CONFIG_ARM64_ERRATUM_1188873: Cortex-A76: MRC read following MRRC read of specific Generic Timer in AArch32 might give incorrect result

General informations

The Linux kernel configuration item CONFIG_ARM64_ERRATUM_1188873:

• prompt: Cortex-A76: MRC read following MRRC read of specific Generic Timer in AArch32 might give incorrect result
• type: bool
• depends on: (none)
• defined in arch/arm64/Kconfig
• found in Linux kernels: 4.20, 5.0–5.1

Help text

This option adds work arounds for ARM Cortex-A76 erratum 1188873

Affected Cortex-A76 cores (r0p0, r1p0, r2p0) could cause register corruption when accessing the timer registers from AArch32 userspace.

If unsure, say Y.

Hardware

LKDDb

Raw data from LKDDb:

• (none)

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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