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-rw-r--r--Documentation/admin-guide/cputopology.rst3
1 files changed, 3 insertions, 0 deletions
diff --git a/Documentation/admin-guide/cputopology.rst b/Documentation/admin-guide/cputopology.rst
index 6b62e182baf4..c68d07533c45 100644
--- a/Documentation/admin-guide/cputopology.rst
+++ b/Documentation/admin-guide/cputopology.rst
@@ -11,6 +11,9 @@ Architecture-neutral, drivers/base/topology.c, exports these attributes.
However, the book and drawer related sysfs files will only be created if
CONFIG_SCHED_BOOK and CONFIG_SCHED_DRAWER are selected, respectively.
+The die hierarchy related sysfs files will only be created if an architecture
+provides the related macros as described below.
+
CONFIG_SCHED_BOOK and CONFIG_SCHED_DRAWER are currently only used on s390,
where they reflect the cpu and cache hierarchy.