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; 137 138 if (rdev->family < CHIP_CAYMAN) { 139 return; 140 } 141 142 if (radeon_bo_reserve(rbo, false)) { 143 dev_err(rdev->dev, "leaking bo va because we fail to reserve bo\n"); 144 return; 145 } 146 radeon_vm_bo_rmv(rdev, vm, rbo); 147 radeon_bo_unreserve(rbo); 148 } 149 150 static int radeon_gem_handle_lockup(struct radeon_device *rdev, int r) 151 { 152 if (r == -EDEADLK) { 153 r = radeon_gpu_reset(rdev); 154 if (!r) 155 r = -EAGAIN; 156 } 157 return r; 158 } 159 160 /* 161 * GEM ioctls. 162 */ 163 int radeon_gem_info_ioctl(struct drm_device *dev, void *data, 164 struct drm_file *filp) 165 { 166 struct radeon_device *rdev = dev->dev_private; 167 struct drm_radeon_gem_info *args = data; 168 struct ttm_mem_type_manager *man; 169 unsigned i; 170 171 man = &rdev->mman.bdev.man[TTM_PL_VRAM]; 172 173 args->vram_size = rdev->mc.real_vram_size; 174 args->vram_visible = (u64)man->size << PAGE_SHIFT; 175 if (rdev->stollen_vga_memory) 176 args->vram_visible -= radeon_bo_size(rdev->stollen_vga_memory); 177 args->vram_visible -= radeon_fbdev_total_size(rdev); 178 args->gart_size = rdev->mc.gtt_size - 4096 - RADEON_IB_POOL_SIZE*64*1024; 179 for(i = 0; i < RADEON_NUM_RINGS; ++i) 180 args->gart_size -= rdev->ring[i].ring_size; 181 return 0; 182 } 183 184 int radeon_gem_pread_ioctl(struct drm_device *dev, void *data, 185 struct drm_file *filp) 186 { 187 /* TODO: implement */ 188 DRM_ERROR("unimplemented %s\n", __func__); 189 return -ENOSYS; 190 } 191 192 int radeon_gem_pwrite_ioctl(struct drm_device *dev, void *data, 193 struct drm_file *filp) 194 { 195 /* TODO: implement */ 196 DRM_ERROR("unimplemented %s\n", __func__); 197 return -ENOSYS; 198 } 199 200 int radeon_gem_create_ioctl(struct drm_device *dev, void *data, 201 struct drm_file *filp) 202 { 203 struct radeon_device *rdev = dev->dev_private; 204 struct drm_radeon_gem_create *args = data; 205 struct drm_gem_object *gobj; 206 uint32_t handle; 207 int r; 208 209 down_read(&rdev->exclusive_lock); 210 /* create a gem object to contain this object in */ 211 args->size = roundup(args->size, PAGE_SIZE); 212 r = radeon_gem_object_create(rdev, args->size, args->alignment, 213 args->initial_domain, false, 214 false, &gobj); 215 if (r) { 216 up_read(&rdev->exclusive_lock); 217 r = radeon_gem_handle_lockup(rdev, r); 218 return r; 219 } 220 r = drm_gem_handle_create(filp, gobj, &handle); 221 /* drop reference from allocate - handle holds it now */ 222 drm_gem_object_unreference_unlocked(gobj); 223 if (r) { 224 up_read(&rdev->exclusive_lock); 225 r = radeon_gem_handle_lockup(rdev, r); 226 return r; 227 } 228 args->handle = handle; 229 up_read(&rdev->exclusive_lock); 230 return 0; 231 } 232 233 int radeon_gem_set_domain_ioctl(struct drm_device *dev, void *data, 234 struct drm_file *filp) 235 { 236 /* transition the BO to a domain - 237 * just validate the BO into a certain domain */ 238 struct radeon_device *rdev = dev->dev_private; 239 struct drm_radeon_gem_set_domain *args = data; 240 struct drm_gem_object *gobj; 241 struct radeon_bo *robj; 242 int r; 243 244 /* for now if someone requests domain CPU - 245 * just make sure the buffer is finished with */ 246 down_read(&rdev->exclusive_lock); 247 248 /* just do a BO wait for now */ 249 gobj = drm_gem_object_lookup(dev, filp, args->handle); 250 if (gobj == NULL) { 251 up_read(&rdev->exclusive_lock); 252 return -ENOENT; 253 } 254 robj = gem_to_radeon_bo(gobj); 255 256 r = radeon_gem_set_domain(gobj, args->read_domains, args->write_domain); 257 258 drm_gem_object_unreference_unlocked(gobj); 259 up_read(&rdev->exclusive_lock); 260 r = radeon_gem_handle_lockup(robj->rdev, r); 261 return r; 262 } 263 264 int radeon_mode_dumb_mmap(struct drm_file *filp, 265 struct drm_device *dev, 266 uint32_t handle, uint64_t *offset_p) 267 { 268 struct drm_gem_object *gobj; 269 struct radeon_bo *robj; 270 271 gobj = drm_gem_object_lookup(dev, filp, handle); 272 if (gobj == NULL) { 273 return -ENOENT; 274 } 275 robj = gem_to_radeon_bo(gobj); 276 *offset_p = radeon_bo_mmap_offset(robj); 277 drm_gem_object_unreference_unlocked(gobj); 278 return 0; 279 } 280 281 int radeon_gem_mmap_ioctl(struct drm_device *dev, void *data, 282 struct drm_file *filp) 283 { 284 struct drm_radeon_gem_mmap *args = data; 285 286 return radeon_mode_dumb_mmap(filp, dev, args->handle, &args->addr_ptr); 287 } 288 289 int radeon_gem_busy_ioctl(struct drm_device *dev, void *data, 290 struct drm_file *filp) 291 { 292 struct radeon_device *rdev = dev->dev_private; 293 struct drm_radeon_gem_busy *args = data; 294 struct drm_gem_object *gobj; 295 struct radeon_bo *robj; 296 int r; 297 uint32_t cur_placement = 0; 298 299 gobj = drm_gem_object_lookup(dev, filp, args->handle); 300 if (gobj == NULL) { 301 return -ENOENT; 302 } 303 robj = gem_to_radeon_bo(gobj); 304 r = radeon_bo_wait(robj, &cur_placement, true); 305 switch (cur_placement) { 306 case TTM_PL_VRAM: 307 args->domain = RADEON_GEM_DOMAIN_VRAM; 308 break; 309 case TTM_PL_TT: 310 args->domain = RADEON_GEM_DOMAIN_GTT; 311 break; 312 case TTM_PL_SYSTEM: 313 args->domain = RADEON_GEM_DOMAIN_CPU; 314 default: 315 break; 316 } 317 drm_gem_object_unreference_unlocked(gobj); 318 r = radeon_gem_handle_lockup(rdev, r); 319 return r; 320 } 321 322 int radeon_gem_wait_idle_ioctl(struct drm_device *dev, void *data, 323 struct drm_file *filp) 324 { 325 struct radeon_device *rdev = dev->dev_private; 326 struct drm_radeon_gem_wait_idle *args = data; 327 struct drm_gem_object *gobj; 328 struct radeon_bo *robj; 329 int r; 330 331 gobj = drm_gem_object_lookup(dev, filp, args->handle); 332 if (gobj == NULL) { 333 return -ENOENT; 334 } 335 robj = gem_to_radeon_bo(gobj); 336 r = radeon_bo_wait(robj, NULL, false); 337 /* callback hw specific functions if any */ 338 if (rdev->asic->ioctl_wait_idle) 339 robj->rdev->asic->ioctl_wait_idle(rdev, robj); 340 drm_gem_object_unreference_unlocked(gobj); 341 r = radeon_gem_handle_lockup(rdev, r); 342 return r; 343 } 344 345 int radeon_gem_set_tiling_ioctl(struct drm_device *dev, void *data, 346 struct drm_file *filp) 347 { 348 struct drm_radeon_gem_set_tiling *args = data; 349 struct drm_gem_object *gobj; 350 struct radeon_bo *robj; 351 int r = 0; 352 353 DRM_DEBUG("%d \n", args->handle); 354 gobj = drm_gem_object_lookup(dev, filp, args->handle); 355 if (gobj == NULL) 356 return -ENOENT; 357 robj = gem_to_radeon_bo(gobj); 358 r = radeon_bo_set_tiling_flags(robj, args->tiling_flags, args->pitch); 359 drm_gem_object_unreference_unlocked(gobj); 360 return r; 361 } 362 363 int radeon_gem_get_tiling_ioctl(struct drm_device *dev, void *data, 364 struct drm_file *filp) 365 { 366 struct drm_radeon_gem_get_tiling *args = data; 367 struct drm_gem_object *gobj; 368 struct radeon_bo *rbo; 369 int r = 0; 370 371 DRM_DEBUG("\n"); 372 gobj = drm_gem_object_lookup(dev, filp, args->handle); 373 if (gobj == NULL) 374 return -ENOENT; 375 rbo = gem_to_radeon_bo(gobj); 376 r = radeon_bo_reserve(rbo, false); 377 if (unlikely(r != 0)) 378 goto out; 379 radeon_bo_get_tiling_flags(rbo, &args->tiling_flags, &args->pitch); 380 radeon_bo_unreserve(rbo); 381 out: 382 drm_gem_object_unreference_unlocked(gobj); 383 return r; 384 } 385 386 int radeon_gem_va_ioctl(struct drm_device *dev, void *data, 387 struct drm_file *filp) 388 { 389 struct drm_radeon_gem_va *args = data; 390 struct drm_gem_object *gobj; 391 struct radeon_device *rdev = dev->dev_private; 392 struct radeon_fpriv *fpriv = filp->driver_priv; 393 struct radeon_bo *rbo; 394 struct radeon_bo_va *bo_va; 395 u32 invalid_flags; 396 int r = 0; 397 398 if (!rdev->vm_manager.enabled) { 399 args->operation = RADEON_VA_RESULT_ERROR; 400 return -ENOTTY; 401 } 402 403 /* !! DONT REMOVE !! 404 * We don't support vm_id yet, to be sure we don't have have broken 405 * userspace, reject anyone trying to use non 0 value thus moving 406 * forward we can use those fields without breaking existant userspace 407 */ 408 if (args->vm_id) { 409 args->operation = RADEON_VA_RESULT_ERROR; 410 return -EINVAL; 411 } 412 413 if (args->offset < RADEON_VA_RESERVED_SIZE) { 414 dev_err(&dev->pdev->dev, 415 "offset 0x%lX is in reserved area 0x%X\n", 416 (unsigned long)args->offset, 417 RADEON_VA_RESERVED_SIZE); 418 args->operation = RADEON_VA_RESULT_ERROR; 419 return -EINVAL; 420 } 421 422 /* don't remove, we need to enforce userspace to set the snooped flag 423 * otherwise we will endup with broken userspace and we won't be able 424 * to enable this feature without adding new interface 425 */ 426 invalid_flags = RADEON_VM_PAGE_VALID | RADEON_VM_PAGE_SYSTEM; 427 if ((args->flags & invalid_flags)) { 428 dev_err(&dev->pdev->dev, "invalid flags 0x%08X vs 0x%08X\n", 429 args->flags, invalid_flags); 430 args->operation = RADEON_VA_RESULT_ERROR; 431 return -EINVAL; 432 } 433 if (!(args->flags & RADEON_VM_PAGE_SNOOPED)) { 434 dev_err(&dev->pdev->dev, "only supported snooped mapping for now\n"); 435 args->operation = RADEON_VA_RESULT_ERROR; 436 return -EINVAL; 437 } 438 439 switch (args->operation) { 440 case RADEON_VA_MAP: 441 case RADEON_VA_UNMAP: 442 break; 443 default: 444 dev_err(&dev->pdev->dev, "unsupported operation %d\n", 445 args->operation); 446 args->operation = RADEON_VA_RESULT_ERROR; 447 return -EINVAL; 448 } 449 450 gobj = drm_gem_object_lookup(dev, filp, args->handle); 451 if (gobj == NULL) { 452 args->operation = RADEON_VA_RESULT_ERROR; 453 return -ENOENT; 454 } 455 rbo = gem_to_radeon_bo(gobj); 456 r = radeon_bo_reserve(rbo, false); 457 if (r) { 458 args->operation = RADEON_VA_RESULT_ERROR; 459 drm_gem_object_unreference_unlocked(gobj); 460 return r; 461 } 462 switch (args->operation) { 463 case RADEON_VA_MAP: 464 bo_va = radeon_bo_va(rbo, &fpriv->vm); 465 if (bo_va) { 466 args->operation = RADEON_VA_RESULT_VA_EXIST; 467 args->offset = bo_va->soffset; 468 goto out; 469 } 470 r = radeon_vm_bo_add(rdev, &fpriv->vm, rbo, 471 args->offset, args->flags); 472 break; 473 case RADEON_VA_UNMAP: 474 r = radeon_vm_bo_rmv(rdev, &fpriv->vm, rbo); 475 break; 476 default: 477 break; 478 } 479 args->operation = RADEON_VA_RESULT_OK; 480 if (r) { 481 args->operation = RADEON_VA_RESULT_ERROR; 482 } 483 out: 484 radeon_bo_unreserve(rbo); 485 drm_gem_object_unreference_unlocked(gobj); 486 return r; 487 } 488 489 int radeon_mode_dumb_create(struct drm_file *file_priv, 490 struct drm_device *dev, 491 struct drm_mode_create_dumb *args) 492 { 493 struct radeon_device *rdev = dev->dev_private; 494 struct drm_gem_object *gobj; 495 uint32_t handle; 496 int r; 497 498 args->pitch = radeon_align_pitch(rdev, args->width, args->bpp, 0) * ((args->bpp + 1) / 8); 499 args->size = args->pitch * args->height; 500 args->size = ALIGN(args->size, PAGE_SIZE); 501 502 r = radeon_gem_object_create(rdev, args->size, 0, 503 RADEON_GEM_DOMAIN_VRAM, 504 false, ttm_bo_type_device, 505 &gobj); 506 if (r) 507 return -ENOMEM; 508 509 r = drm_gem_handle_create(file_priv, gobj, &handle); 510 /* drop reference from allocate - handle holds it now */ 511 drm_gem_object_unreference_unlocked(gobj); 512 if (r) { 513 return r; 514 } 515 args->handle = handle; 516 return 0; 517 } 518 519 int radeon_mode_dumb_destroy(struct drm_file *file_priv, 520 struct drm_device *dev, 521 uint32_t handle) 522 { 523 return drm_gem_handle_delete(file_priv, handle); 524 } 525