[+cc Alex, Suravee, Thomas, Felix, Christian]
On Mon, Apr 08, 2019 at 01:37:25PM +0300, Nikolai Kostrigin wrote:
> ATS is broken on this hardware (at least for Stoney Ridge
> based laptop) and causes IOMMU stalls and
> system failure. Disable ATS on these devices to make them
> usable again with I
On Mon, Apr 08, 2019 at 01:37:25PM +0300, Nikolai Kostrigin wrote:
> ATS is broken on this hardware (at least for Stoney Ridge
> based laptop) and causes IOMMU stalls and
> system failure. Disable ATS on these devices to make them
> usable again with IOMMU enabled
> Thanks to Joerg Roedel for help
On Wed, Apr 10, 2019 at 03:59:57PM +, Deucher, Alexander wrote:
> > + a few AMD people
> >
> > Seeing this bug makes it more clear. I don't think this is a problem with
> > the
> > GPU. I think it's a problem with either the sbios or iommu. I think the
> > original
> > quirk added for sto
On Wed, Apr 10, 2019 at 11:03:20AM +0300, Nikolai Kostrigin wrote:
> 10.04.2019 10:26, Nikolai Kostrigin пишет:
> > Hello!
> >
> > 10.04.2019 00:59, Bjorn Helgaas пишет:
> >> [+cc Alex]
> >>
> >> This claims to be a resend, but I don't see a previous posting.
> > For some reason, unknown to me, my
com) ; Koenig, Christian
> (christian.koe...@amd.com)
> Cc: linux-...@vger.kernel.org; linux-kernel@vger.kernel.org;
> jroe...@suse.de
> Subject: RE: [PATCH RESEND 1/1] PCI: Add ATS-disable quirk for AMD Radeon
> R7 GPUs
>
> > -Original Message-
> > From: Bjorn Helgaas
&g
> -Original Message-
> From: Bjorn Helgaas
> Sent: Tuesday, April 9, 2019 5:59 PM
> To: Nikolai Kostrigin
> Cc: linux-...@vger.kernel.org; linux-kernel@vger.kernel.org;
> jroe...@suse.de; Deucher, Alexander
> Subject: Re: [PATCH RESEND 1/1] PCI: Add ATS-disable quir
[+cc] linux-kernel@, linux-pci@
10.04.2019 10:26, Nikolai Kostrigin пишет:
> Hello!
>
> 10.04.2019 00:59, Bjorn Helgaas пишет:
>> [+cc Alex]
>>
>> This claims to be a resend, but I don't see a previous posting.
> For some reason, unknown to me, my previous letter didn't appear
> neither in linux-k
[+cc Alex]
This claims to be a resend, but I don't see a previous posting.
There *was* discussion when the quirk was added two years ago for a
different device. As part of that, Alex thought only that device
would be affected and ATS was validated on other GPUs:
https://lore.kernel.org/lkml/
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