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 #ifndef __AMDGPU_OBJECT_H__ 29 #define __AMDGPU_OBJECT_H__ 30 31 #include <drm/amdgpu_drm.h> 32 #include "amdgpu.h" 33 #include "amdgpu_res_cursor.h" 34 35 #ifdef CONFIG_MMU_NOTIFIER 36 #include <linux/mmu_notifier.h> 37 #endif 38 39 #define AMDGPU_BO_INVALID_OFFSET LONG_MAX 40 #define AMDGPU_BO_MAX_PLACEMENTS 3 41 42 /* BO flag to indicate a KFD userptr BO */ 43 #define AMDGPU_AMDKFD_CREATE_USERPTR_BO (1ULL << 63) 44 45 #define to_amdgpu_bo_user(abo) container_of((abo), struct amdgpu_bo_user, bo) 46 #define to_amdgpu_bo_vm(abo) container_of((abo), struct amdgpu_bo_vm, bo) 47 48 struct amdgpu_bo_param { 49 unsigned long size; 50 int byte_align; 51 u32 bo_ptr_size; 52 u32 domain; 53 u32 preferred_domain; 54 u64 flags; 55 enum ttm_bo_type type; 56 bool no_wait_gpu; 57 struct dma_resv *resv; 58 void (*destroy)(struct ttm_buffer_object *bo); 59 /* memory partition number plus 1, 0 means any partition */ 60 int8_t mem_id_plus1; 61 }; 62 63 /* bo virtual addresses in a vm */ 64 struct amdgpu_bo_va_mapping { 65 struct amdgpu_bo_va *bo_va; 66 struct list_head list; 67 struct rb_node rb; 68 uint64_t start; 69 uint64_t last; 70 uint64_t __subtree_last; 71 uint64_t offset; 72 uint64_t flags; 73 }; 74 75 /* User space allocated BO in a VM */ 76 struct amdgpu_bo_va { 77 struct amdgpu_vm_bo_base base; 78 79 /* protected by bo being reserved */ 80 unsigned ref_count; 81 82 /* all other members protected by the VM PD being reserved */ 83 struct dma_fence *last_pt_update; 84 85 /* mappings for this bo_va */ 86 struct list_head invalids; 87 struct list_head valids; 88 89 /* If the mappings are cleared or filled */ 90 bool cleared; 91 92 bool is_xgmi; 93 }; 94 95 struct amdgpu_bo { 96 /* Protected by tbo.reserved */ 97 u32 preferred_domains; 98 u32 allowed_domains; 99 struct ttm_place placements[AMDGPU_BO_MAX_PLACEMENTS]; 100 struct ttm_placement placement; 101 struct ttm_buffer_object tbo; 102 struct ttm_bo_kmap_obj kmap; 103 u64 flags; 104 /* per VM structure for page tables and with virtual addresses */ 105 struct amdgpu_vm_bo_base *vm_bo; 106 /* Constant after initialization */ 107 struct amdgpu_bo *parent; 108 109 #ifdef CONFIG_MMU_NOTIFIER 110 struct mmu_interval_notifier notifier; 111 #endif 112 struct kgd_mem *kfd_bo; 113 114 /* memory partition number, -1 means any partition */ 115 int8_t mem_id; 116 }; 117 118 struct amdgpu_bo_user { 119 struct amdgpu_bo bo; 120 u64 tiling_flags; 121 u64 metadata_flags; 122 void *metadata; 123 u32 metadata_size; 124 125 }; 126 127 struct amdgpu_bo_vm { 128 struct amdgpu_bo bo; 129 struct amdgpu_bo *shadow; 130 struct list_head shadow_list; 131 struct amdgpu_vm_bo_base entries[]; 132 }; 133 134 struct amdgpu_mem_stats { 135 /* current VRAM usage, includes visible VRAM */ 136 uint64_t vram; 137 /* current visible VRAM usage */ 138 uint64_t visible_vram; 139 /* current GTT usage */ 140 uint64_t gtt; 141 /* current system memory usage */ 142 uint64_t cpu; 143 /* sum of evicted buffers, includes visible VRAM */ 144 uint64_t evicted_vram; 145 /* sum of evicted buffers due to CPU access */ 146 uint64_t evicted_visible_vram; 147 /* how much userspace asked for, includes vis.VRAM */ 148 uint64_t requested_vram; 149 /* how much userspace asked for */ 150 uint64_t requested_visible_vram; 151 /* how much userspace asked for */ 152 uint64_t requested_gtt; 153 }; 154 155 static inline struct amdgpu_bo *ttm_to_amdgpu_bo(struct ttm_buffer_object *tbo) 156 { 157 return container_of(tbo, struct amdgpu_bo, tbo); 158 } 159 160 /** 161 * amdgpu_mem_type_to_domain - return domain corresponding to mem_type 162 * @mem_type: ttm memory type 163 * 164 * Returns corresponding domain of the ttm mem_type 165 */ 166 static inline unsigned amdgpu_mem_type_to_domain(u32 mem_type) 167 { 168 switch (mem_type) { 169 case TTM_PL_VRAM: 170 return AMDGPU_GEM_DOMAIN_VRAM; 171 case TTM_PL_TT: 172 return AMDGPU_GEM_DOMAIN_GTT; 173 case TTM_PL_SYSTEM: 174 return AMDGPU_GEM_DOMAIN_CPU; 175 case AMDGPU_PL_GDS: 176 return AMDGPU_GEM_DOMAIN_GDS; 177 case AMDGPU_PL_GWS: 178 return AMDGPU_GEM_DOMAIN_GWS; 179 case AMDGPU_PL_OA: 180 return AMDGPU_GEM_DOMAIN_OA; 181 default: 182 break; 183 } 184 return 0; 185 } 186 187 /** 188 * amdgpu_bo_reserve - reserve bo 189 * @bo: bo structure 190 * @no_intr: don't return -ERESTARTSYS on pending signal 191 * 192 * Returns: 193 * -ERESTARTSYS: A wait for the buffer to become unreserved was interrupted by 194 * a signal. Release all buffer reservations and return to user-space. 195 */ 196 static inline int amdgpu_bo_reserve(struct amdgpu_bo *bo, bool no_intr) 197 { 198 struct amdgpu_device *adev = amdgpu_ttm_adev(bo->tbo.bdev); 199 int r; 200 201 r = ttm_bo_reserve(&bo->tbo, !no_intr, false, NULL); 202 if (unlikely(r != 0)) { 203 if (r != -ERESTARTSYS) 204 dev_err(adev->dev, "%p reserve failed\n", bo); 205 return r; 206 } 207 return 0; 208 } 209 210 static inline void amdgpu_bo_unreserve(struct amdgpu_bo *bo) 211 { 212 ttm_bo_unreserve(&bo->tbo); 213 } 214 215 static inline unsigned long amdgpu_bo_size(struct amdgpu_bo *bo) 216 { 217 return bo->tbo.base.size; 218 } 219 220 static inline unsigned amdgpu_bo_ngpu_pages(struct amdgpu_bo *bo) 221 { 222 return bo->tbo.base.size / AMDGPU_GPU_PAGE_SIZE; 223 } 224 225 static inline unsigned amdgpu_bo_gpu_page_alignment(struct amdgpu_bo *bo) 226 { 227 return (bo->tbo.page_alignment << PAGE_SHIFT) / AMDGPU_GPU_PAGE_SIZE; 228 } 229 230 /** 231 * amdgpu_bo_mmap_offset - return mmap offset of bo 232 * @bo: amdgpu object for which we query the offset 233 * 234 * Returns mmap offset of the object. 235 */ 236 static inline u64 amdgpu_bo_mmap_offset(struct amdgpu_bo *bo) 237 { 238 return drm_vma_node_offset_addr(&bo->tbo.base.vma_node); 239 } 240 241 /** 242 * amdgpu_bo_in_cpu_visible_vram - check if BO is (partly) in visible VRAM 243 */ 244 static inline bool amdgpu_bo_in_cpu_visible_vram(struct amdgpu_bo *bo) 245 { 246 struct amdgpu_device *adev = amdgpu_ttm_adev(bo->tbo.bdev); 247 struct amdgpu_res_cursor cursor; 248 249 if (bo->tbo.resource->mem_type != TTM_PL_VRAM) 250 return false; 251 252 amdgpu_res_first(bo->tbo.resource, 0, amdgpu_bo_size(bo), &cursor); 253 while (cursor.remaining) { 254 if (cursor.start < adev->gmc.visible_vram_size) 255 return true; 256 257 amdgpu_res_next(&cursor, cursor.size); 258 } 259 260 return false; 261 } 262 263 /** 264 * amdgpu_bo_explicit_sync - return whether the bo is explicitly synced 265 */ 266 static inline bool amdgpu_bo_explicit_sync(struct amdgpu_bo *bo) 267 { 268 return bo->flags & AMDGPU_GEM_CREATE_EXPLICIT_SYNC; 269 } 270 271 /** 272 * amdgpu_bo_encrypted - test if the BO is encrypted 273 * @bo: pointer to a buffer object 274 * 275 * Return true if the buffer object is encrypted, false otherwise. 276 */ 277 static inline bool amdgpu_bo_encrypted(struct amdgpu_bo *bo) 278 { 279 return bo->flags & AMDGPU_GEM_CREATE_ENCRYPTED; 280 } 281 282 /** 283 * amdgpu_bo_shadowed - check if the BO is shadowed 284 * 285 * @bo: BO to be tested. 286 * 287 * Returns: 288 * NULL if not shadowed or else return a BO pointer. 289 */ 290 static inline struct amdgpu_bo *amdgpu_bo_shadowed(struct amdgpu_bo *bo) 291 { 292 if (bo->tbo.type == ttm_bo_type_kernel) 293 return to_amdgpu_bo_vm(bo)->shadow; 294 295 return NULL; 296 } 297 298 bool amdgpu_bo_is_amdgpu_bo(struct ttm_buffer_object *bo); 299 void amdgpu_bo_placement_from_domain(struct amdgpu_bo *abo, u32 domain); 300 301 int amdgpu_bo_create(struct amdgpu_device *adev, 302 struct amdgpu_bo_param *bp, 303 struct amdgpu_bo **bo_ptr); 304 int amdgpu_bo_create_reserved(struct amdgpu_device *adev, 305 unsigned long size, int align, 306 u32 domain, struct amdgpu_bo **bo_ptr, 307 u64 *gpu_addr, void **cpu_addr); 308 int amdgpu_bo_create_kernel(struct amdgpu_device *adev, 309 unsigned long size, int align, 310 u32 domain, struct amdgpu_bo **bo_ptr, 311 u64 *gpu_addr, void **cpu_addr); 312 int amdgpu_bo_create_kernel_at(struct amdgpu_device *adev, 313 uint64_t offset, uint64_t size, 314 struct amdgpu_bo **bo_ptr, void **cpu_addr); 315 int amdgpu_bo_create_user(struct amdgpu_device *adev, 316 struct amdgpu_bo_param *bp, 317 struct amdgpu_bo_user **ubo_ptr); 318 int amdgpu_bo_create_vm(struct amdgpu_device *adev, 319 struct amdgpu_bo_param *bp, 320 struct amdgpu_bo_vm **ubo_ptr); 321 void amdgpu_bo_free_kernel(struct amdgpu_bo **bo, u64 *gpu_addr, 322 void **cpu_addr); 323 int amdgpu_bo_kmap(struct amdgpu_bo *bo, void **ptr); 324 void *amdgpu_bo_kptr(struct amdgpu_bo *bo); 325 void amdgpu_bo_kunmap(struct amdgpu_bo *bo); 326 struct amdgpu_bo *amdgpu_bo_ref(struct amdgpu_bo *bo); 327 void amdgpu_bo_unref(struct amdgpu_bo **bo); 328 int amdgpu_bo_pin(struct amdgpu_bo *bo, u32 domain); 329 int amdgpu_bo_pin_restricted(struct amdgpu_bo *bo, u32 domain, 330 u64 min_offset, u64 max_offset); 331 void amdgpu_bo_unpin(struct amdgpu_bo *bo); 332 int amdgpu_bo_init(struct amdgpu_device *adev); 333 void amdgpu_bo_fini(struct amdgpu_device *adev); 334 int amdgpu_bo_set_tiling_flags(struct amdgpu_bo *bo, u64 tiling_flags); 335 void amdgpu_bo_get_tiling_flags(struct amdgpu_bo *bo, u64 *tiling_flags); 336 int amdgpu_bo_set_metadata (struct amdgpu_bo *bo, void *metadata, 337 uint32_t metadata_size, uint64_t flags); 338 int amdgpu_bo_get_metadata(struct amdgpu_bo *bo, void *buffer, 339 size_t buffer_size, uint32_t *metadata_size, 340 uint64_t *flags); 341 void amdgpu_bo_move_notify(struct ttm_buffer_object *bo, 342 bool evict, 343 struct ttm_resource *new_mem); 344 void amdgpu_bo_release_notify(struct ttm_buffer_object *bo); 345 vm_fault_t amdgpu_bo_fault_reserve_notify(struct ttm_buffer_object *bo); 346 void amdgpu_bo_fence(struct amdgpu_bo *bo, struct dma_fence *fence, 347 bool shared); 348 int amdgpu_bo_sync_wait_resv(struct amdgpu_device *adev, struct dma_resv *resv, 349 enum amdgpu_sync_mode sync_mode, void *owner, 350 bool intr); 351 int amdgpu_bo_sync_wait(struct amdgpu_bo *bo, void *owner, bool intr); 352 u64 amdgpu_bo_gpu_offset(struct amdgpu_bo *bo); 353 u64 amdgpu_bo_gpu_offset_no_check(struct amdgpu_bo *bo); 354 void amdgpu_bo_get_memory(struct amdgpu_bo *bo, 355 struct amdgpu_mem_stats *stats); 356 void amdgpu_bo_add_to_shadow_list(struct amdgpu_bo_vm *vmbo); 357 int amdgpu_bo_restore_shadow(struct amdgpu_bo *shadow, 358 struct dma_fence **fence); 359 uint32_t amdgpu_bo_get_preferred_domain(struct amdgpu_device *adev, 360 uint32_t domain); 361 362 /* 363 * sub allocation 364 */ 365 static inline struct amdgpu_sa_manager * 366 to_amdgpu_sa_manager(struct drm_suballoc_manager *manager) 367 { 368 return container_of(manager, struct amdgpu_sa_manager, base); 369 } 370 371 static inline uint64_t amdgpu_sa_bo_gpu_addr(struct drm_suballoc *sa_bo) 372 { 373 return to_amdgpu_sa_manager(sa_bo->manager)->gpu_addr + 374 drm_suballoc_soffset(sa_bo); 375 } 376 377 static inline void *amdgpu_sa_bo_cpu_addr(struct drm_suballoc *sa_bo) 378 { 379 return to_amdgpu_sa_manager(sa_bo->manager)->cpu_ptr + 380 drm_suballoc_soffset(sa_bo); 381 } 382 383 int amdgpu_sa_bo_manager_init(struct amdgpu_device *adev, 384 struct amdgpu_sa_manager *sa_manager, 385 unsigned size, u32 align, u32 domain); 386 void amdgpu_sa_bo_manager_fini(struct amdgpu_device *adev, 387 struct amdgpu_sa_manager *sa_manager); 388 int amdgpu_sa_bo_manager_start(struct amdgpu_device *adev, 389 struct amdgpu_sa_manager *sa_manager); 390 int amdgpu_sa_bo_new(struct amdgpu_sa_manager *sa_manager, 391 struct drm_suballoc **sa_bo, 392 unsigned int size); 393 void amdgpu_sa_bo_free(struct amdgpu_device *adev, 394 struct drm_suballoc **sa_bo, 395 struct dma_fence *fence); 396 #if defined(CONFIG_DEBUG_FS) 397 void amdgpu_sa_bo_dump_debug_info(struct amdgpu_sa_manager *sa_manager, 398 struct seq_file *m); 399 u64 amdgpu_bo_print_info(int id, struct amdgpu_bo *bo, struct seq_file *m); 400 #endif 401 void amdgpu_debugfs_sa_init(struct amdgpu_device *adev); 402 403 bool amdgpu_bo_support_uswc(u64 bo_flags); 404 405 406 #endif 407