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powerpc: add io{read,write}64 accessors

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This will allow device drivers to consistently use io{read,write}XX
also for 64-bit accesses.

Acked-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Horia Geantă 2016-05-19 18:11:10 +03:00 committed by Herbert Xu
parent 2a41bfbc03
commit d54fc90cc9
1 changed files with 24 additions and 0 deletions
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24
arch/powerpc/kernel/iomap.c
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@ -38,6 +38,18 @@ EXPORT_SYMBOL(ioread16);
EXPORT_SYMBOL(ioread16be);
EXPORT_SYMBOL(ioread32);
EXPORT_SYMBOL(ioread32be);
#ifdef __powerpc64__
u64 ioread64(void __iomem *addr)
{
return readq(addr);
}
u64 ioread64be(void __iomem *addr)
{
return readq_be(addr);
}
EXPORT_SYMBOL(ioread64);
EXPORT_SYMBOL(ioread64be);
#endif /* __powerpc64__ */
void iowrite8(u8 val, void __iomem *addr)
{
@ -64,6 +76,18 @@ 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 iowrite64be(u64 val, void __iomem *addr)
{
writeq_be(val, addr);
}
EXPORT_SYMBOL(iowrite64);
EXPORT_SYMBOL(iowrite64be);
#endif /* __powerpc64__ */
/*
* These are the "repeat read/write" functions. Note the