radeonsi: always create wait_mem_scratch for compute-based culling

used by the primitive restart emulation

Acked-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4269>

diff --git a/src/gallium/drivers/radeonsi/si_pipe.c b/src/gallium/drivers/radeonsi/si_pipe.c
index 90e05a590f36454875eb6cae94cdbef66a8b82d8..d900467964b3452a4b94a3eac3bc7e27e2ef8248 100644 (file)
--- a/src/gallium/drivers/radeonsi/si_pipe.c
+++ b/src/gallium/drivers/radeonsi/si_pipe.c
@@ -622,7 +622,8 @@ static struct pipe_context *si_create_context(struct pipe_screen *screen,
                sctx->b.create_video_buffer = vl_video_buffer_create;
        }
 
-       if (sctx->chip_class >= GFX9) {
+       if (sctx->chip_class >= GFX9 ||
+           si_compute_prim_discard_enabled(sctx)) {
                sctx->wait_mem_scratch = si_resource(
                        pipe_buffer_create(screen, 0, PIPE_USAGE_DEFAULT, 8));
                if (!sctx->wait_mem_scratch)