[Intel-gfx] [PATCH 2/2] drm/i915: Use RCS flips on Ivybridge+

[Daniel Vetter]

On Wed, Sep 4, 2013 at 11:28 AM, Lee, Chon Ming <chon.ming.lee at intel.com> wrote:
> This patch causes VLV hang, look like ring buffer lockup.
>
> This is the message.
> [drm] stuck on render ring
>
> I haven't look at the bspec for the different between VLV and Ivybridge on this
> yet.  Just see anyone have any clue why this might fail in VLV.

I guess there's no DERRMR register on vlv? If that's the case I think
we just need to disable rcs flips on vlv.
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch