osfmk/kern/processor_data.h

   1 /*
   2  * Copyright (c) 2003 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  * Machine independent per processor data.
  25  */
  26
  27 #ifndef _KERN_PROCESSOR_DATA_H_
  28 #define _KERN_PROCESSOR_DATA_H_
  29
  30 /*
  31  * #include kern/processor.h instead of this file.
  32  */
  33
  34 #ifdef MACH_KERNEL_PRIVATE
  35
  36 #include <ipc/ipc_kmsg.h>
  37 #include <kern/timer.h>
  38
  39 struct processor_data {
  40         /* Processor state statistics */
  41         integer_t                               cpu_ticks[CPU_STATE_MAX];
  42
  43 #if !STAT_TIME
  44         /* Current execution timer */
  45         timer_t                                 current_timer;
  46         timer_data_t                    offline_timer;
  47 #endif  /* STAT_TIME */
  48
  49         /* Kernel stack cache */
  50         struct stack_cache {
  51                 vm_offset_t                             free;
  52                 unsigned int                    count;
  53         }                                               stack_cache;
  54
  55         /* Pending timer callouts */
  56         queue_head_t                    timer_call_queue;
  57
  58         /* VM event counters */
  59         vm_statistics_data_t    vm_stat;
  60
  61         /* IPC free message cache */
  62         struct ikm_cache {
  63 #define IKM_STASH       16
  64                 ipc_kmsg_t                              entries[IKM_STASH];
  65                 unsigned int                    avail;
  66         }                                               ikm_cache;
  67
  68         int                                             slot_num;
  69 };
  70
  71 typedef struct processor_data   processor_data_t;
  72
  73 #define PROCESSOR_DATA(processor, member)       \
  74                                         (processor)->processor_data.member
  75
  76 extern  void    processor_data_init(
  77                                         processor_t             processor);
  78
  79 #endif /* MACH_KERNEL_PRIVATE */
  80
  81 #endif /* _KERN_PROCESSOR_DATA_H_ */