[Mesa-dev] [PATCH 1/2] i965/misc: Use depth/stencil surf's tiling on gen4-5

[Nanley Chery]

Make the 3D engine aware of the depth/stencil surface's tiling before
doing any render operations.

Fixes fbe01625f6bf2cef6742e1ff0d3d44a2afec003e
("i965/miptree: Share tiling_flags in miptree_create").

Reported-by: Mark Janes <mark.a.janes at intel.com>
---
 src/mesa/drivers/dri/i965/brw_misc_state.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/mesa/drivers/dri/i965/brw_misc_state.c b/src/mesa/drivers/dri/i965/brw_misc_state.c
index 9a663b1d61c..5cf704ff0e9 100644
--- a/src/mesa/drivers/dri/i965/brw_misc_state.c
+++ b/src/mesa/drivers/dri/i965/brw_misc_state.c
@@ -267,6 +267,7 @@ brw_emit_depth_stencil_hiz(struct brw_context *brw,
    uint32_t depthbuffer_format = BRW_DEPTHFORMAT_D32_FLOAT;
    uint32_t depth_offset = 0;
    uint32_t width = 1, height = 1;
+   bool tiled_surface = true;
 
    /* If there's a packed depth/stencil bound to stencil only, we need to
     * emit the packed depth/stencil buffer packet.
@@ -282,6 +283,7 @@ brw_emit_depth_stencil_hiz(struct brw_context *brw,
       depth_offset = brw->depthstencil.depth_offset;
       width = depth_irb->Base.Base.Width;
       height = depth_irb->Base.Base.Height;
+      tiled_surface = depth_mt->surf.tiling != ISL_TILING_LINEAR;
    }
 
    const struct gen_device_info *devinfo = &brw->screen->devinfo;
@@ -292,7 +294,7 @@ brw_emit_depth_stencil_hiz(struct brw_context *brw,
    OUT_BATCH((depth_mt ? depth_mt->surf.row_pitch - 1 : 0) |
              (depthbuffer_format << 18) |
              (BRW_TILEWALK_YMAJOR << 26) |
-             (1 << 27) |
+             (tiled_surface << 27) |
              (depth_surface_type << 29));
 
    if (depth_mt) {
-- 
2.18.0