1 /* 2 * Copyright 2012 Red Hat Inc. 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice shall be included in 12 * all copies or substantial portions of the Software. 13 * 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 20 * OTHER DEALINGS IN THE SOFTWARE. 21 * 22 * Authors: Ben Skeggs 23 */ 24 25 #include <linux/console.h> 26 #include <linux/delay.h> 27 #include <linux/module.h> 28 #include <linux/pci.h> 29 #include <linux/pm_runtime.h> 30 #include <linux/vga_switcheroo.h> 31 32 #include "drmP.h" 33 #include "drm_crtc_helper.h" 34 35 #include <core/device.h> 36 #include <core/gpuobj.h> 37 #include <core/option.h> 38 39 #include "nouveau_drm.h" 40 #include "nouveau_dma.h" 41 #include "nouveau_ttm.h" 42 #include "nouveau_gem.h" 43 #include "nouveau_agp.h" 44 #include "nouveau_vga.h" 45 #include "nouveau_sysfs.h" 46 #include "nouveau_hwmon.h" 47 #include "nouveau_acpi.h" 48 #include "nouveau_bios.h" 49 #include "nouveau_ioctl.h" 50 #include "nouveau_abi16.h" 51 #include "nouveau_fbcon.h" 52 #include "nouveau_fence.h" 53 #include "nouveau_debugfs.h" 54 #include "nouveau_usif.h" 55 #include "nouveau_connector.h" 56 #include "nouveau_platform.h" 57 58 MODULE_PARM_DESC(config, "option string to pass to driver core"); 59 static char *nouveau_config; 60 module_param_named(config, nouveau_config, charp, 0400); 61 62 MODULE_PARM_DESC(debug, "debug string to pass to driver core"); 63 static char *nouveau_debug; 64 module_param_named(debug, nouveau_debug, charp, 0400); 65 66 MODULE_PARM_DESC(noaccel, "disable kernel/abi16 acceleration"); 67 static int nouveau_noaccel = 0; 68 module_param_named(noaccel, nouveau_noaccel, int, 0400); 69 70 MODULE_PARM_DESC(modeset, "enable driver (default: auto, " 71 "0 = disabled, 1 = enabled, 2 = headless)"); 72 int nouveau_modeset = -1; 73 module_param_named(modeset, nouveau_modeset, int, 0400); 74 75 MODULE_PARM_DESC(runpm, "disable (0), force enable (1), optimus only default (-1)"); 76 int nouveau_runtime_pm = -1; 77 module_param_named(runpm, nouveau_runtime_pm, int, 0400); 78 79 static struct drm_driver driver_stub; 80 static struct drm_driver driver_pci; 81 static struct drm_driver driver_platform; 82 83 static u64 84 nouveau_pci_name(struct pci_dev *pdev) 85 { 86 u64 name = (u64)pci_domain_nr(pdev->bus) << 32; 87 name |= pdev->bus->number << 16; 88 name |= PCI_SLOT(pdev->devfn) << 8; 89 return name | PCI_FUNC(pdev->devfn); 90 } 91 92 static u64 93 nouveau_platform_name(struct platform_device *platformdev) 94 { 95 return platformdev->id; 96 } 97 98 static u64 99 nouveau_name(struct drm_device *dev) 100 { 101 if (dev->pdev) 102 return nouveau_pci_name(dev->pdev); 103 else 104 return nouveau_platform_name(dev->platformdev); 105 } 106 107 static int 108 nouveau_cli_create(struct drm_device *dev, const char *sname, 109 int size, void **pcli) 110 { 111 struct nouveau_cli *cli = *pcli = kzalloc(size, GFP_KERNEL); 112 int ret; 113 if (cli) { 114 snprintf(cli->name, sizeof(cli->name), "%s", sname); 115 cli->dev = dev; 116 117 ret = nvif_client_init(NULL, NULL, cli->name, nouveau_name(dev), 118 nouveau_config, nouveau_debug, 119 &cli->base); 120 if (ret == 0) { 121 mutex_init(&cli->mutex); 122 usif_client_init(cli); 123 } 124 return ret; 125 } 126 return -ENOMEM; 127 } 128 129 static void 130 nouveau_cli_destroy(struct nouveau_cli *cli) 131 { 132 nvkm_vm_ref(NULL, &nvxx_client(&cli->base)->vm, NULL); 133 nvif_client_fini(&cli->base); 134 usif_client_fini(cli); 135 kfree(cli); 136 } 137 138 static void 139 nouveau_accel_fini(struct nouveau_drm *drm) 140 { 141 nouveau_channel_del(&drm->channel); 142 nvif_object_fini(&drm->ntfy); 143 nvkm_gpuobj_ref(NULL, &drm->notify); 144 nvif_object_fini(&drm->nvsw); 145 nouveau_channel_del(&drm->cechan); 146 nvif_object_fini(&drm->ttm.copy); 147 if (drm->fence) 148 nouveau_fence(drm)->dtor(drm); 149 } 150 151 static void 152 nouveau_accel_init(struct nouveau_drm *drm) 153 { 154 struct nvif_device *device = &drm->device; 155 u32 arg0, arg1; 156 u32 sclass[16]; 157 int ret, i; 158 159 if (nouveau_noaccel) 160 return; 161 162 /* initialise synchronisation routines */ 163 /*XXX: this is crap, but the fence/channel stuff is a little 164 * backwards in some places. this will be fixed. 