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SubjectRe: [Intel-gfx] [PATCH v3 0/6] Convert the intel iommu driver to the dma-iommu api
Hi Logan,

On 2020/9/19 4:47, Logan Gunthorpe wrote:
> Hi Lu,
> On 2020-09-11 9:21 p.m., Lu Baolu wrote:
>> Tom Murphy has almost done all the work. His latest patch series was
>> posted here.
>> Thanks a lot!
>> This series is a follow-up with below changes:
>> 1. Add a quirk for the i915 driver issue described in Tom's cover
>> letter.
>> 2. Fix several bugs in patch "iommu: Allow the dma-iommu api to use
>> bounce buffers" to make the bounce buffer work for untrusted devices.
>> 3. Several cleanups in iommu/vt-d driver after the conversion.
> I'm trying to test this on an old Sandy Bridge, but found that I get
> spammed with warnings on boot. I've put a sample of a few of them below.
> They all seem to be related to ioat.
> I had the same issue with Tom's v2 but never saw this on his v1.

Have you verified whether this could be reproduced with the lasted
upstream kernel (without this patch series)?

Best regards,

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