1 files changed, 72 insertions, 0 deletions
diff --git a/source/application/main/include/BufAttributes.hpp b/source/application/main/include/BufAttributes.hpp
new file mode 100644
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--- /dev/null
+++ b/source/application/main/include/BufAttributes.hpp
@@ -0,0 +1,72 @@
+/*
+ * Copyright (c) 2021 Arm Limited. All rights reserved.
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef BUF_ATTRIBUTES_HPP
+#define BUF_ATTRIBUTES_HPP
+
+#if defined(ARM_NPU)
+    /* When Arm NPU is defined, we use the config set by NPU mem parameters */
+    #include "ethosu_mem_config.h"
+    #define BYTE_ALIGNMENT              ETHOS_U_MEM_BYTE_ALIGNMENT
+#else /* defined(ARM_NPU) */
+    /* otherwise, we use the default ones here. */
+    #define ACTIVATION_BUF_SECTION      section(".bss.NoInit.activation_buf_sram")
+    #define ACTIVATION_BUF_SECTION_NAME ("SRAM")
+    #define BYTE_ALIGNMENT              16
+#endif /* defined(ARM_NPU) */
+
+#ifdef __has_attribute
+#define HAVE_ATTRIBUTE(x) __has_attribute(x)
+#else   /* __has_attribute */
+#define HAVE_ATTRIBUTE(x) 0
+#endif  /* __has_attribute */
+
+#if HAVE_ATTRIBUTE(aligned) || (defined(__GNUC__) && !defined(__clang__))
+
+/* We want all buffers/sections to be aligned to 16 byte.  */
+#define ALIGNMENT_REQ               aligned(BYTE_ALIGNMENT)
+
+#define MODEL_SECTION               section("nn_model")
+
+/* Label section name */
+#define LABEL_SECTION               section("labels")
+
+#ifndef ACTIVATION_BUF_SZ
+    #warning  "ACTIVATION_BUF_SZ needs to be defined. Using default value"
+    #define ACTIVATION_BUF_SZ       0x00200000
+#endif  /* ACTIVATION_BUF_SZ */
+
+/* IFM section name. */
+#define IFM_BUF_SECTION             section("ifm")
+
+/* Form the attributes, alignment is mandatory. */
+#define MAKE_ATTRIBUTE(x)           __attribute__((ALIGNMENT_REQ, x))
+#define MODEL_TFLITE_ATTRIBUTE      MAKE_ATTRIBUTE(MODEL_SECTION)
+#define ACTIVATION_BUF_ATTRIBUTE    MAKE_ATTRIBUTE(ACTIVATION_BUF_SECTION)
+#define IFM_BUF_ATTRIBUTE           MAKE_ATTRIBUTE(IFM_BUF_SECTION)
+#define LABELS_ATTRIBUTE            MAKE_ATTRIBUTE(LABEL_SECTION)
+
+#else /* HAVE_ATTRIBUTE(aligned) || (defined(__GNUC__) && !defined(__clang__)) */
+
+#define MODEL_TFLITE_ATTRIBUTE
+#define ACTIVATION_BUF_ATTRIBUTE
+#define IFM_BUF_ATTRIBUTE
+#define LABELS_ATTRIBUTE
+
+#endif /* HAVE_ATTRIBUTE(aligned) || (defined(__GNUC__) && !defined(__clang__)) */
+
+#endif /* BUF_ATTRIBUTES_HPP */