, tm2 ? "TM2" : "TM1"); + + /* enable thermal throttle processing */ + atomic_set(&therm_throt_en, 1); return; } diff --git a/include/asm-i386/therm_throt.h b/include/asm-i386/therm_throt.h index 3c9c22cc10c9..399bf6026b16 100644 --- a/include/asm-i386/therm_throt.h +++ b/include/asm-i386/therm_throt.h @@ -1,6 +1,9 @@ #ifndef __ASM_I386_THERM_THROT_H__ #define __ASM_I386_THERM_THROT_H__ 1 +#include + +extern atomic_t therm_throt_en; int therm_throt_process(int curr); #endif /* __ASM_I386_THERM_THROT_H__ */ -- cgit v1.2.3 From 214ddde2f95037e129eff7e895869771719c7c1b Mon Sep 17 00:00:00 2001 From: bibo mao Date: Tue, 26 Sep 2006 11:20:37 -0700 Subject: [IA64] kprobe opcode 16 bytes alignment on IA64 On IA64 instruction opcode must be 16 bytes alignment, in kprobe structure there is one element to save original instruction, currently saved opcode is not statically allocated in kprobe structure, that can not assure 16 bytes alignment. This patch dynamically allocated kprobe instruction opcode to assure 16 bytes alignment. Signed-off-by: bibo mao Acked-by: Anil S Keshavamurthy Signed-off-by: Tony Luck --- arch/ia64/kernel/kprobes.c | 55 ++++++++++++++++++++++++---------------------- include/asm-ia64/kprobes.h | 9 ++++---- 2 files changed, 34 insertions(+), 30 deletions(-) (limited to 'include') diff --git a/arch/ia64/kernel/kprobes.c b/arch/ia64/kernel/kprobes.c index 781960f80b6f..320cb7a91c9d 100644 --- a/arch/ia64/kernel/kprobes.c +++ b/arch/ia64/kernel/kprobes.c @@ -136,10 +136,8 @@ static void __kprobes update_kprobe_inst_flag(uint template, uint slot, static int __kprobes unsupported_inst(uint template, uint slot, uint major_opcode, unsigned long kprobe_inst, - struct kprobe *p) + unsigned long addr) { - unsigned long addr = (unsigned long)p->addr; - if (bundle_encoding[template][slot] == I) { switch (major_opcode) { case 0x0: //I_UNIT_MISC_OPCODE: @@ -217,7 +215,7 @@ static void __kprobes prepare_break_inst(uint template, uint slot, struct kprobe *p) { unsigned long break_inst = BREAK_INST; - bundle_t *bundle = &p->ainsn.insn.bundle; + bundle_t *bundle = &p->opcode.bundle; /* * Copy the original kprobe_inst qualifying predicate(qp) @@ -423,11 +421,9 @@ int __kprobes arch_prepare_kprobe(struct kprobe *p) unsigned long *kprobe_addr = (unsigned long *)(addr & ~0xFULL); unsigned long kprobe_inst=0; unsigned int slot = addr & 0xf, template, major_opcode = 0; - bundle_t *bundle = &p->ainsn.insn.bundle; - - memcpy(&p->opcode.bundle, kprobe_addr, sizeof(bundle_t)); - memcpy(&p->ainsn.insn.bundle, kprobe_addr, sizeof(bundle_t)); + bundle_t *bundle; + bundle = &((kprobe_opcode_t *)kprobe_addr)->bundle; template = bundle->quad0.template; if(valid_kprobe_addr(template, slot, addr)) @@ -440,20 +436,19 @@ int __kprobes arch_prepare_kprobe(struct kprobe *p) /* Get kprobe_inst and major_opcode from the bundle */ get_kprobe_inst(bundle, slot, &kprobe_inst, &major_opcode); - if (unsupported_inst(template, slot, major_opcode, kprobe_inst, p)) + if (unsupported_inst(template, slot, major_opcode, kprobe_inst, addr)) return -EINVAL; - prepare_break_inst(template, slot, major_opcode, kprobe_inst, p); - return 0; -} + p->ainsn.insn = get_insn_slot(); + if (!p->ainsn.insn) + return -ENOMEM; + memcpy(&p->opcode, kprobe_addr, sizeof(kprobe_opcode_t)); + memcpy(p->ainsn.insn, kprobe_addr, sizeof(kprobe_opcode_t)); -void __kprobes flush_insn_slot(struct kprobe *p) -{ - unsigned long arm_addr; + prepare_break_inst(template, slot, major_opcode, kprobe_inst, p); - arm_addr = ((unsigned long)&p->opcode.bundle) & ~0xFULL; - flush_icache_range(arm_addr, arm_addr + sizeof(bundle_t)); + return 0; } void __kprobes arch_arm_kprobe(struct kprobe *p) @@ -461,9 +456,10 @@ void __kprobes arch_arm_kprobe(struct kprobe *p) unsigned long addr = (unsigned long)p->addr; unsigned long arm_addr = addr & ~0xFULL; - flush_insn_slot(p); - memcpy((char *)arm_addr, &p->ainsn.insn.bundle, sizeof(bundle_t)); - flush_icache_range(arm_addr, arm_addr + sizeof(bundle_t)); + flush_icache_range((unsigned long)p->ainsn.insn, + (unsigned long)p->ainsn.insn + sizeof(kprobe_opcode_t)); + memcpy((char *)arm_addr, &p->opcode, sizeof(kprobe_opcode_t)); + flush_icache_range(arm_addr, arm_addr + sizeof(kprobe_opcode_t)); } void __kprobes arch_disarm_kprobe(struct kprobe *p) @@ -471,11 +467,18 @@ void __kprobes arch_disarm_kprobe(struct kprobe *p) unsigned long addr = (unsigned long)p->addr; unsigned long arm_addr = addr & ~0xFULL; - /* p->opcode contains the original unaltered bundle */ - memcpy((char *) arm_addr, (char *) &p->opcode.bundle, sizeof(bundle_t)); - flush_icache_range(arm_addr, arm_addr + sizeof(bundle_t)); + /* p->ainsn.insn contains the original unaltered kprobe_opcode_t */ + memcpy((char *) arm_addr, (char *) p->ainsn.insn, + sizeof(kprobe_opcode_t)); + flush_icache_range(arm_addr, arm_addr + sizeof(kprobe_opcode_t)); } +void __kprobes arch_remove_kprobe(struct kprobe *p) +{ + mutex_lock(&kprobe_mutex); + free_insn_slot(p->ainsn.insn); + mutex_unlock(&kprobe_mutex); +} /* * We are resuming execution after a single step fault, so the pt_regs * structure reflects the register state after we executed the instruction @@ -486,12 +489,12 @@ void __kprobes arch_disarm_kprobe(struct kprobe *p) */ static void __kprobes resume_execution(struct kprobe *p, struct pt_regs *regs) { - unsigned long bundle_addr = ((unsigned long) (&p->opcode.bundle)) & ~0xFULL; + unsigned long bundle_addr = (unsigned long) (&p->ainsn.insn->bundle); unsigned long resume_addr = (unsigned long)p->addr & ~0xFULL; unsigned long template; int slot = ((unsigned long)p->addr & 0xf); - template = p->opcode.bundle.quad0.template; + template = p->ainsn.insn->bundle.quad0.template; if (slot == 1 && bundle_encoding[template][1] == L) slot = 2; @@ -553,7 +556,7 @@ turn_ss_off: static void __kprobes prepare_ss(struct kprobe *p, struct pt_regs *regs) { - unsigned long bundle_addr = (unsigned long) &p->opcode.bundle; + unsigned long bundle_addr = (unsigned long) &p->ainsn.insn->bundle; unsigned long slot = (unsigned long)p->addr & 0xf; /* single step inline if break instruction */ diff --git a/include/asm-ia64/kprobes.h b/include/asm-ia64/kprobes.h index 938904910115..1b45b71c79b9 100644 --- a/include/asm-ia64/kprobes.h +++ b/include/asm-ia64/kprobes.h @@ -29,7 +29,8 @@ #include #include -#define MAX_INSN_SIZE 16 +#define __ARCH_WANT_KPROBES_INSN_SLOT +#define MAX_INSN_SIZE 1 #define BREAK_INST (long)(__IA64_BREAK_KPROBE << 6) typedef union cmp_inst { @@ -94,7 +95,7 @@ struct kprobe_ctlblk { #define IP_RELATIVE_PREDICT_OPCODE (7) #define LONG_BRANCH_OPCODE (0xC) #define LONG_CALL_OPCODE (0xD) -#define arch_remove_kprobe(p) do {} while (0) +#define flush_insn_slot(p) do { } while (0) typedef struct kprobe_opcode { bundle_t bundle; @@ -108,7 +109,7 @@ struct fnptr { /* Architecture specific copy of original instruction*/ struct arch_specific_insn { /* copy of the instruction to be emulated */ - kprobe_opcode_t insn; + kprobe_opcode_t *insn; #define INST_FLAG_FIX_RELATIVE_IP_ADDR 1 #define INST_FLAG_FIX_BRANCH_REG 2 #define INST_FLAG_BREAK_INST 4 @@ -125,6 +126,6 @@ static inline void jprobe_return(void) } extern void invalidate_stacked_regs(void); extern void flush_register_stack(void); -extern void flush_insn_slot(struct kprobe *p); +extern void arch_remove_kprobe(struct kprobe *p); #endif /* _ASM_KPROBES_H */ -- cgit v1.2.3 From dd562c05410e13e878a3ee0deb8ac06db2e132c7 Mon Sep 17 00:00:00 2001 From: Stephane Eranian Date: Thu, 21 Sep 2006 10:35:44 -0700 Subject: [IA64] Add interface so modules can discover whether multithreading is on. Add is_multithreading_enabled() to check whether multi-threading is enabled independently of which cpu is currently online Signed-off-by: stephane eranian Signed-off-by: Tony Luck --- arch/ia64/kernel/smpboot.c | 24 ++++++++++++++++++++++++ include/asm-ia64/smp.h | 1 + 2 files changed, 25 insertions(+) (limited to 'include') diff --git a/arch/ia64/kernel/smpboot.c b/arch/ia64/kernel/smpboot.c index 6203ed4ec8cf..f7d7f5668144 100644 --- a/arch/ia64/kernel/smpboot.c +++ b/arch/ia64/kernel/smpboot.c @@ -879,3 +879,27 @@ identify_siblings(struct cpuinfo_ia64 *c) c->core_id = info.log1_cid; c->thread_id = info.log1_tid; } + +/* + * returns non zero, if multi-threading is enabled + * on at least one physical package. Due to hotplug cpu + * and (maxcpus=), all threads may not necessarily be enabled + * even though the processor supports multi-threading. + */ +int is_multithreading_enabled(void) +{ + int i, j; + + for_each_present_cpu(i) { + for_each_present_cpu(j) { + if (j == i) + continue; + if ((cpu_data(j)->socket_id == cpu_data(i)->socket_id)) { + if (cpu_data(j)->core_id == cpu_data(i)->core_id) + return 1; + } + } + } + return 0; +} +EXPORT_SYMBOL_GPL(is_multithreading_enabled); diff --git a/include/asm-ia64/smp.h b/include/asm-ia64/smp.h index 719ff309ce09..6533eb4e86ad 100644 --- a/include/asm-ia64/smp.h +++ b/include/asm-ia64/smp.h @@ -128,6 +128,7 @@ extern void smp_send_reschedule (int cpu); extern void lock_ipi_calllock(void); extern void unlock_ipi_calllock(void); extern void identify_siblings (struct cpuinfo_ia64 *); +extern int is_multithreading_enabled(void); #else -- cgit v1.2.3 From 35589a8fa8138244e7f2ef9317c440aa580c9335 Mon Sep 17 00:00:00 2001 From: Keshavamurthy Anil S Date: Tue, 26 Sep 2006 12:03:13 -0700 Subject: [IA64] Move perfmon tables from thread_struct to pfm_context This patch renders thread_struct->pmcs[] and thread_struct->pmds[] OBSOLETE. The actual table is moved to pfm_context structure which saves space in thread_struct (in turn saving space in task_struct which frees up more space for kernel stacks). Signed-off-by: Stephane Eranian Signed-off-by: Anil S Keshavamurthy Signed-off-by: Tony Luck --- arch/ia64/kernel/perfmon.c | 113 +++++++++++++++++++------------------------ include/asm-ia64/processor.h | 12 +---- 2 files changed, 50 insertions(+), 75 deletions(-) (limited to 'include') diff --git a/arch/ia64/kernel/perfmon.c b/arch/ia64/kernel/perfmon.c index 84a7e52f56f6..45000d5d0cfa 100644 --- a/arch/ia64/kernel/perfmon.c +++ b/arch/ia64/kernel/perfmon.c @@ -62,6 +62,9 @@ #define PFM_INVALID_ACTIVATION (~0UL) +#define PFM_NUM_PMC_REGS 64 /* PMC save area for ctxsw */ +#define PFM_NUM_PMD_REGS 64 /* PMD save area for ctxsw */ + /* * depth of message queue */ @@ -296,14 +299,17 @@ typedef struct pfm_context { unsigned long ctx_reload_pmcs[4]; /* bitmask of force reload PMC on ctxsw in */ unsigned long ctx_used_monitors[4]; /* bitmask of monitor PMC being used */ - unsigned long ctx_pmcs[IA64_NUM_PMC_REGS]; /* saved copies of PMC values */ + unsigned long ctx_pmcs[PFM_NUM_PMC_REGS]; /* saved copies of PMC values */ unsigned int ctx_used_ibrs[1]; /* bitmask of used IBR (speedup ctxsw in) */ unsigned int ctx_used_dbrs[1]; /* bitmask of used DBR (speedup ctxsw in) */ unsigned long ctx_dbrs[IA64_NUM_DBG_REGS]; /* DBR values (cache) when not loaded */ unsigned long ctx_ibrs[IA64_NUM_DBG_REGS]; /* IBR values (cache) when not loaded */ - pfm_counter_t ctx_pmds[IA64_NUM_PMD_REGS]; /* software state for PMDS */ + pfm_counter_t ctx_pmds[PFM_NUM_PMD_REGS]; /* software state for PMDS */ + + unsigned long th_pmcs[PFM_NUM_PMC_REGS]; /* PMC thread save state */ + unsigned long th_pmds[PFM_NUM_PMD_REGS]; /* PMD thread save state */ u64 ctx_saved_psr_up; /* only contains psr.up value */ @@ -867,7 +873,6 @@ static void pfm_mask_monitoring(struct task_struct *task) { pfm_context_t *ctx = PFM_GET_CTX(task); - struct thread_struct *th = &task->thread; unsigned long mask, val, ovfl_mask; int i; @@ -888,7 +893,7 @@ pfm_mask_monitoring(struct task_struct *task) * So in both cases, the live register contains the owner's * state. We can ONLY touch the PMU registers and NOT the PSR. * - * As a consequence to this call, the thread->pmds[] array + * As a consequence to this call, the ctx->th_pmds[] array * contains stale information which must be ignored * when context is reloaded AND monitoring is active (see * pfm_restart). @@ -923,9 +928,9 @@ pfm_mask_monitoring(struct task_struct *task) mask = ctx->ctx_used_monitors[0] >> PMU_FIRST_COUNTER; for(i= PMU_FIRST_COUNTER; mask; i++, mask>>=1) { if ((mask & 0x1) == 0UL) continue; - ia64_set_pmc(i, th->pmcs[i] & ~0xfUL); - th->pmcs[i] &= ~0xfUL; - DPRINT_ovfl(("pmc[%d]=0x%lx\n", i, th->pmcs[i])); + ia64_set_pmc(i, ctx->th_pmcs[i] & ~0xfUL); + ctx->th_pmcs[i] &= ~0xfUL; + DPRINT_ovfl(("pmc[%d]=0x%lx\n", i, ctx->th_pmcs[i])); } /* * make all of this visible @@ -942,7 +947,6 @@ static void pfm_restore_monitoring(struct task_struct *task) { pfm_context_t *ctx = PFM_GET_CTX(task); - struct thread_struct *th = &task->thread; unsigned long mask, ovfl_mask; unsigned long psr, val; int i, is_system; @@ -1008,9 +1012,9 @@ pfm_restore_monitoring(struct task_struct *task) mask = ctx->ctx_used_monitors[0] >> PMU_FIRST_COUNTER; for(i= PMU_FIRST_COUNTER; mask; i++, mask>>=1) { if ((mask & 0x1) == 0UL) continue; - th->pmcs[i] = ctx->ctx_pmcs[i]; - ia64_set_pmc(i, th->pmcs[i]); - DPRINT(("[%d] pmc[%d]=0x%lx\n", task->pid, i, th->pmcs[i])); + ctx->th_pmcs[i] = ctx->ctx_pmcs[i]; + ia64_set_pmc(i, ctx->th_pmcs[i]); + DPRINT(("[%d] pmc[%d]=0x%lx\n", task->pid, i, ctx->th_pmcs[i])); } ia64_srlz_d(); @@ -1069,7 +1073,6 @@ pfm_restore_pmds(unsigned long *pmds, unsigned long mask) static inline void pfm_copy_pmds(struct task_struct *task, pfm_context_t *ctx) { - struct thread_struct *thread = &task->thread; unsigned long ovfl_val = pmu_conf->ovfl_val; unsigned long mask = ctx->ctx_all_pmds[0]; unsigned long val; @@ -1091,11 +1094,11 @@ pfm_copy_pmds(struct task_struct *task, pfm_context_t *ctx) ctx->ctx_pmds[i].val = val & ~ovfl_val; val &= ovfl_val; } - thread->pmds[i] = val; + ctx->th_pmds[i] = val; DPRINT(("pmd[%d]=0x%lx soft_val=0x%lx\n", i, - thread->pmds[i], + ctx->th_pmds[i], ctx->ctx_pmds[i].val)); } } @@ -1106,7 +1109,6 @@ pfm_copy_pmds(struct task_struct *task, pfm_context_t *ctx) static inline void pfm_copy_pmcs(struct task_struct *task, pfm_context_t *ctx) { - struct thread_struct *thread = &task->thread; unsigned long mask = ctx->ctx_all_pmcs[0]; int i; @@ -1114,8 +1116,8 @@ pfm_copy_pmcs(struct task_struct *task, pfm_context_t *ctx) for (i=0; mask; i++, mask>>=1) { /* masking 0 with ovfl_val yields 0 */ - thread->pmcs[i] = ctx->ctx_pmcs[i]; - DPRINT(("pmc[%d]=0x%lx\n", i, thread->pmcs[i])); + ctx->th_pmcs[i] = ctx->ctx_pmcs[i]; + DPRINT(("pmc[%d]=0x%lx\n", i, ctx->th_pmcs[i])); } } @@ -2859,7 +2861,6 @@ pfm_reset_regs(pfm_context_t *ctx, unsigned long *ovfl_regs, int is_long_reset) static int pfm_write_pmcs(pfm_context_t *ctx, void *arg, int count, struct pt_regs *regs) { - struct thread_struct *thread = NULL; struct task_struct *task; pfarg_reg_t *req = (pfarg_reg_t *)arg; unsigned long value, pmc_pm; @@ -2880,7 +2881,6 @@ pfm_write_pmcs(pfm_context_t *ctx, void *arg, int count, struct pt_regs *regs) if (state == PFM_CTX_ZOMBIE) return -EINVAL; if (is_loaded) { - thread = &task->thread; /* * In system wide and when the context is loaded, access can only happen * when the caller is running on the CPU being monitored by the session. @@ -3035,7 +3035,7 @@ pfm_write_pmcs(pfm_context_t *ctx, void *arg, int count, struct pt_regs *regs) * * The value in ctx_pmcs[] can only be changed in pfm_write_pmcs(). * - * The value in thread->pmcs[] may be modified on overflow, i.e., when + * The value in th_pmcs[] may be modified on overflow, i.e., when * monitoring needs to be stopped. */ if (is_monitor) CTX_USED_MONITOR(ctx, 1UL << cnum); @@ -3049,7 +3049,7 @@ pfm_write_pmcs(pfm_context_t *ctx, void *arg, int count, struct pt_regs *regs) /* * write thread state */ - if (is_system == 0) thread->pmcs[cnum] = value; + if (is_system == 0) ctx->th_pmcs[cnum] = value; /* * write hardware register if we can @@ -3101,7 +3101,6 @@ error: static int pfm_write_pmds(pfm_context_t *ctx, void *arg, int count, struct pt_regs *regs) { - struct thread_struct *thread = NULL; struct task_struct *task; pfarg_reg_t *req = (pfarg_reg_t *)arg; unsigned long value, hw_value, ovfl_mask; @@ -3125,7 +3124,6 @@ pfm_write_pmds(pfm_context_t *ctx, void *arg, int count, struct pt_regs *regs) * the owner of the local PMU. */ if (likely(is_loaded)) { - thread = &task->thread; /* * In system wide and when the context is loaded, access can only happen * when the caller is running on the CPU being monitored by the session. @@ -3233,7 +3231,7 @@ pfm_write_pmds(pfm_context_t *ctx, void *arg, int count, struct pt_regs *regs) /* * write thread state */ - if (is_system == 0) thread->pmds[cnum] = hw_value; + if (is_system == 0) ctx->th_pmds[cnum] = hw_value; /* * write hardware register if we can @@ -3299,7 +3297,6 @@ abort_mission: static int pfm_read_pmds(pfm_context_t *ctx, void *arg, int count, struct pt_regs *regs) { - struct thread_struct *thread = NULL; struct task_struct *task; unsigned long val = 0UL, lval, ovfl_mask, sval; pfarg_reg_t *req = (pfarg_reg_t *)arg; @@ -3323,7 +3320,6 @@ pfm_read_pmds(pfm_context_t *ctx, void *arg, int count, struct pt_regs *regs) if (state == PFM_CTX_ZOMBIE) return -EINVAL; if (likely(is_loaded)) { - thread = &task->thread; /* * In system wide and when the context is loaded, access can only happen * when the caller is running on the CPU being monitored by the session. @@ -3385,7 +3381,7 @@ pfm_read_pmds(pfm_context_t *ctx, void *arg, int count, struct pt_regs *regs) * if context is zombie, then task does not exist anymore. * In this case, we use the full value saved in the context (pfm_flush_regs()). */ - val = is_loaded ? thread->pmds[cnum] : 0UL; + val = is_loaded ? ctx->th_pmds[cnum] : 0UL; } rd_func = pmu_conf->pmd_desc[cnum].read_check; @@ -4354,8 +4350,8 @@ pfm_context_load(pfm_context_t *ctx, void *arg, int count, struct pt_regs *regs) pfm_copy_pmds(task, ctx); pfm_copy_pmcs(task, ctx); - pmcs_source = thread->pmcs; - pmds_source = thread->pmds; + pmcs_source = ctx->th_pmcs; + pmds_source = ctx->th_pmds; /* * always the case for system-wide @@ -5864,14 +5860,12 @@ void pfm_save_regs(struct task_struct *task) { pfm_context_t *ctx; - struct thread_struct *t; unsigned long flags; u64 psr; ctx = PFM_GET_CTX(task); if (ctx == NULL) return; - t = &task->thread; /* * we always come here with interrupts ALREADY disabled by @@ -5929,19 +5923,19 @@ pfm_save_regs(struct task_struct *task) * guarantee we will be schedule at that same * CPU again. */ - pfm_save_pmds(t->pmds, ctx->ctx_used_pmds[0]); + pfm_save_pmds(ctx->th_pmds, ctx->ctx_used_pmds[0]); /* * save pmc0 ia64_srlz_d() done in pfm_save_pmds() * we will need it on the restore path to check * for pending overflow. */ - t->pmcs[0] = ia64_get_pmc(0); + ctx->th_pmcs[0] = ia64_get_pmc(0); /* * unfreeze PMU if had pending overflows */ - if (t->pmcs[0] & ~0x1UL) pfm_unfreeze_pmu(); + if (ctx->th_pmcs[0] & ~0x1UL) pfm_unfreeze_pmu(); /* * finally, allow context access. @@ -5986,7 +5980,6 @@ static void pfm_lazy_save_regs (struct task_struct *task) { pfm_context_t *ctx; - struct thread_struct *t; unsigned long flags; { u64 psr = pfm_get_psr(); @@ -5994,7 +5987,6 @@ pfm_lazy_save_regs (struct task_struct *task) } ctx = PFM_GET_CTX(task); - t = &task->thread; /* * we need to mask PMU overflow here to @@ -6019,19 +6011,19 @@ pfm_lazy_save_regs (struct task_struct *task) /* * save all the pmds we use */ - pfm_save_pmds(t->pmds, ctx->ctx_used_pmds[0]); + pfm_save_pmds(ctx->th_pmds, ctx->ctx_used_pmds[0]); /* * save pmc0 ia64_srlz_d() done in pfm_save_pmds() * it is needed to check for pended overflow * on the restore path */ - t->pmcs[0] = ia64_get_pmc(0); + ctx->th_pmcs[0] = ia64_get_pmc(0); /* * unfreeze PMU if had pending overflows */ - if (t->pmcs[0] & ~0x1UL) pfm_unfreeze_pmu(); + if (ctx->th_pmcs[0] & ~0x1UL) pfm_unfreeze_pmu(); /* * now get can unmask PMU interrupts, they will @@ -6050,7 +6042,6 @@ void pfm_load_regs (struct task_struct *task) { pfm_context_t *ctx; - struct thread_struct *t; unsigned long pmc_mask = 0UL, pmd_mask = 0UL; unsigned long flags; u64 psr, psr_up; @@ -6061,11 +6052,10 @@ pfm_load_regs (struct task_struct *task) BUG_ON(GET_PMU_OWNER()); - t = &task->thread; /* * possible on unload */ - if (unlikely((t->flags & IA64_THREAD_PM_VALID) == 0)) return; + if (unlikely((task->thread.flags & IA64_THREAD_PM_VALID) == 0)) return; /* * we always come here with interrupts ALREADY disabled by @@ -6147,21 +6137,21 @@ pfm_load_regs (struct task_struct *task) * * XXX: optimize here */ - if (pmd_mask) pfm_restore_pmds(t->pmds, pmd_mask); - if (pmc_mask) pfm_restore_pmcs(t->pmcs, pmc_mask); + if (pmd_mask) pfm_restore_pmds(ctx->th_pmds, pmd_mask); + if (pmc_mask) pfm_restore_pmcs(ctx->th_pmcs, pmc_mask); /* * check for pending overflow at the time the state * was saved. */ - if (unlikely(PMC0_HAS_OVFL(t->pmcs[0]))) { + if (unlikely(PMC0_HAS_OVFL(ctx->th_pmcs[0]))) { /* * reload pmc0 with the overflow information * On McKinley PMU, this will trigger a PMU interrupt */ - ia64_set_pmc(0, t->pmcs[0]); + ia64_set_pmc(0, ctx->th_pmcs[0]); ia64_srlz_d(); - t->pmcs[0] = 0UL; + ctx->th_pmcs[0] = 0UL; /* * will replay the PMU interrupt @@ -6214,7 +6204,6 @@ pfm_load_regs (struct task_struct *task) void pfm_load_regs (struct task_struct *task) { - struct thread_struct *t; pfm_context_t *ctx; struct task_struct *owner; unsigned long pmd_mask, pmc_mask; @@ -6223,7 +6212,6 @@ pfm_load_regs (struct task_struct *task) owner = GET_PMU_OWNER(); ctx = PFM_GET_CTX(task); - t = &task->thread; psr = pfm_get_psr(); BUG_ON(psr & (IA64_PSR_UP|IA64_PSR_PP)); @@ -6286,22 +6274,22 @@ pfm_load_regs (struct task_struct *task) */ pmc_mask = ctx->ctx_all_pmcs[0]; - pfm_restore_pmds(t->pmds, pmd_mask); - pfm_restore_pmcs(t->pmcs, pmc_mask); + pfm_restore_pmds(ctx->th_pmds, pmd_mask); + pfm_restore_pmcs(ctx->th_pmcs, pmc_mask); /* * check for pending overflow at the time the state * was saved. */ - if (unlikely(PMC0_HAS_OVFL(t->pmcs[0]))) { + if (unlikely(PMC0_HAS_OVFL(ctx->th_pmcs[0]))) { /* * reload pmc0 with the overflow information * On McKinley PMU, this will trigger a PMU interrupt */ - ia64_set_pmc(0, t->pmcs[0]); + ia64_set_pmc(0, ctx->th_pmcs[0]); ia64_srlz_d(); - t->pmcs[0] = 0UL; + ctx->th_pmcs[0] = 0UL; /* * will replay the PMU interrupt @@ -6376,11 +6364,11 @@ pfm_flush_pmds(struct task_struct *task, pfm_context_t *ctx) */ pfm_unfreeze_pmu(); } else { - pmc0 = task->thread.pmcs[0]; + pmc0 = ctx->th_pmcs[0]; /* * clear whatever overflow status bits there were */ - task->thread.pmcs[0] = 0; + ctx->th_pmcs[0] = 0; } ovfl_val = pmu_conf->ovfl_val; /* @@ -6401,7 +6389,7 @@ pfm_flush_pmds(struct task_struct *task, pfm_context_t *ctx) /* * can access PMU always true in system wide mode */ - val = pmd_val = can_access_pmu ? ia64_get_pmd(i) : task->thread.pmds[i]; + val = pmd_val = can_access_pmu ? ia64_get_pmd(i) : ctx->th_pmds[i]; if (PMD_IS_COUNTING(i)) { DPRINT(("[%d] pmd[%d] ctx_pmd=0x%lx hw_pmd=0x%lx\n", @@ -6433,7 +6421,7 @@ pfm_flush_pmds(struct task_struct *task, pfm_context_t *ctx) DPRINT(("[%d] ctx_pmd[%d]=0x%lx pmd_val=0x%lx\n", task->pid, i, val, pmd_val)); - if (is_self) task->thread.pmds[i] = pmd_val; + if (is_self) ctx->th_pmds[i] = pmd_val; ctx->ctx_pmds[i].val = val; } @@ -6677,7 +6665,7 @@ pfm_init(void) ffz(pmu_conf->ovfl_val)); /* sanity check */ - if (pmu_conf->num_pmds >= IA64_NUM_PMD_REGS || pmu_conf->num_pmcs >= IA64_NUM_PMC_REGS) { + if (pmu_conf->num_pmds >= PFM_NUM_PMD_REGS || pmu_conf->num_pmcs >= PFM_NUM_PMC_REGS) { printk(KERN_ERR "perfmon: not enough pmc/pmd, perfmon disabled\n"); pmu_conf = NULL; return -1; @@ -6752,7 +6740,6 @@ void dump_pmu_state(const char *from) { struct task_struct *task; - struct thread_struct *t; struct pt_regs *regs; pfm_context_t *ctx; unsigned long psr, dcr, info, flags; @@ -6797,16 +6784,14 @@ dump_pmu_state(const char *from) ia64_psr(regs)->up = 0; ia64_psr(regs)->pp = 0; - t = ¤t->thread; - for (i=1; PMC_IS_LAST(i) == 0; i++) { if (PMC_IS_IMPL(i) == 0) continue; - printk("->CPU%d pmc[%d]=0x%lx thread_pmc[%d]=0x%lx\n", this_cpu, i, ia64_get_pmc(i), i, t->pmcs[i]); + printk("->CPU%d pmc[%d]=0x%lx thread_pmc[%d]=0x%lx\n", this_cpu, i, ia64_get_pmc(i), i, ctx->th_pmcs[i]); } for (i=1; PMD_IS_LAST(i) == 0; i++) { if (PMD_IS_IMPL(i) == 0) continue; - printk("->CPU%d pmd[%d]=0x%lx thread_pmd[%d]=0x%lx\n", this_cpu, i, ia64_get_pmd(i), i, t->pmds[i]); + printk("->CPU%d pmd[%d]=0x%lx thread_pmd[%d]=0x%lx\n", this_cpu, i, ia64_get_pmd(i), i, ctx->th_pmds[i]); } if (ctx) { diff --git a/include/asm-ia64/processor.h b/include/asm-ia64/processor.h index ead68f8eb883..5830d36fd8e6 100644 --- a/include/asm-ia64/processor.h +++ b/include/asm-ia64/processor.h @@ -20,12 +20,6 @@ #include #define IA64_NUM_DBG_REGS 8 -/* - * Limits for PMC and PMD are set to less than maximum architected values - * but should be sufficient for a while - */ -#define IA64_NUM_PMC_REGS 64 -#define IA64_NUM_PMD_REGS 64 #define DEFAULT_MAP_BASE __IA64_UL_CONST(0x2000000000000000) #define DEFAULT_TASK_SIZE __IA64_UL_CONST(0xa000000000000000) @@ -263,13 +257,9 @@ struct thread_struct { # define INIT_THREAD_IA32 #endif /* CONFIG_IA32_SUPPORT */ #ifdef CONFIG_PERFMON - __u64 pmcs[IA64_NUM_PMC_REGS]; - __u64 pmds[IA64_NUM_PMD_REGS]; void *pfm_context; /* pointer to detailed PMU context */ unsigned long pfm_needs_checking; /* when >0, pending perfmon work on kernel exit */ -# define INIT_THREAD_PM .pmcs = {0UL, }, \ - .pmds = {0UL, }, \ - .pfm_context = NULL, \ +# define INIT_THREAD_PM .pfm_context = NULL, \ .pfm_needs_checking = 0UL, #else # define INIT_THREAD_PM -- cgit v1.2.3 From a192dc16000241dc02990a36b6830839b73c44de Mon Sep 17 00:00:00 2001 From: Jakub Jelinek Date: Tue, 26 Sep 2006 14:00:56 -0700 Subject: [IA64] Implement futex primitives Implement futex_atomic_op_inuser() and futex_atomic_cmpxchg_inatomic() on IA64 in order to fully support all futex functionality. Signed-off-by: Jakub Jelinek Signed-off-by: David Woodhouse Signed-off-by: Tony Luck --- include/asm-ia64/futex.h | 122 ++++++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 120 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/asm-ia64/futex.h b/include/asm-ia64/futex.h index 6a332a9f099c..07d77f3a8cbe 100644 --- a/include/asm-ia64/futex.h +++ b/include/asm-ia64/futex.h @@ -1,6 +1,124 @@ #ifndef _ASM_FUTEX_H #define _ASM_FUTEX_H -#include +#include +#include +#include +#include -#endif +#define __futex_atomic_op1(insn, ret, oldval, uaddr, oparg) \ +do { \ + register unsigned long r8 __asm ("r8") = 0; \ + __asm__ __volatile__( \ + " mf;; \n" \ + "[1:] " insn ";; \n" \ + " .xdata4 \"__ex_table\", 1b-., 2f-. \n" \ + "[2:]" \ + : "+r" (r8), "=r" (oldval) \ + : "r" (uaddr), "r" (oparg) \ + : "memory"); \ + ret = r8; \ +} while (0) + +#define __futex_atomic_op2(insn, ret, oldval, uaddr, oparg) \ +do { \ + register unsigned long r8 __asm ("r8") = 0; \ + int val, newval; \ + do { \ + __asm__ __volatile__( \ + " mf;; \n" \ + "[1:] ld4 %3=[%4];; \n" \ + " mov %2=%3 \n" \ + insn ";; \n" \ + " mov ar.ccv=%2;; \n" \ + "[2:] cmpxchg4.acq %1=[%4],%3,ar.ccv;; \n" \ + " .xdata4 \"__ex_table\", 1b-., 3f-.\n" \ + " .xdata4 \"__ex_table\", 2b-., 3f-.\n" \ + "[3:]" \ + : "+r" (r8), "=r" (val), "=&r" (oldval), \ + "=&r" (newval) \ + : "r" (uaddr), "r" (oparg) \ + : "memory"); \ + if (unlikely (r8)) \ + break; \ + } while (unlikely (val != oldval)); \ + ret = r8; \ +} while (0) + +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; + if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28)) + oparg = 1 << oparg; + + if (! access_ok (VERIFY_WRITE, uaddr, sizeof(int))) + return -EFAULT; + + inc_preempt_count(); + + switch (op) { + case FUTEX_OP_SET: + __futex_atomic_op1("xchg4 %1=[%2],%3", ret, oldval, uaddr, + oparg); + break; + case FUTEX_OP_ADD: + __futex_atomic_op2("add %3=%3,%5", ret, oldval, uaddr, oparg); + break; + case FUTEX_OP_OR: + __futex_atomic_op2("or %3=%3,%5", ret, oldval, uaddr, oparg); + break; + case FUTEX_OP_ANDN: + __futex_atomic_op2("and %3=%3,%5", ret, oldval, uaddr, + ~oparg); + break; + case FUTEX_OP_XOR: + __futex_atomic_op2("xor %3=%3,%5", ret, oldval, uaddr, oparg); + break; + default: + ret = -ENOSYS; + } + + dec_preempt_count(); + + 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) +{ + if (!access_ok(VERIFY_WRITE, uaddr, sizeof(int))) + return -EFAULT; + + { + register unsigned long r8 __asm ("r8"); + __asm__ __volatile__( + " mf;; \n" + " mov ar.ccv=%3;; \n" + "[1:] cmpxchg4.acq %0=[%1],%2,ar.ccv \n" + " .xdata4 \"__ex_table\", 1b-., 2f-. \n" + "[2:]" + : "=r" (r8) + : "r" (uaddr), "r" (newval), + "rO" ((long) (unsigned) oldval) + : "memory"); + return r8; + } +} + +#endif /* _ASM_FUTEX_H */ -- cgit v1.2.3 From 5c55cd63a77a85f603c98c2171a8054ca34b6a9f Mon Sep 17 00:00:00 2001 From: Tony Luck Date: Tue, 26 Sep 2006 14:04:42 -0700 Subject: Revert "[IA64] Unwire set/get_robust_list" This reverts commit 2636255488484e04d6d54303d2b0ec30f7ef7e02. Jakub Jelinek provided the missing futex_atomic_cmpxchg_inatomic() function, so now it should be safe to re-enable these syscalls. Signed-off-by: Tony Luck --- arch/ia64/kernel/entry.S | 4 ++-- include/asm-ia64/unistd.h | 3 ++- 2 files changed, 4 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/arch/ia64/kernel/entry.S b/arch/ia64/kernel/entry.S index fef06571be99..12701cf32d99 100644 --- a/arch/ia64/kernel/entry.S +++ b/arch/ia64/kernel/entry.S @@ -1605,8 +1605,8 @@ sys_call_table: data8 sys_ni_syscall // 1295 reserved for ppoll data8 sys_unshare data8 sys_splice - data8 sys_ni_syscall // reserved for set_robust_list - data8 sys_ni_syscall // reserved for get_robust_list + data8 sys_set_robust_list + data8 sys_get_robust_list data8 sys_sync_file_range // 1300 data8 sys_tee data8 sys_vmsplice diff --git a/include/asm-ia64/unistd.h b/include/asm-ia64/unistd.h index f581662c5ab8..bb0eb727dcd0 100644 --- a/include/asm-ia64/unistd.h +++ b/include/asm-ia64/unistd.h @@ -286,7 +286,8 @@ /* 1294, 1295 reserved for pselect/ppoll */ #define __NR_unshare 1296 #define __NR_splice 1297 -/* 1298, 1299 reserved for set_robust_list/get_robust_list */ +#define __NR_set_robust_list 1298 +#define __NR_get_robust_list 1299 #define __NR_sync_file_range 1300 #define __NR_tee 1301 #define __NR_vmsplice 1302 -- cgit v1.2.3 From f5a3f3dc189485d607fbd42678cc23958acc0a6e Mon Sep 17 00:00:00 2001 From: Zou Nan hai Date: Thu, 14 Sep 2006 08:25:15 +0800 Subject: [IA64] Make gp value point to Region 5 in mca handler MCA dispatch code take physical address of GP passed from SAL, then call DATA_PA_TO_VA twice on GP before call into C code. The first time is in ia64_set_kernel_register, the second time is in VIRTUAL_MODE_ENTER. The gp is changed to a virtual address in region 7 because DATA_PA_TO_VA is implemented by dep instruction. However when notify blocks were called from MCA handler code, because notify blocks are supported by callback function pointers, gp value value was switched to region 5 again. The patch set gp register to kernel gp of region 5 at entry of MCA dispatch. Signed-off-by: Zou Nan hai Signed-off-by: Tony Luck --- arch/ia64/kernel/mca_asm.S | 5 ----- include/asm-ia64/mca_asm.h | 2 +- 2 files changed, 1 insertion(+), 6 deletions(-) (limited to 'include') diff --git a/arch/ia64/kernel/mca_asm.S b/arch/ia64/kernel/mca_asm.S index 96047491d1b9..ee3ff76c8a35 100644 --- a/arch/ia64/kernel/mca_asm.S +++ b/arch/ia64/kernel/mca_asm.S @@ -1025,18 +1025,13 @@ ia64_old_stack: ia64_set_kernel_registers: add temp3=MCA_SP_OFFSET, r3 - add temp4=MCA_SOS_OFFSET+SOS(OS_GP), r3 mov b0=r2 // save return address GET_IA64_MCA_DATA(temp1) ;; - add temp4=temp4, temp1 // &struct ia64_sal_os_state.os_gp add r12=temp1, temp3 // kernel stack pointer on MCA/INIT stack add r13=temp1, r3 // set current to start of MCA/INIT stack add r20=temp1, r3 // physical start of MCA/INIT stack ;; - ld8 r1=[temp4] // OS GP from SAL OS state - ;; - DATA_PA_TO_VA(r1,temp1) DATA_PA_TO_VA(r12,temp2) DATA_PA_TO_VA(r13,temp3) ;; diff --git a/include/asm-ia64/mca_asm.h b/include/asm-ia64/mca_asm.h index 27c9203d8ce3..76203f9a8718 100644 --- a/include/asm-ia64/mca_asm.h +++ b/include/asm-ia64/mca_asm.h @@ -197,9 +197,9 @@ movl temp2 = start_addr; \ ;; \ mov cr.iip = temp2; \ + movl gp = __gp \ ;; \ DATA_PA_TO_VA(sp, temp1); \ - DATA_PA_TO_VA(gp, temp2); \ srlz.i; \ ;; \ nop 1; \ -- cgit v1.2.3 From b29e7132b5a9f2496beed37beef7ba4d010afb2c Mon Sep 17 00:00:00 2001 From: Russ Anderson Date: Tue, 26 Sep 2006 14:47:48 -0500 Subject: [IA64] PAL calls need physical mode, stacked PAL_CACHE_READ and PAL_CACHE_WRITE need to be called in physical mode with stacked registers. Signed-off-by: Russ Anderson (rja@sgi.com) Signed-off-by: Tony Luck --- include/asm-ia64/pal.h | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/asm-ia64/pal.h b/include/asm-ia64/pal.h index d1587e4f5759..2c8fd92d0ece 100644 --- a/include/asm-ia64/pal.h +++ b/include/asm-ia64/pal.h @@ -964,7 +964,8 @@ static inline s64 ia64_pal_cache_read (pal_cache_line_id_u_t line_id, u64 physical_addr) { struct ia64_pal_retval iprv; - PAL_CALL(iprv, PAL_CACHE_READ, line_id.pclid_data, physical_addr, 0); + PAL_CALL_PHYS_STK(iprv, PAL_CACHE_READ, line_id.pclid_data, + physical_addr, 0); return iprv.status; } @@ -986,7 +987,8 @@ static inline s64 ia64_pal_cache_write (pal_cache_line_id_u_t line_id, u64 physical_addr, u64 data) { struct ia64_pal_retval iprv; - PAL_CALL(iprv, PAL_CACHE_WRITE, line_id.pclid_data, physical_addr, data); + PAL_CALL_PHYS_STK(iprv, PAL_CACHE_WRITE, line_id.pclid_data, + physical_addr, data); return iprv.status; } -- cgit v1.2.3 From 51c3711704b66986373408cbc0540abea43d2380 Mon Sep 17 00:00:00 2001 From: Jean Delvare Date: Sun, 13 Aug 2006 23:33:16 +0200 Subject: i2c-algo-sibyte: Merge into i2c-sibyte i2c-algo-sibyte: Merge into i2c-sibyte Merge i2c-algo-sibyte into i2c-sibyte, as this is a complete, hardware-dependent SMBus implementation and not a reusable algorithm. Perform some basic coding style cleanups while we're here (mainly space-based indentation replaced by tabulations.) Signed-off-by: Jean Delvare Cc: Ralf Baechle Signed-off-by: Greg Kroah-Hartman --- drivers/i2c/algos/Kconfig | 6 -- drivers/i2c/algos/Makefile | 1 - drivers/i2c/algos/i2c-algo-sibyte.c | 186 ------------------------------------ drivers/i2c/busses/i2c-sibyte.c | 158 +++++++++++++++++++++++++++++- include/linux/i2c-algo-sibyte.h | 33 ------- 5 files changed, 155 insertions(+), 229 deletions(-) delete mode 100644 drivers/i2c/algos/i2c-algo-sibyte.c delete mode 100644 include/linux/i2c-algo-sibyte.h (limited to 'include') diff --git a/drivers/i2c/algos/Kconfig b/drivers/i2c/algos/Kconfig index 30408015d231..c034820615bb 100644 --- a/drivers/i2c/algos/Kconfig +++ b/drivers/i2c/algos/Kconfig @@ -53,12 +53,6 @@ config I2C_ALGO8XX tristate "MPC8xx CPM I2C interface" depends on 8xx && I2C -config I2C_ALGO_SIBYTE - tristate "SiByte SMBus interface" - depends on SIBYTE_SB1xxx_SOC && I2C - help - Supports the SiByte SOC on-chip I2C interfaces (2 channels). - config I2C_ALGO_SGI tristate "I2C SGI interfaces" depends on I2C && (SGI_IP22 || SGI_IP32 || X86_VISWS) diff --git a/drivers/i2c/algos/Makefile b/drivers/i2c/algos/Makefile index 867fe1f67401..208be04a3dbd 100644 --- a/drivers/i2c/algos/Makefile +++ b/drivers/i2c/algos/Makefile @@ -6,7 +6,6 @@ obj-$(CONFIG_I2C_ALGOBIT) += i2c-algo-bit.o obj-$(CONFIG_I2C_ALGOPCF) += i2c-algo-pcf.o obj-$(CONFIG_I2C_ALGOPCA) += i2c-algo-pca.o obj-$(CONFIG_I2C_ALGOITE) += i2c-algo-ite.o -obj-$(CONFIG_I2C_ALGO_SIBYTE) += i2c-algo-sibyte.o obj-$(CONFIG_I2C_ALGO_SGI) += i2c-algo-sgi.o ifeq ($(CONFIG_I2C_DEBUG_ALGO),y) diff --git a/drivers/i2c/algos/i2c-algo-sibyte.c b/drivers/i2c/algos/i2c-algo-sibyte.c deleted file mode 100644 index 16d666fa16f3..000000000000 --- a/drivers/i2c/algos/i2c-algo-sibyte.c +++ /dev/null @@ -1,186 +0,0 @@ -/* ------------------------------------------------------------------------- */ -/* i2c-algo-sibyte.c i2c driver algorithms for bit-shift adapters */ -/* ------------------------------------------------------------------------- */ -/* Copyright (C) 2001,2002,2003 Broadcom Corporation - Copyright (C) 1995-2000 Simon G. Vogl - - 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., 675 Mass Ave, Cambridge, MA 02139, USA. */ -/* ------------------------------------------------------------------------- */ - -/* With some changes from Kyösti Mälkki and even - Frodo Looijaard . */ - -/* Ported for SiByte SOCs by Broadcom Corporation. */ - -#include -#include -#include - -#include -#include -#include - -#include -#include - -/* ----- global defines ----------------------------------------------- */ -#define SMB_CSR(a,r) ((long)(a->reg_base + r)) - -/* ----- global variables --------------------------------------------- */ - -/* module parameters: - */ -static int bit_scan; /* have a look at what's hanging 'round */ - - -static int smbus_xfer(struct i2c_adapter *i2c_adap, u16 addr, - unsigned short flags, char read_write, - u8 command, int size, union i2c_smbus_data * data) -{ - struct i2c_algo_sibyte_data *adap = i2c_adap->algo_data; - int data_bytes = 0; - int error; - - while (csr_in32(SMB_CSR(adap, R_SMB_STATUS)) & M_SMB_BUSY) - ; - - switch (size) { - case I2C_SMBUS_QUICK: - csr_out32((V_SMB_ADDR(addr) | (read_write == I2C_SMBUS_READ ? M_SMB_QDATA : 0) | - V_SMB_TT_QUICKCMD), SMB_CSR(adap, R_SMB_START)); - break; - case I2C_SMBUS_BYTE: - if (read_write == I2C_SMBUS_READ) { - csr_out32((V_SMB_ADDR(addr) | V_SMB_TT_RD1BYTE), - SMB_CSR(adap, R_SMB_START)); - data_bytes = 1; - } else { - csr_out32(V_SMB_CMD(command), SMB_CSR(adap, R_SMB_CMD)); - csr_out32((V_SMB_ADDR(addr) | V_SMB_TT_WR1BYTE), - SMB_CSR(adap, R_SMB_START)); - } - break; - case I2C_SMBUS_BYTE_DATA: - csr_out32(V_SMB_CMD(command), SMB_CSR(adap, R_SMB_CMD)); - if (read_write == I2C_SMBUS_READ) { - csr_out32((V_SMB_ADDR(addr) | V_SMB_TT_CMD_RD1BYTE), - SMB_CSR(adap, R_SMB_START)); - data_bytes = 1; - } else { - csr_out32(V_SMB_LB(data->byte), SMB_CSR(adap, R_SMB_DATA)); - csr_out32((V_SMB_ADDR(addr) | V_SMB_TT_WR2BYTE), - SMB_CSR(adap, R_SMB_START)); - } - break; - case I2C_SMBUS_WORD_DATA: - csr_out32(V_SMB_CMD(command), SMB_CSR(adap, R_SMB_CMD)); - if (read_write == I2C_SMBUS_READ) { - csr_out32((V_SMB_ADDR(addr) | V_SMB_TT_CMD_RD2BYTE), - SMB_CSR(adap, R_SMB_START)); - data_bytes = 2; - } else { - csr_out32(V_SMB_LB(data->word & 0xff), SMB_CSR(adap, R_SMB_DATA)); - csr_out32(V_SMB_MB(data->word >> 8), SMB_CSR(adap, R_SMB_DATA)); - csr_out32((V_SMB_ADDR(addr) | V_SMB_TT_WR2BYTE), - SMB_CSR(adap, R_SMB_START)); - } - break; - default: - return -1; /* XXXKW better error code? */ - } - - while (csr_in32(SMB_CSR(adap, R_SMB_STATUS)) & M_SMB_BUSY) - ; - - error = csr_in32(SMB_CSR(adap, R_SMB_STATUS)); - if (error & M_SMB_ERROR) { - /* Clear error bit by writing a 1 */ - csr_out32(M_SMB_ERROR, SMB_CSR(adap, R_SMB_STATUS)); - return -1; /* XXXKW better error code? */ - } - - if (data_bytes == 1) - data->byte = csr_in32(SMB_CSR(adap, R_SMB_DATA)) & 0xff; - if (data_bytes == 2) - data->word = csr_in32(SMB_CSR(adap, R_SMB_DATA)) & 0xffff; - - return 0; -} - -static u32 bit_func(struct i2c_adapter *adap) -{ - return (I2C_FUNC_SMBUS_QUICK | I2C_FUNC_SMBUS_BYTE | - I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA); -} - - -/* -----exported algorithm data: ------------------------------------- */ - -static struct i2c_algorithm i2c_sibyte_algo = { - .smbus_xfer = smbus_xfer, - .functionality = bit_func, -}; - -/* - * registering functions to load algorithms at runtime - */ -int i2c_sibyte_add_bus(struct i2c_adapter *i2c_adap, int speed) -{ - int i; - struct i2c_algo_sibyte_data *adap = i2c_adap->algo_data; - - /* register new adapter to i2c module... */ - i2c_adap->algo = &i2c_sibyte_algo; - - /* Set the frequency to 100 kHz */ - csr_out32(speed, SMB_CSR(adap,R_SMB_FREQ)); - csr_out32(0, SMB_CSR(adap,R_SMB_CONTROL)); - - /* scan bus */ - if (bit_scan) { - union i2c_smbus_data data; - int rc; - printk(KERN_INFO " i2c-algo-sibyte.o: scanning bus %s.\n", - i2c_adap->name); - for (i = 0x00; i < 0x7f; i++) { - /* XXXKW is this a realistic probe? */ - rc = smbus_xfer(i2c_adap, i, 0, I2C_SMBUS_READ, 0, - I2C_SMBUS_BYTE_DATA, &data); - if (!rc) { - printk("(%02x)",i); - } else - printk("."); - } - printk("\n"); - } - - return i2c_add_adapter(i2c_adap); -} - - -int i2c_sibyte_del_bus(struct i2c_adapter *adap) -{ - return i2c_del_adapter(adap); -} - - -EXPORT_SYMBOL(i2c_sibyte_add_bus); -EXPORT_SYMBOL(i2c_sibyte_del_bus); - -MODULE_AUTHOR("Kip Walker, Broadcom Corp."); -MODULE_DESCRIPTION("SiByte I2C-Bus algorithm"); -module_param(bit_scan, int, 0); -MODULE_PARM_DESC(bit_scan, "Scan for active chips on the bus"); -MODULE_LICENSE("GPL"); diff --git a/drivers/i2c/busses/i2c-sibyte.c b/drivers/i2c/busses/i2c-sibyte.c index fa503ed9f86d..f516eb7a23f7 100644 --- a/drivers/i2c/busses/i2c-sibyte.c +++ b/drivers/i2c/busses/i2c-sibyte.c @@ -1,6 +1,7 @@ /* * Copyright (C) 2004 Steven J. Hill * Copyright (C) 2001,2002,2003 Broadcom Corporation + * Copyright (C) 1995-2000 Simon G. Vogl * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License @@ -17,11 +18,162 @@ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ +#include #include -#include +#include +#include +#include #include #include + +struct i2c_algo_sibyte_data { + void *data; /* private data */ + int bus; /* which bus */ + void *reg_base; /* CSR base */ +}; + +/* ----- global defines ----------------------------------------------- */ +#define SMB_CSR(a,r) ((long)(a->reg_base + r)) + +/* ----- global variables --------------------------------------------- */ + +/* module parameters: + */ +static int bit_scan; /* have a look at what's hanging 'round */ +module_param(bit_scan, int, 0); +MODULE_PARM_DESC(bit_scan, "Scan for active chips on the bus"); + + +static int smbus_xfer(struct i2c_adapter *i2c_adap, u16 addr, + unsigned short flags, char read_write, + u8 command, int size, union i2c_smbus_data * data) +{ + struct i2c_algo_sibyte_data *adap = i2c_adap->algo_data; + int data_bytes = 0; + int error; + + while (csr_in32(SMB_CSR(adap, R_SMB_STATUS)) & M_SMB_BUSY) + ; + + switch (size) { + case I2C_SMBUS_QUICK: + csr_out32((V_SMB_ADDR(addr) | + (read_write == I2C_SMBUS_READ ? M_SMB_QDATA : 0) | + V_SMB_TT_QUICKCMD), SMB_CSR(adap, R_SMB_START)); + break; + case I2C_SMBUS_BYTE: + if (read_write == I2C_SMBUS_READ) { + csr_out32((V_SMB_ADDR(addr) | V_SMB_TT_RD1BYTE), + SMB_CSR(adap, R_SMB_START)); + data_bytes = 1; + } else { + csr_out32(V_SMB_CMD(command), SMB_CSR(adap, R_SMB_CMD)); + csr_out32((V_SMB_ADDR(addr) | V_SMB_TT_WR1BYTE), + SMB_CSR(adap, R_SMB_START)); + } + break; + case I2C_SMBUS_BYTE_DATA: + csr_out32(V_SMB_CMD(command), SMB_CSR(adap, R_SMB_CMD)); + if (read_write == I2C_SMBUS_READ) { + csr_out32((V_SMB_ADDR(addr) | V_SMB_TT_CMD_RD1BYTE), + SMB_CSR(adap, R_SMB_START)); + data_bytes = 1; + } else { + csr_out32(V_SMB_LB(data->byte), + SMB_CSR(adap, R_SMB_DATA)); + csr_out32((V_SMB_ADDR(addr) | V_SMB_TT_WR2BYTE), + SMB_CSR(adap, R_SMB_START)); + } + break; + case I2C_SMBUS_WORD_DATA: + csr_out32(V_SMB_CMD(command), SMB_CSR(adap, R_SMB_CMD)); + if (read_write == I2C_SMBUS_READ) { + csr_out32((V_SMB_ADDR(addr) | V_SMB_TT_CMD_RD2BYTE), + SMB_CSR(adap, R_SMB_START)); + data_bytes = 2; + } else { + csr_out32(V_SMB_LB(data->word & 0xff), + SMB_CSR(adap, R_SMB_DATA)); + csr_out32(V_SMB_MB(data->word >> 8), + SMB_CSR(adap, R_SMB_DATA)); + csr_out32((V_SMB_ADDR(addr) | V_SMB_TT_WR2BYTE), + SMB_CSR(adap, R_SMB_START)); + } + break; + default: + return -1; /* XXXKW better error code? */ + } + + while (csr_in32(SMB_CSR(adap, R_SMB_STATUS)) & M_SMB_BUSY) + ; + + error = csr_in32(SMB_CSR(adap, R_SMB_STATUS)); + if (error & M_SMB_ERROR) { + /* Clear error bit by writing a 1 */ + csr_out32(M_SMB_ERROR, SMB_CSR(adap, R_SMB_STATUS)); + return -1; /* XXXKW better error code? */ + } + + if (data_bytes == 1) + data->byte = csr_in32(SMB_CSR(adap, R_SMB_DATA)) & 0xff; + if (data_bytes == 2) + data->word = csr_in32(SMB_CSR(adap, R_SMB_DATA)) & 0xffff; + + return 0; +} + +static u32 bit_func(struct i2c_adapter *adap) +{ + return (I2C_FUNC_SMBUS_QUICK | I2C_FUNC_SMBUS_BYTE | + I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA); +} + + +/* -----exported algorithm data: ------------------------------------- */ + +static struct i2c_algorithm i2c_sibyte_algo = { + .smbus_xfer = smbus_xfer, + .functionality = bit_func, +}; + +/* + * registering functions to load algorithms at runtime + */ +int i2c_sibyte_add_bus(struct i2c_adapter *i2c_adap, int speed) +{ + int i; + struct i2c_algo_sibyte_data *adap = i2c_adap->algo_data; + + /* register new adapter to i2c module... */ + i2c_adap->algo = &i2c_sibyte_algo; + + /* Set the frequency to 100 kHz */ + csr_out32(speed, SMB_CSR(adap,R_SMB_FREQ)); + csr_out32(0, SMB_CSR(adap,R_SMB_CONTROL)); + + /* scan bus */ + if (bit_scan) { + union i2c_smbus_data data; + int rc; + printk(KERN_INFO " i2c-algo-sibyte.o: scanning bus %s.\n", + i2c_adap->name); + for (i = 0x00; i < 0x7f; i++) { + /* XXXKW is this a realistic probe? */ + rc = smbus_xfer(i2c_adap, i, 0, I2C_SMBUS_READ, 0, + I2C_SMBUS_BYTE_DATA, &data); + if (!rc) { + printk("(%02x)",i); + } else + printk("."); + } + printk("\n"); + } + + return i2c_add_adapter(i2c_adap); +} + + static struct i2c_algo_sibyte_data sibyte_board_data[2] = { { NULL, 0, (void *) (CKSEG1+A_SMB_BASE(0)) }, { NULL, 1, (void *) (CKSEG1+A_SMB_BASE(1)) } @@ -58,8 +210,8 @@ static int __init i2c_sibyte_init(void) static void __exit i2c_sibyte_exit(void) { - i2c_sibyte_del_bus(&sibyte_board_adapter[0]); - i2c_sibyte_del_bus(&sibyte_board_adapter[1]); + i2c_del_bus(&sibyte_board_adapter[0]); + i2c_del_bus(&sibyte_board_adapter[1]); } module_init(i2c_sibyte_init); diff --git a/include/linux/i2c-algo-sibyte.h b/include/linux/i2c-algo-sibyte.h deleted file mode 100644 index 03914ded8614..000000000000 --- a/include/linux/i2c-algo-sibyte.h +++ /dev/null @@ -1,33 +0,0 @@ -/* - * Copyright (C) 2001,2002,2003 Broadcom Corporation - * - * 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 I2C_ALGO_SIBYTE_H -#define I2C_ALGO_SIBYTE_H 1 - -#include - -struct i2c_algo_sibyte_data { - void *data; /* private data */ - int bus; /* which bus */ - void *reg_base; /* CSR base */ -}; - -int i2c_sibyte_add_bus(struct i2c_adapter *, int speed); -int i2c_sibyte_del_bus(struct i2c_adapter *); - -#endif /* I2C_ALGO_SIBYTE_H */ -- cgit v1.2.3 From a0d9c63d3640bd4fc90a408e8334754ef44bcf48 Mon Sep 17 00:00:00 2001 From: Jean Delvare Date: Sun, 27 Aug 2006 11:46:49 +0200 Subject: i2c-algo-bit: Discard the mdelay data struct member i2c-algo-bit: Discard the mdelay data struct member The i2c_algo_bit_data structure has an mdelay member, which is not used by the algorithm code (the code has always been ifdef'd out.) Let's discard it to save some code and memory. Signed-off-by: Jean Delvare Acked-by: Mauro Carvalho Chehab Cc: Adrian Bunk Signed-off-by: Greg Kroah-Hartman --- drivers/acorn/char/i2c.c | 1 - drivers/i2c/algos/i2c-algo-bit.c | 4 ---- drivers/i2c/busses/i2c-hydra.c | 1 - drivers/i2c/busses/i2c-i810.c | 2 -- drivers/i2c/busses/i2c-ixp2000.c | 1 - drivers/i2c/busses/i2c-ixp4xx.c | 1 - drivers/i2c/busses/i2c-parport-light.c | 1 - drivers/i2c/busses/i2c-parport.c | 1 - drivers/i2c/busses/i2c-prosavage.c | 1 - drivers/i2c/busses/i2c-savage4.c | 1 - drivers/i2c/busses/i2c-via.c | 1 - drivers/i2c/busses/i2c-voodoo3.c | 2 -- drivers/i2c/busses/scx200_i2c.c | 12 ++++++------ drivers/ieee1394/pcilynx.c | 1 - drivers/media/video/bt8xx/bttv-i2c.c | 1 - drivers/media/video/cx88/cx88-i2c.c | 1 - drivers/media/video/cx88/cx88-vp3054-i2c.c | 1 - drivers/media/video/zoran_card.c | 1 - drivers/video/i810/i810-i2c.c | 1 - drivers/video/matrox/i2c-matroxfb.c | 1 - drivers/video/savage/savagefb-i2c.c | 1 - include/linux/i2c-algo-bit.h | 1 - 22 files changed, 6 insertions(+), 32 deletions(-) (limited to 'include') diff --git a/drivers/acorn/char/i2c.c b/drivers/acorn/char/i2c.c index c26c08b36829..bdb9c8b78ed8 100644 --- a/drivers/acorn/char/i2c.c +++ b/drivers/acorn/char/i2c.c @@ -308,7 +308,6 @@ static struct i2c_algo_bit_data ioc_data = { .getsda = ioc_getsda, .getscl = ioc_getscl, .udelay = 80, - .mdelay = 80, .timeout = 100 }; diff --git a/drivers/i2c/algos/i2c-algo-bit.c b/drivers/i2c/algos/i2c-algo-bit.c index ab230c033f99..761df16838b4 100644 --- a/drivers/i2c/algos/i2c-algo-bit.c +++ b/drivers/i2c/algos/i2c-algo-bit.c @@ -354,10 +354,6 @@ static int sendbytes(struct i2c_adapter *i2c_adap, struct i2c_msg *msg) return (retval<0)? retval : -EFAULT; /* got a better one ?? */ } -#if 0 - /* from asm/delay.h */ - __delay(adap->mdelay * (loops_per_sec / 1000) ); -#endif } return wrcount; } diff --git a/drivers/i2c/busses/i2c-hydra.c b/drivers/i2c/busses/i2c-hydra.c index e0cb3b0f92fa..457d48a0ab9d 100644 --- a/drivers/i2c/busses/i2c-hydra.c +++ b/drivers/i2c/busses/i2c-hydra.c @@ -99,7 +99,6 @@ static struct i2c_algo_bit_data hydra_bit_data = { .getsda = hydra_bit_getsda, .getscl = hydra_bit_getscl, .udelay = 5, - .mdelay = 5, .timeout = HZ }; diff --git a/drivers/i2c/busses/i2c-i810.c b/drivers/i2c/busses/i2c-i810.c index 748be30f2bae..b66fb6bb1870 100644 --- a/drivers/i2c/busses/i2c-i810.c +++ b/drivers/i2c/busses/i2c-i810.c @@ -166,7 +166,6 @@ static struct i2c_algo_bit_data i810_i2c_bit_data = { .getsda = bit_i810i2c_getsda, .getscl = bit_i810i2c_getscl, .udelay = CYCLE_DELAY, - .mdelay = CYCLE_DELAY, .timeout = TIMEOUT, }; @@ -182,7 +181,6 @@ static struct i2c_algo_bit_data i810_ddc_bit_data = { .getsda = bit_i810ddc_getsda, .getscl = bit_i810ddc_getscl, .udelay = CYCLE_DELAY, - .mdelay = CYCLE_DELAY, .timeout = TIMEOUT, }; diff --git a/drivers/i2c/busses/i2c-ixp2000.c b/drivers/i2c/busses/i2c-ixp2000.c index cd6f45d186ab..dd3f4cd3aa68 100644 --- a/drivers/i2c/busses/i2c-ixp2000.c +++ b/drivers/i2c/busses/i2c-ixp2000.c @@ -114,7 +114,6 @@ static int ixp2000_i2c_probe(struct platform_device *plat_dev) drv_data->algo_data.getsda = ixp2000_bit_getsda; drv_data->algo_data.getscl = ixp2000_bit_getscl; drv_data->algo_data.udelay = 6; - drv_data->algo_data.mdelay = 6; drv_data->algo_data.timeout = 100; drv_data->adapter.id = I2C_HW_B_IXP2000, diff --git a/drivers/i2c/busses/i2c-ixp4xx.c b/drivers/i2c/busses/i2c-ixp4xx.c index 2ed07112d683..ab573254a8aa 100644 --- a/drivers/i2c/busses/i2c-ixp4xx.c +++ b/drivers/i2c/busses/i2c-ixp4xx.c @@ -122,7 +122,6 @@ static int ixp4xx_i2c_probe(struct platform_device *plat_dev) drv_data->algo_data.getsda = ixp4xx_bit_getsda; drv_data->algo_data.getscl = ixp4xx_bit_getscl; drv_data->algo_data.udelay = 10; - drv_data->algo_data.mdelay = 10; drv_data->algo_data.timeout = 100; drv_data->adapter.id = I2C_HW_B_IXP4XX; diff --git a/drivers/i2c/busses/i2c-parport-light.c b/drivers/i2c/busses/i2c-parport-light.c index e09ebbb2f9f0..5eb2bd294fd9 100644 --- a/drivers/i2c/busses/i2c-parport-light.c +++ b/drivers/i2c/busses/i2c-parport-light.c @@ -103,7 +103,6 @@ static struct i2c_algo_bit_data parport_algo_data = { .getsda = parport_getsda, .getscl = parport_getscl, .udelay = 50, - .mdelay = 50, .timeout = HZ, }; diff --git a/drivers/i2c/busses/i2c-parport.c b/drivers/i2c/busses/i2c-parport.c index 934bd55bae15..48a829431c7b 100644 --- a/drivers/i2c/busses/i2c-parport.c +++ b/drivers/i2c/busses/i2c-parport.c @@ -138,7 +138,6 @@ static struct i2c_algo_bit_data parport_algo_data = { .getsda = parport_getsda, .getscl = parport_getscl, .udelay = 60, - .mdelay = 60, .timeout = HZ, }; diff --git a/drivers/i2c/busses/i2c-prosavage.c b/drivers/i2c/busses/i2c-prosavage.c index 9479525892e3..7745e21874a8 100644 --- a/drivers/i2c/busses/i2c-prosavage.c +++ b/drivers/i2c/busses/i2c-prosavage.c @@ -180,7 +180,6 @@ static int i2c_register_bus(struct pci_dev *dev, struct s_i2c_bus *p, void __iom p->algo.getsda = bit_s3via_getsda; p->algo.getscl = bit_s3via_getscl; p->algo.udelay = CYCLE_DELAY; - p->algo.mdelay = CYCLE_DELAY; p->algo.timeout = TIMEOUT; p->algo.data = p; p->mmvga = mmvga; diff --git a/drivers/i2c/busses/i2c-savage4.c b/drivers/i2c/busses/i2c-savage4.c index 0c8518298e4d..209f47ea1750 100644 --- a/drivers/i2c/busses/i2c-savage4.c +++ b/drivers/i2c/busses/i2c-savage4.c @@ -140,7 +140,6 @@ static struct i2c_algo_bit_data sav_i2c_bit_data = { .getsda = bit_savi2c_getsda, .getscl = bit_savi2c_getscl, .udelay = CYCLE_DELAY, - .mdelay = CYCLE_DELAY, .timeout = TIMEOUT }; diff --git a/drivers/i2c/busses/i2c-via.c b/drivers/i2c/busses/i2c-via.c index 484bbacfce6b..910e200ad500 100644 --- a/drivers/i2c/busses/i2c-via.c +++ b/drivers/i2c/busses/i2c-via.c @@ -81,7 +81,6 @@ static struct i2c_algo_bit_data bit_data = { .getsda = bit_via_getsda, .getscl = bit_via_getscl, .udelay = 5, - .mdelay = 5, .timeout = HZ }; diff --git a/drivers/i2c/busses/i2c-voodoo3.c b/drivers/i2c/busses/i2c-voodoo3.c index b675773b0cc1..6c8d25183382 100644 --- a/drivers/i2c/busses/i2c-voodoo3.c +++ b/drivers/i2c/busses/i2c-voodoo3.c @@ -160,7 +160,6 @@ static struct i2c_algo_bit_data voo_i2c_bit_data = { .getsda = bit_vooi2c_getsda, .getscl = bit_vooi2c_getscl, .udelay = CYCLE_DELAY, - .mdelay = CYCLE_DELAY, .timeout = TIMEOUT }; @@ -177,7 +176,6 @@ static struct i2c_algo_bit_data voo_ddc_bit_data = { .getsda = bit_vooddc_getsda, .getscl = bit_vooddc_getscl, .udelay = CYCLE_DELAY, - .mdelay = CYCLE_DELAY, .timeout = TIMEOUT }; diff --git a/drivers/i2c/busses/scx200_i2c.c b/drivers/i2c/busses/scx200_i2c.c index cb3ef5ac99fd..8b65a5cf8251 100644 --- a/drivers/i2c/busses/scx200_i2c.c +++ b/drivers/i2c/busses/scx200_i2c.c @@ -71,12 +71,12 @@ static int scx200_i2c_getsda(void *data) */ static struct i2c_algo_bit_data scx200_i2c_data = { - NULL, - scx200_i2c_setsda, - scx200_i2c_setscl, - scx200_i2c_getsda, - scx200_i2c_getscl, - 10, 10, 100, /* waits, timeout */ + .setsda = scx200_i2c_setsda, + .setscl = scx200_i2c_setscl, + .getsda = scx200_i2c_getsda, + .getscl = scx200_i2c_getscl, + .udelay = 10, + .timeout = 100, }; static struct i2c_adapter scx200_i2c_ops = { diff --git a/drivers/ieee1394/pcilynx.c b/drivers/ieee1394/pcilynx.c index e6f41238f5e8..b4f146f2c951 100644 --- a/drivers/ieee1394/pcilynx.c +++ b/drivers/ieee1394/pcilynx.c @@ -137,7 +137,6 @@ static struct i2c_algo_bit_data bit_data = { .getsda = bit_getsda, .getscl = bit_getscl, .udelay = 5, - .mdelay = 5, .timeout = 100, }; diff --git a/drivers/media/video/bt8xx/bttv-i2c.c b/drivers/media/video/bt8xx/bttv-i2c.c index 4b562b386fcf..0dfbcc85ebb9 100644 --- a/drivers/media/video/bt8xx/bttv-i2c.c +++ b/drivers/media/video/bt8xx/bttv-i2c.c @@ -100,7 +100,6 @@ static struct i2c_algo_bit_data bttv_i2c_algo_bit_template = { .getsda = bttv_bit_getsda, .getscl = bttv_bit_getscl, .udelay = 16, - .mdelay = 10, .timeout = 200, }; diff --git a/drivers/media/video/cx88/cx88-i2c.c b/drivers/media/video/cx88/cx88-i2c.c index 70663805cc30..7bea34714861 100644 --- a/drivers/media/video/cx88/cx88-i2c.c +++ b/drivers/media/video/cx88/cx88-i2c.c @@ -155,7 +155,6 @@ static struct i2c_algo_bit_data cx8800_i2c_algo_template = { .getsda = cx8800_bit_getsda, .getscl = cx8800_bit_getscl, .udelay = 16, - .mdelay = 10, .timeout = 200, }; diff --git a/drivers/media/video/cx88/cx88-vp3054-i2c.c b/drivers/media/video/cx88/cx88-vp3054-i2c.c index 751a754a45e9..2b4f1970c7df 100644 --- a/drivers/media/video/cx88/cx88-vp3054-i2c.c +++ b/drivers/media/video/cx88/cx88-vp3054-i2c.c @@ -100,7 +100,6 @@ static struct i2c_algo_bit_data vp3054_i2c_algo_template = { .getsda = vp3054_bit_getsda, .getscl = vp3054_bit_getscl, .udelay = 16, - .mdelay = 10, .timeout = 200, }; diff --git a/drivers/media/video/zoran_card.c b/drivers/media/video/zoran_card.c index f2249ed25273..29f59c36f001 100644 --- a/drivers/media/video/zoran_card.c +++ b/drivers/media/video/zoran_card.c @@ -820,7 +820,6 @@ static struct i2c_algo_bit_data zoran_i2c_bit_data_template = { .getsda = zoran_i2c_getsda, .getscl = zoran_i2c_getscl, .udelay = 10, - .mdelay = 0, .timeout = 100, }; diff --git a/drivers/video/i810/i810-i2c.c b/drivers/video/i810/i810-i2c.c index c1f7b49975dd..7d06b38e80a0 100644 --- a/drivers/video/i810/i810-i2c.c +++ b/drivers/video/i810/i810-i2c.c @@ -98,7 +98,6 @@ static int i810_setup_i2c_bus(struct i810fb_i2c_chan *chan, const char *name) chan->algo.getsda = i810i2c_getsda; chan->algo.getscl = i810i2c_getscl; chan->algo.udelay = 10; - chan->algo.mdelay = 10; chan->algo.timeout = (HZ/2); chan->algo.data = chan; diff --git a/drivers/video/matrox/i2c-matroxfb.c b/drivers/video/matrox/i2c-matroxfb.c index 9842042d2af5..795c1a99a680 100644 --- a/drivers/video/matrox/i2c-matroxfb.c +++ b/drivers/video/matrox/i2c-matroxfb.c @@ -100,7 +100,6 @@ static struct i2c_algo_bit_data matrox_i2c_algo_template = .getsda = matroxfb_gpio_getsda, .getscl = matroxfb_gpio_getscl, .udelay = 10, - .mdelay = 10, .timeout = 100, }; diff --git a/drivers/video/savage/savagefb-i2c.c b/drivers/video/savage/savagefb-i2c.c index e83befd16d63..d7d810dbf0bd 100644 --- a/drivers/video/savage/savagefb-i2c.c +++ b/drivers/video/savage/savagefb-i2c.c @@ -148,7 +148,6 @@ static int savage_setup_i2c_bus(struct savagefb_i2c_chan *chan, chan->adapter.algo_data = &chan->algo; chan->adapter.dev.parent = &chan->par->pcidev->dev; chan->algo.udelay = 40; - chan->algo.mdelay = 5; chan->algo.timeout = 20; chan->algo.data = chan; diff --git a/include/linux/i2c-algo-bit.h b/include/linux/i2c-algo-bit.h index c0e7fab28ce3..c8f8df25c7e0 100644 --- a/include/linux/i2c-algo-bit.h +++ b/include/linux/i2c-algo-bit.h @@ -40,7 +40,6 @@ struct i2c_algo_bit_data { /* local settings */ int udelay; /* half-clock-cycle time in microsecs */ /* i.e. clock is (500 / udelay) KHz */ - int mdelay; /* in millisecs, unused */ int timeout; /* in jiffies */ }; -- cgit v1.2.3 From 9b4ccb86b4abe644ffd218720da2f942b6a20fc2 Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Sun, 3 Sep 2006 22:22:50 +0200 Subject: i2c-algo-pcf: Discard the mdelay data struct member i2c-algo-pcf: Discard the mdelay data struct member Just as i2c-algo-bit, i2c-algo-pcf has an unused mdelay struct member, which we can get rid of to spare some code and memory. Signed-off-by: Adrian Bunk Signed-off-by: Jean Delvare Signed-off-by: Greg Kroah-Hartman --- drivers/i2c/busses/i2c-elektor.c | 1 - include/linux/i2c-algo-pcf.h | 1 - 2 files changed, 2 deletions(-) (limited to 'include') diff --git a/drivers/i2c/busses/i2c-elektor.c b/drivers/i2c/busses/i2c-elektor.c index 59f8308c2356..caa8e5c8bfbb 100644 --- a/drivers/i2c/busses/i2c-elektor.c +++ b/drivers/i2c/busses/i2c-elektor.c @@ -196,7 +196,6 @@ static struct i2c_algo_pcf_data pcf_isa_data = { .getclock = pcf_isa_getclock, .waitforpin = pcf_isa_waitforpin, .udelay = 10, - .mdelay = 10, .timeout = 100, }; diff --git a/include/linux/i2c-algo-pcf.h b/include/linux/i2c-algo-pcf.h index 18b0adf57a3d..9908f3fc4839 100644 --- a/include/linux/i2c-algo-pcf.h +++ b/include/linux/i2c-algo-pcf.h @@ -35,7 +35,6 @@ struct i2c_algo_pcf_data { /* local settings */ int udelay; - int mdelay; int timeout; }; -- cgit v1.2.3 From af71ff690b92894f66ccede27f731150dc10d80d Mon Sep 17 00:00:00 2001 From: David Brownell Date: Sun, 3 Sep 2006 22:37:11 +0200 Subject: i2c: Let drivers constify i2c_algorithm data i2c: Let drivers constify i2c_algorithm data Let drivers constify I2C algorithm method operations tables, moving them from ".data" to ".rodata". Signed-off-by: David Brownell Signed-off-by: Jean Delvare Signed-off-by: Greg Kroah-Hartman --- include/linux/i2c.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/i2c.h b/include/linux/i2c.h index eb0628a7ecc6..23ad1ee42a4c 100644 --- a/include/linux/i2c.h +++ b/include/linux/i2c.h @@ -220,7 +220,7 @@ struct i2c_adapter { struct module *owner; unsigned int id; unsigned int class; - struct i2c_algorithm *algo;/* the algorithm to access the bus */ + const struct i2c_algorithm *algo; /* the algorithm to access the bus */ void *algo_data; /* --- administration stuff. */ -- cgit v1.2.3 From 6d3aae9d74221b00e2cbf50a353527e5a71a58ba Mon Sep 17 00:00:00 2001 From: Jean Delvare Date: Sun, 3 Sep 2006 22:41:08 +0200 Subject: i2c: Drop unimplemented slave functions i2c: Drop unimplemented slave functions Drop the function declarations for slave mode support of i2c adapters. This was never implemented, and by the time it is I bet we will want something different anyway. Signed-off-by: Jean Delvare Signed-off-by: Greg Kroah-Hartman --- include/linux/i2c.h | 12 ------------ 1 file changed, 12 deletions(-) (limited to 'include') diff --git a/include/linux/i2c.h b/include/linux/i2c.h index 23ad1ee42a4c..9b5d04768c2c 100644 --- a/include/linux/i2c.h +++ b/include/linux/i2c.h @@ -64,14 +64,6 @@ extern int i2c_master_recv(struct i2c_client *,char* ,int); */ extern int i2c_transfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num); -/* - * Some adapter types (i.e. PCF 8584 based ones) may support slave behaviuor. - * This is not tested/implemented yet and will change in the future. - */ -extern int i2c_slave_send(struct i2c_client *,char*,int); -extern int i2c_slave_recv(struct i2c_client *,char*,int); - - /* This is the very generalized SMBus access routine. You probably do not want to use this, though; one of the functions below may be much easier, @@ -201,10 +193,6 @@ struct i2c_algorithm { unsigned short flags, char read_write, u8 command, int size, union i2c_smbus_data * data); - /* --- these optional/future use for some adapter types.*/ - int (*slave_send)(struct i2c_adapter *,char*,int); - int (*slave_recv)(struct i2c_adapter *,char*,int); - /* --- ioctl like call to set div. parameters. */ int (*algo_control)(struct i2c_adapter *, unsigned int, unsigned long); -- cgit v1.2.3 From 46ff34633ed09f36ebc4b5c40ac37e592172df74 Mon Sep 17 00:00:00 2001 From: Brice Goglin Date: Thu, 31 Aug 2006 01:55:24 -0400 Subject: MSI: Rename PCI_CAP_ID_HT_IRQCONF into PCI_CAP_ID_HT 0x08 is the HT capability, while PCI_CAP_ID_HT_IRQCONF would be the subtype 0x80 that mpic_scan_ht_pic() uses. Rename PCI_CAP_ID_HT_IRQCONF into PCI_CAP_ID_HT. And by the way, use it in the ipath driver instead of defining its own HT_CAPABILITY_ID. Signed-off-by: Brice Goglin Signed-off-by: Greg Kroah-Hartman --- arch/powerpc/sysdev/mpic.c | 2 +- drivers/infiniband/hw/ipath/ipath_iba6110.c | 5 ++--- include/linux/pci_regs.h | 2 +- 3 files changed, 4 insertions(+), 5 deletions(-) (limited to 'include') diff --git a/arch/powerpc/sysdev/mpic.c b/arch/powerpc/sysdev/mpic.c index b604926401f5..723972bb5bd9 100644 --- a/arch/powerpc/sysdev/mpic.c +++ b/arch/powerpc/sysdev/mpic.c @@ -339,7 +339,7 @@ static void __init mpic_scan_ht_pic(struct mpic *mpic, u8 __iomem *devbase, for (pos = readb(devbase + PCI_CAPABILITY_LIST); pos != 0; pos = readb(devbase + pos + PCI_CAP_LIST_NEXT)) { u8 id = readb(devbase + pos + PCI_CAP_LIST_ID); - if (id == PCI_CAP_ID_HT_IRQCONF) { + if (id == PCI_CAP_ID_HT) { id = readb(devbase + pos + 3); if (id == 0x80) break; diff --git a/drivers/infiniband/hw/ipath/ipath_iba6110.c b/drivers/infiniband/hw/ipath/ipath_iba6110.c index bf2455a6d562..5c9b509e40e4 100644 --- a/drivers/infiniband/hw/ipath/ipath_iba6110.c +++ b/drivers/infiniband/hw/ipath/ipath_iba6110.c @@ -742,7 +742,6 @@ static int ipath_setup_ht_reset(struct ipath_devdata *dd) return 0; } -#define HT_CAPABILITY_ID 0x08 /* HT capabilities not defined in kernel */ #define HT_INTR_DISC_CONFIG 0x80 /* HT interrupt and discovery cap */ #define HT_INTR_REG_INDEX 2 /* intconfig requires indirect accesses */ @@ -973,7 +972,7 @@ static int ipath_setup_ht_config(struct ipath_devdata *dd, * do this early, before we ever enable errors or hardware errors, * mostly to avoid causing the chip to enter freeze mode. */ - pos = pci_find_capability(pdev, HT_CAPABILITY_ID); + pos = pci_find_capability(pdev, PCI_CAP_ID_HT); if (!pos) { ipath_dev_err(dd, "Couldn't find HyperTransport " "capability; no interrupts\n"); @@ -996,7 +995,7 @@ static int ipath_setup_ht_config(struct ipath_devdata *dd, else if (cap_type == HT_INTR_DISC_CONFIG) ihandler = set_int_handler(dd, pdev, pos); } while ((pos = pci_find_next_capability(pdev, pos, - HT_CAPABILITY_ID))); + PCI_CAP_ID_HT))); if (!ihandler) { ipath_dev_err(dd, "Couldn't find interrupt handler in " diff --git a/include/linux/pci_regs.h b/include/linux/pci_regs.h index 96930cb5927c..7d0e26cba420 100644 --- a/include/linux/pci_regs.h +++ b/include/linux/pci_regs.h @@ -196,7 +196,7 @@ #define PCI_CAP_ID_MSI 0x05 /* Message Signalled Interrupts */ #define PCI_CAP_ID_CHSWP 0x06 /* CompactPCI HotSwap */ #define PCI_CAP_ID_PCIX 0x07 /* PCI-X */ -#define PCI_CAP_ID_HT_IRQCONF 0x08 /* HyperTransport IRQ Configuration */ +#define PCI_CAP_ID_HT 0x08 /* HyperTransport */ #define PCI_CAP_ID_VNDR 0x09 /* Vendor specific capability */ #define PCI_CAP_ID_SHPC 0x0C /* PCI Standard Hot-Plug Controller */ #define PCI_CAP_ID_EXP 0x10 /* PCI Express */ -- cgit v1.2.3 From 6397c75cbc4d7dbc3d07278b57c82a47dafb21b5 Mon Sep 17 00:00:00 2001 From: Brice Goglin Date: Thu, 31 Aug 2006 01:55:32 -0400 Subject: MSI: Blacklist PCI-E chipsets depending on Hypertransport MSI capability Introduce msi_ht_cap_enabled() to check the MSI capability in the Hypertransport configuration space. It is used in a generic quirk quirk_msi_ht_cap() to check whether MSI is enabled on hypertransport chipset, and a nVidia specific quirk quirk_nvidia_ck804_msi_ht_cap() where two 2 HT MSI mappings have to be checked. Both quirks set the PCI_BUS_FLAGS_NO_MSI bus flag when MSI is disabled. Signed-off-by: Brice Goglin Signed-off-by: Greg Kroah-Hartman --- drivers/pci/quirks.c | 59 +++++++++++++++++++++++++++++++++++++++++++++++++ include/linux/pci_ids.h | 1 + 2 files changed, 60 insertions(+) (limited to 'include') diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 8385b815ecb1..08cd86a6dd66 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -1703,6 +1703,65 @@ static void __devinit quirk_disable_msi(struct pci_dev *dev) } } DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_disable_msi); + +/* Go through the list of Hypertransport capabilities and + * return 1 if a HT MSI capability is found and enabled */ +static int __devinit msi_ht_cap_enabled(struct pci_dev *dev) +{ + u8 pos; + int ttl; + for (pos = pci_find_capability(dev, PCI_CAP_ID_HT), ttl = 48; + pos && ttl; + pos = pci_find_next_capability(dev, pos, PCI_CAP_ID_HT), ttl--) { + u32 cap_hdr; + /* MSI mapping section according to Hypertransport spec */ + if (pci_read_config_dword(dev, pos, &cap_hdr) == 0 + && (cap_hdr & 0xf8000000) == 0xa8000000 /* MSI mapping */) { + printk(KERN_INFO "PCI: Found HT MSI mapping on %s with capability %s\n", + pci_name(dev), cap_hdr & 0x10000 ? "enabled" : "disabled"); + return (cap_hdr & 0x10000) != 0; /* MSI mapping cap enabled */ + } + } + return 0; +} + +/* Check the hypertransport MSI mapping to know whether MSI is enabled or not */ +static void __devinit quirk_msi_ht_cap(struct pci_dev *dev) +{ + if (dev->subordinate && !msi_ht_cap_enabled(dev)) { + printk(KERN_WARNING "PCI: MSI quirk detected. " + "MSI disabled on chipset %s.\n", + pci_name(dev)); + dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MSI; + } +} +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT2000_PCIE, + quirk_msi_ht_cap); + +/* The nVidia CK804 chipset may have 2 HT MSI mappings. + * MSI are supported if the MSI capability set in any of these mappings. + */ +static void __devinit quirk_nvidia_ck804_msi_ht_cap(struct pci_dev *dev) +{ + struct pci_dev *pdev; + + if (!dev->subordinate) + return; + + /* check HT MSI cap on this chipset and the root one. + * a single one having MSI is enough to be sure that MSI are supported. + */ + pdev = pci_find_slot(dev->bus->number, 0); + if (dev->subordinate && !msi_ht_cap_enabled(dev) + && !msi_ht_cap_enabled(pdev)) { + printk(KERN_WARNING "PCI: MSI quirk detected. " + "MSI disabled on chipset %s.\n", + pci_name(dev)); + dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MSI; + } +} +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE, + quirk_nvidia_ck804_msi_ht_cap); #endif /* CONFIG_PCI_MSI */ EXPORT_SYMBOL(pcie_mch_quirk); diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h index 6a1e09834559..b9e263adebab 100644 --- a/include/linux/pci_ids.h +++ b/include/linux/pci_ids.h @@ -1411,6 +1411,7 @@ #define PCI_DEVICE_ID_SERVERWORKS_LE 0x0009 #define PCI_DEVICE_ID_SERVERWORKS_GCNB_LE 0x0017 #define PCI_DEVICE_ID_SERVERWORKS_EPB 0x0103 +#define PCI_DEVICE_ID_SERVERWORKS_HT2000_PCIE 0x0132 #define PCI_DEVICE_ID_SERVERWORKS_OSB4 0x0200 #define PCI_DEVICE_ID_SERVERWORKS_CSB5 0x0201 #define PCI_DEVICE_ID_SERVERWORKS_CSB6 0x0203 -- cgit v1.2.3 From 6c2b374d74857e892080ee726184ec1d15e7d4e4 Mon Sep 17 00:00:00 2001 From: "Zhang, Yanmin" Date: Mon, 31 Jul 2006 15:21:33 +0800 Subject: PCI-Express AER implemetation: AER core and aerdriver Patch 3 implements the core part of PCI-Express AER and aerdrv port service driver. When a root port service device is probed, the aerdrv will call request_irq to register irq handler for AER error interrupt. When a device sends an PCI-Express error message to the root port, the root port will trigger an interrupt, by either MSI or IO-APIC, then kernel would run the irq handler. The handler collects root error status register and schedules a work. The work will call the core part to process the error based on its type (Correctable/non-fatal/fatal). As for Correctable errors, the patch chooses to just clear the correctable error status register of the device. As for the non-fatal error, the patch follows generic PCI error handler rules to call the error callback functions of the endpoint's driver. If the device is a bridge, the patch chooses to broadcast the error to downstream devices. As for the fatal error, the patch resets the pci-express link and follows generic PCI error handler rules to call the error callback functions of the endpoint's driver. If the device is a bridge, the patch chooses to broadcast the error to downstream devices. Signed-off-by: Zhang Yanmin Signed-off-by: Greg Kroah-Hartman --- drivers/pci/pcie/Kconfig | 1 + drivers/pci/pcie/Makefile | 3 + drivers/pci/pcie/aer/Kconfig | 12 + drivers/pci/pcie/aer/Makefile | 8 + drivers/pci/pcie/aer/aerdrv.c | 346 +++++++++++++++ drivers/pci/pcie/aer/aerdrv.h | 125 ++++++ drivers/pci/pcie/aer/aerdrv_acpi.c | 68 +++ drivers/pci/pcie/aer/aerdrv_core.c | 757 +++++++++++++++++++++++++++++++++ drivers/pci/pcie/aer/aerdrv_errprint.c | 248 +++++++++++ include/linux/aer.h | 24 ++ include/linux/pcieport_if.h | 6 + 11 files changed, 1598 insertions(+) create mode 100644 drivers/pci/pcie/aer/Kconfig create mode 100644 drivers/pci/pcie/aer/Makefile create mode 100644 drivers/pci/pcie/aer/aerdrv.c create mode 100644 drivers/pci/pcie/aer/aerdrv.h create mode 100644 drivers/pci/pcie/aer/aerdrv_acpi.c create mode 100644 drivers/pci/pcie/aer/aerdrv_core.c create mode 100644 drivers/pci/pcie/aer/aerdrv_errprint.c create mode 100644 include/linux/aer.h (limited to 'include') diff --git a/drivers/pci/pcie/Kconfig b/drivers/pci/pcie/Kconfig index 1012db8b8b2c..0ad92a8ad8b1 100644 --- a/drivers/pci/pcie/Kconfig +++ b/drivers/pci/pcie/Kconfig @@ -34,3 +34,4 @@ config HOTPLUG_PCI_PCIE_POLL_EVENT_MODE When in doubt, say N. +source "drivers/pci/pcie/aer/Kconfig" diff --git a/drivers/pci/pcie/Makefile b/drivers/pci/pcie/Makefile index 984fa87283e3..e00fb99acf44 100644 --- a/drivers/pci/pcie/Makefile +++ b/drivers/pci/pcie/Makefile @@ -5,3 +5,6 @@ pcieportdrv-y := portdrv_core.o portdrv_pci.o portdrv_bus.o obj-$(CONFIG_PCIEPORTBUS) += pcieportdrv.o + +# Build PCI Express AER if needed +obj-$(CONFIG_PCIEAER) += aer/ diff --git a/drivers/pci/pcie/aer/Kconfig b/drivers/pci/pcie/aer/Kconfig new file mode 100644 index 000000000000..3f37a60a6438 --- /dev/null +++ b/drivers/pci/pcie/aer/Kconfig @@ -0,0 +1,12 @@ +# +# PCI Express Root Port Device AER Configuration +# + +config PCIEAER + boolean "Root Port Advanced Error Reporting support" + depends on PCIEPORTBUS && ACPI + default y + help + This enables PCI Express Root Port Advanced Error Reporting + (AER) driver support. Error reporting messages sent to Root + Port will be handled by PCI Express AER driver. diff --git a/drivers/pci/pcie/aer/Makefile b/drivers/pci/pcie/aer/Makefile new file mode 100644 index 000000000000..15a4f40d520b --- /dev/null +++ b/drivers/pci/pcie/aer/Makefile @@ -0,0 +1,8 @@ +# +# Makefile for PCI-Express Root Port Advanced Error Reporting Driver +# + +obj-$(CONFIG_PCIEAER) += aerdriver.o + +aerdriver-objs := aerdrv_errprint.o aerdrv_core.o aerdrv.o aerdrv_acpi.o + diff --git a/drivers/pci/pcie/aer/aerdrv.c b/drivers/pci/pcie/aer/aerdrv.c new file mode 100644 index 000000000000..0d4ac027d53e --- /dev/null +++ b/drivers/pci/pcie/aer/aerdrv.c @@ -0,0 +1,346 @@ +/* + * drivers/pci/pcie/aer/aerdrv.c + * + * 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 implements the AER root port service driver. The driver will + * register an irq handler. When root port triggers an AER interrupt, the irq + * handler will collect root port status and schedule a work. + * + * Copyright (C) 2006 Intel Corp. + * Tom Long Nguyen (tom.l.nguyen@intel.com) + * Zhang Yanmin (yanmin.zhang@intel.com) + * + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "aerdrv.h" + +/* + * Version Information + */ +#define DRIVER_VERSION "v1.0" +#define DRIVER_AUTHOR "tom.l.nguyen@intel.com" +#define DRIVER_DESC "Root Port Advanced Error Reporting Driver" +MODULE_AUTHOR(DRIVER_AUTHOR); +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_LICENSE("GPL"); + +static int __devinit aer_probe (struct pcie_device *dev, + const struct pcie_port_service_id *id ); +static void aer_remove(struct pcie_device *dev); +static int aer_suspend(struct pcie_device *dev, pm_message_t state) +{return 0;} +static int aer_resume(struct pcie_device *dev) {return 0;} +static pci_ers_result_t aer_error_detected(struct pci_dev *dev, + enum pci_channel_state error); +static void aer_error_resume(struct pci_dev *dev); +static pci_ers_result_t aer_root_reset(struct pci_dev *dev); + +/* + * PCI Express bus's AER Root service driver data structure + */ +static struct pcie_port_service_id aer_id[] = { + { + .vendor = PCI_ANY_ID, + .device = PCI_ANY_ID, + .port_type = PCIE_RC_PORT, + .service_type = PCIE_PORT_SERVICE_AER, + }, + { /* end: all zeroes */ } +}; + +static struct pci_error_handlers aer_error_handlers = { + .error_detected = aer_error_detected, + .resume = aer_error_resume, +}; + +static struct pcie_port_service_driver aerdrv = { + .name = "aer", + .id_table = &aer_id[0], + + .probe = aer_probe, + .remove = aer_remove, + + .suspend = aer_suspend, + .resume = aer_resume, + + .err_handler = &aer_error_handlers, + + .reset_link = aer_root_reset, +}; + +/** + * aer_irq - Root Port's ISR + * @irq: IRQ assigned to Root Port + * @context: pointer to Root Port data structure + * @r: pointer struct pt_regs + * + * Invoked when Root Port detects AER messages. + **/ +static irqreturn_t aer_irq(int irq, void *context, struct pt_regs * r) +{ + unsigned int status, id; + struct pcie_device *pdev = (struct pcie_device *)context; + struct aer_rpc *rpc = get_service_data(pdev); + int next_prod_idx; + unsigned long flags; + int pos; + + pos = pci_find_aer_capability(pdev->port); + /* + * Must lock access to Root Error Status Reg, Root Error ID Reg, + * and Root error producer/consumer index + */ + spin_lock_irqsave(&rpc->e_lock, flags); + + /* Read error status */ + pci_read_config_dword(pdev->port, pos + PCI_ERR_ROOT_STATUS, &status); + if (!(status & ROOT_ERR_STATUS_MASKS)) { + spin_unlock_irqrestore(&rpc->e_lock, flags); + return IRQ_NONE; + } + + /* Read error source and clear error status */ + pci_read_config_dword(pdev->port, pos + PCI_ERR_ROOT_COR_SRC, &id); + pci_write_config_dword(pdev->port, pos + PCI_ERR_ROOT_STATUS, status); + + /* Store error source for later DPC handler */ + next_prod_idx = rpc->prod_idx + 1; + if (next_prod_idx == AER_ERROR_SOURCES_MAX) + next_prod_idx = 0; + if (next_prod_idx == rpc->cons_idx) { + /* + * Error Storm Condition - possibly the same error occurred. + * Drop the error. + */ + spin_unlock_irqrestore(&rpc->e_lock, flags); + return IRQ_HANDLED; + } + rpc->e_sources[rpc->prod_idx].status = status; + rpc->e_sources[rpc->prod_idx].id = id; + rpc->prod_idx = next_prod_idx; + spin_unlock_irqrestore(&rpc->e_lock, flags); + + /* Invoke DPC handler */ + schedule_work(&rpc->dpc_handler); + + return IRQ_HANDLED; +} + +/** + * aer_alloc_rpc - allocate Root Port data structure + * @dev: pointer to the pcie_dev data structure + * + * Invoked when Root Port's AER service is loaded. + **/ +static struct aer_rpc* aer_alloc_rpc(struct pcie_device *dev) +{ + struct aer_rpc *rpc; + + if (!(rpc = (struct aer_rpc *)kmalloc(sizeof(struct aer_rpc), + GFP_KERNEL))) + return NULL; + + memset(rpc, 0, sizeof(struct aer_rpc)); + /* + * Initialize Root lock access, e_lock, to Root Error Status Reg, + * Root Error ID Reg, and Root error producer/consumer index. + */ + rpc->e_lock = SPIN_LOCK_UNLOCKED; + + rpc->rpd = dev; + INIT_WORK(&rpc->dpc_handler, aer_isr, (void *)dev); + rpc->prod_idx = rpc->cons_idx = 0; + mutex_init(&rpc->rpc_mutex); + init_waitqueue_head(&rpc->wait_release); + + /* Use PCIE bus function to store rpc into PCIE device */ + set_service_data(dev, rpc); + + return rpc; +} + +/** + * aer_remove - clean up resources + * @dev: pointer to the pcie_dev data structure + * + * Invoked when PCI Express bus unloads or AER probe fails. + **/ +static void aer_remove(struct pcie_device *dev) +{ + struct aer_rpc *rpc = get_service_data(dev); + + if (rpc) { + /* If register interrupt service, it must be free. */ + if (rpc->isr) + free_irq(dev->irq, dev); + + wait_event(rpc->wait_release, rpc->prod_idx == rpc->cons_idx); + + aer_delete_rootport(rpc); + set_service_data(dev, NULL); + } +} + +/** + * aer_probe - initialize resources + * @dev: pointer to the pcie_dev data structure + * @id: pointer to the service id data structure + * + * Invoked when PCI Express bus loads AER service driver. + **/ +static int __devinit aer_probe (struct pcie_device *dev, + const struct pcie_port_service_id *id ) +{ + int status; + struct aer_rpc *rpc; + struct device *device = &dev->device; + + /* Init */ + if ((status = aer_init(dev))) + return status; + + /* Alloc rpc data structure */ + if (!(rpc = aer_alloc_rpc(dev))) { + printk(KERN_DEBUG "%s: Alloc rpc fails on PCIE device[%s]\n", + __FUNCTION__, device->bus_id); + aer_remove(dev); + return -ENOMEM; + } + + /* Request IRQ ISR */ + if ((status = request_irq(dev->irq, aer_irq, SA_SHIRQ, "aerdrv", + dev))) { + printk(KERN_DEBUG "%s: Request ISR fails on PCIE device[%s]\n", + __FUNCTION__, device->bus_id); + aer_remove(dev); + return status; + } + + rpc->isr = 1; + + aer_enable_rootport(rpc); + + return status; +} + +/** + * aer_root_reset - reset link on Root Port + * @dev: pointer to Root Port's pci_dev data structure + * + * Invoked by Port Bus driver when performing link reset at Root Port. + **/ +static pci_ers_result_t aer_root_reset(struct pci_dev *dev) +{ + u16 p2p_ctrl; + u32 status; + int pos; + + pos = pci_find_aer_capability(dev); + + /* Disable Root's interrupt in response to error messages */ + pci_write_config_dword(dev, pos + PCI_ERR_ROOT_COMMAND, 0); + + /* Assert Secondary Bus Reset */ + pci_read_config_word(dev, PCI_BRIDGE_CONTROL, &p2p_ctrl); + p2p_ctrl |= PCI_CB_BRIDGE_CTL_CB_RESET; + pci_write_config_word(dev, PCI_BRIDGE_CONTROL, p2p_ctrl); + + /* De-assert Secondary Bus Reset */ + p2p_ctrl &= ~PCI_CB_BRIDGE_CTL_CB_RESET; + pci_write_config_word(dev, PCI_BRIDGE_CONTROL, p2p_ctrl); + + /* + * System software must wait for at least 100ms from the end + * of a reset of one or more device before it is permitted + * to issue Configuration Requests to those devices. + */ + msleep(200); + printk(KERN_DEBUG "Complete link reset at Root[%s]\n", dev->dev.bus_id); + + /* Enable Root Port's interrupt in response to error messages */ + pci_read_config_dword(dev, pos + PCI_ERR_ROOT_STATUS, &status); + pci_write_config_dword(dev, pos + PCI_ERR_ROOT_STATUS, status); + pci_write_config_dword(dev, + pos + PCI_ERR_ROOT_COMMAND, + ROOT_PORT_INTR_ON_MESG_MASK); + + return PCI_ERS_RESULT_RECOVERED; +} + +/** + * aer_error_detected - update severity status + * @dev: pointer to Root Port's pci_dev data structure + * @error: error severity being notified by port bus + * + * Invoked by Port Bus driver during error recovery. + **/ +static pci_ers_result_t aer_error_detected(struct pci_dev *dev, + enum pci_channel_state error) +{ + /* Root Port has no impact. Always recovers. */ + return PCI_ERS_RESULT_CAN_RECOVER; +} + +/** + * aer_error_resume - clean up corresponding error status bits + * @dev: pointer to Root Port's pci_dev data structure + * + * Invoked by Port Bus driver during nonfatal recovery. + **/ +static void aer_error_resume(struct pci_dev *dev) +{ + int pos; + u32 status, mask; + u16 reg16; + + /* Clean up Root device status */ + pos = pci_find_capability(dev, PCI_CAP_ID_EXP); + pci_read_config_word(dev, pos + PCI_EXP_DEVSTA, ®16); + pci_write_config_word(dev, pos + PCI_EXP_DEVSTA, reg16); + + /* Clean AER Root Error Status */ + pos = pci_find_aer_capability(dev); + pci_read_config_dword(dev, pos + PCI_ERR_UNCOR_STATUS, &status); + pci_read_config_dword(dev, pos + PCI_ERR_UNCOR_SEVER, &mask); + if (dev->error_state == pci_channel_io_normal) + status &= ~mask; /* Clear corresponding nonfatal bits */ + else + status &= mask; /* Clear corresponding fatal bits */ + pci_write_config_dword(dev, pos + PCI_ERR_UNCOR_STATUS, status); +} + +/** + * aer_service_init - register AER root service driver + * + * Invoked when AER root service driver is loaded. + **/ +static int __init aer_service_init(void) +{ + return pcie_port_service_register(&aerdrv); +} + +/** + * aer_service_exit - unregister AER root service driver + * + * Invoked when AER root service driver is unloaded. + **/ +static void __exit aer_service_exit(void) +{ + pcie_port_service_unregister(&aerdrv); +} + +module_init(aer_service_init); +module_exit(aer_service_exit); diff --git a/drivers/pci/pcie/aer/aerdrv.h b/drivers/pci/pcie/aer/aerdrv.h new file mode 100644 index 000000000000..daf0cad88fc8 --- /dev/null +++ b/drivers/pci/pcie/aer/aerdrv.h @@ -0,0 +1,125 @@ +/* + * Copyright (C) 2006 Intel Corp. + * Tom Long Nguyen (tom.l.nguyen@intel.com) + * Zhang Yanmin (yanmin.zhang@intel.com) + * + */ + +#ifndef _AERDRV_H_ +#define _AERDRV_H_ + +#include +#include + +#define AER_NONFATAL 0 +#define AER_FATAL 1 +#define AER_CORRECTABLE 2 +#define AER_UNCORRECTABLE 4 +#define AER_ERROR_MASK 0x001fffff +#define AER_ERROR(d) (d & AER_ERROR_MASK) + +#define OSC_METHOD_RUN_SUCCESS 0 +#define OSC_METHOD_NOT_SUPPORTED 1 +#define OSC_METHOD_RUN_FAILURE 2 + +/* Root Error Status Register Bits */ +#define ROOT_ERR_STATUS_MASKS 0x0f + +#define SYSTEM_ERROR_INTR_ON_MESG_MASK (PCI_EXP_RTCTL_SECEE| \ + PCI_EXP_RTCTL_SENFEE| \ + PCI_EXP_RTCTL_SEFEE) +#define ROOT_PORT_INTR_ON_MESG_MASK (PCI_ERR_ROOT_CMD_COR_EN| \ + PCI_ERR_ROOT_CMD_NONFATAL_EN| \ + PCI_ERR_ROOT_CMD_FATAL_EN) +#define ERR_COR_ID(d) (d & 0xffff) +#define ERR_UNCOR_ID(d) (d >> 16) + +#define AER_SUCCESS 0 +#define AER_UNSUCCESS 1 +#define AER_ERROR_SOURCES_MAX 100 + +#define AER_LOG_TLP_MASKS (PCI_ERR_UNC_POISON_TLP| \ + PCI_ERR_UNC_ECRC| \ + PCI_ERR_UNC_UNSUP| \ + PCI_ERR_UNC_COMP_ABORT| \ + PCI_ERR_UNC_UNX_COMP| \ + PCI_ERR_UNC_MALF_TLP) + +/* AER Error Info Flags */ +#define AER_TLP_HEADER_VALID_FLAG 0x00000001 +#define AER_MULTI_ERROR_VALID_FLAG 0x00000002 + +#define ERR_CORRECTABLE_ERROR_MASK 0x000031c1 +#define ERR_UNCORRECTABLE_ERROR_MASK 0x001ff010 + +struct header_log_regs { + unsigned int dw0; + unsigned int dw1; + unsigned int dw2; + unsigned int dw3; +}; + +struct aer_err_info { + int severity; /* 0:NONFATAL | 1:FATAL | 2:COR */ + int flags; + unsigned int status; /* COR/UNCOR Error Status */ + struct header_log_regs tlp; /* TLP Header */ +}; + +struct aer_err_source { + unsigned int status; + unsigned int id; +}; + +struct aer_rpc { + struct pcie_device *rpd; /* Root Port device */ + struct work_struct dpc_handler; + struct aer_err_source e_sources[AER_ERROR_SOURCES_MAX]; + unsigned short prod_idx; /* Error Producer Index */ + unsigned short cons_idx; /* Error Consumer Index */ + int isr; + spinlock_t e_lock; /* + * Lock access to Error Status/ID Regs + * and error producer/consumer index + */ + struct mutex rpc_mutex; /* + * only one thread could do + * recovery on the same + * root port hierachy + */ + wait_queue_head_t wait_release; +}; + +struct aer_broadcast_data { + enum pci_channel_state state; + enum pci_ers_result result; +}; + +static inline pci_ers_result_t merge_result(enum pci_ers_result orig, + enum pci_ers_result new) +{ + switch (orig) { + case PCI_ERS_RESULT_CAN_RECOVER: + case PCI_ERS_RESULT_RECOVERED: + orig = new; + break; + case PCI_ERS_RESULT_DISCONNECT: + if (new == PCI_ERS_RESULT_NEED_RESET) + orig = new; + break; + default: + break; + } + + return orig; +} + +extern struct bus_type pcie_port_bus_type; +extern void aer_enable_rootport(struct aer_rpc *rpc); +extern void aer_delete_rootport(struct aer_rpc *rpc); +extern int aer_init(struct pcie_device *dev); +extern void aer_isr(void *context); +extern void aer_print_error(struct pci_dev *dev, struct aer_err_info *info); +extern int aer_osc_setup(struct pci_dev *dev); + +#endif //_AERDRV_H_ diff --git a/drivers/pci/pcie/aer/aerdrv_acpi.c b/drivers/pci/pcie/aer/aerdrv_acpi.c new file mode 100644 index 000000000000..fa68e89ebec9 --- /dev/null +++ b/drivers/pci/pcie/aer/aerdrv_acpi.c @@ -0,0 +1,68 @@ +/* + * Access ACPI _OSC method + * + * Copyright (C) 2006 Intel Corp. + * Tom Long Nguyen (tom.l.nguyen@intel.com) + * Zhang Yanmin (yanmin.zhang@intel.com) + * + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "aerdrv.h" + +/** + * aer_osc_setup - run ACPI _OSC method + * + * Return: + * Zero if success. Nonzero for otherwise. + * + * Invoked when PCIE bus loads AER service driver. To avoid conflict with + * BIOS AER support requires BIOS to yield AER control to OS native driver. + **/ +int aer_osc_setup(struct pci_dev *dev) +{ + int retval = OSC_METHOD_RUN_SUCCESS; + acpi_status status; + acpi_handle handle = DEVICE_ACPI_HANDLE(&dev->dev); + struct pci_dev *pdev = dev; + struct pci_bus *parent; + + while (!handle) { + if (!pdev || !pdev->bus->parent) + break; + parent = pdev->bus->parent; + if (!parent->self) + /* Parent must be a host bridge */ + handle = acpi_get_pci_rootbridge_handle( + pci_domain_nr(parent), + parent->number); + else + handle = DEVICE_ACPI_HANDLE( + &(parent->self->dev)); + pdev = parent->self; + } + + if (!handle) + return OSC_METHOD_NOT_SUPPORTED; + + pci_osc_support_set(OSC_EXT_PCI_CONFIG_SUPPORT); + status = pci_osc_control_set(handle, OSC_PCI_EXPRESS_AER_CONTROL | + OSC_PCI_EXPRESS_CAP_STRUCTURE_CONTROL); + if (ACPI_FAILURE(status)) { + if (status == AE_SUPPORT) + retval = OSC_METHOD_NOT_SUPPORTED; + else + retval = OSC_METHOD_RUN_FAILURE; + } + + return retval; +} + diff --git a/drivers/pci/pcie/aer/aerdrv_core.c b/drivers/pci/pcie/aer/aerdrv_core.c new file mode 100644 index 000000000000..5591043acea7 --- /dev/null +++ b/drivers/pci/pcie/aer/aerdrv_core.c @@ -0,0 +1,757 @@ +/* + * drivers/pci/pcie/aer/aerdrv_core.c + * + * 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 implements the core part of PCI-Express AER. When an pci-express + * error is delivered, an error message will be collected and printed to + * console, then, an error recovery procedure will be executed by following + * the pci error recovery rules. + * + * Copyright (C) 2006 Intel Corp. + * Tom Long Nguyen (tom.l.nguyen@intel.com) + * Zhang Yanmin (yanmin.zhang@intel.com) + * + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "aerdrv.h" + +static int forceload; +module_param(forceload, bool, 0); + +#define PCI_CFG_SPACE_SIZE (0x100) +int pci_find_aer_capability(struct pci_dev *dev) +{ + int pos; + u32 reg32 = 0; + + /* Check if it's a pci-express device */ + pos = pci_find_capability(dev, PCI_CAP_ID_EXP); + if (!pos) + return 0; + + /* Check if it supports pci-express AER */ + pos = PCI_CFG_SPACE_SIZE; + while (pos) { + if (pci_read_config_dword(dev, pos, ®32)) + return 0; + + /* some broken boards return ~0 */ + if (reg32 == 0xffffffff) + return 0; + + if (PCI_EXT_CAP_ID(reg32) == PCI_EXT_CAP_ID_ERR) + break; + + pos = reg32 >> 20; + } + + return pos; +} + +int pci_enable_pcie_error_reporting(struct pci_dev *dev) +{ + u16 reg16 = 0; + int pos; + + pos = pci_find_capability(dev, PCI_CAP_ID_EXP); + if (!pos) + return -EIO; + + pci_read_config_word(dev, pos+PCI_EXP_DEVCTL, ®16); + reg16 = reg16 | + PCI_EXP_DEVCTL_CERE | + PCI_EXP_DEVCTL_NFERE | + PCI_EXP_DEVCTL_FERE | + PCI_EXP_DEVCTL_URRE; + pci_write_config_word(dev, pos+PCI_EXP_DEVCTL, + reg16); + return 0; +} + +int pci_disable_pcie_error_reporting(struct pci_dev *dev) +{ + u16 reg16 = 0; + int pos; + + pos = pci_find_capability(dev, PCI_CAP_ID_EXP); + if (!pos) + return -EIO; + + pci_read_config_word(dev, pos+PCI_EXP_DEVCTL, ®16); + reg16 = reg16 & ~(PCI_EXP_DEVCTL_CERE | + PCI_EXP_DEVCTL_NFERE | + PCI_EXP_DEVCTL_FERE | + PCI_EXP_DEVCTL_URRE); + pci_write_config_word(dev, pos+PCI_EXP_DEVCTL, + reg16); + return 0; +} + +int pci_cleanup_aer_uncorrect_error_status(struct pci_dev *dev) +{ + int pos; + u32 status, mask; + + pos = pci_find_aer_capability(dev); + if (!pos) + return -EIO; + + pci_read_config_dword(dev, pos + PCI_ERR_UNCOR_STATUS, &status); + pci_read_config_dword(dev, pos + PCI_ERR_UNCOR_SEVER, &mask); + if (dev->error_state == pci_channel_io_normal) + status &= ~mask; /* Clear corresponding nonfatal bits */ + else + status &= mask; /* Clear corresponding fatal bits */ + pci_write_config_dword(dev, pos + PCI_ERR_UNCOR_STATUS, status); + + return 0; +} + +static int find_device_iter(struct device *device, void *data) +{ + struct pci_dev *dev; + u16 id = *(unsigned long *)data; + u8 secondary, subordinate, d_bus = id >> 8; + + if (device->bus == &pci_bus_type) { + dev = to_pci_dev(device); + if (id == ((dev->bus->number << 8) | dev->devfn)) { + /* + * Device ID match + */ + *(unsigned long*)data = (unsigned long)device; + return 1; + } + + /* + * If device is P2P, check if it is an upstream? + */ + if (dev->hdr_type & PCI_HEADER_TYPE_BRIDGE) { + pci_read_config_byte(dev, PCI_SECONDARY_BUS, + &secondary); + pci_read_config_byte(dev, PCI_SUBORDINATE_BUS, + &subordinate); + if (d_bus >= secondary && d_bus <= subordinate) { + *(unsigned long*)data = (unsigned long)device; + return 1; + } + } + } + + return 0; +} + +/** + * find_source_device - search through device hierarchy for source device + * @p_dev: pointer to Root Port pci_dev data structure + * @id: device ID of agent who sends an error message to this Root Port + * + * Invoked when error is detected at the Root Port. + **/ +static struct device* find_source_device(struct pci_dev *parent, u16 id) +{ + struct pci_dev *dev = parent; + struct device *device; + unsigned long device_addr; + int status; + + /* Is Root Port an agent that sends error message? */ + if (id == ((dev->bus->number << 8) | dev->devfn)) + return &dev->dev; + + do { + device_addr = id; + if ((status = device_for_each_child(&dev->dev, + &device_addr, find_device_iter))) { + device = (struct device*)device_addr; + dev = to_pci_dev(device); + if (id == ((dev->bus->number << 8) | dev->devfn)) + return device; + } + }while (status); + + return NULL; +} + +static void report_error_detected(struct pci_dev *dev, void *data) +{ + pci_ers_result_t vote; + struct pci_error_handlers *err_handler; + struct aer_broadcast_data *result_data; + result_data = (struct aer_broadcast_data *) data; + + dev->error_state = result_data->state; + + if (!dev->driver || + !dev->driver->err_handler || + !dev->driver->err_handler->error_detected) { + if (result_data->state == pci_channel_io_frozen && + !(dev->hdr_type & PCI_HEADER_TYPE_BRIDGE)) { + /* + * In case of fatal recovery, if one of down- + * stream device has no driver. We might be + * unable to recover because a later insmod + * of a driver for this device is unaware of + * its hw state. + */ + printk(KERN_DEBUG "Device ID[%s] has %s\n", + dev->dev.bus_id, (dev->driver) ? + "no AER-aware driver" : "no driver"); + } + return; + } + + err_handler = dev->driver->err_handler; + vote = err_handler->error_detected(dev, result_data->state); + result_data->result = merge_result(result_data->result, vote); + return; +} + +static void report_mmio_enabled(struct pci_dev *dev, void *data) +{ + pci_ers_result_t vote; + struct pci_error_handlers *err_handler; + struct aer_broadcast_data *result_data; + result_data = (struct aer_broadcast_data *) data; + + if (!dev->driver || + !dev->driver->err_handler || + !dev->driver->err_handler->mmio_enabled) + return; + + err_handler = dev->driver->err_handler; + vote = err_handler->mmio_enabled(dev); + result_data->result = merge_result(result_data->result, vote); + return; +} + +static void report_slot_reset(struct pci_dev *dev, void *data) +{ + pci_ers_result_t vote; + struct pci_error_handlers *err_handler; + struct aer_broadcast_data *result_data; + result_data = (struct aer_broadcast_data *) data; + + if (!dev->driver || + !dev->driver->err_handler || + !dev->driver->err_handler->slot_reset) + return; + + err_handler = dev->driver->err_handler; + vote = err_handler->slot_reset(dev); + result_data->result = merge_result(result_data->result, vote); + return; +} + +static void report_resume(struct pci_dev *dev, void *data) +{ + struct pci_error_handlers *err_handler; + + dev->error_state = pci_channel_io_normal; + + if (!dev->driver || + !dev->driver->err_handler || + !dev->driver->err_handler->slot_reset) + return; + + err_handler = dev->driver->err_handler; + err_handler->resume(dev); + return; +} + +/** + * broadcast_error_message - handle message broadcast to downstream drivers + * @device: pointer to from where in a hierarchy message is broadcasted down + * @api: callback to be broadcasted + * @state: error state + * + * Invoked during error recovery process. Once being invoked, the content + * of error severity will be broadcasted to all downstream drivers in a + * hierarchy in question. + **/ +static pci_ers_result_t broadcast_error_message(struct pci_dev *dev, + enum pci_channel_state state, + char *error_mesg, + void (*cb)(struct pci_dev *, void *)) +{ + struct aer_broadcast_data result_data; + + printk(KERN_DEBUG "Broadcast %s message\n", error_mesg); + result_data.state = state; + if (cb == report_error_detected) + result_data.result = PCI_ERS_RESULT_CAN_RECOVER; + else + result_data.result = PCI_ERS_RESULT_RECOVERED; + + if (dev->hdr_type & PCI_HEADER_TYPE_BRIDGE) { + /* + * If the error is reported by a bridge, we think this error + * is related to the downstream link of the bridge, so we + * do error recovery on all subordinates of the bridge instead + * of the bridge and clear the error status of the bridge. + */ + if (cb == report_error_detected) + dev->error_state = state; + pci_walk_bus(dev->subordinate, cb, &result_data); + if (cb == report_resume) { + pci_cleanup_aer_uncorrect_error_status(dev); + dev->error_state = pci_channel_io_normal; + } + } + else { + /* + * If the error is reported by an end point, we think this + * error is related to the upstream link of the end point. + */ + pci_walk_bus(dev->bus, cb, &result_data); + } + + return result_data.result; +} + +struct find_aer_service_data { + struct pcie_port_service_driver *aer_driver; + int is_downstream; +}; + +static int find_aer_service_iter(struct device *device, void *data) +{ + struct device_driver *driver; + struct pcie_port_service_driver *service_driver; + struct pcie_device *pcie_dev; + struct find_aer_service_data *result; + + result = (struct find_aer_service_data *) data; + + if (device->bus == &pcie_port_bus_type) { + pcie_dev = to_pcie_device(device); + if (pcie_dev->id.port_type == PCIE_SW_DOWNSTREAM_PORT) + result->is_downstream = 1; + + driver = device->driver; + if (driver) { + service_driver = to_service_driver(driver); + if (service_driver->id_table->service_type == + PCIE_PORT_SERVICE_AER) { + result->aer_driver = service_driver; + return 1; + } + } + } + + return 0; +} + +static void find_aer_service(struct pci_dev *dev, + struct find_aer_service_data *data) +{ + device_for_each_child(&dev->dev, data, find_aer_service_iter); +} + +static pci_ers_result_t reset_link(struct pcie_device *aerdev, + struct pci_dev *dev) +{ + struct pci_dev *udev; + pci_ers_result_t status; + struct find_aer_service_data data; + + if (dev->hdr_type & PCI_HEADER_TYPE_BRIDGE) + udev = dev; + else + udev= dev->bus->self; + + data.is_downstream = 0; + data.aer_driver = NULL; + find_aer_service(udev, &data); + + /* + * Use the aer driver of the error agent firstly. + * If it hasn't the aer driver, use the root port's + */ + if (!data.aer_driver || !data.aer_driver->reset_link) { + if (data.is_downstream && + aerdev->device.driver && + to_service_driver(aerdev->device.driver)->reset_link) { + data.aer_driver = + to_service_driver(aerdev->device.driver); + } else { + printk(KERN_DEBUG "No link-reset support to Device ID" + "[%s]\n", + dev->dev.bus_id); + return PCI_ERS_RESULT_DISCONNECT; + } + } + + status = data.aer_driver->reset_link(udev); + if (status != PCI_ERS_RESULT_RECOVERED) { + printk(KERN_DEBUG "Link reset at upstream Device ID" + "[%s] failed\n", + udev->dev.bus_id); + return PCI_ERS_RESULT_DISCONNECT; + } + + return status; +} + +/** + * do_recovery - handle nonfatal/fatal error recovery process + * @aerdev: pointer to a pcie_device data structure of root port + * @dev: pointer to a pci_dev data structure of agent detecting an error + * @severity: error severity type + * + * Invoked when an error is nonfatal/fatal. Once being invoked, broadcast + * error detected message to all downstream drivers within a hierarchy in + * question and return the returned code. + **/ +static pci_ers_result_t do_recovery(struct pcie_device *aerdev, + struct pci_dev *dev, + int severity) +{ + pci_ers_result_t status, result = PCI_ERS_RESULT_RECOVERED; + enum pci_channel_state state; + + if (severity == AER_FATAL) + state = pci_channel_io_frozen; + else + state = pci_channel_io_normal; + + status = broadcast_error_message(dev, + state, + "error_detected", + report_error_detected); + + if (severity == AER_FATAL) { + result = reset_link(aerdev, dev); + if (result != PCI_ERS_RESULT_RECOVERED) { + /* TODO: Should panic here? */ + return result; + } + } + + if (status == PCI_ERS_RESULT_CAN_RECOVER) + status = broadcast_error_message(dev, + state, + "mmio_enabled", + report_mmio_enabled); + + if (status == PCI_ERS_RESULT_NEED_RESET) { + /* + * TODO: Should call platform-specific + * functions to reset slot before calling + * drivers' slot_reset callbacks? + */ + status = broadcast_error_message(dev, + state, + "slot_reset", + report_slot_reset); + } + + if (status == PCI_ERS_RESULT_RECOVERED) + broadcast_error_message(dev, + state, + "resume", + report_resume); + + return status; +} + +/** + * handle_error_source - handle logging error into an event log + * @aerdev: pointer to pcie_device data structure of the root port + * @dev: pointer to pci_dev data structure of error source device + * @info: comprehensive error information + * + * Invoked when an error being detected by Root Port. + **/ +static void handle_error_source(struct pcie_device * aerdev, + struct pci_dev *dev, + struct aer_err_info info) +{ + pci_ers_result_t status = 0; + int pos; + + if (info.severity == AER_CORRECTABLE) { + /* + * Correctable error does not need software intevention. + * No need to go through error recovery process. + */ + pos = pci_find_aer_capability(dev); + if (pos) + pci_write_config_dword(dev, pos + PCI_ERR_COR_STATUS, + info.status); + } else { + status = do_recovery(aerdev, dev, info.severity); + if (status == PCI_ERS_RESULT_RECOVERED) { + printk(KERN_DEBUG "AER driver successfully recovered\n"); + } else { + /* TODO: Should kernel panic here? */ + printk(KERN_DEBUG "AER driver didn't recover\n"); + } + } +} + +/** + * aer_enable_rootport - enable Root Port's interrupts when receiving messages + * @rpc: pointer to a Root Port data structure + * + * Invoked when PCIE bus loads AER service driver. + **/ +void aer_enable_rootport(struct aer_rpc *rpc) +{ + struct pci_dev *pdev = rpc->rpd->port; + int pos, aer_pos; + u16 reg16; + u32 reg32; + + pos = pci_find_capability(pdev, PCI_CAP_ID_EXP); + /* Clear PCIE Capability's Device Status */ + pci_read_config_word(pdev, pos+PCI_EXP_DEVSTA, ®16); + pci_write_config_word(pdev, pos+PCI_EXP_DEVSTA, reg16); + + /* Disable system error generation in response to error messages */ + pci_read_config_word(pdev, pos + PCI_EXP_RTCTL, ®16); + reg16 &= ~(SYSTEM_ERROR_INTR_ON_MESG_MASK); + pci_write_config_word(pdev, pos + PCI_EXP_RTCTL, reg16); + + aer_pos = pci_find_aer_capability(pdev); + /* Clear error status */ + pci_read_config_dword(pdev, aer_pos + PCI_ERR_ROOT_STATUS, ®32); + pci_write_config_dword(pdev, aer_pos + PCI_ERR_ROOT_STATUS, reg32); + pci_read_config_dword(pdev, aer_pos + PCI_ERR_COR_STATUS, ®32); + pci_write_config_dword(pdev, aer_pos + PCI_ERR_COR_STATUS, reg32); + pci_read_config_dword(pdev, aer_pos + PCI_ERR_UNCOR_STATUS, ®32); + pci_write_config_dword(pdev, aer_pos + PCI_ERR_UNCOR_STATUS, reg32); + + /* Enable Root Port device reporting error itself */ + pci_read_config_word(pdev, pos+PCI_EXP_DEVCTL, ®16); + reg16 = reg16 | + PCI_EXP_DEVCTL_CERE | + PCI_EXP_DEVCTL_NFERE | + PCI_EXP_DEVCTL_FERE | + PCI_EXP_DEVCTL_URRE; + pci_write_config_word(pdev, pos+PCI_EXP_DEVCTL, + reg16); + + /* Enable Root Port's interrupt in response to error messages */ + pci_write_config_dword(pdev, + aer_pos + PCI_ERR_ROOT_COMMAND, + ROOT_PORT_INTR_ON_MESG_MASK); +} + +/** + * disable_root_aer - disable Root Port's interrupts when receiving messages + * @rpc: pointer to a Root Port data structure + * + * Invoked when PCIE bus unloads AER service driver. + **/ +static void disable_root_aer(struct aer_rpc *rpc) +{ + struct pci_dev *pdev = rpc->rpd->port; + u32 reg32; + int pos; + + pos = pci_find_aer_capability(pdev); + /* Disable Root's interrupt in response to error messages */ + pci_write_config_dword(pdev, pos + PCI_ERR_ROOT_COMMAND, 0); + + /* Clear Root's error status reg */ + pci_read_config_dword(pdev, pos + PCI_ERR_ROOT_STATUS, ®32); + pci_write_config_dword(pdev, pos + PCI_ERR_ROOT_STATUS, reg32); +} + +/** + * get_e_source - retrieve an error source + * @rpc: pointer to the root port which holds an error + * + * Invoked by DPC handler to consume an error. + **/ +static struct aer_err_source* get_e_source(struct aer_rpc *rpc) +{ + struct aer_err_source *e_source; + unsigned long flags; + + /* Lock access to Root error producer/consumer index */ + spin_lock_irqsave(&rpc->e_lock, flags); + if (rpc->prod_idx == rpc->cons_idx) { + spin_unlock_irqrestore(&rpc->e_lock, flags); + return NULL; + } + e_source = &rpc->e_sources[rpc->cons_idx]; + rpc->cons_idx++; + if (rpc->cons_idx == AER_ERROR_SOURCES_MAX) + rpc->cons_idx = 0; + spin_unlock_irqrestore(&rpc->e_lock, flags); + + return e_source; +} + +static int get_device_error_info(struct pci_dev *dev, struct aer_err_info *info) +{ + int pos; + + pos = pci_find_aer_capability(dev); + + /* The device might not support AER */ + if (!pos) + return AER_SUCCESS; + + if (info->severity == AER_CORRECTABLE) { + pci_read_config_dword(dev, pos + PCI_ERR_COR_STATUS, + &info->status); + if (!(info->status & ERR_CORRECTABLE_ERROR_MASK)) + return AER_UNSUCCESS; + } else if (dev->hdr_type & PCI_HEADER_TYPE_BRIDGE || + info->severity == AER_NONFATAL) { + + /* Link is still healthy for IO reads */ + pci_read_config_dword(dev, pos + PCI_ERR_UNCOR_STATUS, + &info->status); + if (!(info->status & ERR_UNCORRECTABLE_ERROR_MASK)) + return AER_UNSUCCESS; + + if (info->status & AER_LOG_TLP_MASKS) { + info->flags |= AER_TLP_HEADER_VALID_FLAG; + pci_read_config_dword(dev, + pos + PCI_ERR_HEADER_LOG, &info->tlp.dw0); + pci_read_config_dword(dev, + pos + PCI_ERR_HEADER_LOG + 4, &info->tlp.dw1); + pci_read_config_dword(dev, + pos + PCI_ERR_HEADER_LOG + 8, &info->tlp.dw2); + pci_read_config_dword(dev, + pos + PCI_ERR_HEADER_LOG + 12, &info->tlp.dw3); + } + } + + return AER_SUCCESS; +} + +/** + * aer_isr_one_error - consume an error detected by root port + * @p_device: pointer to error root port service device + * @e_src: pointer to an error source + **/ +static void aer_isr_one_error(struct pcie_device *p_device, + struct aer_err_source *e_src) +{ + struct device *s_device; + struct aer_err_info e_info = {0, 0, 0,}; + int i; + u16 id; + + /* + * There is a possibility that both correctable error and + * uncorrectable error being logged. Report correctable error first. + */ + for (i = 1; i & ROOT_ERR_STATUS_MASKS ; i <<= 2) { + if (i > 4) + break; + if (!(e_src->status & i)) + continue; + + /* Init comprehensive error information */ + if (i & PCI_ERR_ROOT_COR_RCV) { + id = ERR_COR_ID(e_src->id); + e_info.severity = AER_CORRECTABLE; + } else { + id = ERR_UNCOR_ID(e_src->id); + e_info.severity = ((e_src->status >> 6) & 1); + } + if (e_src->status & + (PCI_ERR_ROOT_MULTI_COR_RCV | + PCI_ERR_ROOT_MULTI_UNCOR_RCV)) + e_info.flags |= AER_MULTI_ERROR_VALID_FLAG; + if (!(s_device = find_source_device(p_device->port, id))) { + printk(KERN_DEBUG "%s->can't find device of ID%04x\n", + __FUNCTION__, id); + continue; + } + if (get_device_error_info(to_pci_dev(s_device), &e_info) == + AER_SUCCESS) { + aer_print_error(to_pci_dev(s_device), &e_info); + handle_error_source(p_device, + to_pci_dev(s_device), + e_info); + } + } +} + +/** + * aer_isr - consume errors detected by root port + * @context: pointer to a private data of pcie device + * + * Invoked, as DPC, when root port records new detected error + **/ +void aer_isr(void *context) +{ + struct pcie_device *p_device = (struct pcie_device *) context; + struct aer_rpc *rpc = get_service_data(p_device); + struct aer_err_source *e_src; + + mutex_lock(&rpc->rpc_mutex); + e_src = get_e_source(rpc); + while (e_src) { + aer_isr_one_error(p_device, e_src); + e_src = get_e_source(rpc); + } + mutex_unlock(&rpc->rpc_mutex); + + wake_up(&rpc->wait_release); +} + +/** + * aer_delete_rootport - disable root port aer and delete service data + * @rpc: pointer to a root port device being deleted + * + * Invoked when AER service unloaded on a specific Root Port + **/ +void aer_delete_rootport(struct aer_rpc *rpc) +{ + /* Disable root port AER itself */ + disable_root_aer(rpc); + + kfree(rpc); +} + +/** + * aer_init - provide AER initialization + * @dev: pointer to AER pcie device + * + * Invoked when AER service driver is loaded. + **/ +int aer_init(struct pcie_device *dev) +{ + int status; + + /* Run _OSC Method */ + status = aer_osc_setup(dev->port); + + if(status != OSC_METHOD_RUN_SUCCESS) { + printk(KERN_DEBUG "%s: AER service init fails - %s\n", + __FUNCTION__, + (status == OSC_METHOD_NOT_SUPPORTED) ? + "No ACPI _OSC support" : "Run ACPI _OSC fails"); + + if (!forceload) + return status; + } + + return AER_SUCCESS; +} + +EXPORT_SYMBOL_GPL(pci_find_aer_capability); +EXPORT_SYMBOL_GPL(pci_enable_pcie_error_reporting); +EXPORT_SYMBOL_GPL(pci_disable_pcie_error_reporting); +EXPORT_SYMBOL_GPL(pci_cleanup_aer_uncorrect_error_status); + diff --git a/drivers/pci/pcie/aer/aerdrv_errprint.c b/drivers/pci/pcie/aer/aerdrv_errprint.c new file mode 100644 index 000000000000..3933d4f30e8c --- /dev/null +++ b/drivers/pci/pcie/aer/aerdrv_errprint.c @@ -0,0 +1,248 @@ +/* + * drivers/pci/pcie/aer/aerdrv_errprint.c + * + * 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. + * + * Format error messages and print them to console. + * + * Copyright (C) 2006 Intel Corp. + * Tom Long Nguyen (tom.l.nguyen@intel.com) + * Zhang Yanmin (yanmin.zhang@intel.com) + * + */ + +#include +#include +#include +#include +#include +#include + +#include "aerdrv.h" + +#define AER_AGENT_RECEIVER 0 +#define AER_AGENT_REQUESTER 1 +#define AER_AGENT_COMPLETER 2 +#define AER_AGENT_TRANSMITTER 3 + +#define AER_AGENT_REQUESTER_MASK (PCI_ERR_UNC_COMP_TIME| \ + PCI_ERR_UNC_UNSUP) + +#define AER_AGENT_COMPLETER_MASK PCI_ERR_UNC_COMP_ABORT + +#define AER_AGENT_TRANSMITTER_MASK(t, e) (e & (PCI_ERR_COR_REP_ROLL| \ + ((t == AER_CORRECTABLE) ? PCI_ERR_COR_REP_TIMER: 0))) + +#define AER_GET_AGENT(t, e) \ + ((e & AER_AGENT_COMPLETER_MASK) ? AER_AGENT_COMPLETER : \ + (e & AER_AGENT_REQUESTER_MASK) ? AER_AGENT_REQUESTER : \ + (AER_AGENT_TRANSMITTER_MASK(t, e)) ? AER_AGENT_TRANSMITTER : \ + AER_AGENT_RECEIVER) + +#define AER_PHYSICAL_LAYER_ERROR_MASK PCI_ERR_COR_RCVR +#define AER_DATA_LINK_LAYER_ERROR_MASK(t, e) \ + (PCI_ERR_UNC_DLP| \ + PCI_ERR_COR_BAD_TLP| \ + PCI_ERR_COR_BAD_DLLP| \ + PCI_ERR_COR_REP_ROLL| \ + ((t == AER_CORRECTABLE) ? \ + PCI_ERR_COR_REP_TIMER: 0)) + +#define AER_PHYSICAL_LAYER_ERROR 0 +#define AER_DATA_LINK_LAYER_ERROR 1 +#define AER_TRANSACTION_LAYER_ERROR 2 + +#define AER_GET_LAYER_ERROR(t, e) \ + ((e & AER_PHYSICAL_LAYER_ERROR_MASK) ? \ + AER_PHYSICAL_LAYER_ERROR : \ + (e & AER_DATA_LINK_LAYER_ERROR_MASK(t, e)) ? \ + AER_DATA_LINK_LAYER_ERROR : \ + AER_TRANSACTION_LAYER_ERROR) + +/* + * AER error strings + */ +static char* aer_error_severity_string[] = { + "Uncorrected (Non-Fatal)", + "Uncorrected (Fatal)", + "Corrected" +}; + +static char* aer_error_layer[] = { + "Physical Layer", + "Data Link Layer", + "Transaction Layer" +}; +static char* aer_correctable_error_string[] = { + "Receiver Error ", /* Bit Position 0 */ + NULL, + NULL, + NULL, + NULL, + NULL, + "Bad TLP ", /* Bit Position 6 */ + "Bad DLLP ", /* Bit Position 7 */ + "RELAY_NUM Rollover ", /* Bit Position 8 */ + NULL, + NULL, + NULL, + "Replay Timer Timeout ", /* Bit Position 12 */ + "Advisory Non-Fatal ", /* Bit Position 13 */ + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, +}; + +static char* aer_uncorrectable_error_string[] = { + NULL, + NULL, + NULL, + NULL, + "Data Link Protocol ", /* Bit Position 4 */ + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + "Poisoned TLP ", /* Bit Position 12 */ + "Flow Control Protocol ", /* Bit Position 13 */ + "Completion Timeout ", /* Bit Position 14 */ + "Completer Abort ", /* Bit Position 15 */ + "Unexpected Completion ", /* Bit Position 16 */ + "Receiver Overflow ", /* Bit Position 17 */ + "Malformed TLP ", /* Bit Position 18 */ + "ECRC ", /* Bit Position 19 */ + "Unsupported Request ", /* Bit Position 20 */ + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, +}; + +static char* aer_agent_string[] = { + "Receiver ID", + "Requester ID", + "Completer ID", + "Transmitter ID" +}; + +static char * aer_get_error_source_name(int severity, + unsigned int status, + char errmsg_buff[]) +{ + int i; + char * errmsg = NULL; + + for (i = 0; i < 32; i++) { + if (!(status & (1 << i))) + continue; + + if (severity == AER_CORRECTABLE) + errmsg = aer_correctable_error_string[i]; + else + errmsg = aer_uncorrectable_error_string[i]; + + if (!errmsg) { + sprintf(errmsg_buff, "Unknown Error Bit %2d ", i); + errmsg = errmsg_buff; + } + + break; + } + + return errmsg; +} + +static DEFINE_SPINLOCK(logbuf_lock); +static char errmsg_buff[100]; +void aer_print_error(struct pci_dev *dev, struct aer_err_info *info) +{ + char * errmsg; + int err_layer, agent; + char * loglevel; + + if (info->severity == AER_CORRECTABLE) + loglevel = KERN_WARNING; + else + loglevel = KERN_ERR; + + printk("%s+------ PCI-Express Device Error ------+\n", loglevel); + printk("%sError Severity\t\t: %s\n", loglevel, + aer_error_severity_string[info->severity]); + + if ( info->status == 0) { + printk("%sPCIE Bus Error type\t: (Unaccessible)\n", loglevel); + printk("%sUnaccessible Received\t: %s\n", loglevel, + info->flags & AER_MULTI_ERROR_VALID_FLAG ? + "Multiple" : "First"); + printk("%sUnregistered Agent ID\t: %04x\n", loglevel, + (dev->bus->number << 8) | dev->devfn); + } else { + err_layer = AER_GET_LAYER_ERROR(info->severity, info->status); + printk("%sPCIE Bus Error type\t: %s\n", loglevel, + aer_error_layer[err_layer]); + + spin_lock(&logbuf_lock); + errmsg = aer_get_error_source_name(info->severity, + info->status, + errmsg_buff); + printk("%s%s\t: %s\n", loglevel, errmsg, + info->flags & AER_MULTI_ERROR_VALID_FLAG ? + "Multiple" : "First"); + spin_unlock(&logbuf_lock); + + agent = AER_GET_AGENT(info->severity, info->status); + printk("%s%s\t\t: %04x\n", loglevel, + aer_agent_string[agent], + (dev->bus->number << 8) | dev->devfn); + + printk("%sVendorID=%04xh, DeviceID=%04xh," + " Bus=%02xh, Device=%02xh, Function=%02xh\n", + loglevel, + dev->vendor, + dev->device, + dev->bus->number, + PCI_SLOT(dev->devfn), + PCI_FUNC(dev->devfn)); + + if (info->flags & AER_TLP_HEADER_VALID_FLAG) { + unsigned char *tlp = (unsigned char *) &info->tlp; + printk("%sTLB Header:\n", loglevel); + printk("%s%02x%02x%02x%02x %02x%02x%02x%02x" + " %02x%02x%02x%02x %02x%02x%02x%02x\n", + loglevel, + *(tlp + 3), *(tlp + 2), *(tlp + 1), *tlp, + *(tlp + 7), *(tlp + 6), *(tlp + 5), *(tlp + 4), + *(tlp + 11), *(tlp + 10), *(tlp + 9), + *(tlp + 8), *(tlp + 15), *(tlp + 14), + *(tlp + 13), *(tlp + 12)); + } + } +} + diff --git a/include/linux/aer.h b/include/linux/aer.h new file mode 100644 index 000000000000..402e178b38eb --- /dev/null +++ b/include/linux/aer.h @@ -0,0 +1,24 @@ +/* + * Copyright (C) 2006 Intel Corp. + * Tom Long Nguyen (tom.l.nguyen@intel.com) + * Zhang Yanmin (yanmin.zhang@intel.com) + */ + +#ifndef _AER_H_ +#define _AER_H_ + +#if defined(CONFIG_PCIEAER) +/* pci-e port driver needs this function to enable aer */ +extern int pci_enable_pcie_error_reporting(struct pci_dev *dev); +extern int pci_find_aer_capability(struct pci_dev *dev); +extern int pci_disable_pcie_error_reporting(struct pci_dev *dev); +extern int pci_cleanup_aer_uncorrect_error_status(struct pci_dev *dev); +#else +#define pci_enable_pcie_error_reporting(dev) do { } while (0) +#define pci_find_aer_capability(dev) do { } while (0) +#define pci_disable_pcie_error_reporting(dev) do { } while (0) +#define pci_cleanup_aer_uncorrect_error_status(dev) do { } while (0) +#endif + +#endif //_AER_H_ + diff --git a/include/linux/pcieport_if.h b/include/linux/pcieport_if.h index b44e01a70914..6cd91e3f9820 100644 --- a/include/linux/pcieport_if.h +++ b/include/linux/pcieport_if.h @@ -62,6 +62,12 @@ struct pcie_port_service_driver { int (*suspend) (struct pcie_device *dev, pm_message_t state); int (*resume) (struct pcie_device *dev); + /* Service Error Recovery Handler */ + struct pci_error_handlers *err_handler; + + /* Link Reset Capability - AER service driver specific */ + pci_ers_result_t (*reset_link) (struct pci_dev *dev); + const struct pcie_port_service_id *id_table; struct device_driver driver; }; -- cgit v1.2.3 From b19441af185559118e8247382ea4f2f76ebffc6d Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Mon, 28 Aug 2006 11:43:25 -0700 Subject: PCI: fix __must_check warnings Signed-off-by: Greg Kroah-Hartman --- drivers/pci/bus.c | 22 ++++++-- drivers/pci/hotplug/fakephp.c | 18 ++++-- drivers/pci/pci-driver.c | 5 +- drivers/pci/pci-sysfs.c | 112 ++++++++++++++++++++++++------------- drivers/pci/pcie/aer/aerdrv_core.c | 3 +- drivers/pci/pcie/portdrv_core.c | 6 +- drivers/pci/pcie/portdrv_pci.c | 16 ++++-- drivers/pci/probe.c | 16 +++++- include/linux/pci.h | 2 +- 9 files changed, 138 insertions(+), 62 deletions(-) (limited to 'include') diff --git a/drivers/pci/bus.c b/drivers/pci/bus.c index 5f7db9d2436e..aadaa3c8096b 100644 --- a/drivers/pci/bus.c +++ b/drivers/pci/bus.c @@ -77,9 +77,12 @@ pci_bus_alloc_resource(struct pci_bus *bus, struct resource *res, * This adds a single pci device to the global * device list and adds sysfs and procfs entries */ -void __devinit pci_bus_add_device(struct pci_dev *dev) +int __devinit pci_bus_add_device(struct pci_dev *dev) { - device_add(&dev->dev); + int retval; + retval = device_add(&dev->dev); + if (retval) + return retval; down_write(&pci_bus_sem); list_add_tail(&dev->global_list, &pci_devices); @@ -87,6 +90,7 @@ void __devinit pci_bus_add_device(struct pci_dev *dev) pci_proc_attach_device(dev); pci_create_sysfs_dev_files(dev); + return 0; } /** @@ -104,6 +108,7 @@ void __devinit pci_bus_add_device(struct pci_dev *dev) void __devinit pci_bus_add_devices(struct pci_bus *bus) { struct pci_dev *dev; + int retval; list_for_each_entry(dev, &bus->devices, bus_list) { /* @@ -112,7 +117,9 @@ void __devinit pci_bus_add_devices(struct pci_bus *bus) */ if (!list_empty(&dev->global_list)) continue; - pci_bus_add_device(dev); + retval = pci_bus_add_device(dev); + if (retval) + dev_err(&dev->dev, "Error adding device, continuing\n"); } list_for_each_entry(dev, &bus->devices, bus_list) { @@ -129,10 +136,13 @@ void __devinit pci_bus_add_devices(struct pci_bus *bus) list_add_tail(&dev->subordinate->node, &dev->bus->children); up_write(&pci_bus_sem); - } + } pci_bus_add_devices(dev->subordinate); - - sysfs_create_link(&dev->subordinate->class_dev.kobj, &dev->dev.kobj, "bridge"); + retval = sysfs_create_link(&dev->subordinate->class_dev.kobj, + &dev->dev.kobj, "bridge"); + if (retval) + dev_err(&dev->dev, "Error creating sysfs " + "bridge symlink, continuing...\n"); } } } diff --git a/drivers/pci/hotplug/fakephp.c b/drivers/pci/hotplug/fakephp.c index dd2b762777c4..05a4f0f90186 100644 --- a/drivers/pci/hotplug/fakephp.c +++ b/drivers/pci/hotplug/fakephp.c @@ -176,7 +176,9 @@ static void pci_rescan_slot(struct pci_dev *temp) struct pci_bus *bus = temp->bus; struct pci_dev *dev; int func; + int retval; u8 hdr_type; + if (!pci_read_config_byte(temp, PCI_HEADER_TYPE, &hdr_type)) { temp->hdr_type = hdr_type & 0x7f; if (!pci_find_slot(bus->number, temp->devfn)) { @@ -185,8 +187,12 @@ static void pci_rescan_slot(struct pci_dev *temp) dbg("New device on %s function %x:%x\n", bus->name, temp->devfn >> 3, temp->devfn & 7); - pci_bus_add_device(dev); - add_slot(dev); + retval = pci_bus_add_device(dev); + if (retval) + dev_err(&dev->dev, "error adding " + "device, continuing.\n"); + else + add_slot(dev); } } /* multifunction device? */ @@ -205,8 +211,12 @@ static void pci_rescan_slot(struct pci_dev *temp) dbg("New device on %s function %x:%x\n", bus->name, temp->devfn >> 3, temp->devfn & 7); - pci_bus_add_device(dev); - add_slot(dev); + retval = pci_bus_add_device(dev); + if (retval) + dev_err(&dev->dev, "error adding " + "device, continuing.\n"); + else + add_slot(dev); } } } diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c index d8ace1f90dd2..309629e03bae 100644 --- a/drivers/pci/pci-driver.c +++ b/drivers/pci/pci-driver.c @@ -56,6 +56,7 @@ store_new_id(struct device_driver *driver, const char *buf, size_t count) subdevice=PCI_ANY_ID, class=0, class_mask=0; unsigned long driver_data=0; int fields=0; + int retval = 0; fields = sscanf(buf, "%x %x %x %x %x %x %lux", &vendor, &device, &subvendor, &subdevice, @@ -82,10 +83,12 @@ store_new_id(struct device_driver *driver, const char *buf, size_t count) spin_unlock(&pdrv->dynids.lock); if (get_driver(&pdrv->driver)) { - driver_attach(&pdrv->driver); + retval = driver_attach(&pdrv->driver); put_driver(&pdrv->driver); } + if (retval) + return retval; return count; } static DRIVER_ATTR(new_id, S_IWUSR, NULL, store_new_id); diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c index 010e01c4bd43..a1d2e979b17f 100644 --- a/drivers/pci/pci-sysfs.c +++ b/drivers/pci/pci-sysfs.c @@ -117,6 +117,7 @@ is_enabled_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct pci_dev *pdev = to_pci_dev(dev); + int retval = 0; /* this can crash the machine when done on the "wrong" device */ if (!capable(CAP_SYS_ADMIN)) @@ -126,8 +127,10 @@ is_enabled_store(struct device *dev, struct device_attribute *attr, pci_disable_device(pdev); if (*buf == '1') - pci_enable_device(pdev); + retval = pci_enable_device(pdev); + if (retval) + return retval; return count; } @@ -425,16 +428,39 @@ pci_mmap_resource(struct kobject *kobj, struct bin_attribute *attr, return pci_mmap_page_range(pdev, vma, mmap_type, 0); } +/** + * pci_remove_resource_files - cleanup resource files + * @dev: dev to cleanup + * + * If we created resource files for @dev, remove them from sysfs and + * free their resources. + */ +static void +pci_remove_resource_files(struct pci_dev *pdev) +{ + int i; + + for (i = 0; i < PCI_ROM_RESOURCE; i++) { + struct bin_attribute *res_attr; + + res_attr = pdev->res_attr[i]; + if (res_attr) { + sysfs_remove_bin_file(&pdev->dev.kobj, res_attr); + kfree(res_attr); + } + } +} + /** * pci_create_resource_files - create resource files in sysfs for @dev * @dev: dev in question * * Walk the resources in @dev creating files for each resource available. */ -static void -pci_create_resource_files(struct pci_dev *pdev) +static int pci_create_resource_files(struct pci_dev *pdev) { int i; + int retval; /* Expose the PCI resources from this device as files */ for (i = 0; i < PCI_ROM_RESOURCE; i++) { @@ -457,35 +483,19 @@ pci_create_resource_files(struct pci_dev *pdev) res_attr->size = pci_resource_len(pdev, i); res_attr->mmap = pci_mmap_resource; res_attr->private = &pdev->resource[i]; - sysfs_create_bin_file(&pdev->dev.kobj, res_attr); - } - } -} - -/** - * pci_remove_resource_files - cleanup resource files - * @dev: dev to cleanup - * - * If we created resource files for @dev, remove them from sysfs and - * free their resources. - */ -static void -pci_remove_resource_files(struct pci_dev *pdev) -{ - int i; - - for (i = 0; i < PCI_ROM_RESOURCE; i++) { - struct bin_attribute *res_attr; - - res_attr = pdev->res_attr[i]; - if (res_attr) { - sysfs_remove_bin_file(&pdev->dev.kobj, res_attr); - kfree(res_attr); + retval = sysfs_create_bin_file(&pdev->dev.kobj, res_attr); + if (retval) { + pci_remove_resource_files(pdev); + return retval; + } + } else { + return -ENOMEM; } } + return 0; } #else /* !HAVE_PCI_MMAP */ -static inline void pci_create_resource_files(struct pci_dev *dev) { return; } +static inline int pci_create_resource_files(struct pci_dev *dev) { return 0; } static inline void pci_remove_resource_files(struct pci_dev *dev) { return; } #endif /* HAVE_PCI_MMAP */ @@ -570,22 +580,27 @@ static struct bin_attribute pcie_config_attr = { .write = pci_write_config, }; -int pci_create_sysfs_dev_files (struct pci_dev *pdev) +int __must_check pci_create_sysfs_dev_files (struct pci_dev *pdev) { + struct bin_attribute *rom_attr = NULL; + int retval; + if (!sysfs_initialized) return -EACCES; if (pdev->cfg_size < 4096) - sysfs_create_bin_file(&pdev->dev.kobj, &pci_config_attr); + retval = sysfs_create_bin_file(&pdev->dev.kobj, &pci_config_attr); else - sysfs_create_bin_file(&pdev->dev.kobj, &pcie_config_attr); + retval = sysfs_create_bin_file(&pdev->dev.kobj, &pcie_config_attr); + if (retval) + goto err; - pci_create_resource_files(pdev); + retval = pci_create_resource_files(pdev); + if (retval) + goto err_bin_file; /* If the device has a ROM, try to expose it in sysfs. */ if (pci_resource_len(pdev, PCI_ROM_RESOURCE)) { - struct bin_attribute *rom_attr; - rom_attr = kzalloc(sizeof(*rom_attr), GFP_ATOMIC); if (rom_attr) { pdev->rom_attr = rom_attr; @@ -595,13 +610,28 @@ int pci_create_sysfs_dev_files (struct pci_dev *pdev) rom_attr->attr.owner = THIS_MODULE; rom_attr->read = pci_read_rom; rom_attr->write = pci_write_rom; - sysfs_create_bin_file(&pdev->dev.kobj, rom_attr); + retval = sysfs_create_bin_file(&pdev->dev.kobj, rom_attr); + if (retval) + goto err_rom; + } else { + retval = -ENOMEM; + goto err_bin_file; } } /* add platform-specific attributes */ pcibios_add_platform_entries(pdev); - + return 0; + +err_rom: + kfree(rom_attr); +err_bin_file: + if (pdev->cfg_size < 4096) + sysfs_remove_bin_file(&pdev->dev.kobj, &pci_config_attr); + else + sysfs_remove_bin_file(&pdev->dev.kobj, &pcie_config_attr); +err: + return retval; } /** @@ -630,10 +660,14 @@ void pci_remove_sysfs_dev_files(struct pci_dev *pdev) static int __init pci_sysfs_init(void) { struct pci_dev *pdev = NULL; - + int retval; + sysfs_initialized = 1; - for_each_pci_dev(pdev) - pci_create_sysfs_dev_files(pdev); + for_each_pci_dev(pdev) { + retval = pci_create_sysfs_dev_files(pdev); + if (retval) + return retval; + } return 0; } diff --git a/drivers/pci/pcie/aer/aerdrv_core.c b/drivers/pci/pcie/aer/aerdrv_core.c index 5591043acea7..1c7e660d6535 100644 --- a/drivers/pci/pcie/aer/aerdrv_core.c +++ b/drivers/pci/pcie/aer/aerdrv_core.c @@ -357,7 +357,8 @@ static int find_aer_service_iter(struct device *device, void *data) static void find_aer_service(struct pci_dev *dev, struct find_aer_service_data *data) { - device_for_each_child(&dev->dev, data, find_aer_service_iter); + int retval; + retval = device_for_each_child(&dev->dev, data, find_aer_service_iter); } static pci_ers_result_t reset_link(struct pcie_device *aerdev, diff --git a/drivers/pci/pcie/portdrv_core.c b/drivers/pci/pcie/portdrv_core.c index cf9e810b4bf8..bd6615b4d40e 100644 --- a/drivers/pci/pcie/portdrv_core.c +++ b/drivers/pci/pcie/portdrv_core.c @@ -340,8 +340,7 @@ static int suspend_iter(struct device *dev, void *data) int pcie_port_device_suspend(struct pci_dev *dev, pm_message_t state) { - device_for_each_child(&dev->dev, &state, suspend_iter); - return 0; + return device_for_each_child(&dev->dev, &state, suspend_iter); } static int resume_iter(struct device *dev, void *data) @@ -359,8 +358,7 @@ static int resume_iter(struct device *dev, void *data) int pcie_port_device_resume(struct pci_dev *dev) { - device_for_each_child(&dev->dev, NULL, resume_iter); - return 0; + return device_for_each_child(&dev->dev, NULL, resume_iter); } #endif diff --git a/drivers/pci/pcie/portdrv_pci.c b/drivers/pci/pcie/portdrv_pci.c index e4a2429986f0..037690e08f5f 100644 --- a/drivers/pci/pcie/portdrv_pci.c +++ b/drivers/pci/pcie/portdrv_pci.c @@ -147,8 +147,10 @@ static pci_ers_result_t pcie_portdrv_error_detected(struct pci_dev *dev, { struct aer_broadcast_data result_data = {error, PCI_ERS_RESULT_CAN_RECOVER}; + int retval; - device_for_each_child(&dev->dev, &result_data, error_detected_iter); + /* can not fail */ + retval = device_for_each_child(&dev->dev, &result_data, error_detected_iter); return result_data.result; } @@ -181,8 +183,10 @@ static int mmio_enabled_iter(struct device *device, void *data) static pci_ers_result_t pcie_portdrv_mmio_enabled(struct pci_dev *dev) { pci_ers_result_t status = PCI_ERS_RESULT_RECOVERED; + int retval; - device_for_each_child(&dev->dev, &status, mmio_enabled_iter); + /* get true return value from &status */ + retval = device_for_each_child(&dev->dev, &status, mmio_enabled_iter); return status; } @@ -214,6 +218,7 @@ static int slot_reset_iter(struct device *device, void *data) static pci_ers_result_t pcie_portdrv_slot_reset(struct pci_dev *dev) { pci_ers_result_t status; + int retval; /* If fatal, restore cfg space for possible link reset at upstream */ if (dev->error_state == pci_channel_io_frozen) { @@ -221,7 +226,8 @@ static pci_ers_result_t pcie_portdrv_slot_reset(struct pci_dev *dev) pci_enable_pcie_error_reporting(dev); } - device_for_each_child(&dev->dev, &status, slot_reset_iter); + /* get true return value from &status */ + retval = device_for_each_child(&dev->dev, &status, slot_reset_iter); return status; } @@ -248,7 +254,9 @@ static int resume_iter(struct device *device, void *data) static void pcie_portdrv_err_resume(struct pci_dev *dev) { - device_for_each_child(&dev->dev, NULL, resume_iter); + int retval; + /* nothing to do with error value, if it ever happens */ + retval = device_for_each_child(&dev->dev, NULL, resume_iter); } /* diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index c5a58d1c6c1c..a3b0a5eb5054 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -339,6 +339,7 @@ pci_alloc_child_bus(struct pci_bus *parent, struct pci_dev *bridge, int busnr) { struct pci_bus *child; int i; + int retval; /* * Allocate a new bus, and inherit stuff from the parent.. @@ -356,8 +357,13 @@ pci_alloc_child_bus(struct pci_bus *parent, struct pci_dev *bridge, int busnr) child->class_dev.class = &pcibus_class; sprintf(child->class_dev.class_id, "%04x:%02x", pci_domain_nr(child), busnr); - class_device_register(&child->class_dev); - class_device_create_file(&child->class_dev, &class_device_attr_cpuaffinity); + retval = class_device_register(&child->class_dev); + if (retval) + goto error_register; + retval = class_device_create_file(&child->class_dev, + &class_device_attr_cpuaffinity); + if (retval) + goto error_file_create; /* * Set up the primary, secondary and subordinate @@ -375,6 +381,12 @@ pci_alloc_child_bus(struct pci_bus *parent, struct pci_dev *bridge, int busnr) bridge->subordinate = child; return child; + +error_file_create: + class_device_unregister(&child->class_dev); +error_register: + kfree(child); + return NULL; } struct pci_bus * __devinit pci_add_new_bus(struct pci_bus *parent, struct pci_dev *dev, int busnr) diff --git a/include/linux/pci.h b/include/linux/pci.h index 3ec72551ac31..c9bb7bee52c7 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -431,7 +431,7 @@ int pci_scan_slot(struct pci_bus *bus, int devfn); struct pci_dev * pci_scan_single_device(struct pci_bus *bus, int devfn); void pci_device_add(struct pci_dev *dev, struct pci_bus *bus); unsigned int pci_scan_child_bus(struct pci_bus *bus); -void pci_bus_add_device(struct pci_dev *dev); +int __must_check pci_bus_add_device(struct pci_dev *dev); void pci_read_bridge_bases(struct pci_bus *child); struct resource *pci_find_parent_resource(const struct pci_dev *dev, struct resource *res); int pci_get_interrupt_pin(struct pci_dev *dev, struct pci_dev **bridge); -- cgit v1.2.3 From 50b0075520a0acba9cabab5203bbce918b966d9a Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Wed, 16 Aug 2006 17:42:18 +0100 Subject: PCI: Multiprobe sanitizer There are numerous drivers that can use multithreaded probing but having some kind of global flag as the way to control this makes migration to threaded probing hard and since it enables it everywhere and is almost as likely to cause serious pain as holding a clog dance in a minefield. If we have a pci_driver multithread_probe flag to inherit you can turn it on for one driver at a time. From playing so far however I think we need a different model at the device layer which serializes until the called probe function says "ok you can start another one now". That would need some kind of flag and semaphore plus a helper function. Anyway in the absence of that this is a starting point to usefully play with this stuff Signed-off-by: Alan Cox Signed-off-by: Greg Kroah-Hartman --- drivers/pci/pci-driver.c | 6 +++++- include/linux/pci.h | 2 ++ 2 files changed, 7 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c index 309629e03bae..b1c0c707d96c 100644 --- a/drivers/pci/pci-driver.c +++ b/drivers/pci/pci-driver.c @@ -421,7 +421,11 @@ int __pci_register_driver(struct pci_driver *drv, struct module *owner) drv->driver.bus = &pci_bus_type; drv->driver.owner = owner; drv->driver.kobj.ktype = &pci_driver_kobj_type; - drv->driver.multithread_probe = pci_multithread_probe; + + if (pci_multithread_probe) + drv->driver.multithread_probe = pci_multithread_probe; + else + drv->driver.multithread_probe = drv->multithread_probe; spin_lock_init(&drv->dynids.lock); INIT_LIST_HEAD(&drv->dynids.list); diff --git a/include/linux/pci.h b/include/linux/pci.h index c9bb7bee52c7..549d8410974b 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -356,6 +356,8 @@ struct pci_driver { struct pci_error_handlers *err_handler; struct device_driver driver; struct pci_dynids dynids; + + int multithread_probe; }; #define to_pci_driver(drv) container_of(drv,struct pci_driver, driver) -- cgit v1.2.3 From 24f8aa9b464b73e0553f092b747770940ee0ea54 Mon Sep 17 00:00:00 2001 From: Satoru Takeuchi Date: Tue, 12 Sep 2006 10:16:36 -0700 Subject: PCI: add pci_stop_bus_device This patch adds pci_stop_bus_device() which stops a PCI device (detach the driver, remove from the global list and so on) and any children. This is needed for ACPI based PCI-to-PCI bridge hot-remove, and it will be also needed for ACPI based PCI root bridge hot-remove. Signed-off-by: Kenji Kaneshige Signed-off-by: MUNEDA Takahiro Signed-off-by: Satoru Takeuchi Signed-off-by: Kristen Carlson Accardi Signed-off-by: Greg Kroah-Hartman --- drivers/pci/remove.c | 37 ++++++++++++++++++++++++++++++++++++- include/linux/pci.h | 1 + 2 files changed, 37 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/drivers/pci/remove.c b/drivers/pci/remove.c index 99ffbd478b29..430281b2e921 100644 --- a/drivers/pci/remove.c +++ b/drivers/pci/remove.c @@ -16,8 +16,11 @@ static void pci_free_resources(struct pci_dev *dev) } } -static void pci_destroy_dev(struct pci_dev *dev) +static void pci_stop_dev(struct pci_dev *dev) { + if (!dev->global_list.next) + return; + if (!list_empty(&dev->global_list)) { pci_proc_detach_device(dev); pci_remove_sysfs_dev_files(dev); @@ -27,6 +30,11 @@ static void pci_destroy_dev(struct pci_dev *dev) dev->global_list.next = dev->global_list.prev = NULL; up_write(&pci_bus_sem); } +} + +static void pci_destroy_dev(struct pci_dev *dev) +{ + pci_stop_dev(dev); /* Remove the device from the device lists, and prevent any further * list accesses from this device */ @@ -119,5 +127,32 @@ void pci_remove_behind_bridge(struct pci_dev *dev) } } +static void pci_stop_bus_devices(struct pci_bus *bus) +{ + struct list_head *l, *n; + + list_for_each_safe(l, n, &bus->devices) { + struct pci_dev *dev = pci_dev_b(l); + pci_stop_bus_device(dev); + } +} + +/** + * pci_stop_bus_device - stop a PCI device and any children + * @dev: the device to stop + * + * Stop a PCI device (detach the driver, remove from the global list + * and so on). This also stop any subordinate buses and children in a + * depth-first manner. + */ +void pci_stop_bus_device(struct pci_dev *dev) +{ + if (dev->subordinate) + pci_stop_bus_devices(dev->subordinate); + + pci_stop_dev(dev); +} + EXPORT_SYMBOL(pci_remove_bus_device); EXPORT_SYMBOL(pci_remove_behind_bridge); +EXPORT_SYMBOL_GPL(pci_stop_bus_device); diff --git a/include/linux/pci.h b/include/linux/pci.h index 549d8410974b..5c3a4176eb64 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -441,6 +441,7 @@ extern struct pci_dev *pci_dev_get(struct pci_dev *dev); extern void pci_dev_put(struct pci_dev *dev); extern void pci_remove_bus(struct pci_bus *b); extern void pci_remove_bus_device(struct pci_dev *dev); +extern void pci_stop_bus_device(struct pci_dev *dev); void pci_setup_cardbus(struct pci_bus *bus); /* Generic PCI functions exported to card drivers */ -- cgit v1.2.3 From 0c91c1a7012911e4b0180a1c1ae258e2b706f987 Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Wed, 27 Sep 2006 11:16:20 +0900 Subject: sh: Move smc37c93x.h for SystemH board use. SystemH needs this header as well, not just 770x SE. Signed-off-by: Paul Mundt --- arch/sh/boards/se/770x/setup.c | 2 +- include/asm-sh/se/smc37c93x.h | 190 ----------------------------------------- include/asm-sh/smc37c93x.h | 190 +++++++++++++++++++++++++++++++++++++++++ 3 files changed, 191 insertions(+), 191 deletions(-) delete mode 100644 include/asm-sh/se/smc37c93x.h create mode 100644 include/asm-sh/smc37c93x.h (limited to 'include') diff --git a/arch/sh/boards/se/770x/setup.c b/arch/sh/boards/se/770x/setup.c index 7d1a071727cc..b6730ea57502 100644 --- a/arch/sh/boards/se/770x/setup.c +++ b/arch/sh/boards/se/770x/setup.c @@ -15,7 +15,7 @@ #include #include #include -#include +#include /* * Configure the Super I/O chip diff --git a/include/asm-sh/se/smc37c93x.h b/include/asm-sh/se/smc37c93x.h deleted file mode 100644 index 585da2a8fc45..000000000000 --- a/include/asm-sh/se/smc37c93x.h +++ /dev/null @@ -1,190 +0,0 @@ -#ifndef __ASM_SH_SMC37C93X_H -#define __ASM_SH_SMC37C93X_H - -/* - * linux/include/asm-sh/smc37c93x.h - * - * Copyright (C) 2000 Kazumoto Kojima - * - * SMSC 37C93x Super IO Chip support - */ - -/* Default base I/O address */ -#define FDC_PRIMARY_BASE 0x3f0 -#define IDE1_PRIMARY_BASE 0x1f0 -#define IDE1_SECONDARY_BASE 0x170 -#define PARPORT_PRIMARY_BASE 0x378 -#define COM1_PRIMARY_BASE 0x2f8 -#define COM2_PRIMARY_BASE 0x3f8 -#define RTC_PRIMARY_BASE 0x070 -#define KBC_PRIMARY_BASE 0x060 -#define AUXIO_PRIMARY_BASE 0x000 /* XXX */ - -/* Logical device number */ -#define LDN_FDC 0 -#define LDN_IDE1 1 -#define LDN_IDE2 2 -#define LDN_PARPORT 3 -#define LDN_COM1 4 -#define LDN_COM2 5 -#define LDN_RTC 6 -#define LDN_KBC 7 -#define LDN_AUXIO 8 - -/* Configuration port and key */ -#define CONFIG_PORT 0x3f0 -#define INDEX_PORT CONFIG_PORT -#define DATA_PORT 0x3f1 -#define CONFIG_ENTER 0x55 -#define CONFIG_EXIT 0xaa - -/* Configuration index */ -#define CURRENT_LDN_INDEX 0x07 -#define POWER_CONTROL_INDEX 0x22 -#define ACTIVATE_INDEX 0x30 -#define IO_BASE_HI_INDEX 0x60 -#define IO_BASE_LO_INDEX 0x61 -#define IRQ_SELECT_INDEX 0x70 -#define DMA_SELECT_INDEX 0x74 - -#define GPIO46_INDEX 0xc6 -#define GPIO47_INDEX 0xc7 - -/* UART stuff. Only for debugging. */ -/* UART Register */ - -#define UART_RBR 0x0 /* Receiver Buffer Register (Read Only) */ -#define UART_THR 0x0 /* Transmitter Holding Register (Write Only) */ -#define UART_IER 0x2 /* Interrupt Enable Register */ -#define UART_IIR 0x4 /* Interrupt Ident Register (Read Only) */ -#define UART_FCR 0x4 /* FIFO Control Register (Write Only) */ -#define UART_LCR 0x6 /* Line Control Register */ -#define UART_MCR 0x8 /* MODEM Control Register */ -#define UART_LSR 0xa /* Line Status Register */ -#define UART_MSR 0xc /* MODEM Status Register */ -#define UART_SCR 0xe /* Scratch Register */ -#define UART_DLL 0x0 /* Divisor Latch (LS) */ -#define UART_DLM 0x2 /* Divisor Latch (MS) */ - -#ifndef __ASSEMBLY__ -typedef struct uart_reg { - volatile __u16 rbr; - volatile __u16 ier; - volatile __u16 iir; - volatile __u16 lcr; - volatile __u16 mcr; - volatile __u16 lsr; - volatile __u16 msr; - volatile __u16 scr; -} uart_reg; -#endif /* ! __ASSEMBLY__ */ - -/* Alias for Write Only Register */ - -#define thr rbr -#define tcr iir - -/* Alias for Divisor Latch Register */ - -#define dll rbr -#define dlm ier -#define fcr iir - -/* Interrupt Enable Register */ - -#define IER_ERDAI 0x0100 /* Enable Received Data Available Interrupt */ -#define IER_ETHREI 0x0200 /* Enable Transmitter Holding Register Empty Interrupt */ -#define IER_ELSI 0x0400 /* Enable Receiver Line Status Interrupt */ -#define IER_EMSI 0x0800 /* Enable MODEM Status Interrupt */ - -/* Interrupt Ident Register */ - -#define IIR_IP 0x0100 /* "0" if Interrupt Pending */ -#define IIR_IIB0 0x0200 /* Interrupt ID Bit 0 */ -#define IIR_IIB1 0x0400 /* Interrupt ID Bit 1 */ -#define IIR_IIB2 0x0800 /* Interrupt ID Bit 2 */ -#define IIR_FIFO 0xc000 /* FIFOs enabled */ - -/* FIFO Control Register */ - -#define FCR_FEN 0x0100 /* FIFO enable */ -#define FCR_RFRES 0x0200 /* Receiver FIFO reset */ -#define FCR_TFRES 0x0400 /* Transmitter FIFO reset */ -#define FCR_DMA 0x0800 /* DMA mode select */ -#define FCR_RTL 0x4000 /* Receiver triger (LSB) */ -#define FCR_RTM 0x8000 /* Receiver triger (MSB) */ - -/* Line Control Register */ - -#define LCR_WLS0 0x0100 /* Word Length Select Bit 0 */ -#define LCR_WLS1 0x0200 /* Word Length Select Bit 1 */ -#define LCR_STB 0x0400 /* Number of Stop Bits */ -#define LCR_PEN 0x0800 /* Parity Enable */ -#define LCR_EPS 0x1000 /* Even Parity Select */ -#define LCR_SP 0x2000 /* Stick Parity */ -#define LCR_SB 0x4000 /* Set Break */ -#define LCR_DLAB 0x8000 /* Divisor Latch Access Bit */ - -/* MODEM Control Register */ - -#define MCR_DTR 0x0100 /* Data Terminal Ready */ -#define MCR_RTS 0x0200 /* Request to Send */ -#define MCR_OUT1 0x0400 /* Out 1 */ -#define MCR_IRQEN 0x0800 /* IRQ Enable */ -#define MCR_LOOP 0x1000 /* Loop */ - -/* Line Status Register */ - -#define LSR_DR 0x0100 /* Data Ready */ -#define LSR_OE 0x0200 /* Overrun Error */ -#define LSR_PE 0x0400 /* Parity Error */ -#define LSR_FE 0x0800 /* Framing Error */ -#define LSR_BI 0x1000 /* Break Interrupt */ -#define LSR_THRE 0x2000 /* Transmitter Holding Register Empty */ -#define LSR_TEMT 0x4000 /* Transmitter Empty */ -#define LSR_FIFOE 0x8000 /* Receiver FIFO error */ - -/* MODEM Status Register */ - -#define MSR_DCTS 0x0100 /* Delta Clear to Send */ -#define MSR_DDSR 0x0200 /* Delta Data Set Ready */ -#define MSR_TERI 0x0400 /* Trailing Edge Ring Indicator */ -#define MSR_DDCD 0x0800 /* Delta Data Carrier Detect */ -#define MSR_CTS 0x1000 /* Clear to Send */ -#define MSR_DSR 0x2000 /* Data Set Ready */ -#define MSR_RI 0x4000 /* Ring Indicator */ -#define MSR_DCD 0x8000 /* Data Carrier Detect */ - -/* Baud Rate Divisor */ - -#define UART_CLK (1843200) /* 1.8432 MHz */ -#define UART_BAUD(x) (UART_CLK / (16 * (x))) - -/* RTC register definition */ -#define RTC_SECONDS 0 -#define RTC_SECONDS_ALARM 1 -#define RTC_MINUTES 2 -#define RTC_MINUTES_ALARM 3 -#define RTC_HOURS 4 -#define RTC_HOURS_ALARM 5 -#define RTC_DAY_OF_WEEK 6 -#define RTC_DAY_OF_MONTH 7 -#define RTC_MONTH 8 -#define RTC_YEAR 9 -#define RTC_FREQ_SELECT 10 -# define RTC_UIP 0x80 -# define RTC_DIV_CTL 0x70 -/* This RTC can work under 32.768KHz clock only. */ -# define RTC_OSC_ENABLE 0x20 -# define RTC_OSC_DISABLE 0x00 -#define RTC_CONTROL 11 -# define RTC_SET 0x80 -# define RTC_PIE 0x40 -# define RTC_AIE 0x20 -# define RTC_UIE 0x10 -# define RTC_SQWE 0x08 -# define RTC_DM_BINARY 0x04 -# define RTC_24H 0x02 -# define RTC_DST_EN 0x01 - -#endif /* __ASM_SH_SMC37C93X_H */ diff --git a/include/asm-sh/smc37c93x.h b/include/asm-sh/smc37c93x.h new file mode 100644 index 000000000000..585da2a8fc45 --- /dev/null +++ b/include/asm-sh/smc37c93x.h @@ -0,0 +1,190 @@ +#ifndef __ASM_SH_SMC37C93X_H +#define __ASM_SH_SMC37C93X_H + +/* + * linux/include/asm-sh/smc37c93x.h + * + * Copyright (C) 2000 Kazumoto Kojima + * + * SMSC 37C93x Super IO Chip support + */ + +/* Default base I/O address */ +#define FDC_PRIMARY_BASE 0x3f0 +#define IDE1_PRIMARY_BASE 0x1f0 +#define IDE1_SECONDARY_BASE 0x170 +#define PARPORT_PRIMARY_BASE 0x378 +#define COM1_PRIMARY_BASE 0x2f8 +#define COM2_PRIMARY_BASE 0x3f8 +#define RTC_PRIMARY_BASE 0x070 +#define KBC_PRIMARY_BASE 0x060 +#define AUXIO_PRIMARY_BASE 0x000 /* XXX */ + +/* Logical device number */ +#define LDN_FDC 0 +#define LDN_IDE1 1 +#define LDN_IDE2 2 +#define LDN_PARPORT 3 +#define LDN_COM1 4 +#define LDN_COM2 5 +#define LDN_RTC 6 +#define LDN_KBC 7 +#define LDN_AUXIO 8 + +/* Configuration port and key */ +#define CONFIG_PORT 0x3f0 +#define INDEX_PORT CONFIG_PORT +#define DATA_PORT 0x3f1 +#define CONFIG_ENTER 0x55 +#define CONFIG_EXIT 0xaa + +/* Configuration index */ +#define CURRENT_LDN_INDEX 0x07 +#define POWER_CONTROL_INDEX 0x22 +#define ACTIVATE_INDEX 0x30 +#define IO_BASE_HI_INDEX 0x60 +#define IO_BASE_LO_INDEX 0x61 +#define IRQ_SELECT_INDEX 0x70 +#define DMA_SELECT_INDEX 0x74 + +#define GPIO46_INDEX 0xc6 +#define GPIO47_INDEX 0xc7 + +/* UART stuff. Only for debugging. */ +/* UART Register */ + +#define UART_RBR 0x0 /* Receiver Buffer Register (Read Only) */ +#define UART_THR 0x0 /* Transmitter Holding Register (Write Only) */ +#define UART_IER 0x2 /* Interrupt Enable Register */ +#define UART_IIR 0x4 /* Interrupt Ident Register (Read Only) */ +#define UART_FCR 0x4 /* FIFO Control Register (Write Only) */ +#define UART_LCR 0x6 /* Line Control Register */ +#define UART_MCR 0x8 /* MODEM Control Register */ +#define UART_LSR 0xa /* Line Status Register */ +#define UART_MSR 0xc /* MODEM Status Register */ +#define UART_SCR 0xe /* Scratch Register */ +#define UART_DLL 0x0 /* Divisor Latch (LS) */ +#define UART_DLM 0x2 /* Divisor Latch (MS) */ + +#ifndef __ASSEMBLY__ +typedef struct uart_reg { + volatile __u16 rbr; + volatile __u16 ier; + volatile __u16 iir; + volatile __u16 lcr; + volatile __u16 mcr; + volatile __u16 lsr; + volatile __u16 msr; + volatile __u16 scr; +} uart_reg; +#endif /* ! __ASSEMBLY__ */ + +/* Alias for Write Only Register */ + +#define thr rbr +#define tcr iir + +/* Alias for Divisor Latch Register */ + +#define dll rbr +#define dlm ier +#define fcr iir + +/* Interrupt Enable Register */ + +#define IER_ERDAI 0x0100 /* Enable Received Data Available Interrupt */ +#define IER_ETHREI 0x0200 /* Enable Transmitter Holding Register Empty Interrupt */ +#define IER_ELSI 0x0400 /* Enable Receiver Line Status Interrupt */ +#define IER_EMSI 0x0800 /* Enable MODEM Status Interrupt */ + +/* Interrupt Ident Register */ + +#define IIR_IP 0x0100 /* "0" if Interrupt Pending */ +#define IIR_IIB0 0x0200 /* Interrupt ID Bit 0 */ +#define IIR_IIB1 0x0400 /* Interrupt ID Bit 1 */ +#define IIR_IIB2 0x0800 /* Interrupt ID Bit 2 */ +#define IIR_FIFO 0xc000 /* FIFOs enabled */ + +/* FIFO Control Register */ + +#define FCR_FEN 0x0100 /* FIFO enable */ +#define FCR_RFRES 0x0200 /* Receiver FIFO reset */ +#define FCR_TFRES 0x0400 /* Transmitter FIFO reset */ +#define FCR_DMA 0x0800 /* DMA mode select */ +#define FCR_RTL 0x4000 /* Receiver triger (LSB) */ +#define FCR_RTM 0x8000 /* Receiver triger (MSB) */ + +/* Line Control Register */ + +#define LCR_WLS0 0x0100 /* Word Length Select Bit 0 */ +#define LCR_WLS1 0x0200 /* Word Length Select Bit 1 */ +#define LCR_STB 0x0400 /* Number of Stop Bits */ +#define LCR_PEN 0x0800 /* Parity Enable */ +#define LCR_EPS 0x1000 /* Even Parity Select */ +#define LCR_SP 0x2000 /* Stick Parity */ +#define LCR_SB 0x4000 /* Set Break */ +#define LCR_DLAB 0x8000 /* Divisor Latch Access Bit */ + +/* MODEM Control Register */ + +#define MCR_DTR 0x0100 /* Data Terminal Ready */ +#define MCR_RTS 0x0200 /* Request to Send */ +#define MCR_OUT1 0x0400 /* Out 1 */ +#define MCR_IRQEN 0x0800 /* IRQ Enable */ +#define MCR_LOOP 0x1000 /* Loop */ + +/* Line Status Register */ + +#define LSR_DR 0x0100 /* Data Ready */ +#define LSR_OE 0x0200 /* Overrun Error */ +#define LSR_PE 0x0400 /* Parity Error */ +#define LSR_FE 0x0800 /* Framing Error */ +#define LSR_BI 0x1000 /* Break Interrupt */ +#define LSR_THRE 0x2000 /* Transmitter Holding Register Empty */ +#define LSR_TEMT 0x4000 /* Transmitter Empty */ +#define LSR_FIFOE 0x8000 /* Receiver FIFO error */ + +/* MODEM Status Register */ + +#define MSR_DCTS 0x0100 /* Delta Clear to Send */ +#define MSR_DDSR 0x0200 /* Delta Data Set Ready */ +#define MSR_TERI 0x0400 /* Trailing Edge Ring Indicator */ +#define MSR_DDCD 0x0800 /* Delta Data Carrier Detect */ +#define MSR_CTS 0x1000 /* Clear to Send */ +#define MSR_DSR 0x2000 /* Data Set Ready */ +#define MSR_RI 0x4000 /* Ring Indicator */ +#define MSR_DCD 0x8000 /* Data Carrier Detect */ + +/* Baud Rate Divisor */ + +#define UART_CLK (1843200) /* 1.8432 MHz */ +#define UART_BAUD(x) (UART_CLK / (16 * (x))) + +/* RTC register definition */ +#define RTC_SECONDS 0 +#define RTC_SECONDS_ALARM 1 +#define RTC_MINUTES 2 +#define RTC_MINUTES_ALARM 3 +#define RTC_HOURS 4 +#define RTC_HOURS_ALARM 5 +#define RTC_DAY_OF_WEEK 6 +#define RTC_DAY_OF_MONTH 7 +#define RTC_MONTH 8 +#define RTC_YEAR 9 +#define RTC_FREQ_SELECT 10 +# define RTC_UIP 0x80 +# define RTC_DIV_CTL 0x70 +/* This RTC can work under 32.768KHz clock only. */ +# define RTC_OSC_ENABLE 0x20 +# define RTC_OSC_DISABLE 0x00 +#define RTC_CONTROL 11 +# define RTC_SET 0x80 +# define RTC_PIE 0x40 +# define RTC_AIE 0x20 +# define RTC_UIE 0x10 +# define RTC_SQWE 0x08 +# define RTC_DM_BINARY 0x04 +# define RTC_24H 0x02 +# define RTC_DST_EN 0x01 + +#endif /* __ASM_SH_SMC37C93X_H */ -- cgit v1.2.3 From e4e3b5ccd77226c9c4dbb0737106b868dfc182d9 Mon Sep 17 00:00:00 2001 From: Tom Rini Date: Wed, 27 Sep 2006 11:28:20 +0900 Subject: sh: Add a simple cmpxchg(). We didn't have one of these before, a simple implementation borrowed from MIPS as well as the __HAVE_ARCH_CMPXCHG bits. Signed-off-by: Tom Rini Signed-off-by: Paul Mundt --- include/asm-sh/system.h | 40 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 40 insertions(+) (limited to 'include') diff --git a/include/asm-sh/system.h b/include/asm-sh/system.h index ad35ad4958f4..e89728d405d8 100644 --- a/include/asm-sh/system.h +++ b/include/asm-sh/system.h @@ -6,6 +6,7 @@ * Copyright (C) 2002 Paul Mundt */ +#include /* * switch_to() should switch tasks to task nr n, first @@ -260,6 +261,45 @@ static __inline__ unsigned long __xchg(unsigned long x, volatile void * ptr, int return x; } +static inline unsigned long __cmpxchg_u32(volatile int * m, unsigned long old, + unsigned long new) +{ + __u32 retval; + unsigned long flags; + + local_irq_save(flags); + retval = *m; + if (retval == old) + *m = new; + local_irq_restore(flags); /* implies memory barrier */ + return retval; +} + +/* 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); + +#define __HAVE_ARCH_CMPXCHG 1 + +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); + } + __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))); \ + }) + /* XXX * disable hlt during certain critical i/o operations */ -- cgit v1.2.3 From e4c2cfee5d5cf3e4c16b423be23551aeddf2717b Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Wed, 27 Sep 2006 12:31:01 +0900 Subject: sh: Various cosmetic cleanups. We had quite a bit of whitespace damage, clean most of it up.. Signed-off-by: Stuart Menefy Signed-off-by: Arthur Othieno Signed-off-by: Paul Mundt --- arch/sh/boards/dreamcast/irq.c | 8 ++-- arch/sh/boards/dreamcast/rtc.c | 18 ++++----- arch/sh/boards/dreamcast/setup.c | 6 +-- arch/sh/boards/renesas/edosk7705/Makefile | 4 -- arch/sh/boards/renesas/hs7751rvoip/Makefile | 4 -- arch/sh/boards/renesas/hs7751rvoip/io.c | 4 +- arch/sh/boards/renesas/rts7751r2d/Makefile | 4 -- arch/sh/boards/renesas/rts7751r2d/led.c | 2 - arch/sh/boards/renesas/rts7751r2d/setup.c | 3 -- arch/sh/drivers/dma/dma-pvr2.c | 5 +-- arch/sh/kernel/cpu/clock.c | 2 +- arch/sh/kernel/cpu/sh4/sq.c | 3 +- arch/sh/kernel/entry.S | 18 --------- arch/sh/kernel/ptrace.c | 1 - arch/sh/kernel/sh_ksyms.c | 2 + drivers/char/watchdog/shwdt.c | 58 ++++++++++++----------------- include/asm-sh/atomic.h | 1 + include/asm-sh/bitops.h | 16 ++++---- include/asm-sh/checksum.h | 2 + include/asm-sh/fixmap.h | 2 +- include/asm-sh/watchdog.h | 3 -- 21 files changed, 60 insertions(+), 106 deletions(-) (limited to 'include') diff --git a/arch/sh/boards/dreamcast/irq.c b/arch/sh/boards/dreamcast/irq.c index b10a6b11c034..373a22e48ac4 100644 --- a/arch/sh/boards/dreamcast/irq.c +++ b/arch/sh/boards/dreamcast/irq.c @@ -26,10 +26,10 @@ event. There are three 32-bit ESRs located at 0xa05f8900 - 0xa05f6908. Event - types can be found in include/asm-sh/dc_sysasic.h. There are three groups - of EMRs that parallel the ESRs. Each EMR group corresponds to an IRQ, so - 0xa05f6910 - 0xa05f6918 triggers IRQ 13, 0xa05f6920 - 0xa05f6928 triggers - IRQ 11, and 0xa05f6930 - 0xa05f6938 triggers IRQ 9. + types can be found in include/asm-sh/dreamcast/sysasic.h. There are three + groups of EMRs that parallel the ESRs. Each EMR group corresponds to an + IRQ, so 0xa05f6910 - 0xa05f6918 triggers IRQ 13, 0xa05f6920 - 0xa05f6928 + triggers IRQ 11, and 0xa05f6930 - 0xa05f6938 triggers IRQ 9. In the kernel, these events are mapped to virtual IRQs so that drivers can respond to them as they would a normal interrupt. In order to keep this diff --git a/arch/sh/boards/dreamcast/rtc.c b/arch/sh/boards/dreamcast/rtc.c index 379de1629134..44420494dc22 100644 --- a/arch/sh/boards/dreamcast/rtc.c +++ b/arch/sh/boards/dreamcast/rtc.c @@ -1,4 +1,5 @@ -/* arch/sh/kernel/rtc-aica.c +/* + * arch/sh/boards/dreamcast/rtc.c * * Dreamcast AICA RTC routines. * @@ -10,15 +11,12 @@ */ #include - +#include #include -extern void (*rtc_get_time)(struct timespec *); -extern int (*rtc_set_time)(const time_t); - /* The AICA RTC has an Epoch of 1/1/1950, so we must subtract 20 years (in - seconds to get the standard Unix Epoch when getting the time, and add 20 - years when setting the time. */ + seconds) to get the standard Unix Epoch when getting the time, and add + 20 years when setting the time. */ #define TWENTY_YEARS ((20 * 365LU + 5) * 86400) /* The AICA RTC is represented by a 32-bit seconds counter stored in 2 16-bit @@ -32,7 +30,8 @@ extern int (*rtc_set_time)(const time_t); * * Grabs the current RTC seconds counter and adjusts it to the Unix Epoch. */ -void aica_rtc_gettimeofday(struct timespec *ts) { +void aica_rtc_gettimeofday(struct timespec *ts) +{ unsigned long val1, val2; do { @@ -55,7 +54,8 @@ void aica_rtc_gettimeofday(struct timespec *ts) { * * Adjusts the given @tv to the AICA Epoch and sets the RTC seconds counter. */ -int aica_rtc_settimeofday(const time_t secs) { +int aica_rtc_settimeofday(const time_t secs) +{ unsigned long val1, val2; unsigned long adj = secs + TWENTY_YEARS; diff --git a/arch/sh/boards/dreamcast/setup.c b/arch/sh/boards/dreamcast/setup.c index 0027b80a2343..a00ac94beb05 100644 --- a/arch/sh/boards/dreamcast/setup.c +++ b/arch/sh/boards/dreamcast/setup.c @@ -25,18 +25,16 @@ #include #include +#include #include -#include #include extern struct hw_interrupt_type systemasic_int; -/* XXX: Move this into it's proper header. */ -extern void (*board_time_init)(void); extern void aica_time_init(void); extern int gapspci_init(void); extern int systemasic_irq_demux(int); -void *dreamcast_consistent_alloc(struct device *, size_t, dma_addr_t *, int); +void *dreamcast_consistent_alloc(struct device *, size_t, dma_addr_t *, gfp_t); int dreamcast_consistent_free(struct device *, size_t, void *, dma_addr_t); const char *get_system_type(void) diff --git a/arch/sh/boards/renesas/edosk7705/Makefile b/arch/sh/boards/renesas/edosk7705/Makefile index 7fccbf2e4a1d..14bdd531f116 100644 --- a/arch/sh/boards/renesas/edosk7705/Makefile +++ b/arch/sh/boards/renesas/edosk7705/Makefile @@ -1,10 +1,6 @@ # # Makefile for the EDOSK7705 specific parts of the kernel # -# Note! Dependencies are done automagically by 'make dep', which also -# removes any old dependencies. DON'T put your own dependencies here -# unless it's something special (ie not a .c file). -# obj-y := setup.o io.o diff --git a/arch/sh/boards/renesas/hs7751rvoip/Makefile b/arch/sh/boards/renesas/hs7751rvoip/Makefile index e8b4109ace11..3ef8cbaa0b37 100644 --- a/arch/sh/boards/renesas/hs7751rvoip/Makefile +++ b/arch/sh/boards/renesas/hs7751rvoip/Makefile @@ -1,10 +1,6 @@ # # Makefile for the HS7751RVoIP specific parts of the kernel # -# Note! Dependencies are done automagically by 'make dep', which also -# removes any old dependencies. DON'T put your own dependencies here -# unless it's something special (ie not a .c file). -# obj-y := mach.o setup.o io.o irq.o led.o diff --git a/arch/sh/boards/renesas/hs7751rvoip/io.c b/arch/sh/boards/renesas/hs7751rvoip/io.c index 3a1abfa2fefb..09fb77ffb835 100644 --- a/arch/sh/boards/renesas/hs7751rvoip/io.c +++ b/arch/sh/boards/renesas/hs7751rvoip/io.c @@ -167,7 +167,7 @@ void hs7751rvoip_outb(unsigned char value, unsigned long port) *(volatile unsigned char *)port = value; #if defined(CONFIG_HS7751RVOIP_CODEC) else if (codec_port(port)) - *(volatile unsigned cjar *)((unsigned long)area6_io8_base+(port-CODEC_IO_BASE)) = value; + *(volatile unsigned char *)((unsigned long)area6_io8_base+(port-CODEC_IO_BASE)) = value; #endif else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) *(unsigned char *)PCI_IOMAP(port) = value; @@ -181,7 +181,7 @@ void hs7751rvoip_outb_p(unsigned char value, unsigned long port) *(volatile unsigned char *)port = value; #if defined(CONFIG_HS7751RVOIP_CODEC) else if (codec_port(port)) - *(volatile unsigned cjar *)((unsigned long)area6_io8_base+(port-CODEC_IO_BASE)) = value; + *(volatile unsigned char *)((unsigned long)area6_io8_base+(port-CODEC_IO_BASE)) = value; #endif else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) *(unsigned char *)PCI_IOMAP(port) = value; diff --git a/arch/sh/boards/renesas/rts7751r2d/Makefile b/arch/sh/boards/renesas/rts7751r2d/Makefile index daa53334bdc3..eee1ed6f5727 100644 --- a/arch/sh/boards/renesas/rts7751r2d/Makefile +++ b/arch/sh/boards/renesas/rts7751r2d/Makefile @@ -1,10 +1,6 @@ # # Makefile for the RTS7751R2D specific parts of the kernel # -# Note! Dependencies are done automagically by 'make dep', which also -# removes any old dependencies. DON'T put your own dependencies here -# unless it's something special (ie not a .c file). -# obj-y := mach.o setup.o io.o irq.o led.o diff --git a/arch/sh/boards/renesas/rts7751r2d/led.c b/arch/sh/boards/renesas/rts7751r2d/led.c index 4d16de71fac1..cf35f90dfe03 100644 --- a/arch/sh/boards/renesas/rts7751r2d/led.c +++ b/arch/sh/boards/renesas/rts7751r2d/led.c @@ -12,8 +12,6 @@ #include #include -extern unsigned int debug_counter; - #ifdef CONFIG_HEARTBEAT #include diff --git a/arch/sh/boards/renesas/rts7751r2d/setup.c b/arch/sh/boards/renesas/rts7751r2d/setup.c index 7953dde0b91c..60907f574f34 100644 --- a/arch/sh/boards/renesas/rts7751r2d/setup.c +++ b/arch/sh/boards/renesas/rts7751r2d/setup.c @@ -14,8 +14,6 @@ #include #include -unsigned int debug_counter; - const char *get_system_type(void) { return "RTS7751R2D"; @@ -34,5 +32,4 @@ void __init platform_setup(void) printk(KERN_INFO "Renesas Technology Sales RTS7751R2D support.\n"); ctrl_outw(0x0000, PA_OUTPORT); pm_power_off = rts7751r2d_power_off; - debug_counter = 0; } diff --git a/arch/sh/drivers/dma/dma-pvr2.c b/arch/sh/drivers/dma/dma-pvr2.c index 30a580aa7cbd..3b0b0f60bb3c 100644 --- a/arch/sh/drivers/dma/dma-pvr2.c +++ b/arch/sh/drivers/dma/dma-pvr2.c @@ -18,8 +18,8 @@ #include #include -static unsigned int xfer_complete = 0; -static int count = 0; +static unsigned int xfer_complete; +static int count; static irqreturn_t pvr2_dma_interrupt(int irq, void *dev_id, struct pt_regs *regs) { @@ -107,4 +107,3 @@ module_exit(pvr2_dma_exit); MODULE_AUTHOR("Paul Mundt "); MODULE_DESCRIPTION("NEC PowerVR 2 DMA driver"); MODULE_LICENSE("GPL"); - diff --git a/arch/sh/kernel/cpu/clock.c b/arch/sh/kernel/cpu/clock.c index 97fa37f42b84..e7eef07536f5 100644 --- a/arch/sh/kernel/cpu/clock.c +++ b/arch/sh/kernel/cpu/clock.c @@ -225,7 +225,7 @@ int __init clk_init(void) { int i, ret = 0; - BUG_ON(unlikely(!master_clk.rate)); + BUG_ON(!master_clk.rate); for (i = 0; i < ARRAY_SIZE(onchip_clocks); i++) { struct clk *clk = onchip_clocks[i]; diff --git a/arch/sh/kernel/cpu/sh4/sq.c b/arch/sh/kernel/cpu/sh4/sq.c index b09805f3ee23..00f6a3c8c43b 100644 --- a/arch/sh/kernel/cpu/sh4/sq.c +++ b/arch/sh/kernel/cpu/sh4/sq.c @@ -24,9 +24,10 @@ #include #include #include - +#include #include #include +#include #include #include diff --git a/arch/sh/kernel/entry.S b/arch/sh/kernel/entry.S index 1a05804caf37..306eb8d83de5 100644 --- a/arch/sh/kernel/entry.S +++ b/arch/sh/kernel/entry.S @@ -18,24 +18,6 @@ #include #include -#if !defined(CONFIG_NFSD) && !defined(CONFIG_NFSD_MODULE) -#define sys_nfsservctl sys_ni_syscall -#endif - -#if !defined(CONFIG_MMU) -#define sys_madvise sys_ni_syscall -#define sys_readahead sys_ni_syscall -#define sys_mprotect sys_ni_syscall -#define sys_msync sys_ni_syscall -#define sys_mlock sys_ni_syscall -#define sys_munlock sys_ni_syscall -#define sys_mlockall sys_ni_syscall -#define sys_munlockall sys_ni_syscall -#define sys_mremap sys_ni_syscall -#define sys_mincore sys_ni_syscall -#define sys_remap_file_pages sys_ni_syscall -#endif - ! NOTE: ! GNU as (as of 2.9.1) changes bf/s into bt/s and bra, when the address ! to be jumped is too far, but it causes illegal slot exception. diff --git a/arch/sh/kernel/ptrace.c b/arch/sh/kernel/ptrace.c index f7eebbde3291..04ca13a041c1 100644 --- a/arch/sh/kernel/ptrace.c +++ b/arch/sh/kernel/ptrace.c @@ -224,7 +224,6 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) case PTRACE_SETDSPREGS: { unsigned long dp; - int i; ret = -EIO; dp = ((unsigned long) child) + THREAD_SIZE - diff --git a/arch/sh/kernel/sh_ksyms.c b/arch/sh/kernel/sh_ksyms.c index 245ed8f945e8..8cad80cec9a6 100644 --- a/arch/sh/kernel/sh_ksyms.c +++ b/arch/sh/kernel/sh_ksyms.c @@ -117,6 +117,8 @@ EXPORT_SYMBOL(synchronize_irq); #endif EXPORT_SYMBOL(csum_partial); +#ifdef CONFIG_IPV6 EXPORT_SYMBOL(csum_ipv6_magic); +#endif EXPORT_SYMBOL(consistent_sync); EXPORT_SYMBOL(clear_page); diff --git a/drivers/char/watchdog/shwdt.c b/drivers/char/watchdog/shwdt.c index 1355038f1044..7c39f39effdf 100644 --- a/drivers/char/watchdog/shwdt.c +++ b/drivers/char/watchdog/shwdt.c @@ -125,7 +125,6 @@ static void sh_wdt_start(void) /** * sh_wdt_stop - Stop the Watchdog - * * Stops the watchdog. */ static void sh_wdt_stop(void) @@ -141,22 +140,20 @@ static void sh_wdt_stop(void) /** * sh_wdt_keepalive - Keep the Userspace Watchdog Alive - * * The Userspace watchdog got a KeepAlive: schedule the next heartbeat. */ -static void sh_wdt_keepalive(void) +static inline void sh_wdt_keepalive(void) { next_heartbeat = jiffies + (heartbeat * HZ); } /** * sh_wdt_set_heartbeat - Set the Userspace Watchdog heartbeat - * * Set the Userspace Watchdog heartbeat */ static int sh_wdt_set_heartbeat(int t) { - if ((t < 1) || (t > 3600)) /* arbitrary upper limit */ + if (unlikely((t < 1) || (t > 3600))) /* arbitrary upper limit */ return -EINVAL; heartbeat = t; @@ -165,7 +162,6 @@ static int sh_wdt_set_heartbeat(int t) /** * sh_wdt_ping - Ping the Watchdog - * * @data: Unused * * Clears overflow bit, resets timer counter. @@ -182,14 +178,13 @@ static void sh_wdt_ping(unsigned long data) sh_wdt_write_cnt(0); mod_timer(&timer, next_ping_period(clock_division_ratio)); - } else { - printk(KERN_WARNING PFX "Heartbeat lost! Will not ping the watchdog\n"); - } + } else + printk(KERN_WARNING PFX "Heartbeat lost! Will not ping " + "the watchdog\n"); } /** * sh_wdt_open - Open the Device - * * @inode: inode of device * @file: file handle of device * @@ -209,7 +204,6 @@ static int sh_wdt_open(struct inode *inode, struct file *file) /** * sh_wdt_close - Close the Device - * * @inode: inode of device * @file: file handle of device * @@ -220,7 +214,8 @@ static int sh_wdt_close(struct inode *inode, struct file *file) if (shwdt_expect_close == 42) { sh_wdt_stop(); } else { - printk(KERN_CRIT PFX "Unexpected close, not stopping watchdog!\n"); + printk(KERN_CRIT PFX "Unexpected close, not " + "stopping watchdog!\n"); sh_wdt_keepalive(); } @@ -232,7 +227,6 @@ static int sh_wdt_close(struct inode *inode, struct file *file) /** * sh_wdt_write - Write to Device - * * @file: file handle of device * @buf: buffer to write * @count: length of buffer @@ -265,7 +259,6 @@ static ssize_t sh_wdt_write(struct file *file, const char *buf, /** * sh_wdt_ioctl - Query Device - * * @inode: inode of device * @file: file handle of device * @cmd: watchdog command @@ -326,7 +319,6 @@ static int sh_wdt_ioctl(struct inode *inode, struct file *file, /** * sh_wdt_notify_sys - Notifier Handler - * * @this: notifier block * @code: notifier event * @unused: unused @@ -337,9 +329,8 @@ static int sh_wdt_ioctl(struct inode *inode, struct file *file, static int sh_wdt_notify_sys(struct notifier_block *this, unsigned long code, void *unused) { - if (code == SYS_DOWN || code == SYS_HALT) { + if (code == SYS_DOWN || code == SYS_HALT) sh_wdt_stop(); - } return NOTIFY_DONE; } @@ -354,7 +345,8 @@ static const struct file_operations sh_wdt_fops = { }; static struct watchdog_info sh_wdt_info = { - .options = WDIOF_KEEPALIVEPING | WDIOF_SETTIMEOUT | WDIOF_MAGICCLOSE, + .options = WDIOF_KEEPALIVEPING | WDIOF_SETTIMEOUT | + WDIOF_MAGICCLOSE, .firmware_version = 1, .identity = "SH WDT", }; @@ -371,7 +363,6 @@ static struct miscdevice sh_wdt_miscdev = { /** * sh_wdt_init - Initialize module - * * Registers the device and notifier handler. Actual device * initialization is handled by sh_wdt_open(). */ @@ -381,15 +372,15 @@ static int __init sh_wdt_init(void) if ((clock_division_ratio < 0x5) || (clock_division_ratio > 0x7)) { clock_division_ratio = WTCSR_CKS_4096; - printk(KERN_INFO PFX "clock_division_ratio value must be 0x5<=x<=0x7, using %d\n", - clock_division_ratio); + printk(KERN_INFO PFX "clock_division_ratio value must " + "be 0x5<=x<=0x7, using %d\n", clock_division_ratio); } - if (sh_wdt_set_heartbeat(heartbeat)) - { + rc = sh_wdt_set_heartbeat(heartbeat); + if (unlikely(rc)) { heartbeat = WATCHDOG_HEARTBEAT; - printk(KERN_INFO PFX "heartbeat value must be 1<=x<=3600, using %d\n", - heartbeat); + printk(KERN_INFO PFX "heartbeat value must " + "be 1<=x<=3600, using %d\n", heartbeat); } init_timer(&timer); @@ -397,15 +388,16 @@ static int __init sh_wdt_init(void) timer.data = 0; rc = register_reboot_notifier(&sh_wdt_notifier); - if (rc) { - printk(KERN_ERR PFX "Can't register reboot notifier (err=%d)\n", rc); + if (unlikely(rc)) { + printk(KERN_ERR PFX "Can't register reboot notifier (err=%d)\n", + rc); return rc; } rc = misc_register(&sh_wdt_miscdev); - if (rc) { - printk(KERN_ERR PFX "Can't register miscdev on minor=%d (err=%d)\n", - sh_wdt_miscdev.minor, rc); + if (unlikely(rc)) { + printk(KERN_ERR PFX "Can't register miscdev on " + "minor=%d (err=%d)\n", sh_wdt_miscdev.minor, rc); unregister_reboot_notifier(&sh_wdt_notifier); return rc; } @@ -418,7 +410,6 @@ static int __init sh_wdt_init(void) /** * sh_wdt_exit - Deinitialize module - * * Unregisters the device and notifier handler. Actual device * deinitialization is handled by sh_wdt_close(). */ @@ -434,14 +425,13 @@ MODULE_LICENSE("GPL"); MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); module_param(clock_division_ratio, int, 0); -MODULE_PARM_DESC(clock_division_ratio, "Clock division ratio. Valid ranges are from 0x5 (1.31ms) to 0x7 (5.25ms). Defaults to 0x7."); +MODULE_PARM_DESC(clock_division_ratio, "Clock division ratio. Valid ranges are from 0x5 (1.31ms) to 0x7 (5.25ms). (default=" __MODULE_STRING(clock_division_ratio) ")"); module_param(heartbeat, int, 0); MODULE_PARM_DESC(heartbeat, "Watchdog heartbeat in seconds. (1<=heartbeat<=3600, default=" __MODULE_STRING(WATCHDOG_HEARTBEAT) ")"); module_param(nowayout, int, 0); -MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=CONFIG_WATCHDOG_NOWAYOUT)"); +MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); module_init(sh_wdt_init); module_exit(sh_wdt_exit); - diff --git a/include/asm-sh/atomic.h b/include/asm-sh/atomic.h index fb627de217f2..049eb2dda6b6 100644 --- a/include/asm-sh/atomic.h +++ b/include/asm-sh/atomic.h @@ -14,6 +14,7 @@ typedef struct { volatile int counter; } atomic_t; #define atomic_read(v) ((v)->counter) #define atomic_set(v,i) ((v)->counter = (i)) +#include #include /* diff --git a/include/asm-sh/bitops.h b/include/asm-sh/bitops.h index e34f82508568..1c16792cee1d 100644 --- a/include/asm-sh/bitops.h +++ b/include/asm-sh/bitops.h @@ -6,7 +6,7 @@ /* For __swab32 */ #include -static __inline__ void set_bit(int nr, volatile void * addr) +static inline void set_bit(int nr, volatile void * addr) { int mask; volatile unsigned int *a = addr; @@ -24,7 +24,7 @@ static __inline__ void set_bit(int nr, volatile void * addr) */ #define smp_mb__before_clear_bit() barrier() #define smp_mb__after_clear_bit() barrier() -static __inline__ void clear_bit(int nr, volatile void * addr) +static inline void clear_bit(int nr, volatile void * addr) { int mask; volatile unsigned int *a = addr; @@ -37,7 +37,7 @@ static __inline__ void clear_bit(int nr, volatile void * addr) local_irq_restore(flags); } -static __inline__ void change_bit(int nr, volatile void * addr) +static inline void change_bit(int nr, volatile void * addr) { int mask; volatile unsigned int *a = addr; @@ -50,7 +50,7 @@ static __inline__ void change_bit(int nr, volatile void * addr) local_irq_restore(flags); } -static __inline__ int test_and_set_bit(int nr, volatile void * addr) +static inline int test_and_set_bit(int nr, volatile void * addr) { int mask, retval; volatile unsigned int *a = addr; @@ -66,7 +66,7 @@ static __inline__ int test_and_set_bit(int nr, volatile void * addr) return retval; } -static __inline__ int test_and_clear_bit(int nr, volatile void * addr) +static inline int test_and_clear_bit(int nr, volatile void * addr) { int mask, retval; volatile unsigned int *a = addr; @@ -82,7 +82,7 @@ static __inline__ int test_and_clear_bit(int nr, volatile void * addr) return retval; } -static __inline__ int test_and_change_bit(int nr, volatile void * addr) +static inline int test_and_change_bit(int nr, volatile void * addr) { int mask, retval; volatile unsigned int *a = addr; @@ -100,7 +100,7 @@ static __inline__ int test_and_change_bit(int nr, volatile void * addr) #include -static __inline__ unsigned long ffz(unsigned long word) +static inline unsigned long ffz(unsigned long word) { unsigned long result; @@ -120,7 +120,7 @@ static __inline__ unsigned long ffz(unsigned long word) * * Undefined if no bit exists, so code should check against 0 first. */ -static __inline__ unsigned long __ffs(unsigned long word) +static inline unsigned long __ffs(unsigned long word) { unsigned long result; diff --git a/include/asm-sh/checksum.h b/include/asm-sh/checksum.h index fa03b30c4269..08168afe6746 100644 --- a/include/asm-sh/checksum.h +++ b/include/asm-sh/checksum.h @@ -159,6 +159,7 @@ static __inline__ unsigned short ip_compute_csum(unsigned char * buff, int len) } #define _HAVE_ARCH_IPV6_CSUM +#ifdef CONFIG_IPV6 static __inline__ unsigned short int csum_ipv6_magic(struct in6_addr *saddr, struct in6_addr *daddr, __u32 len, @@ -194,6 +195,7 @@ static __inline__ unsigned short int csum_ipv6_magic(struct in6_addr *saddr, return csum_fold(sum); } +#endif /* * Copy and checksum to user diff --git a/include/asm-sh/fixmap.h b/include/asm-sh/fixmap.h index 412bccaa07e6..458e9fa59545 100644 --- a/include/asm-sh/fixmap.h +++ b/include/asm-sh/fixmap.h @@ -25,7 +25,7 @@ * addresses. The point is to have a constant address at * compile time, but to set the physical address only * in the boot process. We allocate these special addresses - * from the end of virtual memory (0xfffff000) backwards. + * from the end of P3 backwards. * Also this lets us do fail-safe vmalloc(), we * can guarantee that these special addresses and * vmalloc()-ed addresses never overlap. diff --git a/include/asm-sh/watchdog.h b/include/asm-sh/watchdog.h index 09ca41972a11..d19ea62ef8c6 100644 --- a/include/asm-sh/watchdog.h +++ b/include/asm-sh/watchdog.h @@ -62,7 +62,6 @@ /** * sh_wdt_read_cnt - Read from Counter - * * Reads back the WTCNT value. */ static inline __u8 sh_wdt_read_cnt(void) @@ -72,7 +71,6 @@ static inline __u8 sh_wdt_read_cnt(void) /** * sh_wdt_write_cnt - Write to Counter - * * @val: Value to write * * Writes the given value @val to the lower byte of the timer counter. @@ -95,7 +93,6 @@ static inline __u8 sh_wdt_read_csr(void) /** * sh_wdt_write_csr - Write to Control/Status Register - * * @val: Value to write * * Writes the given value @val to the lower byte of the control/status -- cgit v1.2.3 From 3f787fe2e077ecfe43ad9ad56f12a8e21cffafc3 Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Wed, 27 Sep 2006 13:11:57 +0900 Subject: sh: hugetlb updates. For some of the larger sizes we permitted spanning pages across several PTEs, but this turned out to not be generally useful. This reverts the sh hugetlbpage interface to something more sensible using huge pages at single PTE granularity. Signed-off-by: Paul Mundt --- arch/sh/mm/hugetlbpage.c | 52 +++++++++++++++--------------------------------- include/asm-sh/page.h | 1 - 2 files changed, 16 insertions(+), 37 deletions(-) (limited to 'include') diff --git a/arch/sh/mm/hugetlbpage.c b/arch/sh/mm/hugetlbpage.c index 2a85bc15a412..329059d6b54a 100644 --- a/arch/sh/mm/hugetlbpage.c +++ b/arch/sh/mm/hugetlbpage.c @@ -26,61 +26,41 @@ pte_t *huge_pte_alloc(struct mm_struct *mm, unsigned long addr) { pgd_t *pgd; + pud_t *pud; pmd_t *pmd; pte_t *pte = NULL; pgd = pgd_offset(mm, addr); if (pgd) { - pmd = pmd_alloc(mm, pgd, addr); - if (pmd) - pte = pte_alloc_map(mm, pmd, addr); + pud = pud_alloc(mm, pgd, addr); + if (pud) { + pmd = pmd_alloc(mm, pud, addr); + if (pmd) + pte = pte_alloc_map(mm, pmd, addr); + } } + return pte; } pte_t *huge_pte_offset(struct mm_struct *mm, unsigned long addr) { pgd_t *pgd; + pud_t *pud; pmd_t *pmd; pte_t *pte = NULL; pgd = pgd_offset(mm, addr); if (pgd) { - pmd = pmd_offset(pgd, addr); - if (pmd) - pte = pte_offset_map(pmd, addr); - } - return pte; -} - -void set_huge_pte_at(struct mm_struct *mm, unsigned long addr, - pte_t *ptep, pte_t entry) -{ - int i; - - for (i = 0; i < (1 << HUGETLB_PAGE_ORDER); i++) { - set_pte_at(mm, addr, ptep, entry); - ptep++; - addr += PAGE_SIZE; - pte_val(entry) += PAGE_SIZE; + pud = pud_offset(pgd, addr); + if (pud) { + pmd = pmd_offset(pud, addr); + if (pmd) + pte = pte_offset_map(pmd, addr); + } } -} - -pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, - pte_t *ptep) -{ - pte_t entry; - int i; - - entry = *ptep; - for (i = 0; i < (1 << HUGETLB_PAGE_ORDER); i++) { - pte_clear(mm, addr, ptep); - addr += PAGE_SIZE; - ptep++; - } - - return entry; + return pte; } struct page *follow_huge_addr(struct mm_struct *mm, diff --git a/include/asm-sh/page.h b/include/asm-sh/page.h index 6f7eb8a3aba5..4811d410d123 100644 --- a/include/asm-sh/page.h +++ b/include/asm-sh/page.h @@ -30,7 +30,6 @@ #define HPAGE_SIZE (1UL << HPAGE_SHIFT) #define HPAGE_MASK (~(HPAGE_SIZE-1)) #define HUGETLB_PAGE_ORDER (HPAGE_SHIFT-PAGE_SHIFT) -#define ARCH_HAS_SETCLEAR_HUGE_PTE #endif #ifdef __KERNEL__ -- cgit v1.2.3 From d95fb13c960ae19e9fd4a95807eb68fa20caf537 Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Wed, 27 Sep 2006 13:30:08 +0900 Subject: sh: Fixup TMU_TOCR definition for SH7300. SH7300 has a different TMU_TOCR, make the TMU code work again. Signed-off-by: Paul Mundt --- include/asm-sh/cpu-sh3/timer.h | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/include/asm-sh/cpu-sh3/timer.h b/include/asm-sh/cpu-sh3/timer.h index 3d8e95e8d10c..2082ad956f21 100644 --- a/include/asm-sh/cpu-sh3/timer.h +++ b/include/asm-sh/cpu-sh3/timer.h @@ -23,6 +23,10 @@ * --------------------------------------------------------------------------- */ +#if !defined(CONFIG_CPU_SUBTYPE_SH7727) +#define TMU_TOCR 0xfffffe90 /* Byte access */ +#endif + #if defined(CONFIG_CPU_SUBTYPE_SH7300) || defined(CONFIG_CPU_SUBTYPE_SH7710) #define TMU_TSTR 0xa412fe92 /* Byte access */ @@ -39,9 +43,6 @@ #define TMU2_TCR 0xa412feb4 /* Word access */ #else -#if !defined(CONFIG_CPU_SUBTYPE_SH7727) -#define TMU_TOCR 0xfffffe90 /* Byte access */ -#endif #define TMU_TSTR 0xfffffe92 /* Byte access */ #define TMU0_TCOR 0xfffffe94 /* Long access */ -- cgit v1.2.3 From 6d75e650f1d0d59fd97c7629f0903ef18e8dfb7b Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Wed, 27 Sep 2006 13:42:57 +0900 Subject: sh: Move hd64461.h to a more sensible location. With the I/O rework for hd64461 we're down to a single header, so move it by itself and get rid of the directory. Signed-off-by: Paul Mundt --- arch/sh/cchips/hd6446x/hd64461/io.c | 11 +- arch/sh/cchips/hd6446x/hd64461/setup.c | 3 +- include/asm-sh/hd64461.h | 203 +++++++++++++++++++++++++++++++++ include/asm-sh/hd64461/hd64461.h | 202 -------------------------------- include/asm-sh/hd64461/io.h | 43 ------- include/asm-sh/hp6xx/io.h | 2 +- 6 files changed, 210 insertions(+), 254 deletions(-) create mode 100644 include/asm-sh/hd64461.h delete mode 100644 include/asm-sh/hd64461/hd64461.h delete mode 100644 include/asm-sh/hd64461/io.h (limited to 'include') diff --git a/arch/sh/cchips/hd6446x/hd64461/io.c b/arch/sh/cchips/hd6446x/hd64461/io.c index ac3062671db7..f77f18f2ba7f 100644 --- a/arch/sh/cchips/hd6446x/hd64461/io.c +++ b/arch/sh/cchips/hd6446x/hd64461/io.c @@ -1,11 +1,10 @@ /* - * $Id: io.c,v 1.6 2004/03/16 00:07:50 lethal Exp $ * Copyright (C) 2000 YAEGASHI Takeshi * Typical I/O routines for HD64461 system. */ #include -#include +#include #define MEM_BASE (CONFIG_HD64461_IOBASE - HD64461_STBCR) @@ -144,13 +143,13 @@ void hd64461_outsl(unsigned long port, const void *buffer, unsigned long count) while(count--) *addr=*buf++; } -unsigned short hd64461_readw(unsigned long addr) +unsigned short hd64461_readw(void __iomem *addr) { - return *(volatile unsigned short*)(MEM_BASE+addr); + return ctrl_inw(MEM_BASE+(unsigned long __force)addr); } -void hd64461_writew(unsigned short b, unsigned long addr) +void hd64461_writew(unsigned short b, void __iomem *addr) { - *(volatile unsigned short*)(MEM_BASE+addr) = b; + ctrl_outw(b, MEM_BASE+(unsigned long __force)addr); } diff --git a/arch/sh/cchips/hd6446x/hd64461/setup.c b/arch/sh/cchips/hd6446x/hd64461/setup.c index ad126016720f..6c961273a23a 100644 --- a/arch/sh/cchips/hd6446x/hd64461/setup.c +++ b/arch/sh/cchips/hd6446x/hd64461/setup.c @@ -14,8 +14,7 @@ #include #include - -#include +#include static void disable_hd64461_irq(unsigned int irq) { diff --git a/include/asm-sh/hd64461.h b/include/asm-sh/hd64461.h new file mode 100644 index 000000000000..0f2e2132cc35 --- /dev/null +++ b/include/asm-sh/hd64461.h @@ -0,0 +1,203 @@ +#ifndef __ASM_SH_HD64461 +#define __ASM_SH_HD64461 +/* + * $Id: hd64461.h,v 1.5 2004/03/16 00:07:51 lethal Exp $ + * Copyright (C) 2000 YAEGASHI Takeshi + * Hitachi HD64461 companion chip support + */ + +/* Constants for PCMCIA mappings */ +#define HD64461_PCC_WINDOW 0x01000000 + +#define HD64461_PCC0_BASE 0xb8000000 /* area 6 */ +#define HD64461_PCC0_ATTR (HD64461_PCC0_BASE) +#define HD64461_PCC0_COMM (HD64461_PCC0_BASE+HD64461_PCC_WINDOW) +#define HD64461_PCC0_IO (HD64461_PCC0_BASE+2*HD64461_PCC_WINDOW) + +#define HD64461_PCC1_BASE 0xb4000000 /* area 5 */ +#define HD64461_PCC1_ATTR (HD64461_PCC1_BASE) +#define HD64461_PCC1_COMM (HD64461_PCC1_BASE+HD64461_PCC_WINDOW) + +#define HD64461_STBCR 0x10000 +#define HD64461_STBCR_CKIO_STBY 0x2000 +#define HD64461_STBCR_SAFECKE_IST 0x1000 +#define HD64461_STBCR_SLCKE_IST 0x0800 +#define HD64461_STBCR_SAFECKE_OST 0x0400 +#define HD64461_STBCR_SLCKE_OST 0x0200 +#define HD64461_STBCR_SMIAST 0x0100 +#define HD64461_STBCR_SLCDST 0x0080 +#define HD64461_STBCR_SPC0ST 0x0040 +#define HD64461_STBCR_SPC1ST 0x0020 +#define HD64461_STBCR_SAFEST 0x0010 +#define HD64461_STBCR_STM0ST 0x0008 +#define HD64461_STBCR_STM1ST 0x0004 +#define HD64461_STBCR_SIRST 0x0002 +#define HD64461_STBCR_SURTST 0x0001 + +#define HD64461_SYSCR 0x10002 +#define HD64461_SCPUCR 0x10004 + +#define HD64461_LCDCBAR 0x11000 +#define HD64461_LCDCLOR 0x11002 +#define HD64461_LCDCCR 0x11004 +#define HD64461_LCDCCR_MOFF 0x80 + +#define HD64461_LDR1 0x11010 +#define HD64461_LDR1_DON 0x01 +#define HD64461_LDR1_DINV 0x80 + +#define HD64461_LDR2 0x11012 +#define HD64461_LDHNCR 0x11014 +#define HD64461_LDHNSR 0x11016 +#define HD64461_LDVNTR 0x11018 +#define HD64461_LDVNDR 0x1101a +#define HD64461_LDVSPR 0x1101c +#define HD64461_LDR3 0x1101e + +#define HD64461_CPTWAR 0x11030 +#define HD64461_CPTWDR 0x11032 +#define HD64461_CPTRAR 0x11034 +#define HD64461_CPTRDR 0x11036 + +#define HD64461_GRDOR 0x11040 +#define HD64461_GRSCR 0x11042 +#define HD64461_GRCFGR 0x11044 +#define HD64461_GRCFGR_ACCSTATUS 0x10 +#define HD64461_GRCFGR_ACCRESET 0x08 +#define HD64461_GRCFGR_ACCSTART_BITBLT 0x06 +#define HD64461_GRCFGR_ACCSTART_LINE 0x04 +#define HD64461_GRCFGR_COLORDEPTH16 0x01 + +#define HD64461_LNSARH 0x11046 +#define HD64461_LNSARL 0x11048 +#define HD64461_LNAXLR 0x1104a +#define HD64461_LNDGR 0x1104c +#define HD64461_LNAXR 0x1104e +#define HD64461_LNERTR 0x11050 +#define HD64461_LNMDR 0x11052 +#define HD64461_BBTSSARH 0x11054 +#define HD64461_BBTSSARL 0x11056 +#define HD64461_BBTDSARH 0x11058 +#define HD64461_BBTDSARL 0x1105a +#define HD64461_BBTDWR 0x1105c +#define HD64461_BBTDHR 0x1105e +#define HD64461_BBTPARH 0x11060 +#define HD64461_BBTPARL 0x11062 +#define HD64461_BBTMARH 0x11064 +#define HD64461_BBTMARL 0x11066 +#define HD64461_BBTROPR 0x11068 +#define HD64461_BBTMDR 0x1106a + +/* PC Card Controller Registers */ +#define HD64461_PCC0ISR 0x12000 /* socket 0 interface status */ +#define HD64461_PCC0GCR 0x12002 /* socket 0 general control */ +#define HD64461_PCC0CSCR 0x12004 /* socket 0 card status change */ +#define HD64461_PCC0CSCIER 0x12006 /* socket 0 card status change interrupt enable */ +#define HD64461_PCC0SCR 0x12008 /* socket 0 software control */ +#define HD64461_PCC1ISR 0x12010 /* socket 1 interface status */ +#define HD64461_PCC1GCR 0x12012 /* socket 1 general control */ +#define HD64461_PCC1CSCR 0x12014 /* socket 1 card status change */ +#define HD64461_PCC1CSCIER 0x12016 /* socket 1 card status change interrupt enable */ +#define HD64461_PCC1SCR 0x12018 /* socket 1 software control */ + +/* PCC Interface Status Register */ +#define HD64461_PCCISR_READY 0x80 /* card ready */ +#define HD64461_PCCISR_MWP 0x40 /* card write-protected */ +#define HD64461_PCCISR_VS2 0x20 /* voltage select pin 2 */ +#define HD64461_PCCISR_VS1 0x10 /* voltage select pin 1 */ +#define HD64461_PCCISR_CD2 0x08 /* card detect 2 */ +#define HD64461_PCCISR_CD1 0x04 /* card detect 1 */ +#define HD64461_PCCISR_BVD2 0x02 /* battery 1 */ +#define HD64461_PCCISR_BVD1 0x01 /* battery 1 */ + +#define HD64461_PCCISR_PCD_MASK 0x0c /* card detect */ +#define HD64461_PCCISR_BVD_MASK 0x03 /* battery voltage */ +#define HD64461_PCCISR_BVD_BATGOOD 0x03 /* battery good */ +#define HD64461_PCCISR_BVD_BATWARN 0x01 /* battery low warning */ +#define HD64461_PCCISR_BVD_BATDEAD1 0x02 /* battery dead */ +#define HD64461_PCCISR_BVD_BATDEAD2 0x00 /* battery dead */ + +/* PCC General Control Register */ +#define HD64461_PCCGCR_DRVE 0x80 /* output drive */ +#define HD64461_PCCGCR_PCCR 0x40 /* PC card reset */ +#define HD64461_PCCGCR_PCCT 0x20 /* PC card type, 1=IO&mem, 0=mem */ +#define HD64461_PCCGCR_VCC0 0x10 /* voltage control pin VCC0SEL0 */ +#define HD64461_PCCGCR_PMMOD 0x08 /* memory mode */ +#define HD64461_PCCGCR_PA25 0x04 /* pin A25 */ +#define HD64461_PCCGCR_PA24 0x02 /* pin A24 */ +#define HD64461_PCCGCR_REG 0x01 /* pin PCC0REG# */ + +/* PCC Card Status Change Register */ +#define HD64461_PCCCSCR_SCDI 0x80 /* sw card detect intr */ +#define HD64461_PCCCSCR_SRV1 0x40 /* reserved */ +#define HD64461_PCCCSCR_IREQ 0x20 /* IREQ intr req */ +#define HD64461_PCCCSCR_SC 0x10 /* STSCHG (status change) pin */ +#define HD64461_PCCCSCR_CDC 0x08 /* CD (card detect) change */ +#define HD64461_PCCCSCR_RC 0x04 /* READY change */ +#define HD64461_PCCCSCR_BW 0x02 /* battery warning change */ +#define HD64461_PCCCSCR_BD 0x01 /* battery dead change */ + +/* PCC Card Status Change Interrupt Enable Register */ +#define HD64461_PCCCSCIER_CRE 0x80 /* change reset enable */ +#define HD64461_PCCCSCIER_IREQE_MASK 0x60 /* IREQ enable */ +#define HD64461_PCCCSCIER_IREQE_DISABLED 0x00 /* IREQ disabled */ +#define HD64461_PCCCSCIER_IREQE_LEVEL 0x20 /* IREQ level-triggered */ +#define HD64461_PCCCSCIER_IREQE_FALLING 0x40 /* IREQ falling-edge-trig */ +#define HD64461_PCCCSCIER_IREQE_RISING 0x60 /* IREQ rising-edge-trig */ + +#define HD64461_PCCCSCIER_SCE 0x10 /* status change enable */ +#define HD64461_PCCCSCIER_CDE 0x08 /* card detect change enable */ +#define HD64461_PCCCSCIER_RE 0x04 /* ready change enable */ +#define HD64461_PCCCSCIER_BWE 0x02 /* battery warn change enable */ +#define HD64461_PCCCSCIER_BDE 0x01 /* battery dead change enable*/ + +/* PCC Software Control Register */ +#define HD64461_PCCSCR_VCC1 0x02 /* voltage control pin 1 */ +#define HD64461_PCCSCR_SWP 0x01 /* write protect */ + +#define HD64461_P0OCR 0x1202a +#define HD64461_P1OCR 0x1202c +#define HD64461_PGCR 0x1202e + +#define HD64461_GPACR 0x14000 +#define HD64461_GPBCR 0x14002 +#define HD64461_GPCCR 0x14004 +#define HD64461_GPDCR 0x14006 +#define HD64461_GPADR 0x14010 +#define HD64461_GPBDR 0x14012 +#define HD64461_GPCDR 0x14014 +#define HD64461_GPDDR 0x14016 +#define HD64461_GPAICR 0x14020 +#define HD64461_GPBICR 0x14022 +#define HD64461_GPCICR 0x14024 +#define HD64461_GPDICR 0x14026 +#define HD64461_GPAISR 0x14040 +#define HD64461_GPBISR 0x14042 +#define HD64461_GPCISR 0x14044 +#define HD64461_GPDISR 0x14046 + +#define HD64461_NIRR 0x15000 +#define HD64461_NIMR 0x15002 + +#define HD64461_IRQBASE OFFCHIP_IRQ_BASE +#define HD64461_IRQ_NUM 16 + +#define HD64461_IRQ_UART (HD64461_IRQBASE+5) +#define HD64461_IRQ_IRDA (HD64461_IRQBASE+6) +#define HD64461_IRQ_TMU1 (HD64461_IRQBASE+9) +#define HD64461_IRQ_TMU0 (HD64461_IRQBASE+10) +#define HD64461_IRQ_GPIO (HD64461_IRQBASE+11) +#define HD64461_IRQ_AFE (HD64461_IRQBASE+12) +#define HD64461_IRQ_PCC1 (HD64461_IRQBASE+13) +#define HD64461_IRQ_PCC0 (HD64461_IRQBASE+14) + +#define __IO_PREFIX hd64461 +#include + +/* arch/sh/cchips/hd6446x/hd64461/setup.c */ +int hd64461_irq_demux(int irq); +void hd64461_register_irq_demux(int irq, + int (*demux) (int irq, void *dev), void *dev); +void hd64461_unregister_irq_demux(int irq); + +#endif diff --git a/include/asm-sh/hd64461/hd64461.h b/include/asm-sh/hd64461/hd64461.h deleted file mode 100644 index 87f13d24c630..000000000000 --- a/include/asm-sh/hd64461/hd64461.h +++ /dev/null @@ -1,202 +0,0 @@ -#ifndef __ASM_SH_HD64461 -#define __ASM_SH_HD64461 -/* - * $Id: hd64461.h,v 1.5 2004/03/16 00:07:51 lethal Exp $ - * Copyright (C) 2000 YAEGASHI Takeshi - * Hitachi HD64461 companion chip support - */ - -/* Constants for PCMCIA mappings */ -#define HD64461_PCC_WINDOW 0x01000000 - -#define HD64461_PCC0_BASE 0xb8000000 /* area 6 */ -#define HD64461_PCC0_ATTR (HD64461_PCC0_BASE) -#define HD64461_PCC0_COMM (HD64461_PCC0_BASE+HD64461_PCC_WINDOW) -#define HD64461_PCC0_IO (HD64461_PCC0_BASE+2*HD64461_PCC_WINDOW) - -#define HD64461_PCC1_BASE 0xb4000000 /* area 5 */ -#define HD64461_PCC1_ATTR (HD64461_PCC1_BASE) -#define HD64461_PCC1_COMM (HD64461_PCC1_BASE+HD64461_PCC_WINDOW) - -#define HD64461_STBCR 0x10000 -#define HD64461_STBCR_CKIO_STBY 0x2000 -#define HD64461_STBCR_SAFECKE_IST 0x1000 -#define HD64461_STBCR_SLCKE_IST 0x0800 -#define HD64461_STBCR_SAFECKE_OST 0x0400 -#define HD64461_STBCR_SLCKE_OST 0x0200 -#define HD64461_STBCR_SMIAST 0x0100 -#define HD64461_STBCR_SLCDST 0x0080 -#define HD64461_STBCR_SPC0ST 0x0040 -#define HD64461_STBCR_SPC1ST 0x0020 -#define HD64461_STBCR_SAFEST 0x0010 -#define HD64461_STBCR_STM0ST 0x0008 -#define HD64461_STBCR_STM1ST 0x0004 -#define HD64461_STBCR_SIRST 0x0002 -#define HD64461_STBCR_SURTST 0x0001 - -#define HD64461_SYSCR 0x10002 -#define HD64461_SCPUCR 0x10004 - -#define HD64461_LCDCBAR 0x11000 -#define HD64461_LCDCLOR 0x11002 -#define HD64461_LCDCCR 0x11004 -#define HD64461_LCDCCR_MOFF 0x80 - -#define HD64461_LDR1 0x11010 -#define HD64461_LDR1_DON 0x01 -#define HD64461_LDR1_DINV 0x80 - -#define HD64461_LDR2 0x11012 -#define HD64461_LDHNCR 0x11014 -#define HD64461_LDHNSR 0x11016 -#define HD64461_LDVNTR 0x11018 -#define HD64461_LDVNDR 0x1101a -#define HD64461_LDVSPR 0x1101c -#define HD64461_LDR3 0x1101e - -#define HD64461_CPTWAR 0x11030 -#define HD64461_CPTWDR 0x11032 -#define HD64461_CPTRAR 0x11034 -#define HD64461_CPTRDR 0x11036 - -#define HD64461_GRDOR 0x11040 -#define HD64461_GRSCR 0x11042 -#define HD64461_GRCFGR 0x11044 -#define HD64461_GRCFGR_ACCSTATUS 0x10 -#define HD64461_GRCFGR_ACCRESET 0x08 -#define HD64461_GRCFGR_ACCSTART_BITBLT 0x06 -#define HD64461_GRCFGR_ACCSTART_LINE 0x04 -#define HD64461_GRCFGR_COLORDEPTH16 0x01 - -#define HD64461_LNSARH 0x11046 -#define HD64461_LNSARL 0x11048 -#define HD64461_LNAXLR 0x1104a -#define HD64461_LNDGR 0x1104c -#define HD64461_LNAXR 0x1104e -#define HD64461_LNERTR 0x11050 -#define HD64461_LNMDR 0x11052 -#define HD64461_BBTSSARH 0x11054 -#define HD64461_BBTSSARL 0x11056 -#define HD64461_BBTDSARH 0x11058 -#define HD64461_BBTDSARL 0x1105a -#define HD64461_BBTDWR 0x1105c -#define HD64461_BBTDHR 0x1105e -#define HD64461_BBTPARH 0x11060 -#define HD64461_BBTPARL 0x11062 -#define HD64461_BBTMARH 0x11064 -#define HD64461_BBTMARL 0x11066 -#define HD64461_BBTROPR 0x11068 -#define HD64461_BBTMDR 0x1106a - -/* PC Card Controller Registers */ -#define HD64461_PCC0ISR 0x12000 /* socket 0 interface status */ -#define HD64461_PCC0GCR 0x12002 /* socket 0 general control */ -#define HD64461_PCC0CSCR 0x12004 /* socket 0 card status change */ -#define HD64461_PCC0CSCIER 0x12006 /* socket 0 card status change interrupt enable */ -#define HD64461_PCC0SCR 0x12008 /* socket 0 software control */ -#define HD64461_PCC1ISR 0x12010 /* socket 1 interface status */ -#define HD64461_PCC1GCR 0x12012 /* socket 1 general control */ -#define HD64461_PCC1CSCR 0x12014 /* socket 1 card status change */ -#define HD64461_PCC1CSCIER 0x12016 /* socket 1 card status change interrupt enable */ -#define HD64461_PCC1SCR 0x12018 /* socket 1 software control */ - -/* PCC Interface Status Register */ -#define HD64461_PCCISR_READY 0x80 /* card ready */ -#define HD64461_PCCISR_MWP 0x40 /* card write-protected */ -#define HD64461_PCCISR_VS2 0x20 /* voltage select pin 2 */ -#define HD64461_PCCISR_VS1 0x10 /* voltage select pin 1 */ -#define HD64461_PCCISR_CD2 0x08 /* card detect 2 */ -#define HD64461_PCCISR_CD1 0x04 /* card detect 1 */ -#define HD64461_PCCISR_BVD2 0x02 /* battery 1 */ -#define HD64461_PCCISR_BVD1 0x01 /* battery 1 */ - -#define HD64461_PCCISR_PCD_MASK 0x0c /* card detect */ -#define HD64461_PCCISR_BVD_MASK 0x03 /* battery voltage */ -#define HD64461_PCCISR_BVD_BATGOOD 0x03 /* battery good */ -#define HD64461_PCCISR_BVD_BATWARN 0x01 /* battery low warning */ -#define HD64461_PCCISR_BVD_BATDEAD1 0x02 /* battery dead */ -#define HD64461_PCCISR_BVD_BATDEAD2 0x00 /* battery dead */ - -/* PCC General Control Register */ -#define HD64461_PCCGCR_DRVE 0x80 /* output drive */ -#define HD64461_PCCGCR_PCCR 0x40 /* PC card reset */ -#define HD64461_PCCGCR_PCCT 0x20 /* PC card type, 1=IO&mem, 0=mem */ -#define HD64461_PCCGCR_VCC0 0x10 /* voltage control pin VCC0SEL0 */ -#define HD64461_PCCGCR_PMMOD 0x08 /* memory mode */ -#define HD64461_PCCGCR_PA25 0x04 /* pin A25 */ -#define HD64461_PCCGCR_PA24 0x02 /* pin A24 */ -#define HD64461_PCCGCR_REG 0x01 /* pin PCC0REG# */ - -/* PCC Card Status Change Register */ -#define HD64461_PCCCSCR_SCDI 0x80 /* sw card detect intr */ -#define HD64461_PCCCSCR_SRV1 0x40 /* reserved */ -#define HD64461_PCCCSCR_IREQ 0x20 /* IREQ intr req */ -#define HD64461_PCCCSCR_SC 0x10 /* STSCHG (status change) pin */ -#define HD64461_PCCCSCR_CDC 0x08 /* CD (card detect) change */ -#define HD64461_PCCCSCR_RC 0x04 /* READY change */ -#define HD64461_PCCCSCR_BW 0x02 /* battery warning change */ -#define HD64461_PCCCSCR_BD 0x01 /* battery dead change */ - -/* PCC Card Status Change Interrupt Enable Register */ -#define HD64461_PCCCSCIER_CRE 0x80 /* change reset enable */ -#define HD64461_PCCCSCIER_IREQE_MASK 0x60 /* IREQ enable */ -#define HD64461_PCCCSCIER_IREQE_DISABLED 0x00 /* IREQ disabled */ -#define HD64461_PCCCSCIER_IREQE_LEVEL 0x20 /* IREQ level-triggered */ -#define HD64461_PCCCSCIER_IREQE_FALLING 0x40 /* IREQ falling-edge-trig */ -#define HD64461_PCCCSCIER_IREQE_RISING 0x60 /* IREQ rising-edge-trig */ - -#define HD64461_PCCCSCIER_SCE 0x10 /* status change enable */ -#define HD64461_PCCCSCIER_CDE 0x08 /* card detect change enable */ -#define HD64461_PCCCSCIER_RE 0x04 /* ready change enable */ -#define HD64461_PCCCSCIER_BWE 0x02 /* battery warn change enable */ -#define HD64461_PCCCSCIER_BDE 0x01 /* battery dead change enable*/ - -/* PCC Software Control Register */ -#define HD64461_PCCSCR_VCC1 0x02 /* voltage control pin 1 */ -#define HD64461_PCCSCR_SWP 0x01 /* write protect */ - - -#define HD64461_P0OCR 0x1202a -#define HD64461_P1OCR 0x1202c -#define HD64461_PGCR 0x1202e - -#define HD64461_GPACR 0x14000 -#define HD64461_GPBCR 0x14002 -#define HD64461_GPCCR 0x14004 -#define HD64461_GPDCR 0x14006 -#define HD64461_GPADR 0x14010 -#define HD64461_GPBDR 0x14012 -#define HD64461_GPCDR 0x14014 -#define HD64461_GPDDR 0x14016 -#define HD64461_GPAICR 0x14020 -#define HD64461_GPBICR 0x14022 -#define HD64461_GPCICR 0x14024 -#define HD64461_GPDICR 0x14026 -#define HD64461_GPAISR 0x14040 -#define HD64461_GPBISR 0x14042 -#define HD64461_GPCISR 0x14044 -#define HD64461_GPDISR 0x14046 - -#define HD64461_NIRR 0x15000 -#define HD64461_NIMR 0x15002 - -#ifndef CONFIG_HD64461_IOBASE -#define CONFIG_HD64461_IOBASE 0xb0000000 -#endif -#ifndef CONFIG_HD64461_IRQ -#define CONFIG_HD64461_IRQ 36 -#endif - -#define HD64461_IRQBASE OFFCHIP_IRQ_BASE -#define HD64461_IRQ_NUM 16 - -#define HD64461_IRQ_UART (HD64461_IRQBASE+5) -#define HD64461_IRQ_IRDA (HD64461_IRQBASE+6) -#define HD64461_IRQ_TMU1 (HD64461_IRQBASE+9) -#define HD64461_IRQ_TMU0 (HD64461_IRQBASE+10) -#define HD64461_IRQ_GPIO (HD64461_IRQBASE+11) -#define HD64461_IRQ_AFE (HD64461_IRQBASE+12) -#define HD64461_IRQ_PCC1 (HD64461_IRQBASE+13) -#define HD64461_IRQ_PCC0 (HD64461_IRQBASE+14) - -#endif diff --git a/include/asm-sh/hd64461/io.h b/include/asm-sh/hd64461/io.h deleted file mode 100644 index 67f2489088d9..000000000000 --- a/include/asm-sh/hd64461/io.h +++ /dev/null @@ -1,43 +0,0 @@ -/* - * include/asm-sh/io_hd64461.h - * - * Copyright 2000 Stuart Menefy (stuart.menefy@st.com) - * - * May be copied or modified under the terms of the GNU General Public - * License. See linux/COPYING for more information. - * - * IO functions for an HD64461 - */ - -#ifndef _ASM_SH_IO_HD64461_H -#define _ASM_SH_IO_HD64461_H - -extern unsigned char hd64461_inb(unsigned long port); -extern unsigned short hd64461_inw(unsigned long port); -extern unsigned int hd64461_inl(unsigned long port); - -extern void hd64461_outb(unsigned char value, unsigned long port); -extern void hd64461_outw(unsigned short value, unsigned long port); -extern void hd64461_outl(unsigned int value, unsigned long port); - -extern unsigned char hd64461_inb_p(unsigned long port); -extern void hd64461_outb_p(unsigned char value, unsigned long port); - -extern void hd64461_insb(unsigned long port, void *addr, unsigned long count); -extern void hd64461_insw(unsigned long port, void *addr, unsigned long count); -extern void hd64461_insl(unsigned long port, void *addr, unsigned long count); - -extern void hd64461_outsb(unsigned long port, const void *buffer, unsigned long count); -extern void hd64461_outsw(unsigned long port, const void *buffer, unsigned long count); -extern void hd64461_outsl(unsigned long port, const void *buffer, unsigned long count); - -extern unsigned short hd64461_readw(unsigned long addr); -extern void hd64461_writew(unsigned short b, unsigned long addr); - - -extern int hd64461_irq_demux(int irq); -extern void hd64461_register_irq_demux(int irq, - int (*demux)(int irq, void *dev), void *dev); -extern void hd64461_unregister_irq_demux(int irq); - -#endif /* _ASM_SH_IO_HD64461_H */ diff --git a/include/asm-sh/hp6xx/io.h b/include/asm-sh/hp6xx/io.h index 731798003550..2044476ab199 100644 --- a/include/asm-sh/hp6xx/io.h +++ b/include/asm-sh/hp6xx/io.h @@ -4,7 +4,7 @@ /* * Nothing special here.. just use the generic cchip io routines. */ -#include +#include #endif /* __ASM_SH_HP6XX_IO_H */ -- cgit v1.2.3 From e8fb67f8e05bb1f4c07c3585967cfc6d44822ab0 Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Wed, 27 Sep 2006 13:56:28 +0900 Subject: sh: HS7751RVoIP board updates. Various cleanups for HS7751RVoIP. Mostly just getting rid of the old mach.c and splitting codec configuration in to its own Kconfig. Signed-off-by: Paul Mundt --- arch/sh/Kconfig | 2 +- arch/sh/boards/renesas/hs7751rvoip/Kconfig | 12 ++++++ arch/sh/boards/renesas/hs7751rvoip/Makefile | 2 +- arch/sh/boards/renesas/hs7751rvoip/mach.c | 54 ------------------------- arch/sh/boards/renesas/hs7751rvoip/setup.c | 63 +++++++++++++++++++++++------ include/asm-sh/hs7751rvoip/hs7751rvoip.h | 6 +++ 6 files changed, 71 insertions(+), 68 deletions(-) create mode 100644 arch/sh/boards/renesas/hs7751rvoip/Kconfig delete mode 100644 arch/sh/boards/renesas/hs7751rvoip/mach.c (limited to 'include') diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig index 1a0db1d4c952..cbf0d527e991 100644 --- a/arch/sh/Kconfig +++ b/arch/sh/Kconfig @@ -400,7 +400,7 @@ config SH_TMU endmenu -#source "arch/sh/boards/renesas/hs7751rvoip/Kconfig" +source "arch/sh/boards/renesas/hs7751rvoip/Kconfig" #source "arch/sh/boards/renesas/rts7751r2d/Kconfig" diff --git a/arch/sh/boards/renesas/hs7751rvoip/Kconfig b/arch/sh/boards/renesas/hs7751rvoip/Kconfig new file mode 100644 index 000000000000..1743be477be5 --- /dev/null +++ b/arch/sh/boards/renesas/hs7751rvoip/Kconfig @@ -0,0 +1,12 @@ +if SH_HS7751RVOIP + +menu "HS7751RVoIP options" + +config HS7751RVOIP_CODEC + bool "Support VoIP Codec section" + help + Selecting this option will support CODEC section. + +endmenu + +endif diff --git a/arch/sh/boards/renesas/hs7751rvoip/Makefile b/arch/sh/boards/renesas/hs7751rvoip/Makefile index 3ef8cbaa0b37..bede2d54fd6c 100644 --- a/arch/sh/boards/renesas/hs7751rvoip/Makefile +++ b/arch/sh/boards/renesas/hs7751rvoip/Makefile @@ -2,7 +2,7 @@ # Makefile for the HS7751RVoIP specific parts of the kernel # -obj-y := mach.o setup.o io.o irq.o led.o +obj-y := setup.o io.o irq.o led.o obj-$(CONFIG_PCI) += pci.o diff --git a/arch/sh/boards/renesas/hs7751rvoip/mach.c b/arch/sh/boards/renesas/hs7751rvoip/mach.c deleted file mode 100644 index caf967f77c61..000000000000 --- a/arch/sh/boards/renesas/hs7751rvoip/mach.c +++ /dev/null @@ -1,54 +0,0 @@ -/* - * linux/arch/sh/kernel/mach_hs7751rvoip.c - * - * Minor tweak of mach_se.c file to reference hs7751rvoip-specific items. - * - * May be copied or modified under the terms of the GNU General Public - * License. See linux/COPYING for more information. - * - * Machine vector for the Renesas Technology sales HS7751RVoIP - */ - -#include - -#include -#include -#include -#include - -extern void init_hs7751rvoip_IRQ(void); -extern void *hs7751rvoip_ioremap(unsigned long, unsigned long); - -/* - * The Machine Vector - */ - -struct sh_machine_vector mv_hs7751rvoip __initmv = { - .mv_nr_irqs = 72, - - .mv_inb = hs7751rvoip_inb, - .mv_inw = hs7751rvoip_inw, - .mv_inl = hs7751rvoip_inl, - .mv_outb = hs7751rvoip_outb, - .mv_outw = hs7751rvoip_outw, - .mv_outl = hs7751rvoip_outl, - - .mv_inb_p = hs7751rvoip_inb_p, - .mv_inw_p = hs7751rvoip_inw, - .mv_inl_p = hs7751rvoip_inl, - .mv_outb_p = hs7751rvoip_outb_p, - .mv_outw_p = hs7751rvoip_outw, - .mv_outl_p = hs7751rvoip_outl, - - .mv_insb = hs7751rvoip_insb, - .mv_insw = hs7751rvoip_insw, - .mv_insl = hs7751rvoip_insl, - .mv_outsb = hs7751rvoip_outsb, - .mv_outsw = hs7751rvoip_outsw, - .mv_outsl = hs7751rvoip_outsl, - - .mv_ioremap = hs7751rvoip_ioremap, - .mv_isa_port2addr = hs7751rvoip_isa_port2addr, - .mv_init_irq = init_hs7751rvoip_IRQ, -}; -ALIAS_MV(hs7751rvoip) diff --git a/arch/sh/boards/renesas/hs7751rvoip/setup.c b/arch/sh/boards/renesas/hs7751rvoip/setup.c index 7ce577822dc0..813fc4d5862a 100644 --- a/arch/sh/boards/renesas/hs7751rvoip/setup.c +++ b/arch/sh/boards/renesas/hs7751rvoip/setup.c @@ -17,14 +17,55 @@ #include #include #include -#include #include - -/* defined in mm/ioremap.c */ -extern void * p3_ioremap(unsigned long phys_addr, unsigned long size, unsigned long flags); +#include +#include +#include +#include +#include unsigned int debug_counter; +static void __init hs7751rvoip_init_irq(void) +{ +#if defined(CONFIG_HS7751RVOIP_CODEC) + make_ipr_irq(DMTE0_IRQ, DMA_IPR_ADDR, DMA_IPR_POS, DMA_PRIORITY); + make_ipr_irq(DMTE1_IRQ, DMA_IPR_ADDR, DMA_IPR_POS, DMA_PRIORITY); +#endif + + init_hs7751rvoip_IRQ(); +} + +struct sh_machine_vector mv_hs7751rvoip __initmv = { + .mv_nr_irqs = 72, + + .mv_inb = hs7751rvoip_inb, + .mv_inw = hs7751rvoip_inw, + .mv_inl = hs7751rvoip_inl, + .mv_outb = hs7751rvoip_outb, + .mv_outw = hs7751rvoip_outw, + .mv_outl = hs7751rvoip_outl, + + .mv_inb_p = hs7751rvoip_inb_p, + .mv_inw_p = hs7751rvoip_inw, + .mv_inl_p = hs7751rvoip_inl, + .mv_outb_p = hs7751rvoip_outb_p, + .mv_outw_p = hs7751rvoip_outw, + .mv_outl_p = hs7751rvoip_outl, + + .mv_insb = hs7751rvoip_insb, + .mv_insw = hs7751rvoip_insw, + .mv_insl = hs7751rvoip_insl, + .mv_outsb = hs7751rvoip_outsb, + .mv_outsw = hs7751rvoip_outsw, + .mv_outsl = hs7751rvoip_outsl, + + .mv_ioremap = hs7751rvoip_ioremap, + .mv_isa_port2addr = hs7751rvoip_isa_port2addr, + .mv_init_irq = hs7751rvoip_init_irq, +}; +ALIAS_MV(hs7751rvoip) + const char *get_system_type(void) { return "HS7751RVoIP"; @@ -51,16 +92,15 @@ void *area6_io8_base; void *area5_io16_base; void *area6_io16_base; -int __init cf_init(void) +static int __init hs7751rvoip_cf_init(void) { pgprot_t prot; - unsigned long paddrbase, psize; + unsigned long paddrbase; /* open I/O area window */ paddrbase = virt_to_phys((void *)(PA_AREA5_IO+0x00000800)); - psize = PAGE_SIZE; prot = PAGE_KERNEL_PCC(1, _PAGE_PCC_COM16); - area5_io16_base = p3_ioremap(paddrbase, psize, prot.pgprot); + area5_io16_base = p3_ioremap(paddrbase, PAGE_SIZE, prot.pgprot); if (!area5_io16_base) { printk("allocate_cf_area : can't open CF I/O window!\n"); return -ENOMEM; @@ -69,19 +109,18 @@ int __init cf_init(void) /* XXX : do we need attribute and common-memory area also? */ paddrbase = virt_to_phys((void *)PA_AREA6_IO); - psize = PAGE_SIZE; #if defined(CONFIG_HS7751RVOIP_CODEC) prot = PAGE_KERNEL_PCC(0, _PAGE_PCC_COM8); #else prot = PAGE_KERNEL_PCC(0, _PAGE_PCC_IO8); #endif - area6_io8_base = p3_ioremap(paddrbase, psize, prot.pgprot); + area6_io8_base = p3_ioremap(paddrbase, PAGE_SIZE, prot.pgprot); if (!area6_io8_base) { printk("allocate_cf_area : can't open CODEC I/O 8bit window!\n"); return -ENOMEM; } prot = PAGE_KERNEL_PCC(0, _PAGE_PCC_IO16); - area6_io16_base = p3_ioremap(paddrbase, psize, prot.pgprot); + area6_io16_base = p3_ioremap(paddrbase, PAGE_SIZE, prot.pgprot); if (!area6_io16_base) { printk("allocate_cf_area : can't open CODEC I/O 16bit window!\n"); return -ENOMEM; @@ -90,4 +129,4 @@ int __init cf_init(void) return 0; } -__initcall (cf_init); +__initcall(hs7751rvoip_cf_init); diff --git a/include/asm-sh/hs7751rvoip/hs7751rvoip.h b/include/asm-sh/hs7751rvoip/hs7751rvoip.h index 5f995f937a44..857cc2ebbc69 100644 --- a/include/asm-sh/hs7751rvoip/hs7751rvoip.h +++ b/include/asm-sh/hs7751rvoip/hs7751rvoip.h @@ -44,4 +44,10 @@ #define IRQ_RINGING 4 /* Ringing IRQ */ #define IRQ_CODEC 5 /* CODEC IRQ */ +/* arch/sh/boards/renesas/hs7751rvoip/irq.c */ +void init_hs7751rvoip_IRQ(void); + +/* arch/sh/boards/renesas/hs7751rvoip/io.c */ +void *hs7751rvoip_ioremap(unsigned long, unsigned long); + #endif /* __ASM_SH_RENESAS_HS7751RVOIP */ -- cgit v1.2.3 From fdfc74f9fcebdda14609159d5010b758a9409acf Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Wed, 27 Sep 2006 14:05:52 +0900 Subject: sh: Support for SH-4A memory barriers. SH-4A supports 'synco' as a barrier, sprinkle it around the cache ops as necessary.. Signed-off-by: Paul Mundt --- arch/sh/mm/cache-sh4.c | 5 +++++ include/asm-sh/system.h | 7 +++++++ 2 files changed, 12 insertions(+) (limited to 'include') diff --git a/arch/sh/mm/cache-sh4.c b/arch/sh/mm/cache-sh4.c index 94c05d09c3f7..846b63d6f5e8 100644 --- a/arch/sh/mm/cache-sh4.c +++ b/arch/sh/mm/cache-sh4.c @@ -184,6 +184,7 @@ void flush_cache_sigtramp(unsigned long addr) i++, index += cpu_data->icache.way_incr) ctrl_outl(0, index); /* Clear out Valid-bit */ back_to_P1(); + wmb(); local_irq_restore(flags); } @@ -223,6 +224,8 @@ void flush_dcache_page(struct page *page) flush_cache_4096(CACHE_OC_ADDRESS_ARRAY | 0x2000, phys); flush_cache_4096(CACHE_OC_ADDRESS_ARRAY | 0x3000, phys); } + + wmb(); } static inline void flush_icache_all(void) @@ -247,6 +250,7 @@ void flush_dcache_all(void) __flush_dcache_all(); else __flush_dcache_all_ex(); + wmb(); } void flush_cache_all(void) @@ -377,5 +381,6 @@ void flush_icache_user_range(struct vm_area_struct *vma, struct page *page, unsigned long addr, int len) { flush_cache_page(vma, addr, page_to_pfn(page)); + mb(); } diff --git a/include/asm-sh/system.h b/include/asm-sh/system.h index e89728d405d8..eb4902ed920a 100644 --- a/include/asm-sh/system.h +++ b/include/asm-sh/system.h @@ -84,10 +84,17 @@ static __inline__ unsigned long tas(volatile int *m) extern void __xchg_called_with_bad_pointer(void); +#ifdef CONFIG_CPU_SH4A +#define mb() __asm__ __volatile__ ("synco": : :"memory") +#define rmb() mb() +#define wmb() __asm__ __volatile__ ("synco": : :"memory") +#define read_barrier_depends() do { } while(0) +#else #define mb() __asm__ __volatile__ ("": : :"memory") #define rmb() mb() #define wmb() __asm__ __volatile__ ("": : :"memory") #define read_barrier_depends() do { } while(0) +#endif #ifdef CONFIG_SMP #define smp_mb() mb() -- cgit v1.2.3 From b638d0b921dc95229af0dfd09cd24850336a2f75 Mon Sep 17 00:00:00 2001 From: Richard Curnow Date: Wed, 27 Sep 2006 14:09:26 +0900 Subject: sh: Optimized cache handling for SH-4/SH-4A caches. This reworks some of the SH-4 cache handling code to more easily accomodate newer-style caches (particularly for the > direct-mapped case), as well as optimizing some of the old code. Signed-off-by: Richard Curnow Signed-off-by: Paul Mundt --- arch/sh/kernel/cpu/init.c | 16 +- arch/sh/kernel/cpu/sh4/probe.c | 11 + arch/sh/mm/cache-sh4.c | 517 ++++++++++++++++++++++++++++++++++------- arch/sh/mm/clear_page.S | 99 +------- include/asm-sh/cache.h | 22 +- 5 files changed, 475 insertions(+), 190 deletions(-) (limited to 'include') diff --git a/arch/sh/kernel/cpu/init.c b/arch/sh/kernel/cpu/init.c index 868e68b28880..731dd61419dd 100644 --- a/arch/sh/kernel/cpu/init.c +++ b/arch/sh/kernel/cpu/init.c @@ -4,6 +4,7 @@ * CPU init code * * Copyright (C) 2002, 2003 Paul Mundt + * Copyright (C) 2003 Richard Curnow * * 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 @@ -51,7 +52,15 @@ static void __init cache_init(void) ccr = ctrl_inl(CCR); /* - * If the cache is already enabled .. flush it. + * At this point we don't know whether the cache is enabled or not - a + * bootloader may have enabled it. There are at least 2 things that + * could be dirty in the cache at this point: + * 1. kernel command line set up by boot loader + * 2. spilled registers from the prolog of this function + * => before re-initialising the cache, we must do a purge of the whole + * cache out to memory for safety. As long as nothing is spilled + * during the loop to lines that have already been done, this is safe. + * - RPC */ if (ccr & CCR_CACHE_ENABLE) { unsigned long ways, waysize, addrstart; @@ -98,6 +107,8 @@ static void __init cache_init(void) /* Force EMODE if possible */ if (cpu_data->dcache.ways > 1) flags |= CCR_CACHE_EMODE; + else + flags &= ~CCR_CACHE_EMODE; #endif #ifdef CONFIG_SH_WRITETHROUGH @@ -112,6 +123,9 @@ static void __init cache_init(void) /* Turn on OCRAM -- halve the OC */ flags |= CCR_CACHE_ORA; cpu_data->dcache.sets >>= 1; + + cpu_data->dcache.way_size = cpu_data->dcache.sets * + cpu_data->dcache.linesz; #endif ctrl_outl(flags, CCR); diff --git a/arch/sh/kernel/cpu/sh4/probe.c b/arch/sh/kernel/cpu/sh4/probe.c index 42427b79697b..1208da8fe5db 100644 --- a/arch/sh/kernel/cpu/sh4/probe.c +++ b/arch/sh/kernel/cpu/sh4/probe.c @@ -113,6 +113,11 @@ int __init detect_cpu_and_cache_system(void) break; } +#ifdef CONFIG_SH_DIRECT_MAPPED + cpu_data->icache.ways = 1; + cpu_data->dcache.ways = 1; +#endif + /* * On anything that's not a direct-mapped cache, look to the CVR * for I/D-cache specifics. @@ -125,6 +130,9 @@ int __init detect_cpu_and_cache_system(void) (cpu_data->icache.way_incr - (1 << 5)); } + cpu_data->icache.way_size = cpu_data->icache.sets * + cpu_data->icache.linesz; + if (cpu_data->dcache.ways > 1) { size = sizes[(cvr >> 16) & 0xf]; cpu_data->dcache.way_incr = (size >> 1); @@ -133,6 +141,9 @@ int __init detect_cpu_and_cache_system(void) (cpu_data->dcache.way_incr - (1 << 5)); } + cpu_data->dcache.way_size = cpu_data->dcache.sets * + cpu_data->dcache.linesz; + return 0; } diff --git a/arch/sh/mm/cache-sh4.c b/arch/sh/mm/cache-sh4.c index 846b63d6f5e8..c036c2b4ac2b 100644 --- a/arch/sh/mm/cache-sh4.c +++ b/arch/sh/mm/cache-sh4.c @@ -25,28 +25,95 @@ #include #include -extern void __flush_cache_4096(unsigned long addr, unsigned long phys, +static void __flush_dcache_segment_1way(unsigned long start, + unsigned long extent); +static void __flush_dcache_segment_2way(unsigned long start, + unsigned long extent); +static void __flush_dcache_segment_4way(unsigned long start, + unsigned long extent); + +static void __flush_cache_4096(unsigned long addr, unsigned long phys, unsigned long exec_offset); -extern void __flush_cache_4096_all(unsigned long start); -static void __flush_cache_4096_all_ex(unsigned long start); -extern void __flush_dcache_all(void); -static void __flush_dcache_all_ex(void); + +/* + * This is initialised here to ensure that it is not placed in the BSS. If + * that were to happen, note that cache_init gets called before the BSS is + * cleared, so this would get nulled out which would be hopeless. + */ +static void (*__flush_dcache_segment_fn)(unsigned long, unsigned long) = + (void (*)(unsigned long, unsigned long))0xdeadbeef; + +static void compute_alias(struct cache_info *c) +{ + c->alias_mask = ((c->sets - 1) << c->entry_shift) & ~(PAGE_SIZE - 1); + c->n_aliases = (c->alias_mask >> PAGE_SHIFT) + 1; +} + +static void __init emit_cache_params(void) +{ + printk("PVR=%08x CVR=%08x PRR=%08x\n", + ctrl_inl(CCN_PVR), + ctrl_inl(CCN_CVR), + ctrl_inl(CCN_PRR)); + printk("I-cache : n_ways=%d n_sets=%d way_incr=%d\n", + cpu_data->icache.ways, + cpu_data->icache.sets, + cpu_data->icache.way_incr); + printk("I-cache : entry_mask=0x%08x alias_mask=0x%08x n_aliases=%d\n", + cpu_data->icache.entry_mask, + cpu_data->icache.alias_mask, + cpu_data->icache.n_aliases); + printk("D-cache : n_ways=%d n_sets=%d way_incr=%d\n", + cpu_data->dcache.ways, + cpu_data->dcache.sets, + cpu_data->dcache.way_incr); + printk("D-cache : entry_mask=0x%08x alias_mask=0x%08x n_aliases=%d\n", + cpu_data->dcache.entry_mask, + cpu_data->dcache.alias_mask, + cpu_data->dcache.n_aliases); + + if (!__flush_dcache_segment_fn) + panic("unknown number of cache ways\n"); +} /* * SH-4 has virtually indexed and physically tagged cache. */ -struct semaphore p3map_sem[4]; +/* Worst case assumed to be 64k cache, direct-mapped i.e. 4 synonym bits. */ +#define MAX_P3_SEMAPHORES 16 + +struct semaphore p3map_sem[MAX_P3_SEMAPHORES]; void __init p3_cache_init(void) { - if (remap_area_pages(P3SEG, 0, PAGE_SIZE*4, _PAGE_CACHABLE)) + int i; + + compute_alias(&cpu_data->icache); + compute_alias(&cpu_data->dcache); + + switch (cpu_data->dcache.ways) { + case 1: + __flush_dcache_segment_fn = __flush_dcache_segment_1way; + break; + case 2: + __flush_dcache_segment_fn = __flush_dcache_segment_2way; + break; + case 4: + __flush_dcache_segment_fn = __flush_dcache_segment_4way; + break; + default: + __flush_dcache_segment_fn = NULL; + break; + } + + emit_cache_params(); + + if (remap_area_pages(P3SEG, 0, PAGE_SIZE * 4, _PAGE_CACHABLE)) panic("%s failed.", __FUNCTION__); - sema_init (&p3map_sem[0], 1); - sema_init (&p3map_sem[1], 1); - sema_init (&p3map_sem[2], 1); - sema_init (&p3map_sem[3], 1); + for (i = 0; i < cpu_data->dcache.n_aliases; i++) + sema_init(&p3map_sem[i], 1); } /* @@ -91,7 +158,6 @@ void __flush_purge_region(void *start, int size) } } - /* * No write back please */ @@ -110,46 +176,6 @@ void __flush_invalidate_region(void *start, int size) } } -static void __flush_dcache_all_ex(void) -{ - unsigned long addr, end_addr, entry_offset; - - end_addr = CACHE_OC_ADDRESS_ARRAY + - (cpu_data->dcache.sets << cpu_data->dcache.entry_shift) * - cpu_data->dcache.ways; - - entry_offset = 1 << cpu_data->dcache.entry_shift; - for (addr = CACHE_OC_ADDRESS_ARRAY; - addr < end_addr; - addr += entry_offset) { - ctrl_outl(0, addr); - } -} - -static void __flush_cache_4096_all_ex(unsigned long start) -{ - unsigned long addr, entry_offset; - int i; - - entry_offset = 1 << cpu_data->dcache.entry_shift; - for (i = 0; i < cpu_data->dcache.ways; - i++, start += cpu_data->dcache.way_incr) { - for (addr = CACHE_OC_ADDRESS_ARRAY + start; - addr < CACHE_OC_ADDRESS_ARRAY + 4096 + start; - addr += entry_offset) { - ctrl_outl(0, addr); - } - } -} - -void flush_cache_4096_all(unsigned long start) -{ - if (cpu_data->dcache.ways == 1) - __flush_cache_4096_all(start); - else - __flush_cache_4096_all_ex(start); -} - /* * Write back the range of D-cache, and purge the I-cache. * @@ -180,9 +206,11 @@ void flush_cache_sigtramp(unsigned long addr) local_irq_save(flags); jump_to_P2(); + for (i = 0; i < cpu_data->icache.ways; i++, index += cpu_data->icache.way_incr) ctrl_outl(0, index); /* Clear out Valid-bit */ + back_to_P1(); wmb(); local_irq_restore(flags); @@ -194,8 +222,8 @@ static inline void flush_cache_4096(unsigned long start, unsigned long flags; /* - * SH7751, SH7751R, and ST40 have no restriction to handle cache. - * (While SH7750 must do that at P2 area.) + * All types of SH-4 require PC to be in P2 to operate on the I-cache. + * Some types of SH-4 require PC to be in P2 to operate on the D-cache. */ if ((cpu_data->flags & CPU_HAS_P2_FLUSH_BUG) || start < CACHE_OC_ADDRESS_ARRAY) { @@ -217,12 +245,13 @@ void flush_dcache_page(struct page *page) { if (test_bit(PG_mapped, &page->flags)) { unsigned long phys = PHYSADDR(page_address(page)); + unsigned long addr = CACHE_OC_ADDRESS_ARRAY; + int i, n; /* Loop all the D-cache */ - flush_cache_4096(CACHE_OC_ADDRESS_ARRAY, phys); - flush_cache_4096(CACHE_OC_ADDRESS_ARRAY | 0x1000, phys); - flush_cache_4096(CACHE_OC_ADDRESS_ARRAY | 0x2000, phys); - flush_cache_4096(CACHE_OC_ADDRESS_ARRAY | 0x3000, phys); + n = cpu_data->dcache.n_aliases; + for (i = 0; i < n; i++, addr += PAGE_SIZE) + flush_cache_4096(addr, phys); } wmb(); @@ -246,10 +275,7 @@ static inline void flush_icache_all(void) void flush_dcache_all(void) { - if (cpu_data->dcache.ways == 1) - __flush_dcache_all(); - else - __flush_dcache_all_ex(); + (*__flush_dcache_segment_fn)(0UL, cpu_data->dcache.way_size); wmb(); } @@ -261,6 +287,16 @@ void flush_cache_all(void) void flush_cache_mm(struct mm_struct *mm) { + /* + * Note : (RPC) since the caches are physically tagged, the only point + * of flush_cache_mm for SH-4 is to get rid of aliases from the + * D-cache. The assumption elsewhere, e.g. flush_cache_range, is that + * lines can stay resident so long as the virtual address they were + * accessed with (hence cache set) is in accord with the physical + * address (i.e. tag). It's no different here. So I reckon we don't + * need to flush the I-cache, since aliases don't matter for that. We + * should try that. + */ flush_cache_all(); } @@ -273,24 +309,36 @@ void flush_cache_mm(struct mm_struct *mm) void flush_cache_page(struct vm_area_struct *vma, unsigned long address, unsigned long pfn) { unsigned long phys = pfn << PAGE_SHIFT; + unsigned int alias_mask; + + alias_mask = cpu_data->dcache.alias_mask; /* We only need to flush D-cache when we have alias */ - if ((address^phys) & CACHE_ALIAS) { + if ((address^phys) & alias_mask) { /* Loop 4K of the D-cache */ flush_cache_4096( - CACHE_OC_ADDRESS_ARRAY | (address & CACHE_ALIAS), + CACHE_OC_ADDRESS_ARRAY | (address & alias_mask), phys); /* Loop another 4K of the D-cache */ flush_cache_4096( - CACHE_OC_ADDRESS_ARRAY | (phys & CACHE_ALIAS), + CACHE_OC_ADDRESS_ARRAY | (phys & alias_mask), phys); } - if (vma->vm_flags & VM_EXEC) - /* Loop 4K (half) of the I-cache */ + alias_mask = cpu_data->icache.alias_mask; + if (vma->vm_flags & VM_EXEC) { + /* + * Evict entries from the portion of the cache from which code + * may have been executed at this address (virtual). There's + * no need to evict from the portion corresponding to the + * physical address as for the D-cache, because we know the + * kernel has never executed the code through its identity + * translation. + */ flush_cache_4096( - CACHE_IC_ADDRESS_ARRAY | (address & 0x1000), + CACHE_IC_ADDRESS_ARRAY | (address & alias_mask), phys); + } } /* @@ -305,14 +353,28 @@ void flush_cache_page(struct vm_area_struct *vma, unsigned long address, unsigne void flush_cache_range(struct vm_area_struct *vma, unsigned long start, unsigned long end) { - unsigned long p = start & PAGE_MASK; + unsigned long d = 0, p = start & PAGE_MASK; + unsigned long alias_mask = cpu_data->dcache.alias_mask; + unsigned long n_aliases = cpu_data->dcache.n_aliases; + unsigned long select_bit; + unsigned long all_aliases_mask; + unsigned long addr_offset; + unsigned long phys; pgd_t *dir; pmd_t *pmd; pud_t *pud; pte_t *pte; pte_t entry; - unsigned long phys; - unsigned long d = 0; + int i; + + /* + * If cache is only 4k-per-way, there are never any 'aliases'. Since + * the cache is physically tagged, the data can just be left in there. + */ + if (n_aliases == 0) + return; + + all_aliases_mask = (1 << n_aliases) - 1; /* * Don't bother with the lookup and alias check if we have a @@ -335,39 +397,52 @@ void flush_cache_range(struct vm_area_struct *vma, unsigned long start, do { if (pmd_none(*pmd) || pmd_bad(*pmd)) { - p &= ~((1 << PMD_SHIFT) -1); + p &= ~((1 << PMD_SHIFT) - 1); p += (1 << PMD_SHIFT); pmd++; + continue; } + pte = pte_offset_kernel(pmd, p); + do { entry = *pte; + if ((pte_val(entry) & _PAGE_PRESENT)) { - phys = pte_val(entry)&PTE_PHYS_MASK; - if ((p^phys) & CACHE_ALIAS) { - d |= 1 << ((p & CACHE_ALIAS)>>12); - d |= 1 << ((phys & CACHE_ALIAS)>>12); - if (d == 0x0f) + phys = pte_val(entry) & PTE_PHYS_MASK; + + if ((p ^ phys) & alias_mask) { + d |= 1 << ((p & alias_mask) >> PAGE_SHIFT); + d |= 1 << ((phys & alias_mask) >> PAGE_SHIFT); + + if (d == all_aliases_mask) goto loop_exit; } } + pte++; p += PAGE_SIZE; } while (p < end && ((unsigned long)pte & ~PAGE_MASK)); pmd++; } while (p < end); - loop_exit: - if (d & 1) - flush_cache_4096_all(0); - if (d & 2) - flush_cache_4096_all(0x1000); - if (d & 4) - flush_cache_4096_all(0x2000); - if (d & 8) - flush_cache_4096_all(0x3000); - if (vma->vm_flags & VM_EXEC) + +loop_exit: + for (i = 0, select_bit = 0x1, addr_offset = 0x0; i < n_aliases; + i++, select_bit <<= 1, addr_offset += PAGE_SIZE) + if (d & select_bit) { + (*__flush_dcache_segment_fn)(addr_offset, PAGE_SIZE); + wmb(); + } + + if (vma->vm_flags & VM_EXEC) { + /* + * TODO: Is this required??? Need to look at how I-cache + * coherency is assured when new programs are loaded to see if + * this matters. + */ flush_icache_all(); + } } /* @@ -384,3 +459,271 @@ void flush_icache_user_range(struct vm_area_struct *vma, mb(); } +/** + * __flush_cache_4096 + * + * @addr: address in memory mapped cache array + * @phys: P1 address to flush (has to match tags if addr has 'A' bit + * set i.e. associative write) + * @exec_offset: set to 0x20000000 if flush has to be executed from P2 + * region else 0x0 + * + * The offset into the cache array implied by 'addr' selects the + * 'colour' of the virtual address range that will be flushed. The + * operation (purge/write-back) is selected by the lower 2 bits of + * 'phys'. + */ +static void __flush_cache_4096(unsigned long addr, unsigned long phys, + unsigned long exec_offset) +{ + int way_count; + unsigned long base_addr = addr; + struct cache_info *dcache; + unsigned long way_incr; + unsigned long a, ea, p; + unsigned long temp_pc; + + dcache = &cpu_data->dcache; + /* Write this way for better assembly. */ + way_count = dcache->ways; + way_incr = dcache->way_incr; + + /* + * Apply exec_offset (i.e. branch to P2 if required.). + * + * FIXME: + * + * If I write "=r" for the (temp_pc), it puts this in r6 hence + * trashing exec_offset before it's been added on - why? Hence + * "=&r" as a 'workaround' + */ + asm volatile("mov.l 1f, %0\n\t" + "add %1, %0\n\t" + "jmp @%0\n\t" + "nop\n\t" + ".balign 4\n\t" + "1: .long 2f\n\t" + "2:\n" : "=&r" (temp_pc) : "r" (exec_offset)); + + /* + * We know there will be >=1 iteration, so write as do-while to avoid + * pointless nead-of-loop check for 0 iterations. + */ + do { + ea = base_addr + PAGE_SIZE; + a = base_addr; + p = phys; + + do { + *(volatile unsigned long *)a = p; + /* + * Next line: intentionally not p+32, saves an add, p + * will do since only the cache tag bits need to + * match. + */ + *(volatile unsigned long *)(a+32) = p; + a += 64; + p += 64; + } while (a < ea); + + base_addr += way_incr; + } while (--way_count != 0); +} + +/* + * Break the 1, 2 and 4 way variants of this out into separate functions to + * avoid nearly all the overhead of having the conditional stuff in the function + * bodies (+ the 1 and 2 way cases avoid saving any registers too). + */ +static void __flush_dcache_segment_1way(unsigned long start, + unsigned long extent_per_way) +{ + unsigned long orig_sr, sr_with_bl; + unsigned long base_addr; + unsigned long way_incr, linesz, way_size; + struct cache_info *dcache; + register unsigned long a0, a0e; + + asm volatile("stc sr, %0" : "=r" (orig_sr)); + sr_with_bl = orig_sr | (1<<28); + base_addr = ((unsigned long)&empty_zero_page[0]); + + /* + * The previous code aligned base_addr to 16k, i.e. the way_size of all + * existing SH-4 D-caches. Whilst I don't see a need to have this + * aligned to any better than the cache line size (which it will be + * anyway by construction), let's align it to at least the way_size of + * any existing or conceivable SH-4 D-cache. -- RPC + */ + base_addr = ((base_addr >> 16) << 16); + base_addr |= start; + + dcache = &cpu_data->dcache; + linesz = dcache->linesz; + way_incr = dcache->way_incr; + way_size = dcache->way_size; + + a0 = base_addr; + a0e = base_addr + extent_per_way; + do { + asm volatile("ldc %0, sr" : : "r" (sr_with_bl)); + asm volatile("movca.l r0, @%0\n\t" + "ocbi @%0" : : "r" (a0)); + a0 += linesz; + asm volatile("movca.l r0, @%0\n\t" + "ocbi @%0" : : "r" (a0)); + a0 += linesz; + asm volatile("movca.l r0, @%0\n\t" + "ocbi @%0" : : "r" (a0)); + a0 += linesz; + asm volatile("movca.l r0, @%0\n\t" + "ocbi @%0" : : "r" (a0)); + asm volatile("ldc %0, sr" : : "r" (orig_sr)); + a0 += linesz; + } while (a0 < a0e); +} + +static void __flush_dcache_segment_2way(unsigned long start, + unsigned long extent_per_way) +{ + unsigned long orig_sr, sr_with_bl; + unsigned long base_addr; + unsigned long way_incr, linesz, way_size; + struct cache_info *dcache; + register unsigned long a0, a1, a0e; + + asm volatile("stc sr, %0" : "=r" (orig_sr)); + sr_with_bl = orig_sr | (1<<28); + base_addr = ((unsigned long)&empty_zero_page[0]); + + /* See comment under 1-way above */ + base_addr = ((base_addr >> 16) << 16); + base_addr |= start; + + dcache = &cpu_data->dcache; + linesz = dcache->linesz; + way_incr = dcache->way_incr; + way_size = dcache->way_size; + + a0 = base_addr; + a1 = a0 + way_incr; + a0e = base_addr + extent_per_way; + do { + asm volatile("ldc %0, sr" : : "r" (sr_with_bl)); + asm volatile("movca.l r0, @%0\n\t" + "movca.l r0, @%1\n\t" + "ocbi @%0\n\t" + "ocbi @%1" : : + "r" (a0), "r" (a1)); + a0 += linesz; + a1 += linesz; + asm volatile("movca.l r0, @%0\n\t" + "movca.l r0, @%1\n\t" + "ocbi @%0\n\t" + "ocbi @%1" : : + "r" (a0), "r" (a1)); + a0 += linesz; + a1 += linesz; + asm volatile("movca.l r0, @%0\n\t" + "movca.l r0, @%1\n\t" + "ocbi @%0\n\t" + "ocbi @%1" : : + "r" (a0), "r" (a1)); + a0 += linesz; + a1 += linesz; + asm volatile("movca.l r0, @%0\n\t" + "movca.l r0, @%1\n\t" + "ocbi @%0\n\t" + "ocbi @%1" : : + "r" (a0), "r" (a1)); + asm volatile("ldc %0, sr" : : "r" (orig_sr)); + a0 += linesz; + a1 += linesz; + } while (a0 < a0e); +} + +static void __flush_dcache_segment_4way(unsigned long start, + unsigned long extent_per_way) +{ + unsigned long orig_sr, sr_with_bl; + unsigned long base_addr; + unsigned long way_incr, linesz, way_size; + struct cache_info *dcache; + register unsigned long a0, a1, a2, a3, a0e; + + asm volatile("stc sr, %0" : "=r" (orig_sr)); + sr_with_bl = orig_sr | (1<<28); + base_addr = ((unsigned long)&empty_zero_page[0]); + + /* See comment under 1-way above */ + base_addr = ((base_addr >> 16) << 16); + base_addr |= start; + + dcache = &cpu_data->dcache; + linesz = dcache->linesz; + way_incr = dcache->way_incr; + way_size = dcache->way_size; + + a0 = base_addr; + a1 = a0 + way_incr; + a2 = a1 + way_incr; + a3 = a2 + way_incr; + a0e = base_addr + extent_per_way; + do { + asm volatile("ldc %0, sr" : : "r" (sr_with_bl)); + asm volatile("movca.l r0, @%0\n\t" + "movca.l r0, @%1\n\t" + "movca.l r0, @%2\n\t" + "movca.l r0, @%3\n\t" + "ocbi @%0\n\t" + "ocbi @%1\n\t" + "ocbi @%2\n\t" + "ocbi @%3\n\t" : : + "r" (a0), "r" (a1), "r" (a2), "r" (a3)); + a0 += linesz; + a1 += linesz; + a2 += linesz; + a3 += linesz; + asm volatile("movca.l r0, @%0\n\t" + "movca.l r0, @%1\n\t" + "movca.l r0, @%2\n\t" + "movca.l r0, @%3\n\t" + "ocbi @%0\n\t" + "ocbi @%1\n\t" + "ocbi @%2\n\t" + "ocbi @%3\n\t" : : + "r" (a0), "r" (a1), "r" (a2), "r" (a3)); + a0 += linesz; + a1 += linesz; + a2 += linesz; + a3 += linesz; + asm volatile("movca.l r0, @%0\n\t" + "movca.l r0, @%1\n\t" + "movca.l r0, @%2\n\t" + "movca.l r0, @%3\n\t" + "ocbi @%0\n\t" + "ocbi @%1\n\t" + "ocbi @%2\n\t" + "ocbi @%3\n\t" : : + "r" (a0), "r" (a1), "r" (a2), "r" (a3)); + a0 += linesz; + a1 += linesz; + a2 += linesz; + a3 += linesz; + asm volatile("movca.l r0, @%0\n\t" + "movca.l r0, @%1\n\t" + "movca.l r0, @%2\n\t" + "movca.l r0, @%3\n\t" + "ocbi @%0\n\t" + "ocbi @%1\n\t" + "ocbi @%2\n\t" + "ocbi @%3\n\t" : : + "r" (a0), "r" (a1), "r" (a2), "r" (a3)); + asm volatile("ldc %0, sr" : : "r" (orig_sr)); + a0 += linesz; + a1 += linesz; + a2 += linesz; + a3 += linesz; + } while (a0 < a0e); +} + diff --git a/arch/sh/mm/clear_page.S b/arch/sh/mm/clear_page.S index 08acead7b2a1..7b96425ae270 100644 --- a/arch/sh/mm/clear_page.S +++ b/arch/sh/mm/clear_page.S @@ -193,102 +193,5 @@ ENTRY(__clear_user_page) nop .L4096: .word 4096 -ENTRY(__flush_cache_4096) - mov.l 1f,r3 - add r6,r3 - mov r4,r0 - mov #64,r2 - shll r2 - mov #64,r6 - jmp @r3 - mov #96,r7 - .align 2 -1: .long 2f -2: - .rept 32 - mov.l r5,@r0 - mov.l r5,@(32,r0) - mov.l r5,@(r0,r6) - mov.l r5,@(r0,r7) - add r2,r5 - add r2,r0 - .endr - nop - nop - nop - nop - nop - nop - nop - rts - nop - -ENTRY(__flush_dcache_all) - mov.l 2f,r0 - mov.l 3f,r4 - and r0,r4 ! r4 = (unsigned long)&empty_zero_page[0] & ~0xffffc000 - stc sr,r1 ! save SR - mov.l 4f,r2 - or r1,r2 - mov #32,r3 - shll2 r3 -1: - ldc r2,sr ! set BL bit - movca.l r0,@r4 - ocbi @r4 - add #32,r4 - movca.l r0,@r4 - ocbi @r4 - add #32,r4 - movca.l r0,@r4 - ocbi @r4 - add #32,r4 - movca.l r0,@r4 - ocbi @r4 - ldc r1,sr ! restore SR - dt r3 - bf/s 1b - add #32,r4 - - rts - nop - .align 2 -2: .long 0xffffc000 -3: .long empty_zero_page -4: .long 0x10000000 ! BL bit - -/* __flush_cache_4096_all(unsigned long addr) */ -ENTRY(__flush_cache_4096_all) - mov.l 2f,r0 - mov.l 3f,r2 - and r0,r2 - or r2,r4 ! r4 = addr | (unsigned long)&empty_zero_page[0] & ~0x3fff - stc sr,r1 ! save SR - mov.l 4f,r2 - or r1,r2 - mov #32,r3 -1: - ldc r2,sr ! set BL bit - movca.l r0,@r4 - ocbi @r4 - add #32,r4 - movca.l r0,@r4 - ocbi @r4 - add #32,r4 - movca.l r0,@r4 - ocbi @r4 - add #32,r4 - movca.l r0,@r4 - ocbi @r4 - ldc r1,sr ! restore SR - dt r3 - bf/s 1b - add #32,r4 - - rts - nop - .align 2 -2: .long 0xffffc000 -3: .long empty_zero_page -4: .long 0x10000000 ! BL bit #endif + diff --git a/include/asm-sh/cache.h b/include/asm-sh/cache.h index 656fdfe9e8b4..33f13367054b 100644 --- a/include/asm-sh/cache.h +++ b/include/asm-sh/cache.h @@ -23,15 +23,29 @@ #define L1_CACHE_ALIGN(x) (((x)+(L1_CACHE_BYTES-1))&~(L1_CACHE_BYTES-1)) struct cache_info { - unsigned int ways; - unsigned int sets; - unsigned int linesz; + unsigned int ways; /* Number of cache ways */ + unsigned int sets; /* Number of cache sets */ + unsigned int linesz; /* Cache line size (bytes) */ - unsigned int way_incr; + unsigned int way_size; /* sets * line size */ + /* + * way_incr is the address offset for accessing the next way + * in memory mapped cache array ops. + */ + unsigned int way_incr; unsigned int entry_shift; unsigned int entry_mask; + /* + * Compute a mask which selects the address bits which overlap between + * 1. those used to select the cache set during indexing + * 2. those in the physical page number. + */ + unsigned int alias_mask; + + unsigned int n_aliases; /* Number of aliases */ + unsigned long flags; }; -- cgit v1.2.3 From e86d6b66f5b38680746b2cb71186d90af17f150f Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Wed, 27 Sep 2006 14:20:54 +0900 Subject: sh: prefetch()/prefetchw() support. SH-2/3/4 are able to prefetch, add support for it.. Signed-off-by: Paul Mundt --- include/asm-sh/processor.h | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'include') diff --git a/include/asm-sh/processor.h b/include/asm-sh/processor.h index eeb0f48bb99e..e99aff706cf7 100644 --- a/include/asm-sh/processor.h +++ b/include/asm-sh/processor.h @@ -266,5 +266,18 @@ extern unsigned long get_wchan(struct task_struct *p); #define cpu_sleep() __asm__ __volatile__ ("sleep" : : : "memory") #define cpu_relax() barrier() +#if defined(CONFIG_CPU_SH2A) || defined(CONFIG_CPU_SH3) || \ + defined(CONFIG_CPU_SH4) +#define PREFETCH_STRIDE L1_CACHE_BYTES +#define ARCH_HAS_PREFETCH +#define ARCH_HAS_PREFETCHW +static inline void prefetch(void *x) +{ + __asm__ __volatile__ ("pref @%0\n\t" : : "r" (x) : "memory"); +} + +#define prefetchw(x) prefetch(x) +#endif + #endif /* __KERNEL__ */ #endif /* __ASM_SH_PROCESSOR_H */ -- cgit v1.2.3 From a80fd21e52cc09ff1e4d36de5781173a5b87b2dc Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Wed, 27 Sep 2006 14:26:53 +0900 Subject: sh: earlyprintk= support and cleanups. Allow multiple early printk consoles via earlyprintk=. With this change earlyprintk is no longer enabled by default, it must be specified on the kernel command line. Optionally with ,keep to prevent unreg by tty_io. Signed-off-by: Paul Mundt --- arch/sh/kernel/early_printk.c | 106 +++++++++++++++++++++++++++++++----------- arch/sh/kernel/setup.c | 22 +++++++-- include/asm-sh/setup.h | 2 + 3 files changed, 100 insertions(+), 30 deletions(-) (limited to 'include') diff --git a/arch/sh/kernel/early_printk.c b/arch/sh/kernel/early_printk.c index 1378db375e17..a00022722e9e 100644 --- a/arch/sh/kernel/early_printk.c +++ b/arch/sh/kernel/early_printk.c @@ -3,7 +3,7 @@ * * Copyright (C) 1999, 2000 Niibe Yutaka * Copyright (C) 2002 M. R. Brown - * Copyright (C) 2004 Paul Mundt + * Copyright (C) 2004 - 2006 Paul Mundt * * 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 @@ -49,7 +49,7 @@ static int __init sh_console_setup(struct console *co, char *options) return 0; } -static struct console early_console = { +static struct console bios_console = { .name = "bios", .write = sh_console_write, .setup = sh_console_setup, @@ -59,34 +59,43 @@ static struct console early_console = { #endif #ifdef CONFIG_EARLY_SCIF_CONSOLE +#include +#include "../../../drivers/serial/sh-sci.h" + +#ifdef CONFIG_CPU_SH4 #define SCIF_REG 0xffe80000 +#elif defined(CONFIG_CPU_SUBTYPE_SH72060) +#define SCIF_REG 0xfffe9800 +#else +#error "Undefined SCIF for this subtype" +#endif + +static struct uart_port scif_port = { + .mapbase = SCIF_REG, + .membase = (char __iomem *)SCIF_REG, +}; static void scif_sercon_putc(int c) { - while (!(ctrl_inw(SCIF_REG + 0x10) & 0x20)) ; + while (((sci_in(&scif_port, SCFDR) & 0x1f00 >> 8) == 16)) + ; - ctrl_outb(c, SCIF_REG + 12); - ctrl_outw((ctrl_inw(SCIF_REG + 0x10) & 0x9f), SCIF_REG + 0x10); + sci_out(&scif_port, SCxTDR, c); + sci_in(&scif_port, SCxSR); + sci_out(&scif_port, SCxSR, 0xf3 & ~(0x20 | 0x40)); + + while ((sci_in(&scif_port, SCxSR) & 0x40) == 0); + ; if (c == '\n') scif_sercon_putc('\r'); } -static void scif_sercon_flush(void) -{ - ctrl_outw((ctrl_inw(SCIF_REG + 0x10) & 0xbf), SCIF_REG + 0x10); - - while (!