tree 3b61d490bb8f7e4190fd8fd5c50a2ba4b3fe6d2b
parent c41c6c89fa9420371ac11ed9e1e142b38494338b
author Sona Mathew <sonarebecca.mathew@arm.com> 1712352427 -0500
committer Sona Mathew <sonarebecca.mathew@arm.com> 1713903255 -0500

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>