From patchwork Tue May 19 14:55:38 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Markus Armbruster X-Patchwork-Id: 282362 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=-6.9 required=3.0 tests=DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS 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 A9B3DC433E0 for ; Tue, 19 May 2020 15:21:29 +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 740232075F for ; Tue, 19 May 2020 15:21:29 +0000 (UTC) Authentication-Results: mail.kernel.org; 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Tue, 19 May 2020 14:55:59 +0000 (UTC) Received: from blackfin.pond.sub.org (ovpn-112-32.ams2.redhat.com [10.36.112.32]) by smtp.corp.redhat.com (Postfix) with ESMTPS id A58DF60C84; Tue, 19 May 2020 14:55:59 +0000 (UTC) Received: by blackfin.pond.sub.org (Postfix, from userid 1000) id 4D62C1135227; Tue, 19 May 2020 16:55:52 +0200 (CEST) From: Markus Armbruster To: qemu-devel@nongnu.org Subject: [PATCH 42/55] sysbus: New sysbus_realize(), sysbus_realize_and_unref() Date: Tue, 19 May 2020 16:55:38 +0200 Message-Id: <20200519145551.22836-43-armbru@redhat.com> In-Reply-To: <20200519145551.22836-1-armbru@redhat.com> References: <20200519145551.22836-1-armbru@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=205.139.110.120; envelope-from=armbru@redhat.com; helo=us-smtp-1.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/05/18 23:56:10 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] 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, DKIMWL_WL_HIGH=0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_PASS=-0.001 autolearn=_AUTOLEARN 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: pbonzini@redhat.com, berrange@redhat.com, ehabkost@redhat.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Sysbus devices almost always plug into the main system bus. qdev_create() even has a convenience feature to make that easy: a null bus argument gets replaced by the main system bus. qdev_realize() and qdev_realize_and_unref() do the same. We can do better. Provide convenience wrappers around qdev_realize() and qdev_realize_and_unref() that don't take a @bus argument. They always pass the main system bus. Signed-off-by: Markus Armbruster --- include/hw/sysbus.h | 4 +++- hw/core/sysbus.c | 14 ++++++++++++-- 2 files changed, 15 insertions(+), 3 deletions(-) diff --git a/include/hw/sysbus.h b/include/hw/sysbus.h index c4a1c0adfa..606095ba35 100644 --- a/include/hw/sysbus.h +++ b/include/hw/sysbus.h @@ -90,6 +90,9 @@ void sysbus_add_io(SysBusDevice *dev, hwaddr addr, MemoryRegion *mem); MemoryRegion *sysbus_address_space(SysBusDevice *dev); +bool sysbus_realize(SysBusDevice *dev, Error **errp); +bool sysbus_realize_and_unref(SysBusDevice *dev, Error **errp); + /** * sysbus_init_child_obj: * @parent: The parent object @@ -121,5 +124,4 @@ static inline DeviceState *sysbus_create_simple(const char *name, return sysbus_create_varargs(name, addr, irq, NULL); } - #endif /* HW_SYSBUS_H */ diff --git a/hw/core/sysbus.c b/hw/core/sysbus.c index e8d08d349b..68b837ac85 100644 --- a/hw/core/sysbus.c +++ b/hw/core/sysbus.c @@ -217,7 +217,7 @@ void sysbus_init_ioports(SysBusDevice *dev, uint32_t ioport, uint32_t size) * from being set to NULL to break the normal init/realize * of some devices. */ -static void sysbus_realize(DeviceState *dev, Error **errp) +static void sysbus_device_realize(DeviceState *dev, Error **errp) { } @@ -250,6 +250,16 @@ DeviceState *sysbus_create_varargs(const char *name, return dev; } +bool sysbus_realize(SysBusDevice *dev, Error **errp) +{ + return qdev_realize(DEVICE(dev), sysbus_get_default(), errp); +} + +bool sysbus_realize_and_unref(SysBusDevice *dev, Error **errp) +{ + return qdev_realize_and_unref(DEVICE(dev), sysbus_get_default(), errp); +} + static void sysbus_dev_print(Monitor *mon, DeviceState *dev, int indent) { SysBusDevice *s = SYS_BUS_DEVICE(dev); @@ -301,7 +311,7 @@ MemoryRegion *sysbus_address_space(SysBusDevice *dev) static void sysbus_device_class_init(ObjectClass *klass, void *data) { DeviceClass *k = DEVICE_CLASS(klass); - k->realize = sysbus_realize; + k->realize = sysbus_device_realize; k->bus_type = TYPE_SYSTEM_BUS; /* * device_add plugs devices into a suitable bus. For "real" buses,