From patchwork Mon Nov 29 03:02:28 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Frank Chang X-Patchwork-Id: 12643337 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 7CCE7C433EF for ; Mon, 29 Nov 2021 03:15:47 +0000 (UTC) Received: from localhost ([::1]:55374 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mrX8s-000188-KU for qemu-devel@archiver.kernel.org; Sun, 28 Nov 2021 22:15:46 -0500 Received: from eggs.gnu.org ([209.51.188.92]:43572) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mrWyB-0000pN-UI for qemu-devel@nongnu.org; Sun, 28 Nov 2021 22:04:44 -0500 Received: from [2607:f8b0:4864:20::433] (port=45751 helo=mail-pf1-x433.google.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1mrWxs-0008Qk-LY for qemu-devel@nongnu.org; Sun, 28 Nov 2021 22:04:33 -0500 Received: by mail-pf1-x433.google.com with SMTP id x131so15263776pfc.12 for ; Sun, 28 Nov 2021 19:04:23 -0800 (PST) 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 :mime-version:content-transfer-encoding; bh=ua2R+2dkAoBHDORfNb7qNaS3lWgdeuZeqFSpPuYBQcM=; b=PcrOQAeSypH1NCbP/BQ8aAzmU21+tbZDy4FLF3yGb3ATnbt/SGa6wXcERW07nRROf5 5AyZOkijWz3dWu1vcPN4dDt6Q/jdGzzE1Pw+clWNi/cn93yeuXrF1QNpEwCOKJDcbtLM MA+KA/UxTbQfNtC4ag7hhL0mRpnk9JKZ5okl4usSJOCAsXcdKNLysnn1IeFFnnATldP1 idFTDWOG3dqJHmiMGfeRJxR2UqZB45Wazh+Ke27LdIhQNwsioiL4dTIwKEuqX6++7xnP D33r/nxu4GnJhwm11kfRTvWWulqCd4zUfjSCD0fnqf6uskbH0DWoJkV6c5oGEM4WGMvb 05nA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=ua2R+2dkAoBHDORfNb7qNaS3lWgdeuZeqFSpPuYBQcM=; b=jS5PsJDdDcfuWVjppNGWJ6pwRXfcFyGxSRII5uqzLTpsJZPkVjdXgIhD+OqAwv/qZU rjk34jpBBF/51BUspx2ardSDX7kOp8pcytZUIJ7mPC6hutMabDlrtrlGnGMlltnDeJLJ IFIxpHVBD2KpbOcjonmMygZZLtM5T1Mq3N3Olir+XO8K1bDn0NIkZZcJhHronMJZqYRN KnRF/0aJfL1r1lb9ujgUVsoImw1FXutPiIpCmclty/XLPSvn4ZzaRenJSw0GhH19Q2jY l7dS8WASszYezMEm8KAJ1VgacDSg+ZOKM33LisObAXJLanIj5jt8yYCXRVpqurGQhB3n 1AyQ== X-Gm-Message-State: AOAM531zezVleStph4bT4KQnOJIeKa1yu/1vuC9wQkvyE0rJD/O72a/U mLKXCBC3FqAfqcMJ8iX5IC0C7J0R1b++Kwuy X-Google-Smtp-Source: ABdhPJxeYt2XTGPO3emnkj+EW8k22qjpMOT4wdhQ5zsUwP4GmpYdiKksTp05io9Y8SvWx856Suh3IQ== X-Received: by 2002:a63:c142:: with SMTP id p2mr18936626pgi.576.1638155062103; Sun, 28 Nov 2021 19:04:22 -0800 (PST) Received: from frankchang-ThinkPad-T490.internal.sifive.com (59-124-168-89.hinet-ip.hinet.net. [59.124.168.89]) by smtp.gmail.com with ESMTPSA id oj11sm17904040pjb.46.2021.11.28.19.04.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 28 Nov 2021 19:04:21 -0800 (PST) From: frank.chang@sifive.com To: qemu-devel@nongnu.org Subject: [PATCH v10 08/77] target/riscv: rvv-1.0: remove rvv related codes from fcsr registers Date: Mon, 29 Nov 2021 11:02:28 +0800 Message-Id: <20211129030340.429689-9-frank.chang@sifive.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20211129030340.429689-1-frank.chang@sifive.com> References: <20211129030340.429689-1-frank.chang@sifive.com> MIME-Version: 1.0 X-Host-Lookup-Failed: Reverse DNS lookup failed for 2607:f8b0:4864:20::433 (failed) Received-SPF: pass client-ip=2607:f8b0:4864:20::433; envelope-from=frank.chang@sifive.com; helo=mail-pf1-x433.google.com X-Spam_score_int: -8 X-Spam_score: -0.9 X-Spam_bar: / X-Spam_report: (-0.9 / 5.0 requ) BAYES_00=-1.9, DKIM_INVALID=0.1, DKIM_SIGNED=0.1, PDS_HP_HELO_NORDNS=0.001, RCVD_IN_DNSWL_NONE=-0.0001, RDNS_NONE=0.793, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no 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: , Cc: qemu-riscv@nongnu.org, Frank Chang , Bin Meng , Richard Henderson , Alistair Francis , Palmer Dabbelt Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" 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 Reviewed-by: Alistair Francis --- target/riscv/csr.c | 13 ------------- 1 file changed, 13 deletions(-) diff --git a/target/riscv/csr.c b/target/riscv/csr.c index bc149add6ce..c522260986c 100644 --- a/target/riscv/csr.c +++ b/target/riscv/csr.c @@ -38,10 +38,6 @@ void riscv_set_csr_ops(int csrno, riscv_csr_operations *ops) static RISCVException fs(CPURISCVState *env, int csrno) { #if !defined(CONFIG_USER_ONLY) - /* loose check condition for fcsr in vector extension */ - if ((csrno == CSR_FCSR) && (env->misa_ext & RVV)) { - return RISCV_EXCP_NONE; - } if (!env->debugger && !riscv_cpu_fp_enabled(env)) { return RISCV_EXCP_ILLEGAL_INST; } @@ -261,10 +257,6 @@ static RISCVException read_fcsr(CPURISCVState *env, int csrno, { *val = (riscv_cpu_get_fflags(env) << FSR_AEXC_SHIFT) | (env->frm << FSR_RD_SHIFT); - if (vs(env, csrno) >= 0) { - *val |= (env->vxrm << FSR_VXRM_SHIFT) - | (env->vxsat << FSR_VXSAT_SHIFT); - } return RISCV_EXCP_NONE; } @@ -273,13 +265,8 @@ static RISCVException write_fcsr(CPURISCVState *env, int csrno, { #if !defined(CONFIG_USER_ONLY) env->mstatus |= MSTATUS_FS; - env->mstatus |= MSTATUS_VS; #endif env->frm = (val & FSR_RD) >> FSR_RD_SHIFT; - if (vs(env, csrno) >= 0) { - env->vxrm = (val & FSR_VXRM) >> FSR_VXRM_SHIFT; - env->vxsat = (val & FSR_VXSAT) >> FSR_VXSAT_SHIFT; - } riscv_cpu_set_fflags(env, (val & FSR_AEXC) >> FSR_AEXC_SHIFT); return RISCV_EXCP_NONE; }