RTEMS
scheduler.h
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1 
7 /*
8  * Copyright (c) 2014, 2018 embedded brains GmbH. All rights reserved.
9  *
10  * embedded brains GmbH
11  * Dornierstr. 4
12  * 82178 Puchheim
13  * Germany
14  * <rtems@embedded-brains.de>
15  *
16  * The license and distribution terms for this file may be
17  * found in the file LICENSE in this distribution or at
18  * http://www.rtems.org/license/LICENSE.
19  */
20 
21 #ifndef _RTEMS_SAPI_SCHEDULER_H
22 #define _RTEMS_SAPI_SCHEDULER_H
23 
24 #include <rtems/score/scheduler.h>
25 
26 #define SCHEDULER_CONTEXT_NAME( name ) \
27  _Configuration_Scheduler_ ## name
28 
29 #if defined(RTEMS_SMP)
30  #define SCHEDULER_CONTROL_IS_NON_PREEMPT_MODE_SUPPORTED( value ) \
31  , value
32 #else
33  #define SCHEDULER_CONTROL_IS_NON_PREEMPT_MODE_SUPPORTED( value )
34 #endif
35 
36 #if defined(RTEMS_SMP)
37  /* This object doesn't exist and indicates a configuration error */
38  extern const Scheduler_Control RTEMS_SCHEDULER_INVALID_INDEX;
39 
40  #define RTEMS_SCHEDULER_ASSIGN_DEFAULT \
41  SCHEDULER_ASSIGN_DEFAULT
42 
43  #define RTEMS_SCHEDULER_ASSIGN_PROCESSOR_OPTIONAL \
44  SCHEDULER_ASSIGN_PROCESSOR_OPTIONAL
45 
46  #define RTEMS_SCHEDULER_ASSIGN_PROCESSOR_MANDATORY \
47  SCHEDULER_ASSIGN_PROCESSOR_MANDATORY
48 
49  #define RTEMS_SCHEDULER_ASSIGN( index, attr ) \
50  { \
51  ( index ) < RTEMS_ARRAY_SIZE( _Scheduler_Table ) ? \
52  &_Scheduler_Table[ ( index ) ] : &RTEMS_SCHEDULER_INVALID_INDEX, \
53  ( attr ) \
54  }
55 
56  #define RTEMS_SCHEDULER_ASSIGN_NO_SCHEDULER { NULL, 0 }
57 #endif
58 
59 /*
60  * This file should be only included in the context of <rtems/confdefs.h>.
61  * Define the scheduler configuration macros only in case the corresponding
62  * configure symbol is defined. This is necessary to prevent invalid workspace
63  * size estimates since we have to account for the per-thread scheduler
64  * information.
65  */
66 
67 #ifdef CONFIGURE_SCHEDULER_CBS
68  #include <rtems/score/schedulercbs.h>
69 
70  #define SCHEDULER_CBS_CONTEXT_NAME( name ) \
71  SCHEDULER_CONTEXT_NAME( CBS_ ## name )
72 
73  #define RTEMS_SCHEDULER_CBS( name ) \
74  static Scheduler_EDF_Context SCHEDULER_CBS_CONTEXT_NAME( name )
75 
76  #define RTEMS_SCHEDULER_TABLE_CBS( name, obj_name ) \
77  { \
78  &SCHEDULER_CBS_CONTEXT_NAME( name ).Base, \
79  SCHEDULER_CBS_ENTRY_POINTS, \
80  SCHEDULER_CBS_MAXIMUM_PRIORITY, \
81  ( obj_name ) \
82  SCHEDULER_CONTROL_IS_NON_PREEMPT_MODE_SUPPORTED( true ) \
83  }
84 
85  /* Provided for backward compatibility */
86 
87  #define RTEMS_SCHEDULER_CONTEXT_CBS( name ) \
88  RTEMS_SCHEDULER_CBS( name )
89 
90  #define RTEMS_SCHEDULER_CONTROL_CBS( name, obj_name ) \
91  RTEMS_SCHEDULER_TABLE_CBS( name, obj_name )
92 #endif
93 
94 #ifdef CONFIGURE_SCHEDULER_EDF
95  #include <rtems/score/scheduleredf.h>
96 
97  #define SCHEDULER_EDF_CONTEXT_NAME( name ) \
98  SCHEDULER_CONTEXT_NAME( EDF_ ## name )
99 
