nexus.c revision 225931
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 225931 2011-10-02 23:22:38Z 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; 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; 101167308Smariusstatic ofw_bus_get_devinfo_t nexus_get_devinfo; 10286227Stmm 103185133Smariusstatic int nexus_inlist(const char *, const char *const *); 104167308Smariusstatic struct nexus_devinfo * nexus_setup_dinfo(device_t, phandle_t); 105167308Smariusstatic void nexus_destroy_dinfo(struct nexus_devinfo *); 106167308Smariusstatic int nexus_print_res(struct nexus_devinfo *); 107167308Smarius 10886227Stmmstatic device_method_t nexus_methods[] = { 10986227Stmm /* Device interface */ 11086227Stmm DEVMETHOD(device_probe, nexus_probe), 111128776Stmm DEVMETHOD(device_attach, nexus_attach), 11286227Stmm DEVMETHOD(device_detach, bus_generic_detach), 11386227Stmm DEVMETHOD(device_shutdown, bus_generic_shutdown), 11486227Stmm DEVMETHOD(device_suspend, bus_generic_suspend), 11586227Stmm DEVMETHOD(device_resume, bus_generic_resume), 11686227Stmm 117167308Smarius /* Bus interface */ 118167308Smarius DEVMETHOD(bus_print_child, nexus_print_child), 119167308Smarius DEVMETHOD(bus_probe_nomatch, nexus_probe_nomatch), 120167308Smarius DEVMETHOD(bus_read_ivar, bus_generic_read_ivar), 121167308Smarius DEVMETHOD(bus_write_ivar, bus_generic_write_ivar), 122146474Smarius DEVMETHOD(bus_add_child, nexus_add_child), 12386227Stmm DEVMETHOD(bus_alloc_resource, nexus_alloc_resource), 12486227Stmm DEVMETHOD(bus_activate_resource, nexus_activate_resource), 12586227Stmm DEVMETHOD(bus_deactivate_resource, nexus_deactivate_resource), 126225931Smarius DEVMETHOD(bus_adjust_resource, nexus_adjust_resource), 12786227Stmm DEVMETHOD(bus_release_resource, nexus_release_resource), 128167308Smarius DEVMETHOD(bus_setup_intr, nexus_setup_intr), 129167308Smarius DEVMETHOD(bus_teardown_intr, nexus_teardown_intr), 130190099Smarius DEVMETHOD(bus_set_resource, bus_generic_rl_set_resource), 131190099Smarius DEVMETHOD(bus_get_resource, bus_generic_rl_get_resource), 132190099Smarius DEVMETHOD(bus_get_resource_list, nexus_get_resource_list), 133178443Smarius#ifdef SMP 134178443Smarius DEVMETHOD(bus_bind_intr, nexus_bind_intr), 135178443Smarius#endif 136200948Smarius DEVMETHOD(bus_describe_intr, nexus_describe_intr), 137167308Smarius DEVMETHOD(bus_get_dma_tag, nexus_get_dma_tag), 13886227Stmm 139167308Smarius /* ofw_bus interface */ 140167308Smarius DEVMETHOD(ofw_bus_get_devinfo, nexus_get_devinfo), 141167308Smarius DEVMETHOD(ofw_bus_get_compat, ofw_bus_gen_get_compat), 142167308Smarius DEVMETHOD(ofw_bus_get_model, ofw_bus_gen_get_model), 143167308Smarius DEVMETHOD(ofw_bus_get_name, ofw_bus_gen_get_name), 144167308Smarius DEVMETHOD(ofw_bus_get_node, ofw_bus_gen_get_node), 145167308Smarius DEVMETHOD(ofw_bus_get_type, ofw_bus_gen_get_type), 146167308Smarius 147190099Smarius KOBJMETHOD_END 14886227Stmm}; 14986227Stmm 15086227Stmmstatic devclass_t nexus_devclass; 15186227Stmm 152167308SmariusDEFINE_CLASS_0(nexus, nexus_driver, nexus_methods, sizeof(struct nexus_softc)); 153200874SmariusEARLY_DRIVER_MODULE(nexus, root, nexus_driver, nexus_devclass, 0, 0, 154200874Smarius BUS_PASS_BUS); 155200815SmariusMODULE_VERSION(nexus, 1); 15686227Stmm 157185133Smariusstatic const char *const nexus_excl_name[] = { 