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 radeon_bo_unref(&robj); 46 } 47 } 48 49 int radeon_gem_object_create(struct radeon_device *rdev, int size, 50 int alignment, int initial_domain, 51 bool discardable, bool kernel, 52 struct drm_gem_object **obj) 53 { 54 struct radeon_bo *robj; 55 int r; 56 57 *obj = NULL; 58 /* At least align on page size */ 59 if (alignment < PAGE_SIZE) { 60 alignment = PAGE_SIZE; 61 } 62 r = radeon_bo_create(rdev, size, alignment, kernel, initial_domain, &robj); 63 if (r) { 64 if (r != -ERESTARTSYS) 65 DRM_ERROR("Failed to allocate GEM object (%d, %d, %u, %d)\n", 66 size, initial_domain, alignment, r); 67 return r; 68 } 69 *obj = &robj->gem_base; 70 71 mutex_lock(&rdev->gem.mutex); 72 list_add_tail(&robj->list, &rdev->gem.objects); 73 mutex_unlock(&rdev->gem.mutex); 74 75 return 0; 76 } 77 78 int radeon_gem_object_pin(struct drm_gem_object *obj, uint32_t pin_domain, 79 uint64_t *gpu_addr) 80 { 81 struct radeon_bo *robj = gem_to_radeon_bo(obj); 82 int r; 83 84 r = radeon_bo_reserve(robj, false); 85 if (unlikely(r != 0)) 86 return r; 87 r = radeon_bo_pin(robj, pin_domain, gpu_addr); 88 radeon_bo_unreserve(robj); 89 return r; 90 } 91 92 void radeon_gem_object_unpin(struct drm_gem_object *obj) 93 { 94 struct radeon_bo *robj = gem_to_radeon_bo(obj); 95 int r; 96 97 r = radeon_bo_reserve(robj, false); 98 if (likely(r == 0)) { 99 radeon_bo_unpin(robj); 100 radeon_bo_unreserve(robj); 101 } 102 } 103 104 int radeon_gem_set_domain(struct drm_gem_object *gobj, 105 uint32_t rdomain, uint32_t wdomain) 106 { 107 struct radeon_bo *robj; 108 uint32_t domain; 109 int r; 110 111 /* FIXME: reeimplement */ 112 robj = gem_to_radeon_bo(gobj); 113 /* work out where to validate the buffer to */ 114 domain = wdomain; 115 if (!domain) { 116 domain = rdomain; 117 } 118 if (!domain) { 119 /* Do nothings */ 120 printk(KERN_WARNING "Set domain withou domain !\n"); 121 return 0; 122 } 123 if (domain == RADEON_GEM_DOMAIN_CPU) { 124 /* Asking for cpu access wait for object idle */ 125 r = radeon_bo_wait(robj, NULL, false); 126 if (r) { 127 printk(KERN_ERR "Failed to wait for object !\n"); 128 return r; 129 } 130 } 131 return 0; 132 } 133 134 int radeon_gem_init(struct radeon_device *rdev) 135 { 136 INIT_LIST_HEAD(&rdev->gem.objects); 137 return 0; 138 } 139 140 void radeon_gem_fini(struct radeon_device *rdev) 141 { 142 radeon_bo_force_delete(rdev); 143 } 144 145 /* 146 * Call from drm_gem_handle_create which appear in both new and open ioctl 147 * case. 148 */ 149 int radeon_gem_object_open(struct drm_gem_object *obj, struct drm_file *file_priv) 150 { 151 return 0; 152 } 153 154 void radeon_gem_object_close(struct drm_gem_object *obj, 155 struct drm_file *file_priv) 156 { 157 struct radeon_bo *rbo = gem_to_radeon_bo(obj); 158 struct radeon_device *rdev = rbo->rdev; 159 struct radeon_fpriv *fpriv = file_priv->driver_priv; 160 struct radeon_vm *vm = &fpriv->vm; 161 struct radeon_bo_va *bo_va, *tmp; 162 163 if (rdev->family < CHIP_CAYMAN) { 164 return; 165 } 166 167 if (radeon_bo_reserve(rbo, false)) { 168 return; 169 } 170 list_for_each_entry_safe(bo_va, tmp, &rbo->va, bo_list) { 171 if (bo_va->vm == vm) { 172 /* remove from this vm address space */ 173 mutex_lock(&vm->mutex); 174 list_del(&bo_va->vm_list); 175 mutex_unlock(&vm->mutex); 176 list_del(&bo_va->bo_list); 177 kfree(bo_va); 178 } 179 } 180 radeon_bo_unreserve(rbo); 181 } 182 183 184 /* 185 * GEM ioctls. 186 */ 187 int radeon_gem_info_ioctl(struct drm_device *dev, void *data, 188 struct drm_file *filp) 189 { 190 struct radeon_device *rdev = dev->dev_private; 191 struct drm_radeon_gem_info *args = data; 192 struct ttm_mem_type_manager *man; 193 unsigned i; 194 195 man = &rdev->mman.bdev.man[TTM_PL_VRAM]; 196 197 args->vram_size = rdev->mc.real_vram_size; 198 args->vram_visible = (u64)man->size << PAGE_SHIFT; 199 if (rdev->stollen_vga_memory) 200 args->vram_visible -= radeon_bo_size(rdev->stollen_vga_memory); 201 args->vram_visible -= radeon_fbdev_total_size(rdev); 202 args->gart_size = rdev->mc.gtt_size - 4096 - RADEON_IB_POOL_SIZE*64*1024; 203 for(i = 0; i < RADEON_NUM_RINGS; ++i) 204 args->gart_size -= rdev->ring[i].ring_size; 205 return 0; 206 } 207 208 int radeon_gem_pread_ioctl(struct drm_device *dev, void *data, 209 struct drm_file *filp) 210 { 211 /* TODO: implement */ 212 DRM_ERROR("unimplemented %s\n", __func__); 213 return -ENOSYS; 214 } 215 216 int radeon_gem_pwrite_ioctl(struct drm_device *dev, void *data, 217 struct drm_file *filp) 218 { 219 /* TODO: implement */ 220 DRM_ERROR("unimplemented %s\n", __func__); 221 return -ENOSYS; 222 } 223 224 int radeon_gem_create_ioctl(struct drm_device *dev, void *data, 225 struct drm_file *filp) 226 { 227 struct radeon_device *rdev = dev->dev_private; 228 struct drm_radeon_gem_create *args = data; 229 struct drm_gem_object *gobj; 230 uint32_t handle; 231 int r; 232 233 /* create a gem object to contain this object in */ 234 args->size = roundup(args->size, PAGE_SIZE); 235 r = radeon_gem_object_create(rdev, args->size, args->alignment, 236 args->initial_domain, false, 237 false, &gobj); 238 if (r) { 239 return r; 240 } 241 r = drm_gem_handle_create(filp, gobj, &handle); 242 /* drop reference from allocate - handle holds it now */ 243 drm_gem_object_unreference_unlocked(gobj); 244 if (r) { 245 return r; 246 } 247 args->handle = handle; 248 return 0; 249 } 250 251 int radeon_gem_set_domain_ioctl(struct drm_device *dev, void *data, 252 struct drm_file *filp) 253 { 254 /* transition the BO to a domain - 255 * just validate the BO into a certain domain */ 256 struct drm_radeon_gem_set_domain *args = data; 257 struct drm_gem_object *gobj; 258 struct radeon_bo *robj; 259 int r; 260 261 /* for now if someone requests domain CPU - 262 * just make sure the buffer is finished with */ 263 264 /* just do a BO wait for now */ 265 gobj = drm_gem_object_lookup(dev, filp, args->handle); 266 if (gobj == NULL) { 267 return -ENOENT; 268 } 269 robj = gem_to_radeon_bo(gobj); 270 271 r = radeon_gem_set_domain(gobj, args->read_domains, args->write_domain); 272 273 drm_gem_object_unreference_unlocked(gobj); 274 return r; 275 } 276 277 int radeon_mode_dumb_mmap(struct drm_file *filp, 278 struct drm_device *dev, 279 uint32_t handle, uint64_t *offset_p) 280 { 281 struct drm_gem_object *gobj; 282 struct radeon_bo *robj; 283 284 gobj = drm_gem_object_lookup(dev, filp, handle); 285 if (gobj == NULL) { 286 return -ENOENT; 287 } 288 robj = gem_to_radeon_bo(gobj); 289 *offset_p = radeon_bo_mmap_offset(robj); 290 drm_gem_object_unreference_unlocked(gobj); 291 return 0; 292 } 293 294 int radeon_gem_mmap_ioctl(struct drm_device *dev, void *data, 295 struct drm_file *filp) 296 { 297 struct drm_radeon_gem_mmap *args = data; 298 299 return radeon_mode_dumb_mmap(filp, dev, args->handle, &args->addr_ptr); 300 } 301 302 int radeon_gem_busy_ioctl(struct drm_device *dev, void *data, 303 struct drm_file *filp) 304 { 305 struct drm_radeon_gem_busy *args = data; 306 struct drm_gem_object *gobj; 307 struct radeon_bo *robj; 308 int r; 309 uint32_t cur_placement = 0; 310 311 gobj = drm_gem_object_lookup(dev, filp, args->handle); 312 if (gobj == NULL) { 313 return -ENOENT; 314 } 315 robj = gem_to_radeon_bo(gobj); 316 r = radeon_bo_wait(robj, &cur_placement, true); 317 switch (cur_placement) { 318 case TTM_PL_VRAM: 319 args->domain = RADEON_GEM_DOMAIN_VRAM; 320 break; 321 case TTM_PL_TT: 322 args->domain = RADEON_GEM_DOMAIN_GTT; 323 break; 324 case TTM_PL_SYSTEM: 325 args->domain = RADEON_GEM_DOMAIN_CPU; 326 default: 327 break; 328 } 329 drm_gem_object_unreference_unlocked(gobj); 330 return r; 331 } 332 333 int radeon_gem_wait_idle_ioctl(struct drm_device *dev, void *data, 334 struct drm_file *filp) 335 { 336 struct drm_radeon_gem_wait_idle *args = data; 337 struct drm_gem_object *gobj; 338 struct radeon_bo *robj; 339 int r; 340 341 gobj = drm_gem_object_lookup(dev, filp, args->handle); 342 if (gobj == NULL) { 343 return -ENOENT; 344 } 345 robj = gem_to_radeon_bo(gobj); 346 r = radeon_bo_wait(robj, NULL, false); 347 /* callback hw specific functions if any */ 348 if (robj->rdev->asic->ioctl_wait_idle) 349 robj->rdev->asic->ioctl_wait_idle(robj->rdev, robj); 350 drm_gem_object_unreference_unlocked(gobj); 351 return r; 352 } 353 354 int radeon_gem_set_tiling_ioctl(struct drm_device *dev, void *data, 355 struct drm_file *filp) 356 { 357 struct drm_radeon_gem_set_tiling *args = data; 358 struct drm_gem_object *gobj; 359 struct radeon_bo *robj; 360 int r = 0; 361 362 DRM_DEBUG("%d \n", args->handle); 363 gobj = drm_gem_object_lookup(dev, filp, args->handle); 364 if (gobj == NULL) 365 return -ENOENT; 366 robj = gem_to_radeon_bo(gobj); 367 r = radeon_bo_set_tiling_flags(robj, args->tiling_flags, args->pitch); 368 drm_gem_object_unreference_unlocked(gobj); 369 return r; 370 } 371 372 int radeon_gem_get_tiling_ioctl(struct drm_device *dev, void *data, 373 struct drm_file *filp) 374 { 375 struct drm_radeon_gem_get_tiling *args = data; 376 struct drm_gem_object *gobj; 377 struct radeon_bo *rbo; 378 int r = 0; 379 380 DRM_DEBUG("\n"); 381 gobj = drm_gem_object_lookup(dev, filp, args->handle); 382 if (gobj == NULL) 383 return -ENOENT; 384 rbo = gem_to_radeon_bo(gobj); 385 r = radeon_bo_reserve(rbo, false); 386 if (unlikely(r != 0)) 387 goto out; 388 radeon_bo_get_tiling_flags(rbo, &args->tiling_flags, &args->pitch); 389 radeon_bo_unreserve(rbo); 390 out: 391 drm_gem_object_unreference_unlocked(gobj); 392 return r; 393 } 394 395 int radeon_gem_va_ioctl(struct drm_device *dev, void *data, 396 struct drm_file *filp) 397 { 398 struct drm_radeon_gem_va *args = data; 399 struct drm_gem_object *gobj; 400 struct radeon_device *rdev = dev->dev_private; 401 struct radeon_fpriv *fpriv = filp->driver_priv; 402 struct radeon_bo *rbo; 403 struct radeon_bo_va *bo_va; 404 u32 invalid_flags; 405 int r = 0; 406 407 if (!rdev->vm_manager.enabled) { 408 args->operation = RADEON_VA_RESULT_ERROR; 409 return -ENOTTY; 410 } 411 412 /* !! DONT REMOVE !! 413 * We don't support vm_id yet, to be sure we don't have have broken 414 * userspace, reject anyone trying to use non 0 value thus moving 415 * forward we can use those fields without breaking existant userspace 416 */ 417 if (args->vm_id) { 418 args->operation = RADEON_VA_RESULT_ERROR; 419 return -EINVAL; 420 } 421 422 if (args->offset < RADEON_VA_RESERVED_SIZE) { 423 dev_err(&dev->pdev->dev, 424 "offset 0x%lX is in reserved area 0x%X\n", 425 (unsigned long)args->offset, 426 RADEON_VA_RESERVED_SIZE); 427 args->operation = RADEON_VA_RESULT_ERROR; 428 return -EINVAL; 429 } 430 431 /* don't remove, we need to enforce userspace to set the snooped flag 432 * otherwise we will endup with broken userspace and we won't be able 433 * to enable this feature without adding new interface 434 */ 435 invalid_flags = RADEON_VM_PAGE_VALID | RADEON_VM_PAGE_SYSTEM; 436 if ((args->flags & invalid_flags)) { 437 dev_err(&dev->pdev->dev, "invalid flags 0x%08X vs 0x%08X\n", 438 args->flags, invalid_flags); 439 args->operation = RADEON_VA_RESULT_ERROR; 440 return -EINVAL; 441 } 442 if (!(args->flags & RADEON_VM_PAGE_SNOOPED)) { 443 dev_err(&dev->pdev->dev, "only supported snooped mapping for now\n"); 444 args->operation = RADEON_VA_RESULT_ERROR; 445 return -EINVAL; 446 } 447 448 switch (args->operation) { 449 case RADEON_VA_MAP: 450 case RADEON_VA_UNMAP: 451 break; 452 default: 453 dev_err(&dev->pdev->dev, "unsupported operation %d\n", 454 args->operation); 455 args->operation = RADEON_VA_RESULT_ERROR; 456 return -EINVAL; 457 } 458 459 gobj = drm_gem_object_lookup(dev, filp, args->handle); 460 if (gobj == NULL) { 461 args->operation = RADEON_VA_RESULT_ERROR; 462 return -ENOENT; 463 } 464 rbo = gem_to_radeon_bo(gobj); 465 r = radeon_bo_reserve(rbo, false); 466 if (r) { 467 args->operation = RADEON_VA_RESULT_ERROR; 468 drm_gem_object_unreference_unlocked(gobj); 469 return r; 470 } 471 switch (args->operation) { 472 case RADEON_VA_MAP: 473 bo_va = radeon_bo_va(rbo, &fpriv->vm); 474 if (bo_va) { 475 args->operation = RADEON_VA_RESULT_VA_EXIST; 476 args->offset = bo_va->soffset; 477 goto out; 478 } 479 r = radeon_vm_bo_add(rdev, &fpriv->vm, rbo, 480 args->offset, args->flags); 481 break; 482 case RADEON_VA_UNMAP: 483 r = radeon_vm_bo_rmv(rdev, &fpriv->vm, rbo); 484 break; 485 default: 486 break; 487 } 488 args->operation = RADEON_VA_RESULT_OK; 489 if (r) { 490 args->operation = RADEON_VA_RESULT_ERROR; 491 } 492 out: 493 radeon_bo_unreserve(rbo); 494 drm_gem_object_unreference_unlocked(gobj); 495 return r; 496 } 497 498 int radeon_mode_dumb_create(struct drm_file *file_priv, 499 struct drm_device *dev, 500 struct drm_mode_create_dumb *args) 501 { 502 struct radeon_device *rdev = dev->dev_private; 503 struct drm_gem_object *gobj; 504 uint32_t handle; 505 int r; 506 507 args->pitch = radeon_align_pitch(rdev, args->width, args->bpp, 0) * ((args->bpp + 1) / 8); 508 args->size = args->pitch * args->height; 509 args->size = ALIGN(args->size, PAGE_SIZE); 510 511 r = radeon_gem_object_create(rdev, args->size, 0, 512 RADEON_GEM_DOMAIN_VRAM, 513 false, ttm_bo_type_device, 514 &gobj); 515 if (r) 516 return -ENOMEM; 517 518 r = drm_gem_handle_create(file_priv, gobj, &handle); 519 /* drop reference from allocate - handle holds it now */ 520 drm_gem_object_unreference_unlocked(gobj); 521 if (r) { 522 return r; 523 } 524 args->handle = handle; 525 return 0; 526 } 527 528 int radeon_mode_dumb_destroy(struct drm_file *file_priv, 529 struct drm_device *dev, 530 uint32_t handle) 531 { 532 return drm_gem_handle_delete(file_priv, handle); 533 } 534