It's already defined here: arch/x86/kernel/cpu/addon_cpuid_features.c: { X86_FEATURE_IDA, CR_EAX, 1, 0x00000006 }, Signed-off-by: Thomas Renninger <trenn@xxxxxxx> Cc: <linux-acpi@xxxxxxxxxxxxxxx> Cc: "Pallipadi, Venkatesh" <venkatesh.pallipadi@xxxxxxxxx> Cc: <cpufreq@xxxxxxxxxxxxxxx> --- arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c | 10 +++------- 1 files changed, 3 insertions(+), 7 deletions(-) diff --git a/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c b/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c index 148857a..aaf832f 100644 --- a/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c +++ b/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c @@ -60,7 +60,6 @@ enum { }; #define INTEL_MSR_RANGE (0xffff) -#define CPUID_6_ECX_APERFMPERF_CAPABILITY (0x1) struct acpi_cpufreq_data { struct acpi_processor_performance *acpi_data; @@ -645,12 +644,9 @@ static int acpi_cpufreq_cpu_init(struct cpufreq_policy *policy) acpi_processor_notify_smm(THIS_MODULE); /* Check for APERF/MPERF support in hardware */ - if (c->x86_vendor == X86_VENDOR_INTEL && c->cpuid_level >= 6) { - unsigned int ecx; - ecx = cpuid_ecx(6); - if (ecx & CPUID_6_ECX_APERFMPERF_CAPABILITY) - acpi_cpufreq_driver.getavg = get_measured_perf; - } + if (cpu_has(¤t_cpu_data, X86_FEATURE_IDA)) + acpi_cpufreq_driver.getavg = get_measured_perf; + dprintk("CPU%u - ACPI performance management activated.\n", cpu); for (i = 0; i < perf->state_count; i++) -- 1.6.0.2 -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html