diff options
Diffstat (limited to 'arch/i386')
-rw-r--r-- | arch/i386/atomic_arch.h (renamed from arch/i386/atomic.h) | 33 |
1 files changed, 16 insertions, 17 deletions
diff --git a/arch/i386/atomic.h b/arch/i386/atomic_arch.h index fd222eae..5de862ed 100644 --- a/arch/i386/atomic.h +++ b/arch/i386/atomic_arch.h @@ -1,8 +1,4 @@ -#ifndef _INTERNAL_ATOMIC_H -#define _INTERNAL_ATOMIC_H - -#include <stdint.h> - +#define a_ctz_64 a_ctz_64 static inline int a_ctz_64(uint64_t x) { int r; @@ -11,6 +7,7 @@ static inline int a_ctz_64(uint64_t x) return r; } +#define a_ctz_l a_ctz_l static inline int a_ctz_l(unsigned long x) { long r; @@ -18,31 +15,28 @@ static inline int a_ctz_l(unsigned long x) return r; } +#define a_and_64 a_and_64 static inline void a_and_64(volatile uint64_t *p, uint64_t v) { __asm__( "lock ; andl %1, (%0) ; lock ; andl %2, 4(%0)" : : "r"((long *)p), "r"((unsigned)v), "r"((unsigned)(v>>32)) : "memory" ); } +#define a_or_64 a_or_64 static inline void a_or_64(volatile uint64_t *p, uint64_t v) { __asm__( "lock ; orl %1, (%0) ; lock ; orl %2, 4(%0)" : : "r"((long *)p), "r"((unsigned)v), "r"((unsigned)(v>>32)) : "memory" ); } +#define a_or_l a_or_l static inline void a_or_l(volatile void *p, long v) { __asm__( "lock ; orl %1, %0" : "=m"(*(long *)p) : "r"(v) : "memory" ); } -static inline void *a_cas_p(volatile void *p, void *t, void *s) -{ - __asm__( "lock ; cmpxchg %3, %1" - : "=a"(t), "=m"(*(long *)p) : "a"(t), "r"(s) : "memory" ); - return t; -} - +#define a_cas a_cas static inline int a_cas(volatile int *p, int t, int s) { __asm__( "lock ; cmpxchg %3, %1" @@ -50,61 +44,66 @@ static inline int a_cas(volatile int *p, int t, int s) return t; } +#define a_or a_or static inline void a_or(volatile int *p, int v) { __asm__( "lock ; orl %1, %0" : "=m"(*p) : "r"(v) : "memory" ); } +#define a_and a_and static inline void a_and(volatile int *p, int v) { __asm__( "lock ; andl %1, %0" : "=m"(*p) : "r"(v) : "memory" ); } +#define a_swap a_swap static inline int a_swap(volatile int *x, int v) { __asm__( "xchg %0, %1" : "=r"(v), "=m"(*x) : "0"(v) : "memory" ); return v; } -#define a_xchg a_swap - +#define a_fetch_add a_fetch_add static inline int a_fetch_add(volatile int *x, int v) { __asm__( "lock ; xadd %0, %1" : "=r"(v), "=m"(*x) : "0"(v) : "memory" ); return v; } +#define a_inc a_inc static inline void a_inc(volatile int *x) { __asm__( "lock ; incl %0" : "=m"(*x) : "m"(*x) : "memory" ); } +#define a_dec a_dec static inline void a_dec(volatile int *x) { __asm__( "lock ; decl %0" : "=m"(*x) : "m"(*x) : "memory" ); } +#define a_store a_store static inline void a_store(volatile int *p, int x) { __asm__( "movl %1, %0 ; lock ; orl $0,(%%esp)" : "=m"(*p) : "r"(x) : "memory" ); } +#define a_spin a_spin static inline void a_spin() { __asm__ __volatile__( "pause" : : : "memory" ); } +#define a_barrier a_barrier static inline void a_barrier() { __asm__ __volatile__( "" : : : "memory" ); } +#define a_crash a_crash static inline void a_crash() { __asm__ __volatile__( "hlt" : : : "memory" ); } - - -#endif |