source: rtems/cpukit/sapi/src/exinit.c @ 0d5a9f1

4.11
Last change on this file since 0d5a9f1 was 0d5a9f1, checked in by Jennifer Averett <Jennifer.Averett@…>, on Apr 27, 2011 at 5:18:59 PM

2011-04-27 Jennifer Averett <Jennifer.Averett@…>

PR 1784

  • sapi/src/exinit.c, score/Makefile.am, score/preinstall.am, score/include/rtems/bspsmp.h, score/src/percpu.c, score/src/smp.c, score/src/threadcreateidle.c: Split bspsmp.h into two files smp.h and bspsmp.h
  • score/include/rtems/score/smp.h: New file.
  • Property mode set to 100644
File size: 6.2 KB
Line 
1/*
2 *  Initialization Manager
3 *
4 *  COPYRIGHT (c) 1989-2011.
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/scheduler.h>
46#include <rtems/score/thread.h>
47#include <rtems/score/tod.h>
48#include <rtems/score/userext.h>
49#include <rtems/score/watchdog.h>
50#include <rtems/score/wkspace.h>
51
52#include <rtems/sptables.h>
53
54
55#include <rtems/rtems/rtemsapi.h>
56#ifdef RTEMS_POSIX_API
57  #include <rtems/posix/posixapi.h>
58#endif
59
60#if defined(RTEMS_SMP)
61  #include <rtems/score/smp.h>
62  #include <rtems/score/percpu.h>
63#endif
64
65Objects_Information *_Internal_Objects[ OBJECTS_INTERNAL_CLASSES_LAST + 1 ];
66
67void rtems_initialize_data_structures(void)
68{
69  /*
70   *  Dispatching and interrupts are disabled until the end of the
71   *  initialization sequence.  This prevents an inadvertent context
72   *  switch before the executive is initialized.
73   *
74   *  WARNING: Interrupts should have been disabled by the BSP and
75   *           are disabled by boot_card().
76   */
77
78  #if defined(RTEMS_MULTIPROCESSING)
79    /*
80     *  Initialize the system state based on whether this is an MP system.
81     *  In an MP configuration, internally we view single processor
82     *  systems as a very restricted multiprocessor system.
83     */
84    _Configuration_MP_table = Configuration.User_multiprocessing_table;
85
86    if ( _Configuration_MP_table == NULL ) {
87      _Configuration_MP_table =
88        (void *)&_Initialization_Default_multiprocessing_table;
89      _System_state_Handler_initialization( FALSE );
90    } else {
91      _System_state_Handler_initialization( TRUE );
92    }
93  #else
94    _System_state_Handler_initialization( FALSE );
95  #endif
96
97  /*
98   * Initialize any target architecture specific support as early as possible
99   */
100  _CPU_Initialize();
101
102  #if defined(RTEMS_MULTIPROCESSING)
103    _Objects_MP_Handler_early_initialization();
104  #endif
105
106  /*
107   *  Do this as early as possible to ensure no debugging output
108   *  is even attempted to be printed.
109   */
110  _Debug_Manager_initialization();
111
112  _API_extensions_Initialization();
113
114  _Thread_Dispatch_initialization();
115
116  /*
117   *  Before this is called, we are not allowed to allocate memory
118   *  from the Workspace because it is not initialized.
119   */
120  _Workspace_Handler_initialization();
121
122  #if defined(RTEMS_SMP)
123    _SMP_Handler_initialize();
124  #endif
125
126  _User_extensions_Handler_initialization();
127  _ISR_Handler_initialization();
128
129  /*
130   * Initialize the internal support API and allocator Mutex
131   */
132  _Objects_Information_table[OBJECTS_INTERNAL_API] = _Internal_Objects;
133
134  _API_Mutex_Initialization( 1 );
135  _API_Mutex_Allocate( &_RTEMS_Allocator_Mutex );
136
137  _Priority_bit_map_Handler_initialization();
138  _Watchdog_Handler_initialization();
139  _TOD_Handler_initialization();
140
141  _Thread_Handler_initialization();
142
143  _Scheduler_Handler_initialization();
144
145  #if defined(RTEMS_MULTIPROCESSING)
146    _Objects_MP_Handler_initialization();
147    _MPCI_Handler_initialization( RTEMS_TIMEOUT );
148  #endif
149
150/* MANAGERS */
151
152  _RTEMS_API_Initialize();
153
154  _Extension_Manager_initialization();
155
156  _IO_Manager_initialization();
157
158  #ifdef RTEMS_POSIX_API
159    _POSIX_API_Initialize();
160  #endif
161
162  /*
163   * Discover and initialize the secondary cores in an SMP system.
164   */
165  #if defined(RTEMS_SMP)
166    _SMP_Processor_count =
167        bsp_smp_initialize( rtems_configuration_smp_maximum_processors );
168  #endif
169
170  _System_state_Set( SYSTEM_STATE_BEFORE_MULTITASKING );
171
172  /*
173   *  No threads should be created before this point!!!
174   *  _Thread_Executing and _Thread_Heir are not set.
175   *
176   *  At this point all API extensions are in place.  After the call to
177   *  _Thread_Create_idle() _Thread_Executing and _Thread_Heir will be set.
178   */
179  _Thread_Create_idle();
180
181  /*
182   *  Scheduling can properly occur now as long as we avoid dispatching.
183   */
184}
185
186void rtems_initialize_before_drivers(void)
187{
188
189  #if defined(RTEMS_MULTIPROCESSING)
190    _MPCI_Create_server();
191  #endif
192
193  #if defined(FUNCTIONALITY_NOT_CURRENTLY_USED_BY_ANY_API)
194    /*
195     *  Run the API and BSPs predriver hook.
196     */
197    _API_extensions_Run_predriver();
198  #endif
199}
200
201void rtems_initialize_device_drivers(void)
202{
203  /*
204   *  Initialize all the device drivers and initialize the MPCI layer.
205   *
206   *  NOTE:  The MPCI may be build upon a device driver.
207   */
208
209  _IO_Initialize_all_drivers();
210
211  #if defined(RTEMS_MULTIPROCESSING)
212    if ( _System_state_Is_multiprocessing ) {
213      _MPCI_Initialization();
214      _MPCI_Internal_packets_Send_process_packet(
215        MPCI_PACKETS_SYSTEM_VERIFY
216      );
217    }
218  #endif
219
220  /*
221   *  Run the APIs and BSPs postdriver hooks.
222   *
223   *  The API extensions are supposed to create user initialization tasks.
224   */
225  _API_extensions_Run_postdriver();
226}
227
228void rtems_initialize_start_multitasking(void)
229{
230
231  _System_state_Set( SYSTEM_STATE_BEGIN_MULTITASKING );
232
233  _Thread_Start_multitasking();
234
235  /*******************************************************************
236   *******************************************************************
237   *******************************************************************
238   ******                 APPLICATION RUNS HERE                 ******
239   ******            RETURNS WHEN SYSTEM IS SHUT DOWN           ******
240   *******************************************************************
241   *******************************************************************
242   *******************************************************************/
243}
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