diff options
| author | Chaitanya S Prakash <chaitanyas.prakash@arm.com> | 2023-03-23 13:52:42 +0300 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2023-04-19 02:53:51 +0300 |
| commit | 2f489e2e69463729eefc77da22c163ae63b48b74 (patch) | |
| tree | c8e0935c80336d652fb82f41b0eba666afd8e662 | |
| parent | c2af2a41905efcf662b53f280f8538e5c6bd05f4 (diff) | |
| download | linux-2f489e2e69463729eefc77da22c163ae63b48b74.tar.xz | |
selftests/mm: configure nr_hugepages for arm64
Arm64 has a default hugepage size of 512MB when CONFIG_ARM64_64K_PAGES=y
is enabled. While testing on arm64 platforms having up to 4PB of virtual
address space, a minimum of 6 hugepages were required for all test cases
to pass. Support for this requirement has been added.
Link: https://lkml.kernel.org/r/20230323105243.2807166-5-chaitanyas.prakash@arm.com
Signed-off-by: Chaitanya S Prakash <chaitanyas.prakash@arm.com>
Cc: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
| -rw-r--r-- | tools/testing/selftests/mm/run_vmtests.sh | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/tools/testing/selftests/mm/run_vmtests.sh b/tools/testing/selftests/mm/run_vmtests.sh index 83b59ae2d6f0..83c438a18aa7 100644 --- a/tools/testing/selftests/mm/run_vmtests.sh +++ b/tools/testing/selftests/mm/run_vmtests.sh @@ -236,8 +236,16 @@ if [ $VADDR64 -ne 0 ]; then CATEGORY="hugevm" run_test ./virtual_address_range echo $prev_policy > /proc/sys/vm/overcommit_memory - # virtual address 128TB switch test + # va high address boundary switch test + ARCH_ARM64="arm64" + prev_nr_hugepages=$(cat /proc/sys/vm/nr_hugepages) + if [ "$ARCH" == "$ARCH_ARM64" ]; then + echo 6 > /proc/sys/vm/nr_hugepages + fi CATEGORY="hugevm" run_test ./va_high_addr_switch.sh + if [ "$ARCH" == "$ARCH_ARM64" ]; then + echo $prev_nr_hugepages > /proc/sys/vm/nr_hugepages + fi fi # VADDR64 # vmalloc stability smoke test |