Litmus core: extract userspace interface from C-EDF

Make the cluster size configuration in C-EDF generic so that it can be
used by other clustered schedulers.

1 files changed, 22 insertions, 0 deletions

diff --git a/include/litmus/clustered.h b/include/litmus/clustered.h
new file mode 100644
index 000000000000..cad12467b4ee
--- /dev/null
+++ b/include/litmus/clustered.h
@@ -0,0 +1,22 @@
+#ifndef CLUSTERED_H
+#define CLUSTERED_H
+
+/* Which cache level should be used to group CPUs into clusters?
+ * GLOBAL_CLUSTER means that all CPUs form a single cluster (just like under
+ * global scheduling).
+ */
+enum cache_level {
+        GLOBAL_CLUSTER = 0,
+        L1_CLUSTER     = 1,
+        L2_CLUSTER     = 2,
+        L3_CLUSTER     = 3
+};
+
+int parse_cache_level(const char *str, enum cache_level *level);
+const char* cache_level_name(enum cache_level level);
+
+/* expose a cache level in a /proc dir */
+struct proc_dir_entry* create_cluster_file(struct proc_dir_entry* parent,
+                                           enum cache_level* level);
+
+#endif