LXR linux/include/linux/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 __DMA_DEBUG_H
   9#define __DMA_DEBUG_H
  10
  11#include <linux/types.h>
  12
  13struct device;
  14struct scatterlist;
  15struct bus_type;
  16
  17#ifdef CONFIG_DMA_API_DEBUG
  18
  19extern void dma_debug_add_bus(struct bus_type *bus);
  20
  21extern void debug_dma_map_single(struct device *dev, const void *addr,
  22                                 unsigned long len);
  23
  24extern void debug_dma_map_page(struct device *dev, struct page *page,
  25                               size_t offset, size_t size,
  26                               int direction, dma_addr_t dma_addr);
  27
  28extern void debug_dma_mapping_error(struct device *dev, dma_addr_t dma_addr);
  29
  30extern void debug_dma_unmap_page(struct device *dev, dma_addr_t addr,
  31                                 size_t size, int direction);
  32
  33extern void debug_dma_map_sg(struct device *dev, struct scatterlist *sg,
  34                             int nents, int mapped_ents, int direction);
  35
  36extern void debug_dma_unmap_sg(struct device *dev, struct scatterlist *sglist,
  37                               int nelems, int dir);
  38
  39extern void debug_dma_alloc_coherent(struct device *dev, size_t size,
  40                                     dma_addr_t dma_addr, void *virt);
  41
  42extern void debug_dma_free_coherent(struct device *dev, size_t size,
  43                                    void *virt, dma_addr_t addr);
  44
  45extern void debug_dma_map_resource(struct device *dev, phys_addr_t addr,
  46                                   size_t size, int direction,
  47                                   dma_addr_t dma_addr);
  48
  49extern void debug_dma_unmap_resource(struct device *dev, dma_addr_t dma_addr,
  50                                     size_t size, int direction);
  51
  52extern void debug_dma_sync_single_for_cpu(struct device *dev,
  53                                          dma_addr_t dma_handle, size_t size,
  54                                          int direction);
  55
  56extern void debug_dma_sync_single_for_device(struct device *dev,
  57                                             dma_addr_t dma_handle,
  58                                             size_t size, int direction);
  59
  60extern void debug_dma_sync_sg_for_cpu(struct device *dev,
  61                                      struct scatterlist *sg,
  62                                      int nelems, int direction);
  63
  64extern void debug_dma_sync_sg_for_device(struct device *dev,
  65                                         struct scatterlist *sg,
  66                                         int nelems, int direction);
  67
  68extern void debug_dma_dump_mappings(struct device *dev);
  69
  70#else /* CONFIG_DMA_API_DEBUG */
  71
  72static inline void dma_debug_add_bus(struct bus_type *bus)
  73{
  74}
  75
  76static inline void debug_dma_map_single(struct device *dev, const void *addr,
  77                                        unsigned long len)
  78{
  79}
  80
  81static inline void debug_dma_map_page(struct device *dev, struct page *page,
  82                                      size_t offset, size_t size,
  83                                      int direction, dma_addr_t dma_addr)
  84{
  85}
  86
  87static inline void debug_dma_mapping_error(struct device *dev,
  88                                          dma_addr_t dma_addr)
  89{
  90}
  91
  92static inline void debug_dma_unmap_page(struct device *dev, dma_addr_t addr,
  93                                        size_t size, int direction)
  94{
  95}
  96
  97static inline void debug_dma_map_sg(struct device *dev, struct scatterlist *sg,
  98                                    int nents, int mapped_ents, int direction)
  99{
 100}
 101
 102static inline void debug_dma_unmap_sg(struct device *dev,
 103                                      struct scatterlist *sglist,
 104                                      int nelems, int dir)
 105{
 106}
 107
 108static inline void debug_dma_alloc_coherent(struct device *dev, size_t size,
 109                                            dma_addr_t dma_addr, void *virt)
 110{
 111}
 112
 113static inline void debug_dma_free_coherent(struct device *dev, size_t size,
 114                                           void *virt, dma_addr_t addr)
 115{
 116}
 117
 118static inline void debug_dma_map_resource(struct device *dev, phys_addr_t addr,
 119                                          size_t size, int direction,
 120                                          dma_addr_t dma_addr)
 121{
 122}
 123
 124static inline void debug_dma_unmap_resource(struct device *dev,
 125                                            dma_addr_t dma_addr, size_t size,
 126                                            int direction)
 127{
 128}
 129
 130static inline void debug_dma_sync_single_for_cpu(struct device *dev,
 131                                                 dma_addr_t dma_handle,
 132                                                 size_t size, int direction)
 133{
 134}
 135
 136static inline void debug_dma_sync_single_for_device(struct device *dev,
 137                                                    dma_addr_t dma_handle,
 138                                                    size_t size, int direction)
 139{
 140}
 141
 142static inline void debug_dma_sync_sg_for_cpu(struct device *dev,
 143                                             struct scatterlist *sg,
 144                                             int nelems, int direction)
 145{
 146}
 147
 148static inline void debug_dma_sync_sg_for_device(struct device *dev,
 149                                                struct scatterlist *sg,
 150                                                int nelems, int direction)
 151{
 152}
 153
 154static inline void debug_dma_dump_mappings(struct device *dev)
 155{
 156}
 157
 158#endif /* CONFIG_DMA_API_DEBUG */
 159
 160#endif /* __DMA_DEBUG_H */
 161