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/module.h>
  27 #include <linux/pci.h>
  28 #include <linux/pm_runtime.h>
  29 #include <linux/vga_switcheroo.h>
  30
  31 #include "drmP.h"
  32 #include "drm_crtc_helper.h"
  33
  34 #include <core/device.h>
  35 #include <core/gpuobj.h>
  36 #include <core/option.h>
  37
  38 #include "nouveau_drm.h"
  39 #include "nouveau_dma.h"
  40 #include "nouveau_ttm.h"
  41 #include "nouveau_gem.h"
  42 #include "nouveau_agp.h"
  43 #include "nouveau_vga.h"
  44 #include "nouveau_sysfs.h"
  45 #include "nouveau_hwmon.h"
  46 #include "nouveau_acpi.h"
  47 #include "nouveau_bios.h"
  48 #include "nouveau_ioctl.h"
  49 #include "nouveau_abi16.h"
  50 #include "nouveau_fbcon.h"
  51 #include "nouveau_fence.h"
  52 #include "nouveau_debugfs.h"
  53 #include "nouveau_usif.h"
  54 #include "nouveau_connector.h"
  55
  56 MODULE_PARM_DESC(config, "option string to pass to driver core");
  57 static char *nouveau_config;
  58 module_param_named(config, nouveau_config, charp, 0400);
  59
  60 MODULE_PARM_DESC(debug, "debug string to pass to driver core");
  61 static char *nouveau_debug;
  62 module_param_named(debug, nouveau_debug, charp, 0400);
  63
  64 MODULE_PARM_DESC(noaccel, "disable kernel/abi16 acceleration");
  65 static int nouveau_noaccel = 0;
  66 module_param_named(noaccel, nouveau_noaccel, int, 0400);
  67
  68 MODULE_PARM_DESC(modeset, "enable driver (default: auto, "
  69                           "0 = disabled, 1 = enabled, 2 = headless)");
  70 int nouveau_modeset = -1;
  71 module_param_named(modeset, nouveau_modeset, int, 0400);
  72
  73 MODULE_PARM_DESC(runpm, "disable (0), force enable (1), optimus only default (-1)");
  74 int nouveau_runtime_pm = -1;
  75 module_param_named(runpm, nouveau_runtime_pm, int, 0400);
  76
  77 static struct drm_driver driver_stub;
  78 static struct drm_driver driver_pci;
  79 static struct drm_driver driver_platform;
  80
  81 static u64
  82 nouveau_pci_name(struct pci_dev *pdev)
  83 {
  84         u64 name = (u64)pci_domain_nr(pdev->bus) << 32;
  85         name |= pdev->bus->number << 16;
  86         name |= PCI_SLOT(pdev->devfn) << 8;
  87         return name | PCI_FUNC(pdev->devfn);
  88 }
  89
  90 static u64
  91 nouveau_platform_name(struct platform_device *platformdev)
  92 {
  93         return platformdev->id;
  94 }
  95
  96 static u64
  97 nouveau_name(struct drm_device *dev)
  98 {
  99         if (dev->pdev)
 100                 return nouveau_pci_name(dev->pdev);
 101         else
 102                 return nouveau_platform_name(dev->platformdev);
 103 }
 104
 105 static int
 106 nouveau_cli_create(u64 name, const char *sname,
 107                    int size, void **pcli)
 108 {
 109         struct nouveau_cli *cli = *pcli = kzalloc(size, GFP_KERNEL);
 110         if (cli) {
 111                 int ret = nvif_client_init(NULL, NULL, sname, name,
 112                                            nouveau_config, nouveau_debug,
 113                                           &cli->base);
 114                 if (ret == 0) {
 115                         mutex_init(&cli->mutex);
 116                         usif_client_init(cli);
 117                 }
 118                 return ret;
 119         }
 120         return -ENOMEM;
 121 }
 122
 123 static void
 124 nouveau_cli_destroy(struct nouveau_cli *cli)
 125 {
 126         nouveau_vm_ref(NULL, &nvkm_client(&cli->base)->vm, NULL);
 127         nvif_client_fini(&cli->base);
 128         usif_client_fini(cli);
 129 }
 130
 131 static void
 132 nouveau_accel_fini(struct nouveau_drm *drm)
 133 {
 134         nouveau_channel_del(&drm->channel);
 135         nvif_object_fini(&drm->ntfy);
 136         nouveau_gpuobj_ref(NULL, &drm->notify);
 137         nvif_object_fini(&drm->nvsw);
 138         nouveau_channel_del(&drm->cechan);
 139         nvif_object_fini(&drm->ttm.copy);
 140         if (drm->fence)
 141                 nouveau_fence(drm)->dtor(drm);
 142 }
 143
 144 static void
 145 nouveau_accel_init(struct nouveau_drm *drm)
 146 {
 147         struct nvif_device *device = &drm->device;
 148         u32 arg0, arg1;
 149         u32 sclass[16];
 150         int ret, i;
 151
 152         if (nouveau_noaccel)
 153                 return;
 154
 155         /* initialise synchronisation routines */
 156         /*XXX: this is crap, but the fence/channel stuff is a little
 157          *     backwards in some places.  this will be fixed.
 158          */
 159         ret = nvif_object_sclass(&device->base, sclass, ARRAY_SIZE(sclass));
 160         if (ret < 0)
 161                 return;
 162
 163         for (ret = -ENOSYS, i = 0; ret && i < ARRAY_SIZE(sclass); i++) {
 164                 switch (sclass[i]) {
 165                 case NV03_CHANNEL_DMA:
 166                         ret = nv04_fence_create(drm);
 167                         break;
 168                 case NV10_CHANNEL_DMA:
 169                         ret = nv10_fence_create(drm);
 170                         break;
 171                 case NV17_CHANNEL_DMA:
 172                 case NV40_CHANNEL_DMA:
 173                         ret = nv17_fence_create(drm);
 174                         break;
 175                 case NV50_CHANNEL_GPFIFO:
 176                         ret = nv50_fence_create(drm);
 177                         break;
 178                 case G82_CHANNEL_GPFIFO:
 179                         ret = nv84_fence_create(drm);
 180                         break;
 181                 case FERMI_CHANNEL_GPFIFO:
 182                 case KEPLER_CHANNEL_GPFIFO_A:
 183                         ret = nvc0_fence_create(drm);
 184                         break;
 185                 default:
 186                         break;
 187                 }
 188         }
 189
 190         if (ret) {
 191                 NV_ERROR(drm, "failed to initialise sync subsystem, %d\n", ret);
 192                 nouveau_accel_fini(drm);
 193                 return;
 194         }
 195
 196         if (device->info.family >= NV_DEVICE_INFO_V0_KEPLER) {
 197                 ret = nouveau_channel_new(drm, &drm->device, NVDRM_CHAN + 1,
 198                                           KEPLER_CHANNEL_GPFIFO_A_V0_ENGINE_CE0|
 199                                           KEPLER_CHANNEL_GPFIFO_A_V0_ENGINE_CE1,
 200                                           0, &drm->cechan);
 201                 if (ret)
 202                         NV_ERROR(drm, "failed to create ce channel, %d\n", ret);
 203
 204                 arg0 = KEPLER_CHANNEL_GPFIFO_A_V0_ENGINE_GR;
 205                 arg1 = 1;
 206         } else
 207         if (device->info.chipset >= 0xa3 &&
 208             device->info.chipset != 0xaa &&
 209             device->info.chipset != 0xac) {
 210                 ret = nouveau_channel_new(drm, &drm->device, NVDRM_CHAN + 1,
 211                                           NvDmaFB, NvDmaTT, &drm->cechan);
 212                 if (ret)
 213                         NV_ERROR(drm, "failed to create ce channel, %d\n", ret);
 214
 215                 arg0 = NvDmaFB;
 216                 arg1 = NvDmaTT;
 217         } else {
 218                 arg0 = NvDmaFB;
 219                 arg1 = NvDmaTT;
 220         }
 221
 222         ret = nouveau_channel_new(drm, &drm->device, NVDRM_CHAN, arg0, arg1,
 223                                  &drm->channel);
 224         if (ret) {
 225                 NV_ERROR(drm, "failed to create kernel channel, %d\n", ret);
 226                 nouveau_accel_fini(drm);
 227                 return;
 228         }
 229
 230         ret = nvif_object_init(drm->channel->object, NULL, NVDRM_NVSW,
 231                                nouveau_abi16_swclass(drm), NULL, 0, &drm->nvsw);
 232         if (ret == 0) {
 233                 struct nouveau_software_chan *swch;
 234                 ret = RING_SPACE(drm->channel, 2);
 235                 if (ret == 0) {
 236                         if (device->info.family < NV_DEVICE_INFO_V0_FERMI) {
 237                                 BEGIN_NV04(drm->channel, NvSubSw, 0, 1);
 238                                 OUT_RING  (drm->channel, NVDRM_NVSW);
 239                         } else
 240                         if (device->info.family < NV_DEVICE_INFO_V0_KEPLER) {
 241                                 BEGIN_NVC0(drm->channel, FermiSw, 0, 1);
 242                                 OUT_RING  (drm->channel, 0x001f0000);
 243                         }
 244                 }
 245                 swch = (void *)nvkm_object(&drm->nvsw)->parent;
 246                 swch->flip = nouveau_flip_complete;
 247                 swch->flip_data = drm->channel;
 248         }
 249
 250         if (ret) {
 251                 NV_ERROR(drm, "failed to allocate software object, %d\n", ret);
 252                 nouveau_accel_fini(drm);
 253                 return;
 254         }
 255
 256         if (device->info.family < NV_DEVICE_INFO_V0_FERMI) {
 257                 ret = nouveau_gpuobj_new(nvkm_object(&drm->device), NULL, 32,
 258                                          0, 0, &drm->notify);
 259                 if (ret) {
 260                         NV_ERROR(drm, "failed to allocate notifier, %d\n", ret);
 261                         nouveau_accel_fini(drm);
 262                         return;
 263                 }
 264
 265                 ret = nvif_object_init(drm->channel->object, NULL, NvNotify0,
 266                                        NV_DMA_IN_MEMORY,
 267                                        &(struct nv_dma_v0) {
 268                                                 .target = NV_DMA_V0_TARGET_VRAM,
 269                                                 .access = NV_DMA_V0_ACCESS_RDWR,
 270                                                 .start = drm->notify->addr,
 271                                                 .limit = drm->notify->addr + 31
 272                                        }, sizeof(struct nv_dma_v0),
 273                                        &drm->ntfy);
 274                 if (ret) {
 275                         nouveau_accel_fini(drm);
 276                         return;
 277                 }
 278         }
 279
 280
 281         nouveau_bo_move_init(drm);
 282 }
 283
 284 static int nouveau_drm_probe(struct pci_dev *pdev,
 285                              const struct pci_device_id *pent)
 286 {
 287         struct nouveau_device *device;
 288         struct apertures_struct *aper;
 289         bool boot = false;
 290         int ret;
 291
 292         /* remove conflicting drivers (vesafb, efifb etc) */
 293         aper = alloc_apertures(3);
 294         if (!aper)
 295                 return -ENOMEM;
 296
 297         aper->ranges[0].base = pci_resource_start(pdev, 1);
 298         aper->ranges[0].size = pci_resource_len(pdev, 1);
 299         aper->count = 1;
 300
 301         if (pci_resource_len(pdev, 2)) {
 302                 aper->ranges[aper->count].base = pci_resource_start(pdev, 2);
 303                 aper->ranges[aper->count].size = pci_resource_len(pdev, 2);
 304                 aper->count++;
 305         }
 306
 307         if (pci_resource_len(pdev, 3)) {
 308                 aper->ranges[aper->count].base = pci_resource_start(pdev, 3);
 309                 aper->ranges[aper->count].size = pci_resource_len(pdev, 3);
 310                 aper->count++;
 311         }
 312
 313 #ifdef CONFIG_X86
 314         boot = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
 315 #endif
 316         if (nouveau_modeset != 2)
 317                 remove_conflicting_framebuffers(aper, "nouveaufb", boot);
 318         kfree(aper);
 319
 320         ret = nouveau_device_create(pdev, NOUVEAU_BUS_PCI,
 321                                     nouveau_pci_name(pdev), pci_name(pdev),
 322                                     nouveau_config, nouveau_debug, &device);
 323         if (ret)
 324                 return ret;
 325
 326         pci_set_master(pdev);
 327
 328         ret = drm_get_pci_dev(pdev, pent, &driver_pci);
 329         if (ret) {
 330                 nouveau_object_ref(NULL, (struct nouveau_object **)&device);
 331                 return ret;
 332         }
 333
 334         return 0;
 335 }
 336
 337 #define PCI_CLASS_MULTIMEDIA_HD_AUDIO 0x0403
 338
 339 static void
 340 nouveau_get_hdmi_dev(struct nouveau_drm *drm)
 341 {
 342         struct pci_dev *pdev = drm->dev->pdev;
 343
 344         if (!pdev) {
 345                 DRM_INFO("not a PCI device; no HDMI\n");
 346                 drm->hdmi_device = NULL;
 347                 return;
 348         }
 349
 350         /* subfunction one is a hdmi audio device? */
 351         drm->hdmi_device = pci_get_bus_and_slot((unsigned int)pdev->bus->number,
 352                                                 PCI_DEVFN(PCI_SLOT(pdev->devfn), 1));
 353
 354         if (!drm->hdmi_device) {
 355                 NV_DEBUG(drm, "hdmi device not found %d %d %d\n", pdev->bus->number, PCI_SLOT(pdev->devfn), 1);
 356                 return;
 357         }
 358
 359         if ((drm->hdmi_device->class >> 8) != PCI_CLASS_MULTIMEDIA_HD_AUDIO) {
 360                 NV_DEBUG(drm, "possible hdmi device not audio %d\n", drm->hdmi_device->class);
 361                 pci_dev_put(drm->hdmi_device);
 362                 drm->hdmi_device = NULL;
 363                 return;
 364         }
 365 }
 366
 367 static int
 368 nouveau_drm_load(struct drm_device *dev, unsigned long flags)
 369 {
 370         struct pci_dev *pdev = dev->pdev;
 371         struct nouveau_drm *drm;
 372         int ret;
 373
 374         ret = nouveau_cli_create(nouveau_name(dev), "DRM", sizeof(*drm),
 375                                  (void **)&drm);
 376         if (ret)
 377                 return ret;
 378
 379         dev->dev_private = drm;
 380         drm->dev = dev;
 381         nvkm_client(&drm->client.base)->debug =
 382                 nouveau_dbgopt(nouveau_debug, "DRM");
 383
 384         INIT_LIST_HEAD(&drm->clients);
 385         spin_lock_init(&drm->tile.lock);
 386
 387         nouveau_get_hdmi_dev(drm);
 388
 389         /* make sure AGP controller is in a consistent state before we
 390          * (possibly) execute vbios init tables (see nouveau_agp.h)
 391          */
 392         if (pdev && drm_pci_device_is_agp(dev) && dev->agp) {
 393                 const u64 enables = NV_DEVICE_V0_DISABLE_IDENTIFY |
 394                                     NV_DEVICE_V0_DISABLE_MMIO;
 395                 /* dummy device object, doesn't init anything, but allows
 396                  * agp code access to registers
 397                  */
 398                 ret = nvif_device_init(&drm->client.base.base, NULL,
 399                                        NVDRM_DEVICE, NV_DEVICE,
 400                                        &(struct nv_device_v0) {
 401                                                 .device = ~0,
 402                                                 .disable = ~enables,
 403                                                 .debug0 = ~0,
 404                                        }, sizeof(struct nv_device_v0),
 405                                        &drm->device);
 406                 if (ret)
 407                         goto fail_device;
 408
 409                 nouveau_agp_reset(drm);
 410                 nvif_device_fini(&drm->device);
 411         }
 412
 413         ret = nvif_device_init(&drm->client.base.base, NULL, NVDRM_DEVICE,
 414                                NV_DEVICE,
 415                                &(struct nv_device_v0) {
 416                                         .device = ~0,
 417                                         .disable = 0,
 418                                         .debug0 = 0,
 419                                }, sizeof(struct nv_device_v0),
 420                                &drm->device);
 421         if (ret)
 422                 goto fail_device;
 423
 424         dev->irq_enabled = true;
 425
 426         /* workaround an odd issue on nvc1 by disabling the device's
 427          * nosnoop capability.  hopefully won't cause issues until a
 428          * better fix is found - assuming there is one...
 429          */
 430         if (drm->device.info.chipset == 0xc1)
 431                 nvif_mask(&drm->device, 0x00088080, 0x00000800, 0x00000000);
 432
 433         nouveau_vga_init(drm);
 434         nouveau_agp_init(drm);
 435
 436         if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
 437                 ret = nouveau_vm_new(nvkm_device(&drm->device), 0, (1ULL << 40),
 438                                      0x1000, &drm->client.vm);
 439                 if (ret)
 440                         goto fail_device;
 441
 442                 nvkm_client(&drm->client.base)->vm = drm->client.vm;
 443         }
 444
 445         ret = nouveau_ttm_init(drm);
 446         if (ret)
 447                 goto fail_ttm;
 448
 449         ret = nouveau_bios_init(dev);
 450         if (ret)
 451                 goto fail_bios;
 452
 453         ret = nouveau_display_create(dev);
 454         if (ret)
 455                 goto fail_dispctor;
 456
 457         if (dev->mode_config.num_crtc) {
 458                 ret = nouveau_display_init(dev);
 459                 if (ret)
 460                         goto fail_dispinit;
 461         }
 462
 463         nouveau_sysfs_init(dev);
 464         nouveau_hwmon_init(dev);
 465         nouveau_accel_init(drm);
 466         nouveau_fbcon_init(dev);
 467
 468         if (nouveau_runtime_pm != 0) {
 469                 pm_runtime_use_autosuspend(dev->dev);
 470                 pm_runtime_set_autosuspend_delay(dev->dev, 5000);
 471                 pm_runtime_set_active(dev->dev);
 472                 pm_runtime_allow(dev->dev);
 473                 pm_runtime_mark_last_busy(dev->dev);
 474                 pm_runtime_put(dev->dev);
 475         }
 476         return 0;
 477
 478 fail_dispinit:
 479         nouveau_display_destroy(dev);
 480 fail_dispctor:
 481         nouveau_bios_takedown(dev);
 482 fail_bios:
 483         nouveau_ttm_fini(drm);
 484 fail_ttm:
 485         nouveau_agp_fini(drm);
 486         nouveau_vga_fini(drm);
 487 fail_device:
 488         nvif_device_fini(&drm->device);
 489         nouveau_cli_destroy(&drm->client);
 490         return ret;
 491 }
 492
 493 static int
 494 nouveau_drm_unload(struct drm_device *dev)
 495 {
 496         struct nouveau_drm *drm = nouveau_drm(dev);
 497
 498         pm_runtime_get_sync(dev->dev);
 499         nouveau_fbcon_fini(dev);
 500         nouveau_accel_fini(drm);
 501         nouveau_hwmon_fini(dev);
 502         nouveau_sysfs_fini(dev);
 503
 504         if (dev->mode_config.num_crtc)
 505                 nouveau_display_fini(dev);
 506         nouveau_display_destroy(dev);
 507
 508         nouveau_bios_takedown(dev);
 509
 510         nouveau_ttm_fini(drm);
 511         nouveau_agp_fini(drm);
 512         nouveau_vga_fini(drm);
 513
 514         nvif_device_fini(&drm->device);
 515         if (drm->hdmi_device)
 516                 pci_dev_put(drm->hdmi_device);
 517         nouveau_cli_destroy(&drm->client);
 518         return 0;
 519 }
 520
 521 void
 522 nouveau_drm_device_remove(struct drm_device *dev)
 523 {
 524         struct nouveau_drm *drm = nouveau_drm(dev);
 525         struct nouveau_client *client;
 526         struct nouveau_object *device;
 527
 528         dev->irq_enabled = false;
 529         client = nvkm_client(&drm->client.base);
 530         device = client->device;
 531         drm_put_dev(dev);
 532
 533         nouveau_object_ref(NULL, &device);
 534         nouveau_object_debug();
 535 }
 536 EXPORT_SYMBOL(nouveau_drm_device_remove);
 537
 538 static void
 539 nouveau_drm_remove(struct pci_dev *pdev)
 540 {
 541         struct drm_device *dev = pci_get_drvdata(pdev);
 542
 543         nouveau_drm_device_remove(dev);
 544 }
 545
 546 static int
 547 nouveau_do_suspend(struct drm_device *dev, bool runtime)
 548 {
 549         struct nouveau_drm *drm = nouveau_drm(dev);
 550         struct nouveau_cli *cli;
 551         int ret;
 552
 553         if (dev->mode_config.num_crtc) {
 554                 NV_INFO(drm, "suspending console...\n");
 555                 nouveau_fbcon_set_suspend(dev, 1);
 556                 NV_INFO(drm, "suspending display...\n");
 557                 ret = nouveau_display_suspend(dev, runtime);
 558                 if (ret)
 559                         return ret;
 560         }
 561
 562         NV_INFO(drm, "evicting buffers...\n");
 563         ttm_bo_evict_mm(&drm->ttm.bdev, TTM_PL_VRAM);
 564
 565         NV_INFO(drm, "waiting for kernel channels to go idle...\n");
 566         if (drm->cechan) {
 567                 ret = nouveau_channel_idle(drm->cechan);
 568                 if (ret)
 569                         goto fail_display;
 570         }
 571
 572         if (drm->channel) {
 573                 ret = nouveau_channel_idle(drm->channel);
 574                 if (ret)
 575                         goto fail_display;
 576         }
 577
 578         NV_INFO(drm, "suspending client object trees...\n");
 579         if (drm->fence && nouveau_fence(drm)->suspend) {
 580                 if (!nouveau_fence(drm)->suspend(drm)) {
 581                         ret = -ENOMEM;
 582                         goto fail_display;
 583                 }
 584         }
 585
 586         list_for_each_entry(cli, &drm->clients, head) {
 587                 ret = nvif_client_suspend(&cli->base);
 588                 if (ret)
 589                         goto fail_client;
 590         }
 591
 592         NV_INFO(drm, "suspending kernel object tree...\n");
 593         ret = nvif_client_suspend(&drm->client.base);
 594         if (ret)
 595                 goto fail_client;
 596
 597         nouveau_agp_fini(drm);
 598         return 0;
 599
 600 fail_client:
 601         list_for_each_entry_continue_reverse(cli, &drm->clients, head) {
 602                 nvif_client_resume(&cli->base);
 603         }
 604
 605         if (drm->fence && nouveau_fence(drm)->resume)
 606                 nouveau_fence(drm)->resume(drm);
 607
 608 fail_display:
 609         if (dev->mode_config.num_crtc) {
 610                 NV_INFO(drm, "resuming display...\n");
 611                 nouveau_display_resume(dev, runtime);
 612         }
 613         return ret;
 614 }
 615
 616 static int
 617 nouveau_do_resume(struct drm_device *dev, bool runtime)
 618 {
 619         struct nouveau_drm *drm = nouveau_drm(dev);
 620         struct nouveau_cli *cli;
 621
 622         NV_INFO(drm, "re-enabling device...\n");
 623
 624         nouveau_agp_reset(drm);
 625
 626         NV_INFO(drm, "resuming kernel object tree...\n");
 627         nvif_client_resume(&drm->client.base);
 628         nouveau_agp_init(drm);
 629
 630         NV_INFO(drm, "resuming client object trees...\n");
 631         if (drm->fence && nouveau_fence(drm)->resume)
 632                 nouveau_fence(drm)->resume(drm);
 633
 634         list_for_each_entry(cli, &drm->clients, head) {
 635                 nvif_client_resume(&cli->base);
 636         }
 637
 638         nouveau_run_vbios_init(dev);
 639
 640         if (dev->mode_config.num_crtc) {
 641                 NV_INFO(drm, "resuming display...\n");
 642                 nouveau_display_resume(dev, runtime);
 643                 NV_INFO(drm, "resuming console...\n");
 644                 nouveau_fbcon_set_suspend(dev, 0);
 645         }
 646
 647         return 0;
 648 }
 649
 650 int
 651 nouveau_pmops_suspend(struct device *dev)
 652 {
 653         struct pci_dev *pdev = to_pci_dev(dev);
 654         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 655         int ret;
 656
 657         if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF ||
 658             drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF)
 659                 return 0;
 660
 661         ret = nouveau_do_suspend(drm_dev, false);
 662         if (ret)
 663                 return ret;
 664
 665         pci_save_state(pdev);
 666         pci_disable_device(pdev);
 667         pci_ignore_hotplug(pdev);
 668         pci_set_power_state(pdev, PCI_D3hot);
 669         return 0;
 670 }
 671
 672 int
 673 nouveau_pmops_resume(struct device *dev)
 674 {
 675         struct pci_dev *pdev = to_pci_dev(dev);
 676         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 677         int ret;
 678
 679         if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF ||
 680             drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF)
 681                 return 0;
 682
 683         pci_set_power_state(pdev, PCI_D0);
 684         pci_restore_state(pdev);
 685         ret = pci_enable_device(pdev);
 686         if (ret)
 687                 return ret;
 688         pci_set_master(pdev);
 689
 690         return nouveau_do_resume(drm_dev, false);
 691 }
 692
 693 static int
 694 nouveau_pmops_freeze(struct device *dev)
 695 {
 696         struct pci_dev *pdev = to_pci_dev(dev);
 697         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 698         return nouveau_do_suspend(drm_dev, false);
 699 }
 700
 701 static int
 702 nouveau_pmops_thaw(struct device *dev)
 703 {
 704         struct pci_dev *pdev = to_pci_dev(dev);
 705         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 706         return nouveau_do_resume(drm_dev, false);
 707 }
 708
 709 static int
 710 nouveau_pmops_runtime_suspend(struct device *dev)
 711 {
 712         struct pci_dev *pdev = to_pci_dev(dev);
 713         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 714         int ret;
 715
 716         if (nouveau_runtime_pm == 0) {
 717                 pm_runtime_forbid(dev);
 718                 return -EBUSY;
 719         }
 720
 721         /* are we optimus enabled? */
 722         if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) {
 723                 DRM_DEBUG_DRIVER("failing to power off - not optimus\n");
 724                 pm_runtime_forbid(dev);
 725                 return -EBUSY;
 726         }
 727
 728         nv_debug_level(SILENT);
 729         drm_kms_helper_poll_disable(drm_dev);
 730         vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_OFF);
 731         nouveau_switcheroo_optimus_dsm();
 732         ret = nouveau_do_suspend(drm_dev, true);
 733         pci_save_state(pdev);
 734         pci_disable_device(pdev);
 735         pci_set_power_state(pdev, PCI_D3cold);
 736         drm_dev->switch_power_state = DRM_SWITCH_POWER_DYNAMIC_OFF;
 737         return ret;
 738 }
 739
 740 static int
 741 nouveau_pmops_runtime_resume(struct device *dev)
 742 {
 743         struct pci_dev *pdev = to_pci_dev(dev);
 744         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 745         struct nvif_device *device = &nouveau_drm(drm_dev)->device;
 746         int ret;
 747
 748         if (nouveau_runtime_pm == 0)
 749                 return -EINVAL;
 750
 751         pci_set_power_state(pdev, PCI_D0);
 752         pci_restore_state(pdev);
 753         ret = pci_enable_device(pdev);
 754         if (ret)
 755                 return ret;
 756         pci_set_master(pdev);
 757
 758         ret = nouveau_do_resume(drm_dev, true);
 759         drm_kms_helper_poll_enable(drm_dev);
 760         /* do magic */
 761         nvif_mask(device, 0x88488, (1 << 25), (1 << 25));
 762         vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_ON);
 763         drm_dev->switch_power_state = DRM_SWITCH_POWER_ON;
 764         nv_debug_level(NORMAL);
 765         return ret;
 766 }
 767
 768 static int
 769 nouveau_pmops_runtime_idle(struct device *dev)
 770 {
 771         struct pci_dev *pdev = to_pci_dev(dev);
 772         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 773         struct nouveau_drm *drm = nouveau_drm(drm_dev);
 774         struct drm_crtc *crtc;
 775
 776         if (nouveau_runtime_pm == 0) {
 777                 pm_runtime_forbid(dev);
 778                 return -EBUSY;
 779         }
 780
 781         /* are we optimus enabled? */
 782         if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) {
 783                 DRM_DEBUG_DRIVER("failing to power off - not optimus\n");
 784                 pm_runtime_forbid(dev);
 785                 return -EBUSY;
 786         }
 787
 788         /* if we have a hdmi audio device - make sure it has a driver loaded */
 789         if (drm->hdmi_device) {
 790                 if (!drm->hdmi_device->driver) {
 791                         DRM_DEBUG_DRIVER("failing to power off - no HDMI audio driver loaded\n");
 792                         pm_runtime_mark_last_busy(dev);
 793                         return -EBUSY;
 794                 }
 795         }
 796
 797         list_for_each_entry(crtc, &drm->dev->mode_config.crtc_list, head) {
 798                 if (crtc->enabled) {
 799                         DRM_DEBUG_DRIVER("failing to power off - crtc active\n");
 800                         return -EBUSY;
 801                 }
 802         }
 803         pm_runtime_mark_last_busy(dev);
 804         pm_runtime_autosuspend(dev);
 805         /* we don't want the main rpm_idle to call suspend - we want to autosuspend */
 806         return 1;
 807 }
 808
 809 static int
 810 nouveau_drm_open(struct drm_device *dev, struct drm_file *fpriv)
 811 {
 812         struct nouveau_drm *drm = nouveau_drm(dev);
 813         struct nouveau_cli *cli;
 814         char name[32], tmpname[TASK_COMM_LEN];
 815         int ret;
 816
 817         /* need to bring up power immediately if opening device */
 818         ret = pm_runtime_get_sync(dev->dev);
 819         if (ret < 0 && ret != -EACCES)
 820                 return ret;
 821
 822         get_task_comm(tmpname, current);
 823         snprintf(name, sizeof(name), "%s[%d]", tmpname, pid_nr(fpriv->pid));
 824
 825         ret = nouveau_cli_create(nouveau_name(dev), name, sizeof(*cli),
 826                         (void **)&cli);
 827
 828         if (ret)
 829                 goto out_suspend;
 830
 831         cli->base.super = false;
 832
 833         if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
 834                 ret = nouveau_vm_new(nvkm_device(&drm->device), 0, (1ULL << 40),
 835                                      0x1000, &cli->vm);
 836                 if (ret) {
 837                         nouveau_cli_destroy(cli);
 838                         goto out_suspend;
 839                 }
 840
 841                 nvkm_client(&cli->base)->vm = cli->vm;
 842         }
 843
 844         fpriv->driver_priv = cli;
 845
 846         mutex_lock(&drm->client.mutex);
 847         list_add(&cli->head, &drm->clients);
 848         mutex_unlock(&drm->client.mutex);
 849
 850 out_suspend:
 851         pm_runtime_mark_last_busy(dev->dev);
 852         pm_runtime_put_autosuspend(dev->dev);
 853
 854         return ret;
 855 }
 856
 857 static void
 858 nouveau_drm_preclose(struct drm_device *dev, struct drm_file *fpriv)
 859 {
 860         struct nouveau_cli *cli = nouveau_cli(fpriv);
 861         struct nouveau_drm *drm = nouveau_drm(dev);
 862
 863         pm_runtime_get_sync(dev->dev);
 864
 865         if (cli->abi16)
 866                 nouveau_abi16_fini(cli->abi16);
 867
 868         mutex_lock(&drm->client.mutex);
 869         list_del(&cli->head);
 870         mutex_unlock(&drm->client.mutex);
 871
 872 }
 873
 874 static void
 875 nouveau_drm_postclose(struct drm_device *dev, struct drm_file *fpriv)
 876 {
 877         struct nouveau_cli *cli = nouveau_cli(fpriv);
 878         nouveau_cli_destroy(cli);
 879         pm_runtime_mark_last_busy(dev->dev);
 880         pm_runtime_put_autosuspend(dev->dev);
 881 }
 882
 883 static const struct drm_ioctl_desc
 884 nouveau_ioctls[] = {
 885         DRM_IOCTL_DEF_DRV(NOUVEAU_GETPARAM, nouveau_abi16_ioctl_getparam, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 886         DRM_IOCTL_DEF_DRV(NOUVEAU_SETPARAM, nouveau_abi16_ioctl_setparam, DRM_UNLOCKED|DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
 887         DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_ALLOC, nouveau_abi16_ioctl_channel_alloc, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 888         DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_FREE, nouveau_abi16_ioctl_channel_free, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 889         DRM_IOCTL_DEF_DRV(NOUVEAU_GROBJ_ALLOC, nouveau_abi16_ioctl_grobj_alloc, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 890         DRM_IOCTL_DEF_DRV(NOUVEAU_NOTIFIEROBJ_ALLOC, nouveau_abi16_ioctl_notifierobj_alloc, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 891         DRM_IOCTL_DEF_DRV(NOUVEAU_GPUOBJ_FREE, nouveau_abi16_ioctl_gpuobj_free, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 892         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_NEW, nouveau_gem_ioctl_new, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 893         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_PUSHBUF, nouveau_gem_ioctl_pushbuf, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 894         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_PREP, nouveau_gem_ioctl_cpu_prep, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 895         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_FINI, nouveau_gem_ioctl_cpu_fini, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 896         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_INFO, nouveau_gem_ioctl_info, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 897 };
 898
 899 long
 900 nouveau_drm_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 901 {
 902         struct drm_file *filp = file->private_data;
 903         struct drm_device *dev = filp->minor->dev;
 904         long ret;
 905
 906         ret = pm_runtime_get_sync(dev->dev);
 907         if (ret < 0 && ret != -EACCES)
 908                 return ret;
 909
 910         switch (_IOC_NR(cmd) - DRM_COMMAND_BASE) {
 911         case DRM_NOUVEAU_NVIF:
 912                 ret = usif_ioctl(filp, (void __user *)arg, _IOC_SIZE(cmd));
 913                 break;
 914         default:
 915                 ret = drm_ioctl(file, cmd, arg);
 916                 break;
 917         }
 918
 919         pm_runtime_mark_last_busy(dev->dev);
 920         pm_runtime_put_autosuspend(dev->dev);
 921         return ret;
 922 }
 923
 924 static const struct file_operations
 925 nouveau_driver_fops = {
 926         .owner = THIS_MODULE,
 927         .open = drm_open,
 928         .release = drm_release,
 929         .unlocked_ioctl = nouveau_drm_ioctl,
 930         .mmap = nouveau_ttm_mmap,
 931         .poll = drm_poll,
 932         .read = drm_read,
 933 #if defined(CONFIG_COMPAT)
 934         .compat_ioctl = nouveau_compat_ioctl,
 935 #endif
 936         .llseek = noop_llseek,
 937 };
 938
 939 static struct drm_driver
 940 driver_stub = {
 941         .driver_features =
 942                 DRIVER_USE_AGP |
 943                 DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME | DRIVER_RENDER,
 944
 945         .load = nouveau_drm_load,
 946         .unload = nouveau_drm_unload,
 947         .open = nouveau_drm_open,
 948         .preclose = nouveau_drm_preclose,
 949         .postclose = nouveau_drm_postclose,
 950         .lastclose = nouveau_vga_lastclose,
 951
 952 #if defined(CONFIG_DEBUG_FS)
 953         .debugfs_init = nouveau_debugfs_init,
 954         .debugfs_cleanup = nouveau_debugfs_takedown,
 955 #endif
 956
 957         .get_vblank_counter = drm_vblank_count,
 958         .enable_vblank = nouveau_display_vblank_enable,
 959         .disable_vblank = nouveau_display_vblank_disable,
 960         .get_scanout_position = nouveau_display_scanoutpos,
 961         .get_vblank_timestamp = nouveau_display_vblstamp,
 962
 963         .ioctls = nouveau_ioctls,
 964         .num_ioctls = ARRAY_SIZE(nouveau_ioctls),
 965         .fops = &nouveau_driver_fops,
 966
 967         .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
 968         .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
 969         .gem_prime_export = drm_gem_prime_export,
 970         .gem_prime_import = drm_gem_prime_import,
 971         .gem_prime_pin = nouveau_gem_prime_pin,
 972         .gem_prime_res_obj = nouveau_gem_prime_res_obj,
 973         .gem_prime_unpin = nouveau_gem_prime_unpin,
 974         .gem_prime_get_sg_table = nouveau_gem_prime_get_sg_table,
 975         .gem_prime_import_sg_table = nouveau_gem_prime_import_sg_table,
 976         .gem_prime_vmap = nouveau_gem_prime_vmap,
 977         .gem_prime_vunmap = nouveau_gem_prime_vunmap,
 978
 979         .gem_free_object = nouveau_gem_object_del,
 980         .gem_open_object = nouveau_gem_object_open,
 981         .gem_close_object = nouveau_gem_object_close,
 982
 983         .dumb_create = nouveau_display_dumb_create,
 984         .dumb_map_offset = nouveau_display_dumb_map_offset,
 985         .dumb_destroy = drm_gem_dumb_destroy,
 986
 987         .name = DRIVER_NAME,
 988         .desc = DRIVER_DESC,
 989 #ifdef GIT_REVISION
 990         .date = GIT_REVISION,
 991 #else
 992         .date = DRIVER_DATE,
 993 #endif
 994         .major = DRIVER_MAJOR,
 995         .minor = DRIVER_MINOR,
 996         .patchlevel = DRIVER_PATCHLEVEL,
 997 };
 998
 999 static struct pci_device_id
1000 nouveau_drm_pci_table[] = {
1001         {
1002                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID),
1003                 .class = PCI_BASE_CLASS_DISPLAY << 16,
1004                 .class_mask  = 0xff << 16,
1005         },
1006         {
1007                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA_SGS, PCI_ANY_ID),
1008                 .class = PCI_BASE_CLASS_DISPLAY << 16,
1009                 .class_mask  = 0xff << 16,
1010         },
1011         {}
1012 };
1013
1014 static void nouveau_display_options(void)
1015 {
1016         DRM_DEBUG_DRIVER("Loading Nouveau with parameters:\n");
1017
1018         DRM_DEBUG_DRIVER("... tv_disable   : %d\n", nouveau_tv_disable);
1019         DRM_DEBUG_DRIVER("... ignorelid    : %d\n", nouveau_ignorelid);
1020         DRM_DEBUG_DRIVER("... duallink     : %d\n", nouveau_duallink);
1021         DRM_DEBUG_DRIVER("... nofbaccel    : %d\n", nouveau_nofbaccel);
1022         DRM_DEBUG_DRIVER("... config       : %s\n", nouveau_config);
1023         DRM_DEBUG_DRIVER("... debug        : %s\n", nouveau_debug);
1024         DRM_DEBUG_DRIVER("... noaccel      : %d\n", nouveau_noaccel);
1025         DRM_DEBUG_DRIVER("... modeset      : %d\n", nouveau_modeset);
1026         DRM_DEBUG_DRIVER("... runpm        : %d\n", nouveau_runtime_pm);
1027         DRM_DEBUG_DRIVER("... vram_pushbuf : %d\n", nouveau_vram_pushbuf);
1028         DRM_DEBUG_DRIVER("... pstate       : %d\n", nouveau_pstate);
1029 }
1030
1031 static const struct dev_pm_ops nouveau_pm_ops = {
1032         .suspend = nouveau_pmops_suspend,
1033         .resume = nouveau_pmops_resume,
1034         .freeze = nouveau_pmops_freeze,
1035         .thaw = nouveau_pmops_thaw,
1036         .poweroff = nouveau_pmops_freeze,
1037         .restore = nouveau_pmops_resume,
1038         .runtime_suspend = nouveau_pmops_runtime_suspend,
1039         .runtime_resume = nouveau_pmops_runtime_resume,
1040         .runtime_idle = nouveau_pmops_runtime_idle,
1041 };
1042
1043 static struct pci_driver
1044 nouveau_drm_pci_driver = {
1045         .name = "nouveau",
1046         .id_table = nouveau_drm_pci_table,
1047         .probe = nouveau_drm_probe,
1048         .remove = nouveau_drm_remove,
1049         .driver.pm = &nouveau_pm_ops,
1050 };
1051
1052 struct drm_device *
1053 nouveau_platform_device_create_(struct platform_device *pdev, int size,
1054                                 void **pobject)
1055 {
1056         struct drm_device *drm;
1057         int err;
1058
1059         err = nouveau_device_create_(pdev, NOUVEAU_BUS_PLATFORM,
1060                                     nouveau_platform_name(pdev),
1061                                     dev_name(&pdev->dev), nouveau_config,
1062                                     nouveau_debug, size, pobject);
1063         if (err)
1064                 return ERR_PTR(err);
1065
1066         drm = drm_dev_alloc(&driver_platform, &pdev->dev);
1067         if (!drm) {
1068                 err = -ENOMEM;
1069                 goto err_free;
1070         }
1071
1072         err = drm_dev_set_unique(drm, "%s", dev_name(&pdev->dev));
1073         if (err < 0)
1074                 goto err_free;
1075
1076         drm->platformdev = pdev;
1077         platform_set_drvdata(pdev, drm);
1078
1079         return drm;
1080
1081 err_free:
1082         nouveau_object_ref(NULL, (struct nouveau_object **)pobject);
1083
1084         return ERR_PTR(err);
1085 }
1086 EXPORT_SYMBOL(nouveau_platform_device_create_);
1087
1088 static int __init
1089 nouveau_drm_init(void)
1090 {
1091         driver_pci = driver_stub;
1092         driver_pci.set_busid = drm_pci_set_busid;
1093         driver_platform = driver_stub;
1094         driver_platform.set_busid = drm_platform_set_busid;
1095
1096         nouveau_display_options();
1097
1098         if (nouveau_modeset == -1) {
1099 #ifdef CONFIG_VGA_CONSOLE
1100                 if (vgacon_text_force())
1101                         nouveau_modeset = 0;
1102 #endif
1103         }
1104
1105         if (!nouveau_modeset)
1106                 return 0;
1107
1108         nouveau_register_dsm_handler();
1109         return drm_pci_init(&driver_pci, &nouveau_drm_pci_driver);
1110 }
1111
1112 static void __exit
1113 nouveau_drm_exit(void)
1114 {
1115         if (!nouveau_modeset)
1116                 return;
1117
1118         drm_pci_exit(&driver_pci, &nouveau_drm_pci_driver);
1119         nouveau_unregister_dsm_handler();
1120 }
1121
1122 module_init(nouveau_drm_init);
1123 module_exit(nouveau_drm_exit);
1124
1125 MODULE_DEVICE_TABLE(pci, nouveau_drm_pci_table);
1126 MODULE_AUTHOR(DRIVER_AUTHOR);
1127 MODULE_DESCRIPTION(DRIVER_DESC);
1128 MODULE_LICENSE("GPL and additional rights");