x86: Unify APERF/MPERF support

[karo-tx-linux.git] / arch / x86 / kernel / cpu / intel.c

diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c
index 879666f4d871c99a312169bd30aad71049713572..3830258a5f53a508496ab2082971de2445a78b5f 100644 (file)
--- a/arch/x86/kernel/cpu/intel.c
+++ b/arch/x86/kernel/cpu/intel.c
@@ -70,7 +70,8 @@ static void __cpuinit early_init_intel(struct cpuinfo_x86 *c)
        if (c->x86_power & (1 << 8)) {
                set_cpu_cap(c, X86_FEATURE_CONSTANT_TSC);
                set_cpu_cap(c, X86_FEATURE_NONSTOP_TSC);
-               sched_clock_stable = 1;
+               if (!check_tsc_unstable())
+                       sched_clock_stable = 1;
        }
 
        /*
@@ -351,12 +352,6 @@ 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) {