Quoting Chris Wilson (2019-12-03 15:26:31) > Only along the submission path can we guarantee that the locked request > is indeed from a foreign engine, and so the nesting of engine/rq is > permissible. On the submission tasklet (process_csb()), we may find > ourselves competing with the normal nesting of rq/engine, invalidating > our nesting. As we only use the spinlock for debug purposes, skip the > debug if we cannot acquire the spinlock for safe validation - catching > 99% of the bugs is better than causing a hard lockup. > > Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> > Cc: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx> -Chris _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
