P4 to Git Change 1620765 by skudchad@skudchad_test2_win_opencl on 2018/10/17 16:58:04

SWDEV-145570 - [HIP] Track last used event and use last enqueued command in a stream rather than creating a new event

	ReviewBoardURL = http://ocltc.amd.com/reviews/r/15996/diff/

Affected files ...

... //depot/stg/opencl/drivers/opencl/api/hip/hip_context.cpp#15 edit
... //depot/stg/opencl/drivers/opencl/api/hip/hip_event.cpp#7 edit
... //depot/stg/opencl/drivers/opencl/api/hip/hip_stream.cpp#14 edit
... //depot/stg/opencl/drivers/opencl/runtime/platform/command.cpp#90 edit
... //depot/stg/opencl/drivers/opencl/runtime/platform/commandqueue.cpp#28 edit
... //depot/stg/opencl/drivers/opencl/runtime/platform/commandqueue.hpp#20 edit


[ROCm/clr commit: 19caea543c]

projects/clr/rocclr/runtime/platform/commandqueue.hpp

@@ -163,6 +163,8 @@ class HostQueue : public CommandQueue {
  private:
   ConcurrentLinkedQueue<Command*> queue_;  //!< The queue.
 
+  Command* lastEnqueueCommand_;  //!< The last submitted command
+
   //! Await commands and execute them as they become ready.
   void loop(device::VirtualDevice* virtualDevice);
 
@@ -204,6 +206,12 @@ class HostQueue : public CommandQueue {
 
   //! Return the current queue as the HostQueue
   virtual HostQueue* asHostQueue() { return this; }
+
+  //! Get last enqueued command
+  Command* getLastQueuedCommand(bool retain);
+
+  //! Set last enqueued command
+  void setLastQueuedCommand(Command* lastCommand);
 };