[4/4,V2] ACPI: introduce module parameter acpi.aml_debug

Commit Message

Zhang, Rui July 1, 2010, 5:37 a.m. UTC

None

Patch

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;