From f469235a6e0c239166ba803e121994063b47ddd3 Mon Sep 17 00:00:00 2001 From: Jason Ekstrand Date: Fri, 25 Nov 2016 22:09:30 -0800 Subject: [PATCH] anv/cmd_buffer: Remove the 1-D case from the HiZ QPitch calculation The 1-D special case doesn't actually apply to depth or HiZ. I discovered this while converting BLORP over to genxml and ISL. The reason is that the 1-D special case only applies to the new Sky Lake 1-D layout which is only used for LINEAR 1-D images. For tiled 1-D images, such as depth buffers, the old gen4 2-D layout is used and the QPitch should be in rows. Reviewed-by: Nanley Chery Cc: "13.0" --- src/intel/vulkan/genX_cmd_buffer.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/src/intel/vulkan/genX_cmd_buffer.c b/src/intel/vulkan/genX_cmd_buffer.c index e9a1ef9dfac..73f4523c6d6 100644 --- a/src/intel/vulkan/genX_cmd_buffer.c +++ b/src/intel/vulkan/genX_cmd_buffer.c @@ -2181,11 +2181,14 @@ cmd_buffer_emit_depth_stencil(struct anv_cmd_buffer *cmd_buffer) * - SURFTYPE_1D: distance in pixels between array slices * - SURFTYPE_2D/CUBE: distance in rows between array slices * - SURFTYPE_3D: distance in rows between R - slices + * + * Unfortunately, the docs aren't 100% accurate here. They fail to + * mention that the 1-D rule only applies to linear 1-D images. + * Since depth and HiZ buffers are always tiled, they are treated as + * 2-D images. Prior to Sky Lake, this field is always in rows. */ hdb.SurfaceQPitch = - image->aux_surface.isl.dim == ISL_SURF_DIM_1D ? - isl_surf_get_array_pitch_el(&image->aux_surface.isl) >> 2 : - isl_surf_get_array_pitch_el_rows(&image->aux_surface.isl) >> 2; + isl_surf_get_array_pitch_el_rows(&image->aux_surface.isl) >> 2; #endif } } else { -- 2.30.2