1/*	$NetBSD: pcb.h,v 1.23 2021/10/27 18:20:23 christos 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#include <powerpc/frame.h>
38
39struct faultbuf {
40	register_t fb_sp;		/* R1 */
41	register_t fb_r2;		/* R2 (why?) */
42	/*
43	 * These are ordered so that one could use a stmw to save them.
44	 */
45	register_t fb_msr;		/* MSR */
46	register_t fb_pc;		/* PC */
47	register_t fb_cr;		/* CR */
48	register_t fb_fixreg[19];	/* R13-R31 */
49};
50
51struct pcb {
52	struct pmap *pcb_pm;	/* pmap of our vmspace */
53	register_t pcb_sp;	/* saved SP */
54	int pcb_flags;
55#define	PCB_FE1		PSL_FE1	/* 0x100 */
56#define	PCB_FE0		PSL_FE0	/* 0x800 */
57	struct faultbuf *pcb_onfault;	/* For use during copyin/copyout */
58	vaddr_t pcb_kmapsr;	/* where to map user segment in kernel */
59	vaddr_t pcb_umapsr;	/* the user segment mapped in kernel */
60	struct fpreg pcb_fpu;	/* Floating point processor */
61	struct vreg pcb_vr __attribute__((aligned(16)));
62	register_t pcb_usprg0;	/* User Special-Purpose Register General 0 */
63};
64
65struct md_coredump {
66	struct trapframe frame;
67	struct fpreg fpstate;
68	struct vreg vstate;
69};
70
71#ifdef _KERNEL
72int setfault(struct faultbuf *);
73#endif
74
75#endif	/* _POWERPC_PCB_H_ */