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-rw-r--r--arch/x86/kernel/cpu/mcheck/therm_throt.c17
1 files changed, 12 insertions, 5 deletions
diff --git a/arch/x86/kernel/cpu/mcheck/therm_throt.c b/arch/x86/kernel/cpu/mcheck/therm_throt.c
index 0a9b57702be4..81c499eceb21 100644
--- a/arch/x86/kernel/cpu/mcheck/therm_throt.c
+++ b/arch/x86/kernel/cpu/mcheck/therm_throt.c
@@ -256,6 +256,16 @@ asmlinkage void smp_thermal_interrupt(struct pt_regs *regs)
ack_APIC_irq();
}
+/* Thermal monitoring depends on APIC, ACPI and clock modulation */
+static int intel_thermal_supported(struct cpuinfo_x86 *c)
+{
+ if (!cpu_has_apic)
+ return 0;
+ if (!cpu_has(c, X86_FEATURE_ACPI) || !cpu_has(c, X86_FEATURE_ACC))
+ return 0;
+ return 1;
+}
+
void __init mcheck_intel_therm_init(void)
{
/*
@@ -263,8 +273,7 @@ void __init mcheck_intel_therm_init(void)
* LVT value on BSP and use that value to restore APs' thermal LVT
* entry BIOS programmed later
*/
- if (cpu_has(&boot_cpu_data, X86_FEATURE_ACPI) &&
- cpu_has(&boot_cpu_data, X86_FEATURE_ACC))
+ if (intel_thermal_supported(&boot_cpu_data))
lvtthmr_init = apic_read(APIC_LVTTHMR);
}
@@ -274,9 +283,7 @@ void intel_init_thermal(struct cpuinfo_x86 *c)
int tm2 = 0;
u32 l, h;
- /* Thermal monitoring depends on APIC, ACPI and clock modulation */
- if (!cpu_has_apic || !cpu_has(c, X86_FEATURE_ACPI) ||
- !cpu_has(c, X86_FEATURE_ACC))
+ if (!intel_thermal_supported(c))
return;
/*