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Diffstat (limited to 'tests/xtensa/test_pipeline.S')
| -rw-r--r-- | tests/xtensa/test_pipeline.S | 157 |
1 files changed, 157 insertions, 0 deletions
diff --git a/tests/xtensa/test_pipeline.S b/tests/xtensa/test_pipeline.S new file mode 100644 index 0000000000..6be6085fc3 --- /dev/null +++ b/tests/xtensa/test_pipeline.S @@ -0,0 +1,157 @@ +.include "macros.inc" + +.purgem test +.macro test name + movi a2, 1f + movi a3, 99f +0: + ipf a2, 0 + ipf a2, 4 + ipf a2, 8 + ipf a2, 12 + addi a2, a2, 16 + blt a2, a3, 0b + j 1f + .align 4 +1: +.endm + +test_suite pipeline + +test register_no_stall + rsr a3, ccount + add a5, a6, a6 + add a6, a5, a5 + rsr a4, ccount + sub a3, a4, a3 + assert eqi, a3, 3 +test_end + +test register_stall + l32i a5, a1, 0 /* data cache preload */ + nop + rsr a3, ccount + l32i a5, a1, 0 + add a6, a5, a5 /* M-to-E interlock */ + rsr a4, ccount + sub a3, a4, a3 + assert eqi, a3, 4 +test_end + +test j0_stall + rsr a3, ccount + j 1f /* E + 2-cycle penalty */ +1: + rsr a4, ccount /* E */ + sub a3, a4, a3 + assert eqi, a3, 4 +test_end + +test j1_stall + rsr a3, ccount + j 1f + nop +1: + rsr a4, ccount + sub a3, a4, a3 + assert eqi, a3, 4 +test_end + +test j5_stall + rsr a3, ccount + j 1f + nop + nop + nop + nop + nop +1: + rsr a4, ccount + sub a3, a4, a3 + assert eqi, a3, 4 +test_end + +test b_no_stall + movi a5, 1 + rsr a3, ccount + beqi a5, 2, 1f + rsr a4, ccount + sub a3, a4, a3 + assert eqi, a3, 2 +1: +test_end + +test b1_stall + movi a5, 1 + rsr a3, ccount + beqi a5, 1, 1f + nop +1: + rsr a4, ccount + sub a3, a4, a3 + assert eqi, a3, 4 +test_end + +test b5_stall + movi a5, 1 + rsr a3, ccount + beqi a5, 1, 1f + nop + nop + nop + nop + nop +1: + rsr a4, ccount + sub a3, a4, a3 + assert eqi, a3, 4 +test_end + +/* PS *SYNC */ + +test ps_dsync + rsr a5, ps + isync + rsr a3, ccount + wsr a5, ps + dsync + rsr a4, ccount + sub a3, a4, a3 + assert eqi, a3, 5 +test_end + +test ps_esync + rsr a5, ps + isync + rsr a3, ccount + wsr a5, ps + esync + rsr a4, ccount + sub a3, a4, a3 + assert eqi, a3, 5 +test_end + +test ps_rsync + rsr a5, ps + isync + rsr a3, ccount + wsr a5, ps + rsync + rsr a4, ccount + sub a3, a4, a3 + assert eqi, a3, 5 +test_end + +test ps_isync + rsr a5, ps + isync + rsr a3, ccount + wsr a5, ps + isync + rsr a4, ccount + sub a3, a4, a3 + movi a4, 9 + assert eq, a3, a4 +test_end + +test_suite_end |