[PATCH v9 0/2] drm/xe/pmu: Enable PMU interface

Dixit, Ashutosh ashutosh.dixit at intel.com
Thu Jun 13 18:39:52 UTC 2024


On Thu, 13 Jun 2024 03:04:09 -0700, Riana Tauro wrote:
>

Hi Riana,

> There are a set of engine group busyness counters provided by HW which are
> perfect fit to be exposed via PMU perf events.
>
> BSPEC: 46559, 46560, 46722, 46729, 52071, 71028
>
> events can be listed using:
> perf list
>   xe_0000_03_00.0/any-engine-group-busy-gt0/         [Kernel PMU event]
>   xe_0000_03_00.0/copy-group-busy-gt0/               [Kernel PMU event]
>   xe_0000_03_00.0/media-group-busy-gt0/              [Kernel PMU event]
>   xe_0000_03_00.0/render-group-busy-gt0/             [Kernel PMU event]

PMU patches merged previously were dropped in 90a8b23f9b85 ("drm/xe/pmu:
Remove PMU from Xe till uapi is finalized") because PMU uapi was expected
to change. Why are we re-posting these old patches again now, without
including the planned uapi changes?

Thanks.
--
Ashutosh


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