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
14 struct pci_dev;
15 #ifdef CONFIG_PCI
16 /* Create a virtual mapping cookie for a PCI BAR (memory or IO) */
17 extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max);
18 /* Create a virtual mapping cookie for a port on a given PCI device.
19 * Do not call this directly, it exists to make it easier for architectures
20 * to override */
21 #ifdef CONFIG_NO_GENERIC_PCI_IOPORT_MAP
22 extern void __iomem *__pci_ioport_map(struct pci_dev *dev, unsigned long port,
23 unsigned int nr);
24 #else
25 #define __pci_ioport_map(dev, port, nr) ioport_map((port), (nr))
26 #endif
27
28 #elif defined(CONFIG_GENERIC_PCI_IOMAP)
pci_iomap(struct pci_dev * dev,int bar,unsigned long max)29 static inline void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max)
30 {
31 return NULL;
32 }
33 #endif
34
35 #endif /* __ASM_GENERIC_IO_H */
36