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

From: [email-masked] (Will Deacon)
Date: Tue, 3 Jun 2014 14:28:42 +0100

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 <[email-masked]>
> ---
> 
> 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