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 <core/object.h>
  25 #include <core/client.h>
  26 #include <core/device.h>
  27 #include <core/class.h>
  28 #include <core/mm.h>
  29
  30 #include "nouveau_drm.h"
  31 #include "nouveau_dma.h"
  32 #include "nouveau_gem.h"
  33 #include "nouveau_chan.h"
  34 #include "nouveau_abi16.h"
  35
  36 struct nouveau_abi16 *
  37 nouveau_abi16_get(struct drm_file *file_priv, struct drm_device *dev)
  38 {
  39         struct nouveau_cli *cli = nouveau_cli(file_priv);
  40         mutex_lock(&cli->mutex);
  41         if (!cli->abi16) {
  42                 struct nouveau_abi16 *abi16;
  43                 cli->abi16 = abi16 = kzalloc(sizeof(*abi16), GFP_KERNEL);
  44                 if (cli->abi16) {
  45                         INIT_LIST_HEAD(&abi16->channels);
  46
  47                         /* allocate device object targeting client's default
  48                          * device (ie. the one that belongs to the fd it
  49                          * opened)
  50                          */
  51                         if (nvif_device_init(&cli->base.base, NULL,
  52                                              NVDRM_DEVICE, NV_DEVICE_CLASS,
  53                                              &(struct nv_device_class) {
  54                                                 .device = ~0ULL,
  55                                              }, sizeof(struct nv_device_class),
  56                                              &abi16->device) == 0)
  57                                 return cli->abi16;
  58
  59                         kfree(cli->abi16);
  60                         cli->abi16 = NULL;
  61                 }
  62
  63                 mutex_unlock(&cli->mutex);
  64         }
  65         return cli->abi16;
  66 }
  67
  68 int
  69 nouveau_abi16_put(struct nouveau_abi16 *abi16, int ret)
  70 {
  71         struct nouveau_cli *cli = (void *)nvif_client(&abi16->device.base);
  72         mutex_unlock(&cli->mutex);
  73         return ret;
  74 }
  75
  76 u16
  77 nouveau_abi16_swclass(struct nouveau_drm *drm)
  78 {
  79         switch (drm->device.info.family) {
  80         case NV_DEVICE_INFO_V0_TNT:
  81                 return 0x006e;
  82         case NV_DEVICE_INFO_V0_CELSIUS:
  83         case NV_DEVICE_INFO_V0_KELVIN:
  84         case NV_DEVICE_INFO_V0_RANKINE:
  85         case NV_DEVICE_INFO_V0_CURIE:
  86                 return 0x016e;
  87         case NV_DEVICE_INFO_V0_TESLA:
  88                 return 0x506e;
  89         case NV_DEVICE_INFO_V0_FERMI:
  90         case NV_DEVICE_INFO_V0_KEPLER:
  91         case NV_DEVICE_INFO_V0_MAXWELL:
  92                 return 0x906e;
  93         }
  94
  95         return 0x0000;
  96 }
  97
  98 static void
  99 nouveau_abi16_ntfy_fini(struct nouveau_abi16_chan *chan,
 100                         struct nouveau_abi16_ntfy *ntfy)
 101 {
 102         nouveau_mm_free(&chan->heap, &ntfy->node);
 103         list_del(&ntfy->head);
 104         kfree(ntfy);
 105 }
 106
 107 static void
 108 nouveau_abi16_chan_fini(struct nouveau_abi16 *abi16,
 109                         struct nouveau_abi16_chan *chan)
 110 {
 111         struct nouveau_abi16_ntfy *ntfy, *temp;
 112
 113         /* wait for all activity to stop before releasing notify object, which
 114          * may be still in use */
 115         if (chan->chan && chan->ntfy)
 116                 nouveau_channel_idle(chan->chan);
 117
 118         /* cleanup notifier state */
 119         list_for_each_entry_safe(ntfy, temp, &chan->notifiers, head) {
 120                 nouveau_abi16_ntfy_fini(chan, ntfy);
 121         }
 122
 123         if (chan->ntfy) {
 124                 nouveau_bo_vma_del(chan->ntfy, &chan->ntfy_vma);
 125                 nouveau_bo_unpin(chan->ntfy);
 126                 drm_gem_object_unreference_unlocked(&chan->ntfy->gem);
 127         }
 128
 129         if (chan->heap.block_size)
 130                 nouveau_mm_fini(&chan->heap);
 131
 132         /* destroy channel object, all children will be killed too */
 133         if (chan->chan) {
 134                 abi16->handles &= ~(1ULL << (chan->chan->object->handle & 0xffff));
 135                 nouveau_channel_del(&chan->chan);
 136         }
 137
 138         list_del(&chan->head);
 139         kfree(chan);
 140 }
 141
 142 void
 143 nouveau_abi16_fini(struct nouveau_abi16 *abi16)
 144 {
 145         struct nouveau_cli *cli = (void *)nvif_client(&abi16->device.base);
 146         struct nouveau_abi16_chan *chan, *temp;
 147
 148         /* cleanup channels */
 149         list_for_each_entry_safe(chan, temp, &abi16->channels, head) {
 150                 nouveau_abi16_chan_fini(abi16, chan);
 151         }
 152
 153         /* destroy the device object */
 154         nvif_device_fini(&abi16->device);
 155
 156         kfree(cli->abi16);
 157         cli->abi16 = NULL;
 158 }
 159
 160 int
 161 nouveau_abi16_ioctl_getparam(ABI16_IOCTL_ARGS)
 162 {
 163         struct nouveau_cli *cli = nouveau_cli(file_priv);
 164         struct nouveau_drm *drm = nouveau_drm(dev);
 165         struct nvif_device *device = &drm->device;
 166         struct nouveau_timer *ptimer = nvkm_timer(device);
 167         struct nouveau_graph *graph = nvkm_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(nvkm_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(nvkm_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(nvkm_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 = ptimer->read(ptimer);
 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 = graph->units ? graph->units(graph) : 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         struct nouveau_instmem *imem;
 243         struct nouveau_fb *pfb;
 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         imem   = nvkm_instmem(device);
 254         pfb    = nvkm_fb(device);
 255
 256         /* hack to allow channel engine type specification on kepler */
 257         if (device->info.family >= NV_DEVICE_INFO_V0_KEPLER) {
 258                 if (init->fb_ctxdma_handle != ~0)
 259                         init->fb_ctxdma_handle = NVE0_CHANNEL_IND_ENGINE_GR;
 260                 else
 261                         init->fb_ctxdma_handle = init->tt_ctxdma_handle;
 262
 263                 /* allow flips to be executed if this is a graphics channel */
 264                 init->tt_ctxdma_handle = 0;
 265                 if (init->fb_ctxdma_handle == NVE0_CHANNEL_IND_ENGINE_GR)
 266                         init->tt_ctxdma_handle = 1;
 267         }
 268
 269         if (init->fb_ctxdma_handle == ~0 || init->tt_ctxdma_handle == ~0)
 270                 return nouveau_abi16_put(abi16, -EINVAL);
 271
 272         /* allocate "abi16 channel" data and make up a handle for it */
 273         init->channel = __ffs64(~abi16->handles);
 274         if (~abi16->handles == 0)
 275                 return nouveau_abi16_put(abi16, -ENOSPC);
 276
 277         chan = kzalloc(sizeof(*chan), GFP_KERNEL);
 278         if (!chan)
 279                 return nouveau_abi16_put(abi16, -ENOMEM);
 280
 281         INIT_LIST_HEAD(&chan->notifiers);
 282         list_add(&chan->head, &abi16->channels);
 283         abi16->handles |= (1ULL << init->channel);
 284
 285         /* create channel object and initialise dma and fence management */
 286         ret = nouveau_channel_new(drm, device, NVDRM_CHAN | init->channel,
 287                                   init->fb_ctxdma_handle,
 288                                   init->tt_ctxdma_handle, &chan->chan);
 289         if (ret)
 290                 goto done;
 291
 292         if (device->info.family >= NV_DEVICE_INFO_V0_TESLA)
 293                 init->pushbuf_domains = NOUVEAU_GEM_DOMAIN_VRAM |
 294                                         NOUVEAU_GEM_DOMAIN_GART;
 295         else
 296         if (chan->chan->push.buffer->bo.mem.mem_type == TTM_PL_VRAM)
 297                 init->pushbuf_domains = NOUVEAU_GEM_DOMAIN_VRAM;
 298         else
 299                 init->pushbuf_domains = NOUVEAU_GEM_DOMAIN_GART;
 300
 301         if (device->info.family < NV_DEVICE_INFO_V0_CELSIUS) {
 302                 init->subchan[0].handle = 0x00000000;
 303                 init->subchan[0].grclass = 0x0000;
 304                 init->subchan[1].handle = NvSw;
 305                 init->subchan[1].grclass = 0x506e;
 306                 init->nr_subchan = 2;
 307         }
 308
 309         /* Named memory object area */
 310         ret = nouveau_gem_new(dev, PAGE_SIZE, 0, NOUVEAU_GEM_DOMAIN_GART,
 311                               0, 0, &chan->ntfy);
 312         if (ret == 0)
 313                 ret = nouveau_bo_pin(chan->ntfy, TTM_PL_FLAG_TT);
 314         if (ret)
 315                 goto done;
 316
 317         if (device->info.family >= NV_DEVICE_INFO_V0_TESLA) {
 318                 ret = nouveau_bo_vma_add(chan->ntfy, cli->vm,
 319                                         &chan->ntfy_vma);
 320                 if (ret)
 321                         goto done;
 322         }
 323
 324         ret = drm_gem_handle_create(file_priv, &chan->ntfy->gem,
 325                                     &init->notifier_handle);
 326         if (ret)
 327                 goto done;
 328
 329         ret = nouveau_mm_init(&chan->heap, 0, PAGE_SIZE, 1);
 330 done:
 331         if (ret)
 332                 nouveau_abi16_chan_fini(abi16, chan);
 333         return nouveau_abi16_put(abi16, ret);
 334 }
 335
 336
 337 int
 338 nouveau_abi16_ioctl_channel_free(ABI16_IOCTL_ARGS)
 339 {
 340         struct drm_nouveau_channel_free *req = data;
 341         struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv, dev);
 342         struct nouveau_abi16_chan *chan;
 343         int ret = -ENOENT;
 344
 345         if (unlikely(!abi16))
 346                 return -ENOMEM;
 347
 348         list_for_each_entry(chan, &abi16->channels, head) {
 349                 if (chan->chan->object->handle == (NVDRM_CHAN | req->channel)) {
 350                         nouveau_abi16_chan_fini(abi16, chan);
 351                         return nouveau_abi16_put(abi16, 0);
 352                 }
 353         }
 354
 355         return nouveau_abi16_put(abi16, ret);
 356 }
 357
 358 int
 359 nouveau_abi16_ioctl_grobj_alloc(ABI16_IOCTL_ARGS)
 360 {
 361         struct drm_nouveau_grobj_alloc *init = data;
 362         struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv, dev);
 363         struct nouveau_drm *drm = nouveau_drm(dev);
 364         struct nouveau_object *object;
 365         int ret;
 366
 367         if (unlikely(!abi16))
 368                 return -ENOMEM;
 369
 370         if (init->handle == ~0)
 371                 return nouveau_abi16_put(abi16, -EINVAL);
 372
 373         /* compatibility with userspace that assumes 506e for all chipsets */
 374         if (init->class == 0x506e) {
 375                 init->class = nouveau_abi16_swclass(drm);
 376                 if (init->class == 0x906e)
 377                         return nouveau_abi16_put(abi16, 0);
 378         }
 379
 380         /*XXX*/
 381         ret = nouveau_object_new(nv_object(nvkm_client(&abi16->device.base)),
 382                                  NVDRM_CHAN | init->channel, init->handle,
 383                                  init->class, NULL, 0, &object);
 384         return nouveau_abi16_put(abi16, ret);
 385 }
 386
 387 int
 388 nouveau_abi16_ioctl_notifierobj_alloc(ABI16_IOCTL_ARGS)
 389 {
 390         struct drm_nouveau_notifierobj_alloc *info = data;
 391         struct nouveau_drm *drm = nouveau_drm(dev);
 392         struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv, dev);
 393         struct nouveau_abi16_chan *chan = NULL, *temp;
 394         struct nouveau_abi16_ntfy *ntfy;
 395         struct nvif_device *device = &abi16->device;
 396         struct nouveau_object *object;
 397         struct nv_dma_class args = {};
 398         int ret;
 399
 400         if (unlikely(!abi16))
 401                 return -ENOMEM;
 402
 403         /* completely unnecessary for these chipsets... */
 404         if (unlikely(device->info.family >= NV_DEVICE_INFO_V0_FERMI))
 405                 return nouveau_abi16_put(abi16, -EINVAL);
 406
 407         list_for_each_entry(temp, &abi16->channels, head) {
 408                 if (temp->chan->object->handle == (NVDRM_CHAN | info->channel)) {
 409                         chan = temp;
 410                         break;
 411                 }
 412         }
 413
 414         if (!chan)
 415                 return nouveau_abi16_put(abi16, -ENOENT);
 416
 417         ntfy = kzalloc(sizeof(*ntfy), GFP_KERNEL);
 418         if (!ntfy)
 419                 return nouveau_abi16_put(abi16, -ENOMEM);
 420
 421         list_add(&ntfy->head, &chan->notifiers);
 422         ntfy->handle = info->handle;
 423
 424         ret = nouveau_mm_head(&chan->heap, 1, info->size, info->size, 1,
 425                               &ntfy->node);
 426         if (ret)
 427                 goto done;
 428
 429         args.start = ntfy->node->offset;
 430         args.limit = ntfy->node->offset + ntfy->node->length - 1;
 431         if (device->info.family >= NV_DEVICE_INFO_V0_TESLA) {
 432                 args.flags  = NV_DMA_TARGET_VM | NV_DMA_ACCESS_VM;
 433                 args.start += chan->ntfy_vma.offset;
 434                 args.limit += chan->ntfy_vma.offset;
 435         } else
 436         if (drm->agp.stat == ENABLED) {
 437                 args.flags  = NV_DMA_TARGET_AGP | NV_DMA_ACCESS_RDWR;
 438                 args.start += drm->agp.base + chan->ntfy->bo.offset;
 439                 args.limit += drm->agp.base + chan->ntfy->bo.offset;
 440         } else {
 441                 args.flags  = NV_DMA_TARGET_VM | NV_DMA_ACCESS_RDWR;
 442                 args.start += chan->ntfy->bo.offset;
 443                 args.limit += chan->ntfy->bo.offset;
 444         }
 445
 446         /*XXX*/
 447         ret = nouveau_object_new(nv_object(nvkm_client(&abi16->device.base)),
 448                                  NVDRM_CHAN | info->channel, ntfy->handle,
 449                                  NV_DMA_IN_MEMORY_CLASS, &args, sizeof(args),
 450                                 &object);
 451         if (ret)
 452                 goto done;
 453
 454         info->offset = ntfy->node->offset;
 455
 456 done:
 457         if (ret)
 458                 nouveau_abi16_ntfy_fini(chan, ntfy);
 459         return nouveau_abi16_put(abi16, ret);
 460 }
 461
 462 int
 463 nouveau_abi16_ioctl_gpuobj_free(ABI16_IOCTL_ARGS)
 464 {
 465         struct drm_nouveau_gpuobj_free *fini = data;
 466         struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv, dev);
 467         struct nouveau_abi16_chan *chan = NULL, *temp;
 468         struct nouveau_abi16_ntfy *ntfy;
 469         int ret;
 470
 471         if (unlikely(!abi16))
 472                 return -ENOMEM;
 473
 474         list_for_each_entry(temp, &abi16->channels, head) {
 475                 if (temp->chan->object->handle == (NVDRM_CHAN | fini->channel)) {
 476                         chan = temp;
 477                         break;
 478                 }
 479         }
 480
 481         if (!chan)
 482                 return nouveau_abi16_put(abi16, -ENOENT);
 483
 484         /* synchronize with the user channel and destroy the gpu object */
 485         nouveau_channel_idle(chan->chan);
 486
 487         /*XXX*/
 488         ret = nouveau_object_del(nv_object(nvkm_client(&abi16->device.base)),
 489                                  chan->chan->object->handle, fini->handle);
 490         if (ret)
 491                 return nouveau_abi16_put(abi16, ret);
 492
 493         /* cleanup extra state if this object was a notifier */
 494         list_for_each_entry(ntfy, &chan->notifiers, head) {
 495                 if (ntfy->handle == fini->handle) {
 496                         nouveau_mm_free(&chan->heap, &ntfy->node);
 497                         list_del(&ntfy->head);
 498                         break;
 499                 }
 500         }
 501
 502         return nouveau_abi16_put(abi16, 0);
 503 }