radeonsi: always reserve output space for tess factors

Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Tested-by: Dave Airlie <airlied@redhat.com>

diff --git a/src/gallium/drivers/radeonsi/si_state_shaders.c b/src/gallium/drivers/radeonsi/si_state_shaders.c
index c6f51ea..8ec0470 100644 (file)
--- a/src/gallium/drivers/radeonsi/si_state_shaders.c
+++ b/src/gallium/drivers/radeonsi/si_state_shaders.c
@@ -1104,8 +1104,13 @@ static void *si_create_shader_selector(struct pipe_context *ctx,
                        u_vertices_per_prim(sel->info.properties[TGSI_PROPERTY_GS_INPUT_PRIM]);
                break;
 
-       case PIPE_SHADER_VERTEX:
        case PIPE_SHADER_TESS_CTRL:
+               /* Always reserve space for these. */
+               sel->patch_outputs_written |=
+                       (1llu << si_shader_io_get_unique_index(TGSI_SEMANTIC_TESSINNER, 0)) |
+                       (1llu << si_shader_io_get_unique_index(TGSI_SEMANTIC_TESSOUTER, 0));
+               /* fall through */
+       case PIPE_SHADER_VERTEX:
        case PIPE_SHADER_TESS_EVAL:
                for (i = 0; i < sel->info.num_outputs; i++) {
                        unsigned name = sel->info.output_semantic_name[i];