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

     /*-
      * Copyright (c) 1995 Bruce D. Evans.
      * All rights reserved.
      *
      * Redistribution and use in source and binary forms, with or without
      * modification, are permitted provided that the following conditions
      * are met:
      * 1. Redistributions of source code must retain the above copyright
      *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     * 3. Neither the name of the author nor the names of contributors
     *    may be used to endorse or promote products derived from this software
     *    without specific prior written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     * SUCH DAMAGE.
     *
     * $FreeBSD: releng/10.3/sys/i386/include/md_var.h 286852 2015-08-17 18:33:16Z kib $
     */
    
    #ifndef _MACHINE_MD_VAR_H_
    #define _MACHINE_MD_VAR_H_
    
    /*
     * Miscellaneous machine-dependent declarations.
     */
    
    extern  long    Maxmem;
    extern  u_int   basemem;        /* PA of original top of base memory */
    extern  int     busdma_swi_pending;
    extern  u_int   cpu_exthigh;
    extern  u_int   cpu_feature;
    extern  u_int   cpu_feature2;
    extern  u_int   amd_feature;
    extern  u_int   amd_feature2;
    extern  u_int   amd_pminfo;
    extern  u_int   via_feature_rng;
    extern  u_int   via_feature_xcrypt;
    extern  u_int   cpu_clflush_line_size;
    extern  u_int   cpu_stdext_feature;
    extern  u_int   cpu_stdext_feature2;
    extern  u_int   cpu_fxsr;
    extern  u_int   cpu_high;
    extern  u_int   cpu_id;
    extern  u_int   cpu_max_ext_state_size;
    extern  u_int   cpu_mxcsr_mask;
    extern  u_int   cpu_procinfo;
    extern  u_int   cpu_procinfo2;
    extern  char    cpu_vendor[];
    extern  u_int   cpu_vendor_id;
    extern  u_int   cpu_mon_mwait_flags;
    extern  u_int   cpu_mon_min_size;
    extern  u_int   cpu_mon_max_size;
    extern  u_int   cpu_maxphyaddr;
    extern  u_int   cyrix_did;
    #if defined(I586_CPU) && !defined(NO_F00F_HACK)
    extern  int     has_f00f_bug;
    #endif
    extern  u_int   hv_high;
    extern  char    hv_vendor[];
    extern  char    kstack[];
    extern  char    sigcode[];
    extern  int     szsigcode;
    #ifdef COMPAT_FREEBSD4
    extern  int     szfreebsd4_sigcode;
    #endif
    #ifdef COMPAT_43
    extern  int     szosigcode;
    #endif
    extern  uint32_t *vm_page_dump;
    extern  int     vm_page_dump_size;
    extern  int     workaround_erratum383;
    extern  int     _udatasel;
    extern  int     _ucodesel;
    extern  int     use_xsave;
    extern  uint64_t xsave_mask;
    
    typedef void alias_for_inthand_t(u_int cs, u_int ef, u_int esp, u_int ss);
    struct  pcb;
    union   savefpu;
    struct  thread;
    struct  reg;
    struct  fpreg;
    struct  dbreg;
    struct  dumperinfo;
    struct  segment_descriptor;
    
    void    *alloc_fpusave(int flags);
   void    bcopyb(const void *from, void *to, size_t len);
   void    busdma_swi(void);
   void    cpu_setregs(void);
   void    cpu_switch_load_gs(void) __asm(__STRING(cpu_switch_load_gs));
   void    doreti_iret(void) __asm(__STRING(doreti_iret));
   void    doreti_iret_fault(void) __asm(__STRING(doreti_iret_fault));
   void    doreti_popl_ds(void) __asm(__STRING(doreti_popl_ds));
   void    doreti_popl_ds_fault(void) __asm(__STRING(doreti_popl_ds_fault));
   void    doreti_popl_es(void) __asm(__STRING(doreti_popl_es));
   void    doreti_popl_es_fault(void) __asm(__STRING(doreti_popl_es_fault));
   void    doreti_popl_fs(void) __asm(__STRING(doreti_popl_fs));
   void    doreti_popl_fs_fault(void) __asm(__STRING(doreti_popl_fs_fault));
   void    dump_add_page(vm_paddr_t);
   void    dump_drop_page(vm_paddr_t);
   void    finishidentcpu(void);
   void    fillw(int /*u_short*/ pat, void *base, size_t cnt);
   void    fill_based_sd(struct segment_descriptor *sdp, uint32_t base);
   void    initializecpu(void);
   void    initializecpucache(void);
   bool    intel_fix_cpuid(void);
   void    i686_pagezero(void *addr);
   void    sse2_pagezero(void *addr);
   void    init_AMD_Elan_sc520(void);
   int     is_physical_memory(vm_paddr_t addr);
   int     isa_nmi(int cd);
   vm_paddr_t kvtop(void *addr);
   void    panicifcpuunsupported(void);
   void    ppro_reenable_apic(void);
   void    printcpuinfo(void);
   void    setidt(int idx, alias_for_inthand_t *func, int typ, int dpl, int selec);
   int     user_dbreg_trap(void);
   void    minidumpsys(struct dumperinfo *);
   union savefpu *get_pcb_user_save_td(struct thread *td);
   union savefpu *get_pcb_user_save_pcb(struct pcb *pcb);
   struct pcb *get_pcb_td(struct thread *td);
   
   #endif /* !_MACHINE_MD_VAR_H_ */

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