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[2001:8b0:1d0::2]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-432a3688813sm16354555e9.1.2024.11.05.03.19.46 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 05 Nov 2024 03:19:46 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1730805587; x=1731410387; darn=nongnu.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:to:from:from:to:cc:subject:date:message-id :reply-to; bh=QD6Lc/I6xdPJ52+g1i8fO338zKT4nqacusp7y0oQIcc=; b=sicNZKRHrhkfNYHpLjBwqB9ZQjhKlcUGzHxhNqUKAtsbbYWNa9b3WeApzqjknbGVXG llqjMzkC2VVvcyRivAwaotIp64S9mVbnGXLhTsvSHGWM+ALei0I/XaBlWBDdtdEUtz11 FmJYmGSeZDwKLou1t8Vz4gxMshewtF5VkQz7i5DzPSQ1AJNTJbbsXeEZydKS6uPDS4to HS6ghoeOqfQFR2w7KeiA/1qzJvrpSGVmHoAbMLmc9f3mKbVJyiUs7CbBRVBe5CIDZUIl bgdB72lggi8/0MK/cnTQkGo8gH+LulsUF6LxKq8vrEQdXUqsN8kvZmXK0UXqY07pwdOS blGQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1730805587; x=1731410387; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=QD6Lc/I6xdPJ52+g1i8fO338zKT4nqacusp7y0oQIcc=; b=V8uKON2o7jA6FgbQzYjDe8XoWm5qsTmljTmSDpAAMk80ScCh1C8F8qg4dgchCiOc/c 7cko+PvWIw5NjMyeD7NYf1eAL7/v9Djp6tkXCXmKiGihIoscbbNanvrCQtuk/uZWmls3 3Tk7hFW3rPuNdvkH0ulkTgp1GwDCWdZlmBEYBY9bUpNX2M0+Sy+jwDVLwijY9IFkWQ1E pQ3NWmvdll9EoUbhrtrfurdpvX37QESkMFhnqsZ8jWAVRjxcJ2iv4bTmhCv4v0Wbs1u7 /QGC4wl8iTAm0ytwWFgBSNlIacP/DBh7vPVix05E1CmwN7gNDBkznY7+HJDBuW4Ah1lo nfJA== X-Gm-Message-State: AOJu0Yx9yIYDLSJPZF0sxwjRa6sIGNDUgMMZVA6A96d8DGKbHVoX7JZ/ EBoAeVWq7/02qRl5w3fBDgifTlLmwEGnfJ737zEeP5QnM8t48xSIzKK100Nb8iNUrIc/yVaGvyu O X-Google-Smtp-Source: AGHT+IH0FgwKmDhBx+H+hKWmuPuZ6OakkHkQfyaB+B7+3daicMuI3K4jRHZd9d/xh6lWJFyor7dccw== X-Received: by 2002:a05:600c:a02:b0:431:15f1:421d with SMTP id 5b1f17b1804b1-432830a14b7mr129407135e9.16.1730805586993; Tue, 05 Nov 2024 03:19:46 -0800 (PST) From: Peter Maydell To: qemu-devel@nongnu.org Subject: [PULL 17/31] target/microblaze: Move setting of float rounding mode to reset Date: Tue, 5 Nov 2024 11:19:21 +0000 Message-Id: <20241105111935.2747034-18-peter.maydell@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20241105111935.2747034-1-peter.maydell@linaro.org> References: <20241105111935.2747034-1-peter.maydell@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable 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=2a00:1450:4864:20::332; envelope-from=peter.maydell@linaro.org; helo=mail-wm1-x332.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=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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1730805640947116600 Content-Type: text/plain; charset="utf-8" Although the floating point rounding mode for Microblaze is always nearest-even, we cannot set it just once in the CPU initfn. This is because env->fp_status is in the part of the CPU state struct that is zeroed on reset. Move the call to set_float_rounding_mode() into the reset fn. (This had no guest-visible effects because it happens that the float_round_nearest_even enum value is 0, so when the struct was zeroed it didn't corrupt the setting.) Signed-off-by: Peter Maydell Reviewed-by: Richard Henderson Message-id: 20241025141254.2141506-18-peter.maydell@linaro.org --- target/microblaze/cpu.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/target/microblaze/cpu.c b/target/microblaze/cpu.c index 135947ee800..6329a774331 100644 --- a/target/microblaze/cpu.c +++ b/target/microblaze/cpu.c @@ -201,6 +201,8 @@ static void mb_cpu_reset_hold(Object *obj, ResetType ty= pe) =20 env->pc =3D cpu->cfg.base_vectors; =20 + set_float_rounding_mode(float_round_nearest_even, &env->fp_status); + #if defined(CONFIG_USER_ONLY) /* start in user mode with interrupts enabled. */ mb_cpu_write_msr(env, MSR_EE | MSR_IE | MSR_VM | MSR_UM); @@ -311,15 +313,12 @@ static void mb_cpu_realizefn(DeviceState *dev, Error = **errp) static void mb_cpu_initfn(Object *obj) { MicroBlazeCPU *cpu =3D MICROBLAZE_CPU(obj); - CPUMBState *env =3D &cpu->env; =20 gdb_register_coprocessor(CPU(cpu), mb_cpu_gdb_read_stack_protect, mb_cpu_gdb_write_stack_protect, gdb_find_static_feature("microblaze-stack-pro= tect.xml"), 0); =20 - set_float_rounding_mode(float_round_nearest_even, &env->fp_status); - #ifndef CONFIG_USER_ONLY /* Inbound IRQ and FIR lines */ qdev_init_gpio_in(DEVICE(cpu), microblaze_cpu_set_irq, 2); --=20 2.34.1