From patchwork Mon Sep 16 17:10:13 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jonathan Cameron X-Patchwork-Id: 13805687 Received: from frasgout.his.huawei.com (frasgout.his.huawei.com [185.176.79.56]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B865015CD60 for ; Mon, 16 Sep 2024 17:15:05 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.176.79.56 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1726506907; cv=none; b=EYpsMzD32qvEcYfNnmtzHNtEmhum9ad59DdgsBlSkSFm/pa/Cn20Wl70Cxu/QrLtScrNre9lbdvFx2xzCWvZZ1OEUZi4e9jz6dd6OYMFMwKt4eG8a34W8qysZOAYlxAolc5vKXtV12AO1hphJB/Hnl4wGc2vN9t7ryJ4+WbokKk= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1726506907; c=relaxed/simple; bh=/D3epognXrF7xKcl8a/DY0JU1LV/qHy629Ep94660Eg=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=f7fTDWaaYd6O/uPMLEJGc7OgZlTonaOlZvv1Er79RU7ooaSY9lrnEImqjW0OMug5rJ5Uux5eQ7iO4qyLD465ZyKie8qrwmnGIpNq6XchPM4xFsuEGH8wCSktTaivbwq2TaP9O0FgwNq7w3eMskPkHe9YjG9iUban8YkoKmk2rbY= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com; spf=pass smtp.mailfrom=huawei.com; arc=none smtp.client-ip=185.176.79.56 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=huawei.com Received: from mail.maildlp.com (unknown [172.18.186.231]) by frasgout.his.huawei.com (SkyGuard) with ESMTP id 4X6s3l0ZgTz67lLG; Tue, 17 Sep 2024 01:14:59 +0800 (CST) Received: from frapeml500008.china.huawei.com (unknown [7.182.85.71]) by mail.maildlp.com (Postfix) with ESMTPS id B7F19140AB8; Tue, 17 Sep 2024 01:15:03 +0800 (CST) Received: from SecurePC-101-06.china.huawei.com (10.122.19.247) by frapeml500008.china.huawei.com (7.182.85.71) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2507.39; Mon, 16 Sep 2024 19:15:00 +0200 From: Jonathan Cameron To: , , Markus Armbruster , , CC: , , , , Richard Henderson , Dave Jiang , Huang Ying , Paolo Bonzini , , Michael Roth , Ani Sinha Subject: [PATCH v6 08/15] hw/i386/acpi: Use TYPE_PXB_BUS property acpi_uid for DSDT Date: Mon, 16 Sep 2024 18:10:13 +0100 Message-ID: <20240916171017.1841767-9-Jonathan.Cameron@huawei.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240916171017.1841767-1-Jonathan.Cameron@huawei.com> References: <20240916171017.1841767-1-Jonathan.Cameron@huawei.com> Precedence: bulk X-Mailing-List: linux-cxl@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: lhrpeml100003.china.huawei.com (7.191.160.210) To frapeml500008.china.huawei.com (7.182.85.71) Rather than relying on PCI internals, use the new acpi_property to obtain the ACPI _UID values. These are still the same as the PCI Bus numbers so no functional change. Suggested-by: Igor Mammedov Tested-by: "Huang, Ying" Reviewed-by: Igor Mammedov Signed-off-by: Jonathan Cameron --- hw/i386/acpi-build.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c index afb2fa2edc..88227e343e 100644 --- a/hw/i386/acpi-build.c +++ b/hw/i386/acpi-build.c @@ -1475,6 +1475,7 @@ build_dsdt(GArray *table_data, BIOSLinker *linker, QLIST_FOREACH(bus, &bus->child, sibling) { uint8_t bus_num = pci_bus_num(bus); uint8_t numa_node = pci_bus_numa_node(bus); + uint32_t uid; /* look only for expander root buses */ if (!pci_bus_is_root(bus)) { @@ -1485,6 +1486,8 @@ build_dsdt(GArray *table_data, BIOSLinker *linker, root_bus_limit = bus_num - 1; } + uid = object_property_get_uint(OBJECT(bus), "acpi_uid", + &error_fatal); scope = aml_scope("\\_SB"); if (pci_bus_is_cxl(bus)) { @@ -1492,7 +1495,7 @@ build_dsdt(GArray *table_data, BIOSLinker *linker, } else { dev = aml_device("PC%.02X", bus_num); } - aml_append(dev, aml_name_decl("_UID", aml_int(bus_num))); + aml_append(dev, aml_name_decl("_UID", aml_int(uid))); aml_append(dev, aml_name_decl("_BBN", aml_int(bus_num))); if (pci_bus_is_cxl(bus)) { struct Aml *aml_pkg = aml_package(2);