md_var.h revision 299062
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: stable/10/sys/i386/include/md_var.h 299062 2016-05-04 11:53:30Z avg $ 30 */ 31 32#ifndef _MACHINE_MD_VAR_H_ 33#define _MACHINE_MD_VAR_H_ 34 35/* 36 * Miscellaneous machine-dependent declarations. 37 */ 38 39extern long Maxmem; 40extern u_int basemem; /* PA of original top of base memory */ 41extern int busdma_swi_pending; 42extern u_int cpu_exthigh; 43extern u_int cpu_feature; 44extern u_int cpu_feature2; 45extern u_int amd_feature; 46extern u_int amd_feature2; 47extern u_int amd_pminfo; 48extern u_int via_feature_rng; 49extern u_int via_feature_xcrypt; 50extern u_int cpu_clflush_line_size; 51extern u_int cpu_stdext_feature; 52extern u_int cpu_stdext_feature2; 53extern u_int cpu_fxsr; 54extern u_int cpu_high; 55extern u_int cpu_id; 56extern u_int cpu_max_ext_state_size; 57extern u_int cpu_mxcsr_mask; 58extern u_int cpu_procinfo; 59extern u_int cpu_procinfo2; 60extern char cpu_vendor[]; 61extern u_int cpu_vendor_id; 62extern u_int cpu_mon_mwait_flags; 63extern u_int cpu_mon_min_size; 64extern u_int cpu_mon_max_size; 65extern u_int cpu_maxphyaddr; 66extern u_int cyrix_did; 67#if defined(I586_CPU) && !defined(NO_F00F_HACK) 68extern int has_f00f_bug; 69#endif 70extern u_int hv_high; 71extern char hv_vendor[]; 72extern char kstack[]; 73extern char sigcode[]; 74extern int szsigcode; 75#ifdef COMPAT_FREEBSD4 76extern int szfreebsd4_sigcode; 77#endif 78#ifdef COMPAT_43 79extern int szosigcode; 80#endif 81extern uint32_t *vm_page_dump; 82extern int vm_page_dump_size; 83extern int workaround_erratum383; 84extern int _udatasel; 85extern int _ucodesel; 86extern int use_xsave; 87extern uint64_t xsave_mask; 88 89typedef void alias_for_inthand_t(u_int cs, u_int ef, u_int esp, u_int ss); 90struct pcb; 91union savefpu; 92struct thread; 93struct reg; 94struct fpreg; 95struct dbreg; 96struct dumperinfo; 97struct segment_descriptor; 98 99void *alloc_fpusave(int flags); 100void bcopyb(const void *from, void *to, size_t len); 101void busdma_swi(void); 102void cpu_setregs(void); 103void cpu_switch_load_gs(void) __asm(__STRING(cpu_switch_load_gs)); 104void doreti_iret(void) __asm(__STRING(doreti_iret)); 105void doreti_iret_fault(void) __asm(__STRING(doreti_iret_fault)); 106void doreti_popl_ds(void) __asm(__STRING(doreti_popl_ds)); 107void doreti_popl_ds_fault(void) __asm(__STRING(doreti_popl_ds_fault)); 108void doreti_popl_es(void) __asm(__STRING(doreti_popl_es)); 109void doreti_popl_es_fault(void) __asm(__STRING(doreti_popl_es_fault)); 110void doreti_popl_fs(void) __asm(__STRING(doreti_popl_fs)); 111void doreti_popl_fs_fault(void) __asm(__STRING(doreti_popl_fs_fault)); 112void dump_add_page(vm_paddr_t); 113void dump_drop_page(vm_paddr_t); 114void finishidentcpu(void); 115void fillw(int /*u_short*/ pat, void *base, size_t cnt); 116void fill_based_sd(struct segment_descriptor *sdp, uint32_t base); 117void initializecpu(void); 118void initializecpucache(void); 119bool fix_cpuid(void); 120void i686_pagezero(void *addr); 121void sse2_pagezero(void *addr); 122void init_AMD_Elan_sc520(void); 123int is_physical_memory(vm_paddr_t addr); 124int isa_nmi(int cd); 125vm_paddr_t kvtop(void *addr); 126void panicifcpuunsupported(void); 127void ppro_reenable_apic(void); 128void printcpuinfo(void); 129void setidt(int idx, alias_for_inthand_t *func, int typ, int dpl, int selec); 130int user_dbreg_trap(void); 131void minidumpsys(struct dumperinfo *); 132union savefpu *get_pcb_user_save_td(struct thread *td); 133union savefpu *get_pcb_user_save_pcb(struct pcb *pcb); 134struct pcb *get_pcb_td(struct thread *td); 135 136#endif /* !_MACHINE_MD_VAR_H_ */ 137