stm class: ftrace: Add ftrace-export-over-stm driver

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This patch adds a driver that models itself as an stm_source called
stm_ftrace. Once the stm device and stm_ftrace have been linked via
sysfs, the driver registers itself as a trace_export and everything
passed to the interface from Ftrace subsystem will end up in the STM
trace engine.

Link: http://lkml.kernel.org/r/1479715043-6534-3-git-send-email-zhang.chunyan@linaro.org

Signed-off-by: Chunyan Zhang <zhang.chunyan@linaro.org>
Acked-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

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Chunyan Zhang 2016-11-21 15:57:19 +08:00 • committed by Steven Rostedt

parent 478409dd68

commit 262e1f6e39

3 changed files with 100 additions and 0 deletions

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11

drivers/hwtracing/stm/Kconfig

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2

drivers/hwtracing/stm/Makefile

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87

drivers/hwtracing/stm/ftrace.c

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