drm/amdgpu: enable virtual display for navi12

Virtual display is a sw display interface for
bring up and virtualization or for cards without
display hardware.
Signed-off-by: Xiaojie Yuan <xiaojie.yuan@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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

@@ -460,6 +460,7 @@ static int dce_virtual_hw_init(void *handle)
 	case CHIP_ARCTURUS:
 	case CHIP_NAVI10:
 	case CHIP_NAVI14:
+	case CHIP_NAVI12:
 		break;
 	default:
 		DRM_ERROR("Virtual display unsupported ASIC type: 0x%X\n", adev->asic_type);

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

@@ -426,6 +426,8 @@ int nv_set_ip_blocks(struct amdgpu_device *adev)
 		amdgpu_device_ip_block_add(adev, &nv_common_ip_block);
 		amdgpu_device_ip_block_add(adev, &gmc_v10_0_ip_block);
 		amdgpu_device_ip_block_add(adev, &navi10_ih_ip_block);
+		if (adev->enable_virtual_display || amdgpu_sriov_vf(adev))
+			amdgpu_device_ip_block_add(adev, &dce_virtual_ip_block);
 		amdgpu_device_ip_block_add(adev, &gfx_v10_0_ip_block);
 		amdgpu_device_ip_block_add(adev, &sdma_v5_0_ip_block);
 		break;