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[59.124.168.89]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-1f9eb321d4esm79472325ad.67.2024.06.25.04.46.59 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 25 Jun 2024 04:47:01 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sifive.com; s=google; t=1719316021; x=1719920821; darn=nongnu.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=i3sU1P3Bi7Bp0EOiBgadVjj6g4xG1ocNLTAeQdyId9c=; b=CTFN2GNi8Yc84TRiCccNh9jQlVImk0Fp0qqwyICe39zVGz/HJm/5sAISv67ftbeIG2 3e1f2YMKeYRvk2Pph41arbAPSocsK2lkYsPgk7nKUDaUTTHqiRH6WoxTJGNzxDU6d2We INIhOXuiUnByZGwXym6B3gQ1z8O97af5gbzoYpk+P2nppGDcRuzaCIOhJNvvty1J4hfE Chdsc4yOhnFEAiBdjkNcd/j7UGGMH2WpfuE4UUv39/FyHU6PmnrTjzAeT5oj4hgDmHlW RDbEyw8LtcUFjrbt+h68MF6U8MM4aRL2g/asrsTjPrTh/ON/X3pjLZ8w6a9H4f+Cbg3c M35g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1719316021; x=1719920821; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=i3sU1P3Bi7Bp0EOiBgadVjj6g4xG1ocNLTAeQdyId9c=; b=O+fNI7dbUgbqwdJKNog9r1YTDWacstCtERL4paS9ATje5tvnYSu1YZZhYw0tOO/YDQ be2KrLXjsYbyil3js1X6ln677mByK89vvt6tGg2JGbWgll2QOiVS3NZJI3nzP4sFpowL JiM0xaPm6ud3cxzDIvv64IurRy8MZ3l/nxaQXevF6PDoqW6jsGwRoarGDPxyQWj7GWwi Q4GM+IzgDqRNYmNIZ+zT6vlBPzKG4PeV4EOVduLa49VxZ7BvtYiInmMm3IxTD3p1MioH eT/Af1hMQWiganJjS7MNmqsZfaa69J+9GF1ni7YLTIAhuhzSI67fY3+vE8JK5nFe73O5 azLA== X-Gm-Message-State: AOJu0Yxlg8qVS0jxOsF/6nDs7IvTod7y0HHJV907hVUFZCId4YEntQ+o 3He1eJdlU0UfSdD03XRghl9gC2jZMowd7ugBKOuQrXHL+INHrFnxLxl4oaZwsur7IZyG20VuA80 Ng7Uv5sypSpS3N+gSHEPtgQ/MO7Qfzb2TfJYnbqfcpYvHcuKyVeK8zO6OvB9h1N1DA3kVWw5jo0 M7VfBOQUkiyoUDDr0Btt8v6ohPAyOWJg9x4p+fjX44sqJP X-Google-Smtp-Source: AGHT+IFi3LEOZRrUQ6uJUwacub3AD+Z7K94Gvpu/nQAIEGG16LbV9EN9T6AQb6UJDIB3NoJz8UjeoQ== X-Received: by 2002:a17:902:d2c5:b0:1fa:2e45:bcb8 with SMTP id d9443c01a7336-1fa2e45bd32mr76106865ad.2.1719316021414; Tue, 25 Jun 2024 04:47:01 -0700 (PDT) From: frank.chang@sifive.com To: qemu-devel@nongnu.org Cc: Palmer Dabbelt , Alistair Francis , Bin Meng , Weiwei Li , Daniel Henrique Barboza , Liu Zhiwei , qemu-riscv@nongnu.org (open list:RISC-V TCG CPUs), Frank Chang , Jerry Zhang Jian , Max Chou Subject: [PATCH v3 5/6] target/riscv: Add Zc extension implied rule Date: Tue, 25 Jun 2024 19:46:28 +0800 Message-ID: <20240625114629.27793-6-frank.chang@sifive.com> X-Mailer: git-send-email 2.43.2 In-Reply-To: <20240625114629.27793-1-frank.chang@sifive.com> References: <20240625114629.27793-1-frank.chang@sifive.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer2=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2607:f8b0:4864:20::62c; envelope-from=frank.chang@sifive.com; helo=mail-pl1-x62c.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, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@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-devel-bounces+importer2=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer2=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @sifive.com) X-ZM-MESSAGEID: 1719316104426100007 Content-Type: text/plain; charset="utf-8" From: Frank Chang Zc extension has special implied rules that need to be handled separately. Signed-off-by: Frank Chang Reviewed-by: Jerry Zhang Jian Tested-by: Max Chou Reviewed-by: Daniel Henrique Barboza --- target/riscv/tcg/tcg-cpu.c | 34 ++++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) diff --git a/target/riscv/tcg/tcg-cpu.c b/target/riscv/tcg/tcg-cpu.c index 1a3aef5bff..ccca9037ed 100644 --- a/target/riscv/tcg/tcg-cpu.c +++ b/target/riscv/tcg/tcg-cpu.c @@ -925,11 +925,45 @@ static void cpu_enable_implied_rule(RISCVCPU *cpu, } } =20 +/* Zc extension has special implied rules that need to be handled separate= ly. */ +static void cpu_enable_zc_implied_rules(RISCVCPU *cpu) +{ + RISCVCPUClass *mcc =3D RISCV_CPU_GET_CLASS(cpu); + CPURISCVState *env =3D &cpu->env; + + if (cpu->cfg.ext_zce) { + cpu_cfg_ext_auto_update(cpu, CPU_CFG_OFFSET(ext_zca), true); + cpu_cfg_ext_auto_update(cpu, CPU_CFG_OFFSET(ext_zcb), true); + cpu_cfg_ext_auto_update(cpu, CPU_CFG_OFFSET(ext_zcmp), true); + cpu_cfg_ext_auto_update(cpu, CPU_CFG_OFFSET(ext_zcmt), true); + + if (riscv_has_ext(env, RVF) && mcc->misa_mxl_max =3D=3D MXL_RV32) { + cpu_cfg_ext_auto_update(cpu, CPU_CFG_OFFSET(ext_zcf), true); + } + } + + /* Zca, Zcd and Zcf has a PRIV 1.12.0 restriction */ + if (riscv_has_ext(env, RVC) && env->priv_ver >=3D PRIV_VERSION_1_12_0)= { + cpu_cfg_ext_auto_update(cpu, CPU_CFG_OFFSET(ext_zca), true); + + if (riscv_has_ext(env, RVF) && mcc->misa_mxl_max =3D=3D MXL_RV32) { + cpu_cfg_ext_auto_update(cpu, CPU_CFG_OFFSET(ext_zcf), true); + } + + if (riscv_has_ext(env, RVD)) { + cpu_cfg_ext_auto_update(cpu, CPU_CFG_OFFSET(ext_zcd), true); + } + } +} + static void riscv_cpu_enable_implied_rules(RISCVCPU *cpu) { RISCVCPUImpliedExtsRule *rule; int i; =20 + /* Enable the implied extensions for Zc. */ + cpu_enable_zc_implied_rules(cpu); + /* Enable the implied MISAs. */ for (i =3D 0; (rule =3D riscv_misa_ext_implied_rules[i]); i++) { if (riscv_has_ext(&cpu->env, rule->ext)) { --=20 2.43.2