summaryrefslogtreecommitdiffstats
path: root/arch/m68k/include/asm/kmap.h
blob: aac7f045f7f0aa8509cf5ef288f8030de8276bce (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _KMAP_H
#define _KMAP_H

#ifdef CONFIG_MMU

#define ARCH_HAS_IOREMAP_WT

/* Values for nocacheflag and cmode */
#define IOMAP_FULL_CACHING		0
#define IOMAP_NOCACHE_SER		1
#define IOMAP_NOCACHE_NONSER		2
#define IOMAP_WRITETHROUGH		3

/*
 * These functions exported by arch/m68k/mm/kmap.c.
 * Only needed on MMU enabled systems.
 */
extern void __iomem *__ioremap(unsigned long physaddr, unsigned long size,
			       int cacheflag);
#define iounmap iounmap
extern void iounmap(void __iomem *addr);
extern void __iounmap(void *addr, unsigned long size);

#define ioremap ioremap
static inline void __iomem *ioremap(unsigned long physaddr, unsigned long size)
{
	return __ioremap(physaddr, size, IOMAP_NOCACHE_SER);
}

#define ioremap_nocache ioremap_nocache
static inline void __iomem *ioremap_nocache(unsigned long physaddr,
					    unsigned long size)
{
	return __ioremap(physaddr, size, IOMAP_NOCACHE_SER);
}

#define ioremap_uc ioremap_nocache
#define ioremap_wt ioremap_wt
static inline void __iomem *ioremap_wt(unsigned long physaddr,
				       unsigned long size)
{
	return __ioremap(physaddr, size, IOMAP_WRITETHROUGH);
}

#define ioremap_fullcache ioremap_fullcache
static inline void __iomem *ioremap_fullcache(unsigned long physaddr,
					      unsigned long size)
{
	return __ioremap(physaddr, size, IOMAP_FULL_CACHING);
}

#define memset_io memset_io
static inline void memset_io(volatile void __iomem *addr, unsigned char val,
			     int count)
{
	__builtin_memset((void __force *) addr, val, count);
}

#define memcpy_fromio memcpy_fromio
static inline void memcpy_fromio(void *dst, const volatile void __iomem *src,
				 int count)
{
	__builtin_memcpy(dst, (void __force *) src, count);
}

#define memcpy_toio memcpy_toio
static inline void memcpy_toio(volatile void __iomem *dst, const void *src,
			       int count)
{
	__builtin_memcpy((void __force *) dst, src, count);
}

#endif /* CONFIG_MMU */

#define ioport_map ioport_map
static inline void __iomem *ioport_map(unsigned long port, unsigned int nr)
{
	return (void __iomem *) port;
}

#define ioport_unmap ioport_unmap
static inline void ioport_unmap(void __iomem *p)
{
}

#endif /* _KMAP_H */