xref: /openbmc/qemu/tests/tcg/xtensa/test_interrupt.S (revision a9ded601)
1#include "macros.inc"
2
3#define LSBIT(v) ((v) ^ ((v) & ((v) - 1)))
4
5test_suite interrupt
6
7.macro clear_interrupts
8    movi    a2, 0
9    wsr     a2, intenable
10    wsr     a2, ccompare0
11    wsr     a2, ccompare1
12    wsr     a2, ccompare2
13    esync
14    rsr     a2, interrupt
15    wsr     a2, intclear
16
17    esync
18    rsr     a2, interrupt
19    assert  eqi, a2, 0
20.endm
21
22.macro check_l1
23    rsr     a2, ps
24    movi    a3, 0x1f        /* EXCM | INTMASK */
25    and     a2, a2, a3
26    assert  eqi, a2, 0x10   /* only EXCM is set for level-1 interrupt */
27    rsr     a2, exccause
28    assert  eqi, a2, 4
29.endm
30
31test rsil
32    clear_interrupts
33
34    rsr     a2, ps
35    rsil    a3, 7
36    rsr     a4, ps
37    assert  eq, a2, a3
38    movi    a2, 0xf
39    and     a2, a4, a2
40    assert  eqi, a2, 7
41    xor     a3, a3, a4
42    movi    a2, 0xfffffff0
43    and     a2, a3, a2
44    assert  eqi, a2, 0
45test_end
46
47test soft_disabled
48    set_vector kernel, 1f
49    clear_interrupts
50
51    movi    a2, LSBIT(XCHAL_INTTYPE_MASK_SOFTWARE)
52    wsr     a2, intset
53    esync
54    rsr     a3, interrupt
55    movi    a4, ~XCHAL_INTTYPE_MASK_TIMER
56    and     a3, a3, a4
57    assert  eq, a2, a3
58    wsr     a2, intclear
59    esync
60    rsr     a3, interrupt
61    and     a3, a3, a4
62    assert  eqi, a3, 0
63    j       2f
641:
65    test_fail
662:
67test_end
68
69test soft_intenable
70    set_vector kernel, 1f
71    clear_interrupts
72
73    movi    a2, LSBIT(XCHAL_INTTYPE_MASK_SOFTWARE)
74    wsr     a2, intset
75    esync
76    rsr     a3, interrupt
77    movi    a4, ~XCHAL_INTTYPE_MASK_TIMER
78    and     a3, a3, a4
79    assert  eq, a2, a3
80    rsil    a3, 0
81    wsr     a2, intenable
82    esync
83    test_fail
841:
85    check_l1
86test_end
87
88test soft_rsil
89    set_vector kernel, 1f
90    clear_interrupts
91
92    movi    a2, LSBIT(XCHAL_INTTYPE_MASK_SOFTWARE)
93    wsr     a2, intset
94    esync
95    rsr     a3, interrupt
96    movi    a4, ~XCHAL_INTTYPE_MASK_TIMER
97    and     a3, a3, a4
98    assert  eq, a2, a3
99    wsr     a2, intenable
100    rsil    a3, 0
101    esync
102    test_fail
1031:
104    check_l1
105test_end
106
107test soft_waiti
108    set_vector kernel, 1f
109    clear_interrupts
110
111    movi    a2, LSBIT(XCHAL_INTTYPE_MASK_SOFTWARE)
112    wsr     a2, intset
113    esync
114    rsr     a3, interrupt
115    movi    a4, ~XCHAL_INTTYPE_MASK_TIMER
116    and     a3, a3, a4
117    assert  eq, a2, a3
118    wsr     a2, intenable
119    waiti   0
120    test_fail
1211:
122    check_l1
123test_end
124
125test soft_user
126    set_vector kernel, 1f
127    set_vector user, 2f
128    clear_interrupts
129
130    movi    a2, LSBIT(XCHAL_INTTYPE_MASK_SOFTWARE)
131    wsr     a2, intset
132    esync
133    rsr     a3, interrupt
134    movi    a4, ~XCHAL_INTTYPE_MASK_TIMER
135    and     a3, a3, a4
136    assert  eq, a2, a3
137    wsr     a2, intenable
138
139    rsr     a2, ps
140    movi    a3, 0x20
141    or      a2, a2, a3
142    wsr     a2, ps
143    waiti   0
1441:
145    test_fail
1462:
147    check_l1
148test_end
149
150test soft_priority
151    set_vector kernel, 1f
152    set_vector level3, 2f
153    clear_interrupts
154
155    movi    a2, XCHAL_INTTYPE_MASK_SOFTWARE
156    wsr     a2, intenable
157    rsil    a3, 0
158    esync
159    wsr     a2, intset
160    esync
1611:
162    test_fail
1632:
164    rsr     a2, ps
165    movi    a3, 0x1f        /* EXCM | INTMASK */
166    and     a2, a2, a3
167    movi    a3, 0x13
168    assert  eq, a2, a3      /* EXCM and INTMASK are set
169                               for high-priority interrupt */
170test_end
171
172test eps_epc_rfi
173    set_vector level3, 3f
174    clear_interrupts
175    reset_ps
176
177    movi    a2, XCHAL_INTTYPE_MASK_SOFTWARE
178    wsr     a2, intenable
179    rsil    a3, 0
180    rsr     a3, ps
181    esync
182    wsr     a2, intset
1831:
184    esync
1852:
186    test_fail
1873:
188    rsr     a2, eps3
189    assert  eq, a2, a3
190    rsr     a2, epc3
191    movi    a3, 1b
192    assert  ge, a2, a3
193    movi    a3, 2b
194    assert  ge, a3, a2
195    movi    a2, 4f
196    wsr     a2, epc3
197    movi    a2, 0x40003
198    wsr     a2, eps3
199    rfi     3
200    test_fail
2014:
202    rsr     a2, ps
203    movi    a3, 0x40003
204    assert  eq, a2, a3
205test_end
206
207test_suite_end
208