/* $NetBSD: pcb.h,v 1.10 2003/10/13 21:46:39 scw Exp $ */
/*-
* SPDX-License-Identifier: BSD-4-Clause
*
* Copyright (c) 2001 Matt Thomas <matt@3am-software.com>.
* Copyright (c) 1994 Mark Brinicombe.
* 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 the RiscBSD team.
* 4. The name "RiscBSD" nor the name of the author may be used to
* endorse or promote products derived from this software without specific
* prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY RISCBSD ``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 RISCBSD OR CONTRIBUTORS 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.
*
* $FreeBSD$
*/
#ifndef _MACHINE_PCB_H_
#define _MACHINE_PCB_H_
#include <machine/frame.h>
#include <machine/vfp.h>
/*
* WARNING!
* Keep pcb_regs first for faster access in switch.S
*/
struct pcb {
struct switchframe pcb_regs; /* CPU state */
u_int pcb_flags;
#define PCB_OWNFPU 0x00000001
#define PCB_NOALIGNFLT 0x00000002
caddr_t pcb_onfault; /* On fault handler */
vm_offset_t pcb_pagedir; /* TTB0 value */
/*
* XXX:
* Variables pcb_pl1vec, pcb_l1vec, pcb_dacr are used solely
* by old PMAP. Keep them here for PCB binary compatibility
* between old and new PMAP.
*/
uint32_t *pcb_pl1vec; /* PTR to vector_base L1 entry*/
uint32_t pcb_l1vec; /* Value to stuff on ctx sw */
u_int pcb_dacr; /* Domain Access Control Reg */
struct vfp_state pcb_vfpstate; /* VP/NEON state */
u_int pcb_vfpcpu; /* VP/NEON last cpu */
} __aligned(8); /*
* We need the PCB to be aligned on 8 bytes, as we may
* access it using ldrd/strd, and ARM ABI require it
* to by aligned on 8 bytes.
*/
/*
* No additional data for core dumps.
*/
struct md_coredump {
int md_empty;
};
void makectx(struct trapframe *tf, struct pcb *pcb);
#ifdef _KERNEL
void savectx(struct pcb *) __returns_twice;
#endif /* _KERNEL */
#endif /* !_MACHINE_PCB_H_ */
