diff options
| author | Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> | 2009-06-15 17:22:49 +0900 |
|---|---|---|
| committer | H. Peter Anvin <hpa@zytor.com> | 2009-06-16 16:56:07 -0700 |
| commit | c697836985e18d9c34897428ba563b13044a6dcd (patch) | |
| tree | baf61b41254ff78b039cb5405422c0dbdaa6a240 /arch/x86/kernel/cpu/mcheck/p5.c | |
| parent | 9e55e44e39798541ba39d57f4b569deb555ae1ce (diff) | |
x86, mce: make mce_disabled boolean
The mce_disabled on 32bit is a tristate variable [1,0,-1],
while 64bit version is boolean [0,1].
This patch makes mce_disabled always boolean, and use mce_p5_enabled
to indicate the third state instead.
Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'arch/x86/kernel/cpu/mcheck/p5.c')
| -rw-r--r-- | arch/x86/kernel/cpu/mcheck/p5.c | 12 |
1 files changed, 5 insertions, 7 deletions
diff --git a/arch/x86/kernel/cpu/mcheck/p5.c b/arch/x86/kernel/cpu/mcheck/p5.c index 747853f9188d..5c0e6533d9bc 100644 --- a/arch/x86/kernel/cpu/mcheck/p5.c +++ b/arch/x86/kernel/cpu/mcheck/p5.c @@ -14,7 +14,7 @@ #include <asm/msr.h> /* By default disabled */ -int mce_p5_enable; +int mce_p5_enabled __read_mostly; /* Machine check handler for Pentium class Intel CPUs: */ static void pentium_machine_check(struct pt_regs *regs, long error_code) @@ -42,15 +42,13 @@ void intel_p5_mcheck_init(struct cpuinfo_x86 *c) { u32 l, h; - /* Check for MCE support: */ - if (!cpu_has(c, X86_FEATURE_MCE)) + /* Default P5 to off as its often misconnected: */ + if (!mce_p5_enabled) return; -#ifdef CONFIG_X86_OLD_MCE - /* Default P5 to off as its often misconnected: */ - if (mce_disabled != -1) + /* Check for MCE support: */ + if (!cpu_has(c, X86_FEATURE_MCE)) return; -#endif machine_check_vector = pentium_machine_check; /* Make sure the vector pointer is visible before we enable MCEs: */ |