arm64/smmu: Start handling errata
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Authored by andrew on Mon, Sep 7, 4:12 PM.

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imp

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manu

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arm64

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rG6dca6e2aa89d: arm64/smmu: Start handling errata

Summary

Handle the Arm MMU-600 erratum 1076982 where when we poll for a sync
command completion we can't use the wait-for-event instruction.

This is in preparation for later adding support for polling for sync
command completion and is not an issue on stable branches.

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rG FreeBSD src repository

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Event Timeline

andrew created this revision.Mon, Sep 7, 4:12 PM

Herald added a reviewer: manu. · View Herald TranscriptMon, Sep 7, 4:12 PM

Herald added subscribers: emaste, imp. · View Herald Transcript

andrew requested review of this revision.Mon, Sep 7, 4:12 PM

Harbormaster completed remote builds in B76633: Diff 186137.Mon, Sep 7, 4:12 PM

andrew added a parent revision: D59485: arm64/smmu: Move smmu later.Mon, Sep 7, 4:12 PM

andrew added a child revision: D59487: arm64/smmu: Split out waiting for sync completion.

This revision was not accepted when it landed; it landed in state Needs Review.Mon, Sep 21, 3:27 PM

Closed by commit rG6dca6e2aa89d: arm64/smmu: Start handling errata (authored by andrew). · Explain Why

This revision was automatically updated to reflect the committed changes.

andrew added a commit: rG6dca6e2aa89d: arm64/smmu: Start handling errata.

Revision Contents
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Path

Size

sys/

arm64/

iommu/

smmu.c

28 lines

smmureg.h

16 lines

Diff 187335

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sys/arm64/iommu/smmu.c