xref: /openbmc/qemu/tests/tcg/xtensa/test_break.S (revision 235fe6d0)
1#include "macros.inc"
2
3test_suite break
4
5#if XCHAL_HAVE_DEBUG
6
7#define debug_level XCHAL_DEBUGLEVEL
8#define debug_vector glue(level, XCHAL_DEBUGLEVEL)
9#define EPC_DEBUG glue(epc, XCHAL_DEBUGLEVEL)
10
11test break
12    set_vector debug_vector, 0
13    rsil    a2, debug_level
14    _break  0, 0
15
16    set_vector debug_vector, 2f
17    rsil    a2, debug_level - 1
181:
19    _break  0, 0
20    test_fail
212:
22    rsr     a2, ps
23    movi    a3, 0x1f
24    and     a2, a2, a3
25    movi    a3, 0x10 | debug_level
26    assert  eq, a2, a3
27    rsr     a2, EPC_DEBUG
28    movi    a3, 1b
29    assert  eq, a2, a3
30    rsr     a2, debugcause
31    movi    a3, 0x8
32    assert  eq, a2, a3
33test_end
34
35test breakn
36    set_vector debug_vector, 0
37    rsil    a2, debug_level
38    _break.n  0
39
40    set_vector debug_vector, 2f
41    rsil    a2, debug_level - 1
421:
43    _break.n  0
44    test_fail
452:
46    rsr     a2, ps
47    movi    a3, 0x1f
48    and     a2, a2, a3
49    movi    a3, 0x10 | debug_level
50    assert  eq, a2, a3
51    rsr     a2, EPC_DEBUG
52    movi    a3, 1b
53    assert  eq, a2, a3
54    rsr     a2, debugcause
55    movi    a3, 0x10
56    assert  eq, a2, a3
57test_end
58
59#if XCHAL_NUM_IBREAK
60test ibreak
61    set_vector debug_vector, 0
62    rsil    a2, debug_level
63    movi    a2, 1f
64    wsr     a2, ibreaka0
65    movi    a2, 1
66    wsr     a2, ibreakenable
67    isync
681:
69    rsil    a2, debug_level - 1
70    movi    a2, 1f
71    wsr     a2, ibreaka0
72    movi    a2, 0
73    wsr     a2, ibreakenable
74    isync
751:
76    set_vector debug_vector, 2f
77    movi    a2, 1f
78    wsr     a2, ibreaka0
79    movi    a2, 1
80    wsr     a2, ibreakenable
81    isync
821:
83    test_fail
842:
85    rsr     a2, ps
86    movi    a3, 0x1f
87    and     a2, a2, a3
88    movi    a3, 0x10 | debug_level
89    assert  eq, a2, a3
90    rsr     a2, EPC_DEBUG
91    movi    a3, 1b
92    assert  eq, a2, a3
93    rsr     a2, debugcause
94    movi    a3, 0x2
95    assert  eq, a2, a3
96test_end
97
98test ibreak_remove
99    set_vector debug_vector, 3f
100    rsil    a2, debug_level - 1
101    movi    a2, 2f
102    wsr     a2, ibreaka0
103    movi    a3, 1
1041:
105    wsr     a3, ibreakenable
106    isync
1072:
108    beqz    a3, 4f
109    test_fail
1103:
111    assert  eqi, a3, 1
112    rsr     a2, ps
113    movi    a3, 0x1f
114    and     a2, a2, a3
115    movi    a3, 0x10 | debug_level
116    assert  eq, a2, a3
117    rsr     a2, EPC_DEBUG
118    movi    a3, 2b
119    assert  eq, a2, a3
120    rsr     a2, debugcause
121    movi    a3, 0x2
122    assert  eq, a2, a3
123
124    movi    a2, 0x40000
125    wsr     a2, ps
126    isync
127    movi    a3, 0
128    j       1b
1294:
130test_end
131
132test ibreak_priority
133    set_vector debug_vector, 2f
134    rsil    a2, debug_level - 1
135    movi    a2, 1f
136    wsr     a2, ibreaka0
137    movi    a2, 1
138    wsr     a2, ibreakenable
139    isync
1401:
141    break   0, 0
142    test_fail
1432:
144    rsr     a2, debugcause
145    movi    a3, 0x2
146    assert  eq, a2, a3
147test_end
148#endif
149
150test icount
151    set_vector debug_vector, 2f
152    rsil    a2, debug_level - 1
153    movi    a2, -2
154    wsr     a2, icount
155    movi    a2, 1
156    wsr     a2, icountlevel
157    isync
158    rsil    a2, 0
159    nop
1601:
161    break   0, 0
162    test_fail
1632:
164    movi    a2, 0
165    wsr     a2, icountlevel
166    rsr     a2, EPC_DEBUG
167    movi    a3, 1b