100  #define RTEMS_SCHEDULER_EDF( name ) \
101  static Scheduler_EDF_Context SCHEDULER_EDF_CONTEXT_NAME( name )
102 
103  #define RTEMS_SCHEDULER_TABLE_EDF( name, obj_name ) \
104  { \
105  &SCHEDULER_EDF_CONTEXT_NAME( name ).Base, \
106  SCHEDULER_EDF_ENTRY_POINTS, \
107  SCHEDULER_EDF_MAXIMUM_PRIORITY, \
108  ( obj_name ) \
109  SCHEDULER_CONTROL_IS_NON_PREEMPT_MODE_SUPPORTED( true ) \
110  }
111 
112  /* Provided for backward compatibility */
113 
114  #define RTEMS_SCHEDULER_CONTEXT_EDF( name ) \
115  RTEMS_SCHEDULER_EDF( name )
116 
117  #define RTEMS_SCHEDULER_CONTROL_EDF( name, obj_name ) \
118  RTEMS_SCHEDULER_TABLE_EDF( name, obj_name )
119 #endif
120 
121 #ifdef CONFIGURE_SCHEDULER_EDF_SMP
122  #include <rtems/score/scheduleredfsmp.h>
123 
124  #ifndef CONFIGURE_MAXIMUM_PROCESSORS
125  #error "CONFIGURE_MAXIMUM_PROCESSORS must be defined to configure the EDF SMP scheduler"
126  #endif
127 
128  #define SCHEDULER_EDF_SMP_CONTEXT_NAME( name ) \
129  SCHEDULER_CONTEXT_NAME( EDF_SMP_ ## name )
130 
131  #define RTEMS_SCHEDULER_EDF_SMP( name ) \
132  static struct { \
133  Scheduler_EDF_SMP_Context Base; \
134  Scheduler_EDF_SMP_Ready_queue Ready[ CONFIGURE_MAXIMUM_PROCESSORS + 1 ]; \
135  } SCHEDULER_EDF_SMP_CONTEXT_NAME( name )
136 
137  #define RTEMS_SCHEDULER_TABLE_EDF_SMP( name, obj_name ) \
138  { \
139  &SCHEDULER_EDF_SMP_CONTEXT_NAME( name ).Base.Base.Base, \
140  SCHEDULER_EDF_SMP_ENTRY_POINTS, \
141  SCHEDULER_EDF_MAXIMUM_PRIORITY, \
142  ( obj_name ) \
143  SCHEDULER_CONTROL_IS_NON_PREEMPT_MODE_SUPPORTED( false ) \
144  }
145 
146  /* Provided for backward compatibility */
147 
148  #define RTEMS_SCHEDULER_CONTEXT_EDF_SMP( name, max_cpu_count ) \
149  RTEMS_SCHEDULER_EDF_SMP( name )
150 
151  #define RTEMS_SCHEDULER_CONTROL_EDF_SMP( name, obj_name ) \
152  RTEMS_SCHEDULER_TABLE_EDF_SMP( name, obj_name )
153 #endif
154 
155 #ifdef CONFIGURE_SCHEDULER_PRIORITY
156  #include <rtems/score/schedulerpriority.h>
157 
158  #define SCHEDULER_PRIORITY_CONTEXT_NAME( name ) \
159  SCHEDULER_CONTEXT_NAME( priority_ ## name )
160 
161  #define RTEMS_SCHEDULER_PRIORITY( name, prio_count ) \
162  static struct { \
163  Scheduler_priority_Context Base; \
164  Chain_Control Ready[ ( prio_count ) ]; \
165  } SCHEDULER_PRIORITY_CONTEXT_NAME( name )
166 
167  #define RTEMS_SCHEDULER_TABLE_PRIORITY( name, obj_name ) \
168  { \
169  &SCHEDULER_PRIORITY_CONTEXT_NAME( name ).Base.Base, \
170  SCHEDULER_PRIORITY_ENTRY_POINTS, \
171  RTEMS_ARRAY_SIZE( \
172  SCHEDULER_PRIORITY_CONTEXT_NAME( name ).Ready \
173  ) - 1, \
174  ( obj_name ) \
175  SCHEDULER_CONTROL_IS_NON_PREEMPT_MODE_SUPPORTED( true ) \
176  }
177 
178  /* Provided for backward compatibility */
179 
180  #define RTEMS_SCHEDULER_CONTEXT_PRIORITY( name, prio_count ) \
181  RTEMS_SCHEDULER_PRIORITY( name, prio_count )
182 
183  #define RTEMS_SCHEDULER_CONTROL_PRIORITY( name, obj_name ) \
184  RTEMS_SCHEDULER_TABLE_PRIORITY( name, obj_name )
185 #endif
186 