158207240Smarius "FJSV,system", 15990622Stmm "aliases", 160167308Smarius "associations", 16190622Stmm "chosen", 162203844Smarius "cmp", 16390622Stmm "counter-timer", /* No separate device; handled by psycho/sbus */ 164203844Smarius "failsafe", 16586227Stmm "memory", 16690622Stmm "openprom", 16786227Stmm "options", 16886227Stmm "packages", 169207240Smarius "physical-memory", 170167308Smarius "rsc", 171203844Smarius "sgcn", 172203844Smarius "todsg", 17390622Stmm "virtual-memory", 17486227Stmm NULL 17586227Stmm}; 17686227Stmm 177185133Smariusstatic const char *const nexus_excl_type[] = { 178203844Smarius "core", 17986227Stmm "cpu", 18086227Stmm NULL 18186227Stmm}; 18286227Stmm 18386227Stmmextern struct bus_space_tag nexus_bustag; 18486227Stmmextern struct bus_dma_tag nexus_dmatag; 18586227Stmm 18686227Stmmstatic int 187185133Smariusnexus_inlist(const char *name, const char *const *list) 18886227Stmm{ 18986227Stmm int i; 19086227Stmm 191167308Smarius if (name == NULL) 192167308Smarius return (0); 19386227Stmm for (i = 0; list[i] != NULL; i++) 19486227Stmm if (strcmp(name, list[i]) == 0) 19586227Stmm return (1); 19686227Stmm return (0); 19786227Stmm} 19886227Stmm 19986227Stmm#define NEXUS_EXCLUDED(name, type) \ 20086227Stmm (nexus_inlist((name), nexus_excl_name) || \ 20186227Stmm ((type) != NULL && nexus_inlist((type), nexus_excl_type))) 20286227Stmm 20386227Stmmstatic int 20486227Stmmnexus_probe(device_t dev) 20586227Stmm{ 206128776Stmm 207128776Stmm /* Nexus does always match. */ 208133862Smarius device_set_desc(dev, "Open Firmware Nexus device"); 209128776Stmm return (0); 210128776Stmm} 211128776Stmm 212128776Stmmstatic int 213128776Stmmnexus_attach(device_t dev) 214128776Stmm{ 215167308Smarius struct nexus_devinfo *ndi; 216167308Smarius struct nexus_softc *sc; 21786227Stmm device_t cdev; 218167308Smarius phandle_t node; 21986227Stmm 220203844Smarius if (strcmp(device_get_name(device_get_parent(dev)), "root") == 0) { 221203844Smarius node = OF_peer(0); 222203844Smarius if (node == -1) 223203844Smarius panic("%s: OF_peer failed.", __func__); 22486227Stmm 225203844Smarius sc = device_get_softc(dev); 226203844Smarius sc->sc_intr_rman.rm_type = RMAN_ARRAY; 227203844Smarius sc->sc_intr_rman.rm_descr = "Interrupts"; 228203844Smarius sc->sc_mem_rman.rm_type = RMAN_ARRAY; 229203844Smarius sc->sc_mem_rman.rm_descr = "Device Memory"; 230203844Smarius if (rman_init(&sc->sc_intr_rman) != 0 || 231203844Smarius rman_init(&sc->sc_mem_rman) != 0 || 232203844Smarius rman_manage_region(&sc->sc_intr_rman, 0, 233203844Smarius IV_MAX - 1) != 0 || 234203844Smarius rman_manage_region(&sc->sc_mem_rman, 0ULL, ~0ULL) != 0) 235203844Smarius panic("%s: failed to set up rmans.", __func__); 236203844Smarius } else 237203844Smarius node = ofw_bus_get_node(dev); 238146474Smarius 239146474Smarius /* 240146474Smarius * Allow devices to identify. 241146474Smarius */ 242146474Smarius bus_generic_probe(dev); 243146474Smarius 244146474Smarius /* 245146474Smarius * Now walk the OFW tree and attach top-level devices. 