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/device.h>
  36 #include <core/gpuobj.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 #include "nouveau_usif.h"
  55 #include "nouveau_connector.h"
  56 #include "nouveau_platform.h"
  57
  58 MODULE_PARM_DESC(config, "option string to pass to driver core");
  59 static char *nouveau_config;
  60 module_param_named(config, nouveau_config, charp, 0400);
  61
  62 MODULE_PARM_DESC(debug, "debug string to pass to driver core");
  63 static char *nouveau_debug;
  64 module_param_named(debug, nouveau_debug, charp, 0400);
  65
  66 MODULE_PARM_DESC(noaccel, "disable kernel/abi16 acceleration");
  67 static int nouveau_noaccel = 0;
  68 module_param_named(noaccel, nouveau_noaccel, int, 0400);
  69
  70 MODULE_PARM_DESC(modeset, "enable driver (default: auto, "
  71                           "0 = disabled, 1 = enabled, 2 = headless)");
  72 int nouveau_modeset = -1;
  73 module_param_named(modeset, nouveau_modeset, int, 0400);
  74
  75 MODULE_PARM_DESC(runpm, "disable (0), force enable (1), optimus only default (-1)");
  76 int nouveau_runtime_pm = -1;
  77 module_param_named(runpm, nouveau_runtime_pm, int, 0400);
  78
  79 static struct drm_driver driver_stub;
  80 static struct drm_driver driver_pci;
  81 static struct drm_driver driver_platform;
  82
  83 static u64
  84 nouveau_pci_name(struct pci_dev *pdev)
  85 {
  86         u64 name = (u64)pci_domain_nr(pdev->bus) << 32;
  87         name |= pdev->bus->number << 16;
  88         name |= PCI_SLOT(pdev->devfn) << 8;
  89         return name | PCI_FUNC(pdev->devfn);
  90 }
  91
  92 static u64
  93 nouveau_platform_name(struct platform_device *platformdev)
  94 {
  95         return platformdev->id;
  96 }
  97
  98 static u64
  99 nouveau_name(struct drm_device *dev)
 100 {
 101         if (dev->pdev)
 102                 return nouveau_pci_name(dev->pdev);
 103         else
 104                 return nouveau_platform_name(dev->platformdev);
 105 }
 106
 107 static int
 108 nouveau_cli_create(u64 name, const char *sname,
 109                    int size, void **pcli)
 110 {
 111         struct nouveau_cli *cli = *pcli = kzalloc(size, GFP_KERNEL);
 112         if (cli) {
 113                 int ret = nvif_client_init(NULL, NULL, sname, name,
 114                                            nouveau_config, nouveau_debug,
 115                                           &cli->base);
 116                 if (ret == 0) {
 117                         mutex_init(&cli->mutex);
 118                         usif_client_init(cli);
 119                 }
 120                 return ret;
 121         }
 122         return -ENOMEM;
 123 }
 124
 125 static void
 126 nouveau_cli_destroy(struct nouveau_cli *cli)
 127 {
 128         nvkm_vm_ref(NULL, &nvxx_client(&cli->base)->vm, NULL);
 129         nvif_client_fini(&cli->base);
 130         usif_client_fini(cli);
 131 }
 132
 133 static void
 134 nouveau_accel_fini(struct nouveau_drm *drm)
 135 {
 136         nouveau_channel_del(&drm->channel);
 137         nvif_object_fini(&drm->ntfy);
 138         nvkm_gpuobj_ref(NULL, &drm->notify);
 139         nvif_object_fini(&drm->nvsw);
 140         nouveau_channel_del(&drm->cechan);
 141         nvif_object_fini(&drm->ttm.copy);
 142         if (drm->fence)
 143                 nouveau_fence(drm)->dtor(drm);
 144 }
 145
 146 static void
 147 nouveau_accel_init(struct nouveau_drm *drm)
 148 {
 149         struct nvif_device *device = &drm->device;
 150         u32 arg0, arg1;
 151         u32 sclass[16];
 152         int ret, i;
 153
 154         if (nouveau_noaccel)
 155                 return;
 156
 157         /* initialise synchronisation routines */
 158         /*XXX: this is crap, but the fence/channel stuff is a little
 159          *     backwards in some places.  this will be fixed.
 160          */
 161         ret = nvif_object_sclass(&device->base, sclass, ARRAY_SIZE(sclass));
 162         if (ret < 0)
 163                 return;
 164
 165         for (ret = -ENOSYS, i = 0; ret && i < ARRAY_SIZE(sclass); i++) {
 166                 switch (sclass[i]) {
 167                 case NV03_CHANNEL_DMA:
 168                         ret = nv04_fence_create(drm);
 169                         break;
 170                 case NV10_CHANNEL_DMA:
 171                         ret = nv10_fence_create(drm);
 172                         break;
 173                 case NV17_CHANNEL_DMA:
 174                 case NV40_CHANNEL_DMA:
 175                         ret = nv17_fence_create(drm);
 176                         break;
 177                 case NV50_CHANNEL_GPFIFO:
 178                         ret = nv50_fence_create(drm);
 179                         break;
 180                 case G82_CHANNEL_GPFIFO:
 181                         ret = nv84_fence_create(drm);
 182                         break;
 183                 case FERMI_CHANNEL_GPFIFO:
 184                 case KEPLER_CHANNEL_GPFIFO_A:
 185                 case MAXWELL_CHANNEL_GPFIFO_A:
 186                         ret = nvc0_fence_create(drm);
 187                         break;
 188                 default:
 189                         break;
 190                 }
 191         }
 192
 193         if (ret) {
 194                 NV_ERROR(drm, "failed to initialise sync subsystem, %d\n", ret);
 195                 nouveau_accel_fini(drm);
 196                 return;
 197         }
 198
 199         if (device->info.family >= NV_DEVICE_INFO_V0_KEPLER) {
 200                 ret = nouveau_channel_new(drm, &drm->device, NVDRM_CHAN + 1,
 201                                           KEPLER_CHANNEL_GPFIFO_A_V0_ENGINE_CE0|
 202                                           KEPLER_CHANNEL_GPFIFO_A_V0_ENGINE_CE1,
 203                                           0, &drm->cechan);
 204                 if (ret)
 205                         NV_ERROR(drm, "failed to create ce channel, %d\n", ret);
 206
 207                 arg0 = KEPLER_CHANNEL_GPFIFO_A_V0_ENGINE_GR;
 208                 arg1 = 1;
 209         } else
 210         if (device->info.chipset >= 0xa3 &&
 211             device->info.chipset != 0xaa &&
 212             device->info.chipset != 0xac) {
 213                 ret = nouveau_channel_new(drm, &drm->device, NVDRM_CHAN + 1,
 214                                           NvDmaFB, NvDmaTT, &drm->cechan);
 215                 if (ret)
 216                         NV_ERROR(drm, "failed to create ce channel, %d\n", ret);
 217
 218                 arg0 = NvDmaFB;
 219                 arg1 = NvDmaTT;
 220         } else {
 221                 arg0 = NvDmaFB;
 222                 arg1 = NvDmaTT;
 223         }
 224
 225         ret = nouveau_channel_new(drm, &drm->device, NVDRM_CHAN, arg0, arg1,
 226                                  &drm->channel);
 227         if (ret) {
 228                 NV_ERROR(drm, "failed to create kernel channel, %d\n", ret);
 229                 nouveau_accel_fini(drm);
 230                 return;
 231         }
 232
 233         ret = nvif_object_init(drm->channel->object, NULL, NVDRM_NVSW,
 234                                nouveau_abi16_swclass(drm), NULL, 0, &drm->nvsw);
 235         if (ret == 0) {
 236                 struct nvkm_sw_chan *swch;
 237                 ret = RING_SPACE(drm->channel, 2);
 238                 if (ret == 0) {
 239                         if (device->info.family < NV_DEVICE_INFO_V0_FERMI) {
 240                                 BEGIN_NV04(drm->channel, NvSubSw, 0, 1);
 241                                 OUT_RING  (drm->channel, NVDRM_NVSW);
 242                         } else
 243                         if (device->info.family < NV_DEVICE_INFO_V0_KEPLER) {
 244                                 BEGIN_NVC0(drm->channel, FermiSw, 0, 1);
 245                                 OUT_RING  (drm->channel, 0x001f0000);
 246                         }
 247                 }
 248                 swch = (void *)nvxx_object(&drm->nvsw)->parent;
 249                 swch->flip = nouveau_flip_complete;
 250                 swch->flip_data = drm->channel;
 251         }
 252
 253         if (ret) {
 254                 NV_ERROR(drm, "failed to allocate software object, %d\n", ret);
 255                 nouveau_accel_fini(drm);
 256                 return;
 257         }
 258
 259         if (device->info.family < NV_DEVICE_INFO_V0_FERMI) {
 260                 ret = nvkm_gpuobj_new(nvxx_object(&drm->device), NULL, 32,
 261                                       0, 0, &drm->notify);
 262                 if (ret) {
 263                         NV_ERROR(drm, "failed to allocate notifier, %d\n", ret);
 264                         nouveau_accel_fini(drm);
 265                         return;
 266                 }
 267
 268                 ret = nvif_object_init(drm->channel->object, NULL, NvNotify0,
 269                                        NV_DMA_IN_MEMORY,
 270                                        &(struct nv_dma_v0) {
 271                                                 .target = NV_DMA_V0_TARGET_VRAM,
 272                                                 .access = NV_DMA_V0_ACCESS_RDWR,
 273                                                 .start = drm->notify->addr,
 274                                                 .limit = drm->notify->addr + 31
 275                                        }, sizeof(struct nv_dma_v0),
 276                                        &drm->ntfy);
 277                 if (ret) {
 278                         nouveau_accel_fini(drm);
 279                         return;
 280                 }
 281         }
 282
 283
 284         nouveau_bo_move_init(drm);
 285 }
 286
 287 static int nouveau_drm_probe(struct pci_dev *pdev,
 288                              const struct pci_device_id *pent)
 289 {
 290         struct nvkm_device *device;
 291         struct apertures_struct *aper;
 292         bool boot = false;
 293         int ret;
 294
 295         /* remove conflicting drivers (vesafb, efifb etc) */
 296         aper = alloc_apertures(3);
 297         if (!aper)
 298                 return -ENOMEM;
 299
 300         aper->ranges[0].base = pci_resource_start(pdev, 1);
 301         aper->ranges[0].size = pci_resource_len(pdev, 1);
 302         aper->count = 1;
 303
 304         if (pci_resource_len(pdev, 2)) {
 305                 aper->ranges[aper->count].base = pci_resource_start(pdev, 2);
 306                 aper->ranges[aper->count].size = pci_resource_len(pdev, 2);
 307                 aper->count++;
 308         }
 309
 310         if (pci_resource_len(pdev, 3)) {
 311                 aper->ranges[aper->count].base = pci_resource_start(pdev, 3);
 312                 aper->ranges[aper->count].size = pci_resource_len(pdev, 3);
 313                 aper->count++;
 314         }
 315
 316 #ifdef CONFIG_X86
 317         boot = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
 318 #endif
 319         if (nouveau_modeset != 2)
 320                 remove_conflicting_framebuffers(aper, "nouveaufb", boot);
 321         kfree(aper);
 322
 323         ret = nvkm_device_create(pdev, NVKM_BUS_PCI,
 324                                  nouveau_pci_name(pdev), pci_name(pdev),
 325                                  nouveau_config, nouveau_debug, &device);
 326         if (ret)
 327                 return ret;
 328
 329         pci_set_master(pdev);
 330
 331         ret = drm_get_pci_dev(pdev, pent, &driver_pci);
 332         if (ret) {
 333                 nvkm_object_ref(NULL, (struct nvkm_object **)&device);
 334                 return ret;
 335         }
 336
 337         return 0;
 338 }
 339
 340 #define PCI_CLASS_MULTIMEDIA_HD_AUDIO 0x0403
 341
 342 static void
 343 nouveau_get_hdmi_dev(struct nouveau_drm *drm)
 344 {
 345         struct pci_dev *pdev = drm->dev->pdev;
 346
 347         if (!pdev) {
 348                 DRM_INFO("not a PCI device; no HDMI\n");
 349                 drm->hdmi_device = NULL;
 350                 return;
 351         }
 352
 353         /* subfunction one is a hdmi audio device? */
 354         drm->hdmi_device = pci_get_bus_and_slot((unsigned int)pdev->bus->number,
 355                                                 PCI_DEVFN(PCI_SLOT(pdev->devfn), 1));
 356
 357         if (!drm->hdmi_device) {
 358                 NV_DEBUG(drm, "hdmi device not found %d %d %d\n", pdev->bus->number, PCI_SLOT(pdev->devfn), 1);
 359                 return;
 360         }
 361
 362         if ((drm->hdmi_device->class >> 8) != PCI_CLASS_MULTIMEDIA_HD_AUDIO) {
 363                 NV_DEBUG(drm, "possible hdmi device not audio %d\n", drm->hdmi_device->class);
 364                 pci_dev_put(drm->hdmi_device);
 365                 drm->hdmi_device = NULL;
 366                 return;
 367         }
 368 }
 369
 370 static int
 371 nouveau_drm_load(struct drm_device *dev, unsigned long flags)
 372 {
 373         struct pci_dev *pdev = dev->pdev;
 374         struct nouveau_drm *drm;
 375         int ret;
 376
 377         ret = nouveau_cli_create(nouveau_name(dev), "DRM", sizeof(*drm),
 378                                  (void **)&drm);
 379         if (ret)
 380                 return ret;
 381
 382         dev->dev_private = drm;
 383         drm->dev = dev;
 384         nvxx_client(&drm->client.base)->debug =
 385                 nvkm_dbgopt(nouveau_debug, "DRM");
 386
 387         INIT_LIST_HEAD(&drm->clients);
 388         spin_lock_init(&drm->tile.lock);
 389
 390         nouveau_get_hdmi_dev(drm);
 391
 392         /* make sure AGP controller is in a consistent state before we
 393          * (possibly) execute vbios init tables (see nouveau_agp.h)
 394          */
 395         if (pdev && drm_pci_device_is_agp(dev) && dev->agp) {
 396                 const u64 enables = NV_DEVICE_V0_DISABLE_IDENTIFY |
 397                                     NV_DEVICE_V0_DISABLE_MMIO;
 398                 /* dummy device object, doesn't init anything, but allows
 399                  * agp code access to registers
 400                  */
 401                 ret = nvif_device_init(&drm->client.base.base, NULL,
 402                                        NVDRM_DEVICE, NV_DEVICE,
 403                                        &(struct nv_device_v0) {
 404                                                 .device = ~0,
 405                                                 .disable = ~enables,
 406                                                 .debug0 = ~0,
 407                                        }, sizeof(struct nv_device_v0),
 408                                        &drm->device);
 409                 if (ret)
 410                         goto fail_device;
 411
 412                 nouveau_agp_reset(drm);
 413                 nvif_device_fini(&drm->device);
 414         }
 415
 416         ret = nvif_device_init(&drm->client.base.base, NULL, NVDRM_DEVICE,
 417                                NV_DEVICE,
 418                                &(struct nv_device_v0) {
 419                                         .device = ~0,
 420                                         .disable = 0,
 421                                         .debug0 = 0,
 422                                }, sizeof(struct nv_device_v0),
 423                                &drm->device);
 424         if (ret)
 425                 goto fail_device;
 426
 427         dev->irq_enabled = true;
 428
 429         /* workaround an odd issue on nvc1 by disabling the device's
 430          * nosnoop capability.  hopefully won't cause issues until a
 431          * better fix is found - assuming there is one...
 432          */
 433         if (drm->device.info.chipset == 0xc1)
 434                 nvif_mask(&drm->device, 0x00088080, 0x00000800, 0x00000000);
 435
 436         nouveau_vga_init(drm);
 437         nouveau_agp_init(drm);
 438
 439         if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
 440                 ret = nvkm_vm_new(nvxx_device(&drm->device), 0, (1ULL << 40),
 441                                   0x1000, &drm->client.vm);
 442                 if (ret)
 443                         goto fail_device;
 444
 445                 nvxx_client(&drm->client.base)->vm = drm->client.vm;
 446         }
 447
 448         ret = nouveau_ttm_init(drm);
 449         if (ret)
 450                 goto fail_ttm;
 451
 452         ret = nouveau_bios_init(dev);
 453         if (ret)
 454                 goto fail_bios;
 455
 456         ret = nouveau_display_create(dev);
 457         if (ret)
 458                 goto fail_dispctor;
 459
 460         if (dev->mode_config.num_crtc) {
 461                 ret = nouveau_display_init(dev);
 462                 if (ret)
 463                         goto fail_dispinit;
 464         }
 465
 466         nouveau_sysfs_init(dev);
 467         nouveau_hwmon_init(dev);
 468         nouveau_accel_init(drm);
 469         nouveau_fbcon_init(dev);
 470
 471         if (nouveau_runtime_pm != 0) {
 472                 pm_runtime_use_autosuspend(dev->dev);
 473                 pm_runtime_set_autosuspend_delay(dev->dev, 5000);
 474                 pm_runtime_set_active(dev->dev);
 475                 pm_runtime_allow(dev->dev);
 476                 pm_runtime_mark_last_busy(dev->dev);
 477                 pm_runtime_put(dev->dev);
 478         }
 479         return 0;
 480
 481 fail_dispinit:
 482         nouveau_display_destroy(dev);
 483 fail_dispctor:
 484         nouveau_bios_takedown(dev);
 485 fail_bios:
 486         nouveau_ttm_fini(drm);
 487 fail_ttm:
 488         nouveau_agp_fini(drm);
 489         nouveau_vga_fini(drm);
 490 fail_device:
 491         nvif_device_fini(&drm->device);
 492         nouveau_cli_destroy(&drm->client);
 493         return ret;
 494 }
 495
 496 static int
 497 nouveau_drm_unload(struct drm_device *dev)
 498 {
 499         struct nouveau_drm *drm = nouveau_drm(dev);
 500
 501         pm_runtime_get_sync(dev->dev);
 502         nouveau_fbcon_fini(dev);
 503         nouveau_accel_fini(drm);
 504         nouveau_hwmon_fini(dev);
 505         nouveau_sysfs_fini(dev);
 506
 507         if (dev->mode_config.num_crtc)
 508                 nouveau_display_fini(dev);
 509         nouveau_display_destroy(dev);
 510
 511         nouveau_bios_takedown(dev);
 512
 513         nouveau_ttm_fini(drm);
 514         nouveau_agp_fini(drm);
 515         nouveau_vga_fini(drm);
 516
 517         nvif_device_fini(&drm->device);
 518         if (drm->hdmi_device)
 519                 pci_dev_put(drm->hdmi_device);
 520         nouveau_cli_destroy(&drm->client);
 521         return 0;
 522 }
 523
 524 void
 525 nouveau_drm_device_remove(struct drm_device *dev)
 526 {
 527         struct nouveau_drm *drm = nouveau_drm(dev);
 528         struct nvkm_client *client;
 529         struct nvkm_object *device;
 530
 531         dev->irq_enabled = false;
 532         client = nvxx_client(&drm->client.base);
 533         device = client->device;
 534         drm_put_dev(dev);
 535
 536         nvkm_object_ref(NULL, &device);
 537         nvkm_object_debug();
 538 }
 539
 540 static void
 541 nouveau_drm_remove(struct pci_dev *pdev)
 542 {
 543         struct drm_device *dev = pci_get_drvdata(pdev);
 544
 545         nouveau_drm_device_remove(dev);
 546 }
 547
 548 static int
 549 nouveau_do_suspend(struct drm_device *dev, bool runtime)
 550 {
 551         struct nouveau_drm *drm = nouveau_drm(dev);
 552         struct nouveau_cli *cli;
 553         int ret;
 554
 555         if (dev->mode_config.num_crtc) {
 556                 NV_INFO(drm, "suspending console...\n");
 557                 nouveau_fbcon_set_suspend(dev, 1);
 558                 NV_INFO(drm, "suspending display...\n");
 559                 ret = nouveau_display_suspend(dev, runtime);
 560                 if (ret)
 561                         return ret;
 562         }
 563
 564         NV_INFO(drm, "evicting buffers...\n");
 565         ttm_bo_evict_mm(&drm->ttm.bdev, TTM_PL_VRAM);
 566
 567         NV_INFO(drm, "waiting for kernel channels to go idle...\n");
 568         if (drm->cechan) {
 569                 ret = nouveau_channel_idle(drm->cechan);
 570                 if (ret)
 571                         goto fail_display;
 572         }
 573
 574         if (drm->channel) {
 575                 ret = nouveau_channel_idle(drm->channel);
 576                 if (ret)
 577                         goto fail_display;
 578         }
 579
 580         NV_INFO(drm, "suspending client object trees...\n");
 581         if (drm->fence && nouveau_fence(drm)->suspend) {
 582                 if (!nouveau_fence(drm)->suspend(drm)) {
 583                         ret = -ENOMEM;
 584                         goto fail_display;
 585                 }
 586         }
 587
 588         list_for_each_entry(cli, &drm->clients, head) {
