LXR linux/arch/powerpc/include/asm/ppc-pci.h

   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/* From rtas_pci.h */
  34extern void init_pci_config_tokens (void);
  35extern unsigned long get_phb_buid (struct device_node *);
  36extern int rtas_setup_phb(struct pci_controller *phb);
  37
  38#ifdef CONFIG_EEH
  39
  40void eeh_addr_cache_insert_dev(struct pci_dev *dev);
  41void eeh_addr_cache_rmv_dev(struct pci_dev *dev);
  42struct eeh_dev *eeh_addr_cache_get_dev(unsigned long addr);
  43void eeh_slot_error_detail(struct eeh_pe *pe, int severity);
  44int eeh_pci_enable(struct eeh_pe *pe, int function);
  45int eeh_pe_reset_full(struct eeh_pe *pe, bool include_passed);
  46void eeh_save_bars(struct eeh_dev *edev);
  47int rtas_write_config(struct pci_dn *, int where, int size, u32 val);
  48int rtas_read_config(struct pci_dn *, int where, int size, u32 *val);
  49void eeh_pe_state_mark(struct eeh_pe *pe, int state);
  50void eeh_pe_mark_isolated(struct eeh_pe *pe);
  51void eeh_pe_state_clear(struct eeh_pe *pe, int state, bool include_passed);
  52void eeh_pe_state_mark_with_cfg(struct eeh_pe *pe, int state);
  53void eeh_pe_dev_mode_mark(struct eeh_pe *pe, int mode);
  54
  55void eeh_sysfs_add_device(struct pci_dev *pdev);
  56void eeh_sysfs_remove_device(struct pci_dev *pdev);
  57
  58static inline const char *eeh_driver_name(struct pci_dev *pdev)
  59{
  60        return (pdev && pdev->driver) ? pdev->driver->name : "<null>";
  61}
  62
  63#endif /* CONFIG_EEH */
  64
  65#define PCI_BUSNO(bdfn) ((bdfn >> 8) & 0xff)
  66
  67#else /* CONFIG_PCI */
  68static inline void init_pci_config_tokens(void) { }
  69#endif /* !CONFIG_PCI */
  70
  71#endif /* __KERNEL__ */
  72#endif /* _ASM_POWERPC_PPC_PCI_H */
  73