1 #!/bin/bash
2 # SPDX-License-Identifier: GPL-2.0
3 #
4 # CPU helpers
5
6 # protect against multiple inclusion
7 if [ $FILE_CPU ]; then
8 return 0
9 else
10 FILE_CPU=DONE
11 fi
12
13 source cpufreq.sh
14
15 for_each_cpu()
16 {
17 cpus=$(ls $CPUROOT | grep "cpu[0-9].*")
18 for cpu in $cpus; do
19 $@ $cpu
20 done
21 }
22
23 for_each_non_boot_cpu()
24 {
25 cpus=$(ls $CPUROOT | grep "cpu[1-9].*")
26 for cpu in $cpus; do
27 $@ $cpu
28 done
29 }
30
31 #$1: cpu
32 offline_cpu()
33 {
34 printf "Offline $1\n"
35 echo 0 > $CPUROOT/$1/online
36 }
37
38 #$1: cpu
39 online_cpu()
40 {
41 printf "Online $1\n"
42 echo 1 > $CPUROOT/$1/online
43 }
44
45 #$1: cpu
46 reboot_cpu()
47 {
48 offline_cpu $1
49 online_cpu $1
50 }
51
52 # Reboot CPUs
53 # param: number of times we want to run the loop
54 reboot_cpus()
55 {
56 printf "** Test: Running ${FUNCNAME[0]} for $1 loops **\n\n"
57
58 for i in `seq 1 $1`; do
59 for_each_non_boot_cpu offline_cpu
60 for_each_non_boot_cpu online_cpu
61 printf "\n"
62 done
63
64 printf "\n%s\n\n" "------------------------------------------------"
65 }
66
67 # Prints warning for all CPUs with missing cpufreq directory
68 print_unmanaged_cpus()
69 {
70 for_each_cpu cpu_should_have_cpufreq_directory
71 }
72
73 # Counts CPUs with cpufreq directories
74 count_cpufreq_managed_cpus()
75 {
76 count=0;
77
78 for cpu in `ls $CPUROOT | grep "cpu[0-9].*"`; do
79 if [ -d $CPUROOT/$cpu/cpufreq ]; then
80 let count=count+1;
81 fi
82 done
83
84 echo $count;
85 }
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.