1 /* $NetBSD: pcb.h,v 1.16 2022/12/11 18:02:40 oster Exp $ */ 2 3 /* 4 * Copyright (c) 1994 Ludd, University of Lule}, Sweden. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28 /* All bugs are subject to removal without further notice */ 29 30 #ifndef _VAX_PCB_H_ 31 #define _VAX_PCB_H_ 32 33 #include <machine/trap.h> 34 35 struct pcb { 36 37 /* Hardware registers, based on VAX special instructions */ 38 39 long KSP; /* Kernel Stack Pointer */ 40 long ESP; /* Executive Stack Pointer */ 41 long SSP; /* Supervisor Stack Pointer */ 42 long USP; /* User Stack Pointer */ 43 long R[12]; /* Register 0-11 */ 44 long AP; /* Argument Pointer */ 45 long FP; /* Frame Pointer */ 46 long PC; /* Program Counter */ 47 long PSL; /* Program Status Longword */ 48 struct pte *P0BR; /* Page 0 Base Register */ 49 long P0LR; /* Page 0 Length Register */ 50 struct pte *P1BR; /* Page 1 Base Register */ 51 long P1LR; /* Page 1 Length Register */ 52 long ASN; /* Address space number */ 53 54 /* Software registers, only used by kernel software */ 55 void *pcb_onfault; /* Tells whether fault copy */ 56 paddr_t pcb_paddr; /* physical address of PCB */ 57 struct pmap *pcb_pm; /* owning pmap */ 58 struct pcb *pcb_pmnext; /* next pcb that shares this pmap */ 59 }; 60 61 #define AST_MASK 0x07000000 62 #define AST_PCB 0x04000000 /* disable AST */ 63 #define AST_ON 0x03000000 /* request AST */ 64 65 /* machine-specific core dump; save trapframe */ 66 struct md_coredump { 67 struct trapframe md_tf; 68 }; 69 70 #endif /* _VAX_PCB_H_ */ 71 72