(ctrl_inw(SCIF_REG + 0x10) & 0x40)) ; - - ctrl_outw((ctrl_inw(SCIF_REG + 0x10) & 0xbf), SCIF_REG + 0x10); -} - -static void scif_sercon_write(struct console *con, const char *s, unsigned count) +static void scif_sercon_write(struct console *con, const char *s, + unsigned count) { while (count-- > 0) scif_sercon_putc(*s++); - - scif_sercon_flush(); } static int __init scif_sercon_setup(struct console *con, char *options) @@ -96,7 +105,7 @@ static int __init scif_sercon_setup(struct console *con, char *options) return 0; } -static struct console early_console = { +static struct console scif_console = { .name = "sercon", .write = scif_sercon_write, .setup = scif_sercon_setup, @@ -104,7 +113,7 @@ static struct console early_console = { .index = -1, }; -void scif_sercon_init(int baud) +static void scif_sercon_init(int baud) { ctrl_outw(0, SCIF_REG + 8); ctrl_outw(0, SCIF_REG); @@ -122,16 +131,61 @@ void scif_sercon_init(int baud) } #endif -void __init enable_early_printk(void) +/* + * Setup a default console, if more than one is compiled in, rely on the + * earlyprintk= parsing to give priority. + */ +static struct console *early_console = +#ifdef CONFIG_SH_STANDARD_BIOS + &bios_console +#elif defined(CONFIG_EARLY_SCIF_CONSOLE) + &scif_console +#else + NULL +#endif + ; + +static int __initdata keep_early; + +int __init setup_early_printk(char *opt) { -#ifdef CONFIG_EARLY_SCIF_CONSOLE - scif_sercon_init(115200); + char *space; + char buf[256]; + + strlcpy(buf, opt, sizeof(buf)); + space = strchr(buf, ' '); + if (space) + *space = 0; + + if (strstr(buf, "keep")) + keep_early = 1; + +#ifdef CONFIG_SH_STANDARD_BIOS + if (!strncmp(buf, "bios", 4)) + early_console = &bios_console; +#endif +#if defined(CONFIG_EARLY_SCIF_CONSOLE) + if (!strncmp(buf, "serial", 6)) { + early_console = &scif_console; + +#ifdef CONFIG_CPU_SH4 + scif_sercon_init(115200); +#endif + } #endif - register_console(&early_console); + + if (likely(early_console)) + register_console(early_console); + + return 1; } +__setup("earlyprintk=", setup_early_printk); -void disable_early_printk(void) +void __init disable_early_printk(void) { - unregister_console(&early_console); + if (!keep_early) { + printk("disabling early console\n"); + unregister_console(early_console); + } else + printk("keeping early console\n"); } - diff --git a/arch/sh/kernel/setup.c b/arch/sh/kernel/setup.c index e75189cb1db7..cff8d36f91b0 100644 --- a/arch/sh/kernel/setup.c +++ b/arch/sh/kernel/setup.c @@ -145,6 +145,24 @@ static inline void parse_cmdline (char ** cmdline_p, char mv_name[MV_NAME_SIZE], memory_end = memory_start + mem_size; } } + +#ifdef CONFIG_EARLY_PRINTK + if (c == ' ' && !memcmp(from, "earlyprintk=", 12)) { + char *ep_end; + + if (to != command_line) + to--; + + from += 12; + ep_end = strchr(from, ' '); + + setup_early_printk(from); + printk("early console enabled\n"); + + from = ep_end; + } +#endif + if (c == ' ' && !memcmp(from, "sh_mv=", 6)) { char* mv_end; char* mv_comma; @@ -245,11 +263,7 @@ void __init setup_arch(char **cmdline_p) unsigned long bootmap_size; unsigned long start_pfn, max_pfn, max_low_pfn; -#ifdef CONFIG_EARLY_PRINTK - extern void enable_early_printk(void); - enable_early_printk(); -#endif #ifdef CONFIG_CMDLINE_BOOL strcpy(COMMAND_LINE, CONFIG_CMDLINE); #endif diff --git a/include/asm-sh/setup.h b/include/asm-sh/setup.h index d19de7c8df4e..34ca8a7f06ba 100644 --- a/include/asm-sh/setup.h +++ b/include/asm-sh/setup.h @@ -4,5 +4,7 @@ #define COMMAND_LINE_SIZE 256 +int setup_early_printk(char *); + #endif /* _SH_SETUP_H */ #endif /* __KERNEL__ */ -- cgit v1.2.3 From 5b19c9081fbd0882c936ec087bf9055a20251dec Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Wed, 27 Sep 2006 14:31:40 +0900 Subject: sh: Support for SH7770/SH7780 CPU subtypes. Merge support for SH7770 and SH7780 SH-4A subtypes. Signed-off-by: Paul Mundt --- arch/sh/kernel/cpu/sh4/ex.S | 164 +++++++++++++++++++++++++++++++++++++++++ arch/sh/kernel/cpu/sh4/probe.c | 15 ++++ arch/sh/kernel/cpu/sh4/sq.c | 2 + arch/sh/mm/tlb-sh4.c | 4 + include/asm-sh/bugs.h | 4 + include/asm-sh/cpu-sh4/cache.h | 2 + 6 files changed, 191 insertions(+) (limited to 'include') diff --git a/arch/sh/kernel/cpu/sh4/ex.S b/arch/sh/kernel/cpu/sh4/ex.S index 26a27df06505..af5ecbddea55 100644 --- a/arch/sh/kernel/cpu/sh4/ex.S +++ b/arch/sh/kernel/cpu/sh4/ex.S @@ -72,6 +72,7 @@ ENTRY(interrupt_table) .long do_IRQ ! 1110 .long exception_error ! Internal hardware +#ifndef CONFIG_CPU_SUBTYPE_SH7780 .long do_IRQ ! TMU0 tuni0 /* 400 */ .long do_IRQ ! TMU1 tuni1 .long do_IRQ ! TMU2 tuni2 @@ -379,5 +380,168 @@ ENTRY(interrupt_table) .long exception_error ! 141 0x13a0 .long exception_error ! 142 0x13c0 .long exception_error ! 143 0x13e0 +#elif defined(CONFIG_CPU_SUBTYPE_SH7770) + .long do_IRQ ! 50 0x840 + .long do_IRQ ! 51 0x860 + .long do_IRQ ! 52 0x880 + .long do_IRQ ! 53 0x8a0 + .long do_IRQ ! 54 0x8c0 + .long do_IRQ ! 55 0x8e0 + .long do_IRQ ! 56 0x900 + .long do_IRQ ! 57 0x920 + .long do_IRQ ! 58 0x940 + .long do_IRQ ! 59 0x960 + .long do_IRQ ! 60 0x980 + .long do_IRQ ! 61 0x9a0 + .long do_IRQ ! 62 0x9c0 + .long do_IRQ ! 63 0x9e0 + .long do_IRQ ! 64 0xa00 + .long do_IRQ ! 65 0xa20 + .long do_IRQ ! 66 0xa4d + .long do_IRQ ! 67 0xa60 + .long do_IRQ ! 68 0xa80 + .long do_IRQ ! 69 0xaa0 + .long do_IRQ ! 70 0xac0 + .long do_IRQ ! 71 0xae0 + .long do_IRQ ! 72 0xb00 + .long do_IRQ ! 73 0xb20 + .long do_IRQ ! 74 0xb40 + .long do_IRQ ! 75 0xb60 + .long do_IRQ ! 76 0xb80 + .long do_IRQ ! 77 0xba0 + .long do_IRQ ! 78 0xbc0 + .long do_IRQ ! 79 0xbe0 + .long do_IRQ ! 80 0xc00 + .long do_IRQ ! 81 0xc20 + .long do_IRQ ! 82 0xc40 + .long do_IRQ ! 83 0xc60 + .long do_IRQ ! 84 0xc80 + .long do_IRQ ! 85 0xca0 + .long do_IRQ ! 86 0xcc0 + .long do_IRQ ! 87 0xce0 + .long do_IRQ ! 88 0xd00 + .long do_IRQ ! 89 0xd20 + .long do_IRQ ! 90 0xd40 + .long do_IRQ ! 91 0xd60 + .long do_IRQ ! 92 0xd80 + .long do_IRQ ! 93 0xda0 + .long do_IRQ ! 94 0xdc0 + .long do_IRQ ! 95 0xde0 + .long do_IRQ ! 96 0xe00 + .long do_IRQ ! 97 0xe20 + .long do_IRQ ! 98 0xe40 + .long do_IRQ ! 99 0xe60 + .long do_IRQ ! 100 0xe80 + .long do_IRQ ! 101 0xea0 + .long do_IRQ ! 102 0xec0 + .long do_IRQ ! 103 0xee0 + .long do_IRQ ! 104 0xf00 + .long do_IRQ ! 105 0xf20 + .long do_IRQ ! 106 0xf40 + .long do_IRQ ! 107 0xf60 + .long do_IRQ ! 108 0xf80 +#endif +#else + .long exception_error /* 400 */ + .long exception_error + .long exception_error + .long exception_error + .long do_IRQ ! RTC ati + .long do_IRQ ! pri + .long do_IRQ ! cui + .long exception_error + .long exception_error /* 500 */ + .long exception_error + .long exception_error + .long do_IRQ ! WDT iti /* 560 */ + .long do_IRQ ! TMU-ch0 + .long do_IRQ ! TMU-ch1 + .long do_IRQ ! TMU-ch2 + .long do_IRQ ! ticpi2 /* 5E0 */ + .long do_IRQ ! 32 Hitachi UDI /* 600 */ + .long exception_error + .long do_IRQ ! 34 DMAC dmte0 + .long do_IRQ ! 35 dmte1 + .long do_IRQ ! 36 dmte2 + .long do_IRQ ! 37 dmte3 + .long do_IRQ ! 38 dmae + .long exception_error ! 39 /* 6E0 */ + .long do_IRQ ! 40 SCIF-ch0 eri /* 700 */ + .long do_IRQ ! 41 rxi + .long do_IRQ ! 42 bri + .long do_IRQ ! 43 txi + .long do_IRQ ! 44 DMAC dmte4 /* 780 */ + .long do_IRQ ! 45 dmte5 + .long do_IRQ ! 46 dmte6 + .long do_IRQ ! 47 dmte7 /* 7E0 */ +#if defined(CONFIG_SH_FPU) + .long do_fpu_state_restore ! 48 /* 800 */ + .long do_fpu_state_restore ! 49 /* 820 */ +#else + .long exception_error + .long exception_error +#endif + .long exception_error /* 840 */ + .long exception_error + .long exception_error + .long exception_error + .long exception_error + .long exception_error + .long do_IRQ ! 56 CMT /* 900 */ + .long exception_error + .long exception_error + .long exception_error + .long do_IRQ ! 60 HAC + .long exception_error + .long exception_error + .long exception_error + .long do_IRQ ! PCI serr /* A00 */ + .long do_IRQ ! INTA + .long do_IRQ ! INTB + .long do_IRQ ! INTC + .long do_IRQ ! INTD + .long do_IRQ ! err + .long do_IRQ ! pwd3 + .long do_IRQ ! pwd2 + .long do_IRQ ! pwd1 /* B00 */ + .long do_IRQ ! pwd0 + .long exception_error + .long exception_error + .long do_IRQ ! SCIF-ch1 eri /* B80 */ + .long do_IRQ ! rxi + .long do_IRQ ! bri + .long do_IRQ ! txi + .long do_IRQ ! SIOF /* C00 */ + .long exception_error + .long exception_error + .long exception_error + .long do_IRQ ! HSPI /* C80 */ + .long exception_error + .long exception_error + .long exception_error + .long do_IRQ ! MMCIF fatat /* D00 */ + .long do_IRQ ! tran + .long do_IRQ ! err + .long do_IRQ ! frdy + .long do_IRQ ! DMAC dmint8 /* D80 */ + .long do_IRQ ! dmint9 + .long do_IRQ ! dmint10 + .long do_IRQ ! dmint11 + .long do_IRQ ! TMU-ch3 /* E00 */ + .long do_IRQ ! TMU-ch4 + .long do_IRQ ! TMU-ch5 + .long exception_error + .long do_IRQ ! SSI + .long exception_error + .long exception_error + .long exception_error + .long do_IRQ ! FLCTL flste /* F00 */ + .long do_IRQ ! fltend + .long do_IRQ ! fltrq0 + .long do_IRQ ! fltrq1 + .long do_IRQ ! GPIO gpioi0 /* F80 */ + .long do_IRQ ! gpioi1 + .long do_IRQ ! gpioi2 + .long do_IRQ ! gpioi3 #endif diff --git a/arch/sh/kernel/cpu/sh4/probe.c b/arch/sh/kernel/cpu/sh4/probe.c index 89986e70d041..85ff48c1533a 100644 --- a/arch/sh/kernel/cpu/sh4/probe.c +++ b/arch/sh/kernel/cpu/sh4/probe.c @@ -78,6 +78,21 @@ int __init detect_cpu_and_cache_system(void) cpu_data->dcache.ways = 4; cpu_data->flags &= ~CPU_HAS_FPU; break; + case 0x2001: + case 0x2004: + cpu_data->type = CPU_SH7770; + cpu_data->icache.ways = 4; + cpu_data->dcache.ways = 4; + break; + case 0x2006: + case 0x200A: + if (prr == 0x61) + cpu_data->type = CPU_SH7781; + else + cpu_data->type = CPU_SH7780; + cpu_data->icache.ways = 4; + cpu_data->dcache.ways = 4; + break; case 0x8000: cpu_data->type = CPU_ST40RA; break; diff --git a/arch/sh/kernel/cpu/sh4/sq.c b/arch/sh/kernel/cpu/sh4/sq.c index 00f6a3c8c43b..32c93b781b51 100644 --- a/arch/sh/kernel/cpu/sh4/sq.c +++ b/arch/sh/kernel/cpu/sh4/sq.c @@ -166,7 +166,9 @@ static struct sq_mapping *__sq_remap(struct sq_mapping *map) ctrl_outl((pteh & MMU_VPN_MASK) | get_asid(), MMU_PTEH); ptel = map->addr & PAGE_MASK; +#ifndef CONFIG_CPU_SUBTYPE_SH7780 ctrl_outl(((ptel >> 28) & 0xe) | (ptel & 0x1), MMU_PTEA); +#endif pgprot = pgprot_noncached(PAGE_KERNEL); diff --git a/arch/sh/mm/tlb-sh4.c b/arch/sh/mm/tlb-sh4.c index 115b1b6be40b..96e5fb0ac4fa 100644 --- a/arch/sh/mm/tlb-sh4.c +++ b/arch/sh/mm/tlb-sh4.c @@ -36,7 +36,9 @@ void update_mmu_cache(struct vm_area_struct * vma, unsigned long vpn; struct page *page; unsigned long pfn; +#ifndef CONFIG_CPU_SUBTYPE_SH7780 unsigned long ptea; +#endif /* Ptrace may call this routine. */ if (vma && current->active_mm != vma->vm_mm) @@ -59,10 +61,12 @@ void update_mmu_cache(struct vm_area_struct * vma, ctrl_outl(vpn, MMU_PTEH); pteval = pte_val(pte); +#ifndef CONFIG_CPU_SUBTYPE_SH7780 /* Set PTEA register */ /* TODO: make this look less hacky */ ptea = ((pteval >> 28) & 0xe) | (pteval & 0x1); ctrl_outl(ptea, MMU_PTEA); +#endif /* Set PTEL register */ pteval &= _PAGE_FLAGS_HARDWARE_MASK; /* drop software flags */ diff --git a/include/asm-sh/bugs.h b/include/asm-sh/bugs.h index a6de3d06a3d9..b4000c8bf31b 100644 --- a/include/asm-sh/bugs.h +++ b/include/asm-sh/bugs.h @@ -32,6 +32,10 @@ static void __init check_bugs(void) case CPU_SH7750 ... CPU_SH4_501: *p++ = '4'; break; + case CPU_SH7770 ... CPU_SH7781: + *p++ = '4'; + *p++ = 'a'; + break; default: *p++ = '?'; *p++ = '!'; diff --git a/include/asm-sh/cpu-sh4/cache.h b/include/asm-sh/cpu-sh4/cache.h index 1fe20359312c..6e9c7e6ee8e4 100644 --- a/include/asm-sh/cpu-sh4/cache.h +++ b/include/asm-sh/cpu-sh4/cache.h @@ -22,7 +22,9 @@ #define CCR_CACHE_ICE 0x0100 /* Instruction Cache Enable */ #define CCR_CACHE_ICI 0x0800 /* IC Invalidate */ #define CCR_CACHE_IIX 0x8000 /* IC Index Enable */ +#ifndef CONFIG_CPU_SUBTYPE_SH7780 #define CCR_CACHE_EMODE 0x80000000 /* EMODE Enable */ +#endif /* Default CCR setup: 8k+16k-byte cache,P1-wb,enable */ #define CCR_CACHE_ENABLE (CCR_CACHE_OCE|CCR_CACHE_ICE) -- cgit v1.2.3 From ef9a1d4c0c383f75710f6adf2abb8cc264877e2c Mon Sep 17 00:00:00 2001 From: Alexey Dobriyan Date: Wed, 27 Sep 2006 14:32:57 +0900 Subject: sh: remove cpu_online() definition from It's defined in and log is horribly flooded by "redefined" messages. Signed-off-by: Alexey Dobriyan Signed-off-by: Paul Mundt --- include/asm-sh/smp.h | 5 ----- 1 file changed, 5 deletions(-) (limited to 'include') diff --git a/include/asm-sh/smp.h b/include/asm-sh/smp.h index f57c4fe9692a..71ecddf70db3 100644 --- a/include/asm-sh/smp.h +++ b/include/asm-sh/smp.h @@ -19,11 +19,6 @@ #include #include -extern cpumask_t cpu_online_map; -extern cpumask_t cpu_possible_map; - -#define cpu_online(cpu) cpu_isset(cpu, cpu_online_map) - #define raw_smp_processor_id() (current_thread_info()->cpu) /* I've no idea what the real meaning of this is */ -- cgit v1.2.3 From 75c92acdd5b19a5e3536ed670e1122d73c635b4a Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Wed, 27 Sep 2006 14:36:44 +0900 Subject: sh: Wire up new syscalls. The syscall table has lagged behind a bit, wire up the new ones.. Signed-off-by: Paul Mundt --- arch/sh/kernel/syscalls.S | 28 ++++++++++++++++++++++++++++ include/asm-sh/unistd.h | 26 ++++++++++++++++++++++++-- 2 files changed, 52 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/arch/sh/kernel/syscalls.S b/arch/sh/kernel/syscalls.S index f500304cbd69..ada61b0d9a73 100644 --- a/arch/sh/kernel/syscalls.S +++ b/arch/sh/kernel/syscalls.S @@ -322,3 +322,31 @@ ENTRY(sys_call_table) .long sys_add_key /* 285 */ .long sys_request_key .long sys_keyctl + .long sys_ioprio_set + .long sys_ioprio_get + .long sys_inotify_init /* 290 */ + .long sys_inotify_add_watch + .long sys_inotify_rm_watch + .long sys_migrate_pages + .long sys_openat + .long sys_mkdirat /* 295 */ + .long sys_mknodat + .long sys_fchownat + .long sys_futimesat + .long sys_fstatat64 + .long sys_unlinkat /* 300 */ + .long sys_renameat + .long sys_linkat + .long sys_symlinkat + .long sys_readlinkat + .long sys_fchmodat /* 305 */ + .long sys_faccessat + .long sys_ni_syscall /* Reserved for pselect6 */ + .long sys_ni_syscall /* Reserved for ppoll */ + .long sys_unshare + .long sys_set_robust_list /* 310 */ + .long sys_get_robust_list + .long sys_splice + .long sys_sync_file_range + .long sys_tee + .long sys_vmsplice /* 315 */ diff --git a/include/asm-sh/unistd.h b/include/asm-sh/unistd.h index 76b5430cb458..49c6a6ee0ab2 100644 --- a/include/asm-sh/unistd.h +++ b/include/asm-sh/unistd.h @@ -300,9 +300,31 @@ #define __NR_inotify_init 290 #define __NR_inotify_add_watch 291 #define __NR_inotify_rm_watch 292 +#define __NR_migrate_pages 293 +#define __NR_openat 294 +#define __NR_mkdirat 295 +#define __NR_mknodat 296 +#define __NR_fchownat 297 +#define __NR_futimesat 298 +#define __NR_fstatat64 299 +#define __NR_unlinkat 300 +#define __NR_renameat 301 +#define __NR_linkat 302 +#define __NR_symlinkat 303 +#define __NR_readlinkat 304 +#define __NR_fchmodat 305 +#define __NR_faccessat 305 +#define __NR_pselect6 307 +#define __NR_ppoll 308 +#define __NR_unshare 309 +#define __NR_set_robust_list 310 +#define __NR_get_robust_list 311 +#define __NR_splice 312 +#define __NR_sync_file_range 313 +#define __NR_tee 314 +#define __NR_vmsplice 315 - -#define NR_syscalls 293 +#define NR_syscalls 316 #ifdef __KERNEL__ -- cgit v1.2.3 From 8b395265f81817385f12e62f03f795efb732a445 Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Wed, 27 Sep 2006 14:38:02 +0900 Subject: sh: Fix fatal oops in copy_user_page() on sh4a (SH7780). We had a pretty interesting oops happening, where copy_user_page() was down()'ing p3map_sem[] with a bogus offset (particularly, an offset that hadn't been initialized with sema_init(), due to the mismatch between cpu_data->dcache.n_aliases and what was assumed based off of the old CACHE_ALIAS value). Luckily, spinlock debugging caught this for us, and so we drop the old hardcoded CACHE_ALIAS for sh4 completely and rely on the run-time probed cpu_data->dcache.alias_mask. This in turn gets the p3map_sem[] index right, and everything works again. While we're at it, also convert to 4-level page tables.. Signed-off-by: Paul Mundt --- arch/sh/mm/pg-sh4.c | 24 ++++++++++++++---------- include/asm-sh/cpu-sh4/cacheflush.h | 4 ---- 2 files changed, 14 insertions(+), 14 deletions(-) (limited to 'include') diff --git a/arch/sh/mm/pg-sh4.c b/arch/sh/mm/pg-sh4.c index c776b60fc250..07371ed7a313 100644 --- a/arch/sh/mm/pg-sh4.c +++ b/arch/sh/mm/pg-sh4.c @@ -2,7 +2,7 @@ * arch/sh/mm/pg-sh4.c * * Copyright (C) 1999, 2000, 2002 Niibe Yutaka - * Copyright (C) 2002 Paul Mundt + * Copyright (C) 2002 - 2005 Paul Mundt * * Released under the terms of the GNU GPL v2.0. */ @@ -23,6 +23,8 @@ extern struct semaphore p3map_sem[]; +#define CACHE_ALIAS (cpu_data->dcache.alias_mask) + /* * clear_user_page * @to: P1 address @@ -35,14 +37,15 @@ void clear_user_page(void *to, unsigned long address, struct page *page) if (((address ^ (unsigned long)to) & CACHE_ALIAS) == 0) clear_page(to); else { - pgprot_t pgprot = __pgprot(_PAGE_PRESENT | + pgprot_t pgprot = __pgprot(_PAGE_PRESENT | _PAGE_RW | _PAGE_CACHABLE | - _PAGE_DIRTY | _PAGE_ACCESSED | + _PAGE_DIRTY | _PAGE_ACCESSED | _PAGE_HW_SHARED | _PAGE_FLAGS_HARD); unsigned long phys_addr = PHYSADDR(to); unsigned long p3_addr = P3SEG + (address & CACHE_ALIAS); - pgd_t *dir = pgd_offset_k(p3_addr); - pmd_t *pmd = pmd_offset(dir, p3_addr); + pgd_t *pgd = pgd_offset_k(p3_addr); + pud_t *pud = pud_offset(pgd, p3_addr); + pmd_t *pmd = pmd_offset(pud, p3_addr); pte_t *pte = pte_offset_kernel(pmd, p3_addr); pte_t entry; unsigned long flags; @@ -67,21 +70,22 @@ void clear_user_page(void *to, unsigned long address, struct page *page) * @address: U0 address to be mapped * @page: page (virt_to_page(to)) */ -void copy_user_page(void *to, void *from, unsigned long address, +void copy_user_page(void *to, void *from, unsigned long address, struct page *page) { __set_bit(PG_mapped, &page->flags); if (((address ^ (unsigned long)to) & CACHE_ALIAS) == 0) copy_page(to, from); else { - pgprot_t pgprot = __pgprot(_PAGE_PRESENT | + pgprot_t pgprot = __pgprot(_PAGE_PRESENT | _PAGE_RW | _PAGE_CACHABLE | - _PAGE_DIRTY | _PAGE_ACCESSED | + _PAGE_DIRTY | _PAGE_ACCESSED | _PAGE_HW_SHARED | _PAGE_FLAGS_HARD); unsigned long phys_addr = PHYSADDR(to); unsigned long p3_addr = P3SEG + (address & CACHE_ALIAS); - pgd_t *dir = pgd_offset_k(p3_addr); - pmd_t *pmd = pmd_offset(dir, p3_addr); + pgd_t *pgd = pgd_offset_k(p3_addr); + pud_t *pud = pud_offset(pgd, p3_addr); + pmd_t *pmd = pmd_offset(pud, p3_addr); pte_t *pte = pte_offset_kernel(pmd, p3_addr); pte_t entry; unsigned long flags; diff --git a/include/asm-sh/cpu-sh4/cacheflush.h b/include/asm-sh/cpu-sh4/cacheflush.h index f323567e085f..ea58c4c5944d 100644 --- a/include/asm-sh/cpu-sh4/cacheflush.h +++ b/include/asm-sh/cpu-sh4/cacheflush.h @@ -16,10 +16,6 @@ * caching; in which case they're only semi-broken), * so we need them. */ - -/* Page is 4K, OC size is 16K, there are four lines. */ -#define CACHE_ALIAS 0x00003000 - struct page; struct mm_struct; struct vm_area_struct; -- cgit v1.2.3 From 634bf4f69b925950ddb09ef99ad7516a449a4333 Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Wed, 27 Sep 2006 14:48:09 +0900 Subject: sh: Fix libata build. Drop virt_to_bus() from sg_dma_address() so libata builds. While we're at it, move sg_dma_address() and sg_dma_len() from pci.h to scatterlist.h. Signed-off-by: Paul Mundt --- include/asm-sh/pci.h | 9 --------- include/asm-sh/scatterlist.h | 9 +++++++++ 2 files changed, 9 insertions(+), 9 deletions(-) (limited to 'include') diff --git a/include/asm-sh/pci.h b/include/asm-sh/pci.h index 0a523c85b11c..18a109de0f2e 100644 --- a/include/asm-sh/pci.h +++ b/include/asm-sh/pci.h @@ -87,15 +87,6 @@ static inline void pcibios_penalize_isa_irq(int irq, int active) */ #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, or alternatively stop on the first sg_dma_len(sg) which - * is 0. - */ -#define sg_dma_address(sg) (virt_to_bus((sg)->dma_address)) -#define sg_dma_len(sg) ((sg)->length) - #ifdef CONFIG_PCI static inline void pci_dma_burst_advice(struct pci_dev *pdev, enum pci_dma_burst_strategy *strat, diff --git a/include/asm-sh/scatterlist.h b/include/asm-sh/scatterlist.h index 7b91df140022..d19e7cd3b023 100644 --- a/include/asm-sh/scatterlist.h +++ b/include/asm-sh/scatterlist.h @@ -10,4 +10,13 @@ struct scatterlist { #define ISA_DMA_THRESHOLD (0x1fffffff) +/* 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, or alternatively stop on the first sg_dma_len(sg) which + * is 0. + */ +#define sg_dma_address(sg) ((sg)->dma_address) +#define sg_dma_len(sg) ((sg)->length) + #endif /* !(__ASM_SH_SCATTERLIST_H) */ -- cgit v1.2.3 From 94c0fa520cc169ccf661e9c03b5b95f74d1520b8 Mon Sep 17 00:00:00 2001 From: kogiidena Date: Wed, 27 Sep 2006 14:53:35 +0900 Subject: sh: landisk board support. This adds support for the I-O DATA Landisk. Signed-off-by: kogiidena Signed-off-by: Paul Mundt --- arch/sh/Makefile | 1 + arch/sh/boards/landisk/Makefile | 7 + arch/sh/boards/landisk/io.c | 322 ++++++++ arch/sh/boards/landisk/irq.c | 105 +++ arch/sh/boards/landisk/landisk_pwb.c | 348 ++++++++ arch/sh/boards/landisk/rtc.c | 102 +++ arch/sh/boards/landisk/setup.c | 218 +++++ arch/sh/configs/landisk_defconfig | 1373 +++++++++++++++++++++++++++++++ arch/sh/tools/mach-types | 2 +- include/asm-sh/landisk/gio.h | 45 + include/asm-sh/landisk/ide.h | 14 + include/asm-sh/landisk/iodata_landisk.h | 78 ++ 12 files changed, 2614 insertions(+), 1 deletion(-) create mode 100644 arch/sh/boards/landisk/Makefile create mode 100644 arch/sh/boards/landisk/io.c create mode 100644 arch/sh/boards/landisk/irq.c create mode 100644 arch/sh/boards/landisk/landisk_pwb.c create mode 100644 arch/sh/boards/landisk/rtc.c create mode 100644 arch/sh/boards/landisk/setup.c create mode 100644 arch/sh/configs/landisk_defconfig create mode 100644 include/asm-sh/landisk/gio.h create mode 100644 include/asm-sh/landisk/ide.h create mode 100644 include/asm-sh/landisk/iodata_landisk.h (limited to 'include') diff --git a/arch/sh/Makefile b/arch/sh/Makefile index 66cf0ea6d38f..e9112def48dd 100644 --- a/arch/sh/Makefile +++ b/arch/sh/Makefile @@ -105,6 +105,7 @@ machdir-$(CONFIG_SH_RTS7751R2D) := renesas/rts7751r2d machdir-$(CONFIG_SH_7751_SYSTEMH) := renesas/systemh machdir-$(CONFIG_SH_EDOSK7705) := renesas/edosk7705 machdir-$(CONFIG_SH_SH4202_MICRODEV) := superh/microdev +machdir-$(CONFIG_SH_LANDISK) := landisk machdir-$(CONFIG_SH_UNKNOWN) := unknown incdir-y := $(notdir $(machdir-y)) diff --git a/arch/sh/boards/landisk/Makefile b/arch/sh/boards/landisk/Makefile new file mode 100644 index 000000000000..60e75c6db0eb --- /dev/null +++ b/arch/sh/boards/landisk/Makefile @@ -0,0 +1,7 @@ +# +# Makefile for I-O DATA DEVICE, INC. "LANDISK Series" +# + +obj-y := setup.o io.o irq.o rtc.o landisk_pwb.o + +obj-$(CONFIG_PCI) += pci.o diff --git a/arch/sh/boards/landisk/io.c b/arch/sh/boards/landisk/io.c new file mode 100644 index 000000000000..1f1679af09d0 --- /dev/null +++ b/arch/sh/boards/landisk/io.c @@ -0,0 +1,322 @@ +/* + * arch/sh/boards/landisk/io.c + * + * Copyright (C) 2001 Ian da Silva, Jeremy Siegel + * Based largely on io_se.c. + * + * I/O routine for I-O Data Device, Inc. LANDISK. + * + * Initial version only to support LAN access; some + * placeholder code from io_landisk.c left in with the + * expectation of later SuperIO and PCMCIA access. + */ +/* + * modifed by kogiidena + * 2005.03.03 + */ + +#include +#include +#include +#include +#include + +#include +#include +#include "../../drivers/pci/pci-sh7751.h" + +extern void *area5_io_base; /* Area 5 I/O Base address */ +extern void *area6_io_base; /* Area 6 I/O Base address */ + +/* + * The 7751R LANDISK uses the built-in PCI controller (PCIC) + * of the 7751R processor, and has a SuperIO accessible via the PCI. + * The board also includes a PCMCIA controller on its memory bus, + * like the other Solution Engine boards. + */ + +#define PCIIOBR (volatile long *)PCI_REG(SH7751_PCIIOBR) +#define PCIMBR (volatile long *)PCI_REG(SH7751_PCIMBR) +#define PCI_IO_AREA SH7751_PCI_IO_BASE +#define PCI_MEM_AREA SH7751_PCI_CONFIG_BASE + +#define PCI_IOMAP(adr) (PCI_IO_AREA + (adr & ~SH7751_PCIIOBR_MASK)) + +#define maybebadio(name,port) \ + printk("bad PC-like io %s for port 0x%lx at 0x%08x\n", \ + #name, (port), (__u32) __builtin_return_address(0)) + +static inline void delay(void) +{ + ctrl_inw(0xa0000000); +} + +static inline unsigned long port2adr(unsigned int port) +{ + if ((0x1f0 <= port && port < 0x1f8) || port == 0x3f6) + if (port == 0x3f6) + return ((unsigned long)area5_io_base + 0x2c); + else + return ((unsigned long)area5_io_base + PA_PIDE_OFFSET + + ((port - 0x1f0) << 1)); + else if ((0x170 <= port && port < 0x178) || port == 0x376) + if (port == 0x376) + return ((unsigned long)area6_io_base + 0x2c); + else + return ((unsigned long)area6_io_base + PA_SIDE_OFFSET + + ((port - 0x170) << 1)); + else + maybebadio(port2adr, (unsigned long)port); + + return port; +} + +/* In case someone configures the kernel w/o PCI support: in that */ +/* scenario, don't ever bother to check for PCI-window addresses */ + +/* NOTE: WINDOW CHECK MAY BE A BIT OFF, HIGH PCIBIOS_MIN_IO WRAPS? */ +#if defined(CONFIG_PCI) +#define CHECK_SH7751_PCIIO(port) \ + ((port >= PCIBIOS_MIN_IO) && (port < (PCIBIOS_MIN_IO + SH7751_PCI_IO_SIZE))) +#else +#define CHECK_SH_7751_PCIIO(port) (0) +#endif + +/* + * General outline: remap really low stuff [eventually] to SuperIO, + * stuff in PCI IO space (at or above window at pci.h:PCIBIOS_MIN_IO) + * is mapped through the PCI IO window. Stuff with high bits (PXSEG) + * should be way beyond the window, and is used w/o translation for + * compatibility. + */ +unsigned char landisk_inb(unsigned long port) +{ + if (PXSEG(port)) + return *(volatile unsigned char *)port; + else if (CHECK_SH7751_PCIIO(port)) + return *(volatile unsigned char *)PCI_IOMAP(port); + else + return (*(volatile unsigned short *)port2adr(port) & 0xff); +} + +unsigned char landisk_inb_p(unsigned long port) +{ + unsigned char v; + + if (PXSEG(port)) + v = *(volatile unsigned char *)port; + else if (CHECK_SH7751_PCIIO(port)) + v = *(volatile unsigned char *)PCI_IOMAP(port); + else + v = (*(volatile unsigned short *)port2adr(port) & 0xff); + delay(); + + return v; +} + +unsigned short landisk_inw(unsigned long port) +{ + if (PXSEG(port)) + return *(volatile unsigned short *)port; + else if (CHECK_SH7751_PCIIO(port)) + return *(volatile unsigned short *)PCI_IOMAP(port); + else + maybebadio(inw, port); + + return 0; +} + +unsigned int landisk_inl(unsigned long port) +{ + if (PXSEG(port)) + return *(volatile unsigned long *)port; + else if (CHECK_SH7751_PCIIO(port)) + return *(volatile unsigned long *)PCI_IOMAP(port); + else + maybebadio(inl, port); + + return 0; +} + +void landisk_outb(unsigned char value, unsigned long port) +{ + + if (PXSEG(port)) + *(volatile unsigned char *)port = value; + else if (CHECK_SH7751_PCIIO(port)) + *(volatile unsigned char *)PCI_IOMAP(port) = value; + else + *(volatile unsigned short *)port2adr(port) = value; +} + +void landisk_outb_p(unsigned char value, unsigned long port) +{ + if (PXSEG(port)) + *(volatile unsigned char *)port = value; + else if (CHECK_SH7751_PCIIO(port)) + *(volatile unsigned char *)PCI_IOMAP(port) = value; + else + *(volatile unsigned short *)port2adr(port) = value; + delay(); +} + +void landisk_outw(unsigned short value, unsigned long port) +{ + if (PXSEG(port)) + *(volatile unsigned short *)port = value; + else if (CHECK_SH7751_PCIIO(port)) + *(volatile unsigned short *)PCI_IOMAP(port) = value; + else + maybebadio(outw, port); +} + +void landisk_outl(unsigned int value, unsigned long port) +{ + if (PXSEG(port)) + *(volatile unsigned long *)port = value; + else if (CHECK_SH7751_PCIIO(port)) + *(volatile unsigned long *)PCI_IOMAP(port) = value; + else + maybebadio(outl, port); +} + +void landisk_insb(unsigned long port, void *addr, unsigned long count) +{ + if (PXSEG(port)) + while (count--) + *((unsigned char *)addr)++ = + *(volatile unsigned char *)port; + else if (CHECK_SH7751_PCIIO(port)) { + volatile __u8 *bp = (__u8 *) PCI_IOMAP(port); + + while (count--) + *((volatile unsigned char *)addr)++ = *bp; + } else { + volatile __u16 *p = (volatile unsigned short *)port2adr(port); + + while (count--) + *((unsigned char *)addr)++ = *p; + } +} + +void landisk_insw(unsigned long port, void *addr, unsigned long count) +{ + volatile __u16 *p; + + if (PXSEG(port)) + p = (volatile unsigned short *)port; + else if (CHECK_SH7751_PCIIO(port)) + p = (volatile unsigned short *)PCI_IOMAP(port); + else + p = (volatile unsigned short *)port2adr(port); + while (count--) + *((__u16 *) addr)++ = *p; +} + +void landisk_insl(unsigned long port, void *addr, unsigned long count) +{ + if (CHECK_SH7751_PCIIO(port)) { + volatile __u32 *p = (__u32 *) PCI_IOMAP(port); + + while (count--) + *((__u32 *) addr)++ = *p; + } else + maybebadio(insl, port); +} + +void landisk_outsb(unsigned long port, const void *addr, unsigned long count) +{ + if (PXSEG(port)) + while (count--) + *(volatile unsigned char *)port = + *((unsigned char *)addr)++; + else if (CHECK_SH7751_PCIIO(port)) { + volatile __u8 *bp = (__u8 *) PCI_IOMAP(port); + + while (count--) + *bp = *((volatile unsigned char *)addr)++; + } else { + volatile __u16 *p = (volatile unsigned short *)port2adr(port); + + while (count--) + *p = *((unsigned char *)addr)++; + } +} + +void landisk_outsw(unsigned long port, const void *addr, unsigned long count) +{ + volatile __u16 *p; + + if (PXSEG(port)) + p = (volatile unsigned short *)port; + else if (CHECK_SH7751_PCIIO(port)) + p = (volatile unsigned short *)PCI_IOMAP(port); + else + p = (volatile unsigned short *)port2adr(port); + while (count--) + *p = *((__u16 *) addr)++; +} + +void landisk_outsl(unsigned long port, const void *addr, unsigned long count) +{ + if (CHECK_SH7751_PCIIO(port)) { + volatile __u32 *p = (__u32 *) PCI_IOMAP(port); + + while (count--) + *p = *((__u32 *) addr)++; + } else + maybebadio(outsl, port); +} + +/* For read/write calls, just copy generic (pass-thru); PCIMBR is */ +/* already set up. For a larger memory space, these would need to */ +/* reset PCIMBR as needed on a per-call basis... */ + +unsigned char landisk_readb(unsigned long addr) +{ + return *(volatile unsigned char *)addr; +} + +unsigned short landisk_readw(unsigned long addr) +{ + return *(volatile unsigned short *)addr; +} + +unsigned int landisk_readl(unsigned long addr) +{ + return *(volatile unsigned long *)addr; +} + +void landisk_writeb(unsigned char b, unsigned long addr) +{ + *(volatile unsigned char *)addr = b; +} + +void landisk_writew(unsigned short b, unsigned long addr) +{ + *(volatile unsigned short *)addr = b; +} + +void landisk_writel(unsigned int b, unsigned long addr) +{ + *(volatile unsigned long *)addr = b; +} + +void *landisk_ioremap(unsigned long offset, unsigned long size) +{ + if (offset >= 0xfd000000) + return (void *)offset; + else + return (void *)P2SEGADDR(offset); +} + +void landisk_iounmap(void *addr) +{ +} + +/* Map ISA bus address to the real address. Only for PCMCIA. */ + +unsigned long landisk_isa_port2addr(unsigned long offset) +{ + return port2adr(offset); +} diff --git a/arch/sh/boards/landisk/irq.c b/arch/sh/boards/landisk/irq.c new file mode 100644 index 000000000000..1dcc3feb7a44 --- /dev/null +++ b/arch/sh/boards/landisk/irq.c @@ -0,0 +1,105 @@ +/* + * arch/sh/boards/landisk/irq.c + * + * Copyright (C) 2001 Ian da Silva, Jeremy Siegel + * Based largely on io_se.c. + * + * I/O routine for I-O Data Device, Inc. LANDISK. + * + * Initial version only to support LAN access; some + * placeholder code from io_landisk.c left in with the + * expectation of later SuperIO and PCMCIA access. + */ +/* + * modified by kogiidena + * 2005.03.03 + */ + +#include +#include +#include +#include +#include +#include + +static void enable_landisk_irq(unsigned int irq); +static void disable_landisk_irq(unsigned int irq); + +/* shutdown is same as "disable" */ +#define shutdown_landisk_irq disable_landisk_irq + +static void ack_landisk_irq(unsigned int irq); +static void end_landisk_irq(unsigned int irq); + +static unsigned int startup_landisk_irq(unsigned int irq) +{ + enable_landisk_irq(irq); + return 0; /* never anything pending */ +} + +static void disable_landisk_irq(unsigned int irq) +{ + unsigned long flags; + unsigned char val; + unsigned char mask = 0xff ^ (0x01 << (irq - 5)); + + /* Set the priority in IPR to 0 */ + local_irq_save(flags); + val = ctrl_inb(PA_IMASK); + val &= mask; + ctrl_outb(val, PA_IMASK); + local_irq_restore(flags); +} + +static void enable_landisk_irq(unsigned int irq) +{ + unsigned long flags; + unsigned char val; + unsigned char value = (0x01 << (irq - 5)); + + /* Set priority in IPR back to original value */ + local_irq_save(flags); + val = ctrl_inb(PA_IMASK); + val |= value; + ctrl_outb(val, PA_IMASK); + local_irq_restore(flags); +} + +static void ack_landisk_irq(unsigned int irq) +{ + disable_landisk_irq(irq); +} + +static void end_landisk_irq(unsigned int irq) +{ + if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS))) + enable_landisk_irq(irq); +} + +static struct hw_interrupt_type landisk_irq_type = { + .typename = "LANDISK IRQ", + .startup = startup_landisk_irq, + .shutdown = shutdown_landisk_irq, + .enable = enable_landisk_irq, + .disable = disable_landisk_irq, + .ack = ack_landisk_irq, + .end = end_landisk_irq +}; + +static void make_landisk_irq(unsigned int irq) +{ + disable_irq_nosync(irq); + irq_desc[irq].handler = &landisk_irq_type; + disable_landisk_irq(irq); +} + +/* + * Initialize IRQ setting + */ +void __init init_landisk_IRQ(void) +{ + int i; + + for (i = 5; i < 14; i++) + make_landisk_irq(i); +} diff --git a/arch/sh/boards/landisk/landisk_pwb.c b/arch/sh/boards/landisk/landisk_pwb.c new file mode 100644 index 000000000000..e75cb578a28b --- /dev/null +++ b/arch/sh/boards/landisk/landisk_pwb.c @@ -0,0 +1,348 @@ +/* + * arch/sh/boards/landisk/landisk_pwb.c -- driver for the Power control switch. + * + * This driver will also support the I-O DATA Device, Inc. LANDISK Board. + * + * 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. + * + * Copylight (C) 2002 Atom Create Engineering Co., Ltd. + * + * LED control drive function added by kogiidena + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include + +#define SHUTDOWN_BTN_MINOR 1 /* Shutdown button device minor no. */ +#define LED_MINOR 21 /* LED minor no. */ +#define BTN_MINOR 22 /* BUTTON minor no. */ +#define GIO_MINOR 40 /* GIO minor no. */ + +static int openCnt; +static int openCntLED; +static int openCntGio; +static int openCntBtn; +static int landisk_btn; +static int landisk_btnctrlpid; +/* + * Functions prototypes + */ + +static int gio_ioctl(struct inode *inode, struct file *filp, unsigned int cmd, + unsigned long arg); + +static int swdrv_open(struct inode *inode, struct file *filp) +{ + int minor; + + minor = MINOR(inode->i_rdev); + filp->private_data = (void *)minor; + + if (minor == SHUTDOWN_BTN_MINOR) { + if (openCnt > 0) { + return -EALREADY; + } else { + openCnt++; + return 0; + } + } else if (minor == LED_MINOR) { + if (openCntLED > 0) { + return -EALREADY; + } else { + openCntLED++; + return 0; + } + } else if (minor == BTN_MINOR) { + if (openCntBtn > 0) { + return -EALREADY; + } else { + openCntBtn++; + return 0; + } + } else if (minor == GIO_MINOR) { + if (openCntGio > 0) { + return -EALREADY; + } else { + openCntGio++; + return 0; + } + } + return -ENOENT; + +} + +static int swdrv_close(struct inode *inode, struct file *filp) +{ + int minor; + + minor = MINOR(inode->i_rdev); + if (minor == SHUTDOWN_BTN_MINOR) { + openCnt--; + } else if (minor == LED_MINOR) { + openCntLED--; + } else if (minor == BTN_MINOR) { + openCntBtn--; + } else if (minor == GIO_MINOR) { + openCntGio--; + } + return 0; +} + +static int swdrv_read(struct file *filp, char *buff, size_t count, + loff_t * ppos) +{ + int minor; + minor = (int)(filp->private_data); + + if (!access_ok(VERIFY_WRITE, (void *)buff, count)) + return -EFAULT; + + if (minor == SHUTDOWN_BTN_MINOR) { + if (landisk_btn & 0x10) { + put_user(1, buff); + return 1; + } else { + return 0; + } + } + return 0; +} + +static int swdrv_write(struct file *filp, const char *buff, size_t count, + loff_t * ppos) +{ + int minor; + minor = (int)(filp->private_data); + + if (minor == SHUTDOWN_BTN_MINOR) { + return count; + } + return count; +} + +static irqreturn_t sw_interrupt(int irq, void *dev_id, struct pt_regs *regs) +{ + landisk_btn = (0x0ff & (~ctrl_inb(PA_STATUS))); + disable_irq(IRQ_BUTTON); + disable_irq(IRQ_POWER); + ctrl_outb(0x00, PA_PWRINT_CLR); + + if (landisk_btnctrlpid != 0) { + kill_proc(landisk_btnctrlpid, SIGUSR1, 1); + landisk_btnctrlpid = 0; + } + + return IRQ_HANDLED; +} + +static struct file_operations swdrv_fops = { + .read = swdrv_read, /* read */ + .write = swdrv_write, /* write */ + .open = swdrv_open, /* open */ + .release = swdrv_close, /* release */ + .ioctl = gio_ioctl, /* ioctl */ + +}; + +static char banner[] __initdata = + KERN_INFO "LANDISK and USL-5P Button, LED and GIO driver initialized\n"; + +int __init swdrv_init(void) +{ + int error; + + printk("%s", banner); + + openCnt = 0; + openCntLED = 0; + openCntBtn = 0; + openCntGio = 0; + landisk_btn = 0; + landisk_btnctrlpid = 0; + + if ((error = register_chrdev(SHUTDOWN_BTN_MAJOR, "swdrv", &swdrv_fops))) { + printk(KERN_ERR + "Button, LED and GIO driver:Couldn't register driver, error=%d\n", + error); + return 1; + } + + if (request_irq(IRQ_POWER, sw_interrupt, 0, "SHUTDOWNSWITCH", NULL)) { + printk(KERN_ERR "Unable to get IRQ 11.\n"); + return 1; + } + if (request_irq(IRQ_BUTTON, sw_interrupt, 0, "USL-5P BUTTON", NULL)) { + printk(KERN_ERR "Unable to get IRQ 12.\n"); + return 1; + } + ctrl_outb(0x00, PA_PWRINT_CLR); + + return 0; +} + +module_init(swdrv_init); + +/* + * gio driver + * + */ + +#include + +static int gio_ioctl(struct inode *inode, struct file *filp, + unsigned int cmd, unsigned long arg) +{ + int minor; + unsigned int data, mask; + static unsigned int addr = 0; + + minor = (int)(filp->private_data); + + /* access control */ + if (minor == GIO_MINOR) { + ; + } else if (minor == LED_MINOR) { + if (((cmd & 0x0ff) >= 9) && ((cmd & 0x0ff) < 20)) { + ; + } else { + return -EINVAL; + } + } else if (minor == BTN_MINOR) { + if (((cmd & 0x0ff) >= 20) && ((cmd & 0x0ff) < 30)) { + ; + } else { + return -EINVAL; + } + } else { + return -EINVAL; + } + + if (cmd & 0x01) { /* write */ + if (copy_from_user(&data, (int *)arg, sizeof(int))) { + return -EFAULT; + } + } + + switch (cmd) { + case GIODRV_IOCSGIOSETADDR: /* addres set */ + addr = data; + break; + + case GIODRV_IOCSGIODATA1: /* write byte */ + ctrl_outb((unsigned char)(0x0ff & data), addr); + break; + + case GIODRV_IOCSGIODATA2: /* write word */ + if (addr & 0x01) { + return -EFAULT; + } + ctrl_outw((unsigned short int)(0x0ffff & data), addr); + break; + + case GIODRV_IOCSGIODATA4: /* write long */ + if (addr & 0x03) { + return -EFAULT; + } + ctrl_outl(data, addr); + break; + + case GIODRV_IOCGGIODATA1: /* read byte */ + data = ctrl_inb(addr); + break; + + case GIODRV_IOCGGIODATA2: /* read word */ + if (addr & 0x01) { + return -EFAULT; + } + data = ctrl_inw(addr); + break; + + case GIODRV_IOCGGIODATA4: /* read long */ + if (addr & 0x03) { + return -EFAULT; + } + data = ctrl_inl(addr); + break; + case GIODRV_IOCSGIO_LED: /* write */ + mask = ((data & 0x00ffffff) << 8) + | ((data & 0x0000ffff) << 16) + | ((data & 0x000000ff) << 24); + landisk_ledparam = data & (~mask); + if (landisk_arch == 0) { /* arch == landisk */ + landisk_ledparam &= 0x03030303; + mask = (~(landisk_ledparam >> 22)) & 0x000c; + landisk_ledparam |= mask; + } else { /* arch == usl-5p */ + mask = (landisk_ledparam >> 24) & 0x0001; + landisk_ledparam |= mask; + landisk_ledparam &= 0x007f7f7f; + } + landisk_ledparam |= 0x80; + break; + case GIODRV_IOCGGIO_LED: /* read */ + data = landisk_ledparam; + if (landisk_arch == 0) { /* arch == landisk */ + data &= 0x03030303; + } else { /* arch == usl-5p */ + ; + } + data &= (~0x080); + break; + case GIODRV_IOCSGIO_BUZZER: /* write */ + landisk_buzzerparam = data; + landisk_ledparam |= 0x80; + break; + case GIODRV_IOCGGIO_LANDISK: /* read */ + data = landisk_arch & 0x01; + break; + case GIODRV_IOCGGIO_BTN: /* read */ + data = (0x0ff & ctrl_inb(PA_PWRINT_CLR)); + data <<= 8; + data |= (0x0ff & ctrl_inb(PA_IMASK)); + data <<= 8; + data |= (0x0ff & landisk_btn); + data <<= 8; + data |= (0x0ff & (~ctrl_inb(PA_STATUS))); + break; + case GIODRV_IOCSGIO_BTNPID: /* write */ + landisk_btnctrlpid = data; + landisk_btn = 0; + if (irq_desc[IRQ_BUTTON].depth) { + enable_irq(IRQ_BUTTON); + } + if (irq_desc[IRQ_POWER].depth) { + enable_irq(IRQ_POWER); + } + break; + case GIODRV_IOCGGIO_BTNPID: /* read */ + data = landisk_btnctrlpid; + break; + default: + return -EFAULT; + break; + } + + if ((cmd & 0x01) == 0) { /* read */ + if (copy_to_user((int *)arg, &data, sizeof(int))) { + return -EFAULT; + } + } + return 0; +} diff --git a/arch/sh/boards/landisk/rtc.c b/arch/sh/boards/landisk/rtc.c new file mode 100644 index 000000000000..d666aa63303f --- /dev/null +++ b/arch/sh/boards/landisk/rtc.c @@ -0,0 +1,102 @@ +/* + * arch/sh/boards/landisk/rtc.c -- RTC support + * + * Copyright (C) 2000 Philipp Rumpf + * Copyright (C) 1999 Tetsuya Okada & Niibe Yutaka + */ +/* + * modifed by kogiidena + * 2005.09.16 + */ + +#include +#include +#include +#include +#include +#include +#include + +#ifndef BCD_TO_BIN +#define BCD_TO_BIN(val) ((val)=((val)&15) + ((val)>>4)*10) +#endif + +#ifndef BIN_TO_BCD +#define BIN_TO_BCD(val) ((val)=(((val)/10)<<4) + (val)%10) +#endif + +extern void (*rtc_get_time) (struct timespec *); +extern int (*rtc_set_time) (const time_t); +extern spinlock_t rtc_lock; + +extern void +rs5c313_set_cmos_time(unsigned int BCD_yr, unsigned int BCD_mon, + unsigned int BCD_day, unsigned int BCD_hr, + unsigned int BCD_min, unsigned int BCD_sec); + +extern unsigned long +rs5c313_get_cmos_time(unsigned int *BCD_yr, unsigned int *BCD_mon, + unsigned int *BCD_day, unsigned int *BCD_hr, + unsigned int *BCD_min, unsigned int *BCD_sec); + +void landisk_rtc_gettimeofday(struct timespec *tv) +{ + unsigned int BCD_yr, BCD_mon, BCD_day, BCD_hr, BCD_min, BCD_sec; + unsigned long flags; + + spin_lock_irqsave(&rtc_lock, flags); + tv->tv_sec = rs5c313_get_cmos_time + (&BCD_yr, &BCD_mon, &BCD_day, &BCD_hr, &BCD_min, &BCD_sec); + tv->tv_nsec = 0; + spin_unlock_irqrestore(&rtc_lock, flags); +} + +int landisk_rtc_settimeofday(const time_t secs) +{ + int retval = 0; + int real_seconds, real_minutes, cmos_minutes; + unsigned long flags; + unsigned long nowtime = secs; + unsigned int BCD_yr, BCD_mon, BCD_day, BCD_hr, BCD_min, BCD_sec; + + spin_lock_irqsave(&rtc_lock, flags); + + rs5c313_get_cmos_time + (&BCD_yr, &BCD_mon, &BCD_day, &BCD_hr, &BCD_min, &BCD_sec); + cmos_minutes = BCD_min; + BCD_TO_BIN(cmos_minutes); + + /* + * since we're only adjusting minutes and seconds, + * don't interfere with hour overflow. This avoids + * messing with unknown time zones but requires your + * RTC not to be off by more than 15 minutes + */ + real_seconds = nowtime % 60; + real_minutes = nowtime / 60; + if (((abs(real_minutes - cmos_minutes) + 15) / 30) & 1) + real_minutes += 30; /* correct for half hour time zone */ + real_minutes %= 60; + + if (abs(real_minutes - cmos_minutes) < 30) { + BIN_TO_BCD(real_seconds); + BIN_TO_BCD(real_minutes); + rs5c313_set_cmos_time(BCD_yr, BCD_mon, BCD_day, BCD_hr, + real_minutes, real_seconds); + } else { + printk(KERN_WARNING + "set_rtc_time: can't update from %d to %d\n", + cmos_minutes, real_minutes); + retval = -1; + } + + spin_unlock_irqrestore(&rtc_lock, flags); + return retval; +} + + +void landisk_time_init(void) +{ + rtc_get_time = landisk_rtc_gettimeofday; + rtc_set_time = landisk_rtc_settimeofday; +} diff --git a/arch/sh/boards/landisk/setup.c b/arch/sh/boards/landisk/setup.c new file mode 100644 index 000000000000..0c60eaa10ba7 --- /dev/null +++ b/arch/sh/boards/landisk/setup.c @@ -0,0 +1,218 @@ +/* + * arch/sh/boards/landisk/setup.c + * + * Copyright (C) 2002 Paul Mundt + * + * May be copied or modified under the terms of the GNU General Public + * License. See linux/COPYING for more information. + * + * Setup code for an unknown machine (internal peripherials only) + */ +/* + * linux/arch/sh/kernel/setup_landisk.c + * + * Copyright (C) 2000 Kazumoto Kojima + * + * I-O DATA Device, Inc. LANDISK Support. + * + * Modified for LANDISK by + * Atom Create Engineering Co., Ltd. 2002. + */ +/* + * modifed by kogiidena + * 2005.09.16 + */ + +#include +#include +#include +#include + +#include +#include +#include + +#include +#include +#include +#include +#include +#include + +#include +#include + +extern void (*board_time_init) (void); +void landisk_time_init(void); +extern void init_landisk_IRQ(void); + +int landisk_ledparam; +int landisk_buzzerparam; +int landisk_arch; + +/* defined in mm/ioremap.c */ +extern void *p3_ioremap(unsigned long phys_addr, unsigned long size, + unsigned long flags); + +/* + * Initialize the board + */ + +const char *get_system_type(void) +{ + return "LANDISK"; +} + +static void landisk_power_off(void) +{ + ctrl_outb(0x01, PA_SHUTDOWN); +} + +void check_usl5p(void) +{ + volatile unsigned char *p = (volatile unsigned char *)PA_LED; + unsigned char tmp1, tmp2; + tmp1 = *p; + *p = 0x40; + tmp2 = *p; + *p = tmp1; + landisk_arch = (tmp2 == 0x40) ? 1 : 0; + if (landisk_arch == 1) { /* arch == usl-5p */ + landisk_ledparam = 0x00000380; + landisk_ledparam |= (tmp1 & 0x07c); + } else { /* arch == landisk */ + landisk_ledparam = 0x02000180; + landisk_ledparam |= 0x04; + } + return; +} + +void __init platform_setup(void) +{ + + landisk_buzzerparam = 0; + check_usl5p(); + + printk(KERN_INFO "I-O DATA DEVICE, INC. \"LANDISK Series\" support.\n"); + board_time_init = landisk_time_init; + pm_power_off = landisk_power_off; + +} + +void *area5_io_base; +void *area6_io_base; + +int __init cf_init(void) +{ + pgprot_t prot; + unsigned long paddrbase, psize; + + /* open I/O area window */ + paddrbase = virt_to_phys((void *)PA_AREA5_IO); + psize = PAGE_SIZE; + prot = PAGE_KERNEL_PCC(1, _PAGE_PCC_IO16); + area5_io_base = p3_ioremap(paddrbase, psize, prot.pgprot); + if (!area5_io_base) { + printk("allocate_cf_area : can't open CF I/O window!\n"); + return -ENOMEM; + } + + paddrbase = virt_to_phys((void *)PA_AREA6_IO); + psize = PAGE_SIZE; + prot = PAGE_KERNEL_PCC(0, _PAGE_PCC_IO16); + area6_io_base = p3_ioremap(paddrbase, psize, prot.pgprot); + if (!area6_io_base) { + printk("allocate_cf_area : can't open HDD I/O window!\n"); + return -ENOMEM; + } + + printk(KERN_INFO "Allocate Area5/6 success.\n"); + + /* XXX : do we need attribute and common-memory area also? */ + + return 0; +} + +__initcall(cf_init); + +#include + +/* Cycle the LED's in the clasic knightrider/Sun pattern */ + +void heartbeat_landisk(void) +{ + static unsigned int cnt = 0, blink = 0x00, period = 25; + volatile unsigned char *p = (volatile unsigned char *)PA_LED; + char data; + + if ((landisk_ledparam & 0x080) == 0) { + return; + } + cnt += 1; + if (cnt < period) { + return; + } + cnt = 0; + blink++; + + data = (blink & 0x01) ? (landisk_ledparam >> 16) : 0; + data |= (blink & 0x02) ? (landisk_ledparam >> 8) : 0; + data |= landisk_ledparam; + + /* buzzer */ + if (landisk_buzzerparam & 0x1) { + data |= 0x80; + } else { + data &= 0x7f; + } + *p = data; + + if (((landisk_ledparam & 0x007f7f00) == 0) + && (landisk_buzzerparam == 0)) { + landisk_ledparam &= (~0x0080); + } + landisk_buzzerparam >>= 1; +} + +/* + * The Machine Vector + */ + +struct sh_machine_vector mv_landisk __initmv = { + .mv_nr_irqs = 72, + .mv_inb = landisk_inb, + .mv_inw = landisk_inw, + .mv_inl = landisk_inl, + .mv_outb = landisk_outb, + .mv_outw = landisk_outw, + .mv_outl = landisk_outl, + .mv_inb_p = landisk_inb_p, + .mv_inw_p = landisk_inw, + .mv_inl_p = landisk_inl, + .mv_outb_p = landisk_outb_p, + .mv_outw_p = landisk_outw, + .mv_outl_p = landisk_outl, + .mv_insb = landisk_insb, + .mv_insw = landisk_insw, + .mv_insl = landisk_insl, + .mv_outsb = landisk_outsb, + .mv_outsw = landisk_outsw, + .mv_outsl = landisk_outsl, + .mv_readb = landisk_readb, + .mv_readw = landisk_readw, + .mv_readl = landisk_readl, + .mv_writeb = landisk_writeb, + .mv_writew = landisk_writew, + .mv_writel = landisk_writel, + .mv_ioremap = landisk_ioremap, + .mv_iounmap = landisk_iounmap, + .mv_isa_port2addr = landisk_isa_port2addr, + .mv_init_irq = init_landisk_IRQ, + +#ifdef CONFIG_HEARTBEAT + .mv_heartbeat = heartbeat_landisk, +#endif + +}; + +ALIAS_MV(landisk) diff --git a/arch/sh/configs/landisk_defconfig b/arch/sh/configs/landisk_defconfig new file mode 100644 index 000000000000..6b43316d03cf --- /dev/null +++ b/arch/sh/configs/landisk_defconfig @@ -0,0 +1,1373 @@ +# +# Automatically generated make config: don't edit +# Linux kernel version: 2.6.13-sh +# Sun Sep 11 13:00:46 2005 +# +CONFIG_SUPERH=y +CONFIG_UID16=y +CONFIG_RWSEM_GENERIC_SPINLOCK=y +CONFIG_GENERIC_HARDIRQS=y +CONFIG_GENERIC_IRQ_PROBE=y +CONFIG_GENERIC_CALIBRATE_DELAY=y +CONFIG_GENERIC_IOMAP=y + +# +# Code maturity level options +# +CONFIG_EXPERIMENTAL=y +CONFIG_CLEAN_COMPILE=y +CONFIG_BROKEN_ON_SMP=y +CONFIG_INIT_ENV_ARG_LIMIT=32 + +# +# General setup +# +CONFIG_LOCALVERSION="" +CONFIG_LOCALVERSION_AUTO=y +CONFIG_SWAP=y +CONFIG_SYSVIPC=y +# CONFIG_POSIX_MQUEUE is not set +# CONFIG_BSD_PROCESS_ACCT is not set +CONFIG_SYSCTL=y +# CONFIG_AUDIT is not set +CONFIG_HOTPLUG=y +CONFIG_KOBJECT_UEVENT=y +# CONFIG_IKCONFIG is not set +CONFIG_INITRAMFS_SOURCE="" +# CONFIG_EMBEDDED is not set +CONFIG_KALLSYMS=y +CONFIG_KALLSYMS_EXTRA_PASS=y +CONFIG_PRINTK=y +CONFIG_BUG=y +CONFIG_BASE_FULL=y +CONFIG_FUTEX=y +CONFIG_EPOLL=y +CONFIG_SHMEM=y +CONFIG_CC_ALIGN_FUNCTIONS=0 +CONFIG_CC_ALIGN_LABELS=0 +CONFIG_CC_ALIGN_LOOPS=0 +CONFIG_CC_ALIGN_JUMPS=0 +# CONFIG_TINY_SHMEM is not set +CONFIG_BASE_SMALL=0 + +# +# Loadable module support +# +CONFIG_MODULES=y +CONFIG_MODULE_UNLOAD=y +CONFIG_MODULE_FORCE_UNLOAD=y +CONFIG_OBSOLETE_MODPARM=y +# CONFIG_MODVERSIONS is not set +# CONFIG_MODULE_SRCVERSION_ALL is not set +CONFIG_KMOD=y + +# +# System type +# +# CONFIG_SH_SOLUTION_ENGINE is not set +# CONFIG_SH_7751_SOLUTION_ENGINE is not set +# CONFIG_SH_7300_SOLUTION_ENGINE is not set +# CONFIG_SH_73180_SOLUTION_ENGINE is not set +# CONFIG_SH_7751_SYSTEMH is not set +# CONFIG_SH_STB1_HARP is not set +# CONFIG_SH_STB1_OVERDRIVE is not set +# CONFIG_SH_HP6XX is not set +# CONFIG_SH_CQREEK is not set +# CONFIG_SH_DMIDA is not set +# CONFIG_SH_EC3104 is not set +# CONFIG_SH_SATURN is not set +# CONFIG_SH_DREAMCAST is not set +# CONFIG_SH_CAT68701 is not set +# CONFIG_SH_BIGSUR is not set +# CONFIG_SH_SH2000 is not set +# CONFIG_SH_ADX is not set +# CONFIG_SH_MPC1211 is not set +# CONFIG_SH_SH03 is not set +# CONFIG_SH_SECUREEDGE5410 is not set +# CONFIG_SH_HS7751RVOIP is not set +# CONFIG_SH_RTS7751R2D is not set +# CONFIG_SH_EDOSK7705 is not set +# CONFIG_SH_SH4202_MICRODEV is not set +CONFIG_SH_LANDISK=y +# CONFIG_SH_TITAN is not set +# CONFIG_SH_UNKNOWN is not set + +# +# Processor selection +# +CONFIG_CPU_SH4=y + +# +# SH-2 Processor Support +# +# CONFIG_CPU_SUBTYPE_SH7604 is not set + +# +# SH-3 Processor Support +# +# CONFIG_CPU_SUBTYPE_SH7300 is not set +# CONFIG_CPU_SUBTYPE_SH7705 is not set +# CONFIG_CPU_SUBTYPE_SH7707 is not set +# CONFIG_CPU_SUBTYPE_SH7708 is not set +# CONFIG_CPU_SUBTYPE_SH7709 is not set + +# +# SH-4 Processor Support +# +# CONFIG_CPU_SUBTYPE_SH7750 is not set +# CONFIG_CPU_SUBTYPE_SH7091 is not set +# CONFIG_CPU_SUBTYPE_SH7750R is not set +# CONFIG_CPU_SUBTYPE_SH7750S is not set +CONFIG_CPU_SUBTYPE_SH7751=y +CONFIG_CPU_SUBTYPE_SH7751R=y +# CONFIG_CPU_SUBTYPE_SH7760 is not set +# CONFIG_CPU_SUBTYPE_SH4_202 is not set + +# +# ST40 Processor Support +# +# CONFIG_CPU_SUBTYPE_ST40STB1 is not set +# CONFIG_CPU_SUBTYPE_ST40GX1 is not set + +# +# SH-4A Processor Support +# +# CONFIG_CPU_SUBTYPE_SH73180 is not set +# CONFIG_CPU_SUBTYPE_SH7770 is not set +# CONFIG_CPU_SUBTYPE_SH7780 is not set + +# +# Memory management options +# +CONFIG_MMU=y +CONFIG_SELECT_MEMORY_MODEL=y +CONFIG_FLATMEM_MANUAL=y +# CONFIG_DISCONTIGMEM_MANUAL is not set +# CONFIG_SPARSEMEM_MANUAL is not set +CONFIG_FLATMEM=y +CONFIG_FLAT_NODE_MEM_MAP=y +# CONFIG_SPARSEMEM_STATIC is not set + +# +# Cache configuration +# +# CONFIG_SH_DIRECT_MAPPED is not set +# CONFIG_SH_WRITETHROUGH is not set +# CONFIG_SH_OCRAM is not set +CONFIG_MEMORY_START=0x0c000000 +CONFIG_MEMORY_SIZE=0x04000000 + +# +# Processor features +# +CONFIG_CPU_LITTLE_ENDIAN=y +CONFIG_SH_FPU=y +# CONFIG_SH_STORE_QUEUES is not set + +# +# Timer support +# +CONFIG_SH_TMU=y +CONFIG_SH_PCLK_FREQ_BOOL=y +CONFIG_SH_PCLK_FREQ=33333333 + +# +# CPU Frequency scaling +# +# CONFIG_CPU_FREQ is not set + +# +# DMA support +# +CONFIG_SH_DMA=y +CONFIG_NR_ONCHIP_DMA_CHANNELS=4 +# CONFIG_NR_DMA_CHANNELS_BOOL is not set + +# +# Companion Chips +# +# CONFIG_HD6446X_SERIES is not set +CONFIG_HEARTBEAT=y + +# +# Kernel features +# +CONFIG_KEXEC=y +# CONFIG_PREEMPT is not set +# CONFIG_SMP is not set + +# +# Boot options +# +CONFIG_ZERO_PAGE_OFFSET=0x00001000 +CONFIG_BOOT_LINK_OFFSET=0x00800000 +# CONFIG_UBC_WAKEUP is not set +# CONFIG_CMDLINE_BOOL is not set + +# +# Bus options +# +CONFIG_ISA=y +CONFIG_PCI=y +CONFIG_SH_PCIDMA_NONCOHERENT=y +CONFIG_PCI_AUTO=y +CONFIG_PCI_AUTO_UPDATE_RESOURCES=y +CONFIG_PCI_LEGACY_PROC=y + +# +# PCCARD (PCMCIA/CardBus) support +# +CONFIG_PCCARD=y +# CONFIG_PCMCIA_DEBUG is not set +CONFIG_PCMCIA=y +CONFIG_PCMCIA_LOAD_CIS=y +CONFIG_PCMCIA_IOCTL=y +CONFIG_CARDBUS=y + +# +# PC-card bridges +# +CONFIG_YENTA=y +# CONFIG_PD6729 is not set +# CONFIG_I82092 is not set +# CONFIG_I82365 is not set +# CONFIG_TCIC is not set +CONFIG_PCMCIA_PROBE=y +CONFIG_PCCARD_NONSTATIC=y + +# +# PCI Hotplug Support +# +# CONFIG_HOTPLUG_PCI is not set + +# +# Executable file formats +# +CONFIG_BINFMT_ELF=y +# CONFIG_BINFMT_FLAT is not set +# CONFIG_BINFMT_MISC is not set + +# +# Networking +# +CONFIG_NET=y + +# +# Networking options +# +CONFIG_PACKET=y +# CONFIG_PACKET_MMAP is not set +CONFIG_UNIX=y +# CONFIG_NET_KEY is not set +CONFIG_INET=y +# CONFIG_IP_MULTICAST is not set +CONFIG_IP_ADVANCED_ROUTER=y +CONFIG_ASK_IP_FIB_HASH=y +# CONFIG_IP_FIB_TRIE is not set +CONFIG_IP_FIB_HASH=y +# CONFIG_IP_MULTIPLE_TABLES is not set +# CONFIG_IP_ROUTE_MULTIPATH is not set +# CONFIG_IP_ROUTE_VERBOSE is not set +CONFIG_IP_PNP=y +# CONFIG_IP_PNP_DHCP is not set +# CONFIG_IP_PNP_BOOTP is not set +# CONFIG_IP_PNP_RARP is not set +# CONFIG_NET_IPIP is not set +# CONFIG_NET_IPGRE is not set +# CONFIG_ARPD 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_INET_DIAG=y +CONFIG_INET_TCP_DIAG=y +# CONFIG_TCP_CONG_ADVANCED is not set +CONFIG_TCP_CONG_BIC=y + +# +# IP: Virtual Server Configuration +# +# CONFIG_IP_VS is not set +# CONFIG_IPV6 is not set +CONFIG_NETFILTER=y +# CONFIG_NETFILTER_DEBUG is not set +# CONFIG_NETFILTER_NETLINK is not set + +# +# IP: Netfilter Configuration +# +CONFIG_IP_NF_CONNTRACK=m +CONFIG_IP_NF_CT_ACCT=y +CONFIG_IP_NF_CONNTRACK_MARK=y +# CONFIG_IP_NF_CONNTRACK_EVENTS is not set +# CONFIG_IP_NF_CT_PROTO_SCTP is not set +CONFIG_IP_NF_FTP=m +CONFIG_IP_NF_IRC=m +# CONFIG_IP_NF_NETBIOS_NS is not set +CONFIG_IP_NF_TFTP=m +CONFIG_IP_NF_AMANDA=m +# CONFIG_IP_NF_PPTP is not set +CONFIG_IP_NF_QUEUE=m +CONFIG_IP_NF_IPTABLES=m +CONFIG_IP_NF_MATCH_LIMIT=m +CONFIG_IP_NF_MATCH_IPRANGE=m +CONFIG_IP_NF_MATCH_MAC=m +CONFIG_IP_NF_MATCH_PKTTYPE=m +CONFIG_IP_NF_MATCH_MARK=m +CONFIG_IP_NF_MATCH_MULTIPORT=m +CONFIG_IP_NF_MATCH_TOS=m +CONFIG_IP_NF_MATCH_RECENT=m +CONFIG_IP_NF_MATCH_ECN=m +CONFIG_IP_NF_MATCH_DSCP=m +CONFIG_IP_NF_MATCH_AH_ESP=m +CONFIG_IP_NF_MATCH_LENGTH=m +CONFIG_IP_NF_MATCH_TTL=m +CONFIG_IP_NF_MATCH_TCPMSS=m +CONFIG_IP_NF_MATCH_HELPER=m +CONFIG_IP_NF_MATCH_STATE=m +CONFIG_IP_NF_MATCH_CONNTRACK=m +CONFIG_IP_NF_MATCH_OWNER=m +CONFIG_IP_NF_MATCH_ADDRTYPE=m +CONFIG_IP_NF_MATCH_REALM=m +CONFIG_IP_NF_MATCH_SCTP=m +# CONFIG_IP_NF_MATCH_DCCP is not set +CONFIG_IP_NF_MATCH_COMMENT=m +CONFIG_IP_NF_MATCH_CONNMARK=m +# CONFIG_IP_NF_MATCH_CONNBYTES is not set +CONFIG_IP_NF_MATCH_HASHLIMIT=m +# CONFIG_IP_NF_MATCH_STRING is not set +CONFIG_IP_NF_FILTER=m +CONFIG_IP_NF_TARGET_REJECT=m +CONFIG_IP_NF_TARGET_LOG=m +CONFIG_IP_NF_TARGET_ULOG=m +CONFIG_IP_NF_TARGET_TCPMSS=m +# CONFIG_IP_NF_TARGET_NFQUEUE is not set +CONFIG_IP_NF_NAT=m +CONFIG_IP_NF_NAT_NEEDED=y +CONFIG_IP_NF_TARGET_MASQUERADE=m +CONFIG_IP_NF_TARGET_REDIRECT=m +CONFIG_IP_NF_TARGET_NETMAP=m +CONFIG_IP_NF_TARGET_SAME=m +# CONFIG_IP_NF_NAT_SNMP_BASIC is not set +CONFIG_IP_NF_NAT_IRC=m +CONFIG_IP_NF_NAT_FTP=m +CONFIG_IP_NF_NAT_TFTP=m +CONFIG_IP_NF_NAT_AMANDA=m +CONFIG_IP_NF_MANGLE=m +CONFIG_IP_NF_TARGET_TOS=m +CONFIG_IP_NF_TARGET_ECN=m +CONFIG_IP_NF_TARGET_DSCP=m +CONFIG_IP_NF_TARGET_MARK=m +CONFIG_IP_NF_TARGET_CLASSIFY=m +# CONFIG_IP_NF_TARGET_TTL is not set +CONFIG_IP_NF_TARGET_CONNMARK=m +# CONFIG_IP_NF_TARGET_CLUSTERIP is not set +CONFIG_IP_NF_RAW=m +CONFIG_IP_NF_TARGET_NOTRACK=m +CONFIG_IP_NF_ARPTABLES=m +CONFIG_IP_NF_ARPFILTER=m +CONFIG_IP_NF_ARP_MANGLE=m + +# +# DCCP Configuration (EXPERIMENTAL) +# +# CONFIG_IP_DCCP is not set + +# +# SCTP Configuration (EXPERIMENTAL) +# +# CONFIG_IP_SCTP is not set +# CONFIG_ATM is not set +# CONFIG_BRIDGE is not set +# CONFIG_VLAN_8021Q is not set +# CONFIG_DECNET is not set +CONFIG_LLC=m +# CONFIG_LLC2 is not set +# CONFIG_IPX is not set +CONFIG_ATALK=m +# CONFIG_DEV_APPLETALK is not set +# CONFIG_X25 is not set +# CONFIG_LAPB is not set +# CONFIG_NET_DIVERT is not set +# CONFIG_ECONET is not set +# CONFIG_WAN_ROUTER is not set +# CONFIG_NET_SCHED is not set +CONFIG_NET_CLS_ROUTE=y + +# +# Network testing +# +# CONFIG_NET_PKTGEN is not set +# CONFIG_HAMRADIO is not set +# CONFIG_IRDA is not set +# CONFIG_BT is not set +# CONFIG_IEEE80211 is not set + +# +# Device Drivers +# + +# +# Generic Driver Options +# +CONFIG_STANDALONE=y +CONFIG_PREVENT_FIRMWARE_BUILD=y +CONFIG_FW_LOADER=y + +# +# Connector - unified userspace <-> kernelspace linker +# +# CONFIG_CONNECTOR is not set + +# +# Memory Technology Devices (MTD) +# +# CONFIG_MTD is not set + +# +# Parallel port support +# +# CONFIG_PARPORT is not set + +# +# Plug and Play support +# +# CONFIG_PNP is not set + +# +# Block devices +# +# 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_UMEM is not set +# CONFIG_BLK_DEV_COW_COMMON is not set +CONFIG_BLK_DEV_LOOP=y +# CONFIG_BLK_DEV_CRYPTOLOOP is not set +# CONFIG_BLK_DEV_NBD is not set +# CONFIG_BLK_DEV_SX8 is not set +# CONFIG_BLK_DEV_UB is not set +CONFIG_BLK_DEV_RAM=y +CONFIG_BLK_DEV_RAM_COUNT=16 +CONFIG_BLK_DEV_RAM_SIZE=4096 +# CONFIG_BLK_DEV_INITRD is not set +# CONFIG_LBD is not set +# CONFIG_CDROM_PKTCDVD is not set + +# +# IO Schedulers +# +CONFIG_IOSCHED_NOOP=y +CONFIG_IOSCHED_AS=y +CONFIG_IOSCHED_DEADLINE=y +CONFIG_IOSCHED_CFQ=y +# CONFIG_ATA_OVER_ETH is not set + +# +# ATA/ATAPI/MFM/RLL support +# +CONFIG_IDE=y +CONFIG_IDE_MAX_HWIFS=4 +CONFIG_BLK_DEV_IDE=y + +# +# Please see Documentation/ide.txt for help/info on IDE drives +# +# CONFIG_BLK_DEV_IDE_SATA is not set +CONFIG_BLK_DEV_IDEDISK=y +# CONFIG_IDEDISK_MULTI_MODE is not set +# CONFIG_BLK_DEV_IDECS is not set +CONFIG_BLK_DEV_IDECD=y +# CONFIG_BLK_DEV_IDETAPE is not set +# CONFIG_BLK_DEV_IDEFLOPPY is not set +CONFIG_BLK_DEV_IDESCSI=y +# CONFIG_IDE_TASK_IOCTL is not set + +# +# IDE chipset support/bugfixes +# +CONFIG_IDE_GENERIC=y +CONFIG_BLK_DEV_IDEPCI=y +CONFIG_IDEPCI_SHARE_IRQ=y +CONFIG_BLK_DEV_OFFBOARD=y +CONFIG_BLK_DEV_GENERIC=y +# CONFIG_BLK_DEV_OPTI621 is not set +CONFIG_BLK_DEV_IDEDMA_PCI=y +# CONFIG_BLK_DEV_IDEDMA_FORCED is not set +CONFIG_IDEDMA_PCI_AUTO=y +CONFIG_IDEDMA_ONLYDISK=y +CONFIG_BLK_DEV_AEC62XX=y +# CONFIG_BLK_DEV_ALI15X3 is not set +# CONFIG_BLK_DEV_AMD74XX is not set +# CONFIG_BLK_DEV_CMD64X is not set +# CONFIG_BLK_DEV_TRIFLEX is not set +# CONFIG_BLK_DEV_CY82C693 is not set +# CONFIG_BLK_DEV_CS5520 is not set +# CONFIG_BLK_DEV_CS5530 is not set +# CONFIG_BLK_DEV_HPT34X is not set +# CONFIG_BLK_DEV_HPT366 is not set +# CONFIG_BLK_DEV_SC1200 is not set +# CONFIG_BLK_DEV_PIIX is not set +# CONFIG_BLK_DEV_IT821X is not set +# CONFIG_BLK_DEV_NS87415 is not set +# CONFIG_BLK_DEV_PDC202XX_OLD is not set +# CONFIG_BLK_DEV_PDC202XX_NEW is not set +# CONFIG_BLK_DEV_SVWKS is not set +# CONFIG_BLK_DEV_SIIMAGE is not set +# CONFIG_BLK_DEV_SLC90E66 is not set +# CONFIG_BLK_DEV_TRM290 is not set +# CONFIG_BLK_DEV_VIA82CXXX is not set +CONFIG_IDE_SH=y +# CONFIG_IDE_ARM is not set +# CONFIG_IDE_CHIPSETS is not set +CONFIG_BLK_DEV_IDEDMA=y +# CONFIG_IDEDMA_IVB is not set +CONFIG_IDEDMA_AUTO=y +# CONFIG_BLK_DEV_HD is not set + +# +# SCSI device support +# +# CONFIG_RAID_ATTRS is not set +CONFIG_SCSI=y +CONFIG_SCSI_PROC_FS=y + +# +# SCSI support type (disk, tape, CD-ROM) +# +CONFIG_BLK_DEV_SD=y +# CONFIG_CHR_DEV_ST is not set +# CONFIG_CHR_DEV_OSST is not set +# CONFIG_BLK_DEV_SR is not set +# CONFIG_CHR_DEV_SG is not set +# CONFIG_CHR_DEV_SCH is not set + +# +# Some SCSI devices (e.g. CD jukebox) support multiple LUNs +# +CONFIG_SCSI_MULTI_LUN=y +# CONFIG_SCSI_CONSTANTS is not set +# CONFIG_SCSI_LOGGING is not set + +# +# SCSI Transport Attributes +# +# CONFIG_SCSI_SPI_ATTRS is not set +# CONFIG_SCSI_FC_ATTRS is not set +# CONFIG_SCSI_ISCSI_ATTRS is not set +# CONFIG_SCSI_SAS_ATTRS is not set + +# +# SCSI low-level drivers +# +# CONFIG_BLK_DEV_3W_XXXX_RAID is not set +# CONFIG_SCSI_3W_9XXX is not set +# CONFIG_SCSI_ACARD is not set +# CONFIG_SCSI_AHA152X is not set +# CONFIG_SCSI_AACRAID is not set +# CONFIG_SCSI_AIC7XXX is not set +# CONFIG_SCSI_AIC7XXX_OLD is not set +# CONFIG_SCSI_AIC79XX is not set +# CONFIG_SCSI_DPT_I2O is not set +# CONFIG_SCSI_IN2000 is not set +# CONFIG_MEGARAID_NEWGEN is not set +# CONFIG_MEGARAID_LEGACY is not set +# CONFIG_MEGARAID_SAS is not set +# CONFIG_SCSI_SATA is not set +# CONFIG_SCSI_DMX3191D is not set +# CONFIG_SCSI_DTC3280 is not set +# CONFIG_SCSI_FUTURE_DOMAIN is not set +# CONFIG_SCSI_GENERIC_NCR5380 is not set +# CONFIG_SCSI_GENERIC_NCR5380_MMIO is not set +# CONFIG_SCSI_IPS is not set +# CONFIG_SCSI_INITIO is not set +# CONFIG_SCSI_INIA100 is not set +# CONFIG_SCSI_NCR53C406A is not set +# CONFIG_SCSI_SYM53C8XX_2 is not set +# CONFIG_SCSI_IPR is not set +# CONFIG_SCSI_PAS16 is not set +# CONFIG_SCSI_PSI240I is not set +# CONFIG_SCSI_QLOGIC_FAS is not set +# CONFIG_SCSI_QLOGIC_FC is not set +# CONFIG_SCSI_QLOGIC_1280 is not set +CONFIG_SCSI_QLA2XXX=y +# CONFIG_SCSI_QLA21XX is not set +# CONFIG_SCSI_QLA22XX is not set +# CONFIG_SCSI_QLA2300 is not set +# CONFIG_SCSI_QLA2322 is not set +# CONFIG_SCSI_QLA6312 is not set +# CONFIG_SCSI_QLA24XX is not set +# CONFIG_SCSI_LPFC is not set +# CONFIG_SCSI_SYM53C416 is not set +# CONFIG_SCSI_DC395x is not set +# CONFIG_SCSI_DC390T is not set +# CONFIG_SCSI_T128 is not set +# CONFIG_SCSI_NSP32 is not set +# CONFIG_SCSI_DEBUG is not set + +# +# PCMCIA SCSI adapter support +# +# CONFIG_PCMCIA_AHA152X is not set +# CONFIG_PCMCIA_FDOMAIN is not set +# CONFIG_PCMCIA_NINJA_SCSI is not set +# CONFIG_PCMCIA_QLOGIC is not set +# CONFIG_PCMCIA_SYM53C500 is not set + +# +# Old CD-ROM drivers (not SCSI, not IDE) +# +# CONFIG_CD_NO_IDESCSI is not set + +# +# Multi-device support (RAID and LVM) +# +CONFIG_MD=y +CONFIG_BLK_DEV_MD=m +CONFIG_MD_LINEAR=m +CONFIG_MD_RAID0=m +CONFIG_MD_RAID1=m +# CONFIG_MD_RAID10 is not set +# CONFIG_MD_RAID5 is not set +# CONFIG_MD_RAID6 is not set +# CONFIG_MD_MULTIPATH is not set +# CONFIG_MD_FAULTY is not set +# CONFIG_BLK_DEV_DM is not set + +# +# Fusion MPT device support +# +# CONFIG_FUSION is not set +# CONFIG_FUSION_SPI is not set +# CONFIG_FUSION_FC is not set +# CONFIG_FUSION_SAS 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=m + +# +# ARCnet devices +# +# CONFIG_ARCNET is not set + +# +# PHY device support +# +# CONFIG_PHYLIB is not set + +# +# Ethernet (10 or 100Mbit) +# +CONFIG_NET_ETHERNET=y +CONFIG_MII=y +# CONFIG_STNIC is not set +# CONFIG_HAPPYMEAL is not set +# CONFIG_SUNGEM is not set +# CONFIG_CASSINI is not set +# CONFIG_NET_VENDOR_3COM is not set +# CONFIG_NET_VENDOR_SMC is not set +# CONFIG_SMC91X is not set +# CONFIG_NET_VENDOR_RACAL is not set + +# +# Tulip family network device support +# +# CONFIG_NET_TULIP is not set +# CONFIG_AT1700 is not set +# CONFIG_DEPCA is not set +# CONFIG_HP100 is not set +# CONFIG_NET_ISA 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_AC3200 is not set +# CONFIG_APRICOT is not set +# CONFIG_B44 is not set +# CONFIG_FORCEDETH is not set +# CONFIG_CS89x0 is not set +# CONFIG_DGRS is not set +# CONFIG_EEPRO100 is not set +# CONFIG_E100 is not set +# CONFIG_FEALNX is not set +# CONFIG_NATSEMI is not set +# CONFIG_NE2K_PCI is not set +CONFIG_8139CP=y +# 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_YELLOWFIN is not set +# CONFIG_R8169 is not set +# CONFIG_SIS190 is not set +# CONFIG_SKGE 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_CHELSIO_T1 is not set +# 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 + +# +# PCMCIA network device support +# +# CONFIG_NET_PCMCIA is not set + +# +# Wan interfaces +# +# CONFIG_WAN is not set +# CONFIG_FDDI is not set +# CONFIG_HIPPI is not set +# CONFIG_PPP is not set +# CONFIG_SLIP is not set +# CONFIG_NET_FC is not set +# CONFIG_SHAPER is not set +# CONFIG_NETCONSOLE is not set +# CONFIG_NETPOLL is not set +# CONFIG_NET_POLL_CONTROLLER is not set + +# +# ISDN subsystem +# +# CONFIG_ISDN is not set + +# +# Telephony Support +# +# CONFIG_PHONE is not set + +# +# Input device support +# +CONFIG_INPUT=y + +# +# Userland interfaces +# +CONFIG_INPUT_MOUSEDEV=y +# CONFIG_INPUT_MOUSEDEV_PSAUX is not set +CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024 +CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768 +# 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=y +CONFIG_VT_CONSOLE=y +CONFIG_HW_CONSOLE=y +# CONFIG_SERIAL_NONSTANDARD is not set + +# +# Serial drivers +# +# CONFIG_SERIAL_8250 is not set + +# +# Non-8250 serial port support +# +CONFIG_SERIAL_SH_SCI=y +CONFIG_SERIAL_SH_SCI_CONSOLE=y +CONFIG_SERIAL_CORE=y +CONFIG_SERIAL_CORE_CONSOLE=y +# CONFIG_SERIAL_JSM is not set +CONFIG_UNIX98_PTYS=y +CONFIG_LEGACY_PTYS=y +CONFIG_LEGACY_PTY_COUNT=256 + +# +# IPMI +# +# CONFIG_IPMI_HANDLER is not set + +# +# Watchdog Cards +# +# CONFIG_WATCHDOG is not set +# CONFIG_RTC is not set +CONFIG_RS5C313_RTC=y +# 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 + +# +# PCMCIA character devices +# +# CONFIG_SYNCLINK_CS is not set +# CONFIG_RAW_DRIVER is not set + +# +# TPM devices +# +# CONFIG_TCG_TPM is not set + +# +# I2C support +# +# CONFIG_I2C is not set + +# +# Dallas's 1-wire bus +# +# CONFIG_W1 is not set + +# +# Hardware Monitoring support +# +CONFIG_HWMON=y +# CONFIG_HWMON_VID is not set +# CONFIG_HWMON_DEBUG_CHIP is not set + +# +# Misc devices +# + +# +# Multimedia Capabilities Port drivers +# + +# +# Multimedia devices +# +CONFIG_VIDEO_DEV=m + +# +# Video For Linux +# + +# +# Video Adapters +# +# CONFIG_VIDEO_PMS is not set +# CONFIG_VIDEO_CPIA is not set +# CONFIG_VIDEO_STRADIS is not set +# CONFIG_VIDEO_MXB is not set +# CONFIG_VIDEO_DPC is not set +# CONFIG_VIDEO_HEXIUM_ORION is not set +# CONFIG_VIDEO_HEXIUM_GEMINI is not set + +# +# Radio Adapters +# +# CONFIG_RADIO_CADET is not set +# CONFIG_RADIO_RTRACK is not set +# CONFIG_RADIO_RTRACK2 is not set +# CONFIG_RADIO_AZTECH is not set +# CONFIG_RADIO_GEMTEK is not set +# CONFIG_RADIO_GEMTEK_PCI is not set +# CONFIG_RADIO_MAXIRADIO is not set +# CONFIG_RADIO_MAESTRO is not set +# CONFIG_RADIO_SF16FMI is not set +# CONFIG_RADIO_SF16FMR2 is not set +# CONFIG_RADIO_TERRATEC is not set +# CONFIG_RADIO_TRUST is not set +# CONFIG_RADIO_TYPHOON is not set +# CONFIG_RADIO_ZOLTRIX is not set + +# +# Digital Video Broadcasting Devices +# +# CONFIG_DVB is not set + +# +# Graphics support +# +# CONFIG_FB is not set + +# +# Console display driver support +# +# CONFIG_MDA_CONSOLE is not set +CONFIG_DUMMY_CONSOLE=y +CONFIG_FONT_8x16=y + +# +# Sound +# +CONFIG_SOUND=m + +# +# Advanced Linux Sound Architecture +# +# CONFIG_SND is not set + +# +# Open Sound System +# +CONFIG_SOUND_PRIME=m +# CONFIG_SOUND_BT878 is not set +# CONFIG_SOUND_CMPCI is not set +# CONFIG_SOUND_EMU10K1 is not set +# CONFIG_SOUND_FUSION is not set +# CONFIG_SOUND_CS4281 is not set +# CONFIG_SOUND_ES1370 is not set +# CONFIG_SOUND_ES1371 is not set +# CONFIG_SOUND_ESSSOLO1 is not set +# CONFIG_SOUND_MAESTRO is not set +# CONFIG_SOUND_MAESTRO3 is not set +# CONFIG_SOUND_ICH is not set +# CONFIG_SOUND_SONICVIBES is not set +# CONFIG_SOUND_TRIDENT is not set +# CONFIG_SOUND_MSNDCLAS is not set +# CONFIG_SOUND_MSNDPIN is not set +# CONFIG_SOUND_VIA82CXXX is not set +# CONFIG_SOUND_ALI5455 is not set +# CONFIG_SOUND_FORTE is not set +# CONFIG_SOUND_RME96XX is not set +# CONFIG_SOUND_AD1980 is not set + +# +# USB support +# +CONFIG_USB_ARCH_HAS_HCD=y +CONFIG_USB_ARCH_HAS_OHCI=y +CONFIG_USB=y +# CONFIG_USB_DEBUG is not set + +# +# Miscellaneous USB options +# +CONFIG_USB_DEVICEFS=y +# CONFIG_USB_BANDWIDTH is not set +# CONFIG_USB_DYNAMIC_MINORS is not set +# CONFIG_USB_OTG is not set + +# +# USB Host Controller Drivers +# +CONFIG_USB_EHCI_HCD=y +# CONFIG_USB_EHCI_SPLIT_ISO is not set +# CONFIG_USB_EHCI_ROOT_HUB_TT is not set +# CONFIG_USB_ISP116X_HCD is not set +CONFIG_USB_OHCI_HCD=y +# CONFIG_USB_OHCI_BIG_ENDIAN is not set +CONFIG_USB_OHCI_LITTLE_ENDIAN=y +# CONFIG_USB_UHCI_HCD is not set +# CONFIG_USB_SL811_HCD is not set + +# +# USB Device Class drivers +# +CONFIG_OBSOLETE_OSS_USB_DRIVER=y +CONFIG_USB_AUDIO=m +# CONFIG_USB_BLUETOOTH_TTY is not set +CONFIG_USB_MIDI=m +# CONFIG_USB_ACM is not set +CONFIG_USB_PRINTER=m + +# +# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support' may also be needed; see USB_STORAGE Help for more information +# +CONFIG_USB_STORAGE=m +# CONFIG_USB_STORAGE_DEBUG is not set +CONFIG_USB_STORAGE_DATAFAB=y +CONFIG_USB_STORAGE_FREECOM=y +CONFIG_USB_STORAGE_ISD200=y +CONFIG_USB_STORAGE_DPCM=y +# CONFIG_USB_STORAGE_USBAT is not set +CONFIG_USB_STORAGE_SDDR09=y +CONFIG_USB_STORAGE_SDDR55=y +CONFIG_USB_STORAGE_JUMPSHOT=y + +# +# USB Input Devices +# +CONFIG_USB_HID=m +CONFIG_USB_HIDINPUT=y +# CONFIG_HID_FF is not set +# CONFIG_USB_HIDDEV is not set + +# +# USB HID Boot Protocol drivers +# +# CONFIG_USB_KBD is not set +# CONFIG_USB_MOUSE is not set +# CONFIG_USB_AIPTEK is not set +# CONFIG_USB_WACOM is not set +# CONFIG_USB_ACECAD is not set +# CONFIG_USB_KBTAB is not set +# CONFIG_USB_POWERMATE is not set +# CONFIG_USB_MTOUCH is not set +# CONFIG_USB_ITMTOUCH is not set +# CONFIG_USB_EGALAX is not set +# CONFIG_USB_YEALINK is not set +# CONFIG_USB_XPAD is not set +# CONFIG_USB_ATI_REMOTE is not set +# CONFIG_USB_KEYSPAN_REMOTE is not set +# CONFIG_USB_APPLETOUCH is not set + +# +# USB Imaging devices +# +# CONFIG_USB_MDC800 is not set +# CONFIG_USB_MICROTEK is not set + +# +# USB Multimedia devices +# +CONFIG_USB_DABUSB=m +CONFIG_USB_VICAM=m +CONFIG_USB_DSBR=m +CONFIG_USB_IBMCAM=m +CONFIG_USB_KONICAWC=m +CONFIG_USB_OV511=m +CONFIG_USB_SE401=m +CONFIG_USB_SN9C102=m +CONFIG_USB_STV680=m +CONFIG_USB_PWC=m + +# +# USB Network Adapters +# +# CONFIG_USB_CATC is not set +# CONFIG_USB_KAWETH is not set +CONFIG_USB_PEGASUS=m +CONFIG_USB_RTL8150=m +# CONFIG_USB_USBNET is not set +CONFIG_USB_MON=y + +# +# USB port drivers +# + +# +# USB Serial Converter support +# +CONFIG_USB_SERIAL=m +# CONFIG_USB_SERIAL_GENERIC is not set +# CONFIG_USB_SERIAL_AIRPRIME is not set +# CONFIG_USB_SERIAL_BELKIN is not set +# CONFIG_USB_SERIAL_WHITEHEAT is not set +# CONFIG_USB_SERIAL_DIGI_ACCELEPORT is not set +# CONFIG_USB_SERIAL_CP2101 is not set +# CONFIG_USB_SERIAL_CYPRESS_M8 is not set +# CONFIG_USB_SERIAL_EMPEG is not set +CONFIG_USB_SERIAL_FTDI_SIO=m +# CONFIG_USB_SERIAL_VISOR is not set +# CONFIG_USB_SERIAL_IPAQ is not set +# CONFIG_USB_SERIAL_IR is not set +# CONFIG_USB_SERIAL_EDGEPORT is not set +# CONFIG_USB_SERIAL_EDGEPORT_TI is not set +# CONFIG_USB_SERIAL_GARMIN is not set +# CONFIG_USB_SERIAL_IPW is not set +# CONFIG_USB_SERIAL_KEYSPAN_PDA is not set +# CONFIG_USB_SERIAL_KEYSPAN is not set +# CONFIG_USB_SERIAL_KLSI is not set +# CONFIG_USB_SERIAL_KOBIL_SCT is not set +# CONFIG_USB_SERIAL_MCT_U232 is not set +CONFIG_USB_SERIAL_PL2303=m +# CONFIG_USB_SERIAL_HP4X is not set +# CONFIG_USB_SERIAL_SAFE is not set +# CONFIG_USB_SERIAL_TI is not set +# CONFIG_USB_SERIAL_CYBERJACK is not set +# CONFIG_USB_SERIAL_XIRCOM is not set +# CONFIG_USB_SERIAL_OPTION is not set +# CONFIG_USB_SERIAL_OMNINET is not set + +# +# USB Miscellaneous drivers +# +CONFIG_USB_EMI62=m +CONFIG_USB_EMI26=m +# CONFIG_USB_AUERSWALD is not set +# CONFIG_USB_RIO500 is not set +# CONFIG_USB_LEGOTOWER is not set +# CONFIG_USB_LCD is not set +# CONFIG_USB_LED is not set +# CONFIG_USB_CYTHERM is not set +# CONFIG_USB_PHIDGETKIT is not set +# CONFIG_USB_PHIDGETSERVO is not set +# CONFIG_USB_IDMOUSE is not set +CONFIG_USB_SISUSBVGA=m +CONFIG_USB_SISUSBVGA_CON=y +# CONFIG_USB_LD is not set +# CONFIG_USB_TEST is not set + +# +# USB DSL modem support +# + +# +# USB Gadget Support +# +# CONFIG_USB_GADGET is not set + +# +# MMC/SD Card support +# +# CONFIG_MMC is not set + +# +# InfiniBand support +# +# CONFIG_INFINIBAND is not set + +# +# SN Devices +# + +# +# File systems +# +CONFIG_EXT2_FS=y +# CONFIG_EXT2_FS_XATTR is not set +# CONFIG_EXT2_FS_XIP is not set +CONFIG_EXT3_FS=y +CONFIG_EXT3_FS_XATTR=y +# CONFIG_EXT3_FS_POSIX_ACL is not set +# CONFIG_EXT3_FS_SECURITY is not set +CONFIG_JBD=y +# CONFIG_JBD_DEBUG is not set +CONFIG_FS_MBCACHE=y +CONFIG_REISERFS_FS=y +# CONFIG_REISERFS_CHECK is not set +# CONFIG_REISERFS_PROC_INFO is not set +# CONFIG_REISERFS_FS_XATTR is not set +# CONFIG_JFS_FS is not set +# CONFIG_FS_POSIX_ACL is not set +# CONFIG_XFS_FS is not set +# CONFIG_MINIX_FS is not set +CONFIG_ROMFS_FS=y +CONFIG_INOTIFY=y +# CONFIG_QUOTA is not set +CONFIG_DNOTIFY=y +# CONFIG_AUTOFS_FS is not set +# CONFIG_AUTOFS4_FS is not set +# CONFIG_FUSE_FS is not set + +# +# CD-ROM/DVD Filesystems +# +CONFIG_ISO9660_FS=m +# CONFIG_JOLIET is not set +# CONFIG_ZISOFS is not set +# CONFIG_UDF_FS is not set + +# +# DOS/FAT/NT Filesystems +# +CONFIG_FAT_FS=y +CONFIG_MSDOS_FS=y +CONFIG_VFAT_FS=y +CONFIG_FAT_DEFAULT_CODEPAGE=437 +CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1" +CONFIG_NTFS_FS=m +# CONFIG_NTFS_DEBUG is not set +CONFIG_NTFS_RW=y + +# +# Pseudo filesystems +# +CONFIG_PROC_FS=y +# CONFIG_PROC_KCORE is not set +CONFIG_SYSFS=y +CONFIG_TMPFS=y +# CONFIG_HUGETLBFS is not set +# CONFIG_HUGETLB_PAGE is not set +CONFIG_RAMFS=y +# CONFIG_RELAYFS_FS is not set + +# +# Miscellaneous filesystems +# +# CONFIG_ADFS_FS is not set +# CONFIG_AFFS_FS is not set +# CONFIG_HFS_FS is not set +# CONFIG_HFSPLUS_FS is not set +# CONFIG_BEFS_FS is not set +# CONFIG_BFS_FS is not set +# CONFIG_EFS_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=m +CONFIG_UFS_FS_WRITE=y + +# +# Network File Systems +# +CONFIG_NFS_FS=m +CONFIG_NFS_V3=y +# CONFIG_NFS_V3_ACL is not set +# CONFIG_NFS_V4 is not set +# CONFIG_NFS_DIRECTIO is not set +CONFIG_NFSD=m +CONFIG_NFSD_V3=y +# CONFIG_NFSD_V3_ACL is not set +# CONFIG_NFSD_V4 is not set +CONFIG_NFSD_TCP=y +CONFIG_LOCKD=m +CONFIG_LOCKD_V4=y +CONFIG_EXPORTFS=m +CONFIG_NFS_COMMON=y +CONFIG_SUNRPC=m +# CONFIG_RPCSEC_GSS_KRB5 is not set +# CONFIG_RPCSEC_GSS_SPKM3 is not set +CONFIG_SMB_FS=m +# CONFIG_SMB_NLS_DEFAULT is not set +# CONFIG_CIFS is not set +# CONFIG_NCP_FS is not set +# CONFIG_CODA_FS is not set +# CONFIG_AFS_FS is not set +# CONFIG_9P_FS is not set + +# +# Partition Types +# +# CONFIG_PARTITION_ADVANCED is not set +CONFIG_MSDOS_PARTITION=y + +# +# Native Language Support +# +CONFIG_NLS=y +CONFIG_NLS_DEFAULT="iso8859-1" +CONFIG_NLS_CODEPAGE_437=y +# CONFIG_NLS_CODEPAGE_737 is not set +# CONFIG_NLS_CODEPAGE_775 is not set +# CONFIG_NLS_CODEPAGE_850 is not set +# CONFIG_NLS_CODEPAGE_852 is not set +# CONFIG_NLS_CODEPAGE_855 is not set +# CONFIG_NLS_CODEPAGE_857 is not set +# CONFIG_NLS_CODEPAGE_860 is not set +# CONFIG_NLS_CODEPAGE_861 is not set +# CONFIG_NLS_CODEPAGE_862 is not set +# CONFIG_NLS_CODEPAGE_863 is not set +# CONFIG_NLS_CODEPAGE_864 is not set +# CONFIG_NLS_CODEPAGE_865 is not set +# CONFIG_NLS_CODEPAGE_866 is not set +# CONFIG_NLS_CODEPAGE_869 is not set +# CONFIG_NLS_CODEPAGE_936 is not set +# CONFIG_NLS_CODEPAGE_950 is not set +CONFIG_NLS_CODEPAGE_932=y +# CONFIG_NLS_CODEPAGE_949 is not set +# CONFIG_NLS_CODEPAGE_874 is not set +# CONFIG_NLS_ISO8859_8 is not set +# CONFIG_NLS_CODEPAGE_1250 is not set +# CONFIG_NLS_CODEPAGE_1251 is not set +# CONFIG_NLS_ASCII is not set +# CONFIG_NLS_ISO8859_1 is not set +# CONFIG_NLS_ISO8859_2 is not set +# CONFIG_NLS_ISO8859_3 is not set +# CONFIG_NLS_ISO8859_4 is not set +# CONFIG_NLS_ISO8859_5 is not set +# CONFIG_NLS_ISO8859_6 is not set +# CONFIG_NLS_ISO8859_7 is not set +# CONFIG_NLS_ISO8859_9 is not set +# CONFIG_NLS_ISO8859_13 is not set +# CONFIG_NLS_ISO8859_14 is not set +# CONFIG_NLS_ISO8859_15 is not set +# CONFIG_NLS_KOI8_R is not set +# CONFIG_NLS_KOI8_U is not set +# CONFIG_NLS_UTF8 is not set + +# +# Profiling support +# +# CONFIG_PROFILING is not set + +# +# Kernel hacking +# +# CONFIG_PRINTK_TIME is not set +# CONFIG_DEBUG_KERNEL is not set +CONFIG_LOG_BUF_SHIFT=14 +# CONFIG_FRAME_POINTER is not set +CONFIG_SH_STANDARD_BIOS=y +# CONFIG_EARLY_SCIF_CONSOLE is not set +# CONFIG_EARLY_PRINTK is not set +# CONFIG_KGDB 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_CRC16 is not set +CONFIG_CRC32=y +# CONFIG_LIBCRC32C is not set diff --git a/arch/sh/tools/mach-types b/arch/sh/tools/mach-types index 182fe9092577..c503ca072e11 100644 --- a/arch/sh/tools/mach-types +++ b/arch/sh/tools/mach-types @@ -25,4 +25,4 @@ RTS7751R2D SH_RTS7751R2D EDOSK7705 SH_EDOSK7705 SH4202_MICRODEV SH_SH4202_MICRODEV SH03 SH_SH03 - +LANDISK SH_LANDISK diff --git a/include/asm-sh/landisk/gio.h b/include/asm-sh/landisk/gio.h new file mode 100644 index 000000000000..3fce4c451a46 --- /dev/null +++ b/include/asm-sh/landisk/gio.h @@ -0,0 +1,45 @@ +#ifndef __ASM_SH_LANDISK_GIO_H +#define __ASM_SH_LANDISK_GIO_H + +#include + +/* version */ +#define VERSION_STR "1.00" + +/* Driver name */ +#define GIO_DRIVER_NAME "/dev/giodrv" + +/* Use 'k' as magic number */ +#define GIODRV_IOC_MAGIC 'k' + +#define GIODRV_IOCRESET _IO(GIODRV_IOC_MAGIC, 0) +/* + * S means "Set" through a ptr, + * T means "Tell" directly + * G means "Get" (to a pointed var) + * Q means "Query", response is on the return value + * X means "eXchange": G and S atomically + * H means "sHift": T and Q atomically + */ +#define GIODRV_IOCSGIODATA1 _IOW(GIODRV_IOC_MAGIC, 1, unsigned char *) +#define GIODRV_IOCGGIODATA1 _IOR(GIODRV_IOC_MAGIC, 2, unsigned char *) +#define GIODRV_IOCSGIODATA2 _IOW(GIODRV_IOC_MAGIC, 3, unsigned short *) +#define GIODRV_IOCGGIODATA2 _IOR(GIODRV_IOC_MAGIC, 4, unsigned short *) +#define GIODRV_IOCSGIODATA4 _IOW(GIODRV_IOC_MAGIC, 5, unsigned long *) +#define GIODRV_IOCGGIODATA4 _IOR(GIODRV_IOC_MAGIC, 6, unsigned long *) +#define GIODRV_IOCSGIOSETADDR _IOW(GIODRV_IOC_MAGIC, 7, unsigned long *) +#define GIODRV_IOCHARDRESET _IO(GIODRV_IOC_MAGIC, 8) /* debugging tool */ + +#define GIODRV_IOCSGIO_LED _IOW(GIODRV_IOC_MAGIC, 9, unsigned long *) +#define GIODRV_IOCGGIO_LED _IOR(GIODRV_IOC_MAGIC, 10, unsigned long *) +#define GIODRV_IOCSGIO_BUZZER _IOW(GIODRV_IOC_MAGIC, 11, unsigned long *) +#define GIODRV_IOCGGIO_LANDISK _IOR(GIODRV_IOC_MAGIC, 14, unsigned long *) +#define GIODRV_IOCGGIO_BTN _IOR(GIODRV_IOC_MAGIC, 22, unsigned long *) +#define GIODRV_IOCSGIO_BTNPID _IOW(GIODRV_IOC_MAGIC, 23, unsigned long *) +#define GIODRV_IOCGGIO_BTNPID _IOR(GIODRV_IOC_MAGIC, 24, unsigned long *) + +#define GIODRV_IOC_MAXNR 8 +#define GIO_READ 0x00000000 +#define GIO_WRITE 0x00000001 + +#endif /* __ASM_SH_LANDISK_GIO_H */ diff --git a/include/asm-sh/landisk/ide.h b/include/asm-sh/landisk/ide.h new file mode 100644 index 000000000000..6490e28415ed --- /dev/null +++ b/include/asm-sh/landisk/ide.h @@ -0,0 +1,14 @@ +/* + * modifed by kogiidena + * 2005.03.03 + */ + +#ifndef __ASM_SH_LANDISK_IDE_H +#define __ASM_SH_LANDISK_IDE_H + +/* Nothing to see here.. */ +#include +#define IRQ_CFCARD IRQ_FATA /* CF Card IRQ */ +#define IRQ_PCMCIA IRQ_ATA /* PCMCIA IRQ */ + +#endif /* __ASM_SH_LANDISK_IDE_H */ diff --git a/include/asm-sh/landisk/iodata_landisk.h b/include/asm-sh/landisk/iodata_landisk.h new file mode 100644 index 000000000000..7189d3a36384 --- /dev/null +++ b/include/asm-sh/landisk/iodata_landisk.h @@ -0,0 +1,78 @@ +#ifndef __ASM_SH_IODATA_LANDISK_H +#define __ASM_SH_IODATA_LANDISK_H + +/* + * linux/include/asm-sh/landisk/iodata_landisk.h + * + * Copyright (C) 2000 Atom Create Engineering Co., Ltd. + * + * IO-DATA LANDISK support + */ + +/* Box specific addresses. */ + +#define PA_USB 0xa4000000 /* USB Controller M66590 */ + +#define PA_ATARST 0xb0000000 /* ATA/FATA Access Control Register */ +#define PA_LED 0xb0000001 /* LED Control Register */ +#define PA_STATUS 0xb0000002 /* Switch Status Register */ +#define PA_SHUTDOWN 0xb0000003 /* Shutdown Control Register */ +#define PA_PCIPME 0xb0000004 /* PCI PME Status Register */ +#define PA_IMASK 0xb0000005 /* Interrupt Mask Register */ +/* 2003.10.31 I-O DATA NSD NWG add. for shutdown port clear */ +#define PA_PWRINT_CLR 0xb0000006 /* Shutdown Interrupt clear Register */ + +#define PA_AREA5_IO 0xb4000000 /* Area 5 IO Memory */ +#define PA_AREA6_IO 0xb8000000 /* Area 6 IO Memory */ +#define PA_LCD_CLRDSP 0x00 /* LCD Clear Display Offset */ +#define PA_LCD_RTNHOME 0x00 /* LCD Return Home Offset */ +#define PA_LCD_ENTMODE 0x00 /* LCD Entry Mode Offset */ +#define PA_LCD_DSPCTL 0x00 /* LCD Display ON/OFF Control Offset */ +#define PA_LCD_FUNC 0x00 /* LCD Function Set Offset */ +#define PA_LCD_CGRAM 0x00 /* LCD Set CGRAM Address Offset */ +#define PA_LCD_DDRAM 0x00 /* LCD Set DDRAM Address Offset */ +#define PA_LCD_RDFLAG 0x01 /* LCD Read Busy Flag Offset */ +#define PA_LCD_WTDATA 0x02 /* LCD Write Datat to RAM Offset */ +#define PA_LCD_RDDATA 0x03 /* LCD Read Data from RAM Offset */ +#define PA_PIDE_OFFSET 0x40 /* CF IDE Offset */ +#define PA_SIDE_OFFSET 0x40 /* HDD IDE Offset */ + +#define IRQ_PCIINTA 5 /* PCI INTA IRQ */ +#define IRQ_PCIINTB 6 /* PCI INTB IRQ */ +#define IRQ_PCIINDC 7 /* PCI INTC IRQ */ +#define IRQ_PCIINTD 8 /* PCI INTD IRQ */ +#define IRQ_ATA 9 /* ATA IRQ */ +#define IRQ_FATA 10 /* FATA IRQ */ +#define IRQ_POWER 11 /* Power Switch IRQ */ +#define IRQ_BUTTON 12 /* USL-5P Button IRQ */ +#define IRQ_FAULT 13 /* USL-5P Fault IRQ */ + +#define SHUTDOWN_BTN_MAJOR 99 /* Shutdown button device major no. */ + +#define SHUTDOWN_LOOP_CNT 5 /* Shutdown button Detection loop */ +#define SHUTDOWN_DELAY 200 /* Shutdown button delay value(ms) */ + + +/* added by kogiidena */ +/* + * landisk_ledparam + * + * led ------10 -6543210 -6543210 -6543210 + * |000000..|0.......|0.......|U.......| + * | HARD |fastblik| blink | on | + * + * led0: power U:update flag + * led1: error + * led2: usb1 + * led3: usb2 + * led4: usb3 + * led5: usb4 + * led6: usb5 + * + */ +extern int landisk_ledparam; /* from setup.c */ +extern int landisk_buzzerparam; /* from setup.c */ +extern int landisk_arch; /* from setup.c */ + +#endif /* __ASM_SH_IODATA_LANDISK_H */ + -- cgit v1.2.3 From 298476220d1f793ca0ac6c9e5dc817e1ad3e9851 Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Wed, 27 Sep 2006 14:57:44 +0900 Subject: sh: Add control register barriers. Currently when making changes to control registers, we typically need some time for changes to take effect (8 nops, generally). However, for sh4a we simply need to do an icbi.. This is a simple patch for implementing a general purpose ctrl_barrier() which functions as a control register write barrier. There's some additional documentation in the patch itself, but it's pretty self explanatory. There were also some places where we were not doing the barrier, which didn't seem to have any adverse effects on legacy parts, but certainly did on sh4a. It's safer to have the barrier in place for legacy parts as well in these cases, though this does make flush_tlb_all() more expensive (by an order of 8 nops). We can ifdef around the flush_tlb_all() case for now if it's clear that all legacy parts won't have a problem with this. Signed-off-by: Paul Mundt --- arch/sh/mm/cache-sh4.c | 5 +++++ arch/sh/mm/fault.c | 5 +++-- include/asm-sh/mmu_context.h | 7 +++---- include/asm-sh/system.h | 43 ++++++++++++++++++++++++++++++++++--------- 4 files changed, 45 insertions(+), 15 deletions(-) (limited to 'include') diff --git a/arch/sh/mm/cache-sh4.c b/arch/sh/mm/cache-sh4.c index c036c2b4ac2b..2203bd6aadb3 100644 --- a/arch/sh/mm/cache-sh4.c +++ b/arch/sh/mm/cache-sh4.c @@ -269,6 +269,11 @@ static inline void flush_icache_all(void) ccr |= CCR_CACHE_ICI; ctrl_outl(ccr, CCR); + /* + * back_to_P1() will take care of the barrier for us, don't add + * another one! + */ + back_to_P1(); local_irq_restore(flags); } diff --git a/arch/sh/mm/fault.c b/arch/sh/mm/fault.c index 775f86cd3fe8..364181f27b79 100644 --- a/arch/sh/mm/fault.c +++ b/arch/sh/mm/fault.c @@ -369,12 +369,13 @@ void flush_tlb_all(void) * Flush all the TLB. * * Write to the MMU control register's bit: - * TF-bit for SH-3, TI-bit for SH-4. + * TF-bit for SH-3, TI-bit for SH-4. * It's same position, bit #2. */ local_irq_save(flags); status = ctrl_inl(MMUCR); - status |= 0x04; + status |= 0x04; ctrl_outl(status, MMUCR); + ctrl_barrier(); local_irq_restore(flags); } diff --git a/include/asm-sh/mmu_context.h b/include/asm-sh/mmu_context.h index 6760d064bd02..87678ba8d6b6 100644 --- a/include/asm-sh/mmu_context.h +++ b/include/asm-sh/mmu_context.h @@ -174,9 +174,7 @@ static inline void enable_mmu(void) { /* Enable MMU */ ctrl_outl(MMU_CONTROL_INIT, MMUCR); - - /* The manual suggests doing some nops after turning on the MMU */ - __asm__ __volatile__ ("nop;nop;nop;nop;nop;nop;nop;nop\n\t"); + ctrl_barrier(); if (mmu_context_cache == NO_CONTEXT) mmu_context_cache = MMU_CONTEXT_FIRST_VERSION; @@ -191,7 +189,8 @@ static inline void disable_mmu(void) cr = ctrl_inl(MMUCR); cr &= ~MMU_CONTROL_INIT; ctrl_outl(cr, MMUCR); - __asm__ __volatile__ ("nop;nop;nop;nop;nop;nop;nop;nop\n\t"); + + ctrl_barrier(); } #else /* diff --git a/include/asm-sh/system.h b/include/asm-sh/system.h index eb4902ed920a..1630a5411e5f 100644 --- a/include/asm-sh/system.h +++ b/include/asm-sh/system.h @@ -67,8 +67,17 @@ static inline void sched_cacheflush(void) { } -#define nop() __asm__ __volatile__ ("nop") - +#ifdef CONFIG_CPU_SH4A +#define __icbi() \ +{ \ + unsigned long __addr; \ + __addr = 0xa8000000; \ + __asm__ __volatile__( \ + "icbi %0\n\t" \ + : /* no output */ \ + : "m" (__m(__addr))); \ +} +#endif #define xchg(ptr,x) ((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr)))) @@ -84,15 +93,31 @@ static __inline__ unsigned long tas(volatile int *m) extern void __xchg_called_with_bad_pointer(void); +/* + * A brief note on ctrl_barrier(), the control register write barrier. + * + * Legacy SH cores typically require a sequence of 8 nops after + * modification of a control register in order for the changes to take + * effect. On newer cores (like the sh4a and sh5) this is accomplished + * with icbi. + * + * Also note that on sh4a in the icbi case we can forego a synco for the + * write barrier, as it's not necessary for control registers. + * + * Historically we have only done this type of barrier for the MMUCR, but + * it's also necessary for the CCR, so we make it generic here instead. + */ #ifdef CONFIG_CPU_SH4A -#define mb() __asm__ __volatile__ ("synco": : :"memory") -#define rmb() mb() -#define wmb() __asm__ __volatile__ ("synco": : :"memory") +#define mb() __asm__ __volatile__ ("synco": : :"memory") +#define rmb() mb() +#define wmb() __asm__ __volatile__ ("synco": : :"memory") +#define ctrl_barrier() __icbi() #define read_barrier_depends() do { } while(0) #else -#define mb() __asm__ __volatile__ ("": : :"memory") -#define rmb() mb() -#define wmb() __asm__ __volatile__ ("": : :"memory") +#define mb() __asm__ __volatile__ ("": : :"memory") +#define rmb() mb() +#define wmb() __asm__ __volatile__ ("": : :"memory") +#define ctrl_barrier() __asm__ __volatile__ ("nop;nop;nop;nop;nop;nop;nop;nop") #define read_barrier_depends() do { } while(0) #endif @@ -218,8 +243,8 @@ do { \ #define back_to_P1() \ do { \ unsigned long __dummy; \ + ctrl_barrier(); \ __asm__ __volatile__( \ - "nop;nop;nop;nop;nop;nop;nop\n\t" \ "mov.l 1f, %0\n\t" \ "jmp @%0\n\t" \ " nop\n\t" \ -- cgit v1.2.3 From a09749dd86e9e93de10f12ab4ce4e90815b5650a Mon Sep 17 00:00:00 2001 From: Jamie Lenehan Date: Wed, 27 Sep 2006 15:05:39 +0900 Subject: sh: Titan board support. Add support for the titan board. Signed-off-by: Jamie Lenehan Signed-off-by: Paul Mundt --- arch/sh/Makefile | 1 + arch/sh/boards/titan/Makefile | 5 + arch/sh/boards/titan/io.c | 156 +++++ arch/sh/boards/titan/setup.c | 60 ++ arch/sh/configs/titan_defconfig | 1367 +++++++++++++++++++++++++++++++++++++++ arch/sh/drivers/pci/Makefile | 1 + arch/sh/drivers/pci/ops-titan.c | 84 +++ arch/sh/drivers/pci/pci.c | 58 +- arch/sh/tools/mach-types | 1 + include/asm-sh/titan.h | 43 ++ 10 files changed, 1764 insertions(+), 12 deletions(-) create mode 100644 arch/sh/boards/titan/Makefile create mode 100644 arch/sh/boards/titan/io.c create mode 100644 arch/sh/boards/titan/setup.c create mode 100644 arch/sh/configs/titan_defconfig create mode 100644 arch/sh/drivers/pci/ops-titan.c create mode 100644 include/asm-sh/titan.h (limited to 'include') diff --git a/arch/sh/Makefile b/arch/sh/Makefile index e9112def48dd..55dcba2c06fc 100644 --- a/arch/sh/Makefile +++ b/arch/sh/Makefile @@ -106,6 +106,7 @@ machdir-$(CONFIG_SH_7751_SYSTEMH) := renesas/systemh machdir-$(CONFIG_SH_EDOSK7705) := renesas/edosk7705 machdir-$(CONFIG_SH_SH4202_MICRODEV) := superh/microdev machdir-$(CONFIG_SH_LANDISK) := landisk +machdir-$(CONFIG_SH_TITAN) := titan machdir-$(CONFIG_SH_UNKNOWN) := unknown incdir-y := $(notdir $(machdir-y)) diff --git a/arch/sh/boards/titan/Makefile b/arch/sh/boards/titan/Makefile new file mode 100644 index 000000000000..08d753700062 --- /dev/null +++ b/arch/sh/boards/titan/Makefile @@ -0,0 +1,5 @@ +# +# Makefile for the Nimble Microsystems TITAN specific parts of the kernel +# + +obj-y := setup.o io.o diff --git a/arch/sh/boards/titan/io.c b/arch/sh/boards/titan/io.c new file mode 100644 index 000000000000..d66900c99a11 --- /dev/null +++ b/arch/sh/boards/titan/io.c @@ -0,0 +1,156 @@ +/* + * I/O routines for Titan + */ + +#include +#include +#include +#include +#include +#include "../../drivers/pci/pci-sh7751.h" + +#define PCIIOBR (volatile long *)PCI_REG(SH7751_PCIIOBR) +#define PCIMBR (volatile long *)PCI_REG(SH7751_PCIMBR) +#define PCI_IO_AREA SH7751_PCI_IO_BASE +#define PCI_MEM_AREA SH7751_PCI_CONFIG_BASE + +#define PCI_IOMAP(adr) (PCI_IO_AREA + (adr & ~SH7751_PCIIOBR_MASK)) + +#if defined(CONFIG_PCI) +#define CHECK_SH7751_PCIIO(port) \ + ((port >= PCIBIOS_MIN_IO) && (port < (PCIBIOS_MIN_IO + SH7751_PCI_IO_SIZE))) +#define CHECK_SH7751_PCIMEMIO(port) \ + ((port >= PCIBIOS_MIN_MEM) && (port < (PCIBIOS_MIN_MEM + SH7751_PCI_MEM_SIZE))) +#else +#define CHECK_SH7751_PCIIO(port) (0) +#endif + +static inline void delay(void) +{ + ctrl_inw(0xa0000000); +} + +static inline volatile u16 *port2adr(unsigned int port) +{ + maybebadio((unsigned long)port); + return (volatile u16*)port; +} + +u8 titan_inb(unsigned long port) +{ + if (PXSEG(port)) + return ctrl_inb(port); + else if (CHECK_SH7751_PCIIO(port)) + return ctrl_inb(PCI_IOMAP(port)); + return ctrl_inw(port2adr(port)) & 0xff; +} + +u8 titan_inb_p(unsigned long port) +{ + u8 v; + + if (PXSEG(port)) + v = ctrl_inb(port); + else if (CHECK_SH7751_PCIIO(port)) + v = ctrl_inb(PCI_IOMAP(port)); + else + v = ctrl_inw(port2adr(port)) & 0xff; + delay(); + return v; +} + +u16 titan_inw(unsigned long port) +{ + if (PXSEG(port)) + return ctrl_inw(port); + else if (CHECK_SH7751_PCIIO(port)) + return ctrl_inw(PCI_IOMAP(port)); + else if (port >= 0x2000) + return ctrl_inw(port2adr(port)); + else + maybebadio(port); + return 0; +} + +u32 titan_inl(unsigned long port) +{ + if (PXSEG(port)) + return ctrl_inl(port); + else if (CHECK_SH7751_PCIIO(port)) + return ctrl_inl(PCI_IOMAP(port)); + else if (port >= 0x2000) + return ctrl_inw(port2adr(port)); + else + maybebadio(port); + return 0; +} + +void titan_outb(u8 value, unsigned long port) +{ + if (PXSEG(port)) + ctrl_outb(value, port); + else if (CHECK_SH7751_PCIIO(port)) + ctrl_outb(value, PCI_IOMAP(port)); + else + ctrl_outw(value, port2adr(port)); +} + +void titan_outb_p(u8 value, unsigned long port) +{ + if (PXSEG(port)) + ctrl_outb(value, port); + else if (CHECK_SH7751_PCIIO(port)) + ctrl_outb(value, PCI_IOMAP(port)); + else + ctrl_outw(value, port2adr(port)); + delay(); +} + +void titan_outw(u16 value, unsigned long port) +{ + if (PXSEG(port)) + ctrl_outw(value, port); + else if (CHECK_SH7751_PCIIO(port)) + ctrl_outw(value, PCI_IOMAP(port)); + else if (port >= 0x2000) + ctrl_outw(value, port2adr(port)); + else + maybebadio(port); +} + +void titan_outl(u32 value, unsigned long port) +{ + if (PXSEG(port)) + ctrl_outl(value, port); + else if (CHECK_SH7751_PCIIO(port)) + ctrl_outl(value, PCI_IOMAP(port)); + else + maybebadio(port); +} + +void titan_insl(unsigned long port, void *dst, unsigned long count) +{ + maybebadio(port); +} + +void titan_outsl(unsigned long port, const void *src, unsigned long count) +{ + maybebadio(port); +} + +void *titan_ioremap(unsigned long offset, unsigned long size) { + if (CHECK_SH7751_PCIIO(offset) || CHECK_SH7751_PCIMEMIO(offset)) + return (void *)offset; +} + +void __iomem *titan_ioport_map(unsigned long port, unsigned int size) +{ + if (PXSEG(port)) + return (void __iomem *)port; + else if (CHECK_SH7751_PCIIO(port)) + return (void __iomem *)PCI_IOMAP(port); + + return (void __iomem *)port2adr(port); +} + +EXPORT_SYMBOL(titan_ioremap); diff --git a/arch/sh/boards/titan/setup.c b/arch/sh/boards/titan/setup.c new file mode 100644 index 000000000000..6ac5c8d7b3fb --- /dev/null +++ b/arch/sh/boards/titan/setup.c @@ -0,0 +1,60 @@ +/* + * Setup for Titan + */ + +#include +#include +#include +#include + +extern void __init pcibios_init_platform(void); + +static void __init init_titan_irq(void) +{ + /* enable individual interrupt mode for externals */ + ctrl_outw(ctrl_inw(INTC_ICR) | INTC_ICR_IRLM, INTC_ICR); + + make_ipr_irq( TITAN_IRQ_WAN, IRL0_IPR_ADDR, IRL0_IPR_POS, IRL0_PRIORITY); /* PCIRQ0 */ + make_ipr_irq( TITAN_IRQ_LAN, IRL1_IPR_ADDR, IRL1_IPR_POS, IRL1_PRIORITY); /* PCIRQ1 */ + make_ipr_irq( TITAN_IRQ_MPCIA, IRL2_IPR_ADDR, IRL2_IPR_POS, IRL2_PRIORITY); /* PCIRQ2 */ + make_ipr_irq( TITAN_IRQ_USB, IRL3_IPR_ADDR, IRL3_IPR_POS, IRL3_PRIORITY); /* PCIRQ3 */ +} + +const char *get_system_type(void) +{ + return "Titan"; +} + +int __init platform_setup(void) +{ + printk("%s Platform Setup\n", get_system_type()); + return 0; +} + +struct sh_machine_vector mv_titan __initmv = { + .mv_nr_irqs = NR_IRQS, + + .mv_inb = titan_inb, + .mv_inw = titan_inw, + .mv_inl = titan_inl, + .mv_outb = titan_outb, + .mv_outw = titan_outw, + .mv_outl = titan_outl, + + .mv_inb_p = titan_inb_p, + .mv_inw_p = titan_inw, + .mv_inl_p = titan_inl, + .mv_outb_p = titan_outb_p, + .mv_outw_p = titan_outw, + .mv_outl_p = titan_outl, + + .mv_insl = titan_insl, + .mv_outsl = titan_outsl, + + .mv_ioremap = titan_ioremap, + .mv_ioport_map = titan_ioport_map, + + .mv_init_irq = init_titan_irq, + .mv_init_pci = pcibios_init_platform, +}; +ALIAS_MV(titan) diff --git a/arch/sh/configs/titan_defconfig b/arch/sh/configs/titan_defconfig new file mode 100644 index 000000000000..1db2904de9e5 --- /dev/null +++ b/arch/sh/configs/titan_defconfig @@ -0,0 +1,1367 @@ +# +# Automatically generated make config: don't edit +# Linux kernel version: 2.6.14-sh +# Wed Nov 9 00:35:56 2005 +# +CONFIG_SUPERH=y +CONFIG_UID16=y +CONFIG_RWSEM_GENERIC_SPINLOCK=y +CONFIG_GENERIC_HARDIRQS=y +CONFIG_GENERIC_IRQ_PROBE=y +CONFIG_GENERIC_CALIBRATE_DELAY=y +CONFIG_GENERIC_IOMAP=y + +# +# Code maturity level options +# +CONFIG_EXPERIMENTAL=y +CONFIG_CLEAN_COMPILE=y +CONFIG_BROKEN_ON_SMP=y +CONFIG_INIT_ENV_ARG_LIMIT=32 + +# +# General setup +# +CONFIG_LOCALVERSION="" +CONFIG_LOCALVERSION_AUTO=y +CONFIG_SWAP=y +CONFIG_SYSVIPC=y +# CONFIG_POSIX_MQUEUE is not set +# CONFIG_BSD_PROCESS_ACCT is not set +CONFIG_SYSCTL=y +# CONFIG_AUDIT is not set +CONFIG_HOTPLUG=y +CONFIG_KOBJECT_UEVENT=y +CONFIG_IKCONFIG=y +CONFIG_IKCONFIG_PROC=y +CONFIG_INITRAMFS_SOURCE="" +# CONFIG_EMBEDDED is not set +CONFIG_KALLSYMS=y +# CONFIG_KALLSYMS_ALL is not set +# CONFIG_KALLSYMS_EXTRA_PASS is not set +CONFIG_PRINTK=y +CONFIG_BUG=y +CONFIG_BASE_FULL=y +CONFIG_FUTEX=y +CONFIG_EPOLL=y +CONFIG_SHMEM=y +CONFIG_CC_ALIGN_FUNCTIONS=0 +CONFIG_CC_ALIGN_LABELS=0 +CONFIG_CC_ALIGN_LOOPS=0 +CONFIG_CC_ALIGN_JUMPS=0 +# CONFIG_TINY_SHMEM is not set +CONFIG_BASE_SMALL=0 + +# +# Loadable module support +# +CONFIG_MODULES=y +CONFIG_MODULE_UNLOAD=y +CONFIG_MODULE_FORCE_UNLOAD=y +CONFIG_OBSOLETE_MODPARM=y +# CONFIG_MODVERSIONS is not set +# CONFIG_MODULE_SRCVERSION_ALL is not set +CONFIG_KMOD=y + +# +# System type +# +# CONFIG_SH_SOLUTION_ENGINE is not set +# CONFIG_SH_7751_SOLUTION_ENGINE is not set +# CONFIG_SH_7300_SOLUTION_ENGINE is not set +# CONFIG_SH_73180_SOLUTION_ENGINE is not set +# CONFIG_SH_7751_SYSTEMH is not set +CONFIG_SH_TITAN=y +# CONFIG_SH_STB1_HARP is not set +# CONFIG_SH_STB1_OVERDRIVE is not set +# CONFIG_SH_HP6XX is not set +# CONFIG_SH_CQREEK is not set +# CONFIG_SH_DMIDA is not set +# CONFIG_SH_EC3104 is not set +# CONFIG_SH_SATURN is not set +# CONFIG_SH_DREAMCAST is not set +# CONFIG_SH_CAT68701 is not set +# CONFIG_SH_BIGSUR is not set +# CONFIG_SH_SH2000 is not set +# CONFIG_SH_ADX is not set +# CONFIG_SH_MPC1211 is not set +# CONFIG_SH_SH03 is not set +# CONFIG_SH_SECUREEDGE5410 is not set +# CONFIG_SH_HS7751RVOIP is not set +# CONFIG_SH_RTS7751R2D is not set +# CONFIG_SH_EDOSK7705 is not set +# CONFIG_SH_SH4202_MICRODEV is not set +# CONFIG_SH_LANDISK is not set +# CONFIG_SH_UNKNOWN is not set + +# +# Processor selection +# +CONFIG_CPU_SH4=y + +# +# SH-2 Processor Support +# +# CONFIG_CPU_SUBTYPE_SH7604 is not set + +# +# SH-3 Processor Support +# +# CONFIG_CPU_SUBTYPE_SH7300 is not set +# CONFIG_CPU_SUBTYPE_SH7705 is not set +# CONFIG_CPU_SUBTYPE_SH7707 is not set +# CONFIG_CPU_SUBTYPE_SH7708 is not set +# CONFIG_CPU_SUBTYPE_SH7709 is not set + +# +# SH-4 Processor Support +# +# CONFIG_CPU_SUBTYPE_SH7750 is not set +# CONFIG_CPU_SUBTYPE_SH7091 is not set +# CONFIG_CPU_SUBTYPE_SH7750R is not set +# CONFIG_CPU_SUBTYPE_SH7750S is not set +CONFIG_CPU_SUBTYPE_SH7751=y +CONFIG_CPU_SUBTYPE_SH7751R=y +# CONFIG_CPU_SUBTYPE_SH7760 is not set +# CONFIG_CPU_SUBTYPE_SH4_202 is not set + +# +# ST40 Processor Support +# +# CONFIG_CPU_SUBTYPE_ST40STB1 is not set +# CONFIG_CPU_SUBTYPE_ST40GX1 is not set + +# +# SH-4A Processor Support +# +# CONFIG_CPU_SUBTYPE_SH73180 is not set +# CONFIG_CPU_SUBTYPE_SH7770 is not set +# CONFIG_CPU_SUBTYPE_SH7780 is not set + +# +# Memory management options +# +CONFIG_MMU=y +CONFIG_SELECT_MEMORY_MODEL=y +CONFIG_FLATMEM_MANUAL=y +# CONFIG_DISCONTIGMEM_MANUAL is not set +# CONFIG_SPARSEMEM_MANUAL is not set +CONFIG_FLATMEM=y +CONFIG_FLAT_NODE_MEM_MAP=y +# CONFIG_SPARSEMEM_STATIC is not set + +# +# Cache configuration +# +# CONFIG_SH_DIRECT_MAPPED is not set +# CONFIG_SH_WRITETHROUGH is not set +# CONFIG_SH_OCRAM is not set +CONFIG_MEMORY_START=0x08030000 +CONFIG_MEMORY_SIZE=0x7fd0000 + +# +# Processor features +# +CONFIG_CPU_LITTLE_ENDIAN=y +CONFIG_SH_RTC=y +CONFIG_SH_FPU=y +# CONFIG_SH_STORE_QUEUES is not set + +# +# Timer support +# +CONFIG_SH_TMU=y +CONFIG_SH_PCLK_FREQ_BOOL=y +CONFIG_SH_PCLK_FREQ=30000000 + +# +# CPU Frequency scaling +# +# CONFIG_CPU_FREQ is not set + +# +# DMA support +# +CONFIG_SH_DMA=y +CONFIG_NR_ONCHIP_DMA_CHANNELS=8 +# CONFIG_NR_DMA_CHANNELS_BOOL is not set + +# +# Companion Chips +# +# CONFIG_HD6446X_SERIES is not set + +# +# Kernel features +# +# CONFIG_KEXEC is not set +# CONFIG_PREEMPT is not set +# CONFIG_SMP is not set + +# +# Boot options +# +CONFIG_ZERO_PAGE_OFFSET=0x00001000 +CONFIG_BOOT_LINK_OFFSET=0x009e0000 +# CONFIG_UBC_WAKEUP is not set +CONFIG_CMDLINE_BOOL=y +CONFIG_CMDLINE="console=ttySC1,38400N81 root=/dev/nfs ip=:::::eth1:autoconf" + +# +# Bus options +# +CONFIG_PCI=y +CONFIG_SH_PCIDMA_NONCOHERENT=y +CONFIG_PCI_AUTO=y +CONFIG_PCI_AUTO_UPDATE_RESOURCES=y +CONFIG_PCI_LEGACY_PROC=y +#CONFIG_PCI_DEBUG is not set + +# +# PCCARD (PCMCIA/CardBus) support +# +# CONFIG_PCCARD is not set + +# +# PCI Hotplug Support +# +CONFIG_HOTPLUG_PCI=y +# CONFIG_HOTPLUG_PCI_FAKE is not set +# CONFIG_HOTPLUG_PCI_CPCI is not set +# CONFIG_HOTPLUG_PCI_SHPC is not set + +# +# Executable file formats +# +CONFIG_BINFMT_ELF=y +# CONFIG_BINFMT_FLAT is not set +# CONFIG_BINFMT_MISC is not set + +# +# Networking +# +CONFIG_NET=y + +# +# Networking options +# +CONFIG_PACKET=y +CONFIG_PACKET_MMAP=y +CONFIG_UNIX=y +CONFIG_XFRM=y +# CONFIG_XFRM_USER is not set +CONFIG_NET_KEY=y +CONFIG_INET=y +CONFIG_IP_MULTICAST=y +CONFIG_IP_ADVANCED_ROUTER=y +CONFIG_ASK_IP_FIB_HASH=y +# CONFIG_IP_FIB_TRIE is not set +CONFIG_IP_FIB_HASH=y +CONFIG_IP_MULTIPLE_TABLES=y +# CONFIG_IP_ROUTE_FWMARK is not set +CONFIG_IP_ROUTE_MULTIPATH=y +CONFIG_IP_ROUTE_MULTIPATH_CACHED=y +CONFIG_IP_ROUTE_MULTIPATH_RR=m +CONFIG_IP_ROUTE_MULTIPATH_RANDOM=m +CONFIG_IP_ROUTE_MULTIPATH_WRANDOM=m +CONFIG_IP_ROUTE_MULTIPATH_DRR=m +# CONFIG_IP_ROUTE_VERBOSE is not set +CONFIG_IP_PNP=y +CONFIG_IP_PNP_DHCP=y +CONFIG_IP_PNP_BOOTP=y +CONFIG_IP_PNP_RARP=y +CONFIG_NET_IPIP=m +CONFIG_NET_IPGRE=m +CONFIG_NET_IPGRE_BROADCAST=y +CONFIG_IP_MROUTE=y +CONFIG_IP_PIMSM_V1=y +CONFIG_IP_PIMSM_V2=y +# CONFIG_ARPD is not set +CONFIG_SYN_COOKIES=y +CONFIG_INET_AH=m +CONFIG_INET_ESP=m +CONFIG_INET_IPCOMP=m +CONFIG_INET_TUNNEL=m +CONFIG_INET_DIAG=m +CONFIG_INET_TCP_DIAG=m +# CONFIG_TCP_CONG_ADVANCED is not set +CONFIG_TCP_CONG_BIC=y + +# +# IP: Virtual Server Configuration +# +# CONFIG_IP_VS is not set +CONFIG_IPV6=m +CONFIG_IPV6_PRIVACY=y +CONFIG_INET6_AH=m +CONFIG_INET6_ESP=m +CONFIG_INET6_IPCOMP=m +CONFIG_INET6_TUNNEL=m +CONFIG_IPV6_TUNNEL=m +CONFIG_NETFILTER=y +# CONFIG_NETFILTER_DEBUG is not set +CONFIG_BRIDGE_NETFILTER=y +CONFIG_NETFILTER_NETLINK=m +CONFIG_NETFILTER_NETLINK_QUEUE=m +CONFIG_NETFILTER_NETLINK_LOG=m + +# +# IP: Netfilter Configuration +# +CONFIG_IP_NF_CONNTRACK=m +CONFIG_IP_NF_CT_ACCT=y +CONFIG_IP_NF_CONNTRACK_MARK=y +CONFIG_IP_NF_CONNTRACK_EVENTS=y +CONFIG_IP_NF_CONNTRACK_NETLINK=m +# CONFIG_IP_NF_CT_PROTO_SCTP is not set +CONFIG_IP_NF_FTP=m +CONFIG_IP_NF_IRC=m +CONFIG_IP_NF_NETBIOS_NS=m +CONFIG_IP_NF_TFTP=m +# CONFIG_IP_NF_AMANDA is not set +CONFIG_IP_NF_PPTP=m +CONFIG_IP_NF_QUEUE=m +CONFIG_IP_NF_IPTABLES=m +CONFIG_IP_NF_MATCH_LIMIT=m +CONFIG_IP_NF_MATCH_IPRANGE=m +CONFIG_IP_NF_MATCH_MAC=m +CONFIG_IP_NF_MATCH_PKTTYPE=m +CONFIG_IP_NF_MATCH_MARK=m +CONFIG_IP_NF_MATCH_MULTIPORT=m +CONFIG_IP_NF_MATCH_TOS=m +CONFIG_IP_NF_MATCH_RECENT=m +CONFIG_IP_NF_MATCH_ECN=m +CONFIG_IP_NF_MATCH_DSCP=m +CONFIG_IP_NF_MATCH_AH_ESP=m +CONFIG_IP_NF_MATCH_LENGTH=m +CONFIG_IP_NF_MATCH_TTL=m +CONFIG_IP_NF_MATCH_TCPMSS=m +CONFIG_IP_NF_MATCH_HELPER=m +CONFIG_IP_NF_MATCH_STATE=m +CONFIG_IP_NF_MATCH_CONNTRACK=m +CONFIG_IP_NF_MATCH_OWNER=m +# CONFIG_IP_NF_MATCH_PHYSDEV is not set +CONFIG_IP_NF_MATCH_ADDRTYPE=m +CONFIG_IP_NF_MATCH_REALM=m +# CONFIG_IP_NF_MATCH_SCTP is not set +# CONFIG_IP_NF_MATCH_DCCP is not set +CONFIG_IP_NF_MATCH_COMMENT=m +CONFIG_IP_NF_MATCH_CONNMARK=m +CONFIG_IP_NF_MATCH_CONNBYTES=m +CONFIG_IP_NF_MATCH_HASHLIMIT=m +CONFIG_IP_NF_MATCH_STRING=m +CONFIG_IP_NF_FILTER=m +CONFIG_IP_NF_TARGET_REJECT=m +CONFIG_IP_NF_TARGET_LOG=m +CONFIG_IP_NF_TARGET_ULOG=m +CONFIG_IP_NF_TARGET_TCPMSS=m +CONFIG_IP_NF_TARGET_NFQUEUE=m +CONFIG_IP_NF_NAT=m +CONFIG_IP_NF_NAT_NEEDED=y +CONFIG_IP_NF_TARGET_MASQUERADE=m +CONFIG_IP_NF_TARGET_REDIRECT=m +CONFIG_IP_NF_TARGET_NETMAP=m +CONFIG_IP_NF_TARGET_SAME=m +CONFIG_IP_NF_NAT_SNMP_BASIC=m +CONFIG_IP_NF_NAT_IRC=m +CONFIG_IP_NF_NAT_FTP=m +CONFIG_IP_NF_NAT_TFTP=m +CONFIG_IP_NF_NAT_PPTP=m +CONFIG_IP_NF_MANGLE=m +CONFIG_IP_NF_TARGET_TOS=m +CONFIG_IP_NF_TARGET_ECN=m +CONFIG_IP_NF_TARGET_DSCP=m +CONFIG_IP_NF_TARGET_MARK=m +CONFIG_IP_NF_TARGET_CLASSIFY=m +CONFIG_IP_NF_TARGET_TTL=m +CONFIG_IP_NF_TARGET_CONNMARK=m +CONFIG_IP_NF_TARGET_CLUSTERIP=m +CONFIG_IP_NF_RAW=m +CONFIG_IP_NF_TARGET_NOTRACK=m +CONFIG_IP_NF_ARPTABLES=m +CONFIG_IP_NF_ARPFILTER=m +CONFIG_IP_NF_ARP_MANGLE=m + +# +# IPv6: Netfilter Configuration (EXPERIMENTAL) +# +CONFIG_IP6_NF_QUEUE=m +CONFIG_IP6_NF_IPTABLES=m +CONFIG_IP6_NF_MATCH_LIMIT=m +CONFIG_IP6_NF_MATCH_MAC=m +CONFIG_IP6_NF_MATCH_RT=m +CONFIG_IP6_NF_MATCH_OPTS=m +CONFIG_IP6_NF_MATCH_FRAG=m +CONFIG_IP6_NF_MATCH_HL=m +CONFIG_IP6_NF_MATCH_MULTIPORT=m +CONFIG_IP6_NF_MATCH_OWNER=m +CONFIG_IP6_NF_MATCH_MARK=m +CONFIG_IP6_NF_MATCH_IPV6HEADER=m +CONFIG_IP6_NF_MATCH_AHESP=m +CONFIG_IP6_NF_MATCH_LENGTH=m +CONFIG_IP6_NF_MATCH_EUI64=m +# CONFIG_IP6_NF_MATCH_PHYSDEV is not set +CONFIG_IP6_NF_FILTER=m +CONFIG_IP6_NF_TARGET_LOG=m +CONFIG_IP6_NF_TARGET_REJECT=m +CONFIG_IP6_NF_TARGET_NFQUEUE=m +CONFIG_IP6_NF_MANGLE=m +CONFIG_IP6_NF_TARGET_MARK=m +CONFIG_IP6_NF_TARGET_HL=m +CONFIG_IP6_NF_RAW=m + +# +# Bridge: Netfilter Configuration +# +# CONFIG_BRIDGE_NF_EBTABLES is not set + +# +# DCCP Configuration (EXPERIMENTAL) +# +# CONFIG_IP_DCCP is not set + +# +# SCTP Configuration (EXPERIMENTAL) +# +# CONFIG_IP_SCTP is not set +# CONFIG_ATM is not set +CONFIG_BRIDGE=m +CONFIG_VLAN_8021Q=m +# CONFIG_DECNET is not set +# CONFIG_LLC2 is not set +# CONFIG_IPX is not set +# CONFIG_ATALK is not set +# CONFIG_X25 is not set +# CONFIG_LAPB is not set +# CONFIG_NET_DIVERT is not set +# CONFIG_ECONET is not set +# CONFIG_WAN_ROUTER is not set +CONFIG_NET_SCHED=y +CONFIG_NET_SCH_CLK_JIFFIES=y +# CONFIG_NET_SCH_CLK_GETTIMEOFDAY is not set +# CONFIG_NET_SCH_CLK_CPU is not set +CONFIG_NET_SCH_CBQ=m +CONFIG_NET_SCH_HTB=m +CONFIG_NET_SCH_HFSC=m +CONFIG_NET_SCH_PRIO=m +CONFIG_NET_SCH_RED=m +CONFIG_NET_SCH_SFQ=m +CONFIG_NET_SCH_TEQL=m +CONFIG_NET_SCH_TBF=m +CONFIG_NET_SCH_GRED=m +CONFIG_NET_SCH_DSMARK=m +CONFIG_NET_SCH_NETEM=m +CONFIG_NET_SCH_INGRESS=m +CONFIG_NET_QOS=y +CONFIG_NET_ESTIMATOR=y +CONFIG_NET_CLS=y +CONFIG_NET_CLS_BASIC=m +CONFIG_NET_CLS_TCINDEX=m +CONFIG_NET_CLS_ROUTE4=m +CONFIG_NET_CLS_ROUTE=y +CONFIG_NET_CLS_FW=m +CONFIG_NET_CLS_U32=m +CONFIG_CLS_U32_PERF=y +CONFIG_NET_CLS_IND=y +CONFIG_CLS_U32_MARK=y +CONFIG_NET_CLS_RSVP=m +CONFIG_NET_CLS_RSVP6=m +CONFIG_NET_EMATCH=y +CONFIG_NET_EMATCH_STACK=32 +CONFIG_NET_EMATCH_CMP=m +CONFIG_NET_EMATCH_NBYTE=m +CONFIG_NET_EMATCH_U32=m +CONFIG_NET_EMATCH_META=m +CONFIG_NET_EMATCH_TEXT=m +CONFIG_NET_CLS_ACT=y +CONFIG_NET_ACT_POLICE=m +CONFIG_NET_ACT_GACT=m +CONFIG_GACT_PROB=y +CONFIG_NET_ACT_MIRRED=m +CONFIG_NET_ACT_IPT=m +CONFIG_NET_ACT_PEDIT=m +# CONFIG_NET_ACT_SIMP 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 +# CONFIG_IEEE80211 is not set + +# +# Device Drivers +# + +# +# Generic Driver Options +# +CONFIG_STANDALONE=y +CONFIG_PREVENT_FIRMWARE_BUILD=y +CONFIG_FW_LOADER=m +# CONFIG_DEBUG_DRIVER is not set + +# +# Connector - unified userspace <-> kernelspace linker +# +CONFIG_CONNECTOR=m + +# +# Memory Technology Devices (MTD) +# +# CONFIG_MTD is not set + +# +# Parallel port support +# +# CONFIG_PARPORT is not set + +# +# Plug and Play support +# + +# +# Block devices +# +# CONFIG_BLK_CPQ_DA is not set +# CONFIG_BLK_CPQ_CISS_DA is not set +# CONFIG_BLK_DEV_DAC960 is not set +CONFIG_BLK_SSFDC=y +# CONFIG_BLK_DEV_UMEM is not set +# CONFIG_BLK_DEV_COW_COMMON is not set +CONFIG_BLK_DEV_LOOP=m +# CONFIG_BLK_DEV_CRYPTOLOOP is not set +# CONFIG_BLK_DEV_NBD is not set +# CONFIG_BLK_DEV_SX8 is not set +# CONFIG_BLK_DEV_UB is not set +CONFIG_BLK_DEV_RAM=y +CONFIG_BLK_DEV_RAM_COUNT=16 +CONFIG_BLK_DEV_RAM_SIZE=4096 +CONFIG_BLK_DEV_INITRD=y +# CONFIG_LBD is not set +# CONFIG_CDROM_PKTCDVD is not set + +# +# IO Schedulers +# +CONFIG_IOSCHED_NOOP=y +CONFIG_IOSCHED_AS=y +CONFIG_IOSCHED_DEADLINE=y +CONFIG_IOSCHED_CFQ=y +# CONFIG_ATA_OVER_ETH is not set + +# +# ATA/ATAPI/MFM/RLL support +# +# CONFIG_IDE is not set + +# +# SCSI device support +# +# CONFIG_RAID_ATTRS is not set +CONFIG_SCSI=m +CONFIG_SCSI_PROC_FS=y + +# +# SCSI support type (disk, tape, CD-ROM) +# +CONFIG_BLK_DEV_SD=m +# CONFIG_CHR_DEV_ST is not set +# CONFIG_CHR_DEV_OSST is not set +CONFIG_BLK_DEV_SR=m +# CONFIG_BLK_DEV_SR_VENDOR is not set +CONFIG_CHR_DEV_SG=m +# CONFIG_CHR_DEV_SCH is not set + +# +# Some SCSI devices (e.g. CD jukebox) support multiple LUNs +# +# CONFIG_SCSI_MULTI_LUN is not set +# CONFIG_SCSI_CONSTANTS is not set +# CONFIG_SCSI_LOGGING is not set + +# +# SCSI Transport Attributes +# +# CONFIG_SCSI_SPI_ATTRS is not set +# CONFIG_SCSI_FC_ATTRS is not set +# CONFIG_SCSI_ISCSI_ATTRS is not set +# CONFIG_SCSI_SAS_ATTRS is not set + +# +# SCSI low-level drivers +# +# CONFIG_BLK_DEV_3W_XXXX_RAID is not set +# CONFIG_SCSI_3W_9XXX is not set +# CONFIG_SCSI_ACARD is not set +# CONFIG_SCSI_AACRAID is not set +# CONFIG_SCSI_AIC7XXX is not set +# CONFIG_SCSI_AIC7XXX_OLD is not set +# CONFIG_SCSI_AIC79XX is not set +# CONFIG_SCSI_DPT_I2O is not set +# CONFIG_MEGARAID_NEWGEN is not set +# CONFIG_MEGARAID_LEGACY is not set +# CONFIG_MEGARAID_SAS is not set +# CONFIG_SCSI_SATA is not set +# CONFIG_SCSI_DMX3191D is not set +# CONFIG_SCSI_FUTURE_DOMAIN is not set +# CONFIG_SCSI_IPS is not set +# CONFIG_SCSI_INITIO is not set +# CONFIG_SCSI_INIA100 is not set +# CONFIG_SCSI_SYM53C8XX_2 is not set +# CONFIG_SCSI_IPR is not set +# CONFIG_SCSI_QLOGIC_FC is not set +# CONFIG_SCSI_QLOGIC_1280 is not set +CONFIG_SCSI_QLA2XXX=m +# CONFIG_SCSI_QLA21XX is not set +# CONFIG_SCSI_QLA22XX is not set +# CONFIG_SCSI_QLA2300 is not set +# CONFIG_SCSI_QLA2322 is not set +# CONFIG_SCSI_QLA6312 is not set +# CONFIG_SCSI_QLA24XX is not set +# CONFIG_SCSI_LPFC is not set +# CONFIG_SCSI_DC395x is not set +# CONFIG_SCSI_DC390T is not set +# CONFIG_SCSI_NSP32 is not set +# CONFIG_SCSI_DEBUG is not set + +# +# Multi-device support (RAID and LVM) +# +# CONFIG_MD is not set + +# +# Fusion MPT device support +# +# CONFIG_FUSION is not set +# CONFIG_FUSION_SPI is not set +# CONFIG_FUSION_FC is not set +# CONFIG_FUSION_SAS 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=m + +# +# ARCnet devices +# +# CONFIG_ARCNET is not set + +# +# PHY device support +# +CONFIG_PHYLIB=m +CONFIG_PHYCONTROL=y + +# +# MII PHY device drivers +# +CONFIG_MARVELL_PHY=m +CONFIG_DAVICOM_PHY=m +CONFIG_QSEMI_PHY=m +CONFIG_LXT_PHY=m +CONFIG_CICADA_PHY=m + +# +# Ethernet (10 or 100Mbit) +# +CONFIG_NET_ETHERNET=y +CONFIG_MII=y +# CONFIG_STNIC is not set +# CONFIG_HAPPYMEAL is not set +# CONFIG_SUNGEM is not set +CONFIG_CASSINI=m +# CONFIG_NET_VENDOR_3COM is not set +# CONFIG_SMC91X 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_B44 is not set +# CONFIG_FORCEDETH is not set +# CONFIG_DGRS is not set +# CONFIG_EEPRO100 is not set +# CONFIG_E100 is not set +# CONFIG_FEALNX is not set +# CONFIG_NATSEMI is not set +# CONFIG_NE2K_PCI is not set +# CONFIG_8139CP is not set +CONFIG_8139TOO=y +# CONFIG_8139TOO_PIO is not set +CONFIG_8139TOO_TUNE_TWISTER=y +# CONFIG_8139TOO_8129 is not set +CONFIG_8139_OLD_RX_RESET=y +# 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_YELLOWFIN is not set +# CONFIG_R8169 is not set +# CONFIG_SIS190 is not set +# CONFIG_SKGE 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_CHELSIO_T1 is not set +# 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=y + +# +# Obsolete Wireless cards support (pre-802.11) +# +# CONFIG_STRIP is not set + +# +# Wireless 802.11b ISA/PCI cards support +# +# CONFIG_HERMES is not set +# CONFIG_ATMEL is not set + +# +# Prism GT/Duette 802.11(a/b/g) PCI/Cardbus support +# +CONFIG_PRISM54=m +# CONFIG_HOSTAP is not set +CONFIG_NET_WIRELESS=y + +# +# Wan interfaces +# +# CONFIG_WAN is not set +# CONFIG_FDDI is not set +# CONFIG_HIPPI is not set +CONFIG_PPP=m +CONFIG_PPP_MULTILINK=y +CONFIG_PPP_FILTER=y +CONFIG_PPP_ASYNC=m +CONFIG_PPP_SYNC_TTY=m +CONFIG_PPP_DEFLATE=m +CONFIG_PPP_BSDCOMP=m +CONFIG_PPPOE=m +# CONFIG_SLIP is not set +# CONFIG_NET_FC is not set +# CONFIG_SHAPER is not set +# CONFIG_NETCONSOLE is not set +# CONFIG_NETPOLL is not set +# CONFIG_NET_POLL_CONTROLLER is not set + +# +# ISDN subsystem +# +# CONFIG_ISDN is not set + +# +# Telephony Support +# +# CONFIG_PHONE is not set + +# +# Input device support +# +CONFIG_INPUT=y + +# +# Userland interfaces +# +CONFIG_INPUT_MOUSEDEV=y +# CONFIG_INPUT_MOUSEDEV_PSAUX is not set +CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024 +CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768 +# 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=y +CONFIG_VT_CONSOLE=y +CONFIG_HW_CONSOLE=y +# CONFIG_SERIAL_NONSTANDARD is not set + +# +# Serial drivers +# +# CONFIG_SERIAL_8250 is not set + +# +# Non-8250 serial port support +# +CONFIG_SERIAL_SH_SCI=y +CONFIG_SERIAL_SH_SCI_CONSOLE=y +CONFIG_SERIAL_CORE=y +CONFIG_SERIAL_CORE_CONSOLE=y +# CONFIG_SERIAL_JSM is not set +CONFIG_UNIX98_PTYS=y +CONFIG_LEGACY_PTYS=y +CONFIG_LEGACY_PTY_COUNT=256 + +# +# 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 +# +# CONFIG_TCG_TPM is not set + +# +# I2C support +# +# CONFIG_I2C is not set + +# +# Dallas's 1-wire bus +# +# CONFIG_W1 is not set + +# +# Hardware Monitoring support +# +CONFIG_HWMON=y +# CONFIG_HWMON_VID is not set +# CONFIG_HWMON_DEBUG_CHIP is not set + +# +# Misc devices +# + +# +# Multimedia Capabilities Port drivers +# + +# +# Multimedia devices +# +# CONFIG_VIDEO_DEV is not set + +# +# Digital Video Broadcasting Devices +# +# CONFIG_DVB is not set + +# +# Graphics support +# +# CONFIG_FB is not set + +# +# Console display driver support +# +CONFIG_DUMMY_CONSOLE=y + +# +# Sound +# +# CONFIG_SOUND is not set + +# +# USB support +# +CONFIG_USB_ARCH_HAS_HCD=y +CONFIG_USB_ARCH_HAS_OHCI=y +CONFIG_USB=m +# CONFIG_USB_DEBUG is not set + +# +# Miscellaneous USB options +# +CONFIG_USB_DEVICEFS=y +# CONFIG_USB_BANDWIDTH is not set +# CONFIG_USB_DYNAMIC_MINORS is not set +# CONFIG_USB_OTG is not set + +# +# USB Host Controller Drivers +# +CONFIG_USB_EHCI_HCD=m +# CONFIG_USB_EHCI_SPLIT_ISO is not set +# CONFIG_USB_EHCI_ROOT_HUB_TT is not set +# CONFIG_USB_ISP116X_HCD is not set +CONFIG_USB_OHCI_HCD=m +# CONFIG_USB_OHCI_BIG_ENDIAN is not set +CONFIG_USB_OHCI_LITTLE_ENDIAN=y +# CONFIG_USB_UHCI_HCD is not set +# CONFIG_USB_SL811_HCD is not set + +# +# USB Device Class drivers +# +# CONFIG_USB_BLUETOOTH_TTY is not set +# CONFIG_USB_ACM is not set +# CONFIG_USB_PRINTER is not set + +# +# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support' may also be needed; see USB_STORAGE Help for more information +# +CONFIG_USB_STORAGE=m +# CONFIG_USB_STORAGE_DEBUG is not set +# CONFIG_USB_STORAGE_DATAFAB is not set +# CONFIG_USB_STORAGE_FREECOM is not set +# CONFIG_USB_STORAGE_DPCM is not set +# CONFIG_USB_STORAGE_USBAT is not set +# CONFIG_USB_STORAGE_SDDR09 is not set +# CONFIG_USB_STORAGE_SDDR55 is not set +# CONFIG_USB_STORAGE_JUMPSHOT is not set + +# +# USB Input Devices +# +# CONFIG_USB_HID is not set + +# +# USB HID Boot Protocol drivers +# +# CONFIG_USB_KBD is not set +# CONFIG_USB_MOUSE is not set +# CONFIG_USB_AIPTEK is not set +# CONFIG_USB_WACOM is not set +# CONFIG_USB_ACECAD is not set +# CONFIG_USB_KBTAB is not set +# CONFIG_USB_POWERMATE is not set +# CONFIG_USB_MTOUCH is not set +# CONFIG_USB_ITMTOUCH is not set +# CONFIG_USB_EGALAX is not set +# CONFIG_USB_YEALINK is not set +# CONFIG_USB_XPAD is not set +# CONFIG_USB_ATI_REMOTE is not set +# CONFIG_USB_KEYSPAN_REMOTE is not set +# CONFIG_USB_APPLETOUCH is not set + +# +# USB Imaging devices +# +# CONFIG_USB_MDC800 is not set +# CONFIG_USB_MICROTEK is not set + +# +# USB Multimedia devices +# +# CONFIG_USB_DABUSB is not set + +# +# Video4Linux support is needed for USB Multimedia device support +# + +# +# USB Network Adapters +# +# CONFIG_USB_CATC is not set +# CONFIG_USB_KAWETH is not set +# CONFIG_USB_PEGASUS is not set +# CONFIG_USB_RTL8150 is not set +# CONFIG_USB_USBNET is not set +# CONFIG_USB_ZD1201 is not set +CONFIG_USB_MON=y + +# +# USB port drivers +# + +# +# USB Serial Converter support +# +CONFIG_USB_SERIAL=m +CONFIG_USB_SERIAL_GENERIC=y +# CONFIG_USB_SERIAL_AIRPRIME is not set +# CONFIG_USB_SERIAL_BELKIN is not set +# CONFIG_USB_SERIAL_WHITEHEAT is not set +# CONFIG_USB_SERIAL_DIGI_ACCELEPORT is not set +# CONFIG_USB_SERIAL_CP2101 is not set +# CONFIG_USB_SERIAL_CYPRESS_M8 is not set +# CONFIG_USB_SERIAL_EMPEG is not set +# CONFIG_USB_SERIAL_FTDI_SIO is not set +# CONFIG_USB_SERIAL_VISOR is not set +# CONFIG_USB_SERIAL_IPAQ is not set +# CONFIG_USB_SERIAL_IR is not set +# CONFIG_USB_SERIAL_EDGEPORT is not set +# CONFIG_USB_SERIAL_EDGEPORT_TI is not set +# CONFIG_USB_SERIAL_GARMIN is not set +# CONFIG_USB_SERIAL_IPW is not set +# CONFIG_USB_SERIAL_KEYSPAN_PDA is not set +# CONFIG_USB_SERIAL_KEYSPAN is not set +# CONFIG_USB_SERIAL_KLSI is not set +# CONFIG_USB_SERIAL_KOBIL_SCT is not set +# CONFIG_USB_SERIAL_MCT_U232 is not set +CONFIG_USB_SERIAL_PL2303=m +# CONFIG_USB_SERIAL_HP4X is not set +# CONFIG_USB_SERIAL_SAFE is not set +# CONFIG_USB_SERIAL_TI is not set +# CONFIG_USB_SERIAL_CYBERJACK is not set +# CONFIG_USB_SERIAL_XIRCOM is not set +# CONFIG_USB_SERIAL_OMNINET is not set + +# +# USB Miscellaneous drivers +# +# CONFIG_USB_EMI62 is not set +# CONFIG_USB_EMI26 is not set +# CONFIG_USB_AUERSWALD is not set +# CONFIG_USB_RIO500 is not set +# CONFIG_USB_LEGOTOWER is not set +# CONFIG_USB_LCD is not set +# CONFIG_USB_LED is not set +# CONFIG_USB_CYTHERM is not set +# CONFIG_USB_PHIDGETKIT is not set +# CONFIG_USB_PHIDGETSERVO is not set +# CONFIG_USB_IDMOUSE is not set +# CONFIG_USB_SISUSBVGA is not set +# CONFIG_USB_LD is not set +# CONFIG_USB_TEST is not set + +# +# USB DSL modem support +# + +# +# USB Gadget Support +# +# CONFIG_USB_GADGET is not set + +# +# MMC/SD Card support +# +# CONFIG_MMC is not set + +# +# InfiniBand support +# +# CONFIG_INFINIBAND is not set + +# +# SN Devices +# + +# +# File systems +# +CONFIG_EXT2_FS=y +CONFIG_EXT2_FS_XATTR=y +CONFIG_EXT2_FS_POSIX_ACL=y +CONFIG_EXT2_FS_SECURITY=y +# CONFIG_EXT2_FS_XIP is not set +CONFIG_EXT3_FS=y +CONFIG_EXT3_FS_XATTR=y +CONFIG_EXT3_FS_POSIX_ACL=y +CONFIG_EXT3_FS_SECURITY=y +CONFIG_JBD=y +# CONFIG_JBD_DEBUG is not set +CONFIG_FS_MBCACHE=y +CONFIG_REISERFS_FS=m +# CONFIG_REISERFS_CHECK is not set +# CONFIG_REISERFS_PROC_INFO is not set +# CONFIG_REISERFS_FS_XATTR is not set +# CONFIG_JFS_FS is not set +CONFIG_FS_POSIX_ACL=y +# CONFIG_XFS_FS is not set +# CONFIG_MINIX_FS is not set +# CONFIG_ROMFS_FS 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 +CONFIG_FUSE_FS=m + +# +# CD-ROM/DVD Filesystems +# +CONFIG_ISO9660_FS=m +CONFIG_JOLIET=y +CONFIG_ZISOFS=y +CONFIG_ZISOFS_FS=m +CONFIG_UDF_FS=m +CONFIG_UDF_NLS=y + +# +# DOS/FAT/NT Filesystems +# +CONFIG_FAT_FS=m +CONFIG_MSDOS_FS=m +CONFIG_VFAT_FS=m +CONFIG_FAT_DEFAULT_CODEPAGE=437 +CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1" +# CONFIG_NTFS_FS is not set + +# +# Pseudo filesystems +# +CONFIG_PROC_FS=y +CONFIG_PROC_KCORE=y +CONFIG_SYSFS=y +CONFIG_TMPFS=y +# CONFIG_HUGETLBFS is not set +# CONFIG_HUGETLB_PAGE is not set +CONFIG_RAMFS=y +CONFIG_RELAYFS_FS=m + +# +# Miscellaneous filesystems +# +# CONFIG_ADFS_FS is not set +# CONFIG_AFFS_FS is not set +# CONFIG_HFS_FS is not set +# CONFIG_HFSPLUS_FS is not set +# CONFIG_BEFS_FS is not set +# CONFIG_BFS_FS is not set +# CONFIG_EFS_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_NFS_V4 is not set +# CONFIG_NFS_DIRECTIO is not set +CONFIG_NFSD=y +CONFIG_NFSD_V3=y +# CONFIG_NFSD_V3_ACL is not set +# CONFIG_NFSD_V4 is not set +CONFIG_NFSD_TCP=y +CONFIG_ROOT_NFS=y +CONFIG_LOCKD=y +CONFIG_LOCKD_V4=y +CONFIG_EXPORTFS=y +CONFIG_NFS_COMMON=y +CONFIG_SUNRPC=y +# CONFIG_RPCSEC_GSS_KRB5 is not set +# CONFIG_RPCSEC_GSS_SPKM3 is not set +CONFIG_SMB_FS=m +# CONFIG_SMB_NLS_DEFAULT is not set +# CONFIG_CIFS is not set +# CONFIG_NCP_FS is not set +# CONFIG_CODA_FS is not set +# CONFIG_AFS_FS is not set +CONFIG_9P_FS=m + +# +# Partition Types +# +CONFIG_PARTITION_ADVANCED=y +# CONFIG_ACORN_PARTITION is not set +# CONFIG_OSF_PARTITION is not set +# CONFIG_AMIGA_PARTITION is not set +# CONFIG_ATARI_PARTITION is not set +# CONFIG_MAC_PARTITION is not set +CONFIG_MSDOS_PARTITION=y +# CONFIG_BSD_DISKLABEL is not set +# CONFIG_MINIX_SUBPARTITION is not set +# CONFIG_SOLARIS_X86_PARTITION is not set +# CONFIG_UNIXWARE_DISKLABEL is not set +# CONFIG_LDM_PARTITION is not set +# CONFIG_SGI_PARTITION is not set +# CONFIG_ULTRIX_PARTITION is not set +# CONFIG_SUN_PARTITION is not set +# CONFIG_EFI_PARTITION is not set + +# +# Native Language Support +# +CONFIG_NLS=m +CONFIG_NLS_DEFAULT="iso8859-1" +CONFIG_NLS_CODEPAGE_437=m +# CONFIG_NLS_CODEPAGE_737 is not set +# CONFIG_NLS_CODEPAGE_775 is not set +# CONFIG_NLS_CODEPAGE_850 is not set +# CONFIG_NLS_CODEPAGE_852 is not set +# CONFIG_NLS_CODEPAGE_855 is not set +# CONFIG_NLS_CODEPAGE_857 is not set +# CONFIG_NLS_CODEPAGE_860 is not set +# CONFIG_NLS_CODEPAGE_861 is not set +# CONFIG_NLS_CODEPAGE_862 is not set +# CONFIG_NLS_CODEPAGE_863 is not set +# CONFIG_NLS_CODEPAGE_864 is not set +# CONFIG_NLS_CODEPAGE_865 is not set +# CONFIG_NLS_CODEPAGE_866 is not set +# CONFIG_NLS_CODEPAGE_869 is not set +# CONFIG_NLS_CODEPAGE_936 is not set +# CONFIG_NLS_CODEPAGE_950 is not set +# CONFIG_NLS_CODEPAGE_932 is not set +# CONFIG_NLS_CODEPAGE_949 is not set +# CONFIG_NLS_CODEPAGE_874 is not set +# CONFIG_NLS_ISO8859_8 is not set +# CONFIG_NLS_CODEPAGE_1250 is not set +# CONFIG_NLS_CODEPAGE_1251 is not set +CONFIG_NLS_ASCII=m +CONFIG_NLS_ISO8859_1=m +# CONFIG_NLS_ISO8859_2 is not set +# CONFIG_NLS_ISO8859_3 is not set +# CONFIG_NLS_ISO8859_4 is not set +# CONFIG_NLS_ISO8859_5 is not set +# CONFIG_NLS_ISO8859_6 is not set +# CONFIG_NLS_ISO8859_7 is not set +# CONFIG_NLS_ISO8859_9 is not set +# CONFIG_NLS_ISO8859_13 is not set +# CONFIG_NLS_ISO8859_14 is not set +# CONFIG_NLS_ISO8859_15 is not set +# CONFIG_NLS_KOI8_R is not set +# CONFIG_NLS_KOI8_U is not set +CONFIG_NLS_UTF8=m + +# +# Profiling support +# +# CONFIG_PROFILING is not set + +# +# Kernel hacking +# +# CONFIG_PRINTK_TIME is not set +CONFIG_DEBUG_KERNEL=y +CONFIG_MAGIC_SYSRQ=y +CONFIG_LOG_BUF_SHIFT=16 +# CONFIG_DETECT_SOFTLOCKUP is not set +# CONFIG_SCHEDSTATS is not set +CONFIG_DEBUG_SLAB=y +# CONFIG_DEBUG_SPINLOCK is not set +# CONFIG_DEBUG_SPINLOCK_SLEEP is not set +# CONFIG_DEBUG_KOBJECT is not set +# CONFIG_DEBUG_INFO is not set +# CONFIG_DEBUG_FS is not set +# CONFIG_FRAME_POINTER is not set +# CONFIG_SH_STANDARD_BIOS is not set +CONFIG_EARLY_SCIF_CONSOLE=y +# CONFIG_EARLY_PRINTK is not set +# CONFIG_KGDB is not set + +# +# Security options +# +# CONFIG_KEYS is not set +# CONFIG_SECURITY is not set + +# +# Cryptographic options +# +CONFIG_CRYPTO=y +CONFIG_CRYPTO_HMAC=y +# CONFIG_CRYPTO_NULL is not set +CONFIG_CRYPTO_MD4=m +CONFIG_CRYPTO_MD5=m +CONFIG_CRYPTO_SHA1=m +CONFIG_CRYPTO_SHA256=m +CONFIG_CRYPTO_SHA512=m +CONFIG_CRYPTO_WP512=m +CONFIG_CRYPTO_TGR192=m +CONFIG_CRYPTO_DES=m +CONFIG_CRYPTO_BLOWFISH=m +CONFIG_CRYPTO_TWOFISH=m +CONFIG_CRYPTO_SERPENT=m +CONFIG_CRYPTO_AES=m +CONFIG_CRYPTO_CAST5=m +CONFIG_CRYPTO_CAST6=m +CONFIG_CRYPTO_TEA=m +CONFIG_CRYPTO_ARC4=m +CONFIG_CRYPTO_KHAZAD=m +CONFIG_CRYPTO_ANUBIS=m +CONFIG_CRYPTO_DEFLATE=m +CONFIG_CRYPTO_MICHAEL_MIC=m +CONFIG_CRYPTO_CRC32C=m +# CONFIG_CRYPTO_TEST is not set + +# +# Hardware crypto devices +# + +# +# Library routines +# +CONFIG_CRC_CCITT=m +CONFIG_CRC16=m +CONFIG_CRC32=y +CONFIG_LIBCRC32C=m +CONFIG_ZLIB_INFLATE=m +CONFIG_ZLIB_DEFLATE=m +CONFIG_TEXTSEARCH=y +CONFIG_TEXTSEARCH_KMP=m +CONFIG_TEXTSEARCH_BM=m +CONFIG_TEXTSEARCH_FSM=m diff --git a/arch/sh/drivers/pci/Makefile b/arch/sh/drivers/pci/Makefile index 365bc16a4a83..86d6d0660d4c 100644 --- a/arch/sh/drivers/pci/Makefile +++ b/arch/sh/drivers/pci/Makefile @@ -14,3 +14,4 @@ obj-$(CONFIG_SH_SECUREEDGE5410) += ops-snapgear.o obj-$(CONFIG_SH_BIGSUR) += ops-bigsur.o obj-$(CONFIG_SH_RTS7751R2D) += ops-rts7751r2d.o fixups-rts7751r2d.o obj-$(CONFIG_SH_SH03) += ops-sh03.o fixups-sh03.o +obj-$(CONFIG_SH_TITAN) += ops-titan.o diff --git a/arch/sh/drivers/pci/ops-titan.c b/arch/sh/drivers/pci/ops-titan.c new file mode 100644 index 000000000000..f76e4e963ac1 --- /dev/null +++ b/arch/sh/drivers/pci/ops-titan.c @@ -0,0 +1,84 @@ +/* + * arch/sh/drivers/pci/ops-titan.c + * + * Ported to new API by Paul Mundt + * + * Modified from ops-snapgear.c written by David McCullough + * Highly leveraged from pci-bigsur.c, written by Dustin McIntire. + * + * May be copied or modified under the terms of the GNU General Public + * License. See linux/COPYING for more information. + * + * PCI initialization for the Titan boards + */ + +#include +#include +#include +#include +#include +#include +#include +#include "pci-sh7751.h" + +int __init pcibios_map_platform_irq(u8 slot, u8 pin) +{ + int irq = -1; + + switch (slot) { + case 0: irq = TITAN_IRQ_WAN; break; /* eth0 (WAN) */ + case 1: irq = TITAN_IRQ_LAN; break; /* eth1 (LAN) */ + case 2: irq = TITAN_IRQ_MPCIA; break; /* mPCI A */ + case 3: irq = TITAN_IRQ_MPCIB; break; /* mPCI B */ + case 4: irq = TITAN_IRQ_USB; break; /* USB */ + default: + printk(KERN_INFO "PCI: Bad IRQ mapping request for slot %d\n", slot); + return -1; + } + + printk("PCI: Mapping TITAN IRQ for slot %d, pin %c to irq %d\n", + slot, pin - 1 + 'A', irq); + + return irq; +} + +static struct resource sh7751_io_resource = { + .name = "SH7751_IO", + .start = SH7751_PCI_IO_BASE, + .end = SH7751_PCI_IO_BASE + SH7751_PCI_IO_SIZE - 1, + .flags = IORESOURCE_IO +}; + +static struct resource sh7751_mem_resource = { + .name = "SH7751_mem", + .start = SH7751_PCI_MEMORY_BASE, + .end = SH7751_PCI_MEMORY_BASE + SH7751_PCI_MEM_SIZE - 1, + .flags = IORESOURCE_MEM +}; + +extern struct pci_ops sh7751_pci_ops; + +struct pci_channel board_pci_channels[] = { + { &sh7751_pci_ops, &sh7751_io_resource, &sh7751_mem_resource, 0, 0xff }, + { NULL, NULL, NULL, 0, 0 }, +}; +EXPORT_SYMBOL(board_pci_channels); + +static struct sh7751_pci_address_map sh7751_pci_map = { + .window0 = { + .base = SH7751_CS2_BASE_ADDR, + .size = SH7751_MEM_REGION_SIZE*2, /* cs2 and cs3 */ + }, + + .window1 = { + .base = SH7751_CS2_BASE_ADDR, + .size = SH7751_MEM_REGION_SIZE*2, + }, + + .flags = SH7751_PCIC_NO_RESET, +}; + +int __init pcibios_init_platform(void) +{ + return sh7751_pcic_init(&sh7751_pci_map); +} diff --git a/arch/sh/drivers/pci/pci.c b/arch/sh/drivers/pci/pci.c index 3d546ba329cf..1f5e23e8b163 100644 --- a/arch/sh/drivers/pci/pci.c +++ b/arch/sh/drivers/pci/pci.c @@ -1,21 +1,25 @@ -/* arch/sh/kernel/pci.c - * $Id: pci.c,v 1.1 2003/08/24 19:15:45 lethal Exp $ +/* + * arch/sh/drivers/pci/pci.c * * Copyright (c) 2002 M. R. Brown - * - * + * Copyright (c) 2004, 2005 Paul Mundt + * * These functions are collected here to reduce duplication of common * code amongst the many platform-specific PCI support code files. - * + * * These routines require the following board-specific routines: * void pcibios_fixup_irqs(); * * See include/asm-sh/pci.h for more information. + * + * 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 static int __init pcibios_init(void) { @@ -26,9 +30,8 @@ static int __init pcibios_init(void) #ifdef CONFIG_PCI_AUTO /* assign resources */ busno = 0; - for (p = board_pci_channels; p->pci_ops != NULL; p++) { + for (p = board_pci_channels; p->pci_ops != NULL; p++) busno = pciauto_assign_resources(busno, p) + 1; - } #endif /* scan the buses */ @@ -61,13 +64,17 @@ pcibios_update_resource(struct pci_dev *dev, struct resource *root, new |= PCI_ROM_ADDRESS_ENABLE; reg = dev->rom_base_reg; } else { - /* Somebody might have asked allocation of a non-standard resource */ + /* + * Somebody might have asked allocation of a non-standard + * resource + */ return; } - + pci_write_config_dword(dev, reg, new); pci_read_config_dword(dev, reg, &check); - if ((new ^ check) & ((new & PCI_BASE_ADDRESS_SPACE_IO) ? PCI_BASE_ADDRESS_IO_MASK : PCI_BASE_ADDRESS_MEM_MASK)) { + if ((new ^ check) & ((new & PCI_BASE_ADDRESS_SPACE_IO) ? + PCI_BASE_ADDRESS_IO_MASK : PCI_BASE_ADDRESS_MEM_MASK)) { printk(KERN_ERR "PCI: Error while updating region " "%s/%d (%08x != %08x)\n", pci_name(dev), resource, new, check); @@ -145,7 +152,8 @@ void pcibios_set_master(struct pci_dev *dev) lat = pcibios_max_latency; else return; - printk(KERN_INFO "PCI: Setting latency timer of device %s to %d\n", pci_name(dev), lat); + printk(KERN_INFO "PCI: Setting latency timer of device %s to %d\n", + pci_name(dev), lat); pci_write_config_byte(dev, PCI_LATENCY_TIMER, lat); } @@ -153,3 +161,29 @@ void __init pcibios_update_irq(struct pci_dev *dev, int irq) { pci_write_config_byte(dev, PCI_INTERRUPT_LINE, irq); } + +void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen) +{ + unsigned long start = pci_resource_start(dev, bar); + unsigned long len = pci_resource_len(dev, bar); + unsigned long flags = pci_resource_flags(dev, bar); + + if (!len || !start) + return NULL; + if (maxlen && len > maxlen) + len = maxlen; + if (flags & IORESOURCE_IO) + return ioport_map(start, len); + if (flags & IORESOURCE_MEM) + return ioremap(start, len); + + return NULL; +} + +void pci_iounmap(struct pci_dev *dev, void __iomem *addr) +{ + iounmap(addr); +} + +EXPORT_SYMBOL(pci_iomap); +EXPORT_SYMBOL(pci_iounmap); diff --git a/arch/sh/tools/mach-types b/arch/sh/tools/mach-types index c503ca072e11..01ae394a6599 100644 --- a/arch/sh/tools/mach-types +++ b/arch/sh/tools/mach-types @@ -26,3 +26,4 @@ EDOSK7705 SH_EDOSK7705 SH4202_MICRODEV SH_SH4202_MICRODEV SH03 SH_SH03 LANDISK SH_LANDISK +TITAN SH_TITAN diff --git a/include/asm-sh/titan.h b/include/asm-sh/titan.h new file mode 100644 index 000000000000..270a4f4bc8a9 --- /dev/null +++ b/include/asm-sh/titan.h @@ -0,0 +1,43 @@ +/* + * Platform defintions for Titan + */ + +#ifndef _ASM_SH_TITAN_TITAN_H +#define _ASM_SH_TITAN_TITAN_H + +#define __IO_PREFIX titan +#include + +/* IRQ assignments */ +#define TITAN_IRQ_WAN 2 /* eth0 (WAN) */ +#define TITAN_IRQ_LAN 5 /* eth1 (LAN) */ +#define TITAN_IRQ_MPCIA 8 /* mPCI A */ +#define TITAN_IRQ_MPCIB 11 /* mPCI B */ +#define TITAN_IRQ_USB 11 /* USB */ + +/* + * The external interrupt lines, these take up ints 0 - 15 inclusive + * depending on the priority for the interrupt. In fact the priority + * is the interrupt :-) + */ +#define IRL0_IRQ 0 +#define IRL0_IPR_ADDR INTC_IPRD +#define IRL0_IPR_POS 3 +#define IRL0_PRIORITY 8 + +#define IRL1_IRQ 1 +#define IRL1_IPR_ADDR INTC_IPRD +#define IRL1_IPR_POS 2 +#define IRL1_PRIORITY 8 + +#define IRL2_IRQ 2 +#define IRL2_IPR_ADDR INTC_IPRD +#define IRL2_IPR_POS 1 +#define IRL2_PRIORITY 8 + +#define IRL3_IRQ 3 +#define IRL3_IPR_ADDR INTC_IPRD +#define IRL3_IPR_POS 0 +#define IRL3_PRIORITY 8 + +#endif -- cgit v1.2.3 From 0c7b1df69c62209db19d1279dd882b37c04c5c2f Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Wed, 27 Sep 2006 15:08:07 +0900 Subject: sh: SH-4A Privileged Space Mapping Buffer (PMB) support. Add support for 32-bit physical addressing through the SH-4A Privileged Space Mapping Buffer (PMB). Signed-off-by: Paul Mundt --- arch/sh/mm/Makefile | 3 +- arch/sh/mm/pmb.c | 269 +++++++++++++++++++++++++++++++++++++++++++++++++++ include/asm-sh/mmu.h | 48 ++++++++- 3 files changed, 318 insertions(+), 2 deletions(-) create mode 100644 arch/sh/mm/pmb.c (limited to 'include') diff --git a/arch/sh/mm/Makefile b/arch/sh/mm/Makefile index 9489a1424644..f4e32b3d24dc 100644 --- a/arch/sh/mm/Makefile +++ b/arch/sh/mm/Makefile @@ -22,4 +22,5 @@ obj-$(CONFIG_CPU_SH4) += tlb-sh4.o ioremap.o obj-$(CONFIG_SH7705_CACHE_32KB) += pg-sh7705.o endif -obj-$(CONFIG_SH7705_CACHE_32KB) += cache-sh7705.o +obj-$(CONFIG_SH7705_CACHE_32KB) += cache-sh7705.o +obj-$(CONFIG_32BIT) += pmb.o diff --git a/arch/sh/mm/pmb.c b/arch/sh/mm/pmb.c new file mode 100644 index 000000000000..ff5bde745647 --- /dev/null +++ b/arch/sh/mm/pmb.c @@ -0,0 +1,269 @@ +/* + * arch/sh/mm/pmb.c + * + * Privileged Space Mapping Buffer (PMB) Support. + * + * Copyright (C) 2005 Paul Mundt + * + * P1/P2 Section mapping definitions from map32.h, which was: + * + * Copyright 2003 (c) Lineo Solutions,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 +#include +#include +#include +#include + +#define NR_PMB_ENTRIES 16 + +static kmem_cache_t *pmb_cache; +static unsigned long pmb_map; + +static struct pmb_entry pmb_init_map[] = { + /* vpn ppn flags (ub/sz/c/wt) */ + + /* P1 Section Mappings */ + { 0x80000000, 0x00000000, PMB_SZ_64M | PMB_C, }, + { 0x84000000, 0x04000000, PMB_SZ_64M | PMB_C, }, + { 0x88000000, 0x08000000, PMB_SZ_128M | PMB_C, }, + { 0x90000000, 0x10000000, PMB_SZ_64M | PMB_C, }, + { 0x94000000, 0x14000000, PMB_SZ_64M | PMB_C, }, + { 0x98000000, 0x18000000, PMB_SZ_64M | PMB_C, }, + + /* P2 Section Mappings */ + { 0xa0000000, 0x00000000, PMB_UB | PMB_SZ_64M | PMB_WT, }, + { 0xa4000000, 0x04000000, PMB_UB | PMB_SZ_64M | PMB_WT, }, + { 0xa8000000, 0x08000000, PMB_UB | PMB_SZ_128M | PMB_WT, }, + { 0xb0000000, 0x10000000, PMB_UB | PMB_SZ_64M | PMB_WT, }, + { 0xb4000000, 0x14000000, PMB_UB | PMB_SZ_64M | PMB_WT, }, + { 0xb8000000, 0x18000000, PMB_UB | PMB_SZ_64M | PMB_WT, }, +}; + +static inline unsigned long mk_pmb_entry(unsigned int entry) +{ + return (entry & PMB_E_MASK) << PMB_E_SHIFT; +} + +static inline unsigned long mk_pmb_addr(unsigned int entry) +{ + return mk_pmb_entry(entry) | PMB_ADDR; +} + +static inline unsigned long mk_pmb_data(unsigned int entry) +{ + return mk_pmb_entry(entry) | PMB_DATA; +} + +struct pmb_entry *pmb_alloc(unsigned long vpn, unsigned long ppn, + unsigned long flags) +{ + struct pmb_entry *pmbe; + + pmbe = kmem_cache_alloc(pmb_cache, GFP_KERNEL); + if (!pmbe) + return ERR_PTR(-ENOMEM); + + pmbe->vpn = vpn; + pmbe->ppn = ppn; + pmbe->flags = flags; + + return pmbe; +} + +void pmb_free(struct pmb_entry *pmbe) +{ + kmem_cache_free(pmb_cache, pmbe); +} + +/* + * Must be in P2 for __set_pmb_entry() + */ +int __set_pmb_entry(unsigned long vpn, unsigned long ppn, + unsigned long flags, int *entry) +{ + unsigned int pos = *entry; + + if (unlikely(pos == PMB_NO_ENTRY)) + pos = find_first_zero_bit(&pmb_map, NR_PMB_ENTRIES); + +repeat: + if (unlikely(pos > NR_PMB_ENTRIES)) + return -ENOSPC; + + if (test_and_set_bit(pos, &pmb_map)) { + pos = find_first_zero_bit(&pmb_map, NR_PMB_ENTRIES); + goto repeat; + } + + ctrl_outl(vpn | PMB_V, mk_pmb_addr(pos)); + +#ifdef CONFIG_SH_WRITETHROUGH + /* + * When we are in 32-bit address extended mode, CCR.CB becomes + * invalid, so care must be taken to manually adjust cacheable + * translations. + */ + if (likely(flags & PMB_C)) + flags |= PMB_WT; +#endif + + ctrl_outl(ppn | flags | PMB_V, mk_pmb_data(pos)); + + *entry = pos; + + return 0; +} + +void set_pmb_entry(struct pmb_entry *pmbe) +{ + jump_to_P2(); + __set_pmb_entry(pmbe->vpn, pmbe->ppn, pmbe->flags, &pmbe->entry); + back_to_P1(); +} + +void clear_pmb_entry(struct pmb_entry *pmbe) +{ + unsigned int entry = pmbe->entry; + unsigned long addr; + + /* + * Don't allow clearing of wired init entries, P1 or P2 access + * without a corresponding mapping in the PMB will lead to reset + * by the TLB. + */ + if (unlikely(entry < ARRAY_SIZE(pmb_init_map) || + entry >= NR_PMB_ENTRIES)) + return; + + jump_to_P2(); + + /* Clear V-bit */ + addr = mk_pmb_addr(entry); + ctrl_outl(ctrl_inl(addr) & ~PMB_V, addr); + + addr = mk_pmb_data(entry); + ctrl_outl(ctrl_inl(addr) & ~PMB_V, addr); + + back_to_P1(); + + clear_bit(entry, &pmb_map); +} + +static void pmb_cache_ctor(void *pmb, kmem_cache_t *cachep, unsigned long flags) +{ + memset(pmb, 0, sizeof(struct pmb_entry)); + + ((struct pmb_entry *)pmb)->entry = PMB_NO_ENTRY; +} + +static int __init pmb_init(void) +{ + unsigned int nr_entries = ARRAY_SIZE(pmb_init_map); + unsigned int entry; + + BUG_ON(unlikely(nr_entries >= NR_PMB_ENTRIES)); + + pmb_cache = kmem_cache_create("pmb", sizeof(struct pmb_entry), + 0, 0, pmb_cache_ctor, NULL); + BUG_ON(!pmb_cache); + + jump_to_P2(); + + /* + * Ordering is important, P2 must be mapped in the PMB before we + * can set PMB.SE, and P1 must be mapped before we jump back to + * P1 space. + */ + for (entry = 0; entry < nr_entries; entry++) { + struct pmb_entry *pmbe = pmb_init_map + entry; + + __set_pmb_entry(pmbe->vpn, pmbe->ppn, pmbe->flags, &entry); + } + + ctrl_outl(0, PMB_IRMCR); + + /* PMB.SE and UB[7] */ + ctrl_outl((1 << 31) | (1 << 7), PMB_PASCR); + + back_to_P1(); + + return 0; +} + +arch_initcall(pmb_init); + +#ifdef CONFIG_DEBUG_FS +static int pmb_seq_show(struct seq_file *file, void *iter) +{ + int i; + + seq_printf(file, "V: Valid, C: Cacheable, WT: Write-Through\n" + "CB: Copy-Back, B: Buffered, UB: Unbuffered\n"); + seq_printf(file, "ety vpn ppn size flags\n"); + + for (i = 0; i < NR_PMB_ENTRIES; i++) { + unsigned long addr, data; + unsigned int size; + char *sz_str = NULL; + + addr = ctrl_inl(mk_pmb_addr(i)); + data = ctrl_inl(mk_pmb_data(i)); + + size = data & PMB_SZ_MASK; + sz_str = (size == PMB_SZ_16M) ? " 16MB": + (size == PMB_SZ_64M) ? " 64MB": + (size == PMB_SZ_128M) ? "128MB": + "512MB"; + + /* 02: V 0x88 0x08 128MB C CB B */ + seq_printf(file, "%02d: %c 0x%02lx 0x%02lx %s %c %s %s\n", + i, ((addr & PMB_V) && (data & PMB_V)) ? 'V' : ' ', + (addr >> 24) & 0xff, (data >> 24) & 0xff, + sz_str, (data & PMB_C) ? 'C' : ' ', + (data & PMB_WT) ? "WT" : "CB", + (data & PMB_UB) ? "UB" : " B"); + } + + return 0; +} + +static int pmb_debugfs_open(struct inode *inode, struct file *file) +{ + return single_open(file, pmb_seq_show, NULL); +} + +static struct file_operations pmb_debugfs_fops = { + .owner = THIS_MODULE, + .open = pmb_debugfs_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; + +static int __init pmb_debugfs_init(void) +{ + struct dentry *dentry; + + dentry = debugfs_create_file("pmb", S_IFREG | S_IRUGO, + NULL, NULL, &pmb_debugfs_fops); + if (IS_ERR(dentry)) + return PTR_ERR(dentry); + + return 0; +} + +postcore_initcall(pmb_debugfs_init); +#endif diff --git a/include/asm-sh/mmu.h b/include/asm-sh/mmu.h index 72f07be6117f..91c884634276 100644 --- a/include/asm-sh/mmu.h +++ b/include/asm-sh/mmu.h @@ -25,5 +25,51 @@ typedef struct { typedef unsigned long mm_context_t; #endif /* CONFIG_MMU */ -#endif /* __MMH_H */ + +/* + * Privileged Space Mapping Buffer (PMB) definitions + */ +#define PMB_PASCR 0xff000070 +#define PMB_IRMCR 0xff000078 + +#define PMB_ADDR 0xf6100000 +#define PMB_DATA 0xf7100000 +#define PMB_ENTRY_MAX 16 +#define PMB_E_MASK 0x0000000f +#define PMB_E_SHIFT 8 + +#define PMB_SZ_16M 0x00000000 +#define PMB_SZ_64M 0x00000010 +#define PMB_SZ_128M 0x00000080 +#define PMB_SZ_512M 0x00000090 +#define PMB_SZ_MASK PMB_SZ_512M +#define PMB_C 0x00000008 +#define PMB_WT 0x00000001 +#define PMB_UB 0x00000200 +#define PMB_V 0x00000100 + +#define PMB_NO_ENTRY (-1) + +struct pmb_entry { + unsigned long vpn; + unsigned long ppn; + unsigned long flags; + + /* + * 0 .. NR_PMB_ENTRIES for specific entry selection, or + * PMB_NO_ENTRY to search for a free one + */ + int entry; +}; + +/* arch/sh/mm/pmb.c */ +int __set_pmb_entry(unsigned long vpn, unsigned long ppn, + unsigned long flags, int *entry); +void set_pmb_entry(struct pmb_entry *pmbe); +void clear_pmb_entry(struct pmb_entry *pmbe); +struct pmb_entry *pmb_alloc(unsigned long vpn, unsigned long ppn, + unsigned long flags); +void pmb_free(struct pmb_entry *pmbe); + +#endif /* __MMU_H */ -- cgit v1.2.3 From 26ff6c11ef38e08990c1e417c299246e6ab18ff7 Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Wed, 27 Sep 2006 15:13:36 +0900 Subject: sh: page table alloc cleanups and page fault optimizations. Cleanup of page table allocators, using generic folded PMD and PUD helpers. TLB flushing operations are moved to a more sensible spot. The page fault handler is also optimized slightly, we no longer waste cycles on IRQ disabling for flushing of the page from the ITLB, since we're already under CLI protection by the initial exception handler. Signed-off-by: Paul Mundt --- arch/sh/kernel/sys_sh.c | 2 +- arch/sh/mm/Makefile | 2 +- arch/sh/mm/consistent.c | 2 + arch/sh/mm/fault.c | 202 +++++++----------------------------- arch/sh/mm/init.c | 13 ++- arch/sh/mm/tlb-flush.c | 132 +++++++++++++++++++++++ include/asm-sh/cache.h | 8 -- include/asm-sh/cacheflush.h | 1 + include/asm-sh/cpu-sh3/cacheflush.h | 8 +- include/asm-sh/cpu-sh4/cacheflush.h | 29 +++--- include/asm-sh/page.h | 12 +-- include/asm-sh/pgalloc.h | 37 +------ include/asm-sh/pgtable.h | 80 +++++++++----- 13 files changed, 261 insertions(+), 267 deletions(-) create mode 100644 arch/sh/mm/tlb-flush.c (limited to 'include') diff --git a/arch/sh/kernel/sys_sh.c b/arch/sh/kernel/sys_sh.c index 917b2f32f260..d8bcd8a22327 100644 --- a/arch/sh/kernel/sys_sh.c +++ b/arch/sh/kernel/sys_sh.c @@ -21,7 +21,7 @@ #include #include #include - +#include #include #include diff --git a/arch/sh/mm/Makefile b/arch/sh/mm/Makefile index f4e32b3d24dc..d90906367c5f 100644 --- a/arch/sh/mm/Makefile +++ b/arch/sh/mm/Makefile @@ -12,7 +12,7 @@ obj-$(CONFIG_DMA_PAGE_OPS) += pg-dma.o obj-$(CONFIG_HUGETLB_PAGE) += hugetlbpage.o mmu-y := fault-nommu.o tlb-nommu.o pg-nommu.o -mmu-$(CONFIG_MMU) := fault.o clear_page.o copy_page.o +mmu-$(CONFIG_MMU) := fault.o clear_page.o copy_page.o tlb-flush.o obj-y += $(mmu-y) diff --git a/arch/sh/mm/consistent.c b/arch/sh/mm/consistent.c index ee73e30263af..c81e6b67ad30 100644 --- a/arch/sh/mm/consistent.c +++ b/arch/sh/mm/consistent.c @@ -9,6 +9,8 @@ */ #include #include +#include +#include #include void *consistent_alloc(gfp_t gfp, size_t size, dma_addr_t *handle) diff --git a/arch/sh/mm/fault.c b/arch/sh/mm/fault.c index 364181f27b79..7a03ffe6dadd 100644 --- a/arch/sh/mm/fault.c +++ b/arch/sh/mm/fault.c @@ -1,33 +1,20 @@ -/* $Id: fault.c,v 1.14 2004/01/13 05:52:11 kkojima Exp $ +/* + * Page fault handler for SH with an MMU. * - * linux/arch/sh/mm/fault.c * Copyright (C) 1999 Niibe Yutaka * Copyright (C) 2003 Paul Mundt * * Based on linux/arch/i386/mm/fault.c: * Copyright (C) 1995 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. */ - -#include -#include #include -#include -#include -#include -#include -#include #include -#include -#include -#include -#include - #include -#include -#include -#include #include -#include #include extern void die(const char *,struct pt_regs *,long); @@ -187,14 +174,25 @@ do_sigbus: goto no_context; } +#ifdef CONFIG_SH_STORE_QUEUES /* - * Called with interrupt disabled. + * This is a special case for the SH-4 store queues, as pages for this + * space still need to be faulted in before it's possible to flush the + * store queue cache for writeout to the remapped region. + */ +#define P3_ADDR_MAX (P4SEG_STORE_QUE + 0x04000000) +#else +#define P3_ADDR_MAX P4SEG +#endif + +/* + * Called with interrupts disabled. */ asmlinkage int __do_page_fault(struct pt_regs *regs, unsigned long writeaccess, unsigned long address) { - unsigned long addrmax = P4SEG; pgd_t *pgd; + pud_t *pud; pmd_t *pmd; pte_t *pte; pte_t entry; @@ -207,31 +205,36 @@ asmlinkage int __do_page_fault(struct pt_regs *regs, unsigned long writeaccess, kgdb_bus_err_hook(); #endif -#ifdef CONFIG_SH_STORE_QUEUES - addrmax = P4SEG_STORE_QUE + 0x04000000; -#endif - - if (address >= P3SEG && address < addrmax) { + /* + * We don't take page faults for P1, P2, and parts of P4, these + * are always mapped, whether it be due to legacy behaviour in + * 29-bit mode, or due to PMB configuration in 32-bit mode. + */ + if (address >= P3SEG && address < P3_ADDR_MAX) pgd = pgd_offset_k(address); - mm = NULL; - } else if (address >= TASK_SIZE) - return 1; - else if (!(mm = current->mm)) - return 1; - else - pgd = pgd_offset(mm, address); + else { + if (unlikely(address >= TASK_SIZE || !current->mm)) + return 1; + + pgd = pgd_offset(current->mm, address); + } - pmd = pmd_offset(pgd, address); + pud = pud_offset(pgd, address); + if (pud_none_or_clear_bad(pud)) + return 1; + pmd = pmd_offset(pud, address); if (pmd_none_or_clear_bad(pmd)) return 1; + if (mm) pte = pte_offset_map_lock(mm, pmd, address, &ptl); else pte = pte_offset_kernel(pmd, address); entry = *pte; - if (pte_none(entry) || pte_not_present(entry) - || (writeaccess && !pte_write(entry))) + if (unlikely(pte_none(entry) || pte_not_present(entry))) + goto unlock; + if (unlikely(writeaccess && !pte_write(entry))) goto unlock; if (writeaccess) @@ -243,13 +246,7 @@ asmlinkage int __do_page_fault(struct pt_regs *regs, unsigned long writeaccess, * ITLB is not affected by "ldtlb" instruction. * So, we need to flush the entry by ourselves. */ - - { - unsigned long flags; - local_irq_save(flags); - __flush_tlb_page(get_asid(), address&PAGE_MASK); - local_irq_restore(flags); - } + __flush_tlb_page(get_asid(), address & PAGE_MASK); #endif set_pte(pte, entry); @@ -260,122 +257,3 @@ unlock: pte_unmap_unlock(pte, ptl); return ret; } - -void flush_tlb_page(struct vm_area_struct *vma, unsigned long page) -{ - if (vma->vm_mm && vma->vm_mm->context != NO_CONTEXT) { - unsigned long flags; - unsigned long asid; - unsigned long saved_asid = MMU_NO_ASID; - - asid = vma->vm_mm->context & MMU_CONTEXT_ASID_MASK; - page &= PAGE_MASK; - - local_irq_save(flags); - if (vma->vm_mm != current->mm) { - saved_asid = get_asid(); - set_asid(asid); - } - __flush_tlb_page(asid, page); - if (saved_asid != MMU_NO_ASID) - set_asid(saved_asid); - local_irq_restore(flags); - } -} - -void flush_tlb_range(struct vm_area_struct *vma, unsigned long start, - unsigned long end) -{ - struct mm_struct *mm = vma->vm_mm; - - if (mm->context != NO_CONTEXT) { - unsigned long flags; - int size; - - local_irq_save(flags); - size = (end - start + (PAGE_SIZE - 1)) >> PAGE_SHIFT; - if (size > (MMU_NTLB_ENTRIES/4)) { /* Too many TLB to flush */ - mm->context = NO_CONTEXT; - if (mm == current->mm) - activate_context(mm); - } else { - unsigned long asid = mm->context&MMU_CONTEXT_ASID_MASK; - unsigned long saved_asid = MMU_NO_ASID; - - start &= PAGE_MASK; - end += (PAGE_SIZE - 1); - end &= PAGE_MASK; - if (mm != current->mm) { - saved_asid = get_asid(); - set_asid(asid); - } - while (start < end) { - __flush_tlb_page(asid, start); - start += PAGE_SIZE; - } - if (saved_asid != MMU_NO_ASID) - set_asid(saved_asid); - } - local_irq_restore(flags); - } -} - -void flush_tlb_kernel_range(unsigned long start, unsigned long end) -{ - unsigned long flags; - int size; - - local_irq_save(flags); - size = (end - start + (PAGE_SIZE - 1)) >> PAGE_SHIFT; - if (size > (MMU_NTLB_ENTRIES/4)) { /* Too many TLB to flush */ - flush_tlb_all(); - } else { - unsigned long asid = init_mm.context&MMU_CONTEXT_ASID_MASK; - unsigned long saved_asid = get_asid(); - - start &= PAGE_MASK; - end += (PAGE_SIZE - 1); - end &= PAGE_MASK; - set_asid(asid); - while (start < end) { - __flush_tlb_page(asid, start); - start += PAGE_SIZE; - } - set_asid(saved_asid); - } - local_irq_restore(flags); -} - -void flush_tlb_mm(struct mm_struct *mm) -{ - /* Invalidate all TLB of this process. */ - /* Instead of invalidating each TLB, we get new MMU context. */ - if (mm->context != NO_CONTEXT) { - unsigned long flags; - - local_irq_save(flags); - mm->context = NO_CONTEXT; - if (mm == current->mm) - activate_context(mm); - local_irq_restore(flags); - } -} - -void flush_tlb_all(void) -{ - unsigned long flags, status; - - /* - * Flush all the TLB. - * - * Write to the MMU control register's bit: - * TF-bit for SH-3, TI-bit for SH-4. - * It's same position, bit #2. - */ - local_irq_save(flags); - status = ctrl_inl(MMUCR); - status |= 0x04; - ctrl_outl(status, MMUCR); - ctrl_barrier(); - local_irq_restore(flags); -} diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c index 8ea27ca4b700..d1a979eab656 100644 --- a/arch/sh/mm/init.c +++ b/arch/sh/mm/init.c @@ -80,6 +80,7 @@ void show_mem(void) static void set_pte_phys(unsigned long addr, unsigned long phys, pgprot_t prot) { pgd_t *pgd; + pud_t *pud; pmd_t *pmd; pte_t *pte; @@ -89,7 +90,17 @@ static void set_pte_phys(unsigned long addr, unsigned long phys, pgprot_t prot) return; } - pmd = pmd_offset(pgd, addr); + pud = pud_offset(pgd, addr); + if (pud_none(*pud)) { + pmd = (pmd_t *)get_zeroed_page(GFP_ATOMIC); + set_pud(pud, __pud(__pa(pmd) | _KERNPG_TABLE | _PAGE_USER)); + if (pmd != pmd_offset(pud, 0)) { + pud_ERROR(*pud); + return; + } + } + + pmd = pmd_offset(pud, addr); if (pmd_none(*pmd)) { pte = (pte_t *)get_zeroed_page(GFP_ATOMIC); set_pmd(pmd, __pmd(__pa(pte) | _KERNPG_TABLE | _PAGE_USER)); diff --git a/arch/sh/mm/tlb-flush.c b/arch/sh/mm/tlb-flush.c new file mode 100644 index 000000000000..fd7e42bcaa40 --- /dev/null +++ b/arch/sh/mm/tlb-flush.c @@ -0,0 +1,132 @@ +/* + * TLB flushing operations for SH with an MMU. + * + * Copyright (C) 1999 Niibe Yutaka + * Copyright (C) 2003 Paul Mundt + * + * 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 + +void flush_tlb_page(struct vm_area_struct *vma, unsigned long page) +{ + if (vma->vm_mm && vma->vm_mm->context != NO_CONTEXT) { + unsigned long flags; + unsigned long asid; + unsigned long saved_asid = MMU_NO_ASID; + + asid = vma->vm_mm->context & MMU_CONTEXT_ASID_MASK; + page &= PAGE_MASK; + + local_irq_save(flags); + if (vma->vm_mm != current->mm) { + saved_asid = get_asid(); + set_asid(asid); + } + __flush_tlb_page(asid, page); + if (saved_asid != MMU_NO_ASID) + set_asid(saved_asid); + local_irq_restore(flags); + } +} + +void flush_tlb_range(struct vm_area_struct *vma, unsigned long start, + unsigned long end) +{ + struct mm_struct *mm = vma->vm_mm; + + if (mm->context != NO_CONTEXT) { + unsigned long flags; + int size; + + local_irq_save(flags); + size = (end - start + (PAGE_SIZE - 1)) >> PAGE_SHIFT; + if (size > (MMU_NTLB_ENTRIES/4)) { /* Too many TLB to flush */ + mm->context = NO_CONTEXT; + if (mm == current->mm) + activate_context(mm); + } else { + unsigned long asid = mm->context&MMU_CONTEXT_ASID_MASK; + unsigned long saved_asid = MMU_NO_ASID; + + start &= PAGE_MASK; + end += (PAGE_SIZE - 1); + end &= PAGE_MASK; + if (mm != current->mm) { + saved_asid = get_asid(); + set_asid(asid); + } + while (start < end) { + __flush_tlb_page(asid, start); + start += PAGE_SIZE; + } + if (saved_asid != MMU_NO_ASID) + set_asid(saved_asid); + } + local_irq_restore(flags); + } +} + +void flush_tlb_kernel_range(unsigned long start, unsigned long end) +{ + unsigned long flags; + int size; + + local_irq_save(flags); + size = (end - start + (PAGE_SIZE - 1)) >> PAGE_SHIFT; + if (size > (MMU_NTLB_ENTRIES/4)) { /* Too many TLB to flush */ + flush_tlb_all(); + } else { + unsigned long asid = init_mm.context&MMU_CONTEXT_ASID_MASK; + unsigned long saved_asid = get_asid(); + + start &= PAGE_MASK; + end += (PAGE_SIZE - 1); + end &= PAGE_MASK; + set_asid(asid); + while (start < end) { + __flush_tlb_page(asid, start); + start += PAGE_SIZE; + } + set_asid(saved_asid); + } + local_irq_restore(flags); +} + +void flush_tlb_mm(struct mm_struct *mm) +{ + /* Invalidate all TLB of this process. */ + /* Instead of invalidating each TLB, we get new MMU context. */ + if (mm->context != NO_CONTEXT) { + unsigned long flags; + + local_irq_save(flags); + mm->context = NO_CONTEXT; + if (mm == current->mm) + activate_context(mm); + local_irq_restore(flags); + } +} + +void flush_tlb_all(void) +{ + unsigned long flags, status; + + /* + * Flush all the TLB. + * + * Write to the MMU control register's bit: + * TF-bit for SH-3, TI-bit for SH-4. + * It's same position, bit #2. + */ + local_irq_save(flags); + status = ctrl_inl(MMUCR); + status |= 0x04; + ctrl_outl(status, MMUCR); + ctrl_barrier(); + local_irq_restore(flags); +} diff --git a/include/asm-sh/cache.h b/include/asm-sh/cache.h index 33f13367054b..e3a180cf5062 100644 --- a/include/asm-sh/cache.h +++ b/include/asm-sh/cache.h @@ -10,7 +10,6 @@ #ifdef __KERNEL__ #include -#include #define SH_CACHE_VALID 1 #define SH_CACHE_UPDATED 2 @@ -49,12 +48,5 @@ struct cache_info { unsigned long flags; }; -/* Flush (write-back only) a region (smaller than a page) */ -extern void __flush_wback_region(void *start, int size); -/* Flush (write-back & invalidate) a region (smaller than a page) */ -extern void __flush_purge_region(void *start, int size); -/* Flush (invalidate only) a region (smaller than a page) */ -extern void __flush_invalidate_region(void *start, int size); - #endif /* __KERNEL__ */ #endif /* __ASM_SH_CACHE_H */ diff --git a/include/asm-sh/cacheflush.h b/include/asm-sh/cacheflush.h index 9dfb33edb008..92930b4a40d4 100644 --- a/include/asm-sh/cacheflush.h +++ b/include/asm-sh/cacheflush.h @@ -2,6 +2,7 @@ #define __ASM_SH_CACHEFLUSH_H #ifdef __KERNEL__ +#include #include /* Flush (write-back only) a region (smaller than a page) */ diff --git a/include/asm-sh/cpu-sh3/cacheflush.h b/include/asm-sh/cpu-sh3/cacheflush.h index f51aed00c68f..db0cb071ea8e 100644 --- a/include/asm-sh/cpu-sh3/cacheflush.h +++ b/include/asm-sh/cpu-sh3/cacheflush.h @@ -10,7 +10,7 @@ #ifndef __ASM_CPU_SH3_CACHEFLUSH_H #define __ASM_CPU_SH3_CACHEFLUSH_H -/* +/* * Cache flushing: * * - flush_cache_all() flushes entire cache @@ -35,10 +35,6 @@ /* 32KB cache, 4kb PAGE sizes need to check bit 12 */ #define CACHE_ALIAS 0x00001000 -struct page; -struct mm_struct; -struct vm_area_struct; - extern void flush_cache_all(void); extern void flush_cache_mm(struct mm_struct *mm); extern void flush_cache_range(struct vm_area_struct *vma, unsigned long start, @@ -79,8 +75,6 @@ extern void flush_icache_page(struct vm_area_struct *vma, struct page *page); #define p3_cache_init() do { } while (0) -#define HAVE_ARCH_UNMAPPED_AREA - #endif #endif /* __ASM_CPU_SH3_CACHEFLUSH_H */ diff --git a/include/asm-sh/cpu-sh4/cacheflush.h b/include/asm-sh/cpu-sh4/cacheflush.h index ea58c4c5944d..a95fc951aff6 100644 --- a/include/asm-sh/cpu-sh4/cacheflush.h +++ b/include/asm-sh/cpu-sh4/cacheflush.h @@ -16,30 +16,26 @@ * caching; in which case they're only semi-broken), * so we need them. */ -struct page; -struct mm_struct; -struct vm_area_struct; - -extern void flush_cache_all(void); -extern void flush_cache_mm(struct mm_struct *mm); -extern void flush_cache_range(struct vm_area_struct *vma, unsigned long start, - unsigned long end); -extern void flush_cache_page(struct vm_area_struct *vma, unsigned long addr, unsigned long pfn); -extern void flush_dcache_page(struct page *pg); +void flush_cache_all(void); +void flush_cache_mm(struct mm_struct *mm); +void flush_cache_range(struct vm_area_struct *vma, unsigned long start, + unsigned long end); +void flush_cache_page(struct vm_area_struct *vma, unsigned long addr, + unsigned long pfn); +void flush_dcache_page(struct page *pg); #define flush_dcache_mmap_lock(mapping) do { } while (0) #define flush_dcache_mmap_unlock(mapping) do { } while (0) -extern void flush_icache_range(unsigned long start, unsigned long end); -extern void flush_cache_sigtramp(unsigned long addr); -extern void flush_icache_user_range(struct vm_area_struct *vma, - struct page *page, unsigned long addr, - int len); +void flush_icache_range(unsigned long start, unsigned long end); +void flush_cache_sigtramp(unsigned long addr); +void flush_icache_user_range(struct vm_area_struct *vma, struct page *page, + unsigned long addr, int len); #define flush_icache_page(vma,pg) do { } while (0) /* Initialization of P3 area for copy_user_page */ -extern void p3_cache_init(void); +void p3_cache_init(void); #define PG_mapped PG_arch_1 @@ -57,4 +53,3 @@ static inline int remap_area_pages(unsigned long addr, unsigned long phys_addr, } #endif /* CONFIG_MMU */ #endif /* __ASM_CPU_SH4_CACHEFLUSH_H */ - diff --git a/include/asm-sh/page.h b/include/asm-sh/page.h index 4811d410d123..51d7281a546a 100644 --- a/include/asm-sh/page.h +++ b/include/asm-sh/page.h @@ -41,7 +41,8 @@ extern void (*copy_page)(void *to, void *from); extern void clear_page_slow(void *to); extern void copy_page_slow(void *to, void *from); -#if defined(CONFIG_SH7705_CACHE_32KB) && defined(CONFIG_MMU) +#if defined(CONFIG_MMU) && (defined(CONFIG_CPU_SH4) || \ + defined(CONFIG_SH7705_CACHE_32KB)) struct page; extern void clear_user_page(void *to, unsigned long address, struct page *pg); extern void copy_user_page(void *to, void *from, unsigned long address, struct page *pg); @@ -50,29 +51,20 @@ extern void __copy_user_page(void *to, void *from, void *orig_to); #elif defined(CONFIG_CPU_SH2) || defined(CONFIG_CPU_SH3) || !defined(CONFIG_MMU) #define clear_user_page(page, vaddr, pg) clear_page(page) #define copy_user_page(to, from, vaddr, pg) copy_page(to, from) -#elif defined(CONFIG_CPU_SH4) -struct page; -extern void clear_user_page(void *to, unsigned long address, struct page *pg); -extern void copy_user_page(void *to, void *from, unsigned long address, struct page *pg); -extern void __clear_user_page(void *to, void *orig_to); -extern void __copy_user_page(void *to, void *from, void *orig_to); #endif /* * 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; #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) } ) diff --git a/include/asm-sh/pgalloc.h b/include/asm-sh/pgalloc.h index f4f233f7a4f5..e841465ab4d2 100644 --- a/include/asm-sh/pgalloc.h +++ b/include/asm-sh/pgalloc.h @@ -1,15 +1,6 @@ #ifndef __ASM_SH_PGALLOC_H #define __ASM_SH_PGALLOC_H -#include -#include -#include - -#define pgd_quicklist ((unsigned long *)0) -#define pmd_quicklist ((unsigned long *)0) -#define pte_quicklist ((unsigned long *)0) -#define pgtable_cache_size 0L - #define pmd_populate_kernel(mm, pmd, pte) \ set_pmd(pmd, __pmd(_PAGE_TABLE + __pa(pte))) @@ -24,38 +15,24 @@ static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd, */ static inline pgd_t *pgd_alloc(struct mm_struct *mm) { - unsigned int pgd_size = (USER_PTRS_PER_PGD * sizeof(pgd_t)); - pgd_t *pgd = (pgd_t *)kmalloc(pgd_size, GFP_KERNEL); - - if (pgd) - memset(pgd, 0, pgd_size); - - return pgd; + return (pgd_t *)__get_free_page(GFP_KERNEL | __GFP_REPEAT | __GFP_ZERO); } static inline void pgd_free(pgd_t *pgd) { - kfree(pgd); + free_page((unsigned long)pgd); } static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address) { - pte_t *pte; - - pte = (pte_t *) __get_free_page(GFP_KERNEL | __GFP_REPEAT | __GFP_ZERO); - - return pte; + return (pte_t *)__get_free_page(GFP_KERNEL | __GFP_REPEAT | __GFP_ZERO); } static inline struct page *pte_alloc_one(struct mm_struct *mm, unsigned long address) { - struct page *pte; - - pte = alloc_pages(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO, 0); - - return pte; + return alloc_page(GFP_KERNEL | __GFP_REPEAT | __GFP_ZERO); } static inline void pte_free_kernel(pte_t *pte) @@ -75,14 +52,8 @@ static inline void pte_free(struct page *pte) * inside the pgd, so has no extra memory associated with it. */ -#define pmd_alloc_one(mm, addr) ({ BUG(); ((pmd_t *)2); }) #define pmd_free(x) do { } while (0) #define __pmd_free_tlb(tlb,x) do { } while (0) -#define pgd_populate(mm, pmd, pte) BUG() #define check_pgt_cache() do { } while (0) -#ifdef CONFIG_CPU_SH4 -#define PG_mapped PG_arch_1 -#endif - #endif /* __ASM_SH_PGALLOC_H */ diff --git a/include/asm-sh/pgtable.h b/include/asm-sh/pgtable.h index 40d41a78041e..9728b58f7c13 100644 --- a/include/asm-sh/pgtable.h +++ b/include/asm-sh/pgtable.h @@ -1,42 +1,42 @@ -#ifndef __ASM_SH_PGTABLE_H -#define __ASM_SH_PGTABLE_H - -#include - /* + * This file contains the functions and defines necessary to modify and + * use the SuperH page table tree. + * * Copyright (C) 1999 Niibe Yutaka - * Copyright (C) 2002, 2003, 2004 Paul Mundt + * Copyright (C) 2002 - 2005 Paul Mundt + * + * 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 __ASM_SH_PGTABLE_H +#define __ASM_SH_PGTABLE_H -#include +#include +#include + +#define PTRS_PER_PGD 1024 -/* - * This file contains the functions and defines necessary to modify and use - * the SuperH page table tree. - */ #ifndef __ASSEMBLY__ -#include #include #include -#include extern pgd_t swapper_pg_dir[PTRS_PER_PGD]; extern void paging_init(void); -/* - * Basically we have the same two-level (which is the logical three level - * Linux page table layout folded) page tables as the i386. - */ - /* * ZERO_PAGE is a global shared page that is always zero: used * for zero-mapped memory areas etc.. */ -extern unsigned long empty_zero_page[1024]; +extern unsigned long empty_zero_page[PAGE_SIZE / sizeof(unsigned long)]; #define ZERO_PAGE(vaddr) (virt_to_page(empty_zero_page)) #endif /* !__ASSEMBLY__ */ +/* traditional two-level paging structure */ +#define PGDIR_SHIFT 22 +#define PTRS_PER_PMD 1 +#define PTRS_PER_PTE 1024 #define PMD_SIZE (1UL << PMD_SHIFT) #define PMD_MASK (~(PMD_SIZE-1)) #define PGDIR_SIZE (1UL << PGDIR_SHIFT) @@ -47,7 +47,6 @@ extern unsigned long empty_zero_page[1024]; #define PTE_PHYS_MASK 0x1ffff000 -#ifndef __ASSEMBLY__ /* * First 1MB map is used by fixed purpose. * Currently only 4-enty (16kB) is used (see arch/sh/mm/cache.c) @@ -65,7 +64,7 @@ extern unsigned long empty_zero_page[1024]; #define _PAGE_SZ1 0x080 /* SZ1-bit : Size of page (on SH-4) */ #define _PAGE_PRESENT 0x100 /* V-bit : page is valid */ #define _PAGE_PROTNONE 0x200 /* software: if not present */ -#define _PAGE_ACCESSED 0x400 /* software: page referenced */ +#define _PAGE_ACCESSED 0x400 /* software: page referenced */ #define _PAGE_U0_SHARED 0x800 /* software: page is shared in user space */ #define _PAGE_FILE _PAGE_WT /* software: pagecache or swap? */ @@ -83,7 +82,6 @@ extern unsigned long empty_zero_page[1024]; #define _PAGE_PCC_ATR8 0x60000000 /* Attribute Memory space, 8 bit bus */ #define _PAGE_PCC_ATR16 0x60000001 /* Attribute Memory space, 6 bit bus */ - /* Mask which drop software flags * We also drop WT bit since it is used for _PAGE_FILE * bit in this implementation. @@ -115,6 +113,8 @@ extern unsigned long empty_zero_page[1024]; #define _KERNPG_TABLE (_PAGE_PRESENT | _PAGE_RW | _PAGE_ACCESSED | _PAGE_DIRTY) #define _PAGE_CHG_MASK (PTE_MASK | _PAGE_ACCESSED | _PAGE_CACHABLE | _PAGE_DIRTY | _PAGE_SHARED) +#ifndef __ASSEMBLY__ + #ifdef CONFIG_MMU #define PAGE_NONE __pgprot(_PAGE_PROTNONE | _PAGE_CACHABLE |_PAGE_ACCESSED | _PAGE_FLAGS_HARD) #define PAGE_SHARED __pgprot(_PAGE_PRESENT | _PAGE_RW | _PAGE_USER | _PAGE_CACHABLE |_PAGE_ACCESSED | _PAGE_SHARED | _PAGE_FLAGS_HARD) @@ -137,12 +137,13 @@ extern unsigned long empty_zero_page[1024]; #define PAGE_KERNEL_PCC __pgprot(0) #endif +#endif /* __ASSEMBLY__ */ + /* * As i386 and MIPS, SuperH can't do page protection for execute, and * considers that the same as a read. Also, write permissions imply - * read permissions. This is the closest we can get.. + * read permissions. This is the closest we can get.. */ - #define __P000 PAGE_NONE #define __P001 PAGE_READONLY #define __P010 PAGE_COPY @@ -161,6 +162,26 @@ extern unsigned long empty_zero_page[1024]; #define __S110 PAGE_SHARED #define __S111 PAGE_SHARED +#ifndef __ASSEMBLY__ + +/* + * Certain architectures need to do special things when PTEs + * within a page table are directly modified. Thus, the following + * hook is made available. + */ +#define set_pte(pteptr, pteval) (*(pteptr) = pteval) +#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval) + +/* + * (pmds are folded into pgds so this doesn't get actually called, + * but the define is needed for a generic inline function.) + */ +#define set_pmd(pmdptr, pmdval) (*(pmdptr) = pmdval) + +#define pte_pfn(x) ((unsigned long)(((x).pte >> PAGE_SHIFT))) +#define pfn_pte(pfn, prot) __pte(((pfn) << PAGE_SHIFT) | pgprot_val(prot)) +#define pfn_pmd(pfn, prot) __pmd(((pfn) << PAGE_SHIFT) | pgprot_val(prot)) + #define pte_none(x) (!pte_val(x)) #define pte_present(x) (pte_val(x) & (_PAGE_PRESENT | _PAGE_PROTNONE)) #define pte_clear(mm,addr,xp) do { set_pte_at(mm, addr, xp, __pte(0)); } while (0) @@ -171,7 +192,7 @@ extern unsigned long empty_zero_page[1024]; #define pmd_bad(x) ((pmd_val(x) & (~PAGE_MASK & ~_PAGE_USER)) != _KERNPG_TABLE) #define pages_to_mb(x) ((x) >> (20-PAGE_SHIFT)) -#define pte_page(x) phys_to_page(pte_val(x)&PTE_PHYS_MASK) +#define pte_page(x) phys_to_page(pte_val(x)&PTE_PHYS_MASK) /* * The following only work if pte_present() is true. @@ -248,6 +269,11 @@ static inline pte_t pte_modify(pte_t pte, pgprot_t newprot) #define pte_unmap(pte) do { } while (0) #define pte_unmap_nested(pte) do { } while (0) +#define pte_ERROR(e) \ + printk("%s:%d: bad pte %08lx.\n", __FILE__, __LINE__, pte_val(e)) +#define pgd_ERROR(e) \ + printk("%s:%d: bad pgd %08lx.\n", __FILE__, __LINE__, pgd_val(e)) + struct vm_area_struct; extern void update_mmu_cache(struct vm_area_struct * vma, unsigned long address, pte_t pte); @@ -272,8 +298,6 @@ extern void update_mmu_cache(struct vm_area_struct * vma, typedef pte_t *pte_addr_t; -#endif /* !__ASSEMBLY__ */ - #define kern_addr_valid(addr) (1) #define io_remap_pfn_range(vma, vaddr, pfn, size, prot) \ @@ -301,5 +325,7 @@ extern pte_t ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, pte_t #include +#endif /* !__ASSEMBLY__ */ + #endif /* __ASM_SH_PAGE_H */ -- cgit v1.2.3 From d7cdc9e8ac82c43fdcd4fde6b5b53d2dcba7f707 Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Wed, 27 Sep 2006 15:16:42 +0900 Subject: sh: ioremap() overhaul. ioremap() overhaul. Add support for transparent PMB mapping, get rid of p3_ioremap(), etc. Also drop ioremap() and iounmap() routines from the machvec, as everyone can use the generic ioremap() API instead. For PCI memory apertures and other special cases, use the pci_iomap() API, as boards are already required to get the mapping right there. Signed-off-by: Paul Mundt --- arch/sh/boards/landisk/io.c | 236 ++++++++++++---------------- arch/sh/boards/landisk/setup.c | 237 ++++++++++++----------------- arch/sh/boards/renesas/hs7751rvoip/io.c | 9 -- arch/sh/boards/renesas/hs7751rvoip/setup.c | 1 - arch/sh/boards/renesas/rts7751r2d/io.c | 9 -- arch/sh/boards/renesas/rts7751r2d/mach.c | 2 - arch/sh/boards/titan/io.c | 9 +- arch/sh/boards/titan/setup.c | 1 - arch/sh/drivers/pci/pci.c | 21 ++- arch/sh/kernel/cf-enabler.c | 5 +- arch/sh/kernel/sh_ksyms.c | 1 - arch/sh/mm/Makefile | 7 +- arch/sh/mm/pmb.c | 145 +++++++++++++++++- include/asm-sh/landisk/iodata_landisk.h | 3 + include/asm-sh/mmu.h | 11 +- 15 files changed, 374 insertions(+), 323 deletions(-) (limited to 'include') diff --git a/arch/sh/boards/landisk/io.c b/arch/sh/boards/landisk/io.c index 1f1679af09d0..aa6b145c9e8f 100644 --- a/arch/sh/boards/landisk/io.c +++ b/arch/sh/boards/landisk/io.c @@ -17,9 +17,9 @@ #include #include -#include #include #include +#include #include #include @@ -42,10 +42,6 @@ extern void *area6_io_base; /* Area 6 I/O Base address */ #define PCI_IOMAP(adr) (PCI_IO_AREA + (adr & ~SH7751_PCIIOBR_MASK)) -#define maybebadio(name,port) \ - printk("bad PC-like io %s for port 0x%lx at 0x%08x\n", \ - #name, (port), (__u32) __builtin_return_address(0)) - static inline void delay(void) { ctrl_inw(0xa0000000); @@ -66,7 +62,7 @@ static inline unsigned long port2adr(unsigned int port) return ((unsigned long)area6_io_base + PA_SIDE_OFFSET + ((port - 0x170) << 1)); else - maybebadio(port2adr, (unsigned long)port); + maybebadio((unsigned long)port); return port; } @@ -89,234 +85,200 @@ static inline unsigned long port2adr(unsigned int port) * should be way beyond the window, and is used w/o translation for * compatibility. */ -unsigned char landisk_inb(unsigned long port) +u8 landisk_inb(unsigned long port) { if (PXSEG(port)) - return *(volatile unsigned char *)port; + return ctrl_inb(port); else if (CHECK_SH7751_PCIIO(port)) - return *(volatile unsigned char *)PCI_IOMAP(port); - else - return (*(volatile unsigned short *)port2adr(port) & 0xff); + return ctrl_inb(PCI_IOMAP(port)); + + return ctrl_inw(port2adr(port)) & 0xff; } -unsigned char landisk_inb_p(unsigned long port) +u8 landisk_inb_p(unsigned long port) { - unsigned char v; + u8 v; if (PXSEG(port)) - v = *(volatile unsigned char *)port; + v = ctrl_inb(port); else if (CHECK_SH7751_PCIIO(port)) - v = *(volatile unsigned char *)PCI_IOMAP(port); + v = ctrl_inb(PCI_IOMAP(port)); else - v = (*(volatile unsigned short *)port2adr(port) & 0xff); + v = ctrl_inw(port2adr(port)) & 0xff; + delay(); return v; } -unsigned short landisk_inw(unsigned long port) +u16 landisk_inw(unsigned long port) { if (PXSEG(port)) - return *(volatile unsigned short *)port; + return ctrl_inw(port); else if (CHECK_SH7751_PCIIO(port)) - return *(volatile unsigned short *)PCI_IOMAP(port); + return ctrl_inw(PCI_IOMAP(port)); else - maybebadio(inw, port); + maybebadio(port); return 0; } -unsigned int landisk_inl(unsigned long port) +u32 landisk_inl(unsigned long port) { if (PXSEG(port)) - return *(volatile unsigned long *)port; + return ctrl_inl(port); else if (CHECK_SH7751_PCIIO(port)) - return *(volatile unsigned long *)PCI_IOMAP(port); + return ctrl_inl(PCI_IOMAP(port)); else - maybebadio(inl, port); + maybebadio(port); return 0; } -void landisk_outb(unsigned char value, unsigned long port) +void landisk_outb(u8 value, unsigned long port) { - if (PXSEG(port)) - *(volatile unsigned char *)port = value; + ctrl_outb(value, port); else if (CHECK_SH7751_PCIIO(port)) - *(volatile unsigned char *)PCI_IOMAP(port) = value; + ctrl_outb(value, PCI_IOMAP(port)); else - *(volatile unsigned short *)port2adr(port) = value; + ctrl_outw(value, port2adr(port)); } -void landisk_outb_p(unsigned char value, unsigned long port) +void landisk_outb_p(u8 value, unsigned long port) { if (PXSEG(port)) - *(volatile unsigned char *)port = value; + ctrl_outb(value, port); else if (CHECK_SH7751_PCIIO(port)) - *(volatile unsigned char *)PCI_IOMAP(port) = value; + ctrl_outb(value, PCI_IOMAP(port)); else - *(volatile unsigned short *)port2adr(port) = value; + ctrl_outw(value, port2adr(port)); delay(); } -void landisk_outw(unsigned short value, unsigned long port) +void landisk_outw(u16 value, unsigned long port) { if (PXSEG(port)) - *(volatile unsigned short *)port = value; + ctrl_outw(value, port); else if (CHECK_SH7751_PCIIO(port)) - *(volatile unsigned short *)PCI_IOMAP(port) = value; + ctrl_outw(value, PCI_IOMAP(port)); else - maybebadio(outw, port); + maybebadio(port); } -void landisk_outl(unsigned int value, unsigned long port) +void landisk_outl(u32 value, unsigned long port) { if (PXSEG(port)) - *(volatile unsigned long *)port = value; + ctrl_outl(value, port); else if (CHECK_SH7751_PCIIO(port)) - *(volatile unsigned long *)PCI_IOMAP(port) = value; + ctrl_outl(value, PCI_IOMAP(port)); else - maybebadio(outl, port); + maybebadio(port); } -void landisk_insb(unsigned long port, void *addr, unsigned long count) +void landisk_insb(unsigned long port, void *dst, unsigned long count) { - if (PXSEG(port)) - while (count--) - *((unsigned char *)addr)++ = - *(volatile unsigned char *)port; - else if (CHECK_SH7751_PCIIO(port)) { - volatile __u8 *bp = (__u8 *) PCI_IOMAP(port); + volatile u16 *p; + u8 *buf = dst; - while (count--) - *((volatile unsigned char *)addr)++ = *bp; - } else { - volatile __u16 *p = (volatile unsigned short *)port2adr(port); + if (PXSEG(port)) { + while (count--) + *buf++ = *(volatile u8 *)port; + } else if (CHECK_SH7751_PCIIO(port)) { + volatile u8 *bp = (volatile u8 *)PCI_IOMAP(port); - while (count--) - *((unsigned char *)addr)++ = *p; + while (count--) + *buf++ = *bp; + } else { + p = (volatile u16 *)port2adr(port); + while (count--) + *buf++ = *p & 0xff; } } -void landisk_insw(unsigned long port, void *addr, unsigned long count) +void landisk_insw(unsigned long port, void *dst, unsigned long count) { - volatile __u16 *p; + volatile u16 *p; + u16 *buf = dst; if (PXSEG(port)) - p = (volatile unsigned short *)port; + p = (volatile u16 *)port; else if (CHECK_SH7751_PCIIO(port)) - p = (volatile unsigned short *)PCI_IOMAP(port); + p = (volatile u16 *)PCI_IOMAP(port); else - p = (volatile unsigned short *)port2adr(port); + p = (volatile u16 *)port2adr(port); while (count--) - *((__u16 *) addr)++ = *p; + *buf++ = *p; } -void landisk_insl(unsigned long port, void *addr, unsigned long count) +void landisk_insl(unsigned long port, void *dst, unsigned long count) { + u32 *buf = dst; + if (CHECK_SH7751_PCIIO(port)) { - volatile __u32 *p = (__u32 *) PCI_IOMAP(port); + volatile u32 *p = (volatile u32 *)PCI_IOMAP(port); - while (count--) - *((__u32 *) addr)++ = *p; + while (count--) + *buf++ = *p; } else - maybebadio(insl, port); + maybebadio(port); } -void landisk_outsb(unsigned long port, const void *addr, unsigned long count) +void landisk_outsb(unsigned long port, const void *src, unsigned long count) { + volatile u16 *p; + const u8 *buf = src; + if (PXSEG(port)) - while (count--) - *(volatile unsigned char *)port = - *((unsigned char *)addr)++; + while (count--) + ctrl_outb(*buf++, port); else if (CHECK_SH7751_PCIIO(port)) { - volatile __u8 *bp = (__u8 *) PCI_IOMAP(port); + volatile u8 *bp = (volatile u8 *)PCI_IOMAP(port); - while (count--) - *bp = *((volatile unsigned char *)addr)++; + while (count--) + *bp = *buf++; } else { - volatile __u16 *p = (volatile unsigned short *)port2adr(port); - - while (count--) - *p = *((unsigned char *)addr)++; + p = (volatile u16 *)port2adr(port); + while (count--) + *p = *buf++; } } -void landisk_outsw(unsigned long port, const void *addr, unsigned long count) +void landisk_outsw(unsigned long port, const void *src, unsigned long count) { - volatile __u16 *p; + volatile u16 *p; + const u16 *buf = src; if (PXSEG(port)) - p = (volatile unsigned short *)port; + p = (volatile u16 *)port; else if (CHECK_SH7751_PCIIO(port)) - p = (volatile unsigned short *)PCI_IOMAP(port); + p = (volatile u16 *)PCI_IOMAP(port); else - p = (volatile unsigned short *)port2adr(port); - while (count--) - *p = *((__u16 *) addr)++; -} + p = (volatile u16 *)port2adr(port); -void landisk_outsl(unsigned long port, const void *addr, unsigned long count) -{ - if (CHECK_SH7751_PCIIO(port)) { - volatile __u32 *p = (__u32 *) PCI_IOMAP(port); - - while (count--) - *p = *((__u32 *) addr)++; - } else - maybebadio(outsl, port); + while (count--) + *p = *buf++; } -/* For read/write calls, just copy generic (pass-thru); PCIMBR is */ -/* already set up. For a larger memory space, these would need to */ -/* reset PCIMBR as needed on a per-call basis... */ - -unsigned char landisk_readb(unsigned long addr) +void landisk_outsl(unsigned long port, const void *src, unsigned long count) { - return *(volatile unsigned char *)addr; -} + const u32 *buf = src; -unsigned short landisk_readw(unsigned long addr) -{ - return *(volatile unsigned short *)addr; -} - -unsigned int landisk_readl(unsigned long addr) -{ - return *(volatile unsigned long *)addr; -} - -void landisk_writeb(unsigned char b, unsigned long addr) -{ - *(volatile unsigned char *)addr = b; -} - -void landisk_writew(unsigned short b, unsigned long addr) -{ - *(volatile unsigned short *)addr = b; -} - -void landisk_writel(unsigned int b, unsigned long addr) -{ - *(volatile unsigned long *)addr = b; -} + if (CHECK_SH7751_PCIIO(port)) { + volatile u32 *p = (volatile u32 *)PCI_IOMAP(port); -void *landisk_ioremap(unsigned long offset, unsigned long size) -{ - if (offset >= 0xfd000000) - return (void *)offset; - else - return (void *)P2SEGADDR(offset); + while (count--) + *p = *buf++; + } else + maybebadio(port); } -void landisk_iounmap(void *addr) +void __iomem *landisk_ioport_map(unsigned long port, unsigned int size) { -} + if (PXSEG(port)) + return (void __iomem *)port; + else if (CHECK_SH7751_PCIIO(port)) + return (void __iomem *)PCI_IOMAP(port); -/* Map ISA bus address to the real address. Only for PCMCIA. */ - -unsigned long landisk_isa_port2addr(unsigned long offset) -{ - return port2adr(offset); + return (void __iomem *)port2adr(port); } diff --git a/arch/sh/boards/landisk/setup.c b/arch/sh/boards/landisk/setup.c index 0c60eaa10ba7..3a795cfb1eda 100644 --- a/arch/sh/boards/landisk/setup.c +++ b/arch/sh/boards/landisk/setup.c @@ -1,157 +1,52 @@ /* * arch/sh/boards/landisk/setup.c * + * Copyright (C) 2000 Kazumoto Kojima * Copyright (C) 2002 Paul Mundt * - * May be copied or modified under the terms of the GNU General Public - * License. See linux/COPYING for more information. - * - * Setup code for an unknown machine (internal peripherials only) - */ -/* - * linux/arch/sh/kernel/setup_landisk.c - * - * Copyright (C) 2000 Kazumoto Kojima - * * I-O DATA Device, Inc. LANDISK Support. * * Modified for LANDISK by * Atom Create Engineering Co., Ltd. 2002. - */ -/* + * * modifed by kogiidena * 2005.09.16 + * + * 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 #include -#include -#include #include -#include - -#include -#include +#include -extern void (*board_time_init) (void); void landisk_time_init(void); -extern void init_landisk_IRQ(void); +void init_landisk_IRQ(void); int landisk_ledparam; int landisk_buzzerparam; int landisk_arch; -/* defined in mm/ioremap.c */ -extern void *p3_ioremap(unsigned long phys_addr, unsigned long size, - unsigned long flags); - -/* - * Initialize the board - */ - -const char *get_system_type(void) -{ - return "LANDISK"; -} - -static void landisk_power_off(void) -{ - ctrl_outb(0x01, PA_SHUTDOWN); -} - -void check_usl5p(void) -{ - volatile unsigned char *p = (volatile unsigned char *)PA_LED; - unsigned char tmp1, tmp2; - tmp1 = *p; - *p = 0x40; - tmp2 = *p; - *p = tmp1; - landisk_arch = (tmp2 == 0x40) ? 1 : 0; - if (landisk_arch == 1) { /* arch == usl-5p */ - landisk_ledparam = 0x00000380; - landisk_ledparam |= (tmp1 & 0x07c); - } else { /* arch == landisk */ - landisk_ledparam = 0x02000180; - landisk_ledparam |= 0x04; - } - return; -} - -void __init platform_setup(void) -{ - - landisk_buzzerparam = 0; - check_usl5p(); - - printk(KERN_INFO "I-O DATA DEVICE, INC. \"LANDISK Series\" support.\n"); - board_time_init = landisk_time_init; - pm_power_off = landisk_power_off; - -} - -void *area5_io_base; -void *area6_io_base; - -int __init cf_init(void) -{ - pgprot_t prot; - unsigned long paddrbase, psize; - - /* open I/O area window */ - paddrbase = virt_to_phys((void *)PA_AREA5_IO); - psize = PAGE_SIZE; - prot = PAGE_KERNEL_PCC(1, _PAGE_PCC_IO16); - area5_io_base = p3_ioremap(paddrbase, psize, prot.pgprot); - if (!area5_io_base) { - printk("allocate_cf_area : can't open CF I/O window!\n"); - return -ENOMEM; - } - - paddrbase = virt_to_phys((void *)PA_AREA6_IO); - psize = PAGE_SIZE; - prot = PAGE_KERNEL_PCC(0, _PAGE_PCC_IO16); - area6_io_base = p3_ioremap(paddrbase, psize, prot.pgprot); - if (!area6_io_base) { - printk("allocate_cf_area : can't open HDD I/O window!\n"); - return -ENOMEM; - } - - printk(KERN_INFO "Allocate Area5/6 success.\n"); - - /* XXX : do we need attribute and common-memory area also? */ - - return 0; -} - -__initcall(cf_init); - -#include - -/* Cycle the LED's in the clasic knightrider/Sun pattern */ - -void heartbeat_landisk(void) +/* cycle the led's in the clasic knightrider/sun pattern */ +static void heartbeat_landisk(void) { static unsigned int cnt = 0, blink = 0x00, period = 25; - volatile unsigned char *p = (volatile unsigned char *)PA_LED; + volatile u8 *p = (volatile u8 *)PA_LED; char data; - if ((landisk_ledparam & 0x080) == 0) { + if ((landisk_ledparam & 0x080) == 0) return; - } + cnt += 1; - if (cnt < period) { + + if (cnt < period) return; - } + cnt = 0; blink++; @@ -167,17 +62,16 @@ void heartbeat_landisk(void) } *p = data; - if (((landisk_ledparam & 0x007f7f00) == 0) - && (landisk_buzzerparam == 0)) { + if (((landisk_ledparam & 0x007f7f00) == 0) && + (landisk_buzzerparam == 0)) landisk_ledparam &= (~0x0080); - } + landisk_buzzerparam >>= 1; } /* * The Machine Vector */ - struct sh_machine_vector mv_landisk __initmv = { .mv_nr_irqs = 72, .mv_inb = landisk_inb, @@ -198,21 +92,88 @@ struct sh_machine_vector mv_landisk __initmv = { .mv_outsb = landisk_outsb, .mv_outsw = landisk_outsw, .mv_outsl = landisk_outsl, - .mv_readb = landisk_readb, - .mv_readw = landisk_readw, - .mv_readl = landisk_readl, - .mv_writeb = landisk_writeb, - .mv_writew = landisk_writew, - .mv_writel = landisk_writel, - .mv_ioremap = landisk_ioremap, - .mv_iounmap = landisk_iounmap, - .mv_isa_port2addr = landisk_isa_port2addr, + .mv_ioport_map = landisk_ioport_map, .mv_init_irq = init_landisk_IRQ, - #ifdef CONFIG_HEARTBEAT .mv_heartbeat = heartbeat_landisk, #endif - }; - ALIAS_MV(landisk) + +const char *get_system_type(void) +{ + return "LANDISK"; +} + +static void landisk_power_off(void) +{ + ctrl_outb(0x01, PA_SHUTDOWN); +} + +static void check_usl5p(void) +{ + volatile u8 *p = (volatile u8 *)PA_LED; + u8 tmp1, tmp2; + + tmp1 = *p; + *p = 0x40; + tmp2 = *p; + *p = tmp1; + + landisk_arch = (tmp2 == 0x40); + if (landisk_arch == 1) { + /* arch == usl-5p */ + landisk_ledparam = 0x00000380; + landisk_ledparam |= (tmp1 & 0x07c); + } else { + /* arch == landisk */ + landisk_ledparam = 0x02000180; + landisk_ledparam |= 0x04; + } +} + +void __init platform_setup(void) +{ + landisk_buzzerparam = 0; + check_usl5p(); + + printk(KERN_INFO "I-O DATA DEVICE, INC. \"LANDISK Series\" support.\n"); + board_time_init = landisk_time_init; + pm_power_off = landisk_power_off; +} + +void *area5_io_base; +void *area6_io_base; + +static int __init landisk_cf_init(void) +{ + pgprot_t prot; + unsigned long paddrbase, psize; + + /* open I/O area window */ + paddrbase = virt_to_phys((void *)PA_AREA5_IO); + psize = PAGE_SIZE; + prot = PAGE_KERNEL_PCC(1, _PAGE_PCC_IO16); + area5_io_base = p3_ioremap(paddrbase, psize, prot.pgprot); + if (!area5_io_base) { + printk("allocate_cf_area : can't open CF I/O window!\n"); + return -ENOMEM; + } + + paddrbase = virt_to_phys((void *)PA_AREA6_IO); + psize = PAGE_SIZE; + prot = PAGE_KERNEL_PCC(0, _PAGE_PCC_IO16); + area6_io_base = p3_ioremap(paddrbase, psize, prot.pgprot); + if (!area6_io_base) { + printk("allocate_cf_area : can't open HDD I/O window!\n"); + return -ENOMEM; + } + + printk(KERN_INFO "Allocate Area5/6 success.\n"); + + /* XXX : do we need attribute and common-memory area also? */ + + return 0; +} + +__initcall(landisk_cf_init); diff --git a/arch/sh/boards/renesas/hs7751rvoip/io.c b/arch/sh/boards/renesas/hs7751rvoip/io.c index 09fb77ffb835..edecf107fc13 100644 --- a/arch/sh/boards/renesas/hs7751rvoip/io.c +++ b/arch/sh/boards/renesas/hs7751rvoip/io.c @@ -294,15 +294,6 @@ void hs7751rvoip_outsl(unsigned long port, const void *addr, unsigned long count maybebadio(outsl, port); } -void *hs7751rvoip_ioremap(unsigned long offset, unsigned long size) -{ - if (offset >= 0xfd000000) - return (void *)offset; - else - return (void *)P2SEGADDR(offset); -} -EXPORT_SYMBOL(hs7751rvoip_ioremap); - unsigned long hs7751rvoip_isa_port2addr(unsigned long offset) { return port2adr(offset); diff --git a/arch/sh/boards/renesas/hs7751rvoip/setup.c b/arch/sh/boards/renesas/hs7751rvoip/setup.c index 813fc4d5862a..aa51bda931f6 100644 --- a/arch/sh/boards/renesas/hs7751rvoip/setup.c +++ b/arch/sh/boards/renesas/hs7751rvoip/setup.c @@ -60,7 +60,6 @@ struct sh_machine_vector mv_hs7751rvoip __initmv = { .mv_outsw = hs7751rvoip_outsw, .mv_outsl = hs7751rvoip_outsl, - .mv_ioremap = hs7751rvoip_ioremap, .mv_isa_port2addr = hs7751rvoip_isa_port2addr, .mv_init_irq = hs7751rvoip_init_irq, }; diff --git a/arch/sh/boards/renesas/rts7751r2d/io.c b/arch/sh/boards/renesas/rts7751r2d/io.c index 9e7fa726a86d..8dc2a2e2e5df 100644 --- a/arch/sh/boards/renesas/rts7751r2d/io.c +++ b/arch/sh/boards/renesas/rts7751r2d/io.c @@ -321,15 +321,6 @@ void rts7751r2d_outsl(unsigned long port, const void *addr, unsigned long count) maybebadio(port); } -void *rts7751r2d_ioremap(unsigned long offset, unsigned long size) -{ - if (offset >= 0xfd000000) - return (void *)offset; - else - return (void *)P2SEGADDR(offset); -} -EXPORT_SYMBOL(rts7751r2d_ioremap); - unsigned long rts7751r2d_isa_port2addr(unsigned long offset) { return port2adr(offset); diff --git a/arch/sh/boards/renesas/rts7751r2d/mach.c b/arch/sh/boards/renesas/rts7751r2d/mach.c index 175a93d726e8..fe3e8735e9f8 100644 --- a/arch/sh/boards/renesas/rts7751r2d/mach.c +++ b/arch/sh/boards/renesas/rts7751r2d/mach.c @@ -19,7 +19,6 @@ extern void heartbeat_rts7751r2d(void); extern void init_rts7751r2d_IRQ(void); -extern void *rts7751r2d_ioremap(unsigned long, unsigned long); extern int rts7751r2d_irq_demux(int irq); extern void *voyagergx_consistent_alloc(struct device *, size_t, dma_addr_t *, gfp_t); @@ -53,7 +52,6 @@ struct sh_machine_vector mv_rts7751r2d __initmv = { .mv_outsw = rts7751r2d_outsw, .mv_outsl = rts7751r2d_outsl, - .mv_ioremap = rts7751r2d_ioremap, .mv_init_irq = init_rts7751r2d_IRQ, #ifdef CONFIG_HEARTBEAT .mv_heartbeat = heartbeat_rts7751r2d, diff --git a/arch/sh/boards/titan/io.c b/arch/sh/boards/titan/io.c index d66900c99a11..b886fd233a66 100644 --- a/arch/sh/boards/titan/io.c +++ b/arch/sh/boards/titan/io.c @@ -138,19 +138,12 @@ void titan_outsl(unsigned long port, const void *src, unsigned long count) maybebadio(port); } -void *titan_ioremap(unsigned long offset, unsigned long size) { - if (CHECK_SH7751_PCIIO(offset) || CHECK_SH7751_PCIMEMIO(offset)) - return (void *)offset; -} - void __iomem *titan_ioport_map(unsigned long port, unsigned int size) { - if (PXSEG(port)) + if (PXSEG(port) || CHECK_SH7751_PCIMEMIO(port)) return (void __iomem *)port; else if (CHECK_SH7751_PCIIO(port)) return (void __iomem *)PCI_IOMAP(port); return (void __iomem *)port2adr(port); } - -EXPORT_SYMBOL(titan_ioremap); diff --git a/arch/sh/boards/titan/setup.c b/arch/sh/boards/titan/setup.c index 6ac5c8d7b3fb..c8b431c1d0fd 100644 --- a/arch/sh/boards/titan/setup.c +++ b/arch/sh/boards/titan/setup.c @@ -51,7 +51,6 @@ struct sh_machine_vector mv_titan __initmv = { .mv_insl = titan_insl, .mv_outsl = titan_outsl, - .mv_ioremap = titan_ioremap, .mv_ioport_map = titan_ioport_map, .mv_init_irq = init_titan_irq, diff --git a/arch/sh/drivers/pci/pci.c b/arch/sh/drivers/pci/pci.c index 1f5e23e8b163..285dffd12bd8 100644 --- a/arch/sh/drivers/pci/pci.c +++ b/arch/sh/drivers/pci/pci.c @@ -2,7 +2,7 @@ * arch/sh/drivers/pci/pci.c * * Copyright (c) 2002 M. R. Brown - * Copyright (c) 2004, 2005 Paul Mundt + * Copyright (c) 2004 - 2006 Paul Mundt * * These functions are collected here to reduce duplication of common * code amongst the many platform-specific PCI support code files. @@ -172,10 +172,23 @@ void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen) return NULL; if (maxlen && len > maxlen) len = maxlen; - if (flags & IORESOURCE_IO) + + /* + * Presently the IORESOURCE_MEM case is a bit special, most + * SH7751 style PCI controllers have PCI memory at a fixed + * location in the address space where no remapping is desired + * (traditionally at 0xfd000000). Once this changes, the + * IORESOURCE_MEM case will have to switch to using ioremap() and + * more care will have to be taken to inhibit page table mapping + * for legacy cores. + * + * For now everything wraps to ioport_map(), since boards that + * have PCI will be able to check the address range properly on + * their own. + * -- PFM. + */ + if (flags & (IORESOURCE_IO | IORESOURCE_MEM)) return ioport_map(start, len); - if (flags & IORESOURCE_MEM) - return ioremap(start, len); return NULL; } diff --git a/arch/sh/kernel/cf-enabler.c b/arch/sh/kernel/cf-enabler.c index f1f9ab87f0b0..c9b823d1d073 100644 --- a/arch/sh/kernel/cf-enabler.c +++ b/arch/sh/kernel/cf-enabler.c @@ -41,9 +41,6 @@ #define slot_no 1 #endif -/* defined in mm/ioremap.c */ -extern void * p3_ioremap(unsigned long phys_addr, unsigned long size, unsigned long flags); - /* use this pointer to access to directly connected compact flash io area*/ void *cf_io_base; @@ -62,7 +59,7 @@ static int __init allocate_cf_area(void) return -ENOMEM; } /* printk("p3_ioremap(paddr=0x%08lx, psize=0x%08lx, prot=0x%08lx)=0x%08lx\n", - paddrbase, psize, prot.pgprot, cf_io_base);*/ + paddrbase, psize, prot.pgprot, cf_io_base);*/ /* XXX : do we need attribute and common-memory area also? */ diff --git a/arch/sh/kernel/sh_ksyms.c b/arch/sh/kernel/sh_ksyms.c index 8a6dd06fd071..b73feafcd06e 100644 --- a/arch/sh/kernel/sh_ksyms.c +++ b/arch/sh/kernel/sh_ksyms.c @@ -27,7 +27,6 @@ EXPORT_SYMBOL(sh_mv); /* platform dependent support */ EXPORT_SYMBOL(dump_fpu); -EXPORT_SYMBOL(iounmap); EXPORT_SYMBOL(enable_irq); EXPORT_SYMBOL(disable_irq); EXPORT_SYMBOL(probe_irq_mask); diff --git a/arch/sh/mm/Makefile b/arch/sh/mm/Makefile index d90906367c5f..87a7c07265c0 100644 --- a/arch/sh/mm/Makefile +++ b/arch/sh/mm/Makefile @@ -12,13 +12,14 @@ obj-$(CONFIG_DMA_PAGE_OPS) += pg-dma.o obj-$(CONFIG_HUGETLB_PAGE) += hugetlbpage.o mmu-y := fault-nommu.o tlb-nommu.o pg-nommu.o -mmu-$(CONFIG_MMU) := fault.o clear_page.o copy_page.o tlb-flush.o +mmu-$(CONFIG_MMU) := fault.o clear_page.o copy_page.o tlb-flush.o \ + ioremap.o obj-y += $(mmu-y) ifdef CONFIG_MMU -obj-$(CONFIG_CPU_SH3) += tlb-sh3.o -obj-$(CONFIG_CPU_SH4) += tlb-sh4.o ioremap.o +obj-$(CONFIG_CPU_SH3) += tlb-sh3.o +obj-$(CONFIG_CPU_SH4) += tlb-sh4.o obj-$(CONFIG_SH7705_CACHE_32KB) += pg-sh7705.o endif diff --git a/arch/sh/mm/pmb.c b/arch/sh/mm/pmb.c index ff5bde745647..819fd0faf022 100644 --- a/arch/sh/mm/pmb.c +++ b/arch/sh/mm/pmb.c @@ -3,7 +3,7 @@ * * Privileged Space Mapping Buffer (PMB) Support. * - * Copyright (C) 2005 Paul Mundt + * Copyright (C) 2005, 2006 Paul Mundt * * P1/P2 Section mapping definitions from map32.h, which was: * @@ -24,6 +24,7 @@ #include #include #include +#include #include #include @@ -127,11 +128,15 @@ repeat: return 0; } -void set_pmb_entry(struct pmb_entry *pmbe) +int set_pmb_entry(struct pmb_entry *pmbe) { + int ret; + jump_to_P2(); - __set_pmb_entry(pmbe->vpn, pmbe->ppn, pmbe->flags, &pmbe->entry); + ret = __set_pmb_entry(pmbe->vpn, pmbe->ppn, pmbe->flags, &pmbe->entry); back_to_P1(); + + return ret; } void clear_pmb_entry(struct pmb_entry *pmbe) @@ -162,11 +167,141 @@ void clear_pmb_entry(struct pmb_entry *pmbe) clear_bit(entry, &pmb_map); } +static DEFINE_SPINLOCK(pmb_list_lock); +static struct pmb_entry *pmb_list; + +static inline void pmb_list_add(struct pmb_entry *pmbe) +{ + struct pmb_entry **p, *tmp; + + p = &pmb_list; + while ((tmp = *p) != NULL) + p = &tmp->next; + + pmbe->next = tmp; + *p = pmbe; +} + +static inline void pmb_list_del(struct pmb_entry *pmbe) +{ + struct pmb_entry **p, *tmp; + + for (p = &pmb_list; (tmp = *p); p = &tmp->next) + if (tmp == pmbe) { + *p = tmp->next; + return; + } +} + +static struct { + unsigned long size; + int flag; +} pmb_sizes[] = { + { .size = 0x20000000, .flag = PMB_SZ_512M, }, + { .size = 0x08000000, .flag = PMB_SZ_128M, }, + { .size = 0x04000000, .flag = PMB_SZ_64M, }, + { .size = 0x01000000, .flag = PMB_SZ_16M, }, +}; + +long pmb_remap(unsigned long vaddr, unsigned long phys, + unsigned long size, unsigned long flags) +{ + struct pmb_entry *pmbp; + unsigned long wanted; + int pmb_flags, i; + + /* Convert typical pgprot value to the PMB equivalent */ + if (flags & _PAGE_CACHABLE) { + if (flags & _PAGE_WT) + pmb_flags = PMB_WT; + else + pmb_flags = PMB_C; + } else + pmb_flags = PMB_WT | PMB_UB; + + pmbp = NULL; + wanted = size; + +again: + for (i = 0; i < ARRAY_SIZE(pmb_sizes); i++) { + struct pmb_entry *pmbe; + int ret; + + if (size < pmb_sizes[i].size) + continue; + + pmbe = pmb_alloc(vaddr, phys, pmb_flags | pmb_sizes[i].flag); + if (IS_ERR(pmbe)) + return PTR_ERR(pmbe); + + ret = set_pmb_entry(pmbe); + if (ret != 0) { + pmb_free(pmbe); + return -EBUSY; + } + + phys += pmb_sizes[i].size; + vaddr += pmb_sizes[i].size; + size -= pmb_sizes[i].size; + + /* + * Link adjacent entries that span multiple PMB entries + * for easier tear-down. + */ + if (likely(pmbp)) + pmbp->link = pmbe; + + pmbp = pmbe; + } + + if (size >= 0x1000000) + goto again; + + return wanted - size; +} + +void pmb_unmap(unsigned long addr) +{ + struct pmb_entry **p, *pmbe; + + for (p = &pmb_list; (pmbe = *p); p = &pmbe->next) + if (pmbe->vpn == addr) + break; + + if (unlikely(!pmbe)) + return; + + WARN_ON(!test_bit(pmbe->entry, &pmb_map)); + + do { + struct pmb_entry *pmblink = pmbe; + + clear_pmb_entry(pmbe); + pmbe = pmblink->link; + + pmb_free(pmblink); + } while (pmbe); +} + static void pmb_cache_ctor(void *pmb, kmem_cache_t *cachep, unsigned long flags) { + struct pmb_entry *pmbe = pmb; + memset(pmb, 0, sizeof(struct pmb_entry)); - ((struct pmb_entry *)pmb)->entry = PMB_NO_ENTRY; + spin_lock_irq(&pmb_list_lock); + + pmbe->entry = PMB_NO_ENTRY; + pmb_list_add(pmbe); + + spin_unlock_irq(&pmb_list_lock); +} + +static void pmb_cache_dtor(void *pmb, kmem_cache_t *cachep, unsigned long flags) +{ + spin_lock_irq(&pmb_list_lock); + pmb_list_del(pmb); + spin_unlock_irq(&pmb_list_lock); } static int __init pmb_init(void) @@ -177,7 +312,7 @@ static int __init pmb_init(void) BUG_ON(unlikely(nr_entries >= NR_PMB_ENTRIES)); pmb_cache = kmem_cache_create("pmb", sizeof(struct pmb_entry), - 0, 0, pmb_cache_ctor, NULL); + 0, 0, pmb_cache_ctor, pmb_cache_dtor); BUG_ON(!pmb_cache); jump_to_P2(); diff --git a/include/asm-sh/landisk/iodata_landisk.h b/include/asm-sh/landisk/iodata_landisk.h index 7189d3a36384..9db3cdfe6776 100644 --- a/include/asm-sh/landisk/iodata_landisk.h +++ b/include/asm-sh/landisk/iodata_landisk.h @@ -74,5 +74,8 @@ extern int landisk_ledparam; /* from setup.c */ extern int landisk_buzzerparam; /* from setup.c */ extern int landisk_arch; /* from setup.c */ +#define __IO_PREFIX landisk +#include + #endif /* __ASM_SH_IODATA_LANDISK_H */ diff --git a/include/asm-sh/mmu.h b/include/asm-sh/mmu.h index 91c884634276..ec09589fa6ca 100644 --- a/include/asm-sh/mmu.h +++ b/include/asm-sh/mmu.h @@ -50,6 +50,8 @@ typedef unsigned long mm_context_t; #define PMB_NO_ENTRY (-1) +struct pmb_entry; + struct pmb_entry { unsigned long vpn; unsigned long ppn; @@ -60,16 +62,23 @@ struct pmb_entry { * PMB_NO_ENTRY to search for a free one */ int entry; + + struct pmb_entry *next; + /* Adjacent entry link for contiguous multi-entry mappings */ + struct pmb_entry *link; }; /* arch/sh/mm/pmb.c */ int __set_pmb_entry(unsigned long vpn, unsigned long ppn, unsigned long flags, int *entry); -void set_pmb_entry(struct pmb_entry *pmbe); +int set_pmb_entry(struct pmb_entry *pmbe); void clear_pmb_entry(struct pmb_entry *pmbe); struct pmb_entry *pmb_alloc(unsigned long vpn, unsigned long ppn, unsigned long flags); void pmb_free(struct pmb_entry *pmbe); +long pmb_remap(unsigned long virt, unsigned long phys, + unsigned long size, unsigned long flags); +void pmb_unmap(unsigned long addr); #endif /* __MMU_H */ -- cgit v1.2.3 From c470662854ff94d44bf8c192cefac3efa33db676 Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Wed, 27 Sep 2006 15:29:18 +0900 Subject: sh: Fixup SHMLBA definition for SH7705. We need this set to something sensible anywhere were we have an aliasing dcache.. Signed-off-by: Paul Mundt --- include/asm-sh/cpu-sh2/shmparam.h | 16 ------------- include/asm-sh/cpu-sh3/cacheflush.h | 48 ++++++++++++++++--------------------- include/asm-sh/cpu-sh3/shmparam.h | 16 ------------- include/asm-sh/cpu-sh4/shmparam.h | 19 --------------- include/asm-sh/shmparam.h | 20 +++++++++++++--- 5 files changed, 38 insertions(+), 81 deletions(-) delete mode 100644 include/asm-sh/cpu-sh2/shmparam.h delete mode 100644 include/asm-sh/cpu-sh3/shmparam.h delete mode 100644 include/asm-sh/cpu-sh4/shmparam.h (limited to 'include') diff --git a/include/asm-sh/cpu-sh2/shmparam.h b/include/asm-sh/cpu-sh2/shmparam.h deleted file mode 100644 index 817c1821ee4b..000000000000 --- a/include/asm-sh/cpu-sh2/shmparam.h +++ /dev/null @@ -1,16 +0,0 @@ -/* - * include/asm-sh/cpu-sh2/shmparam.h - * - * Copyright (C) 2003 Paul Mundt - * - * 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 __ASM_CPU_SH2_SHMPARAM_H -#define __ASM_CPU_SH2_SHMPARAM_H - -#define SHMLBA PAGE_SIZE /* attach addr a multiple of this */ - -#endif /* __ASM_CPU_SH2_SHMPARAM_H */ - diff --git a/include/asm-sh/cpu-sh3/cacheflush.h b/include/asm-sh/cpu-sh3/cacheflush.h index db0cb071ea8e..97f5a64c2ab8 100644 --- a/include/asm-sh/cpu-sh3/cacheflush.h +++ b/include/asm-sh/cpu-sh3/cacheflush.h @@ -35,47 +35,41 @@ /* 32KB cache, 4kb PAGE sizes need to check bit 12 */ #define CACHE_ALIAS 0x00001000 -extern void flush_cache_all(void); -extern void flush_cache_mm(struct mm_struct *mm); -extern void flush_cache_range(struct vm_area_struct *vma, unsigned long start, - unsigned long end); -extern void flush_cache_page(struct vm_area_struct *vma, unsigned long addr, unsigned long pfn); -extern void flush_dcache_page(struct page *pg); -extern void flush_icache_range(unsigned long start, unsigned long end); -extern void flush_icache_page(struct vm_area_struct *vma, struct page *page); - -#define flush_dcache_mmap_lock(mapping) do { } while (0) -#define flush_dcache_mmap_unlock(mapping) do { } while (0) - -/* SH3 has unified cache so no special action needed here */ -#define flush_cache_sigtramp(vaddr) do { } while (0) -#define flush_page_to_ram(page) do { } while (0) -#define flush_icache_user_range(vma,pg,adr,len) do { } while (0) - -#define p3_cache_init() do { } while (0) - #define PG_mapped PG_arch_1 -/* We provide our own get_unmapped_area to avoid cache alias issue */ -#define HAVE_ARCH_UNMAPPED_AREA - +void flush_cache_all(void); +void flush_cache_mm(struct mm_struct *mm); +void flush_cache_range(struct vm_area_struct *vma, unsigned long start, + unsigned long end); +void flush_cache_page(struct vm_area_struct *vma, unsigned long addr, unsigned long pfn); +void flush_dcache_page(struct page *pg); +void flush_icache_range(unsigned long start, unsigned long end); +void flush_icache_page(struct vm_area_struct *vma, struct page *page); #else - #define flush_cache_all() do { } while (0) #define flush_cache_mm(mm) do { } while (0) #define flush_cache_range(vma, start, end) do { } while (0) #define flush_cache_page(vma, vmaddr, pfn) do { } while (0) #define flush_dcache_page(page) do { } while (0) -#define flush_dcache_mmap_lock(mapping) do { } while (0) -#define flush_dcache_mmap_unlock(mapping) do { } while (0) #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) +#endif + +#define flush_dcache_mmap_lock(mapping) do { } while (0) +#define flush_dcache_mmap_unlock(mapping) do { } while (0) + +/* SH3 has unified cache so no special action needed here */ #define flush_cache_sigtramp(vaddr) do { } while (0) +#define flush_icache_user_range(vma,pg,adr,len) do { } while (0) #define p3_cache_init() do { } while (0) -#endif +/* + * We provide our own get_unmapped_area to avoid cache aliasing issues + * on SH7705 with a 32KB cache, and to page align addresses in the + * non-aliasing case. + */ +#define HAVE_ARCH_UNMAPPED_AREA #endif /* __ASM_CPU_SH3_CACHEFLUSH_H */ diff --git a/include/asm-sh/cpu-sh3/shmparam.h b/include/asm-sh/cpu-sh3/shmparam.h deleted file mode 100644 index da5b5eec81ee..000000000000 --- a/include/asm-sh/cpu-sh3/shmparam.h +++ /dev/null @@ -1,16 +0,0 @@ -/* - * include/asm-sh/cpu-sh3/shmparam.h - * - * Copyright (C) 1999 Niibe Yutaka - * - * 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 __ASM_CPU_SH3_SHMPARAM_H -#define __ASM_CPU_SH3_SHMPARAM_H - -#define SHMLBA PAGE_SIZE /* attach addr a multiple of this */ - -#endif /* __ASM_CPU_SH3_SHMPARAM_H */ - diff --git a/include/asm-sh/cpu-sh4/shmparam.h b/include/asm-sh/cpu-sh4/shmparam.h deleted file mode 100644 index a5a0aa9425fe..000000000000 --- a/include/asm-sh/cpu-sh4/shmparam.h +++ /dev/null @@ -1,19 +0,0 @@ -/* - * include/asm-sh/cpu-sh4/shmparam.h - * - * Copyright (C) 1999 Niibe Yutaka - * - * 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 __ASM_CPU_SH4_SHMPARAM_H -#define __ASM_CPU_SH4_SHMPARAM_H - -/* - * SH-4 has D-cache alias issue - */ -#define SHMLBA (PAGE_SIZE*4) /* attach addr a multiple of this */ - -#endif /* __ASM_CPU_SH4_SHMPARAM_H */ - diff --git a/include/asm-sh/shmparam.h b/include/asm-sh/shmparam.h index 0a95604b9b66..ba1758d90106 100644 --- a/include/asm-sh/shmparam.h +++ b/include/asm-sh/shmparam.h @@ -1,8 +1,22 @@ +/* + * include/asm-sh/shmparam.h + * + * Copyright (C) 1999 Niibe Yutaka + * Copyright (C) 2006 Paul Mundt + * + * 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 __ASM_SH_SHMPARAM_H #define __ASM_SH_SHMPARAM_H -#ifdef __KERNEL__ -#include +/* + * SH-4 and SH-3 7705 have an aliasing dcache. Bump this up to a sensible value + * for everyone, and work out the specifics from the probed cache descriptor. + */ +#define SHMLBA 0x4000 /* attach addr a multiple of this */ + +#define __ARCH_FORCE_SHMLBA -#endif /* __KERNEL__ */ #endif /* __ASM_SH_SHMPARAM_H */ -- cgit v1.2.3 From 373e68b5472d421cbd2703e7a77caf053f78c005 Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Wed, 27 Sep 2006 15:41:24 +0900 Subject: sh: Board updates for I/O routine rework. This updates the various boards for some of the recent I/O routine updates. Signed-off-by: Paul Mundt --- arch/sh/Makefile | 3 - arch/sh/boards/renesas/hs7751rvoip/io.c | 159 +++++++++++++++++------------ arch/sh/boards/renesas/hs7751rvoip/setup.c | 5 +- arch/sh/boards/renesas/systemh/io.c | 96 ++--------------- arch/sh/boards/renesas/systemh/irq.c | 2 +- arch/sh/boards/renesas/systemh/setup.c | 14 +-- arch/sh/boards/se/7300/io.c | 8 +- arch/sh/boards/se/7300/irq.c | 2 +- arch/sh/boards/se/7300/led.c | 18 +--- arch/sh/boards/se/7300/setup.c | 3 +- arch/sh/boards/se/73180/setup.c | 3 +- arch/sh/boards/se/770x/io.c | 52 ++-------- arch/sh/boards/se/770x/irq.c | 2 +- arch/sh/boards/se/770x/led.c | 2 +- arch/sh/boards/se/770x/mach.c | 7 +- arch/sh/boards/se/770x/setup.c | 2 +- arch/sh/boards/se/7751/io.c | 26 ++--- arch/sh/boards/se/7751/irq.c | 2 +- arch/sh/boards/se/7751/led.c | 3 +- arch/sh/boards/se/7751/mach.c | 8 +- arch/sh/boards/se/7751/setup.c | 6 +- arch/sh/boards/sh03/setup.c | 25 ++--- arch/sh/boards/snapgear/io.c | 63 ++---------- arch/sh/boards/snapgear/rtc.c | 3 - arch/sh/boards/snapgear/setup.c | 97 +----------------- arch/sh/boards/titan/io.c | 4 +- arch/sh/cchips/Kconfig | 6 +- arch/sh/kernel/cf-enabler.c | 7 +- drivers/net/stnic.c | 2 +- include/asm-sh/hs7751rvoip/hs7751rvoip.h | 3 + include/asm-sh/mc146818rtc.h | 2 +- include/asm-sh/se.h | 80 +++++++++++++++ include/asm-sh/se/io.h | 35 ------- include/asm-sh/se/se.h | 77 -------------- include/asm-sh/se7300.h | 64 ++++++++++++ include/asm-sh/se7300/io.h | 29 ------ include/asm-sh/se7300/se7300.h | 61 ----------- include/asm-sh/se73180.h | 65 ++++++++++++ include/asm-sh/se73180/io.h | 32 ------ include/asm-sh/se73180/se73180.h | 62 ----------- include/asm-sh/se7751.h | 71 +++++++++++++ include/asm-sh/se7751/io.h | 42 -------- include/asm-sh/se7751/se7751.h | 68 ------------ include/asm-sh/sh03/io.h | 10 +- include/asm-sh/snapgear.h | 79 ++++++++++++++ include/asm-sh/snapgear/io.h | 92 ----------------- include/asm-sh/systemh/7751systemh.h | 68 ------------ include/asm-sh/systemh/io.h | 43 -------- include/asm-sh/systemh7751.h | 71 +++++++++++++ 49 files changed, 607 insertions(+), 1077 deletions(-) create mode 100644 include/asm-sh/se.h delete mode 100644 include/asm-sh/se/io.h delete mode 100644 include/asm-sh/se/se.h create mode 100644 include/asm-sh/se7300.h delete mode 100644 include/asm-sh/se7300/io.h delete mode 100644 include/asm-sh/se7300/se7300.h create mode 100644 include/asm-sh/se73180.h delete mode 100644 include/asm-sh/se73180/io.h delete mode 100644 include/asm-sh/se73180/se73180.h create mode 100644 include/asm-sh/se7751.h delete mode 100644 include/asm-sh/se7751/io.h delete mode 100644 include/asm-sh/se7751/se7751.h create mode 100644 include/asm-sh/snapgear.h delete mode 100644 include/asm-sh/snapgear/io.h delete mode 100644 include/asm-sh/systemh/7751systemh.h delete mode 100644 include/asm-sh/systemh/io.h create mode 100644 include/asm-sh/systemh7751.h (limited to 'include') diff --git a/arch/sh/Makefile b/arch/sh/Makefile index 55dcba2c06fc..65676c33822e 100644 --- a/arch/sh/Makefile +++ b/arch/sh/Makefile @@ -111,10 +111,7 @@ machdir-$(CONFIG_SH_UNKNOWN) := unknown incdir-y := $(notdir $(machdir-y)) -incdir-$(CONFIG_SH_SOLUTION_ENGINE) := se incdir-$(CONFIG_SH_7751_SOLUTION_ENGINE) := se7751 -incdir-$(CONFIG_SH_7300_SOLUTION_ENGINE) := se7300 -incdir-$(CONFIG_SH_73180_SOLUTION_ENGINE) := se73180 incdir-$(CONFIG_SH_HP6XX) := hp6xx ifneq ($(machdir-y),) diff --git a/arch/sh/boards/renesas/hs7751rvoip/io.c b/arch/sh/boards/renesas/hs7751rvoip/io.c index edecf107fc13..ecdce7ef6a34 100644 --- a/arch/sh/boards/renesas/hs7751rvoip/io.c +++ b/arch/sh/boards/renesas/hs7751rvoip/io.c @@ -21,10 +21,8 @@ #include #include "../../../drivers/pci/pci-sh7751.h" -extern void *area5_io8_base; /* Area 5 8bit I/O Base address */ extern void *area6_io8_base; /* Area 6 8bit I/O Base address */ extern void *area5_io16_base; /* Area 5 16bit I/O Base address */ -extern void *area6_io16_base; /* Area 6 16bit I/O Base address */ /* * The 7751R HS7751RVoIP uses the built-in PCI controller (PCIC) @@ -37,16 +35,10 @@ extern void *area6_io16_base; /* Area 6 16bit I/O Base address */ #define PCIMBR (volatile long *)PCI_REG(SH7751_PCIMBR) #define PCI_IO_AREA SH7751_PCI_IO_BASE #define PCI_MEM_AREA SH7751_PCI_CONFIG_BASE - #define PCI_IOMAP(adr) (PCI_IO_AREA + (adr & ~SH7751_PCIIOBR_MASK)) -#if defined(CONFIG_HS7751RVOIP_CODEC) #define CODEC_IO_BASE 0x1000 -#endif - -#define maybebadio(name,port) \ - printk("bad PC-like io %s for port 0x%lx at 0x%08x\n", \ - #name, (port), (__u32) __builtin_return_address(0)) +#define CODEC_IOMAP(a) ((unsigned long)area6_io8_base + ((a) - CODEC_IO_BASE)) static inline void delay(void) { @@ -61,7 +53,7 @@ static inline unsigned long port2adr(unsigned int port) else return ((unsigned long)area5_io16_base + 0x800 + ((port-0x1f0) << 1)); else - maybebadio(port2adr, (unsigned long)port); + maybebadio((unsigned long)port); return port; } @@ -109,15 +101,15 @@ codec_port(unsigned long port) unsigned char hs7751rvoip_inb(unsigned long port) { if (PXSEG(port)) - return *(volatile unsigned char *)port; + return ctrl_inb(port); #if defined(CONFIG_HS7751RVOIP_CODEC) else if (codec_port(port)) - return *(volatile unsigned char *)((unsigned long)area6_io8_base+(port-CODEC_IO_BASE)); + return ctrl_inb(CODEC_IOMAP(port)); #endif else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) - return *(volatile unsigned char *)PCI_IOMAP(port); + return ctrl_inb(PCI_IOMAP(port)); else - return (*(volatile unsigned short *)port2adr(port) & 0xff); + return ctrl_inw(port2adr(port)) & 0xff; } unsigned char hs7751rvoip_inb_p(unsigned long port) @@ -125,15 +117,15 @@ unsigned char hs7751rvoip_inb_p(unsigned long port) unsigned char v; if (PXSEG(port)) - v = *(volatile unsigned char *)port; + v = ctrl_inb(port); #if defined(CONFIG_HS7751RVOIP_CODEC) else if (codec_port(port)) - v = *(volatile unsigned char *)((unsigned long)area6_io8_base+(port-CODEC_IO_BASE)); + v = ctrl_inb(CODEC_IOMAP(port)); #endif else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) - v = *(volatile unsigned char *)PCI_IOMAP(port); + v = ctrl_inb(PCI_IOMAP(port)); else - v = (*(volatile unsigned short *)port2adr(port) & 0xff); + v = ctrl_inw(port2adr(port)) & 0xff; delay(); return v; } @@ -141,22 +133,22 @@ unsigned char hs7751rvoip_inb_p(unsigned long port) unsigned short hs7751rvoip_inw(unsigned long port) { if (PXSEG(port)) - return *(volatile unsigned short *)port; + return ctrl_inw(port); else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) - return *(volatile unsigned short *)PCI_IOMAP(port); + return ctrl_inw(PCI_IOMAP(port)); else - maybebadio(inw, port); + maybebadio(port); return 0; } unsigned int hs7751rvoip_inl(unsigned long port) { if (PXSEG(port)) - return *(volatile unsigned long *)port; + return ctrl_inl(port); else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) - return *(volatile unsigned long *)PCI_IOMAP(port); + return ctrl_inl(PCI_IOMAP(port)); else - maybebadio(inl, port); + maybebadio(port); return 0; } @@ -164,137 +156,168 @@ void hs7751rvoip_outb(unsigned char value, unsigned long port) { if (PXSEG(port)) - *(volatile unsigned char *)port = value; + ctrl_outb(value, port); #if defined(CONFIG_HS7751RVOIP_CODEC) else if (codec_port(port)) - *(volatile unsigned char *)((unsigned long)area6_io8_base+(port-CODEC_IO_BASE)) = value; + ctrl_outb(value, CODEC_IOMAP(port)); #endif else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) - *(unsigned char *)PCI_IOMAP(port) = value; + ctrl_outb(value, PCI_IOMAP(port)); else - *(volatile unsigned short *)port2adr(port) = value; + ctrl_outb(value, port2adr(port)); } void hs7751rvoip_outb_p(unsigned char value, unsigned long port) { if (PXSEG(port)) - *(volatile unsigned char *)port = value; + ctrl_outb(value, port); #if defined(CONFIG_HS7751RVOIP_CODEC) else if (codec_port(port)) - *(volatile unsigned char *)((unsigned long)area6_io8_base+(port-CODEC_IO_BASE)) = value; + ctrl_outb(value, CODEC_IOMAP(port)); #endif else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) - *(unsigned char *)PCI_IOMAP(port) = value; + ctrl_outb(value, PCI_IOMAP(port)); else - *(volatile unsigned short *)port2adr(port) = value; + ctrl_outw(value, port2adr(port)); + delay(); } void hs7751rvoip_outw(unsigned short value, unsigned long port) { if (PXSEG(port)) - *(volatile unsigned short *)port = value; + ctrl_outw(value, port); else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) - *(unsigned short *)PCI_IOMAP(port) = value; + ctrl_outw(value, PCI_IOMAP(port)); else - maybebadio(outw, port); + maybebadio(port); } void hs7751rvoip_outl(unsigned int value, unsigned long port) { if (PXSEG(port)) - *(volatile unsigned long *)port = value; + ctrl_outl(value, port); else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) - *((unsigned long *)PCI_IOMAP(port)) = value; + ctrl_outl(value, PCI_IOMAP(port)); else - maybebadio(outl, port); + maybebadio(port); } void hs7751rvoip_insb(unsigned long port, void *addr, unsigned long count) { + u8 *buf = addr; + if (PXSEG(port)) - while (count--) *((unsigned char *) addr)++ = *(volatile unsigned char *)port; + while (count--) + *buf++ = ctrl_inb(port); #if defined(CONFIG_HS7751RVOIP_CODEC) else if (codec_port(port)) - while (count--) *((unsigned char *) addr)++ = *(volatile unsigned char *)((unsigned long)area6_io8_base+(port-CODEC_IO_BASE)); + while (count--) + *buf++ = ctrl_inb(CODEC_IOMAP(port)); #endif else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) { - volatile __u8 *bp = (__u8 *)PCI_IOMAP(port); + volatile u8 *bp = (volatile u8 *)PCI_IOMAP(port); - while (count--) *((volatile unsigned char *) addr)++ = *bp; + while (count--) + *buf++ = *bp; } else { - volatile __u16 *p = (volatile unsigned short *)port2adr(port); + volatile u16 *p = (volatile u16 *)port2adr(port); - while (count--) *((unsigned char *) addr)++ = *p & 0xff; + while (count--) + *buf++ = *p & 0xff; } } void hs7751rvoip_insw(unsigned long port, void *addr, unsigned long count) { - volatile __u16 *p; + volatile u16 *p; + u16 *buf = addr; if (PXSEG(port)) - p = (volatile unsigned short *)port; + p = (volatile u16 *)port; else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) - p = (volatile unsigned short *)PCI_IOMAP(port); + p = (volatile u16 *)PCI_IOMAP(port); else - p = (volatile unsigned short *)port2adr(port); - while (count--) *((__u16 *) addr)++ = *p; + p = (volatile u16 *)port2adr(port); + while (count--) + *buf++ = *p; } void hs7751rvoip_insl(unsigned long port, void *addr, unsigned long count) { + if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) { - volatile __u32 *p = (__u32 *)PCI_IOMAP(port); + volatile u32 *p = (volatile u32 *)PCI_IOMAP(port); + u32 *buf = addr; - while (count--) *((__u32 *) addr)++ = *p; + while (count--) + *buf++ = *p; } else - maybebadio(insl, port); + maybebadio(port); } void hs7751rvoip_outsb(unsigned long port, const void *addr, unsigned long count) { + const u8 *buf = addr; + if (PXSEG(port)) - while (count--) *(volatile unsigned char *)port = *((unsigned char *) addr)++; + while (count--) + ctrl_outb(*buf++, port); #if defined(CONFIG_HS7751RVOIP_CODEC) else if (codec_port(port)) - while (count--) *(volatile unsigned char *)((unsigned long)area6_io8_base+(port-CODEC_IO_BASE)) = *((unsigned char *) addr)++; + while (count--) + ctrl_outb(*buf++, CODEC_IOMAP(port)); #endif else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) { - volatile __u8 *bp = (__u8 *)PCI_IOMAP(port); + volatile u8 *bp = (volatile u8 *)PCI_IOMAP(port); - while (count--) *bp = *((volatile unsigned char *) addr)++; + while (count--) + *bp = *buf++; } else { - volatile __u16 *p = (volatile unsigned short *)port2adr(port); + volatile u16 *p = (volatile u16 *)port2adr(port); - while (count--) *p = *((unsigned char *) addr)++; + while (count--) + *p = *buf++; } } void hs7751rvoip_outsw(unsigned long port, const void *addr, unsigned long count) { - volatile __u16 *p; + volatile u16 *p; + const u16 *buf = addr; if (PXSEG(port)) - p = (volatile unsigned short *)port; + p = (volatile u16 *)port; else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) - p = (volatile unsigned short *)PCI_IOMAP(port); + p = (volatile u16 *)PCI_IOMAP(port); else - p = (volatile unsigned short *)port2adr(port); - while (count--) *p = *((__u16 *) addr)++; + p = (volatile u16 *)port2adr(port); + + while (count--) + *p = *buf++; } void hs7751rvoip_outsl(unsigned long port, const void *addr, unsigned long count) { + const u32 *buf = addr; + if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) { - volatile __u32 *p = (__u32 *)PCI_IOMAP(port); + volatile u32 *p = (volatile u32 *)PCI_IOMAP(port); - while (count--) *p = *((__u32 *) addr)++; + while (count--) + *p = *buf++; } else - maybebadio(outsl, port); + maybebadio(port); } -unsigned long hs7751rvoip_isa_port2addr(unsigned long offset) +void __iomem *hs7751rvoip_ioport_map(unsigned long port, unsigned int size) { - return port2adr(offset); + if (PXSEG(port)) + return (void __iomem *)port; + else if (unlikely(codec_port(port) && (size == 1))) + return (void __iomem *)CODEC_IOMAP(port); + else if (CHECK_SH7751_PCIIO(port)) + return (void __iomem *)PCI_IOMAP(port); + + return (void __iomem *)port2adr(port); } diff --git a/arch/sh/boards/renesas/hs7751rvoip/setup.c b/arch/sh/boards/renesas/hs7751rvoip/setup.c index aa51bda931f6..a2cbcc5d530f 100644 --- a/arch/sh/boards/renesas/hs7751rvoip/setup.c +++ b/arch/sh/boards/renesas/hs7751rvoip/setup.c @@ -17,9 +17,8 @@ #include #include #include -#include -#include #include +#include #include #include #include @@ -60,8 +59,8 @@ struct sh_machine_vector mv_hs7751rvoip __initmv = { .mv_outsw = hs7751rvoip_outsw, .mv_outsl = hs7751rvoip_outsl, - .mv_isa_port2addr = hs7751rvoip_isa_port2addr, .mv_init_irq = hs7751rvoip_init_irq, + .mv_ioport_map = hs7751rvoip_ioport_map, }; ALIAS_MV(hs7751rvoip) diff --git a/arch/sh/boards/renesas/systemh/io.c b/arch/sh/boards/renesas/systemh/io.c index 85511576d414..0befd4f9894c 100644 --- a/arch/sh/boards/renesas/systemh/io.c +++ b/arch/sh/boards/renesas/systemh/io.c @@ -10,11 +10,10 @@ #include #include -#include +#include +#include #include #include - -#include #include "../../../drivers/pci/pci-sh7751.h" /* @@ -31,11 +30,6 @@ #define PCI_IOMAP(adr) (PCI_IO_AREA + (adr & ~SH7751_PCIIOBR_MASK)) #define ETHER_IOMAP(adr) (0xB3000000 + (adr)) /*map to 16bits access area of smc lan chip*/ - -#define maybebadio(name,port) \ - printk("bad PC-like io %s for port 0x%lx at 0x%08x\n", \ - #name, (port), (__u32) __builtin_return_address(0)) - static inline void delay(void) { ctrl_inw(0xa0000000); @@ -46,11 +40,7 @@ port2adr(unsigned int port) { if (port >= 0x2000) return (volatile __u16 *) (PA_MRSHPC + (port - 0x2000)); -#if 0 - else - return (volatile __u16 *) (PA_SUPERIO + (port << 1)); -#endif - maybebadio(name,(unsigned long)port); + maybebadio((unsigned long)port); return (volatile __u16*)port; } @@ -111,7 +101,7 @@ unsigned short sh7751systemh_inw(unsigned long port) else if (port <= 0x3F1) return *(volatile unsigned int *)ETHER_IOMAP(port); else - maybebadio(inw, port); + maybebadio(port); return 0; } @@ -126,7 +116,7 @@ unsigned int sh7751systemh_inl(unsigned long port) else if (port <= 0x3F1) return *(volatile unsigned int *)ETHER_IOMAP(port); else - maybebadio(inl, port); + maybebadio(port); return 0; } @@ -167,7 +157,7 @@ void sh7751systemh_outw(unsigned short value, unsigned long port) else if (port <= 0x3F1) *(volatile unsigned short *)ETHER_IOMAP(port) = value; else - maybebadio(outw, port); + maybebadio(port); } void sh7751systemh_outl(unsigned int value, unsigned long port) @@ -177,7 +167,7 @@ void sh7751systemh_outl(unsigned int value, unsigned long port) else if (CHECK_SH7751_PCIIO(port)) *((unsigned long*)PCI_IOMAP(port)) = value; else - maybebadio(outl, port); + maybebadio(port); } void sh7751systemh_insb(unsigned long port, void *addr, unsigned long count) @@ -194,7 +184,7 @@ void sh7751systemh_insw(unsigned long port, void *addr, unsigned long count) void sh7751systemh_insl(unsigned long port, void *addr, unsigned long count) { - maybebadio(insl, port); + maybebadio(port); } void sh7751systemh_outsb(unsigned long port, const void *addr, unsigned long count) @@ -211,73 +201,5 @@ void sh7751systemh_outsw(unsigned long port, const void *addr, unsigned long cou void sh7751systemh_outsl(unsigned long port, const void *addr, unsigned long count) { - maybebadio(outsw, port); -} - -/* For read/write calls, just copy generic (pass-thru); PCIMBR is */ -/* already set up. For a larger memory space, these would need to */ -/* reset PCIMBR as needed on a per-call basis... */ - -unsigned char sh7751systemh_readb(unsigned long addr) -{ - return *(volatile unsigned char*)addr; -} - -unsigned short sh7751systemh_readw(unsigned long addr) -{ - return *(volatile unsigned short*)addr; -} - -unsigned int sh7751systemh_readl(unsigned long addr) -{ - return *(volatile unsigned long*)addr; -} - -void sh7751systemh_writeb(unsigned char b, unsigned long addr) -{ - *(volatile unsigned char*)addr = b; -} - -void sh7751systemh_writew(unsigned short b, unsigned long addr) -{ - *(volatile unsigned short*)addr = b; -} - -void sh7751systemh_writel(unsigned int b, unsigned long addr) -{ - *(volatile unsigned long*)addr = b; -} - - - -/* Map ISA bus address to the real address. Only for PCMCIA. */ - -/* ISA page descriptor. */ -static __u32 sh_isa_memmap[256]; - -#if 0 -static int -sh_isa_mmap(__u32 start, __u32 length, __u32 offset) -{ - int idx; - - if (start >= 0x100000 || (start & 0xfff) || (length != 0x1000)) - return -1; - - idx = start >> 12; - sh_isa_memmap[idx] = 0xb8000000 + (offset &~ 0xfff); - printk("sh_isa_mmap: start %x len %x offset %x (idx %x paddr %x)\n", - start, length, offset, idx, sh_isa_memmap[idx]); - return 0; -} -#endif - -unsigned long -sh7751systemh_isa_port2addr(unsigned long offset) -{ - int idx; - - idx = (offset >> 12) & 0xff; - offset &= 0xfff; - return sh_isa_memmap[idx] + offset; + maybebadio(port); } diff --git a/arch/sh/boards/renesas/systemh/irq.c b/arch/sh/boards/renesas/systemh/irq.c index 8372d967f601..53731a0abb8f 100644 --- a/arch/sh/boards/renesas/systemh/irq.c +++ b/arch/sh/boards/renesas/systemh/irq.c @@ -15,7 +15,7 @@ #include #include #include -#include +#include #include /* address of external interrupt mask register diff --git a/arch/sh/boards/renesas/systemh/setup.c b/arch/sh/boards/renesas/systemh/setup.c index 826fa3d7669c..433c7c3f35e2 100644 --- a/arch/sh/boards/renesas/systemh/setup.c +++ b/arch/sh/boards/renesas/systemh/setup.c @@ -15,9 +15,8 @@ * for more details. */ #include -#include -#include #include +#include extern void make_systemh_irq(unsigned int irq); @@ -31,8 +30,6 @@ const char *get_system_type(void) */ void __init init_7751systemh_IRQ(void) { -/* make_ipr_irq(10, BCR_ILCRD, 1, 0x0f-10); LAN */ -/* make_ipr_irq(14, BCR_ILCRA, 2, 0x0f-4); */ make_systemh_irq(0xb); /* Ethernet interrupt */ } @@ -60,15 +57,6 @@ struct sh_machine_vector mv_7751systemh __initmv = { .mv_outsw = sh7751systemh_outsw, .mv_outsl = sh7751systemh_outsl, - .mv_readb = sh7751systemh_readb, - .mv_readw = sh7751systemh_readw, - .mv_readl = sh7751systemh_readl, - .mv_writeb = sh7751systemh_writeb, - .mv_writew = sh7751systemh_writew, - .mv_writel = sh7751systemh_writel, - - .mv_isa_port2addr = sh7751systemh_isa_port2addr, - .mv_init_irq = init_7751systemh_IRQ, }; ALIAS_MV(7751systemh) diff --git a/arch/sh/boards/se/7300/io.c b/arch/sh/boards/se/7300/io.c index f449a94ddffd..8a03d7a52a7c 100644 --- a/arch/sh/boards/se/7300/io.c +++ b/arch/sh/boards/se/7300/io.c @@ -9,8 +9,8 @@ */ #include -#include #include +#include #define badio(fn, a) panic("bad i/o operation %s for %08lx.", #fn, a) @@ -99,6 +99,7 @@ bad_outb(struct iop *p, unsigned char value, unsigned long port) badio(inw, port); } +#ifdef CONFIG_SMC91X /* MSTLANEX01 LAN at 0xb400:0000 */ static struct iop laniop = { .start = 0x300, @@ -110,6 +111,7 @@ static struct iop laniop = { .outb = simple_outb, .outw = simple_outw, }; +#endif /* NE2000 pc card NIC */ static struct iop neiop = { @@ -123,6 +125,7 @@ static struct iop neiop = { .outw = simple_outw, }; +#ifdef CONFIG_IDE /* CF in CF slot */ static struct iop cfiop = { .base = 0xb0600000, @@ -132,12 +135,13 @@ static struct iop cfiop = { .outb = pcc_outb, .outw = simple_outw, }; +#endif static __inline__ struct iop * port2iop(unsigned long port) { if (0) ; -#if defined(CONFIG_SMC91111) +#if defined(CONFIG_SMC91X) else if (laniop.check(&laniop, port)) return &laniop; #endif diff --git a/arch/sh/boards/se/7300/irq.c b/arch/sh/boards/se/7300/irq.c index 216a78d1a108..ad1034f98a29 100644 --- a/arch/sh/boards/se/7300/irq.c +++ b/arch/sh/boards/se/7300/irq.c @@ -11,7 +11,7 @@ #include #include #include -#include +#include /* * Initialize IRQ setting diff --git a/arch/sh/boards/se/7300/led.c b/arch/sh/boards/se/7300/led.c index ad51f0a9c1e3..4d03bb7774be 100644 --- a/arch/sh/boards/se/7300/led.c +++ b/arch/sh/boards/se/7300/led.c @@ -12,24 +12,10 @@ */ #include -#include - -static void -mach_led(int position, int value) -{ - volatile unsigned short *p = (volatile unsigned short *) PA_LED; - - if (value) { - *p |= (1 << 8); - } else { - *p &= ~(1 << 8); - } -} - +#include /* Cycle the LED's in the clasic Knightrider/Sun pattern */ -void -heartbeat_7300se(void) +void heartbeat_7300se(void) { static unsigned int cnt = 0, period = 0; volatile unsigned short *p = (volatile unsigned short *) PA_LED; diff --git a/arch/sh/boards/se/7300/setup.c b/arch/sh/boards/se/7300/setup.c index ebcd98d4c081..bb7e1a189be8 100644 --- a/arch/sh/boards/se/7300/setup.c +++ b/arch/sh/boards/se/7300/setup.c @@ -9,8 +9,7 @@ #include #include -#include -#include +#include void heartbeat_7300se(void); void init_7300se_IRQ(void); diff --git a/arch/sh/boards/se/73180/setup.c b/arch/sh/boards/se/73180/setup.c index cdb7b5f8d942..cddc7a2b858f 100644 --- a/arch/sh/boards/se/73180/setup.c +++ b/arch/sh/boards/se/73180/setup.c @@ -11,8 +11,7 @@ #include #include -#include -#include +#include void heartbeat_73180se(void); void init_73180se_IRQ(void); diff --git a/arch/sh/boards/se/770x/io.c b/arch/sh/boards/se/770x/io.c index 9a39ee963143..5102201c97ab 100644 --- a/arch/sh/boards/se/770x/io.c +++ b/arch/sh/boards/se/770x/io.c @@ -1,4 +1,4 @@ -/* $Id: io.c,v 1.5 2004/02/22 23:08:43 kkojima Exp $ +/* $Id: io.c,v 1.6 2006/01/04 17:53:54 lethal Exp $ * * linux/arch/sh/kernel/io_se.c * @@ -11,7 +11,7 @@ #include #include #include -#include +#include /* SH pcmcia io window base, start and end. */ int sh_pcic_io_wbase = 0xb8400000; @@ -52,10 +52,6 @@ shifted_port(unsigned long port) return 1; } -#define maybebadio(name,port) \ - printk("bad PC-like io %s for port 0x%lx at 0x%08x\n", \ - #name, (port), (__u32) __builtin_return_address(0)) - unsigned char se_inb(unsigned long port) { if (sh_pcic_io_start <= port && port <= sh_pcic_io_stop) @@ -86,13 +82,13 @@ unsigned short se_inw(unsigned long port) (sh_pcic_io_start <= port && port <= sh_pcic_io_stop)) return *port2adr(port); else - maybebadio(inw, port); + maybebadio(port); return 0; } unsigned int se_inl(unsigned long port) { - maybebadio(inl, port); + maybebadio(port); return 0; } @@ -123,12 +119,12 @@ void se_outw(unsigned short value, unsigned long port) (sh_pcic_io_start <= port && port <= sh_pcic_io_stop)) *port2adr(port) = value; else - maybebadio(outw, port); + maybebadio(port); } void se_outl(unsigned int value, unsigned long port) { - maybebadio(outl, port); + maybebadio(port); } void se_insb(unsigned long port, void *addr, unsigned long count) @@ -159,7 +155,7 @@ void se_insw(unsigned long port, void *addr, unsigned long count) void se_insl(unsigned long port, void *addr, unsigned long count) { - maybebadio(insl, port); + maybebadio(port); } void se_outsb(unsigned long port, const void *addr, unsigned long count) @@ -190,37 +186,5 @@ void se_outsw(unsigned long port, const void *addr, unsigned long count) void se_outsl(unsigned long port, const void *addr, unsigned long count) { - maybebadio(outsw, port); -} - -/* Map ISA bus address to the real address. Only for PCMCIA. */ - -/* ISA page descriptor. */ -static __u32 sh_isa_memmap[256]; - -static int -sh_isa_mmap(__u32 start, __u32 length, __u32 offset) -{ - int idx; - - if (start >= 0x100000 || (start & 0xfff) || (length != 0x1000)) - return -1; - - idx = start >> 12; - sh_isa_memmap[idx] = 0xb8000000 + (offset &~ 0xfff); -#if 0 - printk("sh_isa_mmap: start %x len %x offset %x (idx %x paddr %x)\n", - start, length, offset, idx, sh_isa_memmap[idx]); -#endif - return 0; -} - -unsigned long -se_isa_port2addr(unsigned long offset) -{ - int idx; - - idx = (offset >> 12) & 0xff; - offset &= 0xfff; - return sh_isa_memmap[idx] + offset; + maybebadio(port); } diff --git a/arch/sh/boards/se/770x/irq.c b/arch/sh/boards/se/770x/irq.c index 3e558716ce10..cff6700bbafd 100644 --- a/arch/sh/boards/se/770x/irq.c +++ b/arch/sh/boards/se/770x/irq.c @@ -11,7 +11,7 @@ #include #include #include -#include +#include /* * Initialize IRQ setting diff --git a/arch/sh/boards/se/770x/led.c b/arch/sh/boards/se/770x/led.c index 73e9848387ea..daf7b1ee786a 100644 --- a/arch/sh/boards/se/770x/led.c +++ b/arch/sh/boards/se/770x/led.c @@ -10,7 +10,7 @@ */ #include -#include +#include /* Cycle the LED's in the clasic Knightrider/Sun pattern */ void heartbeat_se(void) diff --git a/arch/sh/boards/se/770x/mach.c b/arch/sh/boards/se/770x/mach.c index 6ec07bd3dcf1..e8968b71c353 100644 --- a/arch/sh/boards/se/770x/mach.c +++ b/arch/sh/boards/se/770x/mach.c @@ -13,12 +13,9 @@ #include #include -#include - -#include +#include void heartbeat_se(void); -void setup_se(void); void init_se_IRQ(void); /* @@ -57,8 +54,6 @@ struct sh_machine_vector mv_se __initmv = { .mv_outsw = se_outsw, .mv_outsl = se_outsl, - .mv_isa_port2addr = se_isa_port2addr, - .mv_init_irq = init_se_IRQ, #ifdef CONFIG_HEARTBEAT .mv_heartbeat = heartbeat_se, diff --git a/arch/sh/boards/se/770x/setup.c b/arch/sh/boards/se/770x/setup.c index b6730ea57502..c9f75272e751 100644 --- a/arch/sh/boards/se/770x/setup.c +++ b/arch/sh/boards/se/770x/setup.c @@ -14,7 +14,7 @@ #include #include #include -#include +#include #include /* diff --git a/arch/sh/boards/se/7751/io.c b/arch/sh/boards/se/7751/io.c index 99041b269261..0e8a3ba48316 100644 --- a/arch/sh/boards/se/7751/io.c +++ b/arch/sh/boards/se/7751/io.c @@ -1,4 +1,4 @@ -/* +/* * linux/arch/sh/kernel/io_7751se.c * * Copyright (C) 2001 Ian da Silva, Jeremy Siegel @@ -14,7 +14,7 @@ #include #include #include -#include +#include #include #include @@ -52,10 +52,6 @@ int sh_pcic_io_dummy; #define PCI_IOMAP(adr) (PCI_IO_AREA + (adr & ~SH7751_PCIIOBR_MASK)) -#define maybebadio(name,port) \ - printk("bad PC-like io %s for port 0x%lx at 0x%08x\n", \ - #name, (port), (__u32) __builtin_return_address(0)) - static inline void delay(void) { ctrl_inw(0xa0000000); @@ -66,11 +62,7 @@ port2adr(unsigned int port) { if (port >= 0x2000) return (volatile __u16 *) (PA_MRSHPC + (port - 0x2000)); -#if 0 - else - return (volatile __u16 *) (PA_SUPERIO + (port << 1)); -#endif - maybebadio(name,(unsigned long)port); + maybebadio((unsigned long)port); return (volatile __u16*)port; } @@ -140,7 +132,7 @@ unsigned short sh7751se_inw(unsigned long port) else if (port >= 0x2000) return *port2adr(port); else - maybebadio(inw, port); + maybebadio(port); return 0; } @@ -153,7 +145,7 @@ unsigned int sh7751se_inl(unsigned long port) else if (port >= 0x2000) return *port2adr(port); else - maybebadio(inl, port); + maybebadio(port); return 0; } @@ -188,7 +180,7 @@ void sh7751se_outw(unsigned short value, unsigned long port) else if (port >= 0x2000) *port2adr(port) = value; else - maybebadio(outw, port); + maybebadio(port); } void sh7751se_outl(unsigned int value, unsigned long port) @@ -198,17 +190,17 @@ void sh7751se_outl(unsigned int value, unsigned long port) else if (CHECK_SH7751_PCIIO(port)) *((unsigned long*)PCI_IOMAP(port)) = value; else - maybebadio(outl, port); + maybebadio(port); } void sh7751se_insl(unsigned long port, void *addr, unsigned long count) { - maybebadio(insl, port); + maybebadio(port); } void sh7751se_outsl(unsigned long port, const void *addr, unsigned long count) { - maybebadio(outsw, port); + maybebadio(port); } /* Map ISA bus address to the real address. Only for PCMCIA. */ diff --git a/arch/sh/boards/se/7751/irq.c b/arch/sh/boards/se/7751/irq.c index bf6c023615df..c607b0a48479 100644 --- a/arch/sh/boards/se/7751/irq.c +++ b/arch/sh/boards/se/7751/irq.c @@ -12,7 +12,7 @@ #include #include #include -#include +#include /* * Initialize IRQ setting diff --git a/arch/sh/boards/se/7751/led.c b/arch/sh/boards/se/7751/led.c index 4405e26cf866..ff0355dea81b 100644 --- a/arch/sh/boards/se/7751/led.c +++ b/arch/sh/boards/se/7751/led.c @@ -8,9 +8,8 @@ * * This file contains Solution Engine specific LED code. */ - -#include #include +#include /* Cycle the LED's in the clasic Knightrider/Sun pattern */ void heartbeat_7751se(void) diff --git a/arch/sh/boards/se/7751/mach.c b/arch/sh/boards/se/7751/mach.c index 62d8d3e62590..1bb9047d863b 100644 --- a/arch/sh/boards/se/7751/mach.c +++ b/arch/sh/boards/se/7751/mach.c @@ -10,12 +10,8 @@ */ #include - #include -#include -#include - -#include +#include void heartbeat_7751se(void); void init_7751se_IRQ(void); @@ -44,8 +40,6 @@ struct sh_machine_vector mv_7751se __initmv = { .mv_insl = sh7751se_insl, .mv_outsl = sh7751se_outsl, - .mv_isa_port2addr = sh7751se_isa_port2addr, - .mv_init_irq = init_7751se_IRQ, #ifdef CONFIG_HEARTBEAT .mv_heartbeat = heartbeat_7751se, diff --git a/arch/sh/boards/se/7751/setup.c b/arch/sh/boards/se/7751/setup.c index 48dc5aee67d4..8b693105893c 100644 --- a/arch/sh/boards/se/7751/setup.c +++ b/arch/sh/boards/se/7751/setup.c @@ -1,4 +1,4 @@ -/* +/* * linux/arch/sh/kernel/setup_7751se.c * * Copyright (C) 2000 Kazumoto Kojima @@ -11,11 +11,9 @@ #include #include - -#include #include #include -#include +#include #ifdef CONFIG_SH_KGDB #include diff --git a/arch/sh/boards/sh03/setup.c b/arch/sh/boards/sh03/setup.c index 60290f8f289c..dab742a00c6f 100644 --- a/arch/sh/boards/sh03/setup.c +++ b/arch/sh/boards/sh03/setup.c @@ -7,22 +7,19 @@ #include #include -#include -#include #include +#include #include #include #include #include "../../drivers/pci/pci-sh7751.h" -extern void (*board_time_init)(void); - const char *get_system_type(void) { return "Interface CTP/PCI-SH03)"; } -void init_sh03_IRQ(void) +static void init_sh03_IRQ(void) { ctrl_outw(ctrl_inw(INTC_ICR) | INTC_ICR_IRLM, INTC_ICR); @@ -34,24 +31,20 @@ void init_sh03_IRQ(void) extern void *cf_io_base; -unsigned long sh03_isa_port2addr(unsigned long port) +static void __iomem *sh03_ioport_map(unsigned long port, unsigned int size) { if (PXSEG(port)) - return port; + return (void __iomem *)port; /* CompactFlash (IDE) */ - if (((port >= 0x1f0) && (port <= 0x1f7)) || (port == 0x3f6)) { - return (unsigned long)cf_io_base + port; - } - return port + SH7751_PCI_IO_BASE; -} + if (((port >= 0x1f0) && (port <= 0x1f7)) || (port == 0x3f6)) + return (void __iomem *)((unsigned long)cf_io_base + port); -/* - * The Machine Vector - */ + return (void __iomem *)(port + SH7751_PCI_IO_BASE); +} struct sh_machine_vector mv_sh03 __initmv = { .mv_nr_irqs = 48, - .mv_isa_port2addr = sh03_isa_port2addr, + .mv_ioport_map = sh03_ioport_map, .mv_init_irq = init_sh03_IRQ, #ifdef CONFIG_HEARTBEAT diff --git a/arch/sh/boards/snapgear/io.c b/arch/sh/boards/snapgear/io.c index e2eb78fc381d..9f700b8392bb 100644 --- a/arch/sh/boards/snapgear/io.c +++ b/arch/sh/boards/snapgear/io.c @@ -28,39 +28,26 @@ unsigned short secureedge5410_ioport; /* * The SnapGear uses the built-in PCI controller (PCIC) * of the 7751 processor - */ + */ #define PCIIOBR (volatile long *)PCI_REG(SH7751_PCIIOBR) #define PCIMBR (volatile long *)PCI_REG(SH7751_PCIMBR) #define PCI_IO_AREA SH7751_PCI_IO_BASE #define PCI_MEM_AREA SH7751_PCI_CONFIG_BASE - #define PCI_IOMAP(adr) (PCI_IO_AREA + (adr & ~SH7751_PCIIOBR_MASK)) - -#define maybebadio(name,port) \ - printk("bad PC-like io %s for port 0x%lx at 0x%08x\n", \ - #name, (port), (__u32) __builtin_return_address(0)) - - static inline void delay(void) { ctrl_inw(0xa0000000); } - static inline volatile __u16 *port2adr(unsigned int port) { -#if 0 - if (port >= 0x2000) - return (volatile __u16 *) (PA_MRSHPC + (port - 0x2000)); -#endif - maybebadio(name,(unsigned long)port); + maybebadio((unsigned long)port); return (volatile __u16*)port; } - /* In case someone configures the kernel w/o PCI support: in that */ /* scenario, don't ever bother to check for PCI-window addresses */ @@ -115,7 +102,7 @@ unsigned short snapgear_inw(unsigned long port) else if (port >= 0x2000) return *port2adr(port); else - maybebadio(inw, port); + maybebadio(port); return 0; } @@ -129,7 +116,7 @@ unsigned int snapgear_inl(unsigned long port) else if (port >= 0x2000) return *port2adr(port); else - maybebadio(inl, port); + maybebadio(port); return 0; } @@ -167,7 +154,7 @@ void snapgear_outw(unsigned short value, unsigned long port) else if (port >= 0x2000) *port2adr(port) = value; else - maybebadio(outw, port); + maybebadio(port); } @@ -178,49 +165,15 @@ void snapgear_outl(unsigned int value, unsigned long port) else if (CHECK_SH7751_PCIIO(port)) *((unsigned long*)PCI_IOMAP(port)) = value; else - maybebadio(outl, port); + maybebadio(port); } void snapgear_insl(unsigned long port, void *addr, unsigned long count) { - maybebadio(insl, port); + maybebadio(port); } void snapgear_outsl(unsigned long port, const void *addr, unsigned long count) { - maybebadio(outsw, port); -} - -/* Map ISA bus address to the real address. Only for PCMCIA. */ - - -/* ISA page descriptor. */ -static __u32 sh_isa_memmap[256]; - - -#if 0 -static int sh_isa_mmap(__u32 start, __u32 length, __u32 offset) -{ - int idx; - - if (start >= 0x100000 || (start & 0xfff) || (length != 0x1000)) - return -1; - - idx = start >> 12; - sh_isa_memmap[idx] = 0xb8000000 + (offset &~ 0xfff); -#if 0 - printk("sh_isa_mmap: start %x len %x offset %x (idx %x paddr %x)\n", - start, length, offset, idx, sh_isa_memmap[idx]); -#endif - return 0; -} -#endif - -unsigned long snapgear_isa_port2addr(unsigned long offset) -{ - int idx; - - idx = (offset >> 12) & 0xff; - offset &= 0xfff; - return sh_isa_memmap[idx] + offset; + maybebadio(port); } diff --git a/arch/sh/boards/snapgear/rtc.c b/arch/sh/boards/snapgear/rtc.c index b71e009da35c..287bc4ed3ac7 100644 --- a/arch/sh/boards/snapgear/rtc.c +++ b/arch/sh/boards/snapgear/rtc.c @@ -17,10 +17,7 @@ #include #include #include - #include -#include -#include /****************************************************************************/ diff --git a/arch/sh/boards/snapgear/setup.c b/arch/sh/boards/snapgear/setup.c index f1f7c70c9402..66ce32f8b13c 100644 --- a/arch/sh/boards/snapgear/setup.c +++ b/arch/sh/boards/snapgear/setup.c @@ -1,5 +1,4 @@ -/****************************************************************************/ -/* +/* * linux/arch/sh/boards/snapgear/setup.c * * Copyright (C) 2002 David McCullough @@ -12,8 +11,6 @@ * Modified for 7751 Solution Engine by * Ian da Silva and Jeremy Siegel, 2001. */ -/****************************************************************************/ - #include #include #include @@ -21,14 +18,13 @@ #include #include #include - #include -#include +#include #include #include +#include #include -extern void (*board_time_init)(void); extern void secureedge5410_rtc_init(void); extern void pcibios_init(void); @@ -85,91 +81,6 @@ static void __init init_snapgear_IRQ(void) make_ipr_irq(IRL3_IRQ, IRL3_IPR_ADDR, IRL3_IPR_POS, IRL3_PRIORITY); } -/****************************************************************************/ -/* - * Fast poll interrupt simulator. - */ - -/* - * Leave all of the fast timer/fast poll stuff commented out for now, since - * it's not clear whether it actually works or not. Since it wasn't being used - * at all in 2.4, we'll assume it's not sane for 2.6 either.. -- PFM - */ -#if 0 -#define FAST_POLL 1000 -//#define FAST_POLL_INTR - -#define FASTTIMER_IRQ 17 -#define FASTTIMER_IPR_ADDR INTC_IPRA -#define FASTTIMER_IPR_POS 2 -#define FASTTIMER_PRIORITY 3 - -#ifdef FAST_POLL_INTR -#define TMU1_TCR_INIT 0x0020 -#else -#define TMU1_TCR_INIT 0 -#endif -#define TMU_TSTR_INIT 1 -#define TMU1_TCR_CALIB 0x0000 - - -#ifdef FAST_POLL_INTR -static void fast_timer_irq(int irq, void *dev_instance, struct pt_regs *regs) -{ - unsigned long timer_status; - timer_status = ctrl_inw(TMU1_TCR); - timer_status &= ~0x100; - ctrl_outw(timer_status, TMU1_TCR); -} -#endif - -/* - * return the current ticks on the fast timer - */ - -unsigned long fast_timer_count(void) -{ - return(ctrl_inl(TMU1_TCNT)); -} - -/* - * setup a fast timer for profiling etc etc - */ - -static void setup_fast_timer() -{ - unsigned long interval; - -#ifdef FAST_POLL_INTR - interval = (current_cpu_data.module_clock/4 + FAST_POLL/2) / FAST_POLL; - - make_ipr_irq(FASTTIMER_IRQ, FASTTIMER_IPR_ADDR, FASTTIMER_IPR_POS, - FASTTIMER_PRIORITY); - - printk("SnapGear: %dHz fast timer on IRQ %d\n",FAST_POLL,FASTTIMER_IRQ); - - if (request_irq(FASTTIMER_IRQ, fast_timer_irq, 0, "SnapGear fast timer", - NULL) != 0) - printk("%s(%d): request_irq() failed?