diff options
Diffstat (limited to 'sys/amd64/include/atomic.h')
| -rw-r--r-- | sys/amd64/include/atomic.h | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/sys/amd64/include/atomic.h b/sys/amd64/include/atomic.h index 6d5c6b6..7892d51 100644 --- a/sys/amd64/include/atomic.h +++ b/sys/amd64/include/atomic.h @@ -84,6 +84,10 @@ u_int atomic_fetchadd_int(volatile u_int *p, u_int v); u_long atomic_fetchadd_long(volatile u_long *p, u_long v); int atomic_testandset_int(volatile u_int *p, u_int v); int atomic_testandset_long(volatile u_long *p, u_int v); +void atomic_thread_fence_acq(void); +void atomic_thread_fence_acq_rel(void); +void atomic_thread_fence_rel(void); +void atomic_thread_fence_seq_cst(void); #define ATOMIC_LOAD(TYPE) \ u_##TYPE atomic_load_acq_##TYPE(volatile u_##TYPE *p) @@ -328,6 +332,34 @@ atomic_store_rel_##TYPE(volatile u_##TYPE *p, u_##TYPE v) \ } \ struct __hack +static __inline void +atomic_thread_fence_acq(void) +{ + + __compiler_membar(); +} + +static __inline void +atomic_thread_fence_rel(void) +{ + + __compiler_membar(); +} + +static __inline void +atomic_thread_fence_acq_rel(void) +{ + + __compiler_membar(); +} + +static __inline void +atomic_thread_fence_seq_cst(void) +{ + + __storeload_barrier(); +} + #endif /* KLD_MODULE || !__GNUCLIKE_ASM */ ATOMIC_ASM(set, char, "orb %b1,%0", "iq", v); |
