freedreno: Move assert

The batch can be flushed immediately after unlocking, so this assert
needs to move.

Signed-off-by: Rob Clark <robdclark@chromium.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/11200>

src/gallium/drivers/freedreno/freedreno_batch.c

@@ -535,8 +535,6 @@ fd_batch_resource_read_slowpath(struct fd_batch *batch, struct fd_resource *rsc)
 void
 fd_batch_check_size(struct fd_batch *batch)
 {
-   debug_assert(!batch->flushed);
-
    if (FD_DBG(FLUSH)) {
       fd_batch_flush(batch);
       return;

src/gallium/drivers/freedreno/freedreno_draw.c

@@ -378,6 +378,8 @@ fd_draw_vbo(struct pipe_context *pctx, const struct pipe_draw_info *info,
    if (FD_DBG(DDRAW))
       fd_context_all_dirty(ctx);
 
+   debug_assert(!batch->flushed);
+
    fd_batch_unlock_submit(batch);
    fd_batch_check_size(batch);
    fd_batch_reference(&batch, NULL);
@@ -494,6 +496,8 @@ fd_clear(struct pipe_context *pctx, unsigned buffers,
       }
    }
 
+   debug_assert(!batch->flushed);
+
    fd_batch_unlock_submit(batch);
    fd_batch_check_size(batch);