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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. #if (defined(ia32) || defined(amd64) || defined(ia32xen))
  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     25
  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.  
  49. static void testit1(void *data)
  50. {
  51.     int i;
  52.     int arg __attribute__((aligned(16))) = (int) ((unative_t) data);
  53.     int after_arg __attribute__((aligned(16)));
  54.  
  55.     thread_detach(THREAD);
  56.    
  57.     waitq_sleep(&can_start);
  58.  
  59.     for (i = 0; i < ATTEMPTS; i++) {
  60.         asm volatile (
  61.             "movlpd %0, %%xmm2\n"
  62.             : "=m" (arg)
  63.         );
  64.  
  65.         delay(DELAY);
  66.         asm volatile (
  67.             "movlpd %%xmm2, %0\n"
  68.             : "=m" (after_arg)
  69.         );
  70.        
  71.         if (arg != after_arg) {
  72.             printf("tid%d: arg(%d) != %d\n", THREAD->tid, arg, after_arg);
  73.             atomic_inc(&threads_fault);
  74.             break;
  75.         }
  76.     }
  77.     atomic_inc(&threads_ok);
  78. }
  79.  
  80. static void testit2(void *data)
  81. {
  82.     int i;
  83.     int arg __attribute__((aligned(16))) = (int) ((unative_t) data);
  84.     int after_arg __attribute__((aligned(16)));
  85.    
  86.     thread_detach(THREAD);
  87.    
  88.     waitq_sleep(&can_start);
  89.  
  90.     for (i = 0; i < ATTEMPTS; i++) {
  91.         asm volatile (
  92.             "movlpd %0, %%xmm2\n"
  93.             : "=m" (arg)
  94.         );
  95.  
  96.         scheduler();
  97.         asm volatile (
  98.             "movlpd %%xmm2, %0\n"
  99.             : "=m" (after_arg)
  100.         );
  101.        
  102.         if (arg != after_arg) {
  103.             printf("tid%d: arg(%d) != %d\n", THREAD->tid, arg, after_arg);
  104.             atomic_inc(&threads_fault);
  105.             break;
  106.         }
  107.     }
  108.     atomic_inc(&threads_ok);
  109. }
  110.  
  111.  
  112. char * test_sse1(void)
  113. {
  114.     unsigned int i, total = 0;
  115.  
  116.     waitq_initialize(&can_start);
  117.     atomic_set(&threads_ok, 0);
  118.     atomic_set(&threads_fault, 0);
  119.     printf("Creating %d threads... ", 2 * THREADS);
  120.  
  121.     for (i = 0; i < THREADS; i++) {
  122.         thread_t *t;
  123.        
  124.         if (!(t = thread_create(testit1, (void *) ((unative_t) 2 * i), TASK, 0, "testit1"))) {
  125.             printf("could not create thread %d\n", 2 * i);
  126.             break;
  127.         }
  128.         thread_ready(t);
  129.         total++;
  130.        
  131.         if (!(t = thread_create(testit2, (void *) ((unative_t) 2 * i + 1), TASK, 0, "testit2"))) {
  132.             printf("could not create thread %d\n", 2 * i + 1);
  133.             break;
  134.         }
  135.         thread_ready(t);
  136.         total++;
  137.     }
  138.     printf("ok\n");
  139.        
  140.     thread_sleep(1);
  141.     waitq_wakeup(&can_start, WAKEUP_ALL);
  142.    
  143.     while (atomic_get(&threads_ok) != total) {
  144.         printf("Threads left: %d\n", total - atomic_get(&threads_ok));
  145.         thread_sleep(1);
  146.     }
  147.    
  148.     if (atomic_get(&threads_fault) == 0)
  149.         return NULL;
  150.    
  151.     return "Test failed";
  152. }
  153.  
  154. #endif
  155.