source: rtems/cpukit/sapi/src/exinit.c @ 4216c57

4.104.114.9
Last change on this file since 4216c57 was 6aa25da, checked in by Joel Sherrill <joel.sherrill@…>, on Dec 4, 2007 at 10:19:19 PM

2007-12-04 Joel Sherrill <joel.sherrill@…>

  • sapi/include/confdefs.h, sapi/include/rtems/config.h, sapi/include/rtems/init.h, sapi/src/exinit.c, score/include/rtems/system.h, score/src/isr.c: Move interrupt_stack_size field from CPU Table to Configuration Table. Eliminate CPU Table from all ports. Delete references to CPU Table in all forms.
  • Property mode set to 100644
File size: 6.6 KB
Line 
1/*
2 *  Initialization Manager
3 *
4 *  COPYRIGHT (c) 1989-2007.
5 *  On-Line Applications Research Corporation (OAR).
6 *
7 *  The license and distribution terms for this file may be
8 *  found in the file LICENSE in this distribution or at
9 *  http://www.rtems.com/license/LICENSE.
10 *
11 *  $Id$
12 */
13
14#if HAVE_CONFIG_H
15#include "config.h"
16#endif
17
18/*
19 *  SCORE_INIT and SAPI_INIT are defined so all of the super core and
20 *  super API data will be included in this object file.
21 */
22
23#define SAPI_INIT
24#define SCORE_INIT
25
26#include <rtems/system.h>
27#include <rtems/config.h>
28#include <rtems/debug.h>
29#include <rtems/extension.h>
30#include <rtems/fatal.h>
31#include <rtems/init.h>
32#include <rtems/io.h>
33#include <rtems/score/sysstate.h>
34
35#include <rtems/score/apiext.h>
36#include <rtems/score/apimutex.h>
37#include <rtems/score/copyrt.h>
38#include <rtems/score/heap.h>
39#include <rtems/score/interr.h>
40#include <rtems/score/isr.h>
41#if defined(RTEMS_MULTIPROCESSING)
42#include <rtems/score/mpci.h>
43#endif
44#include <rtems/score/priority.h>
45#include <rtems/score/thread.h>
46#include <rtems/score/tod.h>
47#include <rtems/score/userext.h>
48#include <rtems/score/watchdog.h>
49#include <rtems/score/wkspace.h>
50
51#include <rtems/sptables.h>
52
53
54#include <rtems/rtems/rtemsapi.h>
55#ifdef RTEMS_POSIX_API
56#include <rtems/posix/posixapi.h>
57#endif
58#ifdef RTEMS_ITRON_API
59#include <rtems/itron/itronapi.h>
60#endif
61
62Objects_Information *_Internal_Objects[ OBJECTS_INTERNAL_CLASSES_LAST + 1 ];
63
64rtems_interrupt_level rtems_initialize_executive_early(
65  rtems_configuration_table *configuration_table
66)
67{
68  rtems_interrupt_level        bsp_level;
69
70  /*
71   *  Dispatching and interrupts are disabled until the end of the
72   *  initialization sequence.  This prevents an inadvertent context
73   *  switch before the executive is initialized.
74   */
75  _ISR_Disable( bsp_level );
76
77  /*
78   *  Make sure the parameters were not NULL.
79   */
80  if ( configuration_table == NULL )
81    _Internal_error_Occurred(
82      INTERNAL_ERROR_CORE,
83      TRUE,
84      INTERNAL_ERROR_NO_CONFIGURATION_TABLE
85    );
86
87  /*
88   *  Provide pointers just for later convenience.
89   */
90  _Configuration_Table    = configuration_table;
91
92  /*
93   * Initialize any target architecture specific support as early as possible
94   */
95  _CPU_Initialize( _Thread_Dispatch );
96
97#if defined(RTEMS_MULTIPROCESSING)
98  /*
99   *  Initialize the system state based on whether this is an MP system.
100   *  In an MP configuration, internally we view single processor
101   *  systems as a very restricted multiprocessor system.
102   */
103  _Configuration_MP_table = configuration_table->User_multiprocessing_table;
104
105  if ( _Configuration_MP_table == NULL ) {
106    _Configuration_MP_table =
107      (void *)&_Initialization_Default_multiprocessing_table;
108    _System_state_Handler_initialization( FALSE );
109  } else {
110    _System_state_Handler_initialization( TRUE );
111  }
112#else
113  _System_state_Handler_initialization( FALSE );
114#endif
115
116  /*
117   *  Do this as early as possible to insure no debugging output
118   *  is even attempted to be printed.
119   */
120
121  _Debug_Manager_initialization();
122
123  _API_extensions_Initialization();
124
125  _Thread_Dispatch_initialization();
126
127  _Workspace_Handler_initialization(
128     (void *)configuration_table->work_space_start,
