1 /* 2 * Copyright 2001-2002, Travis Geiselbrecht. All rights reserved. 3 * Distributed under the terms of the NewOS License. 4 */ 5 #ifndef _KERNEL_ARCH_RISCV64_KERNEL_H 6 #define _KERNEL_ARCH_RISCV64_KERNEL_H 7 8 9 #ifndef _ASSEMBLER 10 #ifdef __cplusplus 11 # include <arch/cpu.h> 12 #endif 13 #endif 14 15 16 // memory layout 17 #define KERNEL_LOAD_BASE 0x80000000 18 #define KERNEL_LOAD_BASE_64_BIT 0xffffffc000000000 19 20 21 #if defined(__riscv64__) 22 23 // Base of the kernel address space. 24 #define KERNEL_BASE 0xffffffc000000000 25 #define KERNEL_SIZE 0x0000004000000000 26 #define KERNEL_TOP (KERNEL_BASE + (KERNEL_SIZE - 1)) 27 28 // Userspace address space layout. 29 #define USER_BASE (0x0000000000000000 + 0x1000) 30 #define USER_BASE_ANY USER_BASE 31 #define USER_TOP (0x0000004000000000 - 1) 32 #define USER_SIZE (USER_TOP - USER_BASE + 1) 33 34 #define KERNEL_USER_DATA_BASE (USER_BASE + 0x3000000000) 35 #define USER_STACK_REGION (USER_BASE + 0x3000000000) 36 #define USER_STACK_REGION_SIZE ((USER_TOP - USER_STACK_REGION) + 1) 37 38 #else /* ! __riscv64__ */ 39 #warning Unknown RISC-V Architecture! 40 #endif 41 42 #endif /* _KERNEL_ARCH_RISCV64_KERNEL_H */ 43