Re: [PATCH][MIPS] add DMA declare coherent memory support

[Thomas Bogendoerfer <tsbogend@alpha.franken.de>]

On Thu, Jun 04, 2009 at 12:16:04AM +0900, Yoichi Yuasa wrote:
> 
> Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>

a little bit more description what this is all about would be quite
helpful. I also see a problem as there is at least one MIPS machine
(SGI IP28), which doesn't support coherent memory (at least not without
playing dirty games with the memory controller, which in return makes
the machine slow). 

Thomas.

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