[Mesa-dev] [PATCH 08/31] radv/ac: handle geom shader sgpr/vgpr inputs

[Dave Airlie]

From: Dave Airlie <airlied at redhat.com>

This just sets up the gpr inputs.

Signed-off-by: Dave Airlie <airlied at redhat.com>
---
 src/amd/common/ac_nir_to_llvm.c | 39 +++++++++++++++++++++++++++++++++++++++
 src/amd/common/ac_nir_to_llvm.h |  2 ++
 2 files changed, 41 insertions(+)

diff --git a/src/amd/common/ac_nir_to_llvm.c b/src/amd/common/ac_nir_to_llvm.c
index 8566f09..0ceeb42 100644
--- a/src/amd/common/ac_nir_to_llvm.c
+++ b/src/amd/common/ac_nir_to_llvm.c
@@ -86,6 +86,13 @@ struct nir_to_llvm_context {
 	LLVMValueRef vs_prim_id;
 	LLVMValueRef instance_id;
 
+	LLVMValueRef gsvs_ring_stride;
+	LLVMValueRef gsvs_num_entries;
+	LLVMValueRef gs2vs_offset;
+	LLVMValueRef gs_wave_id;
+	LLVMValueRef gs_vtx_offset[6];
+	LLVMValueRef gs_prim_id, gs_invocation_id;
+
 	LLVMValueRef prim_mask;
 	LLVMValueRef sample_positions;
 	LLVMValueRef persp_sample, persp_center, persp_centroid;
@@ -435,6 +442,22 @@ static void create_function(struct nir_to_llvm_context *ctx)
 		arg_types[arg_idx++] = ctx->i32; // vs prim id
 		arg_types[arg_idx++] = ctx->i32; // instance id
 		break;
+	case MESA_SHADER_GEOMETRY:
+		arg_types[arg_idx++] = ctx->i32; // gsvs stride
+		arg_types[arg_idx++] = ctx->i32; // gsvs num entires
+		user_sgpr_count = arg_idx;
+		arg_types[arg_idx++] = ctx->i32; // gs2vs offset
+	        arg_types[arg_idx++] = ctx->i32; // wave id
+		sgpr_count = arg_idx;
+		arg_types[arg_idx++] = ctx->i32; // vtx0
+		arg_types[arg_idx++] = ctx->i32; // vtx1
+		arg_types[arg_idx++] = ctx->i32; // prim id
+		arg_types[arg_idx++] = ctx->i32; // vtx2
+		arg_types[arg_idx++] = ctx->i32; // vtx3
+		arg_types[arg_idx++] = ctx->i32; // vtx4
+		arg_types[arg_idx++] = ctx->i32; // vtx5
+		arg_types[arg_idx++] = ctx->i32; // GS instance id
+		break;
 	case MESA_SHADER_FRAGMENT:
 		arg_types[arg_idx++] = const_array(ctx->f32, 32); /* sample positions */
 		user_sgpr_count = arg_idx;
@@ -525,6 +548,22 @@ static void create_function(struct nir_to_llvm_context *ctx)
 		ctx->vs_prim_id = LLVMGetParam(ctx->main_function, arg_idx++);
 		ctx->instance_id = LLVMGetParam(ctx->main_function, arg_idx++);
 		break;
+	case MESA_SHADER_GEOMETRY:
+		set_userdata_location_shader(ctx, AC_UD_GS_VS_RING_STRIDE_ENTRIES, user_sgpr_idx, 2);
+		user_sgpr_idx += 2;
+		ctx->gsvs_ring_stride = LLVMGetParam(ctx->main_function, arg_idx++);
+		ctx->gsvs_num_entries = LLVMGetParam(ctx->main_function, arg_idx++);
+		ctx->gs2vs_offset = LLVMGetParam(ctx->main_function, arg_idx++);
+		ctx->gs_wave_id = LLVMGetParam(ctx->main_function, arg_idx++);
+		ctx->gs_vtx_offset[0] = LLVMGetParam(ctx->main_function, arg_idx++);
+		ctx->gs_vtx_offset[1] = LLVMGetParam(ctx->main_function, arg_idx++);
+		ctx->gs_prim_id = LLVMGetParam(ctx->main_function, arg_idx++);
+		ctx->gs_vtx_offset[2] = LLVMGetParam(ctx->main_function, arg_idx++);
+		ctx->gs_vtx_offset[3] = LLVMGetParam(ctx->main_function, arg_idx++);
+		ctx->gs_vtx_offset[4] = LLVMGetParam(ctx->main_function, arg_idx++);
+		ctx->gs_vtx_offset[5] = LLVMGetParam(ctx->main_function, arg_idx++);
+		ctx->gs_invocation_id = LLVMGetParam(ctx->main_function, arg_idx++);
+		break;
 	case MESA_SHADER_FRAGMENT:
 		set_userdata_location_shader(ctx, AC_UD_PS_SAMPLE_POS, user_sgpr_idx, 2);
 		user_sgpr_idx += 2;
diff --git a/src/amd/common/ac_nir_to_llvm.h b/src/amd/common/ac_nir_to_llvm.h
index 9b83dc0..d6055e9 100644
--- a/src/amd/common/ac_nir_to_llvm.h
+++ b/src/amd/common/ac_nir_to_llvm.h
@@ -73,6 +73,8 @@ enum ac_ud_index {
 	AC_UD_PS_MAX_UD,
 	AC_UD_CS_GRID_SIZE = AC_UD_SHADER_START,
 	AC_UD_CS_MAX_UD,
+	AC_UD_GS_VS_RING_STRIDE_ENTRIES = AC_UD_SHADER_START,
+	AC_UD_GS_MAX_UD,
 	AC_UD_MAX_UD = AC_UD_VS_MAX_UD,
 };
 
-- 
2.9.3