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diff --git a/include/rtems/score/priority.h b/include/rtems/score/priority.h
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+/**
+ * @file rtems/score/priority.h
+ *
+ * @brief Thread Priority Manipulation Routines
+ *
+ * This include file contains all thread priority manipulation routines.
+ * This Handler provides mechanisms which can be used to
+ * initialize and manipulate thread priorities.
+ */
+
+/*
+ *  COPYRIGHT (c) 1989-2011.
+ *  On-Line Applications Research Corporation (OAR).
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.rtems.org/license/LICENSE.
+ */
+
+#ifndef _RTEMS_SCORE_PRIORITY_H
+#define _RTEMS_SCORE_PRIORITY_H
+
+/**
+ *  @defgroup ScorePriority Priority Handler
+ *
+ *  @ingroup Score
+ *
+ *  This handler encapsulates functionality which is used to manage
+ *  thread priorities.  At the SuperCore level 256 priority levels
+ *  are supported with lower numbers representing logically more important
+ *  threads.  The priority level 0 is reserved for internal RTEMS use.
+ *  Typically it is assigned to threads which defer internal RTEMS
+ *  actions from an interrupt to thread level to improve interrupt response.
+ *  Priority level 255 is assigned to the IDLE thread and really should not
+ *  be used by application threads.  The default IDLE thread implementation
+ *  is an infinite "branch to self" loop which never yields to other threads
+ *  at the same priority.
+ */
+/**@{*/
+
+/*
+ * Processor specific information.
+ */
+#include <rtems/score/cpu.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ *  The following type defines the control block used to manage
+ *  thread priorities.
+ *
+ *  @note Priority 0 is reserved for internal threads only.
+ */
+typedef uint32_t   Priority_Control;
+
+/** This defines the highest (most important) thread priority. */
+#define PRIORITY_MINIMUM      0
+
+/**
+ * @brief This defines the priority of pseudo-ISR threads.
+ *
+ * Examples are the MPCI and timer server threads.
+ */
+#define PRIORITY_PSEUDO_ISR   PRIORITY_MINIMUM
+
+/** This defines the default lowest (least important) thread priority. */
+#if defined (CPU_PRIORITY_MAXIMUM)
+  #define PRIORITY_DEFAULT_MAXIMUM      CPU_PRIORITY_MAXIMUM
+#else
+  #define PRIORITY_DEFAULT_MAXIMUM      255
+#endif
+
+/** This defines the lowest (least important) thread priority. */
+#define PRIORITY_MAXIMUM      rtems_maximum_priority
+
+/**
+ *  This variable contains the configured number of priorities
+ */
+extern uint8_t rtems_maximum_priority;
+
+#ifdef __cplusplus
+}
+#endif
+
+/**@}*/
+
+#endif
+/* end of include file */