e13273d4a4
For virtual display feature, initialize dce_virtual_crtc_irq_funcs, dce_virtual_pageflip_irq_funcs. As it has no dce engine, so the pageflip interrupt won't be generated, and the vsync interrupt will be generated by smu's periodic timer or software timer which will be implemented later. v2: agd: rebase on upstream Signed-off-by: Emily Deng <Emily.Deng@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>