tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 52a0bcb60e40f30211cb5cbbb0f582ec4e91d896 commit: 30d2bfd093839cf6eef93f9c2cbdc347c7bf8b20 [3989/11541] drm/i915/gem: Almagamate clflushes on freeze config: x86_64-randconfig-a002-20210215 (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project c9439ca36342fb6013187d0a69aef92736951476) 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 # install x86_64 cross compiling tool for clang build # apt-get install binutils-x86-64-linux-gnu # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=30d2bfd093839cf6eef93f9c2cbdc347c7bf8b20 git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git fetch --no-tags linux-next master git checkout 30d2bfd093839cf6eef93f9c2cbdc347c7bf8b20 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> Note: the linux-next/master HEAD 52a0bcb60e40f30211cb5cbbb0f582ec4e91d896 builds fine. It may have been fixed somewhere. All errors (new ones prefixed by >>): >> drivers/gpu/drm/i915/i915_gem.c:1182:2: error: implicit declaration of function 'wbinvd_on_all_cpus' [-Werror,-Wimplicit-function-declaration] wbinvd_on_all_cpus(); ^ 1 error generated. vim +/wbinvd_on_all_cpus +1182 drivers/gpu/drm/i915/i915_gem.c 1157 1158 int i915_gem_freeze_late(struct drm_i915_private *i915) 1159 { 1160 struct drm_i915_gem_object *obj; 1161 intel_wakeref_t wakeref; 1162 1163 /* 1164 * Called just before we write the hibernation image. 1165 * 1166 * We need to update the domain tracking to reflect that the CPU 1167 * will be accessing all the pages to create and restore from the 1168 * hibernation, and so upon restoration those pages will be in the 1169 * CPU domain. 1170 * 1171 * To make sure the hibernation image contains the latest state, 1172 * we update that state just before writing out the image. 1173 * 1174 * To try and reduce the hibernation image, we manually shrink 1175 * the objects as well, see i915_gem_freeze() 1176 */ 1177 1178 with_intel_runtime_pm(&i915->runtime_pm, wakeref) 1179 i915_gem_shrink(i915, -1UL, NULL, ~0); 1180 i915_gem_drain_freed_objects(i915); 1181 > 1182 wbinvd_on_all_cpus(); 1183 list_for_each_entry(obj, &i915->mm.shrink_list, mm.link) 1184 __start_cpu_write(obj); 1185 1186 return 0; 1187 } 1188 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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