From mboxrd@z Thu Jan 1 00:00:00 1970 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 11E1BC433F5 for ; Thu, 17 Mar 2022 05:51:08 +0000 (UTC) Received: from localhost ([::1]:48986 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nUj2Q-0003rl-W2 for qemu-devel@archiver.kernel.org; Thu, 17 Mar 2022 01:51:07 -0400 Received: from eggs.gnu.org ([209.51.188.92]:50972) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nUiKs-0001J0-84 for qemu-devel@nongnu.org; Thu, 17 Mar 2022 01:06:07 -0400 Received: from [2607:f8b0:4864:20::102b] (port=41524 helo=mail-pj1-x102b.google.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1nUiKq-0002H2-Qp for qemu-devel@nongnu.org; Thu, 17 Mar 2022 01:06:05 -0400 Received: by mail-pj1-x102b.google.com with SMTP id l4-20020a17090a49c400b001c6840df4a3so675561pjm.0 for ; Wed, 16 Mar 2022 22:06:04 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=kC6IYNjsGbxQ1O1vqjxYEFxpw4YN+TjfQjKfECaeneY=; b=kJ0Y7HEYKbNdPW8liQQ5iRDrIhi9hCabwJN5Egj7VfvJI3apLC8ZnEupX0rJ8kNeiL iYIAuQOnptEaSoavex+2GjCuBicw44CtF42SQfvhYeq6Q1FEz5pW5nakZmNEzG7rAYf7 JIiaF65e+wnpqz3TMothlTDxDn3ZVB+CXWzEfGr4V7k3GfooWRFsJSgdGqPC1Sge8FQc HfXAJu2JAgpv12lX6RhDAIsfH2odeOIK0vHdzVocUeUO/sm1PCR5PoJy5h+0xmcEL7vE 8VBHwAMcROc3k2BCk942J45bRURS0HPKdzquID7zS3JbhgPy6zsKbL0TEtNHysi3oJVB uZtA== 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=kC6IYNjsGbxQ1O1vqjxYEFxpw4YN+TjfQjKfECaeneY=; b=1WvmQ9cqLTjmJcMZ1bUw98OpsHg76gJfT3Pl0cYs2lAU0FHH44UaTVr5KkeYBb98OT GH1QBFH0Dmtb0HviYrC1/Z4hCX/TZDEUDyffKoBRAwG9iD46Tzt5fi1TFyC7zTI/aLXu X60HuZgF58FeOSXHCYGYnLLvsQfWVl8eN+FCr9z1GesouXLTzXBOmVM1iQf7Q8UBPlSs 4eGOmaXhusWSI2bacpN8UYeL3lbrEajtv6mhxcqBdz3meBpRh5TuGD2oOtkPR5L1x9zr DYm+HJWTUeuHFg4j3oFiMwb2CPUAOSPi/F3i11xpT4rlJUiNDhLXs6sZ5X28jhQuEvqd jlWQ== X-Gm-Message-State: AOAM53041Z4ZPaU/UG01BDvRO2orwBC3GqqASHS0Lpd+mRZBG/xhO5oI K6e8R/AFcrVD5QSIqSgNrkQ7pqsBalHaVg== X-Google-Smtp-Source: ABdhPJzWFt9ouedKWm0UolL7cN/glf8QdAOReApphDymAaTuVjeHniXXo4vTQQUSufoiFQEg9Ojj1g== X-Received: by 2002:a17:90a:6393:b0:1bf:70e7:27d2 with SMTP id f19-20020a17090a639300b001bf70e727d2mr13737240pjj.1.1647493563508; Wed, 16 Mar 2022 22:06:03 -0700 (PDT) Received: from localhost.localdomain (174-21-142-130.tukw.qwest.net. [174.21.142.130]) by smtp.gmail.com with ESMTPSA id h22-20020a056a001a5600b004f7c17b291asm5101357pfv.87.2022.03.16.22.06.02 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 16 Mar 2022 22:06:03 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PATCH for-7.1 v6 24/51] target/nios2: Cleanup set of CR_EXCEPTION for do_interrupt Date: Wed, 16 Mar 2022 22:05:11 -0700 Message-Id: <20220317050538.924111-25-richard.henderson@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220317050538.924111-1-richard.henderson@linaro.org> References: <20220317050538.924111-1-richard.henderson@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Host-Lookup-Failed: Reverse DNS lookup failed for 2607:f8b0:4864:20::102b (failed) Received-SPF: pass client-ip=2607:f8b0:4864:20::102b; envelope-from=richard.henderson@linaro.org; helo=mail-pj1-x102b.google.com X-Spam_score_int: -6 X-Spam_score: -0.7 X-Spam_bar: / X-Spam_report: (-0.7 / 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, PDS_HP_HELO_NORDNS=0.659, RCVD_IN_DNSWL_NONE=-0.0001, RDNS_NONE=0.793, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 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: marex@denx.de, amir.gonnen@neuroblade.ai Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" The register is entirely read-only for software, and we do not implement ECC, so we need not deposit the cause into an existing value; just create a new value from scratch. Furthermore, exception.CAUSE is not written for break exceptions. Signed-off-by: Richard Henderson --- target/nios2/helper.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/target/nios2/helper.c b/target/nios2/helper.c index 0392c0ea84..afbafd1fdc 100644 --- a/target/nios2/helper.c +++ b/target/nios2/helper.c @@ -74,9 +74,10 @@ static void do_exception(Nios2CPU *cpu, uint32_t exception_addr, bool is_break) new_status &= ~(CR_STATUS_PIE | CR_STATUS_U); env->ctrl[CR_STATUS] = new_status; - env->ctrl[CR_EXCEPTION] = FIELD_DP32(env->ctrl[CR_EXCEPTION], - CR_EXCEPTION, CAUSE, - cs->exception_index); + if (!is_break) { + env->ctrl[CR_EXCEPTION] = FIELD_DP32(0, CR_EXCEPTION, CAUSE, + cs->exception_index); + } env->pc = exception_addr; } -- 2.25.1