blob: a303c9d64d845989e313a326f4c5e92f283148a5 [file] [log] [blame]
Sam Ravnborga00736e2008-06-19 20:26:19 +02001/* rwsem-const.h: RW semaphore counter constants. */
2#ifndef _SPARC64_RWSEM_CONST_H
3#define _SPARC64_RWSEM_CONST_H
4
5#define RWSEM_UNLOCKED_VALUE 0x00000000
6#define RWSEM_ACTIVE_BIAS 0x00000001
7#define RWSEM_ACTIVE_MASK 0x0000ffff
8#define RWSEM_WAITING_BIAS 0xffff0000
9#define RWSEM_ACTIVE_READ_BIAS RWSEM_ACTIVE_BIAS
10#define RWSEM_ACTIVE_WRITE_BIAS (RWSEM_WAITING_BIAS + RWSEM_ACTIVE_BIAS)
11
12#endif /* _SPARC64_RWSEM_CONST_H */