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b3f271e8 AB |
1 | /* |
2 | * This program is free software; you can redistribute it and/or modify | |
3 | * it under the terms of the GNU General Public License as published by | |
4 | * the Free Software Foundation; either version 2 of the License, or | |
5 | * (at your option) any later version. | |
6 | * | |
7 | * This program is distributed in the hope that it will be useful, | |
8 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
9 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
10 | * GNU General Public License for more details. | |
11 | * | |
12 | * You should have received a copy of the GNU General Public License | |
13 | * along with this program; if not, write to the Free Software | |
14 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
15 | * | |
16 | * Copyright (C) IBM Corporation, 2012 | |
17 | * | |
18 | * Author: Anton Blanchard <anton@au.ibm.com> | |
19 | */ | |
20 | #include <asm/ppc_asm.h> | |
21 | ||
b3f271e8 | 22 | _GLOBAL(memcpy_power7) |
32ee1e18 AB |
23 | |
24 | #ifdef __BIG_ENDIAN__ | |
25 | #define LVS(VRT,RA,RB) lvsl VRT,RA,RB | |
26 | #define VPERM(VRT,VRA,VRB,VRC) vperm VRT,VRA,VRB,VRC | |
27 | #else | |
28 | #define LVS(VRT,RA,RB) lvsr VRT,RA,RB | |
29 | #define VPERM(VRT,VRA,VRB,VRC) vperm VRT,VRB,VRA,VRC | |
30 | #endif | |
31 | ||
b3f271e8 AB |
32 | #ifdef CONFIG_ALTIVEC |
33 | cmpldi r5,16 | |
34 | cmpldi cr1,r5,4096 | |
35 | ||
752a6422 | 36 | std r3,-STACKFRAMESIZE+STK_REG(R31)(r1) |
b3f271e8 AB |
37 | |
38 | blt .Lshort_copy | |
39 | bgt cr1,.Lvmx_copy | |
40 | #else | |
41 | cmpldi r5,16 | |
42 | ||
752a6422 | 43 | std r3,-STACKFRAMESIZE+STK_REG(R31)(r1) |
b3f271e8 AB |
44 | |
45 | blt .Lshort_copy | |
46 | #endif | |
47 | ||
48 | .Lnonvmx_copy: | |
49 | /* Get the source 8B aligned */ | |
50 | neg r6,r4 | |
51 | mtocrf 0x01,r6 | |
52 | clrldi r6,r6,(64-3) | |
53 | ||
54 | bf cr7*4+3,1f | |
55 | lbz r0,0(r4) | |
56 | addi r4,r4,1 | |
57 | stb r0,0(r3) | |
58 | addi r3,r3,1 | |
59 | ||
60 | 1: bf cr7*4+2,2f | |
61 | lhz r0,0(r4) | |
62 | addi r4,r4,2 | |
63 | sth r0,0(r3) | |
64 | addi r3,r3,2 | |
65 | ||
66 | 2: bf cr7*4+1,3f | |
67 | lwz r0,0(r4) | |
68 | addi r4,r4,4 | |
69 | stw r0,0(r3) | |
70 | addi r3,r3,4 | |
71 | ||
72 | 3: sub r5,r5,r6 | |
73 | cmpldi r5,128 | |
74 | blt 5f | |
75 | ||
76 | mflr r0 | |
77 | stdu r1,-STACKFRAMESIZE(r1) | |
c75df6f9 MN |
78 | std r14,STK_REG(R14)(r1) |
79 | std r15,STK_REG(R15)(r1) | |
80 | std r16,STK_REG(R16)(r1) | |
81 | std r17,STK_REG(R17)(r1) | |
