/*
   * linux/include/asm-generic/pci.h
   *
   *  Copyright (C) 2003 Russell King
   */
  #ifndef _ASM_GENERIC_PCI_H
  #define _ASM_GENERIC_PCI_H
  
  /**
   * pcibios_resource_to_bus - convert resource to PCI bus address
   * @dev: device which owns this resource
   * @region: converted bus-centric region (start,end)
   * @res: resource to convert
   *
   * Convert a resource to a PCI device bus address or bus window.
   */
  static inline void
  pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region,
  			 struct resource *res)
  {
  	region->start = res->start;
  	region->end = res->end;
  }

  static inline void
  pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
  			struct pci_bus_region *region)
  {
  	res->start = region->start;
  	res->end = region->end;
  }

  static inline struct resource *
  pcibios_select_root(struct pci_dev *pdev, struct resource *res)
  {
  	struct resource *root = NULL;
  
  	if (res->flags & IORESOURCE_IO)
  		root = &ioport_resource;
  	if (res->flags & IORESOURCE_MEM)
  		root = &iomem_resource;
  
  	return root;
  }

  
  #ifndef HAVE_ARCH_PCI_GET_LEGACY_IDE_IRQ
  static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
  {
  	return channel ? 15 : 14;
  }
  #endif /* HAVE_ARCH_PCI_GET_LEGACY_IDE_IRQ */

  /*
   * By default, assume that no iommu is in use and that the PCI
   * space is mapped to address physical 0.
   */
  #ifndef PCI_DMA_BUS_IS_PHYS
  #define PCI_DMA_BUS_IS_PHYS	(1)

  #endif

  
  #endif /* _ASM_GENERIC_PCI_H */