Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754505Ab2BEG7M (ORCPT ); Sun, 5 Feb 2012 01:59:12 -0500 Received: from acsinet15.oracle.com ([141.146.126.227]:41847 "EHLO acsinet15.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753888Ab2BEG7J (ORCPT ); Sun, 5 Feb 2012 01:59:09 -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 04/24] PCI: Add busn_res operation functions Date: Sat, 4 Feb 2012 22:57:48 -0800 Message-Id: <1328425088-6562-5-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: acsinet21.oracle.com [141.146.126.237] X-Auth-Type: Internal IP X-CT-RefId: str=0001.0A090207.4F2E28B5.0074,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: 2675 Lines: 83 will use them insert/update busn res in pci_bus Signed-off-by: Yinghai Lu --- drivers/pci/probe.c | 42 ++++++++++++++++++++++++++++++++++++++++++ include/linux/pci.h | 3 +++ 2 files changed, 45 insertions(+), 0 deletions(-) diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index a114173..8d4de5e 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -1622,6 +1622,48 @@ err_out: return NULL; } +void pci_bus_insert_busn_res(struct pci_bus *b, int bus, int bus_max) +{ + struct resource *res = &b->busn_res; + struct resource *parent_res = &iobusn_resource; + int ret; + + res->start = busn(pci_domain_nr(b), bus); + res->end = busn(pci_domain_nr(b), bus_max); + res->flags = IORESOURCE_BUS; + + if (!pci_is_root_bus(b)) + parent_res = &b->parent->busn_res; + + ret = insert_resource(parent_res, res); + + dev_printk(KERN_DEBUG, &b->dev, + "busn_res: %pR %s inserted under %pR\n", + res, ret ? "can not be" : "is", parent_res); +} + +void pci_bus_update_busn_res_end(struct pci_bus *b, int bus_max) +{ + struct resource *res = &b->busn_res; + struct resource old_res = *res; + + res->end = busn_update_bus_nr(res->end, bus_max); + dev_printk(KERN_DEBUG, &b->dev, + "busn_res: %pR end updated to %pR\n", + &old_res, res); +} + +void pci_bus_release_busn_res(struct pci_bus *b) +{ + struct resource *res = &b->busn_res; + int ret; + + ret = release_resource(res); + dev_printk(KERN_DEBUG, &b->dev, + "busn_res: %pR %s released\n", + 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) { diff --git a/include/linux/pci.h b/include/linux/pci.h index 94ad468..3da935c 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -665,6 +665,9 @@ struct pci_bus *pci_scan_bus(int bus, struct pci_ops *ops, void *sysdata); struct pci_bus *pci_create_root_bus(struct device *parent, int bus, struct pci_ops *ops, void *sysdata, struct list_head *resources); +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(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/