source: mainline/kernel/arch/ia64/src/fpu_context.c@ 11675207

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since 11675207 was 11675207, checked in by jermar <jermar@…>, 17 years ago

Move everything to kernel/.
  • Property mode set to 100644
File size: 10.9 KB
RevLine 
[0ca6faa]1/*
[54ca3523]2 * Copyright (C) 2005 Jakub Vana
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.
[b45c443]27 */
28
29 /** @addtogroup ia64
30 * @{
31 */
32/** @file
[54ca3523]33 *
34 */
[0ca6faa]35
36#include <fpu_context.h>
[9e1c942]37#include <arch/register.h>
[1065603e]38#include <print.h>
[0ca6faa]39
[41fa6f2]40
[5581c45e]41void fpu_context_save(fpu_context_t *fctx){
42
[41fa6f2]43 asm volatile(
[5581c45e]44
45 "stf.spill [%0]=f32,0x80\n"
46 "stf.spill [%1]=f33,0x80\n"
47 "stf.spill [%2]=f34,0x80\n"
48 "stf.spill [%3]=f35,0x80\n"
49 "stf.spill [%4]=f36,0x80\n"
50 "stf.spill [%5]=f37,0x80\n"
51 "stf.spill [%6]=f38,0x80\n"
52 "stf.spill [%7]=f39,0x80\n;;"
53
54 "stf.spill [%0]=f40,0x80\n"
55 "stf.spill [%1]=f41,0x80\n"
56 "stf.spill [%2]=f42,0x80\n"
57 "stf.spill [%3]=f43,0x80\n"
58 "stf.spill [%4]=f44,0x80\n"
59 "stf.spill [%5]=f45,0x80\n"
60 "stf.spill [%6]=f46,0x80\n"
61 "stf.spill [%7]=f47,0x80\n;;"
62
63 "stf.spill [%0]=f48,0x80\n"
64 "stf.spill [%1]=f49,0x80\n"
65 "stf.spill [%2]=f50,0x80\n"
66 "stf.spill [%3]=f51,0x80\n"
67 "stf.spill [%4]=f52,0x80\n"
68 "stf.spill [%5]=f53,0x80\n"
69 "stf.spill [%6]=f54,0x80\n"
70 "stf.spill [%7]=f55,0x80\n;;"
71
72 "stf.spill [%0]=f56,0x80\n"
73 "stf.spill [%1]=f57,0x80\n"
74 "stf.spill [%2]=f58,0x80\n"
75 "stf.spill [%3]=f59,0x80\n"
76 "stf.spill [%4]=f60,0x80\n"
77 "stf.spill [%5]=f61,0x80\n"
78 "stf.spill [%6]=f62,0x80\n"
79 "stf.spill [%7]=f63,0x80\n;;"
80
81 "stf.spill [%0]=f64,0x80\n"
82 "stf.spill [%1]=f65,0x80\n"
83 "stf.spill [%2]=f66,0x80\n"
84 "stf.spill [%3]=f67,0x80\n"
85 "stf.spill [%4]=f68,0x80\n"
86 "stf.spill [%5]=f69,0x80\n"
87 "stf.spill [%6]=f70,0x80\n"
88 "stf.spill [%7]=f71,0x80\n;;"
89
90 "stf.spill [%0]=f72,0x80\n"
91 "stf.spill [%1]=f73,0x80\n"
92 "stf.spill [%2]=f74,0x80\n"
93 "stf.spill [%3]=f75,0x80\n"
94 "stf.spill [%4]=f76,0x80\n"
95 "stf.spill [%5]=f77,0x80\n"
96 "stf.spill [%6]=f78,0x80\n"
97 "stf.spill [%7]=f79,0x80\n;;"
98
99 "stf.spill [%0]=f80,0x80\n"
100 "stf.spill [%1]=f81,0x80\n"
101 "stf.spill [%2]=f82,0x80\n"
102 "stf.spill [%3]=f83,0x80\n"
103 "stf.spill [%4]=f84,0x80\n"
104 "stf.spill [%5]=f85,0x80\n"
105 "stf.spill [%6]=f86,0x80\n"
106 "stf.spill [%7]=f87,0x80\n;;"
107
108 "stf.spill [%0]=f88,0x80\n"
109 "stf.spill [%1]=f89,0x80\n"
110 "stf.spill [%2]=f90,0x80\n"
111 "stf.spill [%3]=f91,0x80\n"
112 "stf.spill [%4]=f92,0x80\n"
113 "stf.spill [%5]=f93,0x80\n"
114 "stf.spill [%6]=f94,0x80\n"
115 "stf.spill [%7]=f95,0x80\n;;"
116
117
118 "stf.spill [%0]=f96,0x80\n"
119 "stf.spill [%1]=f97,0x80\n"
120 "stf.spill [%2]=f98,0x80\n"
121 "stf.spill [%3]=f99,0x80\n"
122 "stf.spill [%4]=f100,0x80\n"
123 "stf.spill [%5]=f101,0x80\n"
124 "stf.spill [%6]=f102,0x80\n"
125 "stf.spill [%7]=f103,0x80\n;;"
126
127 "stf.spill [%0]=f104,0x80\n"
128 "stf.spill [%1]=f105,0x80\n"
129 "stf.spill [%2]=f106,0x80\n"
130 "stf.spill [%3]=f107,0x80\n"
131 "stf.spill [%4]=f108,0x80\n"
132 "stf.spill [%5]=f109,0x80\n"
133 "stf.spill [%6]=f110,0x80\n"
134 "stf.spill [%7]=f111,0x80\n;;"
135
136 "stf.spill [%0]=f112,0x80\n"
137 "stf.spill [%1]=f113,0x80\n"
138 "stf.spill [%2]=f114,0x80\n"
139 "stf.spill [%3]=f115,0x80\n"
140 "stf.spill [%4]=f116,0x80\n"
141 "stf.spill [%5]=f117,0x80\n"
142 "stf.spill [%6]=f118,0x80\n"
143 "stf.spill [%7]=f119,0x80\n;;"
144
145 "stf.spill [%0]=f120,0x80\n"
146 "stf.spill [%1]=f121,0x80\n"
147 "stf.spill [%2]=f122,0x80\n"
148 "stf.spill [%3]=f123,0x80\n"
149 "stf.spill [%4]=f124,0x80\n"
150 "stf.spill [%5]=f125,0x80\n"
151 "stf.spill [%6]=f126,0x80\n"
152 "stf.spill [%7]=f127,0x80\n;;"
153
154
155 :
156 :"r" (&((fctx->fr)[0])),"r" (&((fctx->fr)[1])),"r" (&((fctx->fr)[2])),"r" (&((fctx->fr)[3])),
157 "r" (&((fctx->fr)[4])),"r" (&((fctx->fr)[5])),"r" (&((fctx->fr)[6])),"r" (&((fctx->fr)[7]))
158 );
159
[0ca6faa]160}
161
162
[9c926f3]163void fpu_context_restore(fpu_context_t *fctx)
[0ca6faa]164{
[5581c45e]165
[41fa6f2]166 asm volatile(
[5581c45e]167 "ldf.fill f32=[%0],0x80\n"
168 "ldf.fill f33=[%1],0x80\n"
169 "ldf.fill f34=[%2],0x80\n"
170 "ldf.fill f35=[%3],0x80\n"
171 "ldf.fill f36=[%4],0x80\n"
172 "ldf.fill f37=[%5],0x80\n"
173 "ldf.fill f38=[%6],0x80\n"
174 "ldf.fill f39=[%7],0x80\n;;"
