* score/Makefile.am, score/preinstall.am,

	score/include/rtems/score/coresem.h,
	score/include/rtems/score/object.h,
	score/include/rtems/score/states.h,
	score/inline/rtems/score/coresem.inl: Add SuperCore Barriers,
	SpinLocks and a partial implementation of RWLocks.
	* score/include/rtems/score/corebarrier.h,
	score/include/rtems/score/corerwlock.h,
	score/include/rtems/score/corespinlock.h,
	score/inline/rtems/score/corebarrier.inl,
	score/inline/rtems/score/corerwlock.inl,
	score/inline/rtems/score/corespinlock.inl,
	score/macros/rtems/score/corebarrier.inl,
	score/macros/rtems/score/corerwlock.inl,
	score/macros/rtems/score/corespinlock.inl, score/src/corebarrier.c,
	score/src/corebarrierrelease.c, score/src/corebarrierwait.c,
	score/src/corerwlock.c, score/src/corerwlockobtainread.c,
	score/src/corerwlockobtainwrite.c, score/src/corerwlockrelease.c,
	score/src/corespinlock.c, score/src/corespinlockrelease.c,
	score/src/corespinlockwait.c: New files.

1 files changed, 195 insertions, 0 deletions

diff --git a/cpukit/score/include/rtems/score/corebarrier.h b/cpukit/score/include/rtems/score/corebarrier.h
new file mode 100644
index 0000000000..34337e195f
--- /dev/null
+++ b/cpukit/score/include/rtems/score/corebarrier.h
@@ -0,0 +1,195 @@
+/** 
+ *  @file  rtems/score/corebarrier.h
+ *
+ *  This include file contains all the constants and structures associated
+ *  with the Barrier Handler.
+ */
+
+/*
+ *  COPYRIGHT (c) 1989-2006.
+ *  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.com/license/LICENSE.
+ *
+ *  $Id$
+ */
+
+#ifndef _RTEMS_SCORE_COREBARRIER_H
+#define _RTEMS_SCORE_COREBARRIER_H
+
+/**
+ *  @defgroup ScoreBarrier Barrier Handler
+ *
+ *  This handler encapsulates functionality which provides the foundation
+ *  Barrier services used in all of the APIs supported by RTEMS.
+ */
+/**@{*/
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <rtems/score/thread.h>
+#include <rtems/score/threadq.h>
+#include <rtems/score/priority.h>
+#include <rtems/score/watchdog.h>
+
+/**
+ *  The following type defines the callout which the API provides
+ *  to support global/multiprocessor operations on barriers.
+ */
+typedef void ( *CORE_barrier_API_mp_support_callout )(
+                 Thread_Control *,
+                 Objects_Id
+             );
+
+/**
+ *  Flavors of barriers.
+ */
+typedef enum {
+  /** This specifies that the barrier will automatically release when
+   *  the user specified number of threads have arrived at the barrier.
+   */
+  CORE_BARRIER_AUTOMATIC_RELEASE,
+  /** This specifies that the user will have to manually release the barrier
+   *  in order to release the waiting threads.
+   */
+  CORE_BARRIER_MANUAL_RELEASE
+}   CORE_barrier_Disciplines;
+
+/**
+ *  Core Barrier handler return statuses.
+ */
+typedef enum {
+  /** This status indicates that the operation completed successfully. */
+  CORE_BARRIER_STATUS_SUCCESSFUL,
+  /** This status indicates that the barrier is configured for automatic
+   *  release and the caller tripped the automatic release.  The caller
+   *  thus did not block.
+   */
+  CORE_BARRIER_STATUS_AUTOMATICALLY_RELEASED,
+  /** This status indicates that the thread was blocked waiting for an
+   *  operation to complete and the barrier was deleted.
+   */
+  CORE_BARRIER_WAS_DELETED,
+  /** This status indicates that the calling task was willing to block
+   *  but the operation was unable to complete within the time allotted
+   *  because the resource never became available.
+   */
+  CORE_BARRIER_TIMEOUT
+}   CORE_barrier_Status;
+
+/**
+ *  The following defines the control block used to manage the
+ *  attributes of each barrier.
+ */
