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[114.35.142.126]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-772306a1870sm26823834b3a.75.2025.09.07.19.51.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 07 Sep 2025 19:51:26 -0700 (PDT) From: Max Chou To: qemu-devel@nongnu.org, qemu-riscv@nongnu.org Cc: Palmer Dabbelt , Alistair Francis , Weiwei Li , Daniel Henrique Barboza , Liu Zhiwei , richard.henderson@linaro.org, Max Chou Subject: [RFC PATCH v4 1/3] target/riscv: Add Zvqdotq cfg property Date: Mon, 8 Sep 2025 10:51:15 +0800 Message-ID: <20250908025117.1728895-2-max.chou@sifive.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250908025117.1728895-1-max.chou@sifive.com> References: <20250908025117.1728895-1-max.chou@sifive.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2607:f8b0:4864:20::432; envelope-from=max.chou@sifive.com; helo=mail-pf1-x432.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-riscv@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-riscv-bounces+qemu-riscv=archiver.kernel.org@nongnu.org Sender: qemu-riscv-bounces+qemu-riscv=archiver.kernel.org@nongnu.org The Zvqdotq extension is the vector dot-product extension of RISC-V. Signed-off-by: Max Chou --- target/riscv/cpu.c | 1 + target/riscv/cpu_cfg_fields.h.inc | 1 + target/riscv/tcg/tcg-cpu.c | 5 +++++ 3 files changed, 7 insertions(+) diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c index d055ddf462..d0909f7beb 100644 --- a/target/riscv/cpu.c +++ b/target/riscv/cpu.c @@ -187,6 +187,7 @@ const RISCVIsaExtData isa_edata_arr[] = { ISA_EXT_DATA_ENTRY(zvksg, PRIV_VERSION_1_12_0, ext_zvksg), ISA_EXT_DATA_ENTRY(zvksh, PRIV_VERSION_1_12_0, ext_zvksh), ISA_EXT_DATA_ENTRY(zvkt, PRIV_VERSION_1_12_0, ext_zvkt), + ISA_EXT_DATA_ENTRY(zvqdotq, PRIV_VERSION_1_13_0, ext_zvqdotq), ISA_EXT_DATA_ENTRY(zhinx, PRIV_VERSION_1_12_0, ext_zhinx), ISA_EXT_DATA_ENTRY(zhinxmin, PRIV_VERSION_1_12_0, ext_zhinxmin), ISA_EXT_DATA_ENTRY(sdtrig, PRIV_VERSION_1_12_0, debug), diff --git a/target/riscv/cpu_cfg_fields.h.inc b/target/riscv/cpu_cfg_fields.h.inc index e2d116f0df..5da59c22d6 100644 --- a/target/riscv/cpu_cfg_fields.h.inc +++ b/target/riscv/cpu_cfg_fields.h.inc @@ -100,6 +100,7 @@ BOOL_FIELD(ext_zvfbfmin) BOOL_FIELD(ext_zvfbfwma) BOOL_FIELD(ext_zvfh) BOOL_FIELD(ext_zvfhmin) +BOOL_FIELD(ext_zvqdotq) BOOL_FIELD(ext_smaia) BOOL_FIELD(ext_ssaia) BOOL_FIELD(ext_smctr) diff --git a/target/riscv/tcg/tcg-cpu.c b/target/riscv/tcg/tcg-cpu.c index 78fb279184..7015370ab0 100644 --- a/target/riscv/tcg/tcg-cpu.c +++ b/target/riscv/tcg/tcg-cpu.c @@ -767,6 +767,11 @@ void riscv_cpu_validate_set_extensions(RISCVCPU *cpu, Error **errp) return; } + if (cpu->cfg.ext_zvqdotq && !cpu->cfg.ext_zve32x) { + error_setg(errp, "Zvqdotq extension requires V or Zve* extensions"); + return; + } + if ((cpu->cfg.ext_zvbc || cpu->cfg.ext_zvknhb) && !cpu->cfg.ext_zve64x) { error_setg( errp, -- 2.39.3