From nobody Fri Oct 3 20:25:52 2025 Received: from mail-pf1-f181.google.com (mail-pf1-f181.google.com [209.85.210.181]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 282C5223301 for ; Tue, 26 Aug 2025 14:57:54 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.210.181 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756220276; cv=none; b=gCQWNn2kY+ohAHPBS6loa/5hZEQwBNxH+tpwnZfdI6xRTKSt579hRBx0GyhW09aTcLwjZr+ldsBQFp7Ii9JqAnbgdCM+A3i5HHOqPMeNiYuCbcDqrzA8oAjAKVDRz45LgAbOYJSOT4inQVppZojyfDUJisYT0WsfpzLhadRT2QY= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756220276; c=relaxed/simple; bh=AHBUSWC6NQwt5gipootBG6lu9YU2EyCEcBy5+RZx010=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=mthLbet5j+LpyCYUguZLg3/6egfRGVLuUaD6L6bbJum5chFw4ABR2yYF11222E0ejOKuks+kbOaxVeT5GNnvERCiM2gRZDT42SrjrWX0W2qjnE+u764QV+H/+O1eJiThzzLPeuX5mf538uOYcYuVbBIoDJ9bFUzhKUJSi/w+/eE= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=bytedance.com; spf=pass smtp.mailfrom=bytedance.com; dkim=pass (2048-bit key) header.d=bytedance.com header.i=@bytedance.com header.b=bMM60nCJ; arc=none smtp.client-ip=209.85.210.181 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=bytedance.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=bytedance.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bytedance.com header.i=@bytedance.com header.b="bMM60nCJ" Received: by mail-pf1-f181.google.com with SMTP id d2e1a72fcca58-771eecebb09so2050809b3a.3 for ; Tue, 26 Aug 2025 07:57:54 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bytedance.com; s=google; t=1756220274; x=1756825074; darn=vger.kernel.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=L4l4TBk/LGXRpjovIOSrhrLfanQNTxjIirl6+Uo+sE8=; b=bMM60nCJIbnj/vEfgjx/W3UrWekLDr1H+f5Ayy71bdIaUb5PqZ2UIWre3HBUSl5PNq 9moi/JhosHvUlcWHaqjku2UvM9eUHDf4VcJhtjQgS5gucPQFMPjqwAx/Yw7FxVaZxh+T GHgj4INzGUn1X1Fl86Y+wM7NMR7wvPaTDr/BzfbYztOILhWsN2yF3DaX08Wz6TRDbYJU XiPhoSoXaNNQbasDn9Bu5KFiRQ/5j+xRunyggrrhxhwBxTxyo372IlV0FoW0ojvy5SH+ Fr+XUNSt/z95jT27a9VZjN4+PysCv73QKu1Mm++3IAVKLdzJa3xwcUuxif5zi6a7CJMp LBNw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1756220274; x=1756825074; 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=L4l4TBk/LGXRpjovIOSrhrLfanQNTxjIirl6+Uo+sE8=; b=j47rQDiWJdMV/P3KITgBwvh0xXK5ioMUCu1hc6C4JlUVQ9Dc+fsSGGjLCtFOGpXWrc OYX4AHgGVshA9rGFMbPQvs6FCrXq2gSWEoHUEKtcHKAmmaI8FW+f+g1TqWDVCH00EuiJ oFaVWUBZIGPxnEa9tj04KIYBVPThfvqA72BXojbtn840n0+5Ivd07H1/CVPA/G3FDWtZ 9e0PSB0nTIHmPx/m5tdQ2bzk1e+Pw+xXGyezQYH8z6x4AIPH/TPsAAZzJBgoxS86HtZl mQhHO2UCc+0HUCrC5Oopj21XAJMqLEFfVAKBxoeLG6LcIdA+tY9We/GH8t2na4PXJwHk qOSg== X-Forwarded-Encrypted: i=1; AJvYcCW1JPCBzeLo86vxYMD4E1cqrcTfJm1lFNNPvG9K3nCmTDGQYqLn2cQ0KFSK4FhCZuNVPGXoQEDlxKBWNqk=@vger.kernel.org X-Gm-Message-State: AOJu0YxJ1aGlXfJ7djRU6FDfkxP6yEaQJOwkjyPTS6NHBAWUomhr7hya chYZEyirkFeQRTb2sGx4FTJ3wi77orR4ufL2OJy8vbf/VuIPOfPMj4MbJi8mGAuuUpU= X-Gm-Gg: ASbGnct8fo8hmiL2Xcizi9osJBdMoW0iSzRba7D3XQj8Lxp8F1qVNViGkvrnXGkTj1Q 2vmzFYZAl1XWZ0IH1pzw7GrIB0khmfDrGI9Vh/OJd18vl3C0U0f4cGBPZHBve3QBQnNdJtAZ5o5 JW36EEDLp5Y/ikYSpYOPdlRSJJiDzmq3NOZ/afGI/lduULZ3mKEzfXC11AST35RJ45HXebYMjJ9 jL6Kw3S4NIBvoXkNXem4fP1vNntgOZpwaR2Yw4ny1mmzXRo952Q6Vst6Hkv1h4lanMLf5VBonWd XRa4wSM3gYT7qIrAYWCbbahLoDX7WEvVjKTQ922hMmh2xECjmacOZomaqw8TSKoxkRR/MF0sHIQ mnWWkn3e67HC9a/IYvScbOf/PXdZtWdDh6S2rzna/nDrtb7MUY5WxHEb2c/cYi35lsCi/JbVagH q3Pu8LJOEbun3fF0hVkQ2cJV1GuGSkZuobZwZzB99Fch0= X-Google-Smtp-Source: AGHT+IF2b1+8Sme48WZ+/3lAfrfDRXPo0RsBhXH2ou3PBP/Wh3Zgu70REv/4ACU8qivX/oSldk1NJg== X-Received: by 2002:a05:6a00:1793:b0:771:f852:4529 with SMTP id d2e1a72fcca58-771f8524884mr4800612b3a.13.1756220273882; Tue, 26 Aug 2025 07:57:53 -0700 (PDT) Received: from J9GPGXL7NT.bytedance.net ([61.213.176.56]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-77059928c5asm7209799b3a.1.2025.08.26.07.57.50 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Tue, 26 Aug 2025 07:57:53 -0700 (PDT) From: Xu Lu To: paul.walmsley@sifive.com, palmer@dabbelt.com, aou@eecs.berkeley.edu, alex@ghiti.fr, ajones@ventanamicro.com, brs@rivosinc.com Cc: linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, Xu Lu Subject: [RFC PATCH 1/4] riscv: add ISA extension parsing for Zalasr Date: Tue, 26 Aug 2025 22:57:37 +0800 Message-Id: <20250826145740.92276-2-luxu.kernel@bytedance.com> X-Mailer: git-send-email 2.39.5 (Apple Git-154) In-Reply-To: <20250826145740.92276-1-luxu.kernel@bytedance.com> References: <20250826145740.92276-1-luxu.kernel@bytedance.com> 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 Content-Type: text/plain; charset="utf-8" Add parsing for Zalasr ISA extension. Signed-off-by: Xu Lu --- arch/riscv/include/asm/hwcap.h | 1 + arch/riscv/kernel/cpufeature.c | 1 + 2 files changed, 2 insertions(+) diff --git a/arch/riscv/include/asm/hwcap.h b/arch/riscv/include/asm/hwcap.h index affd63e11b0a3..ae3852c4f2ca2 100644 --- a/arch/riscv/include/asm/hwcap.h +++ b/arch/riscv/include/asm/hwcap.h @@ -106,6 +106,7 @@ #define RISCV_ISA_EXT_ZAAMO 97 #define RISCV_ISA_EXT_ZALRSC 98 #define RISCV_ISA_EXT_ZICBOP 99 +#define RISCV_ISA_EXT_ZALASR 100 =20 #define RISCV_ISA_EXT_XLINUXENVCFG 127 =20 diff --git a/arch/riscv/kernel/cpufeature.c b/arch/riscv/kernel/cpufeature.c index 743d53415572e..bf9d3d92bf372 100644 --- a/arch/riscv/kernel/cpufeature.c +++ b/arch/riscv/kernel/cpufeature.c @@ -472,6 +472,7 @@ const struct riscv_isa_ext_data riscv_isa_ext[] =3D { __RISCV_ISA_EXT_DATA(zaamo, RISCV_ISA_EXT_ZAAMO), __RISCV_ISA_EXT_DATA(zabha, RISCV_ISA_EXT_ZABHA), __RISCV_ISA_EXT_DATA(zacas, RISCV_ISA_EXT_ZACAS), + __RISCV_ISA_EXT_DATA(zalasr, RISCV_ISA_EXT_ZALASR), __RISCV_ISA_EXT_DATA(zalrsc, RISCV_ISA_EXT_ZALRSC), __RISCV_ISA_EXT_DATA(zawrs, RISCV_ISA_EXT_ZAWRS), __RISCV_ISA_EXT_DATA(zfa, RISCV_ISA_EXT_ZFA), --=20 2.20.1