linux-kernel - Re: [PATCH v2 2/5] riscv: Improve description for RISCV_ISA

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Message-ID: <CAJF2gTTSd-XJiSQcS=dY5YTSL_V4wJQb+e7yRywNsrTfLstQfA@mail.gmail.com>
Date:   Fri, 27 May 2022 10:51:47 +0800
From:   Guo Ren <guoren@...nel.org>
To:     Heiko Stuebner <heiko@...ech.de>
Cc:     Palmer Dabbelt <palmer@...belt.com>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        linux-riscv <linux-riscv@...ts.infradead.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Wei Fu <wefu@...hat.com>, Nick Kossifidis <mick@....forth.gr>,
        Samuel Holland <samuel@...lland.org>,
        Christoph Muellner <cmuellner@...ux.com>,
        Philipp Tomsich <philipp.tomsich@...ll.eu>,
        Christoph Hellwig <hch@....de>
Subject: Re: [PATCH v2 2/5] riscv: Improve description for RISCV_ISA_SVPBMT
 Kconfig symbol

Reviewed-by: Guo Ren <guoren@...nel.org>

On Fri, May 27, 2022 at 4:57 AM Heiko Stuebner <heiko@...ech.de> wrote:
>
> This improves the symbol's description to make it easier for
> people to understand what it is about.
>
> Suggested-by: Christoph Hellwig <hch@....de>
> Suggested-by: Philipp Tomsich <philipp.tomsich@...ll.eu>
> Signed-off-by: Heiko Stuebner <heiko@...ech.de>
> ---
>  arch/riscv/Kconfig | 9 +++++++--
>  1 file changed, 7 insertions(+), 2 deletions(-)
>
> diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
> index 65285b980134..a4b299ad4473 100644
> --- a/arch/riscv/Kconfig
> +++ b/arch/riscv/Kconfig
> @@ -356,8 +356,13 @@ config RISCV_ISA_SVPBMT
>         select RISCV_ALTERNATIVE
>         default y
>         help
> -          Adds support to dynamically detect the presence of the SVPBMT extension
> -          (Supervisor-mode: page-based memory types) and enable its usage.
> +          Adds support to dynamically detect the presence of the SVPBMT
> +          ISA-extension (Supervisor-mode: page-based memory types) and
> +          enable its usage.
> +
> +          The memory type for a page contains a combination of attributes
> +          that indicate the cacheability, idempotency, and ordering
> +          properties for access to that page.
>
>            The SVPBMT extension is only available on 64Bit cpus.
>
> --
> 2.35.1
>


-- 
Best Regards
 Guo Ren

ML: https://lore.kernel.org/linux-csky/