Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753672Ab0BITks (ORCPT ); Tue, 9 Feb 2010 14:40:48 -0500 Received: from sca-es-mail-2.Sun.COM ([192.18.43.133]:54595 "EHLO sca-es-mail-2.sun.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751851Ab0BITdt (ORCPT ); Tue, 9 Feb 2010 14:33:49 -0500 MIME-version: 1.0 Content-transfer-encoding: 7BIT Content-type: TEXT/PLAIN Date: Tue, 09 Feb 2010 11:32:15 -0800 From: Yinghai Lu Subject: [PATCH 04/35] x86/pci: amd one chain system to use pci read out res In-reply-to: <1265743966-17065-1-git-send-email-yinghai@kernel.org> To: Ingo Molnar , Thomas Gleixner , "H. Peter Anvin" , Andrew Morton , Linus Torvalds Cc: Jesse Barnes , Christoph Lameter , linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, Yinghai Lu Message-id: <1265743966-17065-5-git-send-email-yinghai@kernel.org> X-Mailer: git-send-email 1.6.4.2 References: <1265743966-17065-1-git-send-email-yinghai@kernel.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2543 Lines: 89 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 Acked-by: Jesse Barnes --- 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(-) diff --git a/arch/x86/pci/amd_bus.c b/arch/x86/pci/amd_bus.c index 2356ea1..e467071 100644 --- a/arch/x86/pci/amd_bus.c +++ b/arch/x86/pci/amd_bus.c @@ -87,11 +87,12 @@ static int __init early_fill_mp_bus_info(void) 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(void) 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; diff --git a/arch/x86/pci/bus_numa.c b/arch/x86/pci/bus_numa.c index 30f65ce..3411687 100644 --- a/arch/x86/pci/bus_numa.c +++ b/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 pci_bus *b) 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; diff --git a/arch/x86/pci/bus_numa.h b/arch/x86/pci/bus_numa.h index 374ecc5..f63e802 100644 --- a/arch/x86/pci/bus_numa.h +++ b/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); -- 1.6.4.2 -- 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/