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[95.216.173.148]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-77607b34790sm2762616b3a.81.2025.09.11.11.45.53 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 11 Sep 2025 11:46:00 -0700 (PDT) From: Han Gao To: devicetree@vger.kernel.org, Drew Fustini , Guo Ren , Fu Wei , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Ghiti , Han Gao Cc: linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, Han Gao Subject: [PATCH 1/3] riscv: dts: thead: add xtheadvector to the th1520 devicetree Date: Fri, 12 Sep 2025 02:45:26 +0800 Message-ID: <20250911184528.1512543-2-rabenda.cn@gmail.com> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20250911184528.1512543-1-rabenda.cn@gmail.com> References: <20250911184528.1512543-1-rabenda.cn@gmail.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250911_114602_014182_F0AB8A0C X-CRM114-Status: GOOD ( 10.67 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org The th1520 support xtheadvector [1] so it can be included in the devicetree. Also include vlenb for the cpu. And set vlenb=16 [2]. This can be tested by passing the "mitigations=off" kernel parameter. Link: https://lore.kernel.org/linux-riscv/20241113-xtheadvector-v11-4-236c22791ef9@rivosinc.com/ [1] Link: https://lore.kernel.org/linux-riscv/aCO44SAoS2kIP61r@ghost/ [2] Signed-off-by: Han Gao Signed-off-by: Han Gao --- arch/riscv/boot/dts/thead/th1520.dtsi | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) diff --git a/arch/riscv/boot/dts/thead/th1520.dtsi b/arch/riscv/boot/dts/thead/th1520.dtsi index 42724bf7e90e..59d1927764a6 100644 --- a/arch/riscv/boot/dts/thead/th1520.dtsi +++ b/arch/riscv/boot/dts/thead/th1520.dtsi @@ -25,7 +25,8 @@ c910_0: cpu@0 { riscv,isa = "rv64imafdc"; riscv,isa-base = "rv64i"; riscv,isa-extensions = "i", "m", "a", "f", "d", "c", "zicntr", "zicsr", - "zifencei", "zihpm"; + "zifencei", "zihpm", "xtheadvector"; + thead,vlenb = <16>; reg = <0>; i-cache-block-size = <64>; i-cache-size = <65536>; @@ -49,7 +50,8 @@ c910_1: cpu@1 { riscv,isa = "rv64imafdc"; riscv,isa-base = "rv64i"; riscv,isa-extensions = "i", "m", "a", "f", "d", "c", "zicntr", "zicsr", - "zifencei", "zihpm"; + "zifencei", "zihpm", "xtheadvector"; + thead,vlenb = <16>; reg = <1>; i-cache-block-size = <64>; i-cache-size = <65536>; @@ -73,7 +75,8 @@ c910_2: cpu@2 { riscv,isa = "rv64imafdc"; riscv,isa-base = "rv64i"; riscv,isa-extensions = "i", "m", "a", "f", "d", "c", "zicntr", "zicsr", - "zifencei", "zihpm"; + "zifencei", "zihpm", "xtheadvector"; + thead,vlenb = <16>; reg = <2>; i-cache-block-size = <64>; i-cache-size = <65536>; @@ -97,7 +100,8 @@ c910_3: cpu@3 { riscv,isa = "rv64imafdc"; riscv,isa-base = "rv64i"; riscv,isa-extensions = "i", "m", "a", "f", "d", "c", "zicntr", "zicsr", - "zifencei", "zihpm"; + "zifencei", "zihpm", "xtheadvector"; + thead,vlenb = <16>; reg = <3>; i-cache-block-size = <64>; i-cache-size = <65536>; -- 2.47.3 _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv