Re: [PATCH 1/9] [I/OAT] DMA memcpy subsystem

From: Olof Johansson
Date: Thu May 25 2006 - 14:10:19 EST


On Thu, May 25, 2006 at 10:59:40AM -0700, Olof Johansson wrote:

> Is there a specific reason for why you chose to export 3 different
> memcpu calls? They're all just wrapped to the same internals.
>
> It would seem to make sense to have the client do their own
> page_address(page) + offset calculations and just export one function?

Nevermind. I'm too used to 64-bit environments where all memory is
always addressable to the kernel. There's obvious reasons to do it on
32-bit platforms to avoid the extra kernel mapping.


-Olof
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