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authorPaul Mackerras <paulus@samba.org>2005-11-14 01:30:17 -0500
committerPaul Mackerras <paulus@samba.org>2005-11-14 01:30:17 -0500
commit7568cb4ef6c507164b65b01f972a3bd026898ae1 (patch)
treeba608f4c84d8765d5a1491c345f6dc265b5ec4ea /arch/powerpc/kernel/iomap.c
parentc55377ee73f6efeb373ae06f6e918d87660b4852 (diff)
powerpc: Move most remaining ppc64 files over to arch/powerpc
Also deletes files in arch/ppc64 that are no longer used now that we don't compile with ARCH=ppc64 any more. Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/kernel/iomap.c')
-rw-r--r--arch/powerpc/kernel/iomap.c146
1 files changed, 146 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/iomap.c b/arch/powerpc/kernel/iomap.c
new file mode 100644
index 000000000000..6160c8dbb7c5
--- /dev/null
+++ b/arch/powerpc/kernel/iomap.c
@@ -0,0 +1,146 @@
1/*
2 * arch/ppc64/kernel/iomap.c
3 *
4 * ppc64 "iomap" interface implementation.
5 *
6 * (C) Copyright 2004 Linus Torvalds
7 */
8#include <linux/init.h>
9#include <linux/pci.h>
10#include <linux/mm.h>
11#include <asm/io.h>
12
13/*
14 * Here comes the ppc64 implementation of the IOMAP
15 * interfaces.
16 */
17unsigned int fastcall ioread8(void __iomem *addr)
18{
19 return readb(addr);
20}
21unsigned int fastcall ioread16(void __iomem *addr)
22{
23 return readw(addr);
24}
25unsigned int fastcall ioread16be(void __iomem *addr)
26{
27 return in_be16(addr);
28}
29unsigned int fastcall ioread32(void __iomem *addr)
30{
31 return readl(addr);
32}
33unsigned int fastcall ioread32be(void __iomem *addr)
34{
35 return in_be32(addr);
36}
37EXPORT_SYMBOL(ioread8);
38EXPORT_SYMBOL(ioread16);
39EXPORT_SYMBOL(ioread16be);
40EXPORT_SYMBOL(ioread32);
41EXPORT_SYMBOL(ioread32be);
42
43void fastcall iowrite8(u8 val, void __iomem *addr)
44{
45 writeb(val, addr);
46}
47void fastcall iowrite16(u16 val, void __iomem *addr)
48{
49 writew(val, addr);
50}
51void fastcall iowrite16be(u16 val, void __iomem *addr)
52{
53 out_be16(addr, val);
54}
55void fastcall iowrite32(u32 val, void __iomem *addr)
56{
57 writel(val, addr);
58}
59void fastcall iowrite32be(u32 val, void __iomem *addr)
60{
61 out_be32(addr, val);
62}
63EXPORT_SYMBOL(iowrite8);
64EXPORT_SYMBOL(iowrite16);
65EXPORT_SYMBOL(iowrite16be);
66EXPORT_SYMBOL(iowrite32);
67EXPORT_SYMBOL(iowrite32be);
68
69/*
70 * These are the "repeat read/write" functions. Note the
71 * non-CPU byte order. We do things in "IO byteorder"
72 * here.
73 *
74 * FIXME! We could make these do EEH handling if we really
75 * wanted. Not clear if we do.
76 */
77void ioread8_rep(void __iomem *addr, void *dst, unsigned long count)
78{
79 _insb((u8 __iomem *) addr, dst, count);
80}
81void ioread16_rep(void __iomem *addr, void *dst, unsigned long count)
82{
83 _insw_ns((u16 __iomem *) addr, dst, count);
84}
85void ioread32_rep(void __iomem *addr, void *dst, unsigned long count)
86{
87 _insl_ns((u32 __iomem *) addr, dst, count);
88}
89EXPORT_SYMBOL(ioread8_rep);
90EXPORT_SYMBOL(ioread16_rep);
91EXPORT_SYMBOL(ioread32_rep);
92
93void iowrite8_rep(void __iomem *addr, const void *src, unsigned long count)
94{
95 _outsb((u8 __iomem *) addr, src, count);
96}
97void iowrite16_rep(void __iomem *addr, const void *src, unsigned long count)
98{
99 _outsw_ns((u16 __iomem *) addr, src, count);
100}
101void iowrite32_rep(void __iomem *addr, const void *src, unsigned long count)
102{
103 _outsl_ns((u32 __iomem *) addr, src, count);
104}
105EXPORT_SYMBOL(iowrite8_rep);
106EXPORT_SYMBOL(iowrite16_rep);
107EXPORT_SYMBOL(iowrite32_rep);
108
109void __iomem *ioport_map(unsigned long port, unsigned int len)
110{
111 if (!_IO_IS_VALID(port))
112 return NULL;
113 return (void __iomem *) (port+pci_io_base);
114}
115
116void ioport_unmap(void __iomem *addr)
117{
118 /* Nothing to do */
119}
120EXPORT_SYMBOL(ioport_map);
121EXPORT_SYMBOL(ioport_unmap);
122
123void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max)
124{
125 unsigned long start = pci_resource_start(dev, bar);
126 unsigned long len = pci_resource_len(dev, bar);
127 unsigned long flags = pci_resource_flags(dev, bar);
128
129 if (!len)
130 return NULL;
131 if (max && len > max)
132 len = max;
133 if (flags & IORESOURCE_IO)
134 return ioport_map(start, len);
135 if (flags & IORESOURCE_MEM)
136 return ioremap(start, len);
137 /* What? */
138 return NULL;
139}
140
141void pci_iounmap(struct pci_dev *dev, void __iomem *addr)
142{
143 /* Nothing to do */
144}
145EXPORT_SYMBOL(pci_iomap);
146EXPORT_SYMBOL(pci_iounmap);