panfrost: Drop mysterious zero=0xFFFF field

It doesn't seem to affect any results and it's not at all clear if/why
the blob sometimes(?) sets it? So let's clean this up since this
solution isn't correct anyway.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Tested-by: Marge Bot <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/3513>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/3513>

diff --git a/src/gallium/drivers/panfrost/pan_context.c b/src/gallium/drivers/panfrost/pan_context.c
index 1cd9cf3f24cfc579ca931192922daf320baa9c43..6c4a510f955b14bac216d1524cfcdcfffca3b7ba 100644 (file)
--- a/src/gallium/drivers/panfrost/pan_context.c
+++ b/src/gallium/drivers/panfrost/pan_context.c
@@ -202,18 +202,6 @@ panfrost_emit_vertex_payload(struct panfrost_context *ctx)
         memcpy(&ctx->payloads[PIPE_SHADER_COMPUTE], &payload, sizeof(payload));
 }
 
-static void
-panfrost_emit_tiler_payload(struct panfrost_context *ctx)
-{
-        struct midgard_payload_vertex_tiler payload = {
-                .prefix = {
-                        .zero1 = 0xffff, /* Why is this only seen on test-quad-textured? */
-                },
-        };
-
-        memcpy(&ctx->payloads[PIPE_SHADER_FRAGMENT], &payload, sizeof(payload));
-}
-
 static unsigned
 translate_tex_wrap(enum pipe_tex_wrap w)
 {
@@ -2734,7 +2722,6 @@ panfrost_create_context(struct pipe_screen *screen, void *priv, unsigned flags)
 
         panfrost_batch_init(ctx);
         panfrost_emit_vertex_payload(ctx);
-        panfrost_emit_tiler_payload(ctx);
         panfrost_invalidate_frame(ctx);
         panfrost_default_shader_backend(ctx);