255 lines
9.1 KiB
Plaintext
255 lines
9.1 KiB
Plaintext
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 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. These events can be controlled by using module
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parameters.
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config HAVE_CORESIGHT_SINK
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bool
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config CORESIGHT_FUSE
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bool "CoreSight Fuse driver"
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help
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This driver provides support for CoreSight Fuse state checks that
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other CoreSight drivers can query to determine existence of
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Hardware functionality they support. Drivers can then take necessary
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actions like failing the probe if the Hardware they manage is
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functionally disabled.
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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_CTI_SAVE_DISABLE
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bool "Turn off CTI save and restore"
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help
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Turns off CoreSight CTI save and restore support for cpu CTIs. This
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avoids voting for the clocks during probe as well as the associated
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save and restore latency at the cost of breaking cpu CTI support on
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targets where cpu CTIs have to be preserved across power collapse.
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If unsure, say 'N' here to avoid breaking cpu CTI support.
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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_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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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_TPDA
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bool "CoreSight Trace, Profiling & Diagnostics Aggregator driver"
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help
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This driver provides support for configuring aggregator. This is
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primarily useful for pulling the data sets from one or more
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attached monitors and pushing the resultant data out. Multiple
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monitors are connected on different input ports of TPDA.
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config CORESIGHT_TPDM
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bool "CoreSight Trace, Profiling & Diagnostics Monitor driver"
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help
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This driver provides support for configuring monitor. Monitors are
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primarily responsible for data set collection and support the
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ability to collect any permutation of data set types. Monitors are
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also responsible for interaction with system cross triggering.
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config CORESIGHT_TPDM_DEFAULT_ENABLE
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bool "Turn on TPDM tracing by default"
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depends on CORESIGHT_TPDM
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help
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Turns on CoreSight TPDM tracing for different data set types by
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default. Otherwise, tracing is disabled by default but can be
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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_DBGUI
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bool "CoreSight DebugUI driver"
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help
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This driver provides support for DebugUI that helps to capture
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the value at a specified address. It allows configuring DebugUI
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to select specified address and trigger mode based on user
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input.
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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_RESET
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bool "Reset ETM by default"
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depends on CORESIGHT_ETM
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help
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Reset CoreSight ETM tracing (processor tracing) parameters by
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default. This configures ETM parameters to reset values instead
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of preconfigured values on bootup. Otherwise, ETM parameters take
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preconfigured values by default but these can be reset via sysfs.
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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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config CORESIGHT_ETMV4
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bool "CoreSight Embedded Trace Macrocell v4 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 on ARMv8
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architecture. This is primarily useful for instruction level
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tracing.
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config CORESIGHT_ETMV4_DEFAULT_RESET
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bool "Reset ETMV4 by default"
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depends on CORESIGHT_ETMV4
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help
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Reset CoreSight ETMV4 tracing (processor tracing) parameters by
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default. This configures ETMV4 parameters to reset values instead
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of preconfigured values on bootup. Otherwise, ETMV4 parameters take
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preconfigured values by default but these can be reset via sysfs.
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config CORESIGHT_ETMV4_DEFAULT_ENABLE
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bool "Turn on ETMV4 tracing by default"
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depends on CORESIGHT_ETMV4
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help
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Turns on CoreSight ETMV4 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_REMOTE_ETM
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bool "Remote processor ETM trace support"
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help
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Enables support for ETM trace collection on remote processor using
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CoreSight framework. Enabling this will allow turning on ETM
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tracing on remote processor via sysfs by configuring the required
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CoreSight components.
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endif
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config CORESIGHT_QPDI
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bool "CoreSight PMIC debug interface support"
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help
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This driver provides support for controlling the PMIC debug interface
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feature. When enabled via sysfs it allows disagnostic access to the
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PMIC. Similarly this debug feature can be disabled via sysfs which
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prevents debug dongle detection.
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endif
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