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pcb.h revision 1.14
      1  1.14    matt /*	$NetBSD: pcb.h,v 1.14 2003/03/05 05:27:25 matt Exp $	*/
      2   1.1      ws 
      3   1.1      ws /*-
      4   1.1      ws  * Copyright (C) 1995, 1996 Wolfgang Solfrank.
      5   1.1      ws  * Copyright (C) 1995, 1996 TooLs GmbH.
      6   1.1      ws  * All rights reserved.
      7   1.1      ws  *
      8   1.1      ws  * Redistribution and use in source and binary forms, with or without
      9   1.1      ws  * modification, are permitted provided that the following conditions
     10   1.1      ws  * are met:
     11   1.1      ws  * 1. Redistributions of source code must retain the above copyright
     12   1.1      ws  *    notice, this list of conditions and the following disclaimer.
     13   1.1      ws  * 2. Redistributions in binary form must reproduce the above copyright
     14   1.1      ws  *    notice, this list of conditions and the following disclaimer in the
     15   1.1      ws  *    documentation and/or other materials provided with the distribution.
     16   1.1      ws  * 3. All advertising materials mentioning features or use of this software
     17   1.1      ws  *    must display the following acknowledgement:
     18   1.1      ws  *	This product includes software developed by TooLs GmbH.
     19   1.1      ws  * 4. The name of TooLs GmbH may not be used to endorse or promote products
     20   1.1      ws  *    derived from this software without specific prior written permission.
     21   1.1      ws  *
     22   1.1      ws  * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR
     23   1.1      ws  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     24   1.1      ws  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     25   1.1      ws  * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     26   1.1      ws  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     27   1.1      ws  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
     28   1.1      ws  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
     29   1.1      ws  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
     30   1.1      ws  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
     31   1.1      ws  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     32   1.1      ws  */
     33  1.11    matt #ifndef	_POWERPC_PCB_H_
     34  1.11    matt #define	_POWERPC_PCB_H_
     35   1.1      ws 
     36   1.6    matt #include <powerpc/reg.h>
     37   1.6    matt 
     38  1.13    matt struct faultbuf {
     39  1.13    matt 	register_t fb_pc;		/* PC */
     40  1.13    matt 	register_t fb_sp;		/* R1 */
     41  1.13    matt 	register_t fb_r2;		/* R2 (why?) */
     42  1.13    matt 	register_t fb_cr;		/* CR */
     43  1.13    matt 	register_t fb_fixreg[19];	/* R13-R31 */
     44  1.13    matt };
     45  1.13    matt 
     46   1.8  martin struct fpu {
     47   1.8  martin 	double fpr[32];
     48   1.8  martin 	double fpscr;	/* FPSCR stored as double for easier access */
     49   1.8  martin };
     50   1.1      ws 
     51   1.1      ws struct pcb {
     52   1.1      ws 	struct pmap *pcb_pm;	/* pmap of our vmspace */
     53   1.1      ws 	struct pmap *pcb_pmreal; /* real address of above */
     54   1.1      ws 	register_t pcb_sp;	/* saved SP */
     55   1.1      ws 	int pcb_spl;		/* saved SPL */
     56  1.12    matt 	int pcb_flags;
     57  1.12    matt #define	PCB_FPU		1	/* Process had FPU initialized */
     58  1.12    matt #define	PCB_ALTIVEC	2	/* Process had AltiVec initialized */
     59  1.10     chs 	struct cpu_info * __volatile pcb_fpcpu; /* CPU with our FP state */
     60  1.10     chs 	struct cpu_info * __volatile pcb_veccpu;/* CPU with our VECTOR state */
     61  1.13    matt 	struct faultbuf *pcb_onfault;	/* For use during copyin/copyout */
     62  1.12    matt 	vaddr_t pcb_kmapsr;	/* where to map user segment in kernel */
     63  1.12    matt 	vaddr_t pcb_umapsr;	/* the user segment mapped in kernel */
     64   1.8  martin 	struct fpu pcb_fpu;	/* Floating point processor */
     65  1.14    matt 	struct vreg pcb_vr __attribute__((aligned(16)));
     66   1.1      ws };
     67   1.1      ws 
     68   1.1      ws struct md_coredump {
     69   1.1      ws 	struct trapframe frame;
     70   1.4  tsubai 	struct fpu fpstate;
     71   1.6    matt 	struct vreg vstate;
     72   1.1      ws };
     73   1.1      ws 
     74  1.13    matt #ifdef _KERNEL
     75  1.13    matt int setfault(struct faultbuf *);
     76   1.1      ws #endif
     77   1.5  tsubai 
     78  1.11    matt #endif	/* _POWERPC_PCB_H_ */
     79