ofwbus.c revision 261351
15962Sgoetz/*- 211020Scoleenp * Copyright 1998 Massachusetts Institute of Technology 310049Sgoetz * Copyright 2001 by Thomas Moestl <tmm@FreeBSD.org>. 45962Sgoetz * Copyright 2006 by Marius Strobl <marius@FreeBSD.org>. 55962Sgoetz * All rights reserved. 65962Sgoetz * 75962Sgoetz * Permission to use, copy, modify, and distribute this software and 85962Sgoetz * its documentation for any purpose and without fee is hereby 95962Sgoetz * granted, provided that both the above copyright notice and this 105962Sgoetz * permission notice appear in all copies, that both the above 115962Sgoetz * copyright notice and this permission notice appear in all 125962Sgoetz * supporting documentation, and that the name of M.I.T. not be used 135962Sgoetz * in advertising or publicity pertaining to distribution of the 145962Sgoetz * software without specific, written prior permission. M.I.T. makes 155962Sgoetz * no representations about the suitability of this software for any 165962Sgoetz * purpose. It is provided "as is" without express or implied 175962Sgoetz * warranty. 185962Sgoetz * 195962Sgoetz * THIS SOFTWARE IS PROVIDED BY M.I.T. ``AS IS''. M.I.T. DISCLAIMS 205962Sgoetz * ALL EXPRESS OR IMPLIED WARRANTIES WITH REGARD TO THIS SOFTWARE, 215962Sgoetz * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 225962Sgoetz * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT 235962Sgoetz * SHALL M.I.T. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 245962Sgoetz * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 255962Sgoetz * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF 265962Sgoetz * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 275962Sgoetz * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 285962Sgoetz * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 295962Sgoetz * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 305962Sgoetz * SUCH DAMAGE. 315962Sgoetz * 325962Sgoetz * from: FreeBSD: src/sys/i386/i386/nexus.c,v 1.43 2001/02/09 335962Sgoetz */ 345962Sgoetz 355962Sgoetz#include <sys/cdefs.h> 365962Sgoetz__FBSDID("$FreeBSD: head/sys/dev/ofw/ofw_nexus.c 261351 2014-02-01 17:17:35Z nwhitehorn $"); 375962Sgoetz 385962Sgoetz#include <sys/param.h> 395962Sgoetz#include <sys/systm.h> 405962Sgoetz#include <sys/bus.h> 415962Sgoetz#include <sys/kernel.h> 425962Sgoetz#include <sys/malloc.h> 435962Sgoetz#include <sys/module.h> 445962Sgoetz#include <sys/pcpu.h> 455962Sgoetz#include <sys/rman.h> 465962Sgoetz 475962Sgoetz#include <vm/vm.h> 486108Sgoetz#include <vm/pmap.h> 495962Sgoetz 505962Sgoetz#include <dev/ofw/ofw_bus.h> 515962Sgoetz#include <dev/ofw/ofw_bus_subr.h> 525962Sgoetz#include <dev/ofw/ofw_nexus.h> 535962Sgoetz#include <dev/ofw/openfirm.h> 545962Sgoetz 555962Sgoetz#include <machine/bus.h> 565962Sgoetz#include <machine/resource.h> 575962Sgoetz 585962Sgoetz/* 595962Sgoetz * The nexus (which is a pseudo-bus actually) iterates over the nodes that 605962Sgoetz * hang from the Open Firmware root node and adds them as devices to this bus 615962Sgoetz * (except some special nodes which are excluded) so that drivers can be 625962Sgoetz * attached to them. 635962Sgoetz * 645962Sgoetz * Additionally, interrupt setup/teardown and some resource management are 655962Sgoetz * done at this level. 665962Sgoetz * 675962Sgoetz */ 685962Sgoetz 695962Sgoetzstruct nexus_devinfo { 705962Sgoetz struct ofw_bus_devinfo ndi_obdinfo; 715962Sgoetz struct resource_list ndi_rl; 725962Sgoetz}; 735962Sgoetz 745962Sgoetzstatic device_probe_t nexus_probe; 756108Sgoetzstatic device_attach_t nexus_attach; 765962Sgoetzstatic bus_print_child_t nexus_print_child; 775962Sgoetzstatic bus_add_child_t nexus_add_child; 785962Sgoetzstatic bus_probe_nomatch_t nexus_probe_nomatch; 795962Sgoetzstatic bus_alloc_resource_t nexus_alloc_resource; 805962Sgoetzstatic bus_adjust_resource_t nexus_adjust_resource; 815962Sgoetzstatic bus_release_resource_t nexus_release_resource; 825962Sgoetzstatic bus_get_resource_list_t nexus_get_resource_list; 835962Sgoetzstatic ofw_bus_get_devinfo_t nexus_get_devinfo; 845962Sgoetz 855962Sgoetzstatic int nexus_inlist(const char *, const char *const *); 865962Sgoetzstatic struct nexus_devinfo * nexus_setup_dinfo(device_t, phandle_t); 875962Sgoetzstatic void nexus_destroy_dinfo(struct nexus_devinfo *); 885962Sgoetzstatic int nexus_print_res(struct nexus_devinfo *); 895962Sgoetz 905962Sgoetzstatic device_method_t nexus_methods[] = { 915962Sgoetz /* Device interface */ 925962Sgoetz DEVMETHOD(device_probe, nexus_probe), 936108Sgoetz DEVMETHOD(device_attach, nexus_attach), 946108Sgoetz DEVMETHOD(device_detach, bus_generic_detach), 955962Sgoetz DEVMETHOD(device_shutdown, bus_generic_shutdown), 965962Sgoetz DEVMETHOD(device_suspend, bus_generic_suspend), 975962Sgoetz DEVMETHOD(device_resume, bus_generic_resume), 986108Sgoetz 995962Sgoetz /* Bus interface */ 1005962Sgoetz DEVMETHOD(bus_print_child, nexus_print_child), 1016108Sgoetz DEVMETHOD(bus_probe_nomatch, nexus_probe_nomatch), 1025962Sgoetz DEVMETHOD(bus_read_ivar, bus_generic_read_ivar), 1035962Sgoetz DEVMETHOD(bus_write_ivar, bus_generic_write_ivar), 1045962Sgoetz DEVMETHOD(bus_add_child, nexus_add_child), 1055962Sgoetz DEVMETHOD(bus_child_pnpinfo_str, ofw_bus_gen_child_pnpinfo_str), 1065962Sgoetz DEVMETHOD(bus_alloc_resource, nexus_alloc_resource), 1075962Sgoetz DEVMETHOD(bus_adjust_resource, nexus_adjust_resource), 1086108Sgoetz DEVMETHOD(bus_release_resource, nexus_release_resource), 1095962Sgoetz DEVMETHOD(bus_set_resource, bus_generic_rl_set_resource), 1105962Sgoetz DEVMETHOD(bus_get_resource, bus_generic_rl_get_resource), 1116108Sgoetz DEVMETHOD(bus_get_resource_list, nexus_get_resource_list), 1125962Sgoetz 1135962Sgoetz /* ofw_bus interface */ 1145962Sgoetz DEVMETHOD(ofw_bus_get_devinfo, nexus_get_devinfo), 1155962Sgoetz DEVMETHOD(ofw_bus_get_compat, ofw_bus_gen_get_compat), 1165962Sgoetz DEVMETHOD(ofw_bus_get_model, ofw_bus_gen_get_model), 1175962Sgoetz DEVMETHOD(ofw_bus_get_name, ofw_bus_gen_get_name), 1185962Sgoetz DEVMETHOD(ofw_bus_get_node, ofw_bus_gen_get_node), 1195962Sgoetz DEVMETHOD(ofw_bus_get_type, ofw_bus_gen_get_type), 1205962Sgoetz 1215962Sgoetz DEVMETHOD_END 1225962Sgoetz}; 1235962Sgoetz 1246108SgoetzDEFINE_CLASS_0(ofw_nexus, ofw_nexus_driver, nexus_methods, 1255962Sgoetz sizeof(struct ofw_nexus_softc)); 1265962SgoetzMODULE_VERSION(ofw_nexus, 1); 1275962Sgoetz 1286108Sgoetzstatic const char *const nexus_excl_name[] = { 1295962Sgoetz "FJSV,system", 1306108Sgoetz "aliases", 1315962Sgoetz "associations", 1325962Sgoetz "chosen", 1335962Sgoetz "cmp", 1345962Sgoetz "counter-timer", /* No separate device; handled by psycho/sbus */ 1355962Sgoetz "failsafe", 1365962Sgoetz "memory", 1375962Sgoetz "openprom", 1386108Sgoetz "options", 1395962Sgoetz "packages", 1405962Sgoetz "physical-memory", 1416108Sgoetz "rsc", 1426108Sgoetz "sgcn", 1435962Sgoetz "todsg", 1445962Sgoetz "virtual-memory", 1455962Sgoetz NULL 1465962Sgoetz}; 1475962Sgoetz 1485962Sgoetzstatic const char *const nexus_excl_type[] = { 1495962Sgoetz "core", 1505962Sgoetz "cpu", 1515962Sgoetz NULL 1525962Sgoetz}; 1535962Sgoetz 1545962Sgoetzstatic int 1555962Sgoetznexus_inlist(const char *name, const char *const *list) 1565962Sgoetz{ 1575962Sgoetz int i; 1585962Sgoetz 1595962Sgoetz if (name == NULL) 1605962Sgoetz return (0); 1615962Sgoetz for (i = 0; list[i] != NULL; i++) 1625962Sgoetz if (strcmp(name, list[i]) == 0) 1635962Sgoetz return (1); 1645962Sgoetz return (0); 1655962Sgoetz} 1665962Sgoetz 1675962Sgoetz#define NEXUS_EXCLUDED(name, type) \ 1685962Sgoetz (nexus_inlist((name), nexus_excl_name) || \ 1695962Sgoetz ((type) != NULL && nexus_inlist((type), nexus_excl_type))) 1705962Sgoetz 1715962Sgoetzstatic int 1725962Sgoetznexus_probe(device_t dev) 1735962Sgoetz{ 1745962Sgoetz 1755962Sgoetz /* Nexus does always match. */ 1765962Sgoetz device_set_desc(dev, "Open Firmware Nexus device"); 1775962Sgoetz return (0); 1785962Sgoetz} 1795962Sgoetz 1805962Sgoetzstatic int 1815962Sgoetznexus_attach(device_t dev) 1825962Sgoetz{ 1835962Sgoetz struct nexus_devinfo *ndi; 1845962Sgoetz struct ofw_nexus_softc *sc; 1855962Sgoetz device_t cdev; 1865962Sgoetz phandle_t node; 1875962Sgoetz 1885962Sgoetz sc = device_get_softc(dev); 1895962Sgoetz 1905962Sgoetz node = OF_peer(0); 1915962Sgoetz 1925962Sgoetz sc->sc_intr_rman.rm_type = RMAN_ARRAY; 1935962Sgoetz sc->sc_intr_rman.rm_descr = "Interrupts"; 1945962Sgoetz sc->sc_mem_rman.rm_type = RMAN_ARRAY; 1959832Sgoetz sc->sc_mem_rman.rm_descr = "Device Memory"; 1969832Sgoetz if (rman_init(&sc->sc_intr_rman) != 0 || 1979832Sgoetz rman_init(&sc->sc_mem_rman) != 0 || 1989832Sgoetz rman_manage_region(&sc->sc_intr_rman, 0, ~0) != 0 || 1999832Sgoetz rman_manage_region(&sc->sc_mem_rman, 0, BUS_SPACE_MAXADDR) != 0) 2006118Sgoetz panic("%s: failed to set up rmans.", __func__); 2019832Sgoetz 2029832Sgoetz /* 2039832Sgoetz * Allow devices to identify. 2049832Sgoetz */ 2059832Sgoetz bus_generic_probe(dev); 2069832Sgoetz 2079832Sgoetz /* 2089832Sgoetz * If no Open Firmware, bail early 2099832Sgoetz */ 2106118Sgoetz if (node == -1) 2119832Sgoetz return (bus_generic_attach(dev)); 2126118Sgoetz 2136118Sgoetz /* 2146118Sgoetz * Some important numbers 2156118Sgoetz */ 2166118Sgoetz sc->acells = 2; 2179832Sgoetz OF_getencprop(node, "#address-cells", &sc->acells, sizeof(sc->acells)); 2186118Sgoetz sc->scells = 1; 2196118Sgoetz OF_getencprop(node, "#size-cells", &sc->scells, sizeof(sc->scells)); 2206118Sgoetz 2216118Sgoetz /* 2226118Sgoetz * Now walk the OFW tree and attach top-level devices. 