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
|
#include "macros.inc"
test_suite windowed
.altmacro
.macro reset_window start
movi a2, 0xff
wsr a2, windowstart
rsync
movi a2, 0
wsr a2, windowbase
rsync
movi a2, \start
wsr a2, windowstart
rsync
.endm
.macro overflow_test shift, window, probe_ok, probe_ex
set_vector window_overflow_4, 0
set_vector window_overflow_8, 0
set_vector window_overflow_12, 0
movi a2, 1 | (((1 << ((\window) / 4)) | 1) << ((\shift) / 4))
wsr a2, windowstart
reset_ps
mov a2, a\probe_ok
set_vector window_overflow_\window, 10f
1:
mov a2, a\probe_ex
test_fail
10:
rsr a2, epc1
movi a3, 1b
assert eq, a2, a3
movi a2, 2f
wsr a2, epc1
rsr a2, windowbase
movi a3, (\shift) / 4
assert eq, a2, a3
rsr a2, ps
movi a3, 0x4001f
assert eq, a2, a3
rfwo
test_fail
2:
rsr a2, windowbase
assert eqi, a2, 0
rsr a2, windowstart
movi a3, 1 | ((1 << ((\window) / 4)) << ((\shift) / 4))
assert eq, a2, a3
rsr a2, ps
movi a3, 0x4000f
assert eq, a2, a3
.endm
.macro overflow_tests shift, window, probe
.if \probe < 15
overflow_test \shift, \window, %((\shift) - 1), \probe
overflow_tests \shift, \window, %((\probe) + 1)
.endif
.endm
.macro all_overflow_tests
.irp shift, 4, 8, 12
.irp window, 4, 8, 12
overflow_tests \shift, \window, \shift
.endr
.endr
.endm
test overflow
all_overflow_tests
test_end
.macro underflow_test window
set_vector window_underflow_4, 0
set_vector window_underflow_8, 0
set_vector window_underflow_12, 0
set_vector window_underflow_\window, 10f
reset_window 1
reset_ps
ssai 2
movi a2, 2f
slli a2, a2, 2
movi a3, (\window) / 4
src a0, a3, a2
1:
retw
test_fail
10:
rsr a2, epc1
movi a3, 1b
assert eq, a2, a3
movi a2, 2f
wsr a2, epc1
rsr a2, ps
movi a3, 0x4001f
assert eq, a2, a3
rsr a2, windowbase
assert eqi, a2, 8 - ((\window) / 4)
rsr a2, windowstart
assert eqi, a2, 1
rfwu
2:
rsr a2, ps
movi a3, 0x4000f
assert eq, a2, a3
rsr a2, windowbase
assert eqi, a2, 0
rsr a2, windowstart
assert bsi, a2, 0
assert bsi, a2, 8 - ((\window) / 4)
.endm
test underflow
set_vector window_overflow_4, 0
set_vector window_overflow_8, 0
set_vector window_overflow_12, 0
underflow_test 4
underflow_test 8
underflow_test 12
test_end
.macro retw_test window
reset_window %(1 | (1 << (8 - (\window) / 4)))
reset_ps
ssai 2
movi a2, 1f
slli a2, a2, 2
movi a3, (\window) / 4
src a0, a3, a2
retw
test_fail
1:
rsr a2, ps
movi a3, 0x4000f
assert eq, a2, a3
rsr a2, windowbase
assert eqi, a2, 8 - ((\window) / 4)
rsr a2, windowstart
assert bci, a2, 0
assert bsi, a2, 8 - ((\window) / 4)
.endm
test retw
set_vector window_underflow_4, 0
set_vector window_underflow_8, 0
set_vector window_underflow_12, 0
retw_test 4
retw_test 8
retw_test 12
test_end
test movsp
set_vector kernel, 2f
reset_window 1
reset_ps
1:
movsp a2, a3
test_fail
2:
rsr a2, exccause
assert eqi, a2, 5
rsr a2, epc1
movi a3, 1b
assert eq, a2, a3
set_vector kernel, 0
reset_window 0x81
reset_ps
movsp a2, a3
test_end
test rotw
reset_window 0x4b
reset_ps
movi a3, 0x10
rotw 1
rsr a2, windowbase
assert eqi, a2, 1
movi a3, 0x11
movi a7, 0x12
rotw 2
rsr a2, windowbase
assert eqi, a2, 3
movi a3, 0x13
movi a7, 0x14
movi a11, 0x15
rotw 3
rsr a2, windowbase
assert eqi, a2, 6
movi a3, 0x16
movi a7, 0x17
movi a2, 0x44
wsr a2, windowstart
rsync
movi a2, 0x10
assert eq, a2, a11
movi a11, 0x18
movi a2, 0x11
assert eq, a2, a15
movi a15, 0x19
rotw 4
movi a2, 0x12
assert eq, a2, a3
movi a2, 0x13
assert eq, a2, a7
movi a2, 0x14
assert eq, a2, a11
movi a2, 0x15
assert eq, a2, a15
movi a2, 0x5
wsr a2, windowstart
rsync
rotw -2
movi a2, 0x18
assert eq, a2, a3
movi a2, 0x19
assert eq, a2, a7
test_end
.macro callw_test window
call\window 2f
1:
test_fail
.align 4
2:
rsr a2, windowbase
assert eqi, a2, 0
rsr a2, ps
movi a3, 0x4000f | ((\window) << 14)
assert eq, a2, a3
movi a2, 1b
slli a2, a2, 2
ssai 2
movi a3, (\window) / 4
src a2, a3, a2
assert eq, a2, a\window
.endm
test callw
reset_window 0x1
reset_ps
callw_test 4
callw_test 8
callw_test 12
test_end
.macro entry_test window
reset_window 0x1
reset_ps
movi a2, 0x4000f | ((\window) << 14)
wsr a2, ps
isync
movi a3, 0x12345678
j 1f
.align 4
1:
entry a3, 0x5678
movi a2, 0x12340000
assert eq, a2, a3
rsr a2, windowbase
assert eqi, a2, (\window) / 4
rsr a2, windowstart
movi a3, 1 | (1 << ((\window) / 4))
assert eq, a2, a3
rotw -(\window) / 4
.endm
test entry
entry_test 4
entry_test 8
entry_test 12
test_end
.macro entry_overflow_test window, free, next_window
set_vector window_overflow_4, 0
set_vector window_overflow_8, 0
set_vector window_overflow_12, 0
set_vector window_overflow_\next_window, 10f
movi a2, \window
movi a2, \free
movi a2, \next_window
reset_window %(1 | ((1 | (1 << ((\next_window) / 4))) << ((\free) / 4)))
reset_ps
movi a2, 0x4000f | ((\window) << 14)
wsr a2, ps
isync
movi a3, 0x12345678
j 1f
.align 4
1:
entry a3, 0x5678
test_fail
.align 4
10:
rsr a2, epc1
movi a3, 1b
assert eq, a2, a3
movi a2, 2f
wsr a2, epc1
rsr a2, windowbase
movi a3, (\free) / 4
assert eq, a2, a3
rfwo
2:
.endm
.macro all_entry_overflow_tests
.irp window, 4, 8, 12
.irp next_window, 4, 8, 12
.irp free, 4, 8, 12
.if \free <= \window
entry_overflow_test \window, \free, \next_window
.endif
.endr
.endr
.endr
.endm
test entry_overflow
all_entry_overflow_tests
test_end
test_suite_end
|
