Documentation/trace/stm.rst

1 .. SPDX-License-Identifier: GPL-2.0
18 order for the decoder to be able to make sense of the trace that
23 master 7 channel 15, while arbitrary user applications can use masters
34 associated with it, located in "stp-policy" subsystem directory in
40 	$ ls /config/stp-policy/dummy_stm.my-policy/user
42 	$ cat /config/stp-policy/dummy_stm.my-policy/user/masters
44 	$ cat /config/stp-policy/dummy_stm.my-policy/user/channels
70 catch-all entry "default" will be used, if it exists. This entry also
81 and have better control over the un-identified sources.
84 to userspace for zero-copy writing. One mappable page (in terms of
99 For kernel-based trace sources, there is "stm_source" device
106 For examples on how to use stm_source interface in the kernel, refer
115 node, the stm core will use the catch-all entry "default", if one
123 the "stm_console" driver, which basically provides a one-way console
137 would store into ring buffer will be exported via the stm device at
142 * [1] https://software.intel.com/sites/default/files/managed/d3/3c/intel-th-developer-manual.pdf