[Intel-gfx] [PATCH] drm/i915/bdw: Don't allow the FBC base to be 0

[Damien Lespiau]

On Thu, May 15, 2014 at 05:05:05PM +0300, Ville Syrjälä wrote:
> > I must be missing something important. The FBC buffer is the only one
> > requiring a non-zero offset from the base of stolen memory.
> 
> Nothing important can be placed there since the CS apparently writes
> there without anyone explicitly telling it to do so. That's what I
> gathered from the hsd anyway.

FWIW, that's what Art said in person as well a couple of weeks back. So,
indeed, we need to reserve the first page of stolen on BDW.

-- 
Damien