2 * Copyright (c) 1999, 2000 Matthew R. Green
3 * Copyright (c) 2009 by Marius Strobl <marius@FreeBSD.org>
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
22 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
24 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
25 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * from: NetBSD: ebus.c,v 1.52 2008/05/29 14:51:26 mrg Exp
32 * Copyright (c) 2001 Thomas Moestl <tmm@FreeBSD.org>
33 * All rights reserved.
35 * Redistribution and use in source and binary forms, with or without
36 * modification, are permitted provided that the following conditions
38 * 1. Redistributions of source code must retain the above copyright
39 * notice, this list of conditions and the following disclaimer.
40 * 2. Redistributions in binary form must reproduce the above copyright
41 * notice, this list of conditions and the following disclaimer in the
42 * documentation and/or other materials provided with the distribution.
43 * 3. The name of the author may not be used to endorse or promote products
44 * derived from this software without specific prior written permission.
46 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
47 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
48 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
49 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
50 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
51 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
52 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
53 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
54 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
55 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
59 #include <sys/cdefs.h>
60 __FBSDID("$FreeBSD$");
63 * Driver for JBus to EBus and PCI to EBus bridges
66 #include <sys/param.h>
67 #include <sys/systm.h>
69 #include <sys/kernel.h>
70 #include <sys/malloc.h>
71 #include <sys/module.h>
74 #include <dev/ofw/ofw_bus.h>
75 #include <dev/ofw/ofw_bus_subr.h>
76 #include <dev/ofw/openfirm.h>
78 #include <machine/bus.h>
80 #include <machine/bus_common.h>
82 #include <machine/intr_machdep.h>
83 #include <machine/resource.h>
85 #include <dev/pci/pcireg.h>
86 #include <dev/pci/pcivar.h>
88 #include <sparc64/pci/ofw_pci.h>
91 * The register, interrupt map and for the PCI variant also the ranges
92 * properties are identical to the ISA ones.
94 #include <sparc64/isa/ofw_isa.h>
96 struct ebus_nexus_ranges {
104 struct ebus_devinfo {
105 struct ofw_bus_devinfo edi_obdinfo;
106 struct resource_list edi_rl;
111 struct rman eri_rman;
112 struct resource *eri_res;
117 struct ebus_rinfo *sc_rinfo;
120 #define EBUS_PCI (1 << 0)
124 struct ofw_bus_iinfo sc_iinfo;
131 static device_probe_t ebus_nexus_probe;
132 static device_attach_t ebus_nexus_attach;
133 static device_probe_t ebus_pci_probe;
134 static device_attach_t ebus_pci_attach;
135 static bus_print_child_t ebus_print_child;
136 static bus_probe_nomatch_t ebus_probe_nomatch;
137 static bus_alloc_resource_t ebus_alloc_resource;
138 static bus_activate_resource_t ebus_activate_resource;
139 static bus_adjust_resource_t ebus_adjust_resource;
140 static bus_release_resource_t ebus_release_resource;
141 static bus_setup_intr_t ebus_setup_intr;
142 static bus_get_resource_list_t ebus_get_resource_list;
143 static ofw_bus_get_devinfo_t ebus_get_devinfo;
145 static int ebus_attach(device_t dev, struct ebus_softc *sc, phandle_t node);
146 static struct ebus_devinfo *ebus_setup_dinfo(device_t dev,
147 struct ebus_softc *sc, phandle_t node);
148 static void ebus_destroy_dinfo(struct ebus_devinfo *edi);
149 static int ebus_print_res(struct ebus_devinfo *edi);
151 static devclass_t ebus_devclass;
153 static device_method_t ebus_nexus_methods[] = {
154 /* Device interface */
155 DEVMETHOD(device_probe, ebus_nexus_probe),
156 DEVMETHOD(device_attach, ebus_nexus_attach),
157 DEVMETHOD(device_shutdown, bus_generic_shutdown),
158 DEVMETHOD(device_suspend, bus_generic_suspend),
159 DEVMETHOD(device_resume, bus_generic_resume),
162 DEVMETHOD(bus_print_child, ebus_print_child),
163 DEVMETHOD(bus_probe_nomatch, ebus_probe_nomatch),
164 DEVMETHOD(bus_alloc_resource, ebus_alloc_resource),
165 DEVMETHOD(bus_activate_resource, ebus_activate_resource),
166 DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource),
167 DEVMETHOD(bus_adjust_resource, ebus_adjust_resource),
168 DEVMETHOD(bus_release_resource, ebus_release_resource),
169 DEVMETHOD(bus_setup_intr, ebus_setup_intr),
170 DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr),
171 DEVMETHOD(bus_get_resource, bus_generic_rl_get_resource),
172 DEVMETHOD(bus_get_resource_list, ebus_get_resource_list),
173 DEVMETHOD(bus_child_pnpinfo_str, ofw_bus_gen_child_pnpinfo_str),
175 /* ofw_bus interface */
176 DEVMETHOD(ofw_bus_get_devinfo, ebus_get_devinfo),
177 DEVMETHOD(ofw_bus_get_compat, ofw_bus_gen_get_compat),
178 DEVMETHOD(ofw_bus_get_model, ofw_bus_gen_get_model),
179 DEVMETHOD(ofw_bus_get_name, ofw_bus_gen_get_name),
180 DEVMETHOD(ofw_bus_get_node, ofw_bus_gen_get_node),
181 DEVMETHOD(ofw_bus_get_type, ofw_bus_gen_get_type),
186 static driver_t ebus_nexus_driver = {
189 sizeof(struct ebus_softc),
193 * NB: we rely on the interrupt controllers of the accompanying PCI-Express
194 * bridge to be registered as the nexus variant of the EBus bridges doesn't
195 * employ its own one.
