On Wed, 4 Aug 2010 16:07:52 +1000
Peter Crosthwaite <peter.crosthwaite@petalogix.com> wrote:

quoted text
> I am currently developing Kernel code to allocate and reserve a large
> (64MB) contiguous buffer for DMA.

A buffer needs to be physically continuous (your hardware can't do
scatter gather)? If so, as already pointed out, there is no pretty
solution for it.

There are some drivers that need to do such so the issue has been
under discussion:

http://marc.info/?l=linux-mm&m=128015343705933&w=2
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