drm/msm: Expose client engine utilization via fdinfo
authorRob Clark <robdclark@chromium.org>
Thu, 9 Jun 2022 17:42:12 +0000 (10:42 -0700)
committerDmitry Baryshkov <dmitry.baryshkov@linaro.org>
Tue, 5 Jul 2022 03:01:11 +0000 (06:01 +0300)
commitcfebe3fd599634540960ec37e3a6c2eb8b5bed2f
treeee15b72725d4fe0ee111823282b84ec2f88caae6
parent1981c35bf7533d70f295b184bbb638d280fe2f36
drm/msm: Expose client engine utilization via fdinfo

Similar to AMD commit
874442541133 ("drm/amdgpu: Add show_fdinfo() interface"), using the
infrastructure added in previous patches, we add basic client info
and GPU engine utilisation for msm.

Example output:

# cat /proc/`pgrep glmark2`/fdinfo/6
pos: 0
flags: 02400002
mnt_id: 21
ino: 162
drm-driver: msm
drm-client-id: 7
drm-engine-gpu: 1734371319 ns
drm-cycles-gpu: 1153645024
drm-maxfreq-gpu: 800000000 Hz

See also: https://patchwork.freedesktop.org/patch/468505/

v2: Add dev-maxfreq-$engine and update drm-usage-stats.rst
v3: spelling and compiler warning

Signed-off-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Acked-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Patchwork: https://patchwork.freedesktop.org/patch/488906/
Link: https://lore.kernel.org/r/20220609174213.2265938-2-robdclark@gmail.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Documentation/gpu/drm-usage-stats.rst
drivers/gpu/drm/msm/msm_drv.c
drivers/gpu/drm/msm/msm_gpu.c
drivers/gpu/drm/msm/msm_gpu.h