Commit fee9f6d1 authored by Ralph Campbell's avatar Ralph Campbell Committed by Jason Gunthorpe
Browse files

mm/hmm/test: add selftests for HMM 

Add some basic stand alone self tests for HMM.
The test program and shell scripts use the test_hmm.ko driver to exercise
HMM functionality in the kernel.

Link: https://lore.kernel.org/r/20200422195028.3684-3-rcampbell@nvidia.com


Signed-off-by: default avatarRalph Campbell <rcampbell@nvidia.com>
Signed-off-by: default avatarJason Gunthorpe <jgg@mellanox.com>
parent b2ef9f5a

tools/testing/selftests/vm/.gitignore

+1 −0
Original line number Diff line number Diff line
@@ -16,3 +16,4 @@ gup_benchmark 
va_128TBswitch

map_fixed_noreplace

write_to_hugetlbfs

hmm-tests

tools/testing/selftests/vm/Makefile

+3 −0
Original line number Diff line number Diff line
@@ -7,6 +7,7 @@ CFLAGS = -Wall -I ../../../../usr/include $(EXTRA_CFLAGS) 
LDLIBS = -lrt

TEST_GEN_FILES = compaction_test

TEST_GEN_FILES += gup_benchmark

TEST_GEN_FILES += hmm-tests

TEST_GEN_FILES += hugepage-mmap

TEST_GEN_FILES += hugepage-shm

TEST_GEN_FILES += map_hugetlb
@@ -33,6 +34,8 @@ TEST_FILES := test_vmalloc.sh 
KSFT_KHDR_INSTALL := 1

include ../lib.mk



$(OUTPUT)/hmm-tests: LDLIBS += -lhugetlbfs -lpthread



$(OUTPUT)/userfaultfd: LDLIBS += -lpthread



$(OUTPUT)/mlock-random-test: LDLIBS += -lcap

tools/testing/selftests/vm/config

+2 −0
Original line number Diff line number Diff line 
CONFIG_SYSVIPC=y

CONFIG_USERFAULTFD=y

CONFIG_TEST_VMALLOC=m

CONFIG_DEVICE_PRIVATE=y

CONFIG_TEST_HMM=m

tools/testing/selftests/vm/hmm-tests.c

0 → 100644
+1359 −0

File added.

Preview size limit exceeded, changes collapsed.

tools/testing/selftests/vm/run_vmtests

+16 −0
Original line number Diff line number Diff line
@@ -307,4 +307,20 @@ else 
	echo "[FAIL]"

	exitcode=1

fi



echo "running HMM smoke test"

echo "------------------------------------"

./test_hmm.sh smoke

ret_val=$?



if [ $ret_val -eq 0 ]; then

	echo "[PASS]"

elif [ $ret_val -eq $ksft_skip ]; then

	echo "[SKIP]"

	exitcode=$ksft_skip

else

	echo "[FAIL]"

	exitcode=1

fi



exit $exitcode

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