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3a60a9f5 1/*
6d2010ae 2 * Copyright (c) 2010 Apple Inc. All rights reserved.
3a60a9f5 3 *
2d21ac55 4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
3a60a9f5 5 *
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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.
8f6c56a5 14 *
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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
8f6c56a5
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20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
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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.
8f6c56a5 25 *
2d21ac55 26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
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27 */
28/*
29 * @OSF_COPYRIGHT@
30 */
31/*
32 * @APPLE_FREE_COPYRIGHT@
33 */
34/*
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35 * File: rtclock_protos.h
36 * Purpose: C Routines for handling the machine dependent
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37 * real-time clock.
38 */
39
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40#ifndef _I386_RTCLOCK_PROTOS_H_
41#define _I386_RTCLOCK_PROTOS_H_
3a60a9f5 42
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43typedef struct pal_rtc_nanotime pal_rtc_nanotime_t;
44extern uint64_t tsc_rebase_abs_time;
0c530ab8 45
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46extern void _rtc_nanotime_adjust(
47 uint64_t tsc_base_delta,
48 pal_rtc_nanotime_t *dst);
3a60a9f5 49
6d2010ae 50extern uint64_t _rtc_nanotime_read(
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51 pal_rtc_nanotime_t *rntp);
52
53extern uint64_t _rtc_tsc_to_nanoseconds(
54 uint64_t value,
55 pal_rtc_nanotime_t *rntp);
3a60a9f5 56
6d2010ae 57extern void rtclock_intr(x86_saved_state_t *regs);
3a60a9f5 58
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59
60/*
61 * Timer control.
62 */
63typedef struct {
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64 void (*rtc_config)(void);
65 uint64_t (*rtc_set) (uint64_t, uint64_t);
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66} rtc_timer_t;
67extern rtc_timer_t *rtc_timer;
68
69extern void rtc_timer_init(void);
70
fe8ab488 71extern void rtclock_early_init(void);
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72extern void rtc_nanotime_init(uint64_t);
73extern void rtc_decrementer_configure(void);
6d2010ae 74#endif /* _I386_RTCLOCK_PROTOS_H_ */