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gerrit-public.fairphone.software / fp2-dev / kernel / msm / a31fba5d68cebf8f5fefd03e079dab94875e25f5 / . / include / linux / dma-debug.h
blob: 4985c6c5237eb890df7ed4b7be63c00563785005 [file] [log] [blame]
Joerg Roedelf2f45e52009-01-09 12:19:52 +0100[diff] [blame]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
Joerg Roedel6bf07872009-01-09 12:54:42 +0100[diff] [blame]23#include <linux/types.h>
24
Joerg Roedelf2f45e52009-01-09 12:19:52 +0100[diff] [blame]25struct device;
Joerg Roedel972aa452009-01-09 14:19:54 +0100[diff] [blame]26struct scatterlist;
Joerg Roedelf2f45e52009-01-09 12:19:52 +0100[diff] [blame]27
Joerg Roedel6bf07872009-01-09 12:54:42 +0100[diff] [blame]28#ifdef CONFIG_DMA_API_DEBUG
29
30extern void dma_debug_init(u32 num_entries);
31
Joerg Roedelf62bc982009-01-09 14:14:49 +0100[diff] [blame]32extern 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
37extern void debug_dma_unmap_page(struct device *dev, dma_addr_t addr,
38 size_t size, int direction, bool map_single);
39
Joerg Roedel972aa452009-01-09 14:19:54 +0100[diff] [blame]40extern void debug_dma_map_sg(struct device *dev, struct scatterlist *sg,
41 int nents, int mapped_ents, int direction);
42
43extern void debug_dma_unmap_sg(struct device *dev, struct scatterlist *sglist,
44 int nelems, int dir);
Joerg Roedelf62bc982009-01-09 14:14:49 +0100[diff] [blame]45
Joerg Roedel6bfd4492009-01-09 14:38:50 +0100[diff] [blame]46extern void debug_dma_alloc_coherent(struct device *dev, size_t size,
47 dma_addr_t dma_addr, void *virt);
48
49extern void debug_dma_free_coherent(struct device *dev, size_t size,
50 void *virt, dma_addr_t addr);
51
Joerg Roedelb9d23172009-01-09 14:43:04 +0100[diff] [blame]52extern void debug_dma_sync_single_for_cpu(struct device *dev,
53 dma_addr_t dma_handle, size_t size,
54 int direction);
55
56extern void debug_dma_sync_single_for_device(struct device *dev,
57 dma_addr_t dma_handle,
58 size_t size, int direction);
59
Joerg Roedel948408b2009-01-09 14:55:38 +0100[diff] [blame]60extern void debug_dma_sync_single_range_for_cpu(struct device *dev,
61 dma_addr_t dma_handle,
62 unsigned long offset,
63 size_t size,
64 int direction);
65
66extern void debug_dma_sync_single_range_for_device(struct device *dev,
67 dma_addr_t dma_handle,
68 unsigned long offset,
69 size_t size, int direction);
70
Joerg Roedela31fba52009-01-09 15:01:12 +0100[diff] [blame^]71extern void debug_dma_sync_sg_for_cpu(struct device *dev,
72 struct scatterlist *sg,
73 int nelems, int direction);
74
75extern void debug_dma_sync_sg_for_device(struct device *dev,
76 struct scatterlist *sg,
77 int nelems, int direction);
78
Joerg Roedel6bf07872009-01-09 12:54:42 +0100[diff] [blame]79#else /* CONFIG_DMA_API_DEBUG */
80
81static inline void dma_debug_init(u32 num_entries)
82{
83}
84
Joerg Roedelf62bc982009-01-09 14:14:49 +0100[diff] [blame]85static inline void debug_dma_map_page(struct device *dev, struct page *page,
86 size_t offset, size_t size,
87 int direction, dma_addr_t dma_addr,
88 bool map_single)
89{
90}
91
92static inline void debug_dma_unmap_page(struct device *dev, dma_addr_t addr,
93 size_t size, int direction,
94 bool map_single)
95{
96}
97
Joerg Roedel972aa452009-01-09 14:19:54 +0100[diff] [blame]98static inline void debug_dma_map_sg(struct device *dev, struct scatterlist *sg,
99 int nents, int mapped_ents, int direction)
100{
101}
102
103static inline void debug_dma_unmap_sg(struct device *dev,
104 struct scatterlist *sglist,
105 int nelems, int dir)
106{
107}
Joerg Roedelf62bc982009-01-09 14:14:49 +0100[diff] [blame]108
Joerg Roedel6bfd4492009-01-09 14:38:50 +0100[diff] [blame]109static inline void debug_dma_alloc_coherent(struct device *dev, size_t size,
110 dma_addr_t dma_addr, void *virt)
111{
112}
113
114static inline void debug_dma_free_coherent(struct device *dev, size_t size,
115 void *virt, dma_addr_t addr)
116{
117}
118
Joerg Roedelb9d23172009-01-09 14:43:04 +0100[diff] [blame]119static inline void debug_dma_sync_single_for_cpu(struct device *dev,
120 dma_addr_t dma_handle,
121 size_t size, int direction)
122{
123}
124
125static inline void debug_dma_sync_single_for_device(struct device *dev,
126 dma_addr_t dma_handle,
127 size_t size, int direction)
128{
129}
130
Joerg Roedel948408b2009-01-09 14:55:38 +0100[diff] [blame]131static inline void debug_dma_sync_single_range_for_cpu(struct device *dev,
132 dma_addr_t dma_handle,
133 unsigned long offset,
134 size_t size,
135 int direction)
136{
137}
138
139static inline void debug_dma_sync_single_range_for_device(struct device *dev,
140 dma_addr_t dma_handle,
141 unsigned long offset,
142 size_t size,
143 int direction)
144{
145}
146
Joerg Roedela31fba52009-01-09 15:01:12 +0100[diff] [blame^]147static inline void debug_dma_sync_sg_for_cpu(struct device *dev,
148 struct scatterlist *sg,
149 int nelems, int direction)
150{
151}
152
153static inline void debug_dma_sync_sg_for_device(struct device *dev,
154 struct scatterlist *sg,
155 int nelems, int direction)
156{
157}
158
Joerg Roedel6bf07872009-01-09 12:54:42 +0100[diff] [blame]159#endif /* CONFIG_DMA_API_DEBUG */
160
Joerg Roedelf2f45e52009-01-09 12:19:52 +0100[diff] [blame]161#endif /* __DMA_DEBUG_H */