linux-kernel - Re: [PATCH 1/2] perf-events: Add support for supplementary event registers v2

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Message-ID: <1289644462.2084.528.camel@laptop>
Date:	Sat, 13 Nov 2010 11:34:22 +0100
From:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
To:	Andi Kleen <andi@...stfloor.org>
Cc:	Stephane Eranian <eranian@...gle.com>,
	linux-kernel@...r.kernel.org, cjashfor@...ux.vnet.ibm.com,
	mingo@...e.hu, fweisbec@...il.com, Andi Kleen <ak@...ux.intel.com>
Subject: Re: [PATCH 1/2] perf-events: Add support for supplementary event
 registers v2

On Sat, 2010-11-13 at 11:17 +0100, Andi Kleen wrote:
> > That would assume a single event doesn't contain offcore and lbr, no?
> > Currently the extra_reg thing assumes there's only one extra reg encoded
> > in the config word.
> 
> It would not be too hard to make it an array if that's needed.

I don't think we want to go there anyway, one extra_reg per config value
is fine.

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