\n", __FILE__, __LINE__); -#else - printk("SnapGear: fast timer running\n",FAST_POLL,FASTTIMER_IRQ); - interval = 0xffffffff; -#endif - - ctrl_outb(ctrl_inb(TMU_TSTR) & ~0x2, TMU_TSTR); /* disable timer 1 */ - ctrl_outw(TMU1_TCR_INIT, TMU1_TCR); - ctrl_outl(interval, TMU1_TCOR); - ctrl_outl(interval, TMU1_TCNT); - ctrl_outb(ctrl_inb(TMU_TSTR) | 0x2, TMU_TSTR); /* enable timer 1 */ - - printk("Timer count 1 = 0x%x\n", fast_timer_count()); - udelay(1000); - printk("Timer count 2 = 0x%x\n", fast_timer_count()); -} -#endif - -/****************************************************************************/ - const char *get_system_type(void) { return "SnapGear SecureEdge5410"; @@ -196,8 +107,6 @@ struct sh_machine_vector mv_snapgear __initmv = { .mv_outw_p = snapgear_outw, .mv_outl_p = snapgear_outl, - .mv_isa_port2addr = snapgear_isa_port2addr, - .mv_init_irq = init_snapgear_IRQ, }; ALIAS_MV(snapgear) diff --git a/arch/sh/boards/titan/io.c b/arch/sh/boards/titan/io.c index b886fd233a66..48f3494f55b1 100644 --- a/arch/sh/boards/titan/io.c +++ b/arch/sh/boards/titan/io.c @@ -30,10 +30,10 @@ static inline void delay(void) ctrl_inw(0xa0000000); } -static inline volatile u16 *port2adr(unsigned int port) +static inline unsigned int port2adr(unsigned int port) { maybebadio((unsigned long)port); - return (volatile u16*)port; + return port; } u8 titan_inb(unsigned long port) diff --git a/arch/sh/cchips/Kconfig b/arch/sh/cchips/Kconfig index 155d139884c3..0582ca8346b6 100644 --- a/arch/sh/cchips/Kconfig +++ b/arch/sh/cchips/Kconfig @@ -65,6 +65,11 @@ config HD64461_IRQ Do not change this unless you know what you are doing. +config HD64461_IOBASE + hex "HD64461 start address" + depends on HD64461 + default "0xb0000000" + config HD64461_ENABLER bool "HD64461 PCMCIA enabler" depends on HD64461 @@ -73,7 +78,6 @@ config HD64461_ENABLER via the HD64461 companion chip. Otherwise, say N. - config HD64465_IOBASE hex "HD64465 start address" depends on HD64465 diff --git a/arch/sh/kernel/cf-enabler.c b/arch/sh/kernel/cf-enabler.c index c9b823d1d073..3e5fa1e24df0 100644 --- a/arch/sh/kernel/cf-enabler.c +++ b/arch/sh/kernel/cf-enabler.c @@ -10,7 +10,8 @@ */ #include - +#include +#include #include #include @@ -32,8 +33,6 @@ /* SH4 can't access PCMCIA interface through P2 area. * we must remap it with appropreate attribute bit of the page set. * this part is based on Greg Banks' hd64465_ss.c implementation - Masahiro Abe */ -#include -#include #if defined(CONFIG_CF_AREA6) #define slot_no 0 @@ -84,7 +83,7 @@ static int __init cf_init_default(void) } #if defined(CONFIG_SH_SOLUTION_ENGINE) -#include +#include /* * SolutionEngine diff --git a/drivers/net/stnic.c b/drivers/net/stnic.c index 3fd7a4fee665..e6f90427160c 100644 --- a/drivers/net/stnic.c +++ b/drivers/net/stnic.c @@ -19,7 +19,7 @@ #include #include -#include +#include #include #ifdef CONFIG_SH_STANDARD_BIOS #include diff --git a/include/asm-sh/hs7751rvoip/hs7751rvoip.h b/include/asm-sh/hs7751rvoip/hs7751rvoip.h index 857cc2ebbc69..69faf0171473 100644 --- a/include/asm-sh/hs7751rvoip/hs7751rvoip.h +++ b/include/asm-sh/hs7751rvoip/hs7751rvoip.h @@ -44,6 +44,9 @@ #define IRQ_RINGING 4 /* Ringing IRQ */ #define IRQ_CODEC 5 /* CODEC IRQ */ +#define __IO_PREFIX hs7751rvoip +#include + /* arch/sh/boards/renesas/hs7751rvoip/irq.c */ void init_hs7751rvoip_IRQ(void); diff --git a/include/asm-sh/mc146818rtc.h b/include/asm-sh/mc146818rtc.h index 1707cfb2915d..adc6e67c6b75 100644 --- a/include/asm-sh/mc146818rtc.h +++ b/include/asm-sh/mc146818rtc.h @@ -24,7 +24,7 @@ #define CMOS_WRITE(val,addr) __CMOS_WRITE(val,addr,b) #elif defined(CONFIG_SH_SECUREEDGE5410) -#include +#include #define RTC_PORT(n) SECUREEDGE_IOPORT_ADDR #define CMOS_READ(addr) secureedge5410_cmos_read(addr) diff --git a/include/asm-sh/se.h b/include/asm-sh/se.h new file mode 100644 index 000000000000..a1832154a3aa --- /dev/null +++ b/include/asm-sh/se.h @@ -0,0 +1,80 @@ +#ifndef __ASM_SH_HITACHI_SE_H +#define __ASM_SH_HITACHI_SE_H + +/* + * linux/include/asm-sh/hitachi_se.h + * + * Copyright (C) 2000 Kazumoto Kojima + * + * Hitachi SolutionEngine support + */ + +/* Box specific addresses. */ + +#define PA_ROM 0x00000000 /* EPROM */ +#define PA_ROM_SIZE 0x00400000 /* EPROM size 4M byte */ +#define PA_FROM 0x01000000 /* EPROM */ +#define PA_FROM_SIZE 0x00400000 /* EPROM size 4M byte */ +#define PA_EXT1 0x04000000 +#define PA_EXT1_SIZE 0x04000000 +#define PA_EXT2 0x08000000 +#define PA_EXT2_SIZE 0x04000000 +#define PA_SDRAM 0x0c000000 +#define PA_SDRAM_SIZE 0x04000000 + +#define PA_EXT4 0x12000000 +#define PA_EXT4_SIZE 0x02000000 +#define PA_EXT5 0x14000000 +#define PA_EXT5_SIZE 0x04000000 +#define PA_PCIC 0x18000000 /* MR-SHPC-01 PCMCIA */ + +#define PA_83902 0xb0000000 /* DP83902A */ +#define PA_83902_IF 0xb0040000 /* DP83902A remote io port */ +#define PA_83902_RST 0xb0080000 /* DP83902A reset port */ + +#define PA_SUPERIO 0xb0400000 /* SMC37C935A super io chip */ +#define PA_DIPSW0 0xb0800000 /* Dip switch 5,6 */ +#define PA_DIPSW1 0xb0800002 /* Dip switch 7,8 */ +#define PA_LED 0xb0c00000 /* LED */ +#if defined(CONFIG_CPU_SUBTYPE_SH7705) +#define PA_BCR 0xb0e00000 +#else +#define PA_BCR 0xb1400000 /* FPGA */ +#endif + +#define PA_MRSHPC 0xb83fffe0 /* MR-SHPC-01 PCMCIA controller */ +#define PA_MRSHPC_MW1 0xb8400000 /* MR-SHPC-01 memory window base */ +#define PA_MRSHPC_MW2 0xb8500000 /* MR-SHPC-01 attribute window base */ +#define PA_MRSHPC_IO 0xb8600000 /* MR-SHPC-01 I/O window base */ +#define MRSHPC_OPTION (PA_MRSHPC + 6) +#define MRSHPC_CSR (PA_MRSHPC + 8) +#define MRSHPC_ISR (PA_MRSHPC + 10) +#define MRSHPC_ICR (PA_MRSHPC + 12) +#define MRSHPC_CPWCR (PA_MRSHPC + 14) +#define MRSHPC_MW0CR1 (PA_MRSHPC + 16) +#define MRSHPC_MW1CR1 (PA_MRSHPC + 18) +#define MRSHPC_IOWCR1 (PA_MRSHPC + 20) +#define MRSHPC_MW0CR2 (PA_MRSHPC + 22) +#define MRSHPC_MW1CR2 (PA_MRSHPC + 24) +#define MRSHPC_IOWCR2 (PA_MRSHPC + 26) +#define MRSHPC_CDCR (PA_MRSHPC + 28) +#define MRSHPC_PCIC_INFO (PA_MRSHPC + 30) + +#define BCR_ILCRA (PA_BCR + 0) +#define BCR_ILCRB (PA_BCR + 2) +#define BCR_ILCRC (PA_BCR + 4) +#define BCR_ILCRD (PA_BCR + 6) +#define BCR_ILCRE (PA_BCR + 8) +#define BCR_ILCRF (PA_BCR + 10) +#define BCR_ILCRG (PA_BCR + 12) + +#if defined(CONFIG_CPU_SUBTYPE_SH7705) +#define IRQ_STNIC 12 +#else +#define IRQ_STNIC 10 +#endif + +#define __IO_PREFIX se +#include + +#endif /* __ASM_SH_HITACHI_SE_H */ diff --git a/include/asm-sh/se/io.h b/include/asm-sh/se/io.h deleted file mode 100644 index 9eeb86cd6cef..000000000000 --- a/include/asm-sh/se/io.h +++ /dev/null @@ -1,35 +0,0 @@ -/* - * include/asm-sh/io_se.h - * - * Copyright 2000 Stuart Menefy (stuart.menefy@st.com) - * - * May be copied or modified under the terms of the GNU General Public - * License. See linux/COPYING for more information. - * - * IO functions for an Hitachi SolutionEngine - */ - -#ifndef _ASM_SH_IO_SE_H -#define _ASM_SH_IO_SE_H - -extern unsigned char se_inb(unsigned long port); -extern unsigned short se_inw(unsigned long port); -extern unsigned int se_inl(unsigned long port); - -extern void se_outb(unsigned char value, unsigned long port); -extern void se_outw(unsigned short value, unsigned long port); -extern void se_outl(unsigned int value, unsigned long port); - -extern unsigned char se_inb_p(unsigned long port); -extern void se_outb_p(unsigned char value, unsigned long port); - -extern void se_insb(unsigned long port, void *addr, unsigned long count); -extern void se_insw(unsigned long port, void *addr, unsigned long count); -extern void se_insl(unsigned long port, void *addr, unsigned long count); -extern void se_outsb(unsigned long port, const void *addr, unsigned long count); -extern void se_outsw(unsigned long port, const void *addr, unsigned long count); -extern void se_outsl(unsigned long port, const void *addr, unsigned long count); - -extern unsigned long se_isa_port2addr(unsigned long offset); - -#endif /* _ASM_SH_IO_SE_H */ diff --git a/include/asm-sh/se/se.h b/include/asm-sh/se/se.h deleted file mode 100644 index 791c5da0388a..000000000000 --- a/include/asm-sh/se/se.h +++ /dev/null @@ -1,77 +0,0 @@ -#ifndef __ASM_SH_HITACHI_SE_H -#define __ASM_SH_HITACHI_SE_H - -/* - * linux/include/asm-sh/hitachi_se.h - * - * Copyright (C) 2000 Kazumoto Kojima - * - * Hitachi SolutionEngine support - */ - -/* Box specific addresses. */ - -#define PA_ROM 0x00000000 /* EPROM */ -#define PA_ROM_SIZE 0x00400000 /* EPROM size 4M byte */ -#define PA_FROM 0x01000000 /* EPROM */ -#define PA_FROM_SIZE 0x00400000 /* EPROM size 4M byte */ -#define PA_EXT1 0x04000000 -#define PA_EXT1_SIZE 0x04000000 -#define PA_EXT2 0x08000000 -#define PA_EXT2_SIZE 0x04000000 -#define PA_SDRAM 0x0c000000 -#define PA_SDRAM_SIZE 0x04000000 - -#define PA_EXT4 0x12000000 -#define PA_EXT4_SIZE 0x02000000 -#define PA_EXT5 0x14000000 -#define PA_EXT5_SIZE 0x04000000 -#define PA_PCIC 0x18000000 /* MR-SHPC-01 PCMCIA */ - -#define PA_83902 0xb0000000 /* DP83902A */ -#define PA_83902_IF 0xb0040000 /* DP83902A remote io port */ -#define PA_83902_RST 0xb0080000 /* DP83902A reset port */ - -#define PA_SUPERIO 0xb0400000 /* SMC37C935A super io chip */ -#define PA_DIPSW0 0xb0800000 /* Dip switch 5,6 */ -#define PA_DIPSW1 0xb0800002 /* Dip switch 7,8 */ -#define PA_LED 0xb0c00000 /* LED */ -#if defined(CONFIG_CPU_SUBTYPE_SH7705) -#define PA_BCR 0xb0e00000 -#else -#define PA_BCR 0xb1400000 /* FPGA */ -#endif - -#define PA_MRSHPC 0xb83fffe0 /* MR-SHPC-01 PCMCIA controller */ -#define PA_MRSHPC_MW1 0xb8400000 /* MR-SHPC-01 memory window base */ -#define PA_MRSHPC_MW2 0xb8500000 /* MR-SHPC-01 attribute window base */ -#define PA_MRSHPC_IO 0xb8600000 /* MR-SHPC-01 I/O window base */ -#define MRSHPC_OPTION (PA_MRSHPC + 6) -#define MRSHPC_CSR (PA_MRSHPC + 8) -#define MRSHPC_ISR (PA_MRSHPC + 10) -#define MRSHPC_ICR (PA_MRSHPC + 12) -#define MRSHPC_CPWCR (PA_MRSHPC + 14) -#define MRSHPC_MW0CR1 (PA_MRSHPC + 16) -#define MRSHPC_MW1CR1 (PA_MRSHPC + 18) -#define MRSHPC_IOWCR1 (PA_MRSHPC + 20) -#define MRSHPC_MW0CR2 (PA_MRSHPC + 22) -#define MRSHPC_MW1CR2 (PA_MRSHPC + 24) -#define MRSHPC_IOWCR2 (PA_MRSHPC + 26) -#define MRSHPC_CDCR (PA_MRSHPC + 28) -#define MRSHPC_PCIC_INFO (PA_MRSHPC + 30) - -#define BCR_ILCRA (PA_BCR + 0) -#define BCR_ILCRB (PA_BCR + 2) -#define BCR_ILCRC (PA_BCR + 4) -#define BCR_ILCRD (PA_BCR + 6) -#define BCR_ILCRE (PA_BCR + 8) -#define BCR_ILCRF (PA_BCR + 10) -#define BCR_ILCRG (PA_BCR + 12) - -#if defined(CONFIG_CPU_SUBTYPE_SH7705) -#define IRQ_STNIC 12 -#else -#define IRQ_STNIC 10 -#endif - -#endif /* __ASM_SH_HITACHI_SE_H */ diff --git a/include/asm-sh/se7300.h b/include/asm-sh/se7300.h new file mode 100644 index 000000000000..4e24edccb30d --- /dev/null +++ b/include/asm-sh/se7300.h @@ -0,0 +1,64 @@ +#ifndef __ASM_SH_HITACHI_SE7300_H +#define __ASM_SH_HITACHI_SE7300_H + +/* + * linux/include/asm-sh/se/se7300.h + * + * Copyright (C) 2003 Takashi Kusuda + * + * SH-Mobile SolutionEngine 7300 support + */ + +/* Box specific addresses. */ + +/* Area 0 */ +#define PA_ROM 0x00000000 /* EPROM */ +#define PA_ROM_SIZE 0x00400000 /* EPROM size 4M byte(Actually 2MB) */ +#define PA_FROM 0x00400000 /* Flash ROM */ +#define PA_FROM_SIZE 0x00400000 /* Flash size 4M byte */ +#define PA_SRAM 0x00800000 /* SRAM */ +#define PA_FROM_SIZE 0x00400000 /* SRAM size 4M byte */ +/* Area 1 */ +#define PA_EXT1 0x04000000 +#define PA_EXT1_SIZE 0x04000000 +/* Area 2 */ +#define PA_EXT2 0x08000000 +#define PA_EXT2_SIZE 0x04000000 +/* Area 3 */ +#define PA_SDRAM 0x0c000000 +#define PA_SDRAM_SIZE 0x04000000 +/* Area 4 */ +#define PA_PCIC 0x10000000 /* MR-SHPC-01 PCMCIA */ +#define PA_MRSHPC 0xb03fffe0 /* MR-SHPC-01 PCMCIA controller */ +#define PA_MRSHPC_MW1 0xb0400000 /* MR-SHPC-01 memory window base */ +#define PA_MRSHPC_MW2 0xb0500000 /* MR-SHPC-01 attribute window base */ +#define PA_MRSHPC_IO 0xb0600000 /* MR-SHPC-01 I/O window base */ +#define MRSHPC_OPTION (PA_MRSHPC + 6) +#define MRSHPC_CSR (PA_MRSHPC + 8) +#define MRSHPC_ISR (PA_MRSHPC + 10) +#define MRSHPC_ICR (PA_MRSHPC + 12) +#define MRSHPC_CPWCR (PA_MRSHPC + 14) +#define MRSHPC_MW0CR1 (PA_MRSHPC + 16) +#define MRSHPC_MW1CR1 (PA_MRSHPC + 18) +#define MRSHPC_IOWCR1 (PA_MRSHPC + 20) +#define MRSHPC_MW0CR2 (PA_MRSHPC + 22) +#define MRSHPC_MW1CR2 (PA_MRSHPC + 24) +#define MRSHPC_IOWCR2 (PA_MRSHPC + 26) +#define MRSHPC_CDCR (PA_MRSHPC + 28) +#define MRSHPC_PCIC_INFO (PA_MRSHPC + 30) +#define PA_LED 0xb0800000 /* LED */ +#define PA_DIPSW 0xb0900000 /* Dip switch 31 */ +#define PA_EPLD_MODESET 0xb0a00000 /* FPGA Mode set register */ +#define PA_EPLD_ST1 0xb0a80000 /* FPGA Interrupt status register1 */ +#define PA_EPLD_ST2 0xb0ac0000 /* FPGA Interrupt status register2 */ +/* Area 5 */ +#define PA_EXT5 0x14000000 +#define PA_EXT5_SIZE 0x04000000 +/* Area 6 */ +#define PA_LCD1 0xb8000000 +#define PA_LCD2 0xb8800000 + +#define __IO_PREFIX sh7300se +#include + +#endif /* __ASM_SH_HITACHI_SE7300_H */ diff --git a/include/asm-sh/se7300/io.h b/include/asm-sh/se7300/io.h deleted file mode 100644 index c6af85529714..000000000000 --- a/include/asm-sh/se7300/io.h +++ /dev/null @@ -1,29 +0,0 @@ -/* - * include/asm-sh/se7300/io.h - * - * Copyright (C) 2003 Takashi Kusuda - * IO functions for SH-Mobile(SH7300) SolutionEngine - */ - -#ifndef _ASM_SH_IO_7300SE_H -#define _ASM_SH_IO_7300SE_H - -extern unsigned char sh7300se_inb(unsigned long port); -extern unsigned short sh7300se_inw(unsigned long port); -extern unsigned int sh7300se_inl(unsigned long port); - -extern void sh7300se_outb(unsigned char value, unsigned long port); -extern void sh7300se_outw(unsigned short value, unsigned long port); -extern void sh7300se_outl(unsigned int value, unsigned long port); - -extern unsigned char sh7300se_inb_p(unsigned long port); -extern void sh7300se_outb_p(unsigned char value, unsigned long port); - -extern void sh7300se_insb(unsigned long port, void *addr, unsigned long count); -extern void sh7300se_insw(unsigned long port, void *addr, unsigned long count); -extern void sh7300se_insl(unsigned long port, void *addr, unsigned long count); -extern void sh7300se_outsb(unsigned long port, const void *addr, unsigned long count); -extern void sh7300se_outsw(unsigned long port, const void *addr, unsigned long count); -extern void sh7300se_outsl(unsigned long port, const void *addr, unsigned long count); - -#endif /* _ASM_SH_IO_7300SE_H */ diff --git a/include/asm-sh/se7300/se7300.h b/include/asm-sh/se7300/se7300.h deleted file mode 100644 index 3ec1ded86c97..000000000000 --- a/include/asm-sh/se7300/se7300.h +++ /dev/null @@ -1,61 +0,0 @@ -#ifndef __ASM_SH_HITACHI_SE7300_H -#define __ASM_SH_HITACHI_SE7300_H - -/* - * linux/include/asm-sh/se/se7300.h - * - * Copyright (C) 2003 Takashi Kusuda - * - * SH-Mobile SolutionEngine 7300 support - */ - -/* Box specific addresses. */ - -/* Area 0 */ -#define PA_ROM 0x00000000 /* EPROM */ -#define PA_ROM_SIZE 0x00400000 /* EPROM size 4M byte(Actually 2MB) */ -#define PA_FROM 0x00400000 /* Flash ROM */ -#define PA_FROM_SIZE 0x00400000 /* Flash size 4M byte */ -#define PA_SRAM 0x00800000 /* SRAM */ -#define PA_FROM_SIZE 0x00400000 /* SRAM size 4M byte */ -/* Area 1 */ -#define PA_EXT1 0x04000000 -#define PA_EXT1_SIZE 0x04000000 -/* Area 2 */ -#define PA_EXT2 0x08000000 -#define PA_EXT2_SIZE 0x04000000 -/* Area 3 */ -#define PA_SDRAM 0x0c000000 -#define PA_SDRAM_SIZE 0x04000000 -/* Area 4 */ -#define PA_PCIC 0x10000000 /* MR-SHPC-01 PCMCIA */ -#define PA_MRSHPC 0xb03fffe0 /* MR-SHPC-01 PCMCIA controller */ -#define PA_MRSHPC_MW1 0xb0400000 /* MR-SHPC-01 memory window base */ -#define PA_MRSHPC_MW2 0xb0500000 /* MR-SHPC-01 attribute window base */ -#define PA_MRSHPC_IO 0xb0600000 /* MR-SHPC-01 I/O window base */ -#define MRSHPC_OPTION (PA_MRSHPC + 6) -#define MRSHPC_CSR (PA_MRSHPC + 8) -#define MRSHPC_ISR (PA_MRSHPC + 10) -#define MRSHPC_ICR (PA_MRSHPC + 12) -#define MRSHPC_CPWCR (PA_MRSHPC + 14) -#define MRSHPC_MW0CR1 (PA_MRSHPC + 16) -#define MRSHPC_MW1CR1 (PA_MRSHPC + 18) -#define MRSHPC_IOWCR1 (PA_MRSHPC + 20) -#define MRSHPC_MW0CR2 (PA_MRSHPC + 22) -#define MRSHPC_MW1CR2 (PA_MRSHPC + 24) -#define MRSHPC_IOWCR2 (PA_MRSHPC + 26) -#define MRSHPC_CDCR (PA_MRSHPC + 28) -#define MRSHPC_PCIC_INFO (PA_MRSHPC + 30) -#define PA_LED 0xb0800000 /* LED */ -#define PA_DIPSW 0xb0900000 /* Dip switch 31 */ -#define PA_EPLD_MODESET 0xb0a00000 /* FPGA Mode set register */ -#define PA_EPLD_ST1 0xb0a80000 /* FPGA Interrupt status register1 */ -#define PA_EPLD_ST2 0xb0ac0000 /* FPGA Interrupt status register2 */ -/* Area 5 */ -#define PA_EXT5 0x14000000 -#define PA_EXT5_SIZE 0x04000000 -/* Area 6 */ -#define PA_LCD1 0xb8000000 -#define PA_LCD2 0xb8800000 - -#endif /* __ASM_SH_HITACHI_SE7300_H */ diff --git a/include/asm-sh/se73180.h b/include/asm-sh/se73180.h new file mode 100644 index 000000000000..3a4acb3e38a1 --- /dev/null +++ b/include/asm-sh/se73180.h @@ -0,0 +1,65 @@ +#ifndef __ASM_SH_HITACHI_SE73180_H +#define __ASM_SH_HITACHI_SE73180_H + +/* + * include/asm-sh/se/se73180.h + * + * Copyright (C) 2003 Takashi Kusuda + * + * SH-Mobile SolutionEngine 73180 support + */ + +/* Box specific addresses. */ + +/* Area 0 */ +#define PA_ROM 0x00000000 /* EPROM */ +#define PA_ROM_SIZE 0x00400000 /* EPROM size 4M byte(Actually 2MB) */ +#define PA_FROM 0x00400000 /* Flash ROM */ +#define PA_FROM_SIZE 0x00400000 /* Flash size 4M byte */ +#define PA_SRAM 0x00800000 /* SRAM */ +#define PA_FROM_SIZE 0x00400000 /* SRAM size 4M byte */ +/* Area 1 */ +#define PA_EXT1 0x04000000 +#define PA_EXT1_SIZE 0x04000000 +/* Area 2 */ +#define PA_EXT2 0x08000000 +#define PA_EXT2_SIZE 0x04000000 +/* Area 3 */ +#define PA_SDRAM 0x0c000000 +#define PA_SDRAM_SIZE 0x04000000 +/* Area 4 */ +#define PA_PCIC 0x10000000 /* MR-SHPC-01 PCMCIA */ +#define PA_MRSHPC 0xb03fffe0 /* MR-SHPC-01 PCMCIA controller */ +#define PA_MRSHPC_MW1 0xb0400000 /* MR-SHPC-01 memory window base */ +#define PA_MRSHPC_MW2 0xb0500000 /* MR-SHPC-01 attribute window base */ +#define PA_MRSHPC_IO 0xb0600000 /* MR-SHPC-01 I/O window base */ +#define MRSHPC_OPTION (PA_MRSHPC + 6) +#define MRSHPC_CSR (PA_MRSHPC + 8) +#define MRSHPC_ISR (PA_MRSHPC + 10) +#define MRSHPC_ICR (PA_MRSHPC + 12) +#define MRSHPC_CPWCR (PA_MRSHPC + 14) +#define MRSHPC_MW0CR1 (PA_MRSHPC + 16) +#define MRSHPC_MW1CR1 (PA_MRSHPC + 18) +#define MRSHPC_IOWCR1 (PA_MRSHPC + 20) +#define MRSHPC_MW0CR2 (PA_MRSHPC + 22) +#define MRSHPC_MW1CR2 (PA_MRSHPC + 24) +#define MRSHPC_IOWCR2 (PA_MRSHPC + 26) +#define MRSHPC_CDCR (PA_MRSHPC + 28) +#define MRSHPC_PCIC_INFO (PA_MRSHPC + 30) +#define PA_LED 0xb0C00000 /* LED */ +#define LED_SHIFT 0 +#define PA_DIPSW 0xb0900000 /* Dip switch 31 */ +#define PA_EPLD_MODESET 0xb0a00000 /* FPGA Mode set register */ +#define PA_EPLD_ST1 0xb0a80000 /* FPGA Interrupt status register1 */ +#define PA_EPLD_ST2 0xb0ac0000 /* FPGA Interrupt status register2 */ +/* Area 5 */ +#define PA_EXT5 0x14000000 +#define PA_EXT5_SIZE 0x04000000 +/* Area 6 */ +#define PA_LCD1 0xb8000000 +#define PA_LCD2 0xb8800000 + +#define __IO_PREFIX sh73180se +#include + +#endif /* __ASM_SH_HITACHI_SE73180_H */ diff --git a/include/asm-sh/se73180/io.h b/include/asm-sh/se73180/io.h deleted file mode 100644 index c9cb1b9412c6..000000000000 --- a/include/asm-sh/se73180/io.h +++ /dev/null @@ -1,32 +0,0 @@ -/* - * include/asm-sh/se73180/io.h - * - * Copyright (C) 2003 Takashi Kusuda - * Based on include/asm-sh/se7300/io.h - * - * IO functions for SH-Mobile3(SH73180) SolutionEngine - * - */ - -#ifndef _ASM_SH_IO_73180SE_H -#define _ASM_SH_IO_73180SE_H - -extern unsigned char sh73180se_inb(unsigned long port); -extern unsigned short sh73180se_inw(unsigned long port); -extern unsigned int sh73180se_inl(unsigned long port); - -extern void sh73180se_outb(unsigned char value, unsigned long port); -extern void sh73180se_outw(unsigned short value, unsigned long port); -extern void sh73180se_outl(unsigned int value, unsigned long port); - -extern unsigned char sh73180se_inb_p(unsigned long port); -extern void sh73180se_outb_p(unsigned char value, unsigned long port); - -extern void sh73180se_insb(unsigned long port, void *addr, unsigned long count); -extern void sh73180se_insw(unsigned long port, void *addr, unsigned long count); -extern void sh73180se_insl(unsigned long port, void *addr, unsigned long count); -extern void sh73180se_outsb(unsigned long port, const void *addr, unsigned long count); -extern void sh73180se_outsw(unsigned long port, const void *addr, unsigned long count); -extern void sh73180se_outsl(unsigned long port, const void *addr, unsigned long count); - -#endif /* _ASM_SH_IO_73180SE_H */ diff --git a/include/asm-sh/se73180/se73180.h b/include/asm-sh/se73180/se73180.h deleted file mode 100644 index f5b93e39e768..000000000000 --- a/include/asm-sh/se73180/se73180.h +++ /dev/null @@ -1,62 +0,0 @@ -#ifndef __ASM_SH_HITACHI_SE73180_H -#define __ASM_SH_HITACHI_SE73180_H - -/* - * include/asm-sh/se/se73180.h - * - * Copyright (C) 2003 Takashi Kusuda - * - * SH-Mobile SolutionEngine 73180 support - */ - -/* Box specific addresses. */ - -/* Area 0 */ -#define PA_ROM 0x00000000 /* EPROM */ -#define PA_ROM_SIZE 0x00400000 /* EPROM size 4M byte(Actually 2MB) */ -#define PA_FROM 0x00400000 /* Flash ROM */ -#define PA_FROM_SIZE 0x00400000 /* Flash size 4M byte */ -#define PA_SRAM 0x00800000 /* SRAM */ -#define PA_FROM_SIZE 0x00400000 /* SRAM size 4M byte */ -/* Area 1 */ -#define PA_EXT1 0x04000000 -#define PA_EXT1_SIZE 0x04000000 -/* Area 2 */ -#define PA_EXT2 0x08000000 -#define PA_EXT2_SIZE 0x04000000 -/* Area 3 */ -#define PA_SDRAM 0x0c000000 -#define PA_SDRAM_SIZE 0x04000000 -/* Area 4 */ -#define PA_PCIC 0x10000000 /* MR-SHPC-01 PCMCIA */ -#define PA_MRSHPC 0xb03fffe0 /* MR-SHPC-01 PCMCIA controller */ -#define PA_MRSHPC_MW1 0xb0400000 /* MR-SHPC-01 memory window base */ -#define PA_MRSHPC_MW2 0xb0500000 /* MR-SHPC-01 attribute window base */ -#define PA_MRSHPC_IO 0xb0600000 /* MR-SHPC-01 I/O window base */ -#define MRSHPC_OPTION (PA_MRSHPC + 6) -#define MRSHPC_CSR (PA_MRSHPC + 8) -#define MRSHPC_ISR (PA_MRSHPC + 10) -#define MRSHPC_ICR (PA_MRSHPC + 12) -#define MRSHPC_CPWCR (PA_MRSHPC + 14) -#define MRSHPC_MW0CR1 (PA_MRSHPC + 16) -#define MRSHPC_MW1CR1 (PA_MRSHPC + 18) -#define MRSHPC_IOWCR1 (PA_MRSHPC + 20) -#define MRSHPC_MW0CR2 (PA_MRSHPC + 22) -#define MRSHPC_MW1CR2 (PA_MRSHPC + 24) -#define MRSHPC_IOWCR2 (PA_MRSHPC + 26) -#define MRSHPC_CDCR (PA_MRSHPC + 28) -#define MRSHPC_PCIC_INFO (PA_MRSHPC + 30) -#define PA_LED 0xb0C00000 /* LED */ -#define LED_SHIFT 0 -#define PA_DIPSW 0xb0900000 /* Dip switch 31 */ -#define PA_EPLD_MODESET 0xb0a00000 /* FPGA Mode set register */ -#define PA_EPLD_ST1 0xb0a80000 /* FPGA Interrupt status register1 */ -#define PA_EPLD_ST2 0xb0ac0000 /* FPGA Interrupt status register2 */ -/* Area 5 */ -#define PA_EXT5 0x14000000 -#define PA_EXT5_SIZE 0x04000000 -/* Area 6 */ -#define PA_LCD1 0xb8000000 -#define PA_LCD2 0xb8800000 - -#endif /* __ASM_SH_HITACHI_SE73180_H */ diff --git a/include/asm-sh/se7751.h b/include/asm-sh/se7751.h new file mode 100644 index 000000000000..88cd379d9084 --- /dev/null +++ b/include/asm-sh/se7751.h @@ -0,0 +1,71 @@ +#ifndef __ASM_SH_HITACHI_7751SE_H +#define __ASM_SH_HITACHI_7751SE_H + +/* + * linux/include/asm-sh/hitachi_7751se.h + * + * Copyright (C) 2000 Kazumoto Kojima + * + * Hitachi SolutionEngine support + + * Modified for 7751 Solution Engine by + * Ian da Silva and Jeremy Siegel, 2001. + */ + +/* Box specific addresses. */ + +#define PA_ROM 0x00000000 /* EPROM */ +#define PA_ROM_SIZE 0x00400000 /* EPROM size 4M byte */ +#define PA_FROM 0x01000000 /* EPROM */ +#define PA_FROM_SIZE 0x00400000 /* EPROM size 4M byte */ +#define PA_EXT1 0x04000000 +#define PA_EXT1_SIZE 0x04000000 +#define PA_EXT2 0x08000000 +#define PA_EXT2_SIZE 0x04000000 +#define PA_SDRAM 0x0c000000 +#define PA_SDRAM_SIZE 0x04000000 + +#define PA_EXT4 0x12000000 +#define PA_EXT4_SIZE 0x02000000 +#define PA_EXT5 0x14000000 +#define PA_EXT5_SIZE 0x04000000 +#define PA_PCIC 0x18000000 /* MR-SHPC-01 PCMCIA */ + +#define PA_DIPSW0 0xb9000000 /* Dip switch 5,6 */ +#define PA_DIPSW1 0xb9000002 /* Dip switch 7,8 */ +#define PA_LED 0xba000000 /* LED */ +#define PA_BCR 0xbb000000 /* FPGA on the MS7751SE01 */ + +#define PA_MRSHPC 0xb83fffe0 /* MR-SHPC-01 PCMCIA controler */ +#define PA_MRSHPC_MW1 0xb8400000 /* MR-SHPC-01 memory window base */ +#define PA_MRSHPC_MW2 0xb8500000 /* MR-SHPC-01 attribute window base */ +#define PA_MRSHPC_IO 0xb8600000 /* MR-SHPC-01 I/O window base */ +#define MRSHPC_MODE (PA_MRSHPC + 4) +#define MRSHPC_OPTION (PA_MRSHPC + 6) +#define MRSHPC_CSR (PA_MRSHPC + 8) +#define MRSHPC_ISR (PA_MRSHPC + 10) +#define MRSHPC_ICR (PA_MRSHPC + 12) +#define MRSHPC_CPWCR (PA_MRSHPC + 14) +#define MRSHPC_MW0CR1 (PA_MRSHPC + 16) +#define MRSHPC_MW1CR1 (PA_MRSHPC + 18) +#define MRSHPC_IOWCR1 (PA_MRSHPC + 20) +#define MRSHPC_MW0CR2 (PA_MRSHPC + 22) +#define MRSHPC_MW1CR2 (PA_MRSHPC + 24) +#define MRSHPC_IOWCR2 (PA_MRSHPC + 26) +#define MRSHPC_CDCR (PA_MRSHPC + 28) +#define MRSHPC_PCIC_INFO (PA_MRSHPC + 30) + +#define BCR_ILCRA (PA_BCR + 0) +#define BCR_ILCRB (PA_BCR + 2) +#define BCR_ILCRC (PA_BCR + 4) +#define BCR_ILCRD (PA_BCR + 6) +#define BCR_ILCRE (PA_BCR + 8) +#define BCR_ILCRF (PA_BCR + 10) +#define BCR_ILCRG (PA_BCR + 12) + +#define IRQ_79C973 13 + +#define __IO_PREFIX sh7751se +#include + +#endif /* __ASM_SH_HITACHI_7751SE_H */ diff --git a/include/asm-sh/se7751/io.h b/include/asm-sh/se7751/io.h deleted file mode 100644 index 78d8f5744bc5..000000000000 --- a/include/asm-sh/se7751/io.h +++ /dev/null @@ -1,42 +0,0 @@ -/* - * include/asm-sh/io_7751se.h - * - * Modified version of io_se.h for the 7751se-specific functions. - * - * May be copied or modified under the terms of the GNU General Public - * License. See linux/COPYING for more information. - * - * IO functions for an Hitachi SolutionEngine - */ - -#ifndef _ASM_SH_IO_7751SE_H -#define _ASM_SH_IO_7751SE_H - -extern unsigned char sh7751se_inb(unsigned long port); -extern unsigned short sh7751se_inw(unsigned long port); -extern unsigned int sh7751se_inl(unsigned long port); - -extern void sh7751se_outb(unsigned char value, unsigned long port); -extern void sh7751se_outw(unsigned short value, unsigned long port); -extern void sh7751se_outl(unsigned int value, unsigned long port); - -extern unsigned char sh7751se_inb_p(unsigned long port); -extern void sh7751se_outb_p(unsigned char value, unsigned long port); - -extern void sh7751se_insb(unsigned long port, void *addr, unsigned long count); -extern void sh7751se_insw(unsigned long port, void *addr, unsigned long count); -extern void sh7751se_insl(unsigned long port, void *addr, unsigned long count); -extern void sh7751se_outsb(unsigned long port, const void *addr, unsigned long count); -extern void sh7751se_outsw(unsigned long port, const void *addr, unsigned long count); -extern void sh7751se_outsl(unsigned long port, const void *addr, unsigned long count); - -extern unsigned char sh7751se_readb(unsigned long addr); -extern unsigned short sh7751se_readw(unsigned long addr); -extern unsigned int sh7751se_readl(unsigned long addr); -extern void sh7751se_writeb(unsigned char b, unsigned long addr); -extern void sh7751se_writew(unsigned short b, unsigned long addr); -extern void sh7751se_writel(unsigned int b, unsigned long addr); - -extern unsigned long sh7751se_isa_port2addr(unsigned long offset); - -#endif /* _ASM_SH_IO_7751SE_H */ diff --git a/include/asm-sh/se7751/se7751.h b/include/asm-sh/se7751/se7751.h deleted file mode 100644 index 738e22bebdfb..000000000000 --- a/include/asm-sh/se7751/se7751.h +++ /dev/null @@ -1,68 +0,0 @@ -#ifndef __ASM_SH_HITACHI_7751SE_H -#define __ASM_SH_HITACHI_7751SE_H - -/* - * linux/include/asm-sh/hitachi_7751se.h - * - * Copyright (C) 2000 Kazumoto Kojima - * - * Hitachi SolutionEngine support - - * Modified for 7751 Solution Engine by - * Ian da Silva and Jeremy Siegel, 2001. - */ - -/* Box specific addresses. */ - -#define PA_ROM 0x00000000 /* EPROM */ -#define PA_ROM_SIZE 0x00400000 /* EPROM size 4M byte */ -#define PA_FROM 0x01000000 /* EPROM */ -#define PA_FROM_SIZE 0x00400000 /* EPROM size 4M byte */ -#define PA_EXT1 0x04000000 -#define PA_EXT1_SIZE 0x04000000 -#define PA_EXT2 0x08000000 -#define PA_EXT2_SIZE 0x04000000 -#define PA_SDRAM 0x0c000000 -#define PA_SDRAM_SIZE 0x04000000 - -#define PA_EXT4 0x12000000 -#define PA_EXT4_SIZE 0x02000000 -#define PA_EXT5 0x14000000 -#define PA_EXT5_SIZE 0x04000000 -#define PA_PCIC 0x18000000 /* MR-SHPC-01 PCMCIA */ - -#define PA_DIPSW0 0xb9000000 /* Dip switch 5,6 */ -#define PA_DIPSW1 0xb9000002 /* Dip switch 7,8 */ -#define PA_LED 0xba000000 /* LED */ -#define PA_BCR 0xbb000000 /* FPGA on the MS7751SE01 */ - -#define PA_MRSHPC 0xb83fffe0 /* MR-SHPC-01 PCMCIA controler */ -#define PA_MRSHPC_MW1 0xb8400000 /* MR-SHPC-01 memory window base */ -#define PA_MRSHPC_MW2 0xb8500000 /* MR-SHPC-01 attribute window base */ -#define PA_MRSHPC_IO 0xb8600000 /* MR-SHPC-01 I/O window base */ -#define MRSHPC_MODE (PA_MRSHPC + 4) -#define MRSHPC_OPTION (PA_MRSHPC + 6) -#define MRSHPC_CSR (PA_MRSHPC + 8) -#define MRSHPC_ISR (PA_MRSHPC + 10) -#define MRSHPC_ICR (PA_MRSHPC + 12) -#define MRSHPC_CPWCR (PA_MRSHPC + 14) -#define MRSHPC_MW0CR1 (PA_MRSHPC + 16) -#define MRSHPC_MW1CR1 (PA_MRSHPC + 18) -#define MRSHPC_IOWCR1 (PA_MRSHPC + 20) -#define MRSHPC_MW0CR2 (PA_MRSHPC + 22) -#define MRSHPC_MW1CR2 (PA_MRSHPC + 24) -#define MRSHPC_IOWCR2 (PA_MRSHPC + 26) -#define MRSHPC_CDCR (PA_MRSHPC + 28) -#define MRSHPC_PCIC_INFO (PA_MRSHPC + 30) - -#define BCR_ILCRA (PA_BCR + 0) -#define BCR_ILCRB (PA_BCR + 2) -#define BCR_ILCRC (PA_BCR + 4) -#define BCR_ILCRD (PA_BCR + 6) -#define BCR_ILCRE (PA_BCR + 8) -#define BCR_ILCRF (PA_BCR + 10) -#define BCR_ILCRG (PA_BCR + 12) - -#define IRQ_79C973 13 - -#endif /* __ASM_SH_HITACHI_7751SE_H */ diff --git a/include/asm-sh/sh03/io.h b/include/asm-sh/sh03/io.h index 25792e9831ea..df3b187ef883 100644 --- a/include/asm-sh/sh03/io.h +++ b/include/asm-sh/sh03/io.h @@ -33,14 +33,6 @@ #define IRL3_IPR_POS 0 #define IRL3_PRIORITY 4 - -extern unsigned long sh03_isa_port2addr(unsigned long offset); - -extern void setup_sh03(void); -extern void init_sh03_IRQ(void); -extern void heartbeat_sh03(void); - -extern void sh03_rtc_gettimeofday(struct timeval *tv); -extern int sh03_rtc_settimeofday(const struct timeval *tv); +void heartbeat_sh03(void); #endif /* _ASM_SH_IO_SH03_H */ diff --git a/include/asm-sh/snapgear.h b/include/asm-sh/snapgear.h new file mode 100644 index 000000000000..6b5e4ddc073a --- /dev/null +++ b/include/asm-sh/snapgear.h @@ -0,0 +1,79 @@ +/* + * include/asm-sh/snapgear/io.h + * + * Modified version of io_se.h for the snapgear-specific functions. + * + * May be copied or modified under the terms of the GNU General Public + * License. See linux/COPYING for more information. + * + * IO functions for a SnapGear + */ + +#ifndef _ASM_SH_IO_SNAPGEAR_H +#define _ASM_SH_IO_SNAPGEAR_H + +#if defined(CONFIG_CPU_SH4) +/* + * The external interrupt lines, these take up ints 0 - 15 inclusive + * depending on the priority for the interrupt. In fact the priority + * is the interrupt :-) + */ + +#define IRL0_IRQ 2 +#define IRL0_IPR_ADDR INTC_IPRD +#define IRL0_IPR_POS 3 +#define IRL0_PRIORITY 13 + +#define IRL1_IRQ 5 +#define IRL1_IPR_ADDR INTC_IPRD +#define IRL1_IPR_POS 2 +#define IRL1_PRIORITY 10 + +#define IRL2_IRQ 8 +#define IRL2_IPR_ADDR INTC_IPRD +#define IRL2_IPR_POS 1 +#define IRL2_PRIORITY 7 + +#define IRL3_IRQ 11 +#define IRL3_IPR_ADDR INTC_IPRD +#define IRL3_IPR_POS 0 +#define IRL3_PRIORITY 4 +#endif + +#define __IO_PREFIX snapgear +#include + +#ifdef CONFIG_SH_SECUREEDGE5410 +/* + * We need to remember what was written to the ioport as some bits + * are shared with other functions and you cannot read back what was + * written :-| + * + * Bit Read Write + * ----------------------------------------------- + * D0 DCD on ttySC1 power + * D1 Reset Switch heatbeat + * D2 ttySC0 CTS (7100) LAN + * D3 - WAN + * D4 ttySC0 DCD (7100) CONSOLE + * D5 - ONLINE + * D6 - VPN + * D7 - DTR on ttySC1 + * D8 - ttySC0 RTS (7100) + * D9 - ttySC0 DTR (7100) + * D10 - RTC SCLK + * D11 RTC DATA RTC DATA + * D12 - RTS RESET + */ + +#define SECUREEDGE_IOPORT_ADDR ((volatile short *) 0xb0000000) +extern unsigned short secureedge5410_ioport; + +#define SECUREEDGE_WRITE_IOPORT(val, mask) (*SECUREEDGE_IOPORT_ADDR = \ + (secureedge5410_ioport = \ + ((secureedge5410_ioport & ~(mask)) | ((val) & (mask))))) +#define SECUREEDGE_READ_IOPORT() \ + ((*SECUREEDGE_IOPORT_ADDR&0x0817) | (secureedge5410_ioport&~0x0817)) +#endif + +#endif /* _ASM_SH_IO_SNAPGEAR_H */ diff --git a/include/asm-sh/snapgear/io.h b/include/asm-sh/snapgear/io.h deleted file mode 100644 index bfa97ac06280..000000000000 --- a/include/asm-sh/snapgear/io.h +++ /dev/null @@ -1,92 +0,0 @@ -/* - * include/asm-sh/snapgear/io.h - * - * Modified version of io_se.h for the snapgear-specific functions. - * - * May be copied or modified under the terms of the GNU General Public - * License. See linux/COPYING for more information. - * - * IO functions for a SnapGear - */ - -#ifndef _ASM_SH_IO_SNAPGEAR_H -#define _ASM_SH_IO_SNAPGEAR_H - -#if defined(CONFIG_CPU_SH4) -/* - * The external interrupt lines, these take up ints 0 - 15 inclusive - * depending on the priority for the interrupt. In fact the priority - * is the interrupt :-) - */ - -#define IRL0_IRQ 2 -#define IRL0_IPR_ADDR INTC_IPRD -#define IRL0_IPR_POS 3 -#define IRL0_PRIORITY 13 - -#define IRL1_IRQ 5 -#define IRL1_IPR_ADDR INTC_IPRD -#define IRL1_IPR_POS 2 -#define IRL1_PRIORITY 10 - -#define IRL2_IRQ 8 -#define IRL2_IPR_ADDR INTC_IPRD -#define IRL2_IPR_POS 1 -#define IRL2_PRIORITY 7 - -#define IRL3_IRQ 11 -#define IRL3_IPR_ADDR INTC_IPRD -#define IRL3_IPR_POS 0 -#define IRL3_PRIORITY 4 -#endif - -extern unsigned char snapgear_inb(unsigned long port); -extern unsigned short snapgear_inw(unsigned long port); -extern unsigned int snapgear_inl(unsigned long port); - -extern void snapgear_outb(unsigned char value, unsigned long port); -extern void snapgear_outw(unsigned short value, unsigned long port); -extern void snapgear_outl(unsigned int value, unsigned long port); - -extern unsigned char snapgear_inb_p(unsigned long port); -extern void snapgear_outb_p(unsigned char value, unsigned long port); - -extern void snapgear_insl(unsigned long port, void *addr, unsigned long count); -extern void snapgear_outsl(unsigned long port, const void *addr, unsigned long count); - -extern unsigned long snapgear_isa_port2addr(unsigned long offset); - -#ifdef CONFIG_SH_SECUREEDGE5410 -/* - * We need to remember what was written to the ioport as some bits - * are shared with other functions and you cannot read back what was - * written :-| - * - * Bit Read Write - * ----------------------------------------------- - * D0 DCD on ttySC1 power - * D1 Reset Switch heatbeat - * D2 ttySC0 CTS (7100) LAN - * D3 - WAN - * D4 ttySC0 DCD (7100) CONSOLE - * D5 - ONLINE - * D6 - VPN - * D7 - DTR on ttySC1 - * D8 - ttySC0 RTS (7100) - * D9 - ttySC0 DTR (7100) - * D10 - RTC SCLK - * D11 RTC DATA RTC DATA - * D12 - RTS RESET - */ - - #define SECUREEDGE_IOPORT_ADDR ((volatile short *) 0xb0000000) - extern unsigned short secureedge5410_ioport; - - #define SECUREEDGE_WRITE_IOPORT(val, mask) (*SECUREEDGE_IOPORT_ADDR = \ - (secureedge5410_ioport = \ - ((secureedge5410_ioport & ~(mask)) | ((val) & (mask))))) - #define SECUREEDGE_READ_IOPORT() \ - ((*SECUREEDGE_IOPORT_ADDR&0x0817) | (secureedge5410_ioport&~0x0817)) -#endif - -#endif /* _ASM_SH_IO_SNAPGEAR_H */ diff --git a/include/asm-sh/systemh/7751systemh.h b/include/asm-sh/systemh/7751systemh.h deleted file mode 100644 index 4170531bdbd9..000000000000 --- a/include/asm-sh/systemh/7751systemh.h +++ /dev/null @@ -1,68 +0,0 @@ -#ifndef __ASM_SH_SYSTEMH_7751SYSTEMH_H -#define __ASM_SH_SYSTEMH_7751SYSTEMH_H - -/* - * linux/include/asm-sh/systemh/7751systemh.h - * - * Copyright (C) 2000 Kazumoto Kojima - * - * Hitachi SystemH support - - * Modified for 7751 SystemH by - * Jonathan Short, 2002. - */ - -/* Box specific addresses. */ - -#define PA_ROM 0x00000000 /* EPROM */ -#define PA_ROM_SIZE 0x00400000 /* EPROM size 4M byte */ -#define PA_FROM 0x01000000 /* EPROM */ -#define PA_FROM_SIZE 0x00400000 /* EPROM size 4M byte */ -#define PA_EXT1 0x04000000 -#define PA_EXT1_SIZE 0x04000000 -#define PA_EXT2 0x08000000 -#define PA_EXT2_SIZE 0x04000000 -#define PA_SDRAM 0x0c000000 -#define PA_SDRAM_SIZE 0x04000000 - -#define PA_EXT4 0x12000000 -#define PA_EXT4_SIZE 0x02000000 -#define PA_EXT5 0x14000000 -#define PA_EXT5_SIZE 0x04000000 -#define PA_PCIC 0x18000000 /* MR-SHPC-01 PCMCIA */ - -#define PA_DIPSW0 0xb9000000 /* Dip switch 5,6 */ -#define PA_DIPSW1 0xb9000002 /* Dip switch 7,8 */ -#define PA_LED 0xba000000 /* LED */ -#define PA_BCR 0xbb000000 /* FPGA on the MS7751SE01 */ - -#define PA_MRSHPC 0xb83fffe0 /* MR-SHPC-01 PCMCIA controler */ -#define PA_MRSHPC_MW1 0xb8400000 /* MR-SHPC-01 memory window base */ -#define PA_MRSHPC_MW2 0xb8500000 /* MR-SHPC-01 attribute window base */ -#define PA_MRSHPC_IO 0xb8600000 /* MR-SHPC-01 I/O window base */ -#define MRSHPC_MODE (PA_MRSHPC + 4) -#define MRSHPC_OPTION (PA_MRSHPC + 6) -#define MRSHPC_CSR (PA_MRSHPC + 8) -#define MRSHPC_ISR (PA_MRSHPC + 10) -#define MRSHPC_ICR (PA_MRSHPC + 12) -#define MRSHPC_CPWCR (PA_MRSHPC + 14) -#define MRSHPC_MW0CR1 (PA_MRSHPC + 16) -#define MRSHPC_MW1CR1 (PA_MRSHPC + 18) -#define MRSHPC_IOWCR1 (PA_MRSHPC + 20) -#define MRSHPC_MW0CR2 (PA_MRSHPC + 22) -#define MRSHPC_MW1CR2 (PA_MRSHPC + 24) -#define MRSHPC_IOWCR2 (PA_MRSHPC + 26) -#define MRSHPC_CDCR (PA_MRSHPC + 28) -#define MRSHPC_PCIC_INFO (PA_MRSHPC + 30) - -#define BCR_ILCRA (PA_BCR + 0) -#define BCR_ILCRB (PA_BCR + 2) -#define BCR_ILCRC (PA_BCR + 4) -#define BCR_ILCRD (PA_BCR + 6) -#define BCR_ILCRE (PA_BCR + 8) -#define BCR_ILCRF (PA_BCR + 10) -#define BCR_ILCRG (PA_BCR + 12) - -#define IRQ_79C973 13 - -#endif /* __ASM_SH_SYSTEMH_7751SYSTEMH_H */ diff --git a/include/asm-sh/systemh/io.h b/include/asm-sh/systemh/io.h deleted file mode 100644 index 327849b49db8..000000000000 --- a/include/asm-sh/systemh/io.h +++ /dev/null @@ -1,43 +0,0 @@ -/* - * include/asm-sh/systemh/io.h - * - * Stupid I/O definitions for SystemH, cloned from SE7751. - * - * Copyright (C) 2003 Paul Mundt - * - * 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 __ASM_SH_SYSTEMH_IO_H -#define __ASM_SH_SYSTEMH_IO_H - -extern unsigned char sh7751systemh_inb(unsigned long port); -extern unsigned short sh7751systemh_inw(unsigned long port); -extern unsigned int sh7751systemh_inl(unsigned long port); - -extern void sh7751systemh_outb(unsigned char value, unsigned long port); -extern void sh7751systemh_outw(unsigned short value, unsigned long port); -extern void sh7751systemh_outl(unsigned int value, unsigned long port); - -extern unsigned char sh7751systemh_inb_p(unsigned long port); -extern void sh7751systemh_outb_p(unsigned char value, unsigned long port); - -extern void sh7751systemh_insb(unsigned long port, void *addr, unsigned long count); -extern void sh7751systemh_insw(unsigned long port, void *addr, unsigned long count); -extern void sh7751systemh_insl(unsigned long port, void *addr, unsigned long count); -extern void sh7751systemh_outsb(unsigned long port, const void *addr, unsigned long count); -extern void sh7751systemh_outsw(unsigned long port, const void *addr, unsigned long count); -extern void sh7751systemh_outsl(unsigned long port, const void *addr, unsigned long count); - -extern unsigned char sh7751systemh_readb(unsigned long addr); -extern unsigned short sh7751systemh_readw(unsigned long addr); -extern unsigned int sh7751systemh_readl(unsigned long addr); -extern void sh7751systemh_writeb(unsigned char b, unsigned long addr); -extern void sh7751systemh_writew(unsigned short b, unsigned long addr); -extern void sh7751systemh_writel(unsigned int b, unsigned long addr); - -extern unsigned long sh7751systemh_isa_port2addr(unsigned long offset); - -#endif /* __ASM_SH_SYSTEMH_IO_H */ - diff --git a/include/asm-sh/systemh7751.h b/include/asm-sh/systemh7751.h new file mode 100644 index 000000000000..b143bb2a2ca7 --- /dev/null +++ b/include/asm-sh/systemh7751.h @@ -0,0 +1,71 @@ +#ifndef __ASM_SH_SYSTEMH_7751SYSTEMH_H +#define __ASM_SH_SYSTEMH_7751SYSTEMH_H + +/* + * linux/include/asm-sh/systemh/7751systemh.h + * + * Copyright (C) 2000 Kazumoto Kojima + * + * Hitachi SystemH support + + * Modified for 7751 SystemH by + * Jonathan Short, 2002. + */ + +/* Box specific addresses. */ + +#define PA_ROM 0x00000000 /* EPROM */ +#define PA_ROM_SIZE 0x00400000 /* EPROM size 4M byte */ +#define PA_FROM 0x01000000 /* EPROM */ +#define PA_FROM_SIZE 0x00400000 /* EPROM size 4M byte */ +#define PA_EXT1 0x04000000 +#define PA_EXT1_SIZE 0x04000000 +#define PA_EXT2 0x08000000 +#define PA_EXT2_SIZE 0x04000000 +#define PA_SDRAM 0x0c000000 +#define PA_SDRAM_SIZE 0x04000000 + +#define PA_EXT4 0x12000000 +#define PA_EXT4_SIZE 0x02000000 +#define PA_EXT5 0x14000000 +#define PA_EXT5_SIZE 0x04000000 +#define PA_PCIC 0x18000000 /* MR-SHPC-01 PCMCIA */ + +#define PA_DIPSW0 0xb9000000 /* Dip switch 5,6 */ +#define PA_DIPSW1 0xb9000002 /* Dip switch 7,8 */ +#define PA_LED 0xba000000 /* LED */ +#define PA_BCR 0xbb000000 /* FPGA on the MS7751SE01 */ + +#define PA_MRSHPC 0xb83fffe0 /* MR-SHPC-01 PCMCIA controler */ +#define PA_MRSHPC_MW1 0xb8400000 /* MR-SHPC-01 memory window base */ +#define PA_MRSHPC_MW2 0xb8500000 /* MR-SHPC-01 attribute window base */ +#define PA_MRSHPC_IO 0xb8600000 /* MR-SHPC-01 I/O window base */ +#define MRSHPC_MODE (PA_MRSHPC + 4) +#define MRSHPC_OPTION (PA_MRSHPC + 6) +#define MRSHPC_CSR (PA_MRSHPC + 8) +#define MRSHPC_ISR (PA_MRSHPC + 10) +#define MRSHPC_ICR (PA_MRSHPC + 12) +#define MRSHPC_CPWCR (PA_MRSHPC + 14) +#define MRSHPC_MW0CR1 (PA_MRSHPC + 16) +#define MRSHPC_MW1CR1 (PA_MRSHPC + 18) +#define MRSHPC_IOWCR1 (PA_MRSHPC + 20) +#define MRSHPC_MW0CR2 (PA_MRSHPC + 22) +#define MRSHPC_MW1CR2 (PA_MRSHPC + 24) +#define MRSHPC_IOWCR2 (PA_MRSHPC + 26) +#define MRSHPC_CDCR (PA_MRSHPC + 28) +#define MRSHPC_PCIC_INFO (PA_MRSHPC + 30) + +#define BCR_ILCRA (PA_BCR + 0) +#define BCR_ILCRB (PA_BCR + 2) +#define BCR_ILCRC (PA_BCR + 4) +#define BCR_ILCRD (PA_BCR + 6) +#define BCR_ILCRE (PA_BCR + 8) +#define BCR_ILCRF (PA_BCR + 10) +#define BCR_ILCRG (PA_BCR + 12) + +#define IRQ_79C973 13 + +#define __IO_PREFIX sh7751systemh +#include + +#endif /* __ASM_SH_SYSTEMH_7751SYSTEMH_H */ -- cgit v1.2.3 From d7c30c682a278abe1a52db83f69efec1a9d8f8c2 Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Wed, 27 Sep 2006 15:49:57 +0900 Subject: sh: Store Queue API rework. Rewrite the store queue API for a per-cpu interface in the driver model. The old miscdevice is dropped, due to TASK_SIZE limitations, and no one was using it anyways. Carve up and allocate store queue space with a bitmap, back sq mapping objects with a slab cache, and let userspace worry about its own prefetching. Signed-off-by: Paul Mundt --- arch/sh/kernel/cpu/sh4/sq.c | 542 ++++++++++++++++++++------------------------ include/asm-sh/cpu-sh4/sq.h | 23 +- 2 files changed, 251 insertions(+), 314 deletions(-) (limited to 'include') diff --git a/arch/sh/kernel/cpu/sh4/sq.c b/arch/sh/kernel/cpu/sh4/sq.c index b148966dd7c7..7bcc73f9b8df 100644 --- a/arch/sh/kernel/cpu/sh4/sq.c +++ b/arch/sh/kernel/cpu/sh4/sq.c @@ -1,50 +1,52 @@ /* - * arch/sh/kernel/cpu/sq.c + * arch/sh/kernel/cpu/sh4/sq.c * * General management API for SH-4 integrated Store Queues * - * Copyright (C) 2001, 2002, 2003, 2004 Paul Mundt + * Copyright (C) 2001 - 2006 Paul Mundt * Copyright (C) 2001, 2002 M. R. Brown * - * Some of this code has been adopted directly from the old arch/sh/mm/sq.c - * hack that was part of the LinuxDC project. For all intents and purposes, - * this is a completely new interface that really doesn't have much in common - * with the old zone-based approach at all. In fact, it's only listed here for - * general completeness. - * * 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 -#include #include #include #include #include #include -#include #include -static LIST_HEAD(sq_mapping_list); +struct sq_mapping; + +struct sq_mapping { + const char *name; + + unsigned long sq_addr; + unsigned long addr; + unsigned int size; + + struct sq_mapping *next; +}; + +static struct sq_mapping *sq_mapping_list; static DEFINE_SPINLOCK(sq_mapping_lock); +static kmem_cache_t *sq_cache; +static unsigned long *sq_bitmap; -/** - * sq_flush - Flush (prefetch) the store queue cache - * @addr: the store queue address to flush - * - * Executes a prefetch instruction on the specified store queue cache, - * so that the cached data is written to physical memory. - */ -inline void sq_flush(void *addr) -{ - __asm__ __volatile__ ("pref @%0" : : "r" (addr) : "memory"); -} +#define store_queue_barrier() \ +do { \ + (void)ctrl_inl(P4SEG_STORE_QUE); \ + ctrl_outl(0, P4SEG_STORE_QUE + 0); \ + ctrl_outl(0, P4SEG_STORE_QUE + 8); \ +} while (0); /** * sq_flush_range - Flush (prefetch) a specific SQ range @@ -57,154 +59,73 @@ inline void sq_flush(void *addr) void sq_flush_range(unsigned long start, unsigned int len) { volatile unsigned long *sq = (unsigned long *)start; - unsigned long dummy; /* Flush the queues */ for (len >>= 5; len--; sq += 8) - sq_flush((void *)sq); + prefetchw((void *)sq); /* Wait for completion */ - dummy = ctrl_inl(P4SEG_STORE_QUE); - - ctrl_outl(0, P4SEG_STORE_QUE + 0); - ctrl_outl(0, P4SEG_STORE_QUE + 8); + store_queue_barrier(); } -static struct sq_mapping *__sq_alloc_mapping(unsigned long virt, unsigned long phys, unsigned long size, const char *name) +static inline void sq_mapping_list_add(struct sq_mapping *map) { - struct sq_mapping *map; - - if (virt + size > SQ_ADDRMAX) - return ERR_PTR(-ENOSPC); + struct sq_mapping **p, *tmp; - map = kmalloc(sizeof(struct sq_mapping), GFP_KERNEL); - if (!map) - return ERR_PTR(-ENOMEM); + spin_lock_irq(&sq_mapping_lock); - INIT_LIST_HEAD(&map->list); + p = &sq_mapping_list; + while ((tmp = *p) != NULL) + p = &tmp->next; - map->sq_addr = virt; - map->addr = phys; - map->size = size + 1; - map->name = name; + map->next = tmp; + *p = map; - list_add(&map->list, &sq_mapping_list); - - return map; + spin_unlock_irq(&sq_mapping_lock); } -static unsigned long __sq_get_next_addr(void) +static inline void sq_mapping_list_del(struct sq_mapping *map) { - if (!list_empty(&sq_mapping_list)) { - struct list_head *pos, *tmp; - - /* - * Read one off the list head, as it will have the highest - * mapped allocation. Set the next one up right above it. - * - * This is somewhat sub-optimal, as we don't look at - * gaps between allocations or anything lower then the - * highest-level allocation. - * - * However, in the interest of performance and the general - * lack of desire to do constant list rebalancing, we don't - * worry about it. - */ - list_for_each_safe(pos, tmp, &sq_mapping_list) { - struct sq_mapping *entry; - - entry = list_entry(pos, typeof(*entry), list); - - return entry->sq_addr + entry->size; + struct sq_mapping **p, *tmp; + + spin_lock_irq(&sq_mapping_lock); + + for (p = &sq_mapping_list; (tmp = *p); p = &tmp->next) + if (tmp == map) { + *p = tmp->next; + break; } - } - return P4SEG_STORE_QUE; + spin_unlock_irq(&sq_mapping_lock); } -/** - * __sq_remap - Perform a translation from the SQ to a phys addr - * @map: sq mapping containing phys and store queue addresses. - * - * Maps the store queue address specified in the mapping to the physical - * address specified in the mapping. - */ -static struct sq_mapping *__sq_remap(struct sq_mapping *map) +static int __sq_remap(struct sq_mapping *map, unsigned long flags) { - unsigned long flags, pteh, ptel; +#if defined(CONFIG_MMU) struct vm_struct *vma; - pgprot_t pgprot; - /* - * Without an MMU (or with it turned off), this is much more - * straightforward, as we can just load up each queue's QACR with - * the physical address appropriately masked. - */ - - ctrl_outl(((map->addr >> 26) << 2) & 0x1c, SQ_QACR0); - ctrl_outl(((map->addr >> 26) << 2) & 0x1c, SQ_QACR1); - -#ifdef CONFIG_MMU - /* - * With an MMU on the other hand, things are slightly more involved. - * Namely, we have to have a direct mapping between the SQ addr and - * the associated physical address in the UTLB by way of setting up - * a virt<->phys translation by hand. We do this by simply specifying - * the SQ addr in UTLB.VPN and the associated physical address in - * UTLB.PPN. - * - * Notably, even though this is a special case translation, and some - * of the configuration bits are meaningless, we're still required - * to have a valid ASID context in PTEH. - * - * We could also probably get by without explicitly setting PTEA, but - * we do it here just for good measure. - */ - spin_lock_irqsave(&sq_mapping_lock, flags); - - pteh = map->sq_addr; - ctrl_outl((pteh & MMU_VPN_MASK) | get_asid(), MMU_PTEH); - - ptel = map->addr & PAGE_MASK; - - if (cpu_data->flags & CPU_HAS_PTEA) - ctrl_outl(((ptel >> 28) & 0xe) | (ptel & 0x1), MMU_PTEA); - - pgprot = pgprot_noncached(PAGE_KERNEL); - - ptel &= _PAGE_FLAGS_HARDWARE_MASK; - ptel |= pgprot_val(pgprot); - ctrl_outl(ptel, MMU_PTEL); - - __asm__ __volatile__ ("ldtlb" : : : "memory"); - - spin_unlock_irqrestore(&sq_mapping_lock, flags); - - /* - * Next, we need to map ourselves in the kernel page table, so that - * future accesses after a TLB flush will be handled when we take a - * page fault. - * - * Theoretically we could just do this directly and not worry about - * setting up the translation by hand ahead of time, but for the - * cases where we want a one-shot SQ mapping followed by a quick - * writeout before we hit the TLB flush, we do it anyways. This way - * we at least save ourselves the initial page fault overhead. - */ vma = __get_vm_area(map->size, VM_ALLOC, map->sq_addr, SQ_ADDRMAX); if (!vma) - return ERR_PTR(-ENOMEM); + return -ENOMEM; vma->phys_addr = map->addr; if (remap_area_pages((unsigned long)vma->addr, vma->phys_addr, - map->size, pgprot_val(pgprot))) { + map->size, flags)) { vunmap(vma->addr); - return NULL; + return -EAGAIN; } -#endif /* CONFIG_MMU */ +#else + /* + * Without an MMU (or with it turned off), this is much more + * straightforward, as we can just load up each queue's QACR with + * the physical address appropriately masked. + */ + ctrl_outl(((map->addr >> 26) << 2) & 0x1c, SQ_QACR0); + ctrl_outl(((map->addr >> 26) << 2) & 0x1c, SQ_QACR1); +#endif - return map; + return 0; } /** @@ -212,42 +133,65 @@ static struct sq_mapping *__sq_remap(struct sq_mapping *map) * @phys: Physical address of mapping. * @size: Length of mapping. * @name: User invoking mapping. + * @flags: Protection flags. * * Remaps the physical address @phys through the next available store queue * address of @size length. @name is logged at boot time as well as through - * the procfs interface. - * - * A pre-allocated and filled sq_mapping pointer is returned, and must be - * cleaned up with a call to sq_unmap() when the user is done with the - * mapping. + * the sysfs interface. */ -struct sq_mapping *sq_remap(unsigned long phys, unsigned int size, const char *name) +unsigned long sq_remap(unsigned long phys, unsigned int size, + const char *name, unsigned long flags) { struct sq_mapping *map; - unsigned long virt, end; + unsigned long end; unsigned int psz; + int ret, page; /* Don't allow wraparound or zero size */ end = phys + size - 1; - if (!size || end < phys) - return NULL; + if (unlikely(!size || end < phys)) + return -EINVAL; /* Don't allow anyone to remap normal memory.. */ - if (phys < virt_to_phys(high_memory)) - return NULL; + if (unlikely(phys < virt_to_phys(high_memory))) + return -EINVAL; phys &= PAGE_MASK; + size = PAGE_ALIGN(end + 1) - phys; + + map = kmem_cache_alloc(sq_cache, GFP_KERNEL); + if (unlikely(!map)) + return -ENOMEM; + + map->addr = phys; + map->size = size; + map->name = name; + + page = bitmap_find_free_region(sq_bitmap, 0x04000000, + get_order(map->size)); + if (unlikely(page < 0)) { + ret = -ENOSPC; + goto out; + } + + map->sq_addr = P4SEG_STORE_QUE + (page << PAGE_SHIFT); + + ret = __sq_remap(map, flags); + if (unlikely(ret != 0)) + goto out; + + psz = (size + (PAGE_SIZE - 1)) >> PAGE_SHIFT; + pr_info("sqremap: %15s [%4d page%s] va 0x%08lx pa 0x%08lx\n", + likely(map->name) ? map->name : "???", + psz, psz == 1 ? " " : "s", + map->sq_addr, map->addr); - size = PAGE_ALIGN(end + 1) - phys; - virt = __sq_get_next_addr(); - psz = (size + (PAGE_SIZE - 1)) / PAGE_SIZE; - map = __sq_alloc_mapping(virt, phys, size, name); + sq_mapping_list_add(map); - printk("sqremap: %15s [%4d page%s] va 0x%08lx pa 0x%08lx\n", - map->name ? map->name : "???", - psz, psz == 1 ? " " : "s", - map->sq_addr, map->addr); + return map->sq_addr; - return __sq_remap(map); +out: + kmem_cache_free(sq_cache, map); + return ret; } /** @@ -258,188 +202,198 @@ struct sq_mapping *sq_remap(unsigned long phys, unsigned int size, const char *n * sq_remap(). Also frees up the pte that was previously inserted into * the kernel page table and discards the UTLB translation. */ -void sq_unmap(struct sq_mapping *map) +void sq_unmap(unsigned long vaddr) { - if (map->sq_addr > (unsigned long)high_memory) - vfree((void *)(map->sq_addr & PAGE_MASK)); + struct sq_mapping **p, *map; + struct vm_struct *vma; + int page; - list_del(&map->list); - kfree(map); -} + for (p = &sq_mapping_list; (map = *p); p = &map->next) + if (map->sq_addr == vaddr) + break; -/** - * sq_clear - Clear a store queue range - * @addr: Address to start clearing from. - * @len: Length to clear. - * - * A quick zero-fill implementation for clearing out memory that has been - * remapped through the store queues. - */ -void sq_clear(unsigned long addr, unsigned int len) -{ - int i; + if (unlikely(!map)) { + printk("%s: bad store queue address 0x%08lx\n", + __FUNCTION__, vaddr); + return; + } - /* Clear out both queues linearly */ - for (i = 0; i < 8; i++) { - ctrl_outl(0, addr + i + 0); - ctrl_outl(0, addr + i + 8); + page = (map->sq_addr - P4SEG_STORE_QUE) >> PAGE_SHIFT; + bitmap_release_region(sq_bitmap, page, get_order(map->size)); + +#ifdef CONFIG_MMU + vma = remove_vm_area((void *)(map->sq_addr & PAGE_MASK)); + if (!vma) { + printk(KERN_ERR "%s: bad address 0x%08lx\n", + __FUNCTION__, map->sq_addr); + return; } +#endif + + sq_mapping_list_del(map); - sq_flush_range(addr, len); + kmem_cache_free(sq_cache, map); } -/** - * sq_vma_unmap - Unmap a VMA range - * @area: VMA containing range. - * @addr: Start of range. - * @len: Length of range. +/* + * Needlessly complex sysfs interface. Unfortunately it doesn't seem like + * there is any other easy way to add things on a per-cpu basis without + * putting the directory entries somewhere stupid and having to create + * links in sysfs by hand back in to the per-cpu directories. * - * Searches the sq_mapping_list for a mapping matching the sq addr @addr, - * and subsequently frees up the entry. Further cleanup is done by generic - * code. + * Some day we may want to have an additional abstraction per store + * queue, but considering the kobject hell we already have to deal with, + * it's simply not worth the trouble. */ -static void sq_vma_unmap(struct vm_area_struct *area, - unsigned long addr, size_t len) -{ - struct list_head *pos, *tmp; +static struct kobject *sq_kobject[NR_CPUS]; - list_for_each_safe(pos, tmp, &sq_mapping_list) { - struct sq_mapping *entry; +struct sq_sysfs_attr { + struct attribute attr; + ssize_t (*show)(char *buf); + ssize_t (*store)(const char *buf, size_t count); +}; - entry = list_entry(pos, typeof(*entry), list); +#define to_sq_sysfs_attr(attr) container_of(attr, struct sq_sysfs_attr, attr) - if (entry->sq_addr == addr) { - /* - * We could probably get away without doing the tlb flush - * here, as generic code should take care of most of this - * when unmapping the rest of the VMA range for us. Leave - * it in for added sanity for the time being.. - */ - __flush_tlb_page(get_asid(), entry->sq_addr & PAGE_MASK); +static ssize_t sq_sysfs_show(struct kobject *kobj, struct attribute *attr, + char *buf) +{ + struct sq_sysfs_attr *sattr = to_sq_sysfs_attr(attr); - list_del(&entry->list); - kfree(entry); + if (likely(sattr->show)) + return sattr->show(buf); - return; - } - } + return -EIO; } -/** - * sq_vma_sync - Sync a VMA range - * @area: VMA containing range. - * @start: Start of range. - * @len: Length of range. - * @flags: Additional flags. - * - * Synchronizes an sq mapped range by flushing the store queue cache for - * the duration of the mapping. - * - * Used internally for user mappings, which must use msync() to prefetch - * the store queue cache. - */ -static int sq_vma_sync(struct vm_area_struct *area, - unsigned long start, size_t len, unsigned int flags) +static ssize_t sq_sysfs_store(struct kobject *kobj, struct attribute *attr, + const char *buf, size_t count) { - sq_flush_range(start, len); + struct sq_sysfs_attr *sattr = to_sq_sysfs_attr(attr); - return 0; + if (likely(sattr->store)) + return sattr->store(buf, count); + + return -EIO; } -static struct vm_operations_struct sq_vma_ops = { - .unmap = sq_vma_unmap, - .sync = sq_vma_sync, -}; +static ssize_t mapping_show(char *buf) +{ + struct sq_mapping **list, *entry; + char *p = buf; -/** - * sq_mmap - mmap() for /dev/cpu/sq - * @file: unused. - * @vma: VMA to remap. - * - * Remap the specified vma @vma through the store queues, and setup associated - * information for the new mapping. Also build up the page tables for the new - * area. - */ -static int sq_mmap(struct file *file, struct vm_area_struct *vma) + for (list = &sq_mapping_list; (entry = *list); list = &entry->next) + p += sprintf(p, "%08lx-%08lx [%08lx]: %s\n", + entry->sq_addr, entry->sq_addr + entry->size, + entry->addr, entry->name); + + return p - buf; +} + +static ssize_t mapping_store(const char *buf, size_t count) { - unsigned long offset = vma->vm_pgoff << PAGE_SHIFT; - unsigned long size = vma->vm_end - vma->vm_start; - struct sq_mapping *map; + unsigned long base = 0, len = 0; - /* - * We're not interested in any arbitrary virtual address that has - * been stuck in the VMA, as we already know what addresses we - * want. Save off the size, and reposition the VMA to begin at - * the next available sq address. - */ - vma->vm_start = __sq_get_next_addr(); - vma->vm_end = vma->vm_start + size; + sscanf(buf, "%lx %lx", &base, &len); + if (!base) + return -EIO; - vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); + if (likely(len)) { + int ret = sq_remap(base, len, "Userspace", + pgprot_val(PAGE_SHARED)); + if (ret < 0) + return ret; + } else + sq_unmap(base); - vma->vm_flags |= VM_IO | VM_RESERVED; + return count; +} - map = __sq_alloc_mapping(vma->vm_start, offset, size, "Userspace"); +static struct sq_sysfs_attr mapping_attr = + __ATTR(mapping, 0644, mapping_show, mapping_store); - if (io_remap_pfn_range(vma, map->sq_addr, map->addr >> PAGE_SHIFT, - size, vma->vm_page_prot)) - return -EAGAIN; +static struct attribute *sq_sysfs_attrs[] = { + &mapping_attr.attr, + NULL, +}; - vma->vm_ops = &sq_vma_ops; +static struct sysfs_ops sq_sysfs_ops = { + .show = sq_sysfs_show, + .store = sq_sysfs_store, +}; - return 0; -} +static struct kobj_type ktype_percpu_entry = { + .sysfs_ops = &sq_sysfs_ops, + .default_attrs = sq_sysfs_attrs, +}; -#ifdef CONFIG_PROC_FS -static int sq_mapping_read_proc(char *buf, char **start, off_t off, - int len, int *eof, void *data) +static int __devinit sq_sysdev_add(struct sys_device *sysdev) { - struct list_head *pos; - char *p = buf; + unsigned int cpu = sysdev->id; + struct kobject *kobj; - list_for_each_prev(pos, &sq_mapping_list) { - struct sq_mapping *entry; + sq_kobject[cpu] = kzalloc(sizeof(struct kobject), GFP_KERNEL); + if (unlikely(!sq_kobject[cpu])) + return -ENOMEM; - entry = list_entry(pos, typeof(*entry), list); + kobj = sq_kobject[cpu]; + kobj->parent = &sysdev->kobj; + kobject_set_name(kobj, "%s", "sq"); + kobj->ktype = &ktype_percpu_entry; - p += sprintf(p, "%08lx-%08lx [%08lx]: %s\n", entry->sq_addr, - entry->sq_addr + entry->size - 1, entry->addr, - entry->name); - } - - return p - buf; + return kobject_register(kobj); } -#endif -static struct file_operations sq_fops = { - .owner = THIS_MODULE, - .mmap = sq_mmap, -}; +static int __devexit sq_sysdev_remove(struct sys_device *sysdev) +{ + unsigned int cpu = sysdev->id; + struct kobject *kobj = sq_kobject[cpu]; -static struct miscdevice sq_dev = { - .minor = STORE_QUEUE_MINOR, - .name = "sq", - .fops = &sq_fops, + kobject_unregister(kobj); + return 0; +} + +static struct sysdev_driver sq_sysdev_driver = { + .add = sq_sysdev_add, + .remove = __devexit_p(sq_sysdev_remove), }; static int __init sq_api_init(void) { - int ret; + unsigned int nr_pages = 0x04000000 >> PAGE_SHIFT; + unsigned int size = (nr_pages + (BITS_PER_LONG - 1)) / BITS_PER_LONG; + int ret = -ENOMEM; + printk(KERN_NOTICE "sq: Registering store queue API.\n"); - create_proc_read_entry("sq_mapping", 0, 0, sq_mapping_read_proc, 0); + sq_cache = kmem_cache_create("store_queue_cache", + sizeof(struct sq_mapping), 0, 0, + NULL, NULL); + if (unlikely(!sq_cache)) + return ret; - ret = misc_register(&sq_dev); - if (ret) - remove_proc_entry("sq_mapping", NULL); + sq_bitmap = kzalloc(size, GFP_KERNEL); + if (unlikely(!sq_bitmap)) + goto out; + + ret = sysdev_driver_register(&cpu_sysdev_class, &sq_sysdev_driver); + if (unlikely(ret != 0)) + goto out; + + return 0; + +out: + kfree(sq_bitmap); + kmem_cache_destroy(sq_cache); return ret; } static void __exit sq_api_exit(void) { - misc_deregister(&sq_dev); - remove_proc_entry("sq_mapping", NULL); + sysdev_driver_unregister(&cpu_sysdev_class, &sq_sysdev_driver); + kfree(sq_bitmap); + kmem_cache_destroy(sq_cache); } module_init(sq_api_init); @@ -448,11 +402,7 @@ module_exit(sq_api_exit); MODULE_AUTHOR("Paul Mundt , M. R. Brown "); MODULE_DESCRIPTION("Simple API for SH-4 integrated Store Queues"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(STORE_QUEUE_MINOR); EXPORT_SYMBOL(sq_remap); EXPORT_SYMBOL(sq_unmap); -EXPORT_SYMBOL(sq_clear); -EXPORT_SYMBOL(sq_flush); EXPORT_SYMBOL(sq_flush_range); - diff --git a/include/asm-sh/cpu-sh4/sq.h b/include/asm-sh/cpu-sh4/sq.h index 366b09166d3b..586d6491816a 100644 --- a/include/asm-sh/cpu-sh4/sq.h +++ b/include/asm-sh/cpu-sh4/sq.h @@ -17,7 +17,7 @@ * Store queues range from e0000000-e3fffffc, allowing approx. 64MB to be * mapped to any physical address space. Since data is written (and aligned) * to 32-byte boundaries, we need to be sure that all allocations are aligned. - */ + */ #define SQ_SIZE 32 #define SQ_ALIGN_MASK (~(SQ_SIZE - 1)) #define SQ_ALIGN(addr) (((addr)+SQ_SIZE-1) & SQ_ALIGN_MASK) @@ -26,23 +26,10 @@ #define SQ_QACR1 (P4SEG_REG_BASE + 0x3c) #define SQ_ADDRMAX (P4SEG_STORE_QUE + 0x04000000) -struct sq_mapping { - const char *name; - - unsigned long sq_addr; - unsigned long addr; - unsigned int size; - - struct list_head list; -}; - /* arch/sh/kernel/cpu/sh4/sq.c */ -extern struct sq_mapping *sq_remap(unsigned long phys, unsigned int size, const char *name); -extern void sq_unmap(struct sq_mapping *map); - -extern void sq_clear(unsigned long addr, unsigned int len); -extern void sq_flush(void *addr); -extern void sq_flush_range(unsigned long start, unsigned int len); +unsigned long sq_remap(unsigned long phys, unsigned int size, + const char *name, unsigned long flags); +void sq_unmap(unsigned long vaddr); +void sq_flush_range(unsigned long start, unsigned int len); #endif /* __ASM_CPU_SH4_SQ_H */ - -- cgit v1.2.3 From 5283ecb5ccbdb90d49fce6488d3944bba63a591c Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Wed, 27 Sep 2006 15:59:17 +0900 Subject: sh: Add support for R7780RP and R7780MP boards. This adds support for the Renesas SH7780 development boards, R7780RP and R7780MP. Signed-off-by: Paul Mundt --- arch/sh/Kconfig | 2 + arch/sh/Makefile | 1 + arch/sh/boards/renesas/r7780rp/Kconfig | 14 + arch/sh/boards/renesas/r7780rp/Makefile | 6 + arch/sh/boards/renesas/r7780rp/io.c | 338 +++++++++ arch/sh/boards/renesas/r7780rp/irq.c | 123 ++++ arch/sh/boards/renesas/r7780rp/led.c | 45 ++ arch/sh/boards/renesas/r7780rp/setup.c | 164 +++++ arch/sh/configs/r7780rp_defconfig | 1099 ++++++++++++++++++++++++++++++ arch/sh/drivers/dma/Kconfig | 3 +- arch/sh/drivers/dma/dma-sh.c | 4 - arch/sh/drivers/pci/Makefile | 2 + arch/sh/drivers/pci/fixups-r7780rp.c | 39 ++ arch/sh/drivers/pci/ops-r7780rp.c | 77 +++ arch/sh/drivers/pci/pci-auto.c | 44 +- arch/sh/drivers/pci/pci-sh7751.c | 4 +- arch/sh/drivers/pci/pci-sh7780.c | 341 +++++++++ arch/sh/drivers/pci/pci-sh7780.h | 168 +++++ arch/sh/kernel/cpu/irq/intc2.c | 6 +- arch/sh/tools/mach-types | 2 + include/asm-sh/cpu-sh4/addrspace.h | 3 + include/asm-sh/cpu-sh4/dma-sh7780.h | 39 ++ include/asm-sh/cpu-sh4/dma.h | 11 +- include/asm-sh/hs7751rvoip/hs7751rvoip.h | 2 - include/asm-sh/irq-sh7780.h | 5 - include/asm-sh/irq.h | 2 +- include/asm-sh/landisk/iodata_landisk.h | 2 - include/asm-sh/r7780rp/ide.h | 8 + include/asm-sh/r7780rp/r7780rp.h | 177 +++++ include/asm-sh/rts7751r2d/rts7751r2d.h | 2 - 30 files changed, 2684 insertions(+), 49 deletions(-) create mode 100644 arch/sh/boards/renesas/r7780rp/Kconfig create mode 100644 arch/sh/boards/renesas/r7780rp/Makefile create mode 100644 arch/sh/boards/renesas/r7780rp/io.c create mode 100644 arch/sh/boards/renesas/r7780rp/irq.c create mode 100644 arch/sh/boards/renesas/r7780rp/led.c create mode 100644 arch/sh/boards/renesas/r7780rp/setup.c create mode 100644 arch/sh/configs/r7780rp_defconfig create mode 100644 arch/sh/drivers/pci/fixups-r7780rp.c create mode 100644 arch/sh/drivers/pci/ops-r7780rp.c create mode 100644 arch/sh/drivers/pci/pci-sh7780.c create mode 100644 arch/sh/drivers/pci/pci-sh7780.h create mode 100644 include/asm-sh/cpu-sh4/dma-sh7780.h create mode 100644 include/asm-sh/r7780rp/ide.h create mode 100644 include/asm-sh/r7780rp/r7780rp.h (limited to 'include') diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig index a66b9c44075f..fe982f0eba23 100644 --- a/arch/sh/Kconfig +++ b/arch/sh/Kconfig @@ -404,6 +404,8 @@ source "arch/sh/boards/renesas/hs7751rvoip/Kconfig" source "arch/sh/boards/renesas/rts7751r2d/Kconfig" +source "arch/sh/boards/renesas/r7780rp/Kconfig" + config SH_PCLK_FREQ int "Peripheral clock frequency (in Hz)" default "50000000" if CPU_SUBTYPE_SH7750 || CPU_SUBTYPE_SH7780 diff --git a/arch/sh/Makefile b/arch/sh/Makefile index 65676c33822e..c143510d71fc 100644 --- a/arch/sh/Makefile +++ b/arch/sh/Makefile @@ -104,6 +104,7 @@ machdir-$(CONFIG_SH_HS7751RVOIP) := renesas/hs7751rvoip machdir-$(CONFIG_SH_RTS7751R2D) := renesas/rts7751r2d machdir-$(CONFIG_SH_7751_SYSTEMH) := renesas/systemh machdir-$(CONFIG_SH_EDOSK7705) := renesas/edosk7705 +machdir-$(CONFIG_SH_R7780RP) := renesas/r7780rp machdir-$(CONFIG_SH_SH4202_MICRODEV) := superh/microdev machdir-$(CONFIG_SH_LANDISK) := landisk machdir-$(CONFIG_SH_TITAN) := titan diff --git a/arch/sh/boards/renesas/r7780rp/Kconfig b/arch/sh/boards/renesas/r7780rp/Kconfig new file mode 100644 index 000000000000..c26d9813d239 --- /dev/null +++ b/arch/sh/boards/renesas/r7780rp/Kconfig @@ -0,0 +1,14 @@ +if SH_R7780RP + +menu "R7780RP options" + +config SH_R7780MP + bool "R7780MP board support" + default y + help + Selecting this option will enable support for the mass-production + version of the R7780RP. If in doubt, say Y. + +endmenu + +endif diff --git a/arch/sh/boards/renesas/r7780rp/Makefile b/arch/sh/boards/renesas/r7780rp/Makefile new file mode 100644 index 000000000000..f1776d027978 --- /dev/null +++ b/arch/sh/boards/renesas/r7780rp/Makefile @@ -0,0 +1,6 @@ +# +# Makefile for the R7780RP-1 specific parts of the kernel +# + +obj-y := setup.o io.o irq.o +obj-$(CONFIG_HEARTBEAT) += led.o diff --git a/arch/sh/boards/renesas/r7780rp/io.c b/arch/sh/boards/renesas/r7780rp/io.c new file mode 100644 index 000000000000..f73ca3f0f5a1 --- /dev/null +++ b/arch/sh/boards/renesas/r7780rp/io.c @@ -0,0 +1,338 @@ +/* + * linux/arch/sh/kernel/io_r7780rp.c + * + * Copyright (C) 2001 Ian da Silva, Jeremy Siegel + * Based largely on io_se.c. + * + * I/O routine for Renesas Solutions Highlander R7780RP-1 + * + * Initial version only to support LAN access; some + * placeholder code from io_r7780rp.c left in with the + * expectation of later SuperIO and PCMCIA access. + */ + +#include +#include +#include +#include +#include + +#include +#include +#include "../../../drivers/pci/pci-sh7780.h" + +/* + * The 7780 R7780RP-1 uses the built-in PCI controller (PCIC) + * of the 7780 processor, and has a SuperIO accessible via the PCI. + * The board also includes a PCMCIA controller on its memory bus, + * like the other Solution Engine boards. + */ + +#define SH7780_PCIIOBR_MASK 0xFFFC0000 /* IO Space Mask */ +#define PCIIOBR (volatile long *)PCI_REG(SH7780_PCIIOBR) +#define PCIMBR (volatile long *)PCI_REG(SH7780_PCIMBR) +#define PCI_IO_AREA SH7780_PCI_IO_BASE +#define PCI_MEM_AREA SH7780_PCI_CONFIG_BASE + +#define PCI_IOMAP(adr) (PCI_IO_AREA + (adr & ~SH7780_PCIIOBR_MASK)) + +static inline void delay(void) +{ + ctrl_inw(0xa0000000); +} + +static inline unsigned long port2adr(unsigned int port) +{ + if ((0x1f0 <= port && port < 0x1f8) || port == 0x3f6) + if (port == 0x3f6) + return (PA_AREA5_IO + 0x80c); + else + return (PA_AREA5_IO + 0x1000 + ((port-0x1f0) << 1)); + else + maybebadio((unsigned long)port); + + return port; +} + +static inline unsigned long port88796l(unsigned int port, int flag) +{ + unsigned long addr; + + if (flag) + addr = PA_AX88796L + ((port - AX88796L_IO_BASE) << 1); + else + addr = PA_AX88796L + ((port - AX88796L_IO_BASE) << 1) + 0x1000; + + return addr; +} + +/* The 7780 R7780RP-1 seems to have everything hooked */ +/* up pretty normally (nothing on high-bytes only...) so this */ +/* shouldn't be needed */ +static inline int shifted_port(unsigned long port) +{ + /* For IDE registers, value is not shifted */ + if ((0x1f0 <= port && port < 0x1f8) || port == 0x3f6) + return 0; + else + return 1; +} + +/* In case someone configures the kernel w/o PCI support: in that */ +/* scenario, don't ever bother to check for PCI-window addresses */ + +/* NOTE: WINDOW CHECK MAY BE A BIT OFF, HIGH PCIBIOS_MIN_IO WRAPS? */ +#if defined(CONFIG_PCI) +#define CHECK_SH7780_PCIIO(port) \ + ((port >= PCIBIOS_MIN_IO) && (port < (PCIBIOS_MIN_IO + SH7780_PCI_IO_SIZE))) +#else +#define CHECK_SH7780_PCIIO(port) (0) +#endif + +#if defined(CONFIG_NE2000) || defined(CONFIG_NE2000_MODULE) +#define CHECK_AX88796L_PORT(port) \ + ((port >= AX88796L_IO_BASE) && (port < (AX88796L_IO_BASE+0x20))) +#else +#define CHECK_AX88796L_PORT(port) (0) +#endif + +/* + * General outline: remap really low stuff [eventually] to SuperIO, + * stuff in PCI IO space (at or above window at pci.h:PCIBIOS_MIN_IO) + * is mapped through the PCI IO window. Stuff with high bits (PXSEG) + * should be way beyond the window, and is used w/o translation for + * compatibility. + */ +u8 r7780rp_inb(unsigned long port) +{ + if (CHECK_AX88796L_PORT(port)) + return ctrl_inw(port88796l(port, 0)) & 0xff; + else if (PXSEG(port)) + return ctrl_inb(port); + else if (CHECK_SH7780_PCIIO(port) || shifted_port(port)) + return ctrl_inb(PCI_IOMAP(port)); + + return ctrl_inw(port2adr(port)) & 0xff; +} + +u8 r7780rp_inb_p(unsigned long port) +{ + u8 v; + + if (CHECK_AX88796L_PORT(port)) + v = ctrl_inw(port88796l(port, 0)) & 0xff; + else if (PXSEG(port)) + v = ctrl_inb(port); + else if (CHECK_SH7780_PCIIO(port) || shifted_port(port)) + v = ctrl_inb(PCI_IOMAP(port)); + else + v = ctrl_inw(port2adr(port)) & 0xff; + + delay(); + + return v; +} + +u16 r7780rp_inw(unsigned long port) +{ + if (CHECK_AX88796L_PORT(port)) + maybebadio(port); + else if (PXSEG(port)) + return ctrl_inw(port); + else if (CHECK_SH7780_PCIIO(port) || shifted_port(port)) + return ctrl_inw(PCI_IOMAP(port)); + else + maybebadio(port); + + return 0; +} + +u32 r7780rp_inl(unsigned long port) +{ + if (CHECK_AX88796L_PORT(port)) + maybebadio(port); + else if (PXSEG(port)) + return ctrl_inl(port); + else if (CHECK_SH7780_PCIIO(port) || shifted_port(port)) + return ctrl_inl(PCI_IOMAP(port)); + else + maybebadio(port); + + return 0; +} + +void r7780rp_outb(u8 value, unsigned long port) +{ + if (CHECK_AX88796L_PORT(port)) + ctrl_outw(value, port88796l(port, 0)); + else if (PXSEG(port)) + ctrl_outb(value, port); + else if (CHECK_SH7780_PCIIO(port) || shifted_port(port)) + ctrl_outb(value, PCI_IOMAP(port)); + else + ctrl_outw(value, port2adr(port)); +} + +void r7780rp_outb_p(u8 value, unsigned long port) +{ + if (CHECK_AX88796L_PORT(port)) + ctrl_outw(value, port88796l(port, 0)); + else if (PXSEG(port)) + ctrl_outb(value, port); + else if (CHECK_SH7780_PCIIO(port) || shifted_port(port)) + ctrl_outb(value, PCI_IOMAP(port)); + else + ctrl_outw(value, port2adr(port)); + + delay(); +} + +void r7780rp_outw(u16 value, unsigned long port) +{ + if (CHECK_AX88796L_PORT(port)) + maybebadio(port); + else if (PXSEG(port)) + ctrl_outw(value, port); + else if (CHECK_SH7780_PCIIO(port) || shifted_port(port)) + ctrl_outw(value, PCI_IOMAP(port)); + else + maybebadio(port); +} + +void r7780rp_outl(u32 value, unsigned long port) +{ + if (CHECK_AX88796L_PORT(port)) + maybebadio(port); + else if (PXSEG(port)) + ctrl_outl(value, port); + else if (CHECK_SH7780_PCIIO(port) || shifted_port(port)) + ctrl_outl(value, PCI_IOMAP(port)); + else + maybebadio(port); +} + +void r7780rp_insb(unsigned long port, void *dst, unsigned long count) +{ + volatile u16 *p; + u8 *buf = dst; + + if (CHECK_AX88796L_PORT(port)) { + p = (volatile u16 *)port88796l(port, 0); + while (count--) + *buf++ = *p & 0xff; + } else if (PXSEG(port)) { + while (count--) + *buf++ = *(volatile u8 *)port; + } else if (CHECK_SH7780_PCIIO(port) || shifted_port(port)) { + volatile u8 *bp = (volatile u8 *)PCI_IOMAP(port); + + while (count--) + *buf++ = *bp; + } else { + p = (volatile u16 *)port2adr(port); + while (count--) + *buf++ = *p & 0xff; + } +} + +void r7780rp_insw(unsigned long port, void *dst, unsigned long count) +{ + volatile u16 *p; + u16 *buf = dst; + + if (CHECK_AX88796L_PORT(port)) + p = (volatile u16 *)port88796l(port, 1); + else if (PXSEG(port)) + p = (volatile u16 *)port; + else if (CHECK_SH7780_PCIIO(port) || shifted_port(port)) + p = (volatile u16 *)PCI_IOMAP(port); + else + p = (volatile u16 *)port2adr(port); + + while (count--) + *buf++ = *p; +} + +void r7780rp_insl(unsigned long port, void *dst, unsigned long count) +{ + u32 *buf = dst; + + if (CHECK_AX88796L_PORT(port)) + maybebadio(port); + else if (CHECK_SH7780_PCIIO(port) || shifted_port(port)) { + volatile u32 *p = (volatile u32 *)PCI_IOMAP(port); + + while (count--) + *buf++ = *p; + } else + maybebadio(port); +} + +void r7780rp_outsb(unsigned long port, const void *src, unsigned long count) +{ + volatile u16 *p; + const u8 *buf = src; + + if (CHECK_AX88796L_PORT(port)) { + p = (volatile u16 *)port88796l(port, 0); + while (count--) + *p = *buf++; + } else if (PXSEG(port)) + while (count--) + ctrl_outb(*buf++, port); + else if (CHECK_SH7780_PCIIO(port) || shifted_port(port)) { + volatile u8 *bp = (volatile u8 *)PCI_IOMAP(port); + + while (count--) + *bp = *buf++; + } else { + p = (volatile u16 *)port2adr(port); + while (count--) + *p = *buf++; + } +} + +void r7780rp_outsw(unsigned long port, const void *src, unsigned long count) +{ + volatile u16 *p; + const u16 *buf = src; + + if (CHECK_AX88796L_PORT(port)) + p = (volatile u16 *)port88796l(port, 1); + else if (PXSEG(port)) + p = (volatile u16 *)port; + else if (CHECK_SH7780_PCIIO(port) || shifted_port(port)) + p = (volatile u16 *)PCI_IOMAP(port); + else + p = (volatile u16 *)port2adr(port); + + while (count--) + *p = *buf++; +} + +void r7780rp_outsl(unsigned long port, const void *src, unsigned long count) +{ + const u32 *buf = src; + + if (CHECK_AX88796L_PORT(port)) + maybebadio(port); + else if (CHECK_SH7780_PCIIO(port) || shifted_port(port)) { + volatile u32 *p = (volatile u32 *)PCI_IOMAP(port); + + while (count--) + *p = *buf++; + } else + maybebadio(port); +} + +void __iomem *r7780rp_ioport_map(unsigned long port, unsigned int size) +{ + if (CHECK_AX88796L_PORT(port)) + return (void __iomem *)port88796l(port, size > 1); + else if (PXSEG(port)) + return (void __iomem *)port; + else if (CHECK_SH7780_PCIIO(port) || shifted_port(port)) + return (void __iomem *)PCI_IOMAP(port); + + return (void __iomem *)port2adr(port); +} diff --git a/arch/sh/boards/renesas/r7780rp/irq.c b/arch/sh/boards/renesas/r7780rp/irq.c new file mode 100644 index 000000000000..c7b9fe6e640d --- /dev/null +++ b/arch/sh/boards/renesas/r7780rp/irq.c @@ -0,0 +1,123 @@ +/* + * linux/arch/sh/boards/renesas/r7780rp/irq.c + * + * Copyright (C) 2000 Kazumoto Kojima + * + * Renesas Solutions Highlander R7780RP-1 Support. + * + * Modified for R7780RP-1 by + * Atom Create Engineering Co., Ltd. 2002. + */ + +#include +#include +#include +#include +#include +#include + +#ifdef CONFIG_SH_R7780MP +static int mask_pos[] = {12, 11, 9, 14, 15, 8, 13, 6, 5, 4, 3, 2, 0, 0, 1, 0}; +#else +static int mask_pos[] = {15, 14, 13, 12, 11, 10, 9, 8, 7, 5, 6, 4, 0, 1, 2, 0}; +#endif + +static void enable_r7780rp_irq(unsigned int irq); +static void disable_r7780rp_irq(unsigned int irq); + +/* shutdown is same as "disable" */ +#define shutdown_r7780rp_irq disable_r7780rp_irq + +static void ack_r7780rp_irq(unsigned int irq); +static void end_r7780rp_irq(unsigned int irq); + +static unsigned int startup_r7780rp_irq(unsigned int irq) +{ + enable_r7780rp_irq(irq); + return 0; /* never anything pending */ +} + +static void disable_r7780rp_irq(unsigned int irq) +{ + unsigned long flags; + unsigned short val; + unsigned short mask = 0xffff ^ (0x0001 << mask_pos[irq]); + + /* Set the priority in IPR to 0 */ + local_irq_save(flags); + val = ctrl_inw(IRLCNTR1); + val &= mask; + ctrl_outw(val, IRLCNTR1); + local_irq_restore(flags); +} + +static void enable_r7780rp_irq(unsigned int irq) +{ + unsigned long flags; + unsigned short val; + unsigned short value = (0x0001 << mask_pos[irq]); + + /* Set priority in IPR back to original value */ + local_irq_save(flags); + val = ctrl_inw(IRLCNTR1); + val |= value; + ctrl_outw(val, IRLCNTR1); + local_irq_restore(flags); +} + +static void ack_r7780rp_irq(unsigned int irq) +{ + disable_r7780rp_irq(irq); +} + +static void end_r7780rp_irq(unsigned int irq) +{ + if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS))) + enable_r7780rp_irq(irq); +} + +static struct hw_interrupt_type r7780rp_irq_type = { + .typename = "R7780RP-IRQ", + .startup = startup_r7780rp_irq, + .shutdown = shutdown_r7780rp_irq, + .enable = enable_r7780rp_irq, + .disable = disable_r7780rp_irq, + .ack = ack_r7780rp_irq, + .end = end_r7780rp_irq, +}; + +static void make_r7780rp_irq(unsigned int irq) +{ + disable_irq_nosync(irq); + irq_desc[irq].handler = &r7780rp_irq_type; + disable_r7780rp_irq(irq); +} + +/* + * Initialize IRQ setting + */ +void __init init_r7780rp_IRQ(void) +{ + int i; + + /* IRL0=PCI Slot #A + * IRL1=PCI Slot #B + * IRL2=PCI Slot #C + * IRL3=PCI Slot #D + * IRL4=CF Card + * IRL5=CF Card Insert + * IRL6=M66596 + * IRL7=SD Card + * IRL8=Touch Panel + * IRL9=SCI + * IRL10=Serial + * IRL11=Extention #A + * IRL11=Extention #B + * IRL12=Debug LAN + * IRL13=Push Switch + * IRL14=ZiggBee IO + */ + + for (i=0; i<15; i++) + make_r7780rp_irq(i); +} diff --git a/arch/sh/boards/renesas/r7780rp/led.c b/arch/sh/boards/renesas/r7780rp/led.c new file mode 100644 index 000000000000..9f02766b6f53 --- /dev/null +++ b/arch/sh/boards/renesas/r7780rp/led.c @@ -0,0 +1,45 @@ +/* + * Copyright (C) Atom Create Engineering Co., Ltd. + * + * May be copied or modified under the terms of GNU General Public + * License. See linux/COPYING for more information. + * + * This file contains Renesas Solutions HIGHLANDER R7780RP-1 specific LED code. + */ + +#include +#include +#include +#include + +/* Cycle the LED's in the clasic Knightriger/Sun pattern */ +void heartbeat_r7780rp(void) +{ + static unsigned int cnt = 0, period = 0; + volatile unsigned short *p = (volatile unsigned short *)PA_OBLED; + static unsigned bit = 0, up = 1; + unsigned bit_pos[] = {2, 1, 0, 3, 6, 5, 4, 7}; + + cnt += 1; + if (cnt < period) + return; + + cnt = 0; + + /* Go through the points (roughly!): + * f(0)=10, f(1)=16, f(2)=20, f(5)=35, f(int)->110 + */ + period = 110 - ((300 << FSHIFT)/((avenrun[0]/5) + (3< +#include +#include +#include +#include +#include + +extern void heartbeat_r7780rp(void); +extern void init_r7780rp_IRQ(void); + +/* + * The Machine Vector + */ +struct sh_machine_vector mv_r7780rp __initmv = { + .mv_nr_irqs = 109, + + .mv_inb = r7780rp_inb, + .mv_inw = r7780rp_inw, + .mv_inl = r7780rp_inl, + .mv_outb = r7780rp_outb, + .mv_outw = r7780rp_outw, + .mv_outl = r7780rp_outl, + + .mv_inb_p = r7780rp_inb_p, + .mv_inw_p = r7780rp_inw, + .mv_inl_p = r7780rp_inl, + .mv_outb_p = r7780rp_outb_p, + .mv_outw_p = r7780rp_outw, + .mv_outl_p = r7780rp_outl, + + .mv_insb = r7780rp_insb, + .mv_insw = r7780rp_insw, + .mv_insl = r7780rp_insl, + .mv_outsb = r7780rp_outsb, + .mv_outsw = r7780rp_outsw, + .mv_outsl = r7780rp_outsl, + + .mv_ioport_map = r7780rp_ioport_map, + .mv_init_irq = init_r7780rp_IRQ, +#ifdef CONFIG_HEARTBEAT + .mv_heartbeat = heartbeat_r7780rp, +#endif +}; +ALIAS_MV(r7780rp) + +static struct resource m66596_usb_host_resources[] = { + [0] = { + .start = 0xa4800000, + .end = 0xa4ffffff, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = 6, /* irq number */ + .end = 6, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device m66596_usb_host_device = { + .name = "m66596-hcd", + .id = 0, + .dev = { + .dma_mask = NULL, /* don't use dma */ + .coherent_dma_mask = 0xffffffff, + }, + .num_resources = ARRAY_SIZE(m66596_usb_host_resources), + .resource = m66596_usb_host_resources, +}; + +static struct platform_device *r7780rp_devices[] __initdata = { + &m66596_usb_host_device, +}; + +static int __init r7780rp_devices_setup(void) +{ + return platform_add_devices(r7780rp_devices, + ARRAY_SIZE(r7780rp_devices)); +} +__initcall(r7780rp_devices_setup); + +/* + * Platform specific clocks + */ +static void ivdr_clk_enable(struct clk *clk) +{ + ctrl_outw(ctrl_inw(PA_IVDRCTL) | (1 << 8), PA_IVDRCTL); +} + +static void ivdr_clk_disable(struct clk *clk) +{ + ctrl_outw(ctrl_inw(PA_IVDRCTL) & ~(1 << 8), PA_IVDRCTL); +} + +static struct clk_ops ivdr_clk_ops = { + .enable = ivdr_clk_enable, + .disable = ivdr_clk_disable, +}; + +static struct clk ivdr_clk = { + .name = "ivdr_clk", + .ops = &ivdr_clk_ops, +}; + +static struct clk *r7780rp_clocks[] = { + &ivdr_clk, +}; + +const char *get_system_type(void) +{ + return "Highlander R7780RP-1"; +} + +static void r7780rp_power_off(void) +{ +#ifdef CONFIG_SH_R7780MP + ctrl_outw(0x0001, PA_POFF); +#endif +} + +/* + * Initialize the board + */ +void __init platform_setup(void) +{ + u16 ver = ctrl_inw(PA_VERREG); + int i; + + printk(KERN_INFO "Renesas Solutions Highlander R7780RP-1 support.\n"); + + printk(KERN_INFO "Board version: %d (revision %d), " + "FPGA version: %d (revision %d)\n", + (ver >> 12) & 0xf, (ver >> 8) & 0xf, + (ver >> 4) & 0xf, ver & 0xf); + + /* + * Enable the important clocks right away.. + */ + for (i = 0; i < ARRAY_SIZE(r7780rp_clocks); i++) { + struct clk *clk = r7780rp_clocks[i]; + + clk_register(clk); + clk_enable(clk); + } + + ctrl_outw(0x0000, PA_OBLED); /* Clear LED. */ +#ifndef CONFIG_SH_R7780MP + ctrl_outw(0x0001, PA_SDPOW); /* SD Power ON */ +#endif + ctrl_outw(ctrl_inw(PA_IVDRCTL) | 0x0100, PA_IVDRCTL); /* Si13112 */ + + pm_power_off = r7780rp_power_off; +} diff --git a/arch/sh/configs/r7780rp_defconfig b/arch/sh/configs/r7780rp_defconfig new file mode 100644 index 000000000000..d597fc571549 --- /dev/null +++ b/arch/sh/configs/r7780rp_defconfig @@ -0,0 +1,1099 @@ +# +# Automatically generated make config: don't edit +# Linux kernel version: 2.6.15-sh +# Sat Jan 7 19:47:53 2006 +# +CONFIG_SUPERH=y +CONFIG_UID16=y +CONFIG_RWSEM_GENERIC_SPINLOCK=y +CONFIG_GENERIC_HARDIRQS=y +CONFIG_GENERIC_IRQ_PROBE=y +CONFIG_GENERIC_CALIBRATE_DELAY=y + +# +# Code maturity level options +# +CONFIG_EXPERIMENTAL=y +CONFIG_CLEAN_COMPILE=y +CONFIG_BROKEN_ON_SMP=y +CONFIG_LOCK_KERNEL=y +CONFIG_INIT_ENV_ARG_LIMIT=32 + +# +# General setup +# +CONFIG_LOCALVERSION="" +CONFIG_LOCALVERSION_AUTO=y +CONFIG_SWAP=y +CONFIG_SYSVIPC=y +# CONFIG_POSIX_MQUEUE is not set +CONFIG_BSD_PROCESS_ACCT=y +# CONFIG_BSD_PROCESS_ACCT_V3 is not set +CONFIG_SYSCTL=y +# CONFIG_AUDIT is not set +CONFIG_HOTPLUG=y +CONFIG_KOBJECT_UEVENT=y +CONFIG_IKCONFIG=y +CONFIG_IKCONFIG_PROC=y +CONFIG_INITRAMFS_SOURCE="" +CONFIG_CC_OPTIMIZE_FOR_SIZE=y +CONFIG_EMBEDDED=y +CONFIG_KALLSYMS=y +# CONFIG_KALLSYMS_ALL is not set +# CONFIG_KALLSYMS_EXTRA_PASS is not set +CONFIG_PRINTK=y +CONFIG_BUG=y +CONFIG_BASE_FULL=y +# CONFIG_FUTEX is not set +# CONFIG_EPOLL is not set +CONFIG_SHMEM=y +CONFIG_CC_ALIGN_FUNCTIONS=0 +CONFIG_CC_ALIGN_LABELS=0 +CONFIG_CC_ALIGN_LOOPS=0 +CONFIG_CC_ALIGN_JUMPS=0 +# CONFIG_TINY_SHMEM is not set +CONFIG_BASE_SMALL=0 + +# +# Loadable module support +# +CONFIG_MODULES=y +CONFIG_MODULE_UNLOAD=y +# CONFIG_MODULE_FORCE_UNLOAD is not set +CONFIG_OBSOLETE_MODPARM=y +# CONFIG_MODVERSIONS is not set +# CONFIG_MODULE_SRCVERSION_ALL is not set +CONFIG_KMOD=y + +# +# Block layer +# +# CONFIG_LBD 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_DEFAULT_AS is not set +# CONFIG_DEFAULT_DEADLINE is not set +# CONFIG_DEFAULT_CFQ is not set +CONFIG_DEFAULT_NOOP=y +CONFIG_DEFAULT_IOSCHED="noop" + +# +# System type +# +# CONFIG_SH_SOLUTION_ENGINE is not set +# CONFIG_SH_7751_SOLUTION_ENGINE is not set +# CONFIG_SH_7300_SOLUTION_ENGINE is not set +# CONFIG_SH_73180_SOLUTION_ENGINE is not set +# CONFIG_SH_7751_SYSTEMH is not set +# CONFIG_SH_STB1_HARP is not set +# CONFIG_SH_STB1_OVERDRIVE is not set +# CONFIG_SH_HP6XX is not set +# CONFIG_SH_CQREEK is not set +# CONFIG_SH_DMIDA is not set +# CONFIG_SH_EC3104 is not set +# CONFIG_SH_SATURN is not set +# CONFIG_SH_DREAMCAST is not set +# CONFIG_SH_CAT68701 is not set +# CONFIG_SH_BIGSUR is not set +# CONFIG_SH_SH2000 is not set +# CONFIG_SH_ADX is not set +# CONFIG_SH_MPC1211 is not set +# CONFIG_SH_SH03 is not set +# CONFIG_SH_SECUREEDGE5410 is not set +# CONFIG_SH_HS7751RVOIP is not set +# CONFIG_SH_RTS7751R2D is not set +# CONFIG_SH_R77703DRP is not set +CONFIG_SH_R7780RP=y +# CONFIG_SH_EDOSK7705 is not set +# CONFIG_SH_SH4202_MICRODEV is not set +# CONFIG_SH_LANDISK is not set +# CONFIG_SH_TITAN is not set +# CONFIG_SH_UNKNOWN is not set + +# +# Processor selection +# +CONFIG_CPU_SH4=y +CONFIG_CPU_SH4A=y + +# +# SH-2 Processor Support +# +# CONFIG_CPU_SUBTYPE_SH7604 is not set + +# +# SH-3 Processor Support +# +# CONFIG_CPU_SUBTYPE_SH7300 is not set +# CONFIG_CPU_SUBTYPE_SH7705 is not set +# CONFIG_CPU_SUBTYPE_SH7707 is not set +# CONFIG_CPU_SUBTYPE_SH7708 is not set +# CONFIG_CPU_SUBTYPE_SH7709 is not set + +# +# SH-4 Processor Support +# +# CONFIG_CPU_SUBTYPE_SH7750 is not set +# CONFIG_CPU_SUBTYPE_SH7091 is not set +# CONFIG_CPU_SUBTYPE_SH7750R is not set +# CONFIG_CPU_SUBTYPE_SH7750S is not set +# CONFIG_CPU_SUBTYPE_SH7751 is not set +# CONFIG_CPU_SUBTYPE_SH7751R is not set +# CONFIG_CPU_SUBTYPE_SH7760 is not set +# CONFIG_CPU_SUBTYPE_SH4_202 is not set + +# +# ST40 Processor Support +# +# CONFIG_CPU_SUBTYPE_ST40STB1 is not set +# CONFIG_CPU_SUBTYPE_ST40GX1 is not set + +# +# SH-4A Processor Support +# +# CONFIG_CPU_SUBTYPE_SH73180 is not set +# CONFIG_CPU_SUBTYPE_SH7770 is not set +CONFIG_CPU_SUBTYPE_SH7780=y + +# +# Memory management options +# +CONFIG_MMU=y +CONFIG_32BIT=y +CONFIG_HUGETLB_PAGE_SIZE_64K=y +# CONFIG_HUGETLB_PAGE_SIZE_1MB is not set +CONFIG_SELECT_MEMORY_MODEL=y +CONFIG_FLATMEM_MANUAL=y +# CONFIG_DISCONTIGMEM_MANUAL is not set +# CONFIG_SPARSEMEM_MANUAL is not set +CONFIG_FLATMEM=y +CONFIG_FLAT_NODE_MEM_MAP=y +# CONFIG_SPARSEMEM_STATIC is not set +CONFIG_SPLIT_PTLOCK_CPUS=4 + +# +# Cache configuration +# +# CONFIG_SH_DIRECT_MAPPED is not set +# CONFIG_SH_WRITETHROUGH is not set +# CONFIG_SH_OCRAM is not set +CONFIG_MEMORY_START=0x08000000 +CONFIG_MEMORY_SIZE=0x08000000 + +# +# Processor features +# +CONFIG_CPU_LITTLE_ENDIAN=y +CONFIG_SH_FPU=y +CONFIG_SH_STORE_QUEUES=y + +# +# Timer support +# +CONFIG_SH_TMU=y +CONFIG_SH_PCLK_FREQ_BOOL=y +CONFIG_SH_PCLK_FREQ=32000000 + +# +# CPU Frequency scaling +# +# CONFIG_CPU_FREQ is not set + +# +# DMA support +# +CONFIG_SH_DMA=y +CONFIG_NR_ONCHIP_DMA_CHANNELS=6 +# CONFIG_NR_DMA_CHANNELS_BOOL is not set + +# +# Companion Chips +# +# CONFIG_HD6446X_SERIES is not set + +# +# Kernel features +# +# CONFIG_KEXEC is not set +CONFIG_PREEMPT=y +# CONFIG_SMP is not set +CONFIG_CPU_HAS_INTEVT=y +CONFIG_CPU_HAS_INTC2_IRQ=y + +# +# Boot options +# +CONFIG_ZERO_PAGE_OFFSET=0x00001000 +CONFIG_BOOT_LINK_OFFSET=0x00800000 +# CONFIG_UBC_WAKEUP is not set +CONFIG_CMDLINE_BOOL=y +CONFIG_CMDLINE="mem=128M console=ttySC0,115200 root=/dev/hda1" + +# +# Bus options +# +CONFIG_PCI=y +CONFIG_SH_PCIDMA_NONCOHERENT=y +CONFIG_PCI_AUTO=y +CONFIG_PCI_AUTO_UPDATE_RESOURCES=y +CONFIG_PCI_LEGACY_PROC=y +# CONFIG_PCI_DEBUG is not set + +# +# PCCARD (PCMCIA/CardBus) support +# +# CONFIG_PCCARD is not set + +# +# PCI Hotplug Support +# +CONFIG_HOTPLUG_PCI=y +# CONFIG_HOTPLUG_PCI_FAKE is not set +# CONFIG_HOTPLUG_PCI_CPCI is not set +# CONFIG_HOTPLUG_PCI_SHPC is not set + +# +# Executable file formats +# +CONFIG_BINFMT_ELF=y +# CONFIG_BINFMT_FLAT is not set +# CONFIG_BINFMT_MISC is not set + +# +# Networking +# +CONFIG_NET=y + +# +# Networking options +# +CONFIG_PACKET=y +# CONFIG_PACKET_MMAP is not set +CONFIG_UNIX=y +# CONFIG_NET_KEY is not set +CONFIG_INET=y +# CONFIG_IP_MULTICAST is not set +CONFIG_IP_ADVANCED_ROUTER=y +CONFIG_ASK_IP_FIB_HASH=y +# CONFIG_IP_FIB_TRIE is not set +CONFIG_IP_FIB_HASH=y +# CONFIG_IP_MULTIPLE_TABLES is not set +# CONFIG_IP_ROUTE_MULTIPATH is not set +# CONFIG_IP_ROUTE_VERBOSE is not set +CONFIG_IP_PNP=y +CONFIG_IP_PNP_DHCP=y +# CONFIG_IP_PNP_BOOTP is not set +# CONFIG_IP_PNP_RARP is not set +# CONFIG_NET_IPIP is not set +# CONFIG_NET_IPGRE is not set +# CONFIG_ARPD 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_INET_DIAG=y +CONFIG_INET_TCP_DIAG=y +# CONFIG_TCP_CONG_ADVANCED is not set +CONFIG_TCP_CONG_BIC=y +# CONFIG_IPV6 is not set +# CONFIG_NETFILTER is not set + +# +# DCCP Configuration (EXPERIMENTAL) +# +# CONFIG_IP_DCCP is not set + +# +# SCTP Configuration (EXPERIMENTAL) +# +# CONFIG_IP_SCTP is not set +# CONFIG_ATM is not set +CONFIG_BRIDGE=m +# 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_X25 is not set +# CONFIG_LAPB is not set +# CONFIG_NET_DIVERT is not set +# CONFIG_ECONET is not set +# CONFIG_WAN_ROUTER is not set + +# +# QoS and/or fair queueing +# +# CONFIG_NET_SCHED 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 +# CONFIG_IEEE80211 is not set + +# +# Device Drivers +# + +# +# Generic Driver Options +# +CONFIG_STANDALONE=y +CONFIG_PREVENT_FIRMWARE_BUILD=y +CONFIG_FW_LOADER=m +# CONFIG_DEBUG_DRIVER is not set + +# +# Connector - unified userspace <-> kernelspace linker +# +# CONFIG_CONNECTOR is not set + +# +# Memory Technology Devices (MTD) +# +# CONFIG_MTD is not set + +# +# Parallel port support +# +# CONFIG_PARPORT is not set + +# +# Plug and Play support +# + +# +# Block devices +# +# 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_UMEM 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=y +CONFIG_BLK_DEV_RAM_COUNT=16 +CONFIG_BLK_DEV_RAM_SIZE=4096 +# CONFIG_BLK_DEV_INITRD is not set +# CONFIG_CDROM_PKTCDVD is not set +# CONFIG_ATA_OVER_ETH is not set + +# +# ATA/ATAPI/MFM/RLL support +# +CONFIG_IDE=m +CONFIG_IDE_MAX_HWIFS=4 +CONFIG_BLK_DEV_IDE=m + +# +# Please see Documentation/ide.txt for help/info on IDE drives +# +CONFIG_BLK_DEV_IDE_SATA=y +CONFIG_BLK_DEV_IDEDISK=m +CONFIG_IDEDISK_MULTI_MODE=y +# CONFIG_BLK_DEV_IDECD is not set +# CONFIG_BLK_DEV_IDETAPE is not set +# CONFIG_BLK_DEV_IDEFLOPPY is not set +CONFIG_BLK_DEV_IDESCSI=m +# CONFIG_IDE_TASK_IOCTL is not set + +# +# IDE chipset support/bugfixes +# +CONFIG_IDE_GENERIC=m +CONFIG_BLK_DEV_IDEPCI=y +CONFIG_IDEPCI_SHARE_IRQ=y +# CONFIG_BLK_DEV_OFFBOARD is not set +CONFIG_BLK_DEV_GENERIC=m +# CONFIG_BLK_DEV_OPTI621 is not set +CONFIG_BLK_DEV_IDEDMA_PCI=y +# CONFIG_BLK_DEV_IDEDMA_FORCED is not set +CONFIG_IDEDMA_PCI_AUTO=y +# CONFIG_IDEDMA_ONLYDISK is not set +CONFIG_BLK_DEV_AEC62XX=m +# CONFIG_BLK_DEV_ALI15X3 is not set +# CONFIG_BLK_DEV_AMD74XX is not set +# CONFIG_BLK_DEV_CMD64X is not set +# CONFIG_BLK_DEV_TRIFLEX is not set +# CONFIG_BLK_DEV_CY82C693 is not set +# CONFIG_BLK_DEV_CS5520 is not set +# CONFIG_BLK_DEV_CS5530 is not set +# CONFIG_BLK_DEV_HPT34X is not set +# CONFIG_BLK_DEV_HPT366 is not set +# CONFIG_BLK_DEV_SC1200 is not set +# CONFIG_BLK_DEV_PIIX is not set +# CONFIG_BLK_DEV_IT821X is not set +# CONFIG_BLK_DEV_NS87415 is not set +# CONFIG_BLK_DEV_PDC202XX_OLD is not set +CONFIG_BLK_DEV_PDC202XX_NEW=m +# CONFIG_PDC202XX_FORCE is not set +# CONFIG_BLK_DEV_SVWKS is not set +CONFIG_BLK_DEV_SIIMAGE=m +# CONFIG_BLK_DEV_SLC90E66 is not set +# CONFIG_BLK_DEV_TRM290 is not set +# CONFIG_BLK_DEV_VIA82CXXX is not set +CONFIG_IDE_SH=y +# CONFIG_IDE_ARM is not set +CONFIG_BLK_DEV_IDEDMA=y +# CONFIG_IDEDMA_IVB is not set +CONFIG_IDEDMA_AUTO=y +# CONFIG_BLK_DEV_HD is not set + +# +# SCSI device support +# +# CONFIG_RAID_ATTRS is not set +CONFIG_SCSI=m +CONFIG_SCSI_PROC_FS=y + +# +# SCSI support type (disk, tape, CD-ROM) +# +CONFIG_BLK_DEV_SD=m +# CONFIG_CHR_DEV_ST is not set +# CONFIG_CHR_DEV_OSST is not set +# CONFIG_BLK_DEV_SR is not set +CONFIG_CHR_DEV_SG=m +# CONFIG_CHR_DEV_SCH is not set + +# +# Some SCSI devices (e.g. CD jukebox) support multiple LUNs +# +# CONFIG_SCSI_MULTI_LUN is not set +# CONFIG_SCSI_CONSTANTS is not set +# CONFIG_SCSI_LOGGING is not set + +# +# SCSI Transport Attributes +# +# CONFIG_SCSI_SPI_ATTRS is not set +# CONFIG_SCSI_FC_ATTRS is not set +# CONFIG_SCSI_ISCSI_ATTRS is not set +# CONFIG_SCSI_SAS_ATTRS is not set + +# +# SCSI low-level drivers +# +# CONFIG_ISCSI_TCP is not set +# CONFIG_BLK_DEV_3W_XXXX_RAID is not set +# CONFIG_SCSI_3W_9XXX is not set +# CONFIG_SCSI_ACARD is not set +# CONFIG_SCSI_AACRAID is not set +# CONFIG_SCSI_AIC7XXX is not set +# CONFIG_SCSI_AIC7XXX_OLD is not set +# CONFIG_SCSI_AIC79XX is not set +# CONFIG_SCSI_DPT_I2O is not set +# CONFIG_MEGARAID_NEWGEN is not set +# CONFIG_MEGARAID_LEGACY is not set +# CONFIG_MEGARAID_SAS is not set +# CONFIG_SCSI_SATA is not set +# CONFIG_SCSI_DMX3191D is not set +# CONFIG_SCSI_FUTURE_DOMAIN is not set +# CONFIG_SCSI_IPS is not set +# CONFIG_SCSI_INITIO is not set +# CONFIG_SCSI_INIA100 is not set +# CONFIG_SCSI_SYM53C8XX_2 is not set +# CONFIG_SCSI_IPR is not set +# CONFIG_SCSI_QLOGIC_FC is not set +# CONFIG_SCSI_QLOGIC_1280 is not set +CONFIG_SCSI_QLA2XXX=m +# CONFIG_SCSI_QLA21XX is not set +# CONFIG_SCSI_QLA22XX is not set +# CONFIG_SCSI_QLA2300 is not set +# CONFIG_SCSI_QLA2322 is not set +# CONFIG_SCSI_QLA6312 is not set +# CONFIG_SCSI_QLA24XX is not set +# CONFIG_SCSI_LPFC is not set +# CONFIG_SCSI_DC395x is not set +# CONFIG_SCSI_DC390T is not set +# CONFIG_SCSI_NSP32 is not set +# CONFIG_SCSI_DEBUG is not set + +# +# Multi-device support (RAID and LVM) +# +# CONFIG_MD is not set + +# +# Fusion MPT device support +# +# CONFIG_FUSION is not set +# CONFIG_FUSION_SPI is not set +# CONFIG_FUSION_FC is not set +# CONFIG_FUSION_SAS 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 + +# +# PHY device support +# +# CONFIG_PHYLIB is not set + +# +# Ethernet (10 or 100Mbit) +# +CONFIG_NET_ETHERNET=y +CONFIG_MII=y +# CONFIG_STNIC is not set +# CONFIG_HAPPYMEAL is not set +# CONFIG_SUNGEM is not set +# CONFIG_CASSINI is not set +# CONFIG_NET_VENDOR_3COM is not set +# CONFIG_SMC91X is not set + +# +# Tulip family network device support +# +# CONFIG_NET_TULIP is not set +# CONFIG_HP100 is not set +CONFIG_NE2000=y +CONFIG_NET_PCI=y +CONFIG_PCNET32=m +# CONFIG_AMD8111_ETH is not set +# CONFIG_ADAPTEC_STARFIRE is not set +# CONFIG_B44 is not set +# CONFIG_FORCEDETH is not set +# CONFIG_DGRS is not set +# CONFIG_EEPRO100 is not set +# CONFIG_E100 is not set +# CONFIG_FEALNX is not set +# CONFIG_NATSEMI is not set +# CONFIG_NE2K_PCI is not set +CONFIG_8139CP=m +CONFIG_8139TOO=m +# CONFIG_8139TOO_PIO is not set +# CONFIG_8139TOO_TUNE_TWISTER is not set +CONFIG_8139TOO_8129=y +# CONFIG_8139_OLD_RX_RESET 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=m +CONFIG_VIA_RHINE_MMIO=y + +# +# Ethernet (1000 Mbit) +# +# CONFIG_ACENIC is not set +# CONFIG_DL2K is not set +CONFIG_E1000=m +# CONFIG_E1000_NAPI is not set +# CONFIG_NS83820 is not set +# CONFIG_HAMACHI is not set +# CONFIG_YELLOWFIN is not set +CONFIG_R8169=y +# CONFIG_R8169_NAPI is not set +# CONFIG_SIS190 is not set +# CONFIG_SKGE 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_CHELSIO_T1 is not set +# 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=y + +# +# Obsolete Wireless cards support (pre-802.11) +# +# CONFIG_STRIP is not set + +# +# Wireless 802.11b ISA/PCI cards support +# +CONFIG_HERMES=m +# CONFIG_PLX_HERMES is not set +# CONFIG_TMD_HERMES is not set +# CONFIG_NORTEL_HERMES is not set +# CONFIG_PCI_HERMES is not set +# CONFIG_ATMEL is not set + +# +# Prism GT/Duette 802.11(a/b/g) PCI/Cardbus support +# +CONFIG_PRISM54=m +# CONFIG_HOSTAP is not set +CONFIG_NET_WIRELESS=y + +# +# Wan interfaces +# +# CONFIG_WAN is not set +# CONFIG_FDDI is not set +# CONFIG_HIPPI is not set +# CONFIG_PPP is not set +# CONFIG_SLIP is not set +# CONFIG_NET_FC is not set +# CONFIG_SHAPER is not set +# CONFIG_NETCONSOLE is not set +# CONFIG_NETPOLL is not set +# CONFIG_NET_POLL_CONTROLLER is not set + +# +# ISDN subsystem +# +# CONFIG_ISDN is not set + +# +# Telephony Support +# +# CONFIG_PHONE is not set + +# +# Input device support +# +CONFIG_INPUT=y + +# +# Userland interfaces +# +CONFIG_INPUT_MOUSEDEV=y +# CONFIG_INPUT_MOUSEDEV_PSAUX is not set +CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024 +CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768 +# 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=y +CONFIG_KEYBOARD_ATKBD=y +# CONFIG_KEYBOARD_SUNKBD is not set +# CONFIG_KEYBOARD_LKKBD is not set +# CONFIG_KEYBOARD_XTKBD is not set +# CONFIG_KEYBOARD_NEWTON 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_PCIPS2 is not set +CONFIG_SERIO_LIBPS2=y +# 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_SERIAL_SH_SCI=y +CONFIG_SERIAL_SH_SCI_CONSOLE=y +CONFIG_SERIAL_CORE=y +CONFIG_SERIAL_CORE_CONSOLE=y +# CONFIG_SERIAL_JSM is not set +CONFIG_UNIX98_PTYS=y +CONFIG_LEGACY_PTYS=y +CONFIG_LEGACY_PTY_COUNT=256 + +# +# 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 +# +# CONFIG_TCG_TPM is not set +# CONFIG_TELCLOCK is not set + +# +# I2C support +# +# CONFIG_I2C is not set + +# +# Dallas's 1-wire bus +# +# CONFIG_W1 is not set + +# +# Hardware Monitoring support +# +CONFIG_HWMON=y +# CONFIG_HWMON_VID is not set +# CONFIG_HWMON_DEBUG_CHIP is not set + +# +# Misc devices +# + +# +# Multimedia Capabilities Port drivers +# + +# +# Multimedia devices +# +# CONFIG_VIDEO_DEV is not set + +# +# Digital Video Broadcasting Devices +# +# CONFIG_DVB is not set + +# +# Graphics support +# +# CONFIG_FB is not set + +# +# Sound +# +CONFIG_SOUND=m + +# +# Advanced Linux Sound Architecture +# +# CONFIG_SND is not set + +# +# Open Sound System +# +CONFIG_SOUND_PRIME=m +# CONFIG_OBSOLETE_OSS_DRIVER is not set +# CONFIG_SOUND_FUSION is not set +# CONFIG_SOUND_ICH is not set +# CONFIG_SOUND_TRIDENT is not set +# CONFIG_SOUND_MSNDCLAS is not set +# CONFIG_SOUND_MSNDPIN is not set + +# +# USB support +# +CONFIG_USB_ARCH_HAS_HCD=y +CONFIG_USB_ARCH_HAS_OHCI=y +# CONFIG_USB is not set + +# +# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support' +# + +# +# USB Gadget Support +# +# CONFIG_USB_GADGET is not set + +# +# MMC/SD Card support +# +# CONFIG_MMC is not set + +# +# InfiniBand support +# +# CONFIG_INFINIBAND is not set + +# +# SN Devices +# + +# +# File systems +# +CONFIG_EXT2_FS=y +# CONFIG_EXT2_FS_XATTR is not set +# CONFIG_EXT2_FS_XIP is not set +CONFIG_EXT3_FS=y +CONFIG_EXT3_FS_XATTR=y +# CONFIG_EXT3_FS_POSIX_ACL is not set +# CONFIG_EXT3_FS_SECURITY is not set +CONFIG_JBD=y +# CONFIG_JBD_DEBUG is not set +CONFIG_FS_MBCACHE=y +# CONFIG_REISERFS_FS is not set +# CONFIG_JFS_FS is not set +CONFIG_FS_POSIX_ACL=y +# CONFIG_XFS_FS is not set +CONFIG_MINIX_FS=y +# CONFIG_ROMFS_FS 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 +# CONFIG_FUSE_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_FAT_FS=y +CONFIG_MSDOS_FS=y +CONFIG_VFAT_FS=y +CONFIG_FAT_DEFAULT_CODEPAGE=437 +CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1" +CONFIG_NTFS_FS=y +# CONFIG_NTFS_DEBUG is not set +CONFIG_NTFS_RW=y + +# +# Pseudo filesystems +# +CONFIG_PROC_FS=y +CONFIG_PROC_KCORE=y +CONFIG_SYSFS=y +# CONFIG_TMPFS is not set +CONFIG_HUGETLBFS=y +CONFIG_HUGETLB_PAGE=y +CONFIG_RAMFS=y +# CONFIG_RELAYFS_FS is not set + +# +# Miscellaneous filesystems +# +# CONFIG_ADFS_FS is not set +# CONFIG_AFFS_FS is not set +# CONFIG_HFS_FS is not set +# CONFIG_HFSPLUS_FS is not set +# CONFIG_BEFS_FS is not set +# CONFIG_BFS_FS is not set +# CONFIG_EFS_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_NFS_V4=y +# CONFIG_NFS_DIRECTIO is not set +CONFIG_NFSD=y +CONFIG_NFSD_V3=y +# CONFIG_NFSD_V3_ACL is not set +CONFIG_NFSD_V4=y +CONFIG_NFSD_TCP=y +CONFIG_ROOT_NFS=y +CONFIG_LOCKD=y +CONFIG_LOCKD_V4=y +CONFIG_EXPORTFS=y +CONFIG_NFS_COMMON=y +CONFIG_SUNRPC=y +CONFIG_SUNRPC_GSS=y +CONFIG_RPCSEC_GSS_KRB5=y +# CONFIG_RPCSEC_GSS_SPKM3 is not set +# CONFIG_SMB_FS is not set +# CONFIG_CIFS is not set +# CONFIG_NCP_FS is not set +# CONFIG_CODA_FS is not set +# CONFIG_AFS_FS is not set +# CONFIG_9P_FS is not set + +# +# Partition Types +# +# CONFIG_PARTITION_ADVANCED is not set +CONFIG_MSDOS_PARTITION=y + +# +# Native Language Support +# +CONFIG_NLS=y +CONFIG_NLS_DEFAULT="iso8859-1" +CONFIG_NLS_CODEPAGE_437=y +# CONFIG_NLS_CODEPAGE_737 is not set +# CONFIG_NLS_CODEPAGE_775 is not set +# CONFIG_NLS_CODEPAGE_850 is not set +# CONFIG_NLS_CODEPAGE_852 is not set +# CONFIG_NLS_CODEPAGE_855 is not set +# CONFIG_NLS_CODEPAGE_857 is not set +# CONFIG_NLS_CODEPAGE_860 is not set +# CONFIG_NLS_CODEPAGE_861 is not set +# CONFIG_NLS_CODEPAGE_862 is not set +# CONFIG_NLS_CODEPAGE_863 is not set +# CONFIG_NLS_CODEPAGE_864 is not set +# CONFIG_NLS_CODEPAGE_865 is not set +# CONFIG_NLS_CODEPAGE_866 is not set +# CONFIG_NLS_CODEPAGE_869 is not set +# CONFIG_NLS_CODEPAGE_936 is not set +# CONFIG_NLS_CODEPAGE_950 is not set +CONFIG_NLS_CODEPAGE_932=y +# CONFIG_NLS_CODEPAGE_949 is not set +# CONFIG_NLS_CODEPAGE_874 is not set +# CONFIG_NLS_ISO8859_8 is not set +# CONFIG_NLS_CODEPAGE_1250 is not set +# CONFIG_NLS_CODEPAGE_1251 is not set +# CONFIG_NLS_ASCII is not set +CONFIG_NLS_ISO8859_1=y +# CONFIG_NLS_ISO8859_2 is not set +# CONFIG_NLS_ISO8859_3 is not set +# CONFIG_NLS_ISO8859_4 is not set +# CONFIG_NLS_ISO8859_5 is not set +# CONFIG_NLS_ISO8859_6 is not set +# CONFIG_NLS_ISO8859_7 is not set +# CONFIG_NLS_ISO8859_9 is not set +# CONFIG_NLS_ISO8859_13 is not set +# CONFIG_NLS_ISO8859_14 is not set +# CONFIG_NLS_ISO8859_15 is not set +# CONFIG_NLS_KOI8_R is not set +# CONFIG_NLS_KOI8_U is not set +# CONFIG_NLS_UTF8 is not set + +# +# Profiling support +# +# CONFIG_PROFILING 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_DETECT_SOFTLOCKUP=y +# CONFIG_SCHEDSTATS is not set +# CONFIG_DEBUG_SLAB is not set +CONFIG_DEBUG_PREEMPT=y +CONFIG_DEBUG_SPINLOCK=y +# CONFIG_DEBUG_SPINLOCK_SLEEP is not set +# CONFIG_DEBUG_KOBJECT is not set +# CONFIG_DEBUG_INFO is not set +CONFIG_DEBUG_FS=y +# CONFIG_DEBUG_VM is not set +CONFIG_FRAME_POINTER=y +# CONFIG_RCU_TORTURE_TEST is not set +# CONFIG_SH_STANDARD_BIOS is not set +# CONFIG_EARLY_SCIF_CONSOLE is not set +# CONFIG_KGDB is not set + +# +# Security options +# +# CONFIG_KEYS is not set +# CONFIG_SECURITY is not set + +# +# Cryptographic options +# +CONFIG_CRYPTO=y +CONFIG_CRYPTO_HMAC=y +# CONFIG_CRYPTO_NULL is not set +# CONFIG_CRYPTO_MD4 is not set +CONFIG_CRYPTO_MD5=y +# CONFIG_CRYPTO_SHA1 is not set +# CONFIG_CRYPTO_SHA256 is not set +# CONFIG_CRYPTO_SHA512 is not set +# CONFIG_CRYPTO_WP512 is not set +# CONFIG_CRYPTO_TGR192 is not set +CONFIG_CRYPTO_DES=y +# CONFIG_CRYPTO_BLOWFISH is not set +# CONFIG_CRYPTO_TWOFISH is not set +# CONFIG_CRYPTO_SERPENT is not set +# CONFIG_CRYPTO_AES is not set +# CONFIG_CRYPTO_CAST5 is not set +# CONFIG_CRYPTO_CAST6 is not set +# CONFIG_CRYPTO_TEA is not set +# CONFIG_CRYPTO_ARC4 is not set +# CONFIG_CRYPTO_KHAZAD is not set +# CONFIG_CRYPTO_ANUBIS is not set +# CONFIG_CRYPTO_DEFLATE is not set +# CONFIG_CRYPTO_MICHAEL_MIC is not set +# CONFIG_CRYPTO_CRC32C is not set +# CONFIG_CRYPTO_TEST is not set + +# +# Hardware crypto devices +# + +# +# Library routines +# +# CONFIG_CRC_CCITT is not set +# CONFIG_CRC16 is not set +CONFIG_CRC32=y +# CONFIG_LIBCRC32C is not set diff --git a/arch/sh/drivers/dma/Kconfig b/arch/sh/drivers/dma/Kconfig index 0f15216cd39d..defc13c37d48 100644 --- a/arch/sh/drivers/dma/Kconfig +++ b/arch/sh/drivers/dma/Kconfig @@ -11,6 +11,8 @@ config SH_DMA config NR_ONCHIP_DMA_CHANNELS depends on SH_DMA int "Number of on-chip DMAC channels" + default "8" if CPU_SUBTYPE_SH7750R || CPU_SUBTYPE_SH7751R + default "12" if CPU_SUBTYPE_SH7780 default "4" help This allows you to specify the number of channels that the on-chip @@ -52,4 +54,3 @@ config DMA_PAGE_OPS_CHANNEL are dual-address capable. endmenu - diff --git a/arch/sh/drivers/dma/dma-sh.c b/arch/sh/drivers/dma/dma-sh.c index e028a2d2a4ea..4428ee809651 100644 --- a/arch/sh/drivers/dma/dma-sh.c +++ b/arch/sh/drivers/dma/dma-sh.c @@ -11,14 +11,10 @@ * License. See the file "COPYING" in the main directory of this archive * for more details. */ - #include -#include #include #include #include -#include -#include #include #include #include "dma-sh.h" diff --git a/arch/sh/drivers/pci/Makefile b/arch/sh/drivers/pci/Makefile index 86d6d0660d4c..3d8078f1c05f 100644 --- a/arch/sh/drivers/pci/Makefile +++ b/arch/sh/drivers/pci/Makefile @@ -7,6 +7,7 @@ obj-$(CONFIG_PCI_AUTO) += pci-auto.o obj-$(CONFIG_CPU_SUBTYPE_ST40STB1) += pci-st40.o obj-$(CONFIG_CPU_SUBTYPE_SH7751) += pci-sh7751.o +obj-$(CONFIG_CPU_SUBTYPE_SH7780) += pci-sh7780.o obj-$(CONFIG_SH_DREAMCAST) += ops-dreamcast.o fixups-dreamcast.o \ dma-dreamcast.o @@ -14,4 +15,5 @@ obj-$(CONFIG_SH_SECUREEDGE5410) += ops-snapgear.o obj-$(CONFIG_SH_BIGSUR) += ops-bigsur.o obj-$(CONFIG_SH_RTS7751R2D) += ops-rts7751r2d.o fixups-rts7751r2d.o obj-$(CONFIG_SH_SH03) += ops-sh03.o fixups-sh03.o +obj-$(CONFIG_SH_R7780RP) += ops-r7780rp.o fixups-r7780rp.o obj-$(CONFIG_SH_TITAN) += ops-titan.o diff --git a/arch/sh/drivers/pci/fixups-r7780rp.c b/arch/sh/drivers/pci/fixups-r7780rp.c new file mode 100644 index 000000000000..b656b562ec99 --- /dev/null +++ b/arch/sh/drivers/pci/fixups-r7780rp.c @@ -0,0 +1,39 @@ +/* + * arch/sh/drivers/pci/fixups-r7780rp.c + * + * Highlander R7780RP-1 PCI fixups + * + * Copyright (C) 2003 Lineo uSolutions, Inc. + * Copyright (C) 2004 Paul Mundt + * + * 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 "pci-sh7780.h" +#include + +int pci_fixup_pcic(void) +{ + outl(0x000043ff, PCI_REG(SH7780_PCIIMR)); + outl(0x0000380f, PCI_REG(SH7780_PCIAINTM)); + + outl(0xfbb00047, PCI_REG(SH7780_PCICMD)); + outl(0x00000000, PCI_REG(SH7780_PCIIBAR)); + + outl(0x00011912, PCI_REG(SH7780_PCISVID)); + outl(0x08000000, PCI_REG(SH7780_PCICSCR0)); + outl(0x0000001b, PCI_REG(SH7780_PCICSAR0)); + outl(0xfd000000, PCI_REG(SH7780_PCICSCR1)); + outl(0x0000000f, PCI_REG(SH7780_PCICSAR1)); + + outl(0xfd000000, PCI_REG(SH7780_PCIMBR0)); + outl(0x00fc0000, PCI_REG(SH7780_PCIMBMR0)); + + /* Set IOBR for windows containing area specified in pci.h */ + outl((PCIBIOS_MIN_IO & ~(SH7780_PCI_IO_SIZE-1)), PCI_REG(SH7780_PCIIOBR)); + outl(((SH7780_PCI_IO_SIZE-1) & (7<<18)), PCI_REG(SH7780_PCIIOBMR)); + + return 0; +} + diff --git a/arch/sh/drivers/pci/ops-r7780rp.c b/arch/sh/drivers/pci/ops-r7780rp.c new file mode 100644 index 000000000000..3254c4e917a9 --- /dev/null +++ b/arch/sh/drivers/pci/ops-r7780rp.c @@ -0,0 +1,77 @@ +/* + * Author: Ian DaSilva (idasilva@mvista.com) + * + * Highly leveraged from pci-bigsur.c, written by Dustin McIntire. + * + * May be copied or modified under the terms of the GNU General Public + * License. See linux/COPYING for more information. + * + * PCI initialization for the Renesas SH7780 Highlander R7780RP-1 board + */ + +#include +#include +#include +#include +#include +#include +#include + +#include +#include "pci-sh7780.h" +#include + +int __init pcibios_map_platform_irq(u8 slot, u8 pin) +{ + switch (slot) { + case 0: return IRQ_PCISLOT1; /* PCI Interrupt #1 */ + case 1: return IRQ_PCISLOT2; /* PCI Interrupt #2 */ + case 2: return IRQ_PCISLOT3; /* PCI Interrupt #3 */ + case 3: return IRQ_PCISLOT4; /* PCI Interrupt E4 */ + default: + printk("PCI: Bad IRQ mapping request for slot %d, func %d\n", slot, pin-1); + return -1; + } +} + +static struct resource sh7780_io_resource = { + .name = "SH7780_IO", + .start = 0x2000, + .end = 0x2000 + SH7780_PCI_IO_SIZE - 1, + .flags = IORESOURCE_IO +}; + +static struct resource sh7780_mem_resource = { + .name = "SH7780_mem", + .start = SH7780_PCI_MEMORY_BASE, + .end = SH7780_PCI_MEMORY_BASE + SH7780_PCI_MEM_SIZE - 1, + .flags = IORESOURCE_MEM +}; + +extern struct pci_ops sh7780_pci_ops; + +struct pci_channel board_pci_channels[] = { + { &sh7780_pci_ops, &sh7780_io_resource, &sh7780_mem_resource, 0, 0xff }, + { NULL, NULL, NULL, 0, 0 }, +}; +EXPORT_SYMBOL(board_pci_channels); + +static struct sh7780_pci_address_map sh7780_pci_map = { + .window0 = { + .base = SH7780_CS2_BASE_ADDR, + .size = 0x04000000, + }, + + .window1 = { + .base = SH7780_CS3_BASE_ADDR, + .size = 0x04000000, + }, + + .flags = SH7780_PCIC_NO_RESET, +}; + +int __init pcibios_init_platform(void) +{ + return sh7780_pcic_init(&sh7780_pci_map); +} + diff --git a/arch/sh/drivers/pci/pci-auto.c b/arch/sh/drivers/pci/pci-auto.c index 4cef4d1d8c84..d55e46618549 100644 --- a/arch/sh/drivers/pci/pci-auto.c +++ b/arch/sh/drivers/pci/pci-auto.c @@ -45,11 +45,11 @@ #include #include -#undef DEBUG -#ifdef DEBUG +#define DEBUG +#ifdef DEBUG #define DBG(x...) printk(x) #else -#define DBG(x...) +#define DBG(x...) #endif /* @@ -102,7 +102,7 @@ static u32 pciauto_upper_iospc; static u32 pciauto_lower_memspc; static u32 pciauto_upper_memspc; -static void __init +static void __init pciauto_setup_bars(struct pci_channel *hose, int top_bus, int current_bus, @@ -116,7 +116,6 @@ pciauto_setup_bars(struct pci_channel *hose, int found_mem64 = 0; for (bar = PCI_BASE_ADDRESS_0; bar <= bar_limit; bar+=4) { -#if !defined(CONFIG_SH_HS7751RVOIP) && !defined(CONFIG_SH_RTS7751R2D) u32 bar_addr; /* Read the old BAR value */ @@ -125,7 +124,6 @@ pciauto_setup_bars(struct pci_channel *hose, pci_devfn, bar, &bar_addr); -#endif /* Tickle the BAR and get the response */ early_write_config_dword(hose, top_bus, @@ -140,8 +138,7 @@ pciauto_setup_bars(struct pci_channel *hose, bar, &bar_response); -#if !defined(CONFIG_SH_HS7751RVOIP) && !defined(CONFIG_SH_RTS7751R2D) - /* + /* * Write the old BAR value back out, only update the BAR * if we implicitly want resources to be updated, which * is done by the generic code further down. -- PFM. @@ -151,7 +148,6 @@ pciauto_setup_bars(struct pci_channel *hose, pci_devfn, bar, bar_addr); -#endif /* If BAR is not implemented go to the next BAR */ if (!bar_response) @@ -177,7 +173,7 @@ retry: PCI_BASE_ADDRESS_MEM_TYPE_64) found_mem64 = 1; - addr_mask = PCI_BASE_ADDRESS_MEM_MASK; + addr_mask = PCI_BASE_ADDRESS_MEM_MASK; upper_limit = &pciauto_upper_memspc; lower_limit = &pciauto_lower_memspc; DBG(" Mem"); @@ -193,22 +189,22 @@ retry: if ((bar_value + bar_size) > *upper_limit) { if (bar_response & PCI_BASE_ADDRESS_SPACE) { if (io_resource_inuse->child) { - io_resource_inuse = + io_resource_inuse = io_resource_inuse->child; - pciauto_lower_iospc = + pciauto_lower_iospc = io_resource_inuse->start; - pciauto_upper_iospc = + pciauto_upper_iospc = io_resource_inuse->end + 1; goto retry; } } else { if (mem_resource_inuse->child) { - mem_resource_inuse = + mem_resource_inuse = mem_resource_inuse->child; - pciauto_lower_memspc = + pciauto_lower_memspc = mem_resource_inuse->start; - pciauto_upper_memspc = + pciauto_upper_memspc = mem_resource_inuse->end + 1; goto retry; } @@ -230,7 +226,7 @@ retry: * If we are a 64-bit decoder then increment to the * upper 32 bits of the bar and force it to locate * in the lower 4GB of memory. - */ + */ if (found_mem64) { bar += 4; early_write_config_dword(hose, top_bus, @@ -362,7 +358,7 @@ pciauto_postscan_setup_cardbus_bridge(struct pci_channel *hose, { u32 temp; -#if !defined(CONFIG_SH_HS7751RVOIP) && !defined(CONFIG_SH_RTS7751R2D) +#if !defined(CONFIG_SH_HS7751RVOIP) && !defined(CONFIG_SH_RTS7751R2D) && !defined(CONFIG_SH_R7780RP) /* * [jsun] we always bump up baselines a little, so that if there * nothing behind P2P bridge, we don't wind up overlapping IO/MEM @@ -396,7 +392,7 @@ pciauto_postscan_setup_cardbus_bridge(struct pci_channel *hose, * configured by this routine to happily live behind a * P2P bridge in a system. */ -#if defined(CONFIG_SH_HS7751RVOIP) || defined(CONFIG_SH_RTS7751R2D) +#if defined(CONFIG_SH_HS7751RVOIP) || defined(CONFIG_SH_RTS7751R2D) || defined(CONFIG_SH_R7780RP) pciauto_lower_memspc += 0x00400000; pciauto_lower_iospc += 0x00004000; #endif @@ -433,12 +429,12 @@ pciauto_bus_scan(struct pci_channel *hose, int top_bus, int current_bus) int devfn_stop = 0xff; sub_bus = current_bus; - + if (hose->first_devfn) devfn_start = hose->first_devfn; if (hose->last_devfn) devfn_stop = hose->last_devfn; - + for (pci_devfn=devfn_start; pci_devfn> 16) == PCI_CLASS_BRIDGE_PCI) { DBG(" Bridge: primary=%.2x, secondary=%.2x\n", current_bus, sub_bus + 1); -#if defined(CONFIG_SH_HS7751RVOIP) || defined(CONFIG_SH_RTS7751R2D) +#if defined(CONFIG_SH_HS7751RVOIP) || defined(CONFIG_SH_RTS7751R2D) || defined(CONFIG_SH_R7780RP) pciauto_setup_bars(hose, top_bus, current_bus, pci_devfn, PCI_BASE_ADDRESS_1); #endif pciauto_prescan_setup_bridge(hose, top_bus, current_bus, @@ -490,10 +486,10 @@ pciauto_bus_scan(struct pci_channel *hose, int top_bus, int current_bus) DBG("PCI Autoconfig: Found CardBus bridge, device %d function %d\n", PCI_SLOT(pci_devfn), PCI_FUNC(pci_devfn)); /* Place CardBus Socket/ExCA registers */ pciauto_setup_bars(hose, top_bus, current_bus, pci_devfn, PCI_BASE_ADDRESS_0); - + pciauto_prescan_setup_cardbus_bridge(hose, top_bus, current_bus, pci_devfn, sub_bus); - + DBG("Scanning sub bus %.2x, I/O 0x%.8x, Mem 0x%.8x\n", sub_bus + 1, pciauto_lower_iospc, pciauto_lower_memspc); diff --git a/arch/sh/drivers/pci/pci-sh7751.c b/arch/sh/drivers/pci/pci-sh7751.c index 682f3dae305d..65093ec1b55e 100644 --- a/arch/sh/drivers/pci/pci-sh7751.c +++ b/arch/sh/drivers/pci/pci-sh7751.c @@ -223,7 +223,7 @@ static int __init __area_sdram_check(unsigned int area) word = inl(SH7751_BCR1); /* check BCR for SDRAM in area */ - if(((word >> area) & 1) == 0) { + if (((word >> area) & 1) == 0) { printk("PCI: Area %d is not configured for SDRAM. BCR1=0x%x\n", area, word); return 0; @@ -232,7 +232,7 @@ static int __init __area_sdram_check(unsigned int area) word = (u16)inw(SH7751_BCR2); /* check BCR2 for 32bit SDRAM interface*/ - if(((word >> (area << 1)) & 0x3) != 0x3) { + if (((word >> (area << 1)) & 0x3) != 0x3) { printk("PCI: Area %d is not 32 bit SDRAM. BCR2=0x%x\n", area, word); return 0; diff --git a/arch/sh/drivers/pci/pci-sh7780.c b/arch/sh/drivers/pci/pci-sh7780.c new file mode 100644 index 000000000000..e09721330ac2 --- /dev/null +++ b/arch/sh/drivers/pci/pci-sh7780.c @@ -0,0 +1,341 @@ +/* + * Low-Level PCI Support for the SH7780 + * + * Dustin McIntire (dustin@sensoria.com) + * Derived from arch/i386/kernel/pci-*.c which bore the message: + * (c) 1999--2000 Martin Mares + * + * Ported to the new API by Paul Mundt + * With cleanup by Paul van Gool + * + * May be copied or modified under the terms of the GNU General Public + * License. See linux/COPYING for more information. + * + */ + +#undef DEBUG + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include "pci-sh7780.h" + +static unsigned int pci_probe = PCI_PROBE_CONF1; +extern int pci_fixup_pcic(void); + +/* + * Direct access to PCI hardware... + */ + +#define CONFIG_CMD(bus, devfn, where) (0x80000000 | (bus->number << 16) | (devfn << 8) | (where & ~3)) + +/* + * Functions for accessing PCI configuration space with type 1 accesses + */ +static int sh7780_pci_read(struct pci_bus *bus, unsigned int devfn, + int where, int size, u32 *val) +{ + unsigned long flags; + u32 data; + + /* + * PCIPDR may only be accessed as 32 bit words, + * so we must do byte alignment by hand + */ + local_irq_save(flags); + outl(CONFIG_CMD(bus, devfn, where), PCI_REG(SH7780_PCIPAR)); + data = inl(PCI_REG(SH7780_PCIPDR)); + local_irq_restore(flags); + + switch (size) { + case 1: + *val = (data >> ((where & 3) << 3)) & 0xff; + break; + case 2: + *val = (data >> ((where & 2) << 3)) & 0xffff; + break; + case 4: + *val = data; + break; + default: + return PCIBIOS_FUNC_NOT_SUPPORTED; + } + + return PCIBIOS_SUCCESSFUL; +} + +/* + * Since SH7780 only does 32bit access we'll have to do a read, + * mask,write operation. + * We'll allow an odd byte offset, though it should be illegal. + */ +static int sh7780_pci_write(struct pci_bus *bus, unsigned int devfn, + int where, int size, u32 val) +{ + unsigned long flags; + int shift; + u32 data; + + local_irq_save(flags); + outl(CONFIG_CMD(bus, devfn, where), PCI_REG(SH7780_PCIPAR)); + data = inl(PCI_REG(SH7780_PCIPDR)); + local_irq_restore(flags); + + switch (size) { + case 1: + shift = (where & 3) << 3; + data &= ~(0xff << shift); + data |= ((val & 0xff) << shift); + break; + case 2: + shift = (where & 2) << 3; + data &= ~(0xffff << shift); + data |= ((val & 0xffff) << shift); + break; + case 4: + data = val; + break; + default: + return PCIBIOS_FUNC_NOT_SUPPORTED; + } + + outl(data, PCI_REG(SH7780_PCIPDR)); + + return PCIBIOS_SUCCESSFUL; +} + +#undef CONFIG_CMD + +struct pci_ops sh7780_pci_ops = { + .read = sh7780_pci_read, + .write = sh7780_pci_write, +}; + +static int __init pci_check_direct(void) +{ + unsigned int tmp, id; + + outl(0x00000001, SH7780_PCI_VCR2); /* Enable PCIC */ + + /* check for SH7780/SH7780R hardware */ + id = inl(PCI_REG(SH7780_PCIVID)); + if ((id != ((SH7780_DEVICE_ID << 16) | SH7780_VENDOR_ID)) && + (id != ((SH7781_DEVICE_ID << 16) | SH7780_VENDOR_ID))) { + printk(KERN_ERR "PCI: This is not an SH7780 (%x)\n", id); + return -ENODEV; + } + + /* + * Check if configuration works. + */ + if (pci_probe & PCI_PROBE_CONF1) { + tmp = inl(PCI_REG(SH7780_PCIPAR)); + outl(0x80000000, PCI_REG(SH7780_PCIPAR)); + if (inl(PCI_REG(SH7780_PCIPAR)) == 0x80000000) { + outl(tmp, PCI_REG(SH7780_PCIPAR)); + printk(KERN_INFO "PCI: Using configuration type 1\n"); + request_region(PCI_REG(SH7780_PCIPAR), 8, "PCI conf1"); + return 0; + } + outl(tmp, PCI_REG(SH7780_PCIPAR)); + } + + pr_debug("PCI: pci_check_direct failed\n"); + return -EINVAL; +} + +/***************************************************************************************/ + +/* + * Handle bus scanning and fixups .... + */ + +static void __init pci_fixup_ide_bases(struct pci_dev *d) +{ + int i; + + /* + * PCI IDE controllers use non-standard I/O port decoding, respect it. + */ + if ((d->class >> 8) != PCI_CLASS_STORAGE_IDE) + return; + pr_debug("PCI: IDE base address fixup for %s\n", pci_name(d)); + for(i=0; i<4; i++) { + struct resource *r = &d->resource[i]; + if ((r->start & ~0x80) == 0x374) { + r->start |= 2; + r->end = r->start; + } + } +} + +DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, pci_fixup_ide_bases); + +/* + * Called after each bus is probed, but before its children + * are examined. + */ + +void __init pcibios_fixup_bus(struct pci_bus *b) +{ + pci_read_bridge_bases(b); +} + +/* + * Initialization. Try all known PCI access methods. Note that we support + * using both PCI BIOS and direct access: in such cases, we use I/O ports + * to access config space. + * + * Note that the platform specific initialization (BSC registers, and memory + * space mapping) will be called via the machine vectors (sh_mv.mv_pci_init()) if it + * exists and via the platform defined function pcibios_init_platform(). + * See pci_bigsur.c for implementation; + * + * The BIOS version of the pci functions is not yet implemented but it is left + * in for completeness. Currently an error will be genereated at compile time. + */ + +static int __init sh7780_pci_init(void) +{ + int ret; + + pr_debug("PCI: Starting intialization.\n"); + + /* Setup the INTC */ + ctrl_outl(0x00200000, INTC_ICR0); /* INTC SH-4 Mode */ + ctrl_outl(0x00078000, INTC_INT2MSKCR); /* enable PCIINTA - PCIINTD */ + ctrl_outl(0x40000000, INTC_INTMSK1); /* disable IRL4-7 Interrupt */ + ctrl_outl(0x0000fffe, INTC_INTMSK2); /* disable IRL4-7 Interrupt */ + ctrl_outl(0x80000000, INTC_INTMSKCLR1); /* enable IRL0-3 Interrupt */ + ctrl_outl(0xfffe0000, INTC_INTMSKCLR2); /* enable IRL0-3 Interrupt */ + + if ((ret = pci_check_direct()) != 0) + return ret; + + return pcibios_init_platform(); +} + +core_initcall(sh7780_pci_init); + +int __init sh7780_pcic_init(struct sh7780_pci_address_map *map) +{ + u32 word; + + /* + * This code is unused for some boards as it is done in the + * bootloader and doing it here means the MAC addresses loaded + * by the bootloader get lost. + */ + if (!(map->flags & SH7780_PCIC_NO_RESET)) { + /* toggle PCI reset pin */ + word = SH7780_PCICR_PREFIX | SH7780_PCICR_PRST; + outl(word,PCI_REG(SH7780_PCICR)); + /* Wait for a long time... not 1 sec. but long enough */ + mdelay(100); + word = SH7780_PCICR_PREFIX; + outl(word,PCI_REG(SH7780_PCICR)); + } + + /* set the command/status bits to: + * Wait Cycle Control + Parity Enable + Bus Master + + * Mem space enable + */ + outl(0x00000046, PCI_REG(SH7780_PCICMD)); + + /* define this host as the host bridge */ + word = SH7780_PCI_HOST_BRIDGE << 24; + outl(word, PCI_REG(SH7780_PCIRID)); + + /* Set IO and Mem windows to local address + * Make PCI and local address the same for easy 1 to 1 mapping + * Window0 = map->window0.size @ non-cached area base = SDRAM + * Window1 = map->window1.size @ cached area base = SDRAM + */ + word = ((map->window0.size - 1) & 0x1ff00001) | 0x01; + outl(0x07f00001, PCI_REG(SH7780_PCILSR0)); + word = ((map->window1.size - 1) & 0x1ff00001) | 0x01; + outl(0x00000001, PCI_REG(SH7780_PCILSR1)); + /* Set the values on window 0 PCI config registers */ + word = P2SEGADDR(map->window0.base); + outl(0xa8000000, PCI_REG(SH7780_PCILAR0)); + outl(0x08000000, PCI_REG(SH7780_PCIMBAR0)); + /* Set the values on window 1 PCI config registers */ + word = P2SEGADDR(map->window1.base); + outl(0x00000000, PCI_REG(SH7780_PCILAR1)); + outl(0x00000000, PCI_REG(SH7780_PCIMBAR1)); + + /* Map IO space into PCI IO window + * The IO window is 64K-PCIBIOS_MIN_IO in size + * IO addresses will be translated to the + * PCI IO window base address + */ + PCIDBG(3,"PCI: Mapping IO address 0x%x - 0x%x to base 0x%x\n", PCIBIOS_MIN_IO, + (64*1024), SH7780_PCI_IO_BASE+PCIBIOS_MIN_IO); + + /* NOTE: I'm ignoring the PCI error IRQs for now.. + * TODO: add support for the internal error interrupts and + * DMA interrupts... + */ + +#ifdef CONFIG_SH_R7780RP + pci_fixup_pcic(); +#endif + + /* SH7780 init done, set central function init complete */ + /* use round robin mode to stop a device starving/overruning */ + word = SH7780_PCICR_PREFIX | SH7780_PCICR_CFIN | /* SH7780_PCICR_ARBM |*/ SH7780_PCICR_FTO; + outl(word, PCI_REG(SH7780_PCICR)); + + return 1; +} + +char * __init pcibios_setup(char *str) +{ + if (!strcmp(str, "off")) { + pci_probe = 0; + return NULL; + } + + return str; +} + +/* + * IRQ functions + */ +static u8 __init sh7780_no_swizzle(struct pci_dev *dev, u8 *pin) +{ + /* no swizzling */ + return PCI_SLOT(dev->devfn); +} + +static int sh7780_pci_lookup_irq(struct pci_dev *dev, u8 slot, u8 pin) +{ + int irq = -1; + + /* now lookup the actual IRQ on a platform specific basis (pci-'platform'.c) */ + irq = pcibios_map_platform_irq(slot,pin); + if( irq < 0 ) { + pr_debug("PCI: Error mapping IRQ on device %s\n", pci_name(dev)); + return irq; + } + + pr_debug("Setting IRQ for slot %s to %d\n", pci_name(dev), irq); + + return irq; +} + +void __init pcibios_fixup_irqs(void) +{ + pci_fixup_irqs(sh7780_no_swizzle, sh7780_pci_lookup_irq); +} + diff --git a/arch/sh/drivers/pci/pci-sh7780.h b/arch/sh/drivers/pci/pci-sh7780.h new file mode 100644 index 000000000000..750d5d7753a2 --- /dev/null +++ b/arch/sh/drivers/pci/pci-sh7780.h @@ -0,0 +1,168 @@ +/* + * Low-Level PCI Support for SH7780 targets + * + * Dustin McIntire (dustin@sensoria.com) (c) 2001 + * Paul Mundt (lethal@linux-sh.org) (c) 2003 + * + * May be copied or modified under the terms of the GNU General Public + * License. See linux/COPYING for more information. + * + */ + +#ifndef _PCI_SH7780_H_ +#define _PCI_SH7780_H_ + +#include + +/* set debug level 4=verbose...1=terse */ +//#define DEBUG_PCI 3 +#undef DEBUG_PCI + +#ifdef DEBUG_PCI +#define PCIDBG(n, x...) { if(DEBUG_PCI>=n) printk(x); } +#else +#define PCIDBG(n, x...) +#endif + +/* startup values */ +#define PCI_PROBE_BIOS 1 +#define PCI_PROBE_CONF1 2 +#define PCI_PROBE_CONF2 4 +#define PCI_NO_SORT 0x100 +#define PCI_BIOS_SORT 0x200 +#define PCI_NO_CHECKS 0x400 +#define PCI_ASSIGN_ROMS 0x1000 +#define PCI_BIOS_IRQ_SCAN 0x2000 + +/* Platform Specific Values */ +#define SH7780_VENDOR_ID 0x1912 +#define SH7780_DEVICE_ID 0x0002 +#define SH7781_DEVICE_ID 0x0001 + +/* SH7780 Control Registers */ +#define SH7780_PCI_VCR0 0xFE000000 +#define SH7780_PCI_VCR1 0xFE000004 +#define SH7780_PCI_VCR2 0xFE000008 + +/* SH7780 Specific Values */ +#define SH7780_PCI_CONFIG_BASE 0xFD000000 /* Config space base addr */ +#define SH7780_PCI_CONFIG_SIZE 0x01000000 /* Config space size */ +#define SH7780_PCI_MEMORY_BASE 0xFD000000 /* Memory space base addr */ +#define SH7780_PCI_MEM_SIZE 0x01000000 /* Size of Memory window */ +#if 1 +#define SH7780_PCI_IO_BASE 0xFE400000 /* IO space base address */ +#define SH7780_PCI_IO_SIZE 0x00400000 /* Size of IO window */ +#else +#define SH7780_PCI_IO_BASE 0xFE200000 /* IO space base address */ +#define SH7780_PCI_IO_SIZE 0x00200000 /* Size of IO window */ +#endif + +#define SH7780_PCIREG_BASE 0xFE040000 /* PCI regs base address */ +#define PCI_REG(n) (SH7780_PCIREG_BASE+n) + +/* SH7780 PCI Config Registers */ +#define SH7780_PCIVID 0x000 /* Vendor ID */ +#define SH7780_PCIDID 0x002 /* Device ID */ +#define SH7780_PCICMD 0x004 /* Command */ +#define SH7780_PCISTATUS 0x006 /* Status */ +#define SH7780_PCIRID 0x008 /* Revision ID */ +#define SH7780_PCIPIF 0x009 /* Program Interface */ +#define SH7780_PCISUB 0x00a /* Sub class code */ +#define SH7780_PCIBCC 0x00b /* Base class code */ +#define SH7780_PCICLS 0x00c /* Cache line size */ +#define SH7780_PCILTM 0x00d /* latency timer */ +#define SH7780_PCIHDR 0x00e /* Header type */ +#define SH7780_PCIBIST 0x00f /* BIST */ +#define SH7780_PCIIBAR 0x010 /* IO Base address */ +#define SH7780_PCIMBAR0 0x014 /* Memory base address0 */ +#define SH7780_PCIMBAR1 0x018 /* Memory base address1 */ +#define SH7780_PCISVID 0x02c /* Sub system vendor ID */ +#define SH7780_PCISID 0x02e /* Sub system ID */ +#define SH7780_PCICP 0x034 +#define SH7780_PCIINTLINE 0x03c /* Interrupt line */ +#define SH7780_PCIINTPIN 0x03d /* Interrupt pin */ +#define SH7780_PCIMINGNT 0x03e /* Minumum grand */ +#define SH7780_PCIMAXLAT 0x03f /* Maxmum latency */ +#define SH7780_PCICID 0x040 +#define SH7780_PCINIP 0x041 +#define SH7780_PCIPMC 0x042 +#define SH7780_PCIPMCSR 0x044 +#define SH7780_PCIPMCSR_BSE 0x046 +#define SH7780_PCICDD 0x047 + +/* SH7780 PCI Local Registers */ +#define SH7780_PCICR 0x100 /* PCI Control Register */ + #define SH7780_PCICR_PREFIX 0xA5000000 /* CR prefix for write */ + #define SH7780_PCICR_PFCS 0x00000800 /* TRDY/IRDY Enable */ + #define SH7780_PCICR_FTO 0x00000400 /* TRDY/IRDY Enable */ + #define SH7780_PCICR_PFE 0x00000200 /* Target Read Single */ + #define SH7780_PCICR_TBS 0x00000100 /* Target Byte Swap */ + #define SH7780_PCICR_ARBM 0x00000040 /* PCI Arbitration Mode */ + #define SH7780_PCICR_IOCS 0x00000004 /* INTA output assert */ + #define SH7780_PCICR_PRST 0x00000002 /* PCI Reset Assert */ + #define SH7780_PCICR_CFIN 0x00000001 /* Central Fun. Init Done */ +#define SH7780_PCILSR0 0x104 /* PCI Local Space Register0 */ +#define SH7780_PCILSR1 0x108 /* PCI Local Space Register1 */ +#define SH7780_PCILAR0 0x10C /* PCI Local Address Register1 */ +#define SH7780_PCILAR1 0x110 /* PCI Local Address Register1 */ +#define SH7780_PCIIR 0x114 /* PCI Interrupt Register */ +#define SH7780_PCIIMR 0x118 /* PCI Interrupt Mask Register */ +#define SH7780_PCIAIR 0x11C /* Error Address Register */ +#define SH7780_PCICIR 0x120 /* Error Command/Data Register */ +#define SH7780_PCIAINT 0x130 /* Arbiter Interrupt Register */ +#define SH7780_PCIAINTM 0x134 /* Arbiter Int. Mask Register */ +#define SH7780_PCIBMIR 0x138 /* Error Bus Master Register */ +#define SH7780_PCIPAR 0x1C0 /* PIO Address Register */ +#define SH7780_PCIPINT 0x1CC /* Power Management Int. Register */ +#define SH7780_PCIPINTM 0x1D0 /* Power Management Mask Register */ +#define SH7780_PCIMBR0 0x1E0 /* Memory Bank0 Register */ +#define SH7780_PCIMBMR0 0x1E4 /* Memory Bank0 Mask Register */ +#define SH7780_PCIMBR1 0x1E8 /* Memory Bank1 Register */ +#define SH7780_PCIMBMR1 0x1EC /* Memory Bank1 Mask Register */ +#define SH7780_PCIMBR2 0x1F0 /* Memory Bank2 Register */ +#define SH7780_PCIMBMR2 0x1F4 /* Memory Bank2 Mask Register */ +#define SH7780_PCIIOBR 0x1F8 /* Bank Register */ +#define SH7780_PCIIOBMR 0x1FC /* Bank Mask Register */ +#define SH7780_PCICSCR0 0x210 /* Cache Snoop1 Cnt. Register */ +#define SH7780_PCICSCR1 0x214 /* Cache Snoop2 Cnt. Register */ +#define SH7780_PCICSAR0 0x218 /* Cache Snoop1 Addr. Register */ +#define SH7780_PCICSAR1 0x21C /* Cache Snoop2 Addr. Register */ +#define SH7780_PCIPDR 0x220 /* Port IO Data Register */ + +/* General Memory Config Addresses */ +#define SH7780_CS0_BASE_ADDR 0x0 +#define SH7780_MEM_REGION_SIZE 0x04000000 +#define SH7780_CS1_BASE_ADDR (SH7780_CS0_BASE_ADDR + SH7780_MEM_REGION_SIZE) +#define SH7780_CS2_BASE_ADDR (SH7780_CS1_BASE_ADDR + SH7780_MEM_REGION_SIZE) +#define SH7780_CS3_BASE_ADDR (SH7780_CS2_BASE_ADDR + SH7780_MEM_REGION_SIZE) +#define SH7780_CS4_BASE_ADDR (SH7780_CS3_BASE_ADDR + SH7780_MEM_REGION_SIZE) +#define SH7780_CS5_BASE_ADDR (SH7780_CS4_BASE_ADDR + SH7780_MEM_REGION_SIZE) +#define SH7780_CS6_BASE_ADDR (SH7780_CS5_BASE_ADDR + SH7780_MEM_REGION_SIZE) + +/* General PCI values */ +#define SH7780_PCI_HOST_BRIDGE 0x6 + +/* Flags */ +#define SH7780_PCIC_NO_RESET 0x0001 + +/* External functions defined per platform i.e. Big Sur, SE... (these could be routed + * through the machine vectors... */ +extern int pcibios_init_platform(void); +extern int pcibios_map_platform_irq(u8 slot, u8 pin); + +struct sh7780_pci_address_space { + unsigned long base; + unsigned long size; +}; + +struct sh7780_pci_address_map { + struct sh7780_pci_address_space window0; + struct sh7780_pci_address_space window1; + unsigned long flags; +}; + +/* arch/sh/drivers/pci/pci-sh7780.c */ +extern int sh7780_pcic_init(struct sh7780_pci_address_map *map); + +#endif /* _PCI_SH7780_H_ */ + diff --git a/arch/sh/kernel/cpu/irq/intc2.c b/arch/sh/kernel/cpu/irq/intc2.c index 30064bf6e154..e30e4b7aa70e 100644 --- a/arch/sh/kernel/cpu/irq/intc2.c +++ b/arch/sh/kernel/cpu/irq/intc2.c @@ -241,9 +241,9 @@ static struct intc2_init { /* 110-111 reserved/unused */ #elif defined(CONFIG_CPU_SUBTYPE_SH7780) { TIMER_IRQ, 0, 24, 0, INTC_TMU0_MSK, 2}, -#ifdef CONFIG_SH_RTC - { RTC_IRQ, 4, 0, 0, INTC_RTC_MSK, TIMER_PRIORITY }, -#endif + { 21, 1, 0, 0, INTC_RTC_MSK, TIMER_PRIORITY }, + { 22, 1, 1, 0, INTC_RTC_MSK, TIMER_PRIORITY }, + { 23, 1, 2, 0, INTC_RTC_MSK, TIMER_PRIORITY }, { SCIF0_ERI_IRQ, 8, 24, 0, INTC_SCIF0_MSK, SCIF0_PRIORITY }, { SCIF0_RXI_IRQ, 8, 24, 0, INTC_SCIF0_MSK, SCIF0_PRIORITY }, { SCIF0_BRI_IRQ, 8, 24, 0, INTC_SCIF0_MSK, SCIF0_PRIORITY }, diff --git a/arch/sh/tools/mach-types b/arch/sh/tools/mach-types index 01ae394a6599..1f7f2c255ca2 100644 --- a/arch/sh/tools/mach-types +++ b/arch/sh/tools/mach-types @@ -26,4 +26,6 @@ EDOSK7705 SH_EDOSK7705 SH4202_MICRODEV SH_SH4202_MICRODEV SH03 SH_SH03 LANDISK SH_LANDISK +R7780RP SH_R7780RP +R7780MP SH_R7780MP TITAN SH_TITAN diff --git a/include/asm-sh/cpu-sh4/addrspace.h b/include/asm-sh/cpu-sh4/addrspace.h index 727634d886ce..bb2e1b03060c 100644 --- a/include/asm-sh/cpu-sh4/addrspace.h +++ b/include/asm-sh/cpu-sh4/addrspace.h @@ -22,5 +22,8 @@ #define P4SEG_TLB_DATA 0xf7000000 #define P4SEG_REG_BASE 0xff000000 +#define PA_AREA5_IO 0xb4000000 /* Area 5 IO Memory */ +#define PA_AREA6_IO 0xb8000000 /* Area 6 IO Memory */ + #endif /* __ASM_CPU_SH4_ADDRSPACE_H */ diff --git a/include/asm-sh/cpu-sh4/dma-sh7780.h b/include/asm-sh/cpu-sh4/dma-sh7780.h new file mode 100644 index 000000000000..6c90d28331b2 --- /dev/null +++ b/include/asm-sh/cpu-sh4/dma-sh7780.h @@ -0,0 +1,39 @@ +#ifndef __ASM_SH_CPU_SH4_DMA_SH7780_H +#define __ASM_SH_CPU_SH4_DMA_SH7780_H + +#define REQ_HE 0x000000C0 +#define REQ_H 0x00000080 +#define REQ_LE 0x00000040 +#define TM_BURST 0x0000020 +#define TS_8 0x00000000 +#define TS_16 0x00000008 +#define TS_32 0x00000010 +#define TS_16BLK 0x00000018 +#define TS_32BLK 0x00100000 + +/* + * The SuperH DMAC supports a number of transmit sizes, we list them here, + * with their respective values as they appear in the CHCR registers. + * + * Defaults to a 64-bit transfer size. + */ +enum { + XMIT_SZ_8BIT, + XMIT_SZ_16BIT, + XMIT_SZ_32BIT, + XMIT_SZ_128BIT, + XMIT_SZ_256BIT, +}; + +/* + * The DMA count is defined as the number of bytes to transfer. + */ +static unsigned int __attribute__ ((used)) ts_shift[] = { + [XMIT_SZ_8BIT] = 0, + [XMIT_SZ_16BIT] = 1, + [XMIT_SZ_32BIT] = 2, + [XMIT_SZ_128BIT] = 4, + [XMIT_SZ_256BIT] = 5, +}; + +#endif /* __ASM_SH_CPU_SH4_DMA_SH7780_H */ diff --git a/include/asm-sh/cpu-sh4/dma.h b/include/asm-sh/cpu-sh4/dma.h index 0dfe61f14802..3e4b3e6d80c0 100644 --- a/include/asm-sh/cpu-sh4/dma.h +++ b/include/asm-sh/cpu-sh4/dma.h @@ -1,11 +1,17 @@ #ifndef __ASM_CPU_SH4_DMA_H #define __ASM_CPU_SH4_DMA_H +#define DMAOR_INIT ( 0x8000 | DMAOR_DME ) + #ifdef CONFIG_CPU_SH4A #define SH_DMAC_BASE 0xfc808020 + +#define CHCR_TS_MASK 0x18 +#define CHCR_TS_SHIFT 3 + +#include #else #define SH_DMAC_BASE 0xffa00000 -#endif /* Definitions for the SuperH DMAC */ #define TM_BURST 0x0000080 @@ -19,8 +25,6 @@ #define DMAOR_COD 0x00000008 -#define DMAOR_INIT ( 0x8000 | DMAOR_DME ) - /* * The SuperH DMAC supports a number of transmit sizes, we list them here, * with their respective values as they appear in the CHCR registers. @@ -45,5 +49,6 @@ static unsigned int ts_shift[] __attribute__ ((used)) = { [XMIT_SZ_32BIT] = 2, [XMIT_SZ_256BIT] = 5, }; +#endif #endif /* __ASM_CPU_SH4_DMA_H */ diff --git a/include/asm-sh/hs7751rvoip/hs7751rvoip.h b/include/asm-sh/hs7751rvoip/hs7751rvoip.h index 69faf0171473..c4cff9d33927 100644 --- a/include/asm-sh/hs7751rvoip/hs7751rvoip.h +++ b/include/asm-sh/hs7751rvoip/hs7751rvoip.h @@ -19,8 +19,6 @@ #define PA_OUTPORTR 0xa400000e /* Output Port Reguster */ #define PA_VERREG 0xa4000014 /* FPGA Version Register */ -#define PA_AREA5_IO 0xb4000000 /* Area 5 IO Memory */ -#define PA_AREA6_IO 0xb8000000 /* Area 6 IO Memory */ #define PA_IDE_OFFSET 0x1f0 /* CF IDE Offset */ #define IRLCNTR1 (PA_BCR + 0) /* Interrupt Control Register1 */ diff --git a/include/asm-sh/irq-sh7780.h b/include/asm-sh/irq-sh7780.h index 7f90315cd830..895c5780e454 100644 --- a/include/asm-sh/irq-sh7780.h +++ b/include/asm-sh/irq-sh7780.h @@ -145,11 +145,6 @@ #define TMU_CH5_IPR_POS 1 #define TMU_CH5_PRIORITY 2 -#define RTC_IRQ 22 -#define RTC_IPR_ADDR INTC_INT2PRI1 -#define RTC_IPR_POS 0 -#define RTC_PRIORITY TIMER_PRIORITY - /* SCIF0 */ #define SCIF0_ERI_IRQ 40 #define SCIF0_RXI_IRQ 41 diff --git a/include/asm-sh/irq.h b/include/asm-sh/irq.h index 611e67cd0627..7e8455b1cb44 100644 --- a/include/asm-sh/irq.h +++ b/include/asm-sh/irq.h @@ -577,7 +577,7 @@ extern int ipr_irq_demux(int irq); #define NR_INTC2_IRQS 64 #elif defined(CONFIG_CPU_SUBTYPE_SH7780) #define INTC2_BASE 0xffd40000 -#define INTC2_FIRST_IRQ 22 +#define INTC2_FIRST_IRQ 21 #define INTC2_INTMSK_OFFSET (0x38) #define INTC2_INTMSKCLR_OFFSET (0x3c) #define NR_INTC2_IRQS 60 diff --git a/include/asm-sh/landisk/iodata_landisk.h b/include/asm-sh/landisk/iodata_landisk.h index 9db3cdfe6776..c74d3c73f377 100644 --- a/include/asm-sh/landisk/iodata_landisk.h +++ b/include/asm-sh/landisk/iodata_landisk.h @@ -22,8 +22,6 @@ /* 2003.10.31 I-O DATA NSD NWG add. for shutdown port clear */ #define PA_PWRINT_CLR 0xb0000006 /* Shutdown Interrupt clear Register */ -#define PA_AREA5_IO 0xb4000000 /* Area 5 IO Memory */ -#define PA_AREA6_IO 0xb8000000 /* Area 6 IO Memory */ #define PA_LCD_CLRDSP 0x00 /* LCD Clear Display Offset */ #define PA_LCD_RTNHOME 0x00 /* LCD Return Home Offset */ #define PA_LCD_ENTMODE 0x00 /* LCD Entry Mode Offset */ diff --git a/include/asm-sh/r7780rp/ide.h b/include/asm-sh/r7780rp/ide.h new file mode 100644 index 000000000000..a1ed78e0f617 --- /dev/null +++ b/include/asm-sh/r7780rp/ide.h @@ -0,0 +1,8 @@ +#ifndef __ASM_SH_R7780RP_IDE_H +#define __ASM_SH_R7780RP_IDE_H + +/* Nothing to see here.. */ +#include + +#endif /* __ASM_SH_R7780RP_IDE_H */ + diff --git a/include/asm-sh/r7780rp/r7780rp.h b/include/asm-sh/r7780rp/r7780rp.h new file mode 100644 index 000000000000..f95d9dba31a2 --- /dev/null +++ b/include/asm-sh/r7780rp/r7780rp.h @@ -0,0 +1,177 @@ +#ifndef __ASM_SH_RENESAS_R7780RP_H +#define __ASM_SH_RENESAS_R7780RP_H + +/* + * linux/include/asm-sh/r7780rp.h + * + * Copyright (C) 2000 Atom Create Engineering Co., Ltd. + * + * Renesas Solutions Highlander R7780RP support + */ + +/* Box specific addresses. */ +#if defined(CONFIG_SH_R7780MP) +#define PA_BCR 0xa4000000 /* FPGA */ +#define PA_IRLMSK (PA_BCR+0x0000) /* Interrupt Mask control */ +#define PA_IRLMON (PA_BCR+0x0002) /* Interrupt Status control */ +#define PA_IRLPRI1 (PA_BCR+0x0004) /* Interrupt Priorty 1 */ +#define PA_IRLPRI2 (PA_BCR+0x0006) /* Interrupt Priorty 2 */ +#define PA_IRLPRI3 (PA_BCR+0x0008) /* Interrupt Priorty 3 */ +#define PA_IRLPRI4 (PA_BCR+0x000a) /* Interrupt Priorty 4 */ +#define PA_RSTCTL (PA_BCR+0x000c) /* Reset Control */ +#define PA_PCIBD (PA_BCR+0x000e) /* PCI Board detect control */ +#define PA_PCICD (PA_BCR+0x0010) /* PCI Conector detect control */ +#define PA_EXTGIO (PA_BCR+0x0016) /* Extension GPIO Control */ +#define PA_IVDRMON (PA_BCR+0x0018) /* iVDR Moniter control */ +#define PA_IVDRCTL (PA_BCR+0x001a) /* iVDR control */ +#define PA_OBLED (PA_BCR+0x001c) /* On Board LED control */ +#define PA_OBSW (PA_BCR+0x001e) /* On Board Switch control */ +#define PA_AUDIOSEL (PA_BCR+0x0020) /* Sound Interface Select control */ +#define PA_EXTPLR (PA_BCR+0x001e) /* Extention Pin Polarity control */ +#define PA_TPCTL (PA_BCR+0x0100) /* Touch Panel Access control */ +#define PA_TPDCKCTL (PA_BCR+0x0102) /* Touch Panel Access data control */ +#define PA_TPCTLCLR (PA_BCR+0x0104) /* Touch Panel Access control */ +#define PA_TPXPOS (PA_BCR+0x0106) /* Touch Panel X position control */ +#define PA_TPYPOS (PA_BCR+0x0108) /* Touch Panel Y position control */ +#define PA_DBSW (PA_BCR+0x0200) /* Debug Board Switch control */ +#define PA_CFCTL (PA_BCR+0x0300) /* CF Timing control */ +#define PA_CFPOW (PA_BCR+0x0302) /* CF Power control */ +#define PA_CFCDINTCLR (PA_BCR+0x0304) /* CF Insert Interrupt clear */ +#define PA_SCSMR0 (PA_BCR+0x0400) /* SCIF0 Serial mode control */ +#define PA_SCBRR0 (PA_BCR+0x0404) /* SCIF0 Bit rate control */ +#define PA_SCSCR0 (PA_BCR+0x0408) /* SCIF0 Serial control */ +#define PA_SCFTDR0 (PA_BCR+0x040c) /* SCIF0 Send FIFO control */ +#define PA_SCFSR0 (PA_BCR+0x0410) /* SCIF0 Serial status control */ +#define PA_SCFRDR0 (PA_BCR+0x0414) /* SCIF0 Receive FIFO control */ +#define PA_SCFCR0 (PA_BCR+0x0418) /* SCIF0 FIFO control */ +#define PA_SCTFDR0 (PA_BCR+0x041c) /* SCIF0 Send FIFO data control */ +#define PA_SCRFDR0 (PA_BCR+0x0420) /* SCIF0 Receive FIFO data control */ +#define PA_SCSPTR0 (PA_BCR+0x0424) /* SCIF0 Serial Port control */ +#define PA_SCLSR0 (PA_BCR+0x0428) /* SCIF0 Line Status control */ +#define PA_SCRER0 (PA_BCR+0x042c) /* SCIF0 Serial Error control */ +#define PA_SCSMR1 (PA_BCR+0x0500) /* SCIF1 Serial mode control */ +#define PA_SCBRR1 (PA_BCR+0x0504) /* SCIF1 Bit rate control */ +#define PA_SCSCR1 (PA_BCR+0x0508) /* SCIF1 Serial control */ +#define PA_SCFTDR1 (PA_BCR+0x050c) /* SCIF1 Send FIFO control */ +#define PA_SCFSR1 (PA_BCR+0x0510) /* SCIF1 Serial status control */ +#define PA_SCFRDR1 (PA_BCR+0x0514) /* SCIF1 Receive FIFO control */ +#define PA_SCFCR1 (PA_BCR+0x0518) /* SCIF1 FIFO control */ +#define PA_SCTFDR1 (PA_BCR+0x051c) /* SCIF1 Send FIFO data control */ +#define PA_SCRFDR1 (PA_BCR+0x0520) /* SCIF1 Receive FIFO data control */ +#define PA_SCSPTR1 (PA_BCR+0x0524) /* SCIF1 Serial Port control */ +#define PA_SCLSR1 (PA_BCR+0x0528) /* SCIF1 Line Status control */ +#define PA_SCRER1 (PA_BCR+0x052c) /* SCIF1 Serial Error control */ +#define PA_ICCR (PA_BCR+0x0600) /* Serial control */ +#define PA_SAR (PA_BCR+0x0602) /* Serial Slave control */ +#define PA_MDR (PA_BCR+0x0604) /* Serial Mode control */ +#define PA_ADR1 (PA_BCR+0x0606) /* Serial Address1 control */ +#define PA_DAR1 (PA_BCR+0x0646) /* Serial Data1 control */ +#define PA_VERREG (PA_BCR+0x0700) /* FPGA Version Register */ +#define PA_POFF (PA_BCR+0x0800) /* System Power Off control */ +#define PA_PMR (PA_BCR+0x0900) /* */ + +#define PA_AX88796L 0xa4100400 /* AX88796L Area */ +#define PA_SC1602BSLB 0xa6000000 /* SC1602BSLB Area */ +#define PA_AREA5_IO 0xb4000000 /* Area 5 IO Memory */ +#define PA_AREA6_IO 0xb8000000 /* Area 6 IO Memory */ +#define PA_IDE_OFFSET 0x1f0 /* CF IDE Offset */ +#define AX88796L_IO_BASE 0x1000 /* AX88796L IO Base Address */ + +#define IRLCNTR1 (PA_BCR + 0) /* Interrupt Control Register1 */ + +#define IRQ_PCISLOT1 65 /* PCI Slot #1 IRQ */ +#define IRQ_PCISLOT2 66 /* PCI Slot #2 IRQ */ +#define IRQ_PCISLOT3 67 /* PCI Slot #3 IRQ */ +#define IRQ_PCISLOT4 68 /* PCI Slot #4 IRQ */ +#define IRQ_CFCARD 1 /* CF Card IRQ */ +// #define IRQ_CFINST 0 /* CF Card Insert IRQ */ +#define IRQ_TP 2 /* Touch Panel IRQ */ +#define IRQ_SCI1 3 /* SCI1 IRQ */ +#define IRQ_SCI0 4 /* SCI0 IRQ */ +#define IRQ_2SERIAL 5 /* Serial IRQ */ +#define IRQ_RTC 6 /* RTC A / B IRQ */ +#define IRQ_EXTENTION6 7 /* EXT6n IRQ */ +#define IRQ_EXTENTION5 8 /* EXT5n IRQ */ +#define IRQ_EXTENTION4 9 /* EXT4n IRQ */ +#define IRQ_EXTENTION2 10 /* EXT2n IRQ */ +#define IRQ_EXTENTION1 11 /* EXT1n IRQ */ +#define IRQ_ONETH 13 /* On board Ethernet IRQ */ +#define IRQ_PSW 14 /* Push Switch IRQ */ + +#else /* R7780RP */ + +#define PA_BCR 0xa5000000 /* FPGA */ +#define PA_IRLMSK (PA_BCR+0x0000) /* Interrupt Mask control */ +#define PA_IRLMON (PA_BCR+0x0002) /* Interrupt Status control */ +#define PA_SDPOW (PA_BCR+0x0004) /* SD Power control */ +#define PA_RSTCTL (PA_BCR+0x0006) /* Device Reset control */ +#define PA_PCIBD (PA_BCR+0x0008) /* PCI Board detect control */ +#define PA_PCICD (PA_BCR+0x000a) /* PCI Conector detect control */ +#define PA_ZIGIO1 (PA_BCR+0x000c) /* Zigbee IO control 1 */ +#define PA_ZIGIO2 (PA_BCR+0x000e) /* Zigbee IO control 2 */ +#define PA_ZIGIO3 (PA_BCR+0x0010) /* Zigbee IO control 3 */ +#define PA_ZIGIO4 (PA_BCR+0x0012) /* Zigbee IO control 4 */ +#define PA_IVDRMON (PA_BCR+0x0014) /* iVDR Moniter control */ +#define PA_IVDRCTL (PA_BCR+0x0016) /* iVDR control */ +#define PA_OBLED (PA_BCR+0x0018) /* On Board LED control */ +#define PA_OBSW (PA_BCR+0x001a) /* On Board Switch control */ +#define PA_AUDIOSEL (PA_BCR+0x001c) /* Sound Interface Select control */ +#define PA_EXTPLR (PA_BCR+0x001e) /* Extention Pin Polarity control */ +#define PA_TPCTL (PA_BCR+0x0100) /* Touch Panel Access control */ +#define PA_TPDCKCTL (PA_BCR+0x0102) /* Touch Panel Access data control */ +#define PA_TPCTLCLR (PA_BCR+0x0104) /* Touch Panel Access control */ +#define PA_TPXPOS (PA_BCR+0x0106) /* Touch Panel X position control */ +#define PA_TPYPOS (PA_BCR+0x0108) /* Touch Panel Y position control */ +#define PA_DBDET (PA_BCR+0x0200) /* Debug Board detect control */ +#define PA_DBDISPCTL (PA_BCR+0x0202) /* Debug Board Dot timing control */ +#define PA_DBSW (PA_BCR+0x0204) /* Debug Board Switch control */ +#define PA_CFCTL (PA_BCR+0x0300) /* CF Timing control */ +#define PA_CFPOW (PA_BCR+0x0302) /* CF Power control */ +#define PA_CFCDINTCLR (PA_BCR+0x0304) /* CF Insert Interrupt clear */ +#define PA_SCSMR (PA_BCR+0x0400) /* SCIF Serial mode control */ +#define PA_SCBRR (PA_BCR+0x0402) /* SCIF Bit rate control */ +#define PA_SCSCR (PA_BCR+0x0404) /* SCIF Serial control */ +#define PA_SCFDTR (PA_BCR+0x0406) /* SCIF Send FIFO control */ +#define PA_SCFSR (PA_BCR+0x0408) /* SCIF Serial status control */ +#define PA_SCFRDR (PA_BCR+0x040a) /* SCIF Receive FIFO control */ +#define PA_SCFCR (PA_BCR+0x040c) /* SCIF FIFO control */ +#define PA_SCFDR (PA_BCR+0x040e) /* SCIF FIFO data control */ +#define PA_SCLSR (PA_BCR+0x0412) /* SCIF Line Status control */ +#define PA_ICCR (PA_BCR+0x0500) /* Serial control */ +#define PA_SAR (PA_BCR+0x0502) /* Serial Slave control */ +#define PA_MDR (PA_BCR+0x0504) /* Serial Mode control */ +#define PA_ADR1 (PA_BCR+0x0506) /* Serial Address1 control */ +#define PA_DAR1 (PA_BCR+0x0546) /* Serial Data1 control */ +#define PA_VERREG (PA_BCR+0x0600) /* FPGA Version Register */ + +#define PA_AX88796L 0xa5800400 /* AX88796L Area */ +#define PA_SC1602BSLB 0xa6000000 /* SC1602BSLB Area */ +#define PA_AREA5_IO 0xb4000000 /* Area 5 IO Memory */ +#define PA_AREA6_IO 0xb8000000 /* Area 6 IO Memory */ +#define PA_IDE_OFFSET 0x1f0 /* CF IDE Offset */ +#define AX88796L_IO_BASE 0x1000 /* AX88796L IO Base Address */ + +#define IRLCNTR1 (PA_BCR + 0) /* Interrupt Control Register1 */ + +#define IRQ_PCISLOT1 0 /* PCI Slot #1 IRQ */ +#define IRQ_PCISLOT2 1 /* PCI Slot #2 IRQ */ +#define IRQ_PCISLOT3 2 /* PCI Slot #3 IRQ */ +#define IRQ_PCISLOT4 3 /* PCI Slot #4 IRQ */ +#define IRQ_CFCARD 4 /* CF Card IRQ */ +#define IRQ_CFINST 5 /* CF Card Insert IRQ */ +#define IRQ_M66596 6 /* M66596 IRQ */ +#define IRQ_SDCARD 7 /* SD Card IRQ */ +#define IRQ_TUCHPANEL 8 /* Touch Panel IRQ */ +#define IRQ_SCI 9 /* SCI IRQ */ +#define IRQ_2SERIAL 10 /* Serial IRQ */ +#define IRQ_EXTENTION 11 /* EXTn IRQ */ +#define IRQ_ONETH 12 /* On board Ethernet IRQ */ +#define IRQ_PSW 13 /* Push Switch IRQ */ +#define IRQ_ZIGBEE 14 /* Ziggbee IO IRQ */ + +#endif /* CONFIG_SH_R7780MP */ + +#define __IO_PREFIX r7780rp +#include + +#endif /* __ASM_SH_RENESAS_R7780RP */ diff --git a/include/asm-sh/rts7751r2d/rts7751r2d.h b/include/asm-sh/rts7751r2d/rts7751r2d.h index 4e09ba597e9a..b112ae221fd1 100644 --- a/include/asm-sh/rts7751r2d/rts7751r2d.h +++ b/include/asm-sh/rts7751r2d/rts7751r2d.h @@ -41,8 +41,6 @@ #define PA_AX88796L 0xaa000400 /* AX88796L Area */ #define PA_VOYAGER 0xab000000 /* VOYAGER GX Area */ -#define PA_AREA5_IO 0xb4000000 /* Area 5 IO Memory */ -#define PA_AREA6_IO 0xb8000000 /* Area 6 IO Memory */ #define PA_IDE_OFFSET 0x1f0 /* CF IDE Offset */ #define AX88796L_IO_BASE 0x1000 /* AX88796L IO Base Address */ -- cgit v1.2.3 From f1517494407b1f1ca0063a756cc30d75e96d433c Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Wed, 27 Sep 2006 16:01:12 +0900 Subject: sh: Cleanup and document register bank usage. Initial register bank cleanup. Make SR.RB configurable, and add some preliminary documentation on register bank usage within the kernel. Signed-off-by: Paul Mundt --- Documentation/sh/register-banks.txt | 33 +++++++++++++++++++++++++++++++++ include/asm-sh/system.h | 17 ++++++++++++++++- include/asm-sh/thread_info.h | 17 +++++++++++++++-- 3 files changed, 64 insertions(+), 3 deletions(-) create mode 100644 Documentation/sh/register-banks.txt (limited to 'include') diff --git a/Documentation/sh/register-banks.txt b/Documentation/sh/register-banks.txt new file mode 100644 index 000000000000..a6719f2f6594 --- /dev/null +++ b/Documentation/sh/register-banks.txt @@ -0,0 +1,33 @@ + Notes on register bank usage in the kernel + ========================================== + +Introduction +------------ + +The SH-3 and SH-4 CPU families traditionally include a single partial register +bank (selected by SR.RB, only r0 ... r7 are banked), whereas other families +may have more full-featured banking or simply no such capabilities at all. + +SR.RB banking +------------- + +In the case of this type of banking, banked registers are mapped directly to +r0 ... r7 if SR.RB is set to the bank we are interested in, otherwise ldc/stc +can still be used to reference the banked registers (as r0_bank ... r7_bank) +when in the context of another bank. The developer must keep the SR.RB value +in mind when writing code that utilizes these banked registers, for obvious +reasons. Userspace is also not able to poke at the bank1 values, so these can +be used rather effectively as scratch registers by the kernel. + +Presently the kernel uses several of these registers. + + - r0_bank, r1_bank (referenced as k0 and k1, used for scratch + registers when doing exception handling). + - r2_bank (used to track the EXPEVT/INTEVT code) + - Used by do_IRQ() and friends for doing irq mapping based off + of the interrupt exception vector jump table offset + - r6_bank (global interrupt mask) + - The SR.IMASK interrupt handler makes use of this to set the + interrupt priority level (used by local_irq_enable()) + - r7_bank (current) + diff --git a/include/asm-sh/system.h b/include/asm-sh/system.h index 1630a5411e5f..198d17e3069a 100644 --- a/include/asm-sh/system.h +++ b/include/asm-sh/system.h @@ -136,7 +136,8 @@ extern void __xchg_called_with_bad_pointer(void); #define set_mb(var, value) do { xchg(&var, value); } while (0) /* Interrupt Control */ -static __inline__ void local_irq_enable(void) +#ifdef CONFIG_CPU_HAS_SR_RB +static inline void local_irq_enable(void) { unsigned long __dummy0, __dummy1; @@ -149,6 +150,20 @@ static __inline__ void local_irq_enable(void) : "1" (~0x000000f0) : "memory"); } +#else +static inline void local_irq_enable(void) +{ + unsigned long __dummy0, __dummy1; + + __asm__ __volatile__ ( + "stc sr, %0\n\t" + "and %1, %0\n\t" + "ldc %0, sr\n\t" + : "=&r" (__dummy0), "=r" (__dummy1) + : "1" (~0x000000f0) + : "memory"); +} +#endif static __inline__ void local_irq_disable(void) { diff --git a/include/asm-sh/thread_info.h b/include/asm-sh/thread_info.h index 7345350d98c0..f64dd803a014 100644 --- a/include/asm-sh/thread_info.h +++ b/include/asm-sh/thread_info.h @@ -48,16 +48,29 @@ struct thread_info { #define init_thread_info (init_thread_union.thread_info) #define init_stack (init_thread_union.stack) +#define THREAD_SIZE (2*PAGE_SIZE) + /* how to get the thread information struct from C */ static inline struct thread_info *current_thread_info(void) { struct thread_info *ti; +#ifdef CONFIG_CPU_HAS_SR_RB __asm__("stc r7_bank, %0" : "=r" (ti)); +#else + unsigned long __dummy; + + __asm__ __volatile__ ( + "mov r15, %0\n\t" + "and %1, %0\n\t" + : "=&r" (ti), "=r" (__dummy) + : "1" (~(THREAD_SIZE - 1)) + : "memory"); +#endif + return ti; } /* thread information allocation */ -#define THREAD_SIZE (2*PAGE_SIZE) #define alloc_thread_info(ti) ((struct thread_info *) __get_free_pages(GFP_KERNEL,1)) #define free_thread_info(ti) free_pages((unsigned long) (ti), 1) @@ -65,7 +78,7 @@ static inline struct thread_info *current_thread_info(void) /* how to get the thread information struct from ASM */ #define GET_THREAD_INFO(reg) \ - stc r7_bank, reg + stc r7_bank, reg #endif -- cgit v1.2.3 From 00b3aa3fc9bd827caaa859de90d9eba831b77d40 Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Wed, 27 Sep 2006 16:05:56 +0900 Subject: sh: xchg()/__xchg() always_inline fixes for gcc4. Make __xchg() a macro, so that gcc 4.0 doesn't blow up thanks to always_inline.. Signed-off-by: Paul Mundt --- include/asm-sh/system.h | 57 +++++++++++++++++++++++++++---------------------- 1 file changed, 32 insertions(+), 25 deletions(-) (limited to 'include') diff --git a/include/asm-sh/system.h b/include/asm-sh/system.h index 198d17e3069a..bd7dc0554b11 100644 --- a/include/asm-sh/system.h +++ b/include/asm-sh/system.h @@ -79,10 +79,8 @@ static inline void sched_cacheflush(void) } #endif -#define xchg(ptr,x) ((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr)))) - static __inline__ unsigned long tas(volatile int *m) -{ /* #define tas(ptr) (xchg((ptr),1)) */ +{ unsigned long retval; __asm__ __volatile__ ("tas.b @%1\n\t" @@ -91,8 +89,6 @@ static __inline__ unsigned long tas(volatile int *m) return retval; } -extern void __xchg_called_with_bad_pointer(void); - /* * A brief note on ctrl_barrier(), the control register write barrier. * @@ -220,17 +216,17 @@ static __inline__ void local_irq_restore(unsigned long x) } } #else -#define local_irq_restore(x) do { \ +#define local_irq_restore(x) do { \ if ((x & 0x000000f0) != 0x000000f0) \ - local_irq_enable(); \ + local_irq_enable(); \ } while (0) #endif -#define really_restore_flags(x) do { \ +#define really_restore_flags(x) do { \ if ((x & 0x000000f0) != 0x000000f0) \ - local_irq_enable(); \ + local_irq_enable(); \ else \ - local_irq_disable(); \ + local_irq_disable(); \ } while (0) /* @@ -272,7 +268,7 @@ do { \ /* For spinlocks etc */ #define local_irq_save(x) x = local_irq_save() -static __inline__ unsigned long xchg_u32(volatile int * m, unsigned long val) +static inline unsigned long xchg_u32(volatile u32 *m, unsigned long val) { unsigned long flags, retval; @@ -283,7 +279,7 @@ static __inline__ unsigned long xchg_u32(volatile int * m, unsigned long val) return retval; } -static __inline__ unsigned long xchg_u8(volatile unsigned char * m, unsigned long val) +static inline unsigned long xchg_u8(volatile u8 *m, unsigned long val) { unsigned long flags, retval; @@ -294,19 +290,30 @@ static __inline__ unsigned long xchg_u8(volatile unsigned char * m, unsigned lon return retval; } -static __inline__ unsigned long __xchg(unsigned long x, volatile void * ptr, int size) -{ - switch (size) { - case 4: - return xchg_u32(ptr, x); - break; - case 1: - return xchg_u8(ptr, x); - break; - } - __xchg_called_with_bad_pointer(); - return x; -} +extern void __xchg_called_with_bad_pointer(void); + +#define __xchg(ptr, x, size) \ +({ \ + unsigned long __xchg__res; \ + volatile void *__xchg_ptr = (ptr); \ + switch (size) { \ + case 4: \ + __xchg__res = xchg_u32(__xchg_ptr, x); \ + break; \ + case 1: \ + __xchg__res = xchg_u8(__xchg_ptr, x); \ + break; \ + default: \ + __xchg_called_with_bad_pointer(); \ + __xchg__res = x; \ + break; \ + } \ + \ + __xchg__res; \ +}) + +#define xchg(ptr,x) \ + ((__typeof__(*(ptr)))__xchg((ptr),(unsigned long)(x), sizeof(*(ptr)))) static inline unsigned long __cmpxchg_u32(volatile int * m, unsigned long old, unsigned long new) -- cgit v1.2.3 From ef48e8e3498605351f91f195cc9af0ef981b0dde Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Wed, 27 Sep 2006 16:17:17 +0900 Subject: sh: Free up some and document PTEL flags. Drop _PAGE_SHARED/_PAGE_U0_SHARED and document Linux PTE encodings in the PTEL value. Preserve the swap cache entry encoding semantics for now, though it will need rework to free up _PAGE_WT from _PAGE_FILE. Signed-off-by: Paul Mundt --- include/asm-sh/pgtable.h | 76 ++++++++++++++++++++++++++++-------------------- 1 file changed, 45 insertions(+), 31 deletions(-) (limited to 'include') diff --git a/include/asm-sh/pgtable.h b/include/asm-sh/pgtable.h index 9728b58f7c13..41c559d8ba87 100644 --- a/include/asm-sh/pgtable.h +++ b/include/asm-sh/pgtable.h @@ -54,20 +54,41 @@ extern unsigned long empty_zero_page[PAGE_SIZE / sizeof(unsigned long)]; #define VMALLOC_START (P3SEG+0x00100000) #define VMALLOC_END (FIXADDR_START-2*PAGE_SIZE) -#define _PAGE_WT 0x001 /* WT-bit on SH-4, 0 on SH-3 */ -#define _PAGE_HW_SHARED 0x002 /* SH-bit : page is shared among processes */ -#define _PAGE_DIRTY 0x004 /* D-bit : page changed */ -#define _PAGE_CACHABLE 0x008 /* C-bit : cachable */ -#define _PAGE_SZ0 0x010 /* SZ0-bit : Size of page */ -#define _PAGE_RW 0x020 /* PR0-bit : write access allowed */ -#define _PAGE_USER 0x040 /* PR1-bit : user space access allowed */ -#define _PAGE_SZ1 0x080 /* SZ1-bit : Size of page (on SH-4) */ -#define _PAGE_PRESENT 0x100 /* V-bit : page is valid */ -#define _PAGE_PROTNONE 0x200 /* software: if not present */ -#define _PAGE_ACCESSED 0x400 /* software: page referenced */ -#define _PAGE_U0_SHARED 0x800 /* software: page is shared in user space */ - -#define _PAGE_FILE _PAGE_WT /* software: pagecache or swap? */ +/* + * Linux PTEL encoding. + * + * Hardware and software bit definitions for the PTEL value: + * + * - Bits 0 and 7 are reserved on SH-3 (_PAGE_WT and _PAGE_SZ1 on SH-4). + * + * - Bit 1 is the SH-bit, but is unused on SH-3 due to an MMU bug (the + * hardware PTEL value can't have the SH-bit set when MMUCR.IX is set, + * which is the default in cpu-sh3/mmu_context.h:MMU_CONTROL_INIT). + * + * In order to keep this relatively clean, do not use these for defining + * SH-3 specific flags until all of the other unused bits have been + * exhausted. + * + * - Bit 9 is reserved by everyone and used by _PAGE_PROTNONE. + * + * - Bits 10 and 11 are low bits of the PPN that are reserved on >= 4K pages. + * Bit 10 is used for _PAGE_ACCESSED, bit 11 remains unused. + * + * - Bits 31, 30, and 29 remain unused by everyone and can be used for future + * software flags, although care must be taken to update _PAGE_CLEAR_FLAGS. + */ +#define _PAGE_WT 0x001 /* WT-bit on SH-4, 0 on SH-3 */ +#define _PAGE_HW_SHARED 0x002 /* SH-bit : shared among processes */ +#define _PAGE_DIRTY 0x004 /* D-bit : page changed */ +#define _PAGE_CACHABLE 0x008 /* C-bit : cachable */ +#define _PAGE_SZ0 0x010 /* SZ0-bit : Size of page */ +#define _PAGE_RW 0x020 /* PR0-bit : write access allowed */ +#define _PAGE_USER 0x040 /* PR1-bit : user space access allowed */ +#define _PAGE_SZ1 0x080 /* SZ1-bit : Size of page (on SH-4) */ +#define _PAGE_PRESENT 0x100 /* V-bit : page is valid */ +#define _PAGE_PROTNONE 0x200 /* software: if not present */ +#define _PAGE_ACCESSED 0x400 /* software: page referenced */ +#define _PAGE_FILE _PAGE_WT /* software: pagecache or swap? */ /* software: moves to PTEA.TC (Timing Control) */ #define _PAGE_PCC_AREA5 0x00000000 /* use BSC registers for area5 */ @@ -82,22 +103,17 @@ extern unsigned long empty_zero_page[PAGE_SIZE / sizeof(unsigned long)]; #define _PAGE_PCC_ATR8 0x60000000 /* Attribute Memory space, 8 bit bus */ #define _PAGE_PCC_ATR16 0x60000001 /* Attribute Memory space, 6 bit bus */ -/* Mask which drop software flags - * We also drop WT bit since it is used for _PAGE_FILE - * bit in this implementation. - */ -#define _PAGE_CLEAR_FLAGS (_PAGE_WT | _PAGE_PROTNONE | _PAGE_ACCESSED | _PAGE_U0_SHARED) - -#if defined(CONFIG_CPU_SH3) -/* - * MMU on SH-3 has bug on SH-bit: We can't use it if MMUCR.IX=1. - * Work around: Just drop SH-bit. - */ -#define _PAGE_FLAGS_HARDWARE_MASK (0x1fffffff & ~(_PAGE_CLEAR_FLAGS | _PAGE_HW_SHARED)) +/* Mask which drops unused bits from the PTEL value */ +#ifdef CONFIG_CPU_SH3 +#define _PAGE_CLEAR_FLAGS (_PAGE_PROTNONE | _PAGE_ACCESSED| \ + _PAGE_FILE | _PAGE_SZ1 | \ + _PAGE_HW_SHARED) #else -#define _PAGE_FLAGS_HARDWARE_MASK (0x1fffffff & ~(_PAGE_CLEAR_FLAGS)) +#define _PAGE_CLEAR_FLAGS (_PAGE_PROTNONE | _PAGE_ACCESSED | _PAGE_FILE) #endif +#define _PAGE_FLAGS_HARDWARE_MASK (0x1fffffff & ~(_PAGE_CLEAR_FLAGS)) + /* Hardware flags: SZ0=1 (4k-byte) */ #define _PAGE_FLAGS_HARD _PAGE_SZ0 @@ -107,17 +123,15 @@ extern unsigned long empty_zero_page[PAGE_SIZE / sizeof(unsigned long)]; #define _PAGE_SZHUGE (_PAGE_SZ0 | _PAGE_SZ1) #endif -#define _PAGE_SHARED _PAGE_U0_SHARED - #define _PAGE_TABLE (_PAGE_PRESENT | _PAGE_RW | _PAGE_USER | _PAGE_ACCESSED | _PAGE_DIRTY) #define _KERNPG_TABLE (_PAGE_PRESENT | _PAGE_RW | _PAGE_ACCESSED | _PAGE_DIRTY) -#define _PAGE_CHG_MASK (PTE_MASK | _PAGE_ACCESSED | _PAGE_CACHABLE | _PAGE_DIRTY | _PAGE_SHARED) +#define _PAGE_CHG_MASK (PTE_MASK | _PAGE_ACCESSED | _PAGE_CACHABLE | _PAGE_DIRTY) #ifndef __ASSEMBLY__ #ifdef CONFIG_MMU #define PAGE_NONE __pgprot(_PAGE_PROTNONE | _PAGE_CACHABLE |_PAGE_ACCESSED | _PAGE_FLAGS_HARD) -#define PAGE_SHARED __pgprot(_PAGE_PRESENT | _PAGE_RW | _PAGE_USER | _PAGE_CACHABLE |_PAGE_ACCESSED | _PAGE_SHARED | _PAGE_FLAGS_HARD) +#define PAGE_SHARED __pgprot(_PAGE_PRESENT | _PAGE_RW | _PAGE_USER | _PAGE_CACHABLE |_PAGE_ACCESSED | _PAGE_FLAGS_HARD) #define PAGE_COPY __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_CACHABLE | _PAGE_ACCESSED | _PAGE_FLAGS_HARD) #define PAGE_READONLY __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_CACHABLE | _PAGE_ACCESSED | _PAGE_FLAGS_HARD) #define PAGE_KERNEL __pgprot(_PAGE_PRESENT | _PAGE_RW | _PAGE_CACHABLE | _PAGE_DIRTY | _PAGE_ACCESSED | _PAGE_HW_SHARED | _PAGE_FLAGS_HARD) -- cgit v1.2.3 From 3aa770e7972723f479122cf66b529017d2175289 Mon Sep 17 00:00:00 2001 From: Andriy Skulysh Date: Wed, 27 Sep 2006 16:20:22 +0900 Subject: sh: APM/PM support. This adds some simple PM stubs and the basic APM interfaces, primarily for use by hp6xx, where the existing userland expects it. Signed-off-by: Andriy Skulysh Signed-off-by: Paul Mundt --- arch/sh/Kconfig | 10 + arch/sh/boards/hp6xx/Makefile | 5 +- arch/sh/boards/hp6xx/hp6xx_apm.c | 123 +++++++ arch/sh/boards/hp6xx/pm.c | 88 +++++ arch/sh/boards/hp6xx/pm_wakeup.S | 58 ++++ arch/sh/boards/hp6xx/setup.c | 14 + arch/sh/kernel/Makefile | 2 + arch/sh/kernel/apm.c | 539 +++++++++++++++++++++++++++++ arch/sh/kernel/entry.S | 4 +- arch/sh/kernel/pm.c | 88 +++++ arch/sh/kernel/sh_ksyms.c | 4 + arch/sh/kernel/time.c | 25 ++ arch/sh/kernel/timers/timer-tmu.c | 18 +- drivers/input/touchscreen/hp680_ts_input.c | 14 - include/asm-sh/apm.h | 46 +++ include/asm-sh/cpu-sh3/freq.h | 4 + include/asm-sh/hd64461.h | 7 +- include/asm-sh/hp6xx/hp6xx.h | 53 ++- include/asm-sh/pm.h | 17 + include/asm-sh/system.h | 25 ++ include/asm-sh/timer.h | 2 + 21 files changed, 1124 insertions(+), 22 deletions(-) create mode 100644 arch/sh/boards/hp6xx/hp6xx_apm.c create mode 100644 arch/sh/boards/hp6xx/pm.c create mode 100644 arch/sh/boards/hp6xx/pm_wakeup.S create mode 100644 arch/sh/kernel/apm.c create mode 100644 arch/sh/kernel/pm.c create mode 100644 include/asm-sh/apm.h create mode 100644 include/asm-sh/pm.h (limited to 'include') diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig index fe982f0eba23..d1d724447826 100644 --- a/arch/sh/Kconfig +++ b/arch/sh/Kconfig @@ -638,6 +638,16 @@ source "fs/Kconfig.binfmt" endmenu +menu "Power management options (EXPERIMENTAL)" +depends on EXPERIMENTAL + +source kernel/power/Kconfig + +config APM + bool "Advanced Power Management Emulation" + depends on PM +endmenu + source "net/Kconfig" source "drivers/Kconfig" diff --git a/arch/sh/boards/hp6xx/Makefile b/arch/sh/boards/hp6xx/Makefile index 927fe0aa5dfa..fdf98ffcf437 100644 --- a/arch/sh/boards/hp6xx/Makefile +++ b/arch/sh/boards/hp6xx/Makefile @@ -2,5 +2,8 @@ # Makefile for the HP6xx specific parts of the kernel # -obj-y := mach.o setup.o +obj-y := mach.o setup.o +obj-$(CONFIG_PM) += pm.o pm_wakeup.o +obj-$(CONFIG_APM) += hp6xx_apm.o + diff --git a/arch/sh/boards/hp6xx/hp6xx_apm.c b/arch/sh/boards/hp6xx/hp6xx_apm.c new file mode 100644 index 000000000000..ad0e712c29f6 --- /dev/null +++ b/arch/sh/boards/hp6xx/hp6xx_apm.c @@ -0,0 +1,123 @@ +/* + * bios-less APM driver for hp680 + * + * Copyright 2005 (c) Andriy Skulysh + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License. + */ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define SH7709_PGDR 0xa400012c + +#define APM_CRITICAL 10 +#define APM_LOW 30 + +#define HP680_BATTERY_MAX 875 +#define HP680_BATTERY_MIN 600 +#define HP680_BATTERY_AC_ON 900 + +#define MODNAME "hp6x0_apm" + +static int hp6x0_apm_get_info(char *buf, char **start, off_t fpos, int length) +{ + u8 pgdr; + char *p; + int battery_status; + int battery_flag; + int ac_line_status; + int time_units = APM_BATTERY_LIFE_UNKNOWN; + + int battery = adc_single(ADC_CHANNEL_BATTERY); + int backup = adc_single(ADC_CHANNEL_BACKUP); + int charging = adc_single(ADC_CHANNEL_CHARGE); + int percentage; + + percentage = 100 * (battery - HP680_BATTERY_MIN) / + (HP680_BATTERY_MAX - HP680_BATTERY_MIN); + + ac_line_status = (battery > HP680_BATTERY_AC_ON) ? + APM_AC_ONLINE : APM_AC_OFFLINE; + + p = buf; + + pgdr = ctrl_inb(SH7709_PGDR); + if (pgdr & PGDR_MAIN_BATTERY_OUT) { + battery_status = APM_BATTERY_STATUS_NOT_PRESENT; + battery_flag = 0x80; + percentage = -1; + } else if (charging < 8 ) { + battery_status = APM_BATTERY_STATUS_CHARGING; + battery_flag = 0x08; + ac_line_status = 0xff; + } else if (percentage <= APM_CRITICAL) { + battery_status = APM_BATTERY_STATUS_CRITICAL; + battery_flag = 0x04; + } else if (percentage <= APM_LOW) { + battery_status = APM_BATTERY_STATUS_LOW; + battery_flag = 0x02; + } else { + battery_status = APM_BATTERY_STATUS_HIGH; + battery_flag = 0x01; + } + + p += sprintf(p, "1.0 1.2 0x%02x 0x%02x 0x%02x 0x%02x %d%% %d %s\n", + APM_32_BIT_SUPPORT, + ac_line_status, + battery_status, + battery_flag, + percentage, + time_units, + "min"); + p += sprintf(p, "bat=%d backup=%d charge=%d\n", + battery, backup, charging); + + return p - buf; +} + +static irqreturn_t hp6x0_apm_interrupt(int irq, void *dev, struct pt_regs *regs) +{ + if (!apm_suspended) + apm_queue_event(APM_USER_SUSPEND); + + return IRQ_HANDLED; +} + +static int __init hp6x0_apm_init(void) +{ + int ret; + + ret = request_irq(HP680_BTN_IRQ, hp6x0_apm_interrupt, + SA_INTERRUPT, MODNAME, 0); + if (unlikely(ret < 0)) { + printk(KERN_ERR MODNAME ": IRQ %d request failed\n", + HP680_BTN_IRQ); + return ret; + } + + apm_get_info = hp6x0_apm_get_info; + + return ret; +} + +static void __exit hp6x0_apm_exit(void) +{ + free_irq(HP680_BTN_IRQ, 0); + apm_get_info = 0; +} + +module_init(hp6x0_apm_init); +module_exit(hp6x0_apm_exit); + +MODULE_AUTHOR("Adriy Skulysh"); +MODULE_DESCRIPTION("hp6xx Advanced Power Management"); +MODULE_LICENSE("GPL"); diff --git a/arch/sh/boards/hp6xx/pm.c b/arch/sh/boards/hp6xx/pm.c new file mode 100644 index 000000000000..0e501bcbd7a9 --- /dev/null +++ b/arch/sh/boards/hp6xx/pm.c @@ -0,0 +1,88 @@ +/* + * hp6x0 Power Management Routines + * + * Copyright (c) 2006 Andriy Skulysh + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License. + */ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define STBCR 0xffffff82 +#define STBCR2 0xffffff88 + +static int hp6x0_pm_enter(suspend_state_t state) +{ + u8 stbcr, stbcr2; +#ifdef CONFIG_HD64461_ENABLER + u8 scr; + u16 hd64461_stbcr; +#endif + + if (state != PM_SUSPEND_MEM) + return -EINVAL; + +#ifdef CONFIG_HD64461_ENABLER + outb(0, HD64461_PCC1CSCIER); + + scr = inb(HD64461_PCC1SCR); + scr |= HD64461_PCCSCR_VCC1; + outb(scr, HD64461_PCC1SCR); + + hd64461_stbcr = inw(HD64461_STBCR); + hd64461_stbcr |= HD64461_STBCR_SPC1ST; + outw(hd64461_stbcr, HD64461_STBCR); +#endif + + ctrl_outb(0x1f, DACR); + + stbcr = ctrl_inb(STBCR); + ctrl_outb(0x01, STBCR); + + stbcr2 = ctrl_inb(STBCR2); + ctrl_outb(0x7f , STBCR2); + + outw(0xf07f, HD64461_SCPUCR); + + pm_enter(); + + outw(0, HD64461_SCPUCR); + ctrl_outb(stbcr, STBCR); + ctrl_outb(stbcr2, STBCR2); + +#ifdef CONFIG_HD64461_ENABLER + hd64461_stbcr = inw(HD64461_STBCR); + hd64461_stbcr &= ~HD64461_STBCR_SPC1ST; + outw(hd64461_stbcr, HD64461_STBCR); + + outb(0x4c, HD64461_PCC1CSCIER); + outb(0x00, HD64461_PCC1CSCR); +#endif + + return 0; +} + +/* + * Set to PM_DISK_FIRMWARE so we can quickly veto suspend-to-disk. + */ +static struct pm_ops hp6x0_pm_ops = { + .pm_disk_mode = PM_DISK_FIRMWARE, + .enter = hp6x0_pm_enter, +}; + +static int __init hp6x0_pm_init(void) +{ + pm_set_ops(&hp6x0_pm_ops); + return 0; +} + +late_initcall(hp6x0_pm_init); diff --git a/arch/sh/boards/hp6xx/pm_wakeup.S b/arch/sh/boards/hp6xx/pm_wakeup.S new file mode 100644 index 000000000000..45e9bf0b9115 --- /dev/null +++ b/arch/sh/boards/hp6xx/pm_wakeup.S @@ -0,0 +1,58 @@ +/* + * Copyright (c) 2006 Andriy Skulysh + * + * 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 + +#define k0 r0 +#define k1 r1 +#define k2 r2 +#define k3 r3 +#define k4 r4 + +/* + * Kernel mode register usage: + * k0 scratch + * k1 scratch + * k2 scratch (Exception code) + * k3 scratch (Return address) + * k4 scratch + * k5 reserved + * k6 Global Interrupt Mask (0--15 << 4) + * k7 CURRENT_THREAD_INFO (pointer to current thread info) + */ + +ENTRY(wakeup_start) +! clear STBY bit + mov #-126, k2 + and #127, k0 + mov.b k0, @k2 +! enable refresh + mov.l 5f, k1 + mov.w 6f, k0 + mov.w k0, @k1 +! jump to handler + mov.l 2f, k2 + mov.l 3f, k3 + mov.l @k2, k2 + + mov.l 4f, k1 + jmp @k1 + nop + + .align 2 +1: .long EXPEVT +2: .long INTEVT +3: .long ret_from_irq +4: .long handle_exception +5: .long 0xffffff68 +6: .word 0x0524 + +ENTRY(wakeup_end) + nop diff --git a/arch/sh/boards/hp6xx/setup.c b/arch/sh/boards/hp6xx/setup.c index 71f315663cc9..5fc00f0727c4 100644 --- a/arch/sh/boards/hp6xx/setup.c +++ b/arch/sh/boards/hp6xx/setup.c @@ -15,6 +15,9 @@ #include #include +#define SCPCR 0xa4000116 +#define SCPDR 0xa4000136 + const char *get_system_type(void) { return "HP6xx"; @@ -24,6 +27,7 @@ int __init platform_setup(void) { u8 v8; u16 v; + v = inw(HD64461_STBCR); v |= HD64461_STBCR_SURTST | HD64461_STBCR_SIRST | HD64461_STBCR_STM1ST | HD64461_STBCR_STM0ST | @@ -50,5 +54,15 @@ int __init platform_setup(void) v8 &= ~DACR_DAE; ctrl_outb(v8,DACR); + v8 = ctrl_inb(SCPDR); + v8 |= SCPDR_TS_SCAN_X | SCPDR_TS_SCAN_Y; + v8 &= ~SCPDR_TS_SCAN_ENABLE; + ctrl_outb(v8, SCPDR); + + v = ctrl_inw(SCPCR); + v &= ~SCPCR_TS_MASK; + v |= SCPCR_TS_ENABLE; + ctrl_outw(v, SCPCR); + return 0; } diff --git a/arch/sh/kernel/Makefile b/arch/sh/kernel/Makefile index 2de82b66af4a..0e2148f63e7e 100644 --- a/arch/sh/kernel/Makefile +++ b/arch/sh/kernel/Makefile @@ -18,3 +18,5 @@ obj-$(CONFIG_SH_CPU_FREQ) += cpufreq.o obj-$(CONFIG_MODULES) += module.o obj-$(CONFIG_EARLY_PRINTK) += early_printk.o obj-$(CONFIG_KEXEC) += machine_kexec.o relocate_kernel.o +obj-$(CONFIG_APM) += apm.o +obj-$(CONFIG_PM) += pm.o diff --git a/arch/sh/kernel/apm.c b/arch/sh/kernel/apm.c new file mode 100644 index 000000000000..871e7d640002 --- /dev/null +++ b/arch/sh/kernel/apm.c @@ -0,0 +1,539 @@ +/* + * bios-less APM driver for hp680 + * + * Copyright 2005 (c) Andriy Skulysh + * + * based on ARM APM driver by + * Jamey Hicks + * + * adapted from the APM BIOS driver for Linux by + * Stephen Rothwell (sfr@linuxcare.com) + * + * APM 1.2 Reference: + * Intel Corporation, Microsoft Corporation. Advanced Power Management + * (APM) BIOS Interface Specification, Revision 1.2, February 1996. + * + * [This document is available from Microsoft at: + * http://www.microsoft.com/hwdev/busbios/amp_12.htm] + */ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define MODNAME "apm" + +/* + * The apm_bios device is one of the misc char devices. + * This is its minor number. + */ +#define APM_MINOR_DEV 134 + +/* + * Maximum number of events stored + */ +#define APM_MAX_EVENTS 16 + +struct apm_queue { + unsigned int event_head; + unsigned int event_tail; + apm_event_t events[APM_MAX_EVENTS]; +}; + +/* + * The per-file APM data + */ +struct apm_user { + struct list_head list; + + unsigned int suser: 1; + unsigned int writer: 1; + unsigned int reader: 1; + + int suspend_result; + unsigned int suspend_state; +#define SUSPEND_NONE 0 /* no suspend pending */ +#define SUSPEND_PENDING 1 /* suspend pending read */ +#define SUSPEND_READ 2 /* suspend read, pending ack */ +#define SUSPEND_ACKED 3 /* suspend acked */ +#define SUSPEND_DONE 4 /* suspend completed */ + + struct apm_queue queue; +}; + +/* + * Local variables + */ +static int suspends_pending; + +static DECLARE_WAIT_QUEUE_HEAD(apm_waitqueue); +static DECLARE_WAIT_QUEUE_HEAD(apm_suspend_waitqueue); + +/* + * This is a list of everyone who has opened /dev/apm_bios + */ +static DECLARE_RWSEM(user_list_lock); +static LIST_HEAD(apm_user_list); + +/* + * kapmd info. kapmd provides us a process context to handle + * "APM" events within - specifically necessary if we're going + * to be suspending the system. + */ +static DECLARE_WAIT_QUEUE_HEAD(kapmd_wait); +static DECLARE_COMPLETION(kapmd_exit); +static DEFINE_SPINLOCK(kapmd_queue_lock); +static struct apm_queue kapmd_queue; + +int apm_suspended; +EXPORT_SYMBOL(apm_suspended); + +/* Platform-specific apm_read_proc(). */ +int (*apm_get_info)(char *buf, char **start, off_t fpos, int length); +EXPORT_SYMBOL(apm_get_info); + +/* + * APM event queue management. + */ +static inline int queue_empty(struct apm_queue *q) +{ + return q->event_head == q->event_tail; +} + +static inline apm_event_t queue_get_event(struct apm_queue *q) +{ + q->event_tail = (q->event_tail + 1) % APM_MAX_EVENTS; + return q->events[q->event_tail]; +} + +static void queue_add_event(struct apm_queue *q, apm_event_t event) +{ + q->event_head = (q->event_head + 1) % APM_MAX_EVENTS; + if (q->event_head == q->event_tail) { + static int notified; + + if (notified++ == 0) + printk(KERN_ERR "apm: an event queue overflowed\n"); + + q->event_tail = (q->event_tail + 1) % APM_MAX_EVENTS; + } + q->events[q->event_head] = event; +} + +static void queue_event_one_user(struct apm_user *as, apm_event_t event) +{ + if (as->suser && as->writer) { + switch (event) { + case APM_SYS_SUSPEND: + case APM_USER_SUSPEND: + /* + * If this user already has a suspend pending, + * don't queue another one. + */ + if (as->suspend_state != SUSPEND_NONE) + return; + + as->suspend_state = SUSPEND_PENDING; + suspends_pending++; + break; + } + } + queue_add_event(&as->queue, event); +} + +static void queue_event(apm_event_t event, struct apm_user *sender) +{ + struct apm_user *as; + + down_read(&user_list_lock); + + list_for_each_entry(as, &apm_user_list, list) + if (as != sender && as->reader) + queue_event_one_user(as, event); + + up_read(&user_list_lock); + wake_up_interruptible(&apm_waitqueue); +} + +/** + * apm_queue_event - queue an APM event for kapmd + * @event: APM event + * + * Queue an APM event for kapmd to process and ultimately take the + * appropriate action. Only a subset of events are handled: + * %APM_LOW_BATTERY + * %APM_POWER_STATUS_CHANGE + * %APM_USER_SUSPEND + * %APM_SYS_SUSPEND + * %APM_CRITICAL_SUSPEND + */ +void apm_queue_event(apm_event_t event) +{ + spin_lock_irq(&kapmd_queue_lock); + queue_add_event(&kapmd_queue, event); + spin_unlock_irq(&kapmd_queue_lock); + + wake_up_interruptible(&kapmd_wait); +} +EXPORT_SYMBOL(apm_queue_event); + +static void apm_suspend(void) +{ + struct apm_user *as; + int err; + + apm_suspended = 1; + err = pm_suspend(PM_SUSPEND_MEM); + + /* + * Anyone on the APM queues will think we're still suspended. + * Send a message so everyone knows we're now awake again. + */ + queue_event(APM_NORMAL_RESUME, NULL); + + /* + * Finally, wake up anyone who is sleeping on the suspend. + */ + down_read(&user_list_lock); + list_for_each_entry(as, &apm_user_list, list) { + as->suspend_result = err; + as->suspend_state = SUSPEND_DONE; + } + up_read(&user_list_lock); + + wake_up(&apm_suspend_waitqueue); + apm_suspended = 0; +} + +static ssize_t apm_read(struct file *fp, char __user *buf, + size_t count, loff_t *ppos) +{ + struct apm_user *as = fp->private_data; + apm_event_t event; + int i = count, ret = 0; + + if (count < sizeof(apm_event_t)) + return -EINVAL; + + if (queue_empty(&as->queue) && fp->f_flags & O_NONBLOCK) + return -EAGAIN; + + wait_event_interruptible(apm_waitqueue, !queue_empty(&as->queue)); + + while ((i >= sizeof(event)) && !queue_empty(&as->queue)) { + event = queue_get_event(&as->queue); + + ret = -EFAULT; + if (copy_to_user(buf, &event, sizeof(event))) + break; + + if (event == APM_SYS_SUSPEND || event == APM_USER_SUSPEND) + as->suspend_state = SUSPEND_READ; + + buf += sizeof(event); + i -= sizeof(event); + } + + if (i < count) + ret = count - i; + + return ret; +} + +static unsigned int apm_poll(struct file *fp, poll_table * wait) +{ + struct apm_user *as = fp->private_data; + + poll_wait(fp, &apm_waitqueue, wait); + return queue_empty(&as->queue) ? 0 : POLLIN | POLLRDNORM; +} + +/* + * apm_ioctl - handle APM ioctl + * + * APM_IOC_SUSPEND + * This IOCTL is overloaded, and performs two functions. It is used to: + * - initiate a suspend + * - acknowledge a suspend read from /dev/apm_bios. + * Only when everyone who has opened /dev/apm_bios with write permission + * has acknowledge does the actual suspend happen. + */ +static int +apm_ioctl(struct inode * inode, struct file *filp, u_int cmd, u_long arg) +{ + struct apm_user *as = filp->private_data; + unsigned long flags; + int err = -EINVAL; + + if (!as->suser || !as->writer) + return -EPERM; + + switch (cmd) { + case APM_IOC_SUSPEND: + as->suspend_result = -EINTR; + + if (as->suspend_state == SUSPEND_READ) { + /* + * If we read a suspend command from /dev/apm_bios, + * then the corresponding APM_IOC_SUSPEND ioctl is + * interpreted as an acknowledge. + */ + as->suspend_state = SUSPEND_ACKED; + suspends_pending--; + } else { + /* + * Otherwise it is a request to suspend the system. + * Queue an event for all readers, and expect an + * acknowledge from all writers who haven't already + * acknowledged. + */ + queue_event(APM_USER_SUSPEND, as); + } + + /* + * If there are no further acknowledges required, suspend + * the system. + */ + if (suspends_pending == 0) + apm_suspend(); + + /* + * Wait for the suspend/resume to complete. If there are + * pending acknowledges, we wait here for them. + * + * Note that we need to ensure that the PM subsystem does + * not kick us out of the wait when it suspends the threads. + */ + flags = current->flags; + current->flags |= PF_NOFREEZE; + + /* + * Note: do not allow a thread which is acking the suspend + * to escape until the resume is complete. + */ + if (as->suspend_state == SUSPEND_ACKED) + wait_event(apm_suspend_waitqueue, + as->suspend_state == SUSPEND_DONE); + else + wait_event_interruptible(apm_suspend_waitqueue, + as->suspend_state == SUSPEND_DONE); + + current->flags = flags; + err = as->suspend_result; + as->suspend_state = SUSPEND_NONE; + break; + } + + return err; +} + +static int apm_release(struct inode * inode, struct file * filp) +{ + struct apm_user *as = filp->private_data; + filp->private_data = NULL; + + down_write(&user_list_lock); + list_del(&as->list); + up_write(&user_list_lock); + + /* + * We are now unhooked from the chain. As far as new + * events are concerned, we no longer exist. However, we + * need to balance suspends_pending, which means the + * possibility of sleeping. + */ + if (as->suspend_state != SUSPEND_NONE) { + suspends_pending -= 1; + if (suspends_pending == 0) + apm_suspend(); + } + + kfree(as); + return 0; +} + +static int apm_open(struct inode * inode, struct file * filp) +{ + struct apm_user *as; + + as = kzalloc(sizeof(*as), GFP_KERNEL); + if (as) { + /* + * XXX - this is a tiny bit broken, when we consider BSD + * process accounting. If the device is opened by root, we + * instantly flag that we used superuser privs. Who knows, + * we might close the device immediately without doing a + * privileged operation -- cevans + */ + as->suser = capable(CAP_SYS_ADMIN); + as->writer = (filp->f_mode & FMODE_WRITE) == FMODE_WRITE; + as->reader = (filp->f_mode & FMODE_READ) == FMODE_READ; + + down_write(&user_list_lock); + list_add(&as->list, &apm_user_list); + up_write(&user_list_lock); + + filp->private_data = as; + } + + return as ? 0 : -ENOMEM; +} + +static struct file_operations apm_bios_fops = { + .owner = THIS_MODULE, + .read = apm_read, + .poll = apm_poll, + .ioctl = apm_ioctl, + .open = apm_open, + .release = apm_release, +}; + +static struct miscdevice apm_device = { + .minor = APM_MINOR_DEV, + .name = "apm_bios", + .fops = &apm_bios_fops +}; + + +#ifdef CONFIG_PROC_FS +/* + * Arguments, with symbols from linux/apm_bios.h. + * + * 0) Linux driver version (this will change if format changes) + * 1) APM BIOS Version. Usually 1.0, 1.1 or 1.2. + * 2) APM flags from APM Installation Check (0x00): + * bit 0: APM_16_BIT_SUPPORT + * bit 1: APM_32_BIT_SUPPORT + * bit 2: APM_IDLE_SLOWS_CLOCK + * bit 3: APM_BIOS_DISABLED + * bit 4: APM_BIOS_DISENGAGED + * 3) AC line status + * 0x00: Off-line + * 0x01: On-line + * 0x02: On backup power (BIOS >= 1.1 only) + * 0xff: Unknown + * 4) Battery status + * 0x00: High + * 0x01: Low + * 0x02: Critical + * 0x03: Charging + * 0x04: Selected battery not present (BIOS >= 1.2 only) + * 0xff: Unknown + * 5) Battery flag + * bit 0: High + * bit 1: Low + * bit 2: Critical + * bit 3: Charging + * bit 7: No system battery + * 0xff: Unknown + * 6) Remaining battery life (percentage of charge): + * 0-100: valid + * -1: Unknown + * 7) Remaining battery life (time units): + * Number of remaining minutes or seconds + * -1: Unknown + * 8) min = minutes; sec = seconds + */ +static int apm_read_proc(char *buf, char **start, off_t fpos, int length) +{ + if (likely(apm_get_info)) + return apm_get_info(buf, start, fpos, length); + + return -EINVAL; +} +#endif + +static int kapmd(void *arg) +{ + daemonize("kapmd"); + current->flags |= PF_NOFREEZE; + + do { + apm_event_t event; + + wait_event_interruptible(kapmd_wait, + !queue_empty(&kapmd_queue) || !pm_active); + + if (!pm_active) + break; + + spin_lock_irq(&kapmd_queue_lock); + event = 0; + if (!queue_empty(&kapmd_queue)) + event = queue_get_event(&kapmd_queue); + spin_unlock_irq(&kapmd_queue_lock); + + switch (event) { + case 0: + break; + + case APM_LOW_BATTERY: + case APM_POWER_STATUS_CHANGE: + queue_event(event, NULL); + break; + + case APM_USER_SUSPEND: + case APM_SYS_SUSPEND: + queue_event(event, NULL); + if (suspends_pending == 0) + apm_suspend(); + break; + + case APM_CRITICAL_SUSPEND: + apm_suspend(); + break; + } + } while (1); + + complete_and_exit(&kapmd_exit, 0); +} + +static int __init apm_init(void) +{ + int ret; + + pm_active = 1; + + ret = kernel_thread(kapmd, NULL, CLONE_KERNEL); + if (unlikely(ret < 0)) { + pm_active = 0; + return ret; + } + + create_proc_info_entry("apm", 0, NULL, apm_read_proc); + + ret = misc_register(&apm_device); + if (unlikely(ret != 0)) { + remove_proc_entry("apm", NULL); + + pm_active = 0; + wake_up(&kapmd_wait); + wait_for_completion(&kapmd_exit); + } + + return ret; +} + +static void __exit apm_exit(void) +{ + misc_deregister(&apm_device); + remove_proc_entry("apm", NULL); + + pm_active = 0; + wake_up(&kapmd_wait); + wait_for_completion(&kapmd_exit); +} + +module_init(apm_init); +module_exit(apm_exit); + +MODULE_AUTHOR("Stephen Rothwell, Andriy Skulysh"); +MODULE_DESCRIPTION("Advanced Power Management"); +MODULE_LICENSE("GPL"); diff --git a/arch/sh/kernel/entry.S b/arch/sh/kernel/entry.S index 306eb8d83de5..b087d34dba35 100644 --- a/arch/sh/kernel/entry.S +++ b/arch/sh/kernel/entry.S @@ -308,7 +308,7 @@ ENTRY(exception_error) .align 2 ret_from_exception: preempt_stop() -ret_from_irq: +ENTRY(ret_from_irq) ! mov #OFF_SR, r0 mov.l @(r0,r15), r0 ! get status register @@ -704,7 +704,7 @@ interrupt: ! ! .align 2 -handle_exception: +ENTRY(handle_exception) ! Using k0, k1 for scratch registers (r0_bank1, r1_bank), ! save all registers onto stack. ! diff --git a/arch/sh/kernel/pm.c b/arch/sh/kernel/pm.c new file mode 100644 index 000000000000..10ab62c9aede --- /dev/null +++ b/arch/sh/kernel/pm.c @@ -0,0 +1,88 @@ +/* + * Generic Power Management Routine + * + * Copyright (c) 2006 Andriy Skulysh + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License. + */ +#include +#include +#include +#include +#include +#include +#include + +#define INTR_OFFSET 0x600 + +#define STBCR 0xffffff82 +#define STBCR2 0xffffff88 + +#define STBCR_STBY 0x80 +#define STBCR_MSTP2 0x04 + +#define MCR 0xffffff68 +#define RTCNT 0xffffff70 + +#define MCR_RMODE 2 +#define MCR_RFSH 4 + +void pm_enter(void) +{ + u8 stbcr, csr; + u16 frqcr, mcr; + u32 vbr_new, vbr_old; + + set_bl_bit(); + + /* set wdt */ + csr = sh_wdt_read_csr(); + csr &= ~WTCSR_TME; + csr |= WTCSR_CKS_4096; + sh_wdt_write_csr(csr); + csr = sh_wdt_read_csr(); + sh_wdt_write_cnt(0); + + /* disable PLL1 */ + frqcr = ctrl_inw(FRQCR); + frqcr &= ~(FRQCR_PLLEN | FRQCR_PSTBY); + ctrl_outw(frqcr, FRQCR); + + /* enable standby */ + stbcr = ctrl_inb(STBCR); + ctrl_outb(stbcr | STBCR_STBY | STBCR_MSTP2, STBCR); + + /* set self-refresh */ + mcr = ctrl_inw(MCR); + ctrl_outw(mcr & ~MCR_RFSH, MCR); + + /* set interrupt handler */ + asm volatile("stc vbr, %0" : "=r" (vbr_old)); + vbr_new = get_zeroed_page(GFP_ATOMIC); + udelay(50); + memcpy((void*)(vbr_new + INTR_OFFSET), + &wakeup_start, &wakeup_end - &wakeup_start); + asm volatile("ldc %0, vbr" : : "r" (vbr_new)); + + ctrl_outw(0, RTCNT); + ctrl_outw(mcr | MCR_RFSH | MCR_RMODE, MCR); + + cpu_sleep(); + + asm volatile("ldc %0, vbr" : : "r" (vbr_old)); + + free_page(vbr_new); + + /* enable PLL1 */ + frqcr = ctrl_inw(FRQCR); + frqcr |= FRQCR_PSTBY; + ctrl_outw(frqcr, FRQCR); + udelay(50); + frqcr |= FRQCR_PLLEN; + ctrl_outw(frqcr, FRQCR); + + ctrl_outb(stbcr, STBCR); + + clear_bl_bit(); +} diff --git a/arch/sh/kernel/sh_ksyms.c b/arch/sh/kernel/sh_ksyms.c index b73feafcd06e..fd73ab0326e9 100644 --- a/arch/sh/kernel/sh_ksyms.c +++ b/arch/sh/kernel/sh_ksyms.c @@ -116,6 +116,10 @@ EXPORT_SYMBOL(__down_trylock); EXPORT_SYMBOL(synchronize_irq); #endif +#ifdef CONFIG_PM +EXPORT_SYMBOL(pm_suspend); +#endif + EXPORT_SYMBOL(csum_partial); #ifdef CONFIG_IPV6 EXPORT_SYMBOL(csum_ipv6_magic); diff --git a/arch/sh/kernel/time.c b/arch/sh/kernel/time.c index a1589f85499d..c8db6ca4f9d1 100644 --- a/arch/sh/kernel/time.c +++ b/arch/sh/kernel/time.c @@ -143,8 +143,33 @@ void handle_timer_tick(struct pt_regs *regs) } } +#ifdef CONFIG_PM +int timer_suspend(struct sys_device *dev, pm_message_t state) +{ + struct sys_timer *sys_timer = container_of(dev, struct sys_timer, dev); + + sys_timer->ops->stop(); + + return 0; +} + +int timer_resume(struct sys_device *dev) +{ + struct sys_timer *sys_timer = container_of(dev, struct sys_timer, dev); + + sys_timer->ops->start(); + + return 0; +} +#else +#define timer_suspend NULL +#define timer_resume NULL +#endif + static struct sysdev_class timer_sysclass = { set_kset_name("timer"), + .suspend = timer_suspend, + .resume = timer_resume, }; static int __init timer_init_sysfs(void) diff --git a/arch/sh/kernel/timers/timer-tmu.c b/arch/sh/kernel/timers/timer-tmu.c index d4212add53b2..ea4bdf8cdf0d 100644 --- a/arch/sh/kernel/timers/timer-tmu.c +++ b/arch/sh/kernel/timers/timer-tmu.c @@ -188,6 +188,18 @@ static struct clk tmu0_clk = { .ops = &tmu_clk_ops, }; +static int tmu_timer_start(void) +{ + ctrl_outb(TMU_TSTR_INIT, TMU_TSTR); + return 0; +} + +static int tmu_timer_stop(void) +{ + ctrl_outb(0, TMU_TSTR); + return 0; +} + static int tmu_timer_init(void) { unsigned long interval; @@ -197,7 +209,7 @@ static int tmu_timer_init(void) tmu0_clk.parent = clk_get("module_clk"); /* Start TMU0 */ - ctrl_outb(0, TMU_TSTR); + tmu_timer_stop(); #if !defined(CONFIG_CPU_SUBTYPE_SH7300) && !defined(CONFIG_CPU_SUBTYPE_SH7760) ctrl_outb(TMU_TOCR_INIT, TMU_TOCR); #endif @@ -211,13 +223,15 @@ static int tmu_timer_init(void) ctrl_outl(interval, TMU0_TCOR); ctrl_outl(interval, TMU0_TCNT); - ctrl_outb(TMU_TSTR_INIT, TMU_TSTR); + tmu_timer_start(); return 0; } struct sys_timer_ops tmu_timer_ops = { .init = tmu_timer_init, + .start = tmu_timer_start, + .stop = tmu_timer_stop, .get_frequency = tmu_timer_get_frequency, .get_offset = tmu_timer_get_offset, }; diff --git a/drivers/input/touchscreen/hp680_ts_input.c b/drivers/input/touchscreen/hp680_ts_input.c index fa97e0f79e7e..ee6c2f40cdf6 100644 --- a/drivers/input/touchscreen/hp680_ts_input.c +++ b/drivers/input/touchscreen/hp680_ts_input.c @@ -15,7 +15,6 @@ #define HP680_TS_ABS_Y_MIN 80 #define HP680_TS_ABS_Y_MAX 910 -#define SCPCR 0xa4000116 #define PHDR 0xa400012e #define SCPDR 0xa4000136 @@ -77,19 +76,6 @@ static irqreturn_t hp680_ts_interrupt(int irq, void *dev, struct pt_regs *regs) static int __init hp680_ts_init(void) { - u8 scpdr; - u16 scpcr; - - scpdr = ctrl_inb(SCPDR); - scpdr |= SCPDR_TS_SCAN_X | SCPDR_TS_SCAN_Y; - scpdr &= ~SCPDR_TS_SCAN_ENABLE; - ctrl_outb(scpdr, SCPDR); - - scpcr = ctrl_inw(SCPCR); - scpcr &= ~SCPCR_TS_MASK; - scpcr |= SCPCR_TS_ENABLE; - ctrl_outw(scpcr, SCPCR); - hp680_ts_dev = input_allocate_device(); if (!hp680_ts_dev) return -ENOMEM; diff --git a/include/asm-sh/apm.h b/include/asm-sh/apm.h new file mode 100644 index 000000000000..8b091e93651f --- /dev/null +++ b/include/asm-sh/apm.h @@ -0,0 +1,46 @@ +/* + * Copyright 2006 (c) Andriy Skulysh + * + * 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 __ASM_SH_APM_H +#define __ASM_SH_APM_H + +#define APM_AC_OFFLINE 0 +#define APM_AC_ONLINE 1 +#define APM_AC_BACKUP 2 +#define APM_AC_UNKNOWN 0xff + +#define APM_BATTERY_STATUS_HIGH 0 +#define APM_BATTERY_STATUS_LOW 1 +#define APM_BATTERY_STATUS_CRITICAL 2 +#define APM_BATTERY_STATUS_CHARGING 3 +#define APM_BATTERY_STATUS_NOT_PRESENT 4 +#define APM_BATTERY_STATUS_UNKNOWN 0xff + +#define APM_BATTERY_LIFE_UNKNOWN 0xFFFF +#define APM_BATTERY_LIFE_MINUTES 0x8000 +#define APM_BATTERY_LIFE_VALUE_MASK 0x7FFF + +#define APM_BATTERY_FLAG_HIGH (1 << 0) +#define APM_BATTERY_FLAG_LOW (1 << 1) +#define APM_BATTERY_FLAG_CRITICAL (1 << 2) +#define APM_BATTERY_FLAG_CHARGING (1 << 3) +#define APM_BATTERY_FLAG_NOT_PRESENT (1 << 7) +#define APM_BATTERY_FLAG_UNKNOWN 0xff + +#define APM_UNITS_MINS 0 +#define APM_UNITS_SECS 1 +#define APM_UNITS_UNKNOWN -1 + + +extern int (*apm_get_info)(char *buf, char **start, off_t fpos, int length); +extern int apm_suspended; + +void apm_queue_event(apm_event_t event); + +#endif diff --git a/include/asm-sh/cpu-sh3/freq.h b/include/asm-sh/cpu-sh3/freq.h index b61b6e331df0..273f3229785c 100644 --- a/include/asm-sh/cpu-sh3/freq.h +++ b/include/asm-sh/cpu-sh3/freq.h @@ -18,5 +18,9 @@ #define MIN_DIVISOR_NR 0 #define MAX_DIVISOR_NR 4 +#define FRQCR_CKOEN 0x0100 +#define FRQCR_PLLEN 0x0080 +#define FRQCR_PSTBY 0x0040 + #endif /* __ASM_CPU_SH3_FREQ_H */ diff --git a/include/asm-sh/hd64461.h b/include/asm-sh/hd64461.h index 0f2e2132cc35..27e5c34e2659 100644 --- a/include/asm-sh/hd64461.h +++ b/include/asm-sh/hd64461.h @@ -40,7 +40,12 @@ #define HD64461_LCDCBAR 0x11000 #define HD64461_LCDCLOR 0x11002 #define HD64461_LCDCCR 0x11004 -#define HD64461_LCDCCR_MOFF 0x80 +#define HD64461_LCDCCR_STBACK 0x0400 +#define HD64461_LCDCCR_STREQ 0x0100 +#define HD64461_LCDCCR_MOFF 0x0080 +#define HD64461_LCDCCR_REFSEL 0x0040 +#define HD64461_LCDCCR_EPON 0x0020 +#define HD64461_LCDCCR_SPON 0x0010 #define HD64461_LDR1 0x11010 #define HD64461_LDR1_DON 0x01 diff --git a/include/asm-sh/hp6xx/hp6xx.h b/include/asm-sh/hp6xx/hp6xx.h index a26247fd3d87..f35134c159dd 100644 --- a/include/asm-sh/hp6xx/hp6xx.h +++ b/include/asm-sh/hp6xx/hp6xx.h @@ -2,16 +2,33 @@ #define __ASM_SH_HP6XX_H /* - * Copyright (C) 2003 Andriy Skulysh + * Copyright (C) 2003, 2004, 2005 Andriy Skulysh + * + * 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. + * */ -#define HP680_TS_IRQ IRQ3_IRQ +#define HP680_BTN_IRQ IRQ0_IRQ +#define HP680_TS_IRQ IRQ3_IRQ +#define HP680_HD64461_IRQ IRQ4_IRQ #define DAC_LCD_BRIGHTNESS 0 #define DAC_SPEAKER_VOLUME 1 +#define PGDR_OPENED 0x01 +#define PGDR_MAIN_BATTERY_OUT 0x04 +#define PGDR_PLAY_BUTTON 0x08 +#define PGDR_REWIND_BUTTON 0x10 +#define PGDR_RECORD_BUTTON 0x20 + #define PHDR_TS_PEN_DOWN 0x08 +#define PJDR_LED_BLINK 0x02 + +#define PKDR_LED_GREEN 0x10 + #define SCPDR_TS_SCAN_ENABLE 0x20 #define SCPDR_TS_SCAN_Y 0x02 #define SCPDR_TS_SCAN_X 0x01 @@ -21,11 +38,43 @@ #define ADC_CHANNEL_TS_Y 1 #define ADC_CHANNEL_TS_X 2 +#define ADC_CHANNEL_BATTERY 3 +#define ADC_CHANNEL_BACKUP 4 +#define ADC_CHANNEL_CHARGE 5 #define HD64461_GPADR_SPEAKER 0x01 #define HD64461_GPADR_PCMCIA0 (0x02|0x08) + #define HD64461_GPBDR_LCDOFF 0x01 +#define HD64461_GPBDR_LCD_CONTRAST_MASK 0x78 #define HD64461_GPBDR_LED_RED 0x80 +#include +#include + +#define PJDR 0xa4000130 +#define PKDR 0xa4000132 + +static inline void hp6xx_led_red(int on) +{ + u16 v16; + v16 = ctrl_inw(CONFIG_HD64461_IOBASE + HD64461_GPBDR - 0x10000); + if (on) + ctrl_outw(v16 & (~HD64461_GPBDR_LED_RED), CONFIG_HD64461_IOBASE + HD64461_GPBDR - 0x10000); + else + ctrl_outw(v16 | HD64461_GPBDR_LED_RED, CONFIG_HD64461_IOBASE + HD64461_GPBDR - 0x10000); +} + +static inline void hp6xx_led_green(int on) +{ + u8 v8; + + v8 = ctrl_inb(PKDR); + if (on) + ctrl_outb(v8 & (~PKDR_LED_GREEN), PKDR); + else + ctrl_outb(v8 | PKDR_LED_GREEN, PKDR); +} + #endif /* __ASM_SH_HP6XX_H */ diff --git a/include/asm-sh/pm.h b/include/asm-sh/pm.h new file mode 100644 index 000000000000..56fdbd6b1c94 --- /dev/null +++ b/include/asm-sh/pm.h @@ -0,0 +1,17 @@ +/* + * 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 2006 (c) Andriy Skulysh + * + */ +#ifndef __ASM_SH_PM_H +#define __ASM_SH_PM_H + +extern u8 wakeup_start; +extern u8 wakeup_end; + +void pm_enter(void); + +#endif diff --git a/include/asm-sh/system.h b/include/asm-sh/system.h index bd7dc0554b11..477422afeb0d 100644 --- a/include/asm-sh/system.h +++ b/include/asm-sh/system.h @@ -172,6 +172,31 @@ static __inline__ void local_irq_disable(void) : "memory"); } +static __inline__ void set_bl_bit(void) +{ + unsigned long __dummy0, __dummy1; + + __asm__ __volatile__ ("stc sr, %0\n\t" + "or %2, %0\n\t" + "and %3, %0\n\t" + "ldc %0, sr" + : "=&r" (__dummy0), "=r" (__dummy1) + : "r" (0x10000000), "r" (0xffffff0f) + : "memory"); +} + +static __inline__ void clear_bl_bit(void) +{ + unsigned long __dummy0, __dummy1; + + __asm__ __volatile__ ("stc sr, %0\n\t" + "and %2, %0\n\t" + "ldc %0, sr" + : "=&r" (__dummy0), "=r" (__dummy1) + : "1" (~0x10000000) + : "memory"); +} + #define local_save_flags(x) \ __asm__("stc sr, %0; and #0xf0, %0" : "=&z" (x) :/**/: "memory" ) diff --git a/include/asm-sh/timer.h b/include/asm-sh/timer.h index dd6579c0b04c..c7ab28095ba0 100644 --- a/include/asm-sh/timer.h +++ b/include/asm-sh/timer.h @@ -6,6 +6,8 @@ struct sys_timer_ops { int (*init)(void); + int (*start)(void); + int (*stop)(void); unsigned long (*get_offset)(void); unsigned long (*get_frequency)(void); }; -- cgit v1.2.3 From 56e8d7b5786dc2f7d1f701500f8914fd2c52b111 Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Wed, 27 Sep 2006 16:24:55 +0900 Subject: sh: kgdb stub cleanups. Some kgdb cleanup. Move hexchars/highhex/lowhex to the header, so it can be reused by sh-sci. Also drop silly ctrl_inl/outl() overloading being done by the kgdb stub. Signed-off-by: Paul Mundt --- arch/sh/kernel/kgdb_stub.c | 33 +++++---------------------------- include/asm-sh/kgdb.h | 15 +++++++++++++++ 2 files changed, 20 insertions(+), 28 deletions(-) (limited to 'include') diff --git a/arch/sh/kernel/kgdb_stub.c b/arch/sh/kernel/kgdb_stub.c index 42638b92b51c..9c6315f0335d 100644 --- a/arch/sh/kernel/kgdb_stub.c +++ b/arch/sh/kernel/kgdb_stub.c @@ -101,16 +101,17 @@ #include #include +#ifdef CONFIG_SH_KGDB_CONSOLE +#include +#endif + #include #include #include #include #include #include - -#ifdef CONFIG_SH_KGDB_CONSOLE -#include -#endif +#include /* Function pointers for linkage */ kgdb_debug_hook_t *kgdb_debug_hook; @@ -240,7 +241,6 @@ static jmp_buf rem_com_env; /* Misc static */ static int stepped_address; static short stepped_opcode; -static const char hexchars[] = "0123456789abcdef"; static char in_buffer[BUFMAX]; static char out_buffer[OUTBUFMAX]; @@ -253,29 +253,6 @@ typedef unsigned char threadref[8]; #define BUF_THREAD_ID_SIZE 16 #endif -/* Return addr as a real volatile address */ -static inline unsigned int ctrl_inl(const unsigned long addr) -{ - return *(volatile unsigned long *) addr; -} - -/* Correctly set *addr using volatile */ -static inline void ctrl_outl(const unsigned int b, unsigned long addr) -{ - *(volatile unsigned long *) addr = b; -} - -/* Get high hex bits */ -static char highhex(const int x) -{ - return hexchars[(x >> 4) & 0xf]; -} - -/* Get low hex bits */ -static char lowhex(const int x) -{ - return hexchars[x & 0xf]; -} /* Convert ch to hex */ static int hex(const char ch) diff --git a/include/asm-sh/kgdb.h b/include/asm-sh/kgdb.h index 1653ffb75fbe..7b26f53fe343 100644 --- a/include/asm-sh/kgdb.h +++ b/include/asm-sh/kgdb.h @@ -128,4 +128,19 @@ extern int setjmp(jmp_buf __jmpb); #define KGDB_ASSERT(condition, message) #endif +/* Taken from sh-stub.c of GDB 4.18 */ +static const char hexchars[] = "0123456789abcdef"; + +/* Get high hex bits */ +static inline char highhex(const int x) +{ + return hexchars[(x >> 4) & 0xf]; +} + +/* Get low hex bits */ +static inline char lowhex(const int x) +{ + return hexchars[x & 0xf]; +} + #endif -- cgit v1.2.3 From 959f85f8a3223c116bbe95dd8a9b207790b5d4d3 Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Wed, 27 Sep 2006 16:43:28 +0900 Subject: sh: Consolidated SH7751/SH7780 PCI support. This cleans up quite a lot of the PCI mess that we currently have, and attempts to consolidate the duplication in the SH7780 and SH7751 PCI controllers. Signed-off-by: Paul Mundt --- arch/sh/boards/landisk/Makefile | 2 - arch/sh/boards/landisk/io.c | 100 ++++------ arch/sh/boards/mpc1211/setup.c | 15 +- arch/sh/boards/renesas/hs7751rvoip/io.c | 116 ++++-------- arch/sh/boards/renesas/r7780rp/io.c | 103 ++++------ arch/sh/boards/renesas/rts7751r2d/io.c | 89 ++++----- arch/sh/boards/renesas/systemh/io.c | 67 ++----- arch/sh/boards/se/770x/io.c | 11 +- arch/sh/boards/se/7751/io.c | 145 +++----------- arch/sh/boards/sh03/setup.c | 6 +- arch/sh/boards/snapgear/io.c | 84 +++------ arch/sh/boards/titan/io.c | 65 +++---- arch/sh/cchips/hd6446x/hd64461/io.c | 9 +- arch/sh/drivers/pci/Makefile | 5 +- arch/sh/drivers/pci/fixups-dreamcast.c | 38 +--- arch/sh/drivers/pci/fixups-r7780rp.c | 38 ++-- arch/sh/drivers/pci/fixups-rts7751r2d.c | 24 +-- arch/sh/drivers/pci/fixups-sh03.c | 38 +--- arch/sh/drivers/pci/ops-bigsur.c | 18 +- arch/sh/drivers/pci/ops-landisk.c | 68 +++++++ arch/sh/drivers/pci/ops-r7780rp.c | 18 +- arch/sh/drivers/pci/ops-rts7751r2d.c | 13 +- arch/sh/drivers/pci/ops-sh4.c | 164 ++++++++++++++++ arch/sh/drivers/pci/ops-snapgear.c | 21 +-- arch/sh/drivers/pci/ops-titan.c | 16 +- arch/sh/drivers/pci/pci-auto.c | 10 - arch/sh/drivers/pci/pci-sh4.h | 180 ++++++++++++++++++ arch/sh/drivers/pci/pci-sh7751.c | 322 ++++++-------------------------- arch/sh/drivers/pci/pci-sh7751.h | 174 +---------------- arch/sh/drivers/pci/pci-sh7780.c | 270 ++++---------------------- arch/sh/drivers/pci/pci-sh7780.h | 94 +--------- arch/sh/drivers/pci/pci-st40.c | 19 -- arch/sh/drivers/pci/pci.c | 40 +++- arch/sh/kernel/cpu/sh4/Makefile | 3 + arch/sh/kernel/cpu/sh4/setup-sh7780.c | 79 ++++++++ include/asm-sh/io.h | 5 + include/asm-sh/pci.h | 35 +++- 37 files changed, 984 insertions(+), 1520 deletions(-) create mode 100644 arch/sh/drivers/pci/ops-landisk.c create mode 100644 arch/sh/drivers/pci/ops-sh4.c create mode 100644 arch/sh/drivers/pci/pci-sh4.h create mode 100644 arch/sh/kernel/cpu/sh4/setup-sh7780.c (limited to 'include') diff --git a/arch/sh/boards/landisk/Makefile b/arch/sh/boards/landisk/Makefile index 60e75c6db0eb..89e4beb2ad47 100644 --- a/arch/sh/boards/landisk/Makefile +++ b/arch/sh/boards/landisk/Makefile @@ -3,5 +3,3 @@ # obj-y := setup.o io.o irq.o rtc.o landisk_pwb.o - -obj-$(CONFIG_PCI) += pci.o diff --git a/arch/sh/boards/landisk/io.c b/arch/sh/boards/landisk/io.c index aa6b145c9e8f..92498b4947d5 100644 --- a/arch/sh/boards/landisk/io.c +++ b/arch/sh/boards/landisk/io.c @@ -14,39 +14,16 @@ * modifed by kogiidena * 2005.03.03 */ - #include #include +#include #include #include #include -#include -#include -#include "../../drivers/pci/pci-sh7751.h" - extern void *area5_io_base; /* Area 5 I/O Base address */ extern void *area6_io_base; /* Area 6 I/O Base address */ -/* - * The 7751R LANDISK uses the built-in PCI controller (PCIC) - * of the 7751R processor, and has a SuperIO accessible via the PCI. - * The board also includes a PCMCIA controller on its memory bus, - * like the other Solution Engine boards. - */ - -#define PCIIOBR (volatile long *)PCI_REG(SH7751_PCIIOBR) -#define PCIMBR (volatile long *)PCI_REG(SH7751_PCIMBR) -#define PCI_IO_AREA SH7751_PCI_IO_BASE -#define PCI_MEM_AREA SH7751_PCI_CONFIG_BASE - -#define PCI_IOMAP(adr) (PCI_IO_AREA + (adr & ~SH7751_PCIIOBR_MASK)) - -static inline void delay(void) -{ - ctrl_inw(0xa0000000); -} - static inline unsigned long port2adr(unsigned int port) { if ((0x1f0 <= port && port < 0x1f8) || port == 0x3f6) @@ -67,17 +44,6 @@ static inline unsigned long port2adr(unsigned int port) return port; } -/* In case someone configures the kernel w/o PCI support: in that */ -/* scenario, don't ever bother to check for PCI-window addresses */ - -/* NOTE: WINDOW CHECK MAY BE A BIT OFF, HIGH PCIBIOS_MIN_IO WRAPS? */ -#if defined(CONFIG_PCI) -#define CHECK_SH7751_PCIIO(port) \ - ((port >= PCIBIOS_MIN_IO) && (port < (PCIBIOS_MIN_IO + SH7751_PCI_IO_SIZE))) -#else -#define CHECK_SH_7751_PCIIO(port) (0) -#endif - /* * General outline: remap really low stuff [eventually] to SuperIO, * stuff in PCI IO space (at or above window at pci.h:PCIBIOS_MIN_IO) @@ -89,8 +55,8 @@ u8 landisk_inb(unsigned long port) { if (PXSEG(port)) return ctrl_inb(port); - else if (CHECK_SH7751_PCIIO(port)) - return ctrl_inb(PCI_IOMAP(port)); + else if (is_pci_ioaddr(port)) + return ctrl_inb(pci_ioaddr(port)); return ctrl_inw(port2adr(port)) & 0xff; } @@ -101,12 +67,12 @@ u8 landisk_inb_p(unsigned long port) if (PXSEG(port)) v = ctrl_inb(port); - else if (CHECK_SH7751_PCIIO(port)) - v = ctrl_inb(PCI_IOMAP(port)); + else if (is_pci_ioaddr(port)) + v = ctrl_inb(pci_ioaddr(port)); else v = ctrl_inw(port2adr(port)) & 0xff; - delay(); + ctrl_delay(); return v; } @@ -115,8 +81,8 @@ u16 landisk_inw(unsigned long port) { if (PXSEG(port)) return ctrl_inw(port); - else if (CHECK_SH7751_PCIIO(port)) - return ctrl_inw(PCI_IOMAP(port)); + else if (is_pci_ioaddr(port)) + return ctrl_inw(pci_ioaddr(port)); else maybebadio(port); @@ -127,8 +93,8 @@ u32 landisk_inl(unsigned long port) { if (PXSEG(port)) return ctrl_inl(port); - else if (CHECK_SH7751_PCIIO(port)) - return ctrl_inl(PCI_IOMAP(port)); + else if (is_pci_ioaddr(port)) + return ctrl_inl(pci_ioaddr(port)); else maybebadio(port); @@ -139,8 +105,8 @@ void landisk_outb(u8 value, unsigned long port) { if (PXSEG(port)) ctrl_outb(value, port); - else if (CHECK_SH7751_PCIIO(port)) - ctrl_outb(value, PCI_IOMAP(port)); + else if (is_pci_ioaddr(port)) + ctrl_outb(value, pci_ioaddr(port)); else ctrl_outw(value, port2adr(port)); } @@ -149,19 +115,19 @@ void landisk_outb_p(u8 value, unsigned long port) { if (PXSEG(port)) ctrl_outb(value, port); - else if (CHECK_SH7751_PCIIO(port)) - ctrl_outb(value, PCI_IOMAP(port)); + else if (is_pci_ioaddr(port)) + ctrl_outb(value, pci_ioaddr(port)); else ctrl_outw(value, port2adr(port)); - delay(); + ctrl_delay(); } void landisk_outw(u16 value, unsigned long port) { if (PXSEG(port)) ctrl_outw(value, port); - else if (CHECK_SH7751_PCIIO(port)) - ctrl_outw(value, PCI_IOMAP(port)); + else if (is_pci_ioaddr(port)) + ctrl_outw(value, pci_ioaddr(port)); else maybebadio(port); } @@ -170,8 +136,8 @@ void landisk_outl(u32 value, unsigned long port) { if (PXSEG(port)) ctrl_outl(value, port); - else if (CHECK_SH7751_PCIIO(port)) - ctrl_outl(value, PCI_IOMAP(port)); + else if (is_pci_ioaddr(port)) + ctrl_outl(value, pci_ioaddr(port)); else maybebadio(port); } @@ -184,8 +150,8 @@ void landisk_insb(unsigned long port, void *dst, unsigned long count) if (PXSEG(port)) { while (count--) *buf++ = *(volatile u8 *)port; - } else if (CHECK_SH7751_PCIIO(port)) { - volatile u8 *bp = (volatile u8 *)PCI_IOMAP(port); + } else if (is_pci_ioaddr(port)) { + volatile u8 *bp = (volatile u8 *)pci_ioaddr(port); while (count--) *buf++ = *bp; @@ -203,8 +169,8 @@ void landisk_insw(unsigned long port, void *dst, unsigned long count) if (PXSEG(port)) p = (volatile u16 *)port; - else if (CHECK_SH7751_PCIIO(port)) - p = (volatile u16 *)PCI_IOMAP(port); + else if (is_pci_ioaddr(port)) + p = (volatile u16 *)pci_ioaddr(port); else p = (volatile u16 *)port2adr(port); while (count--) @@ -215,8 +181,8 @@ void landisk_insl(unsigned long port, void *dst, unsigned long count) { u32 *buf = dst; - if (CHECK_SH7751_PCIIO(port)) { - volatile u32 *p = (volatile u32 *)PCI_IOMAP(port); + if (is_pci_ioaddr(port)) { + volatile u32 *p = (volatile u32 *)pci_ioaddr(port); while (count--) *buf++ = *p; @@ -232,8 +198,8 @@ void landisk_outsb(unsigned long port, const void *src, unsigned long count) if (PXSEG(port)) while (count--) ctrl_outb(*buf++, port); - else if (CHECK_SH7751_PCIIO(port)) { - volatile u8 *bp = (volatile u8 *)PCI_IOMAP(port); + else if (is_pci_ioaddr(port)) { + volatile u8 *bp = (volatile u8 *)pci_ioaddr(port); while (count--) *bp = *buf++; @@ -251,8 +217,8 @@ void landisk_outsw(unsigned long port, const void *src, unsigned long count) if (PXSEG(port)) p = (volatile u16 *)port; - else if (CHECK_SH7751_PCIIO(port)) - p = (volatile u16 *)PCI_IOMAP(port); + else if (is_pci_ioaddr(port)) + p = (volatile u16 *)pci_ioaddr(port); else p = (volatile u16 *)port2adr(port); @@ -264,8 +230,8 @@ void landisk_outsl(unsigned long port, const void *src, unsigned long count) { const u32 *buf = src; - if (CHECK_SH7751_PCIIO(port)) { - volatile u32 *p = (volatile u32 *)PCI_IOMAP(port); + if (is_pci_ioaddr(port)) { + volatile u32 *p = (volatile u32 *)pci_ioaddr(port); while (count--) *p = *buf++; @@ -277,8 +243,8 @@ void __iomem *landisk_ioport_map(unsigned long port, unsigned int size) { if (PXSEG(port)) return (void __iomem *)port; - else if (CHECK_SH7751_PCIIO(port)) - return (void __iomem *)PCI_IOMAP(port); + else if (is_pci_ioaddr(port)) + return (void __iomem *)pci_ioaddr(port); return (void __iomem *)port2adr(port); } diff --git a/arch/sh/boards/mpc1211/setup.c b/arch/sh/boards/mpc1211/setup.c index 2bfb221cc35c..a8c5180ae219 100644 --- a/arch/sh/boards/mpc1211/setup.c +++ b/arch/sh/boards/mpc1211/setup.c @@ -255,23 +255,12 @@ void __init init_mpc1211_IRQ(void) } } -/* - Initialize the board -*/ - - -static void delay (void) -{ - volatile unsigned short tmp; - tmp = *(volatile unsigned short *) 0xa0000000; -} - -static void delay1000 (void) +static void delay1000(void) { int i; for (i=0; i<1000; i++) - delay (); + ctrl_delay(); } static int put_smb_blk(unsigned char *p, int address, int command, int no) diff --git a/arch/sh/boards/renesas/hs7751rvoip/io.c b/arch/sh/boards/renesas/hs7751rvoip/io.c index ecdce7ef6a34..8c26550ca2e4 100644 --- a/arch/sh/boards/renesas/hs7751rvoip/io.c +++ b/arch/sh/boards/renesas/hs7751rvoip/io.c @@ -13,14 +13,11 @@ #include #include +#include #include #include #include -#include -#include -#include "../../../drivers/pci/pci-sh7751.h" - extern void *area6_io8_base; /* Area 6 8bit I/O Base address */ extern void *area5_io16_base; /* Area 5 16bit I/O Base address */ @@ -31,27 +28,17 @@ extern void *area5_io16_base; /* Area 5 16bit I/O Base address */ * like the other Solution Engine boards. */ -#define PCIIOBR (volatile long *)PCI_REG(SH7751_PCIIOBR) -#define PCIMBR (volatile long *)PCI_REG(SH7751_PCIMBR) -#define PCI_IO_AREA SH7751_PCI_IO_BASE -#define PCI_MEM_AREA SH7751_PCI_CONFIG_BASE -#define PCI_IOMAP(adr) (PCI_IO_AREA + (adr & ~SH7751_PCIIOBR_MASK)) - #define CODEC_IO_BASE 0x1000 #define CODEC_IOMAP(a) ((unsigned long)area6_io8_base + ((a) - CODEC_IO_BASE)) -static inline void delay(void) -{ - ctrl_inw(0xa0000000); -} - static inline unsigned long port2adr(unsigned int port) { if ((0x1f0 <= port && port < 0x1f8) || port == 0x3f6) if (port == 0x3f6) return ((unsigned long)area5_io16_base + 0x0c); else - return ((unsigned long)area5_io16_base + 0x800 + ((port-0x1f0) << 1)); + return ((unsigned long)area5_io16_base + 0x800 + + ((port-0x1f0) << 1)); else maybebadio((unsigned long)port); return port; @@ -70,25 +57,10 @@ static inline int shifted_port(unsigned long port) } #if defined(CONFIG_HS7751RVOIP_CODEC) -static inline int -codec_port(unsigned long port) -{ - if (CODEC_IO_BASE <= port && port < (CODEC_IO_BASE+0x20)) - return 1; - else - return 0; -} -#endif - -/* In case someone configures the kernel w/o PCI support: in that */ -/* scenario, don't ever bother to check for PCI-window addresses */ - -/* NOTE: WINDOW CHECK MAY BE A BIT OFF, HIGH PCIBIOS_MIN_IO WRAPS? */ -#if defined(CONFIG_PCI) -#define CHECK_SH7751_PCIIO(port) \ - ((port >= PCIBIOS_MIN_IO) && (port < (PCIBIOS_MIN_IO + SH7751_PCI_IO_SIZE))) +#define codec_port(port) \ + ((CODEC_IO_BASE <= (port)) && ((port) < (CODEC_IO_BASE + 0x20))) #else -#define CHECK_SH7751_PCIIO(port) (0) +#define codec_port(port) (0) #endif /* @@ -102,12 +74,10 @@ unsigned char hs7751rvoip_inb(unsigned long port) { if (PXSEG(port)) return ctrl_inb(port); -#if defined(CONFIG_HS7751RVOIP_CODEC) else if (codec_port(port)) return ctrl_inb(CODEC_IOMAP(port)); -#endif - else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) - return ctrl_inb(PCI_IOMAP(port)); + else if (is_pci_ioaddr(port) || shifted_port(port)) + return ctrl_inb(pci_ioaddr(port)); else return ctrl_inw(port2adr(port)) & 0xff; } @@ -118,15 +88,13 @@ unsigned char hs7751rvoip_inb_p(unsigned long port) if (PXSEG(port)) v = ctrl_inb(port); -#if defined(CONFIG_HS7751RVOIP_CODEC) else if (codec_port(port)) v = ctrl_inb(CODEC_IOMAP(port)); -#endif - else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) - v = ctrl_inb(PCI_IOMAP(port)); + else if (is_pci_ioaddr(port) || shifted_port(port)) + v = ctrl_inb(pci_ioaddr(port)); else v = ctrl_inw(port2adr(port)) & 0xff; - delay(); + ctrl_delay(); return v; } @@ -134,8 +102,8 @@ unsigned short hs7751rvoip_inw(unsigned long port) { if (PXSEG(port)) return ctrl_inw(port); - else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) - return ctrl_inw(PCI_IOMAP(port)); + else if (is_pci_ioaddr(port) || shifted_port(port)) + return ctrl_inw(pci_ioaddr(port)); else maybebadio(port); return 0; @@ -145,8 +113,8 @@ unsigned int hs7751rvoip_inl(unsigned long port) { if (PXSEG(port)) return ctrl_inl(port); - else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) - return ctrl_inl(PCI_IOMAP(port)); + else if (is_pci_ioaddr(port) || shifted_port(port)) + return ctrl_inl(pci_ioaddr(port)); else maybebadio(port); return 0; @@ -157,12 +125,10 @@ void hs7751rvoip_outb(unsigned char value, unsigned long port) if (PXSEG(port)) ctrl_outb(value, port); -#if defined(CONFIG_HS7751RVOIP_CODEC) else if (codec_port(port)) ctrl_outb(value, CODEC_IOMAP(port)); -#endif - else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) - ctrl_outb(value, PCI_IOMAP(port)); + else if (is_pci_ioaddr(port) || shifted_port(port)) + ctrl_outb(value, pci_ioaddr(port)); else ctrl_outb(value, port2adr(port)); } @@ -171,24 +137,22 @@ void hs7751rvoip_outb_p(unsigned char value, unsigned long port) { if (PXSEG(port)) ctrl_outb(value, port); -#if defined(CONFIG_HS7751RVOIP_CODEC) else if (codec_port(port)) ctrl_outb(value, CODEC_IOMAP(port)); -#endif - else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) - ctrl_outb(value, PCI_IOMAP(port)); + else if (is_pci_ioaddr(port) || shifted_port(port)) + ctrl_outb(value, pci_ioaddr(port)); else ctrl_outw(value, port2adr(port)); - delay(); + ctrl_delay(); } void hs7751rvoip_outw(unsigned short value, unsigned long port) { if (PXSEG(port)) ctrl_outw(value, port); - else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) - ctrl_outw(value, PCI_IOMAP(port)); + else if (is_pci_ioaddr(port) || shifted_port(port)) + ctrl_outw(value, pci_ioaddr(port)); else maybebadio(port); } @@ -197,8 +161,8 @@ void hs7751rvoip_outl(unsigned int value, unsigned long port) { if (PXSEG(port)) ctrl_outl(value, port); - else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) - ctrl_outl(value, PCI_IOMAP(port)); + else if (is_pci_ioaddr(port) || shifted_port(port)) + ctrl_outl(value, pci_ioaddr(port)); else maybebadio(port); } @@ -210,13 +174,11 @@ void hs7751rvoip_insb(unsigned long port, void *addr, unsigned long count) if (PXSEG(port)) while (count--) *buf++ = ctrl_inb(port); -#if defined(CONFIG_HS7751RVOIP_CODEC) else if (codec_port(port)) while (count--) *buf++ = ctrl_inb(CODEC_IOMAP(port)); -#endif - else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) { - volatile u8 *bp = (volatile u8 *)PCI_IOMAP(port); + else if (is_pci_ioaddr(port) || shifted_port(port)) { + volatile u8 *bp = (volatile u8 *)pci_ioaddr(port); while (count--) *buf++ = *bp; @@ -235,8 +197,8 @@ void hs7751rvoip_insw(unsigned long port, void *addr, unsigned long count) if (PXSEG(port)) p = (volatile u16 *)port; - else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) - p = (volatile u16 *)PCI_IOMAP(port); + else if (is_pci_ioaddr(port) || shifted_port(port)) + p = (volatile u16 *)pci_ioaddr(port); else p = (volatile u16 *)port2adr(port); while (count--) @@ -246,8 +208,8 @@ void hs7751rvoip_insw(unsigned long port, void *addr, unsigned long count) void hs7751rvoip_insl(unsigned long port, void *addr, unsigned long count) { - if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) { - volatile u32 *p = (volatile u32 *)PCI_IOMAP(port); + if (is_pci_ioaddr(port) || shifted_port(port)) { + volatile u32 *p = (volatile u32 *)pci_ioaddr(port); u32 *buf = addr; while (count--) @@ -263,13 +225,11 @@ void hs7751rvoip_outsb(unsigned long port, const void *addr, unsigned long count if (PXSEG(port)) while (count--) ctrl_outb(*buf++, port); -#if defined(CONFIG_HS7751RVOIP_CODEC) else if (codec_port(port)) while (count--) ctrl_outb(*buf++, CODEC_IOMAP(port)); -#endif - else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) { - volatile u8 *bp = (volatile u8 *)PCI_IOMAP(port); + else if (is_pci_ioaddr(port) || shifted_port(port)) { + volatile u8 *bp = (volatile u8 *)pci_ioaddr(port); while (count--) *bp = *buf++; @@ -288,8 +248,8 @@ void hs7751rvoip_outsw(unsigned long port, const void *addr, unsigned long count if (PXSEG(port)) p = (volatile u16 *)port; - else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) - p = (volatile u16 *)PCI_IOMAP(port); + else if (is_pci_ioaddr(port) || shifted_port(port)) + p = (volatile u16 *)pci_ioaddr(port); else p = (volatile u16 *)port2adr(port); @@ -301,8 +261,8 @@ void hs7751rvoip_outsl(unsigned long port, const void *addr, unsigned long count { const u32 *buf = addr; - if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) { - volatile u32 *p = (volatile u32 *)PCI_IOMAP(port); + if (is_pci_ioaddr(port) || shifted_port(port)) { + volatile u32 *p = (volatile u32 *)pci_ioaddr(port); while (count--) *p = *buf++; @@ -316,8 +276,8 @@ void __iomem *hs7751rvoip_ioport_map(unsigned long port, unsigned int size) return (void __iomem *)port; else if (unlikely(codec_port(port) && (size == 1))) return (void __iomem *)CODEC_IOMAP(port); - else if (CHECK_SH7751_PCIIO(port)) - return (void __iomem *)PCI_IOMAP(port); + else if (is_pci_ioaddr(port)) + return (void __iomem *)pci_ioaddr(port); return (void __iomem *)port2adr(port); } diff --git a/arch/sh/boards/renesas/r7780rp/io.c b/arch/sh/boards/renesas/r7780rp/io.c index f73ca3f0f5a1..db92d6e6ae99 100644 --- a/arch/sh/boards/renesas/r7780rp/io.c +++ b/arch/sh/boards/renesas/r7780rp/io.c @@ -1,6 +1,4 @@ /* - * linux/arch/sh/kernel/io_r7780rp.c - * * Copyright (C) 2001 Ian da Silva, Jeremy Siegel * Based largely on io_se.c. * @@ -10,37 +8,13 @@ * placeholder code from io_r7780rp.c left in with the * expectation of later SuperIO and PCMCIA access. */ - +#include #include #include #include #include #include -#include -#include -#include "../../../drivers/pci/pci-sh7780.h" - -/* - * The 7780 R7780RP-1 uses the built-in PCI controller (PCIC) - * of the 7780 processor, and has a SuperIO accessible via the PCI. - * The board also includes a PCMCIA controller on its memory bus, - * like the other Solution Engine boards. - */ - -#define SH7780_PCIIOBR_MASK 0xFFFC0000 /* IO Space Mask */ -#define PCIIOBR (volatile long *)PCI_REG(SH7780_PCIIOBR) -#define PCIMBR (volatile long *)PCI_REG(SH7780_PCIMBR) -#define PCI_IO_AREA SH7780_PCI_IO_BASE -#define PCI_MEM_AREA SH7780_PCI_CONFIG_BASE - -#define PCI_IOMAP(adr) (PCI_IO_AREA + (adr & ~SH7780_PCIIOBR_MASK)) - -static inline void delay(void) -{ - ctrl_inw(0xa0000000); -} - static inline unsigned long port2adr(unsigned int port) { if ((0x1f0 <= port && port < 0x1f8) || port == 0x3f6) @@ -78,17 +52,6 @@ static inline int shifted_port(unsigned long port) return 1; } -/* In case someone configures the kernel w/o PCI support: in that */ -/* scenario, don't ever bother to check for PCI-window addresses */ - -/* NOTE: WINDOW CHECK MAY BE A BIT OFF, HIGH PCIBIOS_MIN_IO WRAPS? */ -#if defined(CONFIG_PCI) -#define CHECK_SH7780_PCIIO(port) \ - ((port >= PCIBIOS_MIN_IO) && (port < (PCIBIOS_MIN_IO + SH7780_PCI_IO_SIZE))) -#else -#define CHECK_SH7780_PCIIO(port) (0) -#endif - #if defined(CONFIG_NE2000) || defined(CONFIG_NE2000_MODULE) #define CHECK_AX88796L_PORT(port) \ ((port >= AX88796L_IO_BASE) && (port < (AX88796L_IO_BASE+0x20))) @@ -109,8 +72,8 @@ u8 r7780rp_inb(unsigned long port) return ctrl_inw(port88796l(port, 0)) & 0xff; else if (PXSEG(port)) return ctrl_inb(port); - else if (CHECK_SH7780_PCIIO(port) || shifted_port(port)) - return ctrl_inb(PCI_IOMAP(port)); + else if (is_pci_ioaddr(port) || shifted_port(port)) + return ctrl_inb(pci_ioaddr(port)); return ctrl_inw(port2adr(port)) & 0xff; } @@ -123,12 +86,12 @@ u8 r7780rp_inb_p(unsigned long port) v = ctrl_inw(port88796l(port, 0)) & 0xff; else if (PXSEG(port)) v = ctrl_inb(port); - else if (CHECK_SH7780_PCIIO(port) || shifted_port(port)) - v = ctrl_inb(PCI_IOMAP(port)); + else if (is_pci_ioaddr(port) || shifted_port(port)) + v = ctrl_inb(pci_ioaddr(port)); else v = ctrl_inw(port2adr(port)) & 0xff; - delay(); + ctrl_delay(); return v; } @@ -139,8 +102,8 @@ u16 r7780rp_inw(unsigned long port) maybebadio(port); else if (PXSEG(port)) return ctrl_inw(port); - else if (CHECK_SH7780_PCIIO(port) || shifted_port(port)) - return ctrl_inw(PCI_IOMAP(port)); + else if (is_pci_ioaddr(port) || shifted_port(port)) + return ctrl_inw(pci_ioaddr(port)); else maybebadio(port); @@ -153,8 +116,8 @@ u32 r7780rp_inl(unsigned long port) maybebadio(port); else if (PXSEG(port)) return ctrl_inl(port); - else if (CHECK_SH7780_PCIIO(port) || shifted_port(port)) - return ctrl_inl(PCI_IOMAP(port)); + else if (is_pci_ioaddr(port) || shifted_port(port)) + return ctrl_inl(pci_ioaddr(port)); else maybebadio(port); @@ -167,8 +130,8 @@ void r7780rp_outb(u8 value, unsigned long port) ctrl_outw(value, port88796l(port, 0)); else if (PXSEG(port)) ctrl_outb(value, port); - else if (CHECK_SH7780_PCIIO(port) || shifted_port(port)) - ctrl_outb(value, PCI_IOMAP(port)); + else if (is_pci_ioaddr(port) || shifted_port(port)) + ctrl_outb(value, pci_ioaddr(port)); else ctrl_outw(value, port2adr(port)); } @@ -179,12 +142,12 @@ void r7780rp_outb_p(u8 value, unsigned long port) ctrl_outw(value, port88796l(port, 0)); else if (PXSEG(port)) ctrl_outb(value, port); - else if (CHECK_SH7780_PCIIO(port) || shifted_port(port)) - ctrl_outb(value, PCI_IOMAP(port)); + else if (is_pci_ioaddr(port) || shifted_port(port)) + ctrl_outb(value, pci_ioaddr(port)); else ctrl_outw(value, port2adr(port)); - delay(); + ctrl_delay(); } void r7780rp_outw(u16 value, unsigned long port) @@ -193,8 +156,8 @@ void r7780rp_outw(u16 value, unsigned long port) maybebadio(port); else if (PXSEG(port)) ctrl_outw(value, port); - else if (CHECK_SH7780_PCIIO(port) || shifted_port(port)) - ctrl_outw(value, PCI_IOMAP(port)); + else if (is_pci_ioaddr(port) || shifted_port(port)) + ctrl_outw(value, pci_ioaddr(port)); else maybebadio(port); } @@ -205,8 +168,8 @@ void r7780rp_outl(u32 value, unsigned long port) maybebadio(port); else if (PXSEG(port)) ctrl_outl(value, port); - else if (CHECK_SH7780_PCIIO(port) || shifted_port(port)) - ctrl_outl(value, PCI_IOMAP(port)); + else if (is_pci_ioaddr(port) || shifted_port(port)) + ctrl_outl(value, pci_ioaddr(port)); else maybebadio(port); } @@ -223,8 +186,8 @@ void r7780rp_insb(unsigned long port, void *dst, unsigned long count) } else if (PXSEG(port)) { while (count--) *buf++ = *(volatile u8 *)port; - } else if (CHECK_SH7780_PCIIO(port) || shifted_port(port)) { - volatile u8 *bp = (volatile u8 *)PCI_IOMAP(port); + } else if (is_pci_ioaddr(port) || shifted_port(port)) { + volatile u8 *bp = (volatile u8 *)pci_ioaddr(port); while (count--) *buf++ = *bp; @@ -244,8 +207,8 @@ void r7780rp_insw(unsigned long port, void *dst, unsigned long count) p = (volatile u16 *)port88796l(port, 1); else if (PXSEG(port)) p = (volatile u16 *)port; - else if (CHECK_SH7780_PCIIO(port) || shifted_port(port)) - p = (volatile u16 *)PCI_IOMAP(port); + else if (is_pci_ioaddr(port) || shifted_port(port)) + p = (volatile u16 *)pci_ioaddr(port); else p = (volatile u16 *)port2adr(port); @@ -259,8 +222,8 @@ void r7780rp_insl(unsigned long port, void *dst, unsigned long count) if (CHECK_AX88796L_PORT(port)) maybebadio(port); - else if (CHECK_SH7780_PCIIO(port) || shifted_port(port)) { - volatile u32 *p = (volatile u32 *)PCI_IOMAP(port); + else if (is_pci_ioaddr(port) || shifted_port(port)) { + volatile u32 *p = (volatile u32 *)pci_ioaddr(port); while (count--) *buf++ = *p; @@ -280,8 +243,8 @@ void r7780rp_outsb(unsigned long port, const void *src, unsigned long count) } else if (PXSEG(port)) while (count--) ctrl_outb(*buf++, port); - else if (CHECK_SH7780_PCIIO(port) || shifted_port(port)) { - volatile u8 *bp = (volatile u8 *)PCI_IOMAP(port); + else if (is_pci_ioaddr(port) || shifted_port(port)) { + volatile u8 *bp = (volatile u8 *)pci_ioaddr(port); while (count--) *bp = *buf++; @@ -301,8 +264,8 @@ void r7780rp_outsw(unsigned long port, const void *src, unsigned long count) p = (volatile u16 *)port88796l(port, 1); else if (PXSEG(port)) p = (volatile u16 *)port; - else if (CHECK_SH7780_PCIIO(port) || shifted_port(port)) - p = (volatile u16 *)PCI_IOMAP(port); + else if (is_pci_ioaddr(port) || shifted_port(port)) + p = (volatile u16 *)pci_ioaddr(port); else p = (volatile u16 *)port2adr(port); @@ -316,8 +279,8 @@ void r7780rp_outsl(unsigned long port, const void *src, unsigned long count) if (CHECK_AX88796L_PORT(port)) maybebadio(port); - else if (CHECK_SH7780_PCIIO(port) || shifted_port(port)) { - volatile u32 *p = (volatile u32 *)PCI_IOMAP(port); + else if (is_pci_ioaddr(port) || shifted_port(port)) { + volatile u32 *p = (volatile u32 *)pci_ioaddr(port); while (count--) *p = *buf++; @@ -331,8 +294,8 @@ void __iomem *r7780rp_ioport_map(unsigned long port, unsigned int size) return (void __iomem *)port88796l(port, size > 1); else if (PXSEG(port)) return (void __iomem *)port; - else if (CHECK_SH7780_PCIIO(port) || shifted_port(port)) - return (void __iomem *)PCI_IOMAP(port); + else if (is_pci_ioaddr(port) || shifted_port(port)) + return (void __iomem *)pci_ioaddr(port); return (void __iomem *)port2adr(port); } diff --git a/arch/sh/boards/renesas/rts7751r2d/io.c b/arch/sh/boards/renesas/rts7751r2d/io.c index 8dc2a2e2e5df..135aa0b5e62d 100644 --- a/arch/sh/boards/renesas/rts7751r2d/io.c +++ b/arch/sh/boards/renesas/rts7751r2d/io.c @@ -1,6 +1,4 @@ /* - * linux/arch/sh/kernel/io_rts7751r2d.c - * * Copyright (C) 2001 Ian da Silva, Jeremy Siegel * Based largely on io_se.c. * @@ -10,11 +8,9 @@ * placeholder code from io_rts7751r2d.c left in with the * expectation of later SuperIO and PCMCIA access. */ - #include #include #include -#include "../../../drivers/pci/pci-sh7751.h" #include #include #include @@ -26,18 +22,6 @@ * like the other Solution Engine boards. */ -#define PCIIOBR (volatile long *)PCI_REG(SH7751_PCIIOBR) -#define PCIMBR (volatile long *)PCI_REG(SH7751_PCIMBR) -#define PCI_IO_AREA SH7751_PCI_IO_BASE -#define PCI_MEM_AREA SH7751_PCI_CONFIG_BASE - -#define PCI_IOMAP(adr) (PCI_IO_AREA + (adr & ~SH7751_PCIIOBR_MASK)) - -static inline void delay(void) -{ - ctrl_inw(0xa0000000); -} - static inline unsigned long port2adr(unsigned int port) { if ((0x1f0 <= port && port < 0x1f8) || port == 0x3f6) @@ -75,17 +59,6 @@ static inline int shifted_port(unsigned long port) return 1; } -/* In case someone configures the kernel w/o PCI support: in that */ -/* scenario, don't ever bother to check for PCI-window addresses */ - -/* NOTE: WINDOW CHECK MAY BE A BIT OFF, HIGH PCIBIOS_MIN_IO WRAPS? */ -#if defined(CONFIG_PCI) -#define CHECK_SH7751_PCIIO(port) \ - ((port >= PCIBIOS_MIN_IO) && (port < (PCIBIOS_MIN_IO + SH7751_PCI_IO_SIZE))) -#else -#define CHECK_SH7751_PCIIO(port) (0) -#endif - #if defined(CONFIG_NE2000) || defined(CONFIG_NE2000_MODULE) #define CHECK_AX88796L_PORT(port) \ ((port >= AX88796L_IO_BASE) && (port < (AX88796L_IO_BASE+0x20))) @@ -106,8 +79,8 @@ unsigned char rts7751r2d_inb(unsigned long port) return (*(volatile unsigned short *)port88796l(port, 0)) & 0xff; else if (PXSEG(port)) return *(volatile unsigned char *)port; - else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) - return *(volatile unsigned char *)PCI_IOMAP(port); + else if (is_pci_ioaddr(port) || shifted_port(port)) + return *(volatile unsigned char *)pci_ioaddr(port); else return (*(volatile unsigned short *)port2adr(port) & 0xff); } @@ -120,11 +93,12 @@ unsigned char rts7751r2d_inb_p(unsigned long port) v = (*(volatile unsigned short *)port88796l(port, 0)) & 0xff; else if (PXSEG(port)) v = *(volatile unsigned char *)port; - else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) - v = *(volatile unsigned char *)PCI_IOMAP(port); + else if (is_pci_ioaddr(port) || shifted_port(port)) + v = *(volatile unsigned char *)pci_ioaddr(port); else v = (*(volatile unsigned short *)port2adr(port) & 0xff); - delay(); + + ctrl_delay(); return v; } @@ -135,8 +109,8 @@ unsigned short rts7751r2d_inw(unsigned long port) maybebadio(port); else if (PXSEG(port)) return *(volatile unsigned short *)port; - else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) - return *(volatile unsigned short *)PCI_IOMAP(port); + else if (is_pci_ioaddr(port) || shifted_port(port)) + return *(volatile unsigned short *)pci_ioaddr(port); else maybebadio(port); @@ -149,8 +123,8 @@ unsigned int rts7751r2d_inl(unsigned long port) maybebadio(port); else if (PXSEG(port)) return *(volatile unsigned long *)port; - else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) - return *(volatile unsigned long *)PCI_IOMAP(port); + else if (is_pci_ioaddr(port) || shifted_port(port)) + return *(volatile unsigned long *)pci_ioaddr(port); else maybebadio(port); @@ -163,8 +137,8 @@ void rts7751r2d_outb(unsigned char value, unsigned long port) *((volatile unsigned short *)port88796l(port, 0)) = value; else if (PXSEG(port)) *(volatile unsigned char *)port = value; - else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) - *(volatile unsigned char *)PCI_IOMAP(port) = value; + else if (is_pci_ioaddr(port) || shifted_port(port)) + *(volatile unsigned char *)pci_ioaddr(port) = value; else *(volatile unsigned short *)port2adr(port) = value; } @@ -175,11 +149,12 @@ void rts7751r2d_outb_p(unsigned char value, unsigned long port) *((volatile unsigned short *)port88796l(port, 0)) = value; else if (PXSEG(port)) *(volatile unsigned char *)port = value; - else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) - *(volatile unsigned char *)PCI_IOMAP(port) = value; + else if (is_pci_ioaddr(port) || shifted_port(port)) + *(volatile unsigned char *)pci_ioaddr(port) = value; else *(volatile unsigned short *)port2adr(port) = value; - delay(); + + ctrl_delay(); } void rts7751r2d_outw(unsigned short value, unsigned long port) @@ -188,8 +163,8 @@ void rts7751r2d_outw(unsigned short value, unsigned long port) maybebadio(port); else if (PXSEG(port)) *(volatile unsigned short *)port = value; - else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) - *(volatile unsigned short *)PCI_IOMAP(port) = value; + else if (is_pci_ioaddr(port) || shifted_port(port)) + *(volatile unsigned short *)pci_ioaddr(port) = value; else maybebadio(port); } @@ -200,8 +175,8 @@ void rts7751r2d_outl(unsigned int value, unsigned long port) maybebadio(port); else if (PXSEG(port)) *(volatile unsigned long *)port = value; - else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) - *(volatile unsigned long *)PCI_IOMAP(port) = value; + else if (is_pci_ioaddr(port) || shifted_port(port)) + *(volatile unsigned long *)pci_ioaddr(port) = value; else maybebadio(port); } @@ -219,8 +194,8 @@ void rts7751r2d_insb(unsigned long port, void *addr, unsigned long count) } else if (PXSEG(port)) while (count--) ctrl_outb(ctrl_inb(port), a++); - else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) { - bp = (__u8 *)PCI_IOMAP(port); + else if (is_pci_ioaddr(port) || shifted_port(port)) { + bp = (__u8 *)pci_ioaddr(port); while (count--) ctrl_outb(*bp, a++); } else { @@ -239,8 +214,8 @@ void rts7751r2d_insw(unsigned long port, void *addr, unsigned long count) p = (volatile unsigned short *)port88796l(port, 1); else if (PXSEG(port)) p = (volatile unsigned short *)port; - else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) - p = (volatile unsigned short *)PCI_IOMAP(port); + else if (is_pci_ioaddr(port) || shifted_port(port)) + p = (volatile unsigned short *)pci_ioaddr(port); else p = (volatile unsigned short *)port2adr(port); while (count--) @@ -251,11 +226,11 @@ void rts7751r2d_insl(unsigned long port, void *addr, unsigned long count) { if (CHECK_AX88796L_PORT(port)) maybebadio(port); - else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) { + else if (is_pci_ioaddr(port) || shifted_port(port)) { unsigned long a = (unsigned long)addr; while (count--) { - ctrl_outl(ctrl_inl(PCI_IOMAP(port)), a); + ctrl_outl(ctrl_inl(pci_ioaddr(port)), a); a += 4; } } else @@ -275,8 +250,8 @@ void rts7751r2d_outsb(unsigned long port, const void *addr, unsigned long count) } else if (PXSEG(port)) while (count--) ctrl_outb(a++, port); - else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) { - bp = (__u8 *)PCI_IOMAP(port); + else if (is_pci_ioaddr(port) || shifted_port(port)) { + bp = (__u8 *)pci_ioaddr(port); while (count--) *bp = ctrl_inb(a++); } else { @@ -295,8 +270,8 @@ void rts7751r2d_outsw(unsigned long port, const void *addr, unsigned long count) p = (volatile unsigned short *)port88796l(port, 1); else if (PXSEG(port)) p = (volatile unsigned short *)port; - else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) - p = (volatile unsigned short *)PCI_IOMAP(port); + else if (is_pci_ioaddr(port) || shifted_port(port)) + p = (volatile unsigned short *)pci_ioaddr(port); else p = (volatile unsigned short *)port2adr(port); @@ -310,11 +285,11 @@ void rts7751r2d_outsl(unsigned long port, const void *addr, unsigned long count) { if (CHECK_AX88796L_PORT(port)) maybebadio(port); - else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) { + else if (is_pci_ioaddr(port) || shifted_port(port)) { unsigned long a = (unsigned long)addr; while (count--) { - ctrl_outl(ctrl_inl(a), PCI_IOMAP(port)); + ctrl_outl(ctrl_inl(a), pci_ioaddr(port)); a += 4; } } else diff --git a/arch/sh/boards/renesas/systemh/io.c b/arch/sh/boards/renesas/systemh/io.c index 0befd4f9894c..cde6e5d192c4 100644 --- a/arch/sh/boards/renesas/systemh/io.c +++ b/arch/sh/boards/renesas/systemh/io.c @@ -5,36 +5,16 @@ * Based largely on io_se.c. * * I/O routine for Hitachi 7751 Systemh. - * */ - #include #include #include #include #include #include -#include "../../../drivers/pci/pci-sh7751.h" - -/* - * The 7751 SystemH Engine uses the built-in PCI controller (PCIC) - * of the 7751 processor, and has a SuperIO accessible on its memory - * bus. - */ - -#define PCIIOBR (volatile long *)PCI_REG(SH7751_PCIIOBR) -#define PCIMBR (volatile long *)PCI_REG(SH7751_PCIMBR) -#define PCI_IO_AREA SH7751_PCI_IO_BASE -#define PCI_MEM_AREA SH7751_PCI_CONFIG_BASE -#define PCI_IOMAP(adr) (PCI_IO_AREA + (adr & ~SH7751_PCIIOBR_MASK)) #define ETHER_IOMAP(adr) (0xB3000000 + (adr)) /*map to 16bits access area of smc lan chip*/ -static inline void delay(void) -{ - ctrl_inw(0xa0000000); -} - static inline volatile __u16 * port2adr(unsigned int port) { @@ -44,17 +24,6 @@ port2adr(unsigned int port) return (volatile __u16*)port; } -/* In case someone configures the kernel w/o PCI support: in that */ -/* scenario, don't ever bother to check for PCI-window addresses */ - -/* NOTE: WINDOW CHECK MAY BE A BIT OFF, HIGH PCIBIOS_MIN_IO WRAPS? */ -#if defined(CONFIG_PCI) -#define CHECK_SH7751_PCIIO(port) \ - ((port >= PCIBIOS_MIN_IO) && (port < (PCIBIOS_MIN_IO + SH7751_PCI_IO_SIZE))) -#else -#define CHECK_SH7751_PCIIO(port) (0) -#endif - /* * General outline: remap really low stuff [eventually] to SuperIO, * stuff in PCI IO space (at or above window at pci.h:PCIBIOS_MIN_IO) @@ -66,8 +35,8 @@ unsigned char sh7751systemh_inb(unsigned long port) { if (PXSEG(port)) return *(volatile unsigned char *)port; - else if (CHECK_SH7751_PCIIO(port)) - return *(volatile unsigned char *)PCI_IOMAP(port); + else if (is_pci_ioaddr(port)) + return *(volatile unsigned char *)pci_ioaddr(port); else if (port <= 0x3F1) return *(volatile unsigned char *)ETHER_IOMAP(port); else @@ -80,13 +49,13 @@ unsigned char sh7751systemh_inb_p(unsigned long port) if (PXSEG(port)) v = *(volatile unsigned char *)port; - else if (CHECK_SH7751_PCIIO(port)) - v = *(volatile unsigned char *)PCI_IOMAP(port); + else if (is_pci_ioaddr(port)) + v = *(volatile unsigned char *)pci_ioaddr(port); else if (port <= 0x3F1) v = *(volatile unsigned char *)ETHER_IOMAP(port); else v = (*port2adr(port))&0xff; - delay(); + ctrl_delay(); return v; } @@ -94,8 +63,8 @@ unsigned short sh7751systemh_inw(unsigned long port) { if (PXSEG(port)) return *(volatile unsigned short *)port; - else if (CHECK_SH7751_PCIIO(port)) - return *(volatile unsigned short *)PCI_IOMAP(port); + else if (is_pci_ioaddr(port)) + return *(volatile unsigned short *)pci_ioaddr(port); else if (port >= 0x2000) return *port2adr(port); else if (port <= 0x3F1) @@ -109,8 +78,8 @@ unsigned int sh7751systemh_inl(unsigned long port) { if (PXSEG(port)) return *(volatile unsigned long *)port; - else if (CHECK_SH7751_PCIIO(port)) - return *(volatile unsigned int *)PCI_IOMAP(port); + else if (is_pci_ioaddr(port)) + return *(volatile unsigned int *)pci_ioaddr(port); else if (port >= 0x2000) return *port2adr(port); else if (port <= 0x3F1) @@ -125,8 +94,8 @@ void sh7751systemh_outb(unsigned char value, unsigned long port) if (PXSEG(port)) *(volatile unsigned char *)port = value; - else if (CHECK_SH7751_PCIIO(port)) - *((unsigned char*)PCI_IOMAP(port)) = value; + else if (is_pci_ioaddr(port)) + *((unsigned char*)pci_ioaddr(port)) = value; else if (port <= 0x3F1) *(volatile unsigned char *)ETHER_IOMAP(port) = value; else @@ -137,21 +106,21 @@ void sh7751systemh_outb_p(unsigned char value, unsigned long port) { if (PXSEG(port)) *(volatile unsigned char *)port = value; - else if (CHECK_SH7751_PCIIO(port)) - *((unsigned char*)PCI_IOMAP(port)) = value; + else if (is_pci_ioaddr(port)) + *((unsigned char*)pci_ioaddr(port)) = value; else if (port <= 0x3F1) *(volatile unsigned char *)ETHER_IOMAP(port) = value; else *(port2adr(port)) = value; - delay(); + ctrl_delay(); } void sh7751systemh_outw(unsigned short value, unsigned long port) { if (PXSEG(port)) *(volatile unsigned short *)port = value; - else if (CHECK_SH7751_PCIIO(port)) - *((unsigned short *)PCI_IOMAP(port)) = value; + else if (is_pci_ioaddr(port)) + *((unsigned short *)pci_ioaddr(port)) = value; else if (port >= 0x2000) *port2adr(port) = value; else if (port <= 0x3F1) @@ -164,8 +133,8 @@ void sh7751systemh_outl(unsigned int value, unsigned long port) { if (PXSEG(port)) *(volatile unsigned long *)port = value; - else if (CHECK_SH7751_PCIIO(port)) - *((unsigned long*)PCI_IOMAP(port)) = value; + else if (is_pci_ioaddr(port)) + *((unsigned long*)pci_ioaddr(port)) = value; else maybebadio(port); } diff --git a/arch/sh/boards/se/770x/io.c b/arch/sh/boards/se/770x/io.c index 5102201c97ab..9941949331ab 100644 --- a/arch/sh/boards/se/770x/io.c +++ b/arch/sh/boards/se/770x/io.c @@ -1,4 +1,4 @@ -/* $Id: io.c,v 1.6 2006/01/04 17:53:54 lethal Exp $ +/* $Id: io.c,v 1.7 2006/02/05 21:55:29 lethal Exp $ * * linux/arch/sh/kernel/io_se.c * @@ -20,11 +20,6 @@ int sh_pcic_io_stop; int sh_pcic_io_type; int sh_pcic_io_dummy; -static inline void delay(void) -{ - ctrl_inw(0xa0000000); -} - /* MS7750 requires special versions of in*, out* routines, since PC-like io ports are located at upper half byte of 16-bit word which can be accessed only with 16-bit wide. */ @@ -72,7 +67,7 @@ unsigned char se_inb_p(unsigned long port) v = (*port2adr(port) >> 8); else v = (*port2adr(port))&0xff; - delay(); + ctrl_delay(); return v; } @@ -110,7 +105,7 @@ void se_outb_p(unsigned char value, unsigned long port) *(port2adr(port)) = value << 8; else *(port2adr(port)) = value; - delay(); + ctrl_delay(); } void se_outw(unsigned short value, unsigned long port) diff --git a/arch/sh/boards/se/7751/io.c b/arch/sh/boards/se/7751/io.c index 0e8a3ba48316..e8d846cec89d 100644 --- a/arch/sh/boards/se/7751/io.c +++ b/arch/sh/boards/se/7751/io.c @@ -1,6 +1,4 @@ /* - * linux/arch/sh/kernel/io_7751se.c - * * Copyright (C) 2001 Ian da Silva, Jeremy Siegel * Based largely on io_se.c. * @@ -10,55 +8,14 @@ * placeholder code from io_se.c left in with the * expectation of later SuperIO and PCMCIA access. */ - #include #include +#include #include #include #include -#include -#include "../../../drivers/pci/pci-sh7751.h" - -#if 0 -/****************************************************************** - * Variables from io_se.c, related to PCMCIA (not PCI); we're not - * compiling them in, and have removed references from functions - * which follow. [Many checked for IO ports in the range bounded - * by sh_pcic_io_start/stop, and used sh_pcic_io_wbase as offset. - * As start/stop are uninitialized, only port 0x0 would match?] - * When used, remember to adjust names to avoid clash with io_se? - *****************************************************************/ -/* SH pcmcia io window base, start and end. */ -int sh_pcic_io_wbase = 0xb8400000; -int sh_pcic_io_start; -int sh_pcic_io_stop; -int sh_pcic_io_type; -int sh_pcic_io_dummy; -/*************************************************************/ -#endif - -/* - * The 7751 Solution Engine uses the built-in PCI controller (PCIC) - * of the 7751 processor, and has a SuperIO accessible via the PCI. - * The board also includes a PCMCIA controller on its memory bus, - * like the other Solution Engine boards. - */ - -#define PCIIOBR (volatile long *)PCI_REG(SH7751_PCIIOBR) -#define PCIMBR (volatile long *)PCI_REG(SH7751_PCIMBR) -#define PCI_IO_AREA SH7751_PCI_IO_BASE -#define PCI_MEM_AREA SH7751_PCI_CONFIG_BASE - -#define PCI_IOMAP(adr) (PCI_IO_AREA + (adr & ~SH7751_PCIIOBR_MASK)) - -static inline void delay(void) -{ - ctrl_inw(0xa0000000); -} - -static inline volatile __u16 * -port2adr(unsigned int port) +static inline volatile u16 *port2adr(unsigned int port) { if (port >= 0x2000) return (volatile __u16 *) (PA_MRSHPC + (port - 0x2000)); @@ -66,32 +23,6 @@ port2adr(unsigned int port) return (volatile __u16*)port; } -#if 0 -/* The 7751 Solution Engine seems to have everything hooked */ -/* up pretty normally (nothing on high-bytes only...) so this */ -/* shouldn't be needed */ -static inline int -shifted_port(unsigned long port) -{ - /* For IDE registers, value is not shifted */ - if ((0x1f0 <= port && port < 0x1f8) || port == 0x3f6) - return 0; - else - return 1; -} -#endif - -/* In case someone configures the kernel w/o PCI support: in that */ -/* scenario, don't ever bother to check for PCI-window addresses */ - -/* NOTE: WINDOW CHECK MAY BE A BIT OFF, HIGH PCIBIOS_MIN_IO WRAPS? */ -#if defined(CONFIG_PCI) -#define CHECK_SH7751_PCIIO(port) \ - ((port >= PCIBIOS_MIN_IO) && (port < (PCIBIOS_MIN_IO + SH7751_PCI_IO_SIZE))) -#else -#define CHECK_SH7751_PCIIO(port) (0) -#endif - /* * General outline: remap really low stuff [eventually] to SuperIO, * stuff in PCI IO space (at or above window at pci.h:PCIBIOS_MIN_IO) @@ -103,10 +34,10 @@ unsigned char sh7751se_inb(unsigned long port) { if (PXSEG(port)) return *(volatile unsigned char *)port; - else if (CHECK_SH7751_PCIIO(port)) - return *(volatile unsigned char *)PCI_IOMAP(port); + else if (is_pci_ioaddr(port)) + return *(volatile unsigned char *)pci_ioaddr(port); else - return (*port2adr(port))&0xff; + return (*port2adr(port)) & 0xff; } unsigned char sh7751se_inb_p(unsigned long port) @@ -115,11 +46,11 @@ unsigned char sh7751se_inb_p(unsigned long port) if (PXSEG(port)) v = *(volatile unsigned char *)port; - else if (CHECK_SH7751_PCIIO(port)) - v = *(volatile unsigned char *)PCI_IOMAP(port); + else if (is_pci_ioaddr(port)) + v = *(volatile unsigned char *)pci_ioaddr(port); else - v = (*port2adr(port))&0xff; - delay(); + v = (*port2adr(port)) & 0xff; + ctrl_delay(); return v; } @@ -127,8 +58,8 @@ unsigned short sh7751se_inw(unsigned long port) { if (PXSEG(port)) return *(volatile unsigned short *)port; - else if (CHECK_SH7751_PCIIO(port)) - return *(volatile unsigned short *)PCI_IOMAP(port); + else if (is_pci_ioaddr(port)) + return *(volatile unsigned short *)pci_ioaddr(port); else if (port >= 0x2000) return *port2adr(port); else @@ -140,8 +71,8 @@ unsigned int sh7751se_inl(unsigned long port) { if (PXSEG(port)) return *(volatile unsigned long *)port; - else if (CHECK_SH7751_PCIIO(port)) - return *(volatile unsigned int *)PCI_IOMAP(port); + else if (is_pci_ioaddr(port)) + return *(volatile unsigned int *)pci_ioaddr(port); else if (port >= 0x2000) return *port2adr(port); else @@ -154,8 +85,8 @@ void sh7751se_outb(unsigned char value, unsigned long port) if (PXSEG(port)) *(volatile unsigned char *)port = value; - else if (CHECK_SH7751_PCIIO(port)) - *((unsigned char*)PCI_IOMAP(port)) = value; + else if (is_pci_ioaddr(port)) + *((unsigned char*)pci_ioaddr(port)) = value; else *(port2adr(port)) = value; } @@ -164,19 +95,19 @@ void sh7751se_outb_p(unsigned char value, unsigned long port) { if (PXSEG(port)) *(volatile unsigned char *)port = value; - else if (CHECK_SH7751_PCIIO(port)) - *((unsigned char*)PCI_IOMAP(port)) = value; + else if (is_pci_ioaddr(port)) + *((unsigned char*)pci_ioaddr(port)) = value; else *(port2adr(port)) = value; - delay(); + ctrl_delay(); } void sh7751se_outw(unsigned short value, unsigned long port) { if (PXSEG(port)) *(volatile unsigned short *)port = value; - else if (CHECK_SH7751_PCIIO(port)) - *((unsigned short *)PCI_IOMAP(port)) = value; + else if (is_pci_ioaddr(port)) + *((unsigned short *)pci_ioaddr(port)) = value; else if (port >= 0x2000) *port2adr(port) = value; else @@ -187,8 +118,8 @@ void sh7751se_outl(unsigned int value, unsigned long port) { if (PXSEG(port)) *(volatile unsigned long *)port = value; - else if (CHECK_SH7751_PCIIO(port)) - *((unsigned long*)PCI_IOMAP(port)) = value; + else if (is_pci_ioaddr(port)) + *((unsigned long*)pci_ioaddr(port)) = value; else maybebadio(port); } @@ -202,35 +133,3 @@ void sh7751se_outsl(unsigned long port, const void *addr, unsigned long count) { maybebadio(port); } - -/* Map ISA bus address to the real address. Only for PCMCIA. */ - -/* ISA page descriptor. */ -static __u32 sh_isa_memmap[256]; - -#if 0 -static int -sh_isa_mmap(__u32 start, __u32 length, __u32 offset) -{ - int idx; - - if (start >= 0x100000 || (start & 0xfff) || (length != 0x1000)) - return -1; - - idx = start >> 12; - sh_isa_memmap[idx] = 0xb8000000 + (offset &~ 0xfff); - printk("sh_isa_mmap: start %x len %x offset %x (idx %x paddr %x)\n", - start, length, offset, idx, sh_isa_memmap[idx]); - return 0; -} -#endif - -unsigned long -sh7751se_isa_port2addr(unsigned long offset) -{ - int idx; - - idx = (offset >> 12) & 0xff; - offset &= 0xfff; - return sh_isa_memmap[idx] + offset; -} diff --git a/arch/sh/boards/sh03/setup.c b/arch/sh/boards/sh03/setup.c index dab742a00c6f..7d31d6aed8a5 100644 --- a/arch/sh/boards/sh03/setup.c +++ b/arch/sh/boards/sh03/setup.c @@ -12,11 +12,10 @@ #include #include #include -#include "../../drivers/pci/pci-sh7751.h" const char *get_system_type(void) { - return "Interface CTP/PCI-SH03)"; + return "Interface (CTP/PCI-SH03)"; } static void init_sh03_IRQ(void) @@ -39,7 +38,7 @@ static void __iomem *sh03_ioport_map(unsigned long port, unsigned int size) if (((port >= 0x1f0) && (port <= 0x1f7)) || (port == 0x3f6)) return (void __iomem *)((unsigned long)cf_io_base + port); - return (void __iomem *)(port + SH7751_PCI_IO_BASE); + return (void __iomem *)(port + PCI_IO_BASE); } struct sh_machine_vector mv_sh03 __initmv = { @@ -51,7 +50,6 @@ struct sh_machine_vector mv_sh03 __initmv = { .mv_heartbeat = heartbeat_sh03, #endif }; - ALIAS_MV(sh03) /* arch/sh/boards/sh03/rtc.c */ diff --git a/arch/sh/boards/snapgear/io.c b/arch/sh/boards/snapgear/io.c index 9f700b8392bb..0f4824264557 100644 --- a/arch/sh/boards/snapgear/io.c +++ b/arch/sh/boards/snapgear/io.c @@ -1,6 +1,4 @@ -/* - * linux/arch/sh/kernel/io_7751se.c - * +/* * Copyright (C) 2002 David McCullough * Copyright (C) 2001 Ian da Silva, Jeremy Siegel * Based largely on io_se.c. @@ -11,54 +9,22 @@ * placeholder code from io_se.c left in with the * expectation of later SuperIO and PCMCIA access. */ - #include #include #include #include #include -#include -#include "../../drivers/pci/pci-sh7751.h" - #ifdef CONFIG_SH_SECUREEDGE5410 unsigned short secureedge5410_ioport; #endif -/* - * The SnapGear uses the built-in PCI controller (PCIC) - * of the 7751 processor - */ - -#define PCIIOBR (volatile long *)PCI_REG(SH7751_PCIIOBR) -#define PCIMBR (volatile long *)PCI_REG(SH7751_PCIMBR) -#define PCI_IO_AREA SH7751_PCI_IO_BASE -#define PCI_MEM_AREA SH7751_PCI_CONFIG_BASE - -#define PCI_IOMAP(adr) (PCI_IO_AREA + (adr & ~SH7751_PCIIOBR_MASK)) - -static inline void delay(void) -{ - ctrl_inw(0xa0000000); -} - static inline volatile __u16 *port2adr(unsigned int port) { maybebadio((unsigned long)port); return (volatile __u16*)port; } -/* In case someone configures the kernel w/o PCI support: in that */ -/* scenario, don't ever bother to check for PCI-window addresses */ - -/* NOTE: WINDOW CHECK MAY BE A BIT OFF, HIGH PCIBIOS_MIN_IO WRAPS? */ -#if defined(CONFIG_PCI) -#define CHECK_SH7751_PCIIO(port) \ - ((port >= PCIBIOS_MIN_IO) && (port < (PCIBIOS_MIN_IO + SH7751_PCI_IO_SIZE))) -#else -#define CHECK_SH7751_PCIIO(port) (0) -#endif - /* * General outline: remap really low stuff [eventually] to SuperIO, * stuff in PCI IO space (at or above window at pci.h:PCIBIOS_MIN_IO) @@ -66,39 +32,36 @@ static inline volatile __u16 *port2adr(unsigned int port) * should be way beyond the window, and is used w/o translation for * compatibility. */ - unsigned char snapgear_inb(unsigned long port) { if (PXSEG(port)) return *(volatile unsigned char *)port; - else if (CHECK_SH7751_PCIIO(port)) - return *(volatile unsigned char *)PCI_IOMAP(port); + else if (is_pci_ioaddr(port)) + return *(volatile unsigned char *)pci_ioaddr(port); else - return (*port2adr(port))&0xff; + return (*port2adr(port)) & 0xff; } - unsigned char snapgear_inb_p(unsigned long port) { unsigned char v; if (PXSEG(port)) v = *(volatile unsigned char *)port; - else if (CHECK_SH7751_PCIIO(port)) - v = *(volatile unsigned char *)PCI_IOMAP(port); + else if (is_pci_ioaddr(port)) + v = *(volatile unsigned char *)pci_ioaddr(port); else - v = (*port2adr(port))&0xff; - delay(); + v = (*port2adr(port))&0xff; + ctrl_delay(); return v; } - unsigned short snapgear_inw(unsigned long port) { if (PXSEG(port)) return *(volatile unsigned short *)port; - else if (CHECK_SH7751_PCIIO(port)) - return *(volatile unsigned short *)PCI_IOMAP(port); + else if (is_pci_ioaddr(port)) + return *(volatile unsigned short *)pci_ioaddr(port); else if (port >= 0x2000) return *port2adr(port); else @@ -106,13 +69,12 @@ unsigned short snapgear_inw(unsigned long port) return 0; } - unsigned int snapgear_inl(unsigned long port) { if (PXSEG(port)) return *(volatile unsigned long *)port; - else if (CHECK_SH7751_PCIIO(port)) - return *(volatile unsigned int *)PCI_IOMAP(port); + else if (is_pci_ioaddr(port)) + return *(volatile unsigned int *)pci_ioaddr(port); else if (port >= 0x2000) return *port2adr(port); else @@ -120,50 +82,46 @@ unsigned int snapgear_inl(unsigned long port) return 0; } - void snapgear_outb(unsigned char value, unsigned long port) { if (PXSEG(port)) *(volatile unsigned char *)port = value; - else if (CHECK_SH7751_PCIIO(port)) - *((unsigned char*)PCI_IOMAP(port)) = value; + else if (is_pci_ioaddr(port)) + *((unsigned char*)pci_ioaddr(port)) = value; else *(port2adr(port)) = value; } - void snapgear_outb_p(unsigned char value, unsigned long port) { if (PXSEG(port)) *(volatile unsigned char *)port = value; - else if (CHECK_SH7751_PCIIO(port)) - *((unsigned char*)PCI_IOMAP(port)) = value; + else if (is_pci_ioaddr(port)) + *((unsigned char*)pci_ioaddr(port)) = value; else *(port2adr(port)) = value; - delay(); + ctrl_delay(); } - void snapgear_outw(unsigned short value, unsigned long port) { if (PXSEG(port)) *(volatile unsigned short *)port = value; - else if (CHECK_SH7751_PCIIO(port)) - *((unsigned short *)PCI_IOMAP(port)) = value; + else if (is_pci_ioaddr(port)) + *((unsigned short *)pci_ioaddr(port)) = value; else if (port >= 0x2000) *port2adr(port) = value; else maybebadio(port); } - void snapgear_outl(unsigned int value, unsigned long port) { if (PXSEG(port)) *(volatile unsigned long *)port = value; - else if (CHECK_SH7751_PCIIO(port)) - *((unsigned long*)PCI_IOMAP(port)) = value; + else if (is_pci_ioaddr(port)) + *((unsigned long*)pci_ioaddr(port)) = value; else maybebadio(port); } diff --git a/arch/sh/boards/titan/io.c b/arch/sh/boards/titan/io.c index 48f3494f55b1..4730c1dd697d 100644 --- a/arch/sh/boards/titan/io.c +++ b/arch/sh/boards/titan/io.c @@ -1,34 +1,11 @@ /* * I/O routines for Titan */ - #include #include #include #include #include -#include "../../drivers/pci/pci-sh7751.h" - -#define PCIIOBR (volatile long *)PCI_REG(SH7751_PCIIOBR) -#define PCIMBR (volatile long *)PCI_REG(SH7751_PCIMBR) -#define PCI_IO_AREA SH7751_PCI_IO_BASE -#define PCI_MEM_AREA SH7751_PCI_CONFIG_BASE - -#define PCI_IOMAP(adr) (PCI_IO_AREA + (adr & ~SH7751_PCIIOBR_MASK)) - -#if defined(CONFIG_PCI) -#define CHECK_SH7751_PCIIO(port) \ - ((port >= PCIBIOS_MIN_IO) && (port < (PCIBIOS_MIN_IO + SH7751_PCI_IO_SIZE))) -#define CHECK_SH7751_PCIMEMIO(port) \ - ((port >= PCIBIOS_MIN_MEM) && (port < (PCIBIOS_MIN_MEM + SH7751_PCI_MEM_SIZE))) -#else -#define CHECK_SH7751_PCIIO(port) (0) -#endif - -static inline void delay(void) -{ - ctrl_inw(0xa0000000); -} static inline unsigned int port2adr(unsigned int port) { @@ -40,8 +17,8 @@ u8 titan_inb(unsigned long port) { if (PXSEG(port)) return ctrl_inb(port); - else if (CHECK_SH7751_PCIIO(port)) - return ctrl_inb(PCI_IOMAP(port)); + else if (is_pci_ioaddr(port)) + return ctrl_inb(pci_ioaddr(port)); return ctrl_inw(port2adr(port)) & 0xff; } @@ -51,11 +28,11 @@ u8 titan_inb_p(unsigned long port) if (PXSEG(port)) v = ctrl_inb(port); - else if (CHECK_SH7751_PCIIO(port)) - v = ctrl_inb(PCI_IOMAP(port)); + else if (is_pci_ioaddr(port)) + v = ctrl_inb(pci_ioaddr(port)); else v = ctrl_inw(port2adr(port)) & 0xff; - delay(); + ctrl_delay(); return v; } @@ -63,8 +40,8 @@ u16 titan_inw(unsigned long port) { if (PXSEG(port)) return ctrl_inw(port); - else if (CHECK_SH7751_PCIIO(port)) - return ctrl_inw(PCI_IOMAP(port)); + else if (is_pci_ioaddr(port)) + return ctrl_inw(pci_ioaddr(port)); else if (port >= 0x2000) return ctrl_inw(port2adr(port)); else @@ -76,8 +53,8 @@ u32 titan_inl(unsigned long port) { if (PXSEG(port)) return ctrl_inl(port); - else if (CHECK_SH7751_PCIIO(port)) - return ctrl_inl(PCI_IOMAP(port)); + else if (is_pci_ioaddr(port)) + return ctrl_inl(pci_ioaddr(port)); else if (port >= 0x2000) return ctrl_inw(port2adr(port)); else @@ -89,8 +66,8 @@ void titan_outb(u8 value, unsigned long port) { if (PXSEG(port)) ctrl_outb(value, port); - else if (CHECK_SH7751_PCIIO(port)) - ctrl_outb(value, PCI_IOMAP(port)); + else if (is_pci_ioaddr(port)) + ctrl_outb(value, pci_ioaddr(port)); else ctrl_outw(value, port2adr(port)); } @@ -99,19 +76,19 @@ void titan_outb_p(u8 value, unsigned long port) { if (PXSEG(port)) ctrl_outb(value, port); - else if (CHECK_SH7751_PCIIO(port)) - ctrl_outb(value, PCI_IOMAP(port)); + else if (is_pci_ioaddr(port)) + ctrl_outb(value, pci_ioaddr(port)); else ctrl_outw(value, port2adr(port)); - delay(); + ctrl_delay(); } void titan_outw(u16 value, unsigned long port) { if (PXSEG(port)) ctrl_outw(value, port); - else if (CHECK_SH7751_PCIIO(port)) - ctrl_outw(value, PCI_IOMAP(port)); + else if (is_pci_ioaddr(port)) + ctrl_outw(value, pci_ioaddr(port)); else if (port >= 0x2000) ctrl_outw(value, port2adr(port)); else @@ -122,8 +99,8 @@ void titan_outl(u32 value, unsigned long port) { if (PXSEG(port)) ctrl_outl(value, port); - else if (CHECK_SH7751_PCIIO(port)) - ctrl_outl(value, PCI_IOMAP(port)); + else if (is_pci_ioaddr(port)) + ctrl_outl(value, pci_ioaddr(port)); else maybebadio(port); } @@ -140,10 +117,10 @@ void titan_outsl(unsigned long port, const void *src, unsigned long count) void __iomem *titan_ioport_map(unsigned long port, unsigned int size) { - if (PXSEG(port) || CHECK_SH7751_PCIMEMIO(port)) + if (PXSEG(port) || is_pci_memaddr(port)) return (void __iomem *)port; - else if (CHECK_SH7751_PCIIO(port)) - return (void __iomem *)PCI_IOMAP(port); + else if (is_pci_ioaddr(port)) + return (void __iomem *)pci_ioaddr(port); return (void __iomem *)port2adr(port); } diff --git a/arch/sh/cchips/hd6446x/hd64461/io.c b/arch/sh/cchips/hd6446x/hd64461/io.c index f77f18f2ba7f..7909a1b7b512 100644 --- a/arch/sh/cchips/hd6446x/hd64461/io.c +++ b/arch/sh/cchips/hd6446x/hd64461/io.c @@ -53,11 +53,6 @@ static __inline__ unsigned long PORT2ADDR(unsigned long port) return 0xa0000000 + (port & 0x1fffffff); } -static inline void delay(void) -{ - ctrl_inw(0xa0000000); -} - unsigned char hd64461_inb(unsigned long port) { return *(volatile unsigned char*)PORT2ADDR(port); @@ -66,7 +61,7 @@ unsigned char hd64461_inb(unsigned long port) unsigned char hd64461_inb_p(unsigned long port) { unsigned long v = *(volatile unsigned char*)PORT2ADDR(port); - delay(); + ctrl_delay(); return v; } @@ -88,7 +83,7 @@ void hd64461_outb(unsigned char b, unsigned long port) void hd64461_outb_p(unsigned char b, unsigned long port) { *(volatile unsigned char*)PORT2ADDR(port) = b; - delay(); + ctrl_delay(); } void hd64461_outw(unsigned short b, unsigned long port) diff --git a/arch/sh/drivers/pci/Makefile b/arch/sh/drivers/pci/Makefile index 3d8078f1c05f..9e00cb8a39e9 100644 --- a/arch/sh/drivers/pci/Makefile +++ b/arch/sh/drivers/pci/Makefile @@ -6,8 +6,8 @@ obj-y += pci.o obj-$(CONFIG_PCI_AUTO) += pci-auto.o obj-$(CONFIG_CPU_SUBTYPE_ST40STB1) += pci-st40.o -obj-$(CONFIG_CPU_SUBTYPE_SH7751) += pci-sh7751.o -obj-$(CONFIG_CPU_SUBTYPE_SH7780) += pci-sh7780.o +obj-$(CONFIG_CPU_SUBTYPE_SH7751) += pci-sh7751.o ops-sh4.o +obj-$(CONFIG_CPU_SUBTYPE_SH7780) += pci-sh7780.o ops-sh4.o obj-$(CONFIG_SH_DREAMCAST) += ops-dreamcast.o fixups-dreamcast.o \ dma-dreamcast.o @@ -17,3 +17,4 @@ obj-$(CONFIG_SH_RTS7751R2D) += ops-rts7751r2d.o fixups-rts7751r2d.o obj-$(CONFIG_SH_SH03) += ops-sh03.o fixups-sh03.o obj-$(CONFIG_SH_R7780RP) += ops-r7780rp.o fixups-r7780rp.o obj-$(CONFIG_SH_TITAN) += ops-titan.o +obj-$(CONFIG_SH_LANDISK) += ops-landisk.o diff --git a/arch/sh/drivers/pci/fixups-dreamcast.c b/arch/sh/drivers/pci/fixups-dreamcast.c index 63b1c6f4b8d2..c0af5f7ef414 100644 --- a/arch/sh/drivers/pci/fixups-dreamcast.c +++ b/arch/sh/drivers/pci/fixups-dreamcast.c @@ -4,7 +4,7 @@ * PCI fixups for the Sega Dreamcast * * Copyright (C) 2001, 2002 M. R. Brown - * Copyright (C) 2002, 2003 Paul Mundt + * Copyright (C) 2002, 2003, 2006 Paul Mundt * * This file originally bore the message (with enclosed-$): * Id: pci.c,v 1.3 2003/05/04 19:29:46 lethal Exp @@ -45,36 +45,16 @@ static void __init gapspci_fixup_resources(struct pci_dev *dev) printk("PCI: Failed resource fixup\n"); } } - DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, gapspci_fixup_resources); -void __init pcibios_fixup_bus(struct pci_bus *bus) +int __init pcibios_map_platform_irq(struct pci_dev *dev, u8 slot, u8 pin) { - /* - * We don't have any sub bus to fix up, and this is a rather - * stupid place to put general device fixups. Don't do it. - * Use the pcibios_fixups table or suffer the consequences. + /* + * The interrupt routing semantics here are quite trivial. + * + * We basically only support one interrupt, so we only bother + * updating a device's interrupt line with this single shared + * interrupt. Keeps routing quite simple, doesn't it? */ + return GAPSPCI_IRQ; } - -void __init pcibios_fixup_irqs(void) -{ - struct pci_dev *dev = 0; - - for_each_pci_dev(dev) { - /* - * The interrupt routing semantics here are quite trivial. - * - * We basically only support one interrupt, so we only bother - * updating a device's interrupt line with this single shared - * interrupt. Keeps routing quite simple, doesn't it? - */ - printk(KERN_NOTICE "PCI: Fixing up IRQ routing for device %s\n", - pci_name(dev)); - - dev->irq = GAPSPCI_IRQ; - - pci_write_config_byte(dev, PCI_INTERRUPT_LINE, dev->irq); - } -} - diff --git a/arch/sh/drivers/pci/fixups-r7780rp.c b/arch/sh/drivers/pci/fixups-r7780rp.c index b656b562ec99..3e321df65d22 100644 --- a/arch/sh/drivers/pci/fixups-r7780rp.c +++ b/arch/sh/drivers/pci/fixups-r7780rp.c @@ -4,36 +4,42 @@ * Highlander R7780RP-1 PCI fixups * * Copyright (C) 2003 Lineo uSolutions, Inc. - * Copyright (C) 2004 Paul Mundt + * Copyright (C) 2004 - 2006 Paul Mundt * * 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 "pci-sh7780.h" +#include +#include "pci-sh4.h" #include int pci_fixup_pcic(void) { - outl(0x000043ff, PCI_REG(SH7780_PCIIMR)); - outl(0x0000380f, PCI_REG(SH7780_PCIAINTM)); + pci_write_reg(0x000043ff, SH4_PCIINTM); + pci_write_reg(0x0000380f, SH4_PCIAINTM); - outl(0xfbb00047, PCI_REG(SH7780_PCICMD)); - outl(0x00000000, PCI_REG(SH7780_PCIIBAR)); + pci_write_reg(0xfbb00047, SH7780_PCICMD); + pci_write_reg(0x00000000, SH7780_PCIIBAR); - outl(0x00011912, PCI_REG(SH7780_PCISVID)); - outl(0x08000000, PCI_REG(SH7780_PCICSCR0)); - outl(0x0000001b, PCI_REG(SH7780_PCICSAR0)); - outl(0xfd000000, PCI_REG(SH7780_PCICSCR1)); - outl(0x0000000f, PCI_REG(SH7780_PCICSAR1)); + pci_write_reg(0x00011912, SH7780_PCISVID); + pci_write_reg(0x08000000, SH7780_PCICSCR0); + pci_write_reg(0x0000001b, SH7780_PCICSAR0); + pci_write_reg(0xfd000000, SH7780_PCICSCR1); + pci_write_reg(0x0000000f, SH7780_PCICSAR1); - outl(0xfd000000, PCI_REG(SH7780_PCIMBR0)); - outl(0x00fc0000, PCI_REG(SH7780_PCIMBMR0)); + pci_write_reg(0xfd000000, SH7780_PCIMBR0); + pci_write_reg(0x00fc0000, SH7780_PCIMBMR0); + +#ifdef CONFIG_32BIT + pci_write_reg(0xc0000000, SH7780_PCIMBR2); + pci_write_reg(0x20000000 - SH7780_PCI_IO_SIZE, SH7780_PCIMBMR2); +#endif /* Set IOBR for windows containing area specified in pci.h */ - outl((PCIBIOS_MIN_IO & ~(SH7780_PCI_IO_SIZE-1)), PCI_REG(SH7780_PCIIOBR)); - outl(((SH7780_PCI_IO_SIZE-1) & (7<<18)), PCI_REG(SH7780_PCIIOBMR)); + pci_write_reg((PCIBIOS_MIN_IO & ~(SH7780_PCI_IO_SIZE - 1)), + SH7780_PCIIOBR); + pci_write_reg(((SH7780_PCI_IO_SIZE-1) & (7<<18)), SH7780_PCIIOBMR); return 0; } - diff --git a/arch/sh/drivers/pci/fixups-rts7751r2d.c b/arch/sh/drivers/pci/fixups-rts7751r2d.c index 0c590fc7a081..e72ceb560d5b 100644 --- a/arch/sh/drivers/pci/fixups-rts7751r2d.c +++ b/arch/sh/drivers/pci/fixups-rts7751r2d.c @@ -10,8 +10,7 @@ * License. See the file "COPYING" in the main directory of this archive * for more details. */ -#include "pci-sh7751.h" -#include +#include "pci-sh4.h" #define PCIMCR_MRSET_OFF 0xBFFFFFFF #define PCIMCR_RFSH_OFF 0xFFFFFFFB @@ -22,22 +21,23 @@ int pci_fixup_pcic(void) bcr1 = inl(SH7751_BCR1); bcr1 |= 0x40080000; /* Enable Bit 19 BREQEN, set PCIC to slave */ - outl(bcr1, PCI_REG(SH7751_PCIBCR1)); + pci_write_reg(bcr1, SH4_PCIBCR1); /* Enable all interrupts, so we known what to fix */ - outl(0x0000c3ff, PCI_REG(SH7751_PCIINTM)); - outl(0x0000380f, PCI_REG(SH7751_PCIAINTM)); + pci_write_reg(0x0000c3ff, SH4_PCIINTM); + pci_write_reg(0x0000380f, SH4_PCIAINTM); - outl(0xfb900047, PCI_REG(SH7751_PCICONF1)); - outl(0xab000001, PCI_REG(SH7751_PCICONF4)); + pci_write_reg(0xfb900047, SH7751_PCICONF1); + pci_write_reg(0xab000001, SH7751_PCICONF4); mcr = inl(SH7751_MCR); mcr = (mcr & PCIMCR_MRSET_OFF) & PCIMCR_RFSH_OFF; - outl(mcr, PCI_REG(SH7751_PCIMCR)); + pci_write_reg(mcr, SH4_PCIMCR); + + pci_write_reg(0x0c000000, SH7751_PCICONF5); + pci_write_reg(0xd0000000, SH7751_PCICONF6); + pci_write_reg(0x0c000000, SH4_PCILAR0); + pci_write_reg(0x00000000, SH4_PCILAR1); - outl(0x0c000000, PCI_REG(SH7751_PCICONF5)); - outl(0xd0000000, PCI_REG(SH7751_PCICONF6)); - outl(0x0c000000, PCI_REG(SH7751_PCILAR0)); - outl(0x00000000, PCI_REG(SH7751_PCILAR1)); return 0; } diff --git a/arch/sh/drivers/pci/fixups-sh03.c b/arch/sh/drivers/pci/fixups-sh03.c index 57ac26c2171f..2e8a18b7ee53 100644 --- a/arch/sh/drivers/pci/fixups-sh03.c +++ b/arch/sh/drivers/pci/fixups-sh03.c @@ -3,11 +3,7 @@ #include #include -/* - * IRQ functions - */ - -int __init pcibios_map_platform_irq(u8 slot, u8 pin, struct pci_dev *dev) +int __init pcibios_map_platform_irq(struct pci_dev *dev, u8 slot, u8 pin) { int irq; @@ -17,8 +13,9 @@ int __init pcibios_map_platform_irq(u8 slot, u8 pin, struct pci_dev *dev) case 8: return 5; /* eth1 */ case 6: return 2; /* PCI bridge */ default: - printk("PCI: Bad IRQ mapping request for slot %d\n", slot); - return 2; + printk(KERN_ERR "PCI: Bad IRQ mapping request " + "for slot %d\n", slot); + return 2; } } else { switch (pin) { @@ -32,30 +29,3 @@ int __init pcibios_map_platform_irq(u8 slot, u8 pin, struct pci_dev *dev) } return irq; } - -static u8 __init sh03_no_swizzle(struct pci_dev *dev, u8 *pin) -{ - /* no swizzling */ - return PCI_SLOT(dev->devfn); -} - -static int sh03_pci_lookup_irq(struct pci_dev *dev, u8 slot, u8 pin) -{ - int irq = -1; - - /* now lookup the actual IRQ on a platform specific basis (pci-'platform'.c) */ - irq = pcibios_map_platform_irq(slot, pin, dev); - if( irq < 0 ) { - pr_debug("PCI: Error mapping IRQ on device %s\n", pci_name(dev)); - return irq; - } - - pr_debug("Setting IRQ for slot %s to %d\n", pci_name(dev), irq); - - return irq; -} - -void __init pcibios_fixup_irqs(void) -{ - pci_fixup_irqs(sh03_no_swizzle, sh03_pci_lookup_irq); -} diff --git a/arch/sh/drivers/pci/ops-bigsur.c b/arch/sh/drivers/pci/ops-bigsur.c index ae82c6ca05e5..5da501bd77b5 100644 --- a/arch/sh/drivers/pci/ops-bigsur.c +++ b/arch/sh/drivers/pci/ops-bigsur.c @@ -10,15 +10,12 @@ * * PCI initialization for the Hitachi Big Sur Evaluation Board */ - #include #include #include -#include #include - #include -#include "pci-sh7751.h" +#include "pci-sh4.h" #include #define BIGSUR_PCI_IO 0x4000 @@ -41,11 +38,11 @@ static struct resource sh7751_mem_resource = { extern struct pci_ops sh7751_pci_ops; struct pci_channel board_pci_channels[] = { - { &sh7751_pci_ops, &sh7751_io_resource, &sh7751_mem_resource, 0, 0xff }, + { &sh4_pci_ops, &sh7751_io_resource, &sh7751_mem_resource, 0, 0xff }, { 0, } }; -static struct sh7751_pci_address_map sh7751_pci_map = { +static struct sh4_pci_address_map sh7751_pci_map = { .window0 = { .base = SH7751_CS3_BASE_ADDR, .size = BIGSUR_LSR0_SIZE, @@ -58,7 +55,7 @@ static struct sh7751_pci_address_map sh7751_pci_map = { }; /* - * Initialize the Big Sur PCI interface + * Initialize the Big Sur PCI interface * Setup hardware to be Central Funtion * Copy the BSR regs to the PCI interface * Setup PCI windows into local RAM @@ -68,15 +65,15 @@ int __init pcibios_init_platform(void) return sh7751_pcic_init(&sh7751_pci_map); } -int pcibios_map_platform_irq(u8 slot, u8 pin) +int __init pcibios_map_platform_irq(struct pci_dev *pdev, u8 slot, u8 pin) { - /* + /* * The Big Sur can be used in a CPCI chassis, but the SH7751 PCI * interface is on the wrong end of the board so that it can also * support a V320 CPI interface chip... Therefor the IRQ mapping is * somewhat use dependent... I'l assume a linear map for now, i.e. * INTA=slot0,pin0... INTD=slot3,pin0... - */ + */ int irq = (slot + pin-1) % 4 + BIGSUR_SH7751_PCI_IRQ_BASE; PCIDBG(2, "PCI: Mapping Big Sur IRQ for slot %d, pin %c to irq %d\n", @@ -84,4 +81,3 @@ int pcibios_map_platform_irq(u8 slot, u8 pin) return irq; } - diff --git a/arch/sh/drivers/pci/ops-landisk.c b/arch/sh/drivers/pci/ops-landisk.c new file mode 100644 index 000000000000..ada301c21fe7 --- /dev/null +++ b/arch/sh/drivers/pci/ops-landisk.c @@ -0,0 +1,68 @@ +/* + * arch/sh/drivers/pci/ops-landisk.c + * + * PCI initialization for the I-O DATA Device, Inc. LANDISK board + * + * Copyright (C) 2006 kogiidena + * + * May be copied or modified under the terms of the GNU General Public + * License. See linux/COPYING for more information. + */ +#include +#include +#include +#include +#include +#include +#include "pci-sh4.h" + +static struct resource sh7751_io_resource = { + .name = "SH7751 IO", + .start = 0x4000, + .end = 0x4000 + SH7751_PCI_IO_SIZE - 1, + .flags = IORESOURCE_IO +}; + +static struct resource sh7751_mem_resource = { + .name = "SH7751 mem", + .start = SH7751_PCI_MEMORY_BASE, + .end = SH7751_PCI_MEMORY_BASE + SH7751_PCI_MEM_SIZE - 1, + .flags = IORESOURCE_MEM +}; + +struct pci_channel board_pci_channels[] = { + {&sh4_pci_ops, &sh7751_io_resource, &sh7751_mem_resource, 0, 0x3ff}, + {NULL, NULL, NULL, 0, 0}, +}; + +static struct sh4_pci_address_map sh7751_pci_map = { + .window0 = { + .base = SH7751_CS3_BASE_ADDR, + .size = (64 << 20), /* 64MB */ + }, + + .flags = SH4_PCIC_NO_RESET, +}; + +int __init pcibios_init_platform(void) +{ + return sh7751_pcic_init(&sh7751_pci_map); +} + +int pcibios_map_platform_irq(struct pci_dev *pdev, u8 slot, u8 pin) +{ + /* + * slot0: pin1-4 = irq5,6,7,8 + * slot1: pin1-4 = irq6,7,8,5 + * slot2: pin1-4 = irq7,8,5,6 + * slot3: pin1-4 = irq8,5,6,7 + */ + int irq = ((slot + pin - 1) & 0x3) + 5; + + if ((slot | (pin - 1)) > 0x3) { + printk("PCI: Bad IRQ mapping request for slot %d pin %c\n", + slot, pin - 1 + 'A'); + return -1; + } + return irq; +} diff --git a/arch/sh/drivers/pci/ops-r7780rp.c b/arch/sh/drivers/pci/ops-r7780rp.c index 3254c4e917a9..554d5ed2c586 100644 --- a/arch/sh/drivers/pci/ops-r7780rp.c +++ b/arch/sh/drivers/pci/ops-r7780rp.c @@ -15,13 +15,11 @@ #include #include #include -#include - -#include -#include "pci-sh7780.h" #include +#include +#include "pci-sh4.h" -int __init pcibios_map_platform_irq(u8 slot, u8 pin) +int __init pcibios_map_platform_irq(struct pci_dev *pdev, u8 slot, u8 pin) { switch (slot) { case 0: return IRQ_PCISLOT1; /* PCI Interrupt #1 */ @@ -29,7 +27,8 @@ int __init pcibios_map_platform_irq(u8 slot, u8 pin) case 2: return IRQ_PCISLOT3; /* PCI Interrupt #3 */ case 3: return IRQ_PCISLOT4; /* PCI Interrupt E4 */ default: - printk("PCI: Bad IRQ mapping request for slot %d, func %d\n", slot, pin-1); + printk(KERN_ERR "PCI: Bad IRQ mapping " + "request for slot %d, func %d\n", slot, pin-1); return -1; } } @@ -51,12 +50,12 @@ static struct resource sh7780_mem_resource = { extern struct pci_ops sh7780_pci_ops; struct pci_channel board_pci_channels[] = { - { &sh7780_pci_ops, &sh7780_io_resource, &sh7780_mem_resource, 0, 0xff }, + { &sh4_pci_ops, &sh7780_io_resource, &sh7780_mem_resource, 0, 0xff }, { NULL, NULL, NULL, 0, 0 }, }; EXPORT_SYMBOL(board_pci_channels); -static struct sh7780_pci_address_map sh7780_pci_map = { +static struct sh4_pci_address_map sh7780_pci_map = { .window0 = { .base = SH7780_CS2_BASE_ADDR, .size = 0x04000000, @@ -67,11 +66,10 @@ static struct sh7780_pci_address_map sh7780_pci_map = { .size = 0x04000000, }, - .flags = SH7780_PCIC_NO_RESET, + .flags = SH4_PCIC_NO_RESET, }; int __init pcibios_init_platform(void) { return sh7780_pcic_init(&sh7780_pci_map); } - diff --git a/arch/sh/drivers/pci/ops-rts7751r2d.c b/arch/sh/drivers/pci/ops-rts7751r2d.c index 83171d10141a..88f44e245424 100644 --- a/arch/sh/drivers/pci/ops-rts7751r2d.c +++ b/arch/sh/drivers/pci/ops-rts7751r2d.c @@ -17,12 +17,11 @@ #include #include #include - -#include -#include "pci-sh7751.h" #include +#include +#include "pci-sh4.h" -int __init pcibios_map_platform_irq(u8 slot, u8 pin) +int __init pcibios_map_platform_irq(struct pci_dev *pdev, u8 slot, u8 pin) { switch (slot) { case 0: return IRQ_PCISLOT1; /* PCI Extend slot #1 */ @@ -52,12 +51,12 @@ static struct resource sh7751_mem_resource = { extern struct pci_ops sh7751_pci_ops; struct pci_channel board_pci_channels[] = { - { &sh7751_pci_ops, &sh7751_io_resource, &sh7751_mem_resource, 0, 0xff }, + { &sh4_pci_ops, &sh7751_io_resource, &sh7751_mem_resource, 0, 0xff }, { NULL, NULL, NULL, 0, 0 }, }; EXPORT_SYMBOL(board_pci_channels); -static struct sh7751_pci_address_map sh7751_pci_map = { +static struct sh4_pci_address_map sh7751_pci_map = { .window0 = { .base = SH7751_CS3_BASE_ADDR, .size = 0x04000000, @@ -68,7 +67,7 @@ static struct sh7751_pci_address_map sh7751_pci_map = { .size = 0x00000000, /* Unused */ }, - .flags = SH7751_PCIC_NO_RESET, + .flags = SH4_PCIC_NO_RESET, }; int __init pcibios_init_platform(void) diff --git a/arch/sh/drivers/pci/ops-sh4.c b/arch/sh/drivers/pci/ops-sh4.c new file mode 100644 index 000000000000..2d4371009a5e --- /dev/null +++ b/arch/sh/drivers/pci/ops-sh4.c @@ -0,0 +1,164 @@ +/* + * Generic SH-4 / SH-4A PCIC operations (SH7751, SH7780). + * + * Copyright (C) 2002 - 2006 Paul Mundt + * + * This file is subject to the terms and conditions of the GNU General Public + * License v2. See the file "COPYING" in the main directory of this archive + * for more details. + */ +#include +#include +#include +#include "pci-sh4.h" + +/* + * Direct access to PCI hardware... + */ +#define CONFIG_CMD(bus, devfn, where) \ + P1SEGADDR((bus->number << 16) | (devfn << 8) | (where & ~3)) + +static DEFINE_SPINLOCK(sh4_pci_lock); + +/* + * Functions for accessing PCI configuration space with type 1 accesses + */ +static int sh4_pci_read(struct pci_bus *bus, unsigned int devfn, + int where, int size, u32 *val) +{ + unsigned long flags; + u32 data; + + /* + * PCIPDR may only be accessed as 32 bit words, + * so we must do byte alignment by hand + */ + spin_lock_irqsave(&sh4_pci_lock, flags); + pci_write_reg(CONFIG_CMD(bus, devfn, where), SH4_PCIPAR); + data = pci_read_reg(SH4_PCIPDR); + spin_unlock_irqrestore(&sh4_pci_lock, flags); + + switch (size) { + case 1: + *val = (data >> ((where & 3) << 3)) & 0xff; + break; + case 2: + *val = (data >> ((where & 2) << 3)) & 0xffff; + break; + case 4: + *val = data; + break; + default: + return PCIBIOS_FUNC_NOT_SUPPORTED; + } + + return PCIBIOS_SUCCESSFUL; +} + +/* + * Since SH4 only does 32bit access we'll have to do a read, + * mask,write operation. + * We'll allow an odd byte offset, though it should be illegal. + */ +static int sh4_pci_write(struct pci_bus *bus, unsigned int devfn, + int where, int size, u32 val) +{ + unsigned long flags; + int shift; + u32 data; + + spin_lock_irqsave(&sh4_pci_lock, flags); + pci_write_reg(CONFIG_CMD(bus, devfn, where), SH4_PCIPAR); + data = pci_read_reg(SH4_PCIPDR); + spin_unlock_irqrestore(&sh4_pci_lock, flags); + + switch (size) { + case 1: + shift = (where & 3) << 3; + data &= ~(0xff << shift); + data |= ((val & 0xff) << shift); + break; + case 2: + shift = (where & 2) << 3; + data &= ~(0xffff << shift); + data |= ((val & 0xffff) << shift); + break; + case 4: + data = val; + break; + default: + return PCIBIOS_FUNC_NOT_SUPPORTED; + } + + pci_write_reg(data, SH4_PCIPDR); + + return PCIBIOS_SUCCESSFUL; +} + +struct pci_ops sh4_pci_ops = { + .read = sh4_pci_read, + .write = sh4_pci_write, +}; + +/* + * Not really related to pci_ops, but it's common and not worth shoving + * somewhere else for now.. + */ +static unsigned int pci_probe = PCI_PROBE_CONF1; + +int __init sh4_pci_check_direct(void) +{ + /* + * Check if configuration works. + */ + if (pci_probe & PCI_PROBE_CONF1) { + unsigned int tmp = pci_read_reg(SH4_PCIPAR); + + pci_write_reg(P1SEG, SH4_PCIPAR); + + if (pci_read_reg(SH4_PCIPAR) == P1SEG) { + pci_write_reg(tmp, SH4_PCIPAR); + printk(KERN_INFO "PCI: Using configuration type 1\n"); + request_region(PCI_REG(SH4_PCIPAR), 8, "PCI conf1"); + + return 0; + } + + pci_write_reg(tmp, SH4_PCIPAR); + } + + pr_debug("PCI: pci_check_direct failed\n"); + return -EINVAL; +} + +/* Handle generic fixups */ +static void __init pci_fixup_ide_bases(struct pci_dev *d) +{ + int i; + + /* + * PCI IDE controllers use non-standard I/O port decoding, respect it. + */ + if ((d->class >> 8) != PCI_CLASS_STORAGE_IDE) + return; + pr_debug("PCI: IDE base address fixup for %s\n", pci_name(d)); + for(i = 0; i < 4; i++) { + struct resource *r = &d->resource[i]; + + if ((r->start & ~0x80) == 0x374) { + r->start |= 2; + r->end = r->start; + } + } +} +DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, pci_fixup_ide_bases); + +char * __init pcibios_setup(char *str) +{ + if (!strcmp(str, "off")) { + pci_probe = 0; + return NULL; + } + + return str; +} diff --git a/arch/sh/drivers/pci/ops-snapgear.c b/arch/sh/drivers/pci/ops-snapgear.c index 3cbd14dd28fe..53dd893d4e54 100644 --- a/arch/sh/drivers/pci/ops-snapgear.c +++ b/arch/sh/drivers/pci/ops-snapgear.c @@ -2,7 +2,7 @@ * arch/sh/drivers/pci/ops-snapgear.c * * Author: David McCullough - * + * * Ported to new API by Paul Mundt * * Highly leveraged from pci-bigsur.c, written by Dustin McIntire. @@ -12,15 +12,11 @@ * * PCI initialization for the SnapGear boards */ - #include #include #include -#include #include - -#include -#include "pci-sh7751.h" +#include "pci-sh4.h" #define SNAPGEAR_PCI_IO 0x4000 #define SNAPGEAR_PCI_MEM 0xfd000000 @@ -43,14 +39,12 @@ static struct resource sh7751_mem_resource = { .flags = IORESOURCE_MEM, }; -extern struct pci_ops sh7751_pci_ops; - struct pci_channel board_pci_channels[] = { - { &sh7751_pci_ops, &sh7751_io_resource, &sh7751_mem_resource, 0, 0xff }, + { &sh4_pci_ops, &sh7751_io_resource, &sh7751_mem_resource, 0, 0xff }, { 0, } }; -static struct sh7751_pci_address_map sh7751_pci_map = { +static struct sh4_pci_address_map sh7751_pci_map = { .window0 = { .base = SH7751_CS2_BASE_ADDR, .size = SNAPGEAR_LSR0_SIZE, @@ -61,11 +55,11 @@ static struct sh7751_pci_address_map sh7751_pci_map = { .size = SNAPGEAR_LSR1_SIZE, }, - .flags = SH7751_PCIC_NO_RESET, + .flags = SH4_PCIC_NO_RESET, }; /* - * Initialize the SnapGear PCI interface + * Initialize the SnapGear PCI interface * Setup hardware to be Central Funtion * Copy the BSR regs to the PCI interface * Setup PCI windows into local RAM @@ -75,7 +69,7 @@ int __init pcibios_init_platform(void) return sh7751_pcic_init(&sh7751_pci_map); } -int __init pcibios_map_platform_irq(u8 slot, u8 pin) +int __init pcibios_map_platform_irq(struct pci_dev *pdev, u8 slot, u8 pin) { int irq = -1; @@ -98,4 +92,3 @@ void __init pcibios_fixup(void) { /* Nothing to fixup .. */ } - diff --git a/arch/sh/drivers/pci/ops-titan.c b/arch/sh/drivers/pci/ops-titan.c index f76e4e963ac1..9c8b2027c35d 100644 --- a/arch/sh/drivers/pci/ops-titan.c +++ b/arch/sh/drivers/pci/ops-titan.c @@ -16,12 +16,11 @@ #include #include #include -#include #include #include -#include "pci-sh7751.h" +#include "pci-sh4.h" -int __init pcibios_map_platform_irq(u8 slot, u8 pin) +int __init pcibios_map_platform_irq(struct pci_dev *pdev, u8 slot, u8 pin) { int irq = -1; @@ -32,7 +31,8 @@ int __init pcibios_map_platform_irq(u8 slot, u8 pin) case 3: irq = TITAN_IRQ_MPCIB; break; /* mPCI B */ case 4: irq = TITAN_IRQ_USB; break; /* USB */ default: - printk(KERN_INFO "PCI: Bad IRQ mapping request for slot %d\n", slot); + printk(KERN_INFO "PCI: Bad IRQ mapping " + "request for slot %d\n", slot); return -1; } @@ -56,15 +56,13 @@ static struct resource sh7751_mem_resource = { .flags = IORESOURCE_MEM }; -extern struct pci_ops sh7751_pci_ops; - struct pci_channel board_pci_channels[] = { - { &sh7751_pci_ops, &sh7751_io_resource, &sh7751_mem_resource, 0, 0xff }, + { &sh4_pci_ops, &sh7751_io_resource, &sh7751_mem_resource, 0, 0xff }, { NULL, NULL, NULL, 0, 0 }, }; EXPORT_SYMBOL(board_pci_channels); -static struct sh7751_pci_address_map sh7751_pci_map = { +static struct sh4_pci_address_map sh7751_pci_map = { .window0 = { .base = SH7751_CS2_BASE_ADDR, .size = SH7751_MEM_REGION_SIZE*2, /* cs2 and cs3 */ @@ -75,7 +73,7 @@ static struct sh7751_pci_address_map sh7751_pci_map = { .size = SH7751_MEM_REGION_SIZE*2, }, - .flags = SH7751_PCIC_NO_RESET, + .flags = SH4_PCIC_NO_RESET, }; int __init pcibios_init_platform(void) diff --git a/arch/sh/drivers/pci/pci-auto.c b/arch/sh/drivers/pci/pci-auto.c index d55e46618549..ecf16344f94a 100644 --- a/arch/sh/drivers/pci/pci-auto.c +++ b/arch/sh/drivers/pci/pci-auto.c @@ -358,7 +358,6 @@ pciauto_postscan_setup_cardbus_bridge(struct pci_channel *hose, { u32 temp; -#if !defined(CONFIG_SH_HS7751RVOIP) && !defined(CONFIG_SH_RTS7751R2D) && !defined(CONFIG_SH_R7780RP) /* * [jsun] we always bump up baselines a little, so that if there * nothing behind P2P bridge, we don't wind up overlapping IO/MEM @@ -366,7 +365,6 @@ pciauto_postscan_setup_cardbus_bridge(struct pci_channel *hose, */ pciauto_lower_memspc += 1; pciauto_lower_iospc += 1; -#endif /* * Configure subordinate bus number. The PCI subsystem @@ -392,11 +390,6 @@ pciauto_postscan_setup_cardbus_bridge(struct pci_channel *hose, * configured by this routine to happily live behind a * P2P bridge in a system. */ -#if defined(CONFIG_SH_HS7751RVOIP) || defined(CONFIG_SH_RTS7751R2D) || defined(CONFIG_SH_R7780RP) - pciauto_lower_memspc += 0x00400000; - pciauto_lower_iospc += 0x00004000; -#endif - /* Align memory and I/O to 4KB and 4 byte boundaries. */ pciauto_lower_memspc = (pciauto_lower_memspc + (0x1000 - 1)) & ~(0x1000 - 1); @@ -467,9 +460,6 @@ pciauto_bus_scan(struct pci_channel *hose, int top_bus, int current_bus) if ((pci_class >> 16) == PCI_CLASS_BRIDGE_PCI) { DBG(" Bridge: primary=%.2x, secondary=%.2x\n", current_bus, sub_bus + 1); -#if defined(CONFIG_SH_HS7751RVOIP) || defined(CONFIG_SH_RTS7751R2D) || defined(CONFIG_SH_R7780RP) - pciauto_setup_bars(hose, top_bus, current_bus, pci_devfn, PCI_BASE_ADDRESS_1); -#endif pciauto_prescan_setup_bridge(hose, top_bus, current_bus, pci_devfn, sub_bus); DBG("Scanning sub bus %.2x, I/O 0x%.8x, Mem 0x%.8x\n", diff --git a/arch/sh/drivers/pci/pci-sh4.h b/arch/sh/drivers/pci/pci-sh4.h new file mode 100644 index 000000000000..5a61d6041f2c --- /dev/null +++ b/arch/sh/drivers/pci/pci-sh4.h @@ -0,0 +1,180 @@ +#ifndef __PCI_SH4_H +#define __PCI_SH4_H + +#ifdef CONFIG_CPU_SUBTYPE_SH7780 +#include "pci-sh7780.h" +#else +#include "pci-sh7751.h" +#endif + +#include + +/* startup values */ +#define PCI_PROBE_BIOS 1 +#define PCI_PROBE_CONF1 2 +#define PCI_PROBE_CONF2 4 +#define PCI_NO_SORT 0x100 +#define PCI_BIOS_SORT 0x200 +#define PCI_NO_CHECKS 0x400 +#define PCI_ASSIGN_ROMS 0x1000 +#define PCI_BIOS_IRQ_SCAN 0x2000 + +#define SH4_PCICR 0x100 /* PCI Control Register */ + #define SH4_PCICR_PREFIX 0xA5000000 /* CR prefix for write */ + #define SH4_PCICR_FTO 0x00000400 /* TRDY/IRDY Enable */ + #define SH4_PCICR_TRSB 0x00000200 /* Target Read Single */ + #define SH4_PCICR_BSWP 0x00000100 /* Target Byte Swap */ + #define SH4_PCICR_PLUP 0x00000080 /* Enable PCI Pullup */ + #define SH4_PCICR_ARBM 0x00000040 /* PCI Arbitration Mode */ + #define SH4_PCICR_MD 0x00000030 /* MD9 and MD10 status */ + #define SH4_PCICR_SERR 0x00000008 /* SERR output assert */ + #define SH4_PCICR_INTA 0x00000004 /* INTA output assert */ + #define SH4_PCICR_PRST 0x00000002 /* PCI Reset Assert */ + #define SH4_PCICR_CFIN 0x00000001 /* Central Fun. Init Done */ +#define SH4_PCILSR0 0x104 /* PCI Local Space Register0 */ +#define SH4_PCILSR1 0x108 /* PCI Local Space Register1 */ +#define SH4_PCILAR0 0x10C /* PCI Local Addr Register1 */ +#define SH4_PCILAR1 0x110 /* PCI Local Addr Register1 */ +#define SH4_PCIINT 0x114 /* PCI Interrupt Register */ + #define SH4_PCIINT_MLCK 0x00008000 /* Master Lock Error */ + #define SH4_PCIINT_TABT 0x00004000 /* Target Abort Error */ + #define SH4_PCIINT_TRET 0x00000200 /* Target Retry Error */ + #define SH4_PCIINT_MFDE 0x00000100 /* Master Func. Disable Error */ + #define SH4_PCIINT_PRTY 0x00000080 /* Address Parity Error */ + #define SH4_PCIINT_SERR 0x00000040 /* SERR Detection Error */ + #define SH4_PCIINT_TWDP 0x00000020 /* Tgt. Write Parity Error */ + #define SH4_PCIINT_TRDP 0x00000010 /* Tgt. Read Parity Err Det. */ + #define SH4_PCIINT_MTABT 0x00000008 /* Master-Tgt. Abort Error */ + #define SH4_PCIINT_MMABT 0x00000004 /* Master-Master Abort Error */ + #define SH4_PCIINT_MWPD 0x00000002 /* Master Write PERR Detect */ + #define SH4_PCIINT_MRPD 0x00000001 /* Master Read PERR Detect */ +#define SH4_PCIINTM 0x118 /* PCI Interrupt Mask */ +#define SH4_PCIALR 0x11C /* Error Address Register */ +#define SH4_PCICLR 0x120 /* Error Command/Data */ + #define SH4_PCICLR_MPIO 0x80000000 + #define SH4_PCICLR_MDMA0 0x40000000 /* DMA0 Transfer Error */ + #define SH4_PCICLR_MDMA1 0x20000000 /* DMA1 Transfer Error */ + #define SH4_PCICLR_MDMA2 0x10000000 /* DMA2 Transfer Error */ + #define SH4_PCICLR_MDMA3 0x08000000 /* DMA3 Transfer Error */ + #define SH4_PCICLR_TGT 0x04000000 /* Target Transfer Error */ + #define SH4_PCICLR_CMDL 0x0000000F /* PCI Command at Error */ +#define SH4_PCIAINT 0x130 /* Arbiter Interrupt Register */ + #define SH4_PCIAINT_MBKN 0x00002000 /* Master Broken Interrupt */ + #define SH4_PCIAINT_TBTO 0x00001000 /* Target Bus Time Out */ + #define SH4_PCIAINT_MBTO 0x00001000 /* Master Bus Time Out */ + #define SH4_PCIAINT_TABT 0x00000008 /* Target Abort */ + #define SH4_PCIAINT_MABT 0x00000004 /* Master Abort */ + #define SH4_PCIAINT_RDPE 0x00000002 /* Read Data Parity Error */ + #define SH4_PCIAINT_WDPE 0x00000001 /* Write Data Parity Error */ +#define SH4_PCIAINTM 0x134 /* Arbiter Int. Mask Register */ +#define SH4_PCIBMLR 0x138 /* Error Bus Master Register */ + #define SH4_PCIBMLR_REQ4 0x00000010 /* REQ4 bus master at error */ + #define SH4_PCIBMLR_REQ3 0x00000008 /* REQ3 bus master at error */ + #define SH4_PCIBMLR_REQ2 0x00000004 /* REQ2 bus master at error */ + #define SH4_PCIBMLR_REQ1 0x00000002 /* REQ1 bus master at error */ + #define SH4_PCIBMLR_REQ0 0x00000001 /* REQ0 bus master at error */ +#define SH4_PCIDMABT 0x140 /* DMA Transfer Arb. Register */ + #define SH4_PCIDMABT_RRBN 0x00000001 /* DMA Arbitor Round-Robin */ +#define SH4_PCIDPA0 0x180 /* DMA0 Transfer Addr. */ +#define SH4_PCIDLA0 0x184 /* DMA0 Local Addr. */ +#define SH4_PCIDTC0 0x188 /* DMA0 Transfer Cnt. */ +#define SH4_PCIDCR0 0x18C /* DMA0 Control Register */ + #define SH4_PCIDCR_ALGN 0x00000600 /* DMA Alignment Mode */ + #define SH4_PCIDCR_MAST 0x00000100 /* DMA Termination Type */ + #define SH4_PCIDCR_INTM 0x00000080 /* DMA Interrupt Done Mask*/ + #define SH4_PCIDCR_INTS 0x00000040 /* DMA Interrupt Done Status */ + #define SH4_PCIDCR_LHLD 0x00000020 /* Local Address Control */ + #define SH4_PCIDCR_PHLD 0x00000010 /* PCI Address Control*/ + #define SH4_PCIDCR_IOSEL 0x00000008 /* PCI Address Space Type */ + #define SH4_PCIDCR_DIR 0x00000004 /* DMA Transfer Direction */ + #define SH4_PCIDCR_STOP 0x00000002 /* Force DMA Stop */ + #define SH4_PCIDCR_STRT 0x00000001 /* DMA Start */ +#define SH4_PCIDPA1 0x190 /* DMA1 Transfer Addr. */ +#define SH4_PCIDLA1 0x194 /* DMA1 Local Addr. */ +#define SH4_PCIDTC1 0x198 /* DMA1 Transfer Cnt. */ +#define SH4_PCIDCR1 0x19C /* DMA1 Control Register */ +#define SH4_PCIDPA2 0x1A0 /* DMA2 Transfer Addr. */ +#define SH4_PCIDLA2 0x1A4 /* DMA2 Local Addr. */ +#define SH4_PCIDTC2 0x1A8 /* DMA2 Transfer Cnt. */ +#define SH4_PCIDCR2 0x1AC /* DMA2 Control Register */ +#define SH4_PCIDPA3 0x1B0 /* DMA3 Transfer Addr. */ +#define SH4_PCIDLA3 0x1B4 /* DMA3 Local Addr. */ +#define SH4_PCIDTC3 0x1B8 /* DMA3 Transfer Cnt. */ +#define SH4_PCIDCR3 0x1BC /* DMA3 Control Register */ +#define SH4_PCIPAR 0x1C0 /* PIO Address Register */ + #define SH4_PCIPAR_CFGEN 0x80000000 /* Configuration Enable */ + #define SH4_PCIPAR_BUSNO 0x00FF0000 /* Config. Bus Number */ + #define SH4_PCIPAR_DEVNO 0x0000FF00 /* Config. Device Number */ + #define SH4_PCIPAR_REGAD 0x000000FC /* Register Address Number */ +#define SH4_PCIMBR 0x1C4 /* Memory Base Address */ + #define SH4_PCIMBR_MASK 0xFF000000 /* Memory Space Mask */ + #define SH4_PCIMBR_LOCK 0x00000001 /* Lock Memory Space */ +#define SH4_PCIIOBR 0x1C8 /* I/O Base Address Register */ + #define SH4_PCIIOBR_MASK 0xFFFC0000 /* IO Space Mask */ + #define SH4_PCIIOBR_LOCK 0x00000001 /* Lock IO Space */ +#define SH4_PCIPINT 0x1CC /* Power Mgmnt Int. Register */ + #define SH4_PCIPINT_D3 0x00000002 /* D3 Pwr Mgmt. Interrupt */ + #define SH4_PCIPINT_D0 0x00000001 /* D0 Pwr Mgmt. Interrupt */ +#define SH4_PCIPINTM 0x1D0 /* Power Mgmnt Mask Register */ +#define SH4_PCICLKR 0x1D4 /* Clock Ctrl. Register */ + #define SH4_PCICLKR_PCSTP 0x00000002 /* PCI Clock Stop */ + #define SH4_PCICLKR_BCSTP 0x00000001 /* BCLK Clock Stop */ +/* For definitions of BCR, MCR see ... */ +#define SH4_PCIBCR1 0x1E0 /* Memory BCR1 Register */ + #define SH4_PCIMBR0 SH4_PCIBCR1 +#define SH4_PCIBCR2 0x1E4 /* Memory BCR2 Register */ + #define SH4_PCIMBMR0 SH4_PCIBCR2 +#define SH4_PCIWCR1 0x1E8 /* Wait Control 1 Register */ +#define SH4_PCIWCR2 0x1EC /* Wait Control 2 Register */ +#define SH4_PCIWCR3 0x1F0 /* Wait Control 3 Register */ + #define SH4_PCIMBR2 SH4_PCIWCR3 +#define SH4_PCIMCR 0x1F4 /* Memory Control Register */ +#define SH4_PCIBCR3 0x1f8 /* Memory BCR3 Register */ +#define SH4_PCIPCTR 0x200 /* Port Control Register */ + #define SH4_PCIPCTR_P2EN 0x000400000 /* Port 2 Enable */ + #define SH4_PCIPCTR_P1EN 0x000200000 /* Port 1 Enable */ + #define SH4_PCIPCTR_P0EN 0x000100000 /* Port 0 Enable */ + #define SH4_PCIPCTR_P2UP 0x000000020 /* Port2 Pull Up Enable */ + #define SH4_PCIPCTR_P2IO 0x000000010 /* Port2 Output Enable */ + #define SH4_PCIPCTR_P1UP 0x000000008 /* Port1 Pull Up Enable */ + #define SH4_PCIPCTR_P1IO 0x000000004 /* Port1 Output Enable */ + #define SH4_PCIPCTR_P0UP 0x000000002 /* Port0 Pull Up Enable */ + #define SH4_PCIPCTR_P0IO 0x000000001 /* Port0 Output Enable */ +#define SH4_PCIPDTR 0x204 /* Port Data Register */ + #define SH4_PCIPDTR_PB5 0x000000020 /* Port 5 Enable */ + #define SH4_PCIPDTR_PB4 0x000000010 /* Port 4 Enable */ + #define SH4_PCIPDTR_PB3 0x000000008 /* Port 3 Enable */ + #define SH4_PCIPDTR_PB2 0x000000004 /* Port 2 Enable */ + #define SH4_PCIPDTR_PB1 0x000000002 /* Port 1 Enable */ + #define SH4_PCIPDTR_PB0 0x000000001 /* Port 0 Enable */ +#define SH4_PCIPDR 0x220 /* Port IO Data Register */ + +/* Flags */ +#define SH4_PCIC_NO_RESET 0x0001 + +/* arch/sh/kernel/drivers/pci/ops-sh4.c */ +extern struct pci_ops sh4_pci_ops; +int sh4_pci_check_direct(void); +int pci_fixup_pcic(void); + +struct sh4_pci_address_space { + unsigned long base; + unsigned long size; +}; + +struct sh4_pci_address_map { + struct sh4_pci_address_space window0; + struct sh4_pci_address_space window1; + unsigned long flags; +}; + +static inline void pci_write_reg(unsigned long val, unsigned long reg) +{ + outl(val, PCI_REG(reg)); +} + +static inline unsigned long pci_read_reg(unsigned long reg) +{ + return inl(PCI_REG(reg)); +} +#endif /* __PCI_SH4_H */ diff --git a/arch/sh/drivers/pci/pci-sh7751.c b/arch/sh/drivers/pci/pci-sh7751.c index 65093ec1b55e..dbe837884983 100644 --- a/arch/sh/drivers/pci/pci-sh7751.c +++ b/arch/sh/drivers/pci/pci-sh7751.c @@ -15,180 +15,14 @@ #undef DEBUG -#include -#include #include #include -#include -#include +#include #include -#include #include - -#include +#include "pci-sh4.h" +#include #include -#include "pci-sh7751.h" - -static unsigned int pci_probe = PCI_PROBE_CONF1; -extern int pci_fixup_pcic(void); - -void pcibios_fixup_irqs(void) __attribute__ ((weak)); - -/* - * Direct access to PCI hardware... - */ - -#define CONFIG_CMD(bus, devfn, where) (0x80000000 | (bus->number << 16) | (devfn << 8) | (where & ~3)) - -/* - * Functions for accessing PCI configuration space with type 1 accesses - */ -static int sh7751_pci_read(struct pci_bus *bus, unsigned int devfn, - int where, int size, u32 *val) -{ - unsigned long flags; - u32 data; - - /* - * PCIPDR may only be accessed as 32 bit words, - * so we must do byte alignment by hand - */ - local_irq_save(flags); - outl(CONFIG_CMD(bus,devfn,where), PCI_REG(SH7751_PCIPAR)); - data = inl(PCI_REG(SH7751_PCIPDR)); - local_irq_restore(flags); - - switch (size) { - case 1: - *val = (data >> ((where & 3) << 3)) & 0xff; - break; - case 2: - *val = (data >> ((where & 2) << 3)) & 0xffff; - break; - case 4: - *val = data; - break; - default: - return PCIBIOS_FUNC_NOT_SUPPORTED; - } - - return PCIBIOS_SUCCESSFUL; -} - -/* - * Since SH7751 only does 32bit access we'll have to do a read, - * mask,write operation. - * We'll allow an odd byte offset, though it should be illegal. - */ -static int sh7751_pci_write(struct pci_bus *bus, unsigned int devfn, - int where, int size, u32 val) -{ - unsigned long flags; - int shift; - u32 data; - - local_irq_save(flags); - outl(CONFIG_CMD(bus,devfn,where), PCI_REG(SH7751_PCIPAR)); - data = inl(PCI_REG(SH7751_PCIPDR)); - local_irq_restore(flags); - - switch (size) { - case 1: - shift = (where & 3) << 3; - data &= ~(0xff << shift); - data |= ((val & 0xff) << shift); - break; - case 2: - shift = (where & 2) << 3; - data &= ~(0xffff << shift); - data |= ((val & 0xffff) << shift); - break; - case 4: - data = val; - break; - default: - return PCIBIOS_FUNC_NOT_SUPPORTED; - } - - outl(data, PCI_REG(SH7751_PCIPDR)); - - return PCIBIOS_SUCCESSFUL; -} - -#undef CONFIG_CMD - -struct pci_ops sh7751_pci_ops = { - .read = sh7751_pci_read, - .write = sh7751_pci_write, -}; - -static int __init pci_check_direct(void) -{ - unsigned int tmp, id; - - /* check for SH7751/SH7751R hardware */ - id = inl(SH7751_PCIREG_BASE+SH7751_PCICONF0); - if (id != ((SH7751_DEVICE_ID << 16) | SH7751_VENDOR_ID) && - id != ((SH7751R_DEVICE_ID << 16) | SH7751_VENDOR_ID)) { - pr_debug("PCI: This is not an SH7751(R) (%x)\n", id); - return -ENODEV; - } - - /* - * Check if configuration works. - */ - if (pci_probe & PCI_PROBE_CONF1) { - tmp = inl (PCI_REG(SH7751_PCIPAR)); - outl (0x80000000, PCI_REG(SH7751_PCIPAR)); - if (inl (PCI_REG(SH7751_PCIPAR)) == 0x80000000) { - outl (tmp, PCI_REG(SH7751_PCIPAR)); - printk(KERN_INFO "PCI: Using configuration type 1\n"); - request_region(PCI_REG(SH7751_PCIPAR), 8, "PCI conf1"); - return 0; - } - outl (tmp, PCI_REG(SH7751_PCIPAR)); - } - - pr_debug("PCI: pci_check_direct failed\n"); - return -EINVAL; -} - -/***************************************************************************************/ - -/* - * Handle bus scanning and fixups .... - */ - -static void __init pci_fixup_ide_bases(struct pci_dev *d) -{ - int i; - - /* - * PCI IDE controllers use non-standard I/O port decoding, respect it. - */ - if ((d->class >> 8) != PCI_CLASS_STORAGE_IDE) - return; - pr_debug("PCI: IDE base address fixup for %s\n", pci_name(d)); - for(i=0; i<4; i++) { - struct resource *r = &d->resource[i]; - if ((r->start & ~0x80) == 0x374) { - r->start |= 2; - r->end = r->start; - } - } -} - -DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, pci_fixup_ide_bases); - -/* - * Called after each bus is probed, but before its children - * are examined. - */ - -void __init pcibios_fixup_bus(struct pci_bus *b) -{ - pci_read_bridge_bases(b); -} /* * Initialization. Try all known PCI access methods. Note that we support @@ -196,25 +30,29 @@ void __init pcibios_fixup_bus(struct pci_bus *b) * to access config space. * * Note that the platform specific initialization (BSC registers, and memory - * space mapping) will be called via the machine vectors (sh_mv.mv_pci_init()) if it - * exitst and via the platform defined function pcibios_init_platform(). - * See pci_bigsur.c for implementation; - * - * The BIOS version of the pci functions is not yet implemented but it is left - * in for completeness. Currently an error will be genereated at compile time. + * space mapping) will be called via the platform defined function + * pcibios_init_platform(). */ - static int __init sh7751_pci_init(void) { + unsigned int id; int ret; pr_debug("PCI: Starting intialization.\n"); - if ((ret = pci_check_direct()) != 0) + + /* check for SH7751/SH7751R hardware */ + id = pci_read_reg(SH7751_PCICONF0); + if (id != ((SH7751_DEVICE_ID << 16) | SH7751_VENDOR_ID) && + id != ((SH7751R_DEVICE_ID << 16) | SH7751_VENDOR_ID)) { + pr_debug("PCI: This is not an SH7751(R) (%x)\n", id); + return -ENODEV; + } + + if ((ret = sh4_pci_check_direct()) != 0) return ret; return pcibios_init_platform(); } - subsys_initcall(sh7751_pci_init); static int __init __area_sdram_check(unsigned int area) @@ -228,7 +66,7 @@ static int __init __area_sdram_check(unsigned int area) area, word); return 0; } - outl(word, PCI_REG(SH7751_PCIBCR1)); + pci_write_reg(word, SH4_PCIBCR1); word = (u16)inw(SH7751_BCR2); /* check BCR2 for 32bit SDRAM interface*/ @@ -237,12 +75,12 @@ static int __init __area_sdram_check(unsigned int area) area, word); return 0; } - outl(word, PCI_REG(SH7751_PCIBCR2)); + pci_write_reg(word, SH4_PCIBCR2); return 1; } -int __init sh7751_pcic_init(struct sh7751_pci_address_map *map) +int __init sh7751_pcic_init(struct sh4_pci_address_map *map) { u32 reg; u32 word; @@ -251,39 +89,39 @@ int __init sh7751_pcic_init(struct sh7751_pci_address_map *map) reg = inl(SH7751_BCR1); reg |= 0x80000; outl(reg, SH7751_BCR1); - + /* Turn the clocks back on (not done in reset)*/ - outl(0, PCI_REG(SH7751_PCICLKR)); + pci_write_reg(0, SH4_PCICLKR); /* Clear Powerdown IRQ's (not done in reset) */ - word = SH7751_PCIPINT_D3 | SH7751_PCIPINT_D0; - outl(word, PCI_REG(SH7751_PCIPINT)); + word = SH4_PCIPINT_D3 | SH4_PCIPINT_D0; + pci_write_reg(word, SH4_PCIPINT); /* * This code is unused for some boards as it is done in the * bootloader and doing it here means the MAC addresses loaded * by the bootloader get lost. */ - if (!(map->flags & SH7751_PCIC_NO_RESET)) { + if (!(map->flags & SH4_PCIC_NO_RESET)) { /* toggle PCI reset pin */ - word = SH7751_PCICR_PREFIX | SH7751_PCICR_PRST; - outl(word,PCI_REG(SH7751_PCICR)); + word = SH4_PCICR_PREFIX | SH4_PCICR_PRST; + pci_write_reg(word, SH4_PCICR); /* Wait for a long time... not 1 sec. but long enough */ mdelay(100); - word = SH7751_PCICR_PREFIX; - outl(word,PCI_REG(SH7751_PCICR)); + word = SH4_PCICR_PREFIX; + pci_write_reg(word, SH4_PCICR); } - + /* set the command/status bits to: * Wait Cycle Control + Parity Enable + Bus Master + * Mem space enable */ word = SH7751_PCICONF1_WCC | SH7751_PCICONF1_PER | SH7751_PCICONF1_BUM | SH7751_PCICONF1_MES; - outl(word, PCI_REG(SH7751_PCICONF1)); + pci_write_reg(word, SH7751_PCICONF1); /* define this host as the host bridge */ - word = SH7751_PCI_HOST_BRIDGE << 24; - outl(word, PCI_REG(SH7751_PCICONF2)); + word = PCI_BASE_CLASS_BRIDGE << 24; + pci_write_reg(word, SH7751_PCICONF2); /* Set IO and Mem windows to local address * Make PCI and local address the same for easy 1 to 1 mapping @@ -291,46 +129,49 @@ int __init sh7751_pcic_init(struct sh7751_pci_address_map *map) * Window1 = map->window1.size @ cached area base = SDRAM */ word = map->window0.size - 1; - outl(word, PCI_REG(SH7751_PCILSR0)); + pci_write_reg(word, SH4_PCILSR0); word = map->window1.size - 1; - outl(word, PCI_REG(SH7751_PCILSR1)); + pci_write_reg(word, SH4_PCILSR1); /* Set the values on window 0 PCI config registers */ word = P2SEGADDR(map->window0.base); - outl(word, PCI_REG(SH7751_PCILAR0)); - outl(word, PCI_REG(SH7751_PCICONF5)); + pci_write_reg(word, SH4_PCILAR0); + pci_write_reg(word, SH7751_PCICONF5); /* Set the values on window 1 PCI config registers */ word = PHYSADDR(map->window1.base); - outl(word, PCI_REG(SH7751_PCILAR1)); - outl(word, PCI_REG(SH7751_PCICONF6)); + pci_write_reg(word, SH4_PCILAR1); + pci_write_reg(word, SH7751_PCICONF6); - /* Set the local 16MB PCI memory space window to + /* Set the local 16MB PCI memory space window to * the lowest PCI mapped address */ - word = PCIBIOS_MIN_MEM & SH7751_PCIMBR_MASK; - PCIDBG(2,"PCI: Setting upper bits of Memory window to 0x%x\n", word); - outl(word , PCI_REG(SH7751_PCIMBR)); + word = PCIBIOS_MIN_MEM & SH4_PCIMBR_MASK; + pr_debug("PCI: Setting upper bits of Memory window to 0x%x\n", word); + pci_write_reg(word , SH4_PCIMBR); /* Map IO space into PCI IO window * The IO window is 64K-PCIBIOS_MIN_IO in size - * IO addresses will be translated to the + * IO addresses will be translated to the * PCI IO window base address */ - PCIDBG(3,"PCI: Mapping IO address 0x%x - 0x%x to base 0x%x\n", PCIBIOS_MIN_IO, - (64*1024), SH7751_PCI_IO_BASE+PCIBIOS_MIN_IO); + pr_debug("PCI: Mapping IO address 0x%x - 0x%x to base 0x%x\n", + PCIBIOS_MIN_IO, (64 << 10), + SH4_PCI_IO_BASE + PCIBIOS_MIN_IO); - /* + /* * XXX: For now, leave this board-specific. In the event we have other * boards that need to do similar work, this can be wrapped. */ #ifdef CONFIG_SH_BIGSUR - bigsur_port_map(PCIBIOS_MIN_IO, (64*1024), SH7751_PCI_IO_BASE+PCIBIOS_MIN_IO,0); + bigsur_port_map(PCIBIOS_MIN_IO, (64 << 10), + SH4_PCI_IO_BASE + PCIBIOS_MIN_IO, 0); #endif - /* Make sure the MSB's of IO window are set to access PCI space correctly */ - word = PCIBIOS_MIN_IO & SH7751_PCIIOBR_MASK; - PCIDBG(2,"PCI: Setting upper bits of IO window to 0x%x\n", word); - outl(word, PCI_REG(SH7751_PCIIOBR)); - + /* Make sure the MSB's of IO window are set to access PCI space + * correctly */ + word = PCIBIOS_MIN_IO & SH4_PCIIOBR_MASK; + pr_debug("PCI: Setting upper bits of IO window to 0x%x\n", word); + pci_write_reg(word, SH4_PCIIOBR); + /* Set PCI WCRx, BCRx's, copy from BSC locations */ /* check BCR for SDRAM in specified area */ @@ -349,13 +190,13 @@ int __init sh7751_pcic_init(struct sh7751_pci_address_map *map) /* configure the wait control registers */ word = inl(SH7751_WCR1); - outl(word, PCI_REG(SH7751_PCIWCR1)); + pci_write_reg(word, SH4_PCIWCR1); word = inl(SH7751_WCR2); - outl(word, PCI_REG(SH7751_PCIWCR2)); + pci_write_reg(word, SH4_PCIWCR2); word = inl(SH7751_WCR3); - outl(word, PCI_REG(SH7751_PCIWCR3)); + pci_write_reg(word, SH4_PCIWCR3); word = inl(SH7751_MCR); - outl(word, PCI_REG(SH7751_PCIMCR)); + pci_write_reg(word, SH4_PCIMCR); /* NOTE: I'm ignoring the PCI error IRQs for now.. * TODO: add support for the internal error interrupts and @@ -368,49 +209,8 @@ int __init sh7751_pcic_init(struct sh7751_pci_address_map *map) /* SH7751 init done, set central function init complete */ /* use round robin mode to stop a device starving/overruning */ - word = SH7751_PCICR_PREFIX | SH7751_PCICR_CFIN | SH7751_PCICR_ARBM; - outl(word,PCI_REG(SH7751_PCICR)); + word = SH4_PCICR_PREFIX | SH4_PCICR_CFIN | SH4_PCICR_ARBM; + pci_write_reg(word, SH4_PCICR); return 1; } - -char * __init pcibios_setup(char *str) -{ - if (!strcmp(str, "off")) { - pci_probe = 0; - return NULL; - } - - return str; -} - -/* - * IRQ functions - */ -static u8 __init sh7751_no_swizzle(struct pci_dev *dev, u8 *pin) -{ - /* no swizzling */ - return PCI_SLOT(dev->devfn); -} - -static int sh7751_pci_lookup_irq(struct pci_dev *dev, u8 slot, u8 pin) -{ - int irq = -1; - - /* now lookup the actual IRQ on a platform specific basis (pci-'platform'.c) */ - irq = pcibios_map_platform_irq(slot,pin); - if( irq < 0 ) { - pr_debug("PCI: Error mapping IRQ on device %s\n", pci_name(dev)); - return irq; - } - - pr_debug("Setting IRQ for slot %s to %d\n", pci_name(dev), irq); - - return irq; -} - -void __init pcibios_fixup_irqs(void) -{ - pci_fixup_irqs(sh7751_no_swizzle, sh7751_pci_lookup_irq); -} - diff --git a/arch/sh/drivers/pci/pci-sh7751.h b/arch/sh/drivers/pci/pci-sh7751.h index 1fee5cae10d1..68e3cb5e6bec 100644 --- a/arch/sh/drivers/pci/pci-sh7751.h +++ b/arch/sh/drivers/pci/pci-sh7751.h @@ -3,7 +3,7 @@ * * Dustin McIntire (dustin@sensoria.com) (c) 2001 * Paul Mundt (lethal@linux-sh.org) (c) 2003 - * + * * May be copied or modified under the terms of the GNU General Public * License. See linux/COPYING for more information. * @@ -12,28 +12,6 @@ #ifndef _PCI_SH7751_H_ #define _PCI_SH7751_H_ -#include - -/* set debug level 4=verbose...1=terse */ -//#define DEBUG_PCI 3 -#undef DEBUG_PCI - -#ifdef DEBUG_PCI -#define PCIDBG(n, x...) { if(DEBUG_PCI>=n) printk(x); } -#else -#define PCIDBG(n, x...) -#endif - -/* startup values */ -#define PCI_PROBE_BIOS 1 -#define PCI_PROBE_CONF1 2 -#define PCI_PROBE_CONF2 4 -#define PCI_NO_SORT 0x100 -#define PCI_BIOS_SORT 0x200 -#define PCI_NO_CHECKS 0x400 -#define PCI_ASSIGN_ROMS 0x1000 -#define PCI_BIOS_IRQ_SCAN 0x2000 - /* Platform Specific Values */ #define SH7751_VENDOR_ID 0x1054 #define SH7751_DEVICE_ID 0x3505 @@ -128,131 +106,6 @@ #define SH7751_PCICONF17_PMEN 0x00010000 /* PME Enable */ #define SH7751_PCICONF17_PWST 0x00000003 /* Power State */ /* SH7715 Internal PCI Registers */ -#define SH7751_PCICR 0x100 /* PCI Control Register */ - #define SH7751_PCICR_PREFIX 0xA5000000 /* CR prefix for write */ - #define SH7751_PCICR_TRSB 0x00000200 /* Target Read Single */ - #define SH7751_PCICR_BSWP 0x00000100 /* Target Byte Swap */ - #define SH7751_PCICR_PLUP 0x00000080 /* Enable PCI Pullup */ - #define SH7751_PCICR_ARBM 0x00000040 /* PCI Arbitration Mode */ - #define SH7751_PCICR_MD 0x00000030 /* MD9 and MD10 status */ - #define SH7751_PCICR_SERR 0x00000008 /* SERR output assert */ - #define SH7751_PCICR_INTA 0x00000004 /* INTA output assert */ - #define SH7751_PCICR_PRST 0x00000002 /* PCI Reset Assert */ - #define SH7751_PCICR_CFIN 0x00000001 /* Central Fun. Init Done */ -#define SH7751_PCILSR0 0x104 /* PCI Local Space Register0 */ -#define SH7751_PCILSR1 0x108 /* PCI Local Space Register1 */ -#define SH7751_PCILAR0 0x10C /* PCI Local Address Register1 */ -#define SH7751_PCILAR1 0x110 /* PCI Local Address Register1 */ -#define SH7751_PCIINT 0x114 /* PCI Interrupt Register */ - #define SH7751_PCIINT_MLCK 0x00008000 /* Master Lock Error */ - #define SH7751_PCIINT_TABT 0x00004000 /* Target Abort Error */ - #define SH7751_PCIINT_TRET 0x00000200 /* Target Retry Error */ - #define SH7751_PCIINT_MFDE 0x00000100 /* Master Func. Disable Error */ - #define SH7751_PCIINT_PRTY 0x00000080 /* Address Parity Error */ - #define SH7751_PCIINT_SERR 0x00000040 /* SERR Detection Error */ - #define SH7751_PCIINT_TWDP 0x00000020 /* Tgt. Write Parity Error */ - #define SH7751_PCIINT_TRDP 0x00000010 /* Tgt. Read Parity Error Det. */ - #define SH7751_PCIINT_MTABT 0x00000008 /* Master-Tgt. Abort Error */ - #define SH7751_PCIINT_MMABT 0x00000004 /* Master-Master Abort Error */ - #define SH7751_PCIINT_MWPD 0x00000002 /* Master Write PERR Detect */ - #define SH7751_PCIINT_MRPD 0x00000002 /* Master Read PERR Detect */ -#define SH7751_PCIINTM 0x118 /* PCI Interrupt Mask Register */ -#define SH7751_PCIALR 0x11C /* Error Address Register */ -#define SH7751_PCICLR 0x120 /* Error Command/Data Register */ - #define SH7751_PCICLR_MPIO 0x80000000 /* Error Command/Data Register */ - #define SH7751_PCICLR_MDMA0 0x40000000 /* DMA0 Transfer Error */ - #define SH7751_PCICLR_MDMA1 0x20000000 /* DMA1 Transfer Error */ - #define SH7751_PCICLR_MDMA2 0x10000000 /* DMA2 Transfer Error */ - #define SH7751_PCICLR_MDMA3 0x08000000 /* DMA3 Transfer Error */ - #define SH7751_PCICLR_TGT 0x04000000 /* Target Transfer Error */ - #define SH7751_PCICLR_CMDL 0x0000000F /* PCI Command at Error */ -#define SH7751_PCIAINT 0x130 /* Arbiter Interrupt Register */ - #define SH7751_PCIAINT_MBKN 0x00002000 /* Master Broken Interrupt */ - #define SH7751_PCIAINT_TBTO 0x00001000 /* Target Bus Time Out */ - #define SH7751_PCIAINT_MBTO 0x00001000 /* Master Bus Time Out */ - #define SH7751_PCIAINT_TABT 0x00000008 /* Target Abort */ - #define SH7751_PCIAINT_MABT 0x00000004 /* Master Abort */ - #define SH7751_PCIAINT_RDPE 0x00000002 /* Read Data Parity Error */ - #define SH7751_PCIAINT_WDPE 0x00000002 /* Write Data Parity Error */ -#define SH7751_PCIAINTM 0x134 /* Arbiter Int. Mask Register */ -#define SH7751_PCIBMLR 0x138 /* Error Bus Master Register */ - #define SH7751_PCIBMLR_REQ4 0x00000010 /* REQ4 bus master at error */ - #define SH7751_PCIBMLR_REQ3 0x00000008 /* REQ3 bus master at error */ - #define SH7751_PCIBMLR_REQ2 0x00000004 /* REQ2 bus master at error */ - #define SH7751_PCIBMLR_REQ1 0x00000002 /* REQ1 bus master at error */ - #define SH7751_PCIBMLR_REQ0 0x00000001 /* REQ0 bus master at error */ -#define SH7751_PCIDMABT 0x140 /* DMA Transfer Arb. Register */ - #define SH7751_PCIDMABT_RRBN 0x00000001 /* DMA Arbitor Round-Robin */ -#define SH7751_PCIDPA0 0x180 /* DMA0 Transfer Addr. Register */ -#define SH7751_PCIDLA0 0x184 /* DMA0 Local Addr. Register */ -#define SH7751_PCIDTC0 0x188 /* DMA0 Transfer Cnt. Register */ -#define SH7751_PCIDCR0 0x18C /* DMA0 Control Register */ - #define SH7751_PCIDCR_ALGN 0x00000600 /* DMA Alignment Mode */ - #define SH7751_PCIDCR_MAST 0x00000100 /* DMA Termination Type */ - #define SH7751_PCIDCR_INTM 0x00000080 /* DMA Interrupt Done Mask*/ - #define SH7751_PCIDCR_INTS 0x00000040 /* DMA Interrupt Done Status */ - #define SH7751_PCIDCR_LHLD 0x00000020 /* Local Address Control */ - #define SH7751_PCIDCR_PHLD 0x00000010 /* PCI Address Control*/ - #define SH7751_PCIDCR_IOSEL 0x00000008 /* PCI Address Space Type */ - #define SH7751_PCIDCR_DIR 0x00000004 /* DMA Transfer Direction */ - #define SH7751_PCIDCR_STOP 0x00000002 /* Force DMA Stop */ - #define SH7751_PCIDCR_STRT 0x00000001 /* DMA Start */ -#define SH7751_PCIDPA1 0x190 /* DMA1 Transfer Addr. Register */ -#define SH7751_PCIDLA1 0x194 /* DMA1 Local Addr. Register */ -#define SH7751_PCIDTC1 0x198 /* DMA1 Transfer Cnt. Register */ -#define SH7751_PCIDCR1 0x19C /* DMA1 Control Register */ -#define SH7751_PCIDPA2 0x1A0 /* DMA2 Transfer Addr. Register */ -#define SH7751_PCIDLA2 0x1A4 /* DMA2 Local Addr. Register */ -#define SH7751_PCIDTC2 0x1A8 /* DMA2 Transfer Cnt. Register */ -#define SH7751_PCIDCR2 0x1AC /* DMA2 Control Register */ -#define SH7751_PCIDPA3 0x1B0 /* DMA3 Transfer Addr. Register */ -#define SH7751_PCIDLA3 0x1B4 /* DMA3 Local Addr. Register */ -#define SH7751_PCIDTC3 0x1B8 /* DMA3 Transfer Cnt. Register */ -#define SH7751_PCIDCR3 0x1BC /* DMA3 Control Register */ -#define SH7751_PCIPAR 0x1C0 /* PIO Address Register */ - #define SH7751_PCIPAR_CFGEN 0x80000000 /* Configuration Enable */ - #define SH7751_PCIPAR_BUSNO 0x00FF0000 /* Config. Bus Number */ - #define SH7751_PCIPAR_DEVNO 0x0000FF00 /* Config. Device Number */ - #define SH7751_PCIPAR_REGAD 0x000000FC /* Register Address Number */ -#define SH7751_PCIMBR 0x1C4 /* Memory Base Address Register */ - #define SH7751_PCIMBR_MASK 0xFF000000 /* Memory Space Mask */ - #define SH7751_PCIMBR_LOCK 0x00000001 /* Lock Memory Space */ -#define SH7751_PCIIOBR 0x1C8 /* I/O Base Address Register */ - #define SH7751_PCIIOBR_MASK 0xFFFC0000 /* IO Space Mask */ - #define SH7751_PCIIOBR_LOCK 0x00000001 /* Lock IO Space */ -#define SH7751_PCIPINT 0x1CC /* Power Mgmnt Int. Register */ - #define SH7751_PCIPINT_D3 0x00000002 /* D3 Pwr Mgmt. Interrupt */ - #define SH7751_PCIPINT_D0 0x00000001 /* D0 Pwr Mgmt. Interrupt */ -#define SH7751_PCIPINTM 0x1D0 /* Power Mgmnt Mask Register */ -#define SH7751_PCICLKR 0x1D4 /* Clock Ctrl. Register */ - #define SH7751_PCICLKR_PCSTP 0x00000002 /* PCI Clock Stop */ - #define SH7751_PCICLKR_BCSTP 0x00000002 /* BCLK Clock Stop */ -/* For definitions of BCR, MCR see ... */ -#define SH7751_PCIBCR1 0x1E0 /* Memory BCR1 Register */ -#define SH7751_PCIBCR2 0x1E4 /* Memory BCR2 Register */ -#define SH7751_PCIWCR1 0x1E8 /* Wait Control 1 Register */ -#define SH7751_PCIWCR2 0x1EC /* Wait Control 2 Register */ -#define SH7751_PCIWCR3 0x1F0 /* Wait Control 3 Register */ -#define SH7751_PCIMCR 0x1F4 /* Memory Control Register */ -#define SH7751_PCIBCR3 0x1f8 /* Memory BCR3 Register */ -#define SH7751_PCIPCTR 0x200 /* Port Control Register */ - #define SH7751_PCIPCTR_P2EN 0x000400000 /* Port 2 Enable */ - #define SH7751_PCIPCTR_P1EN 0x000200000 /* Port 1 Enable */ - #define SH7751_PCIPCTR_P0EN 0x000100000 /* Port 0 Enable */ - #define SH7751_PCIPCTR_P2UP 0x000000020 /* Port2 Pull Up Enable */ - #define SH7751_PCIPCTR_P2IO 0x000000010 /* Port2 Output Enable */ - #define SH7751_PCIPCTR_P1UP 0x000000008 /* Port1 Pull Up Enable */ - #define SH7751_PCIPCTR_P1IO 0x000000004 /* Port1 Output Enable */ - #define SH7751_PCIPCTR_P0UP 0x000000002 /* Port0 Pull Up Enable */ - #define SH7751_PCIPCTR_P0IO 0x000000001 /* Port0 Output Enable */ -#define SH7751_PCIPDTR 0x204 /* Port Data Register */ - #define SH7751_PCIPDTR_PB5 0x000000020 /* Port 5 Enable */ - #define SH7751_PCIPDTR_PB4 0x000000010 /* Port 4 Enable */ - #define SH7751_PCIPDTR_PB3 0x000000008 /* Port 3 Enable */ - #define SH7751_PCIPDTR_PB2 0x000000004 /* Port 2 Enable */ - #define SH7751_PCIPDTR_PB1 0x000000002 /* Port 1 Enable */ - #define SH7751_PCIPDTR_PB0 0x000000001 /* Port 0 Enable */ -#define SH7751_PCIPDR 0x220 /* Port IO Data Register */ /* Memory Control Registers */ #define SH7751_BCR1 0xFF800000 /* Memory BCR1 Register */ @@ -274,30 +127,9 @@ #define SH7751_CS5_BASE_ADDR (SH7751_CS4_BASE_ADDR + SH7751_MEM_REGION_SIZE) #define SH7751_CS6_BASE_ADDR (SH7751_CS5_BASE_ADDR + SH7751_MEM_REGION_SIZE) -/* General PCI values */ -#define SH7751_PCI_HOST_BRIDGE 0x6 - -/* Flags */ -#define SH7751_PCIC_NO_RESET 0x0001 - -/* External functions defined per platform i.e. Big Sur, SE... (these could be routed - * through the machine vectors... */ -extern int pcibios_init_platform(void); -extern int pcibios_map_platform_irq(u8 slot, u8 pin); - -struct sh7751_pci_address_space { - unsigned long base; - unsigned long size; -}; - -struct sh7751_pci_address_map { - struct sh7751_pci_address_space window0; - struct sh7751_pci_address_space window1; - unsigned long flags; -}; +struct sh4_pci_address_map; /* arch/sh/drivers/pci/pci-sh7751.c */ -extern int sh7751_pcic_init(struct sh7751_pci_address_map *map); +int sh7751_pcic_init(struct sh4_pci_address_map *map); #endif /* _PCI_SH7751_H_ */ - diff --git a/arch/sh/drivers/pci/pci-sh7780.c b/arch/sh/drivers/pci/pci-sh7780.c index e09721330ac2..bd3064a82087 100644 --- a/arch/sh/drivers/pci/pci-sh7780.c +++ b/arch/sh/drivers/pci/pci-sh7780.c @@ -20,197 +20,36 @@ #include #include #include -#include -#include #include -#include #include - -#include -#include -#include "pci-sh7780.h" - -static unsigned int pci_probe = PCI_PROBE_CONF1; -extern int pci_fixup_pcic(void); - -/* - * Direct access to PCI hardware... - */ - -#define CONFIG_CMD(bus, devfn, where) (0x80000000 | (bus->number << 16) | (devfn << 8) | (where & ~3)) - -/* - * Functions for accessing PCI configuration space with type 1 accesses - */ -static int sh7780_pci_read(struct pci_bus *bus, unsigned int devfn, - int where, int size, u32 *val) -{ - unsigned long flags; - u32 data; - - /* - * PCIPDR may only be accessed as 32 bit words, - * so we must do byte alignment by hand - */ - local_irq_save(flags); - outl(CONFIG_CMD(bus, devfn, where), PCI_REG(SH7780_PCIPAR)); - data = inl(PCI_REG(SH7780_PCIPDR)); - local_irq_restore(flags); - - switch (size) { - case 1: - *val = (data >> ((where & 3) << 3)) & 0xff; - break; - case 2: - *val = (data >> ((where & 2) << 3)) & 0xffff; - break; - case 4: - *val = data; - break; - default: - return PCIBIOS_FUNC_NOT_SUPPORTED; - } - - return PCIBIOS_SUCCESSFUL; -} +#include "pci-sh4.h" /* - * Since SH7780 only does 32bit access we'll have to do a read, - * mask,write operation. - * We'll allow an odd byte offset, though it should be illegal. + * Initialization. Try all known PCI access methods. Note that we support + * using both PCI BIOS and direct access: in such cases, we use I/O ports + * to access config space. + * + * Note that the platform specific initialization (BSC registers, and memory + * space mapping) will be called via the platform defined function + * pcibios_init_platform(). */ -static int sh7780_pci_write(struct pci_bus *bus, unsigned int devfn, - int where, int size, u32 val) +static int __init sh7780_pci_init(void) { - unsigned long flags; - int shift; - u32 data; - - local_irq_save(flags); - outl(CONFIG_CMD(bus, devfn, where), PCI_REG(SH7780_PCIPAR)); - data = inl(PCI_REG(SH7780_PCIPDR)); - local_irq_restore(flags); - - switch (size) { - case 1: - shift = (where & 3) << 3; - data &= ~(0xff << shift); - data |= ((val & 0xff) << shift); - break; - case 2: - shift = (where & 2) << 3; - data &= ~(0xffff << shift); - data |= ((val & 0xffff) << shift); - break; - case 4: - data = val; - break; - default: - return PCIBIOS_FUNC_NOT_SUPPORTED; - } - - outl(data, PCI_REG(SH7780_PCIPDR)); - - return PCIBIOS_SUCCESSFUL; -} - -#undef CONFIG_CMD - -struct pci_ops sh7780_pci_ops = { - .read = sh7780_pci_read, - .write = sh7780_pci_write, -}; + unsigned int id; + int ret; -static int __init pci_check_direct(void) -{ - unsigned int tmp, id; + pr_debug("PCI: Starting intialization.\n"); outl(0x00000001, SH7780_PCI_VCR2); /* Enable PCIC */ /* check for SH7780/SH7780R hardware */ - id = inl(PCI_REG(SH7780_PCIVID)); + id = pci_read_reg(SH7780_PCIVID); if ((id != ((SH7780_DEVICE_ID << 16) | SH7780_VENDOR_ID)) && (id != ((SH7781_DEVICE_ID << 16) | SH7780_VENDOR_ID))) { printk(KERN_ERR "PCI: This is not an SH7780 (%x)\n", id); return -ENODEV; } - /* - * Check if configuration works. - */ - if (pci_probe & PCI_PROBE_CONF1) { - tmp = inl(PCI_REG(SH7780_PCIPAR)); - outl(0x80000000, PCI_REG(SH7780_PCIPAR)); - if (inl(PCI_REG(SH7780_PCIPAR)) == 0x80000000) { - outl(tmp, PCI_REG(SH7780_PCIPAR)); - printk(KERN_INFO "PCI: Using configuration type 1\n"); - request_region(PCI_REG(SH7780_PCIPAR), 8, "PCI conf1"); - return 0; - } - outl(tmp, PCI_REG(SH7780_PCIPAR)); - } - - pr_debug("PCI: pci_check_direct failed\n"); - return -EINVAL; -} - -/***************************************************************************************/ - -/* - * Handle bus scanning and fixups .... - */ - -static void __init pci_fixup_ide_bases(struct pci_dev *d) -{ - int i; - - /* - * PCI IDE controllers use non-standard I/O port decoding, respect it. - */ - if ((d->class >> 8) != PCI_CLASS_STORAGE_IDE) - return; - pr_debug("PCI: IDE base address fixup for %s\n", pci_name(d)); - for(i=0; i<4; i++) { - struct resource *r = &d->resource[i]; - if ((r->start & ~0x80) == 0x374) { - r->start |= 2; - r->end = r->start; - } - } -} - -DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, pci_fixup_ide_bases); - -/* - * Called after each bus is probed, but before its children - * are examined. - */ - -void __init pcibios_fixup_bus(struct pci_bus *b) -{ - pci_read_bridge_bases(b); -} - -/* - * Initialization. Try all known PCI access methods. Note that we support - * using both PCI BIOS and direct access: in such cases, we use I/O ports - * to access config space. - * - * Note that the platform specific initialization (BSC registers, and memory - * space mapping) will be called via the machine vectors (sh_mv.mv_pci_init()) if it - * exists and via the platform defined function pcibios_init_platform(). - * See pci_bigsur.c for implementation; - * - * The BIOS version of the pci functions is not yet implemented but it is left - * in for completeness. Currently an error will be genereated at compile time. - */ - -static int __init sh7780_pci_init(void) -{ - int ret; - - pr_debug("PCI: Starting intialization.\n"); - /* Setup the INTC */ ctrl_outl(0x00200000, INTC_ICR0); /* INTC SH-4 Mode */ ctrl_outl(0x00078000, INTC_INT2MSKCR); /* enable PCIINTA - PCIINTD */ @@ -219,15 +58,14 @@ static int __init sh7780_pci_init(void) ctrl_outl(0x80000000, INTC_INTMSKCLR1); /* enable IRL0-3 Interrupt */ ctrl_outl(0xfffe0000, INTC_INTMSKCLR2); /* enable IRL0-3 Interrupt */ - if ((ret = pci_check_direct()) != 0) + if ((ret = sh4_pci_check_direct()) != 0) return ret; return pcibios_init_platform(); } - core_initcall(sh7780_pci_init); -int __init sh7780_pcic_init(struct sh7780_pci_address_map *map) +int __init sh7780_pcic_init(struct sh4_pci_address_map *map) { u32 word; @@ -236,25 +74,25 @@ int __init sh7780_pcic_init(struct sh7780_pci_address_map *map) * bootloader and doing it here means the MAC addresses loaded * by the bootloader get lost. */ - if (!(map->flags & SH7780_PCIC_NO_RESET)) { + if (!(map->flags & SH4_PCIC_NO_RESET)) { /* toggle PCI reset pin */ - word = SH7780_PCICR_PREFIX | SH7780_PCICR_PRST; - outl(word,PCI_REG(SH7780_PCICR)); + word = SH4_PCICR_PREFIX | SH4_PCICR_PRST; + pci_write_reg(word, SH4_PCICR); /* Wait for a long time... not 1 sec. but long enough */ mdelay(100); - word = SH7780_PCICR_PREFIX; - outl(word,PCI_REG(SH7780_PCICR)); + word = SH4_PCICR_PREFIX; + pci_write_reg(word, SH4_PCICR); } /* set the command/status bits to: * Wait Cycle Control + Parity Enable + Bus Master + * Mem space enable */ - outl(0x00000046, PCI_REG(SH7780_PCICMD)); + pci_write_reg(0x00000046, SH7780_PCICMD); /* define this host as the host bridge */ - word = SH7780_PCI_HOST_BRIDGE << 24; - outl(word, PCI_REG(SH7780_PCIRID)); + word = PCI_BASE_CLASS_BRIDGE << 24; + pci_write_reg(word, SH7780_PCIRID); /* Set IO and Mem windows to local address * Make PCI and local address the same for easy 1 to 1 mapping @@ -262,25 +100,26 @@ int __init sh7780_pcic_init(struct sh7780_pci_address_map *map) * Window1 = map->window1.size @ cached area base = SDRAM */ word = ((map->window0.size - 1) & 0x1ff00001) | 0x01; - outl(0x07f00001, PCI_REG(SH7780_PCILSR0)); + pci_write_reg(0x07f00001, SH4_PCILSR0); word = ((map->window1.size - 1) & 0x1ff00001) | 0x01; - outl(0x00000001, PCI_REG(SH7780_PCILSR1)); + pci_write_reg(0x00000001, SH4_PCILSR1); /* Set the values on window 0 PCI config registers */ word = P2SEGADDR(map->window0.base); - outl(0xa8000000, PCI_REG(SH7780_PCILAR0)); - outl(0x08000000, PCI_REG(SH7780_PCIMBAR0)); + pci_write_reg(0xa8000000, SH4_PCILAR0); + pci_write_reg(0x08000000, SH7780_PCIMBAR0); /* Set the values on window 1 PCI config registers */ word = P2SEGADDR(map->window1.base); - outl(0x00000000, PCI_REG(SH7780_PCILAR1)); - outl(0x00000000, PCI_REG(SH7780_PCIMBAR1)); + pci_write_reg(0x00000000, SH4_PCILAR1); + pci_write_reg(0x00000000, SH7780_PCIMBAR1); /* Map IO space into PCI IO window * The IO window is 64K-PCIBIOS_MIN_IO in size * IO addresses will be translated to the * PCI IO window base address */ - PCIDBG(3,"PCI: Mapping IO address 0x%x - 0x%x to base 0x%x\n", PCIBIOS_MIN_IO, - (64*1024), SH7780_PCI_IO_BASE+PCIBIOS_MIN_IO); + pr_debug("PCI: Mapping IO address 0x%x - 0x%x to base 0x%x\n", + PCIBIOS_MIN_IO, (64 << 10), + SH7780_PCI_IO_BASE + PCIBIOS_MIN_IO); /* NOTE: I'm ignoring the PCI error IRQs for now.. * TODO: add support for the internal error interrupts and @@ -293,49 +132,8 @@ int __init sh7780_pcic_init(struct sh7780_pci_address_map *map) /* SH7780 init done, set central function init complete */ /* use round robin mode to stop a device starving/overruning */ - word = SH7780_PCICR_PREFIX | SH7780_PCICR_CFIN | /* SH7780_PCICR_ARBM |*/ SH7780_PCICR_FTO; - outl(word, PCI_REG(SH7780_PCICR)); + word = SH4_PCICR_PREFIX | SH4_PCICR_CFIN | SH4_PCICR_FTO; + pci_write_reg(word, SH4_PCICR); return 1; } - -char * __init pcibios_setup(char *str) -{ - if (!strcmp(str, "off")) { - pci_probe = 0; - return NULL; - } - - return str; -} - -/* - * IRQ functions - */ -static u8 __init sh7780_no_swizzle(struct pci_dev *dev, u8 *pin) -{ - /* no swizzling */ - return PCI_SLOT(dev->devfn); -} - -static int sh7780_pci_lookup_irq(struct pci_dev *dev, u8 slot, u8 pin) -{ - int irq = -1; - - /* now lookup the actual IRQ on a platform specific basis (pci-'platform'.c) */ - irq = pcibios_map_platform_irq(slot,pin); - if( irq < 0 ) { - pr_debug("PCI: Error mapping IRQ on device %s\n", pci_name(dev)); - return irq; - } - - pr_debug("Setting IRQ for slot %s to %d\n", pci_name(dev), irq); - - return irq; -} - -void __init pcibios_fixup_irqs(void) -{ - pci_fixup_irqs(sh7780_no_swizzle, sh7780_pci_lookup_irq); -} - diff --git a/arch/sh/drivers/pci/pci-sh7780.h b/arch/sh/drivers/pci/pci-sh7780.h index 750d5d7753a2..f02d2180a4bc 100644 --- a/arch/sh/drivers/pci/pci-sh7780.h +++ b/arch/sh/drivers/pci/pci-sh7780.h @@ -12,28 +12,6 @@ #ifndef _PCI_SH7780_H_ #define _PCI_SH7780_H_ -#include - -/* set debug level 4=verbose...1=terse */ -//#define DEBUG_PCI 3 -#undef DEBUG_PCI - -#ifdef DEBUG_PCI -#define PCIDBG(n, x...) { if(DEBUG_PCI>=n) printk(x); } -#else -#define PCIDBG(n, x...) -#endif - -/* startup values */ -#define PCI_PROBE_BIOS 1 -#define PCI_PROBE_CONF1 2 -#define PCI_PROBE_CONF2 4 -#define PCI_NO_SORT 0x100 -#define PCI_BIOS_SORT 0x200 -#define PCI_NO_CHECKS 0x400 -#define PCI_ASSIGN_ROMS 0x1000 -#define PCI_BIOS_IRQ_SCAN 0x2000 - /* Platform Specific Values */ #define SH7780_VENDOR_ID 0x1912 #define SH7780_DEVICE_ID 0x0002 @@ -47,15 +25,12 @@ /* SH7780 Specific Values */ #define SH7780_PCI_CONFIG_BASE 0xFD000000 /* Config space base addr */ #define SH7780_PCI_CONFIG_SIZE 0x01000000 /* Config space size */ + #define SH7780_PCI_MEMORY_BASE 0xFD000000 /* Memory space base addr */ #define SH7780_PCI_MEM_SIZE 0x01000000 /* Size of Memory window */ -#if 1 + #define SH7780_PCI_IO_BASE 0xFE400000 /* IO space base address */ #define SH7780_PCI_IO_SIZE 0x00400000 /* Size of IO window */ -#else -#define SH7780_PCI_IO_BASE 0xFE200000 /* IO space base address */ -#define SH7780_PCI_IO_SIZE 0x00200000 /* Size of IO window */ -#endif #define SH7780_PCIREG_BASE 0xFE040000 /* PCI regs base address */ #define PCI_REG(n) (SH7780_PCIREG_BASE+n) @@ -90,44 +65,16 @@ #define SH7780_PCIPMCSR_BSE 0x046 #define SH7780_PCICDD 0x047 -/* SH7780 PCI Local Registers */ -#define SH7780_PCICR 0x100 /* PCI Control Register */ - #define SH7780_PCICR_PREFIX 0xA5000000 /* CR prefix for write */ - #define SH7780_PCICR_PFCS 0x00000800 /* TRDY/IRDY Enable */ - #define SH7780_PCICR_FTO 0x00000400 /* TRDY/IRDY Enable */ - #define SH7780_PCICR_PFE 0x00000200 /* Target Read Single */ - #define SH7780_PCICR_TBS 0x00000100 /* Target Byte Swap */ - #define SH7780_PCICR_ARBM 0x00000040 /* PCI Arbitration Mode */ - #define SH7780_PCICR_IOCS 0x00000004 /* INTA output assert */ - #define SH7780_PCICR_PRST 0x00000002 /* PCI Reset Assert */ - #define SH7780_PCICR_CFIN 0x00000001 /* Central Fun. Init Done */ -#define SH7780_PCILSR0 0x104 /* PCI Local Space Register0 */ -#define SH7780_PCILSR1 0x108 /* PCI Local Space Register1 */ -#define SH7780_PCILAR0 0x10C /* PCI Local Address Register1 */ -#define SH7780_PCILAR1 0x110 /* PCI Local Address Register1 */ -#define SH7780_PCIIR 0x114 /* PCI Interrupt Register */ -#define SH7780_PCIIMR 0x118 /* PCI Interrupt Mask Register */ -#define SH7780_PCIAIR 0x11C /* Error Address Register */ -#define SH7780_PCICIR 0x120 /* Error Command/Data Register */ -#define SH7780_PCIAINT 0x130 /* Arbiter Interrupt Register */ -#define SH7780_PCIAINTM 0x134 /* Arbiter Int. Mask Register */ -#define SH7780_PCIBMIR 0x138 /* Error Bus Master Register */ -#define SH7780_PCIPAR 0x1C0 /* PIO Address Register */ -#define SH7780_PCIPINT 0x1CC /* Power Management Int. Register */ -#define SH7780_PCIPINTM 0x1D0 /* Power Management Mask Register */ -#define SH7780_PCIMBR0 0x1E0 /* Memory Bank0 Register */ -#define SH7780_PCIMBMR0 0x1E4 /* Memory Bank0 Mask Register */ -#define SH7780_PCIMBR1 0x1E8 /* Memory Bank1 Register */ -#define SH7780_PCIMBMR1 0x1EC /* Memory Bank1 Mask Register */ -#define SH7780_PCIMBR2 0x1F0 /* Memory Bank2 Register */ -#define SH7780_PCIMBMR2 0x1F4 /* Memory Bank2 Mask Register */ -#define SH7780_PCIIOBR 0x1F8 /* Bank Register */ -#define SH7780_PCIIOBMR 0x1FC /* Bank Mask Register */ +#define SH7780_PCIMBR0 0x1E0 +#define SH7780_PCIMBMR0 0x1E4 +#define SH7780_PCIMBR2 0x1F0 +#define SH7780_PCIMBMR2 0x1F4 +#define SH7780_PCIIOBR 0x1F8 +#define SH7780_PCIIOBMR 0x1FC #define SH7780_PCICSCR0 0x210 /* Cache Snoop1 Cnt. Register */ #define SH7780_PCICSCR1 0x214 /* Cache Snoop2 Cnt. Register */ #define SH7780_PCICSAR0 0x218 /* Cache Snoop1 Addr. Register */ #define SH7780_PCICSAR1 0x21C /* Cache Snoop2 Addr. Register */ -#define SH7780_PCIPDR 0x220 /* Port IO Data Register */ /* General Memory Config Addresses */ #define SH7780_CS0_BASE_ADDR 0x0 @@ -139,30 +86,9 @@ #define SH7780_CS5_BASE_ADDR (SH7780_CS4_BASE_ADDR + SH7780_MEM_REGION_SIZE) #define SH7780_CS6_BASE_ADDR (SH7780_CS5_BASE_ADDR + SH7780_MEM_REGION_SIZE) -/* General PCI values */ -#define SH7780_PCI_HOST_BRIDGE 0x6 - -/* Flags */ -#define SH7780_PCIC_NO_RESET 0x0001 - -/* External functions defined per platform i.e. Big Sur, SE... (these could be routed - * through the machine vectors... */ -extern int pcibios_init_platform(void); -extern int pcibios_map_platform_irq(u8 slot, u8 pin); - -struct sh7780_pci_address_space { - unsigned long base; - unsigned long size; -}; - -struct sh7780_pci_address_map { - struct sh7780_pci_address_space window0; - struct sh7780_pci_address_space window1; - unsigned long flags; -}; +struct sh4_pci_address_map; /* arch/sh/drivers/pci/pci-sh7780.c */ -extern int sh7780_pcic_init(struct sh7780_pci_address_map *map); +int sh7780_pcic_init(struct sh4_pci_address_map *map); #endif /* _PCI_SH7780_H_ */ - diff --git a/arch/sh/drivers/pci/pci-st40.c b/arch/sh/drivers/pci/pci-st40.c index 7c81b8b65bb5..4ab5ea6b35fb 100644 --- a/arch/sh/drivers/pci/pci-st40.c +++ b/arch/sh/drivers/pci/pci-st40.c @@ -70,12 +70,6 @@ static void pci_set_rbar_region(unsigned int region, unsigned long localAddr, unsigned long pciOffset, unsigned long regionSize); -/* - * The pcibios_map_platform_irq function is defined in the appropriate - * board specific code and referenced here - */ -extern int __init pcibios_map_platform_irq(struct pci_dev *dev, u8 slot, u8 pin); - static __init void SetPCIPLL(void) { { @@ -422,13 +416,6 @@ struct pci_ops st40pci_config_ops = { /* Everything hangs off this */ static struct pci_bus *pci_root_bus; - -static u8 __init no_swizzle(struct pci_dev *dev, u8 * pin) -{ - return PCI_SLOT(dev->devfn); -} - - static int __init pcibios_init(void) { extern unsigned long memory_start, memory_end; @@ -465,17 +452,11 @@ static int __init pcibios_init(void) /* ok, do the scan man */ pci_root_bus = pci_scan_bus(0, &st40pci_config_ops, NULL); pci_assign_unassigned_resources(); - pci_fixup_irqs(no_swizzle, pcibios_map_platform_irq); return 0; } - subsys_initcall(pcibios_init); -void __init pcibios_fixup_bus(struct pci_bus *bus) -{ -} - /* * Publish a region of local address space over the PCI bus * to other devices. diff --git a/arch/sh/drivers/pci/pci.c b/arch/sh/drivers/pci/pci.c index 285dffd12bd8..7377a8a8e161 100644 --- a/arch/sh/drivers/pci/pci.c +++ b/arch/sh/drivers/pci/pci.c @@ -21,6 +21,26 @@ #include #include +static inline u8 bridge_swizzle(u8 pin, u8 slot) +{ + return (((pin - 1) + slot) % 4) + 1; +} + +static u8 __init simple_swizzle(struct pci_dev *dev, u8 *pinp) +{ + u8 pin = *pinp; + + while (dev->bus->parent) { + pin = bridge_swizzle(pin, PCI_SLOT(dev->devfn)); + /* Move up the chain of bridges. */ + dev = dev->bus->self; + } + *pinp = pin; + + /* The slot is the slot of the last bridge. */ + return PCI_SLOT(dev->devfn); +} + static int __init pcibios_init(void) { struct pci_channel *p; @@ -36,19 +56,26 @@ static int __init pcibios_init(void) /* scan the buses */ busno = 0; - for (p= board_pci_channels; p->pci_ops != NULL; p++) { + for (p = board_pci_channels; p->pci_ops != NULL; p++) { bus = pci_scan_bus(busno, p->pci_ops, p); - busno = bus->subordinate+1; + busno = bus->subordinate + 1; } - /* board-specific fixups */ - pcibios_fixup_irqs(); + pci_fixup_irqs(simple_swizzle, pcibios_map_platform_irq); return 0; } - subsys_initcall(pcibios_init); +/* + * Called after each bus is probed, but before its children + * are examined. + */ +void __init pcibios_fixup_bus(struct pci_bus *bus) +{ + pci_read_bridge_bases(bus); +} + void pcibios_update_resource(struct pci_dev *dev, struct resource *root, struct resource *res, int resource) @@ -192,11 +219,10 @@ void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen) return NULL; } +EXPORT_SYMBOL(pci_iomap); void pci_iounmap(struct pci_dev *dev, void __iomem *addr) { iounmap(addr); } - -EXPORT_SYMBOL(pci_iomap); EXPORT_SYMBOL(pci_iounmap); diff --git a/arch/sh/kernel/cpu/sh4/Makefile b/arch/sh/kernel/cpu/sh4/Makefile index 3d5cafc71ae3..9611fab03b55 100644 --- a/arch/sh/kernel/cpu/sh4/Makefile +++ b/arch/sh/kernel/cpu/sh4/Makefile @@ -7,6 +7,9 @@ obj-y := ex.o probe.o obj-$(CONFIG_SH_FPU) += fpu.o obj-$(CONFIG_SH_STORE_QUEUES) += sq.o +# CPU subtype setup +obj-$(CONFIG_CPU_SUBTYPE_SH7780) += setup-sh7780.o + # Primary on-chip clocks (common) clock-$(CONFIG_CPU_SH4) := clock-sh4.o clock-$(CONFIG_CPU_SUBTYPE_SH73180) := clock-sh73180.o diff --git a/arch/sh/kernel/cpu/sh4/setup-sh7780.c b/arch/sh/kernel/cpu/sh4/setup-sh7780.c new file mode 100644 index 000000000000..72493f259edc --- /dev/null +++ b/arch/sh/kernel/cpu/sh4/setup-sh7780.c @@ -0,0 +1,79 @@ +/* + * SH7780 Setup + * + * Copyright (C) 2006 Paul Mundt + * + * 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 + +static struct resource rtc_resources[] = { + [0] = { + .start = 0xffe80000, + .end = 0xffe80000 + 0x58 - 1, + .flags = IORESOURCE_IO, + }, + [1] = { + /* Period IRQ */ + .start = 21, + .flags = IORESOURCE_IRQ, + }, + [2] = { + /* Carry IRQ */ + .start = 22, + .flags = IORESOURCE_IRQ, + }, + [3] = { + /* Alarm IRQ */ + .start = 23, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device rtc_device = { + .name = "sh-rtc", + .id = -1, + .num_resources = ARRAY_SIZE(rtc_resources), + .resource = rtc_resources, +}; + +static struct plat_sci_port sci_platform_data[] = { + { + .mapbase = 0xffe00000, + .flags = UPF_BOOT_AUTOCONF, + .type = PORT_SCIF, + .irqs = { 40, 41, 43, 42 }, + }, { + .mapbase = 0xffe10000, + .flags = UPF_BOOT_AUTOCONF, + .type = PORT_SCIF, + .irqs = { 76, 77, 79, 78 }, + }, { + .flags = 0, + } +}; + +static struct platform_device sci_device = { + .name = "sh-sci", + .id = -1, + .dev = { + .platform_data = sci_platform_data, + }, +}; + +static struct platform_device *sh7780_devices[] __initdata = { + &rtc_device, + &sci_device, +}; + +static int __init sh7780_devices_setup(void) +{ + return platform_add_devices(sh7780_devices, + ARRAY_SIZE(sh7780_devices)); +} +__initcall(sh7780_devices_setup); diff --git a/include/asm-sh/io.h b/include/asm-sh/io.h index 894e64b2d5f0..27dba653cbe7 100644 --- a/include/asm-sh/io.h +++ b/include/asm-sh/io.h @@ -209,6 +209,11 @@ static inline void ctrl_outl(unsigned int b, unsigned long addr) *(volatile unsigned long*)addr = b; } +static inline void ctrl_delay(void) +{ + ctrl_inw(P2SEG); +} + #define IO_SPACE_LIMIT 0xffffffff /* diff --git a/include/asm-sh/pci.h b/include/asm-sh/pci.h index 18a109de0f2e..6ccc948fe216 100644 --- a/include/asm-sh/pci.h +++ b/include/asm-sh/pci.h @@ -32,6 +32,34 @@ extern struct pci_channel board_pci_channels[]; #define PCIBIOS_MIN_IO board_pci_channels->io_resource->start #define PCIBIOS_MIN_MEM board_pci_channels->mem_resource->start +/* + * I/O routine helpers + */ +#ifdef CONFIG_CPU_SUBTYPE_SH7780 +#define PCI_IO_AREA 0xFE400000 +#define PCI_IO_SIZE 0x00400000 +#else +#define PCI_IO_AREA 0xFE240000 +#define PCI_IO_SIZE 0X00040000 +#endif + +#define PCI_MEM_SIZE 0x01000000 + +#define SH4_PCIIOBR_MASK 0xFFFC0000 +#define pci_ioaddr(addr) (PCI_IO_AREA + (addr & ~SH4_PCIIOBR_MASK)) + +#if defined(CONFIG_PCI) +#define is_pci_ioaddr(port) \ + (((port) >= PCIBIOS_MIN_IO) && \ + ((port) < (PCIBIOS_MIN_IO + PCI_IO_SIZE))) +#define is_pci_memaddr(port) \ + (((port) >= PCIBIOS_MIN_MEM) && \ + ((port) < (PCIBIOS_MIN_MEM + PCI_MEM_SIZE))) +#else +#define is_pci_ioaddr(port) (0) +#define is_pci_memaddr(port) (0) +#endif + struct pci_dev; extern void pcibios_set_master(struct pci_dev *dev); @@ -98,11 +126,12 @@ static inline void pci_dma_burst_advice(struct pci_dev *pdev, #endif /* Board-specific fixup routines. */ -extern void pcibios_fixup(void); -extern void pcibios_fixup_irqs(void); +void pcibios_fixup(void); +int pcibios_init_platform(void); +int pcibios_map_platform_irq(struct pci_dev *dev, u8 slot, u8 pin); #ifdef CONFIG_PCI_AUTO -extern int pciauto_assign_resources(int busno, struct pci_channel *hose); +int pciauto_assign_resources(int busno, struct pci_channel *hose); #endif static inline void pcibios_add_platform_entries(struct pci_dev *dev) -- cgit v1.2.3 From 0f08f338083cc1d68788ccbccc44bd0502fc57ae Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Wed, 27 Sep 2006 17:03:56 +0900 Subject: sh: More cosmetic cleanups and trivial fixes. Nothing exciting here, just trivial fixes.. Signed-off-by: Paul Mundt --- arch/sh/drivers/dma/dma-sh.c | 10 ++++++---- arch/sh/drivers/pci/ops-titan.c | 1 + arch/sh/kernel/setup.c | 2 +- arch/sh/kernel/sh_ksyms.c | 15 --------------- arch/sh/mm/cache-sh7705.c | 19 ++++++------------- arch/sh/mm/fault.c | 13 ++++++++----- arch/sh/mm/pmb.c | 4 ---- include/asm-sh/dma.h | 1 + include/asm-sh/irq.h | 5 +++++ include/asm-sh/kexec.h | 2 ++ include/asm-sh/system.h | 36 +++++------------------------------- 11 files changed, 35 insertions(+), 73 deletions(-) (limited to 'include') diff --git a/arch/sh/drivers/dma/dma-sh.c b/arch/sh/drivers/dma/dma-sh.c index 40a480d20aaf..cbbe8bce3d67 100644 --- a/arch/sh/drivers/dma/dma-sh.c +++ b/arch/sh/drivers/dma/dma-sh.c @@ -80,21 +80,23 @@ static irqreturn_t dma_tei(int irq, void *dev_id, struct pt_regs *regs) static int sh_dmac_request_dma(struct dma_channel *chan) { - char name[32]; - if (unlikely(!chan->flags & DMA_TEI_CAPABLE)) return 0; - snprintf(name, sizeof(name), "DMAC Transfer End (Channel %d)", + chan->name = kzalloc(32, GFP_KERNEL); + if (unlikely(chan->name == NULL)) + return -ENOMEM; + snprintf(chan->name, 32, "DMAC Transfer End (Channel %d)", chan->chan); return request_irq(get_dmte_irq(chan->chan), dma_tei, - IRQF_DISABLED, name, chan); + IRQF_DISABLED, chan->name, chan); } static void sh_dmac_free_dma(struct dma_channel *chan) { free_irq(get_dmte_irq(chan->chan), chan); + kfree(chan->name); } static void diff --git a/arch/sh/drivers/pci/ops-titan.c b/arch/sh/drivers/pci/ops-titan.c index 9c8b2027c35d..c6097bcd97fd 100644 --- a/arch/sh/drivers/pci/ops-titan.c +++ b/arch/sh/drivers/pci/ops-titan.c @@ -16,6 +16,7 @@ #include #include #include +#include #include #include #include "pci-sh4.h" diff --git a/arch/sh/kernel/setup.c b/arch/sh/kernel/setup.c index cff8d36f91b0..4afdec071700 100644 --- a/arch/sh/kernel/setup.c +++ b/arch/sh/kernel/setup.c @@ -507,7 +507,7 @@ static int show_cpuinfo(struct seq_file *m, void *v) * unified cache on the SH-2 and SH-3, as well as the harvard * style cache on the SH-4. */ - if (test_bit(SH_CACHE_COMBINED, &(boot_cpu_data.icache.flags))) { + if (boot_cpu_data.icache.flags & SH_CACHE_COMBINED) { seq_printf(m, "unified\n"); show_cacheinfo(m, "cache", boot_cpu_data.icache); } else { diff --git a/arch/sh/kernel/sh_ksyms.c b/arch/sh/kernel/sh_ksyms.c index fd73ab0326e9..7f3a42244cab 100644 --- a/arch/sh/kernel/sh_ksyms.c +++ b/arch/sh/kernel/sh_ksyms.c @@ -27,20 +27,11 @@ EXPORT_SYMBOL(sh_mv); /* platform dependent support */ EXPORT_SYMBOL(dump_fpu); -EXPORT_SYMBOL(enable_irq); -EXPORT_SYMBOL(disable_irq); -EXPORT_SYMBOL(probe_irq_mask); EXPORT_SYMBOL(kernel_thread); -EXPORT_SYMBOL(disable_irq_nosync); EXPORT_SYMBOL(irq_desc); EXPORT_SYMBOL(no_irq_type); -EXPORT_SYMBOL(strstr); EXPORT_SYMBOL(strlen); -EXPORT_SYMBOL(strnlen); -EXPORT_SYMBOL(strchr); -EXPORT_SYMBOL(strcat); -EXPORT_SYMBOL(strncat); /* PCI exports */ #ifdef CONFIG_PCI @@ -51,13 +42,8 @@ EXPORT_SYMBOL(pci_free_consistent); /* mem exports */ EXPORT_SYMBOL(memchr); EXPORT_SYMBOL(memcpy); -EXPORT_SYMBOL(memcpy_fromio); -EXPORT_SYMBOL(memcpy_toio); EXPORT_SYMBOL(memset); -EXPORT_SYMBOL(memset_io); EXPORT_SYMBOL(memmove); -EXPORT_SYMBOL(memcmp); -EXPORT_SYMBOL(memscan); EXPORT_SYMBOL(__copy_user); EXPORT_SYMBOL(boot_cpu_data); @@ -124,5 +110,4 @@ EXPORT_SYMBOL(csum_partial); #ifdef CONFIG_IPV6 EXPORT_SYMBOL(csum_ipv6_magic); #endif -EXPORT_SYMBOL(consistent_sync); EXPORT_SYMBOL(clear_page); diff --git a/arch/sh/mm/cache-sh7705.c b/arch/sh/mm/cache-sh7705.c index bf94eedb0a8e..045abdf078f5 100644 --- a/arch/sh/mm/cache-sh7705.c +++ b/arch/sh/mm/cache-sh7705.c @@ -9,7 +9,6 @@ * for more details. * */ - #include #include #include @@ -25,14 +24,10 @@ #include #include -/* The 32KB cache on the SH7705 suffers from the same synonym problem - * as SH4 CPUs */ - -#define __pte_offset(address) \ - ((address >> PAGE_SHIFT) & (PTRS_PER_PTE - 1)) -#define pte_offset(dir, address) ((pte_t *) pmd_page_vaddr(*(dir)) + \ - __pte_offset(address)) - +/* + * The 32KB cache on the SH7705 suffers from the same synonym problem + * as SH4 CPUs + */ static inline void cache_wback_all(void) { unsigned long ways, waysize, addrstart; @@ -73,7 +68,6 @@ void flush_icache_range(unsigned long start, unsigned long end) __flush_wback_region((void *)start, end - start); } - /* * Writeback&Invalidate the D-cache of the page */ @@ -128,7 +122,6 @@ static void __flush_dcache_page(unsigned long phys) local_irq_restore(flags); } - /* * Write back & invalidate the D-cache of the page. * (To avoid "alias" issues) @@ -186,7 +179,8 @@ void flush_cache_range(struct vm_area_struct *vma, unsigned long start, * * ADDRESS: Virtual Address (U0 address) */ -void flush_cache_page(struct vm_area_struct *vma, unsigned long address, unsigned long pfn) +void flush_cache_page(struct vm_area_struct *vma, unsigned long address, + unsigned long pfn) { __flush_dcache_page(pfn << PAGE_SHIFT); } @@ -203,4 +197,3 @@ void flush_icache_page(struct vm_area_struct *vma, struct page *page) { __flush_purge_region(page_address(page), PAGE_SIZE); } - diff --git a/arch/sh/mm/fault.c b/arch/sh/mm/fault.c index dc461d2bc183..c69fd603226a 100644 --- a/arch/sh/mm/fault.c +++ b/arch/sh/mm/fault.c @@ -13,6 +13,8 @@ */ #include #include +#include +#include #include #include #include @@ -188,15 +190,16 @@ do_sigbus: /* * Called with interrupts disabled. */ -asmlinkage int __do_page_fault(struct pt_regs *regs, unsigned long writeaccess, - unsigned long address) +asmlinkage int __kprobes __do_page_fault(struct pt_regs *regs, + unsigned long writeaccess, + unsigned long address) { pgd_t *pgd; pud_t *pud; pmd_t *pmd; pte_t *pte; pte_t entry; - struct mm_struct *mm; + struct mm_struct *mm = current->mm; spinlock_t *ptl; int ret = 1; @@ -214,10 +217,10 @@ asmlinkage int __do_page_fault(struct pt_regs *regs, unsigned long writeaccess, pgd = pgd_offset_k(address); mm = NULL; } else { - if (unlikely(address >= TASK_SIZE || !(mm = current->mm))) + if (unlikely(address >= TASK_SIZE || !mm)) return 1; - pgd = pgd_offset(current->mm, address); + pgd = pgd_offset(mm, address); } pud = pud_offset(pgd, address); diff --git a/arch/sh/mm/pmb.c b/arch/sh/mm/pmb.c index 819fd0faf022..92e745341e4d 100644 --- a/arch/sh/mm/pmb.c +++ b/arch/sh/mm/pmb.c @@ -337,10 +337,8 @@ static int __init pmb_init(void) return 0; } - arch_initcall(pmb_init); -#ifdef CONFIG_DEBUG_FS static int pmb_seq_show(struct seq_file *file, void *iter) { int i; @@ -399,6 +397,4 @@ static int __init pmb_debugfs_init(void) return 0; } - postcore_initcall(pmb_debugfs_init); -#endif diff --git a/include/asm-sh/dma.h b/include/asm-sh/dma.h index e62a6d0ed932..d9daa028689f 100644 --- a/include/asm-sh/dma.h +++ b/include/asm-sh/dma.h @@ -89,6 +89,7 @@ struct dma_channel { wait_queue_head_t wait_queue; struct sys_device dev; + char *name; }; struct dma_info { diff --git a/include/asm-sh/irq.h b/include/asm-sh/irq.h index 7e8455b1cb44..648102e9236f 100644 --- a/include/asm-sh/irq.h +++ b/include/asm-sh/irq.h @@ -334,6 +334,11 @@ extern void enable_irq(unsigned int); extern void make_maskreg_irq(unsigned int irq); extern unsigned short *irq_mask_register; +/* + * PINT IRQs + */ +void init_IRQ_pint(void); + /* * Function for "on chip support modules". */ diff --git a/include/asm-sh/kexec.h b/include/asm-sh/kexec.h index 9dfe59f6fcb5..a5f85e9e428d 100644 --- a/include/asm-sh/kexec.h +++ b/include/asm-sh/kexec.h @@ -23,6 +23,8 @@ /* The native architecture */ #define KEXEC_ARCH KEXEC_ARCH_SH +#define MAX_NOTE_BYTES 1024 + #ifndef __ASSEMBLY__ extern void machine_shutdown(void); diff --git a/include/asm-sh/system.h b/include/asm-sh/system.h index 477422afeb0d..6c1f8fde5ac4 100644 --- a/include/asm-sh/system.h +++ b/include/asm-sh/system.h @@ -79,7 +79,7 @@ static inline void sched_cacheflush(void) } #endif -static __inline__ unsigned long tas(volatile int *m) +static inline unsigned long tas(volatile int *m) { unsigned long retval; @@ -161,7 +161,7 @@ static inline void local_irq_enable(void) } #endif -static __inline__ void local_irq_disable(void) +static inline void local_irq_disable(void) { unsigned long __dummy; __asm__ __volatile__("stc sr, %0\n\t" @@ -172,7 +172,7 @@ static __inline__ void local_irq_disable(void) : "memory"); } -static __inline__ void set_bl_bit(void) +static inline void set_bl_bit(void) { unsigned long __dummy0, __dummy1; @@ -185,7 +185,7 @@ static __inline__ void set_bl_bit(void) : "memory"); } -static __inline__ void clear_bl_bit(void) +static inline void clear_bl_bit(void) { unsigned long __dummy0, __dummy1; @@ -207,7 +207,7 @@ static __inline__ void clear_bl_bit(void) (flags != 0); \ }) -static __inline__ unsigned long local_irq_save(void) +static inline unsigned long local_irq_save(void) { unsigned long flags, __dummy; @@ -223,36 +223,10 @@ static __inline__ unsigned long local_irq_save(void) return flags; } -#ifdef DEBUG_CLI_STI -static __inline__ void local_irq_restore(unsigned long x) -{ - if ((x & 0x000000f0) != 0x000000f0) - local_irq_enable(); - else { - unsigned long flags; - local_save_flags(flags); - - if (flags == 0) { - extern void dump_stack(void); - printk(KERN_ERR "BUG!\n"); - dump_stack(); - local_irq_disable(); - } - } -} -#else #define local_irq_restore(x) do { \ if ((x & 0x000000f0) != 0x000000f0) \ local_irq_enable(); \ } while (0) -#endif - -#define really_restore_flags(x) do { \ - if ((x & 0x000000f0) != 0x000000f0) \ - local_irq_enable(); \ - else \ - local_irq_disable(); \ -} while (0) /* * Jump to P2 area. -- cgit v1.2.3 From 2991be725260d6fec11691a6138b9d71de949956 Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Wed, 27 Sep 2006 17:07:07 +0900 Subject: sh: Fixup __strnlen_user() behaviour. Drop TIF_USERSPACE and add addr_limit to the thread_info struct. Subsequently, use that for address checking in strnlen_user() to ward off bogus -EFAULTs. Make __strnlen_user() return 0 on exception, rather than -EFAULT. Signed-off-by: Paul Mundt --- arch/sh/kernel/process.c | 3 ++ include/asm-sh/processor.h | 4 +++ include/asm-sh/thread_info.h | 4 +-- include/asm-sh/uaccess.h | 65 +++++++++----------------------------------- 4 files changed, 22 insertions(+), 54 deletions(-) (limited to 'include') diff --git a/arch/sh/kernel/process.c b/arch/sh/kernel/process.c index f2031314cb2b..4a32550fd7c6 100644 --- a/arch/sh/kernel/process.c +++ b/arch/sh/kernel/process.c @@ -263,6 +263,7 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long usp, unsigned long unused, struct task_struct *p, struct pt_regs *regs) { + struct thread_info *ti = task_thread_info(p); struct pt_regs *childregs; #if defined(CONFIG_SH_FPU) struct task_struct *tsk = current; @@ -277,8 +278,10 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long usp, if (user_mode(regs)) { childregs->regs[15] = usp; + ti->addr_limit = USER_DS; } else { childregs->regs[15] = (unsigned long)task_stack_page(p) + THREAD_SIZE; + ti->addr_limit = KERNEL_DS; } if (clone_flags & CLONE_SETTLS) { childregs->gbr = childregs->regs[0]; diff --git a/include/asm-sh/processor.h b/include/asm-sh/processor.h index e99aff706cf7..a22732007dd4 100644 --- a/include/asm-sh/processor.h +++ b/include/asm-sh/processor.h @@ -149,6 +149,10 @@ struct thread_struct { union sh_fpu_union fpu; }; +typedef struct { + unsigned long seg; +} mm_segment_t; + /* Count of active tasks with UBC settings */ extern int ubc_usercnt; diff --git a/include/asm-sh/thread_info.h b/include/asm-sh/thread_info.h index f64dd803a014..b986a1914472 100644 --- a/include/asm-sh/thread_info.h +++ b/include/asm-sh/thread_info.h @@ -21,6 +21,7 @@ struct thread_info { unsigned long flags; /* low level flags */ __u32 cpu; int preempt_count; /* 0 => preemptable, <0 => BUG */ + mm_segment_t addr_limit; /* thread address space */ struct restart_block restart_block; __u8 supervisor_stack[0]; }; @@ -40,6 +41,7 @@ struct thread_info { .flags = 0, \ .cpu = 0, \ .preempt_count = 1, \ + .addr_limit = KERNEL_DS, \ .restart_block = { \ .fn = do_no_restart_syscall, \ }, \ @@ -95,7 +97,6 @@ static inline struct thread_info *current_thread_info(void) #define TIF_USEDFPU 16 /* FPU was used by this task this quantum (SMP) */ #define TIF_POLLING_NRFLAG 17 /* true if poll_idle() is polling TIF_NEED_RESCHED */ #define TIF_MEMDIE 18 -#define TIF_USERSPACE 31 /* true if FS sets userspace */ #define _TIF_SYSCALL_TRACE (1< #include -/* - * NOTE: Macro/functions in this file depends on threads_info.h implementation. - * Assumes: - * TI_FLAGS == 8 - * TIF_USERSPACE == 31 - * USER_ADDR_LIMIT == 0x80000000 - */ - #define VERIFY_READ 0 #define VERIFY_WRITE 1 -typedef struct { - unsigned int is_user_space; -} mm_segment_t; - /* * The fs value determines whether argument validity checking should be * performed or not. If get_fs() == USER_DS, checking is performed, with @@ -40,12 +28,14 @@ typedef struct { */ #define MAKE_MM_SEG(s) ((mm_segment_t) { (s) }) -#define segment_eq(a,b) ((a).is_user_space == (b).is_user_space) -#define USER_ADDR_LIMIT 0x80000000 +#define KERNEL_DS MAKE_MM_SEG(0xFFFFFFFFUL) +#define USER_DS MAKE_MM_SEG(PAGE_OFFSET) + +#define segment_eq(a,b) ((a).seg == (b).seg) -#define KERNEL_DS MAKE_MM_SEG(0) -#define USER_DS MAKE_MM_SEG(1) +#define __addr_ok(addr) \ + ((unsigned long)(addr) < (current_thread_info()->addr_limit.seg)) #define get_ds() (KERNEL_DS) @@ -76,31 +66,8 @@ static inline int __access_ok(unsigned long addr, unsigned long size) return ((addr >= memory_start) && ((addr + size) < memory_end)); } #else /* CONFIG_MMU */ -static inline mm_segment_t get_fs(void) -{ - return MAKE_MM_SEG(test_thread_flag(TIF_USERSPACE)); -} - -static inline void set_fs(mm_segment_t s) -{ - unsigned long ti, flag; - __asm__ __volatile__( - "stc r7_bank, %0\n\t" - "mov.l @(8,%0), %1\n\t" - "shal %1\n\t" - "cmp/pl %2\n\t" - "rotcr %1\n\t" - "mov.l %1, @(8,%0)" - : "=&r" (ti), "=&r" (flag) - : "r" (s.is_user_space) - : "t"); -/**** - if (s.is_user_space) - set_thread_flag(TIF_USERSPACE); - else - clear_thread_flag(TIF_USERSPACE); -****/ -} +#define get_fs() (current_thread_info()->addr_limit) +#define set_fs(x) (current_thread_info()->addr_limit = (x)) /* * __access_ok: Check if address with size is OK or not. @@ -108,7 +75,7 @@ static inline void set_fs(mm_segment_t s) * We do three checks: * (1) is it user space? * (2) addr + size --> carry? - * (3) addr + size >= 0x80000000 (USER_ADDR_LIMIT) + * (3) addr + size >= 0x80000000 (PAGE_OFFSET) * * (1) (2) (3) | RESULT * 0 0 0 | ok @@ -541,7 +508,7 @@ static __inline__ long __strnlen_user(const char __user *__s, long __n) "3:\n\t" "mov.l 4f, %1\n\t" "jmp @%1\n\t" - " mov %5, %0\n" + " mov #0, %0\n" ".balign 4\n" "4: .long 2b\n" ".previous\n" @@ -550,26 +517,20 @@ static __inline__ long __strnlen_user(const char __user *__s, long __n) " .long 1b,3b\n" ".previous" : "=z" (res), "=&r" (__dummy) - : "0" (0), "r" (__s), "r" (__n), "i" (-EFAULT) + : "0" (0), "r" (__s), "r" (__n) : "t"); return res; } static __inline__ long strnlen_user(const char __user *s, long n) { - if (!access_ok(VERIFY_READ, s, n)) + if (!__addr_ok(s)) return 0; else return __strnlen_user(s, n); } -static __inline__ long strlen_user(const char __user *s) -{ - if (!access_ok(VERIFY_READ, s, 0)) - return 0; - else - return __strnlen_user(s, ~0UL >> 1); -} +#define strlen_user(str) strnlen_user(str, ~0UL >> 1) /* * The exception table consists of pairs of addresses: the first is the -- cgit v1.2.3 From af514ca7d27b31e3c278e1331f0ebdb3ad385a90 Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Wed, 27 Sep 2006 17:11:32 +0900 Subject: sh: Rename rtc_get/set_time() to avoid RTC_CLASS conflict. We have a clash with RTC_CLASS over these names, so we change them.. Signed-off-by: Paul Mundt --- arch/sh/boards/dreamcast/rtc.c | 4 ++-- arch/sh/boards/landisk/rtc.c | 17 ++++------------- arch/sh/boards/mpc1211/rtc.c | 4 ++-- arch/sh/boards/sh03/rtc.c | 9 ++++----- arch/sh/boards/snapgear/rtc.c | 8 ++++---- arch/sh/kernel/time.c | 14 +++++++------- arch/sh/kernel/timers/timer-tmu.c | 6 +++--- include/asm-sh/rtc.h | 4 ++-- 8 files changed, 28 insertions(+), 38 deletions(-) (limited to 'include') diff --git a/arch/sh/boards/dreamcast/rtc.c b/arch/sh/boards/dreamcast/rtc.c index 44420494dc22..b3a876a3b859 100644 --- a/arch/sh/boards/dreamcast/rtc.c +++ b/arch/sh/boards/dreamcast/rtc.c @@ -75,7 +75,7 @@ int aica_rtc_settimeofday(const time_t secs) void aica_time_init(void) { - rtc_get_time = aica_rtc_gettimeofday; - rtc_set_time = aica_rtc_settimeofday; + rtc_sh_get_time = aica_rtc_gettimeofday; + rtc_sh_set_time = aica_rtc_settimeofday; } diff --git a/arch/sh/boards/landisk/rtc.c b/arch/sh/boards/landisk/rtc.c index d666aa63303f..35ba726a0979 100644 --- a/arch/sh/boards/landisk/rtc.c +++ b/arch/sh/boards/landisk/rtc.c @@ -16,17 +16,9 @@ #include #include #include +#include +#include -#ifndef BCD_TO_BIN -#define BCD_TO_BIN(val) ((val)=((val)&15) + ((val)>>4)*10) -#endif - -#ifndef BIN_TO_BCD -#define BIN_TO_BCD(val) ((val)=(((val)/10)<<4) + (val)%10) -#endif - -extern void (*rtc_get_time) (struct timespec *); -extern int (*rtc_set_time) (const time_t); extern spinlock_t rtc_lock; extern void @@ -94,9 +86,8 @@ int landisk_rtc_settimeofday(const time_t secs) return retval; } - void landisk_time_init(void) { - rtc_get_time = landisk_rtc_gettimeofday; - rtc_set_time = landisk_rtc_settimeofday; + rtc_sh_get_time = landisk_rtc_gettimeofday; + rtc_sh_set_time = landisk_rtc_settimeofday; } diff --git a/arch/sh/boards/mpc1211/rtc.c b/arch/sh/boards/mpc1211/rtc.c index a76c655dceee..03b123a4bba4 100644 --- a/arch/sh/boards/mpc1211/rtc.c +++ b/arch/sh/boards/mpc1211/rtc.c @@ -130,7 +130,7 @@ int mpc1211_rtc_settimeofday(const struct timeval *tv) void mpc1211_time_init(void) { - rtc_get_time = mpc1211_rtc_gettimeofday; - rtc_set_time = mpc1211_rtc_settimeofday; + rtc_sh_get_time = mpc1211_rtc_gettimeofday; + rtc_sh_set_time = mpc1211_rtc_settimeofday; } diff --git a/arch/sh/boards/sh03/rtc.c b/arch/sh/boards/sh03/rtc.c index d609863cfe53..0a9266bb51c5 100644 --- a/arch/sh/boards/sh03/rtc.c +++ b/arch/sh/boards/sh03/rtc.c @@ -10,9 +10,10 @@ #include #include #include -#include #include #include +#include +#include #define RTC_BASE 0xb0000000 #define RTC_SEC1 (RTC_BASE + 0) @@ -34,8 +35,6 @@ #define RTC_BUSY 1 #define RTC_STOP 2 -extern void (*rtc_get_time)(struct timespec *); -extern int (*rtc_set_time)(const time_t); extern spinlock_t rtc_lock; unsigned long get_cmos_time(void) @@ -128,6 +127,6 @@ int sh03_rtc_settimeofday(const time_t secs) void sh03_time_init(void) { - rtc_get_time = sh03_rtc_gettimeofday; - rtc_set_time = sh03_rtc_settimeofday; + rtc_sh_get_time = sh03_rtc_gettimeofday; + rtc_sh_set_time = sh03_rtc_settimeofday; } diff --git a/arch/sh/boards/snapgear/rtc.c b/arch/sh/boards/snapgear/rtc.c index 287bc4ed3ac7..722479deb55a 100644 --- a/arch/sh/boards/snapgear/rtc.c +++ b/arch/sh/boards/snapgear/rtc.c @@ -165,11 +165,11 @@ void __init secureedge5410_rtc_init(void) } if (use_ds1302) { - rtc_get_time = snapgear_rtc_gettimeofday; - rtc_set_time = snapgear_rtc_settimeofday; + rtc_sh_get_time = snapgear_rtc_gettimeofday; + rtc_sh_set_time = snapgear_rtc_settimeofday; } else { - rtc_get_time = sh_rtc_gettimeofday; - rtc_set_time = sh_rtc_settimeofday; + rtc_sh_get_time = sh_rtc_gettimeofday; + rtc_sh_set_time = sh_rtc_settimeofday; } printk("SnapGear RTC: using %s rtc.\n", use_ds1302 ? "ds1302" : "internal"); diff --git a/arch/sh/kernel/time.c b/arch/sh/kernel/time.c index c8db6ca4f9d1..8acd70bffe76 100644 --- a/arch/sh/kernel/time.c +++ b/arch/sh/kernel/time.c @@ -29,11 +29,11 @@ EXPORT_SYMBOL(rtc_lock); /* XXX: Can we initialize this in a routine somewhere? Dreamcast doesn't want * these routines anywhere... */ #ifdef CONFIG_SH_RTC -void (*rtc_get_time)(struct timespec *) = sh_rtc_gettimeofday; -int (*rtc_set_time)(const time_t) = sh_rtc_settimeofday; +void (*rtc_sh_get_time)(struct timespec *) = sh_rtc_gettimeofday; +int (*rtc_sh_set_time)(const time_t) = sh_rtc_settimeofday; #else -void (*rtc_get_time)(struct timespec *); -int (*rtc_set_time)(const time_t); +void (*rtc_sh_get_time)(struct timespec *); +int (*rtc_sh_set_time)(const time_t); #endif /* @@ -135,7 +135,7 @@ void handle_timer_tick(struct pt_regs *regs) 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 (rtc_set_time(xtime.tv_sec) == 0) + if (rtc_sh_set_time(xtime.tv_sec) == 0) last_rtc_update = xtime.tv_sec; else /* do it again in 60s */ @@ -193,8 +193,8 @@ void __init time_init(void) clk_init(); - if (rtc_get_time) { - rtc_get_time(&xtime); + if (rtc_sh_get_time) { + rtc_sh_get_time(&xtime); } else { xtime.tv_sec = mktime(2000, 1, 1, 0, 0, 0); xtime.tv_nsec = 0; diff --git a/arch/sh/kernel/timers/timer-tmu.c b/arch/sh/kernel/timers/timer-tmu.c index ea4bdf8cdf0d..205816fcf0da 100644 --- a/arch/sh/kernel/timers/timer-tmu.c +++ b/arch/sh/kernel/timers/timer-tmu.c @@ -132,17 +132,17 @@ static unsigned long tmu_timer_get_frequency(void) ctrl_outl(0xffffffff, TMU0_TCOR); ctrl_outl(0xffffffff, TMU0_TCNT); - rtc_get_time(&ts2); + rtc_sh_get_time(&ts2); do { - rtc_get_time(&ts1); + rtc_sh_get_time(&ts1); } while (ts1.tv_nsec == ts2.tv_nsec && ts1.tv_sec == ts2.tv_sec); /* actually start the timer */ ctrl_outb(TMU_TSTR_INIT, TMU_TSTR); do { - rtc_get_time(&ts2); + rtc_sh_get_time(&ts2); } while (ts1.tv_nsec == ts2.tv_nsec && ts1.tv_sec == ts2.tv_sec); freq = 0xffffffff - ctrl_inl(TMU0_TCNT); diff --git a/include/asm-sh/rtc.h b/include/asm-sh/rtc.h index cea9cdf9b925..4c7be859c9c0 100644 --- a/include/asm-sh/rtc.h +++ b/include/asm-sh/rtc.h @@ -8,8 +8,8 @@ extern void sh_rtc_gettimeofday(struct timespec *ts); extern int sh_rtc_settimeofday(const time_t secs); extern void (*board_time_init)(void); -extern void (*rtc_get_time)(struct timespec *); -extern int (*rtc_set_time)(const time_t); +extern void (*rtc_sh_get_time)(struct timespec *); +extern int (*rtc_sh_set_time)(const time_t); /* RCR1 Bits */ #define RCR1_CF 0x80 /* Carry Flag */ -- cgit v1.2.3 From 4b565680d16300acab0ff167e24f0ea289a6bd5d Mon Sep 17 00:00:00 2001 From: Takashi YOSHII Date: Wed, 27 Sep 2006 17:15:32 +0900 Subject: sh: math-emu support This implements initial math-emu support, aimed primarily at SH-3. Signed-off-by: Takashi YOSHII Signed-off-by: Paul Mundt --- arch/sh/Kconfig | 9 + arch/sh/Makefile | 1 + arch/sh/kernel/traps.c | 164 +++++++++--- arch/sh/math-emu/Makefile | 1 + arch/sh/math-emu/math.c | 624 +++++++++++++++++++++++++++++++++++++++++++ arch/sh/math-emu/sfp-util.h | 72 +++++ include/asm-sh/sfp-machine.h | 86 ++++++ 7 files changed, 918 insertions(+), 39 deletions(-) create mode 100644 arch/sh/math-emu/Makefile create mode 100644 arch/sh/math-emu/math.c create mode 100644 arch/sh/math-emu/sfp-util.h create mode 100644 include/asm-sh/sfp-machine.h (limited to 'include') diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig index d1d724447826..07d6d699e9c2 100644 --- a/arch/sh/Kconfig +++ b/arch/sh/Kconfig @@ -339,6 +339,15 @@ config SH_FPU This option must be set in order to enable the FPU. +config SH_FPU_EMU + bool "FPU emulation support" + depends on !SH_FPU && EXPERIMENTAL + default n + help + Selecting this option will enable support for software FPU emulation. + Most SH-3 users will want to say Y here, whereas most SH-4 users will + want to say N. + config SH_DSP bool "DSP support" depends on !CPU_SH4 diff --git a/arch/sh/Makefile b/arch/sh/Makefile index 859285d47a29..13b688b13e1c 100644 --- a/arch/sh/Makefile +++ b/arch/sh/Makefile @@ -79,6 +79,7 @@ head-y := arch/sh/kernel/head.o arch/sh/kernel/init_task.o LIBGCC := $(shell $(CC) $(CFLAGS) -print-libgcc-file-name) core-y += arch/sh/kernel/ arch/sh/mm/ +core-$(CONFIG_SH_FPU_EMU) += arch/sh/math-emu/ # Boards machdir-$(CONFIG_SH_SOLUTION_ENGINE) := se/770x diff --git a/arch/sh/kernel/traps.c b/arch/sh/kernel/traps.c index 21bef1b5f991..95c810b3c97e 100644 --- a/arch/sh/kernel/traps.c +++ b/arch/sh/kernel/traps.c @@ -36,40 +36,15 @@ #ifdef CONFIG_SH_KGDB #include -#define CHK_REMOTE_DEBUG(regs) \ -{ \ - if ((kgdb_debug_hook != (kgdb_debug_hook_t *) NULL) && (!user_mode(regs))) \ - { \ - (*kgdb_debug_hook)(regs); \ - } \ +#define CHK_REMOTE_DEBUG(regs) \ +{ \ + if (kgdb_debug_hook && !user_mode(regs))\ + (*kgdb_debug_hook)(regs); \ } #else #define CHK_REMOTE_DEBUG(regs) #endif -#define DO_ERROR(trapnr, signr, str, name, tsk) \ -asmlinkage void do_##name(unsigned long r4, unsigned long r5, \ - unsigned long r6, unsigned long r7, \ - struct pt_regs regs) \ -{ \ - unsigned long error_code; \ - \ - /* Check if it's a DSP instruction */ \ - if (is_dsp_inst(®s)) { \ - /* Enable DSP mode, and restart instruction. */ \ - regs.sr |= SR_DSP; \ - return; \ - } \ - \ - asm volatile("stc r2_bank, %0": "=r" (error_code)); \ - local_irq_enable(); \ - tsk->thread.error_code = error_code; \ - tsk->thread.trap_no = trapnr; \ - CHK_REMOTE_DEBUG(®s); \ - force_sig(signr, tsk); \ - die_if_no_fixup(str,®s,error_code); \ -} - #ifdef CONFIG_CPU_SH2 #define TRAP_RESERVED_INST 4 #define TRAP_ILLEGAL_SLOT_INST 6 @@ -575,8 +550,117 @@ int is_dsp_inst(struct pt_regs *regs) #define is_dsp_inst(regs) (0) #endif /* CONFIG_SH_DSP */ -DO_ERROR(TRAP_RESERVED_INST, SIGILL, "reserved instruction", reserved_inst, current) -DO_ERROR(TRAP_ILLEGAL_SLOT_INST, SIGILL, "illegal slot instruction", illegal_slot_inst, current) +extern int do_fpu_inst(unsigned short, struct pt_regs*); + +asmlinkage void do_reserved_inst(unsigned long r4, unsigned long r5, + unsigned long r6, unsigned long r7, + struct pt_regs regs) +{ + unsigned long error_code; + struct task_struct *tsk = current; + +#ifdef CONFIG_SH_FPU_EMU + unsigned short inst; + int err; + + get_user(inst, (unsigned short*)regs.pc); + + err = do_fpu_inst(inst, ®s); + if (!err) { + regs.pc += 2; + return; + } + /* not a FPU inst. */ +#endif + +#ifdef CONFIG_SH_DSP + /* Check if it's a DSP instruction */ + if (is_dsp_inst(®s)) { + /* Enable DSP mode, and restart instruction. */ + regs.sr |= SR_DSP; + return; + } +#endif + + asm volatile("stc r2_bank, %0": "=r" (error_code)); + local_irq_enable(); + tsk->thread.error_code = error_code; + tsk->thread.trap_no = TRAP_RESERVED_INST; + CHK_REMOTE_DEBUG(®s); + force_sig(SIGILL, tsk); + die_if_no_fixup("reserved instruction", ®s, error_code); +} + +#ifdef CONFIG_SH_FPU_EMU +static int emulate_branch(unsigned short inst, struct pt_regs* regs) +{ + /* + * bfs: 8fxx: PC+=d*2+4; + * bts: 8dxx: PC+=d*2+4; + * bra: axxx: PC+=D*2+4; + * bsr: bxxx: PC+=D*2+4 after PR=PC+4; + * braf:0x23: PC+=Rn*2+4; + * bsrf:0x03: PC+=Rn*2+4 after PR=PC+4; + * jmp: 4x2b: PC=Rn; + * jsr: 4x0b: PC=Rn after PR=PC+4; + * rts: 000b: PC=PR; + */ + if ((inst & 0xfd00) == 0x8d00) { + regs->pc += SH_PC_8BIT_OFFSET(inst); + return 0; + } + + if ((inst & 0xe000) == 0xa000) { + regs->pc += SH_PC_12BIT_OFFSET(inst); + return 0; + } + + if ((inst & 0xf0df) == 0x0003) { + regs->pc += regs->regs[(inst & 0x0f00) >> 8] + 4; + return 0; + } + + if ((inst & 0xf0df) == 0x400b) { + regs->pc = regs->regs[(inst & 0x0f00) >> 8]; + return 0; + } + + if ((inst & 0xffff) == 0x000b) { + regs->pc = regs->pr; + return 0; + } + + return 1; +} +#endif + +asmlinkage void do_illegal_slot_inst(unsigned long r4, unsigned long r5, + unsigned long r6, unsigned long r7, + struct pt_regs regs) +{ + unsigned long error_code; + struct task_struct *tsk = current; +#ifdef CONFIG_SH_FPU_EMU + unsigned short inst; + + get_user(inst, (unsigned short *)regs.pc + 1); + if (!do_fpu_inst(inst, ®s)) { + get_user(inst, (unsigned short *)regs.pc); + if (!emulate_branch(inst, ®s)) + return; + /* fault in branch.*/ + } + /* not a FPU inst. */ +#endif + + asm volatile("stc r2_bank, %0": "=r" (error_code)); + local_irq_enable(); + tsk->thread.error_code = error_code; + tsk->thread.trap_no = TRAP_RESERVED_INST; + CHK_REMOTE_DEBUG(®s); + force_sig(SIGILL, tsk); + die_if_no_fixup("illegal slot instruction", ®s, error_code); +} asmlinkage void do_exception_error(unsigned long r4, unsigned long r5, unsigned long r6, unsigned long r7, @@ -634,14 +718,16 @@ void __init trap_init(void) exception_handling_table[TRAP_ILLEGAL_SLOT_INST] = (void *)do_illegal_slot_inst; -#ifdef CONFIG_CPU_SH4 - if (!(cpu_data->flags & CPU_HAS_FPU)) { - /* For SH-4 lacking an FPU, treat floating point instructions - as reserved. */ - /* entry 64 corresponds to EXPEVT=0x800 */ - exception_handling_table[64] = (void *)do_reserved_inst; - exception_handling_table[65] = (void *)do_illegal_slot_inst; - } +#if defined(CONFIG_CPU_SH4) && !defined(CONFIG_SH_FPU) || \ + defined(CONFIG_SH_FPU_EMU) + /* + * For SH-4 lacking an FPU, treat floating point instructions as + * reserved. They'll be handled in the math-emu case, or faulted on + * otherwise. + */ + /* entry 64 corresponds to EXPEVT=0x800 */ + exception_handling_table[64] = (void *)do_reserved_inst; + exception_handling_table[65] = (void *)do_illegal_slot_inst; #endif /* Setup VBR for boot cpu */ diff --git a/arch/sh/math-emu/Makefile b/arch/sh/math-emu/Makefile new file mode 100644 index 000000000000..638b342c781a --- /dev/null +++ b/arch/sh/math-emu/Makefile @@ -0,0 +1 @@ +obj-y := math.o diff --git a/arch/sh/math-emu/math.c b/arch/sh/math-emu/math.c new file mode 100644 index 000000000000..26b6046814fd --- /dev/null +++ b/arch/sh/math-emu/math.c @@ -0,0 +1,624 @@ +/* + * arch/sh/math-emu/math.c + * + * Copyright (C) 2006 Takashi YOSHII + * + * 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 +#include + +#include "sfp-util.h" +#include +#include +#include + +#define FPUL (fregs->fpul) +#define FPSCR (fregs->fpscr) +#define FPSCR_RM (FPSCR&3) +#define FPSCR_DN ((FPSCR>>18)&1) +#define FPSCR_PR ((FPSCR>>19)&1) +#define FPSCR_SZ ((FPSCR>>20)&1) +#define FPSCR_FR ((FPSCR>>21)&1) +#define FPSCR_MASK 0x003fffffUL + +#define BANK(n) (n^(FPSCR_FR?16:0)) +#define FR ((unsigned long*)(fregs->fp_regs)) +#define FR0 (FR[BANK(0)]) +#define FRn (FR[BANK(n)]) +#define FRm (FR[BANK(m)]) +#define DR ((unsigned long long*)(fregs->fp_regs)) +#define DRn (DR[BANK(n)/2]) +#define DRm (DR[BANK(m)/2]) + +#define XREG(n) (n^16) +#define XFn (FR[BANK(XREG(n))]) +#define XFm (FR[BANK(XREG(m))]) +#define XDn (DR[BANK(XREG(n))/2]) +#define XDm (DR[BANK(XREG(m))/2]) + +#define R0 (regs->regs[0]) +#define Rn (regs->regs[n]) +#define Rm (regs->regs[m]) + +#define WRITE(d,a) ({if(put_user(d, (typeof (d)*)a)) return -EFAULT;}) +#define READ(d,a) ({if(get_user(d, (typeof (d)*)a)) return -EFAULT;}) + +#define PACK_S(r,f) FP_PACK_SP(&r,f) +#define UNPACK_S(f,r) FP_UNPACK_SP(f,&r) +#define PACK_D(r,f) \ + {u32 t[2]; FP_PACK_DP(t,f); ((u32*)&r)[0]=t[1]; ((u32*)&r)[1]=t[0];} +#define UNPACK_D(f,r) \ + {u32 t[2]; t[0]=((u32*)&r)[1]; t[1]=((u32*)&r)[0]; FP_UNPACK_DP(f,t);} + +// 2 args instructions. +#define BOTH_PRmn(op,x) \ + FP_DECL_EX; if(FPSCR_PR) op(D,x,DRm,DRn); else op(S,x,FRm,FRn); + +#define CMP_X(SZ,R,M,N) do{ \ + FP_DECL_##SZ(Fm); FP_DECL_##SZ(Fn); \ + UNPACK_##SZ(Fm, M); UNPACK_##SZ(Fn, N); \ + FP_CMP_##SZ(R, Fn, Fm, 2); }while(0) +#define EQ_X(SZ,R,M,N) do{ \ + FP_DECL_##SZ(Fm); FP_DECL_##SZ(Fn); \ + UNPACK_##SZ(Fm, M); UNPACK_##SZ(Fn, N); \ + FP_CMP_EQ_##SZ(R, Fn, Fm); }while(0) +#define CMP(OP) ({ int r; BOTH_PRmn(OP##_X,r); r; }) + +static int +fcmp_gt(struct sh_fpu_soft_struct *fregs, struct pt_regs *regs, int m, int n) +{ + if (CMP(CMP) > 0) + regs->sr |= 1; + else + regs->sr &= ~1; + + return 0; +} + +static int +fcmp_eq(struct sh_fpu_soft_struct *fregs, struct pt_regs *regs, int m, int n) +{ + if (CMP(CMP /*EQ*/) == 0) + regs->sr |= 1; + else + regs->sr &= ~1; + return 0; +} + +#define ARITH_X(SZ,OP,M,N) do{ \ + FP_DECL_##SZ(Fm); FP_DECL_##SZ(Fn); FP_DECL_##SZ(Fr); \ + UNPACK_##SZ(Fm, M); UNPACK_##SZ(Fn, N); \ + FP_##OP##_##SZ(Fr, Fn, Fm); \ + PACK_##SZ(N, Fr); }while(0) + +static int +fadd(struct sh_fpu_soft_struct *fregs, struct pt_regs *regs, int m, int n) +{ + BOTH_PRmn(ARITH_X, ADD); + return 0; +} + +static int +fsub(struct sh_fpu_soft_struct *fregs, struct pt_regs *regs, int m, int n) +{ + BOTH_PRmn(ARITH_X, SUB); + return 0; +} + +static int +fmul(struct sh_fpu_soft_struct *fregs, struct pt_regs *regs, int m, int n) +{ + BOTH_PRmn(ARITH_X, MUL); + return 0; +} + +static int +fdiv(struct sh_fpu_soft_struct *fregs, struct pt_regs *regs, int m, int n) +{ + BOTH_PRmn(ARITH_X, DIV); + return 0; +} + +static int +fmac(struct sh_fpu_soft_struct *fregs, struct pt_regs *regs, int m, int n) +{ + FP_DECL_EX; + FP_DECL_S(Fr); + FP_DECL_S(Ft); + FP_DECL_S(F0); + FP_DECL_S(Fm); + FP_DECL_S(Fn); + UNPACK_S(F0, FR0); + UNPACK_S(Fm, FRm); + UNPACK_S(Fn, FRn); + FP_MUL_S(Ft, Fm, F0); + FP_ADD_S(Fr, Fn, Ft); + PACK_S(FRn, Fr); + return 0; +} + +// to process fmov's extention (odd n for DR access XD). +#define FMOV_EXT(x) if(x&1) x+=16-1 + +static int +fmov_idx_reg(struct sh_fpu_soft_struct *fregs, struct pt_regs *regs, int m, + int n) +{ + if (FPSCR_SZ) { + FMOV_EXT(n); + READ(FRn, Rm + R0 + 4); + n++; + READ(FRn, Rm + R0); + } else { + READ(FRn, Rm + R0); + } + + return 0; +} + +static int +fmov_mem_reg(struct sh_fpu_soft_struct *fregs, struct pt_regs *regs, int m, + int n) +{ + if (FPSCR_SZ) { + FMOV_EXT(n); + READ(FRn, Rm + 4); + n++; + READ(FRn, Rm); + } else { + READ(FRn, Rm); + } + + return 0; +} + +static int +fmov_inc_reg(struct sh_fpu_soft_struct *fregs, struct pt_regs *regs, int m, + int n) +{ + if (FPSCR_SZ) { + FMOV_EXT(n); + READ(FRn, Rm + 4); + n++; + READ(FRn, Rm); + Rm += 8; + } else { + READ(FRn, Rm); + Rm += 4; + } + + return 0; +} + +static int +fmov_reg_idx(struct sh_fpu_soft_struct *fregs, struct pt_regs *regs, int m, + int n) +{ + if (FPSCR_SZ) { + FMOV_EXT(m); + WRITE(FRm, Rn + R0 + 4); + m++; + WRITE(FRm, Rn + R0); + } else { + WRITE(FRm, Rn + R0); + } + + return 0; +} + +static int +fmov_reg_mem(struct sh_fpu_soft_struct *fregs, struct pt_regs *regs, int m, + int n) +{ + if (FPSCR_SZ) { + FMOV_EXT(m); + WRITE(FRm, Rn + 4); + m++; + WRITE(FRm, Rn); + } else { + WRITE(FRm, Rn); + } + + return 0; +} + +static int +fmov_reg_dec(struct sh_fpu_soft_struct *fregs, struct pt_regs *regs, int m, + int n) +{ + if (FPSCR_SZ) { + FMOV_EXT(m); + Rn -= 8; + WRITE(FRm, Rn + 4); + m++; + WRITE(FRm, Rn); + } else { + Rn -= 4; + WRITE(FRm, Rn); + } + + return 0; +} + +static int +fmov_reg_reg(struct sh_fpu_soft_struct *fregs, struct pt_regs *regs, int m, + int n) +{ + if (FPSCR_SZ) { + FMOV_EXT(m); + FMOV_EXT(n); + DRn = DRm; + } else { + FRn = FRm; + } + + return 0; +} + +static int +fnop_mn(struct sh_fpu_soft_struct *fregs, struct pt_regs *regs, int m, int n) +{ + return -EINVAL; +} + +// 1 arg instructions. +#define NOTYETn(i) static int i(struct sh_fpu_soft_struct *fregs, int n) \ + { printk( #i " not yet done.\n"); return 0; } + +NOTYETn(ftrv) +NOTYETn(fsqrt) +NOTYETn(fipr) +NOTYETn(fsca) +NOTYETn(fsrra) + +#define EMU_FLOAT_X(SZ,N) do { \ + FP_DECL_##SZ(Fn); \ + FP_FROM_INT_##SZ(Fn, FPUL, 32, int); \ + PACK_##SZ(N, Fn); }while(0) +static int ffloat(struct sh_fpu_soft_struct *fregs, int n) +{ + FP_DECL_EX; + + if (FPSCR_PR) + EMU_FLOAT_X(D, DRn); + else + EMU_FLOAT_X(S, FRn); + + return 0; +} + +#define EMU_FTRC_X(SZ,N) do { \ + FP_DECL_##SZ(Fn); \ + UNPACK_##SZ(Fn, N); \ + FP_TO_INT_##SZ(FPUL, Fn, 32, 1); }while(0) +static int ftrc(struct sh_fpu_soft_struct *fregs, int n) +{ + FP_DECL_EX; + + if (FPSCR_PR) + EMU_FTRC_X(D, DRn); + else + EMU_FTRC_X(S, FRn); + + return 0; +} + +static int fcnvsd(struct sh_fpu_soft_struct *fregs, int n) +{ + FP_DECL_EX; + FP_DECL_S(Fn); + FP_DECL_D(Fr); + UNPACK_S(Fn, FPUL); + FP_CONV(D, S, 2, 1, Fr, Fn); + PACK_D(DRn, Fr); + return 0; +} + +static int fcnvds(struct sh_fpu_soft_struct *fregs, int n) +{ + FP_DECL_EX; + FP_DECL_D(Fn); + FP_DECL_S(Fr); + UNPACK_D(Fn, DRn); + FP_CONV(S, D, 1, 2, Fr, Fn); + PACK_S(FPUL, Fr); + return 0; +} + +static int fxchg(struct sh_fpu_soft_struct *fregs, int flag) +{ + FPSCR ^= flag; + return 0; +} + +static int fsts(struct sh_fpu_soft_struct *fregs, int n) +{ + FRn = FPUL; + return 0; +} + +static int flds(struct sh_fpu_soft_struct *fregs, int n) +{ + FPUL = FRn; + return 0; +} + +static int fneg(struct sh_fpu_soft_struct *fregs, int n) +{ + FRn ^= (1 << (_FP_W_TYPE_SIZE - 1)); + return 0; +} + +static int fabs(struct sh_fpu_soft_struct *fregs, int n) +{ + FRn &= ~(1 << (_FP_W_TYPE_SIZE - 1)); + return 0; +} + +static int fld0(struct sh_fpu_soft_struct *fregs, int n) +{ + FRn = 0; + return 0; +} + +static int fld1(struct sh_fpu_soft_struct *fregs, int n) +{ + FRn = (_FP_EXPBIAS_S << (_FP_FRACBITS_S - 1)); + return 0; +} + +static int fnop_n(struct sh_fpu_soft_struct *fregs, int n) +{ + return -EINVAL; +} + +/// Instruction decoders. + +static int id_fxfd(struct sh_fpu_soft_struct *, int); +static int id_fnxd(struct sh_fpu_soft_struct *, struct pt_regs *, int, int); + +static int (*fnxd[])(struct sh_fpu_soft_struct *, int) = { + fsts, flds, ffloat, ftrc, fneg, fabs, fsqrt, fsrra, + fld0, fld1, fcnvsd, fcnvds, fnop_n, fnop_n, fipr, id_fxfd +}; + +static int (*fnmx[])(struct sh_fpu_soft_struct *, struct pt_regs *, int, int) = { + fadd, fsub, fmul, fdiv, fcmp_eq, fcmp_gt, fmov_idx_reg, fmov_reg_idx, + fmov_mem_reg, fmov_inc_reg, fmov_reg_mem, fmov_reg_dec, + fmov_reg_reg, id_fnxd, fmac, fnop_mn}; + +static int id_fxfd(struct sh_fpu_soft_struct *fregs, int x) +{ + const int flag[] = { FPSCR_SZ, FPSCR_PR, FPSCR_FR, 0 }; + switch (x & 3) { + case 3: + fxchg(fregs, flag[x >> 2]); + break; + case 1: + ftrv(fregs, x - 1); + break; + default: + fsca(fregs, x); + } + return 0; +} + +static int +id_fnxd(struct sh_fpu_soft_struct *fregs, struct pt_regs *regs, int x, int n) +{ + return (fnxd[x])(fregs, n); +} + +static int +id_fnmx(struct sh_fpu_soft_struct *fregs, struct pt_regs *regs, u16 code) +{ + int n = (code >> 8) & 0xf, m = (code >> 4) & 0xf, x = code & 0xf; + return (fnmx[x])(fregs, regs, m, n); +} + +static int +id_sys(struct sh_fpu_soft_struct *fregs, struct pt_regs *regs, u16 code) +{ + int n = ((code >> 8) & 0xf); + unsigned long *reg = (code & 0x0010) ? &FPUL : &FPSCR; + + switch (code & 0xf0ff) { + case 0x005a: + case 0x006a: + Rn = *reg; + break; + case 0x405a: + case 0x406a: + *reg = Rn; + break; + case 0x4052: + case 0x4062: + Rn -= 4; + WRITE(*reg, Rn); + break; + case 0x4056: + case 0x4066: + READ(*reg, Rn); + Rn += 4; + break; + default: + return -EINVAL; + } + + return 0; +} + +static int fpu_emulate(u16 code, struct sh_fpu_soft_struct *fregs, struct pt_regs *regs) +{ + if ((code & 0xf000) == 0xf000) + return id_fnmx(fregs, regs, code); + else + return id_sys(fregs, regs, code); +} + +/** + * denormal_to_double - Given denormalized float number, + * store double float + * + * @fpu: Pointer to sh_fpu_hard structure + * @n: Index to FP register + */ +static void denormal_to_double(struct sh_fpu_hard_struct *fpu, int n) +{ + unsigned long du, dl; + unsigned long x = fpu->fpul; + int exp = 1023 - 126; + + if (x != 0 && (x & 0x7f800000) == 0) { + du = (x & 0x80000000); + while ((x & 0x00800000) == 0) { + x <<= 1; + exp--; + } + x &= 0x007fffff; + du |= (exp << 20) | (x >> 3); + dl = x << 29; + + fpu->fp_regs[n] = du; + fpu->fp_regs[n+1] = dl; + } +} + +/** + * ieee_fpe_handler - Handle denormalized number exception + * + * @regs: Pointer to register structure + * + * Returns 1 when it's handled (should not cause exception). + */ +static int ieee_fpe_handler(struct pt_regs *regs) +{ + unsigned short insn = *(unsigned short *)regs->pc; + unsigned short finsn; + unsigned long nextpc; + int nib[4] = { + (insn >> 12) & 0xf, + (insn >> 8) & 0xf, + (insn >> 4) & 0xf, + insn & 0xf}; + + if (nib[0] == 0xb || + (nib[0] == 0x4 && nib[2] == 0x0 && nib[3] == 0xb)) /* bsr & jsr */ + regs->pr = regs->pc + 4; + + if (nib[0] == 0xa || nib[0] == 0xb) { /* bra & bsr */ + nextpc = regs->pc + 4 + ((short) ((insn & 0xfff) << 4) >> 3); + finsn = *(unsigned short *) (regs->pc + 2); + } else if (nib[0] == 0x8 && nib[1] == 0xd) { /* bt/s */ + if (regs->sr & 1) + nextpc = regs->pc + 4 + ((char) (insn & 0xff) << 1); + else + nextpc = regs->pc + 4; + finsn = *(unsigned short *) (regs->pc + 2); + } else if (nib[0] == 0x8 && nib[1] == 0xf) { /* bf/s */ + if (regs->sr & 1) + nextpc = regs->pc + 4; + else + nextpc = regs->pc + 4 + ((char) (insn & 0xff) << 1); + finsn = *(unsigned short *) (regs->pc + 2); + } else if (nib[0] == 0x4 && nib[3] == 0xb && + (nib[2] == 0x0 || nib[2] == 0x2)) { /* jmp & jsr */ + nextpc = regs->regs[nib[1]]; + finsn = *(unsigned short *) (regs->pc + 2); + } else if (nib[0] == 0x0 && nib[3] == 0x3 && + (nib[2] == 0x0 || nib[2] == 0x2)) { /* braf & bsrf */ + nextpc = regs->pc + 4 + regs->regs[nib[1]]; + finsn = *(unsigned short *) (regs->pc + 2); + } else if (insn == 0x000b) { /* rts */ + nextpc = regs->pr; + finsn = *(unsigned short *) (regs->pc + 2); + } else { + nextpc = regs->pc + 2; + finsn = insn; + } + + if ((finsn & 0xf1ff) == 0xf0ad) { /* fcnvsd */ + struct task_struct *tsk = current; + + if ((tsk->thread.fpu.hard.fpscr & (1 << 17))) { + /* FPU error */ + denormal_to_double (&tsk->thread.fpu.hard, + (finsn >> 8) & 0xf); + tsk->thread.fpu.hard.fpscr &= + ~(FPSCR_CAUSE_MASK | FPSCR_FLAG_MASK); + set_tsk_thread_flag(tsk, TIF_USEDFPU); + } else { + tsk->thread.trap_no = 11; + tsk->thread.error_code = 0; + force_sig(SIGFPE, tsk); + } + + regs->pc = nextpc; + return 1; + } + + return 0; +} + +asmlinkage void do_fpu_error(unsigned long r4, unsigned long r5, + unsigned long r6, unsigned long r7, + struct pt_regs regs) +{ + struct task_struct *tsk = current; + + if (ieee_fpe_handler (®s)) + return; + + regs.pc += 2; + tsk->thread.trap_no = 11; + tsk->thread.error_code = 0; + force_sig(SIGFPE, tsk); +} + +/** + * fpu_init - Initialize FPU registers + * @fpu: Pointer to software emulated FPU registers. + */ +static void fpu_init(struct sh_fpu_soft_struct *fpu) +{ + int i; + + fpu->fpscr = FPSCR_INIT; + fpu->fpul = 0; + + for (i = 0; i < 16; i++) { + fpu->fp_regs[i] = 0; + fpu->xfp_regs[i]= 0; + } +} + +/** + * do_fpu_inst - Handle reserved instructions for FPU emulation + * @inst: instruction code. + * @regs: registers on stack. + */ +int do_fpu_inst(unsigned short inst, struct pt_regs *regs) +{ + struct task_struct *tsk = current; + struct sh_fpu_soft_struct *fpu = &(tsk->thread.fpu.soft); + + if (!test_tsk_thread_flag(tsk, TIF_USEDFPU)) { + /* initialize once. */ + fpu_init(fpu); + set_tsk_thread_flag(tsk, TIF_USEDFPU); + } + + return fpu_emulate(inst, fpu, regs); +} diff --git a/arch/sh/math-emu/sfp-util.h b/arch/sh/math-emu/sfp-util.h new file mode 100644 index 000000000000..8ae1bd310ad0 --- /dev/null +++ b/arch/sh/math-emu/sfp-util.h @@ -0,0 +1,72 @@ +/* + * These are copied from glibc/stdlib/longlong.h + */ + +#define add_ssaaaa(sh, sl, ah, al, bh, bl) \ + do { \ + UWtype __x; \ + __x = (al) + (bl); \ + (sh) = (ah) + (bh) + (__x < (al)); \ + (sl) = __x; \ + } while (0) + +#define sub_ddmmss(sh, sl, ah, al, bh, bl) \ + do { \ + UWtype __x; \ + __x = (al) - (bl); \ + (sh) = (ah) - (bh) - (__x > (al)); \ + (sl) = __x; \ + } while (0) + +#define umul_ppmm(w1, w0, u, v) \ + __asm__ ("dmulu.l %2,%3\n\tsts macl,%1\n\tsts mach,%0" \ + : "=r" ((u32)(w1)), "=r" ((u32)(w0)) \ + : "r" ((u32)(u)), "r" ((u32)(v)) \ + : "macl", "mach") + +#define __ll_B ((UWtype) 1 << (W_TYPE_SIZE / 2)) +#define __ll_lowpart(t) ((UWtype) (t) & (__ll_B - 1)) +#define __ll_highpart(t) ((UWtype) (t) >> (W_TYPE_SIZE / 2)) + +#define udiv_qrnnd(q, r, n1, n0, d) \ + do { \ + UWtype __d1, __d0, __q1, __q0; \ + UWtype __r1, __r0, __m; \ + __d1 = __ll_highpart (d); \ + __d0 = __ll_lowpart (d); \ + \ + __r1 = (n1) % __d1; \ + __q1 = (n1) / __d1; \ + __m = (UWtype) __q1 * __d0; \ + __r1 = __r1 * __ll_B | __ll_highpart (n0); \ + if (__r1 < __m) \ + { \ + __q1--, __r1 += (d); \ + if (__r1 >= (d)) /* i.e. we didn't get carry when adding to __r1 */\ + if (__r1 < __m) \ + __q1--, __r1 += (d); \ + } \ + __r1 -= __m; \ + \ + __r0 = __r1 % __d1; \ + __q0 = __r1 / __d1; \ + __m = (UWtype) __q0 * __d0; \ + __r0 = __r0 * __ll_B | __ll_lowpart (n0); \ + if (__r0 < __m) \ + { \ + __q0--, __r0 += (d); \ + if (__r0 >= (d)) \ + if (__r0 < __m) \ + __q0--, __r0 += (d); \ + } \ + __r0 -= __m; \ + \ + (q) = (UWtype) __q1 * __ll_B | __q0; \ + (r) = __r0; \ + } while (0) + +#define abort() return 0 + +#define __BYTE_ORDER __LITTLE_ENDIAN + + diff --git a/include/asm-sh/sfp-machine.h b/include/asm-sh/sfp-machine.h new file mode 100644 index 000000000000..8a6399a8cfe0 --- /dev/null +++ b/include/asm-sh/sfp-machine.h @@ -0,0 +1,86 @@ +/* Machine-dependent software floating-point definitions. + SuperH 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), + 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 + +#include + +#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. + */ +#define _FP_CHOOSENAN(fs, wc, R, X, Y, OP) \ + do { \ + if ((_FP_FRAC_HIGH_RAW_##fs(X) & _FP_QNANBIT_##fs) \ + && !(_FP_FRAC_HIGH_RAW_##fs(Y) & _FP_QNANBIT_##fs)) \ + { \ + R##_s = Y##_s; \ + _FP_FRAC_COPY_##wc(R,Y); \ + } \ + else \ + { \ + R##_s = X##_s; \ + _FP_FRAC_COPY_##wc(R,X); \ + } \ + R##_c = FP_CLS_NAN; \ + } while (0) + +//#define FP_ROUNDMODE FPSCR_RM +#define FP_DENORM_ZERO 1/*FPSCR_DN*/ + +/* Exception flags. */ +#define FP_EX_INVALID (1<<4) +#define FP_EX_DIVZERO (1<<3) +#define FP_EX_OVERFLOW (1<<2) +#define FP_EX_UNDERFLOW (1<<1) +#define FP_EX_INEXACT (1<<0) + +#endif + -- cgit v1.2.3 From adf1890b0cd63f754b2171b73e4d845c0950d407 Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Wed, 27 Sep 2006 17:17:27 +0900 Subject: sh: Move voyagergx_reg.h to a more sensible place. Other boards require this as well, so move it out of the rts7751r2d directory. Signed-off-by: Paul Mundt --- arch/sh/boards/renesas/rts7751r2d/setup.c | 2 +- arch/sh/cchips/voyagergx/irq.c | 2 +- arch/sh/cchips/voyagergx/setup.c | 2 +- include/asm-sh/rts7751r2d/voyagergx_reg.h | 313 ------------------------------ include/asm-sh/voyagergx.h | 313 ++++++++++++++++++++++++++++++ 5 files changed, 316 insertions(+), 316 deletions(-) delete mode 100644 include/asm-sh/rts7751r2d/voyagergx_reg.h create mode 100644 include/asm-sh/voyagergx.h (limited to 'include') diff --git a/arch/sh/boards/renesas/rts7751r2d/setup.c b/arch/sh/boards/renesas/rts7751r2d/setup.c index f6ce7021feba..bb56c018f2ee 100644 --- a/arch/sh/boards/renesas/rts7751r2d/setup.c +++ b/arch/sh/boards/renesas/rts7751r2d/setup.c @@ -14,7 +14,7 @@ #include #include #include -#include +#include static struct plat_serial8250_port uart_platform_data[] = { { diff --git a/arch/sh/cchips/voyagergx/irq.c b/arch/sh/cchips/voyagergx/irq.c index 036e8f900013..4cfa7c990553 100644 --- a/arch/sh/cchips/voyagergx/irq.c +++ b/arch/sh/cchips/voyagergx/irq.c @@ -32,7 +32,7 @@ #include #include -#include +#include static void disable_voyagergx_irq(unsigned int irq) { diff --git a/arch/sh/cchips/voyagergx/setup.c b/arch/sh/cchips/voyagergx/setup.c index 3a4cfaa9a214..66b2fedd7ad9 100644 --- a/arch/sh/cchips/voyagergx/setup.c +++ b/arch/sh/cchips/voyagergx/setup.c @@ -13,7 +13,7 @@ #include #include #include -#include +#include static int __init setup_voyagergx(void) { diff --git a/include/asm-sh/rts7751r2d/voyagergx_reg.h b/include/asm-sh/rts7751r2d/voyagergx_reg.h deleted file mode 100644 index f031b5d6cf54..000000000000 --- a/include/asm-sh/rts7751r2d/voyagergx_reg.h +++ /dev/null @@ -1,313 +0,0 @@ -/* -------------------------------------------------------------------- */ -/* voyagergx_reg.h */ -/* -------------------------------------------------------------------- */ -/* 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., 675 Mass Ave, Cambridge, MA 02139, USA. - - Copyright 2003 (c) Lineo uSolutions,Inc. -*/ -/* -------------------------------------------------------------------- */ - -#ifndef _VOYAGER_GX_REG_H -#define _VOYAGER_GX_REG_H - -#define VOYAGER_BASE 0xb3e00000 -#define VOYAGER_USBH_BASE (0x40000 + VOYAGER_BASE) -#define VOYAGER_UART_BASE (0x30000 + VOYAGER_BASE) -#define VOYAGER_AC97_BASE (0xa0000 + VOYAGER_BASE) - -#define VOYAGER_IRQ_NUM 32 -#define VOYAGER_IRQ_BASE 50 -#define VOYAGER_USBH_IRQ VOYAGER_IRQ_BASE + 6 -#define VOYAGER_8051_IRQ VOYAGER_IRQ_BASE + 10 -#define VOYAGER_UART0_IRQ VOYAGER_IRQ_BASE + 12 -#define VOYAGER_UART1_IRQ VOYAGER_IRQ_BASE + 13 -#define VOYAGER_AC97_IRQ VOYAGER_IRQ_BASE + 17 - -/* ----- MISC controle register ------------------------------ */ -#define MISC_CTRL (0x000004 + VOYAGER_BASE) -#define MISC_CTRL_USBCLK_48 (3 << 28) -#define MISC_CTRL_USBCLK_96 (2 << 28) -#define MISC_CTRL_USBCLK_CRYSTAL (1 << 28) - -/* ----- GPIO[31:0] register --------------------------------- */ -#define GPIO_MUX_LOW (0x000008 + VOYAGER_BASE) -#define GPIO_MUX_LOW_AC97 0x1F000000 -#define GPIO_MUX_LOW_8051 0x0000ffff -#define GPIO_MUX_LOW_PWM (1 << 29) - -/* ----- GPIO[63:32] register --------------------------------- */ -#define GPIO_MUX_HIGH (0x00000C + VOYAGER_BASE) - -/* ----- DRAM controle register ------------------------------- */ -#define DRAM_CTRL (0x000010 + VOYAGER_BASE) -#define DRAM_CTRL_EMBEDDED (1 << 31) -#define DRAM_CTRL_CPU_BURST_1 (0 << 28) -#define DRAM_CTRL_CPU_BURST_2 (1 << 28) -#define DRAM_CTRL_CPU_BURST_4 (2 << 28) -#define DRAM_CTRL_CPU_BURST_8 (3 << 28) -#define DRAM_CTRL_CPU_CAS_LATENCY (1 << 27) -#define DRAM_CTRL_CPU_SIZE_2 (0 << 24) -#define DRAM_CTRL_CPU_SIZE_4 (1 << 24) -#define DRAM_CTRL_CPU_SIZE_64 (4 << 24) -#define DRAM_CTRL_CPU_SIZE_32 (5 << 24) -#define DRAM_CTRL_CPU_SIZE_16 (6 << 24) -#define DRAM_CTRL_CPU_SIZE_8 (7 << 24) -#define DRAM_CTRL_CPU_COLUMN_SIZE_1024 (0 << 22) -#define DRAM_CTRL_CPU_COLUMN_SIZE_512 (2 << 22) -#define DRAM_CTRL_CPU_COLUMN_SIZE_256 (3 << 22) -#define DRAM_CTRL_CPU_ACTIVE_PRECHARGE (1 << 21) -#define DRAM_CTRL_CPU_RESET (1 << 20) -#define DRAM_CTRL_CPU_BANKS (1 << 19) -#define DRAM_CTRL_CPU_WRITE_PRECHARGE (1 << 18) -#define DRAM_CTRL_BLOCK_WRITE (1 << 17) -#define DRAM_CTRL_REFRESH_COMMAND (1 << 16) -#define DRAM_CTRL_SIZE_4 (0 << 13) -#define DRAM_CTRL_SIZE_8 (1 << 13) -#define DRAM_CTRL_SIZE_16 (2 << 13) -#define DRAM_CTRL_SIZE_32 (3 << 13) -#define DRAM_CTRL_SIZE_64 (4 << 13) -#define DRAM_CTRL_SIZE_2 (5 << 13) -#define DRAM_CTRL_COLUMN_SIZE_256 (0 << 11) -#define DRAM_CTRL_COLUMN_SIZE_512 (2 << 11) -#define DRAM_CTRL_COLUMN_SIZE_1024 (3 << 11) -#define DRAM_CTRL_BLOCK_WRITE_TIME (1 << 10) -#define DRAM_CTRL_BLOCK_WRITE_PRECHARGE (1 << 9) -#define DRAM_CTRL_ACTIVE_PRECHARGE (1 << 8) -#define DRAM_CTRL_RESET (1 << 7) -#define DRAM_CTRL_REMAIN_ACTIVE (1 << 6) -#define DRAM_CTRL_BANKS (1 << 1) -#define DRAM_CTRL_WRITE_PRECHARGE (1 << 0) - -/* ----- Arvitration control register -------------------------- */ -#define ARBITRATION_CTRL (0x000014 + VOYAGER_BASE) -#define ARBITRATION_CTRL_CPUMEM (1 << 29) -#define ARBITRATION_CTRL_INTMEM (1 << 28) -#define ARBITRATION_CTRL_USB_OFF (0 << 24) -#define ARBITRATION_CTRL_USB_PRIORITY_1 (1 << 24) -#define ARBITRATION_CTRL_USB_PRIORITY_2 (2 << 24) -#define ARBITRATION_CTRL_USB_PRIORITY_3 (3 << 24) -#define ARBITRATION_CTRL_USB_PRIORITY_4 (4 << 24) -#define ARBITRATION_CTRL_USB_PRIORITY_5 (5 << 24) -#define ARBITRATION_CTRL_USB_PRIORITY_6 (6 << 24) -#define ARBITRATION_CTRL_USB_PRIORITY_7 (7 << 24) -#define ARBITRATION_CTRL_PANEL_OFF (0 << 20) -#define ARBITRATION_CTRL_PANEL_PRIORITY_1 (1 << 20) -#define ARBITRATION_CTRL_PANEL_PRIORITY_2 (2 << 20) -#define ARBITRATION_CTRL_PANEL_PRIORITY_3 (3 << 20) -#define ARBITRATION_CTRL_PANEL_PRIORITY_4 (4 << 20) -#define ARBITRATION_CTRL_PANEL_PRIORITY_5 (5 << 20) -#define ARBITRATION_CTRL_PANEL_PRIORITY_6 (6 << 20) -#define ARBITRATION_CTRL_PANEL_PRIORITY_7 (7 << 20) -#define ARBITRATION_CTRL_ZVPORT_OFF (0 << 16) -#define ARBITRATION_CTRL_ZVPORTL_PRIORITY_1 (1 << 16) -#define ARBITRATION_CTRL_ZVPORTL_PRIORITY_2 (2 << 16) -#define ARBITRATION_CTRL_ZVPORTL_PRIORITY_3 (3 << 16) -#define ARBITRATION_CTRL_ZVPORTL_PRIORITY_4 (4 << 16) -#define ARBITRATION_CTRL_ZVPORTL_PRIORITY_5 (5 << 16) -#define ARBITRATION_CTRL_ZVPORTL_PRIORITY_6 (6 << 16) -#define ARBITRATION_CTRL_ZVPORTL_PRIORITY_7 (7 << 16) -#define ARBITRATION_CTRL_CMD_INTPR_OFF (0 << 12) -#define ARBITRATION_CTRL_CMD_INTPR_PRIORITY_1 (1 << 12) -#define ARBITRATION_CTRL_CMD_INTPR_PRIORITY_2 (2 << 12) -#define ARBITRATION_CTRL_CMD_INTPR_PRIORITY_3 (3 << 12) -#define ARBITRATION_CTRL_CMD_INTPR_PRIORITY_4 (4 << 12) -#define ARBITRATION_CTRL_CMD_INTPR_PRIORITY_5 (5 << 12) -#define ARBITRATION_CTRL_CMD_INTPR_PRIORITY_6 (6 << 12) -#define ARBITRATION_CTRL_CMD_INTPR_PRIORITY_7 (7 << 12) -#define ARBITRATION_CTRL_DMA_OFF (0 << 8) -#define ARBITRATION_CTRL_DMA_PRIORITY_1 (1 << 8) -#define ARBITRATION_CTRL_DMA_PRIORITY_2 (2 << 8) -#define ARBITRATION_CTRL_DMA_PRIORITY_3 (3 << 8) -#define ARBITRATION_CTRL_DMA_PRIORITY_4 (4 << 8) -#define ARBITRATION_CTRL_DMA_PRIORITY_5 (5 << 8) -#define ARBITRATION_CTRL_DMA_PRIORITY_6 (6 << 8) -#define ARBITRATION_CTRL_DMA_PRIORITY_7 (7 << 8) -#define ARBITRATION_CTRL_VIDEO_OFF (0 << 4) -#define ARBITRATION_CTRL_VIDEO_PRIORITY_1 (1 << 4) -#define ARBITRATION_CTRL_VIDEO_PRIORITY_2 (2 << 4) -#define ARBITRATION_CTRL_VIDEO_PRIORITY_3 (3 << 4) -#define ARBITRATION_CTRL_VIDEO_PRIORITY_4 (4 << 4) -#define ARBITRATION_CTRL_VIDEO_PRIORITY_5 (5 << 4) -#define ARBITRATION_CTRL_VIDEO_PRIORITY_6 (6 << 4) -#define ARBITRATION_CTRL_VIDEO_PRIORITY_7 (7 << 4) -#define ARBITRATION_CTRL_CRT_OFF (0 << 0) -#define ARBITRATION_CTRL_CRT_PRIORITY_1 (1 << 0) -#define ARBITRATION_CTRL_CRT_PRIORITY_2 (2 << 0) -#define ARBITRATION_CTRL_CRT_PRIORITY_3 (3 << 0) -#define ARBITRATION_CTRL_CRT_PRIORITY_4 (4 << 0) -#define ARBITRATION_CTRL_CRT_PRIORITY_5 (5 << 0) -#define ARBITRATION_CTRL_CRT_PRIORITY_6 (6 << 0) -#define ARBITRATION_CTRL_CRT_PRIORITY_7 (7 << 0) - -/* ----- Command list status register -------------------------- */ -#define CMD_INTPR_STATUS (0x000024 + VOYAGER_BASE) - -/* ----- Interrupt status register ----------------------------- */ -#define INT_STATUS (0x00002c + VOYAGER_BASE) -#define INT_STATUS_UH (1 << 6) -#define INT_STATUS_MC (1 << 10) -#define INT_STATUS_U0 (1 << 12) -#define INT_STATUS_U1 (1 << 13) -#define INT_STATUS_AC (1 << 17) - -/* ----- Interrupt mask register ------------------------------ */ -#define VOYAGER_INT_MASK (0x000030 + VOYAGER_BASE) -#define VOYAGER_INT_MASK_AC (1 << 17) - -/* ----- Current Gate register ---------------------------------*/ -#define CURRENT_GATE (0x000038 + VOYAGER_BASE) - -/* ----- Power mode 0 gate register --------------------------- */ -#define POWER_MODE0_GATE (0x000040 + VOYAGER_BASE) -#define POWER_MODE0_GATE_G (1 << 6) -#define POWER_MODE0_GATE_U0 (1 << 7) -#define POWER_MODE0_GATE_U1 (1 << 8) -#define POWER_MODE0_GATE_UH (1 << 11) -#define POWER_MODE0_GATE_AC (1 << 18) - -/* ----- Power mode 1 gate register --------------------------- */ -#define POWER_MODE1_GATE (0x000048 + VOYAGER_BASE) -#define POWER_MODE1_GATE_G (1 << 6) -#define POWER_MODE1_GATE_U0 (1 << 7) -#define POWER_MODE1_GATE_U1 (1 << 8) -#define POWER_MODE1_GATE_UH (1 << 11) -#define POWER_MODE1_GATE_AC (1 << 18) - -/* ----- Power mode 0 clock register -------------------------- */ -#define POWER_MODE0_CLOCK (0x000044 + VOYAGER_BASE) - -/* ----- Power mode 1 clock register -------------------------- */ -#define POWER_MODE1_CLOCK (0x00004C + VOYAGER_BASE) - -/* ----- Power mode controll register ------------------------- */ -#define POWER_MODE_CTRL (0x000054 + VOYAGER_BASE) - -/* ----- Miscellaneous Timing register ------------------------ */ -#define SYSTEM_DRAM_CTRL (0x000068 + VOYAGER_BASE) - -/* ----- PWM register ------------------------------------------*/ -#define PWM_0 (0x010020 + VOYAGER_BASE) -#define PWM_0_HC(x) (((x)&0x0fff)<<20) -#define PWM_0_LC(x) (((x)&0x0fff)<<8 ) -#define PWM_0_CLK_DEV(x) (((x)&0x000f)<<4 ) -#define PWM_0_EN (1<<0) - -/* ----- I2C register ----------------------------------------- */ -#define I2C_BYTECOUNT (0x010040 + VOYAGER_BASE) -#define I2C_CONTROL (0x010041 + VOYAGER_BASE) -#define I2C_STATUS (0x010042 + VOYAGER_BASE) -#define I2C_RESET (0x010042 + VOYAGER_BASE) -#define I2C_SADDRESS (0x010043 + VOYAGER_BASE) -#define I2C_DATA (0x010044 + VOYAGER_BASE) - -/* ----- Controle register bits ----------------------------------------- */ -#define I2C_CONTROL_E (1 << 0) -#define I2C_CONTROL_MODE (1 << 1) -#define I2C_CONTROL_STATUS (1 << 2) -#define I2C_CONTROL_INT (1 << 4) -#define I2C_CONTROL_INTACK (1 << 5) -#define I2C_CONTROL_REPEAT (1 << 6) - -/* ----- Status register bits ----------------------------------------- */ -#define I2C_STATUS_BUSY (1 << 0) -#define I2C_STATUS_ACK (1 << 1) -#define I2C_STATUS_ERROR (1 << 2) -#define I2C_STATUS_COMPLETE (1 << 3) - -/* ----- Reset register ---------------------------------------------- */ -#define I2C_RESET_ERROR (1 << 2) - -/* ----- transmission frequencies ------------------------------------- */ -#define I2C_SADDRESS_SELECT (1 << 0) - -/* ----- Display Controll register ----------------------------------------- */ -#define PANEL_DISPLAY_CTRL (0x080000 + VOYAGER_BASE) -#define PANEL_DISPLAY_CTRL_BIAS (1<<26) -#define PANEL_PAN_CTRL (0x080004 + VOYAGER_BASE) -#define PANEL_COLOR_KEY (0x080008 + VOYAGER_BASE) -#define PANEL_FB_ADDRESS (0x08000C + VOYAGER_BASE) -#define PANEL_FB_WIDTH (0x080010 + VOYAGER_BASE) -#define PANEL_WINDOW_WIDTH (0x080014 + VOYAGER_BASE) -#define PANEL_WINDOW_HEIGHT (0x080018 + VOYAGER_BASE) -#define PANEL_PLANE_TL (0x08001C + VOYAGER_BASE) -#define PANEL_PLANE_BR (0x080020 + VOYAGER_BASE) -#define PANEL_HORIZONTAL_TOTAL (0x080024 + VOYAGER_BASE) -#define PANEL_HORIZONTAL_SYNC (0x080028 + VOYAGER_BASE) -#define PANEL_VERTICAL_TOTAL (0x08002C + VOYAGER_BASE) -#define PANEL_VERTICAL_SYNC (0x080030 + VOYAGER_BASE) -#define PANEL_CURRENT_LINE (0x080034 + VOYAGER_BASE) -#define VIDEO_DISPLAY_CTRL (0x080040 + VOYAGER_BASE) -#define VIDEO_FB_0_ADDRESS (0x080044 + VOYAGER_BASE) -#define VIDEO_FB_WIDTH (0x080048 + VOYAGER_BASE) -#define VIDEO_FB_0_LAST_ADDRESS (0x08004C + VOYAGER_BASE) -#define VIDEO_PLANE_TL (0x080050 + VOYAGER_BASE) -#define VIDEO_PLANE_BR (0x080054 + VOYAGER_BASE) -#define VIDEO_SCALE (0x080058 + VOYAGER_BASE) -#define VIDEO_INITIAL_SCALE (0x08005C + VOYAGER_BASE) -#define VIDEO_YUV_CONSTANTS (0x080060 + VOYAGER_BASE) -#define VIDEO_FB_1_ADDRESS (0x080064 + VOYAGER_BASE) -#define VIDEO_FB_1_LAST_ADDRESS (0x080068 + VOYAGER_BASE) -#define VIDEO_ALPHA_DISPLAY_CTRL (0x080080 + VOYAGER_BASE) -#define VIDEO_ALPHA_FB_ADDRESS (0x080084 + VOYAGER_BASE) -#define VIDEO_ALPHA_FB_WIDTH (0x080088 + VOYAGER_BASE) -#define VIDEO_ALPHA_FB_LAST_ADDRESS (0x08008C + VOYAGER_BASE) -#define VIDEO_ALPHA_PLANE_TL (0x080090 + VOYAGER_BASE) -#define VIDEO_ALPHA_PLANE_BR (0x080094 + VOYAGER_BASE) -#define VIDEO_ALPHA_SCALE (0x080098 + VOYAGER_BASE) -#define VIDEO_ALPHA_INITIAL_SCALE (0x08009C + VOYAGER_BASE) -#define VIDEO_ALPHA_CHROMA_KEY (0x0800A0 + VOYAGER_BASE) -#define PANEL_HWC_ADDRESS (0x0800F0 + VOYAGER_BASE) -#define PANEL_HWC_LOCATION (0x0800F4 + VOYAGER_BASE) -#define PANEL_HWC_COLOR_12 (0x0800F8 + VOYAGER_BASE) -#define PANEL_HWC_COLOR_3 (0x0800FC + VOYAGER_BASE) -#define ALPHA_DISPLAY_CTRL (0x080100 + VOYAGER_BASE) -#define ALPHA_FB_ADDRESS (0x080104 + VOYAGER_BASE) -#define ALPHA_FB_WIDTH (0x080108 + VOYAGER_BASE) -#define ALPHA_PLANE_TL (0x08010C + VOYAGER_BASE) -#define ALPHA_PLANE_BR (0x080110 + VOYAGER_BASE) -#define ALPHA_CHROMA_KEY (0x080114 + VOYAGER_BASE) -#define CRT_DISPLAY_CTRL (0x080200 + VOYAGER_BASE) -#define CRT_FB_ADDRESS (0x080204 + VOYAGER_BASE) -#define CRT_FB_WIDTH (0x080208 + VOYAGER_BASE) -#define CRT_HORIZONTAL_TOTAL (0x08020C + VOYAGER_BASE) -#define CRT_HORIZONTAL_SYNC (0x080210 + VOYAGER_BASE) -#define CRT_VERTICAL_TOTAL (0x080214 + VOYAGER_BASE) -#define CRT_VERTICAL_SYNC (0x080218 + VOYAGER_BASE) -#define CRT_SIGNATURE_ANALYZER (0x08021C + VOYAGER_BASE) -#define CRT_CURRENT_LINE (0x080220 + VOYAGER_BASE) -#define CRT_MONITOR_DETECT (0x080224 + VOYAGER_BASE) -#define CRT_HWC_ADDRESS (0x080230 + VOYAGER_BASE) -#define CRT_HWC_LOCATION (0x080234 + VOYAGER_BASE) -#define CRT_HWC_COLOR_12 (0x080238 + VOYAGER_BASE) -#define CRT_HWC_COLOR_3 (0x08023C + VOYAGER_BASE) -#define CRT_PALETTE_RAM (0x080400 + VOYAGER_BASE) -#define PANEL_PALETTE_RAM (0x080800 + VOYAGER_BASE) -#define VIDEO_PALETTE_RAM (0x080C00 + VOYAGER_BASE) - -/* ----- 8051 Controle register ----------------------------------------- */ -#define VOYAGER_8051_BASE (0x000c0000 + VOYAGER_BASE) -#define VOYAGER_8051_RESET (0x000b0000 + VOYAGER_BASE) -#define VOYAGER_8051_SELECT (0x000b0004 + VOYAGER_BASE) -#define VOYAGER_8051_CPU_INT (0x000b000c + VOYAGER_BASE) - -/* ----- AC97 Controle register ----------------------------------------- */ -#define AC97_TX_SLOT0 (0x00000000 + VOYAGER_AC97_BASE) -#define AC97_CONTROL_STATUS (0x00000080 + VOYAGER_AC97_BASE) -#define AC97C_READ (1 << 19) -#define AC97C_WD_BIT (1 << 2) -#define AC97C_INDEX_MASK 0x7f -/* -------------------------------------------------------------------- */ - -#endif /* _VOYAGER_GX_REG_H */ diff --git a/include/asm-sh/voyagergx.h b/include/asm-sh/voyagergx.h new file mode 100644 index 000000000000..99b0807d1c9f --- /dev/null +++ b/include/asm-sh/voyagergx.h @@ -0,0 +1,313 @@ +/* -------------------------------------------------------------------- */ +/* voyagergx.h */ +/* -------------------------------------------------------------------- */ +/* 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., 675 Mass Ave, Cambridge, MA 02139, USA. + + Copyright 2003 (c) Lineo uSolutions,Inc. +*/ +/* -------------------------------------------------------------------- */ + +#ifndef _VOYAGER_GX_REG_H +#define _VOYAGER_GX_REG_H + +#define VOYAGER_BASE 0xb3e00000 +#define VOYAGER_USBH_BASE (0x40000 + VOYAGER_BASE) +#define VOYAGER_UART_BASE (0x30000 + VOYAGER_BASE) +#define VOYAGER_AC97_BASE (0xa0000 + VOYAGER_BASE) + +#define VOYAGER_IRQ_NUM 32 +#define VOYAGER_IRQ_BASE 50 +#define VOYAGER_USBH_IRQ VOYAGER_IRQ_BASE + 6 +#define VOYAGER_8051_IRQ VOYAGER_IRQ_BASE + 10 +#define VOYAGER_UART0_IRQ VOYAGER_IRQ_BASE + 12 +#define VOYAGER_UART1_IRQ VOYAGER_IRQ_BASE + 13 +#define VOYAGER_AC97_IRQ VOYAGER_IRQ_BASE + 17 + +/* ----- MISC controle register ------------------------------ */ +#define MISC_CTRL (0x000004 + VOYAGER_BASE) +#define MISC_CTRL_USBCLK_48 (3 << 28) +#define MISC_CTRL_USBCLK_96 (2 << 28) +#define MISC_CTRL_USBCLK_CRYSTAL (1 << 28) + +/* ----- GPIO[31:0] register --------------------------------- */ +#define GPIO_MUX_LOW (0x000008 + VOYAGER_BASE) +#define GPIO_MUX_LOW_AC97 0x1F000000 +#define GPIO_MUX_LOW_8051 0x0000ffff +#define GPIO_MUX_LOW_PWM (1 << 29) + +/* ----- GPIO[63:32] register --------------------------------- */ +#define GPIO_MUX_HIGH (0x00000C + VOYAGER_BASE) + +/* ----- DRAM controle register ------------------------------- */ +#define DRAM_CTRL (0x000010 + VOYAGER_BASE) +#define DRAM_CTRL_EMBEDDED (1 << 31) +#define DRAM_CTRL_CPU_BURST_1 (0 << 28) +#define DRAM_CTRL_CPU_BURST_2 (1 << 28) +#define DRAM_CTRL_CPU_BURST_4 (2 << 28) +#define DRAM_CTRL_CPU_BURST_8 (3 << 28) +#define DRAM_CTRL_CPU_CAS_LATENCY (1 << 27) +#define DRAM_CTRL_CPU_SIZE_2 (0 << 24) +#define DRAM_CTRL_CPU_SIZE_4 (1 << 24) +#define DRAM_CTRL_CPU_SIZE_64 (4 << 24) +#define DRAM_CTRL_CPU_SIZE_32 (5 << 24) +#define DRAM_CTRL_CPU_SIZE_16 (6 << 24) +#define DRAM_CTRL_CPU_SIZE_8 (7 << 24) +#define DRAM_CTRL_CPU_COLUMN_SIZE_1024 (0 << 22) +#define DRAM_CTRL_CPU_COLUMN_SIZE_512 (2 << 22) +#define DRAM_CTRL_CPU_COLUMN_SIZE_256 (3 << 22) +#define DRAM_CTRL_CPU_ACTIVE_PRECHARGE (1 << 21) +#define DRAM_CTRL_CPU_RESET (1 << 20) +#define DRAM_CTRL_CPU_BANKS (1 << 19) +#define DRAM_CTRL_CPU_WRITE_PRECHARGE (1 << 18) +#define DRAM_CTRL_BLOCK_WRITE (1 << 17) +#define DRAM_CTRL_REFRESH_COMMAND (1 << 16) +#define DRAM_CTRL_SIZE_4 (0 << 13) +#define DRAM_CTRL_SIZE_8 (1 << 13) +#define DRAM_CTRL_SIZE_16 (2 << 13) +#define DRAM_CTRL_SIZE_32 (3 << 13) +#define DRAM_CTRL_SIZE_64 (4 << 13) +#define DRAM_CTRL_SIZE_2 (5 << 13) +#define DRAM_CTRL_COLUMN_SIZE_256 (0 << 11) +#define DRAM_CTRL_COLUMN_SIZE_512 (2 << 11) +#define DRAM_CTRL_COLUMN_SIZE_1024 (3 << 11) +#define DRAM_CTRL_BLOCK_WRITE_TIME (1 << 10) +#define DRAM_CTRL_BLOCK_WRITE_PRECHARGE (1 << 9) +#define DRAM_CTRL_ACTIVE_PRECHARGE (1 << 8) +#define DRAM_CTRL_RESET (1 << 7) +#define DRAM_CTRL_REMAIN_ACTIVE (1 << 6) +#define DRAM_CTRL_BANKS (1 << 1) +#define DRAM_CTRL_WRITE_PRECHARGE (1 << 0) + +/* ----- Arvitration control register -------------------------- */ +#define ARBITRATION_CTRL (0x000014 + VOYAGER_BASE) +#define ARBITRATION_CTRL_CPUMEM (1 << 29) +#define ARBITRATION_CTRL_INTMEM (1 << 28) +#define ARBITRATION_CTRL_USB_OFF (0 << 24) +#define ARBITRATION_CTRL_USB_PRIORITY_1 (1 << 24) +#define ARBITRATION_CTRL_USB_PRIORITY_2 (2 << 24) +#define ARBITRATION_CTRL_USB_PRIORITY_3 (3 << 24) +#define ARBITRATION_CTRL_USB_PRIORITY_4 (4 << 24) +#define ARBITRATION_CTRL_USB_PRIORITY_5 (5 << 24) +#define ARBITRATION_CTRL_USB_PRIORITY_6 (6 << 24) +#define ARBITRATION_CTRL_USB_PRIORITY_7 (7 << 24) +#define ARBITRATION_CTRL_PANEL_OFF (0 << 20) +#define ARBITRATION_CTRL_PANEL_PRIORITY_1 (1 << 20) +#define ARBITRATION_CTRL_PANEL_PRIORITY_2 (2 << 20) +#define ARBITRATION_CTRL_PANEL_PRIORITY_3 (3 << 20) +#define ARBITRATION_CTRL_PANEL_PRIORITY_4 (4 << 20) +#define ARBITRATION_CTRL_PANEL_PRIORITY_5 (5 << 20) +#define ARBITRATION_CTRL_PANEL_PRIORITY_6 (6 << 20) +#define ARBITRATION_CTRL_PANEL_PRIORITY_7 (7 << 20) +#define ARBITRATION_CTRL_ZVPORT_OFF (0 << 16) +#define ARBITRATION_CTRL_ZVPORTL_PRIORITY_1 (1 << 16) +#define ARBITRATION_CTRL_ZVPORTL_PRIORITY_2 (2 << 16) +#define ARBITRATION_CTRL_ZVPORTL_PRIORITY_3 (3 << 16) +#define ARBITRATION_CTRL_ZVPORTL_PRIORITY_4 (4 << 16) +#define ARBITRATION_CTRL_ZVPORTL_PRIORITY_5 (5 << 16) +#define ARBITRATION_CTRL_ZVPORTL_PRIORITY_6 (6 << 16) +#define ARBITRATION_CTRL_ZVPORTL_PRIORITY_7 (7 << 16) +#define ARBITRATION_CTRL_CMD_INTPR_OFF (0 << 12) +#define ARBITRATION_CTRL_CMD_INTPR_PRIORITY_1 (1 << 12) +#define ARBITRATION_CTRL_CMD_INTPR_PRIORITY_2 (2 << 12) +#define ARBITRATION_CTRL_CMD_INTPR_PRIORITY_3 (3 << 12) +#define ARBITRATION_CTRL_CMD_INTPR_PRIORITY_4 (4 << 12) +#define ARBITRATION_CTRL_CMD_INTPR_PRIORITY_5 (5 << 12) +#define ARBITRATION_CTRL_CMD_INTPR_PRIORITY_6 (6 << 12) +#define ARBITRATION_CTRL_CMD_INTPR_PRIORITY_7 (7 << 12) +#define ARBITRATION_CTRL_DMA_OFF (0 << 8) +#define ARBITRATION_CTRL_DMA_PRIORITY_1 (1 << 8) +#define ARBITRATION_CTRL_DMA_PRIORITY_2 (2 << 8) +#define ARBITRATION_CTRL_DMA_PRIORITY_3 (3 << 8) +#define ARBITRATION_CTRL_DMA_PRIORITY_4 (4 << 8) +#define ARBITRATION_CTRL_DMA_PRIORITY_5 (5 << 8) +#define ARBITRATION_CTRL_DMA_PRIORITY_6 (6 << 8) +#define ARBITRATION_CTRL_DMA_PRIORITY_7 (7 << 8) +#define ARBITRATION_CTRL_VIDEO_OFF (0 << 4) +#define ARBITRATION_CTRL_VIDEO_PRIORITY_1 (1 << 4) +#define ARBITRATION_CTRL_VIDEO_PRIORITY_2 (2 << 4) +#define ARBITRATION_CTRL_VIDEO_PRIORITY_3 (3 << 4) +#define ARBITRATION_CTRL_VIDEO_PRIORITY_4 (4 << 4) +#define ARBITRATION_CTRL_VIDEO_PRIORITY_5 (5 << 4) +#define ARBITRATION_CTRL_VIDEO_PRIORITY_6 (6 << 4) +#define ARBITRATION_CTRL_VIDEO_PRIORITY_7 (7 << 4) +#define ARBITRATION_CTRL_CRT_OFF (0 << 0) +#define ARBITRATION_CTRL_CRT_PRIORITY_1 (1 << 0) +#define ARBITRATION_CTRL_CRT_PRIORITY_2 (2 << 0) +#define ARBITRATION_CTRL_CRT_PRIORITY_3 (3 << 0) +#define ARBITRATION_CTRL_CRT_PRIORITY_4 (4 << 0) +#define ARBITRATION_CTRL_CRT_PRIORITY_5 (5 << 0) +#define ARBITRATION_CTRL_CRT_PRIORITY_6 (6 << 0) +#define ARBITRATION_CTRL_CRT_PRIORITY_7 (7 << 0) + +/* ----- Command list status register -------------------------- */ +#define CMD_INTPR_STATUS (0x000024 + VOYAGER_BASE) + +/* ----- Interrupt status register ----------------------------- */ +#define INT_STATUS (0x00002c + VOYAGER_BASE) +#define INT_STATUS_UH (1 << 6) +#define INT_STATUS_MC (1 << 10) +#define INT_STATUS_U0 (1 << 12) +#define INT_STATUS_U1 (1 << 13) +#define INT_STATUS_AC (1 << 17) + +/* ----- Interrupt mask register ------------------------------ */ +#define VOYAGER_INT_MASK (0x000030 + VOYAGER_BASE) +#define VOYAGER_INT_MASK_AC (1 << 17) + +/* ----- Current Gate register ---------------------------------*/ +#define CURRENT_GATE (0x000038 + VOYAGER_BASE) + +/* ----- Power mode 0 gate register --------------------------- */ +#define POWER_MODE0_GATE (0x000040 + VOYAGER_BASE) +#define POWER_MODE0_GATE_G (1 << 6) +#define POWER_MODE0_GATE_U0 (1 << 7) +#define POWER_MODE0_GATE_U1 (1 << 8) +#define POWER_MODE0_GATE_UH (1 << 11) +#define POWER_MODE0_GATE_AC (1 << 18) + +/* ----- Power mode 1 gate register --------------------------- */ +#define POWER_MODE1_GATE (0x000048 + VOYAGER_BASE) +#define POWER_MODE1_GATE_G (1 << 6) +#define POWER_MODE1_GATE_U0 (1 << 7) +#define POWER_MODE1_GATE_U1 (1 << 8) +#define POWER_MODE1_GATE_UH (1 << 11) +#define POWER_MODE1_GATE_AC (1 << 18) + +/* ----- Power mode 0 clock register -------------------------- */ +#define POWER_MODE0_CLOCK (0x000044 + VOYAGER_BASE) + +/* ----- Power mode 1 clock register -------------------------- */ +#define POWER_MODE1_CLOCK (0x00004C + VOYAGER_BASE) + +/* ----- Power mode controll register ------------------------- */ +#define POWER_MODE_CTRL (0x000054 + VOYAGER_BASE) + +/* ----- Miscellaneous Timing register ------------------------ */ +#define SYSTEM_DRAM_CTRL (0x000068 + VOYAGER_BASE) + +/* ----- PWM register ------------------------------------------*/ +#define PWM_0 (0x010020 + VOYAGER_BASE) +#define PWM_0_HC(x) (((x)&0x0fff)<<20) +#define PWM_0_LC(x) (((x)&0x0fff)<<8 ) +#define PWM_0_CLK_DEV(x) (((x)&0x000f)<<4 ) +#define PWM_0_EN (1<<0) + +/* ----- I2C register ----------------------------------------- */ +#define I2C_BYTECOUNT (0x010040 + VOYAGER_BASE) +#define I2C_CONTROL (0x010041 + VOYAGER_BASE) +#define I2C_STATUS (0x010042 + VOYAGER_BASE) +#define I2C_RESET (0x010042 + VOYAGER_BASE) +#define I2C_SADDRESS (0x010043 + VOYAGER_BASE) +#define I2C_DATA (0x010044 + VOYAGER_BASE) + +/* ----- Controle register bits ----------------------------------------- */ +#define I2C_CONTROL_E (1 << 0) +#define I2C_CONTROL_MODE (1 << 1) +#define I2C_CONTROL_STATUS (1 << 2) +#define I2C_CONTROL_INT (1 << 4) +#define I2C_CONTROL_INTACK (1 << 5) +#define I2C_CONTROL_REPEAT (1 << 6) + +/* ----- Status register bits ----------------------------------------- */ +#define I2C_STATUS_BUSY (1 << 0) +#define I2C_STATUS_ACK (1 << 1) +#define I2C_STATUS_ERROR (1 << 2) +#define I2C_STATUS_COMPLETE (1 << 3) + +/* ----- Reset register ---------------------------------------------- */ +#define I2C_RESET_ERROR (1 << 2) + +/* ----- transmission frequencies ------------------------------------- */ +#define I2C_SADDRESS_SELECT (1 << 0) + +/* ----- Display Controll register ----------------------------------------- */ +#define PANEL_DISPLAY_CTRL (0x080000 + VOYAGER_BASE) +#define PANEL_DISPLAY_CTRL_BIAS (1<<26) +#define PANEL_PAN_CTRL (0x080004 + VOYAGER_BASE) +#define PANEL_COLOR_KEY (0x080008 + VOYAGER_BASE) +#define PANEL_FB_ADDRESS (0x08000C + VOYAGER_BASE) +#define PANEL_FB_WIDTH (0x080010 + VOYAGER_BASE) +#define PANEL_WINDOW_WIDTH (0x080014 + VOYAGER_BASE) +#define PANEL_WINDOW_HEIGHT (0x080018 + VOYAGER_BASE) +#define PANEL_PLANE_TL (0x08001C + VOYAGER_BASE) +#define PANEL_PLANE_BR (0x080020 + VOYAGER_BASE) +#define PANEL_HORIZONTAL_TOTAL (0x080024 + VOYAGER_BASE) +#define PANEL_HORIZONTAL_SYNC (0x080028 + VOYAGER_BASE) +#define PANEL_VERTICAL_TOTAL (0x08002C + VOYAGER_BASE) +#define PANEL_VERTICAL_SYNC (0x080030 + VOYAGER_BASE) +#define PANEL_CURRENT_LINE (0x080034 + VOYAGER_BASE) +#define VIDEO_DISPLAY_CTRL (0x080040 + VOYAGER_BASE) +#define VIDEO_FB_0_ADDRESS (0x080044 + VOYAGER_BASE) +#define VIDEO_FB_WIDTH (0x080048 + VOYAGER_BASE) +#define VIDEO_FB_0_LAST_ADDRESS (0x08004C + VOYAGER_BASE) +#define VIDEO_PLANE_TL (0x080050 + VOYAGER_BASE) +#define VIDEO_PLANE_BR (0x080054 + VOYAGER_BASE) +#define VIDEO_SCALE (0x080058 + VOYAGER_BASE) +#define VIDEO_INITIAL_SCALE (0x08005C + VOYAGER_BASE) +#define VIDEO_YUV_CONSTANTS (0x080060 + VOYAGER_BASE) +#define VIDEO_FB_1_ADDRESS (0x080064 + VOYAGER_BASE) +#define VIDEO_FB_1_LAST_ADDRESS (0x080068 + VOYAGER_BASE) +#define VIDEO_ALPHA_DISPLAY_CTRL (0x080080 + VOYAGER_BASE) +#define VIDEO_ALPHA_FB_ADDRESS (0x080084 + VOYAGER_BASE) +#define VIDEO_ALPHA_FB_WIDTH (0x080088 + VOYAGER_BASE) +#define VIDEO_ALPHA_FB_LAST_ADDRESS (0x08008C + VOYAGER_BASE) +#define VIDEO_ALPHA_PLANE_TL (0x080090 + VOYAGER_BASE) +#define VIDEO_ALPHA_PLANE_BR (0x080094 + VOYAGER_BASE) +#define VIDEO_ALPHA_SCALE (0x080098 + VOYAGER_BASE) +#define VIDEO_ALPHA_INITIAL_SCALE (0x08009C + VOYAGER_BASE) +#define VIDEO_ALPHA_CHROMA_KEY (0x0800A0 + VOYAGER_BASE) +#define PANEL_HWC_ADDRESS (0x0800F0 + VOYAGER_BASE) +#define PANEL_HWC_LOCATION (0x0800F4 + VOYAGER_BASE) +#define PANEL_HWC_COLOR_12 (0x0800F8 + VOYAGER_BASE) +#define PANEL_HWC_COLOR_3 (0x0800FC + VOYAGER_BASE) +#define ALPHA_DISPLAY_CTRL (0x080100 + VOYAGER_BASE) +#define ALPHA_FB_ADDRESS (0x080104 + VOYAGER_BASE) +#define ALPHA_FB_WIDTH (0x080108 + VOYAGER_BASE) +#define ALPHA_PLANE_TL (0x08010C + VOYAGER_BASE) +#define ALPHA_PLANE_BR (0x080110 + VOYAGER_BASE) +#define ALPHA_CHROMA_KEY (0x080114 + VOYAGER_BASE) +#define CRT_DISPLAY_CTRL (0x080200 + VOYAGER_BASE) +#define CRT_FB_ADDRESS (0x080204 + VOYAGER_BASE) +#define CRT_FB_WIDTH (0x080208 + VOYAGER_BASE) +#define CRT_HORIZONTAL_TOTAL (0x08020C + VOYAGER_BASE) +#define CRT_HORIZONTAL_SYNC (0x080210 + VOYAGER_BASE) +#define CRT_VERTICAL_TOTAL (0x080214 + VOYAGER_BASE) +#define CRT_VERTICAL_SYNC (0x080218 + VOYAGER_BASE) +#define CRT_SIGNATURE_ANALYZER (0x08021C + VOYAGER_BASE) +#define CRT_CURRENT_LINE (0x080220 + VOYAGER_BASE) +#define CRT_MONITOR_DETECT (0x080224 + VOYAGER_BASE) +#define CRT_HWC_ADDRESS (0x080230 + VOYAGER_BASE) +#define CRT_HWC_LOCATION (0x080234 + VOYAGER_BASE) +#define CRT_HWC_COLOR_12 (0x080238 + VOYAGER_BASE) +#define CRT_HWC_COLOR_3 (0x08023C + VOYAGER_BASE) +#define CRT_PALETTE_RAM (0x080400 + VOYAGER_BASE) +#define PANEL_PALETTE_RAM (0x080800 + VOYAGER_BASE) +#define VIDEO_PALETTE_RAM (0x080C00 + VOYAGER_BASE) + +/* ----- 8051 Controle register ----------------------------------------- */ +#define VOYAGER_8051_BASE (0x000c0000 + VOYAGER_BASE) +#define VOYAGER_8051_RESET (0x000b0000 + VOYAGER_BASE) +#define VOYAGER_8051_SELECT (0x000b0004 + VOYAGER_BASE) +#define VOYAGER_8051_CPU_INT (0x000b000c + VOYAGER_BASE) + +/* ----- AC97 Controle register ----------------------------------------- */ +#define AC97_TX_SLOT0 (0x00000000 + VOYAGER_AC97_BASE) +#define AC97_CONTROL_STATUS (0x00000080 + VOYAGER_AC97_BASE) +#define AC97C_READ (1 << 19) +#define AC97C_WD_BIT (1 << 2) +#define AC97C_INDEX_MASK 0x7f +/* -------------------------------------------------------------------- */ + +#endif /* _VOYAGER_GX_REG_H */ -- cgit v1.2.3 From e7f93a355c7e32c26eab8910cf53b7506bb046c5 Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Wed, 27 Sep 2006 17:19:13 +0900 Subject: sh: Make PAGE_OFFSET configurable. nommu needs to be able to shift PAGE_OFFSET, so we switch it to a non-user-visible CONFIG_PAGE_OFFSET and use that in the few places where it matters. Signed-off-by: Paul Mundt --- arch/sh/Kconfig | 26 -------------------------- arch/sh/boot/compressed/Makefile | 3 ++- arch/sh/kernel/vmlinux.lds.S | 2 +- arch/sh/mm/Kconfig | 31 +++++++++++++++++++++++++++++++ include/asm-sh/page.h | 2 +- 5 files changed, 35 insertions(+), 29 deletions(-) (limited to 'include') diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig index 07d6d699e9c2..035df7fb2237 100644 --- a/arch/sh/Kconfig +++ b/arch/sh/Kconfig @@ -238,32 +238,6 @@ endchoice source "arch/sh/mm/Kconfig" -config MEMORY_START - hex "Physical memory start address" - default "0x08000000" - ---help--- - Computers built with Hitachi SuperH processors always - map the ROM starting at address zero. But the processor - does not specify the range that RAM takes. - - The physical memory (RAM) start address will be automatically - set to 08000000. Other platforms, such as the Solution Engine - boards typically map RAM at 0C000000. - - Tweak this only when porting to a new machine which does not - already have a defconfig. Changing it from the known correct - value on any of the known systems will only lead to disaster. - -config MEMORY_SIZE - hex "Physical memory size" - default "0x00400000" - help - This sets the default memory size assumed by your SH kernel. It can - be overridden as normal by the 'mem=' argument on the kernel command - line. If unsure, consult your board specifications or just leave it - as 0x00400000 which was the default value before this became - configurable. - config CF_ENABLER bool "Compact Flash Enabler support" depends on SH_ADX || SH_SOLUTION_ENGINE || SH_UNKNOWN || SH_CAT68701 || SH_SH03 diff --git a/arch/sh/boot/compressed/Makefile b/arch/sh/boot/compressed/Makefile index 75a6876bf6c6..7074267c01b7 100644 --- a/arch/sh/boot/compressed/Makefile +++ b/arch/sh/boot/compressed/Makefile @@ -18,9 +18,10 @@ endif # Assign dummy values if these 2 variables are not defined, # in order to suppress error message. # +CONFIG_PAGE_OFFSET ?= 0x80000000 CONFIG_MEMORY_START ?= 0x0c000000 CONFIG_BOOT_LINK_OFFSET ?= 0x00800000 -IMAGE_OFFSET := $(shell printf "0x%8x" $$[0x80000000+$(CONFIG_MEMORY_START)+$(CONFIG_BOOT_LINK_OFFSET)]) +IMAGE_OFFSET := $(shell printf "0x%8x" $$[$(CONFIG_PAGE_OFFSET)+$(CONFIG_MEMORY_START)+$(CONFIG_BOOT_LINK_OFFSET)]) LDFLAGS_vmlinux := -Ttext $(IMAGE_OFFSET) -e startup -T $(obj)/../../kernel/vmlinux.lds diff --git a/arch/sh/kernel/vmlinux.lds.S b/arch/sh/kernel/vmlinux.lds.S index 3f3e1e0735f5..eb860c51c697 100644 --- a/arch/sh/kernel/vmlinux.lds.S +++ b/arch/sh/kernel/vmlinux.lds.S @@ -13,7 +13,7 @@ OUTPUT_ARCH(sh) ENTRY(_start) SECTIONS { - . = 0x80000000 + CONFIG_MEMORY_START + CONFIG_ZERO_PAGE_OFFSET; + . = CONFIG_PAGE_OFFSET + CONFIG_MEMORY_START + CONFIG_ZERO_PAGE_OFFSET; _text = .; /* Text and read-only data */ text = .; /* Text and read-only data */ .empty_zero_page : { diff --git a/arch/sh/mm/Kconfig b/arch/sh/mm/Kconfig index 9064dfc91e6d..f25903aa607b 100644 --- a/arch/sh/mm/Kconfig +++ b/arch/sh/mm/Kconfig @@ -161,6 +161,37 @@ config MMU turning this off will boot the kernel on these machines with the MMU implicitly switched off. +config PAGE_OFFSET + hex + default "0x80000000" if MMU + default "0x00000000" + +config MEMORY_START + hex "Physical memory start address" + default "0x08000000" + ---help--- + Computers built with Hitachi SuperH processors always + map the ROM starting at address zero. But the processor + does not specify the range that RAM takes. + + The physical memory (RAM) start address will be automatically + set to 08000000. Other platforms, such as the Solution Engine + boards typically map RAM at 0C000000. + + Tweak this only when porting to a new machine which does not + already have a defconfig. Changing it from the known correct + value on any of the known systems will only lead to disaster. + +config MEMORY_SIZE + hex "Physical memory size" + default "0x00400000" + help + This sets the default memory size assumed by your SH kernel. It can + be overridden as normal by the 'mem=' argument on the kernel command + line. If unsure, consult your board specifications or just leave it + as 0x00400000 which was the default value before this became + configurable. + config 32BIT bool "Support 32-bit physical addressing through PMB" depends on CPU_SH4A diff --git a/include/asm-sh/page.h b/include/asm-sh/page.h index 51d7281a546a..1b3cfd165a66 100644 --- a/include/asm-sh/page.h +++ b/include/asm-sh/page.h @@ -84,7 +84,7 @@ typedef struct { unsigned long pgprot; } pgprot_t; #define __MEMORY_START CONFIG_MEMORY_START #define __MEMORY_SIZE CONFIG_MEMORY_SIZE -#define PAGE_OFFSET (0x80000000UL) +#define PAGE_OFFSET CONFIG_PAGE_OFFSET #define __pa(x) ((unsigned long)(x)-PAGE_OFFSET) #define __va(x) ((void *)((unsigned long)(x)+PAGE_OFFSET)) -- cgit v1.2.3 From e96636ccfa373a00a0ee0558e1971baa7856d8b5 Mon Sep 17 00:00:00 2001 From: Yoshinori Sato Date: Wed, 27 Sep 2006 17:21:02 +0900 Subject: sh: Various nommu fixes. This fixes up some of the various outstanding nommu bugs on SH. Signed-off-by: Yoshinori Sato Signed-off-by: Paul Mundt --- arch/sh/boot/compressed/Makefile | 10 ++++++++-- arch/sh/mm/init.c | 5 +++++ arch/sh/mm/pg-nommu.c | 17 +++++++++-------- include/asm-sh/addrspace.h | 8 ++++++++ include/asm-sh/flat.h | 2 +- include/asm-sh/mmu.h | 13 +------------ include/asm-sh/page.h | 5 +++++ include/asm-sh/uaccess.h | 13 +++++++++++++ 8 files changed, 50 insertions(+), 23 deletions(-) (limited to 'include') diff --git a/arch/sh/boot/compressed/Makefile b/arch/sh/boot/compressed/Makefile index 7074267c01b7..903470429cb4 100644 --- a/arch/sh/boot/compressed/Makefile +++ b/arch/sh/boot/compressed/Makefile @@ -21,11 +21,17 @@ endif CONFIG_PAGE_OFFSET ?= 0x80000000 CONFIG_MEMORY_START ?= 0x0c000000 CONFIG_BOOT_LINK_OFFSET ?= 0x00800000 -IMAGE_OFFSET := $(shell printf "0x%8x" $$[$(CONFIG_PAGE_OFFSET)+$(CONFIG_MEMORY_START)+$(CONFIG_BOOT_LINK_OFFSET)]) + +IMAGE_OFFSET := $(shell printf "0x%8x" $$[$(CONFIG_PAGE_OFFSET) + \ + $(CONFIG_MEMORY_START) + \ + $(CONFIG_BOOT_LINK_OFFSET)]) + +LIBGCC := $(shell $(CC) $(CFLAGS) -print-libgcc-file-name) LDFLAGS_vmlinux := -Ttext $(IMAGE_OFFSET) -e startup -T $(obj)/../../kernel/vmlinux.lds -$(obj)/vmlinux: $(OBJECTS) $(obj)/piggy.o FORCE + +$(obj)/vmlinux: $(OBJECTS) $(obj)/piggy.o $(LIBGCC) FORCE $(call if_changed,ld) @: diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c index d1a979eab656..2c6dc3d8df2c 100644 --- a/arch/sh/mm/init.c +++ b/arch/sh/mm/init.c @@ -248,8 +248,13 @@ void __init mem_init(void) * Setup wrappers for copy/clear_page(), these will get overridden * later in the boot process if a better method is available. */ +#ifdef CONFIG_MMU copy_page = copy_page_slow; clear_page = clear_page_slow; +#else + copy_page = copy_page_nommu; + clear_page = clear_page_nommu; +#endif /* this will put all low memory onto the freelists */ totalram_pages += free_all_bootmem_node(NODE_DATA(0)); diff --git a/arch/sh/mm/pg-nommu.c b/arch/sh/mm/pg-nommu.c index 8f9165a4e333..d15221beaa16 100644 --- a/arch/sh/mm/pg-nommu.c +++ b/arch/sh/mm/pg-nommu.c @@ -14,23 +14,24 @@ #include #include -static void copy_page_nommu(void *to, void *from) +void copy_page_nommu(void *to, void *from) { memcpy(to, from, PAGE_SIZE); } -static void clear_page_nommu(void *to) +void clear_page_nommu(void *to) { memset(to, 0, PAGE_SIZE); } -static int __init pg_nommu_init(void) +__kernel_size_t __copy_user(void *to, const void *from, __kernel_size_t n) { - copy_page = copy_page_nommu; - clear_page = clear_page_nommu; - + memcpy(to, from, n); return 0; } -subsys_initcall(pg_nommu_init); - +__kernel_size_t __clear_user(void *to, __kernel_size_t n) +{ + memset(to, 0, n); + return 0; +} diff --git a/include/asm-sh/addrspace.h b/include/asm-sh/addrspace.h index 720afc11c2ca..4207368267b1 100644 --- a/include/asm-sh/addrspace.h +++ b/include/asm-sh/addrspace.h @@ -14,11 +14,19 @@ #include /* Memory segments (32bit Privileged mode addresses) */ +#ifdef CONFIG_MMU #define P0SEG 0x00000000 #define P1SEG 0x80000000 #define P2SEG 0xa0000000 #define P3SEG 0xc0000000 #define P4SEG 0xe0000000 +#else +#define P0SEG 0x00000000 +#define P1SEG 0x00000000 +#define P2SEG 0x20000000 +#define P3SEG 0x40000000 +#define P4SEG 0x80000000 +#endif /* Returns the privileged segment base of a given address */ #define PXSEG(a) (((unsigned long)(a)) & 0xe0000000) diff --git a/include/asm-sh/flat.h b/include/asm-sh/flat.h index f29072e1c87e..0d5cc04ab005 100644 --- a/include/asm-sh/flat.h +++ b/include/asm-sh/flat.h @@ -13,7 +13,7 @@ #define __ASM_SH_FLAT_H #define flat_stack_align(sp) /* nothing needed */ -#define flat_argvp_envp_on_stack() 1 +#define flat_argvp_envp_on_stack() 0 #define flat_old_ram_flag(flags) (flags) #define flat_reloc_valid(reloc, size) ((reloc) <= (size)) #define flat_get_addr_from_rp(rp, relval, flags) get_unaligned(rp) diff --git a/include/asm-sh/mmu.h b/include/asm-sh/mmu.h index ec09589fa6ca..6383dc84501e 100644 --- a/include/asm-sh/mmu.h +++ b/include/asm-sh/mmu.h @@ -3,19 +3,8 @@ #if !defined(CONFIG_MMU) -struct mm_rblock_struct { - int size; - int refcount; - void *kblock; -}; - -struct mm_tblock_struct { - struct mm_rblock_struct *rblock; - struct mm_tblock_struct *next; -}; - typedef struct { - struct mm_tblock_struct tblock; + struct vm_list_struct *vmlist; unsigned long end_brk; } mm_context_t; diff --git a/include/asm-sh/page.h b/include/asm-sh/page.h index 1b3cfd165a66..e9135532d00c 100644 --- a/include/asm-sh/page.h +++ b/include/asm-sh/page.h @@ -38,8 +38,13 @@ extern void (*clear_page)(void *to); extern void (*copy_page)(void *to, void *from); +#ifdef CONFIG_MMU extern void clear_page_slow(void *to); extern void copy_page_slow(void *to, void *from); +#else +extern void clear_page_nommu(void *to); +extern void copy_page_nommu(void *to, void *from); +#endif #if defined(CONFIG_MMU) && (defined(CONFIG_CPU_SH4) || \ defined(CONFIG_SH7705_CACHE_32KB)) diff --git a/include/asm-sh/uaccess.h b/include/asm-sh/uaccess.h index 6c0014dd2ef7..5c3b00c2f107 100644 --- a/include/asm-sh/uaccess.h +++ b/include/asm-sh/uaccess.h @@ -168,6 +168,7 @@ do { \ __gu_err; \ }) +#ifdef CONFIG_MMU #define __get_user_check(x,ptr,size) \ ({ \ long __gu_err, __gu_val; \ @@ -257,6 +258,18 @@ __asm__("stc r7_bank, %1\n\t" \ : "r" (addr) \ : "t"); \ }) +#else /* CONFIG_MMU */ +#define __get_user_check(x,ptr,size) \ +({ \ + long __gu_err, __gu_val; \ + if (__access_ok((unsigned long)(ptr), (size))) { \ + __get_user_size(__gu_val, (ptr), (size), __gu_err); \ + (x) = (__typeof__(*(ptr)))__gu_val; \ + } else \ + __gu_err = -EFAULT; \ + __gu_err; \ +}) +#endif #define __get_user_asm(x, addr, err, insn) \ ({ \ -- cgit v1.2.3 From a2d1a5fae6296c2a3ac1aaa982c95464c46c0585 Mon Sep 17 00:00:00 2001 From: Yoshinori Sato Date: Wed, 27 Sep 2006 17:25:07 +0900 Subject: sh: __addr_ok() and other misc nommu fixups. A few more outstanding nommu fixups.. Signed-off-by: Yoshinori Sato Signed-off-by: Paul Mundt --- arch/sh/boot/compressed/Makefile | 6 +++--- arch/sh/kernel/process.c | 13 +++++++++---- arch/sh/kernel/sh_ksyms.c | 10 ++++------ arch/sh/kernel/sys_sh.c | 2 +- arch/sh/mm/Kconfig | 2 +- arch/sh/mm/Makefile | 4 ++-- include/asm-sh/addrspace.h | 4 ++-- include/asm-sh/io.h | 5 +++++ include/asm-sh/uaccess.h | 9 ++++++--- 9 files changed, 33 insertions(+), 22 deletions(-) (limited to 'include') diff --git a/arch/sh/boot/compressed/Makefile b/arch/sh/boot/compressed/Makefile index 903470429cb4..e5f443790079 100644 --- a/arch/sh/boot/compressed/Makefile +++ b/arch/sh/boot/compressed/Makefile @@ -22,9 +22,9 @@ CONFIG_PAGE_OFFSET ?= 0x80000000 CONFIG_MEMORY_START ?= 0x0c000000 CONFIG_BOOT_LINK_OFFSET ?= 0x00800000 -IMAGE_OFFSET := $(shell printf "0x%8x" $$[$(CONFIG_PAGE_OFFSET) + \ - $(CONFIG_MEMORY_START) + \ - $(CONFIG_BOOT_LINK_OFFSET)]) +IMAGE_OFFSET := $(shell printf "0x%08x" $$[$(CONFIG_PAGE_OFFSET) + \ + $(CONFIG_MEMORY_START) + \ + $(CONFIG_BOOT_LINK_OFFSET)]) LIBGCC := $(shell $(CC) $(CFLAGS) -print-libgcc-file-name) diff --git a/arch/sh/kernel/process.c b/arch/sh/kernel/process.c index 4a32550fd7c6..c4aa687ba26a 100644 --- a/arch/sh/kernel/process.c +++ b/arch/sh/kernel/process.c @@ -302,9 +302,11 @@ ubc_set_tracing(int asid, unsigned long pc) { ctrl_outl(pc, UBC_BARA); +#ifdef CONFIG_MMU /* We don't have any ASID settings for the SH-2! */ if (cpu_data->type != CPU_SH7604) ctrl_outb(asid, UBC_BASRA); +#endif ctrl_outl(0, UBC_BAMRA); @@ -347,6 +349,7 @@ struct task_struct *__switch_to(struct task_struct *prev, struct task_struct *ne } #endif +#ifdef CONFIG_MMU /* * Restore the kernel mode register * k7 (r7_bank1) @@ -354,19 +357,21 @@ struct task_struct *__switch_to(struct task_struct *prev, struct task_struct *ne asm volatile("ldc %0, r7_bank" : /* no output */ : "r" (task_thread_info(next))); +#endif -#ifdef CONFIG_MMU /* If no tasks are using the UBC, we're done */ if (ubc_usercnt == 0) /* If no tasks are using the UBC, we're done */; else if (next->thread.ubc_pc && next->mm) { - ubc_set_tracing(next->mm->context & MMU_CONTEXT_ASID_MASK, - next->thread.ubc_pc); + int asid = 0; +#ifdef CONFIG_MMU + asid |= next->mm->context & MMU_CONTEXT_ASID_MASK; +#endif + ubc_set_tracing(asid, next->thread.ubc_pc); } else { ctrl_outw(0, UBC_BBRA); ctrl_outw(0, UBC_BBRB); } -#endif return prev; } diff --git a/arch/sh/kernel/sh_ksyms.c b/arch/sh/kernel/sh_ksyms.c index 7f3a42244cab..bf59d73415d7 100644 --- a/arch/sh/kernel/sh_ksyms.c +++ b/arch/sh/kernel/sh_ksyms.c @@ -79,20 +79,18 @@ EXPORT_SYMBOL(strcpy); DECLARE_EXPORT(__movstr_i4_even); DECLARE_EXPORT(__movstr_i4_odd); DECLARE_EXPORT(__movstrSI12_i4); +#endif +#if defined(CONFIG_CPU_SH4) || defined(CONFIG_SH7705_CACHE_32KB) /* needed by some modules */ EXPORT_SYMBOL(flush_cache_all); EXPORT_SYMBOL(flush_cache_range); EXPORT_SYMBOL(flush_dcache_page); EXPORT_SYMBOL(__flush_purge_region); -EXPORT_SYMBOL(clear_user_page); #endif -#if defined(CONFIG_SH7705_CACHE_32KB) -EXPORT_SYMBOL(flush_cache_all); -EXPORT_SYMBOL(flush_cache_range); -EXPORT_SYMBOL(flush_dcache_page); -EXPORT_SYMBOL(__flush_purge_region); +#ifdef CONFIG_MMU +EXPORT_SYMBOL(clear_user_page); #endif EXPORT_SYMBOL(flush_tlb_page); diff --git a/arch/sh/kernel/sys_sh.c b/arch/sh/kernel/sys_sh.c index d8bcd8a22327..0ee7bf4cb238 100644 --- a/arch/sh/kernel/sys_sh.c +++ b/arch/sh/kernel/sys_sh.c @@ -44,7 +44,7 @@ asmlinkage int sys_pipe(unsigned long r4, unsigned long r5, return error; } -#if defined(HAVE_ARCH_UNMAPPED_AREA) +#if defined(HAVE_ARCH_UNMAPPED_AREA) && defined(CONFIG_MMU) /* * To avoid cache alias, we map the shard page with same color. */ diff --git a/arch/sh/mm/Kconfig b/arch/sh/mm/Kconfig index f25903aa607b..bed697c0dc19 100644 --- a/arch/sh/mm/Kconfig +++ b/arch/sh/mm/Kconfig @@ -194,7 +194,7 @@ config MEMORY_SIZE config 32BIT bool "Support 32-bit physical addressing through PMB" - depends on CPU_SH4A + depends on CPU_SH4A && MMU default y help If you say Y here, physical addressing will be extended to diff --git a/arch/sh/mm/Makefile b/arch/sh/mm/Makefile index 87a7c07265c0..da37d86e65eb 100644 --- a/arch/sh/mm/Makefile +++ b/arch/sh/mm/Makefile @@ -6,7 +6,7 @@ obj-y := init.o extable.o consistent.o obj-$(CONFIG_CPU_SH2) += cache-sh2.o obj-$(CONFIG_CPU_SH3) += cache-sh3.o -obj-$(CONFIG_CPU_SH4) += cache-sh4.o pg-sh4.o +obj-$(CONFIG_CPU_SH4) += cache-sh4.o obj-$(CONFIG_DMA_PAGE_OPS) += pg-dma.o obj-$(CONFIG_HUGETLB_PAGE) += hugetlbpage.o @@ -19,7 +19,7 @@ obj-y += $(mmu-y) ifdef CONFIG_MMU obj-$(CONFIG_CPU_SH3) += tlb-sh3.o -obj-$(CONFIG_CPU_SH4) += tlb-sh4.o +obj-$(CONFIG_CPU_SH4) += tlb-sh4.o pg-sh4.o obj-$(CONFIG_SH7705_CACHE_32KB) += pg-sh7705.o endif diff --git a/include/asm-sh/addrspace.h b/include/asm-sh/addrspace.h index 4207368267b1..b860218e402e 100644 --- a/include/asm-sh/addrspace.h +++ b/include/asm-sh/addrspace.h @@ -14,7 +14,7 @@ #include /* Memory segments (32bit Privileged mode addresses) */ -#ifdef CONFIG_MMU +#ifndef CONFIG_CPU_SH2A #define P0SEG 0x00000000 #define P1SEG 0x80000000 #define P2SEG 0xa0000000 @@ -24,7 +24,7 @@ #define P0SEG 0x00000000 #define P1SEG 0x00000000 #define P2SEG 0x20000000 -#define P3SEG 0x40000000 +#define P3SEG 0x00000000 #define P4SEG 0x80000000 #endif diff --git a/include/asm-sh/io.h b/include/asm-sh/io.h index 27dba653cbe7..377160b86295 100644 --- a/include/asm-sh/io.h +++ b/include/asm-sh/io.h @@ -216,6 +216,7 @@ static inline void ctrl_delay(void) #define IO_SPACE_LIMIT 0xffffffff +#ifdef CONFIG_MMU /* * Change virtual addresses to physical addresses and vv. * These are trivial on the 1:1 Linux/SuperH mapping @@ -229,6 +230,10 @@ static inline void *phys_to_virt(unsigned long address) { return (void *)P1SEGADDR(address); } +#else +#define phys_to_virt(address) ((void *)(address)) +#define virt_to_phys(address) ((unsigned long)(address)) +#endif #define virt_to_bus virt_to_phys #define bus_to_virt phys_to_virt diff --git a/include/asm-sh/uaccess.h b/include/asm-sh/uaccess.h index 5c3b00c2f107..5c49ed6715f2 100644 --- a/include/asm-sh/uaccess.h +++ b/include/asm-sh/uaccess.h @@ -34,12 +34,12 @@ #define segment_eq(a,b) ((a).seg == (b).seg) -#define __addr_ok(addr) \ - ((unsigned long)(addr) < (current_thread_info()->addr_limit.seg)) - #define get_ds() (KERNEL_DS) #if !defined(CONFIG_MMU) +/* NOMMU is always true */ +#define __addr_ok(addr) (1) + static inline mm_segment_t get_fs(void) { return USER_DS; @@ -66,6 +66,9 @@ static inline int __access_ok(unsigned long addr, unsigned long size) return ((addr >= memory_start) && ((addr + size) < memory_end)); } #else /* CONFIG_MMU */ +#define __addr_ok(addr) \ + ((unsigned long)(addr) < (current_thread_info()->addr_limit.seg)) + #define get_fs() (current_thread_info()->addr_limit) #define set_fs(x) (current_thread_info()->addr_limit = (x)) -- cgit v1.2.3 From 9f23e7e94f7083d9705b595cbd6b30972be6fbbb Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Wed, 27 Sep 2006 17:27:00 +0900 Subject: sh: pselect6 and ppoll, along with signal trampoline rework. This implements support for ppoll() and pselect6().. Signed-off-by: Paul Mundt --- arch/sh/kernel/entry.S | 8 +-- arch/sh/kernel/signal.c | 137 ++++++++++++++++++++----------------------- arch/sh/kernel/syscalls.S | 31 +++++----- include/asm-sh/thread_info.h | 2 + include/asm-sh/unistd.h | 66 +++++++++++---------- 5 files changed, 121 insertions(+), 123 deletions(-) (limited to 'include') diff --git a/arch/sh/kernel/entry.S b/arch/sh/kernel/entry.S index fcbf50d4ee10..fd5fe2349f20 100644 --- a/arch/sh/kernel/entry.S +++ b/arch/sh/kernel/entry.S @@ -371,12 +371,12 @@ work_pending: ! r8: current_thread_info ! t: result of "tst #_TIF_NEED_RESCHED, r0" bf/s work_resched - tst #_TIF_SIGPENDING, r0 + tst #(_TIF_SIGPENDING | _TIF_RESTORE_SIGMASK), r0 work_notifysig: bt/s restore_all mov r15, r4 - mov #0, r5 - mov r12, r6 ! set arg2(save_r0) + mov r12, r5 ! set arg1(save_r0) + mov r0, r6 mov.l 2f, r1 mova restore_all, r0 jmp @r1 @@ -414,7 +414,7 @@ work_resched: .align 2 1: .long schedule -2: .long do_signal +2: .long do_notify_resume .align 2 syscall_exit_work: diff --git a/arch/sh/kernel/signal.c b/arch/sh/kernel/signal.c index eb6a3b97e46c..2f1c9545b49f 100644 --- a/arch/sh/kernel/signal.c +++ b/arch/sh/kernel/signal.c @@ -29,13 +29,10 @@ #include #include -#define DEBUG_SIG 0 +#undef DEBUG #define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP))) -asmlinkage int do_signal(struct pt_regs *regs, sigset_t *oldset, - unsigned int save_r0); - /* * Atomically swap in the new signal mask, and wait for a signal. */ @@ -44,51 +41,17 @@ sys_sigsuspend(old_sigset_t mask, unsigned long r5, unsigned long r6, unsigned long r7, struct pt_regs regs) { - sigset_t saveset; - mask &= _BLOCKABLE; spin_lock_irq(¤t->sighand->siglock); - saveset = current->blocked; + current->saved_sigmask = current->blocked; siginitset(¤t->blocked, mask); recalc_sigpending(); spin_unlock_irq(¤t->sighand->siglock); - regs.regs[0] = -EINTR; - while (1) { - current->state = TASK_INTERRUPTIBLE; - schedule(); - if (do_signal(®s, &saveset, regs.regs[0])) - return -EINTR; - } -} - -asmlinkage int -sys_rt_sigsuspend(sigset_t *unewset, size_t sigsetsize, - unsigned long r6, unsigned long r7, - 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.regs[0] = -EINTR; - while (1) { - current->state = TASK_INTERRUPTIBLE; - schedule(); - if (do_signal(®s, &saveset, regs.regs[0])) - return -EINTR; - } + current->state = TASK_INTERRUPTIBLE; + schedule(); + set_thread_flag(TIF_RESTORE_SIGMASK); + return -ERESTARTNOHAND; } asmlinkage int @@ -349,7 +312,7 @@ get_sigframe(struct k_sigaction *ka, unsigned long sp, size_t frame_size) return (void __user *)((sp - frame_size) & -8ul); } -static void setup_frame(int sig, struct k_sigaction *ka, +static int setup_frame(int sig, struct k_sigaction *ka, sigset_t *set, struct pt_regs *regs) { struct sigframe __user *frame; @@ -369,10 +332,9 @@ static void setup_frame(int sig, struct k_sigaction *ka, err |= setup_sigcontext(&frame->sc, regs, set->sig[0]); - if (_NSIG_WORDS > 1) { + 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. */ @@ -403,21 +365,22 @@ static void setup_frame(int sig, struct k_sigaction *ka, 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 + pr_debug("SIG deliver (%s:%d): sp=%p pc=%08lx pr=%08lx\n", + current->comm, current->pid, frame, regs->pc, regs->pr); flush_cache_sigtramp(regs->pr); + if ((-regs->pr & (L1_CACHE_BYTES-1)) < sizeof(frame->retcode)) flush_cache_sigtramp(regs->pr + L1_CACHE_BYTES); - return; + + return 0; give_sigsegv: force_sigsegv(sig, current); + return -EFAULT; } -static void setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info, +static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info, sigset_t *set, struct pt_regs *regs) { struct rt_sigframe __user *frame; @@ -478,28 +441,31 @@ static void setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info, 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 + pr_debug("SIG deliver (%s:%d): sp=%p pc=%08lx pr=%08lx\n", + current->comm, current->pid, frame, regs->pc, regs->pr); flush_cache_sigtramp(regs->pr); + if ((-regs->pr & (L1_CACHE_BYTES-1)) < sizeof(frame->retcode)) flush_cache_sigtramp(regs->pr + L1_CACHE_BYTES); - return; + + return 0; give_sigsegv: force_sigsegv(sig, current); + return -EFAULT; } /* * OK, we're invoking a handler */ -static void +static int handle_signal(unsigned long sig, struct k_sigaction *ka, siginfo_t *info, sigset_t *oldset, struct pt_regs *regs) { + int ret; + /* Are we from a system call? */ if (regs->tra >= 0) { /* If so, check system call restarting.. */ @@ -540,19 +506,23 @@ handle_signal(unsigned long sig, struct k_sigaction *ka, siginfo_t *info, /* Set up the stack frame */ if (ka->sa.sa_flags & SA_SIGINFO) - setup_rt_frame(sig, ka, info, oldset, regs); + ret = setup_rt_frame(sig, ka, info, oldset, regs); else - setup_frame(sig, ka, oldset, regs); + ret = setup_frame(sig, ka, oldset, regs); if (ka->sa.sa_flags & SA_ONESHOT) ka->sa.sa_handler = SIG_DFL; - 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); + if (ret == 0) { + 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); + } + + return ret; } /* @@ -564,11 +534,12 @@ handle_signal(unsigned long sig, struct k_sigaction *ka, siginfo_t *info, * 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, unsigned int save_r0) +static void do_signal(struct pt_regs *regs, unsigned int save_r0) { siginfo_t info; int signr; struct k_sigaction ka; + sigset_t *oldset; /* * We want the common case to go fast, which @@ -577,19 +548,27 @@ int do_signal(struct pt_regs *regs, sigset_t *oldset, unsigned int save_r0) * if so. */ if (!user_mode(regs)) - return 1; + return; if (try_to_freeze()) goto no_signal; - if (!oldset) + if (test_thread_flag(TIF_RESTORE_SIGMASK)) + oldset = ¤t->saved_sigmask; + else oldset = ¤t->blocked; signr = get_signal_to_deliver(&info, &ka, regs, NULL); if (signr > 0) { /* Whee! Actually deliver the signal. */ - handle_signal(signr, &ka, &info, oldset, regs); - return 1; + if (handle_signal(signr, &ka, &info, oldset, regs) == 0) { + /* a signal was successfully delivered; the saved + * sigmask will have been stored in the signal frame, + * and will be restored by sigreturn, so we can simply + * clear the TIF_RESTORE_SIGMASK flag */ + if (test_thread_flag(TIF_RESTORE_SIGMASK)) + clear_thread_flag(TIF_RESTORE_SIGMASK); + } } no_signal: @@ -606,5 +585,19 @@ int do_signal(struct pt_regs *regs, sigset_t *oldset, unsigned int save_r0) regs->regs[3] = __NR_restart_syscall; } } - return 0; + + /* if there's no signal to deliver, we just put the saved sigmask + * back */ + if (test_thread_flag(TIF_RESTORE_SIGMASK)) { + clear_thread_flag(TIF_RESTORE_SIGMASK); + sigprocmask(SIG_SETMASK, ¤t->saved_sigmask, NULL); + } +} + +asmlinkage void do_notify_resume(struct pt_regs *regs, unsigned int save_r0, + __u32 thread_info_flags) +{ + /* deal with pending signal delivery */ + if (thread_info_flags & (_TIF_SIGPENDING | _TIF_RESTORE_SIGMASK)) + do_signal(regs, save_r0); } diff --git a/arch/sh/kernel/syscalls.S b/arch/sh/kernel/syscalls.S index ea23b213c77f..768334e95075 100644 --- a/arch/sh/kernel/syscalls.S +++ b/arch/sh/kernel/syscalls.S @@ -319,34 +319,35 @@ ENTRY(sys_call_table) .long sys_mq_getsetattr .long sys_kexec_load .long sys_waitid - .long sys_add_key /* 285 */ + .long sys_ni_syscall /* 285 */ + .long sys_add_key .long sys_request_key .long sys_keyctl .long sys_ioprio_set - .long sys_ioprio_get - .long sys_inotify_init /* 290 */ + .long sys_ioprio_get /* 290 */ + .long sys_inotify_init .long sys_inotify_add_watch .long sys_inotify_rm_watch .long sys_migrate_pages - .long sys_openat - .long sys_mkdirat /* 295 */ + .long sys_openat /* 295 */ + .long sys_mkdirat .long sys_mknodat .long sys_fchownat .long sys_futimesat - .long sys_fstatat64 - .long sys_unlinkat /* 300 */ + .long sys_fstatat64 /* 300 */ + .long sys_unlinkat .long sys_renameat .long sys_linkat .long sys_symlinkat - .long sys_readlinkat - .long sys_fchmodat /* 305 */ + .long sys_readlinkat /* 305 */ + .long sys_fchmodat .long sys_faccessat - .long sys_ni_syscall /* Reserved for pselect6 */ - .long sys_ni_syscall /* Reserved for ppoll */ - .long sys_unshare - .long sys_set_robust_list /* 310 */ + .long sys_pselect6 + .long sys_ppoll + .long sys_unshare /* 310 */ + .long sys_set_robust_list .long sys_get_robust_list .long sys_splice .long sys_sync_file_range - .long sys_tee - .long sys_vmsplice /* 315 */ + .long sys_tee /* 315 */ + .long sys_vmsplice diff --git a/include/asm-sh/thread_info.h b/include/asm-sh/thread_info.h index b986a1914472..5eb874b065a6 100644 --- a/include/asm-sh/thread_info.h +++ b/include/asm-sh/thread_info.h @@ -94,6 +94,7 @@ static inline struct thread_info *current_thread_info(void) #define TIF_NOTIFY_RESUME 1 /* resumption notification requested */ #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 16 /* FPU was used by this task this quantum (SMP) */ #define TIF_POLLING_NRFLAG 17 /* true if poll_idle() is polling TIF_NEED_RESCHED */ #define TIF_MEMDIE 18 @@ -102,6 +103,7 @@ static inline struct thread_info *current_thread_info(void) #define _TIF_NOTIFY_RESUME (1< Date: Wed, 27 Sep 2006 17:32:30 +0900 Subject: serial: Add SERIAL_SH_SCI_NR_UARTS for sh-sci. sh-sci needs to be able to define its number of ports to support, we do this with a config option, like most other ports do. Signed-off-by: Paul Mundt --- drivers/serial/Kconfig | 9 +++++++-- include/asm-sh/sci.h | 34 ++++++++++++++++++++++++++++++++++ 2 files changed, 41 insertions(+), 2 deletions(-) create mode 100644 include/asm-sh/sci.h (limited to 'include') diff --git a/drivers/serial/Kconfig b/drivers/serial/Kconfig index 5b48ac22c9c5..261eaa442953 100644 --- a/drivers/serial/Kconfig +++ b/drivers/serial/Kconfig @@ -642,12 +642,17 @@ config V850E_UART_CONSOLE select SERIAL_CORE_CONSOLE config SERIAL_SH_SCI - tristate "SH SCI(F) serial port support" + tristate "SuperH SCI(F) serial port support" depends on SUPERH || H8300 select SERIAL_CORE +config SERIAL_SH_SCI_NR_UARTS + int "Maximum number of SCI(F) serial ports" + depends on SERIAL_SH_SCI + default "2" + config SERIAL_SH_SCI_CONSOLE - bool "Support for console on SH SCI(F)" + bool "Support for console on SuperH SCI(F)" depends on SERIAL_SH_SCI=y select SERIAL_CORE_CONSOLE diff --git a/include/asm-sh/sci.h b/include/asm-sh/sci.h new file mode 100644 index 000000000000..52e73660c129 --- /dev/null +++ b/include/asm-sh/sci.h @@ -0,0 +1,34 @@ +#ifndef __ASM_SH_SCI_H +#define __ASM_SH_SCI_H + +#include + +/* + * Generic header for SuperH SCI(F) + * + * Do not place SH-specific parts in here, sh64 and h8300 depend on this too. + */ + +/* Offsets into the sci_port->irqs array */ +enum { + SCIx_ERI_IRQ, + SCIx_RXI_IRQ, + SCIx_TXI_IRQ, + SCIx_BRI_IRQ, + SCIx_NR_IRQS, +}; + +/* + * Platform device specific platform_data struct + */ +struct plat_sci_port { + void __iomem *membase; /* io cookie */ + unsigned long mapbase; /* resource base */ + unsigned int irqs[SCIx_NR_IRQS]; /* ERI, RXI, TXI, BRI */ + unsigned int type; /* SCI / SCIF / IRDA */ + upf_t flags; /* UPF_* flags */ +}; + +int early_sci_setup(struct uart_port *port); + +#endif /* __ASM_SH_SCI_H */ -- cgit v1.2.3 From e5723e0eeb2dc16629e86d66785024ead9169000 Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Wed, 27 Sep 2006 17:38:11 +0900 Subject: sh: Add support for SH7706/SH7710/SH7343 CPUs. This adds support for the aforementioned CPU subtypes, and cleans up some build issues encountered as a result. Signed-off-by: Paul Mundt --- arch/sh/Kconfig | 12 +- arch/sh/Makefile | 7 +- arch/sh/boards/hp6xx/setup.c | 5 +- arch/sh/boards/renesas/hs7751rvoip/io.c | 2 +- arch/sh/kernel/cpu/irq/ipr.c | 2 + arch/sh/kernel/cpu/sh3/Makefile | 5 +- arch/sh/kernel/cpu/sh3/clock-sh7706.c | 84 +++++++++ arch/sh/kernel/cpu/sh3/ex.S | 54 +++++- arch/sh/kernel/cpu/sh3/probe.c | 6 + arch/sh/kernel/cpu/sh3/setup-sh7710.c | 43 +++++ arch/sh/kernel/cpu/sh4/Makefile | 1 + arch/sh/kernel/cpu/sh4/ex.S | 12 +- arch/sh/kernel/cpu/sh4/probe.c | 17 +- arch/sh/kernel/cpu/sh4/setup-sh7343.c | 43 +++++ arch/sh/kernel/process.c | 2 +- arch/sh/kernel/setup.c | 31 ++-- arch/sh/kernel/sh_ksyms.c | 3 +- arch/sh/mm/Kconfig | 30 ++- include/asm-sh/cpu-sh3/cache.h | 4 +- include/asm-sh/cpu-sh3/mmu_context.h | 8 +- include/asm-sh/cpu-sh3/timer.h | 1 + include/asm-sh/cpu-sh3/ubc.h | 15 +- include/asm-sh/irq-sh73180.h | 2 - include/asm-sh/irq-sh7343.h | 317 ++++++++++++++++++++++++++++++++ include/asm-sh/irq.h | 119 +++++++++++- include/asm-sh/processor.h | 8 +- 26 files changed, 767 insertions(+), 66 deletions(-) create mode 100644 arch/sh/kernel/cpu/sh3/clock-sh7706.c create mode 100644 arch/sh/kernel/cpu/sh3/setup-sh7710.c create mode 100644 arch/sh/kernel/cpu/sh4/setup-sh7343.c create mode 100644 include/asm-sh/irq-sh7343.h (limited to 'include') diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig index 035df7fb2237..557e7232141c 100644 --- a/arch/sh/Kconfig +++ b/arch/sh/Kconfig @@ -324,12 +324,11 @@ config SH_FPU_EMU config SH_DSP bool "DSP support" - depends on !CPU_SH4 - default y + default y if SH4AL_DSP || !CPU_SH4 + default n help Selecting this option will enable support for SH processors that - have DSP units (ie, SH2-DSP and SH3-DSP). It is safe to say Y here - by default, as the existance of the DSP will be probed at runtime. + have DSP units (ie, SH2-DSP, SH3-DSP, and SH4AL-DSP). This option must be set in order to enable the DSP. @@ -393,8 +392,9 @@ config SH_PCLK_FREQ int "Peripheral clock frequency (in Hz)" default "50000000" if CPU_SUBTYPE_SH7750 || CPU_SUBTYPE_SH7780 default "60000000" if CPU_SUBTYPE_SH7751 - default "33333333" if CPU_SUBTYPE_SH7300 || CPU_SUBTYPE_SH7770 || CPU_SUBTYPE_SH7760 - default "27000000" if CPU_SUBTYPE_SH73180 + default "33333333" if CPU_SUBTYPE_SH7300 || CPU_SUBTYPE_SH7770 || \ + CPU_SUBTYPE_SH7760 + default "27000000" if CPU_SUBTYPE_SH73180 || CPU_SUBTYPE_SH7343 default "66000000" if CPU_SUBTYPE_SH4_202 help This option is used to specify the peripheral clock frequency. diff --git a/arch/sh/Makefile b/arch/sh/Makefile index 13b688b13e1c..d118e48ea1ba 100644 --- a/arch/sh/Makefile +++ b/arch/sh/Makefile @@ -18,11 +18,13 @@ cflags-y := -mb cflags-$(CONFIG_CPU_LITTLE_ENDIAN) := -ml isa-y := any +isa-$(CONFIG_SH_DSP) := sh isa-$(CONFIG_CPU_SH2) := sh2 +isa-$(CONFIG_CPU_SH2A) := sh2a isa-$(CONFIG_CPU_SH3) := sh3 isa-$(CONFIG_CPU_SH4) := sh4 isa-$(CONFIG_CPU_SH4A) := sh4a -isa-$(CONFIG_CPU_SH2A) := sh2a +isa-$(CONFIG_CPU_SH4AL_DSP) := sh4al isa-$(CONFIG_SH_DSP) := $(isa-y)-dsp @@ -30,9 +32,11 @@ ifndef CONFIG_MMU isa-y := $(isa-y)-nommu endif +ifndef CONFIG_SH_DSP ifndef CONFIG_SH_FPU isa-y := $(isa-y)-nofpu endif +endif cflags-y += $(call as-option,-Wa$(comma)-isa=$(isa-y),) @@ -188,4 +192,3 @@ CLEAN_FILES += include/asm-sh/machtypes.h define archhelp @echo ' zImage - Compressed kernel image (arch/sh/boot/zImage)' endef - diff --git a/arch/sh/boards/hp6xx/setup.c b/arch/sh/boards/hp6xx/setup.c index 5fc00f0727c4..629016bec809 100644 --- a/arch/sh/boards/hp6xx/setup.c +++ b/arch/sh/boards/hp6xx/setup.c @@ -8,10 +8,11 @@ * * Setup code for an HP680 (internal peripherials only) */ - +#include #include -#include #include +#include +#include #include #include diff --git a/arch/sh/boards/renesas/hs7751rvoip/io.c b/arch/sh/boards/renesas/hs7751rvoip/io.c index 8c26550ca2e4..9ea1136b219b 100644 --- a/arch/sh/boards/renesas/hs7751rvoip/io.c +++ b/arch/sh/boards/renesas/hs7751rvoip/io.c @@ -10,10 +10,10 @@ * placeholder code from io_hs7751rvoip.c left in with the * expectation of later SuperIO and PCMCIA access. */ - #include #include #include +#include #include #include #include diff --git a/arch/sh/kernel/cpu/irq/ipr.c b/arch/sh/kernel/cpu/irq/ipr.c index 0f545941fb4f..d2b715a04c7e 100644 --- a/arch/sh/kernel/cpu/irq/ipr.c +++ b/arch/sh/kernel/cpu/irq/ipr.c @@ -89,6 +89,7 @@ static void mask_and_ack_ipr(unsigned int irq) disable_ipr_irq(irq); #if defined(CONFIG_CPU_SUBTYPE_SH7707) || defined(CONFIG_CPU_SUBTYPE_SH7709) || \ + defined(CONFIG_CPU_SUBTYPE_SH7706) || \ defined(CONFIG_CPU_SUBTYPE_SH7300) || defined(CONFIG_CPU_SUBTYPE_SH7705) /* This is needed when we use edge triggered setting */ /* XXX: Is it really needed? */ @@ -162,6 +163,7 @@ void __init init_IRQ(void) #endif #if defined(CONFIG_CPU_SUBTYPE_SH7707) || defined(CONFIG_CPU_SUBTYPE_SH7709) || \ + defined(CONFIG_CPU_SUBTYPE_SH7706) || \ defined(CONFIG_CPU_SUBTYPE_SH7300) || defined(CONFIG_CPU_SUBTYPE_SH7705) /* * Initialize the Interrupt Controller (INTC) diff --git a/arch/sh/kernel/cpu/sh3/Makefile b/arch/sh/kernel/cpu/sh3/Makefile index 1b292ae16f07..58d3815695ff 100644 --- a/arch/sh/kernel/cpu/sh3/Makefile +++ b/arch/sh/kernel/cpu/sh3/Makefile @@ -6,16 +6,19 @@ obj-y := ex.o probe.o # CPU subtype setup obj-$(CONFIG_CPU_SUBTYPE_SH7705) += setup-sh7705.o +obj-$(CONFIG_CPU_SUBTYPE_SH7706) += setup-sh7709.o obj-$(CONFIG_CPU_SUBTYPE_SH7707) += setup-sh7709.o obj-$(CONFIG_CPU_SUBTYPE_SH7708) += setup-sh7708.o obj-$(CONFIG_CPU_SUBTYPE_SH7709) += setup-sh7709.o obj-$(CONFIG_CPU_SUBTYPE_SH7300) += setup-sh7300.o +obj-$(CONFIG_CPU_SUBTYPE_SH7710) += setup-sh7710.o # Primary on-chip clocks (common) clock-$(CONFIG_CPU_SH3) := clock-sh3.o clock-$(CONFIG_CPU_SUBTYPE_SH7300) := clock-sh7300.o clock-$(CONFIG_CPU_SUBTYPE_SH7705) := clock-sh7705.o +clock-$(CONFIG_CPU_SUBTYPE_SH7706) := clock-sh7706.o clock-$(CONFIG_CPU_SUBTYPE_SH7709) := clock-sh7709.o +clock-$(CONFIG_CPU_SUBTYPE_SH7710) := clock-sh7300.o obj-y += $(clock-y) - diff --git a/arch/sh/kernel/cpu/sh3/clock-sh7706.c b/arch/sh/kernel/cpu/sh3/clock-sh7706.c new file mode 100644 index 000000000000..0cf96f9833bc --- /dev/null +++ b/arch/sh/kernel/cpu/sh3/clock-sh7706.c @@ -0,0 +1,84 @@ +/* + * arch/sh/kernel/cpu/sh3/clock-sh7706.c + * + * SH7706 support for the clock framework + * + * Copyright (C) 2006 Takashi YOSHII + * + * Based on arch/sh/kernel/cpu/sh3/clock-sh7709.c + * Copyright (C) 2005 Andriy Skulysh + * + * 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 + +static int stc_multipliers[] = { 1, 2, 4, 1, 3, 6, 1, 1 }; +static int ifc_divisors[] = { 1, 2, 4, 1, 3, 1, 1, 1 }; +static int pfc_divisors[] = { 1, 2, 4, 1, 3, 6, 1, 1 }; + +static void master_clk_init(struct clk *clk) +{ + int frqcr = ctrl_inw(FRQCR); + int idx = ((frqcr & 0x2000) >> 11) | (frqcr & 0x0003); + + clk->rate *= pfc_divisors[idx]; +} + +static struct clk_ops sh7706_master_clk_ops = { + .init = master_clk_init, +}; + +static void module_clk_recalc(struct clk *clk) +{ + int frqcr = ctrl_inw(FRQCR); + int idx = ((frqcr & 0x2000) >> 11) | (frqcr & 0x0003); + + clk->rate = clk->parent->rate / pfc_divisors[idx]; +} + +static struct clk_ops sh7706_module_clk_ops = { + .recalc = module_clk_recalc, +}; + +static void bus_clk_recalc(struct clk *clk) +{ + int frqcr = ctrl_inw(FRQCR); + int idx = ((frqcr & 0x8000) >> 13) | ((frqcr & 0x0030) >> 4); + + clk->rate = clk->parent->rate / stc_multipliers[idx]; +} + +static struct clk_ops sh7706_bus_clk_ops = { + .recalc = bus_clk_recalc, +}; + +static void cpu_clk_recalc(struct clk *clk) +{ + int frqcr = ctrl_inw(FRQCR); + int idx = ((frqcr & 0x4000) >> 12) | ((frqcr & 0x000c) >> 2); + + clk->rate = clk->parent->rate / ifc_divisors[idx]; +} + +static struct clk_ops sh7706_cpu_clk_ops = { + .recalc = cpu_clk_recalc, +}; + +static struct clk_ops *sh7706_clk_ops[] = { + &sh7706_master_clk_ops, + &sh7706_module_clk_ops, + &sh7706_bus_clk_ops, + &sh7706_cpu_clk_ops, +}; + +void __init arch_init_clk_ops(struct clk_ops **ops, int idx) +{ + if (idx < ARRAY_SIZE(sh7706_clk_ops)) + *ops = sh7706_clk_ops[idx]; +} diff --git a/arch/sh/kernel/cpu/sh3/ex.S b/arch/sh/kernel/cpu/sh3/ex.S index cc04e9e239ff..44daf44833f9 100644 --- a/arch/sh/kernel/cpu/sh3/ex.S +++ b/arch/sh/kernel/cpu/sh3/ex.S @@ -84,8 +84,12 @@ ENTRY(interrupt_table) .long do_IRQ ! rovi .long do_IRQ .long do_IRQ /* 5E0 */ -#if defined(CONFIG_CPU_SUBTYPE_SH7707) || defined(CONFIG_CPU_SUBTYPE_SH7709) || \ - defined(CONFIG_CPU_SUBTYPE_SH7300) || defined(CONFIG_CPU_SUBTYPE_SH7705) +#if defined(CONFIG_CPU_SUBTYPE_SH7707) || \ + defined(CONFIG_CPU_SUBTYPE_SH7709) || \ + defined(CONFIG_CPU_SUBTYPE_SH7706) || \ + defined(CONFIG_CPU_SUBTYPE_SH7300) || \ + defined(CONFIG_CPU_SUBTYPE_SH7705) || \ + defined(CONFIG_CPU_SUBTYPE_SH7710) .long do_IRQ ! 32 IRQ irq0 /* 600 */ .long do_IRQ ! 33 irq1 .long do_IRQ ! 34 irq2 @@ -147,6 +151,51 @@ ENTRY(interrupt_table) .long do_IRQ ! 62 PCC pcc0i .long do_IRQ ! 63 pcc1i /* 9E0 */ #endif +#if defined(CONFIG_CPU_SUBTYPE_SH7710) + .long exception_none ! 61 /* 9A0 */ + .long exception_none ! 62 + .long exception_none ! 63 + .long exception_none ! 64 /* A00 */ + .long exception_none ! 65 + .long exception_none ! 66 + .long exception_none ! 67 + .long exception_none ! 68 + .long exception_none ! 69 + .long exception_none ! 70 + .long exception_none ! 71 + .long exception_none ! 72 /* B00 */ + .long exception_none ! 73 + .long exception_none ! 74 + .long exception_none ! 75 + .long do_IRQ ! 76 DMAC2 dei4 /* B80 */ + .long do_IRQ ! 77 DMAC2 dei5 + .long exception_none ! 78 + .long do_IRQ ! 79 IPSEC ipseci /* BE0 */ + .long do_IRQ ! 80 EDMAC eint0 /* C00 */ + .long do_IRQ ! 81 EDMAC eint1 + .long do_IRQ ! 82 EDMAC eint2 + .long exception_none ! 83 /* C60 */ + .long exception_none ! 84 + .long exception_none ! 85 + .long exception_none ! 86 + .long exception_none ! 87 + .long exception_none ! 88 /* D00 */ + .long exception_none ! 89 + .long exception_none ! 90 + .long exception_none ! 91 + .long exception_none ! 92 + .long exception_none ! 93 + .long exception_none ! 94 + .long exception_none ! 95 + .long do_IRQ ! 96 SIOF eri0 /* E00 */ + .long do_IRQ ! 97 txi0 + .long do_IRQ ! 98 rxi0 + .long do_IRQ ! 99 cci0 + .long do_IRQ ! 100 eri1 /* E80 */ + .long do_IRQ ! 101 txi1 + .long do_IRQ ! 102 rxi2 + .long do_IRQ ! 103 cci3 +#endif #if defined(CONFIG_CPU_SUBTYPE_SH7300) .long do_IRQ ! 64 .long do_IRQ ! 65 @@ -195,4 +244,3 @@ ENTRY(interrupt_table) .long do_IRQ ! 108 #endif #endif - diff --git a/arch/sh/kernel/cpu/sh3/probe.c b/arch/sh/kernel/cpu/sh3/probe.c index 5cdc88638601..e67098836290 100644 --- a/arch/sh/kernel/cpu/sh3/probe.c +++ b/arch/sh/kernel/cpu/sh3/probe.c @@ -72,6 +72,12 @@ int __init detect_cpu_and_cache_system(void) cpu_data->dcache.sets = 256; cpu_data->type = CPU_SH7729; +#if defined(CONFIG_CPU_SUBTYPE_SH7706) + cpu_data->type = CPU_SH7706; +#endif +#if defined(CONFIG_CPU_SUBTYPE_SH7710) + cpu_data->type = CPU_SH7710; +#endif #if defined(CONFIG_CPU_SUBTYPE_SH7705) cpu_data->type = CPU_SH7705; diff --git a/arch/sh/kernel/cpu/sh3/setup-sh7710.c b/arch/sh/kernel/cpu/sh3/setup-sh7710.c new file mode 100644 index 000000000000..895f99ee6a95 --- /dev/null +++ b/arch/sh/kernel/cpu/sh3/setup-sh7710.c @@ -0,0 +1,43 @@ +/* + * SH7710 Setup + * + * Copyright (C) 2006 Paul Mundt + * + * 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 + +static struct plat_sci_port sci_platform_data[] = { + { + .mapbase = 0xa4400000, + .flags = UPF_BOOT_AUTOCONF, + .type = PORT_SCIF, + .irqs = { 52, 53, 55, 54 }, + }, { + .flags = 0, + } +}; + +static struct platform_device sci_device = { + .name = "sh-sci", + .id = -1, + .dev = { + .platform_data = sci_platform_data, + }, +}; + +static struct platform_device *sh7710_devices[] __initdata = { + &sci_device, +}; + +static int __init sh7710_devices_setup(void) +{ + return platform_add_devices(sh7710_devices, + ARRAY_SIZE(sh7710_devices)); +} +__initcall(sh7710_devices_setup); diff --git a/arch/sh/kernel/cpu/sh4/Makefile b/arch/sh/kernel/cpu/sh4/Makefile index 48946d54a2cd..8dbf3895ece7 100644 --- a/arch/sh/kernel/cpu/sh4/Makefile +++ b/arch/sh/kernel/cpu/sh4/Makefile @@ -14,6 +14,7 @@ obj-$(CONFIG_CPU_SUBTYPE_SH7760) += setup-sh7760.o obj-$(CONFIG_CPU_SUBTYPE_SH7770) += setup-sh7770.o obj-$(CONFIG_CPU_SUBTYPE_SH7780) += setup-sh7780.o obj-$(CONFIG_CPU_SUBTYPE_SH73180) += setup-sh73180.o +obj-$(CONFIG_CPU_SUBTYPE_SH7343) += setup-sh7343.o obj-$(CONFIG_CPU_SUBTYPE_SH4_202) += setup-sh4-202.o # Primary on-chip clocks (common) diff --git a/arch/sh/kernel/cpu/sh4/ex.S b/arch/sh/kernel/cpu/sh4/ex.S index af5ecbddea55..7146893a6cca 100644 --- a/arch/sh/kernel/cpu/sh4/ex.S +++ b/arch/sh/kernel/cpu/sh4/ex.S @@ -123,6 +123,13 @@ ENTRY(interrupt_table) .long do_IRQ ! 45 dmte5 .long do_IRQ ! 46 dmte6 .long do_IRQ ! 47 dmte7 /* 7E0 */ +#elif defined(CONFIG_CPU_SUBTYPE_SH7343) + .long do_IRQ ! 44 IIC1 ali /* 780 */ + .long do_IRQ ! 45 tacki + .long do_IRQ ! 46 waiti + .long do_IRQ ! 47 dtei /* 7E0 */ + .long do_IRQ ! 48 DMAC dei0 /* 800 */ + .long do_IRQ ! 49 dei1 /* 820 */ #else .long exception_error ! 44 /* 780 */ .long exception_error ! 45 @@ -132,7 +139,8 @@ ENTRY(interrupt_table) #if defined(CONFIG_SH_FPU) .long do_fpu_state_restore ! 48 /* 800 */ .long do_fpu_state_restore ! 49 /* 820 */ -#else +#elif !defined(CONFIG_CPU_SUBTYPE_SH7343) && \ + !defined(CONFIG_CPU_SUBTYPE_SH73180) .long exception_error .long exception_error #endif @@ -225,7 +233,7 @@ ENTRY(interrupt_table) .long exception_error .long do_IRQ ! ADC adi .long do_IRQ ! CMT cmti /* FA0 */ -#elif defined(CONFIG_CPU_SUBTYPE_SH73180) +#elif defined(CONFIG_CPU_SUBTYPE_SH73180) || defined(CONFIG_CPU_SUBTYPE_SH7343) .long do_IRQ ! 50 0x840 .long do_IRQ ! 51 0x860 .long do_IRQ ! 