ofw_pci.c revision 231003
1230993Snwhitehorn/*- 2230993Snwhitehorn * Copyright (c) 2011 Nathan Whitehorn 3230993Snwhitehorn * All rights reserved. 4230993Snwhitehorn * 5230993Snwhitehorn * Redistribution and use in source and binary forms, with or without 6230993Snwhitehorn * modification, are permitted provided that the following conditions 7230993Snwhitehorn * are met: 8230993Snwhitehorn * 1. Redistributions of source code must retain the above copyright 9230993Snwhitehorn * notice, this list of conditions and the following disclaimer. 10230993Snwhitehorn * 2. Redistributions in binary form must reproduce the above copyright 11230993Snwhitehorn * notice, this list of conditions and the following disclaimer in the 12230993Snwhitehorn * documentation and/or other materials provided with the distribution. 13230993Snwhitehorn * 14230993Snwhitehorn * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15230993Snwhitehorn * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16230993Snwhitehorn * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17230993Snwhitehorn * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18230993Snwhitehorn * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19230993Snwhitehorn * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20230993Snwhitehorn * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21230993Snwhitehorn * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22230993Snwhitehorn * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23230993Snwhitehorn * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24230993Snwhitehorn * SUCH DAMAGE. 25230993Snwhitehorn */ 26230993Snwhitehorn 27230993Snwhitehorn#include <sys/cdefs.h> 28230993Snwhitehorn__FBSDID("$FreeBSD: head/sys/powerpc/ofw/ofw_pci.c 231003 2012-02-05 00:51:59Z nwhitehorn $"); 29230993Snwhitehorn#include <sys/param.h> 30230993Snwhitehorn#include <sys/systm.h> 31230993Snwhitehorn#include <sys/module.h> 32230993Snwhitehorn#include <sys/bus.h> 33230993Snwhitehorn#include <sys/conf.h> 34230993Snwhitehorn#include <sys/kernel.h> 35230993Snwhitehorn 36230993Snwhitehorn#include <dev/ofw/openfirm.h> 37230993Snwhitehorn#include <dev/ofw/ofw_pci.h> 38230993Snwhitehorn#include <dev/ofw/ofw_bus.h> 39230993Snwhitehorn#include <dev/ofw/ofw_bus_subr.h> 40230993Snwhitehorn 41230993Snwhitehorn#include <dev/pci/pcivar.h> 42230993Snwhitehorn#include <dev/pci/pcireg.h> 43230993Snwhitehorn 44230993Snwhitehorn#include <machine/bus.h> 45230993Snwhitehorn#include <machine/intr_machdep.h> 46230993Snwhitehorn#include <machine/md_var.h> 47230993Snwhitehorn#include <machine/pio.h> 48230993Snwhitehorn#include <machine/resource.h> 49230993Snwhitehorn 50230993Snwhitehorn#include <sys/rman.h> 51230993Snwhitehorn 52230993Snwhitehorn#include <vm/vm.h> 53230993Snwhitehorn#include <vm/pmap.h> 54230993Snwhitehorn 55230993Snwhitehorn#include <powerpc/ofw/ofw_pci.h> 56230993Snwhitehorn 57230993Snwhitehorn#include "pcib_if.h" 58230993Snwhitehorn 59230993Snwhitehorn/* 60230993Snwhitehorn * Bus interface. 