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
  70extern void debug_dma_assert_idle(struct page *page);
  71
  72#else /* CONFIG_DMA_API_DEBUG */
  73
  74static inline void dma_debug_add_bus(struct bus_type *bus)
  75{
  76}
  77
  78static inline void debug_dma_map_single(struct device *dev, const void *addr,
  79                                        unsigned long len)
  80{
  81}
  82
  83static inline void debug_dma_map_page(struct device *dev, struct page *page,
  84                                      size_t offset, size_t size,
  85                                      int direction, dma_addr_t dma_addr)
  86{
  87}
  88
  89static inline void debug_dma_mapping_error(struct device *dev,
  90                                          dma_addr_t dma_addr)
  91{
  92}
  93
  94static inline void debug_dma_unmap_page(struct device *dev, dma_addr_t addr,
  95                                        size_t size, int direction)
  96{
  97}
  98
  99static inline void debug_dma_map_sg(struct device *dev, struct scatterlist *sg,
 100                                    int nents, int mapped_ents, int direction)
 101{
 102}
 103
 104static inline void debug_dma_unmap_sg(struct device *dev,
 105                                      struct scatterlist *sglist,
 106                                      int nelems, int dir)
 107{
 108}
 109
 110static inline void debug_dma_alloc_coherent(struct device *dev, size_t size,
 111                                            dma_addr_t dma_addr, void *virt)
 112{
 113}
 114
 115static inline void debug_dma_free_coherent(struct device *dev, size_t size,
 116                                           void *virt, dma_addr_t addr)
 117{
 118}
 119
 120static inline void debug_dma_map_resource(struct device *dev, phys_addr_t addr,
 121                                          size_t size, int direction,
 122                                          dma_addr_t dma_addr)
 123{
 124}
 125
 126static inline void debug_dma_unmap_resource(struct device *dev,
 127                                            dma_addr_t dma_addr, size_t size,
 128                                            int direction)
 129{
 130}
 131
 132static inline void debug_dma_sync_single_for_cpu(struct device *dev,
 133                                                 dma_addr_t dma_handle,
 134                                                 size_t size, int direction)
 135{
 136}
 137
 138static inline void debug_dma_sync_single_for_device(struct device *dev,
 139                                                    dma_addr_t dma_handle,
 140                                                    size_t size, int direction)
 141{
 142}
 143
 144static inline void debug_dma_sync_sg_for_cpu(struct device *dev,
 145                                             struct scatterlist *sg,
 146                                             int nelems, int direction)
 147{
 148}
 149
 150static inline void debug_dma_sync_sg_for_device(struct device *dev,
 151                                                struct scatterlist *sg,
 152                                                int nelems, int direction)
 153{
 154}
 155
 156static inline void debug_dma_dump_mappings(struct device *dev)
 157{
 158}
 159
 160static inline void debug_dma_assert_idle(struct page *page)
 161{
 162}
 163
 164#endif /* CONFIG_DMA_API_DEBUG */
 165
 166#endif /* __DMA_DEBUG_H */
 167