On Thu, 26 Apr 2007, Lee Schermerhorn wrote:
> I have been considering an HP-platform-specific boot option [handled by
> a new ia64 machine vec op] to re-distance the interleaved node, but for
> other platforms, such as Kame's, I think we still need the ability to
> move the DMA zones last in the Normal zone lists. Or, exclude them
> altogether?
Maybe a solution would be to have a dma_penalty option on boot? The dma
penalty is added to the dma zone. If its higher than zero then the dma
zone will become a node at that distance to other nodes.
The default is zero which would leave it as is.
If you boot with
dma_penalty=40
then a new slit entry is generated for the DMA zone and its put at that
distance.
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