1/* SPDX-License-Identifier: GPL-2.0 */
2/* U1memcpy.S: UltraSPARC-I/II/IIi/IIe optimized memcpy.
3 *
4 * Copyright (C) 1997, 2004 David S. Miller (davem@redhat.com)
5 * Copyright (C) 1996, 1997, 1998, 1999 Jakub Jelinek (jj@ultra.linux.cz)
6 */
7
8#ifdef __KERNEL__
9#include <linux/export.h>
10#include <linux/linkage.h>
11#include <asm/visasm.h>
12#include <asm/asi.h>
13#define GLOBAL_SPARE g7
14#else
15#define GLOBAL_SPARE g5
16#define ASI_BLK_P 0xf0
17#define FPRS_FEF 0x04
18#ifdef MEMCPY_DEBUG
19#define VISEntry rd %fprs, %o5; wr %g0, FPRS_FEF, %fprs; \
20 clr %g1; clr %g2; clr %g3; subcc %g0, %g0, %g0;
21#define VISExit and %o5, FPRS_FEF, %o5; wr %o5, 0x0, %fprs
22#else
23#define VISEntry rd %fprs, %o5; wr %g0, FPRS_FEF, %fprs
24#define VISExit and %o5, FPRS_FEF, %o5; wr %o5, 0x0, %fprs
25#endif
26#endif
27
28#ifndef EX_LD
29#define EX_LD(x,y) x
30#endif
31#ifndef EX_LD_FP
32#define EX_LD_FP(x,y) x
33#endif
34
35#ifndef EX_ST
36#define EX_ST(x,y) x
37#endif
38#ifndef EX_ST_FP
39#define EX_ST_FP(x,y) x
40#endif
41
42#ifndef LOAD
43#define LOAD(type,addr,dest) type [addr], dest
44#endif
45
46#ifndef LOAD_BLK
47#define LOAD_BLK(addr,dest) ldda [addr] ASI_BLK_P, dest
48#endif
49
50#ifndef STORE
51#define STORE(type,src,addr) type src, [addr]
52#endif
53
54#ifndef STORE_BLK
55#define STORE_BLK(src,addr) stda src, [addr] ASI_BLK_P
56#endif
57
58#ifndef FUNC_NAME
59#define FUNC_NAME memcpy
60#endif
61
62#ifndef PREAMBLE
63#define PREAMBLE
64#endif
65
66#ifndef XCC
67#define XCC xcc
68#endif
69
70#define FREG_FROB(f1, f2, f3, f4, f5, f6, f7, f8, f9) \
71 faligndata %f1, %f2, %f48; \
72 faligndata %f2, %f3, %f50; \
73 faligndata %f3, %f4, %f52; \
74 faligndata %f4, %f5, %f54; \
75 faligndata %f5, %f6, %f56; \
76 faligndata %f6, %f7, %f58; \
77 faligndata %f7, %f8, %f60; \
78 faligndata %f8, %f9, %f62;
79
80#define MAIN_LOOP_CHUNK(src, dest, fdest, fsrc, jmptgt) \
81 EX_LD_FP(LOAD_BLK(%src, %fdest), U1_gs_80_fp); \
82 EX_ST_FP(STORE_BLK(%fsrc, %dest), U1_gs_80_fp); \
83 add %src, 0x40, %src; \
84 subcc %GLOBAL_SPARE, 0x40, %GLOBAL_SPARE; \
85 be,pn %xcc, jmptgt; \
86 add %dest, 0x40, %dest; \
87
88#define LOOP_CHUNK1(src, dest, branch_dest) \
89 MAIN_LOOP_CHUNK(src, dest, f0, f48, branch_dest)
90#define LOOP_CHUNK2(src, dest, branch_dest) \
91 MAIN_LOOP_CHUNK(src, dest, f16, f48, branch_dest)
