linux-kernel - Re: [PATCH v2] cpufreq: amd-pstate: Set default governor to schedutil

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Date:   Mon, 12 Jun 2023 12:56:27 +0530
From:   Viresh Kumar <viresh.kumar@...aro.org>
To:     Perry Yuan <perry.yuan@....com>
Cc:     rafael.j.wysocki@...el.com, Ray.Huang@....com,
        Mario.Limonciello@....com, Deepak.Sharma@....com,
        Wyes.Karny@....com, gautham.shenoy@....com, Sunpeng.Li@....com,
        Xinmei.Huang@....com, Xiaojian.Du@....com, Li.Meng@....com,
        linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] cpufreq: amd-pstate: Set default governor to schedutil

On 11-06-23, 23:03, Perry Yuan wrote:
> From: Mario Limonciello <mario.limonciello@....com>
> 
> The Kconfig currently defaults the governor to schedutil on x86_64
> only when intel-pstate and SMP have been selected.
> 
> If the kernel is built only with amd-pstate, the default governor
> should also be schedutil.
> 
> Cc: Sun Peng (Leo) Li <sunpeng.li@....com>
> Signed-off-by: Mario Limonciello <mario.limonciello@....com>
> Reviewed-by: Leo Li <sunpeng.li@....com>
> Acked-by: Huang Rui <ray.huang@....com>
> Tested-by: Perry Yuan <Perry.Yuan@....com>
> ---
>  drivers/cpufreq/Kconfig | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/cpufreq/Kconfig b/drivers/cpufreq/Kconfig
> index 2c839bd2b051..a1c51abddbc5 100644
> --- a/drivers/cpufreq/Kconfig
> +++ b/drivers/cpufreq/Kconfig
> @@ -38,7 +38,7 @@ choice
>  	prompt "Default CPUFreq governor"
>  	default CPU_FREQ_DEFAULT_GOV_USERSPACE if ARM_SA1110_CPUFREQ
>  	default CPU_FREQ_DEFAULT_GOV_SCHEDUTIL if ARM64 || ARM
> -	default CPU_FREQ_DEFAULT_GOV_SCHEDUTIL if X86_INTEL_PSTATE && SMP
> +	default CPU_FREQ_DEFAULT_GOV_SCHEDUTIL if (X86_INTEL_PSTATE || X86_AMD_PSTATE) && SMP
>  	default CPU_FREQ_DEFAULT_GOV_PERFORMANCE
>  	help
>  	  This option sets which CPUFreq governor shall be loaded at

Acked-by: Viresh Kumar <viresh.kumar@...aro.org>

-- 
viresh