52 0x880 diff --git a/arch/sh/kernel/cpu/sh4/probe.c b/arch/sh/kernel/cpu/sh4/probe.c index 2a7707a81d8f..6e8a2b5268e8 100644 --- a/arch/sh/kernel/cpu/sh4/probe.c +++ b/arch/sh/kernel/cpu/sh4/probe.c @@ -3,7 +3,7 @@ * * CPU Subtype Probing for SH-4. * - * Copyright (C) 2001 - 2005 Paul Mundt + * Copyright (C) 2001 - 2006 Paul Mundt * Copyright (C) 2003 Richard Curnow * * This file is subject to the terms and conditions of the GNU General Public @@ -76,12 +76,6 @@ int __init detect_cpu_and_cache_system(void) cpu_data->type = CPU_SH73180; cpu_data->icache.ways = 4; cpu_data->dcache.ways = 4; - - /* - * XXX: Double check this, none of the SH-4A/SH-4AL processors - * should have this, as it's essentially a legacy thing. - */ - cpu_data->flags |= CPU_HAS_PTEA; break; case 0x2001: case 0x2004: @@ -89,8 +83,7 @@ int __init detect_cpu_and_cache_system(void) cpu_data->icache.ways = 4; cpu_data->dcache.ways = 4; - /* Same note as above applies here for PTEA */ - cpu_data->flags |= CPU_HAS_FPU | CPU_HAS_PTEA; + cpu_data->flags |= CPU_HAS_FPU; break; case 0x2006: case 0x200A: @@ -104,6 +97,12 @@ int __init detect_cpu_and_cache_system(void) cpu_data->flags |= CPU_HAS_FPU | CPU_HAS_PERF_COUNTER; break; + case 0x3000: + case 0x3003: + cpu_data->type = CPU_SH7343; + cpu_data->icache.ways = 4; + cpu_data->dcache.ways = 4; + break; case 0x8000: cpu_data->type = CPU_ST40RA; cpu_data->flags |= CPU_HAS_FPU | CPU_HAS_PTEA; diff --git a/arch/sh/kernel/cpu/sh4/setup-sh7343.c b/arch/sh/kernel/cpu/sh4/setup-sh7343.c new file mode 100644 index 000000000000..91d61cf91ba1 --- /dev/null +++ b/arch/sh/kernel/cpu/sh4/setup-sh7343.c @@ -0,0 +1,43 @@ +/* + * SH7343 Setup + * + * Copyright (C) 2006 Paul Mundt + * + * 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 + +static struct plat_sci_port sci_platform_data[] = { + { + .mapbase = 0xffe00000, + .flags = UPF_BOOT_AUTOCONF, + .type = PORT_SCIF, + .irqs = { 80, 81, 83, 82 }, + }, { + .flags = 0, + } +}; + +static struct platform_device sci_device = { + .name = "sh-sci", + .id = -1, + .dev = { + .platform_data = sci_platform_data, + }, +}; + +static struct platform_device *sh7343_devices[] __initdata = { + &sci_device, +}; + +static int __init sh7343_devices_setup(void) +{ + return platform_add_devices(sh7343_devices, + ARRAY_SIZE(sh7343_devices)); +} +__initcall(sh7343_devices_setup); diff --git a/arch/sh/kernel/process.c b/arch/sh/kernel/process.c index c4aa687ba26a..2167746e88f1 100644 --- a/arch/sh/kernel/process.c +++ b/arch/sh/kernel/process.c @@ -310,7 +310,7 @@ ubc_set_tracing(int asid, unsigned long pc) ctrl_outl(0, UBC_BAMRA); - if (cpu_data->type == CPU_SH7729) { + if (cpu_data->type == CPU_SH7729 || cpu_data->type == CPU_SH7710) { ctrl_outw(BBR_INST | BBR_READ | BBR_CPU, UBC_BBRA); ctrl_outl(BRCR_PCBA | BRCR_PCTE, UBC_BRCR); } else { diff --git a/arch/sh/kernel/setup.c b/arch/sh/kernel/setup.c index 4afdec071700..86ef17fe48b5 100644 --- a/arch/sh/kernel/setup.c +++ b/arch/sh/kernel/setup.c @@ -424,25 +424,18 @@ static int __init topology_init(void) subsys_initcall(topology_init); static const char *cpu_name[] = { - [CPU_SH7604] = "SH7604", - [CPU_SH7705] = "SH7705", - [CPU_SH7708] = "SH7708", - [CPU_SH7729] = "SH7729", - [CPU_SH7300] = "SH7300", - [CPU_SH7750] = "SH7750", - [CPU_SH7750S] = "SH7750S", - [CPU_SH7750R] = "SH7750R", - [CPU_SH7751] = "SH7751", - [CPU_SH7751R] = "SH7751R", - [CPU_SH7760] = "SH7760", - [CPU_SH73180] = "SH73180", - [CPU_ST40RA] = "ST40RA", - [CPU_ST40GX1] = "ST40GX1", - [CPU_SH4_202] = "SH4-202", - [CPU_SH4_501] = "SH4-501", - [CPU_SH7770] = "SH7770", - [CPU_SH7780] = "SH7780", - [CPU_SH7781] = "SH7781", + [CPU_SH7604] = "SH7604", [CPU_SH7300] = "SH7300", + [CPU_SH7705] = "SH7705", [CPU_SH7706] = "SH7706", + [CPU_SH7707] = "SH7707", [CPU_SH7708] = "SH7708", + [CPU_SH7709] = "SH7709", [CPU_SH7710] = "SH7710", + [CPU_SH7729] = "SH7729", [CPU_SH7750] = "SH7750", + [CPU_SH7750S] = "SH7750S", [CPU_SH7750R] = "SH7750R", + [CPU_SH7751] = "SH7751", [CPU_SH7751R] = "SH7751R", + [CPU_SH7760] = "SH7760", [CPU_SH73180] = "SH73180", + [CPU_ST40RA] = "ST40RA", [CPU_ST40GX1] = "ST40GX1", + [CPU_SH4_202] = "SH4-202", [CPU_SH4_501] = "SH4-501", + [CPU_SH7770] = "SH7770", [CPU_SH7780] = "SH7780", + [CPU_SH7781] = "SH7781", [CPU_SH7343] = "SH7343", [CPU_SH_NONE] = "Unknown" }; diff --git a/arch/sh/kernel/sh_ksyms.c b/arch/sh/kernel/sh_ksyms.c index bf59d73415d7..d3cbfa2ad4a7 100644 --- a/arch/sh/kernel/sh_ksyms.c +++ b/arch/sh/kernel/sh_ksyms.c @@ -89,7 +89,8 @@ EXPORT_SYMBOL(flush_dcache_page); EXPORT_SYMBOL(__flush_purge_region); #endif -#ifdef CONFIG_MMU +#if defined(CONFIG_MMU) && (defined(CONFIG_CPU_SH4) || \ + defined(CONFIG_SH7705_CACHE_32KB)) EXPORT_SYMBOL(clear_user_page); #endif diff --git a/arch/sh/mm/Kconfig b/arch/sh/mm/Kconfig index bed697c0dc19..b445d02075e8 100644 --- a/arch/sh/mm/Kconfig +++ b/arch/sh/mm/Kconfig @@ -21,6 +21,10 @@ config CPU_SH4A bool select CPU_SH4 +config CPU_SH4AL_DSP + bool + select CPU_SH4A + config CPU_SUBTYPE_ST40 bool select CPU_SH4 @@ -47,6 +51,12 @@ config CPU_SUBTYPE_SH7705 select CPU_SH3 select CPU_HAS_PINT_IRQ +config CPU_SUBTYPE_SH7706 + bool "Support SH7706 processor" + select CPU_SH3 + help + Select SH7706 if you have a 133 Mhz SH-3 HD6417706 CPU. + config CPU_SUBTYPE_SH7707 bool "Support SH7707 processor" select CPU_SH3 @@ -68,6 +78,12 @@ config CPU_SUBTYPE_SH7709 help Select SH7709 if you have a 80 Mhz SH-3 HD6417709 CPU. +config CPU_SUBTYPE_SH7710 + bool "Support SH7710 processor" + select CPU_SH3 + help + Select SH7710 if you have a SH3-DSP SH7710 CPU. + comment "SH-4 Processor Support" config CPU_SUBTYPE_SH7750 @@ -132,10 +148,6 @@ config CPU_SUBTYPE_ST40GX1 comment "SH-4A Processor Support" -config CPU_SUBTYPE_SH73180 - bool "Support SH73180 processor" - select CPU_SH4A - config CPU_SUBTYPE_SH7770 bool "Support SH7770 processor" select CPU_SH4A @@ -145,6 +157,16 @@ config CPU_SUBTYPE_SH7780 select CPU_SH4A select CPU_HAS_INTC2_IRQ +comment "SH4AL-DSP Processor Support" + +config CPU_SUBTYPE_SH73180 + bool "Support SH73180 processor" + select CPU_SH4AL_DSP + +config CPU_SUBTYPE_SH7343 + bool "Support SH7343 processor" + select CPU_SH4AL_DSP + endmenu menu "Memory management options" diff --git a/include/asm-sh/cpu-sh3/cache.h b/include/asm-sh/cpu-sh3/cache.h index 406aa8d9b947..ffe08d2813f9 100644 --- a/include/asm-sh/cpu-sh3/cache.h +++ b/include/asm-sh/cpu-sh3/cache.h @@ -26,12 +26,10 @@ #define CCR_CACHE_ENABLE CCR_CACHE_CE #define CCR_CACHE_INVALIDATE CCR_CACHE_CF -#if defined(CONFIG_CPU_SUBTYPE_SH7705) +#if defined(CONFIG_CPU_SUBTYPE_SH7705) || defined(CONFIG_CPU_SUBTYPE_SH7710) #define CCR3 0xa40000b4 #define CCR_CACHE_16KB 0x00010000 #define CCR_CACHE_32KB 0x00020000 #endif - #endif /* __ASM_CPU_SH3_CACHE_H */ - diff --git a/include/asm-sh/cpu-sh3/mmu_context.h b/include/asm-sh/cpu-sh3/mmu_context.h index a844ea0965b6..bccb7ddb438b 100644 --- a/include/asm-sh/cpu-sh3/mmu_context.h +++ b/include/asm-sh/cpu-sh3/mmu_context.h @@ -27,8 +27,12 @@ #define TRA 0xffffffd0 #define EXPEVT 0xffffffd4 -#if defined(CONFIG_CPU_SUBTYPE_SH7707) || defined(CONFIG_CPU_SUBTYPE_SH7709) || \ - defined(CONFIG_CPU_SUBTYPE_SH7300) || defined(CONFIG_CPU_SUBTYPE_SH7705) +#if defined(CONFIG_CPU_SUBTYPE_SH7707) || \ + defined(CONFIG_CPU_SUBTYPE_SH7709) || \ + defined(CONFIG_CPU_SUBTYPE_SH7706) || \ + defined(CONFIG_CPU_SUBTYPE_SH7300) || \ + defined(CONFIG_CPU_SUBTYPE_SH7705) || \ + defined(CONFIG_CPU_SUBTYPE_SH7710) #define INTEVT 0xa4000000 /* INTEVTE2(0xa4000000) */ #else #define INTEVT 0xffffffd8 diff --git a/include/asm-sh/cpu-sh3/timer.h b/include/asm-sh/cpu-sh3/timer.h index 2082ad956f21..b2394cf76f49 100644 --- a/include/asm-sh/cpu-sh3/timer.h +++ b/include/asm-sh/cpu-sh3/timer.h @@ -20,6 +20,7 @@ * SH7710 * SH7720 * SH7300 + * SH7710 * --------------------------------------------------------------------------- */ diff --git a/include/asm-sh/cpu-sh3/ubc.h b/include/asm-sh/cpu-sh3/ubc.h index 0f809dec4e17..9d308cbe9b29 100644 --- a/include/asm-sh/cpu-sh3/ubc.h +++ b/include/asm-sh/cpu-sh3/ubc.h @@ -11,6 +11,19 @@ #ifndef __ASM_CPU_SH3_UBC_H #define __ASM_CPU_SH3_UBC_H +#if defined(CONFIG_CPU_SUBTYPE_SH7710) +#define UBC_BARA 0xa4ffffb0 +#define UBC_BAMRA 0xa4ffffb4 +#define UBC_BBRA 0xa4ffffb8 +#define UBC_BASRA 0xffffffe4 +#define UBC_BARB 0xa4ffffa0 +#define UBC_BAMRB 0xa4ffffa4 +#define UBC_BBRB 0xa4ffffa8 +#define UBC_BASRB 0xffffffe8 +#define UBC_BDRB 0xa4ffff90 +#define UBC_BDMRB 0xa4ffff94 +#define UBC_BRCR 0xa4ffff98 +#else #define UBC_BARA 0xffffffb0 #define UBC_BAMRA 0xffffffb4 #define UBC_BBRA 0xffffffb8 @@ -22,6 +35,6 @@ #define UBC_BDRB 0xffffff90 #define UBC_BDMRB 0xffffff94 #define UBC_BRCR 0xffffff98 +#endif #endif /* __ASM_CPU_SH3_UBC_H */ - diff --git a/include/asm-sh/irq-sh73180.h b/include/asm-sh/irq-sh73180.h index d705252be260..b28af9a69d72 100644 --- a/include/asm-sh/irq-sh73180.h +++ b/include/asm-sh/irq-sh73180.h @@ -311,6 +311,4 @@ #define IRQ6_PRIORITY 1 #define IRQ7_PRIORITY 1 -int shmse_irq_demux(int irq); - #endif /* __ASM_SH_IRQ_SH73180_H */ diff --git a/include/asm-sh/irq-sh7343.h b/include/asm-sh/irq-sh7343.h new file mode 100644 index 000000000000..5d15419b53b0 --- /dev/null +++ b/include/asm-sh/irq-sh7343.h @@ -0,0 +1,317 @@ +#ifndef __ASM_SH_IRQ_SH7343_H +#define __ASM_SH_IRQ_SH7343_H + +/* + * linux/include/asm-sh/irq-sh7343.h + * + * Copyright (C) 2006 Kenati Technologies Inc. + * Andre Mccurdy + * Ranjit Deshpande + */ + +#undef INTC_IPRA +#undef INTC_IPRB +#undef INTC_IPRC +#undef INTC_IPRD + +#undef DMTE0_IRQ +#undef DMTE1_IRQ +#undef DMTE2_IRQ +#undef DMTE3_IRQ +#undef DMTE4_IRQ +#undef DMTE5_IRQ +#undef DMTE6_IRQ +#undef DMTE7_IRQ +#undef DMAE_IRQ +#undef DMA_IPR_ADDR +#undef DMA_IPR_POS +#undef DMA_PRIORITY + +#undef INTC_IMCR0 +#undef INTC_IMCR1 +#undef INTC_IMCR2 +#undef INTC_IMCR3 +#undef INTC_IMCR4 +#undef INTC_IMCR5 +#undef INTC_IMCR6 +#undef INTC_IMCR7 +#undef INTC_IMCR8 +#undef INTC_IMCR9 +#undef INTC_IMCR10 + + +#define INTC_IPRA 0xA4080000UL +#define INTC_IPRB 0xA4080004UL +#define INTC_IPRC 0xA4080008UL +#define INTC_IPRD 0xA408000CUL +#define INTC_IPRE 0xA4080010UL +#define INTC_IPRF 0xA4080014UL +#define INTC_IPRG 0xA4080018UL +#define INTC_IPRH 0xA408001CUL +#define INTC_IPRI 0xA4080020UL +#define INTC_IPRJ 0xA4080024UL +#define INTC_IPRK 0xA4080028UL +#define INTC_IPRL 0xA408002CUL + +#define INTC_IMR0 0xA4080080UL +#define INTC_IMR1 0xA4080084UL +#define INTC_IMR2 0xA4080088UL +#define INTC_IMR3 0xA408008CUL +#define INTC_IMR4 0xA4080090UL +#define INTC_IMR5 0xA4080094UL +#define INTC_IMR6 0xA4080098UL +#define INTC_IMR7 0xA408009CUL +#define INTC_IMR8 0xA40800A0UL +#define INTC_IMR9 0xA40800A4UL +#define INTC_IMR10 0xA40800A8UL +#define INTC_IMR11 0xA40800ACUL + +#define INTC_IMCR0 0xA40800C0UL +#define INTC_IMCR1 0xA40800C4UL +#define INTC_IMCR2 0xA40800C8UL +#define INTC_IMCR3 0xA40800CCUL +#define INTC_IMCR4 0xA40800D0UL +#define INTC_IMCR5 0xA40800D4UL +#define INTC_IMCR6 0xA40800D8UL +#define INTC_IMCR7 0xA40800DCUL +#define INTC_IMCR8 0xA40800E0UL +#define INTC_IMCR9 0xA40800E4UL +#define INTC_IMCR10 0xA40800E8UL +#define INTC_IMCR11 0xA40800ECUL + +#define INTC_ICR0 0xA4140000UL +#define INTC_ICR1 0xA414001CUL + +#define INTMSK0 0xa4140044 +#define INTMSKCLR0 0xa4140064 +#define INTC_INTPRI0 0xa4140010 + +/* + NOTE: + + *_IRQ = (INTEVT2 - 0x200)/0x20 +*/ + +/* TMU0 */ +#define TMU0_IRQ 16 +#define TMU0_IPR_ADDR INTC_IPRA +#define TMU0_IPR_POS 3 +#define TMU0_PRIORITY 2 + +#define TIMER_IRQ 16 +#define TIMER_IPR_ADDR INTC_IPRA +#define TIMER_IPR_POS 3 +#define TIMER_PRIORITY 2 + +/* TMU1 */ +#define TMU1_IRQ 17 +#define TMU1_IPR_ADDR INTC_IPRA +#define TMU1_IPR_POS 2 +#define TMU1_PRIORITY 2 + +/* TMU2 */ +#define TMU2_IRQ 18 +#define TMU2_IPR_ADDR INTC_IPRA +#define TMU2_IPR_POS 1 +#define TMU2_PRIORITY 2 + +/* LCDC */ +#define LCDC_IRQ 28 +#define LCDC_IPR_ADDR INTC_IPRB +#define LCDC_IPR_POS 2 +#define LCDC_PRIORITY 2 + +/* VIO (Video I/O) */ +#define CEU_IRQ 52 +#define BEU_IRQ 53 +#define VEU_IRQ 54 +#define VOU_IRQ 55 +#define VIO_IPR_ADDR INTC_IPRE +#define VIO_IPR_POS 2 +#define VIO_PRIORITY 2 + +/* MFI (Multi Functional Interface) */ +#define MFI_IRQ 56 +#define MFI_IPR_ADDR INTC_IPRE +#define MFI_IPR_POS 1 +#define MFI_PRIORITY 2 + +/* VPU (Video Processing Unit) */ +#define VPU_IRQ 60 +#define VPU_IPR_ADDR INTC_IPRE +#define VPU_IPR_POS 0 +#define VPU_PRIORITY 2 + +/* 3DG */ +#define TDG_IRQ 63 +#define TDG_IPR_ADDR INTC_IPRJ +#define TDG_IPR_POS 2 +#define TDG_PRIORITY 2 + +/* DMAC(1) */ +#define DMTE0_IRQ 48 +#define DMTE1_IRQ 49 +#define DMTE2_IRQ 50 +#define DMTE3_IRQ 51 +#define DMA1_IPR_ADDR INTC_IPRE +#define DMA1_IPR_POS 3 +#define DMA1_PRIORITY 7 + +/* DMAC(2) */ +#define DMTE4_IRQ 76 +#define DMTE5_IRQ 77 +#define DMA2_IPR_ADDR INTC_IPRF +#define DMA2_IPR_POS 2 +#define DMA2_PRIORITY 7 + +/* SCIF0 */ +#define SCIF_ERI_IRQ 80 +#define SCIF_RXI_IRQ 81 +#define SCIF_BRI_IRQ 82 +#define SCIF_TXI_IRQ 83 +#define SCIF_IPR_ADDR INTC_IPRG +#define SCIF_IPR_POS 3 +#define SCIF_PRIORITY 3 + +/* SIOF0 */ +#define SIOF0_IRQ 84 +#define SIOF0_IPR_ADDR INTC_IPRH +#define SIOF0_IPR_POS 3 +#define SIOF0_PRIORITY 3 + +/* FLCTL (Flash Memory Controller) */ +#define FLSTE_IRQ 92 +#define FLTEND_IRQ 93 +#define FLTRQ0_IRQ 94 +#define FLTRQ1_IRQ 95 +#define FLCTL_IPR_ADDR INTC_IPRH +#define FLCTL_IPR_POS 1 +#define FLCTL_PRIORITY 3 + +/* IIC(0) (IIC Bus Interface) */ +#define IIC0_ALI_IRQ 96 +#define IIC0_TACKI_IRQ 97 +#define IIC0_WAITI_IRQ 98 +#define IIC0_DTEI_IRQ 99 +#define IIC0_IPR_ADDR INTC_IPRH +#define IIC0_IPR_POS 0 +#define IIC0_PRIORITY 3 + +/* IIC(1) (IIC Bus Interface) */ +#define IIC1_ALI_IRQ 44 +#define IIC1_TACKI_IRQ 45 +#define IIC1_WAITI_IRQ 46 +#define IIC1_DTEI_IRQ 47 +#define IIC1_IPR_ADDR INTC_IPRI +#define IIC1_IPR_POS 0 +#define IIC1_PRIORITY 3 + +/* SIO0 */ +#define SIO0_IRQ 88 +#define SIO0_IPR_ADDR INTC_IPRI +#define SIO0_IPR_POS 3 +#define SIO0_PRIORITY 3 + +/* SDHI */ +#define SDHI_SDHII0_IRQ 100 +#define SDHI_SDHII1_IRQ 101 +#define SDHI_SDHII2_IRQ 102 +#define SDHI_SDHII3_IRQ 103 +#define SDHI_IPR_ADDR INTC_IPRK +#define SDHI_IPR_POS 0 +#define SDHI_PRIORITY 3 + +/* SIU (Sound Interface Unit) */ +#define SIU_IRQ 108 +#define SIU_IPR_ADDR INTC_IPRJ +#define SIU_IPR_POS 1 +#define SIU_PRIORITY 3 + +#define PORT_PACR 0xA4050100UL +#define PORT_PBCR 0xA4050102UL +#define PORT_PCCR 0xA4050104UL +#define PORT_PDCR 0xA4050106UL +#define PORT_PECR 0xA4050108UL +#define PORT_PFCR 0xA405010AUL +#define PORT_PGCR 0xA405010CUL +#define PORT_PHCR 0xA405010EUL +#define PORT_PJCR 0xA4050110UL +#define PORT_PKCR 0xA4050112UL +#define PORT_PLCR 0xA4050114UL +#define PORT_SCPCR 0xA4050116UL +#define PORT_PMCR 0xA4050118UL +#define PORT_PNCR 0xA405011AUL +#define PORT_PQCR 0xA405011CUL +#define PORT_PRCR 0xA405011EUL +#define PORT_PTCR 0xA405014CUL +#define PORT_PUCR 0xA405014EUL +#define PORT_PVCR 0xA4050150UL + +#define PORT_PSELA 0xA4050140UL +#define PORT_PSELB 0xA4050142UL +#define PORT_PSELC 0xA4050144UL +#define PORT_PSELE 0xA4050158UL + +#define PORT_HIZCRA 0xA4050146UL +#define PORT_HIZCRB 0xA4050148UL +#define PORT_DRVCR 0xA405014AUL + +#define PORT_PADR 0xA4050120UL +#define PORT_PBDR 0xA4050122UL +#define PORT_PCDR 0xA4050124UL +#define PORT_PDDR 0xA4050126UL +#define PORT_PEDR 0xA4050128UL +#define PORT_PFDR 0xA405012AUL +#define PORT_PGDR 0xA405012CUL +#define PORT_PHDR 0xA405012EUL +#define PORT_PJDR 0xA4050130UL +#define PORT_PKDR 0xA4050132UL +#define PORT_PLDR 0xA4050134UL +#define PORT_SCPDR 0xA4050136UL +#define PORT_PMDR 0xA4050138UL +#define PORT_PNDR 0xA405013AUL +#define PORT_PQDR 0xA405013CUL +#define PORT_PRDR 0xA405013EUL +#define PORT_PTDR 0xA405016CUL +#define PORT_PUDR 0xA405016EUL +#define PORT_PVDR 0xA4050170UL + +#define IRQ0_IRQ 32 +#define IRQ1_IRQ 33 +#define IRQ2_IRQ 34 +#define IRQ3_IRQ 35 +#define IRQ4_IRQ 36 +#define IRQ5_IRQ 37 +#define IRQ6_IRQ 38 +#define IRQ7_IRQ 39 + +#define INTPRI00 0xA4140010UL + +#define IRQ0_IPR_ADDR INTPRI00 +#define IRQ1_IPR_ADDR INTPRI00 +#define IRQ2_IPR_ADDR INTPRI00 +#define IRQ3_IPR_ADDR INTPRI00 +#define IRQ4_IPR_ADDR INTPRI00 +#define IRQ5_IPR_ADDR INTPRI00 +#define IRQ6_IPR_ADDR INTPRI00 +#define IRQ7_IPR_ADDR INTPRI00 + +#define IRQ0_IPR_POS 7 +#define IRQ1_IPR_POS 6 +#define IRQ2_IPR_POS 5 +#define IRQ3_IPR_POS 4 +#define IRQ4_IPR_POS 3 +#define IRQ5_IPR_POS 2 +#define IRQ6_IPR_POS 1 +#define IRQ7_IPR_POS 0 + +#define IRQ0_PRIORITY 1 +#define IRQ1_PRIORITY 1 +#define IRQ2_PRIORITY 1 +#define IRQ3_PRIORITY 1 +#define IRQ4_PRIORITY 1 +#define IRQ5_PRIORITY 1 +#define IRQ6_PRIORITY 1 +#define IRQ7_PRIORITY 1 + +#endif /* __ASM_SH_IRQ_SH7343_H */ diff --git a/include/asm-sh/irq.h b/include/asm-sh/irq.h index 648102e9236f..00886f9adb4d 100644 --- a/include/asm-sh/irq.h +++ b/include/asm-sh/irq.h @@ -192,7 +192,7 @@ #if defined (CONFIG_CPU_SUBTYPE_SH7707) || defined (CONFIG_CPU_SUBTYPE_SH7708) || \ defined (CONFIG_CPU_SUBTYPE_SH7709) || defined (CONFIG_CPU_SUBTYPE_SH7750) || \ - defined (CONFIG_CPU_SUBTYPE_SH7751) + defined (CONFIG_CPU_SUBTYPE_SH7751) || defined (CONFIG_CPU_SUBTYPE_SH7706) #define SCI_ERI_IRQ 23 #define SCI_RXI_IRQ 24 #define SCI_TXI_IRQ 25 @@ -207,6 +207,7 @@ #define SCIF0_IPR_POS 3 #define SCIF0_PRIORITY 3 #elif defined(CONFIG_CPU_SUBTYPE_SH7705) || \ + defined(CONFIG_CPU_SUBTYPE_SH7706) || \ defined(CONFIG_CPU_SUBTYPE_SH7707) || \ defined(CONFIG_CPU_SUBTYPE_SH7709) #define SCIF_ERI_IRQ 56 @@ -261,9 +262,12 @@ #elif defined(CONFIG_CPU_SUBTYPE_SH7708) # define ONCHIP_NR_IRQS 32 #elif defined(CONFIG_CPU_SUBTYPE_SH7709) || \ + defined(CONFIG_CPU_SUBTYPE_SH7706) || \ defined(CONFIG_CPU_SUBTYPE_SH7705) # define ONCHIP_NR_IRQS 64 // Actually 61 # define PINT_NR_IRQS 16 +#elif defined(CONFIG_CPU_SUBTYPE_SH7710) +# define ONCHIP_NR_IRQS 104 #elif defined(CONFIG_CPU_SUBTYPE_SH7750) # define ONCHIP_NR_IRQS 48 // Actually 44 #elif defined(CONFIG_CPU_SUBTYPE_SH7751) @@ -275,7 +279,8 @@ #elif defined(CONFIG_CPU_SUBTYPE_ST40STB1) # define ONCHIP_NR_IRQS 144 #elif defined(CONFIG_CPU_SUBTYPE_SH7300) || \ - defined(CONFIG_CPU_SUBTYPE_SH73180) + defined(CONFIG_CPU_SUBTYPE_SH73180) || \ + defined(CONFIG_CPU_SUBTYPE_SH7343) # define ONCHIP_NR_IRQS 109 #elif defined(CONFIG_CPU_SUBTYPE_SH7780) # define ONCHIP_NR_IRQS 111 @@ -476,8 +481,10 @@ extern int ipr_irq_demux(int irq); #define INTC_ICR 0xfffffee0UL #elif defined(CONFIG_CPU_SUBTYPE_SH7705) || \ + defined(CONFIG_CPU_SUBTYPE_SH7706) || \ defined(CONFIG_CPU_SUBTYPE_SH7707) || \ - defined(CONFIG_CPU_SUBTYPE_SH7709) + defined(CONFIG_CPU_SUBTYPE_SH7709) || \ + defined(CONFIG_CPU_SUBTYPE_SH7710) #define INTC_IRR0 0xa4000004UL #define INTC_IRR1 0xa4000006UL #define INTC_IRR2 0xa4000008UL @@ -496,8 +503,105 @@ extern int ipr_irq_demux(int irq); #define INTC_IPRF 0xa4080000UL #define INTC_IPRG 0xa4080002UL #define INTC_IPRH 0xa4080004UL -#endif +#elif defined(CONFIG_CPU_SUBTYPE_SH7710) +/* Interrupt Controller Registers */ +#undef INTC_IPRA +#undef INTC_IPRB +#define INTC_IPRA 0xA414FEE2UL +#define INTC_IPRB 0xA414FEE4UL +#define INTC_IPRF 0xA4080000UL +#define INTC_IPRG 0xA4080002UL +#define INTC_IPRH 0xA4080004UL +#define INTC_IPRI 0xA4080006UL + +#undef INTC_ICR0 +#undef INTC_ICR1 +#define INTC_ICR0 0xA414FEE0UL +#define INTC_ICR1 0xA4140010UL + +#define INTC_IRR0 0xa4000004UL +#define INTC_IRR1 0xa4000006UL +#define INTC_IRR2 0xa4000008UL +#define INTC_IRR3 0xa400000AUL +#define INTC_IRR4 0xa400000CUL +#define INTC_IRR5 0xa4080020UL +#define INTC_IRR7 0xa4080024UL +#define INTC_IRR8 0xa4080026UL + +/* Interrupt numbers */ +#define TIMER2_IRQ 18 +#define TIMER2_IPR_ADDR INTC_IPRA +#define TIMER2_IPR_POS 1 +#define TIMER2_PRIORITY 2 +/* WDT */ +#define WDT_IRQ 27 +#define WDT_IPR_ADDR INTC_IPRB +#define WDT_IPR_POS 3 +#define WDT_PRIORITY 2 + +#define SCIF0_ERI_IRQ 52 +#define SCIF0_RXI_IRQ 53 +#define SCIF0_BRI_IRQ 54 +#define SCIF0_TXI_IRQ 55 +#define SCIF0_IPR_ADDR INTC_IPRE +#define SCIF0_IPR_POS 2 +#define SCIF0_PRIORITY 3 + +#define DMTE4_IRQ 76 +#define DMTE5_IRQ 77 +#define DMA2_IPR_ADDR INTC_IPRF +#define DMA2_IPR_POS 2 +#define DMA2_PRIORITY 7 + +#define IPSEC_IRQ 79 +#define IPSEC_IPR_ADDR INTC_IPRF +#define IPSEC_IPR_POS 3 +#define IPSEC_PRIORITY 3 + +/* EDMAC */ +#define EDMAC0_IRQ 80 +#define EDMAC0_IPR_ADDR INTC_IPRG +#define EDMAC0_IPR_POS 3 +#define EDMAC0_PRIORITY 3 + +#define EDMAC1_IRQ 81 +#define EDMAC1_IPR_ADDR INTC_IPRG +#define EDMAC1_IPR_POS 2 +#define EDMAC1_PRIORITY 3 + +#define EDMAC2_IRQ 82 +#define EDMAC2_IPR_ADDR INTC_IPRG +#define EDMAC2_IPR_POS 1 +#define EDMAC2_PRIORITY 3 + +/* SIOF */ +#define SIOF0_ERI_IRQ 96 +#define SIOF0_TXI_IRQ 97 +#define SIOF0_RXI_IRQ 98 +#define SIOF0_CCI_IRQ 99 +#define SIOF0_IPR_ADDR INTC_IPRH +#define SIOF0_IPR_POS 0 +#define SIOF0_PRIORITY 7 + +#define SIOF1_ERI_IRQ 100 +#define SIOF1_TXI_IRQ 101 +#define SIOF1_RXI_IRQ 102 +#define SIOF1_CCI_IRQ 103 +#define SIOF1_IPR_ADDR INTC_IPRI +#define SIOF1_IPR_POS 1 +#define SIOF1_PRIORITY 7 +#endif /* CONFIG_CPU_SUBTYPE_SH7710 */ + +#if defined(CONFIG_CPU_SUBTYPE_SH7710) +#define PORT_PACR 0xa4050100UL +#define PORT_PBCR 0xa4050102UL +#define PORT_PCCR 0xa4050104UL +#define PORT_PETCR 0xa4050106UL +#define PORT_PADR 0xa4050120UL +#define PORT_PBDR 0xa4050122UL +#define PORT_PCDR 0xa4050124UL +#else #define PORT_PACR 0xa4000100UL #define PORT_PBCR 0xa4000102UL #define PORT_PCCR 0xa4000104UL @@ -506,6 +610,7 @@ extern int ipr_irq_demux(int irq); #define PORT_PBDR 0xa4000122UL #define PORT_PCDR 0xa4000124UL #define PORT_PFDR 0xa400012aUL +#endif #define IRQ0_IRQ 32 #define IRQ1_IRQ 33 @@ -599,6 +704,8 @@ void intc2_add_clear_irq(int irq, int (*fn)(int)); #endif +extern int shmse_irq_demux(int irq); + static inline int generic_irq_demux(int irq) { return irq; @@ -614,4 +721,8 @@ static inline int generic_irq_demux(int irq) #include #endif +#if defined(CONFIG_CPU_SUBTYPE_SH7343) +#include +#endif + #endif /* __ASM_SH_IRQ_H */ diff --git a/include/asm-sh/processor.h b/include/asm-sh/processor.h index a22732007dd4..3b3ef4f2bf31 100644 --- a/include/asm-sh/processor.h +++ b/include/asm-sh/processor.h @@ -38,13 +38,15 @@ enum cpu_type { CPU_SH7604, /* SH-3 types */ - CPU_SH7705, CPU_SH7707, CPU_SH7708, CPU_SH7708S, CPU_SH7708R, - CPU_SH7709, CPU_SH7709A, CPU_SH7729, CPU_SH7300, + CPU_SH7705, CPU_SH7706, CPU_SH7707, + CPU_SH7708, CPU_SH7708S, CPU_SH7708R, + CPU_SH7709, CPU_SH7709A, CPU_SH7710, + CPU_SH7729, CPU_SH7300, /* SH-4 types */ CPU_SH7750, CPU_SH7750S, CPU_SH7750R, CPU_SH7751, CPU_SH7751R, CPU_SH7760, CPU_ST40RA, CPU_ST40GX1, CPU_SH4_202, CPU_SH4_501, - CPU_SH73180, CPU_SH7770, CPU_SH7780, CPU_SH7781, + CPU_SH73180, CPU_SH7343, CPU_SH7770, CPU_SH7780, CPU_SH7781, /* Unknown subtype */ CPU_SH_NONE -- cgit v1.2.3 From 51e22e7a05c1c6f2e38ac7459d3404e32e543b75 Mon Sep 17 00:00:00 2001 From: Takashi YOSHII Date: Wed, 27 Sep 2006 17:41:31 +0900 Subject: sh: SHMIN board support. This adds support for the SHMIN SH7706 board. Signed-off-by: Takashi YOSHII Signed-off-by: Paul Mundt --- arch/sh/Kconfig | 8 +- arch/sh/Makefile | 1 + arch/sh/boards/shmin/Makefile | 5 + arch/sh/boards/shmin/setup.c | 49 +++ arch/sh/configs/shmin_defconfig | 827 ++++++++++++++++++++++++++++++++++++++++ arch/sh/tools/mach-types | 1 + include/asm-sh/shmin/shmin.h | 9 + 7 files changed, 899 insertions(+), 1 deletion(-) create mode 100644 arch/sh/boards/shmin/Makefile create mode 100644 arch/sh/boards/shmin/setup.c create mode 100644 arch/sh/configs/shmin_defconfig create mode 100644 include/asm-sh/shmin/shmin.h (limited to 'include') diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig index 557e7232141c..5bec3af164e5 100644 --- a/arch/sh/Kconfig +++ b/arch/sh/Kconfig @@ -222,6 +222,12 @@ config SH_TITAN Select Titan if you are configuring for a Nimble Microsystems NetEngine NP51R. +config SH_SHMIN + bool "SHMIN" + select CPU_SUBTYPE_SH7706 + help + Select SHMIN if configureing for the SHMIN board + config SH_UNKNOWN bool "BareCPU" help @@ -295,7 +301,7 @@ config SH_RTC bool depends on !SH_DREAMCAST && !SH_SATURN && !SH_7300_SOLUTION_ENGINE && \ !SH_73180_SOLUTION_ENGINE && !SH_LANDISK && \ - !SH_R7780RP + !SH_R7780RP && !SH_SHMIN default y help Selecting this option will allow the Linux kernel to emulate diff --git a/arch/sh/Makefile b/arch/sh/Makefile index d118e48ea1ba..8ad0a286ff8f 100644 --- a/arch/sh/Makefile +++ b/arch/sh/Makefile @@ -113,6 +113,7 @@ machdir-$(CONFIG_SH_R7780RP) := renesas/r7780rp machdir-$(CONFIG_SH_SH4202_MICRODEV) := superh/microdev machdir-$(CONFIG_SH_LANDISK) := landisk machdir-$(CONFIG_SH_TITAN) := titan +machdir-$(CONFIG_SH_SHMIN) := shmin machdir-$(CONFIG_SH_UNKNOWN) := unknown incdir-y := $(notdir $(machdir-y)) diff --git a/arch/sh/boards/shmin/Makefile b/arch/sh/boards/shmin/Makefile new file mode 100644 index 000000000000..3190cc72430e --- /dev/null +++ b/arch/sh/boards/shmin/Makefile @@ -0,0 +1,5 @@ +# +# Makefile for the SHMIN board. +# + +obj-y := setup.o diff --git a/arch/sh/boards/shmin/setup.c b/arch/sh/boards/shmin/setup.c new file mode 100644 index 000000000000..a950ec4d765d --- /dev/null +++ b/arch/sh/boards/shmin/setup.c @@ -0,0 +1,49 @@ +/* + * arch/sh/boards/shmin/setup.c + * + * Copyright (C) 2006 Takashi YOSHII + * + * SHMIN Support. + */ +#include +#include +#include +#include +#include +#include + +#define PFC_PHCR 0xa400010e + +const char *get_system_type(void) +{ + return "SHMIN"; +} + +static void __init init_shmin_irq(void) +{ + ctrl_outw(0x2a00, PFC_PHCR); // IRQ0-3=IRQ + ctrl_outw(0x0aaa, INTC_ICR1); // IRQ0-3=IRQ-mode,Low-active. +} + +void __init platform_setup(void) +{ +} + +static void __iomem *shmin_ioport_map(unsigned long port, unsigned int size) +{ + static int dummy; + + if ((port & ~0x1f) == SHMIN_NE_BASE) + return (void __iomem *)(SHMIN_IO_BASE + port); + + dummy = 0; + + return &dummy; + +} + +struct sh_machine_vector mv_shmin __initmv = { + .mv_init_irq = init_shmin_irq, + .mv_ioport_map = shmin_ioport_map, +}; +ALIAS_MV(shmin) diff --git a/arch/sh/configs/shmin_defconfig b/arch/sh/configs/shmin_defconfig new file mode 100644 index 000000000000..382b3bd3963b --- /dev/null +++ b/arch/sh/configs/shmin_defconfig @@ -0,0 +1,827 @@ +# +# Automatically generated make config: don't edit +# Linux kernel version: 2.6.17 +# Wed Aug 2 01:45:03 2006 +# +CONFIG_SUPERH=y +CONFIG_RWSEM_GENERIC_SPINLOCK=y +CONFIG_GENERIC_FIND_NEXT_BIT=y +CONFIG_GENERIC_HWEIGHT=y +CONFIG_GENERIC_HARDIRQS=y +CONFIG_GENERIC_IRQ_PROBE=y +CONFIG_GENERIC_CALIBRATE_DELAY=y +CONFIG_PTRACE=y + +# +# Code maturity level options +# +CONFIG_EXPERIMENTAL=y +CONFIG_BROKEN_ON_SMP=y +CONFIG_INIT_ENV_ARG_LIMIT=32 + +# +# General setup +# +CONFIG_LOCALVERSION="" +CONFIG_LOCALVERSION_AUTO=y +# CONFIG_SWAP is not set +# CONFIG_SYSVIPC is not set +# CONFIG_POSIX_MQUEUE is not set +# CONFIG_BSD_PROCESS_ACCT is not set +# CONFIG_SYSCTL is not set +# CONFIG_AUDIT is not set +# CONFIG_IKCONFIG is not set +# CONFIG_RELAY is not set +CONFIG_INITRAMFS_SOURCE="" +# CONFIG_UID16 is not set +CONFIG_CC_OPTIMIZE_FOR_SIZE=y +CONFIG_EMBEDDED=y +# CONFIG_KALLSYMS is not set +# CONFIG_HOTPLUG is not set +CONFIG_PRINTK=y +# CONFIG_BUG is not set +# CONFIG_ELF_CORE is not set +# CONFIG_BASE_FULL is not set +# CONFIG_FUTEX is not set +# CONFIG_EPOLL is not set +# CONFIG_SHMEM is not set +# CONFIG_SLAB is not set +CONFIG_TINY_SHMEM=y +CONFIG_BASE_SMALL=1 +CONFIG_SLOB=y +CONFIG_OBSOLETE_INTERMODULE=y + +# +# Loadable module support +# +# CONFIG_MODULES is not set + +# +# Block layer +# +# CONFIG_LBD is not set +# CONFIG_LSF 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_DEFAULT_AS is not set +# CONFIG_DEFAULT_DEADLINE is not set +# CONFIG_DEFAULT_CFQ is not set +CONFIG_DEFAULT_NOOP=y +CONFIG_DEFAULT_IOSCHED="noop" + +# +# System type +# +# CONFIG_SH_SOLUTION_ENGINE is not set +# CONFIG_SH_7709_SOLUTION_ENGINE is not set +# CONFIG_SH_7751_SOLUTION_ENGINE is not set +# CONFIG_SH_7300_SOLUTION_ENGINE is not set +# CONFIG_SH_73180_SOLUTION_ENGINE is not set +# CONFIG_SH_7751_SYSTEMH is not set +# CONFIG_SH_STB1_HARP is not set +# CONFIG_SH_STB1_OVERDRIVE is not set +# CONFIG_SH_HP6XX is not set +# CONFIG_SH_CQREEK is not set +# CONFIG_SH_DMIDA is not set +# CONFIG_SH_EC3104 is not set +# CONFIG_SH_SATURN is not set +# CONFIG_SH_DREAMCAST is not set +# CONFIG_SH_CAT68701 is not set +# CONFIG_SH_BIGSUR is not set +# CONFIG_SH_SH2000 is not set +# CONFIG_SH_ADX is not set +# CONFIG_SH_MPC1211 is not set +# CONFIG_SH_SH03 is not set +# CONFIG_SH_SECUREEDGE5410 is not set +# CONFIG_SH_HS7751RVOIP is not set +# CONFIG_SH_RTS7751R2D is not set +# CONFIG_SH_R7780RP is not set +# CONFIG_SH_EDOSK7705 is not set +# CONFIG_SH_SH4202_MICRODEV is not set +# CONFIG_SH_LANDISK is not set +# CONFIG_SH_TITAN is not set +CONFIG_SH_SHMIN=y +# CONFIG_SH_UNKNOWN is not set + +# +# Processor selection +# +CONFIG_CPU_SH3=y + +# +# SH-2 Processor Support +# +# CONFIG_CPU_SUBTYPE_SH7604 is not set + +# +# SH-3 Processor Support +# +# CONFIG_CPU_SUBTYPE_SH7300 is not set +# CONFIG_CPU_SUBTYPE_SH7705 is not set +CONFIG_CPU_SUBTYPE_SH7706=y +# CONFIG_CPU_SUBTYPE_SH7707 is not set +# CONFIG_CPU_SUBTYPE_SH7708 is not set +# CONFIG_CPU_SUBTYPE_SH7709 is not set + +# +# SH-4 Processor Support +# +# CONFIG_CPU_SUBTYPE_SH7750 is not set +# CONFIG_CPU_SUBTYPE_SH7091 is not set +# CONFIG_CPU_SUBTYPE_SH7750R is not set +# CONFIG_CPU_SUBTYPE_SH7750S is not set +# CONFIG_CPU_SUBTYPE_SH7751 is not set +# CONFIG_CPU_SUBTYPE_SH7751R is not set +# CONFIG_CPU_SUBTYPE_SH7760 is not set +# CONFIG_CPU_SUBTYPE_SH4_202 is not set + +# +# ST40 Processor Support +# +# CONFIG_CPU_SUBTYPE_ST40STB1 is not set +# CONFIG_CPU_SUBTYPE_ST40GX1 is not set + +# +# SH-4A Processor Support +# +# CONFIG_CPU_SUBTYPE_SH73180 is not set +# CONFIG_CPU_SUBTYPE_SH7770 is not set +# CONFIG_CPU_SUBTYPE_SH7780 is not set + +# +# Memory management options +# +CONFIG_MMU=y +CONFIG_PAGE_OFFSET=0x80000000 +CONFIG_MEMORY_START=0x0c000000 +CONFIG_MEMORY_SIZE=0x00800000 +CONFIG_SELECT_MEMORY_MODEL=y +CONFIG_FLATMEM_MANUAL=y +# CONFIG_DISCONTIGMEM_MANUAL is not set +# CONFIG_SPARSEMEM_MANUAL is not set +CONFIG_FLATMEM=y +CONFIG_FLAT_NODE_MEM_MAP=y +# CONFIG_SPARSEMEM_STATIC is not set +CONFIG_SPLIT_PTLOCK_CPUS=4 + +# +# Cache configuration +# +# CONFIG_SH_DIRECT_MAPPED is not set +# CONFIG_SH_WRITETHROUGH is not set +# CONFIG_SH_OCRAM is not set + +# +# Processor features +# +CONFIG_CPU_LITTLE_ENDIAN=y +# CONFIG_SH_FPU_EMU is not set +# CONFIG_SH_DSP is not set +# CONFIG_SH_ADC is not set +CONFIG_CPU_HAS_INTEVT=y +CONFIG_CPU_HAS_SR_RB=y + +# +# Timer support +# +CONFIG_SH_TMU=y +CONFIG_SH_PCLK_FREQ=32000000 + +# +# CPU Frequency scaling +# +# CONFIG_CPU_FREQ is not set + +# +# DMA support +# +# CONFIG_SH_DMA is not set + +# +# Companion Chips +# +# CONFIG_HD6446X_SERIES is not set + +# +# Kernel features +# +# CONFIG_KEXEC is not set +# CONFIG_PREEMPT is not set +# CONFIG_SMP is not set + +# +# Boot options +# +CONFIG_ZERO_PAGE_OFFSET=0x00001000 +CONFIG_BOOT_LINK_OFFSET=0x00210000 +# CONFIG_UBC_WAKEUP is not set +CONFIG_CMDLINE_BOOL=y +CONFIG_CMDLINE="console=ttySC1,115200 root=1f01 mtdparts=phys_mapped_flash:64k(firm)ro,-(sys) netdev=34,0x300,eth0 " + +# +# Bus options +# +# CONFIG_PCI is not set + +# +# PCCARD (PCMCIA/CardBus) support +# +# CONFIG_PCCARD is not set + +# +# PCI Hotplug Support +# + +# +# Executable file formats +# +CONFIG_BINFMT_ELF=y +# CONFIG_BINFMT_FLAT is not set +# CONFIG_BINFMT_MISC is not set + +# +# Power management options (EXPERIMENTAL) +# +# CONFIG_PM is not set + +# +# Networking +# +CONFIG_NET=y + +# +# Networking options +# +# CONFIG_NETDEBUG is not set +# CONFIG_PACKET is not set +CONFIG_UNIX=y +# 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=y +# CONFIG_IP_PNP_DHCP is not set +# CONFIG_IP_PNP_BOOTP is not set +# CONFIG_IP_PNP_RARP is not set +# CONFIG_NET_IPIP is not set +# CONFIG_NET_IPGRE is not set +# CONFIG_ARPD 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_XFRM_TUNNEL is not set +# CONFIG_INET_TUNNEL is not set +CONFIG_INET_DIAG=y +CONFIG_INET_TCP_DIAG=y +# CONFIG_TCP_CONG_ADVANCED is not set +CONFIG_TCP_CONG_BIC=y +# CONFIG_IPV6 is not set +# CONFIG_INET6_XFRM_TUNNEL is not set +# CONFIG_INET6_TUNNEL is not set +# CONFIG_NETFILTER is not set + +# +# DCCP Configuration (EXPERIMENTAL) +# +# CONFIG_IP_DCCP is not set + +# +# SCTP Configuration (EXPERIMENTAL) +# +# CONFIG_IP_SCTP is not set + +# +# TIPC Configuration (EXPERIMENTAL) +# +# CONFIG_TIPC is not set +# CONFIG_ATM 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_X25 is not set +# CONFIG_LAPB is not set +# CONFIG_NET_DIVERT is not set +# CONFIG_ECONET is not set +# CONFIG_WAN_ROUTER is not set + +# +# QoS and/or fair queueing +# +# CONFIG_NET_SCHED 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 +# CONFIG_IEEE80211 is not set + +# +# Device Drivers +# + +# +# Generic Driver Options +# +CONFIG_STANDALONE=y +CONFIG_PREVENT_FIRMWARE_BUILD=y +# CONFIG_FW_LOADER is not set + +# +# Connector - unified userspace <-> kernelspace linker +# +# CONFIG_CONNECTOR 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=y +# CONFIG_MTD_REDBOOT_PARTS is not set +CONFIG_MTD_CMDLINE_PARTS=y + +# +# 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 +# CONFIG_RFD_FTL is not set + +# +# RAM/ROM/Flash chip drivers +# +# CONFIG_MTD_CFI is not set +CONFIG_MTD_JEDECPROBE=y +CONFIG_MTD_GEN_PROBE=y +# CONFIG_MTD_CFI_ADV_OPTIONS 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_CFI_INTELEXT is not set +CONFIG_MTD_CFI_AMDSTD=y +# CONFIG_MTD_CFI_STAA is not set +CONFIG_MTD_CFI_UTIL=y +# CONFIG_MTD_RAM is not set +# CONFIG_MTD_ROM is not set +# CONFIG_MTD_ABSENT is not set +# CONFIG_MTD_OBSOLETE_CHIPS is not set + +# +# Mapping drivers for chip access +# +# CONFIG_MTD_COMPLEX_MAPPINGS is not set +CONFIG_MTD_PHYSMAP=y +CONFIG_MTD_PHYSMAP_START=0xa0000000 +CONFIG_MTD_PHYSMAP_LEN=0x80000 +CONFIG_MTD_PHYSMAP_BANKWIDTH=1 +# CONFIG_MTD_PLATRAM is not set + +# +# Self-contained MTD device drivers +# +# CONFIG_MTD_SLRAM is not set +# CONFIG_MTD_PHRAM is not set +# CONFIG_MTD_MTDRAM is not set +# CONFIG_MTD_BLOCK2MTD 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 + +# +# OneNAND Flash Device Drivers +# +# CONFIG_MTD_ONENAND is not set + +# +# Parallel port support +# +# CONFIG_PARPORT is not set + +# +# Plug and Play support +# + +# +# Block devices +# +# CONFIG_BLK_DEV_COW_COMMON is not set +CONFIG_BLK_DEV_LOOP=y +# CONFIG_BLK_DEV_CRYPTOLOOP is not set +# CONFIG_BLK_DEV_NBD is not set +# CONFIG_BLK_DEV_RAM is not set +# CONFIG_BLK_DEV_INITRD is not set +# CONFIG_CDROM_PKTCDVD is not set +# CONFIG_ATA_OVER_ETH is not set + +# +# ATA/ATAPI/MFM/RLL support +# +# CONFIG_IDE is not set + +# +# SCSI device support +# +# CONFIG_RAID_ATTRS is not set +# 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_NETDEVICES=y +# CONFIG_DUMMY is not set +# CONFIG_BONDING is not set +# CONFIG_EQUALIZER is not set +# CONFIG_TUN is not set + +# +# PHY device support +# +# CONFIG_PHYLIB is not set + +# +# Ethernet (10 or 100Mbit) +# +CONFIG_NET_ETHERNET=y +# CONFIG_MII is not set +# CONFIG_STNIC is not set +# CONFIG_SMC91X is not set +CONFIG_NE2000=y + +# +# Ethernet (1000 Mbit) +# + +# +# Ethernet (10000 Mbit) +# + +# +# Token Ring devices +# + +# +# Wireless LAN (non-hamradio) +# +# CONFIG_NET_RADIO is not set + +# +# Wan interfaces +# +# CONFIG_WAN is not set +# CONFIG_PPP is not set +# CONFIG_SLIP is not set +# CONFIG_SHAPER is not set +# CONFIG_NETCONSOLE is not set +# CONFIG_NETPOLL is not set +# CONFIG_NET_POLL_CONTROLLER is not set + +# +# ISDN subsystem +# +# CONFIG_ISDN is not set + +# +# Telephony Support +# +# CONFIG_PHONE is not set + +# +# Input device support +# +# CONFIG_INPUT 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_SERIAL_SH_SCI=y +CONFIG_SERIAL_SH_SCI_NR_UARTS=2 +CONFIG_SERIAL_SH_SCI_CONSOLE=y +CONFIG_SERIAL_CORE=y +CONFIG_SERIAL_CORE_CONSOLE=y +CONFIG_UNIX98_PTYS=y +CONFIG_LEGACY_PTYS=y +CONFIG_LEGACY_PTY_COUNT=256 + +# +# 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 +# +# CONFIG_TCG_TPM is not set +# CONFIG_TELCLOCK is not set + +# +# I2C support +# +# CONFIG_I2C is not set + +# +# SPI support +# +# CONFIG_SPI is not set +# CONFIG_SPI_MASTER is not set + +# +# Dallas's 1-wire bus +# +# CONFIG_W1 is not set + +# +# Hardware Monitoring support +# +# CONFIG_HWMON is not set +# CONFIG_HWMON_VID is not set + +# +# Misc devices +# + +# +# Multimedia devices +# +# CONFIG_VIDEO_DEV is not set +CONFIG_VIDEO_V4L2=y + +# +# Digital Video Broadcasting Devices +# +# CONFIG_DVB 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 +# CONFIG_USB_ARCH_HAS_EHCI is not set + +# +# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support' +# + +# +# USB Gadget Support +# +# CONFIG_USB_GADGET is not set + +# +# MMC/SD Card support +# +# CONFIG_MMC is not set + +# +# LED devices +# +# CONFIG_NEW_LEDS is not set + +# +# LED drivers +# + +# +# LED Triggers +# + +# +# InfiniBand support +# + +# +# EDAC - error detection and reporting (RAS) (EXPERIMENTAL) +# + +# +# Real Time Clock +# +# CONFIG_RTC_CLASS is not set + +# +# File systems +# +# CONFIG_EXT2_FS is not set +# CONFIG_EXT3_FS is not set +# CONFIG_REISERFS_FS is not set +# CONFIG_JFS_FS is not set +# CONFIG_FS_POSIX_ACL is not set +# CONFIG_XFS_FS is not set +# CONFIG_OCFS2_FS is not set +# CONFIG_MINIX_FS is not set +# CONFIG_ROMFS_FS is not set +# CONFIG_INOTIFY is not set +# CONFIG_QUOTA is not set +# CONFIG_DNOTIFY is not set +# CONFIG_AUTOFS_FS is not set +# CONFIG_AUTOFS4_FS is not set +# CONFIG_FUSE_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_PROC_KCORE is not set +# CONFIG_SYSFS is not set +CONFIG_TMPFS=y +# CONFIG_HUGETLBFS is not set +# CONFIG_HUGETLB_PAGE is not set +CONFIG_RAMFS=y + +# +# Miscellaneous filesystems +# +# CONFIG_ADFS_FS is not set +# CONFIG_AFFS_FS is not set +# CONFIG_HFS_FS is not set +# CONFIG_HFSPLUS_FS is not set +# CONFIG_BEFS_FS is not set +# CONFIG_BFS_FS is not set +# CONFIG_EFS_FS is not set +# CONFIG_JFFS_FS is not set +# CONFIG_JFFS2_FS is not set +CONFIG_CRAMFS=y +# 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_NFS_V4 is not set +# CONFIG_NFS_DIRECTIO is not set +# CONFIG_NFSD is not set +CONFIG_ROOT_NFS=y +CONFIG_LOCKD=y +CONFIG_LOCKD_V4=y +CONFIG_NFS_COMMON=y +CONFIG_SUNRPC=y +# CONFIG_RPCSEC_GSS_KRB5 is not set +# CONFIG_RPCSEC_GSS_SPKM3 is not set +# CONFIG_SMB_FS is not set +# CONFIG_CIFS is not set +# CONFIG_NCP_FS is not set +# CONFIG_CODA_FS is not set +# CONFIG_AFS_FS is not set +# CONFIG_9P_FS is not set + +# +# Partition Types +# +# CONFIG_PARTITION_ADVANCED is not set +CONFIG_MSDOS_PARTITION=y + +# +# Native Language Support +# +# CONFIG_NLS is not set + +# +# Profiling support +# +# CONFIG_PROFILING is not set + +# +# Kernel hacking +# +# CONFIG_PRINTK_TIME is not set +# CONFIG_MAGIC_SYSRQ is not set +# CONFIG_DEBUG_KERNEL is not set +CONFIG_LOG_BUF_SHIFT=14 +# CONFIG_UNWIND_INFO is not set +CONFIG_SH_STANDARD_BIOS=y +CONFIG_EARLY_PRINTK=y +# CONFIG_KGDB is not set + +# +# Security options +# +# CONFIG_KEYS is not set + +# +# Cryptographic options +# +# CONFIG_CRYPTO is not set + +# +# Hardware crypto devices +# + +# +# Library routines +# +# CONFIG_CRC_CCITT is not set +# CONFIG_CRC16 is not set +CONFIG_CRC32=y +# CONFIG_LIBCRC32C is not set +CONFIG_ZLIB_INFLATE=y diff --git a/arch/sh/tools/mach-types b/arch/sh/tools/mach-types index 1f7f2c255ca2..ffd218083876 100644 --- a/arch/sh/tools/mach-types +++ b/arch/sh/tools/mach-types @@ -29,3 +29,4 @@ LANDISK SH_LANDISK R7780RP SH_R7780RP R7780MP SH_R7780MP TITAN SH_TITAN +SHMIN SH_SHMIN diff --git a/include/asm-sh/shmin/shmin.h b/include/asm-sh/shmin/shmin.h new file mode 100644 index 000000000000..36ba138a81fb --- /dev/null +++ b/include/asm-sh/shmin/shmin.h @@ -0,0 +1,9 @@ +#ifndef __ASM_SH_SHMIN_H +#define __ASM_SH_SHMIN_H + +#define SHMIN_IO_BASE 0xb0000000UL + +#define SHMIN_NE_IRQ IRQ2_IRQ +#define SHMIN_NE_BASE 0x300 + +#endif -- cgit v1.2.3 From 91550f715b7f7707b5ab5b9b0cd455bda8505954 Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Wed, 27 Sep 2006 17:45:01 +0900 Subject: sh: Kill off the rest of the legacy rtc mess. With the new RTC class driver, we can get rid of most of the old left over cruft. Signed-off-by: Paul Mundt --- arch/sh/Kconfig | 13 ---- arch/sh/boards/snapgear/rtc.c | 27 +------ arch/sh/kernel/cpu/Makefile | 1 - arch/sh/kernel/cpu/irq/ipr.c | 2 +- arch/sh/kernel/cpu/rtc.c | 128 -------------------------------- arch/sh/kernel/time.c | 41 +++++----- drivers/char/Kconfig | 2 +- include/asm-sh/mc146818rtc.h | 169 ------------------------------------------ include/asm-sh/rtc.h | 21 ------ 9 files changed, 23 insertions(+), 381 deletions(-) delete mode 100644 arch/sh/kernel/cpu/rtc.c (limited to 'include') diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig index 5bec3af164e5..c7e3596dcde1 100644 --- a/arch/sh/Kconfig +++ b/arch/sh/Kconfig @@ -296,19 +296,6 @@ config CPU_LITTLE_ENDIAN endian byte order. These modes require different kernels. Say Y if your machine is little endian, N if it's a big endian machine. -# The SH7750 RTC module is disabled in the Dreamcast -config SH_RTC - bool - depends on !SH_DREAMCAST && !SH_SATURN && !SH_7300_SOLUTION_ENGINE && \ - !SH_73180_SOLUTION_ENGINE && !SH_LANDISK && \ - !SH_R7780RP && !SH_SHMIN - default y - help - Selecting this option will allow the Linux kernel to emulate - PC's RTC. - - If unsure, say N. - config SH_FPU bool "FPU support" depends on !CPU_SH3 diff --git a/arch/sh/boards/snapgear/rtc.c b/arch/sh/boards/snapgear/rtc.c index 722479deb55a..1659fdd6695a 100644 --- a/arch/sh/boards/snapgear/rtc.c +++ b/arch/sh/boards/snapgear/rtc.c @@ -19,9 +19,7 @@ #include #include -/****************************************************************************/ - -static int use_ds1302 = 0; +static int use_ds1302; /****************************************************************************/ /* @@ -79,10 +77,6 @@ static unsigned int ds1302_readbyte(unsigned int addr) unsigned int val; unsigned long flags; -#if 0 - printk("SnapGear RTC: ds1302_readbyte(addr=%x)\n", addr); -#endif - local_irq_save(flags); set_dirp(get_dirp() | RTC_RESET | RTC_IODATA | RTC_SCLK); set_dp(get_dp() & ~(RTC_RESET | RTC_IODATA | RTC_SCLK)); @@ -101,10 +95,6 @@ static void ds1302_writebyte(unsigned int addr, unsigned int val) { unsigned long flags; -#if 0 - printk("SnapGear RTC: ds1302_writebyte(addr=%x)\n", addr); -#endif - local_irq_save(flags); set_dirp(get_dirp() | RTC_RESET | RTC_IODATA | RTC_SCLK); set_dp(get_dp() & ~(RTC_RESET | RTC_IODATA | RTC_SCLK)); @@ -167,9 +157,6 @@ void __init secureedge5410_rtc_init(void) if (use_ds1302) { rtc_sh_get_time = snapgear_rtc_gettimeofday; rtc_sh_set_time = snapgear_rtc_settimeofday; - } else { - rtc_sh_get_time = sh_rtc_gettimeofday; - rtc_sh_set_time = sh_rtc_settimeofday; } printk("SnapGear RTC: using %s rtc.\n", use_ds1302 ? "ds1302" : "internal"); @@ -184,10 +171,8 @@ void snapgear_rtc_gettimeofday(struct timespec *ts) { unsigned int sec, min, hr, day, mon, yr; - if (!use_ds1302) { - sh_rtc_gettimeofday(ts); + if (!use_ds1302) return; - } sec = bcd2int(ds1302_readbyte(RTC_ADDR_SEC)); min = bcd2int(ds1302_readbyte(RTC_ADDR_MIN)); @@ -228,7 +213,7 @@ int snapgear_rtc_settimeofday(const time_t secs) unsigned long nowtime; if (!use_ds1302) - return sh_rtc_settimeofday(secs); + return 0; /* * This is called direct from the kernel timer handling code. @@ -237,10 +222,6 @@ int snapgear_rtc_settimeofday(const time_t secs) nowtime = secs; -#if 1 - printk("SnapGear RTC: snapgear_rtc_settimeofday(nowtime=%ld)\n", nowtime); -#endif - /* STOP RTC */ ds1302_writebyte(RTC_ADDR_SEC, ds1302_readbyte(RTC_ADDR_SEC) | 0x80); @@ -326,5 +307,3 @@ void secureedge5410_cmos_write(unsigned char val, int addr) default: break; } } - -/****************************************************************************/ diff --git a/arch/sh/kernel/cpu/Makefile b/arch/sh/kernel/cpu/Makefile index 59d5b748752f..fb5dac069382 100644 --- a/arch/sh/kernel/cpu/Makefile +++ b/arch/sh/kernel/cpu/Makefile @@ -8,6 +8,5 @@ obj-$(CONFIG_CPU_SH2) += sh2/ obj-$(CONFIG_CPU_SH3) += sh3/ obj-$(CONFIG_CPU_SH4) += sh4/ -obj-$(CONFIG_SH_RTC) += rtc.o obj-$(CONFIG_UBC_WAKEUP) += ubc.o obj-$(CONFIG_SH_ADC) += adc.o diff --git a/arch/sh/kernel/cpu/irq/ipr.c b/arch/sh/kernel/cpu/irq/ipr.c index d2b715a04c7e..00edee971bcb 100644 --- a/arch/sh/kernel/cpu/irq/ipr.c +++ b/arch/sh/kernel/cpu/irq/ipr.c @@ -124,7 +124,7 @@ void __init init_IRQ(void) #ifndef CONFIG_CPU_SUBTYPE_SH7780 make_ipr_irq(TIMER_IRQ, TIMER_IPR_ADDR, TIMER_IPR_POS, TIMER_PRIORITY); make_ipr_irq(TIMER1_IRQ, TIMER1_IPR_ADDR, TIMER1_IPR_POS, TIMER1_PRIORITY); -#if defined(CONFIG_SH_RTC) +#ifdef RTC_IRQ make_ipr_irq(RTC_IRQ, RTC_IPR_ADDR, RTC_IPR_POS, RTC_PRIORITY); #endif diff --git a/arch/sh/kernel/cpu/rtc.c b/arch/sh/kernel/cpu/rtc.c deleted file mode 100644 index 4304cf75cfa2..000000000000 --- a/arch/sh/kernel/cpu/rtc.c +++ /dev/null @@ -1,128 +0,0 @@ -/* - * linux/arch/sh/kernel/rtc.c -- SH3 / SH4 on-chip RTC support - * - * Copyright (C) 2000 Philipp Rumpf - * Copyright (C) 1999 Tetsuya Okada & Niibe Yutaka - */ - -#include -#include -#include -#include -#include -#include -#include - -void sh_rtc_gettimeofday(struct timespec *ts) -{ - unsigned int sec128, sec, sec2, min, hr, wk, day, mon, yr, yr100, cf_bit; - unsigned long flags; - - again: - do { - local_irq_save(flags); - ctrl_outb(0, RCR1); /* Clear CF-bit */ - sec128 = ctrl_inb(R64CNT); - sec = ctrl_inb(RSECCNT); - min = ctrl_inb(RMINCNT); - hr = ctrl_inb(RHRCNT); - wk = ctrl_inb(RWKCNT); - day = ctrl_inb(RDAYCNT); - mon = ctrl_inb(RMONCNT); -#if defined(CONFIG_CPU_SH4) - yr = ctrl_inw(RYRCNT); - yr100 = (yr >> 8); - yr &= 0xff; -#else - yr = ctrl_inb(RYRCNT); - yr100 = (yr == 0x99) ? 0x19 : 0x20; -#endif - sec2 = ctrl_inb(R64CNT); - cf_bit = ctrl_inb(RCR1) & RCR1_CF; - local_irq_restore(flags); - } while (cf_bit != 0 || ((sec128 ^ sec2) & RTC_BIT_INVERTED) != 0); - - BCD_TO_BIN(yr100); - BCD_TO_BIN(yr); - BCD_TO_BIN(mon); - BCD_TO_BIN(day); - BCD_TO_BIN(hr); - BCD_TO_BIN(min); - BCD_TO_BIN(sec); - - if (yr > 99 || mon < 1 || mon > 12 || day > 31 || day < 1 || - hr > 23 || min > 59 || sec > 59) { - printk(KERN_ERR - "SH RTC: invalid value, resetting to 1 Jan 2000\n"); - local_irq_save(flags); - ctrl_outb(RCR2_RESET, RCR2); /* Reset & Stop */ - ctrl_outb(0, RSECCNT); - ctrl_outb(0, RMINCNT); - ctrl_outb(0, RHRCNT); - ctrl_outb(6, RWKCNT); - ctrl_outb(1, RDAYCNT); - ctrl_outb(1, RMONCNT); -#if defined(CONFIG_CPU_SH4) - ctrl_outw(0x2000, RYRCNT); -#else - ctrl_outb(0, RYRCNT); -#endif - ctrl_outb(RCR2_RTCEN|RCR2_START, RCR2); /* Start */ - goto again; - } - -#if RTC_BIT_INVERTED != 0 - if ((sec128 & RTC_BIT_INVERTED)) - sec--; -#endif - - ts->tv_sec = mktime(yr100 * 100 + yr, mon, day, hr, min, sec); - ts->tv_nsec = ((sec128 * 1000000) / 128) * 1000; -} - -/* - * Changed to only care about tv_sec, and not the full timespec struct - * (i.e. tv_nsec). It can easily be switched to timespec for future cpus - * that support setting usec or nsec RTC values. - */ -int sh_rtc_settimeofday(const time_t secs) -{ - int retval = 0; - int real_seconds, real_minutes, cmos_minutes; - unsigned long flags; - - local_irq_save(flags); - ctrl_outb(RCR2_RESET, RCR2); /* Reset pre-scaler & stop RTC */ - - cmos_minutes = ctrl_inb(RMINCNT); - BCD_TO_BIN(cmos_minutes); - - /* - * since we're only adjusting minutes and seconds, - * don't interfere with hour overflow. This avoids - * messing with unknown time zones but requires your - * RTC not to be off by more than 15 minutes - */ - real_seconds = secs % 60; - real_minutes = secs / 60; - if (((abs(real_minutes - cmos_minutes) + 15)/30) & 1) - real_minutes += 30; /* correct for half hour time zone */ - real_minutes %= 60; - - if (abs(real_minutes - cmos_minutes) < 30) { - BIN_TO_BCD(real_seconds); - BIN_TO_BCD(real_minutes); - ctrl_outb(real_seconds, RSECCNT); - ctrl_outb(real_minutes, RMINCNT); - } else { - printk(KERN_WARNING - "set_rtc_time: can't update from %d to %d\n", - cmos_minutes, real_minutes); - retval = -1; - } - - ctrl_outb(RCR2_RTCEN|RCR2_START, RCR2); /* Start RTC */ - local_irq_restore(flags); - - return retval; -} diff --git a/arch/sh/kernel/time.c b/arch/sh/kernel/time.c index 8acd70bffe76..149d9713eddf 100644 --- a/arch/sh/kernel/time.c +++ b/arch/sh/kernel/time.c @@ -3,13 +3,12 @@ * * Copyright (C) 1999 Tetsuya Okada & Niibe Yutaka * Copyright (C) 2000 Philipp Rumpf - * Copyright (C) 2002, 2003, 2004, 2005 Paul Mundt + * Copyright (C) 2002 - 2006 Paul Mundt * Copyright (C) 2002 M. R. Brown * * Some code taken from i386 version. * Copyright (C) 1991, 1992, 1995 Linus Torvalds */ - #include #include #include @@ -26,15 +25,20 @@ struct sys_timer *sys_timer; DEFINE_SPINLOCK(rtc_lock); EXPORT_SYMBOL(rtc_lock); -/* XXX: Can we initialize this in a routine somewhere? Dreamcast doesn't want - * these routines anywhere... */ -#ifdef CONFIG_SH_RTC -void (*rtc_sh_get_time)(struct timespec *) = sh_rtc_gettimeofday; -int (*rtc_sh_set_time)(const time_t) = sh_rtc_settimeofday; -#else -void (*rtc_sh_get_time)(struct timespec *); -int (*rtc_sh_set_time)(const time_t); -#endif +/* Dummy RTC ops */ +static void null_rtc_get_time(struct timespec *tv) +{ + tv->tv_sec = mktime(2000, 1, 1, 0, 0, 0); + tv->tv_nsec = 0; +} + +static int null_rtc_set_time(const time_t secs) +{ + return 0; +} + +void (*rtc_sh_get_time)(struct timespec *) = null_rtc_get_time; +int (*rtc_sh_set_time)(const time_t) = null_rtc_set_time; /* * Scheduler clock - returns current time in nanosec units. @@ -70,7 +74,6 @@ void do_gettimeofday(struct timeval *tv) tv->tv_sec = sec; tv->tv_usec = usec; } - EXPORT_SYMBOL(do_gettimeofday); int do_settimeofday(struct timespec *tv) @@ -103,7 +106,6 @@ int do_settimeofday(struct timespec *tv) return 0; } - EXPORT_SYMBOL(do_settimeofday); /* last time the RTC clock got updated */ @@ -181,7 +183,6 @@ static int __init timer_init_sysfs(void) sys_timer->dev.cls = &timer_sysclass; return sysdev_register(&sys_timer->dev); } - device_initcall(timer_init_sysfs); void (*board_time_init)(void); @@ -193,15 +194,9 @@ void __init time_init(void) clk_init(); - if (rtc_sh_get_time) { - rtc_sh_get_time(&xtime); - } else { - xtime.tv_sec = mktime(2000, 1, 1, 0, 0, 0); - xtime.tv_nsec = 0; - } - - set_normalized_timespec(&wall_to_monotonic, - -xtime.tv_sec, -xtime.tv_nsec); + rtc_sh_get_time(&xtime); + set_normalized_timespec(&wall_to_monotonic, + -xtime.tv_sec, -xtime.tv_nsec); /* * Find the timer to use as the system timer, it will be diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig index 52ea94b891f5..7f0d323b4725 100644 --- a/drivers/char/Kconfig +++ b/drivers/char/Kconfig @@ -739,7 +739,7 @@ config NVRAM config RTC tristate "Enhanced Real Time Clock Support" - depends on !PPC && !PARISC && !IA64 && !M68K && (!SPARC || PCI) && !FRV && !ARM + depends on !PPC && !PARISC && !IA64 && !M68K && (!SPARC || PCI) && !FRV && !ARM && !SUPERH ---help--- If you say Y here and create a character special file /dev/rtc with major number 10 and minor number 135 using mknod ("man mknod"), you diff --git a/include/asm-sh/mc146818rtc.h b/include/asm-sh/mc146818rtc.h index adc6e67c6b75..0aee96a97330 100644 --- a/include/asm-sh/mc146818rtc.h +++ b/include/asm-sh/mc146818rtc.h @@ -4,173 +4,4 @@ #ifndef _ASM_MC146818RTC_H #define _ASM_MC146818RTC_H -#ifdef CONFIG_SH_MPC1211 -#undef _ASM_MC146818RTC_H -#undef RTC_IRQ -#include -#else - -#include - -#define RTC_ALWAYS_BCD 1 - -/* FIXME:RTC Interrupt feature is not implemented yet. */ -#undef RTC_IRQ -#define RTC_IRQ 0 - -#if defined(CONFIG_CPU_SH3) -#define RTC_PORT(n) (R64CNT+(n)*2) -#define CMOS_READ(addr) __CMOS_READ(addr,b) -#define CMOS_WRITE(val,addr) __CMOS_WRITE(val,addr,b) - -#elif defined(CONFIG_SH_SECUREEDGE5410) -#include - -#define RTC_PORT(n) SECUREEDGE_IOPORT_ADDR -#define CMOS_READ(addr) secureedge5410_cmos_read(addr) -#define CMOS_WRITE(val,addr) secureedge5410_cmos_write(val,addr) -extern unsigned char secureedge5410_cmos_read(int addr); -extern void secureedge5410_cmos_write(unsigned char val, int addr); - -#elif defined(CONFIG_CPU_SH4) -#define RTC_PORT(n) (R64CNT+(n)*4) -#define CMOS_READ(addr) __CMOS_READ(addr,w) -#define CMOS_WRITE(val,addr) __CMOS_WRITE(val,addr,w) -#endif - -#define __CMOS_READ(addr, s) ({ \ - unsigned char val=0, rcr1, rcr2, r64cnt, retry; \ - switch(addr) { \ - case RTC_SECONDS: \ - val = ctrl_inb(RSECCNT); \ - break; \ - case RTC_SECONDS_ALARM: \ - val = ctrl_inb(RSECAR); \ - break; \ - case RTC_MINUTES: \ - val = ctrl_inb(RMINCNT); \ - break; \ - case RTC_MINUTES_ALARM: \ - val = ctrl_inb(RMINAR); \ - break; \ - case RTC_HOURS: \ - val = ctrl_inb(RHRCNT); \ - break; \ - case RTC_HOURS_ALARM: \ - val = ctrl_inb(RHRAR); \ - break; \ - case RTC_DAY_OF_WEEK: \ - val = ctrl_inb(RWKCNT); \ - break; \ - case RTC_DAY_OF_MONTH: \ - val = ctrl_inb(RDAYCNT); \ - break; \ - case RTC_MONTH: \ - val = ctrl_inb(RMONCNT); \ - break; \ - case RTC_YEAR: \ - val = ctrl_in##s(RYRCNT); \ - break; \ - case RTC_REG_A: /* RTC_FREQ_SELECT */ \ - rcr2 = ctrl_inb(RCR2); \ - val = (rcr2 & RCR2_PESMASK) >> 4; \ - rcr1 = ctrl_inb(RCR1); \ - rcr1 = (rcr1 & (RCR1_CIE | RCR1_AIE)) | RCR1_AF;\ - retry = 0; \ - do { \ - ctrl_outb(rcr1, RCR1); /* clear CF */ \ - r64cnt = ctrl_inb(R64CNT); \ - } while((ctrl_inb(RCR1) & RCR1_CF) && retry++ < 1000);\ - r64cnt ^= RTC_BIT_INVERTED; \ - if(r64cnt == 0x7f || r64cnt == 0) \ - val |= RTC_UIP; \ - break; \ - case RTC_REG_B: /* RTC_CONTROL */ \ - rcr1 = ctrl_inb(RCR1); \ - rcr2 = ctrl_inb(RCR2); \ - if(rcr1 & RCR1_CIE) val |= RTC_UIE; \ - if(rcr1 & RCR1_AIE) val |= RTC_AIE; \ - if(rcr2 & RCR2_PESMASK) val |= RTC_PIE; \ - if(!(rcr2 & RCR2_START))val |= RTC_SET; \ - val |= RTC_24H; \ - break; \ - case RTC_REG_C: /* RTC_INTR_FLAGS */ \ - rcr1 = ctrl_inb(RCR1); \ - rcr1 &= ~(RCR1_CF | RCR1_AF); \ - ctrl_outb(rcr1, RCR1); \ - rcr2 = ctrl_inb(RCR2); \ - rcr2 &= ~RCR2_PEF; \ - ctrl_outb(rcr2, RCR2); \ - break; \ - case RTC_REG_D: /* RTC_VALID */ \ - /* Always valid ... */ \ - val = RTC_VRT; \ - break; \ - default: \ - break; \ - } \ - val; \ -}) - -#define __CMOS_WRITE(val, addr, s) ({ \ - unsigned char rcr1,rcr2; \ - switch(addr) { \ - case RTC_SECONDS: \ - ctrl_outb(val, RSECCNT); \ - break; \ - case RTC_SECONDS_ALARM: \ - ctrl_outb(val, RSECAR); \ - break; \ - case RTC_MINUTES: \ - ctrl_outb(val, RMINCNT); \ - break; \ - case RTC_MINUTES_ALARM: \ - ctrl_outb(val, RMINAR); \ - break; \ - case RTC_HOURS: \ - ctrl_outb(val, RHRCNT); \ - break; \ - case RTC_HOURS_ALARM: \ - ctrl_outb(val, RHRAR); \ - break; \ - case RTC_DAY_OF_WEEK: \ - ctrl_outb(val, RWKCNT); \ - break; \ - case RTC_DAY_OF_MONTH: \ - ctrl_outb(val, RDAYCNT); \ - break; \ - case RTC_MONTH: \ - ctrl_outb(val, RMONCNT); \ - break; \ - case RTC_YEAR: \ - ctrl_out##s((ctrl_in##s(RYRCNT) & 0xff00) | (val & 0xff), RYRCNT);\ - break; \ - case RTC_REG_A: /* RTC_FREQ_SELECT */ \ - rcr2 = ctrl_inb(RCR2); \ - if((val & RTC_DIV_CTL) == RTC_DIV_RESET2) \ - rcr2 |= RCR2_RESET; \ - ctrl_outb(rcr2, RCR2); \ - break; \ - case RTC_REG_B: /* RTC_CONTROL */ \ - rcr1 = (ctrl_inb(RCR1) & 0x99) | RCR1_AF; \ - if(val & RTC_AIE) rcr1 |= RCR1_AIE; \ - else rcr1 &= ~RCR1_AIE; \ - if(val & RTC_UIE) rcr1 |= RCR1_CIE; \ - else rcr1 &= ~RCR1_CIE; \ - ctrl_outb(rcr1, RCR1); \ - rcr2 = ctrl_inb(RCR2); \ - if(val & RTC_SET) rcr2 &= ~RCR2_START; \ - else rcr2 |= RCR2_START; \ - ctrl_outb(rcr2, RCR2); \ - break; \ - case RTC_REG_C: /* RTC_INTR_FLAGS */ \ - break; \ - case RTC_REG_D: /* RTC_VALID */ \ - break; \ - default: \ - break; \ - } \ -}) - -#endif /* CONFIG_SH_MPC1211 */ #endif /* _ASM_MC146818RTC_H */ diff --git a/include/asm-sh/rtc.h b/include/asm-sh/rtc.h index 4c7be859c9c0..91aacc96151b 100644 --- a/include/asm-sh/rtc.h +++ b/include/asm-sh/rtc.h @@ -1,29 +1,8 @@ #ifndef _ASM_RTC_H #define _ASM_RTC_H -#ifdef __KERNEL__ -#include -#include - -extern void sh_rtc_gettimeofday(struct timespec *ts); -extern int sh_rtc_settimeofday(const time_t secs); extern void (*board_time_init)(void); extern void (*rtc_sh_get_time)(struct timespec *); extern int (*rtc_sh_set_time)(const time_t); -/* RCR1 Bits */ -#define RCR1_CF 0x80 /* Carry Flag */ -#define RCR1_CIE 0x10 /* Carry Interrupt Enable */ -#define RCR1_AIE 0x08 /* Alarm Interrupt Enable */ -#define RCR1_AF 0x01 /* Alarm Flag */ - -/* RCR2 Bits */ -#define RCR2_PEF 0x80 /* PEriodic interrupt Flag */ -#define RCR2_PESMASK 0x70 /* Periodic interrupt Set */ -#define RCR2_RTCEN 0x08 /* ENable RTC */ -#define RCR2_ADJ 0x04 /* ADJustment (30-second) */ -#define RCR2_RESET 0x02 /* Reset bit */ -#define RCR2_START 0x01 /* Start bit */ - -#endif /* __KERNEL__ */ #endif /* _ASM_RTC_H */ -- cgit v1.2.3 From 781125ca58dfbd47635cfc0e408f1f9d7e10b227 Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Wed, 27 Sep 2006 17:52:19 +0900 Subject: sh: New atomic ops for SH-4A movli.l/movco.l SH-4A implements LL/SC instructions, so we implement a simple set of atomic operations using these. Signed-off-by: Paul Mundt --- include/asm-sh/atomic.h | 105 +++++++++++++++++++++++++++++++++++++++++++----- 1 file changed, 96 insertions(+), 9 deletions(-) (limited to 'include') diff --git a/include/asm-sh/atomic.h b/include/asm-sh/atomic.h index 049eb2dda6b6..8bdc1ba56f73 100644 --- a/include/asm-sh/atomic.h +++ b/include/asm-sh/atomic.h @@ -22,49 +22,110 @@ typedef struct { volatile int counter; } atomic_t; * forward to code at the end of this object's .text section, then * branch back to restart the operation. */ - -static __inline__ void atomic_add(int i, atomic_t * v) +static inline void atomic_add(int i, atomic_t *v) { +#ifdef CONFIG_CPU_SH4A + unsigned long tmp; + + __asm__ __volatile__ ( +"1: movli.l @%3, %0 ! atomic_add \n" +" add %2, %0 \n" +" movco.l %0, @%3 \n" +" bf 1b \n" + : "=&z" (tmp), "=r" (&v->counter) + : "r" (i), "r" (&v->counter) + : "t"); +#else unsigned long flags; local_irq_save(flags); *(long *)v += i; local_irq_restore(flags); +#endif } -static __inline__ void atomic_sub(int i, atomic_t *v) +static inline void atomic_sub(int i, atomic_t *v) { +#ifdef CONFIG_CPU_SH4A + unsigned long tmp; + + __asm__ __volatile__ ( +"1: movli.l @%3, %0 ! atomic_sub \n" +" sub %2, %0 \n" +" movco.l %0, @%3 \n" +" bf 1b \n" + : "=&z" (tmp), "=r" (&v->counter) + : "r" (i), "r" (&v->counter) + : "t"); +#else unsigned long flags; local_irq_save(flags); *(long *)v -= i; local_irq_restore(flags); +#endif } -static __inline__ int atomic_add_return(int i, atomic_t * v) +/* + * SH-4A note: + * + * We basically get atomic_xxx_return() for free compared with + * atomic_xxx(). movli.l/movco.l require r0 due to the instruction + * encoding, so the retval is automatically set without having to + * do any special work. + */ +static inline int atomic_add_return(int i, atomic_t *v) { - unsigned long temp, flags; + unsigned long temp; + +#ifdef CONFIG_CPU_SH4A + __asm__ __volatile__ ( +"1: movli.l @%3, %0 ! atomic_add_return \n" +" add %2, %0 \n" +" movco.l %0, @%3 \n" +" bf 1b \n" +" synco \n" + : "=&z" (temp), "=r" (&v->counter) + : "r" (i), "r" (&v->counter) + : "t"); +#else + unsigned long flags; local_irq_save(flags); temp = *(long *)v; temp += i; *(long *)v = temp; local_irq_restore(flags); +#endif return temp; } #define atomic_add_negative(a, v) (atomic_add_return((a), (v)) < 0) -static __inline__ int atomic_sub_return(int i, atomic_t * v) +static inline int atomic_sub_return(int i, atomic_t *v) { - unsigned long temp, flags; + unsigned long temp; + +#ifdef CONFIG_CPU_SH4A + __asm__ __volatile__ ( +"1: movli.l @%3, %0 ! atomic_sub_return \n" +" sub %2, %0 \n" +" movco.l %0, @%3 \n" +" bf 1b \n" +" synco \n" + : "=&z" (temp), "=r" (&v->counter) + : "r" (i), "r" (&v->counter) + : "t"); +#else + unsigned long flags; local_irq_save(flags); temp = *(long *)v; temp -= i; *(long *)v = temp; local_irq_restore(flags); +#endif return temp; } @@ -119,22 +180,48 @@ static inline int atomic_add_unless(atomic_t *v, int a, int u) } #define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0) -static __inline__ void atomic_clear_mask(unsigned int mask, atomic_t *v) +static inline void atomic_clear_mask(unsigned int mask, atomic_t *v) { +#ifdef CONFIG_CPU_SH4A + unsigned long tmp; + + __asm__ __volatile__ ( +"1: movli.l @%3, %0 ! atomic_clear_mask \n" +" and %2, %0 \n" +" movco.l %0, @%3 \n" +" bf 1b \n" + : "=&z" (tmp), "=r" (&v->counter) + : "r" (~mask), "r" (&v->counter) + : "t"); +#else unsigned long flags; local_irq_save(flags); *(long *)v &= ~mask; local_irq_restore(flags); +#endif } -static __inline__ void atomic_set_mask(unsigned int mask, atomic_t *v) +static inline void atomic_set_mask(unsigned int mask, atomic_t *v) { +#ifdef CONFIG_CPU_SH4A + unsigned long tmp; + + __asm__ __volatile__ ( +"1: movli.l @%3, %0 ! atomic_set_mask \n" +" or %2, %0 \n" +" movco.l %0, @%3 \n" +" bf 1b \n" + : "=&z" (tmp), "=r" (&v->counter) + : "r" (mask), "r" (&v->counter) + : "t"); +#else unsigned long flags; local_irq_save(flags); *(long *)v |= mask; local_irq_restore(flags); +#endif } /* Atomic operations are already serializing on SH */ -- cgit v1.2.3 From 5a4053b23262afefa748e1e4c439931d4c27693b Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Wed, 27 Sep 2006 18:00:19 +0900 Subject: sh: Kill off dead boards. None of these have been maintained in years, and no one seems to be interested in doing so, so just get rid of them. Signed-off-by: Paul Mundt --- arch/sh/Kconfig | 43 +-- arch/sh/Makefile | 7 - arch/sh/boards/adx/Makefile | 6 - arch/sh/boards/adx/irq.c | 31 -- arch/sh/boards/adx/irq_maskreg.c | 106 ------- arch/sh/boards/adx/setup.c | 56 ---- arch/sh/boards/cat68701/Makefile | 6 - arch/sh/boards/cat68701/irq.c | 28 -- arch/sh/boards/cat68701/setup.c | 85 ----- arch/sh/boards/cqreek/Makefile | 6 - arch/sh/boards/cqreek/irq.c | 128 -------- arch/sh/boards/cqreek/setup.c | 100 ------ arch/sh/boards/dmida/Makefile | 7 - arch/sh/boards/dmida/mach.c | 59 ---- arch/sh/boards/harp/Makefile | 8 - arch/sh/boards/harp/irq.c | 147 --------- arch/sh/boards/harp/led.c | 51 --- arch/sh/boards/harp/mach.c | 62 ---- arch/sh/boards/harp/pcidma.c | 42 --- arch/sh/boards/harp/setup.c | 90 ------ arch/sh/boards/overdrive/Makefile | 8 - arch/sh/boards/overdrive/fpga.c | 133 -------- arch/sh/boards/overdrive/galileo.c | 587 ----------------------------------- arch/sh/boards/overdrive/io.c | 172 ---------- arch/sh/boards/overdrive/irq.c | 191 ------------ arch/sh/boards/overdrive/led.c | 58 ---- arch/sh/boards/overdrive/mach.c | 62 ---- arch/sh/boards/overdrive/pcidma.c | 46 --- arch/sh/boards/overdrive/setup.c | 36 --- arch/sh/boards/sh2000/Makefile | 6 - arch/sh/boards/sh2000/setup.c | 70 ----- arch/sh/tools/mach-types | 2 - include/asm-sh/adx/io.h | 86 ----- include/asm-sh/cat68701/io.h | 22 -- include/asm-sh/cqreek/cqreek.h | 27 -- include/asm-sh/dmida/io.h | 10 - include/asm-sh/harp/harp.h | 43 --- include/asm-sh/harp/io.h | 10 - include/asm-sh/overdrive/fpga.h | 15 - include/asm-sh/overdrive/gt64111.h | 109 ------- include/asm-sh/overdrive/io.h | 39 --- include/asm-sh/overdrive/overdrive.h | 88 ------ include/asm-sh/sh2000/sh2000.h | 8 - 43 files changed, 4 insertions(+), 2892 deletions(-) delete mode 100644 arch/sh/boards/adx/Makefile delete mode 100644 arch/sh/boards/adx/irq.c delete mode 100644 arch/sh/boards/adx/irq_maskreg.c delete mode 100644 arch/sh/boards/adx/setup.c delete mode 100644 arch/sh/boards/cat68701/Makefile delete mode 100644 arch/sh/boards/cat68701/irq.c delete mode 100644 arch/sh/boards/cat68701/setup.c delete mode 100644 arch/sh/boards/cqreek/Makefile delete mode 100644 arch/sh/boards/cqreek/irq.c delete mode 100644 arch/sh/boards/cqreek/setup.c delete mode 100644 arch/sh/boards/dmida/Makefile delete mode 100644 arch/sh/boards/dmida/mach.c delete mode 100644 arch/sh/boards/harp/Makefile delete mode 100644 arch/sh/boards/harp/irq.c delete mode 100644 arch/sh/boards/harp/led.c delete mode 100644 arch/sh/boards/harp/mach.c delete mode 100644 arch/sh/boards/harp/pcidma.c delete mode 100644 arch/sh/boards/harp/setup.c delete mode 100644 arch/sh/boards/overdrive/Makefile delete mode 100644 arch/sh/boards/overdrive/fpga.c delete mode 100644 arch/sh/boards/overdrive/galileo.c delete mode 100644 arch/sh/boards/overdrive/io.c delete mode 100644 arch/sh/boards/overdrive/irq.c delete mode 100644 arch/sh/boards/overdrive/led.c delete mode 100644 arch/sh/boards/overdrive/mach.c delete mode 100644 arch/sh/boards/overdrive/pcidma.c delete mode 100644 arch/sh/boards/overdrive/setup.c delete mode 100644 arch/sh/boards/sh2000/Makefile delete mode 100644 arch/sh/boards/sh2000/setup.c delete mode 100644 include/asm-sh/adx/io.h delete mode 100644 include/asm-sh/cat68701/io.h delete mode 100644 include/asm-sh/cqreek/cqreek.h delete mode 100644 include/asm-sh/dmida/io.h delete mode 100644 include/asm-sh/harp/harp.h delete mode 100644 include/asm-sh/harp/io.h delete mode 100644 include/asm-sh/overdrive/fpga.h delete mode 100644 include/asm-sh/overdrive/gt64111.h delete mode 100644 include/asm-sh/overdrive/io.h delete mode 100644 include/asm-sh/overdrive/overdrive.h delete mode 100644 include/asm-sh/sh2000/sh2000.h (limited to 'include') diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig index c7e3596dcde1..ddf2cc56868c 100644 --- a/arch/sh/Kconfig +++ b/arch/sh/Kconfig @@ -89,12 +89,6 @@ config SH_7751_SYSTEMH Select SystemH if you are configuring for a Renesas SystemH 7751R evaluation board. -config SH_STB1_HARP - bool "STB1_Harp" - -config SH_STB1_OVERDRIVE - bool "STB1_Overdrive" - config SH_HP6XX bool "HP6XX" help @@ -102,19 +96,6 @@ config SH_HP6XX More information (hardware only) at . -config SH_CQREEK - bool "CqREEK" - help - Select CqREEK if configuring for a CqREEK SH7708 or SH7750. - More information at - . - -config SH_DMIDA - bool "DMIDA" - help - Select DMIDA if configuring for a DataMyte 4000 Industrial - Digital Assistant. More information at . - config SH_EC3104 bool "EC3104" help @@ -136,25 +117,9 @@ config SH_DREAMCAST . There is a Dreamcast project is at . -config SH_CAT68701 - bool "CAT68701" - config SH_BIGSUR bool "BigSur" -config SH_SH2000 - bool "SH2000" - select CPU_SUBTYPE_SH7709 - help - SH-2000 is a single-board computer based around SH7709A chip - intended for embedded applications. - It has an Ethernet interface (CS8900A), direct connected - Compact Flash socket, three serial ports and PC-104 bus. - More information at . - -config SH_ADX - bool "ADX" - config SH_MPC1211 bool "Interface MPC1211" help @@ -246,7 +211,7 @@ source "arch/sh/mm/Kconfig" config CF_ENABLER bool "Compact Flash Enabler support" - depends on SH_ADX || SH_SOLUTION_ENGINE || SH_UNKNOWN || SH_CAT68701 || SH_SH03 + depends on SH_SOLUTION_ENGINE || SH_UNKNOWN || SH_SH03 ---help--- Compact Flash is a small, removable mass storage device introduced in 1994 originally as a PCMCIA device. If you say `Y' here, you @@ -274,7 +239,7 @@ config CF_AREA5 - "Area5" if CompactFlash is connected to Area 5 (0x14000000) - "Area6" if it is connected to Area 6 (0x18000000) - "Area6" will work for most boards. For ADX, select "Area5". + "Area6" will work for most boards. config CF_AREA6 bool "Area6" @@ -418,8 +383,8 @@ source "arch/sh/cchips/Kconfig" config HEARTBEAT bool "Heartbeat LED" - depends on SH_MPC1211 || SH_SH03 || SH_CAT68701 || \ - SH_STB1_HARP || SH_STB1_OVERDRIVE || SH_BIGSUR || \ + depends on SH_MPC1211 || SH_SH03 || \ + SH_BIGSUR || \ SH_7751_SOLUTION_ENGINE || SH_7300_SOLUTION_ENGINE || \ SH_73180_SOLUTION_ENGINE || SH_SOLUTION_ENGINE || \ SH_RTS7751R2D || SH_SH4202_MICRODEV || SH_LANDISK diff --git a/arch/sh/Makefile b/arch/sh/Makefile index 8ad0a286ff8f..d0168844c3c7 100644 --- a/arch/sh/Makefile +++ b/arch/sh/Makefile @@ -90,18 +90,11 @@ machdir-$(CONFIG_SH_SOLUTION_ENGINE) := se/770x machdir-$(CONFIG_SH_7751_SOLUTION_ENGINE) := se/7751 machdir-$(CONFIG_SH_7300_SOLUTION_ENGINE) := se/7300 machdir-$(CONFIG_SH_73180_SOLUTION_ENGINE) := se/73180 -machdir-$(CONFIG_SH_STB1_HARP) := harp -machdir-$(CONFIG_SH_STB1_OVERDRIVE) := overdrive machdir-$(CONFIG_SH_HP6XX) := hp6xx -machdir-$(CONFIG_SH_CQREEK) := cqreek -machdir-$(CONFIG_SH_DMIDA) := dmida machdir-$(CONFIG_SH_EC3104) := ec3104 machdir-$(CONFIG_SH_SATURN) := saturn machdir-$(CONFIG_SH_DREAMCAST) := dreamcast -machdir-$(CONFIG_SH_CAT68701) := cat68701 machdir-$(CONFIG_SH_BIGSUR) := bigsur -machdir-$(CONFIG_SH_SH2000) := sh2000 -machdir-$(CONFIG_SH_ADX) := adx machdir-$(CONFIG_SH_MPC1211) := mpc1211 machdir-$(CONFIG_SH_SH03) := sh03 machdir-$(CONFIG_SH_SECUREEDGE5410) := snapgear diff --git a/arch/sh/boards/adx/Makefile b/arch/sh/boards/adx/Makefile deleted file mode 100644 index 5b1c531b3991..000000000000 --- a/arch/sh/boards/adx/Makefile +++ /dev/null @@ -1,6 +0,0 @@ -# -# Makefile for ADX boards -# - -obj-y := setup.o irq.o irq_maskreq.o - diff --git a/arch/sh/boards/adx/irq.c b/arch/sh/boards/adx/irq.c deleted file mode 100644 index c6ca409dff98..000000000000 --- a/arch/sh/boards/adx/irq.c +++ /dev/null @@ -1,31 +0,0 @@ -/* - * linux/arch/sh/boards/adx/irq.c - * - * Copyright (C) 2001 A&D Co., Ltd. - * - * I/O routine and setup routines for A&D ADX Board - * - * 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 - -void init_adx_IRQ(void) -{ - int i; - -/* printk("init_adx_IRQ()\n");*/ - /* setup irq_mask_register */ - irq_mask_register = (unsigned short *)0xa6000008; - - /* cover all external interrupt area by maskreg_irq_type - * (Actually, irq15 doesn't exist) - */ - for (i = 0; i < 16; i++) { - make_maskreg_irq(i); - disable_irq(i); - } -} diff --git a/arch/sh/boards/adx/irq_maskreg.c b/arch/sh/boards/adx/irq_maskreg.c deleted file mode 100644 index 4b2abe5eb165..000000000000 --- a/arch/sh/boards/adx/irq_maskreg.c +++ /dev/null @@ -1,106 +0,0 @@ -/* - * linux/arch/sh/kernel/irq_maskreg.c - * - * Copyright (C) 2001 A&D Co., Ltd. - * - * This file may be copied or modified under the terms of the GNU - * General Public License. See linux/COPYING for more information. - * - * Interrupt handling for Simple external interrupt mask register - * - * This is for the machine which have single 16 bit register - * for masking external IRQ individually. - * Each bit of the register is for masking each interrupt. - */ - -#include -#include -#include - -#include -#include -#include - -/* address of external interrupt mask register - * address must be set prior to use these (maybe in init_XXX_irq()) - * XXX : is it better to use .config than specifying it in code? */ -unsigned short *irq_mask_register = 0; - -/* forward declaration */ -static unsigned int startup_maskreg_irq(unsigned int irq); -static void shutdown_maskreg_irq(unsigned int irq); -static void enable_maskreg_irq(unsigned int irq); -static void disable_maskreg_irq(unsigned int irq); -static void mask_and_ack_maskreg(unsigned int); -static void end_maskreg_irq(unsigned int irq); - -/* hw_interrupt_type */ -static struct hw_interrupt_type maskreg_irq_type = { - .typename = " Mask Register", - .startup = startup_maskreg_irq, - .shutdown = shutdown_maskreg_irq, - .enable = enable_maskreg_irq, - .disable = disable_maskreg_irq, - .ack = mask_and_ack_maskreg, - .end = end_maskreg_irq -}; - -/* actual implementatin */ -static unsigned int startup_maskreg_irq(unsigned int irq) -{ - enable_maskreg_irq(irq); - return 0; /* never anything pending */ -} - -static void shutdown_maskreg_irq(unsigned int irq) -{ - disable_maskreg_irq(irq); -} - -static void disable_maskreg_irq(unsigned int irq) -{ - if (irq_mask_register) { - unsigned long flags; - unsigned short val, mask = 0x01 << irq; - - /* Set "irq"th bit */ - local_irq_save(flags); - val = ctrl_inw((unsigned long)irq_mask_register); - val |= mask; - ctrl_outw(val, (unsigned long)irq_mask_register); - local_irq_restore(flags); - } -} - -static void enable_maskreg_irq(unsigned int irq) -{ - if (irq_mask_register) { - unsigned long flags; - unsigned short val, mask = ~(0x01 << irq); - - /* Clear "irq"th bit */ - local_irq_save(flags); - val = ctrl_inw((unsigned long)irq_mask_register); - val &= mask; - ctrl_outw(val, (unsigned long)irq_mask_register); - local_irq_restore(flags); - } -} - -static void mask_and_ack_maskreg(unsigned int irq) -{ - disable_maskreg_irq(irq); -} - -static void end_maskreg_irq(unsigned int irq) -{ - if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS))) - enable_maskreg_irq(irq); -} - -void make_maskreg_irq(unsigned int irq) -{ - disable_irq_nosync(irq); - irq_desc[irq].chip = &maskreg_irq_type; - disable_maskreg_irq(irq); -} diff --git a/arch/sh/boards/adx/setup.c b/arch/sh/boards/adx/setup.c deleted file mode 100644 index 4938d9592343..000000000000 --- a/arch/sh/boards/adx/setup.c +++ /dev/null @@ -1,56 +0,0 @@ -/* - * linux/arch/sh/board/adx/setup.c - * - * Copyright (C) 2001 A&D Co., Ltd. - * - * I/O routine and setup routines for A&D ADX Board - * - * 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 - -extern void init_adx_IRQ(void); -extern void *cf_io_base; - -const char *get_system_type(void) -{ - return "A&D ADX"; -} - -unsigned long adx_isa_port2addr(unsigned long offset) -{ - /* CompactFlash (IDE) */ - if (((offset >= 0x1f0) && (offset <= 0x1f7)) || (offset == 0x3f6)) { - return (unsigned long)cf_io_base + offset; - } - - /* eth0 */ - if ((offset >= 0x300) && (offset <= 0x30f)) { - return 0xa5000000 + offset; /* COMM BOARD (AREA1) */ - } - - return offset + 0xb0000000; /* IOBUS (AREA 4)*/ -} - -/* - * The Machine Vector - */ - -struct sh_machine_vector mv_adx __initmv = { - .mv_nr_irqs = 48, - .mv_isa_port2addr = adx_isa_port2addr, - .mv_init_irq = init_adx_IRQ, -}; -ALIAS_MV(adx) - -int __init platform_setup(void) -{ - /* Nothing to see here .. */ - return 0; -} - diff --git a/arch/sh/boards/cat68701/Makefile b/arch/sh/boards/cat68701/Makefile deleted file mode 100644 index 52c1de0a6dfd..000000000000 --- a/arch/sh/boards/cat68701/Makefile +++ /dev/null @@ -1,6 +0,0 @@ -# -# Makefile for the CAT-68701 specific parts of the kernel -# - -obj-y := setup.o irq.o - diff --git a/arch/sh/boards/cat68701/irq.c b/arch/sh/boards/cat68701/irq.c deleted file mode 100644 index f9a6d185fb8b..000000000000 --- a/arch/sh/boards/cat68701/irq.c +++ /dev/null @@ -1,28 +0,0 @@ -/* - * linux/arch/sh/boards/cat68701/irq.c - * - * Copyright (C) 2000 Niibe Yutaka - * 2001 Yutaro Ebihara - * - * Setup routines for A-ONE Corp CAT-68701 SH7708 Board - * - * 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 - -int cat68701_irq_demux(int irq) -{ - if(irq==13) return 14; - if(irq==7) return 10; - return irq; -} - -void init_cat68701_IRQ() -{ - make_imask_irq(10); - make_imask_irq(14); -} diff --git a/arch/sh/boards/cat68701/setup.c b/arch/sh/boards/cat68701/setup.c deleted file mode 100644 index 90e5175df227..000000000000 --- a/arch/sh/boards/cat68701/setup.c +++ /dev/null @@ -1,85 +0,0 @@ -/* - * linux/arch/sh/boards/cat68701/setup.c - * - * Copyright (C) 2000 Niibe Yutaka - * 2001 Yutaro Ebihara - * - * Setup routines for A-ONE Corp CAT-68701 SH7708 Board - * - * 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 - -const char *get_system_type(void) -{ - return "CAT-68701"; -} - -#ifdef CONFIG_HEARTBEAT -void heartbeat_cat68701() -{ - static unsigned int cnt = 0, period = 0 , bit = 0; - cnt += 1; - if (cnt < period) { - return; - } - cnt = 0; - - /* Go through the points (roughly!): - * f(0)=10, f(1)=16, f(2)=20, f(5)=35,f(inf)->110 - */ - period = 110 - ( (300<= 0x1f0) && (offset <= 0x1f7)) || (offset==0x3f6)) - return 0xba000000 + offset; - - /* INPUT PORT */ - if ((offset >= 0x3fc) && (offset <= 0x3fd)) - return 0xb4007000 + offset; - - /* OUTPUT PORT */ - if ((offset >= 0x3fe) && (offset <= 0x3ff)) - return 0xb4007400 + offset; - - return offset + 0xb4000000; /* other I/O (EREA 5)*/ -} - -/* - * The Machine Vector - */ - -struct sh_machine_vector mv_cat68701 __initmv = { - .mv_nr_irqs = 32, - .mv_isa_port2addr = cat68701_isa_port2addr, - .mv_irq_demux = cat68701_irq_demux, - - .mv_init_irq = init_cat68701_IRQ, -#ifdef CONFIG_HEARTBEAT - .mv_heartbeat = heartbeat_cat68701, -#endif -}; -ALIAS_MV(cat68701) - -int __init platform_setup(void) -{ - /* dummy read erea5 (CS8900A) */ -} - diff --git a/arch/sh/boards/cqreek/Makefile b/arch/sh/boards/cqreek/Makefile deleted file mode 100644 index 1a788a85eba3..000000000000 --- a/arch/sh/boards/cqreek/Makefile +++ /dev/null @@ -1,6 +0,0 @@ -# -# Makefile for the CqREEK specific parts of the kernel -# - -obj-y := setup.o irq.o - diff --git a/arch/sh/boards/cqreek/irq.c b/arch/sh/boards/cqreek/irq.c deleted file mode 100644 index 2955adc52310..000000000000 --- a/arch/sh/boards/cqreek/irq.c +++ /dev/null @@ -1,128 +0,0 @@ -/* $Id: irq.c,v 1.1.2.4 2002/11/04 20:33:56 lethal Exp $ - * - * arch/sh/boards/cqreek/irq.c - * - * Copyright (C) 2000 Niibe Yutaka - * - * CqREEK IDE/ISA Bridge Support. - * - */ - -#include -#include - -#include -#include -#include -#include -#include -#include -#include - -struct cqreek_irq_data { - unsigned short mask_port; /* Port of Interrupt Mask Register */ - unsigned short stat_port; /* Port of Interrupt Status Register */ - unsigned short bit; /* Value of the bit */ -}; -static struct cqreek_irq_data cqreek_irq_data[NR_IRQS]; - -static void disable_cqreek_irq(unsigned int irq) -{ - unsigned long flags; - unsigned short mask; - unsigned short mask_port = cqreek_irq_data[irq].mask_port; - unsigned short bit = cqreek_irq_data[irq].bit; - - local_irq_save(flags); - /* Disable IRQ */ - mask = inw(mask_port) & ~bit; - outw_p(mask, mask_port); - local_irq_restore(flags); -} - -static void enable_cqreek_irq(unsigned int irq) -{ - unsigned long flags; - unsigned short mask; - unsigned short mask_port = cqreek_irq_data[irq].mask_port; - unsigned short bit = cqreek_irq_data[irq].bit; - - local_irq_save(flags); - /* Enable IRQ */ - mask = inw(mask_port) | bit; - outw_p(mask, mask_port); - local_irq_restore(flags); -} - -static void mask_and_ack_cqreek(unsigned int irq) -{ - unsigned short stat_port = cqreek_irq_data[irq].stat_port; - unsigned short bit = cqreek_irq_data[irq].bit; - - disable_cqreek_irq(irq); - /* Clear IRQ (it might be edge IRQ) */ - inw(stat_port); - outw_p(bit, stat_port); -} - -static void end_cqreek_irq(unsigned int irq) -{ - if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS))) - enable_cqreek_irq(irq); -} - -static unsigned int startup_cqreek_irq(unsigned int irq) -{ - enable_cqreek_irq(irq); - return 0; -} - -static void shutdown_cqreek_irq(unsigned int irq) -{ - disable_cqreek_irq(irq); -} - -static struct hw_interrupt_type cqreek_irq_type = { - .typename = "CqREEK-IRQ", - .startup = startup_cqreek_irq, - .shutdown = shutdown_cqreek_irq, - .enable = enable_cqreek_irq, - .disable = disable_cqreek_irq, - .ack = mask_and_ack_cqreek, - .end = end_cqreek_irq -}; - -int cqreek_has_ide, cqreek_has_isa; - -/* XXX: This is just for test for my NE2000 ISA board - What we really need is virtualized IRQ and demultiplexer like HP600 port */ -void __init init_cqreek_IRQ(void) -{ - if (cqreek_has_ide) { - cqreek_irq_data[14].mask_port = BRIDGE_IDE_INTR_MASK; - cqreek_irq_data[14].stat_port = BRIDGE_IDE_INTR_STAT; - cqreek_irq_data[14].bit = 1; - - irq_desc[14].chip = &cqreek_irq_type; - irq_desc[14].status = IRQ_DISABLED; - irq_desc[14].action = 0; - irq_desc[14].depth = 1; - - disable_cqreek_irq(14); - } - - if (cqreek_has_isa) { - cqreek_irq_data[10].mask_port = BRIDGE_ISA_INTR_MASK; - cqreek_irq_data[10].stat_port = BRIDGE_ISA_INTR_STAT; - cqreek_irq_data[10].bit = (1 << 10); - - /* XXX: Err... we may need demultiplexer for ISA irq... */ - irq_desc[10].chip = &cqreek_irq_type; - irq_desc[10].status = IRQ_DISABLED; - irq_desc[10].action = 0; - irq_desc[10].depth = 1; - - disable_cqreek_irq(10); - } -} - diff --git a/arch/sh/boards/cqreek/setup.c b/arch/sh/boards/cqreek/setup.c deleted file mode 100644 index eff4ed93599f..000000000000 --- a/arch/sh/boards/cqreek/setup.c +++ /dev/null @@ -1,100 +0,0 @@ -/* $Id: setup.c,v 1.5 2003/08/04 01:51:58 lethal Exp $ - * - * arch/sh/kernel/setup_cqreek.c - * - * Copyright (C) 2000 Niibe Yutaka - * - * CqREEK IDE/ISA Bridge Support. - * - */ - -#include -#include -#include - -#include -#include -#include -#include -#include -#include - -#define IDE_OFFSET 0xA4000000UL -#define ISA_OFFSET 0xA4A00000UL - -const char *get_system_type(void) -{ - return "CqREEK"; -} - -static unsigned long cqreek_port2addr(unsigned long port) -{ - if (0x0000<=port && port<=0x0040) - return IDE_OFFSET + port; - if ((0x01f0<=port && port<=0x01f7) || port == 0x03f6) - return IDE_OFFSET + port; - - return ISA_OFFSET + port; -} - -/* - * The Machine Vector - */ -struct sh_machine_vector mv_cqreek __initmv = { -#if defined(CONFIG_CPU_SH4) - .mv_nr_irqs = 48, -#elif defined(CONFIG_CPU_SUBTYPE_SH7708) - .mv_nr_irqs = 32, -#elif defined(CONFIG_CPU_SUBTYPE_SH7709) - .mv_nr_irqs = 61, -#endif - - .mv_init_irq = init_cqreek_IRQ, - - .mv_isa_port2addr = cqreek_port2addr, -}; -ALIAS_MV(cqreek) - -/* - * Initialize the board - */ -void __init platform_setup(void) -{ - int i; -/* udelay is not available at setup time yet... */ -#define DELAY() do {for (i=0; i<10000; i++) ctrl_inw(0xa0000000);} while(0) - - if ((inw (BRIDGE_FEATURE) & 1)) { /* We have IDE interface */ - outw_p(0, BRIDGE_IDE_INTR_LVL); - outw_p(0, BRIDGE_IDE_INTR_MASK); - - outw_p(0, BRIDGE_IDE_CTRL); - DELAY(); - - outw_p(0x8000, BRIDGE_IDE_CTRL); - DELAY(); - - outw_p(0xffff, BRIDGE_IDE_INTR_STAT); /* Clear interrupt status */ - outw_p(0x0f-14, BRIDGE_IDE_INTR_LVL); /* Use 14 IPR */ - outw_p(1, BRIDGE_IDE_INTR_MASK); /* Enable interrupt */ - cqreek_has_ide=1; - } - - if ((inw (BRIDGE_FEATURE) & 2)) { /* We have ISA interface */ - outw_p(0, BRIDGE_ISA_INTR_LVL); - outw_p(0, BRIDGE_ISA_INTR_MASK); - - outw_p(0, BRIDGE_ISA_CTRL); - DELAY(); - outw_p(0x8000, BRIDGE_ISA_CTRL); - DELAY(); - - outw_p(0xffff, BRIDGE_ISA_INTR_STAT); /* Clear interrupt status */ - outw_p(0x0f-10, BRIDGE_ISA_INTR_LVL); /* Use 10 IPR */ - outw_p(0xfff8, BRIDGE_ISA_INTR_MASK); /* Enable interrupt */ - cqreek_has_isa=1; - } - - printk(KERN_INFO "CqREEK Setup (IDE=%d, ISA=%d)...done\n", cqreek_has_ide, cqreek_has_isa); -} - diff --git a/arch/sh/boards/dmida/Makefile b/arch/sh/boards/dmida/Makefile deleted file mode 100644 index 75999aa0a2d9..000000000000 --- a/arch/sh/boards/dmida/Makefile +++ /dev/null @@ -1,7 +0,0 @@ -# -# Makefile for the DataMyte Industrial Digital Assistant(tm) specific parts -# of the kernel -# - -obj-y := mach.o - diff --git a/arch/sh/boards/dmida/mach.c b/arch/sh/boards/dmida/mach.c deleted file mode 100644 index d03a25f989c2..000000000000 --- a/arch/sh/boards/dmida/mach.c +++ /dev/null @@ -1,59 +0,0 @@ -/* - * linux/arch/sh/boards/dmida/mach.c - * - * by Greg Banks - * (c) 2000 PocketPenguins Inc - * - * Derived from mach_hp600.c, which bore the message: - * Copyright (C) 2000 Stuart Menefy (stuart.menefy@st.com) - * - * May be copied or modified under the terms of the GNU General Public - * License. See linux/COPYING for more information. - * - * Machine vector for the DataMyte Industrial Digital Assistant(tm). - * See http://www.dmida.com - * - */ - -#include - -#include -#include -#include - -#include -#include -#include - -/* - * The Machine Vector - */ - -struct sh_machine_vector mv_dmida __initmv = { - .mv_nr_irqs = HD64465_IRQ_BASE+HD64465_IRQ_NUM, - - .mv_inb = hd64465_inb, - .mv_inw = hd64465_inw, - .mv_inl = hd64465_inl, - .mv_outb = hd64465_outb, - .mv_outw = hd64465_outw, - .mv_outl = hd64465_outl, - - .mv_inb_p = hd64465_inb_p, - .mv_inw_p = hd64465_inw, - .mv_inl_p = hd64465_inl, - .mv_outb_p = hd64465_outb_p, - .mv_outw_p = hd64465_outw, - .mv_outl_p = hd64465_outl, - - .mv_insb = hd64465_insb, - .mv_insw = hd64465_insw, - .mv_insl = hd64465_insl, - .mv_outsb = hd64465_outsb, - .mv_outsw = hd64465_outsw, - .mv_outsl = hd64465_outsl, - - .mv_irq_demux = hd64465_irq_demux, -}; -ALIAS_MV(dmida) - diff --git a/arch/sh/boards/harp/Makefile b/arch/sh/boards/harp/Makefile deleted file mode 100644 index eb753d31812e..000000000000 --- a/arch/sh/boards/harp/Makefile +++ /dev/null @@ -1,8 +0,0 @@ -# -# Makefile for STMicroelectronics board specific parts of the kernel -# - -obj-y := irq.o setup.o mach.o led.o - -obj-$(CONFIG_PCI) += pcidma.o - diff --git a/arch/sh/boards/harp/irq.c b/arch/sh/boards/harp/irq.c deleted file mode 100644 index 96bb41c9fc55..000000000000 --- a/arch/sh/boards/harp/irq.c +++ /dev/null @@ -1,147 +0,0 @@ -/* - * Copyright (C) 2000 David J. Mckay (david.mckay@st.com) - * - * May be copied or modified under the terms of the GNU General Public - * License. See linux/COPYING for more information. - * - * Looks after interrupts on the HARP board. - * - * Bases on the IPR irq system - */ - -#include -#include - -#include -#include -#include - - -#define NUM_EXTERNAL_IRQS 16 - -// Early versions of the STB1 Overdrive required this nasty frig -//#define INVERT_INTMASK_WRITES - -static void enable_harp_irq(unsigned int irq); -static void disable_harp_irq(unsigned int irq); - -/* shutdown is same as "disable" */ -#define shutdown_harp_irq disable_harp_irq - -static void mask_and_ack_harp(unsigned int); -static void end_harp_irq(unsigned int irq); - -static unsigned int startup_harp_irq(unsigned int irq) -{ - enable_harp_irq(irq); - return 0; /* never anything pending */ -} - -static struct hw_interrupt_type harp_irq_type = { - .typename = "Harp-IRQ", - .startup = startup_harp_irq, - .shutdown = shutdown_harp_irq, - .enable = enable_harp_irq, - .disable = disable_harp_irq, - .ack = mask_and_ack_harp, - .end = end_harp_irq -}; - -static void disable_harp_irq(unsigned int irq) -{ - unsigned val, flags; - unsigned maskReg; - unsigned mask; - int pri; - - if (irq < 0 || irq >= NUM_EXTERNAL_IRQS) - return; - - pri = 15 - irq; - - if (pri < 8) { - maskReg = EPLD_INTMASK0; - } else { - maskReg = EPLD_INTMASK1; - pri -= 8; - } - - local_irq_save(flags); - mask = ctrl_inl(maskReg); - mask &= (~(1 << pri)); -#if defined(INVERT_INTMASK_WRITES) - mask ^= 0xff; -#endif - ctrl_outl(mask, maskReg); - local_irq_restore(flags); -} - -static void enable_harp_irq(unsigned int irq) -{ - unsigned flags; - unsigned maskReg; - unsigned mask; - int pri; - - if (irq < 0 || irq >= NUM_EXTERNAL_IRQS) - return; - - pri = 15 - irq; - - if (pri < 8) { - maskReg = EPLD_INTMASK0; - } else { - maskReg = EPLD_INTMASK1; - pri -= 8; - } - - local_irq_save(flags); - mask = ctrl_inl(maskReg); - - - mask |= (1 << pri); - -#if defined(INVERT_INTMASK_WRITES) - mask ^= 0xff; -#endif - ctrl_outl(mask, maskReg); - - local_irq_restore(flags); -} - -/* This functions sets the desired irq handler to be an overdrive type */ -static void __init make_harp_irq(unsigned int irq) -{ - disable_irq_nosync(irq); - irq_desc[irq].chip = &harp_irq_type; - disable_harp_irq(irq); -} - -static void mask_and_ack_harp(unsigned int irq) -{ - disable_harp_irq(irq); -} - -static void end_harp_irq(unsigned int irq) -{ - enable_harp_irq(irq); -} - -void __init init_harp_irq(void) -{ - int i; - -#if !defined(INVERT_INTMASK_WRITES) - // On the harp these are set to enable an interrupt - ctrl_outl(0x00, EPLD_INTMASK0); - ctrl_outl(0x00, EPLD_INTMASK1); -#else - // On the Overdrive the data is inverted before being stored in the reg - ctrl_outl(0xff, EPLD_INTMASK0); - ctrl_outl(0xff, EPLD_INTMASK1); -#endif - - for (i = 0; i < NUM_EXTERNAL_IRQS; i++) { - make_harp_irq(i); - } -} diff --git a/arch/sh/boards/harp/led.c b/arch/sh/boards/harp/led.c deleted file mode 100644 index aeb7b392b190..000000000000 --- a/arch/sh/boards/harp/led.c +++ /dev/null @@ -1,51 +0,0 @@ -/* - * linux/arch/sh/stboards/led.c - * - * Copyright (C) 2000 Stuart Menefy - * - * May be copied or modified under the terms of the GNU General Public - * License. See linux/COPYING for more information. - * - * This file contains ST40STB1 HARP and compatible code. - */ - -#include -#include - -/* Harp: Flash LD10 (front pannel) connected to EPLD (IC8) */ -/* Overdrive: Flash LD1 (front panel) connected to EPLD (IC4) */ -/* Works for HARP and overdrive */ -static void mach_led(int position, int value) -{ - if (value) { - ctrl_outl(EPLD_LED_ON, EPLD_LED); - } else { - ctrl_outl(EPLD_LED_OFF, EPLD_LED); - } -} - -#ifdef CONFIG_HEARTBEAT - -#include - -/* acts like an actual heart beat -- ie thump-thump-pause... */ -void heartbeat_harp(void) -{ - static unsigned cnt = 0, period = 0, dist = 0; - - if (cnt == 0 || cnt == dist) - mach_led( -1, 1); - else if (cnt == 7 || cnt == dist+7) - mach_led( -1, 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 - -void setup_harp(void); -void init_harp_irq(void); -void heartbeat_harp(void); - -/* - * The Machine Vector - */ - -struct sh_machine_vector mv_harp __initmv = { - .mv_nr_irqs = 89 + HD64465_IRQ_NUM, - - .mv_inb = hd64465_inb, - .mv_inw = hd64465_inw, - .mv_inl = hd64465_inl, - .mv_outb = hd64465_outb, - .mv_outw = hd64465_outw, - .mv_outl = hd64465_outl, - - .mv_inb_p = hd64465_inb_p, - .mv_inw_p = hd64465_inw, - .mv_inl_p = hd64465_inl, - .mv_outb_p = hd64465_outb_p, - .mv_outw_p = hd64465_outw, - .mv_outl_p = hd64465_outl, - - .mv_insb = hd64465_insb, - .mv_insw = hd64465_insw, - .mv_insl = hd64465_insl, - .mv_outsb = hd64465_outsb, - .mv_outsw = hd64465_outsw, - .mv_outsl = hd64465_outsl, - - .mv_isa_port2addr = hd64465_isa_port2addr, - -#ifdef CONFIG_PCI - .mv_init_irq = init_harp_irq, -#endif -#ifdef CONFIG_HEARTBEAT - .mv_heartbeat = heartbeat_harp, -#endif -}; - -ALIAS_MV(harp) diff --git a/arch/sh/boards/harp/pcidma.c b/arch/sh/boards/harp/pcidma.c deleted file mode 100644 index 475311390fd6..000000000000 --- a/arch/sh/boards/harp/pcidma.c +++ /dev/null @@ -1,42 +0,0 @@ -/* - * Copyright (C) 2001 David J. Mckay (david.mckay@st.com) - * - * May be copied or modified under the terms of the GNU General Public - * License. See linux/COPYING for more information. - * - * Dynamic DMA mapping support. - */ - -#include -#include -#include -#include -#include -#include - - -void *pci_alloc_consistent(struct pci_dev *hwdev, size_t size, - dma_addr_t * dma_handle) -{ - void *ret; - int gfp = GFP_ATOMIC; - - ret = (void *) __get_free_pages(gfp, get_order(size)); - - if (ret != NULL) { - /* Is it neccessary to do the memset? */ - memset(ret, 0, size); - *dma_handle = virt_to_bus(ret); - } - /* We must flush the cache before we pass it on to the device */ - flush_cache_all(); - return P2SEGADDR(ret); -} - -void pci_free_consistent(struct pci_dev *hwdev, size_t size, - void *vaddr, dma_addr_t dma_handle) -{ - unsigned long p1addr=P1SEGADDR((unsigned long)vaddr); - - free_pages(p1addr, get_order(size)); -} diff --git a/arch/sh/boards/harp/setup.c b/arch/sh/boards/harp/setup.c deleted file mode 100644 index 886e450ab63e..000000000000 --- a/arch/sh/boards/harp/setup.c +++ /dev/null @@ -1,90 +0,0 @@ -/* - * arch/sh/stboard/setup.c - * - * Copyright (C) 2001 Stuart Menefy (stuart.menefy@st.com) - * - * May be copied or modified under the terms of the GNU General Public - * License. See linux/COPYING for more information. - * - * STMicroelectronics ST40STB1 HARP and compatible support. - */ - -#include -#include -#include -#include - -const char *get_system_type(void) -{ - return "STB1 Harp"; -} - -/* - * Initialize the board - */ -int __init platform_setup(void) -{ -#ifdef CONFIG_SH_STB1_HARP - unsigned long ic8_version, ic36_version; - - ic8_version = ctrl_inl(EPLD_REVID2); - ic36_version = ctrl_inl(EPLD_REVID1); - - printk("STMicroelectronics STB1 HARP initialisaton\n"); - printk("EPLD versions: IC8: %d.%02d, IC36: %d.%02d\n", - (ic8_version >> 4) & 0xf, ic8_version & 0xf, - (ic36_version >> 4) & 0xf, ic36_version & 0xf); -#elif defined(CONFIG_SH_STB1_OVERDRIVE) - unsigned long version; - - version = ctrl_inl(EPLD_REVID); - - printk("STMicroelectronics STB1 Overdrive initialisaton\n"); - printk("EPLD version: %d.%02d\n", - (version >> 4) & 0xf, version & 0xf); -#else -#error Undefined machine -#endif - - /* Currently all STB1 chips have problems with the sleep instruction, - * so disable it here. - */ - disable_hlt(); - - return 0; -} - -/* - * pcibios_map_platform_irq - * - * This is board specific and returns the IRQ for a given PCI device. - * It is used by the PCI code (arch/sh/kernel/st40_pci*) - * - */ - -#define HARP_PCI_IRQ 1 -#define HARP_BRIDGE_IRQ 2 -#define OVERDRIVE_SLOT0_IRQ 0 - - -int __init pcibios_map_platform_irq(struct pci_dev *dev, u8 slot, u8 pin) -{ - switch (slot) { -#ifdef CONFIG_SH_STB1_HARP - case 2: /*This is the PCI slot on the */ - return HARP_PCI_IRQ; - case 1: /* this is the bridge */ - return HARP_BRIDGE_IRQ; -#elif defined(CONFIG_SH_STB1_OVERDRIVE) - case 1: - case 2: - case 3: - return slot - 1; -#else -#error Unknown board -#endif - default: - return -1; - } -} - diff --git a/arch/sh/boards/overdrive/Makefile b/arch/sh/boards/overdrive/Makefile deleted file mode 100644 index 245f03baf762..000000000000 --- a/arch/sh/boards/overdrive/Makefile +++ /dev/null @@ -1,8 +0,0 @@ -# -# Makefile for the STMicroelectronics Overdrive specific parts of the kernel -# - -obj-y := mach.o setup.o io.o irq.o led.o - -obj-$(CONFIG_PCI) += fpga.o galileo.o pcidma.o - diff --git a/arch/sh/boards/overdrive/fpga.c b/arch/sh/boards/overdrive/fpga.c deleted file mode 100644 index 956c23901228..000000000000 --- a/arch/sh/boards/overdrive/fpga.c +++ /dev/null @@ -1,133 +0,0 @@ -/* - * Copyright (C) 2000 David J. Mckay (david.mckay@st.com) - * - * May be copied or modified under the terms of the GNU General Public - * License. See linux/COPYING for more information. - * - * This file handles programming up the Altera Flex10K that interfaces to - * the Galileo, and does the PS/2 keyboard and mouse - * - */ - - -#include -#include -#include -#include -#include -#include -#include - - -#include -#include -#include - -#define FPGA_NotConfigHigh() (*FPGA_ControlReg) = (*FPGA_ControlReg) | ENABLE_FPGA_BIT -#define FPGA_NotConfigLow() (*FPGA_ControlReg) = (*FPGA_ControlReg) & RESET_FPGA_MASK - -/* I need to find out what (if any) the real delay factor here is */ -/* The delay is definately not critical */ -#define long_delay() {int i;for(i=0;i<10000;i++);} -#define short_delay() {int i;for(i=0;i<100;i++);} - -static void __init program_overdrive_fpga(const unsigned char *fpgacode, - int size) -{ - int timeout = 0; - int i, j; - unsigned char b; - static volatile unsigned char *FPGA_ControlReg = - (volatile unsigned char *) (OVERDRIVE_CTRL); - static volatile unsigned char *FPGA_ProgramReg = - (volatile unsigned char *) (FPGA_DCLK_ADDRESS); - - printk("FPGA: Commencing FPGA Programming\n"); - - /* The PCI reset but MUST be low when programming the FPGA !!! */ - b = (*FPGA_ControlReg) & RESET_PCI_MASK; - - (*FPGA_ControlReg) = b; - - /* Prepare FPGA to program */ - - FPGA_NotConfigHigh(); - long_delay(); - - FPGA_NotConfigLow(); - short_delay(); - - while ((*FPGA_ProgramReg & FPGA_NOT_STATUS) != 0) { - printk("FPGA: Waiting for NotStatus to go Low ... \n"); - } - - FPGA_NotConfigHigh(); - - /* Wait for FPGA "ready to be programmed" signal */ - printk("FPGA: Waiting for NotStatus to go high (FPGA ready)... \n"); - - for (timeout = 0; - (((*FPGA_ProgramReg & FPGA_NOT_STATUS) == 0) - && (timeout < FPGA_TIMEOUT)); timeout++); - - /* Check if timeout condition occured - i.e. an error */ - - if (timeout == FPGA_TIMEOUT) { - printk - ("FPGA: Failed to program - Timeout waiting for notSTATUS to go high\n"); - return; - } - - printk("FPGA: Copying data to FPGA ... %d bytes\n", size); - - /* Copy array to FPGA - bit at a time */ - - for (i = 0; i < size; i++) { - volatile unsigned w = 0; - - for (j = 0; j < 8; j++) { - *FPGA_ProgramReg = (fpgacode[i] >> j) & 0x01; - short_delay(); - } - if ((i & 0x3ff) == 0) { - printk("."); - } - } - - /* Waiting for CONFDONE to go high - means the program is complete */ - - for (timeout = 0; - (((*FPGA_ProgramReg & FPGA_CONFDONE) == 0) - && (timeout < FPGA_TIMEOUT)); timeout++) { - - *FPGA_ProgramReg = 0x0; - long_delay(); - } - - if (timeout == FPGA_TIMEOUT) { - printk - ("FPGA: Failed to program - Timeout waiting for CONFDONE to go high\n"); - return; - } else { /* Clock another 10 times - gets the device into a working state */ - for (i = 0; i < 10; i++) { - *FPGA_ProgramReg = 0x0; - short_delay(); - } - } - - printk("FPGA: Programming complete\n"); -} - - -static const unsigned char __init fpgacode[] = { -#include "./overdrive.ttf" /* Code from maxplus2 compiler */ - , 0, 0 -}; - - -int __init init_overdrive_fpga(void) -{ - program_overdrive_fpga(fpgacode, sizeof(fpgacode)); - - return 0; -} diff --git a/arch/sh/boards/overdrive/galileo.c b/arch/sh/boards/overdrive/galileo.c deleted file mode 100644 index 29e48971bba0..000000000000 --- a/arch/sh/boards/overdrive/galileo.c +++ /dev/null @@ -1,587 +0,0 @@ -/* - * Copyright (C) 2000 David J. Mckay (david.mckay@st.com) - * - * May be copied or modified under the terms of the GNU General Public - * License. See linux/COPYING for more information. - * - * This file contains the PCI routines required for the Galileo GT6411 - * PCI bridge as used on the Orion and Overdrive boards. - * - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include - - -/* After boot, we shift the Galileo registers so that they appear - * in BANK6, along with IO space. This means we can have one contingous - * lump of PCI address space without these registers appearing in the - * middle of them - */ - -#define GT64111_BASE_ADDRESS 0xbb000000 -#define GT64111_IO_BASE_ADDRESS 0x1000 -/* The GT64111 registers appear at this address to the SH4 after reset */ -#define RESET_GT64111_BASE_ADDRESS 0xb4000000 - -/* Macros used to access the Galileo registers */ -#define RESET_GT64111_REG(x) (RESET_GT64111_BASE_ADDRESS+x) -#define GT64111_REG(x) (GT64111_BASE_ADDRESS+x) - -#define RESET_GT_WRITE(x,v) writel((v),RESET_GT64111_REG(x)) - -#define RESET_GT_READ(x) readl(RESET_GT64111_REG(x)) - -#define GT_WRITE(x,v) writel((v),GT64111_REG(x)) -#define GT_WRITE_BYTE(x,v) writeb((v),GT64111_REG(x)) -#define GT_WRITE_SHORT(x,v) writew((v),GT64111_REG(x)) - -#define GT_READ(x) readl(GT64111_REG(x)) -#define GT_READ_BYTE(x) readb(GT64111_REG(x)) -#define GT_READ_SHORT(x) readw(GT64111_REG(x)) - - -/* Where the various SH banks start at */ -#define SH_BANK4_ADR 0xb0000000 -#define SH_BANK5_ADR 0xb4000000 -#define SH_BANK6_ADR 0xb8000000 - -/* Masks out everything but lines 28,27,26 */ -#define BANK_SELECT_MASK 0x1c000000 - -#define SH4_TO_BANK(x) ( (x) & BANK_SELECT_MASK) - -/* - * Masks used for address conversaion. Bank 6 is used for IO and - * has all the address bits zeroed by the FPGA. Special case this - */ -#define MEMORY_BANK_MASK 0x1fffffff -#define IO_BANK_MASK 0x03ffffff - -/* Mark bank 6 as the bank used for IO. You can change this in the FPGA code - * if you want - */ -#define IO_BANK_ADR PCI_GTIO_BASE - -/* Will select the correct mask to apply depending on the SH$ address */ -#define SELECT_BANK_MASK(x) \ - ( (SH4_TO_BANK(x)==SH4_TO_BANK(IO_BANK_ADR)) ? IO_BANK_MASK : MEMORY_BANK_MASK) - -/* Converts between PCI space and P2 region */ -#define SH4_TO_PCI(x) ((x)&SELECT_BANK_MASK(x)) - -/* Various macros for figuring out what to stick in the Galileo registers. - * You *really* don't want to figure this stuff out by hand, you always get - * it wrong - */ -#define GT_MEM_LO_ADR(x) ((((unsigned)((x)&SELECT_BANK_MASK(x)))>>21)&0x7ff) -#define GT_MEM_HI_ADR(x) ((((unsigned)((x)&SELECT_BANK_MASK(x)))>>21)&0x7f) -#define GT_MEM_SUB_ADR(x) ((((unsigned)((x)&SELECT_BANK_MASK(x)))>>20)&0xff) - -#define PROGRAM_HI_LO(block,a,s) \ - GT_WRITE(block##_LO_DEC_ADR,GT_MEM_LO_ADR(a));\ - GT_WRITE(block##_HI_DEC_ADR,GT_MEM_HI_ADR(a+s-1)) - -#define PROGRAM_SUB_HI_LO(block,a,s) \ - GT_WRITE(block##_LO_DEC_ADR,GT_MEM_SUB_ADR(a));\ - GT_WRITE(block##_HI_DEC_ADR,GT_MEM_SUB_ADR(a+s-1)) - -/* We need to set the size, and the offset register */ - -#define GT_BAR_MASK(x) ((x)&~0xfff) - -/* Macro to set up the BAR in the Galileo. Essentially used for the DRAM */ -#define PROGRAM_GT_BAR(block,a,s) \ - GT_WRITE(PCI_##block##_BANK_SIZE,GT_BAR_MASK((s-1)));\ - write_config_to_galileo(PCI_CONFIG_##block##_BASE_ADR,\ - GT_BAR_MASK(a)) - -#define DISABLE_GT_BAR(block) \ - GT_WRITE(PCI_##block##_BANK_SIZE,0),\ - GT_CONFIG_WRITE(PCI_CONFIG_##block##_BASE_ADR,\ - 0x80000000) - -/* Macros to disable things we are not going to use */ -#define DISABLE_DECODE(x) GT_WRITE(x##_LO_DEC_ADR,0x7ff);\ - GT_WRITE(x##_HI_DEC_ADR,0x00) - -#define DISABLE_SUB_DECODE(x) GT_WRITE(x##_LO_DEC_ADR,0xff);\ - GT_WRITE(x##_HI_DEC_ADR,0x00) - -static void __init reset_pci(void) -{ - /* Set RESET_PCI bit high */ - writeb(readb(OVERDRIVE_CTRL) | ENABLE_PCI_BIT, OVERDRIVE_CTRL); - udelay(250); - - /* Set RESET_PCI bit low */ - writeb(readb(OVERDRIVE_CTRL) & RESET_PCI_MASK, OVERDRIVE_CTRL); - udelay(250); - - writeb(readb(OVERDRIVE_CTRL) | ENABLE_PCI_BIT, OVERDRIVE_CTRL); - udelay(250); -} - -static int write_config_to_galileo(int where, u32 val); -#define GT_CONFIG_WRITE(where,val) write_config_to_galileo(where,val) - -#define ENABLE_PCI_DRAM - - -#ifdef TEST_DRAM -/* Test function to check out if the PCI DRAM is working OK */ -static int /* __init */ test_dram(unsigned *base, unsigned size) -{ - unsigned *p = base; - unsigned *end = (unsigned *) (((unsigned) base) + size); - unsigned w; - - for (p = base; p < end; p++) { - *p = 0xffffffff; - if (*p != 0xffffffff) { - printk("AAARGH -write failed!!! at %p is %x\n", p, - *p); - return 0; - } - *p = 0x0; - if (*p != 0x0) { - printk("AAARGH -write failed!!!\n"); - return 0; - } - } - - for (p = base; p < end; p++) { - *p = (unsigned) p; - if (*p != (unsigned) p) { - printk("Failed at 0x%p, actually is 0x%x\n", p, - *p); - return 0; - } - } - - for (p = base; p < end; p++) { - w = ((unsigned) p & 0xffff0000); - *p = w | (w >> 16); - } - - for (p = base; p < end; p++) { - w = ((unsigned) p & 0xffff0000); - w |= (w >> 16); - if (*p != w) { - printk - ("Failed at 0x%p, should be 0x%x actually is 0x%x\n", - p, w, *p); - return 0; - } - } - - return 1; -} -#endif - - -/* Function to set up and initialise the galileo. This sets up the BARS, - * maps the DRAM into the address space etc,etc - */ -int __init galileo_init(void) -{ - reset_pci(); - - /* Now shift the galileo regs into this block */ - RESET_GT_WRITE(INTERNAL_SPACE_DEC, - GT_MEM_LO_ADR(GT64111_BASE_ADDRESS)); - - /* Should have a sanity check here, that you can read back at the new - * address what you just wrote - */ - - /* Disable decode for all regions */ - DISABLE_DECODE(RAS10); - DISABLE_DECODE(RAS32); - DISABLE_DECODE(CS20); - DISABLE_DECODE(CS3); - DISABLE_DECODE(PCI_IO); - DISABLE_DECODE(PCI_MEM0); - DISABLE_DECODE(PCI_MEM1); - - /* Disable all BARS */ - GT_WRITE(BAR_ENABLE_ADR, 0x1ff); - DISABLE_GT_BAR(RAS10); - DISABLE_GT_BAR(RAS32); - DISABLE_GT_BAR(CS20); - DISABLE_GT_BAR(CS3); - - /* Tell the BAR where the IO registers now are */ - GT_CONFIG_WRITE(PCI_CONFIG_INT_REG_IO_ADR,GT_BAR_MASK( - (GT64111_IO_BASE_ADDRESS & - IO_BANK_MASK))); - /* set up a 112 Mb decode */ - PROGRAM_HI_LO(PCI_MEM0, SH_BANK4_ADR, 112 * 1024 * 1024); - - /* Set up a 32 MB io space decode */ - PROGRAM_HI_LO(PCI_IO, IO_BANK_ADR, 32 * 1024 * 1024); - -#ifdef ENABLE_PCI_DRAM - /* Program up the DRAM configuration - there is DRAM only in bank 0 */ - /* Now set up the DRAM decode */ - PROGRAM_HI_LO(RAS10, PCI_DRAM_BASE, PCI_DRAM_SIZE); - /* And the sub decode */ - PROGRAM_SUB_HI_LO(RAS0, PCI_DRAM_BASE, PCI_DRAM_SIZE); - - DISABLE_SUB_DECODE(RAS1); - - /* Set refresh rate */ - GT_WRITE(DRAM_BANK0_PARMS, 0x3f); - GT_WRITE(DRAM_CFG, 0x100); - - /* we have to lob off the top bits rememeber!! */ - PROGRAM_GT_BAR(RAS10, SH4_TO_PCI(PCI_DRAM_BASE), PCI_DRAM_SIZE); - -#endif - - /* We are only interested in decoding RAS10 and the Galileo's internal - * registers (as IO) on the PCI bus - */ -#ifdef ENABLE_PCI_DRAM - GT_WRITE(BAR_ENABLE_ADR, (~((1 << 8) | (1 << 3))) & 0x1ff); -#else - GT_WRITE(BAR_ENABLE_ADR, (~(1 << 3)) & 0x1ff); -#endif - - /* Change the class code to host bridge, it actually powers up - * as a memory controller - */ - GT_CONFIG_WRITE(8, 0x06000011); - - /* Allow the galileo to master the PCI bus */ - GT_CONFIG_WRITE(PCI_COMMAND, - PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER | - PCI_COMMAND_IO); - - -#if 0 - printk("Testing PCI DRAM - "); - if(test_dram(PCI_DRAM_BASE,PCI_DRAM_SIZE)) { - printk("Passed\n"); - }else { - printk("FAILED\n"); - } -#endif - return 0; - -} - - -#define SET_CONFIG_BITS(bus,devfn,where)\ - ((1<<31) | ((bus) << 16) | ((devfn) << 8) | ((where) & ~3)) - -#define CONFIG_CMD(dev, where) SET_CONFIG_BITS((dev)->bus->number,(dev)->devfn,where) - -/* This write to the galileo config registers, unlike the functions below, can - * be used before the PCI subsystem has started up - */ -static int __init write_config_to_galileo(int where, u32 val) -{ - GT_WRITE(PCI_CFG_ADR, SET_CONFIG_BITS(0, 0, where)); - - GT_WRITE(PCI_CFG_DATA, val); - return 0; -} - -/* We exclude the galileo and slot 31, the galileo because I don't know how to stop - * the setup code shagging up the setup I have done on it, and 31 because the whole - * thing locks up if you try to access that slot (which doesn't exist of course anyway - */ - -#define EXCLUDED_DEV(dev) ((dev->bus->number==0) && ((PCI_SLOT(dev->devfn)==0) || (PCI_SLOT(dev->devfn) == 31))) - -static int galileo_read_config_byte(struct pci_dev *dev, int where, - u8 * val) -{ - - - /* I suspect this doesn't work because this drives a special cycle ? */ - if (EXCLUDED_DEV(dev)) { - *val = 0xff; - return PCIBIOS_SUCCESSFUL; - } - /* Start the config cycle */ - GT_WRITE(PCI_CFG_ADR, CONFIG_CMD(dev, where)); - /* Read back the result */ - *val = GT_READ_BYTE(PCI_CFG_DATA + (where & 3)); - - return PCIBIOS_SUCCESSFUL; -} - - -static int galileo_read_config_word(struct pci_dev *dev, int where, - u16 * val) -{ - - if (EXCLUDED_DEV(dev)) { - *val = 0xffff; - return PCIBIOS_SUCCESSFUL; - } - - GT_WRITE(PCI_CFG_ADR, CONFIG_CMD(dev, where)); - *val = GT_READ_SHORT(PCI_CFG_DATA + (where & 2)); - - return PCIBIOS_SUCCESSFUL; -} - - -static int galileo_read_config_dword(struct pci_dev *dev, int where, - u32 * val) -{ - if (EXCLUDED_DEV(dev)) { - *val = 0xffffffff; - return PCIBIOS_SUCCESSFUL; - } - - GT_WRITE(PCI_CFG_ADR, CONFIG_CMD(dev, where)); - *val = GT_READ(PCI_CFG_DATA); - - return PCIBIOS_SUCCESSFUL; -} - -static int galileo_write_config_byte(struct pci_dev *dev, int where, - u8 val) -{ - GT_WRITE(PCI_CFG_ADR, CONFIG_CMD(dev, where)); - - GT_WRITE_BYTE(PCI_CFG_DATA + (where & 3), val); - - return PCIBIOS_SUCCESSFUL; -} - - -static int galileo_write_config_word(struct pci_dev *dev, int where, - u16 val) -{ - GT_WRITE(PCI_CFG_ADR, CONFIG_CMD(dev, where)); - - GT_WRITE_SHORT(PCI_CFG_DATA + (where & 2), val); - - return PCIBIOS_SUCCESSFUL; -} - -static int galileo_write_config_dword(struct pci_dev *dev, int where, - u32 val) -{ - GT_WRITE(PCI_CFG_ADR, CONFIG_CMD(dev, where)); - - GT_WRITE(PCI_CFG_DATA, val); - - return PCIBIOS_SUCCESSFUL; -} - -static struct pci_ops pci_config_ops = { - galileo_read_config_byte, - galileo_read_config_word, - galileo_read_config_dword, - galileo_write_config_byte, - galileo_write_config_word, - galileo_write_config_dword -}; - - -/* Everything hangs off this */ -static struct pci_bus *pci_root_bus; - - -static u8 __init no_swizzle(struct pci_dev *dev, u8 * pin) -{ - return PCI_SLOT(dev->devfn); -} - -static int __init map_od_irq(struct pci_dev *dev, u8 slot, u8 pin) -{ - /* Slot 1: Galileo - * Slot 2: PCI Slot 1 - * Slot 3: PCI Slot 2 - * Slot 4: ESS - */ - switch (slot) { - case 2: - return OVERDRIVE_PCI_IRQ1; - case 3: - /* Note this assumes you have a hacked card in slot 2 */ - return OVERDRIVE_PCI_IRQ2; - case 4: - return OVERDRIVE_ESS_IRQ; - default: - /* printk("PCI: Unexpected IRQ mapping request for slot %d\n", slot); */ - return -1; - } -} - - - -void __init -pcibios_fixup_pbus_ranges(struct pci_bus *bus, struct pbus_set_ranges_data *ranges) -{ - ranges->io_start -= bus->resource[0]->start; - ranges->io_end -= bus->resource[0]->start; - ranges->mem_start -= bus->resource[1]->start; - ranges->mem_end -= bus->resource[1]->start; -} - -static void __init pci_fixup_ide_bases(struct pci_dev *d) -{ - int i; - - /* - * PCI IDE controllers use non-standard I/O port decoding, respect it. - */ - if ((d->class >> 8) != PCI_CLASS_STORAGE_IDE) - return; - printk("PCI: IDE base address fixup for %s\n", pci_name(d)); - for(i=0; i<4; i++) { - struct resource *r = &d->resource[i]; - if ((r->start & ~0x80) == 0x374) { - r->start |= 2; - r->end = r->start; - } - } -} -DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, pci_fixup_ide_bases); - -void __init pcibios_init(void) -{ - static struct resource galio,galmem; - - /* Allocate the registers used by the Galileo */ - galio.flags = IORESOURCE_IO; - galio.name = "Galileo GT64011"; - galmem.flags = IORESOURCE_MEM|IORESOURCE_PREFETCH; - galmem.name = "Galileo GT64011 DRAM"; - - allocate_resource(&ioport_resource, &galio, 256, - GT64111_IO_BASE_ADDRESS,GT64111_IO_BASE_ADDRESS+256, 256, NULL, NULL); - allocate_resource(&iomem_resource, &galmem,PCI_DRAM_SIZE, - PHYSADDR(PCI_DRAM_BASE), PHYSADDR(PCI_DRAM_BASE)+PCI_DRAM_SIZE, - PCI_DRAM_SIZE, NULL, NULL); - - /* ok, do the scan man */ - pci_root_bus = pci_scan_bus(0, &pci_config_ops, NULL); - - pci_assign_unassigned_resources(); - pci_fixup_irqs(no_swizzle, map_od_irq); - -#ifdef TEST_DRAM - printk("Testing PCI DRAM - "); - if(test_dram(PCI_DRAM_BASE,PCI_DRAM_SIZE)) { - printk("Passed\n"); - }else { - printk("FAILED\n"); - } -#endif - -} - -char * __init pcibios_setup(char *str) -{ - return str; -} - - - -int pcibios_enable_device(struct pci_dev *dev) -{ - - 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; - -} - -/* We should do some optimisation work here I think. Ok for now though */ -void __init pcibios_fixup_bus(struct pci_bus *bus) -{ - -} - -void pcibios_align_resource(void *data, struct resource *res, - resource_size_t size) -{ -} - -void __init pcibios_update_resource(struct pci_dev *dev, struct resource *root, - struct resource *res, int resource) -{ - - unsigned long where, size; - u32 reg; - - - printk("PCI: Assigning %3s %08lx to %s\n", - res->flags & IORESOURCE_IO ? "IO" : "MEM", - res->start, dev->name); - - where = PCI_BASE_ADDRESS_0 + resource * 4; - size = res->end - res->start; - - pci_read_config_dword(dev, where, ®); - reg = (reg & size) | (((u32) (res->start - root->start)) & ~size); - pci_write_config_dword(dev, where, reg); -} - - -void __init pcibios_update_irq(struct pci_dev *dev, int irq) -{ - printk("PCI: Assigning IRQ %02d to %s\n", irq, dev->name); - pci_write_config_byte(dev, PCI_INTERRUPT_LINE, irq); -} - -/* - * If we set up a device for bus mastering, we need to check the latency - * timer as certain crappy BIOSes forget to set it properly. - */ -unsigned int pcibios_max_latency = 255; - -void pcibios_set_master(struct pci_dev *dev) -{ - u8 lat; - pci_read_config_byte(dev, PCI_LATENCY_TIMER, &lat); - if (lat < 16) - lat = (64 <= pcibios_max_latency) ? 64 : pcibios_max_latency; - else if (lat > pcibios_max_latency) - lat = pcibios_max_latency; - else - return; - printk("PCI: Setting latency timer of device %s to %d\n", pci_name(dev), lat); - pci_write_config_byte(dev, PCI_LATENCY_TIMER, lat); -} diff --git a/arch/sh/boards/overdrive/io.c b/arch/sh/boards/overdrive/io.c deleted file mode 100644 index 4671b6b047bb..000000000000 --- a/arch/sh/boards/overdrive/io.c +++ /dev/null @@ -1,172 +0,0 @@ -/* - * Copyright (C) 2000 David J. Mckay (david.mckay@st.com) - * - * May be copied or modified under the terms of the GNU General Public - * License. See linux/COPYING for more information. - * - * This file contains the I/O routines for use on the overdrive board - * - */ - -#include -#include -#include -#include -#include - -#include - -/* - * readX/writeX() are used to access memory mapped devices. On some - * architectures the memory mapped IO stuff needs to be accessed - * differently. On the SuperH architecture, we just read/write the - * memory location directly. - */ - -#define dprintk(x...) - -/* Translates an IO address to where it is mapped in memory */ - -#define io_addr(x) (((unsigned)(x))|PCI_GTIO_BASE) - -unsigned char od_inb(unsigned long port) -{ -dprintk("od_inb(%x)\n", port); - return readb(io_addr(port)) & 0xff; -} - - -unsigned short od_inw(unsigned long port) -{ -dprintk("od_inw(%x)\n", port); - return readw(io_addr(port)) & 0xffff; -} - -unsigned int od_inl(unsigned long port) -{ -dprintk("od_inl(%x)\n", port); - return readl(io_addr(port)); -} - -void od_outb(unsigned char value, unsigned long port) -{ -dprintk("od_outb(%x, %x)\n", value, port); - writeb(value, io_addr(port)); -} - -void od_outw(unsigned short value, unsigned long port) -{ -dprintk("od_outw(%x, %x)\n", value, port); - writew(value, io_addr(port)); -} - -void od_outl(unsigned int value, unsigned long port) -{ -dprintk("od_outl(%x, %x)\n", value, port); - writel(value, io_addr(port)); -} - -/* This is horrible at the moment - needs more work to do something sensible */ -#define IO_DELAY() udelay(10) - -#define OUT_DELAY(x,type) \ -void od_out##x##_p(unsigned type value,unsigned long port){out##x(value,port);IO_DELAY();} - -#define IN_DELAY(x,type) \ -unsigned type od_in##x##_p(unsigned long port) {unsigned type tmp=in##x(port);IO_DELAY();return tmp;} - - -OUT_DELAY(b,char) -OUT_DELAY(w,short) -OUT_DELAY(l,int) - -IN_DELAY(b,char) -IN_DELAY(w,short) -IN_DELAY(l,int) - - -/* Now for the string version of these functions */ -void od_outsb(unsigned long port, const void *addr, unsigned long count) -{ - int i; - unsigned char *p = (unsigned char *) addr; - - for (i = 0; i < count; i++, p++) { - outb(*p, port); - } -} - - -void od_insb(unsigned long port, void *addr, unsigned long count) -{ - int i; - unsigned char *p = (unsigned char *) addr; - - for (i = 0; i < count; i++, p++) { - *p = inb(port); - } -} - -/* For the 16 and 32 bit string functions, we have to worry about alignment. - * The SH does not do unaligned accesses, so we have to read as bytes and - * then write as a word or dword. - * This can be optimised a lot more, especially in the case where the data - * is aligned - */ - -void od_outsw(unsigned long port, const void *addr, unsigned long count) -{ - int i; - unsigned short tmp; - unsigned char *p = (unsigned char *) addr; - - for (i = 0; i < count; i++, p += 2) { - tmp = (*p) | ((*(p + 1)) << 8); - outw(tmp, port); - } -} - - -void od_insw(unsigned long port, void *addr, unsigned long count) -{ - int i; - unsigned short tmp; - unsigned char *p = (unsigned char *) addr; - - for (i = 0; i < count; i++, p += 2) { - tmp = inw(port); - p[0] = tmp & 0xff; - p[1] = (tmp >> 8) & 0xff; - } -} - - -void od_outsl(unsigned long port, const void *addr, unsigned long count) -{ - int i; - unsigned tmp; - unsigned char *p = (unsigned char *) addr; - - for (i = 0; i < count; i++, p += 4) { - tmp = (*p) | ((*(p + 1)) << 8) | ((*(p + 2)) << 16) | - ((*(p + 3)) << 24); - outl(tmp, port); - } -} - - -void od_insl(unsigned long port, void *addr, unsigned long count) -{ - int i; - unsigned tmp; - unsigned char *p = (unsigned char *) addr; - - for (i = 0; i < count; i++, p += 4) { - tmp = inl(port); - p[0] = tmp & 0xff; - p[1] = (tmp >> 8) & 0xff; - p[2] = (tmp >> 16) & 0xff; - p[3] = (tmp >> 24) & 0xff; - - } -} diff --git a/arch/sh/boards/overdrive/irq.c b/arch/sh/boards/overdrive/irq.c deleted file mode 100644 index 5d730c70389e..000000000000 --- a/arch/sh/boards/overdrive/irq.c +++ /dev/null @@ -1,191 +0,0 @@ -/* - * Copyright (C) 2000 David J. Mckay (david.mckay@st.com) - * - * May be copied or modified under the terms of the GNU General Public - * License. See linux/COPYING for more information. - * - * Looks after interrupts on the overdrive board. - * - * Bases on the IPR irq system - */ - -#include -#include - -#include -#include - -#include - -struct od_data { - int overdrive_irq; - int irq_mask; -}; - -#define NUM_EXTERNAL_IRQS 16 -#define EXTERNAL_IRQ_NOT_IN_USE (-1) -#define EXTERNAL_IRQ_NOT_ASSIGNED (-1) - -/* - * This table is used to determine what to program into the FPGA's CT register - * for the specified Linux IRQ. - * - * The irq_mask gives the interrupt number from the PCI board (PCI_Int(6:0)) - * but is one greater than that because the because the FPGA treats 0 - * as disabled, a value of 1 asserts PCI_Int0, and so on. - * - * The overdrive_irq specifies which of the eight interrupt sources generates - * that interrupt, and but is multiplied by four to give the bit offset into - * the CT register. - * - * The seven interrupts levels (SH4 IRL's) we have available here is hardwired - * by the EPLD. The assignments here of which PCI interrupt generates each - * level is arbitary. - */ -static struct od_data od_data_table[NUM_EXTERNAL_IRQS] = { - /* overdrive_irq , irq_mask */ - {EXTERNAL_IRQ_NOT_ASSIGNED, EXTERNAL_IRQ_NOT_IN_USE}, /* 0 */ - {EXTERNAL_IRQ_NOT_ASSIGNED, 7}, /* 1 */ - {EXTERNAL_IRQ_NOT_ASSIGNED, 6}, /* 2 */ - {EXTERNAL_IRQ_NOT_ASSIGNED, EXTERNAL_IRQ_NOT_IN_USE}, /* 3 */ - {EXTERNAL_IRQ_NOT_ASSIGNED, 5}, /* 4 */ - {EXTERNAL_IRQ_NOT_ASSIGNED, EXTERNAL_IRQ_NOT_IN_USE}, /* 5 */ - {EXTERNAL_IRQ_NOT_ASSIGNED, EXTERNAL_IRQ_NOT_IN_USE}, /* 6 */ - {EXTERNAL_IRQ_NOT_ASSIGNED, 4}, /* 7 */ - {EXTERNAL_IRQ_NOT_ASSIGNED, EXTERNAL_IRQ_NOT_IN_USE}, /* 8 */ - {EXTERNAL_IRQ_NOT_ASSIGNED, EXTERNAL_IRQ_NOT_IN_USE}, /* 9 */ - {EXTERNAL_IRQ_NOT_ASSIGNED, 3}, /* 10 */ - {EXTERNAL_IRQ_NOT_ASSIGNED, 2}, /* 11 */ - {EXTERNAL_IRQ_NOT_ASSIGNED, EXTERNAL_IRQ_NOT_IN_USE}, /* 12 */ - {EXTERNAL_IRQ_NOT_ASSIGNED, 1}, /* 13 */ - {EXTERNAL_IRQ_NOT_ASSIGNED, EXTERNAL_IRQ_NOT_IN_USE}, /* 14 */ - {EXTERNAL_IRQ_NOT_ASSIGNED, EXTERNAL_IRQ_NOT_IN_USE} /* 15 */ -}; - -static void set_od_data(int overdrive_irq, int irq) -{ - if (irq >= NUM_EXTERNAL_IRQS || irq < 0) - return; - od_data_table[irq].overdrive_irq = overdrive_irq << 2; -} - -static void enable_od_irq(unsigned int irq); -void disable_od_irq(unsigned int irq); - -/* shutdown is same as "disable" */ -#define shutdown_od_irq disable_od_irq - -static void mask_and_ack_od(unsigned int); -static void end_od_irq(unsigned int irq); - -static unsigned int startup_od_irq(unsigned int irq) -{ - enable_od_irq(irq); - return 0; /* never anything pending */ -} - -static struct hw_interrupt_type od_irq_type = { - .typename = "Overdrive-IRQ", - .startup = startup_od_irq, - .shutdown = shutdown_od_irq, - .enable = enable_od_irq, - .disable = disable_od_irq, - .ack = mask_and_ack_od, - .end = end_od_irq -}; - -static void disable_od_irq(unsigned int irq) -{ - unsigned val, flags; - int overdrive_irq; - unsigned mask; - - /* Not a valid interrupt */ - if (irq < 0 || irq >= NUM_EXTERNAL_IRQS) - return; - - /* Is is necessary to use a cli here? Would a spinlock not be - * mroe efficient? - */ - local_irq_save(flags); - overdrive_irq = od_data_table[irq].overdrive_irq; - if (overdrive_irq != EXTERNAL_IRQ_NOT_ASSIGNED) { - mask = ~(0x7 << overdrive_irq); - val = ctrl_inl(OVERDRIVE_INT_CT); - val &= mask; - ctrl_outl(val, OVERDRIVE_INT_CT); - } - local_irq_restore(flags); -} - -static void enable_od_irq(unsigned int irq) -{ - unsigned val, flags; - int overdrive_irq; - unsigned mask; - - /* Not a valid interrupt */ - if (irq < 0 || irq >= NUM_EXTERNAL_IRQS) - return; - - /* Set priority in OD back to original value */ - local_irq_save(flags); - /* This one is not in use currently */ - overdrive_irq = od_data_table[irq].overdrive_irq; - if (overdrive_irq != EXTERNAL_IRQ_NOT_ASSIGNED) { - val = ctrl_inl(OVERDRIVE_INT_CT); - mask = ~(0x7 << overdrive_irq); - val &= mask; - mask = od_data_table[irq].irq_mask << overdrive_irq; - val |= mask; - ctrl_outl(val, OVERDRIVE_INT_CT); - } - local_irq_restore(flags); -} - - - -/* this functions sets the desired irq handler to be an overdrive type */ -static void __init make_od_irq(unsigned int irq) -{ - disable_irq_nosync(irq); - irq_desc[irq].chip = &od_irq_type; - disable_od_irq(irq); -} - - -static void mask_and_ack_od(unsigned int irq) -{ - disable_od_irq(irq); -} - -static void end_od_irq(unsigned int irq) -{ - enable_od_irq(irq); -} - -void __init init_overdrive_irq(void) -{ - int i; - - /* Disable all interrupts */ - ctrl_outl(0, OVERDRIVE_INT_CT); - - /* Update interrupt pin mode to use encoded interrupts */ - i = ctrl_inw(INTC_ICR); - i &= ~INTC_ICR_IRLM; - ctrl_outw(i, INTC_ICR); - - for (i = 0; i < NUM_EXTERNAL_IRQS; i++) { - if (od_data_table[i].irq_mask != EXTERNAL_IRQ_NOT_IN_USE) { - make_od_irq(i); - } else if (i != 15) { // Cannot use imask on level 15 - make_imask_irq(i); - } - } - - /* Set up the interrupts */ - set_od_data(OVERDRIVE_PCI_INTA, OVERDRIVE_PCI_IRQ1); - set_od_data(OVERDRIVE_PCI_INTB, OVERDRIVE_PCI_IRQ2); - set_od_data(OVERDRIVE_AUDIO_INT, OVERDRIVE_ESS_IRQ); -} diff --git a/arch/sh/boards/overdrive/led.c b/arch/sh/boards/overdrive/led.c deleted file mode 100644 index 860d7f204a4e..000000000000 --- a/arch/sh/boards/overdrive/led.c +++ /dev/null @@ -1,58 +0,0 @@ -/* - * linux/arch/sh/overdrive/led.c - * - * Copyright (C) 1999 Stuart Menefy - * - * May be copied or modified under the terms of the GNU General Public - * License. See linux/COPYING for more information. - * - * This file contains an Overdrive specific LED feature. - */ - -#include -#include -#include - -static void mach_led(int position, int value) -{ - unsigned long flags; - unsigned long reg; - - local_irq_save(flags); - - reg = readl(OVERDRIVE_CTRL); - if (value) { - reg |= (1<<3); - } else { - reg &= ~(1<<3); - } - writel(reg, OVERDRIVE_CTRL); - - local_irq_restore(flags); -} - -#ifdef CONFIG_HEARTBEAT - -#include - -/* acts like an actual heart beat -- ie thump-thump-pause... */ -void heartbeat_od(void) -{ - static unsigned cnt = 0, period = 0, dist = 0; - - if (cnt == 0 || cnt == dist) - mach_led( -1, 1); - else if (cnt == 7 || cnt == dist+7) - mach_led( -1, 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 - -void heartbeat_od(void); -void init_overdrive_irq(void); -void galileo_pcibios_init(void); - -/* - * The Machine Vector - */ - -struct sh_machine_vector mv_od __initmv = { - .mv_nr_irqs = 48, - - .mv_inb = od_inb, - .mv_inw = od_inw, - .mv_inl = od_inl, - .mv_outb = od_outb, - .mv_outw = od_outw, - .mv_outl = od_outl, - - .mv_inb_p = od_inb_p, - .mv_inw_p = od_inw_p, - .mv_inl_p = od_inl_p, - .mv_outb_p = od_outb_p, - .mv_outw_p = od_outw_p, - .mv_outl_p = od_outl_p, - - .mv_insb = od_insb, - .mv_insw = od_insw, - .mv_insl = od_insl, - .mv_outsb = od_outsb, - .mv_outsw = od_outsw, - .mv_outsl = od_outsl, - -#ifdef CONFIG_PCI - .mv_init_irq = init_overdrive_irq, -#endif -#ifdef CONFIG_HEARTBEAT - .mv_heartbeat = heartbeat_od, -#endif -}; - -ALIAS_MV(od) diff --git a/arch/sh/boards/overdrive/pcidma.c b/arch/sh/boards/overdrive/pcidma.c deleted file mode 100644 index 1c9bfeda00b7..000000000000 --- a/arch/sh/boards/overdrive/pcidma.c +++ /dev/null @@ -1,46 +0,0 @@ -/* - * Copyright (C) 2000 David J. Mckay (david.mckay@st.com) - * - * May be copied or modified under the terms of the GNU General Public - * License. See linux/COPYING for more information. - * - * Dynamic DMA mapping support. - * - * On the overdrive, we can only DMA from memory behind the PCI bus! - * this means that all DMA'able memory must come from there. - * this restriction will not apply to later boards. - */ - -#include -#include -#include -#include -#include - -void *pci_alloc_consistent(struct pci_dev *hwdev, size_t size, - dma_addr_t * dma_handle) -{ - void *ret; - int gfp = GFP_ATOMIC; - - printk("BUG: pci_alloc_consistent() called - not yet supported\n"); - /* We ALWAYS need DMA memory on the overdrive hardware, - * due to it's extreme weirdness - * Need to flush the cache here as well, since the memory - * can still be seen through the cache! - */ - gfp |= GFP_DMA; - ret = (void *) __get_free_pages(gfp, get_order(size)); - - if (ret != NULL) { - memset(ret, 0, size); - *dma_handle = virt_to_bus(ret); - } - return ret; -} - -void pci_free_consistent(struct pci_dev *hwdev, size_t size, - void *vaddr, dma_addr_t dma_handle) -{ - free_pages((unsigned long) vaddr, get_order(size)); -} diff --git a/arch/sh/boards/overdrive/setup.c b/arch/sh/boards/overdrive/setup.c deleted file mode 100644 index a3a7744c2047..000000000000 --- a/arch/sh/boards/overdrive/setup.c +++ /dev/null @@ -1,36 +0,0 @@ -/* - * arch/sh/overdrive/setup.c - * - * Copyright (C) 2000 Stuart Menefy (stuart.menefy@st.com) - * - * May be copied or modified under the terms of the GNU General Public - * License. See linux/COPYING for more information. - * - * STMicroelectronics Overdrive Support. - */ - -#include -#include -#include - -#include -#include - -const char *get_system_type(void) -{ - return "SH7750 Overdrive"; -} - -/* - * Initialize the board - */ -int __init platform_setup(void) -{ -#ifdef CONFIG_PCI - init_overdrive_fpga(); - galileo_init(); -#endif - - /* Enable RS232 receive buffers */ - writel(0x1e, OVERDRIVE_CTRL); -} diff --git a/arch/sh/boards/sh2000/Makefile b/arch/sh/boards/sh2000/Makefile deleted file mode 100644 index 05d390c3599c..000000000000 --- a/arch/sh/boards/sh2000/Makefile +++ /dev/null @@ -1,6 +0,0 @@ -# -# Makefile for the SH2000 specific parts of the kernel -# - -obj-y := setup.o - diff --git a/arch/sh/boards/sh2000/setup.c b/arch/sh/boards/sh2000/setup.c deleted file mode 100644 index 2fe6a11765e9..000000000000 --- a/arch/sh/boards/sh2000/setup.c +++ /dev/null @@ -1,70 +0,0 @@ -/* - * linux/arch/sh/kernel/setup_sh2000.c - * - * Copyright (C) 2001 SUGIOKA Tochinobu - * - * SH-2000 Support. - * - */ - -#include -#include - -#include -#include -#include - -#define CF_CIS_BASE 0xb4200000 - -#define PORT_PECR 0xa4000108 -#define PORT_PHCR 0xa400010E -#define PORT_ICR1 0xa4000010 -#define PORT_IRR0 0xa4000004 - -#define IDE_OFFSET 0xb6200000 -#define NIC_OFFSET 0xb6000000 -#define EXTBUS_OFFSET 0xba000000 - - -const char *get_system_type(void) -{ - return "sh2000"; -} - -static unsigned long sh2000_isa_port2addr(unsigned long offset) -{ - if((offset & ~7) == 0x1f0 || offset == 0x3f6) - return IDE_OFFSET + offset; - else if((offset & ~0x1f) == 0x300) - return NIC_OFFSET + offset; - return EXTBUS_OFFSET + offset; -} - -/* - * The Machine Vector - */ -struct sh_machine_vector mv_sh2000 __initmv = { - .mv_nr_irqs = 80, - .mv_isa_port2addr = sh2000_isa_port2addr, -}; -ALIAS_MV(sh2000) - -/* - * Initialize the board - */ -int __init platform_setup(void) -{ - /* XXX: RTC setting comes here */ - - /* These should be done by BIOS/IPL ... */ - /* Enable nCE2A, nCE2B output */ - ctrl_outw(ctrl_inw(PORT_PECR) & ~0xf00, PORT_PECR); - /* Enable the Compact Flash card, and set the level interrupt */ - ctrl_outw(0x0042, CF_CIS_BASE+0x0200); - /* Enable interrupt */ - ctrl_outw(ctrl_inw(PORT_PHCR) & ~0x03f3, PORT_PHCR); - ctrl_outw(1, PORT_ICR1); - ctrl_outw(ctrl_inw(PORT_IRR0) & ~0xff3f, PORT_IRR0); - printk(KERN_INFO "SH-2000 Setup...done\n"); - return 0; -} diff --git a/arch/sh/tools/mach-types b/arch/sh/tools/mach-types index ffd218083876..b30e784b3a31 100644 --- a/arch/sh/tools/mach-types +++ b/arch/sh/tools/mach-types @@ -13,11 +13,9 @@ SE SH_SOLUTION_ENGINE HP6XX SH_HP6XX HD64461 HD64461 HD64465 HD64465 -SH2000 SH_SH2000 SATURN SH_SATURN DREAMCAST SH_DREAMCAST BIGSUR SH_BIGSUR -ADX SH_ADX MPC1211 SH_MPC1211 SNAPGEAR SH_SECUREEDGE5410 HS7751RVOIP SH_HS7751RVOIP diff --git a/include/asm-sh/adx/io.h b/include/asm-sh/adx/io.h deleted file mode 100644 index ab1225f1d557..000000000000 --- a/include/asm-sh/adx/io.h +++ /dev/null @@ -1,86 +0,0 @@ -/* - * include/asm-sh/io_adx.h - * - * Copyright (C) 2001 A&D Co., Ltd. - * - * This file may be copied or modified under the terms of the GNU - * General Public License. See linux/COPYING for more information. - * - * IO functions for an A&D ADX Board - */ - -#ifndef _ASM_SH_IO_ADX_H -#define _ASM_SH_IO_ADX_H - -#include - -extern unsigned char adx_inb(unsigned long port); -extern unsigned short adx_inw(unsigned long port); -extern unsigned int adx_inl(unsigned long port); - -extern void adx_outb(unsigned char value, unsigned long port); -extern void adx_outw(unsigned short value, unsigned long port); -extern void adx_outl(unsigned int value, unsigned long port); - -extern unsigned char adx_inb_p(unsigned long port); -extern void adx_outb_p(unsigned char value, unsigned long port); - -extern void adx_insb(unsigned long port, void *addr, unsigned long count); -extern void adx_insw(unsigned long port, void *addr, unsigned long count); -extern void adx_insl(unsigned long port, void *addr, unsigned long count); -extern void adx_outsb(unsigned long port, const void *addr, unsigned long count); -extern void adx_outsw(unsigned long port, const void *addr, unsigned long count); -extern void adx_outsl(unsigned long port, const void *addr, unsigned long count); - -extern unsigned char adx_readb(unsigned long addr); -extern unsigned short adx_readw(unsigned long addr); -extern unsigned int adx_readl(unsigned long addr); -extern void adx_writeb(unsigned char b, unsigned long addr); -extern void adx_writew(unsigned short b, unsigned long addr); -extern void adx_writel(unsigned int b, unsigned long addr); - -extern void * adx_ioremap(unsigned long offset, unsigned long size); -extern void adx_iounmap(void *addr); - -extern unsigned long adx_isa_port2addr(unsigned long offset); - -extern void setup_adx(void); -extern void init_adx_IRQ(void); - -#ifdef __WANT_IO_DEF - -#define __inb adx_inb -#define __inw adx_inw -#define __inl adx_inl -#define __outb adx_outb -#define __outw adx_outw -#define __outl adx_outl - -#define __inb_p adx_inb_p -#define __inw_p adx_inw -#define __inl_p adx_inl -#define __outb_p adx_outb_p -#define __outw_p adx_outw -#define __outl_p adx_outl - -#define __insb adx_insb -#define __insw adx_insw -#define __insl adx_insl -#define __outsb adx_outsb -#define __outsw adx_outsw -#define __outsl adx_outsl - -#define __readb adx_readb -#define __readw adx_readw -#define __readl adx_readl -#define __writeb adx_writeb -#define __writew adx_writew -#define __writel adx_writel - -#define __isa_port2addr adx_isa_port2addr -#define __ioremap adx_ioremap -#define __iounmap adx_iounmap - -#endif - -#endif /* _ASM_SH_IO_AANDD_H */ diff --git a/include/asm-sh/cat68701/io.h b/include/asm-sh/cat68701/io.h deleted file mode 100644 index 753b8466ad11..000000000000 --- a/include/asm-sh/cat68701/io.h +++ /dev/null @@ -1,22 +0,0 @@ -/* - * include/asm-sh/io_cat68701.h - * - * Copyright 2000 Stuart Menefy (stuart.menefy@st.com) - * 2001 Yutarou Ebihar (ebihara@si-linux.com) - * - * May be copied or modified under the terms of the GNU General Public - * License. See linux/COPYING for more information. - * - * IO functions for an AONE Corp. CAT-68701 SH7708 Borad - */ - -#ifndef _ASM_SH_IO_CAT68701_H -#define _ASM_SH_IO_CAT68701_H - -extern unsigned long cat68701_isa_port2addr(unsigned long offset); -extern int cat68701_irq_demux(int irq); - -extern void init_cat68701_IRQ(void); -extern void heartbeat_cat68701(void); - -#endif /* _ASM_SH_IO_CAT68701_H */ diff --git a/include/asm-sh/cqreek/cqreek.h b/include/asm-sh/cqreek/cqreek.h deleted file mode 100644 index 09aecc06693e..000000000000 --- a/include/asm-sh/cqreek/cqreek.h +++ /dev/null @@ -1,27 +0,0 @@ -#ifndef __ASM_SH_CQREEK_CQREEK_H -#define __ASM_SH_CQREEK_CQREEK_H - -#define BRIDGE_FEATURE 0x0002 - -#define BRIDGE_IDE_CTRL 0x0018 -#define BRIDGE_IDE_INTR_LVL 0x001A -#define BRIDGE_IDE_INTR_MASK 0x001C -#define BRIDGE_IDE_INTR_STAT 0x001E - -#define BRIDGE_ISA_CTRL 0x0028 -#define BRIDGE_ISA_INTR_LVL 0x002A -#define BRIDGE_ISA_INTR_MASK 0x002C -#define BRIDGE_ISA_INTR_STAT 0x002E - -/* arch/sh/boards/cqreek/setup.c */ -extern void setup_cqreek(void); - -/* arch/sh/boards/cqreek/irq.c */ -extern int cqreek_has_ide, cqreek_has_isa; -extern void init_cqreek_IRQ(void); - -/* arch/sh/boards/cqreek/io.c */ -extern unsigned long cqreek_port2addr(unsigned long port); - -#endif /* __ASM_SH_CQREEK_CQREEK_H */ - diff --git a/include/asm-sh/dmida/io.h b/include/asm-sh/dmida/io.h deleted file mode 100644 index 21bd416c01c3..000000000000 --- a/include/asm-sh/dmida/io.h +++ /dev/null @@ -1,10 +0,0 @@ -#ifndef __ASM_SH_DMIDA_IO_H -#define __ASM_SH_DMIDA_IO_H - -/* - * Nothing special here.. just use the generic cchip io routines. - */ -#include - -#endif /* __ASM_SH_DMIDA_IO_H */ - diff --git a/include/asm-sh/harp/harp.h b/include/asm-sh/harp/harp.h deleted file mode 100644 index b2fbcfae9940..000000000000 --- a/include/asm-sh/harp/harp.h +++ /dev/null @@ -1,43 +0,0 @@ -/* - * Copyright (C) 2001 David J. Mckay (david.mckay@st.com) - * - * May be copied or modified under the terms of the GNU General Public - * License. See linux/COPYING for more information. - * - * Defintions applicable to the STMicroelectronics ST40STB1 HARP and - * compatible boards. - */ - -#if defined(CONFIG_SH_STB1_HARP) - -#define EPLD_BASE 0xa0800000 - -#define EPLD_LED (EPLD_BASE+0x000c0000) -#define EPLD_INTSTAT0 (EPLD_BASE+0x00200000) -#define EPLD_INTSTAT1 (EPLD_BASE+0x00240000) -#define EPLD_INTMASK0 (EPLD_BASE+0x00280000) -#define EPLD_INTMASK1 (EPLD_BASE+0x002c0000) -#define EPLD_PAGEADDR (EPLD_BASE+0x00300000) -#define EPLD_REVID1 (EPLD_BASE+0x00380000) -#define EPLD_REVID2 (EPLD_BASE+0x003c0000) - -#define EPLD_LED_ON 1 -#define EPLD_LED_OFF 0 - -#elif defined(CONFIG_SH_STB1_OVERDRIVE) - -#define EPLD_BASE 0xa7000000 - -#define EPLD_REVID (EPLD_BASE+0x00000000) -#define EPLD_LED (EPLD_BASE+0x00040000) -#define EPLD_INTMASK0 (EPLD_BASE+0x001c0000) -#define EPLD_INTMASK1 (EPLD_BASE+0x00200000) -#define EPLD_INTSTAT0 (EPLD_BASE+0x00240000) -#define EPLD_INTSTAT1 (EPLD_BASE+0x00280000) - -#define EPLD_LED_ON 0 -#define EPLD_LED_OFF 1 - -#else -#error Unknown board -#endif diff --git a/include/asm-sh/harp/io.h b/include/asm-sh/harp/io.h deleted file mode 100644 index 68f39e0b39de..000000000000 --- a/include/asm-sh/harp/io.h +++ /dev/null @@ -1,10 +0,0 @@ -#ifndef __ASM_SH_HARP_IO_H -#define __ASM_SH_HARP_IO_H - -/* - * Nothing special here.. just use the generic cchip io routines. - */ -#include - -#endif /* __ASM_SH_HARP_IO_H */ - diff --git a/include/asm-sh/overdrive/fpga.h b/include/asm-sh/overdrive/fpga.h deleted file mode 100644 index 1cd87992c124..000000000000 --- a/include/asm-sh/overdrive/fpga.h +++ /dev/null @@ -1,15 +0,0 @@ -/* - * Copyright (C) 2000 David J. Mckay (david.mckay@st.com) - * - * May be copied or modified under the terms of the GNU General Public - * License. See linux/COPYING for more information. - * - */ - -#ifndef __FPGA_OD_H__ -#define __FPGA_OD_H__ - -/* This routine will program up the fpga which interfaces to the galileo */ -int init_overdrive_fpga(void); - -#endif diff --git a/include/asm-sh/overdrive/gt64111.h b/include/asm-sh/overdrive/gt64111.h deleted file mode 100644 index 01d58bc13a44..000000000000 --- a/include/asm-sh/overdrive/gt64111.h +++ /dev/null @@ -1,109 +0,0 @@ -#ifndef _GT64111_H_ -#define _GT64111_H_ - -#define MASTER_INTERFACE 0x0 -#define RAS10_LO_DEC_ADR 0x8 -#define RAS10_HI_DEC_ADR 0x10 -#define RAS32_LO_DEC_ADR 0x18 -#define RAS32_HI_DEC_ADR 0x20 -#define CS20_LO_DEC_ADR 0x28 -#define CS20_HI_DEC_ADR 0x30 -#define CS3_LO_DEC_ADR 0x38 -#define CS3_HI_DEC_ADR 0x40 -#define PCI_IO_LO_DEC_ADR 0x48 -#define PCI_IO_HI_DEC_ADR 0x50 -#define PCI_MEM0_LO_DEC_ADR 0x58 -#define PCI_MEM0_HI_DEC_ADR 0x60 -#define INTERNAL_SPACE_DEC 0x68 -#define BUS_ERR_ADR_LO_CPU 0x70 -#define READONLY0 0x78 -#define PCI_MEM1_LO_DEC_ADR 0x80 -#define PCI_MEM1_HI_DEC_ADR 0x88 -#define RAS0_LO_DEC_ADR 0x400 -#define RAS0_HI_DEC_ADR 0x404 -#define RAS1_LO_DEC_ADR 0x408 -#define RAS1_HI_DEC_ADR 0x40c -#define RAS2_LO_DEC_ADR 0x410 -#define RAS2_HI_DEC_ADR 0x414 -#define RAS3_LO_DEC_ADR 0x418 -#define RAS3_HI_DEC_ADR 0x41c -#define DEV_CS0_LO_DEC_ADR 0x420 -#define DEV_CS0_HI_DEC_ADR 0x424 -#define DEV_CS1_LO_DEC_ADR 0x428 -#define DEV_CS1_HI_DEC_ADR 0x42c -#define DEV_CS2_LO_DEC_ADR 0x430 -#define DEV_CS2_HI_DEC_ADR 0x434 -#define DEV_CS3_LO_DEC_ADR 0x438 -#define DEV_CS3_HI_DEC_ADR 0x43c -#define DEV_BOOTCS_LO_DEC_ADR 0x440 -#define DEV_BOOTCS_HI_DEC_ADR 0x444 -#define DEV_ADR_DEC_ERR 0x470 -#define DRAM_CFG 0x448 -#define DRAM_BANK0_PARMS 0x44c -#define DRAM_BANK1_PARMS 0x450 -#define DRAM_BANK2_PARMS 0x454 -#define DRAM_BANK3_PARMS 0x458 -#define DEV_BANK0_PARMS 0x45c -#define DEV_BANK1_PARMS 0x460 -#define DEV_BANK2_PARMS 0x464 -#define DEV_BANK3_PARMS 0x468 -#define DEV_BOOT_BANK_PARMS 0x46c -#define CH0_DMA_BYTECOUNT 0x800 -#define CH1_DMA_BYTECOUNT 0x804 -#define CH2_DMA_BYTECOUNT 0x808 -#define CH3_DMA_BYTECOUNT 0x80c -#define CH0_DMA_SRC_ADR 0x810 -#define CH1_DMA_SRC_ADR 0x814 -#define CH2_DMA_SRC_ADR 0x818 -#define CH3_DMA_SRC_ADR 0x81c -#define CH0_DMA_DST_ADR 0x820 -#define CH1_DMA_DST_ADR 0x824 -#define CH2_DMA_DST_ADR 0x828 -#define CH3_DMA_DST_ADR 0x82c -#define CH0_NEXT_REC_PTR 0x830 -#define CH1_NEXT_REC_PTR 0x834 -#define CH2_NEXT_REC_PTR 0x838 -#define CH3_NEXT_REC_PTR 0x83c -#define CH0_CTRL 0x840 -#define CH1_CTRL 0x844 -#define CH2_CTRL 0x848 -#define CH3_CTRL 0x84c -#define DMA_ARBITER 0x860 -#define TIMER0 0x850 -#define TIMER1 0x854 -#define TIMER2 0x858 -#define TIMER3 0x85c -#define TIMER_CTRL 0x864 -#define PCI_CMD 0xc00 -#define PCI_TIMEOUT 0xc04 -#define PCI_RAS10_BANK_SIZE 0xc08 -#define PCI_RAS32_BANK_SIZE 0xc0c -#define PCI_CS20_BANK_SIZE 0xc10 -#define PCI_CS3_BANK_SIZE 0xc14 -#define PCI_SERRMASK 0xc28 -#define PCI_INTACK 0xc34 -#define PCI_BAR_EN 0xc3c -#define PCI_CFG_ADR 0xcf8 -#define PCI_CFG_DATA 0xcfc -#define PCI_INTCAUSE 0xc18 -#define PCI_MAST_MASK 0xc1c -#define PCI_PCIMASK 0xc24 -#define BAR_ENABLE_ADR 0xc3c - -/* These are config registers, accessible via PCI space */ -#define PCI_CONFIG_RAS10_BASE_ADR 0x010 -#define PCI_CONFIG_RAS32_BASE_ADR 0x014 -#define PCI_CONFIG_CS20_BASE_ADR 0x018 -#define PCI_CONFIG_CS3_BASE_ADR 0x01c -#define PCI_CONFIG_INT_REG_MM_ADR 0x020 -#define PCI_CONFIG_INT_REG_IO_ADR 0x024 -#define PCI_CONFIG_BOARD_VENDOR 0x02c -#define PCI_CONFIG_ROM_ADR 0x030 -#define PCI_CONFIG_INT_PIN_LINE 0x03c - - - - - -#endif - diff --git a/include/asm-sh/overdrive/io.h b/include/asm-sh/overdrive/io.h deleted file mode 100644 index 0dba700e9643..000000000000 --- a/include/asm-sh/overdrive/io.h +++ /dev/null @@ -1,39 +0,0 @@ -/* - * include/asm-sh/io_od.h - * - * Copyright 2000 Stuart Menefy (stuart.menefy@st.com) - * - * May be copied or modified under the terms of the GNU General Public - * License. See linux/COPYING for more information. - * - * IO functions for an STMicroelectronics Overdrive - */ - -#ifndef _ASM_SH_IO_OD_H -#define _ASM_SH_IO_OD_H - -extern unsigned char od_inb(unsigned long port); -extern unsigned short od_inw(unsigned long port); -extern unsigned int od_inl(unsigned long port); - -extern void od_outb(unsigned char value, unsigned long port); -extern void od_outw(unsigned short value, unsigned long port); -extern void od_outl(unsigned int value, unsigned long port); - -extern unsigned char od_inb_p(unsigned long port); -extern unsigned short od_inw_p(unsigned long port); -extern unsigned int od_inl_p(unsigned long port); -extern void od_outb_p(unsigned char value, unsigned long port); -extern void od_outw_p(unsigned short value, unsigned long port); -extern void od_outl_p(unsigned int value, unsigned long port); - -extern void od_insb(unsigned long port, void *addr, unsigned long count); -extern void od_insw(unsigned long port, void *addr, unsigned long count); -extern void od_insl(unsigned long port, void *addr, unsigned long count); -extern void od_outsb(unsigned long port, const void *addr, unsigned long count); -extern void od_outsw(unsigned long port, const void *addr, unsigned long count); -extern void od_outsl(unsigned long port, const void *addr, unsigned long count); - -extern unsigned long od_isa_port2addr(unsigned long offset); - -#endif /* _ASM_SH_IO_OD_H */ diff --git a/include/asm-sh/overdrive/overdrive.h b/include/asm-sh/overdrive/overdrive.h deleted file mode 100644 index fc746c244f83..000000000000 --- a/include/asm-sh/overdrive/overdrive.h +++ /dev/null @@ -1,88 +0,0 @@ -/* - * Copyright (C) 2000 David J. Mckay (david.mckay@st.com) - * - * May be copied or modified under the terms of the GNU General Public - * License. See linux/COPYING for more information. - * - */ - - -#ifndef __OVERDRIVE_H__ -#define __OVERDRIVE_H__ - -#define OVERDRIVE_INT_CT 0xa3a00000 -#define OVERDRIVE_INT_DT 0xa3b00000 - -#define OVERDRIVE_CTRL 0xa3000000 - -/* Shoving all these bits into the same register is not a good idea. - * As soon as I get a spare moment, I'll change the FPGA and put each - * bit in a separate register - */ - -#define VALID_CTRL_BITS 0x1f - -#define ENABLE_RS232_MASK 0x1e -#define DISABLE_RS232_BIT 0x01 - -#define ENABLE_NMI_MASK 0x1d -#define DISABLE_NMI_BIT 0x02 - -#define RESET_PCI_MASK 0x1b -#define ENABLE_PCI_BIT 0x04 - -#define ENABLE_LED_MASK 0x17 -#define DISABLE_LED_BIT 0x08 - -#define RESET_FPGA_MASK 0x0f -#define ENABLE_FPGA_BIT 0x10 - - -#define FPGA_DCLK_ADDRESS 0xA3C00000 - -#define FPGA_DATA 0x01 /* W */ -#define FPGA_CONFDONE 0x02 /* R */ -#define FPGA_NOT_STATUS 0x04 /* R */ -#define FPGA_INITDONE 0x08 /* R */ - -#define FPGA_TIMEOUT 100000 - - -/* Interrupts for the overdrive. Note that these numbers have - * nothing to do with the actual IRQ numbers they appear on, - * this is all programmable. This is simply the position in the - * INT_CT register. - */ - -#define OVERDRIVE_PCI_INTA 0 -#define OVERDRIVE_PCI_INTB 1 -#define OVERDRIVE_PCI_INTC 2 -#define OVERDRIVE_PCI_INTD 3 -#define OVERDRIVE_GALILEO_INT 4 -#define OVERDRIVE_GALILEO_LOCAL_INT 5 -#define OVERDRIVE_AUDIO_INT 6 -#define OVERDRIVE_KEYBOARD_INT 7 - -/* Which Linux IRQ should we assign to each interrupt source? */ -#define OVERDRIVE_PCI_IRQ1 2 -#ifdef CONFIG_HACKED_NE2K -#define OVERDRIVE_PCI_IRQ2 7 -#else -#define OVERDRIVE_PCI_IRQ2 2 -#undef OVERDRIVE_PCI_INTB -#define OVERDRIVE_PCI_INTB OVERDRIVE_PCI_INTA - -#endif - -/* Put the ESS solo audio chip on IRQ 4 */ -#define OVERDRIVE_ESS_IRQ 4 - -/* Where the memory behind the PCI bus appears */ -#define PCI_DRAM_BASE 0xb7000000 -#define PCI_DRAM_SIZE (16*1024*1024) -#define PCI_DRAM_FINISH (PCI_DRAM_BASE+PCI_DRAM_SIZE-1) - -/* Where the IO region appears in the memory */ -#define PCI_GTIO_BASE 0xb8000000 - -#endif diff --git a/include/asm-sh/sh2000/sh2000.h b/include/asm-sh/sh2000/sh2000.h deleted file mode 100644 index 8d547324d59a..000000000000 --- a/include/asm-sh/sh2000/sh2000.h +++ /dev/null @@ -1,8 +0,0 @@ -#ifndef __ASM_SH_SH2000_SH2000_H -#define __ASM_SH_SH2000_SH2000_H - -/* arch/sh/boards/sh2000/setup.c */ -extern int setup_sh2000(void); - -#endif /* __ASM_SH_SH2000_SH2000_H */ - -- cgit v1.2.3 From bc8fb5d0471473f775378d09db712dcb8eeece75 Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Wed, 27 Sep 2006 18:09:34 +0900 Subject: sh: Solution Engine SH7343 board support. This adds support for the SE7343 board. Signed-off-by: Paul Mundt --- arch/sh/Kconfig | 35 +- arch/sh/Makefile | 1 + arch/sh/boards/se/7343/Makefile | 7 + arch/sh/boards/se/7343/io.c | 275 +++++++++++ arch/sh/boards/se/7343/irq.c | 193 ++++++++ arch/sh/boards/se/7343/led.c | 46 ++ arch/sh/boards/se/7343/setup.c | 84 ++++ arch/sh/configs/se7343_defconfig | 997 +++++++++++++++++++++++++++++++++++++++ arch/sh/tools/mach-types | 1 + include/asm-sh/irq.h | 2 + include/asm-sh/se7343.h | 82 ++++ 11 files changed, 1710 insertions(+), 13 deletions(-) create mode 100644 arch/sh/boards/se/7343/Makefile create mode 100644 arch/sh/boards/se/7343/io.c create mode 100644 arch/sh/boards/se/7343/irq.c create mode 100644 arch/sh/boards/se/7343/led.c create mode 100644 arch/sh/boards/se/7343/setup.c create mode 100644 arch/sh/configs/se7343_defconfig create mode 100644 include/asm-sh/se7343.h (limited to 'include') diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig index 2549bd82c57f..9e5272e84fd8 100644 --- a/arch/sh/Kconfig +++ b/arch/sh/Kconfig @@ -51,18 +51,23 @@ source "init/Kconfig" menu "System type" +config SOLUTION_ENGINE + bool + choice prompt "SuperH system type" default SH_UNKNOWN config SH_SOLUTION_ENGINE bool "SolutionEngine" + select SOLUTION_ENGINE help Select SolutionEngine if configuring for a Hitachi SH7709 or SH7750 evaluation board. config SH_7751_SOLUTION_ENGINE bool "SolutionEngine7751" + select SOLUTION_ENGINE select CPU_SUBTYPE_SH7751 help Select 7751 SolutionEngine if configuring for a Hitachi SH7751 @@ -70,17 +75,27 @@ config SH_7751_SOLUTION_ENGINE config SH_7300_SOLUTION_ENGINE bool "SolutionEngine7300" + select SOLUTION_ENGINE select CPU_SUBTYPE_SH7300 help - Select 7300 SolutionEngine if configuring for a Hitachi SH7300(SH-Mobile V) - evaluation board. + Select 7300 SolutionEngine if configuring for a Hitachi + SH7300(SH-Mobile V) evaluation board. + +config SH_7343_SOLUTION_ENGINE + bool "SolutionEngine7343" + select SOLUTION_ENGINE + select CPU_SUBTYPE_SH7343 + help + Select 7343 SolutionEngine if configuring for a Hitachi + SH7343 (SH-Mobile 3AS) evaluation board. config SH_73180_SOLUTION_ENGINE bool "SolutionEngine73180" - select CPU_SUBTYPE_SH73180 - help - Select 73180 SolutionEngine if configuring for a Hitachi SH73180(SH-Mobile 3) - evaluation board. + select SOLUTION_ENGINE + select CPU_SUBTYPE_SH73180 + help + Select 73180 SolutionEngine if configuring for a Hitachi + SH73180(SH-Mobile 3) evaluation board. config SH_7751_SYSTEMH bool "SystemH7751R" @@ -394,9 +409,7 @@ source "arch/sh/cchips/Kconfig" config HEARTBEAT bool "Heartbeat LED" depends on SH_MPC1211 || SH_SH03 || \ - SH_BIGSUR || \ - SH_7751_SOLUTION_ENGINE || SH_7300_SOLUTION_ENGINE || \ - SH_73180_SOLUTION_ENGINE || SH_SOLUTION_ENGINE || \ + SH_BIGSUR || SOLUTION_ENGINE || \ SH_RTS7751R2D || SH_SH4202_MICRODEV || SH_LANDISK help Use the power-on LED on your machine as a load meter. The exact @@ -431,10 +444,6 @@ config KEXEC support. As of this writing the exact hardware interface is strongly in flux, so no good recommendation can be made. -config PREEMPT - bool "Preemptible Kernel (EXPERIMENTAL)" - depends on EXPERIMENTAL - config SMP bool "Symmetric multi-processing support" ---help--- diff --git a/arch/sh/Makefile b/arch/sh/Makefile index f0fc88e5f1ad..26d62ff51a64 100644 --- a/arch/sh/Makefile +++ b/arch/sh/Makefile @@ -89,6 +89,7 @@ core-$(CONFIG_SH_FPU_EMU) += arch/sh/math-emu/ machdir-$(CONFIG_SH_SOLUTION_ENGINE) := se/770x machdir-$(CONFIG_SH_7751_SOLUTION_ENGINE) := se/7751 machdir-$(CONFIG_SH_7300_SOLUTION_ENGINE) := se/7300 +machdir-$(CONFIG_SH_7343_SOLUTION_ENGINE) := se/7343 machdir-$(CONFIG_SH_73180_SOLUTION_ENGINE) := se/73180 machdir-$(CONFIG_SH_HP6XX) := hp6xx machdir-$(CONFIG_SH_EC3104) := ec3104 diff --git a/arch/sh/boards/se/7343/Makefile b/arch/sh/boards/se/7343/Makefile new file mode 100644 index 000000000000..4291069c0b4f --- /dev/null +++ b/arch/sh/boards/se/7343/Makefile @@ -0,0 +1,7 @@ +# +# Makefile for the 7343 SolutionEngine specific parts of the kernel +# + +obj-y := setup.o io.o irq.o + +obj-$(CONFIG_HEARTBEAT) += led.o diff --git a/arch/sh/boards/se/7343/io.c b/arch/sh/boards/se/7343/io.c new file mode 100644 index 000000000000..646661a146ad --- /dev/null +++ b/arch/sh/boards/se/7343/io.c @@ -0,0 +1,275 @@ +/* + * arch/sh/boards/se/7343/io.c + * + * I/O routine for SH-Mobile3AS 7343 SolutionEngine. + * + */ + +#include +#include +#include +#include + +#define badio(fn, a) panic("bad i/o operation %s for %08lx.", #fn, a) + +struct iop { + unsigned long start, end; + unsigned long base; + struct iop *(*check) (struct iop * p, unsigned long port); + unsigned char (*inb) (struct iop * p, unsigned long port); + unsigned short (*inw) (struct iop * p, unsigned long port); + void (*outb) (struct iop * p, unsigned char value, unsigned long port); + void (*outw) (struct iop * p, unsigned short value, unsigned long port); +}; + +struct iop * +simple_check(struct iop *p, unsigned long port) +{ + static int count; + + if (count < 100) + count++; + + port &= 0xFFFF; + + if ((p->start <= port) && (port <= p->end)) + return p; + else + badio(check, port); +} + +struct iop * +ide_check(struct iop *p, unsigned long port) +{ + if (((0x1f0 <= port) && (port <= 0x1f7)) || (port == 0x3f7)) + return p; + return NULL; +} + +unsigned char +simple_inb(struct iop *p, unsigned long port) +{ + return *(unsigned char *) (p->base + port); +} + +unsigned short +simple_inw(struct iop *p, unsigned long port) +{ + return *(unsigned short *) (p->base + port); +} + +void +simple_outb(struct iop *p, unsigned char value, unsigned long port) +{ + *(unsigned char *) (p->base + port) = value; +} + +void +simple_outw(struct iop *p, unsigned short value, unsigned long port) +{ + *(unsigned short *) (p->base + port) = value; +} + +unsigned char +pcc_inb(struct iop *p, unsigned long port) +{ + unsigned long addr = p->base + port + 0x40000; + unsigned long v; + + if (port & 1) + addr += 0x00400000; + v = *(volatile unsigned char *) addr; + return v; +} + +void +pcc_outb(struct iop *p, unsigned char value, unsigned long port) +{ + unsigned long addr = p->base + port + 0x40000; + + if (port & 1) + addr += 0x00400000; + *(volatile unsigned char *) addr = value; +} + +unsigned char +bad_inb(struct iop *p, unsigned long port) +{ + badio(inb, port); +} + +void +bad_outb(struct iop *p, unsigned char value, unsigned long port) +{ + badio(inw, port); +} + +#ifdef CONFIG_SMC91X +/* MSTLANEX01 LAN at 0xb400:0000 */ +static struct iop laniop = { + .start = 0x00, + .end = 0x0F, + .base = 0x04000000, + .check = simple_check, + .inb = simple_inb, + .inw = simple_inw, + .outb = simple_outb, + .outw = simple_outw, +}; +#endif + +#ifdef CONFIG_NE2000 +/* NE2000 pc card NIC */ +static struct iop neiop = { + .start = 0x280, + .end = 0x29f, + .base = 0xb0600000 + 0x80, /* soft 0x280 -> hard 0x300 */ + .check = simple_check, + .inb = pcc_inb, + .inw = simple_inw, + .outb = pcc_outb, + .outw = simple_outw, +}; +#endif + +#ifdef CONFIG_IDE +/* CF in CF slot */ +static struct iop cfiop = { + .base = 0xb0600000, + .check = ide_check, + .inb = pcc_inb, + .inw = simple_inw, + .outb = pcc_outb, + .outw = simple_outw, +}; +#endif + +static __inline__ struct iop * +port2iop(unsigned long port) +{ + if (0) ; +#if defined(CONFIG_SMC91X) + else if (laniop.check(&laniop, port)) + return &laniop; +#endif +#if defined(CONFIG_NE2000) + else if (neiop.check(&neiop, port)) + return &neiop; +#endif +#if defined(CONFIG_IDE) + else if (cfiop.check(&cfiop, port)) + return &cfiop; +#endif + else + return NULL; +} + +static inline void +delay(void) +{ + ctrl_inw(0xac000000); + ctrl_inw(0xac000000); +} + +unsigned char +sh7343se_inb(unsigned long port) +{ + struct iop *p = port2iop(port); + return (p->inb) (p, port); +} + +unsigned char +sh7343se_inb_p(unsigned long port) +{ + unsigned char v = sh7343se_inb(port); + delay(); + return v; +} + +unsigned short +sh7343se_inw(unsigned long port) +{ + struct iop *p = port2iop(port); + return (p->inw) (p, port); +} + +unsigned int +sh7343se_inl(unsigned long port) +{ + badio(inl, port); +} + +void +sh7343se_outb(unsigned char value, unsigned long port) +{ + struct iop *p = port2iop(port); + (p->outb) (p, value, port); +} + +void +sh7343se_outb_p(unsigned char value, unsigned long port) +{ + sh7343se_outb(value, port); + delay(); +} + +void +sh7343se_outw(unsigned short value, unsigned long port) +{ + struct iop *p = port2iop(port); + (p->outw) (p, value, port); +} + +void +sh7343se_outl(unsigned int value, unsigned long port) +{ + badio(outl, port); +} + +void +sh7343se_insb(unsigned long port, void *addr, unsigned long count) +{ + unsigned char *a = addr; + struct iop *p = port2iop(port); + while (count--) + *a++ = (p->inb) (p, port); +} + +void +sh7343se_insw(unsigned long port, void *addr, unsigned long count) +{ + unsigned short *a = addr; + struct iop *p = port2iop(port); + while (count--) + *a++ = (p->inw) (p, port); +} + +void +sh7343se_insl(unsigned long port, void *addr, unsigned long count) +{ + badio(insl, port); +} + +void +sh7343se_outsb(unsigned long port, const void *addr, unsigned long count) +{ + unsigned char *a = (unsigned char *) addr; + struct iop *p = port2iop(port); + while (count--) + (p->outb) (p, *a++, port); +} + +void +sh7343se_outsw(unsigned long port, const void *addr, unsigned long count) +{ + unsigned short *a = (unsigned short *) addr; + struct iop *p = port2iop(port); + while (count--) + (p->outw) (p, *a++, port); +} + +void +sh7343se_outsl(unsigned long port, const void *addr, unsigned long count) +{ + badio(outsw, port); +} diff --git a/arch/sh/boards/se/7343/irq.c b/arch/sh/boards/se/7343/irq.c new file mode 100644 index 000000000000..b41e3d4ea37c --- /dev/null +++ b/arch/sh/boards/se/7343/irq.c @@ -0,0 +1,193 @@ +/* + * arch/sh/boards/se/7343/irq.c + * + */ + +#include +#include +#include +#include +#include +#include +#include + +static void +disable_intreq_irq(unsigned int irq) +{ + int bit = irq - OFFCHIP_IRQ_BASE; + u16 val; + + val = ctrl_inw(PA_CPLD_IMSK); + val |= 1 << bit; + ctrl_outw(val, PA_CPLD_IMSK); +} + +static void +enable_intreq_irq(unsigned int irq) +{ + int bit = irq - OFFCHIP_IRQ_BASE; + u16 val; + + val = ctrl_inw(PA_CPLD_IMSK); + val &= ~(1 << bit); + ctrl_outw(val, PA_CPLD_IMSK); +} + +static void +mask_and_ack_intreq_irq(unsigned int irq) +{ + disable_intreq_irq(irq); +} + +static unsigned int +startup_intreq_irq(unsigned int irq) +{ + enable_intreq_irq(irq); + return 0; +} + +static void +shutdown_intreq_irq(unsigned int irq) +{ + disable_intreq_irq(irq); +} + +static void +end_intreq_irq(unsigned int irq) +{ + if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS))) + enable_intreq_irq(irq); +} + +static struct hw_interrupt_type intreq_irq_type = { + .typename = "FPGA-IRQ", + .startup = startup_intreq_irq, + .shutdown = shutdown_intreq_irq, + .enable = enable_intreq_irq, + .disable = disable_intreq_irq, + .ack = mask_and_ack_intreq_irq, + .end = end_intreq_irq +}; + +static void +make_intreq_irq(unsigned int irq) +{ + disable_irq_nosync(irq); + irq_desc[irq].handler = &intreq_irq_type; + disable_intreq_irq(irq); +} + +int +shmse_irq_demux(int irq) +{ + int bit; + volatile u16 val; + + if (irq == IRQ5_IRQ) { + /* Read status Register */ + val = ctrl_inw(PA_CPLD_ST); + bit = ffs(val); + if (bit != 0) + return OFFCHIP_IRQ_BASE + bit - 1; + } + return irq; +} + +/* IRQ5 is multiplexed between the following sources: + * 1. PC Card socket + * 2. Extension slot + * 3. USB Controller + * 4. Serial Controller + * + * We configure IRQ5 as a cascade IRQ. + */ +static struct irqaction irq5 = { no_action, 0, CPU_MASK_NONE, "IRQ5-cascade", + NULL, NULL}; + +/* + * Initialize IRQ setting + */ +void __init +init_7343se_IRQ(void) +{ + /* Setup Multiplexed interrupts */ + ctrl_outw(8, PA_CPLD_MODESET); /* Set all CPLD interrupts to active + * low. + */ + /* Mask all CPLD controller interrupts */ + ctrl_outw(0x0fff, PA_CPLD_IMSK); + + /* PC Card interrupts */ + make_intreq_irq(PC_IRQ0); + make_intreq_irq(PC_IRQ1); + make_intreq_irq(PC_IRQ2); + make_intreq_irq(PC_IRQ3); + + /* Extension Slot Interrupts */ + make_intreq_irq(EXT_IRQ0); + make_intreq_irq(EXT_IRQ1); + make_intreq_irq(EXT_IRQ2); + make_intreq_irq(EXT_IRQ3); + + /* USB Controller interrupts */ + make_intreq_irq(USB_IRQ0); + make_intreq_irq(USB_IRQ1); + + /* Serial Controller interrupts */ + make_intreq_irq(UART_IRQ0); + make_intreq_irq(UART_IRQ1); + + /* Setup all external interrupts to be active low */ + ctrl_outw(0xaaaa, INTC_ICR1); + + make_ipr_irq(IRQ5_IRQ, IRQ5_IPR_ADDR+2, IRQ5_IPR_POS, IRQ5_PRIORITY); + setup_irq(IRQ5_IRQ, &irq5); + /* Set port control to use IRQ5 */ + *(u16 *)0xA4050108 &= ~0xc; + + make_ipr_irq(SIOF0_IRQ, SIOF0_IPR_ADDR, SIOF0_IPR_POS, SIOF0_PRIORITY); + make_ipr_irq(VPU_IRQ, VPU_IPR_ADDR, VPU_IPR_POS, 8); + + ctrl_outb(0x0f, INTC_IMCR5); /* enable SCIF IRQ */ + + make_ipr_irq(DMTE0_IRQ, DMA1_IPR_ADDR, DMA1_IPR_POS, DMA1_PRIORITY); + make_ipr_irq(DMTE1_IRQ, DMA1_IPR_ADDR, DMA1_IPR_POS, DMA1_PRIORITY); + make_ipr_irq(DMTE2_IRQ, DMA1_IPR_ADDR, DMA1_IPR_POS, DMA1_PRIORITY); + make_ipr_irq(DMTE3_IRQ, DMA1_IPR_ADDR, DMA1_IPR_POS, DMA1_PRIORITY); + make_ipr_irq(DMTE4_IRQ, DMA2_IPR_ADDR, DMA2_IPR_POS, DMA2_PRIORITY); + make_ipr_irq(DMTE5_IRQ, DMA2_IPR_ADDR, DMA2_IPR_POS, DMA2_PRIORITY); + + /* I2C block */ + make_ipr_irq(IIC0_ALI_IRQ, IIC0_IPR_ADDR, IIC0_IPR_POS, IIC0_PRIORITY); + make_ipr_irq(IIC0_TACKI_IRQ, IIC0_IPR_ADDR, IIC0_IPR_POS, + IIC0_PRIORITY); + make_ipr_irq(IIC0_WAITI_IRQ, IIC0_IPR_ADDR, IIC0_IPR_POS, + IIC0_PRIORITY); + make_ipr_irq(IIC0_DTEI_IRQ, IIC0_IPR_ADDR, IIC0_IPR_POS, IIC0_PRIORITY); + + make_ipr_irq(IIC1_ALI_IRQ, IIC1_IPR_ADDR, IIC1_IPR_POS, IIC1_PRIORITY); + make_ipr_irq(IIC1_TACKI_IRQ, IIC1_IPR_ADDR, IIC1_IPR_POS, + IIC1_PRIORITY); + make_ipr_irq(IIC1_WAITI_IRQ, IIC1_IPR_ADDR, IIC1_IPR_POS, + IIC1_PRIORITY); + make_ipr_irq(IIC1_DTEI_IRQ, IIC1_IPR_ADDR, IIC1_IPR_POS, IIC1_PRIORITY); + + /* SIOF */ + make_ipr_irq(SIOF0_IRQ, SIOF0_IPR_ADDR, SIOF0_IPR_POS, SIOF0_PRIORITY); + + /* SIU */ + make_ipr_irq(SIU_IRQ, SIU_IPR_ADDR, SIU_IPR_POS, SIU_PRIORITY); + + /* VIO interrupt */ + make_ipr_irq(CEU_IRQ, VIO_IPR_ADDR, VIO_IPR_POS, VIO_PRIORITY); + make_ipr_irq(BEU_IRQ, VIO_IPR_ADDR, VIO_IPR_POS, VIO_PRIORITY); + make_ipr_irq(VEU_IRQ, VIO_IPR_ADDR, VIO_IPR_POS, VIO_PRIORITY); + + /*MFI interrupt*/ + + make_ipr_irq(MFI_IRQ, MFI_IPR_ADDR, MFI_IPR_POS, MFI_PRIORITY); + + /* LCD controller */ + make_ipr_irq(LCDC_IRQ, LCDC_IPR_ADDR, LCDC_IPR_POS, LCDC_PRIORITY); + ctrl_outw(0x2000, PA_MRSHPC + 0x0c); /* mrshpc irq enable */ +} diff --git a/arch/sh/boards/se/7343/led.c b/arch/sh/boards/se/7343/led.c new file mode 100644 index 000000000000..6a439cf83e46 --- /dev/null +++ b/arch/sh/boards/se/7343/led.c @@ -0,0 +1,46 @@ +/* + * arch/sh/boards/se/7343/led.c + * + */ + +#include +#include +#include + +/* Cycle the LED's in the clasic Knightrider/Sun pattern */ +void heartbeat_7343se(void) +{ + static unsigned int cnt = 0, period = 0; + volatile unsigned short *p = (volatile unsigned short *) PA_LED; + static unsigned bit = 0, up = 1; + + cnt += 1; + if (cnt < period) { + return; + } + + cnt = 0; + + /* Go through the points (roughly!): + * f(0)=10, f(1)=16, f(2)=20, f(5)=35,f(inf)->110 + */ + period = 110 - ((300 << FSHIFT) / ((avenrun[0] / 5) + (3 << FSHIFT))); + + if (up) { + if (bit == 7) { + bit--; + up = 0; + } else { + bit++; + } + } else { + if (bit == 0) { + bit++; + up = 1; + } else { + bit--; + } + } + *p = 1 << (bit + LED_SHIFT); + +} diff --git a/arch/sh/boards/se/7343/setup.c b/arch/sh/boards/se/7343/setup.c new file mode 100644 index 000000000000..787322291fb3 --- /dev/null +++ b/arch/sh/boards/se/7343/setup.c @@ -0,0 +1,84 @@ +#include +#include +#include +#include +#include +#include + +void heartbeat_7343se(void); +void init_7343se_IRQ(void); + +static struct resource smc91x_resources[] = { + [0] = { + .start = 0x10000000, + .end = 0x1000000F, + .flags = IORESOURCE_MEM, + }, + [1] = { + /* + * shared with other devices via externel + * interrupt controller in FPGA... + */ + .start = EXT_IRQ2, + .end = EXT_IRQ2, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device smc91x_device = { + .name = "smc91x", + .id = 0, + .num_resources = ARRAY_SIZE(smc91x_resources), + .resource = smc91x_resources, +}; + +static struct platform_device *smc91x_platform_devices[] __initdata = { + &smc91x_device, +}; + +static int __init sh7343se_devices_setup(void) +{ + return platform_add_devices(smc91x_platform_devices, + ARRAY_SIZE(smc91x_platform_devices)); +} + +static void __init sh7343se_setup(char **cmdline_p) +{ + device_initcall(sh7343se_devices_setup); +} + +/* + * The Machine Vector + */ +struct sh_machine_vector mv_7343se __initmv = { + .mv_name = "SolutionEngine 7343", + .mv_setup = sh7343se_setup, + .mv_nr_irqs = 108, + .mv_inb = sh7343se_inb, + .mv_inw = sh7343se_inw, + .mv_inl = sh7343se_inl, + .mv_outb = sh7343se_outb, + .mv_outw = sh7343se_outw, + .mv_outl = sh7343se_outl, + + .mv_inb_p = sh7343se_inb_p, + .mv_inw_p = sh7343se_inw, + .mv_inl_p = sh7343se_inl, + .mv_outb_p = sh7343se_outb_p, + .mv_outw_p = sh7343se_outw, + .mv_outl_p = sh7343se_outl, + + .mv_insb = sh7343se_insb, + .mv_insw = sh7343se_insw, + .mv_insl = sh7343se_insl, + .mv_outsb = sh7343se_outsb, + .mv_outsw = sh7343se_outsw, + .mv_outsl = sh7343se_outsl, + + .mv_init_irq = init_7343se_IRQ, + .mv_irq_demux = shmse_irq_demux, +#ifdef CONFIG_HEARTBEAT + .mv_heartbeat = heartbeat_7343se, +#endif +}; +ALIAS_MV(7343se) diff --git a/arch/sh/configs/se7343_defconfig b/arch/sh/configs/se7343_defconfig new file mode 100644 index 000000000000..948e507b52be --- /dev/null +++ b/arch/sh/configs/se7343_defconfig @@ -0,0 +1,997 @@ +# +# Automatically generated make config: don't edit +# Linux kernel version: 2.6.17 +# Mon Aug 7 20:14:44 2006 +# +CONFIG_SUPERH=y +CONFIG_RWSEM_GENERIC_SPINLOCK=y +CONFIG_GENERIC_FIND_NEXT_BIT=y +CONFIG_GENERIC_HWEIGHT=y +CONFIG_GENERIC_HARDIRQS=y +CONFIG_GENERIC_IRQ_PROBE=y +CONFIG_GENERIC_CALIBRATE_DELAY=y + +# +# Code maturity level options +# +CONFIG_EXPERIMENTAL=y +CONFIG_BROKEN_ON_SMP=y +CONFIG_INIT_ENV_ARG_LIMIT=32 + +# +# General setup +# +CONFIG_LOCALVERSION="" +CONFIG_LOCALVERSION_AUTO=y +# CONFIG_SWAP is not set +CONFIG_SYSVIPC=y +CONFIG_POSIX_MQUEUE=y +# CONFIG_BSD_PROCESS_ACCT is not set +CONFIG_SYSCTL=y +# CONFIG_AUDIT is not set +# CONFIG_IKCONFIG is not set +# CONFIG_RELAY is not set +CONFIG_INITRAMFS_SOURCE="" +CONFIG_UID16=y +CONFIG_CC_OPTIMIZE_FOR_SIZE=y +CONFIG_EMBEDDED=y +CONFIG_KALLSYMS=y +# CONFIG_KALLSYMS_EXTRA_PASS is not set +CONFIG_HOTPLUG=y +CONFIG_PRINTK=y +CONFIG_BUG=y +CONFIG_ELF_CORE=y +CONFIG_BASE_FULL=y +# CONFIG_FUTEX is not set +# CONFIG_EPOLL is not set +# CONFIG_SHMEM is not set +CONFIG_SLAB=y +CONFIG_TINY_SHMEM=y +CONFIG_BASE_SMALL=0 +# CONFIG_SLOB is not set +CONFIG_OBSOLETE_INTERMODULE=y + +# +# Loadable module support +# +CONFIG_MODULES=y +CONFIG_MODULE_UNLOAD=y +CONFIG_MODULE_FORCE_UNLOAD=y +# CONFIG_MODVERSIONS is not set +# CONFIG_MODULE_SRCVERSION_ALL is not set +# CONFIG_KMOD is not set + +# +# Block layer +# +# CONFIG_LBD is not set +# CONFIG_BLK_DEV_IO_TRACE is not set +# CONFIG_LSF is not set + +# +# IO Schedulers +# +CONFIG_IOSCHED_NOOP=y +# CONFIG_IOSCHED_AS is not set +CONFIG_IOSCHED_DEADLINE=y +# CONFIG_IOSCHED_CFQ is not set +# CONFIG_DEFAULT_AS is not set +CONFIG_DEFAULT_DEADLINE=y +# CONFIG_DEFAULT_CFQ is not set +# CONFIG_DEFAULT_NOOP is not set +CONFIG_DEFAULT_IOSCHED="deadline" + +# +# System type +# +CONFIG_SOLUTION_ENGINE=y +# CONFIG_SH_SOLUTION_ENGINE is not set +# CONFIG_SH_7751_SOLUTION_ENGINE is not set +# CONFIG_SH_7300_SOLUTION_ENGINE is not set +CONFIG_SH_7343_SOLUTION_ENGINE=y +# CONFIG_SH_73180_SOLUTION_ENGINE is not set +# CONFIG_SH_7751_SYSTEMH is not set +# CONFIG_SH_HP6XX is not set +# CONFIG_SH_EC3104 is not set +# CONFIG_SH_SATURN is not set +# CONFIG_SH_DREAMCAST is not set +# CONFIG_SH_BIGSUR is not set +# CONFIG_SH_MPC1211 is not set +# CONFIG_SH_SH03 is not set +# CONFIG_SH_SECUREEDGE5410 is not set +# CONFIG_SH_HS7751RVOIP is not set +# CONFIG_SH_7710VOIPGW is not set +# CONFIG_SH_RTS7751R2D is not set +# CONFIG_SH_R7780RP is not set +# CONFIG_SH_EDOSK7705 is not set +# CONFIG_SH_SH4202_MICRODEV is not set +# CONFIG_SH_LANDISK is not set +# CONFIG_SH_TITAN is not set +# CONFIG_SH_SHMIN is not set +# CONFIG_SH_UNKNOWN is not set + +# +# Processor selection +# +CONFIG_CPU_SH4=y +CONFIG_CPU_SH4A=y + +# +# SH-2 Processor Support +# +# CONFIG_CPU_SUBTYPE_SH7604 is not set + +# +# SH-3 Processor Support +# +# CONFIG_CPU_SUBTYPE_SH7300 is not set +# CONFIG_CPU_SUBTYPE_SH7705 is not set +# CONFIG_CPU_SUBTYPE_SH7706 is not set +# CONFIG_CPU_SUBTYPE_SH7707 is not set +# CONFIG_CPU_SUBTYPE_SH7708 is not set +# CONFIG_CPU_SUBTYPE_SH7709 is not set +# CONFIG_CPU_SUBTYPE_SH7710 is not set + +# +# SH-4 Processor Support +# +# CONFIG_CPU_SUBTYPE_SH7750 is not set +# CONFIG_CPU_SUBTYPE_SH7091 is not set +# CONFIG_CPU_SUBTYPE_SH7750R is not set +# CONFIG_CPU_SUBTYPE_SH7750S is not set +# CONFIG_CPU_SUBTYPE_SH7751 is not set +# CONFIG_CPU_SUBTYPE_SH7751R is not set +# CONFIG_CPU_SUBTYPE_SH7760 is not set +# CONFIG_CPU_SUBTYPE_SH4_202 is not set + +# +# ST40 Processor Support +# +# CONFIG_CPU_SUBTYPE_ST40STB1 is not set +# CONFIG_CPU_SUBTYPE_ST40GX1 is not set + +# +# SH-4A Processor Support +# +# CONFIG_CPU_SUBTYPE_SH73180 is not set +CONFIG_CPU_SUBTYPE_SH7343=y +# CONFIG_CPU_SUBTYPE_SH7770 is not set +# CONFIG_CPU_SUBTYPE_SH7780 is not set + +# +# Memory management options +# +CONFIG_MMU=y +CONFIG_PAGE_OFFSET=0x80000000 +CONFIG_MEMORY_START=0x0c000000 +CONFIG_MEMORY_SIZE=0x01000000 +CONFIG_32BIT=y +CONFIG_SELECT_MEMORY_MODEL=y +CONFIG_FLATMEM_MANUAL=y +# CONFIG_DISCONTIGMEM_MANUAL is not set +# CONFIG_SPARSEMEM_MANUAL is not set +CONFIG_FLATMEM=y +CONFIG_FLAT_NODE_MEM_MAP=y +# CONFIG_SPARSEMEM_STATIC is not set +CONFIG_SPLIT_PTLOCK_CPUS=4 + +# +# Cache configuration +# +# CONFIG_SH_DIRECT_MAPPED is not set +# CONFIG_SH_WRITETHROUGH is not set +# CONFIG_SH_OCRAM is not set + +# +# Processor features +# +CONFIG_CPU_LITTLE_ENDIAN=y +# CONFIG_SH_FPU is not set +# CONFIG_SH_FPU_EMU is not set +CONFIG_SH_DSP=y +# CONFIG_SH_STORE_QUEUES is not set +CONFIG_CPU_HAS_INTEVT=y +CONFIG_CPU_HAS_SR_RB=y + +# +# Timer support +# +CONFIG_SH_TMU=y +CONFIG_SH_PCLK_FREQ=27000000 + +# +# CPU Frequency scaling +# +# CONFIG_CPU_FREQ is not set + +# +# DMA support +# +# CONFIG_SH_DMA is not set + +# +# Companion Chips +# +# CONFIG_HD6446X_SERIES is not set +CONFIG_HEARTBEAT=y + +# +# Kernel features +# +# CONFIG_HZ_100 is not set +CONFIG_HZ_250=y +# CONFIG_HZ_1000 is not set +CONFIG_HZ=250 +# CONFIG_KEXEC is not set +# CONFIG_SMP is not set +CONFIG_PREEMPT_NONE=y +# CONFIG_PREEMPT_VOLUNTARY is not set +# CONFIG_PREEMPT is not set + +# +# Boot options +# +CONFIG_ZERO_PAGE_OFFSET=0x00001000 +CONFIG_BOOT_LINK_OFFSET=0x00800000 +# CONFIG_UBC_WAKEUP is not set +# CONFIG_CMDLINE_BOOL is not set + +# +# Bus options +# +# CONFIG_PCI is not set + +# +# PCCARD (PCMCIA/CardBus) support +# +# CONFIG_PCCARD is not set + +# +# PCI Hotplug Support +# + +# +# Executable file formats +# +CONFIG_BINFMT_ELF=y +# CONFIG_BINFMT_FLAT is not set +# CONFIG_BINFMT_MISC is not set + +# +# Power management options (EXPERIMENTAL) +# +# CONFIG_PM is not set + +# +# Networking +# +CONFIG_NET=y + +# +# Networking options +# +# CONFIG_NETDEBUG is not set +CONFIG_PACKET=y +CONFIG_PACKET_MMAP=y +CONFIG_UNIX=y +# 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=y +CONFIG_IP_PNP_DHCP=y +# CONFIG_IP_PNP_BOOTP is not set +# CONFIG_IP_PNP_RARP is not set +# CONFIG_NET_IPIP is not set +# CONFIG_NET_IPGRE is not set +# CONFIG_ARPD is not set +CONFIG_SYN_COOKIES=y +# CONFIG_INET_AH is not set +# CONFIG_INET_ESP is not set +# CONFIG_INET_IPCOMP is not set +# CONFIG_INET_XFRM_TUNNEL is not set +# CONFIG_INET_TUNNEL is not set +# CONFIG_INET_DIAG is not set +# CONFIG_TCP_CONG_ADVANCED is not set +CONFIG_TCP_CONG_BIC=y +# CONFIG_IPV6 is not set +# CONFIG_INET6_XFRM_TUNNEL is not set +# CONFIG_INET6_TUNNEL is not set +# CONFIG_NETFILTER is not set + +# +# DCCP Configuration (EXPERIMENTAL) +# +# CONFIG_IP_DCCP is not set + +# +# SCTP Configuration (EXPERIMENTAL) +# +# CONFIG_IP_SCTP is not set + +# +# TIPC Configuration (EXPERIMENTAL) +# +# CONFIG_TIPC is not set +# CONFIG_ATM 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_X25 is not set +# CONFIG_LAPB is not set +# CONFIG_NET_DIVERT is not set +# CONFIG_ECONET is not set +# CONFIG_WAN_ROUTER is not set + +# +# QoS and/or fair queueing +# +# CONFIG_NET_SCHED 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 +# CONFIG_IEEE80211 is not set + +# +# Device Drivers +# + +# +# Generic Driver Options +# +CONFIG_STANDALONE=y +CONFIG_PREVENT_FIRMWARE_BUILD=y +CONFIG_FW_LOADER=y + +# +# Connector - unified userspace <-> kernelspace linker +# +# CONFIG_CONNECTOR is not set + +# +# Memory Technology Devices (MTD) +# +CONFIG_MTD=y +# CONFIG_MTD_DEBUG is not set +CONFIG_MTD_CONCAT=y +CONFIG_MTD_PARTITIONS=y +# CONFIG_MTD_REDBOOT_PARTS is not set +# CONFIG_MTD_CMDLINE_PARTS is not set + +# +# User Modules And Translation Layers +# +CONFIG_MTD_CHAR=y +CONFIG_MTD_BLOCK=y +# CONFIG_FTL is not set +# CONFIG_NFTL is not set +# CONFIG_INFTL is not set +# CONFIG_RFD_FTL is not set + +# +# RAM/ROM/Flash chip drivers +# +CONFIG_MTD_CFI=y +# CONFIG_MTD_JEDECPROBE is not set +CONFIG_MTD_GEN_PROBE=y +# CONFIG_MTD_CFI_ADV_OPTIONS 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_CFI_INTELEXT is not set +CONFIG_MTD_CFI_AMDSTD=y +# CONFIG_MTD_CFI_STAA is not set +CONFIG_MTD_CFI_UTIL=y +CONFIG_MTD_RAM=y +# CONFIG_MTD_ROM is not set +# CONFIG_MTD_ABSENT is not set +# CONFIG_MTD_OBSOLETE_CHIPS is not set + +# +# Mapping drivers for chip access +# +# CONFIG_MTD_COMPLEX_MAPPINGS is not set +# CONFIG_MTD_PHYSMAP is not set +# CONFIG_MTD_SOLUTIONENGINE is not set +# CONFIG_MTD_PLATRAM is not set + +# +# Self-contained MTD device drivers +# +# CONFIG_MTD_SLRAM is not set +# CONFIG_MTD_PHRAM is not set +# CONFIG_MTD_MTDRAM is not set +# CONFIG_MTD_BLOCK2MTD 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 + +# +# OneNAND Flash Device Drivers +# +# CONFIG_MTD_ONENAND is not set + +# +# Parallel port support +# +# CONFIG_PARPORT is not set + +# +# Plug and Play support +# + +# +# Block devices +# +# 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_RAM is not set +# CONFIG_BLK_DEV_INITRD is not set +# CONFIG_CDROM_PKTCDVD is not set +# CONFIG_ATA_OVER_ETH is not set + +# +# ATA/ATAPI/MFM/RLL support +# +# CONFIG_IDE is not set + +# +# SCSI device support +# +# CONFIG_RAID_ATTRS is not set +# 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_NETDEVICES=y +# CONFIG_DUMMY is not set +# CONFIG_BONDING is not set +# CONFIG_EQUALIZER is not set +# CONFIG_TUN is not set + +# +# PHY device support +# +# CONFIG_PHYLIB is not set + +# +# Ethernet (10 or 100Mbit) +# +CONFIG_NET_ETHERNET=y +CONFIG_MII=y +# CONFIG_STNIC is not set +CONFIG_SMC91X=y +# CONFIG_NE2000 is not set + +# +# Ethernet (1000 Mbit) +# + +# +# Ethernet (10000 Mbit) +# + +# +# Token Ring devices +# + +# +# Wireless LAN (non-hamradio) +# +# CONFIG_NET_RADIO is not set + +# +# Wan interfaces +# +# CONFIG_WAN is not set +# CONFIG_PPP is not set +# CONFIG_SLIP is not set +# CONFIG_SHAPER is not set +# CONFIG_NETCONSOLE is not set +# CONFIG_NETPOLL is not set +# CONFIG_NET_POLL_CONTROLLER is not set + +# +# ISDN subsystem +# +# CONFIG_ISDN is not set + +# +# Telephony Support +# +# CONFIG_PHONE 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=y +CONFIG_VT_CONSOLE=y +CONFIG_HW_CONSOLE=y +# CONFIG_SERIAL_NONSTANDARD is not set + +# +# Serial drivers +# +# CONFIG_SERIAL_8250 is not set + +# +# Non-8250 serial port support +# +CONFIG_SERIAL_SH_SCI=y +CONFIG_SERIAL_SH_SCI_NR_UARTS=2 +CONFIG_SERIAL_SH_SCI_CONSOLE=y +CONFIG_SERIAL_CORE=y +CONFIG_SERIAL_CORE_CONSOLE=y +# CONFIG_UNIX98_PTYS is not set +CONFIG_LEGACY_PTYS=y +CONFIG_LEGACY_PTY_COUNT=256 + +# +# 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 +# +# CONFIG_TCG_TPM is not set +# CONFIG_TELCLOCK is not set + +# +# I2C support +# +CONFIG_I2C=y +CONFIG_I2C_CHARDEV=y + +# +# I2C Algorithms +# +# CONFIG_I2C_ALGOBIT is not set +# CONFIG_I2C_ALGOPCF is not set +# CONFIG_I2C_ALGOPCA is not set + +# +# I2C Hardware Bus support +# +# CONFIG_I2C_PARPORT_LIGHT is not set +# CONFIG_I2C_STUB is not set +# CONFIG_I2C_PCA_ISA is not set +CONFIG_I2C_SH7343=y + +# +# Miscellaneous I2C Chip support +# +# CONFIG_SENSORS_DS1337 is not set +# CONFIG_SENSORS_DS1374 is not set +# CONFIG_SENSORS_EEPROM is not set +# CONFIG_SENSORS_PCF8574 is not set +# CONFIG_SENSORS_PCA9539 is not set +# CONFIG_SENSORS_PCF8591 is not set +# CONFIG_SENSORS_MAX6875 is not set +# CONFIG_I2C_DEBUG_CORE is not set +# CONFIG_I2C_DEBUG_ALGO is not set +# CONFIG_I2C_DEBUG_BUS is not set +# CONFIG_I2C_DEBUG_CHIP is not set + +# +# SPI support +# +# CONFIG_SPI is not set +# CONFIG_SPI_MASTER is not set + +# +# Dallas's 1-wire bus +# +# CONFIG_W1 is not set + +# +# Hardware Monitoring support +# +# CONFIG_HWMON is not set +# CONFIG_HWMON_VID is not set + +# +# Misc devices +# + +# +# Multimedia devices +# +CONFIG_VIDEO_DEV=y +CONFIG_VIDEO_V4L1=y +CONFIG_VIDEO_V4L1_COMPAT=y +CONFIG_VIDEO_V4L2=y + +# +# Video Capture Adapters +# + +# +# Video Capture Adapters +# +# CONFIG_VIDEO_ADV_DEBUG is not set +# CONFIG_VIDEO_VIVI is not set +# CONFIG_VIDEO_CPIA is not set +# CONFIG_VIDEO_SAA5246A is not set +# CONFIG_VIDEO_SAA5249 is not set +# CONFIG_TUNER_3036 is not set +# CONFIG_VIDEO_OVCAMCHIP is not set + +# +# Encoders and Decoders +# +# CONFIG_VIDEO_MSP3400 is not set +# CONFIG_VIDEO_CS53L32A is not set +# CONFIG_VIDEO_WM8775 is not set +# CONFIG_VIDEO_WM8739 is not set +# CONFIG_VIDEO_CX25840 is not set +# CONFIG_VIDEO_SAA711X is not set +# CONFIG_VIDEO_SAA7127 is not set +# CONFIG_VIDEO_UPD64031A is not set +# CONFIG_VIDEO_UPD64083 is not set + +# +# Radio Adapters +# +# CONFIG_RADIO_MAESTRO is not set + +# +# Digital Video Broadcasting Devices +# +# CONFIG_DVB is not set + +# +# Graphics support +# +CONFIG_FB=y +# CONFIG_FB_CFB_FILLRECT is not set +# CONFIG_FB_CFB_COPYAREA is not set +# CONFIG_FB_CFB_IMAGEBLIT is not set +# CONFIG_FB_MACMODES is not set +CONFIG_FB_FIRMWARE_EDID=y +# CONFIG_FB_MODE_HELPERS is not set +# CONFIG_FB_TILEBLITTING is not set +# CONFIG_FB_EPSON1355 is not set +# CONFIG_FB_S1D13XXX is not set +# CONFIG_FB_VIRTUAL is not set + +# +# Console display driver support +# +CONFIG_DUMMY_CONSOLE=y +# CONFIG_FRAMEBUFFER_CONSOLE is not set + +# +# Logo configuration +# +# CONFIG_LOGO is not set +# CONFIG_BACKLIGHT_LCD_SUPPORT is not set + +# +# Sound +# +CONFIG_SOUND=y + +# +# Advanced Linux Sound Architecture +# +CONFIG_SND=y +CONFIG_SND_TIMER=y +CONFIG_SND_PCM=y +CONFIG_SND_SEQUENCER=y +# CONFIG_SND_SEQ_DUMMY is not set +CONFIG_SND_OSSEMUL=y +# CONFIG_SND_MIXER_OSS is not set +CONFIG_SND_PCM_OSS=y +CONFIG_SND_PCM_OSS_PLUGINS=y +# CONFIG_SND_SEQUENCER_OSS is not set +# CONFIG_SND_DYNAMIC_MINORS is not set +CONFIG_SND_SUPPORT_OLD_API=y +CONFIG_SND_VERBOSE_PROCFS=y +# CONFIG_SND_VERBOSE_PRINTK is not set +# CONFIG_SND_DEBUG is not set + +# +# Generic devices +# +# CONFIG_SND_DUMMY is not set +# CONFIG_SND_VIRMIDI is not set +# CONFIG_SND_MTPAV is not set +# CONFIG_SND_SERIAL_U16550 is not set +# CONFIG_SND_MPU401 is not set + +# +# SuperH devices +# +CONFIG_SH7343_SIU=m +CONFIG_AK4537_CODEC=y + +# +# Open Sound System +# +# CONFIG_SOUND_PRIME is not set + +# +# USB support +# +# CONFIG_USB_ARCH_HAS_HCD is not set +# CONFIG_USB_ARCH_HAS_OHCI is not set +# CONFIG_USB_ARCH_HAS_EHCI is not set + +# +# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support' +# + +# +# USB Gadget Support +# +# CONFIG_USB_GADGET is not set + +# +# MMC/SD Card support +# +# CONFIG_MMC is not set + +# +# LED devices +# +# CONFIG_NEW_LEDS is not set + +# +# LED drivers +# + +# +# LED Triggers +# + +# +# InfiniBand support +# + +# +# EDAC - error detection and reporting (RAS) (EXPERIMENTAL) +# + +# +# Real Time Clock +# +# CONFIG_RTC_CLASS is not set + +# +# File systems +# +# CONFIG_EXT2_FS is not set +# CONFIG_EXT3_FS is not set +# CONFIG_REISERFS_FS is not set +# CONFIG_JFS_FS is not set +# CONFIG_FS_POSIX_ACL is not set +# CONFIG_XFS_FS is not set +# CONFIG_OCFS2_FS is not set +# CONFIG_MINIX_FS is not set +# CONFIG_ROMFS_FS is not set +# CONFIG_INOTIFY is not set +# CONFIG_QUOTA is not set +# CONFIG_DNOTIFY is not set +# CONFIG_AUTOFS_FS is not set +# CONFIG_AUTOFS4_FS is not set +# CONFIG_FUSE_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_PROC_KCORE is not set +CONFIG_SYSFS=y +CONFIG_TMPFS=y +# CONFIG_HUGETLBFS is not set +# CONFIG_HUGETLB_PAGE is not set +CONFIG_RAMFS=y +# CONFIG_CONFIGFS_FS is not set + +# +# Miscellaneous filesystems +# +# CONFIG_ADFS_FS is not set +# CONFIG_AFFS_FS is not set +# CONFIG_HFS_FS is not set +# CONFIG_HFSPLUS_FS is not set +# CONFIG_BEFS_FS is not set +# CONFIG_BFS_FS is not set +# CONFIG_EFS_FS is not set +# CONFIG_JFFS_FS is not set +CONFIG_JFFS2_FS=y +CONFIG_JFFS2_FS_DEBUG=0 +CONFIG_JFFS2_FS_WRITEBUFFER=y +# CONFIG_JFFS2_SUMMARY is not set +# CONFIG_JFFS2_COMPRESSION_OPTIONS is not set +CONFIG_JFFS2_ZLIB=y +CONFIG_JFFS2_RTIME=y +# CONFIG_JFFS2_RUBIN 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_NFS_V4 is not set +# CONFIG_NFS_DIRECTIO is not set +CONFIG_NFSD=y +# CONFIG_NFSD_V3 is not set +# CONFIG_NFSD_TCP is not set +CONFIG_ROOT_NFS=y +CONFIG_LOCKD=y +CONFIG_LOCKD_V4=y +CONFIG_EXPORTFS=y +CONFIG_NFS_COMMON=y +CONFIG_SUNRPC=y +# CONFIG_RPCSEC_GSS_KRB5 is not set +# CONFIG_RPCSEC_GSS_SPKM3 is not set +# CONFIG_SMB_FS is not set +# CONFIG_CIFS is not set +# CONFIG_NCP_FS is not set +# CONFIG_CODA_FS is not set +# CONFIG_AFS_FS is not set +# CONFIG_9P_FS is not set + +# +# Partition Types +# +# CONFIG_PARTITION_ADVANCED is not set +CONFIG_MSDOS_PARTITION=y + +# +# Native Language Support +# +# CONFIG_NLS is not set + +# +# Profiling support +# +# CONFIG_PROFILING is not set + +# +# Kernel hacking +# +# CONFIG_PRINTK_TIME is not set +# CONFIG_MAGIC_SYSRQ is not set +# CONFIG_DEBUG_KERNEL is not set +CONFIG_LOG_BUF_SHIFT=14 +# CONFIG_DEBUG_BUGVERBOSE is not set +# CONFIG_DEBUG_FS is not set +# CONFIG_SH_STANDARD_BIOS is not set +# CONFIG_EARLY_SCIF_CONSOLE is not set +# CONFIG_KGDB 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_CRC16 is not set +CONFIG_CRC32=y +# CONFIG_LIBCRC32C is not set +CONFIG_ZLIB_INFLATE=y +CONFIG_ZLIB_DEFLATE=y diff --git a/arch/sh/tools/mach-types b/arch/sh/tools/mach-types index 06df309f1a6d..ac57638977ee 100644 --- a/arch/sh/tools/mach-types +++ b/arch/sh/tools/mach-types @@ -8,6 +8,7 @@ SE SH_SOLUTION_ENGINE 7751SE SH_7751_SOLUTION_ENGINE 7300SE SH_7300_SOLUTION_ENGINE +7343SE SH_7343_SOLUTION_ENGINE 73180SE SH_73180_SOLUTION_ENGINE 7751SYSTEMH SH_7751_SYSTEMH HP6XX SH_HP6XX diff --git a/include/asm-sh/irq.h b/include/asm-sh/irq.h index 00886f9adb4d..dd05e102fc0e 100644 --- a/include/asm-sh/irq.h +++ b/include/asm-sh/irq.h @@ -316,6 +316,8 @@ # define OFFCHIP_NR_IRQS 4 #elif defined(CONFIG_SH_R7780RP) # define OFFCHIP_NR_IRQS 16 +#elif defined(CONFIG_SH_7343_SOLUTION_ENGINE) +# define OFFCHIP_NR_IRQS 12 #elif defined(CONFIG_SH_UNKNOWN) # define OFFCHIP_NR_IRQS 16 /* Must also be last */ #else diff --git a/include/asm-sh/se7343.h b/include/asm-sh/se7343.h new file mode 100644 index 000000000000..e7914a54aa96 --- /dev/null +++ b/include/asm-sh/se7343.h @@ -0,0 +1,82 @@ +#ifndef __ASM_SH_HITACHI_SE7343_H +#define __ASM_SH_HITACHI_SE7343_H + +/* + * include/asm-sh/se/se7343.h + * + * Copyright (C) 2003 Takashi Kusuda + * + * SH-Mobile SolutionEngine 7343 support + */ + +/* Box specific addresses. */ + +/* Area 0 */ +#define PA_ROM 0x00000000 /* EPROM */ +#define PA_ROM_SIZE 0x00400000 /* EPROM size 4M byte(Actually 2MB) */ +#define PA_FROM 0x00400000 /* Flash ROM */ +#define PA_FROM_SIZE 0x00400000 /* Flash size 4M byte */ +#define PA_SRAM 0x00800000 /* SRAM */ +#define PA_FROM_SIZE 0x00400000 /* SRAM size 4M byte */ +/* Area 1 */ +#define PA_EXT1 0x04000000 +#define PA_EXT1_SIZE 0x04000000 +/* Area 2 */ +#define PA_EXT2 0x08000000 +#define PA_EXT2_SIZE 0x04000000 +/* Area 3 */ +#define PA_SDRAM 0x0c000000 +#define PA_SDRAM_SIZE 0x04000000 +/* Area 4 */ +#define PA_PCIC 0x10000000 /* MR-SHPC-01 PCMCIA */ +#define PA_MRSHPC 0xb03fffe0 /* MR-SHPC-01 PCMCIA controller */ +#define PA_MRSHPC_MW1 0xb0400000 /* MR-SHPC-01 memory window base */ +#define PA_MRSHPC_MW2 0xb0500000 /* MR-SHPC-01 attribute window base */ +#define PA_MRSHPC_IO 0xb0600000 /* MR-SHPC-01 I/O window base */ +#define MRSHPC_OPTION (PA_MRSHPC + 6) +#define MRSHPC_CSR (PA_MRSHPC + 8) +#define MRSHPC_ISR (PA_MRSHPC + 10) +#define MRSHPC_ICR (PA_MRSHPC + 12) +#define MRSHPC_CPWCR (PA_MRSHPC + 14) +#define MRSHPC_MW0CR1 (PA_MRSHPC + 16) +#define MRSHPC_MW1CR1 (PA_MRSHPC + 18) +#define MRSHPC_IOWCR1 (PA_MRSHPC + 20) +#define MRSHPC_MW0CR2 (PA_MRSHPC + 22) +#define MRSHPC_MW1CR2 (PA_MRSHPC + 24) +#define MRSHPC_IOWCR2 (PA_MRSHPC + 26) +#define MRSHPC_CDCR (PA_MRSHPC + 28) +#define MRSHPC_PCIC_INFO (PA_MRSHPC + 30) +#define PA_LED 0xb0C00000 /* LED */ +#define LED_SHIFT 0 +#define PA_DIPSW 0xb0900000 /* Dip switch 31 */ +#define PA_CPLD_MODESET 0xb1400004 /* CPLD Mode set register */ +#define PA_CPLD_ST 0xb1400008 /* CPLD Interrupt status register */ +#define PA_CPLD_IMSK 0xb140000a /* CPLD Interrupt mask register */ +/* Area 5 */ +#define PA_EXT5 0x14000000 +#define PA_EXT5_SIZE 0x04000000 +/* Area 6 */ +#define PA_LCD1 0xb8000000 +#define PA_LCD2 0xb8800000 + +#define __IO_PREFIX sh7343se +#include + +/* External Multiplexed interrupts */ +#define PC_IRQ0 OFFCHIP_IRQ_BASE +#define PC_IRQ1 (PC_IRQ0 + 1) +#define PC_IRQ2 (PC_IRQ1 + 1) +#define PC_IRQ3 (PC_IRQ2 + 1) + +#define EXT_IRQ0 (PC_IRQ3 + 1) +#define EXT_IRQ1 (EXT_IRQ0 + 1) +#define EXT_IRQ2 (EXT_IRQ1 + 1) +#define EXT_IRQ3 (EXT_IRQ2 + 1) + +#define USB_IRQ0 (EXT_IRQ3 + 1) +#define USB_IRQ1 (USB_IRQ0 + 1) + +#define UART_IRQ0 (USB_IRQ1 + 1) +#define UART_IRQ1 (UART_IRQ0 + 1) + +#endif /* __ASM_SH_HITACHI_SE7343_H */ -- cgit v1.2.3 From 2c7834a6f15fe6c50ed4766f1bb6f9183b9e2740 Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Wed, 27 Sep 2006 18:17:31 +0900 Subject: sh: machvec rework. Some more machvec overhauling and setup code cleanup. Kill off get_system_type() and platform_setup(), we can do these both through the machvec. While we're add it, kill off more useless mach.c's and drop some legacy cruft from setup.c. Signed-off-by: Paul Mundt --- arch/sh/boards/bigsur/setup.c | 47 +++++------- arch/sh/boards/dreamcast/setup.c | 34 ++++----- arch/sh/boards/ec3104/setup.c | 49 +++++-------- arch/sh/boards/hp6xx/Makefile | 4 +- arch/sh/boards/hp6xx/setup.c | 47 ++++++++++-- arch/sh/boards/landisk/setup.c | 92 ++++++++++++----------- arch/sh/boards/mpc1211/setup.c | 42 +++++------ arch/sh/boards/renesas/edosk7705/setup.c | 29 ++------ arch/sh/boards/renesas/hs7751rvoip/setup.c | 96 +++++++++++------------- arch/sh/boards/renesas/r7780rp/setup.c | 83 +++++++++++---------- arch/sh/boards/renesas/rts7751r2d/Makefile | 4 +- arch/sh/boards/renesas/rts7751r2d/mach.c | 66 ----------------- arch/sh/boards/renesas/rts7751r2d/setup.c | 62 ++++++++++++++-- arch/sh/boards/renesas/systemh/setup.c | 16 +--- arch/sh/boards/saturn/setup.c | 14 +--- arch/sh/boards/se/7300/setup.c | 17 +---- arch/sh/boards/se/73180/setup.c | 17 +---- arch/sh/boards/se/770x/Makefile | 3 +- arch/sh/boards/se/770x/mach.c | 62 ---------------- arch/sh/boards/se/770x/setup.c | 61 ++++++++++++---- arch/sh/boards/se/7751/Makefile | 3 +- arch/sh/boards/se/7751/mach.c | 48 ------------ arch/sh/boards/se/7751/setup.c | 103 ++++++++++---------------- arch/sh/boards/sh03/setup.c | 26 +++---- arch/sh/boards/shmin/setup.c | 10 +-- arch/sh/boards/snapgear/setup.c | 22 ++---- arch/sh/boards/superh/microdev/setup.c | 113 +++++++++++++---------------- arch/sh/boards/titan/setup.c | 13 +--- arch/sh/boards/unknown/setup.c | 13 +--- arch/sh/kernel/setup.c | 54 +++----------- include/asm-sh/machvec.h | 7 +- 31 files changed, 481 insertions(+), 776 deletions(-) delete mode 100644 arch/sh/boards/renesas/rts7751r2d/mach.c delete mode 100644 arch/sh/boards/se/770x/mach.c delete mode 100644 arch/sh/boards/se/7751/mach.c (limited to 'include') diff --git a/arch/sh/boards/bigsur/setup.c b/arch/sh/boards/bigsur/setup.c index dfeede9da50f..9711c20fc9e4 100644 --- a/arch/sh/boards/bigsur/setup.c +++ b/arch/sh/boards/bigsur/setup.c @@ -41,31 +41,7 @@ // Big Sur Init Routines /*===========================================================*/ -const char *get_system_type(void) -{ - return "Big Sur"; -} - -/* - * The Machine Vector - */ -extern void heartbeat_bigsur(void); -extern void init_bigsur_IRQ(void); - -struct sh_machine_vector mv_bigsur __initmv = { - .mv_nr_irqs = NR_IRQS, // Defined in - - .mv_isa_port2addr = bigsur_isa_port2addr, - .mv_irq_demux = bigsur_irq_demux, - - .mv_init_irq = init_bigsur_IRQ, -#ifdef CONFIG_HEARTBEAT - .mv_heartbeat = heartbeat_bigsur, -#endif -}; -ALIAS_MV(bigsur) - -int __init platform_setup(void) +static void __init bigsur_setup(char **cmdline_p) { /* Mask all 2nd level IRQ's */ outb(-1,BIGSUR_IMR0); @@ -89,7 +65,24 @@ int __init platform_setup(void) outw(1, BIGSUR_ETHR+0xe); /* set the IO port to BIGSUR_ETHER_IOPORT */ outw(BIGSUR_ETHER_IOPORT<<3, BIGSUR_ETHR+0x2); - - return 0; } +/* + * The Machine Vector + */ +extern void heartbeat_bigsur(void); +extern void init_bigsur_IRQ(void); + +struct sh_machine_vector mv_bigsur __initmv = { + .mv_name = "Big Sur", + .mv_setup = bigsur_setup, + + .mv_isa_port2addr = bigsur_isa_port2addr, + .mv_irq_demux = bigsur_irq_demux, + + .mv_init_irq = init_bigsur_IRQ, +#ifdef CONFIG_HEARTBEAT + .mv_heartbeat = heartbeat_bigsur, +#endif +}; +ALIAS_MV(bigsur) diff --git a/arch/sh/boards/dreamcast/setup.c b/arch/sh/boards/dreamcast/setup.c index a00ac94beb05..f13017eeeb27 100644 --- a/arch/sh/boards/dreamcast/setup.c +++ b/arch/sh/boards/dreamcast/setup.c @@ -22,7 +22,6 @@ #include #include #include - #include #include #include @@ -37,24 +36,7 @@ extern int systemasic_irq_demux(int); void *dreamcast_consistent_alloc(struct device *, size_t, dma_addr_t *, gfp_t); int dreamcast_consistent_free(struct device *, size_t, void *, dma_addr_t); -const char *get_system_type(void) -{ - return "Sega Dreamcast"; -} - -struct sh_machine_vector mv_dreamcast __initmv = { - .mv_nr_irqs = NR_IRQS, - - .mv_irq_demux = systemasic_irq_demux, - -#ifdef CONFIG_PCI - .mv_consistent_alloc = dreamcast_consistent_alloc, - .mv_consistent_free = dreamcast_consistent_free, -#endif -}; -ALIAS_MV(dreamcast) - -int __init platform_setup(void) +static void __init dreamcast_setup(char **cmdline_p) { int i; @@ -76,6 +58,16 @@ int __init platform_setup(void) if (gapspci_init() < 0) printk(KERN_WARNING "GAPSPCI was not detected.\n"); #endif - - return 0; } + +struct sh_machine_vector mv_dreamcast __initmv = { + .mv_name = "Sega Dreamcast", + .mv_setup = dreamcast_setup, + .mv_irq_demux = systemasic_irq_demux, + +#ifdef CONFIG_PCI + .mv_consistent_alloc = dreamcast_consistent_alloc, + .mv_consistent_free = dreamcast_consistent_free, +#endif +}; +ALIAS_MV(dreamcast) diff --git a/arch/sh/boards/ec3104/setup.c b/arch/sh/boards/ec3104/setup.c index 4b3ef16a0e96..902bc975a13e 100644 --- a/arch/sh/boards/ec3104/setup.c +++ b/arch/sh/boards/ec3104/setup.c @@ -21,22 +21,36 @@ #include #include #include - #include #include #include #include -const char *get_system_type(void) +static void __init ec3104_setup(char **cmdline_p) { - return "EC3104"; + char str[8]; + int i; + + for (i=0; i<8; i++) + str[i] = ctrl_readb(EC3104_BASE + i); + + for (i = EC3104_IRQBASE; i < EC3104_IRQBASE + 32; i++) + irq_desc[i].handler = &ec3104_int; + + printk("initializing EC3104 \"%.8s\" at %08x, IRQ %d, IRQ base %d\n", + str, EC3104_BASE, EC3104_IRQ, EC3104_IRQBASE); + + /* mask all interrupts. this should have been done by the boot + * loader for us but we want to be sure ... */ + ctrl_writel(0xffffffff, EC3104_IMR); } /* * The Machine Vector */ - struct sh_machine_vector mv_ec3104 __initmv = { + .mv_name = "EC3104", + .mv_setup = ec3104_setup, .mv_nr_irqs = 96, .mv_inb = ec3104_inb, @@ -48,31 +62,4 @@ struct sh_machine_vector mv_ec3104 __initmv = { .mv_irq_demux = ec3104_irq_demux, }; - ALIAS_MV(ec3104) - -int __init platform_setup(void) -{ - char str[8]; - int i; - - if (0) - return 0; - - for (i=0; i<8; i++) - str[i] = ctrl_readb(EC3104_BASE + i); - - for (i = EC3104_IRQBASE; i < EC3104_IRQBASE + 32; i++) - irq_desc[i].chip = &ec3104_int; - - printk("initializing EC3104 \"%.8s\" at %08x, IRQ %d, IRQ base %d\n", - str, EC3104_BASE, EC3104_IRQ, EC3104_IRQBASE); - - - /* mask all interrupts. this should have been done by the boot - * loader for us but we want to be sure ... */ - ctrl_writel(0xffffffff, EC3104_IMR); - - return 0; -} - diff --git a/arch/sh/boards/hp6xx/Makefile b/arch/sh/boards/hp6xx/Makefile index fdf98ffcf437..ff1b7f5b4e91 100644 --- a/arch/sh/boards/hp6xx/Makefile +++ b/arch/sh/boards/hp6xx/Makefile @@ -2,8 +2,6 @@ # Makefile for the HP6xx specific parts of the kernel # -obj-y := mach.o setup.o +obj-y := setup.o obj-$(CONFIG_PM) += pm.o pm_wakeup.o obj-$(CONFIG_APM) += hp6xx_apm.o - - diff --git a/arch/sh/boards/hp6xx/setup.c b/arch/sh/boards/hp6xx/setup.c index 629016bec809..60ab17ad6054 100644 --- a/arch/sh/boards/hp6xx/setup.c +++ b/arch/sh/boards/hp6xx/setup.c @@ -19,12 +19,7 @@ #define SCPCR 0xa4000116 #define SCPDR 0xa4000136 -const char *get_system_type(void) -{ - return "HP6xx"; -} - -int __init platform_setup(void) +static void __init hp6xx_setup(char **cmdline_p) { u8 v8; u16 v; @@ -64,6 +59,42 @@ int __init platform_setup(void) v &= ~SCPCR_TS_MASK; v |= SCPCR_TS_ENABLE; ctrl_outw(v, SCPCR); - - return 0; } + +/* + * XXX: This is stupid, we should have a generic machine vector for the cchips + * and just wrap the platform setup code in to this, as it's the only thing + * that ends up being different. + */ +struct sh_machine_vector mv_hp6xx __initmv = { + .mv_name = "hp6xx", + .mv_setup = hp6xx_setup, + .mv_nr_irqs = HD64461_IRQBASE + HD64461_IRQ_NUM, + + .mv_inb = hd64461_inb, + .mv_inw = hd64461_inw, + .mv_inl = hd64461_inl, + .mv_outb = hd64461_outb, + .mv_outw = hd64461_outw, + .mv_outl = hd64461_outl, + + .mv_inb_p = hd64461_inb_p, + .mv_inw_p = hd64461_inw, + .mv_inl_p = hd64461_inl, + .mv_outb_p = hd64461_outb_p, + .mv_outw_p = hd64461_outw, + .mv_outl_p = hd64461_outl, + + .mv_insb = hd64461_insb, + .mv_insw = hd64461_insw, + .mv_insl = hd64461_insl, + .mv_outsb = hd64461_outsb, + .mv_outsw = hd64461_outsw, + .mv_outsl = hd64461_outsl, + + .mv_readw = hd64461_readw, + .mv_writew = hd64461_writew, + + .mv_irq_demux = hd64461_irq_demux, +}; +ALIAS_MV(hp6xx) diff --git a/arch/sh/boards/landisk/setup.c b/arch/sh/boards/landisk/setup.c index 3a795cfb1eda..127b9e020e00 100644 --- a/arch/sh/boards/landisk/setup.c +++ b/arch/sh/boards/landisk/setup.c @@ -69,42 +69,6 @@ static void heartbeat_landisk(void) landisk_buzzerparam >>= 1; } -/* - * The Machine Vector - */ -struct sh_machine_vector mv_landisk __initmv = { - .mv_nr_irqs = 72, - .mv_inb = landisk_inb, - .mv_inw = landisk_inw, - .mv_inl = landisk_inl, - .mv_outb = landisk_outb, - .mv_outw = landisk_outw, - .mv_outl = landisk_outl, - .mv_inb_p = landisk_inb_p, - .mv_inw_p = landisk_inw, - .mv_inl_p = landisk_inl, - .mv_outb_p = landisk_outb_p, - .mv_outw_p = landisk_outw, - .mv_outl_p = landisk_outl, - .mv_insb = landisk_insb, - .mv_insw = landisk_insw, - .mv_insl = landisk_insl, - .mv_outsb = landisk_outsb, - .mv_outsw = landisk_outsw, - .mv_outsl = landisk_outsl, - .mv_ioport_map = landisk_ioport_map, - .mv_init_irq = init_landisk_IRQ, -#ifdef CONFIG_HEARTBEAT - .mv_heartbeat = heartbeat_landisk, -#endif -}; -ALIAS_MV(landisk) - -const char *get_system_type(void) -{ - return "LANDISK"; -} - static void landisk_power_off(void) { ctrl_outb(0x01, PA_SHUTDOWN); @@ -132,16 +96,6 @@ static void check_usl5p(void) } } -void __init platform_setup(void) -{ - landisk_buzzerparam = 0; - check_usl5p(); - - printk(KERN_INFO "I-O DATA DEVICE, INC. \"LANDISK Series\" support.\n"); - board_time_init = landisk_time_init; - pm_power_off = landisk_power_off; -} - void *area5_io_base; void *area6_io_base; @@ -176,4 +130,48 @@ static int __init landisk_cf_init(void) return 0; } -__initcall(landisk_cf_init); +static void __init landisk_setup(char **cmdline_p) +{ + device_initcall(landisk_cf_init); + + landisk_buzzerparam = 0; + check_usl5p(); + + printk(KERN_INFO "I-O DATA DEVICE, INC. \"LANDISK Series\" support.\n"); + + board_time_init = landisk_time_init; + pm_power_off = landisk_power_off; +} + +/* + * The Machine Vector + */ +struct sh_machine_vector mv_landisk __initmv = { + .mv_name = "LANDISK", + .mv_setup = landisk_setup, + .mv_nr_irqs = 72, + .mv_inb = landisk_inb, + .mv_inw = landisk_inw, + .mv_inl = landisk_inl, + .mv_outb = landisk_outb, + .mv_outw = landisk_outw, + .mv_outl = landisk_outl, + .mv_inb_p = landisk_inb_p, + .mv_inw_p = landisk_inw, + .mv_inl_p = landisk_inl, + .mv_outb_p = landisk_outb_p, + .mv_outw_p = landisk_outw, + .mv_outl_p = landisk_outl, + .mv_insb = landisk_insb, + .mv_insw = landisk_insw, + .mv_insl = landisk_insl, + .mv_outsb = landisk_outsb, + .mv_outsw = landisk_outsw, + .mv_outsl = landisk_outsl, + .mv_ioport_map = landisk_ioport_map, + .mv_init_irq = init_landisk_IRQ, +#ifdef CONFIG_HEARTBEAT + .mv_heartbeat = heartbeat_landisk, +#endif +}; +ALIAS_MV(landisk) diff --git a/arch/sh/boards/mpc1211/setup.c b/arch/sh/boards/mpc1211/setup.c index e9c8ff221dda..8eb5d4303972 100644 --- a/arch/sh/boards/mpc1211/setup.c +++ b/arch/sh/boards/mpc1211/setup.c @@ -10,14 +10,12 @@ #include #include #include - #include #include #include #include #include - /* ALI15X3 SMBus address offsets */ #define SMBHSTSTS (0 + 0x3100) #define SMBHSTCNT (1 + 0x3100) @@ -50,11 +48,6 @@ #define ALI15X3_STS_TERM 0x80 /* terminated by abort */ #define ALI15X3_STS_ERR 0xE0 /* all the bad error bits */ -const char *get_system_type(void) -{ - return "Interface MPC-1211(CTP/PCI/MPC-SH02)"; -} - static void __init pci_write_config(unsigned long busNo, unsigned long devNo, unsigned long fncNo, @@ -205,7 +198,7 @@ int mpc1211_irq_demux(int irq) return irq; } -void __init init_mpc1211_IRQ(void) +static void __init init_mpc1211_IRQ(void) { int i; /* @@ -289,26 +282,10 @@ static int put_smb_blk(unsigned char *p, int address, int command, int no) return 0; } -/* - * The Machine Vector - */ - -struct sh_machine_vector mv_mpc1211 __initmv = { - .mv_nr_irqs = 48, - .mv_irq_demux = mpc1211_irq_demux, - .mv_init_irq = init_mpc1211_IRQ, - -#ifdef CONFIG_HEARTBEAT - .mv_heartbeat = heartbeat_mpc1211, -#endif -}; - -ALIAS_MV(mpc1211) - /* arch/sh/boards/mpc1211/rtc.c */ void mpc1211_time_init(void); -int __init platform_setup(void) +static void __init mpc1211_setup(char **cmdline_p) { unsigned char spd_buf[128]; @@ -332,3 +309,18 @@ int __init platform_setup(void) return 0; } +/* + * The Machine Vector + */ +struct sh_machine_vector mv_mpc1211 __initmv = { + .mv_name = "Interface MPC-1211(CTP/PCI/MPC-SH02)", + .mv_setup = mpc1211_setup, + .mv_nr_irqs = 48, + .mv_irq_demux = mpc1211_irq_demux, + .mv_init_irq = init_mpc1211_IRQ, + +#ifdef CONFIG_HEARTBEAT + .mv_heartbeat = heartbeat_mpc1211, +#endif +}; +ALIAS_MV(mpc1211) diff --git a/arch/sh/boards/renesas/edosk7705/setup.c b/arch/sh/boards/renesas/edosk7705/setup.c index ba143fa4afaa..ec5be0107719 100644 --- a/arch/sh/boards/renesas/edosk7705/setup.c +++ b/arch/sh/boards/renesas/edosk7705/setup.c @@ -8,19 +8,21 @@ * Modified for edosk7705 development * board by S. Dunn, 2003. */ - #include #include -#include #include -static void init_edosk7705(void); +static void __init sh_edosk7705_init_irq(void) +{ + /* This is the Ethernet interrupt */ + make_imask_irq(0x09); +} /* * The Machine Vector */ - struct sh_machine_vector mv_edosk7705 __initmv = { + .mv_name = "EDOSK7705", .mv_nr_irqs = 80, .mv_inb = sh_edosk7705_inb, @@ -37,23 +39,6 @@ struct sh_machine_vector mv_edosk7705 __initmv = { .mv_outsl = sh_edosk7705_outsl, .mv_isa_port2addr = sh_edosk7705_isa_port2addr, - .mv_init_irq = init_edosk7705, + .mv_init_irq = sh_edosk7705_init_irq, }; ALIAS_MV(edosk7705) - -static void __init init_edosk7705(void) -{ - /* This is the Ethernet interrupt */ - make_imask_irq(0x09); -} - -const char *get_system_type(void) -{ - return "EDOSK7705"; -} - -void __init platform_setup(void) -{ - /* Nothing .. */ -} - diff --git a/arch/sh/boards/renesas/hs7751rvoip/setup.c b/arch/sh/boards/renesas/hs7751rvoip/setup.c index a2cbcc5d530f..0414c15c3458 100644 --- a/arch/sh/boards/renesas/hs7751rvoip/setup.c +++ b/arch/sh/boards/renesas/hs7751rvoip/setup.c @@ -1,15 +1,12 @@ /* - * linux/arch/sh/kernel/setup_hs7751rvoip.c + * Renesas Technology Sales HS7751RVoIP Support. * * Copyright (C) 2000 Kazumoto Kojima * - * Renesas Technology Sales HS7751RVoIP Support. - * * Modified for HS7751RVoIP by * Atom Create Engineering Co., Ltd. 2002. * Lineo uSolutions, Inc. 2003. */ - #include #include #include @@ -23,8 +20,6 @@ #include #include -unsigned int debug_counter; - static void __init hs7751rvoip_init_irq(void) { #if defined(CONFIG_HS7751RVOIP_CODEC) @@ -35,56 +30,11 @@ static void __init hs7751rvoip_init_irq(void) init_hs7751rvoip_IRQ(); } -struct sh_machine_vector mv_hs7751rvoip __initmv = { - .mv_nr_irqs = 72, - - .mv_inb = hs7751rvoip_inb, - .mv_inw = hs7751rvoip_inw, - .mv_inl = hs7751rvoip_inl, - .mv_outb = hs7751rvoip_outb, - .mv_outw = hs7751rvoip_outw, - .mv_outl = hs7751rvoip_outl, - - .mv_inb_p = hs7751rvoip_inb_p, - .mv_inw_p = hs7751rvoip_inw, - .mv_inl_p = hs7751rvoip_inl, - .mv_outb_p = hs7751rvoip_outb_p, - .mv_outw_p = hs7751rvoip_outw, - .mv_outl_p = hs7751rvoip_outl, - - .mv_insb = hs7751rvoip_insb, - .mv_insw = hs7751rvoip_insw, - .mv_insl = hs7751rvoip_insl, - .mv_outsb = hs7751rvoip_outsb, - .mv_outsw = hs7751rvoip_outsw, - .mv_outsl = hs7751rvoip_outsl, - - .mv_init_irq = hs7751rvoip_init_irq, - .mv_ioport_map = hs7751rvoip_ioport_map, -}; -ALIAS_MV(hs7751rvoip) - -const char *get_system_type(void) -{ - return "HS7751RVoIP"; -} - static void hs7751rvoip_power_off(void) { ctrl_outw(ctrl_inw(PA_OUTPORTR) & 0xffdf, PA_OUTPORTR); } -/* - * Initialize the board - */ -void __init platform_setup(void) -{ - printk(KERN_INFO "Renesas Technology Sales HS7751RVoIP-2 support.\n"); - ctrl_outb(0xf0, PA_OUTPORTR); - pm_power_off = hs7751rvoip_power_off; - debug_counter = 0; -} - void *area5_io8_base; void *area6_io8_base; void *area5_io16_base; @@ -127,4 +77,46 @@ static int __init hs7751rvoip_cf_init(void) return 0; } -__initcall(hs7751rvoip_cf_init); +/* + * Initialize the board + */ +static void __init hs7751rvoip_setup(char **cmdline_p) +{ + device_initcall(hs7751rvoip_cf_init); + + ctrl_outb(0xf0, PA_OUTPORTR); + pm_power_off = hs7751rvoip_power_off; + + printk(KERN_INFO "Renesas Technology Sales HS7751RVoIP-2 support.\n"); +} + +struct sh_machine_vector mv_hs7751rvoip __initmv = { + .mv_name = "HS7751RVoIP", + .mv_setup = hs7751rvoip_setup, + .mv_nr_irqs = 72, + + .mv_inb = hs7751rvoip_inb, + .mv_inw = hs7751rvoip_inw, + .mv_inl = hs7751rvoip_inl, + .mv_outb = hs7751rvoip_outb, + .mv_outw = hs7751rvoip_outw, + .mv_outl = hs7751rvoip_outl, + + .mv_inb_p = hs7751rvoip_inb_p, + .mv_inw_p = hs7751rvoip_inw, + .mv_inl_p = hs7751rvoip_inl, + .mv_outb_p = hs7751rvoip_outb_p, + .mv_outw_p = hs7751rvoip_outw, + .mv_outl_p = hs7751rvoip_outl, + + .mv_insb = hs7751rvoip_insb, + .mv_insw = hs7751rvoip_insw, + .mv_insl = hs7751rvoip_insl, + .mv_outsb = hs7751rvoip_outsb, + .mv_outsw = hs7751rvoip_outsw, + .mv_outsl = hs7751rvoip_outsl, + + .mv_init_irq = hs7751rvoip_init_irq, + .mv_ioport_map = hs7751rvoip_ioport_map, +}; +ALIAS_MV(hs7751rvoip) diff --git a/arch/sh/boards/renesas/r7780rp/setup.c b/arch/sh/boards/renesas/r7780rp/setup.c index 0e4d5e1b541c..b941aa0aa34e 100644 --- a/arch/sh/boards/renesas/r7780rp/setup.c +++ b/arch/sh/boards/renesas/r7780rp/setup.c @@ -20,41 +20,6 @@ extern void heartbeat_r7780rp(void); extern void init_r7780rp_IRQ(void); -/* - * The Machine Vector - */ -struct sh_machine_vector mv_r7780rp __initmv = { - .mv_nr_irqs = 109, - - .mv_inb = r7780rp_inb, - .mv_inw = r7780rp_inw, - .mv_inl = r7780rp_inl, - .mv_outb = r7780rp_outb, - .mv_outw = r7780rp_outw, - .mv_outl = r7780rp_outl, - - .mv_inb_p = r7780rp_inb_p, - .mv_inw_p = r7780rp_inw, - .mv_inl_p = r7780rp_inl, - .mv_outb_p = r7780rp_outb_p, - .mv_outw_p = r7780rp_outw, - .mv_outl_p = r7780rp_outl, - - .mv_insb = r7780rp_insb, - .mv_insw = r7780rp_insw, - .mv_insl = r7780rp_insl, - .mv_outsb = r7780rp_outsb, - .mv_outsw = r7780rp_outsw, - .mv_outsl = r7780rp_outsl, - - .mv_ioport_map = r7780rp_ioport_map, - .mv_init_irq = init_r7780rp_IRQ, -#ifdef CONFIG_HEARTBEAT - .mv_heartbeat = heartbeat_r7780rp, -#endif -}; -ALIAS_MV(r7780rp) - static struct resource m66596_usb_host_resources[] = { [0] = { .start = 0xa4800000, @@ -88,7 +53,6 @@ static int __init r7780rp_devices_setup(void) return platform_add_devices(r7780rp_devices, ARRAY_SIZE(r7780rp_devices)); } -__initcall(r7780rp_devices_setup); /* * Platform specific clocks @@ -117,11 +81,6 @@ static struct clk *r7780rp_clocks[] = { &ivdr_clk, }; -const char *get_system_type(void) -{ - return "Highlander R7780RP-1"; -} - static void r7780rp_power_off(void) { #ifdef CONFIG_SH_R7780MP @@ -132,11 +91,13 @@ static void r7780rp_power_off(void) /* * Initialize the board */ -void __init platform_setup(void) +static void __init r7780rp_setup(char **cmdline_p) { u16 ver = ctrl_inw(PA_VERREG); int i; + device_initcall(r7780rp_devices_setup); + printk(KERN_INFO "Renesas Solutions Highlander R7780RP-1 support.\n"); printk(KERN_INFO "Board version: %d (revision %d), " @@ -162,3 +123,41 @@ void __init platform_setup(void) pm_power_off = r7780rp_power_off; } + +/* + * The Machine Vector + */ +struct sh_machine_vector mv_r7780rp __initmv = { + .mv_name = "Highlander R7780RP-1", + .mv_setup = r7780rp_setup, + + .mv_nr_irqs = 109, + + .mv_inb = r7780rp_inb, + .mv_inw = r7780rp_inw, + .mv_inl = r7780rp_inl, + .mv_outb = r7780rp_outb, + .mv_outw = r7780rp_outw, + .mv_outl = r7780rp_outl, + + .mv_inb_p = r7780rp_inb_p, + .mv_inw_p = r7780rp_inw, + .mv_inl_p = r7780rp_inl, + .mv_outb_p = r7780rp_outb_p, + .mv_outw_p = r7780rp_outw, + .mv_outl_p = r7780rp_outl, + + .mv_insb = r7780rp_insb, + .mv_insw = r7780rp_insw, + .mv_insl = r7780rp_insl, + .mv_outsb = r7780rp_outsb, + .mv_outsw = r7780rp_outsw, + .mv_outsl = r7780rp_outsl, + + .mv_ioport_map = r7780rp_ioport_map, + .mv_init_irq = init_r7780rp_IRQ, +#ifdef CONFIG_HEARTBEAT + .mv_heartbeat = heartbeat_r7780rp, +#endif +}; +ALIAS_MV(r7780rp) diff --git a/arch/sh/boards/renesas/rts7751r2d/Makefile b/arch/sh/boards/renesas/rts7751r2d/Makefile index eee1ed6f5727..686fc9ea5989 100644 --- a/arch/sh/boards/renesas/rts7751r2d/Makefile +++ b/arch/sh/boards/renesas/rts7751r2d/Makefile @@ -2,5 +2,5 @@ # Makefile for the RTS7751R2D specific parts of the kernel # -obj-y := mach.o setup.o io.o irq.o led.o - +obj-y := setup.o io.o irq.o +obj-$(CONFIG_HEARTBEAT) += led.o diff --git a/arch/sh/boards/renesas/rts7751r2d/mach.c b/arch/sh/boards/renesas/rts7751r2d/mach.c deleted file mode 100644 index fe3e8735e9f8..000000000000 --- a/arch/sh/boards/renesas/rts7751r2d/mach.c +++ /dev/null @@ -1,66 +0,0 @@ -/* - * linux/arch/sh/kernel/mach_rts7751r2d.c - * - * Minor tweak of mach_se.c file to reference rts7751r2d-specific items. - * - * May be copied or modified under the terms of the GNU General Public - * License. See linux/COPYING for more information. - * - * Machine vector for the Renesas Technology sales RTS7751R2D - */ - -#include -#include - -#include -#include -#include -#include - -extern void heartbeat_rts7751r2d(void); -extern void init_rts7751r2d_IRQ(void); -extern int rts7751r2d_irq_demux(int irq); - -extern void *voyagergx_consistent_alloc(struct device *, size_t, dma_addr_t *, gfp_t); -extern int voyagergx_consistent_free(struct device *, size_t, void *, dma_addr_t); - -/* - * The Machine Vector - */ - -struct sh_machine_vector mv_rts7751r2d __initmv = { - .mv_nr_irqs = 72, - - .mv_inb = rts7751r2d_inb, - .mv_inw = rts7751r2d_inw, - .mv_inl = rts7751r2d_inl, - .mv_outb = rts7751r2d_outb, - .mv_outw = rts7751r2d_outw, - .mv_outl = rts7751r2d_outl, - - .mv_inb_p = rts7751r2d_inb_p, - .mv_inw_p = rts7751r2d_inw, - .mv_inl_p = rts7751r2d_inl, - .mv_outb_p = rts7751r2d_outb_p, - .mv_outw_p = rts7751r2d_outw, - .mv_outl_p = rts7751r2d_outl, - - .mv_insb = rts7751r2d_insb, - .mv_insw = rts7751r2d_insw, - .mv_insl = rts7751r2d_insl, - .mv_outsb = rts7751r2d_outsb, - .mv_outsw = rts7751r2d_outsw, - .mv_outsl = rts7751r2d_outsl, - - .mv_init_irq = init_rts7751r2d_IRQ, -#ifdef CONFIG_HEARTBEAT - .mv_heartbeat = heartbeat_rts7751r2d, -#endif - .mv_irq_demux = rts7751r2d_irq_demux, - -#ifdef CONFIG_USB_OHCI_HCD - .mv_consistent_alloc = voyagergx_consistent_alloc, - .mv_consistent_free = voyagergx_consistent_free, -#endif -}; -ALIAS_MV(rts7751r2d) diff --git a/arch/sh/boards/renesas/rts7751r2d/setup.c b/arch/sh/boards/renesas/rts7751r2d/setup.c index bb56c018f2ee..20597a6e6702 100644 --- a/arch/sh/boards/renesas/rts7751r2d/setup.c +++ b/arch/sh/boards/renesas/rts7751r2d/setup.c @@ -13,9 +13,17 @@ #include #include #include +#include #include #include +extern void heartbeat_rts7751r2d(void); +extern void init_rts7751r2d_IRQ(void); +extern int rts7751r2d_irq_demux(int irq); + +extern void *voyagergx_consistent_alloc(struct device *, size_t, dma_addr_t *, gfp_t); +extern int voyagergx_consistent_free(struct device *, size_t, void *, dma_addr_t); + static struct plat_serial8250_port uart_platform_data[] = { { .membase = (void *)VOYAGER_UART_BASE, @@ -70,12 +78,6 @@ static int __init rts7751r2d_devices_setup(void) return platform_add_devices(rts7751r2d_devices, ARRAY_SIZE(rts7751r2d_devices)); } -__initcall(rts7751r2d_devices_setup); - -const char *get_system_type(void) -{ - return "RTS7751R2D"; -} static void rts7751r2d_power_off(void) { @@ -85,12 +87,56 @@ static void rts7751r2d_power_off(void) /* * Initialize the board */ -void __init platform_setup(void) +static void __init rts7751r2d_setup(char **cmdline_p) { - printk(KERN_INFO "Renesas Technology Sales RTS7751R2D support.\n"); + device_initcall(rts7751r2d_devices_setup); + ctrl_outw(0x0000, PA_OUTPORT); pm_power_off = rts7751r2d_power_off; voyagergx_serial_init(); + printk(KERN_INFO "Renesas Technology Sales RTS7751R2D support.\n"); } + +/* + * The Machine Vector + */ +struct sh_machine_vector mv_rts7751r2d __initmv = { + .mv_name = "RTS7751R2D", + .mv_setup = rts7751r2d_setup, + .mv_nr_irqs = 72, + + .mv_inb = rts7751r2d_inb, + .mv_inw = rts7751r2d_inw, + .mv_inl = rts7751r2d_inl, + .mv_outb = rts7751r2d_outb, + .mv_outw = rts7751r2d_outw, + .mv_outl = rts7751r2d_outl, + + .mv_inb_p = rts7751r2d_inb_p, + .mv_inw_p = rts7751r2d_inw, + .mv_inl_p = rts7751r2d_inl, + .mv_outb_p = rts7751r2d_outb_p, + .mv_outw_p = rts7751r2d_outw, + .mv_outl_p = rts7751r2d_outl, + + .mv_insb = rts7751r2d_insb, + .mv_insw = rts7751r2d_insw, + .mv_insl = rts7751r2d_insl, + .mv_outsb = rts7751r2d_outsb, + .mv_outsw = rts7751r2d_outsw, + .mv_outsl = rts7751r2d_outsl, + + .mv_init_irq = init_rts7751r2d_IRQ, +#ifdef CONFIG_HEARTBEAT + .mv_heartbeat = heartbeat_rts7751r2d, +#endif + .mv_irq_demux = rts7751r2d_irq_demux, + +#ifdef CONFIG_USB_SM501 + .mv_consistent_alloc = voyagergx_consistent_alloc, + .mv_consistent_free = voyagergx_consistent_free, +#endif +}; +ALIAS_MV(rts7751r2d) diff --git a/arch/sh/boards/renesas/systemh/setup.c b/arch/sh/boards/renesas/systemh/setup.c index 433c7c3f35e2..a8467bf90c25 100644 --- a/arch/sh/boards/renesas/systemh/setup.c +++ b/arch/sh/boards/renesas/systemh/setup.c @@ -20,20 +20,16 @@ extern void make_systemh_irq(unsigned int irq); -const char *get_system_type(void) -{ - return "7751 SystemH"; -} - /* * Initialize IRQ setting */ -void __init init_7751systemh_IRQ(void) +static void __init sh7751systemh_init_irq(void) { make_systemh_irq(0xb); /* Ethernet interrupt */ } struct sh_machine_vector mv_7751systemh __initmv = { + .mv_name = "7751 SystemH", .mv_nr_irqs = 72, .mv_inb = sh7751systemh_inb, @@ -57,12 +53,6 @@ struct sh_machine_vector mv_7751systemh __initmv = { .mv_outsw = sh7751systemh_outsw, .mv_outsl = sh7751systemh_outsl, - .mv_init_irq = init_7751systemh_IRQ, + .mv_init_irq = sh7751system_init_irq, }; ALIAS_MV(7751systemh) - -int __init platform_setup(void) -{ - return 0; -} - diff --git a/arch/sh/boards/saturn/setup.c b/arch/sh/boards/saturn/setup.c index bea6c572ad82..a3a37c9aad2e 100644 --- a/arch/sh/boards/saturn/setup.c +++ b/arch/sh/boards/saturn/setup.c @@ -9,22 +9,17 @@ */ #include #include - #include #include #include extern int saturn_irq_demux(int irq_nr); -const char *get_system_type(void) -{ - return "Sega Saturn"; -} - /* * The Machine Vector */ struct sh_machine_vector mv_saturn __initmv = { + .mv_name = "Sega Saturn", .mv_nr_irqs = 80, /* Fix this later */ .mv_isa_port2addr = saturn_isa_port2addr, @@ -33,11 +28,4 @@ struct sh_machine_vector mv_saturn __initmv = { .mv_ioremap = saturn_ioremap, .mv_iounmap = saturn_iounmap, }; - ALIAS_MV(saturn) - -int __init platform_setup(void) -{ - return 0; -} - diff --git a/arch/sh/boards/se/7300/setup.c b/arch/sh/boards/se/7300/setup.c index bb7e1a189be8..6f082a722d42 100644 --- a/arch/sh/boards/se/7300/setup.c +++ b/arch/sh/boards/se/7300/setup.c @@ -14,17 +14,11 @@ void heartbeat_7300se(void); void init_7300se_IRQ(void); -const char * -get_system_type(void) -{ - return "SolutionEngine 7300"; -} - /* * The Machine Vector */ - struct sh_machine_vector mv_7300se __initmv = { + .mv_name = "SolutionEngine 7300", .mv_nr_irqs = 109, .mv_inb = sh7300se_inb, .mv_inw = sh7300se_inw, @@ -52,13 +46,4 @@ struct sh_machine_vector mv_7300se __initmv = { .mv_heartbeat = heartbeat_7300se, #endif }; - ALIAS_MV(7300se) -/* - * Initialize the board - */ -void __init -platform_setup(void) -{ - -} diff --git a/arch/sh/boards/se/73180/setup.c b/arch/sh/boards/se/73180/setup.c index 4daf53b1457f..b38ef50a160a 100644 --- a/arch/sh/boards/se/73180/setup.c +++ b/arch/sh/boards/se/73180/setup.c @@ -17,17 +17,11 @@ void heartbeat_73180se(void); void init_73180se_IRQ(void); -const char * -get_system_type(void) -{ - return "SolutionEngine 73180"; -} - /* * The Machine Vector */ - struct sh_machine_vector mv_73180se __initmv = { + .mv_name = "SolutionEngine 73180", .mv_nr_irqs = 108, .mv_inb = sh73180se_inb, .mv_inw = sh73180se_inw, @@ -56,13 +50,4 @@ struct sh_machine_vector mv_73180se __initmv = { .mv_heartbeat = heartbeat_73180se, #endif }; - ALIAS_MV(73180se) -/* - * Initialize the board - */ -void __init -platform_setup(void) -{ - -} diff --git a/arch/sh/boards/se/770x/Makefile b/arch/sh/boards/se/770x/Makefile index c96ed6933fe1..9a5035f80ec0 100644 --- a/arch/sh/boards/se/770x/Makefile +++ b/arch/sh/boards/se/770x/Makefile @@ -2,6 +2,5 @@ # Makefile for the 770x SolutionEngine specific parts of the kernel # -obj-y := mach.o setup.o io.o irq.o - +obj-y := setup.o io.o irq.o obj-$(CONFIG_HEARTBEAT) += led.o diff --git a/arch/sh/boards/se/770x/mach.c b/arch/sh/boards/se/770x/mach.c deleted file mode 100644 index e8968b71c353..000000000000 --- a/arch/sh/boards/se/770x/mach.c +++ /dev/null @@ -1,62 +0,0 @@ -/* - * linux/arch/sh/kernel/mach_se.c - * - * Copyright (C) 2000 Stuart Menefy (stuart.menefy@st.com) - * - * May be copied or modified under the terms of the GNU General Public - * License. See linux/COPYING for more information. - * - * Machine vector for the Hitachi SolutionEngine - */ - -#include - -#include -#include -#include - -void heartbeat_se(void); -void init_se_IRQ(void); - -/* - * The Machine Vector - */ - -struct sh_machine_vector mv_se __initmv = { -#if defined(CONFIG_CPU_SH4) - .mv_nr_irqs = 48, -#elif defined(CONFIG_CPU_SUBTYPE_SH7708) - .mv_nr_irqs = 32, -#elif defined(CONFIG_CPU_SUBTYPE_SH7709) - .mv_nr_irqs = 61, -#elif defined(CONFIG_CPU_SUBTYPE_SH7705) - .mv_nr_irqs = 86, -#endif - - .mv_inb = se_inb, - .mv_inw = se_inw, - .mv_inl = se_inl, - .mv_outb = se_outb, - .mv_outw = se_outw, - .mv_outl = se_outl, - - .mv_inb_p = se_inb_p, - .mv_inw_p = se_inw, - .mv_inl_p = se_inl, - .mv_outb_p = se_outb_p, - .mv_outw_p = se_outw, - .mv_outl_p = se_outl, - - .mv_insb = se_insb, - .mv_insw = se_insw, - .mv_insl = se_insl, - .mv_outsb = se_outsb, - .mv_outsw = se_outsw, - .mv_outsl = se_outsl, - - .mv_init_irq = init_se_IRQ, -#ifdef CONFIG_HEARTBEAT - .mv_heartbeat = heartbeat_se, -#endif -}; -ALIAS_MV(se) diff --git a/arch/sh/boards/se/770x/setup.c b/arch/sh/boards/se/770x/setup.c index c9f75272e751..f3f82b7c8217 100644 --- a/arch/sh/boards/se/770x/setup.c +++ b/arch/sh/boards/se/770x/setup.c @@ -7,15 +7,17 @@ * Hitachi SolutionEngine Support. * */ - #include #include - #include #include #include #include #include +#include + +void heartbeat_se(void); +void init_se_IRQ(void); /* * Configure the Super I/O chip @@ -26,7 +28,8 @@ static void __init smsc_config(int index, int data) outb_p(data, DATA_PORT); } -static void __init init_smsc(void) +/* XXX: Another candidate for a more generic cchip machine vector */ +static void __init smsc_setup(char **cmdline_p) { outb_p(CONFIG_ENTER, CONFIG_PORT); outb_p(CONFIG_ENTER, CONFIG_PORT); @@ -69,16 +72,46 @@ static void __init init_smsc(void) outb_p(CONFIG_EXIT, CONFIG_PORT); } -const char *get_system_type(void) -{ - return "SolutionEngine"; -} - /* - * Initialize the board + * The Machine Vector */ -void __init platform_setup(void) -{ - init_smsc(); - /* XXX: RTC setting comes here */ -} +struct sh_machine_vector mv_se __initmv = { + .mv_name = "SolutionEngine", + .mv_setup = smsc_setup, +#if defined(CONFIG_CPU_SH4) + .mv_nr_irqs = 48, +#elif defined(CONFIG_CPU_SUBTYPE_SH7708) + .mv_nr_irqs = 32, +#elif defined(CONFIG_CPU_SUBTYPE_SH7709) + .mv_nr_irqs = 61, +#elif defined(CONFIG_CPU_SUBTYPE_SH7705) + .mv_nr_irqs = 86, +#endif + + .mv_inb = se_inb, + .mv_inw = se_inw, + .mv_inl = se_inl, + .mv_outb = se_outb, + .mv_outw = se_outw, + .mv_outl = se_outl, + + .mv_inb_p = se_inb_p, + .mv_inw_p = se_inw, + .mv_inl_p = se_inl, + .mv_outb_p = se_outb_p, + .mv_outw_p = se_outw, + .mv_outl_p = se_outl, + + .mv_insb = se_insb, + .mv_insw = se_insw, + .mv_insl = se_insl, + .mv_outsb = se_outsb, + .mv_outsw = se_outsw, + .mv_outsl = se_outsl, + + .mv_init_irq = init_se_IRQ, +#ifdef CONFIG_HEARTBEAT + .mv_heartbeat = heartbeat_se, +#endif +}; +ALIAS_MV(se) diff --git a/arch/sh/boards/se/7751/Makefile b/arch/sh/boards/se/7751/Makefile index 07bf17a4a19b..188900c48321 100644 --- a/arch/sh/boards/se/7751/Makefile +++ b/arch/sh/boards/se/7751/Makefile @@ -2,8 +2,7 @@ # Makefile for the 7751 SolutionEngine specific parts of the kernel # -obj-y := mach.o setup.o io.o irq.o +obj-y := setup.o io.o irq.o obj-$(CONFIG_PCI) += pci.o obj-$(CONFIG_HEARTBEAT) += led.o - diff --git a/arch/sh/boards/se/7751/mach.c b/arch/sh/boards/se/7751/mach.c deleted file mode 100644 index 1bb9047d863b..000000000000 --- a/arch/sh/boards/se/7751/mach.c +++ /dev/null @@ -1,48 +0,0 @@ -/* - * linux/arch/sh/kernel/mach_7751se.c - * - * Minor tweak of mach_se.c file to reference 7751se-specific items. - * - * May be copied or modified under the terms of the GNU General Public - * License. See linux/COPYING for more information. - * - * Machine vector for the Hitachi 7751 SolutionEngine - */ - -#include -#include -#include - -void heartbeat_7751se(void); -void init_7751se_IRQ(void); - -/* - * The Machine Vector - */ - -struct sh_machine_vector mv_7751se __initmv = { - .mv_nr_irqs = 72, - - .mv_inb = sh7751se_inb, - .mv_inw = sh7751se_inw, - .mv_inl = sh7751se_inl, - .mv_outb = sh7751se_outb, - .mv_outw = sh7751se_outw, - .mv_outl = sh7751se_outl, - - .mv_inb_p = sh7751se_inb_p, - .mv_inw_p = sh7751se_inw, - .mv_inl_p = sh7751se_inl, - .mv_outb_p = sh7751se_outb_p, - .mv_outw_p = sh7751se_outw, - .mv_outl_p = sh7751se_outl, - - .mv_insl = sh7751se_insl, - .mv_outsl = sh7751se_outsl, - - .mv_init_irq = init_7751se_IRQ, -#ifdef CONFIG_HEARTBEAT - .mv_heartbeat = heartbeat_7751se, -#endif -}; -ALIAS_MV(7751se) diff --git a/arch/sh/boards/se/7751/setup.c b/arch/sh/boards/se/7751/setup.c index 8b693105893c..73e826310ba8 100644 --- a/arch/sh/boards/se/7751/setup.c +++ b/arch/sh/boards/se/7751/setup.c @@ -15,72 +15,11 @@ #include #include -#ifdef CONFIG_SH_KGDB -#include -#endif - -/* - * Configure the Super I/O chip - */ -#if 0 -/* Leftover code from regular Solution Engine, for reference. */ -/* The SH7751 Solution Engine has a different SuperIO. */ -static void __init smsc_config(int index, int data) -{ - outb_p(index, INDEX_PORT); - outb_p(data, DATA_PORT); -} - -static void __init init_smsc(void) -{ - outb_p(CONFIG_ENTER, CONFIG_PORT); - outb_p(CONFIG_ENTER, CONFIG_PORT); - - /* FDC */ - smsc_config(CURRENT_LDN_INDEX, LDN_FDC); - smsc_config(ACTIVATE_INDEX, 0x01); - smsc_config(IRQ_SELECT_INDEX, 6); /* IRQ6 */ - - /* IDE1 */ - smsc_config(CURRENT_LDN_INDEX, LDN_IDE1); - smsc_config(ACTIVATE_INDEX, 0x01); - smsc_config(IRQ_SELECT_INDEX, 14); /* IRQ14 */ - - /* AUXIO (GPIO): to use IDE1 */ - smsc_config(CURRENT_LDN_INDEX, LDN_AUXIO); - smsc_config(GPIO46_INDEX, 0x00); /* nIOROP */ - smsc_config(GPIO47_INDEX, 0x00); /* nIOWOP */ - - /* COM1 */ - smsc_config(CURRENT_LDN_INDEX, LDN_COM1); - smsc_config(ACTIVATE_INDEX, 0x01); - smsc_config(IO_BASE_HI_INDEX, 0x03); - smsc_config(IO_BASE_LO_INDEX, 0xf8); - smsc_config(IRQ_SELECT_INDEX, 4); /* IRQ4 */ - - /* COM2 */ - smsc_config(CURRENT_LDN_INDEX, LDN_COM2); - smsc_config(ACTIVATE_INDEX, 0x01); - smsc_config(IO_BASE_HI_INDEX, 0x02); - smsc_config(IO_BASE_LO_INDEX, 0xf8); - smsc_config(IRQ_SELECT_INDEX, 3); /* IRQ3 */ - - /* RTC */ - smsc_config(CURRENT_LDN_INDEX, LDN_RTC); - smsc_config(ACTIVATE_INDEX, 0x01); - smsc_config(IRQ_SELECT_INDEX, 8); /* IRQ8 */ - - /* XXX: PARPORT, KBD, and MOUSE will come here... */ - outb_p(CONFIG_EXIT, CONFIG_PORT); -} -#endif - -const char *get_system_type(void) -{ - return "7751 SolutionEngine"; -} +void heartbeat_7751se(void); +void init_7751se_IRQ(void); #ifdef CONFIG_SH_KGDB +#include static int kgdb_uart_setup(void); static struct kgdb_sermap kgdb_uart_sermap = { "ttyS", 0, kgdb_uart_setup, NULL }; @@ -89,7 +28,7 @@ static struct kgdb_sermap kgdb_uart_sermap = /* * Initialize the board */ -void __init platform_setup(void) +static void __init sh7751se_setup(char **cmdline_p) { /* Call init_smsc() replacement to set up SuperIO. */ /* XXX: RTC setting comes here */ @@ -223,3 +162,37 @@ static int kgdb_uart_setup(void) return 0; } #endif /* CONFIG_SH_KGDB */ + + +/* + * The Machine Vector + */ + +struct sh_machine_vector mv_7751se __initmv = { + .mv_name = "7751 SolutionEngine", + .mv_setup = sh7751se_setup, + .mv_nr_irqs = 72, + + .mv_inb = sh7751se_inb, + .mv_inw = sh7751se_inw, + .mv_inl = sh7751se_inl, + .mv_outb = sh7751se_outb, + .mv_outw = sh7751se_outw, + .mv_outl = sh7751se_outl, + + .mv_inb_p = sh7751se_inb_p, + .mv_inw_p = sh7751se_inw, + .mv_inl_p = sh7751se_inl, + .mv_outb_p = sh7751se_outb_p, + .mv_outw_p = sh7751se_outw, + .mv_outl_p = sh7751se_outl, + + .mv_insl = sh7751se_insl, + .mv_outsl = sh7751se_outsl, + + .mv_init_irq = init_7751se_IRQ, +#ifdef CONFIG_HEARTBEAT + .mv_heartbeat = heartbeat_7751se, +#endif +}; +ALIAS_MV(7751se) diff --git a/arch/sh/boards/sh03/setup.c b/arch/sh/boards/sh03/setup.c index 7d31d6aed8a5..6c310587ddfe 100644 --- a/arch/sh/boards/sh03/setup.c +++ b/arch/sh/boards/sh03/setup.c @@ -13,12 +13,7 @@ #include #include -const char *get_system_type(void) -{ - return "Interface (CTP/PCI-SH03)"; -} - -static void init_sh03_IRQ(void) +static void __init init_sh03_IRQ(void) { ctrl_outw(ctrl_inw(INTC_ICR) | INTC_ICR_IRLM, INTC_ICR); @@ -41,7 +36,17 @@ static void __iomem *sh03_ioport_map(unsigned long port, unsigned int size) return (void __iomem *)(port + PCI_IO_BASE); } +/* arch/sh/boards/sh03/rtc.c */ +void sh03_time_init(void); + +static void __init sh03_setup(char **cmdline_p) +{ + board_time_init = sh03_time_init; +} + struct sh_machine_vector mv_sh03 __initmv = { + .mv_name = "Interface (CTP/PCI-SH03)", + .mv_setup = sh03_setup, .mv_nr_irqs = 48, .mv_ioport_map = sh03_ioport_map, .mv_init_irq = init_sh03_IRQ, @@ -51,12 +56,3 @@ struct sh_machine_vector mv_sh03 __initmv = { #endif }; ALIAS_MV(sh03) - -/* arch/sh/boards/sh03/rtc.c */ -void sh03_time_init(void); - -int __init platform_setup(void) -{ - board_time_init = sh03_time_init; - return 0; -} diff --git a/arch/sh/boards/shmin/setup.c b/arch/sh/boards/shmin/setup.c index a950ec4d765d..2f0c19706cf9 100644 --- a/arch/sh/boards/shmin/setup.c +++ b/arch/sh/boards/shmin/setup.c @@ -14,21 +14,12 @@ #define PFC_PHCR 0xa400010e -const char *get_system_type(void) -{ - return "SHMIN"; -} - static void __init init_shmin_irq(void) { ctrl_outw(0x2a00, PFC_PHCR); // IRQ0-3=IRQ ctrl_outw(0x0aaa, INTC_ICR1); // IRQ0-3=IRQ-mode,Low-active. } -void __init platform_setup(void) -{ -} - static void __iomem *shmin_ioport_map(unsigned long port, unsigned int size) { static int dummy; @@ -43,6 +34,7 @@ static void __iomem *shmin_ioport_map(unsigned long port, unsigned int size) } struct sh_machine_vector mv_shmin __initmv = { + .mv_name = "SHMIN", .mv_init_irq = init_shmin_irq, .mv_ioport_map = shmin_ioport_map, }; diff --git a/arch/sh/boards/snapgear/setup.c b/arch/sh/boards/snapgear/setup.c index 66ce32f8b13c..f5e98c56b530 100644 --- a/arch/sh/boards/snapgear/setup.c +++ b/arch/sh/boards/snapgear/setup.c @@ -81,16 +81,20 @@ static void __init init_snapgear_IRQ(void) make_ipr_irq(IRL3_IRQ, IRL3_IPR_ADDR, IRL3_IPR_POS, IRL3_PRIORITY); } -const char *get_system_type(void) +/* + * Initialize the board + */ +static void __init snapgear_setup(char **cmdline_p) { - return "SnapGear SecureEdge5410"; + board_time_init = secureedge5410_rtc_init; } /* * The Machine Vector */ - struct sh_machine_vector mv_snapgear __initmv = { + .mv_name = "SnapGear SecureEdge5410", + .mv_setup = snapgear_setup, .mv_nr_irqs = 72, .mv_inb = snapgear_inb, @@ -110,15 +114,3 @@ struct sh_machine_vector mv_snapgear __initmv = { .mv_init_irq = init_snapgear_IRQ, }; ALIAS_MV(snapgear) - -/* - * Initialize the board - */ - -int __init platform_setup(void) -{ - board_time_init = secureedge5410_rtc_init; - - return 0; -} - diff --git a/arch/sh/boards/superh/microdev/setup.c b/arch/sh/boards/superh/microdev/setup.c index 61b402a3f5d7..031c814e6e76 100644 --- a/arch/sh/boards/superh/microdev/setup.c +++ b/arch/sh/boards/superh/microdev/setup.c @@ -10,7 +10,6 @@ * May be copied or modified under the terms of the GNU General Public * License. See linux/COPYING for more information. */ - #include #include #include @@ -21,41 +20,6 @@ extern void microdev_heartbeat(void); -/* - * The Machine Vector - */ - -struct sh_machine_vector mv_sh4202_microdev __initmv = { - .mv_nr_irqs = 72, /* QQQ need to check this - use the MACRO */ - - .mv_inb = microdev_inb, - .mv_inw = microdev_inw, - .mv_inl = microdev_inl, - .mv_outb = microdev_outb, - .mv_outw = microdev_outw, - .mv_outl = microdev_outl, - - .mv_inb_p = microdev_inb_p, - .mv_inw_p = microdev_inw_p, - .mv_inl_p = microdev_inl_p, - .mv_outb_p = microdev_outb_p, - .mv_outw_p = microdev_outw_p, - .mv_outl_p = microdev_outl_p, - - .mv_insb = microdev_insb, - .mv_insw = microdev_insw, - .mv_insl = microdev_insl, - .mv_outsb = microdev_outsb, - .mv_outsw = microdev_outsw, - .mv_outsl = microdev_outsl, - - .mv_init_irq = init_microdev_irq, - -#ifdef CONFIG_HEARTBEAT - .mv_heartbeat = microdev_heartbeat, -#endif -}; -ALIAS_MV(sh4202_microdev) /****************************************************************************/ @@ -113,11 +77,6 @@ ALIAS_MV(sh4202_microdev) /* assume a Keyboard Controller is present */ int microdev_kbd_controller_present = 1; -const char *get_system_type(void) -{ - return "SH4-202 MicroDev"; -} - static struct resource smc91x_resources[] = { [0] = { .start = 0x300, @@ -291,25 +250,9 @@ static int __init microdev_devices_setup(void) return platform_add_devices(microdev_devices, ARRAY_SIZE(microdev_devices)); } -__initcall(microdev_devices_setup); - -void __init platform_setup(void) -{ - int * const fpgaRevisionRegister = (int*)(MICRODEV_FPGA_GP_BASE + 0x8ul); - const int fpgaRevision = *fpgaRevisionRegister; - int * const CacheControlRegister = (int*)CCR; - - printk("SuperH %s board (FPGA rev: 0x%0x, CCR: 0x%0x)\n", - get_system_type(), fpgaRevision, *CacheControlRegister); -} - - -/****************************************************************************/ - - - /* - * Setup for the SMSC FDC37C93xAPM - */ +/* + * Setup for the SMSC FDC37C93xAPM + */ static int __init smsc_superio_setup(void) { @@ -412,8 +355,52 @@ static int __init smsc_superio_setup(void) return 0; } +static void __init microdev_setup(char **cmdline_p) +{ + int * const fpgaRevisionRegister = (int*)(MICRODEV_FPGA_GP_BASE + 0x8ul); + const int fpgaRevision = *fpgaRevisionRegister; + int * const CacheControlRegister = (int*)CCR; + + device_initcall(microdev_devices_setup); + device_initcall(smsc_superio_setup); -/* This is grotty, but, because kernel is always referenced on the link line - * before any devices, this is safe. + printk("SuperH %s board (FPGA rev: 0x%0x, CCR: 0x%0x)\n", + get_system_type(), fpgaRevision, *CacheControlRegister); +} + +/* + * The Machine Vector */ -__initcall(smsc_superio_setup); +struct sh_machine_vector mv_sh4202_microdev __initmv = { + .mv_name = "SH4-202 MicroDev", + .mv_setup = microdev_setup, + .mv_nr_irqs = 72, /* QQQ need to check this - use the MACRO */ + + .mv_inb = microdev_inb, + .mv_inw = microdev_inw, + .mv_inl = microdev_inl, + .mv_outb = microdev_outb, + .mv_outw = microdev_outw, + .mv_outl = microdev_outl, + + .mv_inb_p = microdev_inb_p, + .mv_inw_p = microdev_inw_p, + .mv_inl_p = microdev_inl_p, + .mv_outb_p = microdev_outb_p, + .mv_outw_p = microdev_outw_p, + .mv_outl_p = microdev_outl_p, + + .mv_insb = microdev_insb, + .mv_insw = microdev_insw, + .mv_insl = microdev_insl, + .mv_outsb = microdev_outsb, + .mv_outsw = microdev_outsw, + .mv_outsl = microdev_outsl, + + .mv_init_irq = init_microdev_irq, + +#ifdef CONFIG_HEARTBEAT + .mv_heartbeat = microdev_heartbeat, +#endif +}; +ALIAS_MV(sh4202_microdev) diff --git a/arch/sh/boards/titan/setup.c b/arch/sh/boards/titan/setup.c index c8b431c1d0fd..52b66d8b8d2a 100644 --- a/arch/sh/boards/titan/setup.c +++ b/arch/sh/boards/titan/setup.c @@ -20,19 +20,8 @@ static void __init init_titan_irq(void) make_ipr_irq( TITAN_IRQ_USB, IRL3_IPR_ADDR, IRL3_IPR_POS, IRL3_PRIORITY); /* PCIRQ3 */ } -const char *get_system_type(void) -{ - return "Titan"; -} - -int __init platform_setup(void) -{ - printk("%s Platform Setup\n", get_system_type()); - return 0; -} - struct sh_machine_vector mv_titan __initmv = { - .mv_nr_irqs = NR_IRQS, + .mv_name = "Titan", .mv_inb = titan_inb, .mv_inw = titan_inw, diff --git a/arch/sh/boards/unknown/setup.c b/arch/sh/boards/unknown/setup.c index c5e4ed10876b..1c941370a2e3 100644 --- a/arch/sh/boards/unknown/setup.c +++ b/arch/sh/boards/unknown/setup.c @@ -14,19 +14,8 @@ */ #include #include -#include struct sh_machine_vector mv_unknown __initmv = { - .mv_nr_irqs = NR_IRQS, + .mv_name = "Unknown", }; ALIAS_MV(unknown) - -const char *get_system_type(void) -{ - return "Unknown"; -} - -void __init platform_setup(void) -{ -} - diff --git a/arch/sh/kernel/setup.c b/arch/sh/kernel/setup.c index 86ef17fe48b5..de8df969d6af 100644 --- a/arch/sh/kernel/setup.c +++ b/arch/sh/kernel/setup.c @@ -43,27 +43,14 @@ extern void * __rd_start, * __rd_end; * The bigger value means no problem. */ struct sh_cpuinfo boot_cpu_data = { CPU_SH_NONE, 10000000, }; +#ifdef CONFIG_VT struct screen_info screen_info; +#endif #if defined(CONFIG_SH_UNKNOWN) struct sh_machine_vector sh_mv; #endif -/* We need this to satisfy some external references. */ -struct screen_info screen_info = { - 0, 25, /* orig-x, orig-y */ - 0, /* unused */ - 0, /* orig-video-page */ - 0, /* orig-video-mode */ - 80, /* orig-video-cols */ - 0,0,0, /* ega_ax, ega_bx, ega_cx */ - 25, /* orig-video-lines */ - 0, /* orig-video-isVGA */ - 16 /* orig-video-points */ -}; - -extern void platform_setup(void); -extern char *get_system_type(void); extern int root_mountflags; #define MV_NAME_SIZE 32 @@ -90,29 +77,8 @@ static struct sh_machine_vector* __init get_mv_byname(const char* name); static char command_line[COMMAND_LINE_SIZE] = { 0, }; -struct resource standard_io_resources[] = { - { "dma1", 0x00, 0x1f }, - { "pic1", 0x20, 0x3f }, - { "timer", 0x40, 0x5f }, - { "keyboard", 0x60, 0x6f }, - { "dma page reg", 0x80, 0x8f }, - { "pic2", 0xa0, 0xbf }, - { "dma2", 0xc0, 0xdf }, - { "fpu", 0xf0, 0xff } -}; - -#define STANDARD_IO_RESOURCES (sizeof(standard_io_resources)/sizeof(struct resource)) - -/* System RAM - interrupted by the 640kB-1M hole */ -#define code_resource (ram_resources[3]) -#define data_resource (ram_resources[4]) -static struct resource ram_resources[] = { - { "System RAM", 0x000000, 0x09ffff, IORESOURCE_BUSY }, - { "System RAM", 0x100000, 0x100000, IORESOURCE_BUSY }, - { "Video RAM area", 0x0a0000, 0x0bffff }, - { "Kernel code", 0x100000, 0 }, - { "Kernel data", 0, 0 } -}; +static struct resource code_resource = { .name = "Kernel code", }; +static struct resource data_resource = { .name = "Kernel data", }; unsigned long memory_start, memory_end; @@ -255,6 +221,9 @@ static int __init sh_mv_setup(char **cmdline_p) __set_io_port_base(mv_io_base); #endif + if (!sh_mv.mv_nr_irqs) + sh_mv.mv_nr_irqs = NR_IRQS; + return 0; } @@ -263,7 +232,6 @@ void __init setup_arch(char **cmdline_p) unsigned long bootmap_size; unsigned long start_pfn, max_pfn, max_low_pfn; - #ifdef CONFIG_CMDLINE_BOOL strcpy(COMMAND_LINE, CONFIG_CMDLINE); #endif @@ -382,14 +350,14 @@ void __init setup_arch(char **cmdline_p) #endif /* Perform the machine specific initialisation */ - platform_setup(); + if (likely(sh_mv.mv_setup)) + sh_mv.mv_setup(cmdline_p); paging_init(); } struct sh_machine_vector* __init get_mv_byname(const char* name) { - extern int strcasecmp(const char *, const char *); extern long __machvec_start, __machvec_end; struct sh_machine_vector *all_vecs = (struct sh_machine_vector *)&__machvec_start; @@ -467,7 +435,8 @@ static void show_cpuflags(struct seq_file *m) seq_printf(m, "\n"); } -static void show_cacheinfo(struct seq_file *m, const char *type, struct cache_info info) +static void show_cacheinfo(struct seq_file *m, const char *type, + struct cache_info info) { unsigned int cache_size; @@ -624,4 +593,3 @@ static int __init kgdb_parse_options(char *options) } __setup("kgdb=", kgdb_parse_options); #endif /* CONFIG_SH_KGDB */ - diff --git a/include/asm-sh/machvec.h b/include/asm-sh/machvec.h index 550501fa4fed..70389b72ffef 100644 --- a/include/asm-sh/machvec.h +++ b/include/asm-sh/machvec.h @@ -8,17 +8,18 @@ */ #ifndef _ASM_SH_MACHVEC_H -#define _ASM_SH_MACHVEC_H 1 +#define _ASM_SH_MACHVEC_H #include #include - #include #include struct device; struct sh_machine_vector { + void (*mv_setup)(char **cmdline_p); + const char *mv_name; int mv_nr_irqs; u8 (*mv_inb)(unsigned long); @@ -65,4 +66,6 @@ struct sh_machine_vector { extern struct sh_machine_vector sh_mv; +#define get_system_type() sh_mv.mv_name + #endif /* _ASM_SH_MACHVEC_H */ -- cgit v1.2.3 From d153ea88dccf003173315b5d21acabebb897fb4a Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Wed, 27 Sep 2006 18:20:16 +0900 Subject: sh: stack debugging support. This adds a DEBUG_STACK_USAGE and DEBUG_STACKOVERFLOW for SH. Signed-off-by: Paul Mundt --- arch/sh/Kconfig.debug | 16 ++++++++++++++++ arch/sh/kernel/head.S | 4 +++- arch/sh/kernel/irq.c | 17 ++++++++++++++++- arch/sh/kernel/vmlinux.lds.S | 14 ++++++++------ include/asm-sh/page.h | 2 +- include/asm-sh/thread_info.h | 12 ++++++++---- 6 files changed, 52 insertions(+), 13 deletions(-) (limited to 'include') diff --git a/arch/sh/Kconfig.debug b/arch/sh/Kconfig.debug index 75ed1be8a49e..f0188e626be0 100644 --- a/arch/sh/Kconfig.debug +++ b/arch/sh/Kconfig.debug @@ -30,6 +30,22 @@ config EARLY_PRINTK when the kernel may crash or hang before the serial console is initialised. If unsure, say N. +config DEBUG_STACKOVERFLOW + bool "Check for stack overflows" + depends on DEBUG_KERNEL + help + This option will cause messages to be printed if free stack space + drops below a certain limit. + +config DEBUG_STACK_USAGE + bool "Stack utilization instrumentation" + depends on DEBUG_KERNEL + help + Enables the display of the minimum amount of free stack which each + task has ever had available in the sysrq-T and sysrq-P debug output. + + This option will slow down process creation somewhat. + config KGDB bool "Include KGDB kernel debugger" select FRAME_POINTER diff --git a/arch/sh/kernel/head.S b/arch/sh/kernel/head.S index c5e363872b91..3e7d00b7985a 100644 --- a/arch/sh/kernel/head.S +++ b/arch/sh/kernel/head.S @@ -11,6 +11,8 @@ * Head.S contains the SH exception handlers and startup code. */ #include +#include +#include #ifdef CONFIG_CPU_SH4A #define SYNCO() synco @@ -95,7 +97,7 @@ ENTRY(_stext) .balign 4 1: .long 0x400080F0 ! MD=1, RB=0, BL=0, FD=1, IMASK=0xF -2: .long init_thread_union+8192 +2: .long init_thread_union+THREAD_SIZE 3: .long __bss_start 4: .long _end 5: .long start_kernel diff --git a/arch/sh/kernel/irq.c b/arch/sh/kernel/irq.c index c2e07f7f3496..7066611aeb72 100644 --- a/arch/sh/kernel/irq.c +++ b/arch/sh/kernel/irq.c @@ -60,7 +60,6 @@ unlock: } #endif - asmlinkage int do_IRQ(unsigned long r4, unsigned long r5, unsigned long r6, unsigned long r7, struct pt_regs regs) @@ -69,6 +68,22 @@ asmlinkage int do_IRQ(unsigned long r4, unsigned long r5, irq_enter(); +#ifdef CONFIG_DEBUG_STACKOVERFLOW + /* Debugging check for stack overflow: is there less than 1KB free? */ + { + long sp; + + __asm__ __volatile__ ("and r15, %0" : + "=r" (sp) : "0" (THREAD_SIZE - 1)); + + if (unlikely(sp < (sizeof(struct thread_info) + STACK_WARN))) { + printk("do_IRQ: stack overflow: %ld\n", + sp - sizeof(struct thread_info)); + dump_stack(); + } + } +#endif + #ifdef CONFIG_CPU_HAS_INTEVT __asm__ __volatile__ ( #ifdef CONFIG_CPU_HAS_SR_RB diff --git a/arch/sh/kernel/vmlinux.lds.S b/arch/sh/kernel/vmlinux.lds.S index eb860c51c697..0220d8a838a7 100644 --- a/arch/sh/kernel/vmlinux.lds.S +++ b/arch/sh/kernel/vmlinux.lds.S @@ -2,6 +2,8 @@ * ld script to make SuperH Linux kernel * Written by Niibe Yutaka */ +#include +#include #include #ifdef CONFIG_CPU_LITTLE_ENDIAN @@ -40,16 +42,16 @@ SECTIONS *(.data) /* Align the initial ramdisk image (INITRD) on page boundaries. */ - . = ALIGN(4096); + . = ALIGN(PAGE_SIZE); __rd_start = .; *(.initrd) - . = ALIGN(4096); + . = ALIGN(PAGE_SIZE); __rd_end = .; CONSTRUCTORS } - . = ALIGN(4096); + . = ALIGN(PAGE_SIZE); .data.page_aligned : { *(.data.idt) } . = ALIGN(32); @@ -60,10 +62,10 @@ SECTIONS _edata = .; /* End of data section */ - . = ALIGN(8192); /* init_task */ + . = ALIGN(THREAD_SIZE); /* init_task */ .data.init_task : { *(.data.init_task) } - . = ALIGN(4096); /* Init code and data */ + . = ALIGN(PAGE_SIZE); /* Init code and data */ __init_begin = .; _sinittext = .; .init.text : { *(.init.text) } @@ -94,7 +96,7 @@ SECTIONS __machvec_start = .; .init.machvec : { *(.init.machvec) } __machvec_end = .; - . = ALIGN(4096); + . = ALIGN(PAGE_SIZE); __init_end = .; . = ALIGN(4); diff --git a/include/asm-sh/page.h b/include/asm-sh/page.h index e9135532d00c..888d6fe0030e 100644 --- a/include/asm-sh/page.h +++ b/include/asm-sh/page.h @@ -16,7 +16,7 @@ /* PAGE_SHIFT determines the page size */ #define PAGE_SHIFT 12 -#define PAGE_SIZE (1UL << PAGE_SHIFT) +#define PAGE_SIZE (1 << PAGE_SHIFT) #define PAGE_MASK (~(PAGE_SIZE-1)) #define PTE_MASK PAGE_MASK diff --git a/include/asm-sh/thread_info.h b/include/asm-sh/thread_info.h index 5eb874b065a6..605259f88113 100644 --- a/include/asm-sh/thread_info.h +++ b/include/asm-sh/thread_info.h @@ -29,6 +29,8 @@ struct thread_info { #endif #define PREEMPT_ACTIVE 0x10000000 +#define THREAD_SIZE (PAGE_SIZE * 2) +#define STACK_WARN (THREAD_SIZE / 8) /* * macros/functions for gaining access to the thread information structure @@ -50,8 +52,6 @@ struct thread_info { #define init_thread_info (init_thread_union.thread_info) #define init_stack (init_thread_union.stack) -#define THREAD_SIZE (2*PAGE_SIZE) - /* how to get the thread information struct from C */ static inline struct thread_info *current_thread_info(void) { @@ -73,8 +73,12 @@ static inline struct thread_info *current_thread_info(void) } /* thread information allocation */ -#define alloc_thread_info(ti) ((struct thread_info *) __get_free_pages(GFP_KERNEL,1)) -#define free_thread_info(ti) free_pages((unsigned long) (ti), 1) +#ifdef CONFIG_DEBUG_STACK_USAGE +#define alloc_thread_info(ti) kzalloc(THREAD_SIZE, GFP_KERNEL) +#else +#define alloc_thread_info(ti) kmalloc(THREAD_SIZE, GFP_KERNEL) +#endif +#define free_thread_info(ti) kfree(ti) #else /* !