ofw_memory.c revision 329183 
1/*-
2 * Copyright (c) 2001 Benno Rice
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY Benno Rice ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27#include <sys/cdefs.h>
28__FBSDID("$FreeBSD: stable/11/stand/ofw/libofw/ofw_memory.c 329183 2018-02-12 20:51:28Z kevans $");
29
30#include <sys/param.h>
31#include <sys/types.h>
32
33#include <stand.h>
34
35#include "libofw.h"
36#include "openfirm.h"
37
38struct ofw_mapping {
39        vm_offset_t     va;
40        int             len;
41        vm_offset_t     pa;
42        int             mode;
43};
44
45struct ofw_mapping2 {
46        vm_offset_t     va;
47        int             len;
48        vm_offset_t     pa_hi;
49        vm_offset_t     pa_lo;
50        int             mode;
51};
52
53void
54ofw_memmap(int acells)
55{
56	struct		ofw_mapping *mapptr;
57	struct		ofw_mapping2 *mapptr2;
58        phandle_t	mmup;
59        int		nmapping, i;
60        u_char		mappings[256 * sizeof(struct ofw_mapping2)];
61        char		lbuf[80];
62
63	mmup = OF_instance_to_package(mmu);
64
65	bzero(mappings, sizeof(mappings));
66
67	nmapping = OF_getprop(mmup, "translations", mappings, sizeof(mappings));
68	if (nmapping == -1) {
69		printf("Could not get memory map (%d)\n",
70		    nmapping);
71		return;
72	}
73
74	pager_open();
75	if (acells == 1) {
76		nmapping /= sizeof(struct ofw_mapping);
77		mapptr = (struct ofw_mapping *) mappings;
78
79		printf("%17s\t%17s\t%8s\t%6s\n", "Virtual Range",
80		    "Physical Range", "#Pages", "Mode");
81
82		for (i = 0; i < nmapping; i++) {
83			sprintf(lbuf, "%08x-%08x\t%08x-%08x\t%8d\t%6x\n",
84				mapptr[i].va,
85				mapptr[i].va + mapptr[i].len,
86				mapptr[i].pa,
87				mapptr[i].pa + mapptr[i].len,
88				mapptr[i].len / 0x1000,
89				mapptr[i].mode);
90			if (pager_output(lbuf))
91				break;
92		}
93	} else {
94		nmapping /= sizeof(struct ofw_mapping2);
95		mapptr2 = (struct ofw_mapping2 *) mappings;
96
97		printf("%17s\t%17s\t%8s\t%6s\n", "Virtual Range",
98		       "Physical Range", "#Pages", "Mode");
99
100		for (i = 0; i < nmapping; i++) {
101			sprintf(lbuf, "%08x-%08x\t%08x-%08x\t%8d\t%6x\n",
102				mapptr2[i].va,
103				mapptr2[i].va + mapptr2[i].len,
104				mapptr2[i].pa_lo,
105				mapptr2[i].pa_lo + mapptr2[i].len,
106				mapptr2[i].len / 0x1000,
107				mapptr2[i].mode);
108			if (pager_output(lbuf))
109				break;
110		}
111	}
112	pager_close();
113}
114
115