diff options
| -rw-r--r-- | drivers/gpu/drm/i915/intel_breadcrumbs.c | 22 |
1 files changed, 11 insertions, 11 deletions
diff --git a/drivers/gpu/drm/i915/intel_breadcrumbs.c b/drivers/gpu/drm/i915/intel_breadcrumbs.c index 24c6fefdd0b1..a7740696114d 100644 --- a/drivers/gpu/drm/i915/intel_breadcrumbs.c +++ b/drivers/gpu/drm/i915/intel_breadcrumbs.c @@ -217,7 +217,7 @@ void intel_engine_disarm_breadcrumbs(struct intel_engine_cs *engine) struct intel_wait *wait, *n; if (!b->irq_armed) - return; + goto wakeup_signaler; /* * We only disarm the irq when we are idle (all requests completed), @@ -242,6 +242,14 @@ void intel_engine_disarm_breadcrumbs(struct intel_engine_cs *engine) b->waiters = RB_ROOT; spin_unlock_irq(&b->rb_lock); + + /* + * The signaling thread may be asleep holding a reference to a request, + * that had its signaling cancelled prior to being preempted. We need + * to kick the signaler, just in case, to release any such reference. + */ +wakeup_signaler: + wake_up_process(b->signaler); } static bool use_fake_irq(const struct intel_breadcrumbs *b) @@ -686,23 +694,15 @@ static int intel_breadcrumbs_signaler(void *arg) } if (unlikely(do_schedule)) { - DEFINE_WAIT(exec); - if (kthread_should_park()) kthread_parkme(); - if (kthread_should_stop()) { - GEM_BUG_ON(request); + if (unlikely(kthread_should_stop())) { + i915_gem_request_put(request); break; } - if (request) - add_wait_queue(&request->execute, &exec); - schedule(); - - if (request) - remove_wait_queue(&request->execute, &exec); } i915_gem_request_put(request); } while (1); |