448 		gt->usm.acc_queue[i].gt = gt;  in xe_gt_pagefault_init()
449 		spin_lock_init(&gt->usm.acc_queue[i].lock);  in xe_gt_pagefault_init()
450 		INIT_WORK(&gt->usm.acc_queue[i].worker, acc_queue_work_func);  in xe_gt_pagefault_init()
485 		spin_lock(&gt->usm.acc_queue[i].lock);  in xe_gt_pagefault_reset()
486 		gt->usm.acc_queue[i].head = 0;  in xe_gt_pagefault_reset()
487 		gt->usm.acc_queue[i].tail = 0;  in xe_gt_pagefault_reset()
488 		spin_unlock(&gt->usm.acc_queue[i].lock);  in xe_gt_pagefault_reset()
596 static bool get_acc(struct acc_queue *acc_queue, struct acc *acc)  in get_acc()  argument
601 	spin_lock(&acc_queue->lock);  in get_acc()
602 	if (acc_queue->tail != acc_queue->head) {  in get_acc()
604 			(acc_queue->data + acc_queue->tail);  in get_acc()
617 		acc_queue->tail = (acc_queue->tail + ACC_MSG_LEN_DW) %  in get_acc()
621 	spin_unlock(&acc_queue->lock);  in get_acc()
628 	struct acc_queue *acc_queue = container_of(w, struct acc_queue, worker);  in acc_queue_work_func()  local
629 	struct xe_gt *gt = acc_queue->gt;  in acc_queue_work_func()
637 	while (get_acc(acc_queue, &acc)) {  in acc_queue_work_func()
645 		    acc_queue->tail != acc_queue->head) {  in acc_queue_work_func()
652 static bool acc_queue_full(struct acc_queue *acc_queue)  in acc_queue_full()  argument
654 	lockdep_assert_held(&acc_queue->lock);  in acc_queue_full()
656 	return CIRC_SPACE(acc_queue->head, acc_queue->tail, ACC_QUEUE_NUM_DW) <=  in acc_queue_full()
663 	struct acc_queue *acc_queue;  in xe_guc_access_counter_notify_handler()  local
676 	acc_queue = &gt->usm.acc_queue[asid % NUM_ACC_QUEUE];  in xe_guc_access_counter_notify_handler()
678 	spin_lock(&acc_queue->lock);  in xe_guc_access_counter_notify_handler()
679 	full = acc_queue_full(acc_queue);  in xe_guc_access_counter_notify_handler()
681 		memcpy(acc_queue->data + acc_queue->head, msg,  in xe_guc_access_counter_notify_handler()
683 		acc_queue->head = (acc_queue->head + len) % ACC_QUEUE_NUM_DW;  in xe_guc_access_counter_notify_handler()
684 		queue_work(gt->usm.acc_wq, &acc_queue->worker);  in xe_guc_access_counter_notify_handler()
688 	spin_unlock(&acc_queue->lock);  in xe_guc_access_counter_notify_handler()