1c8c38c588
This is a required workarounds for all products, especially on gen6+ where it causes the command streamer to fail to parse instructions following a WAIT_FOR_EVENT. We use WAIT_FOR_EVENT for synchronising between the GPU and the display engines, and so this bit being unset may cause hangs. References: https://bugzilla.kernel.org/show_bug.cgi?id=52311 Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: stable@vger.kernel.org Reviewed-by: Imre Deak <imre.deak@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> |
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