2 * Copyright (C) 1995, 1996 Wolfgang Solfrank.
3 * Copyright (C) 1995, 1996 TooLs GmbH.
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. All advertising materials mentioning features or use of this software
15 * must display the following acknowledgement:
16 * This product includes software developed by TooLs GmbH.
17 * 4. The name of TooLs GmbH may not be used to endorse or promote products
18 * derived from this software without specific prior written permission.
20 * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR
21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
23 * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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.
31 * $NetBSD: pcb.h,v 1.4 2000/06/04 11:57:17 tsubai Exp $
35 #ifndef _MACHINE_PCB_H_
36 #define _MACHINE_PCB_H_
38 typedef register_t faultbuf[25];
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_toc; /* toc pointer */
45 register_t pcb_lr; /* link register */
46 struct pmap *pcb_pm; /* pmap of our vmspace */
47 faultbuf *pcb_onfault; /* For use during
50 #define PCB_FPU 1 /* Process had FPU initialized */
51 #define PCB_VEC 2 /* Process had Altivec initialized */
54 double fpscr; /* FPSCR stored as double for easier access */
55 } pcb_fpu; /* Floating point processor */
56 unsigned int pcb_fpcpu; /* which CPU had our FPU
62 register_t vscr; /* aligned at vector element 3 */
63 } pcb_vec __aligned(16); /* Vector processor */
64 unsigned int pcb_veccpu; /* which CPU had our vector
69 vm_offset_t usr_segm; /* Base address */
70 register_t usr_vsid; /* USER_SR segment */
85 extern struct pcb *curpcb;
88 extern struct pmap *curpm;
89 extern struct proc *fpuproc;
91 void makectx(struct trapframe *, struct pcb *);
92 void savectx(struct pcb *) __returns_twice;
95 #endif /* _MACHINE_PCB_H_ */