source/hal/source/components/npu/include/ethosu_mem_config.h

/*
 * SPDX-FileCopyrightText: Copyright 2022 Arm Limited and/or its affiliates <open-source-office@arm.com>
 * 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 ETHOS_U_NPU_MEM_CONFIG_H
#define ETHOS_U_NPU_MEM_CONFIG_H

#define ETHOS_U_NPU_MEMORY_MODE_SRAM_ONLY           0
#define ETHOS_U_NPU_MEMORY_MODE_SHARED_SRAM         1
#define ETHOS_U_NPU_MEMORY_MODE_DEDICATED_SRAM      2

#define ETHOS_U_MEM_BYTE_ALIGNMENT                  16

#ifndef ETHOS_U_NPU_MEMORY_MODE
    #define ETHOS_U_NPU_MEMORY_MODE                 ETHOS_U_MEMORY_MODE_SHARED_SRAM
#endif /* ETHOS_U_NPU_MEMORY_MODE */

#if (ETHOS_U_NPU_MEMORY_MODE==ETHOS_U_NPU_MEMORY_MODE_DEDICATED_SRAM)
    #ifndef ETHOS_U_NPU_CACHE_SIZE
        #define ETHOS_U_CACHE_BUF_SZ                (393216U)  /* See vela doc for reference */
    #else
        #define ETHOS_U_CACHE_BUF_SZ                ETHOS_U_NPU_CACHE_SIZE
    #endif /* ETHOS_U_NPU_CACHE_SIZE */
#else
    #define ETHOS_U_CACHE_BUF_SZ    (0U)
#endif /* CACHE_BUF_SZ */

/**
 * Activation buffer aka tensor arena section name
 * We have to place the tensor arena in different region based on the memory config.
 **/
#if (ETHOS_U_NPU_MEMORY_MODE==ETHOS_U_NPU_MEMORY_MODE_SHARED_SRAM)
    #define ACTIVATION_BUF_SECTION      section(".bss.NoInit.activation_buf_sram")
    #define ACTIVATION_BUF_SECTION_NAME ("SRAM")
#elif (ETHOS_U_NPU_MEMORY_MODE==ETHOS_U_NPU_MEMORY_MODE_SRAM_ONLY)
    #define ACTIVATION_BUF_SECTION      section(".bss.NoInit.activation_buf_sram")
    #define ACTIVATION_BUF_SECTION_NAME ("SRAM")
#elif (ETHOS_U_NPU_MEMORY_MODE==ETHOS_U_NPU_MEMORY_MODE_DEDICATED_SRAM)
    #define ACTIVATION_BUF_SECTION      section("activation_buf_dram")
    #define CACHE_BUF_SECTION           section(".bss.NoInit.ethos_u_cache")
    #define ACTIVATION_BUF_SECTION_NAME ("DDR/DRAM")
    #define CACHE_BUF_ATTRIBUTE         __attribute__((aligned(ETHOS_U_MEM_BYTE_ALIGNMENT), CACHE_BUF_SECTION))
#endif

#endif /* ETHOS_U_NPU_MEM_CONFIG_H */