1 | /* |
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2 | * COPYRIGHT (c) 2014. |
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3 | * On-Line Applications Research Corporation (OAR). |
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4 | * |
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5 | * The license and distribution terms for this file may be |
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6 | * found in the file LICENSE in this distribution or at |
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7 | * http://www.rtems.org/license/LICENSE. |
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8 | */ |
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9 | |
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10 | /* |
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11 | * Start 4 tasks with affinity for each of the 4 cpus. |
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12 | * Allow tasks to set their actual cpu value and delete themselves. |
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13 | * Verify the actual cpu values match the expected cpu values. |
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14 | * |
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15 | * Init task is at a lower priority 8 and the threads |
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16 | * with affinity are at priority 4, so the affinity task |
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17 | * on the core init is running on will preempt it. |
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18 | * |
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19 | * Test tasks run and delete themselves. |
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20 | * Init task never blocks. |
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21 | */ |
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22 | |
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23 | #ifdef HAVE_CONFIG_H |
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24 | #include "config.h" |
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25 | #endif |
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26 | |
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27 | #include <rtems.h> |
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28 | #include <inttypes.h> |
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29 | |
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30 | #include "tmacros.h" |
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31 | |
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32 | const char rtems_test_name[] = "SMPSCHEDAFFINITY 5"; |
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33 | |
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34 | #define NUM_CPUS 4 |
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35 | #define TASK_COUNT 5 |
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36 | |
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37 | struct task_data_t { |
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38 | rtems_id id; |
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39 | cpu_set_t cpuset; |
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40 | rtems_task_priority priority; |
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41 | bool ran; |
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42 | int expected_cpu; |
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43 | int actual_cpu; |
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44 | int migrate_cpu; |
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45 | }; |
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46 | |
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47 | static struct task_data_t task_data[TASK_COUNT] = { |
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48 | {0x0, {{0xc}}, 7, false, 3, -1, 2}, |
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49 | {0x0, {{0xf}}, 8, false, 2, -1, -1}, |
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50 | {0x0, {{0x3}}, 5, false, 1, -1, 0}, |
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51 | {0x0, {{0x9}}, 6, false, 0, -1, 3}, |
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52 | {0x0, {{0x2}}, 9, false, -1, -1, 1} |
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53 | }; |
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54 | |
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55 | rtems_id task_sem; |
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56 | |
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57 | static void verify_tasks(void); |
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58 | |
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59 | /* |
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60 | * Spin loop to allow tasks to delay without yeilding the |
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61 | * processor. |
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62 | */ |
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63 | static void test_delay(int ticks) |
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64 | { |
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65 | rtems_interval start, stop; |
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66 | start = rtems_clock_get_ticks_since_boot(); |
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67 | do { |
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68 | stop = rtems_clock_get_ticks_since_boot(); |
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69 | } while ( (stop - start) < ticks ); |
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70 | } |
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71 | |
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72 | static void task(rtems_task_argument arg) |
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73 | { |
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74 | rtems_status_code sc; |
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75 | |
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76 | while (true) { |
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77 | sc = rtems_semaphore_obtain (task_sem, RTEMS_NO_WAIT, 0); |
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78 | if (sc == RTEMS_SUCCESSFUL) { |
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79 | task_data[arg].ran = true; |
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80 | task_data[arg].actual_cpu = rtems_scheduler_get_processor(); |
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81 | rtems_semaphore_release(task_sem); |
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82 | } |
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83 | } |
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84 | } |
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85 | static void verify_tasks(void) |
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86 | { |
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87 | int i; |
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88 | |
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89 | printf("Verify Tasks Ran\n"); |
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90 | |
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91 | while( rtems_semaphore_obtain (task_sem, RTEMS_NO_WAIT, 0) != RTEMS_SUCCESSFUL ); |
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92 | |
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93 | /* Set Init task data */ |
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94 | task_data[0].ran = true; |
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95 | task_data[0].actual_cpu = rtems_scheduler_get_processor(); |
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96 | |
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97 | /* Verify all tasks */ |
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98 | for (i = 0; i < NUM_CPUS; i++) { |
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99 | if (i==0) |
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100 | printf("Init(%" PRIu32 "): ran=%d expected=%d actual=%d\n", |
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101 | task_data[i].priority, |
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102 | task_data[i].ran, |
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103 | task_data[i].expected_cpu, |
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104 | task_data[i].actual_cpu |
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105 | ); |
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106 | else |
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107 | printf( "TA0%d(%" PRIu32 "): ran=%d expected=%d actual=%d\n", |
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108 | i, |
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109 | task_data[i].priority, |
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110 | task_data[i].ran, |
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111 | task_data[i].expected_cpu, |
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112 | task_data[i].actual_cpu |
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113 | ); |
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114 | |
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115 | /* Abort test if values are not as expected */ |
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116 | if ( task_data[i].expected_cpu == -1 ) |
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117 | rtems_test_assert( task_data[i].ran == false ); |
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118 | else { |
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119 | rtems_test_assert( task_data[i].ran == true ); |
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120 | rtems_test_assert( task_data[i].expected_cpu == task_data[i].actual_cpu ); |
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121 | } |
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122 | } |
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123 | |
