diff options
Diffstat (limited to 'rts/include/stg/SMP.h')
| -rw-r--r-- | rts/include/stg/SMP.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/rts/include/stg/SMP.h b/rts/include/stg/SMP.h index 0800c87786..c9ff736032 100644 --- a/rts/include/stg/SMP.h +++ b/rts/include/stg/SMP.h @@ -18,6 +18,25 @@ void arm_atomic_spin_lock(void); void arm_atomic_spin_unlock(void); #endif +// Unconditionally atomic operations +// These are atomic even in the non-threaded RTS. These are necessary in the +// Proftimer implementation, which may be called from the pthreads-based +// ITimer implementation. +#define RELAXED_LOAD_ALWAYS(ptr) __atomic_load_n(ptr, __ATOMIC_RELAXED) +#define RELAXED_STORE_ALWAYS(ptr,val) __atomic_store_n(ptr, val, __ATOMIC_RELAXED) +#define RELAXED_ADD_ALWAYS(ptr,val) __atomic_add_fetch(ptr, val, __ATOMIC_RELAXED) + +// Acquire/release atomic operations +#define ACQUIRE_LOAD_ALWAYS(ptr) __atomic_load_n(ptr, __ATOMIC_ACQUIRE) +#define RELEASE_STORE_ALWAYS(ptr,val) __atomic_store_n(ptr, val, __ATOMIC_RELEASE) + +// Sequentially consistent atomic operations +#define SEQ_CST_LOAD_ALWAYS(ptr) __atomic_load_n(ptr, __ATOMIC_SEQ_CST) +#define SEQ_CST_STORE_ALWAYS(ptr,val) __atomic_store_n(ptr, val, __ATOMIC_SEQ_CST) +#define SEQ_CST_ADD_ALWAYS(ptr,val) __atomic_add_fetch(ptr, val, __ATOMIC_SEQ_CST) +#define SEQ_CST_SUB_ALWAYS(ptr,val) __atomic_sub_fetch(ptr, val, __ATOMIC_SEQ_CST) + + #if defined(THREADED_RTS) /* ---------------------------------------------------------------------------- |