osfmk/kern/host_statistics.h

   1 /*
   2  * Copyright (c) 2000-2009 Apple Inc. All rights reserved.
   3  *
   4  * @APPLE_OSREFERENCE_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. The rights granted to you under the License
  10  * may not be used to create, or enable the creation or redistribution of,
  11  * unlawful or unlicensed copies of an Apple operating system, or to
  12  * circumvent, violate, or enable the circumvention or violation of, any
  13  * terms of an Apple operating system software license agreement.
  14  *
  15  * Please obtain a copy of the License at
  16  * http://www.opensource.apple.com/apsl/ and read it before using this file.
  17  *
  18  * The Original Code and all software distributed under the License are
  19  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  20  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  21  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  22  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  23  * Please see the License for the specific language governing rights and
  24  * limitations under the License.
  25  *
  26  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  27  */
  28 /*
  29  * @OSF_COPYRIGHT@
  30  */
  31 /*
  32  *      kern/host_statistics.h
  33  *
  34  *      Definitions for host VM/event statistics data structures.
  35  *
  36  */
  37
  38 #ifndef _KERN_HOST_STATISTICS_H_
  39 #define _KERN_HOST_STATISTICS_H_
  40
  41 #include <libkern/OSAtomic.h>
  42 #include <mach/vm_statistics.h>
  43 #include <kern/percpu.h>
  44 #include <os/atomic_private.h>
  45
  46 extern
  47 uint64_t get_pages_grabbed_count(void);
  48
  49 PERCPU_DECL(vm_statistics64_data_t, vm_stat);
  50 PERCPU_DECL(uint64_t, vm_page_grab_count);
  51
  52 #define VM_STAT_INCR(event)                                             \
  53 MACRO_BEGIN                                                             \
  54         os_atomic_inc(&PERCPU_GET(vm_stat)->event, relaxed);            \
  55 MACRO_END
  56
  57 #define VM_STAT_INCR_BY(event, amount)                                  \
  58 MACRO_BEGIN                                                             \
  59         os_atomic_add(&PERCPU_GET(vm_stat)->event, amount, relaxed);    \
  60 MACRO_END
  61
  62 #endif  /* _KERN_HOST_STATISTICS_H_ */