diff options
| -rw-r--r-- | drivers/gpu/drm/i915/i915_guc_submission.c | 12 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_lrc.c | 12 |
2 files changed, 0 insertions, 24 deletions
diff --git a/drivers/gpu/drm/i915/i915_guc_submission.c b/drivers/gpu/drm/i915/i915_guc_submission.c index 6193ad7edcf4..1642fff9cf13 100644 --- a/drivers/gpu/drm/i915/i915_guc_submission.c +++ b/drivers/gpu/drm/i915/i915_guc_submission.c @@ -662,18 +662,6 @@ static bool i915_guc_dequeue(struct intel_engine_cs *engine) struct rb_node *rb; bool submit = false; - /* After execlist_first is updated, the tasklet will be rescheduled. - * - * If we are currently running (inside the tasklet) and a third - * party queues a request and so updates engine->execlist_first under - * the spinlock (which we have elided), it will atomically set the - * TASKLET_SCHED flag causing the us to be re-executed and pick up - * the change in state (the update to TASKLET_SCHED incurs a memory - * barrier making this cross-cpu checking safe). - */ - if (!READ_ONCE(engine->execlist_first)) - return false; - spin_lock_irq(&engine->timeline->lock); rb = engine->execlist_first; while (rb) { diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c index 12cf645793ed..c8f7c631fc1f 100644 --- a/drivers/gpu/drm/i915/intel_lrc.c +++ b/drivers/gpu/drm/i915/intel_lrc.c @@ -402,18 +402,6 @@ static void execlists_dequeue(struct intel_engine_cs *engine) struct rb_node *rb; bool submit = false; - /* After execlist_first is updated, the tasklet will be rescheduled. - * - * If we are currently running (inside the tasklet) and a third - * party queues a request and so updates engine->execlist_first under - * the spinlock (which we have elided), it will atomically set the - * TASKLET_SCHED flag causing the us to be re-executed and pick up - * the change in state (the update to TASKLET_SCHED incurs a memory - * barrier making this cross-cpu checking safe). - */ - if (!READ_ONCE(engine->execlist_first)) - return; - last = port->request; if (last) /* WaIdleLiteRestore:bdw,skl |