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/class.h>
  37 #include <core/option.h>
  38
  39 #include "nouveau_drm.h"
  40 #include "nouveau_dma.h"
  41 #include "nouveau_ttm.h"
  42 #include "nouveau_gem.h"
  43 #include "nouveau_agp.h"
  44 #include "nouveau_vga.h"
  45 #include "nouveau_sysfs.h"
  46 #include "nouveau_hwmon.h"
  47 #include "nouveau_acpi.h"
  48 #include "nouveau_bios.h"
  49 #include "nouveau_ioctl.h"
  50 #include "nouveau_abi16.h"
  51 #include "nouveau_fbcon.h"
  52 #include "nouveau_fence.h"
  53 #include "nouveau_debugfs.h"
  54
  55 MODULE_PARM_DESC(config, "option string to pass to driver core");
  56 static char *nouveau_config;
  57 module_param_named(config, nouveau_config, charp, 0400);
  58
  59 MODULE_PARM_DESC(debug, "debug string to pass to driver core");
  60 static char *nouveau_debug;
  61 module_param_named(debug, nouveau_debug, charp, 0400);
  62
  63 MODULE_PARM_DESC(noaccel, "disable kernel/abi16 acceleration");
  64 static int nouveau_noaccel = 0;
  65 module_param_named(noaccel, nouveau_noaccel, int, 0400);
  66
  67 MODULE_PARM_DESC(modeset, "enable driver (default: auto, "
  68                           "0 = disabled, 1 = enabled, 2 = headless)");
  69 int nouveau_modeset = -1;
  70 module_param_named(modeset, nouveau_modeset, int, 0400);
  71
  72 MODULE_PARM_DESC(runpm, "disable (0), force enable (1), optimus only default (-1)");
  73 int nouveau_runtime_pm = -1;
  74 module_param_named(runpm, nouveau_runtime_pm, int, 0400);
  75
  76 static struct drm_driver driver;
  77
  78 static u64
  79 nouveau_pci_name(struct pci_dev *pdev)
  80 {
  81         u64 name = (u64)pci_domain_nr(pdev->bus) << 32;
  82         name |= pdev->bus->number << 16;
  83         name |= PCI_SLOT(pdev->devfn) << 8;
  84         return name | PCI_FUNC(pdev->devfn);
  85 }
  86
  87 static u64
  88 nouveau_platform_name(struct platform_device *platformdev)
  89 {
  90         return platformdev->id;
  91 }
  92
  93 static u64
  94 nouveau_name(struct drm_device *dev)
  95 {
  96         if (dev->pdev)
  97                 return nouveau_pci_name(dev->pdev);
  98         else
  99                 return nouveau_platform_name(dev->platformdev);
 100 }
 101
 102 static int
 103 nouveau_cli_create(u64 name, const char *sname,
 104                    int size, void **pcli)
 105 {
 106         struct nouveau_cli *cli = *pcli = kzalloc(size, GFP_KERNEL);
 107         if (cli) {
 108                 int ret = nvif_client_init(NULL, NULL, sname, name,
 109                                            nouveau_config, nouveau_debug,
 110                                           &cli->base);
 111                 if (ret == 0)
 112                         mutex_init(&cli->mutex);
 113                 return ret;
 114         }
 115         return -ENOMEM;
 116 }
 117
 118 static void
 119 nouveau_cli_destroy(struct nouveau_cli *cli)
 120 {
 121         nouveau_vm_ref(NULL, &nvkm_client(&cli->base)->vm, NULL);
 122         nvif_client_fini(&cli->base);
 123 }
 124
 125 static void
 126 nouveau_accel_fini(struct nouveau_drm *drm)
 127 {
 128         nouveau_channel_del(&drm->channel);
 129         nvif_object_fini(&drm->ntfy);
 130         nouveau_gpuobj_ref(NULL, &drm->notify);
 131         nvif_object_fini(&drm->nvsw);
 132         nouveau_channel_del(&drm->cechan);
 133         nvif_object_fini(&drm->ttm.copy);
 134         if (drm->fence)
 135                 nouveau_fence(drm)->dtor(drm);
 136 }
 137
 138 static void
 139 nouveau_accel_init(struct nouveau_drm *drm)
 140 {
 141         struct nvif_device *device = &drm->device;
 142         u32 arg0, arg1;
 143         u32 sclass[16];
 144         int ret, i;
 145
 146         if (nouveau_noaccel)
 147                 return;
 148
 149         /* initialise synchronisation routines */
 150         /*XXX: this is crap, but the fence/channel stuff is a little
 151          *     backwards in some places.  this will be fixed.
