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#
# Coresight configuration
#
menuconfig CORESIGHT
bool "CoreSight Tracing Support"
select ARM_AMBA
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 serie of components when a
trace source gets enabled.
if CORESIGHT
config CORESIGHT_EVENT
tristate "CoreSight Event driver"
help
This driver provides support for registering with various events
and performing CoreSight actions like aborting trace on their
occurrence. These events can be controlled by using module
parameters.
config CORESIGHT_CSR
bool "CoreSight Slave Register driver"
help
This driver provides support for CoreSight Slave Register block
that hosts miscellaneous configuration registers.
Those configuration registers can be used to control, various
coresight configurations.
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
select CORESIGHT_CSR
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"
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_REMOTE_ETM
bool "Remote processor ETM trace support"
depends on MSM_QMI_INTERFACE
help
Enables support for ETM trace collection on remote processor using
CoreSight framework. Enabling this will allow turning on ETM
tracing on remote processor via sysfs by configuring the required
CoreSight components.
config CORESIGHT_REMOTE_ETM_DEFAULT_ENABLE
int "default enable bits for Remote processor ETM"
depends on CORESIGHT_REMOTE_ETM
help
Support for enabling separated Remote processor ETM tracing. Depends
on if instance id bit is set.
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"
select CORESIGHT_LINKS_AND_SINKS
help
This driver provides support for hardware assisted software
instrumentation based tracing. This is primarily useful for
logging useful software events or data.
config CORESIGHT_HWEVENT
bool "CoreSight Hardware Event driver"
depends on CORESIGHT_STM
select CORESIGHT_CSR
help
This driver provides support for monitoring and tracing CoreSight
Hardware Event across STM interface. It configures Coresight
Hardware Event mux control registers to select hardware events
based on user input.
config CORESIGHT_CTI
bool "CoreSight Cross Trigger Interface driver"
help
This driver provides support for Cross Trigger Interface that is
used to input or output i.e. pass cross trigger events from one
hardware component to another. It can also be used to pass
software generated events.
config CORESIGHT_CTI_SAVE_DISABLE
bool "Turn off CTI save and restore"
depends on CORESIGHT_CTI
help
Turns off CoreSight CTI save and restore support for cpu CTIs. This
avoids voting for the clocks during probe as well as the associated
save and restore latency at the cost of breaking cpu CTI support on
targets where cpu CTIs have to be preserved across power collapse.
If unsure, say 'N' here to avoid breaking cpu CTI support.
config CORESIGHT_TPDA
bool "CoreSight Trace, Profiling & Diagnostics Aggregator driver"
help
This driver provides support for configuring aggregator. This is
primarily useful for pulling the data sets from one or more
attached monitors and pushing the resultant data out. Multiple
monitors are connected on different input ports of TPDA.
config CORESIGHT_TPDM
bool "CoreSight Trace, Profiling & Diagnostics Monitor driver"
help
This driver provides support for configuring monitor. Monitors are
primarily responsible for data set collection and support the
ability to collect any permutation of data set types. Monitors are
also responsible for interaction with system cross triggering.
config CORESIGHT_TPDM_DEFAULT_ENABLE
bool "Turn on TPDM tracing by default"
depends on CORESIGHT_TPDM
help
Turns on CoreSight TPDM tracing for different data set types by
default. Otherwise, tracing is disabled by default but can be
enabled via sysfs.
If unsure, say 'N' here to avoid potential power and performance
penalty.
config CORESIGHT_QPDI
bool "CoreSight PMIC debug interface support"
help
This driver provides support for controlling the PMIC debug interface
feature. When enabled via sysfs it allows disagnostic access to the
PMIC. Similarly this debug feature can be disabled via sysfs which
prevents debug dongle detection.
config CORESIGHT_SOURCE_DUMMY
bool "Dummy source support"
help
Enables support for dummy source devices. Dummy source driver can be
used for CoreSight sources that are owned and configured by some other
subsystem and use Linux drivers to configure rest of trace path.
endif
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