61230993Snwhitehorn */ 62230993Snwhitehornstatic int ofw_pci_read_ivar(device_t, device_t, int, 63230993Snwhitehorn uintptr_t *); 64230993Snwhitehornstatic struct resource * ofw_pci_alloc_resource(device_t bus, 65230993Snwhitehorn device_t child, int type, int *rid, u_long start, 66230993Snwhitehorn u_long end, u_long count, u_int flags); 67230993Snwhitehornstatic int ofw_pci_release_resource(device_t bus, device_t child, 68230993Snwhitehorn int type, int rid, struct resource *res); 69230993Snwhitehornstatic int ofw_pci_activate_resource(device_t bus, device_t child, 70230993Snwhitehorn int type, int rid, struct resource *res); 71230993Snwhitehornstatic int ofw_pci_deactivate_resource(device_t bus, 72230993Snwhitehorn device_t child, int type, int rid, 73230993Snwhitehorn struct resource *res); 74231003Snwhitehornstatic int ofw_pci_adjust_resource(device_t bus, device_t child, 75231003Snwhitehorn int type, struct resource *res, u_long start, 76231003Snwhitehorn u_long end); 77230993Snwhitehorn 78230993Snwhitehorn/* 79230993Snwhitehorn * pcib interface. 80230993Snwhitehorn */ 81230993Snwhitehornstatic int ofw_pci_maxslots(device_t); 82230993Snwhitehornstatic int ofw_pci_route_interrupt(device_t, device_t, int); 83230993Snwhitehorn 84230993Snwhitehorn/* 85230993Snwhitehorn * ofw_bus interface 86230993Snwhitehorn */ 87230993Snwhitehornstatic phandle_t ofw_pci_get_node(device_t bus, device_t dev); 88230993Snwhitehorn 89230993Snwhitehorn/* 90230993Snwhitehorn * local methods 91230993Snwhitehorn */ 92230993Snwhitehorn 93230993Snwhitehornstatic int ofw_pci_nranges(phandle_t node); 94230993Snwhitehornstatic int ofw_pci_fill_ranges(phandle_t node, struct ofw_pci_range *ranges); 95230993Snwhitehorn 96230993Snwhitehorn/* 97230993Snwhitehorn * Driver methods. 98230993Snwhitehorn */ 99230993Snwhitehornstatic device_method_t ofw_pci_methods[] = { 100230993Snwhitehorn /* Device interface */ 101230993Snwhitehorn DEVMETHOD(device_attach, ofw_pci_attach), 102230993Snwhitehorn 103230993Snwhitehorn /* Bus interface */ 104230993Snwhitehorn DEVMETHOD(bus_print_child, bus_generic_print_child), 105230993Snwhitehorn DEVMETHOD(bus_read_ivar, ofw_pci_read_ivar), 106230993Snwhitehorn DEVMETHOD(bus_setup_intr, bus_generic_setup_intr), 107230993Snwhitehorn DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr), 108230993Snwhitehorn DEVMETHOD(bus_alloc_resource, ofw_pci_alloc_resource), 109230993Snwhitehorn DEVMETHOD(bus_release_resource, ofw_pci_release_resource), 110230993Snwhitehorn DEVMETHOD(bus_activate_resource, ofw_pci_activate_resource), 111230993Snwhitehorn DEVMETHOD(bus_deactivate_resource, ofw_pci_deactivate_resource), 112231003Snwhitehorn DEVMETHOD(bus_adjust_resource, ofw_pci_adjust_resource), 113230993Snwhitehorn 114230993Snwhitehorn /* pcib interface */ 115230993Snwhitehorn DEVMETHOD(pcib_maxslots, ofw_pci_maxslots), 116230993Snwhitehorn