linux-kernel - Re: [PATCH v1 1/6] cpufreq: intel_pstate: Fold intel_pstate_max_within

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Date: Mon, 01 Apr 2024 13:06:42 -0700
From: srinivas pandruvada <srinivas.pandruvada@...ux.intel.com>
To: "Rafael J. Wysocki" <rjw@...ysocki.net>, Linux PM
 <linux-pm@...r.kernel.org>
Cc: LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v1 1/6] cpufreq: intel_pstate: Fold
 intel_pstate_max_within_limits() into caller

On Mon, 2024-03-25 at 18:01 +0100, Rafael J. Wysocki wrote:
> From: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
> 
> Fold intel_pstate_max_within_limits() into its only caller.
> 
> No functional impact.
> 
> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>

> ---
>  drivers/cpufreq/intel_pstate.c |   13 ++++---------
>  1 file changed, 4 insertions(+), 9 deletions(-)
> 
> Index: linux-pm/drivers/cpufreq/intel_pstate.c
> ===================================================================
> --- linux-pm.orig/drivers/cpufreq/intel_pstate.c
> +++ linux-pm/drivers/cpufreq/intel_pstate.c
> @@ -2012,14 +2012,6 @@ static void intel_pstate_set_min_pstate(
>         intel_pstate_set_pstate(cpu, cpu->pstate.min_pstate);
>  }
>  
> -static void intel_pstate_max_within_limits(struct cpudata *cpu)
> -{
> -       int pstate = max(cpu->pstate.min_pstate, cpu-
> >max_perf_ratio);
> -
> -       update_turbo_state();
> -       intel_pstate_set_pstate(cpu, pstate);
> -}
> -
>  static void intel_pstate_get_cpu_pstates(struct cpudata *cpu)
>  {
>         int perf_ctl_max_phys = pstate_funcs.get_max_physical(cpu-
> >cpu);
> @@ -2594,12 +2586,15 @@ static int intel_pstate_set_policy(struc
>         intel_pstate_update_perf_limits(cpu, policy->min, policy-
> >max);
>  
>         if (cpu->policy == CPUFREQ_POLICY_PERFORMANCE) {
> +               int pstate = max(cpu->pstate.min_pstate, cpu-
> >max_perf_ratio);
> +
>                 /*
>                  * NOHZ_FULL CPUs need this as the governor callback
> may not
>                  * be invoked on them.
>                  */
>                 intel_pstate_clear_update_util_hook(policy->cpu);
> -               intel_pstate_max_within_limits(cpu);
> +               update_turbo_state();
> +               intel_pstate_set_pstate(cpu, pstate);
>         } else {
>                 intel_pstate_set_update_util_hook(policy->cpu);
>         }
> 
> 
>