1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
|
/*
* Copyright (C) 2014 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "cache.h"
#ifndef MEMSET
# define MEMSET android_memset32
#endif
#ifndef L
# define L(label) .L##label
#endif
#ifndef ALIGN
# define ALIGN(n) .p2align n
#endif
#ifndef cfi_startproc
# define cfi_startproc .cfi_startproc
#endif
#ifndef cfi_endproc
# define cfi_endproc .cfi_endproc
#endif
#ifndef ENTRY
# define ENTRY(name) \
.type name, @function; \
.globl name; \
.p2align 4; \
name: \
cfi_startproc
#endif
#ifndef END
# define END(name) \
cfi_endproc; \
.size name, .-name
#endif
#define JMPTBL(I, B) I - B
/* Branch to an entry in a jump table. TABLE is a jump table with
relative offsets. INDEX is a register contains the index into the
jump table. SCALE is the scale of INDEX. */
#define BRANCH_TO_JMPTBL_ENTRY(TABLE, INDEX, SCALE) \
lea TABLE(%rip), %r11; \
movslq (%r11, INDEX, SCALE), INDEX; \
lea (%r11, INDEX), INDEX; \
jmp *INDEX
.section .text.sse2,"ax",@progbits
ALIGN (4)
ENTRY (MEMSET) // Address in rdi
shr $2, %rdx // Count in rdx
movl %esi, %ecx // Pattern in ecx
cmp $16, %rdx
jae L(16dbwordsormore)
L(write_less16dbwords):
lea (%rdi, %rdx, 4), %rdi
BRANCH_TO_JMPTBL_ENTRY (L(table_less16dbwords), %rdx, 4)
.pushsection .rodata.sse2,"a",@progbits
ALIGN (2)
L(table_less16dbwords):
.int JMPTBL (L(write_0dbwords), L(table_less16dbwords))
.int JMPTBL (L(write_1dbwords), L(table_less16dbwords))
.int JMPTBL (L(write_2dbwords), L(table_less16dbwords))
.int JMPTBL (L(write_3dbwords), L(table_less16dbwords))
.int JMPTBL (L(write_4dbwords), L(table_less16dbwords))
.int JMPTBL (L(write_5dbwords), L(table_less16dbwords))
.int JMPTBL (L(write_6dbwords), L(table_less16dbwords))
.int JMPTBL (L(write_7dbwords), L(table_less16dbwords))
.int JMPTBL (L(write_8dbwords), L(table_less16dbwords))
.int JMPTBL (L(write_9dbwords), L(table_less16dbwords))
.int JMPTBL (L(write_10dbwords), L(table_less16dbwords))
.int JMPTBL (L(write_11dbwords), L(table_less16dbwords))
.int JMPTBL (L(write_12dbwords), L(table_less16dbwords))
.int JMPTBL (L(write_13dbwords), L(table_less16dbwords))
.int JMPTBL (L(write_14dbwords), L(table_less16dbwords))
.int JMPTBL (L(write_15dbwords), L(table_less16dbwords))
.popsection
ALIGN (4)
L(write_15dbwords):
movl %ecx, -60(%rdi)
L(write_14dbwords):
movl %ecx, -56(%rdi)
L(write_13dbwords):
movl %ecx, -52(%rdi)
L(write_12dbwords):
movl %ecx, -48(%rdi)
L(write_11dbwords):
movl %ecx, -44(%rdi)
L(write_10dbwords):
movl %ecx, -40(%rdi)
L(write_9dbwords):
movl %ecx, -36(%rdi)
L(write_8dbwords):
movl %ecx, -32(%rdi)
L(write_7dbwords):
movl %ecx, -28(%rdi)
L(write_6dbwords):
movl %ecx, -24(%rdi)
L(write_5dbwords):
movl %ecx, -20(%rdi)
L(write_4dbwords):
movl %ecx, -16(%rdi)
L(write_3dbwords):
movl %ecx, -12(%rdi)
L(write_2dbwords):
movl %ecx, -8(%rdi)
L(write_1dbwords):
movl %ecx, -4(%rdi)
L(write_0dbwords):
ret
ALIGN (4)
L(16dbwordsormore):
test $3, %edi
jz L(aligned4bytes)
