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.base, NULL,
  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 *)nvif_client(&abi16->device.base);
  73         mutex_unlock(&cli->mutex);
  74         return ret;
  75 }
  76
  77 u16
  78 nouveau_abi16_swclass(struct nouveau_drm *drm)
  79 {
  80         switch (drm->device.info.family) {
  81         case NV_DEVICE_INFO_V0_TNT:
  82                 return 0x006e;
  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 0x016e;
  88         case NV_DEVICE_INFO_V0_TESLA:
  89                 return 0x506e;
  90         case NV_DEVICE_INFO_V0_FERMI:
  91         case NV_DEVICE_INFO_V0_KEPLER:
  92         case NV_DEVICE_INFO_V0_MAXWELL:
  93                 return 0x906e;
  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         nvkm_mm_free(&chan->heap, &ntfy->node);
 104         list_del(&ntfy->head);
 105         kfree(ntfy);
 106 }
 107
 108 static void
 109 nouveau_abi16_chan_fini(struct nouveau_abi16 *abi16,
 110                         struct nouveau_abi16_chan *chan)
 111 {
 112         struct nouveau_abi16_ntfy *ntfy, *temp;
 113
 114         /* wait for all activity to stop before releasing notify object, which
 115          * may be still in use */
 116         if (chan->chan && chan->ntfy)
 117                 nouveau_channel_idle(chan->chan);
 118
 119         /* cleanup notifier state */
 120         list_for_each_entry_safe(ntfy, temp, &chan->notifiers, head) {
 121                 nouveau_abi16_ntfy_fini(chan, ntfy);
 122         }
 123
 124         if (chan->ntfy) {
 125                 nouveau_bo_vma_del(chan->ntfy, &chan->ntfy_vma);
 126                 nouveau_bo_unpin(chan->ntfy);
 127                 drm_gem_object_unreference_unlocked(&chan->ntfy->gem);
 128         }
 129
 130         if (chan->heap.block_size)
 131                 nvkm_mm_fini(&chan->heap);
 132
 133         /* destroy channel object, all children will be killed too */
 134         if (chan->chan) {
 135                 abi16->handles &= ~(1ULL << (chan->chan->object->handle & 0xffff));
 136                 nouveau_channel_del(&chan->chan);
 137         }
 138
 139         list_del(&chan->head);
 140         kfree(chan);
 141 }
 142
 143 void
 144 nouveau_abi16_fini(struct nouveau_abi16 *abi16)
 145 {
 146         struct nouveau_cli *cli = (void *)nvif_client(&abi16->device.base);
 147         struct nouveau_abi16_chan *chan, *temp;
 148
 149         /* cleanup channels */
 150         list_for_each_entry_safe(chan, temp, &abi16->channels, head) {
 151                 nouveau_abi16_chan_fini(abi16, chan);
 152         }
 153
 154         /* destroy the device object */
 155         nvif_device_fini(&abi16->device);
 156
 157         kfree(cli->abi16);
 158         cli->abi16 = NULL;
 159 }
 160
 161 int
 162 nouveau_abi16_ioctl_getparam(ABI16_IOCTL_ARGS)
 163 {
 164         struct nouveau_cli *cli = nouveau_cli(file_priv);
 165         struct nouveau_drm *drm = nouveau_drm(dev);
 166         struct nvif_device *device = &drm->device;
 167         struct nvkm_gr *gr = nvxx_gr(device);
 168         struct drm_nouveau_getparam *getparam = data;
 169
 170         switch (getparam->param) {
 171         case NOUVEAU_GETPARAM_CHIPSET_ID:
 172                 getparam->value = device->info.chipset;
 173                 break;
 174         case NOUVEAU_GETPARAM_PCI_VENDOR:
 175                 if (nv_device_is_pci(nvxx_device(device)))
 176                         getparam->value = dev->pdev->vendor;
 177                 else
 178                         getparam->value = 0;
 179                 break;
 180         case NOUVEAU_GETPARAM_PCI_DEVICE:
