commit fe405d010aa507853c1368fe305fe2ae4868dd54
author Sona Mathew <SonaRebecca.Mathew@arm.com> Wed Jan 11 17:04:24 2023 -0600
committer Sona Mathew <SonaRebecca.Mathew@arm.com> Thu Jan 19 12:14:39 2023 -0600
tree 7e4018fb3ed14bb9533851b1066dd9823cb2d6bd
parent f13c1a9684f3c11849b3c1ef5a47e314c9fbf6c0

fix(cpus): workaround for Neoverse V1 errata 2779461

Neoverse V1 erratum 2779461 is a Cat B erratum that applies to
all revisions <=r1p2 and is still open.

The workaround sets CPUACTLR3_EL1[47] bit to 1. Setting this
bit might have a small impact on power and negligible impact
on performance.

SDEN documentation:https://developer.arm.com/documentation/SDEN1401781/latest

Change-Id: I367cda1779684638063d7292fda20ca6734e6f10
Signed-off-by: Sona Mathew <SonaRebecca.Mathew@arm.com>

include/lib/cpus/aarch64/neoverse_v1.h

diff --git a/include/lib/cpus/aarch64/neoverse_v1.h b/include/lib/cpus/aarch64/neoverse_v1.h
index 9c7e967..4c10484 100644
--- a/include/lib/cpus/aarch64/neoverse_v1.h
+++ b/include/lib/cpus/aarch64/neoverse_v1.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019-2022, ARM Limited. All rights reserved.
+ * Copyright (c) 2019-2023, ARM Limited. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -41,4 +41,6 @@
 #define NEOVERSE_V1_ACTLR2_EL1_BIT_28				(ULL(1) << 28)
 #define NEOVERSE_V1_ACTLR2_EL1_BIT_40				(ULL(1) << 40)
 
+#define NEOVERSE_V1_ACTLR3_EL1					S3_0_C15_C1_2
+
 #endif /* NEOVERSE_V1_H */