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: Sathishkumar S <sathishkumar.sundararaju@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu12/renoir_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu12/renoir_ppt.c
index ccfcfcf..9a9c24a 100644 (file)
--- a/drivers/gpu/drm/amd/pm/swsmu/smu12/renoir_ppt.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu12/renoir_ppt.c
@@ -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;