diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/ia64/lib/io.c |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'arch/ia64/lib/io.c')
-rw-r--r-- | arch/ia64/lib/io.c | 165 |
1 files changed, 165 insertions, 0 deletions
diff --git a/arch/ia64/lib/io.c b/arch/ia64/lib/io.c new file mode 100644 index 000000000000..8949e44091ac --- /dev/null +++ b/arch/ia64/lib/io.c | |||
@@ -0,0 +1,165 @@ | |||
1 | #include <linux/config.h> | ||
2 | #include <linux/module.h> | ||
3 | #include <linux/types.h> | ||
4 | |||
5 | #include <asm/io.h> | ||
6 | |||
7 | /* | ||
8 | * Copy data from IO memory space to "real" memory space. | ||
9 | * This needs to be optimized. | ||
10 | */ | ||
11 | void memcpy_fromio(void *to, const volatile void __iomem *from, long count) | ||
12 | { | ||
13 | char *dst = to; | ||
14 | |||
15 | while (count) { | ||
16 | count--; | ||
17 | *dst++ = readb(from++); | ||
18 | } | ||
19 | } | ||
20 | EXPORT_SYMBOL(memcpy_fromio); | ||
21 | |||
22 | /* | ||
23 | * Copy data from "real" memory space to IO memory space. | ||
24 | * This needs to be optimized. | ||
25 | */ | ||
26 | void memcpy_toio(volatile void __iomem *to, const void *from, long count) | ||
27 | { | ||
28 | const char *src = from; | ||
29 | |||
30 | while (count) { | ||
31 | count--; | ||
32 | writeb(*src++, to++); | ||
33 | } | ||
34 | } | ||
35 | EXPORT_SYMBOL(memcpy_toio); | ||
36 | |||
37 | /* | ||
38 | * "memset" on IO memory space. | ||
39 | * This needs to be optimized. | ||
40 | */ | ||
41 | void memset_io(volatile void __iomem *dst, int c, long count) | ||
42 | { | ||
43 | unsigned char ch = (char)(c & 0xff); | ||
44 | |||
45 | while (count) { | ||
46 | count--; | ||
47 | writeb(ch, dst); | ||
48 | dst++; | ||
49 | } | ||
50 | } | ||
51 | EXPORT_SYMBOL(memset_io); | ||
52 | |||
53 | #ifdef CONFIG_IA64_GENERIC | ||
54 | |||
55 | #undef __ia64_inb | ||
56 | #undef __ia64_inw | ||
57 | #undef __ia64_inl | ||
58 | #undef __ia64_outb | ||
59 | #undef __ia64_outw | ||
60 | #undef __ia64_outl | ||
61 | #undef __ia64_readb | ||
62 | #undef __ia64_readw | ||
63 | #undef __ia64_readl | ||
64 | #undef __ia64_readq | ||
65 | #undef __ia64_readb_relaxed | ||
66 | #undef __ia64_readw_relaxed | ||
67 | #undef __ia64_readl_relaxed | ||
68 | #undef __ia64_readq_relaxed | ||
69 | #undef __ia64_writeb | ||
70 | #undef __ia64_writew | ||
71 | #undef __ia64_writel | ||
72 | #undef __ia64_writeq | ||
73 | #undef __ia64_mmiowb | ||
74 | |||
75 | unsigned int | ||
76 | __ia64_inb (unsigned long port) | ||
77 | { | ||
78 | return ___ia64_inb(port); | ||
79 | } | ||
80 | |||
81 | unsigned int | ||
82 | __ia64_inw (unsigned long port) | ||
83 | { | ||
84 | return ___ia64_inw(port); | ||
85 | } | ||
86 | |||
87 | unsigned int | ||
88 | __ia64_inl (unsigned long port) | ||
89 | { | ||
90 | return ___ia64_inl(port); | ||
91 | } | ||
92 | |||
93 | void | ||
94 | __ia64_outb (unsigned char val, unsigned long port) | ||
95 | { | ||
96 | ___ia64_outb(val, port); | ||
97 | } | ||
98 | |||
99 | void | ||
100 | __ia64_outw (unsigned short val, unsigned long port) | ||
101 | { | ||
102 | ___ia64_outw(val, port); | ||
103 | } | ||
104 | |||
105 | void | ||
106 | __ia64_outl (unsigned int val, unsigned long port) | ||
107 | { | ||
108 | ___ia64_outl(val, port); | ||
109 | } | ||
110 | |||
111 | unsigned char | ||
112 | __ia64_readb (void __iomem *addr) | ||
113 | { | ||
114 | return ___ia64_readb (addr); | ||
115 | } | ||
116 | |||
117 | unsigned short | ||
118 | __ia64_readw (void __iomem *addr) | ||
119 | { | ||
120 | return ___ia64_readw (addr); | ||
121 | } | ||
122 | |||
123 | unsigned int | ||
124 | __ia64_readl (void __iomem *addr) | ||
125 | { | ||
126 | return ___ia64_readl (addr); | ||
127 | } | ||
128 | |||
129 | unsigned long | ||
130 | __ia64_readq (void __iomem *addr) | ||
131 | { | ||
132 | return ___ia64_readq (addr); | ||
133 | } | ||
134 | |||
135 | unsigned char | ||
136 | __ia64_readb_relaxed (void __iomem *addr) | ||
137 | { | ||
138 | return ___ia64_readb (addr); | ||
139 | } | ||
140 | |||
141 | unsigned short | ||
142 | __ia64_readw_relaxed (void __iomem *addr) | ||
143 | { | ||
144 | return ___ia64_readw (addr); | ||
145 | } | ||
146 | |||
147 | unsigned int | ||
148 | __ia64_readl_relaxed (void __iomem *addr) | ||
149 | { | ||
150 | return ___ia64_readl (addr); | ||
151 | } | ||
152 | |||
153 | unsigned long | ||
154 | __ia64_readq_relaxed (void __iomem *addr) | ||
155 | { | ||
156 | return ___ia64_readq (addr); | ||
157 | } | ||
158 | |||
159 | void | ||
160 | __ia64_mmiowb(void) | ||
161 | { | ||
162 | ___ia64_mmiowb(); | ||
163 | } | ||
164 | |||
165 | #endif /* CONFIG_IA64_GENERIC */ | ||