nexus.c revision 207240
1139825Simp/*- 286227Stmm * Copyright 1998 Massachusetts Institute of Technology 3128776Stmm * Copyright 2001 by Thomas Moestl <tmm@FreeBSD.org>. 4167308Smarius * Copyright 2006 by Marius Strobl <marius@FreeBSD.org>. 5128776Stmm * All rights reserved. 686227Stmm * 786227Stmm * Permission to use, copy, modify, and distribute this software and 886227Stmm * its documentation for any purpose and without fee is hereby 986227Stmm * granted, provided that both the above copyright notice and this 1086227Stmm * permission notice appear in all copies, that both the above 1186227Stmm * copyright notice and this permission notice appear in all 1286227Stmm * supporting documentation, and that the name of M.I.T. not be used 1386227Stmm * in advertising or publicity pertaining to distribution of the 1486227Stmm * software without specific, written prior permission. M.I.T. makes 1586227Stmm * no representations about the suitability of this software for any 1686227Stmm * purpose. It is provided "as is" without express or implied 1786227Stmm * warranty. 18128776Stmm * 1986227Stmm * THIS SOFTWARE IS PROVIDED BY M.I.T. ``AS IS''. M.I.T. DISCLAIMS 2086227Stmm * ALL EXPRESS OR IMPLIED WARRANTIES WITH REGARD TO THIS SOFTWARE, 2186227Stmm * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 2286227Stmm * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT 2386227Stmm * SHALL M.I.T. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 2486227Stmm * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 2586227Stmm * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF 2686227Stmm * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 2786227Stmm * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 2886227Stmm * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 2986227Stmm * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 3086227Stmm * SUCH DAMAGE. 3186227Stmm * 3286227Stmm * from: FreeBSD: src/sys/i386/i386/nexus.c,v 1.43 2001/02/09 3386227Stmm */ 3486227Stmm 35146474Smarius#include <sys/cdefs.h> 36146474Smarius__FBSDID("$FreeBSD: head/sys/sparc64/sparc64/nexus.c 207240 2010-04-26 18:44:30Z marius $"); 37146474Smarius 3886227Stmm#include <sys/param.h> 3986227Stmm#include <sys/systm.h> 4086227Stmm#include <sys/bus.h> 4186227Stmm#include <sys/kernel.h> 4286227Stmm#include <sys/malloc.h> 43130068Sphk#include <sys/module.h> 44204152Smarius#include <sys/pcpu.h> 4586227Stmm 46167308Smarius#include <dev/ofw/ofw_bus.h> 47167308Smarius#include <dev/ofw/ofw_bus_subr.h> 4886227Stmm#include <dev/ofw/openfirm.h> 4986227Stmm 5086227Stmm#include <machine/bus.h> 51167308Smarius#include <machine/bus_common.h> 5286227Stmm#include <machine/intr_machdep.h> 53203844Smarius#include <machine/nexusvar.h> 54167308Smarius#include <machine/ofw_nexus.h> 5586227Stmm#include <machine/resource.h> 56167308Smarius#include <machine/ver.h> 5786227Stmm 5886227Stmm#include <sys/rman.h> 5986227Stmm 6086227Stmm/* 6186227Stmm * The nexus (which is a pseudo-bus actually) iterates over the nodes that 62133862Smarius * hang from the Open Firmware root node and adds them as devices to this bus 6386227Stmm * (except some special nodes which are excluded) so that drivers can be 64128776Stmm * attached to them. 6586227Stmm * 6686227Stmm * Additionally, interrupt setup/teardown and some resource management are 6786227Stmm * done at this level. 6886227Stmm * 6986227Stmm * Maybe this code should get into dev/ofw to some extent, as some of it should 70133862Smarius * work for all Open Firmware based machines... 7186227Stmm */ 7286227Stmm 7386227Stmmstruct nexus_devinfo { 74167308Smarius struct ofw_bus_devinfo ndi_obdinfo; 75167308Smarius struct resource_list ndi_rl; 7686227Stmm}; 7786227Stmm 7888823Stmmstruct nexus_softc { 7988823Stmm struct rman sc_intr_rman; 8088823Stmm struct rman sc_mem_rman; 8188823Stmm}; 8288823Stmm 83128776Stmmstatic device_probe_t nexus_probe; 84128776Stmmstatic device_attach_t nexus_attach; 85167308Smariusstatic bus_print_child_t nexus_print_child; 86146474Smariusstatic bus_add_child_t nexus_add_child; 87128776Stmmstatic bus_probe_nomatch_t nexus_probe_nomatch; 88128776Stmmstatic bus_setup_intr_t nexus_setup_intr; 89128776Stmmstatic bus_teardown_intr_t nexus_teardown_intr; 90128776Stmmstatic bus_alloc_resource_t nexus_alloc_resource; 91128776Stmmstatic bus_activate_resource_t nexus_activate_resource; 92128776Stmmstatic bus_deactivate_resource_t nexus_deactivate_resource; 93128776Stmmstatic bus_release_resource_t nexus_release_resource; 94167308Smariusstatic bus_get_resource_list_t nexus_get_resource_list; 95200948Smarius#ifdef SMP 96200948Smariusstatic bus_bind_intr_t nexus_bind_intr; 97200948Smarius#endif 98200948Smariusstatic bus_describe_intr_t nexus_describe_intr; 99167308Smariusstatic bus_get_dma_tag_t nexus_get_dma_tag; 100167308Smariusstatic ofw_bus_get_devinfo_t nexus_get_devinfo; 10186227Stmm 102185133Smariusstatic int nexus_inlist(const char *, const char *const *); 103167308Smariusstatic struct nexus_devinfo * nexus_setup_dinfo(device_t, phandle_t); 104167308Smariusstatic void nexus_destroy_dinfo(struct nexus_devinfo *); 105167308Smariusstatic int nexus_print_res(struct nexus_devinfo *); 106167308Smarius 10786227Stmmstatic device_method_t nexus_methods[] = { 10886227Stmm /* Device interface */ 10986227Stmm DEVMETHOD(device_probe, nexus_probe), 110128776Stmm DEVMETHOD(device_attach, nexus_attach), 11186227Stmm DEVMETHOD(device_detach, bus_generic_detach), 11286227Stmm DEVMETHOD(device_shutdown, bus_generic_shutdown), 11386227Stmm DEVMETHOD(device_suspend, bus_generic_suspend), 11486227Stmm DEVMETHOD(device_resume, bus_generic_resume), 11586227Stmm 116167308Smarius /* Bus interface */ 117167308Smarius DEVMETHOD(bus_print_child, nexus_print_child), 118167308Smarius DEVMETHOD(bus_probe_nomatch, nexus_probe_nomatch), 119167308Smarius DEVMETHOD(bus_read_ivar, bus_generic_read_ivar), 120167308Smarius DEVMETHOD(bus_write_ivar, bus_generic_write_ivar), 121146474Smarius DEVMETHOD(bus_add_child, nexus_add_child), 12286227Stmm DEVMETHOD(bus_alloc_resource, nexus_alloc_resource), 12386227Stmm DEVMETHOD(bus_activate_resource, nexus_activate_resource), 12486227Stmm DEVMETHOD(bus_deactivate_resource, nexus_deactivate_resource), 12586227Stmm DEVMETHOD(bus_release_resource, nexus_release_resource), 126167308Smarius DEVMETHOD(bus_setup_intr, nexus_setup_intr), 127167308Smarius DEVMETHOD(bus_teardown_intr, nexus_teardown_intr), 128190099Smarius DEVMETHOD(bus_set_resource, bus_generic_rl_set_resource), 129190099Smarius DEVMETHOD(bus_get_resource, bus_generic_rl_get_resource), 130190099Smarius DEVMETHOD(bus_get_resource_list, nexus_get_resource_list), 131178443Smarius#ifdef SMP 132178443Smarius DEVMETHOD(bus_bind_intr, nexus_bind_intr), 133178443Smarius#endif 134200948Smarius DEVMETHOD(bus_describe_intr, nexus_describe_intr), 135167308Smarius DEVMETHOD(bus_get_dma_tag, nexus_get_dma_tag), 13686227Stmm 137167308Smarius /* ofw_bus interface */ 138167308Smarius DEVMETHOD(ofw_bus_get_devinfo, nexus_get_devinfo), 139167308Smarius DEVMETHOD(ofw_bus_get_compat, ofw_bus_gen_get_compat), 140167308Smarius DEVMETHOD(ofw_bus_get_model, ofw_bus_gen_get_model), 141167308Smarius DEVMETHOD(ofw_bus_get_name, ofw_bus_gen_get_name), 142167308Smarius DEVMETHOD(ofw_bus_get_node, ofw_bus_gen_get_node), 143167308Smarius DEVMETHOD(ofw_bus_get_type, ofw_bus_gen_get_type), 144167308Smarius 145190099Smarius KOBJMETHOD_END 14686227Stmm}; 14786227Stmm 14886227Stmmstatic devclass_t nexus_devclass; 14986227Stmm 150167308SmariusDEFINE_CLASS_0(nexus, nexus_driver, nexus_methods, sizeof(struct nexus_softc)); 151200874SmariusEARLY_DRIVER_MODULE(nexus, root, nexus_driver, nexus_devclass, 0, 0, 152200874Smarius BUS_PASS_BUS); 153200815SmariusMODULE_VERSION(nexus, 1); 15486227Stmm 155185133Smariusstatic const char *const nexus_excl_name[] = { 156207240Smarius "FJSV,system", 15790622Stmm "aliases", 158167308Smarius "associations", 15990622Stmm "chosen", 160203844Smarius "cmp", 16190622Stmm "counter-timer", /* No separate device; handled by psycho/sbus */ 162203844Smarius "failsafe", 16386227Stmm "memory", 16490622Stmm "openprom", 16586227Stmm "options", 16686227Stmm "packages", 167207240Smarius "physical-memory", 168167308Smarius "rsc", 169203844Smarius "sgcn", 170203844Smarius "todsg", 17190622Stmm "virtual-memory", 17286227Stmm NULL 17386227Stmm}; 17486227Stmm 175185133Smariusstatic const char *const nexus_excl_type[] = { 176203844Smarius "core", 17786227Stmm "cpu", 17886227Stmm NULL 17986227Stmm}; 18086227Stmm 18186227Stmmextern struct bus_space_tag nexus_bustag; 18286227Stmmextern struct bus_dma_tag nexus_dmatag; 18386227Stmm 18486227Stmmstatic int 185185133Smariusnexus_inlist(const char *name, const char *const *list) 18686227Stmm{ 18786227Stmm int i; 18886227Stmm 189167308Smarius if (name == NULL) 190167308Smarius return (0); 19186227Stmm for (i = 0; list[i] != NULL; i++) 19286227Stmm if (strcmp(name, list[i]) == 0) 19386227Stmm return (1); 19486227Stmm return (0); 19586227Stmm} 19686227Stmm 19786227Stmm#define NEXUS_EXCLUDED(name, type) \ 19886227Stmm (nexus_inlist((name), nexus_excl_name) || \ 19986227Stmm ((type) != NULL && nexus_inlist((type), nexus_excl_type))) 20086227Stmm 20186227Stmmstatic int 20286227Stmmnexus_probe(device_t dev) 20386227Stmm{ 204128776Stmm 205128776Stmm /* Nexus does always match. */ 206133862Smarius device_set_desc(dev, "Open Firmware Nexus device"); 207128776Stmm return (0); 208128776Stmm} 209128776Stmm 210128776Stmmstatic int 211128776Stmmnexus_attach(device_t dev) 212128776Stmm{ 213167308Smarius struct nexus_devinfo *ndi; 214167308Smarius struct nexus_softc *sc; 21586227Stmm device_t cdev; 216167308Smarius phandle_t node; 21786227Stmm 218203844Smarius if (strcmp(device_get_name(device_get_parent(dev)), "root") == 0) { 219203844Smarius node = OF_peer(0); 220203844Smarius if (node == -1) 221203844Smarius panic("%s: OF_peer failed.", __func__); 22286227Stmm 223203844Smarius sc = device_get_softc(dev); 224203844Smarius sc->sc_intr_rman.rm_type = RMAN_ARRAY; 225203844Smarius sc->sc_intr_rman.rm_descr = "Interrupts"; 226203844Smarius sc->sc_mem_rman.rm_type = RMAN_ARRAY; 227203844Smarius sc->sc_mem_rman.rm_descr = "Device Memory"; 228203844Smarius if (rman_init(&sc->sc_intr_rman) != 0 || 229203844Smarius rman_init(&sc->sc_mem_rman) != 0 || 230203844Smarius rman_manage_region(&sc->sc_intr_rman, 0, 231203844Smarius IV_MAX - 1) != 0 || 232203844Smarius rman_manage_region(&sc->sc_mem_rman, 0ULL, ~0ULL) != 0) 233203844Smarius panic("%s: failed to set up rmans.", __func__); 234203844Smarius } else 235203844Smarius node = ofw_bus_get_node(dev); 236146474Smarius 237146474Smarius /* 238146474Smarius * Allow devices to identify. 239146474Smarius */ 240146474Smarius bus_generic_probe(dev); 241146474Smarius 242146474Smarius /* 243146474Smarius * Now walk the OFW tree and attach top-level devices. 244146474Smarius */ 245167308Smarius for (node = OF_child(node); node > 0; node = OF_peer(node)) { 246167308Smarius if ((ndi = nexus_setup_dinfo(dev, node)) == NULL) 24786227Stmm continue; 248167308Smarius cdev = device_add_child(dev, NULL, -1); 249167308Smarius if (cdev == NULL) { 250167308Smarius device_printf(dev, "<%s>: device_add_child failed\n", 251167308Smarius ndi->ndi_obdinfo.obd_name); 252167308Smarius nexus_destroy_dinfo(ndi); 25386227Stmm continue; 25488823Stmm } 255167308Smarius device_set_ivars(cdev, ndi); 25686227Stmm } 257128776Stmm return (bus_generic_attach(dev)); 25886227Stmm} 25986227Stmm 260146474Smariusstatic device_t 261146474Smariusnexus_add_child(device_t dev, int order, const char *name, int unit) 262146474Smarius{ 263146474Smarius device_t cdev; 264167308Smarius struct nexus_devinfo *ndi; 265146474Smarius 266146474Smarius cdev = device_add_child_ordered(dev, order, name, unit); 267146474Smarius if (cdev == NULL) 268146474Smarius return (NULL); 269146474Smarius 270167308Smarius ndi = malloc(sizeof(*ndi), M_DEVBUF, M_WAITOK | M_ZERO); 271167308Smarius ndi->ndi_obdinfo.obd_node = -1; 272167308Smarius ndi->ndi_obdinfo.obd_name = strdup(name, M_OFWPROP); 273167308Smarius resource_list_init(&ndi->ndi_rl); 274167308Smarius device_set_ivars(cdev, ndi); 275146474Smarius 276146474Smarius return (cdev); 277146474Smarius} 278146474Smarius 279167308Smariusstatic int 280167308Smariusnexus_print_child(device_t dev, device_t child) 28186227Stmm{ 282167308Smarius int rv; 28386227Stmm 284167308Smarius rv = bus_print_child_header(dev, child); 285167308Smarius rv += nexus_print_res(device_get_ivars(child)); 286167308Smarius rv += bus_print_child_footer(dev, child); 287167308Smarius return (rv); 28886227Stmm} 28986227Stmm 290167308Smariusstatic void 291167308Smariusnexus_probe_nomatch(device_t dev, device_t child) 29286227Stmm{ 293167308Smarius const char *type; 29486227Stmm 295167308Smarius device_printf(dev, "<%s>", ofw_bus_get_name(child)); 296167308Smarius nexus_print_res(device_get_ivars(child)); 297167308Smarius type = ofw_bus_get_type(child); 298167308Smarius printf(" type %s (no driver attached)\n", 299167308Smarius type != NULL ? type : "unknown"); 30086227Stmm} 30186227Stmm 30286227Stmmstatic int 30386227Stmmnexus_setup_intr(device_t dev, device_t child, struct resource *res, int flags, 304166901Spiso