LXR linux/drivers/hwtracing/coresight/Kconfig

   1#
   2# Coresight configuration
   3#
   4menuconfig CORESIGHT
   5        bool "CoreSight Tracing Support"
   6        select ARM_AMBA
   7        select PERF_EVENTS
   8        help
   9          This framework provides a kernel interface for the CoreSight debug
  10          and trace drivers to register themselves with. It's intended to build
  11          a topological view of the CoreSight components based on a DT
  12          specification and configure the right series of components when a
  13          trace source gets enabled.
  14
  15if CORESIGHT
  16config CORESIGHT_LINKS_AND_SINKS
  17        bool "CoreSight Link and Sink drivers"
  18        help
  19          This enables support for CoreSight link and sink drivers that are
  20          responsible for transporting and collecting the trace data
  21          respectively.  Link and sinks are dynamically aggregated with a trace
  22          entity at run time to form a complete trace path.
  23
  24config CORESIGHT_LINK_AND_SINK_TMC
  25        bool "Coresight generic TMC driver"
  26        depends on CORESIGHT_LINKS_AND_SINKS
  27        help
  28          This enables support for the Trace Memory Controller driver.
  29          Depending on its configuration the device can act as a link (embedded
  30          trace router - ETR) or sink (embedded trace FIFO).  The driver
  31          complies with the generic implementation of the component without
  32          special enhancement or added features.
  33
  34config CORESIGHT_SINK_TPIU
  35        bool "Coresight generic TPIU driver"
  36        depends on CORESIGHT_LINKS_AND_SINKS
  37        help
  38          This enables support for the Trace Port Interface Unit driver,
  39          responsible for bridging the gap between the on-chip coresight
  40          components and a trace for bridging the gap between the on-chip
  41          coresight components and a trace port collection engine, typically
  42          connected to an external host for use case capturing more traces than
  43          the on-board coresight memory can handle.
  44
  45config CORESIGHT_SINK_ETBV10
  46        bool "Coresight ETBv1.0 driver"
  47        depends on CORESIGHT_LINKS_AND_SINKS
  48        help
  49          This enables support for the Embedded Trace Buffer version 1.0 driver
  50          that complies with the generic implementation of the component without
  51          special enhancement or added features.
  52
  53config CORESIGHT_SOURCE_ETM3X
  54        bool "CoreSight Embedded Trace Macrocell 3.x driver"
  55        depends on !ARM64
  56        select CORESIGHT_LINKS_AND_SINKS
  57        help
  58          This driver provides support for processor ETM3.x and PTM1.x modules,
  59          which allows tracing the instructions that a processor is executing
  60          This is primarily useful for instruction level tracing.  Depending
  61          the ETM version data tracing may also be available.
  62
  63config CORESIGHT_SOURCE_ETM4X
  64        bool "CoreSight Embedded Trace Macrocell 4.x driver"
  65        depends on ARM64
  66        select CORESIGHT_LINKS_AND_SINKS
  67        help
  68          This driver provides support for the ETM4.x tracer module, tracing the
  69          instructions that a processor is executing. This is primarily useful
  70          for instruction level tracing. Depending on the implemented version
  71          data tracing may also be available.
  72
  73config CORESIGHT_DYNAMIC_REPLICATOR
  74        bool "CoreSight Programmable Replicator driver"
  75        depends on CORESIGHT_LINKS_AND_SINKS
  76        help
  77          This enables support for dynamic CoreSight replicator link driver.
  78          The programmable ATB replicator allows independent filtering of the
  79          trace data based on the traceid.
  80
  81config CORESIGHT_STM
  82        bool "CoreSight System Trace Macrocell driver"
  83        depends on (ARM && !(CPU_32v3 || CPU_32v4 || CPU_32v4T)) || ARM64
  84        select CORESIGHT_LINKS_AND_SINKS
  85        select STM
  86        help
  87          This driver provides support for hardware assisted software
  88          instrumentation based tracing. This is primarily used for
  89          logging useful software events or data coming from various entities
  90          in the system, possibly running different OSs
  91
  92config CORESIGHT_CPU_DEBUG
  93        tristate "CoreSight CPU Debug driver"
  94        depends on ARM || ARM64
  95        depends on DEBUG_FS
  96        help
  97          This driver provides support for coresight debugging module. This
  98          is primarily used to dump sample-based profiling registers when
  99          system triggers panic, the driver will parse context registers so
 100          can quickly get to know program counter (PC), secure state,
 101          exception level, etc. Before use debugging functionality, platform
 102          needs to ensure the clock domain and power domain are enabled
 103          properly, please refer Documentation/trace/coresight-cpu-debug.txt
 104          for detailed description and the example for usage.
 105
 106endif
 107