summaryrefslogtreecommitdiffstats
path: root/include/asm-x86_64/cpufeature.h
diff options
context:
space:
mode:
authorVenkatesh Pallipadi <venkatesh.pallipadi@intel.com>2006-06-26 13:59:59 +0200
committerLinus Torvalds <torvalds@g5.osdl.org>2006-06-26 10:48:22 -0700
commit0080e667550db5ae8c9318181500c413b99ff164 (patch)
tree3d6d162f0017aaa7c6049e785bbcdfc18dbc23ae /include/asm-x86_64/cpufeature.h
parente77deacb7b078156fcadf27b838a4ce1a65eda04 (diff)
[PATCH] x86_64: i386/x86-64 Add nmi watchdog support for new Intel CPUs
Intel now has support for Architectural Performance Monitoring Counters ( Refer to IA-32 Intel Architecture Software Developer's Manual http://www.intel.com/design/pentium4/manuals/253669.htm ). This feature is present starting from Intel Core Duo and Intel Core Solo processors. What this means is, the performance monitoring counters and some performance monitoring events are now defined in an architectural way (using cpuid). And there will be no need to check for family/model etc for these architectural events. Below is the patch to use this performance counters in nmi watchdog driver. Patch handles both i386 and x86-64 kernels. Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/asm-x86_64/cpufeature.h')
-rw-r--r--include/asm-x86_64/cpufeature.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/asm-x86_64/cpufeature.h b/include/asm-x86_64/cpufeature.h
index fbf5a19edbb..ee792faaca0 100644
--- a/include/asm-x86_64/cpufeature.h
+++ b/include/asm-x86_64/cpufeature.h
@@ -67,7 +67,7 @@
#define X86_FEATURE_SYNC_RDTSC (3*32+6) /* RDTSC syncs CPU core */
#define X86_FEATURE_FXSAVE_LEAK (3*32+7) /* FIP/FOP/FDP leaks through FXSAVE */
#define X86_FEATURE_UP (3*32+8) /* SMP kernel running on UP */
-
+#define X86_FEATURE_ARCH_PERFMON (3*32+9) /* Intel Architectural PerfMon */
/* Intel-defined CPU features, CPUID level 0x00000001 (ecx), word 4 */
#define X86_FEATURE_XMM3 (4*32+ 0) /* Streaming SIMD Extensions-3 */