165 */ 166 ret = nvif_object_sclass(&device->base, sclass, ARRAY_SIZE(sclass)); 167 if (ret < 0) 168 return; 169 170 for (ret = -ENOSYS, i = 0; ret && i < ARRAY_SIZE(sclass); i++) { 171 switch (sclass[i]) { 172 case NV03_CHANNEL_DMA: 173 ret = nv04_fence_create(drm); 174 break; 175 case NV10_CHANNEL_DMA: 176 ret = nv10_fence_create(drm); 177 break; 178 case NV17_CHANNEL_DMA: 179 case NV40_CHANNEL_DMA: 180 ret = nv17_fence_create(drm); 181 break; 182 case NV50_CHANNEL_GPFIFO: 183 ret = nv50_fence_create(drm); 184 break; 185 case G82_CHANNEL_GPFIFO: 186 ret = nv84_fence_create(drm); 187 break; 188 case FERMI_CHANNEL_GPFIFO: 189 case KEPLER_CHANNEL_GPFIFO_A: 190 case MAXWELL_CHANNEL_GPFIFO_A: 191 ret = nvc0_fence_create(drm); 192 break; 193 default: 194 break; 195 } 196 } 197 198 if (ret) { 199 NV_ERROR(drm, "failed to initialise sync subsystem, %d\n", ret); 200 nouveau_accel_fini(drm); 201 return; 202 } 203 204 if (device->info.family >= NV_DEVICE_INFO_V0_KEPLER) { 205 ret = nouveau_channel_new(drm, &drm->device, NVDRM_CHAN + 1, 206 KEPLER_CHANNEL_GPFIFO_A_V0_ENGINE_CE0| 207 KEPLER_CHANNEL_GPFIFO_A_V0_ENGINE_CE1, 208 0, &drm->cechan); 209 if (ret) 210 NV_ERROR(drm, "failed to create ce channel, %d\n", ret); 211 212 arg0 = KEPLER_CHANNEL_GPFIFO_A_V0_ENGINE_GR; 213 arg1 = 1; 214 } else 215 if (device->info.chipset >= 0xa3 && 216 device->info.chipset != 0xaa && 217 device->info.chipset != 0xac) { 218 ret = nouveau_channel_new(drm, &drm->device, NVDRM_CHAN + 1, 219 NvDmaFB, NvDmaTT, &drm->cechan); 220 if (ret) 221 NV_ERROR(drm, "failed to create ce channel, %d\n", ret); 222 223 arg0 = NvDmaFB; 224 arg1 = NvDmaTT; 225 } else { 226 arg0 = NvDmaFB; 227 arg1 = NvDmaTT; 228 } 229 230 ret = nouveau_channel_new(drm, &drm->device, NVDRM_CHAN, arg0, arg1, 231 &drm->channel); 232 if (ret) { 233 NV_ERROR(drm, "failed to create kernel channel, %d\n", ret); 234 nouveau_accel_fini(drm); 235 return; 236 } 237 238 ret = nvif_object_init(drm->channel->object, NULL, NVDRM_NVSW, 239 nouveau_abi16_swclass(drm), NULL, 0, &drm->nvsw); 240 if (ret == 0) { 241 struct nvkm_sw_chan *swch; 242 ret = RING_SPACE(drm->channel, 2); 243 if (ret == 0) { 244 if (device->info.family < NV_DEVICE_INFO_V0_FERMI) { 245 BEGIN_NV04(drm->channel, NvSubSw, 0, 1); 246 OUT_RING (drm->channel, NVDRM_NVSW); 247 } else 248 if (device->info.family < NV_DEVICE_INFO_V0_KEPLER) { 249 BEGIN_NVC0(drm->channel, FermiSw, 0, 1); 250 OUT_RING (drm->channel, 0x001f0000); 251 } 252 } 253 swch = (void *)nvxx_object(&drm->nvsw)->parent; 254 swch->flip = nouveau_flip_complete; 255 swch->flip_data = drm->channel; 256 } 257 258 if (ret) { 259 NV_ERROR(drm, "failed to allocate software object, %d\n", ret); 260 nouveau_accel_fini(drm); 261 return; 262 } 263 264 if (device->info.family < NV_DEVICE_INFO_V0_FERMI) { 265 ret = nvkm_gpuobj_new(nvxx_object(&drm->device), NULL, 32, 266 0, 0, &drm->notify); 267 if (ret) { 268 NV_ERROR(drm, "failed to allocate notifier, %d\n", ret); 269 nouveau_accel_fini(drm); 270 return; 271 } 272 273 ret = nvif_object_init(drm->channel->object, NULL, NvNotify0, 274 NV_DMA_IN_MEMORY, 275 &(struct nv_dma_v0) { 276 .target = NV_DMA_V0_TARGET_VRAM, 277 .access = NV_DMA_V0_ACCESS_RDWR, 278 .start = drm->notify->addr, 279 .limit = drm->notify->addr + 31 280 }, sizeof(struct nv_dma_v0), 281 &drm->ntfy); 282 if (ret) { 283 nouveau_accel_fini(drm); 284 return; 285 } 286 } 287 288 289 nouveau_bo_move_init(drm); 290 } 291 292 static int nouveau_drm_probe(struct pci_dev *pdev, 293 const struct pci_device_id *pent) 294 { 295 struct nvkm_device *device; 296 struct apertures_struct *aper; 297 bool boot = false; 298 int ret; 299 300 /* remove conflicting drivers (vesafb, efifb etc) */ 301 aper = alloc_apertures(3); 302 if (!aper) 303 return -ENOMEM; 304 305 aper->ranges[0].base = pci_resource_start(pdev, 1); 306 aper->ranges[0].size = pci_resource_len(pdev, 1); 307 aper->count = 1; 308 309 if (pci_resource_len(pdev, 2)) { 310 aper->ranges[aper->count].base = pci_resource_start(pdev, 2); 311 aper->ranges[aper->count].size = pci_resource_len(pdev, 2); 312 aper->count++; 313 } 314 315 if (pci_resource_len(pdev, 3)) { 316 aper->ranges[aper->count].base = pci_resource_start(pdev, 3); 317 aper->ranges[aper->count].size = pci_resource_len(pdev, 3); 318 aper->count++; 319 } 320 321 #ifdef CONFIG_X86 322 boot = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW; 323 #endif 324 if (nouveau_modeset != 2) 325 remove_conflicting_framebuffers(aper, "nouveaufb", boot); 326 kfree(aper); 327 328 ret = nvkm_device_create(pdev, NVKM_BUS_PCI, 329 nouveau_pci_name(pdev), pci_name(pdev), 330 nouveau_config, nouveau_debug, &device); 331 if (ret) 332 return ret; 333 334 pci_set_master(pdev); 335 336 ret = drm_get_pci_dev(pdev, pent, &driver_pci); 337 if (ret) { 338 nvkm_object_ref(NULL, (struct nvkm_object **)&device); 339 return ret; 340 } 341 342 return 0; 343 } 344 345 #define PCI_CLASS_MULTIMEDIA_HD_AUDIO 0x0403 346 347 static void 348 nouveau_get_hdmi_dev(struct nouveau_drm *drm) 349 { 350 struct pci_dev *pdev = drm->dev->pdev; 351 352 if (!pdev) { 353 DRM_INFO("not a PCI device; no HDMI\n"); 354 drm->hdmi_device = NULL; 355 return; 356 } 357 358 /* subfunction one is a hdmi audio device? */ 359 drm->hdmi_device = pci_get_bus_and_slot((unsigned int)pdev->bus->number, 360 PCI_DEVFN(PCI_SLOT(pdev->devfn), 1)); 361 362 if (!drm->hdmi_device) { 363 NV_DEBUG(drm, "hdmi device not found %d %d %d\n", pdev->bus->number, PCI_SLOT(pdev->devfn), 1); 364 return; 365 } 366 367 if ((drm->hdmi_device->class >> 8) != PCI_CLASS_MULTIMEDIA_HD_AUDIO) { 368 NV_DEBUG(drm, "possible hdmi device not audio %d\n", drm->hdmi_device->class); 369 pci_dev_put(drm->hdmi_device); 370 drm->hdmi_device = NULL; 371 return; 372 } 373 } 374 375 static int 376 nouveau_drm_load(struct drm_device *dev, unsigned long flags) 377 { 378 struct pci_dev *pdev = dev->pdev; 379 struct nouveau_drm *drm; 380 int ret; 381 382 ret = nouveau_cli_create(dev, "DRM", sizeof(*drm), (void **)&drm); 383 if (ret) 384 return ret; 385 386 dev->dev_private = drm; 387 drm->dev = dev; 388 nvxx_client(&drm->client.base)->debug = 389 nvkm_dbgopt(nouveau_debug, "DRM"); 390 391 INIT_LIST_HEAD(&drm->clients); 392 spin_lock_init(&drm->tile.lock); 393 394 nouveau_get_hdmi_dev(drm); 395 396 /* make sure AGP controller is in a consistent state before we 397 * (possibly) execute vbios init tables (see nouveau_agp.h) 398 */ 399 if (pdev && drm_pci_device_is_agp(dev) && dev->agp) { 400 const u64 enables = NV_DEVICE_V0_DISABLE_IDENTIFY | 401 NV_DEVICE_V0_DISABLE_MMIO; 402 /* dummy device object, doesn't init anything, but allows 403 * agp code access to registers 404 */ 405 ret = nvif_device_init(&drm->client.base.base, NULL, 406 NVDRM_DEVICE, NV_DEVICE, 407 &(struct nv_device_v0) { 408 .device = ~0, 409 .disable = ~enables, 410 .debug0 = ~0, 411 }, sizeof(struct nv_device_v0), 412 &drm->device); 413 if (ret) 414 goto fail_device; 415 416 nouveau_agp_reset(drm); 417 nvif_device_fini(&drm->device); 418 } 419 420 ret = nvif_device_init(&drm->client.base.base, NULL, NVDRM_DEVICE, 421 NV_DEVICE, 422 &(struct nv_device_v0) { 423 .device = ~0, 424 .disable = 0, 425 .debug0 = 0, 426 }, sizeof(struct nv_device_v0), 427 &drm->device); 428 if (ret) 429 goto fail_device; 430 431 dev->irq_enabled = true; 432 433 /* workaround an odd issue on nvc1 by disabling the device's 434 * nosnoop capability. hopefully won't cause issues until a 435 * better fix is found - assuming there is one... 436 */ 437 if (drm->device.info.chipset == 0xc1) 438 nvif_mask(&drm->device, 0x00088080, 0x00000800, 0x00000000); 439 440 nouveau_vga_init(drm); 441 nouveau_agp_init(drm); 442 443 if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) { 444 ret = nvkm_vm_new(nvxx_device(&drm->device), 0, (1ULL << 40), 445 0x1000, &drm->client.vm); 446 if (ret) 447 goto fail_device; 448 449 nvxx_client(&drm->client.base)->vm = drm->client.vm; 450 } 451 452 ret = nouveau_ttm_init(drm); 453 if (ret) 454 goto fail_ttm; 455 456 ret = nouveau_bios_init(dev); 457 if (ret) 458 goto fail_bios; 459 460 ret = nouveau_display_create(dev); 461 if (ret) 462 goto fail_dispctor; 463 464 if (dev->mode_config.num_crtc) { 465 ret = nouveau_display_init(dev); 466 if (ret) 467 goto fail_dispinit; 468 } 469 470 nouveau_sysfs_init(dev); 471 nouveau_hwmon_init(dev); 472 nouveau_accel_init(drm); 473 nouveau_fbcon_init(dev); 474 475 if (nouveau_runtime_pm != 0) { 476 pm_runtime_use_autosuspend(dev->dev); 477 pm_runtime_set_autosuspend_delay(dev->dev, 5000); 478 pm_runtime_set_active(dev->dev); 479 pm_runtime_allow(dev->dev); 480 pm_runtime_mark_last_busy(dev->dev); 481 pm_runtime_put(dev->dev); 482 } 483 return 0; 484 485 fail_dispinit: 486 nouveau_display_destroy(dev); 487 fail_dispctor: 488 nouveau_bios_takedown(dev); 489 fail_bios: 490 nouveau_ttm_fini(drm); 491 fail_ttm: 492 nouveau_agp_fini(drm); 493 nouveau_vga_fini(drm); 494 fail_device: 495 nvif_device_fini(&drm->device); 496 nouveau_cli_destroy(&drm->client); 497 return ret; 498 } 499 500 static int 501 nouveau_drm_unload(struct drm_device *dev) 502 { 503 struct nouveau_drm *drm = nouveau_drm(dev); 504 505 pm_runtime_get_sync(dev->dev); 506 nouveau_fbcon_fini(dev); 507 nouveau_accel_fini(drm); 508 nouveau_hwmon_fini(dev); 509 nouveau_sysfs_fini(dev); 510 511 if (dev->mode_config.num_crtc) 512 nouveau_display_fini(dev); 513 nouveau_display_destroy(dev); 514 515 nouveau_bios_takedown(dev); 516 517 nouveau_ttm_fini(drm); 518 nouveau_agp_fini(drm); 519 nouveau_vga_fini(drm); 520 521 nvif_device_fini(&drm->device); 522 if (drm->hdmi_device) 523 pci_dev_put(drm->hdmi_device); 524 nouveau_cli_destroy(&drm->client); 525 return 0; 526 } 527 528 void 529 nouveau_drm_device_remove(struct drm_device *dev) 530 { 531 struct nouveau_drm *drm = nouveau_drm(dev); 532 struct nvkm_client *client; 533 struct nvkm_object *device; 534 535 dev->irq_enabled = false; 536 client = nvxx_client(&drm->client.base); 537 device = client->device; 538 drm_put_dev(dev); 539 540 nvkm_object_ref(NULL, &device); 541 } 542 543 static void 544 nouveau_drm_remove(struct pci_dev *pdev) 545 { 546 struct drm_device *dev = pci_get_drvdata(pdev); 547 548 nouveau_drm_device_remove(dev); 549 } 550 551 static int 552 nouveau_do_suspend(struct drm_device *dev, bool runtime) 553 { 554 struct nouveau_drm *drm = nouveau_drm(dev); 555 struct nouveau_cli *cli; 556 int ret; 557 558 if (dev->mode_config.num_crtc) { 559 NV_INFO(drm, "suspending console...\n"); 560 nouveau_fbcon_set_suspend(dev, 1); 561 NV_INFO(drm, "suspending display...\n"); 562 ret = nouveau_display_suspend(dev, runtime); 563 if (ret) 564 return ret; 565 } 566 567 NV_INFO(drm, "evicting buffers...\n"); 568 ttm_bo_evict_mm(&drm->ttm.bdev, TTM_PL_VRAM); 569 570 NV_INFO(drm, "waiting for kernel channels to go idle...\n"); 571 if (drm->cechan) { 572 ret = nouveau_channel_idle(drm->cechan); 573 if (ret) 574 goto fail_display; 575 } 576 577 if (drm->channel) { 578 ret = nouveau_channel_idle(drm->channel); 579 if (ret) 580 goto fail_display; 581 } 582 583 NV_INFO(drm, "suspending client object trees...\n"); 584 if (drm->fence && nouveau_fence(drm)->suspend) { 585 if (!nouveau_fence(drm)->suspend(drm)) { 586 ret = -ENOMEM; 587 goto fail_display; 588 } 589 } 590 591 list_for_each_entry(cli, &drm->clients, head) { 592 ret = nvif_client_suspend(&cli->base); 593 if (ret) 594 goto fail_client; 595 } 596 597 NV_INFO(drm, "suspending kernel object tree...\n"); 598 ret = nvif_client_suspend(&drm->client.base); 599 if (ret) 600 goto fail_client; 601 602 nouveau_agp_fini(drm); 603 return 0; 604 605 fail_client: 606 list_for_each_entry_continue_reverse(cli, &drm->clients, head) { 607 nvif_client_resume(&cli->base); 608 } 609 610 if (drm->fence && nouveau_fence(drm)->resume) 611 nouveau_fence(drm)->resume(drm); 612 613 fail_display: 614 if (dev->mode_config.num_crtc) { 615 NV_INFO(drm, "resuming display...\n"); 616 nouveau_display_resume(dev, runtime); 617 } 618 return ret; 619 } 620 621 static int 622 nouveau_do_resume(struct drm_device *dev, bool runtime) 623 { 624 struct nouveau_drm *drm = nouveau_drm(dev); 625 struct nouveau_cli *cli; 626 627 NV_INFO(drm, "re-enabling device...\n"); 628 629 nouveau_agp_reset(drm); 630 631 NV_INFO(drm, "resuming kernel object tree...\n"); 632 nvif_client_resume(&drm->client.base); 633 nouveau_agp_init(drm); 634 635 NV_INFO(drm, "resuming client object trees...\n"); 636 if (drm->fence && nouveau_fence(drm)->resume) 637 nouveau_fence(drm)->resume(drm); 638 639 list_for_each_entry(cli, &drm->clients, head) { 640 nvif_client_resume(&cli->base); 641 } 642 643 nouveau_run_vbios_init(dev); 644 645 if (dev->mode_config.num_crtc) { 646 NV_INFO(drm, "resuming display...\n"); 647 nouveau_display_resume(dev, runtime); 648 NV_INFO(drm, "resuming console...\n"); 649 nouveau_fbcon_set_suspend(dev, 0); 650 } 651 652 return 0; 653 } 654 655 int 656 nouveau_pmops_suspend(struct device *dev) 657 { 658 struct pci_dev *pdev = to_pci_dev(dev); 659 struct drm_device *drm_dev = pci_get_drvdata(pdev); 660 int ret; 661 662 if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF || 663 drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF) 664 return 0; 665 666 ret = nouveau_do_suspend(drm_dev, false); 667 if (ret) 668 return ret; 669 670 pci_save_state(pdev); 671 pci_disable_device(pdev); 672 pci_set_power_state(pdev, PCI_D3hot); 673 udelay(200); 674 return 0; 675 } 676 677 int 678 nouveau_pmops_resume(struct device *dev) 679 { 680 struct pci_dev *pdev = to_pci_dev(dev); 681 struct drm_device *drm_dev = pci_get_drvdata(pdev); 682 int ret; 683 684 if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF || 685 drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF) 686 return 0; 687 688 pci_set_power_state(pdev, PCI_D0); 689 pci_restore_state(pdev); 690 ret = pci_enable_device(pdev); 691 if (ret) 692 return ret; 693 pci_set_master(pdev); 694 695 return nouveau_do_resume(drm_dev, false); 696 } 697 698 static int 699 nouveau_pmops_freeze(struct device *dev) 700 { 701 struct pci_dev *pdev = to_pci_dev(dev); 702 struct drm_device *drm_dev = pci_get_drvdata(pdev); 703 return nouveau_do_suspend(drm_dev, false); 704 } 705 706 static int 707 nouveau_pmops_thaw(struct device *dev) 708 { 709 struct pci_dev *pdev = to_pci_dev(dev); 710 struct drm_device *drm_dev = pci_get_drvdata(pdev); 711 return nouveau_do_resume(drm_dev, false); 712 } 713 714 static int 715 nouveau_pmops_runtime_suspend(struct device *dev) 716 { 717 struct pci_dev *pdev = to_pci_dev(dev); 718 struct drm_device *drm_dev = pci_get_drvdata(pdev); 719 int ret; 720 721 if (nouveau_runtime_pm == 0) { 722 pm_runtime_forbid(dev); 723 return -EBUSY; 724 } 725 726 /* are we optimus enabled? */ 727 if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) { 728 DRM_DEBUG_DRIVER("failing to power off - not optimus\n"); 729 pm_runtime_forbid(dev); 730 return -EBUSY; 731 } 732 733 drm_kms_helper_poll_disable(drm_dev); 734 vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_OFF); 735 nouveau_switcheroo_optimus_dsm(); 736 ret = nouveau_do_suspend(drm_dev, true); 737 pci_save_state(pdev); 738 pci_disable_device(pdev); 739 pci_ignore_hotplug(pdev); 740 pci_set_power_state(pdev, PCI_D3cold); 741 drm_dev->switch_power_state = DRM_SWITCH_POWER_DYNAMIC_OFF; 742 return ret; 743 } 744 745 static int 746 nouveau_pmops_runtime_resume(struct device *dev) 747 { 748 struct pci_dev *pdev = to_pci_dev(dev); 749 struct drm_device *drm_dev = pci_get_drvdata(pdev); 750 struct nvif_device *device = &nouveau_drm(drm_dev)->device; 751 int ret; 752 753 if (nouveau_runtime_pm == 0) 754 return -EINVAL; 755 756 pci_set_power_state(pdev, PCI_D0); 757 pci_restore_state(pdev); 758 ret = pci_enable_device(pdev); 759 if (ret) 760 return ret; 761 pci_set_master(pdev); 762 763 ret = nouveau_do_resume(drm_dev, true); 764 drm_kms_helper_poll_enable(drm_dev); 765 /* do magic */ 766 nvif_mask(device, 0x88488, (1 << 25), (1 << 25)); 767 vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_ON); 768 drm_dev->switch_power_state = DRM_SWITCH_POWER_ON; 769 return ret; 770 } 771 772 static int 773 nouveau_pmops_runtime_idle(struct device *dev) 774 { 775 struct pci_dev *pdev = to_pci_dev(dev); 776 struct drm_device *drm_dev = pci_get_drvdata(pdev); 777 struct nouveau_drm *drm = nouveau_drm(drm_dev); 778 struct drm_crtc *crtc; 779 780 if (nouveau_runtime_pm == 0) { 781 pm_runtime_forbid(dev); 782 return -EBUSY; 783 } 784 785 /* are we optimus enabled? */ 786 if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) { 787 DRM_DEBUG_DRIVER("failing to power off - not optimus\n"); 788 pm_runtime_forbid(dev); 789 return -EBUSY; 790 } 791 792 /* if we have a hdmi audio device - make sure it has a driver loaded */ 793 if (drm->hdmi_device) { 794 if (!drm->hdmi_device->driver) { 795 DRM_DEBUG_DRIVER("failing to power off - no HDMI audio driver loaded\n"); 796 pm_runtime_mark_last_busy(dev); 797 return -EBUSY; 798 } 799 } 800 801 list_for_each_entry(crtc, &drm->dev->mode_config.crtc_list, head) { 802 if (crtc->enabled) { 803 DRM_DEBUG_DRIVER("failing to power off - crtc active\n"); 804 return -EBUSY; 805 } 806 } 807 pm_runtime_mark_last_busy(dev); 808 pm_runtime_autosuspend(dev); 809 /* we don't want the main rpm_idle to call suspend - we want to autosuspend */ 810 return 1; 811 } 812 813 static int 814 nouveau_drm_open(struct drm_device *dev, struct drm_file *fpriv) 815 { 816 struct nouveau_drm *drm = nouveau_drm(dev); 817 struct nouveau_cli *cli; 818 char name[32], tmpname[TASK_COMM_LEN]; 819 int ret; 820 821 /* need to bring up power immediately if opening device */ 822 ret = pm_runtime_get_sync(dev->dev); 823 if (ret < 0 && ret != -EACCES) 824 return ret; 825 826 get_task_comm(tmpname, current); 827 snprintf(name, sizeof(name), "%s[%d]", tmpname, pid_nr(fpriv->pid)); 828 829 ret = nouveau_cli_create(dev, name, sizeof(*cli), (void **)&cli); 830 831 if (ret) 832 goto out_suspend; 833 834 cli->base.super = false; 835 836 if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) { 837 ret = nvkm_vm_new(nvxx_device(&drm->device), 0, (1ULL << 40), 838 0x1000, &cli->vm); 839 if (ret) { 840 nouveau_cli_destroy(cli); 841 goto out_suspend; 842 } 843 844 nvxx_client(&cli->base)->vm = cli->vm; 845 } 846 847 fpriv->driver_priv = cli; 848 849 mutex_lock(&drm->client.mutex); 850 list_add(&cli->head, &drm->clients); 851 mutex_unlock(&drm->client.mutex); 852 853 out_suspend: 854 pm_runtime_mark_last_busy(dev->dev); 855 pm_runtime_put_autosuspend(dev->dev); 856 857 return ret; 858 } 859 860 static void 861 nouveau_drm_preclose(struct drm_device *dev, struct drm_file *fpriv) 862 { 863 struct nouveau_cli *cli = nouveau_cli(fpriv); 864 struct nouveau_drm *drm = nouveau_drm(dev); 865 866 pm_runtime_get_sync(dev->dev); 867 868 mutex_lock(&cli->mutex); 869 if (cli->abi16) 870 nouveau_abi16_fini(cli->abi16); 871 mutex_unlock(&cli->mutex); 872 873 mutex_lock(&drm->client.mutex); 874 list_del(&cli->head); 875 mutex_unlock(&drm->client.mutex); 876 877 } 878 879 static void 880 nouveau_drm_postclose(struct drm_device *dev, struct drm_file *fpriv) 881 { 882 struct nouveau_cli *cli = nouveau_cli(fpriv); 883 nouveau_cli_destroy(cli); 884 pm_runtime_mark_last_busy(dev->dev); 885 pm_runtime_put_autosuspend(dev->dev); 886 } 887 888 static const struct drm_ioctl_desc 889 nouveau_ioctls[] = { 890 DRM_IOCTL_DEF_DRV(NOUVEAU_GETPARAM, nouveau_abi16_ioctl_getparam, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW), 891 DRM_IOCTL_DEF_DRV(NOUVEAU_SETPARAM, nouveau_abi16_ioctl_setparam, DRM_UNLOCKED|DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 892 DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_ALLOC, nouveau_abi16_ioctl_channel_alloc, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW), 893 DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_FREE, nouveau_abi16_ioctl_channel_free, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW), 894 DRM_IOCTL_DEF_DRV(NOUVEAU_GROBJ_ALLOC, nouveau_abi16_ioctl_grobj_alloc, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW), 895 DRM_IOCTL_DEF_DRV(NOUVEAU_NOTIFIEROBJ_ALLOC, nouveau_abi16_ioctl_notifierobj_alloc, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW), 