1/* SPDX-License-Identifier: GPL-2.0-or-later */
2/*
3 * c 2001 PPC 64 Team, IBM Corp
4 */
5#ifndef _ASM_POWERPC_PPC_PCI_H
6#define _ASM_POWERPC_PPC_PCI_H
7#ifdef __KERNEL__
8
9#ifdef CONFIG_PCI
10
11#include <linux/pci.h>
12#include <asm/pci-bridge.h>
13
14extern unsigned long isa_io_base;
15
16extern void pci_setup_phb_io(struct pci_controller *hose, int primary);
17extern void pci_setup_phb_io_dynamic(struct pci_controller *hose, int primary);
18
19
20extern struct list_head hose_list;
21
22extern struct pci_dev *isa_bridge_pcidev;	/* may be NULL if no ISA bus */
23
24/** Bus Unit ID macros; get low and hi 32-bits of the 64-bit BUID */
25#define BUID_HI(buid) upper_32_bits(buid)
26#define BUID_LO(buid) lower_32_bits(buid)
27
28/* PCI device_node operations */
29struct device_node;
30struct pci_dn;
31
32void *pci_traverse_device_nodes(struct device_node *start,
33				void *(*fn)(struct device_node *, void *),
34				void *data);
35void *traverse_pci_dn(struct pci_dn *root,
36		      void *(*fn)(struct pci_dn *, void *),
37		      void *data);
38extern void pci_devs_phb_init_dynamic(struct pci_controller *phb);
39
40/* From rtas_pci.h */
41extern void init_pci_config_tokens (void);
42extern unsigned long get_phb_buid (struct device_node *);
43extern int rtas_setup_phb(struct pci_controller *phb);
44
45#ifdef CONFIG_EEH
46
47void eeh_addr_cache_insert_dev(struct pci_dev *dev);
48void eeh_addr_cache_rmv_dev(struct pci_dev *dev);
49struct eeh_dev *eeh_addr_cache_get_dev(unsigned long addr);
50void eeh_slot_error_detail(struct eeh_pe *pe, int severity);
51int eeh_pci_enable(struct eeh_pe *pe, int function);
52int eeh_pe_reset_full(struct eeh_pe *pe, bool include_passed);
53void eeh_save_bars(struct eeh_dev *edev);
54int rtas_write_config(struct pci_dn *, int where, int size, u32 val);
55int rtas_read_config(struct pci_dn *, int where, int size, u32 *val);
56void eeh_pe_state_mark(struct eeh_pe *pe, int state);
57void eeh_pe_mark_isolated(struct eeh_pe *pe);
58void eeh_pe_state_clear(struct eeh_pe *pe, int state, bool include_passed);
59void eeh_pe_state_mark_with_cfg(struct eeh_pe *pe, int state);
60void eeh_pe_dev_mode_mark(struct eeh_pe *pe, int mode);
61
62void eeh_sysfs_add_device(struct pci_dev *pdev);
63void eeh_sysfs_remove_device(struct pci_dev *pdev);
64
65static inline const char *eeh_driver_name(struct pci_dev *pdev)
66{
67	return (pdev && pdev->driver) ? pdev->driver->name : "<null>";
68}
69
70#endif /* CONFIG_EEH */
71
72#define PCI_BUSNO(bdfn) ((bdfn >> 8) & 0xff)
73
74#else /* CONFIG_PCI */
75static inline void init_pci_config_tokens(void) { }
76#endif /* !CONFIG_PCI */
77
78#endif /* __KERNEL__ */
79#endif /* _ASM_POWERPC_PPC_PCI_H */
80