If we submit, we do not start timeslicing until we process the CS event
that marks the start of the context running on HW. So in the selftest,
be sure to wait until we have processed the pending events before
asserting that timeslicing has begun.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200403190209.21818-1-chris@chris-wilson.co.uk
if (err)
goto err_rq;
- intel_engine_flush_submission(engine);
+ /* Wait until we ack the release_queue and start timeslicing */
+ do {
+ cond_resched();
+ intel_engine_flush_submission(engine);
+ } while (READ_ONCE(engine->execlists.pending[0]));
+
if (!READ_ONCE(engine->execlists.timer.expires) &&
!i915_request_completed(rq)) {
struct drm_printer p =