1/*-
2 * Copyright (C) 1995, 1996 Wolfgang Solfrank.
3 * Copyright (C) 1995, 1996 TooLs GmbH.
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:

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24 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
25 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
26 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
27 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
28 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
29 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 *
31 * $NetBSD: pcb.h,v 1.4 2000/06/04 11:57:17 tsubai Exp $
32 * $FreeBSD: head/sys/powerpc/include/pcb.h 176742 2008-03-02 17:05:57Z raj $
33 */
34
35#ifndef _MACHINE_PCB_H_
36#define _MACHINE_PCB_H_
37
38typedef int faultbuf[25];
39
40struct pcb {
41 register_t pcb_context[20]; /* non-volatile r14-r31 */
42 register_t pcb_cr; /* Condition register */
43 register_t pcb_sp; /* stack pointer */
44 register_t pcb_lr; /* link register */
45 struct pmap *pcb_pm; /* pmap of our vmspace */
46 faultbuf *pcb_onfault; /* For use during
47 copyin/copyout */
48 int pcb_flags;
49#define PCB_FPU 1 /* Process had FPU initialized */
50 struct fpu {
51 double fpr[32];
52 double fpscr; /* FPSCR stored as double for easier access */
53 } pcb_fpu; /* Floating point processor */
54 unsigned int pcb_fpcpu; /* which CPU had our FPU
55 stuff. */
56
57 union {
58 struct {
59 register_t usr; /* USER_SR segment */
60 } aim;
61 struct {
62 register_t ctr;
63 register_t xer;
64 } booke;
65 } pcb_cpu;
66};
67
68#ifdef _KERNEL
69
70struct trapframe;
71
72#ifndef curpcb
73extern struct pcb *curpcb;
74#endif
75
76extern struct pmap *curpm;
77extern struct proc *fpuproc;
78
79void makectx(struct trapframe *, struct pcb *);
80
81#endif
82#endif /* _MACHINE_PCB_H_ */