1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License"). You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22 /*
23 * Copyright (c) 1994, by Sun Microsystems, Inc.
24 * All rights reserved.
25 */
26
27 #pragma ident "%Z%%M% %I% %E% SMI"
28
29 #include <sys/promif.h>
30 #include <sys/promimpl.h>
31
32 /*
33 * Allocate retained physical memory
34 * Returns 0: Success; Non-zero: failure.
35 * Returns *phys_hi, *phys_lo only if successful.
36 */
37 int
prom_retain(char * id,size_t size,u_int align,unsigned long long * physaddr)38 prom_retain(char *id, size_t size, u_int align, unsigned long long *physaddr)
39 {
40 cell_t ci[11];
41 int rv;
42 ihandle_t imemory = prom_memory_ihandle();
43
44 if ((imemory == (ihandle_t)-1))
45 return (-1);
46
47 ci[0] = p1275_ptr2cell("call-method"); /* Service name */
48 ci[1] = (cell_t)5; /* #argument cells */
49 ci[2] = (cell_t)3; /* #result cells */
50 ci[3] = p1275_ptr2cell("SUNW,retain"); /* Arg1: Method name */
51 ci[4] = p1275_ihandle2cell(imemory); /* Arg2: memory ihandle */
52 ci[5] = p1275_uint2cell(align); /* Arg2: SA1: align */
53 ci[6] = p1275_size2cell(size); /* Arg3: SA2: size */
54 ci[7] = p1275_ptr2cell(id); /* Arg4: SA3: id name */
55
56 promif_preprom();
57 rv = p1275_cif_handler(&ci);
58 promif_postprom();
59
60 if (rv != 0)
61 return (rv); /* Service "call-method" failed */
62 if (ci[8] != 0) /* Res1: catch-result */
63 return (-1); /* Method "SUNW,retain" failed */
64
65 *physaddr = p1275_cells2ull(ci[9], ci[10]);
66 /* Res3: base.hi, Res4: base.lo */
67 return (0);
68 }
69