328b5f2570
Implement the remaining pieces needed to allow userland timestamp reading. Rewritten based on an intial essay into the problem by Justin Hibbits. (Copyright changed to my own on his request.) Tested on ppc64 (POWER9 Talos II), powerpcspe (e500v2 RB800), and powerpc (g4 PowerBook). Reviewed by: jhibbits (in irc) Sponsored by: Tag1 Consulting, Inc. Differential Revision: https://reviews.freebsd.org/D26347
46 lines
1.6 KiB
C
46 lines
1.6 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright 2012 Konstantin Belousov <kib@FreeBSD.ORG>.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _POWERPC_VDSO_H
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#define _POWERPC_VDSO_H
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#define VDSO_TIMEHANDS_MD \
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uint32_t th_res[8];
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#define VDSO_TH_ALGO_PPC_TB VDSO_TH_ALGO_1
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#ifdef _KERNEL
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#ifdef COMPAT_FREEBSD32
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#define VDSO_TIMEHANDS_MD32 VDSO_TIMEHANDS_MD
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#endif
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#endif
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#endif
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