drivers/gpu/drm/radeon/radeon_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 __RADEON_OBJECT_H__
  29 #define __RADEON_OBJECT_H__
  30
  31 #include <drm/radeon_drm.h>
  32 #include "radeon.h"
  33
  34 /**
  35  * radeon_mem_type_to_domain - return domain corresponding to mem_type
  36  * @mem_type:   ttm memory type
  37  *
  38  * Returns corresponding domain of the ttm mem_type
  39  */
  40 static inline unsigned radeon_mem_type_to_domain(u32 mem_type)
  41 {
  42         switch (mem_type) {
  43         case TTM_PL_VRAM:
  44                 return RADEON_GEM_DOMAIN_VRAM;
  45         case TTM_PL_TT:
  46                 return RADEON_GEM_DOMAIN_GTT;
  47         case TTM_PL_SYSTEM:
  48                 return RADEON_GEM_DOMAIN_CPU;
  49         default:
  50                 break;
  51         }
  52         return 0;
  53 }
  54
  55 int radeon_bo_reserve(struct radeon_bo *bo, bool no_wait);
  56
  57 static inline void radeon_bo_unreserve(struct radeon_bo *bo)
  58 {
  59         ttm_bo_unreserve(&bo->tbo);
  60 }
  61
  62 /**
  63  * radeon_bo_gpu_offset - return GPU offset of bo
  64  * @bo: radeon object for which we query the offset
  65  *
  66  * Returns current GPU offset of the object.
  67  *
  68  * Note: object should either be pinned or reserved when calling this
  69  * function, it might be useful to add check for this for debugging.
  70  */
  71 static inline u64 radeon_bo_gpu_offset(struct radeon_bo *bo)
  72 {
  73         return bo->tbo.offset;
  74 }
  75
  76 static inline unsigned long radeon_bo_size(struct radeon_bo *bo)
  77 {
  78         return bo->tbo.num_pages << PAGE_SHIFT;
  79 }
  80
  81 static inline bool radeon_bo_is_reserved(struct radeon_bo *bo)
  82 {
  83         return !!atomic_read(&bo->tbo.reserved);
  84 }
  85
  86 static inline unsigned radeon_bo_ngpu_pages(struct radeon_bo *bo)
  87 {
  88         return (bo->tbo.num_pages << PAGE_SHIFT) / RADEON_GPU_PAGE_SIZE;
  89 }
  90
  91 static inline unsigned radeon_bo_gpu_page_alignment(struct radeon_bo *bo)
  92 {
  93         return (bo->tbo.mem.page_alignment << PAGE_SHIFT) / RADEON_GPU_PAGE_SIZE;
  94 }
  95
  96 /**
  97  * radeon_bo_mmap_offset - return mmap offset of bo
  98  * @bo: radeon object for which we query the offset
  99  *
 100  * Returns mmap offset of the object.
 101  *
 102  * Note: addr_space_offset is constant after ttm bo init thus isn't protected
 103  * by any lock.
 104  */
 105 static inline u64 radeon_bo_mmap_offset(struct radeon_bo *bo)
 106 {
 107         return bo->tbo.addr_space_offset;
 108 }
 109
 110 extern int radeon_bo_wait(struct radeon_bo *bo, u32 *mem_type,
 111                           bool no_wait);
 112
 113 extern int radeon_bo_create(struct radeon_device *rdev,
 114                                 unsigned long size, int byte_align,
 115                                 bool kernel, u32 domain,
 116                                 struct radeon_bo **bo_ptr);
 117 extern int radeon_bo_kmap(struct radeon_bo *bo, void **ptr);
 118 extern void radeon_bo_kunmap(struct radeon_bo *bo);
 119 extern void radeon_bo_unref(struct radeon_bo **bo);
 120 extern int radeon_bo_pin(struct radeon_bo *bo, u32 domain, u64 *gpu_addr);
 121 extern int radeon_bo_pin_restricted(struct radeon_bo *bo, u32 domain,
 122                                     u64 max_offset, u64 *gpu_addr);
 123 extern int radeon_bo_unpin(struct radeon_bo *bo);
 124 extern int radeon_bo_evict_vram(struct radeon_device *rdev);
 125 extern void radeon_bo_force_delete(struct radeon_device *rdev);
 126 extern int radeon_bo_init(struct radeon_device *rdev);
 127 extern void radeon_bo_fini(struct radeon_device *rdev);
 128 extern void radeon_bo_list_add_object(struct radeon_bo_list *lobj,
 129                                 struct list_head *head);
 130 extern int radeon_bo_list_validate(struct list_head *head);
 131 extern int radeon_bo_fbdev_mmap(struct radeon_bo *bo,
 132                                 struct vm_area_struct *vma);
 133 extern int radeon_bo_set_tiling_flags(struct radeon_bo *bo,
 134                                 u32 tiling_flags, u32 pitch);
 135 extern void radeon_bo_get_tiling_flags(struct radeon_bo *bo,
 136                                 u32 *tiling_flags, u32 *pitch);
 137 extern int radeon_bo_check_tiling(struct radeon_bo *bo, bool has_moved,
 138                                 bool force_drop);
 139 extern void radeon_bo_move_notify(struct ttm_buffer_object *bo,
 140                                         struct ttm_mem_reg *mem);
 141 extern int radeon_bo_fault_reserve_notify(struct ttm_buffer_object *bo);
 142 extern int radeon_bo_get_surface_reg(struct radeon_bo *bo);
 143 extern struct radeon_bo_va *radeon_bo_va(struct radeon_bo *rbo,
 144                                          struct radeon_vm *vm);
 145
 146 /*
 147  * sub allocation
 148  */
 149 extern int radeon_sa_bo_manager_init(struct radeon_device *rdev,
 150                                      struct radeon_sa_manager *sa_manager,
 151                                      unsigned size, u32 domain);
 152 extern void radeon_sa_bo_manager_fini(struct radeon_device *rdev,
 153                                       struct radeon_sa_manager *sa_manager);
 154 extern int radeon_sa_bo_manager_start(struct radeon_device *rdev,
 155                                       struct radeon_sa_manager *sa_manager);
 156 extern int radeon_sa_bo_manager_suspend(struct radeon_device *rdev,
 157                                         struct radeon_sa_manager *sa_manager);
 158 extern int radeon_sa_bo_new(struct radeon_device *rdev,
 159                             struct radeon_sa_manager *sa_manager,
 160                             struct radeon_sa_bo *sa_bo,
 161                             unsigned size, unsigned align);
 162 extern void radeon_sa_bo_free(struct radeon_device *rdev,
 163                               struct radeon_sa_bo *sa_bo);
 164
 165 #endif