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Merge tag 'linux-cpupower-6.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux
Merge cpupower utility update for 6.16 from Shuah Khan: "Adds systemd service to run cpupower and changes binding's makefile to use -lcpupower. cpupower: add a systemd service to run cpupower cpupower: do not write DESTDIR to cpupower.service cpupower: do not call systemctl at install time cpupower: do not install files to /etc/default/ cpupower: change binding's makefile to use -lcpupower" * tag 'linux-cpupower-6.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux: cpupower: do not install files to /etc/default/ cpupower: do not call systemctl at install time cpupower: do not write DESTDIR to cpupower.service cpupower: change binding's makefile to use -lcpupower cpupower: add a systemd service to run cpupower
2 parents 82f2b0b + e517436 commit 6cfb07e

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‎tools/power/cpupower/Makefile‎

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# Makefile for cpupower
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#
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# Copyright (C) 2005,2006 Dominik Brodowski <linux@dominikbrodowski.net>
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# Copyright (C) 2025 Francesco Poli <invernomuto@paranoici.org>
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#
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# Based largely on the Makefile for udev by:
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#
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sbindir ?= /usr/sbin
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mandir ?= /usr/man
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libdir ?= /usr/lib
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libexecdir ?= /usr/libexec
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includedir ?= /usr/include
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localedir ?= /usr/share/locale
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docdir ?= /usr/share/doc/packages/cpupower
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INSTALL = /usr/bin/install -c
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INSTALL_PROGRAM = ${INSTALL}
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INSTALL_DATA = ${INSTALL} -m 644
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SETPERM_DATA = chmod 644
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#bash completion scripts get sourced and so they should be rw only.
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INSTALL_SCRIPT = ${INSTALL} -m 644
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$(INSTALL_PROGRAM) $(OUTPUT)cpupower $(DESTDIR)${bindir}
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$(INSTALL) -d $(DESTDIR)${bash_completion_dir}
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$(INSTALL_SCRIPT) cpupower-completion.sh '$(DESTDIR)${bash_completion_dir}/cpupower'
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$(INSTALL) -d $(DESTDIR)${confdir}
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$(INSTALL_DATA) cpupower-service.conf '$(DESTDIR)${confdir}'
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$(INSTALL) -d $(DESTDIR)${libexecdir}
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$(INSTALL_PROGRAM) cpupower.sh '$(DESTDIR)${libexecdir}/cpupower'
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$(INSTALL) -d $(DESTDIR)${libdir}/systemd/system
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sed 's|___CDIR___|${confdir}|; s|___LDIR___|${libexecdir}|' cpupower.service.in > '$(DESTDIR)${libdir}/systemd/system/cpupower.service'
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$(SETPERM_DATA) '$(DESTDIR)${libdir}/systemd/system/cpupower.service'
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install-man:
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$(INSTALL_DATA) -D man/cpupower.1 $(DESTDIR)${mandir}/man1/cpupower.1
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- rm -f $(DESTDIR)${includedir}/cpufreq.h
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- rm -f $(DESTDIR)${includedir}/cpuidle.h
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- rm -f $(DESTDIR)${bindir}/utils/cpupower
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- rm -f $(DESTDIR)${confdir}cpupower-service.conf
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- rm -f $(DESTDIR)${libexecdir}/cpupower
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- rm -f $(DESTDIR)${libdir}/systemd/system/cpupower.service
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- rm -f $(DESTDIR)${mandir}/man1/cpupower.1
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- rm -f $(DESTDIR)${mandir}/man1/cpupower-frequency-set.1
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- rm -f $(DESTDIR)${mandir}/man1/cpupower-frequency-info.1

‎tools/power/cpupower/README‎

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-----------------------------------------------------------------------
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| man pages | /usr/man |
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-----------------------------------------------------------------------
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| systemd service | /usr/lib/systemd/system |
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-----------------------------------------------------------------------
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| systemd support script | /usr/libexec |
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-----------------------------------------------------------------------
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To put it in other words it makes build results available system-wide,
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enabling any user to simply start using it without any additional steps
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-----------------------------------------------------------------------
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| man pages | ${DESTDIR}/usr/man |
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-----------------------------------------------------------------------
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| systemd service | ${DESTDIR}/usr/lib/systemd/system |
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-----------------------------------------------------------------------
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| systemd support script | ${DESTDIR}/usr/libexec |
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-----------------------------------------------------------------------
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If you look at the table for the default 'make' output dirs you will
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notice that the only difference with the non-default case is the
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shall point to the lib dir:
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sudo LD_LIBRARY_PATH=lib64/ ./bin/cpupower
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systemd service
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---------------
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A systemd service is also provided to run the cpupower utility at boot with
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settings read from a configuration file.
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If you want systemd to find the new service after the installation, the service
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unit must have been installed in one of the system unit search path directories
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(such as '/usr/lib/systemd/system/', which is the default location) and (unless
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you are willing to wait for the next reboot) you need to issue the following
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command:
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$ sudo systemctl daemon-reload
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If you want to enable this systemd service, edit '/etc/cpupower-service.conf'
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(uncommenting at least one of the options, depending on your preferences)
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and then issue the following command:
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$ sudo systemctl enable --now cpupower.service
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THANKS
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------

