[Mesa-dev] [PATCH] radv: fix VGT_GS_MODE if VS uses the primitive ID

[Samuel Pitoiset]

Found by inspection.

Cc: <mesa-stable at lists.freedesktop.org>
Signed-off-by: Samuel Pitoiset <samuel.pitoiset at gmail.com>
---
 src/amd/vulkan/radv_pipeline.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/src/amd/vulkan/radv_pipeline.c b/src/amd/vulkan/radv_pipeline.c
index a3323ae8135..f6cb3611c9d 100644
--- a/src/amd/vulkan/radv_pipeline.c
+++ b/src/amd/vulkan/radv_pipeline.c
@@ -3264,6 +3264,10 @@ radv_pipeline_generate_vgt_gs_mode(struct radeon_cmdbuf *ctx_cs,
                                    struct radv_pipeline *pipeline)
 {
 	const struct radv_vs_output_info *outinfo = get_vs_output_info(pipeline);
+	const struct radv_shader_variant *vs =
+		pipeline->shaders[MESA_SHADER_TESS_EVAL] ?
+		pipeline->shaders[MESA_SHADER_TESS_EVAL] :
+		pipeline->shaders[MESA_SHADER_VERTEX];
 	unsigned vgt_primitiveid_en = 0;
 	uint32_t vgt_gs_mode = 0;
 
@@ -3274,16 +3278,12 @@ radv_pipeline_generate_vgt_gs_mode(struct radeon_cmdbuf *ctx_cs,
 		vgt_gs_mode = ac_vgt_gs_mode(gs->info.gs.vertices_out,
 		                             pipeline->device->physical_device->rad_info.chip_class);
 	} else if (radv_pipeline_has_ngg(pipeline)) {
-		const struct radv_shader_variant *vs =
-			pipeline->shaders[MESA_SHADER_TESS_EVAL] ?
-			pipeline->shaders[MESA_SHADER_TESS_EVAL] :
-			pipeline->shaders[MESA_SHADER_VERTEX];
 		bool enable_prim_id =
 			outinfo->export_prim_id || vs->info.info.uses_prim_id;
 
 		vgt_primitiveid_en |= S_028A84_PRIMITIVEID_EN(enable_prim_id) |
 				      S_028A84_NGG_DISABLE_PROVOK_REUSE(enable_prim_id);
-	} else if (outinfo->export_prim_id) {
+	} else if (outinfo->export_prim_id || vs->info.info.uses_prim_id) {
 		vgt_gs_mode = S_028A40_MODE(V_028A40_GS_SCENARIO_A);
 		vgt_primitiveid_en |= S_028A84_PRIMITIVEID_EN(1);
 	}
-- 
2.22.0