From nobody Fri Dec 27 07:01:39 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 Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1732759903981972.7464427582195; Wed, 27 Nov 2024 18:11:43 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1tGTzI-0005jv-2X; Wed, 27 Nov 2024 21:10:36 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1tGTzE-0005iw-V4 for qemu-devel@nongnu.org; Wed, 27 Nov 2024 21:10:32 -0500 Received: from mail.loongson.cn ([114.242.206.163]) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1tGTzC-0006v7-0b for qemu-devel@nongnu.org; Wed, 27 Nov 2024 21:10:32 -0500 Received: from loongson.cn (unknown [10.2.5.213]) by gateway (Coremail) with SMTP id _____8BxPOIR0UdnGFRKAA--.13898S3; Thu, 28 Nov 2024 10:10:25 +0800 (CST) Received: from localhost.localdomain (unknown [10.2.5.213]) by front1 (Coremail) with SMTP id qMiowMCxNMAQ0UdnfNJqAA--.46399S4; Thu, 28 Nov 2024 10:10:25 +0800 (CST) From: Bibo Mao To: Song Gao , Huacai Chen Cc: Jiaxun Yang , Igor Mammedov , qemu-devel@nongnu.org Subject: [PATCH 2/5] hw/intc/loongarch_ipi: Add basic hotplug framework Date: Thu, 28 Nov 2024 10:10:21 +0800 Message-Id: <20241128021024.662057-3-maobibo@loongson.cn> X-Mailer: git-send-email 2.39.3 In-Reply-To: <20241128021024.662057-1-maobibo@loongson.cn> References: <20241128021024.662057-1-maobibo@loongson.cn> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-CM-TRANSID: qMiowMCxNMAQ0UdnfNJqAA--.46399S4 X-CM-SenderInfo: xpdruxter6z05rqj20fqof0/ X-Coremail-Antispam: 1Uk129KBjDUn29KB7ZKAUJUUUUU529EdanIXcx71UUUUU7KY7 ZEXasCq-sGcSsGvfJ3UbIjqfuFe4nvWSU5nxnvy29KBjDU0xBIdaVrnUUvcSsGvfC2Kfnx nUUI43ZEXa7xR_UUUUUUUUU== 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=114.242.206.163; envelope-from=maobibo@loongson.cn; helo=mail.loongson.cn X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=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: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZM-MESSAGEID: 1732759904790019100 Content-Type: text/plain; charset="utf-8" LoongArch ipi can send interrupt to multiple CPUs, interrupt routing to CPU comes from destination physical cpu id. Here hotplug interface is added for IPI object, sot that logic cpu mapping from physical cpu id can be setup. Here only basic hotplug framework is added, it is stub function. Signed-off-by: Bibo Mao --- hw/intc/loongarch_ipi.c | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) diff --git a/hw/intc/loongarch_ipi.c b/hw/intc/loongarch_ipi.c index c5ecd68952..7ea65bcef3 100644 --- a/hw/intc/loongarch_ipi.c +++ b/hw/intc/loongarch_ipi.c @@ -7,6 +7,7 @@ =20 #include "qemu/osdep.h" #include "hw/boards.h" +#include "qemu/error-report.h" #include "hw/intc/loongarch_ipi.h" #include "target/loongarch/cpu.h" =20 @@ -60,12 +61,39 @@ static int loongarch_cpu_by_arch_id(LoongsonIPICommonSt= ate *lics, return MEMTX_ERROR; } =20 +static void loongarch_cpu_plug(HotplugHandler *hotplug_dev, + DeviceState *dev, Error **errp) +{ + Object *obj =3D OBJECT(dev); + + if (!object_dynamic_cast(obj, TYPE_LOONGARCH_CPU)) { + warn_report("LoongArch IPI: Invalid %s device type", + object_get_typename(obj)); + return; + } +} + +static void loongarch_cpu_unplug(HotplugHandler *hotplug_dev, + DeviceState *dev, Error **errp) +{ + Object *obj =3D OBJECT(dev); + + if (!object_dynamic_cast(obj, TYPE_LOONGARCH_CPU)) { + warn_report("LoongArch IPI: Invalid %s device type", + object_get_typename(obj)); + return; + } +} + static void loongarch_ipi_class_init(ObjectClass *klass, void *data) { LoongsonIPICommonClass *licc =3D LOONGSON_IPI_COMMON_CLASS(klass); + HotplugHandlerClass *hc =3D HOTPLUG_HANDLER_CLASS(klass); =20 licc->get_iocsr_as =3D get_iocsr_as; licc->cpu_by_arch_id =3D loongarch_cpu_by_arch_id; + hc->plug =3D loongarch_cpu_plug; + hc->unplug =3D loongarch_cpu_unplug; } =20 static const TypeInfo loongarch_ipi_types[] =3D { @@ -73,6 +101,10 @@ static const TypeInfo loongarch_ipi_types[] =3D { .name =3D TYPE_LOONGARCH_IPI, .parent =3D TYPE_LOONGSON_IPI_COMMON, .class_init =3D loongarch_ipi_class_init, + .interfaces =3D (InterfaceInfo[]) { + { TYPE_HOTPLUG_HANDLER }, + { } + } } }; =20 --=20 2.39.3