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326 palkovsky 1
/*
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 * Copyright (c) 2005 Ondrej Palkovsky
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 * All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 *
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 * - Redistributions of source code must retain the above copyright
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 *   notice, this list of conditions and the following disclaimer.
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 * - Redistributions in binary form must reproduce the above copyright
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 *   notice, this list of conditions and the following disclaimer in the
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 *   documentation and/or other materials provided with the distribution.
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 * - The name of the author may not be used to endorse or promote products
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 *   derived from this software without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 */
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#ifdef mips32
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#include <print.h>
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#include <debug.h>
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#include <test.h>
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#include <atomic.h>
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#include <proc/thread.h>
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#include <time/delay.h>
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#include <arch.h>
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#define THREADS     50
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#define DELAY       10000L
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#define ATTEMPTS        5
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static atomic_t threads_ok;
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static atomic_t threads_fault;
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static waitq_t can_start;
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static bool sh_quiet;
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static void testit1(void *data)
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{
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    int i;
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    int arg __attribute__((aligned(16))) = (int) ((unative_t) data);
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    int after_arg __attribute__((aligned(16)));
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    thread_detach(THREAD);
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    waitq_sleep(&can_start);
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    for (i = 0; i < ATTEMPTS; i++) {
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        asm volatile (
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            "mtc1 %0,$1"
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            : "=r" (arg)
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        );
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        delay(DELAY);
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        asm volatile (
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            "mfc1 %0, $1"
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            : "=r" (after_arg)
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        );
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        if (arg != after_arg) {
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            if (!sh_quiet)
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                printf("General reg tid%llu: arg(%d) != %d\n", THREAD->tid, arg, after_arg);
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            atomic_inc(&threads_fault);
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            break;
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        }
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    }
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    atomic_inc(&threads_ok);
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}
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static void testit2(void *data)
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{
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    int i;
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    int arg __attribute__((aligned(16))) = (int) ((unative_t) data);
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    int after_arg __attribute__((aligned(16)));
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    thread_detach(THREAD);
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    waitq_sleep(&can_start);
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    for (i = 0; i < ATTEMPTS; i++) {
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        asm volatile (
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            "mtc1 %0,$1"
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            : "=r" (arg)
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        );
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        scheduler();
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        asm volatile (
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            "mfc1 %0,$1"
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            : "=r" (after_arg)
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        );
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        if (arg != after_arg) {
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            if (!sh_quiet)
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                printf("General reg tid%llu: arg(%d) != %d\n", THREAD->tid, arg, after_arg);
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            atomic_inc(&threads_fault);
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            break;
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        }
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    }
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    atomic_inc(&threads_ok);
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}
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char * test_mips2(bool quiet)
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{
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    unsigned int i, total = 0;
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    sh_quiet = quiet;
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    waitq_initialize(&can_start);
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    atomic_set(&threads_ok, 0);
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    atomic_set(&threads_fault, 0);
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    if (!quiet)
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        printf("Creating %d threads... ", 2 * THREADS);
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    for (i = 0; i < THREADS; i++) {
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        thread_t *t;
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        if (!(t = thread_create(testit1, (void *) ((unative_t) 2 * i), TASK, 0, "testit1", false))) {
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            if (!quiet)
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                printf("could not create thread %d\n", 2 * i);
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            break;
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        }
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        thread_ready(t);
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        total++;
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        if (!(t = thread_create(testit2, (void *) ((unative_t) 2 * i + 1), TASK, 0, "testit2", false))) {
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            if (!quiet)
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                printf("could not create thread %d\n", 2 * i + 1);
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            break;
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        }
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        thread_ready(t);
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        total++;
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    }
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    if (!quiet)
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        printf("ok\n");
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    thread_sleep(1);
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    waitq_wakeup(&can_start, WAKEUP_ALL);
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    while (atomic_get(&threads_ok) != (long) total) {
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        if (!quiet)
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            printf("Threads left: %d\n", total - atomic_get(&threads_ok));
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        thread_sleep(1);
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    }
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    if (atomic_get(&threads_fault) == 0)
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        return NULL;
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    return "Test failed";
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}
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#endif