haiku/headers/private/kernel/arch/riscv64/arch_kernel_args.h
Alexander von Gluck IV d637e0bec1 system/kernel: Rework uart management
Change-Id: I6cb31760519c8ba4542d217d6e68439602eda558
Reviewed-on: https://review.haiku-os.org/c/haiku/+/4356
Reviewed-by: Jessica Hamilton <jessica.l.hamilton@gmail.com>
Reviewed-by: Alex von Gluck IV <kallisti5@unixzen.com>
2021-08-20 03:03:25 +00:00

56 lines
1.1 KiB
C

/*
** Copyright 2003, Axel Dörfler, axeld@pinc-software.de. All rights reserved.
** Distributed under the terms of the MIT License.
*/
#ifndef KERNEL_ARCH_RISCV64_KERNEL_ARGS_H
#define KERNEL_ARCH_RISCV64_KERNEL_ARGS_H
#ifndef KERNEL_BOOT_KERNEL_ARGS_H
# error This file is included from <boot/kernel_args.h> only
#endif
#include <util/FixedWidthPointer.h>
#include <boot/uart.h>
#define _PACKED __attribute__((packed))
#define MAX_VIRTUAL_RANGES_TO_KEEP 32
enum {
kPlatformNone,
kPlatformMNative,
kPlatformSbi,
};
// kernel args
typedef struct {
// Virtual address range of RAM physical memory mapping region
addr_range physMap;
// The virtual ranges we want to keep in the kernel.
uint32 num_virtual_ranges_to_keep;
addr_range virtual_ranges_to_keep[MAX_VIRTUAL_RANGES_TO_KEEP];
// MNative hooks, or SBI
uint32 machine_platform;
uint bootHart;
uint64 timerFrequency; // in Hz
// All following address are virtual
FixedWidthPointer<void> acpi_root;
FixedWidthPointer<void> fdt;
addr_range htif;
addr_range plic;
addr_range clint;
uart_info uart;
} _PACKED arch_kernel_args;
#endif /* KERNEL_ARCH_RISCV64_KERNEL_ARGS_H */