1#!/bin/bash 2# SPDX-License-Identifier: GPL-2.0 3# 4# Copyright (C) 2018 Uladzislau Rezki (Sony) <urezki@gmail.com> 5# 6# This is a test script for the kernel test driver to analyse vmalloc 7# allocator. Therefore it is just a kernel module loader. You can specify 8# and pass different parameters in order to: 9# a) analyse performance of vmalloc allocations; 10# b) stressing and stability check of vmalloc subsystem. 11 12TEST_NAME="test_hmm" 13DRIVER="test_hmm" 14 15# 1 if fails 16exitcode=1 17 18# Kselftest framework requirement - SKIP code is 4. 19ksft_skip=4 20 21check_test_requirements() 22{ 23 uid=$(id -u) 24 if [ $uid -ne 0 ]; then 25 echo "$0: Must be run as root" 26 exit $ksft_skip 27 fi 28 29 if ! which modprobe > /dev/null 2>&1; then 30 echo "$0: You need modprobe installed" 31 exit $ksft_skip 32 fi 33 34 if ! modinfo $DRIVER > /dev/null 2>&1; then 35 echo "$0: You must have the following enabled in your kernel:" 36 echo "CONFIG_TEST_HMM=m" 37 exit $ksft_skip 38 fi 39} 40 41load_driver() 42{ 43 if [ $# -eq 0 ]; then 44 modprobe $DRIVER > /dev/null 2>&1 45 else 46 if [ $# -eq 2 ]; then 47 modprobe $DRIVER spm_addr_dev0=$1 spm_addr_dev1=$2 48 > /dev/null 2>&1 49 else 50 echo "Missing module parameters. Make sure pass"\ 51 "spm_addr_dev0 and spm_addr_dev1" 52 usage 53 fi 54 fi 55} 56 57unload_driver() 58{ 59 modprobe -r $DRIVER > /dev/null 2>&1 60} 61 62run_smoke() 63{ 64 echo "Running smoke test. Note, this test provides basic coverage." 65 66 load_driver $1 $2 67 $(dirname "${BASH_SOURCE[0]}")/hmm-tests 68 unload_driver 69} 70 71usage() 72{ 73 echo -n "Usage: $0" 74 echo 75 echo "Example usage:" 76 echo 77 echo "# Shows help message" 78 echo "./${TEST_NAME}.sh" 79 echo 80 echo "# Smoke testing" 81 echo "./${TEST_NAME}.sh smoke" 82 echo 83 echo "# Smoke testing with SPM enabled" 84 echo "./${TEST_NAME}.sh smoke <spm_addr_dev0> <spm_addr_dev1>" 85 echo 86 exit 0 87} 88 89function run_test() 90{ 91 if [ $# -eq 0 ]; then 92 usage 93 else 94 if [ "$1" = "smoke" ]; then 95 run_smoke $2 $3 96 else 97 usage 98 fi 99 fi 100} 101 102check_test_requirements 103run_test $@ 104 105exit 0 106