From: Kenneth Feng <kenneth.feng-5C7GfCeVMHo@public.gmane.org>
To: amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
Cc: Kenneth Feng <kenneth.feng-5C7GfCeVMHo@public.gmane.org>
Subject: [PATCH 2/2] drm/amd/powerplay: add registry key to disable ACG
Date: Thu, 19 Apr 2018 15:11:36 +0800 [thread overview]
Message-ID: <1524121896-24753-1-git-send-email-kenneth.feng@amd.com> (raw)
For the dummy ACG fuses,need to disable ACG, otherwise
corruption will be caused.
Change-Id: I03db372bb6e934e9230f0745aa19c683adfdeccb
Signed-off-by: Kenneth Feng <kenneth.feng@amd.com>
---
drivers/gpu/drm/amd/powerplay/hwmgr/vega12_processpptables.c | 5 +++++
drivers/gpu/drm/amd/powerplay/inc/hwmgr.h | 1 +
2 files changed, 6 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;
}
diff --git a/drivers/gpu/drm/amd/powerplay/inc/hwmgr.h b/drivers/gpu/drm/amd/powerplay/inc/hwmgr.h
index 9b3dd7d..9afa5fe 100644
--- a/drivers/gpu/drm/amd/powerplay/inc/hwmgr.h
+++ b/drivers/gpu/drm/amd/powerplay/inc/hwmgr.h
@@ -82,6 +82,7 @@ enum PP_FEATURE_MASK {
PP_SOCCLK_DPM_MASK = 0x1000,
PP_DCEFCLK_DPM_MASK = 0x2000,
PP_OVERDRIVE_MASK = 0x4000,
+ PP_ACG_MASK = 0x10000000,
};
enum PHM_BackEnd_Magic {
--
2.7.4
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next reply other threads:[~2018-04-19 7:11 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-19 7:11 Kenneth Feng [this message]
[not found] ` <1524121896-24753-1-git-send-email-kenneth.feng-5C7GfCeVMHo@public.gmane.org>
2018-04-19 7:47 ` [PATCH 2/2] drm/amd/powerplay: add registry key to disable ACG Huang Rui
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