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 2005 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27 #pragma ident "%Z%%M% %I% %E% SMI"
28
29 #include <sys/types.h>
30 #include <sys/saio.h>
31 #include <sys/sysmacros.h>
32 #include <sys/promif.h>
33 #include <sys/bootconf.h>
34 #include <sys/salib.h>
35
36 #ifdef DEBUG
37 static int resalloc_debug = 1;
38 #else /* DEBUG */
39 static int resalloc_debug = 0;
40 #endif /* DEBUG */
41 #define dprintf if (resalloc_debug) printf
42
43 extern caddr_t resalloc(enum RESOURCES type,
44 size_t bytes, caddr_t virthint, int align);
45 extern void resfree(enum RESOURCES type,
46 caddr_t virtaddr, size_t bytes);
47
48 caddr_t memlistpage;
49 extern int pagesize;
50
51 /*
52 * This routine should be called get_a_page().
53 * It allocates from the appropriate entity one or
54 * more pages and maps them in.
55 */
56
57 caddr_t
kern_resalloc(caddr_t virthint,size_t size,int align)58 kern_resalloc(caddr_t virthint, size_t size, int align)
59 {
60 if (virthint != 0)
61 return (resalloc(RES_CHILDVIRT, size, virthint, align));
62 else {
63 return (resalloc(RES_BOOTSCRATCH, size, NULL, NULL));
64 }
65 }
66
67 /*
68 * This is called only on sparcv9 for freeing scratch memory.
69 * The standalone allocator cannot free other types of memory.
70 */
71 void
kern_resfree(caddr_t virtaddr,size_t size)72 kern_resfree(caddr_t virtaddr, size_t size)
73 {
74 resfree(RES_BOOTSCRATCH, virtaddr, size);
75 }
76
77 int
get_progmemory(caddr_t vaddr,size_t size,int align)78 get_progmemory(caddr_t vaddr, size_t size, int align)
79 {
80 uintptr_t n;
81
82 /*
83 * if the vaddr given is not a mult of PAGESIZE,
84 * then we rounddown to a page, but keep the same
85 * ending addr.
86 */
87 n = (uintptr_t)vaddr & (pagesize - 1);
88 if (n) {
89 vaddr -= n;
90 size += n;
91 }
92
93 dprintf("get_progmemory: requesting %lx bytes at %p\n", size,
94 (void *)vaddr);
95 if (resalloc(RES_CHILDVIRT, size, vaddr, align) != vaddr)
96 return (-1);
97 return (0);
98 }
99