xref: /illumos-gate/usr/src/uts/common/os/rmap.c (revision 2d6eb4a5)
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 #include <sys/param.h>
28 #include <sys/vmem.h>
29 #include <sys/cmn_err.h>
30 
31 /* ARGSUSED */
32 void *
rmallocmap(size_t mapsize)33 rmallocmap(size_t mapsize)
34 {
35 	return (vmem_create("rmap", NULL, 0, 1, NULL, NULL, NULL, 0,
36 	    VM_NOSLEEP));
37 }
38 
39 /* ARGSUSED */
40 void *
rmallocmap_wait(size_t mapsize)41 rmallocmap_wait(size_t mapsize)
42 {
43 	return (vmem_create("rmap", NULL, 0, 1, NULL, NULL, NULL, 0, VM_SLEEP));
44 }
45 
46 void
rmfreemap(void * mp)47 rmfreemap(void *mp)
48 {
49 	vmem_destroy(mp);
50 }
51 
52 ulong_t
rmalloc(void * mp,size_t size)53 rmalloc(void *mp, size_t size)
54 {
55 	return ((ulong_t)vmem_alloc(mp, size, VM_NOSLEEP));
56 }
57 
58 ulong_t
rmalloc_wait(void * mp,size_t size)59 rmalloc_wait(void *mp, size_t size)
60 {
61 	return ((ulong_t)vmem_alloc(mp, size, VM_SLEEP));
62 }
63 
64 void
rmfree(void * mp,size_t size,ulong_t addr)65 rmfree(void *mp, size_t size, ulong_t addr)
66 {
67 	if (vmem_contains(mp, (void *)addr, size))
68 		vmem_free(mp, (void *)addr, size);
69 	else if (vmem_add(mp, (void *)addr, size, VM_NOSLEEP) == NULL)
70 		cmn_err(CE_WARN, "rmfree(%p, %lu, %lu): cannot add segment",
71 		    mp, size, addr);
72 }
73