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

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Date:   Sat, 10 Jun 2023 18:54:56 +0800
From:   Huang Rui <ray.huang@....com>
To:     "Limonciello, Mario" <Mario.Limonciello@....com>
Cc:     "rafael@...nel.org" <rafael@...nel.org>,
        "linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "Yuan, Perry" <Perry.Yuan@....com>,
        "Karny, Wyes" <Wyes.Karny@....com>,
        "Shenoy, Gautham Ranjal" <gautham.shenoy@....com>,
        "Li, Sun peng (Leo)" <Sunpeng.Li@....com>
Subject: Re: [PATCH] cpufreq: amd-pstate: Set default governor to schedutil

On Thu, Jun 08, 2023 at 05:53:58PM +0800, Limonciello, Mario 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>

Acked-by: Huang Rui <ray.huang@....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
> -- 
> 2.34.1
>