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cpufreq: intel_pstate: Update default EPPs for Meteor Lake

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Update default balanced_performance EPP to 115 and performance EPP to 16.

Changing the balanced_performance EPP has better performance/watt
compared to default powerup EPP value of 128.

Changing the performance EPP to 0x10 shows reduced power for similar
performance as EPP 0. On small form factor devices this is beneficial
as lower power results in lower CPU and skin temperature. This
results in reduced thermal throttling and higher performance.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Srinivas Pandruvada 2024-02-19 18:26:07 -08:00 committed by Rafael J. Wysocki
parent 240a8da623
commit 1f4b7fdd71
1 changed files with 2 additions and 0 deletions
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2
drivers/cpufreq/intel_pstate.c
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@ -3425,6 +3425,8 @@ static const struct x86_cpu_id intel_epp_default[] = {
*/
X86_MATCH_INTEL_FAM6_MODEL(ALDERLAKE_L, HWP_SET_DEF_BALANCE_PERF_EPP(102)),
X86_MATCH_INTEL_FAM6_MODEL(SAPPHIRERAPIDS_X, HWP_SET_DEF_BALANCE_PERF_EPP(32)),
X86_MATCH_INTEL_FAM6_MODEL(METEORLAKE_L, HWP_SET_EPP_VALUES(HWP_EPP_POWERSAVE,
HWP_EPP_BALANCE_POWERSAVE, 115, 16)),
{}
};