diff options
Diffstat (limited to 'cpukit/score/src/schedulersimplesmp.c')
| -rw-r--r-- | cpukit/score/src/schedulersimplesmp.c | 123 |
1 files changed, 109 insertions, 14 deletions
diff --git a/cpukit/score/src/schedulersimplesmp.c b/cpukit/score/src/schedulersimplesmp.c index bcb686bdd2..eed96617b2 100644 --- a/cpukit/score/src/schedulersimplesmp.c +++ b/cpukit/score/src/schedulersimplesmp.c @@ -1,3 +1,5 @@ +/* SPDX-License-Identifier: BSD-2-Clause */ + /** * @file * @@ -11,15 +13,34 @@ * _Scheduler_simple_SMP_Reconsider_help_request(), * _Scheduler_simple_SMP_Remove_processor(), _Scheduler_simple_SMP_Unblock(), * _Scheduler_simple_SMP_Update_priority(), - * _Scheduler_simple_SMP_Withdraw_node(), and _Scheduler_simple_SMP_Yield(). + * _Scheduler_simple_SMP_Withdraw_node(), + * _Scheduler_simple_SMP_Make_sticky(), _Scheduler_simple_SMP_Clean_sticky(), + * and _Scheduler_simple_SMP_Yield(). */ /* - * Copyright (c) 2013, 2016 embedded brains GmbH. + * Copyright (C) 2013, 2016 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. */ #ifdef HAVE_CONFIG_H @@ -170,6 +191,30 @@ static void _Scheduler_simple_SMP_Extract_from_ready( _Chain_Extract_unprotected( &node_to_extract->Node.Chain ); } +static inline Scheduler_Node *_Scheduler_simple_SMP_Get_idle( void *arg ) +{ + Scheduler_simple_SMP_Context *self = + _Scheduler_simple_SMP_Get_self( arg ); + Scheduler_Node *lowest_ready = (Scheduler_Node *) _Chain_Last( &self->Ready ); + + _Assert( &lowest_ready->Node.Chain != _Chain_Head( &self->Ready ) ); + _Chain_Extract_unprotected( &lowest_ready->Node.Chain ); + + return lowest_ready; +} + +static inline void _Scheduler_simple_SMP_Release_idle( + Scheduler_Node *node, + void *arg +) +{ + Scheduler_simple_SMP_Context *self; + + self = _Scheduler_simple_SMP_Get_self( arg ); + + _Chain_Append_unprotected( &self->Ready, &node->Node.Chain ); +} + void _Scheduler_simple_SMP_Block( const Scheduler_Control *scheduler, Thread_Control *thread, @@ -186,7 +231,8 @@ void _Scheduler_simple_SMP_Block( _Scheduler_simple_SMP_Extract_from_ready, _Scheduler_simple_SMP_Get_highest_ready, _Scheduler_simple_SMP_Move_from_ready_to_scheduled, - _Scheduler_SMP_Allocate_processor_lazy + _Scheduler_SMP_Allocate_processor_lazy, + _Scheduler_simple_SMP_Get_idle ); } @@ -204,18 +250,21 @@ static bool _Scheduler_simple_SMP_Enqueue( _Scheduler_simple_SMP_Insert_ready, _Scheduler_SMP_Insert_scheduled, _Scheduler_simple_SMP_Move_from_scheduled_to_ready, + _Scheduler_simple_SMP_Move_from_ready_to_scheduled, _Scheduler_SMP_Get_lowest_scheduled, - _Scheduler_SMP_Allocate_processor_lazy + _Scheduler_SMP_Allocate_processor_lazy, + _Scheduler_simple_SMP_Get_idle, + _Scheduler_simple_SMP_Release_idle ); } -static bool _Scheduler_simple_SMP_Enqueue_scheduled( +static void _Scheduler_simple_SMP_Enqueue_scheduled( Scheduler_Context *context, Scheduler_Node *node, Priority_Control insert_priority ) { - return _Scheduler_SMP_Enqueue_scheduled( + _Scheduler_SMP_Enqueue_scheduled( context, node, insert_priority, @@ -225,7 +274,9 @@ static bool _Scheduler_simple_SMP_Enqueue_scheduled( _Scheduler_simple_SMP_Insert_ready, _Scheduler_SMP_Insert_scheduled, _Scheduler_simple_SMP_Move_from_ready_to_scheduled, - _Scheduler_SMP_Allocate_processor_lazy + _Scheduler_SMP_Allocate_processor_lazy, + _Scheduler_simple_SMP_Get_idle, + _Scheduler_simple_SMP_Release_idle ); } @@ -242,7 +293,8 @@ void _Scheduler_simple_SMP_Unblock( thread, node, _Scheduler_simple_SMP_Do_update, - _Scheduler_simple_SMP_Enqueue + _Scheduler_simple_SMP_Enqueue, + _Scheduler_simple_SMP_Release_idle ); } @@ -261,7 +313,8 @@ static bool _Scheduler_simple_SMP_Do_ask_for_help( _Scheduler_SMP_Insert_scheduled, _Scheduler_simple_SMP_Move_from_scheduled_to_ready, _Scheduler_SMP_Get_lowest_scheduled, - _Scheduler_SMP_Allocate_processor_lazy + _Scheduler_SMP_Allocate_processor_lazy, + _Scheduler_simple_SMP_Release_idle ); } @@ -277,6 +330,7 @@ void _Scheduler_simple_SMP_Update_priority( context, thread, node, + _Scheduler_SMP_Extract_from_scheduled, _Scheduler_simple_SMP_Extract_from_ready, _Scheduler_simple_SMP_Do_update, _Scheduler_simple_SMP_Enqueue, @@ -326,10 +380,47 @@ void _Scheduler_simple_SMP_Withdraw_node( the_thread, node, next_state, + _Scheduler_SMP_Extract_from_scheduled, + _Scheduler_simple_SMP_Extract_from_ready, + _Scheduler_simple_SMP_Get_highest_ready, + _Scheduler_simple_SMP_Move_from_ready_to_scheduled, + _Scheduler_SMP_Allocate_processor_lazy, + _Scheduler_simple_SMP_Get_idle + ); +} + +void _Scheduler_simple_SMP_Make_sticky( + const Scheduler_Control *scheduler, + Thread_Control *the_thread, + Scheduler_Node *node +) +{ + _Scheduler_SMP_Make_sticky( + scheduler, + the_thread, + node, + _Scheduler_simple_SMP_Do_update, + _Scheduler_simple_SMP_Enqueue + ); +} + +void _Scheduler_simple_SMP_Clean_sticky( + const Scheduler_Control *scheduler, + Thread_Control *the_thread, + Scheduler_Node *node +) +{ + _Scheduler_SMP_Clean_sticky( + scheduler, + the_thread, + node, + _Scheduler_SMP_Extract_from_scheduled, _Scheduler_simple_SMP_Extract_from_ready, _Scheduler_simple_SMP_Get_highest_ready, _Scheduler_simple_SMP_Move_from_ready_to_scheduled, - _Scheduler_SMP_Allocate_processor_lazy + _Scheduler_SMP_Allocate_processor_lazy, + _Scheduler_simple_SMP_Get_idle, + _Scheduler_simple_SMP_Release_idle ); } @@ -359,8 +450,11 @@ Thread_Control *_Scheduler_simple_SMP_Remove_processor( return _Scheduler_SMP_Remove_processor( context, cpu, + _Scheduler_SMP_Extract_from_scheduled, _Scheduler_simple_SMP_Extract_from_ready, - _Scheduler_simple_SMP_Enqueue + _Scheduler_simple_SMP_Enqueue, + _Scheduler_simple_SMP_Get_idle, + _Scheduler_simple_SMP_Release_idle ); } @@ -376,6 +470,7 @@ void _Scheduler_simple_SMP_Yield( context, thread, node, + _Scheduler_SMP_Extract_from_scheduled, _Scheduler_simple_SMP_Extract_from_ready, _Scheduler_simple_SMP_Enqueue, _Scheduler_simple_SMP_Enqueue_scheduled |