92#define LOOP_CHUNK3(src, dest, branch_dest) \
93 MAIN_LOOP_CHUNK(src, dest, f32, f48, branch_dest)
94
95#define DO_SYNC membar #Sync;
96#define STORE_SYNC(dest, fsrc) \
97 EX_ST_FP(STORE_BLK(%fsrc, %dest), U1_gs_80_fp); \
98 add %dest, 0x40, %dest; \
99 DO_SYNC
100
101#define STORE_JUMP(dest, fsrc, target) \
102 EX_ST_FP(STORE_BLK(%fsrc, %dest), U1_gs_40_fp); \
103 add %dest, 0x40, %dest; \
104 ba,pt %xcc, target; \
105 nop;
106
107#define FINISH_VISCHUNK(dest, f0, f1) \
108 subcc %g3, 8, %g3; \
109 bl,pn %xcc, 95f; \
110 faligndata %f0, %f1, %f48; \
111 EX_ST_FP(STORE(std, %f48, %dest), U1_g3_8_fp); \
112 add %dest, 8, %dest;
113
114#define UNEVEN_VISCHUNK_LAST(dest, f0, f1) \
115 subcc %g3, 8, %g3; \
116 bl,pn %xcc, 95f; \
117 fsrc2 %f0, %f1;
118
119#define UNEVEN_VISCHUNK(dest, f0, f1) \
120 UNEVEN_VISCHUNK_LAST(dest, f0, f1) \
121 ba,a,pt %xcc, 93f;
122
123 .register %g2,#scratch
124 .register %g3,#scratch
125
126 .text
127#ifndef EX_RETVAL
128#define EX_RETVAL(x) x
129ENTRY(U1_g1_1_fp)
130 VISExitHalf
131 add %g1, 1, %g1
132 add %g1, %g2, %g1
133 retl
134 add %g1, %o2, %o0
135ENDPROC(U1_g1_1_fp)
136ENTRY(U1_g2_0_fp)
137 VISExitHalf
138 retl
139 add %g2, %o2, %o0
140ENDPROC(U1_g2_0_fp)
141ENTRY(U1_g2_8_fp)
142 VISExitHalf
143 add %g2, 8, %g2
144 retl
145 add %g2, %o2, %o0
146ENDPROC(U1_g2_8_fp)
147ENTRY(U1_gs_0_fp)
148 VISExitHalf
149 add %GLOBAL_SPARE, %g3, %o0
150 retl
151 add %o0, %o2, %o0
152ENDPROC(U1_gs_0_fp)
153ENTRY(U1_gs_80_fp)
154 VISExitHalf
155 add %GLOBAL_SPARE, 0x80, %GLOBAL_SPARE
156 add %GLOBAL_SPARE, %g3, %o0
157 retl
158 add %o0, %o2, %o0
159ENDPROC(U1_gs_80_fp)
160ENTRY(U1_gs_40_fp)
161 VISExitHalf
162 add %GLOBAL_SPARE, 0x40, %GLOBAL_SPARE
163 add %GLOBAL_SPARE, %g3, %o0
164 retl
165 add %o0, %o2, %o0
166ENDPROC(U1_gs_40_fp)
167ENTRY(U1_g3_0_fp)
168 VISExitHalf
169 retl
170 add %g3, %o2, %o0
171ENDPROC(U1_g3_0_fp)
172ENTRY(U1_g3_8_fp)
173 VISExitHalf
174 add %g3, 8, %g3
175 retl
176 add %g3, %o2, %o0
177ENDPROC(U1_g3_8_fp)
178ENTRY(U1_o2_0_fp)
179 VISExitHalf
180 retl
181 mov %o2, %o0
182ENDPROC(U1_o2_0_fp)
183ENTRY(U1_o2_1_fp)
184 VISExitHalf
185 retl
186 add %o2, 1, %o0
187ENDPROC(U1_o2_1_fp)
188ENTRY(U1_gs_0)
189 VISExitHalf
190 retl
191 add %GLOBAL_SPARE, %o2, %o0
192ENDPROC(U1_gs_0)
193ENTRY(U1_gs_8)
194 VISExitHalf
195 add %GLOBAL_SPARE, %o2, %GLOBAL_SPARE
