powerpc: Add vr save/restore functions
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / arch / powerpc / lib / crtsavres.S
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1/*
2 * Special support for eabi and SVR4
3 *
4 * Copyright (C) 1995, 1996, 1998, 2000, 2001 Free Software Foundation, Inc.
5 * Copyright 2008 Freescale Semiconductor, Inc.
6 * Written By Michael Meissner
7 *
8 * Based on gcc/config/rs6000/crtsavres.asm from gcc
7fca5dc8 9 * 64 bit additions from reading the PPC elf64abi document.
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10 *
11 * This file is free software; you can redistribute it and/or modify it
12 * under the terms of the GNU General Public License as published by the
13 * Free Software Foundation; either version 2, or (at your option) any
14 * later version.
15 *
16 * In addition to the permissions in the GNU General Public License, the
17 * Free Software Foundation gives you unlimited permission to link the
18 * compiled version of this file with other programs, and to distribute
19 * those programs without any restriction coming from the use of this
20 * file. (The General Public License restrictions do apply in other
21 * respects; for example, they cover modification of the file, and
22 * distribution when not linked into another program.)
23 *
24 * This file is distributed in the hope that it will be useful, but
25 * WITHOUT ANY WARRANTY; without even the implied warranty of
26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
27 * General Public License for more details.
28 *
29 * You should have received a copy of the GNU General Public License
30 * along with this program; see the file COPYING. If not, write to
31 * the Free Software Foundation, 51 Franklin Street, Fifth Floor,
32 * Boston, MA 02110-1301, USA.
33 *
34 * As a special exception, if you link this library with files
35 * compiled with GCC to produce an executable, this does not cause
36 * the resulting executable to be covered by the GNU General Public License.
37 * This exception does not however invalidate any other reasons why
38 * the executable file might be covered by the GNU General Public License.
39 */
40
41#include <asm/ppc_asm.h>
42
43 .file "crtsavres.S"
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44
45#ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
46
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47#ifndef CONFIG_PPC64
48
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49 .section ".text"
50
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51/* Routines for saving integer registers, called by the compiler. */
52/* Called with r11 pointing to the stack header word of the caller of the */
