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[25]; 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 struct pmap *pcb_pm; /* pmap of our vmspace */ 46 faultbuf *pcb_onfault; /* For use during 47 copyin/copyout */ 48 int pcb_flags; 49 #define PCB_FPU 1 /* Process had FPU initialized */ 50 #define PCB_VEC 2 /* Process had Altivec initialized */ 51 struct fpu { 52 double fpr[32]; 53 double fpscr; /* FPSCR stored as double for easier access */ 54 } pcb_fpu; /* Floating point processor */ 55 unsigned int pcb_fpcpu; /* which CPU had our FPU 56 stuff. */ 57 struct vec { 58 uint32_t vr[32][4]; 59 register_t vrsave; 60 register_t spare[2]; 61 register_t vscr; 62 } pcb_vec __attribute__((aligned(16))); /* Vector processor */ 63 unsigned int pcb_veccpu; /* which CPU had our vector 64 stuff. */ 65 66 union { 67 struct { 68 register_t usr; /* USER_SR segment */ 69 } aim; 70 struct { 71 register_t ctr; 72 register_t xer; 73 register_t dbcr0; 74 } booke; 75 } pcb_cpu; 76 }; 77 78 #ifdef _KERNEL 79 80 struct trapframe; 81 82 #ifndef curpcb 83 extern struct pcb *curpcb; 84 #endif 85 86 extern struct pmap *curpm; 87 extern struct proc *fpuproc; 88 89 void makectx(struct trapframe *, struct pcb *); 90 91 #endif 92 #endif /* _MACHINE_PCB_H_ */ 93