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 if (device->card_type >= NV_E0) { 268 init->fb_ctxdma_handle = NVE0_CHANNEL_IND_ENGINE_GR; 269 init->tt_ctxdma_handle = 0; 270 } 271 272 ret = nouveau_channel_new(drm, cli, NVDRM_DEVICE, NVDRM_CHAN | 273 init->channel, init->fb_ctxdma_handle, 274 init->tt_ctxdma_handle, &chan->chan); 275 if (ret) 276 goto done; 277 278 if (device->card_type >= NV_50) 279 init->pushbuf_domains = NOUVEAU_GEM_DOMAIN_VRAM | 280 NOUVEAU_GEM_DOMAIN_GART; 281 else 282 if (chan->chan->push.buffer->bo.mem.mem_type == TTM_PL_VRAM) 283 init->pushbuf_domains = NOUVEAU_GEM_DOMAIN_VRAM; 284 else 285 init->pushbuf_domains = NOUVEAU_GEM_DOMAIN_GART; 286 287 if (device->card_type < NV_C0) { 288 init->subchan[0].handle = 0x00000000; 289 init->subchan[0].grclass = 0x0000; 290 init->subchan[1].handle = NvSw; 291 init->subchan[1].grclass = 0x506e; 292 init->nr_subchan = 2; 293 } 294 295 /* Named memory object area */ 296 ret = nouveau_gem_new(dev, PAGE_SIZE, 0, NOUVEAU_GEM_DOMAIN_GART, 297 0, 0, &chan->ntfy); 298 if (ret == 0) 299 ret = nouveau_bo_pin(chan->ntfy, TTM_PL_FLAG_TT); 300 if (ret) 301 goto done; 302 303 if (device->card_type >= NV_50) { 304 ret = nouveau_bo_vma_add(chan->ntfy, client->vm, 305 &chan->ntfy_vma); 306 if (ret) 307 goto done; 308 } 309 310 ret = drm_gem_handle_create(file_priv, chan->ntfy->gem, 311 &init->notifier_handle); 312 if (ret) 313 goto done; 314 315 ret = nouveau_mm_init(&chan->heap, 0, PAGE_SIZE, 1); 316 done: 317 if (ret) 318 nouveau_abi16_chan_fini(abi16, chan); 319 return nouveau_abi16_put(abi16, ret); 320 } 321 322 323 int 324 nouveau_abi16_ioctl_channel_free(ABI16_IOCTL_ARGS) 325 { 326 struct drm_nouveau_channel_free *req = data; 327 struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv, dev); 328 struct nouveau_abi16_chan *chan; 329 int ret = -ENOENT; 330 331 if (unlikely(!abi16)) 332 return -ENOMEM; 333 334 list_for_each_entry(chan, &abi16->channels, head) { 335 if (chan->chan->handle == (NVDRM_CHAN | req->channel)) { 336 nouveau_abi16_chan_fini(abi16, chan); 337 return nouveau_abi16_put(abi16, 0); 338 } 339 } 340 341 return nouveau_abi16_put(abi16, ret); 342 } 343 344 int 345 nouveau_abi16_ioctl_grobj_alloc(ABI16_IOCTL_ARGS) 346 { 347 struct drm_nouveau_grobj_alloc *init = data; 348 struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv, dev); 349 struct nouveau_drm *drm = nouveau_drm(dev); 350 struct nouveau_object *object; 351 int ret; 352 353 if (unlikely(!abi16)) 354 return -ENOMEM; 355 356 if (init->handle == ~0) 357 return nouveau_abi16_put(abi16, -EINVAL); 358 359 /* compatibility with userspace that assumes 506e for all chipsets */ 360 if (init->class == 0x506e) { 361 init->class = nouveau_abi16_swclass(drm); 362 if (init->class == 0x906e) 363 return nouveau_abi16_put(abi16, 0); 364 } 365 366 ret = nouveau_object_new(abi16->client, NVDRM_CHAN | init->channel, 367 init->handle, init->class, NULL, 0, &object); 368 return nouveau_abi16_put(abi16, ret); 369 } 370 371 int 372 nouveau_abi16_ioctl_notifierobj_alloc(ABI16_IOCTL_ARGS) 373 { 374 struct drm_nouveau_notifierobj_alloc *info = data; 375 struct nouveau_drm *drm = nouveau_drm(dev); 376 struct nouveau_device *device = nv_device(drm->device); 377 struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv, dev); 378 struct nouveau_abi16_chan *chan, *temp; 379 struct nouveau_abi16_ntfy *ntfy; 380 struct nouveau_object *object; 381 struct nv_dma_class args; 382 int ret; 383 384 if (unlikely(!abi16)) 385 return -ENOMEM; 386 387 /* completely unnecessary for these chipsets... */ 388 if (unlikely(nv_device(abi16->device)->card_type >= NV_C0)) 389 return nouveau_abi16_put(abi16, -EINVAL); 390 391 list_for_each_entry_safe(chan, temp, &abi16->channels, head) { 392 if (chan->chan->handle == (NVDRM_CHAN | info->channel)) 393 break; 394 chan = NULL; 395 } 396 397 if (!chan) 398 return nouveau_abi16_put(abi16, -ENOENT); 399 400 ntfy = kzalloc(sizeof(*ntfy), GFP_KERNEL); 401 if (!ntfy) 402 return nouveau_abi16_put(abi16, -ENOMEM); 403 404 list_add(&ntfy->head, &chan->notifiers); 405 ntfy->handle = info->handle; 406 407 ret = nouveau_mm_head(&chan->heap, 1, info->size, info->size, 1, 408 &ntfy->node); 409 if (ret) 410 goto done; 411 412 args.start = ntfy->node->offset; 413 args.limit = ntfy->node->offset + ntfy->node->length - 1; 414 if (device->card_type >= NV_50) { 415 args.flags = NV_DMA_TARGET_VM | NV_DMA_ACCESS_VM; 416 args.start += chan->ntfy_vma.offset; 417 args.limit += chan->ntfy_vma.offset; 418 } else 419 if (drm->agp.stat == ENABLED) { 420 args.flags = NV_DMA_TARGET_AGP | NV_DMA_ACCESS_RDWR; 421 args.start += drm->agp.base + chan->ntfy->bo.offset; 422 args.limit += drm->agp.base + chan->ntfy->bo.offset; 423 } else { 424 args.flags = NV_DMA_TARGET_VM | NV_DMA_ACCESS_RDWR; 425 args.start += chan->ntfy->bo.offset; 426 args.limit += chan->ntfy->bo.offset; 427 } 428 429 ret = nouveau_object_new(abi16->client, chan->chan->handle, 430 ntfy->handle, 0x003d, &args, 431 sizeof(args), &object); 432 if (ret) 433 goto done; 434 435 done: 436 if (ret) 437 nouveau_abi16_ntfy_fini(chan, ntfy); 438 return nouveau_abi16_put(abi16, ret); 439 } 440 441 int 442 nouveau_abi16_ioctl_gpuobj_free(ABI16_IOCTL_ARGS) 443 { 444 struct drm_nouveau_gpuobj_free *fini = data; 445 struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv, dev); 446 struct nouveau_abi16_chan *chan, *temp; 447 struct nouveau_abi16_ntfy *ntfy; 448 int ret; 449 450 if (unlikely(!abi16)) 451 return -ENOMEM; 452 453 list_for_each_entry_safe(chan, temp, &abi16->channels, head) { 454 if (chan->chan->handle == (NVDRM_CHAN | fini->channel)) 455 break; 456 chan = NULL; 457 } 458 459 if (!chan) 460 return nouveau_abi16_put(abi16, -ENOENT); 461 462 /* synchronize with the user channel and destroy the gpu object */ 463 nouveau_channel_idle(chan->chan); 464 465 ret = nouveau_object_del(abi16->client, chan->chan->handle, fini->handle); 466 if (ret) 467 return nouveau_abi16_put(abi16, ret); 468 469 /* cleanup extra state if this object was a notifier */ 470 list_for_each_entry(ntfy, &chan->notifiers, head) { 471 if (ntfy->handle == fini->handle) { 472 nouveau_mm_free(&chan->heap, &ntfy->node); 473 list_del(&ntfy->head); 474 break; 475 } 476 } 477 478 return nouveau_abi16_put(abi16, 0); 479 } 480