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Commit | Line | Data |
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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
4e0ee78f HD |
2 | #ifndef __OF_IOMMU_H |
3 | #define __OF_IOMMU_H | |
4 | ||
7eba1d51 | 5 | #include <linux/device.h> |
1cd076bf WD |
6 | #include <linux/iommu.h> |
7 | #include <linux/of.h> | |
8 | ||
4e0ee78f HD |
9 | #ifdef CONFIG_OF_IOMMU |
10 | ||
11 | extern int of_get_dma_window(struct device_node *dn, const char *prefix, | |
12 | int index, unsigned long *busno, dma_addr_t *addr, | |
13 | size_t *size); | |
14 | ||
53c92d79 | 15 | extern const struct iommu_ops *of_iommu_configure(struct device *dev, |
a081bd4a LP |
16 | struct device_node *master_np, |
17 | const u32 *id); | |
1cd076bf | 18 | |
4e0ee78f HD |
19 | #else |
20 | ||
21 | static inline int of_get_dma_window(struct device_node *dn, const char *prefix, | |
22 | int index, unsigned long *busno, dma_addr_t *addr, | |
23 | size_t *size) | |
24 | { | |
25 | return -EINVAL; | |
26 | } | |
27 | ||
53c92d79 | 28 | static inline const struct iommu_ops *of_iommu_configure(struct device *dev, |
a081bd4a LP |
29 | struct device_node *master_np, |
30 | const u32 *id) | |
7eba1d51 WD |
31 | { |
32 | return NULL; | |
33 | } | |
1cd076bf | 34 | |
4e0ee78f HD |
35 | #endif /* CONFIG_OF_IOMMU */ |
36 | ||
37 | #endif /* __OF_IOMMU_H */ |