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Commit | Line | Data |
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1da177e4 LT |
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 | ||
43c34735 DB |
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 | ||
a7db5040 AC |
33 | static inline struct resource * |
34 | pcibios_select_root(struct pci_dev *pdev, struct resource *res) | |
35 | { | |
36 | struct resource *root = NULL; | |
37 | ||
38 | if (res->flags & IORESOURCE_IO) | |
39 | root = &ioport_resource; | |
40 | if (res->flags & IORESOURCE_MEM) | |
41 | root = &iomem_resource; | |
42 | ||
43 | return root; | |
44 | } | |
1da177e4 LT |
45 | |
46 | #ifndef HAVE_ARCH_PCI_GET_LEGACY_IDE_IRQ | |
47 | static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel) | |
48 | { | |
49 | return channel ? 15 : 14; | |
50 | } | |
51 | #endif /* HAVE_ARCH_PCI_GET_LEGACY_IDE_IRQ */ | |
52 | ||
d7c4f1b7 AB |
53 | /* |
54 | * By default, assume that no iommu is in use and that the PCI | |
55 | * space is mapped to address physical 0. | |
56 | */ | |
57 | #ifndef PCI_DMA_BUS_IS_PHYS | |
58 | #define PCI_DMA_BUS_IS_PHYS (1) | |
1da177e4 | 59 | #endif |
d7c4f1b7 AB |
60 | |
61 | #endif /* _ASM_GENERIC_PCI_H */ |