iris: Implement fine-grained fences with semaphores
(Awaiting kernel changes to land.)
This uses MI_SEMAPHORE_WAIT to block mid-batch and rely on kernel GPU scheduler timeslicing to preempt us and schedule a job that will eventually unblock us.
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(Awaiting kernel changes to land.)
This uses MI_SEMAPHORE_WAIT to block mid-batch and rely on kernel GPU scheduler timeslicing to preempt us and schedule a job that will eventually unblock us.