diff options
Diffstat (limited to 'arch/sparc/include/asm/rwsem-const.h')
| -rw-r--r-- | arch/sparc/include/asm/rwsem-const.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/sparc/include/asm/rwsem-const.h b/arch/sparc/include/asm/rwsem-const.h new file mode 100644 index 00000000000..a303c9d64d8 --- /dev/null +++ b/arch/sparc/include/asm/rwsem-const.h @@ -0,0 +1,12 @@ +/* rwsem-const.h: RW semaphore counter constants. */ +#ifndef _SPARC64_RWSEM_CONST_H +#define _SPARC64_RWSEM_CONST_H + +#define RWSEM_UNLOCKED_VALUE 0x00000000 +#define RWSEM_ACTIVE_BIAS 0x00000001 +#define RWSEM_ACTIVE_MASK 0x0000ffff +#define RWSEM_WAITING_BIAS 0xffff0000 +#define RWSEM_ACTIVE_READ_BIAS RWSEM_ACTIVE_BIAS +#define RWSEM_ACTIVE_WRITE_BIAS (RWSEM_WAITING_BIAS + RWSEM_ACTIVE_BIAS) + +#endif /* _SPARC64_RWSEM_CONST_H */ |