linux-kernel - [PATCH v7 0/2] drivers: perf: Add Marvell CN10K LLC-TAD pmu driver

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Message-ID: <20211115043506.6679-1-bbudiredla@marvell.com>
Date:   Mon, 15 Nov 2021 10:05:04 +0530
From:   Bhaskara Budiredla <bbudiredla@...vell.com>
To:     <will@...nel.org>, <mark.rutland@....com>, <robh+dt@...nel.org>,
        <bbhushan2@...vell.com>, <sgoutham@...vell.com>
CC:     <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        Bhaskara Budiredla <bbudiredla@...vell.com>
Subject: [PATCH v7 0/2] drivers: perf: Add Marvell CN10K LLC-TAD pmu driver

This series introduces performance monitor driver to Last-level-cache
tag-and-data (LLC-TAD) PMU which is an integral part of Marvell CN10K SoCs.
The configuration and functionality of the TAD PMU is covered in patch 1.
The device tree bindings are dealt in patch 2.

v7:
 - use braces around a multi-line conditional statement (Will Deacon)
 - remove mask doesn't do anything (Will Deacon)
 - restrict compile test dependency to aarch64

v6:
 - add COMPILE_TEST dependency (Bharat Bhushan)
 - replace sprintf with sysfs_emit (Bharat Bhushan)

v5:
 - add prefix, type, description for vendor specific properties
   in DT bindings (Rob Herring)

v4:
 - rebased on kernel v5.14-rc7
 - eliminate yamllint errors (Rob Herring) 

v3:
 - rebased on kernel v5.14-rc5
 - disable sampling events via PERF_PMU_CAP_NO_INTERRUPT (Will Deacon)
 - convert tad pmu bindings to schema (Will Deacon)
 - replace tighter semantics with *_relaxed() accesses (Will Deacon)
 - use PMU_EVENT_ATTR_ID generic macro (Will Deacon)
 - allow cleanup of allocations through devm_kcalloc() (Will Deacon)

v2:
 - rebased on kernel v5.13-rc3

Bhaskara Budiredla (2):
  drivers: perf: Add LLC-TAD perf counter support
  dt-bindings: perf: Add YAML schemas for Marvell CN10K LLC-TAD pmu
    bindings

 .../bindings/perf/marvell-cn10k-tad.yaml      |  63 +++
 drivers/perf/Kconfig                          |   7 +
 drivers/perf/Makefile                         |   1 +
 drivers/perf/marvell_cn10k_tad_pmu.c          | 429 ++++++++++++++++++
 4 files changed, 500 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/perf/marvell-cn10k-tad.yaml
 create mode 100644 drivers/perf/marvell_cn10k_tad_pmu.c

-- 
2.17.1