Re: Interacting with coherent memory on external devices

From: Paul E. McKenney
Date: Tue Apr 21 2015 - 20:58:11 EST


On Wed, Apr 22, 2015 at 10:42:52AM +1000, Benjamin Herrenschmidt wrote:
> On Tue, 2015-04-21 at 18:49 -0500, Christoph Lameter wrote:
> > On Tue, 21 Apr 2015, Paul E. McKenney wrote:
> >
> > > Thoughts?
> >
> > Use DAX for memory instead of the other approaches? That way it is
> > explicitly clear what information is put on the CAPI device.
>
> Care to elaborate on what DAX is ?

I would like to know as well. My first attempt to Google got me nothing
but Star Trek. Is DAX the persistent-memory topic covered here?

https://lwn.net/Articles/591779/
https://lwn.net/Articles/610174/

Ben will correct me if I am wrong, but I do not believe that we are
looking for persistent memory in this case.

Thanx, Paul

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