sys/platform/pc64/include/md_var.h

   1 /*-
   2  * Copyright (c) 1995 Bruce D. Evans.
   3  * Copyright (c) 2008 The DragonFly Project.
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  * 3. Neither the name of the author nor the names of contributors
  15  *    may be used to endorse or promote products derived from this software
  16  *    without specific prior written permission.
  17  *
  18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  19  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  21  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  22  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  23  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  24  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  28  * SUCH DAMAGE.
  29  *
  30  * $FreeBSD: src/sys/amd64/include/md_var.h,v 1.71 2004/01/29 00:05:03 peter Exp $
  31  * $DragonFly: src/sys/platform/pc64/include/md_var.h,v 1.5 2008/08/29 17:07:17 dillon Exp $
  32  */
  33
  34 #ifndef _MACHINE_MD_VAR_H_
  35 #define _MACHINE_MD_VAR_H_
  36
  37 #include <machine/globaldata.h>
  38
  39 /*
  40  * Miscellaneous machine-dependent declarations.
  41  */
  42
  43 extern  u_long  atdevbase;      /* offset in virtual memory of ISA io mem */
  44 extern  u_int   basemem;
  45 extern  int     busdma_swi_pending;
  46 extern  void    (*cpu_idle_hook)(void);
  47 extern  void    cpu_idle(void);
  48 extern  u_int   cpu_exthigh;
  49 extern  u_int   via_feature_rng;
  50 extern  u_int   via_feature_xcrypt;
  51 extern  u_int   amd_feature;
  52 extern  u_int   amd_feature2;
  53 extern  u_int   cpu_fxsr;
  54 extern  u_int   cpu_high;
  55 extern  u_int   cpu_id;
  56 extern  u_int   cpu_procinfo;
  57 extern  u_int   cpu_procinfo2;
  58 extern  char    cpu_vendor[];
  59 extern  u_int   cpu_vendor_id;
  60 extern  char    kstack[];
  61 extern  char    sigcode[];
  62 extern  int     szsigcode;
  63
  64 typedef void alias_for_inthand_t(u_int cs, u_int ef, u_int esp, u_int ss);
  65 struct  thread;
  66 struct  reg;
  67 struct  fpreg;
  68 struct  dbreg;
  69 struct __mcontext;
  70
  71 void    busdma_swi(void);
  72 void    cpu_gdinit (struct mdglobaldata *gd, int cpu);
  73 void    cpu_idle_restore (void);        /* cannot be called from C */
  74 void    cpu_setregs(void);
  75 void    doreti_iret(void) __asm(__STRING(doreti_iret));
  76 void    doreti_iret_fault(void) __asm(__STRING(doreti_iret_fault));
  77 void    enable_sse(void);
  78 void    fillw(int /*u_short*/ pat, void *base, size_t cnt);
  79 void    pagezero(void *addr);
  80 void    pagecopy(void *from, void *to);
  81 void    setidt(int idx, alias_for_inthand_t *func, int typ, int dpl, int ist);
  82 int     user_dbreg_trap(void);
  83 void    fpstate_drop(struct thread *td);
  84
  85 void npxpush(struct __mcontext *mctx);
  86 void npxpop(struct __mcontext *mctx);
  87
  88 void    cpu_heavy_restore (void);
  89 void    cpu_kthread_restore (void);/* cannot be called from C */
  90
  91 void    cpu_exit_switch (struct thread *next);
  92
  93 void    syscall2 (struct trapframe *);
  94
  95 #endif /* !_MACHINE_MD_VAR_H_ */