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authorIngo Molnar <mingo@elte.hu>2008-08-11 12:57:01 +0200
committerIngo Molnar <mingo@elte.hu>2008-08-11 12:57:01 +0200
commit6de9c70882ecdee63a652d493bf2353963bd4c22 (patch)
tree9d219e705492331c97f5f7dccce3b0b1a29251bf /arch/sparc/include/asm/rwsem-const.h
parentd406d21d90dce2e66c7eb4a44605aac947fe55fb (diff)
parent796aadeb1b2db9b5d463946766c5bbfd7717158c (diff)
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Merge branch 'linus' into x86/cleanups
Diffstat (limited to 'arch/sparc/include/asm/rwsem-const.h')
-rw-r--r--arch/sparc/include/asm/rwsem-const.h12
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 */