16fc729afSOlivier Houchard /* $NetBSD: pcb.h,v 1.10 2003/10/13 21:46:39 scw Exp $ */ 26fc729afSOlivier Houchard 3d8315c79SWarner Losh /*- 46fc729afSOlivier Houchard * Copyright (c) 2001 Matt Thomas <matt@3am-software.com>. 56fc729afSOlivier Houchard * Copyright (c) 1994 Mark Brinicombe. 66fc729afSOlivier Houchard * All rights reserved. 76fc729afSOlivier Houchard * 86fc729afSOlivier Houchard * Redistribution and use in source and binary forms, with or without 96fc729afSOlivier Houchard * modification, are permitted provided that the following conditions 106fc729afSOlivier Houchard * are met: 116fc729afSOlivier Houchard * 1. Redistributions of source code must retain the above copyright 126fc729afSOlivier Houchard * notice, this list of conditions and the following disclaimer. 136fc729afSOlivier Houchard * 2. Redistributions in binary form must reproduce the above copyright 146fc729afSOlivier Houchard * notice, this list of conditions and the following disclaimer in the 156fc729afSOlivier Houchard * documentation and/or other materials provided with the distribution. 166fc729afSOlivier Houchard * 3. All advertising materials mentioning features or use of this software 176fc729afSOlivier Houchard * must display the following acknowledgement: 186fc729afSOlivier Houchard * This product includes software developed by the RiscBSD team. 196fc729afSOlivier Houchard * 4. The name "RiscBSD" nor the name of the author may be used to 206fc729afSOlivier Houchard * endorse or promote products derived from this software without specific 216fc729afSOlivier Houchard * prior written permission. 226fc729afSOlivier Houchard * 236fc729afSOlivier Houchard * THIS SOFTWARE IS PROVIDED BY RISCBSD ``AS IS'' AND ANY EXPRESS OR IMPLIED 246fc729afSOlivier Houchard * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 256fc729afSOlivier Houchard * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 266fc729afSOlivier Houchard * IN NO EVENT SHALL RISCBSD OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 276fc729afSOlivier Houchard * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 286fc729afSOlivier Houchard * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 296fc729afSOlivier Houchard * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 306fc729afSOlivier Houchard * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 316fc729afSOlivier Houchard * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 326fc729afSOlivier Houchard * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 336fc729afSOlivier Houchard * SUCH DAMAGE. 346fc729afSOlivier Houchard * 356fc729afSOlivier Houchard * $FreeBSD$ 366fc729afSOlivier Houchard */ 376fc729afSOlivier Houchard 386fc729afSOlivier Houchard #ifndef _MACHINE_PCB_H_ 396fc729afSOlivier Houchard #define _MACHINE_PCB_H_ 406fc729afSOlivier Houchard 416fc729afSOlivier Houchard #include <machine/fp.h> 42c4c27bc9SIan Lepore #include <machine/frame.h> 436fc729afSOlivier Houchard 446fc729afSOlivier Houchard 456fc729afSOlivier Houchard /* 466fc729afSOlivier Houchard * WARNING! 47c4c27bc9SIan Lepore * Keep pcb_regs first for faster access in switch.S 486fc729afSOlivier Houchard */ 496fc729afSOlivier Houchard struct pcb { 50c4c27bc9SIan Lepore struct switchframe pcb_regs; /* CPU state */ 516fc729afSOlivier Houchard u_int pcb_flags; 526fc729afSOlivier Houchard #define PCB_OWNFPU 0x00000001 536fc729afSOlivier Houchard #define PCB_NOALIGNFLT 0x00000002 546fc729afSOlivier Houchard caddr_t pcb_onfault; /* On fault handler */ 55676420e8SZbigniew Bodek vm_offset_t pcb_pagedir; /* TTB0 value */ 56676420e8SZbigniew Bodek /* 57676420e8SZbigniew Bodek * XXX: 58676420e8SZbigniew Bodek * Variables pcb_pl1vec, pcb_l1vec, pcb_dacr are used solely 59676420e8SZbigniew Bodek * by old PMAP. Keep them here for PCB binary compatibility 60676420e8SZbigniew Bodek * between old and new PMAP. 61676420e8SZbigniew Bodek */ 62c4c27bc9SIan Lepore uint32_t *pcb_pl1vec; /* PTR to vector_base L1 entry*/ 63c4c27bc9SIan Lepore uint32_t pcb_l1vec; /* Value to stuff on ctx sw */ 64c4c27bc9SIan Lepore u_int pcb_dacr; /* Domain Access Control Reg */ 65676420e8SZbigniew Bodek 66cf1a573fSOleksandr Tymoshenko struct vfp_state pcb_vfpstate; /* VP/NEON state */ 67cf1a573fSOleksandr Tymoshenko u_int pcb_vfpcpu; /* VP/NEON last cpu */ 683acd1dbcSOlivier Houchard } __aligned(8); /* 693acd1dbcSOlivier Houchard * We need the PCB to be aligned on 8 bytes, as we may 70c4c27bc9SIan Lepore * access it using ldrd/strd, and ARM ABI require it 713acd1dbcSOlivier Houchard * to by aligned on 8 bytes. 723acd1dbcSOlivier Houchard */ 736fc729afSOlivier Houchard 746fc729afSOlivier Houchard /* 756fc729afSOlivier Houchard * No additional data for core dumps. 766fc729afSOlivier Houchard */ 776fc729afSOlivier Houchard struct md_coredump { 786fc729afSOlivier Houchard int md_empty; 796fc729afSOlivier Houchard }; 806fc729afSOlivier Houchard 8133f588f1SOlivier Houchard void makectx(struct trapframe *tf, struct pcb *pcb); 8233f588f1SOlivier Houchard 836fc729afSOlivier Houchard #ifdef _KERNEL 84c5f7772fSOlivier Houchard 85460378bfSDimitry Andric void savectx(struct pcb *) __returns_twice; 866fc729afSOlivier Houchard #endif /* _KERNEL */ 876fc729afSOlivier Houchard 886fc729afSOlivier Houchard #endif /* !_MACHINE_PCB_H_ */ 89