We have a case of a mysteriously absent pulse, so dump the engine details to see if we can find out what happened to it.
References: https://bugs.freedesktop.org/show_bug.cgi?id=112405 Signed-off-by: Chris Wilson <ch...@chris-wilson.co.uk> --- drivers/gpu/drm/i915/gt/intel_engine_cs.c | 2 ++ drivers/gpu/drm/i915/gt/selftest_engine_heartbeat.c | 5 +++++ 2 files changed, 7 insertions(+) diff --git a/drivers/gpu/drm/i915/gt/intel_engine_cs.c b/drivers/gpu/drm/i915/gt/intel_engine_cs.c index 8f6e353caa66..df3369c3f330 100644 --- a/drivers/gpu/drm/i915/gt/intel_engine_cs.c +++ b/drivers/gpu/drm/i915/gt/intel_engine_cs.c @@ -1479,6 +1479,8 @@ void intel_engine_dump(struct intel_engine_cs *engine, drm_printf(m, "*** WEDGED ***\n"); drm_printf(m, "\tAwake? %d\n", atomic_read(&engine->wakeref.count)); + drm_printf(m, "\tBarriers?: %s\n", + yesno(!llist_empty(&engine->barrier_tasks))); rcu_read_lock(); rq = READ_ONCE(engine->heartbeat.systole); diff --git a/drivers/gpu/drm/i915/gt/selftest_engine_heartbeat.c b/drivers/gpu/drm/i915/gt/selftest_engine_heartbeat.c index f665a0e23c61..0b1148cf3f61 100644 --- a/drivers/gpu/drm/i915/gt/selftest_engine_heartbeat.c +++ b/drivers/gpu/drm/i915/gt/selftest_engine_heartbeat.c @@ -91,6 +91,11 @@ static int __live_idle_pulse(struct intel_engine_cs *engine, GEM_BUG_ON(!llist_empty(&engine->barrier_tasks)); if (intel_gt_retire_requests_timeout(engine->gt, HZ / 5)) { + struct drm_printer m = drm_err_printer("pulse"); + + pr_err("%s: no heartbeat pulse?\n", engine->name); + intel_engine_dump(engine, &m, "%s", engine->name); + err = -ETIME; goto out; } -- 2.24.0 _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx
