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| Rev | Author | Line No. | Line |
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| 86 | jermar | 1 | /* |
| 2 | * Copyright (C) 2005 Jakub Vana |
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| 91 | jermar | 3 | * Copyright (C) 2005 Jakub Jermar |
| 86 | jermar | 4 | * All rights reserved. |
| 5 | * |
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| 6 | * Redistribution and use in source and binary forms, with or without |
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| 7 | * modification, are permitted provided that the following conditions |
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| 8 | * are met: |
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| 9 | * |
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| 10 | * - Redistributions of source code must retain the above copyright |
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| 11 | * notice, this list of conditions and the following disclaimer. |
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| 12 | * - Redistributions in binary form must reproduce the above copyright |
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| 13 | * notice, this list of conditions and the following disclaimer in the |
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| 14 | * documentation and/or other materials provided with the distribution. |
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| 15 | * - The name of the author may not be used to endorse or promote products |
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| 16 | * derived from this software without specific prior written permission. |
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| 17 | * |
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| 18 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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| 19 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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| 20 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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| 21 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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| 22 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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| 23 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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| 24 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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| 25 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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| 26 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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| 27 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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| 28 | */ |
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| 84 | vana | 29 | |
| 30 | #include <arch/interrupt.h> |
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| 31 | #include <print.h> |
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| 32 | #include <debug.h> |
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| 33 | #include <panic.h> |
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| 34 | #include <arch/i8259.h> |
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| 35 | #include <func.h> |
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| 36 | #include <cpu.h> |
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| 37 | #include <arch/asm.h> |
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| 38 | #include <mm/tlb.h> |
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| 39 | |||
| 40 | #include <test.h> |
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| 41 | #include <arch.h> |
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| 42 | #include <arch/smp/atomic.h> |
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| 43 | #include <proc/thread.h> |
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| 44 | |||
| 91 | jermar | 45 | #define THREADS 150*2 |
| 92 | jermar | 46 | #define ATTEMPTS 10 |
| 91 | jermar | 47 | |
| 48 | #define E_10e8 271828182 |
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| 49 | #define PI_10e8 314159265 |
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| 50 | |||
| 51 | static inline double sqrt(double x) { double v; __asm__ ("fsqrt\n" : "=t" (v) : "0" (x)); return v; } |
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| 52 | |||
| 53 | static volatile int threads_ok; |
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| 54 | static waitq_t can_start; |
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| 55 | |||
| 86 | jermar | 56 | static void e(void *data) |
| 84 | vana | 57 | { |
| 92 | jermar | 58 | int i; |
| 91 | jermar | 59 | double e,d,le,f; |
| 60 | |||
| 61 | waitq_sleep(&can_start); |
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| 62 | |||
| 92 | jermar | 63 | for (i = 0; i<ATTEMPTS; i++) { |
| 64 | le=-1; |
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| 65 | e=0; |
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| 66 | f=1; |
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| 67 | |||
| 68 | for(d=1;e!=le;d*=f,f+=1) { |
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| 69 | le=e; |
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| 70 | e=e+1/d; |
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| 71 | } |
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| 72 | |||
| 73 | if((int)(100000000*e)!=E_10e8) |
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| 74 | panic("tid%d: e*10e8=%d\n", THREAD->tid, (int) 100000000*e); |
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| 86 | jermar | 75 | } |
| 91 | jermar | 76 | |
| 92 | jermar | 77 | atomic_inc((int *) &threads_ok); |
| 84 | vana | 78 | } |
| 79 | |||
| 91 | jermar | 80 | static void pi(void *data) |
| 81 | { |
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| 92 | jermar | 82 | int i; |
| 83 | double lpi, pi; |
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| 84 | double n, ab, ad; |
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| 84 | vana | 85 | |
| 91 | jermar | 86 | waitq_sleep(&can_start); |
| 84 | vana | 87 | |
| 91 | jermar | 88 | |
| 92 | jermar | 89 | for (i = 0; i<ATTEMPTS; i++) { |
| 90 | lpi = -1; |
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| 91 | pi = 0; |
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| 91 | jermar | 92 | |
| 92 | jermar | 93 | for (n=2, ab = sqrt(2); lpi != pi; n *= 2, ab = ad) { |
| 94 | double sc, cd; |
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| 95 | |||
| 96 | sc = sqrt(1 - (ab*ab/4)); |
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| 97 | cd = 1 - sc; |
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| 98 | ad = sqrt(ab*ab/4 + cd*cd); |
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| 99 | lpi = pi; |
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| 100 | pi = 2 * n * ad; |
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| 101 | } |
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| 102 | |||
| 103 | if((int)(100000000*pi)!=PI_10e8) |
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| 104 | panic("tid%d: pi*10e8=%d\n", THREAD->tid, (int) 100000000*pi); |
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| 91 | jermar | 105 | } |
| 92 | jermar | 106 | |
| 107 | atomic_inc((int *) &threads_ok); |
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| 91 | jermar | 108 | } |
| 109 | |||
| 110 | |||
| 84 | vana | 111 | void test(void) |
| 112 | { |
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| 86 | jermar | 113 | thread_t *t; |
| 114 | int i; |
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| 84 | vana | 115 | |
| 91 | jermar | 116 | waitq_initialize(&can_start); |
| 117 | |||
| 118 | printf("FPU test #1\n"); |
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| 119 | printf("Creating %d threads... ", THREADS); |
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| 120 | |||
| 121 | for (i=0; i<THREADS/2; i++) { |
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| 122 | if (!(t = thread_create(e, NULL, TASK, 0))) |
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| 123 | panic("could not create thread\n"); |
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| 86 | jermar | 124 | thread_ready(t); |
| 91 | jermar | 125 | if (!(t = thread_create(pi, NULL, TASK, 0))) |
| 126 | panic("could not create thread\n"); |
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| 127 | thread_ready(t); |
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| 86 | jermar | 128 | } |
| 91 | jermar | 129 | printf("ok\n"); |
| 90 | vana | 130 | |
| 91 | jermar | 131 | thread_sleep(1); |
| 132 | waitq_wakeup(&can_start, WAKEUP_ALL); |
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| 84 | vana | 133 | |
| 91 | jermar | 134 | while (threads_ok != THREADS) |
| 135 | ; |
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| 136 | |||
| 137 | printf("Test passed.\n"); |
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| 84 | vana | 138 | } |