 181                 if (nv_device_is_pci(nvxx_device(device)))
 182                         getparam->value = dev->pdev->device;
 183                 else
 184                         getparam->value = 0;
 185                 break;
 186         case NOUVEAU_GETPARAM_BUS_TYPE:
 187                 if (!nv_device_is_pci(nvxx_device(device)))
 188                         getparam->value = 3;
 189                 else
 190                 if (drm_pci_device_is_agp(dev))
 191                         getparam->value = 0;
 192                 else
 193                 if (!pci_is_pcie(dev->pdev))
 194                         getparam->value = 1;
 195                 else
 196                         getparam->value = 2;
 197                 break;
 198         case NOUVEAU_GETPARAM_FB_SIZE:
 199                 getparam->value = drm->gem.vram_available;
 200                 break;
 201         case NOUVEAU_GETPARAM_AGP_SIZE:
 202                 getparam->value = drm->gem.gart_available;
 203                 break;
 204         case NOUVEAU_GETPARAM_VM_VRAM_BASE:
 205                 getparam->value = 0; /* deprecated */
 206                 break;
 207         case NOUVEAU_GETPARAM_PTIMER_TIME:
 208                 getparam->value = nvif_device_time(device);
 209                 break;
 210         case NOUVEAU_GETPARAM_HAS_BO_USAGE:
 211                 getparam->value = 1;
 212                 break;
 213         case NOUVEAU_GETPARAM_HAS_PAGEFLIP:
 214                 getparam->value = 1;
 215                 break;
 216         case NOUVEAU_GETPARAM_GRAPH_UNITS:
 217                 getparam->value = gr->units ? gr->units(gr) : 0;
 218                 break;
 219         default:
 220                 NV_PRINTK(debug, cli, "unknown parameter %lld\n", getparam->param);
 221                 return -EINVAL;
 222         }
 223
 224         return 0;
 225 }
 226
 227 int
 228 nouveau_abi16_ioctl_setparam(ABI16_IOCTL_ARGS)
 229 {
 230         return -EINVAL;
 231 }
 232
 233 int
 234 nouveau_abi16_ioctl_channel_alloc(ABI16_IOCTL_ARGS)
 235 {
 236         struct drm_nouveau_channel_alloc *init = data;
 237         struct nouveau_cli *cli = nouveau_cli(file_priv);
 238         struct nouveau_drm *drm = nouveau_drm(dev);
 239         struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv, dev);
 240         struct nouveau_abi16_chan *chan;
 241         struct nvif_device *device;
 242         int ret;
 243
 244         if (unlikely(!abi16))
 245                 return -ENOMEM;
 246
 247         if (!drm->channel)
 248                 return nouveau_abi16_put(abi16, -ENODEV);
 249
 250         device = &abi16->device;
 251
 252         /* hack to allow channel engine type specification on kepler */
 253         if (device->info.family >= NV_DEVICE_INFO_V0_KEPLER) {
 254                 if (init->fb_ctxdma_handle != ~0)
 255                         init->fb_ctxdma_handle = KEPLER_CHANNEL_GPFIFO_A_V0_ENGINE_GR;
 256                 else
 257                         init->fb_ctxdma_handle = init->tt_ctxdma_handle;
 258
 259                 /* allow flips to be executed if this is a graphics channel */
 260                 init->tt_ctxdma_handle = 0;
 261                 if (init->fb_ctxdma_handle == KEPLER_CHANNEL_GPFIFO_A_V0_ENGINE_GR)
 262                         init->tt_ctxdma_handle = 1;
 263         }
 264
 265         if (init->fb_ctxdma_handle == ~0 || init->tt_ctxdma_handle == ~0)
 266                 return nouveau_abi16_put(abi16, -EINVAL);
 267
 268         /* allocate "abi16 channel" data and make up a handle for it */
 269         init->channel = __ffs64(~abi16->handles);
 270         if (~abi16->handles == 0)
 271                 return nouveau_abi16_put(abi16, -ENOSPC);
 272
 273         chan = kzalloc(sizeof(*chan), GFP_KERNEL);
 274         if (!chan)
 275                 return nouveau_abi16_put(abi16, -ENOMEM);
 276
 277         INIT_LIST_HEAD(&chan->notifiers);
 278         list_add(&chan->head, &abi16->channels);
 279         abi16->handles |= (1ULL << init->channel);
 280
 281         /* create channel object and initialise dma and fence management */
 282         ret = nouveau_channel_new(drm, device,
 283                                   NOUVEAU_ABI16_CHAN(init->channel),
 284                                   init->fb_ctxdma_handle,
 285                                   init->tt_ctxdma_handle, &chan->chan);
 286         if (ret)
 287                 goto done;
 288
 289         if (device->info.family >= NV_DEVICE_INFO_V0_TESLA)
 290                 init->pushbuf_domains = NOUVEAU_GEM_DOMAIN_VRAM |
 291                                         NOUVEAU_GEM_DOMAIN_GART;
 292         else
 293         if (chan->chan->push.buffer->bo.mem.mem_type == TTM_PL_VRAM)
 294                 init->pushbuf_domains = NOUVEAU_GEM_DOMAIN_VRAM;
 295         else
 296                 init->pushbuf_domains = NOUVEAU_GEM_DOMAIN_GART;
 297
 298         if (device->info.family < NV_DEVICE_INFO_V0_CELSIUS) {
 299                 init->subchan[0].handle = 0x00000000;
 300                 init->subchan[0].grclass = 0x0000;
 301                 init->subchan[1].handle = chan->chan->nvsw.handle;
 302                 init->subchan[1].grclass = 0x506e;
 303                 init->nr_subchan = 2;
 304         }
 305
 306         /* Named memory object area */
 307         ret = nouveau_gem_new(dev, PAGE_SIZE, 0, NOUVEAU_GEM_DOMAIN_GART,
 308                               0, 0, &chan->ntfy);
 309         if (ret == 0)
 310                 ret = nouveau_bo_pin(chan->ntfy, TTM_PL_FLAG_TT, false);
 311         if (ret)
 312                 goto done;
 313
 314         if (device->info.family >= NV_DEVICE_INFO_V0_TESLA) {
 315                 ret = nouveau_bo_vma_add(chan->ntfy, cli->vm,
 316                                         &chan->ntfy_vma);
 317                 if (ret)
 318                         goto done;
 319         }
 320
 321         ret = drm_gem_handle_create(file_priv, &chan->ntfy->gem,
 322                                     &init->notifier_handle);
 323         if (ret)
 324                 goto done;
 325
 326         ret = nvkm_mm_init(&chan->heap, 0, PAGE_SIZE, 1);
 327 done:
 328         if (ret)
 329                 nouveau_abi16_chan_fini(abi16, chan);
 330         return nouveau_abi16_put(abi16, ret);
 331 }
 332
 333 static struct nouveau_abi16_chan *
 334 nouveau_abi16_chan(struct nouveau_abi16 *abi16, int channel)
 335 {
 336         struct nouveau_abi16_chan *chan;
 337
 338         list_for_each_entry(chan, &abi16->channels, head) {
 339                 if (chan->chan->object->handle == NOUVEAU_ABI16_CHAN(channel))
 340                         return chan;
 341         }
 342
 343         return NULL;
 344 }
 345
 346 int
 347 nouveau_abi16_ioctl_channel_free(ABI16_IOCTL_ARGS)
 348 {
 349         struct drm_nouveau_channel_free *req = data;
 350         struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv, dev);
 351         struct nouveau_abi16_chan *chan;
 352
 353         if (unlikely(!abi16))
 354                 return -ENOMEM;
 355
 356         chan = nouveau_abi16_chan(abi16, req->channel);
 357         if (!chan)
 358                 return nouveau_abi16_put(abi16, -ENOENT);
 359         nouveau_abi16_chan_fini(abi16, chan);
 360         return nouveau_abi16_put(abi16, 0);
 361 }
 362
 363 int
 364 nouveau_abi16_ioctl_grobj_alloc(ABI16_IOCTL_ARGS)
 365 {
 366         struct drm_nouveau_grobj_alloc *init = data;
 367         struct {
 368                 struct nvif_ioctl_v0 ioctl;
 369                 struct nvif_ioctl_new_v0 new;
 370         } args = {
 371                 .ioctl.owner = NVIF_IOCTL_V0_OWNER_ANY,
 372                 .ioctl.type = NVIF_IOCTL_V0_NEW,
 373                 .ioctl.path_nr = 3,
 374                 .ioctl.path[2] = NOUVEAU_ABI16_CLIENT,
 375                 .ioctl.path[1] = NOUVEAU_ABI16_DEVICE,
 376                 .ioctl.path[0] = NOUVEAU_ABI16_CHAN(init->channel),
 377                 .new.route = NVDRM_OBJECT_ABI16,
 378                 .new.handle = init->handle,
 379                 .new.oclass = init->class,
 380         };
 381         struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv, dev);
 382         struct nouveau_drm *drm = nouveau_drm(dev);
 383         struct nvif_client *client;
 384         int ret;
 385
 386         if (unlikely(!abi16))
 387                 return -ENOMEM;
 388
 389         if (init->handle == ~0)
 390                 return nouveau_abi16_put(abi16, -EINVAL);
 391         client = nvif_client(nvif_object(&abi16->device));
 392
 393         /* compatibility with userspace that assumes 506e for all chipsets */
 394         if (init->class == 0x506e) {
 395                 init->class = nouveau_abi16_swclass(drm);
 396                 if (init->class == 0x906e)
 397                         return nouveau_abi16_put(abi16, 0);
 398         }
 399
 400         ret = nvif_client_ioctl(client, &args, sizeof(args));
 401         return nouveau_abi16_put(abi16, ret);
 402 }
 403
 404 int
 405 nouveau_abi16_ioctl_notifierobj_alloc(ABI16_IOCTL_ARGS)
 406 {
 407         struct drm_nouveau_notifierobj_alloc *info = data;
 408         struct {
 409                 struct nvif_ioctl_v0 ioctl;
 410                 struct nvif_ioctl_new_v0 new;
 411                 struct nv_dma_v0 ctxdma;
 412         } args = {
 413                 .ioctl.owner = NVIF_IOCTL_V0_OWNER_ANY,
 414                 .ioctl.type = NVIF_IOCTL_V0_NEW,
 415                 .ioctl.path_nr = 3,
 416                 .ioctl.path[2] = NOUVEAU_ABI16_CLIENT,
 417                 .ioctl.path[1] = NOUVEAU_ABI16_DEVICE,
 418                 .ioctl.path[0] = NOUVEAU_ABI16_CHAN(info->channel),
 419                 .new.route = NVDRM_OBJECT_ABI16,
 420                 .new.handle = info->handle,
 421                 .new.oclass = NV_DMA_IN_MEMORY,
 422         };
 423         struct nouveau_drm *drm = nouveau_drm(dev);
 424         struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv, dev);
 425         struct nouveau_abi16_chan *chan;
 426         struct nouveau_abi16_ntfy *ntfy;
 427         struct nvif_device *device = &abi16->device;
 428         struct nvif_client *client;
 429         int ret;
 430
 431         if (unlikely(!abi16))
 432                 return -ENOMEM;
 433
 434         /* completely unnecessary for these chipsets... */
 435         if (unlikely(device->info.family >= NV_DEVICE_INFO_V0_FERMI))
 436                 return nouveau_abi16_put(abi16, -EINVAL);
 437         client = nvif_client(nvif_object(&abi16->device));
 438
 439         chan = nouveau_abi16_chan(abi16, info->channel);
 440         if (!chan)
 441                 return nouveau_abi16_put(abi16, -ENOENT);
 442
 443         ntfy = kzalloc(sizeof(*ntfy), GFP_KERNEL);
 444         if (!ntfy)
 445                 return nouveau_abi16_put(abi16, -ENOMEM);
 446
 447         list_add(&ntfy->head, &chan->notifiers);
 448         ntfy->handle = info->handle;
 449
 450         ret = nvkm_mm_head(&chan->heap, 0, 1, info->size, info->size, 1,
 451                            &ntfy->node);
 452         if (ret)
 453                 goto done;
 454
 455         args.ctxdma.start = ntfy->node->offset;
 456         args.ctxdma.limit = ntfy->node->offset + ntfy->node->length - 1;
 457         if (device->info.family >= NV_DEVICE_INFO_V0_TESLA) {
 458                 args.ctxdma.target = NV_DMA_V0_TARGET_VM;
 459                 args.ctxdma.access = NV_DMA_V0_ACCESS_VM;
 460                 args.ctxdma.start += chan->ntfy_vma.offset;
 461                 args.ctxdma.limit += chan->ntfy_vma.offset;
 462         } else
 463         if (drm->agp.stat == ENABLED) {
 464                 args.ctxdma.target = NV_DMA_V0_TARGET_AGP;
 465                 args.ctxdma.access = NV_DMA_V0_ACCESS_RDWR;
 466                 args.ctxdma.start += drm->agp.base + chan->ntfy->bo.offset;
 467                 args.ctxdma.limit += drm->agp.base + chan->ntfy->bo.offset;
 468                 client->super = true;
 469         } else {
 470                 args.ctxdma.target = NV_DMA_V0_TARGET_VM;
 471                 args.ctxdma.access = NV_DMA_V0_ACCESS_RDWR;
 472                 args.ctxdma.start += chan->ntfy->bo.offset;
 473                 args.ctxdma.limit += chan->ntfy->bo.offset;
 474         }
 475
 476         ret = nvif_client_ioctl(client, &args, sizeof(args));
 477         client->super = false;
 478         if (ret)
 479                 goto done;
 480
 481         info->offset = ntfy->node->offset;
 482
 483 done:
 484         if (ret)
 485                 nouveau_abi16_ntfy_fini(chan, ntfy);
 486         return nouveau_abi16_put(abi16, ret);
 487 }
 488
 489 int
 490 nouveau_abi16_ioctl_gpuobj_free(ABI16_IOCTL_ARGS)
 491 {
 492         struct drm_nouveau_gpuobj_free *fini = data;
 493         struct {
 494                 struct nvif_ioctl_v0 ioctl;
 495                 struct nvif_ioctl_del del;
 496         } args = {
 497                 .ioctl.owner = NVDRM_OBJECT_ABI16,
 498                 .ioctl.type = NVIF_IOCTL_V0_DEL,
 499                 .ioctl.path_nr = 4,
 500                 .ioctl.path[3] = NOUVEAU_ABI16_CLIENT,
 501                 .ioctl.path[2] = NOUVEAU_ABI16_DEVICE,
 502                 .ioctl.path[1] = NOUVEAU_ABI16_CHAN(fini->channel),
 503                 .ioctl.path[0] = fini->handle,
 504         };
 505         struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv, dev);
 506         struct nouveau_abi16_chan *chan;
 507         struct nouveau_abi16_ntfy *ntfy;
 508         struct nvif_client *client;
 509         int ret;
 510
 511         if (unlikely(!abi16))
 512                 return -ENOMEM;
 513
 514         chan = nouveau_abi16_chan(abi16, fini->channel);
 515         if (!chan)
 516                 return nouveau_abi16_put(abi16, -ENOENT);
 517         client = nvif_client(nvif_object(&abi16->device));
 518
 519         /* synchronize with the user channel and destroy the gpu object */
 520         nouveau_channel_idle(chan->chan);
 521
 522         ret = nvif_client_ioctl(client, &args, sizeof(args));
 523         if (ret)
 524                 return nouveau_abi16_put(abi16, ret);
 525
 526         /* cleanup extra state if this object was a notifier */
 527         list_for_each_entry(ntfy, &chan->notifiers, head) {
 528                 if (ntfy->handle == fini->handle) {
 529                         nvkm_mm_free(&chan->heap, &ntfy->node);
 530                         list_del(&ntfy->head);
 531                         break;
 532                 }
 533         }
 534
 535         return nouveau_abi16_put(abi16, 0);
 536 }