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