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Date: Mon, 25 Aug 2008 10:33:30 -0500
From: Scott Wood <scottwood@freescale.com>
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To: rmcguire@videopresence.com
Subject: Re: virt_to_phys() in drivers w/dma - MPC8xxx
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Russell McGuire wrote:
> So shouldn't we be using like dma_alloc_coherent, and then tracking the dma
> address separately as a variable, and use it when necessary instead of
> calling virt_to_phys()?

Yes.  On 8xxx (but not 8xx, and not with 36-bit memory), there'll be no 
practical difference, but the DMA mapping API *should* be used.

-Scott