Right now, when there is more than one vide card on the machine, we're
adopting a pessimistic approach and setting all cards to decode VGA legacy
address.
Some cards may want to skip the arbitration and the only way to do so is
through pci_device_vgaarb_decodes. Therefore, send the desired kind of
resource instead force the worst case.
Note that xf86VGAarbiterDeviceDecodes is not being used so far by any
open-source driver. Even so, API break.
Signed-off-by: Tiago Vignatti <tiago.vignatti@nokia.com>
Reviewed-by: Mark Kettenis <kettenis@openbsd.org>
This adds support for using the libpciaccess interface for
vga arbitration support on top of a kernel which supports it.
Currently patches are queued for kernel 2.6.32 in jbarnes
pci tree, and shipping in Fedora kernel.
Co-authors:
Tiago Vignatti <tiago.vignatti@nokia.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Tiago Vignatti
Dave Airlie