mfd: twl6025: resolve compilation time warnings
[linux-2.6.git] / include / linux / dma-debug.h
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                                       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                                         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 {
128 }
129
130 static inline void debug_dma_free_coherent(struct device *dev, size_t size,
131                                            void *virt, dma_addr_t addr)
132 {
133 }
134
135 static inline void debug_dma_sync_single_for_cpu(struct device *dev,
136                                                  dma_addr_t dma_handle,
137                                                  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 */