a267e2671a
- remove all unsigned from the */atomic.h files - export defines depending on the architecture This commit was SVN r3408.
103 строки
2.3 KiB
C
103 строки
2.3 KiB
C
/*
|
|
* $HEADER$
|
|
*/
|
|
|
|
#ifndef OMPI_SYS_ARCH_ATOMIC_H
|
|
#define OMPI_SYS_ARCH_ATOMIC_H 1
|
|
|
|
/*
|
|
* On sparc64, use casa and casxa (compare and swap) instructions.
|
|
*/
|
|
|
|
#define ASI_P "0x80"
|
|
|
|
#ifdef HAVE_SMP
|
|
#define MEMBAR(type) __asm__ __volatile__ ("membar" type : : : "memory")
|
|
#else
|
|
#define MEMBAR(type)
|
|
#endif
|
|
|
|
|
|
static inline void ompi_atomic_mb(void)
|
|
{
|
|
MEMBAR("#LoadLoad | #LoadStore | #StoreStore | #StoreLoad");
|
|
}
|
|
|
|
|
|
static inline void ompi_atomic_rmb(void)
|
|
{
|
|
MEMBAR("#LoadLoad");
|
|
}
|
|
|
|
|
|
static inline void ompi_atomic_wmb(void)
|
|
{
|
|
MEMBAR("#StoreStore");
|
|
}
|
|
|
|
#define OMPI_ARCHITECTURE_DEFINE_ATOMIC_CMPSET_32
|
|
static inline int ompi_atomic_cmpset_32( volatile int32_t *addr,
|
|
int32_t oldval, int32_t newval)
|
|
{
|
|
int32_t ret = oldval;
|
|
|
|
__asm__ __volatile("casa [%1] " ASI_P ", %2, %0"
|
|
: "+r" (ret)
|
|
: "r" (addr), "r" (newval));
|
|
return (ret == oldval);
|
|
}
|
|
|
|
|
|
static inline int ompi_atomic_cmpset_acq_32( volatile int32_t *addr,
|
|
int32_t oldval, int32_t newval)
|
|
{
|
|
int rc;
|
|
|
|
rc = ompi_atomic_cmpset_32(addr, oldval, newval);
|
|
ompi_atomic_rmb();
|
|
|
|
return rc;
|
|
}
|
|
|
|
|
|
static inline int ompi_atomic_cmpset_rel_32( volatile int32_t *addr,
|
|
int32_t oldval, int32_t newval)
|
|
{
|
|
ompi_atomic_wmb();
|
|
return ompi_atomic_cmpset_32(addr, oldval, newval);
|
|
}
|
|
|
|
#define OMPI_ARCHITECTURE_DEFINE_ATOMIC_CMPSET_64
|
|
static inline int ompi_atomic_cmpset_64( volatile int64_t *addr,
|
|
int64_t oldval, int64_t newval)
|
|
{
|
|
int64_t ret = oldval;
|
|
|
|
__asm__ __volatile("casxa [%1] " ASI_P ", %2, %0"
|
|
: "+r" (ret)
|
|
: "r" (addr), "r" (newval));
|
|
return (ret == oldval);
|
|
}
|
|
|
|
|
|
static inline int ompi_atomic_cmpset_acq_64( volatile int64_t *addr,
|
|
int64_t oldval, int64_t newval)
|
|
{
|
|
int rc;
|
|
|
|
rc = ompi_atomic_cmpset_64(addr, oldval, newval);
|
|
ompi_atomic_rmb();
|
|
|
|
return rc;
|
|
}
|
|
|
|
static inline int ompi_atomic_cmpset_rel_64( volatile int64_t *addr,
|
|
int64_t oldval, int64_t newval)
|
|
{
|
|
ompi_atomic_wmb();
|
|
return ompi_atomic_cmpset_64(addr, oldval, newval);
|
|
}
|
|
|
|
|
|
#endif /* ! OMPI_SYS_ARCH_ATOMIC_H */
|