[+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
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
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
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
[+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:
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.
https://bugzilla.kernel.org/show_bug.cgi?id=194521
Signed-off-by:
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