From: Borislav Petkov <borislav.petkov@amd.com>
Date: Wed, 20 Jun 2012 14:17:51 +0000 (+0200)
Subject: x86, microcode, AMD: Check before applying a patch
X-Git-Tag: omap-for-v3.7-rc1/fixes-cpufreq-signed~82^2~6
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=685ca6d797af9d41164dd64dd60145d4946fc152;p=pandora-kernel.git

x86, microcode, AMD: Check before applying a patch

Make sure we're actually applying a microcode patch to a core which
really needs it.

This brings only a very very very minor slowdown on F10:

0.032218828 sec vs 0.056010626 sec with this patch.

And small speedup on F15:

0.487089449 sec vs 0.180551162 sec (from perf output).

Also, fixup comments while at it.

Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
Link: http://lkml.kernel.org/r/1344361461-10076-8-git-send-email-bp@amd64.org
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
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