xref: /titanic_52/usr/src/uts/common/os/rmap.c (revision 7c478bd95313f5f23a4c958a745db2134aa03244)
1*7c478bd9Sstevel@tonic-gate /*
2*7c478bd9Sstevel@tonic-gate  * CDDL HEADER START
3*7c478bd9Sstevel@tonic-gate  *
4*7c478bd9Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*7c478bd9Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
6*7c478bd9Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
7*7c478bd9Sstevel@tonic-gate  * with the License.
8*7c478bd9Sstevel@tonic-gate  *
9*7c478bd9Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*7c478bd9Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
11*7c478bd9Sstevel@tonic-gate  * See the License for the specific language governing permissions
12*7c478bd9Sstevel@tonic-gate  * and limitations under the License.
13*7c478bd9Sstevel@tonic-gate  *
14*7c478bd9Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
15*7c478bd9Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*7c478bd9Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
17*7c478bd9Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
18*7c478bd9Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
19*7c478bd9Sstevel@tonic-gate  *
20*7c478bd9Sstevel@tonic-gate  * CDDL HEADER END
21*7c478bd9Sstevel@tonic-gate  */
22*7c478bd9Sstevel@tonic-gate /*
23*7c478bd9Sstevel@tonic-gate  * Copyright (c) 1999 by Sun Microsystems, Inc.
24*7c478bd9Sstevel@tonic-gate  * All rights reserved.
25*7c478bd9Sstevel@tonic-gate  */
26*7c478bd9Sstevel@tonic-gate 
27*7c478bd9Sstevel@tonic-gate #pragma ident	"%Z%%M%	%I%	%E% SMI"
28*7c478bd9Sstevel@tonic-gate 
29*7c478bd9Sstevel@tonic-gate #include <sys/param.h>
30*7c478bd9Sstevel@tonic-gate #include <sys/vmem.h>
31*7c478bd9Sstevel@tonic-gate #include <sys/cmn_err.h>
32*7c478bd9Sstevel@tonic-gate 
33*7c478bd9Sstevel@tonic-gate /* ARGSUSED */
34*7c478bd9Sstevel@tonic-gate void *
35*7c478bd9Sstevel@tonic-gate rmallocmap(size_t mapsize)
36*7c478bd9Sstevel@tonic-gate {
37*7c478bd9Sstevel@tonic-gate 	return (vmem_create("rmap", NULL, 0, 1, NULL, NULL, NULL, 0,
38*7c478bd9Sstevel@tonic-gate 	    VM_NOSLEEP));
39*7c478bd9Sstevel@tonic-gate }
40*7c478bd9Sstevel@tonic-gate 
41*7c478bd9Sstevel@tonic-gate /* ARGSUSED */
42*7c478bd9Sstevel@tonic-gate void *
43*7c478bd9Sstevel@tonic-gate rmallocmap_wait(size_t mapsize)
44*7c478bd9Sstevel@tonic-gate {
45*7c478bd9Sstevel@tonic-gate 	return (vmem_create("rmap", NULL, 0, 1, NULL, NULL, NULL, 0, VM_SLEEP));
46*7c478bd9Sstevel@tonic-gate }
47*7c478bd9Sstevel@tonic-gate 
48*7c478bd9Sstevel@tonic-gate void
49*7c478bd9Sstevel@tonic-gate rmfreemap(void *mp)
50*7c478bd9Sstevel@tonic-gate {
51*7c478bd9Sstevel@tonic-gate 	vmem_destroy(mp);
52*7c478bd9Sstevel@tonic-gate }
53*7c478bd9Sstevel@tonic-gate 
54*7c478bd9Sstevel@tonic-gate ulong_t
55*7c478bd9Sstevel@tonic-gate rmalloc(void *mp, size_t size)
56*7c478bd9Sstevel@tonic-gate {
57*7c478bd9Sstevel@tonic-gate 	return ((ulong_t)vmem_alloc(mp, size, VM_NOSLEEP));
58*7c478bd9Sstevel@tonic-gate }
59*7c478bd9Sstevel@tonic-gate 
60*7c478bd9Sstevel@tonic-gate ulong_t
61*7c478bd9Sstevel@tonic-gate rmalloc_wait(void *mp, size_t size)
62*7c478bd9Sstevel@tonic-gate {
63*7c478bd9Sstevel@tonic-gate 	return ((ulong_t)vmem_alloc(mp, size, VM_SLEEP));
64*7c478bd9Sstevel@tonic-gate }
65*7c478bd9Sstevel@tonic-gate 
66*7c478bd9Sstevel@tonic-gate void
67*7c478bd9Sstevel@tonic-gate rmfree(void *mp, size_t size, ulong_t addr)
68*7c478bd9Sstevel@tonic-gate {
69*7c478bd9Sstevel@tonic-gate 	if (vmem_contains(mp, (void *)addr, size))
70*7c478bd9Sstevel@tonic-gate 		vmem_free(mp, (void *)addr, size);
71*7c478bd9Sstevel@tonic-gate 	else if (vmem_add(mp, (void *)addr, size, VM_NOSLEEP) == NULL)
72*7c478bd9Sstevel@tonic-gate 		cmn_err(CE_WARN, "rmfree(%p, %lu, %lu): cannot add segment",
73*7c478bd9Sstevel@tonic-gate 		    mp, size, addr);
74*7c478bd9Sstevel@tonic-gate }
75