Linux kernel mirror (for testing)
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linux
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 */