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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-04 12:19:15 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-04 12:19:15 +0000 |
| commit | 6eb9c5a5657d1fe77b55cc261450f3538d35a94d (patch) | |
| tree | 657d8194422a5daccecfd42d654b8a245ef7b4c8 /src/include/port/atomics/arch-ia64.h | |
| parent | Initial commit. (diff) | |
| download | postgresql-13-upstream.tar.xz postgresql-13-upstream.zip | |
Adding upstream version 13.4.upstream/13.4upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/include/port/atomics/arch-ia64.h')
| -rw-r--r-- | src/include/port/atomics/arch-ia64.h | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/src/include/port/atomics/arch-ia64.h b/src/include/port/atomics/arch-ia64.h new file mode 100644 index 0000000..9feb153 --- /dev/null +++ b/src/include/port/atomics/arch-ia64.h @@ -0,0 +1,29 @@ +/*------------------------------------------------------------------------- + * + * arch-ia64.h + * Atomic operations considerations specific to intel itanium + * + * Portions Copyright (c) 1996-2020, PostgreSQL Global Development Group + * Portions Copyright (c) 1994, Regents of the University of California + * + * NOTES: + * + * src/include/port/atomics/arch-ia64.h + * + *------------------------------------------------------------------------- + */ + +/* + * Itanium is weakly ordered, so read and write barriers require a full + * fence. + */ +#if defined(__INTEL_COMPILER) +# define pg_memory_barrier_impl() __mf() +#elif defined(__GNUC__) +# define pg_memory_barrier_impl() __asm__ __volatile__ ("mf" : : : "memory") +#elif defined(__hpux) +# define pg_memory_barrier_impl() _Asm_mf() +#endif + +/* per architecture manual doubleword accesses have single copy atomicity */ +#define PG_HAVE_8BYTE_SINGLE_COPY_ATOMICITY |