include/asm-generic/pci.h

   1 /*
   2  * linux/include/asm-generic/pci.h
   3  *
   4  *  Copyright (C) 2003 Russell King
   5  */
   6 #ifndef _ASM_GENERIC_PCI_H
   7 #define _ASM_GENERIC_PCI_H
   8
   9 /**
  10  * pcibios_resource_to_bus - convert resource to PCI bus address
  11  * @dev: device which owns this resource
  12  * @region: converted bus-centric region (start,end)
  13  * @res: resource to convert
  14  *
  15  * Convert a resource to a PCI device bus address or bus window.
  16  */
  17 static inline void
  18 pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region,
  19                          struct resource *res)
  20 {
  21         region->start = res->start;
  22         region->end = res->end;
  23 }
  24
  25 static inline void
  26 pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
  27                         struct pci_bus_region *region)
  28 {
  29         res->start = region->start;
  30         res->end = region->end;
  31 }
  32
  33 #define pcibios_scan_all_fns(a, b)      0
  34
  35 #ifndef HAVE_ARCH_PCI_GET_LEGACY_IDE_IRQ
  36 static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
  37 {
  38         return channel ? 15 : 14;
  39 }
  40 #endif /* HAVE_ARCH_PCI_GET_LEGACY_IDE_IRQ */
  41
  42 /*
  43  * By default, assume that no iommu is in use and that the PCI
  44  * space is mapped to address physical 0.
  45  */
  46 #ifndef PCI_DMA_BUS_IS_PHYS
  47 #define PCI_DMA_BUS_IS_PHYS     (1)
  48 #endif
  49
  50 #endif /* _ASM_GENERIC_PCI_H */