linux-kernel - [PATCH v9 0/2] Add ThunderX2 SoC Performance Monitoring Unit driver

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Message-ID: <20181205105853.15154-1-ganapatrao.kulkarni@cavium.com>
Date:   Wed, 5 Dec 2018 10:59:24 +0000
From:   "Kulkarni, Ganapatrao" <Ganapatrao.Kulkarni@...ium.com>
To:     "linux-doc@...r.kernel.org" <linux-doc@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>
CC:     "Will.Deacon@....com" <Will.Deacon@....com>,
        "mark.rutland@....com" <mark.rutland@....com>,
        "suzuki.poulose@....com" <suzuki.poulose@....com>,
        "rdunlap@...radead.org" <rdunlap@...radead.org>,
        "Nair, Jayachandran" <Jayachandran.Nair@...ium.com>,
        "Richter, Robert" <Robert.Richter@...ium.com>,
        "Lomovtsev, Vadim" <Vadim.Lomovtsev@...ium.com>,
        Jan Glauber <Jan.Glauber@...ium.com>,
        "gklkml16@...il.com" <gklkml16@...il.com>
Subject: [PATCH v9 0/2] Add ThunderX2 SoC Performance Monitoring Unit driver

From: Ganapatrao Kulkarni <ganapatrao.kulkarni@...vell.com>

This patchset adds PMU driver for Cavium's ThunderX2 SoC UNCORE devices.
The SoC has PMU support in L3 cache controller (L3C) and in the
DDR4 Memory Controller (DMC).

v9:
	Updated with comments [5].

[5] https://lkml.org/lkml/2018/11/22/517

v8:
	Updated with comments [4].

[4] https://lkml.org/lkml/2018/10/25/215

v7:
	Incorporated review comments [3].
	Modified driver as loadable module.
	Updated Documentation with Event description.
	Removed per-channel(no SMC calls) sampling implementation(
	Since DMC and L3C channels are interleave, we have decided to
	sample channel zero and prorate it to account for a Device).

[3] https://patchwork.kernel.org/patch/10479203/

v6:
	Rebased to 4.18-rc1
	Updated with comments from John Garry[3]

[3] https://lkml.org/lkml/2018/5/17/408

v5:
	Incorporated review comments from Mark Rutland[2]
v4:
	Incorporated review comments from Mark Rutland[1]

[1] https://www.spinics.net/lists/arm-kernel/msg588563.html
[2] https://lkml.org/lkml/2018/4/26/376

v3:
	Fixed warning reported by kbuild robot

v2:
	Rebased to 4.12-rc1
	Removed Arch VULCAN dependency.
	Update SMC call parameters as per latest firmware.

v1:
	Initial patch

Ganapatrao Kulkarni (2):
  perf, uncore: Adding documentation for ThunderX2 pmu uncore driver
  ThunderX2, perf : Add Cavium ThunderX2 SoC UNCORE PMU driver

 Documentation/perf/thunderx2-pmu.txt |  93 +++
 drivers/perf/Kconfig                 |   9 +
 drivers/perf/Makefile                |   1 +
 drivers/perf/thunderx2_pmu.c         | 861 +++++++++++++++++++++++++++
 include/linux/cpuhotplug.h           |   1 +
 5 files changed, 965 insertions(+)
 create mode 100644 Documentation/perf/thunderx2-pmu.txt
 create mode 100644 drivers/perf/thunderx2_pmu.c

-- 
2.18.0