1 /* $NetBSD: nouveau_abi16.c,v 1.2 2014/08/06 13:54:20 riastradh Exp $ */ 2 3 /* 4 * Copyright 2012 Red Hat Inc. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the "Software"), 8 * to deal in the Software without restriction, including without limitation 9 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 10 * and/or sell copies of the Software, and to permit persons to whom the 11 * Software is furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be included in 14 * all copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 19 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 22 * OTHER DEALINGS IN THE SOFTWARE. 23 * 24 */ 25 26 #include <sys/cdefs.h> 27 __KERNEL_RCSID(0, "$NetBSD: nouveau_abi16.c,v 1.2 2014/08/06 13:54:20 riastradh Exp $"); 28 29 #include <core/object.h> 30 #include <core/client.h> 31 #include <core/device.h> 32 #include <core/class.h> 33 #include <core/mm.h> 34 35 #include <subdev/fb.h> 36 #include <subdev/timer.h> 37 #include <subdev/instmem.h> 38 #include <engine/graph.h> 39 40 #include "nouveau_drm.h" 41 #include "nouveau_dma.h" 42 #include "nouveau_gem.h" 43 #include "nouveau_chan.h" 44 #include "nouveau_abi16.h" 45 46 struct nouveau_abi16 * 47 nouveau_abi16_get(struct drm_file *file_priv, struct drm_device *dev) 48 { 49 struct nouveau_cli *cli = nouveau_cli(file_priv); 50 mutex_lock(&cli->mutex); 51 if (!cli->abi16) { 52 struct nouveau_abi16 *abi16; 53 cli->abi16 = abi16 = kzalloc(sizeof(*abi16), GFP_KERNEL); 54 if (cli->abi16) { 55 INIT_LIST_HEAD(&abi16->channels); 56 abi16->client = nv_object(cli); 57 58 /* allocate device object targeting client's default 59 * device (ie. the one that belongs to the fd it 60 * opened) 61 */ 62 if (nouveau_object_new(abi16->client, NVDRM_CLIENT, 63 NVDRM_DEVICE, 0x0080, 64 &(struct nv_device_class) { 65 .device = ~0ULL, 66 }, 67 sizeof(struct nv_device_class), 68 &abi16->device) == 0) 69 return cli->abi16; 70 71 kfree(cli->abi16); 72 cli->abi16 = NULL; 73 } 74 75 mutex_unlock(&cli->mutex); 76 } 77 return cli->abi16; 78 } 79 80 int 81 nouveau_abi16_put(struct nouveau_abi16 *abi16, int ret) 82 { 83 struct nouveau_cli *cli = (void *)abi16->client; 84 mutex_unlock(&cli->mutex); 85 return ret; 86 } 87 88 u16 89 nouveau_abi16_swclass(struct nouveau_drm *drm) 90 { 91 switch (nv_device(drm->device)->card_type) { 92 case NV_04: 93 return 0x006e; 94 case NV_10: 95 case NV_11: 96 case NV_20: 97 case NV_30: 98 case NV_40: 99 return 0x016e; 100 case NV_50: 101 return 0x506e; 102 case NV_C0: 103 case NV_D0: 104 case NV_E0: 105 case GM100: 106 return 0x906e; 107 } 108 109 return 0x0000; 110 } 111 112 static void 113 nouveau_abi16_ntfy_fini(struct nouveau_abi16_chan *chan, 114 struct nouveau_abi16_ntfy *ntfy) 115 { 116 nouveau_mm_free(&chan->heap, &ntfy->node); 117 list_del(&ntfy->head); 118 kfree(ntfy); 119 } 120 121 static void 122 nouveau_abi16_chan_fini(struct nouveau_abi16 *abi16, 123 struct nouveau_abi16_chan *chan) 124 { 125 struct nouveau_abi16_ntfy *ntfy, *temp; 126 127 /* wait for all activity to stop before releasing notify object, which 128 * may be still in use */ 129 if (chan->chan && chan->ntfy) 130 nouveau_channel_idle(chan->chan); 131 132 /* cleanup notifier state */ 133 list_for_each_entry_safe(ntfy, temp, &chan->notifiers, head) { 134 nouveau_abi16_ntfy_fini(chan, ntfy); 135 } 136 137 if (chan->ntfy) { 138 nouveau_bo_vma_del(chan->ntfy, &chan->ntfy_vma); 139 nouveau_bo_unpin(chan->ntfy); 140 drm_gem_object_unreference_unlocked(&chan->ntfy->gem); 141 } 142 143 if (chan->heap.block_size) 144 nouveau_mm_fini(&chan->heap); 145 146 /* destroy channel object, all children will be killed too */ 147 if (chan->chan) { 148 abi16->handles &= ~(1ULL << (chan->chan->handle & 0xffff)); 149 nouveau_channel_del(&chan->chan); 150 } 151 152 list_del(&chan->head); 153 kfree(chan); 154 } 155 156 void 157 nouveau_abi16_fini(struct nouveau_abi16 *abi16) 158 { 159 struct nouveau_cli *cli = (void *)abi16->client; 160 struct nouveau_abi16_chan *chan, *temp; 161 162 /* cleanup channels */ 163 list_for_each_entry_safe(chan, temp, &abi16->channels, head) { 164 nouveau_abi16_chan_fini(abi16, chan); 165 } 166 167 /* destroy the device object */ 168 nouveau_object_del(abi16->client, NVDRM_CLIENT, NVDRM_DEVICE); 169 170 kfree(cli->abi16); 171 cli->abi16 = NULL; 172 } 173 174 int 175 nouveau_abi16_ioctl_getparam(ABI16_IOCTL_ARGS) 176 { 177 struct nouveau_drm *drm = nouveau_drm(dev); 178 struct nouveau_device *device = nv_device(drm->device); 179 struct nouveau_timer *ptimer = nouveau_timer(device); 180 struct nouveau_graph *graph = (void *)nouveau_engine(device, NVDEV_ENGINE_GR); 181 struct drm_nouveau_getparam *getparam = data; 182 183 switch (getparam->param) { 184 case NOUVEAU_GETPARAM_CHIPSET_ID: 185 getparam->value = device->chipset; 186 break; 187 case NOUVEAU_GETPARAM_PCI_VENDOR: 188 if (nv_device_is_pci(device)) 189 getparam->value = dev->pdev->vendor; 190 else 191 getparam->value = 0; 192 break; 193 case NOUVEAU_GETPARAM_PCI_DEVICE: 194 if (nv_device_is_pci(device)) 195 getparam->value = dev->pdev->device; 196 else 197 getparam->value = 0; 198 break; 199 case NOUVEAU_GETPARAM_BUS_TYPE: 200 if (!nv_device_is_pci(device)) 201 getparam->value = 3; 202 else 203 if (drm_pci_device_is_agp(dev)) 204 getparam->value = 0; 205 else 206 if (!pci_is_pcie(dev->pdev)) 207 getparam->value = 1; 208 else 209 getparam->value = 2; 210 break; 211 case NOUVEAU_GETPARAM_FB_SIZE: 212 getparam->value = drm->gem.vram_available; 213 break; 214 case NOUVEAU_GETPARAM_AGP_SIZE: 215 getparam->value = drm->gem.gart_available; 216 break; 217 case NOUVEAU_GETPARAM_VM_VRAM_BASE: 218 getparam->value = 0; /* deprecated */ 219 break; 220 case NOUVEAU_GETPARAM_PTIMER_TIME: 221 getparam->value = ptimer->read(ptimer); 222 break; 223 case NOUVEAU_GETPARAM_HAS_BO_USAGE: 224 getparam->value = 1; 225 break; 226 case NOUVEAU_GETPARAM_HAS_PAGEFLIP: 227 getparam->value = 1; 228 break; 229 case NOUVEAU_GETPARAM_GRAPH_UNITS: 230 getparam->value = graph->units ? graph->units(graph) : 0; 231 break; 232 default: 233 nv_debug(device, "unknown parameter %"PRId64"\n", 234 getparam->param); 235 return -EINVAL; 236 } 237 238 return 0; 239 } 240 241 int 242 nouveau_abi16_ioctl_setparam(ABI16_IOCTL_ARGS) 243 { 244 return -EINVAL; 245 } 246 247 int 248 nouveau_abi16_ioctl_channel_alloc(ABI16_IOCTL_ARGS) 249 { 250 struct drm_nouveau_channel_alloc *init = data; 251 struct nouveau_cli *cli = nouveau_cli(file_priv); 252 struct nouveau_drm *drm = nouveau_drm(dev); 253 struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv, dev); 254 struct nouveau_abi16_chan *chan; 255 struct nouveau_client *client; 256 struct nouveau_device *device; 257 int ret; 258 259 if (unlikely(!abi16)) 260 return -ENOMEM; 261 262 if (!drm->channel) 263 return nouveau_abi16_put(abi16, -ENODEV); 264 265 client = nv_client(abi16->client); 266 device = nv_device(abi16->device); 267 268 /* hack to allow channel engine type specification on kepler */ 269 if (device->card_type >= NV_E0) { 270 if (init->fb_ctxdma_handle != ~0) 271 init->fb_ctxdma_handle = NVE0_CHANNEL_IND_ENGINE_GR; 272 