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

Message

Yoshihiro Furudera Nov. 8, 2024, 5:40 a.m. UTC

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 Specification URL:
https://github.com/fujitsu/FUJITSU-MONAKA

I have a question.
When I run scripts/checkpatch.pl, the following WARNING appears.
> WARNING: Missing or malformed SPDX-License-Identifier tag in line 1
> #56: FILE: Documentation/admin-guide/perf/fujitsu_mac_pmu.rst:1:
> +===========================================================================

Some of the files under Documentation/admin-guide/perf have an
SPDX-License-Identifier tag and some don't. Is it necessary to
include it in fujitsu_mac_pmu.rst and fujitsu_pci_pmu.rst and?

Best regards.
Yoshihiro Furudera

Yoshihiro Furudera (2):
  perf: Fujitsu: Add the Uncore MAC PMU driver
  perf: Fujitsu: Add the Uncore PCI PMU driver

 .../admin-guide/perf/fujitsu_mac_pmu.rst      |  20 +
 .../admin-guide/perf/fujitsu_pci_pmu.rst      |  20 +
 arch/arm64/configs/defconfig                  |   2 +
 drivers/perf/Kconfig                          |  18 +
 drivers/perf/Makefile                         |   2 +
 drivers/perf/fujitsu_mac_pmu.c                | 633 ++++++++++++++++++
 drivers/perf/fujitsu_pci_pmu.c                | 613 +++++++++++++++++
 include/linux/cpuhotplug.h                    |   2 +
 8 files changed, 1310 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