1 /*- 2 * Copyright (C) 1995, 1996 Wolfgang Solfrank. 3 * Copyright (C) 1995, 1996 TooLs GmbH. 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 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by TooLs GmbH. 17 * 4. The name of TooLs GmbH may not be used to endorse or promote products 18 * derived from this software without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR 21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 23 * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 24 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 25 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 26 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 27 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 28 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 29 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 * 31 * $NetBSD: pcb.h,v 1.4 2000/06/04 11:57:17 tsubai Exp $ 32 * $FreeBSD$ 33 */ 34 35 #ifndef _MACHINE_PCB_H_ 36 #define _MACHINE_PCB_H_ 37 38 typedef int faultbuf[23]; 39 40 struct pcb { 41 register_t pcb_context[20]; /* non-volatile r14-r31 */ 42 register_t pcb_cr; /* Condition register */ 43 register_t pcb_sp; /* stack pointer */ 44 register_t pcb_lr; /* link register */ 45 register_t pcb_usr; /* USER_SR segment register */ 46 struct pmap *pcb_pm; /* pmap of our vmspace */ 47 struct pmap *pcb_pmreal; /* real address of above */ 48 faultbuf *pcb_onfault; /* For use during 49 copyin/copyout */ 50 int pcb_flags; 51 #define PCB_FPU 1 /* Process had FPU initialized */ 52 struct fpu { 53 double fpr[32]; 54 double fpscr; /* FPSCR stored as double for easier access */ 55 } pcb_fpu; /* Floating point processor */ 56 unsigned int pcb_fpcpu; /* which CPU had our FPU 57 stuff. */ 58 }; 59 60 #ifdef _KERNEL 61 62 struct trapframe; 63 64 #ifndef curpcb 65 extern struct pcb *curpcb; 66 #endif 67 68 extern struct pmap *curpm; 69 extern struct proc *fpuproc; 70 71 void makectx(struct trapframe *, struct pcb *); 72 73 #endif 74 #endif /* _MACHINE_PCB_H_ */ 75