Hi Jani, kernel test robot noticed the following build errors:
[auto build test ERROR on drm-tip/drm-tip] [cannot apply to drm-i915/for-linux-next drm-i915/for-linux-next-fixes drm-xe/drm-xe-next linus/master v6.18 next-20251204] [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#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Jani-Nikula/drm-i915-fbc-let-to_intel_display-do-its-generic-magic/20251205-012659 base: https://gitlab.freedesktop.org/drm/tip.git drm-tip patch link: https://lore.kernel.org/r/cc2125f57b98401ea47746ad4784bb4bc6b198c2.1764868989.git.jani.nikula%40intel.com patch subject: [PATCH 3/4] drm/{i915, xe}/stolen: move stolen memory handling to display parent interface config: x86_64-rhel-9.4-rust (https://download.01.org/0day-ci/archive/20251205/[email protected]/config) compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261) rustc: rustc 1.88.0 (6b00bc388 2025-06-23) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251205/[email protected]/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <[email protected]> | Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/ All errors (new ones prefixed by >>): >> drivers/gpu/drm/i915/display/intel_fbc.c:1011:11: error: call to undeclared >> function 'i915_gem_stolen_node_offset'; ISO C99 and later do not support >> implicit function declarations [-Wimplicit-function-declaration] 1011 | offset = i915_gem_stolen_node_offset(fbc->compressed_fb) / (4 * 1024); | ^ drivers/gpu/drm/i915/display/intel_fbc.c:1011:11: note: did you mean 'intel_parent_stolen_node_offset'? drivers/gpu/drm/i915/display/intel_parent.h:41:5: note: 'intel_parent_stolen_node_offset' declared here 41 | u32 intel_parent_stolen_node_offset(struct intel_display *display, struct intel_stolen_node *node); | ^ 1 error generated. vim +/i915_gem_stolen_node_offset +1011 drivers/gpu/drm/i915/display/intel_fbc.c 0b806d62fd5f59 Vinod Govindapillai 2025-11-28 998 0b806d62fd5f59 Vinod Govindapillai 2025-11-28 999 static void fbc_sys_cache_enable(const struct intel_fbc *fbc) 0b806d62fd5f59 Vinod Govindapillai 2025-11-28 1000 { 0b806d62fd5f59 Vinod Govindapillai 2025-11-28 1001 struct intel_display *display = fbc->display; 0b806d62fd5f59 Vinod Govindapillai 2025-11-28 1002 struct sys_cache_cfg *sys_cache = &display->fbc.sys_cache; 0b806d62fd5f59 Vinod Govindapillai 2025-11-28 1003 int range, offset; 0b806d62fd5f59 Vinod Govindapillai 2025-11-28 1004 u32 cfg; 0b806d62fd5f59 Vinod Govindapillai 2025-11-28 1005 0b806d62fd5f59 Vinod Govindapillai 2025-11-28 1006 if (!HAS_FBC_SYS_CACHE(display)) 0b806d62fd5f59 Vinod Govindapillai 2025-11-28 1007 return; 0b806d62fd5f59 Vinod Govindapillai 2025-11-28 1008 0b806d62fd5f59 Vinod Govindapillai 2025-11-28 1009 range = fbc_sys_cache_limit(display) / (64 * 1024); 0b806d62fd5f59 Vinod Govindapillai 2025-11-28 1010 0b806d62fd5f59 Vinod Govindapillai 2025-11-28 @1011 offset = i915_gem_stolen_node_offset(fbc->compressed_fb) / (4 * 1024); 0b806d62fd5f59 Vinod Govindapillai 2025-11-28 1012 0b806d62fd5f59 Vinod Govindapillai 2025-11-28 1013 cfg = FBC_SYS_CACHE_TAG_USE_RES_SPACE | FBC_SYS_CACHEABLE_RANGE(range) | 0b806d62fd5f59 Vinod Govindapillai 2025-11-28 1014 FBC_SYS_CACHE_START_BASE(offset); 0b806d62fd5f59 Vinod Govindapillai 2025-11-28 1015 0b806d62fd5f59 Vinod Govindapillai 2025-11-28 1016 mutex_lock(&sys_cache->lock); 0b806d62fd5f59 Vinod Govindapillai 2025-11-28 1017 /* update sys cache config only if sys cache is unassigned */ 0b806d62fd5f59 Vinod Govindapillai 2025-11-28 1018 if (sys_cache->id == FBC_SYS_CACHE_ID_NONE) 0b806d62fd5f59 Vinod Govindapillai 2025-11-28 1019 fbc_sys_cache_update_config(display, cfg, fbc->id); 0b806d62fd5f59 Vinod Govindapillai 2025-11-28 1020 mutex_unlock(&sys_cache->lock); 0b806d62fd5f59 Vinod Govindapillai 2025-11-28 1021 } 0b806d62fd5f59 Vinod Govindapillai 2025-11-28 1022 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