53/* function, just beyond the end of the integer save area. */
54
55_GLOBAL(_savegpr_14)
56_GLOBAL(_save32gpr_14)
57 stw 14,-72(11) /* save gp registers */
58_GLOBAL(_savegpr_15)
59_GLOBAL(_save32gpr_15)
60 stw 15,-68(11)
61_GLOBAL(_savegpr_16)
62_GLOBAL(_save32gpr_16)
63 stw 16,-64(11)
64_GLOBAL(_savegpr_17)
65_GLOBAL(_save32gpr_17)
66 stw 17,-60(11)
67_GLOBAL(_savegpr_18)
68_GLOBAL(_save32gpr_18)
69 stw 18,-56(11)
70_GLOBAL(_savegpr_19)
71_GLOBAL(_save32gpr_19)
72 stw 19,-52(11)
73_GLOBAL(_savegpr_20)
74_GLOBAL(_save32gpr_20)
75 stw 20,-48(11)
76_GLOBAL(_savegpr_21)
77_GLOBAL(_save32gpr_21)
78 stw 21,-44(11)
79_GLOBAL(_savegpr_22)
80_GLOBAL(_save32gpr_22)
81 stw 22,-40(11)
82_GLOBAL(_savegpr_23)
83_GLOBAL(_save32gpr_23)
84 stw 23,-36(11)
85_GLOBAL(_savegpr_24)
86_GLOBAL(_save32gpr_24)
87 stw 24,-32(11)
88_GLOBAL(_savegpr_25)
89_GLOBAL(_save32gpr_25)
90 stw 25,-28(11)
91_GLOBAL(_savegpr_26)
92_GLOBAL(_save32gpr_26)
93 stw 26,-24(11)
94_GLOBAL(_savegpr_27)
95_GLOBAL(_save32gpr_27)
96 stw 27,-20(11)
97_GLOBAL(_savegpr_28)
98_GLOBAL(_save32gpr_28)
99 stw 28,-16(11)
100_GLOBAL(_savegpr_29)
101_GLOBAL(_save32gpr_29)
102 stw 29,-12(11)
103_GLOBAL(_savegpr_30)
104_GLOBAL(_save32gpr_30)
105 stw 30,-8(11)
106_GLOBAL(_savegpr_31)
107_GLOBAL(_save32gpr_31)
108 stw 31,-4(11)
109 blr
110
111/* Routines for restoring integer registers, called by the compiler. */
112/* Called with r11 pointing to the stack header word of the caller of the */
113/* function, just beyond the end of the integer restore area. */
114
115_GLOBAL(_restgpr_14)
116_GLOBAL(_rest32gpr_14)
117 lwz 14,-72(11) /* restore gp registers */
118_GLOBAL(_restgpr_15)
119_GLOBAL(_rest32gpr_15)
120 lwz 15,-68(11)
121_GLOBAL(_restgpr_16)
122_GLOBAL(_rest32gpr_16)
123 lwz 16,-64(11)
124_GLOBAL(_restgpr_17)
125_GLOBAL(_rest32gpr_17)
126 lwz 17,-60(11)
127_GLOBAL(_restgpr_18)
128_GLOBAL(_rest32gpr_18)
129 lwz 18,-56(11)
130_GLOBAL(_restgpr_19)
131_GLOBAL(_rest32gpr_19)
132 lwz 19,-52(11)
133_GLOBAL(_restgpr_20)
134_GLOBAL(_rest32gpr_20)
135 lwz 20,-48(11)
136_GLOBAL(_restgpr_21)
137_GLOBAL(_rest32gpr_21)
138 lwz 21,-44(11)
139_GLOBAL(_restgpr_22)
140_GLOBAL(_rest32gpr_22)
141 lwz 22,-40(11)
142_GLOBAL(_restgpr_23)
143_GLOBAL(_rest32gpr_23)
144 lwz 23,-36(11)
145_GLOBAL(_restgpr_24)
146_GLOBAL(_rest32gpr_24)
147 lwz 24,-32(11)
148_GLOBAL(_restgpr_25)
149_GLOBAL(_rest32gpr_25)
150 lwz 25,-28(11)
151_GLOBAL(_restgpr_26)
152_GLOBAL(_rest32gpr_26)
153 lwz 26,-24(11)
154_GLOBAL(_restgpr_27)
155_GLOBAL(_rest32gpr_27)
156 lwz 27,-20(11)
157_GLOBAL(_restgpr_28)
158_GLOBAL(_rest32gpr_28)
159 lwz 28,-16(11)
160_GLOBAL(_restgpr_29)
161_GLOBAL(_rest32gpr_29)
162 lwz 29,-12(11)
163_GLOBAL(_restgpr_30)
164_GLOBAL(_rest32gpr_30)
165 lwz 30,-8(11)
166_GLOBAL(_restgpr_31)
167_GLOBAL(_rest32gpr_31)
168 lwz 31,-4(11)
169 blr
170
171/* Routines for restoring integer registers, called by the compiler. */
172/* Called with r11 pointing to the stack header word of the caller of the */
173/* function, just beyond the end of the integer restore area. */
174
175_GLOBAL(_restgpr_14_x)
176_GLOBAL(_rest32gpr_14_x)
177 lwz 14,-72(11) /* restore gp registers */
178_GLOBAL(_restgpr_15_x)
179_GLOBAL(_rest32gpr_15_x)
180 lwz 15,-68(11)
181_GLOBAL(_restgpr_16_x)
182_GLOBAL(_rest32gpr_16_x)
183 lwz 16,-64(11)
184_GLOBAL(_restgpr_17_x)
185_GLOBAL(_rest32gpr_17_x)
186 lwz 17,-60(11)
187_GLOBAL(_restgpr_18_x)
188_GLOBAL(_rest32gpr_18_x)
189 lwz 18,-56(11)
190_GLOBAL(_restgpr_19_x)
191_GLOBAL(_rest32gpr_19_x)
192 lwz 19,-52(11)
193_GLOBAL(_restgpr_20_x)
194_GLOBAL(_rest32gpr_20_x)
195 lwz 20,-48(11)
196_GLOBAL(_restgpr_21_x)
197_GLOBAL(_rest32gpr_21_x)
198 lwz 21,-44(11)
199_GLOBAL(_restgpr_22_x)
200_GLOBAL(_rest32gpr_22_x)
201 lwz 22,-40(11)
202_GLOBAL(_restgpr_23_x)
203_GLOBAL(_rest32gpr_23_x)
204 lwz 23,-36(11)
205_GLOBAL(_restgpr_24_x)
206_GLOBAL(_rest32gpr_24_x)
207 lwz 24,-32(11)
208_GLOBAL(_restgpr_25_x)
209_GLOBAL(_rest32gpr_25_x)
210 lwz 25,-28(11)
211_GLOBAL(_restgpr_26_x)
212_GLOBAL(_rest32gpr_26_x)
213 lwz 26,-24(11)
214_GLOBAL(_restgpr_27_x)
215_GLOBAL(_rest32gpr_27_x)
216 lwz 27,-20(11)
217_GLOBAL(_restgpr_28_x)
218_GLOBAL(_rest32gpr_28_x)
219 lwz 28,-16(11)
220_GLOBAL(_restgpr_29_x)
221_GLOBAL(_rest32gpr_29_x)
222 lwz 29,-12(11)
223_GLOBAL(_restgpr_30_x)
224_GLOBAL(_rest32gpr_30_x)
225 lwz 30,-8(11)
226_GLOBAL(_restgpr_31_x)
227_GLOBAL(_rest32gpr_31_x)
228 lwz 0,4(11)
229 lwz 31,-4(11)
230 mtlr 0
231 mr 1,11
232 blr
7fca5dc8 233
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234#ifdef CONFIG_ALTIVEC
235/* Called with r0 pointing just beyond the end of the vector save area. */
236
237_GLOBAL(_savevr_20)
238 li r11,-192
239 stvx vr20,r11,r0
240_GLOBAL(_savevr_21)
241 li r11,-176
242 stvx vr21,r11,r0
243_GLOBAL(_savevr_22)
244 li r11,-160
245 stvx vr22,r11,r0
246_GLOBAL(_savevr_23)
247 li r11,-144
248 stvx vr23,r11,r0
249_GLOBAL(_savevr_24)
250 li r11,-128
251 stvx vr24,r11,r0
252_GLOBAL(_savevr_25)
253 li r11,-112
254 stvx vr25,r11,r0
255_GLOBAL(_savevr_26)
256 li r11,-96
257 stvx vr26,r11,r0
258_GLOBAL(_savevr_27)
259 li r11,-80
260 stvx vr27,r11,r0
261_GLOBAL(_savevr_28)
262 li r11,-64
263 stvx vr28,r11,r0
264_GLOBAL(_savevr_29)
265 li r11,-48
266 stvx vr29,r11,r0
267_GLOBAL(_savevr_30)
268 li r11,-32
269 stvx vr30,r11,r0
270_GLOBAL(_savevr_31)
271 li r11,-16
272 stvx vr31,r11,r0
273 blr
274
