drivers/gpu/drm/nouveau/nouveau_drm.c

   1 /*
   2  * Copyright 2012 Red Hat Inc.
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice shall be included in
  12  * all copies or substantial portions of the Software.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  20  * OTHER DEALINGS IN THE SOFTWARE.
  21  *
  22  * Authors: Ben Skeggs
  23  */
  24
  25 #include <linux/console.h>
  26 #include <linux/delay.h>
  27 #include <linux/module.h>
  28 #include <linux/pci.h>
  29 #include <linux/pm_runtime.h>
  30 #include <linux/vga_switcheroo.h>
  31
  32 #include "drmP.h"
  33 #include "drm_crtc_helper.h"
  34
  35 #include <core/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 void
 115 nouveau_cli_fini(struct nouveau_cli *cli)
 116 {
 117         nvkm_vm_ref(NULL, &nvxx_client(&cli->base)->vm, NULL);
 118         usif_client_fini(cli);
 119         nvif_device_fini(&cli->device);
 120         nvif_client_fini(&cli->base);
 121 }
 122
 123 static int
 124 nouveau_cli_init(struct nouveau_drm *drm, const char *sname,
 125                  struct nouveau_cli *cli)
 126 {
 127         u64 device = nouveau_name(drm->dev);
 128         int ret;
 129
 130         snprintf(cli->name, sizeof(cli->name), "%s", sname);
 131         cli->dev = drm->dev;
 132         mutex_init(&cli->mutex);
 133         usif_client_init(cli);
 134
 135         if (cli == &drm->client) {
 136                 ret = nvif_driver_init(NULL, nouveau_config, nouveau_debug,
 137                                        cli->name, device, &cli->base);
 138         } else {
 139                 ret = nvif_client_init(&drm->client.base, cli->name, device,
 140                                        &cli->base);
 141         }
 142         if (ret) {
 143                 NV_ERROR(drm, "Client allocation failed: %d\n", ret);
 144                 goto done;
 145         }
 146
 147         ret = nvif_device_init(&cli->base.object, 0, NV_DEVICE,
 148                                &(struct nv_device_v0) {
 149                                         .device = ~0,
 150                                }, sizeof(struct nv_device_v0),
 151                                &cli->device);
 152         if (ret) {
 153                 NV_ERROR(drm, "Device allocation failed: %d\n", ret);
 154                 goto done;
 155         }
 156
 157 done:
 158         if (ret)
 159                 nouveau_cli_fini(cli);
 160         return ret;
 161 }
 162
 163 static void
 164 nouveau_accel_fini(struct nouveau_drm *drm)
 165 {
 166         nouveau_channel_idle(drm->channel);
 167         nvif_object_fini(&drm->ntfy);
 168         nvkm_gpuobj_del(&drm->notify);
 169         nvif_notify_fini(&drm->flip);
 170         nvif_object_fini(&drm->nvsw);
 171         nouveau_channel_del(&drm->channel);
 172
 173         nouveau_channel_idle(drm->cechan);
 174         nvif_object_fini(&drm->ttm.copy);
 175         nouveau_channel_del(&drm->cechan);
 176
 177         if (drm->fence)
 178                 nouveau_fence(drm)->dtor(drm);
 179 }
 180
 181 static void
 182 nouveau_accel_init(struct nouveau_drm *drm)
 183 {
 184         struct nvif_device *device = &drm->client.device;
 185         struct nvif_sclass *sclass;
 186         u32 arg0, arg1;
 187         int ret, i, n;
 188
 189         if (nouveau_noaccel)
 190                 return;
 191
 192         /* initialise synchronisation routines */
 193         /*XXX: this is crap, but the fence/channel stuff is a little
 194          *     backwards in some places.  this will be fixed.
 195          */
 196         ret = n = nvif_object_sclass_get(&device->object, &sclass);
 197         if (ret < 0)
 198                 return;
 199
 200         for (ret = -ENOSYS, i = 0; i < n; i++) {
 201                 switch (sclass[i].oclass) {
 202                 case NV03_CHANNEL_DMA:
 203                         ret = nv04_fence_create(drm);
 204                         break;
 205                 case NV10_CHANNEL_DMA:
 206                         ret = nv10_fence_create(drm);
 207                         break;
 208                 case NV17_CHANNEL_DMA:
 209                 case NV40_CHANNEL_DMA:
 210                         ret = nv17_fence_create(drm);
 211                         break;
 212                 case NV50_CHANNEL_GPFIFO:
 213                         ret = nv50_fence_create(drm);
 214                         break;
 215                 case G82_CHANNEL_GPFIFO:
 216                         ret = nv84_fence_create(drm);
 217                         break;
 218                 case FERMI_CHANNEL_GPFIFO:
 219                 case KEPLER_CHANNEL_GPFIFO_A:
 220                 case KEPLER_CHANNEL_GPFIFO_B:
 221                 case MAXWELL_CHANNEL_GPFIFO_A:
 222                 case PASCAL_CHANNEL_GPFIFO_A:
 223                         ret = nvc0_fence_create(drm);
 224                         break;
 225                 default:
 226                         break;
 227                 }
 228         }
 229
 230         nvif_object_sclass_put(&sclass);
 231         if (ret) {
 232                 NV_ERROR(drm, "failed to initialise sync subsystem, %d\n", ret);
 233                 nouveau_accel_fini(drm);
 234                 return;
 235         }
 236
 237         if (device->info.family >= NV_DEVICE_INFO_V0_KEPLER) {
 238                 ret = nouveau_channel_new(drm, &drm->client.device,
 239                                           NVA06F_V0_ENGINE_CE0 |
 240                                           NVA06F_V0_ENGINE_CE1,
 241                                           0, &drm->cechan);
 242                 if (ret)
 243                         NV_ERROR(drm, "failed to create ce channel, %d\n", ret);
 244
 245                 arg0 = NVA06F_V0_ENGINE_GR;
 246                 arg1 = 1;
 247         } else
 248         if (device->info.chipset >= 0xa3 &&
 249             device->info.chipset != 0xaa &&
 250             device->info.chipset != 0xac) {
 251                 ret = nouveau_channel_new(drm, &drm->client.device,
 252                                           NvDmaFB, NvDmaTT, &drm->cechan);
 253                 if (ret)
 254                         NV_ERROR(drm, "failed to create ce channel, %d\n", ret);
 255
 256                 arg0 = NvDmaFB;
 257                 arg1 = NvDmaTT;
 258         } else {
 259                 arg0 = NvDmaFB;
 260                 arg1 = NvDmaTT;
 261         }
 262
 263         ret = nouveau_channel_new(drm, &drm->client.device,
 264                                   arg0, arg1, &drm->channel);
 265         if (ret) {
 266                 NV_ERROR(drm, "failed to create kernel channel, %d\n", ret);
 267                 nouveau_accel_fini(drm);
 268                 return;
 269         }
 270
 271         ret = nvif_object_init(&drm->channel->user, NVDRM_NVSW,
 272                                nouveau_abi16_swclass(drm), NULL, 0, &drm->nvsw);
 273         if (ret == 0) {
 274                 ret = RING_SPACE(drm->channel, 2);
 275                 if (ret == 0) {
 276                         if (device->info.family < NV_DEVICE_INFO_V0_FERMI) {
 277                                 BEGIN_NV04(drm->channel, NvSubSw, 0, 1);
 278                                 OUT_RING  (drm->channel, NVDRM_NVSW);
 279                         } else
 280                         if (device->info.family < NV_DEVICE_INFO_V0_KEPLER) {
 281                                 BEGIN_NVC0(drm->channel, FermiSw, 0, 1);
 282                                 OUT_RING  (drm->channel, 0x001f0000);
 283                         }
 284                 }
 285
 286                 ret = nvif_notify_init(&drm->nvsw, nouveau_flip_complete,
 287                                        false, NV04_NVSW_NTFY_UEVENT,
 288                                        NULL, 0, 0, &drm->flip);
 289                 if (ret == 0)
 290                         ret = nvif_notify_get(&drm->flip);
 291                 if (ret) {
 292                         nouveau_accel_fini(drm);
 293                         return;
 294                 }
 295         }
 296
 297         if (ret) {
 298                 NV_ERROR(drm, "failed to allocate software object, %d\n", ret);
 299                 nouveau_accel_fini(drm);
 300                 return;
 301         }
 302
 303         if (device->info.family < NV_DEVICE_INFO_V0_FERMI) {
 304                 ret = nvkm_gpuobj_new(nvxx_device(&drm->client.device), 32, 0,
 305                                       false, NULL, &drm->notify);
 306                 if (ret) {
 307                         NV_ERROR(drm, "failed to allocate notifier, %d\n", ret);
 308                         nouveau_accel_fini(drm);
 309                         return;
 310                 }
 311
 312                 ret = nvif_object_init(&drm->channel->user, NvNotify0,
 313                                        NV_DMA_IN_MEMORY,
 314                                        &(struct nv_dma_v0) {
 315                                                 .target = NV_DMA_V0_TARGET_VRAM,
 316                                                 .access = NV_DMA_V0_ACCESS_RDWR,
 317                                                 .start = drm->notify->addr,
 318                                                 .limit = drm->notify->addr + 31
 319                                        }, sizeof(struct nv_dma_v0),
 320                                        &drm->ntfy);
 321                 if (ret) {
 322                         nouveau_accel_fini(drm);
 323                         return;
 324                 }
 325         }
 326
 327
 328         nouveau_bo_move_init(drm);
 329 }
 330
 331 static int nouveau_drm_probe(struct pci_dev *pdev,
 332                              const struct pci_device_id *pent)
 333 {
 334         struct nvkm_device *device;
 335         struct apertures_struct *aper;
 336         bool boot = false;
 337         int ret;
 338
 339         if (vga_switcheroo_client_probe_defer(pdev))
 340                 return -EPROBE_DEFER;
 341
 342         /* We need to check that the chipset is supported before booting
 343          * fbdev off the hardware, as there's no way to put it back.
 344          */
 345         ret = nvkm_device_pci_new(pdev, NULL, "error", true, false, 0, &device);
 346         if (ret)
 347                 return ret;
 348
 349         nvkm_device_del(&device);
 350
 351         /* Remove conflicting drivers (vesafb, efifb etc). */
 352         aper = alloc_apertures(3);
 353         if (!aper)
 354                 return -ENOMEM;
 355
 356         aper->ranges[0].base = pci_resource_start(pdev, 1);
 357         aper->ranges[0].size = pci_resource_len(pdev, 1);
 358         aper->count = 1;
 359
 360         if (pci_resource_len(pdev, 2)) {
 361                 aper->ranges[aper->count].base = pci_resource_start(pdev, 2);
 362                 aper->ranges[aper->count].size = pci_resource_len(pdev, 2);
 363                 aper->count++;
 364         }
 365
 366         if (pci_resource_len(pdev, 3)) {
 367                 aper->ranges[aper->count].base = pci_resource_start(pdev, 3);
 368                 aper->ranges[aper->count].size = pci_resource_len(pdev, 3);
 369                 aper->count++;
 370         }
 371
 372 #ifdef CONFIG_X86
 373         boot = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
 374 #endif
 375         if (nouveau_modeset != 2)
 376                 drm_fb_helper_remove_conflicting_framebuffers(aper, "nouveaufb", boot);
 377         kfree(aper);
 378
 379         ret = nvkm_device_pci_new(pdev, nouveau_config, nouveau_debug,
 380                                   true, true, ~0ULL, &device);
 381         if (ret)
 382                 return ret;
 383
 384         pci_set_master(pdev);
 385
 386         ret = drm_get_pci_dev(pdev, pent, &driver_pci);
 387         if (ret) {
 388                 nvkm_device_del(&device);
 389                 return ret;
 390         }
 391
 392         return 0;
 393 }
 394
 395 #define PCI_CLASS_MULTIMEDIA_HD_AUDIO 0x0403
 396
 397 static void
 398 nouveau_get_hdmi_dev(struct nouveau_drm *drm)
 399 {
 400         struct pci_dev *pdev = drm->dev->pdev;
 401
 402         if (!pdev) {
 403                 NV_DEBUG(drm, "not a PCI device; no HDMI\n");
 404                 drm->hdmi_device = NULL;
 405                 return;
 406         }
 407
 408         /* subfunction one is a hdmi audio device? */
 409         drm->hdmi_device = pci_get_bus_and_slot((unsigned int)pdev->bus->number,
 410                                                 PCI_DEVFN(PCI_SLOT(pdev->devfn), 1));
 411
 412         if (!drm->hdmi_device) {
 413                 NV_DEBUG(drm, "hdmi device not found %d %d %d\n", pdev->bus->number, PCI_SLOT(pdev->devfn), 1);
 414                 return;
 415         }
 416
 417         if ((drm->hdmi_device->class >> 8) != PCI_CLASS_MULTIMEDIA_HD_AUDIO) {
 418                 NV_DEBUG(drm, "possible hdmi device not audio %d\n", drm->hdmi_device->class);
 419                 pci_dev_put(drm->hdmi_device);
 420                 drm->hdmi_device = NULL;
 421                 return;
 422         }
 423 }
 424
 425 static int
 426 nouveau_drm_load(struct drm_device *dev, unsigned long flags)
 427 {
 428         struct nouveau_drm *drm;
 429         int ret;
 430
 431         if (!(drm = kzalloc(sizeof(*drm), GFP_KERNEL)))
 432                 return -ENOMEM;
 433         dev->dev_private = drm;
 434         drm->dev = dev;
 435
 436         ret = nouveau_cli_init(drm, "DRM", &drm->client);
 437         if (ret)
 438                 return ret;
 439
 440         dev->irq_enabled = true;
 441
 442         nvxx_client(&drm->client.base)->debug =
 443                 nvkm_dbgopt(nouveau_debug, "DRM");
 444
 445         INIT_LIST_HEAD(&drm->clients);
 446         spin_lock_init(&drm->tile.lock);
 447
 448         nouveau_get_hdmi_dev(drm);
 449
 450         /* workaround an odd issue on nvc1 by disabling the device's
 451          * nosnoop capability.  hopefully won't cause issues until a
 452          * better fix is found - assuming there is one...
 453          */
 454         if (drm->client.device.info.chipset == 0xc1)
 455                 nvif_mask(&drm->client.device.object, 0x00088080, 0x00000800, 0x00000000);
 456
 457         nouveau_vga_init(drm);
 458
 459         if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
 460                 if (!nvxx_device(&drm->client.device)->mmu) {
 461                         ret = -ENOSYS;
 462                         goto fail_device;
 463                 }
 464
 465                 ret = nvkm_vm_new(nvxx_device(&drm->client.device),
 466                                   0, (1ULL << 40), 0x1000, NULL,
 467                                   &drm->client.vm);
 468                 if (ret)
 469                         goto fail_device;
 470
 471                 nvxx_client(&drm->client.base)->vm = drm->client.vm;
 472         }
 473
 474         ret = nouveau_ttm_init(drm);
 475         if (ret)
 476                 goto fail_ttm;
 477
 478         ret = nouveau_bios_init(dev);
 479         if (ret)
 480                 goto fail_bios;
 481
 482         ret = nouveau_display_create(dev);
 483         if (ret)
 484                 goto fail_dispctor;
 485
 486         if (dev->mode_config.num_crtc) {
 487                 ret = nouveau_display_init(dev);
 488                 if (ret)
 489                         goto fail_dispinit;
 490         }
 491
 492         nouveau_debugfs_init(drm);
 493         nouveau_hwmon_init(dev);
 494         nouveau_accel_init(drm);
 495         nouveau_fbcon_init(dev);
 496         nouveau_led_init(dev);
 497
 498         if (nouveau_pmops_runtime()) {
 499                 pm_runtime_use_autosuspend(dev->dev);
 500                 pm_runtime_set_autosuspend_delay(dev->dev, 5000);
 501                 pm_runtime_set_active(dev->dev);
 502                 pm_runtime_allow(dev->dev);
 503                 pm_runtime_mark_last_busy(dev->dev);
 504                 pm_runtime_put(dev->dev);
 505         } else {
 506                 /* enable polling for external displays */
 507                 drm_kms_helper_poll_enable(dev);
 508         }
 509         return 0;
 510
 511 fail_dispinit:
 512         nouveau_display_destroy(dev);
 513 fail_dispctor:
 514         nouveau_bios_takedown(dev);
 515 fail_bios:
 516         nouveau_ttm_fini(drm);
 517 fail_ttm:
 518         nouveau_vga_fini(drm);
 519 fail_device:
 520         nouveau_cli_fini(&drm->client);
 521         kfree(drm);
 522         return ret;
 523 }
 524
 525 static void
 526 nouveau_drm_unload(struct drm_device *dev)
 527 {
 528         struct nouveau_drm *drm = nouveau_drm(dev);
 529
 530         if (nouveau_pmops_runtime()) {
 531                 pm_runtime_get_sync(dev->dev);
 532                 pm_runtime_forbid(dev->dev);
 533         }
 534
 535         nouveau_led_fini(dev);
 536         nouveau_fbcon_fini(dev);
 537         nouveau_accel_fini(drm);
 538         nouveau_hwmon_fini(dev);
 539         nouveau_debugfs_fini(drm);
 540
 541         if (dev->mode_config.num_crtc)
 542                 nouveau_display_fini(dev, false);
 543         nouveau_display_destroy(dev);
 544
 545         nouveau_bios_takedown(dev);
 546
 547         nouveau_ttm_fini(drm);
 548         nouveau_vga_fini(drm);
 549
 550         if (drm->hdmi_device)
 551                 pci_dev_put(drm->hdmi_device);
 552         nouveau_cli_fini(&drm->client);
 553         kfree(drm);
 554 }
 555
 556 void
 557 nouveau_drm_device_remove(struct drm_device *dev)
 558 {
 559         struct nouveau_drm *drm = nouveau_drm(dev);
 560         struct nvkm_client *client;
 561         struct nvkm_device *device;
 562
 563         dev->irq_enabled = false;
 564         client = nvxx_client(&drm->client.base);
 565         device = nvkm_device_find(client->device);
 566         drm_put_dev(dev);
 567
 568         nvkm_device_del(&device);
 569 }
 570
 571 static void
 572 nouveau_drm_remove(struct pci_dev *pdev)
 573 {
 574         struct drm_device *dev = pci_get_drvdata(pdev);
 575
 576         nouveau_drm_device_remove(dev);
 577 }
 578
 579 static int
 580 nouveau_do_suspend(struct drm_device *dev, bool runtime)
 581 {
 582         struct nouveau_drm *drm = nouveau_drm(dev);
 583         int ret;
 584
 585         nouveau_led_suspend(dev);
 586
 587         if (dev->mode_config.num_crtc) {
 588                 NV_INFO(drm, "suspending console...\n");
 589                 nouveau_fbcon_set_suspend(dev, 1);
 590                 NV_INFO(drm, "suspending display...\n");
 591                 ret = nouveau_display_suspend(dev, runtime);
 592                 if (ret)
 593                         return ret;
 594         }
 595
 596         NV_INFO(drm, "evicting buffers...\n");
 597         ttm_bo_evict_mm(&drm->ttm.bdev, TTM_PL_VRAM);
 598
 599         NV_INFO(drm, "waiting for kernel channels to go idle...\n");
 600         if (drm->cechan) {
 601                 ret = nouveau_channel_idle(drm->cechan);
 602                 if (ret)
 603                         goto fail_display;
 604         }
 605
