2 * arch/ppc64/kernel/iomap.c
4 * ppc64 "iomap" interface implementation.
6 * (C) Copyright 2004 Linus Torvalds
8 #include <linux/init.h>
14 * Here comes the ppc64 implementation of the IOMAP
17 unsigned int fastcall ioread8(void __iomem *addr)
21 unsigned int fastcall ioread16(void __iomem *addr)
25 unsigned int fastcall ioread16be(void __iomem *addr)
29 unsigned int fastcall ioread32(void __iomem *addr)
33 unsigned int fastcall ioread32be(void __iomem *addr)
37 EXPORT_SYMBOL(ioread8);
38 EXPORT_SYMBOL(ioread16);
39 EXPORT_SYMBOL(ioread16be);
40 EXPORT_SYMBOL(ioread32);
41 EXPORT_SYMBOL(ioread32be);
43 void fastcall iowrite8(u8 val, void __iomem *addr)
47 void fastcall iowrite16(u16 val, void __iomem *addr)
51 void fastcall iowrite16be(u16 val, void __iomem *addr)
55 void fastcall iowrite32(u32 val, void __iomem *addr)
59 void fastcall iowrite32be(u32 val, void __iomem *addr)
63 EXPORT_SYMBOL(iowrite8);
64 EXPORT_SYMBOL(iowrite16);
65 EXPORT_SYMBOL(iowrite16be);
66 EXPORT_SYMBOL(iowrite32);
67 EXPORT_SYMBOL(iowrite32be);
70 * These are the "repeat read/write" functions. Note the
71 * non-CPU byte order. We do things in "IO byteorder"
74 * FIXME! We could make these do EEH handling if we really
75 * wanted. Not clear if we do.
77 void ioread8_rep(void __iomem *addr, void *dst, unsigned long count)
79 _insb((u8 __iomem *) addr, dst, count);
81 void ioread16_rep(void __iomem *addr, void *dst, unsigned long count)
83 _insw_ns((u16 __iomem *) addr, dst, count);
85 void ioread32_rep(void __iomem *addr, void *dst, unsigned long count)
87 _insl_ns((u32 __iomem *) addr, dst, count);
89 EXPORT_SYMBOL(ioread8_rep);
90 EXPORT_SYMBOL(ioread16_rep);
91 EXPORT_SYMBOL(ioread32_rep);
93 void iowrite8_rep(void __iomem *addr, const void *src, unsigned long count)
95 _outsb((u8 __iomem *) addr, src, count);
97 void iowrite16_rep(void __iomem *addr, const void *src, unsigned long count)
99 _outsw_ns((u16 __iomem *) addr, src, count);
101 void iowrite32_rep(void __iomem *addr, const void *src, unsigned long count)
103 _outsl_ns((u32 __iomem *) addr, src, count);
105 EXPORT_SYMBOL(iowrite8_rep);
106 EXPORT_SYMBOL(iowrite16_rep);
107 EXPORT_SYMBOL(iowrite32_rep);
109 void __iomem *ioport_map(unsigned long port, unsigned int len)
111 if (!_IO_IS_VALID(port))
113 return (void __iomem *) (port+pci_io_base);
116 void ioport_unmap(void __iomem *addr)
120 EXPORT_SYMBOL(ioport_map);
121 EXPORT_SYMBOL(ioport_unmap);
123 void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max)
125 unsigned long start = pci_resource_start(dev, bar);
126 unsigned long len = pci_resource_len(dev, bar);
127 unsigned long flags = pci_resource_flags(dev, bar);
131 if (max && len > max)
133 if (flags & IORESOURCE_IO)
134 return ioport_map(start, len);
135 if (flags & IORESOURCE_MEM)
136 return ioremap(start, len);
141 void pci_iounmap(struct pci_dev *dev, void __iomem *addr)
145 EXPORT_SYMBOL(pci_iomap);
146 EXPORT_SYMBOL(pci_iounmap);