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Date: Tue, 10 May 2005 16:14:51 +0300
From: Pantelis Antoniou <panto@intracom.gr>
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To: Matt Porter <mporter@kernel.crashing.org>
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Cc: Tom Rini <trini@kernel.crashing.org>,
	linuxppc-embedded <linuxppc-embedded@ozlabs.org>
Subject: Re: [PATCH  03/04] Freescale Ethernet combined driver
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Matt Porter wrote:
> On Tue, May 10, 2005 at 08:13:48AM -0400, Dan Malek wrote:
> 
>>On May 10, 2005, at 7:17 AM, Pantelis Antoniou wrote:
>>
>>
>>>This patch replace iopa use with virt_to_phys.
>>
>>Not gonna work .....
>>
>>When you map uncached on 8xx you get a new vmalloc()
>>space.  The virt_to_xxx macros don't work on those addresses.
>>You need to use the dma_consistent() function, stash the
>>real physical address it returns and then use it where
>>appropriate.
> 
> 
> That and the use of virt_to_* and friends is deprecated by
> the DMA API. You'll never get that upstream even if it were
> a case where it did work.  That's a good thing to know for
> anybody doing other drivers...
> 
> -Matt
> 
> 

OK then.

What's the recommended function to call to go from a
virtual -> physical address, but without doing a cache
flush/invalidate?

Regards

Pantelis