mov %ecx, (%rdi)
mov %ecx, -4(%rdi, %rdx, 4)
sub $1, %rdx
rol $24, %ecx
add $1, %rdi
test $3, %edi
jz L(aligned4bytes)
ror $8, %ecx
add $1, %rdi
test $3, %edi
jz L(aligned4bytes)
ror $8, %ecx
add $1, %rdi
L(aligned4bytes):
shl $2, %rdx
/* Fill xmm0 with the pattern. */
movd %ecx, %xmm0
pshufd $0, %xmm0, %xmm0
testl $0xf, %edi
jz L(aligned_16)
/* RDX > 32 and RDI is not 16 byte aligned. */
movdqu %xmm0, (%rdi)
mov %rdi, %rsi
and $-16, %rdi
add $16, %rdi
sub %rdi, %rsi
add %rsi, %rdx
ALIGN (4)
L(aligned_16):
cmp $128, %rdx
jge L(128bytesormore)
L(aligned_16_less128bytes):
add %rdx, %rdi
shr $2, %rdx
BRANCH_TO_JMPTBL_ENTRY (L(table_16_128bytes), %rdx, 4)
ALIGN (4)
L(128bytesormore):
cmp $SHARED_CACHE_SIZE, %rdx
jg L(128bytesormore_nt)
L(128bytesormore_normal):
sub $128, %rdx
movdqa %xmm0, (%rdi)
movdqa %xmm0, 0x10(%rdi)
movdqa %xmm0, 0x20(%rdi)
movdqa %xmm0, 0x30(%rdi)
movdqa %xmm0, 0x40(%rdi)
movdqa %xmm0, 0x50(%rdi)
movdqa %xmm0, 0x60(%rdi)
movdqa %xmm0, 0x70(%rdi)
lea 128(%rdi), %rdi
cmp $128, %rdx
jl L(128bytesless_normal)
sub $128, %rdx
movdqa %xmm0, (%rdi)
movdqa %xmm0, 0x10(%rdi)
movdqa %xmm0, 0x20(%rdi)
movdqa %xmm0, 0x30(%rdi)
movdqa %xmm0, 0x40(%rdi)
movdqa %xmm0, 0x50(%rdi)
movdqa %xmm0, 0x60(%rdi)
movdqa %xmm0, 0x70(%rdi)
lea 128(%rdi), %rdi
cmp $128, %rdx
jl L(128bytesless_normal)
sub $128, %rdx
movdqa %xmm0, (%rdi)
movdqa %xmm0, 0x10(%rdi)
movdqa %xmm0, 0x20(%rdi)
movdqa %xmm0, 0x30(%rdi)
movdqa %xmm0, 0x40(%rdi)
movdqa %xmm0, 0x50(%rdi)
movdqa %xmm0, 0x60(%rdi)
movdqa %xmm0, 0x70(%rdi)
lea 128(%rdi), %rdi
cmp $128, %rdx
jl L(128bytesless_normal)
sub $128, %rdx
movdqa %xmm0, (%rdi)
movdqa %xmm0, 0x10(%rdi)
movdqa %xmm0, 0x20(%rdi)
movdqa %xmm0, 0x30(%rdi)
movdqa %xmm0, 0x40(%rdi)
movdqa %xmm0, 0x50(%rdi)
movdqa %xmm0, 0x60(%rdi)
movdqa %xmm0, 0x70(%rdi)
lea 128(%rdi), %rdi
cmp $128, %rdx
jge L(128bytesormore_normal)
L(128bytesless_normal):
add %rdx, %rdi
shr $2, %rdx
BRANCH_TO_JMPTBL_ENTRY (L(table_16_128bytes), %rdx, 4)
ALIGN (4)
L(128bytesormore_nt):
sub $128, %rdx
movntdq %xmm0, (%rdi)
movntdq %xmm0, 0x10(%rdi)
movntdq %xmm0, 0x20(%rdi)
movntdq %xmm0, 0x30(%rdi)
movntdq %xmm0, 0x40(%rdi)
movntdq %xmm0, 0x50(%rdi)
movntdq %xmm0, 0x60(%rdi)
movntdq %xmm0, 0x70(%rdi)
lea 128(%rdi), %rdi
cmp $128, %rdx
jge L(128bytesormore_nt)
sfence
add %rdx, %rdi
shr $2, %rdx
BRANCH_TO_JMPTBL_ENTRY (L(table_16_128bytes), %rdx, 4)
.pushsection .rodata.sse2,"a",@progbits
ALIGN (2)
L(table_16_128bytes):
.int JMPTBL (L(aligned_16_0bytes), L(table_16_128bytes))
.int JMPTBL (L(aligned_16_4bytes), L(table_16_128bytes))
.int JMPTBL (L(aligned_16_8bytes), L(table_16_128bytes))
.int JMPTBL (L(aligned_16_12bytes), L(table_16_128bytes))
.int JMPTBL (L(aligned_16_16bytes), L(table_16_128bytes))
.int JMPTBL (L(aligned_16_20bytes), L(table_16_128bytes))
.int JMPTBL (L(aligned_16_24bytes), L(table_16_128bytes))
.int JMPTBL (L(aligned_16_28bytes), L(table_16_128bytes))
.int JMPTBL (L(aligned_16_32bytes), L(table_16_128bytes))
