/*
* Copyright (c) 2010 Apple Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
* This file contains Original Code and/or Modifications of Original Code
* as defined in and that are subject to the Apple Public Source License
* Version 2.0 (the 'License'). You may not use this file except in
* compliance with the License. The rights granted to you under the License
* may not be used to create, or enable the creation or redistribution of,
* unlawful or unlicensed copies of an Apple operating system, or to
* circumvent, violate, or enable the circumvention or violation of, any
* terms of an Apple operating system software license agreement.
*
* Please obtain a copy of the License at
* http://www.opensource.apple.com/apsl/ and read it before using this file.
*
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
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/*
* @OSF_COPYRIGHT@
*/
/*
* @APPLE_FREE_COPYRIGHT@
*/
/*
* File: rtclock_protos.h
* Purpose: C Routines for handling the machine dependent
* real-time clock.
*/
#ifndef _I386_RTCLOCK_PROTOS_H_
#define _I386_RTCLOCK_PROTOS_H_
typedef struct pal_rtc_nanotime pal_rtc_nanotime_t;
extern uint64_t tsc_rebase_abs_time;
extern void _rtc_nanotime_adjust(
uint64_t tsc_base_delta,
pal_rtc_nanotime_t *dst);
extern uint64_t _rtc_nanotime_read(
pal_rtc_nanotime_t *rntp);
extern uint64_t _rtc_tsc_to_nanoseconds(
uint64_t value,
pal_rtc_nanotime_t *rntp);
extern int rtclock_intr(x86_saved_state_t *regs);
/*
* Timer control.
*/
typedef struct {
void (*rtc_config)(void);
uint64_t (*rtc_set)(uint64_t, uint64_t);
} rtc_timer_t;
extern rtc_timer_t *rtc_timer;
extern void rtc_timer_init(void);
extern void rtclock_early_init(void);
extern void rtc_nanotime_init(uint64_t);
extern void rtc_decrementer_configure(void);
#endif /* _I386_RTCLOCK_PROTOS_H_ */