linux-kernel - Re: [PATCH] intel_idle: Add ICL support

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Message-ID: <CAJZ5v0i8XUF39Vv=EM4TgyXgK6zHniZW3tGYFPweO3kg+BrxOQ@mail.gmail.com>
Date:   Wed, 26 Aug 2020 14:43:18 +0200
From:   "Rafael J. Wysocki" <rafael@...nel.org>
To:     Guilhem Lettron <guilhem@...pilot.io>
Cc:     Jacob Pan <jacob.jun.pan@...ux.intel.com>,
        Len Brown <lenb@...nel.org>,
        Linux PM <linux-pm@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] intel_idle: Add ICL support

On Wed, Aug 26, 2020 at 2:05 PM Guilhem Lettron <guilhem@...pilot.io> wrote:
>
> Use the same C-states as SKL

Why is this change needed?

> Signed-off-by: Guilhem Lettron <guilhem@...pilot.io>
> ---
>  drivers/idle/intel_idle.c | 2 ++
>  1 file changed, 2 insertions(+)
>
> diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c
> index 8e0fb1a5bdbd..1bb539f09a4f 100644
> --- a/drivers/idle/intel_idle.c
> +++ b/drivers/idle/intel_idle.c
> @@ -1145,6 +1145,8 @@ static const struct x86_cpu_id intel_idle_ids[] __initconst = {
>         X86_MATCH_INTEL_FAM6_MODEL(KABYLAKE_L,          &idle_cpu_skl),
>         X86_MATCH_INTEL_FAM6_MODEL(KABYLAKE,            &idle_cpu_skl),
>         X86_MATCH_INTEL_FAM6_MODEL(SKYLAKE_X,           &idle_cpu_skx),
> +       X86_MATCH_INTEL_FAM6_MODEL(ICELAKE,             &idle_cpu_skl),
> +       X86_MATCH_INTEL_FAM6_MODEL(ICELAKE_L,           &idle_cpu_skl),
>         X86_MATCH_INTEL_FAM6_MODEL(ICELAKE_X,           &idle_cpu_icx),
>         X86_MATCH_INTEL_FAM6_MODEL(XEON_PHI_KNL,        &idle_cpu_knl),
>         X86_MATCH_INTEL_FAM6_MODEL(XEON_PHI_KNM,        &idle_cpu_knl),
> --
> 2.27.0
>