Re: CMA region absolutely for a particular device?

From	Shawn Guo <shawnguo@kernel.org>
Newsgroups	linux.kernel
Subject	Re: CMA region absolutely for a particular device?
Date	2016-06-08 13:10 +0200
Message-ID	<rHJwZ-7QB-5@gated-at.bofh.it> (permalink)
References	<rHoVA-37S-45@gated-at.bofh.it> <rHrA6-4yQ-29@gated-at.bofh.it>
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On Tue, Jun 7, 2016 at 11:55 PM, Laura Abbott <labbott@redhat.com> wrote:
> You could try backporting the ZONE_CMA patches
> http://article.gmane.org/gmane.linux.kernel.mm/152016 . The primary problem
> there was CMA utilization but there was some discussion about migration
> success as well http://article.gmane.org/gmane.linux.kernel/2228789

Thanks much for the pointers, Laura.

> If that doesn't work for you, I think the 'reusable' property can be dropped
> and it should just become a DMA coherent pool. I haven't tested this though.

I will see if I can test it out.

Shawn

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CMA region absolutely for a particular device? Shawn Guo <shawnguo@kernel.org> - 2016-06-07 15:10 +0200
  Re: CMA region absolutely for a particular device? Laura Abbott <labbott@redhat.com> - 2016-06-07 18:00 +0200
    Re: CMA region absolutely for a particular device? Shawn Guo <shawnguo@kernel.org> - 2016-06-08 13:10 +0200

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