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References: <20230606095641.5357-1-TonyWWang-oc@zhaoxin.com>
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From:   "Rafael J. Wysocki" <rafael@kernel.org>
Date:   Mon, 12 Jun 2023 19:26:53 +0200
Message-ID: <CAJZ5v0h539BYRN53perdsRViUqU2YG96abRuB2xpTHqYKfFvkw@mail.gmail.com>
Subject: Re: [PATCH] ACPI: acpi_pad: mark Zhaoxin CPUs NONSTOP TSC correctly
To:     Tony W Wang-oc <TonyWWang-oc@zhaoxin.com>
Cc:     rafael@kernel.org, lenb@kernel.org, linux-acpi@vger.kernel.org,
        linux-kernel@vger.kernel.org, CobeChen@zhaoxin.com,
        TimGuo@zhaoxin.com, LeoLiu-oc@zhaoxin.com
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On Tue, Jun 6, 2023 at 11:56 AM Tony W Wang-oc <TonyWWang-oc@zhaoxin.com> wrote:
>
> Zhaoxin CPUs support NONSTOP TSC feature, so do not mark these CPUs
> TSC unstable when use the acpi_pad driver.
>
> Signed-off-by: Tony W Wang-oc <TonyWWang-oc@zhaoxin.com>
> ---
>  drivers/acpi/acpi_pad.c | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/drivers/acpi/acpi_pad.c b/drivers/acpi/acpi_pad.c
> index 02f1a1b1143c..7a453c5ff303 100644
> --- a/drivers/acpi/acpi_pad.c
> +++ b/drivers/acpi/acpi_pad.c
> @@ -66,6 +66,7 @@ static void power_saving_mwait_init(void)
>         case X86_VENDOR_AMD:
>         case X86_VENDOR_INTEL:
>         case X86_VENDOR_ZHAOXIN:
> +       case X86_VENDOR_CENTAUR:
>                 /*
>                  * AMD Fam10h TSC will tick in all
>                  * C/P/S0/S1 states when this bit is set.
> --

Applied as 6.5 material, thanks!