1// SPDX-License-Identifier: GPL-2.0
 2/*
 3 * ppc64 "iomap" interface implementation.
 4 *
 5 * (C) Copyright 2004 Linus Torvalds
 6 */
 7#include <linux/pci.h>
 8#include <linux/mm.h>
 9#include <linux/export.h>
10#include <asm/io.h>
11#include <asm/pci-bridge.h>
12#include <asm/isa-bridge.h>
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
13
14void __iomem *ioport_map(unsigned long port, unsigned int len)
15{
16	return (void __iomem *) (port + _IO_BASE);
17}
 
 
 
 
 
18EXPORT_SYMBOL(ioport_map);
 
19
20#ifdef CONFIG_PCI
21void pci_iounmap(struct pci_dev *dev, void __iomem *addr)
22{
23	if (isa_vaddr_is_ioport(addr))
24		return;
25	if (pcibios_vaddr_is_ioport(addr))
26		return;
27	iounmap(addr);
28}
29
30EXPORT_SYMBOL(pci_iounmap);
31#endif /* CONFIG_PCI */

 
  1/*
  2 * ppc64 "iomap" interface implementation.
  3 *
  4 * (C) Copyright 2004 Linus Torvalds
  5 */
  6#include <linux/pci.h>
  7#include <linux/mm.h>
  8#include <linux/export.h>
  9#include <asm/io.h>
 10#include <asm/pci-bridge.h>
 11
 12/*
 13 * Here comes the ppc64 implementation of the IOMAP 
 14 * interfaces.
 15 */
 16unsigned int ioread8(void __iomem *addr)
 17{
 18	return readb(addr);
 19}
 20unsigned int ioread16(void __iomem *addr)
 21{
 22	return readw(addr);
 23}
 24unsigned int ioread16be(void __iomem *addr)
 25{
 26	return in_be16(addr);
 27}
 28unsigned int ioread32(void __iomem *addr)
 29{
 30	return readl(addr);
 31}
 32unsigned int ioread32be(void __iomem *addr)
 33{
 34	return in_be32(addr);
 35}
 36EXPORT_SYMBOL(ioread8);
 37EXPORT_SYMBOL(ioread16);
 38EXPORT_SYMBOL(ioread16be);
 39EXPORT_SYMBOL(ioread32);
 40EXPORT_SYMBOL(ioread32be);
 41
 42void iowrite8(u8 val, void __iomem *addr)
 43{
 44	writeb(val, addr);
 45}
 46void iowrite16(u16 val, void __iomem *addr)
 47{
 48	writew(val, addr);
 49}
 50void iowrite16be(u16 val, void __iomem *addr)
 51{
 52	out_be16(addr, val);
 53}
 54void iowrite32(u32 val, void __iomem *addr)
 55{
 56	writel(val, addr);
 57}
 58void iowrite32be(u32 val, void __iomem *addr)
 59{
 60	out_be32(addr, val);
 61}
 62EXPORT_SYMBOL(iowrite8);
 63EXPORT_SYMBOL(iowrite16);
 64EXPORT_SYMBOL(iowrite16be);
 65EXPORT_SYMBOL(iowrite32);
 66EXPORT_SYMBOL(iowrite32be);
 67
 68/*
 69 * These are the "repeat read/write" functions. Note the
 70 * non-CPU byte order. We do things in "IO byteorder"
 71 * here.
 72 *
 73 * FIXME! We could make these do EEH handling if we really
 74 * wanted. Not clear if we do.
 75 */
 76void ioread8_rep(void __iomem *addr, void *dst, unsigned long count)
 77{
 78	_insb((u8 __iomem *) addr, dst, count);
 79}
 80void ioread16_rep(void __iomem *addr, void *dst, unsigned long count)
 81{
 82	_insw_ns((u16 __iomem *) addr, dst, count);
 83}
 84void ioread32_rep(void __iomem *addr, void *dst, unsigned long count)
 85{
 86	_insl_ns((u32 __iomem *) addr, dst, count);
 87}
 88EXPORT_SYMBOL(ioread8_rep);
 89EXPORT_SYMBOL(ioread16_rep);
 90EXPORT_SYMBOL(ioread32_rep);
 91
 92void iowrite8_rep(void __iomem *addr, const void *src, unsigned long count)
 93{
 94	_outsb((u8 __iomem *) addr, src, count);
 95}
 96void iowrite16_rep(void __iomem *addr, const void *src, unsigned long count)
 97{
 98	_outsw_ns((u16 __iomem *) addr, src, count);
 99}
100void iowrite32_rep(void __iomem *addr, const void *src, unsigned long count)
101{
102	_outsl_ns((u32 __iomem *) addr, src, count);
103}
104EXPORT_SYMBOL(iowrite8_rep);
105EXPORT_SYMBOL(iowrite16_rep);
106EXPORT_SYMBOL(iowrite32_rep);
107
108void __iomem *ioport_map(unsigned long port, unsigned int len)
109{
110	return (void __iomem *) (port + _IO_BASE);
111}
112
113void ioport_unmap(void __iomem *addr)
114{
115	/* Nothing to do */
116}
117EXPORT_SYMBOL(ioport_map);
118EXPORT_SYMBOL(ioport_unmap);
119
120#ifdef CONFIG_PCI
121void pci_iounmap(struct pci_dev *dev, void __iomem *addr)
122{
123	if (isa_vaddr_is_ioport(addr))
124		return;
125	if (pcibios_vaddr_is_ioport(addr))
126		return;
127	iounmap(addr);
128}
129
130EXPORT_SYMBOL(pci_iounmap);
131#endif /* CONFIG_PCI */