diff options
Diffstat (limited to 'arch/arm/include/asm/mutex.h')
| -rw-r--r-- | arch/arm/include/asm/mutex.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/arch/arm/include/asm/mutex.h b/arch/arm/include/asm/mutex.h new file mode 100644 index 00000000..b1479fd0 --- /dev/null +++ b/arch/arm/include/asm/mutex.h @@ -0,0 +1,16 @@ +/* + * arch/arm/include/asm/mutex.h + * + * ARM optimized mutex locking primitives + * + * Please look into asm-generic/mutex-xchg.h for a formal definition. + */ +#ifndef _ASM_MUTEX_H +#define _ASM_MUTEX_H +/* + * On pre-ARMv6 hardware this results in a swp-based implementation, + * which is the most efficient. For ARMv6+, we emit a pair of exclusive + * accesses instead. + */ +#include <asm-generic/mutex-xchg.h> +#endif |