Commit 7b32dd0b authored by Sathishkumar S's avatar Sathishkumar S Committed by Alex Deucher
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drm/amd/pm: support ss metrics read on renoir 



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

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 3be4dca1

drivers/gpu/drm/amd/pm/swsmu/smu12/renoir_ppt.c

+34 −0
Original line number Diff line number Diff line
@@ -1180,6 +1180,28 @@ static int renoir_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->StapmOriginalLimit > 0)

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

		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->StapmOriginalLimit))

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

				  (metrics->StapmCurrentLimit - metrics->StapmOriginalLimit);

		else

			*value = 0;

		break;

	default:

		*value = UINT_MAX;

		break;
@@ -1251,6 +1273,18 @@ static int renoir_read_sensor(struct smu_context *smu, 
						  (uint32_t *)data);

		*size = 4;

		break;

	case AMDGPU_PP_SENSOR_SS_APU_SHARE:

		ret = renoir_get_smu_metrics_data(smu,

						  METRICS_SS_APU_SHARE,

						  (uint32_t *)data);

		*size = 4;

		break;

	case AMDGPU_PP_SENSOR_SS_DGPU_SHARE:

		ret = renoir_get_smu_metrics_data(smu,

						  METRICS_SS_DGPU_SHARE,

						  (uint32_t *)data);

		*size = 4;

		break;

	default:

		ret = -EOPNOTSUPP;

		break;