From mboxrd@z Thu Jan 1 00:00:00 1970 From: Yinghai Lu Subject: [PATCH] pci: increase alignment to make more space for hidden code Date: Sun, 11 Oct 2009 14:17:16 -0700 Message-ID: <4AD24B5C.4050905@kernel.org> References: <200908072333.24631.storm@sys49152.net> <200908160400.03391.storm@sys49152.net> <4ACAC8F1.1050706@kernel.org> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: Received: from hera.kernel.org ([140.211.167.34]:39111 "EHLO hera.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751907AbZJKVSj (ORCPT ); Sun, 11 Oct 2009 17:18:39 -0400 In-Reply-To: <4ACAC8F1.1050706@kernel.org> Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: Len Brown , Linus Torvalds , Jesse Barnes , Ingo Molnar Cc: Ricardo Jorge da Fonseca Marques Ferreira , Linux Kernel Mailing List , linux-acpi@vger.kernel.org, Yannick Roehlly , Ivan Kokshaysky , x86@kernel.org for http://bugzilla.kernel.org/show_bug.cgi?id=13940 some system when acpi are enabled, acpi clears some BAR for some devices without reason, and kernel will need to allocate devices for them. try to increase alignment to get more safe range for unassigned devices. Signed-off-by: Yinghai Lu --- arch/x86/kernel/e820.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) Index: linux-2.6/arch/x86/kernel/e820.c =================================================================== --- linux-2.6.orig/arch/x86/kernel/e820.c +++ linux-2.6/arch/x86/kernel/e820.c @@ -1378,8 +1378,8 @@ static unsigned long ram_alignment(resou if (mb < 16) return 1024*1024; - /* To 32MB for anything above that */ - return 32*1024*1024; + /* To 64MB for anything above that */ + return 64*1024*1024; } #define MAX_RESOURCE_SIZE ((resource_size_t)-1)