radeonsi: update all GSVS ring descriptors for new buffer allocations

Fixes GL45-CTS.gtf40.GL3Tests.transform_feedback3.transform_feedback3_geometry_instanced.

Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Edward O'Callaghan <funfunctor@folklore1984.net>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
diff --git a/src/gallium/drivers/radeonsi/si_state_shaders.c b/src/gallium/drivers/radeonsi/si_state_shaders.c
index 0afc3b4..ea71569 100644
--- a/src/gallium/drivers/radeonsi/si_state_shaders.c
+++ b/src/gallium/drivers/radeonsi/si_state_shaders.c
@@ -2038,10 +2038,15 @@
 				   sctx->esgs_ring, 0, sctx->esgs_ring->width0,
 				   false, false, 0, 0, 0);
 	}
-	if (sctx->gsvs_ring)
+	if (sctx->gsvs_ring) {
 		si_set_ring_buffer(&sctx->b.b, SI_VS_RING_GSVS,
 				   sctx->gsvs_ring, 0, sctx->gsvs_ring->width0,
 				   false, false, 0, 0, 0);
+
+		/* Also update SI_GS_RING_GSVSi descriptors. */
+		sctx->last_gsvs_itemsize = 0;
+	}
+
 	return true;
 }