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
12 TEST_NAME="test_hmm"
13 DRIVER="test_hmm"
14
15 # 1 if fails
16 exitcode=1
17
18 # Kselftest framework requirement - SKIP code is 4.
19 ksft_skip=4
20
21 check_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
41 load_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
57 unload_driver()
58 {
59 modprobe -r $DRIVER > /dev/null 2>&1
60 }
61
62 run_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
71 usage()
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
89 function 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
102 check_test_requirements
103 run_test $@
104
105 exit 0
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