kernel.git/tools/power/cpupower/Makefile, branch master

cpupower: make systemd unit installation optional

2026-01-16T20:41:26Z

cpupower currently installs a cpupower.service unit file into unitdir unconditionally, regardless of whether systemd is used by the host. Improve the installation procedure by making this systemd step optional: a 'SYSTEMD' build parameter that defaults to 'true' and can be set to 'false' to disable the installation of systemd's unit file. Since 'SYSTEMD' defaults to true, the current behavior is kept as the default. Link: https://lore.kernel.org/r/20260113132753.1730020-2-joaomarcos.costa@bootlin.com Signed-off-by: João Marcos Costa Signed-off-by: Shuah Khan

tools/power/cpupower: Support building libcpupower statically

2025-11-05T16:56:01Z

The cpupower Makefile built and installed libcpupower as a shared library (libcpupower.so) without passing `STATIC=true`, but did not build a static version of the library even with `STATIC=true`. (Only the programs were static). Thus, out-of-tree programs using libcpupower were unable to link statically against the library without having access to intermediate object files produced during the build. This fixes that situation by ensuring that libcpupower.a is built and installed when `STATIC=true` is specified. Link: https://lore.kernel.org/r/x7geegquiks3zndiavw2arihdc2rk7e2dx3lk7yxkewqii6zpg@tzjijqxyzwmu Signed-off-by: Zuo An Signed-off-by: Shuah Khan

cpupower: split unitdir from libdir in Makefile

2025-06-09T16:17:46Z

Improve the installation procedure for the systemd service unit 'cpupower.service', to be more flexible. Some distros install libraries to /usr/lib64/, but systemd service units have to be installed to /usr/lib/systemd/system: as a consequence, the installation procedure should not assume that systemd service units can be installed to ${libdir}/systemd/system ... Define a dedicated variable ("unitdir") in the Makefile. Link: https://lore.kernel.org/linux-pm/260b6d79-ab61-43b7-a0eb-813e257bc028@leemhuis.info/T/#m0601940ab439d5cbd288819d2af190ce59e810e6 Fixes: 9c70b779ad91 ("cpupower: add a systemd service to run cpupower") Link: https://lore.kernel.org/r/20250521211656.65646-1-invernomuto@paranoici.org Signed-off-by: Francesco Poli (wintermute) Tested-by: Thorsten Leemhuis Signed-off-by: Shuah Khan

cpupower: do not install files to /etc/default/

2025-05-13T22:06:28Z

Improve the installation procedure for the systemd service unit 'cpupower.service', to be more distro-agnostic. Do not install the service unit configuration file to /etc/default/ (a directory that is used by Debian and Debian-derivatives and only rarely by other distros). Also, clarify the role of the configuration file in its own comments. Link: https://lore.kernel.org/linux-pm/20250509002206.bd2519ba52035d47c3c32aa6@paranoici.org/T/#ma8a3fa80acc4036af6c754e8ecabacc55b288ad1 Link: https://lore.kernel.org/r/20250513163937.61062-5-invernomuto@paranoici.org Fixes: 9c70b779ad91 ("cpupower: add a systemd service to run cpupower") Signed-off-by: Francesco Poli (wintermute) Signed-off-by: Shuah Khan

cpupower: do not call systemctl at install time

2025-05-13T22:06:22Z

Fix the installation procedure for the systemd service unit 'cpupower.service'. Do not call "systemctl daemon-reload" in the Makefile, but explain when this command should be manually issued in the README file. Link: https://lore.kernel.org/linux-pm/20250509002206.bd2519ba52035d47c3c32aa6@paranoici.org/T/#mfbb938f9c0d5a21173acb92a061eb9205fd0abfe Link: https://lore.kernel.org/r/20250513163937.61062-4-invernomuto@paranoici.org Fixes: 9c70b779ad91 ("cpupower: add a systemd service to run cpupower") Signed-off-by: Francesco Poli (wintermute) Signed-off-by: Shuah Khan

