/arch/powerpc/include/asm/device.h

 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
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 */
18struct 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#ifdef CONFIG_EEH
35	struct eeh_dev		*edev;
36#endif
37};
38
39struct pdev_archdata {
40	u64 dma_mask;
41};
42
43#define ARCH_HAS_DMA_GET_REQUIRED_MASK
44
45#endif /* _ASM_POWERPC_DEVICE_H */