196 retl
197 add %GLOBAL_SPARE, 0x8, %o0
198ENDPROC(U1_gs_8)
199ENTRY(U1_gs_10)
200 VISExitHalf
201 add %GLOBAL_SPARE, %o2, %GLOBAL_SPARE
202 retl
203 add %GLOBAL_SPARE, 0x10, %o0
204ENDPROC(U1_gs_10)
205ENTRY(U1_o2_0)
206 retl
207 mov %o2, %o0
208ENDPROC(U1_o2_0)
209ENTRY(U1_o2_8)
210 retl
211 add %o2, 8, %o0
212ENDPROC(U1_o2_8)
213ENTRY(U1_o2_4)
214 retl
215 add %o2, 4, %o0
216ENDPROC(U1_o2_4)
217ENTRY(U1_o2_1)
218 retl
219 add %o2, 1, %o0
220ENDPROC(U1_o2_1)
221ENTRY(U1_g1_0)
222 retl
223 add %g1, %o2, %o0
224ENDPROC(U1_g1_0)
225ENTRY(U1_g1_1)
226 add %g1, 1, %g1
227 retl
228 add %g1, %o2, %o0
229ENDPROC(U1_g1_1)
230ENTRY(U1_gs_0_o2_adj)
231 and %o2, 7, %o2
232 retl
233 add %GLOBAL_SPARE, %o2, %o0
234ENDPROC(U1_gs_0_o2_adj)
235ENTRY(U1_gs_8_o2_adj)
236 and %o2, 7, %o2
237 add %GLOBAL_SPARE, 8, %GLOBAL_SPARE
238 retl
239 add %GLOBAL_SPARE, %o2, %o0
240ENDPROC(U1_gs_8_o2_adj)
241#endif
242
243 .align 64
244
245 .globl FUNC_NAME
246 .type FUNC_NAME,#function
247FUNC_NAME: /* %o0=dst, %o1=src, %o2=len */
248 srlx %o2, 31, %g2
249 cmp %g2, 0
250 tne %xcc, 5
251 PREAMBLE
252 mov %o0, %o4
253 cmp %o2, 0
254 be,pn %XCC, 85f
255 or %o0, %o1, %o3
256 cmp %o2, 16
257 blu,a,pn %XCC, 80f
258 or %o3, %o2, %o3
259
260 cmp %o2, (5 * 64)
261 blu,pt %XCC, 70f
262 andcc %o3, 0x7, %g0
263
264 /* Clobbers o5/g1/g2/g3/g7/icc/xcc. */
265 VISEntry
266
267 /* Is 'dst' already aligned on an 64-byte boundary? */
268 andcc %o0, 0x3f, %g2
269 be,pt %XCC, 2f
270
271 /* Compute abs((dst & 0x3f) - 0x40) into %g2. This is the number
272 * of bytes to copy to make 'dst' 64-byte aligned. We pre-
273 * subtract this from 'len'.
274 */
275 sub %o0, %o1, %GLOBAL_SPARE
276 sub %g2, 0x40, %g2
277 sub %g0, %g2, %g2
278 sub %o2, %g2, %o2
279 andcc %g2, 0x7, %g1
280 be,pt %icc, 2f
281 and %g2, 0x38, %g2
282
2831: subcc %g1, 0x1, %g1
284 EX_LD_FP(LOAD(ldub, %o1 + 0x00, %o3), U1_g1_1_fp)
285 EX_ST_FP(STORE(stb, %o3, %o1 + %GLOBAL_SPARE), U1_g1_1_fp)
286 bgu,pt %XCC, 1b
287 add %o1, 0x1, %o1
288
289 add %o1, %GLOBAL_SPARE, %o0
290
2912: cmp %g2, 0x0
292 and %o1, 0x7, %g1
293 be,pt %icc, 3f
294 alignaddr %o1, %g0, %o1
295
296 EX_LD_FP(LOAD(ldd, %o1, %f4), U1_g2_0_fp)
2971: EX_LD_FP(LOAD(ldd, %o1 + 0x8, %f6), U1_g2_0_fp)
298 add %o1, 0x8, %o1
299 subcc %g2, 0x8, %g2
300 faligndata %f4, %f6, %f0
301 EX_ST_FP(STORE(std, %f0, %o0), U1_g2_8_fp)
