drm/amd: Add detailed GFXOFF stats to debugfs

Browse source

Add debugfs interface to log GFXOFF statistics:

- Read amdgpu_gfxoff_count to get the total GFXOFF entry count at the
  time of query since system power-up

- Write 1 to amdgpu_gfxoff_residency to start logging, and 0 to stop.
  Read it to get average GFXOFF residency % multiplied by 100
  during the last logging interval.

Both features are designed to be keep the values persistent between
suspends.

Signed-off-by: André Almeida <andrealmeid@igalia.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

André Almeida 2022-08-10 20:28:55 -03:00 • committed by Alex Deucher

parent 30f2d2e49e

commit 0ad7347a64

9 changed files with 321 additions and 0 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

168

drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c

View file

2

drivers/gpu/drm/amd/amdgpu/amdgpu_device.c

View file

39

drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c

View file

6

drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.h

View file

45

drivers/gpu/drm/amd/pm/amdgpu_dpm.c

View file

3

drivers/gpu/drm/amd/pm/inc/amdgpu_dpm.h

View file

33

drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c

View file

22

drivers/gpu/drm/amd/pm/swsmu/inc/amdgpu_smu.h

View file

3

drivers/gpu/drm/amd/pm/swsmu/smu_internal.h

View file