* SWDEV-515895: Fix for hang in hsa_barrier
- Root cause of hang is enqueue_packet using a completed barrier
- This occurs because set_barrier does not correctly mark the barrier
as complete.
- Fixed by consolidating duplicate code for how a barrier is:
- Marked as complete
- Added common function and trace message
- Checked as complete
- Removed internal completion tracking variable in favor of signal
- Added some log messages which were useful in tracking this hang
- Destroying an hsa_barrier now calls the provided completion callback
* formatting
* Fix hsa_barrier test
- Removes assumption that enqueue_packet always generates packets
- Add assertion that a complete barrier does not generate packets
* formatting
* Address review comments
Meserve, Mark
61307442f0