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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6FD78C7EE26; Tue, 2 May 2023 18:57:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229564AbjEBS5x (ORCPT + 1 other); Tue, 2 May 2023 14:57:53 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40404 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229562AbjEBS5w (ORCPT ); Tue, 2 May 2023 14:57:52 -0400 Received: from mail-wr1-x435.google.com (mail-wr1-x435.google.com [IPv6:2a00:1450:4864:20::435]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 773B710C6 for ; Tue, 2 May 2023 11:57:51 -0700 (PDT) Received: by mail-wr1-x435.google.com with SMTP id ffacd0b85a97d-2f7db354092so2629247f8f.2 for ; Tue, 02 May 2023 11:57:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1683053870; x=1685645870; 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=jEF1qi6MMuB+c4HTiM42q+lLMXcDmiJq+W9maCZXnaA=; b=kDBHiS6FPPfleL2cXIDNRnVtSgSb+9dLs6tuBIuhecfoD2tL0SQrTJjrbz6rK2IrZF eWyWPOCTkF/UhEsGuH9PlUW/XFWSDDqmxJ9WMhQfQCuAmtCzUSm8VCFF1eX229r6lPFf zWpXa/Cm8zOiMRK6w7KNK1ahXt3xP+Grb2y4xBUH+SXK/wX514GJm6+j+rN86W1g4M12 9ofy4klE3UV83KQJoRiSv2X2d0ZJybE9SdLLybjW9RvG/r3ElmxQJapSgUXQx/sYSUSi 4CXNZsPDZtd20+kbHHu/LOceGk9bmYZ2SNLLG1P/F4G1vI/xhz7b1cxlVPVZJ7uFufQE Lngg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1683053870; x=1685645870; 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=jEF1qi6MMuB+c4HTiM42q+lLMXcDmiJq+W9maCZXnaA=; b=kYimJNoKGci7dmkhhZwhvVCDdBpFeqUbMoXAoO0sj9rJgbbOcRVOtw9nsaZkB1ogJt Af2+R0gwIo/meujUY1ClkcOwW7Ew5uYEL/AbkbmQzSGqpe/BzC5Vs1kCBUM7IU2W4eeS pn6fXudteH/dIbSJtCPkchb1KGmcNSaSTw2RmroCd9PwE7ZNLBALIjzPjDRXd5Ez5odE VwYuViM4WYDJ1S9ph9XvQEBxyDPaqav+RBZ1fkZ+az3fv/Ww49vhCqiA+ORmZ2nAlFqV DXR63tUsE9E7Pn10UoLJJq4suLgsfcCSP1cU1mYsPqsUz4a75rQjjy3LUMbLPdm4rgc9 RIzg== X-Gm-Message-State: AC+VfDzKsvMjEoxJrfxXzHKAyK0hJ/m0XWK1dlnRWvz8izEkSzQyp9aX MdEdw/VG6nfAA5fH4Uf1dqgdsR9og88= X-Google-Smtp-Source: ACHHUZ4S3dfBdfy774H5DOYO04fbZftVf7nnvy1feT14LQdwK+lxJm6piyX4Alhews/LsFoB0ERmbw== X-Received: by 2002:a5d:460f:0:b0:2d8:47c7:7b50 with SMTP id t15-20020a5d460f000000b002d847c77b50mr11827686wrq.1.1683053869896; Tue, 02 May 2023 11:57:49 -0700 (PDT) Received: from localhost (cpc1-brnt4-2-0-cust862.4-2.cable.virginm.net. [86.9.131.95]) by smtp.gmail.com with ESMTPSA id u12-20020adfdd4c000000b0030635735a57sm3073320wrm.60.2023.05.02.11.57.49 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 02 May 2023 11:57:49 -0700 (PDT) From: Stafford Horne To: QEMU Development Cc: Linux OpenRISC , Stafford Horne Subject: [PATCH 3/3] target/openrisc: Setup FPU for detecting tininess before rounding Date: Tue, 2 May 2023 19:57:31 +0100 Message-Id: <20230502185731.3543420-4-shorne@gmail.com> X-Mailer: git-send-email 2.39.1 In-Reply-To: <20230502185731.3543420-1-shorne@gmail.com> References: <20230502185731.3543420-1-shorne@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-openrisc@vger.kernel.org OpenRISC defines tininess to be detected before rounding. Setup qemu to obey this. Signed-off-by: Stafford Horne --- target/openrisc/cpu.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/target/openrisc/cpu.c b/target/openrisc/cpu.c index 0ce4f796fa..cdbff26fb5 100644 --- a/target/openrisc/cpu.c +++ b/target/openrisc/cpu.c @@ -22,6 +22,7 @@ #include "qemu/qemu-print.h" #include "cpu.h" #include "exec/exec-all.h" +#include "fpu/softfloat-helpers.h" #include "tcg/tcg.h" static void openrisc_cpu_set_pc(CPUState *cs, vaddr value) @@ -90,6 +91,10 @@ static void openrisc_cpu_reset_hold(Object *obj) s->exception_index = -1; cpu_set_fpcsr(&cpu->env, 0); + set_default_nan_mode(1, &cpu->env.fp_status); + set_float_detect_tininess(float_tininess_before_rounding, + &cpu->env.fp_status); + #ifndef CONFIG_USER_ONLY cpu->env.picmr = 0x00000000; cpu->env.picsr = 0x00000000; -- 2.39.1