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

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Message-ID: <CAJZ5v0jSbR9VPK1Srht2aDB+zphjjFC_=pb_Y3nc++5v9tr2-w@mail.gmail.com>
Date:   Thu, 19 Jan 2023 14:26:32 +0100
From:   "Rafael J. Wysocki" <rafael@...nel.org>
To:     Álvaro Fernández Rojas <noltari@...il.com>,
        "Zhang, Rui" <rui.zhang@...el.com>,
        Artem Bityutskiy <artem.bityutskiy@...ux.intel.com>
Cc:     jacob.jun.pan@...ux.intel.com, lenb@...nel.org,
        linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] intel_idle: Add RaptorLake support

On Thu, Jan 19, 2023 at 8:02 AM Álvaro Fernández Rojas
<noltari@...il.com> wrote:
>
> This patch adds RaptorLake support to the intel_idle driver.
>
> Since RaptorLake and AlderLake C-state are characteristics the same, we use
> AlderLake C-states tables for RaptorLake as well.
>
> Signed-off-by: Álvaro Fernández Rojas <noltari@...il.com>

Rui, Artem, what do you think?

> ---
>  drivers/idle/intel_idle.c | 6 ++++++
>  1 file changed, 6 insertions(+)
>
> diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c
> index cfeb24d40d37..1a35b98d9bae 100644
> --- a/drivers/idle/intel_idle.c
> +++ b/drivers/idle/intel_idle.c
> @@ -1429,6 +1429,9 @@ static const struct x86_cpu_id intel_idle_ids[] __initconst = {
>         X86_MATCH_INTEL_FAM6_MODEL(ALDERLAKE,           &idle_cpu_adl),
>         X86_MATCH_INTEL_FAM6_MODEL(ALDERLAKE_L,         &idle_cpu_adl_l),
>         X86_MATCH_INTEL_FAM6_MODEL(ALDERLAKE_N,         &idle_cpu_adl_n),
> +       X86_MATCH_INTEL_FAM6_MODEL(RAPTORLAKE,          &idle_cpu_adl),
> +       X86_MATCH_INTEL_FAM6_MODEL(RAPTORLAKE_P,        &idle_cpu_adl_n),
> +       X86_MATCH_INTEL_FAM6_MODEL(RAPTORLAKE_S,        &idle_cpu_adl),
>         X86_MATCH_INTEL_FAM6_MODEL(SAPPHIRERAPIDS_X,    &idle_cpu_spr),
>         X86_MATCH_INTEL_FAM6_MODEL(XEON_PHI_KNL,        &idle_cpu_knl),
>         X86_MATCH_INTEL_FAM6_MODEL(XEON_PHI_KNM,        &idle_cpu_knl),
> @@ -1867,6 +1870,9 @@ static void __init intel_idle_init_cstates_icpu(struct cpuidle_driver *drv)
>         case INTEL_FAM6_ALDERLAKE:
>         case INTEL_FAM6_ALDERLAKE_L:
>         case INTEL_FAM6_ALDERLAKE_N:
> +       case INTEL_FAM6_RAPTORLAKE:
> +       case INTEL_FAM6_RAPTORLAKE_P:
> +       case INTEL_FAM6_RAPTORLAKE_S:
>                 adl_idle_state_table_update();
>                 break;
>         }
> --
> 2.34.1
>