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-rw-r--r--cpukit/include/rtems/score/scheduleredfsmp.h75
1 files changed, 67 insertions, 8 deletions
diff --git a/cpukit/include/rtems/score/scheduleredfsmp.h b/cpukit/include/rtems/score/scheduleredfsmp.h
index 6fef6fb86a..f915154241 100644
--- a/cpukit/include/rtems/score/scheduleredfsmp.h
+++ b/cpukit/include/rtems/score/scheduleredfsmp.h
@@ -1,3 +1,5 @@
+/* SPDX-License-Identifier: BSD-2-Clause */
+
/**
* @file
*
@@ -8,11 +10,28 @@
*/
/*
- * Copyright (c) 2017, 2018 embedded brains GmbH.
+ * Copyright (C) 2017, 2018 embedded brains GmbH & Co. KG
+ *
+ * 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.
*
- * The license and distribution terms for this file may be
- * found in the file LICENSE in this distribution or at
- * http://www.rtems.org/license/LICENSE.
+ * 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_SCHEDULEREDFSMP_H
@@ -79,9 +98,18 @@ typedef struct {
RBTree_Control Queue;
/**
- * @brief The scheduled thread of the corresponding processor.
+ * @brief If this member is not NULL, then it references the scheduled thread
+ * affine only to the corresponding processor, otherwise the processor is
+ * allocated to a thread which may execute on any of the processors owned
+ * by the scheduler.
*/
- Scheduler_EDF_SMP_Node *scheduled;
+ Scheduler_EDF_SMP_Node *affine_scheduled;
+
+ /**
+ * @brief This member references the thread allocated to the corresponding
+ * processor.
+ */
+ Scheduler_EDF_SMP_Node *allocated;
} Scheduler_EDF_SMP_Ready_queue;
typedef struct {
@@ -110,7 +138,7 @@ typedef struct {
#define SCHEDULER_EDF_SMP_ENTRY_POINTS \
{ \
_Scheduler_EDF_SMP_Initialize, \
- _Scheduler_default_Schedule, \
+ NULL, \
_Scheduler_EDF_SMP_Yield, \
_Scheduler_EDF_SMP_Block, \
_Scheduler_EDF_SMP_Unblock, \
@@ -120,6 +148,8 @@ typedef struct {
_Scheduler_EDF_SMP_Ask_for_help, \
_Scheduler_EDF_SMP_Reconsider_help_request, \
_Scheduler_EDF_SMP_Withdraw_node, \
+ _Scheduler_EDF_SMP_Make_sticky, \
+ _Scheduler_EDF_SMP_Clean_sticky, \
_Scheduler_EDF_SMP_Pin, \
_Scheduler_EDF_SMP_Unpin, \
_Scheduler_EDF_SMP_Add_processor, \
@@ -128,7 +158,6 @@ typedef struct {
_Scheduler_default_Node_destroy, \
_Scheduler_EDF_Release_job, \
_Scheduler_EDF_Cancel_job, \
- _Scheduler_default_Tick, \
_Scheduler_EDF_SMP_Start_idle, \
_Scheduler_EDF_SMP_Set_affinity \
}
@@ -241,6 +270,36 @@ void _Scheduler_EDF_SMP_Withdraw_node(
);
/**
+ * @brief Makes the node sticky.
+ *
+ * @param scheduler is the scheduler of the node.
+ *
+ * @param[in, out] the_thread is the thread owning the node.
+ *
+ * @param[in, out] node is the scheduler node to make sticky.
+ */
+void _Scheduler_EDF_SMP_Make_sticky(
+ const Scheduler_Control *scheduler,
+ Thread_Control *the_thread,
+ Scheduler_Node *node
+);
+
+/**
+ * @brief Cleans the sticky property from the node.
+ *
+ * @param scheduler is the scheduler of the node.
+ *
+ * @param[in, out] the_thread is the thread owning the node.
+ *
+ * @param[in, out] node is the scheduler node to clean the sticky property.
+ */
+void _Scheduler_EDF_SMP_Clean_sticky(
+ const Scheduler_Control *scheduler,
+ Thread_Control *the_thread,
+ Scheduler_Node *node
+);
+
+/**
* @brief Pin thread operation.
*
* @param scheduler The scheduler instance of the specified processor.