From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758278AbZEKRCm (ORCPT ); Mon, 11 May 2009 13:02:42 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1757950AbZEKRAd (ORCPT ); Mon, 11 May 2009 13:00:33 -0400 Received: from hera.kernel.org ([140.211.167.34]:43670 "EHLO hera.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757944AbZEKRAc (ORCPT ); Mon, 11 May 2009 13:00:32 -0400 Subject: [PATCH 10/15 -tip] x86: Add cpufeature for System configuration From: Jaswinder Singh Rajput To: Ingo Molnar Cc: "H. Peter Anvin" , Robert Richter , x86 maintainers , LKML In-Reply-To: <1242060681.5139.19.camel@ht.satnam> References: <1242058494.5139.7.camel@ht.satnam> <1242060119.5139.9.camel@ht.satnam> <1242060207.5139.11.camel@ht.satnam> <1242060254.5139.12.camel@ht.satnam> <1242060301.5139.13.camel@ht.satnam> <1242060523.5139.15.camel@ht.satnam> <1242060567.5139.16.camel@ht.satnam> <1242060601.5139.17.camel@ht.satnam> <1242060644.5139.18.camel@ht.satnam> <1242060681.5139.19.camel@ht.satnam> Content-Type: text/plain Date: Mon, 11 May 2009 22:22:01 +0530 Message-Id: <1242060721.5139.20.camel@ht.satnam> Mime-Version: 1.0 X-Mailer: Evolution 2.24.5 (2.24.5-1.fc10) Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X86_FEATURE_SYS_CFG (System configuration MSRs) : MSRC001_0010 System Configuration Register (SYS_CFG) MSRC001_001F Northbridge Configuration Register (NB_CFG) Signed-off-by: Jaswinder Singh Rajput --- arch/x86/include/asm/cpufeature.h | 1 + arch/x86/kernel/cpu/amd.c | 8 ++++++++ 2 files changed, 9 insertions(+), 0 deletions(-) diff --git a/arch/x86/include/asm/cpufeature.h b/arch/x86/include/asm/cpufeature.h index 13050e9..674493f 100644 --- a/arch/x86/include/asm/cpufeature.h +++ b/arch/x86/include/asm/cpufeature.h @@ -164,6 +164,7 @@ #define X86_FEATURE_MISC (7*32+ 9) /* Miscellaneous features */ #define X86_FEATURE_PLATFORM (7*32+ 10) /* Platform feature */ #define X86_FEATURE_HW_CFG (7*32+ 11) /* Hardware configuration */ +#define X86_FEATURE_SYS_CFG (7*32+ 12) /* System configuration */ /* Virtualization flags: Linux defined */ #define X86_FEATURE_TPR_SHADOW (8*32+ 0) /* Intel TPR Shadow */ diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c index b2bccd2..8a8db1a 100644 --- a/arch/x86/kernel/cpu/amd.c +++ b/arch/x86/kernel/cpu/amd.c @@ -482,6 +482,14 @@ static void __cpuinit init_amd(struct cpuinfo_x86 *c) /* MSRC001_0015 Hardware Configuration Register (HWCR) */ set_cpu_cap(c, X86_FEATURE_HW_CFG); } + if (c->x86 >= 8) { /* K8+ */ + /* + * System configuration MSRs: + * MSRC001_0010 System Configuration Register (SYS_CFG) + * MSRC001_001F Northbridge Configuration Register (NB_CFG) + */ + set_cpu_cap(c, X86_FEATURE_SYS_CFG); + } if (c->x86 >= 0x10) { /* fam10h+ */ /* MSRC001_1022 Data Cache Configuration (DC_CFG) */ set_cpu_cap(c, X86_FEATURE_CACHE_CTL); -- 1.6.0.6