246146474Smarius */ 247167308Smarius for (node = OF_child(node); node > 0; node = OF_peer(node)) { 248167308Smarius if ((ndi = nexus_setup_dinfo(dev, node)) == NULL) 24986227Stmm continue; 250167308Smarius cdev = device_add_child(dev, NULL, -1); 251167308Smarius if (cdev == NULL) { 252167308Smarius device_printf(dev, "<%s>: device_add_child failed\n", 253167308Smarius ndi->ndi_obdinfo.obd_name); 254167308Smarius nexus_destroy_dinfo(ndi); 25586227Stmm continue; 25688823Stmm } 257167308Smarius device_set_ivars(cdev, ndi); 25886227Stmm } 259128776Stmm return (bus_generic_attach(dev)); 26086227Stmm} 26186227Stmm 262146474Smariusstatic device_t 263212413Savgnexus_add_child(device_t dev, u_int order, const char *name, int unit) 264146474Smarius{ 265146474Smarius device_t cdev; 266167308Smarius struct nexus_devinfo *ndi; 267146474Smarius 268146474Smarius cdev = device_add_child_ordered(dev, order, name, unit); 269146474Smarius if (cdev == NULL) 270146474Smarius return (NULL); 271146474Smarius 272167308Smarius ndi = malloc(sizeof(*ndi), M_DEVBUF, M_WAITOK | M_ZERO); 273167308Smarius ndi->ndi_obdinfo.obd_node = -1; 274167308Smarius ndi->ndi_obdinfo.obd_name = strdup(name, M_OFWPROP); 275167308Smarius resource_list_init(&ndi->ndi_rl); 276167308Smarius device_set_ivars(cdev, ndi); 277146474Smarius 278146474Smarius return (cdev); 279146474Smarius} 280146474Smarius 281167308Smariusstatic int 282225931Smariusnexus_print_child(device_t bus, device_t child) 28386227Stmm{ 284167308Smarius int rv; 28586227Stmm 286225931Smarius rv = bus_print_child_header(bus, child); 287167308Smarius rv += nexus_print_res(device_get_ivars(child)); 288225931Smarius rv += bus_print_child_footer(bus, child); 289167308Smarius return (rv); 29086227Stmm} 29186227Stmm 292167308Smariusstatic void 293225931Smariusnexus_probe_nomatch(device_t bus, device_t child) 29486227Stmm{ 295167308Smarius const char *type; 29686227Stmm 297225931Smarius device_printf(bus, "<%s>", ofw_bus_get_name(child)); 298167308Smarius nexus_print_res(device_get_ivars(child)); 299167308Smarius type = ofw_bus_get_type(child); 300167308Smarius printf(" type %s (no driver attached)\n", 301167308Smarius type != NULL ? type : "unknown"); 30286227Stmm} 30386227Stmm 30486227Stmmstatic int 305225931Smariusnexus_setup_intr(device_t bus __unused, device_t child, struct resource *r, 306225931Smarius int flags, driver_filter_t *filt, driver_intr_t *intr, void *arg, 307225931Smarius void **cookiep) 30886227Stmm{ 30986227Stmm int error; 31088823Stmm 311225931Smarius if (r == NULL) 312167308Smarius panic("%s: NULL interrupt resource!", __func__); 31386227Stmm 314225931Smarius if ((rman_get_flags(r) & RF_SHAREABLE) == 0) 31586227Stmm flags |= INTR_EXCL; 31686227Stmm 317128776Stmm /* We depend here on rman_activate_resource() being idempotent. */ 318225931Smarius error = rman_activate_resource(r); 31986227Stmm if (error) 32086227Stmm return (error); 32186227Stmm 322225931Smarius error = inthand_add(device_get_nameunit(child), rman_get_start(r), 323166901Spiso filt, intr, arg, flags, cookiep); 32486227Stmm 325167308Smarius /* 326167308Smarius * XXX in case of the AFB/FFB interrupt and a Psycho, Sabre or U2S 327167308Smarius * bridge enable the interrupt in the respective bridge. 