Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754856Ab2BEG70 (ORCPT ); Sun, 5 Feb 2012 01:59:26 -0500 Received: from acsinet15.oracle.com ([141.146.126.227]:41891 "EHLO acsinet15.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754677Ab2BEG7Y (ORCPT ); Sun, 5 Feb 2012 01:59:24 -0500 From: Yinghai Lu To: Jesse Barnes , Benjamin Herrenschmidt , Tony Luck Cc: Bjorn Helgaas , Dominik Brodowski , Andrew Morton , Linus Torvalds , Greg Kroah-Hartman , linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org, Yinghai Lu Subject: [PATCH 06/24] PCI: Add busn_res tracking in core Date: Sat, 4 Feb 2012 22:57:50 -0800 Message-Id: <1328425088-6562-7-git-send-email-yinghai@kernel.org> X-Mailer: git-send-email 1.7.7 In-Reply-To: <1328425088-6562-1-git-send-email-yinghai@kernel.org> References: <1328425088-6562-1-git-send-email-yinghai@kernel.org> X-Source-IP: ucsinet22.oracle.com [156.151.31.94] X-CT-RefId: str=0001.0A090201.4F2E28C3.009B,ss=1,re=0.000,fgs=0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3929 Lines: 113 update pci_scan_root_bus, and pci_scan_bus to insert root bus busn into iobusn_resource tree. Signed-off-by: Yinghai Lu --- drivers/pci/probe.c | 30 ++++++++++++++++++++++++++---- drivers/pci/remove.c | 1 + include/linux/pci.h | 4 ++++ 3 files changed, 31 insertions(+), 4 deletions(-) diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index fabf9d0..cdd6e83 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -1667,8 +1667,9 @@ void pci_bus_release_busn_res(struct pci_bus *b) res, ret ? "can not be" : "is"); } -struct pci_bus * __devinit pci_scan_root_bus(struct device *parent, int bus, - struct pci_ops *ops, void *sysdata, struct list_head *resources) +struct pci_bus * __devinit pci_scan_root_bus_max(struct device *parent, int bus, + int bus_max, struct pci_ops *ops, void *sysdata, + struct list_head *resources) { struct pci_bus *b; @@ -1676,10 +1677,26 @@ struct pci_bus * __devinit pci_scan_root_bus(struct device *parent, int bus, if (!b) return NULL; + pci_bus_insert_busn_res(b, bus, bus_max); b->subordinate = pci_scan_child_bus(b); pci_bus_add_devices(b); return b; } +EXPORT_SYMBOL(pci_scan_root_bus_max); + +struct pci_bus * __devinit pci_scan_root_bus(struct device *parent, int bus, + struct pci_ops *ops, void *sysdata, + struct list_head *resources) +{ + struct pci_bus *b; + + b = pci_scan_root_bus_max(parent, bus, 255, ops, sysdata, resources); + + if (b) + pci_bus_update_busn_res_end(b, b->subordinate); + + return b; +} EXPORT_SYMBOL(pci_scan_root_bus); /* Deprecated; use pci_scan_root_bus() instead */ @@ -1692,9 +1709,11 @@ struct pci_bus * __devinit pci_scan_bus_parented(struct device *parent, pci_add_resource(&resources, &ioport_resource); pci_add_resource(&resources, &iomem_resource); b = pci_create_root_bus(parent, bus, ops, sysdata, &resources); - if (b) + if (b) { + pci_bus_insert_busn_res(b, bus, 255); b->subordinate = pci_scan_child_bus(b); - else + pci_bus_update_busn_res_end(b, b->subordinate); + } else pci_free_resource_list(&resources); return b; } @@ -1710,7 +1729,10 @@ struct pci_bus * __devinit pci_scan_bus(int bus, struct pci_ops *ops, pci_add_resource(&resources, &iomem_resource); b = pci_create_root_bus(NULL, bus, ops, sysdata, &resources); if (b) { + pci_bus_insert_busn_res(b, bus, 255); b->subordinate = pci_scan_child_bus(b); + pci_bus_update_busn_res_end(b, b->subordinate); + pci_bus_add_devices(b); } else { pci_free_resource_list(&resources); diff --git a/drivers/pci/remove.c b/drivers/pci/remove.c index 82f8ae5..5b679d2 100644 --- a/drivers/pci/remove.c +++ b/drivers/pci/remove.c @@ -68,6 +68,7 @@ void pci_remove_bus(struct pci_bus *pci_bus) down_write(&pci_bus_sem); list_del(&pci_bus->node); + pci_bus_release_busn_res(pci_bus); up_write(&pci_bus_sem); if (!pci_bus->is_added) return; diff --git a/include/linux/pci.h b/include/linux/pci.h index 3da935c..d5b6786 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -668,6 +668,10 @@ struct pci_bus *pci_create_root_bus(struct device *parent, int bus, void pci_bus_insert_busn_res(struct pci_bus *b, int bus, int busmax); void pci_bus_update_busn_res_end(struct pci_bus *b, int busmax); void pci_bus_release_busn_res(struct pci_bus *b); +struct pci_bus * __devinit pci_scan_root_bus_max(struct device *parent, int bus, + int busmax, struct pci_ops *ops, + void *sysdata, + struct list_head *resources); struct pci_bus * __devinit pci_scan_root_bus(struct device *parent, int bus, struct pci_ops *ops, void *sysdata, struct list_head *resources); -- 1.7.7 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/