linux/include/asm-generic/pci.h
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   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
   9static inline struct resource *
  10pcibios_select_root(struct pci_dev *pdev, struct resource *res)
  11{
  12        struct resource *root = NULL;
  13
  14        if (res->flags & IORESOURCE_IO)
  15                root = &ioport_resource;
  16        if (res->flags & IORESOURCE_MEM)
  17                root = &iomem_resource;
  18
  19        return root;
  20}
  21
  22#ifndef HAVE_ARCH_PCI_GET_LEGACY_IDE_IRQ
  23static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
  24{
  25        return channel ? 15 : 14;
  26}
  27#endif /* HAVE_ARCH_PCI_GET_LEGACY_IDE_IRQ */
  28
  29/*
  30 * By default, assume that no iommu is in use and that the PCI
  31 * space is mapped to address physical 0.
  32 */
  33#ifndef PCI_DMA_BUS_IS_PHYS
  34#define PCI_DMA_BUS_IS_PHYS     (1)
  35#endif
  36
  37#endif /* _ASM_GENERIC_PCI_H */
  38
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