osfmk/kern/etimer.h

   1 /*
   2  * Copyright (c) 2004-2008 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  * @APPLE_FREE_COPYRIGHT@
  33  */
  34 /*
  35  *      File:           etimer.h
  36  *      Purpose:        Routines for handling the machine independent
  37  *                              real-time clock.
  38  */
  39
  40 #ifdef  KERNEL_PRIVATE
  41
  42 #ifndef _KERN_ETIMER_H_
  43 #define _KERN_ETIMER_H_
  44
  45 #define EndOfAllTime    0xFFFFFFFFFFFFFFFFULL
  46
  47 typedef void (*etimer_intr_t)(int, uint64_t);
  48
  49 extern int setTimerReq(void);
  50 extern void etimer_intr(int inuser, uint64_t iaddr);
  51
  52 extern void etimer_set_deadline(uint64_t deadline);
  53 #if defined(i386) || defined(x86_64)
  54 extern uint64_t setPop(uint64_t time);
  55 #else
  56 extern int setPop(uint64_t time);
  57 #endif
  58
  59 extern void etimer_resync_deadlines(void);
  60
  61 extern uint32_t etimer_queue_migrate(int target_cpu);
  62
  63 /* Kernel trace events associated with timers */
  64 #define DECR_TRAP_LATENCY       MACHDBG_CODE(DBG_MACH_EXCP_DECI, 0)
  65 #define DECR_SET_DEADLINE       MACHDBG_CODE(DBG_MACH_EXCP_DECI, 1)
  66 #define DECR_TIMER_CALLOUT      MACHDBG_CODE(DBG_MACH_EXCP_DECI, 2)
  67 #define DECR_PM_DEADLINE        MACHDBG_CODE(DBG_MACH_EXCP_DECI, 3)
  68 #define DECR_TIMER_MIGRATE      MACHDBG_CODE(DBG_MACH_EXCP_DECI, 4)
  69 #define DECR_RDHPET             MACHDBG_CODE(DBG_MACH_EXCP_DECI, 5)
  70 #define DECR_SET_TSC_DEADLINE   MACHDBG_CODE(DBG_MACH_EXCP_DECI, 6)
  71
  72 #endif /* _KERN_ETIMER_H_ */
  73
  74 #endif  /* KERNEL_PRIVATE */