From: Peter Zijlstra <a.p.zijlstra@chello.nl>
Date: Fri, 5 Mar 2010 12:49:35 +0000 (+0100)
Subject: perf, x86: Clear the LBRs on init
X-Git-Tag: v2.6.35-rc1~522^2~226
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=74846d35b24b6efd61bb88a0a750b6bb257e6e78;p=pandora-kernel.git

perf, x86: Clear the LBRs on init

Some CPUs have errata where the LBR is not cleared on Power-On. So always
clear the LBRs before use.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Arnaldo Carvalho de Melo <acme@infradead.org>
Cc: paulus@samba.org
Cc: eranian@google.com
Cc: robert.richter@amd.com
Cc: fweisbec@gmail.com
LKML-Reference: <20100305154128.966563424@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---

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