linux-kernel - Re: [PATCH] cpufreq: intel_pstate: Update Balance performance EPP for Granite Rapids

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Message-ID: <CAJZ5v0hpcSOFndaSMvrdz5ryFcF65PEkpC+8Hh9nWzcQP7JNDw@mail.gmail.com>
Date: Wed, 13 Nov 2024 13:04:22 +0100
From: "Rafael J. Wysocki" <rafael@...nel.org>
To: Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>
Cc: rafael@...nel.org, viresh.kumar@...aro.org, linux-pm@...r.kernel.org, 
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] cpufreq: intel_pstate: Update Balance performance EPP for
 Granite Rapids

On Wed, Nov 13, 2024 at 1:00 AM Srinivas Pandruvada
<srinivas.pandruvada@...ux.intel.com> wrote:
>
> Update EPP default for balance_performance to 32. This will give better
> performance out of box using Intel P-State powersave governor while still
> offering power savings compared to performance governor.
>
> This is in line with what has already been done for Emerald Rapids and
> Sapphire Rapids.
>
> Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>
> ---
>  drivers/cpufreq/intel_pstate.c | 2 ++
>  1 file changed, 2 insertions(+)
>
> diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
> index cd2ac1ba53d2..f1db73a52bae 100644
> --- a/drivers/cpufreq/intel_pstate.c
> +++ b/drivers/cpufreq/intel_pstate.c
> @@ -3658,6 +3658,8 @@ static const struct x86_cpu_id intel_epp_default[] = {
>         X86_MATCH_VFM(INTEL_ALDERLAKE_L, HWP_SET_DEF_BALANCE_PERF_EPP(102)),
>         X86_MATCH_VFM(INTEL_SAPPHIRERAPIDS_X, HWP_SET_DEF_BALANCE_PERF_EPP(32)),
>         X86_MATCH_VFM(INTEL_EMERALDRAPIDS_X, HWP_SET_DEF_BALANCE_PERF_EPP(32)),
> +       X86_MATCH_VFM(INTEL_GRANITERAPIDS_X, HWP_SET_DEF_BALANCE_PERF_EPP(32)),
> +       X86_MATCH_VFM(INTEL_GRANITERAPIDS_D, HWP_SET_DEF_BALANCE_PERF_EPP(32)),
>         X86_MATCH_VFM(INTEL_METEORLAKE_L, HWP_SET_EPP_VALUES(HWP_EPP_POWERSAVE,
>                       179, 64, 16)),
>         X86_MATCH_VFM(INTEL_ARROWLAKE, HWP_SET_EPP_VALUES(HWP_EPP_POWERSAVE,
> --

Applied as 6.13 material, thanks!