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Diffstat (limited to 'source/application/tensorflow-lite-micro/include/BufAttributes.hpp')
| -rw-r--r-- | source/application/tensorflow-lite-micro/include/BufAttributes.hpp | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/source/application/tensorflow-lite-micro/include/BufAttributes.hpp b/source/application/tensorflow-lite-micro/include/BufAttributes.hpp new file mode 100644 index 0000000..126172b --- /dev/null +++ b/source/application/tensorflow-lite-micro/include/BufAttributes.hpp @@ -0,0 +1,85 @@ +/* + * 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 + +#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(16) + +/* Model data section name. */ +#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 */ + +#ifndef ACTIVATION_BUF_SRAM_SZ + #warning "ACTIVATION_BUF_SRAM_SZ needs to be defined. Using default value = 0" + #define ACTIVATION_BUF_SRAM_SZ 0x00000000 +#endif /* ACTIVATION_BUF_SRAM_SZ */ + +/** + * Activation buffer aka tensor arena section name + * We have to place the tensor arena in different region based on its size. + * If it fits in SRAM, we place it there, and also mark it by giving it a + * different section name. The scatter file places the ZI data in DDR and + * the uninitialised region in the SRAM. + **/ +#define ACTIVATION_BUF_SECTION_SRAM section(".bss.NoInit.activation_buf") +#define ACTIVATION_BUF_SECTION_DRAM section("activation_buf") + +#if ACTIVATION_BUF_SZ > ACTIVATION_BUF_SRAM_SZ /* Will buffer not fit in SRAM? */ + #define ACTIVATION_BUF_SECTION ACTIVATION_BUF_SECTION_DRAM + #define ACTIVATION_BUF_SECTION_NAME ("DDR") +#else /* ACTIVATION_BUF_SZ > 0x00200000 */ + #define ACTIVATION_BUF_SECTION ACTIVATION_BUF_SECTION_SRAM + #define ACTIVATION_BUF_SECTION_NAME ("SRAM") +#endif /* ACTIVATION_BUF_SZ > 0x00200000 */ + +/* 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 */
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