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 <drm/drmP.h> 33 #include <drm/drm_crtc_helper.h> 34 35 #include <core/gpuobj.h> 36 #include <core/option.h> 37 #include <core/pci.h> 38 #include <core/tegra.h> 39 40 #include <nvif/driver.h> 41 #include <nvif/fifo.h> 42 #include <nvif/user.h> 43 44 #include <nvif/class.h> 45 #include <nvif/cl0002.h> 46 #include <nvif/cla06f.h> 47 #include <nvif/if0004.h> 48 49 #include "nouveau_drv.h" 50 #include "nouveau_dma.h" 51 #include "nouveau_ttm.h" 52 #include "nouveau_gem.h" 53 #include "nouveau_vga.h" 54 #include "nouveau_led.h" 55 #include "nouveau_hwmon.h" 56 #include "nouveau_acpi.h" 57 #include "nouveau_bios.h" 58 #include "nouveau_ioctl.h" 59 #include "nouveau_abi16.h" 60 #include "nouveau_fbcon.h" 61 #include "nouveau_fence.h" 62 #include "nouveau_debugfs.h" 63 #include "nouveau_usif.h" 64 #include "nouveau_connector.h" 65 #include "nouveau_platform.h" 66 67 MODULE_PARM_DESC(config, "option string to pass to driver core"); 68 static char *nouveau_config; 69 module_param_named(config, nouveau_config, charp, 0400); 70 71 MODULE_PARM_DESC(debug, "debug string to pass to driver core"); 72 static char *nouveau_debug; 73 module_param_named(debug, nouveau_debug, charp, 0400); 74 75 MODULE_PARM_DESC(noaccel, "disable kernel/abi16 acceleration"); 76 static int nouveau_noaccel = 0; 77 module_param_named(noaccel, nouveau_noaccel, int, 0400); 78 79 MODULE_PARM_DESC(modeset, "enable driver (default: auto, " 80 "0 = disabled, 1 = enabled, 2 = headless)"); 81 int nouveau_modeset = -1; 82 module_param_named(modeset, nouveau_modeset, int, 0400); 83 84 MODULE_PARM_DESC(atomic, "Expose atomic ioctl (default: disabled)"); 85 static int nouveau_atomic = 0; 86 module_param_named(atomic, nouveau_atomic, int, 0400); 87 88 MODULE_PARM_DESC(runpm, "disable (0), force enable (1), optimus only default (-1)"); 89 static int nouveau_runtime_pm = -1; 90 module_param_named(runpm, nouveau_runtime_pm, int, 0400); 91 92 static struct drm_driver driver_stub; 93 static struct drm_driver driver_pci; 94 static struct drm_driver driver_platform; 95 96 static u64 97 nouveau_pci_name(struct pci_dev *pdev) 98 { 99 u64 name = (u64)pci_domain_nr(pdev->bus) << 32; 100 name |= pdev->bus->number << 16; 101 name |= PCI_SLOT(pdev->devfn) << 8; 102 return name | PCI_FUNC(pdev->devfn); 103 } 104 105 static u64 106 nouveau_platform_name(struct platform_device *platformdev) 107 { 108 return platformdev->id; 109 } 110 111 static u64 112 nouveau_name(struct drm_device *dev) 113 { 114 if (dev->pdev) 115 return nouveau_pci_name(dev->pdev); 116 else 117 return nouveau_platform_name(to_platform_device(dev->dev)); 118 } 119 120 static inline bool 121 nouveau_cli_work_ready(struct dma_fence *fence) 122 { 123 if (!dma_fence_is_signaled(fence)) 124 return false; 125 dma_fence_put(fence); 126 return true; 127 } 128 129 static void 130 nouveau_cli_work(struct work_struct *w) 131 { 132 struct nouveau_cli *cli = container_of(w, typeof(*cli), work); 133 struct nouveau_cli_work *work, *wtmp; 134 mutex_lock(&cli->lock); 135 list_for_each_entry_safe(work, wtmp, &cli->worker, head) { 136 if (!work->fence || nouveau_cli_work_ready(work->fence)) { 137 list_del(&work->head); 138 work->func(work); 139 } 140 } 141 mutex_unlock(&cli->lock); 142 } 143 144 static void 145 nouveau_cli_work_fence(struct dma_fence *fence, struct dma_fence_cb *cb) 146 { 147 struct nouveau_cli_work *work = container_of(cb, typeof(*work), cb); 148 schedule_work(&work->cli->work); 149 } 150 151 void 152 nouveau_cli_work_queue(struct nouveau_cli *cli, struct dma_fence *fence, 153 struct nouveau_cli_work *work) 154 { 155 work->fence = dma_fence_get(fence); 156 work->cli = cli; 157 mutex_lock(&cli->lock); 158 list_add_tail(&work->head, &cli->worker); 159 if (dma_fence_add_callback(fence, &work->cb, nouveau_cli_work_fence)) 160 nouveau_cli_work_fence(fence, &work->cb); 161 mutex_unlock(&cli->lock); 162 } 163 164 static void 165 nouveau_cli_fini(struct nouveau_cli *cli) 166 { 167 /* All our channels are dead now, which means all the fences they 168 * own are signalled, and all callback functions have been called. 