[Intel-gfx] [PATCH] drm/i915: Use Graphics Base of Stolen Memory on all gen3+

[Chris Wilson]

On Thu, Jul 04, 2013 at 01:26:03AM +0200, Daniel Vetter wrote:
> On Thu, Jul 4, 2013 at 1:23 AM, Chris Wilson <chris at chris-wilson.co.uk> wrote:
> > So I made the mistake of missing that the desktop and mobile chipsets
> > have different layouts in their PCI configurations, and we were
> > incorrectly setting the wrong physical address for stolen memory on
> > mobile chipsets.
> >
> > Since all gen3+ are actually consistent in the location of the GBSM
> > register in the PCI configuration space on device 2 (the GPU), use it.
> >
> > Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
> > Cc: Daniel Vetter <daniel.vetter at ffwll.ch>
> > Cc: stable at vger.kernel.org
> 
> Nope, not cc: stable since the last time around the overlay blew up in
> flames ...

You can comment out gen3, but the dangerous part is that we are
overwriting random physical addresses.
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre