diff options
| author | Max Filippov <jcmvbkbc@gmail.com> | 2014-02-11 12:22:19 +0400 |
|---|---|---|
| committer | Max Filippov <jcmvbkbc@gmail.com> | 2014-02-24 04:47:02 +0400 |
| commit | 2c09eee112677c64a5e060eb9d491981843d7531 (patch) | |
| tree | 7c3d6784b2194af380dc3331fafdc6c1dc3eb343 | |
| parent | a2e67072b7c3b2abf70d0a11918723a5dd841a05 (diff) | |
target-xtensa: add basic tests for cache opcodes
Test that non-locking prefetch operations don't cause exceptions on
missing TLB and that other 'hit' cache operations do.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
| -rw-r--r-- | tests/tcg/xtensa/Makefile | 1 | ||||
| -rw-r--r-- | tests/tcg/xtensa/test_cache.S | 97 |
2 files changed, 98 insertions, 0 deletions
diff --git a/tests/tcg/xtensa/Makefile b/tests/tcg/xtensa/Makefile index 38f23b19a7..a70c92be7e 100644 --- a/tests/tcg/xtensa/Makefile +++ b/tests/tcg/xtensa/Makefile @@ -30,6 +30,7 @@ TESTCASES += test_bi.tst #TESTCASES += test_boolean.tst TESTCASES += test_break.tst TESTCASES += test_bz.tst +TESTCASES += test_cache.tst TESTCASES += test_clamps.tst TESTCASES += test_extui.tst TESTCASES += test_fail.tst diff --git a/tests/tcg/xtensa/test_cache.S b/tests/tcg/xtensa/test_cache.S new file mode 100644 index 0000000000..6b2df9734b --- /dev/null +++ b/tests/tcg/xtensa/test_cache.S @@ -0,0 +1,97 @@ +#include "macros.inc" + +.purgem test_init +.macro test_init + call0 cache_unlock_invalidate +.endm + +test_suite cache + +.macro pf_op op + \op a2, 0 + \op a3, 0 + \op a4, 0 +.endm + +test prefetch + movi a2, 0xd0000000 /* cacheable */ + movi a3, 0xd8000000 /* non-cacheable */ + movi a4, 0x00001235 /* unmapped */ + + pf_op dpfr + pf_op dpfro + pf_op dpfw + pf_op dpfwo + pf_op ipf + + dpfl a2, 0 + ipfl a2, 0 +test_end + +.macro cache_fault op, addr, exc_code + set_vector kernel, 2f + + movi a4, \addr +1: + \op a4, 0 + test_fail +2: + rsr a2, epc1 + movi a3, 1b + assert eq, a2, a3 + rsr a2, excvaddr + assert eq, a2, a4 + rsr a2, exccause + movi a3, \exc_code + assert eq, a2, a3 +.endm + +test dpfl_tlb_miss + cache_fault dpfl, 0x00002345, 24 +test_end + +test dhwb_tlb_miss + cache_fault dhwb, 0x00002345, 24 +test_end + +test dhwbi_tlb_miss + cache_fault dhwbi, 0x00002345, 24 +test_end + +test dhi_tlb_miss + cache_fault dhi, 0x00002345, 24 +test_end + +test dhu_tlb_miss + cache_fault dhu, 0x00002345, 24 +test_end + + +test ipfl_tlb_miss + cache_fault ipfl, 0x00002345, 16 +test_end + +test ihu_tlb_miss + cache_fault ihu, 0x00002345, 16 +test_end + +test ihi_tlb_miss + cache_fault ihi, 0x00002345, 16 +test_end + +test_suite_end + +.macro cache_all op1, op2, size, linesize + movi a2, 0 + movi a3, \size +1: + \op1 a2, 0 + \op2 a2, 0 + addi a2, a2, \linesize + bltu a2, a3, 1b +.endm + +cache_unlock_invalidate: + cache_all diu, dii, XCHAL_DCACHE_SIZE, XCHAL_DCACHE_LINESIZE + cache_all iiu, iii, XCHAL_ICACHE_SIZE, XCHAL_ICACHE_LINESIZE + ret |