82 | std r18,STK_REG(R18)(r1) | |
83 | std r19,STK_REG(R19)(r1) | |
84 | std r20,STK_REG(R20)(r1) | |
85 | std r21,STK_REG(R21)(r1) | |
86 | std r22,STK_REG(R22)(r1) | |
b3f271e8 AB |
87 | std r0,STACKFRAMESIZE+16(r1) |
88 | ||
89 | srdi r6,r5,7 | |
90 | mtctr r6 | |
91 | ||
92 | /* Now do cacheline (128B) sized loads and stores. */ | |
93 | .align 5 | |
94 | 4: | |
95 | ld r0,0(r4) | |
96 | ld r6,8(r4) | |
97 | ld r7,16(r4) | |
98 | ld r8,24(r4) | |
99 | ld r9,32(r4) | |
100 | ld r10,40(r4) | |
101 | ld r11,48(r4) | |
102 | ld r12,56(r4) | |
103 | ld r14,64(r4) | |
104 | ld r15,72(r4) | |
105 | ld r16,80(r4) | |
106 | ld r17,88(r4) | |
107 | ld r18,96(r4) | |
108 | ld r19,104(r4) | |
109 | ld r20,112(r4) | |
110 | ld r21,120(r4) | |
111 | addi r4,r4,128 | |
112 | std r0,0(r3) | |
113 | std r6,8(r3) | |
114 | std r7,16(r3) | |
115 | std r8,24(r3) | |
116 | std r9,32(r3) | |
117 | std r10,40(r3) | |
118 | std r11,48(r3) | |
119 | std r12,56(r3) | |
120 | std r14,64(r3) | |
121 | std r15,72(r3) | |
122 | std r16,80(r3) | |
123 | std r17,88(r3) | |
124 | std r18,96(r3) | |
125 | std r19,104(r3) | |
126 | std r20,112(r3) | |
127 | std r21,120(r3) | |
128 | addi r3,r3,128 | |
129 | bdnz 4b | |
130 | ||
131 | clrldi r5,r5,(64-7) | |
132 | ||
c75df6f9 MN |
133 | ld r14,STK_REG(R14)(r1) |
134 | ld r15,STK_REG(R15)(r1) | |
135 | ld r16,STK_REG(R16)(r1) | |
136 | ld r17,STK_REG(R17)(r1) | |
137 | ld r18,STK_REG(R18)(r1) | |
138 | ld r19,STK_REG(R19)(r1) | |
139 | ld r20,STK_REG(R20)(r1) | |
140 | ld r21,STK_REG(R21)(r1) | |
141 | ld r22,STK_REG(R22)(r1) | |
b3f271e8 AB |
142 | addi r1,r1,STACKFRAMESIZE |
143 | ||
144 | /* Up to 127B to go */ | |
145 | 5: srdi r6,r5,4 | |
146 | mtocrf 0x01,r6 | |
147 | ||
148 | 6: bf cr7*4+1,7f | |
149 | ld r0,0(r4) | |
150 | ld r6,8(r4) | |
151 | ld r7,16(r4) | |
152 | ld r8,24(r4) | |
153 | ld r9,32(r4) | |
154 | ld r10,40(r4) | |
155 | ld r11,48(r4) | |
156 | ld r12,56(r4) | |
157 | addi r4,r4,64 | |
158 | std r0,0(r3) | |
159 | std r6,8(r3) | |
160 | std r7,16(r3) | |
161 | std r8,24(r3) | |
162 | std r9,32(r3) | |
163 | std r10,40(r3) | |
164 | std r11,48(r3) | |
165 | std r12,56(r3) | |
166 | addi r3,r3,64 | |
167 | ||
168 | /* Up to 63B to go */ | |
169 | 7: bf cr7*4+2,8f | |
170 | ld r0,0(r4) | |
171 | ld r6,8(r4) | |
172 | ld r7,16(r4) | |
173 | ld r8,24(r4) | |
174 | addi r4,r4,32 | |
175 | std r0,0(r3) | |
176 | std r6,8(r3) | |
177 | std r7,16(r3) | |
178 | std r8,24(r3) | |
179 | addi r3,r3,32 | |
180 | ||
181 | /* Up to 31B to go */ | |
182 | 8: bf cr7*4+3,9f | |
183 | ld r0,0(r4) | |
184 | ld r6,8(r4) | |
185 | addi r4,r4,16 | |
186 | std r0,0(r3) | |
187 | std r6,8(r3) | |
188 | addi r3,r3,16 | |
189 | ||
190 | 9: clrldi r5,r5,(64-4) | |
191 | ||
192 | /* Up to 15B to go */ | |
193 | .Lshort_copy: | |
194 | mtocrf 0x01,r5 | |
195 | bf cr7*4+0,12f | |
196 | lwz r0,0(r4) /* Less chance of a reject with word ops */ | |
197 | lwz r6,4(r4) | |
198 | addi r4,r4,8 | |
199 | stw r0,0(r3) | |
200 | stw r6,4(r3) | |
201 | addi r3,r3,8 | |
202 | ||
203 | 12: bf cr7*4+1,13f | |
204 | lwz r0,0(r4) | |
205 | addi r4,r4,4 | |
206 | stw r0,0(r3) | |
207 | addi r3,r3,4 | |
208 | ||
209 | 13: bf cr7*4+2,14f | |
210 | lhz r0,0(r4) | |
211 | addi r4,r4,2 | |
212 | sth r0,0(r3) | |
213 | addi r3,r3,2 | |
214 | ||
215 | 14: bf cr7*4+3,15f | |
216 | lbz r0,0(r4) | |
217 | stb r0,0(r3) | |
218 | ||
752a6422 | 219 | 15: ld r3,-STACKFRAMESIZE+STK_REG(R31)(r1) |
b3f271e8 AB |
220 | blr |
221 | ||
222 | .Lunwind_stack_nonvmx_copy: | |
223 | addi r1,r1,STACKFRAMESIZE | |
224 | b .Lnonvmx_copy | |
225 | ||
226 | #ifdef CONFIG_ALTIVEC | |
227 | .Lvmx_copy: | |
228 | mflr r0 | |
752a6422 UW |
229 | std r4,-STACKFRAMESIZE+STK_REG(R30)(r1) |
230 | std r5,-STACKFRAMESIZE+STK_REG(R29)(r1) | |
b3f271e8 AB |
231 | std r0,16(r1) |
232 | stdu r1,-STACKFRAMESIZE(r1) | |
b1576fec | 233 | bl enter_vmx_copy |
2fae7cdb | 234 | cmpwi cr1,r3,0 |
b3f271e8 | 235 | ld r0,STACKFRAMESIZE+16(r1) |
752a6422 UW |
236 | ld r3,STK_REG(R31)(r1) |
237 | ld r4,STK_REG(R30)(r1) | |
238 | ld r5,STK_REG(R29)(r1) | |
b3f271e8 AB |
239 | mtlr r0 |
240 | ||
241 | /* | |
242 | * We prefetch both the source and destination using enhanced touch | |
243 | * instructions. We use a stream ID of 0 for the load side and | |
244 | * 1 for the store side. | |
245 | */ | |
246 | clrrdi r6,r4,7 | |
247 | clrrdi r9,r3,7 | |
248 | ori r9,r9,1 /* stream=1 */ | |
249 | ||
250 | srdi r7,r5,7 /* length in cachelines, capped at 0x3FF */ | |
c8adfecc NA |
251 | cmpldi r7,0x3FF |
252 | ble 1f | |
b3f271e8 AB |
253 | li r7,0x3FF |
254 | 1: lis r0,0x0E00 /* depth=7 */ | |
255 | sldi r7,r7,7 | |
256 | or r7,r7,r0 | |
257 | ori r10,r7,1 /* stream=1 */ | |
258 | ||
259 | lis r8,0x8000 /* GO=1 */ | |
260 | clrldi r8,r8,32 | |
261 | ||
262 | .machine push | |
263 | .machine "power4" | |
264 | dcbt r0,r6,0b01000 | |
265 | dcbt r0,r7,0b01010 | |
266 | dcbtst r0,r9,0b01000 | |
267 | dcbtst r0,r10,0b01010 | |
268 | eieio | |
269 | dcbt r0,r8,0b01010 /* GO */ | |
270 | .machine pop | |
271 | ||
2fae7cdb | 272 | beq cr1,.Lunwind_stack_nonvmx_copy |
b3f271e8 AB |
273 | |
274 | /* | |
275 | * If source and destination are not relatively aligned we use a | |
276 | * slower permute loop. | |
277 | */ | |
278 | xor r6,r4,r3 | |
279 | rldicl. r6,r6,0,(64-4) | |
280 | bne .Lvmx_unaligned_copy | |
281 | ||
282 | /* Get the destination 16B aligned */ | |
283 | neg r6,r3 | |
284 | mtocrf 0x01,r6 | |
285 | clrldi r6,r6,(64-4) | |
286 | ||
287 | bf cr7*4+3,1f | |
288 | lbz r0,0(r4) | |
289 | addi r4,r4,1 | |
290 | stb r0,0(r3) | |
291 | addi r3,r3,1 | |
292 | ||
293 | 1: bf cr7*4+2,2f | |
294 | lhz r0,0(r4) | |
295 | addi r4,r4,2 | |
296 | sth r0,0(r3) | |
297 | addi r3,r3,2 | |
298 | ||
299 | 2: bf cr7*4+1,3f | |
300 | lwz r0,0(r4) | |
301 | addi r4,r4,4 | |
302 | stw r0,0(r3) | |
303 | addi r3,r3,4 | |
304 | ||
305 | 3: bf cr7*4+0,4f | |
306 | ld r0,0(r4) | |
307 | addi r4,r4,8 | |
308 | std r0,0(r3) | |
309 | addi r3,r3,8 | |
310 | ||
311 | 4: sub r5,r5,r6 | |
312 | ||
313 | /* Get the desination 128B aligned */ | |
314 | neg r6,r3 | |
315 | srdi r7,r6,4 | |
316 | mtocrf 0x01,r7 | |
317 | clrldi r6,r6,(64-7) | |
318 | ||
319 | li r9,16 | |
320 | li r10,32 | |
321 | li r11,48 | |
322 | ||
323 | bf cr7*4+3,5f | |
c2ce6f9f | 324 | lvx v1,r0,r4 |
b3f271e8 | 325 | addi r4,r4,16 |
c2ce6f9f | 326 | stvx v1,r0,r3 |
b3f271e8 AB |
327 | addi r3,r3,16 |
328 | ||
329 | 5: bf cr7*4+2,6f | |
c2ce6f9f AB |
330 | lvx v1,r0,r4 |
331 | lvx v0,r4,r9 | |
b3f271e8 | 332 | addi r4,r4,32 |
c2ce6f9f AB |
333 | stvx v1,r0,r3 |
334 | stvx v0,r3,r9 | |
b3f271e8 AB |
335 | addi r3,r3,32 |
336 | ||
337 | 6: bf cr7*4+1,7f | |
c2ce6f9f AB |
338 | lvx v3,r0,r4 |
339 | lvx v2,r4,r9 | |
340 | lvx v1,r4,r10 | |
341 | lvx v0,r4,r11 | |
b3f271e8 | 342 | addi r4,r4,64 |
c2ce6f9f AB |
343 | stvx v3,r0,r3 |
344 | stvx v2,r3,r9 | |
345 | stvx v1,r3,r10 | |
346 | stvx v0,r3,r11 | |
b3f271e8 AB |
347 | addi r3,r3,64 |
348 | ||
349 | 7: sub r5,r5,r6 | |
350 | srdi r6,r5,7 | |
351 | ||
c75df6f9 MN |
352 | std r14,STK_REG(R14)(r1) |
353 | std r15,STK_REG(R15)(r1) | |
354 | std r16,STK_REG(R16)(r1) | |
b3f271e8 AB |
355 | |
356 | li r12,64 | |
357 | li r14,80 | |
358 | li r15,96 | |
359 | li r16,112 | |
360 | ||
361 | mtctr r6 | |
362 | ||
363 | /* | |
364 | * Now do cacheline sized loads and stores. By this stage the | |
365 | * cacheline stores are also cacheline aligned. | |
366 | */ | |
367 | .align 5 | |
368 | 8: | |
c2ce6f9f AB |
369 | lvx v7,r0,r4 |
370 | lvx v6,r4,r9 | |
371 | lvx v5,r4,r10 | |
372 | lvx v4,r4,r11 | |
373 | lvx v3,r4,r12 | |
