machdep.h revision 1.4 
1/*	$NetBSD: machdep.h,v 1.4 2023/05/07 12:41:48 skrll Exp $	*/
2
3/*-
4 * Copyright (c) 2022 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Nick Hudson
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#ifndef _RISCV_MACHDEP_H_
33#define _RISCV_MACHDEP_H_
34
35#include <sys/cdefs.h>
36__KERNEL_RCSID(0, "$NetBSD: machdep.h,v 1.4 2023/05/07 12:41:48 skrll Exp $");
37
38#include <sys/proc.h>
39#include <sys/lwp.h>
40#include <sys/siginfo.h>
41
42static inline paddr_t
43riscv_kern_vtophys(vaddr_t va)
44{
45	extern unsigned long kern_vtopdiff;
46
47	return va - kern_vtopdiff;
48}
49
50static inline vaddr_t
51riscv_kern_phystov(paddr_t pa)
52{
53	extern unsigned long kern_vtopdiff;
54
55	return pa + kern_vtopdiff;
56}
57
58#define KERN_VTOPHYS(va)	riscv_kern_vtophys((vaddr_t)va)
59#define KERN_PHYSTOV(pa)	riscv_kern_phystov((paddr_t)pa)
60
61extern	paddr_t physical_start;
62extern	paddr_t physical_end;
63
64void	uartputc(int);
65int	uartgetc(void);
66
67paddr_t	init_mmu(paddr_t);
68void	init_riscv(register_t, paddr_t);
69
70void	riscv_timer_frequency_set(uint32_t);	// which header?
71void	riscv_timer_register(void (*timerfn)(void));
72void	riscv_intr_set_handler(void (*intr_handler)(struct trapframe *,
73	    register_t, register_t, register_t));
74
75int	riscv_timer_intr(void *arg);
76
77void	cpus_fdt_md_attach(device_t, device_t, void *);
78
79void    pt_dump(void (*)(const char *, ...));
80
81
82#endif	/* _RISCV_MACHDEP_H_ */
83