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52 vana 1
/*
2071 jermar 2
 * Copyright (c) 2005 Jakub Vana
92 jermar 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.
1702 cejka 27
 */
28
 
1877 jermar 29
/** @addtogroup ia64   
1702 cejka 30
 * @{
31
 */
32
/** @file
92 jermar 33
 *
34
 */
52 vana 35
 
36
#include <fpu_context.h>
1023 vana 37
#include <arch/register.h>
993 jermar 38
#include <print.h>
52 vana 39
 
1877 jermar 40
void fpu_context_save(fpu_context_t *fctx)
41
{
42
    asm volatile (
43
        "stf.spill [%0] = f32, 0x80\n"
44
        "stf.spill [%1] = f33, 0x80\n"
45
        "stf.spill [%2] = f34, 0x80\n"
46
        "stf.spill [%3] = f35, 0x80\n"
47
        "stf.spill [%4] = f36, 0x80\n"
48
        "stf.spill [%5] = f37, 0x80\n"
49
        "stf.spill [%6] = f38, 0x80\n"
50
        "stf.spill [%7] = f39, 0x80\n;;"
1053 vana 51
 
1877 jermar 52
        "stf.spill [%0] = f40, 0x80\n"
53
        "stf.spill [%1] = f41, 0x80\n"
54
        "stf.spill [%2] = f42, 0x80\n"
55
        "stf.spill [%3] = f43, 0x80\n"
56
        "stf.spill [%4] = f44, 0x80\n"
57
        "stf.spill [%5] = f45, 0x80\n"
58
        "stf.spill [%6] = f46, 0x80\n"
59
        "stf.spill [%7] = f47, 0x80\n;;"
1053 vana 60
 
1877 jermar 61
        "stf.spill [%0] = f48, 0x80\n"
62
        "stf.spill [%1] = f49, 0x80\n"
63
        "stf.spill [%2] = f50, 0x80\n"
64
        "stf.spill [%3] = f51, 0x80\n"
65
        "stf.spill [%4] = f52, 0x80\n"
66
        "stf.spill [%5] = f53, 0x80\n"
67
        "stf.spill [%6] = f54, 0x80\n"
68
        "stf.spill [%7] = f55, 0x80\n;;"
979 vana 69
 
1877 jermar 70
        "stf.spill [%0] = f56, 0x80\n"
71
        "stf.spill [%1] = f57, 0x80\n"
72
        "stf.spill [%2] = f58, 0x80\n"
73
        "stf.spill [%3] = f59, 0x80\n"
74
        "stf.spill [%4] = f60, 0x80\n"
75
        "stf.spill [%5] = f61, 0x80\n"
76
        "stf.spill [%6] = f62, 0x80\n"
77
        "stf.spill [%7] = f63, 0x80\n;;"
979 vana 78
 
1877 jermar 79
        "stf.spill [%0] = f64, 0x80\n"
80
        "stf.spill [%1] = f65, 0x80\n"
81
        "stf.spill [%2] = f66, 0x80\n"
82
        "stf.spill [%3] = f67, 0x80\n"
83
        "stf.spill [%4] = f68, 0x80\n"
84
        "stf.spill [%5] = f69, 0x80\n"
85
        "stf.spill [%6] = f70, 0x80\n"
86
        "stf.spill [%7] = f71, 0x80\n;;"
979 vana 87
 
1877 jermar 88
        "stf.spill [%0] = f72, 0x80\n"
89
        "stf.spill [%1] = f73, 0x80\n"
90
        "stf.spill [%2] = f74, 0x80\n"
91
        "stf.spill [%3] = f75, 0x80\n"
92
        "stf.spill [%4] = f76, 0x80\n"
93
        "stf.spill [%5] = f77, 0x80\n"
94
        "stf.spill [%6] = f78, 0x80\n"
95
        "stf.spill [%7] = f79, 0x80\n;;"
979 vana 96
 
1877 jermar 97
        "stf.spill [%0] = f80, 0x80\n"
98
        "stf.spill [%1] = f81, 0x80\n"
99
        "stf.spill [%2] = f82, 0x80\n"
100
        "stf.spill [%3] = f83, 0x80\n"
101
        "stf.spill [%4] = f84, 0x80\n"
102
        "stf.spill [%5] = f85, 0x80\n"
103
        "stf.spill [%6] = f86, 0x80\n"
104
        "stf.spill [%7] = f87, 0x80\n;;"
979 vana 105
 
1877 jermar 106
        "stf.spill [%0] = f88, 0x80\n"
107
        "stf.spill [%1] = f89, 0x80\n"
108
        "stf.spill [%2] = f90, 0x80\n"
109
        "stf.spill [%3] = f91, 0x80\n"
110
        "stf.spill [%4] = f92, 0x80\n"
111
        "stf.spill [%5] = f93, 0x80\n"
112
        "stf.spill [%6] = f94, 0x80\n"
113
        "stf.spill [%7] = f95, 0x80\n;;"
979 vana 114
 
1877 jermar 115
        "stf.spill [%0] = f96, 0x80\n"
116
        "stf.spill [%1] = f97, 0x80\n"
117
        "stf.spill [%2] = f98, 0x80\n"
118
        "stf.spill [%3] = f99, 0x80\n"
119
        "stf.spill [%4] = f100, 0x80\n"
120
        "stf.spill [%5] = f101, 0x80\n"
121
        "stf.spill [%6] = f102, 0x80\n"
122
        "stf.spill [%7] = f103, 0x80\n;;"
979 vana 123
 
1877 jermar 124
        "stf.spill [%0] = f104, 0x80\n"
125
        "stf.spill [%1] = f105, 0x80\n"
126
        "stf.spill [%2] = f106, 0x80\n"
127
        "stf.spill [%3] = f107, 0x80\n"
128
        "stf.spill [%4] = f108, 0x80\n"
129
        "stf.spill [%5] = f109, 0x80\n"
130
        "stf.spill [%6] = f110, 0x80\n"
131
        "stf.spill [%7] = f111, 0x80\n;;"
979 vana 132
 
1877 jermar 133
        "stf.spill [%0] = f112, 0x80\n"
134
        "stf.spill [%1] = f113, 0x80\n"
135
        "stf.spill [%2] = f114, 0x80\n"
136
        "stf.spill [%3] = f115, 0x80\n"
137
        "stf.spill [%4] = f116, 0x80\n"
138
        "stf.spill [%5] = f117, 0x80\n"
139
        "stf.spill [%6] = f118, 0x80\n"
140
        "stf.spill [%7] = f119, 0x80\n;;"
979 vana 141
 
1877 jermar 142
        "stf.spill [%0] = f120, 0x80\n"
143
        "stf.spill [%1] = f121, 0x80\n"
144
        "stf.spill [%2] = f122, 0x80\n"
145
        "stf.spill [%3] = f123, 0x80\n"
146
        "stf.spill [%4] = f124, 0x80\n"
147
        "stf.spill [%5] = f125, 0x80\n"
148
        "stf.spill [%6] = f126, 0x80\n"
149
        "stf.spill [%7] = f127, 0x80\n;;"
979 vana 150
 
1877 jermar 151
        :
3766 jermar 152
        : "r" (&((fctx->fr)[0])), "r" (&((fctx->fr)[1])),
153
          "r" (&((fctx->fr)[2])), "r" (&((fctx->fr)[3])),
154
          "r" (&((fctx->fr)[4])), "r" (&((fctx->fr)[5])),
155
          "r" (&((fctx->fr)[6])), "r" (&((fctx->fr)[7]))
1877 jermar 156
    );
979 vana 157
 
52 vana 158
}
159
 
57 vana 160
void fpu_context_restore(fpu_context_t *fctx)
52 vana 161
{
1877 jermar 162
    asm volatile (
163
        "ldf.fill f32 = [%0], 0x80\n"
164
        "ldf.fill f33 = [%1], 0x80\n"
165
        "ldf.fill f34 = [%2], 0x80\n"
166
        "ldf.fill f35 = [%3], 0x80\n"
167
        "ldf.fill f36 = [%4], 0x80\n"
168
        "ldf.fill f37 = [%5], 0x80\n"
169
        "ldf.fill f38 = [%6], 0x80\n"
170
        "ldf.fill f39 = [%7], 0x80\n;;"
1053 vana 171
 
1877 jermar 172
        "ldf.fill f40 = [%0], 0x80\n"
173
        "ldf.fill f41 = [%1], 0x80\n"
174
        "ldf.fill f42 = [%2], 0x80\n"
175
        "ldf.fill f43 = [%3], 0x80\n"
176
        "ldf.fill f44 = [%4], 0x80\n"
177
        "ldf.fill f45 = [%5], 0x80\n"
178
        "ldf.fill f46 = [%6], 0x80\n"
179
        "ldf.fill f47 = [%7], 0x80\n;;"
979 vana 180
 
1877 jermar 181
        "ldf.fill f48 = [%0], 0x80\n"
182
        "ldf.fill f49 = [%1], 0x80\n"
183
        "ldf.fill f50 = [%2], 0x80\n"
184
        "ldf.fill f51 = [%3], 0x80\n"
185
        "ldf.fill f52 = [%4], 0x80\n"
186
        "ldf.fill f53 = [%5], 0x80\n"
187
        "ldf.fill f54 = [%6], 0x80\n"
188
        "ldf.fill f55 = [%7], 0x80\n;;"
979 vana 189
 
1877 jermar 190
        "ldf.fill f56 = [%0], 0x80\n"
191
        "ldf.fill f57 = [%1], 0x80\n"
192
        "ldf.fill f58 = [%2], 0x80\n"
193
        "ldf.fill f59 = [%3], 0x80\n"
194
        "ldf.fill f60 = [%4], 0x80\n"
195
        "ldf.fill f61 = [%5], 0x80\n"
196
        "ldf.fill f62 = [%6], 0x80\n"
197
        "ldf.fill f63 = [%7], 0x80\n;;"
979 vana 198
 
1877 jermar 199
        "ldf.fill f64 = [%0], 0x80\n"
200
        "ldf.fill f65 = [%1], 0x80\n"
201
        "ldf.fill f66 = [%2], 0x80\n"
202
        "ldf.fill f67 = [%3], 0x80\n"
203
        "ldf.fill f68 = [%4], 0x80\n"
204
        "ldf.fill f69 = [%5], 0x80\n"
205
        "ldf.fill f70 = [%6], 0x80\n"
206
        "ldf.fill f71 = [%7], 0x80\n;;"
979 vana 207
 
1877 jermar 208
        "ldf.fill f72 = [%0], 0x80\n"
209
        "ldf.fill f73 = [%1], 0x80\n"
210
        "ldf.fill f74 = [%2], 0x80\n"
211
        "ldf.fill f75 = [%3], 0x80\n"
212
        "ldf.fill f76 = [%4], 0x80\n"
213
        "ldf.fill f77 = [%5], 0x80\n"
214
        "ldf.fill f78 = [%6], 0x80\n"
215
        "ldf.fill f79 = [%7], 0x80\n;;"
979 vana 216
 
1877 jermar 217
        "ldf.fill f80 = [%0], 0x80\n"
218
        "ldf.fill f81 = [%1], 0x80\n"
219
        "ldf.fill f82 = [%2], 0x80\n"
220
        "ldf.fill f83 = [%3], 0x80\n"
221
        "ldf.fill f84 = [%4], 0x80\n"
222
        "ldf.fill f85 = [%5], 0x80\n"
223
        "ldf.fill f86 = [%6], 0x80\n"
224
        "ldf.fill f87 = [%7], 0x80\n;;"
979 vana 225
 
1877 jermar 226
        "ldf.fill f88 = [%0], 0x80\n"
227
        "ldf.fill f89 = [%1], 0x80\n"
228
        "ldf.fill f90 = [%2], 0x80\n"
229
        "ldf.fill f91 = [%3], 0x80\n"
230
        "ldf.fill f92 = [%4], 0x80\n"
231
        "ldf.fill f93 = [%5], 0x80\n"
232
        "ldf.fill f94 = [%6], 0x80\n"
233
        "ldf.fill f95 = [%7], 0x80\n;;"
979 vana 234
 
1877 jermar 235
        "ldf.fill f96 = [%0], 0x80\n"
236
        "ldf.fill f97 = [%1], 0x80\n"
237
        "ldf.fill f98 = [%2], 0x80\n"
238
        "ldf.fill f99 = [%3], 0x80\n"
239
        "ldf.fill f100 = [%4], 0x80\n"
240
        "ldf.fill f101 = [%5], 0x80\n"
241
        "ldf.fill f102 = [%6], 0x80\n"
242
        "ldf.fill f103 = [%7], 0x80\n;;"
979 vana 243
 
1877 jermar 244
        "ldf.fill f104 = [%0], 0x80\n"
245
        "ldf.fill f105 = [%1], 0x80\n"
246
        "ldf.fill f106 = [%2], 0x80\n"
247
        "ldf.fill f107 = [%3], 0x80\n"
248
        "ldf.fill f108 = [%4], 0x80\n"
249
        "ldf.fill f109 = [%5], 0x80\n"
250
        "ldf.fill f110 = [%6], 0x80\n"
251
        "ldf.fill f111 = [%7], 0x80\n;;"
979 vana 252
 
1877 jermar 253
        "ldf.fill f112 = [%0], 0x80\n"
254
        "ldf.fill f113 = [%1], 0x80\n"
255
        "ldf.fill f114 = [%2], 0x80\n"
256
        "ldf.fill f115 = [%3], 0x80\n"
257
        "ldf.fill f116 = [%4], 0x80\n"
258
        "ldf.fill f117 = [%5], 0x80\n"
259
        "ldf.fill f118 = [%6], 0x80\n"
260
        "ldf.fill f119 = [%7], 0x80\n;;"
979 vana 261
 
1877 jermar 262
        "ldf.fill f120 = [%0], 0x80\n"
263
        "ldf.fill f121 = [%1], 0x80\n"
264
        "ldf.fill f122 = [%2], 0x80\n"
265
        "ldf.fill f123 = [%3], 0x80\n"
266
        "ldf.fill f124 = [%4], 0x80\n"
267
        "ldf.fill f125 = [%5], 0x80\n"
268
        "ldf.fill f126 = [%6], 0x80\n"
269
        "ldf.fill f127 = [%7], 0x80\n;;"
979 vana 270
 
1877 jermar 271
        :
3766 jermar 272
        : "r" (&((fctx->fr)[0])), "r" (&((fctx->fr)[1])),
273
          "r" (&((fctx->fr)[2])), "r" (&((fctx->fr)[3])),
274
          "r" (&((fctx->fr)[4])), "r" (&((fctx->fr)[5])),
275
          "r" (&((fctx->fr)[6])), "r" (&((fctx->fr)[7]))
1877 jermar 276
    );
52 vana 277
}
278
 
1053 vana 279
void fpu_enable(void)
1023 vana 280
{
3766 jermar 281
    uint64_t a = 0;
979 vana 282
 
1877 jermar 283
    asm volatile (
284
        "rsm %0 ;;"
285
        "srlz.i\n"
286
        "srlz.d ;;\n"
287
        :
288
        : "i" (PSR_DFH_MASK)
289
    );
290
 
291
    asm volatile (
292
        "mov %0 = ar.fpsr ;;\n"
293
        "or %0 = %0,%1 ;;\n"
294
        "mov ar.fpsr = %0 ;;\n"
295
        : "+r" (a)
296
        : "r" (0x38)
297
    );
1023 vana 298
}
979 vana 299
 
1053 vana 300
void fpu_disable(void)
1023 vana 301
{
1877 jermar 302
    uint64_t a = 0 ;
1053 vana 303
 
1877 jermar 304
    asm volatile (
305
        "ssm %0 ;;\n"
306
        "srlz.i\n"
307
        "srlz.d ;;\n"
308
        :
309
        : "i" (PSR_DFH_MASK)
310
    );
1023 vana 311
 
1877 jermar 312
    asm volatile (
313
        "mov %0 = ar.fpsr ;;\n"
314
        "or %0 = %0,%1 ;;\n"
315
        "mov ar.fpsr = %0 ;;\n"
316
        : "+r" (a)
317
        : "r" (0x38)
318
    );
1023 vana 319
}
320
 
321
void fpu_init(void)
322
{
1877 jermar 323
    uint64_t a = 0 ;
1053 vana 324
 
1877 jermar 325
    asm volatile (
326
        "mov %0 = ar.fpsr ;;\n"
327
        "or %0 = %0,%1 ;;\n"
328
        "mov ar.fpsr = %0 ;;\n"
329
        : "+r" (a)
330
        : "r" (0x38)
331
    );
1023 vana 332
 
1877 jermar 333
    asm volatile (
334
        "mov f2 = f0\n"
335
        "mov f3 = f0\n"
336
        "mov f4 = f0\n"
337
        "mov f5 = f0\n"
338
        "mov f6 = f0\n"
339
        "mov f7 = f0\n"
340
        "mov f8 = f0\n"
341
        "mov f9 = f0\n"
1023 vana 342
 
1877 jermar 343
        "mov f10 = f0\n"
344
        "mov f11 = f0\n"
345
        "mov f12 = f0\n"
346
        "mov f13 = f0\n"
347
        "mov f14 = f0\n"
348
        "mov f15 = f0\n"
349
        "mov f16 = f0\n"
350
        "mov f17 = f0\n"
351
        "mov f18 = f0\n"
352
        "mov f19 = f0\n"
1023 vana 353
 
1877 jermar 354
        "mov f20 = f0\n"
355
        "mov f21 = f0\n"
356
        "mov f22 = f0\n"
357
        "mov f23 = f0\n"
358
        "mov f24 = f0\n"
359
        "mov f25 = f0\n"
360
        "mov f26 = f0\n"
361
        "mov f27 = f0\n"
362
        "mov f28 = f0\n"
363
        "mov f29 = f0\n"
1023 vana 364
 
