drm/i915/selftests: Prevent the timeslice expiring during suppression tests (acb9488d) · Commits · 戴 / test

When testing whether we prevent suppressing preemption, it helps to avoid a time slice expiring prematurely. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=111108 Signed-off-by:

drivers/gpu/drm/i915/gt/selftest_lrc.c

+4 −1

Original line number	Diff line number	Diff line
		@@ -913,6 +913,8 @@ static int live_suppress_self_preempt(void *arg)
		goto err_wedged;
		}

		/* Keep postponing the timer to avoid premature slicing */
		mod_timer(&engine->execlists.timer, jiffies + HZ);
		for (depth = 0; depth < 8; depth++) {
		rq_b = spinner_create_request(&b.spin,
		b.ctx, engine,
		@@ -938,7 +940,8 @@ static int live_suppress_self_preempt(void *arg)
		igt_spinner_end(&a.spin);

		if (engine->execlists.preempt_hang.count) {
		pr_err("Preemption recorded x%d, depth %d; should have been suppressed!\n",
		pr_err("Preemption on %s recorded x%d, depth %d; should have been suppressed!\n",
		engine->name,
		engine->execlists.preempt_hang.count,
		depth);
		err = -EINVAL;