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 42 #include <nvif/class.h> 43 #include <nvif/cl0002.h> 44 #include <nvif/cla06f.h> 45 #include <nvif/if0004.h> 46 47 #include "nouveau_drv.h" 48 #include "nouveau_dma.h" 49 #include "nouveau_ttm.h" 50 #include "nouveau_gem.h" 51 #include "nouveau_vga.h" 52 #include "nouveau_led.h" 53 #include "nouveau_hwmon.h" 54 #include "nouveau_acpi.h" 55 #include "nouveau_bios.h" 56 #include "nouveau_ioctl.h" 57 #include "nouveau_abi16.h" 58 #include "nouveau_fbcon.h" 59 #include "nouveau_fence.h" 60 #include "nouveau_debugfs.h" 61 #include "nouveau_usif.h" 62 #include "nouveau_connector.h" 63 #include "nouveau_platform.h" 64 65 MODULE_PARM_DESC(config, "option string to pass to driver core"); 66 static char *nouveau_config; 67 module_param_named(config, nouveau_config, charp, 0400); 68 69 MODULE_PARM_DESC(debug, "debug string to pass to driver core"); 70 static char *nouveau_debug; 71 module_param_named(debug, nouveau_debug, charp, 0400); 72 73 MODULE_PARM_DESC(noaccel, "disable kernel/abi16 acceleration"); 74 static int nouveau_noaccel = 0; 75 module_param_named(noaccel, nouveau_noaccel, int, 0400); 76 77 MODULE_PARM_DESC(modeset, "enable driver (default: auto, " 78 "0 = disabled, 1 = enabled, 2 = headless)"); 79 int nouveau_modeset = -1; 80 module_param_named(modeset, nouveau_modeset, int, 0400); 81 82 MODULE_PARM_DESC(runpm, "disable (0), force enable (1), optimus only default (-1)"); 83 static int nouveau_runtime_pm = -1; 84 module_param_named(runpm, nouveau_runtime_pm, int, 0400); 85 86 static struct drm_driver driver_stub; 87 static struct drm_driver driver_pci; 88 static struct drm_driver driver_platform; 89 90 static u64 91 nouveau_pci_name(struct pci_dev *pdev) 92 { 93 u64 name = (u64)pci_domain_nr(pdev->bus) << 32; 94 name |= pdev->bus->number << 16; 95 name |= PCI_SLOT(pdev->devfn) << 8; 96 return name | PCI_FUNC(pdev->devfn); 97 } 98 99 static u64 100 nouveau_platform_name(struct platform_device *platformdev) 101 { 102 return platformdev->id; 103 } 104 105 static u64 106 nouveau_name(struct drm_device *dev) 107 { 108 if (dev->pdev) 109 return nouveau_pci_name(dev->pdev); 110 else 111 return nouveau_platform_name(to_platform_device(dev->dev)); 112 } 113 114 static inline bool 115 nouveau_cli_work_ready(struct dma_fence *fence, bool wait) 116 { 117 if (!dma_fence_is_signaled(fence)) { 118 if (!wait) 119 return false; 120 WARN_ON(dma_fence_wait_timeout(fence, false, 2 * HZ) <= 0); 121 } 122 dma_fence_put(fence); 123 return true; 124 } 125 126 static void 127 nouveau_cli_work_flush(struct nouveau_cli *cli, bool wait) 128 { 129 struct nouveau_cli_work *work, *wtmp; 130 mutex_lock(&cli->lock); 131 list_for_each_entry_safe(work, wtmp, &cli->worker, head) { 132 if (!work->fence || nouveau_cli_work_ready(work->fence, wait)) { 133 list_del(&work->head); 134 work->func(work); 135 } 136 } 137 mutex_unlock(&cli->lock); 138 } 139 140 static void 141 nouveau_cli_work_fence(struct dma_fence *fence, struct dma_fence_cb *cb) 142 { 143 struct nouveau_cli_work *work = container_of(cb, typeof(*work), cb); 144 schedule_work(&work->cli->work); 145 } 146 147 void 148 nouveau_cli_work_queue(struct nouveau_cli *cli, struct dma_fence *fence, 149 struct nouveau_cli_work *work) 150 { 151 work->fence = dma_fence_get(fence); 152 work->cli = cli; 153 mutex_lock(&cli->lock); 154 list_add_tail(&work->head, &cli->worker); 155 if (dma_fence_add_callback(fence, &work->cb, nouveau_cli_work_fence)) 156 nouveau_cli_work_fence(fence, &work->cb); 157 mutex_unlock(&cli->lock); 158 } 159 160 static void 161 nouveau_cli_work(struct work_struct *w) 162 { 163 struct nouveau_cli *cli = container_of(w, typeof(*cli), work); 164 nouveau_cli_work_flush(cli, false); 165 } 166 167 static void 168 nouveau_cli_fini(struct nouveau_cli *cli) 169 { 170 nouveau_cli_work_flush(cli, true); 171 usif_client_fini(cli); 172 nouveau_vmm_fini(&cli->vmm); 173 nvif_mmu_fini(&cli->mmu); 174 nvif_device_fini(&cli->device); 175 mutex_lock(&cli->drm->master.lock); 176 nvif_client_fini(&cli->base); 177 mutex_unlock(&cli->drm->master.lock); 178 } 179 180 static int 181 nouveau_cli_init(struct nouveau_drm *drm, const char *sname, 182 struct nouveau_cli *cli) 183 { 184 static const struct nvif_mclass 185 mems[] = { 186 { NVIF_CLASS_MEM_GF100, -1 }, 187 { NVIF_CLASS_MEM_NV50 , -1 }, 188 { NVIF_CLASS_MEM_NV04 , -1 }, 189 {} 190 }; 191 static const struct nvif_mclass 192 mmus[] = { 193 { NVIF_CLASS_MMU_GF100, -1 }, 194 { NVIF_CLASS_MMU_NV50 , -1 }, 195 { NVIF_CLASS_MMU_NV04 , -1 }, 196 {} 197 }; 198 static const struct nvif_mclass 199 vmms[] = { 200 { NVIF_CLASS_VMM_GP100, -1 }, 201 { NVIF_CLASS_VMM_GM200, -1 }, 202 { NVIF_CLASS_VMM_GF100, -1 }, 203 { NVIF_CLASS_VMM_NV50 , -1 }, 204 { NVIF_CLASS_VMM_NV04 , -1 }, 205 {} 206 }; 207 u64 device = nouveau_name(drm->dev); 208 int ret; 209 210 snprintf(cli->name, sizeof(cli->name), "%s", sname); 211 cli->drm = drm; 212 mutex_init(&cli->mutex); 213 usif_client_init(cli); 214 215 INIT_WORK(&cli->work, nouveau_cli_work); 216 INIT_LIST_HEAD(&cli->worker); 217 mutex_init(&cli->lock); 218 219 if (cli == &drm->master) { 220 ret = nvif_driver_init(NULL, nouveau_config, nouveau_debug, 221 cli->name, device, &cli->base); 222 } else { 223 mutex_lock(&drm->master.lock); 224 ret = nvif_client_init(&drm->master.base, cli->name, device, 225 &cli->base); 226 mutex_unlock(&drm->master.lock); 227 } 228 if (ret) { 229 NV_ERROR(drm, "Client allocation failed: %d\n", ret); 230 goto done; 231 } 232 233 ret = nvif_device_init(&cli->base.object, 0, NV_DEVICE, 234 &(struct nv_device_v0) { 235 .device = ~0, 236 }, sizeof(struct nv_device_v0), 237 &cli->device); 238 if (ret) { 239 NV_ERROR(drm, "Device allocation failed: %d\n", ret); 240 goto done; 241 } 242 243 ret = nvif_mclass(&cli->device.object, mmus); 244 if (ret < 0) { 245 NV_ERROR(drm, "No supported MMU class\n"); 246 goto done; 247 } 248 249 ret = nvif_mmu_init(&cli->device.object, mmus[ret].oclass, &cli->mmu); 250 if (ret) { 251 NV_ERROR(drm, "MMU allocation failed: %d\n", ret); 252 goto done; 253 } 254 255 ret = nvif_mclass(&cli->mmu.object, vmms); 256 if (ret < 0) { 257 NV_ERROR(drm, "No supported VMM class\n"); 258 goto done; 259 } 260 261 ret = nouveau_vmm_init(cli, vmms[ret].oclass, &cli->vmm); 262 if (ret) { 263 NV_ERROR(drm, "VMM allocation failed: %d\n", ret); 264 goto done; 265 } 266 267 ret = nvif_mclass(&cli->mmu.object, mems); 268 if (ret < 0) { 269 NV_ERROR(drm, "No supported MEM class\n"); 270 goto done; 271 } 272 273 cli->mem = &mems[ret]; 274 return 0; 275 done: 276 if (ret) 277 nouveau_cli_fini(cli); 278 return ret; 279 } 280 281 static void 282 nouveau_accel_fini(struct nouveau_drm *drm) 283 { 284 nouveau_channel_idle(drm->channel); 285 nvif_object_fini(&drm->ntfy); 286 nvkm_gpuobj_del(&drm->notify); 287 nvif_notify_fini(&drm->flip); 288 nvif_object_fini(&drm->nvsw); 289 nouveau_channel_del(&drm->channel); 290 291 nouveau_channel_idle(drm->cechan); 292 nvif_object_fini(&drm->ttm.copy); 293 nouveau_channel_del(&drm->cechan); 294 295 if (drm->fence) 296 nouveau_fence(drm)->dtor(drm); 297 } 298 299 static void 300 nouveau_accel_init(struct nouveau_drm *drm) 301 { 302 struct nvif_device *device = &drm->client.device; 303 struct nvif_sclass *sclass; 304 u32 arg0, arg1; 305 int ret, i, n; 306 307 if (nouveau_noaccel) 308 return; 309 310 /* initialise synchronisation routines */ 311 /*XXX: this is crap, but the fence/channel stuff is a little 312 * backwards in some places. this will be fixed. 313 */ 314 ret = n = nvif_object_sclass_get(&device->object, &sclass); 315 if (ret < 0) 316 return; 317 318 for (ret = -ENOSYS, i = 0; i < n; i++) { 319 switch (sclass[i].oclass) { 320 case NV03_CHANNEL_DMA: 321 ret = nv04_fence_create(drm); 322 break; 323 case NV10_CHANNEL_DMA: 324 ret = nv10_fence_create(drm); 325 break; 326 case NV17_CHANNEL_DMA: 327 case NV40_CHANNEL_DMA: 328 ret = nv17_fence_create(drm); 329 break; 330 case NV50_CHANNEL_GPFIFO: 331 ret = nv50_fence_create(drm); 332 break; 333 case G82_CHANNEL_GPFIFO: 334 ret = nv84_fence_create(drm); 335 break; 336 case FERMI_CHANNEL_GPFIFO: 337 case KEPLER_CHANNEL_GPFIFO_A: 338 case KEPLER_CHANNEL_GPFIFO_B: 339 case MAXWELL_CHANNEL_GPFIFO_A: 340 case PASCAL_CHANNEL_GPFIFO_A: 341 ret = nvc0_fence_create(drm); 342 break; 343 default: 344 break; 345 } 346 } 347 348 nvif_object_sclass_put(&sclass); 349 if (ret) { 350 NV_ERROR(drm, "failed to initialise sync subsystem, %d\n", ret); 351 