drivers/gpu/drm/amd/amdgpu/amdgpu_object.h

   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
  34 #define AMDGPU_BO_INVALID_OFFSET        LONG_MAX
  35
  36 /* bo virtual addresses in a vm */
  37 struct amdgpu_bo_va_mapping {
  38         struct amdgpu_bo_va             *bo_va;
  39         struct list_head                list;
  40         struct rb_node                  rb;
  41         uint64_t                        start;
  42         uint64_t                        last;
  43         uint64_t                        __subtree_last;
  44         uint64_t                        offset;
  45         uint64_t                        flags;
  46 };
  47
  48 /* User space allocated BO in a VM */
  49 struct amdgpu_bo_va {
  50         struct amdgpu_vm_bo_base        base;
  51
  52         /* protected by bo being reserved */
  53         unsigned                        ref_count;
  54
  55         /* all other members protected by the VM PD being reserved */
  56         struct dma_fence                *last_pt_update;
  57
  58         /* mappings for this bo_va */
  59         struct list_head                invalids;
  60         struct list_head                valids;
  61
  62         /* If the mappings are cleared or filled */
  63         bool                            cleared;
  64 };
  65
  66 struct amdgpu_bo {
  67         /* Protected by tbo.reserved */
  68         u32                             preferred_domains;
  69         u32                             allowed_domains;
  70         struct ttm_place                placements[AMDGPU_GEM_DOMAIN_MAX + 1];
  71         struct ttm_placement            placement;
  72         struct ttm_buffer_object        tbo;
  73         struct ttm_bo_kmap_obj          kmap;
  74         u64                             flags;
  75         unsigned                        pin_count;
  76         u64                             tiling_flags;
  77         u64                             metadata_flags;
  78         void                            *metadata;
  79         u32                             metadata_size;
  80         unsigned                        prime_shared_count;
  81         /* list of all virtual address to which this bo is associated to */
  82         struct list_head                va;
  83         /* Constant after initialization */
  84         struct drm_gem_object           gem_base;
  85         struct amdgpu_bo                *parent;
  86         struct amdgpu_bo                *shadow;
  87
  88         struct ttm_bo_kmap_obj          dma_buf_vmap;
  89         struct amdgpu_mn                *mn;
  90
  91         union {
  92                 struct list_head        mn_list;
  93                 struct list_head        shadow_list;
  94         };
  95 };
  96
  97 static inline struct amdgpu_bo *ttm_to_amdgpu_bo(struct ttm_buffer_object *tbo)
  98 {
  99         return container_of(tbo, struct amdgpu_bo, tbo);
 100 }
 101
 102 /**
 103  * amdgpu_mem_type_to_domain - return domain corresponding to mem_type
 104  * @mem_type:   ttm memory type
 105  *
 106  * Returns corresponding domain of the ttm mem_type
 107  */
 108 static inline unsigned amdgpu_mem_type_to_domain(u32 mem_type)
 109 {
 110         switch (mem_type) {
 111         case TTM_PL_VRAM:
 112                 return AMDGPU_GEM_DOMAIN_VRAM;
 113         case TTM_PL_TT:
 114                 return AMDGPU_GEM_DOMAIN_GTT;
 115         case TTM_PL_SYSTEM:
 116                 return AMDGPU_GEM_DOMAIN_CPU;
 117         case AMDGPU_PL_GDS:
 118                 return AMDGPU_GEM_DOMAIN_GDS;
 119         case AMDGPU_PL_GWS:
 120                 return AMDGPU_GEM_DOMAIN_GWS;
 121         case AMDGPU_PL_OA:
 122                 return AMDGPU_GEM_DOMAIN_OA;
 123         default:
 124                 break;
 125         }
 126         return 0;
 127 }
 128
 129 /**
 130  * amdgpu_bo_reserve - reserve bo
 131  * @bo:         bo structure
 132  * @no_intr:    don't return -ERESTARTSYS on pending signal
 133  *
 134  * Returns:
 135  * -ERESTARTSYS: A wait for the buffer to become unreserved was interrupted by
 136  * a signal. Release all buffer reservations and return to user-space.
 137  */
 138 static inline int amdgpu_bo_reserve(struct amdgpu_bo *bo, bool no_intr)
 139 {
 140         struct amdgpu_device *adev = amdgpu_ttm_adev(bo->tbo.bdev);
 141         int r;
 142
 143         r = ttm_bo_reserve(&bo->tbo, !no_intr, false, NULL);
 144         if (unlikely(r != 0)) {
 145                 if (r != -ERESTARTSYS)
 146                         dev_err(adev->dev, "%p reserve failed\n", bo);
 147                 return r;
 148         }
 149         return 0;
 150 }
 151
 152 static inline void amdgpu_bo_unreserve(struct amdgpu_bo *bo)
 153 {
 154         ttm_bo_unreserve(&bo->tbo);
 155 }
 156
 157 static inline unsigned long amdgpu_bo_size(struct amdgpu_bo *bo)
 158 {
 159         return bo->tbo.num_pages << PAGE_SHIFT;
 160 }
 161
 162 static inline unsigned amdgpu_bo_ngpu_pages(struct amdgpu_bo *bo)
 163 {
 164         return (bo->tbo.num_pages << PAGE_SHIFT) / AMDGPU_GPU_PAGE_SIZE;
 165 }
 166
 167 static inline unsigned amdgpu_bo_gpu_page_alignment(struct amdgpu_bo *bo)
 168 {
 169         return (bo->tbo.mem.page_alignment << PAGE_SHIFT) / AMDGPU_GPU_PAGE_SIZE;
 170 }
 171
 172 /**
 173  * amdgpu_bo_mmap_offset - return mmap offset of bo
 174  * @bo: amdgpu object for which we query the offset
 175  *
 176  * Returns mmap offset of the object.
 177  */
 178 static inline u64 amdgpu_bo_mmap_offset(struct amdgpu_bo *bo)
 179 {
 180         return drm_vma_node_offset_addr(&bo->tbo.vma_node);
 181 }
 182
 183 /**
 184  * amdgpu_bo_gpu_accessible - return whether the bo is currently in memory that
 185  * is accessible to the GPU.
 186  */
 187 static inline bool amdgpu_bo_gpu_accessible(struct amdgpu_bo *bo)
 188 {
 189         switch (bo->tbo.mem.mem_type) {
 190         case TTM_PL_TT: return amdgpu_ttm_is_bound(bo->tbo.ttm);
 191         case TTM_PL_VRAM: return true;
 192         default: return false;
 193         }
 194 }
 195
 196 /**
 197  * amdgpu_bo_explicit_sync - return whether the bo is explicitly synced
 198  */
 199 static inline bool amdgpu_bo_explicit_sync(struct amdgpu_bo *bo)
 200 {
 201         return bo->flags & AMDGPU_GEM_CREATE_EXPLICIT_SYNC;
 202 }
 203
 204 int amdgpu_bo_create(struct amdgpu_device *adev,
 205                             unsigned long size, int byte_align,
 206                             bool kernel, u32 domain, u64 flags,
 207                             struct sg_table *sg,
 208                             struct reservation_object *resv,
 209                             uint64_t init_value,
 210                             struct amdgpu_bo **bo_ptr);
 211 int amdgpu_bo_create_reserved(struct amdgpu_device *adev,
 212                               unsigned long size, int align,
 213                               u32 domain, struct amdgpu_bo **bo_ptr,
 214                               u64 *gpu_addr, void **cpu_addr);
 215 int amdgpu_bo_create_kernel(struct amdgpu_device *adev,
 216                             unsigned long size, int align,
 217                             u32 domain, struct amdgpu_bo **bo_ptr,
 218                             u64 *gpu_addr, void **cpu_addr);
 219 void amdgpu_bo_free_kernel(struct amdgpu_bo **bo, u64 *gpu_addr,
 220                            void **cpu_addr);
 221 int amdgpu_bo_kmap(struct amdgpu_bo *bo, void **ptr);
 222 void *amdgpu_bo_kptr(struct amdgpu_bo *bo);
 223 void amdgpu_bo_kunmap(struct amdgpu_bo *bo);
 224 struct amdgpu_bo *amdgpu_bo_ref(struct amdgpu_bo *bo);
 225 void amdgpu_bo_unref(struct amdgpu_bo **bo);
 226 int amdgpu_bo_pin(struct amdgpu_bo *bo, u32 domain, u64 *gpu_addr);
 227 int amdgpu_bo_pin_restricted(struct amdgpu_bo *bo, u32 domain,
 228                              u64 min_offset, u64 max_offset,
 229                              u64 *gpu_addr);
 230 int amdgpu_bo_unpin(struct amdgpu_bo *bo);
 231 int amdgpu_bo_evict_vram(struct amdgpu_device *adev);
 232 int amdgpu_bo_init(struct amdgpu_device *adev);
 233 void amdgpu_bo_fini(struct amdgpu_device *adev);
 234 int amdgpu_bo_fbdev_mmap(struct amdgpu_bo *bo,
 235                                 struct vm_area_struct *vma);
 236 int amdgpu_bo_set_tiling_flags(struct amdgpu_bo *bo, u64 tiling_flags);
 237 void amdgpu_bo_get_tiling_flags(struct amdgpu_bo *bo, u64 *tiling_flags);
 238 int amdgpu_bo_set_metadata (struct amdgpu_bo *bo, void *metadata,
 239                             uint32_t metadata_size, uint64_t flags);
 240 int amdgpu_bo_get_metadata(struct amdgpu_bo *bo, void *buffer,
 241                            size_t buffer_size, uint32_t *metadata_size,
 242                            uint64_t *flags);
 243 void amdgpu_bo_move_notify(struct ttm_buffer_object *bo,
 244                            bool evict,
 245                            struct ttm_mem_reg *new_mem);
 246 int amdgpu_bo_fault_reserve_notify(struct ttm_buffer_object *bo);
 247 void amdgpu_bo_fence(struct amdgpu_bo *bo, struct dma_fence *fence,
 248                      bool shared);
 249 u64 amdgpu_bo_gpu_offset(struct amdgpu_bo *bo);
 250 int amdgpu_bo_backup_to_shadow(struct amdgpu_device *adev,
 251                                struct amdgpu_ring *ring,
 252                                struct amdgpu_bo *bo,
 253                                struct reservation_object *resv,
 254                                struct dma_fence **fence, bool direct);
 255 int amdgpu_bo_validate(struct amdgpu_bo *bo);
 256 int amdgpu_bo_restore_from_shadow(struct amdgpu_device *adev,
 257                                   struct amdgpu_ring *ring,
 258                                   struct amdgpu_bo *bo,
 259                                   struct reservation_object *resv,
 260                                   struct dma_fence **fence,
 261                                   bool direct);
 262
 263
 264 /*
 265  * sub allocation
 266  */
 267
 268 static inline uint64_t amdgpu_sa_bo_gpu_addr(struct amdgpu_sa_bo *sa_bo)
 269 {
 270         return sa_bo->manager->gpu_addr + sa_bo->soffset;
 271 }
 272
 273 static inline void * amdgpu_sa_bo_cpu_addr(struct amdgpu_sa_bo *sa_bo)
 274 {
 275         return sa_bo->manager->cpu_ptr + sa_bo->soffset;
 276 }
 277
 278 int amdgpu_sa_bo_manager_init(struct amdgpu_device *adev,
 279                                      struct amdgpu_sa_manager *sa_manager,
 280                                      unsigned size, u32 align, u32 domain);
 281 void amdgpu_sa_bo_manager_fini(struct amdgpu_device *adev,
 282                                       struct amdgpu_sa_manager *sa_manager);
 283 int amdgpu_sa_bo_manager_start(struct amdgpu_device *adev,
 284                                       struct amdgpu_sa_manager *sa_manager);
 285 int amdgpu_sa_bo_manager_suspend(struct amdgpu_device *adev,
 286                                         struct amdgpu_sa_manager *sa_manager);
 287 int amdgpu_sa_bo_new(struct amdgpu_sa_manager *sa_manager,
 288                      struct amdgpu_sa_bo **sa_bo,
 289                      unsigned size, unsigned align);
 290 void amdgpu_sa_bo_free(struct amdgpu_device *adev,
 291                               struct amdgpu_sa_bo **sa_bo,
 292                               struct dma_fence *fence);
 293 #if defined(CONFIG_DEBUG_FS)
 294 void amdgpu_sa_bo_dump_debug_info(struct amdgpu_sa_manager *sa_manager,
 295                                          struct seq_file *m);
 296 #endif
 297
 298
 299 #endif