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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.  
  34. #include <test.h>
  35. #include <atomic.h>
  36. #include <proc/thread.h>
  37. #include <time/delay.h>
  38.  
  39. #include <arch.h>
  40.  
  41. #define THREADS     50
  42. #define DELAY       10000L
  43. #define ATTEMPTS        5
  44.  
  45. static atomic_t threads_ok;
  46. static atomic_t threads_fault;
  47. static waitq_t can_start;
  48. static bool sh_quiet;
  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.             if (!sh_quiet)
  75.                 printf("General reg tid%llu: arg(%d) != %d\n", THREAD->tid, arg, after_arg);
  76.             atomic_inc(&threads_fault);
  77.             break;
  78.         }
  79.     }
  80.     atomic_inc(&threads_ok);
  81. }
  82.  
  83. static void testit2(void *data)
  84. {
  85.     int i;
  86.     int arg __attribute__((aligned(16))) = (int) ((unative_t) data);
  87.     int after_arg __attribute__((aligned(16)));
  88.    
  89.     thread_detach(THREAD);
  90.    
  91.     waitq_sleep(&can_start);
  92.  
  93.     for (i = 0; i < ATTEMPTS; i++) {
  94.         asm volatile (
  95.             "mtc1 %0,$1"
  96.             : "=r" (arg)
  97.         );
  98.  
  99.         scheduler();
  100.         asm volatile (
  101.             "mfc1 %0,$1"
  102.             : "=r" (after_arg)
  103.         );
  104.        
  105.         if (arg != after_arg) {
  106.             if (!sh_quiet)
  107.                 printf("General reg tid%llu: arg(%d) != %d\n", THREAD->tid, arg, after_arg);
  108.             atomic_inc(&threads_fault);
  109.             break;
  110.         }
  111.     }
  112.     atomic_inc(&threads_ok);
  113. }
  114.  
  115.  
  116. char * test_mips2(bool quiet)
  117. {
  118.     unsigned int i, total = 0;
  119.     sh_quiet = quiet;
  120.    
  121.     waitq_initialize(&can_start);
  122.     atomic_set(&threads_ok, 0);
  123.     atomic_set(&threads_fault, 0);
  124.    
  125.     if (!quiet)
  126.         printf("Creating %d threads... ", 2 * THREADS);
  127.  
  128.     for (i = 0; i < THREADS; i++) {
  129.         thread_t *t;
  130.        
  131.         if (!(t = thread_create(testit1, (void *) ((unative_t) 2 * i), TASK, 0, "testit1", false))) {
  132.             if (!quiet)
  133.                 printf("could not create thread %d\n", 2 * i);
  134.             break;
  135.         }
  136.         thread_ready(t);
  137.         total++;
  138.        
  139.         if (!(t = thread_create(testit2, (void *) ((unative_t) 2 * i + 1), TASK, 0, "testit2", false))) {
  140.             if (!quiet)
  141.                 printf("could not create thread %d\n", 2 * i + 1);
  142.             break;
  143.         }
  144.         thread_ready(t);
  145.         total++;
  146.     }
  147.    
  148.     if (!quiet)
  149.         printf("ok\n");
  150.        
  151.     thread_sleep(1);
  152.     waitq_wakeup(&can_start, WAKEUP_ALL);
  153.    
  154.     while (atomic_get(&threads_ok) != total) {
  155.         if (!quiet)
  156.             printf("Threads left: %d\n", total - atomic_get(&threads_ok));
  157.         thread_sleep(1);
  158.     }
  159.    
  160.     if (atomic_get(&threads_fault) == 0)
  161.         return NULL;
  162.    
  163.     return "Test failed";
  164. }
  165.  
  166. #endif
  167.