Author: dumbbell
Date: Wed Dec 4 19:04:56 2013
New Revision: 258930
URL: http://svnweb.freebsd.org/changeset/base/258930
Log:
drm: Read PCIER_LINK_CAP/PCIER_LINK_CAP2 from the PCI bridge
Before this fix, capabilities were read from vgapci and were incorrect.
Modified:
head/sys/dev/drm2/drm_pci.c
Modified: head/sys/dev/drm2/drm_pci.c
==============================================================================
--- head/sys/dev/drm2/drm_pci.c Wed Dec 4 18:25:04 2013 (r258929)
+++ head/sys/dev/drm2/drm_pci.c Wed Dec 4 19:04:56 2013 (r258930)
@@ -134,7 +134,11 @@ int drm_pcie_get_speed_cap_mask(struct d
if (!drm_device_is_pcie(dev))
return -EINVAL;
- root = device_get_parent(dev->device);
+ root =
+ device_get_parent( /* pcib */
+ device_get_parent( /* `-- pci */
+ device_get_parent( /* `-- vgapci */
+ dev->device))); /* `-- drmn */
pos = 0;
pci_find_cap(root, PCIY_EXPRESS, &pos);
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