123 /* plane stride in pixels */
127 	unsigned int stride;  in intel_fbc_plane_stride()  local
129 	stride = plane_state->view.color_plane[0].mapping_stride;  in intel_fbc_plane_stride()
131 		stride /= fb->format->cpp[0];  in intel_fbc_plane_stride()
133 	return stride;  in intel_fbc_plane_stride()
136 /* plane stride based cfb stride in bytes, assuming 1:1 compression limit */
144 /* minimum acceptable cfb stride in bytes, assuming 1:1 compression limit */
152 	unsigned int stride;  in skl_fbc_min_cfb_stride()  local
154 	/* minimum segment stride we can use */  in skl_fbc_min_cfb_stride()
155 	stride = width * cpp * height / limit;  in skl_fbc_min_cfb_stride()
162 		stride += 64;  in skl_fbc_min_cfb_stride()
168 	stride = ALIGN(stride, 512);  in skl_fbc_min_cfb_stride()
171 	return stride * limit / height;  in skl_fbc_min_cfb_stride()
174 /* properly aligned cfb stride in bytes, assuming 1:1 compression limit */
178 	unsigned int stride = _intel_fbc_cfb_stride(plane_state);  in intel_fbc_cfb_stride()  local
186 		return max(ALIGN(stride, 512), skl_fbc_min_cfb_stride(plane_state));  in intel_fbc_cfb_stride()
188 		return stride;  in intel_fbc_cfb_stride()
208 	unsigned int stride = _intel_fbc_cfb_stride(plane_state);  in intel_fbc_override_cfb_stride()  local
212 	 * Override stride in 64 byte units per 4 line segment.  in intel_fbc_override_cfb_stride()
214 	 * Gen9 hw miscalculates cfb stride for linear as  in intel_fbc_override_cfb_stride()
218 	if (stride != stride_aligned ||  in intel_fbc_override_cfb_stride()
854 	unsigned int stride = intel_fbc_plane_stride(plane_state) *  in stride_is_valid()  local
858 	if (drm_WARN_ON_ONCE(&i915->drm, (stride & (64 - 1)) != 0))  in stride_is_valid()
862 	if (stride < 512)  in stride_is_valid()
866 		return stride == 4096 || stride == 8192;  in stride_is_valid()
868 	if (DISPLAY_VER(i915) == 4 && !IS_G4X(i915) && stride < 2048)  in stride_is_valid()
873 	    fb->modifier == DRM_FORMAT_MOD_LINEAR && stride & 511)  in stride_is_valid()
876 	if (stride > 16384)  in stride_is_valid()
1123 		plane_state->no_fbc_reason = "stride not supported";  in intel_fbc_check_plane()