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c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1751018329; 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=AEEVFuVgXtEs9AMII08Ryp9030CsoWN7Q0v/wpP3b3Rtx5vfrfkwmbVnBgpFKmc6uUuP2D MV2xO+4HiO/S/opf+YsFtC9iu+3FrXYzs1W1WEuSSmRNFHbeBXSZxE4cRzJ8Ac9GsnGUhh kkyj/cOLeSMvCNdamw6Su5VO+ymAW+A= X-MC-Unique: -U1Zb2YANHGPAtYiXBlMDw-1 X-Mimecast-MFC-AGG-ID: -U1Zb2YANHGPAtYiXBlMDw_1751018325 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, gustavo.romero@linaro.org, anisinha@redhat.com, mst@redhat.com, shannon.zhaosl@gmail.com Cc: pbonzini@redhat.com, Jonathan.Cameron@huawei.com, philmd@linaro.org, alex.bennee@linaro.org Subject: [PATCH v4 27/32] hw/core/sysbus: Introduce sysbus_mmio_map_name() helper Date: Fri, 27 Jun 2025 11:55:16 +0200 Message-ID: <20250627095620.3300028-28-eric.auger@redhat.com> In-Reply-To: <20250627095620.3300028-1-eric.auger@redhat.com> References: <20250627095620.3300028-1-eric.auger@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.0 on 10.30.177.12 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; 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charset="utf-8" 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_ir= q 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); =20 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); } =20 +int sysbus_mmio_map_name(SysBusDevice *dev, const char *name, hwaddr addr) +{ + for (int i =3D 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) { --=20 2.49.0