Re: [PATCH 6/6] perf, amd: Enable northbridge performance counterson AMD family 15h

From: Ingo Molnar
Date: Thu Feb 07 2013 - 14:09:37 EST



* Jacob Shin <jacob.shin@xxxxxxx> wrote:

> On Wed, Feb 06, 2013 at 11:26:29AM -0600, Jacob Shin wrote:
> > On AMD family 15h processors, there are 4 new performance counters
> > (in addition to 6 core performance counters) that can be used for
> > counting northbridge events (i.e. DRAM accesses). Their bit fields are
> > almost identical to the core performance counters. However, unlike the
> > core performance counters, these MSRs are shared between multiple
> > cores (that share the same northbridge). We will reuse the same code
> > path as existing family 10h northbridge event constraints handler
> > logic to enforce this sharing.
> >
> > Signed-off-by: Jacob Shin <jacob.shin@xxxxxxx>
>
> Hi Ingo, could you please apply this one to tip as well? I
> recieved tip-bot emails for all other patches in this series
> except for this last one 6/6.
>
> Or was that intentional? If so, what other changes are
> required/ recommended?

Was waiting for Stephane's ack.

Thanks,

Ingo
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