osfmk/vm/cpm.h

   1 /*
   2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. Please obtain a copy of the License at
  10  * http://www.opensource.apple.com/apsl/ and read it before using this
  11  * file.
  12  *
  13  * The Original Code and all software distributed under the License are
  14  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  15  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  16  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  18  * Please see the License for the specific language governing rights and
  19  * limitations under the License.
  20  *
  21  * @APPLE_LICENSE_HEADER_END@
  22  */
  23 /*
  24  * @OSF_COPYRIGHT@
  25  *
  26  */
  27
  28 #ifndef _VM_CPM_H_
  29 #define _VM_CPM_H_
  30
  31 /*
  32  *      File:   vm/cpm.h
  33  *      Author: Alan Langerman
  34  *      Date:   April 1995 and January 1996
  35  *
  36  *      Contiguous physical memory allocator.
  37  */
  38
  39 #include <mach_kdb.h>
  40 #include <mach_counters.h>
  41
  42 #include <mach/mach_types.h>
  43 #include <vm/vm_page.h>
  44 /*
  45  *      Return a linked list of physically contiguous
  46  *      wired pages.  Caller is responsible for disposal
  47  *      via cpm_release.
  48  *
  49  *      These pages are all in "gobbled" state when .
  50  */
  51 extern kern_return_t
  52         cpm_allocate(vm_size_t size, vm_page_t *list, boolean_t wire);
  53
  54 /*
  55  *      CPM-specific event counters.
  56  */
  57 #define VM_CPM_COUNTERS         (MACH_KDB && MACH_COUNTERS && VM_CPM)
  58 #if     VM_CPM_COUNTERS
  59 #define cpm_counter(foo)        foo
  60 #else   /* VM_CPM_COUNTERS */
  61 #define cpm_counter(foo)
  62 #endif  /* VM_CPM_COUNTERS */
  63
  64 #endif  /* _VM_CPM_H_ */