From nobody Tue Feb 10 01:30:45 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org ARC-Seal: i=1; a=rsa-sha256; t=1601407198; cv=none; d=zohomail.com; s=zohoarc; b=fbGC/cRtinjMC4fLxrw356b6fmuIkgBFAJWTVXqa3AEzAsiFww45ZgiWOtU2R1J987FxisWSQPrU2+yVeBP2igHU9Z7/zyRwI5lkmCD1Oq8tz1xh+2b7E/EwYHcDy+3MX6Y1MdHGmyrvVw4It1Mxd3kaNDYGG+utosJ6VsPKBDA= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1601407198; h=Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:Message-ID:References:Sender:Subject:To; bh=sb729KQ/Ggt57pZC6lIowtPsKniG5L62uiBA4Ej4wdM=; b=EOt4R1UJAtnSiaP8CkWsXuZ8f6ibalxYq+X7sGpICqFtyyhXWeZNzrlO+4YKuns8+Hd9HqFRvx2KHuQCXOHPSUJeoIie+W80vxbHhBqHhSlYh/qDxUpFuhqGl7T/XQ0mt8wMZQXyL4tJMzSdAuQE9RplH0BQJNzRcEv6lvlHqGE= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1601407198604528.383449481494; Tue, 29 Sep 2020 12:19:58 -0700 (PDT) Received: from localhost ([::1]:40160 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kNLAK-0001o9-S8 for importer@patchew.org; Tue, 29 Sep 2020 15:19:57 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:43384) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kNKwc-0002qa-Oq for qemu-devel@nongnu.org; Tue, 29 Sep 2020 15:05:46 -0400 Received: from mail-pf1-x429.google.com ([2607:f8b0:4864:20::429]:41895) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1kNKwb-0001pz-1X for qemu-devel@nongnu.org; Tue, 29 Sep 2020 15:05:46 -0400 Received: by mail-pf1-x429.google.com with SMTP id z19so5515118pfn.8 for ; Tue, 29 Sep 2020 12:05:44 -0700 (PDT) Received: from localhost.localdomain (122-116-72-36.HINET-IP.hinet.net. [122.116.72.36]) by smtp.gmail.com with ESMTPSA id v8sm6003950pgg.58.2020.09.29.12.05.41 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 29 Sep 2020 12:05:42 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sifive.com; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=sb729KQ/Ggt57pZC6lIowtPsKniG5L62uiBA4Ej4wdM=; b=hVAmBDNDVm5Xi4vSJG+kbF1mBO/N5lW9FDYrieCsKOaFT4EOgv+TqQlxH6SzPneVP4 s2Un0fzfNI6LC/Yfi7lLVIkhZugplx1cXkmj+a3BDG5zkpClHM1wO0QNkpMRKI7+Aig+ fmAZXupSkCA5OaHr+GvQQApiL0cAuAc5jHHll8CNdA363ff90UYplRcNVPNeu4KrrZiZ lShr5/gjCsi81uVocDzMCEJl40/FUpGaA1rdWe7i+ZVHqMzHzkTp6hPCSX1jY2M/z5uj teRDFYN743Z0fgMoaO8iLBdkYpy+drDgdRokp+qFlrXvCzTBwQmbPqkefC97PuLmRKdR gDMA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=sb729KQ/Ggt57pZC6lIowtPsKniG5L62uiBA4Ej4wdM=; b=MtWZxV1kIUSM7dTO4Xe/Dfyq/lzd5Y/ANu8Gi1RJX5OIUwDrBA73AMeKGDaHx35jzh C9G40557JFcHn2qY35N9dsAl71iOp6DL1olIRFREutSGbch36q5jADtbGf/SfZhYKMYl ikiJ5t5BHTip9cp8TBU6MmFcE0hxxaKSfH6PlIqJ9PaKAtwnGesWKqdxAFt6nim78X7O w2cLNlvC8gtbAh/9K37YIyghYzIEnt/9srfG0pY9r0Nmg/vflakF2C6YmjwVB4gn8/jh xUO6UDbkHOWprOJMIQCkHTEtpGhWdgrF2ogxxZ3kcFzehvcygpQCeAQzppZZbF3mITue aHhg== X-Gm-Message-State: AOAM531R/IEZrDAzyJGfoAAYcOn+OAWBCRCSabynJRnGPhnplyiDpy3g KPv5MVVqFGS09ulnzIH84Nt57eZNZODmIA== X-Google-Smtp-Source: ABdhPJzGzCNxHRPZ1STxJjjfgBze9GU6ltk9WJyJwwmVCtI5uBn6UhkhrrB8B+5j8xYam47WqNGMVw== X-Received: by 2002:a63:5858:: with SMTP id i24mr4272308pgm.449.1601406343096; Tue, 29 Sep 2020 12:05:43 -0700 (PDT) From: frank.chang@sifive.com To: qemu-devel@nongnu.org, qemu-riscv@nongnu.org Subject: [RFC v5 09/68] target/riscv: rvv-1.0: add vlenb register Date: Wed, 30 Sep 2020 03:03:44 +0800 Message-Id: <20200929190448.31116-10-frank.chang@sifive.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200929190448.31116-1-frank.chang@sifive.com> References: <20200929190448.31116-1-frank.chang@sifive.com> 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+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2607:f8b0:4864:20::429; envelope-from=frank.chang@sifive.com; helo=mail-pf1-x429.google.com X-detected-operating-system: by eggs.gnu.org: No matching host in p0f cache. That's all we know. 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: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Sagar Karandikar , Frank Chang , Bastian Koppelmann , Alistair Francis , Greentime Hu , Palmer Dabbelt Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" From: Greentime Hu Signed-off-by: Greentime Hu Signed-off-by: Frank Chang Reviewed-by: Richard Henderson --- target/riscv/cpu_bits.h | 1 + target/riscv/csr.c | 7 +++++++ 2 files changed, 8 insertions(+) diff --git a/target/riscv/cpu_bits.h b/target/riscv/cpu_bits.h index 0cf8a04dd8..1a84b7fd75 100644 --- a/target/riscv/cpu_bits.h +++ b/target/riscv/cpu_bits.h @@ -63,6 +63,7 @@ #define CSR_VCSR 0x00f #define CSR_VL 0xc20 #define CSR_VTYPE 0xc21 +#define CSR_VLENB 0xc22 =20 /* VCSR fields */ #define VCSR_VXSAT_SHIFT 0 diff --git a/target/riscv/csr.c b/target/riscv/csr.c index aa58b0b369..cf9718908e 100644 --- a/target/riscv/csr.c +++ b/target/riscv/csr.c @@ -241,6 +241,12 @@ static int read_vtype(CPURISCVState *env, int csrno, t= arget_ulong *val) return 0; } =20 +static int read_vlenb(CPURISCVState *env, int csrno, target_ulong *val) +{ + *val =3D env_archcpu(env)->cfg.vlen >> 3; + return 0; +} + static int read_vl(CPURISCVState *env, int csrno, target_ulong *val) { *val =3D env->vl; @@ -1400,6 +1406,7 @@ static riscv_csr_operations csr_ops[CSR_TABLE_SIZE] = =3D { [CSR_VCSR] =3D { vs, read_vcsr, write_vcsr = }, [CSR_VL] =3D { vs, read_vl = }, [CSR_VTYPE] =3D { vs, read_vtype = }, + [CSR_VLENB] =3D { vs, read_vlenb = }, /* User Timers and Counters */ [CSR_CYCLE] =3D { ctr, read_instret = }, [CSR_INSTRET] =3D { ctr, read_instret = }, --=20 2.17.1