Add documentation for new config terms.
Signed-off-by: Adrian Hunter <adrian.hun...@intel.com>
---
tools/perf/Documentation/intel-pt.txt | 36 +++++++++++++++++++++++++++++++++++
1 file changed, 36 insertions(+)
diff --git a/tools/perf/Documentation/intel-pt.txt
b/tools/perf/Documentation/intel-pt.txt
index b0b3007d3c9c..d157dee7a4ec 100644
--- a/tools/perf/Documentation/intel-pt.txt
+++ b/tools/perf/Documentation/intel-pt.txt
@@ -364,6 +364,42 @@ cyc_thresh Specifies how frequently CYC packets are
produced - see cyc
CYC packets are not requested by default.
+pt Specifies pass-through which enables the 'branch' config term.
+
+ The default config selects 'pt' if it is available, so a user
will
+ never need to specify this term.
+
+branch Enable branch tracing. Branch tracing is enabled by default so
to
+ disable branch tracing use 'branch=0'.
+
+ The default config selects 'branch' if it is available.
+
+ptw Enable PTWRITE packets which are produced when a ptwrite
instruction
+ is executed.
+
+ Support for this feature is indicated by:
+
+ /sys/bus/event_source/devices/intel_pt/caps/ptwrite
+
+ which contains "1" if the feature is supported and
+ "0" otherwise.
+
+fup_on_ptw Enable a FUP packet to follow the PTWRITE packet. The FUP
packet
+ provides the address of the ptwrite instruction. In the
absence of
+ fup_on_ptw, the decoder will use the address of the previous
branch
+ if branch tracing is enabled, otherwise the address will be
zero.
+ Note that fup_on_ptw will work even when branch tracing is
disabled.
+
+pwr_evt Enable power events. The power events provide
information about
+ changes to the CPU C-state.
+
+ Support for this feature is indicated by:
+
+
/sys/bus/event_source/devices/intel_pt/caps/power_event_trace
+
+ which contains "1" if the feature is supported and
+ "0" otherwise.
+
new snapshot option
-------------------
--
1.9.1
