arm64: Support a shared release for spin-table
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Authored by andrew on Fri, May 3, 4:24 PM.

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Reviewers

jhibbits
kevans
manu

Group Reviewers

arm64

Commits

rGc78ebc69c2aa: arm64: Support a shared release for spin-table

Summary

When releasing multiple CPUs that share a release address we need them
to wait for their turn to boot. Add a mechanism to do this by booting
them until they enable the TLB before waiting their turn to enter
init_secondary.

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Repository

rG FreeBSD src repository

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Tests Not Applicable

Event Timeline

andrew created this revision.Fri, May 3, 4:24 PM

Herald added a reviewer: manu. · View Herald TranscriptFri, May 3, 4:24 PM

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

andrew requested review of this revision.Fri, May 3, 4:24 PM

Harbormaster completed remote builds in B57575: Diff 138115.Fri, May 3, 4:24 PM

andrew added a parent revision: D45081: am64: Allow cpu.h to be included from assembly.Fri, May 3, 4:24 PM

andrew added a child revision: D45083: arm64: Flush the spintable release address.

jhibbits accepted this revision.Fri, May 3, 8:48 PM

This revision is now accepted and ready to land.Fri, May 3, 8:48 PM

kevans accepted this revision as: kevans.Sat, May 4, 5:30 AM

kevans added inline comments.

sys/arm64/arm64/locore.S
219

Closed by commit rGc78ebc69c2aa: arm64: Support a shared release for spin-table (authored by andrew). · Explain WhyFri, May 10, 9:31 AM

This revision was automatically updated to reflect the committed changes.

andrew added a commit: rGc78ebc69c2aa: arm64: Support a shared release for spin-table.

Revision Contents
Changeset List

Path

Size

sys/

arm64/

locore.S

55 lines

mp_machdep.c

21 lines

Diff 138341

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sys/arm64/arm64/locore.S