[PATCH] drm/amd/pm: support ss metrics read for smu11

Lazar, Lijo lijo.lazar at amd.com
Wed May 11 07:44:05 UTC 2022



On 5/11/2022 12:51 PM, Sathishkumar S wrote:
> support reading smartshift apu and dgpu power for smu11 based asic
> 
> v2: add new version of SmuMetrics and make calculation more readable (Lijo)
> v3: avoid calculations that result in -ve values and skip related checks
> v4: use the current power limit on dGPU and exclude smu 11_0_7 (Lijo)
> 
> Signed-off-by: Sathishkumar S <sathishkumar.sundararaju at amd.com>
> Acked-by: Alex Deucher <alexander.deucher at amd.com>
> ---
>   .../pmfw_if/smu11_driver_if_sienna_cichlid.h  |  63 +++++++
>   .../amd/pm/swsmu/smu11/sienna_cichlid_ppt.c   | 161 ++++++++++++++----
>   2 files changed, 187 insertions(+), 37 deletions(-)
> 
> diff --git a/drivers/gpu/drm/amd/pm/swsmu/inc/pmfw_if/smu11_driver_if_sienna_cichlid.h b/drivers/gpu/drm/amd/pm/swsmu/inc/pmfw_if/smu11_driver_if_sienna_cichlid.h
> index 08f0bb2af5d2..280d42778f28 100644
> --- a/drivers/gpu/drm/amd/pm/swsmu/inc/pmfw_if/smu11_driver_if_sienna_cichlid.h
> +++ b/drivers/gpu/drm/amd/pm/swsmu/inc/pmfw_if/smu11_driver_if_sienna_cichlid.h
> @@ -1540,11 +1540,74 @@ typedef struct {
>   
>   } SmuMetrics_V3_t;
>   
> +typedef struct {
> +	uint32_t CurrClock[PPCLK_COUNT];
> +
> +	uint16_t AverageGfxclkFrequencyPreDs;
> +	uint16_t AverageGfxclkFrequencyPostDs;
> +	uint16_t AverageFclkFrequencyPreDs;
> +	uint16_t AverageFclkFrequencyPostDs;
> +	uint16_t AverageUclkFrequencyPreDs;
> +	uint16_t AverageUclkFrequencyPostDs;
> +
> +
> +	uint16_t AverageGfxActivity;
> +	uint16_t AverageUclkActivity;
> +	uint8_t  CurrSocVoltageOffset;
> +	uint8_t  CurrGfxVoltageOffset;
> +	uint8_t  CurrMemVidOffset;
> +	uint8_t  Padding8;
> +	uint16_t AverageSocketPower;
> +	uint16_t TemperatureEdge;
> +	uint16_t TemperatureHotspot;
> +	uint16_t TemperatureMem;
> +	uint16_t TemperatureVrGfx;
> +	uint16_t TemperatureVrMem0;
> +	uint16_t TemperatureVrMem1;
> +	uint16_t TemperatureVrSoc;
> +	uint16_t TemperatureLiquid0;
> +	uint16_t TemperatureLiquid1;
> +	uint16_t TemperaturePlx;
> +	uint16_t Padding16;
> +	uint32_t AccCnt;
> +	uint8_t  ThrottlingPercentage[THROTTLER_COUNT];
> +
> +
> +	uint8_t  LinkDpmLevel;
> +	uint8_t  CurrFanPwm;
> +	uint16_t CurrFanSpeed;
> +
> +	//BACO metrics, PMFW-1721
> +	//metrics for D3hot entry/exit and driver ARM msgs
> +	uint8_t D3HotEntryCountPerMode[D3HOT_SEQUENCE_COUNT];
> +	uint8_t D3HotExitCountPerMode[D3HOT_SEQUENCE_COUNT];
> +	uint8_t ArmMsgReceivedCountPerMode[D3HOT_SEQUENCE_COUNT];
> +
> +	//PMFW-4362
> +	uint32_t EnergyAccumulator;
> +	uint16_t AverageVclk0Frequency;
> +	uint16_t AverageDclk0Frequency;
> +	uint16_t AverageVclk1Frequency;
> +	uint16_t AverageDclk1Frequency;
> +	uint16_t VcnUsagePercentage0;
> +	uint16_t VcnUsagePercentage1;
> +	uint8_t  PcieRate;
> +	uint8_t  PcieWidth;
> +	uint16_t AverageGfxclkFrequencyTarget;
> +
> +	uint8_t  ApuSTAPMSmartShiftLimit;
> +	uint8_t  AverageApuSocketPower;
> +	uint8_t  ApuSTAPMLimit;
> +	uint8_t  Padding8_2;
> +
> +} SmuMetrics_V4_t;
> +
>   typedef struct {
>     union {
>       SmuMetrics_t SmuMetrics;
>       SmuMetrics_V2_t SmuMetrics_V2;
>       SmuMetrics_V3_t SmuMetrics_V3;
> +	SmuMetrics_V4_t SmuMetrics_V4;

I see some extra indentation here <Thunderbird>.

