Commit 9ab9cf05 authored by Rex Zhu's avatar Rex Zhu Committed by Alex Deucher
Browse files

drm/amd/powerplay: SCLK will have a big drop with low VDDC when PPlib was enabled. 



SMC uses CurrSclkPllRange structure to keep track of what range of
PLL SCLK is sitting on.  Driver overwrites this value to 0 because
it's part of DPM table and driver doesn't program this.
This change will set this field to 0xFF every time there's a
init SMC table call.

Signed-off-by: default avatarRex Zhu <Rex.Zhu@amd.com>
Reviewed-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent f4833c4f

drivers/gpu/drm/amd/powerplay/hwmgr/polaris10_hwmgr.c

+2 −1
Original line number Diff line number Diff line
@@ -2091,7 +2091,7 @@ static int polaris10_init_smc_table(struct pp_hwmgr *hwmgr) 
				"Failed to populate Clock Stretcher Data Table!",

				return result);

	}



	table->CurrSclkPllRange = 0xff;

	table->GraphicsVoltageChangeEnable  = 1;

	table->GraphicsThermThrottleEnable  = 1;

	table->GraphicsInterval = 1;
@@ -2184,6 +2184,7 @@ static int polaris10_init_smc_table(struct pp_hwmgr *hwmgr) 
	CONVERT_FROM_HOST_TO_SMC_UL(table->SmioMask1);

	CONVERT_FROM_HOST_TO_SMC_UL(table->SmioMask2);

	CONVERT_FROM_HOST_TO_SMC_UL(table->SclkStepSize);

	CONVERT_FROM_HOST_TO_SMC_UL(table->CurrSclkPllRange);

	CONVERT_FROM_HOST_TO_SMC_US(table->TemperatureLimitHigh);

	CONVERT_FROM_HOST_TO_SMC_US(table->TemperatureLimitLow);

	CONVERT_FROM_HOST_TO_SMC_US(table->VoltageResponseTime);

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