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("$FreeBSD$"); 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 127265954Sianofw_pci_init(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); 137265954Sian sc->sc_initialized = 1; 138230993Snwhitehorn 139230993Snwhitehorn if (OF_getprop(node, "reg", &sc->sc_pcir, sizeof(sc->sc_pcir)) == -1) 140230993Snwhitehorn return (ENXIO); 141230993Snwhitehorn 142230993Snwhitehorn if (OF_getprop(node, "bus-range", busrange, sizeof(busrange)) != 8) 143230993Snwhitehorn busrange[0] = 0; 144230993Snwhitehorn 145230993Snwhitehorn sc->sc_dev = dev; 146230993Snwhitehorn sc->sc_node = node; 147230993Snwhitehorn sc->sc_bus = busrange[0]; 148230993Snwhitehorn 149230993Snwhitehorn if (sc->sc_quirks & OFW_PCI_QUIRK_RANGES_ON_CHILDREN) { 150230993Snwhitehorn phandle_t c; 151230993Snwhitehorn int n, i; 152230993Snwhitehorn 153230993Snwhitehorn sc->sc_nrange = 0; 154230993Snwhitehorn for (c = OF_child(node); c != 0; c = OF_peer(c)) { 155230993Snwhitehorn n = ofw_pci_nranges(c); 156230993Snwhitehorn if (n > 0) 157230993Snwhitehorn sc->sc_nrange += n; 158230993Snwhitehorn } 159230993Snwhitehorn if (sc->sc_nrange == 0) 160230993Snwhitehorn return (ENXIO); 161230993Snwhitehorn sc->sc_range = malloc(sc->sc_nrange * sizeof(sc->sc_range[0]), 162230993Snwhitehorn M_DEVBUF, M_WAITOK); 163230993Snwhitehorn i = 0; 164230993Snwhitehorn for (c = OF_child(node); c != 0; c = OF_peer(c)) { 165230993Snwhitehorn n = ofw_pci_fill_ranges(c, &sc->sc_range[i]); 166230993Snwhitehorn if (n > 0) 167230993Snwhitehorn i += n; 168230993Snwhitehorn } 169230993Snwhitehorn KASSERT(i == sc->sc_nrange, ("range count mismatch")); 170230993Snwhitehorn } else { 171230993Snwhitehorn sc->sc_nrange = ofw_pci_nranges(node); 172230993Snwhitehorn if (sc->sc_nrange <= 0) { 173230993Snwhitehorn device_printf(dev, "could not get ranges\n"); 174230993Snwhitehorn return (ENXIO); 175230993Snwhitehorn } 176230993Snwhitehorn sc->sc_range = malloc(sc->sc_nrange * sizeof(sc->sc_range[0]), 177230993Snwhitehorn M_DEVBUF, M_WAITOK); 178230993Snwhitehorn ofw_pci_fill_ranges(node, sc->sc_range); 179230993Snwhitehorn } 180230993Snwhitehorn 181230993Snwhitehorn sc->sc_io_rman.rm_type = RMAN_ARRAY; 182230993Snwhitehorn sc->sc_io_rman.rm_descr = "PCI I/O Ports"; 183230993Snwhitehorn error = rman_init(&sc->sc_io_rman); 184230993Snwhitehorn if (error) { 185230993Snwhitehorn device_printf(dev, "rman_init() failed. error = %d\n", error); 186230993Snwhitehorn return (error); 187230993Snwhitehorn } 188230993Snwhitehorn 189230993Snwhitehorn sc->sc_mem_rman.rm_type = RMAN_ARRAY; 190230993Snwhitehorn sc->sc_mem_rman.rm_descr = "PCI Memory"; 191230993Snwhitehorn error = rman_init(&sc->sc_mem_rman); 192230993Snwhitehorn if (error) { 193230993Snwhitehorn device_printf(dev, "rman_init() failed. error = %d\n", error); 194230993Snwhitehorn return (error); 195230993Snwhitehorn } 196230993Snwhitehorn 197230993Snwhitehorn for (rp = sc->sc_range; rp < sc->sc_range + sc->sc_nrange && 198230993Snwhitehorn rp->pci_hi != 0; rp++) { 199230993Snwhitehorn error = 0; 200230993Snwhitehorn 201230993Snwhitehorn switch (rp->pci_hi & OFW_PCI_PHYS_HI_SPACEMASK) { 202230993Snwhitehorn case OFW_PCI_PHYS_HI_SPACE_CONFIG: 203230993Snwhitehorn break; 204230993Snwhitehorn case OFW_PCI_PHYS_HI_SPACE_IO: 205230993Snwhitehorn error = rman_manage_region(&sc->sc_io_rman, rp->pci, 206230993Snwhitehorn rp->pci + rp->size - 1); 207230993Snwhitehorn break; 208230993Snwhitehorn case OFW_PCI_PHYS_HI_SPACE_MEM32: 209230993Snwhitehorn case OFW_PCI_PHYS_HI_SPACE_MEM64: 210230993Snwhitehorn error = rman_manage_region(&sc->sc_mem_rman, rp->pci, 211230993Snwhitehorn rp->pci + rp->size - 1); 212230993Snwhitehorn break; 213230993Snwhitehorn } 214230993Snwhitehorn 215230993Snwhitehorn if (error) { 216230993Snwhitehorn device_printf(dev, 217230993Snwhitehorn "rman_manage_region(%x, %#jx, %#jx) failed. " 218230993Snwhitehorn "error = %d\n", rp->pci_hi & 219230993Snwhitehorn OFW_PCI_PHYS_HI_SPACEMASK, rp->pci, 220230993Snwhitehorn rp->pci + rp->size - 1, error); 221230993Snwhitehorn return (error); 222230993Snwhitehorn } 223230993Snwhitehorn } 224230993Snwhitehorn 225230993Snwhitehorn ofw_bus_setup_iinfo(node, &sc->sc_pci_iinfo, sizeof(cell_t)); 226230993Snwhitehorn 227265954Sian return (error); 228265954Sian} 229265954Sian 230265954Sianint 231265954Sianofw_pci_attach(device_t dev) 232265954Sian{ 233265954Sian struct ofw_pci_softc *sc; 234265954Sian int error; 235265954Sian 236265954Sian sc = device_get_softc(dev); 237265954Sian if (!sc->sc_initialized) { 238265954Sian error = ofw_pci_init(dev); 239265954Sian if (error) 240265954Sian return (error); 241265954Sian } 242265954Sian 243230993Snwhitehorn device_add_child(dev, "pci", device_get_unit(dev)); 244230993Snwhitehorn return (bus_generic_attach(dev)); 245230993Snwhitehorn} 246230993Snwhitehorn 247230993Snwhitehornstatic int 248230993Snwhitehornofw_pci_maxslots(device_t dev) 249230993Snwhitehorn{ 250230993Snwhitehorn 251230993Snwhitehorn return (PCI_SLOTMAX); 252230993Snwhitehorn} 253230993Snwhitehorn 254230993Snwhitehornstatic int 255230993Snwhitehornofw_pci_route_interrupt(device_t bus, device_t dev, int pin) 256230993Snwhitehorn{ 257230993Snwhitehorn struct ofw_pci_softc *sc; 258230993Snwhitehorn struct ofw_pci_register reg; 259266020Sian uint32_t pintr, mintr[2]; 260266020Sian int intrcells; 261230993Snwhitehorn phandle_t iparent; 262230993Snwhitehorn 263230993Snwhitehorn sc = device_get_softc(bus); 264230993Snwhitehorn pintr = pin; 265265954Sian 266265954Sian /* Fabricate imap information in case this isn't an OFW device */ 267265954Sian bzero(®, sizeof(reg)); 268265954Sian reg.phys_hi = (pci_get_bus(dev) << OFW_PCI_PHYS_HI_BUSSHIFT) | 269265954Sian (pci_get_slot(dev) << OFW_PCI_PHYS_HI_DEVICESHIFT) | 270265954Sian (pci_get_function(dev) << OFW_PCI_PHYS_HI_FUNCTIONSHIFT); 271265954Sian 272266020Sian intrcells = ofw_bus_lookup_imap(ofw_bus_get_node(dev), 273266020Sian &sc->sc_pci_iinfo, ®, sizeof(reg), &pintr, sizeof(pintr), 274266020Sian mintr, sizeof(mintr), &iparent); 275266020Sian if (intrcells) { 276266128Sian pintr = ofw_bus_map_intr(dev, iparent, intrcells, mintr); 277266020Sian return (pintr); 278266020Sian } 279230993Snwhitehorn 280230993Snwhitehorn /* Maybe it's a real interrupt, not an intpin */ 281230993Snwhitehorn if (pin > 4) 282230993Snwhitehorn return (pin); 283230993Snwhitehorn 284230993Snwhitehorn device_printf(bus, "could not route pin %d for device %d.