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

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Message-ID: <30ff8a49-d3ab-63b7-1c9d-fbbea7a4b565@amd.com>
Date:   Fri, 9 Jun 2023 17:42:21 -0400
From:   Leo Li <sunpeng.li@....com>
To:     Mario Limonciello <mario.limonciello@....com>, rafael@...nel.org
Cc:     linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org,
        perry.yuan@....com, Ray.Huang@....com, Wyes.Karny@....com,
        gautham.shenoy@....com
Subject: Re: [PATCH] cpufreq: amd-pstate: Set default governor to schedutil



On 6/8/23 05:53, Mario Limonciello wrote:
> 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>

Thanks!

> ---
>   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