From 0dbf8669ce2910876e4aa61f71a9dc97eb2f0ca7 Mon Sep 17 00:00:00 2001
From: Len Brown <len.brown@intel.com>
Date: Wed, 14 Nov 2007 19:53:21 -0500
Subject: [PATCH] --- yaml --- r: 84096 b: refs/heads/master c:
 b4d2730a0dda91a43c81a02f5225f5d536cabb09 h: refs/heads/master v: v3

---
 [refs]                                      |  2 +-
 trunk/Documentation/00-INDEX                |  3 +++
 trunk/Documentation/acpi/method-tracing.txt | 26 +++++++++++++++++++++
 3 files changed, 30 insertions(+), 1 deletion(-)
 create mode 100644 trunk/Documentation/acpi/method-tracing.txt

diff --git a/[refs] b/[refs]
index 4c9cd8b25938..de8927c33a75 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 4169c45f179e285feac6bcf25f4bd0db6b109bab
+refs/heads/master: b4d2730a0dda91a43c81a02f5225f5d536cabb09
diff --git a/trunk/Documentation/00-INDEX b/trunk/Documentation/00-INDEX
index 299615d821ac..161edbcf905e 100644
--- a/trunk/Documentation/00-INDEX
+++ b/trunk/Documentation/00-INDEX
@@ -14,6 +14,7 @@ Following translations are available on the WWW:
 	- this file.
 ABI/
 	- info on kernel <-> userspace ABI and relative interface stability.
+
 BUG-HUNTING
 	- brute force method of doing binary search of patches to find bug.
 Changes
@@ -66,6 +67,8 @@ VGA-softcursor.txt
 	- how to change your VGA cursor from a blinking underscore.
 accounting/
 	- documentation on accounting and taskstats.
+acpi/
+	- info on ACPI-specific hooks in the kernel.
 aoe/
 	- description of AoE (ATA over Ethernet) along with config examples.
 applying-patches.txt
diff --git a/trunk/Documentation/acpi/method-tracing.txt b/trunk/Documentation/acpi/method-tracing.txt
new file mode 100644
index 000000000000..f6efb1ea559a
--- /dev/null
+++ b/trunk/Documentation/acpi/method-tracing.txt
@@ -0,0 +1,26 @@
+/sys/module/acpi/parameters/:
+
+trace_method_name
+	The AML method name that the user wants to trace
+
+trace_debug_layer
+	The temporary debug_layer used when tracing the method.
+	Using 0xffffffff by default if it is 0.
+
+trace_debug_level
+	The temporary debug_level used when tracing the method.
+	Using 0x00ffffff by default if it is 0.
+
+trace_state
+	The status of the tracing feature.
+
+	"enabled" means this feature is enabled
+	and the AML method is traced every time it's executed.
+
+	"1" means this feature is enabled and the AML method
+	will only be traced during the next execution.
+
+	"disabled" means this feature is disabled.
+	Users can enable/disable this debug tracing feature by
+	"echo string > /sys/module/acpi/parameters/trace_state".
+	"string" should be one of "enable", "disable" and "1".