1877 jermar 365
        "mov f30 = f0\n"
366
        "mov f31 = f0\n"
367
        "mov f32 = f0\n"
368
        "mov f33 = f0\n"
369
        "mov f34 = f0\n"
370
        "mov f35 = f0\n"
371
        "mov f36 = f0\n"
372
        "mov f37 = f0\n"
373
        "mov f38 = f0\n"
374
        "mov f39 = f0\n"
1023 vana 375
 
1877 jermar 376
        "mov f40 = f0\n"
377
        "mov f41 = f0\n"
378
        "mov f42 = f0\n"
379
        "mov f43 = f0\n"
380
        "mov f44 = f0\n"
381
        "mov f45 = f0\n"
382
        "mov f46 = f0\n"
383
        "mov f47 = f0\n"
384
        "mov f48 = f0\n"
385
        "mov f49 = f0\n"
1023 vana 386
 
1877 jermar 387
        "mov f50 = f0\n"
388
        "mov f51 = f0\n"
389
        "mov f52 = f0\n"
390
        "mov f53 = f0\n"
391
        "mov f54 = f0\n"
392
        "mov f55 = f0\n"
393
        "mov f56 = f0\n"
394
        "mov f57 = f0\n"
395
        "mov f58 = f0\n"
396
        "mov f59 = f0\n"
1023 vana 397
 
1877 jermar 398
        "mov f60 = f0\n"
399
        "mov f61 = f0\n"
400
        "mov f62 = f0\n"
401
        "mov f63 = f0\n"
402
        "mov f64 = f0\n"
403
        "mov f65 = f0\n"
404
        "mov f66 = f0\n"
405
        "mov f67 = f0\n"
406
        "mov f68 = f0\n"
407
        "mov f69 = f0\n"
1023 vana 408
 
1877 jermar 409
        "mov f70 = f0\n"
410
        "mov f71 = f0\n"
411
        "mov f72 = f0\n"
412
        "mov f73 = f0\n"
413
        "mov f74 = f0\n"
414
        "mov f75 = f0\n"
415
        "mov f76 = f0\n"
416
        "mov f77 = f0\n"
417
        "mov f78 = f0\n"
418
        "mov f79 = f0\n"
1023 vana 419
 
1877 jermar 420
        "mov f80 = f0\n"
421
        "mov f81 = f0\n"
422
        "mov f82 = f0\n"
423
        "mov f83 = f0\n"
424
        "mov f84 = f0\n"
425
        "mov f85 = f0\n"
426
        "mov f86 = f0\n"
427
        "mov f87 = f0\n"
428
        "mov f88 = f0\n"
429
        "mov f89 = f0\n"
1023 vana 430
 
1877 jermar 431
        "mov f90 = f0\n"
432
        "mov f91 = f0\n"
433
        "mov f92 = f0\n"
434
        "mov f93 = f0\n"
435
        "mov f94 = f0\n"
436
        "mov f95 = f0\n"
437
        "mov f96 = f0\n"
438
        "mov f97 = f0\n"
439
        "mov f98 = f0\n"
440
        "mov f99 = f0\n"
1023 vana 441
 
1877 jermar 442
        "mov f100 = f0\n"
443
        "mov f101 = f0\n"
444
        "mov f102 = f0\n"
445
        "mov f103 = f0\n"
446
        "mov f104 = f0\n"
447
        "mov f105 = f0\n"
448
        "mov f106 = f0\n"
449
        "mov f107 = f0\n"
450
        "mov f108 = f0\n"
451
        "mov f109 = f0\n"
1023 vana 452
 
1877 jermar 453
        "mov f110 = f0\n"
454
        "mov f111 = f0\n"
455
        "mov f112 = f0\n"
456
        "mov f113 = f0\n"
457
        "mov f114 = f0\n"
458
        "mov f115 = f0\n"
459
        "mov f116 = f0\n"
460
        "mov f117 = f0\n"
461
        "mov f118 = f0\n"
462
        "mov f119 = f0\n"
1023 vana 463
 
1877 jermar 464
        "mov f120 = f0\n"
465
        "mov f121 = f0\n"
466
        "mov f122 = f0\n"
467
        "mov f123 = f0\n"
468
        "mov f124 = f0\n"
469
        "mov f125 = f0\n"
470
        "mov f126 = f0\n"
471
        "mov f127 = f0\n"
472
    );
1023 vana 473
 
474
}
475
 
1877 jermar 476
/** @}
1702 cejka 477
 */