arm64: Enable SVE in userspace
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Authored by andrew on Jan 4 2024, 12:33 PM.

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Subscribers

emaste

imp

Details

Reviewers

kib
markj
manu

Group Reviewers

arm64

Summary

Report when SVE is present and allow it to be used by calling
sve_restore_state on an SVE exception from userspace.

Diff Detail

Repository

rG FreeBSD src repository

Lint

Lint Skipped

Unit

Tests Skipped

Build Status

Buildable 55240
Build 52129: arc lint + arc unit

Event Timeline

andrew created this revision.Jan 4 2024, 12:33 PM

Herald added a reviewer: manu. · View Herald TranscriptJan 4 2024, 12:33 PM

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

andrew requested review of this revision.Jan 4 2024, 12:33 PM

Harbormaster completed remote builds in B55240: Diff 132257.Jan 4 2024, 12:33 PM

andrew added a parent revision: D43309: arm64: Support SVE in ptrace and core dumps.Jan 4 2024, 12:33 PM

andrew added a child revision: D43311: arm64: Add arm64 SVE tests.

Do we need to add something to the AT_HWCAP2 vector as well? Or is that stuff all SVE2 only?

Revision Contents
Changeset List

Path

Size

sys/

arm64/

identcpu.c

5 lines

trap.c

3 lines

Diff 132257

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sys/arm64/arm64/identcpu.c