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Date:   Tue, 2 Nov 2021 06:58:57 +0100
From:   Christoph Hellwig <hch@lst.de>
To:     Guo Ren <guoren@kernel.org>
Cc:     Palmer Dabbelt <palmerdabbelt@google.com>,
        Wei Fu <wefu@redhat.com>, Anup Patel <Anup.Patel@wdc.com>,
        Atish Patra <Atish.Patra@wdc.com>,
        Christoph =?iso-8859-1?Q?M=FCllner?= 
        <christoph.muellner@vrull.eu>,
        Philipp Tomsich <philipp.tomsich@vrull.eu>,
        Christoph Hellwig <hch@lst.de>,
        liush <liush@allwinnertech.com>,
        Wei Wu =?utf-8?B?KOWQtOS8nyk=?= <lazyparser@gmail.com>,
        Drew Fustini <drew@beagleboard.org>,
        linux-riscv <linux-riscv@lists.infradead.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        taiten.peng@canonical.com,
        Aniket Ponkshe <aniket.ponkshe@canonical.com>,
        Heinrich Schuchardt <heinrich.schuchardt@canonical.com>,
        Gordan Markus <gordan.markus@canonical.com>,
        Guo Ren <guoren@linux.alibaba.com>,
        Arnd Bergmann <arnd@arndb.de>, Chen-Yu Tsai <wens@csie.org>,
        Maxime Ripard <maxime@cerno.tech>,
        Daniel Lustig <dlustig@nvidia.com>,
        Greg Favor <gfavor@ventanamicro.com>,
        Andrea Mondelli <andrea.mondelli@huawei.com>,
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        "Xinhaoqu (Freddie)" <xinhaoqu@huawei.com>,
        Bill Huffman <huffman@cadence.com>,
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        Allen Baum <allen.baum@esperantotech.com>,
        Josh Scheid <jscheid@ventanamicro.com>,
        Richard Trauben <rtrauben@gmail.com>
Subject: Re: [RESEND PATCH V3 0/2] riscv: add RISC-V Svpbmt Standard
 Extension supports
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On Tue, Nov 02, 2021 at 10:07:58AM +0800, Guo Ren wrote:
> 
> To separate MMU & no-MMU clearly, I suggest fuwei add
> #if defined(CONFIG_64BIT) && defined(CONFIG_MMU)

Actually - for documentation purposes a new CONFIG_RISCV_SVPBMT that
depends on 64BIT && MMU would probably much better as it clearly
documents the intent here.