Re: [PATCH 2/5] dma_map_sg_ring() helper

[David Miller]

From: Rusty Russell <rusty@xxxxxxxxxxxxxxx>
Date: Fri, 21 Dec 2007 11:35:12 +1100

> On Friday 21 December 2007 11:00:27 FUJITA Tomonori wrote:
> > We need to pass the whole sg entries to the IOMMUs at a time.
> 
> Hi Fujita,
> 
>     OK, it's certainly possible to have an arch override.  For which 
> architecture is this BTW?

SPARC64, POWERPC, maybe IA-64 etc.

Basically any platform that potentially does virtual
remamping and thus linearization.

I think it should always be provided, the new APIs give
less information to the implementation and that's a step
backwards.
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