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

[Qiang Yu]

Patch set is:
Reviewed-by: Qiang Yu <yuq825@xxxxxxxxx>

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@xxxxxxxxx> 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
>