kernel/os/rmap.c

   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 }