From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932720AbZLRUMB (ORCPT ); Fri, 18 Dec 2009 15:12:01 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755600AbZLRUL6 (ORCPT ); Fri, 18 Dec 2009 15:11:58 -0500 Received: from hera.kernel.org ([140.211.167.34]:55345 "EHLO hera.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932632AbZLRULJ (ORCPT ); Fri, 18 Dec 2009 15:11:09 -0500 Message-ID: <4B2BE185.9060505@kernel.org> Date: Fri, 18 Dec 2009 12:09:41 -0800 From: Yinghai Lu User-Agent: Thunderbird 2.0.0.23 (X11/20090817) MIME-Version: 1.0 To: Jesse Barnes , Ingo Molnar , Thomas Gleixner , "H. Peter Anvin" CC: "linux-kernel@vger.kernel.org" , "linux-pci@vger.kernel.org" Subject: [PATCH 3/7] x86/pci: amd one chain system to use pci read out res References: <4B2BE063.4040704@kernel.org> In-Reply-To: <4B2BE063.4040704@kernel.org> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org found MSI amd k8 based laptops is hiding [0x70000000, 0x80000000) RAM from e820. enable amd one chain even for all. Signed-off-by: Yinghai Lu --- arch/x86/pci/amd_bus.c | 7 ++++--- arch/x86/pci/bus_numa.c | 5 ----- arch/x86/pci/bus_numa.h | 1 - 3 files changed, 4 insertions(+), 9 deletions(-) Index: linux-2.6/arch/x86/pci/amd_bus.c =================================================================== --- linux-2.6.orig/arch/x86/pci/amd_bus.c +++ linux-2.6/arch/x86/pci/amd_bus.c @@ -87,11 +87,12 @@ static int __init early_fill_mp_bus_info struct range range[RANGE_NUM]; u64 val; u32 address; + int found; if (!early_pci_allowed()) return -1; - found_all_numa_early = 0; + found = 0; for (i = 0; i < ARRAY_SIZE(pci_probes); i++) { u32 id; u16 device; @@ -105,12 +106,12 @@ static int __init early_fill_mp_bus_info device = (id>>16) & 0xffff; if (pci_probes[i].vendor == vendor && pci_probes[i].device == device) { - found_all_numa_early = 1; + found = 1; break; } } - if (!found_all_numa_early) + if (!found) return 0; pci_root_num = 0; Index: linux-2.6/arch/x86/pci/bus_numa.c =================================================================== --- linux-2.6.orig/arch/x86/pci/bus_numa.c +++ linux-2.6/arch/x86/pci/bus_numa.c @@ -5,7 +5,6 @@ int pci_root_num; struct pci_root_info pci_root_info[PCI_ROOT_NR]; -int found_all_numa_early; void x86_pci_root_bus_res_quirks(struct pci_bus *b) { @@ -21,10 +20,6 @@ void x86_pci_root_bus_res_quirks(struct if (!pci_root_num) return; - /* for amd, if only one root bus, don't need to do anything */ - if (pci_root_num < 2 && found_all_numa_early) - return; - for (i = 0; i < pci_root_num; i++) { if (pci_root_info[i].bus_min == b->number) break; Index: linux-2.6/arch/x86/pci/bus_numa.h =================================================================== --- linux-2.6.orig/arch/x86/pci/bus_numa.h +++ linux-2.6/arch/x86/pci/bus_numa.h @@ -20,7 +20,6 @@ struct pci_root_info { #define PCI_ROOT_NR 4 extern int pci_root_num; extern struct pci_root_info pci_root_info[PCI_ROOT_NR]; -extern int found_all_numa_early; extern void update_res(struct pci_root_info *info, resource_size_t start, resource_size_t end, unsigned long flags, int merge);