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x86: Move APERF/MPERF into a X86_FEATURE

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Move the APERFMPERF capacility into a X86_FEATURE flag so that it
can be used outside of the acpi cpufreq driver.

Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Cc: Yanmin <yanmin_zhang@linux.intel.com>
Cc: Dave Jones <davej@redhat.com>
Cc: Len Brown <len.brown@intel.com>
Cc: Yinghai Lu <yhlu.kernel@gmail.com>
Cc: cpufreq@vger.kernel.org
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Peter Zijlstra
2009-09-02 10:56:56 +02:00
committed by Ingo Molnar
parent d6a59aa3a2
commit a8303aaf2b
3 changed files with 9 additions and 7 deletions
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6
arch/x86/kernel/cpu/intel.c
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@ -350,6 +350,12 @@ static void __cpuinit init_intel(struct cpuinfo_x86 *c)
set_cpu_cap(c, X86_FEATURE_ARCH_PERFMON);
}
if (c->cpuid_level > 6) {
unsigned ecx = cpuid_ecx(6);
if (ecx & 0x01)
set_cpu_cap(c, X86_FEATURE_APERFMPERF);
}
if (cpu_has_xmm2)
set_cpu_cap(c, X86_FEATURE_LFENCE_RDTSC);
if (cpu_has_ds) {