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| author | Keir Fraser <keir@xen.org> | 2010-12-16 19:29:08 +0000 |
|---|---|---|
| committer | Keir Fraser <keir@xen.org> | 2010-12-16 19:29:08 +0000 |
| commit | d24d88e65518211116d166787feff5f6c5711738 (patch) | |
| tree | 967319b9f73244f2b0130a00f9d2daae77861538 /xen/include/asm-x86/x86_64 | |
| parent | 49f09d64e40b5e3c689592abd3e457dd4a7cff5d (diff) | |
| download | xen-d24d88e65518211116d166787feff5f6c5711738.tar.gz xen-d24d88e65518211116d166787feff5f6c5711738.tar.bz2 xen-d24d88e65518211116d166787feff5f6c5711738.zip | |
x86: Define atomic_{read,write}{8,16,32,64} accessor functions.
These absolutely guarantee to read/write a uint*_t with a single atomic
processor instruction.
Also re-define atomic_read/atomic_write (act on atomic_t) similarly.
Signed-off-by: Keir Fraser <keir@xen.org>
Diffstat (limited to 'xen/include/asm-x86/x86_64')
| -rw-r--r-- | xen/include/asm-x86/x86_64/system.h | 5 |
1 files changed, 0 insertions, 5 deletions
diff --git a/xen/include/asm-x86/x86_64/system.h b/xen/include/asm-x86/x86_64/system.h index 3d0a294e3a..4f183c0535 100644 --- a/xen/include/asm-x86/x86_64/system.h +++ b/xen/include/asm-x86/x86_64/system.h @@ -47,11 +47,6 @@ _rc; \ }) -static inline void atomic_write64(uint64_t *p, uint64_t v) -{ - *p = v; -} - #define mb() \ asm volatile ( "mfence" : : : "memory" ) |