reproduce (this is a W=1 build):
        # https://github.com/vsyrjala/linux/commit/03377854bbe51bfb4501ffb15cccc6b45ac74764
        git remote add vsyrjala https://github.com/vsyrjala/linux.git
        git fetch --no-tags vsyrjala remap_tile_ys_64
        git checkout 03377854bbe51bfb4501ffb15cccc6b45ac74764

        git clone https://github.com/intel/lkp-tests.git ~/lkp-tests

        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang-20 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=i386 olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang-20 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=i386 SHELL=/bin/bash drivers/gpu/drm/i915/