302 be,pn %icc, 3f
303 add %o0, 0x8, %o0
304
305 EX_LD_FP(LOAD(ldd, %o1 + 0x8, %f4), U1_g2_0_fp)
306 add %o1, 0x8, %o1
307 subcc %g2, 0x8, %g2
308 faligndata %f6, %f4, %f0
309 EX_ST_FP(STORE(std, %f0, %o0), U1_g2_8_fp)
310 bne,pt %icc, 1b
311 add %o0, 0x8, %o0
312
313 /* Destination is 64-byte aligned. */
3143:
315 membar #LoadStore | #StoreStore | #StoreLoad
316
317 subcc %o2, 0x40, %GLOBAL_SPARE
318 add %o1, %g1, %g1
319 andncc %GLOBAL_SPARE, (0x40 - 1), %GLOBAL_SPARE
320 srl %g1, 3, %g2
321 sub %o2, %GLOBAL_SPARE, %g3
322 andn %o1, (0x40 - 1), %o1
323 and %g2, 7, %g2
324 andncc %g3, 0x7, %g3
325 fsrc2 %f0, %f2
326 sub %g3, 0x8, %g3
327 sub %o2, %GLOBAL_SPARE, %o2
328
329 add %g1, %GLOBAL_SPARE, %g1
330 subcc %o2, %g3, %o2
331
332 EX_LD_FP(LOAD_BLK(%o1, %f0), U1_gs_0_fp)
333 add %o1, 0x40, %o1
334 add %g1, %g3, %g1
335 EX_LD_FP(LOAD_BLK(%o1, %f16), U1_gs_0_fp)
336 add %o1, 0x40, %o1
337 sub %GLOBAL_SPARE, 0x80, %GLOBAL_SPARE
338 EX_LD_FP(LOAD_BLK(%o1, %f32), U1_gs_80_fp)
339 add %o1, 0x40, %o1
340
341 /* There are 8 instances of the unrolled loop,
342 * one for each possible alignment of the
343 * source buffer. Each loop instance is 452
344 * bytes.
345 */
346 sll %g2, 3, %o3
347 sub %o3, %g2, %o3
348 sllx %o3, 4, %o3
349 add %o3, %g2, %o3
350 sllx %o3, 2, %g2
3511: rd %pc, %o3
352 add %o3, %lo(1f - 1b), %o3
353 jmpl %o3 + %g2, %g0
354 nop
355
356 .align 64
3571: FREG_FROB(f0, f2, f4, f6, f8, f10,f12,f14,f16)
358 LOOP_CHUNK1(o1, o0, 1f)
359 FREG_FROB(f16,f18,f20,f22,f24,f26,f28,f30,f32)
360 LOOP_CHUNK2(o1, o0, 2f)
361 FREG_FROB(f32,f34,f36,f38,f40,f42,f44,f46,f0)
362 LOOP_CHUNK3(o1, o0, 3f)
363 ba,pt %xcc, 1b+4
364 faligndata %f0, %f2, %f48
3651: FREG_FROB(f16,f18,f20,f22,f24,f26,f28,f30,f32)
366 STORE_SYNC(o0, f48)
367 FREG_FROB(f32,f34,f36,f38,f40,f42,f44,f46,f0)
368 STORE_JUMP(o0, f48, 40f)
3692: FREG_FROB(f32,f34,f36,f38,f40,f42,f44,f46,f0)
370 STORE_SYNC(o0, f48)
371 FREG_FROB(f0, f2, f4, f6, f8, f10,f12,f14,f16)
372 STORE_JUMP(o0, f48, 48f)
3733: FREG_FROB(f0, f2, f4, f6, f8, f10,f12,f14,f16)
374 STORE_SYNC(o0, f48)
375 FREG_FROB(f16,f18,f20,f22,f24,f26,f28,f30,f32)
376 STORE_JUMP(o0, f48, 56f)
377
3781: FREG_FROB(f2, f4, f6, f8, f10,f12,f14,f16,f18)
379 LOOP_CHUNK1(o1, o0, 1f)
380 FREG_FROB(f18,f20,f22,f24,f26,f28,f30,f32,f34)
381 LOOP_CHUNK2(o1, o0, 2f)