.int JMPTBL (L(aligned_16_36bytes), L(table_16_128bytes))
.int JMPTBL (L(aligned_16_40bytes), L(table_16_128bytes))
.int JMPTBL (L(aligned_16_44bytes), L(table_16_128bytes))
.int JMPTBL (L(aligned_16_48bytes), L(table_16_128bytes))
.int JMPTBL (L(aligned_16_52bytes), L(table_16_128bytes))
.int JMPTBL (L(aligned_16_56bytes), L(table_16_128bytes))
.int JMPTBL (L(aligned_16_60bytes), L(table_16_128bytes))
.int JMPTBL (L(aligned_16_64bytes), L(table_16_128bytes))
.int JMPTBL (L(aligned_16_68bytes), L(table_16_128bytes))
.int JMPTBL (L(aligned_16_72bytes), L(table_16_128bytes))
.int JMPTBL (L(aligned_16_76bytes), L(table_16_128bytes))
.int JMPTBL (L(aligned_16_80bytes), L(table_16_128bytes))
.int JMPTBL (L(aligned_16_84bytes), L(table_16_128bytes))
.int JMPTBL (L(aligned_16_88bytes), L(table_16_128bytes))
.int JMPTBL (L(aligned_16_92bytes), L(table_16_128bytes))
.int JMPTBL (L(aligned_16_96bytes), L(table_16_128bytes))
.int JMPTBL (L(aligned_16_100bytes), L(table_16_128bytes))
.int JMPTBL (L(aligned_16_104bytes), L(table_16_128bytes))
.int JMPTBL (L(aligned_16_108bytes), L(table_16_128bytes))
.int JMPTBL (L(aligned_16_112bytes), L(table_16_128bytes))
.int JMPTBL (L(aligned_16_116bytes), L(table_16_128bytes))
.int JMPTBL (L(aligned_16_120bytes), L(table_16_128bytes))
.int JMPTBL (L(aligned_16_124bytes), L(table_16_128bytes))
.popsection
ALIGN (4)
L(aligned_16_112bytes):
movdqa %xmm0, -112(%rdi)
L(aligned_16_96bytes):
movdqa %xmm0, -96(%rdi)
L(aligned_16_80bytes):
movdqa %xmm0, -80(%rdi)
L(aligned_16_64bytes):
movdqa %xmm0, -64(%rdi)
L(aligned_16_48bytes):
movdqa %xmm0, -48(%rdi)
L(aligned_16_32bytes):
movdqa %xmm0, -32(%rdi)
L(aligned_16_16bytes):
movdqa %xmm0, -16(%rdi)
L(aligned_16_0bytes):
ret
ALIGN (4)
L(aligned_16_116bytes):
movdqa %xmm0, -116(%rdi)
L(aligned_16_100bytes):
movdqa %xmm0, -100(%rdi)
L(aligned_16_84bytes):
movdqa %xmm0, -84(%rdi)
L(aligned_16_68bytes):
movdqa %xmm0, -68(%rdi)
L(aligned_16_52bytes):
movdqa %xmm0, -52(%rdi)
L(aligned_16_36bytes):
movdqa %xmm0, -36(%rdi)
L(aligned_16_20bytes):
movdqa %xmm0, -20(%rdi)
L(aligned_16_4bytes):
movl %ecx, -4(%rdi)
ret
ALIGN (4)
L(aligned_16_120bytes):
movdqa %xmm0, -120(%rdi)
L(aligned_16_104bytes):
movdqa %xmm0, -104(%rdi)
L(aligned_16_88bytes):
movdqa %xmm0, -88(%rdi)
L(aligned_16_72bytes):
movdqa %xmm0, -72(%rdi)
L(aligned_16_56bytes):
movdqa %xmm0, -56(%rdi)
L(aligned_16_40bytes):
movdqa %xmm0, -40(%rdi)
L(aligned_16_24bytes):
movdqa %xmm0, -24(%rdi)
L(aligned_16_8bytes):
movq %xmm0, -8(%rdi)
ret
ALIGN (4)
L(aligned_16_124bytes):
movdqa %xmm0, -124(%rdi)
L(aligned_16_108bytes):
movdqa %xmm0, -108(%rdi)
L(aligned_16_92bytes):
movdqa %xmm0, -92(%rdi)
L(aligned_16_76bytes):
movdqa %xmm0, -76(%rdi)
L(aligned_16_60bytes):
movdqa %xmm0, -60(%rdi)
L(aligned_16_44bytes):
movdqa %xmm0, -44(%rdi)
L(aligned_16_28bytes):
movdqa %xmm0, -28(%rdi)
L(aligned_16_12bytes):
movq %xmm0, -12(%rdi)
movl %ecx, -4(%rdi)
ret
END (MEMSET)
|
