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[redhat] New configs in drivers/hwtracing

CKI Gitlab requested to merge configs/2021-05-02/drivers/hwtracing into os-build

Hi,

As part of the ongoing rebase effort, the following configuration options need to be reviewed.

As a reminder, the ARK configuration flow involves moving unreviewed configuration options from the pending directory to the ark directory. In the diff below, options are removed from the pending directory and added to the ark hierarchy. The final options that need to be ACKed are the files that are being added to the ark hierarchy.

If the value for a file that is added should be changed, please reply with a better option.

CONFIG_CORESIGHT_TRBE:

This driver provides support for percpu Trace Buffer Extension (TRBE). TRBE always needs to be used along with it's corresponding percpu ETE component. ETE generates trace data which is then captured with TRBE. Unlike traditional sink devices, TRBE is a CPU feature accessible via system registers. But it's explicit dependency with trace unit (ETE) requires it to be plugged in as a coresight sink device.

To compile this driver as a module, choose M here: the module will be called coresight-trbe. Symbol: CORESIGHT_TRBE [=n] Type : tristate Defined at drivers/hwtracing/coresight/Kconfig:177 Prompt: Trace Buffer Extension (TRBE) driver Depends on: CORESIGHT [=m] && ARM64 [=y] && CORESIGHT_SOURCE_ETM4X [=m] Location: -> Kernel hacking -> arm64 Debugging -> CoreSight Tracing Support (CORESIGHT [=m])


Signed-off-by: Fedora Kernel Team kernel-team@fedoraproject.org

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