diff options
Diffstat (limited to 'sys/i386/include/atomic.h')
| -rw-r--r-- | sys/i386/include/atomic.h | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/sys/i386/include/atomic.h b/sys/i386/include/atomic.h index 9d365bc..adc86ca 100644 --- a/sys/i386/include/atomic.h +++ b/sys/i386/include/atomic.h @@ -86,6 +86,10 @@ void atomic_##NAME##_barr_##TYPE(volatile u_##TYPE *p, u_##TYPE v) int atomic_cmpset_int(volatile u_int *dst, u_int expect, u_int src); u_int atomic_fetchadd_int(volatile u_int *p, u_int v); int atomic_testandset_int(volatile u_int *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) @@ -310,6 +314,34 @@ 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(); +} + #ifdef _KERNEL #ifdef WANT_FUNCTIONS |