168    assert  eq, a2, a3
169    rsr     a2, debugcause
170    movi    a3, 0x1
171    assert  eq, a2, a3
172test_end
173
174.macro check_dbreak dr
175    rsr     a2, EPC_DEBUG
176    movi    a3, 1b
177    assert  eq, a2, a3
178    rsr     a2, debugcause
179    movi    a3, 0x4 | (\dr << 8)
180    assert  eq, a2, a3
181    movi    a2, 0
182    wsr     a2, dbreakc\dr
183.endm
184
185.macro dbreak_test dr, ctl, break, access, op
186    set_vector debug_vector, 2f
187    rsil    a2, debug_level - 1
188    movi    a2, \ctl
189    wsr     a2, dbreakc\dr
190    movi    a2, \break
191    wsr     a2, dbreaka\dr
192    movi    a2, \access
193    isync
1941:
195    \op     a3, a2, 0
196    test_fail
1972:
198    check_dbreak \dr
199    reset_ps
200.endm
201
202#if XCHAL_NUM_DBREAK
203#define DB0 0
204#if XCHAL_NUM_DBREAK > 1
205#define DB1 1
206#else
207#define DB1 0
208#endif
209test dbreak_exact
210    dbreak_test DB0, 0x4000003f, 0xd000007f, 0xd000007f, l8ui
211    dbreak_test DB1, 0x4000003e, 0xd000007e, 0xd000007e, l16ui
212    dbreak_test DB0, 0x4000003c, 0xd000007c, 0xd000007c, l32i
213
214    dbreak_test DB1, 0x8000003f, 0xd000007f, 0xd000007f, s8i
215    dbreak_test DB0, 0x8000003e, 0xd000007e, 0xd000007e, s16i
216    dbreak_test DB1, 0x8000003c, 0xd000007c, 0xd000007c, s32i
217test_end
218
219test DBdbreak_overlap
220    dbreak_test DB0, 0x4000003f, 0xd000007d, 0xd000007c, l16ui
221    dbreak_test DB1, 0x4000003f, 0xd000007d, 0xd000007c, l32i
222
223    dbreak_test DB0, 0x4000003e, 0xd000007e, 0xd000007f, l8ui
224    dbreak_test DB1, 0x4000003e, 0xd000007e, 0xd000007c, l32i
225
226    dbreak_test DB0, 0x4000003c, 0xd000007c, 0xd000007d, l8ui
227    dbreak_test DB1, 0x4000003c, 0xd000007c, 0xd000007c, l16ui
228
229    dbreak_test DB0, 0x40000038, 0xd0000078, 0xd000007b, l8ui
230    dbreak_test DB1, 0x40000038, 0xd0000078, 0xd000007a, l16ui
231    dbreak_test DB0, 0x40000038, 0xd0000078, 0xd000007c, l32i
232
233    dbreak_test DB1, 0x40000030, 0xd0000070, 0xd0000075, l8ui
234    dbreak_test DB0, 0x40000030, 0xd0000070, 0xd0000076, l16ui
235    dbreak_test DB1, 0x40000030, 0xd0000070, 0xd0000078, l32i
236
237    dbreak_test DB0, 0x40000020, 0xd0000060, 0xd000006f, l8ui
238    dbreak_test DB1, 0x40000020, 0xd0000060, 0xd0000070, l16ui
239    dbreak_test DB0, 0x40000020, 0xd0000060, 0xd0000074, l32i
240
241
242    dbreak_test DB0, 0x8000003f, 0xd000007d, 0xd000007c, s16i
243    dbreak_test DB1, 0x8000003f, 0xd000007d, 0xd000007c, s32i
244
245    dbreak_test DB0, 0x8000003e, 0xd000007e, 0xd000007f, s8i
246    dbreak_test DB1, 0x8000003e, 0xd000007e, 0xd000007c, s32i
247
248    dbreak_test DB0, 0x8000003c, 0xd000007c, 0xd000007d, s8i
249    dbreak_test DB1, 0x8000003c, 0xd000007c, 0xd000007c, s16i
250
251    dbreak_test DB0, 0x80000038, 0xd0000078, 0xd000007b, s8i
252    dbreak_test DB1, 0x80000038, 0xd0000078, 0xd000007a, s16i
253    dbreak_test DB0, 0x80000038, 0xd0000078, 0xd000007c, s32i
254
255    dbreak_test DB1, 0x80000030, 0xd0000070, 0xd0000075, s8i
256    dbreak_test DB0, 0x80000030, 0xd0000070, 0xd0000076, s16i
257    dbreak_test DB1, 0x80000030, 0xd0000070, 0xd0000078, s32i
258
259    dbreak_test DB0, 0x80000020, 0xd0000060, 0xd000006f, s8i
260    dbreak_test DB1, 0x80000020, 0xd0000060, 0xd0000070, s16i
261    dbreak_test DB0, 0x80000020, 0xd0000060, 0xd0000074, s32i
262test_end
263
264test DBdbreak_invalid
265    dbreak_test DB0, 0x40000030, 0xd0000071, 0xd0000070, l16ui
266    dbreak_test DB1, 0x40000035, 0xd0000072, 0xd0000070, l32i
267test_end
268#endif
269
270#endif
271
272test_suite_end
273