1 files changed, 63 insertions, 0 deletions

diff --git a/include/litmus/litmus_proc.h b/include/litmus/litmus_proc.h
new file mode 100644
index 000000000000..a5db24c03ec0
--- /dev/null
+++ b/include/litmus/litmus_proc.h
@@ -0,0 +1,63 @@
+#include <litmus/sched_plugin.h>
+#include <linux/proc_fs.h>
+
+int __init init_litmus_proc(void);
+void exit_litmus_proc(void);
+
+struct cd_mapping
+{
+        int id;
+        cpumask_var_t mask;
+        struct proc_dir_entry *proc_file;
+};
+
+struct domain_proc_info
+{
+        int num_cpus;
+        int num_domains;
+
+        struct cd_mapping *cpu_to_domains;
+        struct cd_mapping *domain_to_cpus;
+};
+
+/*
+ * On success, returns 0 and sets the pointer to the location of the new
+ * proc dir entry, otherwise returns an error code and sets pde to NULL.
+ */
+long make_plugin_proc_dir(struct sched_plugin* plugin,
+                struct proc_dir_entry** pde);
+
+/*
+ * Plugins should deallocate all child proc directory entries before
+ * calling this, to avoid memory leaks.
+ */
+void remove_plugin_proc_dir(struct sched_plugin* plugin);
+
+/*
+ * Setup the CPU <-> sched domain mappings in proc
+ */
+long activate_domain_proc(struct domain_proc_info* map);
+
+/*
+ * Remove the CPU <-> sched domain mappings from proc
+ */
+long deactivate_domain_proc(void);
+
+/*
+ * Alloc memory for the mapping
+ * Note: Does not set up proc files. Use make_sched_domain_maps for that.
+ */
+long init_domain_proc_info(struct domain_proc_info* map,
+        int num_cpus, int num_domains);
+
+/*
+ * Free memory of the mapping
+ * Note: Does not clean up proc files. Use deactivate_domain_proc for that.
+ */
+void destroy_domain_proc_info(struct domain_proc_info* map);
+
+/* Copy at most size-1 bytes from ubuf into kbuf, null-terminate buf, and
+ * remove a '\n' if present. Returns the number of bytes that were read or
+ * -EFAULT. */
+int copy_and_chomp(char *kbuf, unsigned long ksize,
+                   __user const char* ubuf, unsigned long ulength);