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| author | David S. Miller <davem@davemloft.net> | 2008-07-27 17:09:02 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-07-27 17:09:02 -0700 |
| commit | 5cfc17766685c79d1a348bce24af9c9dbc0d8d67 (patch) | |
| tree | fa45f52df9ef673ae04894c00d8753f2845cb94f /arch/sparc/include/asm/rwsem-const.h | |
| parent | c9272c4f9fbe2087beb3392f526dc5b19efaa56b (diff) | |
| parent | a1bd021e56fff91cc9354ffb232fd9f0f577099c (diff) | |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/sam/sparc
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 */ |