summaryrefslogtreecommitdiff
path: root/arch/x86/include/asm/mwait.h
diff options
context:
space:
mode:
authorH. Peter Anvin <hpa@linux.intel.com>2010-09-18 02:36:40 +0400
committerH. Peter Anvin <hpa@linux.intel.com>2010-09-18 02:36:40 +0400
commitbc83cccc761953f878088cdfa682de0970b5561f (patch)
tree32b2ab4495b28b8d579ad35926d96eeee1ccd0aa /arch/x86/include/asm/mwait.h
parent49553c2ef88749dd502687f4eb9c258bb10a4f44 (diff)
downloadlinux-bc83cccc761953f878088cdfa682de0970b5561f.tar.xz
x86, mwait: Move mwait constants to a common header file
We have MWAIT constants spread across three different .c files, for no good reason. Move them all into a common header file. Signed-off-by: H. Peter Anvin <hpa@linux.intel.com> Reviewed-by: Arjan van de Ven <arjan@linux.intel.com> Cc: Len Brown <lenb@kernel.org> LKML-Reference: <tip-*@git.kernel.org>
Diffstat (limited to 'arch/x86/include/asm/mwait.h')
-rw-r--r--arch/x86/include/asm/mwait.h15
1 files changed, 15 insertions, 0 deletions
diff --git a/arch/x86/include/asm/mwait.h b/arch/x86/include/asm/mwait.h
new file mode 100644
index 000000000000..bcdff997668c
--- /dev/null
+++ b/arch/x86/include/asm/mwait.h
@@ -0,0 +1,15 @@
+#ifndef _ASM_X86_MWAIT_H
+#define _ASM_X86_MWAIT_H
+
+#define MWAIT_SUBSTATE_MASK 0xf
+#define MWAIT_CSTATE_MASK 0xf
+#define MWAIT_SUBSTATE_SIZE 4
+#define MWAIT_MAX_NUM_CSTATES 8
+
+#define CPUID_MWAIT_LEAF 5
+#define CPUID5_ECX_EXTENSIONS_SUPPORTED 0x1
+#define CPUID5_ECX_INTERRUPT_BREAK 0x2
+
+#define MWAIT_ECX_INTERRUPT_BREAK 0x1
+
+#endif /* _ASM_X86_MWAIT_H */