diff options
Diffstat (limited to 'tests/tcg/xtensa/test_mmu.S')
| -rw-r--r-- | tests/tcg/xtensa/test_mmu.S | 221 |
1 files changed, 207 insertions, 14 deletions
diff --git a/tests/tcg/xtensa/test_mmu.S b/tests/tcg/xtensa/test_mmu.S index 52d577421..5d87fbb70 100644 --- a/tests/tcg/xtensa/test_mmu.S +++ b/tests/tcg/xtensa/test_mmu.S @@ -293,26 +293,219 @@ test store_prohibited assert eq, a2, a3 test_end -test dtlb_autoload - set_vector kernel, 0 - - movi a2, 0xd4000000 +/* Set up page table entry vaddr->paddr, ring=pte_ring, attr=pte_attr + * 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 wsr a2, ptevaddr - movi a3, 0x00001013 - s32i a3, a2, 4 + + movi a3, 0x80000007 | (((\vaddr) >> 10) & 0xfffff000) /* way 7 */ + movi a4, 0x04000003 | ((\pt_ring) << 4) /* PADDR 64M */ + wdtlb a4, a3 + isync + + movi a3, ((\paddr) & 0xfffff000) | ((\pte_ring) << 4) | (\pte_attr) + movi a1, ((\vaddr) >> 12) << 2 + add a2, a1, a2 + s32i a3, a2, 0 + + movi a3, 0x80000007 | (((\vaddr) >> 10) & 0xfffff000) /* way 7 */ + movi a4, 0x04000000 | ((\pt_ring) << 4) | (\pt_attr) /* PADDR 64M */ + wdtlb a4, a3 + isync + + movi a3, (\vaddr) +.endm + +/* out: PS.RING=ring, PS.EXCM=excm, a3=vaddr */ +.macro go_ring ring, excm, vaddr + movi a3, 10f + pitlb a3, a3 + ritlb1 a2, a3 + movi a1, 0x10 + or a2, a2, a1 + movi a1, 0x000ff000 + and a3, a3, a1 + movi a1, 4 + or a3, a3, a1 + witlb a2, a3 + movi a3, 10f + movi a1, 0x000fffff + and a1, a3, a1 + + movi a2, 0 + wsr a2, excvaddr + + movi a3, \vaddr + movi a2, 0x4000f | ((\ring) << 6) | ((\excm) << 4) + jx a1 +10: + wsr a2, ps + isync +.endm + +/* in: a3 -- virtual address to test */ +.macro assert_auto_tlb + movi a2, 0x4000f + wsr a2, ps + isync + pdtlb a2, a3 + movi a1, 0xfffff01f + and a2, a2, a1 + movi a1, 0xfffff000 + and a1, a1, a3 + xor a1, a1, a2 + assert gei, a1, 0x10 + movi a2, 0x14 + assert lt, a1, a2 +.endm + +/* in: a3 -- virtual address to test */ +.macro assert_no_auto_tlb + movi a2, 0x4000f + wsr a2, ps + isync pdtlb a2, a3 movi a1, 0x10 and a1, a1, a2 assert eqi, a1, 0 - l8ui a1, a3, 0 - pdtlb a2, a3 - movi a1, 0xfffff010 - and a1, a1, a2 - movi a3, 0x00001010 - assert eq, a1, a3 - movi a1, 0xf +.endm + +.macro assert_sr sr, v + rsr a2, \sr + movi a1, (\v) + assert eq, a1, a2 +.endm + +.macro assert_epc1_1m vaddr + movi a2, (\vaddr) + movi a1, 0xfffff and a1, a1, a2 - assert lti, a1, 4 + rsr a2, epc1 + assert eq, a1, a2 +.endm + +test dtlb_autoload + set_vector kernel, 0 + + pt_setup 0, 3, 1, 0x1000, 0x1000, 3 + assert_no_auto_tlb + + l8ui a1, a3, 0 + + rsr a2, excvaddr + assert eq, a2, a3 + + assert_auto_tlb +test_end + +test autoload_load_store_privilege + set_vector kernel, 0 + set_vector double, 2f + + pt_setup 0, 3, 0, 0x2000, 0x2000, 3 + movi a3, 0x2004 + assert_no_auto_tlb + + movi a2, 0x4005f /* ring 1 + excm => cring == 0 */ + wsr a2, ps + isync +1: + l32e a2, a3, -4 /* ring used */ + test_fail +2: + rsr a2, excvaddr + addi a1, a3, -4 + assert eq, a1, a2 + + assert_auto_tlb + assert_sr depc, 1b + assert_sr exccause, 26 +test_end + +test autoload_pte_load_prohibited + set_vector kernel, 2f + + pt_setup 0, 3, 0, 0x3000, 0, 0xc + assert_no_auto_tlb +1: + l32i a2, a3, 0 + test_fail +2: + rsr a2, excvaddr + assert eq, a2, a3 + + assert_auto_tlb + assert_sr epc1, 1b + assert_sr exccause, 28 +test_end + +test autoload_pt_load_prohibited + set_vector kernel, 2f + + pt_setup 0, 0xc, 0, 0x4000, 0x4000, 3 + assert_no_auto_tlb +1: + l32i a2, a3, 0 + test_fail +2: + rsr a2, excvaddr + assert eq, a2, a3 + + assert_no_auto_tlb + assert_sr epc1, 1b + assert_sr exccause, 24 +test_end + +test autoload_pt_privilege + set_vector kernel, 2f + pt_setup 0, 3, 1, 0x5000, 0, 3 + go_ring 1, 0, 0x5001 + + l8ui a2, a3, 0 +1: + syscall +2: + rsr a2, excvaddr + assert eq, a2, a3 + + assert_auto_tlb + assert_epc1_1m 1b + assert_sr exccause, 1 +test_end + +test autoload_pte_privilege + set_vector kernel, 2f + pt_setup 0, 3, 0, 0x6000, 0, 3 + go_ring 1, 0, 0x6001 +1: + l8ui a2, a3, 0 + syscall +2: + rsr a2, excvaddr + assert eq, a2, a3 + + assert_auto_tlb + assert_epc1_1m 1b + assert_sr exccause, 26 +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 +1: + l8ui a2, a3, 0 + syscall +2: + rsr a2, excvaddr + assert eq, a2, a3 + + assert_no_auto_tlb + assert_epc1_1m 1b + assert_sr exccause, 24 test_end test_suite_end |