1 /* $NetBSD: pcb.h,v 1.14 2003/03/05 05:27:25 matt Exp $ */ 2 3 /*- 4 * Copyright (C) 1995, 1996 Wolfgang Solfrank. 5 * Copyright (C) 1995, 1996 TooLs GmbH. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by TooLs GmbH. 19 * 4. The name of TooLs GmbH may not be used to endorse or promote products 20 * derived from this software without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR 23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 25 * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 26 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 27 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 28 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 29 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 30 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 31 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 */ 33 #ifndef _POWERPC_PCB_H_ 34 #define _POWERPC_PCB_H_ 35 36 #include <powerpc/reg.h> 37 38 struct faultbuf { 39 register_t fb_pc; /* PC */ 40 register_t fb_sp; /* R1 */ 41 register_t fb_r2; /* R2 (why?) */ 42 register_t fb_cr; /* CR */ 43 register_t fb_fixreg[19]; /* R13-R31 */ 44 }; 45 46 struct fpu { 47 double fpr[32]; 48 double fpscr; /* FPSCR stored as double for easier access */ 49 }; 50 51 struct pcb { 52 struct pmap *pcb_pm; /* pmap of our vmspace */ 53 struct pmap *pcb_pmreal; /* real address of above */ 54 register_t pcb_sp; /* saved SP */ 55 int pcb_spl; /* saved SPL */ 56 int pcb_flags; 57 #define PCB_FPU 1 /* Process had FPU initialized */ 58 #define PCB_ALTIVEC 2 /* Process had AltiVec initialized */ 59 struct cpu_info * __volatile pcb_fpcpu; /* CPU with our FP state */ 60 struct cpu_info * __volatile pcb_veccpu;/* CPU with our VECTOR state */ 61 struct faultbuf *pcb_onfault; /* For use during copyin/copyout */ 62 vaddr_t pcb_kmapsr; /* where to map user segment in kernel */ 63 vaddr_t pcb_umapsr; /* the user segment mapped in kernel */ 64 struct fpu pcb_fpu; /* Floating point processor */ 65 struct vreg pcb_vr __attribute__((aligned(16))); 66 }; 67 68 struct md_coredump { 69 struct trapframe frame; 70 struct fpu fpstate; 71 struct vreg vstate; 72 }; 73 74 #ifdef _KERNEL 75 int setfault(struct faultbuf *); 76 #endif 77 78 #endif /* _POWERPC_PCB_H_ */ 79