[PATCH v7 0/2] perf: Fujitsu: Add Uncore MAC/PCI PMU driver

Koichi Okuno
2025-08-15T04:00:28Z

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 v7:
- Modify the code as suggested. (Jonathan Cameron)
- Renamed the macros name to make it clear which register it applies to.
- Deleted unused macro.
- Changed some programming styles as suggested.
- I tested using v6.17-rc1 and confirmed that I get the same results
as before the macro name change.
- Link to v6:https://lore.kernel.org/all/20250711071404.2138816-1-fj2767dz@fujitsu.com/

Signed-off-by: Koichi Okuno <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 | 552 ++++++++++++++++++
drivers/perf/fujitsu_pci_pmu.c | 536 +++++++++++++++++
7 files changed, 1233 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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