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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; |
f2f45e5f | 27 | |
6bf07871 JR |
28 | #ifdef CONFIG_DMA_API_DEBUG |
29 | ||
30 | extern void dma_debug_init(u32 num_entries); | |
31 | ||
f62bc980 JR |
32 | extern void debug_dma_map_page(struct device *dev, struct page *page, |
33 | size_t offset, size_t size, | |
34 | int direction, dma_addr_t dma_addr, | |
35 | bool map_single); | |
36 | ||
37 | extern void debug_dma_unmap_page(struct device *dev, dma_addr_t addr, | |
38 | size_t size, int direction, bool map_single); | |
39 | ||
972aa45c JR |
40 | extern void debug_dma_map_sg(struct device *dev, struct scatterlist *sg, |
41 | int nents, int mapped_ents, int direction); | |
42 | ||
43 | extern void debug_dma_unmap_sg(struct device *dev, struct scatterlist *sglist, | |
44 | int nelems, int dir); | |
f62bc980 | 45 | |
6bfd4498 JR |
46 | extern void debug_dma_alloc_coherent(struct device *dev, size_t size, |
47 | dma_addr_t dma_addr, void *virt); | |
48 | ||
49 | extern void debug_dma_free_coherent(struct device *dev, size_t size, | |
50 | void *virt, dma_addr_t addr); | |
51 | ||
6bf07871 JR |
52 | #else /* CONFIG_DMA_API_DEBUG */ |
53 | ||
54 | static inline void dma_debug_init(u32 num_entries) | |
55 | { | |
56 | } | |
57 | ||
f62bc980 JR |
58 | static inline void debug_dma_map_page(struct device *dev, struct page *page, |
59 | size_t offset, size_t size, | |
60 | int direction, dma_addr_t dma_addr, | |
61 | bool map_single) | |
62 | { | |
63 | } | |
64 | ||
65 | static inline void debug_dma_unmap_page(struct device *dev, dma_addr_t addr, | |
66 | size_t size, int direction, | |
67 | bool map_single) | |
68 | { | |
69 | } | |
70 | ||
972aa45c JR |
71 | static inline void debug_dma_map_sg(struct device *dev, struct scatterlist *sg, |
72 | int nents, int mapped_ents, int direction) | |
73 | { | |
74 | } | |
75 | ||
76 | static inline void debug_dma_unmap_sg(struct device *dev, | |
77 | struct scatterlist *sglist, | |
78 | int nelems, int dir) | |
79 | { | |
80 | } | |
f62bc980 | 81 | |
6bfd4498 JR |
82 | static inline void debug_dma_alloc_coherent(struct device *dev, size_t size, |
83 | dma_addr_t dma_addr, void *virt) | |
84 | { | |
85 | } | |
86 | ||
87 | static inline void debug_dma_free_coherent(struct device *dev, size_t size, | |
88 | void *virt, dma_addr_t addr) | |
89 | { | |
90 | } | |
91 | ||
6bf07871 JR |
92 | #endif /* CONFIG_DMA_API_DEBUG */ |
93 | ||
f2f45e5f | 94 | #endif /* __DMA_DEBUG_H */ |