lib: add GENERIC_PCI_IOMAP
[linux-2.6-block.git] / include / asm-generic / pci_iomap.h
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66eab4df
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1/* Generic I/O port emulation, based on MN10300 code
2 *
3 * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
4 * Written by David Howells (dhowells@redhat.com)
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public Licence
8 * as published by the Free Software Foundation; either version
9 * 2 of the Licence, or (at your option) any later version.
10 */
11#ifndef __ASM_GENERIC_PCI_IOMAP_H
12#define __ASM_GENERIC_PCI_IOMAP_H
13
14struct pci_dev;
15#ifdef CONFIG_PCI
16/* Create a virtual mapping cookie for a PCI BAR (memory or IO) */
17extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max);
18#else
19static inline void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max)
20{
21 return NULL;
22}
23#endif
24
25#endif /* __ASM_GENERIC_IO_H */