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/**
* @file
*
* @ingroup ScoreSchedulerPrioritySMP
*
* @brief Deterministic Priority SMP Scheduler Implementation
*/
/*
* Copyright (c) 2013-2014 embedded brains GmbH. All rights reserved.
*
* embedded brains GmbH
* Dornierstr. 4
* 82178 Puchheim
* Germany
* <rtems@embedded-brains.de>
*
* 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.
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <rtems/score/schedulerprioritysmpimpl.h>
static Scheduler_priority_SMP_Context *
_Scheduler_priority_SMP_Get_context( const Scheduler_Control *scheduler )
{
return (Scheduler_priority_SMP_Context *) _Scheduler_Get_context( scheduler );
}
void _Scheduler_priority_SMP_Initialize( const Scheduler_Control *scheduler )
{
Scheduler_priority_SMP_Context *self =
_Scheduler_priority_SMP_Get_context( scheduler );
_Scheduler_SMP_Initialize( &self->Base );
_Priority_bit_map_Initialize( &self->Bit_map );
_Scheduler_priority_Ready_queue_initialize(
&self->Ready[ 0 ],
scheduler->maximum_priority
);
}
void _Scheduler_priority_SMP_Node_initialize(
const Scheduler_Control *scheduler,
Scheduler_Node *node,
Thread_Control *the_thread,
Priority_Control priority
)
{
Scheduler_Context *context;
Scheduler_priority_SMP_Context *self;
Scheduler_priority_SMP_Node *the_node;
the_node = _Scheduler_priority_SMP_Node_downcast( node );
_Scheduler_SMP_Node_initialize(
scheduler,
&the_node->Base,
the_thread,
priority
);
context = _Scheduler_Get_context( scheduler );
self = _Scheduler_priority_SMP_Get_self( context );
_Scheduler_priority_Ready_queue_update(
&the_node->Ready_queue,
SCHEDULER_PRIORITY_UNMAP( priority ),
&self->Bit_map,
&self->Ready[ 0 ]
);
}
static Scheduler_Node *_Scheduler_priority_SMP_Get_highest_ready(
Scheduler_Context *context,
Scheduler_Node *node
)
{
Scheduler_priority_SMP_Context *self =
_Scheduler_priority_SMP_Get_self( context );
(void) node;
return (Scheduler_Node *) _Scheduler_priority_Ready_queue_first(
&self->Bit_map,
&self->Ready[ 0 ]
);
}
void _Scheduler_priority_SMP_Block(
const Scheduler_Control *scheduler,
Thread_Control *thread,
Scheduler_Node *node
)
{
Scheduler_Context *context = _Scheduler_Get_context( scheduler );
_Scheduler_SMP_Block(
context,
thread,
node,
_Scheduler_SMP_Extract_from_scheduled,
_Scheduler_priority_SMP_Extract_from_ready,
_Scheduler_priority_SMP_Get_highest_ready,
_Scheduler_priority_SMP_Move_from_ready_to_scheduled,
_Scheduler_SMP_Allocate_processor_lazy
);
}
static bool _Scheduler_priority_SMP_Enqueue(
Scheduler_Context *context,
Scheduler_Node *node,
Priority_Control insert_priority
)
{
return _Scheduler_SMP_Enqueue(
context,
node,
insert_priority,
_Scheduler_SMP_Priority_less_equal,
_Scheduler_priority_SMP_Insert_ready,
_Scheduler_SMP_Insert_scheduled,
_Scheduler_priority_SMP_Move_from_scheduled_to_ready,
_Scheduler_SMP_Get_lowest_scheduled,
_Scheduler_SMP_Allocate_processor_lazy
);
}
static bool _Scheduler_priority_SMP_Enqueue_scheduled(
Scheduler_Context *context,
Scheduler_Node *node,
Priority_Control insert_priority
)
{
return _Scheduler_SMP_Enqueue_scheduled(
context,
node,
insert_priority,
_Scheduler_SMP_Priority_less_equal,
_Scheduler_priority_SMP_Extract_from_ready,
_Scheduler_priority_SMP_Get_highest_ready,
_Scheduler_priority_SMP_Insert_ready,
_Scheduler_SMP_Insert_scheduled,
_Scheduler_priority_SMP_Move_from_ready_to_scheduled,