169 * 170 * So, after flushing the workqueue, there should be nothing left. 171 */ 172 flush_work(&cli->work); 173 WARN_ON(!list_empty(&cli->worker)); 174 175 usif_client_fini(cli); 176 nouveau_vmm_fini(&cli->vmm); 177 nvif_mmu_fini(&cli->mmu); 178 nvif_device_fini(&cli->device); 179 mutex_lock(&cli->drm->master.lock); 180 nvif_client_fini(&cli->base); 181 mutex_unlock(&cli->drm->master.lock); 182 } 183 184 static int 185 nouveau_cli_init(struct nouveau_drm *drm, const char *sname, 186 struct nouveau_cli *cli) 187 { 188 static const struct nvif_mclass 189 mems[] = { 190 { NVIF_CLASS_MEM_GF100, -1 }, 191 { NVIF_CLASS_MEM_NV50 , -1 }, 192 { NVIF_CLASS_MEM_NV04 , -1 }, 193 {} 194 }; 195 static const struct nvif_mclass 196 mmus[] = { 197 { NVIF_CLASS_MMU_GF100, -1 }, 198 { NVIF_CLASS_MMU_NV50 , -1 }, 199 { NVIF_CLASS_MMU_NV04 , -1 }, 200 {} 201 }; 202 static const struct nvif_mclass 203 vmms[] = { 204 { NVIF_CLASS_VMM_GP100, -1 }, 205 { NVIF_CLASS_VMM_GM200, -1 }, 206 { NVIF_CLASS_VMM_GF100, -1 }, 207 { NVIF_CLASS_VMM_NV50 , -1 }, 208 { NVIF_CLASS_VMM_NV04 , -1 }, 209 {} 210 }; 211 u64 device = nouveau_name(drm->dev); 212 int ret; 213 214 snprintf(cli->name, sizeof(cli->name), "%s", sname); 215 cli->drm = drm; 216 mutex_init(&cli->mutex); 217 usif_client_init(cli); 218 219 INIT_WORK(&cli->work, nouveau_cli_work); 220 INIT_LIST_HEAD(&cli->worker); 221 mutex_init(&cli->lock); 222 223 if (cli == &drm->master) { 224 ret = nvif_driver_init(NULL, nouveau_config, nouveau_debug, 225 cli->name, device, &cli->base); 226 } else { 227 mutex_lock(&drm->master.lock); 228 ret = nvif_client_init(&drm->master.base, cli->name, device, 229 &cli->base); 230 mutex_unlock(&drm->master.lock); 231 } 232 if (ret) { 233 NV_ERROR(drm, "Client allocation failed: %d\n", ret); 234 goto done; 235 } 236 237 ret = nvif_device_init(&cli->base.object, 0, NV_DEVICE, 238 &(struct nv_device_v0) { 239 .device = ~0, 240 }, sizeof(struct nv_device_v0), 241 &cli->device); 242 if (ret) { 243 NV_ERROR(drm, "Device allocation failed: %d\n", ret); 244 goto done; 245 } 246 247 ret = nvif_mclass(&cli->device.object, mmus); 248 if (ret < 0) { 249 NV_ERROR(drm, "No supported MMU class\n"); 250 goto done; 251 } 252 253 ret = nvif_mmu_init(&cli->device.object, mmus[ret].oclass, &cli->mmu); 254 if (ret) { 255 NV_ERROR(drm, "MMU allocation failed: %d\n", ret); 256 goto done; 257 } 258 259 ret = nvif_mclass(&cli->mmu.object, vmms); 260 if (ret < 0) { 261 NV_ERROR(drm, "No supported VMM class\n"); 262 goto done; 263 } 264 265 ret = nouveau_vmm_init(cli, vmms[ret].oclass, &cli->vmm); 266 if (ret) { 267 NV_ERROR(drm, "VMM allocation failed: %d\n", ret); 268 goto done; 269 } 270 271 ret = nvif_mclass(&cli->mmu.object, mems); 272 if (ret < 0) { 273 NV_ERROR(drm, "No supported MEM class\n"); 274 goto done; 275 } 276 277 cli->mem = &mems[ret]; 278 return 0; 279 done: 280 if (ret) 281 nouveau_cli_fini(cli); 282 return ret; 283 } 284 285 static void 286 nouveau_accel_fini(struct nouveau_drm *drm) 287 { 288 nouveau_channel_idle(drm->channel); 289 nvif_object_fini(&drm->ntfy); 290 nvkm_gpuobj_del(&drm->notify); 291 nvif_notify_fini(&drm->flip); 292 nvif_object_fini(&drm->nvsw); 293 nouveau_channel_del(&drm->channel); 294 295 nouveau_channel_idle(drm->cechan); 296 nvif_object_fini(&drm->ttm.copy); 297 nouveau_channel_del(&drm->cechan); 298 299 if (drm->fence) 300 nouveau_fence(drm)->dtor(drm); 301 } 302 303 static void 304 nouveau_accel_init(struct nouveau_drm *drm) 305 { 306 struct nvif_device *device = &drm->client.device; 307 struct nvif_sclass *sclass; 308 u32 arg0, arg1; 309 int ret, i, n; 310 311 if (nouveau_noaccel) 312 return; 313 314 ret = nouveau_channels_init(drm); 315 if (ret) 316 return; 317 318 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_VOLTA) { 319 ret = nvif_user_init(device); 320 if (ret) 321 return; 322 } 323 324 /* initialise synchronisation routines */ 325 /*XXX: this is crap, but the fence/channel stuff is a little 326 * backwards in some places. this will be fixed. 327 */ 328 ret = n = nvif_object_sclass_get(&device->object, &sclass); 329 if (ret < 0) 330 return; 331 332 for (ret = -ENOSYS, i = 0; i < n; i++) { 333 switch (sclass[i].oclass) { 334 case NV03_CHANNEL_DMA: 335 ret = nv04_fence_create(drm); 336 break; 337 case NV10_CHANNEL_DMA: 338 ret = nv10_fence_create(drm); 339 break; 340 case NV17_CHANNEL_DMA: 341 case NV40_CHANNEL_DMA: 342 ret = nv17_fence_create(drm); 343 break; 344 case NV50_CHANNEL_GPFIFO: 345 ret = nv50_fence_create(drm); 346 break; 347 case G82_CHANNEL_GPFIFO: 348 ret = nv84_fence_create(drm); 349 break; 350 case FERMI_CHANNEL_GPFIFO: 351 case KEPLER_CHANNEL_GPFIFO_A: 352 case KEPLER_CHANNEL_GPFIFO_B: 353 case MAXWELL_CHANNEL_GPFIFO_A: 354 case PASCAL_CHANNEL_GPFIFO_A: 355 case VOLTA_CHANNEL_GPFIFO_A: 356 ret = nvc0_fence_create(drm); 357 break; 358 default: 359 break; 360 } 361 } 362 363 nvif_object_sclass_put(&sclass); 364 if (ret) { 365 NV_ERROR(drm, "failed to initialise sync subsystem, %d\n", ret); 366 nouveau_accel_fini(drm); 367 return; 368 } 369 370 if (device->info.family >= NV_DEVICE_INFO_V0_KEPLER) { 371 ret = nouveau_channel_new(drm, &drm->client.device, 372 nvif_fifo_runlist_ce(device), 0, 373 &drm->cechan); 374 if (ret) 375 NV_ERROR(drm, "failed to create ce channel, %d\n", ret); 376 377 arg0 = nvif_fifo_runlist(device, NV_DEVICE_INFO_ENGINE_GR); 378 arg1 = 1; 379 } else 380 if (device->info.chipset >= 0xa3 && 381 device->info.chipset != 0xaa && 382 device->info.chipset != 0xac) { 383 ret = nouveau_channel_new(drm, &drm->client.device, 384 NvDmaFB, NvDmaTT, &drm->cechan); 385 if (ret) 386 NV_ERROR(drm, "failed to create ce channel, %d\n", ret); 387 388 arg0 = NvDmaFB; 389 arg1 = NvDmaTT; 390 } else { 391 arg0 = NvDmaFB; 392 arg1 = NvDmaTT; 393 } 394 395 ret = nouveau_channel_new(drm, &drm->client.device, 396 arg0, arg1, &drm->channel); 397 if (ret) { 398 NV_ERROR(drm, "failed to create kernel channel, %d\n", ret); 399 nouveau_accel_fini(drm); 400 return; 401 } 402 403 if (device->info.family < NV_DEVICE_INFO_V0_TESLA) { 404 ret = nvif_object_init(&drm->channel->user, NVDRM_NVSW, 405 nouveau_abi16_swclass(drm), NULL, 0, 406 &drm->nvsw); 407 if (ret == 0) { 408 ret = RING_SPACE(drm->channel, 2); 409 if (ret == 0) { 410 BEGIN_NV04(drm->channel, NvSubSw, 0, 1); 411 OUT_RING (drm->channel, drm->nvsw.handle); 412 } 413 414 ret = nvif_notify_init(&drm->nvsw, 415 nouveau_flip_complete, 416 false, NV04_NVSW_NTFY_UEVENT, 417 NULL, 0, 0, &drm->flip); 418 if (ret == 0) 419 ret = nvif_notify_get(&drm->flip); 420 if (ret) { 421 nouveau_accel_fini(drm); 422 return; 423 } 424 } 425 426 if (ret) { 427 NV_ERROR(drm, "failed to allocate sw class, %d\n", ret); 428 nouveau_accel_fini(drm); 429 return; 430 } 431 } 432 433 if (device->info.family < NV_DEVICE_INFO_V0_FERMI) { 434 ret = nvkm_gpuobj_new(nvxx_device(&drm->client.device), 32, 0, 435 false, NULL, &drm->notify); 436 if (ret) { 437 NV_ERROR(drm, "failed to allocate notifier, %d\n", ret); 438 nouveau_accel_fini(drm); 439 return; 440 } 441 442 ret = nvif_object_init(&drm->channel->user, NvNotify0, 443 NV_DMA_IN_MEMORY, 444 &(struct nv_dma_v0) { 445 .target = NV_DMA_V0_TARGET_VRAM, 446 .access = NV_DMA_V0_ACCESS_RDWR, 447 .start = drm->notify->addr, 448 .limit = drm->notify->addr + 31 449 }, sizeof(struct nv_dma_v0), 450 &drm->ntfy); 451 if (ret) { 452 nouveau_accel_fini(drm); 453 return; 454 } 455 } 456 457 458 nouveau_bo_move_init(drm); 459 } 460 461 static int nouveau_drm_probe(struct pci_dev *pdev, 462 const struct pci_device_id *pent) 463 { 464 struct nvkm_device *device; 465 struct apertures_struct *aper; 466 bool boot = false; 467 int ret; 468 469 if (vga_switcheroo_client_probe_defer(pdev)) 470 return -EPROBE_DEFER; 471 472 /* We need to check that the chipset is supported before booting 473 * fbdev off the hardware, as there's no way to put it back. 474 */ 475 ret = nvkm_device_pci_new(pdev, NULL, "error", true, false, 0, &device); 476 if (ret) 477 return ret; 478 479 nvkm_device_del(&device); 480 481 /* Remove conflicting drivers (vesafb, efifb etc). */ 482 aper = alloc_apertures(3); 483 if (!aper) 484 return -ENOMEM; 485 486 aper->ranges[0].base = pci_resource_start(pdev, 1); 487 aper->ranges[0].size = pci_resource_len(pdev, 1); 488 aper->count = 1; 489 490 if (pci_resource_len(pdev, 2)) { 491 aper->ranges[aper->count].base = pci_resource_start(pdev, 2); 492 aper->ranges[aper->count].size = pci_resource_len(pdev, 2); 493 aper->count++; 494 } 495 496 if (pci_resource_len(pdev, 3)) { 497 aper->ranges[aper->count].base = pci_resource_start(pdev, 3); 498 aper->ranges[aper->count].size = pci_resource_len(pdev, 3); 499 aper->count++; 500 } 501 502 #ifdef CONFIG_X86 503 boot = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW; 504 #endif 505 if (nouveau_modeset != 2) 506 drm_fb_helper_remove_conflicting_framebuffers(aper, "nouveaufb", boot); 507 kfree(aper); 508 509 ret = nvkm_device_pci_new(pdev, nouveau_config, nouveau_debug, 510 true, true, ~0ULL, &device); 511 if (ret) 512 return ret; 513 514 pci_set_master(pdev); 515 516 if (nouveau_atomic) 517 driver_pci.driver_features |= DRIVER_ATOMIC; 518 519 ret = drm_get_pci_dev(pdev, pent, &driver_pci); 520 if (ret) { 521 nvkm_device_del(&device); 522 return ret; 523 } 524 525 return 0; 526 } 527 528 static int 529 nouveau_drm_load(struct drm_device *dev, unsigned long flags) 530 { 531 struct nouveau_drm *drm; 532 int ret; 533 534 if (!(drm = kzalloc(sizeof(*drm), GFP_KERNEL))) 535 return -ENOMEM; 536 dev->dev_private = drm; 537 drm->dev = dev; 538 539 ret = nouveau_cli_init(drm, "DRM-master", &drm->master); 540 if (ret) 541 return ret; 542 543 ret = nouveau_cli_init(drm, "DRM", &drm->client); 544 if (ret) 545 return ret; 546 547 dev->irq_enabled = true; 548 549 nvxx_client(&drm->client.base)->debug = 550 nvkm_dbgopt(nouveau_debug, "DRM"); 551 552 INIT_LIST_HEAD(&drm->clients); 553 spin_lock_init(&drm->tile.lock); 554 555 /* workaround an odd issue on nvc1 by disabling the device's 556 * nosnoop capability. hopefully won't cause issues until a 557 * better fix is found - assuming there is one... 558 */ 559 if (drm->client.device.info.chipset == 0xc1) 560 nvif_mask(&drm->client.device.object, 0x00088080, 0x00000800, 0x00000000); 561 562 nouveau_vga_init(drm); 563 564 ret = nouveau_ttm_init(drm); 565 if (ret) 566 goto fail_ttm; 567 568 ret = nouveau_bios_init(dev); 569 if (ret) 570 goto fail_bios; 571 572 ret = nouveau_display_create(dev); 573 if (ret) 574 goto fail_dispctor; 575 576 if (dev->mode_config.num_crtc) { 577 ret = nouveau_display_init(dev); 578 if (ret) 579 goto fail_dispinit; 580 } 581 582 nouveau_debugfs_init(drm); 583 nouveau_hwmon_init(dev); 584 nouveau_accel_init(drm); 585 nouveau_fbcon_init(dev); 586 nouveau_led_init(dev); 587 588 if (nouveau_pmops_runtime()) { 589 pm_runtime_use_autosuspend(dev->dev); 590 pm_runtime_set_autosuspend_delay(dev->dev, 5000); 591 pm_runtime_set_active(dev->dev); 592 pm_runtime_allow(dev->dev); 593 pm_runtime_mark_last_busy(dev->dev); 594 pm_runtime_put(dev->dev); 595 } else { 596 /* enable polling for external displays */ 597 drm_kms_helper_poll_enable(dev); 598 } 599 return 0; 600 601 fail_dispinit: 602 nouveau_display_destroy(dev); 603 fail_dispctor: 604 nouveau_bios_takedown(dev); 605 fail_bios: 606 nouveau_ttm_fini(drm); 607 fail_ttm: 608 nouveau_vga_fini(drm); 609 nouveau_cli_fini(&drm->client); 610 nouveau_cli_fini(&drm->master); 611 kfree(drm); 612 return ret; 613 } 614 615 static void 616 nouveau_drm_unload(struct drm_device *dev) 617 { 618 struct nouveau_drm *drm = nouveau_drm(dev); 619 620 if (nouveau_pmops_runtime()) { 621 pm_runtime_get_sync(dev->dev); 622 pm_runtime_forbid(dev->dev); 623 } 624 625 nouveau_led_fini(dev); 626 nouveau_fbcon_fini(dev); 627 nouveau_accel_fini(drm); 628 nouveau_hwmon_fini(dev); 629 nouveau_debugfs_fini(drm); 630 631 if (dev->mode_config.num_crtc) 632 nouveau_display_fini(dev, false); 633 nouveau_display_destroy(dev); 634 635 nouveau_bios_takedown(dev); 636 637 nouveau_ttm_fini(drm); 638 nouveau_vga_fini(drm); 639 640 nouveau_cli_fini(&drm->client); 641 nouveau_cli_fini(&drm->master); 642 kfree(drm); 643 } 644 645 void 646 nouveau_drm_device_remove(struct drm_device *dev) 647 { 648 struct nouveau_drm *drm = nouveau_drm(dev); 649 struct nvkm_client *client; 650 struct nvkm_device *device; 651 652 dev->irq_enabled = false; 653 client = nvxx_client(&drm->client.base); 654 device = nvkm_device_find(client->device); 655 drm_put_dev(dev); 656 657 nvkm_device_del(&device); 658 } 659 660 static void 661 nouveau_drm_remove(struct pci_dev *pdev) 662 { 663 struct drm_device *dev = pci_get_drvdata(pdev); 664 665 nouveau_drm_device_remove(dev); 666 } 667 668 static int 669 nouveau_do_suspend(struct drm_device *dev, bool runtime) 670 { 671 struct nouveau_drm *drm = nouveau_drm(dev); 672 int ret; 673 674 nouveau_led_suspend(dev); 675 676 if (dev->mode_config.num_crtc) { 677 NV_DEBUG(drm, "suspending console...\n"); 678 nouveau_fbcon_set_suspend(dev, 1); 679 NV_DEBUG(drm, "suspending display...\n"); 680 ret = nouveau_display_suspend(dev, runtime); 681 if (ret) 682 return ret; 683 } 684 685 NV_DEBUG(drm, "evicting buffers...\n"); 686 ttm_bo_evict_mm(&drm->ttm.bdev, TTM_PL_VRAM); 687 688 NV_DEBUG(drm, "waiting for kernel channels to go idle...\n"); 689 if (drm->cechan) { 690 ret = nouveau_channel_idle(drm->cechan); 691 if (ret) 692 goto fail_display; 693 } 694 695 if (drm->channel) { 696 ret = nouveau_channel_idle(drm->channel); 697 if (ret) 698 goto fail_display; 699 } 700 701 NV_DEBUG(drm, "suspending fence...\n"); 702 if (drm->fence && nouveau_fence(drm)->suspend) { 703 if (!nouveau_fence(drm)->suspend(drm)) { 704 ret = -ENOMEM; 705 goto fail_display; 706 } 707 } 708 709 NV_DEBUG(drm, "suspending object tree...\n"); 710 ret = nvif_client_suspend(&drm->master.base); 711 if (ret) 712 goto fail_client; 713 714 return 0; 715 716 fail_client: 717 if (drm->fence && nouveau_fence(drm)->resume) 718 nouveau_fence(drm)->resume(drm); 719 720 fail_display: 721 if (dev->mode_config.num_crtc) { 722 NV_DEBUG(drm, "resuming display...\n"); 723 nouveau_display_resume(dev, runtime); 724 } 725 return ret; 726 } 727 728 static int 729 nouveau_do_resume(struct drm_device *dev, bool runtime) 730 { 731 struct nouveau_drm *drm = nouveau_drm(dev); 732 733 NV_DEBUG(drm, "resuming object tree...\n"); 734 nvif_client_resume(&drm->master.base); 735 736 NV_DEBUG(drm, "resuming fence...\n"); 737 if (drm->fence && nouveau_fence(drm)->resume) 738 nouveau_fence(drm)->resume(drm); 739 740 nouveau_run_vbios_init(dev); 741 742 if (dev->mode_config.num_crtc) { 743 NV_DEBUG(drm, "resuming display...\n"); 744 nouveau_display_resume(dev, runtime); 745 NV_DEBUG(drm, "resuming console...\n"); 746 nouveau_fbcon_set_suspend(dev, 0); 747 } 748 749 nouveau_led_resume(dev); 750 751 return 0; 752 } 753 754 int 755 nouveau_pmops_suspend(struct device *dev) 756 { 757 struct pci_dev *pdev = to_pci_dev(dev); 758 struct drm_device *drm_dev = pci_get_drvdata(pdev); 759 int ret; 760 761 if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF || 762 drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF) 763 return 0; 764 765 ret = nouveau_do_suspend(drm_dev, false); 766 if (ret) 767 return ret; 768 769 pci_save_state(pdev); 770 pci_disable_device(pdev); 771 pci_set_power_state(pdev, PCI_D3hot); 772 udelay(200); 773 return 0; 774 } 775 776 int 777 nouveau_pmops_resume(struct device *dev) 778 { 779 struct pci_dev *pdev = to_pci_dev(dev); 780 struct drm_device *drm_dev = pci_get_drvdata(pdev); 781 int ret; 782 783 if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF || 784 drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF) 785 return 0; 786 787 pci_set_power_state(pdev, PCI_D0); 788 pci_restore_state(pdev); 789 ret = pci_enable_device(pdev); 790 if (ret) 791 return ret; 792 pci_set_master(pdev); 793 794 ret = nouveau_do_resume(drm_dev, false); 795 796 /* Monitors may have been connected / disconnected during suspend */ 797 schedule_work(&nouveau_drm(drm_dev)->hpd_work); 798 799 return ret; 800 } 801 802 static int 803 nouveau_pmops_freeze(struct device *dev) 804 { 805 struct pci_dev *pdev = to_pci_dev(dev); 806 struct drm_device *drm_dev = pci_get_drvdata(pdev); 807 return nouveau_do_suspend(drm_dev, false); 808 } 809 810 static int 811 