96 lines
2.9 KiB
Bash
96 lines
2.9 KiB
Bash
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#!/bin/bash
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#
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# Copyright (c) 2017-2019, NVIDIA CORPORATION. All rights reserved.
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#
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# The script applies/reverts PREEMPT RT patches in the kernel source.
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# - executed in "scripts"
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# - usage:
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# rt-patch.sh apply-patches; #for applying
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# rt-patch.sh revert-patches; #for reverting
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any_failure=0
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apply_rt_patches()
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{
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count=$(ls ../arch/arm64/configs/.tmp.tegra*defconfig 2>/dev/null| wc -l)
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if [ $count -gt 0 ]; then
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echo "The PREEMPT RT patches are already applied to the kernel!"
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else
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file_list=`find ../rt-patches -name \*.patch -type f | sort`
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for p in $file_list; do
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# set flag in case of failure and continue
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patch -s -d .. -p1 < $p || any_failure=1
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done
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#make temporary copy of the Automotive defconfig file
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cp ../arch/arm64/configs/tegra_gnu_linux_defconfig\
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../arch/arm64/configs/.tmp.tegra_gnu_linux_defconfig
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./config --file ../arch/arm64/configs/tegra_gnu_linux_defconfig\
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--enable PREEMPT_RT_FULL \
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--disable DEBUG_PREEMPT \
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--disable CPU_IDLE_TEGRA18X \
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--disable CPU_FREQ_TIMES \
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--disable CPU_FREQ_GOV_SCHEDUTIL \
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--disable CPU_FREQ_GOV_INTERACTIVE || any_failure=1
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echo "PREEMPT RT patches successfully applied for Auto!"
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#make temporary copy of the L4T's defconfig file
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cp ../arch/arm64/configs/tegra_defconfig\
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../arch/arm64/configs/.tmp.tegra_defconfig
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./config --file ../arch/arm64/configs/tegra_defconfig\
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--enable PREEMPT_RT_FULL \
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--disable DEBUG_PREEMPT \
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--disable CPU_IDLE_TEGRA18X \
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--disable CPU_FREQ_TIMES \
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--disable CPU_FREQ_GOV_SCHEDUTIL \
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--disable CPU_FREQ_GOV_INTERACTIVE || any_failure=1
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echo "PREEMPT RT patches successfully applied for L4T!"
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fi
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}
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revert_rt_patches()
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{
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count=$(ls ../arch/arm64/configs/.tmp.tegra*defconfig 2>/dev/null| wc -l)
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if [ $count -gt 0 ]; then
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file_list=`find ../rt-patches -name \*.patch -type f | sort -r`
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for p in $file_list; do
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# set flag in case of failure and continue
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patch -s -R -d .. -p1 < $p || any_failure=1
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done
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# CPU_FREQ_GOV_INTERACTIVE need to keep disable for Automotive
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cp ../arch/arm64/configs/.tmp.tegra_gnu_linux_defconfig\
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../arch/arm64/configs/tegra_gnu_linux_defconfig
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rm -rf ../arch/arm64/configs/.tmp.tegra_gnu_linux_defconfig
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cp ../arch/arm64/configs/.tmp.tegra_defconfig\
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../arch/arm64/configs/tegra_defconfig
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rm -rf ../arch/arm64/configs/.tmp.tegra_defconfig
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echo "The PREEMPT RT patches have been successfully reverted!"
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else
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echo "The PREEMPT RT patches are not applied to the kernel!"
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fi
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}
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usage()
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{
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echo Usages:
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echo 1. ${0} apply-patches : Apply RT patches
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echo 2. ${0} revert-patches : Revert RT patches
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any_failure=1
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}
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# script starts from here
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dir_run_from=`dirname ${0}`
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pushd $dir_run_from &>/dev/null
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if [ "$1" == "apply-patches" ]; then
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apply_rt_patches
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elif [ "$1" == "revert-patches" ]; then
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revert_rt_patches
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else
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echo "Wrong argument"
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usage
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fi
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popd &>/dev/null
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exit $any_failure
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