pcb.h revision 1.5 
1/*	$NetBSD: pcb.h,v 1.5 2002/10/18 21:32:59 bjh21 Exp $	*/
2
3/*
4 * Copyright (c) 2001 Matt Thomas <matt@3am-software.com>.
5 * Copyright (c) 1994 Mark Brinicombe.
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 the RiscBSD team.
19 * 4. The name "RiscBSD" nor the name of the author may be used to
20 *    endorse or promote products derived from this software without specific
21 *    prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY RISCBSD ``AS IS'' AND ANY EXPRESS OR IMPLIED
24 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
25 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
26 * IN NO EVENT SHALL RISCBSD OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
27 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
28 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
29 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 */
35
36#ifndef	_ARM_PCB_H_
37#define	_ARM_PCB_H_
38
39#include <machine/frame.h>
40#include <machine/fp.h>
41
42#include <arm/arm32/pte.h>
43
44struct trapframe;
45
46struct pcb_arm32 {
47	pd_entry_t *pcb32_pagedir;		/* PT hooks */
48	u_int	pcb32_r11;			/* used */
49	u_int	pcb32_r12;			/* used */
50	u_int	pcb32_sp;			/* used */
51	u_int	pcb32_lr;
52	u_int	pcb32_pc;
53	u_int	pcb32_und_sp;
54};
55#define	pcb_pagedir	pcb_un.un_32.pcb32_pagedir
56
57struct pcb_arm26 {
58	struct	switchframe *pcb26_sf;
59};
60#define	pcb_sf	pcb_un.un_26.pcb26_sf
61
62struct pcb {
63	u_int	pcb_flags;
64#define	PCB_OWNFPU	0x00000001
65	struct	trapframe *pcb_tf;
66	caddr_t	pcb_onfault;			/* On fault handler */
67	union	{
68		struct	pcb_arm32 un_32;
69		struct	pcb_arm26 un_26;
70	} pcb_un;
71	struct	fpe_sp_state pcb_fpstate;	/* Floating Point state */
72};
73#define	pcb_ff	pcb_fpstate			/* for arm26 */
74
75/*
76 * No additional data for core dumps.
77 */
78struct md_coredump {
79	int	md_empty;
80};
81
82#ifdef _KERNEL
83#ifdef _KERNEL_OPT
84#include "opt_multiprocessor.h"
85#endif
86#ifdef MULTIPROCESSOR
87#define curpcb	(curcpu()->ci_curpcb)
88#else
89extern struct pcb *curpcb;
90#endif
91#endif	/* _KERNEL */
92
93#endif	/* _ARM_PCB_H_ */
94