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_bus_and_slot((unsigned int)pdev->bus->number, 528 PCI_DEVFN(PCI_SLOT(pdev->devfn), 1)); 529 530 if (!drm->hdmi_device) { 531 NV_DEBUG(drm, "hdmi device not found %d %d %d\n", pdev->bus->number, PCI_SLOT(pdev->devfn), 1); 532 return; 533 } 534 535 if ((drm->hdmi_device->class >> 8) != PCI_CLASS_MULTIMEDIA_HD_AUDIO) { 536 NV_DEBUG(drm, "possible hdmi device not audio %d\n", drm->hdmi_device->class); 537 pci_dev_put(drm->hdmi_device); 538 drm->hdmi_device = NULL; 539 return; 540 } 541 } 542 543 static int 544 nouveau_drm_load(struct drm_device *dev, unsigned long flags) 545 { 546 struct nouveau_drm *drm; 547 int ret; 548 549 if (!(drm = kzalloc(sizeof(*drm), GFP_KERNEL))) 550 return -ENOMEM; 551 dev->dev_private = drm; 552 drm->dev = dev; 553 554 ret = nouveau_cli_init(drm, "DRM-master", &drm->master); 555 if (ret) 556 return ret; 557 558 ret = nouveau_cli_init(drm, "DRM", &drm->client); 559 if (ret) 560 return ret; 561 562 dev->irq_enabled = true; 563 564 nvxx_client(&drm->client.base)->debug = 565 nvkm_dbgopt(nouveau_debug, "DRM"); 566 567 INIT_LIST_HEAD(&drm->clients); 568 spin_lock_init(&drm->tile.lock); 569 570 nouveau_get_hdmi_dev(drm); 571 572 /* workaround an odd issue on nvc1 by disabling the device's 573 * nosnoop capability. hopefully won't cause issues until a 574 * better fix is found - assuming there is one... 575 */ 576 if (drm->client.device.info.chipset == 0xc1) 577 nvif_mask(&drm->client.device.object, 0x00088080, 0x00000800, 0x00000000); 578 579 nouveau_vga_init(drm); 580 581 ret = nouveau_ttm_init(drm); 582 if (ret) 583 goto fail_ttm; 584 585 ret = nouveau_bios_init(dev); 586 if (ret) 587 goto fail_bios; 588 589 ret = nouveau_display_create(dev); 590 if (ret) 591 goto fail_dispctor; 592 593 if (dev->mode_config.num_crtc) { 594 ret = nouveau_display_init(dev); 595 if (ret) 596 goto fail_dispinit; 597 } 598 599 nouveau_debugfs_init(drm); 600 nouveau_hwmon_init(dev); 601 nouveau_accel_init(drm); 602 nouveau_fbcon_init(dev); 603 nouveau_led_init(dev); 604 605 if (nouveau_pmops_runtime()) { 606 pm_runtime_use_autosuspend(dev->dev); 607 pm_runtime_set_autosuspend_delay(dev->dev, 5000); 608 pm_runtime_set_active(dev->dev); 609 pm_runtime_allow(dev->dev); 610 pm_runtime_mark_last_busy(dev->dev); 611 pm_runtime_put(dev->dev); 612 } else { 613 /* enable polling for external displays */ 614 drm_kms_helper_poll_enable(dev); 615 } 616 return 0; 617 618 fail_dispinit: 619 nouveau_display_destroy(dev); 620 fail_dispctor: 621 nouveau_bios_takedown(dev); 622 fail_bios: 623 nouveau_ttm_fini(drm); 624 fail_ttm: 625 nouveau_vga_fini(drm); 626 nouveau_cli_fini(&drm->client); 627 nouveau_cli_fini(&drm->master); 628 kfree(drm); 629 return ret; 630 } 631 632 static void 633 nouveau_drm_unload(struct drm_device *dev) 634 { 635 struct nouveau_drm *drm = nouveau_drm(dev); 636 637 if (nouveau_pmops_runtime()) { 638 pm_runtime_get_sync(dev->dev); 639 pm_runtime_forbid(dev->dev); 640 } 641 642 nouveau_led_fini(dev); 643 nouveau_fbcon_fini(dev); 644 nouveau_accel_fini(drm); 645 nouveau_hwmon_fini(dev); 646 nouveau_debugfs_fini(drm); 647 648 if (dev->mode_config.num_crtc) 649 nouveau_display_fini(dev, false); 650 nouveau_display_destroy(dev); 651 652 nouveau_bios_takedown(dev); 653 654 nouveau_ttm_fini(drm); 655 nouveau_vga_fini(drm); 656 657 if (drm->hdmi_device) 658 pci_dev_put(drm->hdmi_device); 659 nouveau_cli_fini(&drm->client); 660 nouveau_cli_fini(&drm->master); 661 kfree(drm); 662 } 663 664 void 665 nouveau_drm_device_remove(struct drm_device *dev) 666 { 667 struct nouveau_drm *drm = nouveau_drm(dev); 668 struct nvkm_client *client; 669 struct nvkm_device *device; 670 671 dev->irq_enabled = false; 672 client = nvxx_client(&drm->client.base); 673 device = nvkm_device_find(client->device); 674 drm_put_dev(dev); 675 676 nvkm_device_del(&device); 677 } 678 679 static void 680 nouveau_drm_remove(struct pci_dev *pdev) 681 { 682 struct drm_device *dev = pci_get_drvdata(pdev); 683 684 nouveau_drm_device_remove(dev); 685 } 686 687 static int 688 nouveau_do_suspend(struct drm_device *dev, bool runtime) 689 { 690 struct nouveau_drm *drm = nouveau_drm(dev); 691 int ret; 692 693 nouveau_led_suspend(dev); 694 695 if (dev->mode_config.num_crtc) { 696 NV_DEBUG(drm, "suspending console...\n"); 697 nouveau_fbcon_set_suspend(dev, 1); 698 NV_DEBUG(drm, "suspending display...\n"); 699 ret = nouveau_display_suspend(dev, runtime); 700 if (ret) 701 return ret; 702 } 703 704 NV_DEBUG(drm, "evicting buffers...\n"); 705 ttm_bo_evict_mm(&drm->ttm.bdev, TTM_PL_VRAM); 706 707 NV_DEBUG(drm, "waiting for kernel channels to go idle...\n"); 708 if (drm->cechan) { 709 ret = nouveau_channel_idle(drm->cechan); 710 if (ret) 711 goto fail_display; 712 } 713 714 if (drm->channel) { 715 ret = nouveau_channel_idle(drm->channel); 716 if (ret) 717 goto fail_display; 718 } 719 720 NV_DEBUG(drm, "suspending fence...\n"); 721 if (drm->fence && nouveau_fence(drm)->suspend) { 722 if (!nouveau_fence(drm)->suspend(drm)) { 723 ret = -ENOMEM; 724 goto fail_display; 725 } 726 } 727 728 NV_DEBUG(drm, "suspending object tree...\n"); 729 ret = nvif_client_suspend(&drm->master.base); 730 if (ret) 731 goto fail_client; 732 733 return 0; 734 735 fail_client: 736 if (drm->fence && nouveau_fence(drm)->resume) 737 nouveau_fence(drm)->resume(drm); 738 739 fail_display: 740 if (dev->mode_config.num_crtc) { 741 NV_DEBUG(drm, "resuming display...\n"); 742 nouveau_display_resume(dev, runtime); 743 } 744 return ret; 745 } 746 747 static int 748 nouveau_do_resume(struct drm_device *dev, bool runtime) 749 { 750 struct nouveau_drm *drm = nouveau_drm(dev); 751 752 NV_DEBUG(drm, "resuming object tree...\n"); 753 nvif_client_resume(&drm->master.base); 754 755 NV_DEBUG(drm, "resuming fence...\n"); 756 if (drm->fence && nouveau_fence(drm)->resume) 757 nouveau_fence(drm)->resume(drm); 758 759 nouveau_run_vbios_init(dev); 760 761 if (dev->mode_config.num_crtc) { 762 NV_DEBUG(drm, "resuming display...\n"); 763 nouveau_display_resume(dev, runtime); 764 NV_DEBUG(drm, "resuming console...\n"); 765 nouveau_fbcon_set_suspend(dev, 0); 766 } 767 768 nouveau_led_resume(dev); 769 770 return 0; 771 } 772 773 int 774 nouveau_pmops_suspend(struct device *dev) 775 { 776 struct pci_dev *pdev = to_pci_dev(dev); 777 struct drm_device *drm_dev = pci_get_drvdata(pdev); 778 int ret; 779 780 if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF || 781 drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF) 782 return 0; 783 784 ret = nouveau_do_suspend(drm_dev, false); 785 if (ret) 786 return ret; 787 788 pci_save_state(pdev); 789 pci_disable_device(pdev); 790 pci_set_power_state(pdev, PCI_D3hot); 791 udelay(200); 792 return 0; 793 } 794 795 int 796 nouveau_pmops_resume(struct device *dev) 797 { 798 struct pci_dev *pdev = to_pci_dev(dev); 799 struct drm_device *drm_dev = pci_get_drvdata(pdev); 800 int ret; 801 802 if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF || 803 drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF) 804 return 0; 805 806 pci_set_power_state(pdev, PCI_D0); 807 pci_restore_state(pdev); 808 ret = pci_enable_device(pdev); 809 if (ret) 810 return ret; 811 pci_set_master(pdev); 812 813 ret = nouveau_do_resume(drm_dev, false); 814 815 /* Monitors may have been connected / disconnected during suspend */ 816 schedule_work(&nouveau_drm(drm_dev)->hpd_work); 817 818 return ret; 819 } 820 821 static int 822 nouveau_pmops_freeze(struct device *dev) 823 { 824 struct pci_dev *pdev = to_pci_dev(dev); 825 struct drm_device *drm_dev = pci_get_drvdata(pdev); 826 return nouveau_do_suspend(drm_dev, false); 827 } 828 829 static int 830 nouveau_pmops_thaw(struct device *dev) 831 { 832 struct pci_dev *pdev = to_pci_dev(dev); 833 struct drm_device *drm_dev = pci_get_drvdata(pdev); 834 return nouveau_do_resume(drm_dev, false); 835 } 836 837 bool 838 nouveau_pmops_runtime(void) 839 { 840 if (nouveau_runtime_pm == -1) 841 return nouveau_is_optimus() || nouveau_is_v1_dsm(); 842 return nouveau_runtime_pm == 1; 843 } 844 845 static int 846 nouveau_pmops_runtime_suspend(struct device *dev) 847 { 848 struct pci_dev *pdev = to_pci_dev(dev); 849 struct drm_device *drm_dev = pci_get_drvdata(pdev); 850 int ret; 851 852 if (!nouveau_pmops_runtime()) { 853 pm_runtime_forbid(dev); 854 return -EBUSY; 855 } 856 857 drm_kms_helper_poll_disable(drm_dev); 858 vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_OFF); 859 nouveau_switcheroo_optimus_dsm(); 860 ret = nouveau_do_suspend(drm_dev, true); 861 pci_save_state(pdev); 862 pci_disable_device(pdev); 863 pci_ignore_hotplug(pdev); 864 pci_set_power_state(pdev, PCI_D3cold); 865 drm_dev->switch_power_state = DRM_SWITCH_POWER_DYNAMIC_OFF; 866 return ret; 867 } 868 869 static int 870 nouveau_pmops_runtime_resume(struct device *dev) 871 { 872 struct pci_dev *pdev = to_pci_dev(dev); 873 struct drm_device *drm_dev = pci_get_drvdata(pdev); 874 struct nvif_device *device = &nouveau_drm(drm_dev)->client.device; 875 int ret; 876 877 if (!nouveau_pmops_runtime()) { 878 pm_runtime_forbid(dev); 879 return -EBUSY; 880 } 881 882 pci_set_power_state(pdev, PCI_D0); 883 pci_restore_state(pdev); 884 ret = pci_enable_device(pdev); 885 if (ret) 886 return ret; 887 pci_set_master(pdev); 888 889 ret = nouveau_do_resume(drm_dev, true); 890 891 /* do magic */ 892 nvif_mask(&device->object, 0x088488, (1 << 25), (1 << 25)); 893 vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_ON); 894 drm_dev->switch_power_state = DRM_SWITCH_POWER_ON; 895 896 /* Monitors may have been connected / disconnected during suspend */ 897 schedule_work(&nouveau_drm(drm_dev)->hpd_work); 898 899 return ret; 900 } 901 902 static int 903 nouveau_pmops_runtime_idle(struct device *dev) 904 { 905 struct pci_dev *pdev = to_pci_dev(dev); 906 struct drm_device *drm_dev = pci_get_drvdata(pdev); 907 struct nouveau_drm *drm = nouveau_drm(drm_dev); 908 struct drm_crtc *crtc; 909 910 if (!nouveau_pmops_runtime()) { 911 pm_runtime_forbid(dev); 912 return -EBUSY; 913 } 914 915 /* if we have a hdmi audio device - make sure it has a driver loaded */ 916 if (drm->hdmi_device) { 917 if (!drm->hdmi_device->driver) { 918 DRM_DEBUG_DRIVER("failing to power off - no HDMI audio driver loaded\n"); 919 pm_runtime_mark_last_busy(dev); 920 return -EBUSY; 921 } 922 } 923 924 list_for_each_entry(crtc, &drm->dev->mode_config.crtc_list, head) { 925 if (crtc->enabled) { 926 DRM_DEBUG_DRIVER("failing to power off - crtc active\n"); 927 return -EBUSY; 928 } 929 } 930 pm_runtime_mark_last_busy(dev); 931 pm_runtime_autosuspend(dev); 932 /* we don't want the main rpm_idle to call suspend - we want to autosuspend */ 933 return 1; 934 } 935 936 static int 937 nouveau_drm_open(struct drm_device *dev, struct drm_file *fpriv) 938 { 939 struct nouveau_drm *drm = nouveau_drm(dev); 940 struct nouveau_cli *cli; 941 char name[32], tmpname[TASK_COMM_LEN]; 942 int ret; 943 944 /* need to bring up power immediately if opening device */ 945 ret = pm_runtime_get_sync(dev->dev); 946 if (ret < 0 && ret != -EACCES) 947 return ret; 948 949 get_task_comm(tmpname, current); 950 snprintf(name, sizeof(name), "%s[%d]", tmpname, pid_nr(fpriv->pid)); 951 952 if (!(cli = kzalloc(sizeof(*cli), GFP_KERNEL))) 953 return ret; 954 955 ret = nouveau_cli_init(drm, name, cli); 956 if (ret) 957 goto done; 958 959 cli->base.super = false; 960 961 fpriv->driver_priv = cli; 962 963 mutex_lock(&drm->client.mutex); 964 list_add(&cli->head, &drm->clients); 965 mutex_unlock(&drm->client.mutex); 966 967 done: 968 if (ret && cli) { 969 nouveau_cli_fini(cli); 970 kfree(cli); 971 } 972 973 pm_runtime_mark_last_busy(dev->dev); 974 pm_runtime_put_autosuspend(dev->dev); 975 return ret; 976 } 977 978 static void 979 nouveau_drm_postclose(struct drm_device *dev, struct drm_file *fpriv) 980 { 981 struct nouveau_cli *cli = nouveau_cli(fpriv); 982 struct nouveau_drm *drm = nouveau_drm(dev); 983 984 pm_runtime_get_sync(dev->dev); 985 986 mutex_lock(&cli->mutex); 987 if (cli->abi16) 988 nouveau_abi16_fini(cli->abi16); 989 mutex_unlock(&cli->mutex); 990 991 mutex_lock(&drm->client.mutex); 992 list_del(&cli->head); 993 mutex_unlock(&drm->client.mutex); 994 995 nouveau_cli_fini(cli); 996 kfree(cli); 997 pm_runtime_mark_last_busy(dev->dev); 998 pm_runtime_put_autosuspend(dev->dev); 999 } 1000 1001 static const struct drm_ioctl_desc 1002 nouveau_ioctls[] = { 1003 DRM_IOCTL_DEF_DRV(NOUVEAU_GETPARAM, nouveau_abi16_ioctl_getparam, DRM_AUTH|DRM_RENDER_ALLOW), 1004 DRM_IOCTL_DEF_DRV(NOUVEAU_SETPARAM, nouveau_abi16_ioctl_setparam, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 1005 DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_ALLOC, nouveau_abi16_ioctl_channel_alloc, DRM_AUTH|DRM_RENDER_ALLOW), 1006 DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_FREE, nouveau_abi16_ioctl_channel_free, DRM_AUTH|DRM_RENDER_ALLOW), 1007 DRM_IOCTL_DEF_DRV(NOUVEAU_GROBJ_ALLOC, nouveau_abi16_ioctl_grobj_alloc, DRM_AUTH|DRM_RENDER_ALLOW), 1008 DRM_IOCTL_DEF_DRV(NOUVEAU_NOTIFIEROBJ_ALLOC, nouveau_abi16_ioctl_notifierobj_alloc, DRM_AUTH|DRM_RENDER_ALLOW), 1009 DRM_IOCTL_DEF_DRV(NOUVEAU_GPUOBJ_FREE, nouveau_abi16_ioctl_gpuobj_free, DRM_AUTH|DRM_RENDER_ALLOW), 1010 DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_NEW, nouveau_gem_ioctl_new, DRM_AUTH|DRM_RENDER_ALLOW), 1011 DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_PUSHBUF, nouveau_gem_ioctl_pushbuf, DRM_AUTH|DRM_RENDER_ALLOW), 1012 DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_PREP, nouveau_gem_ioctl_cpu_prep, DRM_AUTH|DRM_RENDER_ALLOW), 1013 DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_FINI, nouveau_gem_ioctl_cpu_fini, DRM_AUTH|DRM_RENDER_ALLOW), 1014 DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_INFO, nouveau_gem_ioctl_info, DRM_AUTH|DRM_RENDER_ALLOW), 1015 }; 1016 1017 long 1018 nouveau_drm_ioctl(struct file *file, unsigned int cmd, unsigned long arg) 1019 { 1020 struct drm_file *filp = file->private_data; 1021 struct drm_device *dev = filp->minor->dev; 1022 long ret; 1023 1024 ret = pm_runtime_get_sync(dev->dev); 1025 if (ret < 0 && ret != -EACCES) 1026 return ret; 1027 1028 switch (_IOC_NR(cmd) - DRM_COMMAND_BASE) { 1029 case DRM_NOUVEAU_NVIF: 1030 ret = usif_ioctl(filp, (void __user *)arg, _IOC_SIZE(cmd)); 1031 break; 1032 default: 1033 ret = drm_ioctl(file, cmd, arg); 1034 break; 1035 } 1036 1037 pm_runtime_mark_last_busy(dev->dev); 1038 pm_runtime_put_autosuspend(dev->dev); 1039 return ret; 1040 } 1041 1042 static const struct file_operations 1043 nouveau_driver_fops = { 1044 .owner = THIS_MODULE, 1045 .open = drm_open, 1046 .release = drm_release, 1047 .unlocked_ioctl = nouveau_drm_ioctl, 1048 .mmap = nouveau_ttm_mmap, 1049 .poll = drm_poll, 1050 .read = drm_read, 1051 #if defined(CONFIG_COMPAT) 1052 .compat_ioctl = nouveau_compat_ioctl, 1053 #endif 1054 .llseek = noop_llseek, 1055 }; 1056 1057 static struct drm_driver 1058 driver_stub = { 1059 .driver_features = 1060 DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME | DRIVER_RENDER | 1061 DRIVER_KMS_LEGACY_CONTEXT, 1062 1063 .load = nouveau_drm_load, 1064 .unload = nouveau_drm_unload, 1065 .open = nouveau_drm_open, 1066 .postclose = nouveau_drm_postclose, 1067 .lastclose = nouveau_vga_lastclose, 1068 1069 #if defined(CONFIG_DEBUG_FS) 1070 .debugfs_init = nouveau_drm_debugfs_init, 1071 #endif 1072 1073 .enable_vblank = nouveau_display_vblank_enable, 1074 .disable_vblank = nouveau_display_vblank_disable, 1075 .get_scanout_position = nouveau_display_scanoutpos, 1076 .get_vblank_timestamp = drm_calc_vbltimestamp_from_scanoutpos, 1077 1078 .ioctls = nouveau_ioctls, 1079 .num_ioctls = ARRAY_SIZE(nouveau_ioctls), 1080 .fops = &nouveau_driver_fops, 1081 1082 .prime_handle_to_fd = drm_gem_prime_handle_to_fd, 1083 .prime_fd_to_handle = drm_gem_prime_fd_to_handle, 1084 .gem_prime_export = drm_gem_prime_export, 1085 .gem_prime_import = drm_gem_prime_import, 1086 .gem_prime_pin = nouveau_gem_prime_pin, 1087 .gem_prime_res_obj = nouveau_gem_prime_res_obj, 1088 .gem_prime_unpin = nouveau_gem_prime_unpin, 1089 .gem_prime_get_sg_table = nouveau_gem_prime_get_sg_table, 1090 .gem_prime_import_sg_table = nouveau_gem_prime_import_sg_table, 1091 .gem_prime_vmap = nouveau_gem_prime_vmap, 1092 .gem_prime_vunmap = nouveau_gem_prime_vunmap, 1093 1094 .gem_free_object_unlocked = nouveau_gem_object_del, 1095 .gem_open_object = nouveau_gem_object_open, 1096 .gem_close_object = nouveau_gem_object_close, 1097 1098 .dumb_create = nouveau_display_dumb_create, 1099 .dumb_map_offset = nouveau_display_dumb_map_offset, 1100 1101 .name = DRIVER_NAME, 1102 .desc = DRIVER_DESC, 1103 #ifdef GIT_REVISION 1104 .date = GIT_REVISION, 1105 #else 1106 .date = DRIVER_DATE, 1107 #endif 1108 .major = DRIVER_MAJOR, 1109 .minor = DRIVER_MINOR, 1110 .patchlevel = DRIVER_PATCHLEVEL, 1111 }; 1112 1113 static struct pci_device_id 1114 nouveau_drm_pci_table[] = { 1115 { 1116 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID), 1117 .class = PCI_BASE_CLASS_DISPLAY << 16, 1118 .class_mask = 0xff << 16, 1119 }, 1120 { 1121 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA_SGS, PCI_ANY_ID), 1122 .class = PCI_BASE_CLASS_DISPLAY << 16, 1123 .class_mask = 0xff << 16, 1124 }, 1125 {} 1126 }; 1127 1128 static void nouveau_display_options(void) 1129 { 1130 DRM_DEBUG_DRIVER("Loading Nouveau with parameters:\n"); 1131 1132 DRM_DEBUG_DRIVER("... tv_disable : %d\n", nouveau_tv_disable); 1133 DRM_DEBUG_DRIVER("... ignorelid : %d\n", nouveau_ignorelid); 1134 DRM_DEBUG_DRIVER("... duallink : %d\n", nouveau_duallink); 1135 DRM_DEBUG_DRIVER("... nofbaccel : %d\n", nouveau_nofbaccel); 1136 DRM_DEBUG_DRIVER("... config : %s\n", nouveau_config); 1137 DRM_DEBUG_DRIVER("... debug : %s\n", nouveau_debug); 1138 DRM_DEBUG_DRIVER("... noaccel : %d\n", nouveau_noaccel); 1139 DRM_DEBUG_DRIVER("... modeset : %d\n", nouveau_modeset); 1140 DRM_DEBUG_DRIVER("... runpm : %d\n", nouveau_runtime_pm); 1141 DRM_DEBUG_DRIVER("... vram_pushbuf : %d\n", nouveau_vram_pushbuf); 1142 DRM_DEBUG_DRIVER("... hdmimhz : %d\n", nouveau_hdmimhz); 1143 } 1144 1145 static const struct dev_pm_ops nouveau_pm_ops = { 1146 .suspend = nouveau_pmops_suspend, 1147 .resume = nouveau_pmops_resume, 1148 .freeze = nouveau_pmops_freeze, 1149 .thaw = nouveau_pmops_thaw, 1150 .poweroff = nouveau_pmops_freeze, 1151 .restore = nouveau_pmops_resume, 1152 .runtime_suspend = nouveau_pmops_runtime_suspend, 1153 .runtime_resume = nouveau_pmops_runtime_resume, 1154 .runtime_idle = nouveau_pmops_runtime_idle, 1155 }; 1156 1157 static struct pci_driver 1158 nouveau_drm_pci_driver = { 1159 .name = "nouveau", 1160 .id_table = nouveau_drm_pci_table, 1161 .probe = nouveau_drm_probe, 1162 .remove = nouveau_drm_remove, 1163 .driver.pm = &nouveau_pm_ops, 1164 }; 1165 1166 struct drm_device * 1167 nouveau_platform_device_create(const struct nvkm_device_tegra_func *func, 1168 struct platform_device *pdev, 1169 struct nvkm_device **pdevice) 1170 { 1171 struct drm_device *drm; 1172 int err; 1173 1174 err = nvkm_device_tegra_new(func, pdev, nouveau_config, nouveau_debug, 1175 true, true, ~0ULL, pdevice); 1176 if (err) 1177 goto err_free; 1178 1179 drm = drm_dev_alloc(&driver_platform, &pdev->dev); 1180 if (IS_ERR(drm)) { 1181 err = PTR_ERR(drm); 1182 goto err_free; 1183 } 1184 1185 platform_set_drvdata(pdev, drm); 1186 1187 return drm; 1188 1189 err_free: 1190 nvkm_device_del(pdevice); 1191 1192 return ERR_PTR(err); 1193 } 1194 1195 static int __init 1196 nouveau_drm_init(void) 1197 { 1198 driver_pci = driver_stub; 1199 driver_platform = driver_stub; 1200 1201 nouveau_display_options(); 1202 1203 if (nouveau_modeset == -1) { 1204 if (vgacon_text_force()) 1205 nouveau_modeset = 0; 1206 } 1207 1208 if (!nouveau_modeset) 1209 return 0; 1210 1211 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER 1212 platform_driver_register(&nouveau_platform_driver); 1213 #endif 1214 1215 nouveau_register_dsm_handler(); 1216 nouveau_backlight_ctor(); 1217 1218 #ifdef CONFIG_PCI 1219 return pci_register_driver(&nouveau_drm_pci_driver); 1220 #else 1221 return 0; 1222 #endif 1223 } 1224 1225 static void __exit 1226 nouveau_drm_exit(void) 1227 { 1228 if (!nouveau_modeset) 1229 return; 1230 1231 #ifdef CONFIG_PCI 1232 pci_unregister_driver(&nouveau_drm_pci_driver); 1233 #endif 1234 nouveau_backlight_dtor(); 1235 nouveau_unregister_dsm_handler(); 1236 1237 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER 1238 platform_driver_unregister(&nouveau_platform_driver); 1239 #endif 1240 } 1241 1242 module_init(nouveau_drm_init); 1243 module_exit(nouveau_drm_exit); 1244 1245 MODULE_DEVICE_TABLE(pci, nouveau_drm_pci_table); 1246 MODULE_AUTHOR(DRIVER_AUTHOR); 1247 MODULE_DESCRIPTION(DRIVER_DESC); 1248 MODULE_LICENSE("GPL and additional rights"); 1249