xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

drm: Fix support for PCI domains

Browse Source 
(For some reason I thought that went in ages ago ...)

This fixes support for PCI domains in what should hopefully be a backward
compatible way along with a change to libdrm.

When the interface version is set to 1.4, we assume userspace understands
domains and the world is at peace. We thus pass proper domain numbers
instead of 0 to userspace.

The newer libdrm will then try 1.4 first, and fallback to 1.1, along with
ignoring domains in the later case (well, except on alpha of course)

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Benjamin Herrenschmidt
2010-08-06 13:55:10 +10:00
committed by Dave Airlie
parent c3b6ef8633
commit c17c2f892e
3 changed files with 18 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/gpu/drm/drm_ioctl.c
View File

@@ -392,6 +392,7 @@ int drm_setversion(struct drm_device *dev, void *data, struct drm_file *file_pri
if (sv->drm_di_minor >= 1) {
/*
* Version 1.1 includes tying of DRM to specific device
* Version 1.4 has proper PCI domain support
*/
retcode = drm_set_busid(dev, file_priv);
if (retcode)