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tests/tcg/xtensa: enable mmu tests for MMUv3 

MMU test suite is disabled for cores that have spanning TLB way, i.e.
for all MMUv3 cores. Instead of disabling it make testing region virtual
addresses explicit and invalidate TLB mappings for entries that conflict
with the test.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
This commit is contained in:
Max Filippov 2022-04-25 20:05:18 -07:00
parent 703cebcfac
commit da60ecd6d8
1 changed files with 103 additions and 79 deletions
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182
tests/tcg/xtensa/test_mmu.S
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@ -2,7 +2,9 @@
test_suite mmu
#if XCHAL_HAVE_PTP_MMU && !XCHAL_HAVE_SPANNING_WAY
#if XCHAL_HAVE_PTP_MMU
#define BASE 0x20000000
#define TLB_BASE 0x80000000
.purgem test_init
@ -29,17 +31,27 @@ test_suite mmu
idtlb a2
movi a2, 0x00000009
idtlb a2
#if XCHAL_HAVE_SPANNING_WAY
movi a2, BASE | XCHAL_SPANNING_WAY
idtlb a2
iitlb a2
movi a2, TLB_BASE | XCHAL_SPANNING_WAY
idtlb a2
iitlb a2
movi a2, TLB_BASE
wsr a2, ptevaddr
#endif
.endm
test tlb_group
movi a2, 0x04000002 /* PPN */
movi a3, 0x01200004 /* VPN */
movi a3, BASE + 0x01200004 /* VPN */
wdtlb a2, a3
witlb a2, a3
movi a3, 0x00200004
rdtlb0 a1, a3
ritlb0 a2, a3
movi a3, 0x01000001
movi a3, BASE + 0x01000001
assert eq, a1, a3
assert eq, a2, a3
movi a3, 0x00200004
@ -48,17 +60,17 @@ test tlb_group
movi a3, 0x04000002
assert eq, a1, a3
assert eq, a2, a3
movi a3, 0x01234567
movi a3, BASE + 0x01234567
pdtlb a1, a3
pitlb a2, a3
movi a3, 0x01234014
movi a3, BASE + 0x01234014
assert eq, a1, a3
movi a3, 0x0123400c
movi a3, BASE + 0x0123400c
assert eq, a2, a3
movi a3, 0x00200004
idtlb a3
iitlb a3
movi a3, 0x01234567
movi a3, BASE + 0x01234567
pdtlb a1, a3
pitlb a2, a3
movi a3, 0x00000010
@ -72,7 +84,7 @@ test_end
test itlb_miss
set_vector kernel, 1f
movi a3, 0x00100000
movi a3, BASE + 0x00100000
jx a3
test_fail
1:
@ -86,7 +98,7 @@ test_end
test dtlb_miss
set_vector kernel, 1f
movi a3, 0x00100000
movi a3, BASE + 0x00100000
l8ui a2, a3, 0
test_fail
1:
@ -116,11 +128,11 @@ test dtlb_multi_hit
set_vector kernel, 1f
movi a2, 0x04000002 /* PPN */
movi a3, 0x01200004 /* VPN */
movi a3, BASE + 0x01200004 /* VPN */
wdtlb a2, a3
movi a3, 0x01200007 /* VPN */
movi a3, BASE + 0x01200007 /* VPN */
wdtlb a2, a3
movi a3, 0x01200000
movi a3, BASE + 0x01200000
pdtlb a2, a3
test_fail
1:
@ -168,15 +180,18 @@ test load_store_privilege
and a3, a3, a1
movi a1, 4
or a3, a3, a1
movi a5, BASE
add a3, a3, a5
witlb a2, a3
movi a3, 10f
movi a1, 0x000fffff
and a1, a3, a1
add a1, a1, a5
movi a2, 0x04000003 /* PPN */
movi a3, 0x01200004 /* VPN */
movi a3, BASE + 0x01200004 /* VPN */
wdtlb a2, a3
movi a3, 0x01200001
movi a3, BASE + 0x01200001
movi a2, 0x4004f
jx a1
10:
@ -192,6 +207,7 @@ test load_store_privilege
movi a3, 1b
movi a1, 0x000fffff
and a3, a3, a1
add a3, a3, a5
assert eq, a2, a3
rsr a2, exccause
movi a3, 26
@ -206,9 +222,9 @@ test cring_load_store_privilege
set_vector double, 2f
movi a2, 0x04000003 /* PPN */
movi a3, 0x01200004 /* VPN */
movi a3, BASE + 0x01200004 /* VPN */
wdtlb a2, a3
movi a3, 0x01200004
movi a3, BASE + 0x01200004
movi a2, 0x4005f /* ring 1 + excm => cring == 0 */
wsr a2, ps
isync
@ -245,10 +261,13 @@ test inst_fetch_prohibited
and a3, a3, a1
movi a1, 4
or a3, a3, a1
movi a5, BASE
add a3, a3, a5
witlb a2, a3
movi a3, 10f
movi a1, 0x000fffff
and a1, a3, a1
add a1, a1, a5
jx a1
.align 4
10:
@ -268,9 +287,9 @@ test load_prohibited
set_vector kernel, 2f
movi a2, 0x0400000c /* PPN */
movi a3, 0x01200004 /* VPN */
movi a3, BASE + 0x01200004 /* VPN */
wdtlb a2, a3
movi a3, 0x01200002
movi a3, BASE + 0x01200002
1:
l8ui a2, a3, 0
test_fail
@ -289,9 +308,9 @@ test store_prohibited
set_vector kernel, 2f
movi a2, 0x04000001 /* PPN */
movi a3, 0x01200004 /* VPN */
movi a3, BASE + 0x01200004 /* VPN */
wdtlb a2, a3
movi a3, 0x01200003
movi a3, BASE + 0x01200003
l8ui a2, a3, 0
1:
s8i a2, a3, 0
@ -311,10 +330,10 @@ test_end
* and DTLB way 7 to cover this PTE, ring=pt_ring, attr=pt_attr
*/
.macro pt_setup pt_ring, pt_attr, pte_ring, vaddr, paddr, pte_attr
movi a2, 0x80000000
movi a2, TLB_BASE
wsr a2, ptevaddr
movi a3, 0x80000007 | (((\vaddr) >> 10) & 0xfffff000) /* way 7 */
movi a3, TLB_BASE | 7 | (((\vaddr) >> 10) & 0xfffff000) /* way 7 */
movi a4, 0x04000003 | ((\pt_ring) << 4) /* PADDR 64M */
wdtlb a4, a3
isync
@ -324,7 +343,7 @@ test_end
add a2, a1, a2
s32i a3, a2, 0
movi a3, 0x80000007 | (((\vaddr) >> 10) & 0xfffff000) /* way 7 */
movi a3, TLB_BASE | 7 | (((\vaddr) >> 10) & 0xfffff000) /* way 7 */
movi a4, 0x04000000 | ((\pt_ring) << 4) | (\pt_attr) /* PADDR 64M */
wdtlb a4, a3
isync
@ -343,10 +362,13 @@ test_end
and a3, a3, a1
movi a1, 4
or a3, a3, a1
movi a5, BASE
add a3, a3, a5
witlb a2, a3
movi a3, 10f
movi a1, 0x000fffff
and a1, a3, a1
add a1, a1, a5
movi a2, 0
wsr a2, excvaddr
@ -396,6 +418,8 @@ test_end
movi a2, (\vaddr)
movi a1, 0xfffff
and a1, a1, a2
movi a5, BASE
add a1, a1, a5
rsr a2, epc1
assert eq, a1, a2
.endm
@ -403,7 +427,7 @@ test_end
test dtlb_autoload
set_vector kernel, 0
pt_setup 0, 3, 1, 0x1000, 0x1000, 3
pt_setup 0, 3, 1, BASE + 0x1000, 0x1000, 3
assert_no_auto_tlb
l8ui a1, a3, 0
@ -418,8 +442,8 @@ test autoload_load_store_privilege
set_vector kernel, 0
set_vector double, 2f
pt_setup 0, 3, 0, 0x2000, 0x2000, 3
movi a3, 0x2004
pt_setup 0, 3, 0, BASE + 0x2000, 0x2000, 3
movi a3, BASE + 0x2004
assert_no_auto_tlb
movi a2, 0x4005f /* ring 1 + excm => cring == 0 */
@ -441,7 +465,7 @@ test_end
test autoload_pte_load_prohibited
set_vector kernel, 2f
pt_setup 0, 3, 0, 0x3000, 0, 0xc
pt_setup 0, 3, 0, BASE + 0x3000, 0, 0xc
assert_no_auto_tlb
