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
  16 extern void debug_dma_unmap_page(struct device *dev, dma_addr_t addr,
  17                                  size_t size, int direction);
  18
  19 extern void debug_dma_map_sg(struct device *dev, struct scatterlist *sg,
  20                              int nents, int mapped_ents, int direction);
  21
  22 extern void debug_dma_unmap_sg(struct device *dev, struct scatterlist *sglist,
  23                                int nelems, int dir);
  24
  25 extern void debug_dma_alloc_coherent(struct device *dev, size_t size,
  26                                      dma_addr_t dma_addr, void *virt);
  27
  28 extern void debug_dma_free_coherent(struct device *dev, size_t size,
  29                                     void *virt, dma_addr_t addr);
  30
  31 extern void debug_dma_map_resource(struct device *dev, phys_addr_t addr,
  32                                    size_t size, int direction,
  33                                    dma_addr_t dma_addr);
  34
  35 extern void debug_dma_unmap_resource(struct device *dev, dma_addr_t dma_addr,
  36                                      size_t size, int direction);
  37
  38 extern void debug_dma_sync_single_for_cpu(struct device *dev,
  39                                           dma_addr_t dma_handle, size_t size,
  40                                           int direction);
  41
  42 extern void debug_dma_sync_single_for_device(struct device *dev,
  43                                              dma_addr_t dma_handle,
  44                                              size_t size, int direction);
  45
  46 extern void debug_dma_sync_sg_for_cpu(struct device *dev,
  47                                       struct scatterlist *sg,
  48                                       int nelems, int direction);
  49
  50 extern void debug_dma_sync_sg_for_device(struct device *dev,
  51                                          struct scatterlist *sg,
  52                                          int nelems, int direction);
  53 #else /* CONFIG_DMA_API_DEBUG */
  54 static inline void debug_dma_map_page(struct device *dev, struct page *page,
  55                                       size_t offset, size_t size,
  56                                       int direction, dma_addr_t dma_addr)
  57 {
  58 }
  59
  60 static inline void debug_dma_unmap_page(struct device *dev, dma_addr_t addr,
  61                                         size_t size, int direction)
  62 {
  63 }
  64
  65 static inline void debug_dma_map_sg(struct device *dev, struct scatterlist *sg,
  66                                     int nents, int mapped_ents, int direction)
  67 {
  68 }
  69
  70 static inline void debug_dma_unmap_sg(struct device *dev,
  71                                       struct scatterlist *sglist,
  72                                       int nelems, int dir)
  73 {
  74 }
  75
  76 static inline void debug_dma_alloc_coherent(struct device *dev, size_t size,
  77                                             dma_addr_t dma_addr, void *virt)
  78 {
  79 }
  80
  81 static inline void debug_dma_free_coherent(struct device *dev, size_t size,
  82                                            void *virt, dma_addr_t addr)
  83 {
  84 }
  85
  86 static inline void debug_dma_map_resource(struct device *dev, phys_addr_t addr,
  87                                           size_t size, int direction,
  88                                           dma_addr_t dma_addr)
  89 {
  90 }
  91
  92 static inline void debug_dma_unmap_resource(struct device *dev,
  93                                             dma_addr_t dma_addr, size_t size,
  94                                             int direction)
  95 {
  96 }
  97
  98 static inline void debug_dma_sync_single_for_cpu(struct device *dev,
  99                                                  dma_addr_t dma_handle,
 100                                                  size_t size, int direction)
 101 {
 102 }
 103
 104 static inline void debug_dma_sync_single_for_device(struct device *dev,
 105                                                     dma_addr_t dma_handle,
 106                                                     size_t size, int direction)
 107 {
 108 }
 109
 110 static inline void debug_dma_sync_sg_for_cpu(struct device *dev,
 111                                              struct scatterlist *sg,
 112                                              int nelems, int direction)
 113 {
 114 }
 115
 116 static inline void debug_dma_sync_sg_for_device(struct device *dev,
 117                                                 struct scatterlist *sg,
 118                                                 int nelems, int direction)
 119 {
 120 }
 121 #endif /* CONFIG_DMA_API_DEBUG */
 122 #endif /* _KERNEL_DMA_DEBUG_H */