diff options
Diffstat (limited to 'include/asm-sparc')
| -rw-r--r-- | include/asm-sparc/atomic.h | 1 | ||||
| -rw-r--r-- | include/asm-sparc/mutex.h | 9 |
2 files changed, 10 insertions, 0 deletions
diff --git a/include/asm-sparc/atomic.h b/include/asm-sparc/atomic.h index accb4967e9d2..e1033170bd3a 100644 --- a/include/asm-sparc/atomic.h +++ b/include/asm-sparc/atomic.h @@ -20,6 +20,7 @@ typedef struct { volatile int counter; } atomic_t; extern int __atomic_add_return(int, atomic_t *); extern int atomic_cmpxchg(atomic_t *, int, int); +#define atomic_xchg(v, new) (xchg(&((v)->counter), new)) extern int atomic_add_unless(atomic_t *, int, int); extern void atomic_set(atomic_t *, int); diff --git a/include/asm-sparc/mutex.h b/include/asm-sparc/mutex.h new file mode 100644 index 000000000000..458c1f7fbc18 --- /dev/null +++ b/include/asm-sparc/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> |