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
|
#!/usr/bin/env perl
#
while (($output=shift) && ($output!~/\w[\w\-]*\.\w+$/)) {}
open STDOUT,">$output";
$code.=<<___;
.text
.if .ASSEMBLER_VERSION<7000000
.asg 0,__TI_EABI__
.endif
.if __TI_EABI__
.asg OPENSSL_rdtsc,_OPENSSL_rdtsc
.asg OPENSSL_cleanse,_OPENSSL_cleanse
.asg OPENSSL_atomic_add,_OPENSSL_atomic_add
.asg OPENSSL_wipe_cpu,_OPENSSL_wipe_cpu
.asg OPENSSL_instrument_bus,_OPENSSL_instrument_bus
.asg OPENSSL_instrument_bus2,_OPENSSL_instrument_bus2
.endif
.asg B3,RA
.global _OPENSSL_rdtsc
_OPENSSL_rdtsc:
.asmfunc
B RA
MVC TSCL,B0
MVC TSCH,B1
[!B0] MVC B0,TSCL ; start TSC
MV B0,A4
MV B1,A5
.endasmfunc
.global _OPENSSL_cleanse
_OPENSSL_cleanse:
.asmfunc
ZERO A3:A2
|| ZERO B2
|| SHRU B4,3,B0 ; is length >= 8
|| ADD 1,A4,B6
[!B0] BNOP RA
|| ZERO A1
|| ZERO B1
[B0] MVC B0,ILC
||[!B0] CMPLT 0,B4,A1
||[!B0] CMPLT 1,B4,B1
[A1] STB A2,*A4++[2]
|| [B1] STB B2,*B6++[2]
||[!B0] CMPLT 2,B4,A1
||[!B0] CMPLT 3,B4,B1
[A1] STB A2,*A4++[2]
|| [B1] STB B2,*B6++[2]
||[!B0] CMPLT 4,B4,A1
||[!B0] CMPLT 5,B4,B1
[A1] STB A2,*A4++[2]
|| [B1] STB B2,*B6++[2]
||[!B0] CMPLT 6,B4,A1
[A1] STB A2,*A4++[2]
SPLOOP 1
STNDW A3:A2,*A4++
|| SUB B4,8,B4
SPKERNEL
MV B4,B0 ; remaining bytes
|| ADD 1,A4,B6
|| BNOP RA
[B0] CMPLT 0,B0,A1
|| [B0] CMPLT 1,B0,B1
[A1] STB A2,*A4++[2]
|| [B1] STB B2,*B6++[2]
|| [B0] CMPLT 2,B0,A1
|| [B0] CMPLT 3,B0,B1
[A1] STB A2,*A4++[2]
|| [B1] STB B2,*B6++[2]
|| [B0] CMPLT 4,B0,A1
|| [B0] CMPLT 5,B0,B1
[A1] STB A2,*A4++[2]
|| [B1] STB B2,*B6++[2]
|| [B0] CMPLT 6,B0,A1
[A1] STB A2,*A4++[2]
.endasmfunc
.global _OPENSSL_atomic_add
_OPENSSL_atomic_add:
.asmfunc
MV A4,B0
atomic_add?:
LL *B0,B5
NOP 4
ADD B4,B5,B5
SL B5,*B0
CMTL *B0,B1
NOP 4
[!B1] B atomic_add?
[B1] BNOP RA,4
MV B5,A4
.endasmfunc
.global _OPENSSL_wipe_cpu
_OPENSSL_wipe_cpu:
.asmfunc
ZERO A0
|| ZERO B0
|| ZERO A1
|| ZERO B1
ZERO A3:A2
|| MVD B0,B2
|| ZERO A4
|| ZERO B4
|| ZERO A5
|| ZERO B5
|| BNOP RA
ZERO A7:A6
|| ZERO B7:B6
|| ZERO A8
|| ZERO B8
|| ZERO A9
|| ZERO B9
ZERO A17:A16
|| ZERO B17:B16
|| ZERO A18
|| ZERO B18
|| ZERO A19
|| ZERO B19
ZERO A21:A20
|| ZERO B21:B20
|| ZERO A22
|| ZERO B22
|| ZERO A23
|| ZERO B23
ZERO A25:A24
|| ZERO B25:B24
|| ZERO A26
|| ZERO B26
|| ZERO A27
|| ZERO B27
ZERO A29:A28
|| ZERO B29:B28
|| ZERO A30
|| ZERO B30
|| ZERO A31
|| ZERO B31
.endasmfunc
CLFLUSH .macro CONTROL,ADDR,LEN
B passthrough?
|| STW ADDR,*CONTROL[0]
STW LEN,*CONTROL[1]
spinlock?:
LDW *CONTROL[1],A0
NOP 3
passthrough?:
NOP
[A0] BNOP spinlock?,5
.endm
.global _OPENSSL_instrument_bus
_OPENSSL_instrument_bus:
.asmfunc
MV B4,B0 ; reassign sizeof(output)
|| MV A4,B4 ; reassign output
|| MVK 0x00004030,A3
MV B0,A4 ; return value
|| MVK 1,A1
|| MVKH 0x01840000,A3 ; L1DWIBAR
MVC TSCL,B8 ; collect 1st tick
|| MVK 0x00004010,A5
MV B8,B9 ; lasttick = tick
|| MVK 0,B7 ; lastdiff = 0
|| MVKH 0x01840000,A5 ; L2WIBAR
CLFLUSH A3,B4,A1 ; write-back and invalidate L1D line
CLFLUSH A5,B4,A1 ; write-back and invalidate L2 line
LL *B4,B5
NOP 4
ADD B7,B5,B5
SL B5,*B4
CMTL *B4,B1
NOP 4
STW B5,*B4
bus_loop1?:
MVC TSCL,B8
|| [B0] SUB B0,1,B0
SUB B8,B9,B7 ; lastdiff = tick - lasttick
|| MV B8,B9 ; lasttick = tick
CLFLUSH A3,B4,A1 ; write-back and invalidate L1D line
CLFLUSH A5,B4,A1 ; write-back and invalidate L2 line
LL *B4,B5
NOP 4
ADD B7,B5,B5
SL B5,*B4
CMTL *B4,B1
STW B5,*B4 ; [!B1] is removed to flatten samples
|| ADDK 4,B4
|| [B0] BNOP bus_loop1?,5
BNOP RA,5
.endasmfunc
.global _OPENSSL_instrument_bus2
_OPENSSL_instrument_bus2:
.asmfunc
MV A6,B0 ; reassign max
|| MV B4,A6 ; reassing sizeof(output)
|| MVK 0x00004030,A3
MV A4,B4 ; reassign output
|| MVK 0,A4 ; return value
|| MVK 1,A1
|| MVKH 0x01840000,A3 ; L1DWIBAR
MVC TSCL,B8 ; collect 1st tick
|| MVK 0x00004010,A5
MV B8,B9 ; lasttick = tick
|| MVK 0,B7 ; lastdiff = 0
|| MVKH 0x01840000,A5 ; L2WIBAR
CLFLUSH A3,B4,A1 ; write-back and invalidate L1D line
CLFLUSH A5,B4,A1 ; write-back and invalidate L2 line
LL *B4,B5
NOP 4
ADD B7,B5,B5
SL B5,*B4
CMTL *B4,B1
NOP 4
STW B5,*B4
MVC TSCL,B8 ; collect 1st diff
SUB B8,B9,B7 ; lastdiff = tick - lasttick
|| MV B8,B9 ; lasttick = tick
|| SUB B0,1,B0
bus_loop2?:
CLFLUSH A3,B4,A1 ; write-back and invalidate L1D line
CLFLUSH A5,B4,A1 ; write-back and invalidate L2 line
LL *B4,B5
NOP 4
ADD B7,B5,B5
SL B5,*B4
CMTL *B4,B1
STW B5,*B4 ; [!B1] is removed to flatten samples
||[!B0] BNOP bus_loop2_done?,2
|| SUB B0,1,B0
MVC TSCL,B8
SUB B8,B9,B8
|| MV B8,B9
CMPEQ B8,B7,B2
|| MV B8,B7
[!B2] ADDAW B4,1,B4
||[!B2] ADDK 1,A4
CMPEQ A4,A6,A2
[!A2] BNOP bus_loop2?,5
bus_loop2_done?:
BNOP RA,5
.endasmfunc
___
print $code;
close STDOUT;
|
