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/* SPDX-License-Identifier: BSD-2-Clause */
/**
* @file
*
* @ingroup RTEMSScoreSMP
*
* @brief This header file provides interfaces of the
* @ref RTEMSScoreSMP which are used by the implementation and the
* @ref RTEMSImplApplConfig.
*/
/*
* COPYRIGHT (c) 1989-2011.
* On-Line Applications Research Corporation (OAR).
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _RTEMS_SCORE_SMP_H
#define _RTEMS_SCORE_SMP_H
#include <rtems/score/cpu.h>
#ifdef __cplusplus
extern "C" {
#endif
/**
* @defgroup RTEMSScoreSMP SMP Support
*
* @ingroup RTEMSScore
*
* @brief This group contains the implementation to support SMP systems.
*
* @{
*/
/**
* @brief The configured processor maximum.
*
* In SMP configurations, this constant is defined by the application
* configuration via <rtems/confdefs.h>, otherwise it is a compile-time
* constant with the value one.
*/
#if defined(RTEMS_SMP)
extern const uint32_t _SMP_Processor_configured_maximum;
#else
#define _SMP_Processor_configured_maximum 1
#endif
#if defined( RTEMS_SMP )
extern uint32_t _SMP_Processor_maximum;
static inline uint32_t _SMP_Get_processor_maximum( void )
{
return _SMP_Processor_maximum;
}
#else
#define _SMP_Get_processor_maximum() UINT32_C(1)
#endif
#if defined( RTEMS_SMP )
static inline uint32_t _SMP_Get_current_processor( void )
{
return _CPU_SMP_Get_current_processor();
}
#else
#define _SMP_Get_current_processor() UINT32_C(0)
#endif
/** @} */
#ifdef __cplusplus
}
#endif
#endif
/* end of include file */
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