drivers/gpu/drm/nouveau/nouveau_abi16.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  */
  23
  24 #include <nvif/client.h>
  25 #include <nvif/driver.h>
  26 #include <nvif/ioctl.h>
  27 #include <nvif/class.h>
  28
  29 #include "nouveau_drm.h"
  30 #include "nouveau_dma.h"
  31 #include "nouveau_gem.h"
  32 #include "nouveau_chan.h"
  33 #include "nouveau_abi16.h"
  34
  35 struct nouveau_abi16 *
  36 nouveau_abi16_get(struct drm_file *file_priv, struct drm_device *dev)
  37 {
  38         struct nouveau_cli *cli = nouveau_cli(file_priv);
  39         mutex_lock(&cli->mutex);
  40         if (!cli->abi16) {
  41                 struct nouveau_abi16 *abi16;
  42                 cli->abi16 = abi16 = kzalloc(sizeof(*abi16), GFP_KERNEL);
  43                 if (cli->abi16) {
  44                         struct nv_device_v0 args = {
  45                                 .device = ~0ULL,
  46                         };
  47
  48                         INIT_LIST_HEAD(&abi16->channels);
  49
  50                         /* allocate device object targeting client's default
  51                          * device (ie. the one that belongs to the fd it
  52                          * opened)
  53                          */
  54                         if (nvif_device_init(&cli->base.object,
  55                                              NOUVEAU_ABI16_DEVICE, NV_DEVICE,
  56                                              &args, sizeof(args),
  57                                              &abi16->device) == 0)
  58                                 return cli->abi16;
  59
  60                         kfree(cli->abi16);
  61                         cli->abi16 = NULL;
  62                 }
  63
  64                 mutex_unlock(&cli->mutex);
  65         }
  66         return cli->abi16;
  67 }
  68
  69 int
  70 nouveau_abi16_put(struct nouveau_abi16 *abi16, int ret)
  71 {
  72         struct nouveau_cli *cli = (void *)abi16->device.object.client;
  73         mutex_unlock(&cli->mutex);
  74         return ret;
  75 }
  76
  77 s32
  78 nouveau_abi16_swclass(struct nouveau_drm *drm)
  79 {
  80         switch (drm->device.info.family) {
  81         case NV_DEVICE_INFO_V0_TNT:
  82                 return NVIF_IOCTL_NEW_V0_SW_NV04;
  83         case NV_DEVICE_INFO_V0_CELSIUS:
  84         case NV_DEVICE_INFO_V0_KELVIN:
  85         case NV_DEVICE_INFO_V0_RANKINE:
  86         case NV_DEVICE_INFO_V0_CURIE:
  87                 return NVIF_IOCTL_NEW_V0_SW_NV10;
  88         case NV_DEVICE_INFO_V0_TESLA:
  89                 return NVIF_IOCTL_NEW_V0_SW_NV50;
  90         case NV_DEVICE_INFO_V0_FERMI:
  91         case NV_DEVICE_INFO_V0_KEPLER:
  92         case NV_DEVICE_INFO_V0_MAXWELL:
  93                 return NVIF_IOCTL_NEW_V0_SW_GF100;
  94         }
  95
  96         return 0x0000;
  97 }
  98
  99 static void
 100 nouveau_abi16_ntfy_fini(struct nouveau_abi16_chan *chan,
 101                         struct nouveau_abi16_ntfy *ntfy)
 102 {
 103         nvif_object_fini(&ntfy->object);
 104         nvkm_mm_free(&chan->heap, &ntfy->node);
 105         list_del(&ntfy->head);
 106         kfree(ntfy);
 107 }
 108
 109 static void
 110 nouveau_abi16_chan_fini(struct nouveau_abi16 *abi16,
 111                         struct nouveau_abi16_chan *chan)
 112 {
 113         struct nouveau_abi16_ntfy *ntfy, *temp;
 114
 115         /* wait for all activity to stop before releasing notify object, which
 116          * may be still in use */
 117         if (chan->chan && chan->ntfy)
 118                 nouveau_channel_idle(chan->chan);
 119
 120         /* cleanup notifier state */
 121         list_for_each_entry_safe(ntfy, temp, &chan->notifiers, head) {
 122                 nouveau_abi16_ntfy_fini(chan, ntfy);
 123         }
 124
 125         if (chan->ntfy) {
 126                 nouveau_bo_vma_del(chan->ntfy, &chan->ntfy_vma);
 127                 nouveau_bo_unpin(chan->ntfy);
 128                 drm_gem_object_unreference_unlocked(&chan->ntfy->gem);
 129         }
 130
 131         if (chan->heap.block_size)
 132                 nvkm_mm_fini(&chan->heap);
 133
 134         /* destroy channel object, all children will be killed too */
 135         if (chan->chan) {
 136                 abi16->handles &= ~(1ULL << (chan->chan->user.handle & 0xffff));
 137                 nouveau_channel_idle(chan->chan);
 138                 nouveau_channel_del(&chan->chan);
 139         }
 140
 141         list_del(&chan->head);
 142         kfree(chan);
 143 }
 144
 145 void
 146 nouveau_abi16_fini(struct nouveau_abi16 *abi16)
 147 {
 148         struct nouveau_cli *cli = (void *)abi16->device.object.client;
 149         struct nouveau_abi16_chan *chan, *temp;
 150
 151         /* cleanup channels */
 152         list_for_each_entry_safe(chan, temp, &abi16->channels, head) {
 153                 nouveau_abi16_chan_fini(abi16, chan);
 154         }
 155
 156         /* destroy the device object */
 157         nvif_device_fini(&abi16->device);
 158
 159         kfree(cli->abi16);
 160         cli->abi16 = NULL;
 161 }
 162
 163 int
 164 nouveau_abi16_ioctl_getparam(ABI16_IOCTL_ARGS)
 165 {
 166         struct nouveau_cli *cli = nouveau_cli(file_priv);
 167         struct nouveau_drm *drm = nouveau_drm(dev);
 168         struct nvif_device *device = &drm->device;
 169         struct nvkm_gr *gr = nvxx_gr(device);
 170         struct drm_nouveau_getparam *getparam = data;
 171
 172         switch (getparam->param) {
 173         case NOUVEAU_GETPARAM_CHIPSET_ID:
 174                 getparam->value = device->info.chipset;
 175                 break;
 176         case NOUVEAU_GETPARAM_PCI_VENDOR:
 177                 if (nvxx_device(device)->func->pci)
 178                         getparam->value = dev->pdev->vendor;
 179                 else
 180                         getparam->value = 0;
 181                 break;
 182         case NOUVEAU_GETPARAM_PCI_DEVICE:
 183                 if (nvxx_device(device)->func->pci)
 184                         getparam->value = dev->pdev->device;
 185                 else
 186                         getparam->value = 0;
 187                 break;
 188         case NOUVEAU_GETPARAM_BUS_TYPE:
 189                 if (!nvxx_device(device)->func->pci)
 190                         getparam->value = 3;
 191                 else
 192                 if (drm_pci_device_is_agp(dev))
 193                         getparam->value = 0;
 194                 else
 195                 if (!pci_is_pcie(dev->pdev))
 196                         getparam->value = 1;
 197                 else
 198                         getparam->value = 2;
 199                 break;
 200         case NOUVEAU_GETPARAM_FB_SIZE:
 201                 getparam->value = drm->gem.vram_available;
 202                 break;
 203         case NOUVEAU_GETPARAM_AGP_SIZE:
 204                 getparam->value = drm->gem.gart_available;
 205                 break;
 206         case NOUVEAU_GETPARAM_VM_VRAM_BASE:
 207                 getparam->value = 0; /* deprecated */
 208                 break;
 209         case NOUVEAU_GETPARAM_PTIMER_TIME:
 210                 getparam->value = nvif_device_time(device);
 211                 break;
 212         case NOUVEAU_GETPARAM_HAS_BO_USAGE:
 213                 getparam->value = 1;
 214                 break;
 215         case NOUVEAU_GETPARAM_HAS_PAGEFLIP:
 216                 getparam->value = 1;
 217                 break;
 218         case NOUVEAU_GETPARAM_GRAPH_UNITS:
 219                 getparam->value = nvkm_gr_units(gr);
 220                 break;
 221         default:
 222                 NV_PRINTK(dbg, cli, "unknown parameter %lld\n", getparam->param);
 223                 return -EINVAL;
 224         }
 225
 226         return 0;
 227 }
 228
 229 int
 230 nouveau_abi16_ioctl_setparam(ABI16_IOCTL_ARGS)
 231 {
 232         return -EINVAL;
 233 }
 234
 235 int
 236 nouveau_abi16_ioctl_channel_alloc(ABI16_IOCTL_ARGS)
 237 {
 238         struct drm_nouveau_channel_alloc *init = data;
 239         struct nouveau_cli *cli = nouveau_cli(file_priv);
 240         struct nouveau_drm *drm = nouveau_drm(dev);
 241         struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv, dev);
 242         struct nouveau_abi16_chan *chan;
 243         struct nvif_device *device;
 244         int ret;
 245
 246         if (unlikely(!abi16))
 247                 return -ENOMEM;
 248
 249         if (!drm->channel)
 250                 return nouveau_abi16_put(abi16, -ENODEV);
 251
 252         device = &abi16->device;
 253
 254         /* hack to allow channel engine type specification on kepler */
 255         if (device->info.family >= NV_DEVICE_INFO_V0_KEPLER) {
 256                 if (init->fb_ctxdma_handle != ~0)
 257                         init->fb_ctxdma_handle = KEPLER_CHANNEL_GPFIFO_A_V0_ENGINE_GR;
 258                 else
 259                         init->fb_ctxdma_handle = init->tt_ctxdma_handle;
 260
 261                 /* allow flips to be executed if this is a graphics channel */
 262                 init->tt_ctxdma_handle = 0;
 263                 if (init->fb_ctxdma_handle == KEPLER_CHANNEL_GPFIFO_A_V0_ENGINE_GR)
 264                         init->tt_ctxdma_handle = 1;
 265         }
 266
 267         if (init->fb_ctxdma_handle == ~0 || init->tt_ctxdma_handle == ~0)
 268                 return nouveau_abi16_put(abi16, -EINVAL);
 269
 270         /* allocate "abi16 channel" data and make up a handle for it */
 271         init->channel = __ffs64(~abi16->handles);
 272         if (~abi16->handles == 0)
 273                 return nouveau_abi16_put(abi16, -ENOSPC);
 274
 275         chan = kzalloc(sizeof(*chan), GFP_KERNEL);
 276         if (!chan)
 277                 return nouveau_abi16_put(abi16, -ENOMEM);
 278
 279         INIT_LIST_HEAD(&chan->notifiers);
 280         list_add(&chan->head, &abi16->channels);
 281         abi16->handles |= (1ULL << init->channel);
 282
 283         /* create channel object and initialise dma and fence management */
 284         ret = nouveau_channel_new(drm, device,
 285                                   NOUVEAU_ABI16_CHAN(init->channel),
 286                                   init->fb_ctxdma_handle,
 287                                   init->tt_ctxdma_handle, &chan->chan);
 288         if (ret)
 289                 goto done;
 290
 291         if (device->info.family >= NV_DEVICE_INFO_V0_TESLA)
 292                 init->pushbuf_domains = NOUVEAU_GEM_DOMAIN_VRAM |
 293                                         NOUVEAU_GEM_DOMAIN_GART;
 294         else
 295         if (chan->chan->push.buffer->bo.mem.mem_type == TTM_PL_VRAM)
 296                 init->pushbuf_domains = NOUVEAU_GEM_DOMAIN_VRAM;
 297         else
 298                 init->pushbuf_domains = NOUVEAU_GEM_DOMAIN_GART;
 299
 300         if (device->info.family < NV_DEVICE_INFO_V0_CELSIUS) {
 301                 init->subchan[0].handle = 0x00000000;
 302                 init->subchan[0].grclass = 0x0000;
 303                 init->subchan[1].handle = chan->chan->nvsw.handle;
 304                 init->subchan[1].grclass = 0x506e;
 305                 init->nr_subchan = 2;
 306         }
 307
 308         /* Named memory object area */
 309         ret = nouveau_gem_new(dev, PAGE_SIZE, 0, NOUVEAU_GEM_DOMAIN_GART,
 310                               0, 0, &chan->ntfy);
 311         if (ret == 0)
 312                 ret = nouveau_bo_pin(chan->ntfy, TTM_PL_FLAG_TT, false);
 313         if (ret)
 314                 goto done;
 315
 316         if (device->info.family >= NV_DEVICE_INFO_V0_TESLA) {
 317                 ret = nouveau_bo_vma_add(chan->ntfy, cli->vm,
 318                                         &chan->ntfy_vma);
 319                 if (ret)
 320                         goto done;
 321         }
 322
 323         ret = drm_gem_handle_create(file_priv, &chan->ntfy->gem,
 324                                     &init->notifier_handle);
 325         if (ret)
 326                 goto done;
 327
 328         ret = nvkm_mm_init(&chan->heap, 0, PAGE_SIZE, 1);
 329 done:
 330         if (ret)
 331                 nouveau_abi16_chan_fini(abi16, chan);
 332         return nouveau_abi16_put(abi16, ret);
 333 }
 334
 335 static struct nouveau_abi16_chan *
 336 nouveau_abi16_chan(struct nouveau_abi16 *abi16, int channel)
 337 {
 338         struct nouveau_abi16_chan *chan;
 339
 340         list_for_each_entry(chan, &abi16->channels, head) {
 341                 if (chan->chan->user.handle == NOUVEAU_ABI16_CHAN(channel))
 342                         return chan;
 343         }
 344
 345         return NULL;
 346 }
 347
 348 int
 349 nouveau_abi16_ioctl_channel_free(ABI16_IOCTL_ARGS)
 350 {
 351         struct drm_nouveau_channel_free *req = data;
 352         struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv, dev);
 353         struct nouveau_abi16_chan *chan;
 354
 355         if (unlikely(!abi16))
 356                 return -ENOMEM;
 357
 358         chan = nouveau_abi16_chan(abi16, req->channel);
 359         if (!chan)
 360                 return nouveau_abi16_put(abi16, -ENOENT);
 361         nouveau_abi16_chan_fini(abi16, chan);
 362         return nouveau_abi16_put(abi16, 0);
 363 }
 364
 365 int
 366 nouveau_abi16_ioctl_grobj_alloc(ABI16_IOCTL_ARGS)
 367 {
 368         struct drm_nouveau_grobj_alloc *init = data;
 369         struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv, dev);
 370         struct nouveau_abi16_chan *chan;
 371         struct nouveau_abi16_ntfy *ntfy;
 372         struct nvif_client *client;
 373         struct nvif_sclass *sclass;
 374         s32 oclass = 0;
 375         int ret, i;
 376
 377         if (unlikely(!abi16))
 378                 return -ENOMEM;
 379
 380         if (init->handle == ~0)
 381                 return nouveau_abi16_put(abi16, -EINVAL);
 382         client = abi16->device.object.client;
 383
 384         chan = nouveau_abi16_chan(abi16, init->channel);
 385         if (!chan)
 386                 return nouveau_abi16_put(abi16, -ENOENT);
 387
 388         ret = nvif_object_sclass_get(&chan->chan->user, &sclass);
 389         if (ret < 0)
 390                 return nouveau_abi16_put(abi16, ret);
 391
 392         if ((init->class & 0x00ff) == 0x006e) {
 393                 /* nvsw: compatibility with older 0x*6e class identifier */
 394                 for (i = 0; !oclass && i < ret; i++) {
 395                         switch (sclass[i].oclass) {
 396                         case NVIF_IOCTL_NEW_V0_SW_NV04:
 397                         case NVIF_IOCTL_NEW_V0_SW_NV10:
 398                         case NVIF_IOCTL_NEW_V0_SW_NV50:
 399                         case NVIF_IOCTL_NEW_V0_SW_GF100:
 400                                 oclass = sclass[i].oclass;
 401                                 break;
 402                         default:
 403                                 break;
 404                         }
 405                 }
 406         } else
 407         if ((init->class & 0x00ff) == 0x00b1) {
 408                 /* msvld: compatibility with incorrect version exposure */
 409                 for (i = 0; i < ret; i++) {
 410                         if ((sclass[i].oclass & 0x00ff) == 0x00b1) {
 411                                 oclass = sclass[i].oclass;
 412                                 break;
 413                         }
 414                 }
 415         } else
 416         if ((init->class & 0x00ff) == 0x00b2) { /* mspdec */
 417                 /* mspdec: compatibility with incorrect version exposure */
 418                 for (i = 0; i < ret; i++) {
 419                         if ((sclass[i].oclass & 0x00ff) == 0x00b2) {
 420                                 oclass = sclass[i].oclass;
 421                                 break;
 422                         }
 423                 }
 424         } else
 425         if ((init->class & 0x00ff) == 0x00b3) { /* msppp */
 426                 /* msppp: compatibility with incorrect version exposure */
 427                 for (i = 0; i < ret; i++) {
 428                         if ((sclass[i].oclass & 0x00ff) == 0x00b3) {
 429                                 oclass = sclass[i].oclass;
 430                                 break;
 431                         }
 432                 }
 433         } else {
 434                 oclass = init->class;
 435         }
 436
 437         nvif_object_sclass_put(&sclass);
 438         if (!oclass)
 439                 return nouveau_abi16_put(abi16, -EINVAL);
 440
 441         ntfy = kzalloc(sizeof(*ntfy), GFP_KERNEL);
 442         if (!ntfy)
 443                 return nouveau_abi16_put(abi16, -ENOMEM);
 444
 445         list_add(&ntfy->head, &chan->notifiers);
 446
 447         client->route = NVDRM_OBJECT_ABI16;
 448         ret = nvif_object_init(&chan->chan->user, init->handle, oclass,
 449                                NULL, 0, &ntfy->object);
 450         client->route = NVDRM_OBJECT_NVIF;
 451
 452         if (ret)
 453                 nouveau_abi16_ntfy_fini(chan, ntfy);
 454         return nouveau_abi16_put(abi16, ret);
 455 }
 456
 457 int
 458 nouveau_abi16_ioctl_notifierobj_alloc(ABI16_IOCTL_ARGS)
 459 {
 460         struct drm_nouveau_notifierobj_alloc *info = data;
 461         struct nouveau_drm *drm = nouveau_drm(dev);
 462         struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv, dev);
 463         struct nouveau_abi16_chan *chan;
 464         struct nouveau_abi16_ntfy *ntfy;
 465         struct nvif_device *device = &abi16->device;
 466         struct nvif_client *client;
 467         struct nv_dma_v0 args = {};
 468         int ret;
 469
 470         if (unlikely(!abi16))
 471                 return -ENOMEM;
 472
 473         /* completely unnecessary for these chipsets... */
 474         if (unlikely(device->info.family >= NV_DEVICE_INFO_V0_FERMI))
 475                 return nouveau_abi16_put(abi16, -EINVAL);
 476         client = abi16->device.object.client;
 477
 478         chan = nouveau_abi16_chan(abi16, info->channel);
 479         if (!chan)
 480                 return nouveau_abi16_put(abi16, -ENOENT);
 481
 482         ntfy = kzalloc(sizeof(*ntfy), GFP_KERNEL);
 483         if (!ntfy)
 484                 return nouveau_abi16_put(abi16, -ENOMEM);
 485
 486         list_add(&ntfy->head, &chan->notifiers);
 487
 488         ret = nvkm_mm_head(&chan->heap, 0, 1, info->size, info->size, 1,
 489                            &ntfy->node);
 490         if (ret)
 491                 goto done;
 492
 493         args.start = ntfy->node->offset;
 494         args.limit = ntfy->node->offset + ntfy->node->length - 1;
 495         if (device->info.family >= NV_DEVICE_INFO_V0_TESLA) {
 496                 args.target = NV_DMA_V0_TARGET_VM;
 497                 args.access = NV_DMA_V0_ACCESS_VM;
 498                 args.start += chan->ntfy_vma.offset;
 499                 args.limit += chan->ntfy_vma.offset;
 500         } else
 501         if (drm->agp.bridge) {
 502                 args.target = NV_DMA_V0_TARGET_AGP;
 503                 args.access = NV_DMA_V0_ACCESS_RDWR;
 504                 args.start += drm->agp.base + chan->ntfy->bo.offset;
 505                 args.limit += drm->agp.base + chan->ntfy->bo.offset;
 506         } else {
 507                 args.target = NV_DMA_V0_TARGET_VM;
 508                 args.access = NV_DMA_V0_ACCESS_RDWR;
 509                 args.start += chan->ntfy->bo.offset;
 510                 args.limit += chan->ntfy->bo.offset;
 511         }
 512
 513         client->route = NVDRM_OBJECT_ABI16;
 514         client->super = true;
 515         ret = nvif_object_init(&chan->chan->user, info->handle,
 516                                NV_DMA_IN_MEMORY, &args, sizeof(args),
 517                                &ntfy->object);
 518         client->super = false;
 519         client->route = NVDRM_OBJECT_NVIF;
 520         if (ret)
 521                 goto done;
 522
 523         info->offset = ntfy->node->offset;
 524 done:
 525         if (ret)
 526                 nouveau_abi16_ntfy_fini(chan, ntfy);
 527         return nouveau_abi16_put(abi16, ret);
 528 }
 529
 530 int
 531 nouveau_abi16_ioctl_gpuobj_free(ABI16_IOCTL_ARGS)
 532 {
 533         struct drm_nouveau_gpuobj_free *fini = data;
 534         struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv, dev);
 535         struct nouveau_abi16_chan *chan;
 536         struct nouveau_abi16_ntfy *ntfy;
 537         int ret = -ENOENT;
 538
 539         if (unlikely(!abi16))
 540                 return -ENOMEM;
 541
 542         chan = nouveau_abi16_chan(abi16, fini->channel);
 543         if (!chan)
 544                 return nouveau_abi16_put(abi16, -EINVAL);
 545
 546         /* synchronize with the user channel and destroy the gpu object */
 547         nouveau_channel_idle(chan->chan);
 548
 549         list_for_each_entry(ntfy, &chan->notifiers, head) {
 550                 if (ntfy->object.handle == fini->handle) {
 551                         nouveau_abi16_ntfy_fini(chan, ntfy);
 552                         ret = 0;
 553                         break;
 554                 }
 555         }
 556
 557         return nouveau_abi16_put(abi16, ret);
 558 }