SWDEV-264244 - Hide Notifications from HIP

This fixes hipStreamQuery returning hipErrorNotReady when idle
Change-Id: I3f77666a00bc6a7162b6c660d79e76c09669d94f

rocclr/platform/commandqueue.cpp

@@ -200,21 +200,24 @@ void HostQueue::append(Command& command) {
   if (!IS_HIP) {
     return;
   }
-  // Set last submitted command
-  Command* prevLastEnqueueCommand;
-  command.retain();
-  {
-    // lastCmdLock_ ensures that lastEnqueueCommand() can retain the command before it is swapped
-    // out. We want to keep this critical section as short as possible, so the command should be
-    // released outside this section.
-    ScopedLock l(lastCmdLock_);
 
-    prevLastEnqueueCommand = lastEnqueueCommand_;
-    lastEnqueueCommand_ = &command;
-  }
+  if (command.waitingEvent() == nullptr) {
+    // Set last submitted command
+    Command* prevLastEnqueueCommand;
+    command.retain();
+    {
+       // lastCmdLock_ ensures that lastEnqueueCommand() can retain the command before it is swapped
+       // out. We want to keep this critical section as short as possible, so the command should be
+       // released outside this section.
+       ScopedLock l(lastCmdLock_);
 
-  if (prevLastEnqueueCommand != nullptr) {
-    prevLastEnqueueCommand->release();
+       prevLastEnqueueCommand = lastEnqueueCommand_;
+       lastEnqueueCommand_ = &command;
+    }
+
+    if (prevLastEnqueueCommand != nullptr) {
+      prevLastEnqueueCommand->release();
+    }
   }
 }