aboutsummaryrefslogtreecommitdiff
path: root/tests/tcg/xtensa/test_interrupt.S
blob: efedc43f6062cb8dc9fd2471ff31744993234862 (plain)
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
#include "macros.inc"

#define LSBIT(v) ((v) & -(v))

#define LEVEL_MASK(x) glue3(XCHAL_INTLEVEL, x, _MASK)
#define LEVEL_SOFT_MASK(x) (LEVEL_MASK(x) & XCHAL_INTTYPE_MASK_SOFTWARE)

#define L1_SOFT_MASK LEVEL_SOFT_MASK(1)
#define L1_SOFT LSBIT(L1_SOFT_MASK)

#if LEVEL_SOFT_MASK(2)
#define HIGH_LEVEL_SOFT_MASK LEVEL_SOFT_MASK(2)
#elif LEVEL_SOFT_MASK(3)
#define HIGH_LEVEL_SOFT_MASK LEVEL_SOFT_MASK(3)
#elif LEVEL_SOFT_MASK(4)
#define HIGH_LEVEL_SOFT_MASK LEVEL_SOFT_MASK(4)
#elif LEVEL_SOFT_MASK(5)
#define HIGH_LEVEL_SOFT_MASK LEVEL_SOFT_MASK(5)
#elif LEVEL_SOFT_MASK(6)
#define HIGH_LEVEL_SOFT_MASK LEVEL_SOFT_MASK(6)
#else
#define HIGH_LEVEL_SOFT_MASK 0
#endif

#define HIGH_LEVEL_SOFT LSBIT(HIGH_LEVEL_SOFT_MASK)

#if LEVEL_SOFT_MASK(2)
#define HIGH_LEVEL_SOFT_LEVEL 2
#elif LEVEL_SOFT_MASK(3)
#define HIGH_LEVEL_SOFT_LEVEL 3
#elif LEVEL_SOFT_MASK(4)
#define HIGH_LEVEL_SOFT_LEVEL 4
#elif LEVEL_SOFT_MASK(5)
#define HIGH_LEVEL_SOFT_LEVEL 5
#elif LEVEL_SOFT_MASK(6)
#define HIGH_LEVEL_SOFT_LEVEL 6
#else
#define HIGH_LEVEL_SOFT_LEVEL 0
#endif

test_suite interrupt

#if XCHAL_HAVE_INTERRUPTS

.macro clear_interrupts
    movi    a2, 0
    wsr     a2, intenable
#if XCHAL_NUM_TIMERS
    wsr     a2, ccompare0
#endif
#if XCHAL_NUM_TIMERS > 1
    wsr     a2, ccompare1
#endif
#if XCHAL_NUM_TIMERS > 2
    wsr     a2, ccompare2
#endif
    esync
    rsr     a2, interrupt
    wsr     a2, intclear

    esync
    rsr     a2, interrupt
    assert  eqi, a2, 0
.endm

.macro check_l1
    rsr     a2, ps
    movi    a3, 0x1f        /* EXCM | INTMASK */
    and     a2, a2, a3
    assert  eqi, a2, 0x10   /* only EXCM is set for level-1 interrupt */
    rsr     a2, exccause
    assert  eqi, a2, 4
.endm

test rsil
    clear_interrupts

    rsr     a2, ps
    rsil    a3, 7
    rsr     a4, ps
    assert  eq, a2, a3
    movi    a2, 0xf
    and     a2, a4, a2
    assert  eqi, a2, 7
    xor     a3, a3, a4
    movi    a2, 0xfffffff0
    and     a2, a3, a2
    assert  eqi, a2, 0
test_end