175
176 "ldf.fill f40=[%0],0x80\n"
177 "ldf.fill f41=[%1],0x80\n"
178 "ldf.fill f42=[%2],0x80\n"
179 "ldf.fill f43=[%3],0x80\n"
180 "ldf.fill f44=[%4],0x80\n"
181 "ldf.fill f45=[%5],0x80\n"
182 "ldf.fill f46=[%6],0x80\n"
183 "ldf.fill f47=[%7],0x80\n;;"
184
185 "ldf.fill f48=[%0],0x80\n"
186 "ldf.fill f49=[%1],0x80\n"
187 "ldf.fill f50=[%2],0x80\n"
188 "ldf.fill f51=[%3],0x80\n"
189 "ldf.fill f52=[%4],0x80\n"
190 "ldf.fill f53=[%5],0x80\n"
191 "ldf.fill f54=[%6],0x80\n"
192 "ldf.fill f55=[%7],0x80\n;;"
193
194 "ldf.fill f56=[%0],0x80\n"
195 "ldf.fill f57=[%1],0x80\n"
196 "ldf.fill f58=[%2],0x80\n"
197 "ldf.fill f59=[%3],0x80\n"
198 "ldf.fill f60=[%4],0x80\n"
199 "ldf.fill f61=[%5],0x80\n"
200 "ldf.fill f62=[%6],0x80\n"
201 "ldf.fill f63=[%7],0x80\n;;"
202
203 "ldf.fill f64=[%0],0x80\n"
204 "ldf.fill f65=[%1],0x80\n"
205 "ldf.fill f66=[%2],0x80\n"
206 "ldf.fill f67=[%3],0x80\n"
207 "ldf.fill f68=[%4],0x80\n"
208 "ldf.fill f69=[%5],0x80\n"
209 "ldf.fill f70=[%6],0x80\n"
210 "ldf.fill f71=[%7],0x80\n;;"
211
212 "ldf.fill f72=[%0],0x80\n"
213 "ldf.fill f73=[%1],0x80\n"
214 "ldf.fill f74=[%2],0x80\n"
215 "ldf.fill f75=[%3],0x80\n"
216 "ldf.fill f76=[%4],0x80\n"
217 "ldf.fill f77=[%5],0x80\n"
218 "ldf.fill f78=[%6],0x80\n"
219 "ldf.fill f79=[%7],0x80\n;;"
220
221 "ldf.fill f80=[%0],0x80\n"
222 "ldf.fill f81=[%1],0x80\n"
223 "ldf.fill f82=[%2],0x80\n"
224 "ldf.fill f83=[%3],0x80\n"
225 "ldf.fill f84=[%4],0x80\n"
226 "ldf.fill f85=[%5],0x80\n"
227 "ldf.fill f86=[%6],0x80\n"
228 "ldf.fill f87=[%7],0x80\n;;"
229
230 "ldf.fill f88=[%0],0x80\n"
231 "ldf.fill f89=[%1],0x80\n"
232 "ldf.fill f90=[%2],0x80\n"
233 "ldf.fill f91=[%3],0x80\n"
234 "ldf.fill f92=[%4],0x80\n"
235 "ldf.fill f93=[%5],0x80\n"
236 "ldf.fill f94=[%6],0x80\n"
237 "ldf.fill f95=[%7],0x80\n;;"
238
239
240 "ldf.fill f96=[%0],0x80\n"
241 "ldf.fill f97=[%1],0x80\n"
242 "ldf.fill f98=[%2],0x80\n"
243 "ldf.fill f99=[%3],0x80\n"
244 "ldf.fill f100=[%4],0x80\n"
245 "ldf.fill f101=[%5],0x80\n"
246 "ldf.fill f102=[%6],0x80\n"
247 "ldf.fill f103=[%7],0x80\n;;"
248
249 "ldf.fill f104=[%0],0x80\n"
250 "ldf.fill f105=[%1],0x80\n"
251 "ldf.fill f106=[%2],0x80\n"
252 "ldf.fill f107=[%3],0x80\n"
253 "ldf.fill f108=[%4],0x80\n"
254 "ldf.fill f109=[%5],0x80\n"
