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pcb.h revision 1.9 
      1 /*	$NetBSD: pcb.h,v 1.9 2002/07/05 18:45:21 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	_MACHINE_PCB_H_
     34 #define	_MACHINE_PCB_H_
     35 
     36 #include <powerpc/reg.h>
     37 
     38 typedef int faultbuf[23];
     39 struct fpu {
     40 	double fpr[32];
     41 	double fpscr;	/* FPSCR stored as double for easier access */
     42 };
     43 
     44 struct pcb {
     45 	struct pmap *pcb_pm;	/* pmap of our vmspace */
     46 	struct pmap *pcb_pmreal; /* real address of above */
     47 	register_t pcb_sp;	/* saved SP */
     48 	int pcb_spl;		/* saved SPL */
     49 	faultbuf *pcb_onfault;	/* For use during copyin/copyout */
     50 	int pcb_flags;
     51 #define	PCB_FPU		1	/* Process had FPU initialized */
     52 #define PCB_ALTIVEC	2	/* Process had AltiVec initialized */
     53 	struct fpu pcb_fpu;	/* Floating point processor */
     54 	struct vreg *pcb_vr;
     55 	struct cpu_info *pcb_fpcpu; /* CPU with our FP state */
     56 	struct cpu_info *pcb_veccpu; /* CPU with our VECTOR state */
     57 };
     58 
     59 struct md_coredump {
     60 	struct trapframe frame;
     61 	struct fpu fpstate;
     62 	struct vreg vstate;
     63 };
     64 
     65 #if defined(_KERNEL) && !defined(MULTIPROCESSOR)
     66 extern struct pcb *curpcb;
     67 extern struct pmap *curpm;
     68 #endif
     69 
     70 #endif	/* _MACHINE_PCB_H_ */
     71