374 | lvx v2,r4,r14 | |
375 | lvx v1,r4,r15 | |
376 | lvx v0,r4,r16 | |
b3f271e8 | 377 | addi r4,r4,128 |
c2ce6f9f AB |
378 | stvx v7,r0,r3 |
379 | stvx v6,r3,r9 | |
380 | stvx v5,r3,r10 | |
381 | stvx v4,r3,r11 | |
382 | stvx v3,r3,r12 | |
383 | stvx v2,r3,r14 | |
384 | stvx v1,r3,r15 | |
385 | stvx v0,r3,r16 | |
b3f271e8 AB |
386 | addi r3,r3,128 |
387 | bdnz 8b | |
388 | ||
c75df6f9 MN |
389 | ld r14,STK_REG(R14)(r1) |
390 | ld r15,STK_REG(R15)(r1) | |
391 | ld r16,STK_REG(R16)(r1) | |
b3f271e8 AB |
392 | |
393 | /* Up to 127B to go */ | |
394 | clrldi r5,r5,(64-7) | |
395 | srdi r6,r5,4 | |
396 | mtocrf 0x01,r6 | |
397 | ||
398 | bf cr7*4+1,9f | |
c2ce6f9f AB |
399 | lvx v3,r0,r4 |
400 | lvx v2,r4,r9 | |
401 | lvx v1,r4,r10 | |
402 | lvx v0,r4,r11 | |
b3f271e8 | 403 | addi r4,r4,64 |
c2ce6f9f AB |
404 | stvx v3,r0,r3 |
405 | stvx v2,r3,r9 | |
406 | stvx v1,r3,r10 | |
407 | stvx v0,r3,r11 | |
b3f271e8 AB |
408 | addi r3,r3,64 |
409 | ||
410 | 9: bf cr7*4+2,10f | |
c2ce6f9f AB |
411 | lvx v1,r0,r4 |
412 | lvx v0,r4,r9 | |
b3f271e8 | 413 | addi r4,r4,32 |
c2ce6f9f AB |
414 | stvx v1,r0,r3 |
415 | stvx v0,r3,r9 | |
b3f271e8 AB |
416 | addi r3,r3,32 |
417 | ||
418 | 10: bf cr7*4+3,11f | |
c2ce6f9f | 419 | lvx v1,r0,r4 |
b3f271e8 | 420 | addi r4,r4,16 |
c2ce6f9f | 421 | stvx v1,r0,r3 |
b3f271e8 AB |
422 | addi r3,r3,16 |
423 | ||
424 | /* Up to 15B to go */ | |
425 | 11: clrldi r5,r5,(64-4) | |
426 | mtocrf 0x01,r5 | |
427 | bf cr7*4+0,12f | |
428 | ld r0,0(r4) | |
429 | addi r4,r4,8 | |
430 | std r0,0(r3) | |
431 | addi r3,r3,8 | |
432 | ||
433 | 12: bf cr7*4+1,13f | |
434 | lwz r0,0(r4) | |
435 | addi r4,r4,4 | |
436 | stw r0,0(r3) | |
437 | addi r3,r3,4 | |
438 | ||
439 | 13: bf cr7*4+2,14f | |
440 | lhz r0,0(r4) | |
441 | addi r4,r4,2 | |
442 | sth r0,0(r3) | |
443 | addi r3,r3,2 | |
444 | ||
445 | 14: bf cr7*4+3,15f | |
446 | lbz r0,0(r4) | |
447 | stb r0,0(r3) | |
448 | ||
449 | 15: addi r1,r1,STACKFRAMESIZE | |
752a6422 | 450 | ld r3,-STACKFRAMESIZE+STK_REG(R31)(r1) |
b1576fec | 451 | b exit_vmx_copy /* tail call optimise */ |
b3f271e8 AB |
452 | |
453 | .Lvmx_unaligned_copy: | |
454 | /* Get the destination 16B aligned */ | |
455 | neg r6,r3 | |
456 | mtocrf 0x01,r6 | |
457 | clrldi r6,r6,(64-4) | |
458 | ||
459 | bf cr7*4+3,1f | |
460 | lbz r0,0(r4) | |
461 | addi r4,r4,1 | |
462 | stb r0,0(r3) | |
463 | addi r3,r3,1 | |
464 | ||
465 | 1: bf cr7*4+2,2f | |
466 | lhz r0,0(r4) | |
467 | addi r4,r4,2 | |
468 | sth r0,0(r3) | |
469 | addi r3,r3,2 | |
470 | ||
471 | 2: bf cr7*4+1,3f | |
