linux-kernel - Re: [PATCH 3/7] perf, x86: Implement IBS event configuration

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Message-ID: <20110812195154.GK11702@erda.amd.com>
Date:	Fri, 12 Aug 2011 21:51:54 +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 3/7] perf, x86: Implement IBS event configuration

On 02.08.11 07:35:33, Peter Zijlstra wrote:
> On Thu, 2011-07-28 at 15:46 +0200, Robert Richter wrote:
> > +static struct perf_ibs perf_ibs_fetch = {
> > +       .pmu = {
> > +               .event_init     = perf_ibs_init,
> > +               .add            = perf_ibs_add,
> > +               .del            = perf_ibs_del,
> > +       },
> > +       .msr                    = MSR_AMD64_IBSFETCHCTL,
> > +       .config_mask            = IBS_FETCH_CONFIG_MASK,
> > +       .cnt_mask               = IBS_FETCH_MAX_CNT,
> > +       .enable_mask            = IBS_FETCH_ENABLE,
> > +};
> > +
> > +static struct perf_ibs perf_ibs_op = {
> > +       .pmu = {
> > +               .event_init     = perf_ibs_init,
> > +               .add            = perf_ibs_add,
> > +               .del            = perf_ibs_del,
> > +       },
> > +       .msr                    = MSR_AMD64_IBSOPCTL,
> > +       .config_mask            = IBS_OP_CONFIG_MASK,
> > +       .cnt_mask               = IBS_OP_MAX_CNT,
> > +       .enable_mask            = IBS_OP_ENABLE,
> >  };
> >   
> 
> It it intentional that you map the IBS things to the hw task_context ?

I didn't get you here.

-Robert

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

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