382 FREG_FROB(f34,f36,f38,f40,f42,f44,f46,f0, f2)
383 LOOP_CHUNK3(o1, o0, 3f)
384 ba,pt %xcc, 1b+4
385 faligndata %f2, %f4, %f48
3861: FREG_FROB(f18,f20,f22,f24,f26,f28,f30,f32,f34)
387 STORE_SYNC(o0, f48)
388 FREG_FROB(f34,f36,f38,f40,f42,f44,f46,f0, f2)
389 STORE_JUMP(o0, f48, 41f)
3902: FREG_FROB(f34,f36,f38,f40,f42,f44,f46,f0, f2)
391 STORE_SYNC(o0, f48)
392 FREG_FROB(f2, f4, f6, f8, f10,f12,f14,f16,f18)
393 STORE_JUMP(o0, f48, 49f)
3943: FREG_FROB(f2, f4, f6, f8, f10,f12,f14,f16,f18)
395 STORE_SYNC(o0, f48)
396 FREG_FROB(f18,f20,f22,f24,f26,f28,f30,f32,f34)
397 STORE_JUMP(o0, f48, 57f)
398
3991: FREG_FROB(f4, f6, f8, f10,f12,f14,f16,f18,f20)
400 LOOP_CHUNK1(o1, o0, 1f)
401 FREG_FROB(f20,f22,f24,f26,f28,f30,f32,f34,f36)
402 LOOP_CHUNK2(o1, o0, 2f)
403 FREG_FROB(f36,f38,f40,f42,f44,f46,f0, f2, f4)
404 LOOP_CHUNK3(o1, o0, 3f)
405 ba,pt %xcc, 1b+4
406 faligndata %f4, %f6, %f48
4071: FREG_FROB(f20,f22,f24,f26,f28,f30,f32,f34,f36)
408 STORE_SYNC(o0, f48)
409 FREG_FROB(f36,f38,f40,f42,f44,f46,f0, f2, f4)
410 STORE_JUMP(o0, f48, 42f)
4112: FREG_FROB(f36,f38,f40,f42,f44,f46,f0, f2, f4)
412 STORE_SYNC(o0, f48)
413 FREG_FROB(f4, f6, f8, f10,f12,f14,f16,f18,f20)
414 STORE_JUMP(o0, f48, 50f)
4153: FREG_FROB(f4, f6, f8, f10,f12,f14,f16,f18,f20)
416 STORE_SYNC(o0, f48)
417 FREG_FROB(f20,f22,f24,f26,f28,f30,f32,f34,f36)
418 STORE_JUMP(o0, f48, 58f)
419
4201: FREG_FROB(f6, f8, f10,f12,f14,f16,f18,f20,f22)
421 LOOP_CHUNK1(o1, o0, 1f)
422 FREG_FROB(f22,f24,f26,f28,f30,f32,f34,f36,f38)
423 LOOP_CHUNK2(o1, o0, 2f)
424 FREG_FROB(f38,f40,f42,f44,f46,f0, f2, f4, f6)
425 LOOP_CHUNK3(o1, o0, 3f)
426 ba,pt %xcc, 1b+4
427 faligndata %f6, %f8, %f48
4281: FREG_FROB(f22,f24,f26,f28,f30,f32,f34,f36,f38)
429 STORE_SYNC(o0, f48)
430 FREG_FROB(f38,f40,f42,f44,f46,f0, f2, f4, f6)
431 STORE_JUMP(o0, f48, 43f)
4322: FREG_FROB(f38,f40,f42,f44,f46,f0, f2, f4, f6)
433 STORE_SYNC(o0, f48)
434 FREG_FROB(f6, f8, f10,f12,f14,f16,f18,f20,f22)
435 STORE_JUMP(o0, f48, 51f)
4363: FREG_FROB(f6, f8, f10,f12,f14,f16,f18,f20,f22)
437 STORE_SYNC(o0, f48)
438 FREG_FROB(f22,f24,f26,f28,f30,f32,f34,f36,f38)
439 STORE_JUMP(o0, f48, 59f)
440
4411: FREG_FROB(f8, f10,f12,f14,f16,f18,f20,f22,f24)
442 LOOP_CHUNK1(o1, o0, 1f)
443 FREG_FROB(f24,f26,f28,f30,f32,f34,f36,f38,f40)
444 LOOP_CHUNK2(o1, o0, 2f)
445 FREG_FROB(f40,f42,f44,f46,f0, f2, f4, f6, f8)
446 LOOP_CHUNK3(o1, o0, 3f)
