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diff --git a/Documentation/powerpc/dawr-power9.rst b/Documentation/powerpc/dawr-power9.rst
index e55ac6a24b97..310f2e0cea81 100644
--- a/Documentation/powerpc/dawr-power9.rst
+++ b/Documentation/powerpc/dawr-power9.rst
@@ -2,15 +2,23 @@
DAWR issues on POWER9
=====================
-On POWER9 the Data Address Watchpoint Register (DAWR) can cause a checkstop
-if it points to cache inhibited (CI) memory. Currently Linux has no way to
-distinguish CI memory when configuring the DAWR, so (for now) the DAWR is
-disabled by this commit::
-
- commit 9654153158d3e0684a1bdb76dbababdb7111d5a0
- Author: Michael Neuling <mikey@neuling.org>
- Date: Tue Mar 27 15:37:24 2018 +1100
- powerpc: Disable DAWR in the base POWER9 CPU features
+On older POWER9 processors, the Data Address Watchpoint Register (DAWR) can
+cause a checkstop if it points to cache inhibited (CI) memory. Currently Linux
+has no way to distinguish CI memory when configuring the DAWR, so on affected
+systems, the DAWR is disabled.
+
+Affected processor revisions
+============================
+
+This issue is only present on processors prior to v2.3. The revision can be
+found in /proc/cpuinfo::
+
+ processor : 0
+ cpu : POWER9, altivec supported
+ clock : 3800.000000MHz
+ revision : 2.3 (pvr 004e 1203)
+
+On a system with the issue, the DAWR is disabled as detailed below.
Technical Details:
==================