[Intel-gfx] [PATCH] drm/i915: Assert that the request->tail is always qword aligned

[Chris Wilson]

On Mon, Feb 20, 2017 at 02:45:30PM +0100, Michał Winiarski wrote:
> On Fri, Feb 17, 2017 at 04:38:33PM +0000, Chris Wilson wrote:
> > The hardware requires that the tail pointer only advance in qword units,
> > so assert that the value we write is aligned to qwords, and similarly
> > enforce this restriction onto the request->tail.
> > 
> > Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
> > Cc: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
> > Cc: Mika Kuoppala <mika.kuoppala at linux.intel.com>
> 
> LGTM.
> Quick grep confirms that those are indeed all the relevant spots where we're
> updating req->tail.
> 
> Reviewed-by: Michał Winiarski <michal.winiarski at intel.com>

Ta, pushed just to exercise igt.
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre