From: Rob Clark
Add a SYSPROF param for system profiling tools like Mesa's pps-producer
(perfetto) to control behavior related to system-wide performance
counter collection. In particular, for profiling, one wants to ensure
that GPU context switches do not effect perfcounter state, and might
Quoting Rob Clark (2022-03-03 13:47:14)
> On Thu, Mar 3, 2022 at 1:17 PM Rob Clark wrote:
> >
> > On Thu, Mar 3, 2022 at 12:47 PM Stephen Boyd wrote:
> > >
> > > Quoting Rob Clark (2022-03-03 11:46:47)
> > > > +
> > > > + /* then apply new value: */
> > >
> > > It would be safer to swap
On Thu, Mar 3, 2022 at 1:17 PM Rob Clark wrote:
>
> On Thu, Mar 3, 2022 at 12:47 PM Stephen Boyd wrote:
> >
> > Quoting Rob Clark (2022-03-03 11:46:47)
> > > diff --git a/drivers/gpu/drm/msm/msm_gpu.h b/drivers/gpu/drm/msm/msm_gpu.h
> > > index fde9a29f884e..0ba1dbd4e50f 100644
> > > ---
On Thu, Mar 3, 2022 at 12:47 PM Stephen Boyd wrote:
>
> Quoting Rob Clark (2022-03-03 11:46:47)
> > diff --git a/drivers/gpu/drm/msm/msm_gpu.h b/drivers/gpu/drm/msm/msm_gpu.h
> > index fde9a29f884e..0ba1dbd4e50f 100644
> > --- a/drivers/gpu/drm/msm/msm_gpu.h
> > +++
Quoting Rob Clark (2022-03-03 11:46:47)
> diff --git a/drivers/gpu/drm/msm/msm_gpu.h b/drivers/gpu/drm/msm/msm_gpu.h
> index fde9a29f884e..0ba1dbd4e50f 100644
> --- a/drivers/gpu/drm/msm/msm_gpu.h
> +++ b/drivers/gpu/drm/msm/msm_gpu.h
> @@ -330,6 +337,24 @@ struct msm_file_private {
>
From: Rob Clark
Add a SYSPROF param for system profiling tools like Mesa's pps-producer
(perfetto) to control behavior related to system-wide performance
counter collection. In particular, for profiling, one wants to ensure
that GPU context switches do not effect perfcounter state, and might
