[PATCH 00/10] ARM: perf: updates for 3.2
Will Deacon
will.deacon at arm.com
Tue Aug 9 05:42:34 EDT 2011
On Tue, Aug 09, 2011 at 10:35:05AM +0100, Jamie Iles wrote:
> Hi Will,
Hi Jamie,
> On Mon, Aug 08, 2011 at 06:16:01PM +0100, Will Deacon wrote:
> > Hello,
> >
> > This patch series contains a number of updates to the ARM PMU and perf
> > code so that we can support mode exclusion, which is new in debug
> > architecture 7.1 (as implemented by the Cortex-A15). Some of these
> > updates also coincide with work to support System PMUs (PMUs that are
> > not affine to a single CPU) but that is a larger body of work which will
> > be posted separately at a later date.
> >
> > The patches do the following:
> >
> > 1.) Greatly simplify the PMU reservation mechanism so that the
> > handling of platform_devices is moved into perf.
> > 2.) Cleans up the interrupt registration and some of the types used
> > to represent events and registers.
> > 3.) Moves event indexing to start from zero rather than one, making
> > the code more readable and also easier to extend for mode
> > exclusion.
> > 4.) Adds support for mode exclusion (user / kernel / hyp) and
> > implements this for Cortex-A15.
> >
> > I've been running these patches since 3.0, so they've been tested on
> > 1176, 11MPCore, Cortex-A5, Cortex-A9 and Cortex-A15 platforms.
>
> A quick glance through them and they all look nice to me, but I can't
> get them to apply to any tree (next and master). It looks like they're
> based on a tree with changes to the v7 perf support so I'm guessing it's
> your patches with A15 support.
Thanks for taking a look. The patches should just apply against -rc1:
http://www.linux-arm.org/git?p=linux-2.6-wd.git;a=shortlog;h=refs/heads/perf-updates
Cheers,
Will
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