Do ARM Cortex-A9 PMU supoort oprofile

Turgis, Frederic f-turgis at ti.com
Thu Mar 1 16:59:23 UTC 2012


Wrong Dave, I meant Dave Long ;-)

OMAP Platform Business Unit - OMAP System Engineering - Platform Enablement - System Multimedia


> Hi Dave,
>
> By the way, in http://lists.linaro.org/pipermail/linaro-dev/2011-September/thread.html#7560, we
> discussed about oprofile timer mode granularity for platforms, which had the PMU bug that loses PMU
> interrupts (4430, 4460 and maybe 4470).
> Was this timer granularity proposed/introduced ? Is it in fact part of perf infrastructure (don't know
> if perf relies directly on oprofile drivers/oprofile infrastructuret) ?
>
> Regards
> Fred
>
> OMAP Platform Business Unit - OMAP System Engineering - Platform Enablement - System Multimedia
>
> >
Texas Instruments France SA, 821 Avenue Jack Kilby, 06270 Villeneuve Loubet. 036 420 040 R.C.S Antibes. Capital de EUR 753.920

-----Original Message-----
> > From: linaro-dev-bounces at lists.linaro.org [mailto:linaro-dev-bounces at lists.linaro.org] On Behalf Of
> > Dave Martin
> > Sent: Thursday, March 01, 2012 9:57 AM
> > To: zachary6626
> > Cc: linaro-dev
> > Subject: Re: Do ARM Cortex-A9 PMU supoort oprofile
> >
> > On Wed, Feb 29, 2012 at 11:21:58PM +0800, zachary6626 wrote:
> > > Sorry disturbing you!
> > >
> > > I have ask google for do ARM Cortex-A9 PMU supoort oprofile, but it do not have a answer
> definitely
> > .
> > >
> > > So i ask you do ARM Cortex-A9 PMU supoort oprofile.
> > >
> > > Can u help me?
> >
> > In general, yes it does work.  But board support is needed in addition
> > to the CPU PMU support.
> >
> > If you're trying to work on omap4 (panda) you may need some extra
> > patches:
> >
> >
> > For more information on this, take a look at the following thread where
> > this issue was discussed recently:
> >
> > http://lists.linaro.org/pipermail/linaro-dev/2012-February/010326.html
> >
> > Cheers
> > ---Dave
> >
> > _______________________________________________
> > linaro-dev mailing list
> > linaro-dev at lists.linaro.org
> > http://lists.linaro.org/mailman/listinfo/linaro-dev




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