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References: <20200318011144.91532-1-atish.patra@wdc.com> <20200318011144.91532-5-atish.patra@wdc.com>
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From:   Bin Meng <bmeng.cn@gmail.com>
Date:   Sun, 5 Apr 2020 22:37:03 +0800
Message-ID: <CAEUhbmUN4rkJA+KZQN1n=VFhC5=QX-DsfjEun6_HGR6WL3WgpQ@mail.gmail.com>
Subject: Re: [PATCH v11 04/11] RISC-V: Introduce a new config for SBI v0.1
To:     Atish Patra <atish.patra@wdc.com>
Cc:     linux-kernel <linux-kernel@vger.kernel.org>,
        Anup Patel <anup@brainfault.org>,
        Albert Ou <aou@eecs.berkeley.edu>, Gary Guo <gary@garyguo.net>,
        Greentime Hu <greentime.hu@sifive.com>,
        linux-riscv <linux-riscv@lists.infradead.org>,
        Mao Han <han_mao@c-sky.com>,
        Mike Rapoport <rppt@linux.ibm.com>,
        Nick Hu <nickhu@andestech.com>,
        Palmer Dabbelt <palmer@dabbelt.com>,
        Paul Walmsley <paul.walmsley@sifive.com>,
        Thomas Gleixner <tglx@linutronix.de>,
        Vincent Chen <vincent.chen@sifive.com>,
        Zong Li <zong.li@sifive.com>
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On Wed, Mar 18, 2020 at 9:11 AM Atish Patra <atish.patra@wdc.com> wrote:
>
> We now have SBI v0.2 which is more scalable and extendable to handle
> future needs for RISC-V supervisor interfaces.
>
> Introduce a new config and move all SBI v0.1 code under that config.
> This allows to implement the new replacement SBI extensions cleanly
> and remove v0.1 extensions easily in future. Currently, the config
> is enabled by default. Once all M-mode software, with v0.1, is no
> longer in use, this config option and all relevant code can be easily
> removed.
>
> Signed-off-by: Atish Patra <atish.patra@wdc.com>
> Reviewed-by: Anup Patel <anup@brainfault.org>
> ---
>  arch/riscv/Kconfig           |   7 ++
>  arch/riscv/include/asm/sbi.h |   2 +
>  arch/riscv/kernel/sbi.c      | 132 +++++++++++++++++++++++++++++------
>  3 files changed, 118 insertions(+), 23 deletions(-)
>

Reviewed-by: Bin Meng <bmeng.cn@gmail.com>