nouveau_pmops_thaw(struct device *dev) 812 { 813 struct pci_dev *pdev = to_pci_dev(dev); 814 struct drm_device *drm_dev = pci_get_drvdata(pdev); 815 return nouveau_do_resume(drm_dev, false); 816 } 817 818 bool 819 nouveau_pmops_runtime(void) 820 { 821 if (nouveau_runtime_pm == -1) 822 return nouveau_is_optimus() || nouveau_is_v1_dsm(); 823 return nouveau_runtime_pm == 1; 824 } 825 826 static int 827 nouveau_pmops_runtime_suspend(struct device *dev) 828 { 829 struct pci_dev *pdev = to_pci_dev(dev); 830 struct drm_device *drm_dev = pci_get_drvdata(pdev); 831 int ret; 832 833 if (!nouveau_pmops_runtime()) { 834 pm_runtime_forbid(dev); 835 return -EBUSY; 836 } 837 838 drm_kms_helper_poll_disable(drm_dev); 839 nouveau_switcheroo_optimus_dsm(); 840 ret = nouveau_do_suspend(drm_dev, true); 841 pci_save_state(pdev); 842 pci_disable_device(pdev); 843 pci_ignore_hotplug(pdev); 844 pci_set_power_state(pdev, PCI_D3cold); 845 drm_dev->switch_power_state = DRM_SWITCH_POWER_DYNAMIC_OFF; 846 return ret; 847 } 848 849 static int 850 nouveau_pmops_runtime_resume(struct device *dev) 851 { 852 struct pci_dev *pdev = to_pci_dev(dev); 853 struct drm_device *drm_dev = pci_get_drvdata(pdev); 854 struct nvif_device *device = &nouveau_drm(drm_dev)->client.device; 855 int ret; 856 857 if (!nouveau_pmops_runtime()) { 858 pm_runtime_forbid(dev); 859 return -EBUSY; 860 } 861 862 pci_set_power_state(pdev, PCI_D0); 863 pci_restore_state(pdev); 864 ret = pci_enable_device(pdev); 865 if (ret) 866 return ret; 867 pci_set_master(pdev); 868 869 ret = nouveau_do_resume(drm_dev, true); 870 871 /* do magic */ 872 nvif_mask(&device->object, 0x088488, (1 << 25), (1 << 25)); 873 drm_dev->switch_power_state = DRM_SWITCH_POWER_ON; 874 875 /* Monitors may have been connected / disconnected during suspend */ 876 schedule_work(&nouveau_drm(drm_dev)->hpd_work); 877 878 return ret; 879 } 880 881 static int 882 nouveau_pmops_runtime_idle(struct device *dev) 883 { 884 if (!nouveau_pmops_runtime()) { 885 pm_runtime_forbid(dev); 886 return -EBUSY; 887 } 888 889 pm_runtime_mark_last_busy(dev); 890 pm_runtime_autosuspend(dev); 891 /* we don't want the main rpm_idle to call suspend - we want to autosuspend */ 892 return 1; 893 } 894 895 static int 896 nouveau_drm_open(struct drm_device *dev, struct drm_file *fpriv) 897 { 898 struct nouveau_drm *drm = nouveau_drm(dev); 899 struct nouveau_cli *cli; 900 char name[32], tmpname[TASK_COMM_LEN]; 901 int ret; 902 903 /* need to bring up power immediately if opening device */ 904 ret = pm_runtime_get_sync(dev->dev); 905 if (ret < 0 && ret != -EACCES) 906 return ret; 907 908 get_task_comm(tmpname, current); 909 snprintf(name, sizeof(name), "%s[%d]", tmpname, pid_nr(fpriv->pid)); 910 911 if (!(cli = kzalloc(sizeof(*cli), GFP_KERNEL))) { 912 ret = -ENOMEM; 913 goto done; 914 } 915 916 ret = nouveau_cli_init(drm, name, cli); 917 if (ret) 918 goto done; 919 920 cli->base.super = false; 921 922 fpriv->driver_priv = cli; 923 924 mutex_lock(&drm->client.mutex); 925 list_add(&cli->head, &drm->clients); 926 mutex_unlock(&drm->client.mutex); 927 928 done: 929 if (ret && cli) { 930 nouveau_cli_fini(cli); 931 kfree(cli); 932 } 933 934 pm_runtime_mark_last_busy(dev->dev); 935 pm_runtime_put_autosuspend(dev->dev); 936 return ret; 937 } 938 939 static void 940 nouveau_drm_postclose(struct drm_device *dev, struct drm_file *fpriv) 941 { 942 struct nouveau_cli *cli = nouveau_cli(fpriv); 943 struct nouveau_drm *drm = nouveau_drm(dev); 944 945 pm_runtime_get_sync(dev->dev); 946 947 mutex_lock(&cli->mutex); 948 if (cli->abi16) 949 nouveau_abi16_fini(cli->abi16); 950 mutex_unlock(&cli->mutex); 951 952 mutex_lock(&drm->client.mutex); 953 list_del(&cli->head); 954 mutex_unlock(&drm->client.mutex); 955 956 nouveau_cli_fini(cli); 957 kfree(cli); 958 pm_runtime_mark_last_busy(dev->dev); 959 pm_runtime_put_autosuspend(dev->dev); 960 } 961 962 static const struct drm_ioctl_desc 963 nouveau_ioctls[] = { 964 DRM_IOCTL_DEF_DRV(NOUVEAU_GETPARAM, nouveau_abi16_ioctl_getparam, DRM_AUTH|DRM_RENDER_ALLOW), 965 