From nobody Sun Sep 29 02:23:38 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org ARC-Seal: i=1; a=rsa-sha256; t=1614250960; cv=none; d=zohomail.com; s=zohoarc; b=JOVwxc6sXqBKK2g0OqwBoS5+N1jCF5HbgLP0624/3FLDtinpEaUeoVHEGiulBMJPEgnZOJ0yMW1TvV+VP4jpPkWtaS195Q8kEXk55t755gOMV++aw1kihKGg8JXmmURRzQ4J2U//lxDFxRIJaiesITXufOYUBrSdLL8FRdjmdQs= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1614250960; h=Content-Type:Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=9Jd9NzexeFUb4f6SaKcN436zrtaenzVxujQbhJEz0pk=; b=eB9RD7tz71qoCjnVYfd40DCZO6WgkbImK8iPDvqgp5JKJpmNb7ZBKk7ypNgFNLSjbIt8GN7B1inDXZ24I5yZ6f4UvjNbd24BeA+4cKGU9FTWAwCoiAY0Mly+waMyNjMoEv6LTdg47a46p6u46I+NCBgKUa85kbhragBDScDTPFI= ARC-Authentication-Results: i=1; mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1614250960753667.6348232310557; Thu, 25 Feb 2021 03:02:40 -0800 (PST) Received: from localhost ([::1]:54102 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lFEPn-0001SJ-Eg for importer@patchew.org; Thu, 25 Feb 2021 06:02:39 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:53126) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lFEDh-0002aO-0a for qemu-devel@nongnu.org; Thu, 25 Feb 2021 05:50:10 -0500 Received: from mx2.suse.de ([195.135.220.15]:40920) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lFEDd-0003OM-8c for qemu-devel@nongnu.org; Thu, 25 Feb 2021 05:50:08 -0500 Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id 18F58ADDC; Thu, 25 Feb 2021 10:49:52 +0000 (UTC) X-Virus-Scanned: by amavisd-new at test-mx.suse.de 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 v23 12/17] i386: separate fpu_helper into user and sysemu parts Date: Thu, 25 Feb 2021 11:49:36 +0100 Message-Id: <20210225104941.15688-13-cfontana@suse.de> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20210225104941.15688-1-cfontana@suse.de> References: <20210225104941.15688-1-cfontana@suse.de> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" 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=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=0.001, RCVD_IN_MSPIKE_WL=0.001, 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+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Signed-off-by: Claudio Fontana Reviewed-by: Alex Benn=C3=A9e [claudio: removed unused return value] Signed-off-by: Claudio Fontana --- target/i386/cpu.h | 3 ++ target/i386/tcg/fpu_helper.c | 65 +---------------------------- target/i386/tcg/sysemu/fpu_helper.c | 57 +++++++++++++++++++++++++ target/i386/tcg/user/fpu_helper.c | 58 +++++++++++++++++++++++++ target/i386/tcg/sysemu/meson.build | 1 + target/i386/tcg/user/meson.build | 1 + 6 files changed, 122 insertions(+), 63 deletions(-) create mode 100644 target/i386/tcg/sysemu/fpu_helper.c create mode 100644 target/i386/tcg/user/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); =20 diff --git a/target/i386/tcg/fpu_helper.c b/target/i386/tcg/fpu_helper.c index 60ed93520a..ade18aa13c 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" =20 -#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) =20 -#if !defined(CONFIG_USER_ONLY) -static qemu_irq ferr_irq; - -void x86_register_ferr_irq(qemu_irq irq) -{ - ferr_irq =3D irq; -} - -static void cpu_clear_ignne(void) -{ - CPUX86State *env =3D &X86_CPU(first_cpu)->env; - env->hflags2 &=3D ~HF2_IGNNE_MASK; -} - -void cpu_set_ignne(void) -{ - CPUX86State *env =3D &X86_CPU(first_cpu)->env; - env->hflags2 |=3D 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_S= E 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 =3D (env->fpstt - 1) & 7; @@ -203,8 +166,8 @@ static void fpu_raise_exception(CPUX86State *env, uintp= tr_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 } @@ -2501,18 +2464,6 @@ void helper_frstor(CPUX86State *env, target_ulong pt= r, int data32) } } =20 -#if defined(CONFIG_USER_ONLY) -void cpu_x86_fsave(CPUX86State *env, target_ulong ptr, int data32) -{ - helper_fsave(env, ptr, data32); -} - -void cpu_x86_frstor(CPUX86State *env, target_ulong ptr, int data32) -{ - helper_frstor(env, ptr, data32); -} -#endif - #define XO(X) offsetof(X86XSaveArea, X) =20 static void do_xsave_fpu(CPUX86State *env, target_ulong ptr, uintptr_t ra) @@ -2780,18 +2731,6 @@ void helper_fxrstor(CPUX86State *env, target_ulong p= tr) } } =20 -#if defined(CONFIG_USER_ONLY) -void cpu_x86_fxsave(CPUX86State *env, target_ulong ptr) -{ - helper_fxsave(env, ptr); -} - -void cpu_x86_fxrstor(CPUX86State *env, target_ulong ptr) -{ - helper_fxrstor(env, ptr); -} -#endif - void helper_xrstor(CPUX86State *env, target_ulong ptr, uint64_t rfbm) { uintptr_t ra =3D GETPC(); diff --git a/target/i386/tcg/sysemu/fpu_helper.c b/target/i386/tcg/sysemu/f= pu_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 =3D 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 =3D &X86_CPU(first_cpu)->env; + env->hflags2 &=3D ~HF2_IGNNE_MASK; +} + +void cpu_set_ignne(void) +{ + CPUX86State *env =3D &X86_CPU(first_cpu)->env; + env->hflags2 |=3D 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_S= E 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/user/fpu_helper.c b/target/i386/tcg/user/fpu_h= elper.c new file mode 100644 index 0000000000..a1b96dc51c --- /dev/null +++ b/target/i386/tcg/user/fpu_helper.c @@ -0,0 +1,58 @@ +/* + * x86 FPU, MMX/3DNow!/SSE/SSE2/SSE3/SSSE3/SSE4/PNI helpers (user-mode) + * + * 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 "exec/helper-proto.h" + +/* + * XXX in helper_fsave() we reference GETPC(). Which is only valid when + * directly called from code_gen_buffer. + * + * The signature of cpu_x86_foo should be changed to add a "uintptr_t reta= ddr" + * argument, the callers from linux-user/i386/signal.c must pass 0 for this + * new argument (no unwind required), and the helpers must do + * + * void helper_fsave(CPUX86State *env, target_ulong ptr, int data32) + * { + * cpu_x86_fsave(env, ptr, data32, GETPC()); + * } + * + * etc. + */ + +void cpu_x86_fsave(CPUX86State *env, target_ulong ptr, int data32) +{ + helper_fsave(env, ptr, data32); +} + +void cpu_x86_frstor(CPUX86State *env, target_ulong ptr, int data32) +{ + helper_frstor(env, ptr, data32); +} + +void cpu_x86_fxsave(CPUX86State *env, target_ulong ptr) +{ + helper_fxsave(env, ptr); +} + +void cpu_x86_fxrstor(CPUX86State *env, target_ulong ptr) +{ + helper_fxrstor(env, ptr); +} diff --git a/target/i386/tcg/sysemu/meson.build b/target/i386/tcg/sysemu/me= son.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', )) diff --git a/target/i386/tcg/user/meson.build b/target/i386/tcg/user/meson.= build index 2ab8bd903c..7d919d3bc8 100644 --- a/target/i386/tcg/user/meson.build +++ b/target/i386/tcg/user/meson.build @@ -1,4 +1,5 @@ i386_user_ss.add(when: ['CONFIG_TCG', 'CONFIG_USER_ONLY'], if_true: files( 'excp_helper.c', 'misc_stubs.c', + 'fpu_helper.c', )) --=20 2.26.2