linux-kernel - [PATCH v8 0/2] Add ThunderX2 SoC Performance Monitoring Unit driver

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Message-ID: <20181122030354.13570-1-ganapatrao.kulkarni@cavium.com>
Date:   Thu, 22 Nov 2018 03:04:27 +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 v8 0/2] Add ThunderX2 SoC Performance Monitoring Unit driver

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).

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 | 106 ++++
 drivers/perf/Kconfig                 |   9 +
 drivers/perf/Makefile                |   1 +
 drivers/perf/thunderx2_pmu.c         | 869 +++++++++++++++++++++++++++
 include/linux/cpuhotplug.h           |   1 +
 5 files changed, 986 insertions(+)
 create mode 100644 Documentation/perf/thunderx2-pmu.txt
 create mode 100644 drivers/perf/thunderx2_pmu.c

-- 
2.18.0