From patchwork Sun Dec 8 23:54:28 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yinghai Lu X-Patchwork-Id: 298907 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id F1DEB2C00A3 for ; Mon, 9 Dec 2013 10:55:01 +1100 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760125Ab3LHXyh (ORCPT ); Sun, 8 Dec 2013 18:54:37 -0500 Received: from userp1040.oracle.com ([156.151.31.81]:23126 "EHLO userp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1760091Ab3LHXya (ORCPT ); Sun, 8 Dec 2013 18:54:30 -0500 Received: from acsinet21.oracle.com (acsinet21.oracle.com [141.146.126.237]) by userp1040.oracle.com (Sentrion-MTA-4.3.1/Sentrion-MTA-4.3.1) with ESMTP id rB8NsPmb031679 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Sun, 8 Dec 2013 23:54:26 GMT Received: from aserz7022.oracle.com (aserz7022.oracle.com [141.146.126.231]) by acsinet21.oracle.com (8.14.4+Sun/8.14.4) with ESMTP id rB8NsPlv026992 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Sun, 8 Dec 2013 23:54:25 GMT Received: from abhmp0010.oracle.com (abhmp0010.oracle.com [141.146.116.16]) by aserz7022.oracle.com (8.14.4+Sun/8.14.4) with ESMTP id rB8NsOXc004754; Sun, 8 Dec 2013 23:54:24 GMT Received: from linux-siqj.site.site (/75.36.246.247) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Sun, 08 Dec 2013 15:54:24 -0800 From: Yinghai Lu To: Bjorn Helgaas Cc: Joseph Salisbury , linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, Yinghai Lu , stable@vger.kernel.org Subject: [PATCH 1/2] PCI: pcibus address to resource converting take bus instead of dev Date: Sun, 8 Dec 2013 15:54:28 -0800 Message-Id: <1386546869-31900-2-git-send-email-yinghai@kernel.org> X-Mailer: git-send-email 1.8.4 In-Reply-To: <1386546869-31900-1-git-send-email-yinghai@kernel.org> References: <1386546869-31900-1-git-send-email-yinghai@kernel.org> X-Source-IP: acsinet21.oracle.com [141.146.126.237] Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org For allocating resource under bus path, we do not have dev to pass along, and we only have bus to use instead. -v2: drop pcibios_bus_addr_to_resource(). Signed-off-by: Yinghai Lu Cc: stable@vger.kernel.org --- drivers/pci/host-bridge.c | 34 +++++++++++++++++++++------------- include/linux/pci.h | 5 +++++ 2 files changed, 26 insertions(+), 13 deletions(-) diff --git a/drivers/pci/host-bridge.c b/drivers/pci/host-bridge.c index a68dc61..c988a30 100644 --- a/drivers/pci/host-bridge.c +++ b/drivers/pci/host-bridge.c @@ -9,22 +9,19 @@ #include "pci.h" -static struct pci_bus *find_pci_root_bus(struct pci_dev *dev) +static struct pci_bus *find_pci_root_bus(struct pci_bus *bus) { - struct pci_bus *bus; - - bus = dev->bus; while (bus->parent) bus = bus->parent; return bus; } -static struct pci_host_bridge *find_pci_host_bridge(struct pci_dev *dev) +static struct pci_host_bridge *find_pci_host_bridge(struct pci_bus *bus) { - struct pci_bus *bus = find_pci_root_bus(dev); + struct pci_bus *root_bus = find_pci_root_bus(bus); - return to_pci_host_bridge(bus->bridge); + return to_pci_host_bridge(root_bus->bridge); } void pci_set_host_bridge_release(struct pci_host_bridge *bridge, @@ -40,10 +37,11 @@ static bool resource_contains(struct resource *res1, struct resource *res2) return res1->start <= res2->start && res1->end >= res2->end; } -void pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region, - struct resource *res) +void __pcibios_resource_to_bus(struct pci_bus *bus, + struct pci_bus_region *region, + struct resource *res) { - struct pci_host_bridge *bridge = find_pci_host_bridge(dev); + struct pci_host_bridge *bridge = find_pci_host_bridge(bus); struct pci_host_bridge_window *window; resource_size_t offset = 0; @@ -60,6 +58,11 @@ void pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region, region->start = res->start - offset; region->end = res->end - offset; } +void pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region, + struct resource *res) +{ + __pcibios_resource_to_bus(dev->bus, region, res); +} EXPORT_SYMBOL(pcibios_resource_to_bus); static bool region_contains(struct pci_bus_region *region1, @@ -68,10 +71,10 @@ static bool region_contains(struct pci_bus_region *region1, return region1->start <= region2->start && region1->end >= region2->end; } -void pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res, - struct pci_bus_region *region) +void __pcibios_bus_to_resource(struct pci_bus *bus, struct resource *res, + struct pci_bus_region *region) { - struct pci_host_bridge *bridge = find_pci_host_bridge(dev); + struct pci_host_bridge *bridge = find_pci_host_bridge(bus); struct pci_host_bridge_window *window; resource_size_t offset = 0; @@ -93,4 +96,9 @@ void pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res, res->start = region->start + offset; res->end = region->end + offset; } +void pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res, + struct pci_bus_region *region) +{ + __pcibios_bus_to_resource(dev->bus, res, region); +} EXPORT_SYMBOL(pcibios_bus_to_resource); diff --git a/include/linux/pci.h b/include/linux/pci.h index 1084a15..5c2cf8e 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -737,8 +737,13 @@ void pci_fixup_cardbus(struct pci_bus *); /* Generic PCI functions used internally */ +void __pcibios_resource_to_bus(struct pci_bus *bus, + struct pci_bus_region *region, + struct resource *res); void pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region, struct resource *res); +void __pcibios_bus_to_resource(struct pci_bus *bus, struct resource *res, + struct pci_bus_region *region); void pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res, struct pci_bus_region *region); void pcibios_scan_specific_bus(int busn);