Lines Matching full:trace
4 System Trace Module
7 System Trace Module (STM) is a device described in MIPI STP specs as
8 STP trace stream generator. STP (System Trace Protocol) is a trace
9 protocol multiplexing data from multiple trace sources, each one of
12 hardware trace sources, others are available to software. Software
13 trace sources are usually free to pick for themselves any
16 On the receiving end of this STP stream (the decoder side), trace
18 order for the decoder to be able to make sense of the trace that
19 involves multiple trace sources, it needs to be able to map those
20 master/channel pairs to the trace sources that it understands.
30 process the trace data.
49 through 127 in it. Now, any producer (trace source) identifying itself
55 be used for trace sources with the id string of "user/dummy".
57 Trace sources have to open the stm class device's node and write their
58 trace data into its file descriptor.
60 In order to find an appropriate policy node for a given trace source,
61 several mechanisms can be used. First, a trace source can explicitly
76 Previously, if no policy nodes were found for a trace source, the stm
93 Examples of STM devices are Intel(R) Trace Hub [1] and Coresight STM
99 For kernel-based trace sources, there is "stm_source" device