From patchwork Thu Jul 1 05:37:49 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Zhang Rui X-Patchwork-Id: 109007 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter.kernel.org (8.14.4/8.14.3) with ESMTP id o615aeOp002965 for ; Thu, 1 Jul 2010 05:36:40 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753620Ab0GAFgk (ORCPT ); Thu, 1 Jul 2010 01:36:40 -0400 Received: from mga03.intel.com ([143.182.124.21]:55537 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753592Ab0GAFgj (ORCPT ); Thu, 1 Jul 2010 01:36:39 -0400 Received: from azsmga001.ch.intel.com ([10.2.17.19]) by azsmga101.ch.intel.com with ESMTP; 30 Jun 2010 22:36:40 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.53,517,1272870000"; d="scan'208";a="295078891" Received: from rzhang1-desktop.sh.intel.com (HELO [10.239.36.208]) ([10.239.36.208]) by azsmga001.ch.intel.com with ESMTP; 30 Jun 2010 22:36:37 -0700 Subject: Re: [PATCH 4/4 V2] ACPI: introduce module parameter acpi.aml_debug From: Zhang Rui To: Len Brown Cc: "linux-acpi@vger.kernel.org" , "Moore, Robert" In-Reply-To: References: <1276328790.19052.17845.camel@rzhang1-desktop> Date: Thu, 01 Jul 2010 13:37:49 +0800 Message-ID: <1277962669.4537.288.camel@rzhang1-desktop> Mime-Version: 1.0 X-Mailer: Evolution 2.28.1 Sender: linux-acpi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.3 (demeter.kernel.org [140.211.167.41]); Thu, 01 Jul 2010 05:36:41 +0000 (UTC) Index: linux-2.6/drivers/acpi/debugfs.c =================================================================== --- linux-2.6.orig/drivers/acpi/debugfs.c +++ linux-2.6/drivers/acpi/debugfs.c @@ -9,6 +9,9 @@ #define _COMPONENT ACPI_SYSTEM_COMPONENT ACPI_MODULE_NAME("debugfs"); +module_param_named(aml_debug_output, acpi_gbl_enable_aml_debug_object, bool, 0644); +MODULE_PARM_DESC(aml_debug_output, "To enable/disable the ACPI Debug Object output."); + /* -------------------------------------------------------------------------- DebugFS Interface -------------------------------------------------------------------------- */ Index: linux-2.6/Documentation/acpi/method-customizing.txt =================================================================== --- linux-2.6.orig/Documentation/acpi/method-customizing.txt +++ linux-2.6/Documentation/acpi/method-customizing.txt @@ -19,6 +19,8 @@ Note: Only ACPI METHOD can be overridden "Device", "OperationRegion", are not recognized. Note: The same ACPI control method can be overridden for many times, and it's always the latest one that used by Linux/kernel. +Note: To get the ACPI debug object output (Store (AAAA, Debug)), + please run "echo 1 > /sys/module/acpi/parameters/aml_debug_output". 1. override an existing method a) get the ACPI table via ACPI sysfs I/F. e.g. to get the DSDT, Index: linux-2.6/drivers/acpi/acpica/acglobal.h =================================================================== --- linux-2.6.orig/drivers/acpi/acpica/acglobal.h +++ linux-2.6/drivers/acpi/acpica/acglobal.h @@ -115,7 +115,7 @@ u8 ACPI_INIT_GLOBAL(acpi_gbl_use_default /* * Optionally enable output from the AML Debug Object. */ -u8 ACPI_INIT_GLOBAL(acpi_gbl_enable_aml_debug_object, FALSE); +u32 ACPI_INIT_GLOBAL(acpi_gbl_enable_aml_debug_object, FALSE); /* * Optionally copy the entire DSDT to local memory (instead of simply Index: linux-2.6/include/acpi/acpixf.h =================================================================== --- linux-2.6.orig/include/acpi/acpixf.h +++ linux-2.6/include/acpi/acpixf.h @@ -67,7 +67,7 @@ extern u8 acpi_gbl_leave_wake_gpes_disab extern u8 acpi_gbl_use_default_register_widths; extern acpi_name acpi_gbl_trace_method_name; extern u32 acpi_gbl_trace_flags; -extern u8 acpi_gbl_enable_aml_debug_object; +extern u32 acpi_gbl_enable_aml_debug_object; extern u8 acpi_gbl_copy_dsdt_locally; extern u8 acpi_gbl_truncate_io_addresses;