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authorJennifer Averett <Jennifer.Averett@OARcorp.com>2011-04-27 17:18:59 +0000
committerJennifer Averett <Jennifer.Averett@OARcorp.com>2011-04-27 17:18:59 +0000
commit0d5a9f1bb72c0fae779bf6ab1e59b315b381e903 (patch)
tree1528f12ff6fe8fba7ee95de211c4e2695d67603e /cpukit/score/include/rtems/score/smp.h
parentRegenerate. (diff)
downloadrtems-0d5a9f1bb72c0fae779bf6ab1e59b315b381e903.tar.bz2
2011-04-27 Jennifer Averett <Jennifer.Averett@OARcorp.com>
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.
Diffstat (limited to '')
-rw-r--r--cpukit/score/include/rtems/score/smp.h112
1 files changed, 112 insertions, 0 deletions
diff --git a/cpukit/score/include/rtems/score/smp.h b/cpukit/score/include/rtems/score/smp.h
new file mode 100644
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+++ 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 <rtems/score/percpu.h>
+
+/**
+ * @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 */