score/src/schedulerdefaultpinunpindonothing.c

0001 /* SPDX-License-Identifier: BSD-2-Clause */
0002
0003 /**
0004  * @file
0005  *
0006  * @ingroup RTEMSScoreScheduler
0007  *
0008  * @brief This source file contains the implementation of
0009  *   _Scheduler_default_Pin_or_unpin_do_nothing().
0010  */
0011
0012 /*
0013  * Copyright (C) 2018 embedded brains GmbH & Co. KG
0014  *
0015  * Redistribution and use in source and binary forms, with or without
0016  * modification, are permitted provided that the following conditions
0017  * are met:
0018  * 1. Redistributions of source code must retain the above copyright
0019  *    notice, this list of conditions and the following disclaimer.
0020  * 2. Redistributions in binary form must reproduce the above copyright
0021  *    notice, this list of conditions and the following disclaimer in the
0022  *    documentation and/or other materials provided with the distribution.
0023  *
0024  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
0025  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
0026  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
0027  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
0028  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
0029  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
0030  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
0031  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
0032  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
0033  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
0034  * POSSIBILITY OF SUCH DAMAGE.
0035  */
0036
0037 #ifdef HAVE_CONFIG_H
0038 #include "config.h"
0039 #endif
0040
0041 #include <rtems/score/scheduler.h>
0042 #include <rtems/score/interr.h>
0043 #include <rtems/score/smpimpl.h>
0044 #include <rtems/sysinit.h>
0045
0046 void _Scheduler_default_Pin_or_unpin_do_nothing(
0047   const Scheduler_Control *scheduler,
0048   Thread_Control          *the_thread,
0049   Scheduler_Node          *node,
0050   struct Per_CPU_Control  *cpu
0051 )
0052 {
0053   (void) scheduler;
0054   (void) the_thread;
0055   (void) node;
0056   (void) cpu;
0057 }
0058
0059 static void _Scheduler_Ensure_exactly_one_processor( void )
0060 {
0061   if ( _SMP_Get_processor_maximum() != 1 ) {
0062     _Terminate(
0063       RTEMS_FATAL_SOURCE_SMP,
0064       SMP_FATAL_SCHEDULER_REQUIRES_EXACTLY_ONE_PROCESSOR
0065     );
0066   }
0067 }
0068
0069 RTEMS_SYSINIT_ITEM(
0070   _Scheduler_Ensure_exactly_one_processor,
0071   RTEMS_SYSINIT_SCHEDULER,
0072   RTEMS_SYSINIT_ORDER_MIDDLE
0073 );