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Diffstat (limited to 'cpukit/rtems/include/rtems/rtems/smp.h')
-rw-r--r-- | cpukit/rtems/include/rtems/rtems/smp.h | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/cpukit/rtems/include/rtems/rtems/smp.h b/cpukit/rtems/include/rtems/rtems/smp.h new file mode 100644 index 0000000000..6ebe9502a6 --- /dev/null +++ b/cpukit/rtems/include/rtems/rtems/smp.h @@ -0,0 +1,82 @@ +/** + * @file rtems/rtems/smp.h + * + * This include file provides the application interface + * to SMP information and services. + * + * Most of the SMP interface is hidden from the application + * and exists between the BSP and RTEMS. + */ + +/* 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.com/license/LICENSE. + * + * $Id$ + */ + +#ifndef _RTEMS_RTEMS_SMP_H +#define _RTEMS_RTEMS_SMP_H + +#ifdef __cplusplus +extern "C" { +#endif + +#include <rtems/score/smp.h> + +/** + * @defgroup ClassicSMP Classic API SMP Services + * + * @ingroup ClassicRTEMS + * + * This encapsulates functionality which is useful for SMP applications. + */ +/**@{*/ + +extern uint32_t rtems_configuration_smp_maximum_processors; + +/** + * @brief Obtain Number of Cores in System + * + * This method returns the number of CPU cores that are currently in + * the system. This will always be less than or equal to the number + * of maximum number of cores which were configured. + * + * @return This method returns the number of cores in this system. + */ +#define rtems_smp_get_number_of_processors() \ + (_SMP_Processor_count) + +/** + * @brief Obtain Maximum Cores Configured + * + * This method returns the number of CPU cores that were configured + * in the system. The actual number of cores will always be less than + * or equal to the number of maximum number of cores which were configured. + * + * @return This method returns the number of cores configured. + */ +#define rtems_configuration_get_smp_maximum_processors() \ + (rtems_configuration_smp_maximum_processors) + +/** + * @brief Obtain Current Core Number + * + * This method returns the id of the current CPU core. + * + * @return This method returns the id of the current CPU core. + */ +#define rtems_smp_get_current_processor() \ + bsp_smp_processor_id() + +/**@}*/ + +#ifdef __cplusplus +} +#endif + +#endif +/* end of include file */ |