diff options
Diffstat (limited to 'include')
63 files changed, 1391 insertions, 1781 deletions
diff --git a/include/asm-alpha/spinlock.h b/include/asm-alpha/spinlock.h index 80780dba9986..8197c69eff44 100644 --- a/include/asm-alpha/spinlock.h +++ b/include/asm-alpha/spinlock.h @@ -6,7 +6,6 @@ #include <linux/kernel.h> #include <asm/current.h> - /* * Simple spin lock operations. There are two variants, one clears IRQ's * on the local processor, one does not. @@ -14,43 +13,18 @@ * We make no fairness assumptions. They have a cost. */ -typedef struct { - volatile unsigned int lock; -#ifdef CONFIG_DEBUG_SPINLOCK - int on_cpu; - int line_no; - void *previous; - struct task_struct * task; - const char *base_file; -#endif -} spinlock_t; - -#ifdef CONFIG_DEBUG_SPINLOCK -#define SPIN_LOCK_UNLOCKED (spinlock_t){ 0, -1, 0, NULL, NULL, NULL } -#else -#define SPIN_LOCK_UNLOCKED (spinlock_t){ 0 } -#endif - -#define spin_lock_init(x) do { *(x) = SPIN_LOCK_UNLOCKED; } while(0) -#define spin_is_locked(x) ((x)->lock != 0) -#define spin_unlock_wait(x) do { barrier(); } while ((x)->lock) - -#ifdef CONFIG_DEBUG_SPINLOCK -extern void _raw_spin_unlock(spinlock_t * lock); -extern void debug_spin_lock(spinlock_t * lock, const char *, int); -extern int debug_spin_trylock(spinlock_t * lock, const char *, int); -#define _raw_spin_lock(LOCK) \ - debug_spin_lock(LOCK, __BASE_FILE__, __LINE__) -#define _raw_spin_trylock(LOCK) \ - debug_spin_trylock(LOCK, __BASE_FILE__, __LINE__) -#else -static inline void _raw_spin_unlock(spinlock_t * lock) +#define __raw_spin_lock_flags(lock, flags) __raw_spin_lock(lock) +#define __raw_spin_is_locked(x) ((x)->lock != 0) +#define __raw_spin_unlock_wait(x) \ + do { cpu_relax(); } while ((x)->lock) + +static inline void __raw_spin_unlock(raw_spinlock_t * lock) { mb(); lock->lock = 0; } -static inline void _raw_spin_lock(spinlock_t * lock) +static inline void __raw_spin_lock(raw_spinlock_t * lock) { long tmp; @@ -70,80 +44,64 @@ static inline void _raw_spin_lock(spinlock_t * lock) : "m"(lock->lock) : "memory"); } -static inline int _raw_spin_trylock(spinlock_t *lock) +static inline int __raw_spin_trylock(raw_spinlock_t *lock) { return !test_and_set_bit(0, &lock->lock); } -#endif /* CONFIG_DEBUG_SPINLOCK */ - -#define _raw_spin_lock_flags(lock, flags) _raw_spin_lock(lock) /***********************************************************/ -typedef struct { - volatile unsigned int lock; -} rwlock_t; - -#define RW_LOCK_UNLOCKED (rwlock_t){ 0 } - -#define rwlock_init(x) do { *(x) = RW_LOCK_UNLOCKED; } while(0) - -static inline int read_can_lock(rwlock_t *lock) +static inline int __raw_read_can_lock(raw_rwlock_t *lock) { return (lock->lock & 1) == 0; } -static inline int write_can_lock(rwlock_t *lock) +static inline int __raw_write_can_lock(raw_rwlock_t *lock) { return lock->lock == 0; } -#ifdef CONFIG_DEBUG_RWLOCK -extern void _raw_write_lock(rwlock_t * lock); -extern void _raw_read_lock(rwlock_t * lock); -#else -static inline void _raw_write_lock(rwlock_t * lock) +static inline void __raw_read_lock(raw_rwlock_t *lock) { long regx; __asm__ __volatile__( "1: ldl_l %1,%0\n" - " bne %1,6f\n" - " lda %1,1\n" + " blbs %1,6f\n" + " subl %1,2,%1\n" " stl_c %1,%0\n" " beq %1,6f\n" " mb\n" ".subsection 