LXR linux/drivers/gpu/drm/amd/amdgpu/amdgpu_bo

   1/*
   2 * Copyright 2018 Advanced Micro Devices, 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 "Software"),
   6 * to deal in the Software without restriction, including without limitation
   7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8 * and/or sell copies of the Software, and to permit persons to whom the
   9 * Software is furnished to do so, subject to the following conditions:
  10 *
  11 * The above copyright notice and this permission notice shall be included in
  12 * all copies or substantial portions of the Software.
  13 *
  14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  20 * OTHER DEALINGS IN THE SOFTWARE.
  21 *
  22 */
  23#ifndef __AMDGPU_BO_LIST_H__
  24#define __AMDGPU_BO_LIST_H__
  25
  26#include <drm/ttm/ttm_execbuf_util.h>
  27#include <drm/amdgpu_drm.h>
  28
  29struct amdgpu_device;
  30struct amdgpu_bo;
  31struct amdgpu_bo_va;
  32struct amdgpu_fpriv;
  33
  34struct amdgpu_bo_list_entry {
  35        struct ttm_validate_buffer      tv;
  36        struct amdgpu_bo_va             *bo_va;
  37        uint32_t                        priority;
  38        struct page                     **user_pages;
  39        bool                            user_invalidated;
  40};
  41
  42struct amdgpu_bo_list {
  43        struct rcu_head rhead;
  44        struct kref refcount;
  45        struct amdgpu_bo *gds_obj;
  46        struct amdgpu_bo *gws_obj;
  47        struct amdgpu_bo *oa_obj;
  48        unsigned first_userptr;
  49        unsigned num_entries;
  50};
  51
  52int amdgpu_bo_list_get(struct amdgpu_fpriv *fpriv, int id,
  53                       struct amdgpu_bo_list **result);
  54void amdgpu_bo_list_get_list(struct amdgpu_bo_list *list,
  55                             struct list_head *validated);
  56void amdgpu_bo_list_put(struct amdgpu_bo_list *list);
  57int amdgpu_bo_create_list_entry_array(struct drm_amdgpu_bo_list_in *in,
  58                                      struct drm_amdgpu_bo_list_entry **info_param);
  59
  60int amdgpu_bo_list_create(struct amdgpu_device *adev,
  61                                 struct drm_file *filp,
  62                                 struct drm_amdgpu_bo_list_entry *info,
  63                                 unsigned num_entries,
  64                                 struct amdgpu_bo_list **list);
  65
  66static inline struct amdgpu_bo_list_entry *
  67amdgpu_bo_list_array_entry(struct amdgpu_bo_list *list, unsigned index)
  68{
  69        struct amdgpu_bo_list_entry *array = (void *)&list[1];
  70
  71        return &array[index];
  72}
  73
  74#define amdgpu_bo_list_for_each_entry(e, list) \
  75        for (e = amdgpu_bo_list_array_entry(list, 0); \
  76             e != amdgpu_bo_list_array_entry(list, (list)->num_entries); \
  77             ++e)
  78
  79#define amdgpu_bo_list_for_each_userptr_entry(e, list) \
  80        for (e = amdgpu_bo_list_array_entry(list, (list)->first_userptr); \
  81             e != amdgpu_bo_list_array_entry(list, (list)->num_entries); \
  82             ++e)
  83
  84#endif
  85