1 /* 2 * Copyright 2008-2010, Axel Dörfler, axeld@pinc-software.de. 3 * Distributed under the terms of the MIT License. 4 */ 5 6 7 #include <AreaKeeper.h> 8 #include <intel_extreme.h> 9 10 #include <stdlib.h> 11 12 #include <AGP.h> 13 #include <KernelExport.h> 14 #include <PCI.h> 15 16 17 //#define TRACE_INTEL 18 #ifdef TRACE_INTEL 19 # define TRACE(x...) dprintf("\33[33magp-intel:\33[0m " x) 20 #else 21 # define TRACE(x...) ; 22 #endif 23 24 #ifndef __HAIKU__ 25 # define B_KERNEL_READ_AREA 0 26 # define B_KERNEL_WRITE_AREA 0 27 #endif 28 29 /* read and write to PCI config space */ 30 #define get_pci_config(info, offset, size) \ 31 (sPCI->read_pci_config((info).bus, (info).device, (info).function, \ 32 (offset), (size))) 33 #define set_pci_config(info, offset, size, value) \ 34 (sPCI->write_pci_config((info).bus, (info).device, (info).function, \ 35 (offset), (size), (value))) 36 #define write32(address, data) \ 37 (*((volatile uint32*)(address)) = (data)) 38 #define read32(address) \ 39 (*((volatile uint32*)(address))) 40 41 42 const struct supported_device { 43 uint32 bridge_id; 44 uint32 display_id; 45 uint32 type; 46 const char *name; 47 } kSupportedDevices[] = { 48 {0x3575, 0x3577, INTEL_TYPE_83x, "i830GM"}, 49 {0x2560, 0x2562, INTEL_TYPE_83x, "i845G"}, 50 {0x3580, 0x3582, INTEL_TYPE_85x, "i855G"}, 51 {0x358c, 0x358e, INTEL_TYPE_85x, "i855G"}, 52 {0x2570, 0x2572, INTEL_TYPE_85x, "i865G"}, 53 54 // {0x2792, INTEL_TYPE_91x, "i910"}, 55 // {0x258a, INTEL_TYPE_91x, "i915"}, 56 {0x2580, 0x2582, INTEL_TYPE_915, "i915G"}, 57 {0x2590, 0x2592, INTEL_TYPE_915M, "i915GM"}, 58 {0x2770, 0x2772, INTEL_TYPE_945, "i945G"}, 59 {0x27a0, 0x27a2, INTEL_TYPE_945M, "i945GM"}, 60 {0x27ac, 0x27ae, INTEL_TYPE_945M, "i945GME"}, 61 62 {0x2970, 0x2972, INTEL_TYPE_965, "i946GZ"}, 63 {0x2980, 0x2982, INTEL_TYPE_965, "G35"}, 64 {0x2990, 0x2992, INTEL_TYPE_965, "i965Q"}, 65 {0x29a0, 0x29a2, INTEL_TYPE_965, "i965G"}, 66 {0x2a00, 0x2a02, INTEL_TYPE_965, "i965GM"}, 67 {0x2a10, 0x2a12, INTEL_TYPE_965, "i965GME"}, 68 69 {0x29b0, 0x29b2, INTEL_TYPE_G33, "G33"}, 70 {0x29c0, 0x29c2, INTEL_TYPE_G33, "Q35"}, 71 {0x29d0, 0x29d2, INTEL_TYPE_G33, "Q33"}, 72 73 {0x2a40, 0x2a42, INTEL_TYPE_GM45, "GM45"}, 74 {0x2e00, 0x2e02, INTEL_TYPE_G45, "IGD"}, 75 {0x2e10, 0x2e12, INTEL_TYPE_G45, "Q45"}, 76 {0x2e20, 0x2e22, INTEL_TYPE_G45, "G45"}, 77 {0x2e30, 0x2e32, INTEL_TYPE_G45, "G41"}, 78 {0x2e40, 0x2e42, INTEL_TYPE_G45, "B43"}, 79 {0x2e90, 0x2e92, INTEL_TYPE_G45, "B43"}, 80 81 {0xa000, 0xa001, INTEL_TYPE_IGDG, "Atom_Dx10"}, 82 {0xa010, 0xa011, INTEL_TYPE_IGDGM, "Atom_N4x0"}, 83 84 {0x0040, 0x0042, INTEL_TYPE_ILKG, "IronLake Desktop"}, 85 {0x0044, 0x0046, INTEL_TYPE_ILKGM, "IronLake Mobile"}, 86 {0x0062, 0x0046, INTEL_TYPE_ILKGM, "IronLake Mobile"}, 87 {0x006a, 0x0046, INTEL_TYPE_ILKGM, "IronLake Mobile"}, 88 89 {0x0100, 0x0102, INTEL_TYPE_SNBG, "SandyBridge Desktop GT1"}, 90 {0x0100, 0x0112, INTEL_TYPE_SNBG, "SandyBridge Desktop GT2"}, 91 {0x0100, 0x0122, INTEL_TYPE_SNBG, "SandyBridge Desktop GT2+"}, 92 {0x0104, 0x0106, INTEL_TYPE_SNBGM, "SandyBridge Mobile GT1"}, 93 {0x0104, 0x0116, INTEL_TYPE_SNBGM, "SandyBridge Mobile GT2"}, 94 {0x0104, 0x0126, INTEL_TYPE_SNBGM, "SandyBridge Mobile GT2+"}, 95 {0x0108, 0x010a, INTEL_TYPE_SNBGS, "SandyBridge Server"}, 96 97 {0x0150, 0x0152, INTEL_TYPE_IVBG, "IvyBridge Desktop GT1"}, 98 {0x0150, 0x0162, INTEL_TYPE_IVBG, "IvyBridge Desktop GT2"}, 99 {0x0154, 0x0156, INTEL_TYPE_IVBGM, "IvyBridge Mobile GT1"}, 100 {0x0154, 0x0166, INTEL_TYPE_IVBGM, "IvyBridge Mobile GT2"}, 101 {0x0158, 0x015a, INTEL_TYPE_IVBGS, "IvyBridge Server GT1"}, 102 {0x0158, 0x016a, INTEL_TYPE_IVBGS, "IvyBridge Server GT2"} 103 }; 104 105 struct intel_info { 106 pci_info bridge; 107 pci_info display; 108 uint32 type; 109 110 uint32 *gtt_base; 111 addr_t gtt_physical_base; 112 area_id gtt_area; 113 size_t gtt_entries; 114 size_t gtt_stolen_entries; 115 116 vuint32 *registers; 117 area_id registers_area; 118 119 addr_t aperture_base; 120 addr_t aperture_physical_base; 121 area_id aperture_area; 122 size_t aperture_size; 123 size_t aperture_stolen_size; 124 125 phys_addr_t scratch_page; 126 area_id scratch_area; 127 }; 128 129 static intel_info sInfo; 130 static pci_module_info* sPCI; 131 132 133 static bool 134 has_display_device(pci_info &info, uint32 deviceID) 135 { 136 for (uint32 index = 0; sPCI->get_nth_pci_info(index, &info) == B_OK; 137 index++) { 138 if (info.vendor_id != VENDOR_ID_INTEL 139 || info.device_id != deviceID 140 || info.class_base != PCI_display) 141 continue; 142 143 return true; 144 } 145 146 return false; 147 } 148 149 150 static void 151 determine_memory_sizes(intel_info &info, size_t >tSize, size_t &stolenSize) 152 { 153 // read stolen memory from the PCI configuration of the PCI bridge 154 uint8 controlRegister = INTEL_GRAPHICS_MEMORY_CONTROL; 155 if ((info.type & INTEL_TYPE_GROUP_MASK) == INTEL_TYPE_SNB) 156 controlRegister = SNB_GRAPHICS_MEMORY_CONTROL; 157 158 uint16 memoryConfig = get_pci_config(info.bridge, controlRegister, 2); 159 size_t memorySize = 1 << 20; // 1 MB 160 gttSize = 0; 161 stolenSize = 0; 162 163 if (info.type == INTEL_TYPE_965) { 164 switch (memoryConfig & i965_GTT_MASK) { 165 case i965_GTT_128K: 166 gttSize = 128 << 10; 167 break; 168 case i965_GTT_256K: 169 gttSize = 256 << 10; 170 break; 171 case i965_GTT_512K: 172 gttSize = 512 << 10; 173 break; 174 } 175 } else if (info.type == INTEL_TYPE_G33 176 || (info.type & INTEL_TYPE_GROUP_MASK) == INTEL_TYPE_IGD) { 177 switch (memoryConfig & G33_GTT_MASK) { 178 case G33_GTT_1M: 179 gttSize = 1 << 20; 180 break; 181 case G33_GTT_2M: 182 gttSize = 2 << 20; 183 break; 184 } 185 } else if ((info.type & INTEL_TYPE_GROUP_MASK) == INTEL_TYPE_G4x 186 || (info.type & INTEL_TYPE_GROUP_MASK) == INTEL_TYPE_ILK) { 187 switch (memoryConfig & G4X_GTT_MASK) { 188 case G4X_GTT_NONE: 189 gttSize = 0; 190 break; 191 case G4X_GTT_1M_NO_IVT: 192 gttSize = 1 << 20; 193 break; 194 case G4X_GTT_2M_NO_IVT: 195 case G4X_GTT_2M_IVT: 196 gttSize = 2 << 20; 197 break; 198 case G4X_GTT_3M_IVT: 199 gttSize = 3 << 20; 200 break; 201 case G4X_GTT_4M_IVT: 202 gttSize = 4 << 20; 203 break; 204 } 205 } else if ((info.type & INTEL_TYPE_GROUP_MASK) == INTEL_TYPE_SNB) { 206 switch (memoryConfig & SNB_GTT_SIZE_MASK) { 207 case SNB_GTT_SIZE_NONE: 208 gttSize = 0; 209 break; 210 case SNB_GTT_SIZE_1MB: 211 gttSize = 1 << 20; 212 break; 213 case SNB_GTT_SIZE_2MB: 214 gttSize = 2 << 20; 215 break; 216 } 217 } else { 218 // older models have the GTT as large as their frame buffer mapping 219 // TODO: check if the i9xx version works with the i8xx chips as well 220 size_t frameBufferSize = 0; 221 if ((info.type & INTEL_TYPE_8xx) != 0) { 222 if (info.type == INTEL_TYPE_83x 223 && (memoryConfig & MEMORY_MASK) == i830_FRAME_BUFFER_64M) 224 frameBufferSize = 64 << 20; 225 else 226 frameBufferSize = 128 << 20; 227 } else if ((info.type & INTEL_TYPE_9xx) != 0) 228 frameBufferSize = info.display.u.h0.base_register_sizes[2]; 229 230 TRACE("frame buffer size %lu MB\n", frameBufferSize >> 20); 231 gttSize = frameBufferSize / 1024; 232 } 233 234 // TODO: test with different models! 235 236 if (info.type == INTEL_TYPE_83x) { 237 // Older chips 238 switch (memoryConfig & STOLEN_MEMORY_MASK) { 239 case i830_LOCAL_MEMORY_ONLY: 240 // TODO: determine its size! 241 dprintf("intel_gart: getting local memory size not " 242 "implemented.\n"); 243 break; 244 case i830_STOLEN_512K: 245 memorySize >>= 1; 246 break; 247 case i830_STOLEN_1M: 248 // default case 249 break; 250 case i830_STOLEN_8M: 251 memorySize *= 8; 252 break; 253 } 254 } else if ((info.type & INTEL_TYPE_GROUP_MASK) == INTEL_TYPE_SNB) { 255 switch (memoryConfig & SNB_STOLEN_MEMORY_MASK) { 256 case SNB_STOLEN_MEMORY_32MB: 257 memorySize *= 32; 258 break; 259 case SNB_STOLEN_MEMORY_64MB: 260 memorySize *= 64; 261 break; 262 case SNB_STOLEN_MEMORY_96MB: 263 memorySize *= 96; 264 break; 265 case SNB_STOLEN_MEMORY_128MB: 266 memorySize *= 128; 267 break; 268 case SNB_STOLEN_MEMORY_160MB: 269 memorySize *= 160; 270 break; 271 case SNB_STOLEN_MEMORY_192MB: 272 memorySize *= 192; 273 break; 274 case SNB_STOLEN_MEMORY_224MB: 275 memorySize *= 224; 276 break; 277 case SNB_STOLEN_MEMORY_256MB: 278 memorySize *= 256; 279 break; 280 case SNB_STOLEN_MEMORY_288MB: 281 memorySize *= 288; 282 break; 283 case SNB_STOLEN_MEMORY_320MB: 284 memorySize *= 320; 285 break; 286 case SNB_STOLEN_MEMORY_352MB: 287 memorySize *= 352; 288 break; 289 case SNB_STOLEN_MEMORY_384MB: 290 memorySize *= 384; 291 break; 292 case SNB_STOLEN_MEMORY_416MB: 293 memorySize *= 416; 294 break; 295 case SNB_STOLEN_MEMORY_448MB: 296 memorySize *= 448; 297 break; 298 case SNB_STOLEN_MEMORY_480MB: 299 memorySize *= 480; 300 break; 301 case SNB_STOLEN_MEMORY_512MB: 302 memorySize *= 512; 303 break; 304 } 305 } else if (info.type == INTEL_TYPE_85x 306 || (info.type & INTEL_TYPE_9xx) == INTEL_TYPE_9xx) { 307 switch (memoryConfig & STOLEN_MEMORY_MASK) { 308 case i855_STOLEN_MEMORY_4M: 309 memorySize *= 4; 310 break; 311 case i855_STOLEN_MEMORY_8M: 312 memorySize *= 8; 313 break; 314 case i855_STOLEN_MEMORY_16M: 315 memorySize *= 16; 316 break; 317 case i855_STOLEN_MEMORY_32M: 318 memorySize *= 32; 319 break; 320 case i855_STOLEN_MEMORY_48M: 321 memorySize *= 48; 322 break; 323 case i855_STOLEN_MEMORY_64M: 324 memorySize *= 64; 325 break; 326 case i855_STOLEN_MEMORY_128M: 327 memorySize *= 128; 328 break; 329 case i855_STOLEN_MEMORY_256M: 330 memorySize *= 256; 331 break; 332 case G4X_STOLEN_MEMORY_96MB: 333 memorySize *= 96; 334 break; 335 case G4X_STOLEN_MEMORY_160MB: 336 memorySize *= 160; 337 break; 338 case G4X_STOLEN_MEMORY_224MB: 339 memorySize *= 224; 340 break; 341 case G4X_STOLEN_MEMORY_352MB: 342 memorySize *= 352; 343 break; 344 } 345 } else { 346 // TODO: error out! 347 memorySize = 4096; 348 } 349 350 stolenSize = memorySize - 4096; 351 } 352 353 354 static void 355 set_gtt_entry(intel_info &info, uint32 offset, phys_addr_t physicalAddress) 356 { 357 // TODO: this is not 64-bit safe! 358 write32(info.gtt_base + (offset >> GTT_PAGE_SHIFT), 359 (uint32)physicalAddress | GTT_ENTRY_VALID); 360 } 361 362 363 static void 364 intel_unmap(intel_info &info) 365 { 366 delete_area(info.registers_area); 367 delete_area(info.gtt_area); 368 delete_area(info.scratch_area); 369 delete_area(info.aperture_area); 370 info.aperture_size = 0; 371 } 372 373 374 static status_t 375 intel_map(intel_info &info) 376 { 377 int fbIndex = 0; 378 int mmioIndex = 1; 379 if ((info.type & INTEL_TYPE_FAMILY_MASK) == INTEL_TYPE_9xx) { 380 // for some reason Intel saw the need to change the order of the 381 // mappings with the introduction of the i9xx family 382 mmioIndex = 0; 383 fbIndex = 2; 384 } 385 386 AreaKeeper mmioMapper; 387 info.registers_area = mmioMapper.Map("intel GMCH mmio", 388 (void*)info.display.u.h0.base_registers[mmioIndex], 389 info.display.u.h0.base_register_sizes[mmioIndex], B_ANY_KERNEL_ADDRESS, 390 B_KERNEL_READ_AREA | B_KERNEL_WRITE_AREA, (void**)&info.registers); 391 if (mmioMapper.InitCheck() < B_OK) { 392 dprintf("agp_intel: could not map memory I/O!\n"); 393 return info.registers_area; 394 } 395 396 // make sure bus master, memory-mapped I/O, and frame buffer is enabled 397 set_pci_config(info.display, PCI_command, 2, 398 get_pci_config(info.display, PCI_command, 2) 399 | PCI_command_io | PCI_command_memory | PCI_command_master); 400 401 void* scratchAddress; 402 AreaKeeper scratchCreator; 403 info.scratch_area = scratchCreator.Create("intel GMCH scratch", 404 &scratchAddress, B_ANY_KERNEL_ADDRESS, B_PAGE_SIZE, B_FULL_LOCK, 405 B_KERNEL_READ_AREA | B_KERNEL_WRITE_AREA); 406 if (scratchCreator.InitCheck() < B_OK) { 407 dprintf("agp_intel: could not create scratch page!\n"); 408 return info.scratch_area; 409 } 410 411 physical_entry entry; 412 if (get_memory_map(scratchAddress, B_PAGE_SIZE, &entry, 1) != B_OK) 413 return B_ERROR; 414 415 if ((info.type & INTEL_TYPE_FAMILY_MASK) == INTEL_TYPE_9xx) { 416 if ((info.type & INTEL_TYPE_GROUP_MASK) == INTEL_TYPE_G4x 417 || (info.type & INTEL_TYPE_GROUP_MASK) == INTEL_TYPE_ILK 418 || (info.type & INTEL_TYPE_GROUP_MASK) == INTEL_TYPE_SNB) { 419 info.gtt_physical_base = info.display.u.h0.base_registers[mmioIndex] 420 + (2UL << 20); 421 } else 422 info.gtt_physical_base 423 = get_pci_config(info.display, i915_GTT_BASE, 4); 424 } else { 425 info.gtt_physical_base = read32(info.registers 426 + INTEL_PAGE_TABLE_CONTROL) & ~PAGE_TABLE_ENABLED; 427 if (info.gtt_physical_base == 0) { 428 // TODO: not sure how this is supposed to work under Linux/FreeBSD, 429 // but on my i865, this code is needed for Haiku. 430 dprintf("intel_gart: Use GTT address fallback.\n"); 431 info.gtt_physical_base = info.display.u.h0.base_registers[mmioIndex] 432 + i830_GTT_BASE; 433 } 434 } 435 436 size_t gttSize, stolenSize; 437 determine_memory_sizes(info, gttSize, stolenSize); 438 439 info.gtt_entries = gttSize / 4096; 440 info.gtt_stolen_entries = stolenSize / 4096; 441 442 TRACE("GTT base %lx, size %lu, entries %lu, stolen %lu\n", 443 info.gtt_physical_base, gttSize, info.gtt_entries, stolenSize); 444 445 AreaKeeper gttMapper; 446 info.gtt_area = gttMapper.Map("intel GMCH gtt", 447 (void*)info.gtt_physical_base, gttSize, B_ANY_KERNEL_ADDRESS, 448 B_KERNEL_READ_AREA | B_KERNEL_WRITE_AREA, (void**)&info.gtt_base); 449 if (gttMapper.InitCheck() < B_OK) { 450 dprintf("intel_gart: could not map GTT!\n"); 451 return info.gtt_area; 452 } 453 454 info.aperture_physical_base = info.display.u.h0.base_registers[fbIndex]; 455 info.aperture_stolen_size = stolenSize; 456 if (info.aperture_size == 0) 457 info.aperture_size = info.display.u.h0.base_register_sizes[fbIndex]; 458 459 dprintf("intel_gart: detected %ld MB of stolen memory, aperture " 460 "size %ld MB, GTT size %ld KB\n", (stolenSize + (1023 << 10)) >> 20, 461 info.aperture_size >> 20, gttSize >> 10); 462 463 dprintf("intel_gart: GTT base = 0x%lx\n", info.gtt_physical_base); 464 dprintf("intel_gart: MMIO base = 0x%lx\n", 465 info.display.u.h0.base_registers[mmioIndex]); 466 dprintf("intel_gart: GMR base = 0x%lx\n", info.aperture_physical_base); 467 468 AreaKeeper apertureMapper; 469 info.aperture_area = apertureMapper.Map("intel graphics aperture", 470 (void*)info.aperture_physical_base, info.aperture_size, 471 B_ANY_KERNEL_BLOCK_ADDRESS | B_MTR_WC, 472 B_READ_AREA | B_WRITE_AREA, (void**)&info.aperture_base); 473 if (apertureMapper.InitCheck() < B_OK) { 474 // try again without write combining 475 dprintf(DEVICE_NAME ": enabling write combined mode failed.\n"); 476 477 info.aperture_area = apertureMapper.Map("intel graphics aperture", 478 (void*)info.aperture_physical_base, info.aperture_size, 479 B_ANY_KERNEL_BLOCK_ADDRESS, B_READ_AREA | B_WRITE_AREA, 480 (void**)&info.aperture_base); 481 } 482 if (apertureMapper.InitCheck() < B_OK) { 483 dprintf(DEVICE_NAME ": could not map graphics aperture!\n"); 484 return info.aperture_area; 485 } 486 487 info.scratch_page = entry.address; 488 489 gttMapper.Detach(); 490 mmioMapper.Detach(); 491 scratchCreator.Detach(); 492 apertureMapper.Detach(); 493 494 return B_OK; 495 } 496 497 498 // #pragma mark - module interface 499 500 501 status_t 502 intel_create_aperture(uint8 bus, uint8 device, uint8 function, size_t size, 503 void** _aperture) 504 { 505 // TODO: we currently only support a single AGP bridge! 506 if ((bus != sInfo.bridge.bus || device != sInfo.bridge.device 507 || function != sInfo.bridge.function) 508 && (bus != sInfo.display.bus || device != sInfo.display.device 509 || function != sInfo.display.function)) 510 return B_BAD_VALUE; 511 512 sInfo.aperture_size = size; 513 514 if (intel_map(sInfo) < B_OK) 515 return B_ERROR; 516 517 uint16 gmchControl = get_pci_config(sInfo.bridge, 518 INTEL_GRAPHICS_MEMORY_CONTROL, 2) | MEMORY_CONTROL_ENABLED; 519 set_pci_config(sInfo.bridge, INTEL_GRAPHICS_MEMORY_CONTROL, 2, gmchControl); 520 521 write32(sInfo.registers + INTEL_PAGE_TABLE_CONTROL, 522 sInfo.gtt_physical_base | PAGE_TABLE_ENABLED); 523 read32(sInfo.registers + INTEL_PAGE_TABLE_CONTROL); 524 525 if (sInfo.scratch_page != 0) { 526 for (size_t i = sInfo.gtt_stolen_entries; i < sInfo.gtt_entries; i++) { 527 set_gtt_entry(sInfo, i << GTT_PAGE_SHIFT, sInfo.scratch_page); 528 } 529 read32(sInfo.gtt_base + sInfo.gtt_entries - 1); 530 } 531 532 asm("wbinvd;"); 533 534 *_aperture = NULL; 535 return B_OK; 536 } 537 538 539 void 540 intel_delete_aperture(void* aperture) 541 { 542 intel_unmap(sInfo); 543 } 544 545 546 static