From nobody Mon Feb 9 20:46:22 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=1601406764; cv=none; d=zohomail.com; s=zohoarc; b=Tb0ntqfTU1itraWOSPyIMygi5W4n8OQKEo98AW+kZLZ3SWvorpwynYQb50WM5/mWM9iffUv5gEGOIHS8PhV8arAZjZ6AvXbtnBmyn9qsP+6h0ZWDPdFxc/laZsOCZHND/Zm9Qy8BnPnEQcr6nLcsdGYp8GsvyyneCW3bTuN2Wco= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1601406764; 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=tBEYWiyR/++gCKYsI5lV56MeXltwNHPIVH6DpiEKsns=; b=NUHo/v7vkiiBM3KZvblHv9GII30ewVR6BVLuKpXgIZ4ZEiyQHX5rUYbhxO3NyArYo2yKGVhDiTCPWoi5wozAGlzrAq3me7ehPMIAZg3to29i/+EwNmYKH9r5OOQiKGeqS25MujcP27TaoZb86zsuntMAx1raYvXzi7cTVBkrjEM= 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 1601406764762248.68052040287387; Tue, 29 Sep 2020 12:12:44 -0700 (PDT) Received: from localhost ([::1]:52306 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kNL3L-00033h-Fr for importer@patchew.org; Tue, 29 Sep 2020 15:12:43 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:43288) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kNKwV-0002Zz-KJ for qemu-devel@nongnu.org; Tue, 29 Sep 2020 15:05:39 -0400 Received: from mail-pj1-x1029.google.com ([2607:f8b0:4864:20::1029]:33744) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1kNKwU-0001lH-0V for qemu-devel@nongnu.org; Tue, 29 Sep 2020 15:05:39 -0400 Received: by mail-pj1-x1029.google.com with SMTP id md22so4170622pjb.0 for ; Tue, 29 Sep 2020 12:05:37 -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.58.2020.09.29.12.05.34 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 29 Sep 2020 12:05:36 -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=tBEYWiyR/++gCKYsI5lV56MeXltwNHPIVH6DpiEKsns=; b=UiEheWB6/go99Jlo5xaacVfZNwO4R44fQCUoUGBqbUzvSeae8bloHq/0MDxbb8SKiL qNokzvFxXnIbkv3OW/3P45931fmh+oe/HT1jAVj+739Hhzp2SVgJyTNLmamiQiBqDRM+ PqglC/S3g799LrQnydIrhqTgnqKu9xVhNj18AuheLX53L6WTFtdzZyB9TlC6eENYV1sH hJ+ArnzTiYXKj8EA31ylnC2WRiE7gYfPrXWelV6ovRNgvjW9UbLk1o2e7cm27ozPZAth AtdPUle0UcxIpcnO68/7sCuIRCiaKfPAiW6iidKBJiO2sS8Vi6XjmYgtbwHFf0F7Q9N8 Sq5w== 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=tBEYWiyR/++gCKYsI5lV56MeXltwNHPIVH6DpiEKsns=; b=kjbOHouum9MU0vXvJOn8UgdDDtLIlXapviUO5iOLYrUfZpFvxAm/hZCqRStCCzcMF7 TjuX98zXBTGMH/pVSsd6bRgP1H+DDfGGmBx4zUOevQQtYhZuqgpfPijzygmDbo78UMrp XwKDJ/ZPqqh4UYn+h14S5jnH3m8pzeyUESAq7dYme0gvJYpXSTrTI5qN37M0I86qcsuF XOlJxduhq3mb9yexYYFPWVfjKkBwMUvg5Vem0V12Olos62wV4vr5PYClXjsRrtOE1zwb LVMSP5p8W6AN544MCIKCRd5xwnuj2COYnnhpjkYpUORIeicyxSyx0oWyjTeO0yi6NXzK z0nw== X-Gm-Message-State: AOAM5329ASYUqBP8Uz/577FyaH3Eo3qVEDbOjh301kA/uuy2V9QWvYsh 3fPNpRsQeXQ3YEius3uO49CGGPrtXpJs0w== X-Google-Smtp-Source: ABdhPJx1YcIvdS9muaEk80BqZMXrCmbshkNIvcK5k68+MgPnkTRWLwCGviNQa+1kyXmgep1r4+7PsA== X-Received: by 2002:a17:90a:9f09:: with SMTP id n9mr5135788pjp.88.1601406336511; Tue, 29 Sep 2020 12:05:36 -0700 (PDT) From: frank.chang@sifive.com To: qemu-devel@nongnu.org, qemu-riscv@nongnu.org Subject: [RFC v5 07/68] target/riscv: rvv-1.0: remove rvv related codes from fcsr registers Date: Wed, 30 Sep 2020 03:03:42 +0800 Message-Id: <20200929190448.31116-8-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::1029; envelope-from=frank.chang@sifive.com; helo=mail-pj1-x1029.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: Frank Chang , Alistair Francis , Palmer Dabbelt , Sagar Karandikar , Bastian Koppelmann 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: Frank Chang * Remove VXRM and VXSAT fields from FCSR register as they are only presented in VCSR register. * Remove RVV loose check in fs() predicate function. Signed-off-by: Frank Chang Reviewed-by: Richard Henderson --- target/riscv/csr.c | 13 ------------- 1 file changed, 13 deletions(-) diff --git a/target/riscv/csr.c b/target/riscv/csr.c index 9292ee9963..3117fdbe2e 100644 --- a/target/riscv/csr.c +++ b/target/riscv/csr.c @@ -46,10 +46,6 @@ void riscv_set_csr_ops(int csrno, riscv_csr_operations *= ops) static int fs(CPURISCVState *env, int csrno) { #if !defined(CONFIG_USER_ONLY) - /* loose check condition for fcsr in vector extension */ - if ((csrno =3D=3D CSR_FCSR) && (env->misa & RVV)) { - return 0; - } if (!env->debugger && !riscv_cpu_fp_enabled(env)) { return -RISCV_EXCP_ILLEGAL_INST; } @@ -223,10 +219,6 @@ static int read_fcsr(CPURISCVState *env, int csrno, ta= rget_ulong *val) #endif *val =3D (riscv_cpu_get_fflags(env) << FSR_AEXC_SHIFT) | (env->frm << FSR_RD_SHIFT); - if (vs(env, csrno) >=3D 0) { - *val |=3D (env->vxrm << FSR_VXRM_SHIFT) - | (env->vxsat << FSR_VXSAT_SHIFT); - } return 0; } =20 @@ -237,13 +229,8 @@ static int write_fcsr(CPURISCVState *env, int csrno, t= arget_ulong val) return -RISCV_EXCP_ILLEGAL_INST; } env->mstatus |=3D MSTATUS_FS; - env->mstatus |=3D MSTATUS_VS; #endif env->frm =3D (val & FSR_RD) >> FSR_RD_SHIFT; - if (vs(env, csrno) >=3D 0) { - env->vxrm =3D (val & FSR_VXRM) >> FSR_VXRM_SHIFT; - env->vxsat =3D (val & FSR_VXSAT) >> FSR_VXSAT_SHIFT; - } riscv_cpu_set_fflags(env, (val & FSR_AEXC) >> FSR_AEXC_SHIFT); return 0; } --=20 2.17.1