Litmus core: add generic clustering support

Inspired by the existing C-EDF code, this generic version will build
clusters of CPUs based on a given cache level.

1 files changed, 22 insertions, 0 deletions

diff --git a/include/litmus/clustered.h b/include/litmus/clustered.h
index cad12467b4ee..0c18dcb15e6c 100644
--- a/include/litmus/clustered.h
+++ b/include/litmus/clustered.h
@@ -19,4 +19,26 @@ const char* cache_level_name(enum cache_level level);
 struct proc_dir_entry* create_cluster_file(struct proc_dir_entry* parent,
                                            enum cache_level* level);
 
+
+
+struct scheduling_cluster {
+        unsigned int id;
+        /* list of CPUs that are part of this cluster */
+        struct list_head cpus;
+};
+
+struct cluster_cpu {
+        unsigned int id; /* which CPU is this? */
+        struct list_head cluster_list; /* List of the CPUs in this cluster. */
+        struct scheduling_cluster* cluster; /* The cluster that this CPU belongs to. */
+};
+
+int get_cluster_size(enum cache_level level);
+
+int assign_cpus_to_clusters(enum cache_level level,
+                            struct scheduling_cluster* clusters[],
+                            unsigned int num_clusters,
+                            struct cluster_cpu* cpus[],
+                            unsigned int num_cpus);
+
 #endif