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Message-ID:
 <DM4PR12MB63512DD9463BF057F03B7E8EF7312@DM4PR12MB6351.namprd12.prod.outlook.com>
Date: Fri, 22 Mar 2024 06:30:12 +0000
From: "Meng, Li (Jassmine)" <Li.Meng@....com>
To: "Yuan, Perry" <Perry.Yuan@....com>, "rafael.j.wysocki@...el.com"
	<rafael.j.wysocki@...el.com>, "Limonciello, Mario"
	<Mario.Limonciello@....com>, "viresh.kumar@...aro.org"
	<viresh.kumar@...aro.org>, "Shenoy, Gautham Ranjal" <gautham.shenoy@....com>,
	"Petkov, Borislav" <Borislav.Petkov@....com>, "Huang, Ray"
	<Ray.Huang@....com>
CC: "Deucher, Alexander" <Alexander.Deucher@....com>, "Huang, Shimmer"
	<Shimmer.Huang@....com>, "oleksandr@...alenko.name"
	<oleksandr@...alenko.name>, "Du, Xiaojian" <Xiaojian.Du@....com>,
	"linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH v9 1/8] cpufreq: amd-pstate: Document *_limit_* fields in
 struct amd_cpudata

[AMD Official Use Only - General]

> -----Original Message-----
> From: Yuan, Perry <Perry.Yuan@....com>
> Sent: Tuesday, March 19, 2024 4:29 PM
> To: rafael.j.wysocki@...el.com; Limonciello, Mario
> <Mario.Limonciello@....com>; viresh.kumar@...aro.org; Shenoy, Gautham
> Ranjal <gautham.shenoy@....com>; Petkov, Borislav
> <Borislav.Petkov@....com>; Huang, Ray <Ray.Huang@....com>
> Cc: Deucher, Alexander <Alexander.Deucher@....com>; Huang, Shimmer
> <Shimmer.Huang@....com>; oleksandr@...alenko.name; Du, Xiaojian
> <Xiaojian.Du@....com>; Meng, Li (Jassmine) <Li.Meng@....com>; linux-
> pm@...r.kernel.org; linux-kernel@...r.kernel.org
> Subject: [PATCH v9 1/8] cpufreq: amd-pstate: Document *_limit_* fields in
> struct amd_cpudata
>
> From: "Gautham R. Shenoy" <gautham.shenoy@....com>
>
> The four fields of struct cpudata namely min_limit_perf, max_limit_perf,
> min_limit_freq, max_limit_freq introduced in the commit
> febab20caeba("cpufreq/amd-pstate: Fix scaling_min_freq and
> scaling_max_freq update") are currently undocumented
>
> Add comments describing these fields
>
> Fixes: febab20caeba("cpufreq/amd-pstate: Fix scaling_min_freq and
> scaling_max_freq update")
> Signed-off-by: Gautham R. Shenoy <gautham.shenoy@....com>
> Signed-off-by: Perry Yuan <perry.yuan@....com>
> ---
>  include/linux/amd-pstate.h | 4 ++++
>  1 file changed, 4 insertions(+)
>
> diff --git a/include/linux/amd-pstate.h b/include/linux/amd-pstate.h index
> d21838835abd..212f377d615b 100644
> --- a/include/linux/amd-pstate.h
> +++ b/include/linux/amd-pstate.h
> @@ -49,6 +49,10 @@ struct amd_aperf_mperf {
>   * @lowest_perf: the absolute lowest performance level of the processor
>   * @prefcore_ranking: the preferred core ranking, the higher value indicates
> a higher
>   *             priority.
> + * @min_limit_perf: Cached value of the perf corresponding to
> + policy->min
> + * @max_limit_perf: Cached value of the perf corresponding to
> + policy->max
> + * @min_limit_freq: Cached value of policy->min
> + * @max_limit_freq: Cached value of policy->max
>   * @max_freq: the frequency that mapped to highest_perf
>   * @min_freq: the frequency that mapped to lowest_perf
>   * @nominal_freq: the frequency that mapped to nominal_perf
> --
> 2.34.1
[Meng, Li (Jassmine)]
Reviewed-by: Li Meng < li.meng@....com>

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