CONFIG_ARM_ERRATA_751472: ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation

General informations

The Linux kernel configuration item CONFIG_ARM_ERRATA_751472:

• prompt: ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation
• type: bool
• depends on: ( CONFIG_CPU_V7 ) && (! CONFIG_ARCH_MULTIPLATFORM )
• defined in arch/arm/Kconfig
• found in Linux kernels: 2.6.38–2.6.39, 3.0–3.19, 4.0–4.20, 5.0–5.4, 5.5-rc+HEAD

Help text

This option enables the workaround for the 751472 Cortex-A9 (prior to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the completion of a following broadcasted operation if the second operation is received by a CPU before the ICIALLUIS has completed, potentially leading to corrupted entries in the cache or TLB.

Hardware

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The data is retrived from:

• Linux kernel
• Linux Kernel Driver DataBase (LKDDb)

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