DRM_IOCTL_DEF_DRV(NOUVEAU_SETPARAM, nouveau_abi16_ioctl_setparam, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 966 DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_ALLOC, nouveau_abi16_ioctl_channel_alloc, DRM_AUTH|DRM_RENDER_ALLOW), 967 DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_FREE, nouveau_abi16_ioctl_channel_free, DRM_AUTH|DRM_RENDER_ALLOW), 968 DRM_IOCTL_DEF_DRV(NOUVEAU_GROBJ_ALLOC, nouveau_abi16_ioctl_grobj_alloc, DRM_AUTH|DRM_RENDER_ALLOW), 969 DRM_IOCTL_DEF_DRV(NOUVEAU_NOTIFIEROBJ_ALLOC, nouveau_abi16_ioctl_notifierobj_alloc, DRM_AUTH|DRM_RENDER_ALLOW), 970 DRM_IOCTL_DEF_DRV(NOUVEAU_GPUOBJ_FREE, nouveau_abi16_ioctl_gpuobj_free, DRM_AUTH|DRM_RENDER_ALLOW), 971 DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_NEW, nouveau_gem_ioctl_new, DRM_AUTH|DRM_RENDER_ALLOW), 972 DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_PUSHBUF, nouveau_gem_ioctl_pushbuf, DRM_AUTH|DRM_RENDER_ALLOW), 973 DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_PREP, nouveau_gem_ioctl_cpu_prep, DRM_AUTH|DRM_RENDER_ALLOW), 974 DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_FINI, nouveau_gem_ioctl_cpu_fini, DRM_AUTH|DRM_RENDER_ALLOW), 975 DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_INFO, nouveau_gem_ioctl_info, DRM_AUTH|DRM_RENDER_ALLOW), 976 }; 977 978 long 979 nouveau_drm_ioctl(struct file *file, unsigned int cmd, unsigned long arg) 980 { 981 struct drm_file *filp = file->private_data; 982 struct drm_device *dev = filp->minor->dev; 983 long ret; 984 985 ret = pm_runtime_get_sync(dev->dev); 986 if (ret < 0 && ret != -EACCES) 987 return ret; 988 989 switch (_IOC_NR(cmd) - DRM_COMMAND_BASE) { 990 case DRM_NOUVEAU_NVIF: 991 ret = usif_ioctl(filp, (void __user *)arg, _IOC_SIZE(cmd)); 992 break; 993 default: 994 ret = drm_ioctl(file, cmd, arg); 995 break; 996 } 997 998 pm_runtime_mark_last_busy(dev->dev); 999 pm_runtime_put_autosuspend(dev->dev); 1000 return ret; 1001 } 1002 1003 static const struct file_operations 1004 nouveau_driver_fops = { 1005 .owner = THIS_MODULE, 1006 .open = drm_open, 1007 .release = drm_release, 1008 .unlocked_ioctl = nouveau_drm_ioctl, 1009 .mmap = nouveau_ttm_mmap, 1010 .poll = drm_poll, 1011 .read = drm_read, 1012 #if defined(CONFIG_COMPAT) 1013 .compat_ioctl = nouveau_compat_ioctl, 1014 #endif 1015 .llseek = noop_llseek, 1016 }; 1017 1018 static struct drm_driver 1019 driver_stub = { 1020 .driver_features = 1021 DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME | DRIVER_RENDER | 1022 DRIVER_KMS_LEGACY_CONTEXT, 1023 1024 .load = nouveau_drm_load, 1025 .unload = nouveau_drm_unload, 1026 .open = nouveau_drm_open, 1027 .postclose = nouveau_drm_postclose, 1028 .lastclose = nouveau_vga_lastclose, 1029 1030 #if defined(CONFIG_DEBUG_FS) 1031 .debugfs_init = nouveau_drm_debugfs_init, 1032 #endif 1033 1034 .enable_vblank = nouveau_display_vblank_enable, 1035 .disable_vblank = nouveau_display_vblank_disable, 1036 .get_scanout_position = nouveau_display_scanoutpos, 1037 .get_vblank_timestamp = drm_calc_vbltimestamp_from_scanoutpos, 1038 1039 .ioctls = nouveau_ioctls, 1040 .num_ioctls = ARRAY_SIZE(nouveau_ioctls), 1041 .fops = &nouveau_driver_fops, 1042 1043 .prime_handle_to_fd = drm_gem_prime_handle_to_fd, 1044 .prime_fd_to_handle = drm_gem_prime_fd_to_handle, 1045 .gem_prime_export = drm_gem_prime_export, 1046 .gem_prime_import = drm_gem_prime_import, 1047 .gem_prime_pin = nouveau_gem_prime_pin, 1048 .gem_prime_res_obj = nouveau_gem_prime_res_obj, 1049 .gem_prime_unpin = nouveau_gem_prime_unpin, 1050 .gem_prime_get_sg_table = nouveau_gem_prime_get_sg_table, 1051 .gem_prime_import_sg_table = nouveau_gem_prime_import_sg_table, 1052 .gem_prime_vmap = nouveau_gem_prime_vmap, 1053 .gem_prime_vunmap = nouveau_gem_prime_vunmap, 1054 1055 .gem_free_object_unlocked = nouveau_gem_object_del, 1056 .gem_open_object = nouveau_gem_object_open, 1057 .gem_close_object = nouveau_gem_object_close, 1058 1059 .dumb_create = nouveau_display_dumb_create, 1060 .dumb_map_offset = nouveau_display_dumb_map_offset, 1061 1062 .name = DRIVER_NAME, 1063 .desc = DRIVER_DESC, 1064 #ifdef GIT_REVISION 1065 .date = GIT_REVISION, 1066 #else 1067 .date = DRIVER_DATE, 1068 #endif 1069 .major = DRIVER_MAJOR, 1070 .minor = DRIVER_MINOR, 1071 .patchlevel = DRIVER_PATCHLEVEL, 1072 }; 1073 1074 static struct pci_device_id 1075 nouveau_drm_pci_table[] = { 1076 { 1077 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID), 1078 .class = PCI_BASE_CLASS_DISPLAY << 16, 1079 .class_mask = 0xff << 16, 1080 }, 1081 { 1082 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA_SGS, PCI_ANY_ID), 1083 .class = PCI_BASE_CLASS_DISPLAY << 16, 1084 .class_mask = 0xff << 16, 1085 }, 1086 {} 1087 }; 1088 1089 static void nouveau_display_options(void) 1090 { 1091 DRM_DEBUG_DRIVER("Loading Nouveau with parameters:\n"); 1092 1093 DRM_DEBUG_DRIVER("... tv_disable : %d\n", nouveau_tv_disable); 1094 DRM_DEBUG_DRIVER("... ignorelid : %d\n", nouveau_ignorelid); 1095 DRM_DEBUG_DRIVER("... duallink : %d\n", nouveau_duallink); 1096 DRM_DEBUG_DRIVER("... nofbaccel : %d\n", nouveau_nofbaccel); 1097 DRM_DEBUG_DRIVER("... config : %s\n", nouveau_config); 1098 DRM_DEBUG_DRIVER("... debug : %s\n", nouveau_debug); 1099 DRM_DEBUG_DRIVER("... noaccel : %d\n", nouveau_noaccel); 1100 DRM_DEBUG_DRIVER("... modeset : %d\n", nouveau_modeset); 1101 DRM_DEBUG_DRIVER("... runpm : %d\n", nouveau_runtime_pm); 1102 DRM_DEBUG_DRIVER("... vram_pushbuf : %d\n", nouveau_vram_pushbuf); 1103 DRM_DEBUG_DRIVER("... hdmimhz : %d\n", nouveau_hdmimhz); 1104 } 1105 1106 static const struct dev_pm_ops nouveau_pm_ops = { 1107 .suspend = nouveau_pmops_suspend, 1108 .resume = nouveau_pmops_resume, 1109 .freeze = nouveau_pmops_freeze, 1110 .thaw = nouveau_pmops_thaw, 1111 .poweroff = nouveau_pmops_freeze, 1112 .restore = nouveau_pmops_resume, 1113 .runtime_suspend = nouveau_pmops_runtime_suspend, 1114 .runtime_resume = nouveau_pmops_runtime_resume, 1115 .runtime_idle = nouveau_pmops_runtime_idle, 1116 }; 1117 1118 static struct pci_driver 1119 nouveau_drm_pci_driver = { 1120 .name = "nouveau", 1121 .id_table = nouveau_drm_pci_table, 1122 .probe = nouveau_drm_probe, 1123 .remove = nouveau_drm_remove, 1124 .driver.pm = &nouveau_pm_ops, 1125 }; 1126 1127 struct drm_device * 1128 nouveau_platform_device_create(const struct nvkm_device_tegra_func *func, 1129 struct platform_device *pdev, 1130 struct nvkm_device **pdevice) 1131 { 1132 struct drm_device *drm; 1133 int err; 1134 1135 err = nvkm_device_tegra_new(func, pdev, nouveau_config, nouveau_debug, 1136 true, true, ~0ULL, pdevice); 1137 if (err) 1138 goto err_free; 1139 1140 drm = drm_dev_alloc(&driver_platform, &pdev->dev); 1141 if (IS_ERR(drm)) { 1142 err = PTR_ERR(drm); 1143 goto err_free; 1144 } 1145 1146 platform_set_drvdata(pdev, drm); 1147 1148 return drm; 1149 1150 err_free: 1151 nvkm_device_del(pdevice); 1152 1153 return ERR_PTR(err); 1154 } 1155 1156 static int __init 1157 nouveau_drm_init(void) 1158 { 1159 driver_pci = driver_stub; 1160 driver_platform = driver_stub; 1161 1162 nouveau_display_options(); 1163 1164 if (nouveau_modeset == -1) { 1165 if (vgacon_text_force()) 1166 nouveau_modeset = 0; 1167 } 1168 1169 if (!nouveau_modeset) 1170 return 0; 1171 1172 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER 1173 platform_driver_register(&nouveau_platform_driver); 1174 #endif 1175 1176 nouveau_register_dsm_handler(); 1177 nouveau_backlight_ctor(); 1178 1179 #ifdef CONFIG_PCI 1180 return pci_register_driver(&nouveau_drm_pci_driver); 1181 #else 1182 return 0; 1183 #endif 1184 } 1185 1186 static void __exit 1187 nouveau_drm_exit(void) 1188 { 1189 if (!nouveau_modeset) 1190 return; 1191 1192 #ifdef CONFIG_PCI 1193 pci_unregister_driver(&nouveau_drm_pci_driver); 1194 #endif 1195 nouveau_backlight_dtor(); 1196 nouveau_unregister_dsm_handler(); 1197 1198 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER 1199 platform_driver_unregister(&nouveau_platform_driver); 1200 #endif 1201 } 1202 1203 module_init(nouveau_drm_init); 1204 module_exit(nouveau_drm_exit); 1205 1206 MODULE_DEVICE_TABLE(pci, nouveau_drm_pci_table); 1207 MODULE_AUTHOR(DRIVER_AUTHOR); 1208 MODULE_DESCRIPTION(DRIVER_DESC); 1209 MODULE_LICENSE("GPL and additional rights"); 1210