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-rw-r--r--Documentation/arm64/legacy_instructions.txt5
1 files changed, 5 insertions, 0 deletions
diff --git a/Documentation/arm64/legacy_instructions.txt b/Documentation/arm64/legacy_instructions.txt
index 5ab58614b7ed..a3b3da2ec6ed 100644
--- a/Documentation/arm64/legacy_instructions.txt
+++ b/Documentation/arm64/legacy_instructions.txt
@@ -38,3 +38,8 @@ Supported legacy instructions
Node: /proc/sys/abi/swp
Status: Obsolete
Default: Undef (0)
+
+* CP15 Barriers
+Node: /proc/sys/abi/cp15_barrier
+Status: Deprecated
+Default: Emulate (1)