From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 27171C83F0F for ; Tue, 8 Jul 2025 20:59:12 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1uZFJz-0001tV-IZ; Tue, 08 Jul 2025 16:53:47 -0400 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 1uZEE6-0006iD-TL for qemu-devel@nongnu.org; Tue, 08 Jul 2025 15:43:39 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1uZEE5-0006VR-Ep for qemu-devel@nongnu.org; Tue, 08 Jul 2025 15:43:38 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1752003816; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=Pzj2MFtdQnbxUAQCssC7SV9aCXwj2DU+ao42ErCzUmI=; b=SynFMNBwvdMiKi4ZBPknDu21OUS8FrVSL8RNPcJnWAII2EQWeZbptuoJTKNIrhRsw51Hfy zm2Ql0bgGN8XdEIcKZjU6c0uwq6DrLlfY6wsAPeAjgOiIlNZ/6t8KDDDjyKmA4IIfnGtZw EaGgNepnTi+7Yw6PHURl1ALb/ILKrYc= Received: from mx-prod-mc-03.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-628-Ucux99K3P3-DSFMaqb0iEA-1; Tue, 08 Jul 2025 10:28:03 -0400 X-MC-Unique: Ucux99K3P3-DSFMaqb0iEA-1 X-Mimecast-MFC-AGG-ID: Ucux99K3P3-DSFMaqb0iEA_1751984881 Received: from mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.4]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-03.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 6AF6E18DA5CE; Tue, 8 Jul 2025 14:28:01 +0000 (UTC) Received: from laptop.redhat.com (unknown [10.44.32.187]) by mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 7D5A230001B1; Tue, 8 Jul 2025 14:27:55 +0000 (UTC) From: Eric Auger To: eric.auger.pro@gmail.com, eric.auger@redhat.com, qemu-devel@nongnu.org, qemu-arm@nongnu.org, peter.maydell@linaro.org, imammedo@redhat.com, Jonathan.Cameron@huawei.com, gustavo.romero@linaro.org, anisinha@redhat.com, mst@redhat.com, shannon.zhaosl@gmail.com Cc: pbonzini@redhat.com, philmd@linaro.org, alex.bennee@linaro.org Subject: [PATCH v6 30/36] hw/core/sysbus: Introduce sysbus_mmio_map_name() helper Date: Tue, 8 Jul 2025 16:23:12 +0200 Message-ID: <20250708142437.1344644-31-eric.auger@redhat.com> In-Reply-To: <20250708142437.1344644-1-eric.auger@redhat.com> References: <20250708142437.1344644-1-eric.auger@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.4 Received-SPF: pass client-ip=170.10.133.124; envelope-from=eric.auger@redhat.com; helo=us-smtp-delivery-124.mimecast.com 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_H5=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable 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+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Some sysbus devices have conditional mmio regions. This happens for instance with the hw/acpi/ged device. In that case it becomes difficult to predict which index a specific MMIO region corresponds to when one needs to mmio map the region. Introduce a new helper that takes the name of the region instead of its index. If the region is not found this returns -1. Otherwise it maps the corresponding index and returns this latter. Signed-off-by: Eric Auger Reviewed-by: Jonathan Cameron --- include/hw/sysbus.h | 1 + hw/core/sysbus.c | 11 +++++++++++ 2 files changed, 12 insertions(+) diff --git a/include/hw/sysbus.h b/include/hw/sysbus.h index 7dc88aaa27..18fde8a7b4 100644 --- a/include/hw/sysbus.h +++ b/include/hw/sysbus.h @@ -82,6 +82,7 @@ void sysbus_connect_irq(SysBusDevice *dev, int n, qemu_irq irq); bool sysbus_is_irq_connected(SysBusDevice *dev, int n); qemu_irq sysbus_get_connected_irq(SysBusDevice *dev, int n); void sysbus_mmio_map(SysBusDevice *dev, int n, hwaddr addr); +int sysbus_mmio_map_name(SysBusDevice *dev, const char*name, hwaddr addr); void sysbus_mmio_map_overlap(SysBusDevice *dev, int n, hwaddr addr, int priority); diff --git a/hw/core/sysbus.c b/hw/core/sysbus.c index e71367adfb..ec69e877a2 100644 --- a/hw/core/sysbus.c +++ b/hw/core/sysbus.c @@ -151,6 +151,17 @@ void sysbus_mmio_map(SysBusDevice *dev, int n, hwaddr addr) sysbus_mmio_map_common(dev, n, addr, false, 0); } +int sysbus_mmio_map_name(SysBusDevice *dev, const char *name, hwaddr addr) +{ + for (int i = 0; i < dev->num_mmio; i++) { + if (!strcmp(dev->mmio[i].memory->name, name)) { + sysbus_mmio_map(dev, i, addr); + return i; + } + } + return -1; +} + void sysbus_mmio_map_overlap(SysBusDevice *dev, int n, hwaddr addr, int priority) { -- 2.49.0