From: Logan Gunthorpe <logang@deltatee.com>
Subject: Re: [PATCH 4/7] alpha: provide ioread64 and iowrite64 implementations
Date: Thu, 22 Jun 2017 15:10:20 -0600
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Cc: Alan Cox <gnomes@lxorguk.ukuu.org.uk>,
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To: Arnd Bergmann <arnd@arndb.de>
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On 6/22/2017 3:03 PM, Arnd Bergmann wrote:
> Drivers that want a non-atomic variant should include either
> include/linux/io-64-nonatomic-hi-lo.h or include/linux/io-64-nonatomic-lo-hi.h
> depending on what they need. Drivers that require 64-bit I/O should
> probably just depend on CONFIG_64BIT and maybe use readq/writeq.

Ok, I will work something like that up.

We'll still need a patch similar to patch 2 (less the non-atomic 
versions) seeing even CONFIG_GENERIC_IOMAP arches don't actually have a 
working ioread64/iowrite64 implementation.

Thanks,

Logan