896 DRM_IOCTL_DEF_DRV(NOUVEAU_GPUOBJ_FREE, nouveau_abi16_ioctl_gpuobj_free, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW), 897 DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_NEW, nouveau_gem_ioctl_new, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW), 898 DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_PUSHBUF, nouveau_gem_ioctl_pushbuf, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW), 899 DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_PREP, nouveau_gem_ioctl_cpu_prep, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW), 900 DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_FINI, nouveau_gem_ioctl_cpu_fini, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW), 901 DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_INFO, nouveau_gem_ioctl_info, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW), 902 }; 903 904 long 905 nouveau_drm_ioctl(struct file *file, unsigned int cmd, unsigned long arg) 906 { 907 struct drm_file *filp = file->private_data; 908 struct drm_device *dev = filp->minor->dev; 909 long ret; 910 911 ret = pm_runtime_get_sync(dev->dev); 912 if (ret < 0 && ret != -EACCES) 913 return ret; 914 915 switch (_IOC_NR(cmd) - DRM_COMMAND_BASE) { 916 case DRM_NOUVEAU_NVIF: 917 ret = usif_ioctl(filp, (void __user *)arg, _IOC_SIZE(cmd)); 918 break; 919 default: 920 ret = drm_ioctl(file, cmd, arg); 921 break; 922 } 923 924 pm_runtime_mark_last_busy(dev->dev); 925 pm_runtime_put_autosuspend(dev->dev); 926 return ret; 927 } 928 929 static const struct file_operations 930 nouveau_driver_fops = { 931 .owner = THIS_MODULE, 932 .open = drm_open, 933 .release = drm_release, 934 .unlocked_ioctl = nouveau_drm_ioctl, 935 .mmap = nouveau_ttm_mmap, 936 .poll = drm_poll, 937 .read = drm_read, 938 #if defined(CONFIG_COMPAT) 939 .compat_ioctl = nouveau_compat_ioctl, 940 #endif 941 .llseek = noop_llseek, 942 }; 943 944 static struct drm_driver 945 driver_stub = { 946 .driver_features = 947 DRIVER_USE_AGP | 948 DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME | DRIVER_RENDER | 949 DRIVER_KMS_LEGACY_CONTEXT, 950 951 .load = nouveau_drm_load, 952 .unload = nouveau_drm_unload, 953 .open = nouveau_drm_open, 954 .preclose = nouveau_drm_preclose, 955 .postclose = nouveau_drm_postclose, 956 .lastclose = nouveau_vga_lastclose, 957 958 #if defined(CONFIG_DEBUG_FS) 959 .debugfs_init = nouveau_debugfs_init, 960 .debugfs_cleanup = nouveau_debugfs_takedown, 961 #endif 962 963 .get_vblank_counter = drm_vblank_count, 964 .enable_vblank = nouveau_display_vblank_enable, 965 .disable_vblank = nouveau_display_vblank_disable, 966 .get_scanout_position = nouveau_display_scanoutpos, 967 .get_vblank_timestamp = nouveau_display_vblstamp, 968 969 .ioctls = nouveau_ioctls, 970 .num_ioctls = ARRAY_SIZE(nouveau_ioctls), 971 .fops = &nouveau_driver_fops, 972 973 .prime_handle_to_fd = drm_gem_prime_handle_to_fd, 974 .prime_fd_to_handle = drm_gem_prime_fd_to_handle, 975 .gem_prime_export = drm_gem_prime_export, 976 .gem_prime_import = drm_gem_prime_import, 977 .gem_prime_pin = nouveau_gem_prime_pin, 978 .gem_prime_res_obj = nouveau_gem_prime_res_obj, 979 .gem_prime_unpin = nouveau_gem_prime_unpin, 980 .gem_prime_get_sg_table = nouveau_gem_prime_get_sg_table, 981 .gem_prime_import_sg_table = nouveau_gem_prime_import_sg_table, 982 .gem_prime_vmap = nouveau_gem_prime_vmap, 983 .gem_prime_vunmap = nouveau_gem_prime_vunmap, 984 985 .gem_free_object = nouveau_gem_object_del, 986 .gem_open_object = nouveau_gem_object_open, 987 .gem_close_object = nouveau_gem_object_close, 988 989 .dumb_create = nouveau_display_dumb_create, 990 .dumb_map_offset = nouveau_display_dumb_map_offset, 991 .dumb_destroy = drm_gem_dumb_destroy, 992 993 .name = DRIVER_NAME, 994 .desc = DRIVER_DESC, 995 #ifdef GIT_REVISION 996 .date = GIT_REVISION, 997 #else 998 .date = DRIVER_DATE, 999 #endif 1000 .major = DRIVER_MAJOR, 1001 .minor = DRIVER_MINOR, 1002 .patchlevel = DRIVER_PATCHLEVEL, 1003 }; 1004 1005 static struct pci_device_id 1006 