diff options
Diffstat (limited to 'drivers/hwtracing/stm/Kconfig')
| -rw-r--r-- | drivers/hwtracing/stm/Kconfig | 33 |
1 files changed, 31 insertions, 2 deletions
diff --git a/drivers/hwtracing/stm/Kconfig b/drivers/hwtracing/stm/Kconfig index 723e2d90083d..eda6b11d40a1 100644 --- a/drivers/hwtracing/stm/Kconfig +++ b/drivers/hwtracing/stm/Kconfig @@ -1,7 +1,7 @@ +# SPDX-License-Identifier: GPL-2.0-only config STM tristate "System Trace Module devices" select CONFIGFS_FS - select SRCU help A System Trace Module (STM) is a device exporting data in System Trace Protocol (STP) format as defined by MIPI STP standards. @@ -11,6 +11,35 @@ config STM if STM +config STM_PROTO_BASIC + tristate "Basic STM framing protocol driver" + default CONFIG_STM + help + This is a simple framing protocol for sending data over STM + devices. This was the protocol that the STM framework used + exclusively until the MIPI SyS-T support was added. Use this + driver for compatibility with your existing STM setup. + + The receiving side only needs to be able to decode the MIPI + STP protocol in order to extract the data. + + If you want to be able to use the basic protocol or want the + backwards compatibility for your existing setup, say Y. + +config STM_PROTO_SYS_T + tristate "MIPI SyS-T STM framing protocol driver" + default CONFIG_STM + help + This is an implementation of MIPI SyS-T protocol to be used + over the STP transport. In addition to the data payload, it + also carries additional metadata for time correlation, better + means of trace source identification, etc. + + The receiving side must be able to decode this protocol in + addition to the MIPI STP, in order to extract the data. + + If you don't know what this is, say N. + config STM_DUMMY tristate "Dummy STM driver" help @@ -41,7 +70,7 @@ config STM_SOURCE_HEARTBEAT config STM_SOURCE_FTRACE tristate "Copy the output from kernel Ftrace to STM engine" - depends on FUNCTION_TRACER + depends on TRACING help This option can be used to copy the output from kernel Ftrace to STM engine. Enabling this option will introduce a slight |