From: Robert Richter <robert.richter@amd.com>
Date: Thu, 15 Dec 2011 16:56:39 +0000 (+0100)
Subject: perf/x86: Implement 64-bit counter support for IBS
X-Git-Tag: v3.5-rc1~141^2~35^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=db98c5faf8cb350212ea3af786cb3ba0d4e7a01e;p=pandora-kernel.git

perf/x86: Implement 64-bit counter support for IBS

This patch implements 64 bit counter support for IBS. The
sampling period is no longer limited to the hw counter width.

The functions perf_event_set_period() and
perf_event_try_update() can be used as generic functions. They
can replace similar code that is duplicate across architectures.

Signed-off-by: Robert Richter <robert.richter@amd.com>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1323968199-9326-5-git-send-email-robert.richter@amd.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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