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[114.34.229.221]) by smtp.gmail.com with ESMTPSA id d9sm16478588pgv.45.2020.08.17.01.50.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 17 Aug 2020 01:50:24 -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=QP1ruXw5l6C+lj6ysQ0KAHvQ+wLxEkpUq7+eUbeJMsI=; b=cYMBm1XF+8oCl+njAO0gF0KaA+BSWosAE8XskcjMcs02bek9ld2dz/0TXT2oYJHG/K Y7tcA4ny057/Us391mIXWfdDddgHNRYP6OW7WWAS46/Q6yXgtQ2YsDoVtipzzsMZ4pG4 yQEa+ZBsYq5uAjxWx+7iLOQkyLJyDUO+zNpPWq1hsO+uqkesqczb1feKmGnoG6iLi7sf QUzG6q/3g9+a6788xh5g82nGN8A8C7YERLrpSPMwFhSnrT4Gn3qlZPV7asZ1tobJmyzf tUlPnh4h3p18MtSrDyQhUDxIC/Km5h3wRsTf3vCuD/iQKVksjr9FKde6k58XRaQYWQwu dn9A== 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=QP1ruXw5l6C+lj6ysQ0KAHvQ+wLxEkpUq7+eUbeJMsI=; b=e+bWSt4O+5vPXbumAFO24h5THtjqaoB206M0x3X1AobluHjoXkGNtg/QTJjglpZ4R+ NwlS2KGt7YDtIADnx86jaLhb2rFCXymXv5+anrgqd1FhbypAtLlGVdGg9/Pykywt/vuv mxHIG/a+URCLc4IDGdNxChKA+0PYHbDZUb0P4zKvnFK3i7Q9897s4RzXP5VTFpYrzWSj 02auPEKiKTy9OU1U/8gwqj1z4LhoS9QbTuN0onF7TPcEuEbaOfy2hC/s3uMVCDt2Ss4z mkrpfXBbTTuVx95KAqp0ADTm/rXFSKh+cMjf/2az8DM9J43MvqP4/t9g35yiSa4xqUuW 0QzA== X-Gm-Message-State: AOAM531wkbad+aH3o5SmJtsC+TYqZYH7hOtmymLfkfO1T/tAeINJth6L zgyfvuyrKukdV8J1rOpKAF/m85LiRuxlUg== X-Google-Smtp-Source: ABdhPJxTq+/bbwaF8pjFfuPLn3gWJvCyxpwy0bTRTjzIB/sAqyGU8OLeDM7e0iRn3n8HFe6HZjsBXQ== X-Received: by 2002:a17:902:d346:: with SMTP id l6mr9778783plk.77.1597654224698; Mon, 17 Aug 2020 01:50:24 -0700 (PDT) From: frank.chang@sifive.com To: qemu-devel@nongnu.org, qemu-riscv@nongnu.org Subject: [RFC v4 07/70] target/riscv: rvv-1.0: remove rvv related codes from fcsr registers Date: Mon, 17 Aug 2020 16:48:52 +0800 Message-Id: <20200817084955.28793-8-frank.chang@sifive.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200817084955.28793-1-frank.chang@sifive.com> References: <20200817084955.28793-1-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::1031; envelope-from=frank.chang@sifive.com; helo=mail-pj1-x1031.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, URIBL_BLOCKED=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 7f937e5b9c8..005839390a1 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 -1; } @@ -166,10 +162,6 @@ 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 @@ -180,13 +172,8 @@ static int write_fcsr(CPURISCVState *env, int csrno, t= arget_ulong val) return -1; } 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