From: Joachim Deguara Date: Wed, 2 May 2007 17:27:18 +0000 (+0200) Subject: [PATCH] i386: check capability X-Git-Tag: v2.6.22-rc1~1011^2~42 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=2f3c30e6a886ddaf65cb74df82c03245050ff0aa;p=profile%2Fivi%2Fkernel-x86-ivi.git [PATCH] i386: check capability Currently the i386 architecture checks the family for mce capability and this removes that and uses the CPUID information. Tested on a K8 revE and a family10h processor. This eliminates checking of a set AMD procesor family if mce is allowed and relies on the information being in CPUID. Signed-off-by: Joachim Deguara Signed-off-by: Andi Kleen Cc: Andi Kleen Signed-off-by: Andrew Morton --- diff --git a/arch/i386/kernel/cpu/mcheck/k7.c b/arch/i386/kernel/cpu/mcheck/k7.c index 7a24725..f9fa414 100644 --- a/arch/i386/kernel/cpu/mcheck/k7.c +++ b/arch/i386/kernel/cpu/mcheck/k7.c @@ -75,6 +75,9 @@ void amd_mcheck_init(struct cpuinfo_x86 *c) machine_check_vector = k7_machine_check; wmb(); + if (!cpu_has(c, X86_FEATURE_MCE)) + return; + printk (KERN_INFO "Intel machine check architecture supported.\n"); rdmsr (MSR_IA32_MCG_CAP, l, h); if (l & (1<<8)) /* Control register present ? */ diff --git a/arch/i386/kernel/cpu/mcheck/mce.c b/arch/i386/kernel/cpu/mcheck/mce.c index 4f10c62..56cd485 100644 --- a/arch/i386/kernel/cpu/mcheck/mce.c +++ b/arch/i386/kernel/cpu/mcheck/mce.c @@ -38,8 +38,7 @@ void mcheck_init(struct cpuinfo_x86 *c) switch (c->x86_vendor) { case X86_VENDOR_AMD: - if (c->x86==6 || c->x86==15) - amd_mcheck_init(c); + amd_mcheck_init(c); break; case X86_VENDOR_INTEL: