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("$FreeBSD$"); 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; 93225931Smariusstatic bus_adjust_resource_t nexus_adjust_resource; 94128776Stmmstatic bus_release_resource_t nexus_release_resource; 95167308Smariusstatic bus_get_resource_list_t nexus_get_resource_list; 96200948Smarius#ifdef SMP 97200948Smariusstatic bus_bind_intr_t nexus_bind_intr; 98200948Smarius#endif 99200948Smariusstatic bus_describe_intr_t nexus_describe_intr; 100167308Smariusstatic bus_get_dma_tag_t nexus_get_dma_tag; 101295755Szbbstatic bus_get_bus_tag_t nexus_get_bus_tag; 102167308Smariusstatic ofw_bus_get_devinfo_t nexus_get_devinfo; 10386227Stmm 104185133Smariusstatic int nexus_inlist(const char *, const char *const *); 105167308Smariusstatic struct nexus_devinfo * nexus_setup_dinfo(device_t, phandle_t); 106167308Smariusstatic void nexus_destroy_dinfo(struct nexus_devinfo *); 107167308Smariusstatic int nexus_print_res(struct nexus_devinfo *); 108167308Smarius 10986227Stmmstatic device_method_t nexus_methods[] = { 11086227Stmm /* Device interface */ 11186227Stmm DEVMETHOD(device_probe, nexus_probe), 112128776Stmm DEVMETHOD(device_attach, nexus_attach), 11386227Stmm DEVMETHOD(device_detach, bus_generic_detach), 11486227Stmm DEVMETHOD(device_shutdown, bus_generic_shutdown), 11586227Stmm DEVMETHOD(device_suspend, bus_generic_suspend), 11686227Stmm DEVMETHOD(device_resume, bus_generic_resume), 11786227Stmm 118167308Smarius /* Bus interface */ 119167308Smarius DEVMETHOD(bus_print_child, nexus_print_child), 120167308Smarius DEVMETHOD(bus_probe_nomatch, nexus_probe_nomatch), 121167308Smarius DEVMETHOD(bus_read_ivar, bus_generic_read_ivar), 122167308Smarius DEVMETHOD(bus_write_ivar, bus_generic_write_ivar), 123146474Smarius DEVMETHOD(bus_add_child, nexus_add_child), 12486227Stmm DEVMETHOD(bus_alloc_resource, nexus_alloc_resource), 12586227Stmm DEVMETHOD(bus_activate_resource, nexus_activate_resource), 12686227Stmm DEVMETHOD(bus_deactivate_resource, nexus_deactivate_resource), 127225931Smarius DEVMETHOD(bus_adjust_resource, nexus_adjust_resource), 12886227Stmm DEVMETHOD(bus_release_resource, nexus_release_resource), 129167308Smarius DEVMETHOD(bus_setup_intr, nexus_setup_intr), 130167308Smarius DEVMETHOD(bus_teardown_intr, nexus_teardown_intr), 131190099Smarius DEVMETHOD(bus_set_resource, bus_generic_rl_set_resource), 132190099Smarius DEVMETHOD(bus_get_resource, bus_generic_rl_get_resource), 133190099Smarius DEVMETHOD(bus_get_resource_list, nexus_get_resource_list), 134178443Smarius#ifdef SMP 135178443Smarius DEVMETHOD(bus_bind_intr, nexus_bind_intr), 136178443Smarius#endif 137200948Smarius DEVMETHOD(bus_describe_intr, nexus_describe_intr), 138167308Smarius DEVMETHOD(bus_get_dma_tag, nexus_get_dma_tag), 139295755Szbb DEVMETHOD(bus_get_bus_tag, nexus_get_bus_tag), 14086227Stmm 141167308Smarius /* ofw_bus interface */ 142167308Smarius DEVMETHOD(ofw_bus_get_devinfo, nexus_get_devinfo), 143167308Smarius DEVMETHOD(ofw_bus_get_compat, ofw_bus_gen_get_compat), 144167308Smarius DEVMETHOD(ofw_bus_get_model, ofw_bus_gen_get_model), 145167308Smarius DEVMETHOD(ofw_bus_get_name, ofw_bus_gen_get_name), 146167308Smarius DEVMETHOD(ofw_bus_get_node, ofw_bus_gen_get_node), 147167308Smarius DEVMETHOD(ofw_bus_get_type, ofw_bus_gen_get_type), 148167308Smarius 149227848Smarius DEVMETHOD_END 15086227Stmm}; 15186227Stmm 15286227Stmmstatic devclass_t nexus_devclass; 15386227Stmm 154167308SmariusDEFINE_CLASS_0(nexus, nexus_driver, nexus_methods, sizeof(struct nexus_softc)); 155200874SmariusEARLY_DRIVER_MODULE(nexus, root, nexus_driver, nexus_devclass, 0, 0, 156200874Smarius BUS_PASS_BUS); 157200815SmariusMODULE_VERSION(nexus, 1); 15886227Stmm 159185133Smariusstatic const char *const nexus_excl_name[] = { 160207240Smarius "FJSV,system", 16190622Stmm "aliases", 162167308Smarius "associations", 16390622Stmm "chosen", 164203844Smarius "cmp", 16590622Stmm "counter-timer", /* No separate device; handled by psycho/sbus */ 166203844Smarius "failsafe", 16786227Stmm "memory", 16890622Stmm "openprom", 16986227Stmm "options", 17086227Stmm "packages", 171207240Smarius "physical-memory", 172167308Smarius "rsc", 173203844Smarius "sgcn", 174203844Smarius "todsg", 17590622Stmm "virtual-memory", 17686227Stmm NULL 17786227Stmm}; 17886227Stmm 179185133Smariusstatic const char *const nexus_excl_type[] = { 180203844Smarius "core", 18186227Stmm "cpu", 18286227Stmm NULL 18386227Stmm}; 18486227Stmm 18586227Stmmextern struct bus_space_tag nexus_bustag; 18686227Stmmextern struct bus_dma_tag nexus_dmatag; 18786227Stmm 18886227Stmmstatic int 189185133Smariusnexus_inlist(const char *name, const char *const *list) 19086227Stmm{ 19186227Stmm int i; 19286227Stmm 193167308Smarius if (name == NULL) 194167308Smarius return (0); 19586227Stmm for (i = 0; list[i] != NULL; i++) 19686227Stmm if (strcmp(name, list[i]) == 0) 19786227Stmm return (1); 19886227Stmm return (0); 19986227Stmm} 20086227Stmm 20186227Stmm#define NEXUS_EXCLUDED(name, type) \ 20286227Stmm (nexus_inlist((name), nexus_excl_name) || \ 20386227Stmm ((type) != NULL && nexus_inlist((type), nexus_excl_type))) 20486227Stmm 20586227Stmmstatic int 20686227Stmmnexus_probe(device_t dev) 20786227Stmm{ 208128776Stmm 209128776Stmm /* Nexus does always match. */ 210133862Smarius device_set_desc(dev, "Open Firmware Nexus device"); 211128776Stmm return (0); 212128776Stmm} 213128776Stmm 214128776Stmmstatic int 215128776Stmmnexus_attach(device_t dev) 216128776Stmm{ 217167308Smarius struct nexus_devinfo *ndi; 218167308Smarius struct nexus_softc *sc; 21986227Stmm device_t cdev; 220167308Smarius phandle_t node; 22186227Stmm 222203844Smarius if (strcmp(device_get_name(device_get_parent(dev)), "root") == 0) { 223203844Smarius node = OF_peer(0); 224203844Smarius if (node == -1) 225203844Smarius panic("%s: OF_peer failed.", __func__); 22686227Stmm 227203844Smarius sc = device_get_softc(dev); 228203844Smarius sc->sc_intr_rman.rm_type = RMAN_ARRAY; 229203844Smarius sc->sc_intr_rman.rm_descr = "Interrupts"; 230203844Smarius sc->sc_mem_rman.rm_type = RMAN_ARRAY; 231203844Smarius sc->sc_mem_rman.rm_descr = "Device Memory"; 232203844Smarius if (rman_init(&sc->sc_intr_rman) != 0 || 233203844Smarius rman_init(&sc->sc_mem_rman) != 0 || 234203844Smarius rman_manage_region(&sc->sc_intr_rman, 0, 235203844Smarius IV_MAX - 1) != 0 || 236296250Sjhibbits rman_manage_region(&sc->sc_mem_rman, 0, BUS_SPACE_MAXADDR) != 0) 237203844Smarius panic("%s: failed to set up rmans.", __func__); 238203844Smarius } else 239203844Smarius node = ofw_bus_get_node(dev); 240146474Smarius 241146474Smarius /* 242146474Smarius * Allow devices to identify. 243146474Smarius */ 244146474Smarius bus_generic_probe(dev); 245146474Smarius 246146474Smarius /* 247146474Smarius * Now walk the OFW tree and attach top-level devices. 248146474Smarius */ 249167308Smarius for (node = OF_child(node); node > 0; node = OF_peer(node)) { 250167308Smarius if ((ndi = nexus_setup_dinfo(dev, node)) == NULL) 25186227Stmm continue; 252167308Smarius cdev = device_add_child(dev, NULL, -1); 253167308Smarius if (cdev == NULL) { 254167308Smarius device_printf(dev, "<%s>: device_add_child failed\n", 255167308Smarius ndi->ndi_obdinfo.obd_name); 256167308Smarius nexus_destroy_dinfo(ndi); 25786227Stmm continue; 25888823Stmm } 259167308Smarius device_set_ivars(cdev, ndi); 26086227Stmm } 261128776Stmm return (bus_generic_attach(dev)); 26286227Stmm} 26386227Stmm 264146474Smariusstatic device_t 265212413Savgnexus_add_child(device_t dev, u_int order, const char *name, int unit) 266146474Smarius{ 267146474Smarius device_t cdev; 268167308Smarius struct nexus_devinfo *ndi; 269146474Smarius 270146474Smarius cdev = device_add_child_ordered(dev, order, name, unit); 271146474Smarius if (cdev == NULL) 272146474Smarius return (NULL); 273146474Smarius 274167308Smarius ndi = malloc(sizeof(*ndi), M_DEVBUF, M_WAITOK | M_ZERO); 275167308Smarius ndi->ndi_obdinfo.obd_node = -1; 276167308Smarius ndi->ndi_obdinfo.obd_name = strdup(name, M_OFWPROP); 277167308Smarius resource_list_init(&ndi->ndi_rl); 278167308Smarius device_set_ivars(cdev, ndi); 279146474Smarius 280146474Smarius return (cdev); 281146474Smarius} 282146474Smarius 283167308Smariusstatic int 284225931Smariusnexus_print_child(device_t bus, device_t child) 28586227Stmm{ 286167308Smarius int rv; 28786227Stmm 288225931Smarius rv = bus_print_child_header(bus, child); 289167308Smarius rv += nexus_print_res(device_get_ivars(child)); 290225931Smarius rv += bus_print_child_footer(bus, child); 291167308Smarius return (rv); 29286227Stmm} 29386227Stmm 294167308Smariusstatic void 295225931Smariusnexus_probe_nomatch(device_t bus, device_t child) 29686227Stmm{ 297167308Smarius const char *type; 29886227Stmm 299225931Smarius device_printf(bus, "<%s>", ofw_bus_get_name(child)); 300167308Smarius nexus_print_res(device_get_ivars(child)); 301167308Smarius type = ofw_bus_get_type(child); 302167308Smarius printf(" type %s (no driver attached)\n", 303167308Smarius type != NULL ? type : "unknown"); 30486227Stmm} 30586227Stmm 30686227Stmmstatic int 307225931Smariusnexus_setup_intr(device_t bus __unused, device_t child, struct resource *r, 308225931Smarius int flags, driver_filter_t *filt, driver_intr_t *intr, void *arg, 309225931Smarius void **cookiep) 31086227Stmm{ 31186227Stmm int error; 31288823Stmm 313225931Smarius if (r == NULL) 314167308Smarius panic("%s: NULL interrupt resource!", __func__); 31586227Stmm 316225931Smarius if ((rman_get_flags(r) & RF_SHAREABLE) == 0) 31786227Stmm flags |= INTR_EXCL; 31886227Stmm 319128776Stmm /* We depend here on rman_activate_resource() being idempotent. */ 320225931Smarius error = rman_activate_resource(r); 32186227Stmm if (error) 32286227Stmm return (error); 32386227Stmm 324225931Smarius error = inthand_add(device_get_nameunit(child), rman_get_start(r), 325166901Spiso filt, intr, arg, flags, cookiep); 32686227Stmm 327167308Smarius /* 328167308Smarius * XXX in case of the AFB/FFB interrupt and a Psycho, Sabre or U2S 329167308Smarius * bridge enable the interrupt in the respective bridge. 330167308Smarius */ 331167308Smarius 33286227Stmm return (error); 33386227Stmm} 33486227Stmm 33586227Stmmstatic int 336225931Smariusnexus_teardown_intr(device_t bus __unused, device_t child __unused, 337225931Smarius struct resource *r, void *ih) 33886227Stmm{ 339146474Smarius 340131535Simp inthand_remove(rman_get_start(r), ih); 34186227Stmm return (0); 34286227Stmm} 34386227Stmm 344178443Smarius#ifdef SMP 345178443Smariusstatic int 346225931Smariusnexus_bind_intr(device_t bus __unused, device_t child __unused, 347225931Smarius struct resource *r, int cpu) 348178443Smarius{ 349178443Smarius 350178443Smarius return (intr_bind(rman_get_start(r), cpu)); 351178443Smarius} 352178443Smarius#endif 353178443Smarius 354200948Smariusstatic int 355225931Smariusnexus_describe_intr(device_t bus __unused, device_t child __unused, 356225931Smarius struct resource *r, void *cookie, const char *descr) 357200948Smarius{ 358200948Smarius 359200948Smarius return (intr_describe(rman_get_start(r), cookie, descr)); 360200948Smarius} 361200948Smarius 36286227Stmmstatic struct resource * 36386227Stmmnexus_alloc_resource(device_t bus, device_t child, int type, int *rid, 364294883Sjhibbits rman_res_t start, rman_res_t end, rman_res_t count, u_int flags) 36586227Stmm{ 366167308Smarius struct nexus_softc *sc; 367167308Smarius struct rman *rm; 368167308Smarius struct resource *rv; 369167308Smarius struct resource_list_entry *rle; 370203844Smarius device_t nexus; 371225931Smarius int isdefault, passthrough; 37286227Stmm 373295832Sjhibbits isdefault = RMAN_IS_DEFAULT_RANGE(start, end); 374167308Smarius passthrough = (device_get_parent(child) != bus); 375203844Smarius nexus = bus; 376203844Smarius while (strcmp(device_get_name(device_get_parent(nexus)), "root") != 0) 377203844Smarius nexus = device_get_parent(nexus); 378203844Smarius sc = device_get_softc(nexus); 379167308Smarius rle = NULL; 38086227Stmm 381167308Smarius if (!passthrough) { 382167308Smarius rle = resource_list_find(BUS_GET_RESOURCE_LIST(bus, child), 383167308Smarius type, *rid); 384167308Smarius if (rle == NULL) 385167308Smarius return (NULL); 386167308Smarius if (rle->res != NULL) 387167308Smarius panic("%s: resource entry is busy", __func__); 388167308Smarius if (isdefault) { 389167308Smarius start = rle->start; 390167308Smarius count = ulmax(count, rle->count); 391167308Smarius end = ulmax(rle->end, start + count - 1); 392167308Smarius } 393167308Smarius } 394167308Smarius 39586227Stmm switch (type) { 39686227Stmm case SYS_RES_IRQ: 39788823Stmm rm = &sc->sc_intr_rman; 39886227Stmm break; 39988823Stmm case SYS_RES_MEMORY: 40088823Stmm rm = &sc->sc_mem_rman; 40188823Stmm break; 40286227Stmm default: 40386227Stmm return (NULL); 40486227Stmm } 40586227Stmm 406225931Smarius rv = rman_reserve_resource(rm, start, end, count, flags & ~RF_ACTIVE, 407225931Smarius child); 40886227Stmm if (rv == NULL) 40986227Stmm return (NULL); 410157896Simp rman_set_rid(rv, *rid); 41186227Stmm 412225931Smarius if ((flags & RF_ACTIVE) != 0 && bus_activate_resource(child, type, 413225931Smarius *rid, rv) != 0) { 414225931Smarius rman_release_resource(rv); 415225931Smarius return (NULL); 41686227Stmm } 41788823Stmm 418167308Smarius if (!passthrough) { 419167308Smarius rle->res = rv; 420167308Smarius rle->start = rman_get_start(rv); 421167308Smarius rle->end = rman_get_end(rv); 422167308Smarius rle->count = rle->end - rle->start + 1; 423167308Smarius } 424167308Smarius 42586227Stmm return (rv); 42686227Stmm} 42786227Stmm 42886227Stmmstatic int 429225931Smariusnexus_activate_resource(device_t bus __unused, device_t child __unused, 430225931Smarius int type, int rid __unused, struct resource *r) 43186227Stmm{ 43286227Stmm 433225931Smarius if (type == SYS_RES_MEMORY) { 434225931Smarius rman_set_bustag(r, &nexus_bustag); 435225931Smarius rman_set_bushandle(r, rman_get_start(r)); 436225931Smarius } 43786227Stmm return (rman_activate_resource(r)); 43886227Stmm} 43986227Stmm 44086227Stmmstatic int 441225931Smariusnexus_deactivate_resource(device_t bus __unused, device_t child __unused, 442225931Smarius int type __unused, int rid __unused, struct resource *r) 44386227Stmm{ 44488823Stmm 44586227Stmm return (rman_deactivate_resource(r)); 44686227Stmm} 44786227Stmm 44886227Stmmstatic int 449225931Smariusnexus_adjust_resource(device_t bus, device_t child __unused, int type, 450294883Sjhibbits struct resource *r, rman_res_t start, rman_res_t end) 45186227Stmm{ 452225931Smarius struct nexus_softc *sc; 453225931Smarius struct rman *rm; 454225931Smarius device_t nexus; 455225931Smarius 456225931Smarius nexus = bus; 457225931Smarius while (strcmp(device_get_name(device_get_parent(nexus)), "root") != 0) 458225931Smarius nexus = device_get_parent(nexus); 459225931Smarius sc = device_get_softc(nexus); 460225931Smarius switch (type) { 461225931Smarius case SYS_RES_IRQ: 462225931Smarius rm = &sc->sc_intr_rman; 463225931Smarius break; 464225931Smarius case SYS_RES_MEMORY: 465225931Smarius rm = &sc->sc_mem_rman; 466225931Smarius break; 467225931Smarius default: 468225931Smarius return (EINVAL); 469225931Smarius } 470225931Smarius if (rm == NULL) 471225931Smarius return (ENXIO); 472225931Smarius if (rman_is_region_manager(r, rm) == 0) 473225931Smarius return (EINVAL); 474225931Smarius return (rman_adjust_resource(r, start, end)); 475225931Smarius} 476225931Smarius 477225931Smariusstatic int 478225931Smariusnexus_release_resource(device_t bus __unused, device_t child, int type, 479225931Smarius int rid, struct resource *r) 480225931Smarius{ 48186227Stmm int error; 48286227Stmm 483225931Smarius if ((rman_get_flags(r) & RF_ACTIVE) != 0) { 48486227Stmm error = bus_deactivate_resource(child, type, rid, r); 48586227Stmm if (error) 486128776Stmm return (error); 48786227Stmm } 48886227Stmm return (rman_release_resource(r)); 48986227Stmm} 490167308Smarius 491167308Smariusstatic struct resource_list * 492225931Smariusnexus_get_resource_list(device_t bus __unused, device_t child) 493167308Smarius{ 494167308Smarius struct nexus_devinfo *ndi; 495167308Smarius 496167308Smarius ndi = device_get_ivars(child); 497167308Smarius return (&ndi->ndi_rl); 498167308Smarius} 499167308Smarius 500167308Smariusstatic bus_dma_tag_t 501225931Smariusnexus_get_dma_tag(device_t bus __unused, device_t child __unused) 502167308Smarius{ 503167308Smarius 504167308Smarius return (&nexus_dmatag); 505167308Smarius} 506167308Smarius 507295755Szbbstatic bus_space_tag_t 508295755Szbbnexus_get_bus_tag(device_t bus __unused, device_t child __unused) 509295755Szbb{ 510295755Szbb 511295755Szbb return (&nexus_bustag); 512295755Szbb} 513295755Szbb 514167308Smariusstatic const struct ofw_bus_devinfo * 515225931Smariusnexus_get_devinfo(device_t bus __unused, device_t child) 516167308Smarius{ 517167308Smarius struct nexus_devinfo *ndi; 518167308Smarius 519167308Smarius ndi = device_get_ivars(child); 520167308Smarius return (&ndi->ndi_obdinfo); 521167308Smarius} 522167308Smarius 523167308Smariusstatic struct nexus_devinfo * 524167308Smariusnexus_setup_dinfo(device_t dev, phandle_t node) 525167308Smarius{ 526167308Smarius struct nexus_devinfo *ndi; 527167308Smarius struct nexus_regs *reg; 528167308Smarius bus_addr_t phys; 529167308Smarius bus_size_t size; 530167308Smarius uint32_t ign; 531167308Smarius uint32_t *intr; 532167308Smarius int i; 533167308Smarius int nintr; 534167308Smarius int nreg; 535167308Smarius 536167308Smarius ndi = malloc(sizeof(*ndi), M_DEVBUF, M_WAITOK | M_ZERO); 537167308Smarius if (ofw_bus_gen_setup_devinfo(&ndi->ndi_obdinfo, node) != 0) { 538167308Smarius free(ndi, M_DEVBUF); 539167308Smarius return (NULL); 540167308Smarius } 541167308Smarius if (NEXUS_EXCLUDED(ndi->ndi_obdinfo.obd_name, 542167308Smarius ndi->ndi_obdinfo.obd_type)) { 543167308Smarius ofw_bus_gen_destroy_devinfo(&ndi->ndi_obdinfo); 544167308Smarius free(ndi, M_DEVBUF); 545167308Smarius return (NULL); 546167308Smarius } 547167308Smarius resource_list_init(&ndi->ndi_rl); 548167308Smarius nreg = OF_getprop_alloc(node, "reg", sizeof(*reg), (void **)®); 549167308Smarius if (nreg == -1) { 550167308Smarius device_printf(dev, "<%s>: incomplete\n", 551167308Smarius ndi->ndi_obdinfo.obd_name); 552167308Smarius goto fail; 553167308Smarius } 554167308Smarius for (i = 0; i < nreg; i++) { 555167308Smarius phys = NEXUS_REG_PHYS(®[i]); 556167308Smarius size = NEXUS_REG_SIZE(®[i]); 557203844Smarius /* Skip the dummy reg property of glue devices like ssm(4). */ 558203844Smarius if (size != 0) 559203844Smarius resource_list_add(&ndi->ndi_rl, SYS_RES_MEMORY, i, 560203844Smarius phys, phys + size - 1, size); 561167308Smarius } 562300173Sgonzo OF_prop_free(reg); 563167308Smarius 564167308Smarius nintr = OF_getprop_alloc(node, "interrupts", sizeof(*intr), 565167308Smarius (void **)&intr); 566167308Smarius if (nintr > 0) { 567204152Smarius if (OF_getprop(node, PCPU_GET(impl) < CPU_IMPL_ULTRASPARCIII ? 568167308Smarius "upa-portid" : "portid", &ign, sizeof(ign)) <= 0) { 569167308Smarius device_printf(dev, "<%s>: could not determine portid\n", 570167308Smarius ndi->ndi_obdinfo.obd_name); 571300173Sgonzo OF_prop_free(intr); 572167308Smarius goto fail; 573167308Smarius } 574167308Smarius 575167308Smarius /* XXX 7-bit MID on Starfire */ 576167308Smarius ign = (ign << INTMAP_IGN_SHIFT) & INTMAP_IGN_MASK; 577167308Smarius for (i = 0; i < nintr; i++) { 578167308Smarius intr[i] |= ign; 579167308Smarius resource_list_add(&ndi->ndi_rl, SYS_RES_IRQ, i, intr[i], 580167308Smarius intr[i], 1); 581167308Smarius } 582300173Sgonzo OF_prop_free(intr); 583167308Smarius } 584167308Smarius 585167308Smarius return (ndi); 586167308Smarius 587167308Smarius fail: 588167308Smarius nexus_destroy_dinfo(ndi); 589167308Smarius return (NULL); 590167308Smarius} 591167308Smarius 592167308Smariusstatic void 593167308Smariusnexus_destroy_dinfo(struct nexus_devinfo *ndi) 594167308Smarius{ 595167308Smarius 596167308Smarius resource_list_free(&ndi->ndi_rl); 597167308Smarius ofw_bus_gen_destroy_devinfo(&ndi->ndi_obdinfo); 598167308Smarius free(ndi, M_DEVBUF); 599167308Smarius} 600167308Smarius 601167308Smariusstatic int 602167308Smariusnexus_print_res(struct nexus_devinfo *ndi) 603167308Smarius{ 604167308Smarius int rv; 605167308Smarius 606167308Smarius rv = 0; 607167308Smarius rv += resource_list_print_type(&ndi->ndi_rl, "mem", SYS_RES_MEMORY, 608297199Sjhibbits "%#jx"); 609167308Smarius rv += resource_list_print_type(&ndi->ndi_rl, "irq", SYS_RES_IRQ, 610297199Sjhibbits "%jd"); 611167308Smarius return (rv); 612167308Smarius} 613