Hi Rafael,

Thank you.

On 2020.07.13 06:59 Rafael J. Wysocki wrote:
> 
> From: Rafael J. Wysocki <[email protected]>
> 
> If intel_pstate starts in the passive mode by default (that happens
> when the processor in the system doesn't support HWP), passing
> intel_pstate=active in the kernel command line doesn't work, so
> fix that.
> 
> Fixes: 33aa46f252c7 ("cpufreq: intel_pstate: Use passive mode by default 
> without HWP")
> Reported-by: Doug Smythies <[email protected]>
> Signed-off-by: Rafael J. Wysocki <[email protected]>

Acked-by: Doug Smythies <[email protected]>

> ---
>  drivers/cpufreq/intel_pstate.c |    8 ++++++--
>  1 file changed, 6 insertions(+), 2 deletions(-)
> 
> Index: linux-pm/drivers/cpufreq/intel_pstate.c
> ===================================================================
> --- linux-pm.orig/drivers/cpufreq/intel_pstate.c
> +++ linux-pm/drivers/cpufreq/intel_pstate.c
> @@ -2534,7 +2534,7 @@ static struct cpufreq_driver intel_cpufr
>       .name           = "intel_cpufreq",
>  };
> 
> -static struct cpufreq_driver *default_driver = &intel_pstate;
> +static struct cpufreq_driver *default_driver;
> 
>  static void intel_pstate_driver_cleanup(void)
>  {
> @@ -2828,6 +2828,7 @@ static int __init intel_pstate_init(void
>                       hwp_active++;
>                       hwp_mode_bdw = id->driver_data;
>                       intel_pstate.attr = hwp_cpufreq_attrs;
> +                     default_driver = &intel_pstate;
>                       goto hwp_cpu_matched;
>               }
>       } else {
> @@ -2845,7 +2846,8 @@ static int __init intel_pstate_init(void
>               return -ENODEV;
>       }
>       /* Without HWP start in the passive mode. */
> -     default_driver = &intel_cpufreq;
> +     if (!default_driver)
> +             default_driver = &intel_cpufreq;
> 
>  hwp_cpu_matched:
>       /*
> @@ -2899,6 +2901,8 @@ static int __init intel_pstate_setup(cha
> 
>       if (!strcmp(str, "disable")) {
>               no_load = 1;
> +     } else if (!strcmp(str, "active")) {
> +             default_driver = &intel_pstate;
>       } else if (!strcmp(str, "passive")) {
>               default_driver = &intel_cpufreq;
>               no_hwp = 1;
> 


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