linux-kernel - Re: [PATCH 0/3] drm/lima: expose usage statistics via fdinfo

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Date:   Sun, 2 Apr 2023 18:22:34 +0800
From:   Qiang Yu <yuq825@...il.com>
To:     Erico Nunes <nunes.erico@...il.com>
Cc:     dri-devel@...ts.freedesktop.org, David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>, lima@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/3] drm/lima: expose usage statistics via fdinfo

Applied to drm-misc-next.

On Mon, Mar 13, 2023 at 11:09 AM Qiang Yu <yuq825@...il.com> wrote:
>
> Patch set is:
> Reviewed-by: Qiang Yu <yuq825@...il.com>
>
> Looks like drm-misc-next does not contain "df622729ddbf drm/scheduler:
> track GPU active time per entity" yet.
> Will apply later.
>
> Regards,
> Qiang
>
> On Mon, Mar 13, 2023 at 7:31 AM Erico Nunes <nunes.erico@...il.com> wrote:
> >
> > Expose lima gp and pp usage stats through fdinfo, following
> > Documentation/gpu/drm-usage-stats.rst.
> > Borrowed from these previous implementations:
> >
> > "df622729ddbf drm/scheduler: track GPU active time per entity" added
> > usage time accounting to drm scheduler, which is where the data used
> > here comes from.
> >
> > Then the main implementation is based on these etnaviv commits:
> > "d306788b6e1b drm/etnaviv: allocate unique ID per drm_file" and
> > "97804a133c68 drm/etnaviv: export client GPU usage statistics via
> > fdinfo"
> >
> > Also "874442541133 drm/amdgpu: Add show_fdinfo() interface" since lima
> > has a context manager very similar to amdgpu and all contexts created
> > (and released) at the ctx_mgr level need to be accounted for.
> >
> > Tested with the generic "gputop" tool currently available as patches to
> > igt, a sample run with this patchset looks like this:
> >
> > DRM minor 128
> >     PID               NAME             gp                        pp
> >     4322   glmark2-es2-way |█████▊                  ||██████████████████      |
> >     3561            weston |▎                       ||███▌                    |
> >     4159          Xwayland |▏                       ||▉                       |
> >     4154          glxgears |▏                       ||▎                       |
> >     3661           firefox |▏                       ||▏                       |
> >
> >
> > Erico Nunes (3):
> >   drm/lima: add usage counting method to ctx_mgr
> >   drm/lima: allocate unique id per drm_file
> >   drm/lima: add show_fdinfo for drm usage stats
> >
> >  drivers/gpu/drm/lima/lima_ctx.c    | 30 ++++++++++++++++++++-
> >  drivers/gpu/drm/lima/lima_ctx.h    |  3 +++
> >  drivers/gpu/drm/lima/lima_device.h |  3 +++
> >  drivers/gpu/drm/lima/lima_drv.c    | 43 +++++++++++++++++++++++++++++-
> >  drivers/gpu/drm/lima/lima_drv.h    |  1 +
> >  5 files changed, 78 insertions(+), 2 deletions(-)
> >
> > --
> > 2.39.2
> >