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 <drm/drmP.h>
  33 #include <drm/drm_crtc_helper.h>
  34
  35 #include <core/gpuobj.h>
  36 #include <core/option.h>
  37 #include <core/pci.h>
  38 #include <core/tegra.h>
  39
  40 #include <nvif/driver.h>
  41 #include <nvif/fifo.h>
  42 #include <nvif/user.h>
  43
  44 #include <nvif/class.h>
  45 #include <nvif/cl0002.h>
  46 #include <nvif/cla06f.h>
  47
  48 #include "nouveau_drv.h"
  49 #include "nouveau_dma.h"
  50 #include "nouveau_ttm.h"
  51 #include "nouveau_gem.h"
  52 #include "nouveau_vga.h"
  53 #include "nouveau_led.h"
  54 #include "nouveau_hwmon.h"
  55 #include "nouveau_acpi.h"
  56 #include "nouveau_bios.h"
  57 #include "nouveau_ioctl.h"
  58 #include "nouveau_abi16.h"
  59 #include "nouveau_fbcon.h"
  60 #include "nouveau_fence.h"
  61 #include "nouveau_debugfs.h"
  62 #include "nouveau_usif.h"
  63 #include "nouveau_connector.h"
  64 #include "nouveau_platform.h"
  65
  66 MODULE_PARM_DESC(config, "option string to pass to driver core");
  67 static char *nouveau_config;
  68 module_param_named(config, nouveau_config, charp, 0400);
  69
  70 MODULE_PARM_DESC(debug, "debug string to pass to driver core");
  71 static char *nouveau_debug;
  72 module_param_named(debug, nouveau_debug, charp, 0400);
  73
  74 MODULE_PARM_DESC(noaccel, "disable kernel/abi16 acceleration");
  75 static int nouveau_noaccel = 0;
  76 module_param_named(noaccel, nouveau_noaccel, int, 0400);
  77
  78 MODULE_PARM_DESC(modeset, "enable driver (default: auto, "
  79                           "0 = disabled, 1 = enabled, 2 = headless)");
  80 int nouveau_modeset = -1;
  81 module_param_named(modeset, nouveau_modeset, int, 0400);
  82
  83 MODULE_PARM_DESC(atomic, "Expose atomic ioctl (default: disabled)");
  84 static int nouveau_atomic = 0;
  85 module_param_named(atomic, nouveau_atomic, int, 0400);
  86
  87 MODULE_PARM_DESC(runpm, "disable (0), force enable (1), optimus only default (-1)");
  88 static int nouveau_runtime_pm = -1;
  89 module_param_named(runpm, nouveau_runtime_pm, int, 0400);
  90
  91 static struct drm_driver driver_stub;
  92 static struct drm_driver driver_pci;
  93 static struct drm_driver driver_platform;
  94
  95 static u64
  96 nouveau_pci_name(struct pci_dev *pdev)
  97 {
  98         u64 name = (u64)pci_domain_nr(pdev->bus) << 32;
  99         name |= pdev->bus->number << 16;
 100         name |= PCI_SLOT(pdev->devfn) << 8;
 101         return name | PCI_FUNC(pdev->devfn);
 102 }
 103
 104 static u64
 105 nouveau_platform_name(struct platform_device *platformdev)
 106 {
 107         return platformdev->id;
 108 }
 109
 110 static u64
 111 nouveau_name(struct drm_device *dev)
 112 {
 113         if (dev->pdev)
 114                 return nouveau_pci_name(dev->pdev);
 115         else
 116                 return nouveau_platform_name(to_platform_device(dev->dev));
 117 }
 118
 119 static inline bool
 120 nouveau_cli_work_ready(struct dma_fence *fence)
 121 {
 122         if (!dma_fence_is_signaled(fence))
 123                 return false;
 124         dma_fence_put(fence);
 125         return true;
 126 }
 127
 128 static void
 129 nouveau_cli_work(struct work_struct *w)
 130 {
 131         struct nouveau_cli *cli = container_of(w, typeof(*cli), work);
 132         struct nouveau_cli_work *work, *wtmp;
 133         mutex_lock(&cli->lock);
 134         list_for_each_entry_safe(work, wtmp, &cli->worker, head) {
 135                 if (!work->fence || nouveau_cli_work_ready(work->fence)) {
 136                         list_del(&work->head);
 137                         work->func(work);
 138                 }
 139         }
 140         mutex_unlock(&cli->lock);
 141 }
 142
 143 static void
 144 nouveau_cli_work_fence(struct dma_fence *fence, struct dma_fence_cb *cb)
 145 {
 146         struct nouveau_cli_work *work = container_of(cb, typeof(*work), cb);
 147         schedule_work(&work->cli->work);
 148 }
 149
 150 void
 151 nouveau_cli_work_queue(struct nouveau_cli *cli, struct dma_fence *fence,
 152                        struct nouveau_cli_work *work)
 153 {
 154         work->fence = dma_fence_get(fence);
 155         work->cli = cli;
 156         mutex_lock(&cli->lock);
 157         list_add_tail(&work->head, &cli->worker);
 158         if (dma_fence_add_callback(fence, &work->cb, nouveau_cli_work_fence))
 159                 nouveau_cli_work_fence(fence, &work->cb);
 160         mutex_unlock(&cli->lock);
 161 }
 162
 163 static void
 164 nouveau_cli_fini(struct nouveau_cli *cli)
 165 {
 166         /* All our channels are dead now, which means all the fences they
 167          * own are signalled, and all callback functions have been called.
 168          *
 169          * So, after flushing the workqueue, there should be nothing left.
