1 /*- 2 * Copyright (C) 2010 Nathan Whitehorn 3 * Copyright (C) 2011 glevand (geoffrey.levand@mail.ru) 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 19 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 21 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 22 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 23 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 24 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27 #include <sys/cdefs.h> 28 __FBSDID("$FreeBSD$"); 29 30 #include <sys/param.h> 31 #include <sys/systm.h> 32 #include <sys/kernel.h> 33 #include <sys/module.h> 34 #include <sys/malloc.h> 35 #include <sys/bus.h> 36 #include <sys/clock.h> 37 #include <sys/cpu.h> 38 #include <sys/resource.h> 39 #include <sys/rman.h> 40 41 #include <vm/vm.h> 42 #include <vm/pmap.h> 43 44 #include <machine/bus.h> 45 #include <machine/platform.h> 46 #include <machine/pmap.h> 47 #include <machine/resource.h> 48 49 #include "ps3bus.h" 50 #include "ps3-hvcall.h" 51 #include "iommu_if.h" 52 #include "clock_if.h" 53 54 static void ps3bus_identify(driver_t *, device_t); 55 static int ps3bus_probe(device_t); 56 static int ps3bus_attach(device_t); 57 static int ps3bus_print_child(device_t dev, device_t child); 58 static int ps3bus_read_ivar(device_t bus, device_t child, int which, 59 uintptr_t *result); 60 static struct resource *ps3bus_alloc_resource(device_t bus, device_t child, 61 int type, int *rid, u_long start, u_long end, 62 u_long count, u_int flags); 63 static int ps3bus_activate_resource(device_t bus, device_t child, int type, 64 int rid, struct resource *res); 65 static bus_dma_tag_t ps3bus_get_dma_tag(device_t dev, device_t child); 66 static int ps3_iommu_map(device_t dev, bus_dma_segment_t *segs, int *nsegs, bus_addr_t min, bus_addr_t max, bus_size_t alignment, 67 bus_size_t boundary, void *cookie); 68 static int ps3_iommu_unmap(device_t dev, bus_dma_segment_t *segs, 69 int nsegs, void *cookie); 70 static int ps3_gettime(device_t dev, struct timespec *ts); 71 static int ps3_settime(device_t dev, struct timespec *ts); 72 73 struct ps3bus_devinfo { 74 int bus; 75 int dev; 76 uint64_t bustype; 77 uint64_t devtype; 78 int busidx; 79 int devidx; 80 81 struct resource_list resources; 82 bus_dma_tag_t dma_tag; 83 84 struct mtx iommu_mtx; 85 bus_addr_t dma_base[4]; 86 }; 87 88 static MALLOC_DEFINE(M_PS3BUS, "ps3bus", "PS3 system bus device information"); 89 90 enum ps3bus_irq_type { 91 SB_IRQ = 2, 92 OHCI_IRQ = 3, 93 EHCI_IRQ = 4, 94 }; 95 96 enum ps3bus_reg_type { 97 OHCI_REG = 3, 98 EHCI_REG = 4, 99 }; 100 101 static device_method_t ps3bus_methods[] = { 102 /* Device interface */ 103 DEVMETHOD(device_identify, ps3bus_identify), 104 DEVMETHOD(device_probe, ps3bus_probe), 105 DEVMETHOD(device_attach, ps3bus_attach), 106 107 /* Bus interface */ 108 DEVMETHOD(bus_add_child, bus_generic_add_child), 109 DEVMETHOD(bus_get_dma_tag, ps3bus_get_dma_tag), 110 DEVMETHOD(bus_print_child, ps3bus_print_child), 111 DEVMETHOD(bus_read_ivar, ps3bus_read_ivar), 112 DEVMETHOD(bus_alloc_resource, ps3bus_alloc_resource), 113 DEVMETHOD(bus_activate_resource, ps3bus_activate_resource), 114 DEVMETHOD(bus_setup_intr, bus_generic_setup_intr), 115 DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr), 116 117 /* IOMMU interface */ 118 DEVMETHOD(iommu_map, ps3_iommu_map), 119 DEVMETHOD(iommu_unmap, ps3_iommu_unmap), 120 121 /* Clock interface */ 122 DEVMETHOD(clock_gettime, ps3_gettime), 123 DEVMETHOD(clock_settime, ps3_settime), 124 125 DEVMETHOD_END 126 }; 127 128 struct ps3bus_softc { 129 struct rman sc_mem_rman; 130 struct mem_region *regions; 131 int rcount; 132 }; 133 134 static driver_t ps3bus_driver = { 135 "ps3bus", 136 ps3bus_methods, 137 sizeof(struct ps3bus_softc) 138 }; 139 140 static devclass_t ps3bus_devclass; 141 142 DRIVER_MODULE(ps3bus, nexus, ps3bus_driver, ps3bus_devclass, 0, 0); 143 144 static void 145 ps3bus_identify(driver_t *driver, device_t parent) 146 { 147 if (strcmp(installed_platform(), "ps3") != 0) 148 return; 149 150 if (device_find_child(parent, "ps3bus", -1) == NULL) 151 BUS_ADD_CHILD(parent, 0, "ps3bus", 0); 152 } 153 154 static int 155 ps3bus_probe(device_t dev) 156 { 157 /* Do not attach to any OF nodes that may be present */ 158 159 device_set_desc(dev, "Playstation 3 System Bus"); 160 161 return (BUS_PROBE_NOWILDCARD); 162 } 163 164 static void 165 ps3bus_resources_init(struct rman *rm, int bus_index, int dev_index, 166 struct ps3bus_devinfo *dinfo) 167 { 168 uint64_t irq_type, irq, outlet; 169 uint64_t reg_type, paddr, len; 170 uint64_t ppe, junk; 171 int i, result; 172 int thread; 173 174 resource_list_init(&dinfo->resources); 175 176 lv1_get_logical_ppe_id(&ppe); 177 thread = 32 - fls(mfctrl()); 178 179 /* Scan for interrupts */ 180 for (i = 0; i < 10; i++) { 181 result = lv1_get_repository_node_value(PS3_LPAR_ID_PME, 182 (lv1_repository_string("bus") >> 32) | bus_index, 183 lv1_repository_string("dev") | dev_index, 184 lv1_repository_string("intr") | i, 0, &irq_type, &irq); 185 186 if (result != 0) 187 break; 188 189 switch (irq_type) { 190 case SB_IRQ: 191 lv1_construct_event_receive_port(&outlet); 192 lv1_connect_irq_plug_ext(ppe, thread, outlet, outlet, 193 0); 194 lv1_connect_interrupt_event_receive_port(dinfo->bus, 195 dinfo->dev, outlet, irq); 196 break; 197 case OHCI_IRQ: 198 case EHCI_IRQ: 199 lv1_construct_io_irq_outlet(irq, &outlet); 200 lv1_connect_irq_plug_ext(ppe, thread, outlet, outlet, 201 0); 202 break; 203 default: 204 printf("Unknown IRQ type %ld for device %d.%d\n", 205 irq_type, dinfo->bus, dinfo->dev); 206 break; 207 } 208 209 resource_list_add(&dinfo->resources, SYS_RES_IRQ, i, 210 outlet, outlet, 1); 211 } 212 213 /* Scan for registers */ 214 for (i = 0; i < 10; i++) { 215 result = lv1_get_repository_node_value(PS3_LPAR_ID_PME, 216 (lv1_repository_string("bus") >> 32) | bus_index, 217 lv1_repository_string("dev") | dev_index, 218 lv1_repository_string("reg") | i, 219 lv1_repository_string("type"), ®_type, &junk); 220 221 if (result != 0) 222 break; 223 224 result = lv1_get_repository_node_value(PS3_LPAR_ID_PME, 225 (lv1_repository_string("bus") >> 32) | bus_index, 226 lv1_repository_string("dev") | dev_index, 227 lv1_repository_string("reg") | i, 228 lv1_repository_string("data"), &paddr, &len); 229 230 result = lv1_map_device_mmio_region(dinfo->bus, dinfo->dev, 231 paddr, len, 12 /* log_2(4 KB) */, &paddr); 232 233 if (result != 0) { 234 printf("Mapping registers failed for device " 235 "%d.%d (%ld.%ld): %d\n", dinfo->bus, dinfo->dev, 236 dinfo->bustype, dinfo->devtype, result); 237 continue; 238 } 239 240 rman_manage_region(rm, paddr, paddr + len - 1); 241 resource_list_add(&dinfo->resources, SYS_RES_MEMORY, i, 242 paddr, paddr + len, len); 243 } 244 } 245 246 static void 247 ps3bus_resources_init_by_type(struct rman *rm, int bus_index, int dev_index, 248 uint64_t irq_type, uint64_t reg_type, struct ps3bus_devinfo *dinfo) 249 { 250 uint64_t _irq_type, irq, outlet; 251 uint64_t _reg_type, paddr, len; 252 uint64_t ppe, junk; 253 int i, result; 254 int thread; 255 256 resource_list_init(&dinfo->resources); 257 258 lv1_get_logical_ppe_id(&ppe); 259 thread = 32 - fls(mfctrl()); 260 261 /* Scan for interrupts */ 262 for (i = 0; i < 10; i++) { 263 result = lv1_get_repository_node_value(PS3_LPAR_ID_PME, 264 (lv1_repository_string("bus") >> 32) | bus_index, 265 lv1_repository_string("dev") | dev_index, 266 lv1_repository_string("intr") | i, 0, &_irq_type, &irq); 267 268 if (result != 0) 269 break; 270 271 if (_irq_type != irq_type) 272 continue; 273 274 lv1_construct_io_irq_outlet(irq, &outlet); 275 lv1_connect_irq_plug_ext(ppe, thread, outlet, outlet, 276 0); 277 resource_list_add(&dinfo->resources, SYS_RES_IRQ, i, 278 outlet, outlet, 1); 279 } 280 281 /* Scan for registers */ 282 for (i = 0; i < 10; i++) { 283 result = lv1_get_repository_node_value(PS3_LPAR_ID_PME, 284 (lv1_repository_string("bus") >> 32) | bus_index, 285 lv1_repository_string("dev") | dev_index, 286 lv1_repository_string("reg") | i, 287 lv1_repository_string("type"), &_reg_type, &junk); 288 289 if (result != 0) 290 break; 291 292 if (_reg_type != reg_type) 293 continue; 294 295 result = lv1_get_repository_node_value(PS3_LPAR_ID_PME, 296 (lv1_repository_string("bus") >> 32) | bus_index, 297 lv1_repository_string("dev") | dev_index, 298 lv1_repository_string("reg") | i, 299 lv1_repository_string("data"), &paddr, &len); 300 301 result = lv1_map_device_mmio_region(dinfo->bus, dinfo->dev, 302 paddr, len, 12 /* log_2(4 KB) */, &paddr); 303 304 if (result != 0) { 305 printf("Mapping registers failed for device " 306 "%d.%d (%ld.%ld): %d\n", dinfo->bus, dinfo->dev, 307 dinfo->bustype, dinfo->devtype, result); 308 break; 309 } 310 311 rman_manage_region(rm, paddr, paddr + len - 1); 312 resource_list_add(&dinfo->resources, SYS_RES_MEMORY, i, 313 paddr, paddr + len, len); 314 } 315 } 316 317 static int 318 ps3bus_attach(device_t self) 319 { 320 struct ps3bus_softc *sc; 321 struct ps3bus_devinfo *dinfo; 322 int bus_index, dev_index, result; 323 uint64_t bustype, bus, devs; 324 uint64_t dev, devtype; 325 uint64_t junk; 326 device_t cdev; 327 328 sc = device_get_softc(self); 329 sc->sc_mem_rman.rm_type = RMAN_ARRAY; 330 sc->sc_mem_rman.rm_descr = "PS3Bus Memory Mapped I/O"; 331 rman_init(&sc->sc_mem_rman); 332 333 /* Get memory regions for DMA */ 334 mem_regions(&sc->regions, &sc->rcount, &sc->regions, &sc->rcount); 335 336 /* 337 * Probe all the PS3's buses. 338 */ 339 340 for (bus_index = 0; bus_index < 5; bus_index++) { 341 result = lv1_get_repository_node_value(PS3_LPAR_ID_PME, 342 (lv1_repository_string("bus") >> 32) | bus_index, 343 lv1_repository_string("type"), 0, 0, &bustype, &junk); 344 345 if (result != 0) 346 continue; 347 348 result = lv1_get_repository_node_value(PS3_LPAR_ID_PME, 349 (lv1_repository_string("bus") >> 32) | bus_index, 350 lv1_repository_string("id"), 0, 0, &bus, &junk); 351 352 if (result != 0) 353 continue; 354 355 result = lv1_get_repository_node_value(PS3_LPAR_ID_PME, 356 (lv1_repository_string("bus") >> 32) | bus_index, 357 lv1_repository_string("num_dev"), 0, 0, &devs, &junk); 358 359 for (dev_index = 0; dev_index < devs; dev_index++) { 