linux-kernel - [PATCH 00/13] Introduce STM32 DDR PMU for STM32MP platforms

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Message-ID: <20250623-ddrperfm-upstream-v1-0-7dffff168090@foss.st.com>
Date: Mon, 23 Jun 2025 11:27:05 +0200
From: Clément Le Goffic <clement.legoffic@...s.st.com>
To: Will Deacon <will@...nel.org>, Mark Rutland <mark.rutland@....com>,
        Rob
 Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor
 Dooley <conor+dt@...nel.org>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Alexandre Torgue <alexandre.torgue@...s.st.com>,
        Philipp Zabel
	<p.zabel@...gutronix.de>,
        Jonathan Corbet <corbet@....net>,
        Gatien Chevallier
	<gatien.chevallier@...s.st.com>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Gabriel Fernandez
	<gabriel.fernandez@...s.st.com>
CC: <linux-arm-kernel@...ts.infradead.org>, <linux-perf-users@...r.kernel.org>,
        <devicetree@...r.kernel.org>,
        <linux-stm32@...md-mailman.stormreply.com>,
        <linux-kernel@...r.kernel.org>, <linux-doc@...r.kernel.org>,
        <linux-clk@...r.kernel.org>,
        Clément Le Goffic <clement.legoffic@...s.st.com>
Subject: [PATCH 00/13] Introduce STM32 DDR PMU for STM32MP platforms

This patch series introduces the DDR Performance Monitor (DDRPERFM) support for
STM32MP platforms.

The series firstly improves the STM32MP25 RCC driver to make it usable
as an access controller, needed for driver probe.

It also includes the addition of device tree bindings, the HDP driver,
documentation and updates to the device tree files for
STM32MP13, STM32MP15 and STM32MP25 SoCs.
The series also updates the MAINTAINERS file to include myself as the
maintainer for the STM32 DDR PMU driver.

Signed-off-by: Clément Le Goffic <clement.legoffic@...s.st.com>
---
Clément Le Goffic (13):
      bus: firewall: move stm32_firewall header file in include folder
      dt-bindings: stm32: stm32mp25: add `access-controller-cell` property
      clk: stm32mp25: add firewall grant_access ops
      arm64: dts: st: set rcc as an access-controller
      dt-bindings: perf: stm32: introduce DDRPERFM dt-bindings
      perf: stm32: introduce DDRPERFM driver
      Documentation: perf: stm32: add ddrperfm support
      MAINTAINERS: add myself as STM32 DDR PMU maintainer
      ARM: dts: stm32: add ddrperfm on stm32mp131
      ARM: dts: stm32: add ddrperfm on stm32mp151
      arm64: dts: st: add ddrperfm on stm32mp251
      arm64: dts: st: support ddrperfm on stm32mp257f-dk
      arm64: dts: st: support ddrperfm on stm32mp257f-ev1

 Documentation/admin-guide/perf/index.rst           |   1 +
 Documentation/admin-guide/perf/stm32-ddr-pmu.rst   |  86 ++
 .../bindings/clock/st,stm32mp25-rcc.yaml           |   6 +
 .../devicetree/bindings/perf/st,stm32-ddr-pmu.yaml |  93 +++
 MAINTAINERS                                        |   7 +
 arch/arm/boot/dts/st/stm32mp131.dtsi               |   7 +
 arch/arm/boot/dts/st/stm32mp151.dtsi               |   7 +
 arch/arm64/boot/dts/st/stm32mp251.dtsi             |   8 +
 arch/arm64/boot/dts/st/stm32mp257f-dk.dts          |   5 +
 arch/arm64/boot/dts/st/stm32mp257f-ev1.dts         |   5 +
 drivers/bus/stm32_etzpc.c                          |   3 +-
 drivers/bus/stm32_firewall.c                       |   3 +-
 drivers/bus/stm32_rifsc.c                          |   3 +-
 drivers/clk/stm32/clk-stm32mp25.c                  |  40 +-
 drivers/perf/Kconfig                               |  11 +
 drivers/perf/Makefile                              |   1 +
 drivers/perf/stm32_ddr_pmu.c                       | 893 +++++++++++++++++++++
 {drivers => include/linux}/bus/stm32_firewall.h    |   0
 18 files changed, 1172 insertions(+), 7 deletions(-)
---
base-commit: 86731a2a651e58953fc949573895f2fa6d456841
change-id: 20250526-ddrperfm-upstream-bf07f57775da

Best regards,
-- 
Clément Le Goffic <clement.legoffic@...s.st.com>