docs: coresight: Update documentation for CoreSight to cover CTI

[sfrench/cifs-2.6.git] / Documentation / trace / coresight / coresight.rst

diff --git a/Documentation/trace/coresight/coresight.rst b/Documentation/trace/coresight/coresight.rst
index a566719f8e7e2602ce43626d599727fc267ad2e8..108600ee1e12d2048ddcd00007b236bd3f2f88fb 100644 (file)
--- a/Documentation/trace/coresight/coresight.rst
+++ b/Documentation/trace/coresight/coresight.rst
@@ -491,8 +491,21 @@ interface provided for that purpose by the generic STM API::
 
 Details on how to use the generic STM API can be found here:- :doc:`../stm` [#second]_.
 
+The CTI & CTM Modules
+---------------------
+
+The CTI (Cross Trigger Interface) provides a set of trigger signals between
+individual CTIs and components, and can propagate these between all CTIs via
+channels on the CTM (Cross Trigger Matrix).
+
+A separate documentation file is provided to explain the use of these devices.
+(:doc:`coresight-ect`) [#fourth]_.
+
+
 .. [#first] Documentation/ABI/testing/sysfs-bus-coresight-devices-stm
 
 .. [#second] Documentation/trace/stm.rst
 
 .. [#third] https://github.com/Linaro/perf-opencsd
+
+.. [#fourth] Documentation/trace/coresight/coresight-ect.rst