1 // SPDX-License-Identifier: GPL-2.0
3 * ppc64 "iomap" interface implementation.
5 * (C) Copyright 2004 Linus Torvalds
9 #include <linux/export.h>
11 #include <asm/pci-bridge.h>
12 #include <asm/isa-bridge.h>
15 * Here comes the ppc64 implementation of the IOMAP
18 unsigned int ioread8(void __iomem *addr)
22 unsigned int ioread16(void __iomem *addr)
26 unsigned int ioread16be(void __iomem *addr)
28 return readw_be(addr);
30 unsigned int ioread32(void __iomem *addr)
34 unsigned int ioread32be(void __iomem *addr)
36 return readl_be(addr);
38 EXPORT_SYMBOL(ioread8);
39 EXPORT_SYMBOL(ioread16);
40 EXPORT_SYMBOL(ioread16be);
41 EXPORT_SYMBOL(ioread32);
42 EXPORT_SYMBOL(ioread32be);
44 u64 ioread64(void __iomem *addr)
48 u64 ioread64be(void __iomem *addr)
50 return readq_be(addr);
52 EXPORT_SYMBOL(ioread64);
53 EXPORT_SYMBOL(ioread64be);
54 #endif /* __powerpc64__ */
56 void iowrite8(u8 val, void __iomem *addr)
60 void iowrite16(u16 val, void __iomem *addr)
64 void iowrite16be(u16 val, void __iomem *addr)
68 void iowrite32(u32 val, void __iomem *addr)
72 void iowrite32be(u32 val, void __iomem *addr)
76 EXPORT_SYMBOL(iowrite8);
77 EXPORT_SYMBOL(iowrite16);
78 EXPORT_SYMBOL(iowrite16be);
79 EXPORT_SYMBOL(iowrite32);
80 EXPORT_SYMBOL(iowrite32be);
82 void iowrite64(u64 val, void __iomem *addr)
86 void iowrite64be(u64 val, void __iomem *addr)
90 EXPORT_SYMBOL(iowrite64);
91 EXPORT_SYMBOL(iowrite64be);
92 #endif /* __powerpc64__ */
95 * These are the "repeat read/write" functions. Note the
96 * non-CPU byte order. We do things in "IO byteorder"
99 * FIXME! We could make these do EEH handling if we really
100 * wanted. Not clear if we do.
102 void ioread8_rep(void __iomem *addr, void *dst, unsigned long count)
104 readsb(addr, dst, count);
106 void ioread16_rep(void __iomem *addr, void *dst, unsigned long count)
108 readsw(addr, dst, count);
110 void ioread32_rep(void __iomem *addr, void *dst, unsigned long count)
112 readsl(addr, dst, count);
114 EXPORT_SYMBOL(ioread8_rep);
115 EXPORT_SYMBOL(ioread16_rep);
116 EXPORT_SYMBOL(ioread32_rep);
118 void iowrite8_rep(void __iomem *addr, const void *src, unsigned long count)
120 writesb(addr, src, count);
122 void iowrite16_rep(void __iomem *addr, const void *src, unsigned long count)
124 writesw(addr, src, count);
126 void iowrite32_rep(void __iomem *addr, const void *src, unsigned long count)
128 writesl(addr, src, count);
130 EXPORT_SYMBOL(iowrite8_rep);
131 EXPORT_SYMBOL(iowrite16_rep);
132 EXPORT_SYMBOL(iowrite32_rep);
134 void __iomem *ioport_map(unsigned long port, unsigned int len)
136 return (void __iomem *) (port + _IO_BASE);
139 void ioport_unmap(void __iomem *addr)
143 EXPORT_SYMBOL(ioport_map);
144 EXPORT_SYMBOL(ioport_unmap);
147 void pci_iounmap(struct pci_dev *dev, void __iomem *addr)
149 if (isa_vaddr_is_ioport(addr))
151 if (pcibios_vaddr_is_ioport(addr))
156 EXPORT_SYMBOL(pci_iounmap);
157 #endif /* CONFIG_PCI */