Differential D54252

arm64: Add an initial GICv5 IWB driver
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Authored by andrew on Dec 16 2025, 12:09 PM.

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Reviewers

manu

Group Reviewers

arm64

Commits

rGcbef29bde7ce: arm64: Add an initial GICv5 IWB driver

Summary

Add a driver to support the GICv5 interrupt wire bridge (IWB). The IWB
translates the change in state of an input wire and sends a MSI to
the interrupt translation service (ITS) to be translated to an LPI.

Unlike other MSI sources each wire has a fixed Event ID value it will
write in the MSI data.

Diff Detail

Repository

rG FreeBSD src repository

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Unit

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Build Status

Buildable 73103
Build 69986: arc lint + arc unit

Event Timeline

andrew created this revision.Dec 16 2025, 12:09 PM

Herald added a reviewer: manu. · View Herald TranscriptDec 16 2025, 12:09 PM

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

andrew requested review of this revision.Dec 16 2025, 12:09 PM

Harbormaster completed remote builds in B69296: Diff 168185.Dec 16 2025, 12:09 PM

andrew added a parent revision: D54251: arm64: Add an initial GICv5 ITS driver.Dec 16 2025, 12:09 PM

Remove the unneeded bind handler
Cleanup better on attach failure

Harbormaster completed remote builds in B73103: Diff 177838.May 14 2026, 4:51 PM

This revision was not accepted when it landed; it landed in state Needs Review.Thu, Jun 18, 2:58 PM

Closed by commit rGcbef29bde7ce: arm64: Add an initial GICv5 IWB driver (authored by andrew). · Explain Why

This revision was automatically updated to reflect the committed changes.

andrew added a commit: rGcbef29bde7ce: arm64: Add an initial GICv5 IWB driver.

Revision Contents
Changeset List

Path

Size

sys/

arm64/

gicv5_iwb.c

559 lines

conf/

files.arm64

1 line

Diff 177838

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sys/arm64/arm64/gicv5_iwb.c