9ef36fc2d0
Since the removal of the no-semaphore boosting, we rely on timeslicing to reorder passed inter-dependency hogs across the engines. However, we require preemption to support timeslicing into user payloads, and not all machine support preemption so we do not universally enable timeslicing, even when it would correctly preempt our own inter-engine semaphores. Since timeslicing and semaphore priority deboosting is now disabled on Broadwell/Braswell, we have to follow suite and not use semaphores. Testcase: igt/gem_exec_schedule/semaphore-codependency # bdw/bsw Fixes: |
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