From: Zhang Rui <rui.zhang@intel.com>
To: "Brown, Len" <lenb@kernel.org>
Cc: "linux-acpi@vger.kernel.org" <linux-acpi@vger.kernel.org>,
"Zhang, Rui" <rui.zhang@intel.com>,
Lin Ming <ming.m.lin@intel.com>,
"Moore, Robert" <robert.moore@intel.com>
Subject: [PATCH 5/5] ACPI: introduce module parameter acpi.aml_debug
Date: Fri, 11 Jun 2010 13:48:06 +0800 [thread overview]
Message-ID: <1276235286.19052.15875.camel@rzhang1-desktop> (raw)
Introduce module parameter acpi.aml_debug.
With acpi.aml_debug set, we can get AML debug object
output (Store (AAA, Debug)), even with CONFIG_ACPI_DEBUG
cleared.
Together with the runtime custom method,
we can debug AML code problems without rebuilding the kernel.
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
---
drivers/acpi/acpica/acglobal.h | 2 +-
drivers/acpi/sysfs.c | 4 ++++
include/acpi/acpixf.h | 2 +-
3 files changed, 6 insertions(+), 2 deletions(-)
Index: linux-2.6/drivers/acpi/sysfs.c
===================================================================
--- linux-2.6.orig/drivers/acpi/sysfs.c
+++ linux-2.6/drivers/acpi/sysfs.c
@@ -219,6 +219,10 @@ static int param_get_acpica_version(char
module_param_call(acpica_version, NULL, param_get_acpica_version, NULL, 0444);
+/* /sys/module/acpi/parameters/aml_debug */
+
+module_param_named(aml_debug, acpi_gbl_enable_aml_debug_object, uint, 0644);
+
/* /sys/firmware/acpi/tables/ */
static LIST_HEAD(acpi_table_attr_list);
static struct kobject *tables_kobj;
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 u32 acpi_current_gpe_count;
next reply other threads:[~2010-06-11 5:47 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-06-11 5:48 Zhang Rui [this message]
2010-06-11 16:11 ` [PATCH 5/5] ACPI: introduce module parameter acpi.aml_debug Len Brown
2010-06-12 3:05 ` Zhang Rui
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