drm/xe: Add xe_sched_msg_lock/unlock helper

Will help callers to own locking when adding messages to scheduler.
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Jonathan Cavitt <jonathan.cavitt@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240809191929.3138956-2-matthew.brost@intel.com

drivers/gpu/drm/xe/xe_gpu_scheduler.c

@@ -15,11 +15,11 @@ static void xe_sched_process_msg_queue_if_ready(struct xe_gpu_scheduler *sched)
 {
 	struct xe_sched_msg *msg;
 
-	spin_lock(&sched->base.job_list_lock);
+	xe_sched_msg_lock(sched);
 	msg = list_first_entry_or_null(&sched->msgs, struct xe_sched_msg, link);
 	if (msg)
 		xe_sched_process_msg_queue(sched);
-	spin_unlock(&sched->base.job_list_lock);
+	xe_sched_msg_unlock(sched);
 }
 
 static struct xe_sched_msg *
@@ -27,12 +27,12 @@ xe_sched_get_msg(struct xe_gpu_scheduler *sched)
 {
 	struct xe_sched_msg *msg;
 
-	spin_lock(&sched->base.job_list_lock);
+	xe_sched_msg_lock(sched);
 	msg = list_first_entry_or_null(&sched->msgs,
 				       struct xe_sched_msg, link);
 	if (msg)
 		list_del(&msg->link);
-	spin_unlock(&sched->base.job_list_lock);
+	xe_sched_msg_unlock(sched);
 
 	return msg;
 }
@@ -93,9 +93,9 @@ void xe_sched_submission_stop(struct xe_gpu_scheduler *sched)
 void xe_sched_add_msg(struct xe_gpu_scheduler *sched,
 		      struct xe_sched_msg *msg)
 {
-	spin_lock(&sched->base.job_list_lock);
+	xe_sched_msg_lock(sched);
 	list_add_tail(&msg->link, &sched->msgs);
-	spin_unlock(&sched->base.job_list_lock);
+	xe_sched_msg_unlock(sched);
 
 	xe_sched_process_msg_queue(sched);
 }

drivers/gpu/drm/xe/xe_gpu_scheduler.h

@@ -25,6 +25,16 @@ void xe_sched_submission_stop(struct xe_gpu_scheduler *sched);
 void xe_sched_add_msg(struct xe_gpu_scheduler *sched,
 		      struct xe_sched_msg *msg);
 
+static inline void xe_sched_msg_lock(struct xe_gpu_scheduler *sched)
+{
+	spin_lock(&sched->base.job_list_lock);
+}
+
+static inline void xe_sched_msg_unlock(struct xe_gpu_scheduler *sched)
+{
+	spin_unlock(&sched->base.job_list_lock);
+}
+
 static inline void xe_sched_stop(struct xe_gpu_scheduler *sched)
 {
 	drm_sched_stop(&sched->base, NULL);