forked from intel/linux-intel-lts
-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathlogic_io.h
78 lines (61 loc) · 2.35 KB
/
logic_io.h
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
/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (C) 2021 Intel Corporation
* Author: [email protected]
*/
#ifndef _LOGIC_IO_H
#define _LOGIC_IO_H
#include <linux/types.h>
/* include this file into asm/io.h */
#ifdef CONFIG_INDIRECT_IOMEM
#ifdef CONFIG_INDIRECT_IOMEM_FALLBACK
/*
* If you want emulated IO memory to fall back to 'normal' IO memory
* if a region wasn't registered as emulated, then you need to have
* all of the real_* functions implemented.
*/
#if !defined(real_ioremap) || !defined(real_iounmap) || \
!defined(real_raw_readb) || !defined(real_raw_writeb) || \
!defined(real_raw_readw) || !defined(real_raw_writew) || \
!defined(real_raw_readl) || !defined(real_raw_writel) || \
(defined(CONFIG_64BIT) && \
(!defined(real_raw_readq) || !defined(real_raw_writeq))) || \
!defined(real_memset_io) || \
!defined(real_memcpy_fromio) || \
!defined(real_memcpy_toio)
#error "Must provide fallbacks for real IO memory access"
#endif /* defined ... */
#endif /* CONFIG_INDIRECT_IOMEM_FALLBACK */
#define ioremap ioremap
void __iomem *ioremap(phys_addr_t offset, size_t size);
#define iounmap iounmap
void iounmap(void volatile __iomem *addr);
#define __raw_readb __raw_readb
u8 __raw_readb(const volatile void __iomem *addr);
#define __raw_readw __raw_readw
u16 __raw_readw(const volatile void __iomem *addr);
#define __raw_readl __raw_readl
u32 __raw_readl(const volatile void __iomem *addr);
#ifdef CONFIG_64BIT
#define __raw_readq __raw_readq
u64 __raw_readq(const volatile void __iomem *addr);
#endif /* CONFIG_64BIT */
#define __raw_writeb __raw_writeb
void __raw_writeb(u8 value, volatile void __iomem *addr);
#define __raw_writew __raw_writew
void __raw_writew(u16 value, volatile void __iomem *addr);
#define __raw_writel __raw_writel
void __raw_writel(u32 value, volatile void __iomem *addr);
#ifdef CONFIG_64BIT
#define __raw_writeq __raw_writeq
void __raw_writeq(u64 value, volatile void __iomem *addr);
#endif /* CONFIG_64BIT */
#define memset_io memset_io
void memset_io(volatile void __iomem *addr, int value, size_t size);
#define memcpy_fromio memcpy_fromio
void memcpy_fromio(void *buffer, const volatile void __iomem *addr,
size_t size);
#define memcpy_toio memcpy_toio
void memcpy_toio(volatile void __iomem *addr, const void *buffer, size_t size);
#endif /* CONFIG_INDIRECT_IOMEM */
#endif /* _LOGIC_IO_H */