DEVMETHOD(pcib_route_interrupt, ofw_pci_route_interrupt), 117230993Snwhitehorn 118230993Snwhitehorn /* ofw_bus interface */ 119230993Snwhitehorn DEVMETHOD(ofw_bus_get_node, ofw_pci_get_node), 120230993Snwhitehorn 121230993Snwhitehorn DEVMETHOD_END 122230993Snwhitehorn}; 123230993Snwhitehorn 124230993SnwhitehornDEFINE_CLASS_0(ofw_pci, ofw_pci_driver, ofw_pci_methods, 0); 125230993Snwhitehorn 126230993Snwhitehornint 127230993Snwhitehornofw_pci_attach(device_t dev) 128230993Snwhitehorn{ 129230993Snwhitehorn struct ofw_pci_softc *sc; 130230993Snwhitehorn phandle_t node; 131230993Snwhitehorn u_int32_t busrange[2]; 132230993Snwhitehorn struct ofw_pci_range *rp; 133230993Snwhitehorn int error; 134230993Snwhitehorn 135230993Snwhitehorn node = ofw_bus_get_node(dev); 136230993Snwhitehorn sc = device_get_softc(dev); 137230993Snwhitehorn 138230993Snwhitehorn if (OF_getprop(node, "reg", &sc->sc_pcir, sizeof(sc->sc_pcir)) == -1) 139230993Snwhitehorn return (ENXIO); 140230993Snwhitehorn 141230993Snwhitehorn if (OF_getprop(node, "bus-range", busrange, sizeof(busrange)) != 8) 142230993Snwhitehorn busrange[0] = 0; 143230993Snwhitehorn 144230993Snwhitehorn sc->sc_dev = dev; 145230993Snwhitehorn sc->sc_node = node; 146230993Snwhitehorn sc->sc_bus = busrange[0]; 147230993Snwhitehorn 148230993Snwhitehorn if (sc->sc_quirks & OFW_PCI_QUIRK_RANGES_ON_CHILDREN) { 149230993Snwhitehorn phandle_t c; 150230993Snwhitehorn int n, i; 151230993Snwhitehorn 152230993Snwhitehorn sc->sc_nrange = 0; 153230993Snwhitehorn for (c = OF_child(node); c != 0; c = OF_peer(c)) { 154230993Snwhitehorn n = ofw_pci_nranges(c); 155230993Snwhitehorn if (n > 0) 156230993Snwhitehorn sc->sc_nrange += n; 157230993Snwhitehorn } 158230993Snwhitehorn if (sc->sc_nrange == 0) 159230993Snwhitehorn return (ENXIO); 160230993Snwhitehorn sc->sc_range = malloc(sc->sc_nrange * sizeof(sc->sc_range[0]), 161230993Snwhitehorn M_DEVBUF, M_WAITOK); 162230993Snwhitehorn i = 0; 163230993Snwhitehorn for (c = OF_child(node); c != 0; c = OF_peer(c)) { 164230993Snwhitehorn n = ofw_pci_fill_ranges(c, &sc->sc_range[i]); 165230993Snwhitehorn if (n > 0) 166230993Snwhitehorn i += n; 167230993Snwhitehorn } 168230993Snwhitehorn KASSERT(i == sc->sc_nrange, ("range count mismatch")); 169230993Snwhitehorn } else { 170230993Snwhitehorn sc->sc_nrange = ofw_pci_nranges(node); 171230993Snwhitehorn if (sc->sc_nrange <= 0) { 172230993Snwhitehorn device_printf(dev, "could not get ranges\n"); 173230993Snwhitehorn return (ENXIO); 174230993Snwhitehorn } 175230993Snwhitehorn sc->sc_range = malloc(sc->sc_nrange * sizeof(sc->sc_range[0]), 176230993Snwhitehorn M_DEVBUF, M_WAITOK); 177230993Snwhitehorn ofw_pci_fill_ranges(node, sc->sc_range); 178230993Snwhitehorn } 179230993Snwhitehorn 180230993Snwhitehorn sc->sc_io_rman.rm_type = RMAN_ARRAY; 181230993Snwhitehorn sc->sc_io_rman.rm_descr = "PCI I/O Ports"; 182230993Snwhitehorn error = rman_init(&sc->sc_io_rman); 183230993Snwhitehorn if (error) { 