This source file includes following definitions.
- pci_alloc_consistent
- pci_zalloc_consistent
- pci_free_consistent
- pci_map_single
- pci_unmap_single
- pci_map_page
- pci_unmap_page
- pci_map_sg
- pci_unmap_sg
- pci_dma_sync_single_for_cpu
- pci_dma_sync_single_for_device
- pci_dma_sync_sg_for_cpu
- pci_dma_sync_sg_for_device
- pci_dma_mapping_error
- pci_set_dma_mask
- pci_set_consistent_dma_mask
- pci_set_dma_mask
- pci_set_consistent_dma_mask
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4
5 #ifndef _ASM_GENERIC_PCI_DMA_COMPAT_H
6 #define _ASM_GENERIC_PCI_DMA_COMPAT_H
7
8 #include <linux/dma-mapping.h>
9
10
11 #define PCI_DMA_BIDIRECTIONAL DMA_BIDIRECTIONAL
12 #define PCI_DMA_TODEVICE DMA_TO_DEVICE
13 #define PCI_DMA_FROMDEVICE DMA_FROM_DEVICE
14 #define PCI_DMA_NONE DMA_NONE
15
16 static inline void *
17 pci_alloc_consistent(struct pci_dev *hwdev, size_t size,
18 dma_addr_t *dma_handle)
19 {
20 return dma_alloc_coherent(&hwdev->dev, size, dma_handle, GFP_ATOMIC);
21 }
22
23 static inline void *
24 pci_zalloc_consistent(struct pci_dev *hwdev, size_t size,
25 dma_addr_t *dma_handle)
26 {
27 return dma_alloc_coherent(&hwdev->dev, size, dma_handle, GFP_ATOMIC);
28 }
29
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->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->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->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->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->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->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->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->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->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->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->dev, sg, nelems, (enum dma_data_direction)direction);
104 }
105
106 static inline int
107 pci_dma_mapping_error(struct pci_dev *pdev, dma_addr_t dma_addr)
108 {
109 return dma_mapping_error(&pdev->dev, dma_addr);
110 }
111
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 }
122 #else
123 static inline int pci_set_dma_mask(struct pci_dev *dev, u64 mask)
124 { return -EIO; }
125 static inline int pci_set_consistent_dma_mask(struct pci_dev *dev, u64 mask)
126 { return -EIO; }
127 #endif
128
129 #endif