diff options
Diffstat (limited to 'drivers/hwtracing/coresight/Kconfig')
| -rw-r--r-- | drivers/hwtracing/coresight/Kconfig | 119 |
1 files changed, 105 insertions, 14 deletions
diff --git a/drivers/hwtracing/coresight/Kconfig b/drivers/hwtracing/coresight/Kconfig index 6ff30e25af55..45c1eb5dfcb7 100644 --- a/drivers/hwtracing/coresight/Kconfig +++ b/drivers/hwtracing/coresight/Kconfig @@ -3,11 +3,12 @@ # Coresight configuration # menuconfig CORESIGHT - bool "CoreSight Tracing Support" + tristate "CoreSight Tracing Support" depends on ARM || ARM64 depends on OF || ACPI select ARM_AMBA select PERF_EVENTS + select CONFIGFS_FS help This framework provides a kernel interface for the CoreSight debug and trace drivers to register themselves with. It's intended to build @@ -15,17 +16,24 @@ menuconfig CORESIGHT specification and configure the right series of components when a trace source gets enabled. + To compile this driver as a module, choose M here: the + module will be called coresight. + if CORESIGHT config CORESIGHT_LINKS_AND_SINKS - bool "CoreSight Link and Sink drivers" + tristate "CoreSight Link and Sink drivers" help This enables support for CoreSight link and sink drivers that are responsible for transporting and collecting the trace data respectively. Link and sinks are dynamically aggregated with a trace entity at run time to form a complete trace path. + To compile these drivers as modules, choose M here: the + modules will be called coresight-funnel and coresight-replicator. + config CORESIGHT_LINK_AND_SINK_TMC - bool "Coresight generic TMC driver" + tristate "Coresight generic TMC driver" + depends on CORESIGHT_LINKS_AND_SINKS help This enables support for the Trace Memory Controller driver. @@ -34,8 +42,11 @@ config CORESIGHT_LINK_AND_SINK_TMC complies with the generic implementation of the component without special enhancement or added features. + To compile this driver as a module, choose M here: the + module will be called coresight-tmc. + config CORESIGHT_CATU - bool "Coresight Address Translation Unit (CATU) driver" + tristate "Coresight Address Translation Unit (CATU) driver" depends on CORESIGHT_LINK_AND_SINK_TMC help Enable support for the Coresight Address Translation Unit (CATU). @@ -45,8 +56,11 @@ config CORESIGHT_CATU by looking up the provided table. CATU can also be used in pass-through mode where the address is not translated. + To compile this driver as a module, choose M here: the + module will be called coresight-catu. + config CORESIGHT_SINK_TPIU - bool "Coresight generic TPIU driver" + tristate "Coresight generic TPIU driver" depends on CORESIGHT_LINKS_AND_SINKS help This enables support for the Trace Port Interface Unit driver, @@ -56,16 +70,22 @@ config CORESIGHT_SINK_TPIU connected to an external host for use case capturing more traces than the on-board coresight memory can handle. + To compile this driver as a module, choose M here: the + module will be called coresight-tpiu. + config CORESIGHT_SINK_ETBV10 - bool "Coresight ETBv1.0 driver" + tristate "Coresight ETBv1.0 driver" depends on CORESIGHT_LINKS_AND_SINKS help This enables support for the Embedded Trace Buffer version 1.0 driver that complies with the generic implementation of the component without special enhancement or added features. + To compile this driver as a module, choose M here: the + module will be called coresight-etb10. + config CORESIGHT_SOURCE_ETM3X - bool "CoreSight Embedded Trace Macrocell 3.x driver" + tristate "CoreSight Embedded Trace Macrocell 3.x driver" depends on !ARM64 select CORESIGHT_LINKS_AND_SINKS help @@ -74,19 +94,33 @@ config CORESIGHT_SOURCE_ETM3X This is primarily useful for instruction level tracing. Depending the ETM version data tracing may also be available. + To compile this driver as a module, choose M here: the + module will be called coresight-etm3x. + config CORESIGHT_SOURCE_ETM4X - bool "CoreSight Embedded Trace Macrocell 4.x driver" + tristate "CoreSight ETMv4.x / ETE driver" depends on ARM64 select CORESIGHT_LINKS_AND_SINKS select PID_IN_CONTEXTIDR help - This driver provides support for the ETM4.x tracer module, tracing the - instructions that a processor is executing. This is primarily useful - for instruction level tracing. Depending on the implemented version - data tracing may also be available. + This driver provides support for the CoreSight Embedded Trace Macrocell + version 4.x and the Embedded Trace Extensions (ETE). Both are CPU tracer + modules, tracing the instructions that a processor is executing. This is + primarily useful for instruction level tracing. + + To compile this driver as a module, choose M here: the + module will be called coresight-etm4x. + +config ETM4X_IMPDEF_FEATURE + bool "Control implementation defined overflow support in ETM 4.x driver" + depends on CORESIGHT_SOURCE_ETM4X + help + This control provides implementation define control for CoreSight + ETM 4.x tracer module that can't reduce commit rate automatically. + This avoids overflow between the ETM tracer module and the cpu core. config CORESIGHT_STM - bool "CoreSight System Trace Macrocell driver" + tristate "CoreSight System Trace Macrocell driver" depends on (ARM && !(CPU_32v3 || CPU_32v4 || CPU_32v4T)) || ARM64 select CORESIGHT_LINKS_AND_SINKS select STM @@ -96,6 +130,9 @@ config CORESIGHT_STM logging useful software events or data coming from various entities in the system, possibly running different OSs + To compile this driver as a module, choose M here: the + module will be called coresight-stm. + config CORESIGHT_CPU_DEBUG tristate "CoreSight CPU Debug driver" depends on ARM || ARM64 @@ -107,7 +144,61 @@ config CORESIGHT_CPU_DEBUG can quickly get to know program counter (PC), secure state, exception level, etc. Before use debugging functionality, platform needs to ensure the clock domain and power domain are enabled - properly, please refer Documentation/trace/coresight-cpu-debug.rst + properly, please refer Documentation/trace/coresight/coresight-cpu-debug.rst for detailed description and the example for usage. + To compile this driver as a module, choose M here: the + module will be called coresight-cpu-debug. + +config CORESIGHT_CPU_DEBUG_DEFAULT_ON + bool "Enable CoreSight CPU Debug by default" + depends on CORESIGHT_CPU_DEBUG + help + Say Y here to enable the CoreSight Debug panic-debug by default. This + can also be enabled via debugfs, but this ensures the debug feature + is enabled as early as possible. + + Has the same effect as setting coresight_cpu_debug.enable=1 on the + kernel command line. + + Say N if unsure. + +config CORESIGHT_CTI + tristate "CoreSight Cross Trigger Interface (CTI) driver" + depends on ARM || ARM64 + help + This driver provides support for CoreSight CTI and CTM components. + These provide hardware triggering events between CoreSight trace + source and sink components. These can be used to halt trace or + inject events into the trace stream. CTI also provides a software + control to trigger the same halt events. This can provide fast trace + halt compared to disabling sources and sinks normally in driver + software. + + To compile this driver as a module, choose M here: the + module will be called coresight-cti. + +config CORESIGHT_CTI_INTEGRATION_REGS + bool "Access CTI CoreSight Integration Registers" + depends on CORESIGHT_CTI + help + This option adds support for the CoreSight integration registers on + this device. The integration registers allow the exploration of the + CTI trigger connections between this and other devices.These + registers are not used in normal operation and can leave devices in + an inconsistent state. + +config CORESIGHT_TRBE + tristate "Trace Buffer Extension (TRBE) driver" + depends on ARM64 && CORESIGHT_SOURCE_ETM4X + help + This driver provides support for percpu Trace Buffer Extension (TRBE). + TRBE always needs to be used along with its corresponding percpu ETE + component. ETE generates trace data which is then captured with TRBE. + Unlike traditional sink devices, TRBE is a CPU feature accessible via + system registers. But its explicit dependency with trace unit (ETE) + requires it to be plugged in as a coresight sink device. + + To compile this driver as a module, choose M here: the module will be + called coresight-trbe. endif |