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trace doc: convert trace/intel_th.txt to rst format

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This converts the plain text documentation to reStructuredText format and
add it into Sphinx TOC tree. No essential content change.

Cc: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Changbin Du <changbin.du@intel.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
This commit is contained in:
Changbin Du
2018-02-17 13:39:49 +08:00
committed by Jonathan Corbet
parent 8df2d75e6e
commit 6613581ecd
2 changed files with 23 additions and 21 deletions
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1
Documentation/trace/index.rst
View File

@@ -19,3 +19,4 @@ Linux Tracing Technologies
events-msr
mmiotrace
hwlat_detector
intel_th

17
Documentation/trace/intel_th.txt → Documentation/trace/intel_th.rst
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@@ -1,3 +1,4 @@
=======================
Intel(R) Trace Hub (TH)
=======================
@@ -65,41 +66,41 @@ allocated, are accessible via /dev/intel_th0/msc{0,1}.
Quick example
-------------
# figure out which GTH port is the first memory controller:
# figure out which GTH port is the first memory controller::
$ cat /sys/bus/intel_th/devices/0-msc0/port
0
# looks like it's port 0, configure master 33 to send data to port 0:
# looks like it's port 0, configure master 33 to send data to port 0::
$ echo 0 > /sys/bus/intel_th/devices/0-gth/masters/33
# allocate a 2-windowed multiblock buffer on the first memory
# controller, each with 64 pages:
# controller, each with 64 pages::
$ echo multi > /sys/bus/intel_th/devices/0-msc0/mode
$ echo 64,64 > /sys/bus/intel_th/devices/0-msc0/nr_pages
# enable wrapping for this controller, too:
# enable wrapping for this controller, too::
$ echo 1 > /sys/bus/intel_th/devices/0-msc0/wrap
# and enable tracing into this port:
# and enable tracing into this port::
$ echo 1 > /sys/bus/intel_th/devices/0-msc0/active
# .. send data to master 33, see stm.txt for more details ..
# .. wait for traces to pile up ..
# .. and stop the trace:
# .. and stop the trace::
$ echo 0 > /sys/bus/intel_th/devices/0-msc0/active
# and now you can collect the trace from the device node:
# and now you can collect the trace from the device node::
$ cat /dev/intel_th0/msc0 > my_stp_trace
Host Debugger Mode
==================
------------------
It is possible to configure the Trace Hub and control its trace
capture from a remote debug host, which should be connected via one of