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Message-Id: <1425078294-13059-4-git-send-email-mathieu.poirier@linaro.org> Date: Fri, 27 Feb 2015 16:04:52 -0700 From: Mathieu Poirier <mathieu.poirier@...aro.org> To: gregkh@...uxfoundation.org Cc: linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, zhang.chunyan@...aro.org, kaixu.xia@...aro.org Subject: [PATCH 3/5] 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: Mathieu Poirier <mathieu.poirier@...aro.org> Acked-by: Catalin Marinas <catalin.marinas@....com> --- arch/arm/Kconfig.debug | 55 +----------------------------------------- arch/arm64/Kconfig.debug | 2 ++ drivers/coresight/Kconfig | 61 +++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 64 insertions(+), 54 deletions(-) create mode 100644 drivers/coresight/Kconfig diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug index 970de7518341..8d14ad4e1db0 100644 --- a/arch/arm/Kconfig.debug +++ b/arch/arm/Kconfig.debug @@ -1610,59 +1610,6 @@ 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. +source "drivers/coresight/Kconfig" -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 endmenu diff --git a/arch/arm64/Kconfig.debug b/arch/arm64/Kconfig.debug index 4a8741073c90..5b2ffd8e6cdb 100644 --- a/arch/arm64/Kconfig.debug +++ b/arch/arm64/Kconfig.debug @@ -89,4 +89,6 @@ config DEBUG_ALIGN_RODATA If in doubt, say N +source "drivers/coresight/Kconfig" + endmenu diff --git a/drivers/coresight/Kconfig b/drivers/coresight/Kconfig new file mode 100644 index 000000000000..fc1f1ae7a49d --- /dev/null +++ b/drivers/coresight/Kconfig @@ -0,0 +1,61 @@ +# +# 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 -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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