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 #define AMDGPU_BO_MAX_PLACEMENTS        3
  36
  37 struct amdgpu_bo_param {
  38         unsigned long                   size;
  39         int                             byte_align;
  40         u32                             domain;
  41         u32                             preferred_domain;
  42         u64                             flags;
  43         enum ttm_bo_type                type;
  44         struct reservation_object       *resv;
  45 };
  46
  47 /* bo virtual addresses in a vm */
  48 struct amdgpu_bo_va_mapping {
  49         struct amdgpu_bo_va             *bo_va;
  50         struct list_head                list;
  51         struct rb_node                  rb;
  52         uint64_t                        start;
  53         uint64_t                        last;
  54         uint64_t                        __subtree_last;
  55         uint64_t                        offset;
  56         uint64_t                        flags;
  57 };
  58
  59 /* User space allocated BO in a VM */
  60 struct amdgpu_bo_va {
  61         struct amdgpu_vm_bo_base        base;
  62
  63         /* protected by bo being reserved */
  64         unsigned                        ref_count;
  65
  66         /* all other members protected by the VM PD being reserved */
  67         struct dma_fence                *last_pt_update;
  68
  69         /* mappings for this bo_va */
  70         struct list_head                invalids;
  71         struct list_head                valids;
  72
  73         /* If the mappings are cleared or filled */
  74         bool                            cleared;
  75 };
  76
  77 struct amdgpu_bo {
  78         /* Protected by tbo.reserved */
  79         u32                             preferred_domains;
  80         u32                             allowed_domains;
  81         struct ttm_place                placements[AMDGPU_BO_MAX_PLACEMENTS];
  82         struct ttm_placement            placement;
  83         struct ttm_buffer_object        tbo;
  84         struct ttm_bo_kmap_obj          kmap;
  85         u64                             flags;
  86         unsigned                        pin_count;
  87         u64                             tiling_flags;
  88         u64                             metadata_flags;
  89         void                            *metadata;
  90         u32                             metadata_size;
  91         unsigned                        prime_shared_count;
  92         /* per VM structure for page tables and with virtual addresses */
  93         struct amdgpu_vm_bo_base        *vm_bo;
  94         /* Constant after initialization */
  95         struct drm_gem_object           gem_base;
  96         struct amdgpu_bo                *parent;
  97         struct amdgpu_bo                *shadow;
  98
  99         struct ttm_bo_kmap_obj          dma_buf_vmap;
 100         struct amdgpu_mn                *mn;
 101
 102         union {
 103                 struct list_head        mn_list;
 104                 struct list_head        shadow_list;
 105         };
 106
 107         struct kgd_mem                  *kfd_bo;
 108 };
 109
 110 static inline struct amdgpu_bo *ttm_to_amdgpu_bo(struct ttm_buffer_object *tbo)
 111 {
 112         return container_of(tbo, struct amdgpu_bo, tbo);
 113 }
 114
 115 /**
 116  * amdgpu_mem_type_to_domain - return domain corresponding to mem_type
 117  * @mem_type:   ttm memory type
 118  *
 119  * Returns corresponding domain of the ttm mem_type
 120  */
 121 static inline unsigned amdgpu_mem_type_to_domain(u32 mem_type)
 122 {
 123         switch (mem_type) {
 124         case TTM_PL_VRAM:
 125                 return AMDGPU_GEM_DOMAIN_VRAM;
 126         case TTM_PL_TT:
 127                 return AMDGPU_GEM_DOMAIN_GTT;
 128         case TTM_PL_SYSTEM:
 129                 return AMDGPU_GEM_DOMAIN_CPU;
 130         case AMDGPU_PL_GDS:
 131                 return AMDGPU_GEM_DOMAIN_GDS;
 132         case AMDGPU_PL_GWS:
 133                 return AMDGPU_GEM_DOMAIN_GWS;
 134         case AMDGPU_PL_OA:
 135                 return AMDGPU_GEM_DOMAIN_OA;
 136         default:
 137                 break;
 138         }
 139         return 0;
 140 }
 141
 142 /**
 143  * amdgpu_bo_reserve - reserve bo
 144  * @bo:         bo structure
 145  * @no_intr:    don't return -ERESTARTSYS on pending signal
 146  *
 147  * Returns:
 148  * -ERESTARTSYS: A wait for the buffer to become unreserved was interrupted by
 149  * a signal. Release all buffer reservations and return to user-space.
