Line data Source code
1 : /*
2 : * Copyright (C) 2008 Advanced Micro Devices, Inc.
3 : *
4 : * Author: Joerg Roedel <joerg.roedel@amd.com>
5 : *
6 : * This program is free software; you can redistribute it and/or modify it
7 : * under the terms of the GNU General Public License version 2 as published
8 : * by the Free Software Foundation.
9 : *
10 : * This program is distributed in the hope that it will be useful,
11 : * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 : * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 : * GNU General Public License for more details.
14 : *
15 : * You should have received a copy of the GNU General Public License
16 : * along with this program; if not, write to the Free Software
17 : * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 : */
19 :
20 : #ifndef __DMA_DEBUG_H
21 : #define __DMA_DEBUG_H
22 :
23 : #include <linux/types.h>
24 :
25 : struct device;
26 : struct scatterlist;
27 : struct bus_type;
28 :
29 : #ifdef CONFIG_DMA_API_DEBUG
30 :
31 : extern void dma_debug_add_bus(struct bus_type *bus);
32 :
33 : extern void dma_debug_init(u32 num_entries);
34 :
35 : extern int dma_debug_resize_entries(u32 num_entries);
36 :
37 : extern void debug_dma_map_page(struct device *dev, struct page *page,
38 : size_t offset, size_t size,
39 : int direction, dma_addr_t dma_addr,
40 : bool map_single);
41 :
42 : extern void debug_dma_unmap_page(struct device *dev, dma_addr_t addr,
43 : size_t size, int direction, bool map_single);
44 :
45 : extern void debug_dma_map_sg(struct device *dev, struct scatterlist *sg,
46 : int nents, int mapped_ents, int direction);
47 :
48 : extern void debug_dma_unmap_sg(struct device *dev, struct scatterlist *sglist,
49 : int nelems, int dir);
50 :
51 : extern void debug_dma_alloc_coherent(struct device *dev, size_t size,
52 : dma_addr_t dma_addr, void *virt);
53 :
54 : extern void debug_dma_free_coherent(struct device *dev, size_t size,
55 : void *virt, dma_addr_t addr);
56 :
57 : extern void debug_dma_sync_single_for_cpu(struct device *dev,
58 : dma_addr_t dma_handle, size_t size,
59 : int direction);
60 :
61 : extern void debug_dma_sync_single_for_device(struct device *dev,
62 : dma_addr_t dma_handle,
63 : size_t size, int direction);
64 :
65 : extern void debug_dma_sync_single_range_for_cpu(struct device *dev,
66 : dma_addr_t dma_handle,
67 : unsigned long offset,
68 : size_t size,
69 : int direction);
70 :
71 : extern void debug_dma_sync_single_range_for_device(struct device *dev,
72 : dma_addr_t dma_handle,
73 : unsigned long offset,
74 : size_t size, int direction);
75 :
76 : extern void debug_dma_sync_sg_for_cpu(struct device *dev,
77 : struct scatterlist *sg,
78 : int nelems, int direction);
79 :
80 : extern void debug_dma_sync_sg_for_device(struct device *dev,
81 : struct scatterlist *sg,
82 : int nelems, int direction);
83 :
84 : extern void debug_dma_dump_mappings(struct device *dev);
85 :
86 : #else /* CONFIG_DMA_API_DEBUG */
87 :
88 : static inline void dma_debug_add_bus(struct bus_type *bus)
89 : {
90 : }
91 :
92 : static inline void dma_debug_init(u32 num_entries)
93 : {
94 : }
95 :
96 : static inline int dma_debug_resize_entries(u32 num_entries)
97 : {
98 : return 0;
99 : }
100 :
101 : static inline void debug_dma_map_page(struct device *dev, struct page *page,
102 : size_t offset, size_t size,
103 230 : int direction, dma_addr_t dma_addr,
104 : bool map_single)
105 : {
106 : }
107 :
108 : static inline void debug_dma_unmap_page(struct device *dev, dma_addr_t addr,
109 : size_t size, int direction,
110 248 : bool map_single)
111 : {
112 : }
113 :
114 : static inline void debug_dma_map_sg(struct device *dev, struct scatterlist *sg,
115 : int nents, int mapped_ents, int direction)
116 : {
117 : }
118 :
119 : static inline void debug_dma_unmap_sg(struct device *dev,
120 : struct scatterlist *sglist,
121 : int nelems, int dir)
122 : {
123 : }
124 :
125 : static inline void debug_dma_alloc_coherent(struct device *dev, size_t size,
126 : dma_addr_t dma_addr, void *virt)
127 2 : {
128 : }
129 :
130 : static inline void debug_dma_free_coherent(struct device *dev, size_t size,
131 : void *virt, dma_addr_t addr)
132 6 : {
133 : }
134 :
135 : static inline void debug_dma_sync_single_for_cpu(struct device *dev,
136 : dma_addr_t dma_handle,
137 20 : size_t size, int direction)
138 : {
139 : }
140 :
141 : static inline void debug_dma_sync_single_for_device(struct device *dev,
142 : dma_addr_t dma_handle,
143 : size_t size, int direction)
144 : {
145 : }
146 :
147 : static inline void debug_dma_sync_single_range_for_cpu(struct device *dev,
148 : dma_addr_t dma_handle,
149 : unsigned long offset,
150 : size_t size,
151 : int direction)
152 : {
153 : }
154 :
155 : static inline void debug_dma_sync_single_range_for_device(struct device *dev,
156 : dma_addr_t dma_handle,
157 : unsigned long offset,
158 : size_t size,
159 : int direction)
160 : {
161 : }
162 :
163 : static inline void debug_dma_sync_sg_for_cpu(struct device *dev,
164 : struct scatterlist *sg,
165 : int nelems, int direction)
166 : {
167 : }
168 :
169 : static inline void debug_dma_sync_sg_for_device(struct device *dev,
170 : struct scatterlist *sg,
171 : int nelems, int direction)
172 : {
173 : }
174 :
175 : static inline void debug_dma_dump_mappings(struct device *dev)
176 : {
177 : }
178 :
179 : #endif /* CONFIG_DMA_API_DEBUG */
180 :
181 : #endif /* __DMA_DEBUG_H */
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