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 38 static inline void ppc_iommu_register_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 #ifdef CONFIG_EEH 49 50 void eeh_addr_cache_insert_dev(struct pci_dev *dev); 51 void eeh_addr_cache_rmv_dev(struct pci_dev *dev); 52 struct eeh_dev *eeh_addr_cache_get_dev(unsigned long addr); 53 void eeh_slot_error_detail(struct eeh_pe *pe, int severity); 54 int eeh_pci_enable(struct eeh_pe *pe, int function); 55 int eeh_pe_reset_full(struct eeh_pe *pe, bool include_passed); 56 void eeh_save_bars(struct eeh_dev *edev); 57 int rtas_write_config(struct pci_dn *, int where, int size, u32 val); 58 int rtas_read_config(struct pci_dn *, int where, int size, u32 *val); 59 void eeh_pe_state_mark(struct eeh_pe *pe, int state); 60 void eeh_pe_mark_isolated(struct eeh_pe *pe); 61 void eeh_pe_state_clear(struct eeh_pe *pe, int state, bool include_passed); 62 void eeh_pe_state_mark_with_cfg(struct eeh_pe *pe, int state); 63 void eeh_pe_dev_mode_mark(struct eeh_pe *pe, int mode); 64 65 void eeh_sysfs_add_device(struct pci_dev *pdev); 66 void eeh_sysfs_remove_device(struct pci_dev *pdev); 67 68 #endif /* CONFIG_EEH */ 69 70 #ifdef CONFIG_FSL_ULI1575 71 void __init uli_init(void); 72 #endif /* CONFIG_FSL_ULI1575 */ 73 74 #define PCI_BUSNO(bdfn) ((bdfn >> 8) & 0xff) 75 76 #else /* CONFIG_PCI */ 77 static inline void init_pci_config_tokens(void) { } 78 #endif /* !CONFIG_PCI */ 79 80 #if !defined(CONFIG_PCI) || !defined(CONFIG_FSL_ULI1575) 81 static inline void __init uli_init(void) {} 82 #endif /* !defined(CONFIG_PCI) || !defined(CONFIG_FSL_ULI1575) */ 83 84 #endif /* __KERNEL__ */ 85 #endif /* _ASM_POWERPC_PPC_PCI_H */ 86