[PATCHv2] arm64: Add atomic pool for non-coherent and CMA allocaitons.

Hi Laura,

On Mon, Jun 02, 2014 at 09:03:52PM +0100, Laura Abbott wrote:

Neither CMA nor noncoherent allocations support atomic allocations.
Add a dedicated atomic pool to support this.

Change-Id: I46c8fdffe5e0687403d42b37643137c8cf344259
Signed-off-by: Laura Abbott <redacted>
---

v2: Various bug fixes pointed out by David and Ritesh (CMA dependency, swapping
coherent, noncoherent). I'm still not sure how to address the devicetree
suggestion by Will [1][2]. I added the devicetree mailing list this time around
to get more input on this.

[1] http://lists.infradead.org/pipermail/linux-arm-kernel/2014-April/249180.html
[2] http://lists.infradead.org/pipermail/linux-arm-kernel/2014-April/249528.html

Perhaps that can be done later then, since from what you're saying, we need
the command-line option either way? Have you looked at how this fits in with
the iommu-helper work from Ritesh? We could put the parameter parsing in
there too.

Will