mm.h 3.2 KB

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  1. /*
  2. * Copyright (c) 2019, Chips&Media
  3. * All rights reserved.
  4. *
  5. * Redistribution and use in source and binary forms, with or without
  6. * modification, are permitted provided that the following conditions are met:
  7. *
  8. * 1. Redistributions of source code must retain the above copyright notice, this
  9. * list of conditions and the following disclaimer.
  10. * 2. Redistributions in binary form must reproduce the above copyright notice,
  11. * this list of conditions and the following disclaimer in the documentation
  12. * and/or other materials provided with the distribution.
  13. *
  14. * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
  15. * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  16. * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  17. * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
  18. * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  19. * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  20. * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  21. * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  22. * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  23. * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  24. */
  25. #ifndef __CNM_VIDEO_MEMORY_ALLOCATOR_H_
  26. #define __CNM_VIDEO_MEMORY_ALLOCATOR_H_
  27. #ifdef USE_FEEDING_METHOD_BUFFER
  28. #include "wave511/vpuapi/vputypes.h"
  29. #else
  30. #include <vputypes.h>
  31. #endif
  32. typedef struct _video_mm_info_struct {
  33. unsigned long total_pages;
  34. unsigned long alloc_pages;
  35. unsigned long free_pages;
  36. unsigned long page_size;
  37. } vmem_info_t;
  38. #if defined(WIN32) || defined(WIN64)
  39. #if (_MSC_VER == 1200)
  40. typedef _int64 vmem_key_t;
  41. #else
  42. typedef unsigned long long vmem_key_t;
  43. #endif
  44. #else
  45. typedef unsigned long long vmem_key_t;
  46. #endif
  47. #define VMEM_PAGE_SIZE (16*1024ULL)
  48. #define MAKE_KEY(_a, _b) (((vmem_key_t)_a)<<32 | _b)
  49. #define KEY_TO_VALUE(_key) (_key>>32)
  50. typedef struct page_struct {
  51. int pageno;
  52. unsigned long addr;
  53. int used;
  54. int alloc_pages;
  55. int first_pageno;
  56. } page_t;
  57. typedef struct avl_node_struct {
  58. vmem_key_t key;
  59. int height;
  60. page_t* page;
  61. struct avl_node_struct* left;
  62. struct avl_node_struct* right;
  63. } avl_node_t;
  64. typedef struct _video_mm_struct {
  65. avl_node_t* free_tree;
  66. avl_node_t* alloc_tree;
  67. page_t* page_list;
  68. int num_pages;
  69. unsigned long base_addr;
  70. unsigned long mem_size;
  71. int free_page_count;
  72. int alloc_page_count;
  73. } video_mm_t;
  74. #if defined (__cplusplus)
  75. extern "C" {
  76. #endif
  77. extern int
  78. vmem_init(
  79. video_mm_t* mm,
  80. unsigned long addr,
  81. unsigned long size
  82. );
  83. extern int
  84. vmem_exit(
  85. video_mm_t* mm
  86. );
  87. extern PhysicalAddress
  88. vmem_alloc(
  89. video_mm_t* mm,
  90. int size,
  91. unsigned long pid
  92. );
  93. extern int
  94. vmem_free(
  95. video_mm_t* mm,
  96. unsigned long ptr,
  97. unsigned long pid
  98. );
  99. extern int
  100. vmem_get_info(
  101. video_mm_t* mm,
  102. vmem_info_t* info
  103. );
  104. #if defined (__cplusplus)
  105. }
  106. #endif
  107. #endif /* __CNM_VIDEO_MEMORY_ALLOCATOR_H__ */