1 /* 2 * Copyright 2008 Advanced Micro Devices, Inc. 3 * Copyright 2008 Red Hat Inc. 4 * Copyright 2009 Jerome Glisse. 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 * Authors: Dave Airlie 25 * Alex Deucher 26 * Jerome Glisse 27 */ 28 #include "drmP.h" 29 #include "drm.h" 30 #include "radeon_drm.h" 31 #include "radeon.h" 32 33 int radeon_gem_object_init(struct drm_gem_object *obj) 34 { 35 BUG(); 36 37 return 0; 38 } 39 40 void radeon_gem_object_free(struct drm_gem_object *gobj) 41 { 42 struct radeon_bo *robj = gem_to_radeon_bo(gobj); 43 44 if (robj) { 45 if (robj->gem_base.import_attach) 46 drm_prime_gem_destroy(&robj->gem_base, robj->tbo.sg); 47 radeon_bo_unref(&robj); 48 } 49 } 50 51 int radeon_gem_object_create(struct radeon_device *rdev, int size, 52 int alignment, int initial_domain, 53 bool discardable, bool kernel, 54 struct drm_gem_object **obj) 55 { 56 struct radeon_bo *robj; 57 int r; 58 59 *obj = NULL; 60 /* At least align on page size */ 61 if (alignment < PAGE_SIZE) { 62 alignment = PAGE_SIZE; 63 } 64 r = radeon_bo_create(rdev, size, alignment, kernel, initial_domain, NULL, &robj); 65 if (r) { 66 if (r != -ERESTARTSYS) 67 DRM_ERROR("Failed to allocate GEM object (%d, %d, %u, %d)\n", 68 size, initial_domain, alignment, r); 69 return r; 70 } 71 *obj = &robj->gem_base; 72 73 mutex_lock(&rdev->gem.mutex); 74 list_add_tail(&robj->list, &rdev->gem.objects); 75 mutex_unlock(&rdev->gem.mutex); 76 77 return 0; 78 } 79 80 int radeon_gem_set_domain(struct drm_gem_object *gobj, 81 uint32_t rdomain, uint32_t wdomain) 82 { 83 struct radeon_bo *robj; 84 uint32_t domain; 85 int r; 86 87 /* FIXME: reeimplement */ 88 robj = gem_to_radeon_bo(gobj); 89 /* work out where to validate the buffer to */ 90 domain = wdomain; 91 if (!domain) { 92 domain = rdomain; 93 } 94 if (!domain) { 95 /* Do nothings */ 96 printk(KERN_WARNING "Set domain without domain !\n"); 97 return 0; 98 } 99 if (domain == RADEON_GEM_DOMAIN_CPU) { 100 /* Asking for cpu access wait for object idle */ 101 r = radeon_bo_wait(robj, NULL, false); 102 if (r) { 103 printk(KERN_ERR "Failed to wait for object !\n"); 104 return r; 105 } 106 } 107 return 0; 108 } 109 110 int radeon_gem_init(struct radeon_device *rdev) 111 { 112 INIT_LIST_HEAD(&rdev->gem.objects); 113 return 0; 114 } 115 116 void radeon_gem_fini(struct radeon_device *rdev) 117 { 118 radeon_bo_force_delete(rdev); 119 } 120 121 /* 122 * Call from drm_gem_handle_create which appear in both new and open ioctl 123 * case. 124 */ 125 int radeon_gem_object_open(struct drm_gem_object *obj, struct drm_file *file_priv) 126 { 127 return 0; 128 } 129 130 void radeon_gem_object_close(struct drm_gem_object *obj, 131 struct drm_file *file_priv) 132 { 133 struct radeon_bo *rbo = gem_to_radeon_bo(obj); 134 struct radeon_device *rdev = rbo->rdev; 135 struct radeon_fpriv *fpriv = file_priv->driver_priv; 136 struct radeon_vm *vm = &fpriv->vm; 137 struct radeon_bo_va *bo_va, *tmp; 138 139 if (rdev->family < CHIP_CAYMAN) { 140 return; 141 } 142 143 if (radeon_bo_reserve(rbo, false)) { 144 return; 145 } 146 list_for_each_entry_safe(bo_va, tmp, &rbo->va, bo_list) { 147 if (bo_va->vm == vm) { 148 /* remove from this vm address space */ 149 mutex_lock(&vm->mutex); 150 list_del(&bo_va->vm_list); 151 mutex_unlock(&vm->mutex); 152 list_del(&bo_va->bo_list); 153 kfree(bo_va); 154 } 155 } 156 radeon_bo_unreserve(rbo); 157 } 158 159 static int radeon_gem_handle_lockup(struct radeon_device *rdev, int r) 160 { 161 if (r == -EDEADLK) { 162 radeon_mutex_lock(&rdev->cs_mutex); 163 r = radeon_gpu_reset(rdev); 164 if (!r) 165 r = -EAGAIN; 166 radeon_mutex_unlock(&rdev->cs_mutex); 167 } 168 return r; 169 } 170 171 /* 172 * GEM ioctls. 