drm/amd/pm: add inst to set_powergating_by_smu

Add an instance parameter to set_powergating_by_smu() function, and
re-write all amd_pm functions accordingly. Then use the instance to
call smu_dpm_set_vcn_enable().

v2: remove duplicated functions.

remove for-loop in smu_dpm_set_power_gate(), and temporarily move it to
to amdgpu_dpm_set_powergating_by_smu(), in order to keep the exact same
logic as before, until further separation in next patch.

v3: add instance number in error message.

Signed-off-by: Boyuan Zhang <[e-mail]>
Acked-by: Christian König <[e-mail]>
Reviewed-by: Alex Deucher <[e-mail]>
Signed-off-by: Alex Deucher <[e-mail]>

drivers/gpu/drm/amd/include/kgd_pp_interface.h

···
 	int (*load_firmware)(void *handle);
 	int (*wait_for_fw_loading_complete)(void *handle);
 	int (*set_powergating_by_smu)(void *handle,
-				uint32_t block_type, bool gate);
+				uint32_t block_type,
+				bool gate,
+				int inst);
 	int (*set_clockgating_by_smu)(void *handle, uint32_t msg_id);
 	int (*set_power_limit)(void *handle, uint32_t n);
 	int (*get_power_limit)(void *handle, uint32_t *limit,

drivers/gpu/drm/amd/pm/amdgpu_dpm.c

···
 	case AMD_IP_BLOCK_TYPE_UVD:
 	case AMD_IP_BLOCK_TYPE_VCE:
 	case AMD_IP_BLOCK_TYPE_GFX:
-	case AMD_IP_BLOCK_TYPE_VCN:
 	case AMD_IP_BLOCK_TYPE_SDMA:
 	case AMD_IP_BLOCK_TYPE_JPEG:
 	case AMD_IP_BLOCK_TYPE_GMC:
···
 	case AMD_IP_BLOCK_TYPE_VPE:
 		if (pp_funcs && pp_funcs->set_powergating_by_smu)
 			ret = (pp_funcs->set_powergating_by_smu(
-				(adev)->powerplay.pp_handle, block_type, gate));
+				(adev)->powerplay.pp_handle, block_type, gate, 0));
+		break;
+	case AMD_IP_BLOCK_TYPE_VCN:
+		if (pp_funcs && pp_funcs->set_powergating_by_smu) {
+			for (int i = 0; i < adev->vcn.num_vcn_inst; i++)
+				ret = (pp_funcs->set_powergating_by_smu(
+					(adev)->powerplay.pp_handle, block_type, gate, i));
+		}
 		break;
 	default:
 		break;

drivers/gpu/drm/amd/pm/legacy-dpm/kv_dpm.c

···
 }
 
 static int kv_set_powergating_by_smu(void *handle,
-				uint32_t block_type, bool gate)
+				uint32_t block_type,
+				bool gate,
+				int inst)
 {
 	switch (block_type) {
 	case AMD_IP_BLOCK_TYPE_UVD:

drivers/gpu/drm/amd/pm/powerplay/amd_powerplay.c

···
 }
 
 static int pp_set_powergating_by_smu(void *handle,
-				uint32_t block_type, bool gate)
+				uint32_t block_type,
+				bool gate,
+				int inst)
 {
 	int ret = 0;
 

drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c

···
  */
 static int smu_dpm_set_power_gate(void *handle,
 				  uint32_t block_type,
-				  bool gate)
+				  bool gate,
+				  int inst)
 {
 	struct smu_context *smu = handle;
-	struct amdgpu_device *adev = smu->adev;
-	int i, ret = 0;
+	int ret = 0;
 
 	if (!smu->pm_enabled || !smu->adev->pm.dpm_enabled) {
 		dev_WARN(smu->adev->dev,
···
 	 */
 	case AMD_IP_BLOCK_TYPE_UVD:
 	case AMD_IP_BLOCK_TYPE_VCN:
-		for (i = 0; i < adev->vcn.num_vcn_inst; i++) {
-			ret = smu_dpm_set_vcn_enable(smu, !gate, i);
-			if (ret)
-				dev_err(smu->adev->dev, "Failed to power %s VCN instance %d!\n",
-					gate ? "gate" : "ungate", i);
-		}
+		ret = smu_dpm_set_vcn_enable(smu, !gate, inst);
+		if (ret)
+			dev_err(smu->adev->dev, "Failed to power %s VCN instance %d!\n",
+				gate ? "gate" : "ungate", inst);
 		break;
 	case AMD_IP_BLOCK_TYPE_GFX:
 		ret = smu_gfx_off_control(smu, gate);