2\n" "6: ldl %1,%0\n" - " bne %1,6b\n" + " blbs %1,6b\n" " br 1b\n" ".previous" : "=m" (*lock), "=&r" (regx) : "m" (*lock) : "memory"); } -static inline void _raw_read_lock(rwlock_t * lock) +static inline void __raw_write_lock(raw_rwlock_t *lock) { long regx; __asm__ __volatile__( "1: ldl_l %1,%0\n" - " blbs %1,6f\n" - " subl %1,2,%1\n" + " bne %1,6f\n" + " lda %1,1\n" " stl_c %1,%0\n" " beq %1,6f\n" " mb\n" ".subsection 2\n" "6: ldl %1,%0\n" - " blbs %1,6b\n" + " bne %1,6b\n" " br 1b\n" ".previous" : "=m" (*lock), "=&r" (regx) : "m" (*lock) : "memory"); } -#endif /* CONFIG_DEBUG_RWLOCK */ -static inline int _raw_read_trylock(rwlock_t * lock) +static inline int __raw_read_trylock(raw_rwlock_t * lock) { long regx; int success; @@ -165,7 +123,7 @@ static inline int _raw_read_trylock(rwlock_t * lock) return success; } -static inline int _raw_write_trylock(rwlock_t * lock) +static inline int __raw_write_trylock(raw_rwlock_t * lock) { long regx; int success; @@ -187,13 +145,7 @@ static inline int _raw_write_trylock(rwlock_t * lock) return success; } -static inline void _raw_write_unlock(rwlock_t * lock) -{ - mb(); - lock->lock = 0; -} - -static inline void _raw_read_unlock(rwlock_t * lock) +static inline void __raw_read_unlock(raw_rwlock_t * lock) { long regx; __asm__ __volatile__( @@ -209,4 +161,10 @@ static inline void _raw_read_unlock(rwlock_t * lock) : "m" (*lock) : "memory"); } +static inline void __raw_write_unlock(raw_rwlock_t * lock) +{ + mb(); + lock->lock = 0; +} + #endif /* _ALPHA_SPINLOCK_H */ diff --git a/include/asm-alpha/spinlock_types.h b/include/asm-alpha/spinlock_types.h new file mode 100644 index 000000000000..8141eb5ebf0d --- /dev/null +++ b/include/asm-alpha/spinlock_types.h @@ -0,0 +1,20 @@ +#ifndef _ALPHA_SPINLOCK_TYPES_H +#define _ALPHA_SPINLOCK_TYPES_H + +#ifndef __LINUX_SPINLOCK_TYPES_H +# error "please don't include this file directly" +#endif + +typedef struct { + volatile unsigned int lock; +} raw_spinlock_t; + +#define __RAW_SPIN_LOCK_UNLOCKED { 0 } + +typedef struct { + volatile unsigned int lock; +} raw_rwlock_t; + +#define __RAW_RW_LOCK_UNLOCKED { 0 } + +#endif diff --git a/include/asm-arm/spinlock.h b/include/asm-arm/spinlock.h index 1f906d09b688..cb4906b45555 100644 --- a/include/asm-arm/spinlock.h +++ b/include/asm-arm/spinlock.h @@ -16,21 +16,14 @@ * Unlocked value: 0 * Locked value: 1 */ -typedef struct { - volatile unsigned int lock; -#ifdef CONFIG_PREEMPT - unsigned int break_lock; -#endif -} spinlock_t; -#define SPIN_LOCK_UNLOCKED (spinlock_t) { 0 } +#define __raw_spin_is_locked(x) ((x)->lock != 0) +#define __raw_spin_unlock_wait(lock) \ + do { while (__raw_spin_is_locked(lock)) cpu_relax(); } while (0) -#define spin_lock_init(x) do { *(x) = SPIN_LOCK_UNLOCKED; } while (0) -#define spin_is_locked(x) ((x)->lock != 0) -#define spin_unlock_wait(x) do { barrier(); } while (spin_is_locked(x)) -#define _raw_spin_lock_flags(lock, flags) _raw_spin_lock(lock) +#define __raw_spin_lock_flags(lock, flags) __raw_spin_lock(lock) -static inline void _raw_spin_lock(spinlock_t *lock) +static inline void __raw_spin_lock(raw_spinlock_t *lock) { unsigned long tmp; @@ -47,7 +40,7 @@ static inline void _raw_spin_lock(spinlock_t *lock) smp_mb(); } -static inline