__ASSEMBLY__ */ -- cgit v1.2.3 From a6a31139897a5e539efe7ad3b7bd351fa9673ce8 Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Wed, 27 Sep 2006 18:22:14 +0900 Subject: sh: Add support for 4K stacks. This enables support for 4K stacks on SH. Currently this depends on DEBUG_KERNEL, but likely all boards will switch to this as the default in the future. Signed-off-by: Paul Mundt --- arch/sh/Kconfig.debug | 10 +++ arch/sh/kernel/cpu/irq/ipr.c | 2 + arch/sh/kernel/entry.S | 4 +- arch/sh/kernel/head.S | 5 +- arch/sh/kernel/irq.c | 153 +++++++++++++++++++++++++++++++++++++++++-- arch/sh/kernel/traps.c | 18 ++--- arch/sh/kernel/vmlinux.lds.S | 1 - include/asm-sh/irq.h | 9 +++ include/asm-sh/thread_info.h | 12 +++- 9 files changed, 190 insertions(+), 24 deletions(-) (limited to 'include') diff --git a/arch/sh/Kconfig.debug b/arch/sh/Kconfig.debug index f0188e626be0..48479e014dac 100644 --- a/arch/sh/Kconfig.debug +++ b/arch/sh/Kconfig.debug @@ -46,6 +46,16 @@ config DEBUG_STACK_USAGE This option will slow down process creation somewhat. +config 4KSTACKS + bool "Use 4Kb for kernel stacks instead of 8Kb" + depends on DEBUG_KERNEL + help + If you say Y here the kernel will use a 4Kb stacksize for the + kernel stack attached to each process/thread. This facilitates + running more threads on a system and also reduces the pressure + on the VM subsystem for higher order allocations. This option + will also use IRQ stacks to compensate for the reduced stackspace. + config KGDB bool "Include KGDB kernel debugger" select FRAME_POINTER diff --git a/arch/sh/kernel/cpu/irq/ipr.c b/arch/sh/kernel/cpu/irq/ipr.c index 4c4fd4118d1a..f785822cd5de 100644 --- a/arch/sh/kernel/cpu/irq/ipr.c +++ b/arch/sh/kernel/cpu/irq/ipr.c @@ -190,6 +190,8 @@ void __init init_IRQ(void) /* Perform the machine specific initialisation */ if (sh_mv.mv_init_irq != NULL) sh_mv.mv_init_irq(); + + irq_ctx_init(smp_processor_id()); } #if !defined(CONFIG_CPU_HAS_PINT_IRQ) diff --git a/arch/sh/kernel/entry.S b/arch/sh/kernel/entry.S index fd5fe2349f20..fe8221855b28 100644 --- a/arch/sh/kernel/entry.S +++ b/arch/sh/kernel/entry.S @@ -716,8 +716,8 @@ ENTRY(handle_exception) bt/s 1f ! It's a kernel to kernel transition. mov r15, k0 ! save original stack to k0 /* User space to kernel */ - mov #0x20, k1 - shll8 k1 ! k1 := 8192 (== THREAD_SIZE) + mov #(THREAD_SIZE >> 8), k1 + shll8 k1 ! k1 := THREAD_SIZE add current, k1 mov k1, r15 ! change to kernel stack ! diff --git a/arch/sh/kernel/head.S b/arch/sh/kernel/head.S index 3e7d00b7985a..f5f53d14f245 100644 --- a/arch/sh/kernel/head.S +++ b/arch/sh/kernel/head.S @@ -12,7 +12,6 @@ */ #include #include -#include #ifdef CONFIG_CPU_SH4A #define SYNCO() synco @@ -69,8 +68,8 @@ ENTRY(_stext) ! mov.l 2f, r0 mov r0, r15 ! Set initial r15 (stack pointer) - mov #0x20, r1 ! - shll8 r1 ! r1 = 8192 + mov #(THREAD_SIZE >> 8), r1 + shll8 r1 ! r1 = THREAD_SIZE sub r1, r0 ! ldc r0, r7_bank ! ... and initial thread_info diff --git a/arch/sh/kernel/irq.c b/arch/sh/kernel/irq.c index 7066611aeb72..c7ebd6aec951 100644 --- a/arch/sh/kernel/irq.c +++ b/arch/sh/kernel/irq.c @@ -1,5 +1,4 @@ -/* $Id: irq.c,v 1.20 2004/01/13 05:52:11 kkojima Exp $ - * +/* * linux/arch/sh/kernel/irq.c * * Copyright (C) 1992, 1998 Linus Torvalds, Ingo Molnar @@ -7,13 +6,15 @@ * * SuperH version: Copyright (C) 1999 Niibe Yutaka */ - #include #include +#include #include #include #include #include +#include +#include #include /* @@ -60,11 +61,27 @@ unlock: } #endif +#ifdef CONFIG_4KSTACKS +/* + * per-CPU IRQ handling contexts (thread information and stack) + */ +union irq_ctx { + struct thread_info tinfo; + u32 stack[THREAD_SIZE/sizeof(u32)]; +}; + +static union irq_ctx *hardirq_ctx[NR_CPUS]; +static union irq_ctx *softirq_ctx[NR_CPUS]; +#endif + asmlinkage int do_IRQ(unsigned long r4, unsigned long r5, unsigned long r6, unsigned long r7, struct pt_regs regs) { int irq = r4; +#ifdef CONFIG_4KSTACKS + union irq_ctx *curctx, *irqctx; +#endif irq_enter(); @@ -102,7 +119,135 @@ asmlinkage int do_IRQ(unsigned long r4, unsigned long r5, #endif irq = irq_demux(irq); - __do_IRQ(irq, ®s); + +#ifdef CONFIG_4KSTACKS + curctx = (union irq_ctx *)current_thread_info(); + irqctx = hardirq_ctx[smp_processor_id()]; + + /* + * this is where we switch to the IRQ stack. However, if we are + * already using the IRQ stack (because we interrupted a hardirq + * handler) we can't do that and just have to keep using the + * current stack (which is the irq stack already after all) + */ + if (curctx != irqctx) { + u32 *isp; + + isp = (u32 *)((char *)irqctx + sizeof(*irqctx)); + irqctx->tinfo.task = curctx->tinfo.task; + irqctx->tinfo.previous_sp = current_stack_pointer; + + __asm__ __volatile__ ( + "mov %0, r4 \n" + "mov %1, r5 \n" + "mov r15, r9 \n" + "jsr @%2 \n" + /* swith to the irq stack */ + " mov %3, r15 \n" + /* restore the stack (ring zero) */ + "mov r9, r15 \n" + : /* no outputs */ + : "r" (irq), "r" (®s), "r" (__do_IRQ), "r" (isp) + /* XXX: A somewhat excessive clobber list? -PFM */ + : "memory", "r0", "r1", "r2", "r3", "r4", + "r5", "r6", "r7", "r8", "t", "pr" + ); + } else +#endif + __do_IRQ(irq, ®s); + irq_exit(); + return 1; } + +#ifdef CONFIG_4KSTACKS +/* + * These should really be __section__(".bss.page_aligned") as well, but + * gcc's 3.0 and earlier don't handle that correctly. + */ +static char softirq_stack[NR_CPUS * THREAD_SIZE] + __attribute__((__aligned__(THREAD_SIZE))); + +static char hardirq_stack[NR_CPUS * THREAD_SIZE] + __attribute__((__aligned__(THREAD_SIZE))); + +/* + * allocate per-cpu stacks for hardirq and for softirq processing + */ +void irq_ctx_init(int cpu) +{ + union irq_ctx *irqctx; + + if (hardirq_ctx[cpu]) + return; + + irqctx = (union irq_ctx *)&hardirq_stack[cpu * THREAD_SIZE]; + irqctx->tinfo.task = NULL; + irqctx->tinfo.exec_domain = NULL; + irqctx->tinfo.cpu = cpu; + irqctx->tinfo.preempt_count = HARDIRQ_OFFSET; + irqctx->tinfo.addr_limit = MAKE_MM_SEG(0); + + hardirq_ctx[cpu] = irqctx; + + irqctx = (union irq_ctx *)&softirq_stack[cpu * THREAD_SIZE]; + irqctx->tinfo.task = NULL; + irqctx->tinfo.exec_domain = NULL; + irqctx->tinfo.cpu = cpu; + irqctx->tinfo.preempt_count = SOFTIRQ_OFFSET; + irqctx->tinfo.addr_limit = MAKE_MM_SEG(0); + + softirq_ctx[cpu] = irqctx; + + printk("CPU %u irqstacks, hard=%p soft=%p\n", + cpu, hardirq_ctx[cpu], softirq_ctx[cpu]); +} + +void irq_ctx_exit(int cpu) +{ + hardirq_ctx[cpu] = NULL; +} + +extern asmlinkage void __do_softirq(void); + +asmlinkage void do_softirq(void) +{ + unsigned long flags; + struct thread_info *curctx; + union irq_ctx *irqctx; + u32 *isp; + + if (in_interrupt()) + return; + + local_irq_save(flags); + + if (local_softirq_pending()) { + curctx = current_thread_info(); + irqctx = softirq_ctx[smp_processor_id()]; + irqctx->tinfo.task = curctx->task; + irqctx->tinfo.previous_sp = current_stack_pointer; + + /* build the stack frame on the softirq stack */ + isp = (u32 *)((char *)irqctx + sizeof(*irqctx)); + + __asm__ __volatile__ ( + "mov r15, r9 \n" + "jsr @%0 \n" + /* switch to the softirq stack */ + " mov %1, r15 \n" + /* restore the thread stack */ + "mov r9, r15 \n" + : /* no outputs */ + : "r" (__do_softirq), "r" (isp) + /* XXX: A somewhat excessive clobber list? -PFM */ + : "memory", "r0", "r1", "r2", "r3", "r4", + "r5", "r6", "r7", "r8", "r9", "r15", "t", "pr" + ); + } + + local_irq_restore(flags); +} +EXPORT_SYMBOL(do_softirq); +#endif diff --git a/arch/sh/kernel/traps.c b/arch/sh/kernel/traps.c index 95c810b3c97e..c2c597e09482 100644 --- a/arch/sh/kernel/traps.c +++ b/arch/sh/kernel/traps.c @@ -741,20 +741,12 @@ void show_stack(struct task_struct *tsk, unsigned long *sp) unsigned long module_end = VMALLOC_END; int i = 1; - if (tsk && !sp) { + if (!tsk) + tsk = current; + if (tsk == current) + sp = (unsigned long *)current_stack_pointer; + else sp = (unsigned long *)tsk->thread.sp; - } - - if (!sp) { - __asm__ __volatile__ ( - "mov r15, %0\n\t" - "stc r7_bank, %1\n\t" - : "=r" (module_start), - "=r" (module_end) - ); - - sp = (unsigned long *)module_start; - } stack = sp; diff --git a/arch/sh/kernel/vmlinux.lds.S b/arch/sh/kernel/vmlinux.lds.S index 0220d8a838a7..5eb930918186 100644 --- a/arch/sh/kernel/vmlinux.lds.S +++ b/arch/sh/kernel/vmlinux.lds.S @@ -3,7 +3,6 @@ * Written by Niibe Yutaka */ #include -#include #include #ifdef CONFIG_CPU_LITTLE_ENDIAN diff --git a/include/asm-sh/irq.h b/include/asm-sh/irq.h index dd05e102fc0e..0e5f365aff70 100644 --- a/include/asm-sh/irq.h +++ b/include/asm-sh/irq.h @@ -719,6 +719,15 @@ static inline int generic_irq_demux(int irq) #define irq_canonicalize(irq) (irq) #define irq_demux(irq) __irq_demux(sh_mv.mv_irq_demux(irq)) +#ifdef CONFIG_4KSTACKS +extern void irq_ctx_init(int cpu); +extern void irq_ctx_exit(int cpu); +# define __ARCH_HAS_DO_SOFTIRQ +#else +# define irq_ctx_init(cpu) do { } while (0) +# define irq_ctx_exit(cpu) do { } while (0) +#endif + #if defined(CONFIG_CPU_SUBTYPE_SH73180) #include #endif diff --git a/include/asm-sh/thread_info.h b/include/asm-sh/thread_info.h index 605259f88113..3ebc3f9039eb 100644 --- a/include/asm-sh/thread_info.h +++ b/include/asm-sh/thread_info.h @@ -9,8 +9,8 @@ * Copyright (C) 2002 David Howells (dhowells@redhat.com) * - Incorporating suggestions made by Linus Torvalds and Dave Miller */ - #ifdef __KERNEL__ +#include #ifndef __ASSEMBLY__ #include @@ -23,13 +23,20 @@ struct thread_info { int preempt_count; /* 0 => preemptable, <0 => BUG */ mm_segment_t addr_limit; /* thread address space */ struct restart_block restart_block; + unsigned long previous_sp; /* sp of previous stack in case + of nested IRQ stacks */ __u8 supervisor_stack[0]; }; #endif #define PREEMPT_ACTIVE 0x10000000 + +#ifdef CONFIG_4KSTACKS +#define THREAD_SIZE (PAGE_SIZE) +#else #define THREAD_SIZE (PAGE_SIZE * 2) +#endif #define STACK_WARN (THREAD_SIZE / 8) /* @@ -52,6 +59,9 @@ struct thread_info { #define init_thread_info (init_thread_union.thread_info) #define init_stack (init_thread_union.stack) +/* how to get the current stack pointer from C */ +register unsigned long current_stack_pointer asm("r15") __attribute_used__; + /* how to get the thread information struct from C */ static inline struct thread_info *current_thread_info(void) { -- cgit v1.2.3 From 315bb96824149614efe4844ded077a13fc908880 Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Wed, 27 Sep 2006 18:22:53 +0900 Subject: sh: CPU flags in AT_HWCAP in ELF auxvt. Encode processor flags in AT_HWCAP in the ELF auxiliary vector. Signed-off-by: Paul Mundt --- arch/sh/kernel/cpu/sh4/probe.c | 8 +++++--- include/asm-sh/cpu-features.h | 15 +++++++++++++++ include/asm-sh/elf.h | 10 ++++++---- include/asm-sh/processor.h | 12 +----------- 4 files changed, 27 insertions(+), 18 deletions(-) create mode 100644 include/asm-sh/cpu-features.h (limited to 'include') diff --git a/arch/sh/kernel/cpu/sh4/probe.c b/arch/sh/kernel/cpu/sh4/probe.c index 6e8a2b5268e8..0e65aa6ddcaa 100644 --- a/arch/sh/kernel/cpu/sh4/probe.c +++ b/arch/sh/kernel/cpu/sh4/probe.c @@ -76,6 +76,7 @@ int __init detect_cpu_and_cache_system(void) cpu_data->type = CPU_SH73180; cpu_data->icache.ways = 4; cpu_data->dcache.ways = 4; + cpu_data->flags |= CPU_HAS_LLSC; break; case 0x2001: case 0x2004: @@ -83,7 +84,7 @@ int __init detect_cpu_and_cache_system(void) cpu_data->icache.ways = 4; cpu_data->dcache.ways = 4; - cpu_data->flags |= CPU_HAS_FPU; + cpu_data->flags |= CPU_HAS_FPU | CPU_HAS_LLSC; break; case 0x2006: case 0x200A: @@ -95,13 +96,15 @@ int __init detect_cpu_and_cache_system(void) cpu_data->icache.ways = 4; cpu_data->dcache.ways = 4; - cpu_data->flags |= CPU_HAS_FPU | CPU_HAS_PERF_COUNTER; + cpu_data->flags |= CPU_HAS_FPU | CPU_HAS_PERF_COUNTER | + CPU_HAS_LLSC; break; case 0x3000: case 0x3003: cpu_data->type = CPU_SH7343; cpu_data->icache.ways = 4; cpu_data->dcache.ways = 4; + cpu_data->flags |= CPU_HAS_LLSC; break; case 0x8000: cpu_data->type = CPU_ST40RA; @@ -180,4 +183,3 @@ int __init detect_cpu_and_cache_system(void) return 0; } - diff --git a/include/asm-sh/cpu-features.h b/include/asm-sh/cpu-features.h new file mode 100644 index 000000000000..e398947ec01d --- /dev/null +++ b/include/asm-sh/cpu-features.h @@ -0,0 +1,15 @@ +#ifndef __ASM_SH_CPU_FEATURES_H +#define __ASM_SH_CPU_FEATURES_H + +/* + * Processor flags + */ +#define CPU_HAS_FPU 0x0001 /* Hardware FPU support */ +#define CPU_HAS_P2_FLUSH_BUG 0x0002 /* Need to flush the cache in P2 area */ +#define CPU_HAS_MMU_PAGE_ASSOC 0x0004 /* SH3: TLB way selection bit support */ +#define CPU_HAS_DSP 0x0008 /* SH-DSP: DSP support */ +#define CPU_HAS_PERF_COUNTER 0x0010 /* Hardware performance counters */ +#define CPU_HAS_PTEA 0x0020 /* PTEA register */ +#define CPU_HAS_LLSC 0x0040 /* movli.l/movco.l */ + +#endif /* __ASM_SH_CPU_FEATURES_H */ diff --git a/include/asm-sh/elf.h b/include/asm-sh/elf.h index 1b63dfeea4f2..cc8e5e767345 100644 --- a/include/asm-sh/elf.h +++ b/include/asm-sh/elf.h @@ -1,6 +1,11 @@ #ifndef __ASM_SH_ELF_H #define __ASM_SH_ELF_H +#include +#include +#include +#include + /* SH relocation types */ #define R_SH_NONE 0 #define R_SH_DIR32 1 @@ -46,9 +51,6 @@ * ELF register definitions.. */ -#include -#include - typedef unsigned long elf_greg_t; #define ELF_NGREG (sizeof (struct pt_regs) / sizeof(elf_greg_t)) @@ -91,7 +93,7 @@ typedef struct user_fpu_struct elf_fpregset_t; 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) +#define ELF_HWCAP (boot_cpu_data.flags) /* This yields a string that ld.so will use to load implementation specific libraries for optimization. This is more specific in diff --git a/include/asm-sh/processor.h b/include/asm-sh/processor.h index 3b3ef4f2bf31..bdd472705546 100644 --- a/include/asm-sh/processor.h +++ b/include/asm-sh/processor.h @@ -14,6 +14,7 @@ #include #include #include +#include /* * Default implementation of macro that returns current @@ -127,17 +128,6 @@ union sh_fpu_union { struct sh_fpu_soft_struct soft; }; -/* - * Processor flags - */ - -#define CPU_HAS_FPU 0x0001 /* Hardware FPU support */ -#define CPU_HAS_P2_FLUSH_BUG 0x0002 /* Need to flush the cache in P2 area */ -#define CPU_HAS_MMU_PAGE_ASSOC 0x0004 /* SH3: TLB way selection bit support */ -#define CPU_HAS_DSP 0x0008 /* SH-DSP: DSP support */ -#define CPU_HAS_PERF_COUNTER 0x0010 /* Hardware performance counters */ -#define CPU_HAS_PTEA 0x0020 /* PTEA register */ - struct thread_struct { unsigned long sp; unsigned long pc; -- cgit v1.2.3 From 2220d164933a8776d1336c814e3c2e5573256d34 Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Wed, 27 Sep 2006 18:24:28 +0900 Subject: sh: Report movli.l/movco.l capabilities. Add llsc to cpu_flags[] and comment cpu-features.h. Signed-off-by: Jamie Lenehan Signed-off-by: Paul Mundt --- arch/sh/kernel/setup.c | 4 +++- include/asm-sh/cpu-features.h | 8 ++++++++ 2 files changed, 11 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/arch/sh/kernel/setup.c b/arch/sh/kernel/setup.c index de8df969d6af..6810de3f8ed2 100644 --- a/arch/sh/kernel/setup.c +++ b/arch/sh/kernel/setup.c @@ -413,8 +413,10 @@ const char *get_cpu_subtype(void) } #ifdef CONFIG_PROC_FS +/* Symbolic CPU flags, keep in sync with asm/cpu-features.h */ static const char *cpu_flags[] = { - "none", "fpu", "p2flush", "mmuassoc", "dsp", "perfctr", "ptea", NULL + "none", "fpu", "p2flush", "mmuassoc", "dsp", "perfctr", + "ptea", "llsc", NULL }; static void show_cpuflags(struct seq_file *m) diff --git a/include/asm-sh/cpu-features.h b/include/asm-sh/cpu-features.h index e398947ec01d..e1260aae3ee3 100644 --- a/include/asm-sh/cpu-features.h +++ b/include/asm-sh/cpu-features.h @@ -3,6 +3,14 @@ /* * Processor flags + * + * Note: When adding a new flag, keep cpu_flags[] in + * arch/sh/kernel/setup.c in sync so symbolic name + * mapping of the processor flags has a chance of being + * reasonably accurate. + * + * These flags are also available through the ELF + * auxiliary vector as AT_HWCAP. */ #define CPU_HAS_FPU 0x0001 /* Hardware FPU support */ #define CPU_HAS_P2_FLUSH_BUG 0x0002 /* Need to flush the cache in P2 area */ -- cgit v1.2.3 From 05ae91585167410dadd1bc8f2e207a062e638a16 Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Wed, 27 Sep 2006 18:25:24 +0900 Subject: sh: Optimized readsl()/writesl() support. Implement optimized copies of readsl()/writesl(). Signed-off-by: Paul Mundt --- arch/sh/kernel/io.c | 67 +++++++++++++++++++++++++++++++++++++++++++++++++++++ include/asm-sh/io.h | 6 +++++ 2 files changed, 73 insertions(+) (limited to 'include') diff --git a/arch/sh/kernel/io.c b/arch/sh/kernel/io.c index 71c9fde2fd90..501fe03e3715 100644 --- a/arch/sh/kernel/io.c +++ b/arch/sh/kernel/io.c @@ -61,6 +61,73 @@ void memset_io(volatile void __iomem *dst, int c, unsigned long count) } EXPORT_SYMBOL(memset_io); +void __raw_readsl(unsigned long addr, void *datap, int len) +{ + u32 *data; + + for (data = datap; (len != 0) && (((u32)data & 0x1f) != 0); len--) + *data++ = ctrl_inl(addr); + + if (likely(len >= (0x20 >> 2))) { + int tmp2, tmp3, tmp4, tmp5, tmp6; + + __asm__ __volatile__( + "1: \n\t" + "mov.l @%7, r0 \n\t" + "mov.l @%7, %2 \n\t" +#ifdef CONFIG_CPU_SH4 + "movca.l r0, @%0 \n\t" +#else + "mov.l r0, @%0 \n\t" +#endif + "mov.l @%7, %3 \n\t" + "mov.l @%7, %4 \n\t" + "mov.l @%7, %5 \n\t" + "mov.l @%7, %6 \n\t" + "mov.l @%7, r7 \n\t" + "mov.l @%7, r0 \n\t" + "mov.l %2, @(0x04,%0) \n\t" + "mov #0x20>>2, %2 \n\t" + "mov.l %3, @(0x08,%0) \n\t" + "sub %2, %1 \n\t" + "mov.l %4, @(0x0c,%0) \n\t" + "cmp/hi %1, %2 ! T if 32 > len \n\t" + "mov.l %5, @(0x10,%0) \n\t" + "mov.l %6, @(0x14,%0) \n\t" + "mov.l r7, @(0x18,%0) \n\t" + "mov.l r0, @(0x1c,%0) \n\t" + "bf.s 1b \n\t" + " add #0x20, %0 \n\t" + : "=&r" (data), "=&r" (len), + "=&r" (tmp2), "=&r" (tmp3), "=&r" (tmp4), + "=&r" (tmp5), "=&r" (tmp6) + : "r"(addr), "0" (data), "1" (len) + : "r0", "r7", "t", "memory"); + } + + for (; len != 0; len--) + *data++ = ctrl_inl(addr); +} +EXPORT_SYMBOL(__raw_readsl); + +void __raw_writesl(unsigned long addr, const void *data, int len) +{ + if (likely(len != 0)) { + int tmp1; + + __asm__ __volatile__ ( + "1: \n\t" + "mov.l @%0+, %1 \n\t" + "dt %3 \n\t" + "bf.s 1b \n\t" + " mov.l %1, @%4 \n\t" + : "=&r" (data), "=&r" (tmp1) + : "0" (data), "r" (len), "r"(addr) + : "t", "memory"); + } +} +EXPORT_SYMBOL(__raw_writesl); + void __iomem *ioport_map(unsigned long port, unsigned int nr) { return sh_mv.mv_ioport_map(port, nr); diff --git a/include/asm-sh/io.h b/include/asm-sh/io.h index 377160b86295..ed12d38e8c00 100644 --- a/include/asm-sh/io.h +++ b/include/asm-sh/io.h @@ -107,6 +107,9 @@ #define __raw_writew(v, a) __writew(v, (void __iomem *)(a)) #define __raw_writel(v, a) __writel(v, (void __iomem *)(a)) +void __raw_writesl(unsigned long addr, const void *data, int longlen); +void __raw_readsl(unsigned long addr, void *data, int longlen); + /* * The platform header files may define some of these macros to use * the inlined versions where appropriate. These macros may also be @@ -132,6 +135,9 @@ # define writel(v,a) ({ __raw_writel((v),(a)); mb(); }) #endif +#define writesl __raw_writesl +#define readsl __raw_readsl + #define readb_relaxed(a) readb(a) #define readw_relaxed(a) readw(a) #define readl_relaxed(a) readl(a) -- cgit v1.2.3 From 9d549a7d8ef71f684a35cf1e438543957cf81d12 Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Wed, 27 Sep 2006 18:26:05 +0900 Subject: sh: Update kexec support for API changes. This was falling a bit behind.. Signed-off-by: Paul Mundt --- arch/sh/kernel/machine_kexec.c | 6 ------ arch/sh/kernel/process.c | 10 ---------- include/asm-sh/kexec.h | 9 +++------ 3 files changed, 3 insertions(+), 22 deletions(-) (limited to 'include') diff --git a/arch/sh/kernel/machine_kexec.c b/arch/sh/kernel/machine_kexec.c index 6bcd8d92399f..08587cdb64d6 100644 --- a/arch/sh/kernel/machine_kexec.c +++ b/arch/sh/kernel/machine_kexec.c @@ -29,12 +29,6 @@ extern const unsigned char relocate_new_kernel[]; extern const unsigned int relocate_new_kernel_size; extern void *gdb_vbr_vector; -/* - * Provide a dummy crash_notes definition while crash dump arrives to ppc. - * This prevents breakage of crash_notes attribute in kernel/ksysfs.c. - */ -void *crash_notes = NULL; - void machine_shutdown(void) { } diff --git a/arch/sh/kernel/process.c b/arch/sh/kernel/process.c index 2167746e88f1..630ec1af2483 100644 --- a/arch/sh/kernel/process.c +++ b/arch/sh/kernel/process.c @@ -81,16 +81,6 @@ void cpu_idle(void) void machine_restart(char * __unused) { - -#ifdef CONFIG_KEXEC - struct kimage *image; - image = xchg(&kexec_image, 0); - if (image) { - machine_shutdown(); - machine_kexec(image); - } -#endif - /* SR.BL=1 and invoke address error to let CPU reset (manual reset) */ asm volatile("ldc %0, sr\n\t" "mov.l @%1, %0" : : "r" (0x10000000), "r" (0x80000001)); diff --git a/include/asm-sh/kexec.h b/include/asm-sh/kexec.h index a5f85e9e428d..9d235af20cdd 100644 --- a/include/asm-sh/kexec.h +++ b/include/asm-sh/kexec.h @@ -25,11 +25,8 @@ #define MAX_NOTE_BYTES 1024 -#ifndef __ASSEMBLY__ - -extern void machine_shutdown(void); -extern void *crash_notes; - -#endif /* __ASSEMBLY__ */ +/* Provide a dummy definition to avoid build failures. */ +static inline void crash_setup_regs(struct pt_regs *newregs, + struct pt_regs *oldregs) { } #endif /* _SH_KEXEC_H */ -- cgit v1.2.3 From 72c35543f8cf1316773ffbd9619575bb84ac44fb Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Wed, 27 Sep 2006 18:27:43 +0900 Subject: sh: Support for L2 cache on newer SH-4A CPUs. This implements preliminary support for the L2 caches found on newer SH-4A CPUs. Signed-off-by: Paul Mundt --- arch/sh/kernel/cpu/sh4/probe.c | 47 +++++++++++++++++++++++++++++++++++++++++- arch/sh/kernel/setup.c | 6 +++++- include/asm-sh/cpu-features.h | 1 + include/asm-sh/processor.h | 9 ++++---- 4 files changed, 57 insertions(+), 6 deletions(-) (limited to 'include') diff --git a/arch/sh/kernel/cpu/sh4/probe.c b/arch/sh/kernel/cpu/sh4/probe.c index 0e65aa6ddcaa..bee00cac0b16 100644 --- a/arch/sh/kernel/cpu/sh4/probe.c +++ b/arch/sh/kernel/cpu/sh4/probe.c @@ -29,7 +29,7 @@ int __init detect_cpu_and_cache_system(void) [9] = (1 << 16) }; - pvr = (ctrl_inl(CCN_PVR) >> 8) & 0xffff; + pvr = (ctrl_inl(CCN_PVR) >> 8) & 0xffffff; prr = (ctrl_inl(CCN_PRR) >> 4) & 0xff; cvr = (ctrl_inl(CCN_CVR)); @@ -53,6 +53,26 @@ int __init detect_cpu_and_cache_system(void) cpu_data->dcache.ways = 1; cpu_data->dcache.linesz = L1_CACHE_BYTES; + /* + * Setup some generic flags we can probe + * (L2 and DSP detection only work on SH-4A) + */ + if (((pvr >> 16) & 0xff) == 0x10) { + if ((cvr & 0x02000000) == 0) + cpu_data->flags |= CPU_HAS_L2_CACHE; + if ((cvr & 0x10000000) == 0) + cpu_data->flags |= CPU_HAS_DSP; + + cpu_data->flags |= CPU_HAS_LLSC; + } + + /* FPU detection works for everyone */ + if ((cvr & 0x20000000) == 1) + cpu_data->flags |= CPU_HAS_FPU; + + /* Mask off the upper chip ID */ + pvr &= 0xffff; + /* * Probe the underlying processor version/revision and * adjust cpu_data setup accordingly. @@ -181,5 +201,30 @@ int __init detect_cpu_and_cache_system(void) cpu_data->dcache.way_size = cpu_data->dcache.sets * cpu_data->dcache.linesz; + /* + * Setup the L2 cache desc + * + * SH-4A's have an optional PIPT L2. + */ + if (cpu_data->flags & CPU_HAS_L2_CACHE) { + /* + * Size calculation is much more sensible + * than it is for the L1. + * + * Sizes are 128KB, 258KB, 512KB, and 1MB. + */ + size = (cvr & 0xf) << 17; + + BUG_ON(!size); + + cpu_data->scache.way_incr = (1 << 16); + cpu_data->scache.entry_shift = 5; + cpu_data->scache.entry_mask = 0xffe0; + cpu_data->scache.ways = 4; + cpu_data->scache.linesz = L1_CACHE_BYTES; + cpu_data->scache.sets = size / + (cpu_data->scache.linesz * cpu_data->scache.ways); + } + return 0; } diff --git a/arch/sh/kernel/setup.c b/arch/sh/kernel/setup.c index 6810de3f8ed2..5f587332234a 100644 --- a/arch/sh/kernel/setup.c +++ b/arch/sh/kernel/setup.c @@ -416,7 +416,7 @@ const char *get_cpu_subtype(void) /* Symbolic CPU flags, keep in sync with asm/cpu-features.h */ static const char *cpu_flags[] = { "none", "fpu", "p2flush", "mmuassoc", "dsp", "perfctr", - "ptea", "llsc", NULL + "ptea", "llsc", "l2", NULL }; static void show_cpuflags(struct seq_file *m) @@ -480,6 +480,10 @@ static int show_cpuinfo(struct seq_file *m, void *v) show_cacheinfo(m, "dcache", boot_cpu_data.dcache); } + /* Optional secondary cache */ + if (boot_cpu_data.flags & CPU_HAS_L2_CACHE) + show_cacheinfo(m, "scache", boot_cpu_data.scache); + seq_printf(m, "bogomips\t: %lu.%02lu\n", boot_cpu_data.loops_per_jiffy/(500000/HZ), (boot_cpu_data.loops_per_jiffy/(5000/HZ)) % 100); diff --git a/include/asm-sh/cpu-features.h b/include/asm-sh/cpu-features.h index e1260aae3ee3..4bccd7c032f9 100644 --- a/include/asm-sh/cpu-features.h +++ b/include/asm-sh/cpu-features.h @@ -19,5 +19,6 @@ #define CPU_HAS_PERF_COUNTER 0x0010 /* Hardware performance counters */ #define CPU_HAS_PTEA 0x0020 /* PTEA register */ #define CPU_HAS_LLSC 0x0040 /* movli.l/movco.l */ +#define CPU_HAS_L2_CACHE 0x0080 /* Secondary cache / URAM */ #endif /* __ASM_SH_CPU_FEATURES_H */ diff --git a/include/asm-sh/processor.h b/include/asm-sh/processor.h index bdd472705546..b7cba4e91a72 100644 --- a/include/asm-sh/processor.h +++ b/include/asm-sh/processor.h @@ -54,14 +54,15 @@ enum cpu_type { }; struct sh_cpuinfo { - enum cpu_type type; + unsigned int type; unsigned long loops_per_jiffy; - struct cache_info icache; - struct cache_info dcache; + struct cache_info icache; /* Primary I-cache */ + struct cache_info dcache; /* Primary D-cache */ + struct cache_info scache; /* Secondary cache */ unsigned long flags; -}; +} __attribute__ ((aligned(SMP_CACHE_BYTES))); extern struct sh_cpuinfo boot_cpu_data; -- cgit v1.2.3 From 8c12b5dc13bf8516303a8224ab4e9708b33d5b00 Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Wed, 27 Sep 2006 18:31:06 +0900 Subject: sh: Clean up PAGE_SIZE definition for assembly use. We want to be able to use PAGE_SIZE all over the place, this is the same approach adopted by other architectures.. Signed-off-by: Paul Mundt --- include/asm-sh/page.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'include') diff --git a/include/asm-sh/page.h b/include/asm-sh/page.h index 888d6fe0030e..acf6977b4042 100644 --- a/include/asm-sh/page.h +++ b/include/asm-sh/page.h @@ -16,7 +16,13 @@ /* PAGE_SHIFT determines the page size */ #define PAGE_SHIFT 12 + +#ifdef __ASSEMBLY__ #define PAGE_SIZE (1 << PAGE_SHIFT) +#else +#define PAGE_SIZE (1UL << PAGE_SHIFT) +#endif + #define PAGE_MASK (~(PAGE_SIZE-1)) #define PTE_MASK PAGE_MASK -- cgit v1.2.3 From 19f9a34f87c48bbd270d617d1c986d0c23866a1a Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Wed, 27 Sep 2006 18:33:49 +0900 Subject: sh: Initial vsyscall page support. This implements initial support for the vsyscall page on SH. At the moment we leave it configurable due to having nommu to support from the same code base. We hook it up for the signal trampoline return at present, with more to be added later, once uClibc catches up. Signed-off-by: Paul Mundt --- arch/sh/kernel/Makefile | 1 + arch/sh/kernel/process.c | 2 +- arch/sh/kernel/signal.c | 17 ++- arch/sh/kernel/vsyscall/Makefile | 36 +++++++ arch/sh/kernel/vsyscall/vsyscall-note.S | 25 +++++ arch/sh/kernel/vsyscall/vsyscall-sigreturn.S | 39 +++++++ arch/sh/kernel/vsyscall/vsyscall-syscall.S | 10 ++ arch/sh/kernel/vsyscall/vsyscall-trapa.S | 42 ++++++++ arch/sh/kernel/vsyscall/vsyscall.c | 150 +++++++++++++++++++++++++++ arch/sh/kernel/vsyscall/vsyscall.lds.S | 74 +++++++++++++ arch/sh/mm/Kconfig | 13 +++ arch/sh/mm/init.c | 3 + arch/sh/mm/tlb-flush.c | 18 ++-- include/asm-sh/auxvec.h | 14 +++ include/asm-sh/elf.h | 20 ++++ include/asm-sh/mmu.h | 7 +- include/asm-sh/mmu_context.h | 8 +- include/asm-sh/page.h | 5 + include/asm-sh/processor.h | 6 ++ 19 files changed, 473 insertions(+), 17 deletions(-) create mode 100644 arch/sh/kernel/vsyscall/Makefile create mode 100644 arch/sh/kernel/vsyscall/vsyscall-note.S create mode 100644 arch/sh/kernel/vsyscall/vsyscall-sigreturn.S create mode 100644 arch/sh/kernel/vsyscall/vsyscall-syscall.S create mode 100644 arch/sh/kernel/vsyscall/vsyscall-trapa.S create mode 100644 arch/sh/kernel/vsyscall/vsyscall.c create mode 100644 arch/sh/kernel/vsyscall/vsyscall.lds.S (limited to 'include') diff --git a/arch/sh/kernel/Makefile b/arch/sh/kernel/Makefile index 0e2148f63e7e..5da88a43d350 100644 --- a/arch/sh/kernel/Makefile +++ b/arch/sh/kernel/Makefile @@ -9,6 +9,7 @@ obj-y := process.o signal.o entry.o traps.o irq.o \ io.o io_generic.o sh_ksyms.o syscalls.o obj-y += cpu/ timers/ +obj-$(CONFIG_VSYSCALL) += vsyscall/ obj-$(CONFIG_SMP) += smp.o obj-$(CONFIG_CF_ENABLER) += cf-enabler.o diff --git a/arch/sh/kernel/process.c b/arch/sh/kernel/process.c index 630ec1af2483..0b1d5dd7a93b 100644 --- a/arch/sh/kernel/process.c +++ b/arch/sh/kernel/process.c @@ -355,7 +355,7 @@ struct task_struct *__switch_to(struct task_struct *prev, struct task_struct *ne else if (next->thread.ubc_pc && next->mm) { int asid = 0; #ifdef CONFIG_MMU - asid |= next->mm->context & MMU_CONTEXT_ASID_MASK; + asid |= next->mm->context.id & MMU_CONTEXT_ASID_MASK; #endif ubc_set_tracing(asid, next->thread.ubc_pc); } else { diff --git a/arch/sh/kernel/signal.c b/arch/sh/kernel/signal.c index 2f1c9545b49f..5213f5bc6ce0 100644 --- a/arch/sh/kernel/signal.c +++ b/arch/sh/kernel/signal.c @@ -8,7 +8,6 @@ * SuperH version: Copyright (C) 1999, 2000 Niibe Yutaka & Kaz Kojima * */ - #include #include #include @@ -21,6 +20,7 @@ #include #include #include +#include #include #include @@ -29,8 +29,6 @@ #include #include -#undef DEBUG - #define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP))) /* @@ -312,6 +310,11 @@ get_sigframe(struct k_sigaction *ka, unsigned long sp, size_t frame_size) return (void __user *)((sp - frame_size) & -8ul); } +/* These symbols are defined with the addresses in the vsyscall page. + See vsyscall-trapa.S. */ +extern void __user __kernel_sigreturn; +extern void __user __kernel_rt_sigreturn; + static int setup_frame(int sig, struct k_sigaction *ka, sigset_t *set, struct pt_regs *regs) { @@ -340,6 +343,10 @@ static int setup_frame(int sig, struct k_sigaction *ka, already in userspace. */ if (ka->sa.sa_flags & SA_RESTORER) { regs->pr = (unsigned long) ka->sa.sa_restorer; +#ifdef CONFIG_VSYSCALL + } else if (likely(current->mm->context.vdso)) { + regs->pr = VDSO_SYM(&__kernel_sigreturn); +#endif } else { /* Generate return code (system call to sigreturn) */ err |= __put_user(MOVW(7), &frame->retcode[0]); @@ -416,6 +423,10 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info, already in userspace. */ if (ka->sa.sa_flags & SA_RESTORER) { regs->pr = (unsigned long) ka->sa.sa_restorer; +#ifdef CONFIG_VSYSCALL + } else if (likely(current->mm->context.vdso)) { + regs->pr = VDSO_SYM(&__kernel_rt_sigreturn); +#endif } else { /* Generate return code (system call to rt_sigreturn) */ err |= __put_user(MOVW(7), &frame->retcode[0]); diff --git a/arch/sh/kernel/vsyscall/Makefile b/arch/sh/kernel/vsyscall/Makefile new file mode 100644 index 000000000000..4bbce1cfa359 --- /dev/null +++ b/arch/sh/kernel/vsyscall/Makefile @@ -0,0 +1,36 @@ +obj-y += vsyscall.o vsyscall-syscall.o + +$(obj)/vsyscall-syscall.o: \ + $(foreach F,trapa,$(obj)/vsyscall-$F.so) + +# Teach kbuild about targets +targets += $(foreach F,trapa,vsyscall-$F.o vsyscall-$F.so) +targets += vsyscall-note.o vsyscall.lds + +# The DSO images are built using a special linker script +quiet_cmd_syscall = SYSCALL $@ + cmd_syscall = $(CC) -nostdlib $(SYSCFLAGS_$(@F)) \ + -Wl,-T,$(filter-out FORCE,$^) -o $@ + +export CPPFLAGS_vsyscall.lds += -P -C -Ush + +vsyscall-flags = -shared -s -Wl,-soname=linux-gate.so.1 \ + $(call ld-option, -Wl$(comma)--hash-style=sysv) + +SYSCFLAGS_vsyscall-trapa.so = $(vsyscall-flags) + +$(obj)/vsyscall-trapa.so: \ +$(obj)/vsyscall-%.so: $(src)/vsyscall.lds $(obj)/vsyscall-%.o FORCE + $(call if_changed,syscall) + +# We also create a special relocatable object that should mirror the symbol +# table and layout of the linked DSO. With ld -R we can then refer to +# these symbols in the kernel code rather than hand-coded addresses. +extra-y += vsyscall-syms.o +$(obj)/built-in.o: $(obj)/vsyscall-syms.o +$(obj)/built-in.o: ld_flags += -R $(obj)/vsyscall-syms.o + +SYSCFLAGS_vsyscall-syms.o = -r +$(obj)/vsyscall-syms.o: $(src)/vsyscall.lds \ + $(obj)/vsyscall-trapa.o $(obj)/vsyscall-note.o FORCE + $(call if_changed,syscall) diff --git a/arch/sh/kernel/vsyscall/vsyscall-note.S b/arch/sh/kernel/vsyscall/vsyscall-note.S new file mode 100644 index 000000000000..d4b5be4f3d5f --- /dev/null +++ b/arch/sh/kernel/vsyscall/vsyscall-note.S @@ -0,0 +1,25 @@ +/* + * This supplies .note.* sections to go into the PT_NOTE inside the vDSO text. + * Here we can supply some information useful to userland. + */ + +#include +#include + +#define ASM_ELF_NOTE_BEGIN(name, flags, vendor, type) \ + .section name, flags; \ + .balign 4; \ + .long 1f - 0f; /* name length */ \ + .long 3f - 2f; /* data length */ \ + .long type; /* note type */ \ +0: .asciz vendor; /* vendor name */ \ +1: .balign 4; \ +2: + +#define ASM_ELF_NOTE_END \ +3: .balign 4; /* pad out section */ \ + .previous + + ASM_ELF_NOTE_BEGIN(".note.kernel-version", "a", UTS_SYSNAME, 0) + .long LINUX_VERSION_CODE + ASM_ELF_NOTE_END diff --git a/arch/sh/kernel/vsyscall/vsyscall-sigreturn.S b/arch/sh/kernel/vsyscall/vsyscall-sigreturn.S new file mode 100644 index 000000000000..555a64f124ca --- /dev/null +++ b/arch/sh/kernel/vsyscall/vsyscall-sigreturn.S @@ -0,0 +1,39 @@ +#include + + .text + .balign 32 + .globl __kernel_sigreturn + .type __kernel_sigreturn,@function +__kernel_sigreturn: +.LSTART_sigreturn: + mov.w 1f, r3 + trapa #0x10 + or r0, r0 + or r0, r0 + or r0, r0 + or r0, r0 + or r0, r0 + +1: .short __NR_sigreturn +.LEND_sigreturn: + .size __kernel_sigreturn,.-.LSTART_sigreturn + + .balign 32 + .globl __kernel_rt_sigreturn + .type __kernel_rt_sigreturn,@function +__kernel_rt_sigreturn: +.LSTART_rt_sigreturn: + mov.w 1f, r3 + trapa #0x10 + or r0, r0 + or r0, r0 + or r0, r0 + or r0, r0 + or r0, r0 + +1: .short __NR_rt_sigreturn +.LEND_rt_sigreturn: + .size __kernel_rt_sigreturn,.-.LSTART_rt_sigreturn + + .section .eh_frame,"a",@progbits + .previous diff --git a/arch/sh/kernel/vsyscall/vsyscall-syscall.S b/arch/sh/kernel/vsyscall/vsyscall-syscall.S new file mode 100644 index 000000000000..c2ac7f0282b3 --- /dev/null +++ b/arch/sh/kernel/vsyscall/vsyscall-syscall.S @@ -0,0 +1,10 @@ +#include + +__INITDATA + + .globl vsyscall_trapa_start, vsyscall_trapa_end +vsyscall_trapa_start: + .incbin "arch/sh/kernel/vsyscall/vsyscall-trapa.so" +vsyscall_trapa_end: + +__FINIT diff --git a/arch/sh/kernel/vsyscall/vsyscall-trapa.S b/arch/sh/kernel/vsyscall/vsyscall-trapa.S new file mode 100644 index 000000000000..3b6eb34c43fa --- /dev/null +++ b/arch/sh/kernel/vsyscall/vsyscall-trapa.S @@ -0,0 +1,42 @@ + .text + .globl __kernel_vsyscall + .type __kernel_vsyscall,@function +__kernel_vsyscall: +.LSTART_vsyscall: + /* XXX: We'll have to do something here once we opt to use the vDSO + * page for something other than the signal trampoline.. as well as + * fill out .eh_frame -- PFM. */ +.LEND_vsyscall: + .size __kernel_vsyscall,.-.LSTART_vsyscall + .previous + + .section .eh_frame,"a",@progbits +.LCIE: + .ualong .LCIE_end - .LCIE_start +.LCIE_start: + .ualong 0 /* CIE ID */ + .byte 0x1 /* Version number */ + .string "zRS" /* NUL-terminated augmentation string */ + .uleb128 0x1 /* Code alignment factor */ + .sleb128 -4 /* Data alignment factor */ + .byte 0x11 /* Return address register column */ + /* Augmentation length and data (none) */ + .byte 0xc /* DW_CFA_def_cfa */ + .uleb128 0xf /* r15 */ + .uleb128 0x0 /* offset 0 */ + + .align 2 +.LCIE_end: + + .ualong .LFDE_end-.LFDE_start /* Length FDE */ +.LFDE_start: + .ualong .LCIE /* CIE pointer */ + .ualong .LSTART_vsyscall-. /* start address */ + .ualong .LEND_vsyscall-.LSTART_vsyscall + .uleb128 0 + .align 2 +.LFDE_end: + .previous + +/* Get the common code for the sigreturn entry points */ +#include "vsyscall-sigreturn.S" diff --git a/arch/sh/kernel/vsyscall/vsyscall.c b/arch/sh/kernel/vsyscall/vsyscall.c new file mode 100644 index 000000000000..075d6cc1a2d7 --- /dev/null +++ b/arch/sh/kernel/vsyscall/vsyscall.c @@ -0,0 +1,150 @@ +/* + * arch/sh/kernel/vsyscall.c + * + * Copyright (C) 2006 Paul Mundt + * + * vDSO randomization + * Copyright(C) 2005-2006, Red Hat, Inc., Ingo Molnar + * + * 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 + +/* + * Should the kernel map a VDSO page into processes and pass its + * address down to glibc upon exec()? + */ +unsigned int __read_mostly vdso_enabled = 1; +EXPORT_SYMBOL_GPL(vdso_enabled); + +static int __init vdso_setup(char *s) +{ + vdso_enabled = simple_strtoul(s, NULL, 0); + return 1; +} +__setup("vdso=", vdso_setup); + +/* + * These symbols are defined by vsyscall.o to mark the bounds + * of the ELF DSO images included therein. + */ +extern const char vsyscall_trapa_start, vsyscall_trapa_end; +static void *syscall_page; + +int __init vsyscall_init(void) +{ + syscall_page = (void *)get_zeroed_page(GFP_ATOMIC); + + /* + * XXX: Map this page to a fixmap entry if we get around + * to adding the page to ELF core dumps + */ + + memcpy(syscall_page, + &vsyscall_trapa_start, + &vsyscall_trapa_end - &vsyscall_trapa_start); + + return 0; +} + +static struct page *syscall_vma_nopage(struct vm_area_struct *vma, + unsigned long address, int *type) +{ + unsigned long offset = address - vma->vm_start; + struct page *page; + + if (address < vma->vm_start || address > vma->vm_end) + return NOPAGE_SIGBUS; + + page = virt_to_page(syscall_page + offset); + + get_page(page); + + return page; +} + +/* Prevent VMA merging */ +static void syscall_vma_close(struct vm_area_struct *vma) +{ +} + +static struct vm_operations_struct syscall_vm_ops = { + .nopage = syscall_vma_nopage, + .close = syscall_vma_close, +}; + +/* Setup a VMA at program startup for the vsyscall page */ +int arch_setup_additional_pages(struct linux_binprm *bprm, + int executable_stack) +{ + struct vm_area_struct *vma; + struct mm_struct *mm = current->mm; + unsigned long addr; + int ret; + + down_write(&mm->mmap_sem); + addr = get_unmapped_area(NULL, 0, PAGE_SIZE, 0, 0); + if (IS_ERR_VALUE(addr)) { + ret = addr; + goto up_fail; + } + + vma = kmem_cache_zalloc(vm_area_cachep, SLAB_KERNEL); + if (!vma) { + ret = -ENOMEM; + goto up_fail; + } + + vma->vm_start = addr; + vma->vm_end = addr + PAGE_SIZE; + /* MAYWRITE to allow gdb to COW and set breakpoints */ + vma->vm_flags = VM_READ|VM_EXEC|VM_MAYREAD|VM_MAYEXEC|VM_MAYWRITE; + vma->vm_flags |= mm->def_flags; + vma->vm_page_prot = protection_map[vma->vm_flags & 7]; + vma->vm_ops = &syscall_vm_ops; + vma->vm_mm = mm; + + ret = insert_vm_struct(mm, vma); + if (unlikely(ret)) { + kmem_cache_free(vm_area_cachep, vma); + goto up_fail; + } + + current->mm->context.vdso = (void *)addr; + + mm->total_vm++; +up_fail: + up_write(&mm->mmap_sem); + return ret; +} + +const char *arch_vma_name(struct vm_area_struct *vma) +{ + if (vma->vm_mm && vma->vm_start == (long)vma->vm_mm->context.vdso) + return "[vdso]"; + + return NULL; +} + +struct vm_area_struct *get_gate_vma(struct task_struct *task) +{ + return NULL; +} + +int in_gate_area(struct task_struct *task, unsigned long address) +{ + return 0; +} + +int in_gate_area_no_task(unsigned long address) +{ + return 0; +} diff --git a/arch/sh/kernel/vsyscall/vsyscall.lds.S b/arch/sh/kernel/vsyscall/vsyscall.lds.S new file mode 100644 index 000000000000..b13c3d439fee --- /dev/null +++ b/arch/sh/kernel/vsyscall/vsyscall.lds.S @@ -0,0 +1,74 @@ +/* + * Linker script for vsyscall DSO. The vsyscall page is an ELF shared + * object prelinked to its virtual address, and with only one read-only + * segment (that fits in one page). This script controls its layout. + */ +#include + +#ifdef CONFIG_CPU_LITTLE_ENDIAN +OUTPUT_FORMAT("elf32-sh-linux", "elf32-sh-linux", "elf32-sh-linux") +#else +OUTPUT_FORMAT("elf32-shbig-linux", "elf32-shbig-linux", "elf32-shbig-linux") +#endif +OUTPUT_ARCH(sh) + +/* The ELF entry point can be used to set the AT_SYSINFO value. */ +ENTRY(__kernel_vsyscall); + +SECTIONS +{ + . = SIZEOF_HEADERS; + + .hash : { *(.hash) } :text + .gnu.hash : { *(.gnu.hash) } + .dynsym : { *(.dynsym) } + .dynstr : { *(.dynstr) } + .gnu.version : { *(.gnu.version) } + .gnu.version_d : { *(.gnu.version_d) } + .gnu.version_r : { *(.gnu.version_r) } + + /* This linker script is used both with -r and with -shared. + For the layouts to match, we need to skip more than enough + space for the dynamic symbol table et al. If this amount + is insufficient, ld -shared will barf. Just increase it here. */ + . = 0x400; + + .text : { *(.text) } :text =0x90909090 + .note : { *(.note.*) } :text :note + .eh_frame_hdr : { *(.eh_frame_hdr) } :text :eh_frame_hdr + .eh_frame : { KEEP (*(.eh_frame)) } :text + .dynamic : { *(.dynamic) } :text :dynamic + .useless : { + *(.got.plt) *(.got) + *(.data .data.* .gnu.linkonce.d.*) + *(.dynbss) + *(.bss .bss.* .gnu.linkonce.b.*) + } :text +} + +/* + * We must supply the ELF program headers explicitly to get just one + * PT_LOAD segment, and set the flags explicitly to make segments read-only. + */ +PHDRS +{ + text PT_LOAD FILEHDR PHDRS FLAGS(5); /* PF_R|PF_X */ + dynamic PT_DYNAMIC FLAGS(4); /* PF_R */ + note PT_NOTE FLAGS(4); /* PF_R */ + eh_frame_hdr 0x6474e550; /* PT_GNU_EH_FRAME, but ld doesn't match the name */ +} + +/* + * This controls what symbols we export from the DSO. + */ +VERSION +{ + LINUX_2.6 { + global: + __kernel_vsyscall; + __kernel_sigreturn; + __kernel_rt_sigreturn; + + local: *; + }; +} diff --git a/arch/sh/mm/Kconfig b/arch/sh/mm/Kconfig index b445d02075e8..9dd606464d23 100644 --- a/arch/sh/mm/Kconfig +++ b/arch/sh/mm/Kconfig @@ -223,6 +223,19 @@ config 32BIT 32-bits through the SH-4A PMB. If this is not set, legacy 29-bit physical addressing will be used. +config VSYSCALL + bool "Support vsyscall page" + depends on MMU + default y + help + This will enable support for the kernel mapping a vDSO page + in process space, and subsequently handing down the entry point + to the libc through the ELF auxiliary vector. + + From the kernel side this is used for the signal trampoline. + For systems with an MMU that can afford to give up a page, + (the default value) say Y. + choice prompt "HugeTLB page size" depends on HUGETLB_PAGE && CPU_SH4 && MMU diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c index ad182b31d846..7154d1ce9785 100644 --- a/arch/sh/mm/init.c +++ b/arch/sh/mm/init.c @@ -286,6 +286,9 @@ void __init mem_init(void) initsize >> 10); p3_cache_init(); + + /* Initialize the vDSO */ + vsyscall_init(); } void free_initmem(void) diff --git a/arch/sh/mm/tlb-flush.c b/arch/sh/mm/tlb-flush.c index fd7e42bcaa40..73ec7f6084fa 100644 --- a/arch/sh/mm/tlb-flush.c +++ b/arch/sh/mm/tlb-flush.c @@ -14,12 +14,12 @@ void flush_tlb_page(struct vm_area_struct *vma, unsigned long page) { - if (vma->vm_mm && vma->vm_mm->context != NO_CONTEXT) { + if (vma->vm_mm && vma->vm_mm->context.id != NO_CONTEXT) { unsigned long flags; unsigned long asid; unsigned long saved_asid = MMU_NO_ASID; - asid = vma->vm_mm->context & MMU_CONTEXT_ASID_MASK; + asid = vma->vm_mm->context.id & MMU_CONTEXT_ASID_MASK; page &= PAGE_MASK; local_irq_save(flags); @@ -39,20 +39,21 @@ void flush_tlb_range(struct vm_area_struct *vma, unsigned long start, { struct mm_struct *mm = vma->vm_mm; - if (mm->context != NO_CONTEXT) { + if (mm->context.id != NO_CONTEXT) { unsigned long flags; int size; local_irq_save(flags); size = (end - start + (PAGE_SIZE - 1)) >> PAGE_SHIFT; if (size > (MMU_NTLB_ENTRIES/4)) { /* Too many TLB to flush */ - mm->context = NO_CONTEXT; + mm->context.id = NO_CONTEXT; if (mm == current->mm) activate_context(mm); } else { - unsigned long asid = mm->context&MMU_CONTEXT_ASID_MASK; + unsigned long asid; unsigned long saved_asid = MMU_NO_ASID; + asid = mm->context.id & MMU_CONTEXT_ASID_MASK; start &= PAGE_MASK; end += (PAGE_SIZE - 1); end &= PAGE_MASK; @@ -81,9 +82,10 @@ void flush_tlb_kernel_range(unsigned long start, unsigned long end) if (size > (MMU_NTLB_ENTRIES/4)) { /* Too many TLB to flush */ flush_tlb_all(); } else { - unsigned long asid = init_mm.context&MMU_CONTEXT_ASID_MASK; + unsigned long asid; unsigned long saved_asid = get_asid(); + asid = init_mm.context.id & MMU_CONTEXT_ASID_MASK; start &= PAGE_MASK; end += (PAGE_SIZE - 1); end &= PAGE_MASK; @@ -101,11 +103,11 @@ void flush_tlb_mm(struct mm_struct *mm) { /* Invalidate all TLB of this process. */ /* Instead of invalidating each TLB, we get new MMU context. */ - if (mm->context != NO_CONTEXT) { + if (mm->context.id != NO_CONTEXT) { unsigned long flags; local_irq_save(flags); - mm->context = NO_CONTEXT; + mm->context.id = NO_CONTEXT; if (mm == current->mm) activate_context(mm); local_irq_restore(flags); diff --git a/include/asm-sh/auxvec.h b/include/asm-sh/auxvec.h index fc21e4db5881..1b6916e63e90 100644 --- a/include/asm-sh/auxvec.h +++ b/include/asm-sh/auxvec.h @@ -1,4 +1,18 @@ #ifndef __ASM_SH_AUXVEC_H #define __ASM_SH_AUXVEC_H +/* + * Architecture-neutral AT_ values in 0-17, leave some room + * for more of them. + */ + +#ifdef CONFIG_VSYSCALL +/* + * Only define this in the vsyscall case, the entry point to + * the vsyscall page gets placed here. The kernel will attempt + * to build a gate VMA we don't care about otherwise.. + */ +#define AT_SYSINFO_EHDR 33 +#endif + #endif /* __ASM_SH_AUXVEC_H */ diff --git a/include/asm-sh/elf.h b/include/asm-sh/elf.h index cc8e5e767345..3a07ab40ac4d 100644 --- a/include/asm-sh/elf.h +++ b/include/asm-sh/elf.h @@ -121,4 +121,24 @@ extern int dump_task_fpu (struct task_struct *, elf_fpregset_t *); #define ELF_CORE_COPY_FPREGS(tsk, elf_fpregs) dump_task_fpu(tsk, elf_fpregs) #endif +#ifdef CONFIG_VSYSCALL +/* vDSO has arch_setup_additional_pages */ +#define ARCH_HAS_SETUP_ADDITIONAL_PAGES +struct linux_binprm; +extern int arch_setup_additional_pages(struct linux_binprm *bprm, + int executable_stack); + +extern unsigned int vdso_enabled; +extern void __kernel_vsyscall; + +#define VDSO_BASE ((unsigned long)current->mm->context.vdso) +#define VDSO_SYM(x) (VDSO_BASE + (unsigned long)(x)) + +#define ARCH_DLINFO \ +do { \ + if (vdso_enabled) \ + NEW_AUX_ENT(AT_SYSINFO_EHDR, VDSO_BASE); \ +} while (0) +#endif /* CONFIG_VSYSCALL */ + #endif /* __ASM_SH_ELF_H */ diff --git a/include/asm-sh/mmu.h b/include/asm-sh/mmu.h index 6383dc84501e..cf47df79bb94 100644 --- a/include/asm-sh/mmu.h +++ b/include/asm-sh/mmu.h @@ -11,7 +11,12 @@ typedef struct { #else /* Default "unsigned long" context */ -typedef unsigned long mm_context_t; +typedef unsigned long mm_context_id_t; + +typedef struct { + mm_context_id_t id; + void *vdso; +} mm_context_t; #endif /* CONFIG_MMU */ diff --git a/include/asm-sh/mmu_context.h b/include/asm-sh/mmu_context.h index 87678ba8d6b6..c7088efe579a 100644 --- a/include/asm-sh/mmu_context.h +++ b/include/asm-sh/mmu_context.h @@ -49,7 +49,7 @@ get_mmu_context(struct mm_struct *mm) unsigned long mc = mmu_context_cache; /* Check if we have old version of context. */ - if (((mm->context ^ mc) & MMU_CONTEXT_VERSION_MASK) == 0) + if (((mm->context.id ^ mc) & MMU_CONTEXT_VERSION_MASK) == 0) /* It's up to date, do nothing */ return; @@ -68,7 +68,7 @@ get_mmu_context(struct mm_struct *mm) if (!mc) mmu_context_cache = mc = MMU_CONTEXT_FIRST_VERSION; } - mm->context = mc; + mm->context.id = mc; } /* @@ -78,7 +78,7 @@ get_mmu_context(struct mm_struct *mm) static __inline__ int init_new_context(struct task_struct *tsk, struct mm_struct *mm) { - mm->context = NO_CONTEXT; + mm->context.id = NO_CONTEXT; return 0; } @@ -123,7 +123,7 @@ static __inline__ unsigned long get_asid(void) static __inline__ void activate_context(struct mm_struct *mm) { get_mmu_context(mm); - set_asid(mm->context & MMU_CONTEXT_ASID_MASK); + set_asid(mm->context.id & MMU_CONTEXT_ASID_MASK); } /* MMU_TTB can be used for optimizing the fault handling. diff --git a/include/asm-sh/page.h b/include/asm-sh/page.h index acf6977b4042..3d8dae31a6f6 100644 --- a/include/asm-sh/page.h +++ b/include/asm-sh/page.h @@ -117,5 +117,10 @@ typedef struct { unsigned long pgprot; } pgprot_t; #include #include +/* vDSO support */ +#ifdef CONFIG_VSYSCALL +#define __HAVE_ARCH_GATE_AREA +#endif + #endif /* __KERNEL__ */ #endif /* __ASM_SH_PAGE_H */ diff --git a/include/asm-sh/processor.h b/include/asm-sh/processor.h index b7cba4e91a72..474773853cd1 100644 --- a/include/asm-sh/processor.h +++ b/include/asm-sh/processor.h @@ -276,5 +276,11 @@ static inline void prefetch(void *x) #define prefetchw(x) prefetch(x) #endif +#ifdef CONFIG_VSYSCALL +extern int vsyscall_init(void); +#else +#define vsyscall_init() do { } while (0) +#endif + #endif /* __KERNEL__ */ #endif /* __ASM_SH_PROCESSOR_H */ -- cgit v1.2.3 From 87b0ef91b6f27c07bf7dcce8584437481f473092 Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Wed, 27 Sep 2006 18:34:41 +0900 Subject: sh: dma-mapping compile fixes. Silly bug, make it build again.. Signed-off-by: Paul Mundt --- include/asm-sh/dma-mapping.h | 42 +++++++++++++++++++++++++----------------- 1 file changed, 25 insertions(+), 17 deletions(-) (limited to 'include') diff --git a/include/asm-sh/dma-mapping.h b/include/asm-sh/dma-mapping.h index 124968f9866e..56cd4b977232 100644 --- a/include/asm-sh/dma-mapping.h +++ b/include/asm-sh/dma-mapping.h @@ -141,25 +141,35 @@ static inline void dma_sync_sg(struct device *dev, struct scatterlist *sg, } } -static void dma_sync_single_for_cpu(struct device *dev, - dma_addr_t dma_handle, size_t size, - enum dma_data_direction dir) - __attribute__ ((alias("dma_sync_single"))); +static inline void dma_sync_single_for_cpu(struct device *dev, + dma_addr_t dma_handle, size_t size, + enum dma_data_direction dir) +{ + dma_sync_single(dev, dma_handle, size, dir); +} + +static inline void dma_sync_single_for_device(struct device *dev, + dma_addr_t dma_handle, + size_t size, + enum dma_data_direction dir) +{ + dma_sync_single(dev, dma_handle, size, dir); +} -static void dma_sync_single_for_device(struct device *dev, - dma_addr_t dma_handle, size_t size, +static inline void dma_sync_sg_for_cpu(struct device *dev, + struct scatterlist *sg, int nelems, enum dma_data_direction dir) - __attribute__ ((alias("dma_sync_single"))); +{ + dma_sync_sg(dev, sg, nelems, dir); +} -static void dma_sync_sg_for_cpu(struct device *dev, - struct scatterlist *sg, int nelems, - enum dma_data_direction dir) - __attribute__ ((alias("dma_sync_sg"))); +static inline void dma_sync_sg_for_device(struct device *dev, + struct scatterlist *sg, int nelems, + enum dma_data_direction dir) +{ + dma_sync_sg(dev, sg, nelems, dir); +} -static void dma_sync_sg_for_device(struct device *dev, - struct scatterlist *sg, int nelems, - enum dma_data_direction dir) - __attribute__ ((alias("dma_sync_sg"))); static inline int dma_get_cache_alignment(void) { @@ -174,6 +184,4 @@ static inline int dma_mapping_error(dma_addr_t dma_addr) { return dma_addr == 0; } - #endif /* __ASM_SH_DMA_MAPPING_H */ - -- cgit v1.2.3 From f3c2575818fab45f8609e4aef2e43ab02b3a142e Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Wed, 27 Sep 2006 18:36:17 +0900 Subject: sh: Calculate shm alignment at runtime. Set the SHM alignment at runtime, based off of probed cache desc. Optimize get_unmapped_area() to only colour align shared mappings. Signed-off-by: Paul Mundt --- arch/sh/kernel/cpu/init.c | 5 ++++ arch/sh/kernel/sys_sh.c | 54 +++++++++++++++++++++++-------------- include/asm-sh/cacheflush.h | 2 ++ include/asm-sh/cpu-sh3/cacheflush.h | 8 ------ include/asm-sh/cpu-sh4/cacheflush.h | 3 --- include/asm-sh/page.h | 2 ++ include/asm-sh/pgtable.h | 2 -- 7 files changed, 43 insertions(+), 33 deletions(-) (limited to 'include') diff --git a/arch/sh/kernel/cpu/init.c b/arch/sh/kernel/cpu/init.c index 731dd61419dd..bfb90eb0b7a6 100644 --- a/arch/sh/kernel/cpu/init.c +++ b/arch/sh/kernel/cpu/init.c @@ -14,6 +14,7 @@ #include #include #include +#include #include #include #include @@ -198,6 +199,10 @@ asmlinkage void __init sh_cpu_init(void) /* Init the cache */ cache_init(); + shm_align_mask = max_t(unsigned long, + cpu_data->dcache.way_size - 1, + PAGE_SIZE - 1); + /* Disable the FPU */ if (fpu_disabled) { printk("FPU Disabled\n"); diff --git a/arch/sh/kernel/sys_sh.c b/arch/sh/kernel/sys_sh.c index 0ee7bf4cb238..b68ff705f067 100644 --- a/arch/sh/kernel/sys_sh.c +++ b/arch/sh/kernel/sys_sh.c @@ -21,6 +21,7 @@ #include #include #include +#include #include #include #include @@ -44,11 +45,16 @@ asmlinkage int sys_pipe(unsigned long r4, unsigned long r5, return error; } -#if defined(HAVE_ARCH_UNMAPPED_AREA) && defined(CONFIG_MMU) +unsigned long shm_align_mask = PAGE_SIZE - 1; /* Sane caches */ + +EXPORT_SYMBOL(shm_align_mask); + /* - * To avoid cache alias, we map the shard page with same color. + * To avoid cache aliases, we map the shared page with same color. */ -#define COLOUR_ALIGN(addr) (((addr)+SHMLBA-1)&~(SHMLBA-1)) +#define COLOUR_ALIGN(addr, pgoff) \ + ((((addr) + shm_align_mask) & ~shm_align_mask) + \ + (((pgoff) << PAGE_SHIFT) & shm_align_mask)) unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsigned long len, unsigned long pgoff, unsigned long flags) @@ -56,43 +62,52 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, struct mm_struct *mm = current->mm; struct vm_area_struct *vma; unsigned long start_addr; + int do_colour_align; if (flags & MAP_FIXED) { /* We do not accept a shared mapping if it would violate * cache aliasing constraints. */ - if ((flags & MAP_SHARED) && (addr & (SHMLBA - 1))) + if ((flags & MAP_SHARED) && (addr & shm_align_mask)) return -EINVAL; return addr; } - if (len > TASK_SIZE) + if (unlikely(len > TASK_SIZE)) return -ENOMEM; + do_colour_align = 0; + if (filp || (flags & MAP_SHARED)) + do_colour_align = 1; + if (addr) { - if (flags & MAP_PRIVATE) - addr = PAGE_ALIGN(addr); + if (do_colour_align) + addr = COLOUR_ALIGN(addr, pgoff); else - addr = COLOUR_ALIGN(addr); + addr = PAGE_ALIGN(addr); + vma = find_vma(mm, addr); if (TASK_SIZE - len >= addr && (!vma || addr + len <= vma->vm_start)) return addr; } - if (len <= mm->cached_hole_size) { + + if (len > mm->cached_hole_size) { + start_addr = addr = mm->free_area_cache; + } else { mm->cached_hole_size = 0; - mm->free_area_cache = TASK_UNMAPPED_BASE; + start_addr = addr = TASK_UNMAPPED_BASE; } - if (flags & MAP_PRIVATE) - addr = PAGE_ALIGN(mm->free_area_cache); - else - addr = COLOUR_ALIGN(mm->free_area_cache); - start_addr = addr; full_search: + if (do_colour_align) + addr = COLOUR_ALIGN(addr, pgoff); + else + addr = PAGE_ALIGN(mm->free_area_cache); + for (vma = find_vma(mm, addr); ; vma = vma->vm_next) { /* At this point: (!vma || addr < vma->vm_end). */ - if (TASK_SIZE - len < addr) { + if (unlikely(TASK_SIZE - len < addr)) { /* * Start a new search - just in case we missed * some holes. @@ -104,7 +119,7 @@ full_search: } return -ENOMEM; } - if (!vma || addr + len <= vma->vm_start) { + if (likely(!vma || addr + len <= vma->vm_start)) { /* * Remember the place where we stopped the search: */ @@ -115,11 +130,10 @@ full_search: mm->cached_hole_size = vma->vm_start - addr; addr = vma->vm_end; - if (!(flags & MAP_PRIVATE)) - addr = COLOUR_ALIGN(addr); + if (do_colour_align) + addr = COLOUR_ALIGN(addr, pgoff); } } -#endif static inline long do_mmap2(unsigned long addr, unsigned long len, unsigned long prot, diff --git a/include/asm-sh/cacheflush.h b/include/asm-sh/cacheflush.h index 92930b4a40d4..07f62ec9ff0c 100644 --- a/include/asm-sh/cacheflush.h +++ b/include/asm-sh/cacheflush.h @@ -28,5 +28,7 @@ extern void __flush_invalidate_region(void *start, int size); memcpy(dst, src, len); \ } while (0) +#define HAVE_ARCH_UNMAPPED_AREA + #endif /* __KERNEL__ */ #endif /* __ASM_SH_CACHEFLUSH_H */ diff --git a/include/asm-sh/cpu-sh3/cacheflush.h b/include/asm-sh/cpu-sh3/cacheflush.h index 97f5a64c2ab8..03fde97a7fd0 100644 --- a/include/asm-sh/cpu-sh3/cacheflush.h +++ b/include/asm-sh/cpu-sh3/cacheflush.h @@ -64,12 +64,4 @@ void flush_icache_page(struct vm_area_struct *vma, struct page *page); #define p3_cache_init() do { } while (0) -/* - * We provide our own get_unmapped_area to avoid cache aliasing issues - * on SH7705 with a 32KB cache, and to page align addresses in the - * non-aliasing case. - */ -#define HAVE_ARCH_UNMAPPED_AREA - #endif /* __ASM_CPU_SH3_CACHEFLUSH_H */ - diff --git a/include/asm-sh/cpu-sh4/cacheflush.h b/include/asm-sh/cpu-sh4/cacheflush.h index a95fc951aff6..515fd574267c 100644 --- a/include/asm-sh/cpu-sh4/cacheflush.h +++ b/include/asm-sh/cpu-sh4/cacheflush.h @@ -39,9 +39,6 @@ void p3_cache_init(void); #define PG_mapped PG_arch_1 -/* We provide our own get_unmapped_area to avoid cache alias issue */ -#define HAVE_ARCH_UNMAPPED_AREA - #ifdef CONFIG_MMU extern int remap_area_pages(unsigned long addr, unsigned long phys_addr, unsigned long size, unsigned long flags); diff --git a/include/asm-sh/page.h b/include/asm-sh/page.h index 3d8dae31a6f6..ca8b26d90475 100644 --- a/include/asm-sh/page.h +++ b/include/asm-sh/page.h @@ -44,6 +44,8 @@ extern void (*clear_page)(void *to); extern void (*copy_page)(void *to, void *from); +extern unsigned long shm_align_mask; + #ifdef CONFIG_MMU extern void clear_page_slow(void *to); extern void copy_page_slow(void *to, void *from); diff --git a/include/asm-sh/pgtable.h b/include/asm-sh/pgtable.h index 41c559d8ba87..2c8682ad1012 100644 --- a/include/asm-sh/pgtable.h +++ b/include/asm-sh/pgtable.h @@ -340,6 +340,4 @@ extern pte_t ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, pte_t #include #endif /* !__ASSEMBLY__ */ - #endif /* __ASM_SH_PAGE_H */ - -- cgit v1.2.3 From b4b30a5a0a270e6b3fef88373ad35d235a047fc1 Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Thu, 3 Aug 2006 17:34:24 +0100 Subject: [MIPS] Cleanup leftovers of ARCH_HAS_IRQ_PER_CPU CONFIG_IRQ_PER_CPU now controls the IRQ_PER_CPU stuff. Signed-off-by: Ralf Baechle --- arch/mips/Kconfig | 3 +-- include/asm-mips/irq.h | 4 ---- 2 files changed, 1 insertion(+), 6 deletions(-) (limited to 'include') diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index 330f6abc7703..18e15a651d51 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -1649,9 +1649,7 @@ config GENERIC_IRQ_PROBE default y config IRQ_PER_CPU - depends on SMP bool - default y # # - Highmem only makes sense for the 32-bit kernel. @@ -1719,6 +1717,7 @@ source "mm/Kconfig" config SMP bool "Multi-Processing support" depends on SYS_SUPPORTS_SMP + select IRQ_PER_CPU help This enables support for systems with more than one CPU. If you have a system with only one CPU, like most personal computers, say N. If diff --git a/include/asm-mips/irq.h b/include/asm-mips/irq.h index 896550bad322..d35c61776a02 100644 --- a/include/asm-mips/irq.h +++ b/include/asm-mips/irq.h @@ -76,8 +76,4 @@ extern int setup_irq_smtc(unsigned int irq, struct irqaction * new, unsigned long hwmask); #endif /* CONFIG_MIPS_MT_SMTC */ -#ifdef CONFIG_SMP -#define ARCH_HAS_IRQ_PER_CPU -#endif - #endif /* _ASM_IRQ_H */ -- cgit v1.2.3 From 585fa72493edd7d5acb308806e7bb609412c6228 Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Sat, 12 Aug 2006 16:40:08 +0100 Subject: [MIPS] Retire flush_icache_page from mm use. On the 34K the redundant cache operations were causing excessive stalls resulting in realtime code running on the second VPE missing its deadline. For all other platforms this patch is just a significant performance improvment as illustrated by below benchmark numbers. Processor, Processes - times in microseconds - smaller is better ------------------------------------------------------------------------------ Host OS Mhz null null open slct sig sig fork exec sh call I/O stat clos TCP inst hndl proc proc proc --------- ------------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 25Kf 2.6.18-rc4 533 0.49 1.16 7.57 33.4 30.5 1.34 12.4 5497 17.K 54.K 25Kf 2.6.18-rc4-p 533 0.49 1.16 6.68 23.0 30.7 1.36 8.55 5030 16.K 48.K 4Kc 2.6.18-rc4 80 4.21 15.0 131. 289. 261. 16.5 258. 18.K 70.K 227K 4Kc 2.6.18-rc4-p 80 4.34 13.1 128. 285. 262. 18.2 258. 12.K 52.K 176K 34Kc 2.6.18-rc4 40 5.01 14.0 61.6 90.0 477. 17.9 94.7 29.K 108K 342K 34Kc 2.6.18-rc4-p 40 4.98 13.9 61.2 89.7 475. 17.6 93.7 8758 44.K 158K BCM1480 2.6.18-rc4 700 0.28 0.60 3.68 5.92 16.0 0.78 5.08 931. 3163 15.K BCM1480 2.6.18-rc4-p 700 0.28 0.61 3.65 5.85 16.0 0.79 5.20 395. 1464 8385 TX49-16K 2.6.18-rc3 197 0.73 2.41 19.0 37.8 82.9 2.94 17.5 4438 14.K 56.K TX49-16K 2.6.18-rc3-p 197 0.73 2.40 19.9 36.3 82.9 2.94 23.4 2577 9103 38.K TX49-32K 2.6.18-rc3 396 0.36 1.19 6.80 11.8 41.0 1.46 8.17 2738 8465 32.K TX49-32K 2.6.18-rc3-p 396 0.36 1.19 6.82 10.2 41.0 1.46 8.18 1330 4638 18.K Original patch by me with enhancements by Atsushi Nemoto. Signed-off-by: Ralf Baechle Signed-off-by: Atsushi Nemoto --- arch/mips/mm/c-r3k.c | 2 +- arch/mips/mm/c-r4k.c | 2 +- arch/mips/mm/c-sb1.c | 2 +- arch/mips/mm/c-tx39.c | 4 ++-- arch/mips/mm/cache.c | 18 ++++++++++-------- include/asm-mips/cacheflush.h | 12 ++++++++---- include/asm-mips/page.h | 7 +++++-- 7 files changed, 28 insertions(+), 19 deletions(-) (limited to 'include') diff --git a/arch/mips/mm/c-r3k.c b/arch/mips/mm/c-r3k.c index bb041a22f20a..e1f35ef81145 100644 --- a/arch/mips/mm/c-r3k.c +++ b/arch/mips/mm/c-r3k.c @@ -335,7 +335,7 @@ void __init r3k_cache_init(void) flush_cache_mm = r3k_flush_cache_mm; flush_cache_range = r3k_flush_cache_range; flush_cache_page = r3k_flush_cache_page; - flush_icache_page = r3k_flush_icache_page; + __flush_icache_page = r3k_flush_icache_page; flush_icache_range = r3k_flush_icache_range; flush_cache_sigtramp = r3k_flush_cache_sigtramp; diff --git a/arch/mips/mm/c-r4k.c b/arch/mips/mm/c-r4k.c index b3ccb8738d29..4e1498246343 100644 --- a/arch/mips/mm/c-r4k.c +++ b/arch/mips/mm/c-r4k.c @@ -1291,7 +1291,7 @@ void __init r4k_cache_init(void) __flush_cache_all = r4k___flush_cache_all; flush_cache_mm = r4k_flush_cache_mm; flush_cache_page = r4k_flush_cache_page; - flush_icache_page = r4k_flush_icache_page; + __flush_icache_page = r4k_flush_icache_page; flush_cache_range = r4k_flush_cache_range; flush_cache_sigtramp = r4k_flush_cache_sigtramp; diff --git a/arch/mips/mm/c-sb1.c b/arch/mips/mm/c-sb1.c index 2d71efb82ac5..4bd9ad8a5e07 100644 --- a/arch/mips/mm/c-sb1.c +++ b/arch/mips/mm/c-sb1.c @@ -520,7 +520,7 @@ void sb1_cache_init(void) /* These routines are for Icache coherence with the Dcache */ flush_icache_range = sb1_flush_icache_range; - flush_icache_page = sb1_flush_icache_page; + __flush_icache_page = sb1_flush_icache_page; flush_icache_all = __sb1_flush_icache_all; /* local only */ /* This implies an Icache flush too, so can't be nop'ed */ diff --git a/arch/mips/mm/c-tx39.c b/arch/mips/mm/c-tx39.c index 5dfc9b1901f6..932a09d7ef84 100644 --- a/arch/mips/mm/c-tx39.c +++ b/arch/mips/mm/c-tx39.c @@ -382,7 +382,7 @@ void __init tx39_cache_init(void) flush_cache_mm = (void *) tx39h_flush_icache_all; flush_cache_range = (void *) tx39h_flush_icache_all; flush_cache_page = (void *) tx39h_flush_icache_all; - flush_icache_page = (void *) tx39h_flush_icache_all; + __flush_icache_page = (void *) tx39h_flush_icache_all; flush_icache_range = (void *) tx39h_flush_icache_all; flush_cache_sigtramp = (void *) tx39h_flush_icache_all; @@ -408,7 +408,7 @@ void __init tx39_cache_init(void) flush_cache_mm = tx39_flush_cache_mm; flush_cache_range = tx39_flush_cache_range; flush_cache_page = tx39_flush_cache_page; - flush_icache_page = tx39_flush_icache_page; + __flush_icache_page = tx39_flush_icache_page; flush_icache_range = tx39_flush_icache_range; flush_cache_sigtramp = tx39_flush_cache_sigtramp; diff --git a/arch/mips/mm/cache.c b/arch/mips/mm/cache.c index ddd3a2de1d73..40c8b0235183 100644 --- a/arch/mips/mm/cache.c +++ b/arch/mips/mm/cache.c @@ -25,7 +25,7 @@ void (*flush_cache_range)(struct vm_area_struct *vma, unsigned long start, void (*flush_cache_page)(struct vm_area_struct *vma, unsigned long page, unsigned long pfn); void (*flush_icache_range)(unsigned long start, unsigned long end); -void (*flush_icache_page)(struct vm_area_struct *vma, struct page *page); +void (*__flush_icache_page)(struct vm_area_struct *vma, struct page *page); /* MIPS specific cache operations */ void (*flush_cache_sigtramp)(unsigned long addr); @@ -70,6 +70,8 @@ void __flush_dcache_page(struct page *page) struct address_space *mapping = page_mapping(page); unsigned long addr; + if (PageHighMem(page)) + return; if (mapping && !mapping_mapped(mapping)) { SetPageDcacheDirty(page); return; @@ -91,16 +93,16 @@ void __update_cache(struct vm_area_struct *vma, unsigned long address, { struct page *page; unsigned long pfn, addr; + int exec = (vma->vm_flags & VM_EXEC) && !cpu_has_ic_fills_f_dc; pfn = pte_pfn(pte); - if (pfn_valid(pfn) && (page = pfn_to_page(pfn), page_mapping(page)) && - Page_dcache_dirty(page)) { - if (pages_do_alias((unsigned long)page_address(page), - address & PAGE_MASK)) { - addr = (unsigned long) page_address(page); + if (unlikely(!pfn_valid(pfn))) + return; + page = pfn_to_page(pfn); + if (page_mapping(page) && Page_dcache_dirty(page)) { + addr = (unsigned long) page_address(page); + if (exec || pages_do_alias(addr, address & PAGE_MASK)) flush_data_cache_page(addr); - } - ClearPageDcacheDirty(page); } } diff --git a/include/asm-mips/cacheflush.h b/include/asm-mips/cacheflush.h index 47bc8f6c20d2..36416fdfcf68 100644 --- a/include/asm-mips/cacheflush.h +++ b/include/asm-mips/cacheflush.h @@ -21,7 +21,6 @@ * - flush_cache_range(vma, start, end) flushes a range of pages * - flush_icache_range(start, end) flush a range of instructions * - flush_dcache_page(pg) flushes(wback&invalidates) a page for dcache - * - flush_icache_page(vma, pg) flushes(invalidates) a page for icache * * MIPS specific flush operations: * @@ -39,7 +38,7 @@ extern void __flush_dcache_page(struct page *page); static inline void flush_dcache_page(struct page *page) { - if (cpu_has_dc_aliases) + if (cpu_has_dc_aliases || !cpu_has_ic_fills_f_dc) __flush_dcache_page(page); } @@ -47,8 +46,13 @@ static inline void flush_dcache_page(struct page *page) #define flush_dcache_mmap_lock(mapping) do { } while (0) #define flush_dcache_mmap_unlock(mapping) do { } while (0) -extern void (*flush_icache_page)(struct vm_area_struct *vma, +extern void (*__flush_icache_page)(struct vm_area_struct *vma, struct page *page); +static inline void flush_icache_page(struct vm_area_struct *vma, + struct page *page) +{ +} + extern void (*flush_icache_range)(unsigned long start, unsigned long end); #define flush_cache_vmap(start, end) flush_cache_all() #define flush_cache_vunmap(start, end) flush_cache_all() @@ -60,7 +64,7 @@ static inline void copy_to_user_page(struct vm_area_struct *vma, if (cpu_has_dc_aliases) flush_cache_page(vma, vaddr, page_to_pfn(page)); memcpy(dst, src, len); - flush_icache_page(vma, page); + __flush_icache_page(vma, page); } static inline void copy_from_user_page(struct vm_area_struct *vma, diff --git a/include/asm-mips/page.h b/include/asm-mips/page.h index 219d359861f3..c3b872b047d7 100644 --- a/include/asm-mips/page.h +++ b/include/asm-mips/page.h @@ -34,6 +34,8 @@ #ifndef __ASSEMBLY__ +#include + extern void clear_page(void * page); extern void copy_page(void * to, void * from); @@ -53,7 +55,7 @@ static inline void clear_user_page(void *addr, unsigned long vaddr, extern void (*flush_data_cache_page)(unsigned long addr); clear_page(addr); - if (pages_do_alias((unsigned long) addr, vaddr)) + if (pages_do_alias((unsigned long) addr, vaddr & PAGE_MASK)) flush_data_cache_page((unsigned long)addr); } @@ -63,7 +65,8 @@ static inline void copy_user_page(void *vto, void *vfrom, unsigned long vaddr, extern void (*flush_data_cache_page)(unsigned long addr); copy_page(vto, vfrom); - if (pages_do_alias((unsigned long)vto, vaddr)) + if (!cpu_has_ic_fills_f_dc || + pages_do_alias((unsigned long)vto, vaddr & PAGE_MASK)) flush_data_cache_page((unsigned long)vto); } -- cgit v1.2.3 From 65316fd13ad9d82560edbad0a940d684380f7461 Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Thu, 31 Aug 2006 14:16:06 +0100 Subject: [MIPS] Replace generic__raw_read_trylock usage generic__raw_read_trylock() is a defect generic function actually doing a __raw_read_lock ... Signed-off-by: Ralf Baechle --- include/asm-mips/spinlock.h | 47 ++++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 46 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/asm-mips/spinlock.h b/include/asm-mips/spinlock.h index 669b8e349ff2..4c1a1b53aeaf 100644 --- a/include/asm-mips/spinlock.h +++ b/include/asm-mips/spinlock.h @@ -239,7 +239,51 @@ static inline void __raw_write_unlock(raw_rwlock_t *rw) : "memory"); } -#define __raw_read_trylock(lock) generic__raw_read_trylock(lock) +static inline int __raw_read_trylock(raw_rwlock_t *rw) +{ + unsigned int tmp; + int ret; + + if (R10000_LLSC_WAR) { + __asm__ __volatile__( + " .set noreorder # __raw_read_trylock \n" + " li %2, 0 \n" + "1: ll %1, %3 \n" + " bnez %1, 2f \n" + " addu %1, 1 \n" + " sc %1, %0 \n" + " beqzl %1, 1b \n" + " .set reorder \n" +#ifdef CONFIG_SMP + " sync \n" +#endif + " li %2, 1 \n" + "2: \n" + : "=m" (rw->lock), "=&r" (tmp), "=&r" (ret) + : "m" (rw->lock) + : "memory"); + } else { + __asm__ __volatile__( + " .set noreorder # __raw_read_trylock \n" + " li %2, 0 \n" + "1: ll %1, %3 \n" + " bnez %1, 2f \n" + " addu %1, 1 \n" + " sc %1, %0 \n" + " beqz %1, 1b \n" + " .set reorder \n" +#ifdef CONFIG_SMP + " sync \n" +#endif + " li %2, 1 \n" + "2: \n" + : "=m" (rw->lock), "=&r" (tmp), "=&r" (ret) + : "m" (rw->lock) + : "memory"); + } + + return ret; +} static inline int __raw_write_trylock(raw_rwlock_t *rw) { @@ -283,4 +327,5 @@ static inline int __raw_write_trylock(raw_rwlock_t *rw) return ret; } + #endif /* _ASM_SPINLOCK_H */ -- cgit v1.2.3 From d34555fb20e7abf33f86d7aa3ec0826343f38256 Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Thu, 31 Aug 2006 19:39:09 +0100 Subject: [MIPS] Do not lose upper 32-bit on MIPS32 with 64-bit addresses in __pte(). Signed-off-by: Ralf Baechle --- include/asm-mips/page.h | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/asm-mips/page.h b/include/asm-mips/page.h index c3b872b047d7..85b258ee7090 100644 --- a/include/asm-mips/page.h +++ b/include/asm-mips/page.h @@ -77,15 +77,17 @@ static inline void copy_user_page(void *vto, void *vfrom, unsigned long vaddr, #ifdef CONFIG_CPU_MIPS32 typedef struct { unsigned long pte_low, pte_high; } pte_t; #define pte_val(x) ((x).pte_low | ((unsigned long long)(x).pte_high << 32)) + #define __pte(x) ({ pte_t __pte = {(x), ((unsigned long long)(x)) >> 32}; __pte; }) #else typedef struct { unsigned long long pte; } pte_t; #define pte_val(x) ((x).pte) + #define __pte(x) ((pte_t) { (x) } ) #endif #else typedef struct { unsigned long pte; } pte_t; #define pte_val(x) ((x).pte) -#endif #define __pte(x) ((pte_t) { (x) } ) +#endif /* * For 3-level pagetables we defines these ourselves, for 2-level the -- cgit v1.2.3 From 8f9a2b324644d3f8c233287f0a7764d61655cda4 Mon Sep 17 00:00:00 2001 From: Atsushi Nemoto Date: Thu, 7 Sep 2006 01:00:22 +0900 Subject: [MIPS] Fix errors detected by "make headers_check" * export asm/sgidefs.h * include asm/isadep.h only if in kernel * do not export contents of asm/timex.h and asm/user.h Signed-off-by: Atsushi Nemoto Signed-off-by: Ralf Baechle --- include/asm-mips/Kbuild | 2 ++ include/asm-mips/ptrace.h | 3 +-- include/asm-mips/timex.h | 4 ++++ include/asm-mips/user.h | 4 ++++ 4 files changed, 11 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/asm-mips/Kbuild b/include/asm-mips/Kbuild index c68e1680da01..01ea3e045652 100644 --- a/include/asm-mips/Kbuild +++ b/include/asm-mips/Kbuild @@ -1 +1,3 @@ include include/asm-generic/Kbuild.asm + +header-y += sgidefs.h diff --git a/include/asm-mips/ptrace.h b/include/asm-mips/ptrace.h index 4113316ee0da..4fb0fc43ffd7 100644 --- a/include/asm-mips/ptrace.h +++ b/include/asm-mips/ptrace.h @@ -10,8 +10,6 @@ #define _ASM_PTRACE_H -#include - /* 0 - 31 are integer registers, 32 - 63 are fp registers. */ #define FPR_BASE 32 #define PC 64 @@ -73,6 +71,7 @@ struct pt_regs { #ifdef __KERNEL__ #include +#include /* * Does the process account for user or for system time? diff --git a/include/asm-mips/timex.h b/include/asm-mips/timex.h index 98aa737b34aa..b80de8e0fbbd 100644 --- a/include/asm-mips/timex.h +++ b/include/asm-mips/timex.h @@ -8,6 +8,8 @@ #ifndef _ASM_TIMEX_H #define _ASM_TIMEX_H +#ifdef __KERNEL__ + #include /* @@ -51,4 +53,6 @@ static inline cycles_t get_cycles (void) return read_c0_count(); } +#endif /* __KERNEL__ */ + #endif /* _ASM_TIMEX_H */ diff --git a/include/asm-mips/user.h b/include/asm-mips/user.h index 89bf8b4cab3c..61f2a093b91b 100644 --- a/include/asm-mips/user.h +++ b/include/asm-mips/user.h @@ -8,6 +8,8 @@ #ifndef _ASM_USER_H #define _ASM_USER_H +#ifdef __KERNEL__ + #include #include @@ -55,4 +57,6 @@ struct user { #define HOST_DATA_START_ADDR (u.start_data) #define HOST_STACK_END_ADDR (u.start_stack + u.u_ssize * NBPG) +#endif /* __KERNEL__ */ + #endif /* _ASM_USER_H */ -- cgit v1.2.3 From 7fdeb048141b363a23b8cf6f6a226d74aca4d724 Mon Sep 17 00:00:00 2001 From: Atsushi Nemoto Date: Wed, 6 Sep 2006 22:42:02 +0900 Subject: [MIPS] Wire up set_robust_list(2) and get_robust_list(2) Signed-off-by: Atsushi Nemoto Signed-off-by: Ralf Baechle --- arch/mips/kernel/scall32-o32.S | 2 ++ arch/mips/kernel/scall64-64.S | 2 ++ arch/mips/kernel/scall64-n32.S | 4 +++- arch/mips/kernel/scall64-o32.S | 2 ++ include/asm-mips/unistd.h | 18 ++++++++++++------ 5 files changed, 21 insertions(+), 7 deletions(-) (limited to 'include') diff --git a/arch/mips/kernel/scall32-o32.S b/arch/mips/kernel/scall32-o32.S index ba1bcd83c7d3..e71785102206 100644 --- a/arch/mips/kernel/scall32-o32.S +++ b/arch/mips/kernel/scall32-o32.S @@ -662,6 +662,8 @@ einval: li v0, -EINVAL sys sys_tee 4 sys sys_vmsplice 4 sys sys_move_pages 6 + sys sys_set_robust_list 2 + sys sys_get_robust_list 3 .endm /* We pre-compute the number of _instruction_ bytes needed to diff --git a/arch/mips/kernel/scall64-64.S b/arch/mips/kernel/scall64-64.S index 939e172db953..4c22d0b4825d 100644 --- a/arch/mips/kernel/scall64-64.S +++ b/arch/mips/kernel/scall64-64.S @@ -466,3 +466,5 @@ sys_call_table: PTR sys_tee /* 5265 */ PTR sys_vmsplice PTR sys_move_pages + PTR sys_set_robust_list + PTR sys_get_robust_list diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S index 549b4bcb53a5..f25c2a2f1038 100644 --- a/arch/mips/kernel/scall64-n32.S +++ b/arch/mips/kernel/scall64-n32.S @@ -390,5 +390,7 @@ EXPORT(sysn32_call_table) PTR sys_splice PTR sys_sync_file_range PTR sys_tee - PTR sys_vmsplice /* 6271 */ + PTR sys_vmsplice /* 6270 */ PTR sys_move_pages + PTR compat_sys_set_robust_list + PTR compat_sys_get_robust_list diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S index 505c9ee54009..2ac01412f747 100644 --- a/arch/mips/kernel/scall64-o32.S +++ b/arch/mips/kernel/scall64-o32.S @@ -514,4 +514,6 @@ sys_call_table: PTR sys_tee PTR sys_vmsplice PTR compat_sys_move_pages + PTR compat_sys_set_robust_list + PTR compat_sys_get_robust_list /* 4310 */ .size sys_call_table,.-sys_call_table diff --git a/include/asm-mips/unistd.h b/include/asm-mips/unistd.h index 610ccb8a50b3..558e3cba4f92 100644 --- a/include/asm-mips/unistd.h +++ b/include/asm-mips/unistd.h @@ -329,16 +329,18 @@ #define __NR_tee (__NR_Linux + 306) #define __NR_vmsplice (__NR_Linux + 307) #define __NR_move_pages (__NR_Linux + 308) +#define __NR_set_robust_list (__NR_Linux + 309) +#define __NR_get_robust_list (__NR_Linux + 310) /* * Offset of the last Linux o32 flavoured syscall */ -#define __NR_Linux_syscalls 308 +#define __NR_Linux_syscalls 310 #endif /* _MIPS_SIM == _MIPS_SIM_ABI32 */ #define __NR_O32_Linux 4000 -#define __NR_O32_Linux_syscalls 308 +#define __NR_O32_Linux_syscalls 310 #if _MIPS_SIM == _MIPS_SIM_ABI64 @@ -614,16 +616,18 @@ #define __NR_tee (__NR_Linux + 265) #define __NR_vmsplice (__NR_Linux + 266) #define __NR_move_pages (__NR_Linux + 267) +#define __NR_set_robust_list (__NR_Linux + 268) +#define __NR_get_robust_list (__NR_Linux + 269) /* * Offset of the last Linux 64-bit flavoured syscall */ -#define __NR_Linux_syscalls 267 +#define __NR_Linux_syscalls 269 #endif /* _MIPS_SIM == _MIPS_SIM_ABI64 */ #define __NR_64_Linux 5000 -#define __NR_64_Linux_syscalls 267 +#define __NR_64_Linux_syscalls 269 #if _MIPS_SIM == _MIPS_SIM_NABI32 @@ -903,16 +907,18 @@ #define __NR_tee (__NR_Linux + 269) #define __NR_vmsplice (__NR_Linux + 270) #define __NR_move_pages (__NR_Linux + 271) +#define __NR_set_robust_list (__NR_Linux + 272) +#define __NR_get_robust_list (__NR_Linux + 273) /* * Offset of the last N32 flavoured syscall */ -#define __NR_Linux_syscalls 271 +#define __NR_Linux_syscalls 273 #endif /* _MIPS_SIM == _MIPS_SIM_NABI32 */ #define __NR_N32_Linux 6000 -#define __NR_N32_Linux_syscalls 271 +#define __NR_N32_Linux_syscalls 273 #ifdef __KERNEL__ -- cgit v1.2.3 From 3ee24e1b1e0b5ae413a85ba63677a7110915e3af Mon Sep 17 00:00:00 2001 From: "Maciej W. Rozycki" Date: Tue, 12 Sep 2006 19:02:44 +0100 Subject: [MIPS] Atlas: Fix building the RTC driver Atlas maps its RTC chip in the host mmio space rather than using the "traditional" location in the PCI/ISA port space. A change that has happened to the generic RTC header requires to define ARCH_RTC_LOCATION now. Signed-off-by: Maciej W. Rozycki Signed-off-by: Ralf Baechle --- include/asm-mips/mach-atlas/mc146818rtc.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include') diff --git a/include/asm-mips/mach-atlas/mc146818rtc.h b/include/asm-mips/mach-atlas/mc146818rtc.h index 397522ea5565..fc09928571d6 100644 --- a/include/asm-mips/mach-atlas/mc146818rtc.h +++ b/include/asm-mips/mach-atlas/mc146818rtc.h @@ -28,6 +28,8 @@ #include #include +#define ARCH_RTC_LOCATION + #define RTC_PORT(x) (ATLAS_RTC_ADR_REG + (x) * 8) #define RTC_IO_EXTENT 0x100 #define RTC_IOMAPPED 0 -- cgit v1.2.3 From fc095a902181b72ce77a10feb7b36ba1cbacd736 Mon Sep 17 00:00:00 2001 From: "Maciej W. Rozycki" Date: Tue, 12 Sep 2006 19:12:18 +0100 Subject: [MIPS] Atlas: update interrupt handling The following change updates the Atlas interrupt handling to match that of Malta. Tested with a 5Kc and a 34Kf successfully. Signed-off-by: Maciej W. Rozycki Signed-off-by: Ralf Baechle --- arch/mips/mips-boards/atlas/atlas_int.c | 105 ++++++++++++++++++++----- arch/mips/mips-boards/atlas/atlas_setup.c | 2 +- arch/mips/mips-boards/generic/time.c | 7 +- arch/mips/pci/fixup-atlas.c | 20 ++--- include/asm-mips/mach-atlas/mc146818rtc.h | 2 +- include/asm-mips/mips-boards/atlasint.h | 124 +++++++++++++++++++++--------- 6 files changed, 189 insertions(+), 71 deletions(-) (limited to 'include') diff --git a/arch/mips/mips-boards/atlas/atlas_int.c b/arch/mips/mips-boards/atlas/atlas_int.c index fb25e0377f11..a020a3cb4f4b 100644 --- a/arch/mips/mips-boards/atlas/atlas_int.c +++ b/arch/mips/mips-boards/atlas/atlas_int.c @@ -1,6 +1,8 @@ /* - * Carsten Langgaard, carstenl@mips.com - * Copyright (C) 1999,2000 MIPS Technologies, Inc. All rights reserved. + * Copyright (C) 1999, 2000, 2006 MIPS Technologies, Inc. + * All rights reserved. + * Authors: Carsten Langgaard + * Maciej W. Rozycki * * ######################################################################## * @@ -25,17 +27,20 @@ */ #include #include +#include #include #include #include #include -#include +#include #include +#include +#include + #include #include -#include - +#include static struct atlas_ictrl_regs *atlas_hw0_icregs; @@ -47,13 +52,13 @@ static struct atlas_ictrl_regs *atlas_hw0_icregs; void disable_atlas_irq(unsigned int irq_nr) { - atlas_hw0_icregs->intrsten = (1 << (irq_nr-ATLASINT_BASE)); + atlas_hw0_icregs->intrsten = 1 << (irq_nr - ATLAS_INT_BASE); iob(); } void enable_atlas_irq(unsigned int irq_nr) { - atlas_hw0_icregs->intseten = (1 << (irq_nr-ATLASINT_BASE)); + atlas_hw0_icregs->intseten = 1 << (irq_nr - ATLAS_INT_BASE); iob(); } @@ -107,7 +112,7 @@ static inline void atlas_hw0_irqdispatch(struct pt_regs *regs) if (unlikely(int_status == 0)) return; - irq = ATLASINT_BASE + ls1bit32(int_status); + irq = ATLAS_INT_BASE + ls1bit32(int_status); DEBUG_INT("atlas_hw0_irqdispatch: irq=%d\n", irq); @@ -161,15 +166,14 @@ static inline unsigned int irq_ffs(unsigned int pending) } /* - * IRQs on the Atlas board look basically (barring software IRQs which we - * don't use at all and all external interrupt sources are combined together - * on hardware interrupt 0 (MIPS IRQ 2)) like: + * IRQs on the Atlas board look basically like (all external interrupt + * sources are combined together on hardware interrupt 0 (MIPS IRQ 2)): * - * MIPS IRQ Source + * MIPS IRQ Source * -------- ------ - * 0 Software (ignored) - * 1 Software (ignored) - * 2 Combined hardware interrupt (hw0) + * 0 Software 0 (reschedule IPI on MT) + * 1 Software 1 (remote call IPI on MT) + * 2 Combined Atlas hardware interrupt (hw0) * 3 Hardware (ignored) * 4 Hardware (ignored) * 5 Hardware (ignored) @@ -179,7 +183,7 @@ static inline unsigned int irq_ffs(unsigned int pending) * We handle the IRQ according to _our_ priority which is: * * Highest ---- R4k Timer - * Lowest ---- Combined hardware interrupt + * Lowest ---- Software 0 * * then we just return, if multiple IRQs are pending then we will just take * another exception, big deal. @@ -193,17 +197,19 @@ asmlinkage void plat_irq_dispatch(struct pt_regs *regs) if (irq == MIPSCPU_INT_ATLAS) atlas_hw0_irqdispatch(regs); - else if (irq > 0) + else if (irq >= 0) do_IRQ(MIPSCPU_INT_BASE + irq, regs); else spurious_interrupt(regs); } -void __init arch_init_irq(void) +static inline void init_atlas_irqs (int base) { int i; - atlas_hw0_icregs = (struct atlas_ictrl_regs *)ioremap (ATLAS_ICTRL_REGS_BASE, sizeof(struct atlas_ictrl_regs *)); + atlas_hw0_icregs = (struct atlas_ictrl_regs *) + ioremap(ATLAS_ICTRL_REGS_BASE, + sizeof(struct atlas_ictrl_regs *)); /* * Mask out all interrupt by writing "1" to all bit position in @@ -211,7 +217,7 @@ void __init arch_init_irq(void) */ atlas_hw0_icregs->intrsten = 0xffffffff; - for (i = ATLASINT_BASE; i <= ATLASINT_END; i++) { + for (i = ATLAS_INT_BASE; i <= ATLAS_INT_END; i++) { irq_desc[i].status = IRQ_DISABLED; irq_desc[i].action = 0; irq_desc[i].depth = 1; @@ -219,3 +225,62 @@ void __init arch_init_irq(void) spin_lock_init(&irq_desc[i].lock); } } + +static struct irqaction atlasirq = { + .handler = no_action, + .name = "Atlas cascade" +}; + +msc_irqmap_t __initdata msc_irqmap[] = { + {MSC01C_INT_TMR, MSC01_IRQ_EDGE, 0}, + {MSC01C_INT_PCI, MSC01_IRQ_LEVEL, 0}, +}; +int __initdata msc_nr_irqs = sizeof(msc_irqmap) / sizeof(*msc_irqmap); + +msc_irqmap_t __initdata msc_eicirqmap[] = { + {MSC01E_INT_SW0, MSC01_IRQ_LEVEL, 0}, + {MSC01E_INT_SW1, MSC01_IRQ_LEVEL, 0}, + {MSC01E_INT_ATLAS, MSC01_IRQ_LEVEL, 0}, + {MSC01E_INT_TMR, MSC01_IRQ_EDGE, 0}, + {MSC01E_INT_PCI, MSC01_IRQ_LEVEL, 0}, + {MSC01E_INT_PERFCTR, MSC01_IRQ_LEVEL, 0}, + {MSC01E_INT_CPUCTR, MSC01_IRQ_LEVEL, 0} +}; +int __initdata msc_nr_eicirqs = sizeof(msc_eicirqmap) / sizeof(*msc_eicirqmap); + +void __init arch_init_irq(void) +{ + init_atlas_irqs(ATLAS_INT_BASE); + + if (!cpu_has_veic) + mips_cpu_irq_init(MIPSCPU_INT_BASE); + + switch(mips_revision_corid) { + case MIPS_REVISION_CORID_CORE_MSC: + case MIPS_REVISION_CORID_CORE_FPGA2: + case MIPS_REVISION_CORID_CORE_FPGA3: + case MIPS_REVISION_CORID_CORE_24K: + case MIPS_REVISION_CORID_CORE_EMUL_MSC: + if (cpu_has_veic) + init_msc_irqs (MSC01E_INT_BASE, + msc_eicirqmap, msc_nr_eicirqs); + else + init_msc_irqs (MSC01C_INT_BASE, + msc_irqmap, msc_nr_irqs); + } + + + if (cpu_has_veic) { + set_vi_handler (MSC01E_INT_ATLAS, atlas_hw0_irqdispatch); + setup_irq (MSC01E_INT_BASE + MSC01E_INT_ATLAS, &atlasirq); + } else if (cpu_has_vint) { + set_vi_handler (MIPSCPU_INT_ATLAS, atlas_hw0_irqdispatch); +#ifdef CONFIG_MIPS_MT_SMTC + setup_irq_smtc (MIPSCPU_INT_BASE + MIPSCPU_INT_ATLAS, + &atlasirq, (0x100 << MIPSCPU_INT_ATLAS)); +#else /* Not SMTC */ + setup_irq(MIPSCPU_INT_BASE + MIPSCPU_INT_ATLAS, &atlasirq); +#endif /* CONFIG_MIPS_MT_SMTC */ + } else + setup_irq(MIPSCPU_INT_BASE + MIPSCPU_INT_ATLAS, &atlasirq); +} diff --git a/arch/mips/mips-boards/atlas/atlas_setup.c b/arch/mips/mips-boards/atlas/atlas_setup.c index 9871a91fdb07..0c6b0ce15028 100644 --- a/arch/mips/mips-boards/atlas/atlas_setup.c +++ b/arch/mips/mips-boards/atlas/atlas_setup.c @@ -77,7 +77,7 @@ static void __init serial_init(void) #else s.iobase = ATLAS_UART_REGS_BASE+3; #endif - s.irq = ATLASINT_UART; + s.irq = ATLAS_INT_UART; s.uartclk = ATLAS_BASE_BAUD * 16; s.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_AUTO_IRQ; s.iotype = UPIO_PORT; diff --git a/arch/mips/mips-boards/generic/time.c b/arch/mips/mips-boards/generic/time.c index de5798e1e015..8d15861fce61 100644 --- a/arch/mips/mips-boards/generic/time.c +++ b/arch/mips/mips-boards/generic/time.c @@ -41,8 +41,13 @@ #include #include + +#ifdef CONFIG_MIPS_ATLAS +#include +#endif +#ifdef CONFIG_MIPS_MALTA #include -#include +#endif unsigned long cpu_khz; diff --git a/arch/mips/pci/fixup-atlas.c b/arch/mips/pci/fixup-atlas.c index 439510af3037..c6cd6e9cdfbc 100644 --- a/arch/mips/pci/fixup-atlas.c +++ b/arch/mips/pci/fixup-atlas.c @@ -21,16 +21,16 @@ #include -#define PCIA ATLASINT_PCIA -#define PCIB ATLASINT_PCIB -#define PCIC ATLASINT_PCIC -#define PCID ATLASINT_PCID -#define INTA ATLASINT_INTA -#define INTB ATLASINT_INTB -#define ETH ATLASINT_ETH -#define INTC ATLASINT_INTC -#define SCSI ATLASINT_SCSI -#define INTD ATLASINT_INTD +#define PCIA ATLAS_INT_PCIA +#define PCIB ATLAS_INT_PCIB +#define PCIC ATLAS_INT_PCIC +#define PCID ATLAS_INT_PCID +#define INTA ATLAS_INT_INTA +#define INTB ATLAS_INT_INTB +#define ETH ATLAS_INT_ETH +#define INTC ATLAS_INT_INTC +#define SCSI ATLAS_INT_SCSI +#define INTD ATLAS_INT_INTD static char irq_tab[][5] __initdata = { /* INTA INTB INTC INTD */ diff --git a/include/asm-mips/mach-atlas/mc146818rtc.h b/include/asm-mips/mach-atlas/mc146818rtc.h index fc09928571d6..a73a5698420c 100644 --- a/include/asm-mips/mach-atlas/mc146818rtc.h +++ b/include/asm-mips/mach-atlas/mc146818rtc.h @@ -33,7 +33,7 @@ #define RTC_PORT(x) (ATLAS_RTC_ADR_REG + (x) * 8) #define RTC_IO_EXTENT 0x100 #define RTC_IOMAPPED 0 -#define RTC_IRQ ATLASINT_RTC +#define RTC_IRQ ATLAS_INT_RTC static inline unsigned char CMOS_READ(unsigned long addr) { diff --git a/include/asm-mips/mips-boards/atlasint.h b/include/asm-mips/mips-boards/atlasint.h index fd7ebc54fa90..b15e4ea0b091 100644 --- a/include/asm-mips/mips-boards/atlasint.h +++ b/include/asm-mips/mips-boards/atlasint.h @@ -1,6 +1,7 @@ /* - * Carsten Langgaard, carstenl@mips.com - * Copyright (C) 1999 MIPS Technologies, Inc. All rights reserved. + * Copyright (C) 1999, 2006 MIPS Technologies, Inc. All rights reserved. + * Authors: Carsten Langgaard + * Maciej W. Rozycki * * ######################################################################## * @@ -25,41 +26,88 @@ #ifndef _MIPS_ATLASINT_H #define _MIPS_ATLASINT_H -#define ATLASINT_BASE 1 -#define ATLASINT_UART (ATLASINT_BASE+0) -#define ATLASINT_TIM0 (ATLASINT_BASE+1) -#define ATLASINT_RES2 (ATLASINT_BASE+2) -#define ATLASINT_RES3 (ATLASINT_BASE+3) -#define ATLASINT_RTC (ATLASINT_BASE+4) -#define ATLASINT_COREHI (ATLASINT_BASE+5) -#define ATLASINT_CORELO (ATLASINT_BASE+6) -#define ATLASINT_RES7 (ATLASINT_BASE+7) -#define ATLASINT_PCIA (ATLASINT_BASE+8) -#define ATLASINT_PCIB (ATLASINT_BASE+9) -#define ATLASINT_PCIC (ATLASINT_BASE+10) -#define ATLASINT_PCID (ATLASINT_BASE+11) -#define ATLASINT_ENUM (ATLASINT_BASE+12) -#define ATLASINT_DEG (ATLASINT_BASE+13) -#define ATLASINT_ATXFAIL (ATLASINT_BASE+14) -#define ATLASINT_INTA (ATLASINT_BASE+15) -#define ATLASINT_INTB (ATLASINT_BASE+16) -#define ATLASINT_ETH ATLASINT_INTB -#define ATLASINT_INTC (ATLASINT_BASE+17) -#define ATLASINT_SCSI ATLASINT_INTC -#define ATLASINT_INTD (ATLASINT_BASE+18) -#define ATLASINT_SERR (ATLASINT_BASE+19) -#define ATLASINT_RES20 (ATLASINT_BASE+20) -#define ATLASINT_RES21 (ATLASINT_BASE+21) -#define ATLASINT_RES22 (ATLASINT_BASE+22) -#define ATLASINT_RES23 (ATLASINT_BASE+23) -#define ATLASINT_RES24 (ATLASINT_BASE+24) -#define ATLASINT_RES25 (ATLASINT_BASE+25) -#define ATLASINT_RES26 (ATLASINT_BASE+26) -#define ATLASINT_RES27 (ATLASINT_BASE+27) -#define ATLASINT_RES28 (ATLASINT_BASE+28) -#define ATLASINT_RES29 (ATLASINT_BASE+29) -#define ATLASINT_RES30 (ATLASINT_BASE+30) -#define ATLASINT_RES31 (ATLASINT_BASE+31) -#define ATLASINT_END (ATLASINT_BASE+31) +/* + * Interrupts 0..7 are used for Atlas CPU interrupts (nonEIC mode) + */ +#define MIPSCPU_INT_BASE 0 + +/* CPU interrupt offsets */ +#define MIPSCPU_INT_SW0 0 +#define MIPSCPU_INT_SW1 1 +#define MIPSCPU_INT_MB0 2 +#define MIPSCPU_INT_ATLAS MIPSCPU_INT_MB0 +#define MIPSCPU_INT_MB1 3 +#define MIPSCPU_INT_MB2 4 +#define MIPSCPU_INT_MB3 5 +#define MIPSCPU_INT_MB4 6 +#define MIPSCPU_INT_CPUCTR 7 + +/* + * Interrupts 8..39 are used for Atlas interrupt controller interrupts + */ +#define ATLAS_INT_BASE 8 +#define ATLAS_INT_UART (ATLAS_INT_BASE + 0) +#define ATLAS_INT_TIM0 (ATLAS_INT_BASE + 1) +#define ATLAS_INT_RES2 (ATLAS_INT_BASE + 2) +#define ATLAS_INT_RES3 (ATLAS_INT_BASE + 3) +#define ATLAS_INT_RTC (ATLAS_INT_BASE + 4) +#define ATLAS_INT_COREHI (ATLAS_INT_BASE + 5) +#define ATLAS_INT_CORELO (ATLAS_INT_BASE + 6) +#define ATLAS_INT_RES7 (ATLAS_INT_BASE + 7) +#define ATLAS_INT_PCIA (ATLAS_INT_BASE + 8) +#define ATLAS_INT_PCIB (ATLAS_INT_BASE + 9) +#define ATLAS_INT_PCIC (ATLAS_INT_BASE + 10) +#define ATLAS_INT_PCID (ATLAS_INT_BASE + 11) +#define ATLAS_INT_ENUM (ATLAS_INT_BASE + 12) +#define ATLAS_INT_DEG (ATLAS_INT_BASE + 13) +#define ATLAS_INT_ATXFAIL (ATLAS_INT_BASE + 14) +#define ATLAS_INT_INTA (ATLAS_INT_BASE + 15) +#define ATLAS_INT_INTB (ATLAS_INT_BASE + 16) +#define ATLAS_INT_ETH ATLAS_INT_INTB +#define ATLAS_INT_INTC (ATLAS_INT_BASE + 17) +#define ATLAS_INT_SCSI ATLAS_INT_INTC +#define ATLAS_INT_INTD (ATLAS_INT_BASE + 18) +#define ATLAS_INT_SERR (ATLAS_INT_BASE + 19) +#define ATLAS_INT_RES20 (ATLAS_INT_BASE + 20) +#define ATLAS_INT_RES21 (ATLAS_INT_BASE + 21) +#define ATLAS_INT_RES22 (ATLAS_INT_BASE + 22) +#define ATLAS_INT_RES23 (ATLAS_INT_BASE + 23) +#define ATLAS_INT_RES24 (ATLAS_INT_BASE + 24) +#define ATLAS_INT_RES25 (ATLAS_INT_BASE + 25) +#define ATLAS_INT_RES26 (ATLAS_INT_BASE + 26) +#define ATLAS_INT_RES27 (ATLAS_INT_BASE + 27) +#define ATLAS_INT_RES28 (ATLAS_INT_BASE + 28) +#define ATLAS_INT_RES29 (ATLAS_INT_BASE + 29) +#define ATLAS_INT_RES30 (ATLAS_INT_BASE + 30) +#define ATLAS_INT_RES31 (ATLAS_INT_BASE + 31) +#define ATLAS_INT_END (ATLAS_INT_BASE + 31) + +/* + * Interrupts 64..127 are used for Soc-it Classic interrupts + */ +#define MSC01C_INT_BASE 64 + +/* SOC-it Classic interrupt offsets */ +#define MSC01C_INT_TMR 0 +#define MSC01C_INT_PCI 1 + +/* + * Interrupts 64..127 are used for Soc-it EIC interrupts + */ +#define MSC01E_INT_BASE 64 + +/* SOC-it EIC interrupt offsets */ +#define MSC01E_INT_SW0 1 +#define MSC01E_INT_SW1 2 +#define MSC01E_INT_MB0 3 +#define MSC01E_INT_ATLAS MSC01E_INT_MB0 +#define MSC01E_INT_MB1 4 +#define MSC01E_INT_MB2 5 +#define MSC01E_INT_MB3 6 +#define MSC01E_INT_MB4 7 +#define MSC01E_INT_TMR 8 +#define MSC01E_INT_PCI 9 +#define MSC01E_INT_PERFCTR 10 +#define MSC01E_INT_CPUCTR 11 #endif /* !(_MIPS_ATLASINT_H) */ -- cgit v1.2.3 From 6b3e5f44b56745daad8cd913ccc7bcd9a9ece5ea Mon Sep 17 00:00:00 2001 From: Yoichi Yuasa Date: Mon, 31 Jul 2006 23:01:37 +0900 Subject: [MIPS] Use common definitions from asm-generic/signal.h Signed-off-by: Yoichi Yuasa Signed-off-by: Ralf Baechle --- include/asm-mips/signal.h | 9 +-------- 1 file changed, 1 insertion(+), 8 deletions(-) (limited to 'include') diff --git a/include/asm-mips/signal.h b/include/asm-mips/signal.h index 87a1dff95199..5fc3a599d014 100644 --- a/include/asm-mips/signal.h +++ b/include/asm-mips/signal.h @@ -111,14 +111,7 @@ typedef unsigned long old_sigset_t; /* at least 32 bits */ #define SIG_SETMASK32 256 /* Goodie from SGI for BSD compatibility: set only the low 32 bit of the sigset. */ -/* Type of a signal handler. */ -typedef void __signalfn_t(int); -typedef __signalfn_t __user *__sighandler_t; - -/* Fake signal functions */ -#define SIG_DFL ((__sighandler_t)0) /* default signal handling */ -#define SIG_IGN ((__sighandler_t)1) /* ignore signal */ -#define SIG_ERR ((__sighandler_t)-1) /* error return from signal */ +#include struct sigaction { unsigned int sa_flags; -- cgit v1.2.3 From 633fd568c1db825b9eb563681af09260ecee87b6 Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Fri, 4 Aug 2006 01:49:31 +0100 Subject: [MIPS] Move definition of IRIX compat constant into IRIX compat code. Signed-off-by: Ralf Baechle --- arch/mips/kernel/irixsig.c | 3 +++ include/asm-mips/signal.h | 2 -- 2 files changed, 3 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/arch/mips/kernel/irixsig.c b/arch/mips/kernel/irixsig.c index 719364752e77..2132485caa74 100644 --- a/arch/mips/kernel/irixsig.c +++ b/arch/mips/kernel/irixsig.c @@ -323,6 +323,9 @@ struct sigact_irix5 { int _unused0[2]; }; +#define SIG_SETMASK32 256 /* Goodie from SGI for BSD compatibility: + set only the low 32 bit of the sigset. */ + #ifdef DEBUG_SIG static inline void dump_sigact_irix5(struct sigact_irix5 *p) { diff --git a/include/asm-mips/signal.h b/include/asm-mips/signal.h index 5fc3a599d014..8b391a2f0814 100644 --- a/include/asm-mips/signal.h +++ b/include/asm-mips/signal.h @@ -108,8 +108,6 @@ typedef unsigned long old_sigset_t; /* at least 32 bits */ #define SIG_BLOCK 1 /* for blocking signals */ #define SIG_UNBLOCK 2 /* for unblocking signals */ #define SIG_SETMASK 3 /* for setting the signal mask */ -#define SIG_SETMASK32 256 /* Goodie from SGI for BSD compatibility: - set only the low 32 bit of the sigset. */ #include -- cgit v1.2.3 From bdb37c8d63f9455cd2ea505d62d0d6de221f3c76 Mon Sep 17 00:00:00 2001 From: Yoichi Yuasa Date: Wed, 16 Aug 2006 23:10:00 +0900 Subject: [MIPS] Remove F_SETSIG and F_GETSIG in favor of the asm-generic definitions. Signed-off-by: Yoichi Yuasa Signed-off-by: Ralf Baechle --- include/asm-mips/fcntl.h | 2 -- 1 file changed, 2 deletions(-) (limited to 'include') diff --git a/include/asm-mips/fcntl.h b/include/asm-mips/fcntl.h index 787220e6c1fc..00a50ec1c19f 100644 --- a/include/asm-mips/fcntl.h +++ b/include/asm-mips/fcntl.h @@ -25,8 +25,6 @@ #define F_SETOWN 24 /* for sockets. */ #define F_GETOWN 23 /* for sockets. */ -#define F_SETSIG 10 /* for sockets. */ -#define F_GETSIG 11 /* for sockets. */ #ifndef __mips64 #define F_GETLK64 33 /* using 'struct flock64' */ -- cgit v1.2.3 From 3c70f12bfaec6e1a1c4bfb94aec0c17675bc9310 Mon Sep 17 00:00:00 2001 From: Atsushi Nemoto Date: Sun, 20 Aug 2006 00:33:38 +0900 Subject: [MIPS] Qemu does not have D-cache aliases Signed-off-by: Atsushi Nemoto Signed-off-by: Ralf Baechle --- include/asm-mips/mach-qemu/cpu-feature-overrides.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/asm-mips/mach-qemu/cpu-feature-overrides.h b/include/asm-mips/mach-qemu/cpu-feature-overrides.h index f4e370e27168..529445dacedb 100644 --- a/include/asm-mips/mach-qemu/cpu-feature-overrides.h +++ b/include/asm-mips/mach-qemu/cpu-feature-overrides.h @@ -20,7 +20,7 @@ #define cpu_has_llsc 1 #define cpu_has_vtag_icache 0 -#define cpu_has_dc_aliases (PAGE_SIZE < 0x4000) +#define cpu_has_dc_aliases 0 #define cpu_has_ic_fills_f_dc 0 #define cpu_has_dsp 0 -- cgit v1.2.3 From 6b8aab09309c577318f8484fce401e5c3546bb3b Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Fri, 25 Aug 2006 12:34:33 +0100 Subject: [MIPS] Reformat missformated SMTC bits. Signed-off-by: Ralf Baechle --- include/asm-mips/mmu_context.h | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'include') diff --git a/include/asm-mips/mmu_context.h b/include/asm-mips/mmu_context.h index 18b69de87daa..fe065d6070ca 100644 --- a/include/asm-mips/mmu_context.h +++ b/include/asm-mips/mmu_context.h @@ -262,10 +262,10 @@ drop_mmu_context(struct mm_struct *mm, unsigned cpu) /* See comments for similar code above */ prevvpe = dvpe(); oldasid = (read_c0_entryhi() & ASID_MASK); - if(smtc_live_asid[mytlb][oldasid]) { - smtc_live_asid[mytlb][oldasid] &= ~(0x1 << cpu); - if(smtc_live_asid[mytlb][oldasid] == 0) - smtc_flush_tlb_asid(oldasid); + if (smtc_live_asid[mytlb][oldasid]) { + smtc_live_asid[mytlb][oldasid] &= ~(0x1 << cpu); + if(smtc_live_asid[mytlb][oldasid] == 0) + smtc_flush_tlb_asid(oldasid); } /* See comments for similar code above */ write_c0_entryhi((read_c0_entryhi() & ~HW_ASID_MASK) -- cgit v1.2.3 From 0c68a9b6a7da0cc9095c117bea573f9058b00fff Mon Sep 17 00:00:00 2001 From: "thomas@koeller.dyndns.org" Date: Sun, 27 Aug 2006 13:54:31 +0200 Subject: [MIPS] Move excite_fpga.h to include/asm-mips/mach-excite excite_fpga.h, like all platform headers, really belongs in the platform header directory. Signed-off-by: Thomas Koeller Signed-off-by: Ralf Baechle --- arch/mips/basler/excite/excite_fpga.h | 80 ------------------------------ include/asm-mips/mach-excite/excite_fpga.h | 80 ++++++++++++++++++++++++++++++ 2 files changed, 80 insertions(+), 80 deletions(-) delete mode 100644 arch/mips/basler/excite/excite_fpga.h create mode 100644 include/asm-mips/mach-excite/excite_fpga.h (limited to 'include') diff --git a/arch/mips/basler/excite/excite_fpga.h b/arch/mips/basler/excite/excite_fpga.h deleted file mode 100644 index 38fcda703a0b..000000000000 --- a/arch/mips/basler/excite/excite_fpga.h +++ /dev/null @@ -1,80 +0,0 @@ -#ifndef EXCITE_FPGA_H_INCLUDED -#define EXCITE_FPGA_H_INCLUDED - - -/** - * Adress alignment of the individual FPGA bytes. - * The address arrangement of the individual bytes of the FPGA is two - * byte aligned at the embedded MK2 platform. - */ -#ifdef EXCITE_CCI_FPGA_MK2 -typedef unsigned char excite_cci_fpga_align_t __attribute__ ((aligned(2))); -#else -typedef unsigned char excite_cci_fpga_align_t; -#endif - - -/** - * Size of Dual Ported RAM. - */ -#define EXCITE_DPR_SIZE 263 - - -/** - * Size of Reserved Status Fields in Dual Ported RAM. - */ -#define EXCITE_DPR_STATUS_SIZE 7 - - - -/** - * FPGA. - * Hardware register layout of the FPGA interface. The FPGA must accessed - * byte wise solely. - * @see EXCITE_CCI_DPR_MK2 - */ -typedef struct excite_fpga { - - /** - * Dual Ported RAM. - */ - excite_cci_fpga_align_t dpr[EXCITE_DPR_SIZE]; - - /** - * Status. - */ - excite_cci_fpga_align_t status[EXCITE_DPR_STATUS_SIZE]; - -#ifdef EXCITE_CCI_FPGA_MK2 - /** - * RM9000 Interrupt. - * Write access initiates interrupt at the RM9000 (MIPS) processor of the eXcite. - */ - excite_cci_fpga_align_t rm9k_int; -#else - /** - * MK2 Interrupt. - * Write access initiates interrupt at the ARM processor of the MK2. - */ - excite_cci_fpga_align_t mk2_int; - - excite_cci_fpga_align_t gap[0x1000-0x10f]; - - /** - * IRQ Source/Acknowledge. - */ - excite_cci_fpga_align_t rm9k_irq_src; - - /** - * IRQ Mask. - * Set bits enable the related interrupt. - */ - excite_cci_fpga_align_t rm9k_irq_mask; -#endif - - -} excite_fpga; - - - -#endif /* ndef EXCITE_FPGA_H_INCLUDED */ diff --git a/include/asm-mips/mach-excite/excite_fpga.h b/include/asm-mips/mach-excite/excite_fpga.h new file mode 100644 index 000000000000..38fcda703a0b --- /dev/null +++ b/include/asm-mips/mach-excite/excite_fpga.h @@ -0,0 +1,80 @@ +#ifndef EXCITE_FPGA_H_INCLUDED +#define EXCITE_FPGA_H_INCLUDED + + +/** + * Adress alignment of the individual FPGA bytes. + * The address arrangement of the individual bytes of the FPGA is two + * byte aligned at the embedded MK2 platform. + */ +#ifdef EXCITE_CCI_FPGA_MK2 +typedef unsigned char excite_cci_fpga_align_t __attribute__ ((aligned(2))); +#else +typedef unsigned char excite_cci_fpga_align_t; +#endif + + +/** + * Size of Dual Ported RAM. + */ +#define EXCITE_DPR_SIZE 263 + + +/** + * Size of Reserved Status Fields in Dual Ported RAM. + */ +#define EXCITE_DPR_STATUS_SIZE 7 + + + +/** + * FPGA. + * Hardware register layout of the FPGA interface. The FPGA must accessed + * byte wise solely. + * @see EXCITE_CCI_DPR_MK2 + */ +typedef struct excite_fpga { + + /** + * Dual Ported RAM. + */ + excite_cci_fpga_align_t dpr[EXCITE_DPR_SIZE]; + + /** + * Status. + */ + excite_cci_fpga_align_t status[EXCITE_DPR_STATUS_SIZE]; + +#ifdef EXCITE_CCI_FPGA_MK2 + /** + * RM9000 Interrupt. + * Write access initiates interrupt at the RM9000 (MIPS) processor of the eXcite. + */ + excite_cci_fpga_align_t rm9k_int; +#else + /** + * MK2 Interrupt. + * Write access initiates interrupt at the ARM processor of the MK2. + */ + excite_cci_fpga_align_t mk2_int; + + excite_cci_fpga_align_t gap[0x1000-0x10f]; + + /** + * IRQ Source/Acknowledge. + */ + excite_cci_fpga_align_t rm9k_irq_src; + + /** + * IRQ Mask. + * Set bits enable the related interrupt. + */ + excite_cci_fpga_align_t rm9k_irq_mask; +#endif + + +} excite_fpga; + + + +#endif /* ndef EXCITE_FPGA_H_INCLUDED */ -- cgit v1.2.3 From 9dbd7b9142e95867ee8a56da5d45c72884c107d3 Mon Sep 17 00:00:00 2001 From: Peter Watkins Date: Wed, 23 Aug 2006 11:15:49 -0400 Subject: [MIPS] Fix USER_PTRS_PER_PGD for 64K page size. The code in pgtable-64.h assumes TASK_SIZE is always bigger than a first level PGDIR_SIZE. This is not the case for 64K pages, where task size is 40 bits (1TB) and a pgd entry can map 42 bits. This leads to USER_PTRS_PER_PGD being zero for 64K pages. Signed-off-by: Peter Watkins Signed-off-by: Ralf Baechle --- include/asm-mips/pgtable-64.h | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/asm-mips/pgtable-64.h b/include/asm-mips/pgtable-64.h index c59a1e21f5b0..d05fb6f38aa7 100644 --- a/include/asm-mips/pgtable-64.h +++ b/include/asm-mips/pgtable-64.h @@ -93,8 +93,12 @@ #define PTRS_PER_PMD ((PAGE_SIZE << PMD_ORDER) / sizeof(pmd_t)) #define PTRS_PER_PTE ((PAGE_SIZE << PTE_ORDER) / sizeof(pte_t)) +#if PGDIR_SIZE >= TASK_SIZE +#define USER_PTRS_PER_PGD (1) +#else #define USER_PTRS_PER_PGD (TASK_SIZE / PGDIR_SIZE) -#define FIRST_USER_ADDRESS 0 +#endif +#define FIRST_USER_ADDRESS 0UL #define VMALLOC_START MAP_BASE #define VMALLOC_END \ -- cgit v1.2.3 From d7d86aa88a1f3922b85e39edd8a6d6c01e939842 Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Fri, 8 Sep 2006 04:13:49 +0200 Subject: [MIPS] Cleanup hazard handling. Mostly based on patch by Chris Dearman and cleanups from Yoichi. Signed-off-by: Ralf Baechle --- include/asm-mips/hazards.h | 362 ++++++++++++++++----------------------------- 1 file changed, 126 insertions(+), 236 deletions(-) (limited to 'include') diff --git a/include/asm-mips/hazards.h b/include/asm-mips/hazards.h index 25f5e8a4177d..bf0b80404946 100644 --- a/include/asm-mips/hazards.h +++ b/include/asm-mips/hazards.h @@ -11,103 +11,96 @@ #define _ASM_HAZARDS_H -#ifdef __ASSEMBLY__ - - .macro _ssnop - sll $0, $0, 1 - .endm - - .macro _ehb - sll $0, $0, 3 - .endm - -/* - * RM9000 hazards. When the JTLB is updated by tlbwi or tlbwr, a subsequent - * use of the JTLB for instructions should not occur for 4 cpu cycles and use - * for data translations should not occur for 3 cpu cycles. - */ -#ifdef CONFIG_CPU_RM9000 - - .macro mtc0_tlbw_hazard - .set push - .set mips32 - _ssnop; _ssnop; _ssnop; _ssnop - .set pop - .endm - - .macro tlbw_eret_hazard - .set push - .set mips32 - _ssnop; _ssnop; _ssnop; _ssnop - .set pop - .endm - +#ifdef __ASSEMBLER__ +#define ASMMACRO(name, code...) .macro name; code; .endm #else -/* - * The taken branch will result in a two cycle penalty for the two killed - * instructions on R4000 / R4400. Other processors only have a single cycle - * hazard so this is nice trick to have an optimal code for a range of - * processors. - */ - .macro mtc0_tlbw_hazard - b . + 8 - .endm +#define ASMMACRO(name, code...) \ +__asm__(".macro " #name "; " #code "; .endm"); \ + \ +static inline void name(void) \ +{ \ + __asm__ __volatile__ (#name); \ +} - .macro tlbw_eret_hazard - .endm #endif +ASMMACRO(_ssnop, + sll $0, $0, 1 + ) + +ASMMACRO(_ehb, + sll $0, $0, 3 + ) + /* - * mtc0->mfc0 hazard - * The 24K has a 2 cycle mtc0/mfc0 execution hazard. - * It is a MIPS32R2 processor so ehb will clear the hazard. + * TLB hazards */ +#if defined(CONFIG_CPU_MIPSR2) -#ifdef CONFIG_CPU_MIPSR2 /* - * Use a macro for ehb unless explicit support for MIPSR2 is enabled + * MIPSR2 defines ehb for hazard avoidance */ -#define irq_enable_hazard \ +ASMMACRO(mtc0_tlbw_hazard, + _ehb + ) +ASMMACRO(tlbw_use_hazard, + _ehb + ) +ASMMACRO(tlb_probe_hazard, + _ehb + ) +ASMMACRO(irq_enable_hazard, + ) +ASMMACRO(irq_disable_hazard, _ehb - -#define irq_disable_hazard \ - _ehb - -#elif defined(CONFIG_CPU_R10000) || defined(CONFIG_CPU_RM9000) - + ) +ASMMACRO(back_to_back_c0_hazard, + _ehb + ) /* - * R10000 rocks - all hazards handled in hardware, so this becomes a nobrainer. + * gcc has a tradition of misscompiling the previous construct using the + * address of a label as argument to inline assembler. Gas otoh has the + * annoying difference between la and dla which are only usable for 32-bit + * rsp. 64-bit code, so can't be used without conditional compilation. + * The alterantive is switching the assembler to 64-bit code which happens + * to work right even for 32-bit code ... */ +#define instruction_hazard() \ +do { \ + unsigned long tmp; \ + \ + __asm__ __volatile__( \ + " .set mips64r2 \n" \ + " dla %0, 1f \n" \ + " jr.hb %0 \n" \ + " .set mips0 \n" \ + "1: \n" \ + : "=r" (tmp)); \ +} while (0) -#define irq_enable_hazard - -#define irq_disable_hazard - -#else +#elif defined(CONFIG_CPU_R10000) /* - * Classic MIPS needs 1 - 3 nops or ssnops + * R10000 rocks - all hazards handled in hardware, so this becomes a nobrainer. */ -#define irq_enable_hazard -#define irq_disable_hazard \ - _ssnop; _ssnop; _ssnop -#endif - -#else /* __ASSEMBLY__ */ - -__asm__( - " .macro _ssnop \n" - " sll $0, $0, 1 \n" - " .endm \n" - " \n" - " .macro _ehb \n" - " sll $0, $0, 3 \n" - " .endm \n"); +ASMMACRO(mtc0_tlbw_hazard, + ) +ASMMACRO(tlbw_use_hazard, + ) +ASMMACRO(tlb_probe_hazard, + ) +ASMMACRO(irq_enable_hazard, + ) +ASMMACRO(irq_disable_hazard, + ) +ASMMACRO(back_to_back_c0_hazard, + ) +#define instruction_hazard() do { } while (0) -#ifdef CONFIG_CPU_RM9000 +#elif defined(CONFIG_CPU_RM9000) /* * RM9000 hazards. When the JTLB is updated by tlbwi or tlbwr, a subsequent @@ -115,176 +108,73 @@ __asm__( * for data translations should not occur for 3 cpu cycles. */ -#define mtc0_tlbw_hazard() \ - __asm__ __volatile__( \ - " .set mips32 \n" \ - " _ssnop \n" \ - " _ssnop \n" \ - " _ssnop \n" \ - " _ssnop \n" \ - " .set mips0 \n") - -#define tlbw_use_hazard() \ - __asm__ __volatile__( \ - " .set mips32 \n" \ - " _ssnop \n" \ - " _ssnop \n" \ - " _ssnop \n" \ - " _ssnop \n" \ - " .set mips0 \n") - -#else - -/* - * Overkill warning ... - */ -#define mtc0_tlbw_hazard() \ - __asm__ __volatile__( \ - " .set noreorder \n" \ - " nop \n" \ - " nop \n" \ - " nop \n" \ - " nop \n" \ - " nop \n" \ - " nop \n" \ - " .set reorder \n") - -#define tlbw_use_hazard() \ - __asm__ __volatile__( \ - " .set noreorder \n" \ - " nop \n" \ - " nop \n" \ - " nop \n" \ - " nop \n" \ - " nop \n" \ - " nop \n" \ - " .set reorder \n") - -#endif - -/* - * Interrupt enable/disable hazards - * Some processors have hazards when modifying - * the status register to change the interrupt state - */ - -#ifdef CONFIG_CPU_MIPSR2 - -__asm__(" .macro irq_enable_hazard \n" - " _ehb \n" - " .endm \n" - " \n" - " .macro irq_disable_hazard \n" - " _ehb \n" - " .endm \n"); +ASMMACRO(mtc0_tlbw_hazard, + _ssnop; _ssnop; _ssnop; _ssnop + ) +ASMMACRO(tlbw_use_hazard, + _ssnop; _ssnop; _ssnop; _ssnop + ) +ASMMACRO(tlb_probe_hazard, + _ssnop; _ssnop; _ssnop; _ssnop + ) +ASMMACRO(irq_enable_hazard, + ) +ASMMACRO(irq_disable_hazard, + ) +ASMMACRO(back_to_back_c0_hazard, + ) +#define instruction_hazard() do { } while (0) -#elif defined(CONFIG_CPU_R10000) || defined(CONFIG_CPU_RM9000) +#elif defined(CONFIG_CPU_SB1) /* - * R10000 rocks - all hazards handled in hardware, so this becomes a nobrainer. + * Mostly like R4000 for historic reasons */ - -__asm__( - " .macro irq_enable_hazard \n" - " .endm \n" - " \n" - " .macro irq_disable_hazard \n" - " .endm \n"); +ASMMACRO(mtc0_tlbw_hazard, + ) +ASMMACRO(tlbw_use_hazard, + ) +ASMMACRO(tlb_probe_hazard, + ) +ASMMACRO(irq_enable_hazard, + ) +ASMMACRO(irq_disable_hazard, + _ssnop; _ssnop; _ssnop + ) +ASMMACRO(back_to_back_c0_hazard, + ) +#define instruction_hazard() do { } while (0) #else /* - * Default for classic MIPS processors. Assume worst case hazards but don't - * care about the irq_enable_hazard - sooner or later the hardware will - * enable it and we don't care when exactly. - */ - -__asm__( - " # \n" - " # There is a hazard but we do not care \n" - " # \n" - " .macro\tirq_enable_hazard \n" - " .endm \n" - " \n" - " .macro\tirq_disable_hazard \n" - " _ssnop \n" - " _ssnop \n" - " _ssnop \n" - " .endm \n"); - -#endif - -#define irq_enable_hazard() \ - __asm__ __volatile__("irq_enable_hazard") -#define irq_disable_hazard() \ - __asm__ __volatile__("irq_disable_hazard") - - -/* - * Back-to-back hazards - + * Finally the catchall case for all other processors including R4000, R4400, + * R4600, R4700, R5000, RM7000, NEC VR41xx etc. * - * What is needed to separate a move to cp0 from a subsequent read from the - * same cp0 register? - */ -#ifdef CONFIG_CPU_MIPSR2 - -__asm__(" .macro back_to_back_c0_hazard \n" - " _ehb \n" - " .endm \n"); - -#elif defined(CONFIG_CPU_R10000) || defined(CONFIG_CPU_RM9000) || \ - defined(CONFIG_CPU_SB1) - -__asm__(" .macro back_to_back_c0_hazard \n" - " .endm \n"); - -#else - -__asm__(" .macro back_to_back_c0_hazard \n" - " .set noreorder \n" - " _ssnop \n" - " _ssnop \n" - " _ssnop \n" - " .set reorder \n" - " .endm"); - -#endif - -#define back_to_back_c0_hazard() \ - __asm__ __volatile__("back_to_back_c0_hazard") - - -/* - * Instruction execution hazard - */ -#ifdef CONFIG_CPU_MIPSR2 -/* - * gcc has a tradition of misscompiling the previous construct using the - * address of a label as argument to inline assembler. Gas otoh has the - * annoying difference between la and dla which are only usable for 32-bit - * rsp. 64-bit code, so can't be used without conditional compilation. - * The alterantive is switching the assembler to 64-bit code which happens - * to work right even for 32-bit code ... + * The taken branch will result in a two cycle penalty for the two killed + * instructions on R4000 / R4400. Other processors only have a single cycle + * hazard so this is nice trick to have an optimal code for a range of + * processors. */ -#define instruction_hazard() \ -do { \ - unsigned long tmp; \ - \ - __asm__ __volatile__( \ - " .set mips64r2 \n" \ - " dla %0, 1f \n" \ - " jr.hb %0 \n" \ - " .set mips0 \n" \ - "1: \n" \ - : "=r" (tmp)); \ -} while (0) - -#else +ASMMACRO(mtc0_tlbw_hazard, + nop + ) +ASMMACRO(tlbw_use_hazard, + nop; nop; nop + ) +ASMMACRO(tlb_probe_hazard, + nop; nop; nop + ) +ASMMACRO(irq_enable_hazard, + ) +ASMMACRO(irq_disable_hazard, + nop; nop; nop + ) +ASMMACRO(back_to_back_c0_hazard, + _ssnop; _ssnop; _ssnop; + ) #define instruction_hazard() do { } while (0) -#endif - -extern void mips_ihb(void); -#endif /* __ASSEMBLY__ */ +#endif #endif /* _ASM_HAZARDS_H */ -- cgit v1.2.3 From d48f1de2d8170814fb64effa320848410c466f95 Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Wed, 20 Sep 2006 20:56:02 +0100 Subject: [MIPS] Remove EV96100 as previously announced. Signed-off-by: Ralf Baechle --- Documentation/feature-removal-schedule.txt | 8 - Documentation/kernel-parameters.txt | 2 - arch/mips/Kconfig | 24 - arch/mips/Makefile | 7 - arch/mips/configs/atlas_defconfig | 1 - arch/mips/configs/bigsur_defconfig | 1 - arch/mips/configs/capcella_defconfig | 1 - arch/mips/configs/cobalt_defconfig | 1 - arch/mips/configs/db1000_defconfig | 1 - arch/mips/configs/db1100_defconfig | 1 - arch/mips/configs/db1200_defconfig | 1 - arch/mips/configs/db1500_defconfig | 1 - arch/mips/configs/db1550_defconfig | 1 - arch/mips/configs/ddb5477_defconfig | 1 - arch/mips/configs/decstation_defconfig | 1 - arch/mips/configs/e55_defconfig | 1 - arch/mips/configs/emma2rh_defconfig | 1 - arch/mips/configs/ev64120_defconfig | 1 - arch/mips/configs/ev96100_defconfig | 850 --------------------------- arch/mips/configs/excite_defconfig | 1 - arch/mips/configs/ip22_defconfig | 1 - arch/mips/configs/ip27_defconfig | 1 - arch/mips/configs/ip32_defconfig | 1 - arch/mips/configs/it8172_defconfig | 1 - arch/mips/configs/ivr_defconfig | 1 - arch/mips/configs/jaguar-atx_defconfig | 1 - arch/mips/configs/jmr3927_defconfig | 1 - arch/mips/configs/lasat200_defconfig | 1 - arch/mips/configs/malta_defconfig | 1 - arch/mips/configs/mipssim_defconfig | 1 - arch/mips/configs/mpc30x_defconfig | 1 - arch/mips/configs/ocelot_3_defconfig | 1 - arch/mips/configs/ocelot_c_defconfig | 1 - arch/mips/configs/ocelot_defconfig | 1 - arch/mips/configs/ocelot_g_defconfig | 1 - arch/mips/configs/pb1100_defconfig | 1 - arch/mips/configs/pb1500_defconfig | 1 - arch/mips/configs/pb1550_defconfig | 1 - arch/mips/configs/pnx8550-jbs_defconfig | 1 - arch/mips/configs/pnx8550-v2pci_defconfig | 1 - arch/mips/configs/qemu_defconfig | 1 - arch/mips/configs/rbhma4500_defconfig | 1 - arch/mips/configs/rm200_defconfig | 1 - arch/mips/configs/sb1250-swarm_defconfig | 1 - arch/mips/configs/sead_defconfig | 1 - arch/mips/configs/tb0226_defconfig | 1 - arch/mips/configs/tb0229_defconfig | 1 - arch/mips/configs/tb0287_defconfig | 1 - arch/mips/configs/workpad_defconfig | 1 - arch/mips/configs/wrppmc_defconfig | 1 - arch/mips/configs/yosemite_defconfig | 1 - arch/mips/defconfig | 1 - arch/mips/galileo-boards/ev96100/Makefile | 9 - arch/mips/galileo-boards/ev96100/init.c | 173 ------ arch/mips/galileo-boards/ev96100/irq.c | 77 --- arch/mips/galileo-boards/ev96100/puts.c | 138 ----- arch/mips/galileo-boards/ev96100/reset.c | 70 --- arch/mips/galileo-boards/ev96100/setup.c | 159 ----- arch/mips/galileo-boards/ev96100/time.c | 88 --- arch/mips/pci/Makefile | 2 - arch/mips/pci/fixup-ev96100.c | 48 -- arch/mips/pci/ops-gt96100.c | 169 ------ arch/mips/pci/pci-ev96100.c | 63 -- include/asm-mips/bootinfo.h | 3 +- include/asm-mips/galileo-boards/gt96100.h | 427 -------------- include/asm-mips/mach-ev96100/mach-gt64120.h | 46 -- include/asm-mips/serial.h | 4 +- include/linux/pci_ids.h | 3 - 68 files changed, 3 insertions(+), 2414 deletions(-) delete mode 100644 arch/mips/configs/ev96100_defconfig delete mode 100644 arch/mips/galileo-boards/ev96100/Makefile delete mode 100644 arch/mips/galileo-boards/ev96100/init.c delete mode 100644 arch/mips/galileo-boards/ev96100/irq.c delete mode 100644 arch/mips/galileo-boards/ev96100/puts.c delete mode 100644 arch/mips/galileo-boards/ev96100/reset.c delete mode 100644 arch/mips/galileo-boards/ev96100/setup.c delete mode 100644 arch/mips/galileo-boards/ev96100/time.c delete mode 100644 arch/mips/pci/fixup-ev96100.c delete mode 100644 arch/mips/pci/ops-gt96100.c delete mode 100644 arch/mips/pci/pci-ev96100.c delete mode 100644 include/asm-mips/galileo-boards/gt96100.h delete mode 100644 include/asm-mips/mach-ev96100/mach-gt64120.h (limited to 'include') diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt index 611acc32fdf5..bf56b20652b0 100644 --- a/Documentation/feature-removal-schedule.txt +++ b/Documentation/feature-removal-schedule.txt @@ -217,14 +217,6 @@ Who: Nick Piggin --------------------------- -What: Support for the MIPS EV96100 evaluation board -When: September 2006 -Why: Does no longer build since at least November 15, 2003, apparently - no userbase left. -Who: Ralf Baechle - ---------------------------- - What: Support for the Momentum / PMC-Sierra Jaguar ATX evaluation board When: September 2006 Why: Does no longer build since quite some time, and was never popular, diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index c918cc3f65fb..255ec535bba8 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -573,8 +573,6 @@ running once the system is up. gscd= [HW,CD] Format: - gt96100eth= [NET] MIPS GT96100 Advanced Communication Controller - gus= [HW,OSS] Format: ,,, diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index 235208d658ff..30750c54bdf5 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -203,26 +203,6 @@ config MIPS_EV64120 . Say Y here if you wish to build a kernel for this platform. -config MIPS_EV96100 - bool "Galileo EV96100 Evaluation board (EXPERIMENTAL)" - depends on EXPERIMENTAL - select DMA_NONCOHERENT - select HW_HAS_PCI - select IRQ_CPU - select MIPS_GT96100 - select RM7000_CPU_SCACHE - select SWAP_IO_SPACE - select SYS_HAS_CPU_R5000 - select SYS_HAS_CPU_RM7000 - select SYS_SUPPORTS_32BIT_KERNEL - select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL - select SYS_SUPPORTS_BIG_ENDIAN - help - This is an evaluation board based on the Galileo GT-96100 LAN/WAN - communications controllers containing a MIPS R5000 compatible core - running at 83MHz. Their website is . Say Y - here if you wish to build a kernel for this platform. - config MIPS_IVR bool "Globespan IVR board" select DMA_NONCOHERENT @@ -1069,10 +1049,6 @@ config AU1X00_USB_DEVICE depends on MIPS_PB1500 || MIPS_PB1100 || MIPS_PB1000 default n -config MIPS_GT96100 - bool - select MIPS_GT64120 - config IT8172_CIR bool depends on MIPS_ITE8172 || MIPS_IVR diff --git a/arch/mips/Makefile b/arch/mips/Makefile index f4227d24227d..e521826b4234 100644 --- a/arch/mips/Makefile +++ b/arch/mips/Makefile @@ -279,13 +279,6 @@ core-$(CONFIG_MIPS_EV64120) += arch/mips/gt64120/common/ cflags-$(CONFIG_MIPS_EV64120) += -Iinclude/asm-mips/mach-ev64120 load-$(CONFIG_MIPS_EV64120) += 0xffffffff80100000 -# -# Galileo EV96100 Board -# -core-$(CONFIG_MIPS_EV96100) += arch/mips/galileo-boards/ev96100/ -cflags-$(CONFIG_MIPS_EV96100) += -Iinclude/asm-mips/mach-ev96100 -load-$(CONFIG_MIPS_EV96100) += 0xffffffff80100000 - # # Wind River PPMC Board (4KC + GT64120) # diff --git a/arch/mips/configs/atlas_defconfig b/arch/mips/configs/atlas_defconfig index 54274065e9a5..2774ba9606b7 100644 --- a/arch/mips/configs/atlas_defconfig +++ b/arch/mips/configs/atlas_defconfig @@ -25,7 +25,6 @@ CONFIG_MIPS=y # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set diff --git a/arch/mips/configs/bigsur_defconfig b/arch/mips/configs/bigsur_defconfig index 887fd959482a..e12a475dcbf4 100644 --- a/arch/mips/configs/bigsur_defconfig +++ b/arch/mips/configs/bigsur_defconfig @@ -25,7 +25,6 @@ CONFIG_MIPS=y # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set diff --git a/arch/mips/configs/capcella_defconfig b/arch/mips/configs/capcella_defconfig index a01344f3a4c2..bfade9abb767 100644 --- a/arch/mips/configs/capcella_defconfig +++ b/arch/mips/configs/capcella_defconfig @@ -25,7 +25,6 @@ CONFIG_MIPS=y # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set diff --git a/arch/mips/configs/cobalt_defconfig b/arch/mips/configs/cobalt_defconfig index c95682445a28..78db2a8a711b 100644 --- a/arch/mips/configs/cobalt_defconfig +++ b/arch/mips/configs/cobalt_defconfig @@ -25,7 +25,6 @@ CONFIG_MIPS=y CONFIG_MIPS_COBALT=y # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set diff --git a/arch/mips/configs/db1000_defconfig b/arch/mips/configs/db1000_defconfig index c2f33d3af62c..93cca1585bc3 100644 --- a/arch/mips/configs/db1000_defconfig +++ b/arch/mips/configs/db1000_defconfig @@ -25,7 +25,6 @@ CONFIG_MIPS_DB1000=y # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set diff --git a/arch/mips/configs/db1100_defconfig b/arch/mips/configs/db1100_defconfig index 8c44d16ae9a2..ffd99252a837 100644 --- a/arch/mips/configs/db1100_defconfig +++ b/arch/mips/configs/db1100_defconfig @@ -25,7 +25,6 @@ CONFIG_MIPS_DB1100=y # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set diff --git a/arch/mips/configs/db1200_defconfig b/arch/mips/configs/db1200_defconfig index c13768e75ac5..63eac5e89b9c 100644 --- a/arch/mips/configs/db1200_defconfig +++ b/arch/mips/configs/db1200_defconfig @@ -25,7 +25,6 @@ CONFIG_MIPS_DB1200=y # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set diff --git a/arch/mips/configs/db1500_defconfig b/arch/mips/configs/db1500_defconfig index 8aea73fae7fb..25a095f7dc4e 100644 --- a/arch/mips/configs/db1500_defconfig +++ b/arch/mips/configs/db1500_defconfig @@ -25,7 +25,6 @@ CONFIG_MIPS_DB1500=y # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set diff --git a/arch/mips/configs/db1550_defconfig b/arch/mips/configs/db1550_defconfig index 90ccb7359630..dda469c842b3 100644 --- a/arch/mips/configs/db1550_defconfig +++ b/arch/mips/configs/db1550_defconfig @@ -25,7 +25,6 @@ CONFIG_MIPS_DB1550=y # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set diff --git a/arch/mips/configs/ddb5477_defconfig b/arch/mips/configs/ddb5477_defconfig index b598cf08f156..fcd3dd19bc74 100644 --- a/arch/mips/configs/ddb5477_defconfig +++ b/arch/mips/configs/ddb5477_defconfig @@ -25,7 +25,6 @@ CONFIG_MIPS=y # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set diff --git a/arch/mips/configs/decstation_defconfig b/arch/mips/configs/decstation_defconfig index 597150b14077..8683e0df12e0 100644 --- a/arch/mips/configs/decstation_defconfig +++ b/arch/mips/configs/decstation_defconfig @@ -25,7 +25,6 @@ CONFIG_MIPS=y # CONFIG_MIPS_COBALT is not set CONFIG_MACH_DECSTATION=y # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set diff --git a/arch/mips/configs/e55_defconfig b/arch/mips/configs/e55_defconfig index d9a0d0eb0683..4ace61c95778 100644 --- a/arch/mips/configs/e55_defconfig +++ b/arch/mips/configs/e55_defconfig @@ -25,7 +25,6 @@ CONFIG_MIPS=y # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set diff --git a/arch/mips/configs/emma2rh_defconfig b/arch/mips/configs/emma2rh_defconfig index 375b2ac24a49..5847c916c130 100644 --- a/arch/mips/configs/emma2rh_defconfig +++ b/arch/mips/configs/emma2rh_defconfig @@ -25,7 +25,6 @@ CONFIG_MIPS=y # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set diff --git a/arch/mips/configs/ev64120_defconfig b/arch/mips/configs/ev64120_defconfig index b0afc118bd5c..bc4c4f125c48 100644 --- a/arch/mips/configs/ev64120_defconfig +++ b/arch/mips/configs/ev64120_defconfig @@ -25,7 +25,6 @@ CONFIG_MIPS=y # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set CONFIG_MIPS_EV64120=y -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set diff --git a/arch/mips/configs/ev96100_defconfig b/arch/mips/configs/ev96100_defconfig deleted file mode 100644 index 0bdc10f11610..000000000000 --- a/arch/mips/configs/ev96100_defconfig +++ /dev/null @@ -1,850 +0,0 @@ -# -# Automatically generated make config: don't edit -# Linux kernel version: 2.6.18-rc1 -# Thu Jul 6 10:04:05 2006 -# -CONFIG_MIPS=y - -# -# Machine selection -# -# CONFIG_MIPS_MTX1 is not set -# CONFIG_MIPS_BOSPORUS is not set -# CONFIG_MIPS_PB1000 is not set -# CONFIG_MIPS_PB1100 is not set -# CONFIG_MIPS_PB1500 is not set -# CONFIG_MIPS_PB1550 is not set -# CONFIG_MIPS_PB1200 is not set -# CONFIG_MIPS_DB1000 is not set -# CONFIG_MIPS_DB1100 is not set -# CONFIG_MIPS_DB1500 is not set -# CONFIG_MIPS_DB1550 is not set -# CONFIG_MIPS_DB1200 is not set -# CONFIG_MIPS_MIRAGE is not set -# CONFIG_BASLER_EXCITE is not set -# CONFIG_MIPS_COBALT is not set -# CONFIG_MACH_DECSTATION is not set -# CONFIG_MIPS_EV64120 is not set -CONFIG_MIPS_EV96100=y -# CONFIG_MIPS_IVR is not set -# CONFIG_MIPS_ITE8172 is not set -# CONFIG_MACH_JAZZ is not set -# CONFIG_LASAT is not set -# CONFIG_MIPS_ATLAS is not set -# CONFIG_MIPS_MALTA is not set -# CONFIG_MIPS_SEAD is not set -# CONFIG_WR_PPMC is not set -# CONFIG_MIPS_SIM is not set -# CONFIG_MOMENCO_JAGUAR_ATX is not set -# CONFIG_MOMENCO_OCELOT is not set -# CONFIG_MOMENCO_OCELOT_3 is not set -# CONFIG_MOMENCO_OCELOT_C is not set -# CONFIG_MOMENCO_OCELOT_G is not set -# CONFIG_MIPS_XXS1500 is not set -# CONFIG_PNX8550_V2PCI is not set -# CONFIG_PNX8550_JBS is not set -# CONFIG_DDB5477 is not set -# CONFIG_MACH_VR41XX is not set -# CONFIG_PMC_YOSEMITE is not set -# CONFIG_QEMU is not set -# CONFIG_MARKEINS is not set -# CONFIG_SGI_IP22 is not set -# CONFIG_SGI_IP27 is not set -# CONFIG_SGI_IP32 is not set -# CONFIG_SIBYTE_BIGSUR is not set -# CONFIG_SIBYTE_SWARM is not set -# CONFIG_SIBYTE_SENTOSA is not set -# CONFIG_SIBYTE_RHONE is not set -# CONFIG_SIBYTE_CARMEL is not set -# CONFIG_SIBYTE_PTSWARM is not set -# CONFIG_SIBYTE_LITTLESUR is not set -# CONFIG_SIBYTE_CRHINE is not set -# CONFIG_SIBYTE_CRHONE is not set -# CONFIG_SNI_RM200_PCI is not set -# CONFIG_TOSHIBA_JMR3927 is not set -# CONFIG_TOSHIBA_RBTX4927 is not set -# CONFIG_TOSHIBA_RBTX4938 is not set -CONFIG_RWSEM_GENERIC_SPINLOCK=y -CONFIG_GENERIC_FIND_NEXT_BIT=y -CONFIG_GENERIC_HWEIGHT=y -CONFIG_GENERIC_CALIBRATE_DELAY=y -CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER=y -CONFIG_DMA_NONCOHERENT=y -CONFIG_DMA_NEED_PCI_MAP_STATE=y -CONFIG_CPU_BIG_ENDIAN=y -# CONFIG_CPU_LITTLE_ENDIAN is not set -CONFIG_SYS_SUPPORTS_BIG_ENDIAN=y -CONFIG_IRQ_CPU=y -CONFIG_MIPS_GT64120=y -CONFIG_SWAP_IO_SPACE=y -CONFIG_MIPS_GT96100=y -CONFIG_MIPS_L1_CACHE_SHIFT=5 - -# -# CPU selection -# -# CONFIG_CPU_MIPS32_R1 is not set -# CONFIG_CPU_MIPS32_R2 is not set -# CONFIG_CPU_MIPS64_R1 is not set -# CONFIG_CPU_MIPS64_R2 is not set -# CONFIG_CPU_R3000 is not set -# CONFIG_CPU_TX39XX is not set -# CONFIG_CPU_VR41XX is not set -# CONFIG_CPU_R4300 is not set -# CONFIG_CPU_R4X00 is not set -# CONFIG_CPU_TX49XX is not set -# CONFIG_CPU_R5000 is not set -# CONFIG_CPU_R5432 is not set -# CONFIG_CPU_R6000 is not set -# CONFIG_CPU_NEVADA is not set -# CONFIG_CPU_R8000 is not set -# CONFIG_CPU_R10000 is not set -CONFIG_CPU_RM7000=y -# CONFIG_CPU_RM9000 is not set -# CONFIG_CPU_SB1 is not set -CONFIG_SYS_HAS_CPU_R5000=y -CONFIG_SYS_HAS_CPU_RM7000=y -CONFIG_SYS_SUPPORTS_32BIT_KERNEL=y -CONFIG_SYS_SUPPORTS_64BIT_KERNEL=y -CONFIG_CPU_SUPPORTS_32BIT_KERNEL=y -CONFIG_CPU_SUPPORTS_64BIT_KERNEL=y - -# -# Kernel type -# -CONFIG_32BIT=y -# CONFIG_64BIT is not set -CONFIG_PAGE_SIZE_4KB=y -# CONFIG_PAGE_SIZE_8KB is not set -# CONFIG_PAGE_SIZE_16KB is not set -# CONFIG_PAGE_SIZE_64KB is not set -CONFIG_BOARD_SCACHE=y -CONFIG_RM7000_CPU_SCACHE=y -CONFIG_CPU_HAS_PREFETCH=y -CONFIG_MIPS_MT_DISABLED=y -# CONFIG_MIPS_MT_SMTC is not set -# CONFIG_MIPS_MT_SMP is not set -# CONFIG_MIPS_VPE_LOADER is not set -# CONFIG_64BIT_PHYS_ADDR is not set -CONFIG_CPU_HAS_LLSC=y -CONFIG_CPU_HAS_SYNC=y -CONFIG_GENERIC_HARDIRQS=y -CONFIG_GENERIC_IRQ_PROBE=y -CONFIG_CPU_SUPPORTS_HIGHMEM=y -CONFIG_ARCH_FLATMEM_ENABLE=y -CONFIG_SELECT_MEMORY_MODEL=y -CONFIG_FLATMEM_MANUAL=y -# CONFIG_DISCONTIGMEM_MANUAL is not set -# CONFIG_SPARSEMEM_MANUAL is not set -CONFIG_FLATMEM=y -CONFIG_FLAT_NODE_MEM_MAP=y -# CONFIG_SPARSEMEM_STATIC is not set -CONFIG_SPLIT_PTLOCK_CPUS=4 -# CONFIG_RESOURCES_64BIT is not set -# CONFIG_HZ_48 is not set -# CONFIG_HZ_100 is not set -# CONFIG_HZ_128 is not set -# CONFIG_HZ_250 is not set -# CONFIG_HZ_256 is not set -CONFIG_HZ_1000=y -# CONFIG_HZ_1024 is not set -CONFIG_SYS_SUPPORTS_ARBIT_HZ=y -CONFIG_HZ=1000 -CONFIG_PREEMPT_NONE=y -# CONFIG_PREEMPT_VOLUNTARY is not set -# CONFIG_PREEMPT is not set -CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" - -# -# Code maturity level options -# -CONFIG_EXPERIMENTAL=y -CONFIG_BROKEN_ON_SMP=y -CONFIG_INIT_ENV_ARG_LIMIT=32 - -# -# General setup -# -CONFIG_LOCALVERSION="" -CONFIG_LOCALVERSION_AUTO=y -CONFIG_SWAP=y -CONFIG_SYSVIPC=y -# CONFIG_POSIX_MQUEUE is not set -# CONFIG_BSD_PROCESS_ACCT is not set -CONFIG_SYSCTL=y -# CONFIG_AUDIT is not set -# CONFIG_IKCONFIG is not set -CONFIG_RELAY=y -CONFIG_INITRAMFS_SOURCE="" -# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set -CONFIG_EMBEDDED=y -CONFIG_KALLSYMS=y -# CONFIG_KALLSYMS_EXTRA_PASS is not set -# CONFIG_HOTPLUG is not set -CONFIG_PRINTK=y -CONFIG_BUG=y -CONFIG_ELF_CORE=y -CONFIG_BASE_FULL=y -CONFIG_RT_MUTEXES=y -CONFIG_FUTEX=y -CONFIG_EPOLL=y -CONFIG_SHMEM=y -CONFIG_SLAB=y -CONFIG_VM_EVENT_COUNTERS=y -# CONFIG_TINY_SHMEM is not set -CONFIG_BASE_SMALL=0 -# CONFIG_SLOB is not set - -# -# Loadable module support -# -CONFIG_MODULES=y -CONFIG_MODULE_UNLOAD=y -# CONFIG_MODULE_FORCE_UNLOAD is not set -CONFIG_MODVERSIONS=y -CONFIG_MODULE_SRCVERSION_ALL=y -# CONFIG_KMOD is not set - -# -# Block layer -# -# CONFIG_LBD is not set -# CONFIG_BLK_DEV_IO_TRACE is not set -# CONFIG_LSF is not set - -# -# IO Schedulers -# -CONFIG_IOSCHED_NOOP=y -CONFIG_IOSCHED_AS=y -CONFIG_IOSCHED_DEADLINE=y -CONFIG_IOSCHED_CFQ=y -CONFIG_DEFAULT_AS=y -# CONFIG_DEFAULT_DEADLINE is not set -# CONFIG_DEFAULT_CFQ is not set -# CONFIG_DEFAULT_NOOP is not set -CONFIG_DEFAULT_IOSCHED="anticipatory" - -# -# Bus options (PCI, PCMCIA, EISA, ISA, TC) -# -CONFIG_HW_HAS_PCI=y -# CONFIG_PCI is not set -CONFIG_MMU=y - -# -# PCCARD (PCMCIA/CardBus) support -# -# CONFIG_PCCARD is not set - -# -# PCI Hotplug Support -# - -# -# Executable file formats -# -CONFIG_BINFMT_ELF=y -# CONFIG_BINFMT_MISC is not set -CONFIG_TRAD_SIGNALS=y - -# -# Networking -# -CONFIG_NET=y - -# -# Networking options -# -# CONFIG_NETDEBUG is not set -# CONFIG_PACKET is not set -CONFIG_UNIX=y -CONFIG_XFRM=y -CONFIG_XFRM_USER=m -CONFIG_NET_KEY=y -CONFIG_INET=y -# CONFIG_IP_MULTICAST is not set -# CONFIG_IP_ADVANCED_ROUTER is not set -CONFIG_IP_FIB_HASH=y -CONFIG_IP_PNP=y -# CONFIG_IP_PNP_DHCP is not set -CONFIG_IP_PNP_BOOTP=y -# CONFIG_IP_PNP_RARP is not set -# CONFIG_NET_IPIP is not set -# CONFIG_NET_IPGRE is not set -# CONFIG_ARPD 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_XFRM_TUNNEL is not set -# CONFIG_INET_TUNNEL is not set -CONFIG_INET_XFRM_MODE_TRANSPORT=m -CONFIG_INET_XFRM_MODE_TUNNEL=m -CONFIG_INET_DIAG=y -CONFIG_INET_TCP_DIAG=y -# CONFIG_TCP_CONG_ADVANCED is not set -CONFIG_TCP_CONG_BIC=y -# CONFIG_IPV6 is not set -# CONFIG_INET6_XFRM_TUNNEL is not set -# CONFIG_INET6_TUNNEL is not set -CONFIG_NETWORK_SECMARK=y -# CONFIG_NETFILTER is not set - -# -# DCCP Configuration (EXPERIMENTAL) -# -# CONFIG_IP_DCCP is not set - -# -# SCTP Configuration (EXPERIMENTAL) -# -# CONFIG_IP_SCTP is not set - -# -# TIPC Configuration (EXPERIMENTAL) -# -# CONFIG_TIPC is not set -# CONFIG_ATM 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_X25 is not set -# CONFIG_LAPB is not set -# CONFIG_NET_DIVERT is not set -# CONFIG_ECONET is not set -# CONFIG_WAN_ROUTER is not set - -# -# QoS and/or fair queueing -# -# CONFIG_NET_SCHED 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 -CONFIG_IEEE80211=m -# CONFIG_IEEE80211_DEBUG is not set -CONFIG_IEEE80211_CRYPT_WEP=m -CONFIG_IEEE80211_CRYPT_CCMP=m -CONFIG_IEEE80211_SOFTMAC=m -# CONFIG_IEEE80211_SOFTMAC_DEBUG is not set -CONFIG_WIRELESS_EXT=y - -# -# Device Drivers -# - -# -# Generic Driver Options -# -CONFIG_STANDALONE=y -CONFIG_PREVENT_FIRMWARE_BUILD=y -# CONFIG_FW_LOADER is not set -# CONFIG_SYS_HYPERVISOR is not set - -# -# Connector - unified userspace <-> kernelspace linker -# -CONFIG_CONNECTOR=m - -# -# Memory Technology Devices (MTD) -# -# CONFIG_MTD is not set - -# -# Parallel port support -# -# CONFIG_PARPORT is not set - -# -# Plug and Play support -# - -# -# Block devices -# -# 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_RAM is not set -# CONFIG_BLK_DEV_INITRD is not set -CONFIG_CDROM_PKTCDVD=m -CONFIG_CDROM_PKTCDVD_BUFFERS=8 -# CONFIG_CDROM_PKTCDVD_WCACHE is not set -CONFIG_ATA_OVER_ETH=m - -# -# ATA/ATAPI/MFM/RLL support -# -# CONFIG_IDE is not set - -# -# SCSI device support -# -CONFIG_RAID_ATTRS=m -# 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_NETDEVICES=y -# CONFIG_DUMMY is not set -# CONFIG_BONDING is not set -# CONFIG_EQUALIZER is not set -# CONFIG_TUN is not set - -# -# PHY device support -# -CONFIG_PHYLIB=m - -# -# MII PHY device drivers -# -CONFIG_MARVELL_PHY=m -CONFIG_DAVICOM_PHY=m -CONFIG_QSEMI_PHY=m -CONFIG_LXT_PHY=m -CONFIG_CICADA_PHY=m -CONFIG_VITESSE_PHY=m -CONFIG_SMSC_PHY=m - -# -# Ethernet (10 or 100Mbit) -# -CONFIG_NET_ETHERNET=y -# CONFIG_MII is not set -CONFIG_MIPS_GT96100ETH=y -# CONFIG_DM9000 is not set - -# -# Ethernet (1000 Mbit) -# - -# -# Ethernet (10000 Mbit) -# - -# -# Token Ring devices -# - -# -# Wireless LAN (non-hamradio) -# -# CONFIG_NET_RADIO is not set - -# -# Wan interfaces -# -# CONFIG_WAN is not set -# CONFIG_PPP is not set -# CONFIG_SLIP is not set -# CONFIG_SHAPER is not set -# CONFIG_NETCONSOLE is not set -# CONFIG_NETPOLL is not set -# CONFIG_NET_POLL_CONTROLLER is not set - -# -# ISDN subsystem -# -# CONFIG_ISDN is not set - -# -# Telephony Support -# -# CONFIG_PHONE is not set - -# -# Input device support -# -CONFIG_INPUT=y - -# -# Userland interfaces -# -CONFIG_INPUT_MOUSEDEV=y -CONFIG_INPUT_MOUSEDEV_PSAUX=y -CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024 -CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768 -# 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=y -# CONFIG_SERIO_LIBPS2 is not set -CONFIG_SERIO_RAW=m -# CONFIG_GAMEPORT is not set - -# -# Character devices -# -CONFIG_VT=y -CONFIG_VT_CONSOLE=y -CONFIG_HW_CONSOLE=y -CONFIG_VT_HW_CONSOLE_BINDING=y -# CONFIG_SERIAL_NONSTANDARD is not set - -# -# Serial drivers -# -CONFIG_SERIAL_8250=y -CONFIG_SERIAL_8250_CONSOLE=y -CONFIG_SERIAL_8250_NR_UARTS=4 -CONFIG_SERIAL_8250_RUNTIME_UARTS=4 -# CONFIG_SERIAL_8250_EXTENDED is not set - -# -# Non-8250 serial port support -# -CONFIG_SERIAL_CORE=y -CONFIG_SERIAL_CORE_CONSOLE=y -CONFIG_UNIX98_PTYS=y -CONFIG_LEGACY_PTYS=y -CONFIG_LEGACY_PTY_COUNT=256 - -# -# IPMI -# -# CONFIG_IPMI_HANDLER is not set - -# -# Watchdog Cards -# -# CONFIG_WATCHDOG is not set -# CONFIG_HW_RANDOM 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 -# -# CONFIG_TCG_TPM is not set -# CONFIG_TELCLOCK is not set - -# -# I2C support -# -# CONFIG_I2C is not set - -# -# SPI support -# -# CONFIG_SPI is not set -# CONFIG_SPI_MASTER is not set - -# -# Dallas's 1-wire bus -# -# CONFIG_W1 is not set - -# -# Hardware Monitoring support -# -# CONFIG_HWMON is not set -# CONFIG_HWMON_VID is not set - -# -# Misc devices -# - -# -# Multimedia devices -# -# CONFIG_VIDEO_DEV is not set -CONFIG_VIDEO_V4L2=y - -# -# Digital Video Broadcasting Devices -# -# CONFIG_DVB is not set - -# -# Graphics support -# -# CONFIG_FIRMWARE_EDID is not set -# CONFIG_FB is not set - -# -# Console display driver support -# -# CONFIG_VGA_CONSOLE is not set -CONFIG_DUMMY_CONSOLE=y - -# -# Sound -# -# CONFIG_SOUND is not set - -# -# USB support -# -# CONFIG_USB_ARCH_HAS_HCD is not set -# CONFIG_USB_ARCH_HAS_OHCI is not set -# CONFIG_USB_ARCH_HAS_EHCI is not set - -# -# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support' -# - -# -# USB Gadget Support -# -# CONFIG_USB_GADGET is not set - -# -# MMC/SD Card support -# -# CONFIG_MMC is not set - -# -# LED devices -# -# CONFIG_NEW_LEDS is not set - -# -# LED drivers -# - -# -# LED Triggers -# - -# -# InfiniBand support -# - -# -# EDAC - error detection and reporting (RAS) (EXPERIMENTAL) -# - -# -# Real Time Clock -# -# CONFIG_RTC_CLASS is not set - -# -# DMA Engine support -# -# CONFIG_DMA_ENGINE is not set - -# -# DMA Clients -# - -# -# DMA Devices -# - -# -# File systems -# -CONFIG_EXT2_FS=y -# CONFIG_EXT2_FS_XATTR is not set -# CONFIG_EXT2_FS_XIP is not set -# CONFIG_EXT3_FS is not set -# CONFIG_REISERFS_FS is not set -# CONFIG_JFS_FS is not set -# CONFIG_FS_POSIX_ACL is not set -# CONFIG_XFS_FS is not set -# CONFIG_OCFS2_FS is not set -# CONFIG_MINIX_FS is not set -# CONFIG_ROMFS_FS is not set -CONFIG_INOTIFY=y -CONFIG_INOTIFY_USER=y -# CONFIG_QUOTA is not set -CONFIG_DNOTIFY=y -# CONFIG_AUTOFS_FS is not set -# CONFIG_AUTOFS4_FS is not set -CONFIG_FUSE_FS=m - -# -# 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_PROC_KCORE=y -CONFIG_SYSFS=y -# CONFIG_TMPFS is not set -# CONFIG_HUGETLB_PAGE is not set -CONFIG_RAMFS=y -# CONFIG_CONFIGFS_FS is not set - -# -# Miscellaneous filesystems -# -# CONFIG_ADFS_FS is not set -# CONFIG_AFFS_FS is not set -# CONFIG_HFS_FS is not set -# CONFIG_HFSPLUS_FS is not set -# CONFIG_BEFS_FS is not set -# CONFIG_BFS_FS is not set -# CONFIG_EFS_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 is not set -# CONFIG_NFS_V4 is not set -# CONFIG_NFS_DIRECTIO is not set -# CONFIG_NFSD is not set -CONFIG_ROOT_NFS=y -CONFIG_LOCKD=y -CONFIG_NFS_COMMON=y -CONFIG_SUNRPC=y -# CONFIG_RPCSEC_GSS_KRB5 is not set -# CONFIG_RPCSEC_GSS_SPKM3 is not set -# CONFIG_SMB_FS is not set -# CONFIG_CIFS is not set -# CONFIG_CIFS_DEBUG2 is not set -# CONFIG_NCP_FS is not set -# CONFIG_CODA_FS is not set -# CONFIG_AFS_FS is not set -# CONFIG_9P_FS is not set - -# -# Partition Types -# -# CONFIG_PARTITION_ADVANCED is not set -CONFIG_MSDOS_PARTITION=y - -# -# Native Language Support -# -# CONFIG_NLS is not set - -# -# Profiling support -# -# CONFIG_PROFILING is not set - -# -# Kernel hacking -# -# CONFIG_PRINTK_TIME is not set -# CONFIG_MAGIC_SYSRQ is not set -# CONFIG_UNUSED_SYMBOLS is not set -# CONFIG_DEBUG_KERNEL is not set -CONFIG_LOG_BUF_SHIFT=14 -# CONFIG_DEBUG_FS is not set -CONFIG_CROSSCOMPILE=y -CONFIG_CMDLINE="" - -# -# Security options -# -CONFIG_KEYS=y -CONFIG_KEYS_DEBUG_PROC_KEYS=y -# CONFIG_SECURITY is not set - -# -# Cryptographic options -# -CONFIG_CRYPTO=y -CONFIG_CRYPTO_HMAC=y -CONFIG_CRYPTO_NULL=m -CONFIG_CRYPTO_MD4=m -CONFIG_CRYPTO_MD5=m -CONFIG_CRYPTO_SHA1=m -CONFIG_CRYPTO_SHA256=m -CONFIG_CRYPTO_SHA512=m -CONFIG_CRYPTO_WP512=m -CONFIG_CRYPTO_TGR192=m -CONFIG_CRYPTO_DES=m -CONFIG_CRYPTO_BLOWFISH=m -CONFIG_CRYPTO_TWOFISH=m -CONFIG_CRYPTO_SERPENT=m -CONFIG_CRYPTO_AES=m -CONFIG_CRYPTO_CAST5=m -CONFIG_CRYPTO_CAST6=m -CONFIG_CRYPTO_TEA=m -CONFIG_CRYPTO_ARC4=m -CONFIG_CRYPTO_KHAZAD=m -CONFIG_CRYPTO_ANUBIS=m -CONFIG_CRYPTO_DEFLATE=m -CONFIG_CRYPTO_MICHAEL_MIC=m -CONFIG_CRYPTO_CRC32C=m -# CONFIG_CRYPTO_TEST is not set - -# -# Hardware crypto devices -# - -# -# Library routines -# -# CONFIG_CRC_CCITT is not set -CONFIG_CRC16=m -CONFIG_CRC32=m -CONFIG_LIBCRC32C=m -CONFIG_ZLIB_INFLATE=m -CONFIG_ZLIB_DEFLATE=m -CONFIG_PLIST=y diff --git a/arch/mips/configs/excite_defconfig b/arch/mips/configs/excite_defconfig index 045ebd089893..eb87cbbfd037 100644 --- a/arch/mips/configs/excite_defconfig +++ b/arch/mips/configs/excite_defconfig @@ -26,7 +26,6 @@ CONFIG_BASLER_EXCITE=y # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set diff --git a/arch/mips/configs/ip22_defconfig b/arch/mips/configs/ip22_defconfig index ef16d1fb5071..9f22d13e729d 100644 --- a/arch/mips/configs/ip22_defconfig +++ b/arch/mips/configs/ip22_defconfig @@ -25,7 +25,6 @@ CONFIG_MIPS=y # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set diff --git a/arch/mips/configs/ip27_defconfig b/arch/mips/configs/ip27_defconfig index 4bf1ee7f5f00..414a649dff8a 100644 --- a/arch/mips/configs/ip27_defconfig +++ b/arch/mips/configs/ip27_defconfig @@ -25,7 +25,6 @@ CONFIG_MIPS=y # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set diff --git a/arch/mips/configs/ip32_defconfig b/arch/mips/configs/ip32_defconfig index f83dc09c3ca9..dec2ba6ba03f 100644 --- a/arch/mips/configs/ip32_defconfig +++ b/arch/mips/configs/ip32_defconfig @@ -25,7 +25,6 @@ CONFIG_MIPS=y # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set diff --git a/arch/mips/configs/it8172_defconfig b/arch/mips/configs/it8172_defconfig index a91d72a9ca86..37f9dd7187b1 100644 --- a/arch/mips/configs/it8172_defconfig +++ b/arch/mips/configs/it8172_defconfig @@ -25,7 +25,6 @@ CONFIG_MIPS=y # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set CONFIG_MIPS_ITE8172=y # CONFIG_MACH_JAZZ is not set diff --git a/arch/mips/configs/ivr_defconfig b/arch/mips/configs/ivr_defconfig index cebc67212d06..18874a4c24fe 100644 --- a/arch/mips/configs/ivr_defconfig +++ b/arch/mips/configs/ivr_defconfig @@ -25,7 +25,6 @@ CONFIG_MIPS=y # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set CONFIG_MIPS_IVR=y # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set diff --git a/arch/mips/configs/jaguar-atx_defconfig b/arch/mips/configs/jaguar-atx_defconfig index 5d9eb11aba3d..9b529857f802 100644 --- a/arch/mips/configs/jaguar-atx_defconfig +++ b/arch/mips/configs/jaguar-atx_defconfig @@ -25,7 +25,6 @@ CONFIG_MIPS=y # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set diff --git a/arch/mips/configs/jmr3927_defconfig b/arch/mips/configs/jmr3927_defconfig index be45a9044d06..fded3f73815f 100644 --- a/arch/mips/configs/jmr3927_defconfig +++ b/arch/mips/configs/jmr3927_defconfig @@ -25,7 +25,6 @@ CONFIG_MIPS=y # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set diff --git a/arch/mips/configs/lasat200_defconfig b/arch/mips/configs/lasat200_defconfig index 64dc9f45a19c..0354bfa18b39 100644 --- a/arch/mips/configs/lasat200_defconfig +++ b/arch/mips/configs/lasat200_defconfig @@ -25,7 +25,6 @@ CONFIG_MIPS=y # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set diff --git a/arch/mips/configs/malta_defconfig b/arch/mips/configs/malta_defconfig index 2690baf15a85..b21ca470273a 100644 --- a/arch/mips/configs/malta_defconfig +++ b/arch/mips/configs/malta_defconfig @@ -25,7 +25,6 @@ CONFIG_MIPS=y # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set diff --git a/arch/mips/configs/mipssim_defconfig b/arch/mips/configs/mipssim_defconfig index c298979c18ae..adbeeadddb8f 100644 --- a/arch/mips/configs/mipssim_defconfig +++ b/arch/mips/configs/mipssim_defconfig @@ -25,7 +25,6 @@ CONFIG_MIPS=y # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set diff --git a/arch/mips/configs/mpc30x_defconfig b/arch/mips/configs/mpc30x_defconfig index 4405d127a941..79fd544fcb2a 100644 --- a/arch/mips/configs/mpc30x_defconfig +++ b/arch/mips/configs/mpc30x_defconfig @@ -25,7 +25,6 @@ CONFIG_MIPS=y # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set diff --git a/arch/mips/configs/ocelot_3_defconfig b/arch/mips/configs/ocelot_3_defconfig index ec5758f22676..4d87da2b99fd 100644 --- a/arch/mips/configs/ocelot_3_defconfig +++ b/arch/mips/configs/ocelot_3_defconfig @@ -25,7 +25,6 @@ CONFIG_MIPS=y # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set diff --git a/arch/mips/configs/ocelot_c_defconfig b/arch/mips/configs/ocelot_c_defconfig index 0d33d87de1a1..ce7c26475328 100644 --- a/arch/mips/configs/ocelot_c_defconfig +++ b/arch/mips/configs/ocelot_c_defconfig @@ -25,7 +25,6 @@ CONFIG_MIPS=y # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set diff --git a/arch/mips/configs/ocelot_defconfig b/arch/mips/configs/ocelot_defconfig index 4b999102715e..3da2a43d1608 100644 --- a/arch/mips/configs/ocelot_defconfig +++ b/arch/mips/configs/ocelot_defconfig @@ -25,7 +25,6 @@ CONFIG_MIPS=y # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set diff --git a/arch/mips/configs/ocelot_g_defconfig b/arch/mips/configs/ocelot_g_defconfig index 827b344f6010..3a3e5ff4a3ef 100644 --- a/arch/mips/configs/ocelot_g_defconfig +++ b/arch/mips/configs/ocelot_g_defconfig @@ -25,7 +25,6 @@ CONFIG_MIPS=y # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set diff --git a/arch/mips/configs/pb1100_defconfig b/arch/mips/configs/pb1100_defconfig index 9ed60fef69e0..1a16e92900cb 100644 --- a/arch/mips/configs/pb1100_defconfig +++ b/arch/mips/configs/pb1100_defconfig @@ -25,7 +25,6 @@ CONFIG_MIPS_PB1100=y # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set diff --git a/arch/mips/configs/pb1500_defconfig b/arch/mips/configs/pb1500_defconfig index 6774254b1be6..9ea8edea6f29 100644 --- a/arch/mips/configs/pb1500_defconfig +++ b/arch/mips/configs/pb1500_defconfig @@ -25,7 +25,6 @@ CONFIG_MIPS_PB1500=y # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set diff --git a/arch/mips/configs/pb1550_defconfig b/arch/mips/configs/pb1550_defconfig index 1afe5bf6e765..c4a158976f8f 100644 --- a/arch/mips/configs/pb1550_defconfig +++ b/arch/mips/configs/pb1550_defconfig @@ -25,7 +25,6 @@ CONFIG_MIPS_PB1550=y # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set diff --git a/arch/mips/configs/pnx8550-jbs_defconfig b/arch/mips/configs/pnx8550-jbs_defconfig index ac616c82d348..1cbf270c301c 100644 --- a/arch/mips/configs/pnx8550-jbs_defconfig +++ b/arch/mips/configs/pnx8550-jbs_defconfig @@ -25,7 +25,6 @@ CONFIG_MIPS=y # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set diff --git a/arch/mips/configs/pnx8550-v2pci_defconfig b/arch/mips/configs/pnx8550-v2pci_defconfig index a8eb51bae3f3..bec30b15b9bd 100644 --- a/arch/mips/configs/pnx8550-v2pci_defconfig +++ b/arch/mips/configs/pnx8550-v2pci_defconfig @@ -25,7 +25,6 @@ CONFIG_MIPS=y # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set diff --git a/arch/mips/configs/qemu_defconfig b/arch/mips/configs/qemu_defconfig index 6a63a113b7ea..daa40c8ff694 100644 --- a/arch/mips/configs/qemu_defconfig +++ b/arch/mips/configs/qemu_defconfig @@ -25,7 +25,6 @@ CONFIG_MIPS=y # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set diff --git a/arch/mips/configs/rbhma4500_defconfig b/arch/mips/configs/rbhma4500_defconfig index 6779f449bd2d..2f5650227ba3 100644 --- a/arch/mips/configs/rbhma4500_defconfig +++ b/arch/mips/configs/rbhma4500_defconfig @@ -25,7 +25,6 @@ CONFIG_MIPS=y # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set diff --git a/arch/mips/configs/rm200_defconfig b/arch/mips/configs/rm200_defconfig index b7826d3a2b77..f26b338333ac 100644 --- a/arch/mips/configs/rm200_defconfig +++ b/arch/mips/configs/rm200_defconfig @@ -25,7 +25,6 @@ CONFIG_MIPS=y # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set diff --git a/arch/mips/configs/sb1250-swarm_defconfig b/arch/mips/configs/sb1250-swarm_defconfig index 625c1c619b6b..9041f095f96f 100644 --- a/arch/mips/configs/sb1250-swarm_defconfig +++ b/arch/mips/configs/sb1250-swarm_defconfig @@ -25,7 +25,6 @@ CONFIG_MIPS=y # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set diff --git a/arch/mips/configs/sead_defconfig b/arch/mips/configs/sead_defconfig index 4401b602118f..02abb2f1bfaf 100644 --- a/arch/mips/configs/sead_defconfig +++ b/arch/mips/configs/sead_defconfig @@ -25,7 +25,6 @@ CONFIG_MIPS=y # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set diff --git a/arch/mips/configs/tb0226_defconfig b/arch/mips/configs/tb0226_defconfig index 2ba4e25e8c34..ca3d0c4ba15b 100644 --- a/arch/mips/configs/tb0226_defconfig +++ b/arch/mips/configs/tb0226_defconfig @@ -25,7 +25,6 @@ CONFIG_MIPS=y # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set diff --git a/arch/mips/configs/tb0229_defconfig b/arch/mips/configs/tb0229_defconfig index fc8a407c1add..4e2009ace278 100644 --- a/arch/mips/configs/tb0229_defconfig +++ b/arch/mips/configs/tb0229_defconfig @@ -25,7 +25,6 @@ CONFIG_MIPS=y # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set diff --git a/arch/mips/configs/tb0287_defconfig b/arch/mips/configs/tb0287_defconfig index effcb63b81a3..535a813d01a9 100644 --- a/arch/mips/configs/tb0287_defconfig +++ b/arch/mips/configs/tb0287_defconfig @@ -25,7 +25,6 @@ CONFIG_MIPS=y # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set diff --git a/arch/mips/configs/workpad_defconfig b/arch/mips/configs/workpad_defconfig index 8f66ad71cb7e..3a3ef20b21cc 100644 --- a/arch/mips/configs/workpad_defconfig +++ b/arch/mips/configs/workpad_defconfig @@ -25,7 +25,6 @@ CONFIG_MIPS=y # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set diff --git a/arch/mips/configs/wrppmc_defconfig b/arch/mips/configs/wrppmc_defconfig index 3e4b16b39827..e6b1dea55842 100644 --- a/arch/mips/configs/wrppmc_defconfig +++ b/arch/mips/configs/wrppmc_defconfig @@ -25,7 +25,6 @@ CONFIG_MIPS=y # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set diff --git a/arch/mips/configs/yosemite_defconfig b/arch/mips/configs/yosemite_defconfig index 3a68d8a25b66..06a072b77b1c 100644 --- a/arch/mips/configs/yosemite_defconfig +++ b/arch/mips/configs/yosemite_defconfig @@ -25,7 +25,6 @@ CONFIG_MIPS=y # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set diff --git a/arch/mips/defconfig b/arch/mips/defconfig index fff6fcc96212..d620c463a78b 100644 --- a/arch/mips/defconfig +++ b/arch/mips/defconfig @@ -25,7 +25,6 @@ CONFIG_MIPS=y # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set diff --git a/arch/mips/galileo-boards/ev96100/Makefile b/arch/mips/galileo-boards/ev96100/Makefile deleted file mode 100644 index cd868ec78cbc..000000000000 --- a/arch/mips/galileo-boards/ev96100/Makefile +++ /dev/null @@ -1,9 +0,0 @@ -# -# Copyright 2000 MontaVista Software Inc. -# Author: MontaVista Software, Inc. -# ppopov@mvista.com or source@mvista.com -# -# Makefile for the Galileo EV96100 board. -# - -obj-y += init.o irq.o puts.o reset.o time.o setup.o diff --git a/arch/mips/galileo-boards/ev96100/init.c b/arch/mips/galileo-boards/ev96100/init.c deleted file mode 100644 index a01fe9b36f2c..000000000000 --- a/arch/mips/galileo-boards/ev96100/init.c +++ /dev/null @@ -1,173 +0,0 @@ -/* - * Copyright 2000 MontaVista Software Inc. - * Author: MontaVista Software, Inc. - * ppopov@mvista.com or source@mvista.com - * - * This file was derived from Carsten Langgaard's - * arch/mips/mips-boards/generic/generic.c - * - * Carsten Langgaard, carstenl@mips.com - * Copyright (C) 1999,2000 MIPS Technologies, 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 SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN - * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF - * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON - * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF - * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * 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 -#include -#include - -#include -#include -#include - - -/* Environment variable */ - -typedef struct { - char *name; - char *val; -} t_env_var; - -int prom_argc; -char **prom_argv, **prom_envp; - -int init_debug = 0; - -char * __init prom_getcmdline(void) -{ - return &(arcs_cmdline[0]); -} - -unsigned long __init prom_free_prom_memory(void) -{ - return 0; -} - -void __init prom_init_cmdline(void) -{ - char *cp; - int actr; - - actr = 1; /* Always ignore argv[0] */ - - cp = &(arcs_cmdline[0]); - while(actr < prom_argc) { - strcpy(cp, prom_argv[actr]); - cp += strlen(prom_argv[actr]); - *cp++ = ' '; - actr++; - } - if (cp != &(arcs_cmdline[0])) /* get rid of trailing space */ - --cp; - *cp = '\0'; -} - -char *prom_getenv(char *envname) -{ - /* - * Return a pointer to the given environment variable. - */ - - t_env_var *env = (t_env_var *) prom_envp; - int i; - - i = strlen(envname); - - while (env->name) { - if (strncmp(envname, env->name, i) == 0) { - return (env->val); - } - env++; - } - return (NULL); -} - -static inline unsigned char str2hexnum(unsigned char c) -{ - if (c >= '0' && c <= '9') - return c - '0'; - if (c >= 'a' && c <= 'f') - return c - 'a' + 10; - return 0; /* foo */ -} - -static inline void str2eaddr(unsigned char *ea, unsigned char *str) -{ - int i; - - for (i = 0; i < 6; i++) { - unsigned char num; - - if ((*str == '.') || (*str == ':')) - str++; - num = str2hexnum(*str++) << 4; - num |= (str2hexnum(*str++)); - ea[i] = num; - } -} - -int get_ethernet_addr(char *ethernet_addr) -{ - char *ethaddr_str; - - ethaddr_str = prom_getenv("ethaddr"); - if (!ethaddr_str) { - printk("ethaddr not set in boot prom\n"); - return -1; - } - str2eaddr(ethernet_addr, ethaddr_str); - - if (init_debug > 1) { - int i; - printk("get_ethernet_addr: "); - for (i = 0; i < 5; i++) - printk("%02x:", - (unsigned char) *(ethernet_addr + i)); - printk("%02x\n", *(ethernet_addr + i)); - } - - return 0; -} - -const char *get_system_type(void) -{ - return "Galileo EV96100"; -} - -void __init prom_init(void) -{ - volatile unsigned char *uart; - char ppbuf[8]; - - prom_argc = fw_arg0; - prom_argv = (char **) fw_arg1; - prom_envp = (char **) fw_arg2; - - mips_machgroup = MACH_GROUP_GALILEO; - mips_machtype = MACH_EV96100; - - prom_init_cmdline(); - - /* 32 MB upgradable */ - add_memory_region(0, 32 << 20, BOOT_MEM_RAM); -} diff --git a/arch/mips/galileo-boards/ev96100/irq.c b/arch/mips/galileo-boards/ev96100/irq.c deleted file mode 100644 index ee5d6720f23b..000000000000 --- a/arch/mips/galileo-boards/ev96100/irq.c +++ /dev/null @@ -1,77 +0,0 @@ -/* - * Copyright 2000 MontaVista Software Inc. - * Author: MontaVista Software, Inc. - * ppopov@mvista.com or source@mvista.com - * - * This file was derived from Carsten Langgaard's - * arch/mips/mips-boards/atlas/atlas_int.c. - * - * Carsten Langgaard, carstenl@mips.com - * Copyright (C) 1999,2000 MIPS Technologies, 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 SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN - * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF - * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON - * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF - * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * 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 -#include -#include -#include -#include -#include -#include - -static inline unsigned int ffz8(unsigned int word) -{ - unsigned long k; - - k = 7; - if (word & 0x0fUL) { k -= 4; word <<= 4; } - if (word & 0x30UL) { k -= 2; word <<= 2; } - if (word & 0x40UL) { k -= 1; } - - return k; -} - -extern void mips_timer_interrupt(struct pt_regs *regs); - -asmlinkage void ev96100_cpu_irq(unsigned int pending, struct pt_regs *regs) -{ - do_IRQ(ffz8(pending >> 8), regs); -} - -asmlinkage void plat_irq_dispatch(struct pt_regs *regs) -{ - unsigned int pending = read_c0_cause() & read_c0_status() & ST0_IM; - - if (pending & CAUSEF_IP7) - mips_timer_interrupt(regs); - else if (pending) - ev96100_cpu_irq(pending, regs); - else - spurious_interrupt(regs); -} - -void __init arch_init_irq(void) -{ - mips_cpu_irq_init(0); -} diff --git a/arch/mips/galileo-boards/ev96100/puts.c b/arch/mips/galileo-boards/ev96100/puts.c deleted file mode 100644 index 49dc6d137b9c..000000000000 --- a/arch/mips/galileo-boards/ev96100/puts.c +++ /dev/null @@ -1,138 +0,0 @@ - -/* - * Debug routines which directly access the uart. - */ - -#include -#include - - -//#define SERIAL_BASE EV96100_UART0_REGS_BASE -#define SERIAL_BASE 0xBD000020 -#define NS16550_BASE SERIAL_BASE - -#define SERA_CMD 0x0D -#define SERA_DATA 0x08 -//#define SERB_CMD 0x05 -#define SERB_CMD 20 -#define SERB_DATA 0x00 -#define TX_BUSY 0x20 - -#define TIMEOUT 0xffff -#undef SLOW_DOWN - -static const char digits[16] = "0123456789abcdef"; -static volatile unsigned char *const com1 = (unsigned char *) SERIAL_BASE; - - -#ifdef SLOW_DOWN -static inline void slow_down() -{ - int k; - for (k = 0; k < 10000; k++); -} -#else -#define slow_down() -#endif - -void putch(const unsigned char c) -{ - unsigned char ch; - int i = 0; - - do { - ch = com1[SERB_CMD]; - slow_down(); - i++; - if (i > TIMEOUT) { - break; - } - } while (0 == (ch & TX_BUSY)); - com1[SERB_DATA] = c; -} - -void putchar(const unsigned char c) -{ - unsigned char ch; - int i = 0; - - do { - ch = com1[SERB_CMD]; - slow_down(); - i++; - if (i > TIMEOUT) { - break; - } - } while (0 == (ch & TX_BUSY)); - com1[SERB_DATA] = c; -} - -void puts(unsigned char *cp) -{ - unsigned char ch; - int i = 0; - - while (*cp) { - do { - ch = com1[SERB_CMD]; - slow_down(); - i++; - if (i > TIMEOUT) { - break; - } - } while (0 == (ch & TX_BUSY)); - com1[SERB_DATA] = *cp++; - } - putch('\r'); - putch('\n'); -} - -void fputs(unsigned char *cp) -{ - unsigned char ch; - int i = 0; - - while (*cp) { - - do { - ch = com1[SERB_CMD]; - slow_down(); - i++; - if (i > TIMEOUT) { - break; - } - } while (0 == (ch & TX_BUSY)); - com1[SERB_DATA] = *cp++; - } -} - - -void put64(uint64_t ul) -{ - int cnt; - unsigned ch; - - cnt = 16; /* 16 nibbles in a 64 bit long */ - putch('0'); - putch('x'); - do { - cnt--; - ch = (unsigned char) (ul >> cnt * 4) & 0x0F; - putch(digits[ch]); - } while (cnt > 0); -} - -void put32(unsigned u) -{ - int cnt; - unsigned ch; - - cnt = 8; /* 8 nibbles in a 32 bit long */ - putch('0'); - putch('x'); - do { - cnt--; - ch = (unsigned char) (u >> cnt * 4) & 0x0F; - putch(digits[ch]); - } while (cnt > 0); -} diff --git a/arch/mips/galileo-boards/ev96100/reset.c b/arch/mips/galileo-boards/ev96100/reset.c deleted file mode 100644 index 5ef9b7f896e6..000000000000 --- a/arch/mips/galileo-boards/ev96100/reset.c +++ /dev/null @@ -1,70 +0,0 @@ -/* - * BRIEF MODULE DESCRIPTION - * Galileo EV96100 reset routines. - * - * Copyright 2000 MontaVista Software Inc. - * Author: MontaVista Software, Inc. - * ppopov@mvista.com or source@mvista.com - * - * This file was derived from Carsten Langgaard's - * arch/mips/mips-boards/generic/reset.c - * - * Carsten Langgaard, carstenl@mips.com - * Copyright (C) 1999,2000 MIPS Technologies, 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 SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN - * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF - * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON - * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF - * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * 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 -#include -#include -#include -#include - -static void mips_machine_restart(char *command); -static void mips_machine_halt(void); - -static void mips_machine_restart(char *command) -{ - set_c0_status(ST0_BEV | ST0_ERL); - change_c0_config(CONF_CM_CMASK, CONF_CM_UNCACHED); - flush_cache_all(); - write_c0_wired(0); - __asm__ __volatile__("jr\t%0"::"r"(0xbfc00000)); - while (1); -} - -static void mips_machine_halt(void) -{ - printk(KERN_NOTICE "You can safely turn off the power\n"); - while (1) - __asm__(".set\tmips3\n\t" - "wait\n\t" - ".set\tmips0"); -} - -void mips_reboot_setup(void) -{ - _machine_restart = mips_machine_restart; - _machine_halt = mips_machine_halt; -} diff --git a/arch/mips/galileo-boards/ev96100/setup.c b/arch/mips/galileo-boards/ev96100/setup.c deleted file mode 100644 index 639ad5562c63..000000000000 --- a/arch/mips/galileo-boards/ev96100/setup.c +++ /dev/null @@ -1,159 +0,0 @@ -/* - * BRIEF MODULE DESCRIPTION - * Galileo EV96100 setup. - * - * Copyright 2000 MontaVista Software Inc. - * Author: MontaVista Software, Inc. - * ppopov@mvista.com or source@mvista.com - * - * This file was derived from Carsten Langgaard's - * arch/mips/mips-boards/atlas/atlas_setup.c. - * - * Carsten Langgaard, carstenl@mips.com - * Copyright (C) 1999,2000 MIPS Technologies, 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 SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN - * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF - * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON - * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF - * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * 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 -#include -#include - -#include -#include -#include -#include -#include -#include -#include - - -extern char *__init prom_getcmdline(void); - -extern void mips_reboot_setup(void); - -unsigned char mac_0_1[12]; - -void __init plat_mem_setup(void) -{ - unsigned int config = read_c0_config(); - unsigned int status = read_c0_status(); - unsigned int info = read_c0_info(); - u32 tmp; - - char *argptr; - - clear_c0_status(ST0_FR); - - if (config & 0x8) - printk("Secondary cache is enabled\n"); - else - printk("Secondary cache is disabled\n"); - - if (status & (1 << 27)) - printk("User-mode cache ops enabled\n"); - else - printk("User-mode cache ops disabled\n"); - - printk("CP0 info reg: %x\n", (unsigned) info); - if (info & (1 << 28)) - printk("burst mode Scache RAMS\n"); - else - printk("pipelined Scache RAMS\n"); - - if (info & 0x1) - printk("Atomic Enable is set\n"); - - argptr = prom_getcmdline(); -#ifdef CONFIG_SERIAL_CONSOLE - if (strstr(argptr, "console=") == NULL) { - argptr = prom_getcmdline(); - strcat(argptr, " console=ttyS0,115200"); - } -#endif - - mips_reboot_setup(); - - set_io_port_base(KSEG1); - ioport_resource.start = GT_PCI_IO_BASE; - ioport_resource.end = GT_PCI_IO_BASE + 0x01ffffff; - -#ifdef CONFIG_BLK_DEV_INITRD - ROOT_DEV = MKDEV(RAMDISK_MAJOR, 0); -#endif - - - /* - * Setup GT controller master bit so we can do config cycles - */ - - /* Clear cause register bits */ - GT_WRITE(GT_INTRCAUSE_OFS, ~(GT_INTRCAUSE_MASABORT0_BIT | - GT_INTRCAUSE_TARABORT0_BIT)); - /* Setup address */ - GT_WRITE(GT_PCI0_CFGADDR_OFS, - (0 << GT_PCI0_CFGADDR_BUSNUM_SHF) | - (0 << GT_PCI0_CFGADDR_FUNCTNUM_SHF) | - ((PCI_COMMAND / 4) << GT_PCI0_CFGADDR_REGNUM_SHF) | - GT_PCI0_CFGADDR_CONFIGEN_BIT); - - udelay(2); - tmp = GT_READ(GT_PCI0_CFGDATA_OFS); - - tmp |= (PCI_COMMAND_IO | PCI_COMMAND_MEMORY | - PCI_COMMAND_MASTER | PCI_COMMAND_SERR); - GT_WRITE(GT_PCI0_CFGADDR_OFS, - (0 << GT_PCI0_CFGADDR_BUSNUM_SHF) | - (0 << GT_PCI0_CFGADDR_FUNCTNUM_SHF) | - ((PCI_COMMAND / 4) << GT_PCI0_CFGADDR_REGNUM_SHF) | - GT_PCI0_CFGADDR_CONFIGEN_BIT); - udelay(2); - GT_WRITE(GT_PCI0_CFGDATA_OFS, tmp); - - /* Setup address */ - GT_WRITE(GT_PCI0_CFGADDR_OFS, - (0 << GT_PCI0_CFGADDR_BUSNUM_SHF) | - (0 << GT_PCI0_CFGADDR_FUNCTNUM_SHF) | - ((PCI_COMMAND / 4) << GT_PCI0_CFGADDR_REGNUM_SHF) | - GT_PCI0_CFGADDR_CONFIGEN_BIT); - - udelay(2); - tmp = GT_READ(GT_PCI0_CFGDATA_OFS); -} - -unsigned short get_gt_devid(void) -{ - u32 gt_devid; - - /* Figure out if this is a gt96100 or gt96100A */ - GT_WRITE(GT_PCI0_CFGADDR_OFS, - (0 << GT_PCI0_CFGADDR_BUSNUM_SHF) | - (0 << GT_PCI0_CFGADDR_FUNCTNUM_SHF) | - ((PCI_VENDOR_ID / 4) << GT_PCI0_CFGADDR_REGNUM_SHF) | - GT_PCI0_CFGADDR_CONFIGEN_BIT); - - udelay(4); - gt_devid = GT_READ(GT_PCI0_CFGDATA_OFS); - - return gt_devid >> 16; -} diff --git a/arch/mips/galileo-boards/ev96100/time.c b/arch/mips/galileo-boards/ev96100/time.c deleted file mode 100644 index 8cbe8426491a..000000000000 --- a/arch/mips/galileo-boards/ev96100/time.c +++ /dev/null @@ -1,88 +0,0 @@ -/* - * BRIEF MODULE DESCRIPTION - * Galileo EV96100 rtc routines. - * - * Copyright 2000 MontaVista Software Inc. - * Author: MontaVista Software, Inc. - * ppopov@mvista.com or source@mvista.com - * - * This file was derived from Carsten Langgaard's - * arch/mips/mips-boards/atlas/atlas_rtc.c. - * - * Carsten Langgaard, carstenl@mips.com - * Copyright (C) 1999,2000 MIPS Technologies, 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 SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN - * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF - * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON - * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF - * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * 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 -#include -#include - -#include -#include -#include - - -#define ALLINTS (IE_IRQ0 | IE_IRQ1 | IE_IRQ2 | IE_IRQ3 | IE_IRQ4 | IE_IRQ5) - -extern volatile unsigned long wall_jiffies; -unsigned long missed_heart_beats = 0; - -static unsigned long r4k_offset; /* Amount to increment compare reg each time */ -static unsigned long r4k_cur; /* What counter should be at next timer irq */ - -static inline void ack_r4ktimer(unsigned long newval) -{ - write_c0_compare(newval); -} - -/* - * There are a lot of conceptually broken versions of the MIPS timer interrupt - * handler floating around. This one is rather different, but the algorithm - * is probably more robust. - */ -void mips_timer_interrupt(struct pt_regs *regs) -{ - int irq = 7; /* FIX ME */ - - if (r4k_offset == 0) { - goto null; - } - - do { - kstat_this_cpu.irqs[irq]++; - do_timer(regs); -#ifndef CONFIG_SMP - update_process_times(user_mode(regs)); -#endif - r4k_cur += r4k_offset; - ack_r4ktimer(r4k_cur); - - } while (((unsigned long)read_c0_count() - - r4k_cur) < 0x7fffffff); - return; - -null: - ack_r4ktimer(0); -} diff --git a/arch/mips/pci/Makefile b/arch/mips/pci/Makefile index 368d3d896165..edefa97b2330 100644 --- a/arch/mips/pci/Makefile +++ b/arch/mips/pci/Makefile @@ -11,7 +11,6 @@ obj-$(CONFIG_ITE_BOARD_GEN) += ops-it8172.o obj-$(CONFIG_MIPS_BONITO64) += ops-bonito64.o obj-$(CONFIG_MIPS_GT64111) += ops-gt64111.o obj-$(CONFIG_MIPS_GT64120) += ops-gt64120.o -obj-$(CONFIG_MIPS_GT96100) += ops-gt96100.o obj-$(CONFIG_PCI_MARVELL) += ops-marvell.o obj-$(CONFIG_MIPS_MSC) += ops-msc.o obj-$(CONFIG_MIPS_NILE4) += ops-nile4.o @@ -29,7 +28,6 @@ obj-$(CONFIG_LASAT) += pci-lasat.o obj-$(CONFIG_MIPS_ATLAS) += fixup-atlas.o obj-$(CONFIG_MIPS_COBALT) += fixup-cobalt.o obj-$(CONFIG_MIPS_EV64120) += fixup-ev64120.o -obj-$(CONFIG_MIPS_EV96100) += fixup-ev96100.o pci-ev96100.o obj-$(CONFIG_MIPS_ITE8172) += fixup-ite8172g.o obj-$(CONFIG_MIPS_IVR) += fixup-ivr.o obj-$(CONFIG_SOC_AU1500) += fixup-au1000.o ops-au1000.o diff --git a/arch/mips/pci/fixup-ev96100.c b/arch/mips/pci/fixup-ev96100.c deleted file mode 100644 index e2bc977b6d58..000000000000 --- a/arch/mips/pci/fixup-ev96100.c +++ /dev/null @@ -1,48 +0,0 @@ -/* - * - * BRIEF MODULE DESCRIPTION - * EV96100 Board specific pci fixups. - * - * Copyright 2001 MontaVista Software Inc. - * Author: MontaVista Software, Inc. - * ppopov@mvista.com or source@mvista.com - * - * 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 SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN - * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF - * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON - * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF - * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * 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 - -static char irq_tab_ev96100[][5] __initdata = { - [8] = { 0, 5, 5, 5, 5 }, - [9] = { 0, 2, 2, 2, 2 } -}; - -int __init pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin) -{ - return irq_tab_ev96100[slot][pin]; -} - -/* Do platform specific device initialization at pci_enable_device() time */ -int pcibios_plat_dev_init(struct pci_dev *dev) -{ - return 0; -} diff --git a/arch/mips/pci/ops-gt96100.c b/arch/mips/pci/ops-gt96100.c deleted file mode 100644 index 9e4ea6627e21..000000000000 --- a/arch/mips/pci/ops-gt96100.c +++ /dev/null @@ -1,169 +0,0 @@ -/* - * - * BRIEF MODULE DESCRIPTION - * Galileo EV96100 board specific pci support. - * - * Copyright 2000 MontaVista Software Inc. - * Author: MontaVista Software, Inc. - * ppopov@mvista.com or source@mvista.com - * - * This file was derived from Carsten Langgaard's - * arch/mips/mips-boards/generic/pci.c - * - * Carsten Langgaard, carstenl@mips.com - * Copyright (C) 1999,2000 MIPS Technologies, 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 SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN - * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF - * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON - * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF - * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * 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 - -#include -#include -#include - -#define PCI_ACCESS_READ 0 -#define PCI_ACCESS_WRITE 1 - -static int static gt96100_config_access(unsigned char access_type, - struct pci_bus *bus, unsigned int devfn, int where, u32 * data) -{ - unsigned char bus = bus->number; - u32 intr; - - /* - * Because of a bug in the galileo (for slot 31). - */ - if (bus == 0 && devfn >= PCI_DEVFN(31, 0)) - return PCIBIOS_DEVICE_NOT_FOUND; - - /* Clear cause register bits */ - GT_WRITE(GT_INTRCAUSE_OFS, ~(GT_INTRCAUSE_MASABORT0_BIT | - GT_INTRCAUSE_TARABORT0_BIT)); - - /* Setup address */ - GT_WRITE(GT_PCI0_CFGADDR_OFS, - (bus << GT_PCI0_CFGADDR_BUSNUM_SHF) | - (devfn << GT_PCI0_CFGADDR_FUNCTNUM_SHF) | - ((where / 4) << GT_PCI0_CFGADDR_REGNUM_SHF) | - GT_PCI0_CFGADDR_CONFIGEN_BIT); - udelay(2); - - - if (access_type == PCI_ACCESS_WRITE) { - if (devfn != 0) - *data = le32_to_cpu(*data); - GT_WRITE(GT_PCI0_CFGDATA_OFS, *data); - } else { - *data = GT_READ(GT_PCI0_CFGDATA_OFS); - if (devfn != 0) - *data = le32_to_cpu(*data); - } - - udelay(2); - - /* Check for master or target abort */ - intr = GT_READ(GT_INTRCAUSE_OFS); - - if (intr & (GT_INTRCAUSE_MASABORT0_BIT | GT_INTRCAUSE_TARABORT0_BIT)) { - /* Error occured */ - - /* Clear bits */ - GT_WRITE(GT_INTRCAUSE_OFS, ~(GT_INTRCAUSE_MASABORT0_BIT | - GT_INTRCAUSE_TARABORT0_BIT)); - return -1; - } - return 0; -} - -/* - * We can't address 8 and 16 bit words directly. Instead we have to - * read/write a 32bit word and mask/modify the data we actually want. - */ -static int gt96100_pcibios_read(struct pci_bus *bus, unsigned int devfn, - int where, int size, u32 * val) -{ - u32 data = 0; - - if (gt96100_config_access(PCI_ACCESS_READ, bus, devfn, where, &data)) - return PCIBIOS_DEVICE_NOT_FOUND; - - switch (size) { - case 1: - *val = (data >> ((where & 3) << 3)) & 0xff; - break; - - case 2: - *val = (data >> ((where & 3) << 3)) & 0xffff; - break; - - case 4: - *val = data; - break; - } - return PCIBIOS_SUCCESSFUL; -} - -static int gt96100_pcibios_write(struct pci_bus *bus, unsigned int devfn, - int where, int size, u32 val) -{ - u32 data = 0; - - switch (size) { - case 1: - if (gt96100_config_access(PCI_ACCESS_READ, bus, devfn, where, &data)) - return -1; - - data = (data & ~(0xff << ((where & 3) << 3))) | - (val << ((where & 3) << 3)); - - if (gt96100_config_access(PCI_ACCESS_WRITE, bus, devfn, where, &data)) - return -1; - - return PCIBIOS_SUCCESSFUL; - - case 2: - if (gt96100_config_access(PCI_ACCESS_READ, bus, devfn, where, &data)) - return -1; - - data = (data & ~(0xffff << ((where & 3) << 3))) | - (val << ((where & 3) << 3)); - - if (gt96100_config_access(PCI_ACCESS_WRITE, dev, where, &data)) - return -1; - - - return PCIBIOS_SUCCESSFUL; - - case 4: - if (gt96100_config_access(PCI_ACCESS_WRITE, dev, where, &val)) - return -1; - - return PCIBIOS_SUCCESSFUL; - } -} - -struct pci_ops gt96100_pci_ops = { - .read = gt96100_pcibios_read, - .write = gt96100_pcibios_write -}; diff --git a/arch/mips/pci/pci-ev96100.c b/arch/mips/pci/pci-ev96100.c deleted file mode 100644 index f9457ea00def..000000000000 --- a/arch/mips/pci/pci-ev96100.c +++ /dev/null @@ -1,63 +0,0 @@ -/* - * Copyright 2000 MontaVista Software Inc. - * Author: MontaVista Software, Inc. - * ppopov@mvista.com or source@mvista.com - * - * Carsten Langgaard, carstenl@mips.com - * Copyright (C) 1999,2000 MIPS Technologies, Inc. All rights reserved. - * - * Copyright (C) 2004 by Ralf Baechle (ralf@linux-mips.org) - * - * 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 SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN - * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF - * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON - * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF - * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * 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 resource pci_io_resource = { - .name = "io pci IO space", - .start = 0x10000000, - .end = 0x11ffffff, - .flags = IORESOURCE_IO -}; - -static struct resource pci_mem_resource = { - .name = "ext pci memory space", - .start = 0x12000000, - .end = 0x13ffffff, - .flags = IORESOURCE_MEM -}; - -extern struct pci_ops gt96100_pci_ops; - -struct pci_controller ev96100_controller = { - .pci_ops = >96100_pci_ops, - .io_resource = &pci_io_resource, - .mem_resource = &pci_mem_resource, -}; - -static void ev96100_pci_init(void) -{ - register_pci_controller(&ev96100_controller); -} - -arch_initcall(ev96100_pci_init); diff --git a/include/asm-mips/bootinfo.h b/include/asm-mips/bootinfo.h index 3b745e76f429..78c35ec46362 100644 --- a/include/asm-mips/bootinfo.h +++ b/include/asm-mips/bootinfo.h @@ -112,8 +112,7 @@ * Valid machtype for group GALILEO */ #define MACH_GROUP_GALILEO 11 /* Galileo Eval Boards */ -#define MACH_EV96100 0 /* EV96100 */ -#define MACH_EV64120A 1 /* EV64120A */ +#define MACH_EV64120A 0 /* EV64120A */ /* * Valid machtype for group MOMENCO diff --git a/include/asm-mips/galileo-boards/gt96100.h b/include/asm-mips/galileo-boards/gt96100.h deleted file mode 100644 index aabd1b629c19..000000000000 --- a/include/asm-mips/galileo-boards/gt96100.h +++ /dev/null @@ -1,427 +0,0 @@ -/* - * Copyright 2000 MontaVista Software Inc. - * Author: MontaVista Software, Inc. - * stevel@mvista.com or source@mvista.com - * - * This program is free software; you can distribute it and/or modify it - * under the terms 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., - * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA. - * - * Register offsets of the MIPS GT96100 Advanced Communication Controller. - */ -#ifndef _GT96100_H -#define _GT96100_H - -/* - * Galileo GT96100 internal register base. - */ -#define MIPS_GT96100_BASE (KSEG1ADDR(0x14000000)) - -#define GT96100_WRITE(ofs, data) \ - *(volatile u32 *)(MIPS_GT96100_BASE+ofs) = cpu_to_le32(data) -#define GT96100_READ(ofs) \ - le32_to_cpu(*(volatile u32 *)(MIPS_GT96100_BASE+ofs)) - -#define GT96100_ETH_IO_SIZE 0x4000 - -/************************************************************************ - * Register offset addresses follow - ************************************************************************/ - -/* CPU Interface Control Registers */ -#define GT96100_CPU_INTERF_CONFIG 0x000000 - -/* Ethernet Ports */ -#define GT96100_ETH_PHY_ADDR_REG 0x080800 -#define GT96100_ETH_SMI_REG 0x080810 -/* - These are offsets to port 0 registers. Add GT96100_ETH_IO_SIZE to - get offsets to port 1 registers. -*/ -#define GT96100_ETH_PORT_CONFIG 0x084800 -#define GT96100_ETH_PORT_CONFIG_EXT 0x084808 -#define GT96100_ETH_PORT_COMM 0x084810 -#define GT96100_ETH_PORT_STATUS 0x084818 -#define GT96100_ETH_SER_PARAM 0x084820 -#define GT96100_ETH_HASH_TBL_PTR 0x084828 -#define GT96100_ETH_FLOW_CNTRL_SRC_ADDR_L 0x084830 -#define GT96100_ETH_FLOW_CNTRL_SRC_ADDR_H 0x084838 -#define GT96100_ETH_SDMA_CONFIG 0x084840 -#define GT96100_ETH_SDMA_COMM 0x084848 -#define GT96100_ETH_INT_CAUSE 0x084850 -#define GT96100_ETH_INT_MASK 0x084858 -#define GT96100_ETH_1ST_RX_DESC_PTR0 0x084880 -#define GT96100_ETH_1ST_RX_DESC_PTR1 0x084884 -#define GT96100_ETH_1ST_RX_DESC_PTR2 0x084888 -#define GT96100_ETH_1ST_RX_DESC_PTR3 0x08488C -#define GT96100_ETH_CURR_RX_DESC_PTR0 0x0848A0 -#define GT96100_ETH_CURR_RX_DESC_PTR1 0x0848A4 -#define GT96100_ETH_CURR_RX_DESC_PTR2 0x0848A8 -#define GT96100_ETH_CURR_RX_DESC_PTR3 0x0848AC -#define GT96100_ETH_CURR_TX_DESC_PTR0 0x0848E0 -#define GT96100_ETH_CURR_TX_DESC_PTR1 0x0848E4 -#define GT96100_ETH_MIB_COUNT_BASE 0x085800 - -/* SDMAs */ -#define GT96100_SDMA_GROUP_CONFIG 0x101AF0 -/* SDMA Group 0 */ -#define GT96100_SDMA_G0_CHAN0_CONFIG 0x000900 -#define GT96100_SDMA_G0_CHAN0_COMM 0x000908 -#define GT96100_SDMA_G0_CHAN0_RX_DESC_BASE 0x008900 -#define GT96100_SDMA_G0_CHAN0_CURR_RX_DESC_PTR 0x008910 -#define GT96100_SDMA_G0_CHAN0_TX_DESC_BASE 0x00C900 -#define GT96100_SDMA_G0_CHAN0_CURR_TX_DESC_PTR 0x00C910 -#define GT96100_SDMA_G0_CHAN0_1ST_TX_DESC_PTR 0x00C914 -#define GT96100_SDMA_G0_CHAN1_CONFIG 0x010900 -#define GT96100_SDMA_G0_CHAN1_COMM 0x010908 -#define GT96100_SDMA_G0_CHAN1_RX_DESC_BASE 0x018900 -#define GT96100_SDMA_G0_CHAN1_CURR_RX_DESC_PTR 0x018910 -#define GT96100_SDMA_G0_CHAN1_TX_DESC_BASE 0x01C900 -#define GT96100_SDMA_G0_CHAN1_CURR_TX_DESC_PTR 0x01C910 -#define GT96100_SDMA_G0_CHAN1_1ST_TX_DESC_PTR 0x01C914 -#define GT96100_SDMA_G0_CHAN2_CONFIG 0x020900 -#define GT96100_SDMA_G0_CHAN2_COMM 0x020908 -#define GT96100_SDMA_G0_CHAN2_RX_DESC_BASE 0x028900 -#define GT96100_SDMA_G0_CHAN2_CURR_RX_DESC_PTR 0x028910 -#define GT96100_SDMA_G0_CHAN2_TX_DESC_BASE 0x02C900 -#define GT96100_SDMA_G0_CHAN2_CURR_TX_DESC_PTR 0x02C910 -#define GT96100_SDMA_G0_CHAN2_1ST_TX_DESC_PTR 0x02C914 -#define GT96100_SDMA_G0_CHAN3_CONFIG 0x030900 -#define GT96100_SDMA_G0_CHAN3_COMM 0x030908 -#define GT96100_SDMA_G0_CHAN3_RX_DESC_BASE 0x038900 -#define GT96100_SDMA_G0_CHAN3_CURR_RX_DESC_PTR 0x038910 -#define GT96100_SDMA_G0_CHAN3_TX_DESC_BASE 0x03C900 -#define GT96100_SDMA_G0_CHAN3_CURR_TX_DESC_PTR 0x03C910 -#define GT96100_SDMA_G0_CHAN3_1ST_TX_DESC_PTR 0x03C914 -#define GT96100_SDMA_G0_CHAN4_CONFIG 0x040900 -#define GT96100_SDMA_G0_CHAN4_COMM 0x040908 -#define GT96100_SDMA_G0_CHAN4_RX_DESC_BASE 0x048900 -#define GT96100_SDMA_G0_CHAN4_CURR_RX_DESC_PTR 0x048910 -#define GT96100_SDMA_G0_CHAN4_TX_DESC_BASE 0x04C900 -#define GT96100_SDMA_G0_CHAN4_CURR_TX_DESC_PTR 0x04C910 -#define GT96100_SDMA_G0_CHAN4_1ST_TX_DESC_PTR 0x04C914 -#define GT96100_SDMA_G0_CHAN5_CONFIG 0x050900 -#define GT96100_SDMA_G0_CHAN5_COMM 0x050908 -#define GT96100_SDMA_G0_CHAN5_RX_DESC_BASE 0x058900 -#define GT96100_SDMA_G0_CHAN5_CURR_RX_DESC_PTR 0x058910 -#define GT96100_SDMA_G0_CHAN5_TX_DESC_BASE 0x05C900 -#define GT96100_SDMA_G0_CHAN5_CURR_TX_DESC_PTR 0x05C910 -#define GT96100_SDMA_G0_CHAN5_1ST_TX_DESC_PTR 0x05C914 -#define GT96100_SDMA_G0_CHAN6_CONFIG 0x060900 -#define GT96100_SDMA_G0_CHAN6_COMM 0x060908 -#define GT96100_SDMA_G0_CHAN6_RX_DESC_BASE 0x068900 -#define GT96100_SDMA_G0_CHAN6_CURR_RX_DESC_PTR 0x068910 -#define GT96100_SDMA_G0_CHAN6_TX_DESC_BASE 0x06C900 -#define GT96100_SDMA_G0_CHAN6_CURR_TX_DESC_PTR 0x06C910 -#define GT96100_SDMA_G0_CHAN6_1ST_TX_DESC_PTR 0x06C914 -#define GT96100_SDMA_G0_CHAN7_CONFIG 0x070900 -#define GT96100_SDMA_G0_CHAN7_COMM 0x070908 -#define GT96100_SDMA_G0_CHAN7_RX_DESC_BASE 0x078900 -#define GT96100_SDMA_G0_CHAN7_CURR_RX_DESC_PTR 0x078910 -#define GT96100_SDMA_G0_CHAN7_TX_DESC_BASE 0x07C900 -#define GT96100_SDMA_G0_CHAN7_CURR_TX_DESC_PTR 0x07C910 -#define GT96100_SDMA_G0_CHAN7_1ST_TX_DESC_PTR 0x07C914 -/* SDMA Group 1 */ -#define GT96100_SDMA_G1_CHAN0_CONFIG 0x100900 -#define GT96100_SDMA_G1_CHAN0_COMM 0x100908 -#define GT96100_SDMA_G1_CHAN0_RX_DESC_BASE 0x108900 -#define GT96100_SDMA_G1_CHAN0_CURR_RX_DESC_PTR 0x108910 -#define GT96100_SDMA_G1_CHAN0_TX_DESC_BASE 0x10C900 -#define GT96100_SDMA_G1_CHAN0_CURR_TX_DESC_PTR 0x10C910 -#define GT96100_SDMA_G1_CHAN0_1ST_TX_DESC_PTR 0x10C914 -#define GT96100_SDMA_G1_CHAN1_CONFIG 0x110900 -#define GT96100_SDMA_G1_CHAN1_COMM 0x110908 -#define GT96100_SDMA_G1_CHAN1_RX_DESC_BASE 0x118900 -#define GT96100_SDMA_G1_CHAN1_CURR_RX_DESC_PTR 0x118910 -#define GT96100_SDMA_G1_CHAN1_TX_DESC_BASE 0x11C900 -#define GT96100_SDMA_G1_CHAN1_CURR_TX_DESC_PTR 0x11C910 -#define GT96100_SDMA_G1_CHAN1_1ST_TX_DESC_PTR 0x11C914 -#define GT96100_SDMA_G1_CHAN2_CONFIG 0x120900 -#define GT96100_SDMA_G1_CHAN2_COMM 0x120908 -#define GT96100_SDMA_G1_CHAN2_RX_DESC_BASE 0x128900 -#define GT96100_SDMA_G1_CHAN2_CURR_RX_DESC_PTR 0x128910 -#define GT96100_SDMA_G1_CHAN2_TX_DESC_BASE 0x12C900 -#define GT96100_SDMA_G1_CHAN2_CURR_TX_DESC_PTR 0x12C910 -#define GT96100_SDMA_G1_CHAN2_1ST_TX_DESC_PTR 0x12C914 -#define GT96100_SDMA_G1_CHAN3_CONFIG 0x130900 -#define GT96100_SDMA_G1_CHAN3_COMM 0x130908 -#define GT96100_SDMA_G1_CHAN3_RX_DESC_BASE 0x138900 -#define GT96100_SDMA_G1_CHAN3_CURR_RX_DESC_PTR 0x138910 -#define GT96100_SDMA_G1_CHAN3_TX_DESC_BASE 0x13C900 -#define GT96100_SDMA_G1_CHAN3_CURR_TX_DESC_PTR 0x13C910 -#define GT96100_SDMA_G1_CHAN3_1ST_TX_DESC_PTR 0x13C914 -#define GT96100_SDMA_G1_CHAN4_CONFIG 0x140900 -#define GT96100_SDMA_G1_CHAN4_COMM 0x140908 -#define GT96100_SDMA_G1_CHAN4_RX_DESC_BASE 0x148900 -#define GT96100_SDMA_G1_CHAN4_CURR_RX_DESC_PTR 0x148910 -#define GT96100_SDMA_G1_CHAN4_TX_DESC_BASE 0x14C900 -#define GT96100_SDMA_G1_CHAN4_CURR_TX_DESC_PTR 0x14C910 -#define GT96100_SDMA_G1_CHAN4_1ST_TX_DESC_PTR 0x14C914 -#define GT96100_SDMA_G1_CHAN5_CONFIG 0x150900 -#define GT96100_SDMA_G1_CHAN5_COMM 0x150908 -#define GT96100_SDMA_G1_CHAN5_RX_DESC_BASE 0x158900 -#define GT96100_SDMA_G1_CHAN5_CURR_RX_DESC_PTR 0x158910 -#define GT96100_SDMA_G1_CHAN5_TX_DESC_BASE 0x15C900 -#define GT96100_SDMA_G1_CHAN5_CURR_TX_DESC_PTR 0x15C910 -#define GT96100_SDMA_G1_CHAN5_1ST_TX_DESC_PTR 0x15C914 -#define GT96100_SDMA_G1_CHAN6_CONFIG 0x160900 -#define GT96100_SDMA_G1_CHAN6_COMM 0x160908 -#define GT96100_SDMA_G1_CHAN6_RX_DESC_BASE 0x168900 -#define GT96100_SDMA_G1_CHAN6_CURR_RX_DESC_PTR 0x168910 -#define GT96100_SDMA_G1_CHAN6_TX_DESC_BASE 0x16C900 -#define GT96100_SDMA_G1_CHAN6_CURR_TX_DESC_PTR 0x16C910 -#define GT96100_SDMA_G1_CHAN6_1ST_TX_DESC_PTR 0x16C914 -#define GT96100_SDMA_G1_CHAN7_CONFIG 0x170900 -#define GT96100_SDMA_G1_CHAN7_COMM 0x170908 -#define GT96100_SDMA_G1_CHAN7_RX_DESC_BASE 0x178900 -#define GT96100_SDMA_G1_CHAN7_CURR_RX_DESC_PTR 0x178910 -#define GT96100_SDMA_G1_CHAN7_TX_DESC_BASE 0x17C900 -#define GT96100_SDMA_G1_CHAN7_CURR_TX_DESC_PTR 0x17C910 -#define GT96100_SDMA_G1_CHAN7_1ST_TX_DESC_PTR 0x17C914 -/* MPSCs */ -#define GT96100_MPSC0_MAIN_CONFIG_LOW 0x000A00 -#define GT96100_MPSC0_MAIN_CONFIG_HIGH 0x000A04 -#define GT96100_MPSC0_PROTOCOL_CONFIG 0x000A08 -#define GT96100_MPSC_CHAN0_REG1 0x000A0C -#define GT96100_MPSC_CHAN0_REG2 0x000A10 -#define GT96100_MPSC_CHAN0_REG3 0x000A14 -#define GT96100_MPSC_CHAN0_REG4 0x000A18 -#define GT96100_MPSC_CHAN0_REG5 0x000A1C -#define GT96100_MPSC_CHAN0_REG6 0x000A20 -#define GT96100_MPSC_CHAN0_REG7 0x000A24 -#define GT96100_MPSC_CHAN0_REG8 0x000A28 -#define GT96100_MPSC_CHAN0_REG9 0x000A2C -#define GT96100_MPSC_CHAN0_REG10 0x000A30 -#define GT96100_MPSC_CHAN0_REG11 0x000A34 -#define GT96100_MPSC1_MAIN_CONFIG_LOW 0x008A00 -#define GT96100_MPSC1_MAIN_CONFIG_HIGH 0x008A04 -#define GT96100_MPSC1_PROTOCOL_CONFIG 0x008A08 -#define GT96100_MPSC_CHAN1_REG1 0x008A0C -#define GT96100_MPSC_CHAN1_REG2 0x008A10 -#define GT96100_MPSC_CHAN1_REG3 0x008A14 -#define GT96100_MPSC_CHAN1_REG4 0x008A18 -#define GT96100_MPSC_CHAN1_REG5 0x008A1C -#define GT96100_MPSC_CHAN1_REG6 0x008A20 -#define GT96100_MPSC_CHAN1_REG7 0x008A24 -#define GT96100_MPSC_CHAN1_REG8 0x008A28 -#define GT96100_MPSC_CHAN1_REG9 0x008A2C -#define GT96100_MPSC_CHAN1_REG10 0x008A30 -#define GT96100_MPSC_CHAN1_REG11 0x008A34 -#define GT96100_MPSC2_MAIN_CONFIG_LOW 0x010A00 -#define GT96100_MPSC2_MAIN_CONFIG_HIGH 0x010A04 -#define GT96100_MPSC2_PROTOCOL_CONFIG 0x010A08 -#define GT96100_MPSC_CHAN2_REG1 0x010A0C -#define GT96100_MPSC_CHAN2_REG2 0x010A10 -#define GT96100_MPSC_CHAN2_REG3 0x010A14 -#define GT96100_MPSC_CHAN2_REG4 0x010A18 -#define GT96100_MPSC_CHAN2_REG5 0x010A1C -#define GT96100_MPSC_CHAN2_REG6 0x010A20 -#define GT96100_MPSC_CHAN2_REG7 0x010A24 -#define GT96100_MPSC_CHAN2_REG8 0x010A28 -#define GT96100_MPSC_CHAN2_REG9 0x010A2C -#define GT96100_MPSC_CHAN2_REG10 0x010A30 -#define GT96100_MPSC_CHAN2_REG11 0x010A34 -#define GT96100_MPSC3_MAIN_CONFIG_LOW 0x018A00 -#define GT96100_MPSC3_MAIN_CONFIG_HIGH 0x018A04 -#define GT96100_MPSC3_PROTOCOL_CONFIG 0x018A08 -#define GT96100_MPSC_CHAN3_REG1 0x018A0C -#define GT96100_MPSC_CHAN3_REG2 0x018A10 -#define GT96100_MPSC_CHAN3_REG3 0x018A14 -#define GT96100_MPSC_CHAN3_REG4 0x018A18 -#define GT96100_MPSC_CHAN3_REG5 0x018A1C -#define GT96100_MPSC_CHAN3_REG6 0x018A20 -#define GT96100_MPSC_CHAN3_REG7 0x018A24 -#define GT96100_MPSC_CHAN3_REG8 0x018A28 -#define GT96100_MPSC_CHAN3_REG9 0x018A2C -#define GT96100_MPSC_CHAN3_REG10 0x018A30 -#define GT96100_MPSC_CHAN3_REG11 0x018A34 -#define GT96100_MPSC4_MAIN_CONFIG_LOW 0x020A00 -#define GT96100_MPSC4_MAIN_CONFIG_HIGH 0x020A04 -#define GT96100_MPSC4_PROTOCOL_CONFIG 0x020A08 -#define GT96100_MPSC_CHAN4_REG1 0x020A0C -#define GT96100_MPSC_CHAN4_REG2 0x020A10 -#define GT96100_MPSC_CHAN4_REG3 0x020A14 -#define GT96100_MPSC_CHAN4_REG4 0x020A18 -#define GT96100_MPSC_CHAN4_REG5 0x020A1C -#define GT96100_MPSC_CHAN4_REG6 0x020A20 -#define GT96100_MPSC_CHAN4_REG7 0x020A24 -#define GT96100_MPSC_CHAN4_REG8 0x020A28 -#define GT96100_MPSC_CHAN4_REG9 0x020A2C -#define GT96100_MPSC_CHAN4_REG10 0x020A30 -#define GT96100_MPSC_CHAN4_REG11 0x020A34 -#define GT96100_MPSC5_MAIN_CONFIG_LOW 0x028A00 -#define GT96100_MPSC5_MAIN_CONFIG_HIGH 0x028A04 -#define GT96100_MPSC5_PROTOCOL_CONFIG 0x028A08 -#define GT96100_MPSC_CHAN5_REG1 0x028A0C -#define GT96100_MPSC_CHAN5_REG2 0x028A10 -#define GT96100_MPSC_CHAN5_REG3 0x028A14 -#define GT96100_MPSC_CHAN5_REG4 0x028A18 -#define GT96100_MPSC_CHAN5_REG5 0x028A1C -#define GT96100_MPSC_CHAN5_REG6 0x028A20 -#define GT96100_MPSC_CHAN5_REG7 0x028A24 -#define GT96100_MPSC_CHAN5_REG8 0x028A28 -#define GT96100_MPSC_CHAN5_REG9 0x028A2C -#define GT96100_MPSC_CHAN5_REG10 0x028A30 -#define GT96100_MPSC_CHAN5_REG11 0x028A34 -#define GT96100_MPSC6_MAIN_CONFIG_LOW 0x030A00 -#define GT96100_MPSC6_MAIN_CONFIG_HIGH 0x030A04 -#define GT96100_MPSC6_PROTOCOL_CONFIG 0x030A08 -#define GT96100_MPSC_CHAN6_REG1 0x030A0C -#define GT96100_MPSC_CHAN6_REG2 0x030A10 -#define GT96100_MPSC_CHAN6_REG3 0x030A14 -#define GT96100_MPSC_CHAN6_REG4 0x030A18 -#define GT96100_MPSC_CHAN6_REG5 0x030A1C -#define GT96100_MPSC_CHAN6_REG6 0x030A20 -#define GT96100_MPSC_CHAN6_REG7 0x030A24 -#define GT96100_MPSC_CHAN6_REG8 0x030A28 -#define GT96100_MPSC_CHAN6_REG9 0x030A2C -#define GT96100_MPSC_CHAN6_REG10 0x030A30 -#define GT96100_MPSC_CHAN6_REG11 0x030A34 -#define GT96100_MPSC7_MAIN_CONFIG_LOW 0x038A00 -#define GT96100_MPSC7_MAIN_CONFIG_HIGH 0x038A04 -#define GT96100_MPSC7_PROTOCOL_CONFIG 0x038A08 -#define GT96100_MPSC_CHAN7_REG1 0x038A0C -#define GT96100_MPSC_CHAN7_REG2 0x038A10 -#define GT96100_MPSC_CHAN7_REG3 0x038A14 -#define GT96100_MPSC_CHAN7_REG4 0x038A18 -#define GT96100_MPSC_CHAN7_REG5 0x038A1C -#define GT96100_MPSC_CHAN7_REG6 0x038A20 -#define GT96100_MPSC_CHAN7_REG7 0x038A24 -#define GT96100_MPSC_CHAN7_REG8 0x038A28 -#define GT96100_MPSC_CHAN7_REG9 0x038A2C -#define GT96100_MPSC_CHAN7_REG10 0x038A30 -#define GT96100_MPSC_CHAN7_REG11 0x038A34 -/* FlexTDMs */ -/* TDPR0 - Transmit Dual Port RAM. block size 0xff */ -#define GT96100_FXTDM0_TDPR0_BLK0_BASE 0x000B00 -#define GT96100_FXTDM0_TDPR0_BLK1_BASE 0x001B00 -#define GT96100_FXTDM0_TDPR0_BLK2_BASE 0x002B00 -#define GT96100_FXTDM0_TDPR0_BLK3_BASE 0x003B00 -/* RDPR0 - Receive Dual Port RAM. block size 0xff */ -#define GT96100_FXTDM0_RDPR0_BLK0_BASE 0x004B00 -#define GT96100_FXTDM0_RDPR0_BLK1_BASE 0x005B00 -#define GT96100_FXTDM0_RDPR0_BLK2_BASE 0x006B00 -#define GT96100_FXTDM0_RDPR0_BLK3_BASE 0x007B00 -#define GT96100_FXTDM0_TX_READ_PTR 0x008B00 -#define GT96100_FXTDM0_RX_READ_PTR 0x008B04 -#define GT96100_FXTDM0_CONFIG 0x008B08 -#define GT96100_FXTDM0_AUX_CHANA_TX 0x008B0C -#define GT96100_FXTDM0_AUX_CHANA_RX 0x008B10 -#define GT96100_FXTDM0_AUX_CHANB_TX 0x008B14 -#define GT96100_FXTDM0_AUX_CHANB_RX 0x008B18 -#define GT96100_FXTDM1_TDPR1_BLK0_BASE 0x010B00 -#define GT96100_FXTDM1_TDPR1_BLK1_BASE 0x011B00 -#define GT96100_FXTDM1_TDPR1_BLK2_BASE 0x012B00 -#define GT96100_FXTDM1_TDPR1_BLK3_BASE 0x013B00 -#define GT96100_FXTDM1_RDPR1_BLK0_BASE 0x014B00 -#define GT96100_FXTDM1_RDPR1_BLK1_BASE 0x015B00 -#define GT96100_FXTDM1_RDPR1_BLK2_BASE 0x016B00 -#define GT96100_FXTDM1_RDPR1_BLK3_BASE 0x017B00 -#define GT96100_FXTDM1_TX_READ_PTR 0x018B00 -#define GT96100_FXTDM1_RX_READ_PTR 0x018B04 -#define GT96100_FXTDM1_CONFIG 0x018B08 -#define GT96100_FXTDM1_AUX_CHANA_TX 0x018B0C -#define GT96100_FXTDM1_AUX_CHANA_RX 0x018B10 -#define GT96100_FLTDM1_AUX_CHANB_TX 0x018B14 -#define GT96100_FLTDM1_AUX_CHANB_RX 0x018B18 -#define GT96100_FLTDM2_TDPR2_BLK0_BASE 0x020B00 -#define GT96100_FLTDM2_TDPR2_BLK1_BASE 0x021B00 -#define GT96100_FLTDM2_TDPR2_BLK2_BASE 0x022B00 -#define GT96100_FLTDM2_TDPR2_BLK3_BASE 0x023B00 -#define GT96100_FLTDM2_RDPR2_BLK0_BASE 0x024B00 -#define GT96100_FLTDM2_RDPR2_BLK1_BASE 0x025B00 -#define GT96100_FLTDM2_RDPR2_BLK2_BASE 0x026B00 -#define GT96100_FLTDM2_RDPR2_BLK3_BASE 0x027B00 -#define GT96100_FLTDM2_TX_READ_PTR 0x028B00 -#define GT96100_FLTDM2_RX_READ_PTR 0x028B04 -#define GT96100_FLTDM2_CONFIG 0x028B08 -#define GT96100_FLTDM2_AUX_CHANA_TX 0x028B0C -#define GT96100_FLTDM2_AUX_CHANA_RX 0x028B10 -#define GT96100_FLTDM2_AUX_CHANB_TX 0x028B14 -#define GT96100_FLTDM2_AUX_CHANB_RX 0x028B18 -#define GT96100_FLTDM3_TDPR3_BLK0_BASE 0x030B00 -#define GT96100_FLTDM3_TDPR3_BLK1_BASE 0x031B00 -#define GT96100_FLTDM3_TDPR3_BLK2_BASE 0x032B00 -#define GT96100_FLTDM3_TDPR3_BLK3_BASE 0x033B00 -#define GT96100_FXTDM3_RDPR3_BLK0_BASE 0x034B00 -#define GT96100_FXTDM3_RDPR3_BLK1_BASE 0x035B00 -#define GT96100_FXTDM3_RDPR3_BLK2_BASE 0x036B00 -#define GT96100_FXTDM3_RDPR3_BLK3_BASE 0x037B00 -#define GT96100_FXTDM3_TX_READ_PTR 0x038B00 -#define GT96100_FXTDM3_RX_READ_PTR 0x038B04 -#define GT96100_FXTDM3_CONFIG 0x038B08 -#define GT96100_FXTDM3_AUX_CHANA_TX 0x038B0C -#define GT96100_FXTDM3_AUX_CHANA_RX 0x038B10 -#define GT96100_FXTDM3_AUX_CHANB_TX 0x038B14 -#define GT96100_FXTDM3_AUX_CHANB_RX 0x038B18 -/* Baud Rate Generators */ -#define GT96100_BRG0_CONFIG 0x102A00 -#define GT96100_BRG0_BAUD_TUNE 0x102A04 -#define GT96100_BRG1_CONFIG 0x102A08 -#define GT96100_BRG1_BAUD_TUNE 0x102A0C -#define GT96100_BRG2_CONFIG 0x102A10 -#define GT96100_BRG2_BAUD_TUNE 0x102A14 -#define GT96100_BRG3_CONFIG 0x102A18 -#define GT96100_BRG3_BAUD_TUNE 0x102A1C -#define GT96100_BRG4_CONFIG 0x102A20 -#define GT96100_BRG4_BAUD_TUNE 0x102A24 -#define GT96100_BRG5_CONFIG 0x102A28 -#define GT96100_BRG5_BAUD_TUNE 0x102A2C -#define GT96100_BRG6_CONFIG 0x102A30 -#define GT96100_BRG6_BAUD_TUNE 0x102A34 -#define GT96100_BRG7_CONFIG 0x102A38 -#define GT96100_BRG7_BAUD_TUNE 0x102A3C -/* Routing Registers */ -#define GT96100_ROUTE_MAIN 0x101A00 -#define GT96100_ROUTE_RX_CLOCK 0x101A10 -#define GT96100_ROUTE_TX_CLOCK 0x101A20 -/* General Purpose Ports */ -#define GT96100_GPP_CONFIG0 0x100A00 -#define GT96100_GPP_CONFIG1 0x100A04 -#define GT96100_GPP_CONFIG2 0x100A08 -#define GT96100_GPP_CONFIG3 0x100A0C -#define GT96100_GPP_IO0 0x100A20 -#define GT96100_GPP_IO1 0x100A24 -#define GT96100_GPP_IO2 0x100A28 -#define GT96100_GPP_IO3 0x100A2C -#define GT96100_GPP_DATA0 0x100A40 -#define GT96100_GPP_DATA1 0x100A44 -#define GT96100_GPP_DATA2 0x100A48 -#define GT96100_GPP_DATA3 0x100A4C -#define GT96100_GPP_LEVEL0 0x100A60 -#define GT96100_GPP_LEVEL1 0x100A64 -#define GT96100_GPP_LEVEL2 0x100A68 -#define GT96100_GPP_LEVEL3 0x100A6C -/* Watchdog */ -#define GT96100_WD_CONFIG 0x101A80 -#define GT96100_WD_VALUE 0x101A84 -/* Communication Unit Arbiter */ -#define GT96100_COMM_UNIT_ARBTR_CONFIG 0x101AC0 -/* PCI Arbiters */ -#define GT96100_PCI0_ARBTR_CONFIG 0x101AE0 -#define GT96100_PCI1_ARBTR_CONFIG 0x101AE4 -/* CIU Arbiter */ -#define GT96100_CIU_ARBITER_CONFIG 0x101AC0 -/* Interrupt Controller */ -#define GT96100_MAIN_CAUSE 0x000C18 -#define GT96100_INT0_MAIN_MASK 0x000C1C -#define GT96100_INT1_MAIN_MASK 0x000C24 -#define GT96100_HIGH_CAUSE 0x000C98 -#define GT96100_INT0_HIGH_MASK 0x000C9C -#define GT96100_INT1_HIGH_MASK 0x000CA4 -#define GT96100_INT0_SELECT 0x000C70 -#define GT96100_INT1_SELECT 0x000C74 -#define GT96100_SERIAL_CAUSE 0x103A00 -#define GT96100_SERINT0_MASK 0x103A80 -#define GT96100_SERINT1_MASK 0x103A88 - -#endif /* _GT96100_H */ diff --git a/include/asm-mips/mach-ev96100/mach-gt64120.h b/include/asm-mips/mach-ev96100/mach-gt64120.h deleted file mode 100644 index 0ef1e6c25acf..000000000000 --- a/include/asm-mips/mach-ev96100/mach-gt64120.h +++ /dev/null @@ -1,46 +0,0 @@ -/* - * This is a direct copy of the ev96100.h file, with a global - * search and replace. The numbers are the same. - * - * The reason I'm duplicating this is so that the 64120/96100 - * defines won't be confusing in the source code. - */ -#ifndef _ASM_GT64120_EV96100_GT64120_DEP_H -#define _ASM_GT64120_EV96100_GT64120_DEP_H - -/* - * GT96100 config space base address - */ -#define GT64120_BASE (KSEG1ADDR(0x14000000)) - -/* - * PCI Bus allocation - * - * (Guessing ...) - */ -#define GT_PCI_MEM_BASE 0x12000000UL -#define GT_PCI_MEM_SIZE 0x02000000UL -#define GT_PCI_IO_BASE 0x10000000UL -#define GT_PCI_IO_SIZE 0x02000000UL -#define GT_ISA_IO_BASE PCI_IO_BASE - -/* - * Duart I/O ports. - */ -#define EV96100_COM1_BASE_ADDR (0xBD000000 + 0x20) -#define EV96100_COM2_BASE_ADDR (0xBD000000 + 0x00) - - -/* - * EV96100 interrupt controller register base. - */ -#define EV96100_ICTRL_REGS_BASE (KSEG1ADDR(0x1f000000)) - -/* - * EV96100 UART register base. - */ -#define EV96100_UART0_REGS_BASE EV96100_COM1_BASE_ADDR -#define EV96100_UART1_REGS_BASE EV96100_COM2_BASE_ADDR -#define EV96100_BASE_BAUD ( 3686400 / 16 ) - -#endif /* _ASM_GT64120_EV96100_GT64120_DEP_H */ diff --git a/include/asm-mips/serial.h b/include/asm-mips/serial.h index 584bd9c0ab2e..035637c67e7c 100644 --- a/include/asm-mips/serial.h +++ b/include/asm-mips/serial.h @@ -52,9 +52,9 @@ #endif /* - * Both Galileo boards have the same UART mappings. + * Galileo EV64120 evaluation board */ -#if defined (CONFIG_MIPS_EV96100) || defined (CONFIG_MIPS_EV64120) +#ifdef CONFIG_MIPS_EV64120 #include #include #define EV96100_SERIAL_PORT_DEFNS \ diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h index 6a1e09834559..5c1c698a92ac 100644 --- a/include/linux/pci_ids.h +++ b/include/linux/pci_ids.h @@ -1482,9 +1482,6 @@ #define PCI_DEVICE_ID_MARVELL_GT64260 0x6430 #define PCI_DEVICE_ID_MARVELL_MV64360 0x6460 #define PCI_DEVICE_ID_MARVELL_MV64460 0x6480 -#define PCI_DEVICE_ID_MARVELL_GT96100 0x9652 -#define PCI_DEVICE_ID_MARVELL_GT96100A 0x9653 - #define PCI_VENDOR_ID_V3 0x11b0 #define PCI_DEVICE_ID_V3_V960 0x0001 -- cgit v1.2.3 From ddb1199c4cd74a02d70f4c297373400893d70aa9 Mon Sep 17 00:00:00 2001 From: Richard Sandiford Date: Sun, 17 Sep 2006 20:38:39 +0100 Subject: [MIPS] fstatat syscall names MIPS is the only port to call its fstatat()-related syscalls "__NR_fstatat". Now I can see why that might be seen as every other port being wrong, but I think for o32, it is at best confusing. __NR_fstat provides a plain (32-bit) stat while __NR_fstatat provides a 64-bit stat. Changing the name to __NR_fstatat64 would make things more explicit, match x86, and make the glibc port slightly easier. The current name is more appropriate for n32 and n64, but it would be appropriate for other 64-bit targets too, and those targets have chosen to call it __NR_newfstatat instead. Using the same name for MIPS would again be more consistent and make the glibc port slightly easier. I'm not wedded to this idea if the current names are preferred, but FWIW... Signed-off-by: Richard Sandiford Signed-off-by: Ralf Baechle --- include/asm-mips/unistd.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/include/asm-mips/unistd.h b/include/asm-mips/unistd.h index 558e3cba4f92..c39142920fe6 100644 --- a/include/asm-mips/unistd.h +++ b/include/asm-mips/unistd.h @@ -313,7 +313,7 @@ #define __NR_mknodat (__NR_Linux + 290) #define __NR_fchownat (__NR_Linux + 291) #define __NR_futimesat (__NR_Linux + 292) -#define __NR_fstatat (__NR_Linux + 293) +#define __NR_fstatat64 (__NR_Linux + 293) #define __NR_unlinkat (__NR_Linux + 294) #define __NR_renameat (__NR_Linux + 295) #define __NR_linkat (__NR_Linux + 296) @@ -600,7 +600,7 @@ #define __NR_mknodat (__NR_Linux + 249) #define __NR_fchownat (__NR_Linux + 250) #define __NR_futimesat (__NR_Linux + 251) -#define __NR_fstatat (__NR_Linux + 252) +#define __NR_newfstatat (__NR_Linux + 252) #define __NR_unlinkat (__NR_Linux + 253) #define __NR_renameat (__NR_Linux + 254) #define __NR_linkat (__NR_Linux + 255) @@ -891,7 +891,7 @@ #define __NR_mknodat (__NR_Linux + 253) #define __NR_fchownat (__NR_Linux + 254) #define __NR_futimesat (__NR_Linux + 255) -#define __NR_fstatat (__NR_Linux + 256) +#define __NR_newfstatat (__NR_Linux + 256) #define __NR_unlinkat (__NR_Linux + 257) #define __NR_renameat (__NR_Linux + 258) #define __NR_linkat (__NR_Linux + 259) -- cgit v1.2.3 From e584ade1a6679bfb417620f15951796bed9805d9 Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Sat, 23 Sep 2006 18:08:36 +0100 Subject: [MIPS] Have headers_install install and . Signed-off-by: Ralf Baechle --- include/asm-mips/Kbuild | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/asm-mips/Kbuild b/include/asm-mips/Kbuild index 01ea3e045652..7897f05e3165 100644 --- a/include/asm-mips/Kbuild +++ b/include/asm-mips/Kbuild @@ -1,3 +1,3 @@ include include/asm-generic/Kbuild.asm -header-y += sgidefs.h +header-y += cachectl.h sgidefs.h sysmips.h -- cgit v1.2.3 From 36396f3c36b04f79438f87a0fccfa76aa3de6af9 Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Mon, 25 Sep 2006 15:49:49 +0100 Subject: [MIPS] s/__ASSEMBLER__/__ASSEMBLY__/ for clarity sake. Signed-off-by: Ralf Baechle --- include/asm-mips/hazards.h | 2 +- include/asm-mips/mach-excite/excite.h | 2 +- include/asm-mips/sibyte/sb1250_defs.h | 6 +++--- include/asm-mips/sibyte/sb1250_scd.h | 2 +- 4 files changed, 6 insertions(+), 6 deletions(-) (limited to 'include') diff --git a/include/asm-mips/hazards.h b/include/asm-mips/hazards.h index bf0b80404946..0fe02945feba 100644 --- a/include/asm-mips/hazards.h +++ b/include/asm-mips/hazards.h @@ -11,7 +11,7 @@ #define _ASM_HAZARDS_H -#ifdef __ASSEMBLER__ +#ifdef __ASSEMBLY__ #define ASMMACRO(name, code...) .macro name; code; .endm #else diff --git a/include/asm-mips/mach-excite/excite.h b/include/asm-mips/mach-excite/excite.h index 130bd4b8edce..4c29ba44992c 100644 --- a/include/asm-mips/mach-excite/excite.h +++ b/include/asm-mips/mach-excite/excite.h @@ -7,7 +7,7 @@ #define EXCITE_CPU_EXT_CLOCK 100000000 -#if !defined(__ASSEMBLER__) +#if !defined(__ASSEMBLY__) void __init excite_kgdb_init(void); void excite_procfs_init(void); extern unsigned long memsize; diff --git a/include/asm-mips/sibyte/sb1250_defs.h b/include/asm-mips/sibyte/sb1250_defs.h index 335dbaf1d831..a885491217c1 100644 --- a/include/asm-mips/sibyte/sb1250_defs.h +++ b/include/asm-mips/sibyte/sb1250_defs.h @@ -212,7 +212,7 @@ * Note: you'll need to define uint32_t and uint64_t in your headers. */ -#if !defined(__ASSEMBLER__) +#if !defined(__ASSEMBLY__) #define _SB_MAKE64(x) ((uint64_t)(x)) #define _SB_MAKE32(x) ((uint32_t)(x)) #else @@ -251,9 +251,9 @@ */ -#if defined(__mips64) && !defined(__ASSEMBLER__) +#if defined(__mips64) && !defined(__ASSEMBLY__) #define SBWRITECSR(csr,val) *((volatile uint64_t *) PHYS_TO_K1(csr)) = (val) #define SBREADCSR(csr) (*((volatile uint64_t *) PHYS_TO_K1(csr))) -#endif /* __ASSEMBLER__ */ +#endif /* __ASSEMBLY__ */ #endif diff --git a/include/asm-mips/sibyte/sb1250_scd.h b/include/asm-mips/sibyte/sb1250_scd.h index f4178bdcfcb0..7ed0bb611e56 100644 --- a/include/asm-mips/sibyte/sb1250_scd.h +++ b/include/asm-mips/sibyte/sb1250_scd.h @@ -149,7 +149,7 @@ * (For the assembler version, sysrev and dest may be the same register. * Also, it clobbers AT.) */ -#ifdef __ASSEMBLER__ +#ifdef __ASSEMBLY__ #define SYS_SOC_TYPE(dest, sysrev) \ .set push ; \ .set reorder ; \ -- cgit v1.2.3 From bbf2bef9f50eb119ffadd735eb0966ac8a04f91f Mon Sep 17 00:00:00 2001 From: KAMEZAWA Hiroyuki Date: Wed, 27 Sep 2006 01:49:25 -0700 Subject: [PATCH] fix "cpu to node relationship fixup: map cpu to node" Fix build error introduced by 3212fe1594e577463bc8601d28aa008f520c3377 Non-NUMA case should be handled. Signed-off-by: KAMEZAWA Hiroyuki Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/ia64/kernel/topology.c | 2 -- include/asm-ia64/numa.h | 2 ++ 2 files changed, 2 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/arch/ia64/kernel/topology.c b/arch/ia64/kernel/topology.c index 05bdf7affb43..5629b45e89c6 100644 --- a/arch/ia64/kernel/topology.c +++ b/arch/ia64/kernel/topology.c @@ -36,9 +36,7 @@ int arch_register_cpu(int num) */ if (!can_cpei_retarget() && is_cpu_cpei_target(num)) sysfs_cpus[num].cpu.no_control = 1; -#ifdef CONFIG_NUMA map_cpu_to_node(num, node_cpuid[num].nid); -#endif #endif return register_cpu(&sysfs_cpus[num].cpu, num); diff --git a/include/asm-ia64/numa.h b/include/asm-ia64/numa.h index e0a1d173e42d..7d5e2ccc37a0 100644 --- a/include/asm-ia64/numa.h +++ b/include/asm-ia64/numa.h @@ -69,6 +69,8 @@ extern void unmap_cpu_from_node(int cpu, int nid); #else /* !CONFIG_NUMA */ +#define map_cpu_to_node(cpu, nid) do{}while(0) +#define unmap_cpu_from_node(cpu, nid) do{}while(0) #define paddr_to_nid(addr) 0 -- cgit v1.2.3 From ae6ddcc5f24d6b06ae9231dc128904750a4155e0 Mon Sep 17 00:00:00 2001 From: Mingming Cao Date: Wed, 27 Sep 2006 01:49:27 -0700 Subject: [PATCH] ext3 and jbd cleanup: remove whitespace Remove whitespace from ext3 and jbd, before we clone ext4. Signed-off-by: Mingming Cao Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/ext3/balloc.c | 16 +++--- fs/ext3/bitmap.c | 2 +- fs/ext3/dir.c | 14 +++--- fs/ext3/file.c | 2 +- fs/ext3/fsync.c | 6 +-- fs/ext3/hash.c | 6 +-- fs/ext3/ialloc.c | 48 +++++++++--------- fs/ext3/inode.c | 64 ++++++++++++------------ fs/ext3/namei.c | 28 +++++------ fs/ext3/super.c | 24 ++++----- fs/jbd/checkpoint.c | 30 +++++------ fs/jbd/journal.c | 56 ++++++++++----------- fs/jbd/recovery.c | 54 ++++++++++---------- fs/jbd/revoke.c | 70 +++++++++++++------------- fs/jbd/transaction.c | 128 +++++++++++++++++++++++------------------------ include/linux/ext3_jbd.h | 10 ++-- include/linux/jbd.h | 56 ++++++++++----------- 17 files changed, 307 insertions(+), 307 deletions(-) (limited to 'include') diff --git a/fs/ext3/balloc.c b/fs/ext3/balloc.c index 063d994bda0b..e6b983707008 100644 --- a/fs/ext3/balloc.c +++ b/fs/ext3/balloc.c @@ -74,7 +74,7 @@ struct ext3_group_desc * ext3_get_group_desc(struct super_block * sb, } /* - * Read the bitmap for a given block_group, reading into the specified + * Read the bitmap for a given block_group, reading into the specified * slot in the superblock's bitmap cache. * * Return buffer_head on success or NULL in case of failure. @@ -419,8 +419,8 @@ do_more: } /* @@@ This prevents newly-allocated data from being * freed and then reallocated within the same - * transaction. - * + * transaction. + * * Ideally we would want to allow that to happen, but to * do so requires making journal_forget() capable of * revoking the queued write of a data block, which @@ -433,7 +433,7 @@ do_more: * safe not to set the allocation bit in the committed * bitmap, because we know that there is no outstanding * activity on the buffer any more and so it is safe to - * reallocate it. + * reallocate it. */ BUFFER_TRACE(bitmap_bh, "set in b_committed_data"); J_ASSERT_BH(bitmap_bh, @@ -518,7 +518,7 @@ void ext3_free_blocks(handle_t *handle, struct inode *inode, * data would allow the old block to be overwritten before the * transaction committed (because we force data to disk before commit). * This would lead to corruption if we crashed between overwriting the - * data and committing the delete. + * data and committing the delete. * * @@@ We may want to make this allocation behaviour conditional on * data-writes at some point, and disable it for metadata allocations or @@ -584,7 +584,7 @@ find_next_usable_block(ext3_grpblk_t start, struct buffer_head *bh, if (start > 0) { /* - * The goal was occupied; search forward for a free + * The goal was occupied; search forward for a free * block within the next XX blocks. * * end_goal is more or less random, but it has to be @@ -1194,7 +1194,7 @@ int ext3_should_retry_alloc(struct super_block *sb, int *retries) /* * ext3_new_block uses a goal block to assist allocation. If the goal is * free, or there is a free block within 32 blocks of the goal, that block - * is allocated. Otherwise a forward search is made for a free block; within + * is allocated. Otherwise a forward search is made for a free block; within * each block group the search first looks for an entire free byte in the block * bitmap, and then for any free bit if that fails. * This function also updates quota and i_blocks field. @@ -1303,7 +1303,7 @@ retry_alloc: smp_rmb(); /* - * Now search the rest of the groups. We assume that + * Now search the rest of the groups. We assume that * i and gdp correctly point to the last group visited. */ for (bgi = 0; bgi < ngroups; bgi++) { diff --git a/fs/ext3/bitmap.c b/fs/ext3/bitmap.c index ce4f82b9e528..b9176eed98d1 100644 --- a/fs/ext3/bitmap.c +++ b/fs/ext3/bitmap.c @@ -20,7 +20,7 @@ unsigned long ext3_count_free (struct buffer_head * map, unsigned int numchars) unsigned int i; unsigned long sum = 0; - if (!map) + if (!map) return (0); for (i = 0; i < numchars; i++) sum += nibblemap[map->b_data[i] & 0xf] + diff --git a/fs/ext3/dir.c b/fs/ext3/dir.c index fbb0d4ed07d4..6f9e5a523c87 100644 --- a/fs/ext3/dir.c +++ b/fs/ext3/dir.c @@ -59,7 +59,7 @@ static unsigned char get_dtype(struct super_block *sb, int filetype) return (ext3_filetype_table[filetype]); } - + int ext3_check_dir_entry (const char * function, struct inode * dir, struct ext3_dir_entry_2 * de, @@ -162,7 +162,7 @@ revalidate: * to make sure. */ if (filp->f_version != inode->i_version) { for (i = 0; i < sb->s_blocksize && i < offset; ) { - de = (struct ext3_dir_entry_2 *) + de = (struct ext3_dir_entry_2 *) (bh->b_data + i); /* It's too expensive to do a full * dirent test each time round this @@ -181,7 +181,7 @@ revalidate: filp->f_version = inode->i_version; } - while (!error && filp->f_pos < inode->i_size + while (!error && filp->f_pos < inode->i_size && offset < sb->s_blocksize) { de = (struct ext3_dir_entry_2 *) (bh->b_data + offset); if (!ext3_check_dir_entry ("ext3_readdir", inode, de, @@ -229,7 +229,7 @@ out: /* * These functions convert from the major/minor hash to an f_pos * value. - * + * * Currently we only use major hash numer. This is unfortunate, but * on 32-bit machines, the same VFS interface is used for lseek and * llseek, so if we use the 64 bit offset, then the 32-bit versions of @@ -250,7 +250,7 @@ out: struct fname { __u32 hash; __u32 minor_hash; - struct rb_node rb_hash; + struct rb_node rb_hash; struct fname *next; __u32 inode; __u8 name_len; @@ -410,7 +410,7 @@ static int call_filldir(struct file * filp, void * dirent, curr_pos = hash2pos(fname->hash, fname->minor_hash); while (fname) { error = filldir(dirent, fname->name, - fname->name_len, curr_pos, + fname->name_len, curr_pos, fname->inode, get_dtype(sb, fname->file_type)); if (error) { @@ -465,7 +465,7 @@ static int ext3_dx_readdir(struct file * filp, /* * Fill the rbtree if we have no more entries, * or the inode has changed since we last read in the - * cached entries. + * cached entries. */ if ((!info->curr_node) || (filp->f_version != inode->i_version)) { diff --git a/fs/ext3/file.c b/fs/ext3/file.c index 1efefb630ea9..994efd189f4e 100644 --- a/fs/ext3/file.c +++ b/fs/ext3/file.c @@ -100,7 +100,7 @@ ext3_file_write(struct kiocb *iocb, const char __user *buf, size_t count, loff_t force_commit: err = ext3_force_commit(inode->i_sb); - if (err) + if (err) return err; return ret; } diff --git a/fs/ext3/fsync.c b/fs/ext3/fsync.c index 49382a208e05..dd1fd3c0fc05 100644 --- a/fs/ext3/fsync.c +++ b/fs/ext3/fsync.c @@ -8,14 +8,14 @@ * Universite Pierre et Marie Curie (Paris VI) * from * linux/fs/minix/truncate.c Copyright (C) 1991, 1992 Linus Torvalds - * + * * ext3fs fsync primitive * * Big-endian to little-endian byte-swapping/bitmaps by * David S. Miller (davem@caip.rutgers.edu), 1995 - * + * * Removed unnecessary code duplication for little endian machines - * and excessive __inline__s. + * and excessive __inline__s. * Andi Kleen, 1997 * * Major simplications and cleanup - we only need to do the metadata, because diff --git a/fs/ext3/hash.c b/fs/ext3/hash.c index 5a2d1235ead0..7fa637cd322a 100644 --- a/fs/ext3/hash.c +++ b/fs/ext3/hash.c @@ -4,7 +4,7 @@ * Copyright (C) 2002 by Theodore Ts'o * * This file is released under the GPL v2. - * + * * This file may be redistributed under the terms of the GNU Public * License. */ @@ -80,11 +80,11 @@ static void str2hashbuf(const char *msg, int len, __u32 *buf, int num) * Returns the hash of a filename. If len is 0 and name is NULL, then * this function can be used to test whether or not a hash version is * supported. - * + * * The seed is an 4 longword (32 bits) "secret" which can be used to * uniquify a hash. If the seed is all zero's, then some default seed * may be used. - * + * * A particular hash version specifies whether or not the seed is * represented, and whether or not the returned hash is 32 bits or 64 * bits. 32 bit hashes will return 0 for the minor hash. diff --git a/fs/ext3/ialloc.c b/fs/ext3/ialloc.c index 36546ed36a14..5e288368499b 100644 --- a/fs/ext3/ialloc.c +++ b/fs/ext3/ialloc.c @@ -216,7 +216,7 @@ static int find_group_dir(struct super_block *sb, struct inode *parent) continue; if (le16_to_cpu(desc->bg_free_inodes_count) < avefreei) continue; - if (!best_desc || + if (!best_desc || (le16_to_cpu(desc->bg_free_blocks_count) > le16_to_cpu(best_desc->bg_free_blocks_count))) { best_group = group; @@ -226,30 +226,30 @@ static int find_group_dir(struct super_block *sb, struct inode *parent) return best_group; } -/* - * Orlov's allocator for directories. - * +/* + * Orlov's allocator for directories. + * * We always try to spread first-level directories. * - * If there are blockgroups with both free inodes and free blocks counts - * not worse than average we return one with smallest directory count. - * Otherwise we simply return a random group. - * - * For the rest rules look so: - * - * It's OK to put directory into a group unless - * it has too many directories already (max_dirs) or - * it has too few free inodes left (min_inodes) or - * it has too few free blocks left (min_blocks) or - * it's already running too large debt (max_debt). - * Parent's group is prefered, if it doesn't satisfy these - * conditions we search cyclically through the rest. If none - * of the groups look good we just look for a group with more - * free inodes than average (starting at parent's group). - * - * Debt is incremented each time we allocate a directory and decremented - * when we allocate an inode, within 0--255. - */ + * If there are blockgroups with both free inodes and free blocks counts + * not worse than average we return one with smallest directory count. + * Otherwise we simply return a random group. + * + * For the rest rules look so: + * + * It's OK to put directory into a group unless + * it has too many directories already (max_dirs) or + * it has too few free inodes left (min_inodes) or + * it has too few free blocks left (min_blocks) or + * it's already running too large debt (max_debt). + * Parent's group is prefered, if it doesn't satisfy these + * conditions we search cyclically through the rest. If none + * of the groups look good we just look for a group with more + * free inodes than average (starting at parent's group). + * + * Debt is incremented each time we allocate a directory and decremented + * when we allocate an inode, within 0--255. + */ #define INODE_COST 64 #define BLOCK_COST 256 @@ -454,7 +454,7 @@ struct inode *ext3_new_inode(handle_t *handle, struct inode * dir, int mode) group = find_group_dir(sb, dir); else group = find_group_orlov(sb, dir); - } else + } else group = find_group_other(sb, dir); err = -ENOSPC; diff --git a/fs/ext3/inode.c b/fs/ext3/inode.c index 84be02e93652..473d206b1d7e 100644 --- a/fs/ext3/inode.c +++ b/fs/ext3/inode.c @@ -55,7 +55,7 @@ static int ext3_inode_is_fast_symlink(struct inode *inode) /* * The ext3 forget function must perform a revoke if we are freeing data * which has been journaled. Metadata (eg. indirect blocks) must be - * revoked in all cases. + * revoked in all cases. * * "bh" may be NULL: a metadata block may have been freed from memory * but there may still be a record of it in the journal, and that record @@ -105,7 +105,7 @@ int ext3_forget(handle_t *handle, int is_metadata, struct inode *inode, * Work out how many blocks we need to proceed with the next chunk of a * truncate transaction. */ -static unsigned long blocks_for_truncate(struct inode *inode) +static unsigned long blocks_for_truncate(struct inode *inode) { unsigned long needed; @@ -122,13 +122,13 @@ static unsigned long blocks_for_truncate(struct inode *inode) /* But we need to bound the transaction so we don't overflow the * journal. */ - if (needed > EXT3_MAX_TRANS_DATA) + if (needed > EXT3_MAX_TRANS_DATA) needed = EXT3_MAX_TRANS_DATA; return EXT3_DATA_TRANS_BLOCKS(inode->i_sb) + needed; } -/* +/* * Truncate transactions can be complex and absolutely huge. So we need to * be able to restart the transaction at a conventient checkpoint to make * sure we don't overflow the journal. @@ -136,9 +136,9 @@ static unsigned long blocks_for_truncate(struct inode *inode) * start_transaction gets us a new handle for a truncate transaction, * and extend_transaction tries to extend the existing one a bit. If * extend fails, we need to propagate the failure up and restart the - * transaction in the top-level truncate loop. --sct + * transaction in the top-level truncate loop. --sct */ -static handle_t *start_transaction(struct inode *inode) +static handle_t *start_transaction(struct inode *inode) { handle_t *result; @@ -215,12 +215,12 @@ void ext3_delete_inode (struct inode * inode) ext3_orphan_del(handle, inode); EXT3_I(inode)->i_dtime = get_seconds(); - /* + /* * One subtle ordering requirement: if anything has gone wrong * (transaction abort, IO errors, whatever), then we can still * do these next steps (the fs will already have been marked as * having errors), but we can't free the inode if the mark_dirty - * fails. + * fails. */ if (ext3_mark_inode_dirty(handle, inode)) /* If that failed, just do the required in-core inode clear. */ @@ -398,7 +398,7 @@ no_block: * + if there is a block to the left of our position - allocate near it. * + if pointer will live in indirect block - allocate near that block. * + if pointer will live in inode - allocate in the same - * cylinder group. + * cylinder group. * * In the latter case we colour the starting block by the callers PID to * prevent it from clashing with concurrent allocations for a different inode @@ -744,7 +744,7 @@ static int ext3_splice_branch(handle_t *handle, struct inode *inode, jbd_debug(5, "splicing indirect only\n"); BUFFER_TRACE(where->bh, "call ext3_journal_dirty_metadata"); err = ext3_journal_dirty_metadata(handle, where->bh); - if (err) + if (err) goto err_out; } else { /* @@ -1137,7 +1137,7 @@ static int walk_page_buffers( handle_t *handle, * So what we do is to rely on the fact that journal_stop/journal_start * will _not_ run commit under these circumstances because handle->h_ref * is elevated. We'll still have enough credits for the tiny quotafile - * write. + * write. */ static int do_journal_get_write_access(handle_t *handle, struct buffer_head *bh) @@ -1282,7 +1282,7 @@ static int ext3_journalled_commit_write(struct file *file, if (inode->i_size > EXT3_I(inode)->i_disksize) { EXT3_I(inode)->i_disksize = inode->i_size; ret2 = ext3_mark_inode_dirty(handle, inode); - if (!ret) + if (!ret) ret = ret2; } ret2 = ext3_journal_stop(handle); @@ -1291,7 +1291,7 @@ static int ext3_journalled_commit_write(struct file *file, return ret; } -/* +/* * bmap() is special. It gets used by applications such as lilo and by * the swapper to find the on-disk block of a specific piece of data. * @@ -1300,10 +1300,10 @@ static int ext3_journalled_commit_write(struct file *file, * filesystem and enables swap, then they may get a nasty shock when the * data getting swapped to that swapfile suddenly gets overwritten by * the original zero's written out previously to the journal and - * awaiting writeback in the kernel's buffer cache. + * awaiting writeback in the kernel's buffer cache. * * So, if we see any bmap calls here on a modified, data-journaled file, - * take extra steps to flush any blocks which might be in the cache. + * take extra steps to flush any blocks which might be in the cache. */ static sector_t ext3_bmap(struct address_space *mapping, sector_t block) { @@ -1312,16 +1312,16 @@ static sector_t ext3_bmap(struct address_space *mapping, sector_t block) int err; if (EXT3_I(inode)->i_state & EXT3_STATE_JDATA) { - /* + /* * This is a REALLY heavyweight approach, but the use of * bmap on dirty files is expected to be extremely rare: * only if we run lilo or swapon on a freshly made file - * do we expect this to happen. + * do we expect this to happen. * * (bmap requires CAP_SYS_RAWIO so this does not * represent an unprivileged user DOS attack --- we'd be * in trouble if mortal users could trigger this path at - * will.) + * will.) * * NB. EXT3_STATE_JDATA is not set on files other than * regular files. If somebody wants to bmap a directory @@ -1457,7 +1457,7 @@ static int ext3_ordered_writepage(struct page *page, */ /* - * And attach them to the current transaction. But only if + * And attach them to the current transaction. But only if * block_write_full_page() succeeded. Otherwise they are unmapped, * and generally junk. */ @@ -1644,7 +1644,7 @@ static ssize_t ext3_direct_IO(int rw, struct kiocb *iocb, } } - ret = blockdev_direct_IO(rw, iocb, inode, inode->i_sb->s_bdev, iov, + ret = blockdev_direct_IO(rw, iocb, inode, inode->i_sb->s_bdev, iov, offset, nr_segs, ext3_get_block, NULL); @@ -2025,7 +2025,7 @@ static void ext3_free_data(handle_t *handle, struct inode *inode, __le32 *first, __le32 *last) { ext3_fsblk_t block_to_free = 0; /* Starting block # of a run */ - unsigned long count = 0; /* Number of blocks in the run */ + unsigned long count = 0; /* Number of blocks in the run */ __le32 *block_to_free_p = NULL; /* Pointer into inode/ind corresponding to block_to_free */ @@ -2054,7 +2054,7 @@ static void ext3_free_data(handle_t *handle, struct inode *inode, } else if (nr == block_to_free + count) { count++; } else { - ext3_clear_blocks(handle, inode, this_bh, + ext3_clear_blocks(handle, inode, this_bh, block_to_free, count, block_to_free_p, p); block_to_free = nr; @@ -2184,7 +2184,7 @@ static void ext3_free_branches(handle_t *handle, struct inode *inode, *p = 0; BUFFER_TRACE(parent_bh, "call ext3_journal_dirty_metadata"); - ext3_journal_dirty_metadata(handle, + ext3_journal_dirty_metadata(handle, parent_bh); } } @@ -2704,7 +2704,7 @@ void ext3_read_inode(struct inode * inode) if (raw_inode->i_block[0]) init_special_inode(inode, inode->i_mode, old_decode_dev(le32_to_cpu(raw_inode->i_block[0]))); - else + else init_special_inode(inode, inode->i_mode, new_decode_dev(le32_to_cpu(raw_inode->i_block[1]))); } @@ -2724,8 +2724,8 @@ bad_inode: * * The caller must have write access to iloc->bh. */ -static int ext3_do_update_inode(handle_t *handle, - struct inode *inode, +static int ext3_do_update_inode(handle_t *handle, + struct inode *inode, struct ext3_iloc *iloc) { struct ext3_inode *raw_inode = ext3_raw_inode(iloc); @@ -2900,7 +2900,7 @@ int ext3_write_inode(struct inode *inode, int wait) * commit will leave the blocks being flushed in an unused state on * disk. (On recovery, the inode will get truncated and the blocks will * be freed, so we have a strong guarantee that no future commit will - * leave these blocks visible to the user.) + * leave these blocks visible to the user.) * * Called with inode->sem down. */ @@ -3043,13 +3043,13 @@ int ext3_mark_iloc_dirty(handle_t *handle, return err; } -/* +/* * On success, We end up with an outstanding reference count against - * iloc->bh. This _must_ be cleaned up later. + * iloc->bh. This _must_ be cleaned up later. */ int -ext3_reserve_inode_write(handle_t *handle, struct inode *inode, +ext3_reserve_inode_write(handle_t *handle, struct inode *inode, struct ext3_iloc *iloc) { int err = 0; @@ -3139,7 +3139,7 @@ out: } #if 0 -/* +/* * Bind an inode's backing buffer_head into this transaction, to prevent * it from being flushed to disk early. Unlike * ext3_reserve_inode_write, this leaves behind no bh reference and @@ -3157,7 +3157,7 @@ static int ext3_pin_inode(handle_t *handle, struct inode *inode) BUFFER_TRACE(iloc.bh, "get_write_access"); err = journal_get_write_access(handle, iloc.bh); if (!err) - err = ext3_journal_dirty_metadata(handle, + err = ext3_journal_dirty_metadata(handle, iloc.bh); brelse(iloc.bh); } diff --git a/fs/ext3/namei.c b/fs/ext3/namei.c index 2aa7101b27cd..4123f5261bcd 100644 --- a/fs/ext3/namei.c +++ b/fs/ext3/namei.c @@ -76,7 +76,7 @@ static struct buffer_head *ext3_append(handle_t *handle, #ifdef DX_DEBUG #define dxtrace(command) command #else -#define dxtrace(command) +#define dxtrace(command) #endif struct fake_dirent @@ -169,7 +169,7 @@ static struct ext3_dir_entry_2* dx_pack_dirents (char *base, int size); static void dx_insert_block (struct dx_frame *frame, u32 hash, u32 block); static int ext3_htree_next_block(struct inode *dir, __u32 hash, struct dx_frame *frame, - struct dx_frame *frames, + struct dx_frame *frames, __u32 *start_hash); static struct buffer_head * ext3_dx_find_entry(struct dentry *dentry, struct ext3_dir_entry_2 **res_dir, int *err); @@ -250,7 +250,7 @@ static void dx_show_index (char * label, struct dx_entry *entries) } struct stats -{ +{ unsigned names; unsigned space; unsigned bcount; @@ -464,7 +464,7 @@ static void dx_release (struct dx_frame *frames) */ static int ext3_htree_next_block(struct inode *dir, __u32 hash, struct dx_frame *frame, - struct dx_frame *frames, + struct dx_frame *frames, __u32 *start_hash) { struct dx_frame *p; @@ -632,7 +632,7 @@ int ext3_htree_fill_tree(struct file *dir_file, __u32 start_hash, } count += ret; hashval = ~0; - ret = ext3_htree_next_block(dir, HASH_NB_ALWAYS, + ret = ext3_htree_next_block(dir, HASH_NB_ALWAYS, frame, frames, &hashval); *next_hash = hashval; if (ret < 0) { @@ -649,7 +649,7 @@ int ext3_htree_fill_tree(struct file *dir_file, __u32 start_hash, break; } dx_release(frames); - dxtrace(printk("Fill tree: returned %d entries, next hash: %x\n", + dxtrace(printk("Fill tree: returned %d entries, next hash: %x\n", count, *next_hash)); return count; errout: @@ -1050,7 +1050,7 @@ struct dentry *ext3_get_parent(struct dentry *child) parent = ERR_PTR(-ENOMEM); } return parent; -} +} #define S_SHIFT 12 static unsigned char ext3_type_by_mode[S_IFMT >> S_SHIFT] = { @@ -1198,7 +1198,7 @@ errout: * add_dirent_to_buf will attempt search the directory block for * space. It will return -ENOSPC if no space is available, and -EIO * and -EEXIST if directory entry already exists. - * + * * NOTE! bh is NOT released in the case where ENOSPC is returned. In * all other cases bh is released. */ @@ -1572,7 +1572,7 @@ cleanup: * ext3_delete_entry deletes a directory entry by merging it with the * previous entry */ -static int ext3_delete_entry (handle_t *handle, +static int ext3_delete_entry (handle_t *handle, struct inode * dir, struct ext3_dir_entry_2 * de_del, struct buffer_head * bh) @@ -1643,12 +1643,12 @@ static int ext3_add_nondir(handle_t *handle, * is so far negative - it has no inode. * * If the create succeeds, we fill in the inode information - * with d_instantiate(). + * with d_instantiate(). */ static int ext3_create (struct inode * dir, struct dentry * dentry, int mode, struct nameidata *nd) { - handle_t *handle; + handle_t *handle; struct inode * inode; int err, retries = 0; @@ -1813,7 +1813,7 @@ static int empty_dir (struct inode * inode) de1 = (struct ext3_dir_entry_2 *) ((char *) de + le16_to_cpu(de->rec_len)); if (le32_to_cpu(de->inode) != inode->i_ino || - !le32_to_cpu(de1->inode) || + !le32_to_cpu(de1->inode) || strcmp (".", de->name) || strcmp ("..", de1->name)) { ext3_warning (inode->i_sb, "empty_dir", @@ -1883,7 +1883,7 @@ int ext3_orphan_add(handle_t *handle, struct inode *inode) * being truncated, or files being unlinked. */ /* @@@ FIXME: Observation from aviro: - * I think I can trigger J_ASSERT in ext3_orphan_add(). We block + * I think I can trigger J_ASSERT in ext3_orphan_add(). We block * here (on lock_super()), so race with ext3_link() which might bump * ->i_nlink. For, say it, character device. Not a regular file, * not a directory, not a symlink and ->i_nlink > 0. @@ -2393,4 +2393,4 @@ struct inode_operations ext3_special_inode_operations = { .removexattr = generic_removexattr, #endif .permission = ext3_permission, -}; +}; diff --git a/fs/ext3/super.c b/fs/ext3/super.c index 3559086eee5f..4b95bfe4c8f7 100644 --- a/fs/ext3/super.c +++ b/fs/ext3/super.c @@ -62,13 +62,13 @@ static void ext3_unlockfs(struct super_block *sb); static void ext3_write_super (struct super_block * sb); static void ext3_write_super_lockfs(struct super_block *sb); -/* +/* * Wrappers for journal_start/end. * * The only special thing we need to do here is to make sure that all * journal_end calls result in the superblock being marked dirty, so * that sync() will call the filesystem's write_super callback if - * appropriate. + * appropriate. */ handle_t *ext3_journal_start_sb(struct super_block *sb, int nblocks) { @@ -90,11 +90,11 @@ handle_t *ext3_journal_start_sb(struct super_block *sb, int nblocks) return journal_start(journal, nblocks); } -/* +/* * The only special thing we need to do here is to make sure that all * journal_stop calls result in the superblock being marked dirty, so * that sync() will call the filesystem's write_super callback if - * appropriate. + * appropriate. */ int __ext3_journal_stop(const char *where, handle_t *handle) { @@ -369,7 +369,7 @@ static void dump_orphan_list(struct super_block *sb, struct ext3_sb_info *sbi) { struct list_head *l; - printk(KERN_ERR "sb orphan head is %d\n", + printk(KERN_ERR "sb orphan head is %d\n", le32_to_cpu(sbi->s_es->s_last_orphan)); printk(KERN_ERR "sb_info orphan list:\n"); @@ -378,7 +378,7 @@ static void dump_orphan_list(struct super_block *sb, struct ext3_sb_info *sbi) printk(KERN_ERR " " "inode %s:%ld at %p: mode %o, nlink %d, next %d\n", inode->i_sb->s_id, inode->i_ino, inode, - inode->i_mode, inode->i_nlink, + inode->i_mode, inode->i_nlink, NEXT_ORPHAN(inode)); } } @@ -475,7 +475,7 @@ static void init_once(void * foo, kmem_cache_t * cachep, unsigned long flags) inode_init_once(&ei->vfs_inode); } } - + static int init_inodecache(void) { ext3_inode_cachep = kmem_cache_create("ext3_inode_cache", @@ -1483,7 +1483,7 @@ static int ext3_fill_super (struct super_block *sb, void *data, int silent) (EXT3_HAS_COMPAT_FEATURE(sb, ~0U) || EXT3_HAS_RO_COMPAT_FEATURE(sb, ~0U) || EXT3_HAS_INCOMPAT_FEATURE(sb, ~0U))) - printk(KERN_WARNING + printk(KERN_WARNING "EXT3-fs warning: feature flags set on rev 0 fs, " "running e2fsck is recommended\n"); /* @@ -1509,7 +1509,7 @@ static int ext3_fill_super (struct super_block *sb, void *data, int silent) if (blocksize < EXT3_MIN_BLOCK_SIZE || blocksize > EXT3_MAX_BLOCK_SIZE) { - printk(KERN_ERR + printk(KERN_ERR "EXT3-fs: Unsupported filesystem blocksize %d on %s.\n", blocksize, sb->s_id); goto failed_mount; @@ -1533,14 +1533,14 @@ static int ext3_fill_super (struct super_block *sb, void *data, int silent) offset = (sb_block * EXT3_MIN_BLOCK_SIZE) % blocksize; bh = sb_bread(sb, logic_sb_block); if (!bh) { - printk(KERN_ERR + printk(KERN_ERR "EXT3-fs: Can't read superblock on 2nd try.\n"); goto failed_mount; } es = (struct ext3_super_block *)(((char *)bh->b_data) + offset); sbi->s_es = es; if (es->s_magic != cpu_to_le16(EXT3_SUPER_MAGIC)) { - printk (KERN_ERR + printk (KERN_ERR "EXT3-fs: Magic mismatch, very weird !\n"); goto failed_mount; } @@ -1820,7 +1820,7 @@ out_fail: /* * Setup any per-fs journal parameters now. We'll do this both on * initial mount, once the journal has been initialised but before we've - * done any recovery; and again on any subsequent remount. + * done any recovery; and again on any subsequent remount. */ static void ext3_init_journal_params(struct super_block *sb, journal_t *journal) { diff --git a/fs/jbd/checkpoint.c b/fs/jbd/checkpoint.c index d0685596e5a6..961ada28db5e 100644 --- a/fs/jbd/checkpoint.c +++ b/fs/jbd/checkpoint.c @@ -1,6 +1,6 @@ /* * linux/fs/checkpoint.c - * + * * Written by Stephen C. Tweedie , 1999 * * Copyright 1999 Red Hat Software --- All Rights Reserved @@ -9,8 +9,8 @@ * the terms of the GNU General Public License, version 2, or at your * option, any later version, incorporated herein by reference. * - * Checkpoint routines for the generic filesystem journaling code. - * Part of the ext2fs journaling system. + * Checkpoint routines for the generic filesystem journaling code. + * Part of the ext2fs journaling system. * * Checkpointing is the process of ensuring that a section of the log is * committed fully to disk, so that that portion of the log can be @@ -226,7 +226,7 @@ __flush_batch(journal_t *journal, struct buffer_head **bhs, int *batch_count) * Try to flush one buffer from the checkpoint list to disk. * * Return 1 if something happened which requires us to abort the current - * scan of the checkpoint list. + * scan of the checkpoint list. * * Called with j_list_lock held and drops it if 1 is returned * Called under jbd_lock_bh_state(jh2bh(jh)), and drops it @@ -270,7 +270,7 @@ static int __process_buffer(journal_t *journal, struct journal_head *jh, * possibly block, while still holding the journal lock. * We cannot afford to let the transaction logic start * messing around with this buffer before we write it to - * disk, as that would break recoverability. + * disk, as that would break recoverability. */ BUFFER_TRACE(bh, "queue"); get_bh(bh); @@ -293,7 +293,7 @@ static int __process_buffer(journal_t *journal, struct journal_head *jh, * Perform an actual checkpoint. We take the first transaction on the * list of transactions to be checkpointed and send all its buffers * to disk. We submit larger chunks of data at once. - * + * * The journal should be locked before calling this function. */ int log_do_checkpoint(journal_t *journal) @@ -304,10 +304,10 @@ int log_do_checkpoint(journal_t *journal) jbd_debug(1, "Start checkpoint\n"); - /* + /* * First thing: if there are any transactions in the log which * don't need checkpointing, just eliminate them from the - * journal straight away. + * journal straight away. */ result = cleanup_journal_tail(journal); jbd_debug(1, "cleanup_journal_tail returned %d\n", result); @@ -385,9 +385,9 @@ out: * we have already got rid of any since the last update of the log tail * in the journal superblock. If so, we can instantly roll the * superblock forward to remove those transactions from the log. - * + * * Return <0 on error, 0 on success, 1 if there was nothing to clean up. - * + * * Called with the journal lock held. * * This is the only part of the journaling code which really needs to be @@ -404,8 +404,8 @@ int cleanup_journal_tail(journal_t *journal) unsigned long blocknr, freed; /* OK, work out the oldest transaction remaining in the log, and - * the log block it starts at. - * + * the log block it starts at. + * * If the log is now empty, we need to work out which is the * next transaction ID we will write, and where it will * start. */ @@ -558,7 +558,7 @@ out: return ret; } -/* +/* * journal_remove_checkpoint: called after a buffer has been committed * to disk (either by being write-back flushed to disk, or being * committed to the log). @@ -636,7 +636,7 @@ out: * Called with the journal locked. * Called with j_list_lock held. */ -void __journal_insert_checkpoint(struct journal_head *jh, +void __journal_insert_checkpoint(struct journal_head *jh, transaction_t *transaction) { JBUFFER_TRACE(jh, "entry"); @@ -658,7 +658,7 @@ void __journal_insert_checkpoint(struct journal_head *jh, /* * We've finished with this transaction structure: adios... - * + * * The transaction must have no links except for the checkpoint by this * point. * diff --git a/fs/jbd/journal.c b/fs/jbd/journal.c index f66724ce443a..87c5a6d00805 100644 --- a/fs/jbd/journal.c +++ b/fs/jbd/journal.c @@ -578,7 +578,7 @@ int journal_next_log_block(journal_t *journal, unsigned long *retp) * this is a no-op. If needed, we can use j_blk_offset - everything is * ready. */ -int journal_bmap(journal_t *journal, unsigned long blocknr, +int journal_bmap(journal_t *journal, unsigned long blocknr, unsigned long *retp) { int err = 0; @@ -699,10 +699,10 @@ fail: * @len: Lenght of the journal in blocks. * @blocksize: blocksize of journalling device * @returns: a newly created journal_t * - * + * * journal_init_dev creates a journal which maps a fixed contiguous * range of blocks on an arbitrary block device. - * + * */ journal_t * journal_init_dev(struct block_device *bdev, struct block_device *fs_dev, @@ -739,11 +739,11 @@ journal_t * journal_init_dev(struct block_device *bdev, return journal; } - -/** + +/** * journal_t * journal_init_inode () - creates a journal which maps to a inode. * @inode: An inode to create the journal in - * + * * journal_init_inode creates a journal which maps an on-disk inode as * the journal. The inode must exist already, must support bmap() and * must have all data blocks preallocated. @@ -763,7 +763,7 @@ journal_t * journal_init_inode (struct inode *inode) journal->j_inode = inode; jbd_debug(1, "journal %p: inode %s/%ld, size %Ld, bits %d, blksize %ld\n", - journal, inode->i_sb->s_id, inode->i_ino, + journal, inode->i_sb->s_id, inode->i_ino, (long long) inode->i_size, inode->i_sb->s_blocksize_bits, inode->i_sb->s_blocksize); @@ -798,10 +798,10 @@ journal_t * journal_init_inode (struct inode *inode) return journal; } -/* +/* * If the journal init or create aborts, we need to mark the journal * superblock as being NULL to prevent the journal destroy from writing - * back a bogus superblock. + * back a bogus superblock. */ static void journal_fail_superblock (journal_t *journal) { @@ -844,13 +844,13 @@ static int journal_reset(journal_t *journal) return 0; } -/** +/** * int journal_create() - Initialise the new journal file * @journal: Journal to create. This structure must have been initialised - * + * * Given a journal_t structure which tells us which disk blocks we can * use, create a new journal superblock and initialise all of the - * journal fields from scratch. + * journal fields from scratch. **/ int journal_create(journal_t *journal) { @@ -915,7 +915,7 @@ int journal_create(journal_t *journal) return journal_reset(journal); } -/** +/** * void journal_update_superblock() - Update journal sb on disk. * @journal: The journal to update. * @wait: Set to '0' if you don't want to wait for IO completion. @@ -939,7 +939,7 @@ void journal_update_superblock(journal_t *journal, int wait) journal->j_transaction_sequence) { jbd_debug(1,"JBD: Skipping superblock update on recovered sb " "(start %ld, seq %d, errno %d)\n", - journal->j_tail, journal->j_tail_sequence, + journal->j_tail, journal->j_tail_sequence, journal->j_errno); goto out; } @@ -1062,7 +1062,7 @@ static int load_superblock(journal_t *journal) /** * int journal_load() - Read journal from disk. * @journal: Journal to act on. - * + * * Given a journal_t structure which tells us which disk blocks contain * a journal, read the journal from disk to initialise the in-memory * structures. @@ -1172,9 +1172,9 @@ void journal_destroy(journal_t *journal) * @compat: bitmask of compatible features * @ro: bitmask of features that force read-only mount * @incompat: bitmask of incompatible features - * + * * Check whether the journal uses all of a given set of - * features. Return true (non-zero) if it does. + * features. Return true (non-zero) if it does. **/ int journal_check_used_features (journal_t *journal, unsigned long compat, @@ -1203,7 +1203,7 @@ int journal_check_used_features (journal_t *journal, unsigned long compat, * @compat: bitmask of compatible features * @ro: bitmask of features that force read-only mount * @incompat: bitmask of incompatible features - * + * * Check whether the journaling code supports the use of * all of a given set of features on this journal. Return true * (non-zero) if it can. */ @@ -1241,7 +1241,7 @@ int journal_check_available_features (journal_t *journal, unsigned long compat, * @incompat: bitmask of incompatible features * * Mark a given journal feature as present on the - * superblock. Returns true if the requested features could be set. + * superblock. Returns true if the requested features could be set. * */ @@ -1327,7 +1327,7 @@ static int journal_convert_superblock_v1(journal_t *journal, /** * int journal_flush () - Flush journal * @journal: Journal to act on. - * + * * Flush all data for a given journal to disk and empty the journal. * Filesystems can use this when remounting readonly to ensure that * recovery does not need to happen on remount. @@ -1394,7 +1394,7 @@ int journal_flush(journal_t *journal) * int journal_wipe() - Wipe journal contents * @journal: Journal to act on. * @write: flag (see below) - * + * * Wipe out all of the contents of a journal, safely. This will produce * a warning if the journal contains any valid recovery information. * Must be called between journal_init_*() and journal_load(). @@ -1449,7 +1449,7 @@ static const char *journal_dev_name(journal_t *journal, char *buffer) /* * Journal abort has very specific semantics, which we describe - * for journal abort. + * for journal abort. * * Two internal function, which provide abort to te jbd layer * itself are here. @@ -1504,7 +1504,7 @@ static void __journal_abort_soft (journal_t *journal, int errno) * Perform a complete, immediate shutdown of the ENTIRE * journal (not of a single transaction). This operation cannot be * undone without closing and reopening the journal. - * + * * The journal_abort function is intended to support higher level error * recovery mechanisms such as the ext2/ext3 remount-readonly error * mode. @@ -1538,7 +1538,7 @@ static void __journal_abort_soft (journal_t *journal, int errno) * supply an errno; a null errno implies that absolutely no further * writes are done to the journal (unless there are any already in * progress). - * + * */ void journal_abort(journal_t *journal, int errno) @@ -1546,7 +1546,7 @@ void journal_abort(journal_t *journal, int errno) __journal_abort_soft(journal, errno); } -/** +/** * int journal_errno () - returns the journal's error state. * @journal: journal to examine. * @@ -1570,7 +1570,7 @@ int journal_errno(journal_t *journal) return err; } -/** +/** * int journal_clear_err () - clears the journal's error state * @journal: journal to act on. * @@ -1590,7 +1590,7 @@ int journal_clear_err(journal_t *journal) return err; } -/** +/** * void journal_ack_err() - Ack journal err. * @journal: journal to act on. * @@ -1612,7 +1612,7 @@ int journal_blocks_per_page(struct inode *inode) /* * Simple support for retrying memory allocations. Introduced to help to - * debug different VM deadlock avoidance strategies. + * debug different VM deadlock avoidance strategies. */ void * __jbd_kmalloc (const char *where, size_t size, gfp_t flags, int retry) { diff --git a/fs/jbd/recovery.c b/fs/jbd/recovery.c index de5bafb4e853..73bb64806ed3 100644 --- a/fs/jbd/recovery.c +++ b/fs/jbd/recovery.c @@ -1,6 +1,6 @@ /* * linux/fs/recovery.c - * + * * Written by Stephen C. Tweedie , 1999 * * Copyright 1999-2000 Red Hat Software --- All Rights Reserved @@ -10,7 +10,7 @@ * option, any later version, incorporated herein by reference. * * Journal recovery routines for the generic filesystem journaling code; - * part of the ext2fs journaling system. + * part of the ext2fs journaling system. */ #ifndef __KERNEL__ @@ -25,9 +25,9 @@ /* * Maintain information about the progress of the recovery job, so that - * the different passes can carry information between them. + * the different passes can carry information between them. */ -struct recovery_info +struct recovery_info { tid_t start_transaction; tid_t end_transaction; @@ -116,7 +116,7 @@ static int do_readahead(journal_t *journal, unsigned int start) err = 0; failed: - if (nbufs) + if (nbufs) journal_brelse_array(bufs, nbufs); return err; } @@ -128,7 +128,7 @@ failed: * Read a block from the journal */ -static int jread(struct buffer_head **bhp, journal_t *journal, +static int jread(struct buffer_head **bhp, journal_t *journal, unsigned int offset) { int err; @@ -212,14 +212,14 @@ do { \ /** * journal_recover - recovers a on-disk journal * @journal: the journal to recover - * + * * The primary function for recovering the log contents when mounting a - * journaled device. + * journaled device. * * Recovery is done in three passes. In the first pass, we look for the * end of the log. In the second, we assemble the list of revoke * blocks. In the third and final pass, we replay any un-revoked blocks - * in the log. + * in the log. */ int journal_recover(journal_t *journal) { @@ -231,10 +231,10 @@ int journal_recover(journal_t *journal) memset(&info, 0, sizeof(info)); sb = journal->j_superblock; - /* + /* * The journal superblock's s_start field (the current log head) * is always zero if, and only if, the journal was cleanly - * unmounted. + * unmounted. */ if (!sb->s_start) { @@ -253,7 +253,7 @@ int journal_recover(journal_t *journal) jbd_debug(0, "JBD: recovery, exit status %d, " "recovered transactions %u to %u\n", err, info.start_transaction, info.end_transaction); - jbd_debug(0, "JBD: Replayed %d and revoked %d/%d blocks\n", + jbd_debug(0, "JBD: Replayed %d and revoked %d/%d blocks\n", info.nr_replays, info.nr_revoke_hits, info.nr_revokes); /* Restart the log at the next transaction ID, thus invalidating @@ -268,15 +268,15 @@ int journal_recover(journal_t *journal) /** * journal_skip_recovery - Start journal and wipe exiting records * @journal: journal to startup - * + * * Locate any valid recovery information from the journal and set up the * journal structures in memory to ignore it (presumably because the - * caller has evidence that it is out of date). + * caller has evidence that it is out of date). * This function does'nt appear to be exorted.. * * We perform one pass over the journal to allow us to tell the user how * much recovery information is being erased, and to let us initialise - * the journal transaction sequence numbers to the next unused ID. + * the journal transaction sequence numbers to the next unused ID. */ int journal_skip_recovery(journal_t *journal) { @@ -297,7 +297,7 @@ int journal_skip_recovery(journal_t *journal) #ifdef CONFIG_JBD_DEBUG int dropped = info.end_transaction - be32_to_cpu(sb->s_sequence); #endif - jbd_debug(0, + jbd_debug(0, "JBD: ignoring %d transaction%s from the journal.