bf6430f851
This kernel module is used for testing. It's safe to say M here. It can also be built-in without X86_AMD_PSTATE enabled. Currently, only tests for amd-pstate are supported. If X86_AMD_PSTATE is set disabled, it can tell the users test can only run on amd-pstate driver, please set X86_AMD_PSTATE enabled. In the future, comparison tests will be added. It can set amd-pstate disabled and set acpi-cpufreq enabled to run test cases, then compare the test results. Suggested-by: Shuah Khan <skhan@linuxfoundation.org> Signed-off-by: Meng Li <li.meng@amd.com> Acked-by: Huang Rui <ray.huang@amd.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
57 lines
1.8 KiB
Bash
Executable File
57 lines
1.8 KiB
Bash
Executable File
#!/bin/sh
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# SPDX-License-Identifier: GPL-2.0
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# amd-pstate-ut is a test module for testing the amd-pstate driver.
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# It can only run on x86 architectures and current cpufreq driver
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# must be amd-pstate.
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# (1) It can help all users to verify their processor support
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# (SBIOS/Firmware or Hardware).
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# (2) Kernel can have a basic function test to avoid the kernel
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# regression during the update.
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# (3) We can introduce more functional or performance tests to align
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# the result together, it will benefit power and performance scale optimization.
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# Kselftest framework requirement - SKIP code is 4.
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ksft_skip=4
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# amd-pstate-ut only run on x86/x86_64 AMD systems.
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ARCH=$(uname -m 2>/dev/null | sed -e 's/i.86/x86/' -e 's/x86_64/x86/')
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VENDOR=$(cat /proc/cpuinfo | grep -m 1 'vendor_id' | awk '{print $NF}')
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if ! echo "$ARCH" | grep -q x86; then
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echo "$0 # Skipped: Test can only run on x86 architectures."
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exit $ksft_skip
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fi
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if ! echo "$VENDOR" | grep -iq amd; then
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echo "$0 # Skipped: Test can only run on AMD CPU."
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echo "$0 # Current cpu vendor is $VENDOR."
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exit $ksft_skip
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fi
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scaling_driver=$(cat /sys/devices/system/cpu/cpufreq/policy0/scaling_driver)
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if [ "$scaling_driver" != "amd-pstate" ]; then
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echo "$0 # Skipped: Test can only run on amd-pstate driver."
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echo "$0 # Please set X86_AMD_PSTATE enabled."
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echo "$0 # Current cpufreq scaling drvier is $scaling_driver."
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exit $ksft_skip
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fi
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msg="Skip all tests:"
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if [ ! -w /dev ]; then
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echo $msg please run this as root >&2
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exit $ksft_skip
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fi
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if ! /sbin/modprobe -q -n amd-pstate-ut; then
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echo "amd-pstate-ut: module amd-pstate-ut is not found [SKIP]"
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exit $ksft_skip
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fi
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if /sbin/modprobe -q amd-pstate-ut; then
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/sbin/modprobe -q -r amd-pstate-ut
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echo "amd-pstate-ut: ok"
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else
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echo "amd-pstate-ut: [FAIL]"
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exit 1
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fi
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