1/*	$NetBSD: kvm_or1k.c,v 1.3 2023/08/23 14:00:11 rin Exp $	*/
2
3/*-
4 * Copyright (c) 2014 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Matt Thomas of 3am Software Foundry.
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/*
33 * OR1K machine dependent routines for kvm.
34 */
35
36#include <sys/param.h>
37#include <sys/exec.h>
38#include <sys/types.h>
39
40#include <uvm/uvm_extern.h>
41
42#include <db.h>
43#include <limits.h>
44#include <kvm.h>
45#include <stdlib.h>
46#include <unistd.h>
47
48#include "kvm_private.h"
49
50#include <sys/kcore.h>
51#include <machine/kcore.h>
52#include <machine/vmparam.h>
53
54__RCSID("$NetBSD: kvm_or1k.c,v 1.3 2023/08/23 14:00:11 rin Exp $");
55
56void
57_kvm_freevtop(kvm_t *kd)
58{
59	if (kd->vmst != 0)
60		free(kd->vmst);
61}
62
63/*ARGSUSED*/
64int
65_kvm_initvtop(kvm_t *kd)
66{
67
68	return 0;
69}
70
71/*
72 * Translate a KVA to a PA
73 */
74int
75_kvm_kvatop(kvm_t *kd, vaddr_t va, paddr_t *pa)
76{
77//	cpu_kcore_hdr_t	*cpu_kh;
78
79	if (ISALIVE(kd)) {
80		_kvm_err(kd, 0, "vatop called in live kernel!");
81		return 0;
82	}
83
84	/* No hit -- no translation */
85	*pa = (u_long)~0UL;
86	return 0;
87}
88
89off_t
90_kvm_pa2off(kvm_t *kd, paddr_t pa)
91{
92	cpu_kcore_hdr_t	*cpu_kh;
93	phys_ram_seg_t	*ram;
94	off_t		off;
95	void		*e;
96
97	cpu_kh = kd->cpu_data;
98	e = (char *) kd->cpu_data + kd->cpu_dsize;
99	ram = (void *)((char *)(void *)cpu_kh + ALIGN(sizeof *cpu_kh));
100	off = kd->dump_off;
101	do {
102		if (pa >= ram->start && (pa - ram->start) < ram->size) {
103			return off + (pa - ram->start);
104		}
105		ram++;
106		off += ram->size;
107	} while ((void *) ram < e && ram->size);
108
109	_kvm_err(kd, 0, "pa2off failed for pa %#" PRIxPADDR "\n", pa);
110	return (off_t) -1;
111}
112
113/*
114 * Machine-dependent initialization for ALL open kvm descriptors,
115 * not just those for a kernel crash dump.  Some architectures
116 * have to deal with these NOT being constants!  (i.e. m68k)
117 */
118int
119_kvm_mdopen(kvm_t *kd)
120{
121	kd->min_uva = VM_MIN_ADDRESS;
122	kd->max_uva = VM_MAXUSER_ADDRESS;
123
124	return (0);
125}
126