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  1. /*
  2.  * Copyright (C) 2005 Ondrej Palkovsky
  3.  * All rights reserved.
  4.  *
  5.  * Redistribution and use in source and binary forms, with or without
  6.  * modification, are permitted provided that the following conditions
  7.  * are met:
  8.  *
  9.  * - Redistributions of source code must retain the above copyright
  10.  *   notice, this list of conditions and the following disclaimer.
  11.  * - Redistributions in binary form must reproduce the above copyright
  12.  *   notice, this list of conditions and the following disclaimer in the
  13.  *   documentation and/or other materials provided with the distribution.
  14.  * - The name of the author may not be used to endorse or promote products
  15.  *   derived from this software without specific prior written permission.
  16.  *
  17.  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  18.  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  19.  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20.  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  21.  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22.  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23.  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24.  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25.  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26.  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27.  */
  28.  
  29. #ifdef mips32
  30.  
  31. #include <print.h>
  32. #include <debug.h>
  33. #include <panic.h>
  34.  
  35. #include <test.h>
  36. #include <atomic.h>
  37. #include <proc/thread.h>
  38. #include <time/delay.h>
  39.  
  40. #include <arch.h>
  41.  
  42. #define THREADS     50
  43. #define DELAY       10000L
  44. #define ATTEMPTS        5
  45.  
  46. static atomic_t threads_ok;
  47. static atomic_t threads_fault;
  48. static waitq_t can_start;
  49.  
  50. static void testit1(void *data)
  51. {
  52.     int i;
  53.     int arg __attribute__((aligned(16))) = (int) ((unative_t) data);
  54.     int after_arg __attribute__((aligned(16)));
  55.    
  56.     thread_detach(THREAD);
  57.    
  58.     waitq_sleep(&can_start);
  59.  
  60.     for (i = 0; i < ATTEMPTS; i++) {
  61.         asm volatile (
  62.             "mtc1 %0,$1"
  63.             : "=r" (arg)
  64.         );
  65.        
  66.         delay(DELAY);
  67.        
  68.         asm volatile (
  69.             "mfc1 %0, $1"
  70.             : "=r" (after_arg)
  71.         );
  72.        
  73.         if (arg != after_arg) {
  74.             printf("General reg tid%d: arg(%d) != %d\n", THREAD->tid, arg, after_arg);
  75.             atomic_inc(&threads_fault);
  76.             break;
  77.         }
  78.     }
  79.     atomic_inc(&threads_ok);
  80. }
  81.  
  82. static void testit2(void *data)
  83. {
  84.     int i;
  85.     int arg __attribute__((aligned(16))) = (int) ((unative_t) data);
  86.     int after_arg __attribute__((aligned(16)));
  87.    
  88.     thread_detach(THREAD);
  89.    
  90.     waitq_sleep(&can_start);
  91.  
  92.     for (i = 0; i < ATTEMPTS; i++) {
  93.         asm volatile (
  94.             "mtc1 %0,$1"
  95.             : "=r" (arg)
  96.         );
  97.  
  98.         scheduler();
  99.         asm volatile (
  100.             "mfc1 %0,$1"
  101.             : "=r" (after_arg)
  102.         );
  103.        
  104.         if (arg != after_arg) {
  105.             panic("General reg tid%d: arg(%d) != %d\n", THREAD->tid, arg, after_arg);
  106.             atomic_inc(&threads_fault);
  107.             break;
  108.         }
  109.     }
  110.     atomic_inc(&threads_ok);
  111. }
  112.  
  113.  
  114. char * test_mips2(void)
  115. {
  116.     unsigned int i, total = 0;
  117.    
  118.     waitq_initialize(&can_start);
  119.     atomic_set(&threads_ok, 0);
  120.     atomic_set(&threads_fault, 0);
  121.     printf("Creating %d threads... ", 2 * THREADS);
  122.  
  123.     for (i = 0; i < THREADS; i++) {
  124.         thread_t *t;
  125.        
  126.         if (!(t = thread_create(testit1, (void *) ((unative_t) 2 * i), TASK, 0, "testit1"))) {
  127.             printf("could not create thread %d\n", 2 * i);
  128.             break;
  129.         }
  130.         thread_ready(t);
  131.         total++;
  132.        
  133.         if (!(t = thread_create(testit2, (void *) ((unative_t) 2 * i + 1), TASK, 0, "testit2"))) {
  134.             printf("could not create thread %d\n", 2 * i + 1);
  135.             break;
  136.         }
  137.         thread_ready(t);
  138.         total++;
  139.     }
  140.     printf("ok\n");
  141.        
  142.     thread_sleep(1);
  143.     waitq_wakeup(&can_start, WAKEUP_ALL);
  144.    
  145.     while (atomic_get(&threads_ok) != total) {
  146.         printf("Threads left: %d\n", total - atomic_get(&threads_ok));
  147.         thread_sleep(1);
  148.     }
  149.    
  150.     if (atomic_get(&threads_fault) == 0)
  151.         return NULL;
  152.    
  153.     return "Test failed";
  154. }
  155.  
  156. #endif
  157.