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a27e66e8f5
o) Mask off PAGE_MASK bits in pmap_update_page, etc., rather than modifying the badvaddr in trapframe. Some nearby interfaces already did this. o) Make PTEs "unsigned int" for now, not "unsigned long" -- we are only ready for them to be 32-bit on 64-bit platforms. o) Rather than using pmap_segmap and calculating the offset into the page table by hand in trap.c, use pmap_pte(). o) Remove unused quad_syscall variable in trap.c. o) Log things for illegal instructions like we do for bad page faults. o) Various cast cleanups related to how to print registers. o) When logging page faults, show the page table information not just for the program counter, but for the fault address. o) Modify support.S to use ABI-neutral macros for operating on pointers. o) Consistently use CALLFRAME_SIZ rather than STAND_FRAME_SIZE, etc. o) Remove unused insque/remque functions. o) Remove some coprocessor 0 accessor functions implemented in assembly that are unused and have inline assembly counterparts.
85 lines
2.9 KiB
C
85 lines
2.9 KiB
C
/* $OpenBSD: pcb.h,v 1.3 1998/09/15 10:50:12 pefo Exp $ */
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/*-
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* Copyright (c) 1988 University of Utah.
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* Copyright (c) 1992, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* the Systems Programming Group of the University of Utah Computer
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* Science Department and Ralph Campbell.
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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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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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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* from: Utah Hdr: pcb.h 1.13 89/04/23
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* from: @(#)pcb.h 8.1 (Berkeley) 6/10/93
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* JNPR: pcb.h,v 1.2 2006/08/07 11:51:17 katta
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* $FreeBSD$
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*/
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#ifndef _MACHINE_PCB_H_
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#define _MACHINE_PCB_H_
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#include <machine/frame.h>
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/*
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* MIPS process control block
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*/
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struct pcb
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{
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struct trapframe pcb_regs; /* saved CPU and registers */
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__register_t pcb_context[14]; /* kernel context for resume */
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void *pcb_onfault; /* for copyin/copyout faults */
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register_t pcb_tpc;
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};
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/* these match the regnum's in regnum.h
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* used by switch.S
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*/
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#define PCB_REG_S0 0
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#define PCB_REG_S1 1
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#define PCB_REG_S2 2
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#define PCB_REG_S3 3
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#define PCB_REG_S4 4
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#define PCB_REG_S5 5
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#define PCB_REG_S6 6
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#define PCB_REG_S7 7
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#define PCB_REG_SP 8
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#define PCB_REG_S8 9
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#define PCB_REG_RA 10
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#define PCB_REG_SR 11
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#define PCB_REG_GP 12
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#define PCB_REG_PC 13
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#ifdef _KERNEL
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extern struct pcb *curpcb; /* the current running pcb */
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void makectx(struct trapframe *, struct pcb *);
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int savectx(struct pcb *);
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#endif
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#endif /* !_MACHINE_PCB_H_ */
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