sys/platform/vkernel/include/md_var.h

   1 /*
   2  * Copyright (c) 2006 The DragonFly Project.  All rights reserved.
   3  *
   4  * This code is derived from software contributed to The DragonFly Project
   5  * by Matthew Dillon <dillon@backplane.com>
   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  *
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in
  15  *    the documentation and/or other materials provided with the
  16  *    distribution.
  17  * 3. Neither the name of The DragonFly Project nor the names of its
  18  *    contributors may be used to endorse or promote products derived
  19  *    from this software without specific, prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  22  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  23  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  24  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE
  25  * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  26  * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
  27  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  28  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  29  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  30  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
  31  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  32  * SUCH DAMAGE.
  33  *
  34  * $DragonFly: src/sys/platform/vkernel/include/md_var.h,v 1.6 2007/01/07 02:42:15 dillon Exp $
  35  */
  36
  37 #ifndef _MACHINE_MD_VAR_H_
  38 #define _MACHINE_MD_VAR_H_
  39
  40 #ifndef _SYS_TYPES_H_
  41 #include <sys/types.h>
  42 #endif
  43 #ifndef _SYS_VKERNEL_H_
  44 #include <sys/vkernel.h>
  45 #endif
  46
  47 extern  char    sigcode[];
  48 extern  int     szsigcode;
  49 extern  vpte_t  *KernelPTA;     /* NOTE: Offset for direct VA translation */
  50 extern  vpte_t  *KernelPTD;
  51 extern  vm_offset_t crashdumpmap;
  52 extern  int     cpu_fxsr;
  53
  54 extern  char    cpu_vendor[];   /* XXX belongs in i386 */
  55 extern  u_int   cpu_id;         /* XXX belongs in i386 */
  56
  57 extern int      RootImageFd;
  58
  59 struct mdglobaldata;
  60
  61 vpte_t *pmap_kpte(vm_offset_t va);
  62 void cpu_gdinit (struct mdglobaldata *gd, int cpu);
  63
  64 void cpu_heavy_restore(void);   /* cannot be called from C */
  65 void cpu_lwkt_restore(void);    /* cannot be called from C */
  66 void cpu_idle_restore(void);    /* cannot be called from C */
  67 void cpu_kthread_restore(void); /* cannot be called from C */
  68 void cpu_exit_switch (struct thread *next);
  69 void cpu_setregs (void);
  70 void cpu_idle (void);
  71 void go_user (void);
  72
  73 #endif
  74