/arch/um/include/asm/dma-mapping.h

https://bitbucket.org/thekraven/iscream_thunderc-2.6.35 · C++ Header · 120 lines · 102 code · 18 blank · 0 comment · 0 complexity · c87ea6378af2d3da2fc4e7721f60ff69 MD5 · raw file 

    

  1. #ifndef _ASM_DMA_MAPPING_H
    2. 

  2. #define _ASM_DMA_MAPPING_H
    3. 

  3. 

  4. #include <asm/scatterlist.h>
    5. 

  5. 

  6. static inline int
    7. 

  7. dma_supported(struct device *dev, u64 mask)
    8. 

  8. {
    9. 

  9. 	BUG();
    10. 

  10. 	return(0);
    11. 

  11. }
    12. 

  12. 

  13. static inline int
    14. 

  14. dma_set_mask(struct device *dev, u64 dma_mask)
    15. 

  15. {
    16. 

  16. 	BUG();
    17. 

  17. 	return(0);
    18. 

  18. }
    19. 

  19. 

  20. static inline void *
    21. 

  21. dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle,
    22. 

  22. 		   gfp_t flag)
    23. 

  23. {
    24. 

  24. 	BUG();
    25. 

  25. 	return((void *) 0);
    26. 

  26. }
    27. 

  27. 

  28. static inline void
    29. 

  29. dma_free_coherent(struct device *dev, size_t size, void *cpu_addr,
    30. 

  30. 		  dma_addr_t dma_handle)
    31. 

  31. {
    32. 

  32. 	BUG();
    33. 

  33. }
    34. 

  34. 

  35. static inline dma_addr_t
    36. 

  36. dma_map_single(struct device *dev, void *cpu_addr, size_t size,
    37. 

  37. 	       enum dma_data_direction direction)
    38. 

  38. {
    39. 

  39. 	BUG();
    40. 

  40. 	return(0);
    41. 

  41. }
    42. 

  42. 

  43. static inline void
    44. 

  44. dma_unmap_single(struct device *dev, dma_addr_t dma_addr, size_t size,
    45. 

  45. 		 enum dma_data_direction direction)
    46. 

  46. {
    47. 

  47. 	BUG();
    48. 

  48. }
    49. 

  49. 

  50. static inline dma_addr_t
    51. 

  51. dma_map_page(struct device *dev, struct page *page,
    52. 

  52. 	     unsigned long offset, size_t size,
    53. 

  53. 	     enum dma_data_direction direction)
    54. 

  54. {
    55. 

  55. 	BUG();
    56. 

  56. 	return(0);
    57. 

  57. }
    58. 

  58. 

  59. static inline void
    60. 

  60. dma_unmap_page(struct device *dev, dma_addr_t dma_address, size_t size,
    61. 

  61. 	       enum dma_data_direction direction)
    62. 

  62. {
    63. 

  63. 	BUG();
    64. 

  64. }
    65. 

  65. 

  66. static inline int
    67. 

  67. dma_map_sg(struct device *dev, struct scatterlist *sg, int nents,
    68. 

  68. 	   enum dma_data_direction direction)
    69. 

  69. {
    70. 

  70. 	BUG();
    71. 

  71. 	return(0);
    72. 

  72. }
    73. 

  73. 

  74. static inline void
    75. 

  75. dma_unmap_sg(struct device *dev, struct scatterlist *sg, int nhwentries,
    76. 

  76. 	     enum dma_data_direction direction)
    77. 

  77. {
    78. 

  78. 	BUG();
    79. 

  79. }
    80. 

  80. 

  81. static inline void
    82. 

  82. dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle, size_t size,
    83. 

  83. 		enum dma_data_direction direction)
    84. 

  84. {
    85. 

  85. 	BUG();
    86. 

  86. }
    87. 

  87. 

  88. static inline void
    89. 

  89. dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, int nelems,
    90. 

  90. 	    enum dma_data_direction direction)
    91. 

  91. {
    92. 

  92. 	BUG();
    93. 

  93. }
    94. 

  94. 

  95. #define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f)
    96. 

  96. #define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h)
    97. 

  97. #define dma_is_consistent(d, h) (1)
    98. 

  98. 

  99. static inline int
    100. 

  100. dma_get_cache_alignment(void)
    101. 

  101. {
    102. 

  102. 	BUG();
    103. 

  103. 	return(0);
    104. 

  104. }
    105. 

  105. 

  106. static inline void
    107. 

  107. dma_cache_sync(struct device *dev, void *vaddr, size_t size,
    108. 

  108. 	       enum dma_data_direction direction)
    109. 

  109. {
    110. 

  110. 	BUG();
    111. 

  111. }
    112. 

  112. 

  113. static inline int
    114. 

  114. dma_mapping_error(struct device *dev, dma_addr_t dma_handle)
    115. 

  115. {
    116. 

  116. 	BUG();
    117. 

  117. 	return 0;
    118. 

  118. }
    119. 

  119. 

  120. #endif
    121.