tree 34b7cd6fcba1faf7edfd796ab3c4f18ec7a783b3
parent 0ed87212a9c1d21c7fb116bb606c64381d6b897b
author Varun Wadekar <vwadekar@nvidia.com> 1627378349 -0700
committer Varun Wadekar <vwadekar@nvidia.com> 1629364509 -0700

feat(cpus): workaround for Cortex A78 AE erratum 1941500

Cortex A78 AE erratum 1941500 is a Cat B erratum that applies
to revisions <= r0p1. It is still open.

This erratum is avoided by by setting CPUECTLR_EL1[8] to 1.
There is a small performance cost (<0.5%) for setting this
bit.

SDEN is available at https://developer.arm.com/documentation/SDEN1707912/0900

Change-Id: I2d72666468b146714a0340ba114ccf0f5165b39c
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>