system-bus.c revision 6bb5cf1025414fe00b20f3bef56135849e4ed3b8
1/* 2 * PS3 system bus driver. 3 * 4 * Copyright (C) 2006 Sony Computer Entertainment Inc. 5 * Copyright 2006 Sony Corp. 6 * 7 * This program is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License as published by 9 * the Free Software Foundation; version 2 of the License. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, write to the Free Software 18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 19 */ 20 21#include <linux/kernel.h> 22#include <linux/init.h> 23#include <linux/module.h> 24#include <linux/dma-mapping.h> 25#include <linux/err.h> 26 27#include <asm/udbg.h> 28#include <asm/lv1call.h> 29#include <asm/firmware.h> 30 31#include "platform.h" 32 33static struct device ps3_system_bus = { 34 .bus_id = "ps3_system", 35}; 36 37/* FIXME: need device usage counters! */ 38struct { 39 struct mutex mutex; 40 int sb_11; /* usb 0 */ 41 int sb_12; /* usb 0 */ 42 int gpu; 43} static usage_hack; 44 45static int ps3_is_device(struct ps3_system_bus_device *dev, 46 unsigned int bus_id, unsigned int dev_id) 47{ 48 return dev->bus_id == bus_id && dev->dev_id == dev_id; 49} 50 51static int ps3_open_hv_device_sb(struct ps3_system_bus_device *dev) 52{ 53 int result; 54 55 BUG_ON(!dev->bus_id); 56 mutex_lock(&usage_hack.mutex); 57 58 if (ps3_is_device(dev, 1, 1)) { 59 usage_hack.sb_11++; 60 if (usage_hack.sb_11 > 1) { 61 result = 0; 62 goto done; 63 } 64 } 65 66 if (ps3_is_device(dev, 1, 2)) { 67 usage_hack.sb_12++; 68 if (usage_hack.sb_12 > 1) { 69 result = 0; 70 goto done; 71 } 72 } 73 74 result = lv1_open_device(dev->bus_id, dev->dev_id, 0); 75 76 if (result) { 77 pr_debug("%s:%d: lv1_open_device failed: %s\n", __func__, 78 __LINE__, ps3_result(result)); 79 result = -EPERM; 80 } 81 82done: 83 mutex_unlock(&usage_hack.mutex); 84 return result; 85} 86 87static int ps3_close_hv_device_sb(struct ps3_system_bus_device *dev) 88{ 89 int result; 90 91 BUG_ON(!dev->bus_id); 92 mutex_lock(&usage_hack.mutex); 93 94 if (ps3_is_device(dev, 1, 1)) { 95 usage_hack.sb_11--; 96 if (usage_hack.sb_11) { 97 result = 0; 98 goto done; 99 } 100 } 101 102 if (ps3_is_device(dev, 1, 2)) { 103 usage_hack.sb_12--; 104 if (usage_hack.sb_12) { 105 result = 0; 106 goto done; 107 } 108 } 109 110 result = lv1_close_device(dev->bus_id, dev->dev_id); 111 BUG_ON(result); 112 113done: 114 mutex_unlock(&usage_hack.mutex); 115 return result; 116} 117 118static int ps3_open_hv_device_gpu(struct ps3_system_bus_device *dev) 119{ 120 int result; 121 122 mutex_lock(&usage_hack.mutex); 123 124 usage_hack.gpu++; 125 if (usage_hack.gpu > 1) { 126 result = 0; 127 goto done; 128 } 129 130 result = lv1_gpu_open(0); 131 132 if (result) { 133 pr_debug("%s:%d: lv1_gpu_open failed: %s\n", __func__, 134 __LINE__, ps3_result(result)); 135 result = -EPERM; 136 } 137 138done: 139 mutex_unlock(&usage_hack.mutex); 140 return result; 141} 142 143static int ps3_close_hv_device_gpu(struct ps3_system_bus_device *dev) 144{ 145 int result; 146 147 mutex_lock(&usage_hack.mutex); 148 149 usage_hack.gpu--; 150 if (usage_hack.gpu) { 151 result = 0; 152 goto done; 153 } 154 155 result = lv1_gpu_close(); 156 BUG_ON(result); 157 158done: 159 mutex_unlock(&usage_hack.mutex); 160 return result; 161} 162 163int ps3_open_hv_device(struct ps3_system_bus_device *dev) 164{ 165 BUG_ON(!dev); 166 pr_debug("%s:%d: match_id: %u\n", __func__, __LINE__, dev->match_id); 167 168 switch (dev->match_id) { 169 case PS3_MATCH_ID_EHCI: 170 case PS3_MATCH_ID_OHCI: 171 case PS3_MATCH_ID_GELIC: 172 case PS3_MATCH_ID_STOR_DISK: 173 case PS3_MATCH_ID_STOR_ROM: 174 case PS3_MATCH_ID_STOR_FLASH: 175 return ps3_open_hv_device_sb(dev); 176 177 case PS3_MATCH_ID_SOUND: 178 case PS3_MATCH_ID_GRAPHICS: 179 return ps3_open_hv_device_gpu(dev); 180 181 case PS3_MATCH_ID_AV_SETTINGS: 182 case PS3_MATCH_ID_SYSTEM_MANAGER: 183 pr_debug("%s:%d: unsupported match_id: %u\n", __func__, 184 __LINE__, dev->match_id); 185 pr_debug("%s:%d: bus_id: %u\n", __func__, 186 __LINE__, dev->bus_id); 187 BUG(); 188 return -EINVAL; 189 190 default: 191 break; 192 } 193 194 pr_debug("%s:%d: unknown match_id: %u\n", __func__, __LINE__, 195 dev->match_id); 196 BUG(); 197 return -ENODEV; 198} 199EXPORT_SYMBOL_GPL(ps3_open_hv_device); 200 201int ps3_close_hv_device(struct ps3_system_bus_device *dev) 202{ 203 BUG_ON(!dev); 204 pr_debug("%s:%d: match_id: %u\n", __func__, __LINE__, dev->match_id); 205 206 switch (dev->match_id) { 207 case PS3_MATCH_ID_EHCI: 208 case PS3_MATCH_ID_OHCI: 209 case PS3_MATCH_ID_GELIC: 210 case PS3_MATCH_ID_STOR_DISK: 211 case PS3_MATCH_ID_STOR_ROM: 212 case PS3_MATCH_ID_STOR_FLASH: 213 return ps3_close_hv_device_sb(dev); 214 215 case PS3_MATCH_ID_SOUND: 216 case PS3_MATCH_ID_GRAPHICS: 217 return ps3_close_hv_device_gpu(dev); 218 219 case PS3_MATCH_ID_AV_SETTINGS: 220 case PS3_MATCH_ID_SYSTEM_MANAGER: 221 pr_debug("%s:%d: unsupported match_id: %u\n", __func__, 222 __LINE__, dev->match_id); 223 pr_debug("%s:%d: bus_id: %u\n", __func__, 224 __LINE__, dev->bus_id); 225 BUG(); 226 return -EINVAL; 227 228 default: 229 break; 230 } 231 232 pr_debug("%s:%d: unknown match_id: %u\n", __func__, __LINE__, 233 dev->match_id); 234 BUG(); 235 return -ENODEV; 236} 237EXPORT_SYMBOL_GPL(ps3_close_hv_device); 238 239#define dump_mmio_region(_a) _dump_mmio_region(_a, __func__, __LINE__) 240static void _dump_mmio_region(const struct ps3_mmio_region* r, 241 const char* func, int line) 242{ 243 pr_debug("%s:%d: dev %u:%u\n", func, line, r->dev->bus_id, 244 r->dev->dev_id); 245 pr_debug("%s:%d: bus_addr %lxh\n", func, line, r->bus_addr); 246 pr_debug("%s:%d: len %lxh\n", func, line, r->len); 247 pr_debug("%s:%d: lpar_addr %lxh\n", func, line, r->lpar_addr); 248} 249 250static int ps3_sb_mmio_region_create(struct ps3_mmio_region *r) 251{ 252 int result; 253 254 result = lv1_map_device_mmio_region(r->dev->bus_id, r->dev->dev_id, 255 r->bus_addr, r->len, r->page_size, &r->lpar_addr); 256 257 if (result) { 258 pr_debug("%s:%d: lv1_map_device_mmio_region failed: %s\n", 259 __func__, __LINE__, ps3_result(result)); 260 r->lpar_addr = 0; 261 } 262 263 dump_mmio_region(r); 264 return result; 265} 266 267static int ps3_ioc0_mmio_region_create(struct ps3_mmio_region *r) 268{ 269 /* device specific; do nothing currently */ 270 return 0; 271} 272 273int ps3_mmio_region_create(struct ps3_mmio_region *r) 274{ 275 return r->mmio_ops->create(r); 276} 277EXPORT_SYMBOL_GPL(ps3_mmio_region_create); 278 279static int ps3_sb_free_mmio_region(struct ps3_mmio_region *r) 280{ 281 int result; 282 283 dump_mmio_region(r); 284; 285 result = lv1_unmap_device_mmio_region(r->dev->bus_id, r->dev->dev_id, 286 r->lpar_addr); 287 288 if (result) 289 pr_debug("%s:%d: lv1_unmap_device_mmio_region failed: %s\n", 290 __func__, __LINE__, ps3_result(result)); 291 292 r->lpar_addr = 0; 293 return result; 294} 295 296static int ps3_ioc0_free_mmio_region(struct ps3_mmio_region *r) 297{ 298 /* device specific; do nothing currently */ 299 return 0; 300} 301 302 303int ps3_free_mmio_region(struct ps3_mmio_region *r) 304{ 305 return r->mmio_ops->free(r); 306} 307 308EXPORT_SYMBOL_GPL(ps3_free_mmio_region); 309 310static const struct ps3_mmio_region_ops ps3_mmio_sb_region_ops = { 311 .create = ps3_sb_mmio_region_create, 312 .free = ps3_sb_free_mmio_region 313}; 314 315static const struct ps3_mmio_region_ops ps3_mmio_ioc0_region_ops = { 316 .create = ps3_ioc0_mmio_region_create, 317 .free = ps3_ioc0_free_mmio_region 318}; 319 320int ps3_mmio_region_init(struct ps3_system_bus_device *dev, 321 struct ps3_mmio_region *r, unsigned long bus_addr, unsigned long len, 322 enum ps3_mmio_page_size page_size) 323{ 324 r->dev = dev; 325 r->bus_addr = bus_addr; 326 r->len = len; 327 r->page_size = page_size; 328 switch (dev->dev_type) { 329 case PS3_DEVICE_TYPE_SB: 330 r->mmio_ops = &ps3_mmio_sb_region_ops; 331 break; 332 case PS3_DEVICE_TYPE_IOC0: 333 r->mmio_ops = &ps3_mmio_ioc0_region_ops; 334 break; 335 default: 336 BUG(); 337 return -EINVAL; 338 } 339 return 0; 340} 341EXPORT_SYMBOL_GPL(ps3_mmio_region_init); 342 343static int ps3_system_bus_match(struct device *_dev, 344 struct device_driver *_drv) 345{ 346 int result; 347 struct ps3_system_bus_driver *drv = ps3_drv_to_system_bus_drv(_drv); 348 struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev); 349 350 result = dev->match_id == drv->match_id; 351 352 pr_info("%s:%d: dev=%u(%s), drv=%u(%s): %s\n", __func__, __LINE__, 353 dev->match_id, dev->core.bus_id, drv->match_id, drv->core.name, 354 (result ? "match" : "miss")); 355 return result; 356} 357 358static int ps3_system_bus_probe(struct device *_dev) 359{ 360 int result = 0; 361 struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev); 362 struct ps3_system_bus_driver *drv; 363 364 BUG_ON(!dev); 365 pr_info(" -> %s:%d: %s\n", __func__, __LINE__, _dev->bus_id); 366 367 drv = ps3_system_bus_dev_to_system_bus_drv(dev); 368 BUG_ON(!drv); 369 370 if (drv->probe) 371 result = drv->probe(dev); 372 else 373 pr_info("%s:%d: %s no probe method\n", __func__, __LINE__, 374 dev->core.bus_id); 375 376 pr_info(" <- %s:%d: %s\n", __func__, __LINE__, dev->core.bus_id); 377 return result; 378} 379 380static int ps3_system_bus_remove(struct device *_dev) 381{ 382 int result = 0; 383 struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev); 384 struct ps3_system_bus_driver *drv; 385 386 BUG_ON(!dev); 387 pr_info(" -> %s:%d: %s\n", __func__, __LINE__, _dev->bus_id); 388 389 drv = ps3_system_bus_dev_to_system_bus_drv(dev); 390 BUG_ON(!drv); 391 392 if (drv->remove) 393 result = drv->remove(dev); 394 else 395 dev_dbg(&dev->core, "%s:%d %s: no remove method\n", 396 __func__, __LINE__, drv->core.name); 397 398 pr_info(" <- %s:%d: %s\n", __func__, __LINE__, dev->core.bus_id); 399 return result; 400} 401 402static void ps3_system_bus_shutdown(struct device *_dev) 403{ 