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Commit | Line | Data |
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4e0ee78f HD |
1 | #ifndef __OF_IOMMU_H |
2 | #define __OF_IOMMU_H | |
3 | ||
7eba1d51 | 4 | #include <linux/device.h> |
1cd076bf WD |
5 | #include <linux/iommu.h> |
6 | #include <linux/of.h> | |
7 | ||
4e0ee78f HD |
8 | #ifdef CONFIG_OF_IOMMU |
9 | ||
10 | extern int of_get_dma_window(struct device_node *dn, const char *prefix, | |
11 | int index, unsigned long *busno, dma_addr_t *addr, | |
12 | size_t *size); | |
13 | ||
1cd076bf | 14 | extern void of_iommu_init(void); |
7eba1d51 | 15 | extern struct iommu_ops *of_iommu_configure(struct device *dev); |
1cd076bf | 16 | |
4e0ee78f HD |
17 | #else |
18 | ||
19 | static inline int of_get_dma_window(struct device_node *dn, const char *prefix, | |
20 | int index, unsigned long *busno, dma_addr_t *addr, | |
21 | size_t *size) | |
22 | { | |
23 | return -EINVAL; | |
24 | } | |
25 | ||
1cd076bf | 26 | static inline void of_iommu_init(void) { } |
7eba1d51 WD |
27 | static inline struct iommu_ops *of_iommu_configure(struct device *dev) |
28 | { | |
29 | return NULL; | |
30 | } | |
1cd076bf | 31 | |
4e0ee78f HD |
32 | #endif /* CONFIG_OF_IOMMU */ |
33 | ||
1cd076bf WD |
34 | static inline void of_iommu_set_ops(struct device_node *np, |
35 | const struct iommu_ops *ops) | |
36 | { | |
37 | np->data = (struct iommu_ops *)ops; | |
38 | } | |
39 | ||
40 | static inline struct iommu_ops *of_iommu_get_ops(struct device_node *np) | |
41 | { | |
42 | return np->data; | |
43 | } | |
44 | ||
45 | extern struct of_device_id __iommu_of_table; | |
46 | ||
47 | typedef int (*of_iommu_init_fn)(struct device_node *); | |
48 | ||
49 | #define IOMMU_OF_DECLARE(name, compat, fn) \ | |
50 | _OF_DECLARE(iommu, name, compat, fn, of_iommu_init_fn) | |
51 | ||
4e0ee78f | 52 | #endif /* __OF_IOMMU_H */ |