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/*-
* Copyright (C) 1995, 1996 Wolfgang Solfrank.
* Copyright (C) 1995, 1996 TooLs GmbH.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by TooLs GmbH.
* 4. The name of TooLs GmbH may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $NetBSD: pcb.h,v 1.4 2000/06/04 11:57:17 tsubai Exp $
* $FreeBSD$
*/
#ifndef _MACHINE_PCB_H_
#define _MACHINE_PCB_H_
typedef register_t faultbuf[25];
struct pcb {
register_t pcb_context[20]; /* non-volatile r14-r31 */
register_t pcb_cr; /* Condition register */
register_t pcb_sp; /* stack pointer */
register_t pcb_toc; /* toc pointer */
register_t pcb_lr; /* link register */
struct pmap *pcb_pm; /* pmap of our vmspace */
faultbuf *pcb_onfault; /* For use during
copyin/copyout */
int pcb_flags;
#define PCB_FPU 1 /* Process uses FPU */
#define PCB_FPREGS 2 /* Process had FPU registers initialized */
#define PCB_VEC 4 /* Process had Altivec initialized */
struct fpu {
double fpr[32];
double fpscr; /* FPSCR stored as double for easier access */
} pcb_fpu; /* Floating point processor */
unsigned int pcb_fpcpu; /* which CPU had our FPU
stuff. */
struct vec {
uint32_t vr[32][4];
register_t vrsave;
register_t spare[2];
register_t vscr; /* aligned at vector element 3 */
} pcb_vec __aligned(16); /* Vector processor */
unsigned int pcb_veccpu; /* which CPU had our vector
stuff. */
union {
struct {
vm_offset_t usr_segm; /* Base address */
register_t usr_vsid; /* USER_SR segment */
} aim;
struct {
register_t dbcr0;
} booke;
} pcb_cpu;
};
#ifdef _KERNEL
struct trapframe;
#ifndef curpcb
extern struct pcb *curpcb;
#endif
extern struct pmap *curpm;
extern struct proc *fpuproc;
void makectx(struct trapframe *, struct pcb *);
void savectx(struct pcb *) __returns_twice;
#endif
#endif /* _MACHINE_PCB_H_ */
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