447 ba,pt %xcc, 1b+4
448 faligndata %f8, %f10, %f48
4491: FREG_FROB(f24,f26,f28,f30,f32,f34,f36,f38,f40)
450 STORE_SYNC(o0, f48)
451 FREG_FROB(f40,f42,f44,f46,f0, f2, f4, f6, f8)
452 STORE_JUMP(o0, f48, 44f)
4532: FREG_FROB(f40,f42,f44,f46,f0, f2, f4, f6, f8)
454 STORE_SYNC(o0, f48)
455 FREG_FROB(f8, f10,f12,f14,f16,f18,f20,f22,f24)
456 STORE_JUMP(o0, f48, 52f)
4573: FREG_FROB(f8, f10,f12,f14,f16,f18,f20,f22,f24)
458 STORE_SYNC(o0, f48)
459 FREG_FROB(f24,f26,f28,f30,f32,f34,f36,f38,f40)
460 STORE_JUMP(o0, f48, 60f)
461
4621: FREG_FROB(f10,f12,f14,f16,f18,f20,f22,f24,f26)
463 LOOP_CHUNK1(o1, o0, 1f)
464 FREG_FROB(f26,f28,f30,f32,f34,f36,f38,f40,f42)
465 LOOP_CHUNK2(o1, o0, 2f)
466 FREG_FROB(f42,f44,f46,f0, f2, f4, f6, f8, f10)
467 LOOP_CHUNK3(o1, o0, 3f)
468 ba,pt %xcc, 1b+4
469 faligndata %f10, %f12, %f48
4701: FREG_FROB(f26,f28,f30,f32,f34,f36,f38,f40,f42)
471 STORE_SYNC(o0, f48)
472 FREG_FROB(f42,f44,f46,f0, f2, f4, f6, f8, f10)
473 STORE_JUMP(o0, f48, 45f)
4742: FREG_FROB(f42,f44,f46,f0, f2, f4, f6, f8, f10)
475 STORE_SYNC(o0, f48)
476 FREG_FROB(f10,f12,f14,f16,f18,f20,f22,f24,f26)
477 STORE_JUMP(o0, f48, 53f)
4783: FREG_FROB(f10,f12,f14,f16,f18,f20,f22,f24,f26)
479 STORE_SYNC(o0, f48)
480 FREG_FROB(f26,f28,f30,f32,f34,f36,f38,f40,f42)
481 STORE_JUMP(o0, f48, 61f)
482
4831: FREG_FROB(f12,f14,f16,f18,f20,f22,f24,f26,f28)
484 LOOP_CHUNK1(o1, o0, 1f)
485 FREG_FROB(f28,f30,f32,f34,f36,f38,f40,f42,f44)
486 LOOP_CHUNK2(o1, o0, 2f)
487 FREG_FROB(f44,f46,f0, f2, f4, f6, f8, f10,f12)
488 LOOP_CHUNK3(o1, o0, 3f)
489 ba,pt %xcc, 1b+4
490 faligndata %f12, %f14, %f48
4911: FREG_FROB(f28,f30,f32,f34,f36,f38,f40,f42,f44)
492 STORE_SYNC(o0, f48)
493 FREG_FROB(f44,f46,f0, f2, f4, f6, f8, f10,f12)
494 STORE_JUMP(o0, f48, 46f)
4952: FREG_FROB(f44,f46,f0, f2, f4, f6, f8, f10,f12)
496 STORE_SYNC(o0, f48)
497 FREG_FROB(f12,f14,f16,f18,f20,f22,f24,f26,f28)
498 STORE_JUMP(o0, f48, 54f)
4993: FREG_FROB(f12,f14,f16,f18,f20,f22,f24,f26,f28)
500 STORE_SYNC(o0, f48)
501 FREG_FROB(f28,f30,f32,f34,f36,f38,f40,f42,f44)
502 STORE_JUMP(o0, f48, 62f)
503
5041: FREG_FROB(f14,f16,f18,f20,f22,f24,f26,f28,f30)
505 LOOP_CHUNK1(o1, o0, 1f)
506 FREG_FROB(f30,f32,f34,f36,f38,f40,f42,f44,f46)
507 LOOP_CHUNK2(o1, o0, 2f)
508 FREG_FROB(f46,f0, f2, f4, f6, f8, f10,f12,f14)
509 LOOP_CHUNK3(o1, o0, 3f)
510 ba,pt %xcc, 1b+4
