linux-kernel - Re: [RFC perf,x86] P4 PMU early draft

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Message-ID: <20100209042348.GA2558@brick.ozlabs.ibm.com>
Date:	Tue, 9 Feb 2010 15:23:48 +1100
From:	Paul Mackerras <paulus@...ba.org>
To:	Cyrill Gorcunov <gorcunov@...il.com>
Cc:	Ingo Molnar <mingo@...e.hu>, Peter Zijlstra <peterz@...radead.org>,
	Stephane Eranian <eranian@...gle.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Don Zickus <dzickus@...hat.com>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [RFC perf,x86] P4 PMU early draft

On Mon, Feb 08, 2010 at 09:45:04PM +0300, Cyrill Gorcunov wrote:

> The main problem in implementing P4 PMU is that it has much more
> restrictions for event to MSR mapping. So to fit into current
> perf_events model I made the following:

Is there somewhere accessible on the web where I can read about the P4
PMU?  I'm interested to see if the constraint representation and
search I used on the POWER processors would be applicable.

Paul.
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