Differential D7397

Apply the fix from r232612 to fixed function counters.
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Authored by jhb on Aug 2 2016, 6:25 PM.

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emaste
gnn

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rS303720: Apply the fix from r232612 to fixed function counters.

Summary

Apply the fix from r232612 to fixed function counters.

Test Plan

I ran several pmcstat counting invocations on a testbox (fox2 in the netperf lab) but was never able to reproduce the type of brokenness that was fixed by r232612. I didn't see any regressions and this is correct by my reading of SDM, I just didn't see any upper bits set in the PMC MSR during testing.

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Repository

rS FreeBSD src repository - subversion

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Event Timeline

jhb updated this revision to Diff 18962.Aug 2 2016, 6:25 PM

jhb retitled this revision from to Apply the fix from r232612 to fixed function counters..

jhb updated this object.

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

jhb added reviewers: emaste, gnn.

Herald added a subscriber: imp. · View Herald TranscriptAug 2 2016, 6:25 PM

Handy link to mentioned commit: rS232612

This seems fine to me.

This revision is now accepted and ready to land.Aug 2 2016, 7:02 PM

Closed by commit rS303720: Apply the fix from r232612 to fixed function counters. (authored by jhb). · Explain WhyAug 3 2016, 4:52 PM

This revision was automatically updated to reflect the committed changes.

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head/

sys/

dev/

hwpmc/

2 lines

Diff 19004

head/sys/dev/hwpmc/hwpmc_core.c

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