cpupower: do not write DESTDIR to cpupower.service

2025-05-13T22:06:12Z

Fix the use of DESTDIR variable in the Makefile, as far as the installation of the systemd service unit 'cpupower.service' is concerned. This was caused by a misunderstanding about the purpose of the DESTDIR variable in the Makefile, which is instead meant to support staged installations: its value should not end up into installed file contents. Link: https://lore.kernel.org/linux-pm/20250509002206.bd2519ba52035d47c3c32aa6@paranoici.org/T/#mfbb938f9c0d5a21173acb92a061eb9205fd0abfe Link: https://www.gnu.org/prep/standards/html_node/DESTDIR.html Link: https://lore.kernel.org/r/20250513163937.61062-3-invernomuto@paranoici.org Fixes: 9c70b779ad91 ("cpupower: add a systemd service to run cpupower") Signed-off-by: Francesco Poli (wintermute) Signed-off-by: Shuah Khan

cpupower: add a systemd service to run cpupower

2025-05-02T19:52:45Z

One of the most typical use cases of the 'cpupower' utility works as follows: run 'cpupower' at boot with the desired command-line options and then forget about it. Add a systemd service (disabled by default) that automates this use case (for environments where the initialization system is 'systemd'), by running 'cpupower' at boot with the settings read from a default configuration file. The systemd service, the associated support script and the corresponding default configuration file are derived from what is provided by the Arch Linux package (under "GPL-2.0-or-later" terms), modernized and enhanced in various ways (the script has also been checked with 'shellcheck'). Link: https://gitlab.archlinux.org/archlinux/packaging/packages/linux-tools/-/tree/dd2e2a311e05413d0d87a0346ffce8c7e98d6d2b Signed-off-by: Francesco Poli (wintermute) Reviewed-by: John B. Wyatt IV Reviewed-by: John B. Wyatt IV Tested-by: John B. Wyatt IV Tested-by: John B. Wyatt IV Signed-off-by: Shuah Khan

cpupower: Make lib versioning scheme more obvious and fix version link

2025-03-07T20:58:10Z

library versioning was broken: libcpupower.so.0.0.1 libcpupower.so -> libcpupower.so.0.0.1 libcpupower.so.1 -> libcpupower.so.0.0.1 and is fixed by this patch to: libcpupower.so.1.0.1 libcpupower.so -> libcpupower.so.1.0.1 libcpupower.so.1 -> libcpupower.so.1.0.1 Link: https://lore.kernel.org/r/20250307094334.39587-1-trenn@suse.de Signed-off-by: Thomas Renninger Signed-off-by: Shuah Khan

pm: cpupower: Makefile: Fix cross compilation

2024-12-10T00:51:53Z

After commit f79473ed9220 ("pm: cpupower: Makefile: Allow overriding cross-compiling env params") we would fail to cross compile cpupower in buildroot which uses the recipe at [1] where only the CROSS variable is being set. The issue here is the use of the lazy evaluation for all variables: CC, LD, AR, STRIP, RANLIB, rather than just CROSS. [1]: https://git.buildroot.net/buildroot/tree/package/linux-tools/linux-tool-cpupower.mk.in Fixes: f79473ed9220 ("pm: cpupower: Makefile: Allow overriding cross-compiling env params") Reported-by: Florian Fainelli Closes: https://lore.kernel.org/all/2bbabd2c-24ef-493c-a199-594e5dada3da@broadcom.com/ Signed-off-by: Peng Fan Tested-by: Florian Fainelli Signed-off-by: Shuah Khan

cpupower: add checks for xgettext and msgfmt

2024-10-21T22:10:43Z

Check whether xgettext and msgfmt are available on the system before attempting to generate GNU gettext Language Translations. In case of missing dependency, generate error message directing user to install the necessary package. Tested-by: John B. Wyatt IV Tested-by: John B. Wyatt IV Suggested-by: Shuah Khan Signed-off-by: Siddharth Menon Signed-off-by: Shuah Khan