Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _KMAP_H
3#define _KMAP_H
4
5#ifdef CONFIG_MMU
6
7/* Values for nocacheflag and cmode */
8#define IOMAP_FULL_CACHING 0
9#define IOMAP_NOCACHE_SER 1
10#define IOMAP_NOCACHE_NONSER 2
11#define IOMAP_WRITETHROUGH 3
12
13/*
14 * These functions exported by arch/m68k/mm/kmap.c.
15 * Only needed on MMU enabled systems.
16 */
17extern void __iomem *__ioremap(unsigned long physaddr, unsigned long size,
18 int cacheflag);
19#define iounmap iounmap
20extern void iounmap(void __iomem *addr);
21
22#define ioremap ioremap
23static inline void __iomem *ioremap(unsigned long physaddr, unsigned long size)
24{
25 return __ioremap(physaddr, size, IOMAP_NOCACHE_SER);
26}
27
28#define ioremap_wt ioremap_wt
29static inline void __iomem *ioremap_wt(unsigned long physaddr,
30 unsigned long size)
31{
32 return __ioremap(physaddr, size, IOMAP_WRITETHROUGH);
33}
34
35#define memset_io memset_io
36static inline void memset_io(volatile void __iomem *addr, unsigned char val,
37 int count)
38{
39 __builtin_memset((void __force *) addr, val, count);
40}
41
42#define memcpy_fromio memcpy_fromio
43static inline void memcpy_fromio(void *dst, const volatile void __iomem *src,
44 int count)
45{
46 __builtin_memcpy(dst, (void __force *) src, count);
47}
48
49#define memcpy_toio memcpy_toio
50static inline void memcpy_toio(volatile void __iomem *dst, const void *src,
51 int count)
52{
53 __builtin_memcpy((void __force *) dst, src, count);
54}
55
56#endif /* CONFIG_MMU */
57
58#define ioport_map ioport_map
59static inline void __iomem *ioport_map(unsigned long port, unsigned int nr)
60{
61 return (void __iomem *) port;
62}
63
64#define ioport_unmap ioport_unmap
65static inline void ioport_unmap(void __iomem *p)
66{
67}
68
69#endif /* _KMAP_H */