driver refactoring

driver/common/vx_utils.h

@@ -0,0 +1,11 @@
+#pragma once
+
+#include <cstdint>
+
+uint64_t aligned_size(uint64_t size, uint64_t alignment);
+
+bool is_aligned(uint64_t addr, uint64_t alignment);
+
+#define CACHE_BLOCK_SIZE    64
+#define ALLOC_BASE_ADDR     0x00000000
+#define LOCAL_MEM_SIZE      4294967296     // 4 GB