Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) #!/bin/bash
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) # SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4) SYSFS=
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5) # Kselftest framework requirement - SKIP code is 4.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6) ksft_skip=4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8) prerequisite()
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10) 	msg="skip all tests:"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) 	if [ $UID != 0 ]; then
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) 		echo $msg must be run as root >&2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) 		exit $ksft_skip
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) 	fi
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) 	taskset -p 01 $$
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) 	SYSFS=`mount -t sysfs | head -1 | awk '{ print $3 }'`
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) 	if [ ! -d "$SYSFS" ]; then
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) 		echo $msg sysfs is not mounted >&2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) 		exit $ksft_skip
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) 	fi
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) 	if ! ls $SYSFS/devices/system/cpu/cpu* > /dev/null 2>&1; then
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) 		echo $msg cpu hotplug is not supported >&2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) 		exit $ksft_skip
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) 	fi
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) 	echo "CPU online/offline summary:"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) 	online_cpus=`cat $SYSFS/devices/system/cpu/online`
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) 	online_max=${online_cpus##*-}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) 	if [[ "$online_cpus" = "$online_max" ]]; then
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) 		echo "$msg: since there is only one cpu: $online_cpus"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) 		exit $ksft_skip
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) 	fi
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) 	present_cpus=`cat $SYSFS/devices/system/cpu/present`
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) 	present_max=${present_cpus##*-}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) 	echo "present_cpus = $present_cpus present_max = $present_max"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) 	echo -e "\t Cpus in online state: $online_cpus"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) 	offline_cpus=`cat $SYSFS/devices/system/cpu/offline`
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) 	if [[ "a$offline_cpus" = "a" ]]; then
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) 		offline_cpus=0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) 	else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) 		offline_max=${offline_cpus##*-}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) 	fi
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) 	echo -e "\t Cpus in offline state: $offline_cpus"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) # list all hot-pluggable CPUs
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) hotpluggable_cpus()
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) 	local state=${1:-.\*}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) 	for cpu in $SYSFS/devices/system/cpu/cpu*; do
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) 		if [ -f $cpu/online ] && grep -q $state $cpu/online; then
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) 			echo ${cpu##/*/cpu}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) 		fi
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) 	done
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) hotplaggable_offline_cpus()
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) 	hotpluggable_cpus 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) hotpluggable_online_cpus()
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) 	hotpluggable_cpus 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) cpu_is_online()
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) 	grep -q 1 $SYSFS/devices/system/cpu/cpu$1/online
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) cpu_is_offline()
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) 	grep -q 0 $SYSFS/devices/system/cpu/cpu$1/online
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) online_cpu()
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) 	echo 1 > $SYSFS/devices/system/cpu/cpu$1/online
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) offline_cpu()
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) 	echo 0 > $SYSFS/devices/system/cpu/cpu$1/online
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) online_cpu_expect_success()
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 	local cpu=$1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 	if ! online_cpu $cpu; then
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 		echo $FUNCNAME $cpu: unexpected fail >&2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 		exit 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 	elif ! cpu_is_online $cpu; then
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 		echo $FUNCNAME $cpu: unexpected offline >&2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 		exit 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 	fi
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) online_cpu_expect_fail()
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 	local cpu=$1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 	if online_cpu $cpu 2> /dev/null; then
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 		echo $FUNCNAME $cpu: unexpected success >&2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 		exit 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 	elif ! cpu_is_offline $cpu; then
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 		echo $FUNCNAME $cpu: unexpected online >&2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 		exit 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 	fi
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) offline_cpu_expect_success()
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 	local cpu=$1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) 	if ! offline_cpu $cpu; then
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 		echo $FUNCNAME $cpu: unexpected fail >&2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) 		exit 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 	elif ! cpu_is_offline $cpu; then
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 		echo $FUNCNAME $cpu: unexpected offline >&2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 		exit 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 	fi
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) offline_cpu_expect_fail()
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 	local cpu=$1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 	if offline_cpu $cpu 2> /dev/null; then
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) 		echo $FUNCNAME $cpu: unexpected success >&2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 		exit 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) 	elif ! cpu_is_online $cpu; then
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 		echo $FUNCNAME $cpu: unexpected offline >&2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 		exit 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 	fi
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) error=-12
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) allcpus=0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) priority=0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) online_cpus=0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) online_max=0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) offline_cpus=0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) offline_max=0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) present_cpus=0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) present_max=0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) while getopts e:ahp: opt; do
