1 /* SPDX-License-Identifier: GPL-2.0+ */
2 /* Generic I/O port emulation.
4 * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
5 * Written by David Howells (dhowells@redhat.com)
7 #ifndef __ASM_GENERIC_PCI_IOMAP_H
8 #define __ASM_GENERIC_PCI_IOMAP_H
12 /* Create a virtual mapping cookie for a PCI BAR (memory or IO) */
13 extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max);
14 extern void __iomem *pci_iomap_wc(struct pci_dev *dev, int bar, unsigned long max);
15 extern void __iomem *pci_iomap_range(struct pci_dev *dev, int bar,
17 unsigned long maxlen);
18 extern void __iomem *pci_iomap_wc_range(struct pci_dev *dev, int bar,
20 unsigned long maxlen);
21 extern void pci_iounmap(struct pci_dev *dev, void __iomem *);
22 /* Create a virtual mapping cookie for a port on a given PCI device.
23 * Do not call this directly, it exists to make it easier for architectures
25 #ifdef CONFIG_NO_GENERIC_PCI_IOPORT_MAP
26 extern void __iomem *__pci_ioport_map(struct pci_dev *dev, unsigned long port,
28 #elif !defined(CONFIG_HAS_IOPORT_MAP)
29 #define __pci_ioport_map(dev, port, nr) NULL
31 #define __pci_ioport_map(dev, port, nr) ioport_map((port), (nr))
34 #elif defined(CONFIG_GENERIC_PCI_IOMAP)
35 static inline void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max)
40 static inline void __iomem *pci_iomap_wc(struct pci_dev *dev, int bar, unsigned long max)
44 static inline void __iomem *pci_iomap_range(struct pci_dev *dev, int bar,
50 static inline void __iomem *pci_iomap_wc_range(struct pci_dev *dev, int bar,
56 static inline void pci_iounmap(struct pci_dev *dev, void __iomem *addr)
60 #endif /* __ASM_GENERIC_PCI_IOMAP_H */