[Intel-gfx] iommu/vt-d: Use per-cpu IOVA caching, suspend-to-ram causes machine hang

[Marius Vlad]

Yes, that does it. Thanks.

On Mon, Jun 06, 2016 at 12:02:30AM +0300, Adam Morrison wrote:
> > Hi Omer the following commit introduced a regression when doing
> > suspend-to-ram. The machine never wakes up. We have more than
> > a few machines that hang: SNB-i7-2620m, IVB-3370, HSW-4470r, BDW-5600u,
> > BDW-525u.
> 
> Jan Niehusmann posted a patch that fixes a similar problem:
> 
>     http://www.mail-archive.com/linux-kernel@vger.kernel.org/msg1158159.html
> 
> Can you please try it and see if it does the trick for you?
> 
> Thanks,
> Adam
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