diff options
author | Axel Davy <[email protected]> | 2014-06-08 19:42:15 -0400 |
---|---|---|
committer | Dave Airlie <[email protected]> | 2014-07-01 13:07:30 +1000 |
commit | 7ab925a6aafca106e7682dfc21e7c9351380809e (patch) | |
tree | 01e2e62886c3612222af0bf53a546f5748537922 /include/VG/vgext.h | |
parent | da3a47d6824b63621a7d865112558a6e8026688b (diff) |
loader: add gpu selection code via DRI_PRIME.
v2: Fix the leak of device_name
v3: Rebased
It enables to use the DRI_PRIME env var to specify
which gpu to use.
Two syntax are supported:
If DRI_PRIME is 1 it means: take any other gpu than the default one.
If DRI_PRIME is the ID_PATH_TAG of a device: choose this device if
possible.
The ID_PATH_TAG is a tag filled by udev.
You can check it with 'udevadm info' on the device node.
For example it can be "pci-0000_01_00_0".
Render-nodes need to be enabled to choose another gpu,
and they need to have the ID_PATH_TAG advertised.
It is possible for not very recent udev that the tag
is not advertised for render-nodes, then
ones need to add a file containing:
SUBSYSTEM=="drm", IMPORT{builtin}="path_id"
in /etc/udev/rules.d/
Signed-off-by: Axel Davy <[email protected]>
Reviewed-by: Emil Velikov <[email protected]>
Signed-off-by: Dave Airlie <[email protected]>
Diffstat (limited to 'include/VG/vgext.h')
0 files changed, 0 insertions, 0 deletions