[CI 12/12] i915 barriers

[Tvrtko Ursulin]

From: Tvrtko Ursulin <tvrtko.ursulin at intel.com>

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
---
 drivers/gpu/drm/i915/i915_active.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/gpu/drm/i915/i915_active.c b/drivers/gpu/drm/i915/i915_active.c
index 01d42573455a..ff7a8e984873 100644
--- a/drivers/gpu/drm/i915/i915_active.c
+++ b/drivers/gpu/drm/i915/i915_active.c
@@ -906,6 +906,7 @@ int i915_active_acquire_preallocate_barrier(struct i915_active *ref,
 			 * for our tracking of the pending barrier.
 			 */
 			RCU_INIT_POINTER(node->base.fence, ERR_PTR(-EAGAIN));
+			__dma_fence_cb_init(&node->base.cb, NULL);
 			node->base.cb.node.prev = (void *)engine;
 			__i915_active_acquire(ref);
 		}
@@ -1006,8 +1007,12 @@ void i915_request_add_active_barriers(struct i915_request *rq)
 	 */
 	spin_lock_irqsave(&rq->lock, flags);
 	llist_for_each_safe(node, next, node) {
+		struct active_node *active_node = barrier_from_ll(node);
+
 		/* serialise with reuse_idle_barrier */
 		smp_store_mb(*ll_to_fence_slot(node), &rq->fence);
+		trace_printk("  Ab %llx:%llu @ %u [%p] (i915) (%lx)\n",
+			     rq->fence.context, rq->fence.seqno, rq->fence.waitcount, &active_node->base.cb, active_node->base.cb.flags);
 		list_add_tail((struct list_head *)node, &rq->fence.cb_list);
 	}
 	spin_unlock_irqrestore(&rq->lock, flags);
-- 
2.34.1