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 	case $opt in
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 	e)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 		error=$OPTARG
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 		;;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 	a)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 		allcpus=1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 		;;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) 	h)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 		echo "Usage $0 [ -a ] [ -e errno ] [ -p notifier-priority ]"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 		echo -e "\t default offline one cpu"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 		echo -e "\t run with -a option to offline all cpus"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 		exit
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 		;;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 	p)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 		priority=$OPTARG
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 		;;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 	esac
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) done
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) if ! [ "$error" -ge -4095 -a "$error" -lt 0 ]; then
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 	echo "error code must be -4095 <= errno < 0" >&2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) 	exit 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) fi
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) prerequisite
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) # Safe test (default) - offline and online one cpu
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) if [ $allcpus -eq 0 ]; then
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 	echo "Limited scope test: one hotplug cpu"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) 	echo -e "\t (leaves cpu in the original state):"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 	echo -e "\t online to offline to online: cpu $online_max"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) 	offline_cpu_expect_success $online_max
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 	online_cpu_expect_success $online_max
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 	if [[ $offline_cpus -gt 0 ]]; then
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 		echo -e "\t offline to online to offline: cpu $present_max"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 		online_cpu_expect_success $present_max
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 		offline_cpu_expect_success $present_max
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) 		online_cpu $present_max
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) 	fi
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 	exit 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 	echo "Full scope test: all hotplug cpus"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) 	echo -e "\t online all offline cpus"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 	echo -e "\t offline all online cpus"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 	echo -e "\t online all offline cpus"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) fi
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) # Online all hot-pluggable CPUs
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) for cpu in `hotplaggable_offline_cpus`; do
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 	online_cpu_expect_success $cpu
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) done
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) # Offline all hot-pluggable CPUs
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) for cpu in `hotpluggable_online_cpus`; do
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) 	offline_cpu_expect_success $cpu
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) done
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) # Online all hot-pluggable CPUs again
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) for cpu in `hotplaggable_offline_cpus`; do
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) 	online_cpu_expect_success $cpu
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) done
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) # Test with cpu notifier error injection
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) DEBUGFS=`mount -t debugfs | head -1 | awk '{ print $3 }'`
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) NOTIFIER_ERR_INJECT_DIR=$DEBUGFS/notifier-error-inject/cpu
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) prerequisite_extra()
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) 	msg="skip extra tests:"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) 	/sbin/modprobe -q -r cpu-notifier-error-inject
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) 	/sbin/modprobe -q cpu-notifier-error-inject priority=$priority
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) 	if [ ! -d "$DEBUGFS" ]; then
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) 		echo $msg debugfs is not mounted >&2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) 		exit $ksft_skip
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) 	fi
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) 	if [ ! -d $NOTIFIER_ERR_INJECT_DIR ]; then
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) 		echo $msg cpu-notifier-error-inject module is not available >&2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) 		exit $ksft_skip
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) 	fi
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) prerequisite_extra
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) # Offline all hot-pluggable CPUs
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) echo 0 > $NOTIFIER_ERR_INJECT_DIR/actions/CPU_DOWN_PREPARE/error
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) for cpu in `hotpluggable_online_cpus`; do
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) 	offline_cpu_expect_success $cpu
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) done
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) # Test CPU hot-add error handling (offline => online)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) echo $error > $NOTIFIER_ERR_INJECT_DIR/actions/CPU_UP_PREPARE/error
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) for cpu in `hotplaggable_offline_cpus`; do
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) 	online_cpu_expect_fail $cpu
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) done
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) # Online all hot-pluggable CPUs
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) echo 0 > $NOTIFIER_ERR_INJECT_DIR/actions/CPU_UP_PREPARE/error
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) for cpu in `hotplaggable_offline_cpus`; do
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) 	online_cpu_expect_success $cpu
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) done
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) # Test CPU hot-remove error handling (online => offline)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) echo $error > $NOTIFIER_ERR_INJECT_DIR/actions/CPU_DOWN_PREPARE/error
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) for cpu in `hotpluggable_online_cpus`; do
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) 	offline_cpu_expect_fail $cpu
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) done
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) echo 0 > $NOTIFIER_ERR_INJECT_DIR/actions/CPU_DOWN_PREPARE/error
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) /sbin/modprobe -q -r cpu-notifier-error-inject