187 #ifdef CONFIGURE_SCHEDULER_PRIORITY_AFFINITY_SMP
188  #include <rtems/score/schedulerpriorityaffinitysmp.h>
189 
190  #define SCHEDULER_PRIORITY_AFFINITY_SMP_CONTEXT_NAME( name ) \
191  SCHEDULER_CONTEXT_NAME( priority_affinity_SMP_ ## name )
192 
193  #define RTEMS_SCHEDULER_PRIORITY_AFFINITY_SMP( name, prio_count ) \
194  static struct { \
195  Scheduler_priority_SMP_Context Base; \
196  Chain_Control Ready[ ( prio_count ) ]; \
197  } SCHEDULER_PRIORITY_AFFINITY_SMP_CONTEXT_NAME( name )
198 
199  #define RTEMS_SCHEDULER_TABLE_PRIORITY_AFFINITY_SMP( name, obj_name ) \
200  { \
201  &SCHEDULER_PRIORITY_AFFINITY_SMP_CONTEXT_NAME( name ).Base.Base.Base, \
202  SCHEDULER_PRIORITY_AFFINITY_SMP_ENTRY_POINTS, \
203  RTEMS_ARRAY_SIZE( \
204  SCHEDULER_PRIORITY_AFFINITY_SMP_CONTEXT_NAME( name ).Ready \
205  ) - 1, \
206  ( obj_name ) \
207  SCHEDULER_CONTROL_IS_NON_PREEMPT_MODE_SUPPORTED( false ) \
208  }
209 
210  /* Provided for backward compatibility */
211 
212  #define RTEMS_SCHEDULER_CONTEXT_PRIORITY_AFFINITY_SMP( name, prio_count ) \
213  RTEMS_SCHEDULER_PRIORITY_AFFINITY_SMP( name, prio_count )
214 
215  #define RTEMS_SCHEDULER_CONTROL_PRIORITY_AFFINITY_SMP( name, obj_name ) \
216  RTEMS_SCHEDULER_TABLE_PRIORITY_AFFINITY_SMP( name, obj_name )
217 #endif
218 
219 #ifdef CONFIGURE_SCHEDULER_PRIORITY_SMP
220  #include <rtems/score/schedulerprioritysmp.h>
221 
222  #define SCHEDULER_PRIORITY_SMP_CONTEXT_NAME( name ) \
223  SCHEDULER_CONTEXT_NAME( priority_SMP_ ## name )
224 
225  #define RTEMS_SCHEDULER_PRIORITY_SMP( name, prio_count ) \
226  static struct { \
227  Scheduler_priority_SMP_Context Base; \
228  Chain_Control Ready[ ( prio_count ) ]; \
229  } SCHEDULER_PRIORITY_SMP_CONTEXT_NAME( name )
230 
231  #define RTEMS_SCHEDULER_TABLE_PRIORITY_SMP( name, obj_name ) \
232  { \
233  &SCHEDULER_PRIORITY_SMP_CONTEXT_NAME( name ).Base.Base.Base, \
234  SCHEDULER_PRIORITY_SMP_ENTRY_POINTS, \
235  RTEMS_ARRAY_SIZE( \
236  SCHEDULER_PRIORITY_SMP_CONTEXT_NAME( name ).Ready \
237  ) - 1, \
238  ( obj_name ) \
239  SCHEDULER_CONTROL_IS_NON_PREEMPT_MODE_SUPPORTED( false ) \
240  }
241 
242  /* Provided for backward compatibility */
243 
244  #define RTEMS_SCHEDULER_CONTEXT_PRIORITY_SMP( name, prio_count ) \
245  RTEMS_SCHEDULER_PRIORITY_SMP( name, prio_count )
246 
247  #define RTEMS_SCHEDULER_CONTROL_PRIORITY_SMP( name, obj_name ) \
248  RTEMS_SCHEDULER_TABLE_PRIORITY_SMP( name, obj_name )
249 #endif
250 
251 #ifdef CONFIGURE_SCHEDULER_STRONG_APA
252  #include <rtems/score/schedulerstrongapa.h>
253 
254  #define SCHEDULER_STRONG_APA_CONTEXT_NAME( name ) \
255  SCHEDULER_CONTEXT_NAME( strong_APA_ ## name )
256 
257  #define RTEMS_SCHEDULER_STRONG_APA( name, prio_count ) \
258  static struct { \
259  Scheduler_strong_APA_Context Base; \
260  Chain_Control Ready[ ( prio_count ) ]; \
261  } SCHEDULER_STRONG_APA_CONTEXT_NAME( name )
262 
263  #define RTEMS_SCHEDULER_TABLE_STRONG_APA( name, obj_name ) \
264  { \
