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  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. struct sg_table;
  35.  
  36. /**
  37.  * radeon_mem_type_to_domain - return domain corresponding to mem_type
  38.  * @mem_type:   ttm memory type
  39.  *
  40.  * Returns corresponding domain of the ttm mem_type
  41.  */
  42. static inline unsigned radeon_mem_type_to_domain(u32 mem_type)
  43. {
  44.         switch (mem_type) {
  45.         case TTM_PL_VRAM:
  46.                 return RADEON_GEM_DOMAIN_VRAM;
  47.         case TTM_PL_TT:
  48.                 return RADEON_GEM_DOMAIN_GTT;
  49.         case TTM_PL_SYSTEM:
  50.                 return RADEON_GEM_DOMAIN_CPU;
  51.         default:
  52.                 break;
  53.         }
  54.         return 0;
  55. }
  56.  
  57. int radeon_bo_reserve(struct radeon_bo *bo, bool no_intr);
  58.  
  59. static inline void radeon_bo_unreserve(struct radeon_bo *bo)
  60. {
  61.         ttm_bo_unreserve(&bo->tbo);
  62. }
  63.  
  64. /**
  65.  * radeon_bo_gpu_offset - return GPU offset of bo
  66.  * @bo: radeon object for which we query the offset
  67.  *
  68.  * Returns current GPU offset of the object.
  69.  *
  70.  * Note: object should either be pinned or reserved when calling this
  71.  * function, it might be useful to add check for this for debugging.
  72.  */
  73. static inline u64 radeon_bo_gpu_offset(struct radeon_bo *bo)
  74. {
  75.         return bo->tbo.offset;
  76. }
  77.  
  78. static inline unsigned long radeon_bo_size(struct radeon_bo *bo)
  79. {
  80.         return bo->tbo.num_pages << PAGE_SHIFT;
  81. }
  82.  
  83. static inline bool radeon_bo_is_reserved(struct radeon_bo *bo)
  84. {
  85.         return !!atomic_read(&bo->tbo.reserved);
  86. }
  87.  
  88. static inline unsigned radeon_bo_ngpu_pages(struct radeon_bo *bo)
  89. {
  90.         return (bo->tbo.num_pages << PAGE_SHIFT) / RADEON_GPU_PAGE_SIZE;
  91. }
  92.  
  93. static inline unsigned radeon_bo_gpu_page_alignment(struct radeon_bo *bo)
  94. {
  95.         return (bo->tbo.mem.page_alignment << PAGE_SHIFT) / RADEON_GPU_PAGE_SIZE;
  96. }
  97.  
  98. /**
  99.  * radeon_bo_mmap_offset - return mmap offset of bo
  100.  * @bo: radeon object for which we query the offset
  101.  *
  102.  * Returns mmap offset of the object.
  103.  *
  104.  * Note: addr_space_offset is constant after ttm bo init thus isn't protected
  105.  * by any lock.
  106.  */
  107. static inline u64 radeon_bo_mmap_offset(struct radeon_bo *bo)
  108. {
  109.         return bo->tbo.addr_space_offset;
  110. }
  111.  
  112. extern int radeon_bo_wait(struct radeon_bo *bo, u32 *mem_type,
  113.                           bool no_wait);
  114.  
  115. extern int radeon_bo_create(struct radeon_device *rdev,
  116.                                 unsigned long size, int byte_align,
  117.                                 bool kernel, u32 domain,
  118.                             struct sg_table *sg,
  119.                                 struct radeon_bo **bo_ptr);
  120. extern int radeon_bo_kmap(struct radeon_bo *bo, void **ptr);
  121. extern void radeon_bo_kunmap(struct radeon_bo *bo);
  122. extern void radeon_bo_unref(struct radeon_bo **bo);
  123. extern int radeon_bo_pin(struct radeon_bo *bo, u32 domain, u64 *gpu_addr);
  124. extern int radeon_bo_pin_restricted(struct radeon_bo *bo, u32 domain,
  125.                                     u64 max_offset, u64 *gpu_addr);
  126. extern int radeon_bo_unpin(struct radeon_bo *bo);
  127. extern int radeon_bo_evict_vram(struct radeon_device *rdev);
  128. extern void radeon_bo_force_delete(struct radeon_device *rdev);
  129. extern int radeon_bo_init(struct radeon_device *rdev);
  130. extern void radeon_bo_fini(struct radeon_device *rdev);
  131. extern void radeon_bo_list_add_object(struct radeon_bo_list *lobj,
  132.                                 struct list_head *head);
  133. extern int radeon_bo_list_validate(struct list_head *head);
  134. extern int radeon_bo_fbdev_mmap(struct radeon_bo *bo,
  135.                                 struct vm_area_struct *vma);
  136. extern int radeon_bo_set_tiling_flags(struct radeon_bo *bo,
  137.                                 u32 tiling_flags, u32 pitch);
  138. extern void radeon_bo_get_tiling_flags(struct radeon_bo *bo,
  139.                                 u32 *tiling_flags, u32 *pitch);
  140. extern int radeon_bo_check_tiling(struct radeon_bo *bo, bool has_moved,
  141.                                 bool force_drop);
  142. extern void radeon_bo_move_notify(struct ttm_buffer_object *bo,
  143.                                         struct ttm_mem_reg *mem);
  144. extern int radeon_bo_fault_reserve_notify(struct ttm_buffer_object *bo);
  145. extern int radeon_bo_get_surface_reg(struct radeon_bo *bo);
  146.  
  147. /*
  148.  * sub allocation
  149.  */
  150.  
  151. static inline uint64_t radeon_sa_bo_gpu_addr(struct radeon_sa_bo *sa_bo)
  152. {
  153.         return sa_bo->manager->gpu_addr + sa_bo->soffset;
  154. }
  155.  
  156. static inline void * radeon_sa_bo_cpu_addr(struct radeon_sa_bo *sa_bo)
  157. {
  158.         return sa_bo->manager->cpu_ptr + sa_bo->soffset;
  159. }
  160.  
  161. extern int radeon_sa_bo_manager_init(struct radeon_device *rdev,
  162.                                      struct radeon_sa_manager *sa_manager,
  163.                                      unsigned size, u32 domain);
  164. extern void radeon_sa_bo_manager_fini(struct radeon_device *rdev,
  165.                                       struct radeon_sa_manager *sa_manager);
  166. extern int radeon_sa_bo_manager_start(struct radeon_device *rdev,
  167.                                       struct radeon_sa_manager *sa_manager);
  168. extern int radeon_sa_bo_manager_suspend(struct radeon_device *rdev,
  169.                                         struct radeon_sa_manager *sa_manager);
  170. extern int radeon_sa_bo_new(struct radeon_device *rdev,
  171.                             struct radeon_sa_manager *sa_manager,
  172.                             struct radeon_sa_bo **sa_bo,
  173.                             unsigned size, unsigned align, bool block);
  174. extern void radeon_sa_bo_free(struct radeon_device *rdev,
  175.                               struct radeon_sa_bo **sa_bo,
  176.                               struct radeon_fence *fence);
  177. #if defined(CONFIG_DEBUG_FS)
  178. extern void radeon_sa_bo_dump_debug_info(struct radeon_sa_manager *sa_manager,
  179.                                          struct seq_file *m);
  180. #endif
  181.  
  182.  
  183. #endif
  184.