status_t 547 intel_get_aperture_info(void* aperture, aperture_info* info) 548 { 549 if (info == NULL) 550 return B_BAD_VALUE; 551 552 info->base = sInfo.aperture_base; 553 info->physical_base = sInfo.aperture_physical_base; 554 info->size = sInfo.aperture_size; 555 info->reserved_size = sInfo.aperture_stolen_size; 556 557 return B_OK; 558 } 559 560 561 status_t 562 intel_set_aperture_size(void* aperture, size_t size) 563 { 564 return B_ERROR; 565 } 566 567 568 static status_t 569 intel_bind_page(void* aperture, uint32 offset, phys_addr_t physicalAddress) 570 { 571 //TRACE("bind_page(offset %lx, physical %lx)\n", offset, physicalAddress); 572 573 set_gtt_entry(sInfo, offset, physicalAddress); 574 return B_OK; 575 } 576 577 578 static status_t 579 intel_unbind_page(void* aperture, uint32 offset) 580 { 581 //TRACE("unbind_page(offset %lx)\n", offset); 582 583 if (sInfo.scratch_page != 0) 584 set_gtt_entry(sInfo, offset, sInfo.scratch_page); 585 586 return B_OK; 587 } 588 589 590 void 591 intel_flush_tlbs(void* aperture) 592 { 593 read32(sInfo.gtt_base + sInfo.gtt_entries - 1); 594 asm("wbinvd;"); 595 } 596 597 598 // #pragma mark - 599 600 601 static status_t 602 intel_init() 603 { 604 TRACE("bus manager init\n"); 605 606 if (get_module(B_PCI_MODULE_NAME, (module_info**)&sPCI) != B_OK) 607 return B_ERROR; 608 609 bool found = false; 610 611 for (uint32 index = 0; sPCI->get_nth_pci_info(index, &sInfo.bridge) == B_OK; 612 index++) { 613 if (sInfo.bridge.vendor_id != VENDOR_ID_INTEL 614 || sInfo.bridge.class_base != PCI_bridge) 615 continue; 616 617 // check device 618 for (uint32 i = 0; i < sizeof(kSupportedDevices) 619 / sizeof(kSupportedDevices[0]); i++) { 620 if (sInfo.bridge.device_id == kSupportedDevices[i].bridge_id) { 621 sInfo.type = kSupportedDevices[i].type; 622 found = has_display_device(sInfo.display, 623 kSupportedDevices[i].display_id); 624 } 625 } 626 627 if (found) 628 break; 629 } 630 631 if (!found) 632 return ENODEV; 633 634 TRACE("found intel bridge\n"); 635 return B_OK; 636 } 637 638 639 static void 640 intel_uninit() 641 { 642 } 643 644 645 static int32 646 intel_std_ops(int32 op, ...) 647 { 648 switch (op) { 649 case B_MODULE_INIT: 650 return intel_init(); 651 case B_MODULE_UNINIT: 652 intel_uninit(); 653 return B_OK; 654 } 655 656 return B_BAD_VALUE; 657 } 658 659 660 static struct agp_gart_bus_module_info sIntelModuleInfo = { 661 { 662 "busses/agp_gart/intel/v0", 663 0, 664 intel_std_ops 665 }, 666 667 intel_create_aperture, 668 intel_delete_aperture, 669 670 intel_get_aperture_info, 671 intel_set_aperture_size, 672 intel_bind_page, 673 intel_unbind_page, 674 intel_flush_tlbs 675 }; 676 677 module_info* modules[] = { 678 (module_info*)&sIntelModuleInfo, 679 NULL 680 }; 681