Re: [PATCH 2/2] drm/tegra: add scanout support for implicit tiling parameters

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Hi Diogo,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on tegra/for-next]
[also build test ERROR on drm/drm-next tegra-drm/drm/tegra/for-next linus/master v6.2-rc6 next-20230130]
[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/Diogo-Ivo/drm-tegra-add-sector-layout-to-SET-GET_TILING-IOCTLs/20230120-190334
base:   https://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux.git for-next
patch link:    https://lore.kernel.org/r/20230120105858.214440-3-diogo.ivo%40tecnico.ulisboa.pt
patch subject: [PATCH 2/2] drm/tegra: add scanout support for implicit tiling parameters
config: arm64-randconfig-r016-20230130 (https://download.01.org/0day-ci/archive/20230131/202301310334.4oiy5KGY-lkp@xxxxxxxxx/config)
compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 4196ca3278f78c6e19246e54ab0ecb364e37d66a)
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 arm64 cross compiling tool for clang build
        # apt-get install binutils-aarch64-linux-gnu
        # https://github.com/intel-lab-lkp/linux/commit/fffef2135ccf679112cc60dee0532494c1389c78
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Diogo-Ivo/drm-tegra-add-sector-layout-to-SET-GET_TILING-IOCTLs/20230120-190334
        git checkout fffef2135ccf679112cc60dee0532494c1389c78
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm64 olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash drivers/gpu/drm/tegra/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@xxxxxxxxx>

All errors (new ones prefixed by >>):

>> drivers/gpu/drm/tegra/fb.c:149:4: error: expected expression
                           unsigned long height = planes[0]->tiling.value;
                           ^
>> drivers/gpu/drm/tegra/fb.c:151:8: error: use of undeclared identifier 'height'
                           if (height > 5) {
                               ^
>> drivers/gpu/drm/tegra/fb.c:151:8: error: use of undeclared identifier 'height'
>> drivers/gpu/drm/tegra/fb.c:151:8: error: use of undeclared identifier 'height'
   drivers/gpu/drm/tegra/fb.c:153:6: error: use of undeclared identifier 'height'
                                           height);
                                           ^
   drivers/gpu/drm/tegra/fb.c:159:49: error: use of undeclared identifier 'height'
                           modifier = DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK(height);
                                                                        ^
   6 errors generated.


vim +149 drivers/gpu/drm/tegra/fb.c

   110	
   111	static struct drm_framebuffer *tegra_fb_alloc(struct drm_device *drm,
   112						      const struct drm_mode_fb_cmd2 *mode_cmd,
   113						      struct tegra_bo **planes,
   114						      unsigned int num_planes)
   115	{
   116		struct drm_framebuffer *fb;
   117		unsigned int i;
   118		int err;
   119		struct drm_mode_fb_cmd2 mode_cmd_local;
   120	
   121		fb = kzalloc(sizeof(*fb), GFP_KERNEL);
   122		if (!fb)
   123			return ERR_PTR(-ENOMEM);
   124	
   125		/* Check for implicitly defined modifiers using
   126		 * the state defined by tegra_gem_set_tiling().
   127		 */
   128		if (!(mode_cmd->flags & DRM_MODE_FB_MODIFIERS)) {
   129			uint64_t modifier;
   130	
   131			mode_cmd_local = *mode_cmd;
   132	
   133			switch (planes[0]->tiling.mode) {
   134			case TEGRA_BO_TILING_MODE_PITCH:
   135				modifier = DRM_FORMAT_MOD_LINEAR;
   136				break;
   137	
   138			case TEGRA_BO_TILING_MODE_TILED:
   139				modifier = DRM_FORMAT_MOD_NVIDIA_TEGRA_TILED;
   140				break;
   141	
   142			/* With all rigour this reconstruction of the modifier is
   143			 * incomplete, as it skips some fields (like page kind).
   144			 * However, along with the sector layout below it should
   145			 * contain all the bits of information needed by the
   146			 * scanout hardware.
   147			 */
   148			case TEGRA_BO_TILING_MODE_BLOCK:
 > 149				unsigned long height = planes[0]->tiling.value;
   150	
 > 151				if (height > 5) {
   152					dev_err(drm->dev, "invalid block height value: %ld\n",
   153						height);
   154	
   155					err = -EINVAL;
   156					goto cleanup;
   157				}
   158	
   159				modifier = DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK(height);
   160				break;
   161	
   162			default:
   163				dev_err(drm->dev, "invalid tiling mode\n");
   164				err = -EINVAL;
   165				goto cleanup;
   166			}
   167	
   168			if (planes[0]->tiling.sector_layout == DRM_TEGRA_GEM_SECTOR_LAYOUT_GPU)
   169				modifier |= DRM_FORMAT_MOD_NVIDIA_SECTOR_LAYOUT;
   170	
   171			mode_cmd_local.modifier[0] = modifier;
   172	
   173			mode_cmd = &mode_cmd_local;
   174		}
   175	
   176		drm_helper_mode_fill_fb_struct(drm, fb, mode_cmd);
   177	
   178		for (i = 0; i < fb->format->num_planes; i++)
   179			fb->obj[i] = &planes[i]->gem;
   180	
   181		err = drm_framebuffer_init(drm, fb, &tegra_fb_funcs);
   182		if (err < 0) {
   183			dev_err(drm->dev, "failed to initialize framebuffer: %d\n",
   184				err);
   185			goto cleanup;
   186		}
   187	
   188		return fb;
   189	
   190	cleanup:
   191		kfree(fb);
   192		return ERR_PTR(err);
   193	}
   194	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests



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