Messages in this thread | | | Date | Sat, 2 Jan 2016 10:39:48 +0000 | From | Russell King - ARM Linux <> | Subject | Re: [Question about DMA] Consistent memory? |
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On Thu, Dec 31, 2015 at 04:50:54PM +0900, Masahiro Yamada wrote: > Hi. > > I am new to the Linux DMA APIs. > > First, I started by reading Documentation/DMA-API.txt, > but I am confused with the term "consistent memory".
Just read "coherent memory" instead - the documentation confusingly uses the two terms to refer to the same thing. I think there was a patch a while back to replace "consistent" with "coherent" in this document, though I'm not sure what happened to it.
I think you have answers to your other points by others in this thread.
Thanks.
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