tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * Arch specific extensions to struct device
3 *
4 * This file is released under the GPLv2
5 */
6#ifndef _ASM_POWERPC_DEVICE_H
7#define _ASM_POWERPC_DEVICE_H
8
9struct dma_map_ops;
10struct device_node;
11
12struct dev_archdata {
13 /* Optional pointer to an OF device node */
14 struct device_node *of_node;
15
16 /* DMA operations on that device */
17 struct dma_map_ops *dma_ops;
18
19 /*
20 * When an iommu is in use, dma_data is used as a ptr to the base of the
21 * iommu_table. Otherwise, it is a simple numerical offset.
22 */
23 union {
24 dma_addr_t dma_offset;
25 void *iommu_table_base;
26 } dma_data;
27
28#ifdef CONFIG_SWIOTLB
29 dma_addr_t max_direct_dma_addr;
30#endif
31};
32
33static inline void dev_archdata_set_node(struct dev_archdata *ad,
34 struct device_node *np)
35{
36 ad->of_node = np;
37}
38
39static inline struct device_node *
40dev_archdata_get_node(const struct dev_archdata *ad)
41{
42 return ad->of_node;
43}
44
45struct pdev_archdata {
46};
47
48#endif /* _ASM_POWERPC_DEVICE_H */