osfmk/kern/processor_data.h

   1 /*
   2  * Copyright (c) 2003 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * The contents of this file constitute Original Code as defined in and
   7  * are subject to the Apple Public Source License Version 1.1 (the
   8  * "License").  You may not use this file except in compliance with the
   9  * License.  Please obtain a copy of the License at
  10  * http://www.apple.com/publicsource and read it before using this file.
  11  *
  12  * This Original Code and all software distributed under the License are
  13  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  14  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  15  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  17  * License for the specific language governing rights and limitations
  18  * under the License.
  19  *
  20  * @APPLE_LICENSE_HEADER_END@
  21  */
  22 /*
  23  * Machine independent per processor data.
  24  */
  25
  26 #ifndef _KERN_PROCESSOR_DATA_H_
  27 #define _KERN_PROCESSOR_DATA_H_
  28
  29 /*
  30  * #include kern/processor.h instead of this file.
  31  */
  32
  33 #ifdef MACH_KERNEL_PRIVATE
  34
  35 #include <ipc/ipc_kmsg.h>
  36 #include <kern/timer.h>
  37
  38 struct processor_data {
  39         /* Processor state statistics */
  40         integer_t                               cpu_ticks[CPU_STATE_MAX];
  41
  42 #if !STAT_TIME
  43         /* Current execution timer */
  44         timer_t                                 current_timer;
  45         timer_data_t                    offline_timer;
  46 #endif  /* STAT_TIME */
  47
  48         /* Kernel stack cache */
  49         struct stack_cache {
  50                 vm_offset_t                             free;
  51                 unsigned int                    count;
  52         }                                               stack_cache;
  53
  54         /* Pending timer callouts */
  55         queue_head_t                    timer_call_queue;
  56
  57         /* VM event counters */
  58         vm_statistics_data_t    vm_stat;
  59
  60         /* IPC free message cache */
  61         struct ikm_cache {
  62 #define IKM_STASH       16
  63                 ipc_kmsg_t                              entries[IKM_STASH];
  64                 unsigned int                    avail;
  65         }                                               ikm_cache;
  66
  67         int                                             slot_num;
  68 };
  69
  70 typedef struct processor_data   processor_data_t;
  71
  72 #define PROCESSOR_DATA(processor, member)       \
  73                                         (processor)->processor_data.member
  74
  75 extern  void    processor_data_init(
  76                                         processor_t             processor);
  77
  78 #endif /* MACH_KERNEL_PRIVATE */
  79
  80 #endif /* _KERN_PROCESSOR_DATA_H_ */