Messages in this thread | | | Date | Tue, 4 Jul 2006 13:02:42 +0100 | From | Christoph Hellwig <> | Subject | Re: [RFC 0/8] Reduce MAX_NR_ZONES and remove useless zones. |
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On Mon, Jul 03, 2006 at 04:26:57PM -0700, Christoph Lameter wrote: > > Which btw is utterly wrong. It should have a 4GB ZONE_DMA32 and everything > > else in ZONE_NORMAL. > > So we want to change the definition of ZONE_DMA to refer to the first 16MB > only? ZONE_DMA32 is always a 4GB border?
The definition of ZONE_DMA32 is to be te 32bit border. I think we should implement it wherever possible but at least on all architectures that maybe have non-iommu implementations. ZONE_DMA should be an arch-specific low memory zone.
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