sys/arch/amd64/include/proc.h

   1 /*      $NetBSD: proc.h,v 1.11 2008/10/26 00:08:15 mrg 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 _AMD64_PROC_H
  35 #define _AMD64_PROC_H
  36
  37 #ifdef __x86_64__
  38
  39 #include <sys/user.h> /* for sizeof(struct user) */
  40 #include <machine/frame.h>
  41
  42 /*
  43  * Machine-dependent part of the lwp structure for amd64.
  44  */
  45 struct pmap;
  46 struct vm_page;
  47
  48 struct mdlwp {
  49         struct  trapframe *md_regs;     /* registers on current frame */
  50         struct pmap *md_gc_pmap;        /* pmap being garbage collected */
  51         struct vm_page *md_gc_ptp;      /* pages from pmap g/c */
  52         int     md_flags;               /* machine-dependent flags */
  53         volatile int md_astpending;
  54 };
  55
  56 struct mdproc {
  57         int     md_flags;
  58                                         /* Syscall handling function */
  59         void    (*md_syscall)(struct trapframe *);
  60 };
  61
  62 /* md_flags */
  63 #define MDP_USEDFPU     0x0001  /* has used the FPU */
  64 #define MDP_COMPAT      0x0002  /* x86 compatibility process */
  65 #define MDP_SYSCALL     0x0004  /* entered kernel via syscall ins */
  66 #define MDP_USEDMTRR    0x0008  /* has set volatile MTRRs */
  67 #define MDP_IRET        0x0010  /* return via iret, not sysret */
  68
  69 #define UAREA_USER_OFFSET       (USPACE - ALIGN(sizeof(struct user)))
  70 #define KSTACK_LOWEST_ADDR(l)   ((void *)USER_TO_UAREA((l)->l_addr))
  71 #define KSTACK_SIZE             UAREA_USER_OFFSET
  72
  73 #else   /*      __x86_64__      */
  74
  75 #include <i386/proc.h>
  76
  77 #endif  /*      __x86_64__      */
  78
  79 #endif /* _AMD64_PROC_H */