From mboxrd@z Thu Jan 1 00:00:00 1970 From: ykzhao Subject: [PATCH] ACPI : ACPI: Don't disable ARB_DISABLE on some old cpus Date: Sun, 27 Sep 2009 13:15:02 +0800 Message-ID: <1254028502.4298.11.camel@localhost.localdomain> Mime-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit Return-path: 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 Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: lenb@kernel.org Cc: 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(-) 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);