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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10 | * Copyright (c) 2013-2014 embedded brains GmbH. All rights reserved. |
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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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20 | * http://www.rtems.org/license/LICENSE. |
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21 | */ |
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22 | |
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23 | #ifndef _RTEMS_SCORE_SCHEDULERPRIORITYSMPIMPL_H |
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24 | #define _RTEMS_SCORE_SCHEDULERPRIORITYSMPIMPL_H |
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25 | |
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26 | #include <rtems/score/schedulerprioritysmp.h> |
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27 | #include <rtems/score/schedulerpriorityimpl.h> |
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28 | #include <rtems/score/schedulersimpleimpl.h> |
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29 | #include <rtems/score/schedulersmpimpl.h> |
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30 | |
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31 | #ifdef __cplusplus |
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32 | extern "C" { |
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33 | #endif /* __cplusplus */ |
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34 | |
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35 | /** |
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36 | * @ingroup ScoreSchedulerPrioritySMP |
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37 | * @{ |
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38 | */ |
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39 | |
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40 | static inline Scheduler_priority_SMP_Context *_Scheduler_priority_SMP_Get_self( |
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41 | Scheduler_Context *context |
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42 | ) |
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43 | { |
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44 | return (Scheduler_priority_SMP_Context *) context; |
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45 | } |
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46 | |
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47 | static inline Scheduler_priority_SMP_Node *_Scheduler_priority_SMP_Thread_get_node( |
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48 | Thread_Control *thread |
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49 | ) |
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50 | { |
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51 | return (Scheduler_priority_SMP_Node *) _Thread_Scheduler_get_home_node( thread ); |
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52 | } |
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53 | |
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54 | static inline Scheduler_priority_SMP_Node * |
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55 | _Scheduler_priority_SMP_Node_downcast( Scheduler_Node *node ) |
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56 | { |
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57 | return (Scheduler_priority_SMP_Node *) node; |
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58 | } |
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59 | |
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60 | static inline bool _Scheduler_priority_SMP_Has_ready( Scheduler_Context *context ) |
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61 | { |
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62 | Scheduler_priority_SMP_Context *self = |
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63 | _Scheduler_priority_SMP_Get_self( context ); |
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64 | |
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65 | return !_Priority_bit_map_Is_empty( &self->Bit_map ); |
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66 | } |
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67 | |
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68 | static inline void _Scheduler_priority_SMP_Move_from_scheduled_to_ready( |
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69 | Scheduler_Context *context, |
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70 | Scheduler_Node *scheduled_to_ready |
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71 | ) |
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72 | { |
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73 | Scheduler_priority_SMP_Context *self = |
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74 | _Scheduler_priority_SMP_Get_self( context ); |
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75 | Scheduler_priority_SMP_Node *node = |
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76 | _Scheduler_priority_SMP_Node_downcast( scheduled_to_ready ); |
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77 | |
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78 | _Chain_Extract_unprotected( &node->Base.Base.Node.Chain ); |
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79 | _Scheduler_priority_Ready_queue_enqueue_first( |
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80 | &node->Base.Base.Node.Chain, |
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81 | &node->Ready_queue, |
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82 | &self->Bit_map |
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83 | ); |
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84 | } |
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85 | |
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86 | static inline void _Scheduler_priority_SMP_Move_from_ready_to_scheduled( |
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87 | Scheduler_Context *context, |
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88 | Scheduler_Node *ready_to_scheduled |
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89 | ) |
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90 | { |
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91 | Scheduler_priority_SMP_Context *self; |
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92 | Scheduler_priority_SMP_Node *node; |
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93 | Priority_Control priority; |
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94 | |
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95 | self = _Scheduler_priority_SMP_Get_self( context ); |
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96 | node = _Scheduler_priority_SMP_Node_downcast( ready_to_scheduled ); |
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97 | |
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98 | _Scheduler_priority_Ready_queue_extract( |
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99 | &node->Base.Base.Node.Chain, |
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100 | &node->Ready_queue, |
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101 | &self->Bit_map |
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102 | ); |
