diff options
Diffstat (limited to 'include/asm-frv/system.h')
| -rw-r--r-- | include/asm-frv/system.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/include/asm-frv/system.h b/include/asm-frv/system.h index 9f5663ba19f8..59be5443a68f 100644 --- a/include/asm-frv/system.h +++ b/include/asm-frv/system.h @@ -268,5 +268,29 @@ extern uint32_t __cmpxchg_32(uint32_t *v, uint32_t test, uint32_t new); #endif +#include <asm-generic/cmpxchg-local.h> + +static inline unsigned long __cmpxchg_local(volatile void *ptr, + unsigned long old, + unsigned long new, int size) +{ + switch (size) { + case 4: + return cmpxchg(ptr, old, new); + default: + return __cmpxchg_local_generic(ptr, old, new, size); + } + + return old; +} + +/* + * cmpxchg_local and cmpxchg64_local are atomic wrt current CPU. Always make + * them available. + */ +#define cmpxchg_local(ptr, o, n) \ + ((__typeof__(*(ptr)))__cmpxchg_local((ptr), (unsigned long)(o), \ + (unsigned long)(n), sizeof(*(ptr)))) +#define cmpxchg64_local(ptr, o, n) __cmpxchg64_local_generic((ptr), (o), (n)) #endif /* _ASM_SYSTEM_H */ |