projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 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 */ |