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/* pci_impl.h: Helper definitions for PCI controller support.
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*
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* Copyright ( C ) 1999 , 2007 David S . Miller ( davem @ davemloft . net )
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*/
# ifndef PCI_IMPL_H
# define PCI_IMPL_H
# include <linux/types.h>
# include <linux/spinlock.h>
# include <asm/io.h>
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# include <asm/prom.h>
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extern struct pci_controller_info * pci_controller_root ;
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extern unsigned long pci_memspace_mask ;
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extern int pci_num_controllers ;
/* PCI bus scanning and fixup support. */
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extern struct pci_bus * pci_scan_one_pbm ( struct pci_pbm_info * pbm ) ;
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extern void pci_determine_mem_io_space ( struct pci_pbm_info * pbm ) ;
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extern int pci_host_bridge_read_pci_cfg ( struct pci_bus * bus_dev ,
unsigned int devfn ,
int where , int size ,
u32 * value ) ;
extern int pci_host_bridge_write_pci_cfg ( struct pci_bus * bus_dev ,
unsigned int devfn ,
int where , int size ,
u32 value ) ;
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/* Error reporting support. */
extern void pci_scan_for_target_abort ( struct pci_controller_info * , struct pci_pbm_info * , struct pci_bus * ) ;
extern void pci_scan_for_master_abort ( struct pci_controller_info * , struct pci_pbm_info * , struct pci_bus * ) ;
extern void pci_scan_for_parity_error ( struct pci_controller_info * , struct pci_pbm_info * , struct pci_bus * ) ;
/* Configuration space access. */
extern void pci_config_read8 ( u8 * addr , u8 * ret ) ;
extern void pci_config_read16 ( u16 * addr , u16 * ret ) ;
extern void pci_config_read32 ( u32 * addr , u32 * ret ) ;
extern void pci_config_write8 ( u8 * addr , u8 val ) ;
extern void pci_config_write16 ( u16 * addr , u16 val ) ;
extern void pci_config_write32 ( u32 * addr , u32 val ) ;
# endif /* !(PCI_IMPL_H) */