155 lines
5.2 KiB
Plaintext
155 lines
5.2 KiB
Plaintext
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menuconfig CORESIGHT
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bool "CoreSight Tracing Support"
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help
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CoreSight components are compliant with the ARM CoreSight
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architecture specification and can be connected in various
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topologies to suite a particular SoCs tracing needs. These trace
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components can generally be classified as sources, links and
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sinks. Trace data produced by one or more sources flows through
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the intermediate links connecting the source to the currently
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selected sink.
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This framework provides an interface for the CoreSight debug and
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trace drivers to register themselves with. It's intended to build
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up a topological view of the CoreSight components and configure
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the right series of components on user input via sysfs. It also
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provides status information to user space applications through
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sysfs interface.
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If unsure, say 'N' here to avoid potential power, performance and
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memory penalty.
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if CORESIGHT
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config HAVE_CORESIGHT_SINK
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bool
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config CORESIGHT_CTI
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bool "CoreSight Cross Trigger Interface driver"
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help
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This driver provides support for Cross Trigger Interface that is
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used to input or output i.e. pass cross trigger events from one
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hardware component to another. It can also be used to pass
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software generated events.
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config CORESIGHT_CSR
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bool "CoreSight Slave Register driver"
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help
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This driver provides support for CoreSight Slave Register block
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that hosts miscellaneous configuration registers.
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config CORESIGHT_TMC
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bool "CoreSight Trace Memory Controller driver"
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select CORESIGHT_CTI
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select CORESIGHT_CSR
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select HAVE_CORESIGHT_SINK
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help
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This driver provides support for Trace Memory Controller which
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can be configured as either an ETB (Embedded Trace Buffer),
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ETR (Embedded Trace Router) or ETF (Embedded Trace Fifo). It acts
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as sink when configured as ETB, ETR or ETF in circular buffer mode
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whereas it is a link when configured as ETF in hardware fifo mode.
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ETB collects trace data in a circular buffer whereas ETR can be
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used to route trace data to memory allocated in RAM. ETF in
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circular buffer mode is like an ETB whereas in hardware fifo mode
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it is a fifo link.
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config CORESIGHT_TPIU
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bool "CoreSight Trace Port Interface Unit driver"
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select HAVE_CORESIGHT_SINK
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help
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This driver provides support for Trace Port Interface Unit which
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acts as a conduit for offchip trace collection.
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config CORESIGHT_ETB
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bool "CoreSight Embedded Trace Buffer driver"
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select HAVE_CORESIGHT_SINK
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help
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This driver provides support for the legacy Embedded Trace Buffer
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which is a circular buffer.
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if HAVE_CORESIGHT_SINK
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config CORESIGHT_FUNNEL
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bool "CoreSight Funnel driver"
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help
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This driver provides support for Funnel which is a link that
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typically has multiple input ports and a single output port. Input
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trace data streams from the input ports are interleaved into a
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single output trace data stream coming out of the output port.
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config CORESIGHT_REPLICATOR
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bool "CoreSight Replicator driver"
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help
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This driver provides support for Replicator that typically has
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a single input port and two output ports. Single trace data
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stream on the input port is replicated to produce two identical
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trace data output streams coming out of the two output ports.
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config CORESIGHT_STM
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bool "CoreSight System Trace Macrocell driver"
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help
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This driver provides support for hardware assisted software
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instrumentation based tracing. This is primarily useful for
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logging useful software events or data.
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config CORESIGHT_STM_DEFAULT_ENABLE
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bool "Turn on STM tracing by default"
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depends on CORESIGHT_STM
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help
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Turns on CoreSight STM tracing (hardware assisted software
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instrumentation based tracing) by default. Otherwise, tracing is
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disabled by default but can be enabled via sysfs.
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If unsure, say 'N' here to avoid potential power and performance
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penalty.
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config CORESIGHT_HWEVENT
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bool "CoreSight Hardware Event driver"
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depends on CORESIGHT_STM
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select CORESIGHT_CSR
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help
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This driver provides support for monitoring and tracing CoreSight
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Hardware Event across STM interface. It configures Coresight
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Hardware Event mux control registers to select hardware events
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based on user input.
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config CORESIGHT_ETM
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bool "CoreSight Embedded Trace Macrocell driver"
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help
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This driver provides support for processor tracing which allows
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tracing the instructions that the processor is executing. This is
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primarily useful for instruction level tracing.
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config CORESIGHT_ETM_DEFAULT_ENABLE
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bool "Turn on ETM tracing by default"
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depends on CORESIGHT_ETM
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help
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Turns on CoreSight ETM tracing (processor tracing) by default.
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Otherwise, tracing is disabled by default but can be enabled via
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sysfs.
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If unsure, say 'N' here to avoid potential power and performance
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penalty.
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config CORESIGHT_ETM_PCSAVE_DEFAULT_ENABLE
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bool "Turn on PC saving by default"
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depends on CORESIGHT_ETM
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help
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Turns on program counter saving on reset by default. Otherwise,
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PC saving is disabled by default but can be enabled via sysfs.
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If unsure, say 'N' here to avoid potential power penalty.
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endif
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config CORESIGHT_EVENT
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tristate "CoreSight Event driver"
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help
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This driver provides support for registering with various events
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and performing CoreSight actions like aborting trace on their
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occurrence.
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endif
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