linux-kernel - Re: [PATCH v9 01/12] riscv: integrate alternatives better into the main architecture

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Date:   Wed, 13 Apr 2022 11:05:17 +0200
From:   Philipp Tomsich <philipp.tomsich@...ll.eu>
To:     Heiko Stuebner <heiko@...ech.de>
Cc:     palmer@...belt.com, paul.walmsley@...ive.com,
        aou@...s.berkeley.edu, linux-riscv@...ts.infradead.org,
        linux-kernel@...r.kernel.org, wefu@...hat.com,
        liush@...winnertech.com, guoren@...nel.org, atishp@...shpatra.org,
        anup@...infault.org, drew@...gleboard.org, hch@....de,
        arnd@...db.de, wens@...e.org, maxime@...no.tech,
        gfavor@...tanamicro.com, andrea.mondelli@...wei.com,
        behrensj@....edu, xinhaoqu@...wei.com, mick@....forth.gr,
        allen.baum@...erantotech.com, jscheid@...tanamicro.com,
        rtrauben@...il.com, samuel@...lland.org, cmuellner@...ux.com
Subject: Re: [PATCH v9 01/12] riscv: integrate alternatives better into the
 main architecture

On Wed, 13 Apr 2022 at 05:04, Heiko Stuebner <heiko@...ech.de> wrote:
>
> Right now the alternatives need to be explicitly enabled and
> erratas are limited to SiFive ones.
>
> We want to use alternatives not only for patching soc erratas,
> but in the future also for handling different behaviour depending
> on the existence of future extensions.
>
> So move the core alternatives over to the kernel subdirectory
> and move the CONFIG_RISCV_ALTERNATIVE to be a hidden symbol
> which we expect relevant erratas and extensions to just select
> if needed.
>
> Signed-off-by: Heiko Stuebner <heiko@...ech.de>

Reviewed-by: Philipp Tomsich <philipp.tomsich@...ll.eu>