drm/amd/pp: Implement get/set_power_profile_mode on smu7
It show what parameters can be configured to tune
the behavior of natural dpm for perf/watt on smu7.
user can select the mode per workload, but even the default per
workload settings are not bulletproof.
user can configure custom settings per different use case
for better perf or better perf/watt.
cat pp_power_profile_mode
NUM MODE_NAME SCLK_UP_HYST SCLK_DOWN_HYST SCLK_ACTIVE_LEVEL MCLK_UP_HYST MCLK_DOWN_HYST MCLK_ACTIVE_LEVEL
0 3D_FULL_SCREEN: 0 100 30 0 100 10
1 POWER_SAVING: 10 0 30 - - -
2 VIDEO: - - - 10 16 31
3 VR: 0 11 50 0 100 10
4 COMPUTE: 0 5 30 - - -
5 CUSTOM: 0 0 0 0 0 0
* CURRENT: 0 100 30 0 100 10
Under manual dpm level,
user can echo "0/1/2/3/4">pp_power_profile_mode
to select 3D_FULL_SCREEN/POWER_SAVING/VIDEO/VR/COMPUTE
mode.
echo "5 * * * * * * * *">pp_power_profile_mode
to set custom settings.
"5 * * * * * * * *" mean "CUSTOM enable_sclk SCLK_UP_HYST
SCLK_DOWN_HYST SCLK_ACTIVE_LEVEL enable_mclk MCLK_UP_HYST
MCLK_DOWN_HYST MCLK_ACTIVE_LEVEL"
if the parameter enable_sclk/enable_mclk is true,
driver will update the following parameters to dpm table.
if false, ignore the following parameters.
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
1 file changed