linux-kernel - Re: [PATCH v6 4/6] Documentation: amd_pstate: Move amd

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Date:   Thu, 16 Feb 2023 14:12:26 +0800
From:   Huang Rui <ray.huang@....com>
To:     "Karny, Wyes" <Wyes.Karny@....com>
Cc:     Rafael J Wysocki <rafael@...nel.org>,
        Jonathan Corbet <corbet@....net>,
        Viresh Kumar <viresh.kumar@...aro.org>,
        "Limonciello, Mario" <Mario.Limonciello@....com>,
        "Yuan, Perry" <Perry.Yuan@....com>,
        "linux-doc@...r.kernel.org" <linux-doc@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>,
        Bagas Sanjaya <bagasdotme@...il.com>,
        "Shukla, Santosh" <Santosh.Shukla@....com>,
        Len Brown <lenb@...nel.org>,
        Robert Moore <robert.moore@...el.com>,
        Borislav Petkov <bp@...en8.de>,
        "Narayan, Ananth" <Ananth.Narayan@....com>,
        "Shenoy, Gautham Ranjal" <gautham.shenoy@....com>,
        Tor Vic <torvic9@...lbox.org>
Subject: Re: [PATCH v6 4/6] Documentation: amd_pstate: Move amd_pstate param
 to alphabetical order

On Tue, Feb 07, 2023 at 01:21:55AM +0800, Karny, Wyes wrote:
> Move amd_pstate command line param description to correct alphabetical
> order.
> 
> Signed-off-by: Wyes Karny <wyes.karny@....com>
> Reviewed-by: Mario Limonciello <mario.limonciello@....com>

Wyes, could you squeeze this minor patch to patch 3? I think we won't need
an additional patch to fix alphabetical order in the documentation.

Thanks,
Ray

> ---
>  .../admin-guide/kernel-parameters.txt         | 46 +++++++++----------
>  1 file changed, 23 insertions(+), 23 deletions(-)
> 
> diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
> index 56d5c189e458..d7685b4268ba 100644
> --- a/Documentation/admin-guide/kernel-parameters.txt
> +++ b/Documentation/admin-guide/kernel-parameters.txt
> @@ -339,6 +339,29 @@
>  			             This mode requires kvm-amd.avic=1.
>  			             (Default when IOMMU HW support is present.)
>  
> +	amd_pstate=	[X86]
> +			disable
> +			  Do not enable amd_pstate as the default
> +			  scaling driver for the supported processors
> +			passive
> +			  Use amd_pstate with passive mode as a scaling driver.
> +			  In this mode autonomous selection is disabled.
> +			  Driver requests a desired performance level and platform
> +			  tries to match the same performance level if it is
> +			  satisfied by guaranteed performance level.
> +			active
> +			  Use amd_pstate_epp driver instance as the scaling driver,
> +			  driver provides a hint to the hardware if software wants
> +			  to bias toward performance (0x0) or energy efficiency (0xff)
> +			  to the CPPC firmware. then CPPC power algorithm will
> +			  calculate the runtime workload and adjust the realtime cores
> +			  frequency.
> +			guided
> +			  Activate guided autonomous mode. Driver requests minimum and
> +			  maximum performance level and the platform autonomously
> +			  selects a performance level in this range and appropriate
> +			  to the current workload.
> +
>  	amijoy.map=	[HW,JOY] Amiga joystick support
>  			Map of devices attached to JOY0DAT and JOY1DAT
>  			Format: <a>,<b>
> @@ -7009,26 +7032,3 @@
>  				memory, and other data can't be written using
>  				xmon commands.
>  			off	xmon is disabled.
> -
> -	amd_pstate=	[X86]
> -			disable
> -			  Do not enable amd_pstate as the default
> -			  scaling driver for the supported processors
> -			passive
> -			  Use amd_pstate with passive mode as a scaling driver.
> -			  In this mode autonomous selection is disabled.
> -			  Driver requests a desired performance level and platform
> -			  tries to match the same performance level if it is
> -			  satisfied by guaranteed performance level.
> -			active
> -			  Use amd_pstate_epp driver instance as the scaling driver,
> -			  driver provides a hint to the hardware if software wants
> -			  to bias toward performance (0x0) or energy efficiency (0xff)
> -			  to the CPPC firmware. then CPPC power algorithm will
> -			  calculate the runtime workload and adjust the realtime cores
> -			  frequency.
> -			guided
> -			  Activate guided autonomous mode. Driver requests minimum and
> -			  maximum performance level and the platform autonomously
> -			  selects a performance level in this range and appropriate
> -			  to the current workload.
> -- 
> 2.34.1
>