328167308Smarius */ 329167308Smarius 33086227Stmm return (error); 33186227Stmm} 33286227Stmm 33386227Stmmstatic int 334225931Smariusnexus_teardown_intr(device_t bus __unused, device_t child __unused, 335225931Smarius struct resource *r, void *ih) 33686227Stmm{ 337146474Smarius 338131535Simp inthand_remove(rman_get_start(r), ih); 33986227Stmm return (0); 34086227Stmm} 34186227Stmm 342178443Smarius#ifdef SMP 343178443Smariusstatic int 344225931Smariusnexus_bind_intr(device_t bus __unused, device_t child __unused, 345225931Smarius struct resource *r, int cpu) 346178443Smarius{ 347178443Smarius 348178443Smarius return (intr_bind(rman_get_start(r), cpu)); 349178443Smarius} 350178443Smarius#endif 351178443Smarius 352200948Smariusstatic int 353225931Smariusnexus_describe_intr(device_t bus __unused, device_t child __unused, 354225931Smarius struct resource *r, void *cookie, const char *descr) 355200948Smarius{ 356200948Smarius 357200948Smarius return (intr_describe(rman_get_start(r), cookie, descr)); 358200948Smarius} 359200948Smarius 36086227Stmmstatic struct resource * 36186227Stmmnexus_alloc_resource(device_t bus, device_t child, int type, int *rid, 36286227Stmm u_long start, u_long end, u_long count, u_int flags) 36386227Stmm{ 364167308Smarius struct nexus_softc *sc; 365167308Smarius struct rman *rm; 366167308Smarius struct resource *rv; 367167308Smarius struct resource_list_entry *rle; 368203844Smarius device_t nexus; 369225931Smarius int isdefault, passthrough; 37086227Stmm 371167308Smarius isdefault = (start == 0UL && end == ~0UL); 372167308Smarius passthrough = (device_get_parent(child) != bus); 373203844Smarius nexus = bus; 374203844Smarius while (strcmp(device_get_name(device_get_parent(nexus)), "root") != 0) 375203844Smarius nexus = device_get_parent(nexus); 376203844Smarius sc = device_get_softc(nexus); 377167308Smarius rle = NULL; 37886227Stmm 379167308Smarius if (!passthrough) { 380167308Smarius rle = resource_list_find(BUS_GET_RESOURCE_LIST(bus, child), 381167308Smarius type, *rid); 382167308Smarius if (rle == NULL) 383167308Smarius return (NULL); 384167308Smarius if (rle->res != NULL) 385167308Smarius panic("%s: resource entry is busy", __func__); 386167308Smarius if (isdefault) { 387167308Smarius start = rle->start; 388167308Smarius count = ulmax(count, rle->count); 389167308Smarius end = ulmax(rle->end, start + count - 1); 390167308Smarius } 391167308Smarius } 392167308Smarius 39386227Stmm switch (type) { 39486227Stmm case SYS_RES_IRQ: 39588823Stmm rm = &sc->sc_intr_rman; 39686227Stmm break; 39788823Stmm case SYS_RES_MEMORY: 39888823Stmm rm = &sc->sc_mem_rman; 39988823Stmm break; 40086227Stmm default: 40186227Stmm return (NULL); 40286227Stmm } 40386227Stmm 404225931Smarius rv = rman_reserve_resource(rm, start, end, count, flags & ~RF_ACTIVE, 405225931Smarius child); 40686227Stmm if (rv == NULL) 40786227Stmm return (NULL); 408157896Simp rman_set_rid(rv, *rid); 40986227Stmm 410225931Smarius if ((flags & RF_ACTIVE) != 0 && bus_activate_resource(child, type, 411225931Smarius *rid, rv) != 0) { 412225931Smarius rman_release_resource(rv); 413225931Smarius return (NULL); 41486227Stmm } 41588823Stmm 416167308Smarius if (!passthrough) { 417167308Smarius rle->res = rv; 418167308Smarius rle->start = rman_get_start(rv); 419167308Smarius rle->end = rman_get_end(rv); 420167308Smarius rle->count = rle->end - rle->start + 1; 421167308Smarius } 422167308Smarius 42386227Stmm return (rv); 42486227Stmm} 42586227Stmm 42686227Stmmstatic int 427225931Smariusnexus_activate_resource(device_t bus __unused, device_t child __unused, 428225931Smarius int type, int rid __unused, struct