472 | lwz r0,0(r4) | |
473 | addi r4,r4,4 | |
474 | stw r0,0(r3) | |
475 | addi r3,r3,4 | |
476 | ||
477 | 3: bf cr7*4+0,4f | |
478 | lwz r0,0(r4) /* Less chance of a reject with word ops */ | |
479 | lwz r7,4(r4) | |
480 | addi r4,r4,8 | |
481 | stw r0,0(r3) | |
482 | stw r7,4(r3) | |
483 | addi r3,r3,8 | |
484 | ||
485 | 4: sub r5,r5,r6 | |
486 | ||
487 | /* Get the desination 128B aligned */ | |
488 | neg r6,r3 | |
489 | srdi r7,r6,4 | |
490 | mtocrf 0x01,r7 | |
491 | clrldi r6,r6,(64-7) | |
492 | ||
493 | li r9,16 | |
494 | li r10,32 | |
495 | li r11,48 | |
496 | ||
c2ce6f9f AB |
497 | LVS(v16,0,r4) /* Setup permute control vector */ |
498 | lvx v0,0,r4 | |
b3f271e8 AB |
499 | addi r4,r4,16 |
500 | ||
501 | bf cr7*4+3,5f | |
c2ce6f9f AB |
502 | lvx v1,r0,r4 |
503 | VPERM(v8,v0,v1,v16) | |
b3f271e8 | 504 | addi r4,r4,16 |
c2ce6f9f | 505 | stvx v8,r0,r3 |
b3f271e8 | 506 | addi r3,r3,16 |
c2ce6f9f | 507 | vor v0,v1,v1 |
b3f271e8 AB |
508 | |
509 | 5: bf cr7*4+2,6f | |
c2ce6f9f AB |
510 | lvx v1,r0,r4 |
511 | VPERM(v8,v0,v1,v16) | |
512 | lvx v0,r4,r9 | |
513 | VPERM(v9,v1,v0,v16) | |
b3f271e8 | 514 | addi r4,r4,32 |
c2ce6f9f AB |
515 | stvx v8,r0,r3 |
516 | stvx v9,r3,r9 | |
b3f271e8 AB |
517 | addi r3,r3,32 |
518 | ||
519 | 6: bf cr7*4+1,7f | |
c2ce6f9f AB |
520 | lvx v3,r0,r4 |
521 | VPERM(v8,v0,v3,v16) | |
522 | lvx v2,r4,r9 | |
523 | VPERM(v9,v3,v2,v16) | |
524 | lvx v1,r4,r10 | |
525 | VPERM(v10,v2,v1,v16) | |
526 | lvx v0,r4,r11 | |
527 | VPERM(v11,v1,v0,v16) | |
b3f271e8 | 528 | addi r4,r4,64 |
c2ce6f9f AB |
529 | stvx v8,r0,r3 |
530 | stvx v9,r3,r9 | |
531 | stvx v10,r3,r10 | |
532 | stvx v11,r3,r11 | |
b3f271e8 AB |
533 | addi r3,r3,64 |
534 | ||
535 | 7: sub r5,r5,r6 | |
536 | srdi r6,r5,7 | |
537 | ||
c75df6f9 MN |
538 | std r14,STK_REG(R14)(r1) |
539 | std r15,STK_REG(R15)(r1) | |
540 | std r16,STK_REG(R16)(r1) | |
b3f271e8 AB |
541 | |
542 | li r12,64 | |
543 | li r14,80 | |
544 | li r15,96 | |
545 | li r16,112 | |
546 | ||
547 | mtctr r6 | |
548 | ||
549 | /* | |
550 | * Now do cacheline sized loads and stores. By this stage the | |
551 | * cacheline stores are also cacheline aligned. | |
552 | */ | |
553 | .align 5 | |
554 | 8: | |
c2ce6f9f AB |
555 | lvx v7,r0,r4 |
556 | VPERM(v8,v0,v7,v16) | |
557 | lvx v6,r4,r9 | |
558 | VPERM(v9,v7,v6,v16) | |
559 | lvx v5,r4,r10 | |
560 | VPERM(v10,v6,v5,v16) | |
561 | lvx v4,r4,r11 | |
562 | VPERM(v11,v5,v4,v16) | |
563 | lvx v3,r4,r12 | |
564 | VPERM(v12,v4,v3,v16) | |
565 | lvx v2,r4,r14 | |
566 | VPERM(v13,v3,v2,v16) | |
