tree c027995bd640eda1c72607dd5c2e468164b9a6d2
parent 9131eb8f28e37e6c23229d6cdc1c36576372dd25
author johpow01 <john.powell@arm.com> 1602101281 -0500
committer johpow01 <john.powell@arm.com> 1610567658 -0600

Workaround for Cortex A78 erratum 1951500

Cortex A78 erratum 1951500 is a Cat B erratum that applies to revisions
r0p0, r1p0, and r1p1.  The workaround is to insert a DMB ST before
acquire atomic instructions without release semantics.  This workaround
works on revisions r1p0 and r1p1, in r0p0 there is no workaround.

SDEN can be found here:
https://documentation-service.arm.com/static/5fb66157ca04df4095c1cc2e

Signed-off-by: John Powell <john.powell@arm.com>
Change-Id: I47610cee75af6a127ea65edc4d5cffc7e6a2d0a3