The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/i386/include/md_var.h

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    1 /*-
    2  * Copyright (c) 1995 Bruce D. Evans.
    3  * All rights reserved.
    4  *
    5  * Redistribution and use in source and binary forms, with or without
    6  * modification, are permitted provided that the following conditions
    7  * are met:
    8  * 1. Redistributions of source code must retain the above copyright
    9  *    notice, this list of conditions and the following disclaimer.
   10  * 2. Redistributions in binary form must reproduce the above copyright
   11  *    notice, this list of conditions and the following disclaimer in the
   12  *    documentation and/or other materials provided with the distribution.
   13  * 3. Neither the name of the author nor the names of contributors
   14  *    may be used to endorse or promote products derived from this software
   15  *    without specific prior written permission.
   16  *
   17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   27  * SUCH DAMAGE.
   28  *
   29  * $FreeBSD: src/sys/i386/include/md_var.h,v 1.10.2.5 1999/09/05 08:11:53 peter Exp $
   30  */
   31 
   32 #ifndef _MACHINE_MD_VAR_H_
   33 #define _MACHINE_MD_VAR_H_
   34 
   35 /*
   36  * Miscellaneous machine-dependent declarations.
   37  */
   38 
   39 extern  int     Maxmem;
   40 extern  u_int   atdevbase;      /* offset in virtual memory of ISA io mem */
   41 extern  u_long  cpu_feature;
   42 extern  u_long  cpu_high;
   43 extern  u_long  cpu_id;
   44 extern  u_long  cyrix_did;
   45 extern  char    cpu_vendor[];
   46 extern  char    etext[];
   47 extern  char    kstack[];
   48 extern  void    (*netisrs[32]) __P((void));
   49 extern  int     nfs_diskless_valid;
   50 extern  char    sigcode[];
   51 extern  int     szsigcode;
   52 extern  int     busdma_swi_pending;
   53 
   54 typedef void alias_for_inthand_t __P((u_int cs, u_int ef, u_int esp, u_int ss));
   55 struct  proc;
   56 struct  reg;
   57 
   58 void    bcopyb __P((const void *from, void *to, size_t len));
   59 void    cpu_reset __P((void));
   60 void    cpu_halt __P((void));
   61 void    doreti_iret __P((void)) __asm(__STRING(doreti_iret));
   62 void    doreti_iret_fault __P((void)) __asm(__STRING(doreti_iret_fault));
   63 void    doreti_popl_ds __P((void)) __asm(__STRING(doreti_popl_ds));
   64 void    doreti_popl_ds_fault __P((void)) __asm(__STRING(doreti_popl_ds_fault));
   65 void    doreti_popl_es __P((void)) __asm(__STRING(doreti_popl_es));
   66 void    doreti_popl_es_fault __P((void)) __asm(__STRING(doreti_popl_es_fault));
   67 int     fill_regs __P((struct proc *p, struct reg *regs));
   68 void    fillw __P((int /*u_short*/ pat, void *base, size_t cnt));
   69 int     fusword __P((void *base));
   70 int     is_physical_memory __P((vm_offset_t addr));
   71 u_long  kvtop __P((void *addr));
   72 void    setidt __P((int idx, alias_for_inthand_t *func, int typ, int dpl,
   73                     int selec));
   74 void    swi_vm __P((void));
   75 void    userconfig __P((void));
   76 void    vm_bounce_init __P((void));
   77 int     vm_page_zero_idle __P((void));
   78 void    busdma_swi __P((void));
   79 
   80 #ifdef PC98
   81 extern int need_pre_dma_flush;
   82 extern int need_post_dma_flush;
   83 #endif
   84 
   85 #endif /* !_MACHINE_MD_VAR_H_ */

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