driver_filter_t *filt, driver_intr_t *intr, void *arg, void **cookiep) 30586227Stmm{ 30686227Stmm int error; 30788823Stmm 30886227Stmm if (res == NULL) 309167308Smarius panic("%s: NULL interrupt resource!", __func__); 31086227Stmm 311131535Simp if ((rman_get_flags(res) & RF_SHAREABLE) == 0) 31286227Stmm flags |= INTR_EXCL; 31386227Stmm 314128776Stmm /* We depend here on rman_activate_resource() being idempotent. */ 31586227Stmm error = rman_activate_resource(res); 31686227Stmm if (error) 31786227Stmm return (error); 31886227Stmm 319131535Simp error = inthand_add(device_get_nameunit(child), rman_get_start(res), 320166901Spiso filt, intr, arg, flags, cookiep); 32186227Stmm 322167308Smarius /* 323167308Smarius * XXX in case of the AFB/FFB interrupt and a Psycho, Sabre or U2S 324167308Smarius * bridge enable the interrupt in the respective bridge. 325167308Smarius */ 326167308Smarius 32786227Stmm return (error); 32886227Stmm} 32986227Stmm 33086227Stmmstatic int 33186227Stmmnexus_teardown_intr(device_t dev, device_t child, struct resource *r, void *ih) 33286227Stmm{ 333146474Smarius 334131535Simp inthand_remove(rman_get_start(r), ih); 33586227Stmm return (0); 33686227Stmm} 33786227Stmm 338178443Smarius#ifdef SMP 339178443Smariusstatic int 340178443Smariusnexus_bind_intr(device_t dev, device_t child, struct resource *r, int cpu) 341178443Smarius{ 342178443Smarius 343178443Smarius return (intr_bind(rman_get_start(r), cpu)); 344178443Smarius} 345178443Smarius#endif 346178443Smarius 347200948Smariusstatic int 348200948Smariusnexus_describe_intr(device_t dev, device_t child, struct resource *r, 349200948Smarius void *cookie, const char *descr) 350200948Smarius{ 351200948Smarius 352200948Smarius return (intr_describe(rman_get_start(r), cookie, descr)); 353200948Smarius} 354200948Smarius 35586227Stmmstatic struct resource * 35686227Stmmnexus_alloc_resource(device_t bus, device_t child, int type, int *rid, 35786227Stmm u_long start, u_long end, u_long count, u_int flags) 35886227Stmm{ 359167308Smarius struct nexus_softc *sc; 360167308Smarius struct rman *rm; 361167308Smarius struct resource *rv; 362167308Smarius struct resource_list_entry *rle; 363203844Smarius device_t nexus; 364167308Smarius int isdefault, needactivate, passthrough; 36586227Stmm 366167308Smarius isdefault = (start == 0UL && end == ~0UL); 367167308Smarius needactivate = flags & RF_ACTIVE; 368167308Smarius passthrough = (device_get_parent(child) != bus); 369203844Smarius nexus = bus; 370203844Smarius while (strcmp(device_get_name(device_get_parent(nexus)), "root") != 0) 371203844Smarius nexus = device_get_parent(nexus); 372203844Smarius sc = device_get_softc(nexus); 373167308Smarius rle = NULL; 37486227Stmm 375167308Smarius if (!passthrough) { 376167308Smarius rle = resource_list_find(BUS_GET_RESOURCE_LIST(bus, child), 377167308Smarius type, *rid); 378167308Smarius if (rle == NULL) 379167308Smarius return (NULL); 380167308Smarius if (rle->res != NULL) 381167308Smarius panic("%s: resource entry is busy", __func__); 382167308Smarius if (isdefault) { 383167308Smarius start = rle->start; 384167308Smarius count = ulmax(count, rle->count); 385167308Smarius end = ulmax(rle->end, start + count - 1); 386167308Smarius } 387167308Smarius } 388167308Smarius 38986227Stmm switch (type) { 39086227Stmm case SYS_RES_IRQ: 39188823Stmm rm = &sc->sc_intr_rman; 39286227Stmm break; 39388823Stmm case SYS_RES_MEMORY: 39488823Stmm rm = &sc->sc_mem_rman; 39588823Stmm break; 39686227Stmm default: 39786227Stmm return (NULL); 39886227Stmm } 39986227Stmm 400167308Smarius flags &= ~RF_ACTIVE; 40186227Stmm rv = rman_reserve_resource(rm, start, end, count, flags, child); 40286227Stmm if (rv == NULL) 40386227Stmm return (NULL); 404157896Simp rman_set_rid(rv, *rid); 40588823Stmm if (type == SYS_RES_MEMORY) { 40688823Stmm rman_set_bustag(rv, &nexus_bustag); 40788823Stmm rman_set_bushandle(rv, rman_get_start(rv)); 40888823Stmm } 40986227Stmm 41086227Stmm if (needactivate) { 411128776Stmm if (bus_activate_resource(child, type, *rid, rv) != 0) { 41286227Stmm rman_release_resource(rv); 41386227Stmm return (NULL); 41486227Stmm } 41586227Stmm } 41688823Stmm 417167308Smarius if (!passthrough) { 418167308Smarius rle->res = rv; 419167308Smarius rle->start = rman_get_start(rv); 420167308Smarius rle->end = rman_get_end(rv); 421167308Smarius rle->count = rle->end - rle->start + 1; 422167308Smarius } 423167308Smarius 42486227Stmm return (rv); 42586227Stmm} 42686227Stmm 42786227Stmmstatic int 42886227Stmmnexus_activate_resource(device_t bus, device_t child, int type, int rid, 42986227Stmm struct resource *r) 43086227Stmm{ 43186227Stmm 43286227Stmm /* Not much to be done yet... */ 43386227Stmm return (rman_activate_resource(r)); 43486227Stmm} 43586227Stmm 43686227Stmmstatic int 43786227Stmmnexus_deactivate_resource(device_t bus, device_t child, int type, int rid, 43886227Stmm struct resource *r) 43986227Stmm{ 44088823Stmm 44186227Stmm /* Not much to be done yet... */ 44286227Stmm return (rman_deactivate_resource(r)); 44386227Stmm} 44486227Stmm 44586227Stmmstatic int 44686227Stmmnexus_release_resource(device_t bus, device_t child, int type, int rid, 447167308Smarius struct resource *r) 44886227Stmm{ 44986227Stmm int error; 45086227Stmm 45186227Stmm if (rman_get_flags(r) & RF_ACTIVE) { 45286227Stmm error = bus_deactivate_resource(child, type, rid, r); 45386227Stmm if (error) 454128776Stmm return (error); 45586227Stmm } 45686227Stmm return (rman_release_resource(r)); 45786227Stmm} 458167308Smarius 459167308Smariusstatic struct resource_list * 460167308Smariusnexus_get_resource_list(device_t dev, device_t child) 461167308Smarius{ 462167308Smarius struct nexus_devinfo *ndi; 463167308Smarius 464167308Smarius ndi = device_get_ivars(child); 465167308Smarius return (&ndi->ndi_rl); 466167308Smarius} 467167308Smarius 468167308Smariusstatic bus_dma_tag_t 469167308Smariusnexus_get_dma_tag(device_t bus, device_t child) 470167308Smarius{ 471167308Smarius 472167308Smarius return (&nexus_dmatag); 473167308Smarius} 474167308Smarius 475167308Smariusstatic const struct ofw_bus_devinfo * 476167308Smariusnexus_get_devinfo(device_t dev, device_t child) 477167308Smarius{ 478167308Smarius struct nexus_devinfo *ndi; 479167308Smarius 480167308Smarius ndi = device_get_ivars(child); 481167308Smarius return (&ndi->ndi_obdinfo); 482167308Smarius} 483167308Smarius 484167308Smariusstatic struct nexus_devinfo * 485167308Smariusnexus_setup_dinfo(device_t dev, phandle_t node) 486167308Smarius{ 487167308Smarius struct nexus_devinfo *ndi; 488167308Smarius struct nexus_regs *reg; 489167308Smarius bus_addr_t phys; 490167308Smarius bus_size_t size; 491167308Smarius uint32_t ign; 492167308Smarius uint32_t *intr; 493167308Smarius int i; 494167308Smarius int nintr; 495167308Smarius int nreg; 496167308Smarius 497167308Smarius ndi = malloc(sizeof(*ndi), M_DEVBUF, M_WAITOK | M_ZERO); 498167308Smarius if (ofw_bus_gen_setup_devinfo(&ndi->ndi_obdinfo, node) != 0) { 499167308Smarius free(ndi, M_DEVBUF); 500167308Smarius return (NULL); 501167308Smarius } 502167308Smarius if (NEXUS_EXCLUDED(ndi->ndi_obdinfo.obd_name, 503167308Smarius ndi->ndi_obdinfo.obd_type)) { 504167308Smarius ofw_bus_gen_destroy_devinfo(&ndi->ndi_obdinfo); 505167308Smarius free(ndi, M_DEVBUF); 506167308Smarius return (NULL); 507167308Smarius } 508167308Smarius resource_list_init(&ndi->ndi_rl); 509167308Smarius nreg = OF_getprop_alloc(node, "reg", sizeof(*reg), (void **)®); 510167308Smarius if (nreg == -1) { 511167308Smarius device_printf(dev, "<%s>: incomplete\n", 512167308Smarius ndi->ndi_obdinfo.obd_name); 513167308Smarius goto fail; 514167308Smarius } 515167308Smarius for (i = 0; i < nreg; i++) { 516167308Smarius phys = NEXUS_REG_PHYS(®[i]); 517167308Smarius size = NEXUS_REG_SIZE(®[i]); 518203844Smarius /* Skip the dummy reg property of glue devices like ssm(4). */ 519203844Smarius if (size != 0) 520203844Smarius resource_list_add(&ndi->ndi_rl, SYS_RES_MEMORY, i, 521203844Smarius phys, phys + size - 1, size); 522167308Smarius } 523167308Smarius free(reg, M_OFWPROP); 524167308Smarius 525167308Smarius nintr = OF_getprop_alloc(node, "interrupts", sizeof(*intr), 526167308Smarius (void **)&intr); 527167308Smarius if (nintr > 0) { 528204152Smarius if (OF_getprop(node, PCPU_GET(impl) < CPU_IMPL_ULTRASPARCIII ? 529167308Smarius "upa-portid" : "portid", &ign, sizeof(ign)) <= 0) { 530167308Smarius device_printf(dev, "<%s>: could not determine portid\n", 531167308Smarius ndi->ndi_obdinfo.obd_name); 532167308Smarius free(intr, M_OFWPROP); 533167308Smarius goto fail; 534167308Smarius } 535167308Smarius 536167308Smarius /* XXX 7-bit MID on Starfire */ 537167308Smarius ign = (ign << INTMAP_IGN_SHIFT) & INTMAP_IGN_MASK; 538167308Smarius for (i = 0; i < nintr; i++) { 539167308Smarius intr[i] |= ign; 540167308Smarius resource_list_add(&ndi->ndi_rl, SYS_RES_IRQ, i, intr[i], 541167308Smarius intr[i], 1); 542167308Smarius } 543167308Smarius free(intr, M_OFWPROP); 544167308Smarius } 545167308Smarius 546167308Smarius return (ndi); 547167308Smarius 548167308Smarius fail: 549167308Smarius nexus_destroy_dinfo(ndi); 550167308Smarius return (NULL); 551167308Smarius} 552167308Smarius 553167308Smariusstatic void 554167308Smariusnexus_destroy_dinfo(struct nexus_devinfo *ndi) 555167308Smarius{ 556167308Smarius 557167308Smarius resource_list_free(&ndi->ndi_rl); 558167308Smarius ofw_bus_gen_destroy_devinfo(&ndi->ndi_obdinfo); 559167308Smarius free(ndi, M_DEVBUF); 560167308Smarius} 561167308Smarius 562167308Smariusstatic int 563167308Smariusnexus_print_res(struct nexus_devinfo *ndi) 564167308Smarius{ 565167308Smarius int rv; 566167308Smarius 567167308Smarius rv = 0; 568167308Smarius rv += resource_list_print_type(&ndi->ndi_rl, "mem", SYS_RES_MEMORY, 569167308Smarius "%#lx"); 570167308Smarius rv += resource_list_print_type(&ndi->ndi_rl, "irq", SYS_RES_IRQ, 571167308Smarius "%ld"); 572167308Smarius return (rv); 573167308Smarius} 574