mirror of
https://github.com/keylase/nvidia-patch.git
synced 2024-12-22 12:53:35 +00:00
linux: Add patch-vk which patches libnvidia-eglcore.so for vulkan
This bypasses the limit for vulkan drivers. Whenever an encoder session is created, it will call a function that does "authorization", and then before it exit or when the session is closed, it will "release" it. This happens at the function 0xD7E780 (address in version 555.58.02). The function signature is like this ```C // This is C++, but for `C` translation it will be something like this bool auth_release(void* this, bool is_auth); ``` It will take either `is_auth==true` if in `auth` or `false` when releasing. It will return either `true` for success or `false` for failure. What we changed here is that we replaced this function implementation with `return true;`. And it seems to be working as expected, and we can bypass the limit by not even registering and checking for it. Part of this commit, I checked the other surrounding versions, and they all seem to use the exact same function which is good for us. I actually didn't test any version beside 555.58.02, so it could need some testing. Signed-off-by: Amjad Alsharafi <amjadsharafi10@gmail.com>
This commit is contained in:
Amjad Alsharafi
parent
fafd28f299
commit
f0ba18162e
254
patch-vk.sh
Executable file
254
patch-vk.sh
Executable file
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#!/bin/bash
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# halt on any error for safety and proper pipe handling
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set -euo pipefail ; # <- this semicolon and comment make options apply
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# even when script is corrupt by CRLF line terminators (issue #75)
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# empty line must follow this comment for immediate fail with CRLF newlines
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# root check
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if [ "$(id -u)" -ne 0 ]; then
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echo
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echo -e "Please run as root!"
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echo
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exit 1
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fi
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backup_path="/opt/nvidia/libnvidia-eglcore-backup"
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silent_flag=''
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manual_driver_version=''
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flatpak_flag=''
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backup_suffix=''
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print_usage() { printf '
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SYNOPSIS
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patch-vk.sh [-s] [-r|-h|-c VERSION|-l|-f]
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DESCRIPTION
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The patch for Nvidia vulkan drivers to remove NVENC session limit
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-s Silent mode (No output)
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-r Rollback to original (Restore lib from backup)
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-h Print this help message
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-c VERSION Check if version VERSION supported by this patch.
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Returns true exit code (0) if version is supported.
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-l List supported driver versions
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-d VERSION Use VERSION driver version when looking for libraries
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instead of using nvidia-smi to detect it.
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-j Output the patch list to stdout as JSON
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'
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}
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# shellcheck disable=SC2209
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opmode="patch"
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while getopts 'rshjc:ld:' flag; do
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case "${flag}" in
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r) opmode="${opmode}rollback" ;;
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s) silent_flag='true' ;;
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h) opmode="${opmode}help" ;;
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c) opmode="${opmode}checkversion" ; checked_version="$OPTARG" ;;
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l) opmode="${opmode}listversions" ;;
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d) manual_driver_version="$OPTARG" ;;
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j) opmode="dump" ;;
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*) echo "Incorrect option specified in command line" ; exit 2 ;;
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esac
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done
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if [[ $silent_flag ]]; then
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exec 1> /dev/null
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fi
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if [[ $flatpak_flag ]]; then
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backup_suffix='.flatpak'
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echo "WARNING: Flatpak flag enabled (-f), modifying ONLY the Flatpak driver."
