[Bug 95472] [i915] Feature request: Add support for fencing for PRIME setups

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=95472

--- Comment #68 from Mike Lothian <mike at fireburn.co.uk> ---
I've traced back the tearing without prime to this commit:

05a76d3d6ad1ee9f9814f88949cc9305fc165460 is the first bad commit 
commit 05a76d3d6ad1ee9f9814f88949cc9305fc165460 
Author: Lyude <cpaul at redhat.com> 
Date:   Wed Aug 17 15:55:57 2016 -0400 

   drm/i915/skl: Ensure pipes with changed wms get added to the state 

   If we're enabling a pipe, we'll need to modify the watermarks on all 
   active planes. Since those planes won't be added to the state on 
   their own, we need to add them ourselves. 

   Signed-off-by: Lyude <cpaul at redhat.com> 
   Reviewed-by: Matt Roper <matthew.d.roper at intel.com> 
   Cc: stable at vger.kernel.org 
   Cc: Ville Syrjälä <ville.syrjala at linux.intel.com> 
   Cc: Daniel Vetter <daniel.vetter at intel.com> 
   Cc: Radhakrishna Sripada <radhakrishna.sripada at intel.com> 
   Cc: Hans de Goede <hdegoede at redhat.com> 
   Signed-off-by: Maarten Lankhorst <maarten.lankhorst at linux.intel.com> 
   Link:
http://patchwork.freedesktop.org/patch/msgid/1471463761-26796-6-git-send-email-cpaul@redhat.com

Which is unrelated to your work

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