372b901dfe
* We really should get out of the habbit of making up our own architecture defines. * __riscv with an additional __riscv_xlen is the standard that developed... let's just roll with it. Change-Id: Ieb777d48340ae25a6d66f66133afa0ec5c6da9b6 Reviewed-on: https://review.haiku-os.org/c/haiku/+/4402 Tested-by: Commit checker robot <no-reply+buildbot@haiku-os.org> Reviewed-by: waddlesplash <waddlesplash@gmail.com>
43 lines
1.2 KiB
C
43 lines
1.2 KiB
C
/*
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* Copyright 2001-2002, Travis Geiselbrecht. All rights reserved.
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* Distributed under the terms of the NewOS License.
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*/
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#ifndef _KERNEL_ARCH_RISCV64_KERNEL_H
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#define _KERNEL_ARCH_RISCV64_KERNEL_H
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#ifndef _ASSEMBLER
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#ifdef __cplusplus
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# include <arch/cpu.h>
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#endif
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#endif
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// memory layout
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#define KERNEL_LOAD_BASE 0x80000000
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#define KERNEL_LOAD_BASE_64_BIT 0xffffffc000000000
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#if (defined(__riscv) && __riscv_xlen == 64)
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// Base of the kernel address space.
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#define KERNEL_BASE 0xffffffc000000000
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#define KERNEL_SIZE 0x0000004000000000
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#define KERNEL_TOP (KERNEL_BASE + (KERNEL_SIZE - 1))
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// Userspace address space layout.
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#define USER_BASE (0x0000000000000000 + 0x1000)
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#define USER_BASE_ANY USER_BASE
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#define USER_TOP (0x0000004000000000 - 1)
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#define USER_SIZE (USER_TOP - USER_BASE + 1)
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#define KERNEL_USER_DATA_BASE (USER_BASE + 0x3000000000)
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#define USER_STACK_REGION (USER_BASE + 0x3000000000)
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#define USER_STACK_REGION_SIZE ((USER_TOP - USER_STACK_REGION) + 1)
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#else /* ! riscv64 */
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#warning Unknown RISC-V Architecture!
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#endif
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#endif /* _KERNEL_ARCH_RISCV64_KERNEL_H */
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