xref: /netbsd-src/sys/arch/mips/include/pcb.h (revision daf6c4152fcddc27c445489775ed1f66ab4ea9a9)
1 /*	$NetBSD: pcb.h,v 1.22 2011/02/08 20:20:19 rmind 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. Neither the name of the University nor the names of its contributors
21  *    may be used to endorse or promote products derived from this software
22  *    without specific prior written permission.
23  *
24  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34  * SUCH DAMAGE.
35  *
36  * from: Utah Hdr: pcb.h 1.13 89/04/23
37  *
38  *	@(#)pcb.h	8.1 (Berkeley) 6/10/93
39  */
40 
41 #ifndef _MIPS_PCB_H_
42 #define	_MIPS_PCB_H_
43 
44 #include <mips/types.h>
45 #include <mips/reg.h>
46 
47 /*
48  * MIPS process control block
49  */
50 struct pcb {
51 	struct fpreg pcb_fpregs;	/* saved floating point registers */
52 	label_t pcb_context;		/* kernel context for resume */
53 	void *	pcb_onfault;		/* for copyin/copyout faults */
54 	uint32_t pcb_ppl;		/* previous priority level */
55 };
56 
57 /*
58  * The pcb is augmented with machine-dependent additional data for
59  * core dumps.
60  */
61 struct md_coredump {
62 	mips_reg_t md_regs[38];
63 	struct fpreg md_fpregs;
64 };
65 
66 #ifdef _KERNEL
67 #define	PCB_FSR(pcb)	((pcb)->pcb_fpregs.r_regs[_R_FSR - _FPBASE])
68 #endif
69 #endif /*_MIPS_PCB_H_*/
70