255 "ldf.fill f110=[%6],0x80\n"
256 "ldf.fill f111=[%7],0x80\n;;"
257
258 "ldf.fill f112=[%0],0x80\n"
259 "ldf.fill f113=[%1],0x80\n"
260 "ldf.fill f114=[%2],0x80\n"
261 "ldf.fill f115=[%3],0x80\n"
262 "ldf.fill f116=[%4],0x80\n"
263 "ldf.fill f117=[%5],0x80\n"
264 "ldf.fill f118=[%6],0x80\n"
265 "ldf.fill f119=[%7],0x80\n;;"
266
267 "ldf.fill f120=[%0],0x80\n"
268 "ldf.fill f121=[%1],0x80\n"
269 "ldf.fill f122=[%2],0x80\n"
270 "ldf.fill f123=[%3],0x80\n"
271 "ldf.fill f124=[%4],0x80\n"
272 "ldf.fill f125=[%5],0x80\n"
273 "ldf.fill f126=[%6],0x80\n"
274 "ldf.fill f127=[%7],0x80\n;;"
275
276
277 :
278 :"r" (&((fctx->fr)[0])),"r" (&((fctx->fr)[1])),"r" (&((fctx->fr)[2])),"r" (&((fctx->fr)[3])),
279 "r" (&((fctx->fr)[4])),"r" (&((fctx->fr)[5])),"r" (&((fctx->fr)[6])),"r" (&((fctx->fr)[7]))
280 );
[0ca6faa]281}
282
[41fa6f2]283void fpu_enable(void)
[9e1c942]284{
[7f1c620]285 uint64_t a = 0 ;
[9e1c942]286 asm volatile(
[41fa6f2]287 "rsm %0;;"
[9e1c942]288 "srlz.i\n"
289 "srlz.d;;\n"
290 :
[41fa6f2]291 :"i" (PSR_DFH_MASK)
292 );
293 asm volatile
294 (
295 "mov %0=ar.fpsr;;\n"
296 "or %0=%0,%1;;\n"
297 "mov ar.fpsr=%0;;\n"
298 : "+r" (a)
299 : "r" (0x38)
[9e1c942]300 );
301
302}
303
[41fa6f2]304void fpu_disable(void)
[9e1c942]305{
[41fa6f2]306
[7f1c620]307 uint64_t a = 0 ;
[9e1c942]308 asm volatile(
[41fa6f2]309 "ssm %0;;\n"
[9e1c942]310 "srlz.i\n"
311 "srlz.d;;\n"
312 :
[41fa6f2]313 :"i" (PSR_DFH_MASK)
314 );
315 asm volatile
316 (
317 "mov %0=ar.fpsr;;\n"
318 "or %0=%0,%1;;\n"
319 "mov ar.fpsr=%0;;\n"
320 : "+r" (a)
321 : "r" (0x38)
[9e1c942]322 );
323
324}
[5581c45e]325
[9e1c942]326void fpu_init(void)
327{
[7f1c620]328 uint64_t a = 0 ;
[9e1c942]329 asm volatile
330 (
331 "mov %0=ar.fpsr;;\n"
332 "or %0=%0,%1;;\n"
333 "mov ar.fpsr=%0;;\n"
334 : "+r" (a)
335 : "r" (0x38)
336 );
[41fa6f2]337
[9e1c942]338 asm volatile(
339 "mov f2=f0\n"
340 "mov f3=f0\n"
341 "mov f4=f0\n"
342 "mov f5=f0\n"
343 "mov f6=f0\n"
344 "mov f7=f0\n"
345 "mov f8=f0\n"
346 "mov f9=f0\n"
347
348 "mov f10=f0\n"
349 "mov f11=f0\n"
350 "mov f12=f0\n"
351 "mov f13=f0\n"
352 "mov f14=f0\n"
353 "mov f15=f0\n"
354 "mov f16=f0\n"
355 "mov f17=f0\n"
356 "mov f18=f0\n"
357 "mov f19=f0\n"
358
359 "mov f20=f0\n"