nouveau_accel_fini(drm); 352 return; 353 } 354 355 if (device->info.family >= NV_DEVICE_INFO_V0_KEPLER) { 356 ret = nouveau_channel_new(drm, &drm->client.device, 357 NVA06F_V0_ENGINE_CE0 | 358 NVA06F_V0_ENGINE_CE1, 359 0, &drm->cechan); 360 if (ret) 361 NV_ERROR(drm, "failed to create ce channel, %d\n", ret); 362 363 arg0 = NVA06F_V0_ENGINE_GR; 364 arg1 = 1; 365 } else 366 if (device->info.chipset >= 0xa3 && 367 device->info.chipset != 0xaa && 368 device->info.chipset != 0xac) { 369 ret = nouveau_channel_new(drm, &drm->client.device, 370 NvDmaFB, NvDmaTT, &drm->cechan); 371 if (ret) 372 NV_ERROR(drm, "failed to create ce channel, %d\n", ret); 373 374 arg0 = NvDmaFB; 375 arg1 = NvDmaTT; 376 } else { 377 arg0 = NvDmaFB; 378 arg1 = NvDmaTT; 379 } 380 381 ret = nouveau_channel_new(drm, &drm->client.device, 382 arg0, arg1, &drm->channel); 383 if (ret) { 384 NV_ERROR(drm, "failed to create kernel channel, %d\n", ret); 385 nouveau_accel_fini(drm); 386 return; 387 } 388 389 ret = nvif_object_init(&drm->channel->user, NVDRM_NVSW, 390 nouveau_abi16_swclass(drm), NULL, 0, &drm->nvsw); 391 if (ret == 0) { 392 ret = RING_SPACE(drm->channel, 2); 393 if (ret == 0) { 394 if (device->info.family < NV_DEVICE_INFO_V0_FERMI) { 395 BEGIN_NV04(drm->channel, NvSubSw, 0, 1); 396 OUT_RING (drm->channel, NVDRM_NVSW); 397 } else 398 if (device->info.family < NV_DEVICE_INFO_V0_KEPLER) { 399 BEGIN_NVC0(drm->channel, FermiSw, 0, 1); 400 OUT_RING (drm->channel, 0x001f0000); 401 } 402 } 403 404 ret = nvif_notify_init(&drm->nvsw, nouveau_flip_complete, 405 false, NV04_NVSW_NTFY_UEVENT, 406 NULL, 0, 0, &drm->flip); 407 if (ret == 0) 408 ret = nvif_notify_get(&drm->flip); 409 if (ret) { 410 nouveau_accel_fini(drm); 411 return; 412 } 413 } 414 415 if (ret) { 416 NV_ERROR(drm, "failed to allocate software object, %d\n", ret); 417 nouveau_accel_fini(drm); 418 return; 419 } 420 421 if (device->info.family < NV_DEVICE_INFO_V0_FERMI) { 422 ret = nvkm_gpuobj_new(nvxx_device(&drm->client.device), 32, 0, 423 false, NULL, &drm->notify); 424 if (ret) { 425 NV_ERROR(drm, "failed to allocate notifier, %d\n", ret); 426 nouveau_accel_fini(drm); 427 return; 428 } 429 430 ret = nvif_object_init(&drm->channel->user, NvNotify0, 431 NV_DMA_IN_MEMORY, 432 &(struct nv_dma_v0) { 433 .target = NV_DMA_V0_TARGET_VRAM, 434 .access = NV_DMA_V0_ACCESS_RDWR, 435 .start = drm->notify->addr, 436 .limit = drm->notify->addr + 31 437 }, sizeof(struct nv_dma_v0), 438 &drm->ntfy); 439 if (ret) { 440 nouveau_accel_fini(drm); 441 return; 442 } 443 } 444 445 446 nouveau_bo_move_init(drm); 447 } 448 449 static int nouveau_drm_probe(struct pci_dev *pdev, 450 const struct pci_device_id *pent) 451 { 452 struct nvkm_device *device; 453 struct apertures_struct *aper; 454 bool boot = false; 455 int ret; 456 457 if (vga_switcheroo_client_probe_defer(pdev)) 458 return -EPROBE_DEFER; 459 460 /* We need to check that the chipset is supported before booting 461 * fbdev off the hardware, as there's no way to put it back. 462 */ 463 ret = nvkm_device_pci_new(pdev, NULL, "error", true, false, 0, &device); 464 if (ret) 465 return ret; 466 467 nvkm_device_del(&device); 468 469 /* Remove conflicting drivers (vesafb, efifb etc). */ 470 aper = alloc_apertures(3); 471 if (!aper) 472 return -ENOMEM; 473 474 aper->ranges[0].base = pci_resource_start(pdev, 1); 475 aper->ranges[0].size = pci_resource_len(pdev, 1); 476 aper->count = 1; 477 478 if (pci_resource_len(pdev, 2)) { 479 aper->ranges[aper->count].base = pci_resource_start(pdev, 2); 480 aper->ranges[aper->count].size = pci_resource_len(pdev, 2); 481 aper->count++; 482 } 483 484 if (pci_resource_len(pdev, 3)) { 485 aper->ranges[aper->count].base = pci_resource_start(pdev, 3); 486 aper->ranges[aper->count].size = pci_resource_len(pdev, 3); 487 aper->count++; 488 } 489 490 #ifdef CONFIG_X86 491 boot = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW; 492 #endif 493 if (nouveau_modeset != 2) 494 drm_fb_helper_remove_conflicting_framebuffers(aper, "nouveaufb", boot); 495 kfree(aper); 496 497 ret = nvkm_device_pci_new(pdev, nouveau_config, nouveau_debug, 498 true, true, ~0ULL, &device); 499 if (ret) 500 return ret; 501 502 pci_set_master(pdev); 503 504 ret = drm_get_pci_dev(pdev, pent, &driver_pci); 505 if (ret) { 506 nvkm_device_del(&device); 507 return ret; 508 } 509 510 return 0; 511 } 512 513 #define PCI_CLASS_MULTIMEDIA_HD_AUDIO 0x0403 514 515 static void 516 nouveau_get_hdmi_dev(struct nouveau_drm *drm) 517 { 518 struct pci_dev *pdev = drm->dev->pdev; 519 520 if (!pdev) { 521 NV_DEBUG(drm, "not a PCI device; no HDMI\n"); 522 drm->hdmi_device = NULL; 523 return; 524 } 525 526 /* subfunction one is a hdmi audio device? */ 527 drm->hdmi_device = pci_get_domain_bus_and_slot(pci_domain_nr(pdev->bus), 528 (unsigned int)pdev->bus->number, 529 PCI_DEVFN(PCI_SLOT(pdev->devfn), 1)); 530 531 if (!drm->hdmi_device) { 532 NV_DEBUG(drm, "hdmi device not found %d %d %d\n", pdev->bus->number, PCI_SLOT(pdev->devfn), 1); 533 return; 534 } 535 536 if ((drm->hdmi_device->class >> 8) != PCI_CLASS_MULTIMEDIA_HD_AUDIO) { 537 NV_DEBUG(drm, "possible hdmi device not audio %d\n", drm->hdmi_device->class); 538 pci_dev_put(drm->hdmi_device); 539 drm->hdmi_device = NULL; 540 return; 541 } 542 } 543 544 static int 545 nouveau_drm_load(struct drm_device *dev, unsigned long flags) 546 { 547 struct nouveau_drm *drm; 548 int ret; 549 550 if (!(drm = kzalloc(sizeof(*drm), GFP_KERNEL))) 551 return -ENOMEM; 552 dev->dev_private = drm; 553 drm->dev = dev; 554 555 ret = nouveau_cli_init(drm, "DRM-master", &drm->master); 556 if (ret) 557 return ret; 558 559 ret = nouveau_cli_init(drm, "DRM", &drm->client); 560 if (ret) 561 return ret; 562 563 dev->irq_enabled = true; 564 565 nvxx_client(&drm->client.base)->debug = 566 nvkm_dbgopt(nouveau_debug, "DRM"); 567 568 INIT_LIST_HEAD(&drm->clients); 569 spin_lock_init(&drm->tile.lock); 570 571 nouveau_get_hdmi_dev(drm); 572 573 /* workaround an odd issue on nvc1 by disabling the device's 574 * nosnoop capability. hopefully won't cause issues until a 575 * better fix is found - assuming there is one... 576 */ 577 if (drm->client.device.info.chipset == 0xc1) 578 nvif_mask(&drm->client.device.object, 0x00088080, 0x00000800, 0x00000000); 579 580 nouveau_vga_init(drm); 581 582 ret = nouveau_ttm_init(drm); 583 if (ret) 584 goto fail_ttm; 585 586 ret = nouveau_bios_init(dev); 587 if (ret) 588 goto fail_bios; 589 590 ret = nouveau_display_create(dev); 591 if (ret) 592 goto fail_dispctor; 593 594 if (dev->mode_config.num_crtc) { 595 ret = nouveau_display_init(dev); 596 if (ret) 597 goto fail_dispinit; 598 } 599 600 nouveau_debugfs_init(drm); 601 nouveau_hwmon_init(dev); 602 nouveau_accel_init(drm); 603 nouveau_fbcon_init(dev); 604 nouveau_led_init(dev); 605 606 if (nouveau_pmops_runtime()) { 607 pm_runtime_use_autosuspend(dev->dev); 608 pm_runtime_set_autosuspend_delay(dev->dev, 5000); 609 pm_runtime_set_active(dev->dev); 610 pm_runtime_allow(dev->dev); 611 pm_runtime_mark_last_busy(dev->dev); 612 pm_runtime_put(dev->dev); 613 } else { 614 /* enable polling for external displays */ 615 drm_kms_helper_poll_enable(dev); 616 } 617 return 0; 618 619 fail_dispinit: 620 nouveau_display_destroy(dev); 621 fail_dispctor: 622 nouveau_bios_takedown(dev); 623 fail_bios: 624 nouveau_ttm_fini(drm); 625 fail_ttm: 626 nouveau_vga_fini(drm); 627 nouveau_cli_fini(&drm->client); 628 nouveau_cli_fini(&drm->master); 629 kfree(drm); 630 return ret; 631 } 632 633 static void 634 nouveau_drm_unload(struct drm_device *dev) 635 { 636 struct nouveau_drm *drm = nouveau_drm(dev); 637 638 if (nouveau_pmops_runtime()) { 639 pm_runtime_get_sync(dev->dev); 640 pm_runtime_forbid(dev->dev); 641 } 642 643 nouveau_led_fini(dev); 644 nouveau_fbcon_fini(dev); 645 nouveau_accel_fini(drm); 646 nouveau_hwmon_fini(dev); 647 nouveau_debugfs_fini(drm); 648 649 if (dev->mode_config.num_crtc) 650 nouveau_display_fini(dev, false); 651 nouveau_display_destroy(dev); 652 653 nouveau_bios_takedown(dev); 654 655 nouveau_ttm_fini(drm); 656 nouveau_vga_fini(drm); 657 658 if (drm->hdmi_device) 659 pci_dev_put(drm->hdmi_device); 660 nouveau_cli_fini(&drm->client); 661 nouveau_cli_fini(&drm->master); 662 kfree(drm); 663 } 664 665 void 666 nouveau_drm_device_remove(struct drm_device *dev) 667 { 668 struct nouveau_drm *drm = nouveau_drm(dev); 669 struct nvkm_client *client; 670 struct nvkm_device *device; 671 672 dev->irq_enabled = false; 673 client = nvxx_client(&drm->client.base); 674 device = nvkm_device_find(client->device); 675 drm_put_dev(dev); 676 677 nvkm_device_del(&device); 678 } 679 680 static void 681 nouveau_drm_remove(struct pci_dev *pdev) 682 { 683 struct drm_device *dev = pci_get_drvdata(pdev); 684 685 nouveau_drm_device_remove(dev); 686 } 687 688 static int 689 nouveau_do_suspend(struct drm_device *dev, bool runtime) 690 { 691 struct nouveau_drm *drm = nouveau_drm(dev); 692 int ret; 693 694 nouveau_led_suspend(dev); 695 696 if (dev->mode_config.num_crtc) { 697 NV_DEBUG(drm, "suspending console...\n"); 698 nouveau_fbcon_set_suspend(dev, 1); 699 NV_DEBUG(drm, "suspending display...\n"); 700 ret = nouveau_display_suspend(dev, runtime); 701 if (ret) 702 return ret; 703 } 704 705 NV_DEBUG(drm, "evicting buffers...\n"); 706 ttm_bo_evict_mm(&drm->ttm.bdev, TTM_PL_VRAM); 707 708 NV_DEBUG(drm, "waiting for kernel channels to go idle...\n"); 709 if (drm->cechan) { 710 ret = nouveau_channel_idle(drm->cechan); 711 if (ret) 712 goto fail_display; 713 } 714 715 if (drm->channel) { 716 ret = nouveau_channel_idle(drm->channel); 717 if (ret) 718 goto fail_display; 719 } 720 721 NV_DEBUG(drm, "suspending fence...\n"); 722 if (drm->fence && nouveau_fence(drm)->suspend) { 723 if (!nouveau_fence(drm)->suspend(drm)) { 724 ret = -ENOMEM; 725 goto fail_display; 726 } 727 } 728 729 NV_DEBUG(drm, "suspending object tree...\n"); 730 ret = nvif_client_suspend(&drm->master.base); 731 if (ret) 732 goto fail_client; 733 734 return 0; 735 736 fail_client: 737 if (drm->fence && nouveau_fence(drm)->resume) 738 nouveau_fence(drm)->resume(drm); 739 740 fail_display: 741 if (dev->mode_config.num_crtc) { 742 NV_DEBUG(drm, "resuming display...\n"); 743 nouveau_display_resume(dev, runtime); 744 } 745 return ret; 746 } 747 748 static int 749 nouveau_do_resume(struct drm_device *dev, bool runtime) 750 { 751 struct nouveau_drm *drm = nouveau_drm(dev); 752 753 NV_DEBUG(drm, "resuming object tree...\n"); 754 nvif_client_resume(&drm->master.base); 755 756 NV_DEBUG(drm, "resuming fence...\n"); 757 if (drm->fence && nouveau_fence(drm)->resume) 758 nouveau_fence(drm)->resume(drm); 759 760 nouveau_run_vbios_init(dev); 761 762 if (dev->mode_config.num_crtc) { 763 NV_DEBUG(drm, "resuming display...\n"); 764 nouveau_display_resume(dev, runtime); 765 NV_DEBUG(drm, "resuming console...\n"); 766 nouveau_fbcon_set_suspend(dev, 0); 767 } 768 769 nouveau_led_resume(dev); 770 771 return 0; 772 } 773 774 int 775 nouveau_pmops_suspend(struct device *dev) 776 { 777 struct pci_dev *pdev = to_pci_dev(dev); 778 struct drm_device *drm_dev = pci_get_drvdata(pdev); 779 int ret; 780 781 if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF || 782 drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF) 783 return 0; 784 785 ret = nouveau_do_suspend(drm_dev, false); 786 if (ret) 787 return ret; 788 789 pci_save_state(pdev); 790 pci_disable_device(pdev); 791 pci_set_power_state(pdev, PCI_D3hot); 792 udelay(200); 793 return 0; 794 } 795 796 int 797 nouveau_pmops_resume(struct device *dev) 798 { 799 struct pci_dev *pdev = to_pci_dev(dev); 800 struct drm_device *drm_dev = pci_get_drvdata(pdev); 801 int ret; 802 803 if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF || 804 drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF) 805 return 0; 806 807 pci_set_power_state(pdev, PCI_D0); 808 pci_restore_state(pdev); 809 ret = pci_enable_device(pdev); 810 if (ret) 811 return ret; 812 pci_set_master(pdev); 813 814 ret = nouveau_do_resume(drm_dev, false); 815 816 /* Monitors may have been connected / disconnected during suspend */ 817 schedule_work(&nouveau_drm(drm_dev)->hpd_work); 818 819 return ret; 820 } 821 822 static int 823 nouveau_pmops_freeze(struct device *dev) 824 { 825 struct pci_dev *pdev = to_pci_dev(dev); 826 struct drm_device *drm_dev = pci_get_drvdata(pdev); 827 return nouveau_do_suspend(drm_dev, false); 828 } 829 830 static int 831 nouveau_pmops_thaw(struct device *dev) 832 { 833 struct pci_dev *pdev = to_pci_dev(dev); 834 struct drm_device *drm_dev = pci_get_drvdata(pdev); 835 return nouveau_do_resume(drm_dev, false); 836 } 837 838 bool 839 nouveau_pmops_runtime(void) 840 { 841 if (nouveau_runtime_pm == -1) 842 return nouveau_is_optimus() || nouveau_is_v1_dsm(); 843 return nouveau_runtime_pm == 1; 844 } 845 846 static int 847 nouveau_pmops_runtime_suspend(struct device *dev) 848 { 849 struct pci_dev *pdev = to_pci_dev(dev); 850 struct drm_device *drm_dev = pci_get_drvdata(pdev); 851 int ret; 852 853 if (!nouveau_pmops_runtime()) { 854 pm_runtime_forbid(dev); 855 return -EBUSY; 856 } 857 858 drm_kms_helper_poll_disable(drm_dev); 859 vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_OFF); 860 nouveau_switcheroo_optimus_dsm(); 861 ret = nouveau_do_suspend(drm_dev, true); 862 pci_save_state(pdev); 863 pci_disable_device(pdev); 864 pci_ignore_hotplug(pdev); 865 pci_set_power_state(pdev, PCI_D3cold); 866 drm_dev->switch_power_state = DRM_SWITCH_POWER_DYNAMIC_OFF; 867 return ret; 868 } 869 870 static int 871 nouveau_pmops_runtime_resume(struct device *dev) 872 { 873 struct pci_dev *pdev = to_pci_dev(dev); 874 struct drm_device *drm_dev = pci_get_drvdata(pdev); 875 struct nvif_device *device = &nouveau_drm(drm_dev)->client.device; 876 int ret; 877 878 if (!nouveau_pmops_runtime()) { 879 pm_runtime_forbid(dev); 880 return -EBUSY; 881 } 882 883 pci_set_power_state(pdev, PCI_D0); 884 pci_restore_state(pdev); 885 ret = pci_enable_device(pdev); 886 if (ret) 887 return ret; 888 pci_set_master(pdev); 889 890 ret = nouveau_do_resume(drm_dev, true); 891 892 /* do magic */ 893 nvif_mask(&device->object, 0x088488, (1 << 25), (1 << 25)); 894 vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_ON); 895 drm_dev->switch_power_state = DRM_SWITCH_POWER_ON; 896 897 /* Monitors may have been connected / disconnected during suspend */ 898 schedule_work(&nouveau_drm(drm_dev)->hpd_work); 899 900 return ret; 901 } 902 903 static int 904 nouveau_pmops_runtime_idle(struct device *dev) 905 { 906 struct pci_dev *pdev = to_pci_dev(dev); 907 struct drm_device *drm_dev = pci_get_drvdata(pdev); 908 struct nouveau_drm *drm = nouveau_drm(drm_dev); 909 struct drm_crtc *crtc; 910 911 if (!nouveau_pmops_runtime()) { 912 pm_runtime_forbid(dev); 913 return -EBUSY; 914 } 915 916 /* if we have a hdmi audio device - make sure it has a driver loaded */ 917 if (drm->hdmi_device) { 918 if (!drm->hdmi_device->driver) { 919 DRM_DEBUG_DRIVER("failing to power off - no HDMI audio driver loaded\n"); 920 pm_runtime_mark_last_busy(dev); 921 return -EBUSY; 922 } 923 } 924 925 list_for_each_entry(crtc, &drm->dev->mode_config.crtc_list, head) { 926 if (crtc->enabled) { 927 DRM_DEBUG_DRIVER("failing to power off - crtc active\n"); 928 return -EBUSY; 929 } 930 } 931 pm_runtime_mark_last_busy(dev); 932 pm_runtime_autosuspend(dev); 933 /* we don't want the main rpm_idle to call suspend - we want to autosuspend */ 934 return 1; 935 } 936 937 static int 938 nouveau_drm_open(struct drm_device *dev, struct drm_file *fpriv) 939 { 940 struct nouveau_drm *drm = nouveau_drm(dev); 941 struct nouveau_cli *cli; 942 char name[32], tmpname[TASK_COMM_LEN]; 943 int ret; 944 945 /* need to bring up power immediately if opening device */ 946 ret = pm_runtime_get_sync(dev->dev); 947 if (ret < 0 && ret != -EACCES) 948 return ret; 949 950 get_task_comm(tmpname, current); 951 snprintf(name, sizeof(name), "%s[%d]", tmpname, pid_nr(fpriv->pid)); 952 953 if (!(cli = kzalloc(sizeof(*cli), GFP_KERNEL))) 954 return ret; 955 956 ret = nouveau_cli_init(drm, name, cli); 957 if (ret) 958 goto done; 959 960 cli->base.super = false; 961 962 fpriv->driver_priv = cli; 963 964 mutex_lock(&drm->client.mutex); 965 list_add(&cli->head, &drm->clients); 966 mutex_unlock(&drm->client.mutex); 967 968 done: 969 if (ret && cli) { 970 nouveau_cli_fini(cli); 971 kfree(cli); 972 } 973 974 pm_runtime_mark_last_busy(dev->dev); 975 pm_runtime_put_autosuspend(dev->dev); 976 return ret; 977 } 978 979 static void 980 nouveau_drm_postclose(struct drm_device *dev, struct drm_file *fpriv) 981 { 982 struct nouveau_cli *cli = nouveau_cli(fpriv); 983 struct nouveau_drm *drm = nouveau_drm(dev); 984 985 pm_runtime_get_sync(dev->dev); 986 987 mutex_lock(&cli->mutex); 988 if (cli->abi16) 989 nouveau_abi16_fini(cli->abi16); 990 mutex_unlock(&cli->mutex); 991 992 mutex_lock(&drm->client.mutex); 993 list_del(&cli->head); 994 mutex_unlock(&drm->client.mutex); 995 996 nouveau_cli_fini(cli); 997 kfree(cli); 998 pm_runtime_mark_last_busy(dev->dev); 999 pm_runtime_put_autosuspend(dev->dev); 1000 } 1001 1002 static const struct drm_ioctl_desc 1003 nouveau_ioctls[] = { 1004 DRM_IOCTL_DEF_DRV(NOUVEAU_GETPARAM, nouveau_abi16_ioctl_getparam, DRM_AUTH|DRM_RENDER_ALLOW), 1005 DRM_IOCTL_DEF_DRV(NOUVEAU_SETPARAM, nouveau_abi16_ioctl_setparam, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 1006 DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_ALLOC, nouveau_abi16_ioctl_channel_alloc, DRM_AUTH|DRM_RENDER_ALLOW), 1007 DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_FREE, nouveau_abi16_ioctl_channel_free, DRM_AUTH|DRM_RENDER_ALLOW), 1008 DRM_IOCTL_DEF_DRV(NOUVEAU_GROBJ_ALLOC, nouveau_abi16_ioctl_grobj_alloc, DRM_AUTH|DRM_RENDER_ALLOW), 1009 DRM_IOCTL_DEF_DRV(NOUVEAU_NOTIFIEROBJ_ALLOC, nouveau_abi16_ioctl_notifierobj_alloc, DRM_AUTH|DRM_RENDER_ALLOW), 1010 DRM_IOCTL_DEF_DRV(NOUVEAU_GPUOBJ_FREE, nouveau_abi16_ioctl_gpuobj_free, DRM_AUTH|DRM_RENDER_ALLOW), 1011 DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_NEW, nouveau_gem_ioctl_new, DRM_AUTH|DRM_RENDER_ALLOW), 1012 DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_PUSHBUF, nouveau_gem_ioctl_pushbuf, DRM_AUTH|DRM_RENDER_ALLOW), 1013 DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_PREP, nouveau_gem_ioctl_cpu_prep, DRM_AUTH|DRM_RENDER_ALLOW), 1014 DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_FINI, nouveau_gem_ioctl_cpu_fini, DRM_AUTH|DRM_RENDER_ALLOW), 1015 DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_INFO, nouveau_gem_ioctl_info, DRM_AUTH|DRM_RENDER_ALLOW), 1016 }; 1017 1018 long 1019 nouveau_drm_ioctl(struct file *file, unsigned int cmd, unsigned long arg) 1020 { 1021 struct drm_file *filp = file->private_data; 1022 struct drm_device *dev = filp->minor->dev; 1023 long ret; 1024 1025 ret = pm_runtime_get_sync(dev->dev); 1026 if (ret < 0 && ret != -EACCES) 1027 return ret; 1028 1029 switch (_IOC_NR(cmd) - DRM_COMMAND_BASE) { 1030 case DRM_NOUVEAU_NVIF: 1031 ret = usif_ioctl(filp, (void __user *)arg, _IOC_SIZE(cmd)); 1032 break; 1033 default: 1034 ret = drm_ioctl(file, cmd, arg); 1035 break; 1036 } 1037 1038 pm_runtime_mark_last_busy(dev->dev); 1039 pm_runtime_put_autosuspend(dev->dev); 1040 return ret; 1041 } 1042 1043 static const struct file_operations 1044 nouveau_driver_fops = { 1045 .owner = THIS_MODULE, 1046 .open = drm_open, 1047 .release = drm_release, 1048 .unlocked_ioctl = nouveau_drm_ioctl, 1049 .mmap = nouveau_ttm_mmap, 1050 .poll = drm_poll, 1051 .read = drm_read, 1052 #if defined(CONFIG_COMPAT) 1053 .compat_ioctl = nouveau_compat_ioctl, 1054 #endif 1055 .llseek = noop_llseek, 1056 }; 1057 1058 static struct drm_driver 1059 driver_stub = { 1060 .driver_features = 1061 DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME | DRIVER_RENDER | 1062 DRIVER_KMS_LEGACY_CONTEXT, 1063 1064 .load = nouveau_drm_load, 1065 .unload = nouveau_drm_unload, 1066 .open = nouveau_drm_open, 1067 .postclose = nouveau_drm_postclose, 1068 .lastclose = nouveau_vga_lastclose, 1069 1070 #if defined(CONFIG_DEBUG_FS) 1071 .debugfs_init = nouveau_drm_debugfs_init, 1072 #endif 1073 1074 .enable_vblank = nouveau_display_vblank_enable, 1075 .disable_vblank = nouveau_display_vblank_disable, 1076 .get_scanout_position = nouveau_display_scanoutpos, 1077 .get_vblank_timestamp = drm_calc_vbltimestamp_from_scanoutpos, 1078 1079 .ioctls = nouveau_ioctls, 1080 .num_ioctls = ARRAY_SIZE(nouveau_ioctls), 1081 .fops = &nouveau_driver_fops, 1082 1083 .prime_handle_to_fd = drm_gem_prime_handle_to_fd, 1084 .prime_fd_to_handle = drm_gem_prime_fd_to_handle, 1085 .gem_prime_export = drm_gem_prime_export, 1086 .gem_prime_import = drm_gem_prime_import, 1087 .gem_prime_pin = nouveau_gem_prime_pin, 1088 .gem_prime_res_obj = nouveau_gem_prime_res_obj, 1089 .gem_prime_unpin = nouveau_gem_prime_unpin, 1090 .gem_prime_get_sg_table = nouveau_gem_prime_get_sg_table, 1091 .gem_prime_import_sg_table = nouveau_gem_prime_import_sg_table, 1092 .gem_prime_vmap = nouveau_gem_prime_vmap, 1093 .gem_prime_vunmap = nouveau_gem_prime_vunmap, 1094 1095 .gem_free_object_unlocked = nouveau_gem_object_del, 1096 .gem_open_object = nouveau_gem_object_open, 1097 .gem_close_object = nouveau_gem_object_close, 1098 1099 .dumb_create = nouveau_display_dumb_create, 1100 .dumb_map_offset = nouveau_display_dumb_map_offset, 1101 1102 .name = DRIVER_NAME, 1103 .desc = DRIVER_DESC, 1104 #ifdef GIT_REVISION 1105 .date = GIT_REVISION, 1106 #else 1107 .date = DRIVER_DATE, 1108 #endif 1109 .major = DRIVER_MAJOR, 1110 .minor = DRIVER_MINOR, 1111 .patchlevel = DRIVER_PATCHLEVEL, 1112 }; 1113 1114 static struct pci_device_id 1115 nouveau_drm_pci_table[] = { 1116 { 1117 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID), 1118 .class = PCI_BASE_CLASS_DISPLAY << 16, 1119 .class_mask = 0xff << 16, 1120 }, 1121 { 1122 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA_SGS, PCI_ANY_ID), 1123 .class = PCI_BASE_CLASS_DISPLAY << 16, 1124 .class_mask = 0xff << 16, 1125 }, 1126 {} 1127 }; 1128 1129 static void nouveau_display_options(void) 1130 { 1131 DRM_DEBUG_DRIVER("Loading Nouveau with parameters:\n"); 1132 1133 DRM_DEBUG_DRIVER("... tv_disable : %d\n", nouveau_tv_disable); 1134 DRM_DEBUG_DRIVER("... ignorelid : %d\n", nouveau_ignorelid); 1135 DRM_DEBUG_DRIVER("... duallink : %d\n", nouveau_duallink); 1136 DRM_DEBUG_DRIVER("... nofbaccel : %d\n", nouveau_nofbaccel); 1137 DRM_DEBUG_DRIVER("... config : %s\n", nouveau_config); 1138 DRM_DEBUG_DRIVER("... debug : %s\n", nouveau_debug); 1139 DRM_DEBUG_DRIVER("... noaccel : %d\n", nouveau_noaccel); 1140 DRM_DEBUG_DRIVER("... modeset : %d\n", nouveau_modeset); 1141 DRM_DEBUG_DRIVER("... runpm : %d\n", nouveau_runtime_pm); 1142 DRM_DEBUG_DRIVER("... vram_pushbuf : %d\n", nouveau_vram_pushbuf); 1143 DRM_DEBUG_DRIVER("... hdmimhz : %d\n", nouveau_hdmimhz); 1144 } 1145 1146 static const struct dev_pm_ops nouveau_pm_ops = { 1147 .suspend = nouveau_pmops_suspend, 1148 .resume = nouveau_pmops_resume, 1149 .freeze = nouveau_pmops_freeze, 1150 .thaw = nouveau_pmops_thaw, 1151 .poweroff = nouveau_pmops_freeze, 1152 .restore = nouveau_pmops_resume, 1153 .runtime_suspend = nouveau_pmops_runtime_suspend, 1154 .runtime_resume = nouveau_pmops_runtime_resume, 1155 .runtime_idle = nouveau_pmops_runtime_idle, 1156 }; 1157 1158 static struct pci_driver 1159 nouveau_drm_pci_driver = { 1160 .name = "nouveau", 1161 .id_table = nouveau_drm_pci_table, 1162 .probe = nouveau_drm_probe, 1163 .remove = nouveau_drm_remove, 1164 .driver.pm = &nouveau_pm_ops, 1165 }; 1166 1167 struct drm_device * 1168 nouveau_platform_device_create(const struct nvkm_device_tegra_func *func, 1169 struct platform_device *pdev, 1170 struct nvkm_device **pdevice) 1171 { 1172 struct drm_device *drm; 1173 int err; 1174 1175 err = nvkm_device_tegra_new(func, pdev, nouveau_config, nouveau_debug, 1176 true, true, ~0ULL, pdevice); 1177 if (err) 1178 goto err_free; 1179 1180 drm = drm_dev_alloc(&driver_platform, &pdev->dev); 1181 if (IS_ERR(drm)) { 1182 err = PTR_ERR(drm); 1183 goto err_free; 1184 } 1185 1186 platform_set_drvdata(pdev, drm); 1187 1188 return drm; 1189 1190 err_free: 1191 nvkm_device_del(pdevice); 1192 1193 return ERR_PTR(err); 1194 } 1195 1196 static int __init 1197 nouveau_drm_init(void) 1198 { 1199 driver_pci = driver_stub; 1200 driver_platform = driver_stub; 1201 1202 nouveau_display_options(); 1203 1204 if (nouveau_modeset == -1) { 1205 if (vgacon_text_force()) 1206 nouveau_modeset = 0; 1207 } 1208 1209 if (!nouveau_modeset) 1210 return 0; 1211 1212 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER 1213 platform_driver_register(&nouveau_platform_driver); 1214 #endif 1215 1216 nouveau_register_dsm_handler(); 1217 nouveau_backlight_ctor(); 1218 1219 #ifdef CONFIG_PCI 1220 return pci_register_driver(&nouveau_drm_pci_driver); 1221 #else 1222 return 0; 1223 #endif 1224 } 1225 1226 static void __exit 1227 nouveau_drm_exit(void) 1228 { 1229 if (!nouveau_modeset) 1230 return; 1231 1232 #ifdef CONFIG_PCI 1233 pci_unregister_driver(&nouveau_drm_pci_driver); 1234 #endif 1235 nouveau_backlight_dtor(); 1236 nouveau_unregister_dsm_handler(); 1237 1238 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER 1239 platform_driver_unregister(&nouveau_platform_driver); 1240 #endif 1241 } 1242 1243 module_init(nouveau_drm_init); 1244 module_exit(nouveau_drm_exit); 1245 1246 MODULE_DEVICE_TABLE(pci, nouveau_drm_pci_table); 1247 MODULE_AUTHOR(DRIVER_AUTHOR); 1248 MODULE_DESCRIPTION(DRIVER_DESC); 1249 MODULE_LICENSE("GPL and additional rights"); 1250