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/* SPDX-License-Identifier: BSD-2-Clause */
/*
* COPYRIGHT (c) 2014.
* On-Line Applications Research Corporation (OAR).
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/*
* Test to walk the affinity of the init task across all the cores.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <rtems.h>
#include "tmacros.h"
const char rtems_test_name[] = "SMPSCHEDAFFINITY 3";
#define NUM_CPUS 4
#define TASK_COUNT NUM_CPUS
static void test_delay(int ticks)
{
rtems_interval start, stop;
start = rtems_clock_get_ticks_since_boot();
do {
stop = rtems_clock_get_ticks_since_boot();
} while ( (stop - start) < ticks );
}
static void test(void)
{
rtems_status_code sc;
rtems_id id;
uint32_t cpu_count;
int cpu;
int i;
cpu_set_t cpuset;
/* Get the number of processors that we are using. */
cpu_count = rtems_scheduler_get_processor_maximum();
id = rtems_task_self();
/*
* The Init task comes up on the maximum core so start at
* that core and walk the affinity down to core 0.
*/
for( i=cpu_count-1; i >= 0; i--) {
/* Move the affinity to the current core - 1 */
CPU_ZERO(&cpuset);
CPU_SET(i, &cpuset);
printf("Set Affinity for cpu %d\n", i);
sc = rtems_task_set_affinity( id, sizeof(cpuset), &cpuset );
rtems_test_assert(sc == RTEMS_SUCCESSFUL);
/* Wait 100 clock ticks */
test_delay(100);
/* Check the cpu the Init task is running on */
cpu = rtems_scheduler_get_processor();
printf("On cpu %d\n", cpu);
rtems_test_assert(cpu == i);
}
}
static void Init(rtems_task_argument arg)
{
TEST_BEGIN();
test();
TEST_END();
rtems_test_exit(0);
}
#define CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER
#define CONFIGURE_APPLICATION_NEEDS_SIMPLE_CONSOLE_DRIVER
#define CONFIGURE_SCHEDULER_PRIORITY_AFFINITY_SMP
#define CONFIGURE_MAXIMUM_PROCESSORS NUM_CPUS
#define CONFIGURE_MAXIMUM_TASKS TASK_COUNT
#define CONFIGURE_INITIAL_EXTENSIONS RTEMS_TEST_INITIAL_EXTENSION
#define CONFIGURE_INIT_TASK_PRIORITY 8
#define CONFIGURE_RTEMS_INIT_TASKS_TABLE
#define CONFIGURE_INIT
#include <rtems/confdefs.h>
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