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.
(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.