source: rtems/testsuites/smptests/smp04/init.c @ cf288c38

4.115
Last change on this file since cf288c38 was cf288c38, checked in by Jennifer Averett <Jennifer.Averett@…>, on Jul 29, 2011 at 12:29:34 PM

2011-07-29 Jennifer Averett <Jennifer.Averett@…>

  • smp01/init.c, smp02/init.c, smp02/tasks.c, smp03/init.c, smp03/tasks.c, smp04/Makefile.am, smp04/init.c, smp05/init.c, smp06/init.c, smp07/init.c, smp08/init.c: Cleaned up tests and fixed some print statement problems.
  • smp04/tasks.c: Removed.
  • Property mode set to 100644
File size: 3.2 KB
Line 
1/*
2 *  COPYRIGHT (c) 1989-2011.
3 *  On-Line Applications Research Corporation (OAR).
4 *
5 *  The license and distribution terms for this file may be
6 *  found in the file LICENSE in this distribution or at
7 *  http://www.rtems.com/license/LICENSE.
8 *
9 *  $Id$
10 */
11
12#ifdef HAVE_CONFIG_H
13#include "config.h"
14#endif
15
16#define CONFIGURE_INIT
17#include "system.h"
18
19#include <stdio.h>
20
21
22void Loop() {
23  volatile int i;
24
25  for (i=0; i<500000; i++);
26}
27
28rtems_task Test_task(
29  rtems_task_argument task_index
30)
31{
32  int               cpu_num;
33
34  cpu_num = bsp_smp_processor_id();
35  locked_printf("  CPU %d running task TA%" PRIu32 "\n", cpu_num, task_index );
36  Loop();
37  TaskRan[task_index] = true;
38
39  while(1);
40}
41
42rtems_task Init(
43  rtems_task_argument argument
44)
45{
46  int               i;
47  char              ch;
48  rtems_id          id;
49  rtems_status_code status;
50  bool              allDone;
51  int               cpu_num;
52
53  Loop();
54  locked_print_initialize();
55  locked_printf( "\n\n***  SMP04 TEST ***\n" );
56
57  /* Display which cpu is running this init thread. */
58  cpu_num = bsp_smp_processor_id();
59  locked_printf("  CPU %d running task Init\n", cpu_num );
60
61  /* Set all Tasks to not ran except for the init task */
62  TaskRan[0] = true;
63  for ( i=1; i <= rtems_smp_get_number_of_processors() ; i++ )
64    TaskRan[i] = false;
65 
66
67  /*
68   * For each processor create and start a task alternating
69   * between  RTEMS_PREEMPT and RTEMS_NO_PREEMPT.
70   */
71  for ( i=1; i < rtems_smp_get_number_of_processors() ; i++ ){
72
73    /* Create and start tasks for each CPU */
74    ch = '0' + i;
75    locked_printf(
76      "Create a TA%c a %s task\n",
77      ch, 
78      ((i%2) ? "RTEMS_PREEMPT" : "RTEMS_NO_PREEMPT" ) 
79    );
80
81    status = rtems_task_create(
82      rtems_build_name( 'T', 'A', ch, ' ' ),
83      CONFIGURE_INIT_TASK_PRIORITY +
84        (2*rtems_smp_get_number_of_processors()) - (2*i),
85      RTEMS_MINIMUM_STACK_SIZE,
86      ((i%2) ? RTEMS_PREEMPT : RTEMS_NO_PREEMPT),
87      RTEMS_DEFAULT_ATTRIBUTES,
88      &id
89    );
90
91    locked_printf(
92      "Start TA%c a %s task\n",
93      ch, 
94      ((i%2) ? "RTEMS_PREEMPT" : "RTEMS_NO_PREEMPT" ) 
95    );
96    status = rtems_task_start( id, Test_task, i );
97
98    /*
99     * Force a wait on the task to run in order to synchronize on
100     * simulated systems.
101     */   
102    while (TaskRan[i] == false)
103      ;
104  }
105
106  /*
107   * Create and start one more task.  This task
108   * should preempt the longest running PREEMPTABLE
109   * task and run on that cpu.
110   */
111  ch = '0' + rtems_smp_get_number_of_processors() ;
112  locked_printf(
113    "Create a TA%c a %s task\n",
114    ch, 
115    "RTEMS_PREEMPT" 
116  );
117  status = rtems_task_create(
118    rtems_build_name( 'T', 'A', ch, ' ' ),
119    3,
120    RTEMS_MINIMUM_STACK_SIZE,
121    RTEMS_PREEMPT,
122    RTEMS_DEFAULT_ATTRIBUTES,
123    &id
124  );
125  locked_printf(
126    "Start TA%c a %s task\n",
127    ch, 
128    "RTEMS_PREEMPT" 
129  );
130  status = rtems_task_start(
131    id,
132    Test_task,
133    rtems_smp_get_number_of_processors()
134  );
135 
136  /*
137   * Wait on the all tasks to run
138   */
139  while (1) {
140    allDone = true;
141    for ( i=1; i<=rtems_smp_get_number_of_processors() ; i++ ) {
142      if (TaskRan[i] == false)
143        allDone = false;
144    }
145    if (allDone) {
146      Loop();
147      locked_printf( "*** END OF TEST SMP04 ***\n" );
148      rtems_test_exit( 0 );
149    }
150  }
151}
Note: See TracBrowser for help on using the repository browser.