From nobody Wed Nov 19 04:36:59 2025 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=1614312926; cv=none; d=zohomail.com; s=zohoarc; b=KqWKFX/npj4lrQhZNKJ040bAm97Y+9eS5zygwK9rSR0L5e7zZuRjQEPqpYGWQaQry2sSQPuv8/+Eius3g5SrAmHSplSt/KuFrGzewBXlnshLzye3orXuq8y6oayannLU4HOsQFP6/z9H9BXlAmygonOC+rvjN88a8/iC6O5WQB4= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1614312926; 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=1B1lAs1ENLSRJlGwFy7I/FZXh4BfFPp2mlxsIvpc5lU=; b=aiiITG+GnLbh8WjKFPDFe2Pz5ZpY+1zJnhxBLUvjg5TOiCiENlwGpqw/J0PaKZ1S00ouTjjAZ6AHrs5dMWhwbS+9JhrubKKtT9Ms1tbspwylWIr5z/hn2NyP5dg56ZV5MAIAn6E8s6Z1mYK4Gx4ZBsG4cpkrWl+sx/jwhBvynkc= 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 1614312926755789.5860227043527; Thu, 25 Feb 2021 20:15:26 -0800 (PST) Received: from localhost ([::1]:37754 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lFUXF-00065t-Kw for importer@patchew.org; Thu, 25 Feb 2021 23:15:25 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:36142) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lFTkn-0003De-FK for qemu-devel@nongnu.org; Thu, 25 Feb 2021 22:25:21 -0500 Received: from mail-pg1-x531.google.com ([2607:f8b0:4864:20::531]:34488) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1lFTkk-0002x8-IG for qemu-devel@nongnu.org; Thu, 25 Feb 2021 22:25:21 -0500 Received: by mail-pg1-x531.google.com with SMTP id l2so5422889pgb.1 for ; Thu, 25 Feb 2021 19:25:17 -0800 (PST) Received: from frankchang-ThinkPad-T490.internal.sifive.com (114-34-229-221.HINET-IP.hinet.net. [114.34.229.221]) by smtp.gmail.com with ESMTPSA id p11sm7083709pjb.31.2021.02.25.19.25.13 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 25 Feb 2021 19:25:15 -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; bh=1B1lAs1ENLSRJlGwFy7I/FZXh4BfFPp2mlxsIvpc5lU=; b=e3BoeLHzwEQQVA/N2e32vplMSXy+3E26dos3JUkmr5rTObjx34seL85eoy7i4Ntvv0 3Lpf0BNnIxqqrBwA74WnbUWL04WlFNXUz7fRt5sqz3ByiJSrxEWmdcL0hsMGGLgqH00+ KkwAfi+GB87+6NgmZE+ep82ZybzWw8rgA00UlO7xlBLcgePFTNkVP5f027r6m4uOsi4Q 8cjOwZmaJyg5dyK4GFS7fAVAAlmgpLap8qxNeaRfFOBiAFDpsilJJBZptWWU/CXUotHS vw4uqJEdDw4QI4W72vKhNMt/HbibITwrYy7ClvCB3ogRuCNsriOCKIwIwK7T7ZVnruvi hrOg== 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=1B1lAs1ENLSRJlGwFy7I/FZXh4BfFPp2mlxsIvpc5lU=; b=hEkMtFfWYqT8dSMErR7h8wMk2EekOcZC36NzNo+Hbe7meIoDS5wtZVzJgvvkQ3U0Gf cRYlsAnZZVqlXgpaTgCFRXF0s+41wartW3HyeNeb6CMuiQix52P7x+7FTvNH9ntDecRI mUXr4kMRwtqinXa1zNARYEOZyqpnpOClACfH8mxibDeIjRVYW0jsr/yz5k0Z8ztJITsg RICES97Tzk83SYSFotPbocgNzbv5YiMdvp31DMGj/uiUz6itNFldRoSZOhSke521UEhT ohgfcTZycio3MB1yZIjOaBHojRZzSRRmnabR/wqVnQRpfCR3CaiM4L28ulT/lQPeyAqQ v2Sg== X-Gm-Message-State: AOAM5338pXQU7P9Q2negCrUvzfSKRNWKVB/sBUmJNkapFoqh8OxK2/1h 47dowC8Ner0BD3GAKUimmJDHozgMUoDH9Q== X-Google-Smtp-Source: ABdhPJy6Tp3Cj/4mlo3wm2x+ISkbN0YF5n2wSIpkkeuhPtfgYQ1bOikSOC3wbFECO3quwcz2BV1JMw== X-Received: by 2002:a63:ab4f:: with SMTP id k15mr1019919pgp.280.1614309916107; Thu, 25 Feb 2021 19:25:16 -0800 (PST) From: frank.chang@sifive.com To: qemu-devel@nongnu.org, qemu-riscv@nongnu.org Subject: [PATCH v7 64/75] target/riscv: rvv-1.0: relax RV_VLEN_MAX to 1024-bits Date: Fri, 26 Feb 2021 11:18:48 +0800 Message-Id: <20210226031902.23656-65-frank.chang@sifive.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210226031902.23656-1-frank.chang@sifive.com> References: <20210226031902.23656-1-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::531; envelope-from=frank.chang@sifive.com; helo=mail-pg1-x531.google.com 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 , Richard Henderson , Alistair Francis , Palmer Dabbelt , LIU Zhiwei 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 Signed-off-by: Frank Chang -- Signed-off-by: Frank Chang --- target/riscv/cpu.h | 2 +- target/riscv/insn_trans/trans_rvv.c.inc | 4 ++-- target/riscv/vector_helper.c | 2 +- 3 files changed, 4 insertions(+), 4 deletions(-) diff --git a/target/riscv/cpu.h b/target/riscv/cpu.h index 367b182735f..ad2497229db 100644 --- a/target/riscv/cpu.h +++ b/target/riscv/cpu.h @@ -103,7 +103,7 @@ typedef struct CPURISCVState CPURISCVState; =20 #include "pmp.h" =20 -#define RV_VLEN_MAX 256 +#define RV_VLEN_MAX 1024 =20 FIELD(VTYPE, VLMUL, 0, 3) FIELD(VTYPE, VSEW, 3, 3) diff --git a/target/riscv/insn_trans/trans_rvv.c.inc b/target/riscv/insn_tr= ans/trans_rvv.c.inc index 6f5c48db0e6..1f6cd7f97c6 100644 --- a/target/riscv/insn_trans/trans_rvv.c.inc +++ b/target/riscv/insn_trans/trans_rvv.c.inc @@ -613,8 +613,8 @@ static bool ldst_us_trans(uint32_t vd, uint32_t rs1, ui= nt32_t data, base =3D tcg_temp_new(); =20 /* - * As simd_desc supports at most 256 bytes, and in this implementation, - * the max vector group length is 2048 bytes. So split it into two par= ts. + * As simd_desc supports at most 2048 bytes, and in this implementatio= n, + * the max vector group length is 4096 bytes. So split it into two par= ts. * * The first part is vlen in bytes, encoded in maxsz of simd_desc. * The second part is lmul, encoded in data of simd_desc. diff --git a/target/riscv/vector_helper.c b/target/riscv/vector_helper.c index 8d389af4b78..16331939b64 100644 --- a/target/riscv/vector_helper.c +++ b/target/riscv/vector_helper.c @@ -129,7 +129,7 @@ static uint32_t vext_wd(uint32_t desc) static inline uint32_t vext_max_elems(uint32_t desc, uint32_t esz) { /* - * As simd_desc support at most 256 bytes, the max vlen is 256 bits. + * As simd_desc support at most 2048 bytes, the max vlen is 1024 bits. * so vlen in bytes (vlenb) is encoded as maxsz. */ uint32_t vlenb =3D simd_maxsz(desc); --=20 2.17.1