 589                 ret = nvif_client_suspend(&cli->base);
 590                 if (ret)
 591                         goto fail_client;
 592         }
 593
 594         NV_INFO(drm, "suspending kernel object tree...\n");
 595         ret = nvif_client_suspend(&drm->client.base);
 596         if (ret)
 597                 goto fail_client;
 598
 599         nouveau_agp_fini(drm);
 600         return 0;
 601
 602 fail_client:
 603         list_for_each_entry_continue_reverse(cli, &drm->clients, head) {
 604                 nvif_client_resume(&cli->base);
 605         }
 606
 607         if (drm->fence && nouveau_fence(drm)->resume)
 608                 nouveau_fence(drm)->resume(drm);
 609
 610 fail_display:
 611         if (dev->mode_config.num_crtc) {
 612                 NV_INFO(drm, "resuming display...\n");
 613                 nouveau_display_resume(dev, runtime);
 614         }
 615         return ret;
 616 }
 617
 618 static int
 619 nouveau_do_resume(struct drm_device *dev, bool runtime)
 620 {
 621         struct nouveau_drm *drm = nouveau_drm(dev);
 622         struct nouveau_cli *cli;
 623
 624         NV_INFO(drm, "re-enabling device...\n");
 625
 626         nouveau_agp_reset(drm);
 627
 628         NV_INFO(drm, "resuming kernel object tree...\n");
 629         nvif_client_resume(&drm->client.base);
 630         nouveau_agp_init(drm);
 631
 632         NV_INFO(drm, "resuming client object trees...\n");
 633         if (drm->fence && nouveau_fence(drm)->resume)
 634                 nouveau_fence(drm)->resume(drm);
 635
 636         list_for_each_entry(cli, &drm->clients, head) {
 637                 nvif_client_resume(&cli->base);
 638         }
 639
 640         nouveau_run_vbios_init(dev);
 641
 642         if (dev->mode_config.num_crtc) {
 643                 NV_INFO(drm, "resuming display...\n");
 644                 nouveau_display_resume(dev, runtime);
 645                 NV_INFO(drm, "resuming console...\n");
 646                 nouveau_fbcon_set_suspend(dev, 0);
 647         }
 648
 649         return 0;
 650 }
 651
 652 int
 653 nouveau_pmops_suspend(struct device *dev)
 654 {
 655         struct pci_dev *pdev = to_pci_dev(dev);
 656         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 657         int ret;
 658
 659         if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF ||
 660             drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF)
 661                 return 0;
 662
 663         ret = nouveau_do_suspend(drm_dev, false);
 664         if (ret)
 665                 return ret;
 666
 667         pci_save_state(pdev);
 668         pci_disable_device(pdev);
 669         pci_set_power_state(pdev, PCI_D3hot);
 670         udelay(200);
 671         return 0;
 672 }
 673
 674 int
 675 nouveau_pmops_resume(struct device *dev)
 676 {
 677         struct pci_dev *pdev = to_pci_dev(dev);
 678         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 679         int ret;
 680
 681         if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF ||
 682             drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF)
 683                 return 0;
 684
 685         pci_set_power_state(pdev, PCI_D0);
 686         pci_restore_state(pdev);
 687         ret = pci_enable_device(pdev);
 688         if (ret)
 689                 return ret;
 690         pci_set_master(pdev);
 691
 692         return nouveau_do_resume(drm_dev, false);
 693 }
 694
 695 static int
 696 nouveau_pmops_freeze(struct device *dev)
 697 {
 698         struct pci_dev *pdev = to_pci_dev(dev);
 699         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 700         return nouveau_do_suspend(drm_dev, false);
 701 }
 702
 703 static int
 704 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         return nouveau_do_resume(drm_dev, false);
 709 }
 710
 711 static int
 712 nouveau_pmops_runtime_suspend(struct device *dev)
 713 {
 714         struct pci_dev *pdev = to_pci_dev(dev);
 715         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 716         int ret;
 717
 718         if (nouveau_runtime_pm == 0) {
 719                 pm_runtime_forbid(dev);
 720                 return -EBUSY;
 721         }
 722
 723         /* are we optimus enabled? */
 724         if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) {
 725                 DRM_DEBUG_DRIVER("failing to power off - not optimus\n");
 726                 pm_runtime_forbid(dev);
 727                 return -EBUSY;
 728         }
 729
 730         nv_debug_level(SILENT);
 731         drm_kms_helper_poll_disable(drm_dev);
 732         vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_OFF);
 733         nouveau_switcheroo_optimus_dsm();
 734         ret = nouveau_do_suspend(drm_dev, true);
 735         pci_save_state(pdev);
 736         pci_disable_device(pdev);
 737         pci_ignore_hotplug(pdev);
 738         pci_set_power_state(pdev, PCI_D3cold);
 739         drm_dev->switch_power_state = DRM_SWITCH_POWER_DYNAMIC_OFF;
 740         return ret;
 741 }
 742
 743 static int
 744 nouveau_pmops_runtime_resume(struct device *dev)
 745 {
 746         struct pci_dev *pdev = to_pci_dev(dev);
 747         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 748         struct nvif_device *device = &nouveau_drm(drm_dev)->device;
 749         int ret;
 750
 751         if (nouveau_runtime_pm == 0)
 752                 return -EINVAL;
 753
 754         pci_set_power_state(pdev, PCI_D0);
 755         pci_restore_state(pdev);
 756         ret = pci_enable_device(pdev);
 757         if (ret)
 758                 return ret;
 759         pci_set_master(pdev);
 760
 761         ret = nouveau_do_resume(drm_dev, true);
 762         drm_kms_helper_poll_enable(drm_dev);
 763         /* do magic */
 764         nvif_mask(device, 0x88488, (1 << 25), (1 << 25));
 765         vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_ON);
 766         drm_dev->switch_power_state = DRM_SWITCH_POWER_ON;
 767         nv_debug_level(NORMAL);
 768         return ret;
 769 }
 770
 771 static int
 772 nouveau_pmops_runtime_idle(struct device *dev)
 773 {
 774         struct pci_dev *pdev = to_pci_dev(dev);
 775         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 776         struct nouveau_drm *drm = nouveau_drm(drm_dev);
 777         struct drm_crtc *crtc;
 778
 779         if (nouveau_runtime_pm == 0) {
 780                 pm_runtime_forbid(dev);
 781                 return -EBUSY;
 782         }
 783
 784         /* are we optimus enabled? */
 785         if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) {
 786                 DRM_DEBUG_DRIVER("failing to power off - not optimus\n");
 787                 pm_runtime_forbid(dev);
 788                 return -EBUSY;
 789         }
 790
 791         /* if we have a hdmi audio device - make sure it has a driver loaded */
 792         if (drm->hdmi_device) {
 793                 if (!drm->hdmi_device->driver) {
 794                         DRM_DEBUG_DRIVER("failing to power off - no HDMI audio driver loaded\n");
 795                         pm_runtime_mark_last_busy(dev);
 796                         return -EBUSY;
 797                 }
 798         }
 799
 800         list_for_each_entry(crtc, &drm->dev->mode_config.crtc_list, head) {
 801                 if (crtc->enabled) {
 802                         DRM_DEBUG_DRIVER("failing to power off - crtc active\n");
 803                         return -EBUSY;
 804                 }
 805         }
 806         pm_runtime_mark_last_busy(dev);
 807         pm_runtime_autosuspend(dev);
 808         /* we don't want the main rpm_idle to call suspend - we want to autosuspend */
 809         return 1;
 810 }
 811
 812 static int
 813 nouveau_drm_open(struct drm_device *dev, struct drm_file *fpriv)
 814 {
 815         struct nouveau_drm *drm = nouveau_drm(dev);
 816         struct nouveau_cli *cli;
 817         char name[32], tmpname[TASK_COMM_LEN];
 818         int ret;
 819
 820         /* need to bring up power immediately if opening device */
 821         ret = pm_runtime_get_sync(dev->dev);
 822         if (ret < 0 && ret != -EACCES)
 823                 return ret;
 824
 825         get_task_comm(tmpname, current);
 826         snprintf(name, sizeof(name), "%s[%d]", tmpname, pid_nr(fpriv->pid));
 827
 828         ret = nouveau_cli_create(nouveau_name(dev), name, sizeof(*cli),
 829                         (void **)&cli);
 830
 831         if (ret)
 832                 goto out_suspend;
 833
 834         cli->base.super = false;
 835
 836         if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
 837                 ret = nvkm_vm_new(nvxx_device(&drm->device), 0, (1ULL << 40),
 838                                   0x1000, &cli->vm);
 839                 if (ret) {
 840                         nouveau_cli_destroy(cli);
 841                         goto out_suspend;
 842                 }
 843
 844                 nvxx_client(&cli->base)->vm = cli->vm;
 845         }
 846
 847         fpriv->driver_priv = cli;
 848
 849         mutex_lock(&drm->client.mutex);
 850         list_add(&cli->head, &drm->clients);
 851         mutex_unlock(&drm->client.mutex);
 852
 853 out_suspend:
 854         pm_runtime_mark_last_busy(dev->dev);
 855         pm_runtime_put_autosuspend(dev->dev);
 856
 857         return ret;
 858 }
 859
 860 static void
 861 nouveau_drm_preclose(struct drm_device *dev, struct drm_file *fpriv)
 862 {
 863         struct nouveau_cli *cli = nouveau_cli(fpriv);
 864         struct nouveau_drm *drm = nouveau_drm(dev);
 865
 866         pm_runtime_get_sync(dev->dev);
 867
 868         if (cli->abi16)
 869                 nouveau_abi16_fini(cli->abi16);
 870
 871         mutex_lock(&drm->client.mutex);
 872         list_del(&cli->head);
 873         mutex_unlock(&drm->client.mutex);
 874
 875 }
 876
 877 static void
 878 nouveau_drm_postclose(struct drm_device *dev, struct drm_file *fpriv)
 879 {
 880         struct nouveau_cli *cli = nouveau_cli(fpriv);
 881         nouveau_cli_destroy(cli);
 882         pm_runtime_mark_last_busy(dev->dev);
 883         pm_runtime_put_autosuspend(dev->dev);
 884 }
 885
 886 static const struct drm_ioctl_desc
 887 nouveau_ioctls[] = {
 888         DRM_IOCTL_DEF_DRV(NOUVEAU_GETPARAM, nouveau_abi16_ioctl_getparam, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 889         DRM_IOCTL_DEF_DRV(NOUVEAU_SETPARAM, nouveau_abi16_ioctl_setparam, DRM_UNLOCKED|DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
 890         DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_ALLOC, nouveau_abi16_ioctl_channel_alloc, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 891         DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_FREE, nouveau_abi16_ioctl_channel_free, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 892         DRM_IOCTL_DEF_DRV(NOUVEAU_GROBJ_ALLOC, nouveau_abi16_ioctl_grobj_alloc, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 893         DRM_IOCTL_DEF_DRV(NOUVEAU_NOTIFIEROBJ_ALLOC, nouveau_abi16_ioctl_notifierobj_alloc, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 894         DRM_IOCTL_DEF_DRV(NOUVEAU_GPUOBJ_FREE, nouveau_abi16_ioctl_gpuobj_free, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 895         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_NEW, nouveau_gem_ioctl_new, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 896         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_PUSHBUF, nouveau_gem_ioctl_pushbuf, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 897         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_PREP, nouveau_gem_ioctl_cpu_prep, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 898         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_FINI, nouveau_gem_ioctl_cpu_fini, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 899         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_INFO, nouveau_gem_ioctl_info, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 900 };
 901
 902 long
 903 nouveau_drm_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 904 {
 905         struct drm_file *filp = file->private_data;
 906         struct drm_device *dev = filp->minor->dev;
 907         long ret;
 908
 909         ret = pm_runtime_get_sync(dev->dev);
 910         if (ret < 0 && ret != -EACCES)
 911                 return ret;
 912
 913         switch (_IOC_NR(cmd) - DRM_COMMAND_BASE) {
 914         case DRM_NOUVEAU_NVIF:
 915                 ret = usif_ioctl(filp, (void __user *)arg, _IOC_SIZE(cmd));
 916                 break;
 917         default:
 918                 ret = drm_ioctl(file, cmd, arg);
 919                 break;
 920         }
 921
 922         pm_runtime_mark_last_busy(dev->dev);
 923         pm_runtime_put_autosuspend(dev->dev);
 924         return ret;
 925 }
 926
 927 static const struct file_operations
 928 nouveau_driver_fops = {
 929         .owner = THIS_MODULE,
 930         .open = drm_open,
 931         .release = drm_release,
 932         .unlocked_ioctl = nouveau_drm_ioctl,
 933         .mmap = nouveau_ttm_mmap,
 934         .poll = drm_poll,
 935         .read = drm_read,
 936 #if defined(CONFIG_COMPAT)
 937         .compat_ioctl = nouveau_compat_ioctl,
 938 #endif
 939         .llseek = noop_llseek,
 940 };
 941
 942 static struct drm_driver
 943 driver_stub = {
 944         .driver_features =
 945                 DRIVER_USE_AGP |
 946                 DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME | DRIVER_RENDER,
 947
 948         .load = nouveau_drm_load,
 949         .unload = nouveau_drm_unload,
 950         .open = nouveau_drm_open,
 951         .preclose = nouveau_drm_preclose,
 952         .postclose = nouveau_drm_postclose,
 953         .lastclose = nouveau_vga_lastclose,
 954
 955 #if defined(CONFIG_DEBUG_FS)
 956         .debugfs_init = nouveau_debugfs_init,
 957         .debugfs_cleanup = nouveau_debugfs_takedown,
 958 #endif
 959
 960         .get_vblank_counter = drm_vblank_count,
 961         .enable_vblank = nouveau_display_vblank_enable,
 962         .disable_vblank = nouveau_display_vblank_disable,
 963         .get_scanout_position = nouveau_display_scanoutpos,
 964         .get_vblank_timestamp = nouveau_display_vblstamp,
 965
 966         .ioctls = nouveau_ioctls,
 967         .num_ioctls = ARRAY_SIZE(nouveau_ioctls),
 968         .fops = &nouveau_driver_fops,
 969
 970         .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
 971         .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
 972         .gem_prime_export = drm_gem_prime_export,
 973         .gem_prime_import = drm_gem_prime_import,
 974         .gem_prime_pin = nouveau_gem_prime_pin,
 975         .gem_prime_res_obj = nouveau_gem_prime_res_obj,
 976         .gem_prime_unpin = nouveau_gem_prime_unpin,
 977         .gem_prime_get_sg_table = nouveau_gem_prime_get_sg_table,
 978         .gem_prime_import_sg_table = nouveau_gem_prime_import_sg_table,
 979         .gem_prime_vmap = nouveau_gem_prime_vmap,
 980         .gem_prime_vunmap = nouveau_gem_prime_vunmap,
 981
 982         .gem_free_object = nouveau_gem_object_del,
 983         .gem_open_object = nouveau_gem_object_open,
 984         .gem_close_object = nouveau_gem_object_close,
 985
 986         .dumb_create = nouveau_display_dumb_create,
 987         .dumb_map_offset = nouveau_display_dumb_map_offset,
 988         .dumb_destroy = drm_gem_dumb_destroy,
 989
 990         .name = DRIVER_NAME,
 991         .desc = DRIVER_DESC,
 992 #ifdef GIT_REVISION
 993         .date = GIT_REVISION,
 994 #else
 995         .date = DRIVER_DATE,
 996 #endif
 997         .major = DRIVER_MAJOR,
 998         .minor = DRIVER_MINOR,
 999         .patchlevel = DRIVER_PATCHLEVEL,
1000 };
1001
1002 static struct pci_device_id
1003 nouveau_drm_pci_table[] = {
1004         {
1005                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID),
1006                 .class = PCI_BASE_CLASS_DISPLAY << 16,
1007                 .class_mask  = 0xff << 16,
1008         },
1009         {
1010                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA_SGS, PCI_ANY_ID),
1011                 .class = PCI_BASE_CLASS_DISPLAY << 16,
1012                 .class_mask  = 0xff << 16,
1013         },
1014         {}
1015 };
1016
1017 static void nouveau_display_options(void)
1018 {
1019         DRM_DEBUG_DRIVER("Loading Nouveau with parameters:\n");
1020
1021         DRM_DEBUG_DRIVER("... tv_disable   : %d\n", nouveau_tv_disable);
1022         DRM_DEBUG_DRIVER("... ignorelid    : %d\n", nouveau_ignorelid);
1023         DRM_DEBUG_DRIVER("... duallink     : %d\n", nouveau_duallink);
1024         DRM_DEBUG_DRIVER("... nofbaccel    : %d\n", nouveau_nofbaccel);
1025         DRM_DEBUG_DRIVER("... config       : %s\n", nouveau_config);
1026         DRM_DEBUG_DRIVER("... debug        : %s\n", nouveau_debug);
1027         DRM_DEBUG_DRIVER("... noaccel      : %d\n", nouveau_noaccel);
1028         DRM_DEBUG_DRIVER("... modeset      : %d\n", nouveau_modeset);
1029         DRM_DEBUG_DRIVER("... runpm        : %d\n", nouveau_runtime_pm);
1030         DRM_DEBUG_DRIVER("... vram_pushbuf : %d\n", nouveau_vram_pushbuf);
1031         DRM_DEBUG_DRIVER("... pstate       : %d\n", nouveau_pstate);
1032 }
1033
1034 static const struct dev_pm_ops nouveau_pm_ops = {
1035         .suspend = nouveau_pmops_suspend,
1036         .resume = nouveau_pmops_resume,
1037         .freeze = nouveau_pmops_freeze,
1038         .thaw = nouveau_pmops_thaw,
1039         .poweroff = nouveau_pmops_freeze,
1040         .restore = nouveau_pmops_resume,
1041         .runtime_suspend = nouveau_pmops_runtime_suspend,
1042         .runtime_resume = nouveau_pmops_runtime_resume,
1043         .runtime_idle = nouveau_pmops_runtime_idle,
1044 };
1045
1046 static struct pci_driver
1047 nouveau_drm_pci_driver = {
1048         .name = "nouveau",
1049         .id_table = nouveau_drm_pci_table,
1050         .probe = nouveau_drm_probe,
1051         .remove = nouveau_drm_remove,
1052         .driver.pm = &nouveau_pm_ops,
1053 };
1054
1055 struct drm_device *
1056 nouveau_platform_device_create_(struct platform_device *pdev, int size,
1057                                 void **pobject)
1058 {
1059         struct drm_device *drm;
1060         int err;
1061
1062         err = nvkm_device_create_(pdev, NVKM_BUS_PLATFORM,
1063                                   nouveau_platform_name(pdev),
1064                                   dev_name(&pdev->dev), nouveau_config,
1065                                   nouveau_debug, size, pobject);
1066         if (err)
1067                 return ERR_PTR(err);
1068
1069         drm = drm_dev_alloc(&driver_platform, &pdev->dev);
1070         if (!drm) {
1071                 err = -ENOMEM;
1072                 goto err_free;
1073         }
1074
1075         err = drm_dev_set_unique(drm, "%s", dev_name(&pdev->dev));
1076         if (err < 0)
1077                 goto err_free;
1078
1079         drm->platformdev = pdev;
1080         platform_set_drvdata(pdev, drm);
1081
1082         return drm;
1083
1084 err_free:
1085         nvkm_object_ref(NULL, (struct nvkm_object **)pobject);
1086
1087         return ERR_PTR(err);
1088 }
1089
1090 static int __init
1091 nouveau_drm_init(void)
1092 {
1093         driver_pci = driver_stub;
1094         driver_pci.set_busid = drm_pci_set_busid;
1095         driver_platform = driver_stub;
1096         driver_platform.set_busid = drm_platform_set_busid;
1097
1098         nouveau_display_options();
1099
1100         if (nouveau_modeset == -1) {
1101 #ifdef CONFIG_VGA_CONSOLE
1102                 if (vgacon_text_force())
1103                         nouveau_modeset = 0;
1104 #endif
1105         }
1106
1107         if (!nouveau_modeset)
1108                 return 0;
1109
1110 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER
1111         platform_driver_register(&nouveau_platform_driver);
1112 #endif
1113
1114         nouveau_register_dsm_handler();
1115         return drm_pci_init(&driver_pci, &nouveau_drm_pci_driver);
1116 }
1117
1118 static void __exit
1119 nouveau_drm_exit(void)
1120 {
1121         if (!nouveau_modeset)
1122                 return;
1123
1124         drm_pci_exit(&driver_pci, &nouveau_drm_pci_driver);
1125         nouveau_unregister_dsm_handler();
1126
1127 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER
1128         platform_driver_unregister(&nouveau_platform_driver);
1129 #endif
1130 }
1131
1132 module_init(nouveau_drm_init);
1133 module_exit(nouveau_drm_exit);
1134
1135 MODULE_DEVICE_TABLE(pci, nouveau_drm_pci_table);
1136 MODULE_AUTHOR(DRIVER_AUTHOR);
1137 MODULE_DESCRIPTION(DRIVER_DESC);
1138 MODULE_LICENSE("GPL and additional rights");