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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 */ |
182 |
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