CONFIG_ARM_CCI400_PMU: support CCI-400

General informations

The Linux kernel configuration item CONFIG_ARM_CCI400_PMU has multiple definitions:

support CCI-400 found in drivers/perf/Kconfig

The configuration item CONFIG_ARM_CCI400_PMU:

• prompt: support CCI-400
• type: bool
• depends on: CONFIG_ARM_CCI_PMU
• defined in drivers/perf/Kconfig
• found in Linux kernels: 4.18–4.20, 5.0–5.19, 6.0–6.8, 6.9-rc+HEAD

Help text

CCI-400 provides 4 independent event counters counting events related to the connected slave/master interfaces, plus a cycle counter.

ARM CCI400 PMU support found in drivers/perf/Kconfig

The configuration item CONFIG_ARM_CCI400_PMU:

• prompt: ARM CCI400 PMU support
• type: bool
• depends on: ( CONFIG_ARM && CONFIG_CPU_V7 ) || CONFIG_ARM64
• defined in drivers/perf/Kconfig
• found in Linux kernels: 4.17

Help text

Support for PMU events monitoring on the ARM CCI-400 (cache coherent interconnect). CCI-400 supports counting events related to the connected slave/master interfaces.

ARM CCI400 PMU support found in drivers/bus/Kconfig

The configuration item CONFIG_ARM_CCI400_PMU:

• prompt: ARM CCI400 PMU support
• type: bool
• depends on: (( CONFIG_ARM && CONFIG_CPU_V7 ) || CONFIG_ARM64 ) && ( CONFIG_PERF_EVENTS )
• defined in drivers/bus/Kconfig
• found in Linux kernels: 4.1–4.16

Help text

Support for PMU events monitoring on the ARM CCI-400 (cache coherent interconnect). CCI-400 supports counting events related to the connected slave/master interfaces.

Hardware

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The data is retrived from:

• Linux kernel
• Linux Kernel Driver DataBase (LKDDb)

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