197 EARLY_DRIVER_MODULE(ebus, nexus, ebus_nexus_driver, ebus_devclass, 0, 0,
199 MODULE_DEPEND(ebus, nexus, 1, 1, 1);
201 static device_method_t ebus_pci_methods[] = {
202 /* Device interface */
203 DEVMETHOD(device_probe, ebus_pci_probe),
204 DEVMETHOD(device_attach, ebus_pci_attach),
205 DEVMETHOD(device_shutdown, bus_generic_shutdown),
206 DEVMETHOD(device_suspend, bus_generic_suspend),
207 DEVMETHOD(device_resume, bus_generic_resume),
210 DEVMETHOD(bus_print_child, ebus_print_child),
211 DEVMETHOD(bus_probe_nomatch, ebus_probe_nomatch),
212 DEVMETHOD(bus_alloc_resource, ebus_alloc_resource),
213 DEVMETHOD(bus_activate_resource, bus_generic_activate_resource),
214 DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource),
215 DEVMETHOD(bus_release_resource, ebus_release_resource),
216 DEVMETHOD(bus_setup_intr, bus_generic_setup_intr),
217 DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr),
218 DEVMETHOD(bus_get_resource, bus_generic_rl_get_resource),
219 DEVMETHOD(bus_get_resource_list, ebus_get_resource_list),
220 DEVMETHOD(bus_child_pnpinfo_str, ofw_bus_gen_child_pnpinfo_str),
222 /* ofw_bus interface */
223 DEVMETHOD(ofw_bus_get_devinfo, ebus_get_devinfo),
224 DEVMETHOD(ofw_bus_get_compat, ofw_bus_gen_get_compat),
225 DEVMETHOD(ofw_bus_get_model, ofw_bus_gen_get_model),
226 DEVMETHOD(ofw_bus_get_name, ofw_bus_gen_get_name),
227 DEVMETHOD(ofw_bus_get_node, ofw_bus_gen_get_node),
228 DEVMETHOD(ofw_bus_get_type, ofw_bus_gen_get_type),
233 static driver_t ebus_pci_driver = {
236 sizeof(struct ebus_softc),
239 EARLY_DRIVER_MODULE(ebus, pci, ebus_pci_driver, ebus_devclass, 0, 0,
241 MODULE_DEPEND(ebus, pci, 1, 1, 1);
242 MODULE_VERSION(ebus, 1);
245 ebus_nexus_probe(device_t dev)
249 compat = ofw_bus_get_compat(dev);
250 if (compat != NULL && strcmp(ofw_bus_get_name(dev), "ebus") == 0 &&
251 strcmp(compat, "jbus-ebus") == 0) {
252 device_set_desc(dev, "JBus-EBus bridge");
253 return (BUS_PROBE_GENERIC);
259 ebus_pci_probe(device_t dev)
262 if (pci_get_class(dev) != PCIC_BRIDGE ||
263 pci_get_vendor(dev) != 0x108e ||
264 strcmp(ofw_bus_get_name(dev), "ebus") != 0)
267 if (pci_get_device(dev) == 0x1000)
268 device_set_desc(dev, "PCI-EBus2 bridge");
269 else if (pci_get_device(dev) == 0x1100)
270 device_set_desc(dev, "PCI-EBus3 bridge");
273 return (BUS_PROBE_GENERIC);
277 ebus_nexus_attach(device_t dev)
279 struct ebus_softc *sc;
282 sc = device_get_softc(dev);
283 node = ofw_bus_get_node(dev);
286 if (OF_getprop(node, "portid", &sc->sc_ign,
287 sizeof(sc->sc_ign)) == -1) {
