62 lines
2.4 KiB
C
62 lines
2.4 KiB
C
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/*
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* Copyright (c) 1996, by Peter Wemm
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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. The name of the developer may NOT be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $Id: smpasm.h,v 1.8 1997/04/25 03:11:40 fsmp Exp $
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*/
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#ifndef __MACHINE_SMPASM_H__
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#define __MACHINE_SMPASM_H__ 1
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#if defined(SMP) || defined(APIC_IO)
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#include <machine/apic.h>
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/* Macro to retrieve the current CPU id from hardware */
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#define GETCPUID(reg) \
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movl _apic_base, reg; \
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movl APIC_ID(reg), reg; \
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andl $APIC_ID_MASK, reg; \
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shrl $24, reg; \
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movl _apic_id_to_logical(,reg,4), reg
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#define SETCURPROC(val, reg) GETCPUID(reg); movl val, _SMPcurproc(,reg,4)
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#define GETCURPROC(reg) GETCPUID(reg); movl _SMPcurproc(,reg,4), reg
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#define SETCURPCB(val, reg) GETCPUID(reg); movl val, _SMPcurpcb(,reg,4)
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#define GETCURPCB(reg) GETCPUID(reg); movl _SMPcurpcb(,reg,4), reg
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#define SETNPXPROC(val, reg) GETCPUID(reg); movl val, _SMPnpxproc(,reg,4)
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#define GETNPXPROC(reg) GETCPUID(reg); movl _SMPnpxproc(,reg,4), reg
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#else /* !SMP && !APIC_IO */
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#define SETCURPROC(val, reg) movl val, _curproc
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#define GETCURPROC(reg) movl _curproc, reg
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#define SETCURPCB(val, reg) movl val, _curpcb
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#define GETCURPCB(reg) movl _curpcb, reg
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#define SETNPXPROC(val, reg) movl val, _npxproc
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#define GETNPXPROC(reg) movl _npxproc, reg
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#endif /* SMP || APIC_IO */
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#endif /* __MACHINE_SMPASM_H__ */
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