# # Coresight configuration # menuconfig CORESIGHT bool "CoreSight Tracing Support" select ARM_AMBA select PERF_EVENTS help This framework provides a kernel interface for the CoreSight debug and trace drivers to register themselves with. It's intended to build a topological view of the CoreSight components based on a DT specification and configure the right series of components when a trace source gets enabled. if CORESIGHT config CORESIGHT_LINKS_AND_SINKS bool "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. config CORESIGHT_LINK_AND_SINK_TMC bool "Coresight generic TMC driver" depends on CORESIGHT_LINKS_AND_SINKS help This enables support for the Trace Memory Controller driver. Depending on its configuration the device can act as a link (embedded trace router - ETR) or sink (embedded trace FIFO). The driver complies with the generic implementation of the component without special enhancement or added features. config CORESIGHT_SINK_TPIU bool "Coresight generic TPIU driver" depends on CORESIGHT_LINKS_AND_SINKS help This enables support for the Trace Port Interface Unit driver, responsible for bridging the gap between the on-chip coresight components and a trace for bridging the gap between the on-chip coresight components and a trace port collection engine, typically connected to an external host for use case capturing more traces than the on-board coresight memory can handle. config CORESIGHT_SINK_ETBV10 bool "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. config CORESIGHT_SOURCE_ETM3X bool "CoreSight Embedded Trace Macrocell 3.x driver" depends on !ARM64 select CORESIGHT_LINKS_AND_SINKS help This driver provides support for processor ETM3.x and PTM1.x modules, which allows tracing the instructions that a processor is executing This is primarily useful for instruction level tracing. Depending the ETM version data tracing may also be available. config CORESIGHT_SOURCE_ETM4X bool "CoreSight Embedded Trace Macrocell 4.x driver" depends on ARM64 select CORESIGHT_LINKS_AND_SINKS 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. config CORESIGHT_QCOM_REPLICATOR bool "Qualcomm CoreSight Replicator driver" depends on CORESIGHT_LINKS_AND_SINKS help This enables support for Qualcomm CoreSight link driver. The programmable ATB replicator sends the ATB trace stream from the ETB/ETF to the TPIUi and ETR. config CORESIGHT_STM bool "CoreSight System Trace Macrocell driver" depends on (ARM && !(CPU_32v3 || CPU_32v4 || CPU_32v4T)) || ARM64 select CORESIGHT_LINKS_AND_SINKS select STM help This driver provides support for hardware assisted software instrumentation based tracing. This is primarily used for logging useful software events or data coming from various entities in the system, possibly running different OSs endif