360 "mov f21=f0\n"
361 "mov f22=f0\n"
362 "mov f23=f0\n"
363 "mov f24=f0\n"
364 "mov f25=f0\n"
365 "mov f26=f0\n"
366 "mov f27=f0\n"
367 "mov f28=f0\n"
368 "mov f29=f0\n"
369
370 "mov f30=f0\n"
371 "mov f31=f0\n"
372 "mov f32=f0\n"
373 "mov f33=f0\n"
374 "mov f34=f0\n"
375 "mov f35=f0\n"
376 "mov f36=f0\n"
377 "mov f37=f0\n"
378 "mov f38=f0\n"
379 "mov f39=f0\n"
380
381 "mov f40=f0\n"
382 "mov f41=f0\n"
383 "mov f42=f0\n"
384 "mov f43=f0\n"
385 "mov f44=f0\n"
386 "mov f45=f0\n"
387 "mov f46=f0\n"
388 "mov f47=f0\n"
389 "mov f48=f0\n"
390 "mov f49=f0\n"
391
392 "mov f50=f0\n"
393 "mov f51=f0\n"
394 "mov f52=f0\n"
395 "mov f53=f0\n"
396 "mov f54=f0\n"
397 "mov f55=f0\n"
398 "mov f56=f0\n"
399 "mov f57=f0\n"
400 "mov f58=f0\n"
401 "mov f59=f0\n"
402
403 "mov f60=f0\n"
404 "mov f61=f0\n"
405 "mov f62=f0\n"
406 "mov f63=f0\n"
407 "mov f64=f0\n"
408 "mov f65=f0\n"
409 "mov f66=f0\n"
410 "mov f67=f0\n"
411 "mov f68=f0\n"
412 "mov f69=f0\n"
413
414 "mov f70=f0\n"
415 "mov f71=f0\n"
416 "mov f72=f0\n"
417 "mov f73=f0\n"
418 "mov f74=f0\n"
419 "mov f75=f0\n"
420 "mov f76=f0\n"
421 "mov f77=f0\n"
422 "mov f78=f0\n"
423 "mov f79=f0\n"
424
425 "mov f80=f0\n"
426 "mov f81=f0\n"
427 "mov f82=f0\n"
428 "mov f83=f0\n"
429 "mov f84=f0\n"
430 "mov f85=f0\n"
431 "mov f86=f0\n"
432 "mov f87=f0\n"
433 "mov f88=f0\n"
434 "mov f89=f0\n"
435
436 "mov f90=f0\n"
437 "mov f91=f0\n"
438 "mov f92=f0\n"
439 "mov f93=f0\n"
440 "mov f94=f0\n"
441 "mov f95=f0\n"
442 "mov f96=f0\n"
443 "mov f97=f0\n"
444 "mov f98=f0\n"
445 "mov f99=f0\n"
446
447 "mov f100=f0\n"
448 "mov f101=f0\n"
449 "mov f102=f0\n"
450 "mov f103=f0\n"
451 "mov f104=f0\n"
452 "mov f105=f0\n"
453 "mov f106=f0\n"
454 "mov f107=f0\n"
455 "mov f108=f0\n"
456 "mov f109=f0\n"
457
458 "mov f110=f0\n"
459 "mov f111=f0\n"
460 "mov f112=f0\n"
461 "mov f113=f0\n"
462 "mov f114=f0\n"
463 "mov f115=f0\n"
464 "mov f116=f0\n"
465 "mov f117=f0\n"
466 "mov f118=f0\n"
467 "mov f119=f0\n"
468
469 "mov f120=f0\n"
470 "mov f121=f0\n"
471 "mov f122=f0\n"
472 "mov f123=f0\n"
473 "mov f124=f0\n"
474 "mov f125=f0\n"
475 "mov f126=f0\n"
476 "mov f127=f0\n"
477
478 );
479
480}
[5581c45e]481
[b45c443]482
483 /** @}
484 */
485
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