Commit | Line | Data |
---|---|---|
1da177e4 | 1 | /* |
1da177e4 LT |
2 | * ppc64 "iomap" interface implementation. |
3 | * | |
4 | * (C) Copyright 2004 Linus Torvalds | |
5 | */ | |
1da177e4 LT |
6 | #include <linux/pci.h> |
7 | #include <linux/mm.h> | |
93087948 | 8 | #include <linux/export.h> |
1da177e4 | 9 | #include <asm/io.h> |
50747cb8 | 10 | #include <asm/pci-bridge.h> |
1da177e4 LT |
11 | |
12 | /* | |
13 | * Here comes the ppc64 implementation of the IOMAP | |
14 | * interfaces. | |
15 | */ | |
8943212c | 16 | unsigned int ioread8(void __iomem *addr) |
1da177e4 LT |
17 | { |
18 | return readb(addr); | |
19 | } | |
8943212c | 20 | unsigned int ioread16(void __iomem *addr) |
1da177e4 LT |
21 | { |
22 | return readw(addr); | |
23 | } | |
8943212c | 24 | unsigned int ioread16be(void __iomem *addr) |
76637536 | 25 | { |
0eb57368 | 26 | return readw_be(addr); |
76637536 | 27 | } |
8943212c | 28 | unsigned int ioread32(void __iomem *addr) |
1da177e4 LT |
29 | { |
30 | return readl(addr); | |
31 | } | |
8943212c | 32 | unsigned int ioread32be(void __iomem *addr) |
76637536 | 33 | { |
0eb57368 | 34 | return readl_be(addr); |
76637536 | 35 | } |
1da177e4 LT |
36 | EXPORT_SYMBOL(ioread8); |
37 | EXPORT_SYMBOL(ioread16); | |
76637536 | 38 | EXPORT_SYMBOL(ioread16be); |
1da177e4 | 39 | EXPORT_SYMBOL(ioread32); |
76637536 | 40 | EXPORT_SYMBOL(ioread32be); |
d54fc90c HG |
41 | #ifdef __powerpc64__ |
42 | u64 ioread64(void __iomem *addr) | |
43 | { | |
44 | return readq(addr); | |
45 | } | |
46 | u64 ioread64be(void __iomem *addr) | |
47 | { | |
48 | return readq_be(addr); | |
49 | } | |
50 | EXPORT_SYMBOL(ioread64); | |
51 | EXPORT_SYMBOL(ioread64be); | |
52 | #endif /* __powerpc64__ */ | |
1da177e4 | 53 | |
8943212c | 54 | void iowrite8(u8 val, void __iomem *addr) |
1da177e4 LT |
55 | { |
56 | writeb(val, addr); | |
57 | } | |
8943212c | 58 | void iowrite16(u16 val, void __iomem *addr) |
1da177e4 LT |
59 | { |
60 | writew(val, addr); | |
61 | } | |
8943212c | 62 | void iowrite16be(u16 val, void __iomem *addr) |
76637536 | 63 | { |
0eb57368 | 64 | writew_be(val, addr); |
76637536 | 65 | } |
8943212c | 66 | void iowrite32(u32 val, void __iomem *addr) |
1da177e4 LT |
67 | { |
68 | writel(val, addr); | |
69 | } | |
8943212c | 70 | void iowrite32be(u32 val, void __iomem *addr) |
76637536 | 71 | { |
0eb57368 | 72 | writel_be(val, addr); |
76637536 | 73 | } |
1da177e4 LT |
74 | EXPORT_SYMBOL(iowrite8); |
75 | EXPORT_SYMBOL(iowrite16); | |
76637536 | 76 | EXPORT_SYMBOL(iowrite16be); |
1da177e4 | 77 | EXPORT_SYMBOL(iowrite32); |
76637536 | 78 | EXPORT_SYMBOL(iowrite32be); |
d54fc90c HG |
79 | #ifdef __powerpc64__ |
80 | void iowrite64(u64 val, void __iomem *addr) | |
81 | { | |
82 | writeq(val, addr); | |
83 | } | |
84 | void iowrite64be(u64 val, void __iomem *addr) | |
85 | { | |
86 | writeq_be(val, addr); | |
87 | } | |
88 | EXPORT_SYMBOL(iowrite64); | |
89 | EXPORT_SYMBOL(iowrite64be); | |
90 | #endif /* __powerpc64__ */ | |
1da177e4 LT |
91 | |
92 | /* | |
93 | * These are the "repeat read/write" functions. Note the | |
94 | * non-CPU byte order. We do things in "IO byteorder" | |
95 | * here. | |
96 | * | |
97 | * FIXME! We could make these do EEH handling if we really | |
98 | * wanted. Not clear if we do. | |
99 | */ | |
100 | void ioread8_rep(void __iomem *addr, void *dst, unsigned long count) | |
101 | { | |
0eb57368 | 102 | readsb(addr, dst, count); |
1da177e4 LT |
103 | } |
104 | void ioread16_rep(void __iomem *addr, void *dst, unsigned long count) | |
105 | { | |
0eb57368 | 106 | readsw(addr, dst, count); |
1da177e4 LT |
107 | } |
108 | void ioread32_rep(void __iomem *addr, void *dst, unsigned long count) | |
109 | { | |
0eb57368 | 110 | readsl(addr, dst, count); |
1da177e4 LT |
111 | } |
112 | EXPORT_SYMBOL(ioread8_rep); | |
113 | EXPORT_SYMBOL(ioread16_rep); | |
114 | EXPORT_SYMBOL(ioread32_rep); | |
115 | ||
116 | void iowrite8_rep(void __iomem *addr, const void *src, unsigned long count) | |
117 | { | |
0eb57368 | 118 | writesb(addr, src, count); |
1da177e4 LT |
119 | } |
120 | void iowrite16_rep(void __iomem *addr, const void *src, unsigned long count) | |
121 | { | |
0eb57368 | 122 | writesw(addr, src, count); |
1da177e4 LT |
123 | } |
124 | void iowrite32_rep(void __iomem *addr, const void *src, unsigned long count) | |
125 | { | |
0eb57368 | 126 | writesl(addr, src, count); |
1da177e4 LT |
127 | } |
128 | EXPORT_SYMBOL(iowrite8_rep); | |
129 | EXPORT_SYMBOL(iowrite16_rep); | |
130 | EXPORT_SYMBOL(iowrite32_rep); | |
131 | ||
132 | void __iomem *ioport_map(unsigned long port, unsigned int len) | |
133 | { | |
68a64357 | 134 | return (void __iomem *) (port + _IO_BASE); |
1da177e4 LT |
135 | } |
136 | ||
137 | void ioport_unmap(void __iomem *addr) | |
138 | { | |
139 | /* Nothing to do */ | |
140 | } | |
141 | EXPORT_SYMBOL(ioport_map); | |
142 | EXPORT_SYMBOL(ioport_unmap); | |
143 | ||
81210c20 | 144 | #ifdef CONFIG_PCI |
1da177e4 LT |
145 | void pci_iounmap(struct pci_dev *dev, void __iomem *addr) |
146 | { | |
50747cb8 BH |
147 | if (isa_vaddr_is_ioport(addr)) |
148 | return; | |
149 | if (pcibios_vaddr_is_ioport(addr)) | |
150 | return; | |
151 | iounmap(addr); | |
1da177e4 | 152 | } |
50747cb8 | 153 | |
1da177e4 | 154 | EXPORT_SYMBOL(pci_iounmap); |
a85fe3fc | 155 | #endif /* CONFIG_PCI */ |