From nobody Wed Nov 12 03:41:40 2025 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.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; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=redhat.com ARC-Seal: i=1; a=rsa-sha256; t=1567527499; cv=none; d=zoho.com; s=zohoarc; b=IsTb+yztrgkj6w6nPLoY2pAoMyUSEHvbBShP3X17RCZ5Iu1WFicCtHiZbQM1QioL5ivWPc75ubZ0XBUojS3vUE2X3kuUQIpQvJKw75DhKAyxso0b7qGrIqj3spuxkvZHIOi9vLuRpx+MGfDEsoOd4bzRna4+EGLdjoWweaikZbg= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zoho.com; s=zohoarc; t=1567527499; h=Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:Message-ID:References:Sender:Subject:To:ARC-Authentication-Results; bh=kXQEkMNsr/CCGEbSUvdLX/4N2OYrAitXJ1K5ottZGSQ=; b=E/bIIVkluVQKxEtbmsJ2Gy3PKO3X11r7zygBTMIxxQMY9frWRIM/F1kJWVj+ZdZLQLBkezrmF7cPntLJ8pJrseQGgJ5OCFAcc5uolTOduUrlBu7UObbQGf86m5EHBBAJoXDJ8ACOP2PTB/trw533O8djElvwORGFXDCuaSndXic= ARC-Authentication-Results: i=1; mx.zoho.com; spf=pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail header.from= (p=none dis=none) header.from= Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1567527499950262.86185088331376; Tue, 3 Sep 2019 09:18:19 -0700 (PDT) Received: from localhost ([::1]:48692 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1i5BVZ-0000zY-V3 for importer@patchew.org; Tue, 03 Sep 2019 12:18:18 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:33064) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1i5B2k-0004wb-Or for qemu-devel@nongnu.org; Tue, 03 Sep 2019 11:48:32 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1i5B2i-0005Z7-S9 for qemu-devel@nongnu.org; Tue, 03 Sep 2019 11:48:30 -0400 Received: from mx1.redhat.com ([209.132.183.28]:19210) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1i5B2c-0005Qg-A9; Tue, 03 Sep 2019 11:48:24 -0400 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 02822308FC4B; Tue, 3 Sep 2019 15:48:20 +0000 (UTC) Received: from thuth.com (ovpn-117-51.ams2.redhat.com [10.36.117.51]) by smtp.corp.redhat.com (Postfix) with ESMTP id B714419D7A; Tue, 3 Sep 2019 15:48:18 +0000 (UTC) From: Thomas Huth To: qemu-devel@nongnu.org, =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Date: Tue, 3 Sep 2019 17:48:09 +0200 Message-Id: <20190903154810.27365-3-thuth@redhat.com> In-Reply-To: <20190903154810.27365-1-thuth@redhat.com> References: <20190903154810.27365-1-thuth@redhat.com> X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.43]); Tue, 03 Sep 2019 15:48:20 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [RFC PATCH 2/3] target/arm: Move cortex-m related functions to m_helper.c 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: qemu-arm@nongnu.org Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" The next patch is going to make m_helper.c depend on CONFIG_ARM_V7M, so the cortex-m related