184230993Snwhitehorn device_printf(dev, "rman_init() failed. error = %d\n", error); 185230993Snwhitehorn return (error); 186230993Snwhitehorn } 187230993Snwhitehorn 188230993Snwhitehorn sc->sc_mem_rman.rm_type = RMAN_ARRAY; 189230993Snwhitehorn sc->sc_mem_rman.rm_descr = "PCI Memory"; 190230993Snwhitehorn error = rman_init(&sc->sc_mem_rman); 191230993Snwhitehorn if (error) { 192230993Snwhitehorn device_printf(dev, "rman_init() failed. error = %d\n", error); 193230993Snwhitehorn return (error); 194230993Snwhitehorn } 195230993Snwhitehorn 196230993Snwhitehorn for (rp = sc->sc_range; rp < sc->sc_range + sc->sc_nrange && 197230993Snwhitehorn rp->pci_hi != 0; rp++) { 198230993Snwhitehorn error = 0; 199230993Snwhitehorn 200230993Snwhitehorn switch (rp->pci_hi & OFW_PCI_PHYS_HI_SPACEMASK) { 201230993Snwhitehorn case OFW_PCI_PHYS_HI_SPACE_CONFIG: 202230993Snwhitehorn break; 203230993Snwhitehorn case OFW_PCI_PHYS_HI_SPACE_IO: 204230993Snwhitehorn error = rman_manage_region(&sc->sc_io_rman, rp->pci, 205230993Snwhitehorn rp->pci + rp->size - 1); 206230993Snwhitehorn break; 207230993Snwhitehorn case OFW_PCI_PHYS_HI_SPACE_MEM32: 208230993Snwhitehorn case OFW_PCI_PHYS_HI_SPACE_MEM64: 209230993Snwhitehorn error = rman_manage_region(&sc->sc_mem_rman, rp->pci, 210230993Snwhitehorn rp->pci + rp->size - 1); 211230993Snwhitehorn break; 212230993Snwhitehorn } 213230993Snwhitehorn 214230993Snwhitehorn if (error) { 215230993Snwhitehorn device_printf(dev, 216230993Snwhitehorn "rman_manage_region(%x, %#jx, %#jx) failed. " 217230993Snwhitehorn "error = %d\n", rp->pci_hi & 218230993Snwhitehorn OFW_PCI_PHYS_HI_SPACEMASK, rp->pci, 219230993Snwhitehorn rp->pci + rp->size - 1, error); 220230993Snwhitehorn panic("AHOY"); 221230993Snwhitehorn return (error); 222230993Snwhitehorn } 223230993Snwhitehorn } 224230993Snwhitehorn 225230993Snwhitehorn ofw_bus_setup_iinfo(node, &sc->sc_pci_iinfo, sizeof(cell_t)); 226230993Snwhitehorn 227230993Snwhitehorn device_add_child(dev, "pci", device_get_unit(dev)); 228230993Snwhitehorn return (bus_generic_attach(dev)); 229230993Snwhitehorn} 230230993Snwhitehorn 231230993Snwhitehornstatic int 232230993Snwhitehornofw_pci_maxslots(device_t dev) 233230993Snwhitehorn{ 234230993Snwhitehorn 235230993Snwhitehorn return (PCI_SLOTMAX); 236230993Snwhitehorn} 237230993Snwhitehorn 238230993Snwhitehornstatic int 239230993Snwhitehornofw_pci_route_interrupt(device_t bus, device_t dev, int pin) 240230993Snwhitehorn{ 241230993Snwhitehorn struct ofw_pci_softc *sc; 242230993Snwhitehorn struct ofw_pci_register reg; 243230993Snwhitehorn uint32_t pintr, mintr; 244230993Snwhitehorn phandle_t iparent; 245230993Snwhitehorn uint8_t maskbuf[sizeof(reg) + sizeof(pintr)]; 246230993Snwhitehorn 247230993Snwhitehorn sc = device_get_softc(bus); 248230993Snwhitehorn pintr = pin; 249230993Snwhitehorn if (ofw_bus_lookup_imap(ofw_bus_get_node(dev), &sc->sc_pci_iinfo, ®, 250230993Snwhitehorn sizeof(reg), &pintr, sizeof(pintr), &mintr, sizeof(mintr), 251230993Snwhitehorn &iparent, maskbuf)) 252230993Snwhitehorn return (MAP_IRQ(iparent, mintr)); 253230993Snwhitehorn 254230993Snwhitehorn /* Maybe it's a real interrupt, not an intpin */ 255230993Snwhitehorn if (pin > 4) 256230993Snwhitehorn return (pin); 257230993Snwhitehorn 258230993Snwhitehorn device_printf(bus, "could not route pin %d for device %d.