From 4b63535d3cce80ebb8f5e3990e0c50352efada01 Mon Sep 17 00:00:00 2001
From: Ian Forbes <ian.forbes@broadcom.com>
Date: Fri, 5 Dec 2025 13:24:35 -0600
Subject: [PATCH] svga: Fix vertex-fallbacks Piglit test

This test was hitting an assert because gl_PrimitiveID is an input to the
FS that does not come from the VS which should be handled similar to
TGSI_SEMANTIC_FACE.

Signed-off-by: Ian Forbes <ian.forbes@broadcom.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/38834>
---
 src/gallium/drivers/svga/svga_swtnl_state.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/gallium/drivers/svga/svga_swtnl_state.c b/src/gallium/drivers/svga/svga_swtnl_state.c
index 07d1246d9fb..3e4665bac75 100644
--- a/src/gallium/drivers/svga/svga_swtnl_state.c
+++ b/src/gallium/drivers/svga/svga_swtnl_state.c
@@ -272,6 +272,7 @@ svga_swtnl_update_vdecl(struct svga_context *svga)
          break;
       case TGSI_SEMANTIC_POSITION:
       case TGSI_SEMANTIC_FACE:
+      case TGSI_SEMANTIC_PRIMID:
          /* generated internally, not a vertex shader output */
          break;
       default: