diff options
Diffstat (limited to 'include/asm-sparc64')
| -rw-r--r-- | include/asm-sparc64/atomic.h | 1 | ||||
| -rw-r--r-- | include/asm-sparc64/mutex.h | 9 |
2 files changed, 10 insertions, 0 deletions
diff --git a/include/asm-sparc64/atomic.h b/include/asm-sparc64/atomic.h index 11f5aa5..25256bd 100644 --- a/include/asm-sparc64/atomic.h +++ b/include/asm-sparc64/atomic.h @@ -72,6 +72,7 @@ extern int atomic64_sub_ret(int, atomic64_t *); #define atomic64_add_negative(i, v) (atomic64_add_ret(i, v) < 0) #define atomic_cmpxchg(v, o, n) ((int)cmpxchg(&((v)->counter), (o), (n))) +#define atomic_xchg(v, new) (xchg(&((v)->counter), new)) #define atomic_add_unless(v, a, u) \ ({ \ diff --git a/include/asm-sparc64/mutex.h b/include/asm-sparc64/mutex.h new file mode 100644 index 0000000..458c1f7 --- /dev/null +++ b/include/asm-sparc64/mutex.h @@ -0,0 +1,9 @@ +/* + * Pull in the generic implementation for the mutex fastpath. + * + * TODO: implement optimized primitives instead, or leave the generic + * implementation in place, or pick the atomic_xchg() based generic + * implementation. (see asm-generic/mutex-xchg.h for details) + */ + +#include <asm-generic/mutex-dec.h> |