265  &SCHEDULER_STRONG_APA_CONTEXT_NAME( name ).Base.Base.Base, \
266  SCHEDULER_STRONG_APA_ENTRY_POINTS, \
267  RTEMS_ARRAY_SIZE( \
268  SCHEDULER_STRONG_APA_CONTEXT_NAME( name ).Ready \
269  ) - 1, \
270  ( obj_name ) \
271  SCHEDULER_CONTROL_IS_NON_PREEMPT_MODE_SUPPORTED( false ) \
272  }
273 
274  /* Provided for backward compatibility */
275 
276  #define RTEMS_SCHEDULER_CONTEXT_STRONG_APA( name, prio_count ) \
277  RTEMS_SCHEDULER_STRONG_APA( name, prio_count )
278 
279  #define RTEMS_SCHEDULER_CONTROL_STRONG_APA( name, obj_name ) \
280  RTEMS_SCHEDULER_TABLE_STRONG_APA( name, obj_name )
281 #endif
282 
283 #ifdef CONFIGURE_SCHEDULER_SIMPLE
284  #include <rtems/score/schedulersimple.h>
285 
286  #define SCHEDULER_SIMPLE_CONTEXT_NAME( name ) \
287  SCHEDULER_CONTEXT_NAME( simple_ ## name )
288 
289  #define RTEMS_SCHEDULER_SIMPLE( name ) \
290  static Scheduler_simple_Context \
291  SCHEDULER_SIMPLE_CONTEXT_NAME( name )
292 
293  #define RTEMS_SCHEDULER_TABLE_SIMPLE( name, obj_name ) \
294  { \
295  &SCHEDULER_SIMPLE_CONTEXT_NAME( name ).Base, \
296  SCHEDULER_SIMPLE_ENTRY_POINTS, \
297  SCHEDULER_SIMPLE_MAXIMUM_PRIORITY, \
298  ( obj_name ) \
299  SCHEDULER_CONTROL_IS_NON_PREEMPT_MODE_SUPPORTED( true ) \
300  }
301 
302  /* Provided for backward compatibility */
303 
304  #define RTEMS_SCHEDULER_CONTEXT_SIMPLE( name ) \
305  RTEMS_SCHEDULER_SIMPLE( name )
306 
307  #define RTEMS_SCHEDULER_CONTROL_SIMPLE( name, obj_name ) \
308  RTEMS_SCHEDULER_TABLE_SIMPLE( name, obj_name )
309 #endif
310 
311 #ifdef CONFIGURE_SCHEDULER_SIMPLE_SMP
312  #include <rtems/score/schedulersimplesmp.h>
313 
314  #define SCHEDULER_SIMPLE_SMP_CONTEXT_NAME( name ) \
315  SCHEDULER_CONTEXT_NAME( simple_SMP_ ## name )
316 
317  #define RTEMS_SCHEDULER_SIMPLE_SMP( name ) \
318  static Scheduler_simple_SMP_Context \
319  SCHEDULER_SIMPLE_SMP_CONTEXT_NAME( name )
320 
321  #define RTEMS_SCHEDULER_TABLE_SIMPLE_SMP( name, obj_name ) \
322  { \
323  &SCHEDULER_SIMPLE_SMP_CONTEXT_NAME( name ).Base.Base, \
324  SCHEDULER_SIMPLE_SMP_ENTRY_POINTS, \
325  SCHEDULER_SIMPLE_SMP_MAXIMUM_PRIORITY, \
326  ( obj_name ) \
327  SCHEDULER_CONTROL_IS_NON_PREEMPT_MODE_SUPPORTED( false ) \
328  }
329 
330  /* Provided for backward compatibility */
331 
332  #define RTEMS_SCHEDULER_CONTEXT_SIMPLE_SMP( name ) \
333  RTEMS_SCHEDULER_SIMPLE_SMP( name )
334 
335  #define RTEMS_SCHEDULER_CONTROL_SIMPLE_SMP( name, obj_name ) \
336  RTEMS_SCHEDULER_TABLE_SIMPLE_SMP( name, obj_name )
337 #endif
338 
339 #endif /* _RTEMS_SAPI_SCHEDULER_H */
schedulerpriority.h
Thread Manipulation with the Priority-Based Scheduler.
scheduleredf.h
Data Related to the Manipulation of Threads for the EDF Scheduler.
schedulersimple.h
Manipulation of Threads Simple-Priority-Based Ready Queue.
scheduleredfsmp.h
EDF SMP Scheduler API.
_Scheduler_Control
Scheduler control.
Definition: scheduler.h:264
scheduler.h
Constants and Structures Associated with the Scheduler.
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