device.h

 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
 8struct device_node;
 9#ifdef CONFIG_PPC64
10struct pci_dn;
11struct 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 */
20struct 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_PCI_IOV
42	void *iov_data;
43#endif
44};
45
46struct pdev_archdata {
47	u64 dma_mask;
48	/*
49	 * Pointer to nvdimm_pmu structure, to handle the unregistering
50	 * of pmu device
51	 */
52	void *priv;
53};
54
55#endif /* _ASM_POWERPC_DEVICE_H */