2236118Sgoetz */ 2246118Sgoetz for (node = OF_child(node); node > 0; node = OF_peer(node)) { 2256118Sgoetz if ((ndi = nexus_setup_dinfo(dev, node)) == NULL) 2266118Sgoetz continue; 2279832Sgoetz cdev = device_add_child(dev, NULL, -1); 2289832Sgoetz if (cdev == NULL) { 2296118Sgoetz device_printf(dev, "<%s>: device_add_child failed\n", 2309832Sgoetz ndi->ndi_obdinfo.obd_name); 2319832Sgoetz nexus_destroy_dinfo(ndi); 2329832Sgoetz continue; 2339832Sgoetz } 2349832Sgoetz device_set_ivars(cdev, ndi); 2359832Sgoetz } 2369832Sgoetz return (bus_generic_attach(dev)); 2376118Sgoetz} 2386118Sgoetz 2396118Sgoetzstatic device_t 2406118Sgoetznexus_add_child(device_t dev, u_int order, const char *name, int unit) 2416118Sgoetz{ 2426118Sgoetz device_t cdev; 2436118Sgoetz struct nexus_devinfo *ndi; 2446118Sgoetz 2456118Sgoetz cdev = device_add_child_ordered(dev, order, name, unit); 2466118Sgoetz if (cdev == NULL) 2476118Sgoetz return (NULL); 2486118Sgoetz 2496118Sgoetz ndi = malloc(sizeof(*ndi), M_DEVBUF, M_WAITOK | M_ZERO); 2506118Sgoetz ndi->ndi_obdinfo.obd_node = -1; 2516118Sgoetz resource_list_init(&ndi->ndi_rl); 2526118Sgoetz device_set_ivars(cdev, ndi); 2536118Sgoetz 2546118Sgoetz return (cdev); 2556118Sgoetz} 2566118Sgoetz 2576118Sgoetzstatic int 2586118Sgoetznexus_print_child(device_t bus, device_t child) 2596118Sgoetz{ 26012259Smdoerr int rv; 2616118Sgoetz 2626118Sgoetz rv = bus_print_child_header(bus, child); 26311020Scoleenp rv += nexus_print_res(device_get_ivars(child)); 2646118Sgoetz rv += bus_print_child_footer(bus, child); 2656118Sgoetz return (rv); 2666118Sgoetz} 2676118Sgoetz 2686118Sgoetzstatic void 2696118Sgoetznexus_probe_nomatch(device_t bus, device_t child) 2706118Sgoetz{ 2716118Sgoetz const char *name, *type; 2726118Sgoetz 2736118Sgoetz if (!bootverbose) 2746118Sgoetz return; 2756118Sgoetz 2766118Sgoetz name = ofw_bus_get_name(child); 2776118Sgoetz type = ofw_bus_get_type(child); 2786118Sgoetz 2796118Sgoetz device_printf(bus, "<%s>", 2806118Sgoetz name != NULL ? name : "unknown"); 2816118Sgoetz nexus_print_res(device_get_ivars(child)); 2826118Sgoetz printf(" type %s (no driver attached)\n", 2836118Sgoetz type != NULL ? type : "unknown"); 2846118Sgoetz} 2855962Sgoetz 2865962Sgoetzstatic struct resource * 2875962Sgoetznexus_alloc_resource(device_t bus, device_t child, int type, int *rid, 2885962Sgoetz u_long start, u_long end, u_long count, u_int flags) 2895962Sgoetz{ 2905962Sgoetz struct ofw_nexus_softc *sc; 2915962Sgoetz struct rman *rm; 2925962Sgoetz struct resource *rv; 2935962Sgoetz struct resource_list_entry *rle; 2945962Sgoetz int isdefault, passthrough; 2955962Sgoetz 2965962Sgoetz isdefault = (start == 0UL && end == ~0UL); 2975962Sgoetz passthrough = (device_get_parent(child) != bus); 2985962Sgoetz sc = device_get_softc(bus); 2995962Sgoetz rle = NULL; 3005962Sgoetz 3015962Sgoetz if (!passthrough && isdefault) { 3025962Sgoetz rle = resource_list_find(BUS_GET_RESOURCE_LIST(bus, child), 3035962Sgoetz type, *rid); 3045962Sgoetz if (rle == NULL) 3055962Sgoetz return (NULL); 3065962Sgoetz if (rle->res != NULL) 3075962Sgoetz panic("%s: resource entry is busy", __func__); 3085962Sgoetz start = rle->start; 3095962Sgoetz count = ulmax(count, rle->count); 3105962Sgoetz end = ulmax(rle->end, start + count - 1); 3115962Sgoetz } 3125962Sgoetz 3135962Sgoetz switch (type) { 3145962Sgoetz case SYS_RES_IRQ: 3155962Sgoetz rm = &sc->sc_intr_rman; 3165962Sgoetz break; 3175962Sgoetz case SYS_RES_MEMORY: 3185962Sgoetz rm = &sc->sc_mem_rman; 3195962Sgoetz break; 3205962Sgoetz default: 3215962Sgoetz return (NULL); 3225962Sgoetz } 3235962Sgoetz 3245962Sgoetz rv = rman_reserve_resource(rm, start, end, count, flags & ~RF_ACTIVE, 3255962Sgoetz child); 3265962Sgoetz if (rv == NULL) 3275962Sgoetz return (NULL); 3285962Sgoetz rman_set_rid(rv, *rid); 3295962Sgoetz 3305962Sgoetz if ((flags & RF_ACTIVE) != 0 && bus_activate_resource(child, type, 3315962Sgoetz *rid, rv) != 0) { 3325962Sgoetz rman_release_resource(rv); 3335962Sgoetz return (NULL); 3345962Sgoetz } 3355962Sgoetz 3365962Sgoetz if (!passthrough && rle != NULL) { 3375962Sgoetz rle->res = rv; 3385962Sgoetz rle->start = rman_get_start(rv); 3395962Sgoetz rle->end = rman_get_end(rv); 3405962Sgoetz rle->count = rle->end - rle->start + 1; 3415962Sgoetz } 3425962Sgoetz 3435962Sgoetz return (rv); 3445962Sgoetz} 3455962Sgoetz 3465962Sgoetzstatic int 3475962Sgoetznexus_adjust_resource(device_t bus, device_t child __unused, int type, 3485962Sgoetz struct resource *r, u_long start, u_long end) 3495962Sgoetz{ 3505962Sgoetz struct ofw_nexus_softc *sc; 3515962Sgoetz struct rman *rm; 3525962Sgoetz device_t nexus; 3535962Sgoetz 3545962Sgoetz nexus = bus; 3555962Sgoetz while (strcmp(device_get_name(device_get_parent(nexus)), "root") != 0) 3565962Sgoetz nexus = device_get_parent(nexus); 3575962Sgoetz sc = device_get_softc(nexus); 3585962Sgoetz switch (type) { 3595962Sgoetz case SYS_RES_IRQ: 3605962Sgoetz rm = &sc->sc_intr_rman; 3615962Sgoetz break; 3625962Sgoetz case SYS_RES_MEMORY: 3635962Sgoetz rm = &sc->sc_mem_rman; 3645962Sgoetz break; 3655962Sgoetz default: 3665962Sgoetz return (EINVAL); 3675962Sgoetz } 3685962Sgoetz if (rm == NULL) 3695962Sgoetz return (ENXIO); 3705962Sgoetz if (rman_is_region_manager(r, rm) == 0) 3715962Sgoetz return (EINVAL); 3725962Sgoetz return (rman_adjust_resource(r, start, end)); 3735962Sgoetz} 3745962Sgoetz 3755962Sgoetzstatic int 3765962Sgoetznexus_release_resource(device_t bus __unused, device_t child, int type, 3775962Sgoetz int rid, struct resource *r) 3785962Sgoetz{ 3795962Sgoetz int error; 3805962Sgoetz 3816108Sgoetz if ((rman_get_flags(r) & RF_ACTIVE) != 0) { 3826108Sgoetz error = bus_deactivate_resource(child, type, rid, r); 3835962Sgoetz if (error) 3845962Sgoetz return (error); 3855962Sgoetz } 3865962Sgoetz return (rman_release_resource(r)); 3875962Sgoetz} 3885962Sgoetz 3895962Sgoetzstatic struct resource_list * 3905962Sgoetznexus_get_resource_list(device_t bus __unused, device_t child) 3915962Sgoetz{ 3925962Sgoetz struct nexus_devinfo *ndi; 3935962Sgoetz 3945962Sgoetz ndi = device_get_ivars(child); 3955962Sgoetz return (&ndi->ndi_rl); 3965962Sgoetz} 