atomic: Add atomic_cmpset_masked to powerpc and use it
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Authored by jhibbits on Nov 14 2019, 4:35 AM.

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rS354723: atomic: Add atomic_cmpset_masked to powerpc and use it

Summary

This is a more optimal way of doing atomic_compset_masked() than the
fallback in sys/_atomic_subword.h. There's also an override for
_atomic_fcmpset_masked_word(), which may or may not be necessary, and is
unused for powerpc.

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rS FreeBSD src repository - subversion

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Event Timeline

jhibbits created this revision.Nov 14 2019, 4:35 AM

Herald added a subscriber: bdragon. · View Herald TranscriptNov 14 2019, 4:35 AM

Harbormaster completed remote builds in B27508: Diff 64305.Nov 14 2019, 4:35 AM

_atomic_subword.h changes LGTM. =)

This revision is now accepted and ready to land.Nov 14 2019, 5:01 AM

kib accepted this revision.Nov 14 2019, 7:28 PM

Closed by commit rS354723: atomic: Add atomic_cmpset_masked to powerpc and use it (authored by jhibbits). · Explain WhyNov 15 2019, 4:33 AM

This revision was automatically updated to reflect the committed changes.

jhibbits added a commit: rS354723: atomic: Add atomic_cmpset_masked to powerpc and use it.

Herald added a subscriber: imp. · View Herald TranscriptNov 15 2019, 4:33 AM

Revision Contents
Changeset List

Path

Size

head/

sys/

powerpc/

include/

atomic.h

32 lines

sys/

_atomic_subword.h

4 lines

Diff 64359

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head/sys/powerpc/include/atomic.h