arm64: Reuse aps_started to simplify SMP boot
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Authored by andrew on May 15 2025, 5:10 PM.

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manu

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arm64

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rG602c858e000d: arm64: Reuse aps_started to simplify SMP boot

Summary

We need to know when all CPUs have booted. Rather than locking and
counting when starting CPUs we can count on the boot CPU to set
smp_started.

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rG FreeBSD src repository

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Event Timeline

andrew created this revision.May 15 2025, 5:10 PM

Herald added a reviewer: manu. · View Herald TranscriptMay 15 2025, 5:10 PM

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

andrew requested review of this revision.May 15 2025, 5:10 PM

Harbormaster completed remote builds in B64205: Diff 155526.May 15 2025, 5:10 PM

andrew added a parent revision: D50365: arm64: Split out the loop to wait for APs.May 15 2025, 5:10 PM

andrew added a child revision: D50367: amr64: Move CPU feature & errata setup earlier.

This revision was not accepted when it landed; it landed in state Needs Review.May 28 2025, 1:35 PM

Closed by commit rG602c858e000d: arm64: Reuse aps_started to simplify SMP boot (authored by andrew). · Explain Why

This revision was automatically updated to reflect the committed changes.

andrew added a commit: rG602c858e000d: arm64: Reuse aps_started to simplify SMP boot.

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sys/

arm64/

mp_machdep.c

29 lines

Diff 156176

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sys/arm64/arm64/mp_machdep.c

arm64: Reuse aps_started to simplify SMP bootClosedPublicActions