Re: A question about ZONE_DMA

From: Andi Kleen
Date: Wed Oct 13 2010 - 12:08:06 EST


Casey Dahlin <cdahlin@xxxxxxxxxx> writes:

> Thanks for the quick replies. My youth affords me the luxury of not knowing
> much about floppy drives or parports :). All makes sense now.

In addition it is used as fallback for all kinds of other DMA which is
less than 32bits. e.g. there used to be popular systems with 31 or 29
bits addressing capability.

-Andi
--
ak@xxxxxxxxxxxxxxx -- Speaking for myself only.
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