[Intel-gfx] [PATCH] drm/i915: Call intel_fbc_pre_update() after pinning the new pageflip

[chris at chris-wilson.co.uk]

On Wed, Aug 17, 2016 at 08:00:09PM +0000, Zanoni, Paulo R wrote:
> Em Qua, 2016-08-17 às 20:49 +0100, Chris Wilson escreveu:
> > On Wed, Aug 17, 2016 at 04:41:44PM -0300, Paulo Zanoni wrote:
> > > 
> > > From: Chris Wilson <chris at chris-wilson.co.uk>
> > > 
> > > intel_fbc_pre_update() depends upon the new state being already
> > > pinned
> > > in place in the Global GTT (primarily for both fencing which wants
> > > both
> > > an offset and a fence register, if assigned). This requires the
> > > call to
> > > intel_fbc_pre_update() be after intel_pin_and_fence_fb() - but
> > > commit
> > > e8216e502aca ("drm/i915/fbc: call intel_fbc_pre_update earlier
> > > during
> > > page flips") moved the code way too much up in its attempt to call
> > > it
> > > before the page flip.
> > > 
> > > v2 (from Paulo):
> > >  - Point the original bad commit.
> > >  - Add a comment to maybe prevent further regressions.
> > > 
> > > Fixes: e8216e502aca ("drm/i915/fbc: call intel_fbc_pre_update
> > > earlier...")
> > > Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
> > > Signed-off-by: Paulo Zanoni <paulo.r.zanoni at intel.com>
> > > Cc: Daniel Vetter <daniel.vetter at intel.com>
> > > Cc: Ville Syrjälä <ville.syrjala at linux.intel.com>
> > > Cc: Maarten Lankhorst <maarten.lankhorst at linux.intel.com>
> > > Cc: Patrik Jakobsson <patrik.jakobsson at linux.intel.com>
> > > Cc: drm-intel-fixes at lists.freedesktop.org
> > 
> > If you had just claimed this as your own, I could have reviewed it ;)
> 
> I don't want to steal your patch, you submitted it first, so you should
> get the credit.

Pushed in your name since you did most of the work!
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre