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 
9 struct dma_map_ops;
10 struct device_node;
11 
12 /*
13  * Arch extensions to struct device.
14  *
15  * When adding fields, consider macio_add_one_device in
16  * drivers/macintosh/macio_asic.c
17  */
18 struct dev_archdata {
19 	/* DMA operations on that device */
20 	struct dma_map_ops	*dma_ops;
21 
22 	/*
23 	 * When an iommu is in use, dma_data is used as a ptr to the base of the
24 	 * iommu_table.  Otherwise, it is a simple numerical offset.
25 	 */
26 	union {
27 		dma_addr_t	dma_offset;
28 		void		*iommu_table_base;
29 	} dma_data;
30 
31 #ifdef CONFIG_SWIOTLB
32 	dma_addr_t		max_direct_dma_addr;
33 #endif
34 };
35 
36 struct pdev_archdata {
37 	u64 dma_mask;
38 };
39 
40 #endif /* _ASM_POWERPC_DEVICE_H */
41