‎tools/power/cpupower/bindings/python/Makefile‎

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# SPDX-License-Identifier: GPL-2.0-only
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# Makefile for libcpupower's Python bindings
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#
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# This Makefile expects you have already run the makefile for cpupower to build
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# the .o files in the lib directory for the bindings to be created.
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# This Makefile expects you have already run `make install-lib` in the lib
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# directory for the bindings to be created.
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CC := gcc
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HAVE_SWIG := $(shell if which swig >/dev/null 2>&1; then echo 1; else echo 0; fi)
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HAVE_PYCONFIG := $(shell if which python-config >/dev/null 2>&1; then echo 1; else echo 0; fi)
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LIB_DIR := ../../lib
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PY_INCLUDE = $(firstword $(shell python-config --includes))
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OBJECTS_LIB = $(wildcard $(LIB_DIR)/*.o)
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INSTALL_DIR = $(shell python3 -c "import site; print(site.getsitepackages()[0])")
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all: _raw_pylibcpupower.so
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_raw_pylibcpupower.so: raw_pylibcpupower_wrap.o
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$(CC) -shared $(OBJECTS_LIB) raw_pylibcpupower_wrap.o -o _raw_pylibcpupower.so
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$(CC) -shared -lcpupower raw_pylibcpupower_wrap.o -o _raw_pylibcpupower.so
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raw_pylibcpupower_wrap.o: raw_pylibcpupower_wrap.c
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$(CC) -fPIC -c raw_pylibcpupower_wrap.c $(PY_INCLUDE)

‎tools/power/cpupower/bindings/python/README‎

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requirements
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------------
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* You need the object files in the libcpupower directory compiled by
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cpupower's makefile.
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* If you are building completely from upstream; please install libcpupower by
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running `make install-lib` within the cpupower directory. This installs the
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libcpupower.so file and symlinks needed. Otherwise, please make sure a symlink
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to libcpupower.so exists in your library path from your distribution's
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packages.
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* The SWIG program must be installed.
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* The Python's development libraries installed.
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* The Python's development libraries must be installed.
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Please check that your version of SWIG is compatible with the version of Python
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installed on your machine by checking the SWIG changelog on their website.
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https://swig.org/
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Note that while SWIG itself is GPL v3+ licensed; the resulting output,
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the bindings code: is permissively licensed + the license of libcpupower's .o
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files. For these bindings that means GPL v2.
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the bindings code: is permissively licensed + the license of libcpupower's
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library files. For these bindings that means GPL v2.
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Please see https://swig.org/legal.html and the discussion [1] for more details.
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‎tools/power/cpupower/cpupower-service.conf‎

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# SPDX-License-Identifier: GPL-2.0-or-later
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# Copyright (C) 2012, Sébastien Luttringer
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# Copyright (C) 2024-2025, Francesco Poli <invernomuto@paranoici.org>
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# Configuration file for cpupower.service systemd service unit
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#
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# Edit this file (uncommenting at least one of the options, depending on
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# your preferences) and then enable cpupower.service, if you want cpupower
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# to run at boot with these settings.
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# --- CPU clock frequency ---
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# Define CPU governor
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# Valid governors: ondemand, performance, powersave, conservative, userspace
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#GOVERNOR='ondemand'
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# Limit frequency range
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# Valid suffixes: Hz, kHz (default), MHz, GHz, THz
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#MIN_FREQ="2.25GHz"
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#MAX_FREQ="3GHz"
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# Set a specific frequency
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# Requires userspace governor to be available.
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# If this option is set, all the previous frequency options are ignored
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#FREQ=
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# --- CPU policy ---
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# Set a register on supported Intel processore which allows software to convey
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# its policy for the relative importance of performance versus energy savings to
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# the processor. See man CPUPOWER-SET(1) for additional details
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#PERF_BIAS=

‎tools/power/cpupower/cpupower.service.in‎

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# SPDX-License-Identifier: GPL-2.0-or-later
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# Copyright (C) 2012-2020, Sébastien Luttringer
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# Copyright (C) 2024-2025, Francesco Poli <invernomuto@paranoici.org>
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[Unit]
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Description=Apply cpupower configuration
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ConditionVirtualization=!container
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[Service]
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Type=oneshot
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EnvironmentFile=-___CDIR___cpupower-service.conf
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ExecStart=___LDIR___/cpupower
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RemainAfterExit=yes
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[Install]
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WantedBy=multi-user.target

‎tools/power/cpupower/cpupower.sh‎

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#!/bin/sh
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# SPDX-License-Identifier: GPL-2.0-or-later
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# Copyright (C) 2012, Sébastien Luttringer
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# Copyright (C) 2024, Francesco Poli <invernomuto@paranoici.org>
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ESTATUS=0
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# apply CPU clock frequency options
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if test -n "$FREQ"
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then
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cpupower frequency-set -f "$FREQ" > /dev/null || ESTATUS=1
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elif test -n "${GOVERNOR}${MIN_FREQ}${MAX_FREQ}"
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then
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cpupower frequency-set \
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${GOVERNOR:+ -g "$GOVERNOR"} \
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${MIN_FREQ:+ -d "$MIN_FREQ"} ${MAX_FREQ:+ -u "$MAX_FREQ"} \
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> /dev/null || ESTATUS=1
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fi
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# apply CPU policy options
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if test -n "$PERF_BIAS"
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then
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cpupower set -b "$PERF_BIAS" > /dev/null || ESTATUS=1
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fi
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exit $ESTATUS

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