[Intel-gfx] [PATCH 1/2] drm/i915: skip the first 4k of stolen memory on everything >= gen8

[Chris Wilson]

On Wed, Dec 14, 2016 at 12:55:37PM -0200, Paulo Zanoni wrote:
> BSpec got updated and this workaround is now listed as standard
> required programming for all subsequent projects. This is confirmed to
> fix Skylake screen flickering issues (probably caused by the fact that
> we initialized a ring in the first page of stolen, but I didn't 100%
> confirm this theory).
> 
> v2: this is the patch that fixes the screen flickering, document it.
> 
> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=94605
> Cc: stable at vger.kernel.org
> Tested-by: Dominik Klementowski <dominik232 at gmail.com>
> Signed-off-by: Paulo Zanoni <paulo.r.zanoni at intel.com>
Acked-by: Chris Wilson <chris at chris-wilson.co.uk>
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre