[PATCH v11 1/6] drm: Add arch arm64 for drm_clflush_virt_range

[kernel test robot]

Hi Michael,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on drm-tip/drm-tip]
[also build test ERROR on drm/drm-next]
[cannot apply to drm-intel/for-linux-next v5.17-rc5 next-20220222]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:    https://github.com/0day-ci/linux/commits/Michael-Cheng/Use-drm_clflush-instead-of-clflush/20220223-140110
base:   git://anongit.freedesktop.org/drm/drm-tip drm-tip
config: arm64-defconfig (https://download.01.org/0day-ci/archive/20220224/202202240139.LQIfrVfS-lkp@intel.com/config)
compiler: aarch64-linux-gcc (GCC) 11.2.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/0day-ci/linux/commit/f4c92ba1f52db578a26ac9944e2cbe52c548e8e9
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Michael-Cheng/Use-drm_clflush-instead-of-clflush/20220223-140110
        git checkout f4c92ba1f52db578a26ac9944e2cbe52c548e8e9
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=arm64 SHELL=/bin/bash

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp at intel.com>

All errors (new ones prefixed by >>, old ones prefixed by <<):

>> ERROR: modpost: "dcache_clean_inval_poc" [drivers/gpu/drm/drm.ko] undefined!

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0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org