linux-kernel - Re: [PATCH 7/7] perf, x86: Implement 64 bit counter support for IBS

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Date:	Mon, 1 Aug 2011 08:13:00 +0200
From:	Robert Richter <robert.richter@....com>
To:	Peter Zijlstra <peterz@...radead.org>
CC:	Ingo Molnar <mingo@...e.hu>,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 7/7] perf, x86: Implement 64 bit counter support for IBS

On 29.07.11 13:01:03, Peter Zijlstra wrote:
> On Thu, 2011-07-28 at 15:46 +0200, Robert Richter wrote:
> > 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.
> 
> We could perhaps place them in kernel/events/pmu-lib.c or so, a place to
> gather useful common code to pmu driver implementations.

As we already have kernel/events/core.c I suggest to put it into
.../common.c?

I planned to factor this out of current perf code for x86 and maybe
other architectures. Want to send separate patches independent from
ibs.

Should I add both functions already to the new file? Maybe this has
some implications to header and makefiles.

-Robert

-- 
Advanced Micro Devices, Inc.
Operating System Research Center

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