dri2/prime: allocate prime id at screen allocation time

Add a static mask of prime id and allocate them at screen time,
if the driver supports the prime interfaces and is a gpu screen.

This is instead of them changing due to user controlled randr commands,
as suggested by Keith.

Reviewed-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

0 files changed, 0 insertions, 0 deletions