source: rtems/cpukit/sapi/src/exinit.c @ 9221838

4.104.114.9
Last change on this file since 9221838 was 9221838, checked in by Joel Sherrill <joel.sherrill@…>, on Nov 28, 2007 at 10:04:31 PM

2007-11-28 Joel Sherrill <joel.sherrill@…>

  • sapi/src/exinit.c, score/include/rtems/score/object.h, score/include/rtems/score/thread.h, score/src/object.c, score/src/thread.c: Conditionally compile out more code that is specific to multiprocessor configurations.
  • Property mode set to 100644
File size: 6.8 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  rtems_cpu_table           *cpu_table
67)
68{
69  rtems_interrupt_level        bsp_level;
70
71  /*
72   *  Dispatching and interrupts are disabled until the end of the
73   *  initialization sequence.  This prevents an inadvertent context
74   *  switch before the executive is initialized.
75   */
76  _ISR_Disable( bsp_level );
77
78  /*
79   *  Make sure the parameters were not NULL.
80   */
81  if ( configuration_table == NULL )
82    _Internal_error_Occurred(
83      INTERNAL_ERROR_CORE,
84      TRUE,
85      INTERNAL_ERROR_NO_CONFIGURATION_TABLE
86    );
87
88  if ( cpu_table == NULL )
89    _Internal_error_Occurred(
90      INTERNAL_ERROR_CORE,
91      TRUE,
92      INTERNAL_ERROR_NO_CPU_TABLE
93    );
94
95#if defined(RTEMS_MULTIPROCESSING)
96  /*
97   *  Initialize the system state based on whether this is an MP system.
98   *  In an MP configuration, internally we view single processor
99   *  systems as a very restricted multiprocessor system.
100   */
101  _Configuration_MP_table = configuration_table->User_multiprocessing_table;
102
103  if ( _Configuration_MP_table == NULL ) {
104    _Configuration_MP_table =
105      (void *)&_Initialization_Default_multiprocessing_table;
106    _System_state_Handler_initialization( FALSE );
107  } else {
108    _System_state_Handler_initialization( TRUE );
109  }
110#else
111  _System_state_Handler_initialization( FALSE );
112#endif
113
114  /*
115   *  Grab our own copy of the user's CPU table.
116   */
117  _CPU_Table = *cpu_table;
118
119  /*
120   *  Provide pointers just for later convenience.
121   */
122  _Configuration_Table    = configuration_table;
123
124  _CPU_Initialize( cpu_table, _Thread_Dispatch );
125
126  /*
127   *  Do this as early as possible to insure no debugging output
128   *  is even attempted to be printed.
129   */
130
131  _Debug_Manager_initialization();
132
133  _API_extensions_Initialization();
134
135  _Thread_Dispatch_initialization();
136
137  _Workspace_Handler_initialization(
138     (void *)configuration_table->work_space_start,
139     configuration_table->work_space_size
140  );
141
142  _User_extensions_Handler_initialization(
143    configuration_table->number_of_initial_extensions,
144    configuration_table->User_extension_table
145  );
146
147  _ISR_Handler_initialization();
148
149  _Objects_Handler_initialization(
150#if defined(RTEMS_MULTIPROCESSING)
151    _Configuration_MP_table->node,
152    _Configuration_MP_table->maximum_nodes,
153    _Configuration_MP_table->maximum_global_objects
154#endif
155  );
156
157  _Objects_Information_table[OBJECTS_INTERNAL_API] = _Internal_Objects;
158
159  /*
160   * Initialize the internal allocator Mutex
161   */
162  _API_Mutex_Initialization( 1 );
163  _API_Mutex_Allocate( &_RTEMS_Allocator_Mutex );
164
165  _Priority_Handler_initialization();
166
167  _Watchdog_Handler_initialization();
168
169  _TOD_Handler_initialization( configuration_table->microseconds_per_tick );
170
171  _Thread_Handler_initialization(
172    configuration_table->ticks_per_timeslice,
173    configuration_table->maximum_extensions
174#if defined(RTEMS_MULTIPROCESSING)
175    ,
176    multiprocessing_table->maximum_proxies
177#endif
178  );
179
180#if defined(RTEMS_MULTIPROCESSING)
181  _MPCI_Handler_initialization(
182    multiprocessing_table->User_mpci_table,
183    RTEMS_TIMEOUT
184  );
185#endif
186
187/* MANAGERS */
188
189  _RTEMS_API_Initialize( configuration_table );
190
191  _Extension_Manager_initialization( configuration_table->maximum_extensions );
192
193  _IO_Manager_initialization(
194    configuration_table->Device_driver_table,
195    configuration_table->number_of_device_drivers,
196    configuration_table->maximum_drivers
197  );
198
199#ifdef RTEMS_POSIX_API
200  _POSIX_API_Initialize( configuration_table );
201#endif
202
203#ifdef RTEMS_ITRON_API
204  _ITRON_API_Initialize( configuration_table );
205#endif
206
207  _System_state_Set( SYSTEM_STATE_BEFORE_MULTITASKING );
208
209  /*
210   *  No threads should be created before this point!!!
211   *  _Thread_Executing and _Thread_Heir are not set.
212   *
213   *  At this point all API extensions are in place.  After the call to
214   *  _Thread_Create_idle() _Thread_Executing and _Thread_Heir will be set.
215   */
216
217  _Thread_Create_idle();
218
219  /*
220   *  Scheduling can properly occur now as long as we avoid dispatching.
221   */
222
223  if ( cpu_table->pretasking_hook )
224    (*cpu_table->pretasking_hook)();
225
226#if defined(RTEMS_MULTIPROCESSING)
227  _MPCI_Create_server();
228#endif
229
230  /*
231   *  Run the API and BSPs predriver hook.
232   */
233
234  _API_extensions_Run_predriver();
235
236  if ( _CPU_Table.predriver_hook )
237    (*_CPU_Table.predriver_hook)();
238
239  /*
240   *  Initialize all the device drivers and initialize the MPCI layer.
241   *
242   *  NOTE:  The MPCI may be build upon a device driver.
243   */
244
245  _IO_Initialize_all_drivers();
246
247#if defined(RTEMS_MULTIPROCESSING)
248  if ( _System_state_Is_multiprocessing ) {
249    _MPCI_Initialization();
250    _MPCI_Internal_packets_Send_process_packet(
251      MPCI_PACKETS_SYSTEM_VERIFY
252    );
253  }
254#endif
255
256  /*
257   *  Run the APIs and BSPs postdriver hooks.
258   *
259   *  The API extensions are supposed to create user initialization tasks.
260   */
261
262  _API_extensions_Run_postdriver();
263
264  if ( _CPU_Table.postdriver_hook )
265    (*_CPU_Table.postdriver_hook)();
266
267  return bsp_level;
268}
269
270void rtems_initialize_executive_late(
271  rtems_interrupt_level bsp_level
272)
273{
274
275  _System_state_Set( SYSTEM_STATE_BEGIN_MULTITASKING );
276
277  _Thread_Start_multitasking();
278
279  /*
280   *  Restore the interrupt level to what the BSP had.  Technically,
281   *  this is unnecessary since the BSP should have all interrupts
282   *  disabled when rtems_initialize_executive is invoked.  But this keeps
283   *  the ISR Disable/Enable calls paired.
284   */
285
286  _ISR_Enable( bsp_level );
287}
Note: See TracBrowser for help on using the repository browser.