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
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
|
/*
* arch/ppc64/kernel/iomap.c
*
* ppc64 "iomap" interface implementation.
*
* (C) Copyright 2004 Linus Torvalds
*/
#include <linux/init.h>
#include <linux/pci.h>
#include <linux/mm.h>
#include <asm/io.h>
/*
* Here comes the ppc64 implementation of the IOMAP
* interfaces.
*/
unsigned int fastcall ioread8(void __iomem *addr)
{
return readb(addr);
}
unsigned int fastcall ioread16(void __iomem *addr)
{
return readw(addr);
}
unsigned int fastcall ioread32(void __iomem *addr)
{
return readl(addr);
}
EXPORT_SYMBOL(ioread8);
EXPORT_SYMBOL(ioread16);
EXPORT_SYMBOL(ioread32);
void fastcall iowrite8(u8 val, void __iomem *addr)
{
writeb(val, addr);
}
void fastcall iowrite16(u16 val, void __iomem *addr)
{
writew(val, addr);
}
void fastcall iowrite32(u32 val, void __iomem *addr)
{
writel(val, addr);
}
EXPORT_SYMBOL(iowrite8);
EXPORT_SYMBOL(iowrite16);
EXPORT_SYMBOL(iowrite32);
/*
* These are the "repeat read/write" functions. Note the
* non-CPU byte order. We do things in "IO byteorder"
* here.
*
* FIXME! We could make these do EEH handling if we really
* wanted. Not clear if we do.
*/
void ioread8_rep(void __iomem *addr, void *dst, unsigned long count)
{
_insb((u8 __force *) addr, dst, count);
}
void ioread16_rep(void __iomem *addr, void *dst, unsigned long count)
{
_insw_ns((u16 __force *) addr, dst, count);
}
void ioread32_rep(void __iomem *addr, void *dst, unsigned long count)
{
_insl_ns((u32 __force *) addr, dst, count);
}
EXPORT_SYMBOL(ioread8_rep);
EXPORT_SYMBOL(ioread16_rep);
EXPORT_SYMBOL(ioread32_rep);
void iowrite8_rep(void __iomem *addr, const void *src, unsigned long count)
{
_outsb((u8 __force *) addr, src, count);
}
void iowrite16_rep(void __iomem *addr, const void *src, unsigned long count)
{
_outsw_ns((u16 __force *) addr, src, count);
}
void iowrite32_rep(void __iomem *addr, const void *src, unsigned long count)
{
_outsl_ns((u32 __force *) addr, src, count);
}
EXPORT_SYMBOL(iowrite8_rep);
EXPORT_SYMBOL(iowrite16_rep);
EXPORT_SYMBOL(iowrite32_rep);
void __iomem *ioport_map(unsigned long port, unsigned int len)
{
if (!_IO_IS_VALID(port))
return NULL;
return (void __iomem *) (port+pci_io_base);
}
void ioport_unmap(void __iomem *addr)
{
/* Nothing to do */
}
EXPORT_SYMBOL(ioport_map);
EXPORT_SYMBOL(ioport_unmap);
void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max)
{
unsigned long start = pci_resource_start(dev, bar);
unsigned long len = pci_resource_len(dev, bar);
unsigned long flags = pci_resource_flags(dev, bar);
if (!len)
return NULL;
if (max && len > max)
len = max;
if (flags & IORESOURCE_IO)
return ioport_map(start, len);
if (flags & IORESOURCE_MEM)
return ioremap(start, len);
/* What? */
return NULL;
}
void pci_iounmap(struct pci_dev *dev, void __iomem *addr)
{
/* Nothing to do */
}
EXPORT_SYMBOL(pci_iomap);
EXPORT_SYMBOL(pci_iounmap);
|
