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drm/amd/powerplay: add registry key to disable ACG 

For the dummy ACG fuses,need to disable ACG, otherwise
corruption will be caused.

Signed-off-by: Kenneth Feng <kenneth.feng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Kenneth Feng 2018-04-20 13:55:39 +08:00 committed by Alex Deucher
parent b1f223c02a
commit e0e93d03ef
2 changed files with 6 additions and 0 deletions
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5
drivers/gpu/drm/amd/powerplay/hwmgr/vega12_processpptables.c
View File

@ -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->AcgGfxclkSpreadPercent = smc_dpm_table.acggfxclkspreadpercent;
ppsmc_pptable->AcgGfxclkSpreadFreq = smc_dpm_table.acggfxclkspreadfreq; 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; return 0;
} }

1
drivers/gpu/drm/amd/powerplay/inc/hwmgr.h
View File

@ -82,6 +82,7 @@ enum PP_FEATURE_MASK {
PP_SOCCLK_DPM_MASK = 0x1000, PP_SOCCLK_DPM_MASK = 0x1000,
PP_DCEFCLK_DPM_MASK = 0x2000, PP_DCEFCLK_DPM_MASK = 0x2000,
PP_OVERDRIVE_MASK = 0x4000, PP_OVERDRIVE_MASK = 0x4000,
PP_ACG_MASK = 0x10000,
}; };
enum PHM_BackEnd_Magic { enum PHM_BackEnd_Magic {