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From: Stephane Eranian <eranian@google.com>
To: linux-kernel@vger.kernel.org
Cc: peterz@infradead.org, mingo@elte.hu, irogers@google.com,
	kim.phillips@amd.com, jolsa@redhat.com
Subject: [PATCH 0/3] perf/x86/rapl: Enable RAPL for AMD Fam17h
Date: Fri, 15 May 2020 14:57:30 -0700	[thread overview]
Message-ID: <20200515215733.20647-1-eranian@google.com> (raw)

This patch series adds support for AMD Fam17h RAPL counters. As per
AMD PPR, Fam17h support Package RAPL counters to monitor power usage.
The RAPL counter operates as with Intel RAPL. As such, it is beneficial
to share the code.

The series first moves the rapl.c file to common perf_events x86 and then
adds the support.
From the user's point of view, the interface is identical with
/sys/devices/power. The energy-pkg event is the only one supported.

$ perf stat -a --per-socket -I 1000 -e power/energy-pkg/

Signed-off-by: Stephane Eranian <eranian@google.com>

Stephane Eranian (3):
  perf/x86/rapl: move RAPL support to common x86 code
  perf/x86/rapl: refactor code for Intel/AMD sharing
  perf/x86/rapl: add AMD Fam17h RAPL support

 arch/x86/events/Kconfig            |  8 ++---
 arch/x86/events/Makefile           |  1 +
 arch/x86/events/intel/Makefile     |  2 --
 arch/x86/events/probe.c            |  4 +++
 arch/x86/events/{intel => }/rapl.c | 55 +++++++++++++++++++++++++-----
 arch/x86/include/asm/msr-index.h   |  3 ++
 6 files changed, 58 insertions(+), 15 deletions(-)
 rename arch/x86/events/{intel => }/rapl.c (92%)

-- 
2.26.2.761.g0e0b3e54be-goog


             reply	other threads:[~2020-05-15 21:58 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-15 21:57 Stephane Eranian [this message]
2020-05-15 21:57 ` [PATCH 1/3] perf/x86/rapl: move RAPL support to common x86 code Stephane Eranian
2020-05-18  9:08   ` Peter Zijlstra
2020-05-15 21:57 ` [PATCH 2/3] perf/x86/rapl: refactor code for Intel/AMD sharing Stephane Eranian
2020-05-18  9:23   ` Peter Zijlstra
2020-05-15 21:57 ` [PATCH 3/3] perf/x86/rapl: add AMD Fam17h RAPL support Stephane Eranian
2020-05-18  9:34   ` Peter Zijlstra
2020-05-18 20:16     ` Stephane Eranian
2020-05-20  8:34       ` Stephane Eranian
2020-05-16 16:56 ` [PATCH 0/3] perf/x86/rapl: Enable RAPL for AMD Fam17h Alexander Monakov
2020-05-18  8:50 ` Jiri Olsa

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