From: Peter Zijlstra <a.p.zijlstra@chello.nl>
Date: Thu, 10 Nov 2011 14:15:42 +0000 (+0100)
Subject: perf, x86: Prefer fixed-purpose counters when scheduling
X-Git-Tag: v3.3-rc1~192^2~40
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4defea8559bc0f97a899d94c8d19d3b8bb802bc4;p=pandora-kernel.git

perf, x86: Prefer fixed-purpose counters when scheduling

This avoids a scheduling failure for cases like:

  cycles, cycles, instructions, instructions (on Core2)

Which would end up being programmed like:

  PMC0, PMC1, FP-instructions, fail

Because all events will have the same weight.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-8tnwb92asqj7xajqqoty4gel@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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