[PATCH v2 4/8] powerpc: add io{read,write}64 accessors

[Horia Ioan Geanta Neag]

On 5/5/2016 6:37 PM, Horia Geantă wrote:
> This will allow device drivers to consistently use io{read,write}XX
> also for 64-bit accesses.
> 
> Signed-off-by: Horia Geantă <horia.geanta at nxp.com>

It would be great if PPC maintainers could Ack this patch.

As stated in the cover letter: https://lkml.org/lkml/2016/5/5/340
I'd like to go with the whole patch set via cryptodev-2.6 tree.

Thanks,
Horia

> ---
>  arch/powerpc/kernel/iomap.c | 24 ++++++++++++++++++++++++
>  1 file changed, 24 insertions(+)
> 
> 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
>