tools/power x86_energy_perf_policy: Prefer driver HWP limits

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[ Upstream commit 2734fdbc9b ]

When we are successful in using cpufreq min/max limits,
skip setting the raw MSR limits entirely.

This is necessary to avoid undoing any modification that
the cpufreq driver makes to our sysfs request.

eg. intel_pstate may take our request for a limit
that is valid according to HWP.CAP.MIN/MAX and clip
it to be within the range available in PLATFORM_INFO.

Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Len Brown 2025-09-19 15:56:46 -04:00 • committed by Greg Kroah-Hartman

parent 1c0eb3211e

commit fa0d842eea

1 changed files with 9 additions and 4 deletions

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tools/power/x86/x86_energy_perf_policy/x86_energy_perf_policy.c

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