linux-kernel - [PATCH v6 0/2] perf: Fujitsu: Add Uncore MAC/PCI PMU driver

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Message-ID: <20250711071404.2138816-1-fj2767dz@fujitsu.com>
Date: Fri, 11 Jul 2025 16:13:38 +0900
From: Koichi Okuno <fj2767dz@...itsu.com>
To: Will Deacon <will@...nel.org>,
	Mark Rutland <mark.rutland@....com>,
	Jonathan Corbet <corbet@....net>,
	Catalin Marinas <catalin.marinas@....com>,
	Gowthami Thiagarajan <gthiagarajan@...vell.com>,
	Linu Cherian <lcherian@...vell.com>,
	Robin Murphy <robin.murphy@....com>,
	linux-arm-kernel@...ts.infradead.org,
	Bjorn Andersson <quic_bjorande@...cinc.com>,
	Geert Uytterhoeven <geert+renesas@...der.be>,
	Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
	Konrad Dybcio <konradybcio@...nel.org>,
	Neil Armstrong <neil.armstrong@...aro.org>,
	Arnd Bergmann <arnd@...db.de>,
	Nícolas F. R. A. Prado <nfraprado@...labora.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Peter Zijlstra <peterz@...radead.org>,
	Jonathan Cameron <Jonathan.Cameron@...wei.com>,
	linux-doc@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Koichi Okuno <fj2767dz@...itsu.com>
Subject: [PATCH v6 0/2] perf: Fujitsu: Add Uncore MAC/PCI PMU driver

This adds two new dynamic PMUs to the Perf Events framework to program
and control the Uncore MAC/PCI PMUs in Fujitsu chips.

These drivers were created with reference to drivers/perf/qcom_l3_pmu.c.

These drivers export formatting and event information to sysfs so they can
be used by the perf user space tools with the syntaxes:

perf stat -e mac_iod0_mac0_ch0/ea-mac/ ls
perf stat -e mac_iod0_mac0_ch0/event=0x80/ ls

perf stat -e pci_iod0_pci0/ea-pci/ ls
perf stat -e pci_iod0_pci0/event=0x80/ ls

FUJITSU-MONAKA PMU Events Specification v1.1 URL:
https://github.com/fujitsu/FUJITSU-MONAKA

Changes in v6:
- Modify the code as suggested. (Peter Zijlstra)
  - Added PERF_PMU_CAP_NO_INTERRUPT which means not being able to sample.
- Link to v5:https://lore.kernel.org/all/20250617102819.3685543-1-fj2767dz@fujitsu.com/

Koichi Okuno (2):
  perf: Fujitsu: Add the Uncore MAC PMU driver
  perf: Fujitsu: Add the Uncore PCI PMU driver

 .../admin-guide/perf/fujitsu_mac_pmu.rst      |  73 +++
 .../admin-guide/perf/fujitsu_pci_pmu.rst      |  50 ++
 Documentation/admin-guide/perf/index.rst      |   2 +
 drivers/perf/Kconfig                          |  18 +
 drivers/perf/Makefile                         |   2 +
 drivers/perf/fujitsu_mac_pmu.c                | 569 ++++++++++++++++++
 drivers/perf/fujitsu_pci_pmu.c                | 553 +++++++++++++++++
 7 files changed, 1267 insertions(+)
 create mode 100644 Documentation/admin-guide/perf/fujitsu_mac_pmu.rst
 create mode 100644 Documentation/admin-guide/perf/fujitsu_pci_pmu.rst
 create mode 100644 drivers/perf/fujitsu_mac_pmu.c
 create mode 100644 drivers/perf/fujitsu_pci_pmu.c

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2.43.0