[Intel-gfx] [PATCH 1/3] drm/i915/selftests: Kick timeslice until selftest yields

[Chris Wilson]

Keep on kicking the timeslice in case on the first retirement, it did
not stay idle. This may happen when using semaphore yields.

Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
---
 drivers/gpu/drm/i915/gt/selftest_execlists.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/gt/selftest_execlists.c b/drivers/gpu/drm/i915/gt/selftest_execlists.c
index 7f2a6421f220..2d0d7e17f042 100644
--- a/drivers/gpu/drm/i915/gt/selftest_execlists.c
+++ b/drivers/gpu/drm/i915/gt/selftest_execlists.c
@@ -1173,7 +1173,7 @@ static int live_timeslice_rewind(void *arg)
 
 		/* ELSP[] = { { A:rq1, A:rq2 }, { B:rq1 } } */
 		ENGINE_TRACE(engine, "forcing tasklet for rewind\n");
-		if (i915_request_is_active(rq[A2])) { /* semaphore yielded! */
+		while (i915_request_is_active(rq[A2])) { /* semaphore yield! */
 			/* Wait for the timeslice to kick in */
 			del_timer(&engine->execlists.timer);
 			tasklet_hi_schedule(&engine->execlists.tasklet);
-- 
2.20.1