#if L1_SOFT
test soft_disabled
    set_vector kernel, 1f
    clear_interrupts

    movi    a2, L1_SOFT
    wsr     a2, intset
    esync
    rsr     a3, interrupt
    movi    a4, ~XCHAL_INTTYPE_MASK_TIMER
    and     a3, a3, a4
    assert  eq, a2, a3
    wsr     a2, intclear
    esync
    rsr     a3, interrupt
    and     a3, a3, a4
    assert  eqi, a3, 0
    j       2f
1:
    test_fail
2:
test_end

test soft_intenable
    set_vector kernel, 1f
    clear_interrupts

    movi    a2, L1_SOFT
    wsr     a2, intset
    esync
    rsr     a3, interrupt
    movi    a4, ~XCHAL_INTTYPE_MASK_TIMER
    and     a3, a3, a4
    assert  eq, a2, a3
    rsil    a3, 0
    wsr     a2, intenable
    esync
    test_fail
1:
    check_l1
test_end

test soft_rsil
    set_vector kernel, 1f
    clear_interrupts

    movi    a2, L1_SOFT
    wsr     a2, intset
    esync
    rsr     a3, interrupt
    movi    a4, ~XCHAL_INTTYPE_MASK_TIMER
    and     a3, a3, a4
    assert  eq, a2, a3
    wsr     a2, intenable
    rsil    a3, 0
    esync
    test_fail
1:
    check_l1
test_end

test soft_waiti
    set_vector kernel, 1f
    clear_interrupts

    movi    a2, L1_SOFT
    wsr     a2, intset
    esync
    rsr     a3, interrupt
    movi    a4, ~XCHAL_INTTYPE_MASK_TIMER
    and     a3, a3, a4
    assert  eq, a2, a3
    wsr     a2, intenable
    waiti   0
    test_fail
1:
    check_l1
test_end

test soft_user
    set_vector kernel, 1f
    set_vector user, 2f
    clear_interrupts

    movi    a2, L1_SOFT
    wsr     a2, intset
    esync
    rsr     a3, interrupt
    movi    a4, ~XCHAL_INTTYPE_MASK_TIMER
    and     a3, a3, a4
    assert  eq, a2, a3
    wsr     a2, intenable

    rsr     a2, ps
    movi    a3, 0x20
    or      a2, a2, a3
    wsr     a2, ps
    waiti   0
1:
    test_fail
2:
    check_l1
test_end

#if HIGH_LEVEL_SOFT
test soft_priority
    set_vector kernel, 1f
    set_vector glue(level, HIGH_LEVEL_SOFT_LEVEL), 2f
    clear_interrupts

    movi    a2, L1_SOFT | HIGH_LEVEL_SOFT
    wsr     a2, intenable
    rsil    a3, 0
    esync
    wsr     a2, intset
    esync
1:
    test_fail
2:
    rsr     a2, ps
    movi    a3, 0x1f        /* EXCM | INTMASK */
    and     a2, a2, a3
    movi    a3, 0x10 | HIGH_LEVEL_SOFT_LEVEL
    assert  eq, a2, a3      /* EXCM and INTMASK are set
                               for high-priority interrupt */
test_end
#endif
#endif

#if HIGH_LEVEL_SOFT
test eps_epc_rfi
    set_vector glue(level, HIGH_LEVEL_SOFT_LEVEL), 3f
    clear_interrupts
    reset_ps

    movi    a2, L1_SOFT_MASK | HIGH_LEVEL_SOFT_MASK
    wsr     a2, intenable
    rsil    a3, 0
    rsr     a3, ps
    esync
    wsr     a2, intset
1:
    esync
2:
    test_fail
3:
    rsr     a2, glue(eps, HIGH_LEVEL_SOFT_LEVEL)
    assert  eq, a2, a3
    rsr     a2, glue(epc, HIGH_LEVEL_SOFT_LEVEL)
    movi    a3, 1b
    assert  ge, a2, a3
    movi    a3, 2b
    assert  ge, a3, a2
    movi    a2, 4f
    wsr     a2, glue(epc, HIGH_LEVEL_SOFT_LEVEL)
    movi    a2, 0x40000 | HIGH_LEVEL_SOFT_LEVEL
    wsr     a2, glue(eps, HIGH_LEVEL_SOFT_LEVEL)
    rfi     HIGH_LEVEL_SOFT_LEVEL
    test_fail
4:
    rsr     a2, ps
    movi    a3, 0x40000 | HIGH_LEVEL_SOFT_LEVEL
    assert  eq, a2, a3
test_end
#endif

#endif

test_suite_end