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From: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
To: linux-kernel@vger.kernel.org
Cc: Ingo Molnar <mingo@elte.hu>, "H. Peter Anvin" <hpa@zytor.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	Cyrill Gorcunov <gorcunov@openvz.org>
Subject: [PATCH 2/2] x86, mce: Introduce intel_thermal_supported()
Date: Mon, 14 Dec 2009 17:57:00 +0900	[thread overview]
Message-ID: <4B25FDDC.407@jp.fujitsu.com> (raw)

It looks better to have a common function.

Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Cc: Cyrill Gorcunov <gorcunov@openvz.org>
---
 arch/x86/kernel/cpu/mcheck/therm_throt.c |   17 ++++++++++++-----
 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 687638e..4f4c8bb 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;
 
 	/*
-- 
1.6.5.6



             reply	other threads:[~2009-12-14  8:57 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-12-14  8:57 Hidetoshi Seto [this message]
2009-12-14  9:39 ` [PATCH 2/2] x86, mce: Introduce intel_thermal_supported() Ingo Molnar
2009-12-14  9:49 ` [tip:x86/urgent] x86, mce: Clean up thermal init by introducing intel_thermal_supported() tip-bot for Hidetoshi Seto

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