| rjw | 1f88458 | 2022-01-06 17:20:42 +0800 | [diff] [blame^] | 1 | config STM |
| 2 | tristate "System Trace Module devices" |
| 3 | select CONFIGFS_FS |
| 4 | select SRCU |
| 5 | help |
| 6 | A System Trace Module (STM) is a device exporting data in System |
| 7 | Trace Protocol (STP) format as defined by MIPI STP standards. |
| 8 | Examples of such devices are Intel(R) Trace Hub and Coresight STM. |
| 9 | |
| 10 | Say Y here to enable System Trace Module device support. |
| 11 | |
| 12 | if STM |
| 13 | |
| 14 | config STM_DUMMY |
| 15 | tristate "Dummy STM driver" |
| 16 | help |
| 17 | This is a simple dummy device that pretends to be an stm device |
| 18 | and discards your data. Use for stm class testing. |
| 19 | |
| 20 | If you don't know what this is, say N. |
| 21 | |
| 22 | config STM_SOURCE_CONSOLE |
| 23 | tristate "Kernel console over STM devices" |
| 24 | help |
| 25 | This is a kernel space trace source that sends kernel log |
| 26 | messages to trace hosts over STM devices. |
| 27 | |
| 28 | If you want to send kernel console messages over STM devices, |
| 29 | say Y. |
| 30 | |
| 31 | config STM_SOURCE_HEARTBEAT |
| 32 | tristate "Heartbeat over STM devices" |
| 33 | help |
| 34 | This is a kernel space trace source that sends periodic |
| 35 | heartbeat messages to trace hosts over STM devices. It is |
| 36 | also useful for testing stm class drivers and the stm class |
| 37 | framework itself. |
| 38 | |
| 39 | If you want to send heartbeat messages over STM devices, |
| 40 | say Y. |
| 41 | |
| 42 | config STM_SOURCE_FTRACE |
| 43 | tristate "Copy the output from kernel Ftrace to STM engine" |
| 44 | depends on FUNCTION_TRACER |
| 45 | help |
| 46 | This option can be used to copy the output from kernel Ftrace |
| 47 | to STM engine. Enabling this option will introduce a slight |
| 48 | timing effect. |
| 49 | |
| 50 | If you want to send kernel Ftrace messages over STM devices, |
| 51 | say Y. |
| 52 | |
| 53 | endif |