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 /* xcp partition number plus 1, 0 means any partition */ 60 int8_t xcp_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 * protected by vm reservation lock 96 * if non-zero, cannot unmap from GPU because user queues may still access it 97 */ 98 unsigned int queue_refcount; 99 }; 100 101 struct amdgpu_bo { 102 /* Protected by tbo.reserved */ 103 u32 preferred_domains; 104 u32 allowed_domains; 105 struct ttm_place placements[AMDGPU_BO_MAX_PLACEMENTS]; 106 struct ttm_placement placement; 107 struct ttm_buffer_object tbo; 108 struct ttm_bo_kmap_obj kmap; 109 u64 flags; 110 /* per VM structure for page tables and with virtual addresses */ 111 struct amdgpu_vm_bo_base *vm_bo; 112 /* Constant after initialization */ 113 struct amdgpu_bo *parent; 114 115 #ifdef CONFIG_MMU_NOTIFIER 116 struct mmu_interval_notifier notifier; 117 #endif 118 struct kgd_mem *kfd_bo; 119 120 /* 121 * For GPUs with spatial partitioning, xcp partition number, -1 means 122 * any partition. For other ASICs without spatial partition, always 0 123 * for memory accounting. 124 */ 125 int8_t xcp_id; 126 }; 127 128 struct amdgpu_bo_user { 129 struct amdgpu_bo bo; 130 u64 tiling_flags; 131 u64 metadata_flags; 132 void *metadata; 133 u32 metadata_size; 134 135 }; 136 137 struct amdgpu_bo_vm { 138 struct amdgpu_bo bo; 139 struct amdgpu_vm_bo_base entries[]; 140 }; 141 142 struct amdgpu_mem_stats { 143 /* current VRAM usage, includes visible VRAM */ 144 uint64_t vram; 145 /* current shared VRAM usage, includes visible VRAM */ 146 uint64_t vram_shared; 147 /* current visible VRAM usage */ 148 uint64_t visible_vram; 149 /* current GTT usage */ 150 uint64_t gtt; 151 /* current shared GTT usage */ 152 uint64_t gtt_shared; 153 /* current system memory usage */ 154 uint64_t cpu; 155 /* current shared system memory usage */ 156 uint64_t cpu_shared; 157 /* sum of evicted buffers, includes visible VRAM */ 158 uint64_t evicted_vram; 159 /* sum of evicted buffers due to CPU access */ 160 uint64_t evicted_visible_vram; 161 /* how much userspace asked for, includes vis.VRAM */ 162 uint64_t requested_vram; 163 /* how much userspace asked for */ 164 uint64_t requested_visible_vram; 165 /* how much userspace asked for */ 166 uint64_t requested_gtt; 167 }; 168 169 static inline struct amdgpu_bo *ttm_to_amdgpu_bo(struct ttm_buffer_object *tbo) 170 { 171 return container_of(tbo, struct amdgpu_bo, tbo); 172 } 173 174 /** 175 * amdgpu_mem_type_to_domain - return domain corresponding to mem_type 176 * @mem_type: ttm memory type 177 * 178 * Returns corresponding domain of the ttm mem_type 179 */ 180 static inline unsigned amdgpu_mem_type_to_domain(u32 mem_type) 181 { 182 switch (mem_type) { 183 case TTM_PL_VRAM: 184 return AMDGPU_GEM_DOMAIN_VRAM; 185 case TTM_PL_TT: 186 return AMDGPU_GEM_DOMAIN_GTT; 187 case TTM_PL_SYSTEM: 188 return AMDGPU_GEM_DOMAIN_CPU; 189 case AMDGPU_PL_GDS: 190 return AMDGPU_GEM_DOMAIN_GDS; 191 case AMDGPU_PL_GWS: 192 return AMDGPU_GEM_DOMAIN_GWS; 193 case AMDGPU_PL_OA: 194 return AMDGPU_GEM_DOMAIN_OA; 195 case AMDGPU_PL_DOORBELL: 196 return AMDGPU_GEM_DOMAIN_DOORBELL; 197 default: 198 break; 199 } 200 return 0; 201 } 202 203 /** 204 * amdgpu_bo_reserve - reserve bo 205 * @bo: bo structure 206 * @no_intr: don't return -ERESTARTSYS on pending signal 207 * 208 * Returns: 209 * -ERESTARTSYS: A wait for the buffer to become unreserved was interrupted by 210 * a signal. Release all buffer reservations and return to user-space. 211 */ 212 static inline int amdgpu_bo_reserve(struct amdgpu_bo *bo, bool no_intr) 213 { 214 struct amdgpu_device *adev = amdgpu_ttm_adev(bo->tbo.bdev); 215 int r; 216 217 r = ttm_bo_reserve(&bo->tbo, !no_intr, false, NULL); 218 if (unlikely(r != 0)) { 219 if (r != -ERESTARTSYS) 220 dev_err(adev->dev, "%p reserve failed\n", bo); 221 return r; 222 } 223 return 0; 224 } 225 226 static inline void amdgpu_bo_unreserve(struct amdgpu_bo *bo) 227 { 228 ttm_bo_unreserve(&bo->tbo); 229 } 230 231 static inline unsigned long amdgpu_bo_size(struct amdgpu_bo *bo) 232 { 233 return bo->tbo.base.size; 234 } 235 236 static inline unsigned amdgpu_bo_ngpu_pages(struct amdgpu_bo *bo) 237 { 238 return bo->tbo.base.size / AMDGPU_GPU_PAGE_SIZE; 239 } 240 241 static inline unsigned amdgpu_bo_gpu_page_alignment(struct amdgpu_bo *bo) 242 { 243 return (bo->tbo.page_alignment << PAGE_SHIFT) / AMDGPU_GPU_PAGE_SIZE; 244 } 245 246 /** 247 * amdgpu_bo_mmap_offset - return mmap offset of bo 248 * @bo: amdgpu object for which we query the offset 249 * 250 * Returns mmap offset of the object. 251 */ 252 static inline u64 amdgpu_bo_mmap_offset(struct amdgpu_bo *bo) 253 { 254 return drm_vma_node_offset_addr(&bo->tbo.base.vma_node); 255 } 256 257 /** 258 * amdgpu_bo_explicit_sync - return whether the bo is explicitly synced 259 */ 260 static inline bool amdgpu_bo_explicit_sync(struct amdgpu_bo *bo) 261 { 262 return bo->flags & AMDGPU_GEM_CREATE_EXPLICIT_SYNC; 263 } 264 265 /** 266 * amdgpu_bo_encrypted - test if the BO is encrypted 267 * @bo: pointer to a buffer object 268 * 269 * Return true if the buffer object is encrypted, false otherwise. 270 */ 271 static inline bool amdgpu_bo_encrypted(struct amdgpu_bo *bo) 272 { 273 return bo->flags & AMDGPU_GEM_CREATE_ENCRYPTED; 274 } 275 276 bool amdgpu_bo_is_amdgpu_bo(struct ttm_buffer_object *bo); 277 void amdgpu_bo_placement_from_domain(struct amdgpu_bo *abo, u32 domain); 278 279 int amdgpu_bo_create(struct amdgpu_device *adev, 280 struct amdgpu_bo_param *bp, 281 struct amdgpu_bo **bo_ptr); 282 int amdgpu_bo_create_reserved(struct amdgpu_device *adev, 283 unsigned long size, int align, 284 u32 domain, struct amdgpu_bo **bo_ptr, 285 u64 *gpu_addr, void **cpu_addr); 286 int amdgpu_bo_create_kernel(struct amdgpu_device *adev, 287 unsigned long size, int align, 288 u32 domain, struct amdgpu_bo **bo_ptr, 289 u64 *gpu_addr, void **cpu_addr); 290 int amdgpu_bo_create_kernel_at(struct amdgpu_device *adev, 291 uint64_t offset, uint64_t size, 292 struct amdgpu_bo **bo_ptr, void **cpu_addr); 293 int amdgpu_bo_create_user(struct amdgpu_device *adev, 294 struct amdgpu_bo_param *bp, 295 struct amdgpu_bo_user **ubo_ptr); 296 int amdgpu_bo_create_vm(struct amdgpu_device *adev, 297 struct amdgpu_bo_param *bp, 298 struct amdgpu_bo_vm **ubo_ptr); 299 void amdgpu_bo_free_kernel(struct amdgpu_bo **bo, u64 *gpu_addr, 300 void **cpu_addr); 301 int amdgpu_bo_kmap(struct amdgpu_bo *bo, void **ptr); 302 void *amdgpu_bo_kptr(struct amdgpu_bo *bo); 303 void amdgpu_bo_kunmap(struct amdgpu_bo *bo); 304 struct amdgpu_bo *amdgpu_bo_ref(struct amdgpu_bo *bo); 305 void amdgpu_bo_unref(struct amdgpu_bo **bo); 306 int amdgpu_bo_pin(struct amdgpu_bo *bo, u32 domain); 307 void amdgpu_bo_unpin(struct amdgpu_bo *bo); 308 int amdgpu_bo_init(struct amdgpu_device *adev); 309 void amdgpu_bo_fini(struct amdgpu_device *adev); 310 int amdgpu_bo_set_tiling_flags(struct amdgpu_bo *bo, u64 tiling_flags); 311 void amdgpu_bo_get_tiling_flags(struct amdgpu_bo *bo, u64 *tiling_flags); 312 int amdgpu_bo_set_metadata (struct amdgpu_bo *bo, void *metadata, 313 uint32_t metadata_size, uint64_t flags); 314 int amdgpu_bo_get_metadata(struct amdgpu_bo *bo, void *buffer, 315 size_t buffer_size, uint32_t *metadata_size, 316 uint64_t *flags); 317 void amdgpu_bo_move_notify(struct ttm_buffer_object *bo, 318 bool evict, 319 struct ttm_resource *new_mem); 320 void amdgpu_bo_release_notify(struct ttm_buffer_object *bo); 321 vm_fault_t amdgpu_bo_fault_reserve_notify(struct ttm_buffer_object *bo); 322 void amdgpu_bo_fence(struct amdgpu_bo *bo, struct dma_fence *fence, 323 bool shared); 324 int amdgpu_bo_sync_wait_resv(struct amdgpu_device *adev, struct dma_resv *resv, 325 enum amdgpu_sync_mode sync_mode, void *owner, 326 bool intr); 327 int amdgpu_bo_sync_wait(struct amdgpu_bo *bo, void *owner, bool intr); 328 u64 amdgpu_bo_gpu_offset(struct amdgpu_bo *bo); 329 u64 amdgpu_bo_gpu_offset_no_check(struct amdgpu_bo *bo); 330 void amdgpu_bo_get_memory(struct amdgpu_bo *bo, 331 struct amdgpu_mem_stats *stats); 332 uint32_t amdgpu_bo_get_preferred_domain(struct amdgpu_device *adev, 333 uint32_t domain); 334 335 /* 336 * sub allocation 337 */ 338 static inline struct amdgpu_sa_manager * 339 to_amdgpu_sa_manager(struct drm_suballoc_manager *manager) 340 { 341 return container_of(manager, struct amdgpu_sa_manager, base); 342 } 343 344 static inline uint64_t amdgpu_sa_bo_gpu_addr(struct drm_suballoc *sa_bo) 345 { 346 return to_amdgpu_sa_manager(sa_bo->manager)->gpu_addr + 347 drm_suballoc_soffset(sa_bo); 348 } 349 350 static inline void *amdgpu_sa_bo_cpu_addr(struct drm_suballoc *sa_bo) 351 { 352 return to_amdgpu_sa_manager(sa_bo->manager)->cpu_ptr + 353 drm_suballoc_soffset(sa_bo); 354 } 355 356 int amdgpu_sa_bo_manager_init(struct amdgpu_device *adev, 357 struct amdgpu_sa_manager *sa_manager, 358 unsigned size, u32 align, u32 domain); 359 void amdgpu_sa_bo_manager_fini(struct amdgpu_device *adev, 360 struct amdgpu_sa_manager *sa_manager); 361 int amdgpu_sa_bo_manager_start(struct amdgpu_device *adev, 362 struct amdgpu_sa_manager *sa_manager); 363 int amdgpu_sa_bo_new(struct amdgpu_sa_manager *sa_manager, 364 struct drm_suballoc **sa_bo, 365 unsigned int size); 366 void amdgpu_sa_bo_free(struct amdgpu_device *adev, 367 struct drm_suballoc **sa_bo, 368 struct dma_fence *fence); 369 #if defined(CONFIG_DEBUG_FS) 370 void amdgpu_sa_bo_dump_debug_info(struct amdgpu_sa_manager *sa_manager, 371 struct seq_file *m); 372 u64 amdgpu_bo_print_info(int id, struct amdgpu_bo *bo, struct seq_file *m); 373 #endif 374 void amdgpu_debugfs_sa_init(struct amdgpu_device *adev); 375 376 bool amdgpu_bo_support_uswc(u64 bo_flags); 377 378 379 #endif 380