From: Chris Wilson Date: Mon, 12 Aug 2019 09:10:39 +0000 (+0100) Subject: drm/i915/selftests: Prevent the timeslice expiring during suppression tests X-Git-Tag: v5.15~4946^2~43^2~436 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=acb9488dcad866987406aefc4f8298f2bf971575;p=platform%2Fkernel%2Flinux-starfive.git drm/i915/selftests: Prevent the timeslice expiring during suppression tests 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: Chris Wilson Reviewed-by: Mika Kuoppala Link: https://patchwork.freedesktop.org/patch/msgid/20190812091045.29587-2-chris@chris-wilson.co.uk --- diff --git a/drivers/gpu/drm/i915/gt/selftest_lrc.c b/drivers/gpu/drm/i915/gt/selftest_lrc.c index 91f1c90..b797be16 100644 --- a/drivers/gpu/drm/i915/gt/selftest_lrc.c +++ b/drivers/gpu/drm/i915/gt/selftest_lrc.c @@ -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;