2 files changed, 35 insertions, 0 deletions
diff --git a/Documentation/features/arch-support.txt b/Documentation/features/arch-support.txt
new file mode 100644
index 000000000000..d22a1095e661
--- /dev/null
+++ b/Documentation/features/arch-support.txt
@@ -0,0 +1,11 @@
+
+For generic kernel features that need architecture support, the
+arch-support.txt file in each feature directory shows the arch
+support matrix, for all upstream Linux architectures.
+
+The meaning of entries in the tables is:
+
+    | ok |  # feature supported by the architecture
+    |TODO|  # feature not yet supported by the architecture
+    | .. |  # feature cannot be supported by the hardware
+
diff --git a/Documentation/features/list-arch.sh b/Documentation/features/list-arch.sh
new file mode 100755
index 000000000000..6065124a072f
--- /dev/null
+++ b/Documentation/features/list-arch.sh
@@ -0,0 +1,24 @@
+#
+# Small script that visualizes the kernel feature support status
+# of an architecture.
+#
+# (If no arguments are given then it will print the host architecture's status.)
+#
+
+ARCH=${1:-$(arch | sed 's/x86_64/x86/' | sed 's/i386/x86/')}
+
+cd $(dirname $0)
+echo "#"
+echo "# Kernel feature support matrix of the '$ARCH' architecture:"
+echo "#"
+
+for F in */*/arch-support.txt; do
+  SUBSYS=$(echo $F | cut -d/ -f1)
+  N=$(grep -h "^# Feature name:"        $F | cut -c25-)
+  C=$(grep -h "^#         Kconfig:"     $F | cut -c25-)
+  D=$(grep -h "^#         description:" $F | cut -c25-)
+  S=$(grep -hw $ARCH $F | cut -d\| -f3)
+
+  printf "%10s/%-22s:%s| %35s # %s\n" "$SUBSYS" "$N" "$S" "$C" "$D"
+done
+