Rev 2020 | Rev 2029 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
Rev | Author | Line No. | Line |
---|---|---|---|
86 | jermar | 1 | /* |
2 | * Copyright (C) 2005 Jakub Vana |
||
91 | jermar | 3 | * Copyright (C) 2005 Jakub Jermar |
86 | jermar | 4 | * All rights reserved. |
5 | * |
||
6 | * Redistribution and use in source and binary forms, with or without |
||
7 | * modification, are permitted provided that the following conditions |
||
8 | * are met: |
||
9 | * |
||
10 | * - Redistributions of source code must retain the above copyright |
||
11 | * notice, this list of conditions and the following disclaimer. |
||
12 | * - Redistributions in binary form must reproduce the above copyright |
||
13 | * notice, this list of conditions and the following disclaimer in the |
||
14 | * documentation and/or other materials provided with the distribution. |
||
15 | * - The name of the author may not be used to endorse or promote products |
||
16 | * derived from this software without specific prior written permission. |
||
17 | * |
||
18 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
||
19 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
||
20 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
||
21 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
||
22 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
||
23 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
||
24 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
||
25 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
||
26 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
||
27 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
||
28 | */ |
||
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> |
||
34 | #include <panic.h> |
||
35 | |||
36 | #include <test.h> |
||
1104 | jermar | 37 | #include <atomic.h> |
84 | vana | 38 | #include <proc/thread.h> |
39 | |||
94 | jermar | 40 | #include <arch.h> |
1023 | vana | 41 | #include <arch/arch.h> |
94 | jermar | 42 | |
2020 | decky | 43 | |
2027 | decky | 44 | #define THREADS 150 |
1053 | vana | 45 | #define ATTEMPTS 100 |
91 | jermar | 46 | |
47 | #define E_10e8 271828182 |
||
48 | #define PI_10e8 314159265 |
||
49 | |||
1023 | vana | 50 | |
1882 | jermar | 51 | #ifdef KERN_ia32_ARCH_H_ |
2027 | decky | 52 | static inline double sqrt(double x) |
53 | { |
||
54 | double v; |
||
55 | |||
56 | asm ( |
||
57 | "fsqrt\n" |
||
58 | : "=t" (v) |
||
59 | : "0" (x) |
||
60 | ); |
||
61 | |||
62 | return v; |
||
63 | } |
||
1023 | vana | 64 | #endif |
91 | jermar | 65 | |
1882 | jermar | 66 | #ifdef KERN_amd64_ARCH_H_ |
2027 | decky | 67 | static inline double sqrt(double x) |
68 | { |
||
69 | double v; |
||
70 | |||
71 | asm ( |
||
72 | "fsqrt\n" |
||
73 | : "=t" (v) |
||
74 | : "0" (x) |
||
75 | ); |
||
76 | |||
77 | return v; |
||
78 | } |
||
1023 | vana | 79 | #endif |
80 | |||
1882 | jermar | 81 | #ifdef KERN_ia64_ARCH_H_ |
2027 | decky | 82 | |
83 | #undef PI_10e8 |
||
84 | #define PI_10e8 3141592 |
||
85 | |||
1023 | vana | 86 | static inline long double sqrt(long double a) |
87 | { |
||
88 | long double x = 1; |
||
89 | long double lx = 0; |
||
90 | |||
2027 | decky | 91 | if (a < 0.00000000000000001) |
92 | return 0; |
||
1023 | vana | 93 | |
2027 | decky | 94 | while(x != lx) { |
95 | lx = x; |
||
96 | x = (x + (a / x)) / 2; |
||
1023 | vana | 97 | } |
2027 | decky | 98 | |
1023 | vana | 99 | return x; |
100 | } |
||
101 | #endif |
||
102 | |||
103 | |||
483 | jermar | 104 | static atomic_t threads_ok; |
2027 | decky | 105 | static atomic_t threads_fault; |
91 | jermar | 106 | static waitq_t can_start; |
107 | |||
86 | jermar | 108 | static void e(void *data) |
84 | vana | 109 | { |
92 | jermar | 110 | int i; |
91 | jermar | 111 | double e,d,le,f; |
