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SubjectRe: [PATCH 3/3] perf, uncore: enable ev_sel_ext bit for PCU.
On Mon, Aug 12, 2013 at 05:16:32PM +0200, Peter Zijlstra wrote:
> On Wed, Aug 07, 2013 at 02:17:25PM +0800, Yan, Zheng wrote:
> > From: "Yan, Zheng" <zheng.z.yan@intel.com>
> >
> > PCU uncore event control register has a undocumented ev_sel_ext bit.
> > The bit is needed by Andi's pmu-tools.
>
> Please provide documentation. Andi needing it isn't a good changelog (or
> even reason).

The bit is in the uncore guide, just not in the register documentation,
but in the event descriptions.

e.g. the PCU part calls it "Extra Select Bit"

-Andi

--
ak@linux.intel.com -- Speaking for myself only


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