404 struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev); 405 struct ps3_system_bus_driver *drv; 406 407 BUG_ON(!dev); 408 409 dev_dbg(&dev->core, " -> %s:%d: match_id %d\n", __func__, __LINE__, 410 dev->match_id); 411 412 if (!dev->core.driver) { 413 dev_dbg(&dev->core, "%s:%d: no driver bound\n", __func__, 414 __LINE__); 415 return; 416 } 417 418 drv = ps3_system_bus_dev_to_system_bus_drv(dev); 419 420 BUG_ON(!drv); 421 422 dev_dbg(&dev->core, "%s:%d: %s -> %s\n", __func__, __LINE__, 423 dev->core.bus_id, drv->core.name); 424 425 if (drv->shutdown) 426 drv->shutdown(dev); 427 else if (drv->remove) { 428 dev_dbg(&dev->core, "%s:%d %s: no shutdown, calling remove\n", 429 __func__, __LINE__, drv->core.name); 430 drv->remove(dev); 431 } else { 432 dev_dbg(&dev->core, "%s:%d %s: no shutdown method\n", 433 __func__, __LINE__, drv->core.name); 434 BUG(); 435 } 436 437 dev_dbg(&dev->core, " <- %s:%d\n", __func__, __LINE__); 438} 439 440struct bus_type ps3_system_bus_type = { 441 .name = "ps3_system_bus", 442 .match = ps3_system_bus_match, 443 .probe = ps3_system_bus_probe, 444 .remove = ps3_system_bus_remove, 445 .shutdown = ps3_system_bus_shutdown, 446}; 447 448static int __init ps3_system_bus_init(void) 449{ 450 int result; 451 452 if (!firmware_has_feature(FW_FEATURE_PS3_LV1)) 453 return -ENODEV; 454 455 pr_debug(" -> %s:%d\n", __func__, __LINE__); 456 457 mutex_init(&usage_hack.mutex); 458 459 result = device_register(&ps3_system_bus); 460 BUG_ON(result); 461 462 result = bus_register(&ps3_system_bus_type); 463 BUG_ON(result); 464 465 pr_debug(" <- %s:%d\n", __func__, __LINE__); 466 return result; 467} 468 469core_initcall(ps3_system_bus_init); 470 471/* Allocates a contiguous real buffer and creates mappings over it. 472 * Returns the virtual address of the buffer and sets dma_handle 473 * to the dma address (mapping) of the first page. 474 */ 475static void * ps3_alloc_coherent(struct device *_dev, size_t size, 476 dma_addr_t *dma_handle, gfp_t flag) 477{ 478 int result; 479 struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev); 480 unsigned long virt_addr; 481 482 flag &= ~(__GFP_DMA | __GFP_HIGHMEM); 483 flag |= __GFP_ZERO; 484 485 virt_addr = __get_free_pages(flag, get_order(size)); 486 487 if (!virt_addr) { 488 pr_debug("%s:%d: get_free_pages failed\n", __func__, __LINE__); 489 goto clean_none; 490 } 491 492 result = ps3_dma_map(dev->d_region, virt_addr, size, dma_handle, 493 IOPTE_PP_W | IOPTE_PP_R | IOPTE_SO_RW | IOPTE_M); 494 495 if (result) { 496 pr_debug("%s:%d: ps3_dma_map failed (%d)\n", 497 __func__, __LINE__, result); 498 BUG_ON("check region type"); 499 goto clean_alloc; 500 } 501 502 return (void*)virt_addr; 503 504clean_alloc: 505 free_pages(virt_addr, get_order(size)); 506clean_none: 507 dma_handle = NULL; 508 return NULL; 509} 510 511static void ps3_free_coherent(struct device *_dev, size_t size, void *vaddr, 512 dma_addr_t dma_handle) 513{ 514 struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev); 515 516 ps3_dma_unmap(dev->d_region, dma_handle, size); 517 free_pages((unsigned long)vaddr, get_order(size)); 518} 519 520/* Creates TCEs for a user provided buffer. The user buffer must be 521 * contiguous real kernel storage (not vmalloc). The address of the buffer 522 * passed here is the kernel (virtual) address of the buffer. The buffer 523 * need not be page aligned, the dma_addr_t returned will point to the same 524 * byte within the page as vaddr. 