112 | |||
1658 | vana | 113 | thread_detach(THREAD); |
114 | |||
91 | jermar | 115 | waitq_sleep(&can_start); |
116 | |||
92 | jermar | 117 | for (i = 0; i<ATTEMPTS; i++) { |
2027 | decky | 118 | le = -1; |
119 | e = 0; |
||
120 | f = 1; |
||
92 | jermar | 121 | |
2027 | decky | 122 | for (d = 1; e != le; d *= f, f += 1) { |
123 | le = e; |
||
124 | e = e + 1 / d; |
||
92 | jermar | 125 | } |
126 | |||
2027 | decky | 127 | if ((int) (100000000 * e) != E_10e8) { |
128 | printf("tid%d: e*10e8=%zd should be %zd\n", THREAD->tid, (unative_t) (100000000 * e), (unative_t) E_10e8); |
||
129 | atomic_inc(&threads_fault); |
||
130 | break; |
||
131 | } |
||
86 | jermar | 132 | } |
119 | jermar | 133 | atomic_inc(&threads_ok); |
84 | vana | 134 | } |
135 | |||
91 | jermar | 136 | static void pi(void *data) |
137 | { |
||
92 | jermar | 138 | int i; |
125 | jermar | 139 | double lpi, pi; |
140 | double n, ab, ad; |
||
1658 | vana | 141 | |
142 | thread_detach(THREAD); |
||
84 | vana | 143 | |
91 | jermar | 144 | waitq_sleep(&can_start); |
84 | vana | 145 | |
2027 | decky | 146 | for (i = 0; i < ATTEMPTS; i++) { |
92 | jermar | 147 | lpi = -1; |
148 | pi = 0; |
||
91 | jermar | 149 | |
2027 | decky | 150 | for (n = 2, ab = sqrt(2); lpi != pi; n *= 2, ab = ad) { |
125 | jermar | 151 | double sc, cd; |
92 | jermar | 152 | |
2027 | decky | 153 | sc = sqrt(1 - (ab * ab / 4)); |
125 | jermar | 154 | cd = 1 - sc; |
2027 | decky | 155 | ad = sqrt(ab * ab / 4 + cd * cd); |
125 | jermar | 156 | lpi = pi; |
157 | pi = 2 * n * ad; |
||
158 | } |
||
92 | jermar | 159 | |
1882 | jermar | 160 | #ifdef KERN_ia64_ARCH_H_ |
2027 | decky | 161 | if ((int) (1000000 * pi) != PI_10e8) { |
162 | printf("tid%d: pi*10e8=%zd should be %zd\n", THREAD->tid, (unative_t) (1000000 * pi), (unative_t) (PI_10e8 / 100)); |
||
163 | atomic_inc(&threads_fault); |
||
164 | break; |
||
165 | } |
||
1023 | vana | 166 | #else |
2027 | decky | 167 | if ((int) (100000000 * pi) != PI_10e8) { |
168 | printf("tid%d: pi*10e8=%zd should be %zd\n", THREAD->tid, (unative_t) (100000000 * pi), (unative_t) PI_10e8); |
||
169 | atomic_inc(&threads_fault); |
||
170 | break; |
||
171 | } |
||
1023 | vana | 172 | #endif |
91 | jermar | 173 | } |
119 | jermar | 174 | atomic_inc(&threads_ok); |
91 | jermar | 175 | } |
176 | |||
2027 | decky | 177 | char * test_fpu1(void) |
84 | vana | 178 | { |
2027 | decky | 179 | unsigned int i, total = 0; |
84 | vana | 180 | |
91 | jermar | 181 | waitq_initialize(&can_start); |
2027 | decky | 182 | atomic_set(&threads_ok, 0); |
183 | atomic_set(&threads_fault, 0); |
||
184 | printf("Creating %d threads... ", 2 * THREADS); |
||
91 | jermar | 185 | |
2027 | decky | 186 | for (i = 0; i < THREADS; i++) { |
187 | thread_t *t; |
||
188 | |||
189 | if (!(t = thread_create(e, NULL, TASK, 0, "e"))) { |
||
190 | printf("could not create thread %d\n", 2 * i); |
||
191 | break; |
||
192 | } |
||
86 | jermar | 193 | thread_ready(t); |
2027 | decky | 194 | total++; |
195 | |||
196 | if (!(t = thread_create(pi, NULL, TASK, 0, "pi"))) { |
||
197 | printf("could not create thread %d\n", 2 * i + 1); |
||
198 | break; |
||
199 | } |
||
91 | jermar | 200 | thread_ready(t); |
2027 | decky | 201 | total++; |
86 | jermar | 202 | } |
91 | jermar | 203 | printf("ok\n"); |
90 | vana | 204 | |
91 | jermar | 205 | thread_sleep(1); |
206 | waitq_wakeup(&can_start, WAKEUP_ALL); |
||
2027 | decky | 207 | |
208 | while (atomic_get(&threads_ok) != total) { |
||
209 | printf("Threads left: %d\n", total - atomic_get(&threads_ok)); |
||
210 | thread_sleep(1); |
||
211 | } |
||
212 | |||
213 | if (atomic_get(&threads_fault) == 0) |
||
214 | return NULL; |
||
215 | |||
216 | return "Test failed"; |
||
84 | vana | 217 | } |
2020 | decky | 218 | |
219 | #endif |