\n", dropped, (dropped == 1) ? "" : "s"); journal->j_transaction_sequence = ++info.end_transaction; @@ -324,10 +324,10 @@ static int do_one_pass(journal_t *journal, MAX_BLOCKS_PER_DESC = ((journal->j_blocksize-sizeof(journal_header_t)) / sizeof(journal_block_tag_t)); - /* + /* * First thing is to establish what we expect to find in the log * (in terms of transaction IDs), and where (in terms of log - * block offsets): query the superblock. + * block offsets): query the superblock. */ sb = journal->j_superblock; @@ -344,7 +344,7 @@ static int do_one_pass(journal_t *journal, * Now we walk through the log, transaction by transaction, * making sure that each transaction has a commit block in the * expected place. Each complete transaction gets replayed back - * into the main filesystem. + * into the main filesystem. */ while (1) { @@ -379,8 +379,8 @@ static int do_one_pass(journal_t *journal, next_log_block++; wrap(journal, next_log_block); - /* What kind of buffer is it? - * + /* What kind of buffer is it? + * * If it is a descriptor block, check that it has the * expected sequence number. Otherwise, we're all done * here. */ @@ -394,7 +394,7 @@ static int do_one_pass(journal_t *journal, blocktype = be32_to_cpu(tmp->h_blocktype); sequence = be32_to_cpu(tmp->h_sequence); - jbd_debug(3, "Found magic %d, sequence %d\n", + jbd_debug(3, "Found magic %d, sequence %d\n", blocktype, sequence); if (sequence != next_commit_ID) { @@ -438,7 +438,7 @@ static int do_one_pass(journal_t *journal, /* Recover what we can, but * report failure at the end. */ success = err; - printk (KERN_ERR + printk (KERN_ERR "JBD: IO error %d recovering " "block %ld in log\n", err, io_block); @@ -452,7 +452,7 @@ static int do_one_pass(journal_t *journal, * revoked, then we're all done * here. */ if (journal_test_revoke - (journal, blocknr, + (journal, blocknr, next_commit_ID)) { brelse(obh); ++info->nr_revoke_hits; @@ -465,7 +465,7 @@ static int do_one_pass(journal_t *journal, blocknr, journal->j_blocksize); if (nbh == NULL) { - printk(KERN_ERR + printk(KERN_ERR "JBD: Out of memory " "during recovery.\n"); err = -ENOMEM; @@ -537,7 +537,7 @@ static int do_one_pass(journal_t *journal, } done: - /* + /* * We broke out of the log scan loop: either we came to the * known end of the log or we found an unexpected block in the * log. If the latter happened, then we know that the "current" @@ -567,7 +567,7 @@ static int do_one_pass(journal_t *journal, /* Scan a revoke record, marking all blocks mentioned as revoked. */ -static int scan_revoke_records(journal_t *journal, struct buffer_head *bh, +static int scan_revoke_records(journal_t *journal, struct buffer_head *bh, tid_t sequence, struct recovery_info *info) { journal_revoke_header_t *header; diff --git a/fs/jbd/revoke.c b/fs/jbd/revoke.c index a56144183462..c532429d8d9b 100644 --- a/fs/jbd/revoke.c +++ b/fs/jbd/revoke.c @@ -1,6 +1,6 @@ /* * linux/fs/revoke.c - * + * * Written by Stephen C. Tweedie , 2000 * * Copyright 2000 Red Hat corp --- All Rights Reserved @@ -15,10 +15,10 @@ * Revoke is the mechanism used to prevent old log records for deleted * metadata from being replayed on top of newer data using the same * blocks. The revoke mechanism is used in two separate places: - * + * * + Commit: during commit we write the entire list of the current * transaction's revoked blocks to the journal - * + * * + Recovery: during recovery we record the transaction ID of all * revoked blocks. If there are multiple revoke records in the log * for a single block, only the last one counts, and if there is a log @@ -29,7 +29,7 @@ * single transaction: * * Block is revoked and then journaled: - * The desired end result is the journaling of the new block, so we + * The desired end result is the journaling of the new block, so we * cancel the revoke before the transaction commits. * * Block is journaled and then revoked: @@ -41,7 +41,7 @@ * transaction must have happened after the block was journaled and so * the revoke must take precedence. * - * Block is revoked and then written as data: + * Block is revoked and then written as data: * The data write is allowed to succeed, but the revoke is _not_ * cancelled. We still need to prevent old log records from * overwriting the new data. We don't even need to clear the revoke @@ -54,7 +54,7 @@ * buffer has not been revoked, and cancel_revoke * need do nothing. * RevokeValid set, Revoked set: - * buffer has been revoked. + * buffer has been revoked. */ #ifndef __KERNEL__ @@ -77,7 +77,7 @@ static kmem_cache_t *revoke_table_cache; journal replay, this involves recording the transaction ID of the last transaction to revoke this block. */ -struct jbd_revoke_record_s +struct jbd_revoke_record_s { struct list_head hash; tid_t sequence; /* Used for recovery only */ @@ -90,8 +90,8 @@ struct jbd_revoke_table_s { /* It is conceivable that we might want a larger hash table * for recovery. Must be a power of two. */ - int hash_size; - int hash_shift; + int hash_size; + int hash_shift; struct list_head *hash_table; }; @@ -301,22 +301,22 @@ void journal_destroy_revoke(journal_t *journal) #ifdef __KERNEL__ -/* +/* * journal_revoke: revoke a given buffer_head from the journal. This * prevents the block from being replayed during recovery if we take a * crash after this current transaction commits. Any subsequent * metadata writes of the buffer in this transaction cancel the - * revoke. + * revoke. * * Note that this call may block --- it is up to the caller to make * sure that there are no further calls to journal_write_metadata * before the revoke is complete. In ext3, this implies calling the * revoke before clearing the block bitmap when we are deleting - * metadata. + * metadata. * * Revoke performs a journal_forget on any buffer_head passed in as a * parameter, but does _not_ forget the buffer_head if the bh was only - * found implicitly. + * found implicitly. * * bh_in may not be a journalled buffer - it may have come off * the hash tables without an attached journal_head. @@ -325,7 +325,7 @@ void journal_destroy_revoke(journal_t *journal) * by one. */ -int journal_revoke(handle_t *handle, unsigned long blocknr, +int journal_revoke(handle_t *handle, unsigned long blocknr, struct buffer_head *bh_in) { struct buffer_head *bh = NULL; @@ -487,7 +487,7 @@ void journal_switch_revoke_table(journal_t *journal) else journal->j_revoke = journal->j_revoke_table[0]; - for (i = 0; i < journal->j_revoke->hash_size; i++) + for (i = 0; i < journal->j_revoke->hash_size; i++) INIT_LIST_HEAD(&journal->j_revoke->hash_table[i]); } @@ -498,7 +498,7 @@ void journal_switch_revoke_table(journal_t *journal) * Called with the journal lock held. */ -void journal_write_revoke_records(journal_t *journal, +void journal_write_revoke_records(journal_t *journal, transaction_t *transaction) { struct journal_head *descriptor; @@ -507,7 +507,7 @@ void journal_write_revoke_records(journal_t *journal, struct list_head *hash_list; int i, offset, count; - descriptor = NULL; + descriptor = NULL; offset = 0; count = 0; @@ -519,10 +519,10 @@ void journal_write_revoke_records(journal_t *journal, hash_list = &revoke->hash_table[i]; while (!list_empty(hash_list)) { - record = (struct jbd_revoke_record_s *) + record = (struct jbd_revoke_record_s *) hash_list->next; write_one_revoke_record(journal, transaction, - &descriptor, &offset, + &descriptor, &offset, record); count++; list_del(&record->hash); @@ -534,14 +534,14 @@ void journal_write_revoke_records(journal_t *journal, jbd_debug(1, "Wrote %d revoke records\n", count); } -/* +/* * Write out one revoke record. We need to create a new descriptor - * block if the old one is full or if we have not already created one. + * block if the old one is full or if we have not already created one. */ -static void write_one_revoke_record(journal_t *journal, +static void write_one_revoke_record(journal_t *journal, transaction_t *transaction, - struct journal_head **descriptorp, + struct journal_head **descriptorp, int *offsetp, struct jbd_revoke_record_s *record) { @@ -584,21 +584,21 @@ static void write_one_revoke_record(journal_t *journal, *descriptorp = descriptor; } - * ((__be32 *)(&jh2bh(descriptor)->b_data[offset])) = + * ((__be32 *)(&jh2bh(descriptor)->b_data[offset])) = cpu_to_be32(record->blocknr); offset += 4; *offsetp = offset; } -/* +/* * Flush a revoke descriptor out to the journal. If we are aborting, * this is a noop; otherwise we are generating a buffer which needs to * be waited for during commit, so it has to go onto the appropriate * journal buffer list. */ -static void flush_descriptor(journal_t *journal, - struct journal_head *descriptor, +static void flush_descriptor(journal_t *journal, + struct journal_head *descriptor, int offset) { journal_revoke_header_t *header; @@ -618,7 +618,7 @@ static void flush_descriptor(journal_t *journal, } #endif -/* +/* * Revoke support for recovery. * * Recovery needs to be able to: @@ -629,7 +629,7 @@ static void flush_descriptor(journal_t *journal, * check whether a given block in a given transaction should be replayed * (ie. has not been revoked by a revoke record in that or a subsequent * transaction) - * + * * empty the revoke table after recovery. */ @@ -637,11 +637,11 @@ static void flush_descriptor(journal_t *journal, * First, setting revoke records. We create a new revoke record for * every block ever revoked in the log as we scan it for recovery, and * we update the existing records if we find multiple revokes for a - * single block. + * single block. */ -int journal_set_revoke(journal_t *journal, - unsigned long blocknr, +int journal_set_revoke(journal_t *journal, + unsigned long blocknr, tid_t sequence) { struct jbd_revoke_record_s *record; @@ -653,18 +653,18 @@ int journal_set_revoke(journal_t *journal, if (tid_gt(sequence, record->sequence)) record->sequence = sequence; return 0; - } + } return insert_revoke_hash(journal, blocknr, sequence); } -/* +/* * Test revoke records. For a given block referenced in the log, has * that block been revoked? A revoke record with a given transaction * sequence number revokes all blocks in that transaction and earlier * ones, but later transactions still need replayed. */ -int journal_test_revoke(journal_t *journal, +int journal_test_revoke(journal_t *journal, unsigned long blocknr, tid_t sequence) { diff --git a/fs/jbd/transaction.c b/fs/jbd/transaction.c index f5169a96260e..bf7fd7117817 100644 --- a/fs/jbd/transaction.c +++ b/fs/jbd/transaction.c @@ -1,6 +1,6 @@ /* * linux/fs/transaction.c - * + * * Written by Stephen C. Tweedie , 1998 * * Copyright 1998 Red Hat corp --- All Rights Reserved @@ -10,7 +10,7 @@ * option, any later version, incorporated herein by reference. * * Generic filesystem transaction handling code; part of the ext2fs - * journaling system. + * journaling system. * * This file manages transactions (compound commits managed by the * journaling code) and handles (individual atomic operations by the @@ -74,7 +74,7 @@ get_transaction(journal_t *journal, transaction_t *transaction) * start_this_handle: Given a handle, deal with any locking or stalling * needed to make sure that there is enough journal space for the handle * to begin. Attach the handle to a transaction and set up the - * transaction's buffer credits. + * transaction's buffer credits. */ static int start_this_handle(journal_t *journal, handle_t *handle) @@ -117,7 +117,7 @@ repeat_locked: if (is_journal_aborted(journal) || (journal->j_errno != 0 && !(journal->j_flags & JFS_ACK_ERR))) { spin_unlock(&journal->j_state_lock); - ret = -EROFS; + ret = -EROFS; goto out; } @@ -182,7 +182,7 @@ repeat_locked: goto repeat; } - /* + /* * The commit code assumes that it can get enough log space * without forcing a checkpoint. This is *critical* for * correctness: a checkpoint of a buffer which is also @@ -191,7 +191,7 @@ repeat_locked: * * We must therefore ensure the necessary space in the journal * *before* starting to dirty potentially checkpointed buffers - * in the new transaction. + * in the new transaction. * * The worst part is, any transaction currently committing can * reduce the free space arbitrarily. Be careful to account for @@ -246,13 +246,13 @@ static handle_t *new_handle(int nblocks) } /** - * handle_t *journal_start() - Obtain a new handle. + * handle_t *journal_start() - Obtain a new handle. * @journal: Journal to start transaction on. * @nblocks: number of block buffer we might modify * * We make sure that the transaction can guarantee at least nblocks of * modified buffers in the log. We block until the log can guarantee - * that much space. + * that much space. * * This function is visible to journal users (like ext3fs), so is not * called with the journal already locked. @@ -292,11 +292,11 @@ handle_t *journal_start(journal_t *journal, int nblocks) * int journal_extend() - extend buffer credits. * @handle: handle to 'extend' * @nblocks: nr blocks to try to extend by. - * + * * Some transactions, such as large extends and truncates, can be done * atomically all at once or in several stages. The operation requests * a credit for a number of buffer modications in advance, but can - * extend its credit if it needs more. + * extend its credit if it needs more. * * journal_extend tries to give the running handle more buffer credits. * It does not guarantee that allocation - this is a best-effort only. @@ -363,7 +363,7 @@ out: * int journal_restart() - restart a handle . * @handle: handle to restart * @nblocks: nr credits requested - * + * * Restart a handle for a multi-transaction filesystem * operation. * @@ -462,7 +462,7 @@ void journal_lock_updates(journal_t *journal) /** * void journal_unlock_updates (journal_t* journal) - release barrier * @journal: Journal to release the barrier on. - * + * * Release a transaction barrier obtained with journal_lock_updates(). * * Should be called without the journal lock held. @@ -547,8 +547,8 @@ repeat: jbd_lock_bh_state(bh); /* We now hold the buffer lock so it is safe to query the buffer - * state. Is the buffer dirty? - * + * state. Is the buffer dirty? + * * If so, there are two possibilities. The buffer may be * non-journaled, and undergoing a quite legitimate writeback. * Otherwise, it is journaled, and we don't expect dirty buffers @@ -566,7 +566,7 @@ repeat: */ if (jh->b_transaction) { J_ASSERT_JH(jh, - jh->b_transaction == transaction || + jh->b_transaction == transaction || jh->b_transaction == journal->j_committing_transaction); if (jh->b_next_transaction) @@ -653,7 +653,7 @@ repeat: * buffer had better remain locked during the kmalloc, * but that should be true --- we hold the journal lock * still and the buffer is already on the BUF_JOURNAL - * list so won't be flushed. + * list so won't be flushed. * * Subtle point, though: if this is a get_undo_access, * then we will be relying on the frozen_data to contain @@ -765,8 +765,8 @@ int journal_get_write_access(handle_t *handle, struct buffer_head *bh) * manually rather than reading off disk), then we need to keep the * buffer_head locked until it has been completely filled with new * data. In this case, we should be able to make the assertion that - * the bh is not already part of an existing transaction. - * + * the bh is not already part of an existing transaction. + * * The buffer should already be locked by the caller by this point. * There is no lock ranking violation: it was a newly created, * unlocked buffer beforehand. */ @@ -778,7 +778,7 @@ int journal_get_write_access(handle_t *handle, struct buffer_head *bh) * * Call this if you create a new bh. */ -int journal_get_create_access(handle_t *handle, struct buffer_head *bh) +int journal_get_create_access(handle_t *handle, struct buffer_head *bh) { transaction_t *transaction = handle->h_transaction; journal_t *journal = transaction->t_journal; @@ -847,13 +847,13 @@ out: * do not reuse freed space until the deallocation has been committed, * since if we overwrote that space we would make the delete * un-rewindable in case of a crash. - * + * * To deal with that, journal_get_undo_access requests write access to a * buffer for parts of non-rewindable operations such as delete * operations on the bitmaps. The journaling code must keep a copy of * the buffer's contents prior to the undo_access call until such time * as we know that the buffer has definitely been committed to disk. - * + * * We never need to know which transaction the committed data is part * of, buffers touched here are guaranteed to be dirtied later and so * will be committed to a new transaction in due course, at which point @@ -911,13 +911,13 @@ out: return err; } -/** +/** * int journal_dirty_data() - mark a buffer as containing dirty data which * needs to be flushed before we can commit the - * current transaction. + * current transaction. * @handle: transaction * @bh: bufferhead to mark - * + * * The buffer is placed on the transaction's data list and is marked as * belonging to the transaction. * @@ -946,15 +946,15 @@ int journal_dirty_data(handle_t *handle, struct buffer_head *bh) /* * What if the buffer is already part of a running transaction? - * + * * There are two cases: * 1) It is part of the current running transaction. Refile it, * just in case we have allocated it as metadata, deallocated - * it, then reallocated it as data. + * it, then reallocated it as data. * 2) It is part of the previous, still-committing transaction. * If all we want to do is to guarantee that the buffer will be * written to disk before this new transaction commits, then - * being sure that the *previous* transaction has this same + * being sure that the *previous* transaction has this same * property is sufficient for us! Just leave it on its old * transaction. * @@ -1076,18 +1076,18 @@ no_journal: return 0; } -/** +/** * int journal_dirty_metadata() - mark a buffer as containing dirty metadata * @handle: transaction to add buffer to. - * @bh: buffer to mark - * + * @bh: buffer to mark + * * mark dirty metadata which needs to be journaled as part of the current * transaction. * * The buffer is placed on the transaction's metadata list and is marked - * as belonging to the transaction. + * as belonging to the transaction. * - * Returns error number or 0 on success. + * Returns error number or 0 on success. * * Special care needs to be taken if the buffer already belongs to the * current committing transaction (in which case we should have frozen @@ -1135,11 +1135,11 @@ int journal_dirty_metadata(handle_t *handle, struct buffer_head *bh) set_buffer_jbddirty(bh); - /* + /* * Metadata already on the current transaction list doesn't * need to be filed. Metadata on another transaction's list must * be committing, and will be refiled once the commit completes: - * leave it alone for now. + * leave it alone for now. */ if (jh->b_transaction != transaction) { JBUFFER_TRACE(jh, "already on other transaction"); @@ -1165,7 +1165,7 @@ out: return 0; } -/* +/* * journal_release_buffer: undo a get_write_access without any buffer * updates, if the update decided in the end that it didn't need access. * @@ -1176,20 +1176,20 @@ journal_release_buffer(handle_t *handle, struct buffer_head *bh) BUFFER_TRACE(bh, "entry"); } -/** +/** * void journal_forget() - bforget() for potentially-journaled buffers. * @handle: transaction handle * @bh: bh to 'forget' * * We can only do the bforget if there are no commits pending against the * buffer. If the buffer is dirty in the current running transaction we - * can safely unlink it. + * can safely unlink it. * * bh may not be a journalled buffer at all - it may be a non-JBD * buffer which came off the hashtable. Check for this. * * Decrements bh->b_count by one. - * + * * Allow this call even if the handle has aborted --- it may be part of * the caller's cleanup after an abort. */ @@ -1237,7 +1237,7 @@ int journal_forget (handle_t *handle, struct buffer_head *bh) drop_reserve = 1; - /* + /* * We are no longer going to journal this buffer. * However, the commit of this transaction is still * important to the buffer: the delete that we are now @@ -1246,7 +1246,7 @@ int journal_forget (handle_t *handle, struct buffer_head *bh) * * So, if we have a checkpoint on the buffer, we should * now refile the buffer on our BJ_Forget list so that - * we know to remove the checkpoint after we commit. + * we know to remove the checkpoint after we commit. */ if (jh->b_cp_transaction) { @@ -1264,7 +1264,7 @@ int journal_forget (handle_t *handle, struct buffer_head *bh) } } } else if (jh->b_transaction) { - J_ASSERT_JH(jh, (jh->b_transaction == + J_ASSERT_JH(jh, (jh->b_transaction == journal->j_committing_transaction)); /* However, if the buffer is still owned by a prior * (committing) transaction, we can't drop it yet... */ @@ -1294,7 +1294,7 @@ drop: /** * int journal_stop() - complete a transaction * @handle: tranaction to complete. - * + * * All done for a particular handle. * * There is not much action needed here. We just return any remaining @@ -1303,7 +1303,7 @@ drop: * filesystem is marked for synchronous update. * * journal_stop itself will not usually return an error, but it may - * do so in unusual circumstances. In particular, expect it to + * do so in unusual circumstances. In particular, expect it to * return -EIO if a journal_abort has been executed since the * transaction began. */ @@ -1388,7 +1388,7 @@ int journal_stop(handle_t *handle) /* * Special case: JFS_SYNC synchronous updates require us - * to wait for the commit to complete. + * to wait for the commit to complete. */ if (handle->h_sync && !(current->flags & PF_MEMALLOC)) err = log_wait_commit(journal, tid); @@ -1439,7 +1439,7 @@ int journal_force_commit(journal_t *journal) * jbd_lock_bh_state(jh2bh(jh)) is held. */ -static inline void +static inline void __blist_add_buffer(struct journal_head **list, struct journal_head *jh) { if (!*list) { @@ -1454,7 +1454,7 @@ __blist_add_buffer(struct journal_head **list, struct journal_head *jh) } } -/* +/* * Remove a buffer from a transaction list, given the transaction's list * head pointer. * @@ -1475,7 +1475,7 @@ __blist_del_buffer(struct journal_head **list, struct journal_head *jh) jh->b_tnext->b_tprev = jh->b_tprev; } -/* +/* * Remove a buffer from the appropriate transaction list. * * Note that this function can *change* the value of @@ -1595,17 +1595,17 @@ out: } -/** +/** * int journal_try_to_free_buffers() - try to free page buffers. * @journal: journal for operation * @page: to try and free * @unused_gfp_mask: unused * - * + * * For all the buffers on this page, * if they are fully written out ordered data, move them onto BUF_CLEAN * so try_to_free_buffers() can reap them. - * + * * This function returns non-zero if we wish try_to_free_buffers() * to be called. We do this if the page is releasable by try_to_free_buffers(). * We also do it if the page has locked or dirty buffers and the caller wants @@ -1629,7 +1629,7 @@ out: * cannot happen because we never reallocate freed data as metadata * while the data is part of a transaction. Yes? */ -int journal_try_to_free_buffers(journal_t *journal, +int journal_try_to_free_buffers(journal_t *journal, struct page *page, gfp_t unused_gfp_mask) { struct buffer_head *head; @@ -1697,7 +1697,7 @@ static int __dispose_buffer(struct journal_head *jh, transaction_t *transaction) } /* - * journal_invalidatepage + * journal_invalidatepage * * This code is tricky. It has a number of cases to deal with. * @@ -1705,15 +1705,15 @@ static int __dispose_buffer(struct journal_head *jh, transaction_t *transaction) * * i_size must be updated on disk before we start calling invalidatepage on the * data. - * + * * This is done in ext3 by defining an ext3_setattr method which * updates i_size before truncate gets going. By maintaining this * invariant, we can be sure that it is safe to throw away any buffers * attached to the current transaction: once the transaction commits, * we know that the data will not be needed. - * + * * Note however that we can *not* throw away data belonging to the - * previous, committing transaction! + * previous, committing transaction! * * Any disk blocks which *are* part of the previous, committing * transaction (and which therefore cannot be discarded immediately) are @@ -1732,7 +1732,7 @@ static int __dispose_buffer(struct journal_head *jh, transaction_t *transaction) * don't make guarantees about the order in which data hits disk --- in * particular we don't guarantee that new dirty data is flushed before * transaction commit --- so it is always safe just to discard data - * immediately in that mode. --sct + * immediately in that mode. --sct */ /* @@ -1876,9 +1876,9 @@ zap_buffer_unlocked: return may_free; } -/** +/** * void journal_invalidatepage() - * @journal: journal to use for flush... + * @journal: journal to use for flush... * @page: page to flush * @offset: length of page to invalidate. * @@ -1886,7 +1886,7 @@ zap_buffer_unlocked: * */ void journal_invalidatepage(journal_t *journal, - struct page *page, + struct page *page, unsigned long offset) { struct buffer_head *head, *bh, *next; @@ -1924,8 +1924,8 @@ void journal_invalidatepage(journal_t *journal, } } -/* - * File a buffer on the given transaction list. +/* + * File a buffer on the given transaction list. */ void __journal_file_buffer(struct journal_head *jh, transaction_t *transaction, int jlist) @@ -1948,7 +1948,7 @@ void __journal_file_buffer(struct journal_head *jh, * with __jbd_unexpected_dirty_buffer()'s handling of dirty * state. */ - if (jlist == BJ_Metadata || jlist == BJ_Reserved || + if (jlist == BJ_Metadata || jlist == BJ_Reserved || jlist == BJ_Shadow || jlist == BJ_Forget) { if (test_clear_buffer_dirty(bh) || test_clear_buffer_jbddirty(bh)) @@ -2008,7 +2008,7 @@ void journal_file_buffer(struct journal_head *jh, jbd_unlock_bh_state(jh2bh(jh)); } -/* +/* * Remove a buffer from its current buffer list in preparation for * dropping it from its current transaction entirely. If the buffer has * already started to be used by a subsequent transaction, refile the @@ -2060,7 +2060,7 @@ void __journal_refile_buffer(struct journal_head *jh) * to the caller to remove the journal_head if necessary. For the * unlocked journal_refile_buffer call, the caller isn't going to be * doing anything else to the buffer so we need to do the cleanup - * ourselves to avoid a jh leak. + * ourselves to avoid a jh leak. * * *** The journal_head may be freed by this call! *** */ diff --git a/include/linux/ext3_jbd.h b/include/linux/ext3_jbd.h index c8307c02dd07..ce0e6109aff0 100644 --- a/include/linux/ext3_jbd.h +++ b/include/linux/ext3_jbd.h @@ -23,7 +23,7 @@ /* Define the number of blocks we need to account to a transaction to * modify one block of data. - * + * * We may have to touch one inode, one bitmap buffer, up to three * indirection blocks, the group and superblock summaries, and the data * block to complete the transaction. */ @@ -88,16 +88,16 @@ #endif int -ext3_mark_iloc_dirty(handle_t *handle, +ext3_mark_iloc_dirty(handle_t *handle, struct inode *inode, struct ext3_iloc *iloc); -/* +/* * On success, We end up with an outstanding reference count against - * iloc->bh. This _must_ be cleaned up later. + * iloc->bh. This _must_ be cleaned up later. */ -int ext3_reserve_inode_write(handle_t *handle, struct inode *inode, +int ext3_reserve_inode_write(handle_t *handle, struct inode *inode, struct ext3_iloc *iloc); int ext3_mark_inode_dirty(handle_t *handle, struct inode *inode); diff --git a/include/linux/jbd.h b/include/linux/jbd.h index a04c154c5207..7d847931ee5a 100644 --- a/include/linux/jbd.h +++ b/include/linux/jbd.h @@ -1,6 +1,6 @@ /* * linux/include/linux/jbd.h - * + * * Written by Stephen C. Tweedie * * Copyright 1998-2000 Red Hat, Inc --- All Rights Reserved @@ -97,8 +97,8 @@ extern void jbd_slab_free(void *ptr, size_t size); * number of outstanding buffers possible at any time. When the * operation completes, any buffer credits not used are credited back to * the transaction, so that at all times we know how many buffers the - * outstanding updates on a transaction might possibly touch. - * + * outstanding updates on a transaction might possibly touch. + * * This is an opaque datatype. **/ typedef struct handle_s handle_t; /* Atomic operation type */ @@ -108,7 +108,7 @@ typedef struct handle_s handle_t; /* Atomic operation type */ * typedef journal_t - The journal_t maintains all of the journaling state information for a single filesystem. * * journal_t is linked to from the fs superblock structure. - * + * * We use the journal_t to keep track of all outstanding transaction * activity on the filesystem, and to manage the state of the log * writing process. @@ -128,7 +128,7 @@ typedef struct journal_s journal_t; /* Journal control structure */ * On-disk structures */ -/* +/* * Descriptor block types: */ @@ -149,8 +149,8 @@ typedef struct journal_header_s } journal_header_t; -/* - * The block tag: used to describe a single buffer in the journal +/* + * The block tag: used to describe a single buffer in the journal */ typedef struct journal_block_tag_s { @@ -158,9 +158,9 @@ typedef struct journal_block_tag_s __be32 t_flags; /* See below */ } journal_block_tag_t; -/* +/* * The revoke descriptor: used on disk to describe a series of blocks to - * be revoked from the log + * be revoked from the log */ typedef struct journal_revoke_header_s { @@ -374,10 +374,10 @@ struct jbd_revoke_table_s; **/ /* Docbook can't yet cope with the bit fields, but will leave the documentation - * in so it can be fixed later. + * in so it can be fixed later. */ -struct handle_s +struct handle_s { /* Which compound transaction is this update a part of? */ transaction_t *h_transaction; @@ -435,7 +435,7 @@ struct handle_s * */ -struct transaction_s +struct transaction_s { /* Pointer to the journal for this transaction. [no locking] */ journal_t *t_journal; @@ -455,7 +455,7 @@ struct transaction_s T_RUNDOWN, T_FLUSH, T_COMMIT, - T_FINISHED + T_FINISHED } t_state; /* @@ -569,7 +569,7 @@ struct transaction_s * journal_t. * @j_flags: General journaling state flags * @j_errno: Is there an outstanding uncleared error on the journal (from a - * prior abort)? + * prior abort)? * @j_sb_buffer: First part of superblock buffer * @j_superblock: Second part of superblock buffer * @j_format_version: Version of the superblock format @@ -583,7 +583,7 @@ struct transaction_s * @j_wait_transaction_locked: Wait queue for waiting for a locked transaction * to start committing, or for a barrier lock to be released * @j_wait_logspace: Wait queue for waiting for checkpointing to complete - * @j_wait_done_commit: Wait queue for waiting for commit to complete + * @j_wait_done_commit: Wait queue for waiting for commit to complete * @j_wait_checkpoint: Wait queue to trigger checkpointing * @j_wait_commit: Wait queue to trigger commit * @j_wait_updates: Wait queue to wait for updates to complete @@ -592,7 +592,7 @@ struct transaction_s * @j_tail: Journal tail - identifies the oldest still-used block in the * journal. * @j_free: Journal free - how many free blocks are there in the journal? - * @j_first: The block number of the first usable block + * @j_first: The block number of the first usable block * @j_last: The block number one beyond the last usable block * @j_dev: Device where we store the journal * @j_blocksize: blocksize for the location where we store the journal. @@ -604,12 +604,12 @@ struct transaction_s * @j_list_lock: Protects the buffer lists and internal buffer state. * @j_inode: Optional inode where we store the journal. If present, all journal * block numbers are mapped into this inode via bmap(). - * @j_tail_sequence: Sequence number of the oldest transaction in the log + * @j_tail_sequence: Sequence number of the oldest transaction in the log * @j_transaction_sequence: Sequence number of the next transaction to grant * @j_commit_sequence: Sequence number of the most recently committed * transaction * @j_commit_request: Sequence number of the most recent transaction wanting - * commit + * commit * @j_uuid: Uuid of client object. * @j_task: Pointer to the current commit thread for this journal * @j_max_transaction_buffers: Maximum number of metadata buffers to allow in a @@ -823,8 +823,8 @@ struct journal_s void *j_private; }; -/* - * Journal flag definitions +/* + * Journal flag definitions */ #define JFS_UNMOUNT 0x001 /* Journal thread is being destroyed */ #define JFS_ABORT 0x002 /* Journaling has been aborted for errors. */ @@ -833,7 +833,7 @@ struct journal_s #define JFS_LOADED 0x010 /* The journal superblock has been loaded */ #define JFS_BARRIER 0x020 /* Use IDE barriers */ -/* +/* * Function declarations for the journaling transaction and buffer * management */ @@ -862,7 +862,7 @@ int __journal_remove_checkpoint(struct journal_head *); void __journal_insert_checkpoint(struct journal_head *, transaction_t *); /* Buffer IO */ -extern int +extern int journal_write_metadata_buffer(transaction_t *transaction, struct journal_head *jh_in, struct journal_head **jh_out, @@ -890,7 +890,7 @@ static inline handle_t *journal_current_handle(void) /* The journaling code user interface: * * Create and destroy handles - * Register buffer modifications against the current transaction. + * Register buffer modifications against the current transaction. */ extern handle_t *journal_start(journal_t *, int nblocks); @@ -917,11 +917,11 @@ extern journal_t * journal_init_dev(struct block_device *bdev, int start, int len, int bsize); extern journal_t * journal_init_inode (struct inode *); extern int journal_update_format (journal_t *); -extern int journal_check_used_features +extern int journal_check_used_features (journal_t *, unsigned long, unsigned long, unsigned long); -extern int journal_check_available_features +extern int journal_check_available_features (journal_t *, unsigned long, unsigned long, unsigned long); -extern int journal_set_features +extern int journal_set_features (journal_t *, unsigned long, unsigned long, unsigned long); extern int journal_create (journal_t *); extern int journal_load (journal_t *journal); @@ -1015,7 +1015,7 @@ do { \ * bit, when set, indicates that we have had a fatal error somewhere, * either inside the journaling layer or indicated to us by the client * (eg. ext3), and that we and should not commit any further - * transactions. + * transactions. */ static inline int is_journal_aborted(journal_t *journal) @@ -1082,7 +1082,7 @@ static inline int jbd_space_needed(journal_t *journal) #define BJ_Reserved 7 /* Buffer is reserved for access by journal */ #define BJ_Locked 8 /* Locked for I/O during commit */ #define BJ_Types 9 - + extern int jbd_blocks_per_page(struct inode *inode); #ifdef __KERNEL__ -- cgit v1.2.3 From 37ed322290eb6d5cf2ab33915793ed4219eae1d6 Mon Sep 17 00:00:00 2001 From: Eric Sandeen Date: Wed, 27 Sep 2006 01:49:31 -0700 Subject: [PATCH] JBD: 16T fixes These are a few places I've found in jbd that look like they may not be 16T-safe, or consistent with the use of unsigned longs for block containers. Problems here would be somewhat hard to hit, would require journal blocks past the 8T boundary, which would not be terribly common. Still, should fix. (some of these have come from the ext4 work on jbd as well). I think there's one more possibility that the wrap() function may not be safe IF your last block in the journal butts right up against the 232 block boundary, but that seems like a VERY remote possibility, and I'm not worrying about it at this point. Signed-off-by: Eric Sandeen Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/jbd/journal.c | 6 +++--- include/linux/jbd.h | 4 ++-- 2 files changed, 5 insertions(+), 5 deletions(-) (limited to 'include') diff --git a/fs/jbd/journal.c b/fs/jbd/journal.c index 2613fca92740..88d970e09ce6 100644 --- a/fs/jbd/journal.c +++ b/fs/jbd/journal.c @@ -271,7 +271,7 @@ static void journal_kill_thread(journal_t *journal) int journal_write_metadata_buffer(transaction_t *transaction, struct journal_head *jh_in, struct journal_head **jh_out, - int blocknr) + unsigned long blocknr) { int need_copy_out = 0; int done_copy_out = 0; @@ -696,7 +696,7 @@ fail: * @bdev: Block device on which to create the journal * @fs_dev: Device which hold journalled filesystem for this journal. * @start: Block nr Start of journal. - * @len: Lenght of the journal in blocks. + * @len: Length of the journal in blocks. * @blocksize: blocksize of journalling device * @returns: a newly created journal_t * * @@ -820,7 +820,7 @@ static void journal_fail_superblock (journal_t *journal) static int journal_reset(journal_t *journal) { journal_superblock_t *sb = journal->j_superblock; - unsigned int first, last; + unsigned long first, last; first = be32_to_cpu(sb->s_first); last = be32_to_cpu(sb->s_maxlen); diff --git a/include/linux/jbd.h b/include/linux/jbd.h index 7d847931ee5a..dc262624efa5 100644 --- a/include/linux/jbd.h +++ b/include/linux/jbd.h @@ -732,7 +732,7 @@ struct journal_s */ struct block_device *j_dev; int j_blocksize; - unsigned int j_blk_offset; + unsigned long j_blk_offset; /* * Device which holds the client fs. For internal journal this will be @@ -866,7 +866,7 @@ extern int journal_write_metadata_buffer(transaction_t *transaction, struct journal_head *jh_in, struct journal_head **jh_out, - int blocknr); + unsigned long blocknr); /* Transaction locking */ extern void __wait_on_journal (journal_t *); -- cgit v1.2.3 From e9ad5620bfb901df8a7a2603c88689ededeecaf1 Mon Sep 17 00:00:00 2001 From: Dave Kleikamp Date: Wed, 27 Sep 2006 01:49:35 -0700 Subject: [PATCH] ext3: More whitespace cleanups More white space cleanups in preparation of cloning ext4 from ext3. Removing spaces that precede a tab. Signed-off-by: Dave Kleikamp Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/ext3/acl.c | 2 +- fs/ext3/balloc.c | 32 ++++++++++++++++---------------- fs/ext3/dir.c | 2 +- fs/ext3/hash.c | 2 +- fs/ext3/inode.c | 8 ++++---- fs/ext3/namei.c | 18 +++++++++--------- fs/ext3/super.c | 6 +++--- fs/jbd/checkpoint.c | 2 +- fs/jbd/journal.c | 2 +- fs/jbd/recovery.c | 2 +- fs/jbd/transaction.c | 6 +++--- include/linux/ext3_fs.h | 2 +- include/linux/ext3_fs_i.h | 2 +- include/linux/jbd.h | 10 +++++----- 14 files changed, 48 insertions(+), 48 deletions(-) (limited to 'include') diff --git a/fs/ext3/acl.c b/fs/ext3/acl.c index 0d21d558b87a..92bf78221429 100644 --- a/fs/ext3/acl.c +++ b/fs/ext3/acl.c @@ -258,7 +258,7 @@ ext3_set_acl(handle_t *handle, struct inode *inode, int type, default: return -EINVAL; } - if (acl) { + if (acl) { value = ext3_acl_to_disk(acl, &size); if (IS_ERR(value)) return (int)PTR_ERR(value); diff --git a/fs/ext3/balloc.c b/fs/ext3/balloc.c index f1897feb18f4..c19be8fc3e51 100644 --- a/fs/ext3/balloc.c +++ b/fs/ext3/balloc.c @@ -40,7 +40,7 @@ /** * ext3_get_group_desc() -- load group descriptor from disk - * @sb: super block + * @sb: super block * @block_group: given block group * @bh: pointer to the buffer head to store the block * group descriptor @@ -355,7 +355,7 @@ void ext3_init_block_alloc_info(struct inode *inode) rsv->rsv_start = EXT3_RESERVE_WINDOW_NOT_ALLOCATED; rsv->rsv_end = EXT3_RESERVE_WINDOW_NOT_ALLOCATED; - /* + /* * if filesystem is mounted with NORESERVATION, the goal * reservation window size is set to zero to indicate * block reservation is off @@ -681,7 +681,7 @@ bitmap_search_next_usable_block(ext3_grpblk_t start, struct buffer_head *bh, jbd_lock_bh_state(bh); if (jh->b_committed_data) start = ext3_find_next_zero_bit(jh->b_committed_data, - maxblocks, next); + maxblocks, next); jbd_unlock_bh_state(bh); } return -1; @@ -790,10 +790,10 @@ claim_block(spinlock_t *lock, ext3_grpblk_t block, struct buffer_head *bh) * and at last, allocate the blocks by claiming the found free bit as allocated. * * To set the range of this allocation: - * if there is a reservation window, only try to allocate block(s) from the + * if there is a reservation window, only try to allocate block(s) from the * file's own reservation window; * Otherwise, the allocation range starts from the give goal block, ends at - * the block group's last block. + * the block group's last block. * * If we failed to allocate the desired block then we may end up crossing to a * new bitmap. In that case we must release write access to the old one via @@ -880,12 +880,12 @@ fail_access: } /** - * find_next_reservable_window(): + * find_next_reservable_window(): * find a reservable space within the given range. * It does not allocate the reservation window for now: * alloc_new_reservation() will do the work later. * - * @search_head: the head of the searching list; + * @search_head: the head of the searching list; * This is not necessarily the list head of the whole filesystem * * We have both head and start_block to assist the search @@ -893,12 +893,12 @@ fail_access: * but we will shift to the place where start_block is, * then start from there, when looking for a reservable space. * - * @size: the target new reservation window size + * @size: the target new reservation window size * - * @group_first_block: the first block we consider to start + * @group_first_block: the first block we consider to start * the real search from * - * @last_block: + * @last_block: * the maximum block number that our goal reservable space * could start from. This is normally the last block in this * group. The search will end when we found the start of next @@ -906,10 +906,10 @@ fail_access: * This could handle the cross boundary reservation window * request. * - * basically we search from the given range, rather than the whole - * reservation double linked list, (start_block, last_block) - * to find a free region that is of my size and has not - * been reserved. + * basically we search from the given range, rather than the whole + * reservation double linked list, (start_block, last_block) + * to find a free region that is of my size and has not + * been reserved. * */ static int find_next_reservable_window( @@ -962,7 +962,7 @@ static int find_next_reservable_window( /* * Found a reserveable space big enough. We could * have a reservation across the group boundary here - */ + */ break; } } @@ -998,7 +998,7 @@ static int find_next_reservable_window( } /** - * alloc_new_reservation()--allocate a new reservation window + * alloc_new_reservation()--allocate a new reservation window * * To make a new reservation, we search part of the filesystem * reservation list (the list that inside the group). We try to diff --git a/fs/ext3/dir.c b/fs/ext3/dir.c index 6f9e5a523c87..4d97f437cd48 100644 --- a/fs/ext3/dir.c +++ b/fs/ext3/dir.c @@ -67,7 +67,7 @@ int ext3_check_dir_entry (const char * function, struct inode * dir, unsigned long offset) { const char * error_msg = NULL; - const int rlen = le16_to_cpu(de->rec_len); + const int rlen = le16_to_cpu(de->rec_len); if (rlen < EXT3_DIR_REC_LEN(1)) error_msg = "rec_len is smaller than minimal"; diff --git a/fs/ext3/hash.c b/fs/ext3/hash.c index 7fa637cd322a..deeb27b5ba83 100644 --- a/fs/ext3/hash.c +++ b/fs/ext3/hash.c @@ -95,7 +95,7 @@ int ext3fs_dirhash(const char *name, int len, struct dx_hash_info *hinfo) __u32 minor_hash = 0; const char *p; int i; - __u32 in[8], buf[4]; + __u32 in[8], buf[4]; /* Initialize the default seed for the hash checksum functions */ buf[0] = 0x67452301; diff --git a/fs/ext3/inode.c b/fs/ext3/inode.c index 56665fab027d..c9fc15f8b609 100644 --- a/fs/ext3/inode.c +++ b/fs/ext3/inode.c @@ -13,11 +13,11 @@ * Copyright (C) 1991, 1992 Linus Torvalds * * Goal-directed block allocation by Stephen Tweedie - * (sct@redhat.com), 1993, 1998 + * (sct@redhat.com), 1993, 1998 * Big-endian to little-endian byte-swapping/bitmaps by * David S. Miller (davem@caip.rutgers.edu), 1995 * 64-bit file support on 64-bit platforms by Jakub Jelinek - * (jj@sunsite.ms.mff.cuni.cz) + * (jj@sunsite.ms.mff.cuni.cz) * * Assorted race fixes, rewrite of ext3_get_block() by Al Viro, 2000 */ @@ -470,7 +470,7 @@ static ext3_fsblk_t ext3_find_goal(struct inode *inode, long block, * ext3_blks_to_allocate: Look up the block map and count the number * of direct blocks need to be allocated for the given branch. * - * @branch: chain of indirect blocks + * @branch: chain of indirect blocks * @k: number of blocks need for indirect blocks * @blks: number of data blocks to be mapped. * @blocks_to_boundary: the offset in the indirect block @@ -1098,7 +1098,7 @@ static int walk_page_buffers( handle_t *handle, for ( bh = head, block_start = 0; ret == 0 && (bh != head || !block_start); - block_start = block_end, bh = next) + block_start = block_end, bh = next) { next = bh->b_this_page; block_end = block_start + blocksize; diff --git a/fs/ext3/namei.c b/fs/ext3/namei.c index 70dc5206ebfa..85d132c37ee0 100644 --- a/fs/ext3/namei.c +++ b/fs/ext3/namei.c @@ -15,13 +15,13 @@ * Big-endian to little-endian byte-swapping/bitmaps by * David S. Miller (davem@caip.rutgers.edu), 1995 * Directory entry file type support and forward compatibility hooks - * for B-tree directories by Theodore Ts'o (tytso@mit.edu), 1998 + * for B-tree directories by Theodore Ts'o (tytso@mit.edu), 1998 * Hash Tree Directory indexing (c) - * Daniel Phillips, 2001 + * Daniel Phillips, 2001 * Hash Tree Directory indexing porting - * Christopher Li, 2002 + * Christopher Li, 2002 * Hash Tree Directory indexing cleanup - * Theodore Ts'o, 2002 + * Theodore Ts'o, 2002 */ #include @@ -278,7 +278,7 @@ static struct stats dx_show_leaf(struct dx_hash_info *hinfo, struct ext3_dir_ent ((char *) de - base)); } space += EXT3_DIR_REC_LEN(de->name_len); - names++; + names++; } de = (struct ext3_dir_entry_2 *) ((char *) de + le16_to_cpu(de->rec_len)); } @@ -1688,7 +1688,7 @@ static int ext3_mknod (struct inode * dir, struct dentry *dentry, retry: handle = ext3_journal_start(dir, EXT3_DATA_TRANS_BLOCKS(dir->i_sb) + - EXT3_INDEX_EXTRA_TRANS_BLOCKS + 3 + + EXT3_INDEX_EXTRA_TRANS_BLOCKS + 3 + 2*EXT3_QUOTA_INIT_BLOCKS(dir->i_sb)); if (IS_ERR(handle)) return PTR_ERR(handle); @@ -1816,7 +1816,7 @@ static int empty_dir (struct inode * inode) !le32_to_cpu(de1->inode) || strcmp (".", de->name) || strcmp ("..", de1->name)) { - ext3_warning (inode->i_sb, "empty_dir", + ext3_warning (inode->i_sb, "empty_dir", "bad directory (dir #%lu) - no `.' or `..'", inode->i_ino); brelse (bh); @@ -2129,7 +2129,7 @@ static int ext3_symlink (struct inode * dir, retry: handle = ext3_journal_start(dir, EXT3_DATA_TRANS_BLOCKS(dir->i_sb) + - EXT3_INDEX_EXTRA_TRANS_BLOCKS + 5 + + EXT3_INDEX_EXTRA_TRANS_BLOCKS + 5 + 2*EXT3_QUOTA_INIT_BLOCKS(dir->i_sb)); if (IS_ERR(handle)) return PTR_ERR(handle); @@ -2227,7 +2227,7 @@ static int ext3_rename (struct inode * old_dir, struct dentry *old_dentry, DQUOT_INIT(new_dentry->d_inode); handle = ext3_journal_start(old_dir, 2 * EXT3_DATA_TRANS_BLOCKS(old_dir->i_sb) + - EXT3_INDEX_EXTRA_TRANS_BLOCKS + 2); + EXT3_INDEX_EXTRA_TRANS_BLOCKS + 2); if (IS_ERR(handle)) return PTR_ERR(handle); diff --git a/fs/ext3/super.c b/fs/ext3/super.c index 4b526b496102..0544325d9d7e 100644 --- a/fs/ext3/super.c +++ b/fs/ext3/super.c @@ -734,8 +734,8 @@ static match_table_t tokens = { static ext3_fsblk_t get_sb_block(void **data) { - ext3_fsblk_t sb_block; - char *options = (char *) *data; + ext3_fsblk_t sb_block; + char *options = (char *) *data; if (!options || strncmp(options, "sb=", 3) != 0) return 1; /* Default location */ @@ -2740,7 +2740,7 @@ static int __init init_ext3_fs(void) out: destroy_inodecache(); out1: - exit_ext3_xattr(); + exit_ext3_xattr(); return err; } diff --git a/fs/jbd/checkpoint.c b/fs/jbd/checkpoint.c index 961ada28db5e..0208cc7ac5d0 100644 --- a/fs/jbd/checkpoint.c +++ b/fs/jbd/checkpoint.c @@ -480,7 +480,7 @@ static int journal_clean_one_cp_list(struct journal_head *jh, int *released) if (!jh) return 0; - last_jh = jh->b_cpprev; + last_jh = jh->b_cpprev; do { jh = next_jh; next_jh = jh->b_cpnext; diff --git a/fs/jbd/journal.c b/fs/jbd/journal.c index 88d970e09ce6..b571209d6a1e 100644 --- a/fs/jbd/journal.c +++ b/fs/jbd/journal.c @@ -181,7 +181,7 @@ loop: transaction->t_expires)) should_sleep = 0; if (journal->j_flags & JFS_UNMOUNT) - should_sleep = 0; + should_sleep = 0; if (should_sleep) { spin_unlock(&journal->j_state_lock); schedule(); diff --git a/fs/jbd/recovery.c b/fs/jbd/recovery.c index 73bb64806ed3..445eed6ce5dc 100644 --- a/fs/jbd/recovery.c +++ b/fs/jbd/recovery.c @@ -314,7 +314,7 @@ static int do_one_pass(journal_t *journal, unsigned long next_log_block; int err, success = 0; journal_superblock_t * sb; - journal_header_t * tmp; + journal_header_t * tmp; struct buffer_head * bh; unsigned int sequence; int blocktype; diff --git a/fs/jbd/transaction.c b/fs/jbd/transaction.c index bf7fd7117817..e1b3c8af4d17 100644 --- a/fs/jbd/transaction.c +++ b/fs/jbd/transaction.c @@ -580,7 +580,7 @@ repeat: */ JBUFFER_TRACE(jh, "Unexpected dirty buffer"); jbd_unexpected_dirty_buffer(jh); - } + } unlock_buffer(bh); @@ -1373,7 +1373,7 @@ int journal_stop(handle_t *handle) if (handle->h_sync || transaction->t_outstanding_credits > journal->j_max_transaction_buffers || - time_after_eq(jiffies, transaction->t_expires)) { + time_after_eq(jiffies, transaction->t_expires)) { /* Do this even for aborted journals: an abort still * completes the commit thread, it just doesn't write * anything to disk. */ @@ -1908,7 +1908,7 @@ void journal_invalidatepage(journal_t *journal, next = bh->b_this_page; if (offset <= curr_off) { - /* This block is wholly outside the truncation point */ + /* This block is wholly outside the truncation point */ lock_buffer(bh); may_free &= journal_unmap_buffer(journal, bh); unlock_buffer(bh); diff --git a/include/linux/ext3_fs.h b/include/linux/ext3_fs.h index 0eed918b3816..369c67502346 100644 --- a/include/linux/ext3_fs.h +++ b/include/linux/ext3_fs.h @@ -473,7 +473,7 @@ struct ext3_super_block { __u8 s_reserved_char_pad; __u16 s_reserved_word_pad; __le32 s_default_mount_opts; - __le32 s_first_meta_bg; /* First metablock block group */ + __le32 s_first_meta_bg; /* First metablock block group */ __u32 s_reserved[190]; /* Padding to the end of the block */ }; diff --git a/include/linux/ext3_fs_i.h b/include/linux/ext3_fs_i.h index 2f18b9511f21..4395e5206746 100644 --- a/include/linux/ext3_fs_i.h +++ b/include/linux/ext3_fs_i.h @@ -35,7 +35,7 @@ struct ext3_reserve_window { }; struct ext3_reserve_window_node { - struct rb_node rsv_node; + struct rb_node rsv_node; __u32 rsv_goal_size; __u32 rsv_alloc_hit; struct ext3_reserve_window rsv_window; diff --git a/include/linux/jbd.h b/include/linux/jbd.h index dc262624efa5..a6d9daa38c6d 100644 --- a/include/linux/jbd.h +++ b/include/linux/jbd.h @@ -64,7 +64,7 @@ extern int journal_enable_debug; if ((n) <= journal_enable_debug) { \ printk (KERN_DEBUG "(%s, %d): %s: ", \ __FILE__, __LINE__, __FUNCTION__); \ - printk (f, ## a); \ + printk (f, ## a); \ } \ } while (0) #else @@ -201,9 +201,9 @@ typedef struct journal_superblock_s /* 0x0024 */ /* Remaining fields are only valid in a version-2 superblock */ - __be32 s_feature_compat; /* compatible feature set */ - __be32 s_feature_incompat; /* incompatible feature set */ - __be32 s_feature_ro_compat; /* readonly-compatible feature set */ + __be32 s_feature_compat; /* compatible feature set */ + __be32 s_feature_incompat; /* incompatible feature set */ + __be32 s_feature_ro_compat; /* readonly-compatible feature set */ /* 0x0030 */ __u8 s_uuid[16]; /* 128-bit uuid for journal */ @@ -699,7 +699,7 @@ struct journal_s wait_queue_head_t j_wait_updates; /* Semaphore for locking against concurrent checkpoints */ - struct mutex j_checkpoint_mutex; + struct mutex j_checkpoint_mutex; /* * Journal head: identifies the first unused block in the journal. -- cgit v1.2.3 From a4e4de36dc446b2193bdc8ebb96a96e44b69dd94 Mon Sep 17 00:00:00 2001 From: Dave Kleikamp Date: Wed, 27 Sep 2006 01:49:36 -0700 Subject: [PATCH] ext3: Fix sparse warnings Fixing up some endian-ness warnings in preparation to clone ext4 from ext3. Signed-off-by: Dave Kleikamp Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/ext3/resize.c | 21 +++++++++++---------- fs/ext3/super.c | 4 +--- fs/jbd/journal.c | 2 +- include/linux/ext3_fs.h | 2 +- 4 files changed, 14 insertions(+), 15 deletions(-) (limited to 'include') diff --git a/fs/ext3/resize.c b/fs/ext3/resize.c index 5e1337fd878a..e186f7fb698b 100644 --- a/fs/ext3/resize.c +++ b/fs/ext3/resize.c @@ -336,7 +336,7 @@ static int verify_reserved_gdb(struct super_block *sb, unsigned five = 5; unsigned seven = 7; unsigned grp; - __u32 *p = (__u32 *)primary->b_data; + __le32 *p = (__le32 *)primary->b_data; int gdbackups = 0; while ((grp = ext3_list_backups(sb, &three, &five, &seven)) < end) { @@ -380,7 +380,7 @@ static int add_new_gdb(handle_t *handle, struct inode *inode, struct buffer_head *dind; int gdbackups; struct ext3_iloc iloc; - __u32 *data; + __le32 *data; int err; if (test_opt(sb, DEBUG)) @@ -417,7 +417,7 @@ static int add_new_gdb(handle_t *handle, struct inode *inode, goto exit_bh; } - data = (__u32 *)dind->b_data; + data = (__le32 *)dind->b_data; if (le32_to_cpu(data[gdb_num % EXT3_ADDR_PER_BLOCK(sb)]) != gdblock) { ext3_warning(sb, __FUNCTION__, "new group %u GDT block "E3FSBLK" not reserved", @@ -519,7 +519,7 @@ static int reserve_backup_gdb(handle_t *handle, struct inode *inode, struct buffer_head *dind; struct ext3_iloc iloc; ext3_fsblk_t blk; - __u32 *data, *end; + __le32 *data, *end; int gdbackups = 0; int res, i; int err; @@ -536,8 +536,8 @@ static int reserve_backup_gdb(handle_t *handle, struct inode *inode, } blk = EXT3_SB(sb)->s_sbh->b_blocknr + 1 + EXT3_SB(sb)->s_gdb_count; - data = (__u32 *)dind->b_data + EXT3_SB(sb)->s_gdb_count; - end = (__u32 *)dind->b_data + EXT3_ADDR_PER_BLOCK(sb); + data = (__le32 *)dind->b_data + EXT3_SB(sb)->s_gdb_count; + end = (__le32 *)dind->b_data + EXT3_ADDR_PER_BLOCK(sb); /* Get each reserved primary GDT block and verify it holds backups */ for (res = 0; res < reserved_gdb; res++, blk++) { @@ -545,7 +545,8 @@ static int reserve_backup_gdb(handle_t *handle, struct inode *inode, ext3_warning(sb, __FUNCTION__, "reserved block "E3FSBLK " not at offset %ld", - blk, (long)(data - (__u32 *)dind->b_data)); + blk, + (long)(data - (__le32 *)dind->b_data)); err = -EINVAL; goto exit_bh; } @@ -560,7 +561,7 @@ static int reserve_backup_gdb(handle_t *handle, struct inode *inode, goto exit_bh; } if (++data >= end) - data = (__u32 *)dind->b_data; + data = (__le32 *)dind->b_data; } for (i = 0; i < reserved_gdb; i++) { @@ -584,7 +585,7 @@ static int reserve_backup_gdb(handle_t *handle, struct inode *inode, blk = input->group * EXT3_BLOCKS_PER_GROUP(sb); for (i = 0; i < reserved_gdb; i++) { int err2; - data = (__u32 *)primary[i]->b_data; + data = (__le32 *)primary[i]->b_data; /* printk("reserving backup %lu[%u] = %lu\n", primary[i]->b_blocknr, gdbackups, blk + primary[i]->b_blocknr); */ @@ -689,7 +690,7 @@ exit_err: "can't update backup for group %d (err %d), " "forcing fsck on next reboot", group, err); sbi->s_mount_state &= ~EXT3_VALID_FS; - sbi->s_es->s_state &= ~cpu_to_le16(EXT3_VALID_FS); + sbi->s_es->s_state &= cpu_to_le16(~EXT3_VALID_FS); mark_buffer_dirty(sbi->s_sbh); } } diff --git a/fs/ext3/super.c b/fs/ext3/super.c index 0544325d9d7e..10985017765b 100644 --- a/fs/ext3/super.c +++ b/fs/ext3/super.c @@ -2348,10 +2348,8 @@ static int ext3_remount (struct super_block * sb, int * flags, char * data) */ ext3_clear_journal_err(sb, es); sbi->s_mount_state = le16_to_cpu(es->s_state); - if ((ret = ext3_group_extend(sb, es, n_blocks_count))) { - err = ret; + if ((err = ext3_group_extend(sb, es, n_blocks_count))) goto restore_opts; - } if (!ext3_setup_super (sb, es, 0)) sb->s_flags &= ~MS_RDONLY; } diff --git a/fs/jbd/journal.c b/fs/jbd/journal.c index b571209d6a1e..2fc66c3e6681 100644 --- a/fs/jbd/journal.c +++ b/fs/jbd/journal.c @@ -1094,7 +1094,7 @@ int journal_load(journal_t *journal) /* * Create a slab for this blocksize */ - err = journal_create_jbd_slab(cpu_to_be32(sb->s_blocksize)); + err = journal_create_jbd_slab(be32_to_cpu(sb->s_blocksize)); if (err) return err; diff --git a/include/linux/ext3_fs.h b/include/linux/ext3_fs.h index 369c67502346..cc08f56750da 100644 --- a/include/linux/ext3_fs.h +++ b/include/linux/ext3_fs.h @@ -460,7 +460,7 @@ struct ext3_super_block { */ __u8 s_prealloc_blocks; /* Nr of blocks to try to preallocate*/ __u8 s_prealloc_dir_blocks; /* Nr to preallocate for dirs */ - __u16 s_reserved_gdt_blocks; /* Per group desc for online growth */ + __le16 s_reserved_gdt_blocks; /* Per group desc for online growth */ /* * Journaling support valid if EXT3_FEATURE_COMPAT_HAS_JOURNAL set. */ -- cgit v1.2.3 From 133d205a18b7a4d8cb52959c5310f6664277cf61 Mon Sep 17 00:00:00 2001 From: Alexey Dobriyan Date: Wed, 27 Sep 2006 01:49:41 -0700 Subject: [PATCH] Make kmem_cache_destroy() return void un-, de-, -free, -destroy, -exit, etc functions should in general return void. Also, There is very little, say, filesystem driver code can do upon failed kmem_cache_destroy(). If it will be decided to BUG in this case, BUG should be put in generic code, instead. Signed-off-by: Alexey Dobriyan Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/slab.h | 4 ++-- mm/slab.c | 6 ++---- mm/slob.c | 3 +-- 3 files changed, 5 insertions(+), 8 deletions(-) (limited to 'include') diff --git a/include/linux/slab.h b/include/linux/slab.h index 66d6eb78d1c6..a96fd9310d55 100644 --- a/include/linux/slab.h +++ b/include/linux/slab.h @@ -60,7 +60,7 @@ extern void __init kmem_cache_init(void); extern kmem_cache_t *kmem_cache_create(const char *, size_t, size_t, unsigned long, void (*)(void *, kmem_cache_t *, unsigned long), void (*)(void *, kmem_cache_t *, unsigned long)); -extern int kmem_cache_destroy(kmem_cache_t *); +extern void kmem_cache_destroy(kmem_cache_t *); extern int kmem_cache_shrink(kmem_cache_t *); extern void *kmem_cache_alloc(kmem_cache_t *, gfp_t); extern void *kmem_cache_zalloc(struct kmem_cache *, gfp_t); @@ -249,7 +249,7 @@ struct kmem_cache *kmem_cache_create(const char *c, size_t, size_t, unsigned long, void (*)(void *, struct kmem_cache *, unsigned long), void (*)(void *, struct kmem_cache *, unsigned long)); -int kmem_cache_destroy(struct kmem_cache *c); +void kmem_cache_destroy(struct kmem_cache *c); void *kmem_cache_alloc(struct kmem_cache *c, gfp_t flags); void *kmem_cache_zalloc(struct kmem_cache *, gfp_t); void kmem_cache_free(struct kmem_cache *c, void *b); diff --git a/mm/slab.c b/mm/slab.c index 7a48eb1a60c8..c52ebf9c4462 100644 --- a/mm/slab.c +++ b/mm/slab.c @@ -2442,7 +2442,6 @@ EXPORT_SYMBOL(kmem_cache_shrink); * @cachep: the cache to destroy * * Remove a struct kmem_cache object from the slab cache. - * Returns 0 on success. * * It is expected this function will be called by a module when it is * unloaded. This will remove the cache completely, and avoid a duplicate @@ -2454,7 +2453,7 @@ EXPORT_SYMBOL(kmem_cache_shrink); * The caller must guarantee that noone will allocate memory from the cache * during the kmem_cache_destroy(). */ -int kmem_cache_destroy(struct kmem_cache *cachep) +void kmem_cache_destroy(struct kmem_cache *cachep) { BUG_ON(!cachep || in_interrupt()); @@ -2475,7 +2474,7 @@ int kmem_cache_destroy(struct kmem_cache *cachep) list_add(&cachep->next, &cache_chain); mutex_unlock(&cache_chain_mutex); unlock_cpu_hotplug(); - return 1; + return; } if (unlikely(cachep->flags & SLAB_DESTROY_BY_RCU)) @@ -2483,7 +2482,6 @@ int kmem_cache_destroy(struct kmem_cache *cachep) __kmem_cache_destroy(cachep); unlock_cpu_hotplug(); - return 0; } EXPORT_SYMBOL(kmem_cache_destroy); diff --git a/mm/slob.c b/mm/slob.c index 20188627347c..542394184a58 100644 --- a/mm/slob.c +++ b/mm/slob.c @@ -270,10 +270,9 @@ struct kmem_cache *kmem_cache_create(const char *name, size_t size, } EXPORT_SYMBOL(kmem_cache_create); -int kmem_cache_destroy(struct kmem_cache *c) +void kmem_cache_destroy(struct kmem_cache *c) { slob_free(c, sizeof(struct kmem_cache)); - return 0; } EXPORT_SYMBOL(kmem_cache_destroy); -- cgit v1.2.3 From 2bd0cfbde2c0a74e209acbf045f1298cc2f61e01 Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Wed, 27 Sep 2006 01:49:42 -0700 Subject: [PATCH] fix x86_64-mm-spinlock-cleanup We need processor.h for cpu_relax(). Cc: Andi Kleen Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-x86_64/spinlock.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/asm-x86_64/spinlock.h b/include/asm-x86_64/spinlock.h index be7a9e629fb2..3daf5b005905 100644 --- a/include/asm-x86_64/spinlock.h +++ b/include/asm-x86_64/spinlock.h @@ -4,6 +4,7 @@ #include #include #include +#include /* * Your basic SMP spinlocks, allowing only a single CPU anywhere -- cgit v1.2.3 From c713216deebd95d2b0ab38fef8bb2361c0180c2d Mon Sep 17 00:00:00 2001 From: Mel Gorman Date: Wed, 27 Sep 2006 01:49:43 -0700 Subject: [PATCH] Introduce mechanism for registering active regions of memory At a basic level, architectures define structures to record where active ranges of page frames are located. Once located, the code to calculate zone sizes and holes in each architecture is very similar. Some of this zone and hole sizing code is difficult to read for no good reason. This set of patches eliminates the similar-looking architecture-specific code. The patches introduce a mechanism where architectures register where the active ranges of page frames are with add_active_range(). When all areas have been discovered, free_area_init_nodes() is called to initialise the pgdat and zones. The zone sizes and holes are then calculated in an architecture independent manner. Patch 1 introduces the mechanism for registering and initialising PFN ranges Patch 2 changes ppc to use the mechanism - 139 arch-specific LOC removed Patch 3 changes x86 to use the mechanism - 136 arch-specific LOC removed Patch 4 changes x86_64 to use the mechanism - 74 arch-specific LOC removed Patch 5 changes ia64 to use the mechanism - 52 arch-specific LOC removed Patch 6 accounts for mem_map as a memory hole as the pages are not reclaimable. It adjusts the watermarks slightly Tony Luck has successfully tested for ia64 on Itanium with tiger_defconfig, gensparse_defconfig and defconfig. Bob Picco has also tested and debugged on IA64. Jack Steiner successfully boot tested on a mammoth SGI IA64-based machine. These were on patches against 2.6.17-rc1 and release 3 of these patches but there have been no ia64-changes since release 3. There are differences in the zone sizes for x86_64 as the arch-specific code for x86_64 accounts the kernel image and the starting mem_maps as memory holes but the architecture-independent code accounts the memory as present. The big benefit of this set of patches is a sizable reduction of architecture-specific code, some of which is very hairy. There should be a greater reduction when other architectures use the same mechanisms for zone and hole sizing but I lack the hardware to test on. Additional credit; Dave Hansen for the initial suggestion and comments on early patches Andy Whitcroft for reviewing early versions and catching numerous errors Tony Luck for testing and debugging on IA64 Bob Picco for fixing bugs related to pfn registration, reviewing a number of patch revisions, providing a number of suggestions on future direction and testing heavily Jack Steiner and Robin Holt for testing on IA64 and clarifying issues related to memory holes Yasunori for testing on IA64 Andi Kleen for reviewing and feeding back about x86_64 Christian Kujau for providing valuable information related to ACPI problems on x86_64 and testing potential fixes This patch: Define the structure to represent an active range of page frames within a node in an architecture independent manner. Architectures are expected to register active ranges of PFNs using add_active_range(nid, start_pfn, end_pfn) and call free_area_init_nodes() passing the PFNs of the end of each zone. Signed-off-by: Mel Gorman Signed-off-by: Bob Picco Cc: Dave Hansen Cc: Andy Whitcroft Cc: Andi Kleen Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Cc: "Keith Mannthey" Cc: "Luck, Tony" Cc: KAMEZAWA Hiroyuki Cc: Yasunori Goto Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/mm.h | 47 +++++ include/linux/mmzone.h | 10 +- mm/page_alloc.c | 552 ++++++++++++++++++++++++++++++++++++++++++++++--- 3 files changed, 584 insertions(+), 25 deletions(-) (limited to 'include') diff --git a/include/linux/mm.h b/include/linux/mm.h index 856f0ee7e84a..c0402da7cce0 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -937,6 +937,53 @@ 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); +#ifdef CONFIG_ARCH_POPULATES_NODE_MAP +/* + * With CONFIG_ARCH_POPULATES_NODE_MAP set, an architecture may initialise its + * zones, allocate the backing mem_map and account for memory holes in a more + * architecture independent manner. This is a substitute for creating the + * zone_sizes[] and zholes_size[] arrays and passing them to + * free_area_init_node() + * + * An architecture is expected to register range of page frames backed by + * physical memory with add_active_range() before calling + * free_area_init_nodes() passing in the PFN each zone ends at. At a basic + * usage, an architecture is expected to do something like + * + * unsigned long max_zone_pfns[MAX_NR_ZONES] = {max_dma, max_normal_pfn, + * max_highmem_pfn}; + * for_each_valid_physical_page_range() + * add_active_range(node_id, start_pfn, end_pfn) + * free_area_init_nodes(max_zone_pfns); + * + * If the architecture guarantees that there are no holes in the ranges + * registered with add_active_range(), free_bootmem_active_regions() + * will call free_bootmem_node() for each registered physical page range. + * Similarly sparse_memory_present_with_active_regions() calls + * memory_present() for each range when SPARSEMEM is enabled. + * + * See mm/page_alloc.c for more information on each function exposed by + * CONFIG_ARCH_POPULATES_NODE_MAP + */ +extern void free_area_init_nodes(unsigned long *max_zone_pfn); +extern void add_active_range(unsigned int nid, unsigned long start_pfn, + unsigned long end_pfn); +extern void shrink_active_range(unsigned int nid, unsigned long old_end_pfn, + unsigned long new_end_pfn); +extern void remove_all_active_ranges(void); +extern unsigned long absent_pages_in_range(unsigned long start_pfn, + unsigned long end_pfn); +extern void get_pfn_range_for_nid(unsigned int nid, + unsigned long *start_pfn, unsigned long *end_pfn); +extern unsigned long find_min_pfn_with_active_regions(void); +extern unsigned long find_max_pfn_with_active_regions(void); +extern void free_bootmem_with_active_regions(int nid, + unsigned long max_low_pfn); +extern void sparse_memory_present_with_active_regions(int nid); +#ifndef CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID +extern int early_pfn_to_nid(unsigned long pfn); +#endif /* CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID */ +#endif /* CONFIG_ARCH_POPULATES_NODE_MAP */ extern void memmap_init_zone(unsigned long, int, unsigned long, unsigned long); extern void setup_per_zone_pages_min(void); extern void mem_init(void); diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index 3693f1a52788..7fa1cbe9fa7a 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -305,6 +305,13 @@ struct zonelist { struct zone *zones[MAX_NUMNODES * MAX_NR_ZONES + 1]; // NULL delimited }; +#ifdef CONFIG_ARCH_POPULATES_NODE_MAP +struct node_active_region { + unsigned long start_pfn; + unsigned long end_pfn; + int nid; +}; +#endif /* CONFIG_ARCH_POPULATES_NODE_MAP */ /* * The pg_data_t structure is used in machines with CONFIG_DISCONTIGMEM @@ -518,7 +525,8 @@ extern struct zone *next_zone(struct zone *zone); #endif -#ifndef CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID +#if !defined(CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID) && \ + !defined(CONFIG_ARCH_POPULATES_NODE_MAP) #define early_pfn_to_nid(nid) (0UL) #endif diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 9810f0a60db7..26c9939857fa 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -37,6 +37,8 @@ #include #include #include +#include +#include #include #include @@ -103,6 +105,33 @@ int min_free_kbytes = 1024; unsigned long __meminitdata nr_kernel_pages; unsigned long __meminitdata nr_all_pages; +#ifdef CONFIG_ARCH_POPULATES_NODE_MAP + /* + * MAX_ACTIVE_REGIONS determines the maxmimum number of distinct + * ranges of memory (RAM) that may be registered with add_active_range(). + * Ranges passed to add_active_range() will be merged if possible + * so the number of times add_active_range() can be called is + * related to the number of nodes and the number of holes + */ + #ifdef CONFIG_MAX_ACTIVE_REGIONS + /* Allow an architecture to set MAX_ACTIVE_REGIONS to save memory */ + #define MAX_ACTIVE_REGIONS CONFIG_MAX_ACTIVE_REGIONS + #else + #if MAX_NUMNODES >= 32 + /* If there can be many nodes, allow up to 50 holes per node */ + #define MAX_ACTIVE_REGIONS (MAX_NUMNODES*50) + #else + /* By default, allow up to 256 distinct regions */ + #define MAX_ACTIVE_REGIONS 256 + #endif + #endif + + struct node_active_region __initdata early_node_map[MAX_ACTIVE_REGIONS]; + int __initdata nr_nodemap_entries; + unsigned long __initdata arch_zone_lowest_possible_pfn[MAX_NR_ZONES]; + unsigned long __initdata arch_zone_highest_possible_pfn[MAX_NR_ZONES]; +#endif /* CONFIG_ARCH_POPULATES_NODE_MAP */ + #ifdef CONFIG_DEBUG_VM static int page_outside_zone_boundaries(struct zone *zone, struct page *page) { @@ -1642,25 +1671,6 @@ static inline unsigned long wait_table_bits(unsigned long size) #define LONG_ALIGN(x) (((x)+(sizeof(long))-1)&~((sizeof(long))-1)) -static void __init calculate_zone_totalpages(struct pglist_data *pgdat, - unsigned long *zones_size, unsigned long *zholes_size) -{ - unsigned long realtotalpages, totalpages = 0; - enum zone_type i; - - for (i = 0; i < MAX_NR_ZONES; i++) - totalpages += zones_size[i]; - pgdat->node_spanned_pages = totalpages; - - realtotalpages = totalpages; - if (zholes_size) - for (i = 0; i < MAX_NR_ZONES; i++) - realtotalpages -= zholes_size[i]; - pgdat->node_present_pages = realtotalpages; - printk(KERN_DEBUG "On node %d totalpages: %lu\n", pgdat->node_id, realtotalpages); -} - - /* * Initially all pages are reserved - free ones are freed * up by free_all_bootmem() once the early boot process is @@ -1977,6 +1987,272 @@ __meminit int init_currently_empty_zone(struct zone *zone, return 0; } +#ifdef CONFIG_ARCH_POPULATES_NODE_MAP +/* + * Basic iterator support. Return the first range of PFNs for a node + * Note: nid == MAX_NUMNODES returns first region regardless of node + */ +static int __init first_active_region_index_in_nid(int nid) +{ + int i; + + for (i = 0; i < nr_nodemap_entries; i++) + if (nid == MAX_NUMNODES || early_node_map[i].nid == nid) + return i; + + return -1; +} + +/* + * Basic iterator support. Return the next active range of PFNs for a node + * Note: nid == MAX_NUMNODES returns next region regardles of node + */ +static int __init next_active_region_index_in_nid(int index, int nid) +{ + for (index = index + 1; index < nr_nodemap_entries; index++) + if (nid == MAX_NUMNODES || early_node_map[index].nid == nid) + return index; + + return -1; +} + +#ifndef CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID +/* + * Required by SPARSEMEM. Given a PFN, return what node the PFN is on. + * Architectures may implement their own version but if add_active_range() + * was used and there are no special requirements, this is a convenient + * alternative + */ +int __init early_pfn_to_nid(unsigned long pfn) +{ + int i; + + for (i = 0; i < nr_nodemap_entries; i++) { + unsigned long start_pfn = early_node_map[i].start_pfn; + unsigned long end_pfn = early_node_map[i].end_pfn; + + if (start_pfn <= pfn && pfn < end_pfn) + return early_node_map[i].nid; + } + + return 0; +} +#endif /* CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID */ + +/* Basic iterator support to walk early_node_map[] */ +#define for_each_active_range_index_in_nid(i, nid) \ + for (i = first_active_region_index_in_nid(nid); i != -1; \ + i = next_active_region_index_in_nid(i, nid)) + +/** + * free_bootmem_with_active_regions - Call free_bootmem_node for each active range + * @nid: The node to free memory on. If MAX_NUMNODES, all nodes are freed + * @max_low_pfn: The highest PFN that till be passed to free_bootmem_node + * + * If an architecture guarantees that all ranges registered with + * add_active_ranges() contain no holes and may be freed, this + * this function may be used instead of calling free_bootmem() manually. + */ +void __init free_bootmem_with_active_regions(int nid, + unsigned long max_low_pfn) +{ + int i; + + for_each_active_range_index_in_nid(i, nid) { + unsigned long size_pages = 0; + unsigned long end_pfn = early_node_map[i].end_pfn; + + if (early_node_map[i].start_pfn >= max_low_pfn) + continue; + + if (end_pfn > max_low_pfn) + end_pfn = max_low_pfn; + + size_pages = end_pfn - early_node_map[i].start_pfn; + free_bootmem_node(NODE_DATA(early_node_map[i].nid), + PFN_PHYS(early_node_map[i].start_pfn), + size_pages << PAGE_SHIFT); + } +} + +/** + * sparse_memory_present_with_active_regions - Call memory_present for each active range + * @nid: The node to call memory_present for. If MAX_NUMNODES, all nodes will be used + * + * If an architecture guarantees that all ranges registered with + * add_active_ranges() contain no holes and may be freed, this + * this function may be used instead of calling memory_present() manually. + */ +void __init sparse_memory_present_with_active_regions(int nid) +{ + int i; + + for_each_active_range_index_in_nid(i, nid) + memory_present(early_node_map[i].nid, + early_node_map[i].start_pfn, + early_node_map[i].end_pfn); +} + +/** + * get_pfn_range_for_nid - Return the start and end page frames for a node + * @nid: The nid to return the range for. If MAX_NUMNODES, the min and max PFN are returned + * @start_pfn: Passed by reference. On return, it will have the node start_pfn + * @end_pfn: Passed by reference. On return, it will have the node end_pfn + * + * It returns the start and end page frame of a node based on information + * provided by an arch calling add_active_range(). If called for a node + * with no available memory, a warning is printed and the start and end + * PFNs will be 0 + */ +void __init get_pfn_range_for_nid(unsigned int nid, + unsigned long *start_pfn, unsigned long *end_pfn) +{ + int i; + *start_pfn = -1UL; + *end_pfn = 0; + + for_each_active_range_index_in_nid(i, nid) { + *start_pfn = min(*start_pfn, early_node_map[i].start_pfn); + *end_pfn = max(*end_pfn, early_node_map[i].end_pfn); + } + + if (*start_pfn == -1UL) { + printk(KERN_WARNING "Node %u active with no memory\n", nid); + *start_pfn = 0; + } +} + +/* + * Return the number of pages a zone spans in a node, including holes + * present_pages = zone_spanned_pages_in_node() - zone_absent_pages_in_node() + */ +unsigned long __init zone_spanned_pages_in_node(int nid, + unsigned long zone_type, + unsigned long *ignored) +{ + unsigned long node_start_pfn, node_end_pfn; + unsigned long zone_start_pfn, zone_end_pfn; + + /* Get the start and end of the node and zone */ + get_pfn_range_for_nid(nid, &node_start_pfn, &node_end_pfn); + zone_start_pfn = arch_zone_lowest_possible_pfn[zone_type]; + zone_end_pfn = arch_zone_highest_possible_pfn[zone_type]; + + /* Check that this node has pages within the zone's required range */ + if (zone_end_pfn < node_start_pfn || zone_start_pfn > node_end_pfn) + return 0; + + /* Move the zone boundaries inside the node if necessary */ + zone_end_pfn = min(zone_end_pfn, node_end_pfn); + zone_start_pfn = max(zone_start_pfn, node_start_pfn); + + /* Return the spanned pages */ + return zone_end_pfn - zone_start_pfn; +} + +/* + * Return the number of holes in a range on a node. If nid is MAX_NUMNODES, + * then all holes in the requested range will be accounted for + */ +unsigned long __init __absent_pages_in_range(int nid, + unsigned long range_start_pfn, + unsigned long range_end_pfn) +{ + int i = 0; + unsigned long prev_end_pfn = 0, hole_pages = 0; + unsigned long start_pfn; + + /* Find the end_pfn of the first active range of pfns in the node */ + i = first_active_region_index_in_nid(nid); + if (i == -1) + return 0; + + prev_end_pfn = early_node_map[i].start_pfn; + + /* Find all holes for the zone within the node */ + for (; i != -1; i = next_active_region_index_in_nid(i, nid)) { + + /* No need to continue if prev_end_pfn is outside the zone */ + if (prev_end_pfn >= range_end_pfn) + break; + + /* Make sure the end of the zone is not within the hole */ + start_pfn = min(early_node_map[i].start_pfn, range_end_pfn); + prev_end_pfn = max(prev_end_pfn, range_start_pfn); + + /* Update the hole size cound and move on */ + if (start_pfn > range_start_pfn) { + BUG_ON(prev_end_pfn > start_pfn); + hole_pages += start_pfn - prev_end_pfn; + } + prev_end_pfn = early_node_map[i].end_pfn; + } + + return hole_pages; +} + +/** + * absent_pages_in_range - Return number of page frames in holes within a range + * @start_pfn: The start PFN to start searching for holes + * @end_pfn: The end PFN to stop searching for holes + * + * It returns the number of pages frames in memory holes within a range + */ +unsigned long __init absent_pages_in_range(unsigned long start_pfn, + unsigned long end_pfn) +{ + return __absent_pages_in_range(MAX_NUMNODES, start_pfn, end_pfn); +} + +/* Return the number of page frames in holes in a zone on a node */ +unsigned long __init zone_absent_pages_in_node(int nid, + unsigned long zone_type, + unsigned long *ignored) +{ + return __absent_pages_in_range(nid, + arch_zone_lowest_possible_pfn[zone_type], + arch_zone_highest_possible_pfn[zone_type]); +} +#else +static inline unsigned long zone_spanned_pages_in_node(int nid, + unsigned long zone_type, + unsigned long *zones_size) +{ + return zones_size[zone_type]; +} + +static inline unsigned long zone_absent_pages_in_node(int nid, + unsigned long zone_type, + unsigned long *zholes_size) +{ + if (!zholes_size) + return 0; + + return zholes_size[zone_type]; +} +#endif + +static void __init calculate_node_totalpages(struct pglist_data *pgdat, + unsigned long *zones_size, unsigned long *zholes_size) +{ + unsigned long realtotalpages, totalpages = 0; + enum zone_type i; + + for (i = 0; i < MAX_NR_ZONES; i++) + totalpages += zone_spanned_pages_in_node(pgdat->node_id, i, + zones_size); + pgdat->node_spanned_pages = totalpages; + + realtotalpages = totalpages; + for (i = 0; i < MAX_NR_ZONES; i++) + realtotalpages -= + zone_absent_pages_in_node(pgdat->node_id, i, + zholes_size); + pgdat->node_present_pages = realtotalpages; + printk(KERN_DEBUG "On node %d totalpages: %lu\n", pgdat->node_id, + realtotalpages); +} + /* * Set up the zone data structures: * - mark all pages reserved @@ -2000,9 +2276,9 @@ static void __meminit free_area_init_core(struct pglist_data *pgdat, struct zone *zone = pgdat->node_zones + j; unsigned long size, realsize; - realsize = size = zones_size[j]; - if (zholes_size) - realsize -= zholes_size[j]; + size = zone_spanned_pages_in_node(nid, j, zones_size); + realsize = size - zone_absent_pages_in_node(nid, j, + zholes_size); if (!is_highmem_idx(j)) nr_kernel_pages += realsize; @@ -2073,8 +2349,13 @@ static void __init alloc_node_mem_map(struct pglist_data *pgdat) /* * With no DISCONTIG, the global mem_map is just set as node 0's */ - if (pgdat == NODE_DATA(0)) + if (pgdat == NODE_DATA(0)) { mem_map = NODE_DATA(0)->node_mem_map; +#ifdef CONFIG_ARCH_POPULATES_NODE_MAP + if (page_to_pfn(mem_map) != pgdat->node_start_pfn) + mem_map -= pgdat->node_start_pfn; +#endif /* CONFIG_ARCH_POPULATES_NODE_MAP */ + } #endif #endif /* CONFIG_FLAT_NODE_MEM_MAP */ } @@ -2085,13 +2366,236 @@ void __meminit free_area_init_node(int nid, struct pglist_data *pgdat, { pgdat->node_id = nid; pgdat->node_start_pfn = node_start_pfn; - calculate_zone_totalpages(pgdat, zones_size, zholes_size); + calculate_node_totalpages(pgdat, zones_size, zholes_size); alloc_node_mem_map(pgdat); free_area_init_core(pgdat, zones_size, zholes_size); } +#ifdef CONFIG_ARCH_POPULATES_NODE_MAP +/** + * add_active_range - Register a range of PFNs backed by physical memory + * @nid: The node ID the range resides on + * @start_pfn: The start PFN of the available physical memory + * @end_pfn: The end PFN of the available physical memory + * + * These ranges are stored in an early_node_map[] and later used by + * free_area_init_nodes() to calculate zone sizes and holes. If the + * range spans a memory hole, it is up to the architecture to ensure + * the memory is not freed by the bootmem allocator. If possible + * the range being registered will be merged with existing ranges. + */ +void __init add_active_range(unsigned int nid, unsigned long start_pfn, + unsigned long end_pfn) +{ + int i; + + printk(KERN_DEBUG "Entering add_active_range(%d, %lu, %lu) " + "%d entries of %d used\n", + nid, start_pfn, end_pfn, + nr_nodemap_entries, MAX_ACTIVE_REGIONS); + + /* Merge with existing active regions if possible */ + for (i = 0; i < nr_nodemap_entries; i++) { + if (early_node_map[i].nid != nid) + continue; + + /* Skip if an existing region covers this new one */ + if (start_pfn >= early_node_map[i].start_pfn && + end_pfn <= early_node_map[i].end_pfn) + return; + + /* Merge forward if suitable */ + if (start_pfn <= early_node_map[i].end_pfn && + end_pfn > early_node_map[i].end_pfn) { + early_node_map[i].end_pfn = end_pfn; + return; + } + + /* Merge backward if suitable */ + if (start_pfn < early_node_map[i].end_pfn && + end_pfn >= early_node_map[i].start_pfn) { + early_node_map[i].start_pfn = start_pfn; + return; + } + } + + /* Check that early_node_map is large enough */ + if (i >= MAX_ACTIVE_REGIONS) { + printk(KERN_CRIT "More than %d memory regions, truncating\n", + MAX_ACTIVE_REGIONS); + return; + } + + early_node_map[i].nid = nid; + early_node_map[i].start_pfn = start_pfn; + early_node_map[i].end_pfn = end_pfn; + nr_nodemap_entries = i + 1; +} + +/** + * shrink_active_range - Shrink an existing registered range of PFNs + * @nid: The node id the range is on that should be shrunk + * @old_end_pfn: The old end PFN of the range + * @new_end_pfn: The new PFN of the range + * + * i386 with NUMA use alloc_remap() to store a node_mem_map on a local node. + * The map is kept at the end physical page range that has already been + * registered with add_active_range(). This function allows an arch to shrink + * an existing registered range. + */ +void __init shrink_active_range(unsigned int nid, unsigned long old_end_pfn, + unsigned long new_end_pfn) +{ + int i; + + /* Find the old active region end and shrink */ + for_each_active_range_index_in_nid(i, nid) + if (early_node_map[i].end_pfn == old_end_pfn) { + early_node_map[i].end_pfn = new_end_pfn; + break; + } +} + +/** + * remove_all_active_ranges - Remove all currently registered regions + * During discovery, it may be found that a table like SRAT is invalid + * and an alternative discovery method must be used. This function removes + * all currently registered regions. + */ +void __init remove_all_active_ranges() +{ + memset(early_node_map, 0, sizeof(early_node_map)); + nr_nodemap_entries = 0; +} + +/* Compare two active node_active_regions */ +static int __init cmp_node_active_region(const void *a, const void *b) +{ + struct node_active_region *arange = (struct node_active_region *)a; + struct node_active_region *brange = (struct node_active_region *)b; + + /* Done this way to avoid overflows */ + if (arange->start_pfn > brange->start_pfn) + return 1; + if (arange->start_pfn < brange->start_pfn) + return -1; + + return 0; +} + +/* sort the node_map by start_pfn */ +static void __init sort_node_map(void) +{ + sort(early_node_map, (size_t)nr_nodemap_entries, + sizeof(struct node_active_region), + cmp_node_active_region, NULL); +} + +/* Find the lowest pfn for a node. This depends on a sorted early_node_map */ +unsigned long __init find_min_pfn_for_node(unsigned long nid) +{ + int i; + + /* Assuming a sorted map, the first range found has the starting pfn */ + for_each_active_range_index_in_nid(i, nid) + return early_node_map[i].start_pfn; + + printk(KERN_WARNING "Could not find start_pfn for node %lu\n", nid); + return 0; +} + +/** + * find_min_pfn_with_active_regions - Find the minimum PFN registered + * + * It returns the minimum PFN based on information provided via + * add_active_range() + */ +unsigned long __init find_min_pfn_with_active_regions(void) +{ + return find_min_pfn_for_node(MAX_NUMNODES); +} + +/** + * find_max_pfn_with_active_regions - Find the maximum PFN registered + * + * It returns the maximum PFN based on information provided via + * add_active_range() + */ +unsigned long __init find_max_pfn_with_active_regions(void) +{ + int i; + unsigned long max_pfn = 0; + + for (i = 0; i < nr_nodemap_entries; i++) + max_pfn = max(max_pfn, early_node_map[i].end_pfn); + + return max_pfn; +} + +/** + * free_area_init_nodes - Initialise all pg_data_t and zone data + * @arch_max_dma_pfn: The maximum PFN usable for ZONE_DMA + * @arch_max_dma32_pfn: The maximum PFN usable for ZONE_DMA32 + * @arch_max_low_pfn: The maximum PFN usable for ZONE_NORMAL + * @arch_max_high_pfn: The maximum PFN usable for ZONE_HIGHMEM + * + * This will call free_area_init_node() for each active node in the system. + * Using the page ranges provided by add_active_range(), the size of each + * zone in each node and their holes is calculated. If the maximum PFN + * between two adjacent zones match, it is assumed that the zone is empty. + * For example, if arch_max_dma_pfn == arch_max_dma32_pfn, it is assumed + * that arch_max_dma32_pfn has no pages. It is also assumed that a zone + * starts where the previous one ended. For example, ZONE_DMA32 starts + * at arch_max_dma_pfn. + */ +void __init free_area_init_nodes(unsigned long *max_zone_pfn) +{ + unsigned long nid; + enum zone_type i; + + /* Record where the zone boundaries are */ + memset(arch_zone_lowest_possible_pfn, 0, + sizeof(arch_zone_lowest_possible_pfn)); + memset(arch_zone_highest_possible_pfn, 0, + sizeof(arch_zone_highest_possible_pfn)); + arch_zone_lowest_possible_pfn[0] = find_min_pfn_with_active_regions(); + arch_zone_highest_possible_pfn[0] = max_zone_pfn[0]; + for (i = 1; i < MAX_NR_ZONES; i++) { + arch_zone_lowest_possible_pfn[i] = + arch_zone_highest_possible_pfn[i-1]; + arch_zone_highest_possible_pfn[i] = + max(max_zone_pfn[i], arch_zone_lowest_possible_pfn[i]); + } + + /* Regions in the early_node_map can be in any order */ + sort_node_map(); + + /* Print out the zone ranges */ + printk("Zone PFN ranges:\n"); + for (i = 0; i < MAX_NR_ZONES; i++) + printk(" %-8s %8lu -> %8lu\n", + zone_names[i], + arch_zone_lowest_possible_pfn[i], + arch_zone_highest_possible_pfn[i]); + + /* Print out the early_node_map[] */ + printk("early_node_map[%d] active PFN ranges\n", nr_nodemap_entries); + for (i = 0; i < nr_nodemap_entries; i++) + printk(" %3d: %8lu -> %8lu\n", early_node_map[i].nid, + early_node_map[i].start_pfn, + early_node_map[i].end_pfn); + + /* Initialise every node */ + for_each_online_node(nid) { + pg_data_t *pgdat = NODE_DATA(nid); + free_area_init_node(nid, pgdat, NULL, + find_min_pfn_for_node(nid), NULL); + } +} +#endif /* CONFIG_ARCH_POPULATES_NODE_MAP */ + #ifndef CONFIG_NEED_MULTIPLE_NODES static bootmem_data_t contig_bootmem_data; struct pglist_data contig_page_data = { .bdata = &contig_bootmem_data }; -- cgit v1.2.3 From 5cb248abf5ab65ab543b2d5fc16c738b28031fc0 Mon Sep 17 00:00:00 2001 From: Mel Gorman Date: Wed, 27 Sep 2006 01:49:52 -0700 Subject: [PATCH] Have x86_64 use add_active_range() and free_area_init_nodes Size zones and holes in an architecture independent manner for x86_64. Signed-off-by: Mel Gorman Cc: Dave Hansen Cc: Andy Whitcroft Cc: Andi Kleen Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Cc: "Keith Mannthey" Cc: "Luck, Tony" Cc: KAMEZAWA Hiroyuki Cc: Yasunori Goto Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/x86_64/Kconfig | 3 ++ arch/x86_64/kernel/e820.c | 125 ++++++++++++++++---------------------------- arch/x86_64/kernel/setup.c | 7 ++- arch/x86_64/mm/init.c | 65 +++-------------------- arch/x86_64/mm/k8topology.c | 3 ++ arch/x86_64/mm/numa.c | 21 ++++---- arch/x86_64/mm/srat.c | 11 ++-- include/asm-x86_64/e820.h | 5 +- include/asm-x86_64/proto.h | 2 - 9 files changed, 84 insertions(+), 158 deletions(-) (limited to 'include') diff --git a/arch/x86_64/Kconfig b/arch/x86_64/Kconfig index efe249e7d6b3..326aff7a87ea 100644 --- a/arch/x86_64/Kconfig +++ b/arch/x86_64/Kconfig @@ -85,6 +85,9 @@ config ARCH_MAY_HAVE_PC_FDC bool default y +config ARCH_POPULATES_NODE_MAP + def_bool y + config DMI bool default y diff --git a/arch/x86_64/kernel/e820.c b/arch/x86_64/kernel/e820.c index c0af3828df45..b3f0908668ec 100644 --- a/arch/x86_64/kernel/e820.c +++ b/arch/x86_64/kernel/e820.c @@ -162,59 +162,14 @@ unsigned long __init find_e820_area(unsigned long start, unsigned long end, unsi return -1UL; } -/* - * Free bootmem based on the e820 table for a node. - */ -void __init e820_bootmem_free(pg_data_t *pgdat, unsigned long start,unsigned long end) -{ - int i; - for (i = 0; i < e820.nr_map; i++) { - struct e820entry *ei = &e820.map[i]; - unsigned long last, addr; - - if (ei->type != E820_RAM || - ei->addr+ei->size <= start || - ei->addr >= end) - continue; - - addr = round_up(ei->addr, PAGE_SIZE); - if (addr < start) - addr = start; - - last = round_down(ei->addr + ei->size, PAGE_SIZE); - if (last >= end) - last = end; - - if (last > addr && last-addr >= PAGE_SIZE) - free_bootmem_node(pgdat, addr, last-addr); - } -} - /* * Find the highest page frame number we have available */ unsigned long __init e820_end_of_ram(void) { - int i; unsigned long end_pfn = 0; + end_pfn = find_max_pfn_with_active_regions(); - for (i = 0; i < e820.nr_map; i++) { - struct e820entry *ei = &e820.map[i]; - unsigned long start, end; - - start = round_up(ei->addr, PAGE_SIZE); - end = round_down(ei->addr + ei->size, PAGE_SIZE); - if (start >= end) - continue; - if (ei->type == E820_RAM) { - if (end > end_pfn<>PAGE_SHIFT; - } else { - if (end > end_pfn_map<>PAGE_SHIFT; - } - } - if (end_pfn > end_pfn_map) end_pfn_map = end_pfn; if (end_pfn_map > MAXMEM>>PAGE_SHIFT) @@ -224,43 +179,10 @@ unsigned long __init e820_end_of_ram(void) if (end_pfn > end_pfn_map) end_pfn = end_pfn_map; + printk("end_pfn_map = %lu\n", end_pfn_map); return end_pfn; } -/* - * Compute how much memory is missing in a range. - * Unlike the other functions in this file the arguments are in page numbers. - */ -unsigned long __init -e820_hole_size(unsigned long start_pfn, unsigned long end_pfn) -{ - unsigned long ram = 0; - unsigned long start = start_pfn << PAGE_SHIFT; - unsigned long end = end_pfn << PAGE_SHIFT; - int i; - for (i = 0; i < e820.nr_map; i++) { - struct e820entry *ei = &e820.map[i]; - unsigned long last, addr; - - if (ei->type != E820_RAM || - ei->addr+ei->size <= start || - ei->addr >= end) - continue; - - addr = round_up(ei->addr, PAGE_SIZE); - if (addr < start) - addr = start; - - last = round_down(ei->addr + ei->size, PAGE_SIZE); - if (last >= end) - last = end; - - if (last > addr) - ram += last - addr; - } - return ((end - start) - ram) >> PAGE_SHIFT; -} - /* * Mark e820 reserved areas as busy for the resource manager. */ @@ -342,6 +264,49 @@ void __init e820_mark_nosave_regions(void) } } +/* Walk the e820 map and register active regions within a node */ +void __init +e820_register_active_regions(int nid, unsigned long start_pfn, + unsigned long end_pfn) +{ + int i; + unsigned long ei_startpfn, ei_endpfn; + for (i = 0; i < e820.nr_map; i++) { + struct e820entry *ei = &e820.map[i]; + ei_startpfn = round_up(ei->addr, PAGE_SIZE) >> PAGE_SHIFT; + ei_endpfn = round_down(ei->addr + ei->size, PAGE_SIZE) + >> PAGE_SHIFT; + + /* Skip map entries smaller than a page */ + if (ei_startpfn > ei_endpfn) + continue; + + /* Check if end_pfn_map should be updated */ + if (ei->type != E820_RAM && ei_endpfn > end_pfn_map) + end_pfn_map = ei_endpfn; + + /* Skip if map is outside the node */ + if (ei->type != E820_RAM || + ei_endpfn <= start_pfn || + ei_startpfn >= end_pfn) + continue; + + /* Check for overlaps */ + if (ei_startpfn < start_pfn) + ei_startpfn = start_pfn; + if (ei_endpfn > end_pfn) + ei_endpfn = end_pfn; + + /* Obey end_user_pfn to save on memmap */ + if (ei_startpfn >= end_user_pfn) + continue; + if (ei_endpfn > end_user_pfn) + ei_endpfn = end_user_pfn; + + add_active_range(nid, ei_startpfn, ei_endpfn); + } +} + /* * Add a memory region to the kernel e820 map. */ diff --git a/arch/x86_64/kernel/setup.c b/arch/x86_64/kernel/setup.c index f98e48cae6da..0b00bb2ea576 100644 --- a/arch/x86_64/kernel/setup.c +++ b/arch/x86_64/kernel/setup.c @@ -292,7 +292,8 @@ contig_initmem_init(unsigned long start_pfn, unsigned long end_pfn) if (bootmap == -1L) panic("Cannot find bootmem map of size %ld\n",bootmap_size); bootmap_size = init_bootmem(bootmap >> PAGE_SHIFT, end_pfn); - e820_bootmem_free(NODE_DATA(0), 0, end_pfn << PAGE_SHIFT); + e820_register_active_regions(0, start_pfn, end_pfn); + free_bootmem_with_active_regions(0, end_pfn); reserve_bootmem(bootmap, bootmap_size); } #endif @@ -384,6 +385,7 @@ void __init setup_arch(char **cmdline_p) finish_e820_parsing(); + e820_register_active_regions(0, 0, -1UL); /* * partially used pages are not usable - thus * we are rounding upwards: @@ -414,6 +416,9 @@ void __init setup_arch(char **cmdline_p) max_pfn = end_pfn; high_memory = (void *)__va(end_pfn * PAGE_SIZE - 1) + 1; + /* Remove active ranges so rediscovery with NUMA-awareness happens */ + remove_all_active_ranges(); + #ifdef CONFIG_ACPI_NUMA /* * Parse SRAT to discover nodes. diff --git a/arch/x86_64/mm/init.c b/arch/x86_64/mm/init.c index 1e4669fa5734..47928399e38a 100644 --- a/arch/x86_64/mm/init.c +++ b/arch/x86_64/mm/init.c @@ -403,69 +403,15 @@ void __cpuinit zap_low_mappings(int cpu) __flush_tlb_all(); } -/* Compute zone sizes for the DMA and DMA32 zones in a node. */ -__init void -size_zones(unsigned long *z, unsigned long *h, - unsigned long start_pfn, unsigned long end_pfn) -{ - int i; - unsigned long w; - - for (i = 0; i < MAX_NR_ZONES; i++) - z[i] = 0; - - if (start_pfn < MAX_DMA_PFN) - z[ZONE_DMA] = MAX_DMA_PFN - start_pfn; - if (start_pfn < MAX_DMA32_PFN) { - unsigned long dma32_pfn = MAX_DMA32_PFN; - if (dma32_pfn > end_pfn) - dma32_pfn = end_pfn; - z[ZONE_DMA32] = dma32_pfn - start_pfn; - } - z[ZONE_NORMAL] = end_pfn - start_pfn; - - /* Remove lower zones from higher ones. */ - w = 0; - for (i = 0; i < MAX_NR_ZONES; i++) { - if (z[i]) - z[i] -= w; - w += z[i]; - } - - /* Compute holes */ - w = start_pfn; - for (i = 0; i < MAX_NR_ZONES; i++) { - unsigned long s = w; - w += z[i]; - h[i] = e820_hole_size(s, w); - } - - /* Add the space pace needed for mem_map to the holes too. */ - for (i = 0; i < MAX_NR_ZONES; i++) - h[i] += (z[i] * sizeof(struct page)) / PAGE_SIZE; - - /* The 16MB DMA zone has the kernel and other misc mappings. - Account them too */ - if (h[ZONE_DMA]) { - h[ZONE_DMA] += dma_reserve; - if (h[ZONE_DMA] >= z[ZONE_DMA]) { - printk(KERN_WARNING - "Kernel too large and filling up ZONE_DMA?\n"); - h[ZONE_DMA] = z[ZONE_DMA]; - } - } -} - #ifndef CONFIG_NUMA void __init paging_init(void) { - unsigned long zones[MAX_NR_ZONES], holes[MAX_NR_ZONES]; - + unsigned long max_zone_pfns[MAX_NR_ZONES] = {MAX_DMA_PFN, + MAX_DMA32_PFN, + end_pfn}; memory_present(0, 0, end_pfn); sparse_init(); - size_zones(zones, holes, 0, end_pfn); - free_area_init_node(0, NODE_DATA(0), zones, - __pa(PAGE_OFFSET) >> PAGE_SHIFT, holes); + free_area_init_nodes(max_zone_pfns); } #endif @@ -608,7 +554,8 @@ void __init mem_init(void) #else totalram_pages = free_all_bootmem(); #endif - reservedpages = end_pfn - totalram_pages - e820_hole_size(0, end_pfn); + reservedpages = end_pfn - totalram_pages - + absent_pages_in_range(0, end_pfn); after_bootmem = 1; diff --git a/arch/x86_64/mm/k8topology.c b/arch/x86_64/mm/k8topology.c index 5cf594f9230d..b5b8dba28b4e 100644 --- a/arch/x86_64/mm/k8topology.c +++ b/arch/x86_64/mm/k8topology.c @@ -149,6 +149,9 @@ int __init k8_scan_nodes(unsigned long start, unsigned long end) nodes[nodeid].start = base; nodes[nodeid].end = limit; + e820_register_active_regions(nodeid, + nodes[nodeid].start >> PAGE_SHIFT, + nodes[nodeid].end >> PAGE_SHIFT); prevbase = base; diff --git a/arch/x86_64/mm/numa.c b/arch/x86_64/mm/numa.c index 322bf45fc36a..829a008bd39b 100644 --- a/arch/x86_64/mm/numa.c +++ b/arch/x86_64/mm/numa.c @@ -161,7 +161,7 @@ void __init setup_node_bootmem(int nodeid, unsigned long start, unsigned long en bootmap_start >> PAGE_SHIFT, start_pfn, end_pfn); - e820_bootmem_free(NODE_DATA(nodeid), start, end); + free_bootmem_with_active_regions(nodeid, end); reserve_bootmem_node(NODE_DATA(nodeid), nodedata_phys, pgdat_size); reserve_bootmem_node(NODE_DATA(nodeid), bootmap_start, bootmap_pages<> PAGE_SHIFT, + nodes[i].end >> PAGE_SHIFT); setup_node_bootmem(i, nodes[i].start, nodes[i].end); + } numa_init_array(); return 0; } @@ -299,6 +296,7 @@ void __init numa_initmem_init(unsigned long start_pfn, unsigned long end_pfn) for (i = 0; i < NR_CPUS; i++) numa_set_node(i, 0); node_to_cpumask[0] = cpumask_of_cpu(0); + e820_register_active_regions(0, start_pfn, end_pfn); setup_node_bootmem(0, start_pfn << PAGE_SHIFT, end_pfn << PAGE_SHIFT); } @@ -340,12 +338,17 @@ static void __init arch_sparse_init(void) void __init paging_init(void) { int i; + unsigned long max_zone_pfns[MAX_NR_ZONES] = { MAX_DMA_PFN, + MAX_DMA32_PFN, + end_pfn}; arch_sparse_init(); for_each_online_node(i) { setup_node_zones(i); } + + free_area_init_nodes(max_zone_pfns); } static __init int numa_setup(char *opt) diff --git a/arch/x86_64/mm/srat.c b/arch/x86_64/mm/srat.c index ca10701e7a90..7b50bb1caabe 100644 --- a/arch/x86_64/mm/srat.c +++ b/arch/x86_64/mm/srat.c @@ -93,6 +93,7 @@ static __init void bad_srat(void) apicid_to_node[i] = NUMA_NO_NODE; for (i = 0; i < MAX_NUMNODES; i++) nodes_add[i].start = nodes[i].end = 0; + remove_all_active_ranges(); } static __init inline int srat_disabled(void) @@ -175,7 +176,7 @@ static int hotadd_enough_memory(struct bootnode *nd) if (mem < 0) return 0; - allowed = (end_pfn - e820_hole_size(0, end_pfn)) * PAGE_SIZE; + allowed = (end_pfn - absent_pages_in_range(0, end_pfn)) * PAGE_SIZE; allowed = (allowed / 100) * hotadd_percent; if (allocated + mem > allowed) { unsigned long range; @@ -225,7 +226,7 @@ static int reserve_hotadd(int node, unsigned long start, unsigned long end) } /* This check might be a bit too strict, but I'm keeping it for now. */ - if (e820_hole_size(s_pfn, e_pfn) != e_pfn - s_pfn) { + if (absent_pages_in_range(s_pfn, e_pfn) != e_pfn - s_pfn) { printk(KERN_ERR "SRAT: Hotplug area has existing memory\n"); return -1; } @@ -319,6 +320,8 @@ acpi_numa_memory_affinity_init(struct acpi_table_memory_affinity *ma) printk(KERN_INFO "SRAT: Node %u PXM %u %Lx-%Lx\n", node, pxm, nd->start, nd->end); + e820_register_active_regions(node, nd->start >> PAGE_SHIFT, + nd->end >> PAGE_SHIFT); #ifdef RESERVE_HOTADD if (ma->flags.hot_pluggable && reserve_hotadd(node, start, end) < 0) { @@ -343,13 +346,13 @@ static int nodes_cover_memory(void) unsigned long s = nodes[i].start >> PAGE_SHIFT; unsigned long e = nodes[i].end >> PAGE_SHIFT; pxmram += e - s; - pxmram -= e820_hole_size(s, e); + pxmram -= absent_pages_in_range(s, e); pxmram -= nodes_add[i].end - nodes_add[i].start; if ((long)pxmram < 0) pxmram = 0; } - e820ram = end_pfn - e820_hole_size(0, end_pfn); + e820ram = end_pfn - absent_pages_in_range(0, end_pfn); /* We seem to lose 3 pages somewhere. Allow a bit of slack. */ if ((long)(e820ram - pxmram) >= 1*1024*1024) { printk(KERN_ERR diff --git a/include/asm-x86_64/e820.h b/include/asm-x86_64/e820.h index e15d3c8628f3..fa2086774105 100644 --- a/include/asm-x86_64/e820.h +++ b/include/asm-x86_64/e820.h @@ -47,10 +47,9 @@ extern void e820_print_map(char *who); extern int e820_any_mapped(unsigned long start, unsigned long end, unsigned type); extern int e820_all_mapped(unsigned long start, unsigned long end, unsigned type); -extern void e820_bootmem_free(pg_data_t *pgdat, unsigned long start,unsigned long end); extern void e820_setup_gap(void); -extern unsigned long e820_hole_size(unsigned long start_pfn, - unsigned long end_pfn); +extern void e820_register_active_regions(int nid, + unsigned long start_pfn, unsigned long end_pfn); extern void finish_e820_parsing(void); diff --git a/include/asm-x86_64/proto.h b/include/asm-x86_64/proto.h index b73d0c76613c..c28fc2db2171 100644 --- a/include/asm-x86_64/proto.h +++ b/include/asm-x86_64/proto.h @@ -24,8 +24,6 @@ extern void mtrr_bp_init(void); #define mtrr_bp_init() do {} while (0) #endif extern void init_memory_mapping(unsigned long start, unsigned long end); -extern void size_zones(unsigned long *z, unsigned long *h, - unsigned long start_pfn, unsigned long end_pfn); extern void system_call(void); extern int kernel_syscall(void); -- cgit v1.2.3 From 05e0caad3b7bd0d0fbeff980bca22f186241a501 Mon Sep 17 00:00:00 2001 From: Mel Gorman Date: Wed, 27 Sep 2006 01:49:54 -0700 Subject: [PATCH] Have ia64 use add_active_range() and free_area_init_nodes Size zones and holes in an architecture independent manner for ia64. [bob.picco@hp.com: fix ia64 FLATMEM+VIRTUAL_MEM_MAP] Signed-off-by: Mel Gorman Signed-off-by: Bob Picco Cc: Dave Hansen Cc: Andy Whitcroft Cc: Andi Kleen Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Cc: "Keith Mannthey" Cc: "Luck, Tony" Cc: KAMEZAWA Hiroyuki Cc: Yasunori Goto Signed-off-by: Bob Picco Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/ia64/Kconfig | 3 +++ arch/ia64/mm/contig.c | 67 +++++++++++----------------------------------- arch/ia64/mm/discontig.c | 44 +++++++----------------------- arch/ia64/mm/init.c | 12 +++++++++ include/asm-ia64/meminit.h | 1 + 5 files changed, 40 insertions(+), 87 deletions(-) (limited to 'include') diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig index f521f2f60a78..d5ee4fc8fe66 100644 --- a/arch/ia64/Kconfig +++ b/arch/ia64/Kconfig @@ -356,6 +356,9 @@ config NODES_SHIFT MAX_NUMNODES will be 2^(This value). If in doubt, use the default. +config ARCH_POPULATES_NODE_MAP + def_bool y + # VIRTUAL_MEM_MAP and FLAT_NODE_MEM_MAP are functionally equivalent. # VIRTUAL_MEM_MAP has been retained for historical reasons. config VIRTUAL_MEM_MAP diff --git a/arch/ia64/mm/contig.c b/arch/ia64/mm/contig.c index e004143ba86b..719d476e71ba 100644 --- a/arch/ia64/mm/contig.c +++ b/arch/ia64/mm/contig.c @@ -26,7 +26,6 @@ #include #ifdef CONFIG_VIRTUAL_MEM_MAP -static unsigned long num_dma_physpages; static unsigned long max_gap; #endif @@ -218,18 +217,6 @@ count_pages (u64 start, u64 end, void *arg) return 0; } -#ifdef CONFIG_VIRTUAL_MEM_MAP -static int -count_dma_pages (u64 start, u64 end, void *arg) -{ - unsigned long *count = arg; - - if (start < MAX_DMA_ADDRESS) - *count += (min(end, MAX_DMA_ADDRESS) - start) >> PAGE_SHIFT; - return 0; -} -#endif - /* * Set up the page tables. */ @@ -238,45 +225,22 @@ void __init paging_init (void) { unsigned long max_dma; - unsigned long zones_size[MAX_NR_ZONES]; -#ifdef CONFIG_VIRTUAL_MEM_MAP - unsigned long zholes_size[MAX_NR_ZONES]; -#endif - - /* initialize mem_map[] */ - - memset(zones_size, 0, sizeof(zones_size)); + unsigned long nid = 0; + unsigned long max_zone_pfns[MAX_NR_ZONES]; num_physpages = 0; efi_memmap_walk(count_pages, &num_physpages); max_dma = virt_to_phys((void *) MAX_DMA_ADDRESS) >> PAGE_SHIFT; + max_zone_pfns[ZONE_DMA] = max_dma; + max_zone_pfns[ZONE_NORMAL] = max_low_pfn; #ifdef CONFIG_VIRTUAL_MEM_MAP - memset(zholes_size, 0, sizeof(zholes_size)); - - num_dma_physpages = 0; - efi_memmap_walk(count_dma_pages, &num_dma_physpages); - - if (max_low_pfn < max_dma) { - zones_size[ZONE_DMA] = max_low_pfn; - zholes_size[ZONE_DMA] = max_low_pfn - num_dma_physpages; - } else { - zones_size[ZONE_DMA] = max_dma; - zholes_size[ZONE_DMA] = max_dma - num_dma_physpages; - if (num_physpages > num_dma_physpages) { - zones_size[ZONE_NORMAL] = max_low_pfn - max_dma; - zholes_size[ZONE_NORMAL] = - ((max_low_pfn - max_dma) - - (num_physpages - num_dma_physpages)); - } - } - + efi_memmap_walk(register_active_ranges, &nid); efi_memmap_walk(find_largest_hole, (u64 *)&max_gap); if (max_gap < LARGE_GAP) { vmem_map = (struct page *) 0; - free_area_init_node(0, NODE_DATA(0), zones_size, 0, - zholes_size); + free_area_init_nodes(max_zone_pfns); } else { unsigned long map_size; @@ -288,20 +252,19 @@ paging_init (void) vmem_map = (struct page *) vmalloc_end; efi_memmap_walk(create_mem_map_page_table, NULL); - NODE_DATA(0)->node_mem_map = vmem_map; - free_area_init_node(0, NODE_DATA(0), zones_size, - 0, zholes_size); + /* + * alloc_node_mem_map makes an adjustment for mem_map + * which isn't compatible with vmem_map. + */ + NODE_DATA(0)->node_mem_map = vmem_map + + find_min_pfn_with_active_regions(); + free_area_init_nodes(max_zone_pfns); printk("Virtual mem_map starts at 0x%p\n", mem_map); } #else /* !CONFIG_VIRTUAL_MEM_MAP */ - if (max_low_pfn < max_dma) - zones_size[ZONE_DMA] = max_low_pfn; - else { - zones_size[ZONE_DMA] = max_dma; - zones_size[ZONE_NORMAL] = max_low_pfn - max_dma; - } - free_area_init(zones_size); + add_active_range(0, 0, max_low_pfn); + free_area_init_nodes(max_zone_pfns); #endif /* !CONFIG_VIRTUAL_MEM_MAP */ zero_page_memmap_ptr = virt_to_page(ia64_imva(empty_zero_page)); } diff --git a/arch/ia64/mm/discontig.c b/arch/ia64/mm/discontig.c index d260bffa01ab..7bd28079dcc4 100644 --- a/arch/ia64/mm/discontig.c +++ b/arch/ia64/mm/discontig.c @@ -654,6 +654,7 @@ static __init int count_node_pages(unsigned long start, unsigned long len, int n { unsigned long end = start + len; + add_active_range(node, start >> PAGE_SHIFT, end >> PAGE_SHIFT); mem_data[node].num_physpages += len >> PAGE_SHIFT; if (start <= __pa(MAX_DMA_ADDRESS)) mem_data[node].num_dma_physpages += @@ -678,10 +679,10 @@ static __init int count_node_pages(unsigned long start, unsigned long len, int n void __init paging_init(void) { unsigned long max_dma; - unsigned long zones_size[MAX_NR_ZONES]; - unsigned long zholes_size[MAX_NR_ZONES]; unsigned long pfn_offset = 0; + unsigned long max_pfn = 0; int node; + unsigned long max_zone_pfns[MAX_NR_ZONES]; max_dma = virt_to_phys((void *) MAX_DMA_ADDRESS) >> PAGE_SHIFT; @@ -698,47 +699,20 @@ void __init paging_init(void) #endif for_each_online_node(node) { - memset(zones_size, 0, sizeof(zones_size)); - memset(zholes_size, 0, sizeof(zholes_size)); - num_physpages += mem_data[node].num_physpages; - - if (mem_data[node].min_pfn >= max_dma) { - /* All of this node's memory is above ZONE_DMA */ - zones_size[ZONE_NORMAL] = mem_data[node].max_pfn - - mem_data[node].min_pfn; - zholes_size[ZONE_NORMAL] = mem_data[node].max_pfn - - mem_data[node].min_pfn - - mem_data[node].num_physpages; - } else if (mem_data[node].max_pfn < max_dma) { - /* All of this node's memory is in ZONE_DMA */ - zones_size[ZONE_DMA] = mem_data[node].max_pfn - - mem_data[node].min_pfn; - zholes_size[ZONE_DMA] = mem_data[node].max_pfn - - mem_data[node].min_pfn - - mem_data[node].num_dma_physpages; - } else { - /* This node has memory in both zones */ - zones_size[ZONE_DMA] = max_dma - - mem_data[node].min_pfn; - zholes_size[ZONE_DMA] = zones_size[ZONE_DMA] - - mem_data[node].num_dma_physpages; - zones_size[ZONE_NORMAL] = mem_data[node].max_pfn - - max_dma; - zholes_size[ZONE_NORMAL] = zones_size[ZONE_NORMAL] - - (mem_data[node].num_physpages - - mem_data[node].num_dma_physpages); - } - pfn_offset = mem_data[node].min_pfn; #ifdef CONFIG_VIRTUAL_MEM_MAP NODE_DATA(node)->node_mem_map = vmem_map + pfn_offset; #endif - free_area_init_node(node, NODE_DATA(node), zones_size, - pfn_offset, zholes_size); + if (mem_data[node].max_pfn > max_pfn) + max_pfn = mem_data[node].max_pfn; } + max_zone_pfns[ZONE_DMA] = max_dma; + max_zone_pfns[ZONE_NORMAL] = max_pfn; + free_area_init_nodes(max_zone_pfns); + zero_page_memmap_ptr = virt_to_page(ia64_imva(empty_zero_page)); } diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c index 30617ccb4f7e..ff87a5cba399 100644 --- a/arch/ia64/mm/init.c +++ b/arch/ia64/mm/init.c @@ -593,6 +593,18 @@ find_largest_hole (u64 start, u64 end, void *arg) last_end = end; return 0; } + +int __init +register_active_ranges(u64 start, u64 end, void *nid) +{ + BUG_ON(nid == NULL); + BUG_ON(*(unsigned long *)nid >= MAX_NUMNODES); + + add_active_range(*(unsigned long *)nid, + __pa(start) >> PAGE_SHIFT, + __pa(end) >> PAGE_SHIFT); + return 0; +} #endif /* CONFIG_VIRTUAL_MEM_MAP */ static int __init diff --git a/include/asm-ia64/meminit.h b/include/asm-ia64/meminit.h index 6a33a07b3f1d..c3b1f862e6e7 100644 --- a/include/asm-ia64/meminit.h +++ b/include/asm-ia64/meminit.h @@ -55,6 +55,7 @@ extern void efi_memmap_init(unsigned long *, unsigned long *); extern unsigned long vmalloc_end; extern struct page *vmem_map; extern int find_largest_hole (u64 start, u64 end, void *arg); + extern int register_active_ranges (u64 start, u64 end, void *arg); extern int create_mem_map_page_table (u64 start, u64 end, void *arg); extern int vmemmap_find_next_valid_pfn(int, int); #else -- cgit v1.2.3 From 0e0b864e069c52a7b3e4a7da56e29b03a012fd75 Mon Sep 17 00:00:00 2001 From: Mel Gorman Date: Wed, 27 Sep 2006 01:49:56 -0700 Subject: [PATCH] Account for memmap and optionally the kernel image as holes The x86_64 code accounted for memmap and some portions of the the DMA zone as holes. This was because those areas would never be reclaimed and accounting for them as memory affects min watermarks. This patch will account for the memmap as a memory hole. Architectures may optionally use set_dma_reserve() if they wish to account for a portion of memory in ZONE_DMA as a hole. Signed-off-by: Mel Gorman Cc: Dave Hansen Cc: Andy Whitcroft Cc: Andi Kleen Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Cc: "Keith Mannthey" Cc: "Luck, Tony" Cc: KAMEZAWA Hiroyuki Cc: Yasunori Goto Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/x86_64/mm/init.c | 4 +++- include/linux/mm.h | 1 + mm/page_alloc.c | 60 ++++++++++++++++++++++++++++++++++++++++++++++++++- 3 files changed, 63 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/arch/x86_64/mm/init.c b/arch/x86_64/mm/init.c index 47928399e38a..3e16fe08150e 100644 --- a/arch/x86_64/mm/init.c +++ b/arch/x86_64/mm/init.c @@ -655,8 +655,10 @@ void __init reserve_bootmem_generic(unsigned long phys, unsigned len) #else reserve_bootmem(phys, len); #endif - if (phys+len <= MAX_DMA_PFN*PAGE_SIZE) + if (phys+len <= MAX_DMA_PFN*PAGE_SIZE) { dma_reserve += len / PAGE_SIZE; + set_dma_reserve(dma_reserve); + } } int kern_addr_valid(unsigned long addr) diff --git a/include/linux/mm.h b/include/linux/mm.h index c0402da7cce0..22936e1fcdf2 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -984,6 +984,7 @@ extern void sparse_memory_present_with_active_regions(int nid); extern int early_pfn_to_nid(unsigned long pfn); #endif /* CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID */ #endif /* CONFIG_ARCH_POPULATES_NODE_MAP */ +extern void set_dma_reserve(unsigned long new_dma_reserve); extern void memmap_init_zone(unsigned long, int, unsigned long, unsigned long); extern void setup_per_zone_pages_min(void); extern void mem_init(void); diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 26c9939857fa..8d9a1eb9fbba 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -104,6 +104,7 @@ int min_free_kbytes = 1024; unsigned long __meminitdata nr_kernel_pages; unsigned long __meminitdata nr_all_pages; +static unsigned long __initdata dma_reserve; #ifdef CONFIG_ARCH_POPULATES_NODE_MAP /* @@ -2213,6 +2214,20 @@ unsigned long __init zone_absent_pages_in_node(int nid, arch_zone_lowest_possible_pfn[zone_type], arch_zone_highest_possible_pfn[zone_type]); } + +/* Return the zone index a PFN is in */ +int memmap_zone_idx(struct page *lmem_map) +{ + int i; + unsigned long phys_addr = virt_to_phys(lmem_map); + unsigned long pfn = phys_addr >> PAGE_SHIFT; + + for (i = 0; i < MAX_NR_ZONES; i++) + if (pfn < arch_zone_highest_possible_pfn[i]) + break; + + return i; +} #else static inline unsigned long zone_spanned_pages_in_node(int nid, unsigned long zone_type, @@ -2230,6 +2245,11 @@ static inline unsigned long zone_absent_pages_in_node(int nid, return zholes_size[zone_type]; } + +static inline int memmap_zone_idx(struct page *lmem_map) +{ + return MAX_NR_ZONES; +} #endif static void __init calculate_node_totalpages(struct pglist_data *pgdat, @@ -2274,12 +2294,35 @@ static void __meminit free_area_init_core(struct pglist_data *pgdat, for (j = 0; j < MAX_NR_ZONES; j++) { struct zone *zone = pgdat->node_zones + j; - unsigned long size, realsize; + unsigned long size, realsize, memmap_pages; size = zone_spanned_pages_in_node(nid, j, zones_size); realsize = size - zone_absent_pages_in_node(nid, j, zholes_size); + /* + * Adjust realsize so that it accounts for how much memory + * is used by this zone for memmap. This affects the watermark + * and per-cpu initialisations + */ + memmap_pages = (size * sizeof(struct page)) >> PAGE_SHIFT; + if (realsize >= memmap_pages) { + realsize -= memmap_pages; + printk(KERN_DEBUG + " %s zone: %lu pages used for memmap\n", + zone_names[j], memmap_pages); + } else + printk(KERN_WARNING + " %s zone: %lu pages exceeds realsize %lu\n", + zone_names[j], memmap_pages, realsize); + + /* Account for reserved DMA pages */ + if (j == ZONE_DMA && realsize > dma_reserve) { + realsize -= dma_reserve; + printk(KERN_DEBUG " DMA zone: %lu pages reserved\n", + dma_reserve); + } + if (!is_highmem_idx(j)) nr_kernel_pages += realsize; nr_all_pages += realsize; @@ -2596,6 +2639,21 @@ void __init free_area_init_nodes(unsigned long *max_zone_pfn) } #endif /* CONFIG_ARCH_POPULATES_NODE_MAP */ +/** + * set_dma_reserve - Account the specified number of pages reserved in ZONE_DMA + * @new_dma_reserve - The number of pages to mark reserved + * + * The per-cpu batchsize and zone watermarks are determined by present_pages. + * In the DMA zone, a significant percentage may be consumed by kernel image + * and other unfreeable allocations which can skew the watermarks badly. This + * function may optionally be used to account for unfreeable pages in + * ZONE_DMA. The effect will be lower watermarks and smaller per-cpu batchsize + */ +void __init set_dma_reserve(unsigned long new_dma_reserve) +{ + dma_reserve = 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 }; -- cgit v1.2.3 From fb01439c5b778d5974a488c5d4fe85e6d0e18a68 Mon Sep 17 00:00:00 2001 From: Mel Gorman Date: Wed, 27 Sep 2006 01:49:59 -0700 Subject: [PATCH] Allow an arch to expand node boundaries Arch-independent zone-sizing determines the size of a node (pgdat->node_spanned_pages) based on the physical memory that was registered by the architecture. However, when CONFIG_MEMORY_HOTPLUG_RESERVE is set, the architecture expects that the spanned_pages will be much larger and that mem_map will be allocated that is used lated on memory hot-add. This patch allows an architecture that sets CONFIG_MEMORY_HOTPLUG_RESERVE to call push_node_boundaries() which will set the node beginning and end to at *least* the requested boundary. Cc: Dave Hansen Cc: Andy Whitcroft Cc: Andi Kleen Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Cc: "Keith Mannthey" Cc: "Luck, Tony" Cc: KAMEZAWA Hiroyuki Cc: Yasunori Goto Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/x86_64/mm/srat.c | 2 ++ include/linux/mm.h | 2 ++ mm/page_alloc.c | 67 +++++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 71 insertions(+) (limited to 'include') diff --git a/arch/x86_64/mm/srat.c b/arch/x86_64/mm/srat.c index db1b2e11cf8f..f8c04d6935c9 100644 --- a/arch/x86_64/mm/srat.c +++ b/arch/x86_64/mm/srat.c @@ -324,6 +324,8 @@ acpi_numa_memory_affinity_init(struct acpi_table_memory_affinity *ma) nd->start, nd->end); e820_register_active_regions(node, nd->start >> PAGE_SHIFT, nd->end >> PAGE_SHIFT); + push_node_boundaries(node, nd->start >> PAGE_SHIFT, + nd->end >> PAGE_SHIFT); #ifdef RESERVE_HOTADD if (ma->flags.hot_pluggable && reserve_hotadd(node, start, end) < 0) { diff --git a/include/linux/mm.h b/include/linux/mm.h index 22936e1fcdf2..9d046db31e76 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -970,6 +970,8 @@ extern void add_active_range(unsigned int nid, unsigned long start_pfn, unsigned long end_pfn); extern void shrink_active_range(unsigned int nid, unsigned long old_end_pfn, unsigned long new_end_pfn); +extern void push_node_boundaries(unsigned int nid, unsigned long start_pfn, + unsigned long end_pfn); extern void remove_all_active_ranges(void); extern unsigned long absent_pages_in_range(unsigned long start_pfn, unsigned long end_pfn); diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 75133e1dc4b1..acbf58f8a1b7 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -131,6 +131,10 @@ static unsigned long __initdata dma_reserve; int __initdata nr_nodemap_entries; unsigned long __initdata arch_zone_lowest_possible_pfn[MAX_NR_ZONES]; unsigned long __initdata arch_zone_highest_possible_pfn[MAX_NR_ZONES]; +#ifdef CONFIG_MEMORY_HOTPLUG_RESERVE + unsigned long __initdata node_boundary_start_pfn[MAX_NUMNODES]; + unsigned long __initdata node_boundary_end_pfn[MAX_NUMNODES]; +#endif /* CONFIG_MEMORY_HOTPLUG_RESERVE */ #endif /* CONFIG_ARCH_POPULATES_NODE_MAP */ #ifdef CONFIG_DEBUG_VM @@ -2094,6 +2098,62 @@ void __init sparse_memory_present_with_active_regions(int nid) early_node_map[i].end_pfn); } +/** + * push_node_boundaries - Push node boundaries to at least the requested boundary + * @nid: The nid of the node to push the boundary for + * @start_pfn: The start pfn of the node + * @end_pfn: The end pfn of the node + * + * In reserve-based hot-add, mem_map is allocated that is unused until hotadd + * time. Specifically, on x86_64, SRAT will report ranges that can potentially + * be hotplugged even though no physical memory exists. This function allows + * an arch to push out the node boundaries so mem_map is allocated that can + * be used later. + */ +#ifdef CONFIG_MEMORY_HOTPLUG_RESERVE +void __init push_node_boundaries(unsigned int nid, + unsigned long start_pfn, unsigned long end_pfn) +{ + printk(KERN_DEBUG "Entering push_node_boundaries(%u, %lu, %lu)\n", + nid, start_pfn, end_pfn); + + /* Initialise the boundary for this node if necessary */ + if (node_boundary_end_pfn[nid] == 0) + node_boundary_start_pfn[nid] = -1UL; + + /* Update the boundaries */ + if (node_boundary_start_pfn[nid] > start_pfn) + node_boundary_start_pfn[nid] = start_pfn; + if (node_boundary_end_pfn[nid] < end_pfn) + node_boundary_end_pfn[nid] = end_pfn; +} + +/* If necessary, push the node boundary out for reserve hotadd */ +static void __init account_node_boundary(unsigned int nid, + unsigned long *start_pfn, unsigned long *end_pfn) +{ + printk(KERN_DEBUG "Entering account_node_boundary(%u, %lu, %lu)\n", + nid, *start_pfn, *end_pfn); + + /* Return if boundary information has not been provided */ + if (node_boundary_end_pfn[nid] == 0) + return; + + /* Check the boundaries and update if necessary */ + if (node_boundary_start_pfn[nid] < *start_pfn) + *start_pfn = node_boundary_start_pfn[nid]; + if (node_boundary_end_pfn[nid] > *end_pfn) + *end_pfn = node_boundary_end_pfn[nid]; +} +#else +void __init push_node_boundaries(unsigned int nid, + unsigned long start_pfn, unsigned long end_pfn) {} + +static void __init account_node_boundary(unsigned int nid, + unsigned long *start_pfn, unsigned long *end_pfn) {} +#endif + + /** * get_pfn_range_for_nid - Return the start and end page frames for a node * @nid: The nid to return the range for. If MAX_NUMNODES, the min and max PFN are returned @@ -2121,6 +2181,9 @@ void __init get_pfn_range_for_nid(unsigned int nid, printk(KERN_WARNING "Node %u active with no memory\n", nid); *start_pfn = 0; } + + /* Push the node boundaries out if requested */ + account_node_boundary(nid, start_pfn, end_pfn); } /* @@ -2527,6 +2590,10 @@ void __init remove_all_active_ranges() { memset(early_node_map, 0, sizeof(early_node_map)); nr_nodemap_entries = 0; +#ifdef CONFIG_MEMORY_HOTPLUG_RESERVE + memset(node_boundary_start_pfn, 0, sizeof(node_boundary_start_pfn)); + memset(node_boundary_end_pfn, 0, sizeof(node_boundary_end_pfn)); +#endif /* CONFIG_MEMORY_HOTPLUG_RESERVE */ } /* Compare two active node_active_regions */ -- cgit v1.2.3 From e129b5c23c2b471d47f1c5d2b8b193fc2034af43 Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Wed, 27 Sep 2006 01:50:00 -0700 Subject: [PATCH] vm: add per-zone writeout counter The VM is supposed to minimise the number of pages which get written off the LRU (for IO scheduling efficiency, and for high reclaim-success rates). But we don't actually have a clear way of showing how true this is. So add `nr_vmscan_write' to /proc/vmstat and /proc/zoneinfo - the number of pages which have been written by the vm scanner in this zone and globally. Cc: Christoph Lameter Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/mmzone.h | 1 + mm/vmscan.c | 3 ++- mm/vmstat.c | 1 + 3 files changed, 4 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index 7fa1cbe9fa7a..1b0680cd84d2 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -58,6 +58,7 @@ enum zone_stat_item { NR_WRITEBACK, NR_UNSTABLE_NFS, /* NFS unstable pages */ NR_BOUNCE, + NR_VMSCAN_WRITE, #ifdef CONFIG_NUMA NUMA_HIT, /* allocated in intended node */ NUMA_MISS, /* allocated in non intended node */ diff --git a/mm/vmscan.c b/mm/vmscan.c index 87779dda4ec6..87d340999ce8 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -19,6 +19,7 @@ #include #include #include +#include #include #include #include @@ -370,7 +371,7 @@ static pageout_t pageout(struct page *page, struct address_space *mapping) /* synchronous write or broken a_ops? */ ClearPageReclaim(page); } - + inc_zone_page_state(page, NR_VMSCAN_WRITE); return PAGE_SUCCESS; } diff --git a/mm/vmstat.c b/mm/vmstat.c index 490d8c1a0ded..69c657132e1f 100644 --- a/mm/vmstat.c +++ b/mm/vmstat.c @@ -465,6 +465,7 @@ static char *vmstat_text[] = { "nr_writeback", "nr_unstable", "nr_bounce", + "nr_vmscan_write", #ifdef CONFIG_NUMA "numa_hit", -- cgit v1.2.3 From 5b99cd0effaf846240a15441aec459a592577eaf Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Wed, 27 Sep 2006 01:50:01 -0700 Subject: [PATCH] own header file for struct page This moves the definition of struct page from mm.h to its own header file page-struct.h. This is a prereq to fix SetPageUptodate which is broken on s390: #define SetPageUptodate(_page) do { struct page *__page = (_page); if (!test_and_set_bit(PG_uptodate, &__page->flags)) page_test_and_clear_dirty(_page); } while (0) _page gets used twice in this macro which can cause subtle bugs. Using __page for the page_test_and_clear_dirty call doesn't work since it causes yet another problem with the page_test_and_clear_dirty macro as well. In order to avoid all these problems caused by macros it seems to be a good idea to get rid of them and convert them to static inline functions. Because of header file include order it's necessary to have a seperate header file for the struct page definition. Cc: Martin Schwidefsky Signed-off-by: Heiko Carstens Cc: Roman Zippel Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/mm.h | 62 +------------------------------------------- include/linux/mm_types.h | 67 ++++++++++++++++++++++++++++++++++++++++++++++++ include/linux/mmzone.h | 5 ++++ 3 files changed, 73 insertions(+), 61 deletions(-) create mode 100644 include/linux/mm_types.h (limited to 'include') diff --git a/include/linux/mm.h b/include/linux/mm.h index 9d046db31e76..7477fb59c4f2 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -16,6 +16,7 @@ #include #include #include +#include struct mempolicy; struct anon_vma; @@ -215,62 +216,6 @@ struct vm_operations_struct { struct mmu_gather; struct inode; -/* - * Each physical page in the system has a struct page associated with - * it to keep track of whatever it is we are using the page for at the - * moment. Note that we have no way to track which tasks are using - * a page, though if it is a pagecache page, rmap structures can tell us - * who is mapping it. - */ -struct page { - unsigned long flags; /* Atomic flags, some possibly - * updated asynchronously */ - atomic_t _count; /* Usage count, see below. */ - atomic_t _mapcount; /* Count of ptes mapped in mms, - * to show when page is mapped - * & limit reverse map searches. - */ - union { - struct { - unsigned long private; /* Mapping-private opaque data: - * usually used for buffer_heads - * if PagePrivate set; used for - * swp_entry_t if PageSwapCache; - * indicates order in the buddy - * system if PG_buddy is set. - */ - struct address_space *mapping; /* If low bit clear, points to - * inode address_space, or NULL. - * If page mapped as anonymous - * memory, low bit is set, and - * it points to anon_vma object: - * see PAGE_MAPPING_ANON below. - */ - }; -#if NR_CPUS >= CONFIG_SPLIT_PTLOCK_CPUS - spinlock_t ptl; -#endif - }; - pgoff_t index; /* Our offset within mapping. */ - struct list_head lru; /* Pageout list, eg. active_list - * protected by zone->lru_lock ! - */ - /* - * On machines where all RAM is mapped into kernel address space, - * we can simply calculate the virtual address. On machines with - * highmem some memory is mapped into kernel virtual memory - * dynamically, so we need a place to store that address. - * Note that this field could be 16 bits on x86 ... ;) - * - * Architectures with slow multiplication can define - * WANT_PAGE_VIRTUAL in asm/page.h - */ -#if defined(WANT_PAGE_VIRTUAL) - void *virtual; /* Kernel virtual address (NULL if - not kmapped, ie. highmem) */ -#endif /* WANT_PAGE_VIRTUAL */ -}; - #define page_private(page) ((page)->private) #define set_page_private(page, v) ((page)->private = (v)) @@ -546,11 +491,6 @@ static inline void set_page_links(struct page *page, enum zone_type zone, */ #include -#ifndef CONFIG_DISCONTIGMEM -/* The array of struct pages - for discontigmem use pgdat->lmem_map */ -extern struct page *mem_map; -#endif - static __always_inline void *lowmem_page_address(struct page *page) { return __va(page_to_pfn(page) << PAGE_SHIFT); diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h new file mode 100644 index 000000000000..c3852fd4a1cc --- /dev/null +++ b/include/linux/mm_types.h @@ -0,0 +1,67 @@ +#ifndef _LINUX_MM_TYPES_H +#define _LINUX_MM_TYPES_H + +#include +#include +#include +#include + +struct address_space; + +/* + * Each physical page in the system has a struct page associated with + * it to keep track of whatever it is we are using the page for at the + * moment. Note that we have no way to track which tasks are using + * a page, though if it is a pagecache page, rmap structures can tell us + * who is mapping it. + */ +struct page { + unsigned long flags; /* Atomic flags, some possibly + * updated asynchronously */ + atomic_t _count; /* Usage count, see below. */ + atomic_t _mapcount; /* Count of ptes mapped in mms, + * to show when page is mapped + * & limit reverse map searches. + */ + union { + struct { + unsigned long private; /* Mapping-private opaque data: + * usually used for buffer_heads + * if PagePrivate set; used for + * swp_entry_t if PageSwapCache; + * indicates order in the buddy + * system if PG_buddy is set. + */ + struct address_space *mapping; /* If low bit clear, points to + * inode address_space, or NULL. + * If page mapped as anonymous + * memory, low bit is set, and + * it points to anon_vma object: + * see PAGE_MAPPING_ANON below. + */ + }; +#if NR_CPUS >= CONFIG_SPLIT_PTLOCK_CPUS + spinlock_t ptl; +#endif + }; + pgoff_t index; /* Our offset within mapping. */ + struct list_head lru; /* Pageout list, eg. active_list + * protected by zone->lru_lock ! + */ + /* + * On machines where all RAM is mapped into kernel address space, + * we can simply calculate the virtual address. On machines with + * highmem some memory is mapped into kernel virtual memory + * dynamically, so we need a place to store that address. + * Note that this field could be 16 bits on x86 ... ;) + * + * Architectures with slow multiplication can define + * WANT_PAGE_VIRTUAL in asm/page.h + */ +#if defined(WANT_PAGE_VIRTUAL) + void *virtual; /* Kernel virtual address (NULL if + not kmapped, ie. highmem) */ +#endif /* WANT_PAGE_VIRTUAL */ +}; + +#endif /* _LINUX_MM_TYPES_H */ diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index 1b0680cd84d2..562cf7a8f3ee 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -314,6 +314,11 @@ struct node_active_region { }; #endif /* CONFIG_ARCH_POPULATES_NODE_MAP */ +#ifndef CONFIG_DISCONTIGMEM +/* The array of struct pages - for discontigmem use pgdat->lmem_map */ +extern struct page *mem_map; +#endif + /* * The pg_data_t structure is used in machines with CONFIG_DISCONTIGMEM * (mostly NUMA machines?) to denote a higher-level memory zone than the -- cgit v1.2.3 From 08e0f6a9705376732fd3bc9bf8ba97a6b5211eb1 Mon Sep 17 00:00:00 2001 From: Christoph Lameter Date: Wed, 27 Sep 2006 01:50:06 -0700 Subject: [PATCH] Add NUMA_BUILD definition in kernel.h to avoid #ifdef CONFIG_NUMA The NUMA_BUILD constant is always available and will be set to 1 on NUMA_BUILDs. That way checks valid only under CONFIG_NUMA can easily be done without #ifdef CONFIG_NUMA F.e. if (NUMA_BUILD && ) { ... } [akpm: not a thing we'd normally do, but CONFIG_NUMA is special: it is causing ifdef explosion in core kernel, so let's see if this is a comfortable way in whcih to control that] Signed-off-by: Christoph Lameter Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/kernel.h | 7 +++++++ mm/page_alloc.c | 12 +++++------- 2 files changed, 12 insertions(+), 7 deletions(-) (limited to 'include') diff --git a/include/linux/kernel.h b/include/linux/kernel.h index 4fa373bb18ac..4d00988dad03 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h @@ -350,4 +350,11 @@ struct sysinfo { /* Trap pasters of __FUNCTION__ at compile-time */ #define __FUNCTION__ (__func__) +/* This helps us to avoid #ifdef CONFIG_NUMA */ +#ifdef CONFIG_NUMA +#define NUMA_BUILD 1 +#else +#define NUMA_BUILD 0 +#endif + #endif diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 8a6418b0d2c5..4c76188b1681 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -942,7 +942,7 @@ get_page_from_freelist(gfp_t gfp_mask, unsigned int order, */ do { zone = *z; - if (unlikely((gfp_mask & __GFP_THISNODE) && + if (unlikely(NUMA_BUILD && (gfp_mask & __GFP_THISNODE) && zone->zone_pgdat != zonelist->zones[0]->zone_pgdat)) break; if ((alloc_flags & ALLOC_CPUSET) && @@ -1256,14 +1256,12 @@ unsigned int nr_free_pagecache_pages(void) { return nr_free_zone_pages(gfp_zone(GFP_HIGHUSER)); } -#ifdef CONFIG_NUMA -static void show_node(struct zone *zone) + +static inline void show_node(struct zone *zone) { - printk("Node %ld ", zone_to_nid(zone)); + if (NUMA_BUILD) + printk("Node %ld ", zone_to_nid(zone)); } -#else -#define show_node(zone) do { } while (0) -#endif void si_meminfo(struct sysinfo *val) { -- cgit v1.2.3 From 77f700dab4c05f8ee17584ec869672796d7bcb87 Mon Sep 17 00:00:00 2001 From: Christoph Lameter Date: Wed, 27 Sep 2006 01:50:07 -0700 Subject: [PATCH] Disable GFP_THISNODE in the non-NUMA case GFP_THISNODE must be set to 0 in the non numa case otherwise we disable retry and warnings for failing allocations in the SMP and UP case. Signed-off-by: Christoph Lameter Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/gfp.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'include') diff --git a/include/linux/gfp.h b/include/linux/gfp.h index 8b34aabfe4c6..bf2b6bc3f6fd 100644 --- a/include/linux/gfp.h +++ b/include/linux/gfp.h @@ -67,7 +67,12 @@ struct vm_area_struct; #define GFP_HIGHUSER (__GFP_WAIT | __GFP_IO | __GFP_FS | __GFP_HARDWALL | \ __GFP_HIGHMEM) +#ifdef CONFIG_NUMA #define GFP_THISNODE (__GFP_THISNODE | __GFP_NOWARN | __GFP_NORETRY) +#else +#define GFP_THISNODE 0 +#endif + /* Flag - indicates that the buffer will be suitable for DMA. Ignored on some platforms, used as appropriate on others */ -- cgit v1.2.3 From d5f541ed6e31518508c688912e7464facf253c87 Mon Sep 17 00:00:00 2001 From: Christoph Lameter Date: Wed, 27 Sep 2006 01:50:08 -0700 Subject: [PATCH] Add node to zone for the NUMA case Add the node in order to optimize zone_to_nid. Signed-off-by: Christoph Lameter Acked-by: Paul Jackson Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/mm.h | 6 +++++- include/linux/mmzone.h | 1 + mm/page_alloc.c | 1 + 3 files changed, 7 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/mm.h b/include/linux/mm.h index 7477fb59c4f2..8e433bbc6e7e 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -446,7 +446,11 @@ static inline struct zone *page_zone(struct page *page) static inline unsigned long zone_to_nid(struct zone *zone) { - return zone->zone_pgdat->node_id; +#ifdef CONFIG_NUMA + return zone->node; +#else + return 0; +#endif } static inline unsigned long page_to_nid(struct page *page) diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index 562cf7a8f3ee..59855b8718a0 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -168,6 +168,7 @@ struct zone { unsigned long lowmem_reserve[MAX_NR_ZONES]; #ifdef CONFIG_NUMA + int node; /* * zone reclaim becomes active if more unmapped pages exist. */ diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 4c76188b1681..d0432e44f77d 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -2405,6 +2405,7 @@ static void __meminit free_area_init_core(struct pglist_data *pgdat, zone->spanned_pages = size; zone->present_pages = realsize; #ifdef CONFIG_NUMA + zone->node = nid; zone->min_unmapped_pages = (realsize*sysctl_min_unmapped_ratio) / 100; zone->min_slab_pages = (realsize * sysctl_min_slab_ratio) / 100; -- cgit v1.2.3 From f4b81804a2d1ab341a4613089dc31ecce0800ed8 Mon Sep 17 00:00:00 2001 From: Jes Sorensen Date: Wed, 27 Sep 2006 01:50:10 -0700 Subject: [PATCH] do_no_pfn() Implement do_no_pfn() for handling mapping of memory without a struct page backing it. This avoids creating fake page table entries for regions which are not backed by real memory. This feature is used by the MSPEC driver and other users, where it is highly undesirable to have a struct page sitting behind the page (for instance if the page is accessed in cached mode via the struct page in parallel to the the driver accessing it uncached, which can result in data corruption on some architectures, such as ia64). This version uses specific NOPFN_{SIGBUS,OOM} return values, rather than expect all negative pfn values would be an error. It also bugs on cow mappings as this would not work with the VM. [akpm@osdl.org: micro-optimise] Signed-off-by: Jes Sorensen Cc: Hugh Dickins Cc: Nick Piggin Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/mm.h | 7 ++++++ mm/memory.c | 64 +++++++++++++++++++++++++++++++++++++++++++++++++----- 2 files changed, 66 insertions(+), 5 deletions(-) (limited to 'include') diff --git a/include/linux/mm.h b/include/linux/mm.h index 8e433bbc6e7e..22165cb18906 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -199,6 +199,7 @@ struct vm_operations_struct { void (*open)(struct vm_area_struct * area); void (*close)(struct vm_area_struct * area); struct page * (*nopage)(struct vm_area_struct * area, unsigned long address, int *type); + unsigned long (*nopfn)(struct vm_area_struct * area, unsigned long address); int (*populate)(struct vm_area_struct * area, unsigned long address, unsigned long len, pgprot_t prot, unsigned long pgoff, int nonblock); /* notification that a previously read-only page is about to become @@ -593,6 +594,12 @@ static inline int page_mapped(struct page *page) #define NOPAGE_SIGBUS (NULL) #define NOPAGE_OOM ((struct page *) (-1)) +/* + * Error return values for the *_nopfn functions + */ +#define NOPFN_SIGBUS ((unsigned long) -1) +#define NOPFN_OOM ((unsigned long) -2) + /* * 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 92a3ebd8d795..f2ef1dcfff77 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -2255,6 +2255,54 @@ oom: return VM_FAULT_OOM; } +/* + * 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; + int ret = VM_FAULT_MINOR; + + pte_unmap(page_table); + BUG_ON(!(vma->vm_flags & VM_PFNMAP)); + BUG_ON(is_cow_mapping(vma->vm_flags)); + + pfn = vma->vm_ops->nopfn(vma, address & PAGE_MASK); + if (pfn == NOPFN_OOM) + return VM_FAULT_OOM; + if (pfn == NOPFN_SIGBUS) + return VM_FAULT_SIGBUS; + + 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 ret; +} + /* * Fault of a previously existing named mapping. Repopulate the pte * from the encoded file_pte if possible. This enables swappable @@ -2317,11 +2365,17 @@ static inline int handle_pte_fault(struct mm_struct *mm, old_entry = entry = *pte; if (!pte_present(entry)) { if (pte_none(entry)) { - if (!vma->vm_ops || !vma->vm_ops->nopage) - return do_anonymous_page(mm, vma, address, - pte, pmd, write_access); - return do_no_page(mm, vma, address, - pte, pmd, write_access); + if (vma->vm_ops) { + if (vma->vm_ops->nopage) + return do_no_page(mm, vma, address, + pte, pmd, + write_access); + 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); } if (pte_file(entry)) return do_file_page(mm, vma, address, -- cgit v1.2.3 From d24afc57d51b1be41f95521e81399061fa5875a6 Mon Sep 17 00:00:00 2001 From: Rolf Eike Beer Date: Wed, 27 Sep 2006 01:50:13 -0700 Subject: [PATCH] Mark __remove_vm_area() static The function is exported but not used from anywhere else. It's also marked as "not for driver use" so noone out there should really care. Signed-off-by: Rolf Eike Beer Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/vmalloc.h | 1 - mm/vmalloc.c | 2 +- 2 files changed, 1 insertion(+), 2 deletions(-) (limited to 'include') diff --git a/include/linux/vmalloc.h b/include/linux/vmalloc.h index dee88c6b6fa7..ce5f1482e6be 100644 --- a/include/linux/vmalloc.h +++ b/include/linux/vmalloc.h @@ -62,7 +62,6 @@ extern struct vm_struct *__get_vm_area(unsigned long size, unsigned long flags, extern struct vm_struct *get_vm_area_node(unsigned long size, unsigned long flags, int node); extern struct vm_struct *remove_vm_area(void *addr); -extern struct vm_struct *__remove_vm_area(void *addr); extern int map_vm_area(struct vm_struct *area, pgprot_t prot, struct page ***pages); extern void unmap_vm_area(struct vm_struct *area); diff --git a/mm/vmalloc.c b/mm/vmalloc.c index 659ec634856a..1ac191ce5641 100644 --- a/mm/vmalloc.c +++ b/mm/vmalloc.c @@ -272,7 +272,7 @@ static struct vm_struct *__find_vm_area(void *addr) } /* Caller must hold vmlist_lock */ -struct vm_struct *__remove_vm_area(void *addr) +static struct vm_struct *__remove_vm_area(void *addr) { struct vm_struct **p, *tmp; -- cgit v1.2.3 From 5da6185bca064e35aa73a7c1f27488d2b96434f4 Mon Sep 17 00:00:00 2001 From: David Howells Date: Wed, 27 Sep 2006 01:50:16 -0700 Subject: [PATCH] NOMMU: Set BDI capabilities for /dev/mem and /dev/kmem Set the backing device info capabilities for /dev/mem and /dev/kmem to permit direct sharing under no-MMU conditions and full mapping capabilities under MMU conditions. Make the BDI used by these available to all directly mappable character devices. Also comment the capabilities for /dev/zero. [akpm@osdl.org: ifdef reductions] Signed-off-by: David Howells Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/char/mem.c | 39 +++++++++++++++++++++++++++++++++++++++ fs/char_dev.c | 20 ++++++++++++++++++++ include/linux/cdev.h | 2 ++ 3 files changed, 61 insertions(+) (limited to 'include') diff --git a/drivers/char/mem.c b/drivers/char/mem.c index 917b20402664..4ac70ec697f0 100644 --- a/drivers/char/mem.c +++ b/drivers/char/mem.c @@ -238,6 +238,32 @@ static pgprot_t phys_mem_access_prot(struct file *file, unsigned long pfn, } #endif +#ifndef CONFIG_MMU +static unsigned long get_unmapped_area_mem(struct file *file, + unsigned long addr, + unsigned long len, + unsigned long pgoff, + unsigned long flags) +{ + if (!valid_mmap_phys_addr_range(pgoff, len)) + return (unsigned long) -EINVAL; + return pgoff; +} + +/* can't do an in-place private mapping if there's no MMU */ +static inline int private_mapping_ok(struct vm_area_struct *vma) +{ + return vma->vm_flags & VM_MAYSHARE; +} +#else +#define get_unmapped_area_mem NULL + +static inline int private_mapping_ok(struct vm_area_struct *vma) +{ + return 1; +} +#endif + static int mmap_mem(struct file * file, struct vm_area_struct * vma) { size_t size = vma->vm_end - vma->vm_start; @@ -245,6 +271,9 @@ static int mmap_mem(struct file * file, struct vm_area_struct * vma) if (!valid_mmap_phys_addr_range(vma->vm_pgoff, size)) return -EINVAL; + if (!private_mapping_ok(vma)) + return -ENOSYS; + vma->vm_page_prot = phys_mem_access_prot(file, vma->vm_pgoff, size, vma->vm_page_prot); @@ -782,6 +811,7 @@ static const struct file_operations mem_fops = { .write = write_mem, .mmap = mmap_mem, .open = open_mem, + .get_unmapped_area = get_unmapped_area_mem, }; static const struct file_operations kmem_fops = { @@ -790,6 +820,7 @@ static const struct file_operations kmem_fops = { .write = write_kmem, .mmap = mmap_kmem, .open = open_kmem, + .get_unmapped_area = get_unmapped_area_mem, }; static const struct file_operations null_fops = { @@ -815,6 +846,10 @@ static const struct file_operations zero_fops = { .mmap = mmap_zero, }; +/* + * capabilities for /dev/zero + * - permits private mappings, "copies" are taken of the source of zeros + */ static struct backing_dev_info zero_bdi = { .capabilities = BDI_CAP_MAP_COPY, }; @@ -862,9 +897,13 @@ static int memory_open(struct inode * inode, struct file * filp) switch (iminor(inode)) { case 1: filp->f_op = &mem_fops; + filp->f_mapping->backing_dev_info = + &directly_mappable_cdev_bdi; break; case 2: filp->f_op = &kmem_fops; + filp->f_mapping->backing_dev_info = + &directly_mappable_cdev_bdi; break; case 3: filp->f_op = &null_fops; diff --git a/fs/char_dev.c b/fs/char_dev.c index 3483d3cf8087..0009346d827f 100644 --- a/fs/char_dev.c +++ b/fs/char_dev.c @@ -19,11 +19,30 @@ #include #include #include +#include #ifdef CONFIG_KMOD #include #endif +/* + * capabilities for /dev/mem, /dev/kmem and similar directly mappable character + * devices + * - permits shared-mmap for read, write and/or exec + * - does not permit private mmap in NOMMU mode (can't do COW) + * - no readahead or I/O queue unplugging required + */ +struct backing_dev_info directly_mappable_cdev_bdi = { + .capabilities = ( +#ifdef CONFIG_MMU + /* permit private copies of the data to be taken */ + BDI_CAP_MAP_COPY | +#endif + /* permit direct mmap, for read, write or exec */ + BDI_CAP_MAP_DIRECT | + BDI_CAP_READ_MAP | BDI_CAP_WRITE_MAP | BDI_CAP_EXEC_MAP), +}; + static struct kobj_map *cdev_map; static DEFINE_MUTEX(chrdevs_lock); @@ -461,3 +480,4 @@ EXPORT_SYMBOL(cdev_del); EXPORT_SYMBOL(cdev_add); EXPORT_SYMBOL(register_chrdev); EXPORT_SYMBOL(unregister_chrdev); +EXPORT_SYMBOL(directly_mappable_cdev_bdi); diff --git a/include/linux/cdev.h b/include/linux/cdev.h index 2216638962d2..ee5f53f2ca15 100644 --- a/include/linux/cdev.h +++ b/include/linux/cdev.h @@ -23,5 +23,7 @@ void cdev_del(struct cdev *); void cd_forget(struct inode *); +extern struct backing_dev_info directly_mappable_cdev_bdi; + #endif #endif -- cgit v1.2.3 From dbf8685c8e21404e3a8ed244bd0219d3c4b89101 Mon Sep 17 00:00:00 2001 From: David Howells Date: Wed, 27 Sep 2006 01:50:19 -0700 Subject: [PATCH] NOMMU: Implement /proc/pid/maps for NOMMU Implement /proc/pid/maps for NOMMU by reading the vm_area_list attached to current->mm->context.vmlist. Signed-off-by: David Howells Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- Documentation/nommu-mmap.txt | 3 ++ fs/proc/internal.h | 1 + fs/proc/nommu.c | 20 ++++++++---- fs/proc/task_nommu.c | 74 +++++++++++++++++++++++++++++++++++--------- include/linux/proc_fs.h | 2 ++ 5 files changed, 80 insertions(+), 20 deletions(-) (limited to 'include') diff --git a/Documentation/nommu-mmap.txt b/Documentation/nommu-mmap.txt index b88ebe4d808c..83f4b083d57e 100644 --- a/Documentation/nommu-mmap.txt +++ b/Documentation/nommu-mmap.txt @@ -116,6 +116,9 @@ FURTHER NOTES ON NO-MMU MMAP (*) A list of all the mappings on the system is visible through /proc/maps in no-MMU mode. + (*) A list of all the mappings in use by a process is visible through + /proc//maps in no-MMU mode. + (*) Supplying MAP_FIXED or a requesting a particular mapping address will result in an error. diff --git a/fs/proc/internal.h b/fs/proc/internal.h index 146a434ba944..987c773dbb20 100644 --- a/fs/proc/internal.h +++ b/fs/proc/internal.h @@ -28,6 +28,7 @@ do { \ (vmi)->largest_chunk = 0; \ } while(0) +extern int nommu_vma_show(struct seq_file *, struct vm_area_struct *); #endif extern void create_seq_entry(char *name, mode_t mode, const struct file_operations *f); diff --git a/fs/proc/nommu.c b/fs/proc/nommu.c index cff10ab1af63..d7dbdf9e0f49 100644 --- a/fs/proc/nommu.c +++ b/fs/proc/nommu.c @@ -33,19 +33,15 @@ #include "internal.h" /* - * display a list of all the VMAs the kernel knows about - * - nommu kernals have a single flat list + * display a single VMA to a sequenced file */ -static int nommu_vma_list_show(struct seq_file *m, void *v) +int nommu_vma_show(struct seq_file *m, struct vm_area_struct *vma) { - struct vm_area_struct *vma; unsigned long ino = 0; struct file *file; dev_t dev = 0; int flags, len; - vma = rb_entry((struct rb_node *) v, struct vm_area_struct, vm_rb); - flags = vma->vm_flags; file = vma->vm_file; @@ -78,6 +74,18 @@ static int nommu_vma_list_show(struct seq_file *m, void *v) return 0; } +/* + * display a list of all the VMAs the kernel knows about + * - nommu kernals have a single flat list + */ +static int nommu_vma_list_show(struct seq_file *m, void *v) +{ + struct vm_area_struct *vma; + + vma = rb_entry((struct rb_node *) v, struct vm_area_struct, vm_rb); + return nommu_vma_show(m, vma); +} + static void *nommu_vma_list_start(struct seq_file *m, loff_t *_pos) { struct rb_node *_rb; diff --git a/fs/proc/task_nommu.c b/fs/proc/task_nommu.c index 4616ed50ffcd..091aa8e48e02 100644 --- a/fs/proc/task_nommu.c +++ b/fs/proc/task_nommu.c @@ -138,25 +138,63 @@ out: } /* - * Albert D. Cahalan suggested to fake entries for the traditional - * sections here. This might be worth investigating. + * display mapping lines for a particular process's /proc/pid/maps */ -static int show_map(struct seq_file *m, void *v) +static int show_map(struct seq_file *m, void *_vml) { - return 0; + struct vm_list_struct *vml = _vml; + return nommu_vma_show(m, vml->vma); } + static void *m_start(struct seq_file *m, loff_t *pos) { + struct proc_maps_private *priv = m->private; + struct vm_list_struct *vml; + struct mm_struct *mm; + loff_t n = *pos; + + /* pin the task and mm whilst we play with them */ + priv->task = get_pid_task(priv->pid, PIDTYPE_PID); + if (!priv->task) + return NULL; + + mm = get_task_mm(priv->task); + if (!mm) { + put_task_struct(priv->task); + priv->task = NULL; + return NULL; + } + + down_read(&mm->mmap_sem); + + /* start from the Nth VMA */ + for (vml = mm->context.vmlist; vml; vml = vml->next) + if (n-- == 0) + return vml; return NULL; } -static void m_stop(struct seq_file *m, void *v) + +static void m_stop(struct seq_file *m, void *_vml) { + struct proc_maps_private *priv = m->private; + + if (priv->task) { + struct mm_struct *mm = priv->task->mm; + up_read(&mm->mmap_sem); + mmput(mm); + put_task_struct(priv->task); + } } -static void *m_next(struct seq_file *m, void *v, loff_t *pos) + +static void *m_next(struct seq_file *m, void *_vml, loff_t *pos) { - return NULL; + struct vm_list_struct *vml = _vml; + + (*pos)++; + return vml ? vml->next : NULL; } -static struct seq_operations proc_pid_maps_op = { + +static struct seq_operations proc_pid_maps_ops = { .start = m_start, .next = m_next, .stop = m_stop, @@ -165,11 +203,19 @@ static struct seq_operations proc_pid_maps_op = { static int maps_open(struct inode *inode, struct file *file) { - int ret; - ret = seq_open(file, &proc_pid_maps_op); - if (!ret) { - struct seq_file *m = file->private_data; - m->private = NULL; + struct proc_maps_private *priv; + int ret = -ENOMEM; + + priv = kzalloc(sizeof(*priv), GFP_KERNEL); + if (priv) { + priv->pid = proc_pid(inode); + ret = seq_open(file, &proc_pid_maps_ops); + if (!ret) { + struct seq_file *m = file->private_data; + m->private = priv; + } else { + kfree(priv); + } } return ret; } @@ -178,6 +224,6 @@ struct file_operations proc_maps_operations = { .open = maps_open, .read = seq_read, .llseek = seq_lseek, - .release = seq_release, + .release = seq_release_private, }; diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h index 3435ca38dd14..57f70bc8b24b 100644 --- a/include/linux/proc_fs.h +++ b/include/linux/proc_fs.h @@ -268,7 +268,9 @@ static inline struct proc_dir_entry *PDE(const struct inode *inode) struct proc_maps_private { struct pid *pid; struct task_struct *task; +#ifdef CONFIG_MMU struct vm_area_struct *tail_vma; +#endif }; #endif /* _LINUX_PROC_FS_H */ -- cgit v1.2.3 From f269fdd1829acc5e53bf57b145003e5733133f2b Mon Sep 17 00:00:00 2001 From: David Howells Date: Wed, 27 Sep 2006 01:50:23 -0700 Subject: [PATCH] NOMMU: move the fallback arch_vma_name() to a sensible place Move the fallback arch_vma_name() to a sensible place (kernel/signal.c). Currently it's in fs/proc/task_mmu.c, a file that is dependent on both CONFIG_PROC_FS and CONFIG_MMU being enabled, but it's used from kernel/signal.c from where it is called unconditionally. [akpm@osdl.org: build fix] Signed-off-by: David Howells Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/proc/task_mmu.c | 5 ----- include/linux/mm.h | 2 +- kernel/signal.c | 5 +++++ 3 files changed, 6 insertions(+), 6 deletions(-) (limited to 'include') diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c index 0a163a4f7764..6b769afac55a 100644 --- a/fs/proc/task_mmu.c +++ b/fs/proc/task_mmu.c @@ -122,11 +122,6 @@ struct mem_size_stats unsigned long private_dirty; }; -__attribute__((weak)) const char *arch_vma_name(struct vm_area_struct *vma) -{ - return NULL; -} - static int show_map_internal(struct seq_file *m, void *v, struct mem_size_stats *mss) { struct proc_maps_private *priv = m->private; diff --git a/include/linux/mm.h b/include/linux/mm.h index 22165cb18906..7b703b6d4358 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -1131,7 +1131,7 @@ void drop_slab(void); extern int randomize_va_space; #endif -const char *arch_vma_name(struct vm_area_struct *vma); +__attribute__((weak)) const char *arch_vma_name(struct vm_area_struct *vma); #endif /* __KERNEL__ */ #endif /* _LINUX_MM_H */ diff --git a/kernel/signal.c b/kernel/signal.c index bfdb5686fa3e..05853a7337e3 100644 --- a/kernel/signal.c +++ b/kernel/signal.c @@ -2577,6 +2577,11 @@ asmlinkage long sys_rt_sigsuspend(sigset_t __user *unewset, size_t sigsetsize) } #endif /* __ARCH_WANT_SYS_RT_SIGSUSPEND */ +__attribute__((weak)) const char *arch_vma_name(struct vm_area_struct *vma) +{ + return NULL; +} + void __init signals_init(void) { sigqueue_cachep = -- cgit v1.2.3 From a27f3113322edff36743014cc9e752a21ffc0324 Mon Sep 17 00:00:00 2001 From: Hirokazu Takata Date: Wed, 27 Sep 2006 01:50:24 -0700 Subject: [PATCH] m32r: Fix "value computed not used" warnings Fix to remove annoying gcc-4.1 warnings "value computed not used" for m32r; Modify set_mb to cast to void for SMP. Signed-off-by: Hirokazu Takata Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-m32r/system.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/asm-m32r/system.h b/include/asm-m32r/system.h index 9e618afec6ed..4ce0619f6989 100644 --- a/include/asm-m32r/system.h +++ b/include/asm-m32r/system.h @@ -328,15 +328,15 @@ __cmpxchg(volatile void *ptr, unsigned long old, unsigned long new, int size) #define smp_rmb() rmb() #define smp_wmb() wmb() #define smp_read_barrier_depends() read_barrier_depends() +#define set_mb(var, value) do { (void) xchg(&var, value); } while (0) #else #define smp_mb() barrier() #define smp_rmb() barrier() #define smp_wmb() barrier() #define smp_read_barrier_depends() do { } while (0) +#define set_mb(var, value) do { var = value; barrier(); } while (0) #endif -#define set_mb(var, value) do { xchg(&var, value); } while (0) - #define arch_align_stack(x) (x) #endif /* _ASM_M32R_SYSTEM_H */ -- cgit v1.2.3 From 85f651794c46e8e3faf204a767d1caa7f9f278f0 Mon Sep 17 00:00:00 2001 From: Hirokazu Takata Date: Wed, 27 Sep 2006 01:50:24 -0700 Subject: [PATCH] m32r: revise __raw_read_trylock() Signed-off-by: Hirokazu Takata Cc: Matthew Wilcox Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-m32r/spinlock.h | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/asm-m32r/spinlock.h b/include/asm-m32r/spinlock.h index f94c1a673569..f9f90727a4a1 100644 --- a/include/asm-m32r/spinlock.h +++ b/include/asm-m32r/spinlock.h @@ -298,7 +298,14 @@ static inline void __raw_write_unlock(raw_rwlock_t *rw) ); } -#define __raw_read_trylock(lock) generic__raw_read_trylock(lock) +static inline int __raw_read_trylock(raw_rwlock_t *lock) +{ + atomic_t *count = (atomic_t*)lock; + if (atomic_dec_return(count) >= 0) + return 1; + atomic_inc(count); + return 0; +} static inline int __raw_write_trylock(raw_rwlock_t *lock) { -- cgit v1.2.3 From a8b4fc4d7c3ccf80d4fa1805cee85c06c2aa653e Mon Sep 17 00:00:00 2001 From: Jeff Dike Date: Wed, 27 Sep 2006 01:50:35 -0700 Subject: [PATCH] uml: fix missing x86_64 register definitions The UML/x86_64 headers were missing ptrace support for some segment registers. The underlying problem was that the x86_64 kernel uses user_regs_struct rather than the ptrace register definitions in ptrace. This patch switches UML/x86_64 to using user_regs_struct for its definitions of the host's registers. Signed-off-by: Jeff Dike Cc: Paolo 'Blaisorblade' Giarrusso Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/um/include/sysdep-x86_64/ptrace.h | 43 +++++++++++++++++++++++++++++++--- arch/um/include/sysdep-x86_64/sc.h | 2 +- include/asm-um/ptrace-x86_64.h | 3 +++ 3 files changed, 44 insertions(+), 4 deletions(-) (limited to 'include') diff --git a/arch/um/include/sysdep-x86_64/ptrace.h b/arch/um/include/sysdep-x86_64/ptrace.h index 8d353f0feec1..617bb9efc934 100644 --- a/arch/um/include/sysdep-x86_64/ptrace.h +++ b/arch/um/include/sysdep-x86_64/ptrace.h @@ -50,6 +50,21 @@ #define HOST_FS 25 #define HOST_GS 26 +/* Also defined in asm/ptrace-x86_64.h, but not in libc headers. So, these + * are already defined for kernel code, but not for userspace code. + */ +#ifndef FS_BASE +/* These aren't defined in ptrace.h, but exist in struct user_regs_struct, + * which is what x86_64 ptrace actually uses. + */ +#define FS_BASE (HOST_FS_BASE * sizeof(long)) +#define GS_BASE (HOST_GS_BASE * sizeof(long)) +#define DS (HOST_DS * sizeof(long)) +#define ES (HOST_ES * sizeof(long)) +#define FS (HOST_FS * sizeof(long)) +#define GS (HOST_GS * sizeof(long)) +#endif + #define REGS_FS_BASE(r) ((r)[HOST_FS_BASE]) #define REGS_GS_BASE(r) ((r)[HOST_GS_BASE]) #define REGS_DS(r) ((r)[HOST_DS]) @@ -89,9 +104,12 @@ union uml_pt_regs { #endif #ifdef UML_CONFIG_MODE_SKAS struct skas_regs { - /* XXX */ - unsigned long regs[27]; - unsigned long fp[65]; + /* x86_64 ptrace uses sizeof(user_regs_struct) as its register + * file size, while i386 uses FRAME_SIZE. Therefore, we need + * to use UM_FRAME_SIZE here instead of HOST_FRAME_SIZE. + */ + unsigned long regs[UM_FRAME_SIZE]; + unsigned long fp[HOST_FP_SIZE]; struct faultinfo faultinfo; long syscall; int is_user; @@ -120,11 +138,16 @@ extern int mode_tt; #define UPT_R14(r) __CHOOSE_MODE(SC_R14(UPT_SC(r)), REGS_R14((r)->skas.regs)) #define UPT_R15(r) __CHOOSE_MODE(SC_R15(UPT_SC(r)), REGS_R15((r)->skas.regs)) #define UPT_CS(r) __CHOOSE_MODE(SC_CS(UPT_SC(r)), REGS_CS((r)->skas.regs)) +#define UPT_FS_BASE(r) \ + __CHOOSE_MODE(SC_FS_BASE(UPT_SC(r)), REGS_FS_BASE((r)->skas.regs)) #define UPT_FS(r) __CHOOSE_MODE(SC_FS(UPT_SC(r)), REGS_FS((r)->skas.regs)) +#define UPT_GS_BASE(r) \ + __CHOOSE_MODE(SC_GS_BASE(UPT_SC(r)), REGS_GS_BASE((r)->skas.regs)) #define UPT_GS(r) __CHOOSE_MODE(SC_GS(UPT_SC(r)), REGS_GS((r)->skas.regs)) #define UPT_DS(r) __CHOOSE_MODE(SC_DS(UPT_SC(r)), REGS_DS((r)->skas.regs)) #define UPT_ES(r) __CHOOSE_MODE(SC_ES(UPT_SC(r)), REGS_ES((r)->skas.regs)) #define UPT_CS(r) __CHOOSE_MODE(SC_CS(UPT_SC(r)), REGS_CS((r)->skas.regs)) +#define UPT_SS(r) __CHOOSE_MODE(SC_SS(UPT_SC(r)), REGS_SS((r)->skas.regs)) #define UPT_ORIG_RAX(r) \ __CHOOSE_MODE((r)->tt.orig_rax, REGS_ORIG_RAX((r)->skas.regs)) @@ -183,6 +206,13 @@ struct syscall_args { case RBP: val = UPT_RBP(regs); break; \ case ORIG_RAX: val = UPT_ORIG_RAX(regs); break; \ case CS: val = UPT_CS(regs); break; \ + case SS: val = UPT_SS(regs); break; \ + case FS_BASE: val = UPT_FS_BASE(regs); break; \ + case GS_BASE: val = UPT_GS_BASE(regs); break; \ + case DS: val = UPT_DS(regs); break; \ + case ES: val = UPT_ES(regs); break; \ + case FS : val = UPT_FS (regs); break; \ + case GS: val = UPT_GS(regs); break; \ case EFLAGS: val = UPT_EFLAGS(regs); break; \ default : \ panic("Bad register in UPT_REG : %d\n", reg); \ @@ -214,6 +244,13 @@ struct syscall_args { case RBP: UPT_RBP(regs) = __upt_val; break; \ case ORIG_RAX: UPT_ORIG_RAX(regs) = __upt_val; break; \ case CS: UPT_CS(regs) = __upt_val; break; \ + case SS: UPT_SS(regs) = __upt_val; break; \ + case FS_BASE: UPT_FS_BASE(regs) = __upt_val; break; \ + case GS_BASE: UPT_GS_BASE(regs) = __upt_val; break; \ + case DS: UPT_DS(regs) = __upt_val; break; \ + case ES: UPT_ES(regs) = __upt_val; break; \ + case FS: UPT_FS(regs) = __upt_val; break; \ + case GS: UPT_GS(regs) = __upt_val; break; \ case EFLAGS: UPT_EFLAGS(regs) = __upt_val; break; \ default : \ panic("Bad register in UPT_SET : %d\n", reg); \ diff --git a/arch/um/include/sysdep-x86_64/sc.h b/arch/um/include/sysdep-x86_64/sc.h index a160d9fcc596..8aee45b07434 100644 --- a/arch/um/include/sysdep-x86_64/sc.h +++ b/arch/um/include/sysdep-x86_64/sc.h @@ -35,11 +35,11 @@ #define SC_GS(sc) SC_OFFSET(sc, SC_GS) #define SC_EFLAGS(sc) SC_OFFSET(sc, SC_EFLAGS) #define SC_SIGMASK(sc) SC_OFFSET(sc, SC_SIGMASK) +#define SC_SS(sc) SC_OFFSET(sc, SC_SS) #if 0 #define SC_ORIG_RAX(sc) SC_OFFSET(sc, SC_ORIG_RAX) #define SC_DS(sc) SC_OFFSET(sc, SC_DS) #define SC_ES(sc) SC_OFFSET(sc, SC_ES) -#define SC_SS(sc) SC_OFFSET(sc, SC_SS) #endif #endif diff --git a/include/asm-um/ptrace-x86_64.h b/include/asm-um/ptrace-x86_64.h index 2074483e6ca4..03b4af4ac09a 100644 --- a/include/asm-um/ptrace-x86_64.h +++ b/include/asm-um/ptrace-x86_64.h @@ -16,12 +16,15 @@ #define HOST_AUDIT_ARCH AUDIT_ARCH_X86_64 +/* Also defined in sysdep/ptrace.h, so may already be defined. */ +#ifndef FS_BASE #define FS_BASE (21 * sizeof(unsigned long)) #define GS_BASE (22 * sizeof(unsigned long)) #define DS (23 * sizeof(unsigned long)) #define ES (24 * sizeof(unsigned long)) #define FS (25 * sizeof(unsigned long)) #define GS (26 * sizeof(unsigned long)) +#endif #define PT_REGS_RBX(r) UPT_RBX(&(r)->regs) #define PT_REGS_RCX(r) UPT_RCX(&(r)->regs) -- cgit v1.2.3 From 3c9173509985b957bea692ea887a8a0e5055cfe8 Mon Sep 17 00:00:00 2001 From: Jeff Dike Date: Wed, 27 Sep 2006 01:50:40 -0700 Subject: [PATCH] uml: thread creation tidying fork on UML has always somewhat subtle. The underlying cause has been the need to initialize a stack for the new process. The only portable way to initialize a new stack is to set it as the alternate signal stack and take a signal. The signal handler does whatever initialization is needed and jumps back to the original stack, where the fork processing is finished. The basic context switching mechanism is a jmp_buf for each process. You switch to a new process by longjmping to its jmp_buf. Now that UML has its own implementation of setjmp and longjmp, and I can poke around inside a jmp_buf without fear that libc will change the structure, a much simpler mechanism is possible. The jmpbuf can simply be initialized by hand. This eliminates - the need to set up and remove the alternate signal stack sending and handling a signal the signal blocking needed around the stack switching, since there is no stack switching setting up the jmp_buf needed to jump back to the original stack after the new one is set up In addition, since jmp_buf is now defined by UML, and not by libc, it can be embedded in the thread struct. This makes it unnecessary to have it exist on the stack, where it used to be. It also simplifies interfaces, since the switch jmp_buf used to be a void * inside the thread struct, and functions which took it as an argument needed to define a jmp_buf variable and assign it from the void *. Signed-off-by: Jeff Dike Cc: Paolo 'Blaisorblade' Giarrusso Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/um/include/os.h | 10 ++--- arch/um/include/skas/skas.h | 3 +- arch/um/include/sysdep-i386/archsetjmp.h | 3 ++ arch/um/include/sysdep-x86_64/archsetjmp.h | 3 ++ arch/um/kernel/skas/process_kern.c | 36 ++++++---------- arch/um/os-Linux/skas/process.c | 68 +++++++----------------------- include/asm-um/processor-generic.h | 6 +-- 7 files changed, 43 insertions(+), 86 deletions(-) (limited to 'include') diff --git a/arch/um/include/os.h b/arch/um/include/os.h index be71b3d4c961..120ca21a513a 100644 --- a/arch/um/include/os.h +++ b/arch/um/include/os.h @@ -14,6 +14,7 @@ #include "skas/mm_id.h" #include "irq_user.h" #include "sysdep/tls.h" +#include "sysdep/archsetjmp.h" #define OS_TYPE_FILE 1 #define OS_TYPE_DIR 2 @@ -308,12 +309,9 @@ extern int copy_context_skas0(unsigned long stack, int pid); extern void userspace(union uml_pt_regs *regs); extern void map_stub_pages(int fd, unsigned long code, unsigned long data, unsigned long stack); -extern void new_thread(void *stack, void **switch_buf_ptr, - void **fork_buf_ptr, void (*handler)(int)); -extern void thread_wait(void *sw, void *fb); -extern void switch_threads(void *me, void *next); -extern int start_idle_thread(void *stack, void *switch_buf_ptr, - void **fork_buf_ptr); +extern void new_thread(void *stack, jmp_buf *buf, void (*handler)(void)); +extern void switch_threads(jmp_buf *me, jmp_buf *you); +extern int start_idle_thread(void *stack, jmp_buf *switch_buf); extern void initial_thread_cb_skas(void (*proc)(void *), void *arg); extern void halt_skas(void); diff --git a/arch/um/include/skas/skas.h b/arch/um/include/skas/skas.h index 853b26f148c5..e88926b16072 100644 --- a/arch/um/include/skas/skas.h +++ b/arch/um/include/skas/skas.h @@ -14,8 +14,7 @@ extern int proc_mm, ptrace_faultinfo, ptrace_ldt; extern int skas_needs_stub; extern int user_thread(unsigned long stack, int flags); -extern void new_thread_proc(void *stack, void (*handler)(int sig)); -extern void new_thread_handler(int sig); +extern void new_thread_handler(void); extern void handle_syscall(union uml_pt_regs *regs); extern int new_mm(unsigned long stack); extern void get_skas_faultinfo(int pid, struct faultinfo * fi); diff --git a/arch/um/include/sysdep-i386/archsetjmp.h b/arch/um/include/sysdep-i386/archsetjmp.h index ea1ba3d42aee..11bafab669e9 100644 --- a/arch/um/include/sysdep-i386/archsetjmp.h +++ b/arch/um/include/sysdep-i386/archsetjmp.h @@ -16,4 +16,7 @@ struct __jmp_buf { typedef struct __jmp_buf jmp_buf[1]; +#define JB_IP __eip +#define JB_SP __esp + #endif /* _SETJMP_H */ diff --git a/arch/um/include/sysdep-x86_64/archsetjmp.h b/arch/um/include/sysdep-x86_64/archsetjmp.h index 454fc60aff6d..9a5e1a6ec800 100644 --- a/arch/um/include/sysdep-x86_64/archsetjmp.h +++ b/arch/um/include/sysdep-x86_64/archsetjmp.h @@ -18,4 +18,7 @@ struct __jmp_buf { typedef struct __jmp_buf jmp_buf[1]; +#define JB_IP __rip +#define JB_SP __rsp + #endif /* _SETJMP_H */ diff --git a/arch/um/kernel/skas/process_kern.c b/arch/um/kernel/skas/process_kern.c index 55caeec8b257..c73d47c57abe 100644 --- a/arch/um/kernel/skas/process_kern.c +++ b/arch/um/kernel/skas/process_kern.c @@ -33,7 +33,7 @@ void switch_to_skas(void *prev, void *next) switch_timers(0); switch_threads(&from->thread.mode.skas.switch_buf, - to->thread.mode.skas.switch_buf); + &to->thread.mode.skas.switch_buf); arch_switch_to_skas(current->thread.prev_sched, current); @@ -43,21 +43,21 @@ void switch_to_skas(void *prev, void *next) extern void schedule_tail(struct task_struct *prev); -void new_thread_handler(int sig) +/* This is called magically, by its address being stuffed in a jmp_buf + * and being longjmp-d to. + */ +void new_thread_handler(void) { int (*fn)(void *), n; void *arg; - fn = current->thread.request.u.thread.proc; - arg = current->thread.request.u.thread.arg; - os_usr1_signal(1); - thread_wait(¤t->thread.mode.skas.switch_buf, - current->thread.mode.skas.fork_buf); - if(current->thread.prev_sched != NULL) schedule_tail(current->thread.prev_sched); current->thread.prev_sched = NULL; + fn = current->thread.request.u.thread.proc; + arg = current->thread.request.u.thread.arg; + /* The return value is 1 if the kernel thread execs a process, * 0 if it just exits */ @@ -70,22 +70,13 @@ void new_thread_handler(int sig) else do_exit(0); } -void new_thread_proc(void *stack, void (*handler)(int sig)) -{ - init_new_thread_stack(stack, handler); - os_usr1_process(os_getpid()); -} - void release_thread_skas(struct task_struct *task) { } -void fork_handler(int sig) +/* Called magically, see new_thread_handler above */ +void fork_handler(void) { - os_usr1_signal(1); - thread_wait(¤t->thread.mode.skas.switch_buf, - current->thread.mode.skas.fork_buf); - force_flush_all(); if(current->thread.prev_sched == NULL) panic("blech"); @@ -109,7 +100,7 @@ int copy_thread_skas(int nr, unsigned long clone_flags, unsigned long sp, unsigned long stack_top, struct task_struct * p, struct pt_regs *regs) { - void (*handler)(int); + void (*handler)(void); if(current->thread.forking){ memcpy(&p->thread.regs.regs.skas, ®s->regs.skas, @@ -128,7 +119,7 @@ int copy_thread_skas(int nr, unsigned long clone_flags, unsigned long sp, } new_thread(task_stack_page(p), &p->thread.mode.skas.switch_buf, - &p->thread.mode.skas.fork_buf, handler); + handler); return(0); } @@ -182,8 +173,7 @@ int start_uml_skas(void) init_task.thread.request.u.thread.proc = start_kernel_proc; init_task.thread.request.u.thread.arg = NULL; return(start_idle_thread(task_stack_page(&init_task), - &init_task.thread.mode.skas.switch_buf, - &init_task.thread.mode.skas.fork_buf)); + &init_task.thread.mode.skas.switch_buf)); } int external_pid_skas(struct task_struct *task) diff --git a/arch/um/os-Linux/skas/process.c b/arch/um/os-Linux/skas/process.c index 42e3d1ed802c..cb9ab54146cc 100644 --- a/arch/um/os-Linux/skas/process.c +++ b/arch/um/os-Linux/skas/process.c @@ -444,56 +444,22 @@ void map_stub_pages(int fd, unsigned long code, } } -void new_thread(void *stack, void **switch_buf_ptr, void **fork_buf_ptr, - void (*handler)(int)) +void new_thread(void *stack, jmp_buf *buf, void (*handler)(void)) { - unsigned long flags; - jmp_buf switch_buf, fork_buf; - - *switch_buf_ptr = &switch_buf; - *fork_buf_ptr = &fork_buf; - - /* Somewhat subtle - siglongjmp restores the signal mask before doing - * the longjmp. This means that when jumping from one stack to another - * when the target stack has interrupts enabled, an interrupt may occur - * on the source stack. This is bad when starting up a process because - * it's not supposed to get timer ticks until it has been scheduled. - * So, we disable interrupts around the sigsetjmp to ensure that - * they can't happen until we get back here where they are safe. - */ - flags = get_signals(); - block_signals(); - if(UML_SETJMP(&fork_buf) == 0) - new_thread_proc(stack, handler); - - remove_sigstack(); - - set_signals(flags); + (*buf)[0].JB_IP = (unsigned long) handler; + (*buf)[0].JB_SP = (unsigned long) stack + + (PAGE_SIZE << UML_CONFIG_KERNEL_STACK_ORDER) - sizeof(void *); } #define INIT_JMP_NEW_THREAD 0 -#define INIT_JMP_REMOVE_SIGSTACK 1 -#define INIT_JMP_CALLBACK 2 -#define INIT_JMP_HALT 3 -#define INIT_JMP_REBOOT 4 - -void thread_wait(void *sw, void *fb) -{ - jmp_buf buf, **switch_buf = sw, *fork_buf; - - *switch_buf = &buf; - fork_buf = fb; - if(UML_SETJMP(&buf) == 0) - UML_LONGJMP(fork_buf, INIT_JMP_REMOVE_SIGSTACK); -} +#define INIT_JMP_CALLBACK 1 +#define INIT_JMP_HALT 2 +#define INIT_JMP_REBOOT 3 -void switch_threads(void *me, void *next) +void switch_threads(jmp_buf *me, jmp_buf *you) { - jmp_buf my_buf, **me_ptr = me, *next_buf = next; - - *me_ptr = &my_buf; - if(UML_SETJMP(&my_buf) == 0) - UML_LONGJMP(next_buf, 1); + if(UML_SETJMP(me) == 0) + UML_LONGJMP(you, 1); } static jmp_buf initial_jmpbuf; @@ -503,23 +469,21 @@ static void (*cb_proc)(void *arg); static void *cb_arg; static jmp_buf *cb_back; -int start_idle_thread(void *stack, void *switch_buf_ptr, void **fork_buf_ptr) +int start_idle_thread(void *stack, jmp_buf *switch_buf) { - jmp_buf **switch_buf = switch_buf_ptr; int n; set_handler(SIGWINCH, (__sighandler_t) sig_handler, SA_ONSTACK | SA_RESTART, SIGUSR1, SIGIO, SIGALRM, SIGVTALRM, -1); - *fork_buf_ptr = &initial_jmpbuf; n = UML_SETJMP(&initial_jmpbuf); switch(n){ case INIT_JMP_NEW_THREAD: - new_thread_proc((void *) stack, new_thread_handler); - break; - case INIT_JMP_REMOVE_SIGSTACK: - remove_sigstack(); + (*switch_buf)[0].JB_IP = (unsigned long) new_thread_handler; + (*switch_buf)[0].JB_SP = (unsigned long) stack + + (PAGE_SIZE << UML_CONFIG_KERNEL_STACK_ORDER) - + sizeof(void *); break; case INIT_JMP_CALLBACK: (*cb_proc)(cb_arg); @@ -534,7 +498,7 @@ int start_idle_thread(void *stack, void *switch_buf_ptr, void **fork_buf_ptr) default: panic("Bad sigsetjmp return in start_idle_thread - %d\n", n); } - UML_LONGJMP(*switch_buf, 1); + UML_LONGJMP(switch_buf, 1); } void initial_thread_cb_skas(void (*proc)(void *), void *arg) diff --git a/include/asm-um/processor-generic.h b/include/asm-um/processor-generic.h index afa4fe1ca9f1..d99bbddffdb9 100644 --- a/include/asm-um/processor-generic.h +++ b/include/asm-um/processor-generic.h @@ -13,6 +13,7 @@ struct task_struct; #include "asm/ptrace.h" #include "choose-mode.h" #include "registers.h" +#include "sysdep/archsetjmp.h" struct mm_struct; @@ -43,8 +44,7 @@ struct thread_struct { #endif #ifdef CONFIG_MODE_SKAS struct { - void *switch_buf; - void *fork_buf; + jmp_buf switch_buf; int mm_count; } skas; #endif @@ -138,7 +138,7 @@ extern struct cpuinfo_um cpu_data[]; #ifdef CONFIG_MODE_SKAS #define KSTK_REG(tsk, reg) \ - get_thread_reg(reg, tsk->thread.mode.skas.switch_buf) + get_thread_reg(reg, &tsk->thread.mode.skas.switch_buf) #else #define KSTK_REG(tsk, reg) (0xbadbabe) #endif -- cgit v1.2.3 From 7e96287ddc4f42081e18248b6167041c0908004c Mon Sep 17 00:00:00 2001 From: Vivek Goyal Date: Wed, 27 Sep 2006 01:50:44 -0700 Subject: [PATCH] kdump: introduce "reset_devices" command line option Resetting the devices during driver initialization can be a costly operation in terms of time (especially scsi devices). This option can be used by drivers to know that user forcibly wants the devices to be reset during initialization. This option can be useful while kernel is booting in unreliable environment. For ex. during kdump boot where devices are in unknown random state and BIOS execution has been skipped. Signed-off-by: Vivek Goyal Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- Documentation/kernel-parameters.txt | 3 +++ include/linux/init.h | 1 + init/main.c | 20 ++++++++++++++++++++ 3 files changed, 24 insertions(+) (limited to 'include') diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 255ec535bba8..54983246930d 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -1370,6 +1370,9 @@ running once the system is up. Reserves a hole at the top of the kernel virtual address space. + reset_devices [KNL] Force drivers to reset the underlying device + during initialization. + resume= [SWSUSP] Specify the partition device for software suspend diff --git a/include/linux/init.h b/include/linux/init.h index 6667785dd1ff..e92b1455d7af 100644 --- a/include/linux/init.h +++ b/include/linux/init.h @@ -68,6 +68,7 @@ extern initcall_t __security_initcall_start[], __security_initcall_end[]; /* Defined in init/main.c */ extern char saved_command_line[]; +extern unsigned int reset_devices; /* used by init/main.c */ extern void setup_arch(char **); diff --git a/init/main.c b/init/main.c index 913e48d658ee..0766e69712b2 100644 --- a/init/main.c +++ b/init/main.c @@ -127,6 +127,18 @@ static char *ramdisk_execute_command; /* Setup configured maximum number of CPUs to activate */ static unsigned int max_cpus = NR_CPUS; +/* + * If set, this is an indication to the drivers that reset the underlying + * device before going ahead with the initialization otherwise driver might + * rely on the BIOS and skip the reset operation. + * + * This is useful if kernel is booting in an unreliable environment. + * For ex. kdump situaiton where previous kernel has crashed, BIOS has been + * skipped and devices will be in unknown state. + */ +unsigned int reset_devices; +EXPORT_SYMBOL(reset_devices); + /* * Setup routine for controlling SMP activation * @@ -153,6 +165,14 @@ static int __init maxcpus(char *str) __setup("maxcpus=", maxcpus); +static int __init set_reset_devices(char *str) +{ + reset_devices = 1; + return 1; +} + +__setup("reset_devices", set_reset_devices); + static char * argv_init[MAX_INIT_ARGS+2] = { "init", NULL, }; char * envp_init[MAX_INIT_ENVS+2] = { "HOME=/", "TERM=linux", NULL, }; static const char *panic_later, *panic_param; -- cgit v1.2.3 From 8e18e2941c53416aa219708e7dcad21fb4bd6794 Mon Sep 17 00:00:00 2001 From: Theodore Ts'o Date: Wed, 27 Sep 2006 01:50:46 -0700 Subject: [PATCH] inode_diet: Replace inode.u.generic_ip with inode.i_private The following patches reduce the size of the VFS inode structure by 28 bytes on a UP x86. (It would be more on an x86_64 system). This is a 10% reduction in the inode size on a UP kernel that is configured in a production mode (i.e., with no spinlock or other debugging functions enabled; if you want to save memory taken up by in-core inodes, the first thing you should do is disable the debugging options; they are responsible for a huge amount of bloat in the VFS inode structure). This patch: The filesystem or device-specific pointer in the inode is inside a union, which is pretty pointless given that all 30+ users of this field have been using the void pointer. Get rid of the union and rename it to i_private, with a comment to explain who is allowed to use the void pointer. This is just a cleanup, but it allows us to reuse the union 'u' for something something where the union will actually be used. [judith@osdl.org: powerpc build fix] Signed-off-by: "Theodore Ts'o" Signed-off-by: Judith Lebzelter Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/powerpc/platforms/cell/spufs/inode.c | 2 +- arch/powerpc/platforms/pseries/hvCall_inst.c | 2 +- arch/s390/hypfs/inode.c | 6 ++--- arch/s390/kernel/debug.c | 2 +- block/blktrace.c | 2 +- drivers/i2c/chips/tps65010.c | 2 +- drivers/infiniband/hw/ipath/ipath_fs.c | 12 ++++----- drivers/infiniband/ulp/ipoib/ipoib_fs.c | 4 +-- drivers/misc/ibmasm/ibmasmfs.c | 16 ++++++------ drivers/net/irda/vlsi_ir.h | 2 +- drivers/net/wireless/bcm43xx/bcm43xx_debugfs.c | 2 +- drivers/oprofile/oprofilefs.c | 10 ++++---- drivers/pci/hotplug/cpqphp_sysfs.c | 2 +- drivers/usb/core/devio.c | 2 +- drivers/usb/core/inode.c | 6 ++--- drivers/usb/gadget/inode.c | 6 ++--- drivers/usb/host/isp116x-hcd.c | 2 +- drivers/usb/host/uhci-debug.c | 2 +- drivers/usb/mon/mon_stat.c | 2 +- drivers/usb/mon/mon_text.c | 4 +-- fs/autofs/inode.c | 2 +- fs/autofs/symlink.c | 2 +- fs/binfmt_misc.c | 8 +++--- fs/debugfs/file.c | 4 +-- fs/debugfs/inode.c | 4 +-- fs/devpts/inode.c | 4 +-- fs/freevxfs/vxfs.h | 2 +- fs/freevxfs/vxfs_inode.c | 4 +-- fs/fuse/control.c | 6 ++--- fs/inode.c | 2 +- fs/jffs/inode-v23.c | 34 +++++++++++++------------- fs/libfs.c | 2 +- fs/ocfs2/dlmglue.c | 2 +- include/linux/fs.h | 4 +-- kernel/relay.c | 2 +- security/inode.c | 8 +++--- 36 files changed, 88 insertions(+), 90 deletions(-) (limited to 'include') diff --git a/arch/powerpc/platforms/cell/spufs/inode.c b/arch/powerpc/platforms/cell/spufs/inode.c index 7b4572805db9..b837f12a84ae 100644 --- a/arch/powerpc/platforms/cell/spufs/inode.c +++ b/arch/powerpc/platforms/cell/spufs/inode.c @@ -120,7 +120,7 @@ spufs_new_file(struct super_block *sb, struct dentry *dentry, ret = 0; inode->i_op = &spufs_file_iops; inode->i_fop = fops; - inode->u.generic_ip = SPUFS_I(inode)->i_ctx = get_spu_context(ctx); + inode->i_private = SPUFS_I(inode)->i_ctx = get_spu_context(ctx); d_add(dentry, inode); out: return ret; diff --git a/arch/powerpc/platforms/pseries/hvCall_inst.c b/arch/powerpc/platforms/pseries/hvCall_inst.c index 641e6511cf06..446e17d162a5 100644 --- a/arch/powerpc/platforms/pseries/hvCall_inst.c +++ b/arch/powerpc/platforms/pseries/hvCall_inst.c @@ -85,7 +85,7 @@ static int hcall_inst_seq_open(struct inode *inode, struct file *file) rc = seq_open(file, &hcall_inst_seq_ops); seq = file->private_data; - seq->private = file->f_dentry->d_inode->u.generic_ip; + seq->private = file->f_dentry->d_inode->i_private; return rc; } diff --git a/arch/s390/hypfs/inode.c b/arch/s390/hypfs/inode.c index bdade5f2e325..8735024d235b 100644 --- a/arch/s390/hypfs/inode.c +++ b/arch/s390/hypfs/inode.c @@ -104,13 +104,13 @@ static struct inode *hypfs_make_inode(struct super_block *sb, int mode) static void hypfs_drop_inode(struct inode *inode) { - kfree(inode->u.generic_ip); + kfree(inode->i_private); generic_delete_inode(inode); } static int hypfs_open(struct inode *inode, struct file *filp) { - char *data = filp->f_dentry->d_inode->u.generic_ip; + char *data = filp->f_dentry->d_inode->i_private; struct hypfs_sb_info *fs_info; if (filp->f_mode & FMODE_WRITE) { @@ -352,7 +352,7 @@ static struct dentry *hypfs_create_file(struct super_block *sb, parent->d_inode->i_nlink++; } else BUG(); - inode->u.generic_ip = data; + inode->i_private = data; d_instantiate(dentry, inode); dget(dentry); return dentry; diff --git a/arch/s390/kernel/debug.c b/arch/s390/kernel/debug.c index 7ba20922a535..43f3d0c7e132 100644 --- a/arch/s390/kernel/debug.c +++ b/arch/s390/kernel/debug.c @@ -603,7 +603,7 @@ debug_open(struct inode *inode, struct file *file) debug_info_t *debug_info, *debug_info_snapshot; down(&debug_lock); - debug_info = (struct debug_info*)file->f_dentry->d_inode->u.generic_ip; + debug_info = file->f_dentry->d_inode->i_private; /* find debug view */ for (i = 0; i < DEBUG_MAX_VIEWS; i++) { if (!debug_info->views[i]) diff --git a/block/blktrace.c b/block/blktrace.c index 265f7a830619..2b4ef2b89b8d 100644 --- a/block/blktrace.c +++ b/block/blktrace.c @@ -217,7 +217,7 @@ static int blk_trace_remove(request_queue_t *q) static int blk_dropped_open(struct inode *inode, struct file *filp) { - filp->private_data = inode->u.generic_ip; + filp->private_data = inode->i_private; return 0; } diff --git a/drivers/i2c/chips/tps65010.c b/drivers/i2c/chips/tps65010.c index 0be6fd6a267d..6a7578217177 100644 --- a/drivers/i2c/chips/tps65010.c +++ b/drivers/i2c/chips/tps65010.c @@ -305,7 +305,7 @@ static int dbg_show(struct seq_file *s, void *_) static int dbg_tps_open(struct inode *inode, struct file *file) { - return single_open(file, dbg_show, inode->u.generic_ip); + return single_open(file, dbg_show, inode->i_private); } static struct file_operations debug_fops = { diff --git a/drivers/infiniband/hw/ipath/ipath_fs.c b/drivers/infiniband/hw/ipath/ipath_fs.c index a5eb30a06a5c..055cdd089b28 100644 --- a/drivers/infiniband/hw/ipath/ipath_fs.c +++ b/drivers/infiniband/hw/ipath/ipath_fs.c @@ -64,7 +64,7 @@ static int ipathfs_mknod(struct inode *dir, struct dentry *dentry, inode->i_blksize = PAGE_CACHE_SIZE; inode->i_blocks = 0; inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME; - inode->u.generic_ip = data; + inode->i_private = data; if ((mode & S_IFMT) == S_IFDIR) { inode->i_op = &simple_dir_inode_operations; inode->i_nlink++; @@ -119,7 +119,7 @@ static ssize_t atomic_counters_read(struct file *file, char __user *buf, u16 i; struct ipath_devdata *dd; - dd = file->f_dentry->d_inode->u.generic_ip; + dd = file->f_dentry->d_inode->i_private; for (i = 0; i < NUM_COUNTERS; i++) counters[i] = ipath_snap_cntr(dd, i); @@ -139,7 +139,7 @@ static ssize_t atomic_node_info_read(struct file *file, char __user *buf, struct ipath_devdata *dd; u64 guid; - dd = file->f_dentry->d_inode->u.generic_ip; + dd = file->f_dentry->d_inode->i_private; guid = be64_to_cpu(dd->ipath_guid); @@ -178,7 +178,7 @@ static ssize_t atomic_port_info_read(struct file *file, char __user *buf, u32 tmp, tmp2; struct ipath_devdata *dd; - dd = file->f_dentry->d_inode->u.generic_ip; + dd = file->f_dentry->d_inode->i_private; /* so we only initialize non-zero fields. */ memset(portinfo, 0, sizeof portinfo); @@ -325,7 +325,7 @@ static ssize_t flash_read(struct file *file, char __user *buf, goto bail; } - dd = file->f_dentry->d_inode->u.generic_ip; + dd = file->f_dentry->d_inode->i_private; if (ipath_eeprom_read(dd, pos, tmp, count)) { ipath_dev_err(dd, "failed to read from flash\n"); ret = -ENXIO; @@ -381,7 +381,7 @@ static ssize_t flash_write(struct file *file, const char __user *buf, goto bail_tmp; } - dd = file->f_dentry->d_inode->u.generic_ip; + dd = file->f_dentry->d_inode->i_private; if (ipath_eeprom_write(dd, pos, tmp, count)) { ret = -ENXIO; ipath_dev_err(dd, "failed to write to flash\n"); diff --git a/drivers/infiniband/ulp/ipoib/ipoib_fs.c b/drivers/infiniband/ulp/ipoib/ipoib_fs.c index 5dde380e8dbe..f1cb83688b31 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_fs.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_fs.c @@ -141,7 +141,7 @@ static int ipoib_mcg_open(struct inode *inode, struct file *file) return ret; seq = file->private_data; - seq->private = inode->u.generic_ip; + seq->private = inode->i_private; return 0; } @@ -247,7 +247,7 @@ static int ipoib_path_open(struct inode *inode, struct file *file) return ret; seq = file->private_data; - seq->private = inode->u.generic_ip; + seq->private = inode->i_private; return 0; } diff --git a/drivers/misc/ibmasm/ibmasmfs.c b/drivers/misc/ibmasm/ibmasmfs.c index 4a35caff5d02..0e909b617226 100644 --- a/drivers/misc/ibmasm/ibmasmfs.c +++ b/drivers/misc/ibmasm/ibmasmfs.c @@ -175,7 +175,7 @@ static struct dentry *ibmasmfs_create_file (struct super_block *sb, } inode->i_fop = fops; - inode->u.generic_ip = data; + inode->i_private = data; d_add(dentry, inode); return dentry; @@ -244,7 +244,7 @@ static int command_file_open(struct inode *inode, struct file *file) { struct ibmasmfs_command_data *command_data; - if (!inode->u.generic_ip) + if (!inode->i_private) return -ENODEV; command_data = kmalloc(sizeof(struct ibmasmfs_command_data), GFP_KERNEL); @@ -252,7 +252,7 @@ static int command_file_open(struct inode *inode, struct file *file) return -ENOMEM; command_data->command = NULL; - command_data->sp = inode->u.generic_ip; + command_data->sp = inode->i_private; file->private_data = command_data; return 0; } @@ -351,10 +351,10 @@ static int event_file_open(struct inode *inode, struct file *file) struct ibmasmfs_event_data *event_data; struct service_processor *sp; - if (!inode->u.generic_ip) + if (!inode->i_private) return -ENODEV; - sp = inode->u.generic_ip; + sp = inode->i_private; event_data = kmalloc(sizeof(struct ibmasmfs_event_data), GFP_KERNEL); if (!event_data) @@ -439,14 +439,14 @@ static int r_heartbeat_file_open(struct inode *inode, struct file *file) { struct ibmasmfs_heartbeat_data *rhbeat; - if (!inode->u.generic_ip) + if (!inode->i_private) return -ENODEV; rhbeat = kmalloc(sizeof(struct ibmasmfs_heartbeat_data), GFP_KERNEL); if (!rhbeat) return -ENOMEM; - rhbeat->sp = (struct service_processor *)inode->u.generic_ip; + rhbeat->sp = inode->i_private; rhbeat->active = 0; ibmasm_init_reverse_heartbeat(rhbeat->sp, &rhbeat->heartbeat); file->private_data = rhbeat; @@ -508,7 +508,7 @@ static ssize_t r_heartbeat_file_write(struct file *file, const char __user *buf, static int remote_settings_file_open(struct inode *inode, struct file *file) { - file->private_data = inode->u.generic_ip; + file->private_data = inode->i_private; return 0; } diff --git a/drivers/net/irda/vlsi_ir.h b/drivers/net/irda/vlsi_ir.h index a82a4ba8de4f..c37f0bc4c7f9 100644 --- a/drivers/net/irda/vlsi_ir.h +++ b/drivers/net/irda/vlsi_ir.h @@ -58,7 +58,7 @@ typedef void irqreturn_t; /* PDE() introduced in 2.5.4 */ #ifdef CONFIG_PROC_FS -#define PDE(inode) ((inode)->u.generic_ip) +#define PDE(inode) ((inode)->i_private) #endif /* irda crc16 calculation exported in 2.5.42 */ diff --git a/drivers/net/wireless/bcm43xx/bcm43xx_debugfs.c b/drivers/net/wireless/bcm43xx/bcm43xx_debugfs.c index 923275ea0789..b9df06a06ea9 100644 --- a/drivers/net/wireless/bcm43xx/bcm43xx_debugfs.c +++ b/drivers/net/wireless/bcm43xx/bcm43xx_debugfs.c @@ -54,7 +54,7 @@ static ssize_t write_file_dummy(struct file *file, const char __user *buf, static int open_file_generic(struct inode *inode, struct file *file) { - file->private_data = inode->u.generic_ip; + file->private_data = inode->i_private; return 0; } diff --git a/drivers/oprofile/oprofilefs.c b/drivers/oprofile/oprofilefs.c index 71c2da277d6e..deb37354785b 100644 --- a/drivers/oprofile/oprofilefs.c +++ b/drivers/oprofile/oprofilefs.c @@ -110,8 +110,8 @@ static ssize_t ulong_write_file(struct file * file, char const __user * buf, siz static int default_open(struct inode * inode, struct file * filp) { - if (inode->u.generic_ip) - filp->private_data = inode->u.generic_ip; + if (inode->i_private) + filp->private_data = inode->i_private; return 0; } @@ -158,7 +158,7 @@ int oprofilefs_create_ulong(struct super_block * sb, struct dentry * root, if (!d) return -EFAULT; - d->d_inode->u.generic_ip = val; + d->d_inode->i_private = val; return 0; } @@ -171,7 +171,7 @@ int oprofilefs_create_ro_ulong(struct super_block * sb, struct dentry * root, if (!d) return -EFAULT; - d->d_inode->u.generic_ip = val; + d->d_inode->i_private = val; return 0; } @@ -197,7 +197,7 @@ int oprofilefs_create_ro_atomic(struct super_block * sb, struct dentry * root, if (!d) return -EFAULT; - d->d_inode->u.generic_ip = val; + d->d_inode->i_private = val; return 0; } diff --git a/drivers/pci/hotplug/cpqphp_sysfs.c b/drivers/pci/hotplug/cpqphp_sysfs.c index 8b3da007e859..5bab666cd67e 100644 --- a/drivers/pci/hotplug/cpqphp_sysfs.c +++ b/drivers/pci/hotplug/cpqphp_sysfs.c @@ -140,7 +140,7 @@ struct ctrl_dbg { static int open(struct inode *inode, struct file *file) { - struct controller *ctrl = inode->u.generic_ip; + struct controller *ctrl = inode->i_private; struct ctrl_dbg *dbg; int retval = -ENOMEM; diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c index 218621b9958e..32e03000420c 100644 --- a/drivers/usb/core/devio.c +++ b/drivers/usb/core/devio.c @@ -555,7 +555,7 @@ static int usbdev_open(struct inode *inode, struct file *file) if (imajor(inode) == USB_DEVICE_MAJOR) dev = usbdev_lookup_minor(iminor(inode)); if (!dev) - dev = inode->u.generic_ip; + dev = inode->i_private; if (!dev) { kfree(ps); goto out; diff --git a/drivers/usb/core/inode.c b/drivers/usb/core/inode.c index 3182c2224ba2..482f253085e5 100644 --- a/drivers/usb/core/inode.c +++ b/drivers/usb/core/inode.c @@ -402,8 +402,8 @@ static loff_t default_file_lseek (struct file *file, loff_t offset, int orig) static int default_open (struct inode *inode, struct file *file) { - if (inode->u.generic_ip) - file->private_data = inode->u.generic_ip; + if (inode->i_private) + file->private_data = inode->i_private; return 0; } @@ -509,7 +509,7 @@ static struct dentry *fs_create_file (const char *name, mode_t mode, } else { if (dentry->d_inode) { if (data) - dentry->d_inode->u.generic_ip = data; + dentry->d_inode->i_private = data; if (fops) dentry->d_inode->i_fop = fops; dentry->d_inode->i_uid = uid; diff --git a/drivers/usb/gadget/inode.c b/drivers/usb/gadget/inode.c index 3bdc5e3ba234..ffaa8c1afad8 100644 --- a/drivers/usb/gadget/inode.c +++ b/drivers/usb/gadget/inode.c @@ -844,7 +844,7 @@ fail1: static int ep_open (struct inode *inode, struct file *fd) { - struct ep_data *data = inode->u.generic_ip; + struct ep_data *data = inode->i_private; int value = -EBUSY; if (down_interruptible (&data->lock) != 0) @@ -1909,7 +1909,7 @@ fail: static int dev_open (struct inode *inode, struct file *fd) { - struct dev_data *dev = inode->u.generic_ip; + struct dev_data *dev = inode->i_private; int value = -EBUSY; if (dev->state == STATE_DEV_DISABLED) { @@ -1970,7 +1970,7 @@ gadgetfs_make_inode (struct super_block *sb, inode->i_blocks = 0; inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME; - inode->u.generic_ip = data; + inode->i_private = data; inode->i_fop = fops; } return inode; diff --git a/drivers/usb/host/isp116x-hcd.c b/drivers/usb/host/isp116x-hcd.c index 5147ed4a6662..8c6b38a0b5bb 100644 --- a/drivers/usb/host/isp116x-hcd.c +++ b/drivers/usb/host/isp116x-hcd.c @@ -1204,7 +1204,7 @@ static int isp116x_show_dbg(struct seq_file *s, void *unused) static int isp116x_open_seq(struct inode *inode, struct file *file) { - return single_open(file, isp116x_show_dbg, inode->u.generic_ip); + return single_open(file, isp116x_show_dbg, inode->i_private); } static struct file_operations isp116x_debug_fops = { diff --git a/drivers/usb/host/uhci-debug.c b/drivers/usb/host/uhci-debug.c index dc286a48cafd..d1372cb27f33 100644 --- a/drivers/usb/host/uhci-debug.c +++ b/drivers/usb/host/uhci-debug.c @@ -428,7 +428,7 @@ struct uhci_debug { static int uhci_debug_open(struct inode *inode, struct file *file) { - struct uhci_hcd *uhci = inode->u.generic_ip; + struct uhci_hcd *uhci = inode->i_private; struct uhci_debug *up; int ret = -ENOMEM; unsigned long flags; diff --git a/drivers/usb/mon/mon_stat.c b/drivers/usb/mon/mon_stat.c index 1fe01d994a79..86ad2b381c4b 100644 --- a/drivers/usb/mon/mon_stat.c +++ b/drivers/usb/mon/mon_stat.c @@ -28,7 +28,7 @@ static int mon_stat_open(struct inode *inode, struct file *file) if ((sp = kmalloc(sizeof(struct snap), GFP_KERNEL)) == NULL) return -ENOMEM; - mbus = inode->u.generic_ip; + mbus = inode->i_private; sp->slen = snprintf(sp->str, STAT_BUF_SIZE, "nreaders %d events %u text_lost %u\n", diff --git a/drivers/usb/mon/mon_text.c b/drivers/usb/mon/mon_text.c index f961a770cee2..2fd39b4fa166 100644 --- a/drivers/usb/mon/mon_text.c +++ b/drivers/usb/mon/mon_text.c @@ -238,7 +238,7 @@ static int mon_text_open(struct inode *inode, struct file *file) int rc; mutex_lock(&mon_lock); - mbus = inode->u.generic_ip; + mbus = inode->i_private; ubus = mbus->u_bus; rp = kzalloc(sizeof(struct mon_reader_text), GFP_KERNEL); @@ -401,7 +401,7 @@ static int mon_text_release(struct inode *inode, struct file *file) struct mon_event_text *ep; mutex_lock(&mon_lock); - mbus = inode->u.generic_ip; + mbus = inode->i_private; if (mbus->nreaders <= 0) { printk(KERN_ERR TAG ": consistency error on close\n"); diff --git a/fs/autofs/inode.c b/fs/autofs/inode.c index c81d6b8c2828..d39d2acd9b38 100644 --- a/fs/autofs/inode.c +++ b/fs/autofs/inode.c @@ -241,7 +241,7 @@ static void autofs_read_inode(struct inode *inode) inode->i_op = &autofs_symlink_inode_operations; sl = &sbi->symlink[n]; - inode->u.generic_ip = sl; + inode->i_private = sl; inode->i_mode = S_IFLNK | S_IRWXUGO; inode->i_mtime.tv_sec = inode->i_ctime.tv_sec = sl->mtime; inode->i_mtime.tv_nsec = inode->i_ctime.tv_nsec = 0; diff --git a/fs/autofs/symlink.c b/fs/autofs/symlink.c index 52e8772b066e..c74f2eb65775 100644 --- a/fs/autofs/symlink.c +++ b/fs/autofs/symlink.c @@ -15,7 +15,7 @@ /* Nothing to release.. */ static void *autofs_follow_link(struct dentry *dentry, struct nameidata *nd) { - char *s=((struct autofs_symlink *)dentry->d_inode->u.generic_ip)->data; + char *s=((struct autofs_symlink *)dentry->d_inode->i_private)->data; nd_set_link(nd, s); return NULL; } diff --git a/fs/binfmt_misc.c b/fs/binfmt_misc.c index 34ebbc191e46..6759b9839ce8 100644 --- a/fs/binfmt_misc.c +++ b/fs/binfmt_misc.c @@ -517,7 +517,7 @@ static struct inode *bm_get_inode(struct super_block *sb, int mode) static void bm_clear_inode(struct inode *inode) { - kfree(inode->u.generic_ip); + kfree(inode->i_private); } static void kill_node(Node *e) @@ -545,7 +545,7 @@ static void kill_node(Node *e) static ssize_t bm_entry_read(struct file * file, char __user * buf, size_t nbytes, loff_t *ppos) { - Node *e = file->f_dentry->d_inode->u.generic_ip; + Node *e = file->f_dentry->d_inode->i_private; loff_t pos = *ppos; ssize_t res; char *page; @@ -579,7 +579,7 @@ static ssize_t bm_entry_write(struct file *file, const char __user *buffer, size_t count, loff_t *ppos) { struct dentry *root; - Node *e = file->f_dentry->d_inode->u.generic_ip; + Node *e = file->f_dentry->d_inode->i_private; int res = parse_command(buffer, count); switch (res) { @@ -646,7 +646,7 @@ static ssize_t bm_register_write(struct file *file, const char __user *buffer, } e->dentry = dget(dentry); - inode->u.generic_ip = e; + inode->i_private = e; inode->i_fop = &bm_entry_operations; d_instantiate(dentry, inode); diff --git a/fs/debugfs/file.c b/fs/debugfs/file.c index e4b430552c88..bf3901ab1744 100644 --- a/fs/debugfs/file.c +++ b/fs/debugfs/file.c @@ -32,8 +32,8 @@ static ssize_t default_write_file(struct file *file, const char __user *buf, static int default_open(struct inode *inode, struct file *file) { - if (inode->u.generic_ip) - file->private_data = inode->u.generic_ip; + if (inode->i_private) + file->private_data = inode->i_private; return 0; } diff --git a/fs/debugfs/inode.c b/fs/debugfs/inode.c index 3ca268d2e5a2..717f4821ed02 100644 --- a/fs/debugfs/inode.c +++ b/fs/debugfs/inode.c @@ -168,7 +168,7 @@ static int debugfs_create_by_name(const char *name, mode_t mode, * directory dentry if set. If this paramater is NULL, then the * file will be created in the root of the debugfs filesystem. * @data: a pointer to something that the caller will want to get to later - * on. The inode.u.generic_ip pointer will point to this value on + * on. The inode.i_private pointer will point to this value on * the open() call. * @fops: a pointer to a struct file_operations that should be used for * this file. @@ -209,7 +209,7 @@ struct dentry *debugfs_create_file(const char *name, mode_t mode, if (dentry->d_inode) { if (data) - dentry->d_inode->u.generic_ip = data; + dentry->d_inode->i_private = data; if (fops) dentry->d_inode->i_fop = fops; } diff --git a/fs/devpts/inode.c b/fs/devpts/inode.c index f7aef5bb584a..5bf06a10dddf 100644 --- a/fs/devpts/inode.c +++ b/fs/devpts/inode.c @@ -177,7 +177,7 @@ int devpts_pty_new(struct tty_struct *tty) inode->i_gid = config.setgid ? config.gid : current->fsgid; inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME; init_special_inode(inode, S_IFCHR|config.mode, device); - inode->u.generic_ip = tty; + inode->i_private = tty; dentry = get_node(number); if (!IS_ERR(dentry) && !dentry->d_inode) @@ -196,7 +196,7 @@ struct tty_struct *devpts_get_tty(int number) tty = NULL; if (!IS_ERR(dentry)) { if (dentry->d_inode) - tty = dentry->d_inode->u.generic_ip; + tty = dentry->d_inode->i_private; dput(dentry); } diff --git a/fs/freevxfs/vxfs.h b/fs/freevxfs/vxfs.h index d35979a58743..c8a92652612a 100644 --- a/fs/freevxfs/vxfs.h +++ b/fs/freevxfs/vxfs.h @@ -252,7 +252,7 @@ enum { * Get filesystem private data from VFS inode. */ #define VXFS_INO(ip) \ - ((struct vxfs_inode_info *)(ip)->u.generic_ip) + ((struct vxfs_inode_info *)(ip)->i_private) /* * Get filesystem private data from VFS superblock. diff --git a/fs/freevxfs/vxfs_inode.c b/fs/freevxfs/vxfs_inode.c index ca6a39714771..32a82ed108e4 100644 --- a/fs/freevxfs/vxfs_inode.c +++ b/fs/freevxfs/vxfs_inode.c @@ -243,7 +243,7 @@ vxfs_iinit(struct inode *ip, struct vxfs_inode_info *vip) ip->i_blocks = vip->vii_blocks; ip->i_generation = vip->vii_gen; - ip->u.generic_ip = (void *)vip; + ip->i_private = vip; } @@ -338,5 +338,5 @@ vxfs_read_inode(struct inode *ip) void vxfs_clear_inode(struct inode *ip) { - kmem_cache_free(vxfs_inode_cachep, ip->u.generic_ip); + kmem_cache_free(vxfs_inode_cachep, ip->i_private); } diff --git a/fs/fuse/control.c b/fs/fuse/control.c index 46fe60b2da23..79ec1f23d4d2 100644 --- a/fs/fuse/control.c +++ b/fs/fuse/control.c @@ -23,7 +23,7 @@ static struct fuse_conn *fuse_ctl_file_conn_get(struct file *file) { struct fuse_conn *fc; mutex_lock(&fuse_mutex); - fc = file->f_dentry->d_inode->u.generic_ip; + fc = file->f_dentry->d_inode->i_private; if (fc) fc = fuse_conn_get(fc); mutex_unlock(&fuse_mutex); @@ -98,7 +98,7 @@ static struct dentry *fuse_ctl_add_dentry(struct dentry *parent, inode->i_op = iop; inode->i_fop = fop; inode->i_nlink = nlink; - inode->u.generic_ip = fc; + inode->i_private = fc; d_add(dentry, inode); return dentry; } @@ -150,7 +150,7 @@ void fuse_ctl_remove_conn(struct fuse_conn *fc) for (i = fc->ctl_ndents - 1; i >= 0; i--) { struct dentry *dentry = fc->ctl_dentry[i]; - dentry->d_inode->u.generic_ip = NULL; + dentry->d_inode->i_private = NULL; d_drop(dentry); dput(dentry); } diff --git a/fs/inode.c b/fs/inode.c index 0bf9f0444a96..77e254792025 100644 --- a/fs/inode.c +++ b/fs/inode.c @@ -163,7 +163,7 @@ static struct inode *alloc_inode(struct super_block *sb) bdi = sb->s_bdev->bd_inode->i_mapping->backing_dev_info; mapping->backing_dev_info = bdi; } - memset(&inode->u, 0, sizeof(inode->u)); + inode->i_private = 0; inode->i_mapping = mapping; } return inode; diff --git a/fs/jffs/inode-v23.c b/fs/jffs/inode-v23.c index b59553d28d13..7358ef87f16b 100644 --- a/fs/jffs/inode-v23.c +++ b/fs/jffs/inode-v23.c @@ -369,7 +369,7 @@ jffs_new_inode(const struct inode * dir, struct jffs_raw_inode *raw_inode, f = jffs_find_file(c, raw_inode->ino); - inode->u.generic_ip = (void *)f; + inode->i_private = (void *)f; insert_inode_hash(inode); return inode; @@ -442,7 +442,7 @@ jffs_rename(struct inode *old_dir, struct dentry *old_dentry, }); result = -ENOTDIR; - if (!(old_dir_f = (struct jffs_file *)old_dir->u.generic_ip)) { + if (!(old_dir_f = old_dir->i_private)) { D(printk("jffs_rename(): Old dir invalid.\n")); goto jffs_rename_end; } @@ -456,7 +456,7 @@ jffs_rename(struct inode *old_dir, struct dentry *old_dentry, /* Find the new directory. */ result = -ENOTDIR; - if (!(new_dir_f = (struct jffs_file *)new_dir->u.generic_ip)) { + if (!(new_dir_f = new_dir->i_private)) { D(printk("jffs_rename(): New dir invalid.\n")); goto jffs_rename_end; } @@ -593,7 +593,7 @@ jffs_readdir(struct file *filp, void *dirent, filldir_t filldir) } else { ddino = ((struct jffs_file *) - inode->u.generic_ip)->pino; + inode->i_private)->pino; } D3(printk("jffs_readdir(): \"..\" %u\n", ddino)); if (filldir(dirent, "..", 2, filp->f_pos, ddino, DT_DIR) < 0) { @@ -604,7 +604,7 @@ jffs_readdir(struct file *filp, void *dirent, filldir_t filldir) } filp->f_pos++; } - f = ((struct jffs_file *)inode->u.generic_ip)->children; + f = ((struct jffs_file *)inode->i_private)->children; j = 2; while(f && (f->deleted || j++ < filp->f_pos )) { @@ -668,7 +668,7 @@ jffs_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *nd) } r = -EACCES; - if (!(d = (struct jffs_file *)dir->u.generic_ip)) { + if (!(d = (struct jffs_file *)dir->i_private)) { D(printk("jffs_lookup(): No such inode! (%lu)\n", dir->i_ino)); goto jffs_lookup_end; @@ -739,7 +739,7 @@ jffs_do_readpage_nolock(struct file *file, struct page *page) unsigned long read_len; int result; struct inode *inode = (struct inode*)page->mapping->host; - struct jffs_file *f = (struct jffs_file *)inode->u.generic_ip; + struct jffs_file *f = (struct jffs_file *)inode->i_private; struct jffs_control *c = (struct jffs_control *)inode->i_sb->s_fs_info; int r; loff_t offset; @@ -828,7 +828,7 @@ jffs_mkdir(struct inode *dir, struct dentry *dentry, int mode) }); lock_kernel(); - dir_f = (struct jffs_file *)dir->u.generic_ip; + dir_f = dir->i_private; ASSERT(if (!dir_f) { printk(KERN_ERR "jffs_mkdir(): No reference to a " @@ -972,7 +972,7 @@ jffs_remove(struct inode *dir, struct dentry *dentry, int type) kfree(_name); }); - dir_f = (struct jffs_file *) dir->u.generic_ip; + dir_f = dir->i_private; c = dir_f->c; result = -ENOENT; @@ -1082,7 +1082,7 @@ jffs_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t rdev) if (!old_valid_dev(rdev)) return -EINVAL; lock_kernel(); - dir_f = (struct jffs_file *)dir->u.generic_ip; + dir_f = dir->i_private; c = dir_f->c; D3(printk (KERN_NOTICE "mknod(): down biglock\n")); @@ -1186,7 +1186,7 @@ jffs_symlink(struct inode *dir, struct dentry *dentry, const char *symname) kfree(_symname); }); - dir_f = (struct jffs_file *)dir->u.generic_ip; + dir_f = dir->i_private; ASSERT(if (!dir_f) { printk(KERN_ERR "jffs_symlink(): No reference to a " "jffs_file struct in inode.\n"); @@ -1289,7 +1289,7 @@ jffs_create(struct inode *dir, struct dentry *dentry, int mode, kfree(s); }); - dir_f = (struct jffs_file *)dir->u.generic_ip; + dir_f = dir->i_private; ASSERT(if (!dir_f) { printk(KERN_ERR "jffs_create(): No reference to a " "jffs_file struct in inode.\n"); @@ -1403,9 +1403,9 @@ jffs_file_write(struct file *filp, const char *buf, size_t count, goto out_isem; } - if (!(f = (struct jffs_file *)inode->u.generic_ip)) { - D(printk("jffs_file_write(): inode->u.generic_ip = 0x%p\n", - inode->u.generic_ip)); + if (!(f = inode->i_private)) { + D(printk("jffs_file_write(): inode->i_private = 0x%p\n", + inode->i_private)); goto out_isem; } @@ -1693,7 +1693,7 @@ jffs_read_inode(struct inode *inode) mutex_unlock(&c->fmc->biglock); return; } - inode->u.generic_ip = (void *)f; + inode->i_private = f; inode->i_mode = f->mode; inode->i_nlink = f->nlink; inode->i_uid = f->uid; @@ -1748,7 +1748,7 @@ jffs_delete_inode(struct inode *inode) lock_kernel(); inode->i_size = 0; inode->i_blocks = 0; - inode->u.generic_ip = NULL; + inode->i_private = NULL; clear_inode(inode); if (inode->i_nlink == 0) { c = (struct jffs_control *) inode->i_sb->s_fs_info; diff --git a/fs/libfs.c b/fs/libfs.c index ac02ea602c3d..2751793beeaa 100644 --- a/fs/libfs.c +++ b/fs/libfs.c @@ -547,7 +547,7 @@ int simple_attr_open(struct inode *inode, struct file *file, attr->get = get; attr->set = set; - attr->data = inode->u.generic_ip; + attr->data = inode->i_private; attr->fmt = fmt; mutex_init(&attr->mutex); diff --git a/fs/ocfs2/dlmglue.c b/fs/ocfs2/dlmglue.c index de887063dcfc..8801e41afe80 100644 --- a/fs/ocfs2/dlmglue.c +++ b/fs/ocfs2/dlmglue.c @@ -2052,7 +2052,7 @@ static int ocfs2_dlm_debug_open(struct inode *inode, struct file *file) mlog_errno(ret); goto out; } - osb = (struct ocfs2_super *) inode->u.generic_ip; + osb = inode->i_private; ocfs2_get_dlm_debug(osb->osb_dlm_debug); priv->p_dlm_debug = osb->osb_dlm_debug; INIT_LIST_HEAD(&priv->p_iter_res.l_debug_list); diff --git a/include/linux/fs.h b/include/linux/fs.h index 1d3e601ece73..4f77ec9c3353 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -554,9 +554,7 @@ struct inode { atomic_t i_writecount; void *i_security; - union { - void *generic_ip; - } u; + void *i_private; /* fs or device private pointer */ #ifdef __NEED_I_SIZE_ORDERED seqcount_t i_size_seqcount; #endif diff --git a/kernel/relay.c b/kernel/relay.c index 33345e73485c..85786ff2a4f9 100644 --- a/kernel/relay.c +++ b/kernel/relay.c @@ -669,7 +669,7 @@ EXPORT_SYMBOL_GPL(relay_flush); */ static int relay_file_open(struct inode *inode, struct file *filp) { - struct rchan_buf *buf = inode->u.generic_ip; + struct rchan_buf *buf = inode->i_private; kref_get(&buf->kref); filp->private_data = buf; diff --git a/security/inode.c b/security/inode.c index 47eb63480dac..176aacea8ca4 100644 --- a/security/inode.c +++ b/security/inode.c @@ -44,8 +44,8 @@ static ssize_t default_write_file(struct file *file, const char __user *buf, static int default_open(struct inode *inode, struct file *file) { - if (inode->u.generic_ip) - file->private_data = inode->u.generic_ip; + if (inode->i_private) + file->private_data = inode->i_private; return 0; } @@ -194,7 +194,7 @@ static int create_by_name(const char *name, mode_t mode, * directory dentry if set. If this paramater is NULL, then the * file will be created in the root of the securityfs filesystem. * @data: a pointer to something that the caller will want to get to later - * on. The inode.u.generic_ip pointer will point to this value on + * on. The inode.i_private pointer will point to this value on * the open() call. * @fops: a pointer to a struct file_operations that should be used for * this file. @@ -240,7 +240,7 @@ struct dentry *securityfs_create_file(const char *name, mode_t mode, if (fops) dentry->d_inode->i_fop = fops; if (data) - dentry->d_inode->u.generic_ip = data; + dentry->d_inode->i_private = data; } exit: return dentry; -- cgit v1.2.3 From 4c1541680f8d189d21dd07b053bc12996574646e Mon Sep 17 00:00:00 2001 From: Theodore Ts'o Date: Wed, 27 Sep 2006 01:50:47 -0700 Subject: [PATCH] inode-diet: Move i_pipe into a union Move the i_pipe pointer into a union that will be shared with i_bdev and i_cdev. Signed-off-by: "Theodore Ts'o" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/fs.h | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/linux/fs.h b/include/linux/fs.h index 4f77ec9c3353..ca695fc8d69c 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -528,9 +528,10 @@ struct inode { #ifdef CONFIG_QUOTA struct dquot *i_dquot[MAXQUOTAS]; #endif - /* These three should probably be a union */ struct list_head i_devices; - struct pipe_inode_info *i_pipe; + union { + struct pipe_inode_info *i_pipe; + }; struct block_device *i_bdev; struct cdev *i_cdev; int i_cindex; -- cgit v1.2.3 From eaf796e7ef6014f208c409b2b14fddcfaafe7e3a Mon Sep 17 00:00:00 2001 From: Theodore Ts'o Date: Wed, 27 Sep 2006 01:50:48 -0700 Subject: [PATCH] inode-diet: Move i_bdev into a union Move the i_bdev pointer in struct inode into a union. Signed-off-by: "Theodore Ts'o" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/inode.c | 2 +- include/linux/fs.h | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/fs/inode.c b/fs/inode.c index 77e254792025..41b462232f7f 100644 --- a/fs/inode.c +++ b/fs/inode.c @@ -254,7 +254,7 @@ void clear_inode(struct inode *inode) DQUOT_DROP(inode); if (inode->i_sb && inode->i_sb->s_op->clear_inode) inode->i_sb->s_op->clear_inode(inode); - if (inode->i_bdev) + if (S_ISBLK(inode->i_mode) && inode->i_bdev) bd_forget(inode); if (inode->i_cdev) cd_forget(inode); diff --git a/include/linux/fs.h b/include/linux/fs.h index ca695fc8d69c..98ff684a5b1c 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -531,8 +531,8 @@ struct inode { struct list_head i_devices; union { struct pipe_inode_info *i_pipe; + struct block_device *i_bdev; }; - struct block_device *i_bdev; struct cdev *i_cdev; int i_cindex; -- cgit v1.2.3 From 577c4eb09d1034d0739e3135fd2cff50588024be Mon Sep 17 00:00:00 2001 From: Theodore Ts'o Date: Wed, 27 Sep 2006 01:50:49 -0700 Subject: [PATCH] inode-diet: Move i_cdev into a union Move the i_cdev pointer in struct inode into a union. Signed-off-by: "Theodore Ts'o" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/file_table.c | 2 +- fs/inode.c | 2 +- include/linux/fs.h | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/fs/file_table.c b/fs/file_table.c index 0131ba06e1ee..bc35a40417d7 100644 --- a/fs/file_table.c +++ b/fs/file_table.c @@ -169,7 +169,7 @@ void fastcall __fput(struct file *file) if (file->f_op && file->f_op->release) file->f_op->release(inode, file); security_file_free(file); - if (unlikely(inode->i_cdev != NULL)) + if (unlikely(S_ISCHR(inode->i_mode) && inode->i_cdev != NULL)) cdev_put(inode->i_cdev); fops_put(file->f_op); if (file->f_mode & FMODE_WRITE) diff --git a/fs/inode.c b/fs/inode.c index 41b462232f7f..f5c04dd9ae8a 100644 --- a/fs/inode.c +++ b/fs/inode.c @@ -256,7 +256,7 @@ void clear_inode(struct inode *inode) inode->i_sb->s_op->clear_inode(inode); if (S_ISBLK(inode->i_mode) && inode->i_bdev) bd_forget(inode); - if (inode->i_cdev) + if (S_ISCHR(inode->i_mode) && inode->i_cdev) cd_forget(inode); inode->i_state = I_CLEAR; } diff --git a/include/linux/fs.h b/include/linux/fs.h index 98ff684a5b1c..192e69bb55b5 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -532,8 +532,8 @@ struct inode { union { struct pipe_inode_info *i_pipe; struct block_device *i_bdev; + struct cdev *i_cdev; }; - struct cdev *i_cdev; int i_cindex; __u32 i_generation; -- cgit v1.2.3 From ba52de123d454b57369f291348266d86f4b35070 Mon Sep 17 00:00:00 2001 From: Theodore Ts'o Date: Wed, 27 Sep 2006 01:50:49 -0700 Subject: [PATCH] inode-diet: Eliminate i_blksize from the inode structure This eliminates the i_blksize field from struct inode. Filesystems that want to provide a per-inode st_blksize can do so by providing their own getattr routine instead of using the generic_fillattr() function. Note that some filesystems were providing pretty much random (and incorrect) values for i_blksize. [bunk@stusta.de: cleanup] [akpm@osdl.org: generic_fillattr() fix] Signed-off-by: "Theodore Ts'o" Signed-off-by: Adrian Bunk Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/powerpc/platforms/cell/spufs/inode.c | 1 - arch/s390/hypfs/inode.c | 1 - drivers/block/loop.c | 7 +++++-- drivers/infiniband/hw/ipath/ipath_fs.c | 1 - drivers/isdn/capi/capifs.c | 2 -- drivers/misc/ibmasm/ibmasmfs.c | 1 - drivers/oprofile/oprofilefs.c | 1 - drivers/usb/core/inode.c | 1 - drivers/usb/gadget/inode.c | 1 - fs/9p/vfs_inode.c | 4 +--- fs/adfs/inode.c | 1 - fs/afs/inode.c | 1 - fs/autofs/inode.c | 1 - fs/autofs4/inode.c | 1 - fs/befs/linuxvfs.c | 1 - fs/bfs/dir.c | 2 +- fs/bfs/inode.c | 1 - fs/binfmt_misc.c | 1 - fs/cifs/cifsfs.c | 1 - fs/cifs/readdir.c | 5 ++--- fs/coda/coda_linux.c | 2 -- fs/configfs/inode.c | 1 - fs/cramfs/inode.c | 1 - fs/debugfs/inode.c | 1 - fs/devpts/inode.c | 2 -- fs/eventpoll.c | 1 - fs/ext2/ialloc.c | 1 - fs/ext2/inode.c | 1 - fs/ext3/ialloc.c | 1 - fs/ext3/inode.c | 3 --- fs/fat/inode.c | 3 --- fs/freevxfs/vxfs_inode.c | 1 - fs/fuse/inode.c | 1 - fs/hfs/inode.c | 2 -- fs/hfsplus/inode.c | 2 -- fs/hostfs/hostfs_kern.c | 1 - fs/hpfs/inode.c | 1 - fs/hppfs/hppfs_kern.c | 1 - fs/hugetlbfs/inode.c | 1 - fs/isofs/inode.c | 3 +-- fs/jffs/inode-v23.c | 2 -- fs/jffs2/fs.c | 2 -- fs/jfs/jfs_extent.c | 2 +- fs/jfs/jfs_imap.c | 1 - fs/jfs/jfs_inode.c | 1 - fs/jfs/jfs_metapage.c | 2 +- fs/libfs.c | 2 -- fs/minix/bitmap.c | 2 +- fs/minix/inode.c | 4 ++-- fs/ncpfs/inode.c | 1 - fs/nfs/inode.c | 4 ---- fs/ntfs/inode.c | 4 ---- fs/ntfs/mft.c | 5 ----- fs/ocfs2/dlm/dlmfs.c | 2 -- fs/ocfs2/inode.c | 4 ---- fs/pipe.c | 1 - fs/qnx4/inode.c | 1 - fs/ramfs/inode.c | 1 - fs/reiserfs/inode.c | 4 ---- fs/smbfs/inode.c | 2 -- fs/smbfs/proc.c | 1 - fs/stat.c | 3 ++- fs/sysfs/inode.c | 1 - fs/sysv/ialloc.c | 2 +- fs/sysv/inode.c | 2 +- fs/udf/ialloc.c | 1 - fs/udf/inode.c | 2 -- fs/ufs/ialloc.c | 1 - fs/ufs/inode.c | 1 - fs/xfs/linux-2.6/xfs_super.c | 1 - fs/xfs/linux-2.6/xfs_vnode.c | 1 - include/linux/fs.h | 1 - include/linux/nfsd/nfsfh.h | 10 ++-------- include/linux/smb.h | 1 - ipc/mqueue.c | 1 - kernel/cpuset.c | 1 - mm/shmem.c | 1 - net/sunrpc/rpc_pipe.c | 1 - security/inode.c | 1 - security/selinux/selinuxfs.c | 1 - 80 files changed, 21 insertions(+), 125 deletions(-) (limited to 'include') diff --git a/arch/powerpc/platforms/cell/spufs/inode.c b/arch/powerpc/platforms/cell/spufs/inode.c index b837f12a84ae..3950ddccb2c8 100644 --- a/arch/powerpc/platforms/cell/spufs/inode.c +++ b/arch/powerpc/platforms/cell/spufs/inode.c @@ -82,7 +82,6 @@ spufs_new_inode(struct super_block *sb, int mode) inode->i_mode = mode; inode->i_uid = current->fsuid; inode->i_gid = current->fsgid; - inode->i_blksize = PAGE_CACHE_SIZE; inode->i_blocks = 0; inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME; out: diff --git a/arch/s390/hypfs/inode.c b/arch/s390/hypfs/inode.c index 8735024d235b..813fc21358f9 100644 --- a/arch/s390/hypfs/inode.c +++ b/arch/s390/hypfs/inode.c @@ -91,7 +91,6 @@ static struct inode *hypfs_make_inode(struct super_block *sb, int mode) ret->i_mode = mode; ret->i_uid = hypfs_info->uid; ret->i_gid = hypfs_info->gid; - ret->i_blksize = PAGE_CACHE_SIZE; ret->i_blocks = 0; ret->i_atime = ret->i_mtime = ret->i_ctime = CURRENT_TIME; if (mode & S_IFDIR) diff --git a/drivers/block/loop.c b/drivers/block/loop.c index 7b3b94ddddcc..c774121684d7 100644 --- a/drivers/block/loop.c +++ b/drivers/block/loop.c @@ -662,7 +662,8 @@ static void do_loop_switch(struct loop_device *lo, struct switch_request *p) mapping_set_gfp_mask(old_file->f_mapping, lo->old_gfp_mask); lo->lo_backing_file = file; - lo->lo_blocksize = mapping->host->i_blksize; + lo->lo_blocksize = S_ISBLK(mapping->host->i_mode) ? + mapping->host->i_bdev->bd_block_size : PAGE_SIZE; lo->old_gfp_mask = mapping_gfp_mask(mapping); mapping_set_gfp_mask(mapping, lo->old_gfp_mask & ~(__GFP_IO|__GFP_FS)); complete(&p->wait); @@ -794,7 +795,9 @@ static int loop_set_fd(struct loop_device *lo, struct file *lo_file, if (!