static void __cpuinit early_init_intel(struct cpuinfo_x86 *c)
{
- u64 misc_enable;
-
- /* Unmask CPUID levels if masked */
- if (!rdmsrl_safe(MSR_IA32_MISC_ENABLE, &misc_enable) &&
- (misc_enable & MSR_IA32_MISC_ENABLE_LIMIT_CPUID)) {
- misc_enable &= ~MSR_IA32_MISC_ENABLE_LIMIT_CPUID;
- wrmsrl(MSR_IA32_MISC_ENABLE, misc_enable);
- c->cpuid_level = cpuid_eax(0);
+ /* Unmask CPUID levels if masked: */
+ if (c->x86 > 6 || (c->x86 == 6 && c->x86_model >= 0xd)) {
+ u64 misc_enable;
+
+ rdmsrl(MSR_IA32_MISC_ENABLE, misc_enable);
+
+ if (misc_enable & MSR_IA32_MISC_ENABLE_LIMIT_CPUID) {
+ misc_enable &= ~MSR_IA32_MISC_ENABLE_LIMIT_CPUID;
+ wrmsrl(MSR_IA32_MISC_ENABLE, misc_enable);
+ c->cpuid_level = cpuid_eax(0);
+ }
}
if ((c->x86 == 0xf && c->x86_model >= 0x03) ||
ds_init_intel(c);
}
+ if (c->x86 == 6 && c->x86_model == 29 && cpu_has_clflush)
+ set_cpu_cap(c, X86_FEATURE_CLFLUSH_MONITOR);
+
#ifdef CONFIG_X86_64
if (c->x86 == 15)
c->x86_cache_alignment = c->x86_clflush_size * 2;