511 faligndata %f14, %f16, %f48
5121: FREG_FROB(f30,f32,f34,f36,f38,f40,f42,f44,f46)
513 STORE_SYNC(o0, f48)
514 FREG_FROB(f46,f0, f2, f4, f6, f8, f10,f12,f14)
515 STORE_JUMP(o0, f48, 47f)
5162: FREG_FROB(f46,f0, f2, f4, f6, f8, f10,f12,f14)
517 STORE_SYNC(o0, f48)
518 FREG_FROB(f14,f16,f18,f20,f22,f24,f26,f28,f30)
519 STORE_JUMP(o0, f48, 55f)
5203: FREG_FROB(f14,f16,f18,f20,f22,f24,f26,f28,f30)
521 STORE_SYNC(o0, f48)
522 FREG_FROB(f30,f32,f34,f36,f38,f40,f42,f44,f46)
523 STORE_JUMP(o0, f48, 63f)
524
52540: FINISH_VISCHUNK(o0, f0, f2)
52641: FINISH_VISCHUNK(o0, f2, f4)
52742: FINISH_VISCHUNK(o0, f4, f6)
52843: FINISH_VISCHUNK(o0, f6, f8)
52944: FINISH_VISCHUNK(o0, f8, f10)
53045: FINISH_VISCHUNK(o0, f10, f12)
53146: FINISH_VISCHUNK(o0, f12, f14)
53247: UNEVEN_VISCHUNK(o0, f14, f0)
53348: FINISH_VISCHUNK(o0, f16, f18)
53449: FINISH_VISCHUNK(o0, f18, f20)
53550: FINISH_VISCHUNK(o0, f20, f22)
53651: FINISH_VISCHUNK(o0, f22, f24)
53752: FINISH_VISCHUNK(o0, f24, f26)
53853: FINISH_VISCHUNK(o0, f26, f28)
53954: FINISH_VISCHUNK(o0, f28, f30)
54055: UNEVEN_VISCHUNK(o0, f30, f0)
54156: FINISH_VISCHUNK(o0, f32, f34)
54257: FINISH_VISCHUNK(o0, f34, f36)
54358: FINISH_VISCHUNK(o0, f36, f38)
54459: FINISH_VISCHUNK(o0, f38, f40)
54560: FINISH_VISCHUNK(o0, f40, f42)
54661: FINISH_VISCHUNK(o0, f42, f44)
54762: FINISH_VISCHUNK(o0, f44, f46)
54863: UNEVEN_VISCHUNK_LAST(o0, f46, f0)
549
55093: EX_LD_FP(LOAD(ldd, %o1, %f2), U1_g3_0_fp)
551 add %o1, 8, %o1
552 subcc %g3, 8, %g3
553 faligndata %f0, %f2, %f8
554 EX_ST_FP(STORE(std, %f8, %o0), U1_g3_8_fp)
555 bl,pn %xcc, 95f
556 add %o0, 8, %o0
557 EX_LD_FP(LOAD(ldd, %o1, %f0), U1_g3_0_fp)
558 add %o1, 8, %o1
559 subcc %g3, 8, %g3
560 faligndata %f2, %f0, %f8
561 EX_ST_FP(STORE(std, %f8, %o0), U1_g3_8_fp)
562 bge,pt %xcc, 93b
563 add %o0, 8, %o0
564
56595: brz,pt %o2, 2f
566 mov %g1, %o1
567
5681: EX_LD_FP(LOAD(ldub, %o1, %o3), U1_o2_0_fp)
569 add %o1, 1, %o1
570 subcc %o2, 1, %o2
571 EX_ST_FP(STORE(stb, %o3, %o0), U1_o2_1_fp)
572 bne,pt %xcc, 1b
573 add %o0, 1, %o0
574
5752: membar #StoreLoad | #StoreStore
576 VISExit
577 retl
578 mov EX_RETVAL(%o4), %o0
579
580 .align 64
58170: /* 16 < len <= (5 * 64) */
582 bne,pn %XCC, 75f
583 sub %o0, %o1, %o3
584
58572: andn %o2, 0xf, %GLOBAL_SPARE
586 and %o2, 0xf, %o2
5871: EX_LD(LOAD(ldx, %o1 + 0x00, %o5), U1_gs_0)
