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_fxsr; 52 extern u_int cpu_high; 53 extern u_int cpu_id; 54 extern u_int cpu_mxcsr_mask; 55 extern u_int cpu_procinfo; 56 extern u_int cpu_procinfo2; 57 extern char cpu_vendor[]; 58 extern u_int cpu_vendor_id; 59 extern u_int cyrix_did; 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 char kstack[]; 64 extern char sigcode[]; 65 extern int szsigcode; 66 #ifdef COMPAT_FREEBSD4 67 extern int szfreebsd4_sigcode; 68 #endif 69 #ifdef COMPAT_43 70 extern int szosigcode; 71 #endif 72 extern uint32_t *vm_page_dump; 73 extern int vm_page_dump_size; 74 extern int workaround_erratum383; 75 76 typedef void alias_for_inthand_t(u_int cs, u_int ef, u_int esp, u_int ss); 77 struct thread; 78 struct reg; 79 struct fpreg; 80 struct dbreg; 81 struct dumperinfo; 82 83 void bcopyb(const void *from, void *to, size_t len); 84 void busdma_swi(void); 85 void cpu_setregs(void); 86 void cpu_switch_load_gs(void) __asm(__STRING(cpu_switch_load_gs)); 87 void doreti_iret(void) __asm(__STRING(doreti_iret)); 88 void doreti_iret_fault(void) __asm(__STRING(doreti_iret_fault)); 89 void doreti_popl_ds(void) __asm(__STRING(doreti_popl_ds)); 90 void doreti_popl_ds_fault(void) __asm(__STRING(doreti_popl_ds_fault)); 91 void doreti_popl_es(void) __asm(__STRING(doreti_popl_es)); 92 void doreti_popl_es_fault(void) __asm(__STRING(doreti_popl_es_fault)); 93 void doreti_popl_fs(void) __asm(__STRING(doreti_popl_fs)); 94 void doreti_popl_fs_fault(void) __asm(__STRING(doreti_popl_fs_fault)); 95 void dump_add_page(vm_paddr_t); 96 void dump_drop_page(vm_paddr_t); 97 void initializecpu(void); 98 void enable_sse(void); 99 void fillw(int /*u_short*/ pat, void *base, size_t cnt); 100 void i686_pagezero(void *addr); 101 void sse2_pagezero(void *addr); 102 void init_AMD_Elan_sc520(void); 103 int is_physical_memory(vm_paddr_t addr); 104 int isa_nmi(int cd); 105 vm_paddr_t kvtop(void *addr); 106 void setidt(int idx, alias_for_inthand_t *func, int typ, int dpl, int selec); 107 int user_dbreg_trap(void); 108 void minidumpsys(struct dumperinfo *); 109 110 #endif /* !_MACHINE_MD_VAR_H_ */ 111