resource *r) 42986227Stmm{ 43086227Stmm 431225931Smarius if (type == SYS_RES_MEMORY) { 432225931Smarius rman_set_bustag(r, &nexus_bustag); 433225931Smarius rman_set_bushandle(r, rman_get_start(r)); 434225931Smarius } 43586227Stmm return (rman_activate_resource(r)); 43686227Stmm} 43786227Stmm 43886227Stmmstatic int 439225931Smariusnexus_deactivate_resource(device_t bus __unused, device_t child __unused, 440225931Smarius int type __unused, int rid __unused, struct resource *r) 44186227Stmm{ 44288823Stmm 44386227Stmm return (rman_deactivate_resource(r)); 44486227Stmm} 44586227Stmm 44686227Stmmstatic int 447225931Smariusnexus_adjust_resource(device_t bus, device_t child __unused, int type, 448225931Smarius struct resource *r, u_long start, u_long end) 44986227Stmm{ 450225931Smarius struct nexus_softc *sc; 451225931Smarius struct rman *rm; 452225931Smarius device_t nexus; 453225931Smarius 454225931Smarius nexus = bus; 455225931Smarius while (strcmp(device_get_name(device_get_parent(nexus)), "root") != 0) 456225931Smarius nexus = device_get_parent(nexus); 457225931Smarius sc = device_get_softc(nexus); 458225931Smarius switch (type) { 459225931Smarius case SYS_RES_IRQ: 460225931Smarius rm = &sc->sc_intr_rman; 461225931Smarius break; 462225931Smarius case SYS_RES_MEMORY: 463225931Smarius rm = &sc->sc_mem_rman; 464225931Smarius break; 465225931Smarius default: 466225931Smarius return (EINVAL); 467225931Smarius } 468225931Smarius if (rm == NULL) 469225931Smarius return (ENXIO); 470225931Smarius if (rman_is_region_manager(r, rm) == 0) 471225931Smarius return (EINVAL); 472225931Smarius return (rman_adjust_resource(r, start, end)); 473225931Smarius} 474225931Smarius 475225931Smariusstatic int 476225931Smariusnexus_release_resource(device_t bus __unused, device_t child, int type, 477225931Smarius int rid, struct resource *r) 478225931Smarius{ 47986227Stmm int error; 48086227Stmm 481225931Smarius if ((rman_get_flags(r) & RF_ACTIVE) != 0) { 48286227Stmm error = bus_deactivate_resource(child, type, rid, r); 48386227Stmm if (error) 484128776Stmm return (error); 48586227Stmm } 48686227Stmm return (rman_release_resource(r)); 48786227Stmm} 488167308Smarius 489167308Smariusstatic struct resource_list * 490225931Smariusnexus_get_resource_list(device_t bus __unused, device_t child) 491167308Smarius{ 492167308Smarius struct nexus_devinfo *ndi; 493167308Smarius 494167308Smarius ndi = device_get_ivars(child); 495167308Smarius return (&ndi->ndi_rl); 496167308Smarius} 497167308Smarius 498167308Smariusstatic bus_dma_tag_t 499225931Smariusnexus_get_dma_tag(device_t bus __unused, device_t child __unused) 500167308Smarius{ 501167308Smarius 502167308Smarius return (&nexus_dmatag); 503167308Smarius} 504167308Smarius 505167308Smariusstatic const struct ofw_bus_devinfo * 506225931Smariusnexus_get_devinfo(device_t bus __unused, device_t child) 507167308Smarius{ 508167308Smarius struct nexus_devinfo *ndi; 509167308Smarius 510167308Smarius ndi = device_get_ivars(child); 511167308Smarius return (&ndi->ndi_obdinfo); 512167308Smarius} 513167308Smarius 514167308Smariusstatic struct nexus_devinfo * 515167308Smariusnexus_setup_dinfo(device_t dev, phandle_t node) 516167308Smarius{ 517167308Smarius struct nexus_devinfo *ndi; 518167308Smarius struct nexus_regs *reg; 519167308Smarius bus_addr_t phys; 