288 device_printf(dev, "could not determine IGN");
293 sc->sc_nrange = OF_getprop_alloc(node, "ranges",
294 sizeof(struct ebus_nexus_ranges), &sc->sc_range);
295 if (sc->sc_nrange == -1) {
296 device_printf(dev, "could not get ranges property\n");
299 return (ebus_attach(dev, sc, node));
303 ebus_pci_attach(device_t dev)
305 struct ebus_softc *sc;
306 struct ebus_rinfo *eri;
307 struct resource *res;
308 struct isa_ranges *range;
312 sc = device_get_softc(dev);
313 sc->sc_flags |= EBUS_PCI;
315 pci_write_config(dev, PCIR_COMMAND,
316 pci_read_config(dev, PCIR_COMMAND, 2) | PCIM_CMD_SERRESPEN |
317 PCIM_CMD_PERRESPEN | PCIM_CMD_BUSMASTEREN | PCIM_CMD_MEMEN, 2);
318 pci_write_config(dev, PCIR_CACHELNSZ, 16 /* 64 bytes */, 1);
319 pci_write_config(dev, PCIR_LATTIMER, 64 /* 64 PCI cycles */, 1);
321 node = ofw_bus_get_node(dev);
322 sc->sc_nrange = OF_getprop_alloc(node, "ranges",
323 sizeof(struct isa_ranges), &sc->sc_range);
324 if (sc->sc_nrange == -1) {
325 device_printf(dev, "could not get ranges property\n");
329 sc->sc_rinfo = malloc(sizeof(*sc->sc_rinfo) * sc->sc_nrange, M_DEVBUF,
332 /* For every range, there must be a matching resource. */
333 for (rnum = 0; rnum < sc->sc_nrange; rnum++) {
334 eri = &sc->sc_rinfo[rnum];
335 range = &((struct isa_ranges *)sc->sc_range)[rnum];
336 eri->eri_rtype = ofw_isa_range_restype(range);
337 rid = PCIR_BAR(rnum);
338 res = bus_alloc_resource_any(dev, eri->eri_rtype, &rid,
342 "could not allocate range resource %d\n", rnum);
345 if (rman_get_start(res) != ISA_RANGE_PHYS(range)) {
347 "mismatch in start of range %d (0x%lx/0x%lx)\n",
348 rnum, rman_get_start(res), ISA_RANGE_PHYS(range));
351 if (rman_get_size(res) != range->size) {
353 "mismatch in size of range %d (0x%lx/0x%x)\n",
354 rnum, rman_get_size(res), range->size);
358 eri->eri_rman.rm_type = RMAN_ARRAY;
359 eri->eri_rman.rm_descr = "EBus range";
360 if (rman_init_from_resource(&eri->eri_rman, res) != 0) {
362 "could not initialize rman for range %d", rnum);
366 return (ebus_attach(dev, sc, node));
369 for (i = rnum; i >= 0; i--) {
370 eri = &sc->sc_rinfo[i];
372 rman_fini(&eri->eri_rman);
373 if (eri->eri_res != 0) {
374 bus_release_resource(dev, eri->eri_rtype,
375 PCIR_BAR(rnum), eri->eri_res);
378 free(sc->sc_rinfo, M_DEVBUF);
379 free(sc->sc_range, M_OFWPROP);
384 ebus_attach(device_t dev, struct ebus_softc *sc, phandle_t node)
386 struct ebus_devinfo *edi;
389 ofw_bus_setup_iinfo(node, &sc->sc_iinfo, sizeof(ofw_isa_intr_t));
392 * Now attach our children.