129     configuration_table->work_space_size
130  );
131
132  _User_extensions_Handler_initialization(
133    configuration_table->number_of_initial_extensions,
134    configuration_table->User_extension_table
135  );
136
137  _ISR_Handler_initialization();
138
139  _Objects_Handler_initialization(
140#if defined(RTEMS_MULTIPROCESSING)
141    _Configuration_MP_table->node,
142    _Configuration_MP_table->maximum_nodes,
143    _Configuration_MP_table->maximum_global_objects
144#endif
145  );
146
147  _Objects_Information_table[OBJECTS_INTERNAL_API] = _Internal_Objects;
148
149  /*
150   * Initialize the internal allocator Mutex
151   */
152  _API_Mutex_Initialization( 1 );
153  _API_Mutex_Allocate( &_RTEMS_Allocator_Mutex );
154
155  _Priority_Handler_initialization();
156
157  _Watchdog_Handler_initialization();
158
159  _TOD_Handler_initialization( configuration_table->microseconds_per_tick );
160
161  _Thread_Handler_initialization(
162    configuration_table->ticks_per_timeslice,
163    configuration_table->maximum_extensions
164#if defined(RTEMS_MULTIPROCESSING)
165    ,
166    _Configuration_MP_table->maximum_proxies
167#endif
168  );
169
170#if defined(RTEMS_MULTIPROCESSING)
171  _MPCI_Handler_initialization(
172    _Configuration_MP_table->User_mpci_table,
173    RTEMS_TIMEOUT
174  );
175#endif
176
177/* MANAGERS */
178
179  _RTEMS_API_Initialize( configuration_table );
180
181  _Extension_Manager_initialization( configuration_table->maximum_extensions );
182
183  _IO_Manager_initialization(
184    configuration_table->Device_driver_table,
185    configuration_table->number_of_device_drivers,
186    configuration_table->maximum_drivers
187  );
188
189#ifdef RTEMS_POSIX_API
190  _POSIX_API_Initialize( configuration_table );
191#endif
192
193#ifdef RTEMS_ITRON_API
194  _ITRON_API_Initialize( configuration_table );
195#endif
196
197  _System_state_Set( SYSTEM_STATE_BEFORE_MULTITASKING );
198
199  /*
200   *  No threads should be created before this point!!!
201   *  _Thread_Executing and _Thread_Heir are not set.
202   *
203   *  At this point all API extensions are in place.  After the call to
204   *  _Thread_Create_idle() _Thread_Executing and _Thread_Heir will be set.
205   */
206
207  _Thread_Create_idle();
208
209  /*
210   *  Scheduling can properly occur now as long as we avoid dispatching.
211   */
212
213  {
214    extern void bsp_pretasking_hook(void);
215    bsp_pretasking_hook();
216  }
217
218#if defined(RTEMS_MULTIPROCESSING)
219  _MPCI_Create_server();
220#endif
221
222  /*
223   *  Run the API and BSPs predriver hook.
224   */
225
226  _API_extensions_Run_predriver();
227
228  {
229    extern void bsp_predriver_hook(void);
230    bsp_predriver_hook();
231  }
232
233  /*
234   *  Initialize all the device drivers and initialize the MPCI layer.
235   *
236   *  NOTE:  The MPCI may be build upon a device driver.
237   */
238
239  _IO_Initialize_all_drivers();
240
241#if defined(RTEMS_MULTIPROCESSING)
242  if ( _System_state_Is_multiprocessing ) {
243    _MPCI_Initialization();
244    _MPCI_Internal_packets_Send_process_packet(
245      MPCI_PACKETS_SYSTEM_VERIFY
246    );
247  }
248#endif
249
250  /*
251   *  Run the APIs and BSPs postdriver hooks.
252   *
253   *  The API extensions are supposed to create user initialization tasks.
254   */
255
256  _API_extensions_Run_postdriver();
257
258  {
259    extern void bsp_postdriver_hook(void);
260    bsp_postdriver_hook();
261  }
262
263  return bsp_level;
264}
265
266void rtems_initialize_executive_late(
267  rtems_interrupt_level bsp_level
268)
269{
270
271  _System_state_Set( SYSTEM_STATE_BEGIN_MULTITASKING );
272
273  _Thread_Start_multitasking();
274
275  /*
276   *  Restore the interrupt level to what the BSP had.  Technically,
277   *  this is unnecessary since the BSP should have all interrupts
278   *  disabled when rtems_initialize_executive is invoked.  But this keeps
279   *  the ISR Disable/Enable calls paired.
280   */
281
282  _ISR_Enable( bsp_level );
283}
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