CONFIG_CORESIGHT_CPU_DEBUG: CoreSight CPU Debug driver

General informations

The Linux kernel configuration item CONFIG_CORESIGHT_CPU_DEBUG:

• prompt: CoreSight CPU Debug driver
• type: tristate
• depends on: ( CONFIG_ARM || CONFIG_ARM64 ) && ( CONFIG_DEBUG_FS )
• defined in drivers/hwtracing/coresight/Kconfig
• found in Linux kernels: 4.13–4.20, 5.0–5.19, 6.0–6.12, 6.13-rc+HEAD
• modules built: coresight-cpu-debug

Help text

This driver provides support for coresight debugging module. This is primarily used to dump sample-based profiling registers when system triggers panic, the driver will parse context registers so can quickly get to know program counter (PC), secure state, exception level, etc. Before use debugging functionality, platform needs to ensure the clock domain and power domain are enabled properly, please refer Documentation/trace/coresight/coresight-cpu-debug.rst for detailed description and the example for usage.

To compile this driver as a module, choose M here: the module will be called coresight-cpu-debug.

Hardware

LKDDb

Raw data from LKDDb:

• lkddb module coresight-cpu-debug CONFIG_CORESIGHT_CPU_DEBUG : drivers/hwtracing/coresight/Kconfig : "CoreSight CPU Debug driver" # in 4.13–4.20, 5.0–5.19, 6.0–6.12, 6.13-rc+HEAD
• lkddb platform "coresight-debug-platform" : CONFIG_CORESIGHT CONFIG_CORESIGHT_CPU_DEBUG : drivers/hwtracing/coresight/coresight-cpu-debug.c # in 6.10–6.12, 6.13-rc+HEAD

Sources

This page is automaticly generated with free (libre, open) software lkddb(see lkddb-sources).

The data is retrived from:

• Linux kernel
• Linux Kernel Driver DataBase (LKDDb)

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