From nobody Mon Feb 9 17:59:58 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=1610448495; cv=none; d=zohomail.com; s=zohoarc; b=WvzX3OAAddgnpQS4aU+AQPwjPCTgKGrwQFTHuim0BNPUTtmMDYInSh1DzroUqZ6R+pGC0ONZGKpX5pu3K2YOY1nW/mC8UUJBYkVZOU4fZ5IMg6mMFLqgO0GFeMeXVNLNvoh33PaXe66DLmfRPtJPxjyO/o/dGDz/6L9WLk9I/V8= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1610448495; 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=+Z+lGvqiLBcGINh5IYSP9oHydTQr9H48FOzSyROYZ58=; b=RSQHuG3O8fxtC2JjFL9rkXc2MdkLU2qWk2HZHQ0WxElA+A/k/DBjkQUjruKvvUGg29e+uXKSsWXajcaqs66nRTNvjm7TzMTESdOKop4yOjLgoFyoZroyhkOXIT89yu/m6rirCsmrf/Vr4zz81lKhmI1Y2Ov12uilIEcb15EugVw= 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 1610448495287530.1084824935011; Tue, 12 Jan 2021 02:48:15 -0800 (PST) Received: from localhost ([::1]:53958 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kzHDh-0006AM-JT for importer@patchew.org; Tue, 12 Jan 2021 05:48:13 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:39134) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kzGDx-0007Wp-Ti for qemu-devel@nongnu.org; Tue, 12 Jan 2021 04:44:25 -0500 Received: from mail-pf1-x42f.google.com ([2607:f8b0:4864:20::42f]:38173) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1kzGDw-0008W0-7N for qemu-devel@nongnu.org; Tue, 12 Jan 2021 04:44:25 -0500 Received: by mail-pf1-x42f.google.com with SMTP id d2so1070664pfq.5 for ; Tue, 12 Jan 2021 01:44:23 -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 h16sm2865664pgd.62.2021.01.12.01.44.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 12 Jan 2021 01:44:22 -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=+Z+lGvqiLBcGINh5IYSP9oHydTQr9H48FOzSyROYZ58=; b=g4V7muYTuzkM6UO0saK9QRDUVO2gM5NQUS86cyKxd+AepoZCBGzg4DnSws0AzSdl/l 9PrRERIS9wfGfXKag+ldJb1J3MfGPIx/zGFqHq8e9UL+fVo249XzdoWO0nwYI+2q9GHb NUQvyk7Hj+n9MY2ZNsgQerFosxX2GrlzEmhPbAjQqx6wGRCWYwlIfLIAfwuaQpxB2UQH +R/DEmED4bd5hRJqKzMlmxkksVCAFIifB8g4OLqNfdhoJ+I6KWvVpj+kux8CPluZ4kIf 00gedzdj9VJqUD9GSbIcDbPios7fs9uyP6pkYSA3QX6TmISJiVtwsmP4M7BZDG35ZKPh 0Yrw== 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=+Z+lGvqiLBcGINh5IYSP9oHydTQr9H48FOzSyROYZ58=; b=kiEi3rwUI+ETiZAvii4gKwOEBlyb8aN3YKx9SKlvpDqLLDe1ZpKdoqm8YYONHEK6ye q4ChTwK++AVhZeFPpYLrDinlutPun3vTfDSMlq0199ysqQCkgSuVYGmYGvlvxiETQemd RE6dcirFzj140wNEIfMFTqFsFefn82Jw+0eoLdE3EdTqugcTOh2YjzLyZivKEOgmb28z 1Xm0pfZlfRO19n80L70/SZPIq9RCpeV8XSKRqVe5EFBUUZSX0Zv7bvoMsth0dRTxwVHO Vg3c1yMa90h1Bi7S8+Nq0oLARqNSaWGzI5valrsGVZN7RrNXiproJoflMjMHWEev9bCH slsw== X-Gm-Message-State: AOAM533US6Lqb1pl4hQiferJmnkZjxb1g+q9o9oZSBwlfCVS7Ei6yzQq 4H0hpkcUkzZBNyE2zgpDHexes2IVOS3IZHie X-Google-Smtp-Source: ABdhPJwfCprP63nkdYbvXUz/iZiHwR9qzyVPAENqrCcfai4SqEk5rPkoCDX7VEsrJENAN+fCOvmmjQ== X-Received: by 2002:a63:cd08:: with SMTP id i8mr3887216pgg.425.1610444662735; Tue, 12 Jan 2021 01:44:22 -0800 (PST) From: frank.chang@sifive.com To: qemu-devel@nongnu.org, qemu-riscv@nongnu.org Subject: [PATCH v6 64/72] target/riscv: rvv-1.0: relax RV_VLEN_MAX to 1024-bits Date: Tue, 12 Jan 2021 17:39:38 +0800 Message-Id: <20210112093950.17530-65-frank.chang@sifive.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210112093950.17530-1-frank.chang@sifive.com> References: <20210112093950.17530-1-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::42f; envelope-from=frank.chang@sifive.com; helo=mail-pf1-x42f.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 993539aed94..e3c0c750fb3 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