Messages in this thread | | | Date | Tue, 28 Sep 2021 04:51:38 +0800 | From | kernel test robot <> | Subject | drivers/gpu/drm/i915/display/intel_fbc.c:101:18: error: use of undeclared identifier 'i915' |
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tree: https://github.com/0day-ci/linux/commits/Ville-Syrjala/drm-i915-fbc-Rework-CFB-stride-size-calculations/20210922-130015 head: 2ae62c15535ddb9b3a5215bc0266dd46e328f38c commit: cb0b857a450fc222fe722d794cff9fbafc6fb334 drm/i915/fbc: Implement Wa_16011863758 for icl+ date: 6 days ago config: i386-randconfig-a016-20210927 (attached as .config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project dc6e8dfdfe7efecfda318d43a06fae18b40eb498) 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/cb0b857a450fc222fe722d794cff9fbafc6fb334 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Ville-Syrjala/drm-i915-fbc-Rework-CFB-stride-size-calculations/20210922-130015 git checkout cb0b857a450fc222fe722d794cff9fbafc6fb334 # save the attached .config to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=i386 SHELL=/bin/bash
If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@intel.com>
All errors (new ones prefixed by >>):
>> drivers/gpu/drm/i915/display/intel_fbc.c:101:18: error: use of undeclared identifier 'i915' if (DISPLAY_VER(i915) >= 11) ^ 1 error generated.
vim +/i915 +101 drivers/gpu/drm/i915/display/intel_fbc.c
85 86 /* minimum acceptable cfb stride in bytes, assuming 1:1 compression limit */ 87 static unsigned int skl_fbc_min_cfb_stride(const struct intel_fbc_state_cache *cache) 88 { 89 unsigned int limit = 4; /* 1:4 compression limit is the worst case */ 90 unsigned int cpp = 4; /* FBC always 4 bytes per pixel */ 91 unsigned int height = 4; /* FBC segment is 4 lines */ 92 unsigned int stride; 93 94 /* minimum segment stride we can use */ 95 stride = cache->plane.src_w * cpp * height / limit; 96 97 /* 98 * Wa_16011863758: icl+ 99 * Avoid some hardware segment address miscalculation. 100 */ > 101 if (DISPLAY_VER(i915) >= 11) 102 stride += 64; 103 104 /* 105 * At least some of the platforms require each 4 line segment to 106 * be 512 byte aligned. Just do it always for simplicity. 107 */ 108 stride = ALIGN(stride, 512); 109 110 /* convert back to single line equivalent with 1:1 compression limit */ 111 return stride * limit / height; 112 } 113
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