libpmc: add APERF/MPERF support for AMD CPUs
AbandonedPublic
Actions

Authored by anascime_amd.com on Aug 4 2026, 6:39 PM.

Tags

None

Referenced Files

	Unknown Object (File)
	Tue, Oct 13, 10:59 AM

	Unknown Object (File)
	Sun, Sep 27, 10:20 AM

	Unknown Object (File)
	Sun, Sep 20, 2:06 AM

	Unknown Object (File)
	Sep 8 2026, 12:11 AM

	Unknown Object (File)
	Sep 6 2026, 3:23 PM

	Unknown Object (File)
	Sep 6 2026, 2:45 PM

	Unknown Object (File)
	Sep 3 2026, 10:13 AM

	Unknown Object (File)
	Sep 2 2026, 7:15 AM

View All 39 Files

Subscribers

imp

Details

Reviewers

ali_mashtizadeh.com

Summary

Extend libpmc(3) to expose the AMD APERF/MPERF counters added to
hwpmc(4) in the companion kernel change, so userland consumers
(pmcstat(8), etc.) can allocate and read these events by name.

Signed-off-by: Anderson Nascimento <anascime@amd.com>
Sponsored by: AMD

Diff Detail

Repository

rG FreeBSD src repository

Lint

Lint Skipped

Unit

Tests Skipped

Build Status

Buildable 75364
Build 72247: arc lint + arc unit

Event Timeline

anascime_amd.com created this revision.Aug 4 2026, 6:39 PM

Herald added a reviewer: ali_mashtizadeh.com. · View Herald TranscriptAug 4 2026, 6:39 PM

Herald added a subscriber: imp. · View Herald Transcript

anascime_amd.com requested review of this revision.Aug 4 2026, 6:39 PM

Harbormaster completed remote builds in B75364: Diff 183395.Aug 4 2026, 6:39 PM

anascime_amd.com added a parent revision: D58647: hwpmc: add MPERF/APERF MSR support for AMD/Intel CPUs.Aug 4 2026, 6:49 PM

anascime_amd.com added a child revision: D58649: libpmc: Add pmc.perf.3 manpage.

anascime_amd.com abandoned this revision.Aug 4 2026, 9:18 PM

Revision Contents
Changeset List

Path

Size

lib/

libpmc/

libpmc.c

31 lines

Diff 183395

View Options

libpmc: add APERF/MPERF support for AMD CPUsAbandonedPublicActions