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// SPDX-License-Identifier: GPL-2.0
/*
* ppc64 "iomap" interface implementation.
*
* (C) Copyright 2004 Linus Torvalds
*/
#include <linux/pci.h>
#include <linux/mm.h>
#include <linux/export.h>
#include <asm/io.h>
#include <asm/pci-bridge.h>
#include <asm/isa-bridge.h>
/*
* Here comes the ppc64 implementation of the IOMAP
* interfaces.
*/
unsigned int ioread8(void __iomem *addr)
{
return readb(addr);
}
unsigned int ioread16(void __iomem *addr)
{
return readw(addr);
}
unsigned int ioread16be(void __iomem *addr)
{
return readw_be(addr);
}
unsigned int ioread32(void __iomem *addr)
{
return readl(addr);
}
unsigned int ioread32be(void __iomem *addr)
{
return readl_be(addr);
}
EXPORT_SYMBOL(ioread8);
EXPORT_SYMBOL(ioread16);
EXPORT_SYMBOL(ioread16be);
EXPORT_SYMBOL(ioread32);
EXPORT_SYMBOL(ioread32be);
#ifdef __powerpc64__
u64 ioread64(void __iomem *addr)
{
return readq(addr);
}
u64 ioread64_lo_hi(void __iomem *addr)
{
return readq(addr);
}
u64 ioread64_hi_lo(void __iomem *addr)
{
return readq(addr);
}
u64 ioread64be(void __iomem *addr)
{
return readq_be(addr);
}
u64 ioread64be_lo_hi(void __iomem *addr)
{
return readq_be(addr);
}
u64 ioread64be_hi_lo(void __iomem *addr)
{
return readq_be(addr);
}
EXPORT_SYMBOL(ioread64);
EXPORT_SYMBOL(ioread64_lo_hi);
EXPORT_SYMBOL(ioread64_hi_lo);
EXPORT_SYMBOL(ioread64be);
EXPORT_SYMBOL(ioread64be_lo_hi);
EXPORT_SYMBOL(ioread64be_hi_lo);
#endif /* __powerpc64__ */
void iowrite8(u8 val, void __iomem *addr)
{
writeb(val, addr);
}
void iowrite16(u16 val, void __iomem *addr)
{
writew(val, addr);
}
void iowrite16be(u16 val, void __iomem *addr)
{
writew_be(val, addr);
}
void iowrite32(u32 val, void __iomem *addr)
{
writel(val, addr);
}
void iowrite32be(u32 val, void __iomem *addr)
{
writel_be(val, addr);
}
EXPORT_SYMBOL(iowrite8);
EXPORT_SYMBOL(iowrite16);
EXPORT_SYMBOL(iowrite16be);
EXPORT_SYMBOL(iowrite32);
EXPORT_SYMBOL(iowrite32be);
#ifdef __powerpc64__
void iowrite64(u64 val, void __iomem *addr)
{
writeq(val, addr);
}
void iowrite64_lo_hi(u64 val, void __iomem *addr)
{
writeq(val, addr);
}
void iowrite64_hi_lo(u64 val, void __iomem *addr)
{
writeq(val, addr);
}
void iowrite64be(u64 val, void __iomem *addr)
{
writeq_be(val, addr);
}
void iowrite64be_lo_hi(u64 val, void __iomem *addr)
{
writeq_be(val, addr);
}
void iowrite64be_hi_lo(u64 val, void __iomem *addr)
{
writeq_be(val, addr);
}
EXPORT_SYMBOL(iowrite64);
EXPORT_SYMBOL(iowrite64_lo_hi);
EXPORT_SYMBOL(iowrite64_hi_lo);
EXPORT_SYMBOL(iowrite64be);
EXPORT_SYMBOL(iowrite64be_lo_hi);
EXPORT_SYMBOL(iowrite64be_hi_lo);
#endif /* __powerpc64__ */
/*
* These are the "repeat read/write" functions. Note the
* non-CPU byte order. We do things in "IO byteorder"
* here.
*
* FIXME! We could make these do EEH handling if we really
* wanted. Not clear if we do.
*/
void ioread8_rep(void __iomem *addr, void *dst, unsigned long count)
{
readsb(addr, dst, count);
}
void ioread16_rep(void __iomem *addr, void *dst, unsigned long count)
{
readsw(addr, dst, count);
}
void ioread32_rep(void __iomem *addr, void *dst, unsigned long count)
{
readsl(addr, dst, count);
}
EXPORT_SYMBOL(ioread8_rep);
EXPORT_SYMBOL(ioread16_rep);
EXPORT_SYMBOL(ioread32_rep);
void iowrite8_rep(void __iomem *addr, const void *src, unsigned long count)
{
writesb(addr, src, count);
}
void iowrite16_rep(void __iomem *addr, const void *src, unsigned long count)
{
writesw(addr, src, count);
}
void iowrite32_rep(void __iomem *addr, const void *src, unsigned long count)
{
writesl(addr, src, count);
}
EXPORT_SYMBOL(iowrite8_rep);
EXPORT_SYMBOL(iowrite16_rep);
EXPORT_SYMBOL(iowrite32_rep);
void __iomem *ioport_map(unsigned long port, unsigned int len)
{
return (void __iomem *) (port + _IO_BASE);
}
void ioport_unmap(void __iomem *addr)
{
/* Nothing to do */
}
EXPORT_SYMBOL(ioport_map);
EXPORT_SYMBOL(ioport_unmap);
#ifdef CONFIG_PCI
void pci_iounmap(struct pci_dev *dev, void __iomem *addr)
{
if (isa_vaddr_is_ioport(addr))
return;
if (pcibios_vaddr_is_ioport(addr))
return;
iounmap(addr);
}
EXPORT_SYMBOL(pci_iounmap);
#endif /* CONFIG_PCI */
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