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 #include <nvif/if0004.h>
  48
  49 #include "nouveau_drv.h"
  50 #include "nouveau_dma.h"
  51 #include "nouveau_ttm.h"
  52 #include "nouveau_gem.h"
  53 #include "nouveau_vga.h"
  54 #include "nouveau_led.h"
  55 #include "nouveau_hwmon.h"
  56 #include "nouveau_acpi.h"
  57 #include "nouveau_bios.h"
  58 #include "nouveau_ioctl.h"
  59 #include "nouveau_abi16.h"
  60 #include "nouveau_fbcon.h"
  61 #include "nouveau_fence.h"
  62 #include "nouveau_debugfs.h"
  63 #include "nouveau_usif.h"
  64 #include "nouveau_connector.h"
  65 #include "nouveau_platform.h"
  66
  67 MODULE_PARM_DESC(config, "option string to pass to driver core");
  68 static char *nouveau_config;
  69 module_param_named(config, nouveau_config, charp, 0400);
  70
  71 MODULE_PARM_DESC(debug, "debug string to pass to driver core");
  72 static char *nouveau_debug;
  73 module_param_named(debug, nouveau_debug, charp, 0400);
  74
  75 MODULE_PARM_DESC(noaccel, "disable kernel/abi16 acceleration");
  76 static int nouveau_noaccel = 0;
  77 module_param_named(noaccel, nouveau_noaccel, int, 0400);
  78
  79 MODULE_PARM_DESC(modeset, "enable driver (default: auto, "
  80                           "0 = disabled, 1 = enabled, 2 = headless)");
  81 int nouveau_modeset = -1;
  82 module_param_named(modeset, nouveau_modeset, int, 0400);
  83
  84 MODULE_PARM_DESC(runpm, "disable (0), force enable (1), optimus only default (-1)");
  85 static int nouveau_runtime_pm = -1;
  86 module_param_named(runpm, nouveau_runtime_pm, int, 0400);
  87
  88 static struct drm_driver driver_stub;
  89 static struct drm_driver driver_pci;
  90 static struct drm_driver driver_platform;
  91
  92 static u64
  93 nouveau_pci_name(struct pci_dev *pdev)
  94 {
  95         u64 name = (u64)pci_domain_nr(pdev->bus) << 32;
  96         name |= pdev->bus->number << 16;
  97         name |= PCI_SLOT(pdev->devfn) << 8;
  98         return name | PCI_FUNC(pdev->devfn);
  99 }
 100
 101 static u64
 102 nouveau_platform_name(struct platform_device *platformdev)
 103 {
 104         return platformdev->id;
 105 }
 106
 107 static u64
 108 nouveau_name(struct drm_device *dev)
 109 {
 110         if (dev->pdev)
 111                 return nouveau_pci_name(dev->pdev);
 112         else
 113                 return nouveau_platform_name(to_platform_device(dev->dev));
 114 }
 115
 116 static inline bool
 117 nouveau_cli_work_ready(struct dma_fence *fence)
 118 {
 119         if (!dma_fence_is_signaled(fence))
 120                 return false;
 121         dma_fence_put(fence);
 122         return true;
 123 }
 124
 125 static void
 126 nouveau_cli_work(struct work_struct *w)
 127 {
 128         struct nouveau_cli *cli = container_of(w, typeof(*cli), work);
 129         struct nouveau_cli_work *work, *wtmp;
 130         mutex_lock(&cli->lock);
 131         list_for_each_entry_safe(work, wtmp, &cli->worker, head) {
 132                 if (!work->fence || nouveau_cli_work_ready(work->fence)) {
 133                         list_del(&work->head);
 134                         work->func(work);
 135                 }
 136         }
 137         mutex_unlock(&cli->lock);
 138 }
 139
 140 static void
 141 nouveau_cli_work_fence(struct dma_fence *fence, struct dma_fence_cb *cb)
 142 {
 143         struct nouveau_cli_work *work = container_of(cb, typeof(*work), cb);
 144         schedule_work(&work->cli->work);
 145 }
 146
 147 void
 148 nouveau_cli_work_queue(struct nouveau_cli *cli, struct dma_fence *fence,
 149                        struct nouveau_cli_work *work)
 150 {
 151         work->fence = dma_fence_get(fence);
 152         work->cli = cli;
 153         mutex_lock(&cli->lock);
 154         list_add_tail(&work->head, &cli->worker);
 155         if (dma_fence_add_callback(fence, &work->cb, nouveau_cli_work_fence))
 156                 nouveau_cli_work_fence(fence, &work->cb);
 157         mutex_unlock(&cli->lock);
 158 }
 159
 160 static void
 161 nouveau_cli_fini(struct nouveau_cli *cli)
 162 {
 163         /* All our channels are dead now, which means all the fences they
 164          * own are signalled, and all callback functions have been called.
 165          *
 166          * So, after flushing the workqueue, there should be nothing left.
