1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3  * Arch specific extensions to struct device
4  */
5 #ifndef _ASM_POWERPC_DEVICE_H
6 #define _ASM_POWERPC_DEVICE_H
7 
8 struct device_node;
9 #ifdef CONFIG_PPC64
10 struct pci_dn;
11 struct iommu_table;
12 #endif
13 
14 /*
15  * Arch extensions to struct device.
16  *
17  * When adding fields, consider macio_add_one_device in
18  * drivers/macintosh/macio_asic.c
19  */
20 struct dev_archdata {
21 	/*
22 	 * These two used to be a union. However, with the hybrid ops we need
23 	 * both so here we store both a DMA offset for direct mappings and
24 	 * an iommu_table for remapped DMA.
25 	 */
26 	dma_addr_t		dma_offset;
27 
28 #ifdef CONFIG_PPC64
29 	struct iommu_table	*iommu_table_base;
30 #endif
31 
32 #ifdef CONFIG_PPC64
33 	struct pci_dn		*pci_data;
34 #endif
35 #ifdef CONFIG_EEH
36 	struct eeh_dev		*edev;
37 #endif
38 #ifdef CONFIG_FAIL_IOMMU
39 	int fail_iommu;
40 #endif
41 #ifdef CONFIG_CXL_BASE
42 	struct cxl_context	*cxl_ctx;
43 #endif
44 #ifdef CONFIG_PCI_IOV
45 	void *iov_data;
46 #endif
47 };
48 
49 struct pdev_archdata {
50 	u64 dma_mask;
51 };
52 
53 #endif /* _ASM_POWERPC_DEVICE_H */
54