prom_mem.c (7c478bd9) prom_mem.c (986fd29a)
1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
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.
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance 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/*
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21/*
23 * Copyright (c) 1991-1994, by Sun Microsystems, Inc.
24 * All rights reserved.
22 * Copyright 2007 Sun Microsystems, Inc. All rights reserved.
23 * Use is subject to license terms.
25 */
26
27#pragma ident "%Z%%M% %I% %E% SMI"
28
29/*
30 * This file contains platform-dependent memory support routines,
31 * suitable for memory methods with 2-cell physical addresses.
32 * Use of these routines makes the caller platform-dependent,

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57 * Allocate physical memory, unmapped and possibly aligned.
58 * Returns 0: Success; Non-zero: failure.
59 * Returns *physaddr only if successful.
60 *
61 * This routine is suitable for platforms with 2-cell physical addresses
62 * and a single size cell in the "memory" node.
63 */
64int
24 */
25
26#pragma ident "%Z%%M% %I% %E% SMI"
27
28/*
29 * This file contains platform-dependent memory support routines,
30 * suitable for memory methods with 2-cell physical addresses.
31 * Use of these routines makes the caller platform-dependent,

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56 * Allocate physical memory, unmapped and possibly aligned.
57 * Returns 0: Success; Non-zero: failure.
58 * Returns *physaddr only if successful.
59 *
60 * This routine is suitable for platforms with 2-cell physical addresses
61 * and a single size cell in the "memory" node.
62 */
63int
65prom_allocate_phys(size_t size, u_int align, unsigned long long *physaddr)
64prom_allocate_phys(size_t size, uint_t align, unsigned long long *physaddr)
66{
67 cell_t ci[10];
68 int rv;
69 ihandle_t imemory = prom_memory_ihandle();
70
71 if ((imemory == (ihandle_t)-1))
72 return (-1);
73
74 if (align == 0)
65{
66 cell_t ci[10];
67 int rv;
68 ihandle_t imemory = prom_memory_ihandle();
69
70 if ((imemory == (ihandle_t)-1))
71 return (-1);
72
73 if (align == 0)
75 align = (u_int)1;
74 align = (uint_t)1;
76
77 ci[0] = p1275_ptr2cell("call-method"); /* Service name */
78 ci[1] = (cell_t)4; /* #argument cells */
79 ci[2] = (cell_t)3; /* #result cells */
80 ci[3] = p1275_ptr2cell("claim"); /* Arg1: Method name */
81 ci[4] = p1275_ihandle2cell(imemory); /* Arg2: memory ihandle */
82 ci[5] = p1275_uint2cell(align); /* Arg3: SA1: align */
83 ci[6] = p1275_size2cell(size); /* Arg4: SA2: size */

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157 ci[5] = p1275_size2cell(size); /* Arg3: SA1: size */
158 ci[6] = p1275_ull2cell_high(physaddr); /* Arg4: SA2: phys.hi */
159 ci[7] = p1275_ull2cell_low(physaddr); /* Arg5: SA3: phys.lo */
160
161 promif_preprom();
162 (void) p1275_cif_handler(&ci);
163 promif_postprom();
164}
75
76 ci[0] = p1275_ptr2cell("call-method"); /* Service name */
77 ci[1] = (cell_t)4; /* #argument cells */
78 ci[2] = (cell_t)3; /* #result cells */
79 ci[3] = p1275_ptr2cell("claim"); /* Arg1: Method name */
80 ci[4] = p1275_ihandle2cell(imemory); /* Arg2: memory ihandle */
81 ci[5] = p1275_uint2cell(align); /* Arg3: SA1: align */
82 ci[6] = p1275_size2cell(size); /* Arg4: SA2: size */

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156 ci[5] = p1275_size2cell(size); /* Arg3: SA1: size */
157 ci[6] = p1275_ull2cell_high(physaddr); /* Arg4: SA2: phys.hi */
158 ci[7] = p1275_ull2cell_low(physaddr); /* Arg5: SA3: phys.lo */
159
160 promif_preprom();
161 (void) p1275_cif_handler(&ci);
162 promif_postprom();
163}
164
165static pnode_t
166prom_mem_phandle(void)
167{
168 static pnode_t pmem = 0;
169
170 if (pmem == (pnode_t)0) {
171 ihandle_t ih;
172
173 if ((ih = prom_memory_ihandle()) == (ihandle_t)-1)
174 prom_panic("Can't get memory ihandle");
175 pmem = prom_getphandle(ih);
176 }
177 return (pmem);
178}
179
180
181int
182prom_phys_installed_len(void)
183{
184 return (prom_getproplen(prom_mem_phandle(), "reg"));
185}
186
187int
188prom_phys_avail_len(void)
189{
190 return (prom_getproplen(prom_mem_phandle(), "available"));
191}
192
193int
194prom_phys_installed(caddr_t prop)
195{
196 return (prom_getprop(prom_mem_phandle(), "reg", prop));
197}
198
199int
200prom_phys_avail(caddr_t prop)
201{
202 return (prom_getprop(prom_mem_phandle(), "available", prop));
203}