Mesa (master): zink: add handling for tess shader intrinsics

[GitLab Mirror]

Module: Mesa
Branch: master
Commit: c744f079fe75df5fe4b7ff6a6f2e7421e16de946
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=c744f079fe75df5fe4b7ff6a6f2e7421e16de946

Author: Mike Blumenkrantz <michael.blumenkrantz at gmail.com>
Date:   Thu Dec 17 21:23:54 2020 -0500

zink: add handling for tess shader intrinsics

Reviewed-by: Erik Faye-Lund <kusmabite at gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/8152>

---

 .../drivers/zink/nir_to_spirv/nir_to_spirv.c       | 24 +++++++++++++++++++++-
 1 file changed, 23 insertions(+), 1 deletion(-)

diff --git a/src/gallium/drivers/zink/nir_to_spirv/nir_to_spirv.c b/src/gallium/drivers/zink/nir_to_spirv/nir_to_spirv.c
index b6e33b289d0..3e99aba102e 100644
--- a/src/gallium/drivers/zink/nir_to_spirv/nir_to_spirv.c
+++ b/src/gallium/drivers/zink/nir_to_spirv/nir_to_spirv.c
@@ -71,7 +71,8 @@ struct ntv_context {
 
    SpvId front_face_var, instance_id_var, vertex_id_var,
          primitive_id_var, invocation_id_var, // geometry
-         sample_mask_type, sample_id_var, sample_pos_var;
+         sample_mask_type, sample_id_var, sample_pos_var,
+         tess_patch_vertices_in, tess_coord_var; // tess
 };
 
 static SpvId
@@ -1946,6 +1947,27 @@ emit_intrinsic(struct ntv_context *ctx, nir_intrinsic_instr *intr)
       spirv_builder_end_primitive(&ctx->builder);
       break;
 
+   case nir_intrinsic_load_patch_vertices_in:
+      emit_load_vec_input(ctx, intr, &ctx->tess_patch_vertices_in, "gl_PatchVerticesIn",
+                          SpvBuiltInPatchVertices, nir_type_int);
+      break;
+
+   case nir_intrinsic_load_tess_coord:
+      emit_load_vec_input(ctx, intr, &ctx->tess_coord_var, "gl_TessCoord",
+                          SpvBuiltInTessCoord, nir_type_float);
+      break;
+
+   case nir_intrinsic_memory_barrier_tcs_patch:
+      spirv_builder_emit_memory_barrier(&ctx->builder, SpvScopeWorkgroup,
+                                        SpvMemorySemanticsOutputMemoryMask | SpvMemorySemanticsReleaseMask);
+      break;
+
+   case nir_intrinsic_control_barrier:
+      spirv_builder_emit_control_barrier(&ctx->builder, SpvScopeWorkgroup,
+                                         SpvScopeWorkgroup,
+                                         SpvMemorySemanticsWorkgroupMemoryMask | SpvMemorySemanticsAcquireMask);
+      break;
+
    default:
       fprintf(stderr, "emit_intrinsic: not implemented (%s)\n",
               nir_intrinsic_infos[intr->intrinsic].name);