extern void *gru_get_next_message(struct gru_message_queue_desc *mqd);
+/*
+ * Read a GRU global GPA. Source can be located in a remote partition.
+ *
+ * Input:
+ * value memory address where MMR value is returned
+ * gpa source numalink physical address of GPA
+ *
+ * Output:
+ * 0 OK
+ * >0 error
+ */
+int gru_read_gpa(unsigned long *value, unsigned long gpa);
+
+
/*
* Copy data using the GRU. Source or destination can be located in a remote
* partition.