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* trace doc: convert trace/intel_th.txt to rst formatChangbin Du2018-03-071-121/+0
| | | | | | | | | 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>
* Documentation: fix ref to trace stm contentTom Saeger2017-10-191-1/+1
| | | | | Signed-off-by: Tom Saeger <tom.saeger@oracle.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* intel_th: Document debug host modeAlexander Shishkin2016-11-181-0/+22
| | | | Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
* intel_th: Add driver infrastructure for Intel(R) Trace Hub devicesAlexander Shishkin2015-10-041-0/+99
Intel(R) Trace Hub (TH) is a set of hardware blocks (subdevices) that produce, switch and output trace data from multiple hardware and software sources over several types of trace output ports encoded in System Trace Protocol (MIPI STPv2) and is intended to perform full system debugging. For these subdevices, we create a bus, where they can be discovered and configured by userspace software. This patch creates this bus infrastructure, three types of devices (source, output, switch), resource allocation, some callback mechanisms to facilitate communication between the subdevices' drivers and some common sysfs attributes. Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>