275_GLOBAL(_restvr_20)
276 li r11,-192
277 lvx vr20,r11,r0
278_GLOBAL(_restvr_21)
279 li r11,-176
280 lvx vr21,r11,r0
281_GLOBAL(_restvr_22)
282 li r11,-160
283 lvx vr22,r11,r0
284_GLOBAL(_restvr_23)
285 li r11,-144
286 lvx vr23,r11,r0
287_GLOBAL(_restvr_24)
288 li r11,-128
289 lvx vr24,r11,r0
290_GLOBAL(_restvr_25)
291 li r11,-112
292 lvx vr25,r11,r0
293_GLOBAL(_restvr_26)
294 li r11,-96
295 lvx vr26,r11,r0
296_GLOBAL(_restvr_27)
297 li r11,-80
298 lvx vr27,r11,r0
299_GLOBAL(_restvr_28)
300 li r11,-64
301 lvx vr28,r11,r0
302_GLOBAL(_restvr_29)
303 li r11,-48
304 lvx vr29,r11,r0
305_GLOBAL(_restvr_30)
306 li r11,-32
307 lvx vr30,r11,r0
308_GLOBAL(_restvr_31)
309 li r11,-16
310 lvx vr31,r11,r0
311 blr
312
313#endif /* CONFIG_ALTIVEC */
314
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315#else /* CONFIG_PPC64 */
316
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317 .section ".text.save.restore","ax",@progbits
318
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319.globl _savegpr0_14
320_savegpr0_14:
321 std r14,-144(r1)
322.globl _savegpr0_15
323_savegpr0_15:
324 std r15,-136(r1)
325.globl _savegpr0_16
326_savegpr0_16:
327 std r16,-128(r1)
328.globl _savegpr0_17
329_savegpr0_17:
330 std r17,-120(r1)
331.globl _savegpr0_18
332_savegpr0_18:
333 std r18,-112(r1)
334.globl _savegpr0_19
335_savegpr0_19:
336 std r19,-104(r1)
337.globl _savegpr0_20
338_savegpr0_20:
339 std r20,-96(r1)
340.globl _savegpr0_21
341_savegpr0_21:
342 std r21,-88(r1)
343.globl _savegpr0_22
344_savegpr0_22:
345 std r22,-80(r1)
346.globl _savegpr0_23
347_savegpr0_23:
348 std r23,-72(r1)
349.globl _savegpr0_24
350_savegpr0_24:
351 std r24,-64(r1)
352.globl _savegpr0_25
353_savegpr0_25:
354 std r25,-56(r1)
355.globl _savegpr0_26
356_savegpr0_26:
357 std r26,-48(r1)
358.globl _savegpr0_27
359_savegpr0_27:
360 std r27,-40(r1)
361.globl _savegpr0_28
362_savegpr0_28:
363 std r28,-32(r1)
364.globl _savegpr0_29
365_savegpr0_29:
366 std r29,-24(r1)
367.globl _savegpr0_30
368_savegpr0_30:
369 std r30,-16(r1)
370.globl _savegpr0_31
371_savegpr0_31:
372 std r31,-8(r1)
373 std r0,16(r1)
374 blr
375
376.globl _restgpr0_14
377_restgpr0_14:
378 ld r14,-144(r1)
379.globl _restgpr0_15
380_restgpr0_15:
381 ld r15,-136(r1)
382.globl _restgpr0_16
383_restgpr0_16:
384 ld r16,-128(r1)
385.globl _restgpr0_17
386_restgpr0_17:
387 ld r17,-120(r1)
388.globl _restgpr0_18
389_restgpr0_18:
390 ld r18,-112(r1)
391.globl _restgpr0_19
392_restgpr0_19:
393 ld r19,-104(r1)
394.globl _restgpr0_20
395_restgpr0_20:
396 ld r20,-96(r1)
397.globl _restgpr0_21
398_restgpr0_21:
399 ld r21,-88(r1)
400.globl _restgpr0_22
401_restgpr0_22:
402 ld r22,-80(r1)
403.globl _restgpr0_23
