sys/kern/kern_intr.c

108 			      struct intr_handler *ih);
118 		    struct intr_handler *ih);
197 	struct intr_handler *ih;
209 	TAILQ_FOREACH(ih, &ie->ie_handlers, ih_next) {
210 		if (strlen(ie->ie_fullname) + strlen(ih->ih_name) + 1 <
213 			strcat(ie->ie_fullname, ih->ih_name);
217 		if (ih->ih_flags & IH_ENTROPY)
229 		ih = TAILQ_FIRST(&ie->ie_handlers);
230 		missed = strlen(ie->ie_fullname) + strlen(ih->ih_name) + 2 -
233 		strcat(ie->ie_fullname, &ih->ih_name[missed]);
543 ithread_create(const char *name, struct intr_handler *ih)
551 	error = kproc_kthread_add(ithread_loop, ih, &intrproc,
589 	struct intr_handler *ih, *temp_ih;
596 	ih = malloc(sizeof(struct intr_handler), M_ITHREAD, M_WAITOK | M_ZERO);
597 	ih->ih_filter = filter;
598 	ih->ih_handler = handler;
599 	ih->ih_argument = arg;
600 	strlcpy(ih->ih_name, name, sizeof(ih->ih_name));
601 	ih->ih_event = ie;
602 	ih->ih_pri = pri;
604 		ih->ih_flags = IH_EXCLUSIVE;
606 		ih->ih_flags |= IH_MPSAFE;
608 		ih->ih_flags |= IH_ENTROPY;
616 			free(ih, M_ITHREAD);
640 		if (temp_ih->ih_pri > ih->ih_pri)
644 		TAILQ_INSERT_TAIL(&ie->ie_handlers, ih, ih_next);
646 		TAILQ_INSERT_BEFORE(temp_ih, ih, ih_next);
649 	CTR3(KTR_INTR, "%s: added %s to %s", __func__, ih->ih_name,
654 		*cookiep = ih;
663 	struct intr_handler *ih, *temp_ih;
670 	ih = malloc(sizeof(struct intr_handler), M_ITHREAD, M_WAITOK | M_ZERO);
671 	ih->ih_filter = filter;
672 	ih->ih_handler = handler;
673 	ih->ih_argument = arg;
674 	strlcpy(ih->ih_name, name, sizeof(ih->ih_name));
675 	ih->ih_event = ie;
676 	ih->ih_pri = pri;
678 		ih->ih_flags = IH_EXCLUSIVE;
680 		ih->ih_flags |= IH_MPSAFE;
682 		ih->ih_flags |= IH_ENTROPY;
690 			free(ih, M_ITHREAD);
698 		it = ithread_create("intr: newborn", ih);
701 		ih->ih_thread = it;
710 				it = ithread_create("intr: newborn", ih);
723 		if (temp_ih->ih_pri > ih->ih_pri)
727 		TAILQ_INSERT_TAIL(&ie->ie_handlers, ih, ih_next);
729 		TAILQ_INSERT_BEFORE(temp_ih, ih, ih_next);
732 	CTR3(KTR_INTR, "%s: added %s to %s", __func__, ih->ih_name,
737 		*cookiep = ih;
750 	struct intr_handler *ih;
756 	TAILQ_FOREACH(ih, &ie->ie_handlers, ih_next) {
757 		if (ih == cookie)
760 	if (ih == NULL) {
765 	ih = cookie;
774 	start = strchr(ih->ih_name, ':');
776 		start = strchr(ih->ih_name, 0);
783 	space = sizeof(ih->ih_name) - (start - ih->ih_name) - 1;
804 	struct intr_handler *ih;
807 	ih = (struct intr_handler *)cookie;
808 	if (ih == NULL)
810 	ie = ih->ih_event;
813 	    ih->ih_name));
864 	struct intr_handler *ih;
880 	TAILQ_FOREACH(ih, &ie->ie_handlers, ih_next)
881 		if (ih == handler)
885 	    ih->ih_name, ie->ie_name);
937 	TAILQ_FOREACH(ih, &ie->ie_handlers, ih_next) {
938 		if (!(ih->ih_flags & IH_FAST)) {
1018 	struct intr_handler *ih;
1034 	TAILQ_FOREACH(ih, &ie->ie_handlers, ih_next)
1035 		if (ih == handler)
1039 	    ih->ih_name, ie->ie_name);
1101 	TAILQ_FOREACH(ih, &ie->ie_handlers, ih_next) {
1223 	struct intr_handler *ih = (struct intr_handler *)cookie;
1224 	struct intr_event *ie = ih->ih_event;
1228 	CTR3(KTR_INTR, "swi_sched: %s %s need=%d", ie->ie_name, ih->ih_name,
1229 	    ih->ih_need);
1231 	entropy.event = (uintptr_t)ih;
1240 	ih->ih_need = 1;
1268 priv_ithread_execute_handler(struct proc *p, struct intr_handler *ih)
1272 	ie = ih->ih_event;
1277 	if (ih->ih_flags & IH_DEAD) {
1279 		TAILQ_REMOVE(&ie->ie_handlers, ih, ih_next);
1280 		ih->ih_flags &= ~IH_DEAD;
1281 		wakeup(ih);
1288 	     __func__, p->p_pid, (void *)ih->ih_handler, ih->ih_argument,
1289 	     ih->ih_name, ih->ih_flags);
1291 	if (!(ih->ih_flags & IH_MPSAFE))
1293 	ih->ih_handler(ih->ih_argument);
1294 	if (!(ih->ih_flags & IH_MPSAFE))
1306 	struct intr_handler *ih, *ihn;
1308 	TAILQ_FOREACH_SAFE(ih, &ie->ie_handlers, ih_next, ihn) {
1313 		if (ih->ih_flags & IH_DEAD) {
1315 			TAILQ_REMOVE(&ie->ie_handlers, ih, ih_next);
1316 			ih->ih_flags &= ~IH_DEAD;
1317 			wakeup(ih);
1323 		if (ih->ih_handler == NULL)
1336 		    atomic_cmpset_int(&ih->ih_need, 1, 0) == 0)
1341 		    __func__, p->p_pid, (void *)ih->ih_handler,
1342 		    ih->ih_argument, ih->ih_name, ih->ih_flags);
1344 		if (!(ih->ih_flags & IH_MPSAFE))
1346 		ih->ih_handler(ih->ih_argument);
1347 		if (!(ih->ih_flags & IH_MPSAFE))
1482 	struct intr_handler *ih;
1509 	TAILQ_FOREACH(ih, &ie->ie_handlers, ih_next) {
1510 		if (ih->ih_filter == NULL) {
1515 		    ih->ih_filter, ih->ih_argument == NULL ? frame :
1516 		    ih->ih_argument, ih->ih_name);
1517 		if (ih->ih_argument == NULL)
1518 			ret = ih->ih_filter(frame);
1520 			ret = ih->ih_filter(ih->ih_argument);
1525 		    ih->ih_name));
1573 	struct intr_handler *ih;
1582 	ih = (struct intr_handler *)arg;
1583 	priv = (ih->ih_thread != NULL) ? 1 : 0;
1584 	ithd = (priv) ? ih->ih_thread : ih->ih_event->ie_thread;
1617 				priv_ithread_execute_handler(p, ih);
1675 	struct intr_handler *ih;
1681 	TAILQ_FOREACH(ih, &ie->ie_handlers, ih_next) {
1688 		arg = ((ih->ih_argument == NULL) ? frame : ih->ih_argument);
1691 		     ih->ih_filter, ih->ih_handler, arg, ih->ih_name);
1693 		if (ih->ih_filter != NULL)
1694 			ret = ih->ih_filter(arg);
1703 		    ih->ih_name));
1707 			*ithd = ih->ih_thread;
1787 db_dump_intrhand(struct intr_handler *ih)
1791 	db_printf("\t%-10s ", ih->ih_name);
1792 	switch (ih->ih_pri) {
1812 		if (ih->ih_pri >= PI_SOFT)
1815 			db_printf("%4u", ih->ih_pri);
1819 	if (ih->ih_filter != NULL) {
1821 		db_printsym((uintptr_t)ih->ih_filter, DB_STGY_PROC);
1823 	if (ih->ih_handler != NULL) {
1824 		if (ih->ih_filter != NULL)
1827 		db_printsym((uintptr_t)ih->ih_handler, DB_STGY_PROC);
1829 	db_printf("(%p)", ih->ih_argument);
1830 	if (ih->ih_need ||
1831 	    (ih->ih_flags & (IH_EXCLUSIVE | IH_ENTROPY | IH_DEAD |
1835 		if (ih->ih_flags & IH_EXCLUSIVE) {
1841 		if (ih->ih_flags & IH_ENTROPY) {
1847 		if (ih->ih_flags & IH_DEAD) {
1853 		if (ih->ih_flags & IH_MPSAFE) {
1859 		if (ih->ih_need) {
1875 	struct intr_handler *ih;
1915 		TAILQ_FOREACH(ih, &ie->ie_handlers, ih_next)
1916 		    db_dump_intrhand(ih);