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SubjectRe: [PATCH 3/4] iommu/vt-d: Clean up pasid quirk for pre-production devices
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Hi Chris,

On 07/07/2018 03:01 PM, Chris Wilson wrote:
> Quoting Lu Baolu (2018-05-04 06:08:18)
>> The pasid28 quirk is needed only for some pre-production devices.
>> Remove it to make the code concise.
> Every skylake mixing iommu and i915 is now inoperable on boot. Reads
> by the GPU from iommu map pages return zero, writes disappear into the
> void, no errors flagged.
>
> Please revert until the matter is resolved.

Yes. I also got reports about the i915 issue.

I will submit a revert patch as soon as possible.

I am sorry for the inconvenience.

Best regards,
Lu Baolu

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