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
14 extern unsigned long isa_io_base;
15
16 extern void pci_setup_phb_io(struct pci_controller *hose, int primary);
17 extern void pci_setup_phb_io_dynamic(struct pci_controller *hose, int primary);
18
19
20 extern struct list_head hose_list;
21
22 extern 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 */
29 struct device_node;
30 struct pci_dn;
31
32 void *pci_traverse_device_nodes(struct device_node *start,
33 void *(*fn)(struct device_node *, void *),
34 void *data);
35 void *traverse_pci_dn(struct pci_dn *root,
36 void *(*fn)(struct pci_dn *, void *),
37 void *data);
38 extern void pci_devs_phb_init_dynamic(struct pci_controller *phb);
39
40 /* From rtas_pci.h */
41 extern void init_pci_config_tokens (void);
42 extern unsigned long get_phb_buid (struct device_node *);
43 extern int rtas_setup_phb(struct pci_controller *phb);
44
45 #ifdef CONFIG_EEH
46
47 void eeh_addr_cache_insert_dev(struct pci_dev *dev);
48 void eeh_addr_cache_rmv_dev(struct pci_dev *dev);
49 struct eeh_dev *eeh_addr_cache_get_dev(unsigned long addr);
50 void eeh_slot_error_detail(struct eeh_pe *pe, int severity);
51 int eeh_pci_enable(struct eeh_pe *pe, int function);
52 int eeh_pe_reset_full(struct eeh_pe *pe, bool include_passed);
53 void eeh_save_bars(struct eeh_dev *edev);
54 int rtas_write_config(struct pci_dn *, int where, int size, u32 val);
55 int rtas_read_config(struct pci_dn *, int where, int size, u32 *val);
56 void eeh_pe_state_mark(struct eeh_pe *pe, int state);
57 void eeh_pe_mark_isolated(struct eeh_pe *pe);
58 void eeh_pe_state_clear(struct eeh_pe *pe, int state, bool include_passed);
59 void eeh_pe_state_mark_with_cfg(struct eeh_pe *pe, int state);
60 void eeh_pe_dev_mode_mark(struct eeh_pe *pe, int mode);
61
62 void eeh_sysfs_add_device(struct pci_dev *pdev);
63 void eeh_sysfs_remove_device(struct pci_dev *pdev);
64
eeh_driver_name(struct pci_dev * pdev)65 static 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 */
init_pci_config_tokens(void)75 static inline void init_pci_config_tokens(void) { }
76 #endif /* !CONFIG_PCI */
77
78 #endif /* __KERNEL__ */
79 #endif /* _ASM_POWERPC_PPC_PCI_H */
80