588 EX_LD(LOAD(ldx, %o1 + 0x08, %g1), U1_gs_0)
589 subcc %GLOBAL_SPARE, 0x10, %GLOBAL_SPARE
590 EX_ST(STORE(stx, %o5, %o1 + %o3), U1_gs_10)
591 add %o1, 0x8, %o1
592 EX_ST(STORE(stx, %g1, %o1 + %o3), U1_gs_8)
593 bgu,pt %XCC, 1b
594 add %o1, 0x8, %o1
59573: andcc %o2, 0x8, %g0
596 be,pt %XCC, 1f
597 nop
598 EX_LD(LOAD(ldx, %o1, %o5), U1_o2_0)
599 sub %o2, 0x8, %o2
600 EX_ST(STORE(stx, %o5, %o1 + %o3), U1_o2_8)
601 add %o1, 0x8, %o1
6021: andcc %o2, 0x4, %g0
603 be,pt %XCC, 1f
604 nop
605 EX_LD(LOAD(lduw, %o1, %o5), U1_o2_0)
606 sub %o2, 0x4, %o2
607 EX_ST(STORE(stw, %o5, %o1 + %o3), U1_o2_4)
608 add %o1, 0x4, %o1
6091: cmp %o2, 0
610 be,pt %XCC, 85f
611 nop
612 ba,pt %xcc, 90f
613 nop
614
61575: andcc %o0, 0x7, %g1
616 sub %g1, 0x8, %g1
617 be,pn %icc, 2f
618 sub %g0, %g1, %g1
619 sub %o2, %g1, %o2
620
6211: EX_LD(LOAD(ldub, %o1, %o5), U1_g1_0)
622 subcc %g1, 1, %g1
623 EX_ST(STORE(stb, %o5, %o1 + %o3), U1_g1_1)
624 bgu,pt %icc, 1b
625 add %o1, 1, %o1
626
6272: add %o1, %o3, %o0
628 andcc %o1, 0x7, %g1
629 bne,pt %icc, 8f
630 sll %g1, 3, %g1
631
632 cmp %o2, 16
633 bgeu,pt %icc, 72b
634 nop
635 ba,a,pt %xcc, 73b
636
6378: mov 64, %o3
638 andn %o1, 0x7, %o1
639 EX_LD(LOAD(ldx, %o1, %g2), U1_o2_0)
640 sub %o3, %g1, %o3
641 andn %o2, 0x7, %GLOBAL_SPARE
642 sllx %g2, %g1, %g2
6431: EX_LD(LOAD(ldx, %o1 + 0x8, %g3), U1_gs_0_o2_adj)
644 subcc %GLOBAL_SPARE, 0x8, %GLOBAL_SPARE
645 add %o1, 0x8, %o1
646 srlx %g3, %o3, %o5
647 or %o5, %g2, %o5
648 EX_ST(STORE(stx, %o5, %o0), U1_gs_8_o2_adj)
649 add %o0, 0x8, %o0
650 bgu,pt %icc, 1b
651 sllx %g3, %g1, %g2
652
653 srl %g1, 3, %g1
654 andcc %o2, 0x7, %o2
655 be,pn %icc, 85f
656 add %o1, %g1, %o1
657 ba,pt %xcc, 90f
658 sub %o0, %o1, %o3
659
660 .align 64
66180: /* 0 < len <= 16 */
662 andcc %o3, 0x3, %g0
663 bne,pn %XCC, 90f
664 sub %o0, %o1, %o3
665
6661: EX_LD(LOAD(lduw, %o1, %g1), U1_o2_0)
667 subcc %o2, 4, %o2
668 EX_ST(STORE(stw, %g1, %o1 + %o3), U1_o2_4)
669 bgu,pt %XCC, 1b
670 add %o1, 4, %o1
671
67285: retl
673 mov EX_RETVAL(%o4), %o0
674
675 .align 32
67690: EX_LD(LOAD(ldub, %o1, %g1), U1_o2_0)
677 subcc %o2, 1, %o2
678 EX_ST(STORE(stb, %g1, %o1 + %o3), U1_o2_1)
679 bgu,pt %XCC, 90b
680 add %o1, 1, %o1
681 retl
682 mov EX_RETVAL(%o4), %o0
683
684 .size FUNC_NAME, .-FUNC_NAME
685EXPORT_SYMBOL(FUNC_NAME)
686

source code of linux/arch/sparc/lib/U1memcpy.S