projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 736759ef | 1 | /* SPDX-License-Identifier: GPL-2.0+ */ |
| 739d875d | 2 | /* Generic I/O port emulation. |
| 66eab4df MT |
3 | * |
| 4 | * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. | |
| 5 | * Written by David Howells (dhowells@redhat.com) | |
| 66eab4df MT |
6 | */ |
| 7 | #ifndef __ASM_GENERIC_PCI_IOMAP_H | |
| 8 | #define __ASM_GENERIC_PCI_IOMAP_H | |
| 9 | ||
| 10 | struct pci_dev; | |
| 11 | #ifdef CONFIG_PCI | |
| 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); | |
| 1b3d4200 | 14 | extern void __iomem *pci_iomap_wc(struct pci_dev *dev, int bar, unsigned long max); |
| eb29d8d2 MT |
15 | extern void __iomem *pci_iomap_range(struct pci_dev *dev, int bar, |
| 16 | unsigned long offset, | |
| 17 | unsigned long maxlen); | |
| 1b3d4200 LR |
18 | extern void __iomem *pci_iomap_wc_range(struct pci_dev *dev, int bar, |
| 19 | unsigned long offset, | |
| 20 | unsigned long maxlen); | |
| 9caea000 | 21 | extern void pci_iounmap(struct pci_dev *dev, void __iomem *); |
| b923650b MT |
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 | |
| 24 | * to override */ | |
| 25 | #ifdef CONFIG_NO_GENERIC_PCI_IOPORT_MAP | |
| 26 | extern void __iomem *__pci_ioport_map(struct pci_dev *dev, unsigned long port, | |
| 27 | unsigned int nr); | |
| 933c5a4f SH |
28 | #elif !defined(CONFIG_HAS_IOPORT_MAP) |
| 29 | #define __pci_ioport_map(dev, port, nr) NULL | |
| b923650b MT |
30 | #else |
| 31 | #define __pci_ioport_map(dev, port, nr) ioport_map((port), (nr)) | |
| 32 | #endif | |
| 33 | ||
| 97a29d59 | 34 | #elif defined(CONFIG_GENERIC_PCI_IOMAP) |
| 66eab4df MT |
35 | static inline void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max) |
| 36 | { | |
| 37 | return NULL; | |
| 38 | } | |
| eb29d8d2 | 39 | |
| 1b3d4200 LR |
40 | static inline void __iomem *pci_iomap_wc(struct pci_dev *dev, int bar, unsigned long max) |
| 41 | { | |
| 42 | return NULL; | |
| 43 | } | |
| eb29d8d2 MT |
44 | static inline void __iomem *pci_iomap_range(struct pci_dev *dev, int bar, |
| 45 | unsigned long offset, | |
| 46 | unsigned long maxlen) | |
| 47 | { | |
| 48 | return NULL; | |
| 49 | } | |
| 1b3d4200 LR |
50 | static inline void __iomem *pci_iomap_wc_range(struct pci_dev *dev, int bar, |
| 51 | unsigned long offset, | |
| 52 | unsigned long maxlen) | |
| 53 | { | |
| 54 | return NULL; | |
| 55 | } | |
| 9caea000 HD |
56 | static inline void pci_iounmap(struct pci_dev *dev, void __iomem *addr) |
| 57 | { } | |
| 66eab4df MT |
58 | #endif |
| 59 | ||
| 1901f8c9 | 60 | #endif /* __ASM_GENERIC_PCI_IOMAP_H */ |