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fi
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declare -A patch_list=(
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["555.42.02"]='s/\x53\x89\xf3\x41\xb9\x04\x00\x00\x00\x48\x83\xec\x10/\x48\xc7\xc0\x01\x00\x00\x00\xc3\xc3\xc3\xc3\xc3\xc3/g'
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["555.58"]='s/\x53\x89\xf3\x41\xb9\x04\x00\x00\x00\x48\x83\xec\x10/\x48\xc7\xc0\x01\x00\x00\x00\xc3\xc3\xc3\xc3\xc3\xc3/g'
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["555.58.02"]='s/\x53\x89\xf3\x41\xb9\x04\x00\x00\x00\x48\x83\xec\x10/\x48\xc7\xc0\x01\x00\x00\x00\xc3\xc3\xc3\xc3\xc3\xc3/g'
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["560.35.03"]='s/\x53\x89\xf3\x41\xb9\x04\x00\x00\x00\x48\x83\xec\x10/\x48\xc7\xc0\x01\x00\x00\x00\xc3\xc3\xc3\xc3\xc3\xc3/g'
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["560.28.03"]='s/\x53\x89\xf3\x41\xb9\x04\x00\x00\x00\x48\x83\xec\x10/\x48\xc7\xc0\x01\x00\x00\x00\xc3\xc3\xc3\xc3\xc3\xc3/g'
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["565.57.01"]='s/\x53\x89\xf3\x41\xb9\x04\x00\x00\x00\x48\x83\xec\x10/\x48\xc7\xc0\x01\x00\x00\x00\xc3\xc3\xc3\xc3\xc3\xc3/g'
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)
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check_version_supported () {
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local ver="$1"
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[[ "${patch_list[$ver]+isset}" ]]
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}
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# get_flatpak_driver_path () {
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# # Flatpak's package versioning replaces '.' by '-'
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# version="$(echo "$1" | tr '.' '-')"
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# # Attempts to patch system flatpak
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# if path=$(flatpak info --show-location "org.freedesktop.Platform.GL.nvidia-${version}" 2>/dev/null); then
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# echo "$path/files/lib"
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# # If it isn't found will login as the user that envoked sudo & patch this version
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# elif path=$(su -c - ${SUDO_USER} 'flatpak info --show-location "org.freedesktop.Platform.GL.nvidia-'${version}'"'); then
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# echo "$path/files/lib"
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# fi
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# }
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get_supported_versions () {
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for drv in "${!patch_list[@]}"; do
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echo "$drv"
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done | sort -t. -n
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return 0
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}
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patch_common () {
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NVIDIA_SMI="$(command -v nvidia-smi || true)"
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if [[ ! "$NVIDIA_SMI" ]] ; then
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echo 'nvidia-smi utility not found. Probably driver is not installed.'
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exit 1
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fi
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if [[ "$manual_driver_version" ]]; then
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driver_version="$manual_driver_version"
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echo "Using manually entered nvidia driver version: $driver_version"
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else
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cmd="$NVIDIA_SMI --query-gpu=driver_version --format=csv,noheader,nounits"
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driver_versions_list=$($cmd) || (
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ret_code=$?
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echo "Can not detect nvidia driver version."
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echo "CMD: \"$cmd\""
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echo "Result: \"$driver_versions_list\""
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echo "nvidia-smi retcode: $ret_code"
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exit 1
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)
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driver_version=$(echo "$driver_versions_list" | head -n 1)
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echo "Detected nvidia driver version: $driver_version"
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fi
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if ! check_version_supported "$driver_version" ; then
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echo "Patch for this ($driver_version) nvidia driver not found."
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echo "Patch is available for versions: "
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get_supported_versions
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exit 1
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fi
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patch="${patch_list[$driver_version]}"
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driver_maj_version=${driver_version%%.*}
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object='libnvidia-eglcore.so'
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echo $object
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# if [[ $flatpak_flag ]]; then
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# driver_dir=$(get_flatpak_driver_path "$driver_version")
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# if [ -z "$driver_dir" ]; then
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# echo "ERROR: Flatpak package for driver $driver_version does not appear to be installed."
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# echo "Try rebooting your computer and/or running 'flatpak update'."
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# exit 1
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# fi
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# # return early because the code below is out of scope for the Flatpak driver
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# return 0
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# fi
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declare -a driver_locations=(
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'/usr/lib/x86_64-linux-gnu'
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'/usr/lib/x86_64-linux-gnu/nvidia/current/'
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'/usr/lib/x86_64-linux-gnu/nvidia/tesla/'
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"/usr/lib/x86_64-linux-gnu/nvidia/tesla-${driver_version%%.*}/"
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'/usr/lib64'
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'/usr/lib'
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"/usr/lib/nvidia-${driver_version%%.*}"
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)
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dir_found=''
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for driver_dir in "${driver_locations[@]}" ; do
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if [[ -e "$driver_dir/$object.$driver_version" ]]; then
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dir_found='true'
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break
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fi
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done
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[[ "$dir_found" ]] || { echo "ERROR: cannot detect driver directory"; exit 1; }
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}
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ensure_bytes_are_valid () {
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driver_file="$driver_dir/$object.$driver_version"
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original_bytes=$(awk -F / '$2 { print $2 }' <<< "$patch")
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patched_bytes=$(awk -F / '$3 { print $3 }' <<< "$patch")
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if LC_ALL=C grep -qaP "$original_bytes" "$driver_file"; then
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printf "Bytes to patch: %s\n" "$original_bytes"
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return 0 # file is ready to be patched
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fi
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if LC_ALL=C grep -qaP "$patched_bytes" "$driver_file"; then
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echo "Warn: Bytes '$patched_bytes' already present in '$driver_file'."
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return 0 # file is likely patched already
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fi
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echo "Error: Could not find bytes '$original_bytes' to patch in '$driver_file'."
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exit 1
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}
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rollback () {
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patch_common
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if [[ -f "$backup_path/$object.$driver_version$backup_suffix" ]]; then
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cp -p "$backup_path/$object.$driver_version$backup_suffix" \
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"$driver_dir/$object.$driver_version"
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echo "Restore from backup $object.$driver_version$backup_suffix"
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else
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echo "Backup not found. Try to patch first."
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exit 1
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fi
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}
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patch () {
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patch_common
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ensure_bytes_are_valid
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if [[ -f "$backup_path/$object.$driver_version$backup_suffix" ]]; then
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bkp_hash="$(sha1sum "$backup_path/$object.$driver_version$backup_suffix" | cut -f1 -d\ )"
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drv_hash="$(sha1sum "$driver_dir/$object.$driver_version" | cut -f1 -d\ )"
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if [[ "$bkp_hash" != "$drv_hash" ]] ; then
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echo "Backup exists and driver file differ from backup. Skipping patch."
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return 0
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fi
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else
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echo "Attention! Backup not found. Copying current $object to backup."
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mkdir -p "$backup_path"
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cp -p "$driver_dir/$object.$driver_version" \
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"$backup_path/$object.$driver_version$backup_suffix"
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fi
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sha1sum "$backup_path/$object.$driver_version$backup_suffix"
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sed "$patch" "$backup_path/$object.$driver_version$backup_suffix" > \
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"${PATCH_OUTPUT_DIR-$driver_dir}/$object.$driver_version"
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sha1sum "${PATCH_OUTPUT_DIR-$driver_dir}/$object.$driver_version"
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ldconfig
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echo "Patched!"
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}
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query_version_support () {
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if check_version_supported "$checked_version" ; then
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echo "SUPPORTED"
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exit 0
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else
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echo "NOT SUPPORTED"
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exit 1
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fi
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}
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list_supported_versions () {
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get_supported_versions
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}
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dump_patches () {
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for i in "${!patch_list[@]}"
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do
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echo "$i"
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echo "${patch_list[$i]}"
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done |
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jq --sort-keys -n -R 'reduce inputs as $i ({}; . + { ($i): (input|(tonumber? // .)) })'
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}
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case "${opmode}" in
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patch) patch ;;
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patchrollback) rollback ;;
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patchhelp) print_usage ; exit 2 ;;
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patchcheckversion) query_version_support ;;
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patchlistversions) list_supported_versions ;;
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dump) dump_patches ;;
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*) echo "Incorrect combination of flags. Use option -h to get help."
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exit 2 ;;
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esac
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