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arm: Support the optional limitation on dsb/dmb
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Authored by andrew on Nov 11 2025, 5:28 PM.
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ARM
Summary

The dsb and dmb instructions support an optional limitation on what
shareability domains an memory operations they target. Historically
FreeBSD/arm didn't have a way to specify the limit.

Use a variadic macro to take the optional limitation and pass it
through to the instruction.

Sponsored by: Arm Ltd

Diff Detail

Repository
rG FreeBSD src repository
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Lint Skipped
Unit
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Build Status
Buildable 68549
Build 65432: arc lint + arc unit