>     };
>     uint32_t Spare[1];
>   
> diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c
> index 86ab276b6b0b..503439754f08 100644
> --- a/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c
> +++ b/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c
> @@ -585,6 +585,102 @@ static uint32_t sienna_cichlid_get_throttler_status_locked(struct smu_context *s
>   	return throttler_status;
>   }
>   
> +static int sienna_cichlid_get_power_limit(struct smu_context *smu,
> +					  uint32_t *current_power_limit,
> +					  uint32_t *default_power_limit,
> +					  uint32_t *max_power_limit)
> +{
> +	struct smu_11_0_7_powerplay_table *powerplay_table =
> +		(struct smu_11_0_7_powerplay_table *)smu->smu_table.power_play_table;
> +	uint32_t power_limit, od_percent;
> +	uint16_t *table_member;
> +
> +	GET_PPTABLE_MEMBER(SocketPowerLimitAc, &table_member);
> +
> +	if (smu_v11_0_get_current_power_limit(smu, &power_limit)) {
> +		power_limit =
> +			table_member[PPT_THROTTLER_PPT0];
> +	}
> +
> +	if (current_power_limit)
> +		*current_power_limit = power_limit;
> +	if (default_power_limit)
> +		*default_power_limit = power_limit;
> +
> +	if (max_power_limit) {
> +		if (smu->od_enabled) {
> +			od_percent =
> +				le32_to_cpu(powerplay_table->overdrive_table.max[
> +							SMU_11_0_7_ODSETTING_POWERPERCENTAGE]);
> +
> +			dev_dbg(smu->adev->dev, "ODSETTING_POWERPERCENTAGE: %d (default: %d)\n",
> +					od_percent, power_limit);
> +
> +			power_limit *= (100 + od_percent);
> +			power_limit /= 100;
> +		}
> +		*max_power_limit = power_limit;
> +	}
> +
> +	return 0;
> +}
> +
> +static void sienna_cichlid_get_smartshift_power_percentage(struct smu_context *smu,
> +					uint32_t *apu_percent,
> +					uint32_t *dgpu_percent)
> +{
> +	struct smu_table_context *smu_table = &smu->smu_table;
> +	SmuMetrics_V4_t *metrics_v4 =
> +		&(((SmuMetricsExternal_t *)(smu_table->metrics_table))->SmuMetrics_V4);
> +	uint16_t *table_member;
> +	uint16_t powerRatio = 0;
> +	uint16_t apu_power_limit = 0;
> +	uint16_t dgpu_power_limit = 0;
> +	uint32_t apu_boost = 0;
> +	uint32_t dgpu_boost = 0;
> +	uint32_t cur_power_limit;
> +
> +	sienna_cichlid_get_power_limit(smu, &cur_power_limit, NULL, NULL);
> +	if (metrics_v4->ApuSTAPMSmartShiftLimit != 0) {
> +		GET_PPTABLE_MEMBER(SocketPowerLimitAc, &table_member);

This is not required now.