567 | lvx v1,r4,r15 | |
568 | VPERM(v14,v2,v1,v16) | |
569 | lvx v0,r4,r16 | |
570 | VPERM(v15,v1,v0,v16) | |
b3f271e8 | 571 | addi r4,r4,128 |
c2ce6f9f AB |
572 | stvx v8,r0,r3 |
573 | stvx v9,r3,r9 | |
574 | stvx v10,r3,r10 | |
575 | stvx v11,r3,r11 | |
576 | stvx v12,r3,r12 | |
577 | stvx v13,r3,r14 | |
578 | stvx v14,r3,r15 | |
579 | stvx v15,r3,r16 | |
b3f271e8 AB |
580 | addi r3,r3,128 |
581 | bdnz 8b | |
582 | ||
c75df6f9 MN |
583 | ld r14,STK_REG(R14)(r1) |
584 | ld r15,STK_REG(R15)(r1) | |
585 | ld r16,STK_REG(R16)(r1) | |
b3f271e8 AB |
586 | |
587 | /* Up to 127B to go */ | |
588 | clrldi r5,r5,(64-7) | |
589 | srdi r6,r5,4 | |
590 | mtocrf 0x01,r6 | |
591 | ||
592 | bf cr7*4+1,9f | |
c2ce6f9f AB |
593 | lvx v3,r0,r4 |
594 | VPERM(v8,v0,v3,v16) | |
595 | lvx v2,r4,r9 | |
596 | VPERM(v9,v3,v2,v16) | |
597 | lvx v1,r4,r10 | |
598 | VPERM(v10,v2,v1,v16) | |
599 | lvx v0,r4,r11 | |
600 | VPERM(v11,v1,v0,v16) | |
b3f271e8 | 601 | addi r4,r4,64 |
c2ce6f9f AB |
602 | stvx v8,r0,r3 |
603 | stvx v9,r3,r9 | |
604 | stvx v10,r3,r10 | |
605 | stvx v11,r3,r11 | |
b3f271e8 AB |
606 | addi r3,r3,64 |
607 | ||
608 | 9: bf cr7*4+2,10f | |
c2ce6f9f AB |
609 | lvx v1,r0,r4 |
610 | VPERM(v8,v0,v1,v16) | |
611 | lvx v0,r4,r9 | |
612 | VPERM(v9,v1,v0,v16) | |
b3f271e8 | 613 | addi r4,r4,32 |
c2ce6f9f AB |
614 | stvx v8,r0,r3 |
615 | stvx v9,r3,r9 | |
b3f271e8 AB |
616 | addi r3,r3,32 |
617 | ||
618 | 10: bf cr7*4+3,11f | |
c2ce6f9f AB |
619 | lvx v1,r0,r4 |
620 | VPERM(v8,v0,v1,v16) | |
b3f271e8 | 621 | addi r4,r4,16 |
c2ce6f9f | 622 | stvx v8,r0,r3 |
b3f271e8 AB |
623 | addi r3,r3,16 |
624 | ||
625 | /* Up to 15B to go */ | |
626 | 11: clrldi r5,r5,(64-4) | |
627 | addi r4,r4,-16 /* Unwind the +16 load offset */ | |
628 | mtocrf 0x01,r5 | |
629 | bf cr7*4+0,12f | |
630 | lwz r0,0(r4) /* Less chance of a reject with word ops */ | |
631 | lwz r6,4(r4) | |
632 | addi r4,r4,8 | |
633 | stw r0,0(r3) | |
634 | stw r6,4(r3) | |
635 | addi r3,r3,8 | |
636 | ||
637 | 12: bf cr7*4+1,13f | |
638 | lwz r0,0(r4) | |
639 | addi r4,r4,4 | |
640 | stw r0,0(r3) | |
641 | addi r3,r3,4 | |
642 | ||
643 | 13: bf cr7*4+2,14f | |
644 | lhz r0,0(r4) | |
645 | addi r4,r4,2 | |
646 | sth r0,0(r3) | |
647 | addi r3,r3,2 | |
648 | ||
649 | 14: bf cr7*4+3,15f | |
650 | lbz r0,0(r4) | |
651 | stb r0,0(r3) | |
652 | ||
653 | 15: addi r1,r1,STACKFRAMESIZE | |
752a6422 | 654 | ld r3,-STACKFRAMESIZE+STK_REG(R31)(r1) |
b1576fec | 655 | b exit_vmx_copy /* tail call optimise */ |
c2522dcd | 656 | #endif /* CONFIG_ALTIVEC */ |