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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 device_node;
10#ifdef CONFIG_PPC64
11struct pci_dn;
12struct iommu_table;
13#endif
14
15/*
16 * Arch extensions to struct device.
17 *
18 * When adding fields, consider macio_add_one_device in
19 * drivers/macintosh/macio_asic.c
20 */
21struct dev_archdata {
22 /*
23 * Set to %true if the dma_iommu_ops are requested to use a direct
24 * window instead of dynamically mapping memory.
25 */
26 bool iommu_bypass : 1;
27 /*
28 * These two used to be a union. However, with the hybrid ops we need
29 * both so here we store both a DMA offset for direct mappings and
30 * an iommu_table for remapped DMA.
31 */
32 dma_addr_t dma_offset;
33
34#ifdef CONFIG_PPC64
35 struct iommu_table *iommu_table_base;
36#endif
37
38#ifdef CONFIG_IOMMU_API
39 void *iommu_domain;
40#endif
41#ifdef CONFIG_PPC64
42 struct pci_dn *pci_data;
43#endif
44#ifdef CONFIG_EEH
45 struct eeh_dev *edev;
46#endif
47#ifdef CONFIG_FAIL_IOMMU
48 int fail_iommu;
49#endif
50#ifdef CONFIG_CXL_BASE
51 struct cxl_context *cxl_ctx;
52#endif
53};
54
55struct pdev_archdata {
56 u64 dma_mask;
57};
58
59#endif /* _ASM_POWERPC_DEVICE_H */