(lo_flags & LO_FLAGS_USE_AOPS) && !file->f_op->write) lo_flags |= LO_FLAGS_READ_ONLY; - lo_blocksize = inode->i_blksize; + lo_blocksize = S_ISBLK(inode->i_mode) ? + inode->i_bdev->bd_block_size : PAGE_SIZE; + error = 0; } else { goto out_putf; diff --git a/drivers/infiniband/hw/ipath/ipath_fs.c b/drivers/infiniband/hw/ipath/ipath_fs.c index 055cdd089b28..c8a8af0fe471 100644 --- a/drivers/infiniband/hw/ipath/ipath_fs.c +++ b/drivers/infiniband/hw/ipath/ipath_fs.c @@ -61,7 +61,6 @@ static int ipathfs_mknod(struct inode *dir, struct dentry *dentry, inode->i_mode = mode; inode->i_uid = 0; inode->i_gid = 0; - inode->i_blksize = PAGE_CACHE_SIZE; inode->i_blocks = 0; inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME; inode->i_private = data; diff --git a/drivers/isdn/capi/capifs.c b/drivers/isdn/capi/capifs.c index 9ea6bd0ddc35..2dd1b57b0ba4 100644 --- a/drivers/isdn/capi/capifs.c +++ b/drivers/isdn/capi/capifs.c @@ -104,7 +104,6 @@ capifs_fill_super(struct super_block *s, void *data, int silent) inode->i_ino = 1; inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME; inode->i_blocks = 0; - inode->i_blksize = 1024; inode->i_uid = inode->i_gid = 0; inode->i_mode = S_IFDIR | S_IRUGO | S_IXUGO | S_IWUSR; inode->i_op = &simple_dir_inode_operations; @@ -149,7 +148,6 @@ void capifs_new_ncci(unsigned int number, dev_t device) if (!inode) return; inode->i_ino = number+2; - inode->i_blksize = 1024; inode->i_uid = config.setuid ? config.uid : current->fsuid; inode->i_gid = config.setgid ? config.gid : current->fsgid; inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME; diff --git a/drivers/misc/ibmasm/ibmasmfs.c b/drivers/misc/ibmasm/ibmasmfs.c index 0e909b617226..b99dc507de2e 100644 --- a/drivers/misc/ibmasm/ibmasmfs.c +++ b/drivers/misc/ibmasm/ibmasmfs.c @@ -147,7 +147,6 @@ static struct inode *ibmasmfs_make_inode(struct super_block *sb, int mode) if (ret) { ret->i_mode = mode; ret->i_uid = ret->i_gid = 0; - ret->i_blksize = PAGE_CACHE_SIZE; ret->i_blocks = 0; ret->i_atime = ret->i_mtime = ret->i_ctime = CURRENT_TIME; } diff --git a/drivers/oprofile/oprofilefs.c b/drivers/oprofile/oprofilefs.c index deb37354785b..5756401fb15b 100644 --- a/drivers/oprofile/oprofilefs.c +++ b/drivers/oprofile/oprofilefs.c @@ -31,7 +31,6 @@ static struct inode * oprofilefs_get_inode(struct super_block * sb, int mode) inode->i_mode = mode; inode->i_uid = 0; inode->i_gid = 0; - inode->i_blksize = PAGE_CACHE_SIZE; inode->i_blocks = 0; inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME; } diff --git a/drivers/usb/core/inode.c b/drivers/usb/core/inode.c index 482f253085e5..58b4b1012120 100644 --- a/drivers/usb/core/inode.c +++ b/drivers/usb/core/inode.c @@ -249,7 +249,6 @@ static struct inode *usbfs_get_inode (struct super_block *sb, int mode, dev_t de inode->i_mode = mode; inode->i_uid = current->fsuid; inode->i_gid = current->fsgid; - inode->i_blksize = PAGE_CACHE_SIZE; inode->i_blocks = 0; inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME; switch (mode & S_IFMT) { diff --git a/drivers/usb/gadget/inode.c b/drivers/usb/gadget/inode.c index ffaa8c1afad8..2a7162d89799 100644 --- a/drivers/usb/gadget/inode.c +++ b/drivers/usb/gadget/inode.c @@ -1966,7 +1966,6 @@ gadgetfs_make_inode (struct super_block *sb, inode->i_mode = mode; inode->i_uid = default_uid; inode->i_gid = default_gid; - inode->i_blksize = PAGE_CACHE_SIZE; inode->i_blocks = 0; inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME; diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c index eae50c9d6dc4..7a7ec2d1d2f4 100644 --- a/fs/9p/vfs_inode.c +++ b/fs/9p/vfs_inode.c @@ -204,7 +204,6 @@ struct inode *v9fs_get_inode(struct super_block *sb, int mode) inode->i_mode = mode; inode->i_uid = current->fsuid; inode->i_gid = current->fsgid; - inode->i_blksize = sb->s_blocksize; inode->i_blocks = 0; inode->i_rdev = 0; inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME; @@ -950,9 +949,8 @@ v9fs_stat2inode(struct v9fs_stat *stat, struct inode *inode, inode->i_size = stat->length; - inode->i_blksize = sb->s_blocksize; inode->i_blocks = - (inode->i_size + inode->i_blksize - 1) >> sb->s_blocksize_bits; + (inode->i_size + sb->s_blocksize - 1) >> sb->s_blocksize_bits; } /** diff --git a/fs/adfs/inode.c b/fs/adfs/inode.c index 534f3eecc985..7e7a04be1278 100644 --- a/fs/adfs/inode.c +++ b/fs/adfs/inode.c @@ -269,7 +269,6 @@ adfs_iget(struct super_block *sb, struct object_info *obj) inode->i_ino = obj->file_id; inode->i_size = obj->size; inode->i_nlink = 2; - inode->i_blksize = PAGE_SIZE; inode->i_blocks = (inode->i_size + sb->s_blocksize - 1) >> sb->s_blocksize_bits; diff --git a/fs/afs/inode.c b/fs/afs/inode.c index 4ebb30a50ed5..6f37754906c2 100644 --- a/fs/afs/inode.c +++ b/fs/afs/inode.c @@ -72,7 +72,6 @@ static int afs_inode_map_status(struct afs_vnode *vnode) inode->i_ctime.tv_sec = vnode->status.mtime_server; inode->i_ctime.tv_nsec = 0; inode->i_atime = inode->i_mtime = inode->i_ctime; - inode->i_blksize = PAGE_CACHE_SIZE; inode->i_blocks = 0; inode->i_version = vnode->fid.unique; inode->i_mapping->a_ops = &afs_fs_aops; diff --git a/fs/autofs/inode.c b/fs/autofs/inode.c index d39d2acd9b38..2c9759baad61 100644 --- a/fs/autofs/inode.c +++ b/fs/autofs/inode.c @@ -216,7 +216,6 @@ static void autofs_read_inode(struct inode *inode) inode->i_nlink = 2; inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME; inode->i_blocks = 0; - inode->i_blksize = 1024; if ( ino == AUTOFS_ROOT_INO ) { inode->i_mode = S_IFDIR | S_IRUGO | S_IXUGO | S_IWUSR; diff --git a/fs/autofs4/inode.c b/fs/autofs4/inode.c index 11a6a9ae51b7..800ce876caec 100644 --- a/fs/autofs4/inode.c +++ b/fs/autofs4/inode.c @@ -447,7 +447,6 @@ struct inode *autofs4_get_inode(struct super_block *sb, inode->i_uid = 0; inode->i_gid = 0; } - inode->i_blksize = PAGE_CACHE_SIZE; inode->i_blocks = 0; inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME; diff --git a/fs/befs/linuxvfs.c b/fs/befs/linuxvfs.c index f6676fbe9484..57020c7a7e65 100644 --- a/fs/befs/linuxvfs.c +++ b/fs/befs/linuxvfs.c @@ -365,7 +365,6 @@ befs_read_inode(struct inode *inode) inode->i_mtime.tv_nsec = 0; /* lower 16 bits are not a time */ inode->i_ctime = inode->i_mtime; inode->i_atime = inode->i_mtime; - inode->i_blksize = befs_sb->block_size; befs_ino->i_inode_num = fsrun_to_cpu(sb, raw_inode->inode_num); befs_ino->i_parent = fsrun_to_cpu(sb, raw_inode->parent); diff --git a/fs/bfs/dir.c b/fs/bfs/dir.c index 26fad9621738..dcf04cb13283 100644 --- a/fs/bfs/dir.c +++ b/fs/bfs/dir.c @@ -102,7 +102,7 @@ static int bfs_create(struct inode * dir, struct dentry * dentry, int mode, inode->i_uid = current->fsuid; inode->i_gid = (dir->i_mode & S_ISGID) ? dir->i_gid : current->fsgid; inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME_SEC; - inode->i_blocks = inode->i_blksize = 0; + inode->i_blocks = 0; inode->i_op = &bfs_file_inops; inode->i_fop = &bfs_file_operations; inode->i_mapping->a_ops = &bfs_aops; diff --git a/fs/bfs/inode.c b/fs/bfs/inode.c index 8fc2e8e49dbe..ed27ffb3459e 100644 --- a/fs/bfs/inode.c +++ b/fs/bfs/inode.c @@ -76,7 +76,6 @@ static void bfs_read_inode(struct inode * inode) inode->i_size = BFS_FILESIZE(di); inode->i_blocks = BFS_FILEBLOCKS(di); if (inode->i_size || inode->i_blocks) dprintf("Registered inode with %lld size, %ld blocks\n", inode->i_size, inode->i_blocks); - inode->i_blksize = PAGE_SIZE; inode->i_atime.tv_sec = le32_to_cpu(di->i_atime); inode->i_mtime.tv_sec = le32_to_cpu(di->i_mtime); inode->i_ctime.tv_sec = le32_to_cpu(di->i_ctime); diff --git a/fs/binfmt_misc.c b/fs/binfmt_misc.c index 6759b9839ce8..66ba137f8661 100644 --- a/fs/binfmt_misc.c +++ b/fs/binfmt_misc.c @@ -507,7 +507,6 @@ static struct inode *bm_get_inode(struct super_block *sb, int mode) inode->i_mode = mode; inode->i_uid = 0; inode->i_gid = 0; - inode->i_blksize = PAGE_CACHE_SIZE; inode->i_blocks = 0; inode->i_atime = inode->i_mtime = inode->i_ctime = current_fs_time(inode->i_sb); diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c index 4197a5043f13..22bcf4d7e7ae 100644 --- a/fs/cifs/cifsfs.c +++ b/fs/cifs/cifsfs.c @@ -253,7 +253,6 @@ cifs_alloc_inode(struct super_block *sb) file data or metadata */ cifs_inode->clientCanCacheRead = FALSE; cifs_inode->clientCanCacheAll = FALSE; - cifs_inode->vfs_inode.i_blksize = CIFS_MAX_MSGSIZE; cifs_inode->vfs_inode.i_blkbits = 14; /* 2**14 = CIFS_MAX_MSGSIZE */ cifs_inode->vfs_inode.i_flags = S_NOATIME | S_NOCMTIME; INIT_LIST_HEAD(&cifs_inode->openFileList); diff --git a/fs/cifs/readdir.c b/fs/cifs/readdir.c index 9aeb58a7d369..b27b34537bf2 100644 --- a/fs/cifs/readdir.c +++ b/fs/cifs/readdir.c @@ -216,10 +216,9 @@ static void fill_in_inode(struct inode *tmp_inode, int new_buf_type, if (allocation_size < end_of_file) cFYI(1, ("May be sparse file, allocation less than file size")); - cFYI(1, ("File Size %ld and blocks %llu and blocksize %ld", + cFYI(1, ("File Size %ld and blocks %llu", (unsigned long)tmp_inode->i_size, - (unsigned long long)tmp_inode->i_blocks, - tmp_inode->i_blksize)); + (unsigned long long)tmp_inode->i_blocks)); if (S_ISREG(tmp_inode->i_mode)) { cFYI(1, ("File inode")); tmp_inode->i_op = &cifs_file_inode_ops; diff --git a/fs/coda/coda_linux.c b/fs/coda/coda_linux.c index 5597080cb811..95a54253c047 100644 --- a/fs/coda/coda_linux.c +++ b/fs/coda/coda_linux.c @@ -110,8 +110,6 @@ void coda_vattr_to_iattr(struct inode *inode, struct coda_vattr *attr) inode->i_nlink = attr->va_nlink; if (attr->va_size != -1) inode->i_size = attr->va_size; - if (attr->va_blocksize != -1) - inode->i_blksize = attr->va_blocksize; if (attr->va_size != -1) inode->i_blocks = (attr->va_size + 511) >> 9; if (attr->va_atime.tv_sec != -1) diff --git a/fs/configfs/inode.c b/fs/configfs/inode.c index 5047e6a7581e..fb18917954a9 100644 --- a/fs/configfs/inode.c +++ b/fs/configfs/inode.c @@ -135,7 +135,6 @@ struct inode * configfs_new_inode(mode_t mode, struct configfs_dirent * sd) { struct inode * inode = new_inode(configfs_sb); if (inode) { - inode->i_blksize = PAGE_CACHE_SIZE; inode->i_blocks = 0; inode->i_mapping->a_ops = &configfs_aops; inode->i_mapping->backing_dev_info = &configfs_backing_dev_info; diff --git a/fs/cramfs/inode.c b/fs/cramfs/inode.c index d09b6777c41a..ad96b6990715 100644 --- a/fs/cramfs/inode.c +++ b/fs/cramfs/inode.c @@ -73,7 +73,6 @@ static int cramfs_iget5_set(struct inode *inode, void *opaque) inode->i_uid = cramfs_inode->uid; inode->i_size = cramfs_inode->size; inode->i_blocks = (cramfs_inode->size - 1) / 512 + 1; - inode->i_blksize = PAGE_CACHE_SIZE; inode->i_gid = cramfs_inode->gid; /* Struct copy intentional */ inode->i_mtime = inode->i_atime = inode->i_ctime = zerotime; diff --git a/fs/debugfs/inode.c b/fs/debugfs/inode.c index 717f4821ed02..269e649e6dc6 100644 --- a/fs/debugfs/inode.c +++ b/fs/debugfs/inode.c @@ -40,7 +40,6 @@ static struct inode *debugfs_get_inode(struct super_block *sb, int mode, dev_t d inode->i_mode = mode; inode->i_uid = 0; inode->i_gid = 0; - inode->i_blksize = PAGE_CACHE_SIZE; inode->i_blocks = 0; inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME; switch (mode & S_IFMT) { diff --git a/fs/devpts/inode.c b/fs/devpts/inode.c index 5bf06a10dddf..5f7b5a6025bf 100644 --- a/fs/devpts/inode.c +++ b/fs/devpts/inode.c @@ -113,7 +113,6 @@ devpts_fill_super(struct super_block *s, void *data, int silent) inode->i_ino = 1; inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME; inode->i_blocks = 0; - inode->i_blksize = 1024; inode->i_uid = inode->i_gid = 0; inode->i_mode = S_IFDIR | S_IRUGO | S_IXUGO | S_IWUSR; inode->i_op = &simple_dir_inode_operations; @@ -172,7 +171,6 @@ int devpts_pty_new(struct tty_struct *tty) return -ENOMEM; inode->i_ino = number+2; - inode->i_blksize = 1024; inode->i_uid = config.setuid ? config.uid : current->fsuid; inode->i_gid = config.setgid ? config.gid : current->fsgid; inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME; diff --git a/fs/eventpoll.c b/fs/eventpoll.c index 3a3567433b92..8d544334bcd2 100644 --- a/fs/eventpoll.c +++ b/fs/eventpoll.c @@ -1590,7 +1590,6 @@ static struct inode *ep_eventpoll_inode(void) inode->i_uid = current->fsuid; inode->i_gid = current->fsgid; inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME; - inode->i_blksize = PAGE_SIZE; return inode; eexit_1: diff --git a/fs/ext2/ialloc.c b/fs/ext2/ialloc.c index 695f69ccf908..2cb545bf0f3c 100644 --- a/fs/ext2/ialloc.c +++ b/fs/ext2/ialloc.c @@ -574,7 +574,6 @@ got: inode->i_mode = mode; inode->i_ino = ino; - inode->i_blksize = PAGE_SIZE; /* This is the optimal IO size (for stat), not the fs block size */ inode->i_blocks = 0; inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME_SEC; memset(ei->i_data, 0, sizeof(ei->i_data)); diff --git a/fs/ext2/inode.c b/fs/ext2/inode.c index fb4d3220eb8d..dd4e14c221e0 100644 --- a/fs/ext2/inode.c +++ b/fs/ext2/inode.c @@ -1094,7 +1094,6 @@ void ext2_read_inode (struct inode * inode) brelse (bh); goto bad_inode; } - inode->i_blksize = PAGE_SIZE; /* This is the optimal IO size (for stat), not the fs block size */ inode->i_blocks = le32_to_cpu(raw_inode->i_blocks); ei->i_flags = le32_to_cpu(raw_inode->i_flags); ei->i_faddr = le32_to_cpu(raw_inode->i_faddr); diff --git a/fs/ext3/ialloc.c b/fs/ext3/ialloc.c index 1e4ded8aa3cd..e45dbd651736 100644 --- a/fs/ext3/ialloc.c +++ b/fs/ext3/ialloc.c @@ -559,7 +559,6 @@ got: inode->i_ino = ino; /* This is the optimal IO size (for stat), not the fs block size */ - inode->i_blksize = PAGE_SIZE; inode->i_blocks = 0; inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME_SEC; diff --git a/fs/ext3/inode.c b/fs/ext3/inode.c index c9fc15f8b609..dcf4f1dd108b 100644 --- a/fs/ext3/inode.c +++ b/fs/ext3/inode.c @@ -2632,9 +2632,6 @@ void ext3_read_inode(struct inode * inode) * recovery code: that's fine, we're about to complete * the process of deleting those. */ } - inode->i_blksize = PAGE_SIZE; /* This is the optimal IO size - * (for stat), not the fs block - * size */ inode->i_blocks = le32_to_cpu(raw_inode->i_blocks); ei->i_flags = le32_to_cpu(raw_inode->i_flags); #ifdef EXT3_FRAGMENTS diff --git a/fs/fat/inode.c b/fs/fat/inode.c index e1035a590664..ab96ae823753 100644 --- a/fs/fat/inode.c +++ b/fs/fat/inode.c @@ -370,8 +370,6 @@ static int fat_fill_inode(struct inode *inode, struct msdos_dir_entry *de) inode->i_flags |= S_IMMUTABLE; } MSDOS_I(inode)->i_attrs = de->attr & ATTR_UNUSED; - /* this is as close to the truth as we can get ... */ - inode->i_blksize = sbi->cluster_size; inode->i_blocks = ((inode->i_size + (sbi->cluster_size - 1)) & ~((loff_t)sbi->cluster_size - 1)) >> 9; inode->i_mtime.tv_sec = @@ -1131,7 +1129,6 @@ static int fat_read_root(struct inode *inode) MSDOS_I(inode)->i_start = 0; inode->i_size = sbi->dir_entries * sizeof(struct msdos_dir_entry); } - inode->i_blksize = sbi->cluster_size; inode->i_blocks = ((inode->i_size + (sbi->cluster_size - 1)) & ~((loff_t)sbi->cluster_size - 1)) >> 9; MSDOS_I(inode)->i_logstart = 0; diff --git a/fs/freevxfs/vxfs_inode.c b/fs/freevxfs/vxfs_inode.c index 32a82ed108e4..4786d51ad3bd 100644 --- a/fs/freevxfs/vxfs_inode.c +++ b/fs/freevxfs/vxfs_inode.c @@ -239,7 +239,6 @@ vxfs_iinit(struct inode *ip, struct vxfs_inode_info *vip) ip->i_ctime.tv_nsec = 0; ip->i_mtime.tv_nsec = 0; - ip->i_blksize = PAGE_SIZE; ip->i_blocks = vip->vii_blocks; ip->i_generation = vip->vii_gen; diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c index 7d25092262ae..cb7cadb0b790 100644 --- a/fs/fuse/inode.c +++ b/fs/fuse/inode.c @@ -118,7 +118,6 @@ void fuse_change_attributes(struct inode *inode, struct fuse_attr *attr) inode->i_uid = attr->uid; inode->i_gid = attr->gid; i_size_write(inode, attr->size); - inode->i_blksize = PAGE_CACHE_SIZE; inode->i_blocks = attr->blocks; inode->i_atime.tv_sec = attr->atime; inode->i_atime.tv_nsec = attr->atimensec; diff --git a/fs/hfs/inode.c b/fs/hfs/inode.c index 315cf44a90b2..d05641c35fc9 100644 --- a/fs/hfs/inode.c +++ b/fs/hfs/inode.c @@ -154,7 +154,6 @@ struct inode *hfs_new_inode(struct inode *dir, struct qstr *name, int mode) inode->i_gid = current->fsgid; inode->i_nlink = 1; inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME_SEC; - inode->i_blksize = HFS_SB(sb)->alloc_blksz; HFS_I(inode)->flags = 0; HFS_I(inode)->rsrc_inode = NULL; HFS_I(inode)->fs_blocks = 0; @@ -284,7 +283,6 @@ static int hfs_read_inode(struct inode *inode, void *data) inode->i_uid = hsb->s_uid; inode->i_gid = hsb->s_gid; inode->i_nlink = 1; - inode->i_blksize = HFS_SB(inode->i_sb)->alloc_blksz; if (idata->key) HFS_I(inode)->cat_key = *idata->key; diff --git a/fs/hfsplus/inode.c b/fs/hfsplus/inode.c index 924ecdef8091..0eb1a6092668 100644 --- a/fs/hfsplus/inode.c +++ b/fs/hfsplus/inode.c @@ -304,7 +304,6 @@ struct inode *hfsplus_new_inode(struct super_block *sb, int mode) inode->i_gid = current->fsgid; inode->i_nlink = 1; inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME_SEC; - inode->i_blksize = HFSPLUS_SB(sb).alloc_blksz; INIT_LIST_HEAD(&HFSPLUS_I(inode).open_dir_list); init_MUTEX(&HFSPLUS_I(inode).extents_lock); atomic_set(&HFSPLUS_I(inode).opencnt, 0); @@ -407,7 +406,6 @@ int hfsplus_cat_read_inode(struct inode *inode, struct hfs_find_data *fd) type = hfs_bnode_read_u16(fd->bnode, fd->entryoffset); HFSPLUS_I(inode).dev = 0; - inode->i_blksize = HFSPLUS_SB(inode->i_sb).alloc_blksz; if (type == HFSPLUS_FOLDER) { struct hfsplus_cat_folder *folder = &entry.folder; diff --git a/fs/hostfs/hostfs_kern.c b/fs/hostfs/hostfs_kern.c index b82e3d9c8790..322e876c35ed 100644 --- a/fs/hostfs/hostfs_kern.c +++ b/fs/hostfs/hostfs_kern.c @@ -156,7 +156,6 @@ static int read_name(struct inode *ino, char *name) ino->i_mode = i_mode; ino->i_nlink = i_nlink; ino->i_size = i_size; - ino->i_blksize = i_blksize; ino->i_blocks = i_blocks; return(0); } diff --git a/fs/hpfs/inode.c b/fs/hpfs/inode.c index 56f2c338c4d9..bcf6ee36e065 100644 --- a/fs/hpfs/inode.c +++ b/fs/hpfs/inode.c @@ -17,7 +17,6 @@ void hpfs_init_inode(struct inode *i) i->i_gid = hpfs_sb(sb)->sb_gid; i->i_mode = hpfs_sb(sb)->sb_mode; hpfs_inode->i_conv = hpfs_sb(sb)->sb_conv; - i->i_blksize = 512; i->i_size = -1; i->i_blocks = -1; diff --git a/fs/hppfs/hppfs_kern.c b/fs/hppfs/hppfs_kern.c index 3a9bdf58166f..dcb6d2e988b8 100644 --- a/fs/hppfs/hppfs_kern.c +++ b/fs/hppfs/hppfs_kern.c @@ -152,7 +152,6 @@ static void hppfs_read_inode(struct inode *ino) ino->i_mode = proc_ino->i_mode; ino->i_nlink = proc_ino->i_nlink; ino->i_size = proc_ino->i_size; - ino->i_blksize = proc_ino->i_blksize; ino->i_blocks = proc_ino->i_blocks; } diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c index c3920c96dadf..e025a31b4c64 100644 --- a/fs/hugetlbfs/inode.c +++ b/fs/hugetlbfs/inode.c @@ -357,7 +357,6 @@ static struct inode *hugetlbfs_get_inode(struct super_block *sb, uid_t uid, inode->i_mode = mode; inode->i_uid = uid; inode->i_gid = gid; - inode->i_blksize = HPAGE_SIZE; inode->i_blocks = 0; inode->i_mapping->a_ops = &hugetlbfs_aops; inode->i_mapping->backing_dev_info =&hugetlbfs_backing_dev_info; diff --git a/fs/isofs/inode.c b/fs/isofs/inode.c index 10e47897bac7..4527692f432b 100644 --- a/fs/isofs/inode.c +++ b/fs/isofs/inode.c @@ -1235,7 +1235,7 @@ static void isofs_read_inode(struct inode *inode) } inode->i_uid = sbi->s_uid; inode->i_gid = sbi->s_gid; - inode->i_blocks = inode->i_blksize = 0; + inode->i_blocks = 0; ei->i_format_parm[0] = 0; ei->i_format_parm[1] = 0; @@ -1291,7 +1291,6 @@ static void isofs_read_inode(struct inode *inode) isonum_711 (de->ext_attr_length)); /* Set the number of blocks for stat() - should be done before RR */ - inode->i_blksize = PAGE_CACHE_SIZE; /* For stat() only */ inode->i_blocks = (inode->i_size + 511) >> 9; /* diff --git a/fs/jffs/inode-v23.c b/fs/jffs/inode-v23.c index 7358ef87f16b..f5cf9c93e243 100644 --- a/fs/jffs/inode-v23.c +++ b/fs/jffs/inode-v23.c @@ -364,7 +364,6 @@ jffs_new_inode(const struct inode * dir, struct jffs_raw_inode *raw_inode, inode->i_ctime.tv_nsec = 0; inode->i_mtime.tv_nsec = 0; inode->i_atime.tv_nsec = 0; - inode->i_blksize = PAGE_SIZE; inode->i_blocks = (inode->i_size + 511) >> 9; f = jffs_find_file(c, raw_inode->ino); @@ -1706,7 +1705,6 @@ jffs_read_inode(struct inode *inode) inode->i_mtime.tv_nsec = inode->i_ctime.tv_nsec = 0; - inode->i_blksize = PAGE_SIZE; inode->i_blocks = (inode->i_size + 511) >> 9; if (S_ISREG(inode->i_mode)) { inode->i_op = &jffs_file_inode_operations; diff --git a/fs/jffs2/fs.c b/fs/jffs2/fs.c index 4780f82825d6..72d9909d95ff 100644 --- a/fs/jffs2/fs.c +++ b/fs/jffs2/fs.c @@ -263,7 +263,6 @@ void jffs2_read_inode (struct inode *inode) inode->i_nlink = f->inocache->nlink; - inode->i_blksize = PAGE_SIZE; inode->i_blocks = (inode->i_size + 511) >> 9; switch (inode->i_mode & S_IFMT) { @@ -449,7 +448,6 @@ struct inode *jffs2_new_inode (struct inode *dir_i, int mode, struct jffs2_raw_i inode->i_atime = inode->i_ctime = inode->i_mtime = CURRENT_TIME_SEC; ri->atime = ri->mtime = ri->ctime = cpu_to_je32(I_SEC(inode->i_mtime)); - inode->i_blksize = PAGE_SIZE; inode->i_blocks = 0; inode->i_size = 0; diff --git a/fs/jfs/jfs_extent.c b/fs/jfs/jfs_extent.c index 4d52593a5fc6..4c74f0944f7e 100644 --- a/fs/jfs/jfs_extent.c +++ b/fs/jfs/jfs_extent.c @@ -468,7 +468,7 @@ int extRecord(struct inode *ip, xad_t * xp) int extFill(struct inode *ip, xad_t * xp) { int rc, nbperpage = JFS_SBI(ip->i_sb)->nbperpage; - s64 blkno = offsetXAD(xp) >> ip->i_blksize; + s64 blkno = offsetXAD(xp) >> ip->i_blkbits; // assert(ISSPARSE(ip)); diff --git a/fs/jfs/jfs_imap.c b/fs/jfs/jfs_imap.c index ccbe60aff83d..369d7f39c040 100644 --- a/fs/jfs/jfs_imap.c +++ b/fs/jfs/jfs_imap.c @@ -3115,7 +3115,6 @@ static int copy_from_dinode(struct dinode * dip, struct inode *ip) ip->i_mtime.tv_nsec = le32_to_cpu(dip->di_mtime.tv_nsec); ip->i_ctime.tv_sec = le32_to_cpu(dip->di_ctime.tv_sec); ip->i_ctime.tv_nsec = le32_to_cpu(dip->di_ctime.tv_nsec); - ip->i_blksize = ip->i_sb->s_blocksize; ip->i_blocks = LBLK2PBLK(ip->i_sb, le64_to_cpu(dip->di_nblocks)); ip->i_generation = le32_to_cpu(dip->di_gen); diff --git a/fs/jfs/jfs_inode.c b/fs/jfs/jfs_inode.c index 495df402916d..bffaca9ae3a2 100644 --- a/fs/jfs/jfs_inode.c +++ b/fs/jfs/jfs_inode.c @@ -115,7 +115,6 @@ struct inode *ialloc(struct inode *parent, umode_t mode) } jfs_inode->mode2 |= mode; - inode->i_blksize = sb->s_blocksize; inode->i_blocks = 0; inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME; jfs_inode->otime = inode->i_ctime.tv_sec; diff --git a/fs/jfs/jfs_metapage.c b/fs/jfs/jfs_metapage.c index e1e0a6e6ebdf..f5afc129d6b1 100644 --- a/fs/jfs/jfs_metapage.c +++ b/fs/jfs/jfs_metapage.c @@ -257,7 +257,7 @@ static sector_t metapage_get_blocks(struct inode *inode, sector_t lblock, int rc = 0; int xflag; s64 xaddr; - sector_t file_blocks = (inode->i_size + inode->i_blksize - 1) >> + sector_t file_blocks = (inode->i_size + inode->i_sb->s_blocksize - 1) >> inode->i_blkbits; if (lblock >= file_blocks) diff --git a/fs/libfs.c b/fs/libfs.c index 2751793beeaa..8db5afb7b0a7 100644 --- a/fs/libfs.c +++ b/fs/libfs.c @@ -383,7 +383,6 @@ int simple_fill_super(struct super_block *s, int magic, struct tree_descr *files return -ENOMEM; inode->i_mode = S_IFDIR | 0755; inode->i_uid = inode->i_gid = 0; - inode->i_blksize = PAGE_CACHE_SIZE; inode->i_blocks = 0; inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME; inode->i_op = &simple_dir_inode_operations; @@ -405,7 +404,6 @@ int simple_fill_super(struct super_block *s, int magic, struct tree_descr *files goto out; inode->i_mode = S_IFREG | files->mode; inode->i_uid = inode->i_gid = 0; - inode->i_blksize = PAGE_CACHE_SIZE; inode->i_blocks = 0; inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME; inode->i_fop = files->ops; diff --git a/fs/minix/bitmap.c b/fs/minix/bitmap.c index 4a6abc49418e..df6b1075b549 100644 --- a/fs/minix/bitmap.c +++ b/fs/minix/bitmap.c @@ -254,7 +254,7 @@ struct inode * minix_new_inode(const struct inode * dir, int * error) inode->i_gid = (dir->i_mode & S_ISGID) ? dir->i_gid : current->fsgid; inode->i_ino = j; inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME_SEC; - inode->i_blocks = inode->i_blksize = 0; + inode->i_blocks = 0; memset(&minix_i(inode)->u, 0, sizeof(minix_i(inode)->u)); insert_inode_hash(inode); mark_inode_dirty(inode); diff --git a/fs/minix/inode.c b/fs/minix/inode.c index 826b9d830650..c11a4b9fb863 100644 --- a/fs/minix/inode.c +++ b/fs/minix/inode.c @@ -396,7 +396,7 @@ static void V1_minix_read_inode(struct inode * inode) inode->i_mtime.tv_nsec = 0; inode->i_atime.tv_nsec = 0; inode->i_ctime.tv_nsec = 0; - inode->i_blocks = inode->i_blksize = 0; + inode->i_blocks = 0; for (i = 0; i < 9; i++) minix_inode->u.i1_data[i] = raw_inode->i_zone[i]; minix_set_inode(inode, old_decode_dev(raw_inode->i_zone[0])); @@ -429,7 +429,7 @@ static void V2_minix_read_inode(struct inode * inode) inode->i_mtime.tv_nsec = 0; inode->i_atime.tv_nsec = 0; inode->i_ctime.tv_nsec = 0; - inode->i_blocks = inode->i_blksize = 0; + inode->i_blocks = 0; for (i = 0; i < 10; i++) minix_inode->u.i2_data[i] = raw_inode->i_zone[i]; minix_set_inode(inode, old_decode_dev(raw_inode->i_zone[0])); diff --git a/fs/ncpfs/inode.c b/fs/ncpfs/inode.c index 8244710e97dd..42e3bef270c9 100644 --- a/fs/ncpfs/inode.c +++ b/fs/ncpfs/inode.c @@ -223,7 +223,6 @@ static void ncp_set_attr(struct inode *inode, struct ncp_entry_info *nwinfo) inode->i_nlink = 1; inode->i_uid = server->m.uid; inode->i_gid = server->m.gid; - inode->i_blksize = NCP_BLOCK_SIZE; ncp_update_dates(inode, &nwinfo->i); ncp_update_inode(inode, nwinfo); diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c index 931f52a19579..bc9376ca86cd 100644 --- a/fs/nfs/inode.c +++ b/fs/nfs/inode.c @@ -277,10 +277,8 @@ nfs_fhget(struct super_block *sb, struct nfs_fh *fh, struct nfs_fattr *fattr) * report the blocks in 512byte units */ inode->i_blocks = nfs_calc_block_size(fattr->du.nfs3.used); - inode->i_blksize = inode->i_sb->s_blocksize; } else { inode->i_blocks = fattr->du.nfs2.blocks; - inode->i_blksize = fattr->du.nfs2.blocksize; } nfsi->attrtimeo = NFS_MINATTRTIMEO(inode); nfsi->attrtimeo_timestamp = jiffies; @@ -969,10 +967,8 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr) * report the blocks in 512byte units */ inode->i_blocks = nfs_calc_block_size(fattr->du.nfs3.used); - inode->i_blksize = inode->i_sb->s_blocksize; } else { inode->i_blocks = fattr->du.nfs2.blocks; - inode->i_blksize = fattr->du.nfs2.blocksize; } if ((fattr->valid & NFS_ATTR_FATTR_V4) != 0 && diff --git a/fs/ntfs/inode.c b/fs/ntfs/inode.c index 31852121b3f5..933dbd89c2a4 100644 --- a/fs/ntfs/inode.c +++ b/fs/ntfs/inode.c @@ -556,8 +556,6 @@ static int ntfs_read_locked_inode(struct inode *vi) /* Setup the generic vfs inode parts now. */ - /* This is the optimal IO size (for stat), not the fs block size. */ - vi->i_blksize = PAGE_CACHE_SIZE; /* * This is for checking whether an inode has changed w.r.t. a file so * that the file can be updated if necessary (compare with f_version). @@ -1234,7 +1232,6 @@ static int ntfs_read_locked_attr_inode(struct inode *base_vi, struct inode *vi) base_ni = NTFS_I(base_vi); /* Just mirror the values from the base inode. */ - vi->i_blksize = base_vi->i_blksize; vi->i_version = base_vi->i_version; vi->i_uid = base_vi->i_uid; vi->i_gid = base_vi->i_gid; @@ -1504,7 +1501,6 @@ static int ntfs_read_locked_index_inode(struct inode *base_vi, struct inode *vi) ni = NTFS_I(vi); base_ni = NTFS_I(base_vi); /* Just mirror the values from the base inode. */ - vi->i_blksize = base_vi->i_blksize; vi->i_version = base_vi->i_version; vi->i_uid = base_vi->i_uid; vi->i_gid = base_vi->i_gid; diff --git a/fs/ntfs/mft.c b/fs/ntfs/mft.c index 578fb3d5e803..584260fd6848 100644 --- a/fs/ntfs/mft.c +++ b/fs/ntfs/mft.c @@ -2637,11 +2637,6 @@ mft_rec_already_initialized: goto undo_mftbmp_alloc; } vi->i_ino = bit; - /* - * This is the optimal IO size (for stat), not the fs block - * size. - */ - vi->i_blksize = PAGE_CACHE_SIZE; /* * This is for checking whether an inode has changed w.r.t. a * file so that the file can be updated if necessary (compare diff --git a/fs/ocfs2/dlm/dlmfs.c b/fs/ocfs2/dlm/dlmfs.c index 0ff0898a0b9c..0368c6402182 100644 --- a/fs/ocfs2/dlm/dlmfs.c +++ b/fs/ocfs2/dlm/dlmfs.c @@ -335,7 +335,6 @@ static struct inode *dlmfs_get_root_inode(struct super_block *sb) inode->i_mode = mode; inode->i_uid = current->fsuid; inode->i_gid = current->fsgid; - inode->i_blksize = PAGE_CACHE_SIZE; inode->i_blocks = 0; inode->i_mapping->backing_dev_info = &dlmfs_backing_dev_info; inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME; @@ -362,7 +361,6 @@ static struct inode *dlmfs_get_inode(struct inode *parent, inode->i_mode = mode; inode->i_uid = current->fsuid; inode->i_gid = current->fsgid; - inode->i_blksize = PAGE_CACHE_SIZE; inode->i_blocks = 0; inode->i_mapping->backing_dev_info = &dlmfs_backing_dev_info; inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME; diff --git a/fs/ocfs2/inode.c b/fs/ocfs2/inode.c index 69d3db569166..16e8e74dc966 100644 --- a/fs/ocfs2/inode.c +++ b/fs/ocfs2/inode.c @@ -269,7 +269,6 @@ int ocfs2_populate_inode(struct inode *inode, struct ocfs2_dinode *fe, inode->i_mode = le16_to_cpu(fe->i_mode); inode->i_uid = le32_to_cpu(fe->i_uid); inode->i_gid = le32_to_cpu(fe->i_gid); - inode->i_blksize = (u32)osb->s_clustersize; /* Fast symlinks will have i_size but no allocated clusters. */ if (S_ISLNK(inode->i_mode) && !fe->i_clusters) @@ -1258,8 +1257,6 @@ leave: void ocfs2_refresh_inode(struct inode *inode, struct ocfs2_dinode *fe) { - struct ocfs2_super *osb = OCFS2_SB(inode->i_sb); - spin_lock(&OCFS2_I(inode)->ip_lock); OCFS2_I(inode)->ip_clusters = le32_to_cpu(fe->i_clusters); @@ -1270,7 +1267,6 @@ void ocfs2_refresh_inode(struct inode *inode, inode->i_uid = le32_to_cpu(fe->i_uid); inode->i_gid = le32_to_cpu(fe->i_gid); inode->i_mode = le16_to_cpu(fe->i_mode); - inode->i_blksize = (u32) osb->s_clustersize; if (S_ISLNK(inode->i_mode) && le32_to_cpu(fe->i_clusters) == 0) inode->i_blocks = 0; else diff --git a/fs/pipe.c b/fs/pipe.c index 20352573e025..f3b6f71e9d0b 100644 --- a/fs/pipe.c +++ b/fs/pipe.c @@ -879,7 +879,6 @@ static struct inode * get_pipe_inode(void) inode->i_uid = current->fsuid; inode->i_gid = current->fsgid; inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME; - inode->i_blksize = PAGE_SIZE; return inode; diff --git a/fs/qnx4/inode.c b/fs/qnx4/inode.c index fddbd61c68d0..5a41db2a218d 100644 --- a/fs/qnx4/inode.c +++ b/fs/qnx4/inode.c @@ -496,7 +496,6 @@ static void qnx4_read_inode(struct inode *inode) inode->i_ctime.tv_sec = le32_to_cpu(raw_inode->di_ctime); inode->i_ctime.tv_nsec = 0; inode->i_blocks = le32_to_cpu(raw_inode->di_first_xtnt.xtnt_size); - inode->i_blksize = QNX4_DIR_ENTRY_SIZE; memcpy(qnx4_inode, raw_inode, QNX4_DIR_ENTRY_SIZE); if (S_ISREG(inode->i_mode)) { diff --git a/fs/ramfs/inode.c b/fs/ramfs/inode.c index b9677335cc8d..bc0e51662424 100644 --- a/fs/ramfs/inode.c +++ b/fs/ramfs/inode.c @@ -58,7 +58,6 @@ struct inode *ramfs_get_inode(struct super_block *sb, int mode, dev_t dev) inode->i_mode = mode; inode->i_uid = current->fsuid; inode->i_gid = current->fsgid; - inode->i_blksize = PAGE_CACHE_SIZE; inode->i_blocks = 0; inode->i_mapping->a_ops = &ramfs_aops; inode->i_mapping->backing_dev_info = &ramfs_backing_dev_info; diff --git a/fs/reiserfs/inode.c b/fs/reiserfs/inode.c index 52f1e2136546..8810fda0da46 100644 --- a/fs/reiserfs/inode.c +++ b/fs/reiserfs/inode.c @@ -17,8 +17,6 @@ #include #include -extern int reiserfs_default_io_size; /* default io size devuned in super.c */ - static int reiserfs_commit_write(struct file *f, struct page *page, unsigned from, unsigned to); static int reiserfs_prepare_write(struct file *f, struct page *page, @@ -1122,7 +1120,6 @@ static void init_inode(struct inode *inode, struct path *path) ih = PATH_PITEM_HEAD(path); copy_key(INODE_PKEY(inode), &(ih->ih_key)); - inode->i_blksize = reiserfs_default_io_size; INIT_LIST_HEAD(&(REISERFS_I(inode)->i_prealloc_list)); REISERFS_I(inode)->i_flags = 0; @@ -1877,7 +1874,6 @@ int reiserfs_new_inode(struct reiserfs_transaction_handle *th, } // these do not go to on-disk stat data inode->i_ino = le32_to_cpu(ih.ih_key.k_objectid); - inode->i_blksize = reiserfs_default_io_size; // store in in-core inode the key of stat data and version all // object items will have (directory items will have old offset diff --git a/fs/smbfs/inode.c b/fs/smbfs/inode.c index 92cf60aa6121..2c122ee83adb 100644 --- a/fs/smbfs/inode.c +++ b/fs/smbfs/inode.c @@ -166,7 +166,6 @@ smb_get_inode_attr(struct inode *inode, struct smb_fattr *fattr) fattr->f_mtime = inode->i_mtime; fattr->f_ctime = inode->i_ctime; fattr->f_atime = inode->i_atime; - fattr->f_blksize= inode->i_blksize; fattr->f_blocks = inode->i_blocks; fattr->attr = SMB_I(inode)->attr; @@ -200,7 +199,6 @@ smb_set_inode_attr(struct inode *inode, struct smb_fattr *fattr) inode->i_uid = fattr->f_uid; inode->i_gid = fattr->f_gid; inode->i_ctime = fattr->f_ctime; - inode->i_blksize= fattr->f_blksize; inode->i_blocks = fattr->f_blocks; inode->i_size = fattr->f_size; inode->i_mtime = fattr->f_mtime; diff --git a/fs/smbfs/proc.c b/fs/smbfs/proc.c index c3495059889d..40e174db9872 100644 --- a/fs/smbfs/proc.c +++ b/fs/smbfs/proc.c @@ -1826,7 +1826,6 @@ smb_init_dirent(struct smb_sb_info *server, struct smb_fattr *fattr) fattr->f_nlink = 1; fattr->f_uid = server->mnt->uid; fattr->f_gid = server->mnt->gid; - fattr->f_blksize = SMB_ST_BLKSIZE; fattr->f_unix = 0; } diff --git a/fs/stat.c b/fs/stat.c index 3a44dcf97da2..60a31d5e5966 100644 --- a/fs/stat.c +++ b/fs/stat.c @@ -14,6 +14,7 @@ #include #include #include +#include #include #include @@ -32,7 +33,7 @@ void generic_fillattr(struct inode *inode, struct kstat *stat) stat->ctime = inode->i_ctime; stat->size = i_size_read(inode); stat->blocks = inode->i_blocks; - stat->blksize = inode->i_blksize; + stat->blksize = (1 << inode->i_blkbits); } EXPORT_SYMBOL(generic_fillattr); diff --git a/fs/sysfs/inode.c b/fs/sysfs/inode.c index fd7cd5f843d2..e79e38d52c00 100644 --- a/fs/sysfs/inode.c +++ b/fs/sysfs/inode.c @@ -125,7 +125,6 @@ struct inode * sysfs_new_inode(mode_t mode, struct sysfs_dirent * sd) { struct inode * inode = new_inode(sysfs_sb); if (inode) { - inode->i_blksize = PAGE_CACHE_SIZE; inode->i_blocks = 0; inode->i_mapping->a_ops = &sysfs_aops; inode->i_mapping->backing_dev_info = &sysfs_backing_dev_info; diff --git a/fs/sysv/ialloc.c b/fs/sysv/ialloc.c index 9b585d1081c0..115ab0d6f4bc 100644 --- a/fs/sysv/ialloc.c +++ b/fs/sysv/ialloc.c @@ -170,7 +170,7 @@ struct inode * sysv_new_inode(const struct inode * dir, mode_t mode) inode->i_uid = current->fsuid; inode->i_ino = fs16_to_cpu(sbi, ino); inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME_SEC; - inode->i_blocks = inode->i_blksize = 0; + inode->i_blocks = 0; memset(SYSV_I(inode)->i_data, 0, sizeof(SYSV_I(inode)->i_data)); SYSV_I(inode)->i_dir_start_lookup = 0; insert_inode_hash(inode); diff --git a/fs/sysv/inode.c b/fs/sysv/inode.c index 58b2d22142ba..d63c5e48b050 100644 --- a/fs/sysv/inode.c +++ b/fs/sysv/inode.c @@ -201,7 +201,7 @@ static void sysv_read_inode(struct inode *inode) inode->i_ctime.tv_nsec = 0; inode->i_atime.tv_nsec = 0; inode->i_mtime.tv_nsec = 0; - inode->i_blocks = inode->i_blksize = 0; + inode->i_blocks = 0; si = SYSV_I(inode); for (block = 0; block < 10+1+1+1; block++) diff --git a/fs/udf/ialloc.c b/fs/udf/ialloc.c index d1d38238ce65..8206983f2ebf 100644 --- a/fs/udf/ialloc.c +++ b/fs/udf/ialloc.c @@ -121,7 +121,6 @@ struct inode * udf_new_inode (struct inode *dir, int mode, int * err) UDF_I_LOCATION(inode).logicalBlockNum = block; UDF_I_LOCATION(inode).partitionReferenceNum = UDF_I_LOCATION(dir).partitionReferenceNum; inode->i_ino = udf_get_lb_pblock(sb, UDF_I_LOCATION(inode), 0); - inode->i_blksize = PAGE_SIZE; inode->i_blocks = 0; UDF_I_LENEATTR(inode) = 0; UDF_I_LENALLOC(inode) = 0; diff --git a/fs/udf/inode.c b/fs/udf/inode.c index 605f5111b6d8..b223b32db991 100644 --- a/fs/udf/inode.c +++ b/fs/udf/inode.c @@ -916,8 +916,6 @@ __udf_read_inode(struct inode *inode) * i_nlink = 1 * i_op = NULL; */ - inode->i_blksize = PAGE_SIZE; - bh = udf_read_ptagged(inode->i_sb, UDF_I_LOCATION(inode), 0, &ident); if (!bh) diff --git a/fs/ufs/ialloc.c b/fs/ufs/ialloc.c index 9501dcd3b213..2ad1259c6eca 100644 --- a/fs/ufs/ialloc.c +++ b/fs/ufs/ialloc.c @@ -255,7 +255,6 @@ cg_found: inode->i_gid = current->fsgid; inode->i_ino = cg * uspi->s_ipg + bit; - inode->i_blksize = PAGE_SIZE; /* This is the optimal IO size (for stat), not the fs block size */ inode->i_blocks = 0; inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME_SEC; ufsi->i_flags = UFS_I(dir)->i_flags; diff --git a/fs/ufs/inode.c b/fs/ufs/inode.c index 30c6e8a9446c..ee1eaa6f4ec2 100644 --- a/fs/ufs/inode.c +++ b/fs/ufs/inode.c @@ -741,7 +741,6 @@ void ufs_read_inode(struct inode * inode) ufs1_read_inode(inode, ufs_inode + ufs_inotofsbo(inode->i_ino)); } - inode->i_blksize = PAGE_SIZE;/*This is the optimal IO size (for stat)*/ inode->i_version++; ufsi->i_lastfrag = (inode->i_size + uspi->s_fsize - 1) >> uspi->s_fshift; diff --git a/fs/xfs/linux-2.6/xfs_super.c b/fs/xfs/linux-2.6/xfs_super.c index 4754f342a5d3..9df9ed37d219 100644 --- a/fs/xfs/linux-2.6/xfs_super.c +++ b/fs/xfs/linux-2.6/xfs_super.c @@ -171,7 +171,6 @@ xfs_revalidate_inode( break; } - inode->i_blksize = xfs_preferred_iosize(mp); inode->i_generation = ip->i_d.di_gen; i_size_write(inode, ip->i_d.di_size); inode->i_blocks = diff --git a/fs/xfs/linux-2.6/xfs_vnode.c b/fs/xfs/linux-2.6/xfs_vnode.c index 6628d96b6fd6..553fa731ade5 100644 --- a/fs/xfs/linux-2.6/xfs_vnode.c +++ b/fs/xfs/linux-2.6/xfs_vnode.c @@ -122,7 +122,6 @@ vn_revalidate_core( inode->i_blocks = vap->va_nblocks; inode->i_mtime = vap->va_mtime; inode->i_ctime = vap->va_ctime; - inode->i_blksize = vap->va_blocksize; if (vap->va_xflags & XFS_XFLAG_IMMUTABLE) inode->i_flags |= S_IMMUTABLE; else diff --git a/include/linux/fs.h b/include/linux/fs.h index 192e69bb55b5..8f74dfbb2edd 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -512,7 +512,6 @@ struct inode { struct timespec i_mtime; struct timespec i_ctime; unsigned int i_blkbits; - unsigned long i_blksize; unsigned long i_version; blkcnt_t i_blocks; unsigned short i_bytes; diff --git a/include/linux/nfsd/nfsfh.h b/include/linux/nfsd/nfsfh.h index f9edcd2ff3c8..31a3cb617ce0 100644 --- a/include/linux/nfsd/nfsfh.h +++ b/include/linux/nfsd/nfsfh.h @@ -269,14 +269,8 @@ fill_post_wcc(struct svc_fh *fhp) fhp->fh_post_uid = inode->i_uid; fhp->fh_post_gid = inode->i_gid; fhp->fh_post_size = inode->i_size; - if (inode->i_blksize) { - fhp->fh_post_blksize = inode->i_blksize; - fhp->fh_post_blocks = inode->i_blocks; - } else { - fhp->fh_post_blksize = BLOCK_SIZE; - /* how much do we care for accuracy with MinixFS? */ - fhp->fh_post_blocks = (inode->i_size+511) >> 9; - } + fhp->fh_post_blksize = BLOCK_SIZE; + fhp->fh_post_blocks = inode->i_blocks; fhp->fh_post_rdev[0] = htonl((u32)imajor(inode)); fhp->fh_post_rdev[1] = htonl((u32)iminor(inode)); fhp->fh_post_atime = inode->i_atime; diff --git a/include/linux/smb.h b/include/linux/smb.h index 6df3b1501559..f098dff93f6b 100644 --- a/include/linux/smb.h +++ b/include/linux/smb.h @@ -89,7 +89,6 @@ struct smb_fattr { struct timespec f_atime; struct timespec f_mtime; struct timespec f_ctime; - unsigned long f_blksize; unsigned long f_blocks; int f_unix; }; diff --git a/ipc/mqueue.c b/ipc/mqueue.c index f8381f0660b2..840f8a6fb85f 100644 --- a/ipc/mqueue.c +++ b/ipc/mqueue.c @@ -115,7 +115,6 @@ static struct inode *mqueue_get_inode(struct super_block *sb, int mode, inode->i_mode = mode; inode->i_uid = current->fsuid; inode->i_gid = current->fsgid; - inode->i_blksize = PAGE_CACHE_SIZE; inode->i_blocks = 0; inode->i_mtime = inode->i_ctime = inode->i_atime = CURRENT_TIME; diff --git a/kernel/cpuset.c b/kernel/cpuset.c index cff41511269f..1b32c2c04c15 100644 --- a/kernel/cpuset.c +++ b/kernel/cpuset.c @@ -289,7 +289,6 @@ static struct inode *cpuset_new_inode(mode_t mode) inode->i_mode = mode; inode->i_uid = current->fsuid; inode->i_gid = current->fsgid; - inode->i_blksize = PAGE_CACHE_SIZE; inode->i_blocks = 0; inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME; inode->i_mapping->backing_dev_info = &cpuset_backing_dev_info; diff --git a/mm/shmem.c b/mm/shmem.c index 0a8e29cf87e0..eda907c3a86a 100644 --- a/mm/shmem.c +++ b/mm/shmem.c @@ -1351,7 +1351,6 @@ shmem_get_inode(struct super_block *sb, int mode, dev_t dev) inode->i_mode = mode; inode->i_uid = current->fsuid; inode->i_gid = current->fsgid; - inode->i_blksize = PAGE_CACHE_SIZE; inode->i_blocks = 0; inode->i_mapping->a_ops = &shmem_aops; inode->i_mapping->backing_dev_info = &shmem_backing_dev_info; diff --git a/net/sunrpc/rpc_pipe.c b/net/sunrpc/rpc_pipe.c index f65bea74734d..700c6e061a04 100644 --- a/net/sunrpc/rpc_pipe.c +++ b/net/sunrpc/rpc_pipe.c @@ -488,7 +488,6 @@ rpc_get_inode(struct super_block *sb, int mode) return NULL; inode->i_mode = mode; inode->i_uid = inode->i_gid = 0; - inode->i_blksize = PAGE_CACHE_SIZE; inode->i_blocks = 0; inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME; switch(mode & S_IFMT) { diff --git a/security/inode.c b/security/inode.c index 176aacea8ca4..49ee51529396 100644 --- a/security/inode.c +++ b/security/inode.c @@ -64,7 +64,6 @@ static struct inode *get_inode(struct super_block *sb, int mode, dev_t dev) inode->i_mode = mode; inode->i_uid = 0; inode->i_gid = 0; - inode->i_blksize = PAGE_CACHE_SIZE; inode->i_blocks = 0; inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME; switch (mode & S_IFMT) { diff --git a/security/selinux/selinuxfs.c b/security/selinux/selinuxfs.c index 00534c302ba2..bab7b386cb8d 100644 --- a/security/selinux/selinuxfs.c +++ b/security/selinux/selinuxfs.c @@ -771,7 +771,6 @@ static struct inode *sel_make_inode(struct super_block *sb, int mode) if (ret) { ret->i_mode = mode; ret->i_uid = ret->i_gid = 0; - ret->i_blksize = PAGE_CACHE_SIZE; ret->i_blocks = 0; ret->i_atime = ret->i_mtime = ret->i_ctime = CURRENT_TIME; } -- cgit v1.2.3 From ebba5f9fcb882306bef7175dee987342ec6fcf2f Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Wed, 27 Sep 2006 01:50:55 -0700 Subject: [PATCH] consistently use MAX_ERRNO in __syscall_return Consistently use MAX_ERRNO when checking for errors in __syscall_return(). [ralf@linux-mips.org: build fix] Signed-off-by: Randy Dunlap Signed-off-by: Ralf Baechle Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-arm/unistd.h | 3 ++- include/asm-arm26/unistd.h | 3 ++- include/asm-frv/unistd.h | 3 ++- include/asm-h8300/unistd.h | 6 +++--- include/asm-i386/unistd.h | 5 +++-- include/asm-m32r/unistd.h | 5 +++-- include/asm-m68k/unistd.h | 5 +++-- include/asm-m68knommu/unistd.h | 5 +++-- include/asm-s390/unistd.h | 4 +++- include/asm-sh/unistd.h | 7 +++++-- include/asm-sh64/unistd.h | 6 ++++-- include/asm-v850/unistd.h | 5 +++-- include/asm-x86_64/unistd.h | 5 +++-- include/linux/err.h | 4 ++++ 14 files changed, 43 insertions(+), 23 deletions(-) (limited to 'include') diff --git a/include/asm-arm/unistd.h b/include/asm-arm/unistd.h index 1e891f860ef3..2ab4078334bf 100644 --- a/include/asm-arm/unistd.h +++ b/include/asm-arm/unistd.h @@ -377,6 +377,7 @@ #endif #ifdef __KERNEL__ +#include #include #define __sys2(x) #x @@ -396,7 +397,7 @@ #define __syscall_return(type, res) \ do { \ - if ((unsigned long)(res) >= (unsigned long)(-129)) { \ + if ((unsigned long)(res) >= (unsigned long)(-MAX_ERRNO)) { \ errno = -(res); \ res = -1; \ } \ diff --git a/include/asm-arm26/unistd.h b/include/asm-arm26/unistd.h index 70eb6d91cfd0..c6d2436c9d34 100644 --- a/include/asm-arm26/unistd.h +++ b/include/asm-arm26/unistd.h @@ -311,6 +311,7 @@ #define __ARM_NR_usr26 (__ARM_NR_BASE+3) #ifdef __KERNEL__ +#include #include #define __sys2(x) #x @@ -322,7 +323,7 @@ #define __syscall_return(type, res) \ do { \ - if ((unsigned long)(res) >= (unsigned long)(-125)) { \ + if ((unsigned long)(res) >= (unsigned long)-MAX_ERRNO) { \ errno = -(res); \ res = -1; \ } \ diff --git a/include/asm-frv/unistd.h b/include/asm-frv/unistd.h index b80dbd839475..d104d1b91d39 100644 --- a/include/asm-frv/unistd.h +++ b/include/asm-frv/unistd.h @@ -320,6 +320,7 @@ #ifdef __KERNEL__ #define NR_syscalls 310 +#include /* * process the return value of a syscall, consigning it to one of two possible fates @@ -329,7 +330,7 @@ #define __syscall_return(type, res) \ do { \ unsigned long __sr2 = (res); \ - if (__builtin_expect(__sr2 >= (unsigned long)(-4095), 0)) { \ + if (__builtin_expect(__sr2 >= (unsigned long)(-MAX_ERRNO), 0)) { \ errno = (-__sr2); \ __sr2 = ~0UL; \ } \ diff --git a/include/asm-h8300/unistd.h b/include/asm-h8300/unistd.h index 226dd596c2da..a2dd90462d80 100644 --- a/include/asm-h8300/unistd.h +++ b/include/asm-h8300/unistd.h @@ -295,14 +295,14 @@ #ifdef __KERNEL__ #define NR_syscalls 289 +#include - -/* user-visible error numbers are in the range -1 - -122: see +/* user-visible error numbers are in the range -1 - -MAX_ERRNO: see */ #define __syscall_return(type, res) \ do { \ - if ((unsigned long)(res) >= (unsigned long)(-125)) { \ + if ((unsigned long)(res) >= (unsigned long)(-MAX_ERRNO)) { \ /* avoid using res which is declared to be in register d0; \ errno might expand to a function call and clobber it. */ \ int __err = -(res); \ diff --git a/include/asm-i386/unistd.h b/include/asm-i386/unistd.h index 565d0897b205..bd9987087adc 100644 --- a/include/asm-i386/unistd.h +++ b/include/asm-i386/unistd.h @@ -328,14 +328,15 @@ #ifdef __KERNEL__ #define NR_syscalls 319 +#include /* - * user-visible error numbers are in the range -1 - -128: see + * user-visible error numbers are in the range -1 - -MAX_ERRNO: see * */ #define __syscall_return(type, res) \ do { \ - if ((unsigned long)(res) >= (unsigned long)(-(128 + 1))) { \ + if ((unsigned long)(res) >= (unsigned long)(-MAX_ERRNO)) { \ errno = -(res); \ res = -1; \ } \ diff --git a/include/asm-m32r/unistd.h b/include/asm-m32r/unistd.h index 89f376e6229f..5c6a9ac6cf1a 100644 --- a/include/asm-m32r/unistd.h +++ b/include/asm-m32r/unistd.h @@ -296,8 +296,9 @@ #ifdef __KERNEL__ #define NR_syscalls 285 +#include -/* user-visible error numbers are in the range -1 - -124: see +/* user-visible error numbers are in the range -1 - -MAX_ERRNO: see * */ @@ -305,7 +306,7 @@ #define __syscall_return(type, res) \ do { \ - if ((unsigned long)(res) >= (unsigned long)(-(124 + 1))) { \ + if ((unsigned long)(res) >= (unsigned long)(-MAX_ERRNO)) { \ /* Avoid using "res" which is declared to be in register r0; \ errno might expand to a function call and clobber it. */ \ int __err = -(res); \ diff --git a/include/asm-m68k/unistd.h b/include/asm-m68k/unistd.h index 7c0b6296b45c..751632b904db 100644 --- a/include/asm-m68k/unistd.h +++ b/include/asm-m68k/unistd.h @@ -288,13 +288,14 @@ #ifdef __KERNEL__ #define NR_syscalls 282 +#include -/* user-visible error numbers are in the range -1 - -124: see +/* user-visible error numbers are in the range -1 - -MAX_ERRNO: see */ #define __syscall_return(type, res) \ do { \ - if ((unsigned long)(res) >= (unsigned long)(-125)) { \ + if ((unsigned long)(res) >= (unsigned long)(-MAX_ERRNO)) { \ /* avoid using res which is declared to be in register d0; \ errno might expand to a function call and clobber it. */ \ int __err = -(res); \ diff --git a/include/asm-m68knommu/unistd.h b/include/asm-m68knommu/unistd.h index 1b2abdf281e1..21fdc37c5c2c 100644 --- a/include/asm-m68knommu/unistd.h +++ b/include/asm-m68knommu/unistd.h @@ -289,13 +289,14 @@ #ifdef __KERNEL__ #define NR_syscalls 282 +#include -/* user-visible error numbers are in the range -1 - -122: see +/* user-visible error numbers are in the range -1 - -MAX_ERRNO: see */ #define __syscall_return(type, res) \ do { \ - if ((unsigned long)(res) >= (unsigned long)(-125)) { \ + if ((unsigned long)(res) >= (unsigned long)(-MAX_ERRNO)) { \ /* avoid using res which is declared to be in register d0; \ errno might expand to a function call and clobber it. */ \ int __err = -(res); \ diff --git a/include/asm-s390/unistd.h b/include/asm-s390/unistd.h index 02b942d85c37..d49c54cb5505 100644 --- a/include/asm-s390/unistd.h +++ b/include/asm-s390/unistd.h @@ -342,9 +342,11 @@ #ifdef __KERNEL__ +#include + #define __syscall_return(type, res) \ do { \ - if ((unsigned long)(res) >= (unsigned long)(-4095)) {\ + if ((unsigned long)(res) >= (unsigned long)(-MAX_ERRNO)) { \ errno = -(res); \ res = -1; \ } \ diff --git a/include/asm-sh/unistd.h b/include/asm-sh/unistd.h index 76b5430cb458..da127d7901af 100644 --- a/include/asm-sh/unistd.h +++ b/include/asm-sh/unistd.h @@ -306,11 +306,14 @@ #ifdef __KERNEL__ -/* user-visible error numbers are in the range -1 - -124: see */ +#include + +/* user-visible error numbers are in the range -1 - -MAX_ERRNO: + * see */ #define __syscall_return(type, res) \ do { \ - if ((unsigned long)(res) >= (unsigned long)(-124)) { \ + if ((unsigned long)(res) >= (unsigned long)(-MAX_ERRNO)) { \ /* Avoid using "res" which is declared to be in register r0; \ errno might expand to a function call and clobber it. */ \ int __err = -(res); \ diff --git a/include/asm-sh64/unistd.h b/include/asm-sh64/unistd.h index 9a1590fffc15..c113566bef33 100644 --- a/include/asm-sh64/unistd.h +++ b/include/asm-sh64/unistd.h @@ -347,8 +347,10 @@ #ifdef __KERNEL__ #define NR_syscalls 321 +#include -/* user-visible error numbers are in the range -1 - -125: see */ +/* user-visible error numbers are in the range -1 - -MAX_ERRNO: + * see */ #define __syscall_return(type, res) \ do { \ @@ -358,7 +360,7 @@ do { \ ** life easier in the system call epilogue (see entry.S) \ */ \ register unsigned long __sr2 __asm__ ("r2") = res; \ - if ((unsigned long)(res) >= (unsigned long)(-125)) { \ + if ((unsigned long)(res) >= (unsigned long)(-MAX_ERRNO)) { \ errno = -(res); \ __sr2 = -1; \ } \ diff --git a/include/asm-v850/unistd.h b/include/asm-v850/unistd.h index bcb44bfe577a..552b7c873a57 100644 --- a/include/asm-v850/unistd.h +++ b/include/asm-v850/unistd.h @@ -238,12 +238,13 @@ #ifdef __KERNEL__ #include +#include #define __syscall_return(type, res) \ do { \ - /* user-visible error numbers are in the range -1 - -124: \ + /* user-visible error numbers are in the range -1 - -MAX_ERRNO: \ see */ \ - if (__builtin_expect ((unsigned long)(res) >= (unsigned long)(-125), 0)) { \ + if (__builtin_expect ((unsigned long)(res) >= (unsigned long)(-MAX_ERRNO), 0)) { \ errno = -(res); \ res = -1; \ } \ diff --git a/include/asm-x86_64/unistd.h b/include/asm-x86_64/unistd.h index eeb98c168e98..6137146516d3 100644 --- a/include/asm-x86_64/unistd.h +++ b/include/asm-x86_64/unistd.h @@ -623,16 +623,17 @@ __SYSCALL(__NR_move_pages, sys_move_pages) #ifdef __KERNEL__ #define __NR_syscall_max __NR_move_pages +#include #ifndef __NO_STUBS -/* user-visible error numbers are in the range -1 - -4095 */ +/* user-visible error numbers are in the range -1 - -MAX_ERRNO */ #define __syscall_clobber "r11","rcx","memory" #define __syscall_return(type, res) \ do { \ - if ((unsigned long)(res) >= (unsigned long)(-127)) { \ + if ((unsigned long)(res) >= (unsigned long)(-MAX_ERRNO)) { \ errno = -(res); \ res = -1; \ } \ diff --git a/include/linux/err.h b/include/linux/err.h index cd3b367f7445..1ab1d44f8d3b 100644 --- a/include/linux/err.h +++ b/include/linux/err.h @@ -15,6 +15,8 @@ */ #define MAX_ERRNO 4095 +#ifndef __ASSEMBLY__ + #define IS_ERR_VALUE(x) unlikely((x) >= (unsigned long)-MAX_ERRNO) static inline void *ERR_PTR(long error) @@ -32,4 +34,6 @@ static inline long IS_ERR(const void *ptr) return IS_ERR_VALUE((unsigned long)ptr); } +#endif + #endif /* _LINUX_ERR_H */ -- cgit v1.2.3 From 07563c711fbc25389e58ab9c9f0b9de2fce56760 Mon Sep 17 00:00:00 2001 From: Michael Tokarev Date: Wed, 27 Sep 2006 01:50:56 -0700 Subject: [PATCH] EISA bus MODALIAS attributes support Add modalias attribute support for the almost forgotten now EISA bus and (at least some) EISA-aware modules. The modalias entry looks like (for an 3c509 NIC): eisa:sTCM5093 and the in-module alias like: eisa:sTCM5093* The patch moves struct eisa_device_id declaration from include/linux/eisa.h to include/linux/mod_devicetable.h (so that the former now #includes the latter), adds proper MODULE_DEVICE_TABLE(eisa, ...) statements for all drivers with EISA IDs I found (some drivers already have that DEVICE_TABLE declared), and adds recognision of __mod_eisa_device_table to scripts/mod/file2alias.c so that proper modules.alias will be generated. There's no support for /lib/modules/$kver/modules.eisamap, as it's not used by any existing tools, and because with in-kernel modalias mechanism those maps are obsolete anyway. The rationale for this patch is: a) to make EISA bus to act as other busses with modalias support, to unify driver loading b) to foget about EISA finally - with this patch, kernel (who still supports EISA) will be the only one who knows how to choose the necessary drivers for this bus ;) [akpm@osdl.org: fix the kbuild bit] Signed-off-by: Michael Tokarev Cc: Rusty Russell Cc: Randy Dunlap Acked-the-net-bits-by: Jeff Garzik Acked-the-tulip-bit-by: Valerie Henson Cc: James Bottomley Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/eisa/eisa-bus.c | 23 +++++++++++++++++++++++ drivers/net/3c509.c | 1 + drivers/net/3c59x.c | 1 + drivers/net/ne3210.c | 1 + drivers/net/tulip/de4x5.c | 1 + drivers/scsi/aha1740.c | 1 + drivers/scsi/aic7xxx/aic7770_osm.c | 3 ++- drivers/scsi/sim710.c | 1 + include/linux/eisa.h | 8 +------- include/linux/mod_devicetable.h | 12 ++++++++++++ scripts/mod/file2alias.c | 12 ++++++++++++ 11 files changed, 56 insertions(+), 8 deletions(-) (limited to 'include') diff --git a/drivers/eisa/eisa-bus.c b/drivers/eisa/eisa-bus.c index 6078e2f58817..3a365e159d89 100644 --- a/drivers/eisa/eisa-bus.c +++ b/drivers/eisa/eisa-bus.c @@ -128,9 +128,23 @@ static int eisa_bus_match (struct device *dev, struct device_driver *drv) return 0; } +static int eisa_bus_uevent(struct device *dev, char **envp, int num_envp, + char *buffer, int buffer_size) +{ + struct eisa_device *edev = to_eisa_device(dev); + int i = 0; + int length = 0; + + add_uevent_var(envp, num_envp, &i, buffer, buffer_size, &length, + "MODALIAS=" EISA_DEVICE_MODALIAS_FMT, edev->id.sig); + envp[i] = NULL; + return 0; +} + struct bus_type eisa_bus_type = { .name = "eisa", .match = eisa_bus_match, + .uevent = eisa_bus_uevent, }; int eisa_driver_register (struct eisa_driver *edrv) @@ -160,6 +174,14 @@ static ssize_t eisa_show_state (struct device *dev, struct device_attribute *att static DEVICE_ATTR(enabled, S_IRUGO, eisa_show_state, NULL); +static ssize_t eisa_show_modalias (struct device *dev, struct device_attribute *attr, char *buf) +{ + struct eisa_device *edev = to_eisa_device (dev); + return sprintf (buf, EISA_DEVICE_MODALIAS_FMT "\n", edev->id.sig); +} + +static DEVICE_ATTR(modalias, S_IRUGO, eisa_show_modalias, NULL); + static int __init eisa_init_device (struct eisa_root_device *root, struct eisa_device *edev, int slot) @@ -209,6 +231,7 @@ static int __init eisa_register_device (struct eisa_device *edev) device_create_file (&edev->dev, &dev_attr_signature); device_create_file (&edev->dev, &dev_attr_enabled); + device_create_file (&edev->dev, &dev_attr_modalias); return 0; } diff --git a/drivers/net/3c509.c b/drivers/net/3c509.c index 59c33925be62..b936373ab2a5 100644 --- a/drivers/net/3c509.c +++ b/drivers/net/3c509.c @@ -225,6 +225,7 @@ static struct eisa_device_id el3_eisa_ids[] = { { "TCM5095" }, { "" } }; +MODULE_DEVICE_TABLE(eisa, el3_eisa_ids); static int el3_eisa_probe (struct device *device); diff --git a/drivers/net/3c59x.c b/drivers/net/3c59x.c index af301f09d674..df42e28cc80f 100644 --- a/drivers/net/3c59x.c +++ b/drivers/net/3c59x.c @@ -851,6 +851,7 @@ static struct eisa_device_id vortex_eisa_ids[] = { { "TCM5970", CH_3C597 }, { "" } }; +MODULE_DEVICE_TABLE(eisa, vortex_eisa_ids); static int vortex_eisa_probe(struct device *device); static int vortex_eisa_remove(struct device *device); diff --git a/drivers/net/ne3210.c b/drivers/net/ne3210.c index 0fa8e4d22769..d66328975425 100644 --- a/drivers/net/ne3210.c +++ b/drivers/net/ne3210.c @@ -343,6 +343,7 @@ static struct eisa_device_id ne3210_ids[] = { { "NVL1801" }, { "" }, }; +MODULE_DEVICE_TABLE(eisa, ne3210_ids); static struct eisa_driver ne3210_eisa_driver = { .id_table = ne3210_ids, diff --git a/drivers/net/tulip/de4x5.c b/drivers/net/tulip/de4x5.c index e661d0a9cc64..fb5fa7d68888 100644 --- a/drivers/net/tulip/de4x5.c +++ b/drivers/net/tulip/de4x5.c @@ -2114,6 +2114,7 @@ static struct eisa_device_id de4x5_eisa_ids[] = { { "DEC4250", 0 }, /* 0 is the board name index... */ { "" } }; +MODULE_DEVICE_TABLE(eisa, de4x5_eisa_ids); static struct eisa_driver de4x5_eisa_driver = { .id_table = de4x5_eisa_ids, diff --git a/drivers/scsi/aha1740.c b/drivers/scsi/aha1740.c index 0e4a7ebe300a..6b35ed8301e0 100644 --- a/drivers/scsi/aha1740.c +++ b/drivers/scsi/aha1740.c @@ -681,6 +681,7 @@ static struct eisa_device_id aha1740_ids[] = { { "ADP0400" }, /* 1744 */ { "" } }; +MODULE_DEVICE_TABLE(eisa, aha1740_ids); static struct eisa_driver aha1740_driver = { .id_table = aha1740_ids, diff --git a/drivers/scsi/aic7xxx/aic7770_osm.c b/drivers/scsi/aic7xxx/aic7770_osm.c index 867cbe23579b..1ac119733bac 100644 --- a/drivers/scsi/aic7xxx/aic7770_osm.c +++ b/drivers/scsi/aic7xxx/aic7770_osm.c @@ -132,7 +132,8 @@ static struct eisa_device_id aic7770_ids[] = { { "ADP7770", 5 }, /* AIC7770 generic */ { "" } }; - +MODULE_DEVICE_TABLE(eisa, aic7770_ids); + static struct eisa_driver aic7770_driver = { .id_table = aic7770_ids, .driver = { diff --git a/drivers/scsi/sim710.c b/drivers/scsi/sim710.c index b27e85428daa..551baccec523 100644 --- a/drivers/scsi/sim710.c +++ b/drivers/scsi/sim710.c @@ -282,6 +282,7 @@ static struct eisa_device_id sim710_eisa_ids[] = { { "HWP0C80" }, { "" } }; +MODULE_DEVICE_TABLE(eisa, sim710_eisa_ids); static __init int sim710_eisa_probe(struct device *dev) diff --git a/include/linux/eisa.h b/include/linux/eisa.h index 4079242dced8..1ff7c1392525 100644 --- a/include/linux/eisa.h +++ b/include/linux/eisa.h @@ -3,8 +3,8 @@ #include #include +#include -#define EISA_SIG_LEN 8 #define EISA_MAX_SLOTS 8 #define EISA_MAX_RESOURCES 4 @@ -27,12 +27,6 @@ #define EISA_CONFIG_ENABLED 1 #define EISA_CONFIG_FORCED 2 -/* The EISA signature, in ASCII form, null terminated */ -struct eisa_device_id { - char sig[EISA_SIG_LEN]; - unsigned long driver_data; -}; - /* There is not much we can say about an EISA device, apart from * signature, slot number, and base address. dma_mask is set by * default to parent device mask..*/ diff --git a/include/linux/mod_devicetable.h b/include/linux/mod_devicetable.h index f7ca0b09075d..e0c393cc7240 100644 --- a/include/linux/mod_devicetable.h +++ b/include/linux/mod_devicetable.h @@ -308,4 +308,16 @@ struct input_device_id { kernel_ulong_t driver_info; }; +/* EISA */ + +#define EISA_SIG_LEN 8 + +/* The EISA signature, in ASCII form, null terminated */ +struct eisa_device_id { + char sig[EISA_SIG_LEN]; + kernel_ulong_t driver_data; +}; + +#define EISA_DEVICE_MODALIAS_FMT "eisa:s%s" + #endif /* LINUX_MOD_DEVICETABLE_H */ diff --git a/scripts/mod/file2alias.c b/scripts/mod/file2alias.c index de76da80443f..f61c9ccef6aa 100644 --- a/scripts/mod/file2alias.c +++ b/scripts/mod/file2alias.c @@ -444,6 +444,14 @@ static int do_input_entry(const char *filename, struct input_device_id *id, return 1; } +static int do_eisa_entry(const char *filename, struct eisa_device_id *eisa, + char *alias) +{ + if (eisa->sig[0]) + sprintf(alias, EISA_DEVICE_MODALIAS_FMT "*", eisa->sig); + return 1; +} + /* Ignore any prefix, eg. v850 prepends _ */ static inline int sym_is(const char *symbol, const char *name) { @@ -547,6 +555,10 @@ void handle_moddevtable(struct module *mod, struct elf_info *info, do_table(symval, sym->st_size, sizeof(struct input_device_id), "input", do_input_entry, mod); + else if (sym_is(symname, "__mod_eisa_device_table")) + do_table(symval, sym->st_size, + sizeof(struct eisa_device_id), "eisa", + do_eisa_entry, mod); } /* Now add out buffered information to the generated C source */ -- cgit v1.2.3 From 7583ddfd3aae1007bc4fc67ea4c07d573d376e9e Mon Sep 17 00:00:00 2001 From: Marcelo Tosatti Date: Wed, 27 Sep 2006 01:51:02 -0700 Subject: [PATCH] Include __param section in read-only data range The param section is an array of "kernel_param" structures, storing only constant data: pointer to name, permission of the variable pointed to by (void *)arg and pointers to set/get methods. Move end_rodata down to include __param section in the read-only range used by CONFIG_DEBUG_RODATA. Signed-off-by: Marcelo Tosatti Acked-by: Arjan van de Ven Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-generic/vmlinux.lds.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h index 253ae1328271..69240b52f8e1 100644 --- a/include/asm-generic/vmlinux.lds.h +++ b/include/asm-generic/vmlinux.lds.h @@ -118,15 +118,15 @@ __ksymtab_strings : AT(ADDR(__ksymtab_strings) - LOAD_OFFSET) { \ *(__ksymtab_strings) \ } \ - __end_rodata = .; \ - . = ALIGN(4096); \ \ /* Built-in module parameters. */ \ __param : AT(ADDR(__param) - LOAD_OFFSET) { \ VMLINUX_SYMBOL(__start___param) = .; \ *(__param) \ VMLINUX_SYMBOL(__stop___param) = .; \ - } + } \ + __end_rodata = .; \ + . = ALIGN(4096); #define SECURITY_INIT \ .security_initcall.init : AT(ADDR(.security_initcall.init) - LOAD_OFFSET) { \ -- cgit v1.2.3 From c18258c6f0848f97e85287f6271c511a092bb784 Mon Sep 17 00:00:00 2001 From: "Eric W. Biederman" Date: Wed, 27 Sep 2006 01:51:06 -0700 Subject: [PATCH] pid: Implement transfer_pid and use it to simplify de_thread In de_thread we move pids from one process to another, a rather ugly case. The function transfer_pid makes it clear what we are doing, and makes the action atomic. This is useful we ever want to atomically traverse the process group and session lists, in a rcu safe manner. Even if the atomic properties this change should be a win as transfer_pid should be less code to execute than executing both attach_pid and detach_pid, and this should make de_thread slightly smaller as only a single function call needs to be emitted. The only downside is that the code might be slower to execute as the odds are against transfer_pid being in cache. Signed-off-by: Eric W. Biederman Cc: Oleg Nesterov Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/exec.c | 11 ++++------- include/linux/pid.h | 2 ++ kernel/pid.c | 9 +++++++++ 3 files changed, 15 insertions(+), 7 deletions(-) (limited to 'include') diff --git a/fs/exec.c b/fs/exec.c index 54135df2a966..b7aa3d6422d6 100644 --- a/fs/exec.c +++ b/fs/exec.c @@ -696,23 +696,20 @@ static int de_thread(struct task_struct *tsk) */ /* Become a process group leader with the old leader's pid. - * Note: The old leader also uses thispid until release_task + * The old leader becomes a thread of the this thread group. + * Note: The old leader also uses this pid until release_task * is called. Odd but simple and correct. */ detach_pid(current, PIDTYPE_PID); current->pid = leader->pid; attach_pid(current, PIDTYPE_PID, current->pid); - attach_pid(current, PIDTYPE_PGID, current->signal->pgrp); - attach_pid(current, PIDTYPE_SID, current->signal->session); + transfer_pid(leader, current, PIDTYPE_PGID); + transfer_pid(leader, current, PIDTYPE_SID); list_replace_rcu(&leader->tasks, ¤t->tasks); current->group_leader = current; leader->group_leader = current; - /* Reduce leader to a thread */ - detach_pid(leader, PIDTYPE_PGID); - detach_pid(leader, PIDTYPE_SID); - current->exit_signal = SIGCHLD; BUG_ON(leader->exit_state != EXIT_ZOMBIE); diff --git a/include/linux/pid.h b/include/linux/pid.h index 29960b03bef7..93da7e2d9f30 100644 --- a/include/linux/pid.h +++ b/include/linux/pid.h @@ -76,6 +76,8 @@ extern int FASTCALL(attach_pid(struct task_struct *task, enum pid_type type, int nr)); extern void FASTCALL(detach_pid(struct task_struct *task, enum pid_type)); +extern void FASTCALL(transfer_pid(struct task_struct *old, + struct task_struct *new, enum pid_type)); /* * look up a PID in the hash table. Must be called with the tasklist_lock diff --git a/kernel/pid.c b/kernel/pid.c index 93e212f20671..6db82b68e2f8 100644 --- a/kernel/pid.c +++ b/kernel/pid.c @@ -252,6 +252,15 @@ void fastcall detach_pid(struct task_struct *task, enum pid_type type) free_pid(pid); } +/* transfer_pid is an optimization of attach_pid(new), detach_pid(old) */ +void fastcall transfer_pid(struct task_struct *old, struct task_struct *new, + enum pid_type type) +{ + new->pids[type].pid = old->pids[type].pid; + hlist_replace_rcu(&old->pids[type].node, &new->pids[type].node); + old->pids[type].pid = NULL; +} + struct task_struct * fastcall pid_task(struct pid *pid, enum pid_type type) { struct task_struct *result = NULL; -- cgit v1.2.3 From 66f37509fc7191df468a8d183374f48b13bacb73 Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Wed, 27 Sep 2006 01:51:13 -0700 Subject: [PATCH] fs/nfs/: make code static Signed-off-by: Adrian Bunk Acked-by: Trond Myklebust Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/nfs/namespace.c | 12 +++++++++--- include/linux/nfs_fs.h | 4 ---- 2 files changed, 9 insertions(+), 7 deletions(-) (limited to 'include') diff --git a/fs/nfs/namespace.c b/fs/nfs/namespace.c index 77b00684894d..60408646176b 100644 --- a/fs/nfs/namespace.c +++ b/fs/nfs/namespace.c @@ -26,6 +26,11 @@ LIST_HEAD(nfs_automount_list); static DECLARE_WORK(nfs_automount_task, nfs_expire_automounts, &nfs_automount_list); int nfs_mountpoint_expiry_timeout = 500 * HZ; +static struct vfsmount *nfs_do_submount(const struct vfsmount *mnt_parent, + const struct dentry *dentry, + struct nfs_fh *fh, + struct nfs_fattr *fattr); + /* * nfs_path - reconstruct the path given an arbitrary dentry * @base - arbitrary string to prepend to the path @@ -209,9 +214,10 @@ static struct vfsmount *nfs_do_clone_mount(struct nfs_server *server, * @fattr - attributes for new root inode * */ -struct vfsmount *nfs_do_submount(const struct vfsmount *mnt_parent, - const struct dentry *dentry, struct nfs_fh *fh, - struct nfs_fattr *fattr) +static struct vfsmount *nfs_do_submount(const struct vfsmount *mnt_parent, + const struct dentry *dentry, + struct nfs_fh *fh, + struct nfs_fattr *fattr) { struct nfs_clone_mount mountdata = { .sb = mnt_parent->mnt_sb, diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h index 36f5bcf513b0..98c9b9f667a5 100644 --- a/include/linux/nfs_fs.h +++ b/include/linux/nfs_fs.h @@ -315,10 +315,6 @@ extern void nfs_end_data_update(struct inode *); extern struct nfs_open_context *get_nfs_open_context(struct nfs_open_context *ctx); extern void put_nfs_open_context(struct nfs_open_context *ctx); extern struct nfs_open_context *nfs_find_open_context(struct inode *inode, struct rpc_cred *cred, int mode); -extern struct vfsmount *nfs_do_submount(const struct vfsmount *mnt_parent, - const struct dentry *dentry, - struct nfs_fh *fh, - struct nfs_fattr *fattr); /* linux/net/ipv4/ipconfig.c: trims ip addr off front of name, too. */ extern u32 root_nfs_parse_addr(char *name); /*__init*/ -- cgit v1.2.3 From 1b79e5513d52e8533a08af35a3595dad80c74d1f Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Wed, 27 Sep 2006 01:51:14 -0700 Subject: [PATCH] add probe_kernel_address() Add a version of __get_user() which is safe to call inside mmap_sem. Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/uaccess.h | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) (limited to 'include') diff --git a/include/linux/uaccess.h b/include/linux/uaccess.h index 391e7ed1eb3f..a48d7f11c7be 100644 --- a/include/linux/uaccess.h +++ b/include/linux/uaccess.h @@ -19,4 +19,26 @@ static inline unsigned long __copy_from_user_nocache(void *to, #endif /* ARCH_HAS_NOCACHE_UACCESS */ +/** + * probe_kernel_address(): safely attempt to read from a location + * @addr: address to read from - its type is type typeof(retval)* + * @retval: read into this variable + * + * Safely read from address @addr into variable @revtal. If a kernel fault + * happens, handle that and return -EFAULT. + * We ensure that the __get_user() is executed in atomic context so that + * do_page_fault() doesn't attempt to take mmap_sem. This makes + * probe_kernel_address() suitable for use within regions where the caller + * already holds mmap_sem, or other locks which nest inside mmap_sem. + */ +#define probe_kernel_address(addr, retval) \ + ({ \ + long ret; \ + \ + inc_preempt_count(); \ + ret = __get_user(retval, addr); \ + dec_preempt_count(); \ + ret; \ + }) + #endif /* __LINUX_UACCESS_H__ */ -- cgit v1.2.3 From 3a16f7b4a75d68364c3278523f51ac141a12758a Mon Sep 17 00:00:00 2001 From: David Brownell Date: Thu, 29 Jun 2006 12:27:23 -0700 Subject: USB: move to Move to . Signed-off-by: David Brownell Signed-off-by: Greg Kroah-Hartman --- arch/arm/plat-omap/usb.c | 2 +- drivers/i2c/chips/isp1301_omap.c | 2 +- drivers/usb/gadget/omap_udc.c | 2 +- drivers/usb/host/ohci-hcd.c | 2 +- include/linux/usb/otg.h | 131 +++++++++++++++++++++++++++++++++++++++ include/linux/usb_otg.h | 131 --------------------------------------- 6 files changed, 135 insertions(+), 135 deletions(-) create mode 100644 include/linux/usb/otg.h delete mode 100644 include/linux/usb_otg.h (limited to 'include') diff --git a/arch/arm/plat-omap/usb.c b/arch/arm/plat-omap/usb.c index 9b815327b6a5..7e8096809be2 100644 --- a/arch/arm/plat-omap/usb.c +++ b/arch/arm/plat-omap/usb.c @@ -26,7 +26,7 @@ #include #include #include -#include +#include #include #include diff --git a/drivers/i2c/chips/isp1301_omap.c b/drivers/i2c/chips/isp1301_omap.c index f92505b94c61..182f04953466 100644 --- a/drivers/i2c/chips/isp1301_omap.c +++ b/drivers/i2c/chips/isp1301_omap.c @@ -30,7 +30,7 @@ #include #include #include -#include +#include #include #include diff --git a/drivers/usb/gadget/omap_udc.c b/drivers/usb/gadget/omap_udc.c index 2de9748ee673..81f0389fcc94 100644 --- a/drivers/usb/gadget/omap_udc.c +++ b/drivers/usb/gadget/omap_udc.c @@ -40,7 +40,7 @@ #include #include #include -#include +#include #include #include diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c index cbf38ae5ae76..7c3d8c60a60f 100644 --- a/drivers/usb/host/ohci-hcd.c +++ b/drivers/usb/host/ohci-hcd.c @@ -88,7 +88,7 @@ #include #include #include -#include +#include #include #include #include diff --git a/include/linux/usb/otg.h b/include/linux/usb/otg.h new file mode 100644 index 000000000000..9897f7a818c5 --- /dev/null +++ b/include/linux/usb/otg.h @@ -0,0 +1,131 @@ +// include/linux/usb/otg.h + +/* + * These APIs may be used between USB controllers. USB device drivers + * (for either host or peripheral roles) don't use these calls; they + * continue to use just usb_device and usb_gadget. + */ + + +/* OTG defines lots of enumeration states before device reset */ +enum usb_otg_state { + OTG_STATE_UNDEFINED = 0, + + /* single-role peripheral, and dual-role default-b */ + OTG_STATE_B_IDLE, + OTG_STATE_B_SRP_INIT, + OTG_STATE_B_PERIPHERAL, + + /* extra dual-role default-b states */ + OTG_STATE_B_WAIT_ACON, + OTG_STATE_B_HOST, + + /* dual-role default-a */ + OTG_STATE_A_IDLE, + OTG_STATE_A_WAIT_VRISE, + OTG_STATE_A_WAIT_BCON, + OTG_STATE_A_HOST, + OTG_STATE_A_SUSPEND, + OTG_STATE_A_PERIPHERAL, + OTG_STATE_A_WAIT_VFALL, + OTG_STATE_A_VBUS_ERR, +}; + +/* + * the otg driver needs to interact with both device side and host side + * usb controllers. it decides which controller is active at a given + * moment, using the transceiver, ID signal, HNP and sometimes static + * configuration information (including "board isn't wired for otg"). + */ +struct otg_transceiver { + struct device *dev; + const char *label; + + u8 default_a; + enum usb_otg_state state; + + struct usb_bus *host; + struct usb_gadget *gadget; + + /* to pass extra port status to the root hub */ + u16 port_status; + u16 port_change; + + /* bind/unbind the host controller */ + int (*set_host)(struct otg_transceiver *otg, + struct usb_bus *host); + + /* bind/unbind the peripheral controller */ + int (*set_peripheral)(struct otg_transceiver *otg, + struct usb_gadget *gadget); + + /* effective for B devices, ignored for A-peripheral */ + int (*set_power)(struct otg_transceiver *otg, + unsigned mA); + + /* for non-OTG B devices: set transceiver into suspend mode */ + int (*set_suspend)(struct otg_transceiver *otg, + int suspend); + + /* for B devices only: start session with A-Host */ + int (*start_srp)(struct otg_transceiver *otg); + + /* start or continue HNP role switch */ + int (*start_hnp)(struct otg_transceiver *otg); + +}; + + +/* for board-specific init logic */ +extern int otg_set_transceiver(struct otg_transceiver *); + + +/* for usb host and peripheral controller drivers */ +extern struct otg_transceiver *otg_get_transceiver(void); + +static inline int +otg_start_hnp(struct otg_transceiver *otg) +{ + return otg->start_hnp(otg); +} + + +/* for HCDs */ +static inline int +otg_set_host(struct otg_transceiver *otg, struct usb_bus *host) +{ + return otg->set_host(otg, host); +} + + +/* for usb peripheral controller drivers */ +static inline int +otg_set_peripheral(struct otg_transceiver *otg, struct usb_gadget *periph) +{ + return otg->set_peripheral(otg, periph); +} + +static inline int +otg_set_power(struct otg_transceiver *otg, unsigned mA) +{ + return otg->set_power(otg, mA); +} + +static inline int +otg_set_suspend(struct otg_transceiver *otg, int suspend) +{ + if (otg->set_suspend != NULL) + return otg->set_suspend(otg, suspend); + else + return 0; +} + +static inline int +otg_start_srp(struct otg_transceiver *otg) +{ + return otg->start_srp(otg); +} + + +/* for OTG controller drivers (and maybe other stuff) */ +extern int usb_bus_start_enum(struct usb_bus *bus, unsigned port_num); diff --git a/include/linux/usb_otg.h b/include/linux/usb_otg.h deleted file mode 100644 index f827f6e203c2..000000000000 --- a/include/linux/usb_otg.h +++ /dev/null @@ -1,131 +0,0 @@ -// include/linux/usb_otg.h - -/* - * These APIs may be used between USB controllers. USB device drivers - * (for either host or peripheral roles) don't use these calls; they - * continue to use just usb_device and usb_gadget. - */ - - -/* OTG defines lots of enumeration states before device reset */ -enum usb_otg_state { - OTG_STATE_UNDEFINED = 0, - - /* single-role peripheral, and dual-role default-b */ - OTG_STATE_B_IDLE, - OTG_STATE_B_SRP_INIT, - OTG_STATE_B_PERIPHERAL, - - /* extra dual-role default-b states */ - OTG_STATE_B_WAIT_ACON, - OTG_STATE_B_HOST, - - /* dual-role default-a */ - OTG_STATE_A_IDLE, - OTG_STATE_A_WAIT_VRISE, - OTG_STATE_A_WAIT_BCON, - OTG_STATE_A_HOST, - OTG_STATE_A_SUSPEND, - OTG_STATE_A_PERIPHERAL, - OTG_STATE_A_WAIT_VFALL, - OTG_STATE_A_VBUS_ERR, -}; - -/* - * the otg driver needs to interact with both device side and host side - * usb controllers. it decides which controller is active at a given - * moment, using the transceiver, ID signal, HNP and sometimes static - * configuration information (including "board isn't wired for otg"). - */ -struct otg_transceiver { - struct device *dev; - const char *label; - - u8 default_a; - enum usb_otg_state state; - - struct usb_bus *host; - struct usb_gadget *gadget; - - /* to pass extra port status to the root hub */ - u16 port_status; - u16 port_change; - - /* bind/unbind the host controller */ - int (*set_host)(struct otg_transceiver *otg, - struct usb_bus *host); - - /* bind/unbind the peripheral controller */ - int (*set_peripheral)(struct otg_transceiver *otg, - struct usb_gadget *gadget); - - /* effective for B devices, ignored for A-peripheral */ - int (*set_power)(struct otg_transceiver *otg, - unsigned mA); - - /* for non-OTG B devices: set transceiver into suspend mode */ - int (*set_suspend)(struct otg_transceiver *otg, - int suspend); - - /* for B devices only: start session with A-Host */ - int (*start_srp)(struct otg_transceiver *otg); - - /* start or continue HNP role switch */ - int (*start_hnp)(struct otg_transceiver *otg); - -}; - - -/* for board-specific init logic */ -extern int otg_set_transceiver(struct otg_transceiver *); - - -/* for usb host and peripheral controller drivers */ -extern struct otg_transceiver *otg_get_transceiver(void); - -static inline int -otg_start_hnp(struct otg_transceiver *otg) -{ - return otg->start_hnp(otg); -} - - -/* for HCDs */ -static inline int -otg_set_host(struct otg_transceiver *otg, struct usb_bus *host) -{ - return otg->set_host(otg, host); -} - - -/* for usb peripheral controller drivers */ -static inline int -otg_set_peripheral(struct otg_transceiver *otg, struct usb_gadget *periph) -{ - return otg->set_peripheral(otg, periph); -} - -static inline int -otg_set_power(struct otg_transceiver *otg, unsigned mA) -{ - return otg->set_power(otg, mA); -} - -static inline int -otg_set_suspend(struct otg_transceiver *otg, int suspend) -{ - if (otg->set_suspend != NULL) - return otg->set_suspend(otg, suspend); - else - return 0; -} - -static inline int -otg_start_srp(struct otg_transceiver *otg) -{ - return otg->start_srp(otg); -} - - -/* for OTG controller drivers (and maybe other stuff) */ -extern int usb_bus_start_enum(struct usb_bus *bus, unsigned port_num); -- cgit v1.2.3 From b2bbb20b37d734443d1c279d0033a64f6095db54 Mon Sep 17 00:00:00 2001 From: David Brownell Date: Thu, 29 Jun 2006 12:25:39 -0700 Subject: USB: pxa2xx_udc understands GPIO based VBUS sensing This updates the PXA 25x UDC board-independent infrastructure for VBUS sensing and the D+ pullup. The original code evolved from rather bizarre support on Intel's "Lubbock" reference hardware, so that on more sensible hardware it doesn't work as well as it could/should. The change is just to teach the UDC driver how to use built-in PXA GPIO pins directly. This reduces the amount of board-specfic object code needed, and enables the use of a VBUS sensing IRQ on boards (like Gumstix) that have one. With VBUS sensing, the UDC is unclocked until a host is actually connected. Signed-off-by: David Brownell Signed-off-by: Greg Kroah-Hartman --- arch/arm/mach-pxa/corgi.c | 15 +-------- drivers/usb/gadget/pxa2xx_udc.c | 70 +++++++++++++++++++++++++++++++++++++++-- drivers/usb/gadget/pxa2xx_udc.h | 24 +++++--------- include/asm-arm/arch-pxa/udc.h | 8 +++++ 4 files changed, 85 insertions(+), 32 deletions(-) (limited to 'include') diff --git a/arch/arm/mach-pxa/corgi.c b/arch/arm/mach-pxa/corgi.c index cce26576999e..337c01c4ac37 100644 --- a/arch/arm/mach-pxa/corgi.c +++ b/arch/arm/mach-pxa/corgi.c @@ -284,21 +284,9 @@ static struct pxaficp_platform_data corgi_ficp_platform_data = { /* * USB Device Controller */ -static void corgi_udc_command(int cmd) -{ - switch(cmd) { - case PXA2XX_UDC_CMD_CONNECT: - GPSR(CORGI_GPIO_USB_PULLUP) = GPIO_bit(CORGI_GPIO_USB_PULLUP); - break; - case PXA2XX_UDC_CMD_DISCONNECT: - GPCR(CORGI_GPIO_USB_PULLUP) = GPIO_bit(CORGI_GPIO_USB_PULLUP); - break; - } -} - static struct pxa2xx_udc_mach_info udc_info __initdata = { /* no connect GPIO; corgi can't tell connection status */ - .udc_command = corgi_udc_command, + .gpio_pullup = CORGI_GPIO_USB_PULLUP, }; @@ -350,7 +338,6 @@ static void __init corgi_init(void) corgi_ssp_set_machinfo(&corgi_ssp_machinfo); pxa_gpio_mode(CORGI_GPIO_IR_ON | GPIO_OUT); - pxa_gpio_mode(CORGI_GPIO_USB_PULLUP | GPIO_OUT); pxa_gpio_mode(CORGI_GPIO_HSYNC | GPIO_IN); pxa_set_udc_info(&udc_info); diff --git a/drivers/usb/gadget/pxa2xx_udc.c b/drivers/usb/gadget/pxa2xx_udc.c index fff027d30a09..f1adcf8b2023 100644 --- a/drivers/usb/gadget/pxa2xx_udc.c +++ b/drivers/usb/gadget/pxa2xx_udc.c @@ -150,6 +150,39 @@ MODULE_PARM_DESC (fifo_mode, "pxa2xx udc fifo mode"); static void pxa2xx_ep_fifo_flush (struct usb_ep *ep); static void nuke (struct pxa2xx_ep *, int status); +/* one GPIO should be used to detect VBUS from the host */ +static int is_vbus_present(void) +{ + struct pxa2xx_udc_mach_info *mach = the_controller->mach; + + if (mach->gpio_vbus) + return pxa_gpio_get(mach->gpio_vbus); + if (mach->udc_is_connected) + return mach->udc_is_connected(); + return 1; +} + +/* one GPIO should control a D+ pullup, so host sees this device (or not) */ +static void pullup_off(void) +{ + struct pxa2xx_udc_mach_info *mach = the_controller->mach; + + if (mach->gpio_pullup) + pxa_gpio_set(mach->gpio_pullup, 0); + else if (mach->udc_command) + mach->udc_command(PXA2XX_UDC_CMD_DISCONNECT); +} + +static void pullup_on(void) +{ + struct pxa2xx_udc_mach_info *mach = the_controller->mach; + + if (mach->gpio_pullup) + pxa_gpio_set(mach->gpio_pullup, 1); + else if (mach->udc_command) + mach->udc_command(PXA2XX_UDC_CMD_CONNECT); +} + static void pio_irq_enable(int bEndpointAddress) { bEndpointAddress &= 0xf; @@ -1721,6 +1754,16 @@ lubbock_vbus_irq(int irq, void *_dev, struct pt_regs *r) #endif +static irqreturn_t +udc_vbus_irq(int irq, void *_dev, struct pt_regs *r) +{ + struct pxa2xx_udc *dev = _dev; + int vbus = pxa_gpio_get(dev->mach->gpio_vbus); + + pxa2xx_udc_vbus_session(&dev->gadget, vbus); + return IRQ_HANDLED; +} + /*-------------------------------------------------------------------------*/ @@ -2438,7 +2481,7 @@ static struct pxa2xx_udc memory = { static int __init pxa2xx_udc_probe(struct platform_device *pdev) { struct pxa2xx_udc *dev = &memory; - int retval, out_dma = 1; + int retval, out_dma = 1, vbus_irq; u32 chiprev; /* insist on Intel/ARM/XScale */ @@ -2502,6 +2545,16 @@ static int __init pxa2xx_udc_probe(struct platform_device *pdev) /* other non-static parts of init */ dev->dev = &pdev->dev; dev->mach = pdev->dev.platform_data; + if (dev->mach->gpio_vbus) { + vbus_irq = IRQ_GPIO(dev->mach->gpio_vbus & GPIO_MD_MASK_NR); + pxa_gpio_mode((dev->mach->gpio_vbus & GPIO_MD_MASK_NR) + | GPIO_IN); + set_irq_type(vbus_irq, IRQT_BOTHEDGE); + } else + vbus_irq = 0; + if (dev->mach->gpio_pullup) + pxa_gpio_mode((dev->mach->gpio_pullup & GPIO_MD_MASK_NR) + | GPIO_OUT | GPIO_DFLT_LOW); init_timer(&dev->timer); dev->timer.function = udc_watchdog; @@ -2557,8 +2610,19 @@ lubbock_fail0: HEX_DISPLAY(dev->stats.irqs); LUB_DISC_BLNK_LED &= 0xff; #endif - } + } else #endif + if (vbus_irq) { + retval = request_irq(vbus_irq, udc_vbus_irq, + SA_INTERRUPT | SA_SAMPLE_RANDOM, + driver_name, dev); + if (retval != 0) { + printk(KERN_ERR "%s: can't get irq %i, err %d\n", + driver_name, vbus_irq, retval); + free_irq(IRQ_USB, dev); + return -EBUSY; + } + } create_proc_files(); return 0; @@ -2587,6 +2651,8 @@ static int __exit pxa2xx_udc_remove(struct platform_device *pdev) free_irq(LUBBOCK_USB_IRQ, dev); } #endif + if (dev->mach->gpio_vbus) + free_irq(IRQ_GPIO(dev->mach->gpio_vbus), dev); platform_set_drvdata(pdev, NULL); the_controller = NULL; return 0; diff --git a/drivers/usb/gadget/pxa2xx_udc.h b/drivers/usb/gadget/pxa2xx_udc.h index 19a883f7d1b8..8e598c8bf4e3 100644 --- a/drivers/usb/gadget/pxa2xx_udc.h +++ b/drivers/usb/gadget/pxa2xx_udc.h @@ -177,27 +177,19 @@ struct pxa2xx_udc { static struct pxa2xx_udc *the_controller; -/* one GPIO should be used to detect VBUS from the host */ -static inline int is_vbus_present(void) +static inline int pxa_gpio_get(unsigned gpio) { - if (!the_controller->mach->udc_is_connected) - return 1; - return the_controller->mach->udc_is_connected(); + return (GPLR(gpio) & GPIO_bit(gpio)) != 0; } -/* one GPIO should control a D+ pullup, so host sees this device (or not) */ -static inline void pullup_off(void) +static inline void pxa_gpio_set(unsigned gpio, int is_on) { - if (!the_controller->mach->udc_command) - return; - the_controller->mach->udc_command(PXA2XX_UDC_CMD_DISCONNECT); -} + int mask = GPIO_bit(gpio); -static inline void pullup_on(void) -{ - if (!the_controller->mach->udc_command) - return; - the_controller->mach->udc_command(PXA2XX_UDC_CMD_CONNECT); + if (is_on) + GPSR(gpio) = mask; + else + GPCR(gpio) = mask; } /*-------------------------------------------------------------------------*/ diff --git a/include/asm-arm/arch-pxa/udc.h b/include/asm-arm/arch-pxa/udc.h index 30548a30c773..121cd241115d 100644 --- a/include/asm-arm/arch-pxa/udc.h +++ b/include/asm-arm/arch-pxa/udc.h @@ -12,6 +12,14 @@ struct pxa2xx_udc_mach_info { void (*udc_command)(int cmd); #define PXA2XX_UDC_CMD_CONNECT 0 /* let host see us */ #define PXA2XX_UDC_CMD_DISCONNECT 1 /* so host won't see us */ + + /* Boards following the design guidelines in the developer's manual, + * with on-chip GPIOs not Lubbock's wierd hardware, can have a sane + * VBUS IRQ and omit the methods above. Store the GPIO number + * here; for GPIO 0, also mask in one of the pxa_gpio_mode() bits. + */ + u16 gpio_vbus; /* high == vbus present */ + u16 gpio_pullup; /* high == pullup activated */ }; extern void pxa_set_udc_info(struct pxa2xx_udc_mach_info *info); -- cgit v1.2.3 From 8bb54ab573ecd1b4fe2ed66416a8d99a86e65316 Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Sat, 1 Jul 2006 22:08:49 -0400 Subject: usbcore: add usb_device_driver definition This patch (as732) adds a usb_device_driver structure, for representing drivers that manage an entire USB device as opposed to just an interface. Support routines like usb_register_device_driver, usb_deregister_device_driver, usb_probe_device, and usb_unbind_device are also added. Unlike an earlier version of this patch, the new code is type-safe. To accomplish this, the existing struct driver embedded in struct usb_driver had to be wrapped in an intermediate wrapper. This enables the core to tell at runtime whether a particular struct driver belongs to a device driver or to an interface driver. Signed-off-by: Alan Stern Signed-off-by: Greg Kroah-Hartman --- drivers/usb/core/driver.c | 219 +++++++++++++++++++++++++++++++++------------ drivers/usb/core/generic.c | 17 +--- drivers/usb/core/usb.c | 15 ++-- drivers/usb/core/usb.h | 20 ++++- include/linux/usb.h | 58 ++++++++++-- 5 files changed, 245 insertions(+), 84 deletions(-) (limited to 'include') diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c index 8dcf2cd0c569..0d4b5dcee3ab 100644 --- a/drivers/usb/core/driver.c +++ b/drivers/usb/core/driver.c @@ -84,7 +84,7 @@ static int usb_create_newid_file(struct usb_driver *usb_drv) goto exit; if (usb_drv->probe != NULL) - error = sysfs_create_file(&usb_drv->driver.kobj, + error = sysfs_create_file(&usb_drv->drvwrap.driver.kobj, &driver_attr_new_id.attr); exit: return error; @@ -96,7 +96,7 @@ static void usb_remove_newid_file(struct usb_driver *usb_drv) return; if (usb_drv->probe != NULL) - sysfs_remove_file(&usb_drv->driver.kobj, + sysfs_remove_file(&usb_drv->drvwrap.driver.kobj, &driver_attr_new_id.attr); } @@ -143,18 +143,55 @@ static const struct usb_device_id *usb_match_dynamic_id(struct usb_interface *in } -/* called from driver core with usb_bus_type.subsys writelock */ +/* called from driver core with dev locked */ +static int usb_probe_device(struct device *dev) +{ + struct usb_device_driver *udriver = to_usb_device_driver(dev->driver); + struct usb_device *udev; + int error = -ENODEV; + + dev_dbg(dev, "%s\n", __FUNCTION__); + + if (!is_usb_device(dev)) /* Sanity check */ + return error; + + udev = to_usb_device(dev); + + /* FIXME: resume a suspended device */ + if (udev->state == USB_STATE_SUSPENDED) + return -EHOSTUNREACH; + + /* TODO: Add real matching code */ + + error = udriver->probe(udev); + return error; +} + +/* called from driver core with dev locked */ +static int usb_unbind_device(struct device *dev) +{ + struct usb_device_driver *udriver = to_usb_device_driver(dev->driver); + + udriver->disconnect(to_usb_device(dev)); + return 0; +} + + +/* called from driver core with dev locked */ static int usb_probe_interface(struct device *dev) { - struct usb_interface * intf = to_usb_interface(dev); - struct usb_driver * driver = to_usb_driver(dev->driver); + struct usb_driver *driver = to_usb_driver(dev->driver); + struct usb_interface *intf; const struct usb_device_id *id; int error = -ENODEV; dev_dbg(dev, "%s\n", __FUNCTION__); - if (!driver->probe) + if (is_usb_device(dev)) /* Sanity check */ return error; + + intf = to_usb_interface(dev); + /* FIXME we'd much prefer to just resume it ... */ if (interface_to_usbdev(intf)->state == USB_STATE_SUSPENDED) return -EHOSTUNREACH; @@ -182,19 +219,18 @@ static int usb_probe_interface(struct device *dev) return error; } -/* called from driver core with usb_bus_type.subsys writelock */ +/* called from driver core with dev locked */ static int usb_unbind_interface(struct device *dev) { + struct usb_driver *driver = to_usb_driver(dev->driver); struct usb_interface *intf = to_usb_interface(dev); - struct usb_driver *driver = to_usb_driver(intf->dev.driver); intf->condition = USB_INTERFACE_UNBINDING; /* release all urbs for this interface */ usb_disable_interface(interface_to_usbdev(intf), intf); - if (driver && driver->disconnect) - driver->disconnect(intf); + driver->disconnect(intf); /* reset other interface state */ usb_set_interface(interface_to_usbdev(intf), @@ -235,7 +271,7 @@ int usb_driver_claim_interface(struct usb_driver *driver, if (dev->driver) return -EBUSY; - dev->driver = &driver->driver; + dev->driver = &driver->drvwrap.driver; usb_set_intfdata(iface, priv); iface->condition = USB_INTERFACE_BOUND; mark_active(iface); @@ -270,7 +306,7 @@ void usb_driver_release_interface(struct usb_driver *driver, struct device *dev = &iface->dev; /* this should never happen, don't release something that's not ours */ - if (!dev->driver || dev->driver != &driver->driver) + if (!dev->driver || dev->driver != &driver->drvwrap.driver) return; /* don't release from within disconnect() */ @@ -433,24 +469,37 @@ EXPORT_SYMBOL_GPL_FUTURE(usb_match_id); int usb_device_match(struct device *dev, struct device_driver *drv) { - struct usb_interface *intf; - struct usb_driver *usb_drv; - const struct usb_device_id *id; - - /* check for generic driver, which we don't match any device with */ - if (drv == &usb_generic_driver) - return 0; + /* devices and interfaces are handled separately */ + if (is_usb_device(dev)) { - intf = to_usb_interface(dev); - usb_drv = to_usb_driver(drv); + /* interface drivers never match devices */ + if (!is_usb_device_driver(drv)) + return 0; - id = usb_match_id(intf, usb_drv->id_table); - if (id) + /* TODO: Add real matching code */ return 1; - id = usb_match_dynamic_id(intf, usb_drv); - if (id) - return 1; + } else { + struct usb_interface *intf; + struct usb_driver *usb_drv; + const struct usb_device_id *id; + + /* device drivers never match interfaces */ + if (is_usb_device_driver(drv)) + return 0; + + intf = to_usb_interface(dev); + usb_drv = to_usb_driver(drv); + + id = usb_match_id(intf, usb_drv->id_table); + if (id) + return 1; + + id = usb_match_dynamic_id(intf, usb_drv); + if (id) + return 1; + } + return 0; } @@ -481,14 +530,13 @@ static int usb_uevent(struct device *dev, char **envp, int num_envp, /* driver is often null here; dev_dbg() would oops */ pr_debug ("usb %s: uevent\n", dev->bus_id); - /* Must check driver_data here, as on remove driver is always NULL */ - if ((dev->driver == &usb_generic_driver) || - (dev->driver_data == &usb_generic_driver_data)) + if (is_usb_device(dev)) return 0; - - intf = to_usb_interface(dev); - usb_dev = interface_to_usbdev (intf); - alt = intf->cur_altsetting; + else { + intf = to_usb_interface(dev); + usb_dev = interface_to_usbdev(intf); + alt = intf->cur_altsetting; + } if (usb_dev->devnum < 0) { pr_debug ("usb %s: already deleted?\n", dev->bus_id); @@ -569,13 +617,71 @@ static int usb_uevent(struct device *dev, char **envp, #endif /* CONFIG_HOTPLUG */ /** - * usb_register_driver - register a USB driver - * @new_driver: USB operations for the driver + * usb_register_device_driver - register a USB device (not interface) driver + * @new_udriver: USB operations for the device driver * @owner: module owner of this driver. * - * Registers a USB driver with the USB core. The list of unattached - * interfaces will be rescanned whenever a new driver is added, allowing - * the new driver to attach to any recognized devices. + * Registers a USB device driver with the USB core. The list of + * unattached devices will be rescanned whenever a new driver is + * added, allowing the new driver to attach to any recognized devices. + * Returns a negative error code on failure and 0 on success. + */ +int usb_register_device_driver(struct usb_device_driver *new_udriver, + struct module *owner) +{ + int retval = 0; + + if (usb_disabled()) + return -ENODEV; + + new_udriver->drvwrap.for_devices = 1; + new_udriver->drvwrap.driver.name = (char *) new_udriver->name; + new_udriver->drvwrap.driver.bus = &usb_bus_type; + new_udriver->drvwrap.driver.probe = usb_probe_device; + new_udriver->drvwrap.driver.remove = usb_unbind_device; + new_udriver->drvwrap.driver.owner = owner; + + retval = driver_register(&new_udriver->drvwrap.driver); + + if (!retval) { + pr_info("%s: registered new device driver %s\n", + usbcore_name, new_udriver->name); + usbfs_update_special(); + } else { + printk(KERN_ERR "%s: error %d registering device " + " driver %s\n", + usbcore_name, retval, new_udriver->name); + } + + return retval; +} +EXPORT_SYMBOL_GPL(usb_register_device_driver); + +/** + * usb_deregister_device_driver - unregister a USB device (not interface) driver + * @udriver: USB operations of the device driver to unregister + * Context: must be able to sleep + * + * Unlinks the specified driver from the internal USB driver list. + */ +void usb_deregister_device_driver(struct usb_device_driver *udriver) +{ + pr_info("%s: deregistering device driver %s\n", + usbcore_name, udriver->name); + + driver_unregister(&udriver->drvwrap.driver); + usbfs_update_special(); +} +EXPORT_SYMBOL_GPL(usb_deregister_device_driver); + +/** + * usb_register_driver - register a USB interface driver + * @new_driver: USB operations for the interface driver + * @owner: module owner of this driver. + * + * Registers a USB interface driver with the USB core. The list of + * unattached interfaces will be rescanned whenever a new driver is + * added, allowing the new driver to attach to any recognized interfaces. * Returns a negative error code on failure and 0 on success. * * NOTE: if you want your driver to use the USB major number, you must call @@ -589,23 +695,25 @@ int usb_register_driver(struct usb_driver *new_driver, struct module *owner) if (usb_disabled()) return -ENODEV; - new_driver->driver.name = (char *)new_driver->name; - new_driver->driver.bus = &usb_bus_type; - new_driver->driver.probe = usb_probe_interface; - new_driver->driver.remove = usb_unbind_interface; - new_driver->driver.owner = owner; + new_driver->drvwrap.for_devices = 0; + new_driver->drvwrap.driver.name = (char *) new_driver->name; + new_driver->drvwrap.driver.bus = &usb_bus_type; + new_driver->drvwrap.driver.probe = usb_probe_interface; + new_driver->drvwrap.driver.remove = usb_unbind_interface; + new_driver->drvwrap.driver.owner = owner; spin_lock_init(&new_driver->dynids.lock); INIT_LIST_HEAD(&new_driver->dynids.list); - retval = driver_register(&new_driver->driver); + retval = driver_register(&new_driver->drvwrap.driver); if (!retval) { - pr_info("%s: registered new driver %s\n", + pr_info("%s: registered new interface driver %s\n", usbcore_name, new_driver->name); usbfs_update_special(); usb_create_newid_file(new_driver); } else { - printk(KERN_ERR "%s: error %d registering driver %s\n", + printk(KERN_ERR "%s: error %d registering interface " + " driver %s\n", usbcore_name, retval, new_driver->name); } @@ -614,8 +722,8 @@ int usb_register_driver(struct usb_driver *new_driver, struct module *owner) EXPORT_SYMBOL_GPL_FUTURE(usb_register_driver); /** - * usb_deregister - unregister a USB driver - * @driver: USB operations of the driver to unregister + * usb_deregister - unregister a USB interface driver + * @driver: USB operations of the interface driver to unregister * Context: must be able to sleep * * Unlinks the specified driver from the internal USB driver list. @@ -626,11 +734,12 @@ EXPORT_SYMBOL_GPL_FUTURE(usb_register_driver); */ void usb_deregister(struct usb_driver *driver) { - pr_info("%s: deregistering driver %s\n", usbcore_name, driver->name); + pr_info("%s: deregistering interface driver %s\n", + usbcore_name, driver->name); usb_remove_newid_file(driver); usb_free_dynids(driver); - driver_unregister(&driver->driver); + driver_unregister(&driver->drvwrap.driver); usbfs_update_special(); } @@ -655,7 +764,7 @@ static int usb_generic_suspend(struct device *dev, pm_message_t message) * marked for FREEZE as soon as their children are already idled. * But those semantics are useless, so we equate the two (sigh). */ - if (dev->driver == &usb_generic_driver) { + if (is_usb_device(dev)) { if (dev->power.power_state.event == message.event) return 0; /* we need to rule out bogus requests through sysfs */ @@ -665,8 +774,7 @@ static int usb_generic_suspend(struct device *dev, pm_message_t message) return usb_port_suspend(to_usb_device(dev)); } - if ((dev->driver == NULL) || - (dev->driver_data == &usb_generic_driver_data)) + if (dev->driver == NULL) return 0; intf = to_usb_interface(dev); @@ -705,15 +813,14 @@ static int usb_generic_resume(struct device *dev) dev->power.power_state.event = PM_EVENT_ON; /* devices resume through their hubs */ - if (dev->driver == &usb_generic_driver) { + if (is_usb_device(dev)) { udev = to_usb_device(dev); if (udev->state == USB_STATE_NOTATTACHED) return 0; return usb_port_resume(udev); } - if ((dev->driver == NULL) || - (dev->driver_data == &usb_generic_driver_data)) { + if (dev->driver == NULL) { dev->power.power_state.event = PM_EVENT_FREEZE; return 0; } diff --git a/drivers/usb/core/generic.c b/drivers/usb/core/generic.c index 7bab9769b34f..fa6f34a12b4b 100644 --- a/drivers/usb/core/generic.c +++ b/drivers/usb/core/generic.c @@ -21,14 +21,12 @@ #include #include "usb.h" -static int generic_probe(struct device *dev) +static int generic_probe(struct usb_device *udev) { return 0; } -static int generic_remove(struct device *dev) +static void generic_disconnect(struct usb_device *udev) { - struct usb_device *udev = to_usb_device(dev); - /* if this is only an unbind, not a physical disconnect, then * unconfigure the device */ if (udev->state == USB_STATE_CONFIGURED) @@ -37,17 +35,10 @@ static int generic_remove(struct device *dev) /* in case the call failed or the device was suspended */ if (udev->state >= USB_STATE_CONFIGURED) usb_disable_device(udev, 0); - return 0; } -struct device_driver usb_generic_driver = { - .owner = THIS_MODULE, +struct usb_device_driver usb_generic_driver = { .name = "usb", - .bus = &usb_bus_type, .probe = generic_probe, - .remove = generic_remove, + .disconnect = generic_disconnect, }; - -/* Fun hack to determine if the struct device is a - * usb device or a usb interface. */ -int usb_generic_driver_data; diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c index 0b8c67bcde60..6dfbc284369b 100644 --- a/drivers/usb/core/usb.c +++ b/drivers/usb/core/usb.c @@ -123,7 +123,7 @@ static int __find_interface(struct device * dev, void * data) struct usb_interface *intf; /* can't look at usb devices, only interfaces */ - if (dev->driver == &usb_generic_driver) + if (is_usb_device(dev)) return 0; intf = to_usb_interface(dev); @@ -149,7 +149,8 @@ struct usb_interface *usb_find_interface(struct usb_driver *drv, int minor) argb.minor = minor; argb.interface = NULL; - driver_for_each_device(&drv->driver, NULL, &argb, __find_interface); + driver_for_each_device(&drv->drvwrap.driver, NULL, &argb, + __find_interface); return argb.interface; } @@ -204,11 +205,13 @@ usb_alloc_dev(struct usb_device *parent, struct usb_bus *bus, unsigned port1) device_initialize(&dev->dev); dev->dev.bus = &usb_bus_type; dev->dev.dma_mask = bus->controller->dma_mask; - dev->dev.driver_data = &usb_generic_driver_data; - dev->dev.driver = &usb_generic_driver; + dev->dev.driver = &usb_generic_driver.drvwrap.driver; dev->dev.release = usb_release_dev; dev->state = USB_STATE_ATTACHED; + /* This magic assignment distinguishes devices from interfaces */ + dev->dev.platform_data = &usb_generic_driver; + INIT_LIST_HEAD(&dev->ep0.urb_list); dev->ep0.desc.bLength = USB_DT_ENDPOINT_SIZE; dev->ep0.desc.bDescriptorType = USB_DT_ENDPOINT; @@ -838,7 +841,7 @@ static int __init usb_init(void) retval = usb_hub_init(); if (retval) goto hub_init_failed; - retval = driver_register(&usb_generic_driver); + retval = usb_register_device_driver(&usb_generic_driver, THIS_MODULE); if (!retval) goto out; @@ -868,7 +871,7 @@ static void __exit usb_exit(void) if (nousb) return; - driver_unregister(&usb_generic_driver); + usb_deregister_device_driver(&usb_generic_driver); usb_major_cleanup(); usbfs_cleanup(); usb_deregister(&usbfs_driver); diff --git a/drivers/usb/core/usb.h b/drivers/usb/core/usb.h index 82d397a6f773..1d25ccac7832 100644 --- a/drivers/usb/core/usb.h +++ b/drivers/usb/core/usb.h @@ -34,8 +34,24 @@ extern int usb_port_suspend(struct usb_device *dev); extern int usb_port_resume(struct usb_device *dev); extern struct bus_type usb_bus_type; -extern struct device_driver usb_generic_driver; -extern int usb_generic_driver_data; +extern struct usb_device_driver usb_generic_driver; + +/* Here's how we tell apart devices and interfaces. Luckily there's + * no such thing as a platform USB device, so we can steal the use + * of the platform_data field. */ + +static inline int is_usb_device(struct device *dev) +{ + return dev->platform_data == &usb_generic_driver; +} + +/* Do the same for device drivers and interface drivers. */ + +static inline int is_usb_device_driver(struct device_driver *drv) +{ + return container_of(drv, struct usbdrv_wrap, driver)-> + for_devices; +} /* Interfaces and their "power state" are owned by usbcore */ diff --git a/include/linux/usb.h b/include/linux/usb.h index d2bd0c8e0154..b4ccce6d0982 100644 --- a/include/linux/usb.h +++ b/include/linux/usb.h @@ -540,7 +540,17 @@ struct usb_dynids { }; /** - * struct usb_driver - identifies USB driver to usbcore + * struct usbdrv_wrap - wrapper for driver-model structure + * @driver: The driver-model core driver structure. + * @for_devices: Non-zero for device drivers, 0 for interface drivers. + */ +struct usbdrv_wrap { + struct device_driver driver; + int for_devices; +}; + +/** + * struct usb_driver - identifies USB interface driver to usbcore * @name: The driver name should be unique among USB drivers, * and should normally be the same as the module name. * @probe: Called to see if the driver is willing to manage a particular @@ -567,12 +577,12 @@ struct usb_dynids { * or your driver's probe function will never get called. * @dynids: used internally to hold the list of dynamically added device * ids for this driver. - * @driver: the driver model core driver structure. + * @drvwrap: Driver-model core structure wrapper. * @no_dynamic_id: if set to 1, the USB core will not allow dynamic ids to be * added to this driver by preventing the sysfs file from being created. * - * USB drivers must provide a name, probe() and disconnect() methods, - * and an id_table. Other driver fields are optional. + * USB interface drivers must provide a name, probe() and disconnect() + * methods, and an id_table. Other driver fields are optional. * * The id_table is used in hotplugging. It holds a set of descriptors, * and specialized data may be associated with each entry. That table @@ -606,10 +616,40 @@ struct usb_driver { const struct usb_device_id *id_table; struct usb_dynids dynids; - struct device_driver driver; + struct usbdrv_wrap drvwrap; unsigned int no_dynamic_id:1; }; -#define to_usb_driver(d) container_of(d, struct usb_driver, driver) +#define to_usb_driver(d) container_of(d, struct usb_driver, drvwrap.driver) + +/** + * struct usb_device_driver - identifies USB device driver to usbcore + * @name: The driver name should be unique among USB drivers, + * and should normally be the same as the module name. + * @probe: Called to see if the driver is willing to manage a particular + * device. If it is, probe returns zero and uses dev_set_drvdata() + * to associate driver-specific data with the device. If unwilling + * to manage the device, return a negative errno value. + * @disconnect: Called when the device is no longer accessible, usually + * because it has been (or is being) disconnected or the driver's + * module is being unloaded. + * @suspend: Called when the device is going to be suspended by the system. + * @resume: Called when the device is being resumed by the system. + * @drvwrap: Driver-model core structure wrapper. + * + * USB drivers must provide all the fields listed above except drvwrap. + */ +struct usb_device_driver { + const char *name; + + int (*probe) (struct usb_device *udev); + void (*disconnect) (struct usb_device *udev); + + int (*suspend) (struct usb_device *udev, pm_message_t message); + int (*resume) (struct usb_device *udev); + struct usbdrv_wrap drvwrap; +}; +#define to_usb_device_driver(d) container_of(d, struct usb_device_driver, \ + drvwrap.driver) extern struct bus_type usb_bus_type; @@ -633,13 +673,17 @@ struct usb_class_driver { * use these in module_init()/module_exit() * and don't forget MODULE_DEVICE_TABLE(usb, ...) */ -int usb_register_driver(struct usb_driver *, struct module *); +extern int usb_register_driver(struct usb_driver *, struct module *); static inline int usb_register(struct usb_driver *driver) { return usb_register_driver(driver, THIS_MODULE); } extern void usb_deregister(struct usb_driver *); +extern int usb_register_device_driver(struct usb_device_driver *, + struct module *); +extern void usb_deregister_device_driver(struct usb_device_driver *); + extern int usb_register_dev(struct usb_interface *intf, struct usb_class_driver *class_driver); extern void usb_deregister_dev(struct usb_interface *intf, -- cgit v1.2.3 From 4d064c080265a41324d108fccc26b72106d43db3 Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Sat, 1 Jul 2006 22:11:44 -0400 Subject: usbcore: track whether interfaces are suspended Currently we rely on intf->dev.power.power_state.event for tracking whether intf is suspended. This is not a reliable technique because that value is owned by the PM core, not by usbcore. This patch (as718b) adds a new flag so that we can accurately tell which interfaces are suspended and which aren't. At first one might think these flags aren't needed, since interfaces will be suspended along with their devices. It turns out there are a couple of intermediate situations where that's not quite true, such as while processing a remote-wakeup request. Signed-off-by: Alan Stern Signed-off-by: Greg Kroah-Hartman --- drivers/usb/core/usb.h | 6 +++--- include/linux/usb.h | 3 +++ 2 files changed, 6 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/drivers/usb/core/usb.h b/drivers/usb/core/usb.h index cc42972b6bb0..74df0db954c9 100644 --- a/drivers/usb/core/usb.h +++ b/drivers/usb/core/usb.h @@ -59,17 +59,17 @@ static inline int is_usb_device_driver(struct device_driver *drv) static inline void mark_active(struct usb_interface *f) { - f->dev.power.power_state.event = PM_EVENT_ON; + f->is_active = 1; } static inline void mark_quiesced(struct usb_interface *f) { - f->dev.power.power_state.event = PM_EVENT_FREEZE; + f->is_active = 0; } static inline int is_active(struct usb_interface *f) { - return f->dev.power.power_state.event == PM_EVENT_ON; + return f->is_active; } diff --git a/include/linux/usb.h b/include/linux/usb.h index b4ccce6d0982..e22f4b386605 100644 --- a/include/linux/usb.h +++ b/include/linux/usb.h @@ -102,6 +102,7 @@ enum usb_interface_condition { * number from the USB core by calling usb_register_dev(). * @condition: binding state of the interface: not bound, binding * (in probe()), bound to a driver, or unbinding (in disconnect()) + * @is_active: flag set when the interface is bound and not suspended. * @dev: driver model's view of this device * @class_dev: driver model's class view of this device. * @@ -142,6 +143,8 @@ struct usb_interface { int minor; /* minor number this interface is * bound to */ enum usb_interface_condition condition; /* state of binding */ + unsigned is_active:1; /* the interface is not suspended */ + struct device dev; /* interface specific device info */ struct class_device *class_dev; }; -- cgit v1.2.3 From f2ebf92c9e1930a8f79b7eb49a32122931929014 Mon Sep 17 00:00:00 2001 From: Ben Williamson Date: Tue, 1 Aug 2006 11:28:16 +1000 Subject: USB: gmidi: New USB MIDI Gadget class driver. This driver is glue between the USB gadget interface and the ALSA MIDI interface. It allows us to appear as a MIDI Streaming device to a host system on the other end of a USB cable. This includes linux/usb/audio.h and linux/usb/midi.h containing definitions from the relevant USB specifications for USB audio and USB MIDI devices. The following changes have been made since the first RFC posting: * Bug fixes to endpoint handling. * Workaround for USB_REQ_SET_CONFIGURATION handling, not understood yet. * Added SND and SND_RAWMIDI dependencies in Kconfig. * Moved usb_audio.h and usb_midi.h to usb/*.h * Added module parameters for ALSA card index and id. * Added module parameters for USB descriptor IDs and strings. * Removed some unneeded stuff inherited from zero.c, more to go. * Provide DECLARE_* macros for the variable-length structs. * Use kmalloc instead of usb_ep_alloc_buffer. * Limit source to 80 columns. * Return actual error code instead of -ENOMEM in a few places. Signed-off-by: Ben Williamson Cc: David Brownell Signed-off-by: Greg Kroah-Hartman --- drivers/usb/gadget/Kconfig | 14 + drivers/usb/gadget/Makefile | 2 + drivers/usb/gadget/gmidi.c | 1337 +++++++++++++++++++++++++++++++++++++++++++ include/linux/usb/audio.h | 53 ++ include/linux/usb/midi.h | 112 ++++ 5 files changed, 1518 insertions(+) create mode 100644 drivers/usb/gadget/gmidi.c create mode 100644 include/linux/usb/audio.h create mode 100644 include/linux/usb/midi.h (limited to 'include') diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig index 1a32d96774b4..4301e96c417b 100644 --- a/drivers/usb/gadget/Kconfig +++ b/drivers/usb/gadget/Kconfig @@ -404,6 +404,20 @@ config USB_G_SERIAL which includes instructions and a "driver info file" needed to make MS-Windows work with this driver. +config USB_MIDI_GADGET + tristate "MIDI Gadget (EXPERIMENTAL)" + depends on SND && EXPERIMENTAL + select SND_RAWMIDI + help + The MIDI Gadget acts as a USB Audio device, with one MIDI + input and one MIDI output. These MIDI jacks appear as + a sound "card" in the ALSA sound system. Other MIDI + connections can then be made on the gadget system, using + ALSA's aconnect utility etc. + + Say "y" to link the driver statically, or "m" to build a + dynamically linked module called "g_midi". + # put drivers that need isochronous transfer support (for audio # or video class gadget drivers), or specific hardware, here. diff --git a/drivers/usb/gadget/Makefile b/drivers/usb/gadget/Makefile index 5a28e61392ec..e71e086a1cfa 100644 --- a/drivers/usb/gadget/Makefile +++ b/drivers/usb/gadget/Makefile @@ -15,6 +15,7 @@ obj-$(CONFIG_USB_AT91) += at91_udc.o g_zero-objs := zero.o usbstring.o config.o epautoconf.o g_ether-objs := ether.o usbstring.o config.o epautoconf.o g_serial-objs := serial.o usbstring.o config.o epautoconf.o +g_midi-objs := gmidi.o usbstring.o config.o epautoconf.o gadgetfs-objs := inode.o g_file_storage-objs := file_storage.o usbstring.o config.o \ epautoconf.o @@ -28,4 +29,5 @@ obj-$(CONFIG_USB_ETH) += g_ether.o obj-$(CONFIG_USB_GADGETFS) += gadgetfs.o obj-$(CONFIG_USB_FILE_STORAGE) += g_file_storage.o obj-$(CONFIG_USB_G_SERIAL) += g_serial.o +obj-$(CONFIG_USB_MIDI_GADGET) += g_midi.o diff --git a/drivers/usb/gadget/gmidi.c b/drivers/usb/gadget/gmidi.c new file mode 100644 index 000000000000..b68cecd57411 --- /dev/null +++ b/drivers/usb/gadget/gmidi.c @@ -0,0 +1,1337 @@ +/* + * gmidi.c -- USB MIDI Gadget Driver + * + * Copyright (C) 2006 Thumtronics Pty Ltd. + * Developed for Thumtronics by Grey Innovation + * Ben Williamson + * + * This software is distributed under the terms of the GNU General Public + * License ("GPL") version 2, as published by the Free Software Foundation. + * + * This code is based in part on: + * + * Gadget Zero driver, Copyright (C) 2003-2004 David Brownell. + * USB Audio driver, Copyright (C) 2002 by Takashi Iwai. + * USB MIDI driver, Copyright (C) 2002-2005 Clemens Ladisch. + * + * Refer to the USB Device Class Definition for MIDI Devices: + * http://www.usb.org/developers/devclass_docs/midi10.pdf + */ + +#define DEBUG 1 +// #define VERBOSE + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include + +#include +#include +#include +#include + +#include "gadget_chips.h" + +MODULE_AUTHOR("Ben Williamson"); +MODULE_LICENSE("GPL v2"); + +#define DRIVER_VERSION "25 Jul 2006" + +static const char shortname[] = "g_midi"; +static const char longname[] = "MIDI Gadget"; + +static int index = SNDRV_DEFAULT_IDX1; +static char *id = SNDRV_DEFAULT_STR1; + +module_param(index, int, 0444); +MODULE_PARM_DESC(index, "Index value for the USB MIDI Gadget adapter."); +module_param(id, charp, 0444); +MODULE_PARM_DESC(id, "ID string for the USB MIDI Gadget adapter."); + +/* Some systems will want different product identifers published in the + * device descriptor, either numbers or strings or both. These string + * parameters are in UTF-8 (superset of ASCII's 7 bit characters). + */ + +static ushort idVendor; +module_param(idVendor, ushort, S_IRUGO); +MODULE_PARM_DESC(idVendor, "USB Vendor ID"); + +static ushort idProduct; +module_param(idProduct, ushort, S_IRUGO); +MODULE_PARM_DESC(idProduct, "USB Product ID"); + +static ushort bcdDevice; +module_param(bcdDevice, ushort, S_IRUGO); +MODULE_PARM_DESC(bcdDevice, "USB Device version (BCD)"); + +static char *iManufacturer; +module_param(iManufacturer, charp, S_IRUGO); +MODULE_PARM_DESC(iManufacturer, "USB Manufacturer string"); + +static char *iProduct; +module_param(iProduct, charp, S_IRUGO); +MODULE_PARM_DESC(iProduct, "USB Product string"); + +static char *iSerialNumber; +module_param(iSerialNumber, charp, S_IRUGO); +MODULE_PARM_DESC(iSerialNumber, "SerialNumber"); + +/* + * this version autoconfigures as much as possible, + * which is reasonable for most "bulk-only" drivers. + */ +static const char *EP_IN_NAME; +static const char *EP_OUT_NAME; + + +/* big enough to hold our biggest descriptor */ +#define USB_BUFSIZ 256 + + +/* This is a gadget, and the IN/OUT naming is from the host's perspective. + USB -> OUT endpoint -> rawmidi + USB <- IN endpoint <- rawmidi */ +struct gmidi_in_port { + struct gmidi_device* dev; + int active; + uint8_t cable; /* cable number << 4 */ + uint8_t state; +#define STATE_UNKNOWN 0 +#define STATE_1PARAM 1 +#define STATE_2PARAM_1 2 +#define STATE_2PARAM_2 3 +#define STATE_SYSEX_0 4 +#define STATE_SYSEX_1 5 +#define STATE_SYSEX_2 6 + uint8_t data[2]; +}; + +struct gmidi_device { + spinlock_t lock; + struct usb_gadget *gadget; + struct usb_request *req; /* for control responses */ + u8 config; + struct usb_ep *in_ep, *out_ep; + struct snd_card *card; + struct snd_rawmidi *rmidi; + struct snd_rawmidi_substream *in_substream; + struct snd_rawmidi_substream *out_substream; + + /* For the moment we only support one port in + each direction, but in_port is kept as a + separate struct so we can have more later. */ + struct gmidi_in_port in_port; + unsigned long out_triggered; + struct tasklet_struct tasklet; +}; + +static void gmidi_transmit(struct gmidi_device* dev, struct usb_request* req); + + +#define xprintk(d,level,fmt,args...) \ + dev_printk(level , &(d)->gadget->dev , fmt , ## args) + +#ifdef DEBUG +#define DBG(dev,fmt,args...) \ + xprintk(dev , KERN_DEBUG , fmt , ## args) +#else +#define DBG(dev,fmt,args...) \ + do { } while (0) +#endif /* DEBUG */ + +#ifdef VERBOSE +#define VDBG DBG +#else +#define VDBG(dev,fmt,args...) \ + do { } while (0) +#endif /* VERBOSE */ + +#define ERROR(dev,fmt,args...) \ + xprintk(dev , KERN_ERR , fmt , ## args) +#define WARN(dev,fmt,args...) \ + xprintk(dev , KERN_WARNING , fmt , ## args) +#define INFO(dev,fmt,args...) \ + xprintk(dev , KERN_INFO , fmt , ## args) + + +static unsigned buflen = 256; +static unsigned qlen = 32; + +module_param(buflen, uint, S_IRUGO); +module_param(qlen, uint, S_IRUGO); + + +/* Thanks to Grey Innovation for donating this product ID. + * + * DO NOT REUSE THESE IDs with a protocol-incompatible driver!! Ever!! + * Instead: allocate your own, using normal USB-IF procedures. + */ +#define DRIVER_VENDOR_NUM 0x17b3 /* Grey Innovation */ +#define DRIVER_PRODUCT_NUM 0x0004 /* Linux-USB "MIDI Gadget" */ + + +/* + * DESCRIPTORS ... most are static, but strings and (full) + * configuration descriptors are built on demand. + */ + +#define STRING_MANUFACTURER 25 +#define STRING_PRODUCT 42 +#define STRING_SERIAL 101 +#define STRING_MIDI_GADGET 250 + +/* We only have the one configuration, it's number 1. */ +#define GMIDI_CONFIG 1 + +/* We have two interfaces- AudioControl and MIDIStreaming */ +#define GMIDI_AC_INTERFACE 0 +#define GMIDI_MS_INTERFACE 1 +#define GMIDI_NUM_INTERFACES 2 + +DECLARE_USB_AC_HEADER_DESCRIPTOR(1); +DECLARE_USB_MIDI_OUT_JACK_DESCRIPTOR(1); +DECLARE_USB_MS_ENDPOINT_DESCRIPTOR(1); + +/* B.1 Device Descriptor */ +static struct usb_device_descriptor device_desc = { + .bLength = USB_DT_DEVICE_SIZE, + .bDescriptorType = USB_DT_DEVICE, + .bcdUSB = __constant_cpu_to_le16(0x0200), + .bDeviceClass = USB_CLASS_PER_INTERFACE, + .idVendor = __constant_cpu_to_le16(DRIVER_VENDOR_NUM), + .idProduct = __constant_cpu_to_le16(DRIVER_PRODUCT_NUM), + .iManufacturer = STRING_MANUFACTURER, + .iProduct = STRING_PRODUCT, + .bNumConfigurations = 1, +}; + +/* B.2 Configuration Descriptor */ +static struct usb_config_descriptor config_desc = { + .bLength = USB_DT_CONFIG_SIZE, + .bDescriptorType = USB_DT_CONFIG, + /* compute wTotalLength on the fly */ + .bNumInterfaces = GMIDI_NUM_INTERFACES, + .bConfigurationValue = GMIDI_CONFIG, + .iConfiguration = STRING_MIDI_GADGET, + /* + * FIXME: When embedding this driver in a device, + * these need to be set to reflect the actual + * power properties of the device. Is it selfpowered? + */ + .bmAttributes = USB_CONFIG_ATT_ONE, + .bMaxPower = 1, +}; + +/* B.3.1 Standard AC Interface Descriptor */ +static const struct usb_interface_descriptor ac_interface_desc = { + .bLength = USB_DT_INTERFACE_SIZE, + .bDescriptorType = USB_DT_INTERFACE, + .bInterfaceNumber = GMIDI_AC_INTERFACE, + .bNumEndpoints = 0, + .bInterfaceClass = USB_CLASS_AUDIO, + .bInterfaceSubClass = USB_SUBCLASS_AUDIOCONTROL, + .iInterface = STRING_MIDI_GADGET, +}; + +/* B.3.2 Class-Specific AC Interface Descriptor */ +static const struct usb_ac_header_descriptor_1 ac_header_desc = { + .bLength = USB_DT_AC_HEADER_SIZE(1), + .bDescriptorType = USB_DT_CS_INTERFACE, + .bDescriptorSubtype = USB_MS_HEADER, + .bcdADC = __constant_cpu_to_le16(0x0100), + .wTotalLength = USB_DT_AC_HEADER_SIZE(1), + .bInCollection = 1, + .baInterfaceNr = { + [0] = GMIDI_MS_INTERFACE, + } +}; + +/* B.4.1 Standard MS Interface Descriptor */ +static const struct usb_interface_descriptor ms_interface_desc = { + .bLength = USB_DT_INTERFACE_SIZE, + .bDescriptorType = USB_DT_INTERFACE, + .bInterfaceNumber = GMIDI_MS_INTERFACE, + .bNumEndpoints = 2, + .bInterfaceClass = USB_CLASS_AUDIO, + .bInterfaceSubClass = USB_SUBCLASS_MIDISTREAMING, + .iInterface = STRING_MIDI_GADGET, +}; + +/* B.4.2 Class-Specific MS Interface Descriptor */ +static const struct usb_ms_header_descriptor ms_header_desc = { + .bLength = USB_DT_MS_HEADER_SIZE, + .bDescriptorType = USB_DT_CS_INTERFACE, + .bDescriptorSubtype = USB_MS_HEADER, + .bcdMSC = __constant_cpu_to_le16(0x0100), + .wTotalLength = USB_DT_MS_HEADER_SIZE + + 2*USB_DT_MIDI_IN_SIZE + + 2*USB_DT_MIDI_OUT_SIZE(1), +}; + +#define JACK_IN_EMB 1 +#define JACK_IN_EXT 2 +#define JACK_OUT_EMB 3 +#define JACK_OUT_EXT 4 + +/* B.4.3 MIDI IN Jack Descriptors */ +static const struct usb_midi_in_jack_descriptor jack_in_emb_desc = { + .bLength = USB_DT_MIDI_IN_SIZE, + .bDescriptorType = USB_DT_CS_INTERFACE, + .bDescriptorSubtype = USB_MS_MIDI_IN_JACK, + .bJackType = USB_MS_EMBEDDED, + .bJackID = JACK_IN_EMB, +}; + +static const struct usb_midi_in_jack_descriptor jack_in_ext_desc = { + .bLength = USB_DT_MIDI_IN_SIZE, + .bDescriptorType = USB_DT_CS_INTERFACE, + .bDescriptorSubtype = USB_MS_MIDI_IN_JACK, + .bJackType = USB_MS_EXTERNAL, + .bJackID = JACK_IN_EXT, +}; + +/* B.4.4 MIDI OUT Jack Descriptors */ +static const struct usb_midi_out_jack_descriptor_1 jack_out_emb_desc = { + .bLength = USB_DT_MIDI_OUT_SIZE(1), + .bDescriptorType = USB_DT_CS_INTERFACE, + .bDescriptorSubtype = USB_MS_MIDI_OUT_JACK, + .bJackType = USB_MS_EMBEDDED, + .bJackID = JACK_OUT_EMB, + .bNrInputPins = 1, + .pins = { + [0] = { + .baSourceID = JACK_IN_EXT, + .baSourcePin = 1, + } + } +}; + +static const struct usb_midi_out_jack_descriptor_1 jack_out_ext_desc = { + .bLength = USB_DT_MIDI_OUT_SIZE(1), + .bDescriptorType = USB_DT_CS_INTERFACE, + .bDescriptorSubtype = USB_MS_MIDI_OUT_JACK, + .bJackType = USB_MS_EXTERNAL, + .bJackID = JACK_OUT_EXT, + .bNrInputPins = 1, + .pins = { + [0] = { + .baSourceID = JACK_IN_EMB, + .baSourcePin = 1, + } + } +}; + +/* B.5.1 Standard Bulk OUT Endpoint Descriptor */ +static struct usb_endpoint_descriptor bulk_out_desc = { + .bLength = USB_DT_ENDPOINT_AUDIO_SIZE, + .bDescriptorType = USB_DT_ENDPOINT, + .bEndpointAddress = USB_DIR_OUT, + .bmAttributes = USB_ENDPOINT_XFER_BULK, +}; + +/* B.5.2 Class-specific MS Bulk OUT Endpoint Descriptor */ +static const struct usb_ms_endpoint_descriptor_1 ms_out_desc = { + .bLength = USB_DT_MS_ENDPOINT_SIZE(1), + .bDescriptorType = USB_DT_CS_ENDPOINT, + .bDescriptorSubtype = USB_MS_GENERAL, + .bNumEmbMIDIJack = 1, + .baAssocJackID = { + [0] = JACK_IN_EMB, + } +}; + +/* B.6.1 Standard Bulk IN Endpoint Descriptor */ +static struct usb_endpoint_descriptor bulk_in_desc = { + .bLength = USB_DT_ENDPOINT_AUDIO_SIZE, + .bDescriptorType = USB_DT_ENDPOINT, + .bEndpointAddress = USB_DIR_IN, + .bmAttributes = USB_ENDPOINT_XFER_BULK, +}; + +/* B.6.2 Class-specific MS Bulk IN Endpoint Descriptor */ +static const struct usb_ms_endpoint_descriptor_1 ms_in_desc = { + .bLength = USB_DT_MS_ENDPOINT_SIZE(1), + .bDescriptorType = USB_DT_CS_ENDPOINT, + .bDescriptorSubtype = USB_MS_GENERAL, + .bNumEmbMIDIJack = 1, + .baAssocJackID = { + [0] = JACK_OUT_EMB, + } +}; + +static const struct usb_descriptor_header *gmidi_function [] = { + (struct usb_descriptor_header *)&ac_interface_desc, + (struct usb_descriptor_header *)&ac_header_desc, + (struct usb_descriptor_header *)&ms_interface_desc, + + (struct usb_descriptor_header *)&ms_header_desc, + (struct usb_descriptor_header *)&jack_in_emb_desc, + (struct usb_descriptor_header *)&jack_in_ext_desc, + (struct usb_descriptor_header *)&jack_out_emb_desc, + (struct usb_descriptor_header *)&jack_out_ext_desc, + /* If you add more jacks, update ms_header_desc.wTotalLength */ + + (struct usb_descriptor_header *)&bulk_out_desc, + (struct usb_descriptor_header *)&ms_out_desc, + (struct usb_descriptor_header *)&bulk_in_desc, + (struct usb_descriptor_header *)&ms_in_desc, + NULL, +}; + +static char manufacturer[50]; +static char product_desc[40] = "MIDI Gadget"; +static char serial_number[20]; + +/* static strings, in UTF-8 */ +static struct usb_string strings [] = { + { STRING_MANUFACTURER, manufacturer, }, + { STRING_PRODUCT, product_desc, }, + { STRING_SERIAL, serial_number, }, + { STRING_MIDI_GADGET, longname, }, + { } /* end of list */ +}; + +static struct usb_gadget_strings stringtab = { + .language = 0x0409, /* en-us */ + .strings = strings, +}; + +static int config_buf(struct usb_gadget *gadget, + u8 *buf, u8 type, unsigned index) +{ + int len; + + /* only one configuration */ + if (index != 0) { + return -EINVAL; + } + len = usb_gadget_config_buf(&config_desc, + buf, USB_BUFSIZ, gmidi_function); + if (len < 0) { + return len; + } + ((struct usb_config_descriptor *)buf)->bDescriptorType = type; + return len; +} + +static struct usb_request* alloc_ep_req(struct usb_ep *ep, unsigned length) +{ + struct usb_request *req; + + req = usb_ep_alloc_request(ep, GFP_ATOMIC); + if (req) { + req->length = length; + req->buf = kmalloc(length, GFP_ATOMIC); + if (!req->buf) { + usb_ep_free_request(ep, req); + req = NULL; + } + } + return req; +} + +static void free_ep_req(struct usb_ep *ep, struct usb_request *req) +{ + kfree(req->buf); + usb_ep_free_request(ep, req); +} + +static const uint8_t gmidi_cin_length[] = { + 0, 0, 2, 3, 3, 1, 2, 3, 3, 3, 3, 3, 2, 2, 3, 1 +}; + +/* + * Receives a chunk of MIDI data. + */ +static void gmidi_read_data(struct usb_ep *ep, int cable, + uint8_t* data, int length) +{ + struct gmidi_device *dev = ep->driver_data; + /* cable is ignored, because for now we only have one. */ + + if (!dev->out_substream) { + /* Nobody is listening - throw it on the floor. */ + return; + } + if (!test_bit(dev->out_substream->number, &dev->out_triggered)) { + return; + } + snd_rawmidi_receive(dev->out_substream, data, length); +} + +static void gmidi_handle_out_data(struct usb_ep *ep, struct usb_request *req) +{ + unsigned i; + u8 *buf = req->buf; + + for (i = 0; i + 3 < req->actual; i += 4) { + if (buf[i] != 0) { + int cable = buf[i] >> 4; + int length = gmidi_cin_length[buf[i] & 0x0f]; + gmidi_read_data(ep, cable, &buf[i + 1], length); + } + } +} + +static void gmidi_complete(struct usb_ep *ep, struct usb_request *req) +{ + struct gmidi_device *dev = ep->driver_data; + int status = req->status; + + switch (status) { + case 0: /* normal completion */ + if (ep == dev->out_ep) { + /* we received stuff. + req is queued again, below */ + gmidi_handle_out_data(ep, req); + } else if (ep == dev->in_ep) { + /* our transmit completed. + see if there's more to go. + gmidi_transmit eats req, don't queue it again. */ + gmidi_transmit(dev, req); + return; + } + break; + + /* this endpoint is normally active while we're configured */ + case -ECONNABORTED: /* hardware forced ep reset */ + case -ECONNRESET: /* request dequeued */ + case -ESHUTDOWN: /* disconnect from host */ + VDBG(dev, "%s gone (%d), %d/%d\n", ep->name, status, + req->actual, req->length); + if (ep == dev->out_ep) { + gmidi_handle_out_data(ep, req); + } + free_ep_req(ep, req); + return; + + case -EOVERFLOW: /* buffer overrun on read means that + * we didn't provide a big enough + * buffer. + */ + default: + DBG(dev, "%s complete --> %d, %d/%d\n", ep->name, + status, req->actual, req->length); + break; + case -EREMOTEIO: /* short read */ + break; + } + + status = usb_ep_queue(ep, req, GFP_ATOMIC); + if (status) { + ERROR(dev, "kill %s: resubmit %d bytes --> %d\n", + ep->name, req->length, status); + usb_ep_set_halt(ep); + /* FIXME recover later ... somehow */ + } +} + +static int set_gmidi_config(struct gmidi_device *dev, gfp_t gfp_flags) +{ + int err = 0; + struct usb_request *req; + struct usb_ep* ep; + unsigned i; + + err = usb_ep_enable(dev->in_ep, &bulk_in_desc); + if (err) { + ERROR(dev, "can't start %s: %d\n", dev->in_ep->name, err); + goto fail; + } + dev->in_ep->driver_data = dev; + + err = usb_ep_enable(dev->out_ep, &bulk_out_desc); + if (err) { + ERROR(dev, "can't start %s: %d\n", dev->out_ep->name, err); + goto fail; + } + dev->out_ep->driver_data = dev; + + /* allocate a bunch of read buffers and queue them all at once. */ + ep = dev->out_ep; + for (i = 0; i < qlen && err == 0; i++) { + req = alloc_ep_req(ep, buflen); + if (req) { + req->complete = gmidi_complete; + err = usb_ep_queue(ep, req, GFP_ATOMIC); + if (err) { + DBG(dev, "%s queue req: %d\n", ep->name, err); + } + } else { + err = -ENOMEM; + } + } +fail: + /* caller is responsible for cleanup on error */ + return err; +} + + +static void gmidi_reset_config(struct gmidi_device *dev) +{ + if (dev->config == 0) { + return; + } + + DBG(dev, "reset config\n"); + + /* just disable endpoints, forcing completion of pending i/o. + * all our completion handlers free their requests in this case. + */ + usb_ep_disable(dev->in_ep); + usb_ep_disable(dev->out_ep); + dev->config = 0; +} + +/* change our operational config. this code must agree with the code + * that returns config descriptors, and altsetting code. + * + * it's also responsible for power management interactions. some + * configurations might not work with our current power sources. + * + * note that some device controller hardware will constrain what this + * code can do, perhaps by disallowing more than one configuration or + * by limiting configuration choices (like the pxa2xx). + */ +static int +gmidi_set_config(struct gmidi_device *dev, unsigned number, gfp_t gfp_flags) +{ + int result = 0; + struct usb_gadget *gadget = dev->gadget; + +#if 0 + /* FIXME */ + /* Hacking this bit out fixes a bug where on receipt of two + USB_REQ_SET_CONFIGURATION messages, we end up with no + buffered OUT requests waiting for data. This is clearly + hiding a bug elsewhere, because if the config didn't + change then we really shouldn't do anything. */ + /* Having said that, when we do "change" from config 1 + to config 1, we at least gmidi_reset_config() which + clears out any requests on endpoints, so it's not like + we leak or anything. */ + if (number == dev->config) { + return 0; + } +#endif + + if (gadget_is_sa1100(gadget) && dev->config) { + /* tx fifo is full, but we can't clear it...*/ + INFO(dev, "can't change configurations\n"); + return -ESPIPE; + } + gmidi_reset_config(dev); + + switch (number) { + case GMIDI_CONFIG: + result = set_gmidi_config(dev, gfp_flags); + break; + default: + result = -EINVAL; + /* FALL THROUGH */ + case 0: + return result; + } + + if (!result && (!dev->in_ep || !dev->out_ep)) { + result = -ENODEV; + } + if (result) { + gmidi_reset_config(dev); + } else { + 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; + } + + dev->config = number; + INFO(dev, "%s speed\n", speed); + } + return result; +} + + +static void gmidi_setup_complete(struct usb_ep *ep, struct usb_request *req) +{ + if (req->status || req->actual != req->length) { + DBG((struct gmidi_device *) 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-specific setup. + */ +static int gmidi_setup(struct usb_gadget *gadget, + const struct usb_ctrlrequest *ctrl) +{ + struct gmidi_device *dev = get_gadget_data(gadget); + struct usb_request *req = dev->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); + + /* usually this stores reply data in the pre-allocated ep0 buffer, + * but config change events will reconfigure hardware. + */ + req->zero = 0; + switch (ctrl->bRequest) { + + case USB_REQ_GET_DESCRIPTOR: + if (ctrl->bRequestType != USB_DIR_IN) { + goto unknown; + } + switch (w_value >> 8) { + + case USB_DT_DEVICE: + value = min(w_length, (u16) sizeof(device_desc)); + memcpy(req->buf, &device_desc, value); + break; + case USB_DT_CONFIG: + value = config_buf(gadget, req->buf, + w_value >> 8, + w_value & 0xff); + if (value >= 0) { + value = min(w_length, (u16)value); + } + break; + + case USB_DT_STRING: + /* wIndex == language code. + * this driver only handles one language, you can + * add string tables for other languages, using + * any UTF-8 characters + */ + value = usb_gadget_get_string(&stringtab, + w_value & 0xff, req->buf); + if (value >= 0) { + value = min(w_length, (u16)value); + } + break; + } + break; + + /* currently two configs, two speeds */ + case USB_REQ_SET_CONFIGURATION: + if (ctrl->bRequestType != 0) { + goto unknown; + } + if (gadget->a_hnp_support) { + DBG(dev, "HNP available\n"); + } else if (gadget->a_alt_hnp_support) { + DBG(dev, "HNP needs a different root port\n"); + } else { + VDBG(dev, "HNP inactive\n"); + } + spin_lock(&dev->lock); + value = gmidi_set_config(dev, w_value, GFP_ATOMIC); + spin_unlock(&dev->lock); + break; + case USB_REQ_GET_CONFIGURATION: + if (ctrl->bRequestType != USB_DIR_IN) { + goto unknown; + } + *(u8 *)req->buf = dev->config; + value = min(w_length, (u16)1); + break; + + /* until we add altsetting support, or other interfaces, + * only 0/0 are possible. pxa2xx only supports 0/0 (poorly) + * and already killed pending endpoint I/O. + */ + case USB_REQ_SET_INTERFACE: + if (ctrl->bRequestType != USB_RECIP_INTERFACE) { + goto unknown; + } + spin_lock(&dev->lock); + if (dev->config && w_index < GMIDI_NUM_INTERFACES + && w_value == 0) + { + u8 config = dev->config; + + /* resets interface configuration, forgets about + * previous transaction state (queued bufs, etc) + * and re-inits endpoint state (toggle etc) + * no response queued, just zero status == success. + * if we had more than one interface we couldn't + * use this "reset the config" shortcut. + */ + gmidi_reset_config(dev); + gmidi_set_config(dev, config, GFP_ATOMIC); + value = 0; + } + spin_unlock(&dev->lock); + break; + case USB_REQ_GET_INTERFACE: + if (ctrl->bRequestType != (USB_DIR_IN|USB_RECIP_INTERFACE)) { + goto unknown; + } + if (!dev->config) { + break; + } + if (w_index >= GMIDI_NUM_INTERFACES) { + value = -EDOM; + break; + } + *(u8 *)req->buf = 0; + value = min(w_length, (u16)1); + break; + + default: +unknown: + VDBG(dev, "unknown control req%02x.%02x v%04x i%04x l%d\n", + ctrl->bRequestType, ctrl->bRequest, + w_value, w_index, w_length); + } + + /* 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(dev, "ep_queue --> %d\n", value); + req->status = 0; + gmidi_setup_complete(gadget->ep0, req); + } + } + + /* device either stalls (value < 0) or reports success */ + return value; +} + +static void gmidi_disconnect(struct usb_gadget *gadget) +{ + struct gmidi_device *dev = get_gadget_data(gadget); + unsigned long flags; + + spin_lock_irqsave(&dev->lock, flags); + gmidi_reset_config(dev); + + /* a more significant application might have some non-usb + * activities to quiesce here, saving resources like power + * or pushing the notification up a network stack. + */ + spin_unlock_irqrestore(&dev->lock, flags); + + /* next we may get setup() calls to enumerate new connections; + * or an unbind() during shutdown (including removing module). + */ +} + +static void /* __init_or_exit */ gmidi_unbind(struct usb_gadget *gadget) +{ + struct gmidi_device *dev = get_gadget_data(gadget); + struct snd_card* card; + + DBG(dev, "unbind\n"); + + card = dev->card; + dev->card = NULL; + if (card) { + snd_card_free(card); + } + + /* we've already been disconnected ... no i/o is active */ + if (dev->req) { + dev->req->length = USB_BUFSIZ; + free_ep_req(gadget->ep0, dev->req); + } + kfree(dev); + set_gadget_data(gadget, NULL); +} + +static int gmidi_snd_free(struct snd_device *device) +{ + return 0; +} + +static void gmidi_transmit_packet(struct usb_request* req, uint8_t p0, + uint8_t p1, uint8_t p2, uint8_t p3) +{ + unsigned length = req->length; + + uint8_t* buf = (uint8_t*)req->buf + length; + buf[0] = p0; + buf[1] = p1; + buf[2] = p2; + buf[3] = p3; + req->length = length + 4; +} + +/* + * Converts MIDI commands to USB MIDI packets. + */ +static void gmidi_transmit_byte(struct usb_request* req, + struct gmidi_in_port* port, uint8_t b) +{ + uint8_t p0 = port->cable; + + if (b >= 0xf8) { + gmidi_transmit_packet(req, p0 | 0x0f, b, 0, 0); + } else if (b >= 0xf0) { + switch (b) { + case 0xf0: + port->data[0] = b; + port->state = STATE_SYSEX_1; + break; + case 0xf1: + case 0xf3: + port->data[0] = b; + port->state = STATE_1PARAM; + break; + case 0xf2: + port->data[0] = b; + port->state = STATE_2PARAM_1; + break; + case 0xf4: + case 0xf5: + port->state = STATE_UNKNOWN; + break; + case 0xf6: + gmidi_transmit_packet(req, p0 | 0x05, 0xf6, 0, 0); + port->state = STATE_UNKNOWN; + break; + case 0xf7: + switch (port->state) { + case STATE_SYSEX_0: + gmidi_transmit_packet(req, + p0 | 0x05, 0xf7, 0, 0); + break; + case STATE_SYSEX_1: + gmidi_transmit_packet(req, + p0 | 0x06, port->data[0], 0xf7, 0); + break; + case STATE_SYSEX_2: + gmidi_transmit_packet(req, + p0 | 0x07, port->data[0], + port->data[1], 0xf7); + break; + } + port->state = STATE_UNKNOWN; + break; + } + } else if (b >= 0x80) { + port->data[0] = b; + if (b >= 0xc0 && b <= 0xdf) + port->state = STATE_1PARAM; + else + port->state = STATE_2PARAM_1; + } else { /* b < 0x80 */ + switch (port->state) { + case STATE_1PARAM: + if (port->data[0] < 0xf0) { + p0 |= port->data[0] >> 4; + } else { + p0 |= 0x02; + port->state = STATE_UNKNOWN; + } + gmidi_transmit_packet(req, p0, port->data[0], b, 0); + break; + case STATE_2PARAM_1: + port->data[1] = b; + port->state = STATE_2PARAM_2; + break; + case STATE_2PARAM_2: + if (port->data[0] < 0xf0) { + p0 |= port->data[0] >> 4; + port->state = STATE_2PARAM_1; + } else { + p0 |= 0x03; + port->state = STATE_UNKNOWN; + } + gmidi_transmit_packet(req, + p0, port->data[0], port->data[1], b); + break; + case STATE_SYSEX_0: + port->data[0] = b; + port->state = STATE_SYSEX_1; + break; + case STATE_SYSEX_1: + port->data[1] = b; + port->state = STATE_SYSEX_2; + break; + case STATE_SYSEX_2: + gmidi_transmit_packet(req, + p0 | 0x04, port->data[0], port->data[1], b); + port->state = STATE_SYSEX_0; + break; + } + } +} + +static void gmidi_transmit(struct gmidi_device* dev, struct usb_request* req) +{ + struct usb_ep* ep = dev->in_ep; + struct gmidi_in_port* port = &dev->in_port; + + if (!ep) { + return; + } + if (!req) { + req = alloc_ep_req(ep, buflen); + } + if (!req) { + ERROR(dev, "gmidi_transmit: alloc_ep_request failed\n"); + return; + } + req->length = 0; + req->complete = gmidi_complete; + + if (port->active) { + while (req->length + 3 < buflen) { + uint8_t b; + if (snd_rawmidi_transmit(dev->in_substream, &b, 1) + != 1) + { + port->active = 0; + break; + } + gmidi_transmit_byte(req, port, b); + } + } + if (req->length > 0) { + usb_ep_queue(ep, req, GFP_ATOMIC); + } else { + free_ep_req(ep, req); + } +} + +static void gmidi_in_tasklet(unsigned long data) +{ + struct gmidi_device* dev = (struct gmidi_device*)data; + + gmidi_transmit(dev, NULL); +} + +static int gmidi_in_open(struct snd_rawmidi_substream *substream) +{ + struct gmidi_device* dev = substream->rmidi->private_data; + + VDBG(dev, "gmidi_in_open\n"); + dev->in_substream = substream; + dev->in_port.state = STATE_UNKNOWN; + return 0; +} + +static int gmidi_in_close(struct snd_rawmidi_substream *substream) +{ + VDBG(dev, "gmidi_in_close\n"); + return 0; +} + +static void gmidi_in_trigger(struct snd_rawmidi_substream *substream, int up) +{ + struct gmidi_device* dev = substream->rmidi->private_data; + + VDBG(dev, "gmidi_in_trigger %d\n", up); + dev->in_port.active = up; + if (up) { + tasklet_hi_schedule(&dev->tasklet); + } +} + +static int gmidi_out_open(struct snd_rawmidi_substream *substream) +{ + struct gmidi_device* dev = substream->rmidi->private_data; + + VDBG(dev, "gmidi_out_open\n"); + dev->out_substream = substream; + return 0; +} + +static int gmidi_out_close(struct snd_rawmidi_substream *substream) +{ + VDBG(dev, "gmidi_out_close\n"); + return 0; +} + +static void gmidi_out_trigger(struct snd_rawmidi_substream *substream, int up) +{ + struct gmidi_device* dev = substream->rmidi->private_data; + + VDBG(dev, "gmidi_out_trigger %d\n", up); + if (up) { + set_bit(substream->number, &dev->out_triggered); + } else { + clear_bit(substream->number, &dev->out_triggered); + } +} + +static struct snd_rawmidi_ops gmidi_in_ops = { + .open = gmidi_in_open, + .close = gmidi_in_close, + .trigger = gmidi_in_trigger, +}; + +static struct snd_rawmidi_ops gmidi_out_ops = { + .open = gmidi_out_open, + .close = gmidi_out_close, + .trigger = gmidi_out_trigger +}; + +/* register as a sound "card" */ +static int gmidi_register_card(struct gmidi_device *dev) +{ + struct snd_card *card; + struct snd_rawmidi *rmidi; + int err; + int out_ports = 1; + int in_ports = 1; + static struct snd_device_ops ops = { + .dev_free = gmidi_snd_free, + }; + + card = snd_card_new(index, id, THIS_MODULE, 0); + if (!card) { + ERROR(dev, "snd_card_new failed\n"); + err = -ENOMEM; + goto fail; + } + dev->card = card; + + err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, dev, &ops); + if (err < 0) { + ERROR(dev, "snd_device_new failed: error %d\n", err); + goto fail; + } + + strcpy(card->driver, longname); + strcpy(card->longname, longname); + strcpy(card->shortname, shortname); + + /* Set up rawmidi */ + dev->in_port.dev = dev; + dev->in_port.active = 0; + snd_component_add(card, "MIDI"); + err = snd_rawmidi_new(card, "USB MIDI Gadget", 0, + out_ports, in_ports, &rmidi); + if (err < 0) { + ERROR(dev, "snd_rawmidi_new failed: error %d\n", err); + goto fail; + } + dev->rmidi = rmidi; + strcpy(rmidi->name, card->shortname); + rmidi->info_flags = SNDRV_RAWMIDI_INFO_OUTPUT | + SNDRV_RAWMIDI_INFO_INPUT | + SNDRV_RAWMIDI_INFO_DUPLEX; + rmidi->private_data = dev; + + /* Yes, rawmidi OUTPUT = USB IN, and rawmidi INPUT = USB OUT. + It's an upside-down world being a gadget. */ + snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT, &gmidi_in_ops); + snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT, &gmidi_out_ops); + + snd_card_set_dev(card, &dev->gadget->dev); + + /* register it - we're ready to go */ + err = snd_card_register(card); + if (err < 0) { + ERROR(dev, "snd_card_register failed\n"); + goto fail; + } + + VDBG(dev, "gmidi_register_card finished ok\n"); + return 0; + +fail: + if (dev->card) { + snd_card_free(dev->card); + dev->card = NULL; + } + return err; +} + +/* + * Creates an output endpoint, and initializes output ports. + */ +static int __devinit gmidi_bind(struct usb_gadget *gadget) +{ + struct gmidi_device *dev; + struct usb_ep *in_ep, *out_ep; + int gcnum, err = 0; + + /* support optional vendor/distro customization */ + if (idVendor) { + if (!idProduct) { + printk(KERN_ERR "idVendor needs idProduct!\n"); + return -ENODEV; + } + device_desc.idVendor = cpu_to_le16(idVendor); + device_desc.idProduct = cpu_to_le16(idProduct); + if (bcdDevice) { + device_desc.bcdDevice = cpu_to_le16(bcdDevice); + } + } + if (iManufacturer) { + strlcpy(manufacturer, iManufacturer, sizeof(manufacturer)); + } else { + snprintf(manufacturer, sizeof(manufacturer), "%s %s with %s", + system_utsname.sysname, system_utsname.release, + gadget->name); + } + if (iProduct) { + strlcpy(product_desc, iProduct, sizeof(product_desc)); + } + if (iSerialNumber) { + device_desc.iSerialNumber = STRING_SERIAL, + strlcpy(serial_number, iSerialNumber, sizeof(serial_number)); + } + + /* Bulk-only drivers like this one SHOULD be able to + * autoconfigure on any sane usb controller driver, + * but there may also be important quirks to address. + */ + usb_ep_autoconfig_reset(gadget); + in_ep = usb_ep_autoconfig(gadget, &bulk_in_desc); + if (!in_ep) { +autoconf_fail: + printk(KERN_ERR "%s: can't autoconfigure on %s\n", + shortname, gadget->name); + return -ENODEV; + } + EP_IN_NAME = in_ep->name; + in_ep->driver_data = in_ep; /* claim */ + + out_ep = usb_ep_autoconfig(gadget, &bulk_out_desc); + if (!out_ep) { + goto autoconf_fail; + } + EP_OUT_NAME = out_ep->name; + out_ep->driver_data = out_ep; /* claim */ + + gcnum = usb_gadget_controller_number(gadget); + if (gcnum >= 0) { + device_desc.bcdDevice = cpu_to_le16(0x0200 + gcnum); + } else { + /* gmidi is so simple (no altsettings) that + * it SHOULD NOT have problems with bulk-capable hardware. + * so warn about unrecognized controllers, don't panic. + */ + printk(KERN_WARNING "%s: controller '%s' not recognized\n", + shortname, gadget->name); + device_desc.bcdDevice = __constant_cpu_to_le16(0x9999); + } + + + /* ok, we made sense of the hardware ... */ + dev = kzalloc(sizeof(*dev), SLAB_KERNEL); + if (!dev) { + return -ENOMEM; + } + spin_lock_init(&dev->lock); + dev->gadget = gadget; + dev->in_ep = in_ep; + dev->out_ep = out_ep; + set_gadget_data(gadget, dev); + tasklet_init(&dev->tasklet, gmidi_in_tasklet, (unsigned long)dev); + + /* preallocate control response and buffer */ + dev->req = usb_ep_alloc_request(gadget->ep0, GFP_KERNEL); + if (!dev->req) { + err = -ENOMEM; + goto fail; + } + dev->req->buf = usb_ep_alloc_buffer(gadget->ep0, USB_BUFSIZ, + &dev->req->dma, GFP_KERNEL); + if (!dev->req->buf) { + err = -ENOMEM; + goto fail; + } + + dev->req->complete = gmidi_setup_complete; + + device_desc.bMaxPacketSize0 = gadget->ep0->maxpacket; + + gadget->ep0->driver_data = dev; + + INFO(dev, "%s, version: " DRIVER_VERSION "\n", longname); + INFO(dev, "using %s, OUT %s IN %s\n", gadget->name, + EP_OUT_NAME, EP_IN_NAME); + + /* register as an ALSA sound card */ + err = gmidi_register_card(dev); + if (err < 0) { + goto fail; + } + + VDBG(dev, "gmidi_bind finished ok\n"); + return 0; + +fail: + gmidi_unbind(gadget); + return err; +} + + +static void gmidi_suspend(struct usb_gadget *gadget) +{ + struct gmidi_device *dev = get_gadget_data(gadget); + + if (gadget->speed == USB_SPEED_UNKNOWN) { + return; + } + + DBG(dev, "suspend\n"); +} + +static void gmidi_resume(struct usb_gadget *gadget) +{ + struct gmidi_device *dev = get_gadget_data(gadget); + + DBG(dev, "resume\n"); +} + + +static struct usb_gadget_driver gmidi_driver = { + .speed = USB_SPEED_FULL, + .function = (char *)longname, + .bind = gmidi_bind, + .unbind = __exit_p(gmidi_unbind), + + .setup = gmidi_setup, + .disconnect = gmidi_disconnect, + + .suspend = gmidi_suspend, + .resume = gmidi_resume, + + .driver = { + .name = (char *)shortname, + .owner = THIS_MODULE, + }, +}; + +static int __init gmidi_init(void) +{ + return usb_gadget_register_driver(&gmidi_driver); +} +module_init(gmidi_init); + +static void __exit gmidi_cleanup(void) +{ + usb_gadget_unregister_driver(&gmidi_driver); +} +module_exit(gmidi_cleanup); + diff --git a/include/linux/usb/audio.h b/include/linux/usb/audio.h new file mode 100644 index 000000000000..6bd235994dc2 --- /dev/null +++ b/include/linux/usb/audio.h @@ -0,0 +1,53 @@ +/* + * -- USB Audio definitions. + * + * Copyright (C) 2006 Thumtronics Pty Ltd. + * Developed for Thumtronics by Grey Innovation + * Ben Williamson + * + * This software is distributed under the terms of the GNU General Public + * License ("GPL") version 2, as published by the Free Software Foundation. + * + * This file holds USB constants and structures defined + * by the USB Device Class Definition for Audio Devices. + * Comments below reference relevant sections of that document: + * + * http://www.usb.org/developers/devclass_docs/audio10.pdf + */ + +#ifndef __LINUX_USB_AUDIO_H +#define __LINUX_USB_AUDIO_H + +#include + +/* A.2 Audio Interface Subclass Codes */ +#define USB_SUBCLASS_AUDIOCONTROL 0x01 +#define USB_SUBCLASS_AUDIOSTREAMING 0x02 +#define USB_SUBCLASS_MIDISTREAMING 0x03 + +/* 4.3.2 Class-Specific AC Interface Descriptor */ +struct usb_ac_header_descriptor { + __u8 bLength; // 8+n + __u8 bDescriptorType; // USB_DT_CS_INTERFACE + __u8 bDescriptorSubtype; // USB_MS_HEADER + __le16 bcdADC; // 0x0100 + __le16 wTotalLength; // includes Unit and Terminal desc. + __u8 bInCollection; // n + __u8 baInterfaceNr[]; // [n] +} __attribute__ ((packed)); + +#define USB_DT_AC_HEADER_SIZE(n) (8+(n)) + +/* As above, but more useful for defining your own descriptors: */ +#define DECLARE_USB_AC_HEADER_DESCRIPTOR(n) \ +struct usb_ac_header_descriptor_##n { \ + __u8 bLength; \ + __u8 bDescriptorType; \ + __u8 bDescriptorSubtype; \ + __le16 bcdADC; \ + __le16 wTotalLength; \ + __u8 bInCollection; \ + __u8 baInterfaceNr[n]; \ +} __attribute__ ((packed)) + +#endif diff --git a/include/linux/usb/midi.h b/include/linux/usb/midi.h new file mode 100644 index 000000000000..11a97d5ffd34 --- /dev/null +++ b/include/linux/usb/midi.h @@ -0,0 +1,112 @@ +/* + * -- USB MIDI definitions. + * + * Copyright (C) 2006 Thumtronics Pty Ltd. + * Developed for Thumtronics by Grey Innovation + * Ben Williamson + * + * This software is distributed under the terms of the GNU General Public + * License ("GPL") version 2, as published by the Free Software Foundation. + * + * This file holds USB constants and structures defined + * by the USB Device Class Definition for MIDI Devices. + * Comments below reference relevant sections of that document: + * + * http://www.usb.org/developers/devclass_docs/midi10.pdf + */ + +#ifndef __LINUX_USB_MIDI_H +#define __LINUX_USB_MIDI_H + +#include + +/* A.1 MS Class-Specific Interface Descriptor Subtypes */ +#define USB_MS_HEADER 0x01 +#define USB_MS_MIDI_IN_JACK 0x02 +#define USB_MS_MIDI_OUT_JACK 0x03 +#define USB_MS_ELEMENT 0x04 + +/* A.2 MS Class-Specific Endpoint Descriptor Subtypes */ +#define USB_MS_GENERAL 0x01 + +/* A.3 MS MIDI IN and OUT Jack Types */ +#define USB_MS_EMBEDDED 0x01 +#define USB_MS_EXTERNAL 0x02 + +/* 6.1.2.1 Class-Specific MS Interface Header Descriptor */ +struct usb_ms_header_descriptor { + __u8 bLength; + __u8 bDescriptorType; + __u8 bDescriptorSubtype; + __le16 bcdMSC; + __le16 wTotalLength; +} __attribute__ ((packed)); + +#define USB_DT_MS_HEADER_SIZE 7 + +/* 6.1.2.2 MIDI IN Jack Descriptor */ +struct usb_midi_in_jack_descriptor { + __u8 bLength; + __u8 bDescriptorType; // USB_DT_CS_INTERFACE + __u8 bDescriptorSubtype; // USB_MS_MIDI_IN_JACK + __u8 bJackType; // USB_MS_EMBEDDED/EXTERNAL + __u8 bJackID; + __u8 iJack; +} __attribute__ ((packed)); + +#define USB_DT_MIDI_IN_SIZE 6 + +struct usb_midi_source_pin { + __u8 baSourceID; + __u8 baSourcePin; +} __attribute__ ((packed)); + +/* 6.1.2.3 MIDI OUT Jack Descriptor */ +struct usb_midi_out_jack_descriptor { + __u8 bLength; + __u8 bDescriptorType; // USB_DT_CS_INTERFACE + __u8 bDescriptorSubtype; // USB_MS_MIDI_OUT_JACK + __u8 bJackType; // USB_MS_EMBEDDED/EXTERNAL + __u8 bJackID; + __u8 bNrInputPins; // p + struct usb_midi_source_pin pins[]; // [p] + /*__u8 iJack; -- ommitted due to variable-sized pins[] */ +} __attribute__ ((packed)); + +#define USB_DT_MIDI_OUT_SIZE(p) (7 + 2 * (p)) + +/* As above, but more useful for defining your own descriptors: */ +#define DECLARE_USB_MIDI_OUT_JACK_DESCRIPTOR(p) \ +struct usb_midi_out_jack_descriptor_##p { \ + __u8 bLength; \ + __u8 bDescriptorType; \ + __u8 bDescriptorSubtype; \ + __u8 bJackType; \ + __u8 bJackID; \ + __u8 bNrInputPins; \ + struct usb_midi_source_pin pins[p]; \ + __u8 iJack; \ +} __attribute__ ((packed)) + +/* 6.2.2 Class-Specific MS Bulk Data Endpoint Descriptor */ +struct usb_ms_endpoint_descriptor { + __u8 bLength; // 4+n + __u8 bDescriptorType; // USB_DT_CS_ENDPOINT + __u8 bDescriptorSubtype; // USB_MS_GENERAL + __u8 bNumEmbMIDIJack; // n + __u8 baAssocJackID[]; // [n] +} __attribute__ ((packed)); + +#define USB_DT_MS_ENDPOINT_SIZE(n) (4 + (n)) + +/* As above, but more useful for defining your own descriptors: */ +#define DECLARE_USB_MS_ENDPOINT_DESCRIPTOR(n) \ +struct usb_ms_endpoint_descriptor_##n { \ + __u8 bLength; \ + __u8 bDescriptorType; \ + __u8 bDescriptorSubtype; \ + __u8 bNumEmbMIDIJack; \ + __u8 baAssocJackID[n]; \ +} __attribute__ ((packed)) + +#endif -- cgit v1.2.3 From 3d5b2510f6e361e2203e163c03b93d0026de5629 Mon Sep 17 00:00:00 2001 From: Jesper Juhl Date: Sun, 30 Jul 2006 18:43:43 +0200 Subject: USB: making the kernel -Wshadow clean - USB & completion include/linux/usb.h causes a lot of -Wshadow warnings - fix them. include/linux/usb.h:901: warning: declaration of 'complete' shadows a global declaration include/linux/completion.h:52: warning: shadowed declaration is here include/linux/usb.h:932: warning: declaration of 'complete' shadows a global declaration include/linux/completion.h:52: warning: shadowed declaration is here include/linux/usb.h:967: warning: declaration of 'complete' shadows a global declaration include/linux/completion.h:52: warning: shadowed declaration is here Signed-off-by: Jesper Juhl Signed-off-by: Greg Kroah-Hartman --- include/linux/usb.h | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) (limited to 'include') diff --git a/include/linux/usb.h b/include/linux/usb.h index e22f4b386605..3d5cfa731680 100644 --- a/include/linux/usb.h +++ b/include/linux/usb.h @@ -932,7 +932,7 @@ struct urb * @setup_packet: pointer to the setup_packet buffer * @transfer_buffer: pointer to the transfer buffer * @buffer_length: length of the transfer buffer - * @complete: pointer to the usb_complete_t function + * @complete_fn: pointer to the usb_complete_t function * @context: what to set the urb context to. * * Initializes a control urb with the proper information needed to submit @@ -944,7 +944,7 @@ static inline void usb_fill_control_urb (struct urb *urb, unsigned char *setup_packet, void *transfer_buffer, int buffer_length, - usb_complete_t complete, + usb_complete_t complete_fn, void *context) { spin_lock_init(&urb->lock); @@ -953,7 +953,7 @@ static inline void usb_fill_control_urb (struct urb *urb, urb->setup_packet = setup_packet; urb->transfer_buffer = transfer_buffer; urb->transfer_buffer_length = buffer_length; - urb->complete = complete; + urb->complete = complete_fn; urb->context = context; } @@ -964,7 +964,7 @@ static inline void usb_fill_control_urb (struct urb *urb, * @pipe: the endpoint pipe * @transfer_buffer: pointer to the transfer buffer * @buffer_length: length of the transfer buffer - * @complete: pointer to the usb_complete_t function + * @complete_fn: pointer to the usb_complete_t function * @context: what to set the urb context to. * * Initializes a bulk urb with the proper information needed to submit it @@ -975,7 +975,7 @@ static inline void usb_fill_bulk_urb (struct urb *urb, unsigned int pipe, void *transfer_buffer, int buffer_length, - usb_complete_t complete, + usb_complete_t complete_fn, void *context) { spin_lock_init(&urb->lock); @@ -983,7 +983,7 @@ static inline void usb_fill_bulk_urb (struct urb *urb, urb->pipe = pipe; urb->transfer_buffer = transfer_buffer; urb->transfer_buffer_length = buffer_length; - urb->complete = complete; + urb->complete = complete_fn; urb->context = context; } @@ -994,7 +994,7 @@ static inline void usb_fill_bulk_urb (struct urb *urb, * @pipe: the endpoint pipe * @transfer_buffer: pointer to the transfer buffer * @buffer_length: length of the transfer buffer - * @complete: pointer to the usb_complete_t function + * @complete_fn: pointer to the usb_complete_t function * @context: what to set the urb context to. * @interval: what to set the urb interval to, encoded like * the endpoint descriptor's bInterval value. @@ -1010,7 +1010,7 @@ static inline void usb_fill_int_urb (struct urb *urb, unsigned int pipe, void *transfer_buffer, int buffer_length, - usb_complete_t complete, + usb_complete_t complete_fn, void *context, int interval) { @@ -1019,7 +1019,7 @@ static inline void usb_fill_int_urb (struct urb *urb, urb->pipe = pipe; urb->transfer_buffer = transfer_buffer; urb->transfer_buffer_length = buffer_length; - urb->complete = complete; + urb->complete = complete_fn; urb->context = context; if (dev->speed == USB_SPEED_HIGH) urb->interval = 1 << (interval - 1); -- cgit v1.2.3 From b7cfaaaf86571732c7728e95a2231a860385463c Mon Sep 17 00:00:00 2001 From: "Luiz Fernando N. Capitulino" Date: Wed, 27 Sep 2006 11:58:53 -0700 Subject: USB: New functions to check endpoints info. These functions makes USB driver's code simpler when dealing with endpoints by avoiding them from accessing the endpoint's descriptor structure directly when they only need to know the endpoint's transfer type and/or direction. Please, read each functions' documentation in order to know how to use them. Signed-off-by: Luiz Fernando N. Capitulino Signed-off-by: Greg Kroah-Hartman --- drivers/usb/core/usb.c | 144 +++++++++++++++++++++++++++++++++++++++++++++++++ include/linux/usb.h | 14 +++++ 2 files changed, 158 insertions(+) (limited to 'include') diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c index 9ebfc0fe819d..82837d45b484 100644 --- a/drivers/usb/core/usb.c +++ b/drivers/usb/core/usb.c @@ -482,6 +482,138 @@ int usb_get_current_frame_number(struct usb_device *dev) return dev->bus->op->get_frame_number (dev); } +/** + * usb_endpoint_dir_in - check if the endpoint has IN direction + * @epd: endpoint to be checked + * + * Returns true if the endpoint is of type IN, otherwise it returns false. + */ +int usb_endpoint_dir_in(const struct usb_endpoint_descriptor *epd) +{ + return ((epd->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_IN); +} + +/** + * usb_endpoint_dir_out - check if the endpoint has OUT direction + * @epd: endpoint to be checked + * + * Returns true if the endpoint is of type OUT, otherwise it returns false. + */ +int usb_endpoint_dir_out(const struct usb_endpoint_descriptor *epd) +{ + return ((epd->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT); +} + +/** + * usb_endpoint_xfer_bulk - check if the endpoint has bulk transfer type + * @epd: endpoint to be checked + * + * Returns true if the endpoint is of type bulk, otherwise it returns false. + */ +int usb_endpoint_xfer_bulk(const struct usb_endpoint_descriptor *epd) +{ + return ((epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == + USB_ENDPOINT_XFER_BULK); +} + +/** + * usb_endpoint_xfer_int - check if the endpoint has interrupt transfer type + * @epd: endpoint to be checked + * + * Returns true if the endpoint is of type interrupt, otherwise it returns + * false. + */ +int usb_endpoint_xfer_int(const struct usb_endpoint_descriptor *epd) +{ + return ((epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == + USB_ENDPOINT_XFER_INT); +} + +/** + * usb_endpoint_xfer_isoc - check if the endpoint has isochronous transfer type + * @epd: endpoint to be checked + * + * Returns true if the endpoint is of type isochronous, otherwise it returns + * false. + */ +int usb_endpoint_xfer_isoc(const struct usb_endpoint_descriptor *epd) +{ + return ((epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == + USB_ENDPOINT_XFER_ISOC); +} + +/** + * usb_endpoint_is_bulk_in - check if the endpoint is bulk IN + * @epd: endpoint to be checked + * + * Returns true if the endpoint has bulk transfer type and IN direction, + * otherwise it returns false. + */ +int usb_endpoint_is_bulk_in(const struct usb_endpoint_descriptor *epd) +{ + return (usb_endpoint_xfer_bulk(epd) && usb_endpoint_dir_in(epd)); +} + +/** + * usb_endpoint_is_bulk_out - check if the endpoint is bulk OUT + * @epd: endpoint to be checked + * + * Returns true if the endpoint has bulk transfer type and OUT direction, + * otherwise it returns false. + */ +int usb_endpoint_is_bulk_out(const struct usb_endpoint_descriptor *epd) +{ + return (usb_endpoint_xfer_bulk(epd) && usb_endpoint_dir_out(epd)); +} + +/** + * usb_endpoint_is_int_in - check if the endpoint is interrupt IN + * @epd: endpoint to be checked + * + * Returns true if the endpoint has interrupt transfer type and IN direction, + * otherwise it returns false. + */ +int usb_endpoint_is_int_in(const struct usb_endpoint_descriptor *epd) +{ + return (usb_endpoint_xfer_int(epd) && usb_endpoint_dir_in(epd)); +} + +/** + * usb_endpoint_is_int_out - check if the endpoint is interrupt OUT + * @epd: endpoint to be checked + * + * Returns true if the endpoint has interrupt transfer type and OUT direction, + * otherwise it returns false. + */ +int usb_endpoint_is_int_out(const struct usb_endpoint_descriptor *epd) +{ + return (usb_endpoint_xfer_int(epd) && usb_endpoint_dir_out(epd)); +} + +/** + * usb_endpoint_is_isoc_in - check if the endpoint is isochronous IN + * @epd: endpoint to be checked + * + * Returns true if the endpoint has isochronous transfer type and IN direction, + * otherwise it returns false. + */ +int usb_endpoint_is_isoc_in(const struct usb_endpoint_descriptor *epd) +{ + return (usb_endpoint_xfer_isoc(epd) && usb_endpoint_dir_in(epd)); +} + +/** + * usb_endpoint_is_isoc_out - check if the endpoint is isochronous OUT + * @epd: endpoint to be checked + * + * Returns true if the endpoint has isochronous transfer type and OUT direction, + * otherwise it returns false. + */ +int usb_endpoint_is_isoc_out(const struct usb_endpoint_descriptor *epd) +{ + return (usb_endpoint_xfer_isoc(epd) && usb_endpoint_dir_out(epd)); +} + /*-------------------------------------------------------------------*/ /* * __usb_get_extra_descriptor() finds a descriptor of specific type in the @@ -909,6 +1041,18 @@ EXPORT_SYMBOL(__usb_get_extra_descriptor); EXPORT_SYMBOL(usb_find_device); EXPORT_SYMBOL(usb_get_current_frame_number); +EXPORT_SYMBOL_GPL(usb_endpoint_dir_in); +EXPORT_SYMBOL_GPL(usb_endpoint_dir_out); +EXPORT_SYMBOL_GPL(usb_endpoint_xfer_bulk); +EXPORT_SYMBOL_GPL(usb_endpoint_xfer_int); +EXPORT_SYMBOL_GPL(usb_endpoint_xfer_isoc); +EXPORT_SYMBOL_GPL(usb_endpoint_is_bulk_in); +EXPORT_SYMBOL_GPL(usb_endpoint_is_bulk_out); +EXPORT_SYMBOL_GPL(usb_endpoint_is_int_in); +EXPORT_SYMBOL_GPL(usb_endpoint_is_int_out); +EXPORT_SYMBOL_GPL(usb_endpoint_is_isoc_in); +EXPORT_SYMBOL_GPL(usb_endpoint_is_isoc_out); + EXPORT_SYMBOL (usb_buffer_alloc); EXPORT_SYMBOL (usb_buffer_free); diff --git a/include/linux/usb.h b/include/linux/usb.h index 3d5cfa731680..f807479ef65b 100644 --- a/include/linux/usb.h +++ b/include/linux/usb.h @@ -467,6 +467,20 @@ static inline int usb_make_path (struct usb_device *dev, char *buf, /*-------------------------------------------------------------------------*/ +extern int usb_endpoint_dir_in(const struct usb_endpoint_descriptor *epd); +extern int usb_endpoint_dir_out(const struct usb_endpoint_descriptor *epd); +extern int usb_endpoint_xfer_bulk(const struct usb_endpoint_descriptor *epd); +extern int usb_endpoint_xfer_int(const struct usb_endpoint_descriptor *epd); +extern int usb_endpoint_xfer_isoc(const struct usb_endpoint_descriptor *epd); +extern int usb_endpoint_is_bulk_in(const struct usb_endpoint_descriptor *epd); +extern int usb_endpoint_is_bulk_out(const struct usb_endpoint_descriptor *epd); +extern int usb_endpoint_is_int_in(const struct usb_endpoint_descriptor *epd); +extern int usb_endpoint_is_int_out(const struct usb_endpoint_descriptor *epd); +extern int usb_endpoint_is_isoc_in(const struct usb_endpoint_descriptor *epd); +extern int usb_endpoint_is_isoc_out(const struct usb_endpoint_descriptor *epd); + +/*-------------------------------------------------------------------------*/ + #define USB_DEVICE_ID_MATCH_DEVICE \ (USB_DEVICE_ID_MATCH_VENDOR | USB_DEVICE_ID_MATCH_PRODUCT) #define USB_DEVICE_ID_MATCH_DEV_RANGE \ -- cgit v1.2.3 From dfe0d3ba20e860d0b9a16c4c6524180b8f93be05 Mon Sep 17 00:00:00 2001 From: Matthew Dharm Date: Sun, 13 Aug 2006 17:30:14 -0700 Subject: USB Storage: add rio karma eject support This changeset from Keith Bennett (via Bob Copeland) moves the Karma initializer to its own file and adds trapping of the START_STOP command to enable eject of the device. Signed-off-by: Keith Bennett Signed-off-by: Bob Copeland Signed-off-by: Matthew Dharm Signed-off-by: Greg Kroah-Hartman --- drivers/usb/storage/Kconfig | 12 +++ drivers/usb/storage/Makefile | 1 + drivers/usb/storage/initializers.c | 73 ----------------- drivers/usb/storage/initializers.h | 1 - drivers/usb/storage/karma.c | 155 +++++++++++++++++++++++++++++++++++++ drivers/usb/storage/karma.h | 7 ++ drivers/usb/storage/unusual_devs.h | 2 +- drivers/usb/storage/usb.c | 11 +++ include/linux/usb_usual.h | 3 + 9 files changed, 190 insertions(+), 75 deletions(-) create mode 100644 drivers/usb/storage/karma.c create mode 100644 drivers/usb/storage/karma.h (limited to 'include') diff --git a/drivers/usb/storage/Kconfig b/drivers/usb/storage/Kconfig index be9eec225743..86e48c42d6af 100644 --- a/drivers/usb/storage/Kconfig +++ b/drivers/usb/storage/Kconfig @@ -135,6 +135,18 @@ config USB_STORAGE_ONETOUCH this input in any keybinding software. (e.g. gnome's keyboard short- cuts) +config USB_STORAGE_KARMA + bool "Support for Rio Karma music player" + depends on USB_STORAGE + help + Say Y here to include additional code to support the Rio Karma + USB interface. + + This code places the Rio Karma into mass storage mode, enabling + it to be mounted as an ordinary filesystem. Performing an eject + on the resulting scsi device node returns the Karma to normal + operation. + config USB_LIBUSUAL bool "The shared table of common (or usual) storage devices" depends on USB diff --git a/drivers/usb/storage/Makefile b/drivers/usb/storage/Makefile index 8cbba22508a4..023969b4385b 100644 --- a/drivers/usb/storage/Makefile +++ b/drivers/usb/storage/Makefile @@ -20,6 +20,7 @@ usb-storage-obj-$(CONFIG_USB_STORAGE_DATAFAB) += datafab.o usb-storage-obj-$(CONFIG_USB_STORAGE_JUMPSHOT) += jumpshot.o usb-storage-obj-$(CONFIG_USB_STORAGE_ALAUDA) += alauda.o usb-storage-obj-$(CONFIG_USB_STORAGE_ONETOUCH) += onetouch.o +usb-storage-obj-$(CONFIG_USB_STORAGE_KARMA) += karma.o usb-storage-objs := scsiglue.o protocol.o transport.o usb.o \ initializers.o $(usb-storage-obj-y) diff --git a/drivers/usb/storage/initializers.c b/drivers/usb/storage/initializers.c index ab173b30076e..5b06f9240d05 100644 --- a/drivers/usb/storage/initializers.c +++ b/drivers/usb/storage/initializers.c @@ -45,12 +45,6 @@ #include "debug.h" #include "transport.h" -#define RIO_MSC 0x08 -#define RIOP_INIT "RIOP\x00\x01\x08" -#define RIOP_INIT_LEN 7 -#define RIO_SEND_LEN 40 -#define RIO_RECV_LEN 0x200 - /* This places the Shuttle/SCM USB<->SCSI bridge devices in multi-target * mode */ int usb_stor_euscsi_init(struct us_data *us) @@ -97,70 +91,3 @@ int usb_stor_ucr61s2b_init(struct us_data *us) return (res ? -1 : 0); } - -/* Place the Rio Karma into mass storage mode. - * - * The initialization begins by sending 40 bytes starting - * RIOP\x00\x01\x08\x00, which the device will ack with a 512-byte - * packet with the high four bits set and everything else null. - * - * Next, we send RIOP\x80\x00\x08\x00. Each time, a 512 byte response - * must be read, but we must loop until byte 5 in the response is 0x08, - * indicating success. */ -int rio_karma_init(struct us_data *us) -{ - int result, partial; - char *recv; - unsigned long timeout; - - // us->iobuf is big enough to hold cmd but not receive - if (!(recv = kmalloc(RIO_RECV_LEN, GFP_KERNEL))) - goto die_nomem; - - US_DEBUGP("Initializing Karma...\n"); - - memset(us->iobuf, 0, RIO_SEND_LEN); - memcpy(us->iobuf, RIOP_INIT, RIOP_INIT_LEN); - - result = usb_stor_bulk_transfer_buf(us, us->send_bulk_pipe, - us->iobuf, RIO_SEND_LEN, &partial); - if (result != USB_STOR_XFER_GOOD) - goto die; - - result = usb_stor_bulk_transfer_buf(us, us->recv_bulk_pipe, - recv, RIO_RECV_LEN, &partial); - if (result != USB_STOR_XFER_GOOD) - goto die; - - us->iobuf[4] = 0x80; - us->iobuf[5] = 0; - timeout = jiffies + msecs_to_jiffies(3000); - for (;;) { - US_DEBUGP("Sending init command\n"); - result = usb_stor_bulk_transfer_buf(us, us->send_bulk_pipe, - us->iobuf, RIO_SEND_LEN, &partial); - if (result != USB_STOR_XFER_GOOD) - goto die; - - result = usb_stor_bulk_transfer_buf(us, us->recv_bulk_pipe, - recv, RIO_RECV_LEN, &partial); - if (result != USB_STOR_XFER_GOOD) - goto die; - - if (recv[5] == RIO_MSC) - break; - if (time_after(jiffies, timeout)) - goto die; - msleep(10); - } - US_DEBUGP("Karma initialized.\n"); - kfree(recv); - return 0; - -die: - kfree(recv); -die_nomem: - US_DEBUGP("Could not initialize karma.\n"); - return USB_STOR_TRANSPORT_FAILED; -} - diff --git a/drivers/usb/storage/initializers.h b/drivers/usb/storage/initializers.h index 927f7781080f..e2967a4d48a2 100644 --- a/drivers/usb/storage/initializers.h +++ b/drivers/usb/storage/initializers.h @@ -47,4 +47,3 @@ int usb_stor_euscsi_init(struct us_data *us); /* This function is required to activate all four slots on the UCR-61S2B * flash reader */ int usb_stor_ucr61s2b_init(struct us_data *us); -int rio_karma_init(struct us_data *us); diff --git a/drivers/usb/storage/karma.c b/drivers/usb/storage/karma.c new file mode 100644 index 000000000000..0d79ae5683f7 --- /dev/null +++ b/drivers/usb/storage/karma.c @@ -0,0 +1,155 @@ +/* Driver for Rio Karma + * + * (c) 2006 Bob Copeland + * (c) 2006 Keith Bennett + * + * 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 "usb.h" +#include "transport.h" +#include "debug.h" +#include "karma.h" + +#define RIO_PREFIX "RIOP\x00" +#define RIO_PREFIX_LEN 5 +#define RIO_SEND_LEN 40 +#define RIO_RECV_LEN 0x200 + +#define RIO_ENTER_STORAGE 0x1 +#define RIO_LEAVE_STORAGE 0x2 +#define RIO_RESET 0xC + +extern int usb_stor_Bulk_transport(struct scsi_cmnd *, struct us_data *); + +struct karma_data { + int in_storage; + char *recv; +}; + +/* + * Send commands to Rio Karma. + * + * For each command we send 40 bytes starting 'RIOP\0' followed by + * the command number and a sequence number, which the device will ack + * with a 512-byte packet with the high four bits set and everything + * else null. Then we send 'RIOP\x80' followed by a zero and the + * sequence number, until byte 5 in the response repeats the sequence + * number. + */ +static int rio_karma_send_command(char cmd, struct us_data *us) +{ + int result, partial; + unsigned long timeout; + static unsigned char seq = 1; + struct karma_data *data = (struct karma_data *) us->extra; + + US_DEBUGP("karma: sending command %04x\n", cmd); + memset(us->iobuf, 0, RIO_SEND_LEN); + memcpy(us->iobuf, RIO_PREFIX, RIO_PREFIX_LEN); + us->iobuf[5] = cmd; + us->iobuf[6] = seq; + + timeout = jiffies + msecs_to_jiffies(6000); + for (;;) { + result = usb_stor_bulk_transfer_buf(us, us->send_bulk_pipe, + us->iobuf, RIO_SEND_LEN, &partial); + if (result != USB_STOR_XFER_GOOD) + goto err; + + result = usb_stor_bulk_transfer_buf(us, us->recv_bulk_pipe, + data->recv, RIO_RECV_LEN, &partial); + if (result != USB_STOR_XFER_GOOD) + goto err; + + if (data->recv[5] == seq) + break; + + if (time_after(jiffies, timeout)) + goto err; + + us->iobuf[4] = 0x80; + us->iobuf[5] = 0; + msleep(50); + } + + seq++; + if (seq == 0) + seq = 1; + + US_DEBUGP("karma: sent command %04x\n", cmd); + return 0; +err: + US_DEBUGP("karma: command %04x failed\n", cmd); + return USB_STOR_TRANSPORT_FAILED; +} + +/* + * Trap START_STOP and READ_10 to leave/re-enter storage mode. + * Everything else is propagated to the normal bulk layer. + */ +int rio_karma_transport(struct scsi_cmnd *srb, struct us_data *us) +{ + int ret; + struct karma_data *data = (struct karma_data *) us->extra; + + if (srb->cmnd[0] == READ_10 && !data->in_storage) { + ret = rio_karma_send_command(RIO_ENTER_STORAGE, us); + if (ret) + return ret; + + data->in_storage = 1; + return usb_stor_Bulk_transport(srb, us); + } else if (srb->cmnd[0] == START_STOP) { + ret = rio_karma_send_command(RIO_LEAVE_STORAGE, us); + if (ret) + return ret; + + data->in_storage = 0; + return rio_karma_send_command(RIO_RESET, us); + } + return usb_stor_Bulk_transport(srb, us); +} + +static void rio_karma_destructor(void *extra) +{ + struct karma_data *data = (struct karma_data *) extra; + kfree(data->recv); +} + +int rio_karma_init(struct us_data *us) +{ + int ret = 0; + struct karma_data *data = kzalloc(sizeof(struct karma_data), GFP_NOIO); + if (!data) + goto out; + + data->recv = kmalloc(RIO_RECV_LEN, GFP_NOIO); + if (!data->recv) { + kfree(data); + goto out; + } + + us->extra = data; + us->extra_destructor = rio_karma_destructor; + ret = rio_karma_send_command(RIO_ENTER_STORAGE, us); + data->in_storage = (ret == 0); +out: + return ret; +} diff --git a/drivers/usb/storage/karma.h b/drivers/usb/storage/karma.h new file mode 100644 index 000000000000..8a60972af8c5 --- /dev/null +++ b/drivers/usb/storage/karma.h @@ -0,0 +1,7 @@ +#ifndef _KARMA_USB_H +#define _KARMA_USB_H + +extern int rio_karma_init(struct us_data *us); +extern int rio_karma_transport(struct scsi_cmnd *srb, struct us_data *us); + +#endif diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h index fa49357289c4..1f11c9d44eaa 100644 --- a/drivers/usb/storage/unusual_devs.h +++ b/drivers/usb/storage/unusual_devs.h @@ -221,7 +221,7 @@ UNUSUAL_DEV( 0x0457, 0x0151, 0x0100, 0x0100, UNUSUAL_DEV( 0x045a, 0x5210, 0x0101, 0x0101, "Rio", "Rio Karma", - US_SC_SCSI, US_PR_BULK, rio_karma_init, 0), + US_SC_SCSI, US_PR_KARMA, rio_karma_init, 0), /* Patch submitted by Philipp Friedrich */ UNUSUAL_DEV( 0x0482, 0x0100, 0x0100, 0x0100, diff --git a/drivers/usb/storage/usb.c b/drivers/usb/storage/usb.c index 8d7bdcb5924d..b8d6031b0975 100644 --- a/drivers/usb/storage/usb.c +++ b/drivers/usb/storage/usb.c @@ -98,6 +98,9 @@ #ifdef CONFIG_USB_STORAGE_ALAUDA #include "alauda.h" #endif +#ifdef CONFIG_USB_STORAGE_KARMA +#include "karma.h" +#endif /* Some informational data */ MODULE_AUTHOR("Matthew Dharm "); @@ -646,6 +649,14 @@ static int get_transport(struct us_data *us) break; #endif +#ifdef CONFIG_USB_STORAGE_KARMA + case US_PR_KARMA: + us->transport_name = "Rio Karma/Bulk"; + us->transport = rio_karma_transport; + us->transport_reset = usb_stor_Bulk_reset; + break; +#endif + default: return -EIO; } diff --git a/include/linux/usb_usual.h b/include/linux/usb_usual.h index e7fc5fed5b98..2ae76fe52ff7 100644 --- a/include/linux/usb_usual.h +++ b/include/linux/usb_usual.h @@ -108,6 +108,9 @@ enum { US_DO_ALL_FLAGS }; #ifdef CONFIG_USB_STORAGE_ALAUDA #define US_PR_ALAUDA 0xf4 /* Alauda chipsets */ #endif +#ifdef CONFIG_USB_STORAGE_KARMA +#define US_PR_KARMA 0xf5 /* Rio Karma */ +#endif #define US_PR_DEVICE 0xff /* Use device's value */ -- cgit v1.2.3 From 095bc335360a51623dd8571839bbf465851a7f4b Mon Sep 17 00:00:00 2001 From: "Luiz Fernando N. Capitulino" Date: Sat, 26 Aug 2006 23:48:11 -0300 Subject: USB core: Use const where possible. This patch marks some USB core's functions parameters as const. This improves the design (we're saying to the caller that its parameter is not going to be modified) and may help in compiler's optimisation work. Signed-off-by: Luiz Fernando N. Capitulino Signed-off-by: Greg Kroah-Hartman --- drivers/usb/core/usb.c | 21 +++++++++++---------- drivers/usb/core/usb.h | 4 ++-- include/linux/usb.h | 18 +++++++++--------- 3 files changed, 22 insertions(+), 21 deletions(-) (limited to 'include') diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c index 82837d45b484..4eb98eb3804f 100644 --- a/drivers/usb/core/usb.c +++ b/drivers/usb/core/usb.c @@ -67,7 +67,8 @@ static int nousb; /* Disable USB when built into kernel image */ * Don't call this function unless you are bound to one of the interfaces * on this device or you have locked the device! */ -struct usb_interface *usb_ifnum_to_if(struct usb_device *dev, unsigned ifnum) +struct usb_interface *usb_ifnum_to_if(const struct usb_device *dev, + unsigned ifnum) { struct usb_host_config *config = dev->actconfig; int i; @@ -100,8 +101,8 @@ struct usb_interface *usb_ifnum_to_if(struct usb_device *dev, unsigned ifnum) * Don't call this function unless you are bound to the intf interface * or you have locked the device! */ -struct usb_host_interface *usb_altnum_to_altsetting(struct usb_interface *intf, - unsigned int altnum) +struct usb_host_interface *usb_altnum_to_altsetting(const struct usb_interface *intf, + unsigned int altnum) { int i; @@ -356,7 +357,7 @@ void usb_put_intf(struct usb_interface *intf) * case the driver already owns the device lock.) */ int usb_lock_device_for_reset(struct usb_device *udev, - struct usb_interface *iface) + const struct usb_interface *iface) { unsigned long jiffies_expire = jiffies + HZ; @@ -852,8 +853,8 @@ void usb_buffer_unmap (struct urb *urb) * * Reverse the effect of this call with usb_buffer_unmap_sg(). */ -int usb_buffer_map_sg (struct usb_device *dev, unsigned pipe, - struct scatterlist *sg, int nents) +int usb_buffer_map_sg(const struct usb_device *dev, unsigned pipe, + struct scatterlist *sg, int nents) { struct usb_bus *bus; struct device *controller; @@ -887,8 +888,8 @@ int usb_buffer_map_sg (struct usb_device *dev, unsigned pipe, * Use this when you are re-using a scatterlist's data buffers for * another USB request. */ -void usb_buffer_dmasync_sg (struct usb_device *dev, unsigned pipe, - struct scatterlist *sg, int n_hw_ents) +void usb_buffer_dmasync_sg(const struct usb_device *dev, unsigned pipe, + struct scatterlist *sg, int n_hw_ents) { struct usb_bus *bus; struct device *controller; @@ -913,8 +914,8 @@ void usb_buffer_dmasync_sg (struct usb_device *dev, unsigned pipe, * * Reverses the effect of usb_buffer_map_sg(). */ -void usb_buffer_unmap_sg (struct usb_device *dev, unsigned pipe, - struct scatterlist *sg, int n_hw_ents) +void usb_buffer_unmap_sg(const struct usb_device *dev, unsigned pipe, + struct scatterlist *sg, int n_hw_ents) { struct usb_bus *bus; struct device *controller; diff --git a/drivers/usb/core/usb.h b/drivers/usb/core/usb.h index 6096ead2758c..67da6d0b316f 100644 --- a/drivers/usb/core/usb.h +++ b/drivers/usb/core/usb.h @@ -53,7 +53,7 @@ extern struct usb_device_driver usb_generic_driver; * no such thing as a platform USB device, so we can steal the use * of the platform_data field. */ -static inline int is_usb_device(struct device *dev) +static inline int is_usb_device(const struct device *dev) { return dev->platform_data == &usb_generic_driver; } @@ -78,7 +78,7 @@ static inline void mark_quiesced(struct usb_interface *f) f->is_active = 0; } -static inline int is_active(struct usb_interface *f) +static inline int is_active(const struct usb_interface *f) { return f->is_active; } diff --git a/include/linux/usb.h b/include/linux/usb.h index f807479ef65b..26d8a5f36896 100644 --- a/include/linux/usb.h +++ b/include/linux/usb.h @@ -387,7 +387,7 @@ extern void usb_put_dev(struct usb_device *dev); #define usb_unlock_device(udev) up(&(udev)->dev.sem) #define usb_trylock_device(udev) down_trylock(&(udev)->dev.sem) extern int usb_lock_device_for_reset(struct usb_device *udev, - struct usb_interface *iface); + const struct usb_interface *iface); /* USB port reset for device reinitialization */ extern int usb_reset_device(struct usb_device *dev); @@ -426,10 +426,10 @@ const struct usb_device_id *usb_match_id(struct usb_interface *interface, extern struct usb_interface *usb_find_interface(struct usb_driver *drv, int minor); -extern struct usb_interface *usb_ifnum_to_if(struct usb_device *dev, +extern struct usb_interface *usb_ifnum_to_if(const struct usb_device *dev, unsigned ifnum); extern struct usb_host_interface *usb_altnum_to_altsetting( - struct usb_interface *intf, unsigned int altnum); + const struct usb_interface *intf, unsigned int altnum); /** @@ -1064,14 +1064,14 @@ void usb_buffer_unmap (struct urb *urb); #endif struct scatterlist; -int usb_buffer_map_sg (struct usb_device *dev, unsigned pipe, - struct scatterlist *sg, int nents); +int usb_buffer_map_sg(const struct usb_device *dev, unsigned pipe, + struct scatterlist *sg, int nents); #if 0 -void usb_buffer_dmasync_sg (struct usb_device *dev, unsigned pipe, - struct scatterlist *sg, int n_hw_ents); +void usb_buffer_dmasync_sg(const struct usb_device *dev, unsigned pipe, + struct scatterlist *sg, int n_hw_ents); #endif -void usb_buffer_unmap_sg (struct usb_device *dev, unsigned pipe, - struct scatterlist *sg, int n_hw_ents); +void usb_buffer_unmap_sg(const struct usb_device *dev, unsigned pipe, + struct scatterlist *sg, int n_hw_ents); /*-------------------------------------------------------------------* * SYNCHRONOUS CALL SUPPORT * -- cgit v1.2.3 From 088dc270e1da03744d977cbd9edd4311af142348 Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Mon, 21 Aug 2006 12:08:19 -0400 Subject: usbcore: help drivers to change device configs It's generally a bad idea for USB interface drivers to try to change a device's configuration, and usbcore doesn't provide any way for them to do it. However in a few exceptional circumstances it can make sense. This patch (as767) adds a roundabout mechanism to help drivers that may need it. Signed-off-by: Alan Stern Signed-off-by: Greg Kroah-Hartman --- drivers/usb/core/message.c | 59 ++++++++++++++++++++++++++++++++++++++++++++++ include/linux/usb.h | 3 +++ 2 files changed, 62 insertions(+) (limited to 'include') diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c index 49cfd7928a1c..333b22c68aa4 100644 --- a/drivers/usb/core/message.c +++ b/drivers/usb/core/message.c @@ -1493,6 +1493,65 @@ free_interfaces: return 0; } +struct set_config_request { + struct usb_device *udev; + int config; + struct work_struct work; +}; + +/* Worker routine for usb_driver_set_configuration() */ +static void driver_set_config_work(void *_req) +{ + struct set_config_request *req = _req; + + usb_lock_device(req->udev); + usb_set_configuration(req->udev, req->config); + usb_unlock_device(req->udev); + usb_put_dev(req->udev); + kfree(req); +} + +/** + * usb_driver_set_configuration - Provide a way for drivers to change device configurations + * @udev: the device whose configuration is being updated + * @config: the configuration being chosen. + * Context: In process context, must be able to sleep + * + * Device interface drivers are not allowed to change device configurations. + * This is because changing configurations will destroy the interface the + * driver is bound to and create new ones; it would be like a floppy-disk + * driver telling the computer to replace the floppy-disk drive with a + * tape drive! + * + * Still, in certain specialized circumstances the need may arise. This + * routine gets around the normal restrictions by using a work thread to + * submit the change-config request. + * + * Returns 0 if the request was succesfully queued, error code otherwise. + * The caller has no way to know whether the queued request will eventually + * succeed. + */ +int usb_driver_set_configuration(struct usb_device *udev, int config) +{ + struct set_config_request *req; + + req = kmalloc(sizeof(*req), GFP_KERNEL); + if (!req) + return -ENOMEM; + req->udev = udev; + req->config = config; + INIT_WORK(&req->work, driver_set_config_work, req); + + usb_get_dev(udev); + if (!schedule_work(&req->work)) { + usb_put_dev(udev); + kfree(req); + return -EINVAL; + } + return 0; +} +EXPORT_SYMBOL_GPL(usb_driver_set_configuration); + // synchronous request completion model EXPORT_SYMBOL(usb_control_msg); EXPORT_SYMBOL(usb_bulk_msg); diff --git a/include/linux/usb.h b/include/linux/usb.h index 26d8a5f36896..f104efa04d79 100644 --- a/include/linux/usb.h +++ b/include/linux/usb.h @@ -1099,6 +1099,9 @@ extern int usb_clear_halt(struct usb_device *dev, int pipe); extern int usb_reset_configuration(struct usb_device *dev); extern int usb_set_interface(struct usb_device *dev, int ifnum, int alternate); +/* this request isn't really synchronous, but it belongs with the others */ +extern int usb_driver_set_configuration(struct usb_device *udev, int config); + /* * timeouts, in milliseconds, used for sending/receiving control messages * they typically complete within a few frames (msec) after they're issued -- cgit v1.2.3 From a6d2bb9ff919b4685bd684620ec7a1ffa8bf2349 Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Wed, 30 Aug 2006 11:27:36 -0400 Subject: USB: remove struct usb_operations All of the currently-supported USB host controller drivers use the HCD bus-glue framework. As part of the program for flattening out the glue layer, this patch (as769) removes the usb_operations structure. All function calls now go directly to the HCD routines (slightly renamed to remain within the "usb_" namespace). The patch also removes usb_alloc_bus(), because it's not useful in the HCD framework and it wasn't referenced anywhere. Signed-off-by: Alan Stern Signed-off-by: Greg Kroah-Hartman --- drivers/usb/core/hcd.c | 49 +++++----------------------------------------- drivers/usb/core/hcd.h | 32 +++++++----------------------- drivers/usb/core/message.c | 4 ++-- drivers/usb/core/urb.c | 13 +++++------- drivers/usb/core/usb.c | 10 +++++----- include/linux/usb.h | 4 ---- 6 files changed, 24 insertions(+), 88 deletions(-) (limited to 'include') diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c index ea20a3a5a9b9..2102c4deec1e 100644 --- a/drivers/usb/core/hcd.c +++ b/drivers/usb/core/hcd.c @@ -731,30 +731,6 @@ static void usb_bus_init (struct usb_bus *bus) kref_init(&bus->kref); } -/** - * usb_alloc_bus - creates a new USB host controller structure - * @op: pointer to a struct usb_operations that this bus structure should use - * Context: !in_interrupt() - * - * Creates a USB host controller bus structure with the specified - * usb_operations and initializes all the necessary internal objects. - * - * If no memory is available, NULL is returned. - * - * The caller should call usb_put_bus() when it is finished with the structure. - */ -struct usb_bus *usb_alloc_bus (struct usb_operations *op) -{ - struct usb_bus *bus; - - bus = kzalloc (sizeof *bus, GFP_KERNEL); - if (!bus) - return NULL; - usb_bus_init (bus); - bus->op = op; - return bus; -} - /*-------------------------------------------------------------------------*/ /** @@ -1102,7 +1078,7 @@ static void urb_unlink (struct urb *urb) * expects usb_submit_urb() to have sanity checked and conditioned all * inputs in the urb */ -static int hcd_submit_urb (struct urb *urb, gfp_t mem_flags) +int usb_hcd_submit_urb (struct urb *urb, gfp_t mem_flags) { int status; struct usb_hcd *hcd = urb->dev->bus->hcpriv; @@ -1211,7 +1187,7 @@ done: /*-------------------------------------------------------------------------*/ /* called in any context */ -static int hcd_get_frame_number (struct usb_device *udev) +int usb_hcd_get_frame_number (struct usb_device *udev) { struct usb_hcd *hcd = (struct usb_hcd *)udev->bus->hcpriv; if (!HC_IS_RUNNING (hcd->state)) @@ -1253,7 +1229,7 @@ unlink1 (struct usb_hcd *hcd, struct urb *urb) * caller guarantees urb won't be recycled till both unlink() * and the urb's completion function return */ -static int hcd_unlink_urb (struct urb *urb, int status) +int usb_hcd_unlink_urb (struct urb *urb, int status) { struct usb_host_endpoint *ep; struct usb_hcd *hcd = NULL; @@ -1351,8 +1327,8 @@ done: * example: a qh stored in ep->hcpriv, holding state related to endpoint * type, maxpacket size, toggle, halt status, and scheduling. */ -static void -hcd_endpoint_disable (struct usb_device *udev, struct usb_host_endpoint *ep) +void usb_hcd_endpoint_disable (struct usb_device *udev, + struct usb_host_endpoint *ep) { struct usb_hcd *hcd; struct urb *urb; @@ -1589,20 +1565,6 @@ EXPORT_SYMBOL (usb_bus_start_enum); /*-------------------------------------------------------------------------*/ -/* - * usb_hcd_operations - adapts usb_bus framework to HCD framework (bus glue) - */ -static struct usb_operations usb_hcd_operations = { - .get_frame_number = hcd_get_frame_number, - .submit_urb = hcd_submit_urb, - .unlink_urb = hcd_unlink_urb, - .buffer_alloc = hcd_buffer_alloc, - .buffer_free = hcd_buffer_free, - .disable = hcd_endpoint_disable, -}; - -/*-------------------------------------------------------------------------*/ - /** * usb_hcd_giveback_urb - return URB from HCD to device driver * @hcd: host controller returning the URB @@ -1744,7 +1706,6 @@ struct usb_hcd *usb_create_hcd (const struct hc_driver *driver, dev_set_drvdata(dev, hcd); usb_bus_init(&hcd->self); - hcd->self.op = &usb_hcd_operations; hcd->self.hcpriv = hcd; hcd->self.release = &hcd_release; hcd->self.controller = dev; diff --git a/drivers/usb/core/hcd.h b/drivers/usb/core/hcd.h index fc71a08a1af4..83e229914797 100644 --- a/drivers/usb/core/hcd.h +++ b/drivers/usb/core/hcd.h @@ -139,28 +139,6 @@ struct hcd_timeout { /* timeouts we allocate */ /*-------------------------------------------------------------------------*/ -/* - * FIXME usb_operations should vanish or become hc_driver, - * when usb_bus and usb_hcd become the same thing. - */ - -struct usb_operations { - int (*get_frame_number) (struct usb_device *usb_dev); - int (*submit_urb) (struct urb *urb, gfp_t mem_flags); - int (*unlink_urb) (struct urb *urb, int status); - - /* allocate dma-consistent buffer for URB_DMA_NOMAPPING */ - void *(*buffer_alloc)(struct usb_bus *bus, size_t size, - gfp_t mem_flags, - dma_addr_t *dma); - void (*buffer_free)(struct usb_bus *bus, size_t size, - void *addr, dma_addr_t dma); - - void (*disable)(struct usb_device *udev, - struct usb_host_endpoint *ep); -}; - -/* each driver provides one of these, and hardware init support */ struct pt_regs; @@ -222,7 +200,13 @@ struct hc_driver { /* Needed only if port-change IRQs are level-triggered */ }; -extern void usb_hcd_giveback_urb (struct usb_hcd *hcd, struct urb *urb, struct pt_regs *regs); +extern int usb_hcd_submit_urb (struct urb *urb, gfp_t mem_flags); +extern int usb_hcd_unlink_urb (struct urb *urb, int status); +extern void usb_hcd_giveback_urb (struct usb_hcd *hcd, struct urb *urb, + struct pt_regs *regs); +extern void usb_hcd_endpoint_disable (struct usb_device *udev, + struct usb_host_endpoint *ep); +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); @@ -361,8 +345,6 @@ extern long usb_calc_bus_time (int speed, int is_input, /*-------------------------------------------------------------------------*/ -extern struct usb_bus *usb_alloc_bus (struct usb_operations *); - extern void usb_set_device_state(struct usb_device *udev, enum usb_device_state new_state); diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c index 333b22c68aa4..1580c81a0db7 100644 --- a/drivers/usb/core/message.c +++ b/drivers/usb/core/message.c @@ -984,8 +984,8 @@ void usb_disable_endpoint(struct usb_device *dev, unsigned int epaddr) ep = dev->ep_in[epnum]; dev->ep_in[epnum] = NULL; } - if (ep && dev->bus && dev->bus->op && dev->bus->op->disable) - dev->bus->op->disable(dev, ep); + if (ep && dev->bus) + usb_hcd_endpoint_disable(dev, ep); } /** diff --git a/drivers/usb/core/urb.c b/drivers/usb/core/urb.c index 9864988377c7..576919927f53 100644 --- a/drivers/usb/core/urb.c +++ b/drivers/usb/core/urb.c @@ -221,7 +221,6 @@ int usb_submit_urb(struct urb *urb, gfp_t mem_flags) { int pipe, temp, max; struct usb_device *dev; - struct usb_operations *op; int is_out; if (!urb || urb->hcpriv || !urb->complete) @@ -233,8 +232,6 @@ int usb_submit_urb(struct urb *urb, gfp_t mem_flags) if (dev->bus->controller->power.power_state.event != PM_EVENT_ON || dev->state == USB_STATE_SUSPENDED) return -EHOSTUNREACH; - if (!(op = dev->bus->op) || !op->submit_urb) - return -ENODEV; urb->status = -EINPROGRESS; urb->actual_length = 0; @@ -376,7 +373,7 @@ int usb_submit_urb(struct urb *urb, gfp_t mem_flags) urb->interval = temp; } - return op->submit_urb (urb, mem_flags); + return usb_hcd_submit_urb (urb, mem_flags); } /*-------------------------------------------------------------------*/ @@ -440,9 +437,9 @@ int usb_unlink_urb(struct urb *urb) { if (!urb) return -EINVAL; - if (!(urb->dev && urb->dev->bus && urb->dev->bus->op)) + if (!(urb->dev && urb->dev->bus)) return -ENODEV; - return urb->dev->bus->op->unlink_urb(urb, -ECONNRESET); + return usb_hcd_unlink_urb(urb, -ECONNRESET); } /** @@ -468,13 +465,13 @@ int usb_unlink_urb(struct urb *urb) void usb_kill_urb(struct urb *urb) { might_sleep(); - if (!(urb && urb->dev && urb->dev->bus && urb->dev->bus->op)) + if (!(urb && urb->dev && urb->dev->bus)) return; spin_lock_irq(&urb->lock); ++urb->reject; spin_unlock_irq(&urb->lock); - urb->dev->bus->op->unlink_urb(urb, -ENOENT); + usb_hcd_unlink_urb(urb, -ENOENT); wait_event(usb_kill_urb_queue, atomic_read(&urb->use_count) == 0); spin_lock_irq(&urb->lock); diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c index 4eb98eb3804f..7ab9d29215f8 100644 --- a/drivers/usb/core/usb.c +++ b/drivers/usb/core/usb.c @@ -480,7 +480,7 @@ exit: */ int usb_get_current_frame_number(struct usb_device *dev) { - return dev->bus->op->get_frame_number (dev); + return usb_hcd_get_frame_number (dev); } /** @@ -677,9 +677,9 @@ void *usb_buffer_alloc ( dma_addr_t *dma ) { - if (!dev || !dev->bus || !dev->bus->op || !dev->bus->op->buffer_alloc) + if (!dev || !dev->bus) return NULL; - return dev->bus->op->buffer_alloc (dev->bus, size, mem_flags, dma); + return hcd_buffer_alloc (dev->bus, size, mem_flags, dma); } /** @@ -700,11 +700,11 @@ void usb_buffer_free ( dma_addr_t dma ) { - if (!dev || !dev->bus || !dev->bus->op || !dev->bus->op->buffer_free) + if (!dev || !dev->bus) return; if (!addr) return; - dev->bus->op->buffer_free (dev->bus, size, addr, dma); + hcd_buffer_free (dev->bus, size, addr, dma); } /** diff --git a/include/linux/usb.h b/include/linux/usb.h index f104efa04d79..4709033f8fa7 100644 --- a/include/linux/usb.h +++ b/include/linux/usb.h @@ -257,8 +257,6 @@ int __usb_get_extra_descriptor(char *buffer, unsigned size, /* ----------------------------------------------------------------------- */ -struct usb_operations; - /* USB device number allocation bitmap */ struct usb_devmap { unsigned long devicemap[128 / (8*sizeof(unsigned long))]; @@ -279,7 +277,6 @@ struct usb_bus { * round-robin allocation */ struct usb_devmap devmap; /* device address allocation map */ - struct usb_operations *op; /* Operations (specific to the HC) */ struct usb_device *root_hub; /* Root hub */ struct list_head bus_list; /* list of busses */ void *hcpriv; /* Host Controller private data */ @@ -1051,7 +1048,6 @@ extern int usb_submit_urb(struct urb *urb, gfp_t mem_flags); extern int usb_unlink_urb(struct urb *urb); extern void usb_kill_urb(struct urb *urb); -#define HAVE_USB_BUFFERS void *usb_buffer_alloc (struct usb_device *dev, size_t size, gfp_t mem_flags, dma_addr_t *dma); void usb_buffer_free (struct usb_device *dev, size_t size, -- cgit v1.2.3 From dd990f16a39d4e615c0b70a0ab50b79b32bfb16d Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Wed, 30 Aug 2006 11:29:56 -0400 Subject: usbcore: Add flag for whether a host controller uses DMA This patch (as770b) introduces a new field to usb_bus: a flag indicating whether or not the host controller uses DMA. This serves to encapsulate the computation. It also means we will have only one spot to update if the DMA API changes. Signed-off-by: Alan Stern Signed-off-by: Greg Kroah-Hartman --- drivers/usb/core/hcd.c | 8 +++++--- include/linux/usb.h | 1 + 2 files changed, 6 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c index 2102c4deec1e..0cc14206920a 100644 --- a/drivers/usb/core/hcd.c +++ b/drivers/usb/core/hcd.c @@ -1152,7 +1152,7 @@ doit: /* lower level hcd code should use *_dma exclusively, * unless it uses pio or talks to another transport. */ - if (hcd->self.controller->dma_mask) { + if (hcd->self.uses_dma) { if (usb_pipecontrol (urb->pipe) && !(urb->transfer_flags & URB_NO_SETUP_DMA_MAP)) urb->setup_dma = dma_map_single ( @@ -1585,8 +1585,9 @@ void usb_hcd_giveback_urb (struct usb_hcd *hcd, struct urb *urb, struct pt_regs at_root_hub = (urb->dev == hcd->self.root_hub); urb_unlink (urb); - /* lower level hcd code should use *_dma exclusively */ - if (hcd->self.controller->dma_mask && !at_root_hub) { + /* lower level hcd code should use *_dma exclusively if the + * host controller does DMA */ + if (hcd->self.uses_dma && !at_root_hub) { if (usb_pipecontrol (urb->pipe) && !(urb->transfer_flags & URB_NO_SETUP_DMA_MAP)) dma_unmap_single (hcd->self.controller, urb->setup_dma, @@ -1710,6 +1711,7 @@ struct usb_hcd *usb_create_hcd (const struct hc_driver *driver, hcd->self.release = &hcd_release; hcd->self.controller = dev; hcd->self.bus_name = bus_name; + hcd->self.uses_dma = (dev->dma_mask != NULL); init_timer(&hcd->rh_timer); hcd->rh_timer.function = rh_timer_func; diff --git a/include/linux/usb.h b/include/linux/usb.h index 4709033f8fa7..09661759621f 100644 --- a/include/linux/usb.h +++ b/include/linux/usb.h @@ -269,6 +269,7 @@ 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) */ + 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 */ unsigned b_hnp_enable:1; /* OTG: did A-Host enable HNP? */ -- cgit v1.2.3 From 1720058343fa43a1a25bfad9e62ea06e7e9743b6 Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Wed, 30 Aug 2006 11:32:52 -0400 Subject: usbcore: trim down usb_bus structure As part of the ongoing program to flatten out the HCD bus-glue layer, this patch (as771b) eliminates the hcpriv, release, and kref fields from struct usb_bus. hcpriv and release were not being used for anything worthwhile, and kref has been moved into the enclosing usb_hcd structure. Along with those changes, the patch gets rid of usb_bus_get and usb_bus_put, replacing them with usb_get_hcd and usb_put_hcd. The one interesting aspect is that the dev_set_drvdata call was removed from usb_put_hcd, where it clearly doesn't belong. This means the driver private data won't get reset to NULL. It shouldn't cause any problems, since the private data is undefined when no driver is bound. Signed-off-by: Alan Stern Signed-off-by: Greg Kroah-Hartman --- drivers/usb/core/buffer.c | 4 +-- drivers/usb/core/hcd.c | 67 +++++++++++++++--------------------------- drivers/usb/core/hcd.h | 13 ++++---- drivers/usb/core/usb.c | 5 ++-- drivers/usb/gadget/dummy_hcd.c | 8 ++--- drivers/usb/host/ehci-dbg.c | 6 ++-- drivers/usb/host/ohci-dbg.c | 6 ++-- drivers/usb/mon/mon_main.c | 6 ++-- include/linux/usb.h | 3 -- 9 files changed, 44 insertions(+), 74 deletions(-) (limited to 'include') diff --git a/drivers/usb/core/buffer.c b/drivers/usb/core/buffer.c index f4f4ef0f377a..840442a25b61 100644 --- a/drivers/usb/core/buffer.c +++ b/drivers/usb/core/buffer.c @@ -104,7 +104,7 @@ void *hcd_buffer_alloc ( dma_addr_t *dma ) { - struct usb_hcd *hcd = bus->hcpriv; + struct usb_hcd *hcd = bus_to_hcd(bus); int i; /* some USB hosts just use PIO */ @@ -127,7 +127,7 @@ void hcd_buffer_free ( dma_addr_t dma ) { - struct usb_hcd *hcd = bus->hcpriv; + struct usb_hcd *hcd = bus_to_hcd(bus); int i; if (!addr) diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c index 0cc14206920a..9dfc812de034 100644 --- a/drivers/usb/core/hcd.c +++ b/drivers/usb/core/hcd.c @@ -664,31 +664,6 @@ static int usb_rh_urb_dequeue (struct usb_hcd *hcd, struct urb *urb) /*-------------------------------------------------------------------------*/ -/* exported only within usbcore */ -struct usb_bus *usb_bus_get(struct usb_bus *bus) -{ - if (bus) - kref_get(&bus->kref); - return bus; -} - -static void usb_host_release(struct kref *kref) -{ - struct usb_bus *bus = container_of(kref, struct usb_bus, kref); - - if (bus->release) - bus->release(bus); -} - -/* exported only within usbcore */ -void usb_bus_put(struct usb_bus *bus) -{ - if (bus) - kref_put(&bus->kref, usb_host_release); -} - -/*-------------------------------------------------------------------------*/ - static struct class *usb_host_class; int usb_host_init(void) @@ -720,15 +695,12 @@ static void usb_bus_init (struct usb_bus *bus) bus->devnum_next = 1; bus->root_hub = NULL; - bus->hcpriv = NULL; bus->busnum = -1; bus->bandwidth_allocated = 0; bus->bandwidth_int_reqs = 0; bus->bandwidth_isoc_reqs = 0; INIT_LIST_HEAD (&bus->bus_list); - - kref_init(&bus->kref); } /*-------------------------------------------------------------------------*/ @@ -1081,7 +1053,7 @@ static void urb_unlink (struct urb *urb) int usb_hcd_submit_urb (struct urb *urb, gfp_t mem_flags) { int status; - struct usb_hcd *hcd = urb->dev->bus->hcpriv; + struct usb_hcd *hcd = bus_to_hcd(urb->dev->bus); struct usb_host_endpoint *ep; unsigned long flags; @@ -1189,7 +1161,8 @@ done: /* called in any context */ int usb_hcd_get_frame_number (struct usb_device *udev) { - struct usb_hcd *hcd = (struct usb_hcd *)udev->bus->hcpriv; + struct usb_hcd *hcd = bus_to_hcd(udev->bus); + if (!HC_IS_RUNNING (hcd->state)) return -ESHUTDOWN; return hcd->driver->get_frame_number (hcd); @@ -1262,7 +1235,7 @@ int usb_hcd_unlink_urb (struct urb *urb, int status) spin_lock (&hcd_data_lock); sys = &urb->dev->dev; - hcd = urb->dev->bus->hcpriv; + hcd = bus_to_hcd(urb->dev->bus); if (hcd == NULL) { retval = -ENODEV; goto done; @@ -1333,7 +1306,7 @@ void usb_hcd_endpoint_disable (struct usb_device *udev, struct usb_hcd *hcd; struct urb *urb; - hcd = udev->bus->hcpriv; + hcd = bus_to_hcd(udev->bus); WARN_ON (!HC_IS_RUNNING (hcd->state) && hcd->state != HC_STATE_HALT && udev->state != USB_STATE_NOTATTACHED); @@ -1673,14 +1646,6 @@ EXPORT_SYMBOL_GPL (usb_hc_died); /*-------------------------------------------------------------------------*/ -static void hcd_release (struct usb_bus *bus) -{ - struct usb_hcd *hcd; - - hcd = container_of(bus, struct usb_hcd, self); - kfree(hcd); -} - /** * usb_create_hcd - create and initialize an HCD structure * @driver: HC driver that will use this hcd @@ -1705,10 +1670,9 @@ struct usb_hcd *usb_create_hcd (const struct hc_driver *driver, return NULL; } dev_set_drvdata(dev, hcd); + kref_init(&hcd->kref); usb_bus_init(&hcd->self); - hcd->self.hcpriv = hcd; - hcd->self.release = &hcd_release; hcd->self.controller = dev; hcd->self.bus_name = bus_name; hcd->self.uses_dma = (dev->dma_mask != NULL); @@ -1725,10 +1689,25 @@ struct usb_hcd *usb_create_hcd (const struct hc_driver *driver, } EXPORT_SYMBOL (usb_create_hcd); +static void hcd_release (struct kref *kref) +{ + struct usb_hcd *hcd = container_of (kref, struct usb_hcd, kref); + + kfree(hcd); +} + +struct usb_hcd *usb_get_hcd (struct usb_hcd *hcd) +{ + if (hcd) + kref_get (&hcd->kref); + return hcd; +} +EXPORT_SYMBOL (usb_get_hcd); + void usb_put_hcd (struct usb_hcd *hcd) { - dev_set_drvdata(hcd->self.controller, NULL); - usb_bus_put(&hcd->self); + if (hcd) + kref_put (&hcd->kref, hcd_release); } EXPORT_SYMBOL (usb_put_hcd); diff --git a/drivers/usb/core/hcd.h b/drivers/usb/core/hcd.h index 83e229914797..7a2bcba2ae61 100644 --- a/drivers/usb/core/hcd.h +++ b/drivers/usb/core/hcd.h @@ -55,12 +55,13 @@ /*-------------------------------------------------------------------------*/ -struct usb_hcd { /* usb_bus.hcpriv points to this */ +struct usb_hcd { /* * housekeeping */ struct usb_bus self; /* hcd is-a bus */ + struct kref kref; /* reference counter */ const char *product_desc; /* product/vendor string */ char irq_descr[24]; /* driver + bus # */ @@ -129,8 +130,10 @@ static inline struct usb_bus *hcd_to_bus (struct usb_hcd *hcd) return &hcd->self; } - -// urb.hcpriv is really hardware-specific +static inline struct usb_hcd *bus_to_hcd (struct usb_bus *bus) +{ + return container_of(bus, struct usb_hcd, self); +} struct hcd_timeout { /* timeouts we allocate */ struct list_head timeout_list; @@ -210,6 +213,7 @@ 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); +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, unsigned int irqnum, unsigned long irqflags); @@ -356,9 +360,6 @@ extern struct list_head usb_bus_list; extern struct mutex usb_bus_list_lock; extern wait_queue_head_t usb_kill_urb_queue; -extern struct usb_bus *usb_bus_get (struct usb_bus *bus); -extern void usb_bus_put (struct usb_bus *bus); - extern void usb_enable_root_hub_irq (struct usb_bus *bus); extern int usb_find_interface_driver (struct usb_device *dev, diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c index 7ab9d29215f8..b0c0a993338f 100644 --- a/drivers/usb/core/usb.c +++ b/drivers/usb/core/usb.c @@ -169,7 +169,7 @@ static void usb_release_dev(struct device *dev) udev = to_usb_device(dev); usb_destroy_configuration(udev); - usb_bus_put(udev->bus); + usb_put_hcd(bus_to_hcd(udev->bus)); kfree(udev->product); kfree(udev->manufacturer); kfree(udev->serial); @@ -197,8 +197,7 @@ usb_alloc_dev(struct usb_device *parent, struct usb_bus *bus, unsigned port1) if (!dev) return NULL; - bus = usb_bus_get(bus); - if (!bus) { + if (!usb_get_hcd(bus_to_hcd(bus))) { kfree(dev); return NULL; } diff --git a/drivers/usb/gadget/dummy_hcd.c b/drivers/usb/gadget/dummy_hcd.c index 7d1c22c34957..fdab97a27c08 100644 --- a/drivers/usb/gadget/dummy_hcd.c +++ b/drivers/usb/gadget/dummy_hcd.c @@ -889,11 +889,9 @@ EXPORT_SYMBOL (net2280_set_fifo_mode); static void dummy_gadget_release (struct device *dev) { -#if 0 /* usb_bus_put isn't EXPORTed! */ struct dummy *dum = gadget_dev_to_dummy (dev); - usb_bus_put (&dummy_to_hcd (dum)->self); -#endif + usb_put_hcd (dummy_to_hcd (dum)); } static int dummy_udc_probe (struct platform_device *pdev) @@ -915,9 +913,7 @@ static int dummy_udc_probe (struct platform_device *pdev) if (rc < 0) return rc; -#if 0 /* usb_bus_get isn't EXPORTed! */ - usb_bus_get (&dummy_to_hcd (dum)->self); -#endif + usb_get_hcd (dummy_to_hcd (dum)); platform_set_drvdata (pdev, dum); device_create_file (&dum->gadget.dev, &dev_attr_function); diff --git a/drivers/usb/host/ehci-dbg.c b/drivers/usb/host/ehci-dbg.c index 65ac9fef3a7c..215ce6d06394 100644 --- a/drivers/usb/host/ehci-dbg.c +++ b/drivers/usb/host/ehci-dbg.c @@ -451,7 +451,7 @@ show_async (struct class_device *class_dev, char *buf) *buf = 0; bus = class_get_devdata(class_dev); - hcd = bus->hcpriv; + hcd = bus_to_hcd(bus); ehci = hcd_to_ehci (hcd); next = buf; size = PAGE_SIZE; @@ -497,7 +497,7 @@ show_periodic (struct class_device *class_dev, char *buf) seen_count = 0; bus = class_get_devdata(class_dev); - hcd = bus->hcpriv; + hcd = bus_to_hcd(bus); ehci = hcd_to_ehci (hcd); next = buf; size = PAGE_SIZE; @@ -634,7 +634,7 @@ show_registers (struct class_device *class_dev, char *buf) static char label [] = ""; bus = class_get_devdata(class_dev); - hcd = bus->hcpriv; + hcd = bus_to_hcd(bus); ehci = hcd_to_ehci (hcd); next = buf; size = PAGE_SIZE; diff --git a/drivers/usb/host/ohci-dbg.c b/drivers/usb/host/ohci-dbg.c index da52609a9290..534d07dcb824 100644 --- a/drivers/usb/host/ohci-dbg.c +++ b/drivers/usb/host/ohci-dbg.c @@ -477,7 +477,7 @@ show_async (struct class_device *class_dev, char *buf) unsigned long flags; bus = class_get_devdata(class_dev); - hcd = bus->hcpriv; + hcd = bus_to_hcd(bus); ohci = hcd_to_ohci(hcd); /* display control and bulk lists together, for simplicity */ @@ -510,7 +510,7 @@ show_periodic (struct class_device *class_dev, char *buf) seen_count = 0; bus = class_get_devdata(class_dev); - hcd = bus->hcpriv; + hcd = bus_to_hcd(bus); ohci = hcd_to_ohci(hcd); next = buf; size = PAGE_SIZE; @@ -607,7 +607,7 @@ show_registers (struct class_device *class_dev, char *buf) u32 rdata; bus = class_get_devdata(class_dev); - hcd = bus->hcpriv; + hcd = bus_to_hcd(bus); ohci = hcd_to_ohci(hcd); regs = ohci->regs; next = buf; diff --git a/drivers/usb/mon/mon_main.c b/drivers/usb/mon/mon_main.c index 275a66f83058..e0ed36cdfd8b 100644 --- a/drivers/usb/mon/mon_main.c +++ b/drivers/usb/mon/mon_main.c @@ -265,7 +265,6 @@ static void mon_dissolve(struct mon_bus *mbus, struct usb_bus *ubus) ubus->mon_bus = NULL; mbus->u_bus = NULL; mb(); - // usb_bus_put(ubus); } /* @@ -297,10 +296,9 @@ static void mon_bus_init(struct dentry *mondir, struct usb_bus *ubus) INIT_LIST_HEAD(&mbus->r_list); /* - * This usb_bus_get here is superfluous, because we receive - * a notification if usb_bus is about to be removed. + * We don't need to take a reference to ubus, because we receive + * a notification if the bus is about to be removed. */ - // usb_bus_get(ubus); mbus->u_bus = ubus; ubus->mon_bus = mbus; diff --git a/include/linux/usb.h b/include/linux/usb.h index 09661759621f..c66303285a45 100644 --- a/include/linux/usb.h +++ b/include/linux/usb.h @@ -280,7 +280,6 @@ struct usb_bus { struct usb_devmap devmap; /* device address allocation map */ struct usb_device *root_hub; /* Root hub */ struct list_head bus_list; /* list of busses */ - void *hcpriv; /* Host Controller private data */ int bandwidth_allocated; /* on this bus: how much of the time * reserved for periodic (intr/iso) @@ -295,8 +294,6 @@ struct usb_bus { struct dentry *usbfs_dentry; /* usbfs dentry entry for the bus */ struct class_device *class_dev; /* class device for this bus */ - struct kref kref; /* reference counting for this bus */ - void (*release)(struct usb_bus *bus); #if defined(CONFIG_USB_MON) struct mon_bus *mon_bus; /* non-null when associated */ -- cgit v1.2.3 From b6956ffa595db97656d5901ca8fec77ef272d41a Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Wed, 30 Aug 2006 15:46:48 -0400 Subject: usbcore: store each usb_device's level in the tree This patch (as778) adds a field to struct usb_device to store the device's level in the USB tree. In itself this number isn't really important. But the overhead is very low, and in a later patch it will be used for preventing bogus warnings from the lockdep checker. Signed-off-by: Alan Stern Signed-off-by: Greg Kroah-Hartman --- drivers/usb/core/hub.c | 1 + include/linux/usb.h | 1 + 2 files changed, 2 insertions(+) (limited to 'include') diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index f5adce049b35..78e910b2046c 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -2414,6 +2414,7 @@ static void hub_port_connect_change(struct usb_hub *hub, int port1, usb_set_device_state(udev, USB_STATE_POWERED); udev->speed = USB_SPEED_UNKNOWN; udev->bus_mA = hub->mA_per_port; + udev->level = hdev->level + 1; /* set the address */ choose_address(udev); diff --git a/include/linux/usb.h b/include/linux/usb.h index c66303285a45..df5c93eb3ce9 100644 --- a/include/linux/usb.h +++ b/include/linux/usb.h @@ -348,6 +348,7 @@ struct usb_device { unsigned short bus_mA; /* Current available from the bus */ u8 portnum; /* Parent port number (origin 1) */ + u8 level; /* Number of USB hub ancestors */ int have_langid; /* whether string_langid is valid */ int string_langid; /* language ID for strings */ -- cgit v1.2.3 From 645daaab0b6adc35c1838df2a82f9d729fdb1767 Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Wed, 30 Aug 2006 15:47:02 -0400 Subject: usbcore: add autosuspend/autoresume infrastructure This patch (as739) adds the basic infrastructure for USB autosuspend and autoresume. The main features are: PM usage counters added to struct usb_device and struct usb_interface, indicating whether it's okay to autosuspend them or they are currently in use. Flag added to usb_device indicating whether the current suspend/resume operation originated from outside or as an autosuspend/autoresume. Flag added to usb_driver indicating whether the driver supports autosuspend. If not, no device bound to the driver will be autosuspended. Mutex added to usb_device for protecting PM operations. Unlike the device semaphore, the locking rule for the pm_mutex is that you must acquire the locks going _up_ the device tree. New routines handling autosuspend/autoresume requests for interfaces and devices. Suspend and resume requests are propagated up the device tree (but not outside the USB subsystem). work_struct added to usb_device, for carrying out delayed autosuspend requests. Autoresume added (and autosuspend prevented) during probe and disconnect. Signed-off-by: Alan Stern Signed-off-by: Greg Kroah-Hartman --- drivers/usb/core/driver.c | 419 ++++++++++++++++++++++++++++++++++++++++++---- drivers/usb/core/hub.c | 49 ++++-- drivers/usb/core/usb.c | 23 +++ drivers/usb/core/usb.h | 14 ++ include/linux/usb.h | 33 ++++ 5 files changed, 493 insertions(+), 45 deletions(-) (limited to 'include') diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c index a5d11461f5a9..2b2000ac05ab 100644 --- a/drivers/usb/core/driver.c +++ b/drivers/usb/core/driver.c @@ -157,12 +157,13 @@ static int usb_probe_device(struct device *dev) udev = to_usb_device(dev); - /* FIXME: resume a suspended device */ - if (udev->state == USB_STATE_SUSPENDED) - return -EHOSTUNREACH; - /* TODO: Add real matching code */ + /* The device should always appear to be in use + * unless the driver suports autosuspend. + */ + udev->pm_usage_cnt = !(udriver->supports_autosuspend); + error = udriver->probe(udev); return error; } @@ -182,6 +183,7 @@ static int usb_probe_interface(struct device *dev) { struct usb_driver *driver = to_usb_driver(dev->driver); struct usb_interface *intf; + struct usb_device *udev; const struct usb_device_id *id; int error = -ENODEV; @@ -191,10 +193,7 @@ static int usb_probe_interface(struct device *dev) return error; intf = to_usb_interface(dev); - - /* FIXME we'd much prefer to just resume it ... */ - if (interface_to_usbdev(intf)->state == USB_STATE_SUSPENDED) - return -EHOSTUNREACH; + udev = interface_to_usbdev(intf); id = usb_match_id(intf, driver->id_table); if (!id) @@ -202,18 +201,31 @@ static int usb_probe_interface(struct device *dev) if (id) { dev_dbg(dev, "%s - got id\n", __FUNCTION__); + error = usb_autoresume_device(udev, 1); + if (error) + return error; + /* Interface "power state" doesn't correspond to any hardware * state whatsoever. We use it to record when it's bound to * a driver that may start I/0: it's not frozen/quiesced. */ mark_active(intf); intf->condition = USB_INTERFACE_BINDING; + + /* The interface should always appear to be in use + * unless the driver suports autosuspend. + */ + intf->pm_usage_cnt = !(driver->supports_autosuspend); + error = driver->probe(intf, id); if (error) { mark_quiesced(intf); + intf->needs_remote_wakeup = 0; intf->condition = USB_INTERFACE_UNBOUND; } else intf->condition = USB_INTERFACE_BOUND; + + usb_autosuspend_device(udev, 1); } return error; @@ -224,9 +236,15 @@ static int usb_unbind_interface(struct device *dev) { struct usb_driver *driver = to_usb_driver(dev->driver); struct usb_interface *intf = to_usb_interface(dev); + struct usb_device *udev; + int error; intf->condition = USB_INTERFACE_UNBINDING; + /* Autoresume for set_interface call below */ + udev = interface_to_usbdev(intf); + error = usb_autoresume_device(udev, 1); + /* release all urbs for this interface */ usb_disable_interface(interface_to_usbdev(intf), intf); @@ -237,8 +255,13 @@ static int usb_unbind_interface(struct device *dev) intf->altsetting[0].desc.bInterfaceNumber, 0); usb_set_intfdata(intf, NULL); + intf->condition = USB_INTERFACE_UNBOUND; mark_quiesced(intf); + intf->needs_remote_wakeup = 0; + + if (!error) + usb_autosuspend_device(udev, 1); return 0; } @@ -267,14 +290,19 @@ int usb_driver_claim_interface(struct usb_driver *driver, struct usb_interface *iface, void* priv) { struct device *dev = &iface->dev; + struct usb_device *udev = interface_to_usbdev(iface); if (dev->driver) return -EBUSY; dev->driver = &driver->drvwrap.driver; usb_set_intfdata(iface, priv); + + mutex_lock_nested(&udev->pm_mutex, udev->level); iface->condition = USB_INTERFACE_BOUND; mark_active(iface); + iface->pm_usage_cnt = !(driver->supports_autosuspend); + mutex_unlock(&udev->pm_mutex); /* if interface was already added, bind now; else let * the future device_add() bind it, bypassing probe() @@ -304,6 +332,7 @@ void usb_driver_release_interface(struct usb_driver *driver, struct usb_interface *iface) { struct device *dev = &iface->dev; + struct usb_device *udev = interface_to_usbdev(iface); /* this should never happen, don't release something that's not ours */ if (!dev->driver || dev->driver != &driver->drvwrap.driver) @@ -321,8 +350,12 @@ void usb_driver_release_interface(struct usb_driver *driver, dev->driver = NULL; usb_set_intfdata(iface, NULL); + + mutex_lock_nested(&udev->pm_mutex, udev->level); iface->condition = USB_INTERFACE_UNBOUND; mark_quiesced(iface); + iface->needs_remote_wakeup = 0; + mutex_unlock(&udev->pm_mutex); } EXPORT_SYMBOL(usb_driver_release_interface); @@ -751,7 +784,7 @@ EXPORT_SYMBOL_GPL_FUTURE(usb_deregister); #ifdef CONFIG_PM -/* Caller has locked udev */ +/* Caller has locked udev->pm_mutex */ static int suspend_device(struct usb_device *udev, pm_message_t msg) { struct usb_device_driver *udriver; @@ -763,6 +796,7 @@ static int suspend_device(struct usb_device *udev, pm_message_t msg) /* For devices that don't have a driver, we do a standard suspend. */ if (udev->dev.driver == NULL) { + udev->do_remote_wakeup = 0; status = usb_port_suspend(udev); goto done; } @@ -771,12 +805,13 @@ static int suspend_device(struct usb_device *udev, pm_message_t msg) status = udriver->suspend(udev, msg); done: + // dev_dbg(&udev->dev, "%s: status %d\n", __FUNCTION__, status); if (status == 0) udev->dev.power.power_state.event = msg.event; return status; } -/* Caller has locked udev */ +/* Caller has locked udev->pm_mutex */ static int resume_device(struct usb_device *udev) { struct usb_device_driver *udriver; @@ -796,12 +831,13 @@ static int resume_device(struct usb_device *udev) status = udriver->resume(udev); done: + // dev_dbg(&udev->dev, "%s: status %d\n", __FUNCTION__, status); if (status == 0) udev->dev.power.power_state.event = PM_EVENT_ON; return status; } -/* Caller has locked intf's usb_device */ +/* Caller has locked intf's usb_device's pm_mutex */ static int suspend_interface(struct usb_interface *intf, pm_message_t msg) { struct usb_driver *driver; @@ -812,31 +848,33 @@ static int suspend_interface(struct usb_interface *intf, pm_message_t msg) !is_active(intf)) goto done; - if (intf->dev.driver == NULL) /* This can't happen */ + if (intf->condition == USB_INTERFACE_UNBOUND) /* This can't happen */ goto done; driver = to_usb_driver(intf->dev.driver); if (driver->suspend && driver->resume) { status = driver->suspend(intf, msg); - if (status) + if (status == 0) + mark_quiesced(intf); + else if (!interface_to_usbdev(intf)->auto_pm) dev_err(&intf->dev, "%s error %d\n", "suspend", status); - else - mark_quiesced(intf); } 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); mark_quiesced(intf); } done: + // dev_dbg(&intf->dev, "%s: status %d\n", __FUNCTION__, status); if (status == 0) intf->dev.power.power_state.event = msg.event; return status; } -/* Caller has locked intf's usb_device */ +/* Caller has locked intf's usb_device's pm_mutex */ static int resume_interface(struct usb_interface *intf) { struct usb_driver *driver; @@ -846,8 +884,12 @@ static int resume_interface(struct usb_interface *intf) is_active(intf)) goto done; + /* Don't let autoresume interfere with unbinding */ + if (intf->condition == USB_INTERFACE_UNBINDING) + goto done; + /* Can't resume it if it doesn't have a driver. */ - if (intf->dev.driver == NULL) { + if (intf->condition == USB_INTERFACE_UNBOUND) { status = -ENOTCONN; goto done; } @@ -867,18 +909,88 @@ static int resume_interface(struct usb_interface *intf) } done: + // dev_dbg(&intf->dev, "%s: status %d\n", __FUNCTION__, status); if (status == 0) intf->dev.power.power_state.event = PM_EVENT_ON; return status; } -/* Caller has locked udev */ +/** + * usb_suspend_both - suspend a USB device and its interfaces + * @udev: the usb_device to suspend + * @msg: Power Management message describing this state transition + * + * This is the central routine for suspending USB devices. It calls the + * suspend methods for all the interface drivers in @udev and then calls + * the suspend method for @udev itself. If an error occurs at any stage, + * all the interfaces which were suspended are resumed so that they remain + * in the same state as the device. + * + * If an autosuspend is in progress (@udev->auto_pm is set), the routine + * checks first to make sure that neither the device itself or any of its + * active interfaces is in use (pm_usage_cnt is greater than 0). If they + * are, the autosuspend fails. + * + * If the suspend succeeds, the routine recursively queues an autosuspend + * request for @udev's parent device, thereby propagating the change up + * the device tree. If all of the parent's children are now suspended, + * the parent will autosuspend in turn. + * + * The suspend method calls are subject to mutual exclusion under control + * of @udev's pm_mutex. Many of these calls are also under the protection + * of @udev's device lock (including all requests originating outside the + * USB subsystem), but autosuspend requests generated by a child device or + * interface driver may not be. Usbcore will insure that the method calls + * do not arrive during bind, unbind, or reset operations. However, drivers + * must be prepared to handle suspend calls arriving at unpredictable times. + * The only way to block such calls is to do an autoresume (preventing + * autosuspends) while holding @udev's device lock (preventing outside + * suspends). + * + * The caller must hold @udev->pm_mutex. + * + * This routine can run only in process context. + */ int usb_suspend_both(struct usb_device *udev, pm_message_t msg) { int status = 0; int i = 0; struct usb_interface *intf; + struct usb_device *parent = udev->parent; + + cancel_delayed_work(&udev->autosuspend); + if (udev->state == USB_STATE_NOTATTACHED) + return 0; + if (udev->state == USB_STATE_SUSPENDED) + return 0; + udev->do_remote_wakeup = device_may_wakeup(&udev->dev); + + /* For autosuspend, fail fast if anything is in use. + * Also fail if any interfaces require remote wakeup but it + * isn't available. */ + if (udev->auto_pm) { + if (udev->pm_usage_cnt > 0) + return -EBUSY; + if (udev->actconfig) { + for (; i < udev->actconfig->desc.bNumInterfaces; i++) { + intf = udev->actconfig->interface[i]; + if (!is_active(intf)) + continue; + if (intf->pm_usage_cnt > 0) + return -EBUSY; + if (intf->needs_remote_wakeup && + !udev->do_remote_wakeup) { + dev_dbg(&udev->dev, + "remote wakeup needed for autosuspend\n"); + return -EOPNOTSUPP; + } + } + i = 0; + } + } + + /* Suspend all the interfaces and then udev itself */ if (udev->actconfig) { for (; i < udev->actconfig->desc.bNumInterfaces; i++) { intf = udev->actconfig->interface[i]; @@ -896,40 +1008,282 @@ int usb_suspend_both(struct usb_device *udev, pm_message_t msg) intf = udev->actconfig->interface[i]; resume_interface(intf); } - } + + /* If the suspend succeeded, propagate it up the tree */ + } else if (parent) + usb_autosuspend_device(parent, 0); + + // dev_dbg(&udev->dev, "%s: status %d\n", __FUNCTION__, status); return status; } -/* Caller has locked udev */ +/** + * usb_resume_both - resume a USB device and its interfaces + * @udev: the usb_device to resume + * + * This is the central routine for resuming USB devices. It calls the + * the resume method for @udev and then calls the resume methods for all + * the interface drivers in @udev. + * + * Before starting the resume, the routine calls itself recursively for + * the parent device of @udev, thereby propagating the change up the device + * tree and assuring that @udev will be able to resume. If the parent is + * unable to resume successfully, the routine fails. + * + * The resume method calls are subject to mutual exclusion under control + * of @udev's pm_mutex. Many of these calls are also under the protection + * of @udev's device lock (including all requests originating outside the + * USB subsystem), but autoresume requests generated by a child device or + * interface driver may not be. Usbcore will insure that the method calls + * do not arrive during bind, unbind, or reset operations. However, drivers + * must be prepared to handle resume calls arriving at unpredictable times. + * The only way to block such calls is to do an autoresume (preventing + * other autoresumes) while holding @udev's device lock (preventing outside + * resumes). + * + * The caller must hold @udev->pm_mutex. + * + * This routine can run only in process context. + */ int usb_resume_both(struct usb_device *udev) { - int status; + int status = 0; int i; struct usb_interface *intf; + struct usb_device *parent = udev->parent; + + cancel_delayed_work(&udev->autosuspend); + if (udev->state == USB_STATE_NOTATTACHED) + return -ENODEV; - /* Can't resume if the parent is suspended */ - if (udev->parent && udev->parent->state == USB_STATE_SUSPENDED) { - dev_warn(&udev->dev, "can't resume; parent is suspended\n"); - return -EHOSTUNREACH; + /* Propagate the resume up the tree, if necessary */ + if (udev->state == USB_STATE_SUSPENDED) { + if (parent) { + mutex_lock_nested(&parent->pm_mutex, parent->level); + parent->auto_pm = 1; + status = usb_resume_both(parent); + } else { + + /* We can't progagate beyond the USB subsystem, + * so if a root hub's controller is suspended + * then we're stuck. */ + if (udev->dev.parent->power.power_state.event != + PM_EVENT_ON) + status = -EHOSTUNREACH; + } + if (status == 0 && udev->state == USB_STATE_SUSPENDED) + status = resume_device(udev); + if (parent) + mutex_unlock(&parent->pm_mutex); } - status = resume_device(udev); + /* Now the parent won't suspend until we are finished */ + if (status == 0 && udev->actconfig) { for (i = 0; i < udev->actconfig->desc.bNumInterfaces; i++) { intf = udev->actconfig->interface[i]; resume_interface(intf); } } + + // dev_dbg(&udev->dev, "%s: status %d\n", __FUNCTION__, status); + return status; +} + +#ifdef CONFIG_USB_SUSPEND + +/** + * usb_autosuspend_device - delayed autosuspend of a USB device and its interfaces + * @udev - the usb_device to autosuspend + * @dec_usage_cnt - flag to decrement @udev's PM-usage counter + * + * This routine should be called when a core subsystem is finished using + * @udev and wants to allow it to autosuspend. Examples would be when + * @udev's device file in usbfs is closed or after a configuration change. + * + * @dec_usage_cnt should be 1 if the subsystem previously incremented + * @udev's usage counter (such as by passing 1 to usb_autoresume_device); + * otherwise it should be 0. + * + * If the usage counter for @udev or any of its active interfaces is greater + * than 0, the autosuspend request will not be queued. (If an interface + * driver does not support autosuspend then its usage counter is permanently + * positive.) Likewise, if an interface driver requires remote-wakeup + * capability during autosuspend but remote wakeup is disabled, the + * autosuspend will fail. + * + * Often the caller will hold @udev's device lock, but this is not + * necessary. + * + * This routine can run only in process context. + */ +void usb_autosuspend_device(struct usb_device *udev, int dec_usage_cnt) +{ + mutex_lock_nested(&udev->pm_mutex, udev->level); + udev->pm_usage_cnt -= dec_usage_cnt; + if (udev->pm_usage_cnt <= 0) + schedule_delayed_work(&udev->autosuspend, + USB_AUTOSUSPEND_DELAY); + mutex_unlock(&udev->pm_mutex); + // dev_dbg(&udev->dev, "%s: cnt %d\n", + // __FUNCTION__, udev->pm_usage_cnt); +} + +/** + * usb_autoresume_device - immediately autoresume a USB device and its interfaces + * @udev - the usb_device to autoresume + * @inc_usage_cnt - flag to increment @udev's PM-usage counter + * + * This routine should be called when a core subsystem wants to use @udev + * and needs to guarantee that it is not suspended. In addition, the + * caller can prevent @udev from being autosuspended subsequently. (Note + * that this will not prevent suspend events originating in the PM core.) + * Examples would be when @udev's device file in usbfs is opened (autosuspend + * should be prevented until the file is closed) or when a remote-wakeup + * request is received (later autosuspends should not be prevented). + * + * @inc_usage_cnt should be 1 to increment @udev's usage counter and prevent + * autosuspends. This prevention will persist until the usage counter is + * decremented again (such as by passing 1 to usb_autosuspend_device). + * Otherwise @inc_usage_cnt should be 0 to leave the usage counter unchanged. + * Regardless, if the autoresume fails then the usage counter is not + * incremented. + * + * Often the caller will hold @udev's device lock, but this is not + * necessary (and attempting it might cause deadlock). + * + * This routine can run only in process context. + */ +int usb_autoresume_device(struct usb_device *udev, int inc_usage_cnt) +{ + int status; + + mutex_lock_nested(&udev->pm_mutex, udev->level); + udev->pm_usage_cnt += inc_usage_cnt; + udev->auto_pm = 1; + status = usb_resume_both(udev); + if (status != 0) + udev->pm_usage_cnt -= inc_usage_cnt; + mutex_unlock(&udev->pm_mutex); + // dev_dbg(&udev->dev, "%s: status %d cnt %d\n", + // __FUNCTION__, status, udev->pm_usage_cnt); + return status; +} + +/** + * usb_autopm_put_interface - decrement a USB interface's PM-usage counter + * @intf - the usb_interface whose counter should be decremented + * + * This routine should be called by an interface driver when it is + * finished using @intf and wants to allow it to autosuspend. A typical + * example would be a character-device driver when its device file is + * closed. + * + * The routine decrements @intf's usage counter. When the counter reaches + * 0, a delayed autosuspend request for @intf's device is queued. When + * the delay expires, if @intf->pm_usage_cnt is still <= 0 along with all + * the other usage counters for the sibling interfaces and @intf's + * usb_device, the device and all its interfaces will be autosuspended. + * + * Note that @intf->pm_usage_cnt is owned by the interface driver. The + * core will not change its value other than the increment and decrement + * in usb_autopm_get_interface and usb_autopm_put_interface. The driver + * may use this simple counter-oriented discipline or may set the value + * any way it likes. + * + * If the driver has set @intf->needs_remote_wakeup then autosuspend will + * take place only if the device's remote-wakeup facility is enabled. + * + * Suspend method calls queued by this routine can arrive at any time + * while @intf is resumed and its usage counter is equal to 0. They are + * not protected by the usb_device's lock but only by its pm_mutex. + * Drivers must provide their own synchronization. + * + * This routine can run only in process context. + */ +void usb_autopm_put_interface(struct usb_interface *intf) +{ + struct usb_device *udev = interface_to_usbdev(intf); + + mutex_lock_nested(&udev->pm_mutex, udev->level); + if (intf->condition != USB_INTERFACE_UNBOUND) { + if (--intf->pm_usage_cnt <= 0) + schedule_delayed_work(&udev->autosuspend, + USB_AUTOSUSPEND_DELAY); + } + mutex_unlock(&udev->pm_mutex); + // dev_dbg(&intf->dev, "%s: cnt %d\n", + // __FUNCTION__, intf->pm_usage_cnt); +} +EXPORT_SYMBOL_GPL(usb_autopm_put_interface); + +/** + * usb_autopm_get_interface - increment a USB interface's PM-usage counter + * @intf - the usb_interface whose counter should be incremented + * + * This routine should be called by an interface driver when it wants to + * use @intf and needs to guarantee that it is not suspended. In addition, + * the routine prevents @intf from being autosuspended subsequently. (Note + * that this will not prevent suspend events originating in the PM core.) + * This prevention will persist until usb_autopm_put_interface() is called + * or @intf is unbound. A typical example would be a character-device + * driver when its device file is opened. + * + * The routine increments @intf's usage counter. So long as the counter + * is greater than 0, autosuspend will not be allowed for @intf or its + * usb_device. When the driver is finished using @intf it should call + * usb_autopm_put_interface() to decrement the usage counter and queue + * a delayed autosuspend request (if the counter is <= 0). + * + * Note that @intf->pm_usage_cnt is owned by the interface driver. The + * core will not change its value other than the increment and decrement + * in usb_autopm_get_interface and usb_autopm_put_interface. The driver + * may use this simple counter-oriented discipline or may set the value + * any way it likes. + * + * Resume method calls generated by this routine can arrive at any time + * while @intf is suspended. They are not protected by the usb_device's + * lock but only by its pm_mutex. Drivers must provide their own + * synchronization. + * + * This routine can run only in process context. + */ +int usb_autopm_get_interface(struct usb_interface *intf) +{ + struct usb_device *udev = interface_to_usbdev(intf); + int status; + + mutex_lock_nested(&udev->pm_mutex, udev->level); + if (intf->condition == USB_INTERFACE_UNBOUND) + status = -ENODEV; + else { + ++intf->pm_usage_cnt; + udev->auto_pm = 1; + status = usb_resume_both(udev); + if (status != 0) + --intf->pm_usage_cnt; + } + mutex_unlock(&udev->pm_mutex); + // dev_dbg(&intf->dev, "%s: status %d cnt %d\n", + // __FUNCTION__, status, intf->pm_usage_cnt); return status; } +EXPORT_SYMBOL_GPL(usb_autopm_get_interface); + +#endif /* CONFIG_USB_SUSPEND */ static int usb_suspend(struct device *dev, pm_message_t message) { int status; - if (is_usb_device(dev)) - status = usb_suspend_both(to_usb_device(dev), message); - else + if (is_usb_device(dev)) { + struct usb_device *udev = to_usb_device(dev); + + mutex_lock_nested(&udev->pm_mutex, udev->level); + udev->auto_pm = 0; + status = usb_suspend_both(udev, message); + mutex_unlock(&udev->pm_mutex); + } else status = 0; return status; } @@ -939,7 +1293,12 @@ static int usb_resume(struct device *dev) int status; if (is_usb_device(dev)) { - status = usb_resume_both(to_usb_device(dev)); + struct usb_device *udev = to_usb_device(dev); + + mutex_lock_nested(&udev->pm_mutex, udev->level); + udev->auto_pm = 0; + status = usb_resume_both(udev); + mutex_unlock(&udev->pm_mutex); /* Rebind drivers that had no suspend method? */ } else diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index 78e910b2046c..dee812bc6c43 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -1017,19 +1017,22 @@ void usb_set_device_state(struct usb_device *udev, if (udev->state == USB_STATE_NOTATTACHED) ; /* do nothing */ else if (new_state != USB_STATE_NOTATTACHED) { - udev->state = new_state; /* root hub wakeup capabilities are managed out-of-band * and may involve silicon errata ... ignore them here. */ if (udev->parent) { - if (new_state == USB_STATE_CONFIGURED) + if (udev->state == USB_STATE_SUSPENDED + || new_state == USB_STATE_SUSPENDED) + ; /* No change to wakeup settings */ + else if (new_state == USB_STATE_CONFIGURED) device_init_wakeup(&udev->dev, (udev->actconfig->desc.bmAttributes & USB_CONFIG_ATT_WAKEUP)); - else if (new_state != USB_STATE_SUSPENDED) + else device_init_wakeup(&udev->dev, 0); } + udev->state = new_state; } else recursively_mark_NOTATTACHED(udev); spin_unlock_irqrestore(&device_state_lock, flags); @@ -1507,7 +1510,7 @@ static int hub_port_suspend(struct usb_hub *hub, int port1, * NOTE: OTG devices may issue remote wakeup (or SRP) even when * we don't explicitly enable it here. */ - if (device_may_wakeup(&udev->dev)) { + if (udev->do_remote_wakeup) { status = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), USB_REQ_SET_FEATURE, USB_RECIP_DEVICE, USB_DEVICE_REMOTE_WAKEUP, 0, @@ -1533,7 +1536,8 @@ static int hub_port_suspend(struct usb_hub *hub, int port1, USB_CTRL_SET_TIMEOUT); } else { /* device has up to 10 msec to fully suspend */ - dev_dbg(&udev->dev, "usb suspend\n"); + dev_dbg(&udev->dev, "usb %ssuspend\n", + udev->auto_pm ? "auto-" : ""); usb_set_device_state(udev, USB_STATE_SUSPENDED); msleep(10); } @@ -1573,7 +1577,8 @@ static int __usb_port_suspend (struct usb_device *udev, int port1) status = hub_port_suspend(hdev_to_hub(udev->parent), port1, udev); else { - dev_dbg(&udev->dev, "usb suspend\n"); + dev_dbg(&udev->dev, "usb %ssuspend\n", + udev->auto_pm ? "auto-" : ""); usb_set_device_state(udev, USB_STATE_SUSPENDED); } return status; @@ -1687,7 +1692,8 @@ hub_port_resume(struct usb_hub *hub, int port1, struct usb_device *udev) /* drive resume for at least 20 msec */ if (udev) - dev_dbg(&udev->dev, "RESUME\n"); + dev_dbg(&udev->dev, "usb %sresume\n", + udev->auto_pm ? "auto-" : ""); msleep(25); #define LIVE_FLAGS ( USB_PORT_STAT_POWER \ @@ -1754,8 +1760,11 @@ int usb_port_resume(struct usb_device *udev) // NOTE this fails if parent is also suspended... status = hub_port_resume(hdev_to_hub(udev->parent), udev->portnum, udev); - } else + } else { + dev_dbg(&udev->dev, "usb %sresume\n", + udev->auto_pm ? "auto-" : ""); status = finish_port_resume(udev); + } if (status < 0) dev_dbg(&udev->dev, "can't resume, status %d\n", status); return status; @@ -1765,19 +1774,23 @@ static int remote_wakeup(struct usb_device *udev) { int status = 0; - /* don't repeat RESUME sequence if this device - * was already woken up by some other task - */ + /* All this just to avoid sending a port-resume message + * to the parent hub! */ + usb_lock_device(udev); + mutex_lock_nested(&udev->pm_mutex, udev->level); if (udev->state == USB_STATE_SUSPENDED) { - dev_dbg(&udev->dev, "RESUME (wakeup)\n"); + dev_dbg(&udev->dev, "usb %sresume\n", "wakeup-"); /* TRSMRCY = 10 msec */ msleep(10); status = finish_port_resume(udev); + if (status == 0) + udev->dev.power.power_state.event = PM_EVENT_ON; } + mutex_unlock(&udev->pm_mutex); if (status == 0) - usb_resume_both(udev); + usb_autoresume_device(udev, 0); usb_unlock_device(udev); return status; } @@ -1834,7 +1847,9 @@ static int hub_suspend(struct usb_interface *intf, pm_message_t msg) == PM_EVENT_ON #endif ) { - dev_dbg(&intf->dev, "port %d nyet suspended\n", port1); + if (!hdev->auto_pm) + dev_dbg(&intf->dev, "port %d nyet suspended\n", + port1); return -EBUSY; } } @@ -2587,7 +2602,7 @@ static void hub_events(void) * stub "device" node was never suspended. */ if (i) - usb_resume_both(hdev); + usb_autoresume_device(hdev, 0); /* If this is an inactive or suspended hub, do nothing */ if (hub->quiescing) @@ -2993,6 +3008,9 @@ int usb_reset_composite_device(struct usb_device *udev, return -EINVAL; } + /* Prevent autosuspend during the reset */ + usb_autoresume_device(udev, 1); + if (iface && iface->condition != USB_INTERFACE_BINDING) iface = NULL; @@ -3034,6 +3052,7 @@ int usb_reset_composite_device(struct usb_device *udev, } } + usb_autosuspend_device(udev, 1); return ret; } EXPORT_SYMBOL(usb_reset_composite_device); diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c index b0c0a993338f..6b029cdb8671 100644 --- a/drivers/usb/core/usb.c +++ b/drivers/usb/core/usb.c @@ -168,6 +168,10 @@ static void usb_release_dev(struct device *dev) udev = to_usb_device(dev); +#ifdef CONFIG_PM + cancel_delayed_work(&udev->autosuspend); + flush_scheduled_work(); +#endif usb_destroy_configuration(udev); usb_put_hcd(bus_to_hcd(udev->bus)); kfree(udev->product); @@ -176,6 +180,21 @@ static void usb_release_dev(struct device *dev) kfree(udev); } +#ifdef CONFIG_PM + +/* usb_autosuspend_work - callback routine to autosuspend a USB device */ +static void usb_autosuspend_work(void *_udev) +{ + struct usb_device *udev = _udev; + + mutex_lock_nested(&udev->pm_mutex, udev->level); + udev->auto_pm = 1; + usb_suspend_both(udev, PMSG_SUSPEND); + mutex_unlock(&udev->pm_mutex); +} + +#endif + /** * usb_alloc_dev - usb device constructor (usbcore-internal) * @parent: hub to which device is connected; null to allocate a root hub @@ -251,6 +270,10 @@ usb_alloc_dev(struct usb_device *parent, struct usb_bus *bus, unsigned port1) dev->parent = parent; INIT_LIST_HEAD(&dev->filelist); +#ifdef CONFIG_PM + mutex_init(&dev->pm_mutex); + INIT_WORK(&dev->autosuspend, usb_autosuspend_work, dev); +#endif return dev; } diff --git a/drivers/usb/core/usb.h b/drivers/usb/core/usb.h index 5162cb370215..10688ad73c6d 100644 --- a/drivers/usb/core/usb.h +++ b/drivers/usb/core/usb.h @@ -49,6 +49,20 @@ static inline int usb_resume_both(struct usb_device *udev) #endif +#ifdef CONFIG_USB_SUSPEND + +#define USB_AUTOSUSPEND_DELAY (HZ*2) + +extern void usb_autosuspend_device(struct usb_device *udev, int dec_busy_cnt); +extern int usb_autoresume_device(struct usb_device *udev, int inc_busy_cnt); + +#else + +#define usb_autosuspend_device(udev, dec_busy_cnt) do {} while (0) +#define usb_autoresume_device(udev, inc_busy_cnt) 0 + +#endif + extern struct bus_type usb_bus_type; extern struct usb_device_driver usb_generic_driver; diff --git a/include/linux/usb.h b/include/linux/usb.h index df5c93eb3ce9..0da15b0b02be 100644 --- a/include/linux/usb.h +++ b/include/linux/usb.h @@ -19,6 +19,7 @@ #include /* for struct file_operations */ #include /* for struct completion */ #include /* for current && schedule_timeout */ +#include /* for struct mutex */ struct usb_device; struct usb_driver; @@ -103,8 +104,12 @@ enum usb_interface_condition { * @condition: binding state of the interface: not bound, binding * (in probe()), bound to a driver, or unbinding (in disconnect()) * @is_active: flag set when the interface is bound and not suspended. + * @needs_remote_wakeup: flag set when the driver requires remote-wakeup + * capability during autosuspend. * @dev: driver model's view of this device * @class_dev: driver model's class view of this device. + * @pm_usage_cnt: PM usage counter for this interface; autosuspend is not + * allowed unless the counter is 0. * * USB device drivers attach to interfaces on a physical device. Each * interface encapsulates a single high level function, such as feeding @@ -144,9 +149,11 @@ struct usb_interface { * bound to */ enum usb_interface_condition condition; /* state of binding */ unsigned is_active:1; /* the interface is not suspended */ + unsigned needs_remote_wakeup:1; /* driver requires remote wakeup */ struct device dev; /* interface specific device info */ struct class_device *class_dev; + int pm_usage_cnt; /* usage counter for autosuspend */ }; #define to_usb_interface(d) container_of(d, struct usb_interface, dev) #define interface_to_usbdev(intf) \ @@ -372,6 +379,15 @@ struct usb_device { int maxchild; /* Number of ports if hub */ struct usb_device *children[USB_MAXCHILDREN]; + +#ifdef CONFIG_PM + struct work_struct autosuspend; /* for delayed autosuspends */ + struct mutex pm_mutex; /* protects PM operations */ + int pm_usage_cnt; /* usage counter for autosuspend */ + + unsigned auto_pm:1; /* autosuspend/resume in progress */ + unsigned do_remote_wakeup:1; /* remote wakeup should be enabled */ +#endif }; #define to_usb_device(d) container_of(d, struct usb_device, dev) @@ -392,6 +408,17 @@ extern int usb_reset_composite_device(struct usb_device *dev, extern struct usb_device *usb_find_device(u16 vendor_id, u16 product_id); +/* USB autosuspend and autoresume */ +#ifdef CONFIG_USB_SUSPEND +extern int usb_autopm_get_interface(struct usb_interface *intf); +extern void usb_autopm_put_interface(struct usb_interface *intf); + +#else +#define usb_autopm_get_interface(intf) 0 +#define usb_autopm_put_interface(intf) do {} while (0) +#endif + + /*-------------------------------------------------------------------------*/ /* for drivers using iso endpoints */ @@ -593,6 +620,8 @@ struct usbdrv_wrap { * @drvwrap: Driver-model core structure wrapper. * @no_dynamic_id: if set to 1, the USB core will not allow dynamic ids to be * 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. * * USB interface drivers must provide a name, probe() and disconnect() * methods, and an id_table. Other driver fields are optional. @@ -631,6 +660,7 @@ struct usb_driver { struct usb_dynids dynids; struct usbdrv_wrap drvwrap; unsigned int no_dynamic_id:1; + unsigned int supports_autosuspend:1; }; #define to_usb_driver(d) container_of(d, struct usb_driver, drvwrap.driver) @@ -648,6 +678,8 @@ struct usb_driver { * @suspend: Called when the device is going to be suspended by the system. * @resume: Called when the device is being resumed by the system. * @drvwrap: Driver-model core structure wrapper. + * @supports_autosuspend: if set to 0, the USB core will not allow autosuspend + * for devices bound to this driver. * * USB drivers must provide all the fields listed above except drvwrap. */ @@ -660,6 +692,7 @@ struct usb_device_driver { int (*suspend) (struct usb_device *udev, pm_message_t message); int (*resume) (struct usb_device *udev); struct usbdrv_wrap drvwrap; + unsigned int supports_autosuspend:1; }; #define to_usb_device_driver(d) container_of(d, struct usb_device_driver, \ drvwrap.driver) -- cgit v1.2.3 From 00463c1633b6d6a2178d2dc794c0a70ac2f9ce6b Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Wed, 27 Sep 2006 21:38:56 +0200 Subject: [PATCH] i386: Use early clobbers for semaphores now The new code does clobber the result early, so make sure to tell gcc to not put it into the same register as a input argument Signed-off-by: Andi Kleen Cc: Andrew Morton Acked-by: Kyle McMartin Signed-off-by: Linus Torvalds --- include/asm-i386/semaphore.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/asm-i386/semaphore.h b/include/asm-i386/semaphore.h index e63b6a68f04c..4e34a468c383 100644 --- a/include/asm-i386/semaphore.h +++ b/include/asm-i386/semaphore.h @@ -126,7 +126,7 @@ static inline int down_interruptible(struct semaphore * sem) "lea %1,%%eax\n\t" "call __down_failed_interruptible\n" "2:" - :"=a" (result), "+m" (sem->count) + :"=&a" (result), "+m" (sem->count) : :"memory"); return result; @@ -148,7 +148,7 @@ static inline int down_trylock(struct semaphore * sem) "lea %1,%%eax\n\t" "call __down_failed_trylock\n\t" "2:\n" - :"=a" (result), "+m" (sem->count) + :"=&a" (result), "+m" (sem->count) : :"memory"); return result; -- cgit v1.2.3