nouveau_drm_pci_table[] = { 1007 { 1008 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID), 1009 .class = PCI_BASE_CLASS_DISPLAY << 16, 1010 .class_mask = 0xff << 16, 1011 }, 1012 { 1013 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA_SGS, PCI_ANY_ID), 1014 .class = PCI_BASE_CLASS_DISPLAY << 16, 1015 .class_mask = 0xff << 16, 1016 }, 1017 {} 1018 }; 1019 1020 static void nouveau_display_options(void) 1021 { 1022 DRM_DEBUG_DRIVER("Loading Nouveau with parameters:\n"); 1023 1024 DRM_DEBUG_DRIVER("... tv_disable : %d\n", nouveau_tv_disable); 1025 DRM_DEBUG_DRIVER("... ignorelid : %d\n", nouveau_ignorelid); 1026 DRM_DEBUG_DRIVER("... duallink : %d\n", nouveau_duallink); 1027 DRM_DEBUG_DRIVER("... nofbaccel : %d\n", nouveau_nofbaccel); 1028 DRM_DEBUG_DRIVER("... config : %s\n", nouveau_config); 1029 DRM_DEBUG_DRIVER("... debug : %s\n", nouveau_debug); 1030 DRM_DEBUG_DRIVER("... noaccel : %d\n", nouveau_noaccel); 1031 DRM_DEBUG_DRIVER("... modeset : %d\n", nouveau_modeset); 1032 DRM_DEBUG_DRIVER("... runpm : %d\n", nouveau_runtime_pm); 1033 DRM_DEBUG_DRIVER("... vram_pushbuf : %d\n", nouveau_vram_pushbuf); 1034 DRM_DEBUG_DRIVER("... pstate : %d\n", nouveau_pstate); 1035 } 1036 1037 static const struct dev_pm_ops nouveau_pm_ops = { 1038 .suspend = nouveau_pmops_suspend, 1039 .resume = nouveau_pmops_resume, 1040 .freeze = nouveau_pmops_freeze, 1041 .thaw = nouveau_pmops_thaw, 1042 .poweroff = nouveau_pmops_freeze, 1043 .restore = nouveau_pmops_resume, 1044 .runtime_suspend = nouveau_pmops_runtime_suspend, 1045 .runtime_resume = nouveau_pmops_runtime_resume, 1046 .runtime_idle = nouveau_pmops_runtime_idle, 1047 }; 1048 1049 static struct pci_driver 1050 nouveau_drm_pci_driver = { 1051 .name = "nouveau", 1052 .id_table = nouveau_drm_pci_table, 1053 .probe = nouveau_drm_probe, 1054 .remove = nouveau_drm_remove, 1055 .driver.pm = &nouveau_pm_ops, 1056 }; 1057 1058 struct drm_device * 1059 nouveau_platform_device_create_(struct platform_device *pdev, int size, 1060 void **pobject) 1061 { 1062 struct drm_device *drm; 1063 int err; 1064 1065 err = nvkm_device_create_(pdev, NVKM_BUS_PLATFORM, 1066 nouveau_platform_name(pdev), 1067 dev_name(&pdev->dev), nouveau_config, 1068 nouveau_debug, size, pobject); 1069 if (err) 1070 return ERR_PTR(err); 1071 1072 drm = drm_dev_alloc(&driver_platform, &pdev->dev); 1073 if (!drm) { 1074 err = -ENOMEM; 1075 goto err_free; 1076 } 1077 1078 err = drm_dev_set_unique(drm, "%s", dev_name(&pdev->dev)); 1079 if (err < 0) 1080 goto err_free; 1081 1082 drm->platformdev = pdev; 1083 platform_set_drvdata(pdev, drm); 1084 1085 return drm; 1086 1087 err_free: 1088 nvkm_object_ref(NULL, (struct nvkm_object **)pobject); 1089 1090 return ERR_PTR(err); 1091 } 1092 1093 static int __init 1094 nouveau_drm_init(void) 1095 { 1096 driver_pci = driver_stub; 1097 driver_pci.set_busid = drm_pci_set_busid; 1098 driver_platform = driver_stub; 1099 driver_platform.set_busid = drm_platform_set_busid; 1100 1101 nouveau_display_options(); 1102 1103 if (nouveau_modeset == -1) { 1104 #ifdef CONFIG_VGA_CONSOLE 1105 if (vgacon_text_force()) 1106 nouveau_modeset = 0; 1107 #endif 1108 } 1109 1110 if (!nouveau_modeset) 1111 return 0; 1112 1113 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER 1114 platform_driver_register(&nouveau_platform_driver); 1115 #endif 1116 1117 nouveau_register_dsm_handler(); 1118 return drm_pci_init(&driver_pci, &nouveau_drm_pci_driver); 1119 } 1120 1121 static void __exit 1122 nouveau_drm_exit(void) 1123 { 1124 if (!nouveau_modeset) 1125 return; 1126 1127 drm_pci_exit(&driver_pci, &nouveau_drm_pci_driver); 1128 nouveau_unregister_dsm_handler(); 1129 1130 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER 1131 platform_driver_unregister(&nouveau_platform_driver); 1132 #endif 1133 } 1134 1135 module_init(nouveau_drm_init); 1136 module_exit(nouveau_drm_exit); 1137 1138 MODULE_DEVICE_TABLE(pci, nouveau_drm_pci_table); 1139 MODULE_AUTHOR(DRIVER_AUTHOR); 1140 MODULE_DESCRIPTION(DRIVER_DESC); 1141 MODULE_LICENSE("GPL and additional rights"); 1142