525 */ 526 527static dma_addr_t ps3_sb_map_single(struct device *_dev, void *ptr, size_t size, 528 enum dma_data_direction direction) 529{ 530 struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev); 531 int result; 532 unsigned long bus_addr; 533 534 result = ps3_dma_map(dev->d_region, (unsigned long)ptr, size, 535 &bus_addr, 536 IOPTE_PP_R | IOPTE_PP_W | IOPTE_SO_RW | IOPTE_M); 537 538 if (result) { 539 pr_debug("%s:%d: ps3_dma_map failed (%d)\n", 540 __func__, __LINE__, result); 541 } 542 543 return bus_addr; 544} 545 546static dma_addr_t ps3_ioc0_map_single(struct device *_dev, void *ptr, 547 size_t size, 548 enum dma_data_direction direction) 549{ 550 struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev); 551 int result; 552 unsigned long bus_addr; 553 u64 iopte_flag; 554 555 iopte_flag = IOPTE_M; 556 switch (direction) { 557 case DMA_BIDIRECTIONAL: 558 iopte_flag |= IOPTE_PP_R | IOPTE_PP_W | IOPTE_SO_RW; 559 break; 560 case DMA_TO_DEVICE: 561 iopte_flag |= IOPTE_PP_R | IOPTE_SO_R; 562 break; 563 case DMA_FROM_DEVICE: 564 iopte_flag |= IOPTE_PP_W | IOPTE_SO_RW; 565 break; 566 default: 567 /* not happned */ 568 BUG(); 569 }; 570 result = ps3_dma_map(dev->d_region, (unsigned long)ptr, size, 571 &bus_addr, iopte_flag); 572 573 if (result) { 574 pr_debug("%s:%d: ps3_dma_map failed (%d)\n", 575 __func__, __LINE__, result); 576 } 577 return bus_addr; 578} 579 580static void ps3_unmap_single(struct device *_dev, dma_addr_t dma_addr, 581 size_t size, enum dma_data_direction direction) 582{ 583 struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev); 584 int result; 585 586 result = ps3_dma_unmap(dev->d_region, dma_addr, size); 587 588 if (result) { 589 pr_debug("%s:%d: ps3_dma_unmap failed (%d)\n", 590 __func__, __LINE__, result); 591 } 592} 593 594static int ps3_sb_map_sg(struct device *_dev, struct scatterlist *sg, int nents, 595 enum dma_data_direction direction) 596{ 597#if defined(CONFIG_PS3_DYNAMIC_DMA) 598 BUG_ON("do"); 599 return -EPERM; 600#else 601 struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev); 602 int i; 603 604 for (i = 0; i < nents; i++, sg++) { 605 int result = ps3_dma_map(dev->d_region, 606 page_to_phys(sg->page) + sg->offset, sg->length, 607 &sg->dma_address, 0); 608 609 if (result) { 610 pr_debug("%s:%d: ps3_dma_map failed (%d)\n", 611 __func__, __LINE__, result); 612 return -EINVAL; 613 } 614 615 sg->dma_length = sg->length; 616 } 617 618 return nents; 619#endif 620} 621 622static int ps3_ioc0_map_sg(struct device *_dev, struct scatterlist *sg, 623 int nents, 624 enum dma_data_direction direction) 625{ 626 BUG(); 627 return 0; 628} 629 630static void ps3_sb_unmap_sg(struct device *_dev, struct scatterlist *sg, 631 int nents, enum dma_data_direction direction) 632{ 633#if defined(CONFIG_PS3_DYNAMIC_DMA) 634 BUG_ON("do"); 635#endif 636} 637 638static void ps3_ioc0_unmap_sg(struct device *_dev, struct scatterlist *sg, 639 int nents, enum dma_data_direction direction) 640{ 641 BUG(); 642} 643 644static int ps3_dma_supported(struct device *_dev, u64 mask) 645{ 646 return mask >= DMA_32BIT_MASK; 647} 