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 struct list_head hose_list;
17
18 extern struct pci_dev *isa_bridge_pcidev; /* may be NULL if no ISA bus */
19
20 /** Bus Unit ID macros; get low and hi 32-bits of the 64-bit BUID */
21 #define BUID_HI(buid) upper_32_bits(buid)
22 #define BUID_LO(buid) lower_32_bits(buid)
23
24 /* PCI device_node operations */
25 struct device_node;
26 struct pci_dn;
27
28 void *pci_traverse_device_nodes(struct device_node *start,
29 void *(*fn)(struct device_node *, void *),
30 void *data);
31 extern void pci_devs_phb_init_dynamic(struct pci_controller *phb);
32
33 #if defined(CONFIG_IOMMU_API) && (defined(CONFIG_PPC_PSERIES) || \
34 defined(CONFIG_PPC_POWERNV))
35 extern void ppc_iommu_register_device(struct pci_controller *phb);
36 extern void ppc_iommu_unregister_device(struct pci_controller *phb);
37 #else
ppc_iommu_register_device(struct pci_controller * phb)38 static inline void ppc_iommu_register_device(struct pci_controller *phb) { }
ppc_iommu_unregister_device(struct pci_controller * phb)39 static inline void ppc_iommu_unregister_device(struct pci_controller *phb) { }
40 #endif
41
42
43 /* From rtas_pci.h */
44 extern void init_pci_config_tokens (void);
45 extern unsigned long get_phb_buid (struct device_node *);
46 extern int rtas_setup_phb(struct pci_controller *phb);
47
48 int rtas_pci_dn_read_config(struct pci_dn *pdn, int where, int size, u32 *val);
49 int rtas_pci_dn_write_config(struct pci_dn *pdn, int where, int size, u32 val);
50
51 #ifdef CONFIG_EEH
52
53 void eeh_addr_cache_insert_dev(struct pci_dev *dev);
54 void eeh_addr_cache_rmv_dev(struct pci_dev *dev);
55 struct eeh_dev *eeh_addr_cache_get_dev(unsigned long addr);
56 void eeh_slot_error_detail(struct eeh_pe *pe, int severity);
57 int eeh_pci_enable(struct eeh_pe *pe, int function);
58 int eeh_pe_reset_full(struct eeh_pe *pe, bool include_passed);
59 void eeh_save_bars(struct eeh_dev *edev);
60 void eeh_pe_state_mark(struct eeh_pe *pe, int state);
61 void eeh_pe_mark_isolated(struct eeh_pe *pe);
62 void eeh_pe_state_clear(struct eeh_pe *pe, int state, bool include_passed);
63 void eeh_pe_state_mark_with_cfg(struct eeh_pe *pe, int state);
64 void eeh_pe_dev_mode_mark(struct eeh_pe *pe, int mode);
65
66 void eeh_sysfs_add_device(struct pci_dev *pdev);
67 void eeh_sysfs_remove_device(struct pci_dev *pdev);
68
69 #endif /* CONFIG_EEH */
70
71 #ifdef CONFIG_FSL_ULI1575
72 void __init uli_init(void);
73 #endif /* CONFIG_FSL_ULI1575 */
74
75 #define PCI_BUSNO(bdfn) ((bdfn >> 8) & 0xff)
76
77 #else /* CONFIG_PCI */
init_pci_config_tokens(void)78 static inline void init_pci_config_tokens(void) { }
79 #endif /* !CONFIG_PCI */
80
81 #if !defined(CONFIG_PCI) || !defined(CONFIG_FSL_ULI1575)
uli_init(void)82 static inline void __init uli_init(void) {}
83 #endif /* !defined(CONFIG_PCI) || !defined(CONFIG_FSL_ULI1575) */
84
85 #endif /* __KERNEL__ */
86 #endif /* _ASM_POWERPC_PPC_PCI_H */
87