From patchwork Fri Jan 16 01:44:12 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yijing Wang X-Patchwork-Id: 5644931 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 351789F444 for ; Fri, 16 Jan 2015 03:52:01 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 5E829201C0 for ; Fri, 16 Jan 2015 03:52:00 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 893C520172 for ; Fri, 16 Jan 2015 03:51:59 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1YBxuR-0004do-JU; Fri, 16 Jan 2015 03:49:19 +0000 Received: from szxga01-in.huawei.com ([119.145.14.64]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1YBxuM-0004SK-WD for linux-arm-kernel@lists.infradead.org; Fri, 16 Jan 2015 03:49:16 +0000 Received: from 172.24.2.119 (EHLO szxeml407-hub.china.huawei.com) ([172.24.2.119]) by szxrg01-dlp.huawei.com (MOS 4.3.7-GA FastPath queued) with ESMTP id CHY77861; Fri, 16 Jan 2015 11:47:19 +0800 (CST) Received: from localhost.localdomain (10.175.100.166) by szxeml407-hub.china.huawei.com (10.82.67.94) with Microsoft SMTP Server id 14.3.158.1; Fri, 16 Jan 2015 11:47:11 +0800 From: Yijing Wang To: Bjorn Helgaas Subject: [PATCH 14/28] PCI/IA64: Refine pci_acpi_scan_root() with generic pci_host_bridge Date: Fri, 16 Jan 2015 09:44:12 +0800 Message-ID: <1421372666-12288-15-git-send-email-wangyijing@huawei.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1421372666-12288-1-git-send-email-wangyijing@huawei.com> References: <1421372666-12288-1-git-send-email-wangyijing@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.175.100.166] X-CFilter-Loop: Reflected X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20150115_194915_601749_0480336E X-CRM114-Status: GOOD ( 11.57 ) X-Spam-Score: -0.7 (/) Cc: Liviu Dudau , Tony Luck , Russell King , Arnd Bergmann , Marc Zyngier , linux-pci@vger.kernel.org, x86@kernel.org, linux-kernel@vger.kernel.org, "David S. Miller" , linux-m68k@lists.linux-m68k.org, Geert Uytterhoeven , Yijing Wang , linux-alpha@vger.kernel.org, Yijing Wang , linux-ia64@vger.kernel.org, Thomas Gleixner , Guan Xuetao , Yinghai Lu , Jiang Liu , linux-arm-kernel@lists.infradead.org X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Yijing Wang Signed-off-by: Yijing Wang --- arch/ia64/pci/pci.c | 34 ++++++++++++++++++---------------- 1 files changed, 18 insertions(+), 16 deletions(-) diff --git a/arch/ia64/pci/pci.c b/arch/ia64/pci/pci.c index e457015..7736c02 100644 --- a/arch/ia64/pci/pci.c +++ b/arch/ia64/pci/pci.c @@ -420,6 +420,18 @@ probe_pci_root_info(struct pci_root_info *info, struct acpi_device *device, return 0; } +static int pci_host_bridge_prepare(struct pci_host_bridge *bridge) +{ + struct pci_sysdata *sd = dev_get_drvdata(&bridge->dev); + + ACPI_COMPANION_SET(&bridge->dev, sd->companion); + return 0; +} + +static struct pci_host_bridge_ops phb_ops = { + .phb_prepare = pci_host_bridge_prepare, +}; + struct pci_bus *pci_acpi_scan_root(struct acpi_pci_root *root) { struct acpi_device *device = root->device; @@ -428,7 +440,7 @@ struct pci_bus *pci_acpi_scan_root(struct acpi_pci_root *root) struct pci_controller *controller; struct pci_root_info *info = NULL; int busnum = root->secondary.start; - struct pci_bus *pbus; + struct pci_host_bridge *host; int ret; controller = alloc_pci_controller(domain); @@ -465,26 +477,16 @@ struct pci_bus *pci_acpi_scan_root(struct acpi_pci_root *root) * should handle the case here, but it appears that IA64 hasn't * such quirk. So we just ignore the case now. */ - pbus = pci_create_root_bus(NULL, PCI_DOMBUS(domain, bus), - &pci_root_ops, controller, &info->resources); - if (!pbus) { + host = pci_scan_root_bridge(NULL, PCI_DOMBUS(domain, bus), + &pci_root_ops, controller, &info->resources, &phb_ops); + if (!host) { pci_free_resource_list(&info->resources); __release_pci_root_info(info); return NULL; } - pci_set_host_bridge_release(to_pci_host_bridge(pbus->bridge), - release_pci_root_info, info); - pci_scan_child_bus(pbus); - return pbus; -} - -int pcibios_root_bridge_prepare(struct pci_host_bridge *bridge) -{ - struct pci_controller *controller = bridge->bus->sysdata; - - ACPI_COMPANION_SET(&bridge->dev, controller->companion); - return 0; + pci_set_host_bridge_release(host, release_pci_root_info, info); + return host->bus; } static int is_valid_resource(struct pci_dev *dev, int idx)