From: Andi Kleen <andi@firstfloor.org>
To: Bjorn Helgaas <bjorn.helgaas@hp.com>
Cc: Huang Ying <ying.huang@intel.com>,
"linux-acpi@vger.kernel.org" <linux-acpi@vger.kernel.org>
Subject: Re: acpi_atomic_read() requirements
Date: Fri, 3 Sep 2010 11:17:05 +0200 [thread overview]
Message-ID: <20100903111705.3ae78159@basil.nowhere.org> (raw)
In-Reply-To: <201009022232.45290.bjorn.helgaas@hp.com>
>
> Good. Unless there's a spec requirement for 64-bit accesses in this
> area, I think it's better to do it the same way as acpi_read(), just
> so we're as consistent as possible.
I'm not sure if the spec explicit asks for it, but doing a full
64bit access would be in the spirit of it at least.
On the other hand I would expect hardware that really requires 64bit
to be rare because 32bit OS would always have some trouble with
it.
-Andi
--
ak@linux.intel.com -- Speaking for myself only.
next prev parent reply other threads:[~2010-09-03 9:17 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-03 1:34 acpi_atomic_read() requirements Bjorn Helgaas
2010-09-03 1:49 ` Huang Ying
2010-09-03 4:32 ` Bjorn Helgaas
2010-09-03 9:17 ` Andi Kleen [this message]
2010-09-03 15:00 ` Bjorn Helgaas
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