diff options
Diffstat (limited to 'arch/i386/atomic.h')
-rw-r--r-- | arch/i386/atomic.h | 110 |
1 files changed, 0 insertions, 110 deletions
diff --git a/arch/i386/atomic.h b/arch/i386/atomic.h deleted file mode 100644 index fd222eae..00000000 --- a/arch/i386/atomic.h +++ /dev/null @@ -1,110 +0,0 @@ -#ifndef _INTERNAL_ATOMIC_H -#define _INTERNAL_ATOMIC_H - -#include <stdint.h> - -static inline int a_ctz_64(uint64_t x) -{ - int r; - __asm__( "bsf %1,%0 ; jnz 1f ; bsf %2,%0 ; addl $32,%0\n1:" - : "=&r"(r) : "r"((unsigned)x), "r"((unsigned)(x>>32)) ); - return r; -} - -static inline int a_ctz_l(unsigned long x) -{ - long r; - __asm__( "bsf %1,%0" : "=r"(r) : "r"(x) ); - return r; -} - -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" ); -} - -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" ); -} - -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; -} - -static inline int a_cas(volatile int *p, int t, int s) -{ - __asm__( "lock ; cmpxchg %3, %1" - : "=a"(t), "=m"(*p) : "a"(t), "r"(s) : "memory" ); - return t; -} - -static inline void a_or(volatile int *p, int v) -{ - __asm__( "lock ; orl %1, %0" - : "=m"(*p) : "r"(v) : "memory" ); -} - -static inline void a_and(volatile int *p, int v) -{ - __asm__( "lock ; andl %1, %0" - : "=m"(*p) : "r"(v) : "memory" ); -} - -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 - -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; -} - -static inline void a_inc(volatile int *x) -{ - __asm__( "lock ; incl %0" : "=m"(*x) : "m"(*x) : "memory" ); -} - -static inline void a_dec(volatile int *x) -{ - __asm__( "lock ; decl %0" : "=m"(*x) : "m"(*x) : "memory" ); -} - -static inline void a_store(volatile int *p, int x) -{ - __asm__( "movl %1, %0 ; lock ; orl $0,(%%esp)" : "=m"(*p) : "r"(x) : "memory" ); -} - -static inline void a_spin() -{ - __asm__ __volatile__( "pause" : : : "memory" ); -} - -static inline void a_barrier() -{ - __asm__ __volatile__( "" : : : "memory" ); -} - -static inline void a_crash() -{ - __asm__ __volatile__( "hlt" : : : "memory" ); -} - - -#endif |