 170          */
 171         flush_work(&cli->work);
 172         WARN_ON(!list_empty(&cli->worker));
 173
 174         usif_client_fini(cli);
 175         nouveau_vmm_fini(&cli->vmm);
 176         nvif_mmu_fini(&cli->mmu);
 177         nvif_device_fini(&cli->device);
 178         mutex_lock(&cli->drm->master.lock);
 179         nvif_client_fini(&cli->base);
 180         mutex_unlock(&cli->drm->master.lock);
 181 }
 182
 183 static int
 184 nouveau_cli_init(struct nouveau_drm *drm, const char *sname,
 185                  struct nouveau_cli *cli)
 186 {
 187         static const struct nvif_mclass
 188         mems[] = {
 189                 { NVIF_CLASS_MEM_GF100, -1 },
 190                 { NVIF_CLASS_MEM_NV50 , -1 },
 191                 { NVIF_CLASS_MEM_NV04 , -1 },
 192                 {}
 193         };
 194         static const struct nvif_mclass
 195         mmus[] = {
 196                 { NVIF_CLASS_MMU_GF100, -1 },
 197                 { NVIF_CLASS_MMU_NV50 , -1 },
 198                 { NVIF_CLASS_MMU_NV04 , -1 },
 199                 {}
 200         };
 201         static const struct nvif_mclass
 202         vmms[] = {
 203                 { NVIF_CLASS_VMM_GP100, -1 },
 204                 { NVIF_CLASS_VMM_GM200, -1 },
 205                 { NVIF_CLASS_VMM_GF100, -1 },
 206                 { NVIF_CLASS_VMM_NV50 , -1 },
 207                 { NVIF_CLASS_VMM_NV04 , -1 },
 208                 {}
 209         };
 210         u64 device = nouveau_name(drm->dev);
 211         int ret;
 212
 213         snprintf(cli->name, sizeof(cli->name), "%s", sname);
 214         cli->drm = drm;
 215         mutex_init(&cli->mutex);
 216         usif_client_init(cli);
 217
 218         INIT_WORK(&cli->work, nouveau_cli_work);
 219         INIT_LIST_HEAD(&cli->worker);
 220         mutex_init(&cli->lock);
 221
 222         if (cli == &drm->master) {
 223                 ret = nvif_driver_init(NULL, nouveau_config, nouveau_debug,
 224                                        cli->name, device, &cli->base);
 225         } else {
 226                 mutex_lock(&drm->master.lock);
 227                 ret = nvif_client_init(&drm->master.base, cli->name, device,
 228                                        &cli->base);
 229                 mutex_unlock(&drm->master.lock);
 230         }
 231         if (ret) {
 232                 NV_PRINTK(err, cli, "Client allocation failed: %d\n", ret);
 233                 goto done;
 234         }
 235
 236         ret = nvif_device_init(&cli->base.object, 0, NV_DEVICE,
 237                                &(struct nv_device_v0) {
 238                                         .device = ~0,
 239                                }, sizeof(struct nv_device_v0),
 240                                &cli->device);
 241         if (ret) {
 242                 NV_PRINTK(err, cli, "Device allocation failed: %d\n", ret);
 243                 goto done;
 244         }
 245
 246         ret = nvif_mclass(&cli->device.object, mmus);
 247         if (ret < 0) {
 248                 NV_PRINTK(err, cli, "No supported MMU class\n");
 249                 goto done;
 250         }
 251
 252         ret = nvif_mmu_init(&cli->device.object, mmus[ret].oclass, &cli->mmu);
 253         if (ret) {
 254                 NV_PRINTK(err, cli, "MMU allocation failed: %d\n", ret);
 255                 goto done;
 256         }
 257
 258         ret = nvif_mclass(&cli->mmu.object, vmms);
 259         if (ret < 0) {
 260                 NV_PRINTK(err, cli, "No supported VMM class\n");
 261                 goto done;
 262         }
 263
 264         ret = nouveau_vmm_init(cli, vmms[ret].oclass, &cli->vmm);
 265         if (ret) {
 266                 NV_PRINTK(err, cli, "VMM allocation failed: %d\n", ret);
 267                 goto done;
 268         }
 269
 270         ret = nvif_mclass(&cli->mmu.object, mems);
 271         if (ret < 0) {
 272                 NV_PRINTK(err, cli, "No supported MEM class\n");
 273                 goto done;
 274         }
 275
 276         cli->mem = &mems[ret];
 277         return 0;
 278 done:
 279         if (ret)
 280                 nouveau_cli_fini(cli);
 281         return ret;
 282 }
 283
 284 static void
 285 nouveau_accel_fini(struct nouveau_drm *drm)
 286 {
 287         nouveau_channel_idle(drm->channel);
 288         nvif_object_fini(&drm->ntfy);
 289         nvkm_gpuobj_del(&drm->notify);
 290         nvif_object_fini(&drm->nvsw);
 291         nouveau_channel_del(&drm->channel);
 292
 293         nouveau_channel_idle(drm->cechan);
 294         nvif_object_fini(&drm->ttm.copy);
 295         nouveau_channel_del(&drm->cechan);
 296
 297         if (drm->fence)
 298                 nouveau_fence(drm)->dtor(drm);
 299 }
 300
 301 static void
 302 nouveau_accel_init(struct nouveau_drm *drm)
 303 {
 304         struct nvif_device *device = &drm->client.device;
 305         struct nvif_sclass *sclass;
 306         u32 arg0, arg1;
 307         int ret, i, n;
 308
 309         if (nouveau_noaccel)
 310                 return;
 311
 312         ret = nouveau_channels_init(drm);
 313         if (ret)
 314                 return;
 315
 316         if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_VOLTA) {
 317                 ret = nvif_user_init(device);
 318                 if (ret)
 319                         return;
 320         }
 321
 322         /* initialise synchronisation routines */
 323         /*XXX: this is crap, but the fence/channel stuff is a little
 324          *     backwards in some places.  this will be fixed.
 325          */
 326         ret = n = nvif_object_sclass_get(&device->object, &sclass);
 327         if (ret < 0)
 328                 return;
 329
 330         for (ret = -ENOSYS, i = 0; i < n; i++) {
 331                 switch (sclass[i].oclass) {
 332                 case NV03_CHANNEL_DMA:
 333                         ret = nv04_fence_create(drm);
 334                         break;
 335                 case NV10_CHANNEL_DMA:
 336                         ret = nv10_fence_create(drm);
 337                         break;
 338                 case NV17_CHANNEL_DMA:
 339                 case NV40_CHANNEL_DMA:
 340                         ret = nv17_fence_create(drm);
 341                         break;
 342                 case NV50_CHANNEL_GPFIFO:
 343                         ret = nv50_fence_create(drm);
 344                         break;
 345                 case G82_CHANNEL_GPFIFO:
 346                         ret = nv84_fence_create(drm);
 347                         break;
 348                 case FERMI_CHANNEL_GPFIFO:
 349                 case KEPLER_CHANNEL_GPFIFO_A:
 350                 case KEPLER_CHANNEL_GPFIFO_B:
 351                 case MAXWELL_CHANNEL_GPFIFO_A:
 352                 case PASCAL_CHANNEL_GPFIFO_A:
 353                 case VOLTA_CHANNEL_GPFIFO_A:
 354                 case TURING_CHANNEL_GPFIFO_A:
 355                         ret = nvc0_fence_create(drm);
 356                         break;
 357                 default:
 358                         break;
 359                 }
 360         }
 361
 362         nvif_object_sclass_put(&sclass);
 363         if (ret) {
 364                 NV_ERROR(drm, "failed to initialise sync subsystem, %d\n", ret);
 365                 nouveau_accel_fini(drm);
 366                 return;
 367         }
 368
 369         if (device->info.family >= NV_DEVICE_INFO_V0_KEPLER) {
 370                 ret = nouveau_channel_new(drm, &drm->client.device,
 371                                           nvif_fifo_runlist_ce(device), 0,
 372                                           true, &drm->cechan);
 373                 if (ret)
 374                         NV_ERROR(drm, "failed to create ce channel, %d\n", ret);
 375
 376                 arg0 = nvif_fifo_runlist(device, NV_DEVICE_INFO_ENGINE_GR);
 377                 arg1 = 1;
 378         } else
 379         if (device->info.chipset >= 0xa3 &&
 380             device->info.chipset != 0xaa &&
 381             device->info.chipset != 0xac) {
 382                 ret = nouveau_channel_new(drm, &drm->client.device,
 383                                           NvDmaFB, NvDmaTT, false,
 384                                           &drm->cechan);
 385                 if (ret)
 386                         NV_ERROR(drm, "failed to create ce channel, %d\n", ret);
 387
 388                 arg0 = NvDmaFB;
 389                 arg1 = NvDmaTT;
 390         } else {
 391                 arg0 = NvDmaFB;
 392                 arg1 = NvDmaTT;
 393         }
 394
 395         ret = nouveau_channel_new(drm, &drm->client.device,
 396                                   arg0, arg1, false, &drm->channel);
 397         if (ret) {
 398                 NV_ERROR(drm, "failed to create kernel channel, %d\n", ret);
 399                 nouveau_accel_fini(drm);
 400                 return;
 401         }
 402
 403         if (device->info.family < NV_DEVICE_INFO_V0_TESLA) {
 404                 ret = nvif_object_init(&drm->channel->user, NVDRM_NVSW,
 405                                        nouveau_abi16_swclass(drm), NULL, 0,
 406                                        &drm->nvsw);
 407                 if (ret == 0) {
 408                         ret = RING_SPACE(drm->channel, 2);
 409                         if (ret == 0) {
 410                                 BEGIN_NV04(drm->channel, NvSubSw, 0, 1);
 411                                 OUT_RING  (drm->channel, drm->nvsw.handle);
 412                         }
 413                 }
 414
 415                 if (ret) {
 416                         NV_ERROR(drm, "failed to allocate sw class, %d\n", ret);
 417                         nouveau_accel_fini(drm);
 418                         return;
 419                 }
 420         }
 421
 422         if (device->info.family < NV_DEVICE_INFO_V0_FERMI) {
 423                 ret = nvkm_gpuobj_new(nvxx_device(&drm->client.device), 32, 0,
 424                                       false, NULL, &drm->notify);
 425                 if (ret) {
 426                         NV_ERROR(drm, "failed to allocate notifier, %d\n", ret);
 427                         nouveau_accel_fini(drm);
 428                         return;
 429                 }
 430
 431                 ret = nvif_object_init(&drm->channel->user, NvNotify0,
 432                                        NV_DMA_IN_MEMORY,
 433                                        &(struct nv_dma_v0) {
 434                                                 .target = NV_DMA_V0_TARGET_VRAM,
 435                                                 .access = NV_DMA_V0_ACCESS_RDWR,
 436                                                 .start = drm->notify->addr,
 437                                                 .limit = drm->notify->addr + 31
 438                                        }, sizeof(struct nv_dma_v0),
 439                                        &drm->ntfy);
 440                 if (ret) {
 441                         nouveau_accel_fini(drm);
 442                         return;
 443                 }
 444         }
 445
 446
 447         nouveau_bo_move_init(drm);
 448 }
 449
 450 static int
 451 nouveau_drm_device_init(struct drm_device *dev)
 452 {
 453         struct nouveau_drm *drm;
 454         int ret;
 455
 456         if (!(drm = kzalloc(sizeof(*drm), GFP_KERNEL)))
 457                 return -ENOMEM;
 458         dev->dev_private = drm;
 459         drm->dev = dev;
 460
 461         ret = nouveau_cli_init(drm, "DRM-master", &drm->master);
 462         if (ret)
 463                 goto fail_alloc;
 464
 465         ret = nouveau_cli_init(drm, "DRM", &drm->client);
 466         if (ret)
 467                 goto fail_master;
 468
 469         dev->irq_enabled = true;
 470
 471         nvxx_client(&drm->client.base)->debug =
 472                 nvkm_dbgopt(nouveau_debug, "DRM");
 473
 474         INIT_LIST_HEAD(&drm->clients);
 475         spin_lock_init(&drm->tile.lock);
 476
 477         /* workaround an odd issue on nvc1 by disabling the device's
 478          * nosnoop capability.  hopefully won't cause issues until a
 479          * better fix is found - assuming there is one...