+typedef struct {
+  /** This field indicates whether the barrier is automatic or manual.
+   */
+  CORE_barrier_Disciplines  discipline;
+  /** This element indicates the number of threads which must arrive at the
+   *  barrier to trip the automatic release.
+   */
+  uint32_t                  maximum_count;
+}   CORE_barrier_Attributes;
+
+/**
+ *  The following defines the control block used to manage each
+ *  barrier.
+ */
+typedef struct {
+  /** This field is the Waiting Queue used to manage the set of tasks
+   *  which are blocked waiting for the barrier to be released.
+   */
+  Thread_queue_Control     Wait_queue;
+  /** This element is the set of attributes which define this instance's
+   *  behavior.
+   */
+  CORE_barrier_Attributes  Attributes;
+  /** This element contains the current number of thread waiting for this
+   *  barrier to be released. */
+  uint32_t                 number_of_waiting_threads;
+}   CORE_barrier_Control;
+
+/**
+ *  This routine initializes the barrier based on the parameters passed.
+ *
+ *  @param[in] the_barrier is the barrier to initialize
+ *  @param[in] the_barrier_attributes define the behavior of this instance
+ */
+void _CORE_barrier_Initialize(
+  CORE_barrier_Control       *the_barrier,
+  CORE_barrier_Attributes    *the_barrier_attributes
+);
+
+/**
+ *  This routine wait for the barrier to be released.  If the barrier
+ *  is set to automatic and this is the appropriate thread, then it returns
+ *  immediately.  Otherwise, the calling thread is blocked until the barrier
+ *  is released.
+ *
+ *  @param[in] the_barrier is the barrier to wait for
+ *  @param[in] id is the id of the object being waited upon
+ *  @param[in] wait is TRUE if the calling thread is willing to wait
+ *  @param[in] timeout is the number of ticks the calling thread is willing
+ *         to wait if @a wait is TRUE.
+ *  @param[in] api_barrier_mp_support is the routine to invoke if the
+ *         thread unblocked is remote
+ *
+ * @note Status is returned via the thread control block.
+ */
+void _CORE_barrier_Wait(
+  CORE_barrier_Control                *the_barrier,
+  Objects_Id                           id,
+  boolean                              wait,
+  Watchdog_Interval                    timeout,
+  CORE_barrier_API_mp_support_callout  api_barrier_mp_support
+);
+
+/**
+ *  This routine manually releases the barrier.  All of the threads waiting
+ *  for the barrier will be readied.
+ *
+ *  @param[in] the_barrier is the barrier to surrender
+ *  @param[in] id is the id of the object for a remote unblock
+ *  @param[in] api_barrier_mp_support is the routine to invoke if the
+ *         thread unblocked is remote
+ *
+ *  @return the number of unblocked threads
+ */
+uint32_t _CORE_barrier_Release(
+  CORE_barrier_Control                *the_barrier,
+  Objects_Id                           id,
+  CORE_barrier_API_mp_support_callout  api_barrier_mp_support
+);
+
+/**
+ *  This routine assists in the deletion of a barrier by flushing the
+ *  associated wait queue.
+ *
+ *  @param[in] the_barrier is the barrier to flush
+ *  @param[in] remote_extract_callout is the routine to invoke if the
+ *         thread unblocked is remote
+ *  @param[in] status is the status to be returned to the unblocked thread
+ */
+#define _CORE_barrier_Flush( _the_barrier, _remote_extract_callout, _status) \
+  _Thread_queue_Flush( \
+    &((_the_barrier)->Wait_queue), \
+    (_remote_extract_callout), \
+    (_status) \
+  )
+
+#ifndef __RTEMS_APPLICATION__
+#include <rtems/score/corebarrier.inl>
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+/**@}*/
+
+#endif
+/*  end of include file */