[Intel-gfx] [PATCH 04/11] drm/i915: check for multiple write domains in pin_and_relocate

[Chris Wilson]

On Fri, 15 Jan 2010 13:24:11 +0100, Daniel Vetter <daniel.vetter at ffwll.ch> wrote:
> Only one write domain is allowed, don't let userspace screw us over.

Userspace is currently allowed to submit MI_FLUSH into a batch to manage
the domains, this breaks that, and I've had similar patch vetoed in the
past for that reason (and now drivers do attempt to be clever...)
-ickle

-- 
Chris Wilson, Intel Open Source Technology Centre