From patchwork Wed Sep 19 18:54:22 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yinghai Lu X-Patchwork-Id: 1480081 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 312893FE79 for ; Wed, 19 Sep 2012 19:05:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933086Ab2ISTEt (ORCPT ); Wed, 19 Sep 2012 15:04:49 -0400 Received: from rcsinet15.oracle.com ([148.87.113.117]:19517 "EHLO rcsinet15.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756230Ab2ISSzR (ORCPT ); Wed, 19 Sep 2012 14:55:17 -0400 Received: from acsinet21.oracle.com (acsinet21.oracle.com [141.146.126.237]) by rcsinet15.oracle.com (Sentrion-MTA-4.2.2/Sentrion-MTA-4.2.2) with ESMTP id q8JIt6Dl023874 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Wed, 19 Sep 2012 18:55:07 GMT Received: from acsmt357.oracle.com (acsmt357.oracle.com [141.146.40.157]) by acsinet21.oracle.com (8.14.4+Sun/8.14.4) with ESMTP id q8JIt4OH020887 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Wed, 19 Sep 2012 18:55:06 GMT Received: from abhmt109.oracle.com (abhmt109.oracle.com [141.146.116.61]) by acsmt357.oracle.com (8.12.11.20060308/8.12.11) with ESMTP id q8JIt4Ax016297; Wed, 19 Sep 2012 13:55:04 -0500 Received: from linux-siqj.site (/10.132.126.191) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Wed, 19 Sep 2012 11:55:04 -0700 From: Yinghai Lu To: Bjorn Helgaas , Len Brown , 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 08/40] x86, PCI: Separate pcibios_allocate_dev_resources() Date: Wed, 19 Sep 2012 11:54:22 -0700 Message-Id: <1348080894-23412-9-git-send-email-yinghai@kernel.org> X-Mailer: git-send-email 1.7.7 In-Reply-To: <1348080894-23412-1-git-send-email-yinghai@kernel.org> References: <1348080894-23412-1-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 Thus pcibios_allocate_resources() could more simple and clean Signed-off-by: Yinghai Lu --- arch/x86/pci/i386.c | 42 +++++++++++++++++++++++------------------- 1 files changed, 23 insertions(+), 19 deletions(-) diff --git a/arch/x86/pci/i386.c b/arch/x86/pci/i386.c index 9800362..5817cf2 100644 --- a/arch/x86/pci/i386.c +++ b/arch/x86/pci/i386.c @@ -232,9 +232,8 @@ struct pci_check_idx_range { int end; }; -static void __init pcibios_allocate_resources(int pass) +static void __init pcibios_allocate_dev_resources(struct pci_dev *dev, int pass) { - struct pci_dev *dev = NULL; int idx, disabled, i; u16 command; struct resource *r; @@ -246,14 +245,13 @@ static void __init pcibios_allocate_resources(int pass) #endif }; - for_each_pci_dev(dev) { - pci_read_config_word(dev, PCI_COMMAND, &command); - for (i = 0; i < ARRAY_SIZE(idx_range); i++) + pci_read_config_word(dev, PCI_COMMAND, &command); + for (i = 0; i < ARRAY_SIZE(idx_range); i++) for (idx = idx_range[i].start; idx <= idx_range[i].end; idx++) { r = &dev->resource[idx]; - if (r->parent) /* Already allocated */ + if (r->parent) /* Already allocated */ continue; - if (!r->start) /* Address not assigned at all */ + if (!r->start) /* Address not assigned at all */ continue; if (r->flags & IORESOURCE_IO) disabled = !(command & PCI_COMMAND_IO); @@ -272,23 +270,29 @@ static void __init pcibios_allocate_resources(int pass) } } } - if (!pass) { - r = &dev->resource[PCI_ROM_RESOURCE]; - if (r->flags & IORESOURCE_ROM_ENABLE) { - /* Turn the ROM off, leave the resource region, - * but keep it unregistered. */ - u32 reg; - dev_dbg(&dev->dev, "disabling ROM %pR\n", r); - r->flags &= ~IORESOURCE_ROM_ENABLE; - pci_read_config_dword(dev, - dev->rom_base_reg, ®); - pci_write_config_dword(dev, dev->rom_base_reg, + if (!pass) { + r = &dev->resource[PCI_ROM_RESOURCE]; + if (r->flags & IORESOURCE_ROM_ENABLE) { + /* Turn the ROM off, leave the resource region, + * but keep it unregistered. */ + u32 reg; + dev_dbg(&dev->dev, "disabling ROM %pR\n", r); + r->flags &= ~IORESOURCE_ROM_ENABLE; + pci_read_config_dword(dev, dev->rom_base_reg, ®); + pci_write_config_dword(dev, dev->rom_base_reg, reg & ~PCI_ROM_ADDRESS_ENABLE); - } } } } +static void __init pcibios_allocate_resources(int pass) +{ + struct pci_dev *dev = NULL; + + for_each_pci_dev(dev) + pcibios_allocate_dev_resources(dev, pass); +} + static int __init pcibios_assign_resources(void) { struct pci_dev *dev = NULL;