1 /* SPDX-License-Identifier: GPL-2.0+ */ 1
2 /* Generic I/O port emulation.
3 *
4 * Copyright (C) 2007 Red Hat, Inc. All Rights
5 * Written by David Howells (dhowells@redhat.c
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 B
13 extern void __iomem *pci_iomap(struct pci_dev
14 extern void __iomem *pci_iomap_wc(struct pci_d
15 extern void __iomem *pci_iomap_range(struct pc
16 unsigned
17 unsigned
18 extern void __iomem *pci_iomap_wc_range(struct
19 unsign
20 unsign
21 extern void pci_iounmap(struct pci_dev *dev, v
22 /* Create a virtual mapping cookie for a port
23 * Do not call this directly, it exists to mak
24 * to override */
25 #ifdef CONFIG_NO_GENERIC_PCI_IOPORT_MAP
26 extern void __iomem *__pci_ioport_map(struct p
27 unsigned
28 #elif !defined(CONFIG_HAS_IOPORT_MAP)
29 #define __pci_ioport_map(dev, port, nr) NULL
30 #else
31 #define __pci_ioport_map(dev, port, nr) ioport
32 #endif
33
34 #elif defined(CONFIG_GENERIC_PCI_IOMAP)
35 static inline void __iomem *pci_iomap(struct p
36 {
37 return NULL;
38 }
39
40 static inline void __iomem *pci_iomap_wc(struc
41 {
42 return NULL;
43 }
44 static inline void __iomem *pci_iomap_range(st
45 un
46 un
47 {
48 return NULL;
49 }
50 static inline void __iomem *pci_iomap_wc_range
51
52
53 {
54 return NULL;
55 }
56 static inline void pci_iounmap(struct pci_dev
57 { }
58 #endif
59
60 #endif /* __ASM_GENERIC_PCI_IOMAP_H */
61
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.