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/*
* Copyright (c) 2006-2021, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*/
#ifndef MEMORY_LAYOUT_H__
#define MEMORY_LAYOUT_H__
#include "../rtconfig.h"
/*
* Physical Memory layout:
*
* +---------+ <- CONFIG_MEM_TOTAL_SIZE
* | ...... | maybe zero
* +---------+ <- CONFIG_MEM_MMZ_BASE + CONFIG_MEM_MMZ_SIZE
* | |
* | |
* | |
* | |
* | |
* | |
* | |
* | |
* |---------| <- CONFIG_MEM_MMZ_BASE
* | ...... | maybe zero
* +---------+ <- CONFIG_MEM_RTSMART_SIZE
* | guard | MEM_GUARD_SIZE
* +---------+ <- End of Kerenl
* | |
* | |
* +---------+
* | heap | CONFIG_MEM_RTSMART_HEAP_SIZE
* +---------+
* | |
* +---------+ <- Beginning of Kernel <- mapping to KERNEL_VADDR_START + MEM_OPENSBI_SIZE
* | opensbi | MEM_OPENSBI_SIZE
* +---------+ <- Beginning of Physical Memory (0) <- mapping to KERNEL_VADDR_START
*/
#define MEM_OPENSBI_SIZE 0x20000 // 128K
#define MEM_GUARD_SIZE 0x1000 // 4K
/*
* The value of CONFIG_XXX may come from rtconfig.h. This is mainly for
* compatibility with compiling RT-Thread in the SDK environment and using
* the SDK configuration.
*
* If CONFIG_XXX is defined, it means that the value comes from the SDK
* configuration, otherwise the default configuration of bsp/k230 in RT-Thead
* is used. The default configuration of bsp/k230 is for the 01Studio CanMV
* development board that supports 512MB of memory.
*/
#ifndef CONFIG_MEM_TOTAL_SIZE
#define CONFIG_MEM_TOTAL_SIZE 0x20000000 // 512M
#endif
#ifndef CONFIG_MEM_RTSMART_SIZE
#define CONFIG_MEM_RTSMART_SIZE 0x10000000 // 256M
#endif
#ifndef CONFIG_MEM_RTSMART_HEAP_SIZE
#define CONFIG_MEM_RTSMART_HEAP_SIZE 0x2000000 // 32M
#endif
#ifndef CONFIG_MEM_MMZ_BASE
#define CONFIG_MEM_MMZ_BASE 0x10000000 // 512M
#endif
#ifndef CONFIG_MEM_MMZ_SIZE
#define CONFIG_MEM_MMZ_SIZE 0x10000000 // 256M
#endif
#define MEM_KERNEL_SIZE (CONFIG_MEM_RTSMART_SIZE - MEM_OPENSBI_SIZE - MEM_GUARD_SIZE)
#endif // MEMORY_LAYOUT_H__
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