1:
l32i a2, a3, 0
@ -458,7 +482,7 @@ test_end
test autoload_pt_load_prohibited
set_vector kernel, 2f
pt_setup 0, 0xc, 0, 0x4000, 0x4000, 3
pt_setup 0, 0xc, 0, BASE + 0x4000, 0x4000, 3
assert_no_auto_tlb
1:
l32i a2, a3, 0
@ -474,8 +498,8 @@ test_end
test autoload_pt_privilege
set_vector kernel, 2f
pt_setup 0, 3, 1, 0x5000, 0, 3
go_ring 1, 0, 0x5001
pt_setup 0, 3, 1, BASE + 0x5000, 0, 3
go_ring 1, 0, BASE + 0x5001
l8ui a2, a3, 0
1:
@ -491,8 +515,8 @@ test_end
test autoload_pte_privilege
set_vector kernel, 2f
pt_setup 0, 3, 0, 0x6000, 0, 3
go_ring 1, 0, 0x6001
pt_setup 0, 3, 0, BASE + 0x6000, 0, 3
go_ring 1, 0, BASE + 0x6001
1:
l8ui a2, a3, 0
syscall
@ -507,9 +531,9 @@ test_end
test autoload_3_level_pt
set_vector kernel, 2f
pt_setup 1, 3, 1, 0x00400000, 0, 3
pt_setup 1, 3, 1, 0x80001000, 0x2000000, 3
go_ring 1, 0, 0x00400001
pt_setup 1, 3, 1, BASE + 0x00400000, 0, 3
pt_setup 1, 3, 1, TLB_BASE + ((BASE + 0x00400000) >> 10), 0x2000000, 3
go_ring 1, 0, BASE + 0x00400001
1:
l8ui a2, a3, 0
syscall
@ -526,14 +550,14 @@ test cross_page_insn
set_vector kernel, 2f
movi a2, 0x04000003 /* PPN */
movi a3, 0x00007000 /* VPN */
movi a3, BASE + 0x00007000 /* VPN */
witlb a2, a3
wdtlb a2, a3
movi a3, 0x00008000 /* VPN */
movi a3, BASE + 0x00008000 /* VPN */
witlb a2, a3
wdtlb a2, a3
movi a2, 0x00007fff
movi a2, BASE + 0x00007fff
movi a3, 20f
movi a4, 21f
sub a4, a4, a3
@ -543,8 +567,8 @@ test cross_page_insn
addi a2, a2, 1
addi a3, a3, 1
1:
movi a2, 0x00007fff
movi a3, 0x00008000
movi a2, BASE + 0x00007fff
movi a3, BASE + 0x00008000
/* DTLB: OK, ITLB: OK */
jx a2
@ -560,20 +584,20 @@ test cross_page_insn
movi a3, 1
assert eq, a2, a3
rsr a2, epc1
movi a3, 0x8002
movi a3, BASE + 0x8002
assert eq, a2, a3
rsr a2, excsave1
movi a3, 0x00007fff
movi a3, BASE + 0x00007fff
assert ne, a2, a3
reset_ps
set_vector kernel, 3f
movi a2, 0x0400000c /* PPN */
movi a3, 0x00008000 /* VPN */
movi a3, BASE + 0x00008000 /* VPN */
wdtlb a2, a3
movi a2, 0x00007fff
movi a3, 0x00008000
movi a2, BASE + 0x00007fff
movi a3, BASE + 0x00008000
/* DTLB: FAIL, ITLB: OK */
jx a2
3:
@ -581,22 +605,22 @@ test cross_page_insn
movi a3, 28
assert eq, a2, a3
rsr a2, epc1
movi a3, 0x7fff
movi a3, BASE + 0x7fff
assert eq, a2, a3
rsr a2, excsave1
movi a3, 0x00007fff
movi a3, BASE + 0x00007fff
assert eq, a2, a3
reset_ps
set_vector kernel, 4f
movi a2, 0x0400000c /* PPN */
movi a3, 0x00008000 /* VPN */
movi a3, BASE + 0x00008000 /* VPN */
witlb a2, a3
movi a2, 0x04000003 /* PPN */
wdtlb a2, a3
movi a2, 0x00007fff
movi a3, 0x00008000
movi a2, BASE + 0x00007fff
movi a3, BASE + 0x00008000
/* DTLB: OK, ITLB: FAIL */
jx a2
4:
@ -604,20 +628,20 @@ test cross_page_insn
movi a3, 20
assert eq, a2, a3
rsr a2, epc1
movi a3, 0x7fff
movi a3, BASE + 0x7fff
assert eq, a2, a3
rsr a2, excsave1
movi a3, 0x00007fff
movi a3, BASE + 0x00007fff
assert eq, a2, a3
