Dave Airlie | 312fec1 | 2012-02-29 13:40:04 +0000 | [diff] [blame] | 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 |
| 6 | * "Software"), to deal in the Software without restriction, including |
| 7 | * without limitation the rights to use, copy, modify, merge, publish, |
| 8 | * distribute, sub license, and/or sell copies of the Software, and to |
| 9 | * permit persons to whom the Software is furnished to do so, subject to |
| 10 | * the following conditions: |
| 11 | * |
| 12 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 13 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 14 | * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL |
| 15 | * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, |
| 16 | * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR |
| 17 | * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE |
| 18 | * USE OR OTHER DEALINGS IN THE SOFTWARE. |
| 19 | * |
| 20 | * The above copyright notice and this permission notice (including the |
| 21 | * next paragraph) shall be included in all copies or substantial portions |
| 22 | * of the Software. |
| 23 | * |
| 24 | */ |
| 25 | /* |
| 26 | * Authors: Dave Airlie <airlied@redhat.com> |
| 27 | */ |
David Howells | 760285e | 2012-10-02 18:01:07 +0100 | [diff] [blame] | 28 | #include <drm/drmP.h> |
Dave Airlie | 312fec1 | 2012-02-29 13:40:04 +0000 | [diff] [blame] | 29 | #include "ast_drv.h" |
| 30 | #include <ttm/ttm_page_alloc.h> |
| 31 | |
| 32 | static inline struct ast_private * |
| 33 | ast_bdev(struct ttm_bo_device *bd) |
| 34 | { |
| 35 | return container_of(bd, struct ast_private, ttm.bdev); |
| 36 | } |
| 37 | |
| 38 | static int |
| 39 | ast_ttm_mem_global_init(struct drm_global_reference *ref) |
| 40 | { |
| 41 | return ttm_mem_global_init(ref->object); |
| 42 | } |
| 43 | |
| 44 | static void |
| 45 | ast_ttm_mem_global_release(struct drm_global_reference *ref) |
| 46 | { |
| 47 | ttm_mem_global_release(ref->object); |
| 48 | } |
| 49 | |
| 50 | static int ast_ttm_global_init(struct ast_private *ast) |
| 51 | { |
| 52 | struct drm_global_reference *global_ref; |
| 53 | int r; |
| 54 | |
| 55 | global_ref = &ast->ttm.mem_global_ref; |
| 56 | global_ref->global_type = DRM_GLOBAL_TTM_MEM; |
| 57 | global_ref->size = sizeof(struct ttm_mem_global); |
| 58 | global_ref->init = &ast_ttm_mem_global_init; |
| 59 | global_ref->release = &ast_ttm_mem_global_release; |
| 60 | r = drm_global_item_ref(global_ref); |
| 61 | if (r != 0) { |
| 62 | DRM_ERROR("Failed setting up TTM memory accounting " |
| 63 | "subsystem.\n"); |
| 64 | return r; |
| 65 | } |
| 66 | |
| 67 | ast->ttm.bo_global_ref.mem_glob = |
| 68 | ast->ttm.mem_global_ref.object; |
| 69 | global_ref = &ast->ttm.bo_global_ref.ref; |
| 70 | global_ref->global_type = DRM_GLOBAL_TTM_BO; |
| 71 | global_ref->size = sizeof(struct ttm_bo_global); |
| 72 | global_ref->init = &ttm_bo_global_init; |
