diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/include/storage/barrier.h | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/src/include/storage/barrier.h b/src/include/storage/barrier.h index 33a6d4ee689..cde9cf7d0e3 100644 --- a/src/include/storage/barrier.h +++ b/src/include/storage/barrier.h @@ -53,7 +53,12 @@ extern slock_t dummy_spinlock; /* * icc defines __GNUC__, but doesn't support gcc's inline asm syntax */ +#if defined(__ia64__) || defined(__ia64) +#define pg_memory_barrier() __mf() +#elif defined(__i386__) || defined(__x86_64__) #define pg_memory_barrier() _mm_mfence() +#endif + #define pg_compiler_barrier() __memory_barrier() #elif defined(__GNUC__) @@ -112,8 +117,12 @@ extern slock_t dummy_spinlock; * read barrier to cover that case. We might need to add that later. */ #define pg_memory_barrier() __asm__ __volatile__ ("mb" : : : "memory") -#define pg_read_barrier() __asm__ __volatile__ ("rmb" : : : "memory") +#define pg_read_barrier() __asm__ __volatile__ ("mb" : : : "memory") #define pg_write_barrier() __asm__ __volatile__ ("wmb" : : : "memory") +#elif defined(__hppa) || defined(__hppa__) /* HP PA-RISC */ + +/* HPPA doesn't do either read or write reordering */ +#define pg_memory_barrier() pg_compiler_barrier() #elif __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 1) /* @@ -148,7 +157,7 @@ extern slock_t dummy_spinlock; * fence. But all of our actual implementations seem OK in this regard. */ #if !defined(pg_memory_barrier) -#define pg_memory_barrier(x) \ +#define pg_memory_barrier() \ do { S_LOCK(&dummy_spinlock); S_UNLOCK(&dummy_spinlock); } while (0) #endif |