From nobody Tue Feb 10 16:21:58 2026 Received: from cstnet.cn (smtp21.cstnet.cn [159.226.251.21]) (using TLSv1.2 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4752D29405 for ; Thu, 9 Oct 2025 13:44:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=159.226.251.21 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760017460; cv=none; b=Kmcc7knWHGpRMme3dY0oi+jpiuUUCK+MBYRUHsznK4fR3kYL1WPHEPWcAC1ocLtIZUX5jPsqTbJcQux7eiibzX6oC+McLwpC41UXGlxcIFV16e4aWvAg8RE1kkWi6IqhrNAHKzUeZ9PWBjtosdVRo5dh5M42yPGP6H4ylHUep3k= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760017460; c=relaxed/simple; bh=xygV4hwNU/M8TrSgPSMRkxwCQM8GMirJSFCx6q2zLPk=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=VQzbZzkSJ9PWno3Hir6iflrqcpzEXCS81Gm37pWTtiWGCfGzfbJDFOlA4GjXEZVYFF5+CclDL0aukqEp9LTYSwkrzatPeWWd1wuh+2ZGNZ5WfHsvnIhK7s1yR3oI2bJs8SklsOPEPiGgiqdBFJDFJG8IfGbccOzXgM/ePySPKHw= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=isrc.iscas.ac.cn; spf=pass smtp.mailfrom=isrc.iscas.ac.cn; arc=none smtp.client-ip=159.226.251.21 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=isrc.iscas.ac.cn Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=isrc.iscas.ac.cn Received: from Mobilestation.localdomain (unknown [183.6.60.79]) by APP-01 (Coremail) with SMTP id qwCowACX76EEvOdoFFc_DQ--.1956S4; Thu, 09 Oct 2025 21:43:56 +0800 (CST) From: Yao Zihong To: linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org Cc: ajones@ventanamicro.com, alexghiti@rivosinc.com, shuah@kernel.org, samuel.holland@sifive.com, evan@rivosinc.com, cleger@rivosinc.com, zihong.plct@isrc.iscas.ac.cn, zihongyao@outlook.com, zhangyin2018@iscas.ac.cn, Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Ghiti , Charlie Jenkins , Jesse Taube , Inochi Amaoto , Aleksa Paunovic , =?UTF-8?q?Thomas=20Wei=C3=9Fschuh?= , Yunhui Cui , Nam Cao Subject: [PATCH v2 2/4] riscv: hwprobe: Report Zicbop presence and block size Date: Thu, 9 Oct 2025 21:41:52 +0800 Message-ID: <20251009134318.23040-3-zihong.plct@isrc.iscas.ac.cn> X-Mailer: git-send-email 2.47.2 In-Reply-To: <20251009134318.23040-1-zihong.plct@isrc.iscas.ac.cn> References: <20251009134318.23040-1-zihong.plct@isrc.iscas.ac.cn> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-CM-TRANSID: qwCowACX76EEvOdoFFc_DQ--.1956S4 X-Coremail-Antispam: 1UD129KBjvdXoWruF4DZFW5Aw13KF17Cw4kJFb_yoWkZwc_uw 17Jas8u34UCFW09FWvyw4FkwsIyw4kJa48Ar1ftr1DZF1UAryUXas8Ca47Ww1DZw1DXasx CrWrW39rZ3W2vjkaLaAFLSUrUUUUjb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUIcSsGvfJTRUUUbkkFF20E14v26rWj6s0DM7CY07I20VC2zVCF04k26cxKx2IYs7xG 6rWj6s0DM7CIcVAFz4kK6r1j6r18M28IrcIa0xkI8VA2jI8067AKxVWUXwA2048vs2IY02 0Ec7CjxVAFwI0_Xr0E3s1l8cAvFVAK0II2c7xJM28CjxkF64kEwVA0rcxSw2x7M28EF7xv wVC0I7IYx2IY67AKxVWUJVWUCwA2z4x0Y4vE2Ix0cI8IcVCY1x0267AKxVWxJVW8Jr1l84 ACjcxK6I8E87Iv67AKxVWUJVW8JwA2z4x0Y4vEx4A2jsIEc7CjxVAFwI0_Gr0_Gr1UM2AI xVAIcxkEcVAq07x20xvEncxIr21l5I8CrVACY4xI64kE6c02F40Ex7xfMcIj6xIIjxv20x vE14v26r1j6r18McIj6I8E87Iv67AKxVWUJVW8JwAm72CE4IkC6x0Yz7v_Jr0_Gr1lF7xv r2IYc2Ij64vIr41lF7I21c0EjII2zVCS5cI20VAGYxC7M4IIrI8v6xkF7I0E8cxan2IY04 v7MxkF7I0En4kS14v26r4a6rW5MxAIw28IcxkI7VAKI48JMxC20s026xCaFVCjc4AY6r1j 6r4UMI8I3I0E5I8CrVAFwI0_Jr0_Jr4lx2IqxVCjr7xvwVAFwI0_JrI_JrWlx4CE17CEb7 AF67AKxVW8ZVWrXwCIc40Y0x0EwIxGrwCI42IY6xIIjxv20xvE14v26r1j6r1xMIIF0xvE 2Ix0cI8IcVCY1x0267AKxVWxJVW8Jr1lIxAIcVCF04k26cxKx2IYs7xG6r1j6r1xMIIF0x vEx4A2jsIE14v26r1j6r4UMIIF0xvEx4A2jsIEc7CjxVAFwI0_Gr0_Gr1UYxBIdaVFxhVj vjDU0xZFpf9x0pRHKZLUUUUU= X-CM-SenderInfo: p2lk00vjoszunw6l223fol2u1dvotugofq/ Content-Type: text/plain; charset="utf-8" Plumb Zicbop into hwprobe. Semantics mirror Zicbom/Zicboz to keep userspace expectations aligned. Signed-off-by: Yao Zihong Reviewed-by: Andrew Jones --- arch/riscv/kernel/sys_hwprobe.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/riscv/kernel/sys_hwprobe.c b/arch/riscv/kernel/sys_hwprob= e.c index 000f4451a9d8..7a6ae1327504 100644 --- a/arch/riscv/kernel/sys_hwprobe.c +++ b/arch/riscv/kernel/sys_hwprobe.c @@ -113,6 +113,7 @@ static void hwprobe_isa_ext0(struct riscv_hwprobe *pair, EXT_KEY(ZCB); EXT_KEY(ZCMOP); EXT_KEY(ZICBOM); + EXT_KEY(ZICBOP); EXT_KEY(ZICBOZ); EXT_KEY(ZICNTR); EXT_KEY(ZICOND); @@ -293,6 +294,11 @@ static void hwprobe_one_pair(struct riscv_hwprobe *pai= r, if (hwprobe_ext0_has(cpus, RISCV_HWPROBE_EXT_ZICBOM)) pair->value =3D riscv_cbom_block_size; break; + case RISCV_HWPROBE_KEY_ZICBOP_BLOCK_SIZE: + pair->value =3D 0; + if (hwprobe_ext0_has(cpus, RISCV_HWPROBE_EXT_ZICBOP)) + pair->value =3D riscv_cbop_block_size; + break; case RISCV_HWPROBE_KEY_HIGHEST_VIRT_ADDRESS: pair->value =3D user_max_virt_addr(); break; --=20 2.47.2