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 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(dev->platformdev);
 112 }
 113
 114 static int
 115 nouveau_cli_create(struct drm_device *dev, const char *sname,
 116                    int size, void **pcli)
 117 {
 118         struct nouveau_cli *cli = *pcli = kzalloc(size, GFP_KERNEL);
 119         int ret;
 120         if (cli) {
 121                 snprintf(cli->name, sizeof(cli->name), "%s", sname);
 122                 cli->dev = dev;
 123
 124                 ret = nvif_driver_init(NULL, nouveau_config, nouveau_debug,
 125                                        cli->name, nouveau_name(dev),
 126                                        &cli->base);
 127                 if (ret == 0) {
 128                         mutex_init(&cli->mutex);
 129                         usif_client_init(cli);
 130                 }
 131                 return ret;
 132         }
 133         return -ENOMEM;
 134 }
 135
 136 static void
 137 nouveau_cli_destroy(struct nouveau_cli *cli)
 138 {
 139         nvkm_vm_ref(NULL, &nvxx_client(&cli->base)->vm, NULL);
 140         nvif_client_fini(&cli->base);
 141         usif_client_fini(cli);
 142         kfree(cli);
 143 }
 144
 145 static void
 146 nouveau_accel_fini(struct nouveau_drm *drm)
 147 {
 148         nouveau_channel_idle(drm->channel);
 149         nvif_object_fini(&drm->ntfy);
 150         nvkm_gpuobj_del(&drm->notify);
 151         nvif_notify_fini(&drm->flip);
 152         nvif_object_fini(&drm->nvsw);
 153         nouveau_channel_del(&drm->channel);
 154
 155         nouveau_channel_idle(drm->cechan);
 156         nvif_object_fini(&drm->ttm.copy);
 157         nouveau_channel_del(&drm->cechan);
 158
 159         if (drm->fence)
 160                 nouveau_fence(drm)->dtor(drm);
 161 }
 162
 163 static void
 164 nouveau_accel_init(struct nouveau_drm *drm)
 165 {
 166         struct nvif_device *device = &drm->device;
 167         struct nvif_sclass *sclass;
 168         u32 arg0, arg1;
 169         int ret, i, n;
 170
 171         if (nouveau_noaccel)
 172                 return;
 173
 174         /* initialise synchronisation routines */
 175         /*XXX: this is crap, but the fence/channel stuff is a little
 176          *     backwards in some places.  this will be fixed.
 177          */
 178         ret = n = nvif_object_sclass_get(&device->object, &sclass);
 179         if (ret < 0)
 180                 return;
 181
 182         for (ret = -ENOSYS, i = 0; i < n; i++) {
 183                 switch (sclass[i].oclass) {
 184                 case NV03_CHANNEL_DMA:
 185                         ret = nv04_fence_create(drm);
 186                         break;
 187                 case NV10_CHANNEL_DMA:
 188                         ret = nv10_fence_create(drm);
 189                         break;
 190                 case NV17_CHANNEL_DMA:
 191                 case NV40_CHANNEL_DMA:
 192                         ret = nv17_fence_create(drm);
 193                         break;
 194                 case NV50_CHANNEL_GPFIFO:
 195                         ret = nv50_fence_create(drm);
 196                         break;
 197                 case G82_CHANNEL_GPFIFO:
 198                         ret = nv84_fence_create(drm);
 199                         break;
 200                 case FERMI_CHANNEL_GPFIFO:
 201                 case KEPLER_CHANNEL_GPFIFO_A:
 202                 case KEPLER_CHANNEL_GPFIFO_B:
 203                 case MAXWELL_CHANNEL_GPFIFO_A:
 204                 case PASCAL_CHANNEL_GPFIFO_A:
 205                         ret = nvc0_fence_create(drm);
 206                         break;
 207                 default:
 208                         break;
 209                 }
 210         }
 211
 212         nvif_object_sclass_put(&sclass);
 213         if (ret) {
 214                 NV_ERROR(drm, "failed to initialise sync subsystem, %d\n", ret);
 215                 nouveau_accel_fini(drm);
 216                 return;
 217         }
 218
 219         if (device->info.family >= NV_DEVICE_INFO_V0_KEPLER) {
 220                 ret = nouveau_channel_new(drm, &drm->device,
 221                                           NVA06F_V0_ENGINE_CE0 |
 222                                           NVA06F_V0_ENGINE_CE1,
 223                                           0, &drm->cechan);
 224                 if (ret)
 225                         NV_ERROR(drm, "failed to create ce channel, %d\n", ret);
 226
 227                 arg0 = NVA06F_V0_ENGINE_GR;
 228                 arg1 = 1;
 229         } else
 230         if (device->info.chipset >= 0xa3 &&
 231             device->info.chipset != 0xaa &&
 232             device->info.chipset != 0xac) {
 233                 ret = nouveau_channel_new(drm, &drm->device,
 234                                           NvDmaFB, NvDmaTT, &drm->cechan);
 235                 if (ret)
 236                         NV_ERROR(drm, "failed to create ce channel, %d\n", ret);
 237
 238                 arg0 = NvDmaFB;
 239                 arg1 = NvDmaTT;
 240         } else {
 241                 arg0 = NvDmaFB;
 242                 arg1 = NvDmaTT;
 243         }
 244
 245         ret = nouveau_channel_new(drm, &drm->device, arg0, arg1, &drm->channel);
 246         if (ret) {
 247                 NV_ERROR(drm, "failed to create kernel channel, %d\n", ret);
 248                 nouveau_accel_fini(drm);
 249                 return;
 250         }
 251
 252         ret = nvif_object_init(&drm->channel->user, NVDRM_NVSW,
 253                                nouveau_abi16_swclass(drm), NULL, 0, &drm->nvsw);
 254         if (ret == 0) {
 255                 ret = RING_SPACE(drm->channel, 2);
 256                 if (ret == 0) {
 257                         if (device->info.family < NV_DEVICE_INFO_V0_FERMI) {
 258                                 BEGIN_NV04(drm->channel, NvSubSw, 0, 1);
 259                                 OUT_RING  (drm->channel, NVDRM_NVSW);
 260                         } else
 261                         if (device->info.family < NV_DEVICE_INFO_V0_KEPLER) {
 262                                 BEGIN_NVC0(drm->channel, FermiSw, 0, 1);
 263                                 OUT_RING  (drm->channel, 0x001f0000);
 264                         }
 265                 }
 266
 267                 ret = nvif_notify_init(&drm->nvsw, nouveau_flip_complete,
 268                                        false, NV04_NVSW_NTFY_UEVENT,
 269                                        NULL, 0, 0, &drm->flip);
 270                 if (ret == 0)
 271                         ret = nvif_notify_get(&drm->flip);
 272                 if (ret) {
 273                         nouveau_accel_fini(drm);
 274                         return;
 275                 }
 276         }
 277
 278         if (ret) {
 279                 NV_ERROR(drm, "failed to allocate software object, %d\n", ret);
 280                 nouveau_accel_fini(drm);
 281                 return;
 282         }
 283
 284         if (device->info.family < NV_DEVICE_INFO_V0_FERMI) {
 285                 ret = nvkm_gpuobj_new(nvxx_device(&drm->device), 32, 0, false,
 286                                       NULL, &drm->notify);
 287                 if (ret) {
 288                         NV_ERROR(drm, "failed to allocate notifier, %d\n", ret);
 289                         nouveau_accel_fini(drm);
 290                         return;
 291                 }
 292
 293                 ret = nvif_object_init(&drm->channel->user, NvNotify0,
 294                                        NV_DMA_IN_MEMORY,
 295                                        &(struct nv_dma_v0) {
 296                                                 .target = NV_DMA_V0_TARGET_VRAM,
 297                                                 .access = NV_DMA_V0_ACCESS_RDWR,
 298                                                 .start = drm->notify->addr,
 299                                                 .limit = drm->notify->addr + 31
 300                                        }, sizeof(struct nv_dma_v0),
 301                                        &drm->ntfy);
 302                 if (ret) {
 303                         nouveau_accel_fini(drm);
 304                         return;
 305                 }
 306         }
 307
 308
 309         nouveau_bo_move_init(drm);
 310 }
 311
 312 static int nouveau_drm_probe(struct pci_dev *pdev,
 313                              const struct pci_device_id *pent)
 314 {
 315         struct nvkm_device *device;
 316         struct apertures_struct *aper;
 317         bool boot = false;
 318         int ret;
 319
 320         if (vga_switcheroo_client_probe_defer(pdev))
 321                 return -EPROBE_DEFER;
 322
 323         /* We need to check that the chipset is supported before booting
 324          * fbdev off the hardware, as there's no way to put it back.
 325          */
 326         ret = nvkm_device_pci_new(pdev, NULL, "error", true, false, 0, &device);
 327         if (ret)
 328                 return ret;
 329
 330         nvkm_device_del(&device);
 331
 332         /* Remove conflicting drivers (vesafb, efifb etc). */
 333         aper = alloc_apertures(3);
 334         if (!aper)
 335                 return -ENOMEM;
 336
 337         aper->ranges[0].base = pci_resource_start(pdev, 1);
 338         aper->ranges[0].size = pci_resource_len(pdev, 1);
 339         aper->count = 1;
 340
 341         if (pci_resource_len(pdev, 2)) {
 342                 aper->ranges[aper->count].base = pci_resource_start(pdev, 2);
 343                 aper->ranges[aper->count].size = pci_resource_len(pdev, 2);
 344                 aper->count++;
 345         }
 346
 347         if (pci_resource_len(pdev, 3)) {
 348                 aper->ranges[aper->count].base = pci_resource_start(pdev, 3);
 349                 aper->ranges[aper->count].size = pci_resource_len(pdev, 3);
 350                 aper->count++;
 351         }
 352
 353 #ifdef CONFIG_X86
 354         boot = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
 355 #endif
 356         if (nouveau_modeset != 2)
 357                 drm_fb_helper_remove_conflicting_framebuffers(aper, "nouveaufb", boot);
 358         kfree(aper);
 359
 360         ret = nvkm_device_pci_new(pdev, nouveau_config, nouveau_debug,
 361                                   true, true, ~0ULL, &device);
 362         if (ret)
 363                 return ret;
 364
 365         pci_set_master(pdev);
 366
 367         ret = drm_get_pci_dev(pdev, pent, &driver_pci);
 368         if (ret) {
 369                 nvkm_device_del(&device);
 370                 return ret;
 371         }
 372
 373         return 0;
 374 }
 375
 376 #define PCI_CLASS_MULTIMEDIA_HD_AUDIO 0x0403
 377
 378 static void
 379 nouveau_get_hdmi_dev(struct nouveau_drm *drm)
 380 {
 381         struct pci_dev *pdev = drm->dev->pdev;
 382
 383         if (!pdev) {
 384                 NV_DEBUG(drm, "not a PCI device; no HDMI\n");
 385                 drm->hdmi_device = NULL;
 386                 return;
 387         }
 388
 389         /* subfunction one is a hdmi audio device? */
 390         drm->hdmi_device = pci_get_bus_and_slot((unsigned int)pdev->bus->number,
 391                                                 PCI_DEVFN(PCI_SLOT(pdev->devfn), 1));
 392
 393         if (!drm->hdmi_device) {
 394                 NV_DEBUG(drm, "hdmi device not found %d %d %d\n", pdev->bus->number, PCI_SLOT(pdev->devfn), 1);
 395                 return;
 396         }
 397
 398         if ((drm->hdmi_device->class >> 8) != PCI_CLASS_MULTIMEDIA_HD_AUDIO) {
 399                 NV_DEBUG(drm, "possible hdmi device not audio %d\n", drm->hdmi_device->class);
 400                 pci_dev_put(drm->hdmi_device);
 401                 drm->hdmi_device = NULL;
 402                 return;
 403         }
 404 }
 405
 406 static int
 407 nouveau_drm_load(struct drm_device *dev, unsigned long flags)
 408 {
 409         struct nouveau_drm *drm;
 410         int ret;
 411
 412         ret = nouveau_cli_create(dev, "DRM", sizeof(*drm), (void **)&drm);
 413         if (ret)
 414                 return ret;
 415
 416         dev->dev_private = drm;
 417         drm->dev = dev;
 418         nvxx_client(&drm->client.base)->debug =
 419                 nvkm_dbgopt(nouveau_debug, "DRM");
 420
 421         INIT_LIST_HEAD(&drm->clients);
 422         spin_lock_init(&drm->tile.lock);
 423
 424         nouveau_get_hdmi_dev(drm);
 425
 426         ret = nvif_device_init(&drm->client.base.object, 0, NV_DEVICE,
 427                                &(struct nv_device_v0) {
 428                                         .device = ~0,
 429                                }, sizeof(struct nv_device_v0),
 430                                &drm->device);
 431         if (ret)
 432                 goto fail_device;
 433
 434         dev->irq_enabled = true;
 435
 436         /* workaround an odd issue on nvc1 by disabling the device's
 437          * nosnoop capability.  hopefully won't cause issues until a
 438          * better fix is found - assuming there is one...
 439          */
 440         if (drm->device.info.chipset == 0xc1)
 441                 nvif_mask(&drm->device.object, 0x00088080, 0x00000800, 0x00000000);
 442
 443         nouveau_vga_init(drm);
 444
 445         if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
 446                 if (!nvxx_device(&drm->device)->mmu) {
 447                         ret = -ENOSYS;
 448                         goto fail_device;
 449                 }
 450
 451                 ret = nvkm_vm_new(nvxx_device(&drm->device), 0, (1ULL << 40),
 452                                   0x1000, NULL, &drm->client.vm);
 453                 if (ret)
 454                         goto fail_device;
 455
 456                 nvxx_client(&drm->client.base)->vm = drm->client.vm;
 457         }
 458
 459         ret = nouveau_ttm_init(drm);
 460         if (ret)
 461                 goto fail_ttm;
 462
 463         ret = nouveau_bios_init(dev);
 464         if (ret)
 465                 goto fail_bios;
 466
 467         ret = nouveau_display_create(dev);
 468         if (ret)
 469                 goto fail_dispctor;
 470
 471         if (dev->mode_config.num_crtc) {
 472                 ret = nouveau_display_init(dev);
 473                 if (ret)
 474                         goto fail_dispinit;
 475         }
 476
 477         nouveau_debugfs_init(drm);
 478         nouveau_hwmon_init(dev);
 479         nouveau_accel_init(drm);
 480         nouveau_fbcon_init(dev);
 481         nouveau_led_init(dev);
 482
 483         if (nouveau_runtime_pm != 0) {
 484                 pm_runtime_use_autosuspend(dev->dev);
 485                 pm_runtime_set_autosuspend_delay(dev->dev, 5000);
 486                 pm_runtime_set_active(dev->dev);
 487                 pm_runtime_allow(dev->dev);
 488                 pm_runtime_mark_last_busy(dev->dev);
 489                 pm_runtime_put(dev->dev);
 490         }
 491         return 0;
 492
 493 fail_dispinit:
 494         nouveau_display_destroy(dev);
 495 fail_dispctor:
 496         nouveau_bios_takedown(dev);
 497 fail_bios:
 498         nouveau_ttm_fini(drm);
 499 fail_ttm:
 500         nouveau_vga_fini(drm);
 501 fail_device:
 502         nvif_device_fini(&drm->device);
 503         nouveau_cli_destroy(&drm->client);
 504         return ret;
 505 }
 506
 507 static void
 508 nouveau_drm_unload(struct drm_device *dev)
 509 {
 510         struct nouveau_drm *drm = nouveau_drm(dev);
 511
 512         if (nouveau_runtime_pm != 0) {
 513                 pm_runtime_get_sync(dev->dev);
 514                 pm_runtime_forbid(dev->dev);
 515         }
 516
 517         nouveau_led_fini(dev);
 518         nouveau_fbcon_fini(dev);
 519         nouveau_accel_fini(drm);
 520         nouveau_hwmon_fini(dev);
 521         nouveau_debugfs_fini(drm);
 522
 523         if (dev->mode_config.num_crtc)
 524                 nouveau_display_fini(dev, false);
 525         nouveau_display_destroy(dev);
 526
 527         nouveau_bios_takedown(dev);
 528
 529         nouveau_ttm_fini(drm);
 530         nouveau_vga_fini(drm);
 531
 532         nvif_device_fini(&drm->device);
 533         if (drm->hdmi_device)
 534                 pci_dev_put(drm->hdmi_device);
 535         nouveau_cli_destroy(&drm->client);
 536 }
 537
 538 void
 539 nouveau_drm_device_remove(struct drm_device *dev)
 540 {
 541         struct nouveau_drm *drm = nouveau_drm(dev);
 542         struct nvkm_client *client;
 543         struct nvkm_device *device;
 544
 545         dev->irq_enabled = false;
 546         client = nvxx_client(&drm->client.base);
 547         device = nvkm_device_find(client->device);
 548         drm_put_dev(dev);
 549
 550         nvkm_device_del(&device);
 551 }
 552
 553 static void
 554 nouveau_drm_remove(struct pci_dev *pdev)
 555 {
 556         struct drm_device *dev = pci_get_drvdata(pdev);
 557
 558         nouveau_drm_device_remove(dev);
 559 }
 560
 561 static int
 562 nouveau_do_suspend(struct drm_device *dev, bool runtime)
 563 {
 564         struct nouveau_drm *drm = nouveau_drm(dev);
 565         struct nouveau_cli *cli;
 566         int ret;
 567
 568         nouveau_led_suspend(dev);
 569
 570         if (dev->mode_config.num_crtc) {
 571                 NV_INFO(drm, "suspending console...\n");
 572                 nouveau_fbcon_set_suspend(dev, 1);
 573                 NV_INFO(drm, "suspending display...\n");
 574                 ret = nouveau_display_suspend(dev, runtime);
 575                 if (ret)
 576                         return ret;
 577         }
 578
 579         NV_INFO(drm, "evicting buffers...\n");
 580         ttm_bo_evict_mm(&drm->ttm.bdev, TTM_PL_VRAM);
 581
 582         NV_INFO(drm, "waiting for kernel channels to go idle...\n");
 583         if (drm->cechan) {
 584                 ret = nouveau_channel_idle(drm->cechan);
 585                 if (ret)
 586                         goto fail_display;
 587         }
 588
 589         if (drm->channel) {
 590                 ret = nouveau_channel_idle(drm->channel);
 591                 if (ret)
 592                         goto fail_display;
 593         }
 594
 595         NV_INFO(drm, "suspending client object trees...\n");
 596         if (drm->fence && nouveau_fence(drm)->suspend) {
 597                 if (!nouveau_fence(drm)->suspend(drm)) {
 598                         ret = -ENOMEM;
 599                         goto fail_display;
 600                 }
 601         }
 602
 603         list_for_each_entry(cli, &drm->clients, head) {
 604                 ret = nvif_client_suspend(&cli->base);
 605                 if (ret)
 606                         goto fail_client;
 607         }
 608
 609         NV_INFO(drm, "suspending kernel object tree...\n");
 610         ret = nvif_client_suspend(&drm->client.base);
 611         if (ret)
 612                 goto fail_client;
 613
 614         return 0;
 615
 616 fail_client:
 617         list_for_each_entry_continue_reverse(cli, &drm->clients, head) {
 618                 nvif_client_resume(&cli->base);
 619         }
 620
 621         if (drm->fence && nouveau_fence(drm)->resume)
 622                 nouveau_fence(drm)->resume(drm);
 623
 624 fail_display:
 625         if (dev->mode_config.num_crtc) {
 626                 NV_INFO(drm, "resuming display...\n");
 627                 nouveau_display_resume(dev, runtime);
 628         }
 629         return ret;
 630 }
 631
 632 static int
 633 nouveau_do_resume(struct drm_device *dev, bool runtime)
 634 {
 635         struct nouveau_drm *drm = nouveau_drm(dev);
 636         struct nouveau_cli *cli;
 637
 638         NV_INFO(drm, "resuming kernel object tree...\n");
 639         nvif_client_resume(&drm->client.base);
 640
 641         NV_INFO(drm, "resuming client object trees...\n");
 642         if (drm->fence && nouveau_fence(drm)->resume)
 643                 nouveau_fence(drm)->resume(drm);
 644
 645         list_for_each_entry(cli, &drm->clients, head) {
 646                 nvif_client_resume(&cli->base);
 647         }
 648
 649         nouveau_run_vbios_init(dev);
 650
 651         if (dev->mode_config.num_crtc) {
 652                 NV_INFO(drm, "resuming display...\n");
 653                 nouveau_display_resume(dev, runtime);
 654                 NV_INFO(drm, "resuming console...\n");
 655                 nouveau_fbcon_set_suspend(dev, 0);
 656         }
 657
 658         nouveau_led_resume(dev);
 659
 660         return 0;
 661 }
 662
 663 int
 664 nouveau_pmops_suspend(struct device *dev)
 665 {
 666         struct pci_dev *pdev = to_pci_dev(dev);
 667         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 668         int ret;
 669
 670         if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF ||
 671             drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF)
 672                 return 0;
 673
 674         ret = nouveau_do_suspend(drm_dev, false);
 675         if (ret)
 676                 return ret;
 677
 678         pci_save_state(pdev);
 679         pci_disable_device(pdev);
 680         pci_set_power_state(pdev, PCI_D3hot);
 681         udelay(200);
 682         return 0;
 683 }
 684
 685 int
 686 nouveau_pmops_resume(struct device *dev)
 687 {
 688         struct pci_dev *pdev = to_pci_dev(dev);
 689         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 690         int ret;
 691
 692         if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF ||
 693             drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF)
 694                 return 0;
 695
 696         pci_set_power_state(pdev, PCI_D0);
 697         pci_restore_state(pdev);
 698         ret = pci_enable_device(pdev);
 699         if (ret)
 700                 return ret;
 701         pci_set_master(pdev);
 702
 703         ret = nouveau_do_resume(drm_dev, false);
 704
 705         /* Monitors may have been connected / disconnected during suspend */
 706         schedule_work(&nouveau_drm(drm_dev)->hpd_work);
 707
 708         return ret;
 709 }
 710
 711 static int
 712 nouveau_pmops_freeze(struct device *dev)
 713 {
 714         struct pci_dev *pdev = to_pci_dev(dev);
 715         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 716         return nouveau_do_suspend(drm_dev, false);
 717 }
 718
 719 static int
 720 nouveau_pmops_thaw(struct device *dev)
 721 {
 722         struct pci_dev *pdev = to_pci_dev(dev);
 723         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 724         return nouveau_do_resume(drm_dev, false);
 725 }
 726
 727 static int
 728 nouveau_pmops_runtime_suspend(struct device *dev)
 729 {
 730         struct pci_dev *pdev = to_pci_dev(dev);
 731         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 732         int ret;
 733
 734         if (nouveau_runtime_pm == 0) {
 735                 pm_runtime_forbid(dev);
 736                 return -EBUSY;
 737         }
 738
 739         /* are we optimus enabled? */
 740         if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) {
 741                 DRM_DEBUG_DRIVER("failing to power off - not optimus\n");
 742                 pm_runtime_forbid(dev);
 743                 return -EBUSY;
 744         }
 745
 746         drm_kms_helper_poll_disable(drm_dev);
 747         vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_OFF);
 748         nouveau_switcheroo_optimus_dsm();
 749         ret = nouveau_do_suspend(drm_dev, true);
 750         pci_save_state(pdev);
 751         pci_disable_device(pdev);
 752         pci_ignore_hotplug(pdev);
 753         pci_set_power_state(pdev, PCI_D3cold);
 754         drm_dev->switch_power_state = DRM_SWITCH_POWER_DYNAMIC_OFF;
 755         return ret;
 756 }
 757
 758 static int
 759 nouveau_pmops_runtime_resume(struct device *dev)
 760 {
 761         struct pci_dev *pdev = to_pci_dev(dev);
 762         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 763         struct nvif_device *device = &nouveau_drm(drm_dev)->device;
 764         int ret;
 765
 766         if (nouveau_runtime_pm == 0)
 767                 return -EINVAL;
 768
 769         pci_set_power_state(pdev, PCI_D0);
 770         pci_restore_state(pdev);
 771         ret = pci_enable_device(pdev);
 772         if (ret)
 773                 return ret;
 774         pci_set_master(pdev);
 775
 776         ret = nouveau_do_resume(drm_dev, true);
 777         drm_kms_helper_poll_enable(drm_dev);
 778         /* do magic */
 779         nvif_mask(&device->object, 0x088488, (1 << 25), (1 << 25));
 780         vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_ON);
 781         drm_dev->switch_power_state = DRM_SWITCH_POWER_ON;
 782
 783         /* Monitors may have been connected / disconnected during suspend */
 784         schedule_work(&nouveau_drm(drm_dev)->hpd_work);
 785
 786         return ret;
 787 }
 788
 789 static int
 790 nouveau_pmops_runtime_idle(struct device *dev)
 791 {
 792         struct pci_dev *pdev = to_pci_dev(dev);
 793         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 794         struct nouveau_drm *drm = nouveau_drm(drm_dev);
 795         struct drm_crtc *crtc;
 796
 797         if (nouveau_runtime_pm == 0) {
 798                 pm_runtime_forbid(dev);
 799                 return -EBUSY;
 800         }
 801
 802         /* are we optimus enabled? */
 803         if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) {
 804                 DRM_DEBUG_DRIVER("failing to power off - not optimus\n");
 805                 pm_runtime_forbid(dev);
 806                 return -EBUSY;
 807         }
 808
 809         /* if we have a hdmi audio device - make sure it has a driver loaded */
 810         if (drm->hdmi_device) {
 811                 if (!drm->hdmi_device->driver) {
 812                         DRM_DEBUG_DRIVER("failing to power off - no HDMI audio driver loaded\n");
 813                         pm_runtime_mark_last_busy(dev);
 814                         return -EBUSY;
 815                 }
 816         }
 817
 818         list_for_each_entry(crtc, &drm->dev->mode_config.crtc_list, head) {
 819                 if (crtc->enabled) {
 820                         DRM_DEBUG_DRIVER("failing to power off - crtc active\n");
 821                         return -EBUSY;
 822                 }
 823         }
 824         pm_runtime_mark_last_busy(dev);
 825         pm_runtime_autosuspend(dev);
 826         /* we don't want the main rpm_idle to call suspend - we want to autosuspend */
 827         return 1;
 828 }
 829
 830 static int
 831 nouveau_drm_open(struct drm_device *dev, struct drm_file *fpriv)
 832 {
 833         struct nouveau_drm *drm = nouveau_drm(dev);
 834         struct nouveau_cli *cli;
 835         char name[32], tmpname[TASK_COMM_LEN];
 836         int ret;
 837
 838         /* need to bring up power immediately if opening device */
 839         ret = pm_runtime_get_sync(dev->dev);
 840         if (ret < 0 && ret != -EACCES)
 841                 return ret;
 842
 843         get_task_comm(tmpname, current);
 844         snprintf(name, sizeof(name), "%s[%d]", tmpname, pid_nr(fpriv->pid));
 845
 846         ret = nouveau_cli_create(dev, name, sizeof(*cli), (void **)&cli);
 847
 848         if (ret)
 849                 goto out_suspend;
 850
 851         cli->base.super = false;
 852
 853         if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
 854                 ret = nvkm_vm_new(nvxx_device(&drm->device), 0, (1ULL << 40),
 855                                   0x1000, NULL, &cli->vm);
 856                 if (ret) {
 857                         nouveau_cli_destroy(cli);
 858                         goto out_suspend;
 859                 }
 860
 861                 nvxx_client(&cli->base)->vm = cli->vm;
 862         }
 863
 864         fpriv->driver_priv = cli;
 865
 866         mutex_lock(&drm->client.mutex);
 867         list_add(&cli->head, &drm->clients);
 868         mutex_unlock(&drm->client.mutex);
 869
 870 out_suspend:
 871         pm_runtime_mark_last_busy(dev->dev);
 872         pm_runtime_put_autosuspend(dev->dev);
 873
 874         return ret;
 875 }
 876
 877 static void
 878 nouveau_drm_preclose(struct drm_device *dev, struct drm_file *fpriv)
 879 {
 880         struct nouveau_cli *cli = nouveau_cli(fpriv);
 881         struct nouveau_drm *drm = nouveau_drm(dev);
 882
 883         pm_runtime_get_sync(dev->dev);
 884
 885         mutex_lock(&cli->mutex);
 886         if (cli->abi16)
 887                 nouveau_abi16_fini(cli->abi16);
 888         mutex_unlock(&cli->mutex);
 889
 890         mutex_lock(&drm->client.mutex);
 891         list_del(&cli->head);
 892         mutex_unlock(&drm->client.mutex);
 893
 894 }
 895
 896 static void
 897 nouveau_drm_postclose(struct drm_device *dev, struct drm_file *fpriv)
 898 {
 899         struct nouveau_cli *cli = nouveau_cli(fpriv);
 900         nouveau_cli_destroy(cli);
 901         pm_runtime_mark_last_busy(dev->dev);
 902         pm_runtime_put_autosuspend(dev->dev);
 903 }
 904
 905 static const struct drm_ioctl_desc
 906 nouveau_ioctls[] = {
 907         DRM_IOCTL_DEF_DRV(NOUVEAU_GETPARAM, nouveau_abi16_ioctl_getparam, DRM_AUTH|DRM_RENDER_ALLOW),
 908         DRM_IOCTL_DEF_DRV(NOUVEAU_SETPARAM, nouveau_abi16_ioctl_setparam, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
 909         DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_ALLOC, nouveau_abi16_ioctl_channel_alloc, DRM_AUTH|DRM_RENDER_ALLOW),
 910         DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_FREE, nouveau_abi16_ioctl_channel_free, DRM_AUTH|DRM_RENDER_ALLOW),
 911         DRM_IOCTL_DEF_DRV(NOUVEAU_GROBJ_ALLOC, nouveau_abi16_ioctl_grobj_alloc, DRM_AUTH|DRM_RENDER_ALLOW),
 912         DRM_IOCTL_DEF_DRV(NOUVEAU_NOTIFIEROBJ_ALLOC, nouveau_abi16_ioctl_notifierobj_alloc, DRM_AUTH|DRM_RENDER_ALLOW),
 913         DRM_IOCTL_DEF_DRV(NOUVEAU_GPUOBJ_FREE, nouveau_abi16_ioctl_gpuobj_free, DRM_AUTH|DRM_RENDER_ALLOW),
 914         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_NEW, nouveau_gem_ioctl_new, DRM_AUTH|DRM_RENDER_ALLOW),
 915         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_PUSHBUF, nouveau_gem_ioctl_pushbuf, DRM_AUTH|DRM_RENDER_ALLOW),
 916         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_PREP, nouveau_gem_ioctl_cpu_prep, DRM_AUTH|DRM_RENDER_ALLOW),
 917         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_FINI, nouveau_gem_ioctl_cpu_fini, DRM_AUTH|DRM_RENDER_ALLOW),
 918         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_INFO, nouveau_gem_ioctl_info, DRM_AUTH|DRM_RENDER_ALLOW),
 919 };
 920
 921 long
 922 nouveau_drm_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 923 {
 924         struct drm_file *filp = file->private_data;
 925         struct drm_device *dev = filp->minor->dev;
 926         long ret;
 927
 928         ret = pm_runtime_get_sync(dev->dev);
 929         if (ret < 0 && ret != -EACCES)
 930                 return ret;
 931
 932         switch (_IOC_NR(cmd) - DRM_COMMAND_BASE) {
 933         case DRM_NOUVEAU_NVIF:
 934                 ret = usif_ioctl(filp, (void __user *)arg, _IOC_SIZE(cmd));
 935                 break;
 936         default:
 937                 ret = drm_ioctl(file, cmd, arg);
 938                 break;
 939         }
 940
 941         pm_runtime_mark_last_busy(dev->dev);
 942         pm_runtime_put_autosuspend(dev->dev);
 943         return ret;
 944 }
 945
 946 static const struct file_operations
 947 nouveau_driver_fops = {
 948         .owner = THIS_MODULE,
 949         .open = drm_open,
 950         .release = drm_release,
 951         .unlocked_ioctl = nouveau_drm_ioctl,
 952         .mmap = nouveau_ttm_mmap,
 953         .poll = drm_poll,
 954         .read = drm_read,
 955 #if defined(CONFIG_COMPAT)
 956         .compat_ioctl = nouveau_compat_ioctl,
 957 #endif
 958         .llseek = noop_llseek,
 959 };
 960
 961 static struct drm_driver
 962 driver_stub = {
 963         .driver_features =
 964                 DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME | DRIVER_RENDER |
 965                 DRIVER_KMS_LEGACY_CONTEXT,
 966
 967         .load = nouveau_drm_load,
 968         .unload = nouveau_drm_unload,
 969         .open = nouveau_drm_open,
 970         .preclose = nouveau_drm_preclose,
 971         .postclose = nouveau_drm_postclose,
 972         .lastclose = nouveau_vga_lastclose,
 973
 974 #if defined(CONFIG_DEBUG_FS)
 975         .debugfs_init = nouveau_drm_debugfs_init,
 976         .debugfs_cleanup = nouveau_drm_debugfs_cleanup,
 977 #endif
 978
 979         .get_vblank_counter = drm_vblank_no_hw_counter,
 980         .enable_vblank = nouveau_display_vblank_enable,
 981         .disable_vblank = nouveau_display_vblank_disable,
 982         .get_scanout_position = nouveau_display_scanoutpos,
 983         .get_vblank_timestamp = nouveau_display_vblstamp,
 984
 985         .ioctls = nouveau_ioctls,
 986         .num_ioctls = ARRAY_SIZE(nouveau_ioctls),
 987         .fops = &nouveau_driver_fops,
 988
 989         .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
 990         .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
 991         .gem_prime_export = drm_gem_prime_export,
 992         .gem_prime_import = drm_gem_prime_import,
 993         .gem_prime_pin = nouveau_gem_prime_pin,
 994         .gem_prime_res_obj = nouveau_gem_prime_res_obj,
 995         .gem_prime_unpin = nouveau_gem_prime_unpin,
 996         .gem_prime_get_sg_table = nouveau_gem_prime_get_sg_table,
 997         .gem_prime_import_sg_table = nouveau_gem_prime_import_sg_table,
 998         .gem_prime_vmap = nouveau_gem_prime_vmap,
 999         .gem_prime_vunmap = nouveau_gem_prime_vunmap,
1000
1001         .gem_free_object_unlocked = nouveau_gem_object_del,
1002         .gem_open_object = nouveau_gem_object_open,
1003         .gem_close_object = nouveau_gem_object_close,
1004
1005         .dumb_create = nouveau_display_dumb_create,
1006         .dumb_map_offset = nouveau_display_dumb_map_offset,
1007         .dumb_destroy = drm_gem_dumb_destroy,
1008
1009         .name = DRIVER_NAME,
1010         .desc = DRIVER_DESC,
1011 #ifdef GIT_REVISION
1012         .date = GIT_REVISION,
1013 #else
1014         .date = DRIVER_DATE,
1015 #endif
1016         .major = DRIVER_MAJOR,
1017         .minor = DRIVER_MINOR,
1018         .patchlevel = DRIVER_PATCHLEVEL,
1019 };
1020
1021 static struct pci_device_id
1022 nouveau_drm_pci_table[] = {
1023         {
1024                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID),
1025                 .class = PCI_BASE_CLASS_DISPLAY << 16,
1026                 .class_mask  = 0xff << 16,
1027         },
1028         {
1029                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA_SGS, PCI_ANY_ID),
1030                 .class = PCI_BASE_CLASS_DISPLAY << 16,
1031                 .class_mask  = 0xff << 16,
1032         },
1033         {}
1034 };
1035
1036 static void nouveau_display_options(void)
1037 {
1038         DRM_DEBUG_DRIVER("Loading Nouveau with parameters:\n");
1039
1040         DRM_DEBUG_DRIVER("... tv_disable   : %d\n", nouveau_tv_disable);
1041         DRM_DEBUG_DRIVER("... ignorelid    : %d\n", nouveau_ignorelid);
1042         DRM_DEBUG_DRIVER("... duallink     : %d\n", nouveau_duallink);
1043         DRM_DEBUG_DRIVER("... nofbaccel    : %d\n", nouveau_nofbaccel);
1044         DRM_DEBUG_DRIVER("... config       : %s\n", nouveau_config);
1045         DRM_DEBUG_DRIVER("... debug        : %s\n", nouveau_debug);
1046         DRM_DEBUG_DRIVER("... noaccel      : %d\n", nouveau_noaccel);
1047         DRM_DEBUG_DRIVER("... modeset      : %d\n", nouveau_modeset);
1048         DRM_DEBUG_DRIVER("... runpm        : %d\n", nouveau_runtime_pm);
1049         DRM_DEBUG_DRIVER("... vram_pushbuf : %d\n", nouveau_vram_pushbuf);
1050         DRM_DEBUG_DRIVER("... hdmimhz      : %d\n", nouveau_hdmimhz);
1051 }
1052
1053 static const struct dev_pm_ops nouveau_pm_ops = {
1054         .suspend = nouveau_pmops_suspend,
1055         .resume = nouveau_pmops_resume,
1056         .freeze = nouveau_pmops_freeze,
1057         .thaw = nouveau_pmops_thaw,
1058         .poweroff = nouveau_pmops_freeze,
1059         .restore = nouveau_pmops_resume,
1060         .runtime_suspend = nouveau_pmops_runtime_suspend,
1061         .runtime_resume = nouveau_pmops_runtime_resume,
1062         .runtime_idle = nouveau_pmops_runtime_idle,
1063 };
1064
1065 static struct pci_driver
1066 nouveau_drm_pci_driver = {
1067         .name = "nouveau",
1068         .id_table = nouveau_drm_pci_table,
1069         .probe = nouveau_drm_probe,
1070         .remove = nouveau_drm_remove,
1071         .driver.pm = &nouveau_pm_ops,
1072 };
1073
1074 struct drm_device *
1075 nouveau_platform_device_create(const struct nvkm_device_tegra_func *func,
1076                                struct platform_device *pdev,
1077                                struct nvkm_device **pdevice)
1078 {
1079         struct drm_device *drm;
1080         int err;
1081
1082         err = nvkm_device_tegra_new(func, pdev, nouveau_config, nouveau_debug,
1083                                     true, true, ~0ULL, pdevice);
1084         if (err)
1085                 goto err_free;
1086
1087         drm = drm_dev_alloc(&driver_platform, &pdev->dev);
1088         if (IS_ERR(drm)) {
1089                 err = PTR_ERR(drm);
1090                 goto err_free;
1091         }
1092
1093         drm->platformdev = pdev;
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");