From: Marek Olšák <marek.olsak@amd.com>
Date: Sat, 22 Jun 2019 01:06:16 +0000 (-0400)
Subject: radeonsi/gfx10: unpack GS invocation ID
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=6cf2fb1fc48974d72a37bbe3cc77a69244a2855a;p=mesa.git

radeonsi/gfx10: unpack GS invocation ID

Acked-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
---

diff --git a/src/gallium/drivers/radeonsi/si_shader.c b/src/gallium/drivers/radeonsi/si_shader.c
index 27a5aa3b5ee..1dec250e6d3 100644
--- a/src/gallium/drivers/radeonsi/si_shader.c
+++ b/src/gallium/drivers/radeonsi/si_shader.c
@@ -2044,12 +2044,19 @@ void si_load_system_value(struct si_shader_context *ctx,
 		break;
 
 	case TGSI_SEMANTIC_INVOCATIONID:
-		if (ctx->type == PIPE_SHADER_TESS_CTRL)
+		if (ctx->type == PIPE_SHADER_TESS_CTRL) {
 			value = unpack_llvm_param(ctx, ctx->abi.tcs_rel_ids, 8, 5);
-		else if (ctx->type == PIPE_SHADER_GEOMETRY)
-			value = ctx->abi.gs_invocation_id;
-		else
+		} else if (ctx->type == PIPE_SHADER_GEOMETRY) {
+			if (ctx->screen->info.chip_class >= GFX10) {
+				value = LLVMBuildAnd(ctx->ac.builder,
+						     ctx->abi.gs_invocation_id,
+						     LLVMConstInt(ctx->i32, 127, 0), "");
+			} else {
+				value = ctx->abi.gs_invocation_id;
+			}
+		} else {
 			assert(!"INVOCATIONID not implemented");
+		}
 		break;
 
 	case TGSI_SEMANTIC_POSITION: