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Differential D45530

arm64: Fix the gicv3 check in locore.S
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Authored by andrew on Jun 7 2024, 2:27 PM.
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Details

Reviewers
manu
Group Reviewers
arm64
Commits
rGaf603143e873: arm64: Fix the gicv3 check in locore.S
rG94865825c014: arm64: Fix the gicv3 check in locore.S
rG57ef7935eb11: arm64: Fix the gicv3 check in locore.S
Summary

In locore.S we need to configure access to the GICv3. To check if it's
available we read the id_aa64pfr0_el1 register, however we then only
check if a GICv3.0 or 4.0 is present. If the system has a GICv4.1 this
check would fail.

Move to checking if the GICV3+ is not absent so this will still work if
the field is updated again.

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Repository
rG FreeBSD src repository
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Build Status
Buildable 58103
Build 54991: arc lint + arc unit

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PathSize
sys/
arm64/
arm64/
5 lines

Diff 139625

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sys/arm64/arm64/locore.S

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