Re: [PATCH 2 of 3] memcpy32 for x86_64

[Bryan O'Sullivan]

On Thu, 2006-01-12 at 10:38 +0200, Denis Vlasenko wrote:

> 2) On all current x86_64 hardware each 64bit access from/to
> IO mapped addresses is always converted to two 32bit accesses.

This is true for 64-bit writes over Hypertransport (reads don't get
split up this way), but not for PCI-Express memory writes, which remain
atomic 64-bit.  I'll be converting the 64-bit accesses to 32-bit, as you
and Andi suggested.

	<b

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