drm/amdgpu/powerplay: add Renoir VCN power management

Thus VCN can be powered up for normal operations
Signed-off-by: Leo Liu <leo.liu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Aaron Liu <aaron.liu@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/powerplay/amdgpu_smu.c

@@ -1268,8 +1268,10 @@ static int smu_hw_init(void *handle)
 		return ret;
 	}
 
-	if (adev->asic_type == CHIP_RENOIR)
+	if (adev->asic_type == CHIP_RENOIR) {
 		smu_powergate_sdma(&adev->smu, false);
+		smu_powergate_vcn(&adev->smu, false);
+	}
 
 	if (!smu->pm_enabled)
 		return 0;
@@ -1322,8 +1324,10 @@ static int smu_hw_fini(void *handle)
 	struct smu_table_context *table_context = &smu->smu_table;
 	int ret = 0;
 
-	if (adev->asic_type == CHIP_RENOIR)
+	if (adev->asic_type == CHIP_RENOIR) {
 		smu_powergate_sdma(&adev->smu, true);
+		smu_powergate_vcn(&adev->smu, true);
+	}
 
 	kfree(table_context->driver_pptable);
 	table_context->driver_pptable = NULL;

drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h

@@ -474,6 +474,7 @@ struct smu_funcs
 	int (*populate_smc_pptable)(struct smu_context *smu);
 	int (*check_fw_version)(struct smu_context *smu);
 	int (*powergate_sdma)(struct smu_context *smu, bool gate);
+	int (*powergate_vcn)(struct smu_context *smu, bool gate);
 	int (*write_pptable)(struct smu_context *smu);
 	int (*set_min_dcef_deep_sleep)(struct smu_context *smu);
 	int (*set_tool_table_location)(struct smu_context *smu);
@@ -552,6 +553,8 @@ struct smu_funcs
 	((smu)->funcs->setup_pptable ? (smu)->funcs->setup_pptable((smu)) : 0)
 #define smu_powergate_sdma(smu, gate) \
 	((smu)->funcs->powergate_sdma ? (smu)->funcs->powergate_sdma((smu), (gate)) : 0)
+#define smu_powergate_vcn(smu, gate) \
+	((smu)->funcs->powergate_vcn ? (smu)->funcs->powergate_vcn((smu), (gate)) : 0)
 #define smu_get_vbios_bootup_values(smu) \
 	((smu)->funcs->get_vbios_bootup_values ? (smu)->funcs->get_vbios_bootup_values((smu)) : 0)
 #define smu_get_clk_info_from_vbios(smu) \

drivers/gpu/drm/amd/powerplay/smu_v12_0.c

@@ -172,10 +172,22 @@ static int smu_v12_0_powergate_sdma(struct smu_context *smu, bool gate)
 		return smu_send_smc_msg(smu, SMU_MSG_PowerUpSdma);
 }
 
+static int smu_v12_0_powergate_vcn(struct smu_context *smu, bool gate)
+{
+	if (!(smu->adev->flags & AMD_IS_APU))
+		return 0;
+
+	if (gate)
+		return smu_send_smc_msg(smu, SMU_MSG_PowerDownVcn);
+	else
+		return smu_send_smc_msg(smu, SMU_MSG_PowerUpVcn);
+}
+
 static const struct smu_funcs smu_v12_0_funcs = {
 	.check_fw_status = smu_v12_0_check_fw_status,
 	.check_fw_version = smu_v12_0_check_fw_version,
 	.powergate_sdma = smu_v12_0_powergate_sdma,
+	.powergate_vcn = smu_v12_0_powergate_vcn,
 	.send_smc_msg = smu_v12_0_send_msg,
 	.send_smc_msg_with_param = smu_v12_0_send_msg_with_param,
 	.read_smc_arg = smu_v12_0_read_arg,