osfmk/kern/processor_data.h

   1 /*
   2  * Copyright (c) 2003 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_OSREFERENCE_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
  10  * License may not be used to create, or enable the creation or
  11  * redistribution of, unlawful or unlicensed copies of an Apple operating
  12  * system, or to circumvent, violate, or enable the circumvention or
  13  * violation of, any terms of an Apple operating system software license
  14  * agreement.
  15  *
  16  * Please obtain a copy of the License at
  17  * http://www.opensource.apple.com/apsl/ and read it before using this
  18  * file.
  19  *
  20  * The Original Code and all software distributed under the License are
  21  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  22  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  23  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  24  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  25  * Please see the License for the specific language governing rights and
  26  * limitations under the License.
  27  *
  28  * @APPLE_LICENSE_OSREFERENCE_HEADER_END@
  29  */
  30 /*
  31  * Machine independent per processor data.
  32  */
  33
  34 #ifndef _KERN_PROCESSOR_DATA_H_
  35 #define _KERN_PROCESSOR_DATA_H_
  36
  37 /*
  38  * #include kern/processor.h instead of this file.
  39  */
  40
  41 #ifdef MACH_KERNEL_PRIVATE
  42
  43 #include <ipc/ipc_kmsg.h>
  44 #include <kern/timer.h>
  45
  46 struct processor_data {
  47         /* Processor state statistics */
  48         integer_t                               cpu_ticks[CPU_STATE_MAX];
  49
  50 #if !STAT_TIME
  51         /* Current execution timer */
  52         timer_t                                 current_timer;
  53         timer_data_t                    offline_timer;
  54 #endif  /* STAT_TIME */
  55
  56         /* Kernel stack cache */
  57         struct stack_cache {
  58                 vm_offset_t                             free;
  59                 unsigned int                    count;
  60         }                                               stack_cache;
  61
  62         /* Pending timer callouts */
  63         queue_head_t                    timer_call_queue;
  64
  65         /* VM event counters */
  66         vm_statistics_data_t    vm_stat;
  67
  68         /* IPC free message cache */
  69         struct ikm_cache {
  70 #define IKM_STASH       16
  71                 ipc_kmsg_t                              entries[IKM_STASH];
  72                 unsigned int                    avail;
  73         }                                               ikm_cache;
  74
  75         int                                             slot_num;
  76 };
  77
  78 typedef struct processor_data   processor_data_t;
  79
  80 #define PROCESSOR_DATA(processor, member)       \
  81                                         (processor)->processor_data.member
  82
  83 extern  void    processor_data_init(
  84                                         processor_t             processor);
  85
  86 #endif /* MACH_KERNEL_PRIVATE */
  87
  88 #endif /* _KERN_PROCESSOR_DATA_H_ */