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 X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B2013C433E0 for ; Mon, 1 Mar 2021 09:13:59 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 1218264E01 for ; Mon, 1 Mar 2021 09:13:59 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 1218264E01 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=suse.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:37412 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lGecn-0007pL-Vf for qemu-devel@archiver.kernel.org; Mon, 01 Mar 2021 04:13:57 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:49794) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lGeKv-0005BS-PC for qemu-devel@nongnu.org; Mon, 01 Mar 2021 03:55:29 -0500 Received: from mx2.suse.de ([195.135.220.15]:58240) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lGeKm-0000JI-0k for qemu-devel@nongnu.org; Mon, 01 Mar 2021 03:55:29 -0500 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id 553BCB039; Mon, 1 Mar 2021 08:55:06 +0000 (UTC) From: Claudio Fontana To: Paolo Bonzini , Richard Henderson , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Eduardo Habkost , Peter Maydell , =?UTF-8?q?Alex=20Benn=C3=A9e?= Subject: [PATCH v26 14/20] i386: separate fpu_helper sysemu-only parts Date: Mon, 1 Mar 2021 09:54:44 +0100 Message-Id: <20210301085450.1732-15-cfontana@suse.de> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20210301085450.1732-1-cfontana@suse.de> References: <20210301085450.1732-1-cfontana@suse.de> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=195.135.220.15; envelope-from=cfontana@suse.de; helo=mx2.suse.de X-Spam_score_int: -41 X-Spam_score: -4.2 X-Spam_bar: ---- X-Spam_report: (-4.2 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, 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: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Laurent Vivier , Thomas Huth , Roman Bolshakov , Claudio Fontana , qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" create a separate tcg/sysemu/fpu_helper.c for the sysemu-only parts. For user mode, some small #ifdefs remain in tcg/fpu_helper.c which do not seem worth splitting into their own user-mode module. Signed-off-by: Claudio Fontana Reviewed-by: Richard Henderson --- target/i386/cpu.h | 3 ++ target/i386/tcg/fpu_helper.c | 41 +-------------------- target/i386/tcg/sysemu/fpu_helper.c | 57 +++++++++++++++++++++++++++++ target/i386/tcg/sysemu/meson.build | 1 + 4 files changed, 63 insertions(+), 39 deletions(-) create mode 100644 target/i386/tcg/sysemu/fpu_helper.c diff --git a/target/i386/cpu.h b/target/i386/cpu.h index c8a84a9033..3797789dc2 100644 --- a/target/i386/cpu.h +++ b/target/i386/cpu.h @@ -1816,7 +1816,10 @@ int cpu_x86_support_mca_broadcast(CPUX86State *env); int cpu_get_pic_interrupt(CPUX86State *s); /* MSDOS compatibility mode FPU exception support */ void x86_register_ferr_irq(qemu_irq irq); +void fpu_check_raise_ferr_irq(CPUX86State *s); void cpu_set_ignne(void); +void cpu_clear_ignne(void); + /* mpx_helper.c */ void cpu_sync_bndcs_hflags(CPUX86State *env); diff --git a/target/i386/tcg/fpu_helper.c b/target/i386/tcg/fpu_helper.c index 20e4d2e715..1b30f1bb73 100644 --- a/target/i386/tcg/fpu_helper.c +++ b/target/i386/tcg/fpu_helper.c @@ -21,17 +21,10 @@ #include #include "cpu.h" #include "exec/helper-proto.h" -#include "qemu/host-utils.h" -#include "exec/exec-all.h" -#include "exec/cpu_ldst.h" #include "fpu/softfloat.h" #include "fpu/softfloat-macros.h" #include "helper-tcg.h" -#ifdef CONFIG_SOFTMMU -#include "hw/irq.h" -#endif - /* float macros */ #define FT0 (env->ft0) #define ST0 (env->fpregs[env->fpstt].d) @@ -75,36 +68,6 @@ #define floatx80_ln2_d make_floatx80(0x3ffe, 0xb17217f7d1cf79abLL) #define floatx80_pi_d make_floatx80(0x4000, 0xc90fdaa22168c234LL) -#if !defined(CONFIG_USER_ONLY) -static qemu_irq ferr_irq; - -void x86_register_ferr_irq(qemu_irq irq) -{ - ferr_irq = irq; -} - -static void cpu_clear_ignne(void) -{ - CPUX86State *env = &X86_CPU(first_cpu)->env; - env->hflags2 &= ~HF2_IGNNE_MASK; -} - -void cpu_set_ignne(void) -{ - CPUX86State *env = &X86_CPU(first_cpu)->env; - env->hflags2 |= HF2_IGNNE_MASK; - /* - * We get here in response to a write to port F0h. The chipset should - * deassert FP_IRQ and FERR# instead should stay signaled until FPSW_SE is - * cleared, because FERR# and FP_IRQ are two separate pins on real - * hardware. However, we don't model FERR# as a qemu_irq, so we just - * do directly what the chipset would do, i.e. deassert FP_IRQ. - */ - qemu_irq_lower(ferr_irq); -} -#endif - - static inline void fpush(CPUX86State *env) { env->fpstt = (env->fpstt - 1) & 7; @@ -202,8 +165,8 @@ static void fpu_raise_exception(CPUX86State *env, uintptr_t retaddr) raise_exception_ra(env, EXCP10_COPR, retaddr); } #if !defined(CONFIG_USER_ONLY) - else if (ferr_irq && !(env->hflags2 & HF2_IGNNE_MASK)) { - qemu_irq_raise(ferr_irq); + else { + fpu_check_raise_ferr_irq(env); } #endif } diff --git a/target/i386/tcg/sysemu/fpu_helper.c b/target/i386/tcg/sysemu/fpu_helper.c new file mode 100644 index 0000000000..1c3610da3b --- /dev/null +++ b/target/i386/tcg/sysemu/fpu_helper.c @@ -0,0 +1,57 @@ +/* + * x86 FPU, MMX/3DNow!/SSE/SSE2/SSE3/SSSE3/SSE4/PNI helpers (sysemu code) + * + * Copyright (c) 2003 Fabrice Bellard + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, see . + */ + +#include "qemu/osdep.h" +#include "cpu.h" +#include "hw/irq.h" + +static qemu_irq ferr_irq; + +void x86_register_ferr_irq(qemu_irq irq) +{ + ferr_irq = irq; +} + +void fpu_check_raise_ferr_irq(CPUX86State *env) +{ + if (ferr_irq && !(env->hflags2 & HF2_IGNNE_MASK)) { + qemu_irq_raise(ferr_irq); + return; + } +} + +void cpu_clear_ignne(void) +{ + CPUX86State *env = &X86_CPU(first_cpu)->env; + env->hflags2 &= ~HF2_IGNNE_MASK; +} + +void cpu_set_ignne(void) +{ + CPUX86State *env = &X86_CPU(first_cpu)->env; + env->hflags2 |= HF2_IGNNE_MASK; + /* + * We get here in response to a write to port F0h. The chipset should + * deassert FP_IRQ and FERR# instead should stay signaled until FPSW_SE is + * cleared, because FERR# and FP_IRQ are two separate pins on real + * hardware. However, we don't model FERR# as a qemu_irq, so we just + * do directly what the chipset would do, i.e. deassert FP_IRQ. + */ + qemu_irq_lower(ferr_irq); +} diff --git a/target/i386/tcg/sysemu/meson.build b/target/i386/tcg/sysemu/meson.build index b2aaab6eef..f84519a213 100644 --- a/target/i386/tcg/sysemu/meson.build +++ b/target/i386/tcg/sysemu/meson.build @@ -4,4 +4,5 @@ i386_softmmu_ss.add(when: ['CONFIG_TCG', 'CONFIG_SOFTMMU'], if_true: files( 'excp_helper.c', 'bpt_helper.c', 'misc_helper.c', + 'fpu_helper.c', )) -- 2.26.2