drm/amd/pp: Add querying current gfx voltage for CI/VI

Store the voltage regulator configuration,
so we can properly query the voltage.
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c

@@ -3317,7 +3317,7 @@ static int smu7_read_sensor(struct pp_hwmgr *hwmgr, int idx,
 			    void *value, int *size)
 {
 	uint32_t sclk, mclk, activity_percent;
-	uint32_t offset;
+	uint32_t offset, val_vid;
 	struct smu7_hwmgr *data = (struct smu7_hwmgr *)(hwmgr->backend);
 
 	/* size must be at least 4 bytes for all sensors */
@@ -3365,6 +3365,16 @@ static int smu7_read_sensor(struct pp_hwmgr *hwmgr, int idx,
 			return -EINVAL;
 		*size = sizeof(struct pp_gpu_power);
 		return smu7_get_gpu_power(hwmgr, (struct pp_gpu_power *)value);
+	case AMDGPU_PP_SENSOR_VDDGFX:
+		if ((data->vr_config & 0xff) == 0x2)
+			val_vid = PHM_READ_INDIRECT_FIELD(hwmgr->device,
+					CGS_IND_REG__SMC, PWR_SVI2_STATUS, PLANE2_VID);
+		else
+			val_vid = PHM_READ_INDIRECT_FIELD(hwmgr->device,
+					CGS_IND_REG__SMC, PWR_SVI2_STATUS, PLANE1_VID);
+
+		*((uint32_t *)value) = (uint32_t)convert_to_vddc(val_vid);
+		return 0;
 	default:
 		return -EINVAL;
 	}

drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.h

@@ -305,6 +305,7 @@ struct smu7_hwmgr {
 	uint32_t                              frame_time_x2;
 	uint16_t                              mem_latency_high;
 	uint16_t                              mem_latency_low;
+	uint32_t                              vr_config;
 };
 
 /* To convert to Q8.8 format for firmware */

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

@@ -2141,7 +2141,7 @@ static int fiji_init_smc_table(struct pp_hwmgr *hwmgr)
 	result = fiji_populate_vr_config(hwmgr, table);
 	PP_ASSERT_WITH_CODE(0 == result,
 			"Failed to populate VRConfig setting!", return result);
-
+	data->vr_config = table->VRConfig;
 	table->ThermGpio = 17;
 	table->SclkStepSize = 0x4000;
 

drivers/gpu/drm/amd/powerplay/smumgr/polaris10_smumgr.c

@@ -1991,7 +1991,7 @@ static int polaris10_init_smc_table(struct pp_hwmgr *hwmgr)
 	result = polaris10_populate_vr_config(hwmgr, table);
 	PP_ASSERT_WITH_CODE(0 == result,
 			"Failed to populate VRConfig setting!", return result);
-
+	hw_data->vr_config = table->VRConfig;
 	table->ThermGpio = 17;
 	table->SclkStepSize = 0x4000;
 

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

@@ -2434,7 +2434,7 @@ static int tonga_init_smc_table(struct pp_hwmgr *hwmgr)
 	result = tonga_populate_vr_config(hwmgr, table);
 	PP_ASSERT_WITH_CODE(!result,
 		"Failed to populate VRConfig setting !", return result);
-
+	data->vr_config = table->VRConfig;
 	table->ThermGpio  = 17;
 	table->SclkStepSize = 0x4000;
 
@@ -2501,7 +2501,6 @@ static int tonga_init_smc_table(struct pp_hwmgr *hwmgr)
 
 	for (i = 0; i < SMU72_MAX_ENTRIES_SMIO; i++)
 		table->Smio[i] = PP_HOST_TO_SMC_UL(table->Smio[i]);
-
 	CONVERT_FROM_HOST_TO_SMC_UL(table->SystemFlags);
 	CONVERT_FROM_HOST_TO_SMC_UL(table->VRConfig);
 	CONVERT_FROM_HOST_TO_SMC_UL(table->SmioMask1);