%d\n", 285230993Snwhitehorn pin, pci_get_slot(dev), pci_get_function(dev)); 286230993Snwhitehorn return (PCI_INVALID_IRQ); 287230993Snwhitehorn} 288230993Snwhitehorn 289230993Snwhitehornstatic int 290230993Snwhitehornofw_pci_read_ivar(device_t dev, device_t child, int which, uintptr_t *result) 291230993Snwhitehorn{ 292230993Snwhitehorn struct ofw_pci_softc *sc; 293230993Snwhitehorn 294230993Snwhitehorn sc = device_get_softc(dev); 295230993Snwhitehorn 296230993Snwhitehorn switch (which) { 297230993Snwhitehorn case PCIB_IVAR_DOMAIN: 298230993Snwhitehorn *result = device_get_unit(dev); 299230993Snwhitehorn return (0); 300230993Snwhitehorn case PCIB_IVAR_BUS: 301230993Snwhitehorn *result = sc->sc_bus; 302230993Snwhitehorn return (0); 303230993Snwhitehorn } 304230993Snwhitehorn 305230993Snwhitehorn return (ENOENT); 306230993Snwhitehorn} 307230993Snwhitehorn 308230993Snwhitehornstatic struct resource * 309230993Snwhitehornofw_pci_alloc_resource(device_t bus, device_t child, int type, int *rid, 310230993Snwhitehorn u_long start, u_long end, u_long count, u_int flags) 311230993Snwhitehorn{ 312230993Snwhitehorn struct ofw_pci_softc *sc; 313230993Snwhitehorn struct resource *rv; 314230993Snwhitehorn struct rman *rm; 315230993Snwhitehorn int needactivate; 316230993Snwhitehorn 317230993Snwhitehorn needactivate = flags & RF_ACTIVE; 318230993Snwhitehorn flags &= ~RF_ACTIVE; 319230993Snwhitehorn 320230993Snwhitehorn sc = device_get_softc(bus); 321230993Snwhitehorn 322230993Snwhitehorn switch (type) { 323230993Snwhitehorn case SYS_RES_MEMORY: 324230993Snwhitehorn rm = &sc->sc_mem_rman; 325230993Snwhitehorn break; 326230993Snwhitehorn 327230993Snwhitehorn case SYS_RES_IOPORT: 328230993Snwhitehorn rm = &sc->sc_io_rman; 329230993Snwhitehorn break; 330230993Snwhitehorn 331230993Snwhitehorn case SYS_RES_IRQ: 332230993Snwhitehorn return (bus_alloc_resource(bus, type, rid, start, end, count, 333230993Snwhitehorn flags)); 334230993Snwhitehorn 335230993Snwhitehorn default: 336230993Snwhitehorn device_printf(bus, "unknown resource request from %s\n", 337230993Snwhitehorn device_get_nameunit(child)); 338230993Snwhitehorn return (NULL); 339230993Snwhitehorn } 340230993Snwhitehorn 341230993Snwhitehorn rv = rman_reserve_resource(rm, start, end, count, flags, child); 342230993Snwhitehorn if (rv == NULL) { 343230993Snwhitehorn device_printf(bus, "failed to reserve resource for %s\n", 344230993Snwhitehorn device_get_nameunit(child)); 345230993Snwhitehorn return (NULL); 346230993Snwhitehorn } 347230993Snwhitehorn 348230993Snwhitehorn rman_set_rid(rv, *rid); 349230993Snwhitehorn 350230993Snwhitehorn if (needactivate) { 351230993Snwhitehorn if (bus_activate_resource(child, type, *rid, rv) != 0) { 352230993Snwhitehorn device_printf(bus, 353230993Snwhitehorn "failed to activate resource for %s\n", 354230993Snwhitehorn device_get_nameunit(child)); 355230993Snwhitehorn rman_release_resource(rv); 356230993Snwhitehorn return (NULL); 357230993Snwhitehorn } 358230993Snwhitehorn } 359230993Snwhitehorn 360230993Snwhitehorn return (rv); 361230993Snwhitehorn} 362230993Snwhitehorn 363230993Snwhitehornstatic int 364230993Snwhitehornofw_pci_release_resource(device_t bus, device_t child, int type, int rid, 365230993Snwhitehorn struct resource *res) 366230993Snwhitehorn{ 367230993Snwhitehorn if (rman_get_flags(res) & RF_ACTIVE) { 368230993Snwhitehorn int error = bus_deactivate_resource(child, type, rid, res); 369230993Snwhitehorn if (error) 370230993Snwhitehorn return error; 371230993Snwhitehorn } 372230993Snwhitehorn 373230993Snwhitehorn return (rman_release_resource(res)); 374230993Snwhitehorn} 375230993Snwhitehorn 376230993Snwhitehornstatic int 377230993Snwhitehornofw_pci_activate_resource(device_t bus, device_t child, int type, int rid, 378230993Snwhitehorn struct resource *res) 379230993Snwhitehorn{ 380230993Snwhitehorn struct ofw_pci_softc *sc; 381230993Snwhitehorn void *p; 382230993Snwhitehorn 383230993Snwhitehorn sc = device_get_softc(bus); 384230993Snwhitehorn 385230993Snwhitehorn if (type == SYS_RES_IRQ) { 386230993Snwhitehorn return (bus_activate_resource(bus, type, rid, res)); 387230993Snwhitehorn } 388230993Snwhitehorn if (type == SYS_RES_MEMORY || type == SYS_RES_IOPORT) { 389230993Snwhitehorn struct ofw_pci_range *rp; 390230993Snwhitehorn vm_offset_t start; 391230993Snwhitehorn int space; 392230993Snwhitehorn 393230993Snwhitehorn start = (vm_offset_t)rman_get_start(res); 394230993Snwhitehorn 395230993Snwhitehorn /* 396230993Snwhitehorn * Map this through the ranges list 397230993Snwhitehorn */ 398230993Snwhitehorn for (rp = sc->sc_range; rp < sc->sc_range + sc->sc_nrange && 399230993Snwhitehorn rp->pci_hi != 0; rp++) { 400230993Snwhitehorn if (start < rp->pci || start >= rp->pci + rp->size) 401230993Snwhitehorn continue; 402230993Snwhitehorn 403230993Snwhitehorn switch (rp->pci_hi & OFW_PCI_PHYS_HI_SPACEMASK) { 404230993Snwhitehorn case OFW_PCI_PHYS_HI_SPACE_IO: 405230993Snwhitehorn space = SYS_RES_IOPORT; 406230993Snwhitehorn break; 407230993Snwhitehorn case OFW_PCI_PHYS_HI_SPACE_MEM32: 408230993Snwhitehorn case OFW_PCI_PHYS_HI_SPACE_MEM64: 409230993Snwhitehorn space = SYS_RES_MEMORY; 410230993Snwhitehorn break; 411230993Snwhitehorn default: 412230993Snwhitehorn space = -1; 413230993Snwhitehorn } 414230993Snwhitehorn 415230993Snwhitehorn if (type == space) { 416230993Snwhitehorn start += (rp->host - rp->pci); 417230993Snwhitehorn break; 418230993Snwhitehorn } 419230993Snwhitehorn } 420230993Snwhitehorn 421230993Snwhitehorn if (bootverbose) 422230993Snwhitehorn printf("ofw_pci mapdev: start %zx, len %ld\n", start, 423230993Snwhitehorn rman_get_size(res)); 424230993Snwhitehorn 