linux-kernel - [PATCH v3 0/5] stm32-ddr-pmu driver creation

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Message-ID: <1566918464-23927-1-git-send-email-gerald.baeza@st.com>
Date:   Tue, 27 Aug 2019 15:08:12 +0000
From:   Gerald BAEZA <gerald.baeza@...com>
To:     "will@...nel.org" <will@...nel.org>,
        "mark.rutland@....com" <mark.rutland@....com>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "mcoquelin.stm32@...il.com" <mcoquelin.stm32@...il.com>,
        Alexandre TORGUE <alexandre.torgue@...com>,
        "corbet@....net" <corbet@....net>,
        "linux@...linux.org.uk" <linux@...linux.org.uk>,
        "olof@...om.net" <olof@...om.net>, "arnd@...db.de" <arnd@...db.de>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-stm32@...md-mailman.stormreply.com" 
        <linux-stm32@...md-mailman.stormreply.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-doc@...r.kernel.org" <linux-doc@...r.kernel.org>
CC:     Gerald BAEZA <gerald.baeza@...com>
Subject: [PATCH v3 0/5] stm32-ddr-pmu driver creation

The DDRPERFM is the DDR Performance Monitor embedded in STM32MP1 SOC.

This series adds support for the DDRPERFM via a new stm32-ddr-pmu driver,
registered into the perf framework.

This driver is inspired from arch/arm/mm/cache-l2x0-pmu.c

---
Changes from v1:
- add 'resets' description (bindings) and using (driver). Thanks Rob.
- rebase on 5.2-rc1 (that includes the ddrperfm clock control patch).

Changes from v2:
- rebase on 5.3-rc6 that has to be completed with
  'perf tools: fix alignment trap in perf stat': mandatory.
  'Documentation: add link to stm32mp157 docs': referenced from this series.
- take into account all remarks from Mark Rutland: thanks for your time!
  https://lkml.org/lkml/2019/6/26/388
- fix for event type filtering in stm32_ddr_pmu_event_init()

Gerald Baeza (5):
  Documentation: perf: stm32: ddrperfm support
  dt-bindings: perf: stm32: ddrperfm support
  perf: stm32: ddrperfm driver creation
  ARM: configs: enable STM32_DDR_PMU
  ARM: dts: stm32: add ddrperfm on stm32mp157c

 .../devicetree/bindings/perf/stm32-ddr-pmu.txt     |  16 +
 Documentation/perf/stm32-ddr-pmu.txt               |  37 ++
 arch/arm/boot/dts/stm32mp157c.dtsi                 |   8 +
 arch/arm/configs/multi_v7_defconfig                |   1 +
 drivers/perf/Kconfig                               |   6 +
 drivers/perf/Makefile                              |   1 +
 drivers/perf/stm32_ddr_pmu.c                       | 426 +++++++++++++++++++++
 7 files changed, 495 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/perf/stm32-ddr-pmu.txt
 create mode 100644 Documentation/perf/stm32-ddr-pmu.txt
 create mode 100644 drivers/perf/stm32_ddr_pmu.c

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2.7.4