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1da177e4 LT |
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 */ |