162306a36Sopenharmony_ci/* SPDX-License-Identifier: GPL-2.0+ */ 262306a36Sopenharmony_ci/* Generic I/O port emulation. 362306a36Sopenharmony_ci * 462306a36Sopenharmony_ci * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. 562306a36Sopenharmony_ci * Written by David Howells (dhowells@redhat.com) 662306a36Sopenharmony_ci */ 762306a36Sopenharmony_ci#ifndef __ASM_GENERIC_PCI_IOMAP_H 862306a36Sopenharmony_ci#define __ASM_GENERIC_PCI_IOMAP_H 962306a36Sopenharmony_ci 1062306a36Sopenharmony_cistruct pci_dev; 1162306a36Sopenharmony_ci#ifdef CONFIG_PCI 1262306a36Sopenharmony_ci/* Create a virtual mapping cookie for a PCI BAR (memory or IO) */ 1362306a36Sopenharmony_ciextern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max); 1462306a36Sopenharmony_ciextern void __iomem *pci_iomap_wc(struct pci_dev *dev, int bar, unsigned long max); 1562306a36Sopenharmony_ciextern void __iomem *pci_iomap_range(struct pci_dev *dev, int bar, 1662306a36Sopenharmony_ci unsigned long offset, 1762306a36Sopenharmony_ci unsigned long maxlen); 1862306a36Sopenharmony_ciextern void __iomem *pci_iomap_wc_range(struct pci_dev *dev, int bar, 1962306a36Sopenharmony_ci unsigned long offset, 2062306a36Sopenharmony_ci unsigned long maxlen); 2162306a36Sopenharmony_ciextern void pci_iounmap(struct pci_dev *dev, void __iomem *); 2262306a36Sopenharmony_ci/* Create a virtual mapping cookie for a port on a given PCI device. 2362306a36Sopenharmony_ci * Do not call this directly, it exists to make it easier for architectures 2462306a36Sopenharmony_ci * to override */ 2562306a36Sopenharmony_ci#ifdef CONFIG_NO_GENERIC_PCI_IOPORT_MAP 2662306a36Sopenharmony_ciextern void __iomem *__pci_ioport_map(struct pci_dev *dev, unsigned long port, 2762306a36Sopenharmony_ci unsigned int nr); 2862306a36Sopenharmony_ci#elif !defined(CONFIG_HAS_IOPORT_MAP) 2962306a36Sopenharmony_ci#define __pci_ioport_map(dev, port, nr) NULL 3062306a36Sopenharmony_ci#else 3162306a36Sopenharmony_ci#define __pci_ioport_map(dev, port, nr) ioport_map((port), (nr)) 3262306a36Sopenharmony_ci#endif 3362306a36Sopenharmony_ci 3462306a36Sopenharmony_ci#elif defined(CONFIG_GENERIC_PCI_IOMAP) 3562306a36Sopenharmony_cistatic inline void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max) 3662306a36Sopenharmony_ci{ 3762306a36Sopenharmony_ci return NULL; 3862306a36Sopenharmony_ci} 3962306a36Sopenharmony_ci 4062306a36Sopenharmony_cistatic inline void __iomem *pci_iomap_wc(struct pci_dev *dev, int bar, unsigned long max) 4162306a36Sopenharmony_ci{ 4262306a36Sopenharmony_ci return NULL; 4362306a36Sopenharmony_ci} 4462306a36Sopenharmony_cistatic inline void __iomem *pci_iomap_range(struct pci_dev *dev, int bar, 4562306a36Sopenharmony_ci unsigned long offset, 4662306a36Sopenharmony_ci unsigned long maxlen) 4762306a36Sopenharmony_ci{ 4862306a36Sopenharmony_ci return NULL; 4962306a36Sopenharmony_ci} 5062306a36Sopenharmony_cistatic inline void __iomem *pci_iomap_wc_range(struct pci_dev *dev, int bar, 5162306a36Sopenharmony_ci unsigned long offset, 5262306a36Sopenharmony_ci unsigned long maxlen) 5362306a36Sopenharmony_ci{ 5462306a36Sopenharmony_ci return NULL; 5562306a36Sopenharmony_ci} 5662306a36Sopenharmony_cistatic inline void pci_iounmap(struct pci_dev *dev, void __iomem *addr) 5762306a36Sopenharmony_ci{ } 5862306a36Sopenharmony_ci#endif 5962306a36Sopenharmony_ci 6062306a36Sopenharmony_ci#endif /* __ASM_GENERIC_PCI_IOMAP_H */ 61