Merge pull request #1814 from nrspruit/fix_l0_queue_cts

[L0] Fix Queue get info and fix Queue release decrement

Author: kbenzie

source/adapters/level_zero/queue.cpp

@@ -365,14 +365,10 @@ ur_result_t ur_queue_handle_legacy_t_::queueGetInfo(
   case UR_QUEUE_INFO_REFERENCE_COUNT:
     return ReturnValue(uint32_t{Queue->RefCount.load()});
   case UR_QUEUE_INFO_FLAGS:
-    die("UR_QUEUE_INFO_FLAGS in urQueueGetInfo not implemented\n");
-    break;
+    return ReturnValue(Queue->Properties);
   case UR_QUEUE_INFO_SIZE:
-    die("UR_QUEUE_INFO_SIZE in urQueueGetInfo not implemented\n");
-    break;
   case UR_QUEUE_INFO_DEVICE_DEFAULT:
-    die("UR_QUEUE_INFO_DEVICE_DEFAULT in urQueueGetInfo not implemented\n");
-    break;
+    return UR_RESULT_ERROR_UNSUPPORTED_ENUMERATION;
   case UR_QUEUE_INFO_EMPTY: {
     // We can exit early if we have in-order queue.
     if (Queue->isInOrderQueue()) {
@@ -606,8 +602,14 @@ ur_result_t ur_queue_handle_legacy_t_::queueRelease() {
   {
     std::scoped_lock<ur_shared_mutex> Lock(Queue->Mutex);
 
-    if ((--Queue->RefCountExternal) != 0)
+    if ((--Queue->RefCountExternal) != 0) {
+      // When an External Reference exists one still needs to decrement the
+      // internal reference count. When the External Reference count == 0, then
+      // cleanup of the queue begins and the final decrement of the internal
+      // reference count is completed.
+      Queue->RefCount.decrementAndTest();
       return UR_RESULT_SUCCESS;
+    }
 
     // When external reference count goes to zero it is still possible
     // that internal references still exists, e.g. command-lists that

test/conformance/queue/queue_adapter_level_zero.match

@@ -1 +1 @@
-{{Segmentation fault|Aborted}}
+