Implement bus_space_barrier() for ARM64
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Authored by mst_semihalf.com on Aug 18 2016, 11:28 AM.

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zbb
wma
• ian

Summary

Previously function generic_bs_barrier() was an empty stub. Add full system barrier dsb(sy).

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rS FreeBSD src repository - subversion

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mst_semihalf.com updated this revision to Diff 19449.Aug 18 2016, 11:28 AM

mst_semihalf.com retitled this revision from to Implement bus_space_barrier() for ARM64.

mst_semihalf.com updated this object.

mst_semihalf.com edited the test plan for this revision. (Show Details)

mst_semihalf.com added reviewers: wma, • ian.

mst_semihalf.com set the repository for this revision to rS FreeBSD src repository - subversion.

mst_semihalf.com added subscribers: arm64, ARM.

Herald added subscribers: emaste, andrew, imp. · View Herald TranscriptAug 18 2016, 11:28 AM

mst_semihalf.com removed a subscriber: ARM.Aug 18 2016, 11:32 AM

mst_semihalf.com added a reviewer: zbb.Aug 29 2016, 12:39 PM

wma accepted this revision.Sep 5 2016, 6:19 AM

wma edited edge metadata.

This revision is now accepted and ready to land.Sep 5 2016, 6:19 AM

Why is this needed? We already use the strongest mapping for device memory.

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sys/

arm64/

bus_machdep.c

3 lines

Diff 19449

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sys/arm64/arm64/bus_machdep.c

Implement bus_space_barrier() for ARM64ClosedPublicActions