lkml.org 
[lkml]   [2023]   [Mar]   [23]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 4/5] selftests/mm: Configure nr_hugepages for arm64
Date
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.

Cc: Andrew Morton <akpm@linux-foundation.org>
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: linux-mm@kvack.org
Cc: linux-kselftest@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Chaitanya S Prakash <chaitanyas.prakash@arm.com>
---
tools/testing/selftests/mm/run_vmtests.sh | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/tools/testing/selftests/mm/run_vmtests.sh b/tools/testing/selftests/mm/run_vmtests.sh
index eb9823a6959a..7616b3e4a0f0 100644
--- a/tools/testing/selftests/mm/run_vmtests.sh
+++ b/tools/testing/selftests/mm/run_vmtests.sh
@@ -222,8 +222,16 @@ CATEGORY="hugetlb" run_test ./thuge-gen
if [ $VADDR64 -ne 0 ]; then
CATEGORY="hugevm" run_test ./virtual_address_range

- # 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
--
2.30.2
\
 
 \ /
  Last update: 2023-03-27 01:14    [W:0.067 / U:0.448 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site