| 1 | /*- |
| 2 | * SPDX-License-Identifier: BSD-2-Clause |
| 3 | * |
| 4 | * Copyright 2012 Konstantin Belousov <kib@FreeBSD.ORG>. |
| 5 | * Copyright 2016 The FreeBSD Foundation. |
| 6 | * All rights reserved. |
| 7 | * |
| 8 | * Portions of this software were developed by Konstantin Belousov |
| 9 | * under sponsorship from the FreeBSD Foundation. |
| 10 | * |
| 11 | * Redistribution and use in source and binary forms, with or without |
| 12 | * modification, are permitted provided that the following conditions |
| 13 | * are met: |
| 14 | * 1. Redistributions of source code must retain the above copyright |
| 15 | * notice, this list of conditions and the following disclaimer. |
| 16 | * 2. Redistributions in binary form must reproduce the above copyright |
| 17 | * notice, this list of conditions and the following disclaimer in the |
| 18 | * documentation and/or other materials provided with the distribution. |
| 19 | * |
| 20 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| 21 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| 22 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| 23 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 24 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 25 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 26 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 27 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 28 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| 29 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 30 | */ |
| 31 | |
| 32 | #ifndef _X86_VDSO_H |
| 33 | #define	_X86_VDSO_H |
| 34 | |
| 35 | #define	VDSO_TIMEHANDS_MD			\ |
| 36 | 	uint32_t	th_x86_shift;		\ |
| 37 | 	uint32_t	th_x86_hpet_idx;	\ |
| 38 | 	uint64_t	th_x86_pvc_last_systime;\ |
| 39 | 	uint8_t		th_x86_pvc_stable_mask;	\ |
| 40 | 	uint8_t		th_res[15]; |
| 41 | |
| 42 | #define	VDSO_TH_ALGO_X86_TSC	VDSO_TH_ALGO_1 |
| 43 | #define	VDSO_TH_ALGO_X86_HPET	VDSO_TH_ALGO_2 |
| 44 | #define	VDSO_TH_ALGO_X86_HVTSC	VDSO_TH_ALGO_3	/* Hyper-V ref. TSC */ |
| 45 | #define	VDSO_TH_ALGO_X86_PVCLK	VDSO_TH_ALGO_4	/* KVM/XEN paravirtual clock */ |
| 46 | |
| 47 | #ifdef _KERNEL |
| 48 | #ifdef COMPAT_FREEBSD32 |
| 49 | |
| 50 | #define	VDSO_TIMEHANDS_MD32			\ |
| 51 | 	uint32_t	th_x86_shift;		\ |
| 52 | 	uint32_t	th_x86_hpet_idx;	\ |
| 53 | 	uint32_t	th_x86_pvc_last_systime[2];\ |
| 54 | 	uint8_t		th_x86_pvc_stable_mask;	\ |
| 55 | 	uint8_t		th_res[15]; |
| 56 | |
| 57 | #endif |
| 58 | #endif |
| 59 | #endif |