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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 | |
2027 | decky | 30 | #if (defined(ia32) || defined(amd64) || defined(ia64) || defined(ia32xen)) |
31 | |||
84 | vana | 32 | #include <print.h> |
33 | #include <debug.h> |
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34 | |||
35 | #include <test.h> |
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1104 | jermar | 36 | #include <atomic.h> |
84 | vana | 37 | #include <proc/thread.h> |
38 | |||
94 | jermar | 39 | #include <arch.h> |
1023 | vana | 40 | #include <arch/arch.h> |
94 | jermar | 41 | |
2020 | decky | 42 | |
2027 | decky | 43 | #define THREADS 150 |
1053 | vana | 44 | #define ATTEMPTS 100 |
91 | jermar | 45 | |
46 | #define E_10e8 271828182 |
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47 | #define PI_10e8 314159265 |
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48 | |||
1023 | vana | 49 | |
1882 | jermar | 50 | #ifdef KERN_ia32_ARCH_H_ |
2027 | decky | 51 | static inline double sqrt(double x) |
52 | { |
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53 | double v; |
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54 | |||
55 | asm ( |
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56 | "fsqrt\n" |
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57 | : "=t" (v) |
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58 | : "0" (x) |
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59 | ); |
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60 | |||
61 | return v; |
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62 | } |
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1023 | vana | 63 | #endif |
91 | jermar | 64 | |
1882 | jermar | 65 | #ifdef KERN_amd64_ARCH_H_ |
2027 | decky | 66 | static inline double sqrt(double x) |
67 | { |
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68 | double v; |
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69 | |||
70 | asm ( |
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71 | "fsqrt\n" |
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72 | : "=t" (v) |
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73 | : "0" (x) |
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74 | ); |
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75 | |||
76 | return v; |
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77 | } |
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1023 | vana | 78 | #endif |
79 | |||
1882 | jermar | 80 | #ifdef KERN_ia64_ARCH_H_ |
2027 | decky | 81 | |
82 | #undef PI_10e8 |
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83 | #define PI_10e8 3141592 |
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84 | |||
1023 | vana | 85 | static inline long double sqrt(long double a) |
86 | { |
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87 | long double x = 1; |
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88 | long double lx = 0; |
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89 | |||
2027 | decky | 90 | if (a < 0.00000000000000001) |
91 | return 0; |
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1023 | vana | 92 | |
2027 | decky | 93 | while(x != lx) { |
94 | lx = x; |
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95 | x = (x + (a / x)) / 2; |
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1023 | vana | 96 | } |
2027 | decky | 97 | |
1023 | vana | 98 | return x; |
99 | } |
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100 | #endif |
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101 | |||
102 | |||
483 | jermar | 103 | static atomic_t threads_ok; |
2027 | decky | 104 | static atomic_t threads_fault; |
91 | jermar | 105 | static waitq_t can_start; |
106 | |||
86 | jermar | 107 | static void e(void *data) |
84 | vana | 108 | { |
92 | jermar | 109 | int i; |
91 | jermar | 110 | double e,d,le,f; |
111 | |||
1658 | vana | 112 | thread_detach(THREAD); |
113 | |||
91 | jermar | 114 | waitq_sleep(&can_start); |
115 | |||
92 | jermar | 116 | for (i = 0; i<ATTEMPTS; i++) { |
2027 | decky | 117 | le = -1; |
118 | e = 0; |
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119 | f = 1; |
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92 | jermar | 120 | |
2027 | decky | 121 | for (d = 1; e != le; d *= f, f += 1) { |
122 | le = e; |
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123 | e = e + 1 / d; |
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92 | jermar | 124 | } |
125 | |||
2027 | decky | 126 | if ((int) (100000000 * e) != E_10e8) { |
127 | printf("tid%d: e*10e8=%zd should be %zd\n", THREAD->tid, (unative_t) (100000000 * e), (unative_t) E_10e8); |
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128 | atomic_inc(&threads_fault); |
