[99b3505] | 1 | /** |
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| 2 | * @file |
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| 3 | * |
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| 4 | * @ingroup ScoreSchedulerPrioritySMP |
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| 5 | * |
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| 6 | * @brief Deterministic Priority SMP Scheduler API |
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| 7 | */ |
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| 8 | |
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| 9 | /* |
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[7097962] | 10 | * Copyright (c) 2013, 2018 embedded brains GmbH. All rights reserved. |
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[99b3505] | 11 | * |
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| 12 | * embedded brains GmbH |
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| 13 | * Dornierstr. 4 |
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| 14 | * 82178 Puchheim |
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| 15 | * Germany |
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| 16 | * <rtems@embedded-brains.de> |
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| 17 | * |
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| 18 | * The license and distribution terms for this file may be |
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| 19 | * found in the file LICENSE in this distribution or at |
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[c499856] | 20 | * http://www.rtems.org/license/LICENSE. |
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[99b3505] | 21 | */ |
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| 22 | |
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| 23 | #ifndef _RTEMS_SCORE_SCHEDULERPRIORITYSMP_H |
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| 24 | #define _RTEMS_SCORE_SCHEDULERPRIORITYSMP_H |
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| 25 | |
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| 26 | #include <rtems/score/scheduler.h> |
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| 27 | #include <rtems/score/schedulerpriority.h> |
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| 28 | #include <rtems/score/schedulersmp.h> |
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| 29 | |
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| 30 | #ifdef __cplusplus |
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| 31 | extern "C" { |
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| 32 | #endif /* __cplusplus */ |
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| 33 | |
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| 34 | /** |
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| 35 | * @defgroup ScoreSchedulerPrioritySMP Deterministic Priority SMP Scheduler |
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| 36 | * |
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[5b1ff71a] | 37 | * @ingroup ScoreSchedulerSMP |
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[99b3505] | 38 | * |
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| 39 | * This is an implementation of the global fixed priority scheduler (G-FP). It |
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| 40 | * uses one ready chain per priority to ensure constant time insert operations. |
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| 41 | * The scheduled chain uses linear insert operations and has at most processor |
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| 42 | * count entries. Since the processor and priority count are constants all |
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| 43 | * scheduler operations complete in a bounded execution time. |
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| 44 | * |
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| 45 | * The thread preempt mode will be ignored. |
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| 46 | * |
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| 47 | * @{ |
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| 48 | */ |
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| 49 | |
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[beab7329] | 50 | /** |
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| 51 | * @brief Scheduler context specialization for Deterministic Priority SMP |
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| 52 | * schedulers. |
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| 53 | */ |
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[e1598a6] | 54 | typedef struct { |
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| 55 | Scheduler_SMP_Context Base; |
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| 56 | Priority_bit_map_Control Bit_map; |
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[beab7329] | 57 | Chain_Control Ready[ RTEMS_ZERO_LENGTH_ARRAY ]; |
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[e1598a6] | 58 | } Scheduler_priority_SMP_Context; |
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| 59 | |
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[beab7329] | 60 | /** |
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| 61 | * @brief Scheduler node specialization for Deterministic Priority SMP |
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| 62 | * schedulers. |
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| 63 | */ |
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| 64 | typedef struct { |
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| 65 | /** |
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| 66 | * @brief SMP scheduler node. |
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| 67 | */ |
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| 68 | Scheduler_SMP_Node Base; |
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| 69 | |
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| 70 | /** |
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| 71 | * @brief The associated ready queue of this node. |
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| 72 | */ |
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| 73 | Scheduler_priority_Ready_queue Ready_queue; |
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| 74 | } Scheduler_priority_SMP_Node; |
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| 75 | |
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[99b3505] | 76 | /** |
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[cfe457f] | 77 | * @brief Entry points for the Priority SMP Scheduler. |
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[99b3505] | 78 | */ |
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| 79 | #define SCHEDULER_PRIORITY_SMP_ENTRY_POINTS \ |
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| 80 | { \ |
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| 81 | _Scheduler_priority_SMP_Initialize, \ |
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[3733b224] | 82 | _Scheduler_default_Schedule, \ |
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[99b3505] | 83 | _Scheduler_priority_SMP_Yield, \ |
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| 84 | _Scheduler_priority_SMP_Block, \ |
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[f39f667a] | 85 | _Scheduler_priority_SMP_Unblock, \ |
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[9bfad8c] | 86 | _Scheduler_priority_SMP_Update_priority, \ |
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[77ff5599] | 87 | _Scheduler_default_Map_priority, \ |
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| 88 | _Scheduler_default_Unmap_priority, \ |
