From 52286b9d1c7e8042645cea9840297986cfb12e5a Mon Sep 17 00:00:00 2001 From: Kenneth Feng Date: Fri, 20 Apr 2018 13:55:39 +0800 Subject: [PATCH 4174/5725] drm/amd/powerplay: add registry key to disable ACG For the dummy ACG fuses,need to disable ACG, otherwise corruption will be caused. Change-Id: Ic32b138720cada2de510cbda607c681ad409e748 Signed-off-by: Kenneth Feng Signed-off-by: Kalyan Alle --- drivers/gpu/drm/amd/powerplay/hwmgr/vega12_processpptables.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/vega12_processpptables.c b/drivers/gpu/drm/amd/powerplay/hwmgr/vega12_processpptables.c index 7fa1ba8..888ddca 100644 --- a/drivers/gpu/drm/amd/powerplay/hwmgr/vega12_processpptables.c +++ b/drivers/gpu/drm/amd/powerplay/hwmgr/vega12_processpptables.c @@ -224,6 +224,11 @@ static int append_vbios_pptable(struct pp_hwmgr *hwmgr, PPTable_t *ppsmc_pptable ppsmc_pptable->AcgGfxclkSpreadPercent = smc_dpm_table.acggfxclkspreadpercent; ppsmc_pptable->AcgGfxclkSpreadFreq = smc_dpm_table.acggfxclkspreadfreq; + /* 0xFFFF will disable the ACG feature */ + if (!(hwmgr->feature_mask & PP_ACG_MASK)) { + ppsmc_pptable->AcgThresholdFreqHigh = 0xFFFF; + ppsmc_pptable->AcgThresholdFreqLow = 0xFFFF; + } return 0; } -- 2.7.4