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			       unsigned long attrs);
 16
 17extern void debug_dma_unmap_page(struct device *dev, dma_addr_t addr,
 18				 size_t size, int direction);
 19
 20extern void debug_dma_map_sg(struct device *dev, struct scatterlist *sg,
 21			     int nents, int mapped_ents, int direction,
 22			     unsigned long attrs);
 23
 24extern void debug_dma_unmap_sg(struct device *dev, struct scatterlist *sglist,
 25			       int nelems, int dir);
 26
 27extern void debug_dma_alloc_coherent(struct device *dev, size_t size,
 28				     dma_addr_t dma_addr, void *virt,
 29				     unsigned long attrs);
 30
 31extern void debug_dma_free_coherent(struct device *dev, size_t size,
 32				    void *virt, dma_addr_t addr);
 33
 34extern 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
 39extern void debug_dma_unmap_resource(struct device *dev, dma_addr_t dma_addr,
 40				     size_t size, int direction);
 41
 42extern void debug_dma_sync_single_for_cpu(struct device *dev,
 43					  dma_addr_t dma_handle, size_t size,
 44					  int direction);
 45
 46extern void debug_dma_sync_single_for_device(struct device *dev,
 47					     dma_addr_t dma_handle,
 48					     size_t size, int direction);
 49
 50extern void debug_dma_sync_sg_for_cpu(struct device *dev,
 51				      struct scatterlist *sg,
 52				      int nelems, int direction);
 53
 54extern 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 */
 58static 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
 65static inline void debug_dma_unmap_page(struct device *dev, dma_addr_t addr,
 66					size_t size, int direction)
 67{
 68}
 69
 70static 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
 76static inline void debug_dma_unmap_sg(struct device *dev,
 77				      struct scatterlist *sglist,
 78				      int nelems, int dir)
 79{
 80}
 81
 82static 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
 88static inline void debug_dma_free_coherent(struct device *dev, size_t size,
 89					   void *virt, dma_addr_t addr)
 90{
 91}
 92
 93static 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
100static inline void debug_dma_unmap_resource(struct device *dev,
101					    dma_addr_t dma_addr, size_t size,
102					    int direction)
103{
104}
105
106static 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
112static 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
118static inline void debug_dma_sync_sg_for_cpu(struct device *dev,
119					     struct scatterlist *sg,
120					     int nelems, int direction)
121{
122}
123
124static 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 */