sys/kern/kern_intr.c

90 static MALLOC_DEFINE(M_ITHREAD, "ithread", "Interrupt Threads");
113 static void	ithread_destroy(struct intr_thread *ithread);
124 /* Map an interrupt type to an ithread priority. */
163  * Update an ithread based on the associated intr_event.
252 	 * If this event has an ithread, update it's priority and
384  * Bind an interrupt event's ithread to the specified CPU.
568 ithread_destroy(struct intr_thread *ithread)
572 	CTR2(KTR_INTR, "%s: killing %s", __func__, ithread->it_event->ie_name);
573 	td = ithread->it_thread;
575 	ithread->it_flags |= IT_DEAD;
624 			msleep(ie, &ie->ie_lock, 0, "ithread", 0);
695 	/* For filtered handlers, create a private ithread to run on. */
706 				msleep(ie, &ie->ie_lock, 0, "ithread", 0);
818  * Sleep until an ithread finishes executing an interrupt handler.
889 	 * If there is no ithread, then just remove the handler and return.
902 	 * handler as being dead and let the ithread do the actual removal.
963 	 * If no ithread or no handlers, then we have a stray interrupt.
975 	 * If any of the handlers for this ithread claim to be good
984 	KASSERT(p != NULL, ("ithread %s has no process", ie->ie_name));
993 	 * transfer of this order to loads in the ithread.
1054 	/* Private or global ithread? */
1058 	 * handler as being dead and let the ithread do the actual removal.
1087 	 * so we can kill the private ithread if any.
1126 	 * If no ithread or no handlers, then we have a stray interrupt.
1136 	 * If any of the handlers for this ithread claim to be good
1145 	KASSERT(p != NULL, ("ithread %s has no process", ie->ie_name));
1154 	 * transfer of this order to loads in the ithread.
1236 	 * Set ih_need for this handler so that if the ithread is already
1410 	    ("%s: ithread and proc linkage out of sync", __func__));
1441 		WITNESS_WARN(WARN_PANIC, NULL, "suspending ithread");
1532 		 * functions - a filter wrapper and an ithread wrapper.
1534 		 * could ask the system to schedule the ithread and mask
1536 		 * of just an ithread handler.
1556 	/* Schedule the ithread if needed. */
1586 	    ("%s: ithread and proc linkage out of sync", __func__));
1621 		WITNESS_WARN(WARN_PANIC, NULL, "suspending ithread");
1664  *                              scheduling the per-handler ithread.
1666  * In case an ithread has to be scheduled, in *ithd there will be a
1715 	 * all of the filter-less handlers to run in the ithread.
1772 	/* Schedule an ithread if needed. */
1947 		panic("died while creating vm swi ithread");