603     driver_filter_t filter, driver_intr_t handler, void *arg, u_char pri,  in intr_event_add_handler()  argument
610 	if (ie == NULL || name == NULL || (handler == NULL && filter == NULL))  in intr_event_add_handler()
622 	ih->ih_handler = handler;  in intr_event_add_handler()
650 	while (ie->ie_thread == NULL && handler != NULL) {  in intr_event_add_handler()
799 intr_handler_barrier(struct intr_handler *handler)  in intr_handler_barrier()  argument
803 	ie = handler->ih_event;  in intr_handler_barrier()
805 	KASSERT((handler->ih_flags & IH_DEAD) == 0,  in intr_handler_barrier()
812 	if ((handler->ih_flags & IH_CHANGED) == 0) {  in intr_handler_barrier()
813 		handler->ih_flags |= IH_CHANGED;  in intr_handler_barrier()
816 	while ((handler->ih_flags & IH_CHANGED) != 0)  in intr_handler_barrier()
817 		msleep(handler, &ie->ie_lock, 0, "ih_barr", 0);  in intr_handler_barrier()
862 	struct intr_handler *handler = (struct intr_handler *)cookie;  in intr_event_remove_handler()  local
867 	if (handler == NULL)  in intr_event_remove_handler()
869 	ie = handler->ih_event;  in intr_event_remove_handler()
872 	    handler->ih_name));  in intr_event_remove_handler()
875 	CTR3(KTR_INTR, "%s: removing %s from %s", __func__, handler->ih_name,  in intr_event_remove_handler()
878 		if (ih == handler)  in intr_event_remove_handler()
883 		    "interrupt event \"%s\"", handler->ih_name, ie->ie_name);  in intr_event_remove_handler()
902 		KASSERT((handler->ih_flags & IH_DEAD) == 0,  in intr_event_remove_handler()
904 		handler->ih_flags |= IH_DEAD;  in intr_event_remove_handler()
906 		while (handler->ih_flags & IH_DEAD)  in intr_event_remove_handler()
907 			msleep(handler, &ie->ie_lock, 0, "iev_rmh", 0);  in intr_event_remove_handler()
911 	free(handler, M_ITHREAD);  in intr_event_remove_handler()
918 	struct intr_handler *handler = (struct intr_handler *)cookie;  in intr_event_suspend_handler()  local
921 	if (handler == NULL)  in intr_event_suspend_handler()
923 	ie = handler->ih_event;  in intr_event_suspend_handler()
926 	    handler->ih_name));  in intr_event_suspend_handler()
928 	handler->ih_flags |= IH_SUSP;  in intr_event_suspend_handler()
929 	intr_handler_barrier(handler);  in intr_event_suspend_handler()
937 	struct intr_handler *handler = (struct intr_handler *)cookie;  in intr_event_resume_handler()  local
940 	if (handler == NULL)  in intr_event_resume_handler()
942 	ie = handler->ih_event;  in intr_event_resume_handler()
945 	    handler->ih_name));  in intr_event_resume_handler()
952 	handler->ih_flags &= ~IH_SUSP;  in intr_event_resume_handler()
953 	intr_handler_barrier(handler);  in intr_event_resume_handler()
1042 swi_add(struct intr_event **eventp, const char *name, driver_intr_t handler,  in swi_add()  argument
1064 	if (handler != NULL) {  in swi_add()
1065 		error = intr_event_add_handler(ie, name, NULL, handler, arg,  in swi_add()