From patchwork Sun Sep 2 21:56:04 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yinghai Lu X-Patchwork-Id: 1397711 X-Patchwork-Delegate: bhelgaas@google.com Return-Path: X-Original-To: patchwork-linux-pci@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork1.kernel.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by patchwork1.kernel.org (Postfix) with ESMTP id DF45B3FC71 for ; Sun, 2 Sep 2012 21:57:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932083Ab2IBV5L (ORCPT ); Sun, 2 Sep 2012 17:57:11 -0400 Received: from acsinet15.oracle.com ([141.146.126.227]:23297 "EHLO acsinet15.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756123Ab2IBV41 (ORCPT ); Sun, 2 Sep 2012 17:56:27 -0400 Received: from ucsinet22.oracle.com (ucsinet22.oracle.com [156.151.31.94]) by acsinet15.oracle.com (Sentrion-MTA-4.2.2/Sentrion-MTA-4.2.2) with ESMTP id q82LuHuC006493 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Sun, 2 Sep 2012 21:56:18 GMT Received: from acsmt356.oracle.com (acsmt356.oracle.com [141.146.40.156]) by ucsinet22.oracle.com (8.14.4+Sun/8.14.4) with ESMTP id q82LuGMc000500 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Sun, 2 Sep 2012 21:56:17 GMT Received: from abhmt107.oracle.com (abhmt107.oracle.com [141.146.116.59]) by acsmt356.oracle.com (8.12.11.20060308/8.12.11) with ESMTP id q82LuGCr001618; Sun, 2 Sep 2012 16:56:16 -0500 Received: from linux-siqj.site (/75.55.221.75) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Sun, 02 Sep 2012 14:56:16 -0700 From: Yinghai Lu To: Bjorn Helgaas , Taku Izumi , Jiang Liu , x86 Cc: Andrew Morton , Linus Torvalds , Greg Kroah-Hartman , linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org, Yinghai Lu Subject: [PATCH part5 6/7] PCI, x86: Move pci_enable_bridges() down Date: Sun, 2 Sep 2012 14:56:04 -0700 Message-Id: <1346622965-30937-7-git-send-email-yinghai@kernel.org> X-Mailer: git-send-email 1.7.7 In-Reply-To: <1346622965-30937-1-git-send-email-yinghai@kernel.org> References: <1346622965-30937-1-git-send-email-yinghai@kernel.org> X-Source-IP: ucsinet22.oracle.com [156.151.31.94] Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org After we get hot-added ioapic registered. pci_enable_bridges will try to enable ioapic irq for pci bridge. So need to move it down. Or We can move out pcibios_enable_irq() out of pci_enable_device() and call pcibios_enable_irq in pci_bus_add_devices ? also will need to move ... pcibios_resource_survey_bus(root->bus); pci_assign_unassigned_bus_resources(root->bus); to the start add .... Signed-off-by: Yinghai Lu --- drivers/acpi/pci_root.c | 3 +++ drivers/pci/probe.c | 1 + drivers/pci/setup-bus.c | 2 -- 3 files changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c index 59aa947..80adbbb 100644 --- a/drivers/acpi/pci_root.c +++ b/drivers/acpi/pci_root.c @@ -646,6 +646,9 @@ static int acpi_pci_root_start(struct acpi_device *device) if (driver->add) driver->add(device->handle); + /* need to after hot-added ioapic is registered */ + pci_enable_bridges(root->bus); + pci_bus_add_devices(root->bus); mutex_unlock(&acpi_pci_root_lock); diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index dd84224..b18f429 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -1909,6 +1909,7 @@ unsigned int __ref pci_rescan_bus(struct pci_bus *bus) max = pci_scan_child_bus(bus); pci_assign_unassigned_bus_resources(bus); + pci_enable_bridges(bus); pci_bus_add_devices(bus); return max; diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c index 054d54b..ec10d51 100644 --- a/drivers/pci/setup-bus.c +++ b/drivers/pci/setup-bus.c @@ -1527,6 +1527,4 @@ void pci_assign_unassigned_bus_resources(struct pci_bus *bus) up_read(&pci_bus_sem); __pci_bus_assign_resources(bus, &add_list, NULL); BUG_ON(!list_empty(&add_list)); - - pci_enable_bridges(bus); }