@@ -147,21 +147,31 @@ void odp_schedule_resume(void);
void odp_schedule_release_atomic(void);
/**
- * Release the current ordered context
- *
- * This call is valid only for source queues with ordered synchronization. It
- * hints the scheduler that the user has done all enqueues that need to maintain
- * event order in the current ordered context. The scheduler is allowed to
- * release the ordered context of this thread and avoid reordering any following
- * enqueues. However, the context may be still held until the next
- * odp_schedule() or odp_schedule_multi() call - this call allows but does not
- * force the scheduler to release the context early.
- *
- * Early ordered context release may increase parallelism and thus system
- * performance, since scheduler may start reordering events sooner than the next
- * schedule call.
+ * Release the order associated with an event
+ *
+ * This call tells the scheduler that order no longer needs to be maintained
+ * for the specified event. This call is needed if, for example, the caller
+ * will free or otherwise dispose of an event that came from an ordered queue
+ * without enqueuing it to another queue. This call does not effect the
+ * ordering associated with any other event held by the caller.
+ *
+ * Order release may increase parallelism and thus system performance, since
+ * the scheduler may start resolving reordered events sooner than the next
+ * odp_queue_enq() call.
+ *
+ * @param ev The event to be released from order preservation.
+ *
+ * @retval 0 Success. Upon return ev behaves as if it originated
+ * from a parallel rather than an ordered queue.
+ *
+ * @retval <0 Failure. This can occur if the event did not originate
+ * from an ordered queue (caller error) or the implementation
+ * is unable to release order at this time. In this case,
+ * the caller must not dispose of ev without enqueing it
+ * first to avoid deadlocking other events originating from
+ * ev's ordered queue.
*/
-void odp_schedule_release_ordered(void);
+int odp_schedule_release_ordered(odp_event_t ev);
/**
* Prefetch events for next schedule call
Signed-off-by: Bill Fischofer <bill.fischofer@linaro.org> --- include/odp/api/schedule.h | 38 ++++++++++++++++++++++++-------------- 1 file changed, 24 insertions(+), 14 deletions(-)