Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* include this file if the platform implements the dma_ DMA Mapping API |
2 | * and wants to provide the pci_ DMA Mapping API in terms of it */ | |
3 | ||
4 | #ifndef _ASM_GENERIC_PCI_DMA_COMPAT_H | |
5 | #define _ASM_GENERIC_PCI_DMA_COMPAT_H | |
6 | ||
7 | #include <linux/dma-mapping.h> | |
8 | ||
fe537670 BH |
9 | /* This defines the direction arg to the DMA mapping routines. */ |
10 | #define PCI_DMA_BIDIRECTIONAL 0 | |
11 | #define PCI_DMA_TODEVICE 1 | |
12 | #define PCI_DMA_FROMDEVICE 2 | |
13 | #define PCI_DMA_NONE 3 | |
14 | ||
1da177e4 LT |
15 | static inline void * |
16 | pci_alloc_consistent(struct pci_dev *hwdev, size_t size, | |
17 | dma_addr_t *dma_handle) | |
18 | { | |
19 | return dma_alloc_coherent(hwdev == NULL ? NULL : &hwdev->dev, size, dma_handle, GFP_ATOMIC); | |
20 | } | |
21 | ||
82bf0baa JP |
22 | static inline void * |
23 | pci_zalloc_consistent(struct pci_dev *hwdev, size_t size, | |
24 | dma_addr_t *dma_handle) | |
25 | { | |
26 | return dma_zalloc_coherent(hwdev == NULL ? NULL : &hwdev->dev, | |
27 | size, dma_handle, GFP_ATOMIC); | |
28 | } | |
29 | ||
1da177e4 LT |
30 | static inline void |
31 | pci_free_consistent(struct pci_dev *hwdev, size_t size, | |
32 | void *vaddr, dma_addr_t dma_handle) | |
33 | { | |
34 | dma_free_coherent(hwdev == NULL ? NULL : &hwdev->dev, size, vaddr, dma_handle); | |
35 | } | |
36 | ||
37 | static inline dma_addr_t | |
38 | pci_map_single(struct pci_dev *hwdev, void *ptr, size_t size, int direction) | |
39 | { | |
40 | return dma_map_single(hwdev == NULL ? NULL : &hwdev->dev, ptr, size, (enum dma_data_direction)direction); | |
41 | } | |
42 | ||
43 | static inline void | |
44 | pci_unmap_single(struct pci_dev *hwdev, dma_addr_t dma_addr, | |
45 | size_t size, int direction) | |
46 | { | |
47 | dma_unmap_single(hwdev == NULL ? NULL : &hwdev->dev, dma_addr, size, (enum dma_data_direction)direction); | |
48 | } | |
49 | ||
50 | static inline dma_addr_t | |
51 | pci_map_page(struct pci_dev *hwdev, struct page *page, | |
52 | unsigned long offset, size_t size, int direction) | |
53 | { | |
54 | return dma_map_page(hwdev == NULL ? NULL : &hwdev->dev, page, offset, size, (enum dma_data_direction)direction); | |
55 | } | |
56 | ||
57 | static inline void | |
58 | pci_unmap_page(struct pci_dev *hwdev, dma_addr_t dma_address, | |
59 | size_t size, int direction) | |
60 | { | |
61 | dma_unmap_page(hwdev == NULL ? NULL : &hwdev->dev, dma_address, size, (enum dma_data_direction)direction); | |
62 | } | |
63 | ||
64 | static inline int | |
65 | pci_map_sg(struct pci_dev *hwdev, struct scatterlist *sg, | |
66 | int nents, int direction) | |
67 | { | |
68 | return dma_map_sg(hwdev == NULL ? NULL : &hwdev->dev, sg, nents, (enum dma_data_direction)direction); | |
69 | } | |
70 | ||
71 | static inline void | |
72 | pci_unmap_sg(struct pci_dev *hwdev, struct scatterlist *sg, | |
73 | int nents, int direction) | |
74 | { | |
75 | dma_unmap_sg(hwdev == NULL ? NULL : &hwdev->dev, sg, nents, (enum dma_data_direction)direction); | |
76 | } | |
77 | ||
78 | static inline void | |
79 | pci_dma_sync_single_for_cpu(struct pci_dev *hwdev, dma_addr_t dma_handle, | |
80 | size_t size, int direction) | |
81 | { | |
82 | dma_sync_single_for_cpu(hwdev == NULL ? NULL : &hwdev->dev, dma_handle, size, (enum dma_data_direction)direction); | |
83 | } | |
84 | ||
85 | static inline void | |
86 | pci_dma_sync_single_for_device(struct pci_dev *hwdev, dma_addr_t dma_handle, | |
87 | size_t size, int direction) | |
88 | { | |
89 | dma_sync_single_for_device(hwdev == NULL ? NULL : &hwdev->dev, dma_handle, size, (enum dma_data_direction)direction); | |
90 | } | |
91 | ||
92 | static inline void | |
93 | pci_dma_sync_sg_for_cpu(struct pci_dev *hwdev, struct scatterlist *sg, | |
94 | int nelems, int direction) | |
95 | { | |
96 | dma_sync_sg_for_cpu(hwdev == NULL ? NULL : &hwdev->dev, sg, nelems, (enum dma_data_direction)direction); | |
97 | } | |
98 | ||
99 | static inline void | |
100 | pci_dma_sync_sg_for_device(struct pci_dev *hwdev, struct scatterlist *sg, | |
101 | int nelems, int direction) | |
102 | { | |
103 | dma_sync_sg_for_device(hwdev == NULL ? NULL : &hwdev->dev, sg, nelems, (enum dma_data_direction)direction); | |
104 | } | |
105 | ||
106 | static inline int | |
8d8bb39b | 107 | pci_dma_mapping_error(struct pci_dev *pdev, dma_addr_t dma_addr) |
1da177e4 | 108 | { |
8d8bb39b | 109 | return dma_mapping_error(&pdev->dev, dma_addr); |
1da177e4 LT |
110 | } |
111 | ||
5f3cd1e0 FT |
112 | #ifdef CONFIG_PCI |
113 | static inline int pci_set_dma_mask(struct pci_dev *dev, u64 mask) | |
114 | { | |
115 | return dma_set_mask(&dev->dev, mask); | |
116 | } | |
117 | ||
118 | static inline int pci_set_consistent_dma_mask(struct pci_dev *dev, u64 mask) | |
119 | { | |
120 | return dma_set_coherent_mask(&dev->dev, mask); | |
121 | } | |
fe537670 BH |
122 | |
123 | static inline int pci_set_dma_max_seg_size(struct pci_dev *dev, | |
124 | unsigned int size) | |
125 | { | |
126 | return dma_set_max_seg_size(&dev->dev, size); | |
127 | } | |
128 | ||
129 | static inline int pci_set_dma_seg_boundary(struct pci_dev *dev, | |
130 | unsigned long mask) | |
131 | { | |
132 | return dma_set_seg_boundary(&dev->dev, mask); | |
133 | } | |
134 | #else | |
135 | static inline int pci_set_dma_mask(struct pci_dev *dev, u64 mask) | |
136 | { return -EIO; } | |
137 | static inline int pci_set_consistent_dma_mask(struct pci_dev *dev, u64 mask) | |
138 | { return -EIO; } | |
139 | static inline int pci_set_dma_max_seg_size(struct pci_dev *dev, | |
140 | unsigned int size) | |
141 | { return -EIO; } | |
142 | static inline int pci_set_dma_seg_boundary(struct pci_dev *dev, | |
143 | unsigned long mask) | |
144 | { return -EIO; } | |
5f3cd1e0 FT |
145 | #endif |
146 | ||
1da177e4 | 147 | #endif |