tree 0aa92fdfa778a05353cbe82d4635597ba9e87114
parent 3885c6bbd0c6c9cc3c8e6d4f723abc87c593b07a
author Chris Wilson <chris@chris-wilson.co.uk> 1295787804 +0000
committer Chris Wilson <chris@chris-wilson.co.uk> 1295893591 +0000

drm/i915: Handle the no-interrupts case for UMS by polling

If the driver calls into the kernel to wait for a breadcrumb to pass,
but hasn't enabled interrupts, fallback to polling the breadcrumb value.

Reported-by: Chris Clayton <chris2553@googlemail.com>
Tested-by: Chris Clayton <chris2553@googlemail.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>