173 */ 174 int radeon_gem_info_ioctl(struct drm_device *dev, void *data, 175 struct drm_file *filp) 176 { 177 struct radeon_device *rdev = dev->dev_private; 178 struct drm_radeon_gem_info *args = data; 179 struct ttm_mem_type_manager *man; 180 unsigned i; 181 182 man = &rdev->mman.bdev.man[TTM_PL_VRAM]; 183 184 args->vram_size = rdev->mc.real_vram_size; 185 args->vram_visible = (u64)man->size << PAGE_SHIFT; 186 if (rdev->stollen_vga_memory) 187 args->vram_visible -= radeon_bo_size(rdev->stollen_vga_memory); 188 args->vram_visible -= radeon_fbdev_total_size(rdev); 189 args->gart_size = rdev->mc.gtt_size - 4096 - RADEON_IB_POOL_SIZE*64*1024; 190 for(i = 0; i < RADEON_NUM_RINGS; ++i) 191 args->gart_size -= rdev->ring[i].ring_size; 192 return 0; 193 } 194 195 int radeon_gem_pread_ioctl(struct drm_device *dev, void *data, 196 struct drm_file *filp) 197 { 198 /* TODO: implement */ 199 DRM_ERROR("unimplemented %s\n", __func__); 200 return -ENOSYS; 201 } 202 203 int radeon_gem_pwrite_ioctl(struct drm_device *dev, void *data, 204 struct drm_file *filp) 205 { 206 /* TODO: implement */ 207 DRM_ERROR("unimplemented %s\n", __func__); 208 return -ENOSYS; 209 } 210 211 int radeon_gem_create_ioctl(struct drm_device *dev, void *data, 212 struct drm_file *filp) 213 { 214 struct radeon_device *rdev = dev->dev_private; 215 struct drm_radeon_gem_create *args = data; 216 struct drm_gem_object *gobj; 217 uint32_t handle; 218 int r; 219 220 /* create a gem object to contain this object in */ 221 args->size = roundup(args->size, PAGE_SIZE); 222 r = radeon_gem_object_create(rdev, args->size, args->alignment, 223 args->initial_domain, false, 224 false, &gobj); 225 if (r) { 226 r = radeon_gem_handle_lockup(rdev, r); 227 return r; 228 } 229 r = drm_gem_handle_create(filp, gobj, &handle); 230 /* drop reference from allocate - handle holds it now */ 231 drm_gem_object_unreference_unlocked(gobj); 232 if (r) { 233 r = radeon_gem_handle_lockup(rdev, r); 234 return r; 235 } 236 args->handle = handle; 237 return 0; 238 } 239 240 int radeon_gem_set_domain_ioctl(struct drm_device *dev, void *data, 241 struct drm_file *filp) 242 { 243 /* transition the BO to a domain - 244 * just validate the BO into a certain domain */ 245 struct drm_radeon_gem_set_domain *args = data; 246 struct drm_gem_object *gobj; 247 struct radeon_bo *robj; 248 int r; 249 250 /* for now if someone requests domain CPU - 251 * just make sure the buffer is finished with */ 252 253 /* just do a BO wait for now */ 254 gobj = drm_gem_object_lookup(dev, filp, args->handle); 255 if (gobj == NULL) { 256 return -ENOENT; 257 } 258 robj = gem_to_radeon_bo(gobj); 259 260 r = radeon_gem_set_domain(gobj, args->read_domains, args->write_domain); 261 262 drm_gem_object_unreference_unlocked(gobj); 263 r = radeon_gem_handle_lockup(robj->rdev, r); 264 return r; 265 } 266 267 int radeon_mode_dumb_mmap(struct drm_file *filp, 268 struct drm_device *dev, 269 uint32_t handle, uint64_t *offset_p) 270 { 271 struct drm_gem_object *gobj; 272 struct radeon_bo *robj; 273 274 gobj = drm_gem_object_lookup(dev, filp, handle); 275 if (gobj == NULL) { 276 return -ENOENT; 277 } 278 robj = gem_to_radeon_bo(gobj); 279 *offset_p = radeon_bo_mmap_offset(robj); 280 drm_gem_object_unreference_unlocked(gobj); 281 return 0; 282 } 283 284 int radeon_gem_mmap_ioctl(struct drm_device *dev, void *data, 285 struct drm_file *filp) 286 { 287 struct drm_radeon_gem_mmap *args = data; 288 289 return radeon_mode_dumb_mmap(filp, dev, args->handle, &args->addr_ptr); 290 } 291 292 int radeon_gem_busy_ioctl(struct drm_device *dev, void *data, 293 struct drm_file *filp) 294 { 295 struct radeon_device *rdev = dev->dev_private; 296 struct drm_radeon_gem_busy *args = data; 297 struct drm_gem_object *gobj; 298 struct radeon_bo *robj; 299 int r; 300 uint32_t cur_placement = 0; 301 302 gobj = drm_gem_object_lookup(dev, filp, args->handle); 303 if (gobj == NULL) { 304 return -ENOENT; 305 } 306 robj = gem_to_radeon_bo(gobj); 307 r = radeon_bo_wait(robj, &cur_placement, true); 308 switch (cur_placement) { 309 case TTM_PL_VRAM: 310 args->domain = RADEON_GEM_DOMAIN_VRAM; 311 break; 312 case TTM_PL_TT: 313 args->domain = RADEON_GEM_DOMAIN_GTT; 314 break; 315 case TTM_PL_SYSTEM: 316 args->domain = RADEON_GEM_DOMAIN_CPU; 317 default: 318 break; 319 } 320 drm_gem_object_unreference_unlocked(gobj); 321 r = radeon_gem_handle_lockup(rdev, r); 322 return r; 323 } 324 325 int radeon_gem_wait_idle_ioctl(struct drm_device *dev, void *data, 326 struct drm_file *filp) 327 { 328 struct radeon_device *rdev = dev->dev_private; 329 struct drm_radeon_gem_wait_idle *args = data; 330 struct drm_gem_object *gobj; 331 struct radeon_bo *robj; 332 int r; 333 334 gobj = drm_gem_object_lookup(dev, filp, args->handle); 335 if (gobj == NULL) { 336 return -ENOENT; 337 } 338 robj = gem_to_radeon_bo(gobj); 339 r = radeon_bo_wait(robj, NULL, false); 340 /* callback hw specific functions if any */ 341 if (rdev->asic->ioctl_wait_idle) 342 robj->rdev->asic->ioctl_wait_idle(rdev, robj); 343 drm_gem_object_unreference_unlocked(gobj); 344 r = radeon_gem_handle_lockup(rdev, r); 345 return r; 346 } 347 348 int radeon_gem_set_tiling_ioctl(struct drm_device *dev, void *data, 349 struct drm_file *filp) 350 { 351 struct drm_radeon_gem_set_tiling *args = data; 352 struct drm_gem_object *gobj; 353 struct radeon_bo *robj; 354 int r = 0; 355 356 DRM_DEBUG("%d \n", args->handle); 357 gobj = drm_gem_object_lookup(dev, filp, args->handle); 358 if (gobj == NULL) 359 return -ENOENT; 360 robj = gem_to_radeon_bo(gobj); 361 r = radeon_bo_set_tiling_flags(robj, args->tiling_flags, args->pitch); 362 drm_gem_object_unreference_unlocked(gobj); 363 return r; 364 } 365 366 int radeon_gem_get_tiling_ioctl(struct drm_device *dev, void *data, 367 struct drm_file *filp) 368 { 369 struct drm_radeon_gem_get_tiling *args = data; 370 struct drm_gem_object *gobj; 371 struct radeon_bo *rbo; 372 int r = 0; 373 374 DRM_DEBUG("\n"); 375 gobj = drm_gem_object_lookup(dev, filp, args->handle); 376 if (gobj == NULL) 377 return -ENOENT; 378 rbo = gem_to_radeon_bo(gobj); 379 r = radeon_bo_reserve(rbo, false); 380 if (unlikely(r != 0)) 381 goto out; 382 radeon_bo_get_tiling_flags(rbo, &args->tiling_flags, &args->pitch); 383 radeon_bo_unreserve(rbo); 384 out: 385 drm_gem_object_unreference_unlocked(gobj); 386 return r; 387 } 388 389 int radeon_gem_va_ioctl(struct drm_device *dev, void *data, 390 struct drm_file *filp) 391 { 392 struct drm_radeon_gem_va *args = data; 393 struct drm_gem_object *gobj; 394 struct radeon_device *rdev = dev->dev_private; 395 struct radeon_fpriv *fpriv = filp->driver_priv; 396 struct radeon_bo *rbo; 397 struct radeon_bo_va *bo_va; 398 u32 invalid_flags; 399 int r = 0; 400 401 if (!rdev->vm_manager.enabled) { 402 args->operation = RADEON_VA_RESULT_ERROR; 403 return -ENOTTY; 404 } 405 406 /* !! DONT REMOVE !! 407 * We don't support vm_id yet, to be sure we don't have have broken 408 * userspace, reject anyone trying to use non 0 value thus moving 409 * forward we can use those fields without breaking existant userspace 410 */ 411 if (args->vm_id) { 412 args->operation = RADEON_VA_RESULT_ERROR; 413 return -EINVAL; 414 } 415 416 if (args->offset < RADEON_VA_RESERVED_SIZE) { 417 dev_err(&dev->pdev->dev, 418 "offset 0x%lX is in reserved area 0x%X\n", 419 (unsigned long)args->offset, 420 RADEON_VA_RESERVED_SIZE); 421 args->operation = RADEON_VA_RESULT_ERROR; 422 return -EINVAL; 423 } 424 425 /* don't remove, we need to enforce userspace to set the snooped flag 426 * otherwise we will endup with broken userspace and we won't be able 427 * to enable this feature without adding new interface 428 */ 429 invalid_flags = RADEON_VM_PAGE_VALID | RADEON_VM_PAGE_SYSTEM; 430 if ((args->flags & invalid_flags)) { 431 dev_err(&dev->pdev->dev, "invalid flags 0x%08X vs 0x%08X\n", 432 args->flags, invalid_flags); 433 args->operation = RADEON_VA_RESULT_ERROR; 434 return -EINVAL; 435 } 436 if (!(args->flags & RADEON_VM_PAGE_SNOOPED)) { 437 dev_err(&dev->pdev->dev, "only supported snooped mapping for now\n"); 438 args->operation = RADEON_VA_RESULT_ERROR; 439 return -EINVAL; 440 } 441 442 switch (args->operation) { 443 case RADEON_VA_MAP: 444 case RADEON_VA_UNMAP: 445 break; 446 default: 447 dev_err(&dev->pdev->dev, "unsupported operation %d\n", 448 args->operation); 449 args->operation = RADEON_VA_RESULT_ERROR; 450 return -EINVAL; 451 } 452 453 gobj = drm_gem_object_lookup(dev, filp, args->handle); 454 if (gobj == NULL) { 455 args->operation = RADEON_VA_RESULT_ERROR; 456 return -ENOENT; 457 } 458 rbo = gem_to_radeon_bo(gobj); 459 r = radeon_bo_reserve(rbo, false); 460 if (r) { 461 args->operation = RADEON_VA_RESULT_ERROR; 462 drm_gem_object_unreference_unlocked(gobj); 463 return r; 464 } 465 switch (args->operation) { 466 case RADEON_VA_MAP: 467 bo_va = radeon_bo_va(rbo, &fpriv->vm); 468 if (bo_va) { 469 args->operation = RADEON_VA_RESULT_VA_EXIST; 470 args->offset = bo_va->soffset; 471 goto out; 472 } 473 r = radeon_vm_bo_add(rdev, &fpriv->vm, rbo, 474 args->offset, args->flags); 475 break; 476 case RADEON_VA_UNMAP: 477 r = radeon_vm_bo_rmv(rdev, &fpriv->vm, rbo); 478 break; 479 default: 480 break; 481 } 482 args->operation = RADEON_VA_RESULT_OK; 483 if (r) { 484 args->operation = RADEON_VA_RESULT_ERROR; 485 } 486 out: 487 radeon_bo_unreserve(rbo); 488 drm_gem_object_unreference_unlocked(gobj); 489 return r; 490 } 491 492 int radeon_mode_dumb_create(struct drm_file *file_priv, 493 struct drm_device *dev, 494 struct drm_mode_create_dumb *args) 495 { 496 struct radeon_device *rdev = dev->dev_private; 497 struct drm_gem_object *gobj; 498 uint32_t handle; 499 int r; 500 501 args->pitch = radeon_align_pitch(rdev, args->width, args->bpp, 0) * ((args->bpp + 1) / 8); 502 args->size = args->pitch * args->height; 503 args->size = ALIGN(args->size, PAGE_SIZE); 504 505 r = radeon_gem_object_create(rdev, args->size, 0, 506 RADEON_GEM_DOMAIN_VRAM, 507 false, ttm_bo_type_device, 508 &gobj); 509 if (r) 510 return -ENOMEM; 511 512 r = drm_gem_handle_create(file_priv, gobj, &handle); 513 /* drop reference from allocate - handle holds it now */ 514 drm_gem_object_unreference_unlocked(gobj); 515 if (r) { 516 return r; 517 } 518 args->handle = handle; 519 return 0; 520 } 521 522 int radeon_mode_dumb_destroy(struct drm_file *file_priv, 523 struct drm_device *dev, 524 uint32_t handle) 525 { 526 return drm_gem_handle_delete(file_priv, handle); 527 } 528