_Scheduler_SMP_Allocate_processor_lazy
);
}
void _Scheduler_priority_SMP_Unblock(
const Scheduler_Control *scheduler,
Thread_Control *thread,
Scheduler_Node *node
)
{
Scheduler_Context *context = _Scheduler_Get_context( scheduler );
_Scheduler_SMP_Unblock(
context,
thread,
node,
_Scheduler_priority_SMP_Do_update,
_Scheduler_priority_SMP_Enqueue
);
}
static bool _Scheduler_priority_SMP_Do_ask_for_help(
Scheduler_Context *context,
Thread_Control *the_thread,
Scheduler_Node *node
)
{
return _Scheduler_SMP_Ask_for_help(
context,
the_thread,
node,
_Scheduler_SMP_Priority_less_equal,
_Scheduler_priority_SMP_Insert_ready,
_Scheduler_SMP_Insert_scheduled,
_Scheduler_priority_SMP_Move_from_scheduled_to_ready,
_Scheduler_SMP_Get_lowest_scheduled,
_Scheduler_SMP_Allocate_processor_lazy
);
}
void _Scheduler_priority_SMP_Update_priority(
const Scheduler_Control *scheduler,
Thread_Control *thread,
Scheduler_Node *node
)
{
Scheduler_Context *context = _Scheduler_Get_context( scheduler );
_Scheduler_SMP_Update_priority(
context,
thread,
node,
_Scheduler_priority_SMP_Extract_from_ready,
_Scheduler_priority_SMP_Do_update,
_Scheduler_priority_SMP_Enqueue,
_Scheduler_priority_SMP_Enqueue_scheduled,
_Scheduler_priority_SMP_Do_ask_for_help
);
}
bool _Scheduler_priority_SMP_Ask_for_help(
const Scheduler_Control *scheduler,
Thread_Control *the_thread,
Scheduler_Node *node
)
{
Scheduler_Context *context = _Scheduler_Get_context( scheduler );
return _Scheduler_priority_SMP_Do_ask_for_help( context, the_thread, node );
}
void _Scheduler_priority_SMP_Reconsider_help_request(
const Scheduler_Control *scheduler,
Thread_Control *the_thread,
Scheduler_Node *node
)
{
Scheduler_Context *context = _Scheduler_Get_context( scheduler );
_Scheduler_SMP_Reconsider_help_request(
context,
the_thread,
node,
_Scheduler_priority_SMP_Extract_from_ready
);
}
void _Scheduler_priority_SMP_Withdraw_node(
const Scheduler_Control *scheduler,
Thread_Control *the_thread,
Scheduler_Node *node,
Thread_Scheduler_state next_state
)
{
Scheduler_Context *context = _Scheduler_Get_context( scheduler );
_Scheduler_SMP_Withdraw_node(
context,
the_thread,
node,
next_state,
_Scheduler_priority_SMP_Extract_from_ready,
_Scheduler_priority_SMP_Get_highest_ready,
_Scheduler_priority_SMP_Move_from_ready_to_scheduled,
_Scheduler_SMP_Allocate_processor_lazy
);
}
void _Scheduler_priority_SMP_Add_processor(
const Scheduler_Control *scheduler,
Thread_Control *idle
)
{
Scheduler_Context *context = _Scheduler_Get_context( scheduler );
_Scheduler_SMP_Add_processor(
context,
idle,
_Scheduler_priority_SMP_Has_ready,
_Scheduler_priority_SMP_Enqueue_scheduled,
_Scheduler_SMP_Do_nothing_register_idle
);
}
Thread_Control *_Scheduler_priority_SMP_Remove_processor(
const Scheduler_Control *scheduler,
Per_CPU_Control *cpu
)
{
Scheduler_Context *context = _Scheduler_Get_context( scheduler );
return _Scheduler_SMP_Remove_processor(
context,
cpu,
_Scheduler_priority_SMP_Extract_from_ready,
_Scheduler_priority_SMP_Enqueue
);
}
void _Scheduler_priority_SMP_Yield(
const Scheduler_Control *scheduler,
Thread_Control *thread,
Scheduler_Node *node
)
{
Scheduler_Context *context = _Scheduler_Get_context( scheduler );
_Scheduler_SMP_Yield(
context,
thread,
node,
_Scheduler_priority_SMP_Extract_from_ready,
_Scheduler_priority_SMP_Enqueue,
_Scheduler_priority_SMP_Enqueue_scheduled
);
}
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