Lines Matching +full:multi +full:- +full:system

1 .. SPDX-License-Identifier: GPL-2.0
8 --------
12 sources over several types of trace output ports encoded in System
13 Trace Protocol (MIPI STPv2) and is intended to perform full system
23   - Software Trace Hub (STH), trace source, which is a System Trace
25   - Memory Storage Unit (MSU), trace output, which allows storing
26     trace hub output in system memory,
27   - Parallel Trace Interface output (PTI), trace output to an external
29   - Global Trace Hub (GTH), which is a switch and a central component
33 Documentation/ABI/testing/sysfs-bus-intel_th-output-devices, the most
39 description is at Documentation/ABI/testing/sysfs-bus-intel_th-devices-gth.
45 MSU can be configured to collect trace data into a system memory
54 [1] https://software.intel.com/sites/default/files/managed/d3/3c/intel-th-developer-manual.pdf
57 ------------------
59 For each Intel TH device in the system a bus of its own is
62 begin with this id: 0-gth, 0-msc0, 0-msc1, 0-pti, 0-sth, which is
70 -------------
74 	$ cat /sys/bus/intel_th/devices/0-msc0/port
79 	$ echo 0 > /sys/bus/intel_th/devices/0-gth/masters/33
81 # allocate a 2-windowed multiblock buffer on the first memory
84 	$ echo multi > /sys/bus/intel_th/devices/0-msc0/mode
85 	$ echo 64,64 > /sys/bus/intel_th/devices/0-msc0/nr_pages
89 	$ echo 1 > /sys/bus/intel_th/devices/0-msc0/wrap
93 	$ echo 1 > /sys/bus/intel_th/devices/0-msc0/active
99 	$ echo 0 > /sys/bus/intel_th/devices/0-msc0/active
106 ------------------
128 --------------
130 The Memory Storage Unit (MSU) driver provides an in-kernel API for
136  - notifying the software sink that a particular window is full, and
141  - tracking the "locked" state of windows and providing a way for the
145 An example sink driver, msu-sink illustrates the implementation of a
148 "multi" mode, it will fill out all the windows in the buffer as opposed
150 file (assuming msu-sink.ko is loaded).