nvidia-patch/patch.sh

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#!/bin/bash
backup_path="/opt/nvidia/libnvidia-encode-backup"
silent_flag=''
rollback_flag=''
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driver_dir='/usr/lib/x86_64-linux-gnu'
print_usage() { printf '
SYNOPSIS
patch.sh [OPTION]...
DESCRIPTION
The patch for libnvidia-encode to increase encoder sessions
-s Silent mode (No output)
-r Rollback to original (Restore lib from backup)
'
}
while getopts 'rs' flag; do
case "${flag}" in
r) rollback_flag='true' ;;
s) silent_flag='true' ;;
*) print_usage
exit 1 ;;
esac
done
if [[ $silent_flag ]]; then
exec 1> /dev/null
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fi
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test -d "$driver_dir" || driver_dir="/usr/lib64" # ..centos
test -d "$driver_dir" || { echo "ERROR: cannot detect driver directory"; exit 1; }
declare -A patch_list=(
["375.39"]='s/\x85\xC0\x89\xC5\x75\x18/\x29\xC0\x89\xC5\x90\x90/g'
["396.24"]='s/\x85\xC0\x89\xC5\x0F\x85\x96\x00\x00\x00/\x29\xC0\x89\xC5\x90\x90\x90\x90\x90\x90/g'
["396.26"]='s/\x85\xC0\x89\xC5\x0F\x85\x96\x00\x00\x00/\x29\xC0\x89\xC5\x90\x90\x90\x90\x90\x90/g'
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["396.37"]='s/\x85\xC0\x89\xC5\x0F\x85\x96\x00\x00\x00/\x29\xC0\x89\xC5\x90\x90\x90\x90\x90\x90/g' #added info from https://github.com/keylase/nvidia-patch/issues/6#issuecomment-406895356
# break nvenc.c:236,layout asm,step-mode,step,break *0x00007fff89f9ba45
# libnvidia-encode.so @ 0x15a45; test->sub, jne->nop-nop-nop-nop-nop-nop
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["396.54"]='s/\x85\xC0\x89\xC5\x0F\x85\x96\x00\x00\x00/\x29\xC0\x89\xC5\x90\x90\x90\x90\x90\x90/g'
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["410.48"]='s/\x85\xC0\x89\xC5\x0F\x85\x96\x00\x00\x00/\x29\xC0\x89\xC5\x90\x90\x90\x90\x90\x90/g'
["410.57"]='s/\x85\xC0\x89\xC5\x0F\x85\x96\x00\x00\x00/\x29\xC0\x89\xC5\x90\x90\x90\x90\x90\x90/g'
["410.73"]='s/\x85\xC0\x89\xC5\x0F\x85\x96\x00\x00\x00/\x29\xC0\x89\xC5\x90\x90\x90\x90\x90\x90/g'
["410.78"]='s/\x85\xC0\x89\xC5\x0F\x85\x96\x00\x00\x00/\x29\xC0\x89\xC5\x90\x90\x90\x90\x90\x90/g'
)
driver_version=$(/usr/bin/nvidia-smi --query-gpu=driver_version --format=csv,noheader,nounits | head -n 1)
if [[ ! $? -eq 0 ]]; then
echo 'Something went wrong. Check nvidia driver'
exit 1;
fi
echo "Detected nvidia driver version: $driver_version"
patch=${patch_list[$driver_version]}
if [[ ! $patch ]]; then
echo "Patch for this ($driver_version) nvidia driver not found." 1>&2
echo "Available patches for: " 1>&2
for drv in "${!patch_list[@]}"; do
echo "$drv" 1>&2
done
exit 1;
fi
if [[ $rollback_flag ]]; then
if [[ -f $backup_path/libnvidia-encode.so.$driver_version ]]; then
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cp -p $backup_path/libnvidia-encode.so.$driver_version \
$driver_dir/libnvidia-encode.so.$driver_version
echo "Restore from backup libnvidia-encode.so.$driver_version"
else
echo "Backup not found. Try to patch first."
exit 1;
fi
else
if [[ ! -f $backup_path/libnvidia-encode.so.$driver_version ]]; then
echo "Attention! Backup not found. Copy current libnvidia-encode to backup."
mkdir -p $backup_path
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cp -p $driver_dir/libnvidia-encode.so.$driver_version \
$backup_path/libnvidia-encode.so.$driver_version
fi
sha1sum $backup_path/libnvidia-encode.so.$driver_version
sed "$patch" $backup_path/libnvidia-encode.so.$driver_version > \
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$driver_dir/libnvidia-encode.so.$driver_version
sha1sum $driver_dir/libnvidia-encode.so.$driver_version
ldconfig
echo "Patched!"
fi