 480          */
 481         if (drm->client.device.info.chipset == 0xc1)
 482                 nvif_mask(&drm->client.device.object, 0x00088080, 0x00000800, 0x00000000);
 483
 484         nouveau_vga_init(drm);
 485
 486         ret = nouveau_ttm_init(drm);
 487         if (ret)
 488                 goto fail_ttm;
 489
 490         ret = nouveau_bios_init(dev);
 491         if (ret)
 492                 goto fail_bios;
 493
 494         nouveau_accel_init(drm);
 495
 496         ret = nouveau_display_create(dev);
 497         if (ret)
 498                 goto fail_dispctor;
 499
 500         if (dev->mode_config.num_crtc) {
 501                 ret = nouveau_display_init(dev);
 502                 if (ret)
 503                         goto fail_dispinit;
 504         }
 505
 506         nouveau_debugfs_init(drm);
 507         nouveau_hwmon_init(dev);
 508         nouveau_fbcon_init(dev);
 509         nouveau_led_init(dev);
 510
 511         if (nouveau_pmops_runtime()) {
 512                 pm_runtime_use_autosuspend(dev->dev);
 513                 pm_runtime_set_autosuspend_delay(dev->dev, 5000);
 514                 pm_runtime_set_active(dev->dev);
 515                 pm_runtime_allow(dev->dev);
 516                 pm_runtime_mark_last_busy(dev->dev);
 517                 pm_runtime_put(dev->dev);
 518         }
 519
 520         return 0;
 521
 522 fail_dispinit:
 523         nouveau_display_destroy(dev);
 524 fail_dispctor:
 525         nouveau_accel_fini(drm);
 526         nouveau_bios_takedown(dev);
 527 fail_bios:
 528         nouveau_ttm_fini(drm);
 529 fail_ttm:
 530         nouveau_vga_fini(drm);
 531         nouveau_cli_fini(&drm->client);
 532 fail_master:
 533         nouveau_cli_fini(&drm->master);
 534 fail_alloc:
 535         kfree(drm);
 536         return ret;
 537 }
 538
 539 static void
 540 nouveau_drm_device_fini(struct drm_device *dev)
 541 {
 542         struct nouveau_drm *drm = nouveau_drm(dev);
 543
 544         if (nouveau_pmops_runtime()) {
 545                 pm_runtime_get_sync(dev->dev);
 546                 pm_runtime_forbid(dev->dev);
 547         }
 548
 549         nouveau_led_fini(dev);
 550         nouveau_fbcon_fini(dev);
 551         nouveau_hwmon_fini(dev);
 552         nouveau_debugfs_fini(drm);
 553
 554         if (dev->mode_config.num_crtc)
 555                 nouveau_display_fini(dev, false, false);
 556         nouveau_display_destroy(dev);
 557
 558         nouveau_accel_fini(drm);
 559         nouveau_bios_takedown(dev);
 560
 561         nouveau_ttm_fini(drm);
 562         nouveau_vga_fini(drm);
 563
 564         nouveau_cli_fini(&drm->client);
 565         nouveau_cli_fini(&drm->master);
 566         kfree(drm);
 567 }
 568
 569 static int nouveau_drm_probe(struct pci_dev *pdev,
 570                              const struct pci_device_id *pent)
 571 {
 572         struct nvkm_device *device;
 573         struct drm_device *drm_dev;
 574         struct apertures_struct *aper;
 575         bool boot = false;
 576         int ret;
 577
 578         if (vga_switcheroo_client_probe_defer(pdev))
 579                 return -EPROBE_DEFER;
 580
 581         /* We need to check that the chipset is supported before booting
 582          * fbdev off the hardware, as there's no way to put it back.
 583          */
 584         ret = nvkm_device_pci_new(pdev, NULL, "error", true, false, 0, &device);
 585         if (ret)
 586                 return ret;
 587
 588         nvkm_device_del(&device);
 589
 590         /* Remove conflicting drivers (vesafb, efifb etc). */
 591         aper = alloc_apertures(3);
 592         if (!aper)
 593                 return -ENOMEM;
 594
 595         aper->ranges[0].base = pci_resource_start(pdev, 1);
 596         aper->ranges[0].size = pci_resource_len(pdev, 1);
 597         aper->count = 1;
 598
 599         if (pci_resource_len(pdev, 2)) {
 600                 aper->ranges[aper->count].base = pci_resource_start(pdev, 2);
 601                 aper->ranges[aper->count].size = pci_resource_len(pdev, 2);
 602                 aper->count++;
 603         }
 604
 605         if (pci_resource_len(pdev, 3)) {
 606                 aper->ranges[aper->count].base = pci_resource_start(pdev, 3);
 607                 aper->ranges[aper->count].size = pci_resource_len(pdev, 3);
 608                 aper->count++;
 609         }
 610
 611 #ifdef CONFIG_X86
 612         boot = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
 613 #endif
 614         if (nouveau_modeset != 2)
 615                 drm_fb_helper_remove_conflicting_framebuffers(aper, "nouveaufb", boot);
 616         kfree(aper);
 617
 618         ret = nvkm_device_pci_new(pdev, nouveau_config, nouveau_debug,
 619                                   true, true, ~0ULL, &device);
 620         if (ret)
 621                 return ret;
 622
 623         pci_set_master(pdev);
 624
 625         if (nouveau_atomic)
 626                 driver_pci.driver_features |= DRIVER_ATOMIC;
 627
 628         drm_dev = drm_dev_alloc(&driver_pci, &pdev->dev);
 629         if (IS_ERR(drm_dev)) {
 630                 ret = PTR_ERR(drm_dev);
 631                 goto fail_nvkm;
 632         }
 633
 634         ret = pci_enable_device(pdev);
 635         if (ret)
 636                 goto fail_drm;
 637
 638         drm_dev->pdev = pdev;
 639         pci_set_drvdata(pdev, drm_dev);
 640
 641         ret = nouveau_drm_device_init(drm_dev);
 642         if (ret)
 643                 goto fail_pci;
 644
 645         ret = drm_dev_register(drm_dev, pent->driver_data);
 646         if (ret)
 647                 goto fail_drm_dev_init;
 648
 649         return 0;
 650
 651 fail_drm_dev_init:
 652         nouveau_drm_device_fini(drm_dev);
 653 fail_pci:
 654         pci_disable_device(pdev);
 655 fail_drm:
 656         drm_dev_put(drm_dev);
 657 fail_nvkm:
 658         nvkm_device_del(&device);
 659         return ret;
 660 }
 661
 662 void
 663 nouveau_drm_device_remove(struct drm_device *dev)
 664 {
 665         struct pci_dev *pdev = dev->pdev;
 666         struct nouveau_drm *drm = nouveau_drm(dev);
 667         struct nvkm_client *client;
 668         struct nvkm_device *device;
 669
 670         drm_dev_unregister(dev);
 671
 672         dev->irq_enabled = false;
 673         client = nvxx_client(&drm->client.base);
 674         device = nvkm_device_find(client->device);
 675
 676         nouveau_drm_device_fini(dev);
 677         pci_disable_device(pdev);
 678         drm_dev_put(dev);
 679         nvkm_device_del(&device);
 680 }
 681
 682 static void
 683 nouveau_drm_remove(struct pci_dev *pdev)
 684 {
 685         struct drm_device *dev = pci_get_drvdata(pdev);
 686
 687         nouveau_drm_device_remove(dev);
 688 }
 689
 690 static int
 691 nouveau_do_suspend(struct drm_device *dev, bool runtime)
 692 {
 693         struct nouveau_drm *drm = nouveau_drm(dev);
 694         int ret;
 695
 696         nouveau_led_suspend(dev);
 697
 698         if (dev->mode_config.num_crtc) {
 699                 NV_DEBUG(drm, "suspending console...\n");
 700                 nouveau_fbcon_set_suspend(dev, 1);
 701                 NV_DEBUG(drm, "suspending display...\n");
 702                 ret = nouveau_display_suspend(dev, runtime);
 703                 if (ret)
 704                         return ret;
 705         }
 706
 707         NV_DEBUG(drm, "evicting buffers...\n");
 708         ttm_bo_evict_mm(&drm->ttm.bdev, TTM_PL_VRAM);
 709
 710         NV_DEBUG(drm, "waiting for kernel channels to go idle...\n");
 711         if (drm->cechan) {
 712                 ret = nouveau_channel_idle(drm->cechan);
 713                 if (ret)
 714                         goto fail_display;
 715         }
 716
 717         if (drm->channel) {
 718                 ret = nouveau_channel_idle(drm->channel);
 719                 if (ret)
 720                         goto fail_display;
 721         }
 722
 723         NV_DEBUG(drm, "suspending fence...\n");
 724         if (drm->fence && nouveau_fence(drm)->suspend) {
 725                 if (!nouveau_fence(drm)->suspend(drm)) {
 726                         ret = -ENOMEM;
 727                         goto fail_display;
 728                 }
 729         }
 730
 731         NV_DEBUG(drm, "suspending object tree...\n");
 732         ret = nvif_client_suspend(&drm->master.base);
 733         if (ret)
 734                 goto fail_client;
 735
 736         return 0;
 737
 738 fail_client:
 739         if (drm->fence && nouveau_fence(drm)->resume)
 740                 nouveau_fence(drm)->resume(drm);
 741
 742 fail_display:
 743         if (dev->mode_config.num_crtc) {
 744                 NV_DEBUG(drm, "resuming display...\n");
 745                 nouveau_display_resume(dev, runtime);
 746         }
 747         return ret;
 748 }
 749
 750 static int
 751 nouveau_do_resume(struct drm_device *dev, bool runtime)
 752 {
 753         struct nouveau_drm *drm = nouveau_drm(dev);
 754
 755         NV_DEBUG(drm, "resuming object tree...\n");
 756         nvif_client_resume(&drm->master.base);
 757
 758         NV_DEBUG(drm, "resuming fence...\n");
 759         if (drm->fence && nouveau_fence(drm)->resume)
 760                 nouveau_fence(drm)->resume(drm);
 761
 762         nouveau_run_vbios_init(dev);
 763
 764         if (dev->mode_config.num_crtc) {
 765                 NV_DEBUG(drm, "resuming display...\n");
 766                 nouveau_display_resume(dev, runtime);
 767                 NV_DEBUG(drm, "resuming console...\n");
 768                 nouveau_fbcon_set_suspend(dev, 0);
 769         }
 770
 771         nouveau_led_resume(dev);
 772
 773         return 0;
 774 }
 775
 776 int
 777 nouveau_pmops_suspend(struct device *dev)
 778 {
 779         struct pci_dev *pdev = to_pci_dev(dev);
 780         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 781         int ret;
 782
 783         if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF ||
 784             drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF)
 785                 return 0;
 786
 787         ret = nouveau_do_suspend(drm_dev, false);
 788         if (ret)
 789                 return ret;
 790
 791         pci_save_state(pdev);
 792         pci_disable_device(pdev);
 793         pci_set_power_state(pdev, PCI_D3hot);
 794         udelay(200);
 795         return 0;
 796 }
 797
 798 int
 799 nouveau_pmops_resume(struct device *dev)
 800 {
 801         struct pci_dev *pdev = to_pci_dev(dev);
 802         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 803         int ret;
 804
 805         if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF ||
 806             drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF)
 807                 return 0;
 808
 809         pci_set_power_state(pdev, PCI_D0);
 810         pci_restore_state(pdev);
 811         ret = pci_enable_device(pdev);
 812         if (ret)
 813                 return ret;
 814         pci_set_master(pdev);
 815
 816         ret = nouveau_do_resume(drm_dev, false);
 817
 818         /* Monitors may have been connected / disconnected during suspend */
 819         schedule_work(&nouveau_drm(drm_dev)->hpd_work);
 820
 821         return ret;
 822 }
 823
 824 static int
 825 nouveau_pmops_freeze(struct device *dev)
 826 {
 827         struct pci_dev *pdev = to_pci_dev(dev);
 828         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 829         return nouveau_do_suspend(drm_dev, false);
 830 }
 831
 832 static int
 833 nouveau_pmops_thaw(struct device *dev)
 834 {
 835         struct pci_dev *pdev = to_pci_dev(dev);
 836         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 837         return nouveau_do_resume(drm_dev, false);
 838 }
 839
 840 bool
 841 nouveau_pmops_runtime(void)
 842 {
 843         if (nouveau_runtime_pm == -1)
 844                 return nouveau_is_optimus() || nouveau_is_v1_dsm();
 845         return nouveau_runtime_pm == 1;
 846 }
 847
 848 static int
 849 nouveau_pmops_runtime_suspend(struct device *dev)
 850 {
 851         struct pci_dev *pdev = to_pci_dev(dev);
 852         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 853         int ret;
 854
 855         if (!nouveau_pmops_runtime()) {
 856                 pm_runtime_forbid(dev);
 857                 return -EBUSY;
 858         }
 859
 860         nouveau_switcheroo_optimus_dsm();
 861         ret = nouveau_do_suspend(drm_dev, true);
 862         pci_save_state(pdev);
 863         pci_disable_device(pdev);
 864         pci_ignore_hotplug(pdev);
 865         pci_set_power_state(pdev, PCI_D3cold);
 866         drm_dev->switch_power_state = DRM_SWITCH_POWER_DYNAMIC_OFF;
 867         return ret;
 868 }
 869
 870 static int
 871 nouveau_pmops_runtime_resume(struct device *dev)
 872 {
 873         struct pci_dev *pdev = to_pci_dev(dev);
 874         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 875         struct nvif_device *device = &nouveau_drm(drm_dev)->client.device;
 876         int ret;
 877
 878         if (!nouveau_pmops_runtime()) {
 879                 pm_runtime_forbid(dev);
 880                 return -EBUSY;
 881         }
 882
 883         pci_set_power_state(pdev, PCI_D0);
 884         pci_restore_state(pdev);
 885         ret = pci_enable_device(pdev);
 886         if (ret)
 887                 return ret;
 888         pci_set_master(pdev);
 889
 890         ret = nouveau_do_resume(drm_dev, true);
 891
 892         /* do magic */
 893         nvif_mask(&device->object, 0x088488, (1 << 25), (1 << 25));
 894         drm_dev->switch_power_state = DRM_SWITCH_POWER_ON;
 895
 896         /* Monitors may have been connected / disconnected during suspend */
 897         schedule_work(&nouveau_drm(drm_dev)->hpd_work);
 898
 899         return ret;
 900 }
 901
 902 static int
 903 nouveau_pmops_runtime_idle(struct device *dev)
 904 {
 905         if (!nouveau_pmops_runtime()) {
 906                 pm_runtime_forbid(dev);
 907                 return -EBUSY;
 908         }
 909
 910         pm_runtime_mark_last_busy(dev);
 911         pm_runtime_autosuspend(dev);
 912         /* we don't want the main rpm_idle to call suspend - we want to autosuspend */
 913         return 1;
 914 }
 915
 916 static int
 917 nouveau_drm_open(struct drm_device *dev, struct drm_file *fpriv)
 918 {
 919         struct nouveau_drm *drm = nouveau_drm(dev);
 920         struct nouveau_cli *cli;
 921         char name[32], tmpname[TASK_COMM_LEN];
 922         int ret;
 923
 924         /* need to bring up power immediately if opening device */
 925         ret = pm_runtime_get_sync(dev->dev);
 926         if (ret < 0 && ret != -EACCES)
 927                 return ret;
 928
 929         get_task_comm(tmpname, current);
 930         snprintf(name, sizeof(name), "%s[%d]", tmpname, pid_nr(fpriv->pid));
 931
 932         if (!(cli = kzalloc(sizeof(*cli), GFP_KERNEL))) {
 933                 ret = -ENOMEM;
 934                 goto done;
 935         }
 936
 937         ret = nouveau_cli_init(drm, name, cli);
 938         if (ret)
 939                 goto done;
 940
 941         cli->base.super = false;
 942
 943         fpriv->driver_priv = cli;
 944
 945         mutex_lock(&drm->client.mutex);
 946         list_add(&cli->head, &drm->clients);
 947         mutex_unlock(&drm->client.mutex);
 948
 949 done:
 950         if (ret && cli) {
 951                 nouveau_cli_fini(cli);
 952                 kfree(cli);
 953         }
 954
 955         pm_runtime_mark_last_busy(dev->dev);
 956         pm_runtime_put_autosuspend(dev->dev);
 957         return ret;
 958 }
 959
 960 static void
 961 nouveau_drm_postclose(struct drm_device *dev, struct drm_file *fpriv)
 962 {
 963         struct nouveau_cli *cli = nouveau_cli(fpriv);
 964         struct nouveau_drm *drm = nouveau_drm(dev);
 965
 966         pm_runtime_get_sync(dev->dev);
 967
 968         mutex_lock(&cli->mutex);
 969         if (cli->abi16)
 970                 nouveau_abi16_fini(cli->abi16);
 971         mutex_unlock(&cli->mutex);
 972
 973         mutex_lock(&drm->client.mutex);
 974         list_del(&cli->head);
 975         mutex_unlock(&drm->client.mutex);
 976
 977         nouveau_cli_fini(cli);
 978         kfree(cli);
 979         pm_runtime_mark_last_busy(dev->dev);
 980         pm_runtime_put_autosuspend(dev->dev);
 981 }
 982
 983 static const struct drm_ioctl_desc
 984 nouveau_ioctls[] = {
 985         DRM_IOCTL_DEF_DRV(NOUVEAU_GETPARAM, nouveau_abi16_ioctl_getparam, DRM_AUTH|DRM_RENDER_ALLOW),
 986         DRM_IOCTL_DEF_DRV(NOUVEAU_SETPARAM, nouveau_abi16_ioctl_setparam, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
 987         DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_ALLOC, nouveau_abi16_ioctl_channel_alloc, DRM_AUTH|DRM_RENDER_ALLOW),
 988         DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_FREE, nouveau_abi16_ioctl_channel_free, DRM_AUTH|DRM_RENDER_ALLOW),
 989         DRM_IOCTL_DEF_DRV(NOUVEAU_GROBJ_ALLOC, nouveau_abi16_ioctl_grobj_alloc, DRM_AUTH|DRM_RENDER_ALLOW),
 990         DRM_IOCTL_DEF_DRV(NOUVEAU_NOTIFIEROBJ_ALLOC, nouveau_abi16_ioctl_notifierobj_alloc, DRM_AUTH|DRM_RENDER_ALLOW),
 991         DRM_IOCTL_DEF_DRV(NOUVEAU_GPUOBJ_FREE, nouveau_abi16_ioctl_gpuobj_free, DRM_AUTH|DRM_RENDER_ALLOW),
 992         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_NEW, nouveau_gem_ioctl_new, DRM_AUTH|DRM_RENDER_ALLOW),
 993         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_PUSHBUF, nouveau_gem_ioctl_pushbuf, DRM_AUTH|DRM_RENDER_ALLOW),
 994         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_PREP, nouveau_gem_ioctl_cpu_prep, DRM_AUTH|DRM_RENDER_ALLOW),
 995         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_FINI, nouveau_gem_ioctl_cpu_fini, DRM_AUTH|DRM_RENDER_ALLOW),
 996         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_INFO, nouveau_gem_ioctl_info, DRM_AUTH|DRM_RENDER_ALLOW),
 997 };
 998
 999 long
1000 nouveau_drm_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
1001 {
1002         struct drm_file *filp = file->private_data;
1003         struct drm_device *dev = filp->minor->dev;
1004         long ret;
1005
1006         ret = pm_runtime_get_sync(dev->dev);
1007         if (ret < 0 && ret != -EACCES)
1008                 return ret;
1009
1010         switch (_IOC_NR(cmd) - DRM_COMMAND_BASE) {
1011         case DRM_NOUVEAU_NVIF:
1012                 ret = usif_ioctl(filp, (void __user *)arg, _IOC_SIZE(cmd));
1013                 break;
1014         default:
1015                 ret = drm_ioctl(file, cmd, arg);
1016                 break;
1017         }
1018
1019         pm_runtime_mark_last_busy(dev->dev);
1020         pm_runtime_put_autosuspend(dev->dev);
1021         return ret;
1022 }
1023
1024 static const struct file_operations
1025 nouveau_driver_fops = {
1026         .owner = THIS_MODULE,
1027         .open = drm_open,
1028         .release = drm_release,
1029         .unlocked_ioctl = nouveau_drm_ioctl,
1030         .mmap = nouveau_ttm_mmap,
1031         .poll = drm_poll,
1032         .read = drm_read,
1033 #if defined(CONFIG_COMPAT)
1034         .compat_ioctl = nouveau_compat_ioctl,
1035 #endif
1036         .llseek = noop_llseek,
1037 };
1038
1039 static struct drm_driver
1040 driver_stub = {
1041         .driver_features =
1042                 DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME | DRIVER_RENDER |
1043                 DRIVER_KMS_LEGACY_CONTEXT,
1044
1045         .open = nouveau_drm_open,
1046         .postclose = nouveau_drm_postclose,
1047         .lastclose = nouveau_vga_lastclose,
1048
1049 #if defined(CONFIG_DEBUG_FS)
1050         .debugfs_init = nouveau_drm_debugfs_init,
1051 #endif
1052
1053         .enable_vblank = nouveau_display_vblank_enable,
1054         .disable_vblank = nouveau_display_vblank_disable,
1055         .get_scanout_position = nouveau_display_scanoutpos,
1056         .get_vblank_timestamp = drm_calc_vbltimestamp_from_scanoutpos,
1057
1058         .ioctls = nouveau_ioctls,
1059         .num_ioctls = ARRAY_SIZE(nouveau_ioctls),
1060         .fops = &nouveau_driver_fops,
1061
1062         .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
1063         .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
1064         .gem_prime_export = drm_gem_prime_export,
1065         .gem_prime_import = drm_gem_prime_import,
1066         .gem_prime_pin = nouveau_gem_prime_pin,
1067         .gem_prime_res_obj = nouveau_gem_prime_res_obj,
1068         .gem_prime_unpin = nouveau_gem_prime_unpin,
1069         .gem_prime_get_sg_table = nouveau_gem_prime_get_sg_table,
1070         .gem_prime_import_sg_table = nouveau_gem_prime_import_sg_table,
1071         .gem_prime_vmap = nouveau_gem_prime_vmap,
1072         .gem_prime_vunmap = nouveau_gem_prime_vunmap,
1073
1074         .gem_free_object_unlocked = nouveau_gem_object_del,
1075         .gem_open_object = nouveau_gem_object_open,
1076         .gem_close_object = nouveau_gem_object_close,
1077
1078         .dumb_create = nouveau_display_dumb_create,
1079         .dumb_map_offset = nouveau_display_dumb_map_offset,
1080
1081         .name = DRIVER_NAME,
1082         .desc = DRIVER_DESC,
1083 #ifdef GIT_REVISION
1084         .date = GIT_REVISION,
1085 #else
1086         .date = DRIVER_DATE,
1087 #endif
1088         .major = DRIVER_MAJOR,
1089         .minor = DRIVER_MINOR,
1090         .patchlevel = DRIVER_PATCHLEVEL,
1091 };
1092
1093 static struct pci_device_id
1094 nouveau_drm_pci_table[] = {
1095         {
1096                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID),
1097                 .class = PCI_BASE_CLASS_DISPLAY << 16,
1098                 .class_mask  = 0xff << 16,
1099         },
1100         {
1101                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA_SGS, PCI_ANY_ID),
1102                 .class = PCI_BASE_CLASS_DISPLAY << 16,
1103                 .class_mask  = 0xff << 16,
1104         },
1105         {}
1106 };
1107
1108 static void nouveau_display_options(void)
1109 {
1110         DRM_DEBUG_DRIVER("Loading Nouveau with parameters:\n");
1111
1112         DRM_DEBUG_DRIVER("... tv_disable   : %d\n", nouveau_tv_disable);
1113         DRM_DEBUG_DRIVER("... ignorelid    : %d\n", nouveau_ignorelid);
1114         DRM_DEBUG_DRIVER("... duallink     : %d\n", nouveau_duallink);
1115         DRM_DEBUG_DRIVER("... nofbaccel    : %d\n", nouveau_nofbaccel);
1116         DRM_DEBUG_DRIVER("... config       : %s\n", nouveau_config);
1117         DRM_DEBUG_DRIVER("... debug        : %s\n", nouveau_debug);
1118         DRM_DEBUG_DRIVER("... noaccel      : %d\n", nouveau_noaccel);
1119         DRM_DEBUG_DRIVER("... modeset      : %d\n", nouveau_modeset);
1120         DRM_DEBUG_DRIVER("... runpm        : %d\n", nouveau_runtime_pm);
1121         DRM_DEBUG_DRIVER("... vram_pushbuf : %d\n", nouveau_vram_pushbuf);
1122         DRM_DEBUG_DRIVER("... hdmimhz      : %d\n", nouveau_hdmimhz);
1123 }
1124
1125 static const struct dev_pm_ops nouveau_pm_ops = {
1126         .suspend = nouveau_pmops_suspend,
1127         .resume = nouveau_pmops_resume,
1128         .freeze = nouveau_pmops_freeze,
1129         .thaw = nouveau_pmops_thaw,
1130         .poweroff = nouveau_pmops_freeze,
1131         .restore = nouveau_pmops_resume,
1132         .runtime_suspend = nouveau_pmops_runtime_suspend,
1133         .runtime_resume = nouveau_pmops_runtime_resume,
1134         .runtime_idle = nouveau_pmops_runtime_idle,
1135 };
1136
1137 static struct pci_driver
1138 nouveau_drm_pci_driver = {
1139         .name = "nouveau",
1140         .id_table = nouveau_drm_pci_table,
1141         .probe = nouveau_drm_probe,
1142         .remove = nouveau_drm_remove,
1143         .driver.pm = &nouveau_pm_ops,
1144 };
1145
1146 struct drm_device *
1147 nouveau_platform_device_create(const struct nvkm_device_tegra_func *func,
1148                                struct platform_device *pdev,
1149                                struct nvkm_device **pdevice)
1150 {
1151         struct drm_device *drm;
1152         int err;
1153
1154         err = nvkm_device_tegra_new(func, pdev, nouveau_config, nouveau_debug,
1155                                     true, true, ~0ULL, pdevice);
1156         if (err)
1157                 goto err_free;
1158
1159         drm = drm_dev_alloc(&driver_platform, &pdev->dev);
1160         if (IS_ERR(drm)) {
1161                 err = PTR_ERR(drm);
1162                 goto err_free;
1163         }
1164
1165         err = nouveau_drm_device_init(drm);
1166         if (err)
1167                 goto err_put;
1168
1169         platform_set_drvdata(pdev, drm);
1170
1171         return drm;
1172
1173 err_put:
1174         drm_dev_put(drm);
1175 err_free:
1176         nvkm_device_del(pdevice);
1177
1178         return ERR_PTR(err);
1179 }
1180
1181 static int __init
1182 nouveau_drm_init(void)
1183 {
1184         driver_pci = driver_stub;
1185         driver_platform = driver_stub;
1186
1187         nouveau_display_options();
1188
1189         if (nouveau_modeset == -1) {
1190                 if (vgacon_text_force())
1191                         nouveau_modeset = 0;
1192         }
1193
1194         if (!nouveau_modeset)
1195                 return 0;
1196
1197 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER
1198         platform_driver_register(&nouveau_platform_driver);
1199 #endif
1200
1201         nouveau_register_dsm_handler();
1202         nouveau_backlight_ctor();
1203
1204 #ifdef CONFIG_PCI
1205         return pci_register_driver(&nouveau_drm_pci_driver);
1206 #else
1207         return 0;
1208 #endif
1209 }
1210
1211 static void __exit
1212 nouveau_drm_exit(void)
1213 {
1214         if (!nouveau_modeset)
1215                 return;
1216
1217 #ifdef CONFIG_PCI
1218         pci_unregister_driver(&nouveau_drm_pci_driver);
1219 #endif
1220         nouveau_backlight_dtor();
1221         nouveau_unregister_dsm_handler();
1222
1223 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER
1224         platform_driver_unregister(&nouveau_platform_driver);
1225 #endif
1226 }
1227
1228 module_init(nouveau_drm_init);
1229 module_exit(nouveau_drm_exit);
1230
1231 MODULE_DEVICE_TABLE(pci, nouveau_drm_pci_table);
1232 MODULE_AUTHOR(DRIVER_AUTHOR);
1233 MODULE_DESCRIPTION(DRIVER_DESC);
1234 MODULE_LICENSE("GPL and additional rights");