If we submit, we do not start timeslicnig 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 <[email protected]> --- drivers/gpu/drm/i915/gt/selftest_lrc.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/gt/selftest_lrc.c b/drivers/gpu/drm/i915/gt/selftest_lrc.c index 985d4041d929..9e02917695b1 100644 --- a/drivers/gpu/drm/i915/gt/selftest_lrc.c +++ b/drivers/gpu/drm/i915/gt/selftest_lrc.c @@ -1244,7 +1244,11 @@ static int live_timeslice_queue(void *arg) if (err) goto err_rq; - intel_engine_flush_submission(engine); + /* Wait until we ack the release_queue and start timeslicing */ + do { + 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 = -- 2.20.1 _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