360 result = lv1_get_repository_node_value(PS3_LPAR_ID_PME, 361 (lv1_repository_string("bus") >> 32) | bus_index, 362 lv1_repository_string("dev") | dev_index, 363 lv1_repository_string("type"), 0, &devtype, &junk); 364 365 if (result != 0) 366 continue; 367 368 result = lv1_get_repository_node_value(PS3_LPAR_ID_PME, 369 (lv1_repository_string("bus") >> 32) | bus_index, 370 lv1_repository_string("dev") | dev_index, 371 lv1_repository_string("id"), 0, &dev, &junk); 372 373 if (result != 0) 374 continue; 375 376 switch (devtype) { 377 case PS3_DEVTYPE_USB: 378 /* USB device has OHCI and EHCI USB host controllers */ 379 380 lv1_open_device(bus, dev, 0); 381 382 /* OHCI host controller */ 383 384 dinfo = malloc(sizeof(*dinfo), M_PS3BUS, 385 M_WAITOK | M_ZERO); 386 387 dinfo->bus = bus; 388 dinfo->dev = dev; 389 dinfo->bustype = bustype; 390 dinfo->devtype = devtype; 391 dinfo->busidx = bus_index; 392 dinfo->devidx = dev_index; 393 394 ps3bus_resources_init_by_type(&sc->sc_mem_rman, bus_index, 395 dev_index, OHCI_IRQ, OHCI_REG, dinfo); 396 397 cdev = device_add_child(self, "ohci", -1); 398 if (cdev == NULL) { 399 device_printf(self, 400 "device_add_child failed\n"); 401 free(dinfo, M_PS3BUS); 402 continue; 403 } 404 405 mtx_init(&dinfo->iommu_mtx, "iommu", NULL, MTX_DEF); 406 device_set_ivars(cdev, dinfo); 407 408 /* EHCI host controller */ 409 410 dinfo = malloc(sizeof(*dinfo), M_PS3BUS, 411 M_WAITOK | M_ZERO); 412 413 dinfo->bus = bus; 414 dinfo->dev = dev; 415 dinfo->bustype = bustype; 416 dinfo->devtype = devtype; 417 dinfo->busidx = bus_index; 418 dinfo->devidx = dev_index; 419 420 ps3bus_resources_init_by_type(&sc->sc_mem_rman, bus_index, 421 dev_index, EHCI_IRQ, EHCI_REG, dinfo); 422 423 cdev = device_add_child(self, "ehci", -1); 424 if (cdev == NULL) { 425 device_printf(self, 426 "device_add_child failed\n"); 427 free(dinfo, M_PS3BUS); 428 continue; 429 } 430 431 mtx_init(&dinfo->iommu_mtx, "iommu", NULL, MTX_DEF); 432 device_set_ivars(cdev, dinfo); 433 break; 434 default: 435 dinfo = malloc(sizeof(*dinfo), M_PS3BUS, 436 M_WAITOK | M_ZERO); 437 438 dinfo->bus = bus; 439 dinfo->dev = dev; 440 dinfo->bustype = bustype; 441 dinfo->devtype = devtype; 442 dinfo->busidx = bus_index; 443 dinfo->devidx = dev_index; 444 445 if (dinfo->bustype == PS3_BUSTYPE_SYSBUS || 446 dinfo->bustype == PS3_BUSTYPE_STORAGE) 447 lv1_open_device(bus, dev, 0); 448 449 ps3bus_resources_init(&sc->sc_mem_rman, bus_index, 450 dev_index, dinfo); 451 452 cdev = device_add_child(self, NULL, -1); 453 if (cdev == NULL) { 454 device_printf(self, 455 "device_add_child failed\n"); 456 free(dinfo, M_PS3BUS); 457 continue; 458 } 459 460 mtx_init(&dinfo->iommu_mtx, "iommu", NULL, MTX_DEF); 461 device_set_ivars(cdev, dinfo); 462 } 463 } 464 } 465 466 clock_register(self, 1000); 467 468 return (bus_generic_attach(self)); 469 } 470 471 static int 472 ps3bus_print_child(device_t dev, device_t child) 473 { 474 struct ps3bus_devinfo *dinfo = device_get_ivars(child); 475 int retval = 0; 476 477 retval += bus_print_child_header(dev, child); 478 retval += resource_list_print_type(&dinfo->resources, "mem", 479 SYS_RES_MEMORY, "%#lx"); 480 retval += resource_list_print_type(&dinfo->resources, "irq", 481 SYS_RES_IRQ, "%ld"); 482 483 retval += bus_print_child_footer(dev, child); 484 485 return (retval); 486 } 487 488 static int 489 ps3bus_read_ivar(device_t bus, device_t