520167308Smarius bus_size_t size; 521167308Smarius uint32_t ign; 522167308Smarius uint32_t *intr; 523167308Smarius int i; 524167308Smarius int nintr; 525167308Smarius int nreg; 526167308Smarius 527167308Smarius ndi = malloc(sizeof(*ndi), M_DEVBUF, M_WAITOK | M_ZERO); 528167308Smarius if (ofw_bus_gen_setup_devinfo(&ndi->ndi_obdinfo, node) != 0) { 529167308Smarius free(ndi, M_DEVBUF); 530167308Smarius return (NULL); 531167308Smarius } 532167308Smarius if (NEXUS_EXCLUDED(ndi->ndi_obdinfo.obd_name, 533167308Smarius ndi->ndi_obdinfo.obd_type)) { 534167308Smarius ofw_bus_gen_destroy_devinfo(&ndi->ndi_obdinfo); 535167308Smarius free(ndi, M_DEVBUF); 536167308Smarius return (NULL); 537167308Smarius } 538167308Smarius resource_list_init(&ndi->ndi_rl); 539167308Smarius nreg = OF_getprop_alloc(node, "reg", sizeof(*reg), (void **)®); 540167308Smarius if (nreg == -1) { 541167308Smarius device_printf(dev, "<%s>: incomplete\n", 542167308Smarius ndi->ndi_obdinfo.obd_name); 543167308Smarius goto fail; 544167308Smarius } 545167308Smarius for (i = 0; i < nreg; i++) { 546167308Smarius phys = NEXUS_REG_PHYS(®[i]); 547167308Smarius size = NEXUS_REG_SIZE(®[i]); 548203844Smarius /* Skip the dummy reg property of glue devices like ssm(4). */ 549203844Smarius if (size != 0) 550203844Smarius resource_list_add(&ndi->ndi_rl, SYS_RES_MEMORY, i, 551203844Smarius phys, phys + size - 1, size); 552167308Smarius } 553167308Smarius free(reg, M_OFWPROP); 554167308Smarius 555167308Smarius nintr = OF_getprop_alloc(node, "interrupts", sizeof(*intr), 556167308Smarius (void **)&intr); 557167308Smarius if (nintr > 0) { 558204152Smarius if (OF_getprop(node, PCPU_GET(impl) < CPU_IMPL_ULTRASPARCIII ? 559167308Smarius "upa-portid" : "portid", &ign, sizeof(ign)) <= 0) { 560167308Smarius device_printf(dev, "<%s>: could not determine portid\n", 561167308Smarius ndi->ndi_obdinfo.obd_name); 562167308Smarius free(intr, M_OFWPROP); 563167308Smarius goto fail; 564167308Smarius } 565167308Smarius 566167308Smarius /* XXX 7-bit MID on Starfire */ 567167308Smarius ign = (ign << INTMAP_IGN_SHIFT) & INTMAP_IGN_MASK; 568167308Smarius for (i = 0; i < nintr; i++) { 569167308Smarius intr[i] |= ign; 570167308Smarius resource_list_add(&ndi->ndi_rl, SYS_RES_IRQ, i, intr[i], 571167308Smarius intr[i], 1); 572167308Smarius } 573167308Smarius free(intr, M_OFWPROP); 574167308Smarius } 575167308Smarius 576167308Smarius return (ndi); 577167308Smarius 578167308Smarius fail: 579167308Smarius nexus_destroy_dinfo(ndi); 580167308Smarius return (NULL); 581167308Smarius} 582167308Smarius 583167308Smariusstatic void 584167308Smariusnexus_destroy_dinfo(struct nexus_devinfo *ndi) 585167308Smarius{ 586167308Smarius 587167308Smarius resource_list_free(&ndi->ndi_rl); 588167308Smarius ofw_bus_gen_destroy_devinfo(&ndi->ndi_obdinfo); 589167308Smarius free(ndi, M_DEVBUF); 590167308Smarius} 591167308Smarius 592167308Smariusstatic int 593167308Smariusnexus_print_res(struct nexus_devinfo *ndi) 594167308Smarius{ 595167308Smarius int rv; 596167308Smarius 597167308Smarius rv = 0; 598167308Smarius rv += resource_list_print_type(&ndi->ndi_rl, "mem", SYS_RES_MEMORY, 599167308Smarius "%#lx"); 600167308Smarius rv += resource_list_print_type(&ndi->ndi_rl, "irq", SYS_RES_IRQ, 601167308Smarius "%ld"); 602167308Smarius return (rv); 603167308Smarius} 604