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 struct list_head hose_list; 17 18extern 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 */ 25struct device_node; 26struct pci_dn; 27 28void *pci_traverse_device_nodes(struct device_node *start, 29 void *(*fn)(struct device_node *, void *), 30 void *data); 31extern 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)) 35extern void ppc_iommu_register_device(struct pci_controller *phb); 36extern void ppc_iommu_unregister_device(struct pci_controller *phb); 37#else 38static inline void ppc_iommu_register_device(struct pci_controller *phb) { } 39static inline void ppc_iommu_unregister_device(struct pci_controller *phb) { } 40#endif 41 42 43/* From rtas_pci.h */ 44extern void init_pci_config_tokens (void); 45extern unsigned long get_phb_buid (struct device_node *); 46extern int rtas_setup_phb(struct pci_controller *phb); 47 48int rtas_pci_dn_read_config(struct pci_dn *pdn, int where, int size, u32 *val); 49int rtas_pci_dn_write_config(struct pci_dn *pdn, int where, int size, u32 val); 50 51#ifdef CONFIG_EEH 52 53void eeh_addr_cache_insert_dev(struct pci_dev *dev); 54void eeh_addr_cache_rmv_dev(struct pci_dev *dev); 55struct eeh_dev *eeh_addr_cache_get_dev(unsigned long addr); 56void eeh_slot_error_detail(struct eeh_pe *pe, int severity); 57int eeh_pci_enable(struct eeh_pe *pe, int function); 58int eeh_pe_reset_full(struct eeh_pe *pe, bool include_passed); 59void eeh_save_bars(struct eeh_dev *edev); 60void eeh_pe_state_mark(struct eeh_pe *pe, int state); 61void eeh_pe_mark_isolated(struct eeh_pe *pe); 62void eeh_pe_state_clear(struct eeh_pe *pe, int state, bool include_passed); 63void eeh_pe_state_mark_with_cfg(struct eeh_pe *pe, int state); 64void eeh_pe_dev_mode_mark(struct eeh_pe *pe, int mode); 65 66void eeh_sysfs_add_device(struct pci_dev *pdev); 67void eeh_sysfs_remove_device(struct pci_dev *pdev); 68 69#endif /* CONFIG_EEH */ 70 71#ifdef CONFIG_FSL_ULI1575 72void __init uli_init(void); 73#endif /* CONFIG_FSL_ULI1575 */ 74 75#define PCI_BUSNO(bdfn) ((bdfn >> 8) & 0xff) 76 77#else /* CONFIG_PCI */ 78static inline void init_pci_config_tokens(void) { } 79#endif /* !CONFIG_PCI */ 80 81#if !defined(CONFIG_PCI) || !defined(CONFIG_FSL_ULI1575) 82static 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