 150  */
 151 static inline int amdgpu_bo_reserve(struct amdgpu_bo *bo, bool no_intr)
 152 {
 153         struct amdgpu_device *adev = amdgpu_ttm_adev(bo->tbo.bdev);
 154         int r;
 155
 156         r = ttm_bo_reserve(&bo->tbo, !no_intr, false, NULL);
 157         if (unlikely(r != 0)) {
 158                 if (r != -ERESTARTSYS)
 159                         dev_err(adev->dev, "%p reserve failed\n", bo);
 160                 return r;
 161         }
 162         return 0;
 163 }
 164
 165 static inline void amdgpu_bo_unreserve(struct amdgpu_bo *bo)
 166 {
 167         ttm_bo_unreserve(&bo->tbo);
 168 }
 169
 170 static inline unsigned long amdgpu_bo_size(struct amdgpu_bo *bo)
 171 {
 172         return bo->tbo.num_pages << PAGE_SHIFT;
 173 }
 174
 175 static inline unsigned amdgpu_bo_ngpu_pages(struct amdgpu_bo *bo)
 176 {
 177         return (bo->tbo.num_pages << PAGE_SHIFT) / AMDGPU_GPU_PAGE_SIZE;
 178 }
 179
 180 static inline unsigned amdgpu_bo_gpu_page_alignment(struct amdgpu_bo *bo)
 181 {
 182         return (bo->tbo.mem.page_alignment << PAGE_SHIFT) / AMDGPU_GPU_PAGE_SIZE;
 183 }
 184
 185 /**
 186  * amdgpu_bo_mmap_offset - return mmap offset of bo
 187  * @bo: amdgpu object for which we query the offset
 188  *
 189  * Returns mmap offset of the object.
 190  */
 191 static inline u64 amdgpu_bo_mmap_offset(struct amdgpu_bo *bo)
 192 {
 193         return drm_vma_node_offset_addr(&bo->tbo.vma_node);
 194 }
 195
 196 /**
 197  * amdgpu_bo_in_cpu_visible_vram - check if BO is (partly) in visible VRAM
 198  */
 199 static inline bool amdgpu_bo_in_cpu_visible_vram(struct amdgpu_bo *bo)
 200 {
 201         struct amdgpu_device *adev = amdgpu_ttm_adev(bo->tbo.bdev);
 202         unsigned fpfn = adev->gmc.visible_vram_size >> PAGE_SHIFT;
 203         struct drm_mm_node *node = bo->tbo.mem.mm_node;
 204         unsigned long pages_left;
 205
 206         if (bo->tbo.mem.mem_type != TTM_PL_VRAM)
 207                 return false;
 208
 209         for (pages_left = bo->tbo.mem.num_pages; pages_left;
 210              pages_left -= node->size, node++)
 211                 if (node->start < fpfn)
 212                         return true;
 213
 214         return false;
 215 }
 216
 217 /**
 218  * amdgpu_bo_explicit_sync - return whether the bo is explicitly synced
 219  */
 220 static inline bool amdgpu_bo_explicit_sync(struct amdgpu_bo *bo)
 221 {
 222         return bo->flags & AMDGPU_GEM_CREATE_EXPLICIT_SYNC;
 223 }
 224
 225 bool amdgpu_bo_is_amdgpu_bo(struct ttm_buffer_object *bo);
 226 void amdgpu_bo_placement_from_domain(struct amdgpu_bo *abo, u32 domain);
 227
 228 int amdgpu_bo_create(struct amdgpu_device *adev,
 229                      struct amdgpu_bo_param *bp,
 230                      struct amdgpu_bo **bo_ptr);
 231 int amdgpu_bo_create_reserved(struct amdgpu_device *adev,
 232                               unsigned long size, int align,
 233                               u32 domain, struct amdgpu_bo **bo_ptr,
 234                               u64 *gpu_addr, void **cpu_addr);
 235 int amdgpu_bo_create_kernel(struct amdgpu_device *adev,
 236                             unsigned long size, int align,
 237                             u32 domain, struct amdgpu_bo **bo_ptr,
 238                             u64 *gpu_addr, void **cpu_addr);
 239 void amdgpu_bo_free_kernel(struct amdgpu_bo **bo, u64 *gpu_addr,
 240                            void **cpu_addr);
 241 int amdgpu_bo_kmap(struct amdgpu_bo *bo, void **ptr);
 242 void *amdgpu_bo_kptr(struct amdgpu_bo *bo);
 243 void amdgpu_bo_kunmap(struct amdgpu_bo *bo);
 244 struct amdgpu_bo *amdgpu_bo_ref(struct amdgpu_bo *bo);
 245 void amdgpu_bo_unref(struct amdgpu_bo **bo);
 246 int amdgpu_bo_pin(struct amdgpu_bo *bo, u32 domain);
 247 int amdgpu_bo_pin_restricted(struct amdgpu_bo *bo, u32 domain,
 248                              u64 min_offset, u64 max_offset);
 249 int amdgpu_bo_unpin(struct amdgpu_bo *bo);
 250 int amdgpu_bo_evict_vram(struct amdgpu_device *adev);
 251 int amdgpu_bo_init(struct amdgpu_device *adev);
 252 int amdgpu_bo_late_init(struct amdgpu_device *adev);
 253 void amdgpu_bo_fini(struct amdgpu_device *adev);
 254 int amdgpu_bo_fbdev_mmap(struct amdgpu_bo *bo,
 255                                 struct vm_area_struct *vma);
 256 int amdgpu_bo_set_tiling_flags(struct amdgpu_bo *bo, u64 tiling_flags);
 257 void amdgpu_bo_get_tiling_flags(struct amdgpu_bo *bo, u64 *tiling_flags);
 258 int amdgpu_bo_set_metadata (struct amdgpu_bo *bo, void *metadata,
 259                             uint32_t metadata_size, uint64_t flags);
 260 int amdgpu_bo_get_metadata(struct amdgpu_bo *bo, void *buffer,
 261                            size_t buffer_size, uint32_t *metadata_size,
 262                            uint64_t *flags);
 263 void amdgpu_bo_move_notify(struct ttm_buffer_object *bo,
 264                            bool evict,
 265                            struct ttm_mem_reg *new_mem);
 266 int amdgpu_bo_fault_reserve_notify(struct ttm_buffer_object *bo);
 267 void amdgpu_bo_fence(struct amdgpu_bo *bo, struct dma_fence *fence,
 268                      bool shared);
 269 int amdgpu_bo_sync_wait(struct amdgpu_bo *bo, void *owner, bool intr);
 270 u64 amdgpu_bo_gpu_offset(struct amdgpu_bo *bo);
 271 int amdgpu_bo_validate(struct amdgpu_bo *bo);
 272 int amdgpu_bo_restore_shadow(struct amdgpu_bo *shadow,
 273                              struct dma_fence **fence);
 274 uint32_t amdgpu_bo_get_preferred_pin_domain(struct amdgpu_device *adev,
 275                                             uint32_t domain);
 276
 277 /*
 278  * sub allocation
 279  */
 280
 281 static inline uint64_t amdgpu_sa_bo_gpu_addr(struct amdgpu_sa_bo *sa_bo)
 282 {
 283         return sa_bo->manager->gpu_addr + sa_bo->soffset;
 284 }
 285
 286 static inline void * amdgpu_sa_bo_cpu_addr(struct amdgpu_sa_bo *sa_bo)
 287 {
 288         return sa_bo->manager->cpu_ptr + sa_bo->soffset;
 289 }
 290
 291 int amdgpu_sa_bo_manager_init(struct amdgpu_device *adev,
 292                                      struct amdgpu_sa_manager *sa_manager,
 293                                      unsigned size, u32 align, u32 domain);
 294 void amdgpu_sa_bo_manager_fini(struct amdgpu_device *adev,
 295                                       struct amdgpu_sa_manager *sa_manager);
 296 int amdgpu_sa_bo_manager_start(struct amdgpu_device *adev,
 297                                       struct amdgpu_sa_manager *sa_manager);
 298 int amdgpu_sa_bo_new(struct amdgpu_sa_manager *sa_manager,
 299                      struct amdgpu_sa_bo **sa_bo,
 300                      unsigned size, unsigned align);
 301 void amdgpu_sa_bo_free(struct amdgpu_device *adev,
 302                               struct amdgpu_sa_bo **sa_bo,
 303                               struct dma_fence *fence);
 304 #if defined(CONFIG_DEBUG_FS)
 305 void amdgpu_sa_bo_dump_debug_info(struct amdgpu_sa_manager *sa_manager,
 306                                          struct seq_file *m);
 307 #endif
 308
 309
 310 #endif