Re: 2.6.10-rc2-mm4

[William Lee Irwin III]

On Tue, 2004-11-30 at 10:21 -0800, Andrew Morton wrote:
>> For pages which have a physical address <4G.  I assume this was motivated
>> by the lack of an IOMMU on ia32e?

On Tue, Nov 30, 2004 at 07:25:10PM +0100, Arjan van de Ven wrote:
> but there's the swiommu for those... so that can't be it
> realistically....
> Is there code using the zone GFP mask yet ??

ZONE_NORMAL and ZONE_DMA are both too overloaded to handle the 4GB
boundary. And it makes a lot of sense on more machine types than x86-64
(e.g. ia64, ia32 and others with 32-bit PCI but no zone representing it).


-- wli
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