[Mesa-dev] [PATCH 1/3] blorp: Set FullSurfaceDepthStencilClear for full-surface clears

[Jason Ekstrand]

---
 src/intel/blorp/blorp_clear.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/src/intel/blorp/blorp_clear.c b/src/intel/blorp/blorp_clear.c
index 5b575dccc22..03badf83ada 100644
--- a/src/intel/blorp/blorp_clear.c
+++ b/src/intel/blorp/blorp_clear.c
@@ -648,6 +648,18 @@ blorp_clear_depth_stencil(struct blorp_batch *batch,
    }
 }
 
+static bool
+is_full_surface_clear(const struct isl_surf *surf, uint32_t level,
+                      uint32_t x0, uint32_t y0, uint32_t x1, uint32_t y1)
+{
+   const struct isl_extent2d level_extent = {
+      .w = minify(surf->logical_level0_px.width, level),
+      .h = minify(surf->logical_level0_px.height, level),
+   };
+   return x0 == 0 && x1 == level_extent.width &&
+          y0 == 0 && y1 == level_extent.height;
+}
+
 bool
 blorp_can_hiz_clear_depth(uint8_t gen, enum isl_format format,
                           uint32_t num_samples,
@@ -746,6 +758,9 @@ blorp_hiz_clear_depth_stencil(struct blorp_batch *batch,
          params.depth_format =
             isl_format_get_depth_format(depth->surf->format, false);
          params.num_samples = params.depth.surf.samples;
+
+         if (is_full_surface_clear(depth->surf, level, x0, y0, x1, y1))
+            params.full_surface_hiz_op = true;
       }
 
       batch->blorp->exec(batch, &params);
-- 
2.19.1