From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bjorn Helgaas Subject: [RFC PATCH v1 08/18] ia64/PCI: SN: convert to pci_scan_root_bus() for correct root bus resources Date: Mon, 30 Jan 2012 09:57:50 -0700 Message-ID: <20120130165750.3231.60283.stgit@bhelgaas.mtv.corp.google.com> References: <20120130165430.3231.97740.stgit@bhelgaas.mtv.corp.google.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Return-path: Received: from mail-qy0-f202.google.com ([209.85.216.202]:48145 "EHLO mail-qy0-f202.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753155Ab2A3Q5v (ORCPT ); Mon, 30 Jan 2012 11:57:51 -0500 Received: by mail-qy0-f202.google.com with SMTP id d17so399024qcs.1 for ; Mon, 30 Jan 2012 08:57:50 -0800 (PST) In-Reply-To: <20120130165430.3231.97740.stgit@bhelgaas.mtv.corp.google.com> Sender: linux-arch-owner@vger.kernel.org List-ID: To: linux-pci@vger.kernel.org Cc: linux-arch@vger.kernel.org, Tony Luck , Jack Steiner Convert from pci_scan_bus() to pci_scan_root_bus(). Supply the root bus resources from bussoft. When we move the resource adjustment from pcibios_fixup_resources() to the PCI core, it will be important to have the root bus resources correct from the beginning. CC: Tony Luck CC: Jack Steiner --- arch/ia64/sn/kernel/io_init.c | 14 +++++++++----- 1 files changed, 9 insertions(+), 5 deletions(-) diff --git a/arch/ia64/sn/kernel/io_init.c b/arch/ia64/sn/kernel/io_init.c index 0a36f08..c99c2ca 100644 --- a/arch/ia64/sn/kernel/io_init.c +++ b/arch/ia64/sn/kernel/io_init.c @@ -297,7 +297,8 @@ sn_pci_controller_fixup(int segment, int busnum, struct pci_bus *bus) s64 status = 0; struct pci_controller *controller; struct pcibus_bussoft *prom_bussoft_ptr; - + LIST_HEAD(resources); + int i; status = sal_get_pcibus_info((u64) segment, (u64) busnum, (u64) ia64_tpa(&prom_bussoft_ptr)); @@ -315,7 +316,13 @@ sn_pci_controller_fixup(int segment, int busnum, struct pci_bus *bus) */ controller->platform_data = prom_bussoft_ptr; - bus = pci_scan_bus(busnum, &pci_root_ops, controller); + sn_legacy_pci_window_fixup(controller, + prom_bussoft_ptr->bs_legacy_io, + prom_bussoft_ptr->bs_legacy_mem); + for (i = 0; i < controller->windows; i++) + pci_add_resource(&resources, &controller->window[i].resource); + bus = pci_scan_root_bus(NULL, busnum, &pci_root_ops, controller, + &resources); if (bus == NULL) goto error_return; /* error, or bus already scanned */ @@ -348,9 +355,6 @@ sn_bus_fixup(struct pci_bus *bus) return; } sn_common_bus_fixup(bus, prom_bussoft_ptr); - sn_legacy_pci_window_fixup(PCI_CONTROLLER(bus), - prom_bussoft_ptr->bs_legacy_io, - prom_bussoft_ptr->bs_legacy_mem); } list_for_each_entry(pci_dev, &bus->devices, bus_list) { sn_io_slot_fixup(pci_dev);