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Fixed tlbNAPOT test to run and makefile to gather coverage stats

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This commit is contained in:
David Harris 2023-12-20 21:45:14 -08:00
parent 06ddccd983
commit 9ced88c55c
2 changed files with 7 additions and 3 deletions
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2
sim/Makefile
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@ -17,7 +17,7 @@ all: riscoftests memfiles coveragetests
wally-riscv-arch-test: wallyriscoftests memfiles wally-riscv-arch-test: wallyriscoftests memfiles
coverage: coverage: cov/rv64gc_arch64i.ucdb
#make -C ../tests/coverage --jobs #make -C ../tests/coverage --jobs
#iter-elf.bash --cover --search ../tests/coverage #iter-elf.bash --cover --search ../tests/coverage
vcover merge -out cov/cov.ucdb cov/rv64gc_arch64i.ucdb cov/rv64gc*.ucdb -logfile cov/log vcover merge -out cov/cov.ucdb cov/rv64gc_arch64i.ucdb cov/rv64gc*.ucdb -logfile cov/log

8
tests/coverage/tlbNAPOT.S
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@ -54,6 +54,8 @@ main:
# li t4, 0x1000 # address step size # li t4, 0x1000 # address step size
# li a2, 0x80216000 # Test NAPOT pages # li a2, 0x80216000 # Test NAPOT pages
# jal a1, looptest # jal a1, looptest
li a0, 3 # switch back to machine mode because code at 0x80000000 may not have clean page table entry
ecall
j done j done
looptest: looptest:
@ -62,15 +64,16 @@ looptest:
li t3, 35 # Max amount of Loops = 34 li t3, 35 # Max amount of Loops = 34
li t5, 0x8082 # return instruction opcode li t5, 0x8082 # return instruction opcode
loop: bge t2, t3, looptesti # exit loop if i >= loops loop: bge t2, t3, finished # exit loop if i >= loops
sw t5, 0(t0) # store a return at this address to exercise DTLB sw t5, 0(t0) # store a return at this address to exercise DTLB
lw t1, 0(t0) # read it back lw t1, 0(t0) # read it back
fence.i # synchronize with I$ fence.i # synchronize with I$
jalr ra, t0 # jump to the return statement to exercise the ITLB # jalr ra, t0 # jump to the return statement to exercise the ITLB
add t0, t0, t4 add t0, t0, t4
addi t2, t2, 1 addi t2, t2, 1
j loop j loop
/*
looptesti: looptesti:
mv t0, a2 # base address mv t0, a2 # base address
li t2, 0 # i = 0 li t2, 0 # i = 0
@ -82,6 +85,7 @@ loopi: bge t2, t3, finished # exit loop if i >= loops
add t0, t0, t4 add t0, t0, t4
addi t2, t2, 1 addi t2, t2, 1
j loopi j loopi
*/
finished: finished:
jr a1 jr a1