425230993Snwhitehorn p = pmap_mapdev(start, (vm_size_t)rman_get_size(res)); 426230993Snwhitehorn if (p == NULL) 427230993Snwhitehorn return (ENOMEM); 428230993Snwhitehorn 429230993Snwhitehorn rman_set_virtual(res, p); 430230993Snwhitehorn rman_set_bustag(res, &bs_le_tag); 431230993Snwhitehorn rman_set_bushandle(res, (u_long)p); 432230993Snwhitehorn } 433230993Snwhitehorn 434230993Snwhitehorn return (rman_activate_resource(res)); 435230993Snwhitehorn} 436230993Snwhitehorn 437230993Snwhitehornstatic int 438230993Snwhitehornofw_pci_deactivate_resource(device_t bus, device_t child, int type, int rid, 439230993Snwhitehorn struct resource *res) 440230993Snwhitehorn{ 441230993Snwhitehorn /* 442230993Snwhitehorn * If this is a memory resource, unmap it. 443230993Snwhitehorn */ 444230993Snwhitehorn if ((type == SYS_RES_MEMORY) || (type == SYS_RES_IOPORT)) { 445230993Snwhitehorn u_int32_t psize; 446230993Snwhitehorn 447230993Snwhitehorn psize = rman_get_size(res); 448230993Snwhitehorn pmap_unmapdev((vm_offset_t)rman_get_virtual(res), psize); 449230993Snwhitehorn } 450230993Snwhitehorn 451230993Snwhitehorn return (rman_deactivate_resource(res)); 452230993Snwhitehorn} 453230993Snwhitehorn 454231003Snwhitehornstatic int 455231003Snwhitehornofw_pci_adjust_resource(device_t bus, device_t child, int type, 456231003Snwhitehorn struct resource *res, u_long start, u_long end) 457231003Snwhitehorn{ 458231003Snwhitehorn struct rman *rm = NULL; 459231003Snwhitehorn struct ofw_pci_softc *sc = device_get_softc(bus); 460231003Snwhitehorn 461231149Snwhitehorn KASSERT(!(rman_get_flags(res) & RF_ACTIVE), 462231149Snwhitehorn ("active resources cannot be adjusted")); 463231149Snwhitehorn if (rman_get_flags(res) & RF_ACTIVE) 464231149Snwhitehorn return (EINVAL); 465231149Snwhitehorn 466231003Snwhitehorn switch (type) { 467231003Snwhitehorn case SYS_RES_MEMORY: 468231003Snwhitehorn rm = &sc->sc_mem_rman; 469231003Snwhitehorn break; 470231003Snwhitehorn case SYS_RES_IOPORT: 471231003Snwhitehorn rm = &sc->sc_io_rman; 472231003Snwhitehorn break; 473231003Snwhitehorn default: 474231003Snwhitehorn return (ENXIO); 475231003Snwhitehorn } 476231003Snwhitehorn 477231003Snwhitehorn if (!rman_is_region_manager(res, rm)) 478231003Snwhitehorn return (EINVAL); 479231026Snwhitehorn 480231149Snwhitehorn return (rman_adjust_resource(res, start, end)); 481231003Snwhitehorn} 482231003Snwhitehorn 483231003Snwhitehorn 484230993Snwhitehornstatic phandle_t 485230993Snwhitehornofw_pci_get_node(device_t bus, device_t dev) 486230993Snwhitehorn{ 487230993Snwhitehorn struct ofw_pci_softc *sc; 488230993Snwhitehorn 489230993Snwhitehorn sc = device_get_softc(bus); 490230993Snwhitehorn /* We only have one child, the PCI bus, which needs our own node. */ 491230993Snwhitehorn 492230993Snwhitehorn return (sc->sc_node); 493230993Snwhitehorn} 494230993Snwhitehorn 495230993Snwhitehornstatic int 496230993Snwhitehornofw_pci_nranges(phandle_t node) 497230993Snwhitehorn{ 498230993Snwhitehorn int host_address_cells = 1, pci_address_cells = 