[CI][L0] Modify files to enable installing L0 from .sh file

devops/scripts/install_drivers.sh

@@ -1,5 +1,4 @@
 #!/bin/bash
-
 set -e
 set -x
 set -o pipefail
@@ -52,8 +51,62 @@ function get_pre_release_igfx() {
     if [ "$GITHUB_TOKEN" != "" ]; then
        HEADER="Authorization: Bearer $GITHUB_TOKEN"
     fi
-    curl -L -H "$HEADER" -H "Accept: application/vnd.github.v3+json" $URL -o $HASH.zip
-    unzip $HASH.zip && rm $HASH.zip
+
+    WORK_DIR="/tmp/igc-download"
+    mkdir -p "$WORK_DIR"
+    cd "$WORK_DIR"
+
+    curl -L -H "$HEADER" -H "Accept: application/vnd.github.v3+json" "$URL" -o "$HASH.zip"
+
+    unzip "$HASH.zip"
+    rm "$HASH.zip"
+
+    # Move deb files back to the calling directory if any exist
+    if ls *.deb 1> /dev/null 2>&1; then
+        mv *.deb /tmp/
+        cd /tmp/
+    fi
+
+    # Clean up work directory
+    rm -rf "$WORK_DIR"
+}
+
+function build_level_zero_from_source() {
+    COMMIT=$1
+
+    apt-get update -qq
+    apt-get install -y build-essential cmake git libc6-dev linux-libc-dev
+
+    BUILD_DIR="/tmp/level-zero-build"
+    INSTALL_DIR="/tmp/level-zero-install"
+    rm -rf $BUILD_DIR $INSTALL_DIR
+    mkdir -p $BUILD_DIR $INSTALL_DIR
+    cd $BUILD_DIR
+
+    git clone https://github.com/oneapi-src/level-zero.git
+
+    cd level-zero
+    git checkout $COMMIT
+
+    mkdir build
+    cd build
+
+    cmake .. \
+      -DCMAKE_BUILD_TYPE=Release \
+      -DCMAKE_INSTALL_PREFIX=/usr/local \
+      -DLEVEL_ZERO_BUILD_TESTS=OFF \
+      -DLEVEL_ZERO_BUILD_SAMPLES=OFF
+
+    make -j$(nproc)
+    make install DESTDIR=$INSTALL_DIR
+
+    cp -r $INSTALL_DIR/usr/local/* /usr/local/
+
+    ldconfig
+
+    rm -rf $BUILD_DIR $INSTALL_DIR
+
+    echo "Level Zero built and installed successfully from commit $COMMIT"
 }
 
 TBB_INSTALLED=false
@@ -96,6 +149,15 @@ CheckIGCdevTag() {
     fi
 }
 
+CheckIfCommitHash() {
+    local arg="$1"
+    if [[ $arg =~ ^[a-f0-9]{40}$ ]]; then
+        echo "Yes"
+    else
+        echo "No"
+    fi
+}
+
 InstallIGFX () {
   echo "Installing Intel Graphics driver..."
   echo "Compute Runtime version $CR_TAG"
@@ -122,10 +184,28 @@ InstallIGFX () {
     | grep ".*deb" \
     | grep -v "u18" \
     | wget -qi -
-  get_release oneapi-src/level-zero $L0_TAG \
-    | grep ".*$UBUNTU_VER.*deb$" \
-    | wget -qi -
-  dpkg -i --force-all *.deb && rm *.deb *.sum
+
+  # Check if L0_TAG is a commit hash or a regular tag
+  IS_L0_COMMIT=$(CheckIfCommitHash $L0_TAG)
+  if [ "$IS_L0_COMMIT" == "Yes" ]; then
+    echo "Level Zero is using commit hash, building from source..."
+    if ! build_level_zero_from_source $L0_TAG; then
+      exit 1
+    fi
+    # Install other packages (Level Zero was already installed from source)
+    if ls *.deb 1> /dev/null 2>&1; then
+      dpkg -i --force-all *.deb && rm *.deb
+    fi
+    if ls *.sum 1> /dev/null 2>&1; then
+      rm *.sum
+    fi
+  else
+    get_release oneapi-src/level-zero $L0_TAG \
+      | grep ".*$UBUNTU_VER.*deb$" \
+      | wget -qi -
+    # Install all packages including Level Zero
+    dpkg -i --force-all *.deb && rm *.deb *.sum
+  fi
   mkdir -p /usr/local/lib/igc/
   echo "$IGC_TAG" > /usr/local/lib/igc/IGCTAG.txt
   if [ "$IS_IGC_DEV" == "Yes" ]; then
@@ -134,22 +214,50 @@ InstallIGFX () {
     # Backup and install it from release igc as a temporarily workaround
     # while we working to resolve the issue.
     echo "Backup libopencl-clang"
-    cp -d /usr/local/lib/libopencl-clang2.so.15*  .
-    echo "Download IGC dev git hash $IGC_DEV_VER"
+
+    # Ensure we're in a writable directory for backup operations
+    BACKUP_DIR="/tmp/igc-backup"
+    mkdir -p "$BACKUP_DIR"
+    cd "$BACKUP_DIR"
+    echo "Working in backup directory: $BACKUP_DIR"
+
+    if ls /usr/local/lib/libopencl-clang2.so.15* 1> /dev/null 2>&1; then
+      cp -d /usr/local/lib/libopencl-clang2.so.15*  .
+      LIBOPENCL_BACKED_UP=true
+      echo "Successfully backed up libopencl-clang files"
+    else
+      echo "Warning: libopencl-clang2.so.15* not found, skipping backup"
+      LIBOPENCL_BACKED_UP=false
+    fi
     get_pre_release_igfx $IGC_DEV_URL $IGC_DEV_VER
     echo "Install IGC dev git hash $IGC_DEV_VER"
     # New dev IGC packaged iga64 conflicting with iga64 from intel-igc-media
     # force overwrite to workaround it first.
-    dpkg -i --force-all *.deb
-    echo "Install libopencl-clang"
-    # Workaround only, will download deb and install with dpkg once fixed.
-    cp -d libopencl-clang2.so.15*  /usr/local/lib/
-    rm /usr/local/lib/libigc.so /usr/local/lib/libigc.so.1* && \
-       ln -s /usr/local/lib/libigc.so.2 /usr/local/lib/libigc.so && \
-       ln -s /usr/local/lib/libigc.so.2 /usr/local/lib/libigc.so.1
+    if ls *.deb 1> /dev/null 2>&1; then
+      dpkg -i --force-all *.deb
+    fi
+    if [ "$LIBOPENCL_BACKED_UP" == "true" ]; then
+      echo "Install libopencl-clang"
+      # Workaround only, will download deb and install with dpkg once fixed.
+      echo "Copying backed up libopencl-clang files from $BACKUP_DIR"
+      cp -d "$BACKUP_DIR"/libopencl-clang2.so.15*  /usr/local/lib/
+    fi
+    if [ -f /usr/local/lib/libigc.so.2 ]; then
+      rm -f /usr/local/lib/libigc.so /usr/local/lib/libigc.so.1* && \
+         ln -s /usr/local/lib/libigc.so.2 /usr/local/lib/libigc.so && \
+         ln -s /usr/local/lib/libigc.so.2 /usr/local/lib/libigc.so.1
+    fi
     echo "Clean up"
-    rm *.deb libopencl-clang2.so.15*
+    if ls *.deb 1> /dev/null 2>&1; then
+      rm *.deb
+    fi
     echo "$IGC_DEV_TAG" > /usr/local/lib/igc/IGCTAG.txt
+
+    # Clean up backup directory (this also removes the backed up libopencl-clang files)
+    if [ -d "$BACKUP_DIR" ]; then
+      echo "Cleaning up backup directory: $BACKUP_DIR"
+      rm -rf "$BACKUP_DIR"
+    fi
   fi
 }
 
@@ -169,6 +277,7 @@ InstallCPURT () {
   if [ -e $INSTALL_LOCATION/oclcpu/install.sh ]; then \
     bash -x $INSTALL_LOCATION/oclcpu/install.sh
   else
+    mkdir -p /etc/OpenCL/vendors
     echo  $INSTALL_LOCATION/oclcpu/x64/libintelocl.so > /etc/OpenCL/vendors/intel_oclcpu.icd
   fi
 }

unified-runtime/cmake/FetchLevelZero.cmake

@@ -12,8 +12,11 @@ find_package(PkgConfig QUIET)
 # LevelZero doesn't install a CMake config target, just PkgConfig,
 # so try using that to find the install and if it's not available
 # just try to search for the path.
-if(PkgConfig_FOUND)
-  pkg_check_modules(level-zero level-zero>=1.24.3)
+string(LENGTH "${UR_LEVEL_ZERO_LOADER_TAG}" TAG_LENGTH)
+string(REGEX MATCH "^[0-9a-fA-F]+$" IS_HEX "${UR_LEVEL_ZERO_LOADER_TAG}")
+
+if(PkgConfig_FOUND AND NOT (TAG_LENGTH EQUAL 40 AND IS_HEX))
+  pkg_check_modules(level-zero level-zero>1.24.3)
   if(level-zero_FOUND)
     set(LEVEL_ZERO_INCLUDE_DIR "${level-zero_INCLUDEDIR}/level_zero")
     set(LEVEL_ZERO_LIBRARY_SRC "${level-zero_LIBDIR}")