tree a34518103d50c71152abd6ae85317e3bdfb2ebe3
parent 9b5d75b17f131aa80930128b247c63d4ba177469
author Sona Mathew <sonarebecca.mathew@arm.com> 1712352427 -0500
committer Varun Wadekar <vwadekar@nvidia.com> 1715078712 +0000

fix(cpus): workaround for Cortex-X4 erratum 2763018

Cortex-X4 erratum 2763018 is a Cat B erratum that is present
in revisions r0p0, r0p1 and is fixed in r0p2.

The workaround is to set bit[47] of CPUACTLR3_EL1 register.
Setting this chicken bit might have a small impact on power
and negligible impact on performance.

SDEN documentation:
https://developer.arm.com/documentation/SDEN2432808/latest

Change-Id: Ia188e08c2eb2952923ec72e2a56efdeea836fe1e
Signed-off-by: Sona Mathew <sonarebecca.mathew@arm.com>
(cherry picked from commit 47312115dea140dd7ba26cf0512856a41f3e3067)