panfrost: Respect early-Z force on Midgard

Fixes dEQP-GLES31.functional.image_load_store.early_fragment_tests.* on
Midgard.

Signed-off-by: Alyssa Rosenzweig <alyssa@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/11123>

diff --git a/src/panfrost/lib/pan_shader.h b/src/panfrost/lib/pan_shader.h
index f5889ee..612810e 100644 (file)
--- a/src/panfrost/lib/pan_shader.h
+++ b/src/panfrost/lib/pan_shader.h
@@ -60,6 +60,10 @@ pan_shader_prepare_midgard_rsd(const struct pan_shader_info *info,
         } else {
                 rsd->properties.midgard.shader_reads_tilebuffer =
                         info->fs.outputs_read;
+
+                /* However, forcing early-z in the shader overrides draw-time */
+                rsd->properties.midgard.force_early_z =
+                        info->fs.early_fragment_tests;
         }
 }