 606         if (drm->channel) {
 607                 ret = nouveau_channel_idle(drm->channel);
 608                 if (ret)
 609                         goto fail_display;
 610         }
 611
 612         NV_INFO(drm, "suspending fence...\n");
 613         if (drm->fence && nouveau_fence(drm)->suspend) {
 614                 if (!nouveau_fence(drm)->suspend(drm)) {
 615                         ret = -ENOMEM;
 616                         goto fail_display;
 617                 }
 618         }
 619
 620         NV_INFO(drm, "suspending object tree...\n");
 621         ret = nvif_client_suspend(&drm->client.base);
 622         if (ret)
 623                 goto fail_client;
 624
 625         return 0;
 626
 627 fail_client:
 628         if (drm->fence && nouveau_fence(drm)->resume)
 629                 nouveau_fence(drm)->resume(drm);
 630
 631 fail_display:
 632         if (dev->mode_config.num_crtc) {
 633                 NV_INFO(drm, "resuming display...\n");
 634                 nouveau_display_resume(dev, runtime);
 635         }
 636         return ret;
 637 }
 638
 639 static int
 640 nouveau_do_resume(struct drm_device *dev, bool runtime)
 641 {
 642         struct nouveau_drm *drm = nouveau_drm(dev);
 643
 644         NV_INFO(drm, "resuming object tree...\n");
 645         nvif_client_resume(&drm->client.base);
 646
 647         NV_INFO(drm, "resuming fence...\n");
 648         if (drm->fence && nouveau_fence(drm)->resume)
 649                 nouveau_fence(drm)->resume(drm);
 650
 651         nouveau_run_vbios_init(dev);
 652
 653         if (dev->mode_config.num_crtc) {
 654                 NV_INFO(drm, "resuming display...\n");
 655                 nouveau_display_resume(dev, runtime);
 656                 NV_INFO(drm, "resuming console...\n");
 657                 nouveau_fbcon_set_suspend(dev, 0);
 658         }
 659
 660         nouveau_led_resume(dev);
 661
 662         return 0;
 663 }
 664
 665 int
 666 nouveau_pmops_suspend(struct device *dev)
 667 {
 668         struct pci_dev *pdev = to_pci_dev(dev);
 669         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 670         int ret;
 671
 672         if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF ||
 673             drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF)
 674                 return 0;
 675
 676         ret = nouveau_do_suspend(drm_dev, false);
 677         if (ret)
 678                 return ret;
 679
 680         pci_save_state(pdev);
 681         pci_disable_device(pdev);
 682         pci_set_power_state(pdev, PCI_D3hot);
 683         udelay(200);
 684         return 0;
 685 }
 686
 687 int
 688 nouveau_pmops_resume(struct device *dev)
 689 {
 690         struct pci_dev *pdev = to_pci_dev(dev);
 691         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 692         int ret;
 693
 694         if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF ||
 695             drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF)
 696                 return 0;
 697
 698         pci_set_power_state(pdev, PCI_D0);
 699         pci_restore_state(pdev);
 700         ret = pci_enable_device(pdev);
 701         if (ret)
 702                 return ret;
 703         pci_set_master(pdev);
 704
 705         ret = nouveau_do_resume(drm_dev, false);
 706
 707         /* Monitors may have been connected / disconnected during suspend */
 708         schedule_work(&nouveau_drm(drm_dev)->hpd_work);
 709
 710         return ret;
 711 }
 712
 713 static int
 714 nouveau_pmops_freeze(struct device *dev)
 715 {
 716         struct pci_dev *pdev = to_pci_dev(dev);
 717         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 718         return nouveau_do_suspend(drm_dev, false);
 719 }
 720
 721 static int
 722 nouveau_pmops_thaw(struct device *dev)
 723 {
 724         struct pci_dev *pdev = to_pci_dev(dev);
 725         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 726         return nouveau_do_resume(drm_dev, false);
 727 }
 728
 729 bool
 730 nouveau_pmops_runtime()
 731 {
 732         if (nouveau_runtime_pm == -1)
 733                 return nouveau_is_optimus() || nouveau_is_v1_dsm();
 734         return nouveau_runtime_pm == 1;
 735 }
 736
 737 static int
 738 nouveau_pmops_runtime_suspend(struct device *dev)
 739 {
 740         struct pci_dev *pdev = to_pci_dev(dev);
 741         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 742         int ret;
 743
 744         if (!nouveau_pmops_runtime()) {
 745                 pm_runtime_forbid(dev);
 746                 return -EBUSY;
 747         }
 748
 749         drm_kms_helper_poll_disable(drm_dev);
 750         vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_OFF);
 751         nouveau_switcheroo_optimus_dsm();
 752         ret = nouveau_do_suspend(drm_dev, true);
 753         pci_save_state(pdev);
 754         pci_disable_device(pdev);
 755         pci_ignore_hotplug(pdev);
 756         pci_set_power_state(pdev, PCI_D3cold);
 757         drm_dev->switch_power_state = DRM_SWITCH_POWER_DYNAMIC_OFF;
 758         return ret;
 759 }
 760
 761 static int
 762 nouveau_pmops_runtime_resume(struct device *dev)
 763 {
 764         struct pci_dev *pdev = to_pci_dev(dev);
 765         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 766         struct nvif_device *device = &nouveau_drm(drm_dev)->client.device;
 767         int ret;
 768
 769         if (!nouveau_pmops_runtime()) {
 770                 pm_runtime_forbid(dev);
 771                 return -EBUSY;
 772         }
 773
 774         pci_set_power_state(pdev, PCI_D0);
 775         pci_restore_state(pdev);
 776         ret = pci_enable_device(pdev);
 777         if (ret)
 778                 return ret;
 779         pci_set_master(pdev);
 780
 781         ret = nouveau_do_resume(drm_dev, true);
 782
 783         /* do magic */
 784         nvif_mask(&device->object, 0x088488, (1 << 25), (1 << 25));
 785         vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_ON);
 786         drm_dev->switch_power_state = DRM_SWITCH_POWER_ON;
 787
 788         /* Monitors may have been connected / disconnected during suspend */
 789         schedule_work(&nouveau_drm(drm_dev)->hpd_work);
 790
 791         return ret;
 792 }
 793
 794 static int
 795 nouveau_pmops_runtime_idle(struct device *dev)
 796 {
 797         struct pci_dev *pdev = to_pci_dev(dev);
 798         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 799         struct nouveau_drm *drm = nouveau_drm(drm_dev);
 800         struct drm_crtc *crtc;
 801
 802         if (!nouveau_pmops_runtime()) {
 803                 pm_runtime_forbid(dev);
 804                 return -EBUSY;
 805         }
 806
 807         /* if we have a hdmi audio device - make sure it has a driver loaded */
 808         if (drm->hdmi_device) {
 809                 if (!drm->hdmi_device->driver) {
 810                         DRM_DEBUG_DRIVER("failing to power off - no HDMI audio driver loaded\n");
 811                         pm_runtime_mark_last_busy(dev);
 812                         return -EBUSY;
 813                 }
 814         }
 815
 816         list_for_each_entry(crtc, &drm->dev->mode_config.crtc_list, head) {
 817                 if (crtc->enabled) {
 818                         DRM_DEBUG_DRIVER("failing to power off - crtc active\n");
 819                         return -EBUSY;
 820                 }
 821         }
 822         pm_runtime_mark_last_busy(dev);
 823         pm_runtime_autosuspend(dev);
 824         /* we don't want the main rpm_idle to call suspend - we want to autosuspend */
 825         return 1;
 826 }
 827
 828 static int
 829 nouveau_drm_open(struct drm_device *dev, struct drm_file *fpriv)
 830 {
 831         struct nouveau_drm *drm = nouveau_drm(dev);
 832         struct nouveau_cli *cli;
 833         char name[32], tmpname[TASK_COMM_LEN];
 834         int ret;
 835
 836         /* need to bring up power immediately if opening device */
 837         ret = pm_runtime_get_sync(dev->dev);
 838         if (ret < 0 && ret != -EACCES)
 839                 return ret;
 840
 841         get_task_comm(tmpname, current);
 842         snprintf(name, sizeof(name), "%s[%d]", tmpname, pid_nr(fpriv->pid));
 843
 844         if (!(cli = kzalloc(sizeof(*cli), GFP_KERNEL)))
 845                 return ret;
 846
 847         ret = nouveau_cli_init(drm, name, cli);
 848         if (ret)
 849                 goto done;
 850
 851         cli->base.super = false;
 852
 853         if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
 854                 ret = nvkm_vm_new(nvxx_device(&drm->client.device), 0,
 855                                   (1ULL << 40), 0x1000, NULL, &cli->vm);
 856                 if (ret)
 857                         goto done;
 858
 859                 nvxx_client(&cli->base)->vm = cli->vm;
 860         }
 861
 862         fpriv->driver_priv = cli;
 863
 864         mutex_lock(&drm->client.mutex);
 865         list_add(&cli->head, &drm->clients);
 866         mutex_unlock(&drm->client.mutex);
 867
 868 done:
 869         if (ret && cli) {
 870                 nouveau_cli_fini(cli);
 871                 kfree(cli);
 872         }
 873
 874         pm_runtime_mark_last_busy(dev->dev);
 875         pm_runtime_put_autosuspend(dev->dev);
 876         return ret;
 877 }
 878
 879 static void
 880 nouveau_drm_preclose(struct drm_device *dev, struct drm_file *fpriv)
 881 {
 882         struct nouveau_cli *cli = nouveau_cli(fpriv);
 883         struct nouveau_drm *drm = nouveau_drm(dev);
 884
 885         pm_runtime_get_sync(dev->dev);
 886
 887         mutex_lock(&cli->mutex);
 888         if (cli->abi16)
 889                 nouveau_abi16_fini(cli->abi16);
 890         mutex_unlock(&cli->mutex);
 891
 892         mutex_lock(&drm->client.mutex);
 893         list_del(&cli->head);
 894         mutex_unlock(&drm->client.mutex);
 895
 896 }
 897
 898 static void
 899 nouveau_drm_postclose(struct drm_device *dev, struct drm_file *fpriv)
 900 {
 901         struct nouveau_cli *cli = nouveau_cli(fpriv);
 902         nouveau_cli_fini(cli);
 903         kfree(cli);
 904         pm_runtime_mark_last_busy(dev->dev);
 905         pm_runtime_put_autosuspend(dev->dev);
 906 }
 907
 908 static const struct drm_ioctl_desc
 909 nouveau_ioctls[] = {
 910         DRM_IOCTL_DEF_DRV(NOUVEAU_GETPARAM, nouveau_abi16_ioctl_getparam, DRM_AUTH|DRM_RENDER_ALLOW),
 911         DRM_IOCTL_DEF_DRV(NOUVEAU_SETPARAM, nouveau_abi16_ioctl_setparam, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
 912         DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_ALLOC, nouveau_abi16_ioctl_channel_alloc, DRM_AUTH|DRM_RENDER_ALLOW),
 913         DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_FREE, nouveau_abi16_ioctl_channel_free, DRM_AUTH|DRM_RENDER_ALLOW),
 914         DRM_IOCTL_DEF_DRV(NOUVEAU_GROBJ_ALLOC, nouveau_abi16_ioctl_grobj_alloc, DRM_AUTH|DRM_RENDER_ALLOW),
 915         DRM_IOCTL_DEF_DRV(NOUVEAU_NOTIFIEROBJ_ALLOC, nouveau_abi16_ioctl_notifierobj_alloc, DRM_AUTH|DRM_RENDER_ALLOW),
 916         DRM_IOCTL_DEF_DRV(NOUVEAU_GPUOBJ_FREE, nouveau_abi16_ioctl_gpuobj_free, DRM_AUTH|DRM_RENDER_ALLOW),
 917         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_NEW, nouveau_gem_ioctl_new, DRM_AUTH|DRM_RENDER_ALLOW),
 918         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_PUSHBUF, nouveau_gem_ioctl_pushbuf, DRM_AUTH|DRM_RENDER_ALLOW),
 919         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_PREP, nouveau_gem_ioctl_cpu_prep, DRM_AUTH|DRM_RENDER_ALLOW),
 920         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_FINI, nouveau_gem_ioctl_cpu_fini, DRM_AUTH|DRM_RENDER_ALLOW),
 921         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_INFO, nouveau_gem_ioctl_info, DRM_AUTH|DRM_RENDER_ALLOW),
 922 };
 923
 924 long
 925 nouveau_drm_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 926 {
 927         struct drm_file *filp = file->private_data;
 928         struct drm_device *dev = filp->minor->dev;
 929         long ret;
 930
 931         ret = pm_runtime_get_sync(dev->dev);
 932         if (ret < 0 && ret != -EACCES)
 933                 return ret;
 934
 935         switch (_IOC_NR(cmd) - DRM_COMMAND_BASE) {
 936         case DRM_NOUVEAU_NVIF:
 937                 ret = usif_ioctl(filp, (void __user *)arg, _IOC_SIZE(cmd));
 938                 break;
 939         default:
 940                 ret = drm_ioctl(file, cmd, arg);
 941                 break;
 942         }
 943
 944         pm_runtime_mark_last_busy(dev->dev);
 945         pm_runtime_put_autosuspend(dev->dev);
 946         return ret;
 947 }
 948
 949 static const struct file_operations
 950 nouveau_driver_fops = {
 951         .owner = THIS_MODULE,
 952         .open = drm_open,
 953         .release = drm_release,
 954         .unlocked_ioctl = nouveau_drm_ioctl,
 955         .mmap = nouveau_ttm_mmap,
 956         .poll = drm_poll,
 957         .read = drm_read,
 958 #if defined(CONFIG_COMPAT)
 959         .compat_ioctl = nouveau_compat_ioctl,
 960 #endif
 961         .llseek = noop_llseek,
 962 };
 963
 964 static struct drm_driver
 965 driver_stub = {
 966         .driver_features =
 967                 DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME | DRIVER_RENDER |
 968                 DRIVER_KMS_LEGACY_CONTEXT,
 969
 970         .load = nouveau_drm_load,
 971         .unload = nouveau_drm_unload,
 972         .open = nouveau_drm_open,
 973         .preclose = nouveau_drm_preclose,
 974         .postclose = nouveau_drm_postclose,
 975         .lastclose = nouveau_vga_lastclose,
 976
 977 #if defined(CONFIG_DEBUG_FS)
 978         .debugfs_init = nouveau_drm_debugfs_init,
 979 #endif
 980
 981         .enable_vblank = nouveau_display_vblank_enable,
 982         .disable_vblank = nouveau_display_vblank_disable,
 983         .get_scanout_position = nouveau_display_scanoutpos,
 984         .get_vblank_timestamp = nouveau_display_vblstamp,
 985
 986         .ioctls = nouveau_ioctls,
 987         .num_ioctls = ARRAY_SIZE(nouveau_ioctls),
 988         .fops = &nouveau_driver_fops,
 989
 990         .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
 991         .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
 992         .gem_prime_export = drm_gem_prime_export,
 993         .gem_prime_import = drm_gem_prime_import,
 994         .gem_prime_pin = nouveau_gem_prime_pin,
 995         .gem_prime_res_obj = nouveau_gem_prime_res_obj,
 996         .gem_prime_unpin = nouveau_gem_prime_unpin,
 997         .gem_prime_get_sg_table = nouveau_gem_prime_get_sg_table,
 998         .gem_prime_import_sg_table = nouveau_gem_prime_import_sg_table,
 999         .gem_prime_vmap = nouveau_gem_prime_vmap,
1000         .gem_prime_vunmap = nouveau_gem_prime_vunmap,
1001
1002         .gem_free_object_unlocked = nouveau_gem_object_del,
1003         .gem_open_object = nouveau_gem_object_open,
1004         .gem_close_object = nouveau_gem_object_close,
1005
1006         .dumb_create = nouveau_display_dumb_create,
1007         .dumb_map_offset = nouveau_display_dumb_map_offset,
1008         .dumb_destroy = drm_gem_dumb_destroy,
1009
1010         .name = DRIVER_NAME,
1011         .desc = DRIVER_DESC,
1012 #ifdef GIT_REVISION
1013         .date = GIT_REVISION,
1014 #else
1015         .date = DRIVER_DATE,
1016 #endif
1017         .major = DRIVER_MAJOR,
1018         .minor = DRIVER_MINOR,
1019         .patchlevel = DRIVER_PATCHLEVEL,
1020 };
1021
1022 static struct pci_device_id
1023 nouveau_drm_pci_table[] = {
1024         {
1025                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID),
1026                 .class = PCI_BASE_CLASS_DISPLAY << 16,
1027                 .class_mask  = 0xff << 16,
1028         },
1029         {
1030                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA_SGS, PCI_ANY_ID),
1031                 .class = PCI_BASE_CLASS_DISPLAY << 16,
1032                 .class_mask  = 0xff << 16,
1033         },
1034         {}
1035 };
1036
1037 static void nouveau_display_options(void)
1038 {
1039         DRM_DEBUG_DRIVER("Loading Nouveau with parameters:\n");
1040
1041         DRM_DEBUG_DRIVER("... tv_disable   : %d\n", nouveau_tv_disable);
1042         DRM_DEBUG_DRIVER("... ignorelid    : %d\n", nouveau_ignorelid);
1043         DRM_DEBUG_DRIVER("... duallink     : %d\n", nouveau_duallink);
1044         DRM_DEBUG_DRIVER("... nofbaccel    : %d\n", nouveau_nofbaccel);
1045         DRM_DEBUG_DRIVER("... config       : %s\n", nouveau_config);
1046         DRM_DEBUG_DRIVER("... debug        : %s\n", nouveau_debug);
1047         DRM_DEBUG_DRIVER("... noaccel      : %d\n", nouveau_noaccel);
1048         DRM_DEBUG_DRIVER("... modeset      : %d\n", nouveau_modeset);
1049         DRM_DEBUG_DRIVER("... runpm        : %d\n", nouveau_runtime_pm);
1050         DRM_DEBUG_DRIVER("... vram_pushbuf : %d\n", nouveau_vram_pushbuf);
1051         DRM_DEBUG_DRIVER("... hdmimhz      : %d\n", nouveau_hdmimhz);
1052 }
1053
1054 static const struct dev_pm_ops nouveau_pm_ops = {
1055         .suspend = nouveau_pmops_suspend,
1056         .resume = nouveau_pmops_resume,
1057         .freeze = nouveau_pmops_freeze,
1058         .thaw = nouveau_pmops_thaw,
1059         .poweroff = nouveau_pmops_freeze,
1060         .restore = nouveau_pmops_resume,
1061         .runtime_suspend = nouveau_pmops_runtime_suspend,
1062         .runtime_resume = nouveau_pmops_runtime_resume,
1063         .runtime_idle = nouveau_pmops_runtime_idle,
1064 };
1065
1066 static struct pci_driver
1067 nouveau_drm_pci_driver = {
1068         .name = "nouveau",
1069         .id_table = nouveau_drm_pci_table,
1070         .probe = nouveau_drm_probe,
1071         .remove = nouveau_drm_remove,
1072         .driver.pm = &nouveau_pm_ops,
1073 };
1074
1075 struct drm_device *
1076 nouveau_platform_device_create(const struct nvkm_device_tegra_func *func,
1077                                struct platform_device *pdev,
1078                                struct nvkm_device **pdevice)
1079 {
1080         struct drm_device *drm;
1081         int err;
1082
1083         err = nvkm_device_tegra_new(func, pdev, nouveau_config, nouveau_debug,
1084                                     true, true, ~0ULL, pdevice);
1085         if (err)
1086                 goto err_free;
1087
1088         drm = drm_dev_alloc(&driver_platform, &pdev->dev);
1089         if (IS_ERR(drm)) {
1090                 err = PTR_ERR(drm);
1091                 goto err_free;
1092         }
1093
1094         platform_set_drvdata(pdev, drm);
1095
1096         return drm;
1097
1098 err_free:
1099         nvkm_device_del(pdevice);
1100
1101         return ERR_PTR(err);
1102 }
1103
1104 static int __init
1105 nouveau_drm_init(void)
1106 {
1107         driver_pci = driver_stub;
1108         driver_pci.set_busid = drm_pci_set_busid;
1109         driver_platform = driver_stub;
1110
1111         nouveau_display_options();
1112
1113         if (nouveau_modeset == -1) {
1114                 if (vgacon_text_force())
1115                         nouveau_modeset = 0;
1116         }
1117
1118         if (!nouveau_modeset)
1119                 return 0;
1120
1121 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER
1122         platform_driver_register(&nouveau_platform_driver);
1123 #endif
1124
1125         nouveau_register_dsm_handler();
1126         nouveau_backlight_ctor();
1127         return drm_pci_init(&driver_pci, &nouveau_drm_pci_driver);
1128 }
1129
1130 static void __exit
1131 nouveau_drm_exit(void)
1132 {
1133         if (!nouveau_modeset)
1134                 return;
1135
1136         drm_pci_exit(&driver_pci, &nouveau_drm_pci_driver);
1137         nouveau_backlight_dtor();
1138         nouveau_unregister_dsm_handler();
1139
1140 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER
1141         platform_driver_unregister(&nouveau_platform_driver);
1142 #endif
1143 }
1144
1145 module_init(nouveau_drm_init);
1146 module_exit(nouveau_drm_exit);
1147
1148 MODULE_DEVICE_TABLE(pci, nouveau_drm_pci_table);
1149 MODULE_AUTHOR(DRIVER_AUTHOR);
1150 MODULE_DESCRIPTION(DRIVER_DESC);
1151 MODULE_LICENSE("GPL and additional rights");