child, int which, uintptr_t *result) 490 { 491 struct ps3bus_devinfo *dinfo = device_get_ivars(child); 492 493 switch (which) { 494 case PS3BUS_IVAR_BUS: 495 *result = dinfo->bus; 496 break; 497 case PS3BUS_IVAR_DEVICE: 498 *result = dinfo->dev; 499 break; 500 case PS3BUS_IVAR_BUSTYPE: 501 *result = dinfo->bustype; 502 break; 503 case PS3BUS_IVAR_DEVTYPE: 504 *result = dinfo->devtype; 505 break; 506 case PS3BUS_IVAR_BUSIDX: 507 *result = dinfo->busidx; 508 break; 509 case PS3BUS_IVAR_DEVIDX: 510 *result = dinfo->devidx; 511 break; 512 default: 513 return (EINVAL); 514 } 515 516 return (0); 517 } 518 519 static struct resource * 520 ps3bus_alloc_resource(device_t bus, device_t child, int type, int *rid, 521 u_long start, u_long end, u_long count, u_int flags) 522 { 523 struct ps3bus_devinfo *dinfo; 524 struct ps3bus_softc *sc; 525 int needactivate; 526 struct resource *rv; 527 struct rman *rm; 528 u_long adjstart, adjend, adjcount; 529 struct resource_list_entry *rle; 530 531 sc = device_get_softc(bus); 532 dinfo = device_get_ivars(child); 533 needactivate = flags & RF_ACTIVE; 534 flags &= ~RF_ACTIVE; 535 536 switch (type) { 537 case SYS_RES_MEMORY: 538 rle = resource_list_find(&dinfo->resources, SYS_RES_MEMORY, 539 *rid); 540 if (rle == NULL) { 541 device_printf(bus, "no rle for %s memory %d\n", 542 device_get_nameunit(child), *rid); 543 return (NULL); 544 } 545 546 if (start < rle->start) 547 adjstart = rle->start; 548 else if (start > rle->end) 549 adjstart = rle->end; 550 else 551 adjstart = start; 552 553 if (end < rle->start) 554 adjend = rle->start; 555 else if (end > rle->end) 556 adjend = rle->end; 557 else 558 adjend = end; 559 560 adjcount = adjend - adjstart; 561 562 rm = &sc->sc_mem_rman; 563 break; 564 case SYS_RES_IRQ: 565 return (resource_list_alloc(&dinfo->resources, bus, child, 566 type, rid, start, end, count, flags)); 567 default: 568 device_printf(bus, "unknown resource request from %s\n", 569 device_get_nameunit(child)); 570 return (NULL); 571 } 572 573 rv = rman_reserve_resource(rm, adjstart, adjend, adjcount, flags, 574 child); 575 if (rv == NULL) { 576 device_printf(bus, 577 "failed to reserve resource %#lx - %#lx (%#lx)" 578 " for %s\n", adjstart, adjend, adjcount, 579 device_get_nameunit(child)); 580 return (NULL); 581 } 582 583 rman_set_rid(rv, *rid); 584 585 if (needactivate) { 586 if (bus_activate_resource(child, type, *rid, rv) != 0) { 587 device_printf(bus, 588 "failed to activate resource for %s\n", 589 device_get_nameunit(child)); 590 rman_release_resource(rv); 591 return (NULL); 592 } 593 } 594 595 return (rv); 596 } 597 598 static int 599 ps3bus_activate_resource(device_t bus, device_t child, int type, int rid, 600 struct resource *res) 601 { 602 void *p; 603 604 if (type == SYS_RES_IRQ) 605 return (bus_activate_resource(bus, type, rid, res)); 606 607 if (type == SYS_RES_MEMORY) { 608 vm_offset_t start; 609 610 start = (vm_offset_t) rman_get_start(res); 611 612 if (bootverbose) 613 printf("ps3 mapdev: start %zx, len %ld\n", start, 614 rman_get_size(res)); 615 616 p = pmap_mapdev(start, (vm_size_t) rman_get_size(res)); 617 if (p == NULL) 618 return (ENOMEM); 619 rman_set_virtual(res, p); 620 rman_set_bustag(res, &bs_be_tag); 621 rman_set_bushandle(res, (u_long)p); 622 } 623 624 return (rman_activate_resource(res)); 625 } 626 627 static bus_dma_tag_t 628 ps3bus_get_dma_tag(device_t dev, device_t child) 629 { 630 struct ps3bus_devinfo *dinfo = device_get_ivars(child); 631 struct ps3bus_softc *sc = device_get_softc(dev); 632 int i, err, flags, pagesize; 633 634 if (dinfo->bustype != PS3_BUSTYPE_SYSBUS && 635 dinfo->bustype != PS3_BUSTYPE_STORAGE) 636 return (bus_get_dma_tag(dev)); 637 638 mtx_lock(&dinfo->iommu_mtx); 639 if (dinfo->dma_tag != NULL) { 640 mtx_unlock(&dinfo->iommu_mtx); 641 return (dinfo->dma_tag); 642 } 643 644 flags = 0; /* 32-bit mode */ 645 if (dinfo->bustype == PS3_BUSTYPE_SYSBUS && 646 dinfo->devtype == PS3_DEVTYPE_USB) 647 flags = 2; /* 8-bit mode */ 648 649 pagesize = 24; /* log_2(16 MB) */ 650 if (dinfo->bustype == PS3_BUSTYPE_STORAGE) 651 pagesize = 12; /* 4 KB */ 652 653 for (i = 0; i < sc->rcount; i++) { 654 err = lv1_allocate_device_dma_region(dinfo->bus, dinfo->dev, 655 sc->regions[i].mr_size, pagesize, flags, 656 &dinfo->dma_base[i]); 657 if (err != 0) { 658 device_printf(child, 659 "could not allocate DMA region %d: %d\n", i, err); 660 goto fail; 661 } 662 663 err = lv1_map_device_dma_region(dinfo->bus, dinfo->dev, 664 sc->regions[i].mr_start, dinfo->dma_base[i], 665 sc->regions[i].mr_size, 666 0xf800000000000800UL /* Cell Handbook Figure 7.3.4.1 */); 667 if (err != 0) { 668 device_printf(child, 669 "could not map DMA region %d: %d\n", i, err); 670 goto fail; 671 } 672 } 673 674 err = bus_dma_tag_create(bus_get_dma_tag(dev), 675 1, 0, BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, 676 NULL, NULL, BUS_SPACE_MAXSIZE, 0, BUS_SPACE_MAXSIZE, 677 0, NULL, NULL, &dinfo->dma_tag); 678 679 /* 680 * Note: storage devices have IOMMU mappings set up by the hypervisor, 681 * but use physical, non-translated addresses. The above IOMMU 682 * initialization is necessary for the hypervisor to be able to set up 683 * the mappings, but actual DMA mappings should not use the IOMMU 684 * routines. 685 */ 686 if (dinfo->bustype != PS3_BUSTYPE_STORAGE) 687 bus_dma_tag_set_iommu(dinfo->dma_tag, dev, dinfo); 688 689 fail: 690 mtx_unlock(&dinfo->iommu_mtx); 691 692 if (err) 693 return (NULL); 694 695 return (dinfo->dma_tag); 696 } 697 698 static int 699 ps3_iommu_map(device_t dev, bus_dma_segment_t *segs, int *nsegs, 700 bus_addr_t min, bus_addr_t max, bus_size_t alignment, bus_size_t boundary, 701 void *cookie) 702 { 703 struct ps3bus_devinfo *dinfo = cookie; 704 struct ps3bus_softc *sc = device_get_softc(dev); 705 int i, j; 706 707 for (i = 0; i < *nsegs; i++) { 708 for (j = 0; j < sc->rcount; j++) { 709 if (segs[i].ds_addr >= sc->regions[j].mr_start && 710 segs[i].ds_addr < sc->regions[j].mr_start + 711 sc->regions[j].mr_size) 712 break; 713 } 714 KASSERT(j < sc->rcount, 715 ("Trying to map address %#lx not in physical memory", 716 segs[i].ds_addr)); 717 718 segs[i].ds_addr = dinfo->dma_base[j] + 719 (segs[i].ds_addr - sc->regions[j].mr_start); 720 } 721 722 return (0); 723 } 724 725 static int 726 ps3_iommu_unmap(device_t dev, bus_dma_segment_t *segs, int nsegs, void *cookie) 727 { 728 729 return (0); 730 } 731 732 #define Y2K 946684800 733 734 static int 735 ps3_gettime(device_t dev, struct timespec *ts) 736 { 737 uint64_t rtc, tb; 738 int result; 739 740 result = lv1_get_rtc(&rtc, &tb); 741 if (result) 742 return (result); 743 744 ts->tv_sec = rtc + Y2K; 745 ts->tv_nsec = 0; 746 return (0); 747 } 748 749 static int 750 ps3_settime(device_t dev, struct timespec *ts) 751 { 752 return (-1); 753 } 754 755