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authorJoachim Deguara <joachim.deguara@amd.com>2007-05-02 19:27:18 +0200
committerAndi Kleen <andi@basil.nowhere.org>2007-05-02 19:27:18 +0200
commit2f3c30e6a886ddaf65cb74df82c03245050ff0aa (patch)
tree1aad760d9503b210ae0ec9341c81e02fdbdda9c4 /arch/i386
parent1bdae4583e7abd2c1daedfc9f46ac6420a26c1b0 (diff)
downloadop-kernel-dev-2f3c30e6a886ddaf65cb74df82c03245050ff0aa.zip
op-kernel-dev-2f3c30e6a886ddaf65cb74df82c03245050ff0aa.tar.gz
[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 <joachim.deguara@amd.com> Signed-off-by: Andi Kleen <ak@suse.de> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'arch/i386')
-rw-r--r--arch/i386/kernel/cpu/mcheck/k7.c3
-rw-r--r--arch/i386/kernel/cpu/mcheck/mce.c3
2 files changed, 4 insertions, 2 deletions
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:
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