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cpufreq: intel_pstate: Update default EPPs for Meteor Lake

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BugLink: https://bugs.launchpad.net/bugs/2077470

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>

(cherry picked from commit 1f4b7fdd71e066aa7c01e3e26ceeb39b47dd5461)
Signed-off-by: Pedro Henrique Kopper <pedro.kopper@canonical.com>
Acked-by: Thibault Ferrante <thibault.ferrante@canonical.com>
Acked-by: Manuel Diewald <manuel.diewald@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
This commit is contained in:
Srinivas Pandruvada
2024-09-11 05:15:00 +02:00
committed by Stefan Bader
parent ef994ffd0a
commit 2358e7eab7
1 changed files with 2 additions and 0 deletions
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drivers/cpufreq/intel_pstate.c
+2
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@@ -3430,6 +3430,8 @@ 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)),
{}
};