%d\n", 259230993Snwhitehorn pin, pci_get_slot(dev), pci_get_function(dev)); 260230993Snwhitehorn return (PCI_INVALID_IRQ); 261230993Snwhitehorn} 262230993Snwhitehorn 263230993Snwhitehornstatic int 264230993Snwhitehornofw_pci_read_ivar(device_t dev, device_t child, int which, uintptr_t *result) 265230993Snwhitehorn{ 266230993Snwhitehorn struct ofw_pci_softc *sc; 267230993Snwhitehorn 268230993Snwhitehorn sc = device_get_softc(dev); 269230993Snwhitehorn 270230993Snwhitehorn switch (which) { 271230993Snwhitehorn case PCIB_IVAR_DOMAIN: 272230993Snwhitehorn *result = device_get_unit(dev); 273230993Snwhitehorn return (0); 274230993Snwhitehorn case PCIB_IVAR_BUS: 275230993Snwhitehorn *result = sc->sc_bus; 276230993Snwhitehorn return (0); 277230993Snwhitehorn } 278230993Snwhitehorn 279230993Snwhitehorn return (ENOENT); 280230993Snwhitehorn} 281230993Snwhitehorn 282230993Snwhitehornstatic struct resource * 283230993Snwhitehornofw_pci_alloc_resource(device_t bus, device_t child, int type, int *rid, 284230993Snwhitehorn u_long start, u_long end, u_long count, u_int flags) 285230993Snwhitehorn{ 286230993Snwhitehorn struct ofw_pci_softc *sc; 287230993Snwhitehorn struct resource *rv; 288230993Snwhitehorn struct rman *rm; 289230993Snwhitehorn int needactivate; 290230993Snwhitehorn 291230993Snwhitehorn needactivate = flags & RF_ACTIVE; 292230993Snwhitehorn flags &= ~RF_ACTIVE; 293230993Snwhitehorn 294230993Snwhitehorn sc = device_get_softc(bus); 295230993Snwhitehorn 296230993Snwhitehorn switch (type) { 297230993Snwhitehorn case SYS_RES_MEMORY: 298230993Snwhitehorn rm = &sc->sc_mem_rman; 299230993Snwhitehorn break; 300230993Snwhitehorn 301230993Snwhitehorn case SYS_RES_IOPORT: 302230993Snwhitehorn rm = &sc->sc_io_rman; 303230993Snwhitehorn break; 304230993Snwhitehorn 305230993Snwhitehorn case SYS_RES_IRQ: 306230993Snwhitehorn return (bus_alloc_resource(bus, type, rid, start, end, count, 307230993Snwhitehorn flags)); 308230993Snwhitehorn 309230993Snwhitehorn default: 310230993Snwhitehorn device_printf(bus, "unknown resource request from %s\n", 311230993Snwhitehorn device_get_nameunit(child)); 312230993Snwhitehorn return (NULL); 313230993Snwhitehorn } 314230993Snwhitehorn 315230993Snwhitehorn rv = rman_reserve_resource(rm, start, end, count, flags, child); 316230993Snwhitehorn if (rv == NULL) { 317230993Snwhitehorn device_printf(bus, "failed to reserve resource for %s\n", 318230993Snwhitehorn device_get_nameunit(child)); 319230993Snwhitehorn return (NULL); 320230993Snwhitehorn } 321230993Snwhitehorn 322230993Snwhitehorn rman_set_rid(rv, *rid); 323230993Snwhitehorn 