From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752861Ab0ESVwG (ORCPT ); Wed, 19 May 2010 17:52:06 -0400 Received: from hera.kernel.org ([140.211.167.34]:41480 "EHLO hera.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752590Ab0ESVwB (ORCPT ); Wed, 19 May 2010 17:52:01 -0400 Date: Wed, 19 May 2010 21:51:42 GMT From: tip-bot for Jacob Pan Cc: linux-kernel@vger.kernel.org, hpa@zytor.com, mingo@redhat.com, tglx@linutronix.de, hpa@linux.intel.com, jacob.jun.pan@linux.intel.com Reply-To: mingo@redhat.com, hpa@zytor.com, linux-kernel@vger.kernel.org, tglx@linutronix.de, jacob.jun.pan@linux.intel.com, hpa@linux.intel.com In-Reply-To: <1274295685-6774-2-git-send-email-jacob.jun.pan@linux.intel.com> References: <1274295685-6774-2-git-send-email-jacob.jun.pan@linux.intel.com> To: linux-tip-commits@vger.kernel.org Subject: [tip:x86/mrst] x86: detect scattered cpuid features earlier Message-ID: Git-Commit-ID: 1dedefd1a066a795a87afca9c0236e1a94de9bf6 X-Mailer: tip-git-log-daemon MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.2.3 (hera.kernel.org [127.0.0.1]); Wed, 19 May 2010 21:51:43 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit-ID: 1dedefd1a066a795a87afca9c0236e1a94de9bf6 Gitweb: http://git.kernel.org/tip/1dedefd1a066a795a87afca9c0236e1a94de9bf6 Author: Jacob Pan AuthorDate: Wed, 19 May 2010 12:01:23 -0700 Committer: H. Peter Anvin CommitDate: Wed, 19 May 2010 13:32:12 -0700 x86: detect scattered cpuid features earlier Some extra CPU features such as ARAT is needed in early boot so that x86_init function pointers can be set up properly. http://lkml.org/lkml/2010/5/18/519 At start_kernel() level, this patch moves init_scattered_cpuid_features() from check_bugs() to setup_arch() -> early_cpu_init() which is earlier than platform specific x86_init layer setup. Suggested by HPA. Signed-off-by: Jacob Pan LKML-Reference: <1274295685-6774-2-git-send-email-jacob.jun.pan@linux.intel.com> Acked-by: Thomas Gleixner Signed-off-by: H. Peter Anvin --- arch/x86/kernel/cpu/common.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c index c1c00d0..284bf89 100644 --- a/arch/x86/kernel/cpu/common.c +++ b/arch/x86/kernel/cpu/common.c @@ -576,6 +576,7 @@ static void __cpuinit get_cpu_cap(struct cpuinfo_x86 *c) if (c->extended_cpuid_level >= 0x80000007) c->x86_power = cpuid_edx(0x80000007); + init_scattered_cpuid_features(c); } static void __cpuinit identify_cpu_without_cpuid(struct cpuinfo_x86 *c) @@ -731,7 +732,6 @@ static void __cpuinit generic_identify(struct cpuinfo_x86 *c) get_model_name(c); /* Default name */ - init_scattered_cpuid_features(c); detect_nopl(c); }