[Intel-gfx] [PATCH] drm/i915: Disable FBC if primary plane is rotated on Haswell

[Chris Wilson]

On Thu, Nov 27, 2014 at 02:40:34PM -0200, Paulo Zanoni wrote:
> 2014-11-27 14:18 GMT-02:00 Chris Wilson <chris at chris-wilson.co.uk>:
> > Quoting the workaround database:
> >
> > "FBC can show stale data when using 180 degree hardware rotation of the
> > primary display plane.
> >
> > WA: Do not enable FBC when using hardware 180 degree rotation on the
> > primary display plane."
> >
> > References: https://bugs.freedesktop.org/show_bug.cgi?id=86548
> 
> As far as I can see, that shouldn't affect production machines.

Hmm, you could be right. The switch between naming schemes for different
w/a sources is confusing. If when we finally get FBC enabled everywhere,
we will know one way or another.
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre