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 <subdev/fb.h>
  31 #include <subdev/timer.h>
  32 #include <subdev/instmem.h>
  33
  34 #include "nouveau_drm.h"
  35 #include "nouveau_dma.h"
  36 #include "nouveau_gem.h"
  37 #include "nouveau_chan.h"
  38 #include "nouveau_abi16.h"
  39
  40 struct nouveau_abi16 *
  41 nouveau_abi16_get(struct drm_file *file_priv, struct drm_device *dev)
  42 {
  43         struct nouveau_cli *cli = nouveau_cli(file_priv);
  44         mutex_lock(&cli->mutex);
  45         if (!cli->abi16) {
  46                 struct nouveau_abi16 *abi16;
  47                 cli->abi16 = abi16 = kzalloc(sizeof(*abi16), GFP_KERNEL);
  48                 if (cli->abi16) {
  49                         INIT_LIST_HEAD(&abi16->channels);
  50                         abi16->client = nv_object(cli);
  51
  52                         /* allocate device object targeting client's default
  53                          * device (ie. the one that belongs to the fd it
  54                          * opened)
  55                          */
  56                         if (nouveau_object_new(abi16->client, NVDRM_CLIENT,
  57                                                NVDRM_DEVICE, 0x0080,
  58                                                &(struct nv_device_class) {
  59                                                 .device = ~0ULL,
  60                                                },
  61                                                sizeof(struct nv_device_class),
  62                                                &abi16->device) == 0)
  63                                 return cli->abi16;
  64
  65                         kfree(cli->abi16);
  66                         cli->abi16 = NULL;
  67                 }
  68
  69                 mutex_unlock(&cli->mutex);
  70         }
  71         return cli->abi16;
  72 }
  73
  74 int
  75 nouveau_abi16_put(struct nouveau_abi16 *abi16, int ret)
  76 {
  77         struct nouveau_cli *cli = (void *)abi16->client;
  78         mutex_unlock(&cli->mutex);
  79         return ret;
  80 }
  81
  82 u16
  83 nouveau_abi16_swclass(struct nouveau_drm *drm)
  84 {
  85         switch (nv_device(drm->device)->card_type) {
  86         case NV_04:
  87                 return 0x006e;
  88         case NV_10:
  89         case NV_20:
  90         case NV_30:
  91         case NV_40:
  92                 return 0x016e;
  93         case NV_50:
  94                 return 0x506e;
  95         case NV_C0:
  96         case NV_D0:
  97         case NV_E0:
  98                 return 0x906e;
  99         }
 100
 101         return 0x0000;
 102 }
 103
 104 static void
 105 nouveau_abi16_ntfy_fini(struct nouveau_abi16_chan *chan,
 106                         struct nouveau_abi16_ntfy *ntfy)
 107 {
 108         nouveau_mm_free(&chan->heap, &ntfy->node);
 109         list_del(&ntfy->head);
 110         kfree(ntfy);
 111 }
 112
 113 static void
 114 nouveau_abi16_chan_fini(struct nouveau_abi16 *abi16,
 115                         struct nouveau_abi16_chan *chan)
 116 {
 117         struct nouveau_abi16_ntfy *ntfy, *temp;
 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                 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 &= ~(1 << (chan->chan->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 *)abi16->client;
 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         nouveau_object_del(abi16->client, NVDRM_CLIENT, NVDRM_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_drm *drm = nouveau_drm(dev);
 164         struct nouveau_device *device = nv_device(drm->device);
 165         struct nouveau_timer *ptimer = nouveau_timer(device);
 166         struct drm_nouveau_getparam *getparam = data;
 167
 168         switch (getparam->param) {
 169         case NOUVEAU_GETPARAM_CHIPSET_ID:
 170                 getparam->value = device->chipset;
 171                 break;
 172         case NOUVEAU_GETPARAM_PCI_VENDOR:
 173                 getparam->value = dev->pci_vendor;
 174                 break;
 175         case NOUVEAU_GETPARAM_PCI_DEVICE:
 176                 getparam->value = dev->pci_device;
 177                 break;
 178         case NOUVEAU_GETPARAM_BUS_TYPE:
 179                 if (drm_pci_device_is_agp(dev))
 180                         getparam->value = 0;
 181                 else
 182                 if (!pci_is_pcie(dev->pdev))
 183                         getparam->value = 1;
 184                 else
 185                         getparam->value = 2;
 186                 break;
 187         case NOUVEAU_GETPARAM_FB_SIZE:
 188                 getparam->value = drm->gem.vram_available;
 189                 break;
 190         case NOUVEAU_GETPARAM_AGP_SIZE:
 191                 getparam->value = drm->gem.gart_available;
 192                 break;
 193         case NOUVEAU_GETPARAM_VM_VRAM_BASE:
 194                 getparam->value = 0; /* deprecated */
 195                 break;
 196         case NOUVEAU_GETPARAM_PTIMER_TIME:
 197                 getparam->value = ptimer->read(ptimer);
 198                 break;
 199         case NOUVEAU_GETPARAM_HAS_BO_USAGE:
 200                 getparam->value = 1;
 201                 break;
 202         case NOUVEAU_GETPARAM_HAS_PAGEFLIP:
 203                 getparam->value = 1;
 204                 break;
 205         case NOUVEAU_GETPARAM_GRAPH_UNITS:
 206                 /* NV40 and NV50 versions are quite different, but register
 207                  * address is the same. User is supposed to know the card
 208                  * family anyway... */
 209                 if (device->chipset >= 0x40) {
 210                         getparam->value = nv_rd32(device, 0x001540);
 211                         break;
 212                 }
 213                 /* FALLTHRU */
 214         default:
 215                 nv_debug(device, "unknown parameter %lld\n", getparam->param);
 216                 return -EINVAL;
 217         }
 218
 219         return 0;
 220 }
 221
 222 int
 223 nouveau_abi16_ioctl_setparam(ABI16_IOCTL_ARGS)
 224 {
 225         return -EINVAL;
 226 }
 227
 228 int
 229 nouveau_abi16_ioctl_channel_alloc(ABI16_IOCTL_ARGS)
 230 {
 231         struct drm_nouveau_channel_alloc *init = data;
 232         struct nouveau_cli *cli = nouveau_cli(file_priv);
 233         struct nouveau_drm *drm = nouveau_drm(dev);
 234         struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv, dev);
 235         struct nouveau_abi16_chan *chan;
 236         struct nouveau_client *client;
 237         struct nouveau_device *device;
 238         struct nouveau_instmem *imem;
 239         struct nouveau_fb *pfb;
 240         int ret;
 241
 242         if (unlikely(!abi16))
 243                 return -ENOMEM;
 244         client = nv_client(abi16->client);
 245
 246         if (init->fb_ctxdma_handle == ~0 || init->tt_ctxdma_handle == ~0)
 247                 return nouveau_abi16_put(abi16, -EINVAL);
 248
 249         device = nv_device(abi16->device);
 250         imem   = nouveau_instmem(device);
 251         pfb    = nouveau_fb(device);
 252
 253         /* allocate "abi16 channel" data and make up a handle for it */
 254         init->channel = ffsll(~abi16->handles);
 255         if (!init->channel--)
 256                 return nouveau_abi16_put(abi16, -ENOSPC);
 257
 258         chan = kzalloc(sizeof(*chan), GFP_KERNEL);
 259         if (!chan)
 260                 return nouveau_abi16_put(abi16, -ENOMEM);
 261
 262         INIT_LIST_HEAD(&chan->notifiers);
 263         list_add(&chan->head, &abi16->channels);
 264         abi16->handles |= (1 << init->channel);
 265
 266         /* create channel object and initialise dma and fence management */
 267         ret = nouveau_channel_new(drm, cli, NVDRM_DEVICE, NVDRM_CHAN |
 268                                   init->channel, init->fb_ctxdma_handle,
 269                                   init->tt_ctxdma_handle, &chan->chan);
 270         if (ret)
 271                 goto done;
 272
 273         if (device->card_type >= NV_50)
 274                 init->pushbuf_domains = NOUVEAU_GEM_DOMAIN_VRAM |
 275                                         NOUVEAU_GEM_DOMAIN_GART;
 276         else
 277         if (chan->chan->push.buffer->bo.mem.mem_type == TTM_PL_VRAM)
 278                 init->pushbuf_domains = NOUVEAU_GEM_DOMAIN_VRAM;
 279         else
 280                 init->pushbuf_domains = NOUVEAU_GEM_DOMAIN_GART;
 281
 282         if (device->card_type < NV_C0) {
 283                 init->subchan[0].handle = 0x00000000;
 284                 init->subchan[0].grclass = 0x0000;
 285                 init->subchan[1].handle = NvSw;
 286                 init->subchan[1].grclass = 0x506e;
 287                 init->nr_subchan = 2;
 288         }
 289
 290         /* Named memory object area */
 291         ret = nouveau_gem_new(dev, PAGE_SIZE, 0, NOUVEAU_GEM_DOMAIN_GART,
 292                               0, 0, &chan->ntfy);
 293         if (ret == 0)
 294                 ret = nouveau_bo_pin(chan->ntfy, TTM_PL_FLAG_TT);
 295         if (ret)
 296                 goto done;
 297
 298         if (device->card_type >= NV_50) {
 299                 ret = nouveau_bo_vma_add(chan->ntfy, client->vm,
 300                                         &chan->ntfy_vma);
 301                 if (ret)
 302                         goto done;
 303         }
 304
 305         ret = drm_gem_handle_create(file_priv, chan->ntfy->gem,
 306                                     &init->notifier_handle);
 307         if (ret)
 308                 goto done;
 309
 310         ret = nouveau_mm_init(&chan->heap, 0, PAGE_SIZE, 1);
 311 done:
 312         if (ret)
 313                 nouveau_abi16_chan_fini(abi16, chan);
 314         return nouveau_abi16_put(abi16, ret);
 315 }
 316
 317
 318 int
 319 nouveau_abi16_ioctl_channel_free(ABI16_IOCTL_ARGS)
 320 {
 321         struct drm_nouveau_channel_free *req = data;
 322         struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv, dev);
 323         struct nouveau_abi16_chan *chan;
 324         int ret = -ENOENT;
 325
 326         if (unlikely(!abi16))
 327                 return -ENOMEM;
 328
 329         list_for_each_entry(chan, &abi16->channels, head) {
 330                 if (chan->chan->handle == (NVDRM_CHAN | req->channel)) {
 331                         nouveau_abi16_chan_fini(abi16, chan);
 332                         return nouveau_abi16_put(abi16, 0);
 333                 }
 334         }
 335
 336         return nouveau_abi16_put(abi16, ret);
 337 }
 338
 339 int
 340 nouveau_abi16_ioctl_grobj_alloc(ABI16_IOCTL_ARGS)
 341 {
 342         struct drm_nouveau_grobj_alloc *init = data;
 343         struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv, dev);
 344         struct nouveau_drm *drm = nouveau_drm(dev);
 345         struct nouveau_object *object;
 346         int ret;
 347
 348         if (unlikely(!abi16))
 349                 return -ENOMEM;
 350
 351         if (init->handle == ~0)
 352                 return nouveau_abi16_put(abi16, -EINVAL);
 353
 354         /* compatibility with userspace that assumes 506e for all chipsets */
 355         if (init->class == 0x506e) {
 356                 init->class = nouveau_abi16_swclass(drm);
 357                 if (init->class == 0x906e)
 358                         return nouveau_abi16_put(abi16, 0);
 359         }
 360
 361         ret = nouveau_object_new(abi16->client, NVDRM_CHAN | init->channel,
 362                                   init->handle, init->class, NULL, 0, &object);
 363         return nouveau_abi16_put(abi16, ret);
 364 }
 365
 366 int
 367 nouveau_abi16_ioctl_notifierobj_alloc(ABI16_IOCTL_ARGS)
 368 {
 369         struct drm_nouveau_notifierobj_alloc *info = data;
 370         struct nouveau_drm *drm = nouveau_drm(dev);
 371         struct nouveau_device *device = nv_device(drm->device);
 372         struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv, dev);
 373         struct nouveau_abi16_chan *chan, *temp;
 374         struct nouveau_abi16_ntfy *ntfy;
 375         struct nouveau_object *object;
 376         struct nv_dma_class args;
 377         int ret;
 378
 379         if (unlikely(!abi16))
 380                 return -ENOMEM;
 381
 382         /* completely unnecessary for these chipsets... */
 383         if (unlikely(nv_device(abi16->device)->card_type >= NV_C0))
 384                 return nouveau_abi16_put(abi16, -EINVAL);
 385
 386         list_for_each_entry_safe(chan, temp, &abi16->channels, head) {
 387                 if (chan->chan->handle == (NVDRM_CHAN | info->channel))
 388                         break;
 389                 chan = NULL;
 390         }
 391
 392         if (!chan)
 393                 return nouveau_abi16_put(abi16, -ENOENT);
 394
 395         ntfy = kzalloc(sizeof(*ntfy), GFP_KERNEL);
 396         if (!ntfy)
 397                 return nouveau_abi16_put(abi16, -ENOMEM);
 398
 399         list_add(&ntfy->head, &chan->notifiers);
 400         ntfy->handle = info->handle;
 401
 402         ret = nouveau_mm_head(&chan->heap, 1, info->size, info->size, 1,
 403                               &ntfy->node);
 404         if (ret)
 405                 goto done;
 406
 407         args.start = ntfy->node->offset;
 408         args.limit = ntfy->node->offset + ntfy->node->length - 1;
 409         if (device->card_type >= NV_50) {
 410                 args.flags  = NV_DMA_TARGET_VM | NV_DMA_ACCESS_VM;
 411                 args.start += chan->ntfy_vma.offset;
 412                 args.limit += chan->ntfy_vma.offset;
 413         } else
 414         if (drm->agp.stat == ENABLED) {
 415                 args.flags  = NV_DMA_TARGET_AGP | NV_DMA_ACCESS_RDWR;
 416                 args.start += drm->agp.base + chan->ntfy->bo.offset;
 417                 args.limit += drm->agp.base + chan->ntfy->bo.offset;
 418         } else {
 419                 args.flags  = NV_DMA_TARGET_VM | NV_DMA_ACCESS_RDWR;
 420                 args.start += chan->ntfy->bo.offset;
 421                 args.limit += chan->ntfy->bo.offset;
 422         }
 423
 424         ret = nouveau_object_new(abi16->client, chan->chan->handle,
 425                                  ntfy->handle, 0x003d, &args,
 426                                  sizeof(args), &object);
 427         if (ret)
 428                 goto done;
 429
 430 done:
 431         if (ret)
 432                 nouveau_abi16_ntfy_fini(chan, ntfy);
 433         return nouveau_abi16_put(abi16, ret);
 434 }
 435
 436 int
 437 nouveau_abi16_ioctl_gpuobj_free(ABI16_IOCTL_ARGS)
 438 {
 439         struct drm_nouveau_gpuobj_free *fini = data;
 440         struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv, dev);
 441         struct nouveau_abi16_chan *chan, *temp;
 442         struct nouveau_abi16_ntfy *ntfy;
 443         int ret;
 444
 445         if (unlikely(!abi16))
 446                 return -ENOMEM;
 447
 448         list_for_each_entry_safe(chan, temp, &abi16->channels, head) {
 449                 if (chan->chan->handle == (NVDRM_CHAN | fini->channel))
 450                         break;
 451                 chan = NULL;
 452         }
 453
 454         if (!chan)
 455                 return nouveau_abi16_put(abi16, -ENOENT);
 456
 457         /* synchronize with the user channel and destroy the gpu object */
 458         nouveau_channel_idle(chan->chan);
 459
 460         ret = nouveau_object_del(abi16->client, chan->chan->handle, fini->handle);
 461         if (ret)
 462                 return nouveau_abi16_put(abi16, ret);
 463
 464         /* cleanup extra state if this object was a notifier */
 465         list_for_each_entry(ntfy, &chan->notifiers, head) {
 466                 if (ntfy->handle == fini->handle) {
 467                         nouveau_mm_free(&chan->heap, &ntfy->node);
 468                         list_del(&ntfy->head);
 469                         break;
 470                 }
 471         }
 472
 473         return nouveau_abi16_put(abi16, 0);
 474 }