xref: /openbmc/qemu/tests/tcg/xtensa/test_cache.S (revision e2d05011)
1#include "macros.inc"
2
3.purgem test_init
4.macro test_init
5    call0   cache_unlock_invalidate
6.endm
7
8test_suite cache
9
10.macro      pf_op op
11    \op     a2, 0
12    \op     a3, 0
13    \op     a4, 0
14.endm
15
16test prefetch
17    movi    a2, 0xd0000000 /* cacheable */
18    movi    a3, 0xd8000000 /* non-cacheable */
19    movi    a4, 0x00001235 /* unmapped */
20
21    pf_op   dpfr
22    pf_op   dpfro
23    pf_op   dpfw
24    pf_op   dpfwo
25    pf_op   ipf
26
27    dpfl    a2, 0
28    ipfl    a2, 0
29test_end
30
31.macro cache_fault op, addr, exc_code
32    set_vector kernel, 2f
33
34    movi    a4, \addr
351:
36    \op     a4, 0
37    test_fail
382:
39    rsr     a2, epc1
40    movi    a3, 1b
41    assert  eq, a2, a3
42    rsr     a2, excvaddr
43    assert  eq, a2, a4
44    rsr     a2, exccause
45    movi    a3, \exc_code
46    assert  eq, a2, a3
47.endm
48
49test dpfl_tlb_miss
50    cache_fault dpfl, 0x00002345, 24
51test_end
52
53test dhwb_tlb_miss
54    cache_fault dhwb, 0x00002345, 24
55test_end
56
57test dhwbi_tlb_miss
58    cache_fault dhwbi, 0x00002345, 24
59test_end
60
61test dhi_tlb_miss
62    cache_fault dhi, 0x00002345, 24
63test_end
64
65test dhu_tlb_miss
66    cache_fault dhu, 0x00002345, 24
67test_end
68
69
70test ipfl_tlb_miss
71    cache_fault ipfl, 0x00002345, 16
72test_end
73
74test ihu_tlb_miss
75    cache_fault ihu, 0x00002345, 16
76test_end
77
78test ihi_tlb_miss
79    cache_fault ihi, 0x00002345, 16
80test_end
81
82test_suite_end
83
84.macro cache_all op1, op2, size, linesize
85    movi    a2, 0
86    movi    a3, \size
871:
88    \op1    a2, 0
89    \op2    a2, 0
90    addi    a2, a2, \linesize
91    bltu    a2, a3, 1b
92.endm
93
94cache_unlock_invalidate:
95    cache_all diu, dii, XCHAL_DCACHE_SIZE, XCHAL_DCACHE_LINESIZE
96    cache_all iiu, iii, XCHAL_ICACHE_SIZE, XCHAL_ICACHE_LINESIZE
97    ret
98