324230993Snwhitehorn if (needactivate) { 325230993Snwhitehorn if (bus_activate_resource(child, type, *rid, rv) != 0) { 326230993Snwhitehorn device_printf(bus, 327230993Snwhitehorn "failed to activate resource for %s\n", 328230993Snwhitehorn device_get_nameunit(child)); 329230993Snwhitehorn rman_release_resource(rv); 330230993Snwhitehorn return (NULL); 331230993Snwhitehorn } 332230993Snwhitehorn } 333230993Snwhitehorn 334230993Snwhitehorn return (rv); 335230993Snwhitehorn} 336230993Snwhitehorn 337230993Snwhitehornstatic int 338230993Snwhitehornofw_pci_release_resource(device_t bus, device_t child, int type, int rid, 339230993Snwhitehorn struct resource *res) 340230993Snwhitehorn{ 341230993Snwhitehorn if (rman_get_flags(res) & RF_ACTIVE) { 342230993Snwhitehorn int error = bus_deactivate_resource(child, type, rid, res); 343230993Snwhitehorn if (error) 344230993Snwhitehorn return error; 345230993Snwhitehorn } 346230993Snwhitehorn 347230993Snwhitehorn return (rman_release_resource(res)); 348230993Snwhitehorn} 349230993Snwhitehorn 350230993Snwhitehornstatic int 351230993Snwhitehornofw_pci_activate_resource(device_t bus, device_t child, int type, int rid, 352230993Snwhitehorn struct resource *res) 353230993Snwhitehorn{ 354230993Snwhitehorn struct ofw_pci_softc *sc; 355230993Snwhitehorn void *p; 356230993Snwhitehorn 357230993Snwhitehorn sc = device_get_softc(bus); 358230993Snwhitehorn 359230993Snwhitehorn if (type == SYS_RES_IRQ) { 360230993Snwhitehorn return (bus_activate_resource(bus, type, rid, res)); 361230993Snwhitehorn } 362230993Snwhitehorn if (type == SYS_RES_MEMORY || type == SYS_RES_IOPORT) { 363230993Snwhitehorn struct ofw_pci_range *rp; 364230993Snwhitehorn vm_offset_t start; 365230993Snwhitehorn int space; 366230993Snwhitehorn 367230993Snwhitehorn start = (vm_offset_t)rman_get_start(res); 368230993Snwhitehorn 369230993Snwhitehorn /* 370230993Snwhitehorn * Map this through the ranges list 371230993Snwhitehorn */ 372230993Snwhitehorn for (rp = sc->sc_range; rp < sc->sc_range + sc->sc_nrange && 373230993Snwhitehorn rp->pci_hi != 0; rp++) { 374230993Snwhitehorn if (start < rp->pci || start >= rp->pci + rp->size) 375230993Snwhitehorn continue; 376230993Snwhitehorn 377230993Snwhitehorn switch (rp->pci_hi & OFW_PCI_PHYS_HI_SPACEMASK) { 378230993Snwhitehorn case OFW_PCI_PHYS_HI_SPACE_IO: 379230993Snwhitehorn space = SYS_RES_IOPORT; 380230993Snwhitehorn break; 381230993Snwhitehorn case OFW_PCI_PHYS_HI_SPACE_MEM32: 382230993Snwhitehorn case OFW_PCI_PHYS_HI_SPACE_MEM64: 383230993Snwhitehorn space = SYS_RES_MEMORY; 384230993Snwhitehorn break; 385230993Snwhitehorn default: 386230993Snwhitehorn space = -1; 387230993Snwhitehorn } 388230993Snwhitehorn 389230993Snwhitehorn if (type == space) { 390230993Snwhitehorn start += (rp->host - rp->pci); 391230993Snwhitehorn break; 392230993Snwhitehorn } 393230993Snwhitehorn } 394230993Snwhitehorn 395230993Snwhitehorn if (bootverbose) 396230993Snwhitehorn