From 0d5a9f1bb72c0fae779bf6ab1e59b315b381e903 Mon Sep 17 00:00:00 2001 From: Jennifer Averett Date: Wed, 27 Apr 2011 17:18:59 +0000 Subject: 2011-04-27 Jennifer Averett PR 1784 * sapi/src/exinit.c, score/Makefile.am, score/preinstall.am, score/include/rtems/bspsmp.h, score/src/percpu.c, score/src/smp.c, score/src/threadcreateidle.c: Split bspsmp.h into two files smp.h and bspsmp.h * score/include/rtems/score/smp.h: New file. --- cpukit/score/include/rtems/score/smp.h | 112 +++++++++++++++++++++++++++++++++ 1 file changed, 112 insertions(+) create mode 100644 cpukit/score/include/rtems/score/smp.h (limited to 'cpukit/score/include/rtems/score/smp.h') diff --git a/cpukit/score/include/rtems/score/smp.h b/cpukit/score/include/rtems/score/smp.h new file mode 100644 index 0000000000..54e4300ec4 --- /dev/null +++ b/cpukit/score/include/rtems/score/smp.h @@ -0,0 +1,112 @@ +/** + * @file rtems/score/smp.h + * + * This include file defines the interface to the SuperCore + * SMP support that is used internally to 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_SCORE_SMP_H +#define _RTEMS_SCORE_SMP_H + +#if defined (RTEMS_SMP) +#include + +/** + * @defgroup SuperCore SMP Support + * + * This defines the interface of the SuperCore support + * code for SMP support. + */ + +/**@{*/ + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * This defines the bit which indicates the interprocessor interrupt + * has been requested so that RTEMS will reschedule on this CPU + * because the currently executing thread needs to be switched out. + */ +#define RTEMS_BSP_SMP_CONTEXT_SWITCH_NECESSARY 0x01 + +/** + * This defines the bit which indicates the interprocessor interrupt + * has been requested so that RTEMS will reschedule on this CPU + * because the currently executing thread has been sent a signal. + */ +#define RTEMS_BSP_SMP_SIGNAL_TO_SELF 0x02 + +/** + * This defines the bit which indicates the interprocessor interrupt + * has been requested so that this CPU will be shutdown. This is done + * as part of rtems_executive_shutdown(). + */ +#define RTEMS_BSP_SMP_SHUTDOWN 0x04 + +/** + * This defines the bit which indicates the interprocessor interrupt + * has been requested that the receiving CPU needs to perform a context + * switch to the first task. + */ +#define RTEMS_BSP_SMP_FIRST_TASK 0x08 + +#ifndef ASM +/** + * @brief Number of CPUs in SMP System + * + * This variable is set during the SMP initialization sequence to + * indicate the number of CPUs in this system. + */ +SCORE_EXTERN uint32_t _SMP_Processor_count; + +/** + * @brief Make Request of Others CPUs + * + * This method is invoked by RTEMS when it needs to make a request + * of the other CPUs. It should be implemented using some type of + * interprocessor interrupt. CPUs not including the originating + * CPU should receive the message. + * + * @param [in] message is message to send + */ +void _SMP_Broadcast_message( + uint32_t message +); + +/** + * @brief Request Dispatch on Other Cores + * + * Send message to other cores requesting them to perform + * a thread dispatch operation. + */ +void _SMP_Request_other_cores_to_dispatch(void); + +/** + * @Brief Request Other Cores to Shutdown + * + * Send message to other cores requesting them to shutdown. + */ +void _SMP_Request_other_cores_to_shutdown(void); + +#endif + +#ifdef __cplusplus +} +#endif + +#endif +#endif +/* end of include file */ -- cgit v1.2.3