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46 lines
878 B
46 lines
878 B
#!/bin/bash |
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# SPDX-License-Identifier: GPL-2.0 |
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# |
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# Load kernel module for FPU tests |
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uid=$(id -u) |
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if [ $uid -ne 0 ]; then |
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echo "$0: Must be run as root" |
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exit 1 |
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fi |
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if ! which modprobe > /dev/null 2>&1; then |
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echo "$0: You need modprobe installed" |
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exit 4 |
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fi |
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if ! modinfo test_fpu > /dev/null 2>&1; then |
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echo "$0: You must have the following enabled in your kernel:" |
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echo "CONFIG_TEST_FPU=m" |
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exit 4 |
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fi |
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NR_CPUS=$(getconf _NPROCESSORS_ONLN) |
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if [ ! $NR_CPUS ]; then |
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NR_CPUS=1 |
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fi |
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modprobe test_fpu |
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if [ ! -e /sys/kernel/debug/selftest_helpers/test_fpu ]; then |
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mount -t debugfs none /sys/kernel/debug |
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if [ ! -e /sys/kernel/debug/selftest_helpers/test_fpu ]; then |
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echo "$0: Error mounting debugfs" |
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exit 4 |
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fi |
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fi |
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echo "Running 1000 iterations on all CPUs... " |
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for i in $(seq 1 1000); do |
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for c in $(seq 1 $NR_CPUS); do |
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./test_fpu & |
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done |
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done |
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rmmod test_fpu
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