forked from Imagelibrary/rtems
7336be9d78
Rename _SMP_Request_other_cores_to_perform_first_context_switch() into _SMP_Request_start_multitasking() since this requests now a multitasking start on all configured and available processors. The name corresponds _Thread_Start_multitasking() and _SMP_Start_multitasking_on_secondary_processor() actions issued in response to this request. Move in source file to right place. Rename PER_CPU_STATE_READY_TO_BEGIN_MULTITASKING into PER_CPU_STATE_READY_TO_START_MULTITASKING. Rename PER_CPU_STATE_BEGIN_MULTITASKING into PER_CPU_STATE_REQUEST_START_MULTITASKING. Rename _SMP_Request_other_cores_to_shutdown() into _SMP_Request_shutdown(). Add a per-CPU state lock to protect all changes. This was necessary to offer a controlled shutdown of the system (atomic read/writes alone are not sufficient for this kind of synchronization). Add documentation for Per_CPU_State. Delete debug output. New tests smptests/smpfatal01 and smptests/smpfatal02.
131 lines
2.8 KiB
C
131 lines
2.8 KiB
C
/*
|
|
* Copyright (c) 2014 embedded brains GmbH. All rights reserved.
|
|
*
|
|
* embedded brains GmbH
|
|
* Dornierstr. 4
|
|
* 82178 Puchheim
|
|
* Germany
|
|
* <rtems@embedded-brains.de>
|
|
*
|
|
* The license and distribution terms for this file may be
|
|
* found in the file LICENSE in this distribution or at
|
|
* http://www.rtems.com/license/LICENSE.
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
|
|
#include <rtems.h>
|
|
#include <rtems/score/percpu.h>
|
|
#include <rtems/score/smpimpl.h>
|
|
|
|
#include <assert.h>
|
|
#include <stdlib.h>
|
|
|
|
#define MAX_CPUS 32
|
|
|
|
static uint32_t main_cpu;
|
|
|
|
static void Init(rtems_task_argument arg)
|
|
{
|
|
assert(0);
|
|
}
|
|
|
|
static void end_of_test(void)
|
|
{
|
|
printk( "*** END OF TEST SMPFATAL 1 ***\n" );
|
|
}
|
|
|
|
static void fatal_extension(
|
|
rtems_fatal_source source,
|
|
bool is_internal,
|
|
rtems_fatal_code code
|
|
)
|
|
{
|
|
if (source == RTEMS_FATAL_SOURCE_SMP) {
|
|
uint32_t self = rtems_smp_get_current_processor();
|
|
|
|
assert(!is_internal);
|
|
assert(code == SMP_FATAL_SHUTDOWN);
|
|
|
|
if (self == main_cpu) {
|
|
uint32_t cpu;
|
|
|
|
for (cpu = 0; cpu < MAX_CPUS; ++cpu) {
|
|
const Per_CPU_Control *per_cpu = _Per_CPU_Get_by_index( cpu );
|
|
Per_CPU_State state = per_cpu->state;
|
|
|
|
assert(state == PER_CPU_STATE_SHUTDOWN);
|
|
}
|
|
|
|
end_of_test();
|
|
}
|
|
}
|
|
}
|
|
|
|
static rtems_status_code test_driver_init(
|
|
rtems_device_major_number major,
|
|
rtems_device_minor_number minor,
|
|
void *arg
|
|
)
|
|
{
|
|
uint32_t self = rtems_smp_get_current_processor();
|
|
uint32_t cpu_count = rtems_smp_get_processor_count();
|
|
uint32_t cpu;
|
|
|
|
printk("\n\n*** TEST SMPFATAL 1 ***\n");
|
|
|
|
assert(rtems_configuration_get_maximum_processors() == MAX_CPUS);
|
|
|
|
main_cpu = self;
|
|
|
|
for (cpu = 0; cpu < MAX_CPUS; ++cpu) {
|
|
const Per_CPU_Control *per_cpu = _Per_CPU_Get_by_index( cpu );
|
|
Per_CPU_State state = per_cpu->state;
|
|
|
|
if (cpu == self) {
|
|
assert(state == PER_CPU_STATE_INITIAL);
|
|
} else if (cpu < cpu_count) {
|
|
assert(
|
|
state == PER_CPU_STATE_INITIAL
|
|
|| state == PER_CPU_STATE_READY_TO_START_MULTITASKING
|
|
);
|
|
} else {
|
|
assert(state == PER_CPU_STATE_INITIAL);
|
|
}
|
|
}
|
|
|
|
if (cpu_count > 1) {
|
|
uint32_t other = (self + 1) % cpu_count;
|
|
Per_CPU_Control *per_cpu = _Per_CPU_Get_by_index( other );
|
|
|
|
per_cpu->state = PER_CPU_STATE_SHUTDOWN;
|
|
} else {
|
|
end_of_test();
|
|
exit(0);
|
|
}
|
|
|
|
return RTEMS_SUCCESSFUL;
|
|
}
|
|
|
|
#define CONFIGURE_APPLICATION_DOES_NOT_NEED_CLOCK_DRIVER
|
|
#define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER
|
|
|
|
#define CONFIGURE_APPLICATION_EXTRA_DRIVERS \
|
|
{ .initialization_entry = test_driver_init }
|
|
|
|
#define CONFIGURE_INITIAL_EXTENSIONS { .fatal = fatal_extension }
|
|
|
|
#define CONFIGURE_SMP_APPLICATION
|
|
|
|
#define CONFIGURE_SMP_MAXIMUM_PROCESSORS MAX_CPUS
|
|
|
|
#define CONFIGURE_MAXIMUM_TASKS 1
|
|
|
|
#define CONFIGURE_RTEMS_INIT_TASKS_TABLE
|
|
|
|
#define CONFIGURE_INIT
|
|
|
|
#include <rtems/confdefs.h>
|