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  */
  32
  33 #ifndef _MACHINE_MD_VAR_H_
  34 #define _MACHINE_MD_VAR_H_
  35
  36 #include <machine/globaldata.h>
  37
  38 /*
  39  * Miscellaneous machine-dependent declarations.
  40  */
  41
  42 extern  u_long  atdevbase;      /* offset in virtual memory of ISA io mem */
  43 extern  int     busdma_swi_pending;
  44 extern  void    (*cpu_idle_hook)(void);
  45 extern  void    cpu_idle(void);
  46 extern  u_int   cpu_exthigh;
  47 extern  u_int   via_feature_rng;
  48 extern  u_int   via_feature_xcrypt;
  49 extern  u_int   amd_feature;
  50 extern  u_int   amd_feature2;
  51 extern  u_int   cpu_clflush_line_size;
  52 extern  u_int   cpu_stdext_feature;
  53 extern  u_int   cpu_thermal_feature;
  54 extern  u_int   cpu_mwait_feature;
  55 extern  u_int   cpu_mwait_extemu;
  56 extern  u_int   cpu_fxsr;
  57 extern  u_int   cpu_xsave;
  58 extern  u_int   cpu_high;
  59 extern  u_int   cpu_id;
  60 extern  u_int   cpu_procinfo;
  61 extern  u_int   cpu_procinfo2;
  62 extern  char    cpu_vendor[];
  63 extern  u_int   cpu_vendor_id;
  64 extern  char    kstack[];
  65 extern  char    sigcode[];
  66 extern  int     szsigcode;
  67 extern  uint64_t *vm_page_dump;
  68 extern  vm_offset_t vm_page_dump_size;
  69
  70
  71 typedef void alias_for_inthand_t(u_int cs, u_int ef, u_int esp, u_int ss);
  72 struct  thread;
  73 struct  reg;
  74 struct  fpreg;
  75 struct  dbreg;
  76 struct __mcontext;
  77 struct dumperinfo;
  78
  79 void    busdma_swi(void);
  80 void    cpu_gdinit (struct mdglobaldata *gd, int cpu);
  81 void    cpu_idle_restore (void);        /* cannot be called from C */
  82 void    cpu_setregs(void);
  83 void    doreti_iret(void) __asm(__STRING(doreti_iret));
  84 void    doreti_iret_fault(void) __asm(__STRING(doreti_iret_fault));
  85 void    enable_sse(void);
  86 void    fillw(int /*u_short*/ pat, void *base, size_t cnt);
  87 void    pagezero(void *addr);
  88 void    setidt_global(int idx, alias_for_inthand_t *func,
  89             int typ, int dpl, int ist);
  90 void    setidt(int idx, alias_for_inthand_t *func,
  91             int typ, int dpl, int ist, int cpu);
  92 int     user_dbreg_trap(void);
  93 void    fpstate_drop(struct thread *td);
  94
  95 int     npxdna(void);
  96 void    npxdna_quick(struct thread *td);
  97 void npxpush(struct __mcontext *mctx);
  98 void npxpop(struct __mcontext *mctx);
  99
 100 void    cpu_heavy_restore (void);
 101 void    cpu_kthread_restore (void);/* cannot be called from C */
 102
 103 thread_t cpu_exit_switch (struct thread *next);
 104
 105 void    syscall2 (struct trapframe *);
 106 void    trap_handle_userenter(struct thread *);
 107 void    trap_handle_userexit(struct trapframe *, int);
 108 void    minidumpsys(struct dumperinfo *);
 109 void    dump_add_page(vm_paddr_t);
 110 void    dump_drop_page(vm_paddr_t);
 111 boolean_t cpu_mwait_hint_valid(uint32_t);
 112 void    cpu_mwait_cx_no_bmsts(void);
 113 void    cpu_mwait_cx_no_bmarb(void);
 114
 115 #endif /* !_MACHINE_MD_VAR_H_ */