kernel/dma/debug.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * Copyright (C) 2008 Advanced Micro Devices, Inc.
   4  *
   5  * Author: Joerg Roedel <joerg.roedel@amd.com>
   6  */
   7
   8 #ifndef _KERNEL_DMA_DEBUG_H
   9 #define _KERNEL_DMA_DEBUG_H
  10
  11 #ifdef CONFIG_DMA_API_DEBUG
  12 extern void debug_dma_map_page(struct device *dev, struct page *page,
  13                                size_t offset, size_t size,
  14                                int direction, dma_addr_t dma_addr,
  15                                unsigned long attrs);
  16
  17 extern void debug_dma_unmap_page(struct device *dev, dma_addr_t addr,
  18                                  size_t size, int direction);
  19
  20 extern void debug_dma_map_sg(struct device *dev, struct scatterlist *sg,
  21                              int nents, int mapped_ents, int direction,
  22                              unsigned long attrs);
  23
  24 extern void debug_dma_unmap_sg(struct device *dev, struct scatterlist *sglist,
  25                                int nelems, int dir);
  26
  27 extern void debug_dma_alloc_coherent(struct device *dev, size_t size,
  28                                      dma_addr_t dma_addr, void *virt,
  29                                      unsigned long attrs);
  30
  31 extern void debug_dma_free_coherent(struct device *dev, size_t size,
  32                                     void *virt, dma_addr_t addr);
  33
  34 extern void debug_dma_map_resource(struct device *dev, phys_addr_t addr,
  35                                    size_t size, int direction,
  36                                    dma_addr_t dma_addr,
  37                                    unsigned long attrs);
  38
  39 extern void debug_dma_unmap_resource(struct device *dev, dma_addr_t dma_addr,
  40                                      size_t size, int direction);
  41
  42 extern void debug_dma_sync_single_for_cpu(struct device *dev,
  43                                           dma_addr_t dma_handle, size_t size,
  44                                           int direction);
  45
  46 extern void debug_dma_sync_single_for_device(struct device *dev,
  47                                              dma_addr_t dma_handle,
  48                                              size_t size, int direction);
  49
  50 extern void debug_dma_sync_sg_for_cpu(struct device *dev,
  51                                       struct scatterlist *sg,
  52                                       int nelems, int direction);
  53
  54 extern void debug_dma_sync_sg_for_device(struct device *dev,
  55                                          struct scatterlist *sg,
  56                                          int nelems, int direction);
  57 #else /* CONFIG_DMA_API_DEBUG */
  58 static inline void debug_dma_map_page(struct device *dev, struct page *page,
  59                                       size_t offset, size_t size,
  60                                       int direction, dma_addr_t dma_addr,
  61                                       unsigned long attrs)
  62 {
  63 }
  64
  65 static inline void debug_dma_unmap_page(struct device *dev, dma_addr_t addr,
  66                                         size_t size, int direction)
  67 {
  68 }
  69
  70 static inline void debug_dma_map_sg(struct device *dev, struct scatterlist *sg,
  71                                     int nents, int mapped_ents, int direction,
  72                                     unsigned long attrs)
  73 {
  74 }
  75
  76 static inline void debug_dma_unmap_sg(struct device *dev,
  77                                       struct scatterlist *sglist,
  78                                       int nelems, int dir)
  79 {
  80 }
  81
  82 static inline void debug_dma_alloc_coherent(struct device *dev, size_t size,
  83                                             dma_addr_t dma_addr, void *virt,
  84                                             unsigned long attrs)
  85 {
  86 }
  87
  88 static inline void debug_dma_free_coherent(struct device *dev, size_t size,
  89                                            void *virt, dma_addr_t addr)
  90 {
  91 }
  92
  93 static inline void debug_dma_map_resource(struct device *dev, phys_addr_t addr,
  94                                           size_t size, int direction,
  95                                           dma_addr_t dma_addr,
  96                                           unsigned long attrs)
  97 {
  98 }
  99
 100 static inline void debug_dma_unmap_resource(struct device *dev,
 101                                             dma_addr_t dma_addr, size_t size,
 102                                             int direction)
 103 {
 104 }
 105
 106 static inline void debug_dma_sync_single_for_cpu(struct device *dev,
 107                                                  dma_addr_t dma_handle,
 108                                                  size_t size, int direction)
 109 {
 110 }
 111
 112 static inline void debug_dma_sync_single_for_device(struct device *dev,
 113                                                     dma_addr_t dma_handle,
 114                                                     size_t size, int direction)
 115 {
 116 }
 117
 118 static inline void debug_dma_sync_sg_for_cpu(struct device *dev,
 119                                              struct scatterlist *sg,
 120                                              int nelems, int direction)
 121 {
 122 }
 123
 124 static inline void debug_dma_sync_sg_for_device(struct device *dev,
 125                                                 struct scatterlist *sg,
 126                                                 int nelems, int direction)
 127 {
 128 }
 129 #endif /* CONFIG_DMA_API_DEBUG */
 130 #endif /* _KERNEL_DMA_DEBUG_H */