drm/amdgpu: implement ENABLED_SMC_FEATURES_MASK sensor for vega10

So we can query what features are enabled for debugging.
Reviewed-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c

@@ -3714,6 +3714,11 @@ static int vega10_read_sensor(struct pp_hwmgr *hwmgr, int idx,
 			SMUSVI0_PLANE0_CURRENTVID__CURRENT_SVI0_PLANE0_VID__SHIFT;
 		*((uint32_t *)value) = (uint32_t)convert_to_vddc((uint8_t)val_vid);
 		return 0;
+	case AMDGPU_PP_SENSOR_ENABLED_SMC_FEATURES_MASK:
+		ret = vega10_get_enabled_smc_features(hwmgr, (uint64_t *)value);
+		if (!ret)
+			*size = 8;
+		break;
 	default:
 		ret = -EINVAL;
 		break;

drivers/gpu/drm/amd/powerplay/smumgr/vega10_smumgr.c

@@ -98,8 +98,8 @@ int vega10_enable_smc_features(struct pp_hwmgr *hwmgr,
 			msg, feature_mask);
 }
 
-static int vega10_get_smc_features(struct pp_hwmgr *hwmgr,
-		uint32_t *features_enabled)
+int vega10_get_enabled_smc_features(struct pp_hwmgr *hwmgr,
+			    uint64_t *features_enabled)
 {
 	if (features_enabled == NULL)
 		return -EINVAL;
@@ -112,9 +112,9 @@ static int vega10_get_smc_features(struct pp_hwmgr *hwmgr,
 
 static bool vega10_is_dpm_running(struct pp_hwmgr *hwmgr)
 {
-	uint32_t features_enabled = 0;
+	uint64_t features_enabled = 0;
 
-	vega10_get_smc_features(hwmgr, &features_enabled);
+	vega10_get_enabled_smc_features(hwmgr, &features_enabled);
 
 	if (features_enabled & SMC_DPM_FEATURES)
 		return true;

drivers/gpu/drm/amd/powerplay/smumgr/vega10_smumgr.h

@@ -44,6 +44,8 @@ struct vega10_smumgr {
 
 int vega10_enable_smc_features(struct pp_hwmgr *hwmgr,
 			       bool enable, uint32_t feature_mask);
+int vega10_get_enabled_smc_features(struct pp_hwmgr *hwmgr,
+				    uint64_t *features_enabled);
 
 #endif