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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. #include <print.h>
  30. #include <debug.h>
  31. #include <panic.h>
  32.  
  33. #include <test.h>
  34. #include <atomic.h>
  35. #include <proc/thread.h>
  36. #include <time/delay.h>
  37.  
  38. #include <arch.h>
  39.  
  40. #ifdef CONFIG_BENCH
  41. #include <arch/cycle.h>
  42. #endif
  43.  
  44. #if (defined(ia32) || defined(amd64) || defined(ia32xen))
  45.  
  46. #define THREADS     50
  47. #define DELAY       10000L
  48. #define ATTEMPTS        5
  49.  
  50. static atomic_t threads_ok;
  51. static waitq_t can_start;
  52.  
  53. static void testit1(void *data)
  54. {
  55.     int i;
  56.     int arg __attribute__((aligned(16))) = (int)((unative_t) data);
  57.     int after_arg __attribute__((aligned(16)));
  58.  
  59.     thread_detach(THREAD);
  60.    
  61.     waitq_sleep(&can_start);
  62.  
  63.     for (i = 0; i<ATTEMPTS; i++) {
  64.         __asm__ volatile (
  65.             "movlpd %0, %%xmm2"
  66.             :"=m"(arg)
  67.             );
  68.  
  69.         delay(DELAY);
  70.         __asm__ volatile (
  71.             "movlpd %%xmm2, %0"
  72.             :"=m"(after_arg)
  73.             );
  74.        
  75.         if(arg != after_arg)
  76.             panic("tid%d: arg(%d) != %d\n",
  77.                   THREAD->tid, arg, after_arg);
  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.             "movlpd %0, %%xmm2"
  96.             :"=m"(arg)
  97.             );
  98.  
  99.         scheduler();
  100.         __asm__ volatile (
  101.             "movlpd %%xmm2, %0"
  102.             :"=m"(after_arg)
  103.             );
  104.        
  105.         if(arg != after_arg)
  106.             panic("tid%d: arg(%d) != %d\n",
  107.                   THREAD->tid, arg, after_arg);
  108.     }
  109.  
  110.     atomic_inc(&threads_ok);
  111. }
  112.  
  113.  
  114. void test_sse1(void)
  115. {
  116. #ifdef CONFIG_BENCH
  117.     uint64_t t0 = get_cycle();
  118. #endif
  119.     thread_t *t;
  120.     int i;
  121.  
  122.     waitq_initialize(&can_start);
  123.  
  124.     printf("SSE test #1\n");
  125.     printf("Creating %d threads... ", THREADS);
  126.  
  127.     for (i=0; i<THREADS/2; i++) {  
  128.         if (!(t = thread_create(testit1, (void *)((unative_t)i*2), TASK, 0, "testit1")))
  129.             panic("could not create thread\n");
  130.         thread_ready(t);
  131.         if (!(t = thread_create(testit2, (void *)((unative_t)i*2+1), TASK, 0, "testit2")))
  132.             panic("could not create thread\n");
  133.         thread_ready(t);
  134.     }
  135.  
  136.     printf("ok\n");
  137.    
  138.     thread_sleep(1);
  139.     waitq_wakeup(&can_start, WAKEUP_ALL);
  140.  
  141.     while (atomic_get(&threads_ok) != THREADS)
  142.         ;
  143.        
  144.     printf("Test passed.\n");
  145. #ifdef CONFIG_BENCH
  146.     uint64_t dt = get_cycle() - t0;
  147.     printf("Time: %.*d cycles\n", sizeof(dt) * 2, dt);
  148. #endif
  149. }
  150.  
  151. #else
  152.  
  153. void test_sse1(void)
  154. {
  155.     printf("This test is available only on SSE enabled platforms.");
  156. }
  157.  
  158. #endif
  159.