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 * $FreeBSD$ 30 */ 31 32 #ifndef _MACHINE_MD_VAR_H_ 33 #define _MACHINE_MD_VAR_H_ 34 35 #include <x86/x86_var.h> 36 37 extern u_int cyrix_did; 38 #if defined(I586_CPU) && !defined(NO_F00F_HACK) 39 extern int has_f00f_bug; 40 #endif 41 #ifdef COMPAT_FREEBSD4 42 extern int szfreebsd4_sigcode; 43 #endif 44 #ifdef COMPAT_43 45 extern int szosigcode; 46 #endif 47 extern uint32_t *vm_page_dump; 48 49 typedef void alias_for_inthand_t(u_int cs, u_int ef, u_int esp, u_int ss); 50 struct segment_descriptor; 51 union savefpu; 52 53 void bcopyb(const void *from, void *to, size_t len); 54 void cpu_switch_load_gs(void) __asm(__STRING(cpu_switch_load_gs)); 55 void doreti_iret(void) __asm(__STRING(doreti_iret)); 56 void doreti_iret_fault(void) __asm(__STRING(doreti_iret_fault)); 57 void doreti_popl_ds(void) __asm(__STRING(doreti_popl_ds)); 58 void doreti_popl_ds_fault(void) __asm(__STRING(doreti_popl_ds_fault)); 59 void doreti_popl_es(void) __asm(__STRING(doreti_popl_es)); 60 void doreti_popl_es_fault(void) __asm(__STRING(doreti_popl_es_fault)); 61 void doreti_popl_fs(void) __asm(__STRING(doreti_popl_fs)); 62 void doreti_popl_fs_fault(void) __asm(__STRING(doreti_popl_fs_fault)); 63 void finishidentcpu(void); 64 void fill_based_sd(struct segment_descriptor *sdp, uint32_t base); 65 void i686_pagezero(void *addr); 66 void sse2_pagezero(void *addr); 67 void init_AMD_Elan_sc520(void); 68 vm_paddr_t kvtop(void *addr); 69 void ppro_reenable_apic(void); 70 void setidt(int idx, alias_for_inthand_t *func, int typ, int dpl, int selec); 71 union savefpu *get_pcb_user_save_td(struct thread *td); 72 union savefpu *get_pcb_user_save_pcb(struct pcb *pcb); 73 struct pcb *get_pcb_td(struct thread *td); 74 75 #endif /* !_MACHINE_MD_VAR_H_ */ 76