7b2f527b76
Highlights include: - New low-level trap code from NetBSD. The high level code still needs a lot of work. - Fixes for some pmap handling in thread switching. - The kernel will now get to attempting to jump into init in user mode. There are some pmap/trap issues which prevent it from actually getting there though. Obtained from: NetBSD (parts)
53 lines
2.0 KiB
C
53 lines
2.0 KiB
C
/*-
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* Copyright (c) 1999 Luoqi Chen <luoqi@freebsd.org>
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* Copyright (c) Peter Wemm <peter@netplex.com.au>
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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 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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* $FreeBSD$
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*/
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#ifndef _MACHINE_PCPU_H_
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#define _MACHINE_PCPU_H_
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#ifdef _KERNEL
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#include <machine/cpufunc.h>
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struct pmap;
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#define PCPU_MD_FIELDS \
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int pc_inside_intr; \
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u_int32_t pc_next_asn; /* next ASN to alloc */ \
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u_int32_t pc_current_asngen; /* ASN rollover check */\
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struct pmap *pc_curpmap /* current pmap */
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#define PCPUP ((struct pcpu *) powerpc_get_pcpup())
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#define PCPU_GET(member) (PCPUP->pc_ ## member)
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#define PCPU_PTR(member) (&PCPUP->pc_ ## member)
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#define PCPU_SET(member,value) (PCPUP->pc_ ## member = (value))
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#endif /* _KERNEL */
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#endif /* !_MACHINE_PCPU_H_ */
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