Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.31 as permitted sender) client-ip=23.128.96.31;
Date:   Wed, 27 Sep 2023 08:16:47 +0100
From:   Matthew Wilcox <willy@infradead.org>
To:     Yong-Xuan Wang <yongxuan.wang@sifive.com>
Cc:     linux-riscv@lists.infradead.org, kvm-riscv@lists.infradead.org,
        greentime.hu@sifive.com, vincent.chen@sifive.com, tjytimi@163.com,
        alex@ghiti.fr, Paul Walmsley <paul.walmsley@sifive.com>,
        Palmer Dabbelt <palmer@dabbelt.com>,
        Albert Ou <aou@eecs.berkeley.edu>,
        Anup Patel <apatel@ventanamicro.com>,
        Guo Ren <guoren@kernel.org>,
        Andrew Jones <ajones@ventanamicro.com>,
        Conor Dooley <conor.dooley@microchip.com>,
        Daniel Henrique Barboza <dbarboza@ventanamicro.com>,
        wchen <waylingii@gmail.com>, Heiko Stuebner <heiko@sntech.de>,
        Jisheng Zhang <jszhang@kernel.org>,
        Andrew Morton <akpm@linux-foundation.org>,
        Alexandre Ghiti <alexghiti@rivosinc.com>,
        Kemeng Shi <shikemeng@huaweicloud.com>,
        Charlie Jenkins <charlie@rivosinc.com>,
        Sergey Matyukevich <sergey.matyukevich@syntacore.com>,
        David Hildenbrand <david@redhat.com>,
        Qinglin Pan <panqinglin2020@iscas.ac.cn>,
        Rick Edgecombe <rick.p.edgecombe@intel.com>,
        Sunil V L <sunilvl@ventanamicro.com>,
        Evan Green <evan@rivosinc.com>, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 1/3] RISC-V: Detect and Enable Svadu Extension Support
Message-ID: <ZRPW3wu6tpKwwunD@casper.infradead.org>
References: <20230922085701.3164-1-yongxuan.wang@sifive.com>
 <20230922085701.3164-2-yongxuan.wang@sifive.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <20230922085701.3164-2-yongxuan.wang@sifive.com>
Precedence: bulk

On Fri, Sep 22, 2023 at 08:56:47AM +0000, Yong-Xuan Wang wrote:
> We detect Svadu extension support from DTB and add arch_has_hw_pte_young()
> to enable optimization in MGLRU and __wp_page_copy_user() if Svadu
> extension is available.

If you're going to cc people outside the RiscV space, you should probably
explain what Svadu is.  To me, it sounds like a Great Old One, maybe a
friend of Cthulhu?