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
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
|
/*
* 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>
#include <asm/pci-bridge.h>
/*
* Here comes the ppc64 implementation of the IOMAP
* interfaces.
*/
unsigned int ioread8(void __iomem *addr)
{
return readb(addr);
}
unsigned int ioread16(void __iomem *addr)
{
return readw(addr);
}
unsigned int ioread16be(void __iomem *addr)
{
return in_be16(addr);
}
unsigned int ioread32(void __iomem *addr)
{
return readl(addr);
}
unsigned int ioread32be(void __iomem *addr)
{
return in_be32(addr);
}
EXPORT_SYMBOL(ioread8);
EXPORT_SYMBOL(ioread16);
EXPORT_SYMBOL(ioread16be);
EXPORT_SYMBOL(ioread32);
EXPORT_SYMBOL(ioread32be);
void iowrite8(u8 val, void __iomem *addr)
{
writeb(val, addr);
}
void iowrite16(u16 val, void __iomem *addr)
{
writew(val, addr);
}
void iowrite16be(u16 val, void __iomem *addr)
{
out_be16(addr, val);
}
void iowrite32(u32 val, void __iomem *addr)
{
writel(val, addr);
}
void iowrite32be(u32 val, void __iomem *addr)
{
out_be32(addr, val);
}
EXPORT_SYMBOL(iowrite8);
EXPORT_SYMBOL(iowrite16);
EXPORT_SYMBOL(iowrite16be);
EXPORT_SYMBOL(iowrite32);
EXPORT_SYMBOL(iowrite32be);
/*
* 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 __iomem *) addr, dst, count);
}
void ioread16_rep(void __iomem *addr, void *dst, unsigned long count)
{
_insw_ns((u16 __iomem *) addr, dst, count);
}
void ioread32_rep(void __iomem *addr, void *dst, unsigned long count)
{
_insl_ns((u32 __iomem *) 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 __iomem *) addr, src, count);
}
void iowrite16_rep(void __iomem *addr, const void *src, unsigned long count)
{
_outsw_ns((u16 __iomem *) addr, src, count);
}
void iowrite32_rep(void __iomem *addr, const void *src, unsigned long count)
{
_outsl_ns((u32 __iomem *) 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)
{
return (void __iomem *) (port + _IO_BASE);
}
void ioport_unmap(void __iomem *addr)
{
/* Nothing to do */
}
EXPORT_SYMBOL(ioport_map);
EXPORT_SYMBOL(ioport_unmap);
#ifdef CONFIG_PCI
void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max)
{
resource_size_t start = pci_resource_start(dev, bar);
resource_size_t 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)
{
if (isa_vaddr_is_ioport(addr))
return;
if (pcibios_vaddr_is_ioport(addr))
return;
iounmap(addr);
}
#endif /* CONFIG_PCI */
EXPORT_SYMBOL(pci_iomap);
EXPORT_SYMBOL(pci_iounmap);
|