 167          */
 168         flush_work(&cli->work);
 169         WARN_ON(!list_empty(&cli->worker));
 170
 171         usif_client_fini(cli);
 172         nouveau_vmm_fini(&cli->vmm);
 173         nvif_mmu_fini(&cli->mmu);
 174         nvif_device_fini(&cli->device);
 175         mutex_lock(&cli->drm->master.lock);
 176         nvif_client_fini(&cli->base);
 177         mutex_unlock(&cli->drm->master.lock);
 178 }
 179
 180 static int
 181 nouveau_cli_init(struct nouveau_drm *drm, const char *sname,
 182                  struct nouveau_cli *cli)
 183 {
 184         static const struct nvif_mclass
 185         mems[] = {
 186                 { NVIF_CLASS_MEM_GF100, -1 },
 187                 { NVIF_CLASS_MEM_NV50 , -1 },
 188                 { NVIF_CLASS_MEM_NV04 , -1 },
 189                 {}
 190         };
 191         static const struct nvif_mclass
 192         mmus[] = {
 193                 { NVIF_CLASS_MMU_GF100, -1 },
 194                 { NVIF_CLASS_MMU_NV50 , -1 },
 195                 { NVIF_CLASS_MMU_NV04 , -1 },
 196                 {}
 197         };
 198         static const struct nvif_mclass
 199         vmms[] = {
 200                 { NVIF_CLASS_VMM_GP100, -1 },
 201                 { NVIF_CLASS_VMM_GM200, -1 },
 202                 { NVIF_CLASS_VMM_GF100, -1 },
 203                 { NVIF_CLASS_VMM_NV50 , -1 },
 204                 { NVIF_CLASS_VMM_NV04 , -1 },
 205                 {}
 206         };
 207         u64 device = nouveau_name(drm->dev);
 208         int ret;
 209
 210         snprintf(cli->name, sizeof(cli->name), "%s", sname);
 211         cli->drm = drm;
 212         mutex_init(&cli->mutex);
 213         usif_client_init(cli);
 214
 215         INIT_WORK(&cli->work, nouveau_cli_work);
 216         INIT_LIST_HEAD(&cli->worker);
 217         mutex_init(&cli->lock);
 218
 219         if (cli == &drm->master) {
 220                 ret = nvif_driver_init(NULL, nouveau_config, nouveau_debug,
 221                                        cli->name, device, &cli->base);
 222         } else {
 223                 mutex_lock(&drm->master.lock);
 224                 ret = nvif_client_init(&drm->master.base, cli->name, device,
 225                                        &cli->base);
 226                 mutex_unlock(&drm->master.lock);
 227         }
 228         if (ret) {
 229                 NV_ERROR(drm, "Client allocation failed: %d\n", ret);
 230                 goto done;
 231         }
 232
 233         ret = nvif_device_init(&cli->base.object, 0, NV_DEVICE,
 234                                &(struct nv_device_v0) {
 235                                         .device = ~0,
 236                                }, sizeof(struct nv_device_v0),
 237                                &cli->device);
 238         if (ret) {
 239                 NV_ERROR(drm, "Device allocation failed: %d\n", ret);
 240                 goto done;
 241         }
 242
 243         ret = nvif_mclass(&cli->device.object, mmus);
 244         if (ret < 0) {
 245                 NV_ERROR(drm, "No supported MMU class\n");
 246                 goto done;
 247         }
 248
 249         ret = nvif_mmu_init(&cli->device.object, mmus[ret].oclass, &cli->mmu);
 250         if (ret) {
 251                 NV_ERROR(drm, "MMU allocation failed: %d\n", ret);
 252                 goto done;
 253         }
 254
 255         ret = nvif_mclass(&cli->mmu.object, vmms);
 256         if (ret < 0) {
 257                 NV_ERROR(drm, "No supported VMM class\n");
 258                 goto done;
 259         }
 260
 261         ret = nouveau_vmm_init(cli, vmms[ret].oclass, &cli->vmm);
 262         if (ret) {
 263                 NV_ERROR(drm, "VMM allocation failed: %d\n", ret);
 264                 goto done;
 265         }
 266
 267         ret = nvif_mclass(&cli->mmu.object, mems);
 268         if (ret < 0) {
 269                 NV_ERROR(drm, "No supported MEM class\n");
 270                 goto done;
 271         }
 272
 273         cli->mem = &mems[ret];
 274         return 0;
 275 done:
 276         if (ret)
 277                 nouveau_cli_fini(cli);
 278         return ret;
 279 }
 280
 281 static void
 282 nouveau_accel_fini(struct nouveau_drm *drm)
 283 {
 284         nouveau_channel_idle(drm->channel);
 285         nvif_object_fini(&drm->ntfy);
 286         nvkm_gpuobj_del(&drm->notify);
 287         nvif_notify_fini(&drm->flip);
 288         nvif_object_fini(&drm->nvsw);
 289         nouveau_channel_del(&drm->channel);
 290
 291         nouveau_channel_idle(drm->cechan);
 292         nvif_object_fini(&drm->ttm.copy);
 293         nouveau_channel_del(&drm->cechan);
 294
 295         if (drm->fence)
 296                 nouveau_fence(drm)->dtor(drm);
 297 }
 298
 299 static void
 300 nouveau_accel_init(struct nouveau_drm *drm)
 301 {
 302         struct nvif_device *device = &drm->client.device;
 303         struct nvif_sclass *sclass;
 304         u32 arg0, arg1;
 305         int ret, i, n;
 306
 307         if (nouveau_noaccel)
 308                 return;
 309
 310         ret = nouveau_channels_init(drm);
 311         if (ret)
 312                 return;
 313
 314         if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_VOLTA) {
 315                 ret = nvif_user_init(device);
 316                 if (ret)
 317                         return;
 318         }
 319
 320         /* initialise synchronisation routines */
 321         /*XXX: this is crap, but the fence/channel stuff is a little
 322          *     backwards in some places.  this will be fixed.
 323          */
 324         ret = n = nvif_object_sclass_get(&device->object, &sclass);
 325         if (ret < 0)
 326                 return;
 327
 328         for (ret = -ENOSYS, i = 0; i < n; i++) {
 329                 switch (sclass[i].oclass) {
 330                 case NV03_CHANNEL_DMA:
 331                         ret = nv04_fence_create(drm);
 332                         break;
 333                 case NV10_CHANNEL_DMA:
 334                         ret = nv10_fence_create(drm);
 335                         break;
 336                 case NV17_CHANNEL_DMA:
 337                 case NV40_CHANNEL_DMA:
 338                         ret = nv17_fence_create(drm);
 339                         break;
 340                 case NV50_CHANNEL_GPFIFO:
 341                         ret = nv50_fence_create(drm);
 342                         break;
 343                 case G82_CHANNEL_GPFIFO:
 344                         ret = nv84_fence_create(drm);
 345                         break;
 346                 case FERMI_CHANNEL_GPFIFO:
 347                 case KEPLER_CHANNEL_GPFIFO_A:
 348                 case KEPLER_CHANNEL_GPFIFO_B:
 349                 case MAXWELL_CHANNEL_GPFIFO_A:
 350                 case PASCAL_CHANNEL_GPFIFO_A:
 351                 case VOLTA_CHANNEL_GPFIFO_A:
 352                         ret = nvc0_fence_create(drm);
 353                         break;
 354                 default:
 355                         break;
 356                 }
 357         }
 358
 359         nvif_object_sclass_put(&sclass);
 360         if (ret) {
 361                 NV_ERROR(drm, "failed to initialise sync subsystem, %d\n", ret);
 362                 nouveau_accel_fini(drm);
 363                 return;
 364         }
 365
 366         if (device->info.family >= NV_DEVICE_INFO_V0_KEPLER) {
 367                 ret = nouveau_channel_new(drm, &drm->client.device,
 368                                           nvif_fifo_runlist_ce(device), 0,
 369                                           &drm->cechan);
 370                 if (ret)
 371                         NV_ERROR(drm, "failed to create ce channel, %d\n", ret);
 372
 373                 arg0 = nvif_fifo_runlist(device, NV_DEVICE_INFO_ENGINE_GR);
 374                 arg1 = 1;
 375         } else
 376         if (device->info.chipset >= 0xa3 &&
 377             device->info.chipset != 0xaa &&
 378             device->info.chipset != 0xac) {
 379                 ret = nouveau_channel_new(drm, &drm->client.device,
 380                                           NvDmaFB, NvDmaTT, &drm->cechan);
 381                 if (ret)
 382                         NV_ERROR(drm, "failed to create ce channel, %d\n", ret);
 383
 384                 arg0 = NvDmaFB;
 385                 arg1 = NvDmaTT;
 386         } else {
 387                 arg0 = NvDmaFB;
 388                 arg1 = NvDmaTT;
 389         }
 390
 391         ret = nouveau_channel_new(drm, &drm->client.device,
 392                                   arg0, arg1, &drm->channel);
 393         if (ret) {
 394                 NV_ERROR(drm, "failed to create kernel channel, %d\n", ret);
 395                 nouveau_accel_fini(drm);
 396                 return;
 397         }
 398
 399         if (device->info.family < NV_DEVICE_INFO_V0_TESLA) {
 400                 ret = nvif_object_init(&drm->channel->user, NVDRM_NVSW,
 401                                        nouveau_abi16_swclass(drm), NULL, 0,
 402                                        &drm->nvsw);
 403                 if (ret == 0) {
 404                         ret = RING_SPACE(drm->channel, 2);
 405                         if (ret == 0) {
 406                                 BEGIN_NV04(drm->channel, NvSubSw, 0, 1);
 407                                 OUT_RING  (drm->channel, drm->nvsw.handle);
 408                         }
 409
 410                         ret = nvif_notify_init(&drm->nvsw,
 411                                                nouveau_flip_complete,
 412                                                false, NV04_NVSW_NTFY_UEVENT,
 413                                                NULL, 0, 0, &drm->flip);
 414                         if (ret == 0)
 415                                 ret = nvif_notify_get(&drm->flip);
 416                         if (ret) {
 417                                 nouveau_accel_fini(drm);
 418                                 return;
 419                         }
 420                 }
 421
 422                 if (ret) {
 423                         NV_ERROR(drm, "failed to allocate sw class, %d\n", ret);
 424                         nouveau_accel_fini(drm);
 425                         return;
 426                 }
 427         }
 428
 429         if (device->info.family < NV_DEVICE_INFO_V0_FERMI) {
 430                 ret = nvkm_gpuobj_new(nvxx_device(&drm->client.device), 32, 0,
 431                                       false, NULL, &drm->notify);
 432                 if (ret) {
 433                         NV_ERROR(drm, "failed to allocate notifier, %d\n", ret);
 434                         nouveau_accel_fini(drm);
 435                         return;
 436                 }
 437
 438                 ret = nvif_object_init(&drm->channel->user, NvNotify0,
 439                                        NV_DMA_IN_MEMORY,
 440                                        &(struct nv_dma_v0) {
 441                                                 .target = NV_DMA_V0_TARGET_VRAM,
 442                                                 .access = NV_DMA_V0_ACCESS_RDWR,
 443                                                 .start = drm->notify->addr,
 444                                                 .limit = drm->notify->addr + 31
 445                                        }, sizeof(struct nv_dma_v0),
 446                                        &drm->ntfy);
 447                 if (ret) {
 448                         nouveau_accel_fini(drm);
 449                         return;
 450                 }
 451         }
 452
 453
 454         nouveau_bo_move_init(drm);
 455 }
 456
 457 static int nouveau_drm_probe(struct pci_dev *pdev,
 458                              const struct pci_device_id *pent)
 459 {
 460         struct nvkm_device *device;
 461         struct apertures_struct *aper;
 462         bool boot = false;
 463         int ret;
 464
 465         if (vga_switcheroo_client_probe_defer(pdev))
 466                 return -EPROBE_DEFER;
 467
 468         /* We need to check that the chipset is supported before booting
 469          * fbdev off the hardware, as there's no way to put it back.
 470          */
 471         ret = nvkm_device_pci_new(pdev, NULL, "error", true, false, 0, &device);
 472         if (ret)
 473                 return ret;
 474
 475         nvkm_device_del(&device);
 476
 477         /* Remove conflicting drivers (vesafb, efifb etc). */
 478         aper = alloc_apertures(3);
 479         if (!aper)
 480                 return -ENOMEM;
 481
 482         aper->ranges[0].base = pci_resource_start(pdev, 1);
 483         aper->ranges[0].size = pci_resource_len(pdev, 1);
 484         aper->count = 1;
 485
 486         if (pci_resource_len(pdev, 2)) {
 487                 aper->ranges[aper->count].base = pci_resource_start(pdev, 2);
 488                 aper->ranges[aper->count].size = pci_resource_len(pdev, 2);
 489                 aper->count++;
 490         }
 491
 492         if (pci_resource_len(pdev, 3)) {
 493                 aper->ranges[aper->count].base = pci_resource_start(pdev, 3);
 494                 aper->ranges[aper->count].size = pci_resource_len(pdev, 3);
 495                 aper->count++;
 496         }
 497
 498 #ifdef CONFIG_X86
 499         boot = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
 500 #endif
 501         if (nouveau_modeset != 2)
 502                 drm_fb_helper_remove_conflicting_framebuffers(aper, "nouveaufb", boot);
 503         kfree(aper);
 504
 505         ret = nvkm_device_pci_new(pdev, nouveau_config, nouveau_debug,
 506                                   true, true, ~0ULL, &device);
 507         if (ret)
 508                 return ret;
 509
 510         pci_set_master(pdev);
 511
 512         ret = drm_get_pci_dev(pdev, pent, &driver_pci);
 513         if (ret) {
 514                 nvkm_device_del(&device);
 515                 return ret;
 516         }
 517
 518         return 0;
 519 }
 520
 521 static int
 522 nouveau_drm_load(struct drm_device *dev, unsigned long flags)
 523 {
 524         struct nouveau_drm *drm;
 525         int ret;
 526
 527         if (!(drm = kzalloc(sizeof(*drm), GFP_KERNEL)))
 528                 return -ENOMEM;
 529         dev->dev_private = drm;
 530         drm->dev = dev;
 531
 532         ret = nouveau_cli_init(drm, "DRM-master", &drm->master);
 533         if (ret)
 534                 return ret;
 535
 536         ret = nouveau_cli_init(drm, "DRM", &drm->client);
 537         if (ret)
 538                 return ret;
 539
 540         dev->irq_enabled = true;
 541
 542         nvxx_client(&drm->client.base)->debug =
 543                 nvkm_dbgopt(nouveau_debug, "DRM");
 544
 545         INIT_LIST_HEAD(&drm->clients);
 546         spin_lock_init(&drm->tile.lock);
 547
 548         /* workaround an odd issue on nvc1 by disabling the device's
 549          * nosnoop capability.  hopefully won't cause issues until a
 550          * better fix is found - assuming there is one...
 551          */
 552         if (drm->client.device.info.chipset == 0xc1)
 553                 nvif_mask(&drm->client.device.object, 0x00088080, 0x00000800, 0x00000000);
 554
 555         nouveau_vga_init(drm);
 556
 557         ret = nouveau_ttm_init(drm);
 558         if (ret)
 559                 goto fail_ttm;
 560
 561         ret = nouveau_bios_init(dev);
 562         if (ret)
 563                 goto fail_bios;
 564
 565         ret = nouveau_display_create(dev);
 566         if (ret)
 567                 goto fail_dispctor;
 568
 569         if (dev->mode_config.num_crtc) {
 570                 ret = nouveau_display_init(dev);
 571                 if (ret)
 572                         goto fail_dispinit;
 573         }
 574
 575         nouveau_debugfs_init(drm);
 576         nouveau_hwmon_init(dev);
 577         nouveau_accel_init(drm);
 578         nouveau_fbcon_init(dev);
 579         nouveau_led_init(dev);
 580
 581         if (nouveau_pmops_runtime()) {
 582                 pm_runtime_use_autosuspend(dev->dev);
 583                 pm_runtime_set_autosuspend_delay(dev->dev, 5000);
 584                 pm_runtime_set_active(dev->dev);
 585                 pm_runtime_allow(dev->dev);
 586                 pm_runtime_mark_last_busy(dev->dev);
 587                 pm_runtime_put(dev->dev);
 588         } else {
 589                 /* enable polling for external displays */
 590                 drm_kms_helper_poll_enable(dev);
 591         }
 592         return 0;
 593
 594 fail_dispinit:
 595         nouveau_display_destroy(dev);
 596 fail_dispctor:
 597         nouveau_bios_takedown(dev);
 598 fail_bios:
 599         nouveau_ttm_fini(drm);
 600 fail_ttm:
 601         nouveau_vga_fini(drm);
 602         nouveau_cli_fini(&drm->client);
 603         nouveau_cli_fini(&drm->master);
 604         kfree(drm);
 605         return ret;
 606 }
 607
 608 static void
 609 nouveau_drm_unload(struct drm_device *dev)
 610 {
 611         struct nouveau_drm *drm = nouveau_drm(dev);
 612
 613         if (nouveau_pmops_runtime()) {
 614                 pm_runtime_get_sync(dev->dev);
 615                 pm_runtime_forbid(dev->dev);
 616         }
 617
 618         nouveau_led_fini(dev);
 619         nouveau_fbcon_fini(dev);
 620         nouveau_accel_fini(drm);
 621         nouveau_hwmon_fini(dev);
 622         nouveau_debugfs_fini(drm);
 623
 624         if (dev->mode_config.num_crtc)
 625                 nouveau_display_fini(dev, false);
 626         nouveau_display_destroy(dev);
 627
 628         nouveau_bios_takedown(dev);
 629
 630         nouveau_ttm_fini(drm);
 631         nouveau_vga_fini(drm);
 632
 633         nouveau_cli_fini(&drm->client);
 634         nouveau_cli_fini(&drm->master);
 635         kfree(drm);
 636 }
 637
 638 void
 639 nouveau_drm_device_remove(struct drm_device *dev)
 640 {
 641         struct nouveau_drm *drm = nouveau_drm(dev);
 642         struct nvkm_client *client;
 643         struct nvkm_device *device;
 644
 645         dev->irq_enabled = false;
 646         client = nvxx_client(&drm->client.base);
 647         device = nvkm_device_find(client->device);
 648         drm_put_dev(dev);
 649
 650         nvkm_device_del(&device);
 651 }
 652
 653 static void
 654 nouveau_drm_remove(struct pci_dev *pdev)
 655 {
 656         struct drm_device *dev = pci_get_drvdata(pdev);
 657
 658         nouveau_drm_device_remove(dev);
 659 }
 660
 661 static int
 662 nouveau_do_suspend(struct drm_device *dev, bool runtime)
 663 {
 664         struct nouveau_drm *drm = nouveau_drm(dev);
 665         int ret;
 666
 667         nouveau_led_suspend(dev);
 668
 669         if (dev->mode_config.num_crtc) {
 670                 NV_DEBUG(drm, "suspending console...\n");
 671                 nouveau_fbcon_set_suspend(dev, 1);
 672                 NV_DEBUG(drm, "suspending display...\n");
 673                 ret = nouveau_display_suspend(dev, runtime);
 674                 if (ret)
 675                         return ret;
 676         }
 677
 678         NV_DEBUG(drm, "evicting buffers...\n");
 679         ttm_bo_evict_mm(&drm->ttm.bdev, TTM_PL_VRAM);
 680
 681         NV_DEBUG(drm, "waiting for kernel channels to go idle...\n");
 682         if (drm->cechan) {
 683                 ret = nouveau_channel_idle(drm->cechan);
 684                 if (ret)
 685                         goto fail_display;
 686         }
 687
 688         if (drm->channel) {
 689                 ret = nouveau_channel_idle(drm->channel);
 690                 if (ret)
 691                         goto fail_display;
 692         }
 693
 694         NV_DEBUG(drm, "suspending fence...\n");
 695         if (drm->fence && nouveau_fence(drm)->suspend) {
 696                 if (!nouveau_fence(drm)->suspend(drm)) {
 697                         ret = -ENOMEM;
 698                         goto fail_display;
 699                 }
 700         }
 701
 702         NV_DEBUG(drm, "suspending object tree...\n");
 703         ret = nvif_client_suspend(&drm->master.base);
 704         if (ret)
 705                 goto fail_client;
 706
 707         return 0;
 708
 709 fail_client:
 710         if (drm->fence && nouveau_fence(drm)->resume)
 711                 nouveau_fence(drm)->resume(drm);
 712
 713 fail_display:
 714         if (dev->mode_config.num_crtc) {
 715                 NV_DEBUG(drm, "resuming display...\n");
 716                 nouveau_display_resume(dev, runtime);
 717         }
 718         return ret;
 719 }
 720
 721 static int
 722 nouveau_do_resume(struct drm_device *dev, bool runtime)
 723 {
 724         struct nouveau_drm *drm = nouveau_drm(dev);
 725
 726         NV_DEBUG(drm, "resuming object tree...\n");
 727         nvif_client_resume(&drm->master.base);
 728
 729         NV_DEBUG(drm, "resuming fence...\n");
 730         if (drm->fence && nouveau_fence(drm)->resume)
 731                 nouveau_fence(drm)->resume(drm);
 732
 733         nouveau_run_vbios_init(dev);
 734
 735         if (dev->mode_config.num_crtc) {
 736                 NV_DEBUG(drm, "resuming display...\n");
 737                 nouveau_display_resume(dev, runtime);
 738                 NV_DEBUG(drm, "resuming console...\n");
 739                 nouveau_fbcon_set_suspend(dev, 0);
 740         }
 741
 742         nouveau_led_resume(dev);
 743
 744         return 0;
 745 }
 746
 747 int
 748 nouveau_pmops_suspend(struct device *dev)
 749 {
 750         struct pci_dev *pdev = to_pci_dev(dev);
 751         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 752         int ret;
 753
 754         if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF ||
 755             drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF)
 756                 return 0;
 757
 758         ret = nouveau_do_suspend(drm_dev, false);
 759         if (ret)
 760                 return ret;
 761
 762         pci_save_state(pdev);
 763         pci_disable_device(pdev);
 764         pci_set_power_state(pdev, PCI_D3hot);
 765         udelay(200);
 766         return 0;
 767 }
 768
 769 int
 770 nouveau_pmops_resume(struct device *dev)
 771 {
 772         struct pci_dev *pdev = to_pci_dev(dev);
 773         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 774         int ret;
 775
 776         if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF ||
 777             drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF)
 778                 return 0;
 779
 780         pci_set_power_state(pdev, PCI_D0);
 781         pci_restore_state(pdev);
 782         ret = pci_enable_device(pdev);
 783         if (ret)
 784                 return ret;
 785         pci_set_master(pdev);
 786
 787         ret = nouveau_do_resume(drm_dev, false);
 788
 789         /* Monitors may have been connected / disconnected during suspend */
 790         schedule_work(&nouveau_drm(drm_dev)->hpd_work);
 791
 792         return ret;
 793 }
 794
 795 static int
 796 nouveau_pmops_freeze(struct device *dev)
 797 {
 798         struct pci_dev *pdev = to_pci_dev(dev);
 799         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 800         return nouveau_do_suspend(drm_dev, false);
 801 }
 802
 803 static int
 804 nouveau_pmops_thaw(struct device *dev)
 805 {
 806         struct pci_dev *pdev = to_pci_dev(dev);
 807         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 808         return nouveau_do_resume(drm_dev, false);
 809 }
 810
 811 bool
 812 nouveau_pmops_runtime(void)
 813 {
 814         if (nouveau_runtime_pm == -1)
 815                 return nouveau_is_optimus() || nouveau_is_v1_dsm();
 816         return nouveau_runtime_pm == 1;
 817 }
 818
 819 static int
 820 nouveau_pmops_runtime_suspend(struct device *dev)
 821 {
 822         struct pci_dev *pdev = to_pci_dev(dev);
 823         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 824         int ret;
 825
 826         if (!nouveau_pmops_runtime()) {
 827                 pm_runtime_forbid(dev);
 828                 return -EBUSY;
 829         }
 830
 831         drm_kms_helper_poll_disable(drm_dev);
 832         nouveau_switcheroo_optimus_dsm();
 833         ret = nouveau_do_suspend(drm_dev, true);
 834         pci_save_state(pdev);
 835         pci_disable_device(pdev);
 836         pci_ignore_hotplug(pdev);
 837         pci_set_power_state(pdev, PCI_D3cold);
 838         drm_dev->switch_power_state = DRM_SWITCH_POWER_DYNAMIC_OFF;
 839         return ret;
 840 }
 841
 842 static int
 843 nouveau_pmops_runtime_resume(struct device *dev)
 844 {
 845         struct pci_dev *pdev = to_pci_dev(dev);
 846         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 847         struct nvif_device *device = &nouveau_drm(drm_dev)->client.device;
 848         int ret;
 849
 850         if (!nouveau_pmops_runtime()) {
 851                 pm_runtime_forbid(dev);
 852                 return -EBUSY;
 853         }
 854
 855         pci_set_power_state(pdev, PCI_D0);
 856         pci_restore_state(pdev);
 857         ret = pci_enable_device(pdev);
 858         if (ret)
 859                 return ret;
 860         pci_set_master(pdev);
 861
 862         ret = nouveau_do_resume(drm_dev, true);
 863
 864         /* do magic */
 865         nvif_mask(&device->object, 0x088488, (1 << 25), (1 << 25));
 866         drm_dev->switch_power_state = DRM_SWITCH_POWER_ON;
 867
 868         /* Monitors may have been connected / disconnected during suspend */
 869         schedule_work(&nouveau_drm(drm_dev)->hpd_work);
 870
 871         return ret;
 872 }
 873
 874 static int
 875 nouveau_pmops_runtime_idle(struct device *dev)
 876 {
 877         struct pci_dev *pdev = to_pci_dev(dev);
 878         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 879         struct nouveau_drm *drm = nouveau_drm(drm_dev);
 880         struct drm_crtc *crtc;
 881
 882         if (!nouveau_pmops_runtime()) {
 883                 pm_runtime_forbid(dev);
 884                 return -EBUSY;
 885         }
 886
 887         list_for_each_entry(crtc, &drm->dev->mode_config.crtc_list, head) {
 888                 if (crtc->enabled) {
 889                         DRM_DEBUG_DRIVER("failing to power off - crtc active\n");
 890                         return -EBUSY;
 891                 }
 892         }
 893         pm_runtime_mark_last_busy(dev);
 894         pm_runtime_autosuspend(dev);
 895         /* we don't want the main rpm_idle to call suspend - we want to autosuspend */
 896         return 1;
 897 }
 898
 899 static int
 900 nouveau_drm_open(struct drm_device *dev, struct drm_file *fpriv)
 901 {
 902         struct nouveau_drm *drm = nouveau_drm(dev);
 903         struct nouveau_cli *cli;
 904         char name[32], tmpname[TASK_COMM_LEN];
 905         int ret;
 906
 907         /* need to bring up power immediately if opening device */
 908         ret = pm_runtime_get_sync(dev->dev);
 909         if (ret < 0 && ret != -EACCES)
 910                 return ret;
 911
 912         get_task_comm(tmpname, current);
 913         snprintf(name, sizeof(name), "%s[%d]", tmpname, pid_nr(fpriv->pid));
 914
 915         if (!(cli = kzalloc(sizeof(*cli), GFP_KERNEL)))
 916                 return ret;
 917
 918         ret = nouveau_cli_init(drm, name, cli);
 919         if (ret)
 920                 goto done;
 921
 922         cli->base.super = false;
 923
 924         fpriv->driver_priv = cli;
 925
 926         mutex_lock(&drm->client.mutex);
 927         list_add(&cli->head, &drm->clients);
 928         mutex_unlock(&drm->client.mutex);
 929
 930 done:
 931         if (ret && cli) {
 932                 nouveau_cli_fini(cli);
 933                 kfree(cli);
 934         }
 935
 936         pm_runtime_mark_last_busy(dev->dev);
 937         pm_runtime_put_autosuspend(dev->dev);
 938         return ret;
 939 }
 940
 941 static void
 942 nouveau_drm_postclose(struct drm_device *dev, struct drm_file *fpriv)
 943 {
 944         struct nouveau_cli *cli = nouveau_cli(fpriv);
 945         struct nouveau_drm *drm = nouveau_drm(dev);
 946
 947         pm_runtime_get_sync(dev->dev);
 948
 949         mutex_lock(&cli->mutex);
 950         if (cli->abi16)
 951                 nouveau_abi16_fini(cli->abi16);
 952         mutex_unlock(&cli->mutex);
 953
 954         mutex_lock(&drm->client.mutex);
 955         list_del(&cli->head);
 956         mutex_unlock(&drm->client.mutex);
 957
 958         nouveau_cli_fini(cli);
 959         kfree(cli);
 960         pm_runtime_mark_last_busy(dev->dev);
 961         pm_runtime_put_autosuspend(dev->dev);
 962 }
 963
 964 static const struct drm_ioctl_desc
 965 nouveau_ioctls[] = {
 966         DRM_IOCTL_DEF_DRV(NOUVEAU_GETPARAM, nouveau_abi16_ioctl_getparam, DRM_AUTH|DRM_RENDER_ALLOW),
 967         DRM_IOCTL_DEF_DRV(NOUVEAU_SETPARAM, nouveau_abi16_ioctl_setparam, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
 968         DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_ALLOC, nouveau_abi16_ioctl_channel_alloc, DRM_AUTH|DRM_RENDER_ALLOW),
 969         DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_FREE, nouveau_abi16_ioctl_channel_free, DRM_AUTH|DRM_RENDER_ALLOW),
 970         DRM_IOCTL_DEF_DRV(NOUVEAU_GROBJ_ALLOC, nouveau_abi16_ioctl_grobj_alloc, DRM_AUTH|DRM_RENDER_ALLOW),
 971         DRM_IOCTL_DEF_DRV(NOUVEAU_NOTIFIEROBJ_ALLOC, nouveau_abi16_ioctl_notifierobj_alloc, DRM_AUTH|DRM_RENDER_ALLOW),
 972         DRM_IOCTL_DEF_DRV(NOUVEAU_GPUOBJ_FREE, nouveau_abi16_ioctl_gpuobj_free, DRM_AUTH|DRM_RENDER_ALLOW),
 973         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_NEW, nouveau_gem_ioctl_new, DRM_AUTH|DRM_RENDER_ALLOW),
 974         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_PUSHBUF, nouveau_gem_ioctl_pushbuf, DRM_AUTH|DRM_RENDER_ALLOW),
 975         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_PREP, nouveau_gem_ioctl_cpu_prep, DRM_AUTH|DRM_RENDER_ALLOW),
 976         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_FINI, nouveau_gem_ioctl_cpu_fini, DRM_AUTH|DRM_RENDER_ALLOW),
 977         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_INFO, nouveau_gem_ioctl_info, DRM_AUTH|DRM_RENDER_ALLOW),
 978 };
 979
 980 long
 981 nouveau_drm_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 982 {
 983         struct drm_file *filp = file->private_data;
 984         struct drm_device *dev = filp->minor->dev;
 985         long ret;
 986
 987         ret = pm_runtime_get_sync(dev->dev);
 988         if (ret < 0 && ret != -EACCES)
 989                 return ret;
 990
 991         switch (_IOC_NR(cmd) - DRM_COMMAND_BASE) {
 992         case DRM_NOUVEAU_NVIF:
 993                 ret = usif_ioctl(filp, (void __user *)arg, _IOC_SIZE(cmd));
 994                 break;
 995         default:
 996                 ret = drm_ioctl(file, cmd, arg);
 997                 break;
 998         }
 999
1000         pm_runtime_mark_last_busy(dev->dev);
1001         pm_runtime_put_autosuspend(dev->dev);
1002         return ret;
1003 }
1004
1005 static const struct file_operations
1006 nouveau_driver_fops = {
1007         .owner = THIS_MODULE,
1008         .open = drm_open,
1009         .release = drm_release,
1010         .unlocked_ioctl = nouveau_drm_ioctl,
1011         .mmap = nouveau_ttm_mmap,
1012         .poll = drm_poll,
1013         .read = drm_read,
1014 #if defined(CONFIG_COMPAT)
1015         .compat_ioctl = nouveau_compat_ioctl,
1016 #endif
1017         .llseek = noop_llseek,
1018 };
1019
1020 static struct drm_driver
1021 driver_stub = {
1022         .driver_features =
1023                 DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME | DRIVER_RENDER |
1024                 DRIVER_KMS_LEGACY_CONTEXT,
1025
1026         .load = nouveau_drm_load,
1027         .unload = nouveau_drm_unload,
1028         .open = nouveau_drm_open,
1029         .postclose = nouveau_drm_postclose,
1030         .lastclose = nouveau_vga_lastclose,
1031
1032 #if defined(CONFIG_DEBUG_FS)
1033         .debugfs_init = nouveau_drm_debugfs_init,
1034 #endif
1035
1036         .enable_vblank = nouveau_display_vblank_enable,
1037         .disable_vblank = nouveau_display_vblank_disable,
1038         .get_scanout_position = nouveau_display_scanoutpos,
1039         .get_vblank_timestamp = drm_calc_vbltimestamp_from_scanoutpos,
1040
1041         .ioctls = nouveau_ioctls,
1042         .num_ioctls = ARRAY_SIZE(nouveau_ioctls),
1043         .fops = &nouveau_driver_fops,
1044
1045         .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
1046         .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
1047         .gem_prime_export = drm_gem_prime_export,
1048         .gem_prime_import = drm_gem_prime_import,
1049         .gem_prime_pin = nouveau_gem_prime_pin,
1050         .gem_prime_res_obj = nouveau_gem_prime_res_obj,
1051         .gem_prime_unpin = nouveau_gem_prime_unpin,
1052         .gem_prime_get_sg_table = nouveau_gem_prime_get_sg_table,
1053         .gem_prime_import_sg_table = nouveau_gem_prime_import_sg_table,
1054         .gem_prime_vmap = nouveau_gem_prime_vmap,
1055         .gem_prime_vunmap = nouveau_gem_prime_vunmap,
1056
1057         .gem_free_object_unlocked = nouveau_gem_object_del,
1058         .gem_open_object = nouveau_gem_object_open,
1059         .gem_close_object = nouveau_gem_object_close,
1060
1061         .dumb_create = nouveau_display_dumb_create,
1062         .dumb_map_offset = nouveau_display_dumb_map_offset,
1063
1064         .name = DRIVER_NAME,
1065         .desc = DRIVER_DESC,
1066 #ifdef GIT_REVISION
1067         .date = GIT_REVISION,
1068 #else
1069         .date = DRIVER_DATE,
1070 #endif
1071         .major = DRIVER_MAJOR,
1072         .minor = DRIVER_MINOR,
1073         .patchlevel = DRIVER_PATCHLEVEL,
1074 };
1075
1076 static struct pci_device_id
1077 nouveau_drm_pci_table[] = {
1078         {
1079                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID),
1080                 .class = PCI_BASE_CLASS_DISPLAY << 16,
1081                 .class_mask  = 0xff << 16,
1082         },
1083         {
1084                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA_SGS, PCI_ANY_ID),
1085                 .class = PCI_BASE_CLASS_DISPLAY << 16,
1086                 .class_mask  = 0xff << 16,
1087         },
1088         {}
1089 };
1090
1091 static void nouveau_display_options(void)
1092 {
1093         DRM_DEBUG_DRIVER("Loading Nouveau with parameters:\n");
1094
1095         DRM_DEBUG_DRIVER("... tv_disable   : %d\n", nouveau_tv_disable);
1096         DRM_DEBUG_DRIVER("... ignorelid    : %d\n", nouveau_ignorelid);
1097         DRM_DEBUG_DRIVER("... duallink     : %d\n", nouveau_duallink);
1098         DRM_DEBUG_DRIVER("... nofbaccel    : %d\n", nouveau_nofbaccel);
1099         DRM_DEBUG_DRIVER("... config       : %s\n", nouveau_config);
1100         DRM_DEBUG_DRIVER("... debug        : %s\n", nouveau_debug);
1101         DRM_DEBUG_DRIVER("... noaccel      : %d\n", nouveau_noaccel);
1102         DRM_DEBUG_DRIVER("... modeset      : %d\n", nouveau_modeset);
1103         DRM_DEBUG_DRIVER("... runpm        : %d\n", nouveau_runtime_pm);
1104         DRM_DEBUG_DRIVER("... vram_pushbuf : %d\n", nouveau_vram_pushbuf);
1105         DRM_DEBUG_DRIVER("... hdmimhz      : %d\n", nouveau_hdmimhz);
1106 }
1107
1108 static const struct dev_pm_ops nouveau_pm_ops = {
1109         .suspend = nouveau_pmops_suspend,
1110         .resume = nouveau_pmops_resume,
1111         .freeze = nouveau_pmops_freeze,
1112         .thaw = nouveau_pmops_thaw,
1113         .poweroff = nouveau_pmops_freeze,
1114         .restore = nouveau_pmops_resume,
1115         .runtime_suspend = nouveau_pmops_runtime_suspend,
1116         .runtime_resume = nouveau_pmops_runtime_resume,
1117         .runtime_idle = nouveau_pmops_runtime_idle,
1118 };
1119
1120 static struct pci_driver
1121 nouveau_drm_pci_driver = {
1122         .name = "nouveau",
1123         .id_table = nouveau_drm_pci_table,
1124         .probe = nouveau_drm_probe,
1125         .remove = nouveau_drm_remove,
1126         .driver.pm = &nouveau_pm_ops,
1127 };
1128
1129 struct drm_device *
1130 nouveau_platform_device_create(const struct nvkm_device_tegra_func *func,
1131                                struct platform_device *pdev,
1132                                struct nvkm_device **pdevice)
1133 {
1134         struct drm_device *drm;
1135         int err;
1136
1137         err = nvkm_device_tegra_new(func, pdev, nouveau_config, nouveau_debug,
1138                                     true, true, ~0ULL, pdevice);
1139         if (err)
1140                 goto err_free;
1141
1142         drm = drm_dev_alloc(&driver_platform, &pdev->dev);
1143         if (IS_ERR(drm)) {
1144                 err = PTR_ERR(drm);
1145                 goto err_free;
1146         }
1147
1148         platform_set_drvdata(pdev, drm);
1149
1150         return drm;
1151
1152 err_free:
1153         nvkm_device_del(pdevice);
1154
1155         return ERR_PTR(err);
1156 }
1157
1158 static int __init
1159 nouveau_drm_init(void)
1160 {
1161         driver_pci = driver_stub;
1162         driver_platform = driver_stub;
1163
1164         nouveau_display_options();
1165
1166         if (nouveau_modeset == -1) {
1167                 if (vgacon_text_force())
1168                         nouveau_modeset = 0;
1169         }
1170
1171         if (!nouveau_modeset)
1172                 return 0;
1173
1174 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER
1175         platform_driver_register(&nouveau_platform_driver);
1176 #endif
1177
1178         nouveau_register_dsm_handler();
1179         nouveau_backlight_ctor();
1180
1181 #ifdef CONFIG_PCI
1182         return pci_register_driver(&nouveau_drm_pci_driver);
1183 #else
1184         return 0;
1185 #endif
1186 }
1187
1188 static void __exit
1189 nouveau_drm_exit(void)
1190 {
1191         if (!nouveau_modeset)
1192                 return;
1193
1194 #ifdef CONFIG_PCI
1195         pci_unregister_driver(&nouveau_drm_pci_driver);
1196 #endif
1197         nouveau_backlight_dtor();
1198         nouveau_unregister_dsm_handler();
1199
1200 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER
1201         platform_driver_unregister(&nouveau_platform_driver);
1202 #endif
1203 }
1204
1205 module_init(nouveau_drm_init);
1206 module_exit(nouveau_drm_exit);
1207
1208 MODULE_DEVICE_TABLE(pci, nouveau_drm_pci_table);
1209 MODULE_AUTHOR(DRIVER_AUTHOR);
1210 MODULE_DESCRIPTION(DRIVER_DESC);
1211 MODULE_LICENSE("GPL and additional rights");