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linux-imx/tools/power/cpupower
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Dhananjay Ugwekar 2a6da27d09 tools/power/cpupower: Fix Pstate frequency reporting on AMD Family 1Ah CPUs 
[ Upstream commit 43cad521c6 ]

Update cpupower's P-State frequency calculation and reporting with AMD
Family 1Ah+ processors, when using the acpi-cpufreq driver. This is due
to a change in the PStateDef MSR layout in AMD Family 1Ah+.

Tested on 4th and 5th Gen AMD EPYC system

Signed-off-by: Ananth Narayan <Ananth.Narayan@amd.com>
Signed-off-by: Dhananjay Ugwekar <Dhananjay.Ugwekar@amd.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-07-25 09:50:41 +02:00
..
bench cpupower: add Makefile dependencies for install targets 2021-01-05 11:29:27 -07:00
debug treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_385.RULE 2022-06-10 14:51:36 +02:00
lib cpupower: Add is_valid_path API 2023-07-18 16:06:44 -06:00
man cpupower: fix reference to nonexistent document 2023-11-20 11:59:33 +01:00
po cpupower: Add Georgian translation 2022-11-30 16:32:34 -07:00
utils tools/power/cpupower: Fix Pstate frequency reporting on AMD Family 1Ah CPUs 2024-07-25 09:50:41 +02:00
.gitignore .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
cpupower-completion.sh cpupower : Auto-completion for cpupower tool 2018-12-05 07:52:45 -07:00
Makefile cpupower: Add Georgian translation to Makefile LANGUAGES 2023-08-17 14:28:16 -06:00
README cpupower: Remove dead link to homepage, and update the targets built. 2014-05-17 00:36:36 +02:00
TODO tools/power/cpupower/{ToDo => TODO}: Rename the todo file 2022-01-24 09:07:11 -07:00

README

The cpupower package consists of the following elements:

requirements

On x86 pciutils is needed at runtime (-lpci). For compilation pciutils-devel (pci/pci.h) and a gcc version providing cpuid.h is needed. For both it's not explicitly checked for (yet).

libcpupower

"libcpupower" is a library which offers a unified access method for userspace tools and programs to the cpufreq core and drivers in the Linux kernel. This allows for code reduction in userspace tools, a clean implementation of the interaction to the cpufreq core, and support for both the sysfs and proc interfaces [depending on configuration, see below].

compilation and installation

make su make install

should suffice on most systems. It builds libcpupower to put in /usr/lib; cpupower, cpufreq-bench_plot.sh to put in /usr/bin; and cpufreq-bench to put in /usr/sbin. If you want to set up the paths differently and/or want to configure the package to your specific needs, you need to open "Makefile" with an editor of your choice and edit the block marked CONFIGURATION.

THANKS

Many thanks to Mattia Dongili who wrote the autotoolization and libtoolization, the manpages and the italian language file for cpupower; to Dave Jones for his feedback and his dump_psb tool; to Bruno Ducrot for his powernow-k8-decode and intel_gsic tools as well as the french language file; and to various others commenting on the previous (pre-)releases of cpupower.

    Dominik Brodowski