[PATCH] ARM: dma-mapping: support non-consistent DMA attribute

Jasper St. Pierre jasper at endlessm.com
Wed Feb 25 09:27:54 PST 2015


On Wed, Feb 25, 2015 at 9:25 AM, Russell King - ARM Linux
<linux at arm.linux.org.uk> wrote:
> It seems to be a reasonable thing to do.
>
> However, what I would raise is whether you /really/ want to be using
> CMA for this.

Our scanout hardware / display controller does not have an iommu, and
requires contiguous buffers.

> --
> FTTC broadband for 0.8mile line: currently at 10.5Mbps down 400kbps up
> according to speedtest.net.

-- 
  Jasper



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