From: James Hogan <james.hogan@imgtec.com>
Date: Wed, 27 Feb 2013 21:54:51 +0000 (+0000)
Subject: metag: perf: don't reset TXTACTCYC
X-Git-Tag: omap-for-v3.10/dt-fixes-for-merge-window~101^2~11
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1fb4dc5c39af941d3abc597337e0ea776bfce0f2;p=pandora-kernel.git

metag: perf: don't reset TXTACTCYC

The thread active cycle counter TXTACTCYC is used in __delay so it
shouldn't really be reset to zero by perf. Fix perf to just read the
value, and instead of clearing it, record the prev_count value in
enable_counter so that the delta calculations know about the previous
value.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
---

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