Thread (13 messages) 13 messages, 4 authors, 2001-07-01

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

From: Justin (Gus) Hurwitz <hidden>
Date: 2001-06-28 08:52:53

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).

TIA,
--Gus

On Tue, 26 Jun 2001 jtm@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@jump.net    looking for the truth," and so it goes away. Puzzling.
		     - from _Zen_and_the_Art_of_Motorcycle_Maintenance_

** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
Keyboard shortcuts
hback out one level
jnext message in thread
kprevious message in thread
ldrill in
Escclose help / fold thread tree
?toggle this help