| 73 | global_ref->release = &ttm_bo_global_release; |
| 74 | r = drm_global_item_ref(global_ref); |
| 75 | if (r != 0) { |
| 76 | DRM_ERROR("Failed setting up TTM BO subsystem.\n"); |
| 77 | drm_global_item_unref(&ast->ttm.mem_global_ref); |
| 78 | return r; |
| 79 | } |
| 80 | return 0; |
| 81 | } |
| 82 | |
Rashika | a1537f3 | 2014-01-06 20:27:48 +0530 | [diff] [blame] | 83 | static void |
Dave Airlie | 312fec1 | 2012-02-29 13:40:04 +0000 | [diff] [blame] | 84 | ast_ttm_global_release(struct ast_private *ast) |
| 85 | { |
| 86 | if (ast->ttm.mem_global_ref.release == NULL) |
| 87 | return; |
| 88 | |
| 89 | drm_global_item_unref(&ast->ttm.bo_global_ref.ref); |
| 90 | drm_global_item_unref(&ast->ttm.mem_global_ref); |
| 91 | ast->ttm.mem_global_ref.release = NULL; |
| 92 | } |
| 93 | |
| 94 | |
| 95 | static void ast_bo_ttm_destroy(struct ttm_buffer_object *tbo) |
| 96 | { |
| 97 | struct ast_bo *bo; |
| 98 | |
| 99 | bo = container_of(tbo, struct ast_bo, bo); |
| 100 | |
| 101 | drm_gem_object_release(&bo->gem); |
| 102 | kfree(bo); |
| 103 | } |
| 104 | |
Rashika | a1537f3 | 2014-01-06 20:27:48 +0530 | [diff] [blame] | 105 | static bool ast_ttm_bo_is_ast_bo(struct ttm_buffer_object *bo) |
Dave Airlie | 312fec1 | 2012-02-29 13:40:04 +0000 | [diff] [blame] | 106 | { |
| 107 | if (bo->destroy == &ast_bo_ttm_destroy) |
| 108 | return true; |
| 109 | return false; |
| 110 | } |
| 111 | |
| 112 | static int |
| 113 | ast_bo_init_mem_type(struct ttm_bo_device *bdev, uint32_t type, |
| 114 | struct ttm_mem_type_manager *man) |
| 115 | { |
| 116 | switch (type) { |
| 117 | case TTM_PL_SYSTEM: |
| 118 | man->flags = TTM_MEMTYPE_FLAG_MAPPABLE; |
| 119 | man->available_caching = TTM_PL_MASK_CACHING; |
| 120 | man->default_caching = TTM_PL_FLAG_CACHED; |
| 121 | break; |
| 122 | case TTM_PL_VRAM: |
| 123 | man->func = &ttm_bo_manager_func; |
| 124 | man->flags = TTM_MEMTYPE_FLAG_FIXED | |
| 125 | TTM_MEMTYPE_FLAG_MAPPABLE; |
| 126 | man->available_caching = TTM_PL_FLAG_UNCACHED | |
| 127 | TTM_PL_FLAG_WC; |
| 128 | man->default_caching = TTM_PL_FLAG_WC; |
| 129 | break; |
| 130 | default: |
| 131 | DRM_ERROR("Unsupported memory type %u\n", (unsigned)type); |
| 132 | return -EINVAL; |
| 133 | } |
| 134 | return 0; |
| 135 | } |
| 136 | |
| 137 | static void |
| 138 | ast_bo_evict_flags(struct ttm_buffer_object *bo, struct ttm_placement *pl) |
| 139 | { |
| 140 | struct ast_bo *astbo = ast_bo(bo); |
| 141 | |
| 142 | if (!ast_ttm_bo_is_ast_bo(bo)) |
| 143 | return; |
| 144 | |
| 145 | ast_ttm_placement(astbo, TTM_PL_FLAG_SYSTEM); |
| 146 | *pl = astbo->placement; |
| 147 | } |
| 148 | |
| 149 | static int ast_bo_verify_access(struct ttm_buffer_object *bo, struct file *filp) |
| 150 | { |
David Herrmann | acb4652 | 2013-08-25 18:28:59 +0200 | [diff] [blame] | 151 | struct ast_bo *astbo = ast_bo(bo); |
| 152 | |
| 153 | return drm_vma_node_verify_access(&astbo->gem.vma_node, filp); |
