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Commit | Line | Data |
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b2441318 | 1 | // SPDX-License-Identifier: GPL-2.0 |
1da177e4 | 2 | /* |
1da177e4 LT |
3 | * ppc64 "iomap" interface implementation. |
4 | * | |
5 | * (C) Copyright 2004 Linus Torvalds | |
6 | */ | |
1da177e4 LT |
7 | #include <linux/pci.h> |
8 | #include <linux/mm.h> | |
93087948 | 9 | #include <linux/export.h> |
1da177e4 | 10 | #include <asm/io.h> |
50747cb8 | 11 | #include <asm/pci-bridge.h> |
38e9d36b | 12 | #include <asm/isa-bridge.h> |
1da177e4 LT |
13 | |
14 | /* | |
15 | * Here comes the ppc64 implementation of the IOMAP | |
16 | * interfaces. | |
17 | */ | |
8943212c | 18 | unsigned int ioread8(void __iomem *addr) |
1da177e4 LT |
19 | { |
20 | return readb(addr); | |
21 | } | |
8943212c | 22 | unsigned int ioread16(void __iomem *addr) |
1da177e4 LT |
23 | { |
24 | return readw(addr); | |
25 | } | |
8943212c | 26 | unsigned int ioread16be(void __iomem *addr) |
76637536 | 27 | { |
0eb57368 | 28 | return readw_be(addr); |
76637536 | 29 | } |
8943212c | 30 | unsigned int ioread32(void __iomem *addr) |
1da177e4 LT |
31 | { |
32 | return readl(addr); | |
33 | } | |
8943212c | 34 | unsigned int ioread32be(void __iomem *addr) |
76637536 | 35 | { |
0eb57368 | 36 | return readl_be(addr); |
76637536 | 37 | } |
1da177e4 LT |
38 | EXPORT_SYMBOL(ioread8); |
39 | EXPORT_SYMBOL(ioread16); | |
76637536 | 40 | EXPORT_SYMBOL(ioread16be); |
1da177e4 | 41 | EXPORT_SYMBOL(ioread32); |
76637536 | 42 | EXPORT_SYMBOL(ioread32be); |
d54fc90c HG |
43 | #ifdef __powerpc64__ |
44 | u64 ioread64(void __iomem *addr) | |
45 | { | |
46 | return readq(addr); | |
47 | } | |
48 | u64 ioread64be(void __iomem *addr) | |
49 | { | |
50 | return readq_be(addr); | |
51 | } | |
52 | EXPORT_SYMBOL(ioread64); | |
53 | EXPORT_SYMBOL(ioread64be); | |
54 | #endif /* __powerpc64__ */ | |
1da177e4 | 55 | |
8943212c | 56 | void iowrite8(u8 val, void __iomem *addr) |
1da177e4 LT |
57 | { |
58 | writeb(val, addr); | |
59 | } | |
8943212c | 60 | void iowrite16(u16 val, void __iomem *addr) |
1da177e4 LT |
61 | { |
62 | writew(val, addr); | |
63 | } | |
8943212c | 64 | void iowrite16be(u16 val, void __iomem *addr) |
76637536 | 65 | { |
0eb57368 | 66 | writew_be(val, addr); |
76637536 | 67 | } |
8943212c | 68 | void iowrite32(u32 val, void __iomem *addr) |
1da177e4 LT |
69 | { |
70 | writel(val, addr); | |
71 | } | |
8943212c | 72 | void iowrite32be(u32 val, void __iomem *addr) |
76637536 | 73 | { |
0eb57368 | 74 | writel_be(val, addr); |
76637536 | 75 | } |
1da177e4 LT |
76 | EXPORT_SYMBOL(iowrite8); |
77 | EXPORT_SYMBOL(iowrite16); | |
76637536 | 78 | EXPORT_SYMBOL(iowrite16be); |
1da177e4 | 79 | EXPORT_SYMBOL(iowrite32); |
