From nobody Tue Oct 28 01:48:52 2025 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) client-ip=208.118.235.17; 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 208.118.235.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) by mx.zohomail.com with SMTPS id 1516211699485106.84388766286429; Wed, 17 Jan 2018 09:54:59 -0800 (PST) Received: from localhost ([::1]:51296 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ebrvO-0003kO-FV for importer@patchew.org; Wed, 17 Jan 2018 12:54:58 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:47208) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ebrix-0000gY-I6 for qemu-devel@nongnu.org; Wed, 17 Jan 2018 12:42:10 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ebriw-00009F-BV for qemu-devel@nongnu.org; Wed, 17 Jan 2018 12:42:07 -0500 Received: from mx1.redhat.com ([209.132.183.28]:59448) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1ebriw-000081-2f; Wed, 17 Jan 2018 12:42:06 -0500 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 0208B82101; Wed, 17 Jan 2018 17:42:05 +0000 (UTC) Received: from t460s.redhat.com (ovpn-117-185.ams2.redhat.com [10.36.117.185]) by smtp.corp.redhat.com (Postfix) with ESMTP id 650B35D756; Wed, 17 Jan 2018 17:42:02 +0000 (UTC) From: David Hildenbrand To: qemu-s390x@nongnu.org, qemu-devel@nongnu.org Date: Wed, 17 Jan 2018 18:40:45 +0100 Message-Id: <20180117174047.6382-17-david@redhat.com> In-Reply-To: <20180117174047.6382-1-david@redhat.com> References: <20180117174047.6382-1-david@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.26]); Wed, 17 Jan 2018 17:42:05 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PATCH v2 16/18] s390x/tcg: cache the qemu flic in a central function X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Thomas Huth , David Hildenbrand , Cornelia Huck , Alexander Graf , Christian Borntraeger , Richard Henderson Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" This avoids tons of conversions when handling interrupts. Signed-off-by: David Hildenbrand --- hw/intc/s390_flic.c | 23 +++++++++++++++++------ include/hw/s390x/s390_flic.h | 1 + target/s390x/interrupt.c | 6 +++--- target/s390x/misc_helper.c | 2 +- 4 files changed, 22 insertions(+), 10 deletions(-) diff --git a/hw/intc/s390_flic.c b/hw/intc/s390_flic.c index 5febde2d65..b46c0f1bb4 100644 --- a/hw/intc/s390_flic.c +++ b/hw/intc/s390_flic.c @@ -22,6 +22,17 @@ #include "qapi/error.h" #include "hw/s390x/s390-virtio-ccw.h" =20 +QEMUS390FLICState *s390_get_qemu_flic(S390FLICState *fs) +{ + static QEMUS390FLICState *flic; + + if (!flic) { + /* we only have one flic device, so this is fine to cache */ + flic =3D QEMU_S390_FLIC(fs); + } + return flic; +} + S390FLICState *s390_get_flic(void) { static S390FLICState *fs; @@ -79,7 +90,7 @@ static void qemu_s390_release_adapter_routes(S390FLICStat= e *fs, static int qemu_s390_clear_io_flic(S390FLICState *fs, uint16_t subchannel_= id, uint16_t subchannel_nr) { - QEMUS390FLICState *flic =3D QEMU_S390_FLIC(fs); + QEMUS390FLICState *flic =3D s390_get_qemu_flic(fs); QEMUS390FlicIO *cur, *next; uint8_t isc; =20 @@ -113,7 +124,7 @@ static int qemu_s390_clear_io_flic(S390FLICState *fs, u= int16_t subchannel_id, static int qemu_s390_modify_ais_mode(S390FLICState *fs, uint8_t isc, uint16_t mode) { - QEMUS390FLICState *flic =3D QEMU_S390_FLIC(fs); + QEMUS390FLICState *flic =3D s390_get_qemu_flic(fs); =20 switch (mode) { case SIC_IRQ_MODE_ALL: @@ -134,7 +145,7 @@ static int qemu_s390_modify_ais_mode(S390FLICState *fs,= uint8_t isc, static int qemu_s390_inject_airq(S390FLICState *fs, uint8_t type, uint8_t isc, uint8_t flags) { - QEMUS390FLICState *flic =3D QEMU_S390_FLIC(fs); + QEMUS390FLICState *flic =3D s390_get_qemu_flic(fs); S390FLICStateClass *fsc =3D S390_FLIC_COMMON_GET_CLASS(fs); bool flag =3D flags & S390_ADAPTER_SUPPRESSIBLE; uint32_t io_int_word =3D (isc << 27) | IO_INT_WORD_AI; @@ -246,7 +257,7 @@ void qemu_s390_flic_dequeue_crw_mchk(QEMUS390FLICState = *flic) =20 static void qemu_s390_inject_service(S390FLICState *fs, uint32_t parm) { - QEMUS390FLICState *flic =3D QEMU_S390_FLIC(fs); + QEMUS390FLICState *flic =3D s390_get_qemu_flic(fs); =20 g_assert(qemu_mutex_iothread_locked()); /* multiplexing is good enough for sclp - kvm does it internally as we= ll */ @@ -261,7 +272,7 @@ static void qemu_s390_inject_io(S390FLICState *fs, uint= 16_t subchannel_id, uint32_t io_int_word) { const uint8_t isc =3D IO_INT_WORD_ISC(io_int_word); - QEMUS390FLICState *flic =3D QEMU_S390_FLIC(fs); + QEMUS390FLICState *flic =3D s390_get_qemu_flic(fs); QEMUS390FlicIO *io; =20 g_assert(qemu_mutex_iothread_locked()); @@ -279,7 +290,7 @@ static void qemu_s390_inject_io(S390FLICState *fs, uint= 16_t subchannel_id, =20 static void qemu_s390_inject_crw_mchk(S390FLICState *fs) { - QEMUS390FLICState *flic =3D QEMU_S390_FLIC(fs); + QEMUS390FLICState *flic =3D s390_get_qemu_flic(fs); =20 g_assert(qemu_mutex_iothread_locked()); flic->pending |=3D FLIC_PENDING_MCHK_CR; diff --git a/include/hw/s390x/s390_flic.h b/include/hw/s390x/s390_flic.h index 566d153371..a636afce42 100644 --- a/include/hw/s390x/s390_flic.h +++ b/include/hw/s390x/s390_flic.h @@ -135,6 +135,7 @@ bool qemu_s390_flic_has_any(QEMUS390FLICState *flic); void s390_flic_init(void); =20 S390FLICState *s390_get_flic(void); +QEMUS390FLICState *s390_get_qemu_flic(S390FLICState *fs); bool ais_needed(void *opaque); =20 #endif /* HW_S390_FLIC_H */ diff --git a/target/s390x/interrupt.c b/target/s390x/interrupt.c index 61691aa3a4..1947012b25 100644 --- a/target/s390x/interrupt.c +++ b/target/s390x/interrupt.c @@ -158,7 +158,7 @@ void s390_crw_mchk(void) =20 bool s390_cpu_has_mcck_int(S390CPU *cpu) { - QEMUS390FLICState *flic =3D QEMU_S390_FLIC(s390_get_flic()); + QEMUS390FLICState *flic =3D s390_get_qemu_flic(s390_get_flic()); CPUS390XState *env =3D &cpu->env; =20 if (!(env->psw.mask & PSW_MASK_MCHECK)) { @@ -176,7 +176,7 @@ bool s390_cpu_has_mcck_int(S390CPU *cpu) =20 bool s390_cpu_has_ext_int(S390CPU *cpu) { - QEMUS390FLICState *flic =3D QEMU_S390_FLIC(s390_get_flic()); + QEMUS390FLICState *flic =3D s390_get_qemu_flic(s390_get_flic()); CPUS390XState *env =3D &cpu->env; =20 if (!(env->psw.mask & PSW_MASK_EXT)) { @@ -218,7 +218,7 @@ bool s390_cpu_has_ext_int(S390CPU *cpu) =20 bool s390_cpu_has_io_int(S390CPU *cpu) { - QEMUS390FLICState *flic =3D QEMU_S390_FLIC(s390_get_flic()); + QEMUS390FLICState *flic =3D s390_get_qemu_flic(s390_get_flic()); CPUS390XState *env =3D &cpu->env; =20 if (!(env->psw.mask & PSW_MASK_IO)) { diff --git a/target/s390x/misc_helper.c b/target/s390x/misc_helper.c index 083eb2d91b..a6a7dac623 100644 --- a/target/s390x/misc_helper.c +++ b/target/s390x/misc_helper.c @@ -452,7 +452,7 @@ uint32_t HELPER(tpi)(CPUS390XState *env, uint64_t addr) { const uintptr_t ra =3D GETPC(); S390CPU *cpu =3D s390_env_get_cpu(env); - QEMUS390FLICState *flic =3D QEMU_S390_FLIC(s390_get_flic()); + QEMUS390FLICState *flic =3D s390_get_qemu_flic(s390_get_flic()); QEMUS390FlicIO *io =3D NULL; LowCore *lowcore; =20 --=20 2.14.3