Dave Airlie | 312fec1 | 2012-02-29 13:40:04 +0000 | [diff] [blame] | 154 | } |
| 155 | |
| 156 | static int ast_ttm_io_mem_reserve(struct ttm_bo_device *bdev, |
| 157 | struct ttm_mem_reg *mem) |
| 158 | { |
| 159 | struct ttm_mem_type_manager *man = &bdev->man[mem->mem_type]; |
| 160 | struct ast_private *ast = ast_bdev(bdev); |
| 161 | |
| 162 | mem->bus.addr = NULL; |
| 163 | mem->bus.offset = 0; |
| 164 | mem->bus.size = mem->num_pages << PAGE_SHIFT; |
| 165 | mem->bus.base = 0; |
| 166 | mem->bus.is_iomem = false; |
| 167 | if (!(man->flags & TTM_MEMTYPE_FLAG_MAPPABLE)) |
| 168 | return -EINVAL; |
| 169 | switch (mem->mem_type) { |
| 170 | case TTM_PL_SYSTEM: |
| 171 | /* system memory */ |
| 172 | return 0; |
| 173 | case TTM_PL_VRAM: |
| 174 | mem->bus.offset = mem->start << PAGE_SHIFT; |
| 175 | mem->bus.base = pci_resource_start(ast->dev->pdev, 0); |
| 176 | mem->bus.is_iomem = true; |
| 177 | break; |
| 178 | default: |
| 179 | return -EINVAL; |
| 180 | break; |
| 181 | } |
| 182 | return 0; |
| 183 | } |
| 184 | |
| 185 | static void ast_ttm_io_mem_free(struct ttm_bo_device *bdev, struct ttm_mem_reg *mem) |
| 186 | { |
| 187 | } |
| 188 | |
| 189 | static int ast_bo_move(struct ttm_buffer_object *bo, |
| 190 | bool evict, bool interruptible, |
Maarten Lankhorst | 97a875c | 2012-11-28 11:25:44 +0000 | [diff] [blame] | 191 | bool no_wait_gpu, |
Dave Airlie | 312fec1 | 2012-02-29 13:40:04 +0000 | [diff] [blame] | 192 | struct ttm_mem_reg *new_mem) |
| 193 | { |
| 194 | int r; |
Maarten Lankhorst | 97a875c | 2012-11-28 11:25:44 +0000 | [diff] [blame] | 195 | r = ttm_bo_move_memcpy(bo, evict, no_wait_gpu, new_mem); |
Dave Airlie | 312fec1 | 2012-02-29 13:40:04 +0000 | [diff] [blame] | 196 | return r; |
| 197 | } |
| 198 | |
| 199 | |
| 200 | static void ast_ttm_backend_destroy(struct ttm_tt *tt) |
| 201 | { |
| 202 | ttm_tt_fini(tt); |
| 203 | kfree(tt); |
| 204 | } |
| 205 | |
| 206 | static struct ttm_backend_func ast_tt_backend_func = { |
| 207 | .destroy = &ast_ttm_backend_destroy, |
| 208 | }; |
| 209 | |
| 210 | |
Rashika | a1537f3 | 2014-01-06 20:27:48 +0530 | [diff] [blame] | 211 | static struct ttm_tt *ast_ttm_tt_create(struct ttm_bo_device *bdev, |
Dave Airlie | 312fec1 | 2012-02-29 13:40:04 +0000 | [diff] [blame] | 212 | unsigned long size, uint32_t page_flags, |
| 213 | struct page *dummy_read_page) |
| 214 | { |
| 215 | struct ttm_tt *tt; |
| 216 | |
| 217 | tt = kzalloc(sizeof(struct ttm_tt), GFP_KERNEL); |
| 218 | if (tt == NULL) |
| 219 | return NULL; |
| 220 | tt->func = &ast_tt_backend_func; |
| 221 | if (ttm_tt_init(tt, bdev, size, page_flags, dummy_read_page)) { |
| 222 | kfree(tt); |
| 223 | return NULL; |
| 224 | } |
| 225 | return tt; |
| 226 | } |
| 227 | |
| 228 | static int ast_ttm_tt_populate(struct ttm_tt *ttm) |
| 229 | { |
| 230 | return ttm_pool_populate(ttm); |
| 231 | } |
| 232 | |
| 233 | static void ast_ttm_tt_unpopulate(struct ttm_tt *ttm) |
| 234 | { |
| 235 | ttm_pool_unpopulate(ttm); |
| 236 | } |
| 237 | |
| 238 | struct ttm_bo_driver ast_bo_driver = { |
| 239 | .ttm_tt_create = ast_ttm_tt_create, |
| 240 | .ttm_tt_populate = ast_ttm_tt_populate, |
| 241 | .ttm_tt_unpopulate = ast_ttm_tt_unpopulate, |
| 242 | .init_mem_type = ast_bo_init_mem_type, |
| 243 | .evict_flags = ast_bo_evict_flags, |
| 244 | .move = ast_bo_move, |
| 245 | .verify_access = ast_bo_verify_access, |
| 246 | .io_mem_reserve = &ast_ttm_io_mem_reserve, |
| 247 | .io_mem_free = &ast_ttm_io_mem_free, |
| 248 | }; |
| 249 | |
| 250 | int ast_mm_init(struct ast_private *ast) |
| 251 | { |
| 252 | int ret; |
| 253 | struct drm_device *dev = ast->dev; |
| 254 | struct ttm_bo_device *bdev = &ast->ttm.bdev; |
| 255 | |
| 256 | ret = ast_ttm_global_init(ast); |
| 257 | if (ret) |
| 258 | return ret; |
| 259 | |
| 260 | ret = ttm_bo_device_init(&ast->ttm.bdev, |
| 261 | ast->ttm.bo_global_ref.ref.object, |
David Herrmann | 44d847b | 2013-08-13 19:10:30 +0200 | [diff] [blame] | 262 | &ast_bo_driver, |
| 263 | dev->anon_inode->i_mapping, |
| 264 | DRM_FILE_PAGE_OFFSET, |
Dave Airlie | 312fec1 | 2012-02-29 13:40:04 +0000 | [diff] [blame] | 265 | true); |
| 266 | if (ret) { |
| 267 | DRM_ERROR("Error initialising bo driver; %d\n", ret); |
| 268 | return ret; |
| 269 | } |
| 270 | |
| 271 | ret = ttm_bo_init_mm(bdev, TTM_PL_VRAM, |
| 272 | ast->vram_size >> PAGE_SHIFT); |
| 273 | if (ret) { |
| 274 | DRM_ERROR("Failed ttm VRAM init: %d\n", ret); |
| 275 | return ret; |
| 276 | } |
| 277 | |
Andy Lutomirski | 247d36d | 2013-05-13 23:58:41 +0000 | [diff] [blame] | 278 | ast->fb_mtrr = arch_phys_wc_add(pci_resource_start(dev->pdev, 0), |
| 279 | pci_resource_len(dev->pdev, 0)); |
Dave Airlie | 312fec1 | 2012-02-29 13:40:04 +0000 | [diff] [blame] | 280 | |
| 281 | return 0; |
| 282 | } |
| 283 | |
| 284 | void ast_mm_fini(struct ast_private *ast) |
| 285 | { |
Dave Airlie | 312fec1 | 2012-02-29 13:40:04 +0000 | [diff] [blame] | 286 | ttm_bo_device_release(&ast->ttm.bdev); |
| 287 | |
| 288 | ast_ttm_global_release(ast); |
| 289 | |
Andy Lutomirski | 247d36d | 2013-05-13 23:58:41 +0000 | [diff] [blame] | 290 | arch_phys_wc_del(ast->fb_mtrr); |
Dave Airlie | 312fec1 | 2012-02-29 13:40:04 +0000 | [diff] [blame] | 291 | } |
| 292 | |
| 293 | void ast_ttm_placement(struct ast_bo *bo, int domain) |
| 294 | { |
| 295 | u32 c = 0; |
Christian König | f1217ed | 2014-08-27 13:16:04 +0200 | [diff] [blame] | 296 | unsigned i; |
| 297 | |
Dave Airlie | 312fec1 | 2012-02-29 13:40:04 +0000 | [diff] [blame] | 298 | bo->placement.placement = bo->placements; |
| 299 | bo->placement.busy_placement = bo->placements; |
| 300 | if (domain & TTM_PL_FLAG_VRAM) |
Christian König | f1217ed | 2014-08-27 13:16:04 +0200 | [diff] [blame] | 301 | bo->placements[c++].flags = TTM_PL_FLAG_WC | TTM_PL_FLAG_UNCACHED | TTM_PL_FLAG_VRAM; |
Dave Airlie | 312fec1 | 2012-02-29 13:40:04 +0000 | [diff] [blame] | 302 | if (domain & TTM_PL_FLAG_SYSTEM) |
Dave Airlie | a9d6dd2 | 2014-09-12 14:32:40 +1000 | [diff] [blame] | 303 | bo->placements[c++].flags = TTM_PL_FLAG_CACHED | TTM_PL_FLAG_SYSTEM; |
Dave Airlie | 312fec1 | 2012-02-29 13:40:04 +0000 | [diff] [blame] | 304 | if (!c) |
Dave Airlie | a9d6dd2 | 2014-09-12 14:32:40 +1000 | [diff] [blame] | 305 | bo->placements[c++].flags = TTM_PL_FLAG_CACHED | TTM_PL_FLAG_SYSTEM; |
Dave Airlie | 312fec1 | 2012-02-29 13:40:04 +0000 | [diff] [blame] | 306 | bo->placement.num_placement = c; |
| 307 | bo->placement.num_busy_placement = c; |
Christian König | f1217ed | 2014-08-27 13:16:04 +0200 | [diff] [blame] | 308 | for (i = 0; i < c; ++i) { |
| 309 | bo->placements[i].fpfn = 0; |
| 310 | bo->placements[i].lpfn = 0; |
| 311 | } |
Dave Airlie | 312fec1 | 2012-02-29 13:40:04 +0000 | [diff] [blame] | 312 | } |
| 313 | |
Dave Airlie | 312fec1 | 2012-02-29 13:40:04 +0000 | [diff] [blame] | 314 | int ast_bo_create(struct drm_device *dev, int size, int align, |
| 315 | uint32_t flags, struct ast_bo **pastbo) |
| 316 | { |
| 317 | struct ast_private *ast = dev->dev_private; |
| 318 | struct ast_bo *astbo; |
| 319 | size_t acc_size; |
| 320 | int ret; |
| 321 | |
| 322 | astbo = kzalloc(sizeof(struct ast_bo), GFP_KERNEL); |
| 323 | if (!astbo) |
| 324 | return -ENOMEM; |
| 325 | |
| 326 | ret = drm_gem_object_init(dev, &astbo->gem, size); |
| 327 | if (ret) { |
| 328 | kfree(astbo); |
| 329 | return ret; |
| 330 | } |
| 331 | |
Dave Airlie | 312fec1 | 2012-02-29 13:40:04 +0000 | [diff] [blame] | 332 | astbo->bo.bdev = &ast->ttm.bdev; |
| 333 | |
| 334 | ast_ttm_placement(astbo, TTM_PL_FLAG_VRAM | TTM_PL_FLAG_SYSTEM); |
| 335 | |
| 336 | acc_size = ttm_bo_dma_acc_size(&ast->ttm.bdev, size, |
| 337 | sizeof(struct ast_bo)); |
| 338 | |
| 339 | ret = ttm_bo_init(&ast->ttm.bdev, &astbo->bo, size, |
| 340 | ttm_bo_type_device, &astbo->placement, |
Marcin Slusarz | 0b91c4a | 2012-11-06 21:49:51 +0000 | [diff] [blame] | 341 | align >> PAGE_SHIFT, false, NULL, acc_size, |
Maarten Lankhorst | f4f4e3e | 2014-01-09 11:03:15 +0100 | [diff] [blame] | 342 | NULL, NULL, ast_bo_ttm_destroy); |
Dave Airlie | 312fec1 | 2012-02-29 13:40:04 +0000 | [diff] [blame] | 343 | if (ret) |
| 344 | return ret; |
| 345 | |
| 346 | *pastbo = astbo; |
| 347 | return 0; |
| 348 | } |
| 349 | |
| 350 | static inline u64 ast_bo_gpu_offset(struct ast_bo *bo) |
| 351 | { |
| 352 | return bo->bo.offset; |
| 353 | } |
| 354 | |
| 355 | int ast_bo_pin(struct ast_bo *bo, u32 pl_flag, u64 *gpu_addr) |
| 356 | { |
| 357 | int i, ret; |
| 358 | |
| 359 | if (bo->pin_count) { |
| 360 | bo->pin_count++; |
| 361 | if (gpu_addr) |
| 362 | *gpu_addr = ast_bo_gpu_offset(bo); |
| 363 | } |
| 364 | |
| 365 | ast_ttm_placement(bo, pl_flag); |
| 366 | for (i = 0; i < bo->placement.num_placement; i++) |
Christian König | f1217ed | 2014-08-27 13:16:04 +0200 | [diff] [blame] | 367 | bo->placements[i].flags |= TTM_PL_FLAG_NO_EVICT; |
Maarten Lankhorst | 97a875c | 2012-11-28 11:25:44 +0000 | [diff] [blame] | 368 | ret = ttm_bo_validate(&bo->bo, &bo->placement, false, false); |
Dave Airlie | 312fec1 | 2012-02-29 13:40:04 +0000 | [diff] [blame] | 369 | if (ret) |
| 370 | return ret; |
| 371 | |
| 372 | bo->pin_count = 1; |
| 373 | if (gpu_addr) |
| 374 | *gpu_addr = ast_bo_gpu_offset(bo); |
| 375 | return 0; |
| 376 | } |
| 377 | |
| 378 | int ast_bo_unpin(struct ast_bo *bo) |
| 379 | { |
| 380 | int i, ret; |
| 381 | if (!bo->pin_count) { |
| 382 | DRM_ERROR("unpin bad %p\n", bo); |
| 383 | return 0; |
| 384 | } |
| 385 | bo->pin_count--; |
| 386 | if (bo->pin_count) |
| 387 | return 0; |
| 388 | |
| 389 | for (i = 0; i < bo->placement.num_placement ; i++) |
Christian König | f1217ed | 2014-08-27 13:16:04 +0200 | [diff] [blame] | 390 | bo->placements[i].flags &= ~TTM_PL_FLAG_NO_EVICT; |
Maarten Lankhorst | 97a875c | 2012-11-28 11:25:44 +0000 | [diff] [blame] | 391 | ret = ttm_bo_validate(&bo->bo, &bo->placement, false, false); |
Dave Airlie | 312fec1 | 2012-02-29 13:40:04 +0000 | [diff] [blame] | 392 | if (ret) |
| 393 | return ret; |
| 394 | |
| 395 | return 0; |
| 396 | } |
| 397 | |
| 398 | int ast_bo_push_sysram(struct ast_bo *bo) |
| 399 | { |
| 400 | int i, ret; |
| 401 | if (!bo->pin_count) { |
| 402 | DRM_ERROR("unpin bad %p\n", bo); |
| 403 | return 0; |
| 404 | } |
| 405 | bo->pin_count--; |
| 406 | if (bo->pin_count) |
| 407 | return 0; |
| 408 | |
| 409 | if (bo->kmap.virtual) |
| 410 | ttm_bo_kunmap(&bo->kmap); |
| 411 | |
| 412 | ast_ttm_placement(bo, TTM_PL_FLAG_SYSTEM); |
| 413 | for (i = 0; i < bo->placement.num_placement ; i++) |
Christian König | f1217ed | 2014-08-27 13:16:04 +0200 | [diff] [blame] | 414 | bo->placements[i].flags |= TTM_PL_FLAG_NO_EVICT; |
Dave Airlie | 312fec1 | 2012-02-29 13:40:04 +0000 | [diff] [blame] | 415 | |
Maarten Lankhorst | 97a875c | 2012-11-28 11:25:44 +0000 | [diff] [blame] | 416 | ret = ttm_bo_validate(&bo->bo, &bo->placement, false, false); |
Dave Airlie | 312fec1 | 2012-02-29 13:40:04 +0000 | [diff] [blame] | 417 | if (ret) { |
| 418 | DRM_ERROR("pushing to VRAM failed\n"); |
| 419 | return ret; |
| 420 | } |
| 421 | return 0; |
| 422 | } |
| 423 | |
| 424 | int ast_mmap(struct file *filp, struct vm_area_struct *vma) |
| 425 | { |
| 426 | struct drm_file *file_priv; |
| 427 | struct ast_private *ast; |
| 428 | |
| 429 | if (unlikely(vma->vm_pgoff < DRM_FILE_PAGE_OFFSET)) |
Daniel Vetter | 884c6da | 2014-09-23 15:46:47 +0200 | [diff] [blame] | 430 | return -EINVAL; |
Dave Airlie | 312fec1 | 2012-02-29 13:40:04 +0000 | [diff] [blame] | 431 | |
| 432 | file_priv = filp->private_data; |
| 433 | ast = file_priv->minor->dev->dev_private; |
| 434 | return ttm_bo_mmap(filp, vma, &ast->ttm.bdev); |
| 435 | } |