3, size_cells = 2; 499230993Snwhitehorn ssize_t nbase_ranges; 500230993Snwhitehorn 501230993Snwhitehorn OF_getprop(OF_parent(node), "#address-cells", &host_address_cells, 502230993Snwhitehorn sizeof(host_address_cells)); 503230993Snwhitehorn OF_getprop(node, "#address-cells", &pci_address_cells, 504230993Snwhitehorn sizeof(pci_address_cells)); 505230993Snwhitehorn OF_getprop(node, "#size-cells", &size_cells, sizeof(size_cells)); 506230993Snwhitehorn 507230993Snwhitehorn nbase_ranges = OF_getproplen(node, "ranges"); 508230993Snwhitehorn if (nbase_ranges <= 0) 509230993Snwhitehorn return (-1); 510230993Snwhitehorn 511230993Snwhitehorn return (nbase_ranges / sizeof(cell_t) / 512230993Snwhitehorn (pci_address_cells + host_address_cells + size_cells)); 513230993Snwhitehorn} 514230993Snwhitehorn 515230993Snwhitehornstatic int 516230993Snwhitehornofw_pci_fill_ranges(phandle_t node, struct ofw_pci_range *ranges) 517230993Snwhitehorn{ 518230993Snwhitehorn int host_address_cells = 1, pci_address_cells = 3, size_cells = 2; 519230993Snwhitehorn cell_t *base_ranges; 520230993Snwhitehorn ssize_t nbase_ranges; 521230993Snwhitehorn int nranges; 522230993Snwhitehorn int i, j, k; 523230993Snwhitehorn 524230993Snwhitehorn OF_getprop(OF_parent(node), "#address-cells", &host_address_cells, 525230993Snwhitehorn sizeof(host_address_cells)); 526230993Snwhitehorn OF_getprop(node, "#address-cells", &pci_address_cells, 527230993Snwhitehorn sizeof(pci_address_cells)); 528230993Snwhitehorn OF_getprop(node, "#size-cells", &size_cells, sizeof(size_cells)); 529230993Snwhitehorn 530230993Snwhitehorn nbase_ranges = OF_getproplen(node, "ranges"); 531230993Snwhitehorn if (nbase_ranges <= 0) 532230993Snwhitehorn return (-1); 533230993Snwhitehorn nranges = nbase_ranges / sizeof(cell_t) / 534230993Snwhitehorn (pci_address_cells + host_address_cells + size_cells); 535230993Snwhitehorn 536230993Snwhitehorn base_ranges = malloc(nbase_ranges, M_DEVBUF, M_WAITOK); 537230993Snwhitehorn OF_getprop(node, "ranges", base_ranges, nbase_ranges); 538230993Snwhitehorn 539230993Snwhitehorn for (i = 0, j = 0; i < nranges; i++) { 540230993Snwhitehorn ranges[i].pci_hi = base_ranges[j++]; 541230993Snwhitehorn ranges[i].pci = 0; 542230993Snwhitehorn for (k = 0; k < pci_address_cells - 1; k++) { 543230993Snwhitehorn ranges[i].pci <<= 32; 544230993Snwhitehorn ranges[i].pci |= base_ranges[j++]; 545230993Snwhitehorn } 546230993Snwhitehorn ranges[i].host = 0; 547230993Snwhitehorn for (k = 0; k < host_address_cells; k++) { 548230993Snwhitehorn ranges[i].host <<= 32; 549230993Snwhitehorn ranges[i].host |= base_ranges[j++]; 550230993Snwhitehorn } 551230993Snwhitehorn ranges[i].size = 0; 552230993Snwhitehorn for (k = 0; k < size_cells; k++) { 553230993Snwhitehorn ranges[i].size <<= 32; 554230993Snwhitehorn ranges[i].size |= base_ranges[j++]; 555230993Snwhitehorn } 556230993Snwhitehorn } 557230993Snwhitehorn 558230993Snwhitehorn free(base_ranges, M_DEVBUF); 559230993Snwhitehorn return (nranges); 560230993Snwhitehorn} 561230993Snwhitehorn 562