Found a way how to do it by modifying amdgpu driver. If there's any better way please let me know..
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/smu10_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/smu10_hwmgr.c index 5273de3c5b98..70b9fb8d6041 100644 --- a/drivers/gpu/drm/amd/powerplay/hwmgr/smu10_hwmgr.c +++ b/drivers/gpu/drm/amd/powerplay/hwmgr/smu10_hwmgr.c @@ -497,6 +497,8 @@ static int smu10_populate_clock_table(struct pp_hwmgr *hwmgr) smum_send_msg_to_smc(hwmgr, PPSMC_MSG_GetMaxGfxclkFrequency); result = smum_get_argument(hwmgr); // smu10_data->gfx_max_freq_limit = result / 10 * 1000; + smu10_data->gfx_max_freq_limit = 50000; -- Lauri On Fri, Mar 22, 2019 at 12:18 PM Lauri Ehrenpreis <lauri...@gmail.com> wrote: > Hi! > > Is there a way how to limit gpu max clock rate? Currently I can either > leave the clock to automatic mode or force it to specific level > via /sys/class/drm/card0/device/pp_dpm_sclk. But ideally I would like the > clock to be automatically regulated but specify a different upper limit for > power saving reasons. > > -- > Lauri >
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