drm/amdgpu: add gmc ip block for dimgrey_cavefish

Enable gmc block for dimgrey_cavefish, same as sienna_cichlid.
Signed-off-by: Tao Zhou <tao.zhou1@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Jiansong Chen <Jiansong.Chen@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c

@@ -648,6 +648,7 @@ static void gmc_v10_0_set_gfxhub_funcs(struct amdgpu_device *adev)
 	case CHIP_SIENNA_CICHLID:
 	case CHIP_NAVY_FLOUNDER:
 	case CHIP_VANGOGH:
+	case CHIP_DIMGREY_CAVEFISH:
 		adev->gfxhub.funcs = &gfxhub_v2_1_funcs;
 		break;
 	default:

drivers/gpu/drm/amd/amdgpu/nv.c

@@ -628,6 +628,7 @@ int nv_set_ip_blocks(struct amdgpu_device *adev)
 		break;
 	case CHIP_DIMGREY_CAVEFISH:
 		amdgpu_device_ip_block_add(adev, &nv_common_ip_block);
+		amdgpu_device_ip_block_add(adev, &gmc_v10_0_ip_block);
 		break;
 	default:
 		return -EINVAL;