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124 | rtems_semaphore_release(task_sem); |
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125 | } |
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126 | |
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127 | static void test(void) |
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128 | { |
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129 | rtems_status_code sc; |
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130 | rtems_task_argument i; |
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131 | size_t size; |
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132 | uint32_t cpu_count; |
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133 | rtems_task_priority priority; |
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134 | |
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135 | /* Get the number of processors that we are using. */ |
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136 | cpu_count = rtems_get_processor_count(); |
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137 | if (cpu_count != 4) { |
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138 | printf("Test requires a minimum of 4 cores\n"); |
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139 | return; |
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140 | } |
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141 | |
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142 | size = sizeof(cpu_set_t); |
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143 | task_data[0].id = rtems_task_self(); |
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144 | printf("Create Semaphore\n"); |
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145 | |
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146 | sc = rtems_semaphore_create( |
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147 | rtems_build_name('S', 'E', 'M', '0'), |
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148 | 1, /* initial count = 1 */ |
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149 | RTEMS_BINARY_SEMAPHORE | |
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150 | RTEMS_PRIORITY | |
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151 | RTEMS_PRIORITY_CEILING, |
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152 | 0, |
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153 | &task_sem |
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154 | ); |
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155 | rtems_test_assert(sc == RTEMS_SUCCESSFUL); |
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156 | |
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157 | |
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158 | /* Create and start tasks on each cpu with the appropriate affinity. */ |
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159 | for (i = 1; i < TASK_COUNT; i++) { |
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160 | |
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161 | sc = rtems_task_create( |
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162 | rtems_build_name('T', 'A', '0', '0'+i), |
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163 | task_data[ i ].priority, |
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164 | RTEMS_MINIMUM_STACK_SIZE, |
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165 | RTEMS_DEFAULT_MODES, |
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166 | RTEMS_DEFAULT_ATTRIBUTES, |
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167 | &task_data[ i ].id |
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168 | ); |
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169 | rtems_test_assert(sc == RTEMS_SUCCESSFUL); |
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170 | |
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171 | sc = rtems_task_set_affinity( |
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172 | task_data[ i ].id, |
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173 | size, |
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174 | &task_data[i].cpuset |
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175 | ); |
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176 | rtems_test_assert(sc == RTEMS_SUCCESSFUL); |
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177 | |
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178 | printf( |
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179 | "Start TA%" PRIdrtems_task_argument " at priority %" |
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180 | PRIu32 " on cpu %d\n", |
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181 | i, |
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182 | task_data[i].priority, |
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183 | task_data[i].expected_cpu |
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184 | ); |
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185 | sc = rtems_task_start( task_data[ i ].id, task, i ); |
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186 | rtems_test_assert(sc == RTEMS_SUCCESSFUL); |
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187 | } |
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188 | |
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189 | /* spin for 100 ticks */ |
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190 | test_delay(100); |
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191 | |
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192 | verify_tasks(); |
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193 | |
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194 | i = TASK_COUNT - 1; |
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195 | task_data[ i ].priority = 4; |
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196 | printf( |
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197 | "Set TA%" PRIdrtems_task_argument " priority %" PRIu32 "\n", |
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198 | i, |
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199 | task_data[i].priority |
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200 | ); |
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201 | sc = rtems_task_set_priority( |
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202 | task_data[ i ].id, |
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203 | task_data[ i ].priority, |
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204 | &priority |
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205 | ); |
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206 | test_delay(25); |
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207 | |
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208 | while( rtems_semaphore_obtain (task_sem, RTEMS_NO_WAIT, 0) != RTEMS_SUCCESSFUL ); |
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209 | for (i = 0; i < TASK_COUNT; i++) { |
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210 | task_data[ i ].expected_cpu = task_data[ i ].migrate_cpu; |
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211 | task_data[ i ].actual_cpu = -1; |
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212 | task_data[ i ].ran = false; |
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213 | } |
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214 | rtems_semaphore_release(task_sem); |
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215 | test_delay(25); |
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216 | verify_tasks(); |
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217 | } |
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218 | |
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219 | static void Init(rtems_task_argument arg) |
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220 | { |
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221 | TEST_BEGIN(); |
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222 | |
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223 | test(); |
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224 | |
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225 | TEST_END(); |
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226 | rtems_test_exit(0); |
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227 | } |
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228 | |
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229 | #define CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER |
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230 | #define CONFIGURE_APPLICATION_NEEDS_SIMPLE_CONSOLE_DRIVER |
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231 | |
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232 | #define CONFIGURE_SCHEDULER_PRIORITY_AFFINITY_SMP |
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233 | |
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234 | #define CONFIGURE_MAXIMUM_PROCESSORS NUM_CPUS |
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235 | |
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236 | #define CONFIGURE_MAXIMUM_TASKS TASK_COUNT |
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237 | |
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238 | #define CONFIGURE_MAXIMUM_SEMAPHORES 1 |
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239 | |
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240 | #define CONFIGURE_INITIAL_EXTENSIONS RTEMS_TEST_INITIAL_EXTENSION |
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241 | |
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242 | #define CONFIGURE_INIT_TASK_PRIORITY 7 |
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243 | #define CONFIGURE_RTEMS_INIT_TASKS_TABLE |
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244 | |
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245 | #define CONFIGURE_INIT |
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246 | |
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247 | #include <rtems/confdefs.h> |
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