linux-kernel - Re: [PATCH 1/2] perf, x86: use INTEL_UEVENT_EXTRA_REG to define MSR_OFFCORE_RSP

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Message-ID: <20130819143924.GG24092@twins.programming.kicks-ass.net>
Date:	Mon, 19 Aug 2013 16:39:24 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Stephane Eranian <eranian@...gle.com>
Cc:	"Yan, Zheng" <zheng.z.yan@...el.com>,
	LKML <linux-kernel@...r.kernel.org>,
	"mingo@...e.hu" <mingo@...e.hu>,
	"ak@...ux.intel.com" <ak@...ux.intel.com>
Subject: Re: [PATCH 1/2] perf, x86: use INTEL_UEVENT_EXTRA_REG to define
 MSR_OFFCORE_RSP_X

On Mon, Aug 19, 2013 at 04:24:56PM +0200, Stephane Eranian wrote:
> On Thu, Jul 18, 2013 at 11:02 AM, Yan, Zheng <zheng.z.yan@...el.com> wrote:
> > From: "Yan, Zheng" <zheng.z.yan@...el.com>
> >
> > Silvermont (22nm Atom) has two offcore response configuration MSRs,
> > unlike other Intel CPU, its event code for MSR_OFFCORE_RSP_1 is 0x02b7.
> > To avoid complicating intel_fixup_er(), use INTEL_UEVENT_EXTRA_REG to
> > define MSR_OFFCORE_RSP_X. So intel_fixup_er() can find the event code
> > for OFFCORE_RSP_N by x86_pmu.extra_regs[N].event.
> >
> > Signed-off-by: Yan, Zheng <zheng.z.yan@...el.com>
> 
> Works for me on IVB and NHM.
> 
> Reviewed-by: Stephane Eranian <eranian@...gle.com>

Thanks guys, and sorry for getting them lost in the inbox :/
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