printf("ofw_pci mapdev: start %zx, len %ld\n", start, 397230993Snwhitehorn rman_get_size(res)); 398230993Snwhitehorn 399230993Snwhitehorn p = pmap_mapdev(start, (vm_size_t)rman_get_size(res)); 400230993Snwhitehorn if (p == NULL) 401230993Snwhitehorn return (ENOMEM); 402230993Snwhitehorn 403230993Snwhitehorn rman_set_virtual(res, p); 404230993Snwhitehorn rman_set_bustag(res, &bs_le_tag); 405230993Snwhitehorn rman_set_bushandle(res, (u_long)p); 406230993Snwhitehorn } 407230993Snwhitehorn 408230993Snwhitehorn return (rman_activate_resource(res)); 409230993Snwhitehorn} 410230993Snwhitehorn 411230993Snwhitehornstatic int 412230993Snwhitehornofw_pci_deactivate_resource(device_t bus, device_t child, int type, int rid, 413230993Snwhitehorn struct resource *res) 414230993Snwhitehorn{ 415230993Snwhitehorn /* 416230993Snwhitehorn * If this is a memory resource, unmap it. 417230993Snwhitehorn */ 418230993Snwhitehorn if ((type == SYS_RES_MEMORY) || (type == SYS_RES_IOPORT)) { 419230993Snwhitehorn u_int32_t psize; 420230993Snwhitehorn 421230993Snwhitehorn psize = rman_get_size(res); 422230993Snwhitehorn pmap_unmapdev((vm_offset_t)rman_get_virtual(res), psize); 423230993Snwhitehorn } 424230993Snwhitehorn 425230993Snwhitehorn return (rman_deactivate_resource(res)); 426230993Snwhitehorn} 427230993Snwhitehorn 428231003Snwhitehornstatic int 429231003Snwhitehornofw_pci_adjust_resource(device_t bus, device_t child, int type, 430231003Snwhitehorn struct resource *res, u_long start, u_long end) 431231003Snwhitehorn{ 432231003Snwhitehorn struct rman *rm = NULL; 433231003Snwhitehorn struct ofw_pci_softc *sc = device_get_softc(bus); 434231003Snwhitehorn 435231003Snwhitehorn switch (type) { 436231003Snwhitehorn case SYS_RES_MEMORY: 437231003Snwhitehorn rm = &sc->sc_mem_rman; 438231003Snwhitehorn break; 439231003Snwhitehorn case SYS_RES_IOPORT: 440231003Snwhitehorn rm = &sc->sc_io_rman; 441231003Snwhitehorn break; 442231003Snwhitehorn default: 443231003Snwhitehorn return (ENXIO); 444231003Snwhitehorn } 445231003Snwhitehorn 446231003Snwhitehorn if (!rman_is_region_manager(res, rm)) 447231003Snwhitehorn return (EINVAL); 448231003Snwhitehorn return (rman_adjust_resource(res, start, end)); 449231003Snwhitehorn} 450231003Snwhitehorn 451231003Snwhitehorn 452230993Snwhitehornstatic phandle_t 453230993Snwhitehornofw_pci_get_node(device_t bus, device_t dev) 454230993Snwhitehorn{ 455230993Snwhitehorn struct ofw_pci_softc *sc; 456230993Snwhitehorn 457230993Snwhitehorn sc = device_get_softc(bus); 458230993Snwhitehorn /* We only have one child, the PCI bus, which needs our own node. */ 459230993Snwhitehorn 460230993Snwhitehorn return (sc->sc_node); 461230993Snwhitehorn} 462230993Snwhitehorn 463230993Snwhitehornstatic int 464230993Snwhitehornofw_pci_nranges(phandle_t node) 465230993Snwhitehorn{ 466230993Snwhitehorn int host_address_cells = 1, pci_address_cells = 3, size_cells = 2; 467230993Snwhitehorn ssize_t nbase_ranges; 468230993Snwhitehorn 469230993Snwhitehorn OF_getprop(OF_parent(node), "#address-cells", &host_address_cells, 470230993Snwhitehorn sizeof(host_address_cells)); 471230993Snwhitehorn OF_getprop(node, "#address-cells", &pci_address_cells, 472230993Snwhitehorn sizeof(pci_address_cells)); 473230993Snwhitehorn OF_getprop(node, "#size-cells", &size_cells, sizeof(size_cells)); 474230993Snwhitehorn 475230993Snwhitehorn nbase_ranges = OF_getproplen(node, "ranges"); 476230993Snwhitehorn if (nbase_ranges <= 0) 477230993Snwhitehorn return (-1); 478230993Snwhitehorn 479230993Snwhitehorn return (nbase_ranges / sizeof(cell_t) / 480230993Snwhitehorn (pci_address_cells + host_address_cells + size_cells)); 481230993Snwhitehorn} 482230993Snwhitehorn 483230993Snwhitehornstatic int 484230993Snwhitehornofw_pci_fill_ranges(phandle_t node, struct ofw_pci_range *ranges) 485230993Snwhitehorn{ 486230993Snwhitehorn int host_address_cells = 1, pci_address_cells = 3, size_cells = 2; 487230993Snwhitehorn cell_t *base_ranges; 488230993Snwhitehorn ssize_t nbase_ranges; 489230993Snwhitehorn int nranges; 490230993Snwhitehorn int i, j, k; 491230993Snwhitehorn 492230993Snwhitehorn OF_getprop(OF_parent(node), "#address-cells", &host_address_cells, 493230993Snwhitehorn sizeof(host_address_cells)); 494230993Snwhitehorn OF_getprop(node, "#address-cells", &pci_address_cells, 495230993Snwhitehorn sizeof(pci_address_cells)); 496230993Snwhitehorn OF_getprop(node, "#size-cells", &size_cells, sizeof(size_cells)); 497230993Snwhitehorn 498230993Snwhitehorn nbase_ranges = OF_getproplen(node, "ranges"); 499230993Snwhitehorn if (nbase_ranges <= 0) 500230993Snwhitehorn return (-1); 501230993Snwhitehorn nranges = nbase_ranges / sizeof(cell_t) / 502230993Snwhitehorn (pci_address_cells + host_address_cells + size_cells); 503230993Snwhitehorn 504230993Snwhitehorn base_ranges = malloc(nbase_ranges, M_DEVBUF, M_WAITOK); 505230993Snwhitehorn OF_getprop(node, "ranges", base_ranges, nbase_ranges); 506230993Snwhitehorn 507230993Snwhitehorn for (i = 0, j = 0; i < nranges; i++) { 508230993Snwhitehorn ranges[i].pci_hi = base_ranges[j++]; 509230993Snwhitehorn ranges[i].pci = 0; 510230993Snwhitehorn for (k = 0; k < pci_address_cells - 1; k++) { 511230993Snwhitehorn ranges[i].pci <<= 32; 512230993Snwhitehorn ranges[i].pci |= base_ranges[j++]; 513230993Snwhitehorn } 514230993Snwhitehorn ranges[i].host = 0; 515230993Snwhitehorn for (k = 0; k < host_address_cells; k++) { 516230993Snwhitehorn ranges[i].host <<= 32; 517230993Snwhitehorn ranges[i].host |= base_ranges[j++]; 518230993Snwhitehorn } 519230993Snwhitehorn ranges[i].size = 0; 520230993Snwhitehorn for (k = 0; k < size_cells; k++) { 521230993Snwhitehorn ranges[i].size <<= 32; 522230993Snwhitehorn ranges[i].size |= base_ranges[j++]; 523230993Snwhitehorn } 524230993Snwhitehorn } 525230993Snwhitehorn 526230993Snwhitehorn free(base_ranges, M_DEVBUF); 527230993Snwhitehorn return (nranges); 528230993Snwhitehorn} 529230993Snwhitehorn 530