xref: /illumos-gate/usr/src/uts/common/os/rmap.c (revision 55d6cb5d63bcf69dfa47b8c41c770a2d34f169b0)
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) 1999 by Sun Microsystems, Inc.
24  * All rights reserved.
25  */
26 
27 #pragma ident	"%Z%%M%	%I%	%E% SMI"
28 
29 #include <sys/param.h>
30 #include <sys/vmem.h>
31 #include <sys/cmn_err.h>
32 
33 /* ARGSUSED */
34 void *
35 rmallocmap(size_t mapsize)
36 {
37 	return (vmem_create("rmap", NULL, 0, 1, NULL, NULL, NULL, 0,
38 	    VM_NOSLEEP));
39 }
40 
41 /* ARGSUSED */
42 void *
43 rmallocmap_wait(size_t mapsize)
44 {
45 	return (vmem_create("rmap", NULL, 0, 1, NULL, NULL, NULL, 0, VM_SLEEP));
46 }
47 
48 void
49 rmfreemap(void *mp)
50 {
51 	vmem_destroy(mp);
52 }
53 
54 ulong_t
55 rmalloc(void *mp, size_t size)
56 {
57 	return ((ulong_t)vmem_alloc(mp, size, VM_NOSLEEP));
58 }
59 
60 ulong_t
61 rmalloc_wait(void *mp, size_t size)
62 {
63 	return ((ulong_t)vmem_alloc(mp, size, VM_SLEEP));
64 }
65 
66 void
67 rmfree(void *mp, size_t size, ulong_t addr)
68 {
69 	if (vmem_contains(mp, (void *)addr, size))
70 		vmem_free(mp, (void *)addr, size);
71 	else if (vmem_add(mp, (void *)addr, size, VM_NOSLEEP) == NULL)
72 		cmn_err(CE_WARN, "rmfree(%p, %lu, %lu): cannot add segment",
73 		    mp, size, addr);
74 }
75