From patchwork Sun Sep 27 05:15:02 2009 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Zhao, Yakui" X-Patchwork-Id: 50283 Received: from vger.kernel.org (vger.kernel.org [209.132.176.167]) by demeter.kernel.org (8.14.2/8.14.2) with ESMTP id n8R5FuhZ008849 for ; Sun, 27 Sep 2009 05:15:56 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751383AbZI0FPq (ORCPT ); Sun, 27 Sep 2009 01:15:46 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751431AbZI0FPq (ORCPT ); Sun, 27 Sep 2009 01:15:46 -0400 Received: from mga01.intel.com ([192.55.52.88]:63615 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751383AbZI0FPp (ORCPT ); Sun, 27 Sep 2009 01:15:45 -0400 Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga101.fm.intel.com with ESMTP; 26 Sep 2009 22:10:55 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.44,459,1249282800"; d="scan'208";a="730561749" Received: from yakui_zhao.sh.intel.com (HELO [10.239.13.79]) ([10.239.13.79]) by fmsmga001.fm.intel.com with ESMTP; 26 Sep 2009 22:18:45 -0700 Subject: [PATCH] ACPI : ACPI: Don't disable ARB_DISABLE on some old cpus From: ykzhao To: lenb@kernel.org Cc: linux-acpi@vger.kernel.org Organization: Intel Open Source Technology Center Date: Sun, 27 Sep 2009 13:15:02 +0800 Message-Id: <1254028502.4298.11.camel@localhost.localdomain> Mime-Version: 1.0 X-Mailer: Evolution 2.22.1 (2.22.1-2.fc9) Sender: linux-acpi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org From: Zhao Yakui Don't disable ARB_DISABLE when the familary ID is 0x0F. It is required when it enters the C3 state on the old cpus. http://bugzilla.kernel.org/show_bug.cgi?id=14211 Signed-off-by: Zhao Yakui --- arch/x86/kernel/acpi/cstate.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Index: linux-2.6/arch/x86/kernel/acpi/cstate.c =================================================================== --- linux-2.6.orig/arch/x86/kernel/acpi/cstate.c 2009-09-18 10:28:32.000000000 +0800 +++ linux-2.6/arch/x86/kernel/acpi/cstate.c 2009-09-24 14:59:57.000000000 +0800 @@ -48,7 +48,7 @@ * P4, Core and beyond CPUs */ if (c->x86_vendor == X86_VENDOR_INTEL && - (c->x86 > 0x6 || (c->x86 == 6 && c->x86_model >= 14))) + (c->x86 > 0xf || (c->x86 == 6 && c->x86_model >= 14))) flags->bm_control = 0; } EXPORT_SYMBOL(acpi_processor_power_init_bm_check);