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Commit 28c32376 authored by Mathieu Poirier's avatar Mathieu Poirier
Browse files

coresight: Adding coresight support for arm64 architecture 



Most CoreSight blocks are 64-bit ready.  As such move configuration
entries from "arch/arm/Kconfig.config" to the driver's subdirectory
and source the newly created Kconfig from architecture specific
Kconfig.debug files.

Signed-off-by: default avatarMathieu Poirier <mathieu.poirier@linaro.org>
Acked-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit 3288731e628e0269c20d86e43b647d0b92f2b3fc)
Signed-off-by: default avatarMathieu Poirier <mathieu.poirier@linaro.org>

Conflicts:
	arch/arm64/Kconfig.debug
parent 97a1611b

arch/arm/Kconfig.debug

+1 −54
Original line number Diff line number Diff line
@@ -1323,59 +1323,6 @@ config DEBUG_SET_MODULE_RONX 
	  against certain classes of kernel exploits.

	  If in doubt, say "N".



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_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

	  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"

	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.

endif

source "drivers/coresight/Kconfig"



endmenu

arch/arm64/Kconfig.debug

+2 −0
Original line number Diff line number Diff line
@@ -54,4 +54,6 @@ config DEBUG_SET_MODULE_RONX 
          against certain classes of kernel exploits.

          If in doubt, say "N".



source "drivers/coresight/Kconfig"



endmenu

drivers/coresight/Kconfig

0 → 100644
+61 −0
Original line number Diff line number Diff line 
#

# 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_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.

endif