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pcb.h revision 1.11.4.2 
      1 /*	$NetBSD: pcb.h,v 1.11.4.2 2002/02/11 20:08:35 jdolecek Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1988 University of Utah.
      5  * Copyright (c) 1992, 1993
      6  *	The Regents of the University of California.  All rights reserved.
      7  *
      8  * This code is derived from software contributed to Berkeley by
      9  * the Systems Programming Group of the University of Utah Computer
     10  * Science Department and Ralph Campbell.
     11  *
     12  * Redistribution and use in source and binary forms, with or without
     13  * modification, are permitted provided that the following conditions
     14  * are met:
     15  * 1. Redistributions of source code must retain the above copyright
     16  *    notice, this list of conditions and the following disclaimer.
     17  * 2. Redistributions in binary form must reproduce the above copyright
     18  *    notice, this list of conditions and the following disclaimer in the
     19  *    documentation and/or other materials provided with the distribution.
     20  * 3. All advertising materials mentioning features or use of this software
     21  *    must display the following acknowledgement:
     22  *	This product includes software developed by the University of
     23  *	California, Berkeley and its contributors.
     24  * 4. Neither the name of the University nor the names of its contributors
     25  *    may be used to endorse or promote products derived from this software
     26  *    without specific prior written permission.
     27  *
     28  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     29  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     30  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     31  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     32  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     33  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     34  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     35  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     36  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     37  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     38  * SUCH DAMAGE.
     39  *
     40  * from: Utah Hdr: pcb.h 1.13 89/04/23
     41  *
     42  *	@(#)pcb.h	8.1 (Berkeley) 6/10/93
     43  */
     44 
     45 #include <mips/reg.h>
     46 
     47 /*
     48  * MIPS process control block
     49  */
     50 struct pcb
     51 {
     52 	struct fpreg pcb_fpregs;	/* saved floating point registers */
     53 	mips_reg_t pcb_context[12];	/* kernel context for resume */
     54 	caddr_t	pcb_onfault;		/* for copyin/copyout faults */
     55 	u_int32_t pcb_ppl;		/* previous priority level */
     56 };
     57 
     58 /*
     59  * The pcb is augmented with machine-dependent additional data for
     60  * core dumps.
     61  */
     62 struct md_coredump {
     63 	mips_reg_t md_regs[38];
     64 	struct fpreg md_fpregs;
     65 };
     66 
     67 #ifdef _KERNEL
     68 extern struct pcb *curpcb;			/* the current running pcb */
     69 extern struct segtab *segbase;			/* current segtab base */
     70 
     71 #define	PCB_FSR(pcb)	((pcb)->pcb_fpregs.r_regs[FSR - FPBASE])
     72 #endif
     73