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author | Paul Mundt <lethal@linux-sh.org> | 2009-08-23 18:04:07 +0900 |
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committer | Paul Mundt <lethal@linux-sh.org> | 2009-08-23 18:04:07 +0900 |
commit | c3144fc46f987413df10e83659f0bf1aad76f79e (patch) | |
tree | a09f3c13c32664a617d3981ae111436c3127ccc3 /arch/x86/kernel/cpu/mcheck/mce.c | |
parent | sh: unwinder: cacheline align slab cache objects. (diff) | |
parent | sh: drop static UIO clocks for sh7722, sh7723 and sh7724 (diff) | |
download | linux-dev-c3144fc46f987413df10e83659f0bf1aad76f79e.tar.xz linux-dev-c3144fc46f987413df10e83659f0bf1aad76f79e.zip |
Merge branches 'sh/hwblk' and 'sh/pm-runtime'
Diffstat (limited to 'arch/x86/kernel/cpu/mcheck/mce.c')
-rw-r--r-- | arch/x86/kernel/cpu/mcheck/mce.c | 19 |
1 files changed, 16 insertions, 3 deletions
diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c index 1cfb623ce11c..01213048f62f 100644 --- a/arch/x86/kernel/cpu/mcheck/mce.c +++ b/arch/x86/kernel/cpu/mcheck/mce.c @@ -1226,8 +1226,13 @@ static void mce_init(void) } /* Add per CPU specific workarounds here */ -static void mce_cpu_quirks(struct cpuinfo_x86 *c) +static int mce_cpu_quirks(struct cpuinfo_x86 *c) { + if (c->x86_vendor == X86_VENDOR_UNKNOWN) { + pr_info("MCE: unknown CPU type - not enabling MCE support.\n"); + return -EOPNOTSUPP; + } + /* This should be disabled by the BIOS, but isn't always */ if (c->x86_vendor == X86_VENDOR_AMD) { if (c->x86 == 15 && banks > 4) { @@ -1273,11 +1278,20 @@ static void mce_cpu_quirks(struct cpuinfo_x86 *c) if ((c->x86 > 6 || (c->x86 == 6 && c->x86_model >= 0xe)) && monarch_timeout < 0) monarch_timeout = USEC_PER_SEC; + + /* + * There are also broken BIOSes on some Pentium M and + * earlier systems: + */ + if (c->x86 == 6 && c->x86_model <= 13 && mce_bootlog < 0) + mce_bootlog = 0; } if (monarch_timeout < 0) monarch_timeout = 0; if (mce_bootlog != 0) mce_panic_timeout = 30; + + return 0; } static void __cpuinit mce_ancient_init(struct cpuinfo_x86 *c) @@ -1338,11 +1352,10 @@ void __cpuinit mcheck_init(struct cpuinfo_x86 *c) if (!mce_available(c)) return; - if (mce_cap_init() < 0) { + if (mce_cap_init() < 0 || mce_cpu_quirks(c) < 0) { mce_disabled = 1; return; } - mce_cpu_quirks(c); machine_check_vector = do_machine_check; |