linux-dev/drivers/hwtracing/stm/Kconfig, branch master

stm class: ftrace: Change dependency to TRACING

2020-10-05T10:43:53Z

We will support copying event trace to STM. Change STM_SOURCE_FTRACE to depend on TRACING since we will support multiple tracers. Reviewed-by: Steven Rostedt (VMware) Reviewed-by: Alexander Shishkin Signed-off-by: Tingwei Zhang Signed-off-by: Alexander Shishkin Link: https://lore.kernel.org/r/20201005071319.78508-2-alexander.shishkin@linux.intel.com Signed-off-by: Greg Kroah-Hartman

treewide: Add SPDX license identifier - Makefile/Kconfig

2019-05-21T08:50:46Z

Add SPDX license identifiers to all Make/Kconfig files which: - Have no license information of any form These files fall under the project license, GPL v2 only. The resulting SPDX license identifier is: GPL-2.0-only Signed-off-by: Thomas Gleixner Signed-off-by: Greg Kroah-Hartman

stm class: Add MIPI SyS-T protocol support

2018-10-11T10:12:54Z

This adds support for MIPI SyS-T protocol as specified in an open standard [1]. In addition to marking message boundaries, it also supports tagging messages with the source UUID, to provide better distinction between trace sources, including payload length and timestamp in the message's metadata. This driver adds attributes to STP policy nodes to control/configure these metadata features. [1] https://www.mipi.org/specifications/sys-t Signed-off-by: Alexander Shishkin Tested-by: Mathieu Poirier Signed-off-by: Greg Kroah-Hartman

stm class: Factor out default framing protocol

2018-10-11T10:12:54Z

The STP framing pattern that the stm class implicitly applies to the data payload is, in fact, a protocol. This patch moves the relevant code out of the stm core into its own driver module. Signed-off-by: Alexander Shishkin Tested-by: Mathieu Poirier Signed-off-by: Greg Kroah-Hartman

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

2016-11-22T22:47:48Z

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 Acked-by: Alexander Shishkin Signed-off-by: Steven Rostedt

stm class: Add heartbeat stm source device

2016-02-20T22:09:14Z

Heartbeat stm source may have multiple instances (for connecting to different stm devices). Each instance will send a periodic test message over its stm device when it is linked. This can be used for testing stm class framework, stm device drivers or as a heartbeat over the stm link. Signed-off-by: Alexander Shishkin Signed-off-by: Greg Kroah-Hartman

stm class: Select CONFIG_SRCU

2016-02-08T06:43:17Z

The newly added STM code uses SRCU, but does not ensure that this code is part of the kernel: drivers/built-in.o: In function `stm_source_link_show': include/linux/srcu.h:221: undefined reference to `__srcu_read_lock' include/linux/srcu.h:238: undefined reference to `__srcu_read_unlock' drivers/built-in.o: In function `stm_source_link_drop': include/linux/srcu.h:221: undefined reference to `__srcu_read_lock' include/linux/srcu.h:238: undefined reference to `__srcu_read_unlock' This adds a Kconfig 'select' statement like all the other SRCU using drivers have. Signed-off-by: Arnd Bergmann Fixes: 7bd1d4093c2f ("stm class: Introduce an abstraction for System Trace Module devices") Signed-off-by: Alexander Shishkin Signed-off-by: Greg Kroah-Hartman

stm class: Hide STM-specific options if STM is disabled

2016-02-08T06:43:17Z

If STM=n, it doesn't make sense to ask about STM_DUMMY and STM_SOURCE_CONSOLE support, which are not even built when enabled anyway. Hence hide these options if STM=n. Reported-by: Linus Torvalds Signed-off-by: Geert Uytterhoeven Signed-off-by: Alexander Shishkin Signed-off-by: Greg Kroah-Hartman

stm class: Select configfs

2015-10-17T06:25:48Z

STM policy handling is basically configfs, I honestly don't know how we ended up without a Kconfig dependency, but thanks to randconfig testing, it's now caught. Reported-by: Jim Davis Reported-by: kbuild test robot Reported-by: Arnd Bergmann Signed-off-by: Alexander Shishkin Signed-off-by: Greg Kroah-Hartman

stm class: stm_console: Add kernel-console-over-stm driver

2015-10-04T19:28:58Z

This is a simple stm_source class device driver (kernelspace stm trace source) that registers a console and sends kernel messages over STM devices. Reviewed-by: Mathieu Poirier Signed-off-by: Alexander Shishkin Signed-off-by: Greg Kroah-Hartman