The patch titled
Subject: selftests/mm: configure nr_hugepages for arm64
has been added to the -mm mm-unstable branch. Its filename is
selftests-mm-configure-nr_hugepages-for-arm64.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/selftests-mm-configure-nr_hugepages-for-arm64.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: Chaitanya S Prakash <chaitanyas.prakash@xxxxxxx>
Subject: selftests/mm: configure nr_hugepages for arm64
Date: Thu, 23 Mar 2023 16:22:42 +0530
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@xxxxxxx
Signed-off-by: Chaitanya S Prakash <chaitanyas.prakash@xxxxxxx>
Cc: Aneesh Kumar K.V <aneesh.kumar@xxxxxxxxxxxxx>
Cc: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx>
Cc: Shuah Khan <shuah@xxxxxxxxxx>
Cc: Mark Rutland <mark.rutland@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
tools/testing/selftests/mm/run_vmtests.sh | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)
--- a/tools/testing/selftests/mm/run_vmtests.sh~selftests-mm-configure-nr_hugepages-for-arm64
+++ a/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
_
Patches currently in -mm which might be from chaitanyas.prakash@xxxxxxx are
selftests-mm-add-support-for-arm64-platform-on-va-switch.patch
selftests-mm-rename-va_128tbswitch-to-va_high_addr_switch.patch
selftests-mm-add-platform-independent-in-code-comments.patch
selftests-mm-configure-nr_hugepages-for-arm64.patch
selftests-mm-run-hugetlb-testcases-of-va-switch.patch
