1*7c478bd9Sstevel@tonic-gate /*
2*7c478bd9Sstevel@tonic-gate * CDDL HEADER START
3*7c478bd9Sstevel@tonic-gate *
4*7c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the
5*7c478bd9Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only
6*7c478bd9Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance
7*7c478bd9Sstevel@tonic-gate * with the License.
8*7c478bd9Sstevel@tonic-gate *
9*7c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*7c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
11*7c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions
12*7c478bd9Sstevel@tonic-gate * and limitations under the License.
13*7c478bd9Sstevel@tonic-gate *
14*7c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
15*7c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*7c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
17*7c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
18*7c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
19*7c478bd9Sstevel@tonic-gate *
20*7c478bd9Sstevel@tonic-gate * CDDL HEADER END
21*7c478bd9Sstevel@tonic-gate */
22*7c478bd9Sstevel@tonic-gate /*
23*7c478bd9Sstevel@tonic-gate * Copyright 1994-1996, 2002-2003 Sun Microsystems, Inc. All rights reserved.
24*7c478bd9Sstevel@tonic-gate * Use is subject to license terms.
25*7c478bd9Sstevel@tonic-gate */
26*7c478bd9Sstevel@tonic-gate
27*7c478bd9Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI"
28*7c478bd9Sstevel@tonic-gate
29*7c478bd9Sstevel@tonic-gate #include <sys/param.h>
30*7c478bd9Sstevel@tonic-gate #include <sys/vnode.h>
31*7c478bd9Sstevel@tonic-gate #include <sys/fs/ufs_fsdir.h>
32*7c478bd9Sstevel@tonic-gate #include <sys/fs/ufs_fs.h>
33*7c478bd9Sstevel@tonic-gate #include <sys/fs/ufs_inode.h>
34*7c478bd9Sstevel@tonic-gate #include <sys/sysmacros.h>
35*7c478bd9Sstevel@tonic-gate #include <sys/promif.h>
36*7c478bd9Sstevel@tonic-gate #include <sys/filep.h>
37*7c478bd9Sstevel@tonic-gate #include <sys/salib.h>
38*7c478bd9Sstevel@tonic-gate
39*7c478bd9Sstevel@tonic-gate static char prom_dev_type = 0;
40*7c478bd9Sstevel@tonic-gate
41*7c478bd9Sstevel@tonic-gate /*
42*7c478bd9Sstevel@tonic-gate * unix root slice offset for PROMS that do
43*7c478bd9Sstevel@tonic-gate * not know about fdisk partitions or Solaris
44*7c478bd9Sstevel@tonic-gate * slices.
45*7c478bd9Sstevel@tonic-gate * the default is 0 for machines with proms that
46*7c478bd9Sstevel@tonic-gate * do know how to interpret solaris slices.
47*7c478bd9Sstevel@tonic-gate */
48*7c478bd9Sstevel@tonic-gate unsigned long unix_startblk = 0;
49*7c478bd9Sstevel@tonic-gate
50*7c478bd9Sstevel@tonic-gate /*
51*7c478bd9Sstevel@tonic-gate * The various flavors of PROM make this grotesque.
52*7c478bd9Sstevel@tonic-gate */
53*7c478bd9Sstevel@tonic-gate int
diskread(fileid_t * filep)54*7c478bd9Sstevel@tonic-gate diskread(fileid_t *filep)
55*7c478bd9Sstevel@tonic-gate {
56*7c478bd9Sstevel@tonic-gate int err;
57*7c478bd9Sstevel@tonic-gate devid_t *devp;
58*7c478bd9Sstevel@tonic-gate uint_t blocknum;
59*7c478bd9Sstevel@tonic-gate
60*7c478bd9Sstevel@tonic-gate /* add in offset of root slice */
61*7c478bd9Sstevel@tonic-gate blocknum = filep->fi_blocknum + unix_startblk;
62*7c478bd9Sstevel@tonic-gate
63*7c478bd9Sstevel@tonic-gate devp = filep->fi_devp;
64*7c478bd9Sstevel@tonic-gate
65*7c478bd9Sstevel@tonic-gate err = prom_seek(devp->di_dcookie,
66*7c478bd9Sstevel@tonic-gate (unsigned long long)blocknum * (unsigned long long)DEV_BSIZE);
67*7c478bd9Sstevel@tonic-gate if (err == -1) {
68*7c478bd9Sstevel@tonic-gate printf("Seek error at block %x\n", blocknum);
69*7c478bd9Sstevel@tonic-gate return (-1);
70*7c478bd9Sstevel@tonic-gate }
71*7c478bd9Sstevel@tonic-gate
72*7c478bd9Sstevel@tonic-gate if ((err = prom_read(devp->di_dcookie, filep->fi_memp, filep->fi_count,
73*7c478bd9Sstevel@tonic-gate blocknum, prom_dev_type)) != filep->fi_count) {
74*7c478bd9Sstevel@tonic-gate printf("Short read. 0x%x chars read\n", err);
75*7c478bd9Sstevel@tonic-gate return (-1);
76*7c478bd9Sstevel@tonic-gate }
77*7c478bd9Sstevel@tonic-gate
78*7c478bd9Sstevel@tonic-gate return (0);
79*7c478bd9Sstevel@tonic-gate }
80