394 for (node = OF_child(node); node > 0; node = OF_peer(node)) {
395 if ((edi = ebus_setup_dinfo(dev, sc, node)) == NULL)
397 if ((cdev = device_add_child(dev, NULL, -1)) == NULL) {
398 device_printf(dev, "<%s>: device_add_child failed\n",
399 edi->edi_obdinfo.obd_name);
400 ebus_destroy_dinfo(edi);
403 device_set_ivars(cdev, edi);
405 return (bus_generic_attach(dev));
409 ebus_print_child(device_t dev, device_t child)
413 retval = bus_print_child_header(dev, child);
414 retval += ebus_print_res(device_get_ivars(child));
415 retval += bus_print_child_footer(dev, child);
420 ebus_probe_nomatch(device_t dev, device_t child)
423 device_printf(dev, "<%s>", ofw_bus_get_name(child));
424 ebus_print_res(device_get_ivars(child));
425 printf(" (no driver attached)\n");
428 static struct resource *
429 ebus_alloc_resource(device_t bus, device_t child, int type, int *rid,
430 rman_res_t start, rman_res_t end, rman_res_t count, u_int flags)
432 struct ebus_softc *sc;
433 struct resource_list *rl;
434 struct resource_list_entry *rle = NULL;
435 struct resource *res;
436 struct ebus_rinfo *eri;
437 struct ebus_nexus_ranges *enr;
438 uint64_t cend, cstart, offset;
439 int i, isdefault, passthrough, ridx;
441 isdefault = RMAN_IS_DEFAULT_RANGE(start, end);
442 passthrough = (device_get_parent(child) != bus);
443 sc = device_get_softc(bus);
444 rl = BUS_GET_RESOURCE_LIST(bus, child);
447 KASSERT(!(isdefault && passthrough),
448 ("%s: passthrough of default allocation", __func__));
450 rle = resource_list_find(rl, type, *rid);
453 KASSERT(rle->res == NULL,
454 ("%s: resource entry is busy", __func__));
457 count = ulmax(count, rle->count);
458 end = ulmax(rle->end, start + count - 1);
463 if ((sc->sc_flags & EBUS_PCI) != 0) {
465 * Map EBus ranges to PCI ranges. This may include
466 * changing the allocation type.
468 type = ofw_isa_range_map(sc->sc_range, sc->sc_nrange,
469 &start, &end, &ridx);
470 eri = &sc->sc_rinfo[ridx];
471 res = rman_reserve_resource(&eri->eri_rman, start,
472 end, count, flags & ~RF_ACTIVE, child);
475 rman_set_rid(res, *rid);
476 if ((flags & RF_ACTIVE) != 0 && bus_activate_resource(
477 child, type, *rid, res) != 0) {
478 rman_release_resource(res);
482 /* Map EBus ranges to nexus ranges. */
483 for (i = 0; i < sc->sc_nrange; i++) {
484 enr = &((struct ebus_nexus_ranges *)
486 cstart = (((uint64_t)enr->child_hi) << 32) |
488 cend = cstart + enr->size - 1;
489 if (start >= cstart && end <= cend) {
491 (((uint64_t)enr->phys_hi) << 32) |
493 start += offset - cstart;
494 end += offset - cstart;
495 res = bus_generic_alloc_resource(bus,
496 child, type, rid, start, end,
506 return (resource_list_alloc(rl, bus, child, type, rid, start,
513 ebus_activate_resource(device_t bus, device_t child, int type, int rid,
514 struct resource *res)
516 struct ebus_softc *sc;
517 struct ebus_rinfo *eri;
519 bus_space_handle_t bh;
522 sc = device_get_softc(bus);
523 if ((sc->sc_flags & EBUS_PCI) != 0 && type != SYS_RES_IRQ) {
524 for (i = 0; i < sc->sc_nrange; i++) {
525 eri = &sc->sc_rinfo[i];
526 if (rman_is_region_manager(res, &eri->eri_rman) != 0) {
527 bt = rman_get_bustag(eri->eri_res);
528 rv = bus_space_subregion(bt,
529 rman_get_bushandle(eri->eri_res),
530 rman_get_start(res) -
531 rman_get_start(eri->eri_res),
532 rman_get_size(res), &bh);
535 rman_set_bustag(res, bt);
536 rman_set_bushandle(res, bh);
537 return (rman_activate_resource(res));
542 return (bus_generic_activate_resource(bus, child, type, rid, res));
546 ebus_adjust_resource(device_t bus __unused, device_t child __unused,
547 int type __unused, struct resource *res __unused, rman_res_t start __unused,
548 rman_res_t end __unused)
555 ebus_release_resource(device_t bus, device_t child, int type, int rid,
556 struct resource *res)
558 struct ebus_softc *sc;
559 struct resource_list *rl;
560 struct resource_list_entry *rle;
563 passthrough = (device_get_parent(child) != bus);
564 rl = BUS_GET_RESOURCE_LIST(bus, child);
565 sc = device_get_softc(bus);
566 if ((sc->sc_flags & EBUS_PCI) != 0 && type != SYS_RES_IRQ) {
567 if ((rman_get_flags(res) & RF_ACTIVE) != 0 ){
568 rv = bus_deactivate_resource(child, type, rid, res);
572 rv = rman_release_resource(res);
576 rle = resource_list_find(rl, type, rid);
578 ("%s: resource entry not found!", __func__));
579 KASSERT(rle->res != NULL,
580 ("%s: resource entry is not busy", __func__));
585 return (resource_list_release(rl, bus, child, type, rid, res));
589 ebus_setup_intr(device_t dev, device_t child, struct resource *ires,
590 int flags, driver_filter_t *filt, driver_intr_t *intr, void *arg,
594 struct ebus_softc *sc;
597 sc = device_get_softc(dev);
598 if ((sc->sc_flags & EBUS_PCI) == 0) {
600 * Make sure the vector is fully specified. This isn't
601 * necessarily the case with the PCI variant.
