linux-kernel - [tip:perf/core] perf/x86/rapl: Enable Apollo Lake RAPL support

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Date:   Sat, 10 Sep 2016 05:42:00 -0700
From:   tip-bot for Harry Pan <tipbot@...or.com>
To:     linux-tip-commits@...r.kernel.org
Cc:     alexander.shishkin@...ux.intel.com, linux-kernel@...r.kernel.org,
        tglx@...utronix.de, eranian@...gle.com,
        torvalds@...ux-foundation.org, mingo@...nel.org,
        harry.pan@...el.com, hpa@...or.com, vincent.weaver@...ne.edu,
        acme@...hat.com, peterz@...radead.org, jolsa@...hat.com
Subject: [tip:perf/core] perf/x86/rapl: Enable Apollo Lake RAPL support

Commit-ID:  2668c6195685f4b6f281767d10b4f4f2e32c2305
Gitweb:     http://git.kernel.org/tip/2668c6195685f4b6f281767d10b4f4f2e32c2305
Author:     Harry Pan <harry.pan@...el.com>
AuthorDate: Thu, 8 Sep 2016 17:08:57 +0800
Committer:  Ingo Molnar <mingo@...nel.org>
CommitDate: Sat, 10 Sep 2016 11:18:52 +0200

perf/x86/rapl: Enable Apollo Lake RAPL support

This patch enables RAPL counters (energy consumption counters)
support for Intel Apollo Lake (Goldmont) processors (Model 92):

RAPL of Goldmont, unlikes ESU increment of Silvermont/Airmont,
it likes the Haswell microarchitecture in 1/2^ESU joules and
supports power domains in PP0/PP1/PKG/RAM.

ESU and power domains refer to Intel Software Developers' Manual,
Vol. 3C, Order No. 325384, Table 35-12.

Usage example:

  $ perf list
  $ perf stat -a -e power/energy-cores/,power/energy-pkg/ sleep 10

Signed-off-by: Harry Pan <harry.pan@...el.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@...radead.org>
Cc: Alexander Shishkin <alexander.shishkin@...ux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@...hat.com>
Cc: Jiri Olsa <jolsa@...hat.com>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Stephane Eranian <eranian@...gle.com>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: Vince Weaver <vincent.weaver@...ne.edu>
Cc: bp@...en8.de
Cc: gs0622@...il.com
Cc: hpa@...or.com
Cc: srinivas.pandruvada@...ux.intel.com
Link: http://lkml.kernel.org/r/1473325738-730-1-git-send-email-harry.pan@intel.com
Signed-off-by: Ingo Molnar <mingo@...nel.org>
---
 arch/x86/events/intel/rapl.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/x86/events/intel/rapl.c b/arch/x86/events/intel/rapl.c
index 62bebcc..b0f0e83 100644
--- a/arch/x86/events/intel/rapl.c
+++ b/arch/x86/events/intel/rapl.c
@@ -767,6 +767,8 @@ static const struct x86_cpu_id rapl_cpu_match[] __initconst = {
 	X86_RAPL_MODEL_MATCH(INTEL_FAM6_SKYLAKE_MOBILE,  skl_rapl_init),
 	X86_RAPL_MODEL_MATCH(INTEL_FAM6_SKYLAKE_DESKTOP, skl_rapl_init),
 	X86_RAPL_MODEL_MATCH(INTEL_FAM6_SKYLAKE_X,	 hsx_rapl_init),
+
+	X86_RAPL_MODEL_MATCH(INTEL_FAM6_ATOM_GOLDMONT, hsw_rapl_init),
 	{},
 };