int _raw_spin_trylock(spinlock_t *lock) +static inline int __raw_spin_trylock(raw_spinlock_t *lock) { unsigned long tmp; @@ -67,7 +60,7 @@ static inline int _raw_spin_trylock(spinlock_t *lock) } } -static inline void _raw_spin_unlock(spinlock_t *lock) +static inline void __raw_spin_unlock(raw_spinlock_t *lock) { smp_mb(); @@ -80,23 +73,14 @@ static inline void _raw_spin_unlock(spinlock_t *lock) /* * RWLOCKS - */ -typedef struct { - volatile unsigned int lock; -#ifdef CONFIG_PREEMPT - unsigned int break_lock; -#endif -} rwlock_t; - -#define RW_LOCK_UNLOCKED (rwlock_t) { 0 } -#define rwlock_init(x) do { *(x) = RW_LOCK_UNLOCKED; } while (0) -#define rwlock_is_locked(x) (*((volatile unsigned int *)(x)) != 0) - -/* + * + * * Write locks are easy - we just set bit 31. When unlocking, we can * just write zero since the lock is exclusively held. */ -static inline void _raw_write_lock(rwlock_t *rw) +#define rwlock_is_locked(x) (*((volatile unsigned int *)(x)) != 0) + +static inline void __raw_write_lock(rwlock_t *rw) { unsigned long tmp; @@ -113,7 +97,7 @@ static inline void _raw_write_lock(rwlock_t *rw) smp_mb(); } -static inline int _raw_write_trylock(rwlock_t *rw) +static inline int __raw_write_trylock(rwlock_t *rw) { unsigned long tmp; @@ -133,7 +117,7 @@ static inline int _raw_write_trylock(rwlock_t *rw) } } -static inline void _raw_write_unlock(rwlock_t *rw) +static inline void __raw_write_unlock(raw_rwlock_t *rw) { smp_mb(); @@ -156,7 +140,7 @@ static inline void _raw_write_unlock(rwlock_t *rw) * currently active. However, we know we won't have any write * locks. */ -static inline void _raw_read_lock(rwlock_t *rw) +static inline void __raw_read_lock(raw_rwlock_t *rw) { unsigned long tmp, tmp2; @@ -173,7 +157,7 @@ static inline void _raw_read_lock(rwlock_t *rw) smp_mb(); } -static inline void _raw_read_unlock(rwlock_t *rw) +static inline void __raw_read_unlock(rwlock_t *rw) { unsigned long tmp, tmp2; @@ -190,6 +174,6 @@ static inline void _raw_read_unlock(rwlock_t *rw) : "cc"); } -#define _raw_read_trylock(lock) generic_raw_read_trylock(lock) +#define __raw_read_trylock(lock) generic__raw_read_trylock(lock) #endif /* __ASM_SPINLOCK_H */ diff --git a/include/asm-arm/spinlock_types.h b/include/asm-arm/spinlock_types.h new file mode 100644 index 000000000000..43e83f6d2ee5 --- /dev/null +++ b/include/asm-arm/spinlock_types.h @@ -0,0 +1,20 @@ +#ifndef __ASM_SPINLOCK_TYPES_H +#define __ASM_SPINLOCK_TYPES_H + +#ifndef __LINUX_SPINLOCK_TYPES_H +# error "please don't include this file directly" +#endif + +typedef struct { + volatile unsigned int lock; +} raw_spinlock_t; + +#define __RAW_SPIN_LOCK_UNLOCKED { 0 } + +typedef struct { + volatile unsigned int lock; +} raw_rwlock_t; + +#define __RAW_RW_LOCK_UNLOCKED { 0 } + +#endif diff --git a/include/asm-arm/unistd.h b/include/asm-arm/unistd.h index 278de61224d1..c49df635a80f 100644 --- a/include/asm-arm/unistd.h +++ b/include/asm-arm/unistd.h @@ -355,6 +355,9 @@ #define __NR_inotify_init (__NR_SYSCALL_BASE+316) #define __NR_inotify_add_watch (__NR_SYSCALL_BASE+317) #define __NR_inotify_rm_watch (__NR_SYSCALL_BASE+318) +#define __NR_mbind (__NR_SYSCALL_BASE+319) +#define __NR_get_mempolicy (__NR_SYSCALL_BASE+320) +#define __NR_set_mempolicy (__NR_SYSCALL_BASE+321) /* * The following SWIs are ARM private. diff --git a/include/asm-arm26/hardirq.h b/include/asm-arm26/hardirq.h index 791ee1da9bfa..dc28daab8aa8 100644 --- a/include/asm-arm26/hardirq.h +++ b/include/asm-arm26/hardirq.h @@ -22,8 +22,6 @@ typedef struct { # error HARDIRQ_BITS is too low! #endif -#define irq_enter() (preempt_count() += HARDIRQ_OFFSET) - #ifndef CONFIG_SMP extern asmlinkage void __do_softirq(void); diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h index 6f857be2b644..a9c55490fb82 100644 --- a/include/asm-generic/vmlinux.lds.h +++ b/include/asm-generic/vmlinux.lds.h @@ -103,3 +103,41 @@ VMLINUX_SYMBOL(__kprobes_text_start) = .; \ *(.kprobes.text) \ VMLINUX_SYMBOL(__kprobes_text_end) = .; + + /* DWARF debug sections. + Symbols in the DWARF debugging sections are relative to + the beginning of the section so we begin them at 0. */ +#define DWARF_DEBUG \ + /* DWARF 1 */ \ + .debug 0 : { *(.debug) } \ + .line 0 : { *(.line) } \ + /* GNU DWARF 1 extensions */ \ + .debug_srcinfo 0 : { *(.debug_srcinfo) } \ + .debug_sfnames 0 : { *(.debug_sfnames) } \ + /* DWARF 1.1 and DWARF 2 */ \ + .debug_aranges 0 : { *(.debug_aranges) } \ + .debug_pubnames 0 : { *(.debug_pubnames) } \ + /* DWARF 2 */ \ + .debug_info 0 : { *(.debug_info \ + .gnu.linkonce.wi.*) } \ + .debug_abbrev 0 : { *(.debug_abbrev) } \ + .debug_line 0 : { *(.debug_line) } \ + .debug_frame 0 : { *(.debug_frame) } \ + .debug_str 0 : { *(.debug_str) } \ + .debug_loc 0 : { *(.debug_loc) } \ + .debug_macinfo 0 : { *(.debug_macinfo) } \ + /* SGI/MIPS DWARF 2 extensions */ \ + .debug_weaknames 0 : { *(.debug_weaknames) } \ + .debug_funcnames 0 : { *(.debug_funcnames) } \ + .debug_typenames 0 : { *(.debug_typenames) } \ + .debug_varnames 0 : { *(.debug_varnames) } \ + + /* Stabs debugging sections. */ +#define STABS_DEBUG \ + .stab 0 : { *(.stab) } \ + .stabstr 0 : { *(.stabstr) } \ + .stab.excl 0 : { *(.stab.excl) } \ + .stab.exclstr 0 : { *(.stab.exclstr) } \ + .stab.index 0 : { *(.stab.index) } \ + .stab.indexstr 0 : { *(.stab.indexstr) } \ + .comment 0 : { *(.comment) } diff --git a/include/asm-i386/div64.h b/include/asm-i386/div64.h index 28ed8b296afc..75c67c785bb8 100644 --- a/include/asm-i386/div64.h +++ b/include/asm-i386/div64.h @@ -35,7 +35,7 @@ */ #define div_long_long_rem(a,b,c) div_ll_X_l_rem(a,b,c) -extern inline long +static inline long div_ll_X_l_rem(long long divs, long div, long *rem) { long dum2; diff --git a/include/asm-i386/processor.h b/include/asm-i386/processor.h index 37bef8ed7bed..0a4ec764377c 100644 --- a/include/asm-i386/processor.h +++ b/include/asm-i386/processor.h @@ -679,7 +679,7 @@ static inline void rep_nop(void) However we don't do prefetches for pre XP Athlons currently That should be fixed. */ #define ARCH_HAS_PREFETCH -extern inline void prefetch(const void *x) +static inline void prefetch(const void *x) { alternative_input(ASM_NOP4, "prefetchnta (%1)", @@ -693,7 +693,7 @@ extern inline void prefetch(const void *x) /* 3dnow! prefetch to get an exclusive cache line. Useful for spinlocks to avoid one state transition in the cache coherency protocol. */ -extern inline void prefetchw(const void *x) +static inline void prefetchw(const void *x) { alternative_input(ASM_NOP4, "prefetchw (%1)", diff --git a/include/asm-i386/spinlock.h b/include/asm-i386/spinlock.h index f9ff31f40036..23604350cdf4 100644 --- a/include/asm-i386/spinlock.h +++ b/include/asm-i386/spinlock.h @@ -7,46 +7,21 @@ #include <linux/config.h> #include <linux/compiler.h> -asmlinkage int printk(const char * fmt, ...) - __attribute__ ((format (printf, 1, 2))); - /* * Your basic SMP spinlocks, allowing only a single CPU anywhere - */ - -typedef struct { - volatile unsigned int slock; -#ifdef CONFIG_DEBUG_SPINLOCK - unsigned magic; -#endif -#ifdef CONFIG_PREEMPT - unsigned int break_lock; -#endif -} spinlock_t; - -#define SPINLOCK_MAGIC 0xdead4ead - -#ifdef CONFIG_DEBUG_SPINLOCK -#define SPINLOCK_MAGIC_INIT , SPINLOCK_MAGIC -#else -#define SPINLOCK_MAGIC_INIT /* */ -#endif - -#define SPIN_LOCK_UNLOCKED (spinlock_t) { 1 SPINLOCK_MAGIC_INIT } - -#define spin_lock_init(x) do { *(x) = SPIN_LOCK_UNLOCKED; } while(0) - -/* + * * Simple spin lock operations. There are two variants, one clears IRQ's * on the local processor, one does not. * * We make no fairness assumptions. They have a cost. + * + * (the type definitions are in asm/spinlock_types.h) */ -#define spin_is_locked(x) (*(volatile signed char *)(&(x)->slock) <= 0) -#define spin_unlock_wait(x) do { barrier(); } while(spin_is_locked(x)) +#define __raw_spin_is_locked(x) \ + (*(volatile signed char *)(&(x)->slock) <= 0) -#define spin_lock_string \ +#define __raw_spin_lock_string \ "\n1:\t" \ "lock ; decb %0\n\t" \ "jns 3f\n" \ @@ -57,7 +32,7 @@ typedef struct { "jmp 1b\n" \ "3:\n\t" -#define spin_lock_string_flags \ +#define __raw_spin_lock_string_flags \ "\n1:\t" \ "lock ; decb %0\n\t" \ "jns 4f\n\t" \ @@ -73,86 +48,71 @@ typedef struct { "jmp 1b\n" \ "4:\n\t" +static inline void __raw_spin_lock(raw_spinlock_t *lock) +{ + __asm__ __volatile__( + __raw_spin_lock_string + :"=m" (lock->slock) : : "memory"); +} + +static inline void __raw_spin_lock_flags(raw_spinlock_t *lock, unsigned long flags) +{ + __asm__ __volatile__( + __raw_spin_lock_string_flags + :"=m" (lock->slock) : "r" (flags) : "memory"); +} + +static inline int __raw_spin_trylock(raw_spinlock_t *lock) +{ + char oldval; + __asm__ __volatile__( + "xchgb %b0,%1" + :"=q" (oldval), "=m" (lock->slock) + :"0" (0) : "memory"); + return oldval > 0; +} + /* - * This works. Despite all the confusion. - * (except on PPro SMP or if we are using OOSTORE) + * __raw_spin_unlock based on writing $1 to the low byte. + * This method works. Despite all the confusion. + * (except on PPro SMP or if we are using OOSTORE, so we use xchgb there) * (PPro errata 66, 92) */ #if !defined(CONFIG_X86_OOSTORE) && !defined(CONFIG_X86_PPRO_FENCE) -#define spin_unlock_string \ +#define __raw_spin_unlock_string \ "movb $1,%0" \ :"=m" (lock->slock) : : "memory" -static inline void _raw_spin_unlock(spinlock_t *lock) +static inline void __raw_spin_unlock(raw_spinlock_t *lock) { -#ifdef CONFIG_DEBUG_SPINLOCK - BUG_ON(lock->magic != SPINLOCK_MAGIC); - BUG_ON(!spin_is_locked(lock)); -#endif __asm__ __volatile__( - spin_unlock_string + __raw_spin_unlock_string ); } #else -#define spin_unlock_string \ +#define __raw_spin_unlock_string \ "xchgb %b0, %1" \ :"=q" (oldval), "=m" (lock->slock) \ :"0" (oldval) : "memory" |