1/*- 2 * Copyright (c) 2003,2004 Marcel Moolenaar 3 * Copyright (c) 2000 Doug Rabson 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 * 27 * $FreeBSD$ 28 */ 29 30#ifndef _MACHINE_PCB_H_ 31#define _MACHINE_PCB_H_ 32 33#ifndef _MACHINE_REGSET_H_ 34#include <machine/_regset.h> 35#endif 36 37/* 38 * PCB: process control block 39 */ 40struct pmap; 41struct pcb { 42 struct _special pcb_special; 43 struct _callee_saved pcb_preserved; 44 struct _callee_saved_fp pcb_preserved_fp; 45 struct _high_fp pcb_high_fp; 46 struct pcpu *pcb_fpcpu; 47 struct pmap *pcb_current_pmap; 48 49 uint64_t pcb_onfault; /* for copy faults */ 50 51 /* IA32 specific registers. */ 52 uint64_t pcb_ia32_cflg; 53 uint64_t pcb_ia32_eflag; 54 uint64_t pcb_ia32_fcr; 55 uint64_t pcb_ia32_fdr; 56 uint64_t pcb_ia32_fir; 57 uint64_t pcb_ia32_fsr; 58}; 59 60#ifdef _KERNEL 61 62#define savectx(p) swapctx(p, NULL) 63 64struct trapframe; 65 66void makectx(struct trapframe *, struct pcb *); 67void restorectx(struct pcb *) __dead2; 68int swapctx(struct pcb *old, struct pcb *new) __returns_twice; 69 70void ia32_restorectx(struct pcb *); 71void ia32_savectx(struct pcb *) __returns_twice; 72 73#endif 74 75#endif /* _MACHINE_PCB_H_ */ 76