404_restgpr0_23:
405 ld r23,-72(r1)
406.globl _restgpr0_24
407_restgpr0_24:
408 ld r24,-64(r1)
409.globl _restgpr0_25
410_restgpr0_25:
411 ld r25,-56(r1)
412.globl _restgpr0_26
413_restgpr0_26:
414 ld r26,-48(r1)
415.globl _restgpr0_27
416_restgpr0_27:
417 ld r27,-40(r1)
418.globl _restgpr0_28
419_restgpr0_28:
420 ld r28,-32(r1)
421.globl _restgpr0_29
422_restgpr0_29:
423 ld r0,16(r1)
424 ld r29,-24(r1)
425 mtlr r0
426 ld r30,-16(r1)
427 ld r31,-8(r1)
428 blr
429
430.globl _restgpr0_30
431_restgpr0_30:
432 ld r30,-16(r1)
433.globl _restgpr0_31
434_restgpr0_31:
435 ld r0,16(r1)
436 ld r31,-8(r1)
437 mtlr r0
438 blr
439
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440#ifdef CONFIG_ALTIVEC
441/* Called with r0 pointing just beyond the end of the vector save area. */
442
443.globl _savevr_20
444_savevr_20:
445 li r12,-192
446 stvx vr20,r12,r0
447.globl _savevr_21
448_savevr_21:
449 li r12,-176
450 stvx vr21,r12,r0
451.globl _savevr_22
452_savevr_22:
453 li r12,-160
454 stvx vr22,r12,r0
455.globl _savevr_23
456_savevr_23:
457 li r12,-144
458 stvx vr23,r12,r0
459.globl _savevr_24
460_savevr_24:
461 li r12,-128
462 stvx vr24,r12,r0
463.globl _savevr_25
464_savevr_25:
465 li r12,-112
466 stvx vr25,r12,r0
467.globl _savevr_26
468_savevr_26:
469 li r12,-96
470 stvx vr26,r12,r0
471.globl _savevr_27
472_savevr_27:
473 li r12,-80
474 stvx vr27,r12,r0
475.globl _savevr_28
476_savevr_28:
477 li r12,-64
478 stvx vr28,r12,r0
479.globl _savevr_29
480_savevr_29:
481 li r12,-48
482 stvx vr29,r12,r0
483.globl _savevr_30
484_savevr_30:
485 li r12,-32
486 stvx vr30,r12,r0
487.globl _savevr_31
488_savevr_31:
489 li r12,-16
490 stvx vr31,r12,r0
491 blr
492
493.globl _restvr_20
494_restvr_20:
495 li r12,-192
496 lvx vr20,r12,r0
497.globl _restvr_21
498_restvr_21:
499 li r12,-176
500 lvx vr21,r12,r0
501.globl _restvr_22
502_restvr_22:
503 li r12,-160
504 lvx vr22,r12,r0
505.globl _restvr_23
506_restvr_23:
507 li r12,-144
508 lvx vr23,r12,r0
509.globl _restvr_24
510_restvr_24:
511 li r12,-128
512 lvx vr24,r12,r0
513.globl _restvr_25
514_restvr_25:
515 li r12,-112
516 lvx vr25,r12,r0
517.globl _restvr_26
518_restvr_26:
519 li r12,-96
520 lvx vr26,r12,r0
521.globl _restvr_27
522_restvr_27:
523 li r12,-80
524 lvx vr27,r12,r0
525.globl _restvr_28
526_restvr_28:
527 li r12,-64
528 lvx vr28,r12,r0
529.globl _restvr_29
530_restvr_29:
531 li r12,-48
532 lvx vr29,r12,r0
533.globl _restvr_30
534_restvr_30:
535 li r12,-32
536 lvx vr30,r12,r0
537.globl _restvr_31
538_restvr_31:
539 li r12,-16
540 lvx vr31,r12,r0
541 blr
542
543#endif /* CONFIG_ALTIVEC */
544
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545#endif /* CONFIG_PPC64 */
546
da3de6df 547#endif