CPUs won't be usable anymore if CONFIG_ARM_V7M is not enabled. Thus move the functions that create those CPUs into this file, too, so that we do not have unusable CPUs in the binary anymore. Signed-off-by: Thomas Huth --- target/arm/cpu.c | 146 ------------------------------------- target/arm/m_helper.c | 164 ++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 164 insertions(+), 146 deletions(-) diff --git a/target/arm/cpu.c b/target/arm/cpu.c index f1f9eecdc8..d5f0d4af61 100644 --- a/target/arm/cpu.c +++ b/target/arm/cpu.c @@ -462,31 +462,6 @@ bool arm_cpu_exec_interrupt(CPUState *cs, int interrup= t_request) return ret; } =20 -#if !defined(CONFIG_USER_ONLY) || !defined(TARGET_AARCH64) -static bool arm_v7m_cpu_exec_interrupt(CPUState *cs, int interrupt_request) -{ - CPUClass *cc =3D CPU_GET_CLASS(cs); - ARMCPU *cpu =3D ARM_CPU(cs); - CPUARMState *env =3D &cpu->env; - bool ret =3D false; - - /* ARMv7-M interrupt masking works differently than -A or -R. - * There is no FIQ/IRQ distinction. Instead of I and F bits - * masking FIQ and IRQ interrupts, an exception is taken only - * if it is higher priority than the current execution priority - * (which depends on state like BASEPRI, FAULTMASK and the - * currently active exception). - */ - if (interrupt_request & CPU_INTERRUPT_HARD - && (armv7m_nvic_can_take_pending_exception(env->nvic))) { - cs->exception_index =3D EXCP_IRQ; - cc->do_interrupt(cs); - ret =3D true; - } - return ret; -} -#endif - void arm_cpu_update_virq(ARMCPU *cpu) { /* @@ -1881,119 +1856,6 @@ static void arm11mpcore_initfn(Object *obj) cpu->reset_auxcr =3D 1; } =20 -static void cortex_m0_initfn(Object *obj) -{ - ARMCPU *cpu =3D ARM_CPU(obj); - set_feature(&cpu->env, ARM_FEATURE_V6); - set_feature(&cpu->env, ARM_FEATURE_M); - - cpu->midr =3D 0x410cc200; -} - -static void cortex_m3_initfn(Object *obj) -{ - ARMCPU *cpu =3D ARM_CPU(obj); - set_feature(&cpu->env, ARM_FEATURE_V7); - set_feature(&cpu->env, ARM_FEATURE_M); - set_feature(&cpu->env, ARM_FEATURE_M_MAIN); - cpu->midr =3D 0x410fc231; - cpu->pmsav7_dregion =3D 8; - cpu->id_pfr0 =3D 0x00000030; - cpu->id_pfr1 =3D 0x00000200; - cpu->id_dfr0 =3D 0x00100000; - cpu->id_afr0 =3D 0x00000000; - cpu->id_mmfr0 =3D 0x00000030; - cpu->id_mmfr1 =3D 0x00000000; - cpu->id_mmfr2 =3D 0x00000000; - cpu->id_mmfr3 =3D 0x00000000; - cpu->isar.id_isar0 =3D 0x01141110; - cpu->isar.id_isar1 =3D 0x02111000; - cpu->isar.id_isar2 =3D 0x21112231; - cpu->isar.id_isar3 =3D 0x01111110; - cpu->isar.id_isar4 =3D 0x01310102; - cpu->isar.id_isar5 =3D 0x00000000; - cpu->isar.id_isar6 =3D 0x00000000; -} - -static void cortex_m4_initfn(Object *obj) -{ - ARMCPU *cpu =3D ARM_CPU(obj); - - set_feature(&cpu->env, ARM_FEATURE_V7); - set_feature(&cpu->env, ARM_FEATURE_M); - set_feature(&cpu->env, ARM_FEATURE_M_MAIN); - set_feature(&cpu->env, ARM_FEATURE_THUMB_DSP); - set_feature(&cpu->env, ARM_FEATURE_VFP4); - cpu->midr =3D 0x410fc240; /* r0p0 */ - cpu->pmsav7_dregion =3D 8; - cpu->isar.mvfr0 =3D 0x10110021; - cpu->isar.mvfr1 =3D 0x11000011; - cpu->isar.mvfr2 =3D 0x00000000; - cpu->id_pfr0 =3D 0x00000030; - cpu->id_pfr1 =3D 0x00000200; - cpu->id_dfr0 =3D 0x00100000; - cpu->id_afr0 =3D 0x00000000; - cpu->id_mmfr0 =3D 0x00000030; - cpu->id_mmfr1 =3D 0x00000000; - cpu->id_mmfr2 =3D 0x00000000; - cpu->id_mmfr3 =3D 0x00000000; - cpu->isar.id_isar0 =3D 0x01141110; - cpu->isar.id_isar1 =3D 0x02111000; - cpu->isar.id_isar2 =3D 0x21112231; - cpu->isar.id_isar3 =3D 0x01111110; - cpu->isar.id_isar4 =3D 0x01310102; - cpu->isar.id_isar5 =3D 0x00000000; - cpu->isar.id_isar6 =3D 0x00000000; -} - -static void cortex_m33_initfn(Object *obj) -{ - ARMCPU *cpu =3D ARM_CPU(obj); - - set_feature(&cpu->env, ARM_FEATURE_V8); - set_feature(&cpu->env, ARM_FEATURE_M); - set_feature(&cpu->env, ARM_FEATURE_M_MAIN); - set_feature(&cpu->env, ARM_FEATURE_M_SECURITY); - set_feature(&cpu->env, ARM_FEATURE_THUMB_DSP); - set_feature(&cpu->env, ARM_FEATURE_VFP4); - cpu->midr =3D 0x410fd213; /* r0p3 */ - cpu->pmsav7_dregion =3D 16; - cpu->sau_sregion =3D 8; - cpu->isar.mvfr0 =3D 0x10110021; - cpu->isar.mvfr1 =3D 0x11000011; - cpu->isar.mvfr2 =3D 0x00000040; - cpu->id_pfr0 =3D 0x00000030; - cpu->id_pfr1 =3D 0x00000210; - cpu->id_dfr0 =3D 0x00200000; - cpu->id_afr0 =3D 0x00000000; - cpu->id_mmfr0 =3D 0x00101F40; - cpu->id_mmfr1 =3D 0x00000000; - cpu->id_mmfr2 =3D 0x01000000; - cpu->id_mmfr3 =3D 0x00000000; - cpu->isar.id_isar0 =3D 0x01101110; - cpu->isar.id_isar1 =3D 0x02212000; - cpu->isar.id_isar2 =3D 0x20232232; - cpu->isar.id_isar3 =3D 0x01111131; - cpu->isar.id_isar4 =3D 0x01310132; - cpu->isar.id_isar5 =3D 0x00000000; - cpu->isar.id_isar6 =3D 0x00000000; - cpu->clidr =3D 0x00000000; - cpu->ctr =3D 0x8000c000; -} - -static void arm_v7m_class_init(ObjectClass *oc, void *data) -{ - ARMCPUClass *acc =3D ARM_CPU_CLASS(oc); - CPUClass *cc =3D CPU_CLASS(oc); - - acc->info =3D data; -#ifndef CONFIG_USER_ONLY - cc->do_interrupt =3D arm_v7m_cpu_do_interrupt; -#endif - - cc->cpu_exec_interrupt =3D arm_v7m_cpu_exec_interrupt; -} - static const ARMCPRegInfo cortexr5_cp_reginfo[] =3D { /* Dummy the TCM region regs for the moment */ { .name =3D "ATCM", .cp =3D 15, .opc1 =3D 0, .crn =3D 9, .crm =3D 1, .= opc2 =3D 0, @@ -2518,14 +2380,6 @@ static const ARMCPUInfo arm_cpus[] =3D { { .name =3D "arm1136", .initfn =3D arm1136_initfn }, { .name =3D "arm1176", .initfn =3D arm1176_initfn }, { .name =3D "arm11mpcore", .initfn =3D arm11mpcore_initfn }, - { .name =3D "cortex-m0", .initfn =3D cortex_m0_initfn, - .class_init =3D arm_v7m_class_init }, - { .name =3D "cortex-m3", .initfn =3D cortex_m3_initfn, - .class_init =3D arm_v7m_class_init }, - { .name =3D "cortex-m4", .initfn =3D cortex_m4_initfn, - .class_init =3D arm_v7m_class_init }, - { .name =3D "cortex-m33", .initfn =3D cortex_m33_initfn, - .class_init =3D arm_v7m_class_init }, { .name =3D "cortex-r5", .initfn =3D cortex_r5_initfn }, { .name =3D "cortex-r5f", .initfn =3D cortex_r5f_initfn }, { .name =3D "cortex-a7", .initfn =3D cortex_a7_initfn }, diff --git a/target/arm/m_helper.c b/target/arm/m_helper.c index 884d35d2b0..9fd675b437 100644 --- a/target/arm/m_helper.c +++ b/target/arm/m_helper.c @@ -2691,3 +2691,167 @@ ARMMMUIdx arm_v7m_mmu_idx_for_secstate(CPUARMState = *env, bool secstate) =20 return arm_v7m_mmu_idx_for_secstate_and_priv(env, secstate, priv); } + +#if !defined(CONFIG_USER_ONLY) || !defined(TARGET_AARCH64) + +static bool arm_v7m_cpu_exec_interrupt(CPUState *cs, int interrupt_request) +{ + CPUClass *cc =3D CPU_GET_CLASS(cs); + ARMCPU *cpu =3D ARM_CPU(cs); + CPUARMState *env =3D &cpu->env; + bool ret =3D false; + + /* ARMv7-M interrupt masking works differently than -A or -R. + * There is no FIQ/IRQ distinction. Instead of I and F bits + * masking FIQ and IRQ interrupts, an exception is taken only + * if it is higher priority than the current execution priority + * (which depends on state like BASEPRI, FAULTMASK and the + * currently active exception). + */ + if (interrupt_request & CPU_INTERRUPT_HARD + && (armv7m_nvic_can_take_pending_exception(env->nvic))) { + cs->exception_index =3D EXCP_IRQ; + cc->do_interrupt(cs); + ret =3D true; + } + return ret; +} + +static void cortex_m0_initfn(Object *obj) +{ + ARMCPU *cpu =3D ARM_CPU(obj); + set_feature(&cpu->env, ARM_FEATURE_V6); + set_feature(&cpu->env, ARM_FEATURE_M); + + cpu->midr =3D 0x410cc200; +} + +static void cortex_m3_initfn(Object *obj) +{ + ARMCPU *cpu =3D ARM_CPU(obj); + set_feature(&cpu->env, ARM_FEATURE_V7); + set_feature(&cpu->env, ARM_FEATURE_M); + set_feature(&cpu->env, ARM_FEATURE_M_MAIN); + cpu->midr =3D 0x410fc231; + cpu->pmsav7_dregion =3D 8; + cpu->id_pfr0 =3D 0x00000030; + cpu->id_pfr1 =3D 0x00000200; + cpu->id_dfr0 =3D 0x00100000; + cpu->id_afr0 =3D 0x00000000; + cpu->id_mmfr0 =3D 0x00000030; + cpu->id_mmfr1 =3D 0x00000000; + cpu->id_mmfr2 =3D 0x00000000; + cpu->id_mmfr3 =3D 0x00000000; + cpu->isar.id_isar0 =3D 0x01141110; + cpu->isar.id_isar1 =3D 0x02111000; + cpu->isar.id_isar2 =3D 0x21112231; + cpu->isar.id_isar3 =3D 0x01111110; + cpu->isar.id_isar4 =3D 0x01310102; + cpu->isar.id_isar5 =3D 0x00000000; + cpu->isar.id_isar6 =3D 0x00000000; +} + +static void cortex_m4_initfn(Object *obj) +{ + ARMCPU *cpu =3D ARM_CPU(obj); + + set_feature(&cpu->env, ARM_FEATURE_V7); + set_feature(&cpu->env, ARM_FEATURE_M); + set_feature(&cpu->env, ARM_FEATURE_M_MAIN); + set_feature(&cpu->env, ARM_FEATURE_THUMB_DSP); + set_feature(&cpu->env, ARM_FEATURE_VFP4); + cpu->midr =3D 0x410fc240; /* r0p0 */ + cpu->pmsav7_dregion =3D 8; + cpu->isar.mvfr0 =3D 0x10110021; + cpu->isar.mvfr1 =3D 0x11000011; + cpu->isar.mvfr2 =3D 0x00000000; + cpu->id_pfr0 =3D 0x00000030; + cpu->id_pfr1 =3D 0x00000200; + cpu->id_dfr0 =3D 0x00100000; + cpu->id_afr0 =3D 0x00000000; + cpu->id_mmfr0 =3D 0x00000030; + cpu->id_mmfr1 =3D 0x00000000; + cpu->id_mmfr2 =3D 0x00000000; + cpu->id_mmfr3 =3D 0x00000000; + cpu->isar.id_isar0 =3D 0x01141110; + cpu->isar.id_isar1 =3D 0x02111000; + cpu->isar.id_isar2 =3D 0x21112231; + cpu->isar.id_isar3 =3D 0x01111110; + cpu->isar.id_isar4 =3D 0x01310102; + cpu->isar.id_isar5 =3D 0x00000000; + cpu->isar.id_isar6 =3D 0x00000000; +} + +static void cortex_m33_initfn(Object *obj) +{ + ARMCPU *cpu =3D ARM_CPU(obj); + + set_feature(&cpu->env, ARM_FEATURE_V8); + set_feature(&cpu->env, ARM_FEATURE_M); + set_feature(&cpu->env, ARM_FEATURE_M_MAIN); + set_feature(&cpu->env, ARM_FEATURE_M_SECURITY); + set_feature(&cpu->env, ARM_FEATURE_THUMB_DSP); + set_feature(&cpu->env, ARM_FEATURE_VFP4); + cpu->midr =3D 0x410fd213; /* r0p3 */ + cpu->pmsav7_dregion =3D 16; + cpu->sau_sregion =3D 8; + cpu->isar.mvfr0 =3D 0x10110021; + cpu->isar.mvfr1 =3D 0x11000011; + cpu->isar.mvfr2 =3D 0x00000040; + cpu->id_pfr0 =3D 0x00000030; + cpu->id_pfr1 =3D 0x00000210; + cpu->id_dfr0 =3D 0x00200000; + cpu->id_afr0 =3D 0x00000000; + cpu->id_mmfr0 =3D 0x00101F40; + cpu->id_mmfr1 =3D 0x00000000; + cpu->id_mmfr2 =3D 0x01000000; + cpu->id_mmfr3 =3D 0x00000000; + cpu->isar.id_isar0 =3D 0x01101110; + cpu->isar.id_isar1 =3D 0x02212000; + cpu->isar.id_isar2 =3D 0x20232232; + cpu->isar.id_isar3 =3D 0x01111131; + cpu->isar.id_isar4 =3D 0x01310132; + cpu->isar.id_isar5 =3D 0x00000000; + cpu->isar.id_isar6 =3D 0x00000000; + cpu->clidr =3D 0x00000000; + cpu->ctr =3D 0x8000c000; +} + +static void arm_v7m_class_init(ObjectClass *oc, void *data) +{ + ARMCPUClass *acc =3D ARM_CPU_CLASS(oc); + CPUClass *cc =3D CPU_CLASS(oc); + + acc->info =3D data; +#ifndef CONFIG_USER_ONLY + cc->do_interrupt =3D arm_v7m_cpu_do_interrupt; +#endif + + cc->cpu_exec_interrupt =3D arm_v7m_cpu_exec_interrupt; +} + +static const ARMCPUInfo arm_v7m_cpus[] =3D { + { .name =3D "cortex-m0", .initfn =3D cortex_m0_initfn, + .class_init =3D arm_v7m_class_init }, + { .name =3D "cortex-m3", .initfn =3D cortex_m3_initfn, + .class_init =3D arm_v7m_class_init }, + { .name =3D "cortex-m4", .initfn =3D cortex_m4_initfn, + .class_init =3D arm_v7m_class_init }, + { .name =3D "cortex-m33", .initfn =3D cortex_m33_initfn, + .class_init =3D arm_v7m_class_init }, + { .name =3D NULL } +}; + +static void arm_v7m_cpu_register_types(void) +{ + const ARMCPUInfo *info =3D arm_v7m_cpus; + + while (info->name) { + arm_cpu_register(info); + info++; + } +} + +type_init(arm_v7m_cpu_register_types) + +#endif --=20 2.18.1