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Groups > linux.kernel > #1666906
| From | Samuel Sieb <samuel@sieb.net> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH v2] PCI: Add ATS-disable quirk for AMD Stoney GPUs |
| Date | 2017-06-15 19:10 +0200 |
| Message-ID | <tSGrn-5cj-9@gated-at.bofh.it> (permalink) |
| References | <ttDdo-8mD-27@gated-at.bofh.it> <tSDDb-3sa-1@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On 06/15/2017 07:04 AM, Joerg Roedel wrote:
> Hi Bjorn,
>
> On Fri, Apr 07, 2017 at 04:32:18PM +0200, Joerg Roedel wrote:
>> From: Joerg Roedel <jroedel@suse.de>
>>
>> ATS is broken on this hardware and causes IOMMU stalls and
>> system failure. Disable ATS on these devices to make them
>> usable again with IOMMU enabled.
>>
>> Note that the commit in the Fixes-tag is not buggy, it
>> just uncovers the problem in the hardware by increasing
>> the ATS-flush rate.
>>
>> Fixes: b1516a14657a ('iommu/amd: Implement flush queue')
>> Signed-off-by: Joerg Roedel <jroedel@suse.de>
>> ---
>> drivers/pci/quirks.c | 19 +++++++++++++++++++
>> 1 file changed, 19 insertions(+)
>
> Any more objections on this patch? Please let me know if you want to
> have something changed.
The other patch seems to fix this issue without disabling ATS. Isn't
that better?
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Re: [PATCH v2] PCI: Add ATS-disable quirk for AMD Stoney GPUs Joerg Roedel <jroedel@suse.de> - 2017-06-15 16:10 +0200
Re: [PATCH v2] PCI: Add ATS-disable quirk for AMD Stoney GPUs Samuel Sieb <samuel@sieb.net> - 2017-06-15 19:10 +0200
RE: [PATCH v2] PCI: Add ATS-disable quirk for AMD Stoney GPUs "Deucher, Alexander" <Alexander.Deucher@amd.com> - 2017-06-15 20:20 +0200
Re: [PATCH v2] PCI: Add ATS-disable quirk for AMD Stoney GPUs Bjorn Helgaas <helgaas@kernel.org> - 2017-06-15 21:20 +0200
Re: [PATCH v2] PCI: Add ATS-disable quirk for AMD Stoney GPUs Joerg Roedel <jroedel@suse.de> - 2017-06-16 18:30 +0200
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