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kernel/linux-rt-4.4.41/arch/powerpc/include/asm/ppc-pci.h 2.75 KB
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  /*
   * c 2001 PPC 64 Team, IBM Corp
   *
   *      This program is free software; you can redistribute it and/or
   *      modify it under the terms of the GNU General Public License
   *      as published by the Free Software Foundation; either version
   *      2 of the License, or (at your option) any later version.
   */
  #ifndef _ASM_POWERPC_PPC_PCI_H
  #define _ASM_POWERPC_PPC_PCI_H
  #ifdef __KERNEL__
  
  #ifdef CONFIG_PCI
  
  #include <linux/pci.h>
  #include <asm/pci-bridge.h>
  
  extern unsigned long isa_io_base;
  
  extern void pci_setup_phb_io(struct pci_controller *hose, int primary);
  extern void pci_setup_phb_io_dynamic(struct pci_controller *hose, int primary);
  
  
  extern struct list_head hose_list;
  
  extern struct pci_dev *isa_bridge_pcidev;	/* may be NULL if no ISA bus */
  
  /** Bus Unit ID macros; get low and hi 32-bits of the 64-bit BUID */
  #define BUID_HI(buid) upper_32_bits(buid)
  #define BUID_LO(buid) lower_32_bits(buid)
  
  /* PCI device_node operations */
  struct device_node;
  struct pci_dn;
  
  typedef void *(*traverse_func)(struct device_node *me, void *data);
  void *traverse_pci_devices(struct device_node *start, traverse_func pre,
  		void *data);
  void *traverse_pci_dn(struct pci_dn *root,
  		      void *(*fn)(struct pci_dn *, void *),
  		      void *data);
  
  extern void pci_devs_phb_init(void);
  extern void pci_devs_phb_init_dynamic(struct pci_controller *phb);
  
  /* From rtas_pci.h */
  extern void init_pci_config_tokens (void);
  extern unsigned long get_phb_buid (struct device_node *);
  extern int rtas_setup_phb(struct pci_controller *phb);
  
  #ifdef CONFIG_EEH
  
  void eeh_addr_cache_insert_dev(struct pci_dev *dev);
  void eeh_addr_cache_rmv_dev(struct pci_dev *dev);
  struct eeh_dev *eeh_addr_cache_get_dev(unsigned long addr);
  void eeh_slot_error_detail(struct eeh_pe *pe, int severity);
  int eeh_pci_enable(struct eeh_pe *pe, int function);
  int eeh_reset_pe(struct eeh_pe *);
  void eeh_save_bars(struct eeh_dev *edev);
  int rtas_write_config(struct pci_dn *, int where, int size, u32 val);
  int rtas_read_config(struct pci_dn *, int where, int size, u32 *val);
  void eeh_pe_state_mark(struct eeh_pe *pe, int state);
  void eeh_pe_state_clear(struct eeh_pe *pe, int state);
  void eeh_pe_state_mark_with_cfg(struct eeh_pe *pe, int state);
  void eeh_pe_dev_mode_mark(struct eeh_pe *pe, int mode);
  
  void eeh_sysfs_add_device(struct pci_dev *pdev);
  void eeh_sysfs_remove_device(struct pci_dev *pdev);
  
  static inline const char *eeh_pci_name(struct pci_dev *pdev) 
  { 
  	return pdev ? pci_name(pdev) : "<null>";
  } 
  
  static inline const char *eeh_driver_name(struct pci_dev *pdev)
  {
  	return (pdev && pdev->driver) ? pdev->driver->name : "<null>";
  }
  
  #endif /* CONFIG_EEH */
  
  #else /* CONFIG_PCI */
  static inline void init_pci_config_tokens(void) { }
  #endif /* !CONFIG_PCI */
  
  #endif /* __KERNEL__ */
  #endif /* _ASM_POWERPC_PPC_PCI_H */