LXR linux/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
  12extern 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
  16extern void debug_dma_unmap_page(struct device *dev, dma_addr_t addr,
  17                                 size_t size, int direction);
  18
  19extern void debug_dma_map_sg(struct device *dev, struct scatterlist *sg,
  20                             int nents, int mapped_ents, int direction);
  21
  22extern void debug_dma_unmap_sg(struct device *dev, struct scatterlist *sglist,
  23                               int nelems, int dir);
  24
  25extern void debug_dma_alloc_coherent(struct device *dev, size_t size,
  26                                     dma_addr_t dma_addr, void *virt);
  27
  28extern void debug_dma_free_coherent(struct device *dev, size_t size,
  29                                    void *virt, dma_addr_t addr);
  30
  31extern 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
  35extern void debug_dma_unmap_resource(struct device *dev, dma_addr_t dma_addr,
  36                                     size_t size, int direction);
  37
  38extern void debug_dma_sync_single_for_cpu(struct device *dev,
  39                                          dma_addr_t dma_handle, size_t size,
  40                                          int direction);
  41
  42extern void debug_dma_sync_single_for_device(struct device *dev,
  43                                             dma_addr_t dma_handle,
  44                                             size_t size, int direction);
  45
  46extern void debug_dma_sync_sg_for_cpu(struct device *dev,
  47                                      struct scatterlist *sg,
  48                                      int nelems, int direction);
  49
  50extern 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 */
  54static 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
  60static inline void debug_dma_unmap_page(struct device *dev, dma_addr_t addr,
  61                                        size_t size, int direction)
  62{
  63}
  64
  65static inline void debug_dma_map_sg(struct device *dev, struct scatterlist *sg,
  66                                    int nents, int mapped_ents, int direction)
  67{
  68}
  69
  70static inline void debug_dma_unmap_sg(struct device *dev,
  71                                      struct scatterlist *sglist,
  72                                      int nelems, int dir)
  73{
  74}
  75
  76static inline void debug_dma_alloc_coherent(struct device *dev, size_t size,
  77                                            dma_addr_t dma_addr, void *virt)
  78{
  79}
  80
  81static inline void debug_dma_free_coherent(struct device *dev, size_t size,
  82                                           void *virt, dma_addr_t addr)
  83{
  84}
  85
  86static 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
  92static inline void debug_dma_unmap_resource(struct device *dev,
  93                                            dma_addr_t dma_addr, size_t size,
  94                                            int direction)
  95{
  96}
  97
  98static 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
 104static 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
 110static inline void debug_dma_sync_sg_for_cpu(struct device *dev,
 111                                             struct scatterlist *sg,
 112                                             int nelems, int direction)
 113{
 114}
 115
 116static 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 */
 123