diff options
author | Borislav Petkov <borislav.petkov@amd.com> | 2010-03-31 15:56:43 -0400 |
---|---|---|
committer | H. Peter Anvin <hpa@zytor.com> | 2010-04-09 17:05:50 -0400 |
commit | d65ad45cd82a0db9544469b8c54f5dc5cafbb2d8 (patch) | |
tree | 35055e3261c6c75e0d5bd6df00603233f8f47fea /arch/x86/kernel/cpu/intel.c | |
parent | 73860c6b2fd159a35637e233d735e36887c266ad (diff) |
x86: Unify APERF/MPERF support
Initialize this CPUID flag feature in common code. It could be made a
standalone function later, maybe, if more functionality is duplicated.
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
LKML-Reference: <1270065406-1814-4-git-send-email-bp@amd64.org>
Reviewed-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'arch/x86/kernel/cpu/intel.c')
-rw-r--r-- | arch/x86/kernel/cpu/intel.c | 6 |
1 files changed, 0 insertions, 6 deletions
diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c index 7e1cca13af35..3830258a5f53 100644 --- a/arch/x86/kernel/cpu/intel.c +++ b/arch/x86/kernel/cpu/intel.c | |||
@@ -352,12 +352,6 @@ static void __cpuinit init_intel(struct cpuinfo_x86 *c) | |||
352 | set_cpu_cap(c, X86_FEATURE_ARCH_PERFMON); | 352 | set_cpu_cap(c, X86_FEATURE_ARCH_PERFMON); |
353 | } | 353 | } |
354 | 354 | ||
355 | if (c->cpuid_level > 6) { | ||
356 | unsigned ecx = cpuid_ecx(6); | ||
357 | if (ecx & 0x01) | ||
358 | set_cpu_cap(c, X86_FEATURE_APERFMPERF); | ||
359 | } | ||
360 | |||
361 | if (cpu_has_xmm2) | 355 | if (cpu_has_xmm2) |
362 | set_cpu_cap(c, X86_FEATURE_LFENCE_RDTSC); | 356 | set_cpu_cap(c, X86_FEATURE_LFENCE_RDTSC); |
363 | if (cpu_has_ds) { | 357 | if (cpu_has_ds) { |