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authorLinus Torvalds <torvalds@linux-foundation.org>2008-07-21 09:40:26 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-07-21 09:40:26 -0700
commitf8b71a3a92d69cb1c9c2162f9235d3dd550e4aa0 (patch)
treed0853186f33314a6e45903876d0e94d1619fcca9 /include/asm-sparc/rwsem-const.h
parent42a77a1b8fe4fd78cf8d8fccbaac918bbe888192 (diff)
parente4f25060b87a627f5cda84b8134911d43c919458 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6: (44 commits) sparc: Remove Sparc's asm-offsets for sclow.S sparc64: Update defconfig. sparc64: Add Niagara2 RNG driver. sparc64: Add missing hypervisor service group numbers. sparc64: Remove 4MB and 512K base page size options. sparc64: Convert to generic helpers for IPI function calls. sparc: Use new '%pS' infrastructure to print symbols. sparc32: fix init.c allnoconfig build error sparc64: Config category "Processor type and features" absent sparc: arch/sparc/kernel/apc.c to unlocked_ioctl sparc: join the remaining header files sparc: merge header files with trivial differences sparc: when header files are equal use asm-sparc version sparc: copy sparc64 specific files to asm-sparc sparc: Merge asm-sparc{,64}/asi.h sparc: export openprom.h to userspace sparc: Merge asm-sparc{,64}/types.h sparc: Merge asm-sparc{,64}/termios.h sparc: Merge asm-sparc{,64}/termbits.h sparc: Merge asm-sparc{,64}/setup.h ...
Diffstat (limited to 'include/asm-sparc/rwsem-const.h')
-rw-r--r--include/asm-sparc/rwsem-const.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/include/asm-sparc/rwsem-const.h b/include/asm-sparc/rwsem-const.h
new file mode 100644
index 00000000000..a303c9d64d8
--- /dev/null
+++ b/include/asm-sparc/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 */