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 void pci_setup_phb_io(struct pci_controller *hose, int primary);
  17extern void pci_setup_phb_io_dynamic(struct pci_controller *hose, int primary);
  18
  19
  20extern struct list_head hose_list;
  21
  22extern 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 */
  29struct device_node;
  30struct pci_dn;
  31
  32void *pci_traverse_device_nodes(struct device_node *start,
  33                                void *(*fn)(struct device_node *, void *),
  34                                void *data);
  35void *traverse_pci_dn(struct pci_dn *root,
  36                      void *(*fn)(struct pci_dn *, void *),
  37                      void *data);
  38extern void pci_devs_phb_init_dynamic(struct pci_controller *phb);
  39
  40/* From rtas_pci.h */
  41extern void init_pci_config_tokens (void);
  42extern unsigned long get_phb_buid (struct device_node *);
  43extern int rtas_setup_phb(struct pci_controller *phb);
  44
  45#ifdef CONFIG_EEH
  46
  47void eeh_addr_cache_insert_dev(struct pci_dev *dev);
  48void eeh_addr_cache_rmv_dev(struct pci_dev *dev);
  49struct eeh_dev *eeh_addr_cache_get_dev(unsigned long addr);
  50void eeh_slot_error_detail(struct eeh_pe *pe, int severity);
  51int eeh_pci_enable(struct eeh_pe *pe, int function);
  52int eeh_pe_reset_full(struct eeh_pe *pe, bool include_passed);
  53void eeh_save_bars(struct eeh_dev *edev);
  54int rtas_write_config(struct pci_dn *, int where, int size, u32 val);
  55int rtas_read_config(struct pci_dn *, int where, int size, u32 *val);
  56void eeh_pe_state_mark(struct eeh_pe *pe, int state);
  57void eeh_pe_mark_isolated(struct eeh_pe *pe);
  58void eeh_pe_state_clear(struct eeh_pe *pe, int state, bool include_passed);
  59void eeh_pe_state_mark_with_cfg(struct eeh_pe *pe, int state);
  60void eeh_pe_dev_mode_mark(struct eeh_pe *pe, int mode);
  61
  62void eeh_sysfs_add_device(struct pci_dev *pdev);
  63void eeh_sysfs_remove_device(struct pci_dev *pdev);
  64
  65static inline const char *eeh_pci_name(struct pci_dev *pdev) 
  66{ 
  67        return pdev ? pci_name(pdev) : "<null>";
  68} 
  69
  70static inline const char *eeh_driver_name(struct pci_dev *pdev)
  71{
  72        return (pdev && pdev->driver) ? pdev->driver->name : "<null>";
  73}
  74
  75#endif /* CONFIG_EEH */
  76
  77#else /* CONFIG_PCI */
  78static inline void init_pci_config_tokens(void) { }
  79#endif /* !CONFIG_PCI */
  80
  81#endif /* __KERNEL__ */
  82#endif /* _ASM_POWERPC_PPC_PCI_H */
  83