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[351c14d] | 89 | _Scheduler_priority_SMP_Ask_for_help, \ |
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| 90 | _Scheduler_priority_SMP_Reconsider_help_request, \ |
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| 91 | _Scheduler_priority_SMP_Withdraw_node, \ |
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[7097962] | 92 | _Scheduler_default_Pin_or_unpin, \ |
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| 93 | _Scheduler_default_Pin_or_unpin, \ |
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[05ca53d] | 94 | _Scheduler_priority_SMP_Add_processor, \ |
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| 95 | _Scheduler_priority_SMP_Remove_processor, \ |
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[8e467384] | 96 | _Scheduler_priority_SMP_Node_initialize, \ |
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| 97 | _Scheduler_default_Node_destroy, \ |
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[99b3505] | 98 | _Scheduler_default_Release_job, \ |
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[21bdca4] | 99 | _Scheduler_default_Cancel_job, \ |
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[99b3505] | 100 | _Scheduler_default_Tick, \ |
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[bd1431a] | 101 | _Scheduler_SMP_Start_idle \ |
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| 102 | SCHEDULER_OPERATION_DEFAULT_GET_SET_AFFINITY \ |
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[99b3505] | 103 | } |
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| 104 | |
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[e1598a6] | 105 | void _Scheduler_priority_SMP_Initialize( const Scheduler_Control *scheduler ); |
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[99b3505] | 106 | |
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[8e467384] | 107 | void _Scheduler_priority_SMP_Node_initialize( |
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[beab7329] | 108 | const Scheduler_Control *scheduler, |
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[df2177ab] | 109 | Scheduler_Node *node, |
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[9bfad8c] | 110 | Thread_Control *the_thread, |
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| 111 | Priority_Control priority |
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[beab7329] | 112 | ); |
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| 113 | |
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[24934e36] | 114 | void _Scheduler_priority_SMP_Block( |
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[e1598a6] | 115 | const Scheduler_Control *scheduler, |
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[e382a1b] | 116 | Thread_Control *thread, |
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| 117 | Scheduler_Node *node |
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[24934e36] | 118 | ); |
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[99b3505] | 119 | |
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[ca1e546e] | 120 | void _Scheduler_priority_SMP_Unblock( |
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[e1598a6] | 121 | const Scheduler_Control *scheduler, |
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[72e0bdb] | 122 | Thread_Control *thread, |
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| 123 | Scheduler_Node *node |
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[24934e36] | 124 | ); |
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[99b3505] | 125 | |
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[9c238e1] | 126 | void _Scheduler_priority_SMP_Update_priority( |
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[e1598a6] | 127 | const Scheduler_Control *scheduler, |
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[501043a] | 128 | Thread_Control *the_thread, |
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| 129 | Scheduler_Node *node |
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[24934e36] | 130 | ); |
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[99b3505] | 131 | |
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[351c14d] | 132 | bool _Scheduler_priority_SMP_Ask_for_help( |
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| 133 | const Scheduler_Control *scheduler, |
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| 134 | Thread_Control *the_thread, |
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| 135 | Scheduler_Node *node |
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| 136 | ); |
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| 137 | |
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| 138 | void _Scheduler_priority_SMP_Reconsider_help_request( |
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| 139 | const Scheduler_Control *scheduler, |
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| 140 | Thread_Control *the_thread, |
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| 141 | Scheduler_Node *node |
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| 142 | ); |
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| 143 | |
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| 144 | void _Scheduler_priority_SMP_Withdraw_node( |
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| 145 | const Scheduler_Control *scheduler, |
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| 146 | Thread_Control *the_thread, |
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| 147 | Scheduler_Node *node, |
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| 148 | Thread_Scheduler_state next_state |
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| 149 | ); |
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| 150 | |
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[05ca53d] | 151 | void _Scheduler_priority_SMP_Add_processor( |
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| 152 | const Scheduler_Control *scheduler, |
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| 153 | Thread_Control *idle |
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| 154 | ); |
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| 155 | |
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| 156 | Thread_Control *_Scheduler_priority_SMP_Remove_processor( |
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| 157 | const Scheduler_Control *scheduler, |
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| 158 | struct Per_CPU_Control *cpu |
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| 159 | ); |
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| 160 | |
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[ca1e546e] | 161 | void _Scheduler_priority_SMP_Yield( |
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[e1598a6] | 162 | const Scheduler_Control *scheduler, |
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[2df4abc] | 163 | Thread_Control *thread, |
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| 164 | Scheduler_Node *node |
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[24934e36] | 165 | ); |
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[99b3505] | 166 | |
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| 167 | /** @} */ |
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| 168 | |
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| 169 | #ifdef __cplusplus |
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| 170 | } |
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| 171 | #endif /* __cplusplus */ |
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| 172 | |
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| 173 | #endif /* _RTEMS_SCORE_SCHEDULERPRIORITYSMP_H */ |
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