관리-도구

편집 파일: pci_iomap.h

/* SPDX-License-Identifier: GPL-2.0+ */ /* Generic I/O port emulation. * * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. * Written by David Howells (dhowells@redhat.com) */ #ifndef __ASM_GENERIC_PCI_IOMAP_H #define __ASM_GENERIC_PCI_IOMAP_H struct pci_dev; #ifdef CONFIG_PCI /* Create a virtual mapping cookie for a PCI BAR (memory or IO) */ extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max); extern void __iomem *pci_iomap_wc(struct pci_dev *dev, int bar, unsigned long max); extern void __iomem *pci_iomap_range(struct pci_dev *dev, int bar, unsigned long offset, unsigned long maxlen); extern void __iomem *pci_iomap_wc_range(struct pci_dev *dev, int bar, unsigned long offset, unsigned long maxlen); extern void pci_iounmap(struct pci_dev *dev, void __iomem *); /* Create a virtual mapping cookie for a port on a given PCI device. * Do not call this directly, it exists to make it easier for architectures * to override */ #ifdef CONFIG_NO_GENERIC_PCI_IOPORT_MAP extern void __iomem *__pci_ioport_map(struct pci_dev *dev, unsigned long port, unsigned int nr); #elif !defined(CONFIG_HAS_IOPORT_MAP) #define __pci_ioport_map(dev, port, nr) NULL #else #define __pci_ioport_map(dev, port, nr) ioport_map((port), (nr)) #endif #elif defined(CONFIG_GENERIC_PCI_IOMAP) static inline void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max) { return NULL; } static inline void __iomem *pci_iomap_wc(struct pci_dev *dev, int bar, unsigned long max) { return NULL; } static inline void __iomem *pci_iomap_range(struct pci_dev *dev, int bar, unsigned long offset, unsigned long maxlen) { return NULL; } static inline void __iomem *pci_iomap_wc_range(struct pci_dev *dev, int bar, unsigned long offset, unsigned long maxlen) { return NULL; } static inline void pci_iounmap(struct pci_dev *dev, void __iomem *addr) { } #endif #endif /* __ASM_GENERIC_PCI_IOMAP_H */