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 /* 36 * Miscellaneous machine-dependent declarations. 37 */ 38 39 extern long Maxmem; 40 extern u_int basemem; /* PA of original top of base memory */ 41 extern int busdma_swi_pending; 42 extern u_int cpu_exthigh; 43 extern u_int cpu_feature; 44 extern u_int cpu_feature2; 45 extern u_int amd_feature; 46 extern u_int amd_feature2; 47 extern u_int amd_pminfo; 48 extern u_int via_feature_rng; 49 extern u_int via_feature_xcrypt; 50 extern u_int cpu_clflush_line_size; 51 extern u_int cpu_stdext_feature; 52 extern u_int cpu_fxsr; 53 extern u_int cpu_high; 54 extern u_int cpu_id; 55 extern u_int cpu_mxcsr_mask; 56 extern u_int cpu_procinfo; 57 extern u_int cpu_procinfo2; 58 extern char cpu_vendor[]; 59 extern u_int cpu_vendor_id; 60 extern u_int cpu_mon_mwait_flags; 61 extern u_int cpu_mon_min_size; 62 extern u_int cpu_mon_max_size; 63 extern u_int cyrix_did; 64 #if defined(I586_CPU) && !defined(NO_F00F_HACK) 65 extern int has_f00f_bug; 66 #endif 67 extern char kstack[]; 68 extern char sigcode[]; 69 extern int szsigcode; 70 #ifdef COMPAT_FREEBSD4 71 extern int szfreebsd4_sigcode; 72 #endif 73 #ifdef COMPAT_43 74 extern int szosigcode; 75 #endif 76 extern uint32_t *vm_page_dump; 77 extern int vm_page_dump_size; 78 extern int workaround_erratum383; 79 80 typedef void alias_for_inthand_t(u_int cs, u_int ef, u_int esp, u_int ss); 81 struct thread; 82 struct reg; 83 struct fpreg; 84 struct dbreg; 85 struct dumperinfo; 86 87 void bcopyb(const void *from, void *to, size_t len); 88 void busdma_swi(void); 89 void cpu_setregs(void); 90 void cpu_switch_load_gs(void) __asm(__STRING(cpu_switch_load_gs)); 91 void doreti_iret(void) __asm(__STRING(doreti_iret)); 92 void doreti_iret_fault(void) __asm(__STRING(doreti_iret_fault)); 93 void doreti_popl_ds(void) __asm(__STRING(doreti_popl_ds)); 94 void doreti_popl_ds_fault(void) __asm(__STRING(doreti_popl_ds_fault)); 95 void doreti_popl_es(void) __asm(__STRING(doreti_popl_es)); 96 void doreti_popl_es_fault(void) __asm(__STRING(doreti_popl_es_fault)); 97 void doreti_popl_fs(void) __asm(__STRING(doreti_popl_fs)); 98 void doreti_popl_fs_fault(void) __asm(__STRING(doreti_popl_fs_fault)); 99 void dump_add_page(vm_paddr_t); 100 void dump_drop_page(vm_paddr_t); 101 void finishidentcpu(void); 102 void fillw(int /*u_short*/ pat, void *base, size_t cnt); 103 void initializecpu(void); 104 void initializecpucache(void); 105 void i686_pagezero(void *addr); 106 void sse2_pagezero(void *addr); 107 void init_AMD_Elan_sc520(void); 108 int is_physical_memory(vm_paddr_t addr); 109 int isa_nmi(int cd); 110 vm_paddr_t kvtop(void *addr); 111 void panicifcpuunsupported(void); 112 void ppro_reenable_apic(void); 113 void printcpuinfo(void); 114 void setidt(int idx, alias_for_inthand_t *func, int typ, int dpl, int selec); 115 int user_dbreg_trap(void); 116 int minidumpsys(struct dumperinfo *); 117 118 #endif /* !_MACHINE_MD_VAR_H_ */ 119