[Feature] add GA346 baseline version
Change-Id: Ic62933698569507dcf98240cdf5d9931ae34348f
diff --git a/src/kernel/linux/v4.19/tools/perf/Documentation/itrace.txt b/src/kernel/linux/v4.19/tools/perf/Documentation/itrace.txt
new file mode 100644
index 0000000..a3abe04
--- /dev/null
+++ b/src/kernel/linux/v4.19/tools/perf/Documentation/itrace.txt
@@ -0,0 +1,36 @@
+ i synthesize instructions events
+ b synthesize branches events
+ c synthesize branches events (calls only)
+ r synthesize branches events (returns only)
+ x synthesize transactions events
+ w synthesize ptwrite events
+ p synthesize power events
+ e synthesize error events
+ d create a debug log
+ g synthesize a call chain (use with i or x)
+ l synthesize last branch entries (use with i or x)
+ s skip initial number of events
+
+ The default is all events i.e. the same as --itrace=ibxwpe
+
+ In addition, the period (default 100000) for instructions events
+ can be specified in units of:
+
+ i instructions
+ t ticks
+ ms milliseconds
+ us microseconds
+ ns nanoseconds (default)
+
+ Also the call chain size (default 16, max. 1024) for instructions or
+ transactions events can be specified.
+
+ Also the number of last branch entries (default 64, max. 1024) for
+ instructions or transactions events can be specified.
+
+ It is also possible to skip events generated (instructions, branches, transactions,
+ ptwrite, power) at the beginning. This is useful to ignore initialization code.
+
+ --itrace=i0nss1000000
+
+ skips the first million instructions.