2 * ppc64 "iomap" interface implementation.
4 * (C) Copyright 2004 Linus Torvalds
6 #include <linux/init.h>
10 #include <asm/pci-bridge.h>
13 * Here comes the ppc64 implementation of the IOMAP
16 unsigned int ioread8(void __iomem
*addr
)
20 unsigned int ioread16(void __iomem
*addr
)
24 unsigned int ioread16be(void __iomem
*addr
)
28 unsigned int ioread32(void __iomem
*addr
)
32 unsigned int ioread32be(void __iomem
*addr
)
36 EXPORT_SYMBOL(ioread8
);
37 EXPORT_SYMBOL(ioread16
);
38 EXPORT_SYMBOL(ioread16be
);
39 EXPORT_SYMBOL(ioread32
);
40 EXPORT_SYMBOL(ioread32be
);
42 void iowrite8(u8 val
, void __iomem
*addr
)
46 void iowrite16(u16 val
, void __iomem
*addr
)
50 void iowrite16be(u16 val
, void __iomem
*addr
)
54 void iowrite32(u32 val
, void __iomem
*addr
)
58 void iowrite32be(u32 val
, void __iomem
*addr
)
62 EXPORT_SYMBOL(iowrite8
);
63 EXPORT_SYMBOL(iowrite16
);
64 EXPORT_SYMBOL(iowrite16be
);
65 EXPORT_SYMBOL(iowrite32
);
66 EXPORT_SYMBOL(iowrite32be
);
69 * These are the "repeat read/write" functions. Note the
70 * non-CPU byte order. We do things in "IO byteorder"
73 * FIXME! We could make these do EEH handling if we really
74 * wanted. Not clear if we do.
76 void ioread8_rep(void __iomem
*addr
, void *dst
, unsigned long count
)
78 _insb((u8 __iomem
*) addr
, dst
, count
);
80 void ioread16_rep(void __iomem
*addr
, void *dst
, unsigned long count
)
82 _insw_ns((u16 __iomem
*) addr
, dst
, count
);
84 void ioread32_rep(void __iomem
*addr
, void *dst
, unsigned long count
)
86 _insl_ns((u32 __iomem
*) addr
, dst
, count
);
88 EXPORT_SYMBOL(ioread8_rep
);
89 EXPORT_SYMBOL(ioread16_rep
);
90 EXPORT_SYMBOL(ioread32_rep
);
92 void iowrite8_rep(void __iomem
*addr
, const void *src
, unsigned long count
)
94 _outsb((u8 __iomem
*) addr
, src
, count
);
96 void iowrite16_rep(void __iomem
*addr
, const void *src
, unsigned long count
)
98 _outsw_ns((u16 __iomem
*) addr
, src
, count
);
100 void iowrite32_rep(void __iomem
*addr
, const void *src
, unsigned long count
)
102 _outsl_ns((u32 __iomem
*) addr
, src
, count
);
104 EXPORT_SYMBOL(iowrite8_rep
);
105 EXPORT_SYMBOL(iowrite16_rep
);
106 EXPORT_SYMBOL(iowrite32_rep
);
108 void __iomem
*ioport_map(unsigned long port
, unsigned int len
)
110 return (void __iomem
*) (port
+ _IO_BASE
);
113 void ioport_unmap(void __iomem
*addr
)
117 EXPORT_SYMBOL(ioport_map
);
118 EXPORT_SYMBOL(ioport_unmap
);
121 void __iomem
*pci_iomap(struct pci_dev
*dev
, int bar
, unsigned long max
)
123 resource_size_t start
= pci_resource_start(dev
, bar
);
124 resource_size_t len
= pci_resource_len(dev
, bar
);
125 unsigned long flags
= pci_resource_flags(dev
, bar
);
129 if (max
&& len
> max
)
131 if (flags
& IORESOURCE_IO
)
132 return ioport_map(start
, len
);
133 if (flags
& IORESOURCE_MEM
)
134 return ioremap(start
, len
);
139 void pci_iounmap(struct pci_dev
*dev
, void __iomem
*addr
)
141 if (isa_vaddr_is_ioport(addr
))
143 if (pcibios_vaddr_is_ioport(addr
))
148 EXPORT_SYMBOL(pci_iomap
);
149 EXPORT_SYMBOL(pci_iounmap
);
150 #endif /* CONFIG_PCI */