3975962Sgoetz 3985962Sgoetzstatic const struct ofw_bus_devinfo * 3995962Sgoetznexus_get_devinfo(device_t bus __unused, device_t child) 4005962Sgoetz{ 4015962Sgoetz struct nexus_devinfo *ndi; 4025962Sgoetz 4035962Sgoetz ndi = device_get_ivars(child); 4046118Sgoetz return (&ndi->ndi_obdinfo); 4056118Sgoetz} 4066118Sgoetz 4076118Sgoetzstatic struct nexus_devinfo * 4086118Sgoetznexus_setup_dinfo(device_t dev, phandle_t node) 4096118Sgoetz{ 4106118Sgoetz struct ofw_nexus_softc *sc; 4115962Sgoetz struct nexus_devinfo *ndi; 4125962Sgoetz uint32_t *reg, *intr, icells; 4135962Sgoetz uint64_t phys, size; 4145962Sgoetz phandle_t iparent; 4155962Sgoetz int i, j; 4165962Sgoetz int nintr; 4175962Sgoetz int nreg; 4185962Sgoetz 4195962Sgoetz sc = device_get_softc(dev); 4205962Sgoetz 4215962Sgoetz ndi = malloc(sizeof(*ndi), M_DEVBUF, M_WAITOK | M_ZERO); 4225962Sgoetz if (ofw_bus_gen_setup_devinfo(&ndi->ndi_obdinfo, node) != 0) { 4235962Sgoetz free(ndi, M_DEVBUF); 4245962Sgoetz return (NULL); 4255962Sgoetz } 4265962Sgoetz if (NEXUS_EXCLUDED(ndi->ndi_obdinfo.obd_name, 4275962Sgoetz ndi->ndi_obdinfo.obd_type)) { 4285962Sgoetz ofw_bus_gen_destroy_devinfo(&ndi->ndi_obdinfo); 4295962Sgoetz free(ndi, M_DEVBUF); 4305962Sgoetz return (NULL); 4315962Sgoetz } 4325962Sgoetz 4335962Sgoetz resource_list_init(&ndi->ndi_rl); 4345962Sgoetz nreg = OF_getencprop_alloc(node, "reg", sizeof(*reg), (void **)®); 435 if (nreg == -1) 436 nreg = 0; 437 if (nreg % (sc->acells + sc->scells) != 0) { 438 if (bootverbose) 439 device_printf(dev, "Malformed reg property on <%s>\n", 440 ndi->ndi_obdinfo.obd_name); 441 nreg = 0; 442 } 443 444 for (i = 0; i < nreg; i += sc->acells + sc->scells) { 445 phys = size = 0; 446 for (j = 0; j < sc->acells; j++) { 447 phys <<= 32; 448 phys |= reg[i + j]; 449 } 450 for (j = 0; j < sc->scells; j++) { 451 size <<= 32; 452 size |= reg[i + sc->acells + j]; 453 } 454 /* Skip the dummy reg property of glue devices like ssm(4). */ 455 if (size != 0) 456 resource_list_add(&ndi->ndi_rl, SYS_RES_MEMORY, i, 457 phys, phys + size - 1, size); 458 } 459 free(reg, M_OFWPROP); 460 461 nintr = OF_getencprop_alloc(node, "interrupts", sizeof(*intr), 462 (void **)&intr); 463 if (nintr > 0) { 464 iparent = 0; 465 OF_searchencprop(node, "interrupt-parent", &iparent, 466 sizeof(iparent)); 467 OF_searchencprop(OF_xref_phandle(iparent), "#interrupt-cells", 468 &icells, sizeof(icells)); 469 for (i = 0; i < nintr; i+= icells) { 470 intr[i] = ofw_bus_map_intr(dev, iparent, icells, 471 &intr[i]); 472 resource_list_add(&ndi->ndi_rl, SYS_RES_IRQ, i, intr[i], 473 intr[i], 1); 474 } 475 free(intr, M_OFWPROP); 476 } 477 478 return (ndi); 479} 480 481static void 482nexus_destroy_dinfo(struct nexus_devinfo *ndi) 483{ 484 485 resource_list_free(&ndi->ndi_rl); 486 ofw_bus_gen_destroy_devinfo(&ndi->ndi_obdinfo); 487 free(ndi, M_DEVBUF); 488} 489 490static int 491nexus_print_res(struct nexus_devinfo *ndi) 492{ 493 int rv; 494 495 rv = 0; 496 rv += resource_list_print_type(&ndi->ndi_rl, "mem", SYS_RES_MEMORY, 497 "%#lx"); 498 rv += resource_list_print_type(&ndi->ndi_rl, "irq", SYS_RES_IRQ, 499 "%ld"); 500 return (rv); 501} 502 503