648 649static struct dma_mapping_ops ps3_sb_dma_ops = { 650 .alloc_coherent = ps3_alloc_coherent, 651 .free_coherent = ps3_free_coherent, 652 .map_single = ps3_sb_map_single, 653 .unmap_single = ps3_unmap_single, 654 .map_sg = ps3_sb_map_sg, 655 .unmap_sg = ps3_sb_unmap_sg, 656 .dma_supported = ps3_dma_supported 657}; 658 659static struct dma_mapping_ops ps3_ioc0_dma_ops = { 660 .alloc_coherent = ps3_alloc_coherent, 661 .free_coherent = ps3_free_coherent, 662 .map_single = ps3_ioc0_map_single, 663 .unmap_single = ps3_unmap_single, 664 .map_sg = ps3_ioc0_map_sg, 665 .unmap_sg = ps3_ioc0_unmap_sg, 666 .dma_supported = ps3_dma_supported 667}; 668 669/** 670 * ps3_system_bus_release_device - remove a device from the system bus 671 */ 672 673static void ps3_system_bus_release_device(struct device *_dev) 674{ 675 struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev); 676 kfree(dev); 677} 678 679/** 680 * ps3_system_bus_device_register - add a device to the system bus 681 * 682 * ps3_system_bus_device_register() expects the dev object to be allocated 683 * dynamically by the caller. The system bus takes ownership of the dev 684 * object and frees the object in ps3_system_bus_release_device(). 685 */ 686 687int ps3_system_bus_device_register(struct ps3_system_bus_device *dev) 688{ 689 int result; 690 static unsigned int dev_ioc0_count; 691 static unsigned int dev_sb_count; 692 static unsigned int dev_vuart_count; 693 694 if (!dev->core.parent) 695 dev->core.parent = &ps3_system_bus; 696 dev->core.bus = &ps3_system_bus_type; 697 dev->core.release = ps3_system_bus_release_device; 698 699 switch (dev->dev_type) { 700 case PS3_DEVICE_TYPE_IOC0: 701 dev->core.archdata.dma_ops = &ps3_ioc0_dma_ops; 702 snprintf(dev->core.bus_id, sizeof(dev->core.bus_id), 703 "ioc0_%02x", ++dev_ioc0_count); 704 break; 705 case PS3_DEVICE_TYPE_SB: 706 dev->core.archdata.dma_ops = &ps3_sb_dma_ops; 707 snprintf(dev->core.bus_id, sizeof(dev->core.bus_id), 708 "sb_%02x", ++dev_sb_count); 709 710 break; 711 case PS3_DEVICE_TYPE_VUART: 712 snprintf(dev->core.bus_id, sizeof(dev->core.bus_id), 713 "vuart_%02x", ++dev_vuart_count); 714 break; 715 default: 716 BUG(); 717 }; 718 719 dev->core.archdata.of_node = NULL; 720 dev->core.archdata.numa_node = 0; 721 722 pr_debug("%s:%d add %s\n", __func__, __LINE__, dev->core.bus_id); 723 724 result = device_register(&dev->core); 725 return result; 726} 727 728EXPORT_SYMBOL_GPL(ps3_system_bus_device_register); 729 730int ps3_system_bus_driver_register(struct ps3_system_bus_driver *drv) 731{ 732 int result; 733 734 pr_debug(" -> %s:%d: %s\n", __func__, __LINE__, drv->core.name); 735 736 if (!firmware_has_feature(FW_FEATURE_PS3_LV1)) 737 return -ENODEV; 738 739 drv->core.bus = &ps3_system_bus_type; 740 741 result = driver_register(&drv->core); 742 pr_debug(" <- %s:%d: %s\n", __func__, __LINE__, drv->core.name); 743 return result; 744} 745 746EXPORT_SYMBOL_GPL(ps3_system_bus_driver_register); 747 748void ps3_system_bus_driver_unregister(struct ps3_system_bus_driver *drv) 749{ 750 pr_debug(" -> %s:%d: %s\n", __func__, __LINE__, drv->core.name); 751 driver_unregister(&drv->core); 752 pr_debug(" <- %s:%d: %s\n", __func__, __LINE__, drv->core.name); 753} 754 755EXPORT_SYMBOL_GPL(ps3_system_bus_driver_unregister); 756