From patchwork Mon Jul 10 12:31:22 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alistair Francis X-Patchwork-Id: 1805717 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20221208 header.b=i51mPouc; dkim-atps=neutral Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4R03ML29D1z20Ph for ; Mon, 10 Jul 2023 22:33:34 +1000 (AEST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qIq4e-0000il-4u; Mon, 10 Jul 2023 08:33:04 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qIq4a-0000Tm-Lk for qemu-devel@nongnu.org; Mon, 10 Jul 2023 08:33:01 -0400 Received: from mail-pf1-x430.google.com ([2607:f8b0:4864:20::430]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1qIq4Z-0003Nh-4M for qemu-devel@nongnu.org; Mon, 10 Jul 2023 08:33:00 -0400 Received: by mail-pf1-x430.google.com with SMTP id d2e1a72fcca58-6687466137bso2735769b3a.0 for ; Mon, 10 Jul 2023 05:32:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1688992377; x=1691584377; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=p/otPcHa/MJ52rE0UQhNzbApY8GuoRU/7R3XvMGrnss=; b=i51mPoucPm62UCOcIGGCp4211Lk0mqs0YdhW0/RwVL76U9GJlAfjB5VySy6I79N/tH 81HEV7ufymNrGCGdaZOYoHmh+KoFKofX0MJT5VWrQQAi0jOMw8oNPHSCOof4YOItLxXI N9VwPgGd1NGmAMqDSjaNVSO1IQZfziiL6pddVYAehDFUHe5H6xHGKqjnpD6mpwWTnp7g NQQpH6A7L15wHlujjqAOBInR9A2iHq+rkDtqCB9STQn/2eu3oXyRUXH/6xtcipGx7htA 8KsdRqtJmbTRI9vkXR8rQBcBeIRW0sbM8PqzxQnn3JY0Ev+RsPwtrnXK6hx1ZydloiLW z86Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1688992377; x=1691584377; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=p/otPcHa/MJ52rE0UQhNzbApY8GuoRU/7R3XvMGrnss=; b=Qq5XtIlZCofYsNz2tMf0lM42Gx/PEpyDAtiJrZKLeyNt0wXrNyPwjxTGxxnVpwGDq0 xwpMEj/UtyyNmPZcT4reO5BDtQ2My8to6O8GH4A8tDGI4en8CQHik/DJLw7Xm7qCAKjS 8JQMcLy+57XIbRm8QaHetpFeWOmVLg7WYyknaobymCXgih5mmDiJLDt00w8IxjHOJWXt erkdudZfjiQmR8tznZ8IfbGxiopuDL8cR2K5UrvxzP8W8hEWNB6Qh3E7+3Nr0ve8xP6x r3OyR8Y0yu4yhuITXeJLwD/lHkM7LbLhe0sWJ7N5V3gXS0QqFF2IBNt4uW+5c6eXK8Ns 5QLw== X-Gm-Message-State: ABy/qLarRS9WCVSp1pitkZ4wokezFC+di0mi9yHD6MJZuHY8L11mc3Nm MMGqftbRZpVwA+ZMQnPJwYkAGNQLB0Y19g== X-Google-Smtp-Source: APBJJlFh4a56rNwkwUjcumYK7jnS8p8Eb7boCgQAypdMEIwuu9KPw86PQJ5kj80sCxp+Oc0fzSds4Q== X-Received: by 2002:a17:90b:3843:b0:263:f4cc:a988 with SMTP id nl3-20020a17090b384300b00263f4cca988mr9527585pjb.5.1688992377431; Mon, 10 Jul 2023 05:32:57 -0700 (PDT) Received: from toolbox.alistair23.me (2403-580b-97e8-0-321-6fb2-58f1-a1b1.ip6.aussiebb.net. [2403:580b:97e8:0:321:6fb2:58f1:a1b1]) by smtp.gmail.com with ESMTPSA id i126-20020a639d84000000b0055b44a901absm181559pgd.70.2023.07.10.05.32.54 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 10 Jul 2023 05:32:57 -0700 (PDT) From: Alistair Francis X-Google-Original-From: Alistair Francis To: qemu-devel@nongnu.org Cc: alistair23@gmail.com, Weiwei Li , Junqiang Wang , Daniel Henrique Barboza , Alistair Francis Subject: [PULL 11/54] target/riscv: Remove redundant assignment to SXL Date: Mon, 10 Jul 2023 22:31:22 +1000 Message-Id: <20230710123205.2441106-12-alistair.francis@wdc.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230710123205.2441106-1-alistair.francis@wdc.com> References: <20230710123205.2441106-1-alistair.francis@wdc.com> MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::430; envelope-from=alistair23@gmail.com; helo=mail-pf1-x430.google.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 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, FREEMAIL_ENVFROM_END_DIGIT=0.25, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham 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: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org From: Weiwei Li SXL is initialized as env->misa_mxl which is also the mxl value. So we can just remain it unchanged to keep it read-only. Signed-off-by: Weiwei Li Signed-off-by: Junqiang Wang Reviewed-by: Daniel Henrique Barboza Reviewed-by: Alistair Francis Message-Id: <20230603134236.15719-4-liweiwei@iscas.ac.cn> Signed-off-by: Alistair Francis --- target/riscv/csr.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/target/riscv/csr.c b/target/riscv/csr.c index 6ac11d1f11..25345f3153 100644 --- a/target/riscv/csr.c +++ b/target/riscv/csr.c @@ -1321,10 +1321,6 @@ static RISCVException write_mstatus(CPURISCVState *env, int csrno, mstatus = (mstatus & ~mask) | (val & mask); - if (xl > MXL_RV32) { - /* SXL field is for now read only */ - mstatus = set_field(mstatus, MSTATUS64_SXL, xl); - } env->mstatus = mstatus; /*