else 273 init->fb_ctxdma_handle = init->tt_ctxdma_handle; 274 275 /* allow flips to be executed if this is a graphics channel */ 276 init->tt_ctxdma_handle = 0; 277 if (init->fb_ctxdma_handle == NVE0_CHANNEL_IND_ENGINE_GR) 278 init->tt_ctxdma_handle = 1; 279 } 280 281 if (init->fb_ctxdma_handle == ~0 || init->tt_ctxdma_handle == ~0) 282 return nouveau_abi16_put(abi16, -EINVAL); 283 284 /* allocate "abi16 channel" data and make up a handle for it */ 285 init->channel = __ffs64(~abi16->handles); 286 if (~abi16->handles == 0) 287 return nouveau_abi16_put(abi16, -ENOSPC); 288 289 chan = kzalloc(sizeof(*chan), GFP_KERNEL); 290 if (!chan) 291 return nouveau_abi16_put(abi16, -ENOMEM); 292 293 INIT_LIST_HEAD(&chan->notifiers); 294 list_add(&chan->head, &abi16->channels); 295 abi16->handles |= (1ULL << init->channel); 296 297 /* create channel object and initialise dma and fence management */ 298 ret = nouveau_channel_new(drm, cli, NVDRM_DEVICE, NVDRM_CHAN | 299 init->channel, init->fb_ctxdma_handle, 300 init->tt_ctxdma_handle, &chan->chan); 301 if (ret) 302 goto done; 303 304 if (device->card_type >= NV_50) 305 init->pushbuf_domains = NOUVEAU_GEM_DOMAIN_VRAM | 306 NOUVEAU_GEM_DOMAIN_GART; 307 else 308 if (chan->chan->push.buffer->bo.mem.mem_type == TTM_PL_VRAM) 309 init->pushbuf_domains = NOUVEAU_GEM_DOMAIN_VRAM; 310 else 311 init->pushbuf_domains = NOUVEAU_GEM_DOMAIN_GART; 312 313 if (device->card_type < NV_10) { 314 init->subchan[0].handle = 0x00000000; 315 init->subchan[0].grclass = 0x0000; 316 init->subchan[1].handle = NvSw; 317 init->subchan[1].grclass = 0x506e; 318 init->nr_subchan = 2; 319 } 320 321 /* Named memory object area */ 322 ret = nouveau_gem_new(dev, PAGE_SIZE, 0, NOUVEAU_GEM_DOMAIN_GART, 323 0, 0, &chan->ntfy); 324 if (ret == 0) 325 ret = nouveau_bo_pin(chan->ntfy, TTM_PL_FLAG_TT); 326 if (ret) 327 goto done; 328 329 if (device->card_type >= NV_50) { 330 ret = nouveau_bo_vma_add(chan->ntfy, client->vm, 331 &chan->ntfy_vma); 332 if (ret) 333 goto done; 334 } 335 336 ret = drm_gem_handle_create(file_priv, &chan->ntfy->gem, 337 &init->notifier_handle); 338 if (ret) 339 goto done; 340 341 ret = nouveau_mm_init(&chan->heap, 0, PAGE_SIZE, 1); 342 done: 343 if (ret) 344 nouveau_abi16_chan_fini(abi16, chan); 345 return nouveau_abi16_put(abi16, ret); 346 } 347 348 349 int 350 nouveau_abi16_ioctl_channel_free(ABI16_IOCTL_ARGS) 351 { 352 struct drm_nouveau_channel_free *req = data; 353 struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv, dev); 354 struct nouveau_abi16_chan *chan; 355 int ret = -ENOENT; 356 357 if (unlikely(!abi16)) 358 return -ENOMEM; 359 360 list_for_each_entry(chan, &abi16->channels, head) { 361 if (chan->chan->handle == (NVDRM_CHAN | req->channel)) { 362 nouveau_abi16_chan_fini(abi16, chan); 363 return nouveau_abi16_put(abi16, 0); 364 } 365 } 366 367 return nouveau_abi16_put(abi16, ret); 368 } 369 370 int 371 nouveau_abi16_ioctl_grobj_alloc(ABI16_IOCTL_ARGS) 372 { 373 struct drm_nouveau_grobj_alloc *init = data; 374 struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv, dev); 375 struct nouveau_drm *drm = nouveau_drm(dev); 376 struct nouveau_object *object; 377 int ret; 378 379 if (unlikely(!abi16)) 380 return -ENOMEM; 381 382 if (init->handle == ~0) 383 return nouveau_abi16_put(abi16, -EINVAL); 384 385 /* compatibility with userspace that assumes 506e for all chipsets */ 386 if (init->class == 0x506e) { 387 init->class = nouveau_abi16_swclass(drm); 388 if (init->class == 0x906e) 389 return nouveau_abi16_put(abi16, 0); 390 } 391 392 ret = nouveau_object_new(abi16->client, NVDRM_CHAN | init->channel, 393 init->handle, init->class, NULL, 0, &object); 394 return nouveau_abi16_put(abi16, ret); 395 } 396 397 int 398 nouveau_abi16_ioctl_notifierobj_alloc(ABI16_IOCTL_ARGS) 399 { 400 struct drm_nouveau_notifierobj_alloc *info = data; 401 struct nouveau_drm *drm = nouveau_drm(dev); 402 struct nouveau_device *device = nv_device(drm->device); 403 struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv, dev); 404 struct nouveau_abi16_chan *chan = NULL, *temp; 405 struct nouveau_abi16_ntfy *ntfy; 406 struct nouveau_object *object; 407 static const struct nv_dma_class zero_args; 408 struct nv_dma_class args = zero_args; 409 int ret; 410 411 if (unlikely(!abi16)) 412 return -ENOMEM; 413 414 /* completely unnecessary for these chipsets... */ 415 if (unlikely(nv_device(abi16->device)->card_type >= NV_C0)) 416 return nouveau_abi16_put(abi16, -EINVAL); 417 418 list_for_each_entry(temp, &abi16->channels, head) { 419 if (temp->chan->handle == (NVDRM_CHAN | info->channel)) { 420 chan = temp; 421 break; 422 } 423 } 424 425 if (!chan) 426 return nouveau_abi16_put(abi16, -ENOENT); 427 428 ntfy = kzalloc(sizeof(*ntfy), GFP_KERNEL); 429 if (!ntfy) 430 return nouveau_abi16_put(abi16, -ENOMEM); 431 432 list_add(&ntfy->head, &chan->notifiers); 433 ntfy->handle = info->handle; 434 435 ret = nouveau_mm_head(&chan->heap, 1, info->size, info->size, 1, 436 &ntfy->node); 437 if (ret) 438 goto done; 439 440 args.start = ntfy->node->offset; 441 args.limit = ntfy->node->offset + ntfy->node->length - 1; 442 if (device->card_type >= NV_50) { 443 args.flags = NV_DMA_TARGET_VM | NV_DMA_ACCESS_VM; 444 args.start += chan->ntfy_vma.offset; 445 args.limit += chan->ntfy_vma.offset; 446 } else 447 if (drm->agp.stat == ENABLED) { 448 args.flags = NV_DMA_TARGET_AGP | NV_DMA_ACCESS_RDWR; 449 args.start += drm->agp.base + chan->ntfy->bo.offset; 450 args.limit += drm->agp.base + chan->ntfy->bo.offset; 451 } else { 452 args.flags = NV_DMA_TARGET_VM | NV_DMA_ACCESS_RDWR; 453 args.start += chan->ntfy->bo.offset; 454 args.limit += chan->ntfy->bo.offset; 455 } 456 457 ret = nouveau_object_new(abi16->client, chan->chan->handle, 458 ntfy->handle, 0x003d, &args, 459 sizeof(args), &object); 460 if (ret) 461 goto done; 462 463 info->offset = ntfy->node->offset; 464 465 done: 466 if (ret) 467 nouveau_abi16_ntfy_fini(chan, ntfy); 468 return nouveau_abi16_put(abi16, ret); 469 } 470 471 int 472 nouveau_abi16_ioctl_gpuobj_free(ABI16_IOCTL_ARGS) 473 { 474 struct drm_nouveau_gpuobj_free *fini = data; 475 struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv, dev); 476 struct nouveau_abi16_chan *chan = NULL, *temp; 477 struct nouveau_abi16_ntfy *ntfy; 478 int ret; 479 480 if (unlikely(!abi16)) 481 return -ENOMEM; 482 483 list_for_each_entry(temp, &abi16->channels, head) { 484 if (temp->chan->handle == (NVDRM_CHAN | fini->channel)) { 485 chan = temp; 486 break; 487 } 488 } 489 490 if (!chan) 491 return nouveau_abi16_put(abi16, -ENOENT); 492 493 /* synchronize with the user channel and destroy the gpu object */ 494 nouveau_channel_idle(chan->chan); 495 496 ret = nouveau_object_del(abi16->client, chan->chan->handle, fini->handle); 497 if (ret) 498 return nouveau_abi16_put(abi16, ret); 499 500 /* cleanup extra state if this object was a notifier */ 501 list_for_each_entry(ntfy, &chan->notifiers, head) { 502 if (ntfy->handle == fini->handle) { 503 nouveau_mm_free(&chan->heap, &ntfy->node); 504 list_del(&ntfy->head); 505 break; 506 } 507 } 508 509 return nouveau_abi16_put(abi16, 0); 510 } 511