Linux Kernel  3.7.1
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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 
9 static inline struct resource *
10 pcibios_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
23 static 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 */