mirror_ubuntu-kernels/arch/x86/kernel/cpu
Ingo Molnar f436f8bb73 x86: EDAC: MCE: Fix MCE decoding callback logic
Make decoding of MCEs happen only on AMD hardware by registering a
non-default callback only on CPU families which support it.

While looking at the interaction of decode_mce() with the other MCE
code i also noticed a few other things and made the following
cleanups/fixes:

 - Fixed the mce_decode() weak alias - a weak alias is really not
   good here, it should be a proper callback. A weak alias will be
   overriden if a piece of code is built into the kernel - not
   good, obviously.

 - The patch initializes the callback on AMD family 10h and 11h.

 - Added the more correct fallback printk of:

	No support for human readable MCE decoding on this CPU type.
	Transcribe the message and run it through 'mcelog --ascii' to decode.

   On CPUs that dont have a decoder.

 - Made the surrounding code more readable.

Note that the callback allows us to have a default fallback -
without having to check the CPU versions during the printout
itself. When an EDAC module registers itself, it can install the
decode-print function.

(there's no unregister needed as this is core code.)

version -v2 by Borislav Petkov:

 - add K8 to the set of supported CPUs

 - always build in edac_mce_amd since we use an early_initcall now

 - fix checkpatch warnings

Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andi Kleen <andi@firstfloor.org>
LKML-Reference: <20091001141432.GA11410@aftab>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-10-02 15:42:18 +02:00
..
cpufreq Merge branch 'perfcounters-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-09-20 15:54:37 -07:00
mcheck x86: EDAC: MCE: Fix MCE decoding callback logic 2009-10-02 15:42:18 +02:00
mtrr x86, mtrr: Convert loop to a while based construct, avoid naked semicolon 2009-09-20 20:12:21 +02:00
.gitignore Update .gitignore files for generated targets 2008-10-20 11:24:31 -07:00
addon_cpuid_features.c x86 ACPI: Add support for Always Running APIC timer 2009-04-07 18:17:51 -04:00
amd.c trivial: fix missing printk space in amd_k7_smp_check 2009-09-21 15:14:56 +02:00
bugs_64.c x86/cpu: Clean up various files a bit 2009-07-11 11:24:09 +02:00
bugs.c x86/cpu: Clean up various files a bit 2009-07-11 11:24:09 +02:00
centaur.c x86/centaur: merge 32 & 64 bit version 2009-03-14 16:27:29 +01:00
cmpxchg.c x86: move cmpxchg fallbacks to a generic place 2008-08-18 16:05:47 +02:00
common.c perf: Do the big rename: Performance Counters -> Performance Events 2009-09-21 14:28:04 +02:00
cpu_debug.c percpu: cleanup percpu array definitions 2009-06-24 15:13:45 +09:00
cpu.h x86: cpu/cpu.h cleanup 2009-03-23 02:06:51 +05:30
cyrix.c x86/cpu: Clean up various files a bit 2009-07-11 11:24:09 +02:00
hypervisor.c x86: Move tsc_calibration to x86_init_ops 2009-08-31 09:35:47 +02:00
intel_cacheinfo.c Merge branch 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-09-14 07:57:32 -07:00
intel.c x86: Move APERF/MPERF into a X86_FEATURE 2009-09-15 16:51:25 +02:00
Makefile perf: Do the big rename: Performance Counters -> Performance Events 2009-09-21 14:28:04 +02:00
mkcapflags.pl x86: generate names for /proc/cpuinfo from <asm/cpufeature.h> 2008-08-27 19:23:22 -07:00
perf_event.c perf_event, x86: Fix 'perf sched record' crashing the machine 2009-09-23 11:25:56 +02:00
perfctr-watchdog.c perf: Do the big rename: Performance Counters -> Performance Events 2009-09-21 14:28:04 +02:00
powerflags.c x86: generate names for /proc/cpuinfo from <asm/cpufeature.h> 2008-08-27 19:23:22 -07:00
proc.c Merge branch 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-09-14 07:57:32 -07:00
sched.c sched: x86: Name old_perf in a unique way 2009-09-16 11:21:07 +02:00
transmeta.c x86: move various CPU initialization objects into .cpuinit.rodata 2009-03-12 13:13:07 +01:00
umc.c x86: move various CPU initialization objects into .cpuinit.rodata 2009-03-12 13:13:07 +01:00
vmware.c x86: Print the hypervisor returned tsc_khz during boot 2009-09-20 20:25:36 +02:00