 152          */
 153         ret = nvif_object_sclass(&device->base, sclass, ARRAY_SIZE(sclass));
 154         if (ret < 0)
 155                 return;
 156
 157         for (ret = -ENOSYS, i = 0; ret && i < ARRAY_SIZE(sclass); i++) {
 158                 switch (sclass[i]) {
 159                 case NV03_CHANNEL_DMA_CLASS:
 160                         ret = nv04_fence_create(drm);
 161                         break;
 162                 case NV10_CHANNEL_DMA_CLASS:
 163                         ret = nv10_fence_create(drm);
 164                         break;
 165                 case NV17_CHANNEL_DMA_CLASS:
 166                 case NV40_CHANNEL_DMA_CLASS:
 167                         ret = nv17_fence_create(drm);
 168                         break;
 169                 case NV50_CHANNEL_IND_CLASS:
 170                         ret = nv50_fence_create(drm);
 171                         break;
 172                 case NV84_CHANNEL_IND_CLASS:
 173                         ret = nv84_fence_create(drm);
 174                         break;
 175                 case NVC0_CHANNEL_IND_CLASS:
 176                 case NVE0_CHANNEL_IND_CLASS:
 177                         ret = nvc0_fence_create(drm);
 178                         break;
 179                 default:
 180                         break;
 181                 }
 182         }
 183
 184         if (ret) {
 185                 NV_ERROR(drm, "failed to initialise sync subsystem, %d\n", ret);
 186                 nouveau_accel_fini(drm);
 187                 return;
 188         }
 189
 190         if (device->info.family >= NV_DEVICE_INFO_V0_KEPLER) {
 191                 ret = nouveau_channel_new(drm, &drm->device, NVDRM_CHAN + 1,
 192                                           NVE0_CHANNEL_IND_ENGINE_CE0 |
 193                                           NVE0_CHANNEL_IND_ENGINE_CE1, 0,
 194                                           &drm->cechan);
 195                 if (ret)
 196                         NV_ERROR(drm, "failed to create ce channel, %d\n", ret);
 197
 198                 arg0 = NVE0_CHANNEL_IND_ENGINE_GR;
 199                 arg1 = 1;
 200         } else
 201         if (device->info.chipset >= 0xa3 &&
 202             device->info.chipset != 0xaa &&
 203             device->info.chipset != 0xac) {
 204                 ret = nouveau_channel_new(drm, &drm->device, NVDRM_CHAN + 1,
 205                                           NvDmaFB, NvDmaTT, &drm->cechan);
 206                 if (ret)
 207                         NV_ERROR(drm, "failed to create ce channel, %d\n", ret);
 208
 209                 arg0 = NvDmaFB;
 210                 arg1 = NvDmaTT;
 211         } else {
 212                 arg0 = NvDmaFB;
 213                 arg1 = NvDmaTT;
 214         }
 215
 216         ret = nouveau_channel_new(drm, &drm->device, NVDRM_CHAN, arg0, arg1,
 217                                  &drm->channel);
 218         if (ret) {
 219                 NV_ERROR(drm, "failed to create kernel channel, %d\n", ret);
 220                 nouveau_accel_fini(drm);
 221                 return;
 222         }
 223
 224         ret = nvif_object_init(drm->channel->object, NULL, NVDRM_NVSW,
 225                                nouveau_abi16_swclass(drm), NULL, 0, &drm->nvsw);
 226         if (ret == 0) {
 227                 struct nouveau_software_chan *swch;
 228                 ret = RING_SPACE(drm->channel, 2);
 229                 if (ret == 0) {
 230                         if (device->info.family < NV_DEVICE_INFO_V0_FERMI) {
 231                                 BEGIN_NV04(drm->channel, NvSubSw, 0, 1);
 232                                 OUT_RING  (drm->channel, NVDRM_NVSW);
 233                         } else
 234                         if (device->info.family < NV_DEVICE_INFO_V0_KEPLER) {
 235                                 BEGIN_NVC0(drm->channel, FermiSw, 0, 1);
 236                                 OUT_RING  (drm->channel, 0x001f0000);
 237                         }
 238                 }
 239                 swch = (void *)nvkm_object(&drm->nvsw)->parent;
 240                 swch->flip = nouveau_flip_complete;
 241                 swch->flip_data = drm->channel;
 242         }
 243
 244         if (ret) {
 245                 NV_ERROR(drm, "failed to allocate software object, %d\n", ret);
 246                 nouveau_accel_fini(drm);
 247                 return;
 248         }
 249
 250         if (device->info.family < NV_DEVICE_INFO_V0_FERMI) {
 251                 ret = nouveau_gpuobj_new(nvkm_object(&drm->device), NULL, 32,
 252                                          0, 0, &drm->notify);
 253                 if (ret) {
 254                         NV_ERROR(drm, "failed to allocate notifier, %d\n", ret);
 255                         nouveau_accel_fini(drm);
 256                         return;
 257                 }
 258
 259                 ret = nvif_object_init(drm->channel->object, NULL, NvNotify0,
 260                                        NV_DMA_IN_MEMORY,
 261                                        &(struct nv_dma_v0) {
 262                                                 .target = NV_DMA_V0_TARGET_VRAM,
 263                                                 .access = NV_DMA_V0_ACCESS_RDWR,
 264                                                 .start = drm->notify->addr,
 265                                                 .limit = drm->notify->addr + 31
 266                                        }, sizeof(struct nv_dma_v0),
 267                                        &drm->ntfy);
 268                 if (ret) {
 269                         nouveau_accel_fini(drm);
 270                         return;
 271                 }
 272         }
 273
 274
 275         nouveau_bo_move_init(drm);
 276 }
 277
 278 static int nouveau_drm_probe(struct pci_dev *pdev,
 279                              const struct pci_device_id *pent)
 280 {
 281         struct nouveau_device *device;
 282         struct apertures_struct *aper;
 283         bool boot = false;
 284         int ret;
 285
 286         /* remove conflicting drivers (vesafb, efifb etc) */
 287         aper = alloc_apertures(3);
 288         if (!aper)
 289                 return -ENOMEM;
 290
 291         aper->ranges[0].base = pci_resource_start(pdev, 1);
 292         aper->ranges[0].size = pci_resource_len(pdev, 1);
 293         aper->count = 1;
 294
 295         if (pci_resource_len(pdev, 2)) {
 296                 aper->ranges[aper->count].base = pci_resource_start(pdev, 2);
 297                 aper->ranges[aper->count].size = pci_resource_len(pdev, 2);
 298                 aper->count++;
 299         }
 300
 301         if (pci_resource_len(pdev, 3)) {
 302                 aper->ranges[aper->count].base = pci_resource_start(pdev, 3);
 303                 aper->ranges[aper->count].size = pci_resource_len(pdev, 3);
 304                 aper->count++;
 305         }
 306
 307 #ifdef CONFIG_X86
 308         boot = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
 309 #endif
 310         remove_conflicting_framebuffers(aper, "nouveaufb", boot);
 311         kfree(aper);
 312
 313         ret = nouveau_device_create(pdev, NOUVEAU_BUS_PCI,
 314                                     nouveau_pci_name(pdev), pci_name(pdev),
 315                                     nouveau_config, nouveau_debug, &device);
 316         if (ret)
 317                 return ret;
 318
 319         pci_set_master(pdev);
 320
 321         ret = drm_get_pci_dev(pdev, pent, &driver);
 322         if (ret) {
 323                 nouveau_object_ref(NULL, (struct nouveau_object **)&device);
 324                 return ret;
 325         }
 326
 327         return 0;
 328 }
 329
 330 #define PCI_CLASS_MULTIMEDIA_HD_AUDIO 0x0403
 331
 332 static void
 333 nouveau_get_hdmi_dev(struct nouveau_drm *drm)
 334 {
 335         struct pci_dev *pdev = drm->dev->pdev;
 336
 337         if (!pdev) {
 338                 DRM_INFO("not a PCI device; no HDMI\n");
 339                 drm->hdmi_device = NULL;
 340                 return;
 341         }
 342
 343         /* subfunction one is a hdmi audio device? */
 344         drm->hdmi_device = pci_get_bus_and_slot((unsigned int)pdev->bus->number,
 345                                                 PCI_DEVFN(PCI_SLOT(pdev->devfn), 1));
 346
 347         if (!drm->hdmi_device) {
 348                 NV_DEBUG(drm, "hdmi device not found %d %d %d\n", pdev->bus->number, PCI_SLOT(pdev->devfn), 1);
 349                 return;
 350         }
 351
 352         if ((drm->hdmi_device->class >> 8) != PCI_CLASS_MULTIMEDIA_HD_AUDIO) {
 353                 NV_DEBUG(drm, "possible hdmi device not audio %d\n", drm->hdmi_device->class);
 354                 pci_dev_put(drm->hdmi_device);
 355                 drm->hdmi_device = NULL;
 356                 return;
 357         }
 358 }
 359
 360 static int
 361 nouveau_drm_load(struct drm_device *dev, unsigned long flags)
 362 {
 363         struct pci_dev *pdev = dev->pdev;
 364         struct nouveau_drm *drm;
 365         int ret;
 366
 367         ret = nouveau_cli_create(nouveau_name(dev), "DRM", sizeof(*drm),
 368                                  (void **)&drm);
 369         if (ret)
 370                 return ret;
 371
 372         dev->dev_private = drm;
 373         drm->dev = dev;
 374         nvkm_client(&drm->client.base)->debug =
 375                 nouveau_dbgopt(nouveau_debug, "DRM");
 376
 377         INIT_LIST_HEAD(&drm->clients);
 378         spin_lock_init(&drm->tile.lock);
 379
 380         nouveau_get_hdmi_dev(drm);
 381
 382         /* make sure AGP controller is in a consistent state before we
 383          * (possibly) execute vbios init tables (see nouveau_agp.h)
 384          */
 385         if (pdev && drm_pci_device_is_agp(dev) && dev->agp) {
 386                 const u64 enables = NV_DEVICE_V0_DISABLE_IDENTIFY |
 387                                     NV_DEVICE_V0_DISABLE_MMIO;
 388                 /* dummy device object, doesn't init anything, but allows
 389                  * agp code access to registers
 390                  */
 391                 ret = nvif_device_init(&drm->client.base.base, NULL,
 392                                        NVDRM_DEVICE, NV_DEVICE,
 393                                        &(struct nv_device_v0) {
 394                                                 .device = ~0,
 395                                                 .disable = ~enables,
 396                                                 .debug0 = ~0,
 397                                        }, sizeof(struct nv_device_v0),
 398                                        &drm->device);
 399                 if (ret)
 400                         goto fail_device;
 401
 402                 nouveau_agp_reset(drm);
 403                 nvif_device_fini(&drm->device);
 404         }
 405
 406         ret = nvif_device_init(&drm->client.base.base, NULL, NVDRM_DEVICE,
 407                                NV_DEVICE,
 408                                &(struct nv_device_v0) {
 409                                         .device = ~0,
 410                                         .disable = 0,
 411                                         .debug0 = 0,
 412                                }, sizeof(struct nv_device_v0),
 413                                &drm->device);
 414         if (ret)
 415                 goto fail_device;
 416
 417         dev->irq_enabled = true;
 418
 419         /* workaround an odd issue on nvc1 by disabling the device's
 420          * nosnoop capability.  hopefully won't cause issues until a
 421          * better fix is found - assuming there is one...
 422          */
 423         if (drm->device.info.chipset == 0xc1)
 424                 nvif_mask(&drm->device, 0x00088080, 0x00000800, 0x00000000);
 425
 426         nouveau_vga_init(drm);
 427         nouveau_agp_init(drm);
 428
 429         if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
 430                 ret = nouveau_vm_new(nvkm_device(&drm->device), 0, (1ULL << 40),
 431                                      0x1000, &drm->client.vm);
 432                 if (ret)
 433                         goto fail_device;
 434
 435                 nvkm_client(&drm->client.base)->vm = drm->client.vm;
 436         }
 437
 438         ret = nouveau_ttm_init(drm);
 439         if (ret)
 440                 goto fail_ttm;
 441
 442         ret = nouveau_bios_init(dev);
 443         if (ret)
 444                 goto fail_bios;
 445
 446         ret = nouveau_display_create(dev);
 447         if (ret)
 448                 goto fail_dispctor;
 449
 450         if (dev->mode_config.num_crtc) {
 451                 ret = nouveau_display_init(dev);
 452                 if (ret)
 453                         goto fail_dispinit;
 454         }
 455
 456         nouveau_sysfs_init(dev);
 457         nouveau_hwmon_init(dev);
 458         nouveau_accel_init(drm);
 459         nouveau_fbcon_init(dev);
 460
 461         if (nouveau_runtime_pm != 0) {
 462                 pm_runtime_use_autosuspend(dev->dev);
 463                 pm_runtime_set_autosuspend_delay(dev->dev, 5000);
 464                 pm_runtime_set_active(dev->dev);
 465                 pm_runtime_allow(dev->dev);
 466                 pm_runtime_mark_last_busy(dev->dev);
 467                 pm_runtime_put(dev->dev);
 468         }
 469         return 0;
 470
 471 fail_dispinit:
 472         nouveau_display_destroy(dev);
 473 fail_dispctor:
 474         nouveau_bios_takedown(dev);
 475 fail_bios:
 476         nouveau_ttm_fini(drm);
 477 fail_ttm:
 478         nouveau_agp_fini(drm);
 479         nouveau_vga_fini(drm);
 480 fail_device:
 481         nvif_device_fini(&drm->device);
 482         nouveau_cli_destroy(&drm->client);
 483         return ret;
 484 }
 485
 486 static int
 487 nouveau_drm_unload(struct drm_device *dev)
 488 {
 489         struct nouveau_drm *drm = nouveau_drm(dev);
 490
 491         pm_runtime_get_sync(dev->dev);
 492         nouveau_fbcon_fini(dev);
 493         nouveau_accel_fini(drm);
 494         nouveau_hwmon_fini(dev);
 495         nouveau_sysfs_fini(dev);
 496
 497         if (dev->mode_config.num_crtc)
 498                 nouveau_display_fini(dev);
 499         nouveau_display_destroy(dev);
 500
 501         nouveau_bios_takedown(dev);
 502
 503         nouveau_ttm_fini(drm);
 504         nouveau_agp_fini(drm);
 505         nouveau_vga_fini(drm);
 506
 507         nvif_device_fini(&drm->device);
 508         if (drm->hdmi_device)
 509                 pci_dev_put(drm->hdmi_device);
 510         nouveau_cli_destroy(&drm->client);
 511         return 0;
 512 }
 513
 514 void
 515 nouveau_drm_device_remove(struct drm_device *dev)
 516 {
 517         struct nouveau_drm *drm = nouveau_drm(dev);
 518         struct nouveau_client *client;
 519         struct nouveau_object *device;
 520
 521         dev->irq_enabled = false;
 522         client = nvkm_client(&drm->client.base);
 523         device = client->device;
 524         drm_put_dev(dev);
 525
 526         nouveau_object_ref(NULL, &device);
 527         nouveau_object_debug();
 528 }
 529 EXPORT_SYMBOL(nouveau_drm_device_remove);
 530
 531 static void
 532 nouveau_drm_remove(struct pci_dev *pdev)
 533 {
 534         struct drm_device *dev = pci_get_drvdata(pdev);
 535
 536         nouveau_drm_device_remove(dev);
 537 }
 538
 539 static int
 540 nouveau_do_suspend(struct drm_device *dev, bool runtime)
 541 {
 542         struct nouveau_drm *drm = nouveau_drm(dev);
 543         struct nouveau_cli *cli;
 544         int ret;
 545
 546         if (dev->mode_config.num_crtc && !runtime) {
 547                 NV_INFO(drm, "suspending display...\n");
 548                 ret = nouveau_display_suspend(dev);
 549                 if (ret)
 550                         return ret;
 551         }
 552
 553         NV_INFO(drm, "evicting buffers...\n");
 554         ttm_bo_evict_mm(&drm->ttm.bdev, TTM_PL_VRAM);
 555
 556         NV_INFO(drm, "waiting for kernel channels to go idle...\n");
 557         if (drm->cechan) {
 558                 ret = nouveau_channel_idle(drm->cechan);
 559                 if (ret)
 560                         goto fail_display;
 561         }
 562
 563         if (drm->channel) {
 564                 ret = nouveau_channel_idle(drm->channel);
 565                 if (ret)
 566                         goto fail_display;
 567         }
 568
 569         NV_INFO(drm, "suspending client object trees...\n");
 570         if (drm->fence && nouveau_fence(drm)->suspend) {
 571                 if (!nouveau_fence(drm)->suspend(drm)) {
 572                         ret = -ENOMEM;
 573                         goto fail_display;
 574                 }
 575         }
 576
 577         list_for_each_entry(cli, &drm->clients, head) {
 578                 ret = nvif_client_suspend(&cli->base);
 579                 if (ret)
 580                         goto fail_client;
 581         }
 582
 583         NV_INFO(drm, "suspending kernel object tree...\n");
 584         ret = nvif_client_suspend(&drm->client.base);
 585         if (ret)
 586                 goto fail_client;
 587
 588         nouveau_agp_fini(drm);
 589         return 0;
 590
 591 fail_client:
 592         list_for_each_entry_continue_reverse(cli, &drm->clients, head) {
 593                 nvif_client_resume(&cli->base);
 594         }
 595
 596         if (drm->fence && nouveau_fence(drm)->resume)
 597                 nouveau_fence(drm)->resume(drm);
 598
 599 fail_display:
 600         if (dev->mode_config.num_crtc) {
 601                 NV_INFO(drm, "resuming display...\n");
 602                 nouveau_display_resume(dev);
 603         }
 604         return ret;
 605 }
 606
 607 int nouveau_pmops_suspend(struct device *dev)
 608 {
 609         struct pci_dev *pdev = to_pci_dev(dev);
 610         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 611         int ret;
 612
 613         if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF ||
 614             drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF)
 615                 return 0;
 616
 617         if (drm_dev->mode_config.num_crtc)
 618                 nouveau_fbcon_set_suspend(drm_dev, 1);
 619
 620         ret = nouveau_do_suspend(drm_dev, false);
 621         if (ret)
 622                 return ret;
 623
 624         pci_save_state(pdev);
 625         pci_disable_device(pdev);
 626         pci_set_power_state(pdev, PCI_D3hot);
 627         return 0;
 628 }
 629
 630 static int
 631 nouveau_do_resume(struct drm_device *dev)
 632 {
 633         struct nouveau_drm *drm = nouveau_drm(dev);
 634         struct nouveau_cli *cli;
 635
 636         NV_INFO(drm, "re-enabling device...\n");
 637
 638         nouveau_agp_reset(drm);
 639
 640         NV_INFO(drm, "resuming kernel object tree...\n");
 641         nvif_client_resume(&drm->client.base);
 642         nouveau_agp_init(drm);
 643
 644         NV_INFO(drm, "resuming client object trees...\n");
 645         if (drm->fence && nouveau_fence(drm)->resume)
 646                 nouveau_fence(drm)->resume(drm);
 647
 648         list_for_each_entry(cli, &drm->clients, head) {
 649                 nvif_client_resume(&cli->base);
 650         }
 651
 652         nouveau_run_vbios_init(dev);
 653
 654         if (dev->mode_config.num_crtc) {
 655                 NV_INFO(drm, "resuming display...\n");
 656                 nouveau_display_repin(dev);
 657         }
 658
 659         return 0;
 660 }
 661
 662 int nouveau_pmops_resume(struct device *dev)
 663 {
 664         struct pci_dev *pdev = to_pci_dev(dev);
 665         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 666         int ret;
 667
 668         if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF ||
 669             drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF)
 670                 return 0;
 671
 672         pci_set_power_state(pdev, PCI_D0);
 673         pci_restore_state(pdev);
 674         ret = pci_enable_device(pdev);
 675         if (ret)
 676                 return ret;
 677         pci_set_master(pdev);
 678
 679         ret = nouveau_do_resume(drm_dev);
 680         if (ret)
 681                 return ret;
 682
 683         if (drm_dev->mode_config.num_crtc) {
 684                 nouveau_display_resume(drm_dev);
 685                 nouveau_fbcon_set_suspend(drm_dev, 0);
 686         }
 687
 688         return 0;
 689 }
 690
 691 static int nouveau_pmops_freeze(struct device *dev)
 692 {
 693         struct pci_dev *pdev = to_pci_dev(dev);
 694         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 695         int ret;
 696
 697         if (drm_dev->mode_config.num_crtc)
 698                 nouveau_fbcon_set_suspend(drm_dev, 1);
 699
 700         ret = nouveau_do_suspend(drm_dev, false);
 701         return ret;
 702 }
 703
 704 static int nouveau_pmops_thaw(struct device *dev)
 705 {
 706         struct pci_dev *pdev = to_pci_dev(dev);
 707         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 708         int ret;
 709
 710         ret = nouveau_do_resume(drm_dev);
 711         if (ret)
 712                 return ret;
 713
 714         if (drm_dev->mode_config.num_crtc) {
 715                 nouveau_display_resume(drm_dev);
 716                 nouveau_fbcon_set_suspend(drm_dev, 0);
 717         }
 718
 719         return 0;
 720 }
 721
 722
 723 static int
 724 nouveau_drm_open(struct drm_device *dev, struct drm_file *fpriv)
 725 {
 726         struct nouveau_drm *drm = nouveau_drm(dev);
 727         struct nouveau_cli *cli;
 728         char name[32], tmpname[TASK_COMM_LEN];
 729         int ret;
 730
 731         /* need to bring up power immediately if opening device */
 732         ret = pm_runtime_get_sync(dev->dev);
 733         if (ret < 0 && ret != -EACCES)
 734                 return ret;
 735
 736         get_task_comm(tmpname, current);
 737         snprintf(name, sizeof(name), "%s[%d]", tmpname, pid_nr(fpriv->pid));
 738
 739         ret = nouveau_cli_create(nouveau_name(dev), name, sizeof(*cli),
 740                         (void **)&cli);
 741
 742         if (ret)
 743                 goto out_suspend;
 744
 745         cli->base.super = false;
 746
 747         if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
 748                 ret = nouveau_vm_new(nvkm_device(&drm->device), 0, (1ULL << 40),
 749                                      0x1000, &cli->vm);
 750                 if (ret) {
 751                         nouveau_cli_destroy(cli);
 752                         goto out_suspend;
 753                 }
 754
 755                 nvkm_client(&cli->base)->vm = cli->vm;
 756         }
 757
 758         fpriv->driver_priv = cli;
 759
 760         mutex_lock(&drm->client.mutex);
 761         list_add(&cli->head, &drm->clients);
 762         mutex_unlock(&drm->client.mutex);
 763
 764 out_suspend:
 765         pm_runtime_mark_last_busy(dev->dev);
 766         pm_runtime_put_autosuspend(dev->dev);
 767
 768         return ret;
 769 }
 770
 771 static void
 772 nouveau_drm_preclose(struct drm_device *dev, struct drm_file *fpriv)
 773 {
 774         struct nouveau_cli *cli = nouveau_cli(fpriv);
 775         struct nouveau_drm *drm = nouveau_drm(dev);
 776
 777         pm_runtime_get_sync(dev->dev);
 778
 779         if (cli->abi16)
 780                 nouveau_abi16_fini(cli->abi16);
 781
 782         mutex_lock(&drm->client.mutex);
 783         list_del(&cli->head);
 784         mutex_unlock(&drm->client.mutex);
 785
 786 }
 787
 788 static void
 789 nouveau_drm_postclose(struct drm_device *dev, struct drm_file *fpriv)
 790 {
 791         struct nouveau_cli *cli = nouveau_cli(fpriv);
 792         nouveau_cli_destroy(cli);
 793         pm_runtime_mark_last_busy(dev->dev);
 794         pm_runtime_put_autosuspend(dev->dev);
 795 }
 796
 797 static const struct drm_ioctl_desc
 798 nouveau_ioctls[] = {
 799         DRM_IOCTL_DEF_DRV(NOUVEAU_GETPARAM, nouveau_abi16_ioctl_getparam, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 800         DRM_IOCTL_DEF_DRV(NOUVEAU_SETPARAM, nouveau_abi16_ioctl_setparam, DRM_UNLOCKED|DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
 801         DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_ALLOC, nouveau_abi16_ioctl_channel_alloc, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 802         DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_FREE, nouveau_abi16_ioctl_channel_free, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 803         DRM_IOCTL_DEF_DRV(NOUVEAU_GROBJ_ALLOC, nouveau_abi16_ioctl_grobj_alloc, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 804         DRM_IOCTL_DEF_DRV(NOUVEAU_NOTIFIEROBJ_ALLOC, nouveau_abi16_ioctl_notifierobj_alloc, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 805         DRM_IOCTL_DEF_DRV(NOUVEAU_GPUOBJ_FREE, nouveau_abi16_ioctl_gpuobj_free, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 806         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_NEW, nouveau_gem_ioctl_new, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 807         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_PUSHBUF, nouveau_gem_ioctl_pushbuf, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 808         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_PREP, nouveau_gem_ioctl_cpu_prep, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 809         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_FINI, nouveau_gem_ioctl_cpu_fini, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 810         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_INFO, nouveau_gem_ioctl_info, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 811 };
 812
 813 long nouveau_drm_ioctl(struct file *filp,
 814                        unsigned int cmd, unsigned long arg)
 815 {
 816         struct drm_file *file_priv = filp->private_data;
 817         struct drm_device *dev;
 818         long ret;
 819         dev = file_priv->minor->dev;
 820
 821         ret = pm_runtime_get_sync(dev->dev);
 822         if (ret < 0 && ret != -EACCES)
 823                 return ret;
 824
 825         ret = drm_ioctl(filp, cmd, arg);
 826
 827         pm_runtime_mark_last_busy(dev->dev);
 828         pm_runtime_put_autosuspend(dev->dev);
 829         return ret;
 830 }
 831 static const struct file_operations
 832 nouveau_driver_fops = {
 833         .owner = THIS_MODULE,
 834         .open = drm_open,
 835         .release = drm_release,
 836         .unlocked_ioctl = nouveau_drm_ioctl,
 837         .mmap = nouveau_ttm_mmap,
 838         .poll = drm_poll,
 839         .read = drm_read,
 840 #if defined(CONFIG_COMPAT)
 841         .compat_ioctl = nouveau_compat_ioctl,
 842 #endif
 843         .llseek = noop_llseek,
 844 };
 845
 846 static struct drm_driver
 847 driver = {
 848         .driver_features =
 849                 DRIVER_USE_AGP |
 850                 DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME | DRIVER_RENDER,
 851
 852         .load = nouveau_drm_load,
 853         .unload = nouveau_drm_unload,
 854         .open = nouveau_drm_open,
 855         .preclose = nouveau_drm_preclose,
 856         .postclose = nouveau_drm_postclose,
 857         .lastclose = nouveau_vga_lastclose,
 858
 859 #if defined(CONFIG_DEBUG_FS)
 860         .debugfs_init = nouveau_debugfs_init,
 861         .debugfs_cleanup = nouveau_debugfs_takedown,
 862 #endif
 863
 864         .get_vblank_counter = drm_vblank_count,
 865         .enable_vblank = nouveau_display_vblank_enable,
 866         .disable_vblank = nouveau_display_vblank_disable,
 867         .get_scanout_position = nouveau_display_scanoutpos,
 868         .get_vblank_timestamp = nouveau_display_vblstamp,
 869
 870         .ioctls = nouveau_ioctls,
 871         .num_ioctls = ARRAY_SIZE(nouveau_ioctls),
 872         .fops = &nouveau_driver_fops,
 873
 874         .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
 875         .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
 876         .gem_prime_export = drm_gem_prime_export,
 877         .gem_prime_import = drm_gem_prime_import,
 878         .gem_prime_pin = nouveau_gem_prime_pin,
 879         .gem_prime_unpin = nouveau_gem_prime_unpin,
 880         .gem_prime_get_sg_table = nouveau_gem_prime_get_sg_table,
 881         .gem_prime_import_sg_table = nouveau_gem_prime_import_sg_table,
 882         .gem_prime_vmap = nouveau_gem_prime_vmap,
 883         .gem_prime_vunmap = nouveau_gem_prime_vunmap,
 884
 885         .gem_free_object = nouveau_gem_object_del,
 886         .gem_open_object = nouveau_gem_object_open,
 887         .gem_close_object = nouveau_gem_object_close,
 888
 889         .dumb_create = nouveau_display_dumb_create,
 890         .dumb_map_offset = nouveau_display_dumb_map_offset,
 891         .dumb_destroy = drm_gem_dumb_destroy,
 892
 893         .name = DRIVER_NAME,
 894         .desc = DRIVER_DESC,
 895 #ifdef GIT_REVISION
 896         .date = GIT_REVISION,
 897 #else
 898         .date = DRIVER_DATE,
 899 #endif
 900         .major = DRIVER_MAJOR,
 901         .minor = DRIVER_MINOR,
 902         .patchlevel = DRIVER_PATCHLEVEL,
 903 };
 904
 905 static struct pci_device_id
 906 nouveau_drm_pci_table[] = {
 907         {
 908                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID),
 909                 .class = PCI_BASE_CLASS_DISPLAY << 16,
 910                 .class_mask  = 0xff << 16,
 911         },
 912         {
 913                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA_SGS, PCI_ANY_ID),
 914                 .class = PCI_BASE_CLASS_DISPLAY << 16,
 915                 .class_mask  = 0xff << 16,
 916         },
 917         {}
 918 };
 919
 920 static int nouveau_pmops_runtime_suspend(struct device *dev)
 921 {
 922         struct pci_dev *pdev = to_pci_dev(dev);
 923         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 924         int ret;
 925
 926         if (nouveau_runtime_pm == 0) {
 927                 pm_runtime_forbid(dev);
 928                 return -EBUSY;
 929         }
 930
 931         /* are we optimus enabled? */
 932         if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) {
 933                 DRM_DEBUG_DRIVER("failing to power off - not optimus\n");
 934                 pm_runtime_forbid(dev);
 935                 return -EBUSY;
 936         }
 937
 938         nv_debug_level(SILENT);
 939         drm_kms_helper_poll_disable(drm_dev);
 940         vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_OFF);
 941         nouveau_switcheroo_optimus_dsm();
 942         ret = nouveau_do_suspend(drm_dev, true);
 943         pci_save_state(pdev);
 944         pci_disable_device(pdev);
 945         pci_set_power_state(pdev, PCI_D3cold);
 946         drm_dev->switch_power_state = DRM_SWITCH_POWER_DYNAMIC_OFF;
 947         return ret;
 948 }
 949
 950 static int nouveau_pmops_runtime_resume(struct device *dev)
 951 {
 952         struct pci_dev *pdev = to_pci_dev(dev);
 953         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 954         struct nvif_device *device = &nouveau_drm(drm_dev)->device;
 955         int ret;
 956
 957         if (nouveau_runtime_pm == 0)
 958                 return -EINVAL;
 959
 960         pci_set_power_state(pdev, PCI_D0);
 961         pci_restore_state(pdev);
 962         ret = pci_enable_device(pdev);
 963         if (ret)
 964                 return ret;
 965         pci_set_master(pdev);
 966
 967         ret = nouveau_do_resume(drm_dev);
 968         drm_kms_helper_poll_enable(drm_dev);
 969         /* do magic */
 970         nvif_mask(device, 0x88488, (1 << 25), (1 << 25));
 971         vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_ON);
 972         drm_dev->switch_power_state = DRM_SWITCH_POWER_ON;
 973         nv_debug_level(NORMAL);
 974         return ret;
 975 }
 976
 977 static int nouveau_pmops_runtime_idle(struct device *dev)
 978 {
 979         struct pci_dev *pdev = to_pci_dev(dev);
 980         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 981         struct nouveau_drm *drm = nouveau_drm(drm_dev);
 982         struct drm_crtc *crtc;
 983
 984         if (nouveau_runtime_pm == 0) {
 985                 pm_runtime_forbid(dev);
 986                 return -EBUSY;
 987         }
 988
 989         /* are we optimus enabled? */
 990         if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) {
 991                 DRM_DEBUG_DRIVER("failing to power off - not optimus\n");
 992                 pm_runtime_forbid(dev);
 993                 return -EBUSY;
 994         }
 995
 996         /* if we have a hdmi audio device - make sure it has a driver loaded */
 997         if (drm->hdmi_device) {
 998                 if (!drm->hdmi_device->driver) {
 999                         DRM_DEBUG_DRIVER("failing to power off - no HDMI audio driver loaded\n");
1000                         pm_runtime_mark_last_busy(dev);
1001                         return -EBUSY;
1002                 }
1003         }
1004
1005         list_for_each_entry(crtc, &drm->dev->mode_config.crtc_list, head) {
1006                 if (crtc->enabled) {
1007                         DRM_DEBUG_DRIVER("failing to power off - crtc active\n");
1008                         return -EBUSY;
1009                 }
1010         }
1011         pm_runtime_mark_last_busy(dev);
1012         pm_runtime_autosuspend(dev);
1013         /* we don't want the main rpm_idle to call suspend - we want to autosuspend */
1014         return 1;
1015 }
1016
1017 static const struct dev_pm_ops nouveau_pm_ops = {
1018         .suspend = nouveau_pmops_suspend,
1019         .resume = nouveau_pmops_resume,
1020         .freeze = nouveau_pmops_freeze,
1021         .thaw = nouveau_pmops_thaw,
1022         .poweroff = nouveau_pmops_freeze,
1023         .restore = nouveau_pmops_resume,
1024         .runtime_suspend = nouveau_pmops_runtime_suspend,
1025         .runtime_resume = nouveau_pmops_runtime_resume,
1026         .runtime_idle = nouveau_pmops_runtime_idle,
1027 };
1028
1029 static struct pci_driver
1030 nouveau_drm_pci_driver = {
1031         .name = "nouveau",
1032         .id_table = nouveau_drm_pci_table,
1033         .probe = nouveau_drm_probe,
1034         .remove = nouveau_drm_remove,
1035         .driver.pm = &nouveau_pm_ops,
1036 };
1037
1038 struct drm_device *
1039 nouveau_platform_device_create_(struct platform_device *pdev, int size,
1040                                 void **pobject)
1041 {
1042         struct drm_device *drm;
1043         int err;
1044
1045         err = nouveau_device_create_(pdev, NOUVEAU_BUS_PLATFORM,
1046                                     nouveau_platform_name(pdev),
1047                                     dev_name(&pdev->dev), nouveau_config,
1048                                     nouveau_debug, size, pobject);
1049         if (err)
1050                 return ERR_PTR(err);
1051
1052         drm = drm_dev_alloc(&driver, &pdev->dev);
1053         if (!drm) {
1054                 err = -ENOMEM;
1055                 goto err_free;
1056         }
1057
1058         err = drm_dev_set_unique(drm, "%s", dev_name(&pdev->dev));
1059         if (err < 0)
1060                 goto err_free;
1061
1062         drm->platformdev = pdev;
1063         platform_set_drvdata(pdev, drm);
1064
1065         return drm;
1066
1067 err_free:
1068         nouveau_object_ref(NULL, (struct nouveau_object **)pobject);
1069
1070         return ERR_PTR(err);
1071 }
1072 EXPORT_SYMBOL(nouveau_platform_device_create_);
1073
1074 static int __init
1075 nouveau_drm_init(void)
1076 {
1077         if (nouveau_modeset == -1) {
1078 #ifdef CONFIG_VGA_CONSOLE
1079                 if (vgacon_text_force())
1080                         nouveau_modeset = 0;
1081 #endif
1082         }
1083
1084         if (!nouveau_modeset)
1085                 return 0;
1086
1087         nouveau_register_dsm_handler();
1088         return drm_pci_init(&driver, &nouveau_drm_pci_driver);
1089 }
1090
1091 static void __exit
1092 nouveau_drm_exit(void)
1093 {
1094         if (!nouveau_modeset)
1095                 return;
1096
1097         drm_pci_exit(&driver, &nouveau_drm_pci_driver);
1098         nouveau_unregister_dsm_handler();
1099 }
1100
1101 module_init(nouveau_drm_init);
1102 module_exit(nouveau_drm_exit);
1103
1104 MODULE_DEVICE_TABLE(pci, nouveau_drm_pci_table);
1105 MODULE_AUTHOR(DRIVER_AUTHOR);
1106 MODULE_DESCRIPTION(DRIVER_DESC);
1107 MODULE_LICENSE("GPL and additional rights");