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103 | priority = node->Base.priority; |
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104 | _Chain_Insert_ordered_unprotected( |
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105 | &self->Base.Scheduled, |
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106 | &node->Base.Base.Node.Chain, |
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107 | &priority, |
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108 | _Scheduler_SMP_Insert_priority_fifo_order |
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109 | ); |
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110 | } |
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111 | |
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112 | static inline void _Scheduler_priority_SMP_Insert_ready_lifo( |
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113 | Scheduler_Context *context, |
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114 | Scheduler_Node *thread |
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115 | ) |
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116 | { |
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117 | Scheduler_priority_SMP_Context *self = |
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118 | _Scheduler_priority_SMP_Get_self( context ); |
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119 | Scheduler_priority_SMP_Node *node = |
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120 | _Scheduler_priority_SMP_Node_downcast( thread ); |
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121 | |
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122 | _Scheduler_priority_Ready_queue_enqueue( |
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123 | &node->Base.Base.Node.Chain, |
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124 | &node->Ready_queue, |
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125 | &self->Bit_map |
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126 | ); |
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127 | } |
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128 | |
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129 | static inline void _Scheduler_priority_SMP_Insert_ready_fifo( |
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130 | Scheduler_Context *context, |
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131 | Scheduler_Node *thread |
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132 | ) |
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133 | { |
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134 | Scheduler_priority_SMP_Context *self = |
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135 | _Scheduler_priority_SMP_Get_self( context ); |
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136 | Scheduler_priority_SMP_Node *node = |
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137 | _Scheduler_priority_SMP_Node_downcast( thread ); |
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138 | |
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139 | _Scheduler_priority_Ready_queue_enqueue_first( |
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140 | &node->Base.Base.Node.Chain, |
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141 | &node->Ready_queue, |
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142 | &self->Bit_map |
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143 | ); |
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144 | } |
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145 | |
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146 | static inline void _Scheduler_priority_SMP_Extract_from_ready( |
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147 | Scheduler_Context *context, |
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148 | Scheduler_Node *thread |
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149 | ) |
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150 | { |
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151 | Scheduler_priority_SMP_Context *self = |
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152 | _Scheduler_priority_SMP_Get_self( context ); |
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153 | Scheduler_priority_SMP_Node *node = |
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154 | _Scheduler_priority_SMP_Node_downcast( thread ); |
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155 | |
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156 | _Scheduler_priority_Ready_queue_extract( |
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157 | &node->Base.Base.Node.Chain, |
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158 | &node->Ready_queue, |
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159 | &self->Bit_map |
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160 | ); |
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161 | } |
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162 | |
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163 | static inline void _Scheduler_priority_SMP_Do_update( |
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164 | Scheduler_Context *context, |
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165 | Scheduler_Node *node_to_update, |
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166 | Priority_Control new_priority |
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167 | ) |
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168 | { |
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169 | Scheduler_priority_SMP_Context *self = |
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170 | _Scheduler_priority_SMP_Get_self( context ); |
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171 | Scheduler_priority_SMP_Node *node = |
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172 | _Scheduler_priority_SMP_Node_downcast( node_to_update ); |
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173 | |
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174 | _Scheduler_SMP_Node_update_priority( &node->Base, new_priority ); |
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175 | _Scheduler_priority_Ready_queue_update( |
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176 | &node->Ready_queue, |
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177 | new_priority, |
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178 | &self->Bit_map, |
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179 | &self->Ready[ 0 ] |
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180 | ); |
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181 | } |
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182 | |
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183 | /** @} */ |
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184 | |
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185 | #ifdef __cplusplus |
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186 | } |
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187 | #endif /* __cplusplus */ |
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188 | |
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189 | #endif /* _RTEMS_SCORE_SCHEDULERPRIORITYSMPIMPL_H */ |
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