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 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 */ 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