76637536 | 80 | EXPORT_SYMBOL(iowrite32be); |
d54fc90c HG |
81 | #ifdef __powerpc64__ |
82 | void iowrite64(u64 val, void __iomem *addr) | |
83 | { | |
84 | writeq(val, addr); | |
85 | } | |
86 | void iowrite64be(u64 val, void __iomem *addr) | |
87 | { | |
88 | writeq_be(val, addr); | |
89 | } | |
90 | EXPORT_SYMBOL(iowrite64); | |
91 | EXPORT_SYMBOL(iowrite64be); | |
92 | #endif /* __powerpc64__ */ | |
1da177e4 LT |
93 | |
94 | /* | |
95 | * These are the "repeat read/write" functions. Note the | |
96 | * non-CPU byte order. We do things in "IO byteorder" | |
97 | * here. | |
98 | * | |
99 | * FIXME! We could make these do EEH handling if we really | |
100 | * wanted. Not clear if we do. | |
101 | */ | |
102 | void ioread8_rep(void __iomem *addr, void *dst, unsigned long count) | |
103 | { | |
0eb57368 | 104 | readsb(addr, dst, count); |
1da177e4 LT |
105 | } |
106 | void ioread16_rep(void __iomem *addr, void *dst, unsigned long count) | |
107 | { | |
0eb57368 | 108 | readsw(addr, dst, count); |
1da177e4 LT |
109 | } |
110 | void ioread32_rep(void __iomem *addr, void *dst, unsigned long count) | |
111 | { | |
0eb57368 | 112 | readsl(addr, dst, count); |
1da177e4 LT |
113 | } |
114 | EXPORT_SYMBOL(ioread8_rep); | |
115 | EXPORT_SYMBOL(ioread16_rep); | |
116 | EXPORT_SYMBOL(ioread32_rep); | |
117 | ||
118 | void iowrite8_rep(void __iomem *addr, const void *src, unsigned long count) | |
119 | { | |
0eb57368 | 120 | writesb(addr, src, count); |
1da177e4 LT |
121 | } |
122 | void iowrite16_rep(void __iomem *addr, const void *src, unsigned long count) | |
123 | { | |
0eb57368 | 124 | writesw(addr, src, count); |
1da177e4 LT |
125 | } |
126 | void iowrite32_rep(void __iomem *addr, const void *src, unsigned long count) | |
127 | { | |
0eb57368 | 128 | writesl(addr, src, count); |
1da177e4 LT |
129 | } |
130 | EXPORT_SYMBOL(iowrite8_rep); | |
131 | EXPORT_SYMBOL(iowrite16_rep); | |
132 | EXPORT_SYMBOL(iowrite32_rep); | |
133 | ||
134 | void __iomem *ioport_map(unsigned long port, unsigned int len) | |
135 | { | |
68a64357 | 136 | return (void __iomem *) (port + _IO_BASE); |
1da177e4 LT |
137 | } |
138 | ||
139 | void ioport_unmap(void __iomem *addr) | |
140 | { | |
141 | /* Nothing to do */ | |
142 | } | |
143 | EXPORT_SYMBOL(ioport_map); | |
144 | EXPORT_SYMBOL(ioport_unmap); | |
145 | ||
81210c20 | 146 | #ifdef CONFIG_PCI |
1da177e4 LT |
147 | void pci_iounmap(struct pci_dev *dev, void __iomem *addr) |
148 | { | |
50747cb8 BH |
149 | if (isa_vaddr_is_ioport(addr)) |
150 | return; | |
151 | if (pcibios_vaddr_is_ioport(addr)) | |
152 | return; | |
153 | iounmap(addr); | |
1da177e4 | 154 | } |
50747cb8 | 155 | |
1da177e4 | 156 | EXPORT_SYMBOL(pci_iounmap); |
a85fe3fc | 157 | #endif /* CONFIG_PCI */ |