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/*
* Copyright (c) 2014-2018 Richard Braun.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*
* This test creates a thread that tests cross-calls for all combinations
* of processors. This thread sequentially creates other threads that are
* bound to a single processor, and perform cross-calls to all processors,
* including the local one.
*/
#include <stdbool.h>
#include <stddef.h>
#include <stdio.h>
#include <kern/error.h>
#include <kern/cpumap.h>
#include <kern/log.h>
#include <kern/panic.h>
#include <kern/thread.h>
#include <kern/xcall.h>
#include <test/test.h>
static bool test_done;
static void
test_fn(void *arg)
{
uintptr_t cpu;
assert(thread_interrupted());
cpu = (uintptr_t)arg;
if (cpu != cpu_id()) {
panic("invalid cpu");
}
log_info("function called, running on cpu%u\n", cpu_id());
test_done = true;
}
static void
test_once(unsigned int cpu)
{
test_done = false;
log_info("cross-call: cpu%u -> cpu%u:\n", cpu_id(), cpu);
xcall_call(test_fn, (void *)(uintptr_t)cpu, cpu);
if (!test_done) {
panic("test_done false");
}
}
static void
test_run_cpu(void *arg)
{
(void)arg;
for (unsigned int i = 0; i < cpu_count(); i++) {
test_once(i);
}
}
static void
test_run(void *arg)
{
char name[THREAD_NAME_SIZE];
struct thread_attr attr;
struct thread *thread;
struct cpumap *cpumap;
int error;
(void)arg;
error = cpumap_create(&cpumap);
error_check(error, "cpumap_create");
for (unsigned int i = 0; i < cpu_count(); i++) {
cpumap_zero(cpumap);
cpumap_set(cpumap, i);
snprintf(name, sizeof(name), THREAD_KERNEL_PREFIX "test_run/%u", i);
thread_attr_init(&attr, name);
thread_attr_set_cpumap(&attr, cpumap);
error = thread_create(&thread, &attr, test_run_cpu, NULL);
error_check(error, "thread_create");
thread_join(thread);
}
cpumap_destroy(cpumap);
log_info("done\n");
}
void
test_setup(void)
{
struct thread_attr attr;
struct thread *thread;
int error;
thread_attr_init(&attr, THREAD_KERNEL_PREFIX "test_run");
thread_attr_set_detached(&attr);
error = thread_create(&thread, &attr, test_run, NULL);
error_check(error, "thread_create");
}
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