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| author |   Horia Geantă <horia.geanta@nxp.com> | 2016-05-19 18:11:10 +0300 |
|---|---|---|
| committer |   Herbert Xu <herbert@gondor.apana.org.au> | 2016-05-31 16:41:52 +0800 |
| commit | d54fc90cc9723d73eef25d09efcef412a6c89d60 (patch) | |
| tree | 21d20f4d3014fc5151d8883e18999e437d99f333 /arch | |
| parent | arm64: add io{read,write}64be accessors (diff) | |
| download | linux-dev-d54fc90cc9723d73eef25d09efcef412a6c89d60.tar.xz linux-dev-d54fc90cc9723d73eef25d09efcef412a6c89d60.zip | |
powerpc: add io{read,write}64 accessors
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>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/kernel/iomap.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/iomap.c b/arch/powerpc/kernel/iomap.c index 12e48d56f771..3963f0b68d52 100644 --- a/arch/powerpc/kernel/iomap.c +++ b/arch/powerpc/kernel/iomap.c @@ -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 |