Currently, calling drmGetBusid from libdrm on a hibmc VGA card returns a string like "0007:a1:00.0".
The busid reported by most cards begins with "pci:". For example, on an amd64 system, a VGA card reported "pci:0000:00:02.0". The missing "pci:" prefix confuses Xorg and leads to crashes and other misbehaviour.[0] Use the standard helper from the drm core to set the busid to include the "pci:" prefix. This is done by many other drivers. With this patch, Xorg can be run successfully. [0]: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1691991 Cc: Xinliang Liu <z.liuxinli...@hisilicon.com> Cc: Rongrong Zou <zourongr...@gmail.com> Signed-off-by: Daniel Axtens <d...@axtens.net> --- drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c index 2ffdbf9801bd..9663a633897a 100644 --- a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c +++ b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c @@ -69,6 +69,7 @@ static struct drm_driver hibmc_driver = { .dumb_map_offset = hibmc_dumb_mmap_offset, .dumb_destroy = drm_gem_dumb_destroy, .irq_handler = hibmc_drm_interrupt, + .set_busid = drm_pci_set_busid, }; static int __maybe_unused hibmc_pm_suspend(struct device *dev) -- 2.11.0 _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel
