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f2f45e5f JR |
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 | ||
6bf07871 JR |
23 | #include <linux/types.h> |
24 | ||
f2f45e5f | 25 | struct device; |
972aa45c | 26 | struct scatterlist; |
41531c8f | 27 | struct bus_type; |
f2f45e5f | 28 | |
6bf07871 JR |
29 | #ifdef CONFIG_DMA_API_DEBUG |
30 | ||
41531c8f JR |
31 | extern void dma_debug_add_bus(struct bus_type *bus); |
32 | ||
6bf07871 JR |
33 | extern void dma_debug_init(u32 num_entries); |
34 | ||
f62bc980 JR |
35 | extern void debug_dma_map_page(struct device *dev, struct page *page, |
36 | size_t offset, size_t size, | |
37 | int direction, dma_addr_t dma_addr, | |
38 | bool map_single); | |
39 | ||
40 | extern void debug_dma_unmap_page(struct device *dev, dma_addr_t addr, | |
41 | size_t size, int direction, bool map_single); | |
42 | ||
972aa45c JR |
43 | extern void debug_dma_map_sg(struct device *dev, struct scatterlist *sg, |
44 | int nents, int mapped_ents, int direction); | |
45 | ||
46 | extern void debug_dma_unmap_sg(struct device *dev, struct scatterlist *sglist, | |
47 | int nelems, int dir); | |
f62bc980 | 48 | |
6bfd4498 JR |
49 | extern void debug_dma_alloc_coherent(struct device *dev, size_t size, |
50 | dma_addr_t dma_addr, void *virt); | |
51 | ||
52 | extern void debug_dma_free_coherent(struct device *dev, size_t size, | |
53 | void *virt, dma_addr_t addr); | |
54 | ||
b9d2317e JR |
55 | extern void debug_dma_sync_single_for_cpu(struct device *dev, |
56 | dma_addr_t dma_handle, size_t size, | |
57 | int direction); | |
58 | ||
59 | extern void debug_dma_sync_single_for_device(struct device *dev, | |
60 | dma_addr_t dma_handle, | |
61 | size_t size, int direction); | |
62 | ||
948408ba JR |
63 | extern void debug_dma_sync_single_range_for_cpu(struct device *dev, |
64 | dma_addr_t dma_handle, | |
65 | unsigned long offset, | |
66 | size_t size, | |
67 | int direction); | |
68 | ||
69 | extern void debug_dma_sync_single_range_for_device(struct device *dev, | |
70 | dma_addr_t dma_handle, | |
71 | unsigned long offset, | |
72 | size_t size, int direction); | |
73 | ||
a31fba5d JR |
74 | extern void debug_dma_sync_sg_for_cpu(struct device *dev, |
75 | struct scatterlist *sg, | |
76 | int nelems, int direction); | |
77 | ||
78 | extern void debug_dma_sync_sg_for_device(struct device *dev, | |
79 | struct scatterlist *sg, | |
80 | int nelems, int direction); | |
81 | ||
ac26c18b DW |
82 | extern void debug_dma_dump_mappings(struct device *dev); |
83 | ||
6bf07871 JR |
84 | #else /* CONFIG_DMA_API_DEBUG */ |
85 | ||
84be58d4 | 86 | static inline void dma_debug_add_bus(struct bus_type *bus) |
41531c8f JR |
87 | { |
88 | } | |
89 | ||
6bf07871 JR |
90 | static inline void dma_debug_init(u32 num_entries) |
91 | { | |
92 | } | |
93 | ||
f62bc980 JR |
94 | static inline void debug_dma_map_page(struct device *dev, struct page *page, |
95 | size_t offset, size_t size, | |
96 | int direction, dma_addr_t dma_addr, | |
97 | bool map_single) | |
98 | { | |
99 | } | |
100 | ||
101 | static inline void debug_dma_unmap_page(struct device *dev, dma_addr_t addr, | |
102 | size_t size, int direction, | |
103 | bool map_single) | |
104 | { | |
105 | } | |
106 | ||
972aa45c JR |
107 | static inline void debug_dma_map_sg(struct device *dev, struct scatterlist *sg, |
108 | int nents, int mapped_ents, int direction) | |
109 | { | |
110 | } | |
111 | ||
112 | static inline void debug_dma_unmap_sg(struct device *dev, | |
113 | struct scatterlist *sglist, | |
114 | int nelems, int dir) | |
115 | { | |
116 | } | |
f62bc980 | 117 | |
6bfd4498 JR |
118 | static inline void debug_dma_alloc_coherent(struct device *dev, size_t size, |
119 | dma_addr_t dma_addr, void *virt) | |
120 | { | |
121 | } | |
122 | ||
123 | static inline void debug_dma_free_coherent(struct device *dev, size_t size, | |
124 | void *virt, dma_addr_t addr) | |
125 | { | |
126 | } | |
127 | ||
b9d2317e JR |
128 | static inline void debug_dma_sync_single_for_cpu(struct device *dev, |
129 | dma_addr_t dma_handle, | |
130 | size_t size, int direction) | |
131 | { | |
132 | } | |
133 | ||
134 | static inline void debug_dma_sync_single_for_device(struct device *dev, | |
135 | dma_addr_t dma_handle, | |
136 | size_t size, int direction) | |
137 | { | |
138 | } | |
139 | ||
948408ba JR |
140 | static inline void debug_dma_sync_single_range_for_cpu(struct device *dev, |
141 | dma_addr_t dma_handle, | |
142 | unsigned long offset, | |
143 | size_t size, | |
144 | int direction) | |
145 | { | |
146 | } | |
147 | ||
148 | static inline void debug_dma_sync_single_range_for_device(struct device *dev, | |
149 | dma_addr_t dma_handle, | |
150 | unsigned long offset, | |
151 | size_t size, | |
152 | int direction) | |
153 | { | |
154 | } | |
155 | ||
a31fba5d JR |
156 | static inline void debug_dma_sync_sg_for_cpu(struct device *dev, |
157 | struct scatterlist *sg, | |
158 | int nelems, int direction) | |
159 | { | |
160 | } | |
161 | ||
162 | static inline void debug_dma_sync_sg_for_device(struct device *dev, | |
163 | struct scatterlist *sg, | |
164 | int nelems, int direction) | |
165 | { | |
166 | } | |
167 | ||
ac26c18b DW |
168 | static inline void debug_dma_dump_mappings(struct device *dev) |
169 | { | |
170 | } | |
171 | ||
6bf07871 JR |
172 | #endif /* CONFIG_DMA_API_DEBUG */ |
173 | ||
f2f45e5f | 174 | #endif /* __DMA_DEBUG_H */ |