reset_ps
set_vector kernel, 5f
movi a2, 0x0400000c /* PPN */
movi a3, 0x00008000 /* VPN */
movi a3, BASE + 0x00008000 /* VPN */
wdtlb a2, a3
movi a2, 0x00007fff
movi a3, 0x00008000
movi a2, BASE + 0x00007fff
movi a3, BASE + 0x00008000
/* DTLB: FAIL, ITLB: FAIL */
jx a2
5:
@ -625,10 +649,10 @@ test cross_page_insn
movi a3, 20
assert eq, a2, a3
rsr a2, epc1
movi a3, 0x7fff
movi a3, BASE + 0x7fff
assert eq, a2, a3
rsr a2, excsave1
movi a3, 0x00007fff
movi a3, BASE + 0x00007fff
assert eq, a2, a3
test_end
@ -636,14 +660,14 @@ test cross_page_tb
set_vector kernel, 2f
movi a2, 0x04000003 /* PPN */
movi a3, 0x00007000 /* VPN */
movi a3, BASE + 0x00007000 /* VPN */
witlb a2, a3
wdtlb a2, a3
movi a3, 0x00008000 /* VPN */
movi a3, BASE + 0x00008000 /* VPN */
witlb a2, a3
wdtlb a2, a3
movi a2, 0x00007ffc
movi a2, BASE + 0x00007ffc
movi a3, 20f
movi a4, 21f
sub a4, a4, a3
@ -653,8 +677,8 @@ test cross_page_tb
addi a2, a2, 1
addi a3, a3, 1
1:
movi a2, 0x00007ffc
movi a3, 0x00008000
movi a2, BASE + 0x00007ffc
movi a3, BASE + 0x00008000
/* DTLB: OK, ITLB: OK */
jx a2
@ -670,20 +694,20 @@ test cross_page_tb
movi a3, 1
assert eq, a2, a3
rsr a2, epc1
movi a3, 0x7fff
movi a3, BASE + 0x7fff
assert eq, a2, a3
rsr a2, excsave1
movi a3, 0x00007ffc
movi a3, BASE + 0x00007ffc
assert ne, a2, a3
reset_ps
set_vector kernel, 3f
movi a2, 0x0400000c /* PPN */
movi a3, 0x00008000 /* VPN */
movi a3, BASE + 0x00008000 /* VPN */
wdtlb a2, a3
movi a2, 0x00007ffc
movi a3, 0x00008000
movi a2, BASE + 0x00007ffc
movi a3, BASE + 0x00008000
/* DTLB: FAIL, ITLB: OK */
jx a2
3:
@ -691,22 +715,22 @@ test cross_page_tb
movi a3, 28
assert eq, a2, a3
rsr a2, epc1
movi a3, 0x7ffc
movi a3, BASE + 0x7ffc
assert eq, a2, a3
rsr a2, excsave1
movi a3, 0x00007ffc
movi a3, BASE + 0x00007ffc
assert eq, a2, a3
reset_ps
set_vector kernel, 4f
movi a2, 0x0400000c /* PPN */
movi a3, 0x00008000 /* VPN */
movi a3, BASE + 0x00008000 /* VPN */
witlb a2, a3
movi a2, 0x04000003 /* PPN */
wdtlb a2, a3
movi a2, 0x00007ffc
movi a3, 0x00008000
movi a2, BASE + 0x00007ffc
movi a3, BASE + 0x00008000
/* DTLB: OK, ITLB: FAIL */
jx a2
4:
@ -714,20 +738,20 @@ test cross_page_tb
movi a3, 20
assert eq, a2, a3
rsr a2, epc1
movi a3, 0x7fff
movi a3, BASE + 0x7fff
assert eq, a2, a3
rsr a2, excsave1
movi a3, 0x00007ffc
movi a3, BASE + 0x00007ffc
assert ne, a2, a3
reset_ps
set_vector kernel, 5f
movi a2, 0x0400000c /* PPN */
movi a3, 0x00008000 /* VPN */
movi a3, BASE + 0x00008000 /* VPN */
wdtlb a2, a3
movi a2, 0x00007ffc
movi a3, 0x00008000
movi a2, BASE + 0x00007ffc
movi a3, BASE + 0x00008000
/* DTLB: FAIL, ITLB: FAIL */
jx a2
5:
@ -735,10 +759,10 @@ test cross_page_tb
movi a3, 28
assert eq, a2, a3
rsr a2, epc1
movi a3, 0x7ffc
movi a3, BASE + 0x7ffc
assert eq, a2, a3
rsr a2, excsave1
movi a3, 0x00007ffc
movi a3, BASE + 0x00007ffc
assert eq, a2, a3
test_end