(allocating non-cachable memory) (or More on the i82596)

Justin (Gus) Hurwitz ghurwitz at dyndns.com
Thu Jun 28 18:52:53 EST 2001

Did yo ever get a reply to this? That sounds like just what I want to do
(well, it sounds just like what our vxworks code does to do what I want to
do, which I guess is good enough).


On Tue, 26 Jun 2001 jtm at smoothsmoothie.com wrote:

> I am looking for a solution to a similar problem. I am writing a
> driver for an FCC on the 8260 in transparent mode, and need
> to allocate buffer memory. The buffer memory will get filled
> via DMA, and therefore must not be cached. Will the following work
> correctly?
> 	vaddr = kmalloc(BUF_SIZE, GFP_DMA);
> 	paddr = __pa(vaddr);
> Thanks.
> --
> Jay Monkman	    The truth knocks on the door and you say "Go away, I'm
> monkman at jump.net    looking for the truth," and so it goes away. Puzzling.
> 		     - from _Zen_and_the_Art_of_Motorcycle_Maintenance_

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