1 /* $NetBSD: proc.h,v 1.38 2011/01/14 02:06:26 rmind Exp $ */ 2 3 /* 4 * Copyright (c) 1991 Regents of the University of California. 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 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * @(#)proc.h 7.1 (Berkeley) 5/15/91 32 */ 33 34 #ifndef _I386_PROC_H_ 35 #define _I386_PROC_H_ 36 37 #include <machine/frame.h> 38 #include <machine/pcb.h> 39 40 /* 41 * Machine-dependent part of the lwp structure for i386. 42 */ 43 struct pmap; 44 struct vm_page; 45 46 struct mdlwp { 47 struct trapframe *md_regs; /* registers on current frame */ 48 int md_flags; /* machine-dependent flags */ 49 volatile int md_astpending; /* AST pending for this process */ 50 struct pmap *md_gc_pmap; /* pmap being garbage collected */ 51 struct vm_page *md_gc_ptp; /* pages from pmap g/c */ 52 }; 53 54 /* md_flags */ 55 #define MDL_USEDFPU 0x0001 /* has used the FPU */ 56 #define MDL_IOPL 0x0002 /* XEN: i/o privilege */ 57 58 struct mdproc { 59 int md_flags; 60 void (*md_syscall)(struct trapframe *); 61 /* Syscall handling function */ 62 }; 63 64 /* md_flags */ 65 #define MDP_USEDMTRR 0x0002 /* has set volatile MTRRs */ 66 67 /* Kernel stack parameters. */ 68 #define UAREA_PCB_OFFSET (USPACE - ALIGN(sizeof(struct pcb))) 69 #define KSTACK_LOWEST_ADDR(l) \ 70 ((void *)((vaddr_t)(l)->l_addr - UAREA_PCB_OFFSET)) 71 #define KSTACK_SIZE UAREA_PCB_OFFSET 72 73 #endif /* _I386_PROC_H_ */ 74