1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 1995 Bruce D. Evans. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the author nor the names of contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * $FreeBSD$ 32 */ 33 34 #ifndef _MACHINE_MD_VAR_H_ 35 #define _MACHINE_MD_VAR_H_ 36 37 #include <x86/x86_var.h> 38 39 extern u_int cpu_fxsr; 40 extern u_int cyrix_did; 41 #if defined(I586_CPU) && !defined(NO_F00F_HACK) 42 extern int has_f00f_bug; 43 #endif 44 #ifdef COMPAT_FREEBSD4 45 extern int szfreebsd4_sigcode; 46 #endif 47 #ifdef COMPAT_43 48 extern int szosigcode; 49 extern int sz_lcall_tramp; 50 #endif 51 extern vm_offset_t proc0kstack; 52 extern size_t setidt_disp; 53 54 struct segment_descriptor; 55 union savefpu; 56 57 int cp_slow0(vm_offset_t uva, size_t len, bool write, 58 void (*f)(vm_offset_t, void *), void *arg); 59 void cpu_switch_load_gs(void) __asm(__STRING(cpu_switch_load_gs)); 60 void copyout_init_tramp(void); 61 void doreti_iret(void) __asm(__STRING(doreti_iret)); 62 void doreti_iret_fault(void) __asm(__STRING(doreti_iret_fault)); 63 void doreti_popl_ds(void) __asm(__STRING(doreti_popl_ds)); 64 void doreti_popl_ds_fault(void) __asm(__STRING(doreti_popl_ds_fault)); 65 void doreti_popl_es(void) __asm(__STRING(doreti_popl_es)); 66 void doreti_popl_es_fault(void) __asm(__STRING(doreti_popl_es_fault)); 67 void doreti_popl_fs(void) __asm(__STRING(doreti_popl_fs)); 68 void doreti_popl_fs_fault(void) __asm(__STRING(doreti_popl_fs_fault)); 69 void fill_based_sd(struct segment_descriptor *sdp, uint32_t base); 70 void i686_pagezero(void *addr); 71 void sse2_pagezero(void *addr); 72 int cpu_minidumpsys_nopae(struct dumperinfo *, const struct minidumpstate *); 73 int cpu_minidumpsys_pae(struct dumperinfo *, const struct minidumpstate *); 74 void init_AMD_Elan_sc520(void); 75 vm_paddr_t kvtop(void *addr); 76 void panicifcpuunsupported(void); 77 void ppro_reenable_apic(void); 78 void set_fsbase(struct thread *td, uint32_t base); 79 void set_gsbase(struct thread *td, uint32_t base); 80 void setidt(int idx, alias_for_inthand_t *func, int typ, int dpl, int selec); 81 void setidt_nodisp(int idx, uintptr_t func, int typ, int dpl, int selec); 82 union savefpu *get_pcb_user_save_td(struct thread *td); 83 union savefpu *get_pcb_user_save_pcb(struct pcb *pcb); 84 85 #endif /* !_MACHINE_MD_VAR_H_ */ 86