Mesa (main): anv: Enable tessellation redistribution

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Module: Mesa
Branch: main
Commit: a98ece61e9109963da525592a6890ad1166a0993
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=a98ece61e9109963da525592a6890ad1166a0993

Author: Anuj Phogat <anuj.phogat at gmail.com>
Date:   Fri Jun  5 14:40:25 2020 -0700

anv: Enable tessellation redistribution

This patch adds Tessellation Distribution on top of Geometry
Distribution. Using recommended values based on performance studies
across a range of workloads.

Rework:
- Add comment for new packet bits (Sagar)

Signed-off-by: Anuj Phogat <anuj.phogat at gmail.com>
Reviewed-by: Sagar Ghuge <sagar.ghuge at intel.com>
Reviewed-by: Jordan Justen <jordan.l.justen at intel.com>
Reviewed-by: Kenneth Graunke <kenneth at whitecape.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/12091>

---

 src/intel/vulkan/genX_pipeline.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/src/intel/vulkan/genX_pipeline.c b/src/intel/vulkan/genX_pipeline.c
index 7675475e17f..bc34a7e38e3 100644
--- a/src/intel/vulkan/genX_pipeline.c
+++ b/src/intel/vulkan/genX_pipeline.c
@@ -1929,6 +1929,16 @@ emit_3dstate_hs_te_ds(struct anv_graphics_pipeline *pipeline,
       te.TEEnable = true;
       te.MaximumTessellationFactorOdd = 63.0;
       te.MaximumTessellationFactorNotOdd = 64.0;
+#if GFX_VERx10 >= 125
+      te.TessellationDistributionMode = TEDMODE_RR_FREE;
+      te.TessellationDistributionLevel = TEDLEVEL_PATCH;
+      /* 64_TRIANGLES */
+      te.SmallPatchThreshold = 3;
+      /* 1K_TRIANGLES */
+      te.TargetBlockSize = 8;
+      /* 1K_TRIANGLES */
+      te.LocalBOPAccumulatorThreshold = 1;
+#endif
    }
 
    anv_batch_emit(&pipeline->base.batch, GENX(3DSTATE_DS), ds) {