[Intel-gfx] [PATCH] drm/i915: Fix current fb blocking for page flip.

[Chia-I Wu]

Hi list,

According to the doc for page_flip, intel_crtc_page_flip should

   ... block all rendering to the current fb until the flip has
   completed.

I am not entirely sure, but it seems that it is
work->old_fb_obj->pending_flip that needs to be incremented instead of
work->pending_flip_obj->pending_flip.  This patch does fix the
rendering artifacts with my Android on i915 project.  Any thought?

-- 
olv at LunarG.com
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