> +		apu_power_limit = metrics_v4->ApuSTAPMLimit;
> +		dgpu_power_limit = cur_power_limit;
> +		powerRatio = (((apu_power_limit +
> +						  dgpu_power_limit) * 100) /
> +						  metrics_v4->ApuSTAPMSmartShiftLimit);
> +		if (powerRatio > 100) {
> +			apu_power_limit = (apu_power_limit * 100) /
> +									 powerRatio;
> +			dgpu_power_limit = (dgpu_power_limit * 100) /
> +									  powerRatio;
> +		}
> +		if (metrics_v4->AverageApuSocketPower > apu_power_limit &&
> +			 apu_power_limit != 0) {
> +			apu_boost = ((metrics_v4->AverageApuSocketPower -
> +							apu_power_limit) * 100) /
> +							apu_power_limit;
> +			if (apu_boost > 100)
> +				apu_boost = 100;
> +		}
> +
> +		if (metrics_v4->AverageSocketPower > dgpu_power_limit &&
> +			 dgpu_power_limit != 0) {
> +			dgpu_boost = ((metrics_v4->AverageSocketPower -
> +							 dgpu_power_limit) * 100) /
> +							 dgpu_power_limit;
> +			if (dgpu_boost > 100)
> +				dgpu_boost = 100;
> +		}
> +
> +		if (dgpu_boost >= apu_boost)
> +			apu_boost = 0;
> +		else
> +			dgpu_boost = 0;
> +	}
> +	*apu_percent = apu_boost;
> +	*dgpu_percent = dgpu_boost;
> +}
> +
>   static int sienna_cichlid_get_smu_metrics_data(struct smu_context *smu,
>   					       MetricsMember_t member,
>   					       uint32_t *value)
> @@ -600,6 +696,8 @@ static int sienna_cichlid_get_smu_metrics_data(struct smu_context *smu,
>   	bool use_metrics_v3 = false;
>   	uint16_t average_gfx_activity;
>   	int ret = 0;
> +	uint32_t apu_percent = 0;
> +	uint32_t dgpu_percent = 0;
>   
>   	if ((smu->adev->ip_versions[MP1_HWIP][0] == IP_VERSION(11, 0, 7)) &&
>   		(smu->smc_fw_version >= 0x3A4900))
> @@ -738,6 +836,15 @@ static int sienna_cichlid_get_smu_metrics_data(struct smu_context *smu,
>   		/* Only supported in 0x3A5300+, metrics_v3 requires 0x3A4900+ */
>   		*value = use_metrics_v3 ? metrics_v3->PublicSerialNumLower32 : 0;
>   		break;
> +	case METRICS_SS_APU_SHARE:
> +		sienna_cichlid_get_smartshift_power_percentage(smu, &apu_percent, &dgpu_percent);
> +		*value = apu_percent;
> +		break;
> +	case METRICS_SS_DGPU_SHARE:
> +		sienna_cichlid_get_smartshift_power_percentage(smu, &apu_percent, &dgpu_percent);
> +		*value = dgpu_percent;
> +		break;
> +
>   	default:
>   		*value = UINT_MAX;
>   		break;
> @@ -1728,6 +1835,7 @@ static int sienna_cichlid_read_sensor(struct smu_context *smu,
>   {
>   	int ret = 0;
>   	uint16_t *temp;
> +	struct amdgpu_device *adev = smu->adev;
>   
>   	if(!data || !size)
>   		return -EINVAL;
> @@ -1788,6 +1896,22 @@ static int sienna_cichlid_read_sensor(struct smu_context *smu,
>   		ret = smu_v11_0_get_gfx_vdd(smu, (uint32_t *)data);
>   		*size = 4;
>   		break;
> +	case AMDGPU_PP_SENSOR_SS_APU_SHARE:
> +		if (adev->ip_versions[MP1_HWIP][0] != IP_VERSION(11, 0, 7)) {
> +			ret = sienna_cichlid_get_smu_metrics_data(smu,
> +						METRICS_SS_APU_SHARE, (uint32_t *)data);
> +			*size = 4;
> +		} else
> +			ret = -EOPNOTSUPP;

Matching braces required here and in below else case.

With those changes:

	Reviewed-by: Lijo Lazar <lijo.lazar at amd.com>

Thanks,
Lijo

> +		break;
> +	case AMDGPU_PP_SENSOR_SS_DGPU_SHARE:
> +		if (adev->ip_versions[MP1_HWIP][0] != IP_VERSION(11, 0, 7)) {
> +			ret = sienna_cichlid_get_smu_metrics_data(smu,
> +						METRICS_SS_DGPU_SHARE, (uint32_t *)data);
> +			*size = 4;
> +		} else
> +			ret = -EOPNOTSUPP;
> +		break;
>   	default:
>   		ret = -EOPNOTSUPP;
>   		break;
> @@ -1907,43 +2031,6 @@ static int sienna_cichlid_display_disable_memory_clock_switch(struct smu_context
>   	return ret;
>   }
>   
> -static int sienna_cichlid_get_power_limit(struct smu_context *smu,
> -					  uint32_t *current_power_limit,
> -					  uint32_t *default_power_limit,
> -					  uint32_t *max_power_limit)
> -{
> -	struct smu_11_0_7_powerplay_table *powerplay_table =
> -		(struct smu_11_0_7_powerplay_table *)smu->smu_table.power_play_table;
> -	uint32_t power_limit, od_percent;
> -	uint16_t *table_member;
> -
> -	GET_PPTABLE_MEMBER(SocketPowerLimitAc, &table_member);
> -
> -	if (smu_v11_0_get_current_power_limit(smu, &power_limit)) {
> -		power_limit =
> -			table_member[PPT_THROTTLER_PPT0];
> -	}
> -
> -	if (current_power_limit)
> -		*current_power_limit = power_limit;
> -	if (default_power_limit)
> -		*default_power_limit = power_limit;
> -
> -	if (max_power_limit) {
> -		if (smu->od_enabled) {
> -			od_percent = le32_to_cpu(powerplay_table->overdrive_table.max[SMU_11_0_7_ODSETTING_POWERPERCENTAGE]);
> -
> -			dev_dbg(smu->adev->dev, "ODSETTING_POWERPERCENTAGE: %d (default: %d)\n", od_percent, power_limit);
> -
> -			power_limit *= (100 + od_percent);
> -			power_limit /= 100;
> -		}
> -		*max_power_limit = power_limit;
> -	}
> -
> -	return 0;
> -}
> -
>   static int sienna_cichlid_update_pcie_parameters(struct smu_context *smu,
>   					 uint32_t pcie_gen_cap,
>   					 uint32_t pcie_width_cap)
> 


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