603 vec = rman_get_start(ires);
604 if (INTIGN(vec) != sc->sc_ign) {
606 "invalid interrupt vector 0x%lx\n", vec);
611 * As we rely on the interrupt controllers of the
612 * accompanying PCI-Express bridge ensure at least
613 * something is registered for this vector.
615 if (intr_vectors[vec].iv_ic == NULL) {
617 "invalid interrupt controller for vector 0x%lx\n",
623 return (bus_generic_setup_intr(dev, child, ires, flags, filt, intr,
627 static struct resource_list *
628 ebus_get_resource_list(device_t dev, device_t child)
630 struct ebus_devinfo *edi;
632 edi = device_get_ivars(child);
633 return (&edi->edi_rl);
636 static const struct ofw_bus_devinfo *
637 ebus_get_devinfo(device_t bus, device_t dev)
639 struct ebus_devinfo *edi;
641 edi = device_get_ivars(dev);
642 return (&edi->edi_obdinfo);
645 static struct ebus_devinfo *
646 ebus_setup_dinfo(device_t dev, struct ebus_softc *sc, phandle_t node)
648 struct isa_regs reg, *regs;
649 ofw_isa_intr_t intr, *intrs;
650 struct ebus_devinfo *edi;
653 int i, nintr, nreg, rv;
655 edi = malloc(sizeof(*edi), M_DEVBUF, M_ZERO | M_WAITOK);
656 if (ofw_bus_gen_setup_devinfo(&edi->edi_obdinfo, node) != 0) {
660 resource_list_init(&edi->edi_rl);
661 nreg = OF_getprop_alloc(node, "reg", sizeof(*regs), (void **)®s);
663 device_printf(dev, "<%s>: incomplete\n",
664 edi->edi_obdinfo.obd_name);
665 ebus_destroy_dinfo(edi);
668 for (i = 0; i < nreg; i++) {
669 start = ISA_REG_PHYS(regs + i);
670 (void)resource_list_add(&edi->edi_rl, SYS_RES_MEMORY, i,
671 start, start + regs[i].size - 1, regs[i].size);
673 free(regs, M_OFWPROP);
675 nintr = OF_getprop_alloc(node, "interrupts", sizeof(*intrs),
679 for (i = 0; i < nintr; i++) {
681 if ((sc->sc_flags & EBUS_PCI) != 0) {
682 rintr = ofw_isa_route_intr(dev, node, &sc->sc_iinfo,
686 rv = ofw_bus_lookup_imap(node, &sc->sc_iinfo, ®,
687 sizeof(reg), &intr, sizeof(intr), &rintr,
688 sizeof(rintr), NULL);
691 rintr = INTMAP_VEC(sc->sc_ign, rintr);
694 if ((sc->sc_flags & EBUS_PCI) == 0 ? rv == 0 :
695 rintr == PCI_INVALID_IRQ) {
697 "<%s>: could not map EBus interrupt %d\n",
698 edi->edi_obdinfo.obd_name, intrs[i]);
701 (void)resource_list_add(&edi->edi_rl, SYS_RES_IRQ, i, rintr,
704 free(intrs, M_OFWPROP);
709 ebus_destroy_dinfo(struct ebus_devinfo *edi)
712 resource_list_free(&edi->edi_rl);
713 ofw_bus_gen_destroy_devinfo(&edi->edi_obdinfo);
718 ebus_print_res(struct ebus_devinfo *edi)
723 retval += resource_list_print_type(&edi->edi_rl, "addr", SYS_RES_MEMORY,
725 retval += resource_list_print_type(&edi->edi_rl, "irq", SYS_RES_IRQ,