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129 | break; |
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130 | } |
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86 | jermar | 131 | } |
119 | jermar | 132 | atomic_inc(&threads_ok); |
84 | vana | 133 | } |
134 | |||
91 | jermar | 135 | static void pi(void *data) |
136 | { |
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92 | jermar | 137 | int i; |
125 | jermar | 138 | double lpi, pi; |
139 | double n, ab, ad; |
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1658 | vana | 140 | |
141 | thread_detach(THREAD); |
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84 | vana | 142 | |
91 | jermar | 143 | waitq_sleep(&can_start); |
84 | vana | 144 | |
2027 | decky | 145 | for (i = 0; i < ATTEMPTS; i++) { |
92 | jermar | 146 | lpi = -1; |
147 | pi = 0; |
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91 | jermar | 148 | |
2027 | decky | 149 | for (n = 2, ab = sqrt(2); lpi != pi; n *= 2, ab = ad) { |
125 | jermar | 150 | double sc, cd; |
92 | jermar | 151 | |
2027 | decky | 152 | sc = sqrt(1 - (ab * ab / 4)); |
125 | jermar | 153 | cd = 1 - sc; |
2027 | decky | 154 | ad = sqrt(ab * ab / 4 + cd * cd); |
125 | jermar | 155 | lpi = pi; |
156 | pi = 2 * n * ad; |
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157 | } |
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92 | jermar | 158 | |
1882 | jermar | 159 | #ifdef KERN_ia64_ARCH_H_ |
2027 | decky | 160 | if ((int) (1000000 * pi) != PI_10e8) { |
161 | printf("tid%d: pi*10e8=%zd should be %zd\n", THREAD->tid, (unative_t) (1000000 * pi), (unative_t) (PI_10e8 / 100)); |
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162 | atomic_inc(&threads_fault); |
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163 | break; |
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164 | } |
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1023 | vana | 165 | #else |
2027 | decky | 166 | if ((int) (100000000 * pi) != PI_10e8) { |
167 | printf("tid%d: pi*10e8=%zd should be %zd\n", THREAD->tid, (unative_t) (100000000 * pi), (unative_t) PI_10e8); |
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168 | atomic_inc(&threads_fault); |
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169 | break; |
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170 | } |
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1023 | vana | 171 | #endif |
91 | jermar | 172 | } |
119 | jermar | 173 | atomic_inc(&threads_ok); |
91 | jermar | 174 | } |
175 | |||
2027 | decky | 176 | char * test_fpu1(void) |
84 | vana | 177 | { |
2027 | decky | 178 | unsigned int i, total = 0; |
84 | vana | 179 | |
91 | jermar | 180 | waitq_initialize(&can_start); |
2027 | decky | 181 | atomic_set(&threads_ok, 0); |
182 | atomic_set(&threads_fault, 0); |
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183 | printf("Creating %d threads... ", 2 * THREADS); |
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91 | jermar | 184 | |
2027 | decky | 185 | for (i = 0; i < THREADS; i++) { |
186 | thread_t *t; |
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187 | |||
2042 | decky | 188 | if (!(t = thread_create(e, NULL, TASK, 0, "e", false))) { |
2027 | decky | 189 | printf("could not create thread %d\n", 2 * i); |
190 | break; |
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191 | } |
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86 | jermar | 192 | thread_ready(t); |
2027 | decky | 193 | total++; |
194 | |||
2042 | decky | 195 | if (!(t = thread_create(pi, NULL, TASK, 0, "pi", false))) { |
2027 | decky | 196 | printf("could not create thread %d\n", 2 * i + 1); |
197 | break; |
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198 | } |
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91 | jermar | 199 | thread_ready(t); |
2027 | decky | 200 | total++; |
86 | jermar | 201 | } |
91 | jermar | 202 | printf("ok\n"); |
90 | vana | 203 | |
91 | jermar | 204 | thread_sleep(1); |
205 | waitq_wakeup(&can_start, WAKEUP_ALL); |
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2027 | decky | 206 | |
207 | while (atomic_get(&threads_ok) != total) { |
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208 | printf("Threads left: %d\n", total - atomic_get(&threads_ok)); |
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209 | thread_sleep(1); |
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210 | } |
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211 | |||
212 | if (atomic_get(&threads_fault) == 0) |
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213 | return NULL; |
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214 | |||
215 | return "Test failed"; |
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84 | vana | 216 | } |
2020 | decky | 217 | |
218 | #endif |