Commit ac3fbe3b authored by Sathishkumar S's avatar Sathishkumar S Committed by Alex Deucher
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drm/amd/pm: support ss metrics read on yellow_carp 



add support to read smart shift apu and dgpu power share
on yellow_carp

Signed-off-by: default avatarSathishkumar S <sathishkumar.sundararaju@amd.com>
Reviewed-by: default avatarLijo Lazar <lijo.lazar@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 7b32dd0b

drivers/gpu/drm/amd/pm/swsmu/smu13/yellow_carp_ppt.c

+34 −0
Original line number Diff line number Diff line
@@ -356,6 +356,28 @@ static int yellow_carp_get_smu_metrics_data(struct smu_context *smu, 
	case METRICS_VOLTAGE_VDDSOC:

		*value = metrics->Voltage[1];

		break;

	case METRICS_SS_APU_SHARE:

		/* return the percentage of APU power with respect to APU's power limit.

		 * percentage is reported, this isn't boost value. Smartshift power

		 * boost/shift is only when the percentage is more than 100.

		 */

		if (metrics->StapmOpnLimit > 0)

			*value =  (metrics->ApuPower * 100) / metrics->StapmOpnLimit;

		else

			*value = 0;

		break;

	case METRICS_SS_DGPU_SHARE:

		/* return the percentage of dGPU power with respect to dGPU's power limit.

		 * percentage is reported, this isn't boost value. Smartshift power

		 * boost/shift is only when the percentage is more than 100.

		 */

		if ((metrics->dGpuPower > 0) &&

		    (metrics->StapmCurrentLimit > metrics->StapmOpnLimit))

			*value = (metrics->dGpuPower * 100) /

				  (metrics->StapmCurrentLimit - metrics->StapmOpnLimit);

		else

			*value = 0;

		break;

	default:

		*value = UINT_MAX;

		break;
@@ -427,6 +449,18 @@ static int yellow_carp_read_sensor(struct smu_context *smu, 
								(uint32_t *)data);

		*size = 4;

		break;

	case AMDGPU_PP_SENSOR_SS_APU_SHARE:

		ret = yellow_carp_get_smu_metrics_data(smu,

						       METRICS_SS_APU_SHARE,

						       (uint32_t *)data);

		*size = 4;

		break;

	case AMDGPU_PP_SENSOR_SS_DGPU_SHARE:

		ret = yellow_carp_get_smu_metrics_data(smu,

						       METRICS_SS_DGPU_SHARE,

						       (uint32_t *)data);

		*size = 4;

		break;

	default:

		ret = -EOPNOTSUPP;

		break;