Mesa (main): anv: Enable geometry distribution

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Module: Mesa
Branch: main
Commit: 867e2e0716ed4a753a5591542a91cca31613f46f
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=867e2e0716ed4a753a5591542a91cca31613f46f

Author: Anuj Phogat <anuj.phogat at gmail.com>
Date:   Fri Jun  5 14:39:25 2020 -0700

anv: Enable geometry distribution

Using recommended values based on performance studies across a range
of workloads.

Rework:
 * Always enable geometry distribution
 * Set ListCutIndexEnable if primitive restart is enabled
 * Set distribution mode based on TEEnable
 * Add comment explaining the 3DSTATE_VFG bits (Sagar)

v2:
- Emit 3DSTATE_VFG dynamically based on primitive restart (Ken)

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/gfx8_cmd_buffer.c | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)

diff --git a/src/intel/vulkan/gfx8_cmd_buffer.c b/src/intel/vulkan/gfx8_cmd_buffer.c
index 95250fa01d0..e2b33c3cc51 100644
--- a/src/intel/vulkan/gfx8_cmd_buffer.c
+++ b/src/intel/vulkan/gfx8_cmd_buffer.c
@@ -678,11 +678,42 @@ genX(cmd_buffer_flush_dynamic_state)(struct anv_cmd_buffer *cmd_buffer)
                                       ANV_CMD_DIRTY_INDEX_BUFFER |
                                       ANV_CMD_DIRTY_DYNAMIC_PRIMITIVE_RESTART_ENABLE)) {
       anv_batch_emit(&cmd_buffer->batch, GENX(3DSTATE_VF), vf) {
+#if GFX_VERx10 >= 125
+         vf.GeometryDistributionEnable = true;
+#endif
          vf.IndexedDrawCutIndexEnable  = d->primitive_restart_enable;
          vf.CutIndex                   = cmd_buffer->state.restart_index;
       }
    }
 
+#if GFX_VERx10 >= 125
+   if (cmd_buffer->state.gfx.dirty & (ANV_CMD_DIRTY_PIPELINE |
+                                      ANV_CMD_DIRTY_DYNAMIC_PRIMITIVE_RESTART_ENABLE)) {
+      anv_batch_emit(&cmd_buffer->batch, GENX(3DSTATE_VFG), vfg) {
+         /* If 3DSTATE_TE: TE Enable == 1 then RR_STRICT else RR_FREE*/
+         vfg.DistributionMode =
+            anv_pipeline_has_stage(pipeline, MESA_SHADER_TESS_EVAL) ? RR_STRICT :
+                                                                      RR_FREE;
+         vfg.DistributionGranularity = BatchLevelGranularity;
+         vfg.ListCutIndexEnable = d->primitive_restart_enable;
+         /* 192 vertices for TRILIST_ADJ */
+         vfg.ListNBatchSizeScale = 0;
+         /* Batch size of 384 vertices */
+         vfg.List3BatchSizeScale = 2;
+         /* Batch size of 128 vertices */
+         vfg.List2BatchSizeScale = 1;
+         /* Batch size of 128 vertices */
+         vfg.List1BatchSizeScale = 2;
+         /* Batch size of 256 vertices for STRIP topologies */
+         vfg.StripBatchSizeScale = 3;
+         /* 192 control points for PATCHLIST_3 */
+         vfg.PatchBatchSizeScale = 1;
+         /* 192 control points for PATCHLIST_3 */
+         vfg.PatchBatchSizeMultiplier = 31;
+      }
+   }
+#endif
+
    if (cmd_buffer->state.gfx.dirty & ANV_CMD_DIRTY_DYNAMIC_SAMPLE_LOCATIONS) {
       genX(emit_sample_pattern)(&cmd_buffer->batch,
                                 cmd_buffer->state.gfx.dynamic.sample_locations.samples,